diff --git a/public/assets/css/general.css b/public/assets/css/general.css
index 5480be2b939be0ebfa75d01807402853ceafaa33..6d326464e6f4d785064e5e4ddd09996b1bb94840 100644
--- a/public/assets/css/general.css
+++ b/public/assets/css/general.css
@@ -125,3 +125,7 @@ body, html {
grid-column: 2/5;
grid-row: 4/5;
}
+#map {
+ height: 400px;
+ width: 100%;
+ }
\ No newline at end of file
diff --git a/public/assets/dist/map.css b/public/assets/dist/map.css
new file mode 100644
index 0000000000000000000000000000000000000000..1345edc362c8718b67c55deb5c088ff62cdfa1b6
--- /dev/null
+++ b/public/assets/dist/map.css
@@ -0,0 +1,277 @@
+.ol-box {
+ box-sizing: border-box;
+ border-radius: 2px;
+ border: 2px solid blue;
+}
+
+.ol-mouse-position {
+ top: 8px;
+ right: 8px;
+ position: absolute;
+}
+
+.ol-scale-line {
+ background: rgba(0,60,136,0.3);
+ border-radius: 4px;
+ bottom: 8px;
+ left: 8px;
+ padding: 2px;
+ position: absolute;
+}
+.ol-scale-line-inner {
+ border: 1px solid #eee;
+ border-top: none;
+ color: #eee;
+ font-size: 10px;
+ text-align: center;
+ margin: 1px;
+ will-change: contents, width;
+ transition: all 0.25s;
+}
+.ol-scale-bar {
+ position: absolute;
+ bottom: 8px;
+ left: 8px;
+}
+.ol-scale-step-marker {
+ width: 1px;
+ height: 15px;
+ background-color: #000000;
+ float: right;
+ z-Index: 10;
+}
+.ol-scale-step-text {
+ position: absolute;
+ bottom: -5px;
+ font-size: 12px;
+ z-Index: 11;
+ color: #000000;
+ text-shadow: -2px 0 #FFFFFF, 0 2px #FFFFFF, 2px 0 #FFFFFF, 0 -2px #FFFFFF;
+}
+.ol-scale-text {
+ position: absolute;
+ font-size: 14px;
+ text-align: center;
+ bottom: 25px;
+ color: #000000;
+ text-shadow: -2px 0 #FFFFFF, 0 2px #FFFFFF, 2px 0 #FFFFFF, 0 -2px #FFFFFF;
+}
+.ol-scale-singlebar {
+ position: relative;
+ height: 10px;
+ z-Index: 9;
+ box-sizing: border-box;
+ border: 1px solid black;
+}
+
+.ol-unsupported {
+ display: none;
+}
+.ol-viewport, .ol-unselectable {
+ -webkit-touch-callout: none;
+ -webkit-user-select: none;
+ -moz-user-select: none;
+ -ms-user-select: none;
+ user-select: none;
+ -webkit-tap-highlight-color: rgba(0,0,0,0);
+}
+.ol-selectable {
+ -webkit-touch-callout: default;
+ -webkit-user-select: text;
+ -moz-user-select: text;
+ -ms-user-select: text;
+ user-select: text;
+}
+.ol-grabbing {
+ cursor: -webkit-grabbing;
+ cursor: -moz-grabbing;
+ cursor: grabbing;
+}
+.ol-grab {
+ cursor: move;
+ cursor: -webkit-grab;
+ cursor: -moz-grab;
+ cursor: grab;
+}
+.ol-control {
+ position: absolute;
+ background-color: rgba(255,255,255,0.4);
+ border-radius: 4px;
+ padding: 2px;
+}
+.ol-control:hover {
+ background-color: rgba(255,255,255,0.6);
+}
+.ol-zoom {
+ top: .5em;
+ left: .5em;
+}
+.ol-rotate {
+ top: .5em;
+ right: .5em;
+ transition: opacity .25s linear, visibility 0s linear;
+}
+.ol-rotate.ol-hidden {
+ opacity: 0;
+ visibility: hidden;
+ transition: opacity .25s linear, visibility 0s linear .25s;
+}
+.ol-zoom-extent {
+ top: 4.643em;
+ left: .5em;
+}
+.ol-full-screen {
+ right: .5em;
+ top: .5em;
+}
+
+.ol-control button {
+ display: block;
+ margin: 1px;
+ padding: 0;
+ color: white;
+ font-size: 1.14em;
+ font-weight: bold;
+ text-decoration: none;
+ text-align: center;
+ height: 1.375em;
+ width: 1.375em;
+ line-height: .4em;
+ background-color: rgba(0,60,136,0.5);
+ border: none;
+ border-radius: 2px;
+}
+.ol-control button::-moz-focus-inner {
+ border: none;
+ padding: 0;
+}
+.ol-zoom-extent button {
+ line-height: 1.4em;
+}
+.ol-compass {
+ display: block;
+ font-weight: normal;
+ font-size: 1.2em;
+ will-change: transform;
+}
+.ol-touch .ol-control button {
+ font-size: 1.5em;
+}
+.ol-touch .ol-zoom-extent {
+ top: 5.5em;
+}
+.ol-control button:hover,
+.ol-control button:focus {
+ text-decoration: none;
+ background-color: rgba(0,60,136,0.7);
+}
+.ol-zoom .ol-zoom-in {
+ border-radius: 2px 2px 0 0;
+}
+.ol-zoom .ol-zoom-out {
+ border-radius: 0 0 2px 2px;
+}
+
+
+.ol-attribution {
+ text-align: right;
+ bottom: .5em;
+ right: .5em;
+ max-width: calc(100% - 1.3em);
+}
+
+.ol-attribution ul {
+ margin: 0;
+ padding: 0 .5em;
+ color: #000;
+ text-shadow: 0 0 2px #fff;
+}
+.ol-attribution li {
+ display: inline;
+ list-style: none;
+}
+.ol-attribution li:not(:last-child):after {
+ content: " ";
+}
+.ol-attribution img {
+ max-height: 2em;
+ max-width: inherit;
+ vertical-align: middle;
+}
+.ol-attribution ul, .ol-attribution button {
+ display: inline-block;
+}
+.ol-attribution.ol-collapsed ul {
+ display: none;
+}
+.ol-attribution:not(.ol-collapsed) {
+ background: rgba(255,255,255,0.8);
+}
+.ol-attribution.ol-uncollapsible {
+ bottom: 0;
+ right: 0;
+ border-radius: 4px 0 0;
+}
+.ol-attribution.ol-uncollapsible img {
+ margin-top: -.2em;
+ max-height: 1.6em;
+}
+.ol-attribution.ol-uncollapsible button {
+ display: none;
+}
+
+.ol-zoomslider {
+ top: 4.5em;
+ left: .5em;
+ height: 200px;
+}
+.ol-zoomslider button {
+ position: relative;
+ height: 10px;
+}
+
+.ol-touch .ol-zoomslider {
+ top: 5.5em;
+}
+
+.ol-overviewmap {
+ left: 0.5em;
+ bottom: 0.5em;
+}
+.ol-overviewmap.ol-uncollapsible {
+ bottom: 0;
+ left: 0;
+ border-radius: 0 4px 0 0;
+}
+.ol-overviewmap .ol-overviewmap-map,
+.ol-overviewmap button {
+ display: inline-block;
+}
+.ol-overviewmap .ol-overviewmap-map {
+ border: 1px solid #7b98bc;
+ height: 150px;
+ margin: 2px;
+ width: 150px;
+}
+.ol-overviewmap:not(.ol-collapsed) button{
+ bottom: 1px;
+ left: 2px;
+ position: absolute;
+}
+.ol-overviewmap.ol-collapsed .ol-overviewmap-map,
+.ol-overviewmap.ol-uncollapsible button {
+ display: none;
+}
+.ol-overviewmap:not(.ol-collapsed) {
+ background: rgba(255,255,255,0.8);
+}
+.ol-overviewmap-box {
+ border: 2px dotted rgba(0,60,136,0.7);
+}
+
+.ol-overviewmap .ol-overviewmap-box:hover {
+ cursor: move;
+}
+
+
+/*# sourceMappingURL=/map.css.map */
\ No newline at end of file
diff --git a/public/assets/dist/map.css.map b/public/assets/dist/map.css.map
new file mode 100644
index 0000000000000000000000000000000000000000..f73c9cba471e210b3e390d89761ab16cbeb9ed48
--- /dev/null
+++ b/public/assets/dist/map.css.map
@@ -0,0 +1 @@
+{"version":3,"sources":["../../../node_modules/ol/ol.css"],"names":[],"mappings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file":"map.css","sourceRoot":"../js","sourcesContent":[".ol-box {\n box-sizing: border-box;\n border-radius: 2px;\n border: 2px solid blue;\n}\n\n.ol-mouse-position {\n top: 8px;\n right: 8px;\n position: absolute;\n}\n\n.ol-scale-line {\n background: rgba(0,60,136,0.3);\n border-radius: 4px;\n bottom: 8px;\n left: 8px;\n padding: 2px;\n position: absolute;\n}\n.ol-scale-line-inner {\n border: 1px solid #eee;\n border-top: none;\n color: #eee;\n font-size: 10px;\n text-align: center;\n margin: 1px;\n will-change: contents, width;\n transition: all 0.25s;\n}\n.ol-scale-bar {\n position: absolute;\n bottom: 8px;\n left: 8px;\n}\n.ol-scale-step-marker {\n width: 1px;\n height: 15px;\n background-color: #000000;\n float: right;\n z-Index: 10;\n}\n.ol-scale-step-text {\n position: absolute;\n bottom: -5px;\n font-size: 12px;\n z-Index: 11;\n color: #000000;\n text-shadow: -2px 0 #FFFFFF, 0 2px #FFFFFF, 2px 0 #FFFFFF, 0 -2px #FFFFFF;\n}\n.ol-scale-text {\n position: absolute;\n font-size: 14px;\n text-align: center;\n bottom: 25px;\n color: #000000;\n text-shadow: -2px 0 #FFFFFF, 0 2px #FFFFFF, 2px 0 #FFFFFF, 0 -2px #FFFFFF;\n}\n.ol-scale-singlebar {\n position: relative;\n height: 10px;\n z-Index: 9;\n box-sizing: border-box;\n border: 1px solid black;\n}\n\n.ol-unsupported {\n display: none;\n}\n.ol-viewport, .ol-unselectable {\n -webkit-touch-callout: none;\n -webkit-user-select: none;\n -moz-user-select: none;\n -ms-user-select: none;\n user-select: none;\n -webkit-tap-highlight-color: rgba(0,0,0,0);\n}\n.ol-selectable {\n -webkit-touch-callout: default;\n -webkit-user-select: text;\n -moz-user-select: text;\n -ms-user-select: text;\n user-select: text;\n}\n.ol-grabbing {\n cursor: -webkit-grabbing;\n cursor: -moz-grabbing;\n cursor: grabbing;\n}\n.ol-grab {\n cursor: move;\n cursor: -webkit-grab;\n cursor: -moz-grab;\n cursor: grab;\n}\n.ol-control {\n position: absolute;\n background-color: rgba(255,255,255,0.4);\n border-radius: 4px;\n padding: 2px;\n}\n.ol-control:hover {\n background-color: rgba(255,255,255,0.6);\n}\n.ol-zoom {\n top: .5em;\n left: .5em;\n}\n.ol-rotate {\n top: .5em;\n right: .5em;\n transition: opacity .25s linear, visibility 0s linear;\n}\n.ol-rotate.ol-hidden {\n opacity: 0;\n visibility: hidden;\n transition: opacity .25s linear, visibility 0s linear .25s;\n}\n.ol-zoom-extent {\n top: 4.643em;\n left: .5em;\n}\n.ol-full-screen {\n right: .5em;\n top: .5em;\n}\n\n.ol-control button {\n display: block;\n margin: 1px;\n padding: 0;\n color: white;\n font-size: 1.14em;\n font-weight: bold;\n text-decoration: none;\n text-align: center;\n height: 1.375em;\n width: 1.375em;\n line-height: .4em;\n background-color: rgba(0,60,136,0.5);\n border: none;\n border-radius: 2px;\n}\n.ol-control button::-moz-focus-inner {\n border: none;\n padding: 0;\n}\n.ol-zoom-extent button {\n line-height: 1.4em;\n}\n.ol-compass {\n display: block;\n font-weight: normal;\n font-size: 1.2em;\n will-change: transform;\n}\n.ol-touch .ol-control button {\n font-size: 1.5em;\n}\n.ol-touch .ol-zoom-extent {\n top: 5.5em;\n}\n.ol-control button:hover,\n.ol-control button:focus {\n text-decoration: none;\n background-color: rgba(0,60,136,0.7);\n}\n.ol-zoom .ol-zoom-in {\n border-radius: 2px 2px 0 0;\n}\n.ol-zoom .ol-zoom-out {\n border-radius: 0 0 2px 2px;\n}\n\n\n.ol-attribution {\n text-align: right;\n bottom: .5em;\n right: .5em;\n max-width: calc(100% - 1.3em);\n}\n\n.ol-attribution ul {\n margin: 0;\n padding: 0 .5em;\n color: #000;\n text-shadow: 0 0 2px #fff;\n}\n.ol-attribution li {\n display: inline;\n list-style: none;\n}\n.ol-attribution li:not(:last-child):after {\n content: \" \";\n}\n.ol-attribution img {\n max-height: 2em;\n max-width: inherit;\n vertical-align: middle;\n}\n.ol-attribution ul, .ol-attribution button {\n display: inline-block;\n}\n.ol-attribution.ol-collapsed ul {\n display: none;\n}\n.ol-attribution:not(.ol-collapsed) {\n background: rgba(255,255,255,0.8);\n}\n.ol-attribution.ol-uncollapsible {\n bottom: 0;\n right: 0;\n border-radius: 4px 0 0;\n}\n.ol-attribution.ol-uncollapsible img {\n margin-top: -.2em;\n max-height: 1.6em;\n}\n.ol-attribution.ol-uncollapsible button {\n display: none;\n}\n\n.ol-zoomslider {\n top: 4.5em;\n left: .5em;\n height: 200px;\n}\n.ol-zoomslider button {\n position: relative;\n height: 10px;\n}\n\n.ol-touch .ol-zoomslider {\n top: 5.5em;\n}\n\n.ol-overviewmap {\n left: 0.5em;\n bottom: 0.5em;\n}\n.ol-overviewmap.ol-uncollapsible {\n bottom: 0;\n left: 0;\n border-radius: 0 4px 0 0;\n}\n.ol-overviewmap .ol-overviewmap-map,\n.ol-overviewmap button {\n display: inline-block;\n}\n.ol-overviewmap .ol-overviewmap-map {\n border: 1px solid #7b98bc;\n height: 150px;\n margin: 2px;\n width: 150px;\n}\n.ol-overviewmap:not(.ol-collapsed) button{\n bottom: 1px;\n left: 2px;\n position: absolute;\n}\n.ol-overviewmap.ol-collapsed .ol-overviewmap-map,\n.ol-overviewmap.ol-uncollapsible button {\n display: none;\n}\n.ol-overviewmap:not(.ol-collapsed) {\n background: rgba(255,255,255,0.8);\n}\n.ol-overviewmap-box {\n border: 2px dotted rgba(0,60,136,0.7);\n}\n\n.ol-overviewmap .ol-overviewmap-box:hover {\n cursor: move;\n}\n"]}
\ No newline at end of file
diff --git a/public/assets/dist/map.js b/public/assets/dist/map.js
new file mode 100644
index 0000000000000000000000000000000000000000..b23136941ec4598a25d674e656030af3c504ae31
--- /dev/null
+++ b/public/assets/dist/map.js
@@ -0,0 +1,57025 @@
+// modules are defined as an array
+// [ module function, map of requires ]
+//
+// map of requires is short require name -> numeric require
+//
+// anything defined in a previous bundle is accessed via the
+// orig method which is the require for previous bundles
+parcelRequire = (function (modules, cache, entry, globalName) {
+ // Save the require from previous bundle to this closure if any
+ var previousRequire = typeof parcelRequire === 'function' && parcelRequire;
+ var nodeRequire = typeof require === 'function' && require;
+
+ function newRequire(name, jumped) {
+ if (!cache[name]) {
+ if (!modules[name]) {
+ // if we cannot find the module within our internal map or
+ // cache jump to the current global require ie. the last bundle
+ // that was added to the page.
+ var currentRequire = typeof parcelRequire === 'function' && parcelRequire;
+ if (!jumped && currentRequire) {
+ return currentRequire(name, true);
+ }
+
+ // If there are other bundles on this page the require from the
+ // previous one is saved to 'previousRequire'. Repeat this as
+ // many times as there are bundles until the module is found or
+ // we exhaust the require chain.
+ if (previousRequire) {
+ return previousRequire(name, true);
+ }
+
+ // Try the node require function if it exists.
+ if (nodeRequire && typeof name === 'string') {
+ return nodeRequire(name);
+ }
+
+ var err = new Error('Cannot find module \'' + name + '\'');
+ err.code = 'MODULE_NOT_FOUND';
+ throw err;
+ }
+
+ localRequire.resolve = resolve;
+ localRequire.cache = {};
+
+ var module = cache[name] = new newRequire.Module(name);
+
+ modules[name][0].call(module.exports, localRequire, module, module.exports, this);
+ }
+
+ return cache[name].exports;
+
+ function localRequire(x){
+ return newRequire(localRequire.resolve(x));
+ }
+
+ function resolve(x){
+ return modules[name][1][x] || x;
+ }
+ }
+
+ function Module(moduleName) {
+ this.id = moduleName;
+ this.bundle = newRequire;
+ this.exports = {};
+ }
+
+ newRequire.isParcelRequire = true;
+ newRequire.Module = Module;
+ newRequire.modules = modules;
+ newRequire.cache = cache;
+ newRequire.parent = previousRequire;
+ newRequire.register = function (id, exports) {
+ modules[id] = [function (require, module) {
+ module.exports = exports;
+ }, {}];
+ };
+
+ var error;
+ for (var i = 0; i < entry.length; i++) {
+ try {
+ newRequire(entry[i]);
+ } catch (e) {
+ // Save first error but execute all entries
+ if (!error) {
+ error = e;
+ }
+ }
+ }
+
+ if (entry.length) {
+ // Expose entry point to Node, AMD or browser globals
+ // Based on https://github.com/ForbesLindesay/umd/blob/master/template.js
+ var mainExports = newRequire(entry[entry.length - 1]);
+
+ // CommonJS
+ if (typeof exports === "object" && typeof module !== "undefined") {
+ module.exports = mainExports;
+
+ // RequireJS
+ } else if (typeof define === "function" && define.amd) {
+ define(function () {
+ return mainExports;
+ });
+
+ // <script>
+ } else if (globalName) {
+ this[globalName] = mainExports;
+ }
+ }
+
+ // Override the current require with this new one
+ parcelRequire = newRequire;
+
+ if (error) {
+ // throw error from earlier, _after updating parcelRequire_
+ throw error;
+ }
+
+ return newRequire;
+})({"../../../node_modules/parcel-bundler/src/builtins/bundle-url.js":[function(require,module,exports) {
+var bundleURL = null;
+
+function getBundleURLCached() {
+ if (!bundleURL) {
+ bundleURL = getBundleURL();
+ }
+
+ return bundleURL;
+}
+
+function getBundleURL() {
+ // Attempt to find the URL of the current script and use that as the base URL
+ try {
+ throw new Error();
+ } catch (err) {
+ var matches = ('' + err.stack).match(/(https?|file|ftp|chrome-extension|moz-extension):\/\/[^)\n]+/g);
+
+ if (matches) {
+ return getBaseURL(matches[0]);
+ }
+ }
+
+ return '/';
+}
+
+function getBaseURL(url) {
+ return ('' + url).replace(/^((?:https?|file|ftp|chrome-extension|moz-extension):\/\/.+)\/[^/]+$/, '$1') + '/';
+}
+
+exports.getBundleURL = getBundleURLCached;
+exports.getBaseURL = getBaseURL;
+},{}],"../../../node_modules/parcel-bundler/src/builtins/css-loader.js":[function(require,module,exports) {
+var bundle = require('./bundle-url');
+
+function updateLink(link) {
+ var newLink = link.cloneNode();
+
+ newLink.onload = function () {
+ link.remove();
+ };
+
+ newLink.href = link.href.split('?')[0] + '?' + Date.now();
+ link.parentNode.insertBefore(newLink, link.nextSibling);
+}
+
+var cssTimeout = null;
+
+function reloadCSS() {
+ if (cssTimeout) {
+ return;
+ }
+
+ cssTimeout = setTimeout(function () {
+ var links = document.querySelectorAll('link[rel="stylesheet"]');
+
+ for (var i = 0; i < links.length; i++) {
+ if (bundle.getBaseURL(links[i].href) === bundle.getBundleURL()) {
+ updateLink(links[i]);
+ }
+ }
+
+ cssTimeout = null;
+ }, 50);
+}
+
+module.exports = reloadCSS;
+},{"./bundle-url":"../../../node_modules/parcel-bundler/src/builtins/bundle-url.js"}],"../../../node_modules/ol/ol.css":[function(require,module,exports) {
+
+ var reloadCSS = require('_css_loader');
+ module.hot.dispose(reloadCSS);
+ module.hot.accept(reloadCSS);
+
+},{"_css_loader":"../../../node_modules/parcel-bundler/src/builtins/css-loader.js"}],"../../../node_modules/ol/util.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.abstract = abstract;
+exports.getUid = getUid;
+exports.VERSION = void 0;
+
+/**
+ * @module ol/util
+ */
+
+/**
+ * @return {?} Any return.
+ */
+function abstract() {
+ return (
+ /** @type {?} */
+ function () {
+ throw new Error('Unimplemented abstract method.');
+ }()
+ );
+}
+/**
+ * Counter for getUid.
+ * @type {number}
+ * @private
+ */
+
+
+var uidCounter_ = 0;
+/**
+ * Gets a unique ID for an object. This mutates the object so that further calls
+ * with the same object as a parameter returns the same value. Unique IDs are generated
+ * as a strictly increasing sequence. Adapted from goog.getUid.
+ *
+ * @param {Object} obj The object to get the unique ID for.
+ * @return {string} The unique ID for the object.
+ * @api
+ */
+
+function getUid(obj) {
+ return obj.ol_uid || (obj.ol_uid = String(++uidCounter_));
+}
+/**
+ * OpenLayers version.
+ * @type {string}
+ */
+
+
+var VERSION = '6.4.3';
+exports.VERSION = VERSION;
+},{}],"../../../node_modules/ol/AssertionError.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _util = require("./util.js");
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/AssertionError
+ */
+
+
+/**
+ * Error object thrown when an assertion failed. This is an ECMA-262 Error,
+ * extended with a `code` property.
+ * See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error.
+ */
+var AssertionError =
+/** @class */
+function (_super) {
+ __extends(AssertionError, _super);
+ /**
+ * @param {number} code Error code.
+ */
+
+
+ function AssertionError(code) {
+ var _this = this;
+
+ var path = _util.VERSION === 'latest' ? _util.VERSION : 'v' + _util.VERSION.split('-')[0];
+ var message = 'Assertion failed. See https://openlayers.org/en/' + path + '/doc/errors/#' + code + ' for details.';
+ _this = _super.call(this, message) || this;
+ /**
+ * Error code. The meaning of the code can be found on
+ * https://openlayers.org/en/latest/doc/errors/ (replace `latest` with
+ * the version found in the OpenLayers script's header comment if a version
+ * other than the latest is used).
+ * @type {number}
+ * @api
+ */
+
+ _this.code = code;
+ /**
+ * @type {string}
+ */
+
+ _this.name = 'AssertionError'; // Re-assign message, see https://github.com/Rich-Harris/buble/issues/40
+
+ _this.message = message;
+ return _this;
+ }
+
+ return AssertionError;
+}(Error);
+
+var _default = AssertionError;
+exports.default = _default;
+},{"./util.js":"../../../node_modules/ol/util.js"}],"../../../node_modules/ol/events/Event.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.stopPropagation = stopPropagation;
+exports.preventDefault = preventDefault;
+exports.default = void 0;
+
+/**
+ * @module ol/events/Event
+ */
+
+/**
+ * @classdesc
+ * Stripped down implementation of the W3C DOM Level 2 Event interface.
+ * See https://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-interface.
+ *
+ * This implementation only provides `type` and `target` properties, and
+ * `stopPropagation` and `preventDefault` methods. It is meant as base class
+ * for higher level events defined in the library, and works with
+ * {@link module:ol/events/Target~Target}.
+ */
+var BaseEvent =
+/** @class */
+function () {
+ /**
+ * @param {string} type Type.
+ */
+ function BaseEvent(type) {
+ /**
+ * @type {boolean}
+ */
+ this.propagationStopped;
+ /**
+ * The event type.
+ * @type {string}
+ * @api
+ */
+
+ this.type = type;
+ /**
+ * The event target.
+ * @type {Object}
+ * @api
+ */
+
+ this.target = null;
+ }
+ /**
+ * Stop event propagation.
+ * @api
+ */
+
+
+ BaseEvent.prototype.preventDefault = function () {
+ this.propagationStopped = true;
+ };
+ /**
+ * Stop event propagation.
+ * @api
+ */
+
+
+ BaseEvent.prototype.stopPropagation = function () {
+ this.propagationStopped = true;
+ };
+
+ return BaseEvent;
+}();
+/**
+ * @param {Event|import("./Event.js").default} evt Event
+ */
+
+
+function stopPropagation(evt) {
+ evt.stopPropagation();
+}
+/**
+ * @param {Event|import("./Event.js").default} evt Event
+ */
+
+
+function preventDefault(evt) {
+ evt.preventDefault();
+}
+
+var _default = BaseEvent;
+exports.default = _default;
+},{}],"../../../node_modules/ol/ObjectEventType.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+/**
+ * @module ol/ObjectEventType
+ */
+
+/**
+ * @enum {string}
+ */
+var _default = {
+ /**
+ * Triggered when a property is changed.
+ * @event module:ol/Object.ObjectEvent#propertychange
+ * @api
+ */
+ PROPERTYCHANGE: 'propertychange'
+};
+exports.default = _default;
+},{}],"../../../node_modules/ol/Disposable.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+/**
+ * @module ol/Disposable
+ */
+
+/**
+ * @classdesc
+ * Objects that need to clean up after themselves.
+ */
+var Disposable =
+/** @class */
+function () {
+ function Disposable() {
+ /**
+ * The object has already been disposed.
+ * @type {boolean}
+ * @protected
+ */
+ this.disposed = false;
+ }
+ /**
+ * Clean up.
+ */
+
+
+ Disposable.prototype.dispose = function () {
+ if (!this.disposed) {
+ this.disposed = true;
+ this.disposeInternal();
+ }
+ };
+ /**
+ * Extension point for disposable objects.
+ * @protected
+ */
+
+
+ Disposable.prototype.disposeInternal = function () {};
+
+ return Disposable;
+}();
+
+var _default = Disposable;
+exports.default = _default;
+},{}],"../../../node_modules/ol/array.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.binarySearch = binarySearch;
+exports.numberSafeCompareFunction = numberSafeCompareFunction;
+exports.includes = includes;
+exports.linearFindNearest = linearFindNearest;
+exports.reverseSubArray = reverseSubArray;
+exports.extend = extend;
+exports.remove = remove;
+exports.find = find;
+exports.equals = equals;
+exports.stableSort = stableSort;
+exports.findIndex = findIndex;
+exports.isSorted = isSorted;
+
+/**
+ * @module ol/array
+ */
+
+/**
+ * Performs a binary search on the provided sorted list and returns the index of the item if found. If it can't be found it'll return -1.
+ * https://github.com/darkskyapp/binary-search
+ *
+ * @param {Array<*>} haystack Items to search through.
+ * @param {*} needle The item to look for.
+ * @param {Function=} opt_comparator Comparator function.
+ * @return {number} The index of the item if found, -1 if not.
+ */
+function binarySearch(haystack, needle, opt_comparator) {
+ var mid, cmp;
+ var comparator = opt_comparator || numberSafeCompareFunction;
+ var low = 0;
+ var high = haystack.length;
+ var found = false;
+
+ while (low < high) {
+ /* Note that "(low + high) >>> 1" may overflow, and results in a typecast
+ * to double (which gives the wrong results). */
+ mid = low + (high - low >> 1);
+ cmp = +comparator(haystack[mid], needle);
+
+ if (cmp < 0.0) {
+ /* Too low. */
+ low = mid + 1;
+ } else {
+ /* Key found or too high */
+ high = mid;
+ found = !cmp;
+ }
+ }
+ /* Key not found. */
+
+
+ return found ? low : ~low;
+}
+/**
+ * Compare function for array sort that is safe for numbers.
+ * @param {*} a The first object to be compared.
+ * @param {*} b The second object to be compared.
+ * @return {number} A negative number, zero, or a positive number as the first
+ * argument is less than, equal to, or greater than the second.
+ */
+
+
+function numberSafeCompareFunction(a, b) {
+ return a > b ? 1 : a < b ? -1 : 0;
+}
+/**
+ * Whether the array contains the given object.
+ * @param {Array<*>} arr The array to test for the presence of the element.
+ * @param {*} obj The object for which to test.
+ * @return {boolean} The object is in the array.
+ */
+
+
+function includes(arr, obj) {
+ return arr.indexOf(obj) >= 0;
+}
+/**
+ * @param {Array<number>} arr Array.
+ * @param {number} target Target.
+ * @param {number} direction 0 means return the nearest, > 0
+ * means return the largest nearest, < 0 means return the
+ * smallest nearest.
+ * @return {number} Index.
+ */
+
+
+function linearFindNearest(arr, target, direction) {
+ var n = arr.length;
+
+ if (arr[0] <= target) {
+ return 0;
+ } else if (target <= arr[n - 1]) {
+ return n - 1;
+ } else {
+ var i = void 0;
+
+ if (direction > 0) {
+ for (i = 1; i < n; ++i) {
+ if (arr[i] < target) {
+ return i - 1;
+ }
+ }
+ } else if (direction < 0) {
+ for (i = 1; i < n; ++i) {
+ if (arr[i] <= target) {
+ return i;
+ }
+ }
+ } else {
+ for (i = 1; i < n; ++i) {
+ if (arr[i] == target) {
+ return i;
+ } else if (arr[i] < target) {
+ if (arr[i - 1] - target < target - arr[i]) {
+ return i - 1;
+ } else {
+ return i;
+ }
+ }
+ }
+ }
+
+ return n - 1;
+ }
+}
+/**
+ * @param {Array<*>} arr Array.
+ * @param {number} begin Begin index.
+ * @param {number} end End index.
+ */
+
+
+function reverseSubArray(arr, begin, end) {
+ while (begin < end) {
+ var tmp = arr[begin];
+ arr[begin] = arr[end];
+ arr[end] = tmp;
+ ++begin;
+ --end;
+ }
+}
+/**
+ * @param {Array<VALUE>} arr The array to modify.
+ * @param {!Array<VALUE>|VALUE} data The elements or arrays of elements to add to arr.
+ * @template VALUE
+ */
+
+
+function extend(arr, data) {
+ var extension = Array.isArray(data) ? data : [data];
+ var length = extension.length;
+
+ for (var i = 0; i < length; i++) {
+ arr[arr.length] = extension[i];
+ }
+}
+/**
+ * @param {Array<VALUE>} arr The array to modify.
+ * @param {VALUE} obj The element to remove.
+ * @template VALUE
+ * @return {boolean} If the element was removed.
+ */
+
+
+function remove(arr, obj) {
+ var i = arr.indexOf(obj);
+ var found = i > -1;
+
+ if (found) {
+ arr.splice(i, 1);
+ }
+
+ return found;
+}
+/**
+ * @param {Array<VALUE>} arr The array to search in.
+ * @param {function(VALUE, number, ?) : boolean} func The function to compare.
+ * @template VALUE
+ * @return {VALUE|null} The element found or null.
+ */
+
+
+function find(arr, func) {
+ var length = arr.length >>> 0;
+ var value;
+
+ for (var i = 0; i < length; i++) {
+ value = arr[i];
+
+ if (func(value, i, arr)) {
+ return value;
+ }
+ }
+
+ return null;
+}
+/**
+ * @param {Array|Uint8ClampedArray} arr1 The first array to compare.
+ * @param {Array|Uint8ClampedArray} arr2 The second array to compare.
+ * @return {boolean} Whether the two arrays are equal.
+ */
+
+
+function equals(arr1, arr2) {
+ var len1 = arr1.length;
+
+ if (len1 !== arr2.length) {
+ return false;
+ }
+
+ for (var i = 0; i < len1; i++) {
+ if (arr1[i] !== arr2[i]) {
+ return false;
+ }
+ }
+
+ return true;
+}
+/**
+ * Sort the passed array such that the relative order of equal elements is preverved.
+ * See https://en.wikipedia.org/wiki/Sorting_algorithm#Stability for details.
+ * @param {Array<*>} arr The array to sort (modifies original).
+ * @param {!function(*, *): number} compareFnc Comparison function.
+ * @api
+ */
+
+
+function stableSort(arr, compareFnc) {
+ var length = arr.length;
+ var tmp = Array(arr.length);
+ var i;
+
+ for (i = 0; i < length; i++) {
+ tmp[i] = {
+ index: i,
+ value: arr[i]
+ };
+ }
+
+ tmp.sort(function (a, b) {
+ return compareFnc(a.value, b.value) || a.index - b.index;
+ });
+
+ for (i = 0; i < arr.length; i++) {
+ arr[i] = tmp[i].value;
+ }
+}
+/**
+ * @param {Array<*>} arr The array to search in.
+ * @param {Function} func Comparison function.
+ * @return {number} Return index.
+ */
+
+
+function findIndex(arr, func) {
+ var index;
+ var found = !arr.every(function (el, idx) {
+ index = idx;
+ return !func(el, idx, arr);
+ });
+ return found ? index : -1;
+}
+/**
+ * @param {Array<*>} arr The array to test.
+ * @param {Function=} opt_func Comparison function.
+ * @param {boolean=} opt_strict Strictly sorted (default false).
+ * @return {boolean} Return index.
+ */
+
+
+function isSorted(arr, opt_func, opt_strict) {
+ var compare = opt_func || numberSafeCompareFunction;
+ return arr.every(function (currentVal, index) {
+ if (index === 0) {
+ return true;
+ }
+
+ var res = compare(arr[index - 1], currentVal);
+ return !(res > 0 || opt_strict && res === 0);
+ });
+}
+},{}],"../../../node_modules/ol/functions.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.TRUE = TRUE;
+exports.FALSE = FALSE;
+exports.VOID = VOID;
+exports.memoizeOne = memoizeOne;
+
+var _array = require("./array.js");
+
+/**
+ * @module ol/functions
+ */
+
+/**
+ * Always returns true.
+ * @returns {boolean} true.
+ */
+function TRUE() {
+ return true;
+}
+/**
+ * Always returns false.
+ * @returns {boolean} false.
+ */
+
+
+function FALSE() {
+ return false;
+}
+/**
+ * A reusable function, used e.g. as a default for callbacks.
+ *
+ * @return {void} Nothing.
+ */
+
+
+function VOID() {}
+/**
+ * Wrap a function in another function that remembers the last return. If the
+ * returned function is called twice in a row with the same arguments and the same
+ * this object, it will return the value from the first call in the second call.
+ *
+ * @param {function(...any): ReturnType} fn The function to memoize.
+ * @return {function(...any): ReturnType} The memoized function.
+ * @template ReturnType
+ */
+
+
+function memoizeOne(fn) {
+ var called = false;
+ /** @type {ReturnType} */
+
+ var lastResult;
+ /** @type {Array<any>} */
+
+ var lastArgs;
+ var lastThis;
+ return function () {
+ var nextArgs = Array.prototype.slice.call(arguments);
+
+ if (!called || this !== lastThis || !(0, _array.equals)(nextArgs, lastArgs)) {
+ called = true;
+ lastThis = this;
+ lastArgs = nextArgs;
+ lastResult = fn.apply(this, arguments);
+ }
+
+ return lastResult;
+ };
+}
+},{"./array.js":"../../../node_modules/ol/array.js"}],"../../../node_modules/ol/obj.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.clear = clear;
+exports.isEmpty = isEmpty;
+exports.getValues = exports.assign = void 0;
+
+/**
+ * @module ol/obj
+ */
+
+/**
+ * Polyfill for Object.assign(). Assigns enumerable and own properties from
+ * one or more source objects to a target object.
+ * See https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Object/assign.
+ *
+ * @param {!Object} target The target object.
+ * @param {...Object} var_sources The source object(s).
+ * @return {!Object} The modified target object.
+ */
+var assign = typeof Object.assign === 'function' ? Object.assign : function (target, var_sources) {
+ if (target === undefined || target === null) {
+ throw new TypeError('Cannot convert undefined or null to object');
+ }
+
+ var output = Object(target);
+
+ for (var i = 1, ii = arguments.length; i < ii; ++i) {
+ var source = arguments[i];
+
+ if (source !== undefined && source !== null) {
+ for (var key in source) {
+ if (source.hasOwnProperty(key)) {
+ output[key] = source[key];
+ }
+ }
+ }
+ }
+
+ return output;
+};
+/**
+ * Removes all properties from an object.
+ * @param {Object} object The object to clear.
+ */
+
+exports.assign = assign;
+
+function clear(object) {
+ for (var property in object) {
+ delete object[property];
+ }
+}
+/**
+ * Polyfill for Object.values(). Get an array of property values from an object.
+ * See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/values
+ *
+ * @param {!Object<K,V>} object The object from which to get the values.
+ * @return {!Array<V>} The property values.
+ * @template K,V
+ */
+
+
+var getValues = typeof Object.values === 'function' ? Object.values : function (object) {
+ var values = [];
+
+ for (var property in object) {
+ values.push(object[property]);
+ }
+
+ return values;
+};
+/**
+ * Determine if an object has any properties.
+ * @param {Object} object The object to check.
+ * @return {boolean} The object is empty.
+ */
+
+exports.getValues = getValues;
+
+function isEmpty(object) {
+ var property;
+
+ for (property in object) {
+ return false;
+ }
+
+ return !property;
+}
+},{}],"../../../node_modules/ol/events/Target.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Disposable = _interopRequireDefault(require("../Disposable.js"));
+
+var _Event = _interopRequireDefault(require("./Event.js"));
+
+var _functions = require("../functions.js");
+
+var _obj = require("../obj.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/events/Target
+ */
+
+
+/**
+ * @typedef {EventTarget|Target} EventTargetLike
+ */
+
+/**
+ * @classdesc
+ * A simplified implementation of the W3C DOM Level 2 EventTarget interface.
+ * See https://www.w3.org/TR/2000/REC-DOM-Level-2-Events-20001113/events.html#Events-EventTarget.
+ *
+ * There are two important simplifications compared to the specification:
+ *
+ * 1. The handling of `useCapture` in `addEventListener` and
+ * `removeEventListener`. There is no real capture model.
+ * 2. The handling of `stopPropagation` and `preventDefault` on `dispatchEvent`.
+ * There is no event target hierarchy. When a listener calls
+ * `stopPropagation` or `preventDefault` on an event object, it means that no
+ * more listeners after this one will be called. Same as when the listener
+ * returns false.
+ */
+var Target =
+/** @class */
+function (_super) {
+ __extends(Target, _super);
+ /**
+ * @param {*=} opt_target Default event target for dispatched events.
+ */
+
+
+ function Target(opt_target) {
+ var _this = _super.call(this) || this;
+ /**
+ * @private
+ * @type {*}
+ */
+
+
+ _this.eventTarget_ = opt_target;
+ /**
+ * @private
+ * @type {Object<string, number>}
+ */
+
+ _this.pendingRemovals_ = null;
+ /**
+ * @private
+ * @type {Object<string, number>}
+ */
+
+ _this.dispatching_ = null;
+ /**
+ * @private
+ * @type {Object<string, Array<import("../events.js").Listener>>}
+ */
+
+ _this.listeners_ = null;
+ return _this;
+ }
+ /**
+ * @param {string} type Type.
+ * @param {import("../events.js").Listener} listener Listener.
+ */
+
+
+ Target.prototype.addEventListener = function (type, listener) {
+ if (!type || !listener) {
+ return;
+ }
+
+ var listeners = this.listeners_ || (this.listeners_ = {});
+ var listenersForType = listeners[type] || (listeners[type] = []);
+
+ if (listenersForType.indexOf(listener) === -1) {
+ listenersForType.push(listener);
+ }
+ };
+ /**
+ * Dispatches an event and calls all listeners listening for events
+ * of this type. The event parameter can either be a string or an
+ * Object with a `type` property.
+ *
+ * @param {import("./Event.js").default|string} event Event object.
+ * @return {boolean|undefined} `false` if anyone called preventDefault on the
+ * event object or if any of the listeners returned false.
+ * @api
+ */
+
+
+ Target.prototype.dispatchEvent = function (event) {
+ /** @type {import("./Event.js").default|Event} */
+ var evt = typeof event === 'string' ? new _Event.default(event) : event;
+ var type = evt.type;
+
+ if (!evt.target) {
+ evt.target = this.eventTarget_ || this;
+ }
+
+ var listeners = this.listeners_ && this.listeners_[type];
+ var propagate;
+
+ if (listeners) {
+ var dispatching = this.dispatching_ || (this.dispatching_ = {});
+ var pendingRemovals = this.pendingRemovals_ || (this.pendingRemovals_ = {});
+
+ if (!(type in dispatching)) {
+ dispatching[type] = 0;
+ pendingRemovals[type] = 0;
+ }
+
+ ++dispatching[type];
+
+ for (var i = 0, ii = listeners.length; i < ii; ++i) {
+ if ('handleEvent' in listeners[i]) {
+ propagate =
+ /** @type {import("../events.js").ListenerObject} */
+ listeners[i].handleEvent(evt);
+ } else {
+ propagate =
+ /** @type {import("../events.js").ListenerFunction} */
+ listeners[i].call(this, evt);
+ }
+
+ if (propagate === false || evt.propagationStopped) {
+ propagate = false;
+ break;
+ }
+ }
+
+ --dispatching[type];
+
+ if (dispatching[type] === 0) {
+ var pr = pendingRemovals[type];
+ delete pendingRemovals[type];
+
+ while (pr--) {
+ this.removeEventListener(type, _functions.VOID);
+ }
+
+ delete dispatching[type];
+ }
+
+ return propagate;
+ }
+ };
+ /**
+ * Clean up.
+ */
+
+
+ Target.prototype.disposeInternal = function () {
+ this.listeners_ && (0, _obj.clear)(this.listeners_);
+ };
+ /**
+ * Get the listeners for a specified event type. Listeners are returned in the
+ * order that they will be called in.
+ *
+ * @param {string} type Type.
+ * @return {Array<import("../events.js").Listener>|undefined} Listeners.
+ */
+
+
+ Target.prototype.getListeners = function (type) {
+ return this.listeners_ && this.listeners_[type] || undefined;
+ };
+ /**
+ * @param {string=} opt_type Type. If not provided,
+ * `true` will be returned if this event target has any listeners.
+ * @return {boolean} Has listeners.
+ */
+
+
+ Target.prototype.hasListener = function (opt_type) {
+ if (!this.listeners_) {
+ return false;
+ }
+
+ return opt_type ? opt_type in this.listeners_ : Object.keys(this.listeners_).length > 0;
+ };
+ /**
+ * @param {string} type Type.
+ * @param {import("../events.js").Listener} listener Listener.
+ */
+
+
+ Target.prototype.removeEventListener = function (type, listener) {
+ var listeners = this.listeners_ && this.listeners_[type];
+
+ if (listeners) {
+ var index = listeners.indexOf(listener);
+
+ if (index !== -1) {
+ if (this.pendingRemovals_ && type in this.pendingRemovals_) {
+ // make listener a no-op, and remove later in #dispatchEvent()
+ listeners[index] = _functions.VOID;
+ ++this.pendingRemovals_[type];
+ } else {
+ listeners.splice(index, 1);
+
+ if (listeners.length === 0) {
+ delete this.listeners_[type];
+ }
+ }
+ }
+ }
+ };
+
+ return Target;
+}(_Disposable.default);
+
+var _default = Target;
+exports.default = _default;
+},{"../Disposable.js":"../../../node_modules/ol/Disposable.js","./Event.js":"../../../node_modules/ol/events/Event.js","../functions.js":"../../../node_modules/ol/functions.js","../obj.js":"../../../node_modules/ol/obj.js"}],"../../../node_modules/ol/events/EventType.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+/**
+ * @module ol/events/EventType
+ */
+
+/**
+ * @enum {string}
+ * @const
+ */
+var _default = {
+ /**
+ * Generic change event. Triggered when the revision counter is increased.
+ * @event module:ol/events/Event~BaseEvent#change
+ * @api
+ */
+ CHANGE: 'change',
+
+ /**
+ * Generic error event. Triggered when an error occurs.
+ * @event module:ol/events/Event~BaseEvent#error
+ * @api
+ */
+ ERROR: 'error',
+ BLUR: 'blur',
+ CLEAR: 'clear',
+ CONTEXTMENU: 'contextmenu',
+ CLICK: 'click',
+ DBLCLICK: 'dblclick',
+ DRAGENTER: 'dragenter',
+ DRAGOVER: 'dragover',
+ DROP: 'drop',
+ FOCUS: 'focus',
+ KEYDOWN: 'keydown',
+ KEYPRESS: 'keypress',
+ LOAD: 'load',
+ RESIZE: 'resize',
+ TOUCHMOVE: 'touchmove',
+ WHEEL: 'wheel'
+};
+exports.default = _default;
+},{}],"../../../node_modules/ol/events.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.listen = listen;
+exports.listenOnce = listenOnce;
+exports.unlistenByKey = unlistenByKey;
+
+var _obj = require("./obj.js");
+
+/**
+ * @module ol/events
+ */
+
+/**
+ * Key to use with {@link module:ol/Observable~Observable#unByKey}.
+ * @typedef {Object} EventsKey
+ * @property {ListenerFunction} listener
+ * @property {import("./events/Target.js").EventTargetLike} target
+ * @property {string} type
+ * @api
+ */
+
+/**
+ * Listener function. This function is called with an event object as argument.
+ * When the function returns `false`, event propagation will stop.
+ *
+ * @typedef {function((Event|import("./events/Event.js").default)): (void|boolean)} ListenerFunction
+ * @api
+ */
+
+/**
+ * @typedef {Object} ListenerObject
+ * @property {ListenerFunction} handleEvent
+ */
+
+/**
+ * @typedef {ListenerFunction|ListenerObject} Listener
+ */
+
+/**
+ * Registers an event listener on an event target. Inspired by
+ * https://google.github.io/closure-library/api/source/closure/goog/events/events.js.src.html
+ *
+ * This function efficiently binds a `listener` to a `this` object, and returns
+ * a key for use with {@link module:ol/events~unlistenByKey}.
+ *
+ * @param {import("./events/Target.js").EventTargetLike} target Event target.
+ * @param {string} type Event type.
+ * @param {ListenerFunction} listener Listener.
+ * @param {Object=} opt_this Object referenced by the `this` keyword in the
+ * listener. Default is the `target`.
+ * @param {boolean=} opt_once If true, add the listener as one-off listener.
+ * @return {EventsKey} Unique key for the listener.
+ */
+function listen(target, type, listener, opt_this, opt_once) {
+ if (opt_this && opt_this !== target) {
+ listener = listener.bind(opt_this);
+ }
+
+ if (opt_once) {
+ var originalListener_1 = listener;
+
+ listener = function () {
+ target.removeEventListener(type, listener);
+ originalListener_1.apply(this, arguments);
+ };
+ }
+
+ var eventsKey = {
+ target: target,
+ type: type,
+ listener: listener
+ };
+ target.addEventListener(type, listener);
+ return eventsKey;
+}
+/**
+ * Registers a one-off event listener on an event target. Inspired by
+ * https://google.github.io/closure-library/api/source/closure/goog/events/events.js.src.html
+ *
+ * This function efficiently binds a `listener` as self-unregistering listener
+ * to a `this` object, and returns a key for use with
+ * {@link module:ol/events~unlistenByKey} in case the listener needs to be
+ * unregistered before it is called.
+ *
+ * When {@link module:ol/events~listen} is called with the same arguments after this
+ * function, the self-unregistering listener will be turned into a permanent
+ * listener.
+ *
+ * @param {import("./events/Target.js").EventTargetLike} target Event target.
+ * @param {string} type Event type.
+ * @param {ListenerFunction} listener Listener.
+ * @param {Object=} opt_this Object referenced by the `this` keyword in the
+ * listener. Default is the `target`.
+ * @return {EventsKey} Key for unlistenByKey.
+ */
+
+
+function listenOnce(target, type, listener, opt_this) {
+ return listen(target, type, listener, opt_this, true);
+}
+/**
+ * Unregisters event listeners on an event target. Inspired by
+ * https://google.github.io/closure-library/api/source/closure/goog/events/events.js.src.html
+ *
+ * The argument passed to this function is the key returned from
+ * {@link module:ol/events~listen} or {@link module:ol/events~listenOnce}.
+ *
+ * @param {EventsKey} key The key.
+ */
+
+
+function unlistenByKey(key) {
+ if (key && key.target) {
+ key.target.removeEventListener(key.type, key.listener);
+ (0, _obj.clear)(key);
+ }
+}
+},{"./obj.js":"../../../node_modules/ol/obj.js"}],"../../../node_modules/ol/Observable.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.unByKey = unByKey;
+exports.default = void 0;
+
+var _Target = _interopRequireDefault(require("./events/Target.js"));
+
+var _EventType = _interopRequireDefault(require("./events/EventType.js"));
+
+var _events = require("./events.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/Observable
+ */
+
+
+/**
+ * @classdesc
+ * Abstract base class; normally only used for creating subclasses and not
+ * instantiated in apps.
+ * An event target providing convenient methods for listener registration
+ * and unregistration. A generic `change` event is always available through
+ * {@link module:ol/Observable~Observable#changed}.
+ *
+ * @fires import("./events/Event.js").default
+ * @api
+ */
+var Observable =
+/** @class */
+function (_super) {
+ __extends(Observable, _super);
+
+ function Observable() {
+ var _this = _super.call(this) || this;
+ /**
+ * @private
+ * @type {number}
+ */
+
+
+ _this.revision_ = 0;
+ return _this;
+ }
+ /**
+ * Increases the revision counter and dispatches a 'change' event.
+ * @api
+ */
+
+
+ Observable.prototype.changed = function () {
+ ++this.revision_;
+ this.dispatchEvent(_EventType.default.CHANGE);
+ };
+ /**
+ * Get the version number for this object. Each time the object is modified,
+ * its version number will be incremented.
+ * @return {number} Revision.
+ * @api
+ */
+
+
+ Observable.prototype.getRevision = function () {
+ return this.revision_;
+ };
+ /**
+ * Listen for a certain type of event.
+ * @param {string|Array<string>} type The event type or array of event types.
+ * @param {function(?): ?} listener The listener function.
+ * @return {import("./events.js").EventsKey|Array<import("./events.js").EventsKey>} Unique key for the listener. If
+ * called with an array of event types as the first argument, the return
+ * will be an array of keys.
+ * @api
+ */
+
+
+ Observable.prototype.on = function (type, listener) {
+ if (Array.isArray(type)) {
+ var len = type.length;
+ var keys = new Array(len);
+
+ for (var i = 0; i < len; ++i) {
+ keys[i] = (0, _events.listen)(this, type[i], listener);
+ }
+
+ return keys;
+ } else {
+ return (0, _events.listen)(this,
+ /** @type {string} */
+ type, listener);
+ }
+ };
+ /**
+ * Listen once for a certain type of event.
+ * @param {string|Array<string>} type The event type or array of event types.
+ * @param {function(?): ?} listener The listener function.
+ * @return {import("./events.js").EventsKey|Array<import("./events.js").EventsKey>} Unique key for the listener. If
+ * called with an array of event types as the first argument, the return
+ * will be an array of keys.
+ * @api
+ */
+
+
+ Observable.prototype.once = function (type, listener) {
+ var key;
+
+ if (Array.isArray(type)) {
+ var len = type.length;
+ key = new Array(len);
+
+ for (var i = 0; i < len; ++i) {
+ key[i] = (0, _events.listenOnce)(this, type[i], listener);
+ }
+ } else {
+ key = (0, _events.listenOnce)(this,
+ /** @type {string} */
+ type, listener);
+ }
+ /** @type {Object} */
+
+
+ listener.ol_key = key;
+ return key;
+ };
+ /**
+ * Unlisten for a certain type of event.
+ * @param {string|Array<string>} type The event type or array of event types.
+ * @param {function(?): ?} listener The listener function.
+ * @api
+ */
+
+
+ Observable.prototype.un = function (type, listener) {
+ var key =
+ /** @type {Object} */
+ listener.ol_key;
+
+ if (key) {
+ unByKey(key);
+ } else if (Array.isArray(type)) {
+ for (var i = 0, ii = type.length; i < ii; ++i) {
+ this.removeEventListener(type[i], listener);
+ }
+ } else {
+ this.removeEventListener(type, listener);
+ }
+ };
+
+ return Observable;
+}(_Target.default);
+/**
+ * Removes an event listener using the key returned by `on()` or `once()`.
+ * @param {import("./events.js").EventsKey|Array<import("./events.js").EventsKey>} key The key returned by `on()`
+ * or `once()` (or an array of keys).
+ * @api
+ */
+
+
+function unByKey(key) {
+ if (Array.isArray(key)) {
+ for (var i = 0, ii = key.length; i < ii; ++i) {
+ (0, _events.unlistenByKey)(key[i]);
+ }
+ } else {
+ (0, _events.unlistenByKey)(
+ /** @type {import("./events.js").EventsKey} */
+ key);
+ }
+}
+
+var _default = Observable;
+exports.default = _default;
+},{"./events/Target.js":"../../../node_modules/ol/events/Target.js","./events/EventType.js":"../../../node_modules/ol/events/EventType.js","./events.js":"../../../node_modules/ol/events.js"}],"../../../node_modules/ol/Object.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.getChangeEventType = getChangeEventType;
+exports.default = exports.ObjectEvent = void 0;
+
+var _Event = _interopRequireDefault(require("./events/Event.js"));
+
+var _ObjectEventType = _interopRequireDefault(require("./ObjectEventType.js"));
+
+var _Observable = _interopRequireDefault(require("./Observable.js"));
+
+var _obj = require("./obj.js");
+
+var _util = require("./util.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/Object
+ */
+
+
+/**
+ * @classdesc
+ * Events emitted by {@link module:ol/Object~BaseObject} instances are instances of this type.
+ */
+var ObjectEvent =
+/** @class */
+function (_super) {
+ __extends(ObjectEvent, _super);
+ /**
+ * @param {string} type The event type.
+ * @param {string} key The property name.
+ * @param {*} oldValue The old value for `key`.
+ */
+
+
+ function ObjectEvent(type, key, oldValue) {
+ var _this = _super.call(this, type) || this;
+ /**
+ * The name of the property whose value is changing.
+ * @type {string}
+ * @api
+ */
+
+
+ _this.key = key;
+ /**
+ * The old value. To get the new value use `e.target.get(e.key)` where
+ * `e` is the event object.
+ * @type {*}
+ * @api
+ */
+
+ _this.oldValue = oldValue;
+ return _this;
+ }
+
+ return ObjectEvent;
+}(_Event.default);
+
+exports.ObjectEvent = ObjectEvent;
+
+/**
+ * @classdesc
+ * Abstract base class; normally only used for creating subclasses and not
+ * instantiated in apps.
+ * Most non-trivial classes inherit from this.
+ *
+ * This extends {@link module:ol/Observable} with observable
+ * properties, where each property is observable as well as the object as a
+ * whole.
+ *
+ * Classes that inherit from this have pre-defined properties, to which you can
+ * add your owns. The pre-defined properties are listed in this documentation as
+ * 'Observable Properties', and have their own accessors; for example,
+ * {@link module:ol/Map~Map} has a `target` property, accessed with
+ * `getTarget()` and changed with `setTarget()`. Not all properties are however
+ * settable. There are also general-purpose accessors `get()` and `set()`. For
+ * example, `get('target')` is equivalent to `getTarget()`.
+ *
+ * The `set` accessors trigger a change event, and you can monitor this by
+ * registering a listener. For example, {@link module:ol/View~View} has a
+ * `center` property, so `view.on('change:center', function(evt) {...});` would
+ * call the function whenever the value of the center property changes. Within
+ * the function, `evt.target` would be the view, so `evt.target.getCenter()`
+ * would return the new center.
+ *
+ * You can add your own observable properties with
+ * `object.set('prop', 'value')`, and retrieve that with `object.get('prop')`.
+ * You can listen for changes on that property value with
+ * `object.on('change:prop', listener)`. You can get a list of all
+ * properties with {@link module:ol/Object~BaseObject#getProperties}.
+ *
+ * Note that the observable properties are separate from standard JS properties.
+ * You can, for example, give your map object a title with
+ * `map.title='New title'` and with `map.set('title', 'Another title')`. The
+ * first will be a `hasOwnProperty`; the second will appear in
+ * `getProperties()`. Only the second is observable.
+ *
+ * Properties can be deleted by using the unset method. E.g.
+ * object.unset('foo').
+ *
+ * @fires ObjectEvent
+ * @api
+ */
+var BaseObject =
+/** @class */
+function (_super) {
+ __extends(BaseObject, _super);
+ /**
+ * @param {Object<string, *>=} opt_values An object with key-value pairs.
+ */
+
+
+ function BaseObject(opt_values) {
+ var _this = _super.call(this) || this; // Call {@link module:ol/util~getUid} to ensure that the order of objects' ids is
+ // the same as the order in which they were created. This also helps to
+ // ensure that object properties are always added in the same order, which
+ // helps many JavaScript engines generate faster code.
+
+
+ (0, _util.getUid)(_this);
+ /**
+ * @private
+ * @type {Object<string, *>}
+ */
+
+ _this.values_ = null;
+
+ if (opt_values !== undefined) {
+ _this.setProperties(opt_values);
+ }
+
+ return _this;
+ }
+ /**
+ * Gets a value.
+ * @param {string} key Key name.
+ * @return {*} Value.
+ * @api
+ */
+
+
+ BaseObject.prototype.get = function (key) {
+ var value;
+
+ if (this.values_ && this.values_.hasOwnProperty(key)) {
+ value = this.values_[key];
+ }
+
+ return value;
+ };
+ /**
+ * Get a list of object property names.
+ * @return {Array<string>} List of property names.
+ * @api
+ */
+
+
+ BaseObject.prototype.getKeys = function () {
+ return this.values_ && Object.keys(this.values_) || [];
+ };
+ /**
+ * Get an object of all property names and values.
+ * @return {Object<string, *>} Object.
+ * @api
+ */
+
+
+ BaseObject.prototype.getProperties = function () {
+ return this.values_ && (0, _obj.assign)({}, this.values_) || {};
+ };
+ /**
+ * @return {boolean} The object has properties.
+ */
+
+
+ BaseObject.prototype.hasProperties = function () {
+ return !!this.values_;
+ };
+ /**
+ * @param {string} key Key name.
+ * @param {*} oldValue Old value.
+ */
+
+
+ BaseObject.prototype.notify = function (key, oldValue) {
+ var eventType;
+ eventType = getChangeEventType(key);
+ this.dispatchEvent(new ObjectEvent(eventType, key, oldValue));
+ eventType = _ObjectEventType.default.PROPERTYCHANGE;
+ this.dispatchEvent(new ObjectEvent(eventType, key, oldValue));
+ };
+ /**
+ * Sets a value.
+ * @param {string} key Key name.
+ * @param {*} value Value.
+ * @param {boolean=} opt_silent Update without triggering an event.
+ * @api
+ */
+
+
+ BaseObject.prototype.set = function (key, value, opt_silent) {
+ var values = this.values_ || (this.values_ = {});
+
+ if (opt_silent) {
+ values[key] = value;
+ } else {
+ var oldValue = values[key];
+ values[key] = value;
+
+ if (oldValue !== value) {
+ this.notify(key, oldValue);
+ }
+ }
+ };
+ /**
+ * Sets a collection of key-value pairs. Note that this changes any existing
+ * properties and adds new ones (it does not remove any existing properties).
+ * @param {Object<string, *>} values Values.
+ * @param {boolean=} opt_silent Update without triggering an event.
+ * @api
+ */
+
+
+ BaseObject.prototype.setProperties = function (values, opt_silent) {
+ for (var key in values) {
+ this.set(key, values[key], opt_silent);
+ }
+ };
+ /**
+ * Unsets a property.
+ * @param {string} key Key name.
+ * @param {boolean=} opt_silent Unset without triggering an event.
+ * @api
+ */
+
+
+ BaseObject.prototype.unset = function (key, opt_silent) {
+ if (this.values_ && key in this.values_) {
+ var oldValue = this.values_[key];
+ delete this.values_[key];
+
+ if ((0, _obj.isEmpty)(this.values_)) {
+ this.values_ = null;
+ }
+
+ if (!opt_silent) {
+ this.notify(key, oldValue);
+ }
+ }
+ };
+
+ return BaseObject;
+}(_Observable.default);
+/**
+ * @type {Object<string, string>}
+ */
+
+
+var changeEventTypeCache = {};
+/**
+ * @param {string} key Key name.
+ * @return {string} Change name.
+ */
+
+function getChangeEventType(key) {
+ return changeEventTypeCache.hasOwnProperty(key) ? changeEventTypeCache[key] : changeEventTypeCache[key] = 'change:' + key;
+}
+
+var _default = BaseObject;
+exports.default = _default;
+},{"./events/Event.js":"../../../node_modules/ol/events/Event.js","./ObjectEventType.js":"../../../node_modules/ol/ObjectEventType.js","./Observable.js":"../../../node_modules/ol/Observable.js","./obj.js":"../../../node_modules/ol/obj.js","./util.js":"../../../node_modules/ol/util.js"}],"../../../node_modules/ol/CollectionEventType.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+/**
+ * @module ol/CollectionEventType
+ */
+
+/**
+ * @enum {string}
+ */
+var _default = {
+ /**
+ * Triggered when an item is added to the collection.
+ * @event module:ol/Collection.CollectionEvent#add
+ * @api
+ */
+ ADD: 'add',
+
+ /**
+ * Triggered when an item is removed from the collection.
+ * @event module:ol/Collection.CollectionEvent#remove
+ * @api
+ */
+ REMOVE: 'remove'
+};
+exports.default = _default;
+},{}],"../../../node_modules/ol/Collection.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = exports.CollectionEvent = void 0;
+
+var _AssertionError = _interopRequireDefault(require("./AssertionError.js"));
+
+var _Object = _interopRequireDefault(require("./Object.js"));
+
+var _CollectionEventType = _interopRequireDefault(require("./CollectionEventType.js"));
+
+var _Event = _interopRequireDefault(require("./events/Event.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/Collection
+ */
+
+
+/**
+ * @enum {string}
+ * @private
+ */
+var Property = {
+ LENGTH: 'length'
+};
+/**
+ * @classdesc
+ * Events emitted by {@link module:ol/Collection~Collection} instances are instances of this
+ * type.
+ */
+
+var CollectionEvent =
+/** @class */
+function (_super) {
+ __extends(CollectionEvent, _super);
+ /**
+ * @param {import("./CollectionEventType.js").default} type Type.
+ * @param {*=} opt_element Element.
+ * @param {number=} opt_index The index of the added or removed element.
+ */
+
+
+ function CollectionEvent(type, opt_element, opt_index) {
+ var _this = _super.call(this, type) || this;
+ /**
+ * The element that is added to or removed from the collection.
+ * @type {*}
+ * @api
+ */
+
+
+ _this.element = opt_element;
+ /**
+ * The index of the added or removed element.
+ * @type {number}
+ * @api
+ */
+
+ _this.index = opt_index;
+ return _this;
+ }
+
+ return CollectionEvent;
+}(_Event.default);
+
+exports.CollectionEvent = CollectionEvent;
+
+/**
+ * @typedef {Object} Options
+ * @property {boolean} [unique=false] Disallow the same item from being added to
+ * the collection twice.
+ */
+
+/**
+ * @classdesc
+ * An expanded version of standard JS Array, adding convenience methods for
+ * manipulation. Add and remove changes to the Collection trigger a Collection
+ * event. Note that this does not cover changes to the objects _within_ the
+ * Collection; they trigger events on the appropriate object, not on the
+ * Collection as a whole.
+ *
+ * @fires CollectionEvent
+ *
+ * @template T
+ * @api
+ */
+var Collection =
+/** @class */
+function (_super) {
+ __extends(Collection, _super);
+ /**
+ * @param {Array<T>=} opt_array Array.
+ * @param {Options=} opt_options Collection options.
+ */
+
+
+ function Collection(opt_array, opt_options) {
+ var _this = _super.call(this) || this;
+
+ var options = opt_options || {};
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ _this.unique_ = !!options.unique;
+ /**
+ * @private
+ * @type {!Array<T>}
+ */
+
+ _this.array_ = opt_array ? opt_array : [];
+
+ if (_this.unique_) {
+ for (var i = 0, ii = _this.array_.length; i < ii; ++i) {
+ _this.assertUnique_(_this.array_[i], i);
+ }
+ }
+
+ _this.updateLength_();
+
+ return _this;
+ }
+ /**
+ * Remove all elements from the collection.
+ * @api
+ */
+
+
+ Collection.prototype.clear = function () {
+ while (this.getLength() > 0) {
+ this.pop();
+ }
+ };
+ /**
+ * Add elements to the collection. This pushes each item in the provided array
+ * to the end of the collection.
+ * @param {!Array<T>} arr Array.
+ * @return {Collection<T>} This collection.
+ * @api
+ */
+
+
+ Collection.prototype.extend = function (arr) {
+ for (var i = 0, ii = arr.length; i < ii; ++i) {
+ this.push(arr[i]);
+ }
+
+ return this;
+ };
+ /**
+ * Iterate over each element, calling the provided callback.
+ * @param {function(T, number, Array<T>): *} f The function to call
+ * for every element. This function takes 3 arguments (the element, the
+ * index and the array). The return value is ignored.
+ * @api
+ */
+
+
+ Collection.prototype.forEach = function (f) {
+ var array = this.array_;
+
+ for (var i = 0, ii = array.length; i < ii; ++i) {
+ f(array[i], i, array);
+ }
+ };
+ /**
+ * Get a reference to the underlying Array object. Warning: if the array
+ * is mutated, no events will be dispatched by the collection, and the
+ * collection's "length" property won't be in sync with the actual length
+ * of the array.
+ * @return {!Array<T>} Array.
+ * @api
+ */
+
+
+ Collection.prototype.getArray = function () {
+ return this.array_;
+ };
+ /**
+ * Get the element at the provided index.
+ * @param {number} index Index.
+ * @return {T} Element.
+ * @api
+ */
+
+
+ Collection.prototype.item = function (index) {
+ return this.array_[index];
+ };
+ /**
+ * Get the length of this collection.
+ * @return {number} The length of the array.
+ * @observable
+ * @api
+ */
+
+
+ Collection.prototype.getLength = function () {
+ return this.get(Property.LENGTH);
+ };
+ /**
+ * Insert an element at the provided index.
+ * @param {number} index Index.
+ * @param {T} elem Element.
+ * @api
+ */
+
+
+ Collection.prototype.insertAt = function (index, elem) {
+ if (this.unique_) {
+ this.assertUnique_(elem);
+ }
+
+ this.array_.splice(index, 0, elem);
+ this.updateLength_();
+ this.dispatchEvent(new CollectionEvent(_CollectionEventType.default.ADD, elem, index));
+ };
+ /**
+ * Remove the last element of the collection and return it.
+ * Return `undefined` if the collection is empty.
+ * @return {T|undefined} Element.
+ * @api
+ */
+
+
+ Collection.prototype.pop = function () {
+ return this.removeAt(this.getLength() - 1);
+ };
+ /**
+ * Insert the provided element at the end of the collection.
+ * @param {T} elem Element.
+ * @return {number} New length of the collection.
+ * @api
+ */
+
+
+ Collection.prototype.push = function (elem) {
+ if (this.unique_) {
+ this.assertUnique_(elem);
+ }
+
+ var n = this.getLength();
+ this.insertAt(n, elem);
+ return this.getLength();
+ };
+ /**
+ * Remove the first occurrence of an element from the collection.
+ * @param {T} elem Element.
+ * @return {T|undefined} The removed element or undefined if none found.
+ * @api
+ */
+
+
+ Collection.prototype.remove = function (elem) {
+ var arr = this.array_;
+
+ for (var i = 0, ii = arr.length; i < ii; ++i) {
+ if (arr[i] === elem) {
+ return this.removeAt(i);
+ }
+ }
+
+ return undefined;
+ };
+ /**
+ * Remove the element at the provided index and return it.
+ * Return `undefined` if the collection does not contain this index.
+ * @param {number} index Index.
+ * @return {T|undefined} Value.
+ * @api
+ */
+
+
+ Collection.prototype.removeAt = function (index) {
+ var prev = this.array_[index];
+ this.array_.splice(index, 1);
+ this.updateLength_();
+ this.dispatchEvent(new CollectionEvent(_CollectionEventType.default.REMOVE, prev, index));
+ return prev;
+ };
+ /**
+ * Set the element at the provided index.
+ * @param {number} index Index.
+ * @param {T} elem Element.
+ * @api
+ */
+
+
+ Collection.prototype.setAt = function (index, elem) {
+ var n = this.getLength();
+
+ if (index < n) {
+ if (this.unique_) {
+ this.assertUnique_(elem, index);
+ }
+
+ var prev = this.array_[index];
+ this.array_[index] = elem;
+ this.dispatchEvent(new CollectionEvent(_CollectionEventType.default.REMOVE, prev, index));
+ this.dispatchEvent(new CollectionEvent(_CollectionEventType.default.ADD, elem, index));
+ } else {
+ for (var j = n; j < index; ++j) {
+ this.insertAt(j, undefined);
+ }
+
+ this.insertAt(index, elem);
+ }
+ };
+ /**
+ * @private
+ */
+
+
+ Collection.prototype.updateLength_ = function () {
+ this.set(Property.LENGTH, this.array_.length);
+ };
+ /**
+ * @private
+ * @param {T} elem Element.
+ * @param {number=} opt_except Optional index to ignore.
+ */
+
+
+ Collection.prototype.assertUnique_ = function (elem, opt_except) {
+ for (var i = 0, ii = this.array_.length; i < ii; ++i) {
+ if (this.array_[i] === elem && i !== opt_except) {
+ throw new _AssertionError.default(58);
+ }
+ }
+ };
+
+ return Collection;
+}(_Object.default);
+
+var _default = Collection;
+exports.default = _default;
+},{"./AssertionError.js":"../../../node_modules/ol/AssertionError.js","./Object.js":"../../../node_modules/ol/Object.js","./CollectionEventType.js":"../../../node_modules/ol/CollectionEventType.js","./events/Event.js":"../../../node_modules/ol/events/Event.js"}],"../../../node_modules/ol/asserts.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.assert = assert;
+
+var _AssertionError = _interopRequireDefault(require("./AssertionError.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module ol/asserts
+ */
+
+/**
+ * @param {*} assertion Assertion we expected to be truthy.
+ * @param {number} errorCode Error code.
+ */
+function assert(assertion, errorCode) {
+ if (!assertion) {
+ throw new _AssertionError.default(errorCode);
+ }
+}
+},{"./AssertionError.js":"../../../node_modules/ol/AssertionError.js"}],"../../../node_modules/ol/Feature.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.createStyleFunction = createStyleFunction;
+exports.default = void 0;
+
+var _Object = _interopRequireWildcard(require("./Object.js"));
+
+var _EventType = _interopRequireDefault(require("./events/EventType.js"));
+
+var _asserts = require("./asserts.js");
+
+var _events = require("./events.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/Feature
+ */
+
+
+/**
+ * @typedef {typeof Feature|typeof import("./render/Feature.js").default} FeatureClass
+ */
+
+/**
+ * @typedef {Feature|import("./render/Feature.js").default} FeatureLike
+ */
+
+/**
+ * @classdesc
+ * A vector object for geographic features with a geometry and other
+ * attribute properties, similar to the features in vector file formats like
+ * GeoJSON.
+ *
+ * Features can be styled individually with `setStyle`; otherwise they use the
+ * style of their vector layer.
+ *
+ * Note that attribute properties are set as {@link module:ol/Object} properties on
+ * the feature object, so they are observable, and have get/set accessors.
+ *
+ * Typically, a feature has a single geometry property. You can set the
+ * geometry using the `setGeometry` method and get it with `getGeometry`.
+ * It is possible to store more than one geometry on a feature using attribute
+ * properties. By default, the geometry used for rendering is identified by
+ * the property name `geometry`. If you want to use another geometry property
+ * for rendering, use the `setGeometryName` method to change the attribute
+ * property associated with the geometry for the feature. For example:
+ *
+ * ```js
+ *
+ * import Feature from 'ol/Feature';
+ * import Polygon from 'ol/geom/Polygon';
+ * import Point from 'ol/geom/Point';
+ *
+ * var feature = new Feature({
+ * geometry: new Polygon(polyCoords),
+ * labelPoint: new Point(labelCoords),
+ * name: 'My Polygon'
+ * });
+ *
+ * // get the polygon geometry
+ * var poly = feature.getGeometry();
+ *
+ * // Render the feature as a point using the coordinates from labelPoint
+ * feature.setGeometryName('labelPoint');
+ *
+ * // get the point geometry
+ * var point = feature.getGeometry();
+ * ```
+ *
+ * @api
+ * @template {import("./geom/Geometry.js").default} Geometry
+ */
+var Feature =
+/** @class */
+function (_super) {
+ __extends(Feature, _super);
+ /**
+ * @param {Geometry|Object<string, *>=} opt_geometryOrProperties
+ * You may pass a Geometry object directly, or an object literal containing
+ * properties. If you pass an object literal, you may include a Geometry
+ * associated with a `geometry` key.
+ */
+
+
+ function Feature(opt_geometryOrProperties) {
+ var _this = _super.call(this) || this;
+ /**
+ * @private
+ * @type {number|string|undefined}
+ */
+
+
+ _this.id_ = undefined;
+ /**
+ * @type {string}
+ * @private
+ */
+
+ _this.geometryName_ = 'geometry';
+ /**
+ * User provided style.
+ * @private
+ * @type {import("./style/Style.js").StyleLike}
+ */
+
+ _this.style_ = null;
+ /**
+ * @private
+ * @type {import("./style/Style.js").StyleFunction|undefined}
+ */
+
+ _this.styleFunction_ = undefined;
+ /**
+ * @private
+ * @type {?import("./events.js").EventsKey}
+ */
+
+ _this.geometryChangeKey_ = null;
+
+ _this.addEventListener((0, _Object.getChangeEventType)(_this.geometryName_), _this.handleGeometryChanged_);
+
+ if (opt_geometryOrProperties) {
+ if (typeof
+ /** @type {?} */
+ opt_geometryOrProperties.getSimplifiedGeometry === 'function') {
+ var geometry =
+ /** @type {Geometry} */
+ opt_geometryOrProperties;
+
+ _this.setGeometry(geometry);
+ } else {
+ /** @type {Object<string, *>} */
+ var properties = opt_geometryOrProperties;
+
+ _this.setProperties(properties);
+ }
+ }
+
+ return _this;
+ }
+ /**
+ * Clone this feature. If the original feature has a geometry it
+ * is also cloned. The feature id is not set in the clone.
+ * @return {Feature} The clone.
+ * @api
+ */
+
+
+ Feature.prototype.clone = function () {
+ var clone = new Feature(this.hasProperties() ? this.getProperties() : null);
+ clone.setGeometryName(this.getGeometryName());
+ var geometry = this.getGeometry();
+
+ if (geometry) {
+ clone.setGeometry(geometry.clone());
+ }
+
+ var style = this.getStyle();
+
+ if (style) {
+ clone.setStyle(style);
+ }
+
+ return clone;
+ };
+ /**
+ * Get the feature's default geometry. A feature may have any number of named
+ * geometries. The "default" geometry (the one that is rendered by default) is
+ * set when calling {@link module:ol/Feature~Feature#setGeometry}.
+ * @return {Geometry|undefined} The default geometry for the feature.
+ * @api
+ * @observable
+ */
+
+
+ Feature.prototype.getGeometry = function () {
+ return (
+ /** @type {Geometry|undefined} */
+ this.get(this.geometryName_)
+ );
+ };
+ /**
+ * Get the feature identifier. This is a stable identifier for the feature and
+ * is either set when reading data from a remote source or set explicitly by
+ * calling {@link module:ol/Feature~Feature#setId}.
+ * @return {number|string|undefined} Id.
+ * @api
+ */
+
+
+ Feature.prototype.getId = function () {
+ return this.id_;
+ };
+ /**
+ * Get the name of the feature's default geometry. By default, the default
+ * geometry is named `geometry`.
+ * @return {string} Get the property name associated with the default geometry
+ * for this feature.
+ * @api
+ */
+
+
+ Feature.prototype.getGeometryName = function () {
+ return this.geometryName_;
+ };
+ /**
+ * Get the feature's style. Will return what was provided to the
+ * {@link module:ol/Feature~Feature#setStyle} method.
+ * @return {import("./style/Style.js").StyleLike|undefined} The feature style.
+ * @api
+ */
+
+
+ Feature.prototype.getStyle = function () {
+ return this.style_;
+ };
+ /**
+ * Get the feature's style function.
+ * @return {import("./style/Style.js").StyleFunction|undefined} Return a function
+ * representing the current style of this feature.
+ * @api
+ */
+
+
+ Feature.prototype.getStyleFunction = function () {
+ return this.styleFunction_;
+ };
+ /**
+ * @private
+ */
+
+
+ Feature.prototype.handleGeometryChange_ = function () {
+ this.changed();
+ };
+ /**
+ * @private
+ */
+
+
+ Feature.prototype.handleGeometryChanged_ = function () {
+ if (this.geometryChangeKey_) {
+ (0, _events.unlistenByKey)(this.geometryChangeKey_);
+ this.geometryChangeKey_ = null;
+ }
+
+ var geometry = this.getGeometry();
+
+ if (geometry) {
+ this.geometryChangeKey_ = (0, _events.listen)(geometry, _EventType.default.CHANGE, this.handleGeometryChange_, this);
+ }
+
+ this.changed();
+ };
+ /**
+ * Set the default geometry for the feature. This will update the property
+ * with the name returned by {@link module:ol/Feature~Feature#getGeometryName}.
+ * @param {Geometry|undefined} geometry The new geometry.
+ * @api
+ * @observable
+ */
+
+
+ Feature.prototype.setGeometry = function (geometry) {
+ this.set(this.geometryName_, geometry);
+ };
+ /**
+ * Set the style for the feature to override the layer style. This can be a
+ * single style object, an array of styles, or a function that takes a
+ * resolution and returns an array of styles. To unset the feature style, call
+ * `setStyle()` without arguments or a falsey value.
+ * @param {import("./style/Style.js").StyleLike=} opt_style Style for this feature.
+ * @api
+ * @fires module:ol/events/Event~BaseEvent#event:change
+ */
+
+
+ Feature.prototype.setStyle = function (opt_style) {
+ this.style_ = opt_style;
+ this.styleFunction_ = !opt_style ? undefined : createStyleFunction(opt_style);
+ this.changed();
+ };
+ /**
+ * Set the feature id. The feature id is considered stable and may be used when
+ * requesting features or comparing identifiers returned from a remote source.
+ * The feature id can be used with the
+ * {@link module:ol/source/Vector~VectorSource#getFeatureById} method.
+ * @param {number|string|undefined} id The feature id.
+ * @api
+ * @fires module:ol/events/Event~BaseEvent#event:change
+ */
+
+
+ Feature.prototype.setId = function (id) {
+ this.id_ = id;
+ this.changed();
+ };
+ /**
+ * Set the property name to be used when getting the feature's default geometry.
+ * When calling {@link module:ol/Feature~Feature#getGeometry}, the value of the property with
+ * this name will be returned.
+ * @param {string} name The property name of the default geometry.
+ * @api
+ */
+
+
+ Feature.prototype.setGeometryName = function (name) {
+ this.removeEventListener((0, _Object.getChangeEventType)(this.geometryName_), this.handleGeometryChanged_);
+ this.geometryName_ = name;
+ this.addEventListener((0, _Object.getChangeEventType)(this.geometryName_), this.handleGeometryChanged_);
+ this.handleGeometryChanged_();
+ };
+
+ return Feature;
+}(_Object.default);
+/**
+ * Convert the provided object into a feature style function. Functions passed
+ * through unchanged. Arrays of Style or single style objects wrapped
+ * in a new feature style function.
+ * @param {!import("./style/Style.js").StyleFunction|!Array<import("./style/Style.js").default>|!import("./style/Style.js").default} obj
+ * A feature style function, a single style, or an array of styles.
+ * @return {import("./style/Style.js").StyleFunction} A style function.
+ */
+
+
+function createStyleFunction(obj) {
+ if (typeof obj === 'function') {
+ return obj;
+ } else {
+ /**
+ * @type {Array<import("./style/Style.js").default>}
+ */
+ var styles_1;
+
+ if (Array.isArray(obj)) {
+ styles_1 = obj;
+ } else {
+ (0, _asserts.assert)(typeof
+ /** @type {?} */
+ obj.getZIndex === 'function', 41); // Expected an `import("./style/Style.js").Style` or an array of `import("./style/Style.js").Style`
+
+ var style =
+ /** @type {import("./style/Style.js").default} */
+ obj;
+ styles_1 = [style];
+ }
+
+ return function () {
+ return styles_1;
+ };
+ }
+}
+
+var _default = Feature;
+exports.default = _default;
+},{"./Object.js":"../../../node_modules/ol/Object.js","./events/EventType.js":"../../../node_modules/ol/events/EventType.js","./asserts.js":"../../../node_modules/ol/asserts.js","./events.js":"../../../node_modules/ol/events.js"}],"../../../node_modules/ol/geom/GeometryLayout.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+/**
+ * @module ol/geom/GeometryLayout
+ */
+
+/**
+ * The coordinate layout for geometries, indicating whether a 3rd or 4th z ('Z')
+ * or measure ('M') coordinate is available. Supported values are `'XY'`,
+ * `'XYZ'`, `'XYM'`, `'XYZM'`.
+ * @enum {string}
+ */
+var _default = {
+ XY: 'XY',
+ XYZ: 'XYZ',
+ XYM: 'XYM',
+ XYZM: 'XYZM'
+};
+exports.default = _default;
+},{}],"../../../node_modules/ol/geom/GeometryType.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+/**
+ * @module ol/geom/GeometryType
+ */
+
+/**
+ * The geometry type. One of `'Point'`, `'LineString'`, `'LinearRing'`,
+ * `'Polygon'`, `'MultiPoint'`, `'MultiLineString'`, `'MultiPolygon'`,
+ * `'GeometryCollection'`, `'Circle'`.
+ * @enum {string}
+ */
+var _default = {
+ POINT: 'Point',
+ LINE_STRING: 'LineString',
+ LINEAR_RING: 'LinearRing',
+ POLYGON: 'Polygon',
+ MULTI_POINT: 'MultiPoint',
+ MULTI_LINE_STRING: 'MultiLineString',
+ MULTI_POLYGON: 'MultiPolygon',
+ GEOMETRY_COLLECTION: 'GeometryCollection',
+ CIRCLE: 'Circle'
+};
+exports.default = _default;
+},{}],"../../../node_modules/ol/proj/Units.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = exports.METERS_PER_UNIT = void 0;
+
+/**
+ * @module ol/proj/Units
+ */
+
+/**
+ * Projection units: `'degrees'`, `'ft'`, `'m'`, `'pixels'`, `'tile-pixels'` or
+ * `'us-ft'`.
+ * @enum {string}
+ */
+var Units = {
+ DEGREES: 'degrees',
+ FEET: 'ft',
+ METERS: 'm',
+ PIXELS: 'pixels',
+ TILE_PIXELS: 'tile-pixels',
+ USFEET: 'us-ft'
+};
+/**
+ * Meters per unit lookup table.
+ * @const
+ * @type {Object<Units, number>}
+ * @api
+ */
+
+var METERS_PER_UNIT = {}; // use the radius of the Normal sphere
+
+exports.METERS_PER_UNIT = METERS_PER_UNIT;
+METERS_PER_UNIT[Units.DEGREES] = 2 * Math.PI * 6370997 / 360;
+METERS_PER_UNIT[Units.FEET] = 0.3048;
+METERS_PER_UNIT[Units.METERS] = 1;
+METERS_PER_UNIT[Units.USFEET] = 1200 / 3937;
+var _default = Units;
+exports.default = _default;
+},{}],"../../../node_modules/ol/transform.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.create = create;
+exports.reset = reset;
+exports.multiply = multiply;
+exports.set = set;
+exports.setFromArray = setFromArray;
+exports.apply = apply;
+exports.rotate = rotate;
+exports.scale = scale;
+exports.makeScale = makeScale;
+exports.translate = translate;
+exports.compose = compose;
+exports.composeCssTransform = composeCssTransform;
+exports.invert = invert;
+exports.makeInverse = makeInverse;
+exports.determinant = determinant;
+exports.toString = toString;
+
+var _asserts = require("./asserts.js");
+
+/**
+ * @module ol/transform
+ */
+
+/**
+ * An array representing an affine 2d transformation for use with
+ * {@link module:ol/transform} functions. The array has 6 elements.
+ * @typedef {!Array<number>} Transform
+ * @api
+ */
+
+/**
+ * Collection of affine 2d transformation functions. The functions work on an
+ * array of 6 elements. The element order is compatible with the [SVGMatrix
+ * interface](https://developer.mozilla.org/en-US/docs/Web/API/SVGMatrix) and is
+ * a subset (elements a to f) of a 3×3 matrix:
+ * ```
+ * [ a c e ]
+ * [ b d f ]
+ * [ 0 0 1 ]
+ * ```
+ */
+
+/**
+ * @private
+ * @type {Transform}
+ */
+var tmp_ = new Array(6);
+/**
+ * Create an identity transform.
+ * @return {!Transform} Identity transform.
+ */
+
+function create() {
+ return [1, 0, 0, 1, 0, 0];
+}
+/**
+ * Resets the given transform to an identity transform.
+ * @param {!Transform} transform Transform.
+ * @return {!Transform} Transform.
+ */
+
+
+function reset(transform) {
+ return set(transform, 1, 0, 0, 1, 0, 0);
+}
+/**
+ * Multiply the underlying matrices of two transforms and return the result in
+ * the first transform.
+ * @param {!Transform} transform1 Transform parameters of matrix 1.
+ * @param {!Transform} transform2 Transform parameters of matrix 2.
+ * @return {!Transform} transform1 multiplied with transform2.
+ */
+
+
+function multiply(transform1, transform2) {
+ var a1 = transform1[0];
+ var b1 = transform1[1];
+ var c1 = transform1[2];
+ var d1 = transform1[3];
+ var e1 = transform1[4];
+ var f1 = transform1[5];
+ var a2 = transform2[0];
+ var b2 = transform2[1];
+ var c2 = transform2[2];
+ var d2 = transform2[3];
+ var e2 = transform2[4];
+ var f2 = transform2[5];
+ transform1[0] = a1 * a2 + c1 * b2;
+ transform1[1] = b1 * a2 + d1 * b2;
+ transform1[2] = a1 * c2 + c1 * d2;
+ transform1[3] = b1 * c2 + d1 * d2;
+ transform1[4] = a1 * e2 + c1 * f2 + e1;
+ transform1[5] = b1 * e2 + d1 * f2 + f1;
+ return transform1;
+}
+/**
+ * Set the transform components a-f on a given transform.
+ * @param {!Transform} transform Transform.
+ * @param {number} a The a component of the transform.
+ * @param {number} b The b component of the transform.
+ * @param {number} c The c component of the transform.
+ * @param {number} d The d component of the transform.
+ * @param {number} e The e component of the transform.
+ * @param {number} f The f component of the transform.
+ * @return {!Transform} Matrix with transform applied.
+ */
+
+
+function set(transform, a, b, c, d, e, f) {
+ transform[0] = a;
+ transform[1] = b;
+ transform[2] = c;
+ transform[3] = d;
+ transform[4] = e;
+ transform[5] = f;
+ return transform;
+}
+/**
+ * Set transform on one matrix from another matrix.
+ * @param {!Transform} transform1 Matrix to set transform to.
+ * @param {!Transform} transform2 Matrix to set transform from.
+ * @return {!Transform} transform1 with transform from transform2 applied.
+ */
+
+
+function setFromArray(transform1, transform2) {
+ transform1[0] = transform2[0];
+ transform1[1] = transform2[1];
+ transform1[2] = transform2[2];
+ transform1[3] = transform2[3];
+ transform1[4] = transform2[4];
+ transform1[5] = transform2[5];
+ return transform1;
+}
+/**
+ * Transforms the given coordinate with the given transform returning the
+ * resulting, transformed coordinate. The coordinate will be modified in-place.
+ *
+ * @param {Transform} transform The transformation.
+ * @param {import("./coordinate.js").Coordinate|import("./pixel.js").Pixel} coordinate The coordinate to transform.
+ * @return {import("./coordinate.js").Coordinate|import("./pixel.js").Pixel} return coordinate so that operations can be
+ * chained together.
+ */
+
+
+function apply(transform, coordinate) {
+ var x = coordinate[0];
+ var y = coordinate[1];
+ coordinate[0] = transform[0] * x + transform[2] * y + transform[4];
+ coordinate[1] = transform[1] * x + transform[3] * y + transform[5];
+ return coordinate;
+}
+/**
+ * Applies rotation to the given transform.
+ * @param {!Transform} transform Transform.
+ * @param {number} angle Angle in radians.
+ * @return {!Transform} The rotated transform.
+ */
+
+
+function rotate(transform, angle) {
+ var cos = Math.cos(angle);
+ var sin = Math.sin(angle);
+ return multiply(transform, set(tmp_, cos, sin, -sin, cos, 0, 0));
+}
+/**
+ * Applies scale to a given transform.
+ * @param {!Transform} transform Transform.
+ * @param {number} x Scale factor x.
+ * @param {number} y Scale factor y.
+ * @return {!Transform} The scaled transform.
+ */
+
+
+function scale(transform, x, y) {
+ return multiply(transform, set(tmp_, x, 0, 0, y, 0, 0));
+}
+/**
+ * Creates a scale transform.
+ * @param {!Transform} target Transform to overwrite.
+ * @param {number} x Scale factor x.
+ * @param {number} y Scale factor y.
+ * @return {!Transform} The scale transform.
+ */
+
+
+function makeScale(target, x, y) {
+ return set(target, x, 0, 0, y, 0, 0);
+}
+/**
+ * Applies translation to the given transform.
+ * @param {!Transform} transform Transform.
+ * @param {number} dx Translation x.
+ * @param {number} dy Translation y.
+ * @return {!Transform} The translated transform.
+ */
+
+
+function translate(transform, dx, dy) {
+ return multiply(transform, set(tmp_, 1, 0, 0, 1, dx, dy));
+}
+/**
+ * Creates a composite transform given an initial translation, scale, rotation, and
+ * final translation (in that order only, not commutative).
+ * @param {!Transform} transform The transform (will be modified in place).
+ * @param {number} dx1 Initial translation x.
+ * @param {number} dy1 Initial translation y.
+ * @param {number} sx Scale factor x.
+ * @param {number} sy Scale factor y.
+ * @param {number} angle Rotation (in counter-clockwise radians).
+ * @param {number} dx2 Final translation x.
+ * @param {number} dy2 Final translation y.
+ * @return {!Transform} The composite transform.
+ */
+
+
+function compose(transform, dx1, dy1, sx, sy, angle, dx2, dy2) {
+ var sin = Math.sin(angle);
+ var cos = Math.cos(angle);
+ transform[0] = sx * cos;
+ transform[1] = sy * sin;
+ transform[2] = -sx * sin;
+ transform[3] = sy * cos;
+ transform[4] = dx2 * sx * cos - dy2 * sx * sin + dx1;
+ transform[5] = dx2 * sy * sin + dy2 * sy * cos + dy1;
+ return transform;
+}
+/**
+ * Creates a composite transform given an initial translation, scale, rotation, and
+ * final translation (in that order only, not commutative). The resulting transform
+ * string can be applied as `transform` porperty of an HTMLElement's style.
+ * @param {number} dx1 Initial translation x.
+ * @param {number} dy1 Initial translation y.
+ * @param {number} sx Scale factor x.
+ * @param {number} sy Scale factor y.
+ * @param {number} angle Rotation (in counter-clockwise radians).
+ * @param {number} dx2 Final translation x.
+ * @param {number} dy2 Final translation y.
+ * @return {string} The composite css transform.
+ * @api
+ */
+
+
+function composeCssTransform(dx1, dy1, sx, sy, angle, dx2, dy2) {
+ return toString(compose(create(), dx1, dy1, sx, sy, angle, dx2, dy2));
+}
+/**
+ * Invert the given transform.
+ * @param {!Transform} source The source transform to invert.
+ * @return {!Transform} The inverted (source) transform.
+ */
+
+
+function invert(source) {
+ return makeInverse(source, source);
+}
+/**
+ * Invert the given transform.
+ * @param {!Transform} target Transform to be set as the inverse of
+ * the source transform.
+ * @param {!Transform} source The source transform to invert.
+ * @return {!Transform} The inverted (target) transform.
+ */
+
+
+function makeInverse(target, source) {
+ var det = determinant(source);
+ (0, _asserts.assert)(det !== 0, 32); // Transformation matrix cannot be inverted
+
+ var a = source[0];
+ var b = source[1];
+ var c = source[2];
+ var d = source[3];
+ var e = source[4];
+ var f = source[5];
+ target[0] = d / det;
+ target[1] = -b / det;
+ target[2] = -c / det;
+ target[3] = a / det;
+ target[4] = (c * f - d * e) / det;
+ target[5] = -(a * f - b * e) / det;
+ return target;
+}
+/**
+ * Returns the determinant of the given matrix.
+ * @param {!Transform} mat Matrix.
+ * @return {number} Determinant.
+ */
+
+
+function determinant(mat) {
+ return mat[0] * mat[3] - mat[1] * mat[2];
+}
+/**
+ * A string version of the transform. This can be used
+ * for CSS transforms.
+ * @param {!Transform} mat Matrix.
+ * @return {string} The transform as a string.
+ */
+
+
+function toString(mat) {
+ return 'matrix(' + mat.join(', ') + ')';
+}
+},{"./asserts.js":"../../../node_modules/ol/asserts.js"}],"../../../node_modules/ol/extent/Corner.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+/**
+ * @module ol/extent/Corner
+ */
+
+/**
+ * Extent corner.
+ * @enum {string}
+ */
+var _default = {
+ BOTTOM_LEFT: 'bottom-left',
+ BOTTOM_RIGHT: 'bottom-right',
+ TOP_LEFT: 'top-left',
+ TOP_RIGHT: 'top-right'
+};
+exports.default = _default;
+},{}],"../../../node_modules/ol/extent/Relationship.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+/**
+ * @module ol/extent/Relationship
+ */
+
+/**
+ * Relationship to an extent.
+ * @enum {number}
+ */
+var _default = {
+ UNKNOWN: 0,
+ INTERSECTING: 1,
+ ABOVE: 2,
+ RIGHT: 4,
+ BELOW: 8,
+ LEFT: 16
+};
+exports.default = _default;
+},{}],"../../../node_modules/ol/extent.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.boundingExtent = boundingExtent;
+exports.buffer = buffer;
+exports.clone = clone;
+exports.closestSquaredDistanceXY = closestSquaredDistanceXY;
+exports.containsCoordinate = containsCoordinate;
+exports.containsExtent = containsExtent;
+exports.containsXY = containsXY;
+exports.coordinateRelationship = coordinateRelationship;
+exports.createEmpty = createEmpty;
+exports.createOrUpdate = createOrUpdate;
+exports.createOrUpdateEmpty = createOrUpdateEmpty;
+exports.createOrUpdateFromCoordinate = createOrUpdateFromCoordinate;
+exports.createOrUpdateFromCoordinates = createOrUpdateFromCoordinates;
+exports.createOrUpdateFromFlatCoordinates = createOrUpdateFromFlatCoordinates;
+exports.createOrUpdateFromRings = createOrUpdateFromRings;
+exports.equals = equals;
+exports.approximatelyEquals = approximatelyEquals;
+exports.extend = extend;
+exports.extendCoordinate = extendCoordinate;
+exports.extendCoordinates = extendCoordinates;
+exports.extendFlatCoordinates = extendFlatCoordinates;
+exports.extendRings = extendRings;
+exports.extendXY = extendXY;
+exports.forEachCorner = forEachCorner;
+exports.getArea = getArea;
+exports.getBottomLeft = getBottomLeft;
+exports.getBottomRight = getBottomRight;
+exports.getCenter = getCenter;
+exports.getCorner = getCorner;
+exports.getEnlargedArea = getEnlargedArea;
+exports.getForViewAndSize = getForViewAndSize;
+exports.getHeight = getHeight;
+exports.getIntersectionArea = getIntersectionArea;
+exports.getIntersection = getIntersection;
+exports.getMargin = getMargin;
+exports.getSize = getSize;
+exports.getTopLeft = getTopLeft;
+exports.getTopRight = getTopRight;
+exports.getWidth = getWidth;
+exports.intersects = intersects;
+exports.isEmpty = isEmpty;
+exports.returnOrUpdate = returnOrUpdate;
+exports.scaleFromCenter = scaleFromCenter;
+exports.intersectsSegment = intersectsSegment;
+exports.applyTransform = applyTransform;
+exports.wrapX = wrapX;
+
+var _Corner = _interopRequireDefault(require("./extent/Corner.js"));
+
+var _Relationship = _interopRequireDefault(require("./extent/Relationship.js"));
+
+var _asserts = require("./asserts.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module ol/extent
+ */
+
+/**
+ * An array of numbers representing an extent: `[minx, miny, maxx, maxy]`.
+ * @typedef {Array<number>} Extent
+ * @api
+ */
+
+/**
+ * Build an extent that includes all given coordinates.
+ *
+ * @param {Array<import("./coordinate.js").Coordinate>} coordinates Coordinates.
+ * @return {Extent} Bounding extent.
+ * @api
+ */
+function boundingExtent(coordinates) {
+ var extent = createEmpty();
+
+ for (var i = 0, ii = coordinates.length; i < ii; ++i) {
+ extendCoordinate(extent, coordinates[i]);
+ }
+
+ return extent;
+}
+/**
+ * @param {Array<number>} xs Xs.
+ * @param {Array<number>} ys Ys.
+ * @param {Extent=} opt_extent Destination extent.
+ * @private
+ * @return {Extent} Extent.
+ */
+
+
+function _boundingExtentXYs(xs, ys, opt_extent) {
+ var minX = Math.min.apply(null, xs);
+ var minY = Math.min.apply(null, ys);
+ var maxX = Math.max.apply(null, xs);
+ var maxY = Math.max.apply(null, ys);
+ return createOrUpdate(minX, minY, maxX, maxY, opt_extent);
+}
+/**
+ * Return extent increased by the provided value.
+ * @param {Extent} extent Extent.
+ * @param {number} value The amount by which the extent should be buffered.
+ * @param {Extent=} opt_extent Extent.
+ * @return {Extent} Extent.
+ * @api
+ */
+
+
+function buffer(extent, value, opt_extent) {
+ if (opt_extent) {
+ opt_extent[0] = extent[0] - value;
+ opt_extent[1] = extent[1] - value;
+ opt_extent[2] = extent[2] + value;
+ opt_extent[3] = extent[3] + value;
+ return opt_extent;
+ } else {
+ return [extent[0] - value, extent[1] - value, extent[2] + value, extent[3] + value];
+ }
+}
+/**
+ * Creates a clone of an extent.
+ *
+ * @param {Extent} extent Extent to clone.
+ * @param {Extent=} opt_extent Extent.
+ * @return {Extent} The clone.
+ */
+
+
+function clone(extent, opt_extent) {
+ if (opt_extent) {
+ opt_extent[0] = extent[0];
+ opt_extent[1] = extent[1];
+ opt_extent[2] = extent[2];
+ opt_extent[3] = extent[3];
+ return opt_extent;
+ } else {
+ return extent.slice();
+ }
+}
+/**
+ * @param {Extent} extent Extent.
+ * @param {number} x X.
+ * @param {number} y Y.
+ * @return {number} Closest squared distance.
+ */
+
+
+function closestSquaredDistanceXY(extent, x, y) {
+ var dx, dy;
+
+ if (x < extent[0]) {
+ dx = extent[0] - x;
+ } else if (extent[2] < x) {
+ dx = x - extent[2];
+ } else {
+ dx = 0;
+ }
+
+ if (y < extent[1]) {
+ dy = extent[1] - y;
+ } else if (extent[3] < y) {
+ dy = y - extent[3];
+ } else {
+ dy = 0;
+ }
+
+ return dx * dx + dy * dy;
+}
+/**
+ * Check if the passed coordinate is contained or on the edge of the extent.
+ *
+ * @param {Extent} extent Extent.
+ * @param {import("./coordinate.js").Coordinate} coordinate Coordinate.
+ * @return {boolean} The coordinate is contained in the extent.
+ * @api
+ */
+
+
+function containsCoordinate(extent, coordinate) {
+ return containsXY(extent, coordinate[0], coordinate[1]);
+}
+/**
+ * Check if one extent contains another.
+ *
+ * An extent is deemed contained if it lies completely within the other extent,
+ * including if they share one or more edges.
+ *
+ * @param {Extent} extent1 Extent 1.
+ * @param {Extent} extent2 Extent 2.
+ * @return {boolean} The second extent is contained by or on the edge of the
+ * first.
+ * @api
+ */
+
+
+function containsExtent(extent1, extent2) {
+ return extent1[0] <= extent2[0] && extent2[2] <= extent1[2] && extent1[1] <= extent2[1] && extent2[3] <= extent1[3];
+}
+/**
+ * Check if the passed coordinate is contained or on the edge of the extent.
+ *
+ * @param {Extent} extent Extent.
+ * @param {number} x X coordinate.
+ * @param {number} y Y coordinate.
+ * @return {boolean} The x, y values are contained in the extent.
+ * @api
+ */
+
+
+function containsXY(extent, x, y) {
+ return extent[0] <= x && x <= extent[2] && extent[1] <= y && y <= extent[3];
+}
+/**
+ * Get the relationship between a coordinate and extent.
+ * @param {Extent} extent The extent.
+ * @param {import("./coordinate.js").Coordinate} coordinate The coordinate.
+ * @return {import("./extent/Relationship.js").default} The relationship (bitwise compare with
+ * import("./extent/Relationship.js").Relationship).
+ */
+
+
+function coordinateRelationship(extent, coordinate) {
+ var minX = extent[0];
+ var minY = extent[1];
+ var maxX = extent[2];
+ var maxY = extent[3];
+ var x = coordinate[0];
+ var y = coordinate[1];
+ var relationship = _Relationship.default.UNKNOWN;
+
+ if (x < minX) {
+ relationship = relationship | _Relationship.default.LEFT;
+ } else if (x > maxX) {
+ relationship = relationship | _Relationship.default.RIGHT;
+ }
+
+ if (y < minY) {
+ relationship = relationship | _Relationship.default.BELOW;
+ } else if (y > maxY) {
+ relationship = relationship | _Relationship.default.ABOVE;
+ }
+
+ if (relationship === _Relationship.default.UNKNOWN) {
+ relationship = _Relationship.default.INTERSECTING;
+ }
+
+ return relationship;
+}
+/**
+ * Create an empty extent.
+ * @return {Extent} Empty extent.
+ * @api
+ */
+
+
+function createEmpty() {
+ return [Infinity, Infinity, -Infinity, -Infinity];
+}
+/**
+ * Create a new extent or update the provided extent.
+ * @param {number} minX Minimum X.
+ * @param {number} minY Minimum Y.
+ * @param {number} maxX Maximum X.
+ * @param {number} maxY Maximum Y.
+ * @param {Extent=} opt_extent Destination extent.
+ * @return {Extent} Extent.
+ */
+
+
+function createOrUpdate(minX, minY, maxX, maxY, opt_extent) {
+ if (opt_extent) {
+ opt_extent[0] = minX;
+ opt_extent[1] = minY;
+ opt_extent[2] = maxX;
+ opt_extent[3] = maxY;
+ return opt_extent;
+ } else {
+ return [minX, minY, maxX, maxY];
+ }
+}
+/**
+ * Create a new empty extent or make the provided one empty.
+ * @param {Extent=} opt_extent Extent.
+ * @return {Extent} Extent.
+ */
+
+
+function createOrUpdateEmpty(opt_extent) {
+ return createOrUpdate(Infinity, Infinity, -Infinity, -Infinity, opt_extent);
+}
+/**
+ * @param {import("./coordinate.js").Coordinate} coordinate Coordinate.
+ * @param {Extent=} opt_extent Extent.
+ * @return {Extent} Extent.
+ */
+
+
+function createOrUpdateFromCoordinate(coordinate, opt_extent) {
+ var x = coordinate[0];
+ var y = coordinate[1];
+ return createOrUpdate(x, y, x, y, opt_extent);
+}
+/**
+ * @param {Array<import("./coordinate.js").Coordinate>} coordinates Coordinates.
+ * @param {Extent=} opt_extent Extent.
+ * @return {Extent} Extent.
+ */
+
+
+function createOrUpdateFromCoordinates(coordinates, opt_extent) {
+ var extent = createOrUpdateEmpty(opt_extent);
+ return extendCoordinates(extent, coordinates);
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @param {Extent=} opt_extent Extent.
+ * @return {Extent} Extent.
+ */
+
+
+function createOrUpdateFromFlatCoordinates(flatCoordinates, offset, end, stride, opt_extent) {
+ var extent = createOrUpdateEmpty(opt_extent);
+ return extendFlatCoordinates(extent, flatCoordinates, offset, end, stride);
+}
+/**
+ * @param {Array<Array<import("./coordinate.js").Coordinate>>} rings Rings.
+ * @param {Extent=} opt_extent Extent.
+ * @return {Extent} Extent.
+ */
+
+
+function createOrUpdateFromRings(rings, opt_extent) {
+ var extent = createOrUpdateEmpty(opt_extent);
+ return extendRings(extent, rings);
+}
+/**
+ * Determine if two extents are equivalent.
+ * @param {Extent} extent1 Extent 1.
+ * @param {Extent} extent2 Extent 2.
+ * @return {boolean} The two extents are equivalent.
+ * @api
+ */
+
+
+function equals(extent1, extent2) {
+ return extent1[0] == extent2[0] && extent1[2] == extent2[2] && extent1[1] == extent2[1] && extent1[3] == extent2[3];
+}
+/**
+ * Determine if two extents are approximately equivalent.
+ * @param {Extent} extent1 Extent 1.
+ * @param {Extent} extent2 Extent 2.
+ * @param {number} tolerance Tolerance in extent coordinate units.
+ * @return {boolean} The two extents differ by less than the tolerance.
+ */
+
+
+function approximatelyEquals(extent1, extent2, tolerance) {
+ return Math.abs(extent1[0] - extent2[0]) < tolerance && Math.abs(extent1[2] - extent2[2]) < tolerance && Math.abs(extent1[1] - extent2[1]) < tolerance && Math.abs(extent1[3] - extent2[3]) < tolerance;
+}
+/**
+ * Modify an extent to include another extent.
+ * @param {Extent} extent1 The extent to be modified.
+ * @param {Extent} extent2 The extent that will be included in the first.
+ * @return {Extent} A reference to the first (extended) extent.
+ * @api
+ */
+
+
+function extend(extent1, extent2) {
+ if (extent2[0] < extent1[0]) {
+ extent1[0] = extent2[0];
+ }
+
+ if (extent2[2] > extent1[2]) {
+ extent1[2] = extent2[2];
+ }
+
+ if (extent2[1] < extent1[1]) {
+ extent1[1] = extent2[1];
+ }
+
+ if (extent2[3] > extent1[3]) {
+ extent1[3] = extent2[3];
+ }
+
+ return extent1;
+}
+/**
+ * @param {Extent} extent Extent.
+ * @param {import("./coordinate.js").Coordinate} coordinate Coordinate.
+ */
+
+
+function extendCoordinate(extent, coordinate) {
+ if (coordinate[0] < extent[0]) {
+ extent[0] = coordinate[0];
+ }
+
+ if (coordinate[0] > extent[2]) {
+ extent[2] = coordinate[0];
+ }
+
+ if (coordinate[1] < extent[1]) {
+ extent[1] = coordinate[1];
+ }
+
+ if (coordinate[1] > extent[3]) {
+ extent[3] = coordinate[1];
+ }
+}
+/**
+ * @param {Extent} extent Extent.
+ * @param {Array<import("./coordinate.js").Coordinate>} coordinates Coordinates.
+ * @return {Extent} Extent.
+ */
+
+
+function extendCoordinates(extent, coordinates) {
+ for (var i = 0, ii = coordinates.length; i < ii; ++i) {
+ extendCoordinate(extent, coordinates[i]);
+ }
+
+ return extent;
+}
+/**
+ * @param {Extent} extent Extent.
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @return {Extent} Extent.
+ */
+
+
+function extendFlatCoordinates(extent, flatCoordinates, offset, end, stride) {
+ for (; offset < end; offset += stride) {
+ extendXY(extent, flatCoordinates[offset], flatCoordinates[offset + 1]);
+ }
+
+ return extent;
+}
+/**
+ * @param {Extent} extent Extent.
+ * @param {Array<Array<import("./coordinate.js").Coordinate>>} rings Rings.
+ * @return {Extent} Extent.
+ */
+
+
+function extendRings(extent, rings) {
+ for (var i = 0, ii = rings.length; i < ii; ++i) {
+ extendCoordinates(extent, rings[i]);
+ }
+
+ return extent;
+}
+/**
+ * @param {Extent} extent Extent.
+ * @param {number} x X.
+ * @param {number} y Y.
+ */
+
+
+function extendXY(extent, x, y) {
+ extent[0] = Math.min(extent[0], x);
+ extent[1] = Math.min(extent[1], y);
+ extent[2] = Math.max(extent[2], x);
+ extent[3] = Math.max(extent[3], y);
+}
+/**
+ * This function calls `callback` for each corner of the extent. If the
+ * callback returns a truthy value the function returns that value
+ * immediately. Otherwise the function returns `false`.
+ * @param {Extent} extent Extent.
+ * @param {function(import("./coordinate.js").Coordinate): S} callback Callback.
+ * @return {S|boolean} Value.
+ * @template S
+ */
+
+
+function forEachCorner(extent, callback) {
+ var val;
+ val = callback(getBottomLeft(extent));
+
+ if (val) {
+ return val;
+ }
+
+ val = callback(getBottomRight(extent));
+
+ if (val) {
+ return val;
+ }
+
+ val = callback(getTopRight(extent));
+
+ if (val) {
+ return val;
+ }
+
+ val = callback(getTopLeft(extent));
+
+ if (val) {
+ return val;
+ }
+
+ return false;
+}
+/**
+ * Get the size of an extent.
+ * @param {Extent} extent Extent.
+ * @return {number} Area.
+ * @api
+ */
+
+
+function getArea(extent) {
+ var area = 0;
+
+ if (!isEmpty(extent)) {
+ area = getWidth(extent) * getHeight(extent);
+ }
+
+ return area;
+}
+/**
+ * Get the bottom left coordinate of an extent.
+ * @param {Extent} extent Extent.
+ * @return {import("./coordinate.js").Coordinate} Bottom left coordinate.
+ * @api
+ */
+
+
+function getBottomLeft(extent) {
+ return [extent[0], extent[1]];
+}
+/**
+ * Get the bottom right coordinate of an extent.
+ * @param {Extent} extent Extent.
+ * @return {import("./coordinate.js").Coordinate} Bottom right coordinate.
+ * @api
+ */
+
+
+function getBottomRight(extent) {
+ return [extent[2], extent[1]];
+}
+/**
+ * Get the center coordinate of an extent.
+ * @param {Extent} extent Extent.
+ * @return {import("./coordinate.js").Coordinate} Center.
+ * @api
+ */
+
+
+function getCenter(extent) {
+ return [(extent[0] + extent[2]) / 2, (extent[1] + extent[3]) / 2];
+}
+/**
+ * Get a corner coordinate of an extent.
+ * @param {Extent} extent Extent.
+ * @param {import("./extent/Corner.js").default} corner Corner.
+ * @return {import("./coordinate.js").Coordinate} Corner coordinate.
+ */
+
+
+function getCorner(extent, corner) {
+ var coordinate;
+
+ if (corner === _Corner.default.BOTTOM_LEFT) {
+ coordinate = getBottomLeft(extent);
+ } else if (corner === _Corner.default.BOTTOM_RIGHT) {
+ coordinate = getBottomRight(extent);
+ } else if (corner === _Corner.default.TOP_LEFT) {
+ coordinate = getTopLeft(extent);
+ } else if (corner === _Corner.default.TOP_RIGHT) {
+ coordinate = getTopRight(extent);
+ } else {
+ (0, _asserts.assert)(false, 13); // Invalid corner
+ }
+
+ return coordinate;
+}
+/**
+ * @param {Extent} extent1 Extent 1.
+ * @param {Extent} extent2 Extent 2.
+ * @return {number} Enlarged area.
+ */
+
+
+function getEnlargedArea(extent1, extent2) {
+ var minX = Math.min(extent1[0], extent2[0]);
+ var minY = Math.min(extent1[1], extent2[1]);
+ var maxX = Math.max(extent1[2], extent2[2]);
+ var maxY = Math.max(extent1[3], extent2[3]);
+ return (maxX - minX) * (maxY - minY);
+}
+/**
+ * @param {import("./coordinate.js").Coordinate} center Center.
+ * @param {number} resolution Resolution.
+ * @param {number} rotation Rotation.
+ * @param {import("./size.js").Size} size Size.
+ * @param {Extent=} opt_extent Destination extent.
+ * @return {Extent} Extent.
+ */
+
+
+function getForViewAndSize(center, resolution, rotation, size, opt_extent) {
+ var dx = resolution * size[0] / 2;
+ var dy = resolution * size[1] / 2;
+ var cosRotation = Math.cos(rotation);
+ var sinRotation = Math.sin(rotation);
+ var xCos = dx * cosRotation;
+ var xSin = dx * sinRotation;
+ var yCos = dy * cosRotation;
+ var ySin = dy * sinRotation;
+ var x = center[0];
+ var y = center[1];
+ var x0 = x - xCos + ySin;
+ var x1 = x - xCos - ySin;
+ var x2 = x + xCos - ySin;
+ var x3 = x + xCos + ySin;
+ var y0 = y - xSin - yCos;
+ var y1 = y - xSin + yCos;
+ var y2 = y + xSin + yCos;
+ var y3 = y + xSin - yCos;
+ return createOrUpdate(Math.min(x0, x1, x2, x3), Math.min(y0, y1, y2, y3), Math.max(x0, x1, x2, x3), Math.max(y0, y1, y2, y3), opt_extent);
+}
+/**
+ * Get the height of an extent.
+ * @param {Extent} extent Extent.
+ * @return {number} Height.
+ * @api
+ */
+
+
+function getHeight(extent) {
+ return extent[3] - extent[1];
+}
+/**
+ * @param {Extent} extent1 Extent 1.
+ * @param {Extent} extent2 Extent 2.
+ * @return {number} Intersection area.
+ */
+
+
+function getIntersectionArea(extent1, extent2) {
+ var intersection = getIntersection(extent1, extent2);
+ return getArea(intersection);
+}
+/**
+ * Get the intersection of two extents.
+ * @param {Extent} extent1 Extent 1.
+ * @param {Extent} extent2 Extent 2.
+ * @param {Extent=} opt_extent Optional extent to populate with intersection.
+ * @return {Extent} Intersecting extent.
+ * @api
+ */
+
+
+function getIntersection(extent1, extent2, opt_extent) {
+ var intersection = opt_extent ? opt_extent : createEmpty();
+
+ if (intersects(extent1, extent2)) {
+ if (extent1[0] > extent2[0]) {
+ intersection[0] = extent1[0];
+ } else {
+ intersection[0] = extent2[0];
+ }
+
+ if (extent1[1] > extent2[1]) {
+ intersection[1] = extent1[1];
+ } else {
+ intersection[1] = extent2[1];
+ }
+
+ if (extent1[2] < extent2[2]) {
+ intersection[2] = extent1[2];
+ } else {
+ intersection[2] = extent2[2];
+ }
+
+ if (extent1[3] < extent2[3]) {
+ intersection[3] = extent1[3];
+ } else {
+ intersection[3] = extent2[3];
+ }
+ } else {
+ createOrUpdateEmpty(intersection);
+ }
+
+ return intersection;
+}
+/**
+ * @param {Extent} extent Extent.
+ * @return {number} Margin.
+ */
+
+
+function getMargin(extent) {
+ return getWidth(extent) + getHeight(extent);
+}
+/**
+ * Get the size (width, height) of an extent.
+ * @param {Extent} extent The extent.
+ * @return {import("./size.js").Size} The extent size.
+ * @api
+ */
+
+
+function getSize(extent) {
+ return [extent[2] - extent[0], extent[3] - extent[1]];
+}
+/**
+ * Get the top left coordinate of an extent.
+ * @param {Extent} extent Extent.
+ * @return {import("./coordinate.js").Coordinate} Top left coordinate.
+ * @api
+ */
+
+
+function getTopLeft(extent) {
+ return [extent[0], extent[3]];
+}
+/**
+ * Get the top right coordinate of an extent.
+ * @param {Extent} extent Extent.
+ * @return {import("./coordinate.js").Coordinate} Top right coordinate.
+ * @api
+ */
+
+
+function getTopRight(extent) {
+ return [extent[2], extent[3]];
+}
+/**
+ * Get the width of an extent.
+ * @param {Extent} extent Extent.
+ * @return {number} Width.
+ * @api
+ */
+
+
+function getWidth(extent) {
+ return extent[2] - extent[0];
+}
+/**
+ * Determine if one extent intersects another.
+ * @param {Extent} extent1 Extent 1.
+ * @param {Extent} extent2 Extent.
+ * @return {boolean} The two extents intersect.
+ * @api
+ */
+
+
+function intersects(extent1, extent2) {
+ return extent1[0] <= extent2[2] && extent1[2] >= extent2[0] && extent1[1] <= extent2[3] && extent1[3] >= extent2[1];
+}
+/**
+ * Determine if an extent is empty.
+ * @param {Extent} extent Extent.
+ * @return {boolean} Is empty.
+ * @api
+ */
+
+
+function isEmpty(extent) {
+ return extent[2] < extent[0] || extent[3] < extent[1];
+}
+/**
+ * @param {Extent} extent Extent.
+ * @param {Extent=} opt_extent Extent.
+ * @return {Extent} Extent.
+ */
+
+
+function returnOrUpdate(extent, opt_extent) {
+ if (opt_extent) {
+ opt_extent[0] = extent[0];
+ opt_extent[1] = extent[1];
+ opt_extent[2] = extent[2];
+ opt_extent[3] = extent[3];
+ return opt_extent;
+ } else {
+ return extent;
+ }
+}
+/**
+ * @param {Extent} extent Extent.
+ * @param {number} value Value.
+ */
+
+
+function scaleFromCenter(extent, value) {
+ var deltaX = (extent[2] - extent[0]) / 2 * (value - 1);
+ var deltaY = (extent[3] - extent[1]) / 2 * (value - 1);
+ extent[0] -= deltaX;
+ extent[2] += deltaX;
+ extent[1] -= deltaY;
+ extent[3] += deltaY;
+}
+/**
+ * Determine if the segment between two coordinates intersects (crosses,
+ * touches, or is contained by) the provided extent.
+ * @param {Extent} extent The extent.
+ * @param {import("./coordinate.js").Coordinate} start Segment start coordinate.
+ * @param {import("./coordinate.js").Coordinate} end Segment end coordinate.
+ * @return {boolean} The segment intersects the extent.
+ */
+
+
+function intersectsSegment(extent, start, end) {
+ var intersects = false;
+ var startRel = coordinateRelationship(extent, start);
+ var endRel = coordinateRelationship(extent, end);
+
+ if (startRel === _Relationship.default.INTERSECTING || endRel === _Relationship.default.INTERSECTING) {
+ intersects = true;
+ } else {
+ var minX = extent[0];
+ var minY = extent[1];
+ var maxX = extent[2];
+ var maxY = extent[3];
+ var startX = start[0];
+ var startY = start[1];
+ var endX = end[0];
+ var endY = end[1];
+ var slope = (endY - startY) / (endX - startX);
+ var x = void 0,
+ y = void 0;
+
+ if (!!(endRel & _Relationship.default.ABOVE) && !(startRel & _Relationship.default.ABOVE)) {
+ // potentially intersects top
+ x = endX - (endY - maxY) / slope;
+ intersects = x >= minX && x <= maxX;
+ }
+
+ if (!intersects && !!(endRel & _Relationship.default.RIGHT) && !(startRel & _Relationship.default.RIGHT)) {
+ // potentially intersects right
+ y = endY - (endX - maxX) * slope;
+ intersects = y >= minY && y <= maxY;
+ }
+
+ if (!intersects && !!(endRel & _Relationship.default.BELOW) && !(startRel & _Relationship.default.BELOW)) {
+ // potentially intersects bottom
+ x = endX - (endY - minY) / slope;
+ intersects = x >= minX && x <= maxX;
+ }
+
+ if (!intersects && !!(endRel & _Relationship.default.LEFT) && !(startRel & _Relationship.default.LEFT)) {
+ // potentially intersects left
+ y = endY - (endX - minX) * slope;
+ intersects = y >= minY && y <= maxY;
+ }
+ }
+
+ return intersects;
+}
+/**
+ * Apply a transform function to the extent.
+ * @param {Extent} extent Extent.
+ * @param {import("./proj.js").TransformFunction} transformFn Transform function.
+ * Called with `[minX, minY, maxX, maxY]` extent coordinates.
+ * @param {Extent=} opt_extent Destination extent.
+ * @param {number=} opt_stops Number of stops per side used for the transform.
+ * By default only the corners are used.
+ * @return {Extent} Extent.
+ * @api
+ */
+
+
+function applyTransform(extent, transformFn, opt_extent, opt_stops) {
+ var coordinates = [];
+
+ if (opt_stops > 1) {
+ var width = extent[2] - extent[0];
+ var height = extent[3] - extent[1];
+
+ for (var i = 0; i < opt_stops; ++i) {
+ coordinates.push(extent[0] + width * i / opt_stops, extent[1], extent[2], extent[1] + height * i / opt_stops, extent[2] - width * i / opt_stops, extent[3], extent[0], extent[3] - height * i / opt_stops);
+ }
+ } else {
+ coordinates = [extent[0], extent[1], extent[2], extent[1], extent[2], extent[3], extent[0], extent[3]];
+ }
+
+ transformFn(coordinates, coordinates, 2);
+ var xs = [];
+ var ys = [];
+
+ for (var i = 0, l = coordinates.length; i < l; i += 2) {
+ xs.push(coordinates[i]);
+ ys.push(coordinates[i + 1]);
+ }
+
+ return _boundingExtentXYs(xs, ys, opt_extent);
+}
+/**
+ * Modifies the provided extent in-place to be within the real world
+ * extent.
+ *
+ * @param {Extent} extent Extent.
+ * @param {import("./proj/Projection.js").default} projection Projection
+ * @return {Extent} The extent within the real world extent.
+ */
+
+
+function wrapX(extent, projection) {
+ var projectionExtent = projection.getExtent();
+ var center = getCenter(extent);
+
+ if (projection.canWrapX() && (center[0] < projectionExtent[0] || center[0] >= projectionExtent[2])) {
+ var worldWidth = getWidth(projectionExtent);
+ var worldsAway = Math.floor((center[0] - projectionExtent[0]) / worldWidth);
+ var offset = worldsAway * worldWidth;
+ extent[0] -= offset;
+ extent[2] -= offset;
+ }
+
+ return extent;
+}
+},{"./extent/Corner.js":"../../../node_modules/ol/extent/Corner.js","./extent/Relationship.js":"../../../node_modules/ol/extent/Relationship.js","./asserts.js":"../../../node_modules/ol/asserts.js"}],"../../../node_modules/ol/proj/Projection.js":[function(require,module,exports) {
+var global = arguments[3];
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Units = require("./Units.js");
+
+/**
+ * @module ol/proj/Projection
+ */
+
+/**
+ * @typedef {Object} Options
+ * @property {string} code The SRS identifier code, e.g. `EPSG:4326`.
+ * @property {import("./Units.js").default|string} [units] Units. Required unless a
+ * proj4 projection is defined for `code`.
+ * @property {import("../extent.js").Extent} [extent] The validity extent for the SRS.
+ * @property {string} [axisOrientation='enu'] The axis orientation as specified in Proj4.
+ * @property {boolean} [global=false] Whether the projection is valid for the whole globe.
+ * @property {number} [metersPerUnit] The meters per unit for the SRS.
+ * If not provided, the `units` are used to get the meters per unit from the {@link module:ol/proj/Units~METERS_PER_UNIT}
+ * lookup table.
+ * @property {import("../extent.js").Extent} [worldExtent] The world extent for the SRS.
+ * @property {function(number, import("../coordinate.js").Coordinate):number} [getPointResolution]
+ * Function to determine resolution at a point. The function is called with a
+ * `{number}` view resolution and an `{import("../coordinate.js").Coordinate}` as arguments, and returns
+ * the `{number}` resolution in projection units at the passed coordinate. If this is `undefined`,
+ * the default {@link module:ol/proj#getPointResolution} function will be used.
+ */
+
+/**
+ * @classdesc
+ * Projection definition class. One of these is created for each projection
+ * supported in the application and stored in the {@link module:ol/proj} namespace.
+ * You can use these in applications, but this is not required, as API params
+ * and options use {@link module:ol/proj~ProjectionLike} which means the simple string
+ * code will suffice.
+ *
+ * You can use {@link module:ol/proj~get} to retrieve the object for a particular
+ * projection.
+ *
+ * The library includes definitions for `EPSG:4326` and `EPSG:3857`, together
+ * with the following aliases:
+ * * `EPSG:4326`: CRS:84, urn:ogc:def:crs:EPSG:6.6:4326,
+ * urn:ogc:def:crs:OGC:1.3:CRS84, urn:ogc:def:crs:OGC:2:84,
+ * http://www.opengis.net/gml/srs/epsg.xml#4326,
+ * urn:x-ogc:def:crs:EPSG:4326
+ * * `EPSG:3857`: EPSG:102100, EPSG:102113, EPSG:900913,
+ * urn:ogc:def:crs:EPSG:6.18:3:3857,
+ * http://www.opengis.net/gml/srs/epsg.xml#3857
+ *
+ * If you use [proj4js](https://github.com/proj4js/proj4js), aliases can
+ * be added using `proj4.defs()`. After all required projection definitions are
+ * added, call the {@link module:ol/proj/proj4~register} function.
+ *
+ * @api
+ */
+var Projection =
+/** @class */
+function () {
+ /**
+ * @param {Options} options Projection options.
+ */
+ function Projection(options) {
+ /**
+ * @private
+ * @type {string}
+ */
+ this.code_ = options.code;
+ /**
+ * Units of projected coordinates. When set to `TILE_PIXELS`, a
+ * `this.extent_` and `this.worldExtent_` must be configured properly for each
+ * tile.
+ * @private
+ * @type {import("./Units.js").default}
+ */
+
+ this.units_ =
+ /** @type {import("./Units.js").default} */
+ options.units;
+ /**
+ * Validity extent of the projection in projected coordinates. For projections
+ * with `TILE_PIXELS` units, this is the extent of the tile in
+ * tile pixel space.
+ * @private
+ * @type {import("../extent.js").Extent}
+ */
+
+ this.extent_ = options.extent !== undefined ? options.extent : null;
+ /**
+ * Extent of the world in EPSG:4326. For projections with
+ * `TILE_PIXELS` units, this is the extent of the tile in
+ * projected coordinate space.
+ * @private
+ * @type {import("../extent.js").Extent}
+ */
+
+ this.worldExtent_ = options.worldExtent !== undefined ? options.worldExtent : null;
+ /**
+ * @private
+ * @type {string}
+ */
+
+ this.axisOrientation_ = options.axisOrientation !== undefined ? options.axisOrientation : 'enu';
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ this.global_ = options.global !== undefined ? options.global : false;
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ this.canWrapX_ = !!(this.global_ && this.extent_);
+ /**
+ * @private
+ * @type {function(number, import("../coordinate.js").Coordinate):number|undefined}
+ */
+
+ this.getPointResolutionFunc_ = options.getPointResolution;
+ /**
+ * @private
+ * @type {import("../tilegrid/TileGrid.js").default}
+ */
+
+ this.defaultTileGrid_ = null;
+ /**
+ * @private
+ * @type {number|undefined}
+ */
+
+ this.metersPerUnit_ = options.metersPerUnit;
+ }
+ /**
+ * @return {boolean} The projection is suitable for wrapping the x-axis
+ */
+
+
+ Projection.prototype.canWrapX = function () {
+ return this.canWrapX_;
+ };
+ /**
+ * Get the code for this projection, e.g. 'EPSG:4326'.
+ * @return {string} Code.
+ * @api
+ */
+
+
+ Projection.prototype.getCode = function () {
+ return this.code_;
+ };
+ /**
+ * Get the validity extent for this projection.
+ * @return {import("../extent.js").Extent} Extent.
+ * @api
+ */
+
+
+ Projection.prototype.getExtent = function () {
+ return this.extent_;
+ };
+ /**
+ * Get the units of this projection.
+ * @return {import("./Units.js").default} Units.
+ * @api
+ */
+
+
+ Projection.prototype.getUnits = function () {
+ return this.units_;
+ };
+ /**
+ * Get the amount of meters per unit of this projection. If the projection is
+ * not configured with `metersPerUnit` or a units identifier, the return is
+ * `undefined`.
+ * @return {number|undefined} Meters.
+ * @api
+ */
+
+
+ Projection.prototype.getMetersPerUnit = function () {
+ return this.metersPerUnit_ || _Units.METERS_PER_UNIT[this.units_];
+ };
+ /**
+ * Get the world extent for this projection.
+ * @return {import("../extent.js").Extent} Extent.
+ * @api
+ */
+
+
+ Projection.prototype.getWorldExtent = function () {
+ return this.worldExtent_;
+ };
+ /**
+ * Get the axis orientation of this projection.
+ * Example values are:
+ * enu - the default easting, northing, elevation.
+ * neu - northing, easting, up - useful for "lat/long" geographic coordinates,
+ * or south orientated transverse mercator.
+ * wnu - westing, northing, up - some planetary coordinate systems have
+ * "west positive" coordinate systems
+ * @return {string} Axis orientation.
+ * @api
+ */
+
+
+ Projection.prototype.getAxisOrientation = function () {
+ return this.axisOrientation_;
+ };
+ /**
+ * Is this projection a global projection which spans the whole world?
+ * @return {boolean} Whether the projection is global.
+ * @api
+ */
+
+
+ Projection.prototype.isGlobal = function () {
+ return this.global_;
+ };
+ /**
+ * Set if the projection is a global projection which spans the whole world
+ * @param {boolean} global Whether the projection is global.
+ * @api
+ */
+
+
+ Projection.prototype.setGlobal = function (global) {
+ this.global_ = global;
+ this.canWrapX_ = !!(global && this.extent_);
+ };
+ /**
+ * @return {import("../tilegrid/TileGrid.js").default} The default tile grid.
+ */
+
+
+ Projection.prototype.getDefaultTileGrid = function () {
+ return this.defaultTileGrid_;
+ };
+ /**
+ * @param {import("../tilegrid/TileGrid.js").default} tileGrid The default tile grid.
+ */
+
+
+ Projection.prototype.setDefaultTileGrid = function (tileGrid) {
+ this.defaultTileGrid_ = tileGrid;
+ };
+ /**
+ * Set the validity extent for this projection.
+ * @param {import("../extent.js").Extent} extent Extent.
+ * @api
+ */
+
+
+ Projection.prototype.setExtent = function (extent) {
+ this.extent_ = extent;
+ this.canWrapX_ = !!(this.global_ && extent);
+ };
+ /**
+ * Set the world extent for this projection.
+ * @param {import("../extent.js").Extent} worldExtent World extent
+ * [minlon, minlat, maxlon, maxlat].
+ * @api
+ */
+
+
+ Projection.prototype.setWorldExtent = function (worldExtent) {
+ this.worldExtent_ = worldExtent;
+ };
+ /**
+ * Set the getPointResolution function (see {@link module:ol/proj~getPointResolution}
+ * for this projection.
+ * @param {function(number, import("../coordinate.js").Coordinate):number} func Function
+ * @api
+ */
+
+
+ Projection.prototype.setGetPointResolution = function (func) {
+ this.getPointResolutionFunc_ = func;
+ };
+ /**
+ * Get the custom point resolution function for this projection (if set).
+ * @return {function(number, import("../coordinate.js").Coordinate):number|undefined} The custom point
+ * resolution function (if set).
+ */
+
+
+ Projection.prototype.getPointResolutionFunc = function () {
+ return this.getPointResolutionFunc_;
+ };
+
+ return Projection;
+}();
+
+var _default = Projection;
+exports.default = _default;
+},{"./Units.js":"../../../node_modules/ol/proj/Units.js"}],"../../../node_modules/ol/math.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.clamp = clamp;
+exports.squaredSegmentDistance = squaredSegmentDistance;
+exports.squaredDistance = squaredDistance;
+exports.solveLinearSystem = solveLinearSystem;
+exports.toDegrees = toDegrees;
+exports.toRadians = toRadians;
+exports.modulo = modulo;
+exports.lerp = lerp;
+exports.log2 = exports.cosh = void 0;
+
+/**
+ * @module ol/math
+ */
+
+/**
+ * Takes a number and clamps it to within the provided bounds.
+ * @param {number} value The input number.
+ * @param {number} min The minimum value to return.
+ * @param {number} max The maximum value to return.
+ * @return {number} The input number if it is within bounds, or the nearest
+ * number within the bounds.
+ */
+function clamp(value, min, max) {
+ return Math.min(Math.max(value, min), max);
+}
+/**
+ * Return the hyperbolic cosine of a given number. The method will use the
+ * native `Math.cosh` function if it is available, otherwise the hyperbolic
+ * cosine will be calculated via the reference implementation of the Mozilla
+ * developer network.
+ *
+ * @param {number} x X.
+ * @return {number} Hyperbolic cosine of x.
+ */
+
+
+var cosh = function () {
+ // Wrapped in a iife, to save the overhead of checking for the native
+ // implementation on every invocation.
+ var cosh;
+
+ if ('cosh' in Math) {
+ // The environment supports the native Math.cosh function, use it…
+ cosh = Math.cosh;
+ } else {
+ // … else, use the reference implementation of MDN:
+ cosh = function (x) {
+ var y =
+ /** @type {Math} */
+ Math.exp(x);
+ return (y + 1 / y) / 2;
+ };
+ }
+
+ return cosh;
+}();
+/**
+ * Return the base 2 logarithm of a given number. The method will use the
+ * native `Math.log2` function if it is available, otherwise the base 2
+ * logarithm will be calculated via the reference implementation of the
+ * Mozilla developer network.
+ *
+ * @param {number} x X.
+ * @return {number} Base 2 logarithm of x.
+ */
+
+
+exports.cosh = cosh;
+
+var log2 = function () {
+ // Wrapped in a iife, to save the overhead of checking for the native
+ // implementation on every invocation.
+ var log2;
+
+ if ('log2' in Math) {
+ // The environment supports the native Math.log2 function, use it…
+ log2 = Math.log2;
+ } else {
+ // … else, use the reference implementation of MDN:
+ log2 = function (x) {
+ return Math.log(x) * Math.LOG2E;
+ };
+ }
+
+ return log2;
+}();
+/**
+ * Returns the square of the closest distance between the point (x, y) and the
+ * line segment (x1, y1) to (x2, y2).
+ * @param {number} x X.
+ * @param {number} y Y.
+ * @param {number} x1 X1.
+ * @param {number} y1 Y1.
+ * @param {number} x2 X2.
+ * @param {number} y2 Y2.
+ * @return {number} Squared distance.
+ */
+
+
+exports.log2 = log2;
+
+function squaredSegmentDistance(x, y, x1, y1, x2, y2) {
+ var dx = x2 - x1;
+ var dy = y2 - y1;
+
+ if (dx !== 0 || dy !== 0) {
+ var t = ((x - x1) * dx + (y - y1) * dy) / (dx * dx + dy * dy);
+
+ if (t > 1) {
+ x1 = x2;
+ y1 = y2;
+ } else if (t > 0) {
+ x1 += dx * t;
+ y1 += dy * t;
+ }
+ }
+
+ return squaredDistance(x, y, x1, y1);
+}
+/**
+ * Returns the square of the distance between the points (x1, y1) and (x2, y2).
+ * @param {number} x1 X1.
+ * @param {number} y1 Y1.
+ * @param {number} x2 X2.
+ * @param {number} y2 Y2.
+ * @return {number} Squared distance.
+ */
+
+
+function squaredDistance(x1, y1, x2, y2) {
+ var dx = x2 - x1;
+ var dy = y2 - y1;
+ return dx * dx + dy * dy;
+}
+/**
+ * Solves system of linear equations using Gaussian elimination method.
+ *
+ * @param {Array<Array<number>>} mat Augmented matrix (n x n + 1 column)
+ * in row-major order.
+ * @return {Array<number>} The resulting vector.
+ */
+
+
+function solveLinearSystem(mat) {
+ var n = mat.length;
+
+ for (var i = 0; i < n; i++) {
+ // Find max in the i-th column (ignoring i - 1 first rows)
+ var maxRow = i;
+ var maxEl = Math.abs(mat[i][i]);
+
+ for (var r = i + 1; r < n; r++) {
+ var absValue = Math.abs(mat[r][i]);
+
+ if (absValue > maxEl) {
+ maxEl = absValue;
+ maxRow = r;
+ }
+ }
+
+ if (maxEl === 0) {
+ return null; // matrix is singular
+ } // Swap max row with i-th (current) row
+
+
+ var tmp = mat[maxRow];
+ mat[maxRow] = mat[i];
+ mat[i] = tmp; // Subtract the i-th row to make all the remaining rows 0 in the i-th column
+
+ for (var j = i + 1; j < n; j++) {
+ var coef = -mat[j][i] / mat[i][i];
+
+ for (var k = i; k < n + 1; k++) {
+ if (i == k) {
+ mat[j][k] = 0;
+ } else {
+ mat[j][k] += coef * mat[i][k];
+ }
+ }
+ }
+ } // Solve Ax=b for upper triangular matrix A (mat)
+
+
+ var x = new Array(n);
+
+ for (var l = n - 1; l >= 0; l--) {
+ x[l] = mat[l][n] / mat[l][l];
+
+ for (var m = l - 1; m >= 0; m--) {
+ mat[m][n] -= mat[m][l] * x[l];
+ }
+ }
+
+ return x;
+}
+/**
+ * Converts radians to to degrees.
+ *
+ * @param {number} angleInRadians Angle in radians.
+ * @return {number} Angle in degrees.
+ */
+
+
+function toDegrees(angleInRadians) {
+ return angleInRadians * 180 / Math.PI;
+}
+/**
+ * Converts degrees to radians.
+ *
+ * @param {number} angleInDegrees Angle in degrees.
+ * @return {number} Angle in radians.
+ */
+
+
+function toRadians(angleInDegrees) {
+ return angleInDegrees * Math.PI / 180;
+}
+/**
+ * Returns the modulo of a / b, depending on the sign of b.
+ *
+ * @param {number} a Dividend.
+ * @param {number} b Divisor.
+ * @return {number} Modulo.
+ */
+
+
+function modulo(a, b) {
+ var r = a % b;
+ return r * b < 0 ? r + b : r;
+}
+/**
+ * Calculates the linearly interpolated value of x between a and b.
+ *
+ * @param {number} a Number
+ * @param {number} b Number
+ * @param {number} x Value to be interpolated.
+ * @return {number} Interpolated value.
+ */
+
+
+function lerp(a, b, x) {
+ return a + x * (b - a);
+}
+},{}],"../../../node_modules/ol/proj/epsg3857.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.fromEPSG4326 = fromEPSG4326;
+exports.toEPSG4326 = toEPSG4326;
+exports.PROJECTIONS = exports.WORLD_EXTENT = exports.EXTENT = exports.HALF_SIZE = exports.RADIUS = void 0;
+
+var _Projection = _interopRequireDefault(require("./Projection.js"));
+
+var _Units = _interopRequireDefault(require("./Units.js"));
+
+var _math = require("../math.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/proj/epsg3857
+ */
+
+
+/**
+ * Radius of WGS84 sphere
+ *
+ * @const
+ * @type {number}
+ */
+var RADIUS = 6378137;
+/**
+ * @const
+ * @type {number}
+ */
+
+exports.RADIUS = RADIUS;
+var HALF_SIZE = Math.PI * RADIUS;
+/**
+ * @const
+ * @type {import("../extent.js").Extent}
+ */
+
+exports.HALF_SIZE = HALF_SIZE;
+var EXTENT = [-HALF_SIZE, -HALF_SIZE, HALF_SIZE, HALF_SIZE];
+/**
+ * @const
+ * @type {import("../extent.js").Extent}
+ */
+
+exports.EXTENT = EXTENT;
+var WORLD_EXTENT = [-180, -85, 180, 85];
+/**
+ * @classdesc
+ * Projection object for web/spherical Mercator (EPSG:3857).
+ */
+
+exports.WORLD_EXTENT = WORLD_EXTENT;
+
+var EPSG3857Projection =
+/** @class */
+function (_super) {
+ __extends(EPSG3857Projection, _super);
+ /**
+ * @param {string} code Code.
+ */
+
+
+ function EPSG3857Projection(code) {
+ return _super.call(this, {
+ code: code,
+ units: _Units.default.METERS,
+ extent: EXTENT,
+ global: true,
+ worldExtent: WORLD_EXTENT,
+ getPointResolution: function (resolution, point) {
+ return resolution / (0, _math.cosh)(point[1] / RADIUS);
+ }
+ }) || this;
+ }
+
+ return EPSG3857Projection;
+}(_Projection.default);
+/**
+ * Projections equal to EPSG:3857.
+ *
+ * @const
+ * @type {Array<import("./Projection.js").default>}
+ */
+
+
+var PROJECTIONS = [new EPSG3857Projection('EPSG:3857'), new EPSG3857Projection('EPSG:102100'), new EPSG3857Projection('EPSG:102113'), new EPSG3857Projection('EPSG:900913'), new EPSG3857Projection('urn:ogc:def:crs:EPSG:6.18:3:3857'), new EPSG3857Projection('urn:ogc:def:crs:EPSG::3857'), new EPSG3857Projection('http://www.opengis.net/gml/srs/epsg.xml#3857')];
+/**
+ * Transformation from EPSG:4326 to EPSG:3857.
+ *
+ * @param {Array<number>} input Input array of coordinate values.
+ * @param {Array<number>=} opt_output Output array of coordinate values.
+ * @param {number=} opt_dimension Dimension (default is `2`).
+ * @return {Array<number>} Output array of coordinate values.
+ */
+
+exports.PROJECTIONS = PROJECTIONS;
+
+function fromEPSG4326(input, opt_output, opt_dimension) {
+ var length = input.length;
+ var dimension = opt_dimension > 1 ? opt_dimension : 2;
+ var output = opt_output;
+
+ if (output === undefined) {
+ if (dimension > 2) {
+ // preserve values beyond second dimension
+ output = input.slice();
+ } else {
+ output = new Array(length);
+ }
+ }
+
+ var halfSize = HALF_SIZE;
+
+ for (var i = 0; i < length; i += dimension) {
+ output[i] = halfSize * input[i] / 180;
+ var y = RADIUS * Math.log(Math.tan(Math.PI * (+input[i + 1] + 90) / 360));
+
+ if (y > halfSize) {
+ y = halfSize;
+ } else if (y < -halfSize) {
+ y = -halfSize;
+ }
+
+ output[i + 1] = y;
+ }
+
+ return output;
+}
+/**
+ * Transformation from EPSG:3857 to EPSG:4326.
+ *
+ * @param {Array<number>} input Input array of coordinate values.
+ * @param {Array<number>=} opt_output Output array of coordinate values.
+ * @param {number=} opt_dimension Dimension (default is `2`).
+ * @return {Array<number>} Output array of coordinate values.
+ */
+
+
+function toEPSG4326(input, opt_output, opt_dimension) {
+ var length = input.length;
+ var dimension = opt_dimension > 1 ? opt_dimension : 2;
+ var output = opt_output;
+
+ if (output === undefined) {
+ if (dimension > 2) {
+ // preserve values beyond second dimension
+ output = input.slice();
+ } else {
+ output = new Array(length);
+ }
+ }
+
+ for (var i = 0; i < length; i += dimension) {
+ output[i] = 180 * input[i] / HALF_SIZE;
+ output[i + 1] = 360 * Math.atan(Math.exp(input[i + 1] / RADIUS)) / Math.PI - 90;
+ }
+
+ return output;
+}
+},{"./Projection.js":"../../../node_modules/ol/proj/Projection.js","./Units.js":"../../../node_modules/ol/proj/Units.js","../math.js":"../../../node_modules/ol/math.js"}],"../../../node_modules/ol/proj/epsg4326.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.PROJECTIONS = exports.METERS_PER_UNIT = exports.EXTENT = exports.RADIUS = void 0;
+
+var _Projection = _interopRequireDefault(require("./Projection.js"));
+
+var _Units = _interopRequireDefault(require("./Units.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/proj/epsg4326
+ */
+
+
+/**
+ * Semi-major radius of the WGS84 ellipsoid.
+ *
+ * @const
+ * @type {number}
+ */
+var RADIUS = 6378137;
+/**
+ * Extent of the EPSG:4326 projection which is the whole world.
+ *
+ * @const
+ * @type {import("../extent.js").Extent}
+ */
+
+exports.RADIUS = RADIUS;
+var EXTENT = [-180, -90, 180, 90];
+/**
+ * @const
+ * @type {number}
+ */
+
+exports.EXTENT = EXTENT;
+var METERS_PER_UNIT = Math.PI * RADIUS / 180;
+/**
+ * @classdesc
+ * Projection object for WGS84 geographic coordinates (EPSG:4326).
+ *
+ * Note that OpenLayers does not strictly comply with the EPSG definition.
+ * The EPSG registry defines 4326 as a CRS for Latitude,Longitude (y,x).
+ * OpenLayers treats EPSG:4326 as a pseudo-projection, with x,y coordinates.
+ */
+
+exports.METERS_PER_UNIT = METERS_PER_UNIT;
+
+var EPSG4326Projection =
+/** @class */
+function (_super) {
+ __extends(EPSG4326Projection, _super);
+ /**
+ * @param {string} code Code.
+ * @param {string=} opt_axisOrientation Axis orientation.
+ */
+
+
+ function EPSG4326Projection(code, opt_axisOrientation) {
+ return _super.call(this, {
+ code: code,
+ units: _Units.default.DEGREES,
+ extent: EXTENT,
+ axisOrientation: opt_axisOrientation,
+ global: true,
+ metersPerUnit: METERS_PER_UNIT,
+ worldExtent: EXTENT
+ }) || this;
+ }
+
+ return EPSG4326Projection;
+}(_Projection.default);
+/**
+ * Projections equal to EPSG:4326.
+ *
+ * @const
+ * @type {Array<import("./Projection.js").default>}
+ */
+
+
+var PROJECTIONS = [new EPSG4326Projection('CRS:84'), new EPSG4326Projection('EPSG:4326', 'neu'), new EPSG4326Projection('urn:ogc:def:crs:EPSG::4326', 'neu'), new EPSG4326Projection('urn:ogc:def:crs:EPSG:6.6:4326', 'neu'), new EPSG4326Projection('urn:ogc:def:crs:OGC:1.3:CRS84'), new EPSG4326Projection('urn:ogc:def:crs:OGC:2:84'), new EPSG4326Projection('http://www.opengis.net/gml/srs/epsg.xml#4326', 'neu'), new EPSG4326Projection('urn:x-ogc:def:crs:EPSG:4326', 'neu')];
+exports.PROJECTIONS = PROJECTIONS;
+},{"./Projection.js":"../../../node_modules/ol/proj/Projection.js","./Units.js":"../../../node_modules/ol/proj/Units.js"}],"../../../node_modules/ol/proj/projections.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.clear = clear;
+exports.get = get;
+exports.add = add;
+
+/**
+ * @module ol/proj/projections
+ */
+
+/**
+ * @type {Object<string, import("./Projection.js").default>}
+ */
+var cache = {};
+/**
+ * Clear the projections cache.
+ */
+
+function clear() {
+ cache = {};
+}
+/**
+ * Get a cached projection by code.
+ * @param {string} code The code for the projection.
+ * @return {import("./Projection.js").default} The projection (if cached).
+ */
+
+
+function get(code) {
+ return cache[code] || null;
+}
+/**
+ * Add a projection to the cache.
+ * @param {string} code The projection code.
+ * @param {import("./Projection.js").default} projection The projection to cache.
+ */
+
+
+function add(code, projection) {
+ cache[code] = projection;
+}
+},{}],"../../../node_modules/ol/proj/transforms.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.clear = clear;
+exports.add = add;
+exports.remove = remove;
+exports.get = get;
+
+var _obj = require("../obj.js");
+
+/**
+ * @module ol/proj/transforms
+ */
+
+/**
+ * @private
+ * @type {!Object<string, Object<string, import("../proj.js").TransformFunction>>}
+ */
+var transforms = {};
+/**
+ * Clear the transform cache.
+ */
+
+function clear() {
+ transforms = {};
+}
+/**
+ * Registers a conversion function to convert coordinates from the source
+ * projection to the destination projection.
+ *
+ * @param {import("./Projection.js").default} source Source.
+ * @param {import("./Projection.js").default} destination Destination.
+ * @param {import("../proj.js").TransformFunction} transformFn Transform.
+ */
+
+
+function add(source, destination, transformFn) {
+ var sourceCode = source.getCode();
+ var destinationCode = destination.getCode();
+
+ if (!(sourceCode in transforms)) {
+ transforms[sourceCode] = {};
+ }
+
+ transforms[sourceCode][destinationCode] = transformFn;
+}
+/**
+ * Unregisters the conversion function to convert coordinates from the source
+ * projection to the destination projection. This method is used to clean up
+ * cached transforms during testing.
+ *
+ * @param {import("./Projection.js").default} source Source projection.
+ * @param {import("./Projection.js").default} destination Destination projection.
+ * @return {import("../proj.js").TransformFunction} transformFn The unregistered transform.
+ */
+
+
+function remove(source, destination) {
+ var sourceCode = source.getCode();
+ var destinationCode = destination.getCode();
+ var transform = transforms[sourceCode][destinationCode];
+ delete transforms[sourceCode][destinationCode];
+
+ if ((0, _obj.isEmpty)(transforms[sourceCode])) {
+ delete transforms[sourceCode];
+ }
+
+ return transform;
+}
+/**
+ * Get a transform given a source code and a destination code.
+ * @param {string} sourceCode The code for the source projection.
+ * @param {string} destinationCode The code for the destination projection.
+ * @return {import("../proj.js").TransformFunction|undefined} The transform function (if found).
+ */
+
+
+function get(sourceCode, destinationCode) {
+ var transform;
+
+ if (sourceCode in transforms && destinationCode in transforms[sourceCode]) {
+ transform = transforms[sourceCode][destinationCode];
+ }
+
+ return transform;
+}
+},{"../obj.js":"../../../node_modules/ol/obj.js"}],"../../../node_modules/ol/sphere.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.getDistance = getDistance;
+exports.getLength = getLength;
+exports.getArea = getArea;
+exports.offset = offset;
+exports.DEFAULT_RADIUS = void 0;
+
+var _GeometryType = _interopRequireDefault(require("./geom/GeometryType.js"));
+
+var _math = require("./math.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module ol/sphere
+ */
+
+/**
+ * Object literal with options for the {@link getLength} or {@link getArea}
+ * functions.
+ * @typedef {Object} SphereMetricOptions
+ * @property {import("./proj.js").ProjectionLike} [projection='EPSG:3857']
+ * Projection of the geometry. By default, the geometry is assumed to be in
+ * Web Mercator.
+ * @property {number} [radius=6371008.8] Sphere radius. By default, the
+ * [mean Earth radius](https://en.wikipedia.org/wiki/Earth_radius#Mean_radius)
+ * for the WGS84 ellipsoid is used.
+ */
+
+/**
+ * The mean Earth radius (1/3 * (2a + b)) for the WGS84 ellipsoid.
+ * https://en.wikipedia.org/wiki/Earth_radius#Mean_radius
+ * @type {number}
+ */
+var DEFAULT_RADIUS = 6371008.8;
+/**
+ * Get the great circle distance (in meters) between two geographic coordinates.
+ * @param {Array} c1 Starting coordinate.
+ * @param {Array} c2 Ending coordinate.
+ * @param {number=} opt_radius The sphere radius to use. Defaults to the Earth's
+ * mean radius using the WGS84 ellipsoid.
+ * @return {number} The great circle distance between the points (in meters).
+ * @api
+ */
+
+exports.DEFAULT_RADIUS = DEFAULT_RADIUS;
+
+function getDistance(c1, c2, opt_radius) {
+ var radius = opt_radius || DEFAULT_RADIUS;
+ var lat1 = (0, _math.toRadians)(c1[1]);
+ var lat2 = (0, _math.toRadians)(c2[1]);
+ var deltaLatBy2 = (lat2 - lat1) / 2;
+ var deltaLonBy2 = (0, _math.toRadians)(c2[0] - c1[0]) / 2;
+ var a = Math.sin(deltaLatBy2) * Math.sin(deltaLatBy2) + Math.sin(deltaLonBy2) * Math.sin(deltaLonBy2) * Math.cos(lat1) * Math.cos(lat2);
+ return 2 * radius * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
+}
+/**
+ * Get the cumulative great circle length of linestring coordinates (geographic).
+ * @param {Array} coordinates Linestring coordinates.
+ * @param {number} radius The sphere radius to use.
+ * @return {number} The length (in meters).
+ */
+
+
+function getLengthInternal(coordinates, radius) {
+ var length = 0;
+
+ for (var i = 0, ii = coordinates.length; i < ii - 1; ++i) {
+ length += getDistance(coordinates[i], coordinates[i + 1], radius);
+ }
+
+ return length;
+}
+/**
+ * Get the spherical length of a geometry. This length is the sum of the
+ * great circle distances between coordinates. For polygons, the length is
+ * the sum of all rings. For points, the length is zero. For multi-part
+ * geometries, the length is the sum of the length of each part.
+ * @param {import("./geom/Geometry.js").default} geometry A geometry.
+ * @param {SphereMetricOptions=} opt_options Options for the
+ * length calculation. By default, geometries are assumed to be in 'EPSG:3857'.
+ * You can change this by providing a `projection` option.
+ * @return {number} The spherical length (in meters).
+ * @api
+ */
+
+
+function getLength(geometry, opt_options) {
+ var options = opt_options || {};
+ var radius = options.radius || DEFAULT_RADIUS;
+ var projection = options.projection || 'EPSG:3857';
+ var type = geometry.getType();
+
+ if (type !== _GeometryType.default.GEOMETRY_COLLECTION) {
+ geometry = geometry.clone().transform(projection, 'EPSG:4326');
+ }
+
+ var length = 0;
+ var coordinates, coords, i, ii, j, jj;
+
+ switch (type) {
+ case _GeometryType.default.POINT:
+ case _GeometryType.default.MULTI_POINT:
+ {
+ break;
+ }
+
+ case _GeometryType.default.LINE_STRING:
+ case _GeometryType.default.LINEAR_RING:
+ {
+ coordinates =
+ /** @type {import("./geom/SimpleGeometry.js").default} */
+ geometry.getCoordinates();
+ length = getLengthInternal(coordinates, radius);
+ break;
+ }
+
+ case _GeometryType.default.MULTI_LINE_STRING:
+ case _GeometryType.default.POLYGON:
+ {
+ coordinates =
+ /** @type {import("./geom/SimpleGeometry.js").default} */
+ geometry.getCoordinates();
+
+ for (i = 0, ii = coordinates.length; i < ii; ++i) {
+ length += getLengthInternal(coordinates[i], radius);
+ }
+
+ break;
+ }
+
+ case _GeometryType.default.MULTI_POLYGON:
+ {
+ coordinates =
+ /** @type {import("./geom/SimpleGeometry.js").default} */
+ geometry.getCoordinates();
+
+ for (i = 0, ii = coordinates.length; i < ii; ++i) {
+ coords = coordinates[i];
+
+ for (j = 0, jj = coords.length; j < jj; ++j) {
+ length += getLengthInternal(coords[j], radius);
+ }
+ }
+
+ break;
+ }
+
+ case _GeometryType.default.GEOMETRY_COLLECTION:
+ {
+ var geometries =
+ /** @type {import("./geom/GeometryCollection.js").default} */
+ geometry.getGeometries();
+
+ for (i = 0, ii = geometries.length; i < ii; ++i) {
+ length += getLength(geometries[i], opt_options);
+ }
+
+ break;
+ }
+
+ default:
+ {
+ throw new Error('Unsupported geometry type: ' + type);
+ }
+ }
+
+ return length;
+}
+/**
+ * Returns the spherical area for a list of coordinates.
+ *
+ * [Reference](https://trs-new.jpl.nasa.gov/handle/2014/40409)
+ * Robert. G. Chamberlain and William H. Duquette, "Some Algorithms for
+ * Polygons on a Sphere", JPL Publication 07-03, Jet Propulsion
+ * Laboratory, Pasadena, CA, June 2007
+ *
+ * @param {Array<import("./coordinate.js").Coordinate>} coordinates List of coordinates of a linear
+ * ring. If the ring is oriented clockwise, the area will be positive,
+ * otherwise it will be negative.
+ * @param {number} radius The sphere radius.
+ * @return {number} Area (in square meters).
+ */
+
+
+function getAreaInternal(coordinates, radius) {
+ var area = 0;
+ var len = coordinates.length;
+ var x1 = coordinates[len - 1][0];
+ var y1 = coordinates[len - 1][1];
+
+ for (var i = 0; i < len; i++) {
+ var x2 = coordinates[i][0];
+ var y2 = coordinates[i][1];
+ area += (0, _math.toRadians)(x2 - x1) * (2 + Math.sin((0, _math.toRadians)(y1)) + Math.sin((0, _math.toRadians)(y2)));
+ x1 = x2;
+ y1 = y2;
+ }
+
+ return area * radius * radius / 2.0;
+}
+/**
+ * Get the spherical area of a geometry. This is the area (in meters) assuming
+ * that polygon edges are segments of great circles on a sphere.
+ * @param {import("./geom/Geometry.js").default} geometry A geometry.
+ * @param {SphereMetricOptions=} opt_options Options for the area
+ * calculation. By default, geometries are assumed to be in 'EPSG:3857'.
+ * You can change this by providing a `projection` option.
+ * @return {number} The spherical area (in square meters).
+ * @api
+ */
+
+
+function getArea(geometry, opt_options) {
+ var options = opt_options || {};
+ var radius = options.radius || DEFAULT_RADIUS;
+ var projection = options.projection || 'EPSG:3857';
+ var type = geometry.getType();
+
+ if (type !== _GeometryType.default.GEOMETRY_COLLECTION) {
+ geometry = geometry.clone().transform(projection, 'EPSG:4326');
+ }
+
+ var area = 0;
+ var coordinates, coords, i, ii, j, jj;
+
+ switch (type) {
+ case _GeometryType.default.POINT:
+ case _GeometryType.default.MULTI_POINT:
+ case _GeometryType.default.LINE_STRING:
+ case _GeometryType.default.MULTI_LINE_STRING:
+ case _GeometryType.default.LINEAR_RING:
+ {
+ break;
+ }
+
+ case _GeometryType.default.POLYGON:
+ {
+ coordinates =
+ /** @type {import("./geom/Polygon.js").default} */
+ geometry.getCoordinates();
+ area = Math.abs(getAreaInternal(coordinates[0], radius));
+
+ for (i = 1, ii = coordinates.length; i < ii; ++i) {
+ area -= Math.abs(getAreaInternal(coordinates[i], radius));
+ }
+
+ break;
+ }
+
+ case _GeometryType.default.MULTI_POLYGON:
+ {
+ coordinates =
+ /** @type {import("./geom/SimpleGeometry.js").default} */
+ geometry.getCoordinates();
+
+ for (i = 0, ii = coordinates.length; i < ii; ++i) {
+ coords = coordinates[i];
+ area += Math.abs(getAreaInternal(coords[0], radius));
+
+ for (j = 1, jj = coords.length; j < jj; ++j) {
+ area -= Math.abs(getAreaInternal(coords[j], radius));
+ }
+ }
+
+ break;
+ }
+
+ case _GeometryType.default.GEOMETRY_COLLECTION:
+ {
+ var geometries =
+ /** @type {import("./geom/GeometryCollection.js").default} */
+ geometry.getGeometries();
+
+ for (i = 0, ii = geometries.length; i < ii; ++i) {
+ area += getArea(geometries[i], opt_options);
+ }
+
+ break;
+ }
+
+ default:
+ {
+ throw new Error('Unsupported geometry type: ' + type);
+ }
+ }
+
+ return area;
+}
+/**
+ * Returns the coordinate at the given distance and bearing from `c1`.
+ *
+ * @param {import("./coordinate.js").Coordinate} c1 The origin point (`[lon, lat]` in degrees).
+ * @param {number} distance The great-circle distance between the origin
+ * point and the target point.
+ * @param {number} bearing The bearing (in radians).
+ * @param {number=} opt_radius The sphere radius to use. Defaults to the Earth's
+ * mean radius using the WGS84 ellipsoid.
+ * @return {import("./coordinate.js").Coordinate} The target point.
+ */
+
+
+function offset(c1, distance, bearing, opt_radius) {
+ var radius = opt_radius || DEFAULT_RADIUS;
+ var lat1 = (0, _math.toRadians)(c1[1]);
+ var lon1 = (0, _math.toRadians)(c1[0]);
+ var dByR = distance / radius;
+ var lat = Math.asin(Math.sin(lat1) * Math.cos(dByR) + Math.cos(lat1) * Math.sin(dByR) * Math.cos(bearing));
+ var lon = lon1 + Math.atan2(Math.sin(bearing) * Math.sin(dByR) * Math.cos(lat1), Math.cos(dByR) - Math.sin(lat1) * Math.sin(lat));
+ return [(0, _math.toDegrees)(lon), (0, _math.toDegrees)(lat)];
+}
+},{"./geom/GeometryType.js":"../../../node_modules/ol/geom/GeometryType.js","./math.js":"../../../node_modules/ol/math.js"}],"../../../node_modules/ol/string.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.padNumber = padNumber;
+exports.compareVersions = compareVersions;
+
+/**
+ * @module ol/string
+ */
+
+/**
+ * @param {number} number Number to be formatted
+ * @param {number} width The desired width
+ * @param {number=} opt_precision Precision of the output string (i.e. number of decimal places)
+ * @returns {string} Formatted string
+ */
+function padNumber(number, width, opt_precision) {
+ var numberString = opt_precision !== undefined ? number.toFixed(opt_precision) : '' + number;
+ var decimal = numberString.indexOf('.');
+ decimal = decimal === -1 ? numberString.length : decimal;
+ return decimal > width ? numberString : new Array(1 + width - decimal).join('0') + numberString;
+}
+/**
+ * Adapted from https://github.com/omichelsen/compare-versions/blob/master/index.js
+ * @param {string|number} v1 First version
+ * @param {string|number} v2 Second version
+ * @returns {number} Value
+ */
+
+
+function compareVersions(v1, v2) {
+ var s1 = ('' + v1).split('.');
+ var s2 = ('' + v2).split('.');
+
+ for (var i = 0; i < Math.max(s1.length, s2.length); i++) {
+ var n1 = parseInt(s1[i] || '0', 10);
+ var n2 = parseInt(s2[i] || '0', 10);
+
+ if (n1 > n2) {
+ return 1;
+ }
+
+ if (n2 > n1) {
+ return -1;
+ }
+ }
+
+ return 0;
+}
+},{}],"../../../node_modules/ol/coordinate.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.add = add;
+exports.closestOnCircle = closestOnCircle;
+exports.closestOnSegment = closestOnSegment;
+exports.createStringXY = createStringXY;
+exports.degreesToStringHDMS = degreesToStringHDMS;
+exports.format = format;
+exports.equals = equals;
+exports.rotate = rotate;
+exports.scale = scale;
+exports.squaredDistance = squaredDistance;
+exports.distance = distance;
+exports.squaredDistanceToSegment = squaredDistanceToSegment;
+exports.toStringHDMS = toStringHDMS;
+exports.toStringXY = toStringXY;
+exports.wrapX = wrapX;
+exports.getWorldsAway = getWorldsAway;
+
+var _extent = require("./extent.js");
+
+var _math = require("./math.js");
+
+var _string = require("./string.js");
+
+/**
+ * @module ol/coordinate
+ */
+
+/**
+ * An array of numbers representing an xy coordinate. Example: `[16, 48]`.
+ * @typedef {Array<number>} Coordinate
+ * @api
+ */
+
+/**
+ * A function that takes a {@link module:ol/coordinate~Coordinate} and
+ * transforms it into a `{string}`.
+ *
+ * @typedef {function((Coordinate|undefined)): string} CoordinateFormat
+ * @api
+ */
+
+/**
+ * Add `delta` to `coordinate`. `coordinate` is modified in place and returned
+ * by the function.
+ *
+ * Example:
+ *
+ * import {add} from 'ol/coordinate';
+ *
+ * var coord = [7.85, 47.983333];
+ * add(coord, [-2, 4]);
+ * // coord is now [5.85, 51.983333]
+ *
+ * @param {Coordinate} coordinate Coordinate.
+ * @param {Coordinate} delta Delta.
+ * @return {Coordinate} The input coordinate adjusted by
+ * the given delta.
+ * @api
+ */
+function add(coordinate, delta) {
+ coordinate[0] += +delta[0];
+ coordinate[1] += +delta[1];
+ return coordinate;
+}
+/**
+ * Calculates the point closest to the passed coordinate on the passed circle.
+ *
+ * @param {Coordinate} coordinate The coordinate.
+ * @param {import("./geom/Circle.js").default} circle The circle.
+ * @return {Coordinate} Closest point on the circumference.
+ */
+
+
+function closestOnCircle(coordinate, circle) {
+ var r = circle.getRadius();
+ var center = circle.getCenter();
+ var x0 = center[0];
+ var y0 = center[1];
+ var x1 = coordinate[0];
+ var y1 = coordinate[1];
+ var dx = x1 - x0;
+ var dy = y1 - y0;
+
+ if (dx === 0 && dy === 0) {
+ dx = 1;
+ }
+
+ var d = Math.sqrt(dx * dx + dy * dy);
+ var x = x0 + r * dx / d;
+ var y = y0 + r * dy / d;
+ return [x, y];
+}
+/**
+ * Calculates the point closest to the passed coordinate on the passed segment.
+ * This is the foot of the perpendicular of the coordinate to the segment when
+ * the foot is on the segment, or the closest segment coordinate when the foot
+ * is outside the segment.
+ *
+ * @param {Coordinate} coordinate The coordinate.
+ * @param {Array<Coordinate>} segment The two coordinates
+ * of the segment.
+ * @return {Coordinate} The foot of the perpendicular of
+ * the coordinate to the segment.
+ */
+
+
+function closestOnSegment(coordinate, segment) {
+ var x0 = coordinate[0];
+ var y0 = coordinate[1];
+ var start = segment[0];
+ var end = segment[1];
+ var x1 = start[0];
+ var y1 = start[1];
+ var x2 = end[0];
+ var y2 = end[1];
+ var dx = x2 - x1;
+ var dy = y2 - y1;
+ var along = dx === 0 && dy === 0 ? 0 : (dx * (x0 - x1) + dy * (y0 - y1)) / (dx * dx + dy * dy || 0);
+ var x, y;
+
+ if (along <= 0) {
+ x = x1;
+ y = y1;
+ } else if (along >= 1) {
+ x = x2;
+ y = y2;
+ } else {
+ x = x1 + along * dx;
+ y = y1 + along * dy;
+ }
+
+ return [x, y];
+}
+/**
+ * Returns a {@link module:ol/coordinate~CoordinateFormat} function that can be
+ * used to format
+ * a {Coordinate} to a string.
+ *
+ * Example without specifying the fractional digits:
+ *
+ * import {createStringXY} from 'ol/coordinate';
+ *
+ * var coord = [7.85, 47.983333];
+ * var stringifyFunc = createStringXY();
+ * var out = stringifyFunc(coord);
+ * // out is now '8, 48'
+ *
+ * Example with explicitly specifying 2 fractional digits:
+ *
+ * import {createStringXY} from 'ol/coordinate';
+ *
+ * var coord = [7.85, 47.983333];
+ * var stringifyFunc = createStringXY(2);
+ * var out = stringifyFunc(coord);
+ * // out is now '7.85, 47.98'
+ *
+ * @param {number=} opt_fractionDigits The number of digits to include
+ * after the decimal point. Default is `0`.
+ * @return {CoordinateFormat} Coordinate format.
+ * @api
+ */
+
+
+function createStringXY(opt_fractionDigits) {
+ return (
+ /**
+ * @param {Coordinate} coordinate Coordinate.
+ * @return {string} String XY.
+ */
+ function (coordinate) {
+ return toStringXY(coordinate, opt_fractionDigits);
+ }
+ );
+}
+/**
+ * @param {string} hemispheres Hemispheres.
+ * @param {number} degrees Degrees.
+ * @param {number=} opt_fractionDigits The number of digits to include
+ * after the decimal point. Default is `0`.
+ * @return {string} String.
+ */
+
+
+function degreesToStringHDMS(hemispheres, degrees, opt_fractionDigits) {
+ var normalizedDegrees = (0, _math.modulo)(degrees + 180, 360) - 180;
+ var x = Math.abs(3600 * normalizedDegrees);
+ var dflPrecision = opt_fractionDigits || 0;
+ var precision = Math.pow(10, dflPrecision);
+ var deg = Math.floor(x / 3600);
+ var min = Math.floor((x - deg * 3600) / 60);
+ var sec = x - deg * 3600 - min * 60;
+ sec = Math.ceil(sec * precision) / precision;
+
+ if (sec >= 60) {
+ sec = 0;
+ min += 1;
+ }
+
+ if (min >= 60) {
+ min = 0;
+ deg += 1;
+ }
+
+ return deg + '\u00b0 ' + (0, _string.padNumber)(min, 2) + '\u2032 ' + (0, _string.padNumber)(sec, 2, dflPrecision) + '\u2033' + (normalizedDegrees == 0 ? '' : ' ' + hemispheres.charAt(normalizedDegrees < 0 ? 1 : 0));
+}
+/**
+ * Transforms the given {@link module:ol/coordinate~Coordinate} to a string
+ * using the given string template. The strings `{x}` and `{y}` in the template
+ * will be replaced with the first and second coordinate values respectively.
+ *
+ * Example without specifying the fractional digits:
+ *
+ * import {format} from 'ol/coordinate';
+ *
+ * var coord = [7.85, 47.983333];
+ * var template = 'Coordinate is ({x}|{y}).';
+ * var out = format(coord, template);
+ * // out is now 'Coordinate is (8|48).'
+ *
+ * Example explicitly specifying the fractional digits:
+ *
+ * import {format} from 'ol/coordinate';
+ *
+ * var coord = [7.85, 47.983333];
+ * var template = 'Coordinate is ({x}|{y}).';
+ * var out = format(coord, template, 2);
+ * // out is now 'Coordinate is (7.85|47.98).'
+ *
+ * @param {Coordinate} coordinate Coordinate.
+ * @param {string} template A template string with `{x}` and `{y}` placeholders
+ * that will be replaced by first and second coordinate values.
+ * @param {number=} opt_fractionDigits The number of digits to include
+ * after the decimal point. Default is `0`.
+ * @return {string} Formatted coordinate.
+ * @api
+ */
+
+
+function format(coordinate, template, opt_fractionDigits) {
+ if (coordinate) {
+ return template.replace('{x}', coordinate[0].toFixed(opt_fractionDigits)).replace('{y}', coordinate[1].toFixed(opt_fractionDigits));
+ } else {
+ return '';
+ }
+}
+/**
+ * @param {Coordinate} coordinate1 First coordinate.
+ * @param {Coordinate} coordinate2 Second coordinate.
+ * @return {boolean} The two coordinates are equal.
+ */
+
+
+function equals(coordinate1, coordinate2) {
+ var equals = true;
+
+ for (var i = coordinate1.length - 1; i >= 0; --i) {
+ if (coordinate1[i] != coordinate2[i]) {
+ equals = false;
+ break;
+ }
+ }
+
+ return equals;
+}
+/**
+ * Rotate `coordinate` by `angle`. `coordinate` is modified in place and
+ * returned by the function.
+ *
+ * Example:
+ *
+ * import {rotate} from 'ol/coordinate';
+ *
+ * var coord = [7.85, 47.983333];
+ * var rotateRadians = Math.PI / 2; // 90 degrees
+ * rotate(coord, rotateRadians);
+ * // coord is now [-47.983333, 7.85]
+ *
+ * @param {Coordinate} coordinate Coordinate.
+ * @param {number} angle Angle in radian.
+ * @return {Coordinate} Coordinate.
+ * @api
+ */
+
+
+function rotate(coordinate, angle) {
+ var cosAngle = Math.cos(angle);
+ var sinAngle = Math.sin(angle);
+ var x = coordinate[0] * cosAngle - coordinate[1] * sinAngle;
+ var y = coordinate[1] * cosAngle + coordinate[0] * sinAngle;
+ coordinate[0] = x;
+ coordinate[1] = y;
+ return coordinate;
+}
+/**
+ * Scale `coordinate` by `scale`. `coordinate` is modified in place and returned
+ * by the function.
+ *
+ * Example:
+ *
+ * import {scale as scaleCoordinate} from 'ol/coordinate';
+ *
+ * var coord = [7.85, 47.983333];
+ * var scale = 1.2;
+ * scaleCoordinate(coord, scale);
+ * // coord is now [9.42, 57.5799996]
+ *
+ * @param {Coordinate} coordinate Coordinate.
+ * @param {number} scale Scale factor.
+ * @return {Coordinate} Coordinate.
+ */
+
+
+function scale(coordinate, scale) {
+ coordinate[0] *= scale;
+ coordinate[1] *= scale;
+ return coordinate;
+}
+/**
+ * @param {Coordinate} coord1 First coordinate.
+ * @param {Coordinate} coord2 Second coordinate.
+ * @return {number} Squared distance between coord1 and coord2.
+ */
+
+
+function squaredDistance(coord1, coord2) {
+ var dx = coord1[0] - coord2[0];
+ var dy = coord1[1] - coord2[1];
+ return dx * dx + dy * dy;
+}
+/**
+ * @param {Coordinate} coord1 First coordinate.
+ * @param {Coordinate} coord2 Second coordinate.
+ * @return {number} Distance between coord1 and coord2.
+ */
+
+
+function distance(coord1, coord2) {
+ return Math.sqrt(squaredDistance(coord1, coord2));
+}
+/**
+ * Calculate the squared distance from a coordinate to a line segment.
+ *
+ * @param {Coordinate} coordinate Coordinate of the point.
+ * @param {Array<Coordinate>} segment Line segment (2
+ * coordinates).
+ * @return {number} Squared distance from the point to the line segment.
+ */
+
+
+function squaredDistanceToSegment(coordinate, segment) {
+ return squaredDistance(coordinate, closestOnSegment(coordinate, segment));
+}
+/**
+ * Format a geographic coordinate with the hemisphere, degrees, minutes, and
+ * seconds.
+ *
+ * Example without specifying fractional digits:
+ *
+ * import {toStringHDMS} from 'ol/coordinate';
+ *
+ * var coord = [7.85, 47.983333];
+ * var out = toStringHDMS(coord);
+ * // out is now '47° 58′ 60″ N 7° 50′ 60″ E'
+ *
+ * Example explicitly specifying 1 fractional digit:
+ *
+ * import {toStringHDMS} from 'ol/coordinate';
+ *
+ * var coord = [7.85, 47.983333];
+ * var out = toStringHDMS(coord, 1);
+ * // out is now '47° 58′ 60.0″ N 7° 50′ 60.0″ E'
+ *
+ * @param {Coordinate} coordinate Coordinate.
+ * @param {number=} opt_fractionDigits The number of digits to include
+ * after the decimal point. Default is `0`.
+ * @return {string} Hemisphere, degrees, minutes and seconds.
+ * @api
+ */
+
+
+function toStringHDMS(coordinate, opt_fractionDigits) {
+ if (coordinate) {
+ return degreesToStringHDMS('NS', coordinate[1], opt_fractionDigits) + ' ' + degreesToStringHDMS('EW', coordinate[0], opt_fractionDigits);
+ } else {
+ return '';
+ }
+}
+/**
+ * Format a coordinate as a comma delimited string.
+ *
+ * Example without specifying fractional digits:
+ *
+ * import {toStringXY} from 'ol/coordinate';
+ *
+ * var coord = [7.85, 47.983333];
+ * var out = toStringXY(coord);
+ * // out is now '8, 48'
+ *
+ * Example explicitly specifying 1 fractional digit:
+ *
+ * import {toStringXY} from 'ol/coordinate';
+ *
+ * var coord = [7.85, 47.983333];
+ * var out = toStringXY(coord, 1);
+ * // out is now '7.8, 48.0'
+ *
+ * @param {Coordinate} coordinate Coordinate.
+ * @param {number=} opt_fractionDigits The number of digits to include
+ * after the decimal point. Default is `0`.
+ * @return {string} XY.
+ * @api
+ */
+
+
+function toStringXY(coordinate, opt_fractionDigits) {
+ return format(coordinate, '{x}, {y}', opt_fractionDigits);
+}
+/**
+ * Modifies the provided coordinate in-place to be within the real world
+ * extent. The lower projection extent boundary is inclusive, the upper one
+ * exclusive.
+ *
+ * @param {Coordinate} coordinate Coordinate.
+ * @param {import("./proj/Projection.js").default} projection Projection.
+ * @return {Coordinate} The coordinate within the real world extent.
+ */
+
+
+function wrapX(coordinate, projection) {
+ if (projection.canWrapX()) {
+ var worldWidth = (0, _extent.getWidth)(projection.getExtent());
+ var worldsAway = getWorldsAway(coordinate, projection, worldWidth);
+
+ if (worldsAway) {
+ coordinate[0] -= worldsAway * worldWidth;
+ }
+ }
+
+ return coordinate;
+}
+/**
+ * @param {Coordinate} coordinate Coordinate.
+ * @param {import("./proj/Projection.js").default} projection Projection.
+ * @param {number=} opt_sourceExtentWidth Width of the source extent.
+ * @return {number} Offset in world widths.
+ */
+
+
+function getWorldsAway(coordinate, projection, opt_sourceExtentWidth) {
+ var projectionExtent = projection.getExtent();
+ var worldsAway = 0;
+
+ if (projection.canWrapX() && (coordinate[0] < projectionExtent[0] || coordinate[0] > projectionExtent[2])) {
+ var sourceExtentWidth = opt_sourceExtentWidth || (0, _extent.getWidth)(projectionExtent);
+ worldsAway = Math.floor((coordinate[0] - projectionExtent[0]) / sourceExtentWidth);
+ }
+
+ return worldsAway;
+}
+},{"./extent.js":"../../../node_modules/ol/extent.js","./math.js":"../../../node_modules/ol/math.js","./string.js":"../../../node_modules/ol/string.js"}],"../../../node_modules/ol/proj.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.cloneTransform = cloneTransform;
+exports.identityTransform = identityTransform;
+exports.addProjection = addProjection;
+exports.addProjections = addProjections;
+exports.get = get;
+exports.getPointResolution = getPointResolution;
+exports.addEquivalentProjections = addEquivalentProjections;
+exports.addEquivalentTransforms = addEquivalentTransforms;
+exports.clearAllProjections = clearAllProjections;
+exports.createProjection = createProjection;
+exports.createTransformFromCoordinateTransform = createTransformFromCoordinateTransform;
+exports.addCoordinateTransforms = addCoordinateTransforms;
+exports.fromLonLat = fromLonLat;
+exports.toLonLat = toLonLat;
+exports.equivalent = equivalent;
+exports.getTransformFromProjections = getTransformFromProjections;
+exports.getTransform = getTransform;
+exports.transform = transform;
+exports.transformExtent = transformExtent;
+exports.transformWithProjections = transformWithProjections;
+exports.setUserProjection = setUserProjection;
+exports.clearUserProjection = clearUserProjection;
+exports.getUserProjection = getUserProjection;
+exports.useGeographic = useGeographic;
+exports.toUserCoordinate = toUserCoordinate;
+exports.fromUserCoordinate = fromUserCoordinate;
+exports.toUserExtent = toUserExtent;
+exports.fromUserExtent = fromUserExtent;
+exports.createSafeCoordinateTransform = createSafeCoordinateTransform;
+exports.addCommon = addCommon;
+Object.defineProperty(exports, "Projection", {
+ enumerable: true,
+ get: function () {
+ return _Projection.default;
+ }
+});
+Object.defineProperty(exports, "METERS_PER_UNIT", {
+ enumerable: true,
+ get: function () {
+ return _Units.METERS_PER_UNIT;
+ }
+});
+
+var _Projection = _interopRequireDefault(require("./proj/Projection.js"));
+
+var _Units = _interopRequireWildcard(require("./proj/Units.js"));
+
+var _epsg = require("./proj/epsg3857.js");
+
+var _epsg2 = require("./proj/epsg4326.js");
+
+var _projections = require("./proj/projections.js");
+
+var _transforms = require("./proj/transforms.js");
+
+var _extent = require("./extent.js");
+
+var _math = require("./math.js");
+
+var _sphere = require("./sphere.js");
+
+var _coordinate = require("./coordinate.js");
+
+function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module ol/proj
+ */
+
+/**
+ * The ol/proj module stores:
+ * * a list of {@link module:ol/proj/Projection}
+ * objects, one for each projection supported by the application
+ * * a list of transform functions needed to convert coordinates in one projection
+ * into another.
+ *
+ * The static functions are the methods used to maintain these.
+ * Each transform function can handle not only simple coordinate pairs, but also
+ * large arrays of coordinates such as vector geometries.
+ *
+ * When loaded, the library adds projection objects for EPSG:4326 (WGS84
+ * geographic coordinates) and EPSG:3857 (Web or Spherical Mercator, as used
+ * for example by Bing Maps or OpenStreetMap), together with the relevant
+ * transform functions.
+ *
+ * Additional transforms may be added by using the http://proj4js.org/
+ * library (version 2.2 or later). You can use the full build supplied by
+ * Proj4js, or create a custom build to support those projections you need; see
+ * the Proj4js website for how to do this. You also need the Proj4js definitions
+ * for the required projections. These definitions can be obtained from
+ * https://epsg.io/, and are a JS function, so can be loaded in a script
+ * tag (as in the examples) or pasted into your application.
+ *
+ * After all required projection definitions are added to proj4's registry (by
+ * using `proj4.defs()`), simply call `register(proj4)` from the `ol/proj/proj4`
+ * package. Existing transforms are not changed by this function. See
+ * examples/wms-image-custom-proj for an example of this.
+ *
+ * Additional projection definitions can be registered with `proj4.defs()` any
+ * time. Just make sure to call `register(proj4)` again; for example, with user-supplied data where you don't
+ * know in advance what projections are needed, you can initially load minimal
+ * support and then load whichever are requested.
+ *
+ * Note that Proj4js does not support projection extents. If you want to add
+ * one for creating default tile grids, you can add it after the Projection
+ * object has been created with `setExtent`, for example,
+ * `get('EPSG:1234').setExtent(extent)`.
+ *
+ * In addition to Proj4js support, any transform functions can be added with
+ * {@link module:ol/proj~addCoordinateTransforms}. To use this, you must first create
+ * a {@link module:ol/proj/Projection} object for the new projection and add it with
+ * {@link module:ol/proj~addProjection}. You can then add the forward and inverse
+ * functions with {@link module:ol/proj~addCoordinateTransforms}. See
+ * examples/wms-custom-proj for an example of this.
+ *
+ * Note that if no transforms are needed and you only need to define the
+ * projection, just add a {@link module:ol/proj/Projection} with
+ * {@link module:ol/proj~addProjection}. See examples/wms-no-proj for an example of
+ * this.
+ */
+
+/**
+ * A projection as {@link module:ol/proj/Projection}, SRS identifier
+ * string or undefined.
+ * @typedef {Projection|string|undefined} ProjectionLike
+ * @api
+ */
+
+/**
+ * A transform function accepts an array of input coordinate values, an optional
+ * output array, and an optional dimension (default should be 2). The function
+ * transforms the input coordinate values, populates the output array, and
+ * returns the output array.
+ *
+ * @typedef {function(Array<number>, Array<number>=, number=): Array<number>} TransformFunction
+ * @api
+ */
+
+/**
+ * @param {Array<number>} input Input coordinate array.
+ * @param {Array<number>=} opt_output Output array of coordinate values.
+ * @param {number=} opt_dimension Dimension.
+ * @return {Array<number>} Output coordinate array (new array, same coordinate
+ * values).
+ */
+function cloneTransform(input, opt_output, opt_dimension) {
+ var output;
+
+ if (opt_output !== undefined) {
+ for (var i = 0, ii = input.length; i < ii; ++i) {
+ opt_output[i] = input[i];
+ }
+
+ output = opt_output;
+ } else {
+ output = input.slice();
+ }
+
+ return output;
+}
+/**
+ * @param {Array<number>} input Input coordinate array.
+ * @param {Array<number>=} opt_output Output array of coordinate values.
+ * @param {number=} opt_dimension Dimension.
+ * @return {Array<number>} Input coordinate array (same array as input).
+ */
+
+
+function identityTransform(input, opt_output, opt_dimension) {
+ if (opt_output !== undefined && input !== opt_output) {
+ for (var i = 0, ii = input.length; i < ii; ++i) {
+ opt_output[i] = input[i];
+ }
+
+ input = opt_output;
+ }
+
+ return input;
+}
+/**
+ * Add a Projection object to the list of supported projections that can be
+ * looked up by their code.
+ *
+ * @param {Projection} projection Projection instance.
+ * @api
+ */
+
+
+function addProjection(projection) {
+ (0, _projections.add)(projection.getCode(), projection);
+ (0, _transforms.add)(projection, projection, cloneTransform);
+}
+/**
+ * @param {Array<Projection>} projections Projections.
+ */
+
+
+function addProjections(projections) {
+ projections.forEach(addProjection);
+}
+/**
+ * Fetches a Projection object for the code specified.
+ *
+ * @param {ProjectionLike} projectionLike Either a code string which is
+ * a combination of authority and identifier such as "EPSG:4326", or an
+ * existing projection object, or undefined.
+ * @return {Projection} Projection object, or null if not in list.
+ * @api
+ */
+
+
+function get(projectionLike) {
+ return typeof projectionLike === 'string' ? (0, _projections.get)(
+ /** @type {string} */
+ projectionLike) :
+ /** @type {Projection} */
+ projectionLike || null;
+}
+/**
+ * Get the resolution of the point in degrees or distance units.
+ * For projections with degrees as the unit this will simply return the
+ * provided resolution. For other projections the point resolution is
+ * by default estimated by transforming the 'point' pixel to EPSG:4326,
+ * measuring its width and height on the normal sphere,
+ * and taking the average of the width and height.
+ * A custom function can be provided for a specific projection, either
+ * by setting the `getPointResolution` option in the
+ * {@link module:ol/proj/Projection~Projection} constructor or by using
+ * {@link module:ol/proj/Projection~Projection#setGetPointResolution} to change an existing
+ * projection object.
+ * @param {ProjectionLike} projection The projection.
+ * @param {number} resolution Nominal resolution in projection units.
+ * @param {import("./coordinate.js").Coordinate} point Point to find adjusted resolution at.
+ * @param {import("./proj/Units.js").default=} opt_units Units to get the point resolution in.
+ * Default is the projection's units.
+ * @return {number} Point resolution.
+ * @api
+ */
+
+
+function getPointResolution(projection, resolution, point, opt_units) {
+ projection = get(projection);
+ var pointResolution;
+ var getter = projection.getPointResolutionFunc();
+
+ if (getter) {
+ pointResolution = getter(resolution, point);
+
+ if (opt_units && opt_units !== projection.getUnits()) {
+ var metersPerUnit = projection.getMetersPerUnit();
+
+ if (metersPerUnit) {
+ pointResolution = pointResolution * metersPerUnit / _Units.METERS_PER_UNIT[opt_units];
+ }
+ }
+ } else {
+ var units = projection.getUnits();
+
+ if (units == _Units.default.DEGREES && !opt_units || opt_units == _Units.default.DEGREES) {
+ pointResolution = resolution;
+ } else {
+ // Estimate point resolution by transforming the center pixel to EPSG:4326,
+ // measuring its width and height on the normal sphere, and taking the
+ // average of the width and height.
+ var toEPSG4326_1 = getTransformFromProjections(projection, get('EPSG:4326'));
+ var vertices = [point[0] - resolution / 2, point[1], point[0] + resolution / 2, point[1], point[0], point[1] - resolution / 2, point[0], point[1] + resolution / 2];
+ vertices = toEPSG4326_1(vertices, vertices, 2);
+ var width = (0, _sphere.getDistance)(vertices.slice(0, 2), vertices.slice(2, 4));
+ var height = (0, _sphere.getDistance)(vertices.slice(4, 6), vertices.slice(6, 8));
+ pointResolution = (width + height) / 2;
+ var metersPerUnit = opt_units ? _Units.METERS_PER_UNIT[opt_units] : projection.getMetersPerUnit();
+
+ if (metersPerUnit !== undefined) {
+ pointResolution /= metersPerUnit;
+ }
+ }
+ }
+
+ return pointResolution;
+}
+/**
+ * Registers transformation functions that don't alter coordinates. Those allow
+ * to transform between projections with equal meaning.
+ *
+ * @param {Array<Projection>} projections Projections.
+ * @api
+ */
+
+
+function addEquivalentProjections(projections) {
+ addProjections(projections);
+ projections.forEach(function (source) {
+ projections.forEach(function (destination) {
+ if (source !== destination) {
+ (0, _transforms.add)(source, destination, cloneTransform);
+ }
+ });
+ });
+}
+/**
+ * Registers transformation functions to convert coordinates in any projection
+ * in projection1 to any projection in projection2.
+ *
+ * @param {Array<Projection>} projections1 Projections with equal
+ * meaning.
+ * @param {Array<Projection>} projections2 Projections with equal
+ * meaning.
+ * @param {TransformFunction} forwardTransform Transformation from any
+ * projection in projection1 to any projection in projection2.
+ * @param {TransformFunction} inverseTransform Transform from any projection
+ * in projection2 to any projection in projection1..
+ */
+
+
+function addEquivalentTransforms(projections1, projections2, forwardTransform, inverseTransform) {
+ projections1.forEach(function (projection1) {
+ projections2.forEach(function (projection2) {
+ (0, _transforms.add)(projection1, projection2, forwardTransform);
+ (0, _transforms.add)(projection2, projection1, inverseTransform);
+ });
+ });
+}
+/**
+ * Clear all cached projections and transforms.
+ */
+
+
+function clearAllProjections() {
+ (0, _projections.clear)();
+ (0, _transforms.clear)();
+}
+/**
+ * @param {Projection|string|undefined} projection Projection.
+ * @param {string} defaultCode Default code.
+ * @return {Projection} Projection.
+ */
+
+
+function createProjection(projection, defaultCode) {
+ if (!projection) {
+ return get(defaultCode);
+ } else if (typeof projection === 'string') {
+ return get(projection);
+ } else {
+ return (
+ /** @type {Projection} */
+ projection
+ );
+ }
+}
+/**
+ * Creates a {@link module:ol/proj~TransformFunction} from a simple 2D coordinate transform
+ * function.
+ * @param {function(import("./coordinate.js").Coordinate): import("./coordinate.js").Coordinate} coordTransform Coordinate
+ * transform.
+ * @return {TransformFunction} Transform function.
+ */
+
+
+function createTransformFromCoordinateTransform(coordTransform) {
+ return (
+ /**
+ * @param {Array<number>} input Input.
+ * @param {Array<number>=} opt_output Output.
+ * @param {number=} opt_dimension Dimension.
+ * @return {Array<number>} Output.
+ */
+ function (input, opt_output, opt_dimension) {
+ var length = input.length;
+ var dimension = opt_dimension !== undefined ? opt_dimension : 2;
+ var output = opt_output !== undefined ? opt_output : new Array(length);
+
+ for (var i = 0; i < length; i += dimension) {
+ var point = coordTransform([input[i], input[i + 1]]);
+ output[i] = point[0];
+ output[i + 1] = point[1];
+
+ for (var j = dimension - 1; j >= 2; --j) {
+ output[i + j] = input[i + j];
+ }
+ }
+
+ return output;
+ }
+ );
+}
+/**
+ * Registers coordinate transform functions to convert coordinates between the
+ * source projection and the destination projection.
+ * The forward and inverse functions convert coordinate pairs; this function
+ * converts these into the functions used internally which also handle
+ * extents and coordinate arrays.
+ *
+ * @param {ProjectionLike} source Source projection.
+ * @param {ProjectionLike} destination Destination projection.
+ * @param {function(import("./coordinate.js").Coordinate): import("./coordinate.js").Coordinate} forward The forward transform
+ * function (that is, from the source projection to the destination
+ * projection) that takes a {@link module:ol/coordinate~Coordinate} as argument and returns
+ * the transformed {@link module:ol/coordinate~Coordinate}.
+ * @param {function(import("./coordinate.js").Coordinate): import("./coordinate.js").Coordinate} inverse The inverse transform
+ * function (that is, from the destination projection to the source
+ * projection) that takes a {@link module:ol/coordinate~Coordinate} as argument and returns
+ * the transformed {@link module:ol/coordinate~Coordinate}.
+ * @api
+ */
+
+
+function addCoordinateTransforms(source, destination, forward, inverse) {
+ var sourceProj = get(source);
+ var destProj = get(destination);
+ (0, _transforms.add)(sourceProj, destProj, createTransformFromCoordinateTransform(forward));
+ (0, _transforms.add)(destProj, sourceProj, createTransformFromCoordinateTransform(inverse));
+}
+/**
+ * Transforms a coordinate from longitude/latitude to a different projection.
+ * @param {import("./coordinate.js").Coordinate} coordinate Coordinate as longitude and latitude, i.e.
+ * an array with longitude as 1st and latitude as 2nd element.
+ * @param {ProjectionLike=} opt_projection Target projection. The
+ * default is Web Mercator, i.e. 'EPSG:3857'.
+ * @return {import("./coordinate.js").Coordinate} Coordinate projected to the target projection.
+ * @api
+ */
+
+
+function fromLonLat(coordinate, opt_projection) {
+ return transform(coordinate, 'EPSG:4326', opt_projection !== undefined ? opt_projection : 'EPSG:3857');
+}
+/**
+ * Transforms a coordinate to longitude/latitude.
+ * @param {import("./coordinate.js").Coordinate} coordinate Projected coordinate.
+ * @param {ProjectionLike=} opt_projection Projection of the coordinate.
+ * The default is Web Mercator, i.e. 'EPSG:3857'.
+ * @return {import("./coordinate.js").Coordinate} Coordinate as longitude and latitude, i.e. an array
+ * with longitude as 1st and latitude as 2nd element.
+ * @api
+ */
+
+
+function toLonLat(coordinate, opt_projection) {
+ var lonLat = transform(coordinate, opt_projection !== undefined ? opt_projection : 'EPSG:3857', 'EPSG:4326');
+ var lon = lonLat[0];
+
+ if (lon < -180 || lon > 180) {
+ lonLat[0] = (0, _math.modulo)(lon + 180, 360) - 180;
+ }
+
+ return lonLat;
+}
+/**
+ * Checks if two projections are the same, that is every coordinate in one
+ * projection does represent the same geographic point as the same coordinate in
+ * the other projection.
+ *
+ * @param {Projection} projection1 Projection 1.
+ * @param {Projection} projection2 Projection 2.
+ * @return {boolean} Equivalent.
+ * @api
+ */
+
+
+function equivalent(projection1, projection2) {
+ if (projection1 === projection2) {
+ return true;
+ }
+
+ var equalUnits = projection1.getUnits() === projection2.getUnits();
+
+ if (projection1.getCode() === projection2.getCode()) {
+ return equalUnits;
+ } else {
+ var transformFunc = getTransformFromProjections(projection1, projection2);
+ return transformFunc === cloneTransform && equalUnits;
+ }
+}
+/**
+ * Searches in the list of transform functions for the function for converting
+ * coordinates from the source projection to the destination projection.
+ *
+ * @param {Projection} sourceProjection Source Projection object.
+ * @param {Projection} destinationProjection Destination Projection
+ * object.
+ * @return {TransformFunction} Transform function.
+ */
+
+
+function getTransformFromProjections(sourceProjection, destinationProjection) {
+ var sourceCode = sourceProjection.getCode();
+ var destinationCode = destinationProjection.getCode();
+ var transformFunc = (0, _transforms.get)(sourceCode, destinationCode);
+
+ if (!transformFunc) {
+ transformFunc = identityTransform;
+ }
+
+ return transformFunc;
+}
+/**
+ * Given the projection-like objects, searches for a transformation
+ * function to convert a coordinates array from the source projection to the
+ * destination projection.
+ *
+ * @param {ProjectionLike} source Source.
+ * @param {ProjectionLike} destination Destination.
+ * @return {TransformFunction} Transform function.
+ * @api
+ */
+
+
+function getTransform(source, destination) {
+ var sourceProjection = get(source);
+ var destinationProjection = get(destination);
+ return getTransformFromProjections(sourceProjection, destinationProjection);
+}
+/**
+ * Transforms a coordinate from source projection to destination projection.
+ * This returns a new coordinate (and does not modify the original).
+ *
+ * See {@link module:ol/proj~transformExtent} for extent transformation.
+ * See the transform method of {@link module:ol/geom/Geometry~Geometry} and its
+ * subclasses for geometry transforms.
+ *
+ * @param {import("./coordinate.js").Coordinate} coordinate Coordinate.
+ * @param {ProjectionLike} source Source projection-like.
+ * @param {ProjectionLike} destination Destination projection-like.
+ * @return {import("./coordinate.js").Coordinate} Coordinate.
+ * @api
+ */
+
+
+function transform(coordinate, source, destination) {
+ var transformFunc = getTransform(source, destination);
+ return transformFunc(coordinate, undefined, coordinate.length);
+}
+/**
+ * Transforms an extent from source projection to destination projection. This
+ * returns a new extent (and does not modify the original).
+ *
+ * @param {import("./extent.js").Extent} extent The extent to transform.
+ * @param {ProjectionLike} source Source projection-like.
+ * @param {ProjectionLike} destination Destination projection-like.
+ * @param {number=} opt_stops Number of stops per side used for the transform.
+ * By default only the corners are used.
+ * @return {import("./extent.js").Extent} The transformed extent.
+ * @api
+ */
+
+
+function transformExtent(extent, source, destination, opt_stops) {
+ var transformFunc = getTransform(source, destination);
+ return (0, _extent.applyTransform)(extent, transformFunc, undefined, opt_stops);
+}
+/**
+ * Transforms the given point to the destination projection.
+ *
+ * @param {import("./coordinate.js").Coordinate} point Point.
+ * @param {Projection} sourceProjection Source projection.
+ * @param {Projection} destinationProjection Destination projection.
+ * @return {import("./coordinate.js").Coordinate} Point.
+ */
+
+
+function transformWithProjections(point, sourceProjection, destinationProjection) {
+ var transformFunc = getTransformFromProjections(sourceProjection, destinationProjection);
+ return transformFunc(point);
+}
+/**
+ * @type {?Projection}
+ */
+
+
+var userProjection = null;
+/**
+ * Set the projection for coordinates supplied from and returned by API methods.
+ * Note that this method is not yet a part of the stable API. Support for user
+ * projections is not yet complete and should be considered experimental.
+ * @param {ProjectionLike} projection The user projection.
+ */
+
+function setUserProjection(projection) {
+ userProjection = get(projection);
+}
+/**
+ * Clear the user projection if set. Note that this method is not yet a part of
+ * the stable API. Support for user projections is not yet complete and should
+ * be considered experimental.
+ */
+
+
+function clearUserProjection() {
+ userProjection = null;
+}
+/**
+ * Get the projection for coordinates supplied from and returned by API methods.
+ * Note that this method is not yet a part of the stable API. Support for user
+ * projections is not yet complete and should be considered experimental.
+ * @returns {?Projection} The user projection (or null if not set).
+ */
+
+
+function getUserProjection() {
+ return userProjection;
+}
+/**
+ * Use geographic coordinates (WGS-84 datum) in API methods. Note that this
+ * method is not yet a part of the stable API. Support for user projections is
+ * not yet complete and should be considered experimental.
+ */
+
+
+function useGeographic() {
+ setUserProjection('EPSG:4326');
+}
+/**
+ * Return a coordinate transformed into the user projection. If no user projection
+ * is set, the original coordinate is returned.
+ * @param {Array<number>} coordinate Input coordinate.
+ * @param {ProjectionLike} sourceProjection The input coordinate projection.
+ * @returns {Array<number>} The input coordinate in the user projection.
+ */
+
+
+function toUserCoordinate(coordinate, sourceProjection) {
+ if (!userProjection) {
+ return coordinate;
+ }
+
+ return transform(coordinate, sourceProjection, userProjection);
+}
+/**
+ * Return a coordinate transformed from the user projection. If no user projection
+ * is set, the original coordinate is returned.
+ * @param {Array<number>} coordinate Input coordinate.
+ * @param {ProjectionLike} destProjection The destination projection.
+ * @returns {Array<number>} The input coordinate transformed.
+ */
+
+
+function fromUserCoordinate(coordinate, destProjection) {
+ if (!userProjection) {
+ return coordinate;
+ }
+
+ return transform(coordinate, userProjection, destProjection);
+}
+/**
+ * Return an extent transformed into the user projection. If no user projection
+ * is set, the original extent is returned.
+ * @param {import("./extent.js").Extent} extent Input extent.
+ * @param {ProjectionLike} sourceProjection The input extent projection.
+ * @returns {import("./extent.js").Extent} The input extent in the user projection.
+ */
+
+
+function toUserExtent(extent, sourceProjection) {
+ if (!userProjection) {
+ return extent;
+ }
+
+ return transformExtent(extent, sourceProjection, userProjection);
+}
+/**
+ * Return an extent transformed from the user projection. If no user projection
+ * is set, the original extent is returned.
+ * @param {import("./extent.js").Extent} extent Input extent.
+ * @param {ProjectionLike} destProjection The destination projection.
+ * @returns {import("./extent.js").Extent} The input extent transformed.
+ */
+
+
+function fromUserExtent(extent, destProjection) {
+ if (!userProjection) {
+ return extent;
+ }
+
+ return transformExtent(extent, userProjection, destProjection);
+}
+/**
+ * Creates a safe coordinate transform function from a coordinate transform function.
+ * "Safe" means that it can handle wrapping of x-coordinates for global projections,
+ * and that coordinates exceeding the source projection validity extent's range will be
+ * clamped to the validity range.
+ * @param {Projection} sourceProj Source projection.
+ * @param {Projection} destProj Destination projection.
+ * @param {function(import("./coordinate.js").Coordinate): import("./coordinate.js").Coordinate} transform Transform function (source to destiation).
+ * @return {function(import("./coordinate.js").Coordinate): import("./coordinate.js").Coordinate} Safe transform function (source to destiation).
+ */
+
+
+function createSafeCoordinateTransform(sourceProj, destProj, transform) {
+ return function (coord) {
+ var sourceX = coord[0];
+ var sourceY = coord[1];
+ var transformed, worldsAway;
+
+ if (sourceProj.canWrapX()) {
+ var sourceExtent = sourceProj.getExtent();
+ var sourceExtentWidth = (0, _extent.getWidth)(sourceExtent);
+ worldsAway = (0, _coordinate.getWorldsAway)(coord, sourceProj, sourceExtentWidth);
+
+ if (worldsAway) {
+ // Move x to the real world
+ sourceX = sourceX - worldsAway * sourceExtentWidth;
+ }
+
+ sourceX = (0, _math.clamp)(sourceX, sourceExtent[0], sourceExtent[2]);
+ sourceY = (0, _math.clamp)(sourceY, sourceExtent[1], sourceExtent[3]);
+ transformed = transform([sourceX, sourceY]);
+ } else {
+ transformed = transform(coord);
+ }
+
+ if (worldsAway && destProj.canWrapX()) {
+ // Move transformed coordinate back to the offset world
+ transformed[0] += worldsAway * (0, _extent.getWidth)(destProj.getExtent());
+ }
+
+ return transformed;
+ };
+}
+/**
+ * Add transforms to and from EPSG:4326 and EPSG:3857. This function is called
+ * by when this module is executed and should only need to be called again after
+ * `clearAllProjections()` is called (e.g. in tests).
+ */
+
+
+function addCommon() {
+ // Add transformations that don't alter coordinates to convert within set of
+ // projections with equal meaning.
+ addEquivalentProjections(_epsg.PROJECTIONS);
+ addEquivalentProjections(_epsg2.PROJECTIONS); // Add transformations to convert EPSG:4326 like coordinates to EPSG:3857 like
+ // coordinates and back.
+
+ addEquivalentTransforms(_epsg2.PROJECTIONS, _epsg.PROJECTIONS, _epsg.fromEPSG4326, _epsg.toEPSG4326);
+}
+
+addCommon();
+},{"./proj/Projection.js":"../../../node_modules/ol/proj/Projection.js","./proj/Units.js":"../../../node_modules/ol/proj/Units.js","./proj/epsg3857.js":"../../../node_modules/ol/proj/epsg3857.js","./proj/epsg4326.js":"../../../node_modules/ol/proj/epsg4326.js","./proj/projections.js":"../../../node_modules/ol/proj/projections.js","./proj/transforms.js":"../../../node_modules/ol/proj/transforms.js","./extent.js":"../../../node_modules/ol/extent.js","./math.js":"../../../node_modules/ol/math.js","./sphere.js":"../../../node_modules/ol/sphere.js","./coordinate.js":"../../../node_modules/ol/coordinate.js"}],"../../../node_modules/ol/geom/flat/transform.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.transform2D = transform2D;
+exports.rotate = rotate;
+exports.scale = scale;
+exports.translate = translate;
+
+/**
+ * @module ol/geom/flat/transform
+ */
+
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @param {import("../../transform.js").Transform} transform Transform.
+ * @param {Array<number>=} opt_dest Destination.
+ * @return {Array<number>} Transformed coordinates.
+ */
+function transform2D(flatCoordinates, offset, end, stride, transform, opt_dest) {
+ var dest = opt_dest ? opt_dest : [];
+ var i = 0;
+
+ for (var j = offset; j < end; j += stride) {
+ var x = flatCoordinates[j];
+ var y = flatCoordinates[j + 1];
+ dest[i++] = transform[0] * x + transform[2] * y + transform[4];
+ dest[i++] = transform[1] * x + transform[3] * y + transform[5];
+ }
+
+ if (opt_dest && dest.length != i) {
+ dest.length = i;
+ }
+
+ return dest;
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @param {number} angle Angle.
+ * @param {Array<number>} anchor Rotation anchor point.
+ * @param {Array<number>=} opt_dest Destination.
+ * @return {Array<number>} Transformed coordinates.
+ */
+
+
+function rotate(flatCoordinates, offset, end, stride, angle, anchor, opt_dest) {
+ var dest = opt_dest ? opt_dest : [];
+ var cos = Math.cos(angle);
+ var sin = Math.sin(angle);
+ var anchorX = anchor[0];
+ var anchorY = anchor[1];
+ var i = 0;
+
+ for (var j = offset; j < end; j += stride) {
+ var deltaX = flatCoordinates[j] - anchorX;
+ var deltaY = flatCoordinates[j + 1] - anchorY;
+ dest[i++] = anchorX + deltaX * cos - deltaY * sin;
+ dest[i++] = anchorY + deltaX * sin + deltaY * cos;
+
+ for (var k = j + 2; k < j + stride; ++k) {
+ dest[i++] = flatCoordinates[k];
+ }
+ }
+
+ if (opt_dest && dest.length != i) {
+ dest.length = i;
+ }
+
+ return dest;
+}
+/**
+ * Scale the coordinates.
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @param {number} sx Scale factor in the x-direction.
+ * @param {number} sy Scale factor in the y-direction.
+ * @param {Array<number>} anchor Scale anchor point.
+ * @param {Array<number>=} opt_dest Destination.
+ * @return {Array<number>} Transformed coordinates.
+ */
+
+
+function scale(flatCoordinates, offset, end, stride, sx, sy, anchor, opt_dest) {
+ var dest = opt_dest ? opt_dest : [];
+ var anchorX = anchor[0];
+ var anchorY = anchor[1];
+ var i = 0;
+
+ for (var j = offset; j < end; j += stride) {
+ var deltaX = flatCoordinates[j] - anchorX;
+ var deltaY = flatCoordinates[j + 1] - anchorY;
+ dest[i++] = anchorX + sx * deltaX;
+ dest[i++] = anchorY + sy * deltaY;
+
+ for (var k = j + 2; k < j + stride; ++k) {
+ dest[i++] = flatCoordinates[k];
+ }
+ }
+
+ if (opt_dest && dest.length != i) {
+ dest.length = i;
+ }
+
+ return dest;
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @param {number} deltaX Delta X.
+ * @param {number} deltaY Delta Y.
+ * @param {Array<number>=} opt_dest Destination.
+ * @return {Array<number>} Transformed coordinates.
+ */
+
+
+function translate(flatCoordinates, offset, end, stride, deltaX, deltaY, opt_dest) {
+ var dest = opt_dest ? opt_dest : [];
+ var i = 0;
+
+ for (var j = offset; j < end; j += stride) {
+ dest[i++] = flatCoordinates[j] + deltaX;
+ dest[i++] = flatCoordinates[j + 1] + deltaY;
+
+ for (var k = j + 2; k < j + stride; ++k) {
+ dest[i++] = flatCoordinates[k];
+ }
+ }
+
+ if (opt_dest && dest.length != i) {
+ dest.length = i;
+ }
+
+ return dest;
+}
+},{}],"../../../node_modules/ol/geom/Geometry.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Object = _interopRequireDefault(require("../Object.js"));
+
+var _Units = _interopRequireDefault(require("../proj/Units.js"));
+
+var _util = require("../util.js");
+
+var _transform = require("../transform.js");
+
+var _extent = require("../extent.js");
+
+var _proj = require("../proj.js");
+
+var _functions = require("../functions.js");
+
+var _transform2 = require("./flat/transform.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/geom/Geometry
+ */
+
+
+/**
+ * @type {import("../transform.js").Transform}
+ */
+var tmpTransform = (0, _transform.create)();
+/**
+ * @classdesc
+ * Abstract base class; normally only used for creating subclasses and not
+ * instantiated in apps.
+ * Base class for vector geometries.
+ *
+ * To get notified of changes to the geometry, register a listener for the
+ * generic `change` event on your geometry instance.
+ *
+ * @abstract
+ * @api
+ */
+
+var Geometry =
+/** @class */
+function (_super) {
+ __extends(Geometry, _super);
+
+ function Geometry() {
+ var _this = _super.call(this) || this;
+ /**
+ * @private
+ * @type {import("../extent.js").Extent}
+ */
+
+
+ _this.extent_ = (0, _extent.createEmpty)();
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.extentRevision_ = -1;
+ /**
+ * @protected
+ * @type {number}
+ */
+
+ _this.simplifiedGeometryMaxMinSquaredTolerance = 0;
+ /**
+ * @protected
+ * @type {number}
+ */
+
+ _this.simplifiedGeometryRevision = 0;
+ /**
+ * Get a transformed and simplified version of the geometry.
+ * @abstract
+ * @param {number} revision The geometry revision.
+ * @param {number} squaredTolerance Squared tolerance.
+ * @param {import("../proj.js").TransformFunction} [opt_transform] Optional transform function.
+ * @return {Geometry} Simplified geometry.
+ */
+
+ _this.simplifyTransformedInternal = (0, _functions.memoizeOne)(function (revision, squaredTolerance, opt_transform) {
+ if (!opt_transform) {
+ return this.getSimplifiedGeometry(squaredTolerance);
+ }
+
+ var clone = this.clone();
+ clone.applyTransform(opt_transform);
+ return clone.getSimplifiedGeometry(squaredTolerance);
+ });
+ return _this;
+ }
+ /**
+ * Get a transformed and simplified version of the geometry.
+ * @abstract
+ * @param {number} squaredTolerance Squared tolerance.
+ * @param {import("../proj.js").TransformFunction} [opt_transform] Optional transform function.
+ * @return {Geometry} Simplified geometry.
+ */
+
+
+ Geometry.prototype.simplifyTransformed = function (squaredTolerance, opt_transform) {
+ return this.simplifyTransformedInternal(this.getRevision(), squaredTolerance, opt_transform);
+ };
+ /**
+ * Make a complete copy of the geometry.
+ * @abstract
+ * @return {!Geometry} Clone.
+ */
+
+
+ Geometry.prototype.clone = function () {
+ return (0, _util.abstract)();
+ };
+ /**
+ * @abstract
+ * @param {number} x X.
+ * @param {number} y Y.
+ * @param {import("../coordinate.js").Coordinate} closestPoint Closest point.
+ * @param {number} minSquaredDistance Minimum squared distance.
+ * @return {number} Minimum squared distance.
+ */
+
+
+ Geometry.prototype.closestPointXY = function (x, y, closestPoint, minSquaredDistance) {
+ return (0, _util.abstract)();
+ };
+ /**
+ * @param {number} x X.
+ * @param {number} y Y.
+ * @return {boolean} Contains (x, y).
+ */
+
+
+ Geometry.prototype.containsXY = function (x, y) {
+ var coord = this.getClosestPoint([x, y]);
+ return coord[0] === x && coord[1] === y;
+ };
+ /**
+ * Return the closest point of the geometry to the passed point as
+ * {@link module:ol/coordinate~Coordinate coordinate}.
+ * @param {import("../coordinate.js").Coordinate} point Point.
+ * @param {import("../coordinate.js").Coordinate=} opt_closestPoint Closest point.
+ * @return {import("../coordinate.js").Coordinate} Closest point.
+ * @api
+ */
+
+
+ Geometry.prototype.getClosestPoint = function (point, opt_closestPoint) {
+ var closestPoint = opt_closestPoint ? opt_closestPoint : [NaN, NaN];
+ this.closestPointXY(point[0], point[1], closestPoint, Infinity);
+ return closestPoint;
+ };
+ /**
+ * Returns true if this geometry includes the specified coordinate. If the
+ * coordinate is on the boundary of the geometry, returns false.
+ * @param {import("../coordinate.js").Coordinate} coordinate Coordinate.
+ * @return {boolean} Contains coordinate.
+ * @api
+ */
+
+
+ Geometry.prototype.intersectsCoordinate = function (coordinate) {
+ return this.containsXY(coordinate[0], coordinate[1]);
+ };
+ /**
+ * @abstract
+ * @param {import("../extent.js").Extent} extent Extent.
+ * @protected
+ * @return {import("../extent.js").Extent} extent Extent.
+ */
+
+
+ Geometry.prototype.computeExtent = function (extent) {
+ return (0, _util.abstract)();
+ };
+ /**
+ * Get the extent of the geometry.
+ * @param {import("../extent.js").Extent=} opt_extent Extent.
+ * @return {import("../extent.js").Extent} extent Extent.
+ * @api
+ */
+
+
+ Geometry.prototype.getExtent = function (opt_extent) {
+ if (this.extentRevision_ != this.getRevision()) {
+ var extent = this.computeExtent(this.extent_);
+
+ if (isNaN(extent[0]) || isNaN(extent[1])) {
+ (0, _extent.createOrUpdateEmpty)(extent);
+ }
+
+ this.extentRevision_ = this.getRevision();
+ }
+
+ return (0, _extent.returnOrUpdate)(this.extent_, opt_extent);
+ };
+ /**
+ * Rotate the geometry around a given coordinate. This modifies the geometry
+ * coordinates in place.
+ * @abstract
+ * @param {number} angle Rotation angle in radians.
+ * @param {import("../coordinate.js").Coordinate} anchor The rotation center.
+ * @api
+ */
+
+
+ Geometry.prototype.rotate = function (angle, anchor) {
+ (0, _util.abstract)();
+ };
+ /**
+ * Scale the geometry (with an optional origin). This modifies the geometry
+ * coordinates in place.
+ * @abstract
+ * @param {number} sx The scaling factor in the x-direction.
+ * @param {number=} opt_sy The scaling factor in the y-direction (defaults to sx).
+ * @param {import("../coordinate.js").Coordinate=} opt_anchor The scale origin (defaults to the center
+ * of the geometry extent).
+ * @api
+ */
+
+
+ Geometry.prototype.scale = function (sx, opt_sy, opt_anchor) {
+ (0, _util.abstract)();
+ };
+ /**
+ * Create a simplified version of this geometry. For linestrings, this uses
+ * the [Douglas Peucker](https://en.wikipedia.org/wiki/Ramer-Douglas-Peucker_algorithm)
+ * algorithm. For polygons, a quantization-based
+ * simplification is used to preserve topology.
+ * @param {number} tolerance The tolerance distance for simplification.
+ * @return {Geometry} A new, simplified version of the original geometry.
+ * @api
+ */
+
+
+ Geometry.prototype.simplify = function (tolerance) {
+ return this.getSimplifiedGeometry(tolerance * tolerance);
+ };
+ /**
+ * Create a simplified version of this geometry using the Douglas Peucker
+ * algorithm.
+ * See https://en.wikipedia.org/wiki/Ramer-Douglas-Peucker_algorithm.
+ * @abstract
+ * @param {number} squaredTolerance Squared tolerance.
+ * @return {Geometry} Simplified geometry.
+ */
+
+
+ Geometry.prototype.getSimplifiedGeometry = function (squaredTolerance) {
+ return (0, _util.abstract)();
+ };
+ /**
+ * Get the type of this geometry.
+ * @abstract
+ * @return {import("./GeometryType.js").default} Geometry type.
+ */
+
+
+ Geometry.prototype.getType = function () {
+ return (0, _util.abstract)();
+ };
+ /**
+ * Apply a transform function to the coordinates of the geometry.
+ * The geometry is modified in place.
+ * If you do not want the geometry modified in place, first `clone()` it and
+ * then use this function on the clone.
+ * @abstract
+ * @param {import("../proj.js").TransformFunction} transformFn Transform function.
+ * Called with a flat array of geometry coordinates.
+ */
+
+
+ Geometry.prototype.applyTransform = function (transformFn) {
+ (0, _util.abstract)();
+ };
+ /**
+ * Test if the geometry and the passed extent intersect.
+ * @abstract
+ * @param {import("../extent.js").Extent} extent Extent.
+ * @return {boolean} `true` if the geometry and the extent intersect.
+ */
+
+
+ Geometry.prototype.intersectsExtent = function (extent) {
+ return (0, _util.abstract)();
+ };
+ /**
+ * Translate the geometry. This modifies the geometry coordinates in place. If
+ * instead you want a new geometry, first `clone()` this geometry.
+ * @abstract
+ * @param {number} deltaX Delta X.
+ * @param {number} deltaY Delta Y.
+ * @api
+ */
+
+
+ Geometry.prototype.translate = function (deltaX, deltaY) {
+ (0, _util.abstract)();
+ };
+ /**
+ * Transform each coordinate of the geometry from one coordinate reference
+ * system to another. The geometry is modified in place.
+ * For example, a line will be transformed to a line and a circle to a circle.
+ * If you do not want the geometry modified in place, first `clone()` it and
+ * then use this function on the clone.
+ *
+ * @param {import("../proj.js").ProjectionLike} source The current projection. Can be a
+ * string identifier or a {@link module:ol/proj/Projection~Projection} object.
+ * @param {import("../proj.js").ProjectionLike} destination The desired projection. Can be a
+ * string identifier or a {@link module:ol/proj/Projection~Projection} object.
+ * @return {Geometry} This geometry. Note that original geometry is
+ * modified in place.
+ * @api
+ */
+
+
+ Geometry.prototype.transform = function (source, destination) {
+ /** @type {import("../proj/Projection.js").default} */
+ var sourceProj = (0, _proj.get)(source);
+ var transformFn = sourceProj.getUnits() == _Units.default.TILE_PIXELS ? function (inCoordinates, outCoordinates, stride) {
+ var pixelExtent = sourceProj.getExtent();
+ var projectedExtent = sourceProj.getWorldExtent();
+ var scale = (0, _extent.getHeight)(projectedExtent) / (0, _extent.getHeight)(pixelExtent);
+ (0, _transform.compose)(tmpTransform, projectedExtent[0], projectedExtent[3], scale, -scale, 0, 0, 0);
+ (0, _transform2.transform2D)(inCoordinates, 0, inCoordinates.length, stride, tmpTransform, outCoordinates);
+ return (0, _proj.getTransform)(sourceProj, destination)(inCoordinates, outCoordinates, stride);
+ } : (0, _proj.getTransform)(sourceProj, destination);
+ this.applyTransform(transformFn);
+ return this;
+ };
+
+ return Geometry;
+}(_Object.default);
+
+var _default = Geometry;
+exports.default = _default;
+},{"../Object.js":"../../../node_modules/ol/Object.js","../proj/Units.js":"../../../node_modules/ol/proj/Units.js","../util.js":"../../../node_modules/ol/util.js","../transform.js":"../../../node_modules/ol/transform.js","../extent.js":"../../../node_modules/ol/extent.js","../proj.js":"../../../node_modules/ol/proj.js","../functions.js":"../../../node_modules/ol/functions.js","./flat/transform.js":"../../../node_modules/ol/geom/flat/transform.js"}],"../../../node_modules/ol/geom/SimpleGeometry.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.getStrideForLayout = getStrideForLayout;
+exports.transformGeom2D = transformGeom2D;
+exports.default = void 0;
+
+var _Geometry = _interopRequireDefault(require("./Geometry.js"));
+
+var _GeometryLayout = _interopRequireDefault(require("./GeometryLayout.js"));
+
+var _util = require("../util.js");
+
+var _extent = require("../extent.js");
+
+var _transform = require("./flat/transform.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/geom/SimpleGeometry
+ */
+
+
+/**
+ * @classdesc
+ * Abstract base class; only used for creating subclasses; do not instantiate
+ * in apps, as cannot be rendered.
+ *
+ * @abstract
+ * @api
+ */
+var SimpleGeometry =
+/** @class */
+function (_super) {
+ __extends(SimpleGeometry, _super);
+
+ function SimpleGeometry() {
+ var _this = _super.call(this) || this;
+ /**
+ * @protected
+ * @type {import("./GeometryLayout.js").default}
+ */
+
+
+ _this.layout = _GeometryLayout.default.XY;
+ /**
+ * @protected
+ * @type {number}
+ */
+
+ _this.stride = 2;
+ /**
+ * @protected
+ * @type {Array<number>}
+ */
+
+ _this.flatCoordinates = null;
+ return _this;
+ }
+ /**
+ * @param {import("../extent.js").Extent} extent Extent.
+ * @protected
+ * @return {import("../extent.js").Extent} extent Extent.
+ */
+
+
+ SimpleGeometry.prototype.computeExtent = function (extent) {
+ return (0, _extent.createOrUpdateFromFlatCoordinates)(this.flatCoordinates, 0, this.flatCoordinates.length, this.stride, extent);
+ };
+ /**
+ * @abstract
+ * @return {Array<*>} Coordinates.
+ */
+
+
+ SimpleGeometry.prototype.getCoordinates = function () {
+ return (0, _util.abstract)();
+ };
+ /**
+ * Return the first coordinate of the geometry.
+ * @return {import("../coordinate.js").Coordinate} First coordinate.
+ * @api
+ */
+
+
+ SimpleGeometry.prototype.getFirstCoordinate = function () {
+ return this.flatCoordinates.slice(0, this.stride);
+ };
+ /**
+ * @return {Array<number>} Flat coordinates.
+ */
+
+
+ SimpleGeometry.prototype.getFlatCoordinates = function () {
+ return this.flatCoordinates;
+ };
+ /**
+ * Return the last coordinate of the geometry.
+ * @return {import("../coordinate.js").Coordinate} Last point.
+ * @api
+ */
+
+
+ SimpleGeometry.prototype.getLastCoordinate = function () {
+ return this.flatCoordinates.slice(this.flatCoordinates.length - this.stride);
+ };
+ /**
+ * Return the {@link module:ol/geom/GeometryLayout layout} of the geometry.
+ * @return {import("./GeometryLayout.js").default} Layout.
+ * @api
+ */
+
+
+ SimpleGeometry.prototype.getLayout = function () {
+ return this.layout;
+ };
+ /**
+ * Create a simplified version of this geometry using the Douglas Peucker algorithm.
+ * @param {number} squaredTolerance Squared tolerance.
+ * @return {SimpleGeometry} Simplified geometry.
+ */
+
+
+ SimpleGeometry.prototype.getSimplifiedGeometry = function (squaredTolerance) {
+ if (this.simplifiedGeometryRevision !== this.getRevision()) {
+ this.simplifiedGeometryMaxMinSquaredTolerance = 0;
+ this.simplifiedGeometryRevision = this.getRevision();
+ } // If squaredTolerance is negative or if we know that simplification will not
+ // have any effect then just return this.
+
+
+ if (squaredTolerance < 0 || this.simplifiedGeometryMaxMinSquaredTolerance !== 0 && squaredTolerance <= this.simplifiedGeometryMaxMinSquaredTolerance) {
+ return this;
+ }
+
+ var simplifiedGeometry = this.getSimplifiedGeometryInternal(squaredTolerance);
+ var simplifiedFlatCoordinates = simplifiedGeometry.getFlatCoordinates();
+
+ if (simplifiedFlatCoordinates.length < this.flatCoordinates.length) {
+ return simplifiedGeometry;
+ } else {
+ // Simplification did not actually remove any coordinates. We now know
+ // that any calls to getSimplifiedGeometry with a squaredTolerance less
+ // than or equal to the current squaredTolerance will also not have any
+ // effect. This allows us to short circuit simplification (saving CPU
+ // cycles) and prevents the cache of simplified geometries from filling
+ // up with useless identical copies of this geometry (saving memory).
+ this.simplifiedGeometryMaxMinSquaredTolerance = squaredTolerance;
+ return this;
+ }
+ };
+ /**
+ * @param {number} squaredTolerance Squared tolerance.
+ * @return {SimpleGeometry} Simplified geometry.
+ * @protected
+ */
+
+
+ SimpleGeometry.prototype.getSimplifiedGeometryInternal = function (squaredTolerance) {
+ return this;
+ };
+ /**
+ * @return {number} Stride.
+ */
+
+
+ SimpleGeometry.prototype.getStride = function () {
+ return this.stride;
+ };
+ /**
+ * @param {import("./GeometryLayout.js").default} layout Layout.
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ */
+
+
+ SimpleGeometry.prototype.setFlatCoordinates = function (layout, flatCoordinates) {
+ this.stride = getStrideForLayout(layout);
+ this.layout = layout;
+ this.flatCoordinates = flatCoordinates;
+ };
+ /**
+ * @abstract
+ * @param {!Array<*>} coordinates Coordinates.
+ * @param {import("./GeometryLayout.js").default=} opt_layout Layout.
+ */
+
+
+ SimpleGeometry.prototype.setCoordinates = function (coordinates, opt_layout) {
+ (0, _util.abstract)();
+ };
+ /**
+ * @param {import("./GeometryLayout.js").default|undefined} layout Layout.
+ * @param {Array<*>} coordinates Coordinates.
+ * @param {number} nesting Nesting.
+ * @protected
+ */
+
+
+ SimpleGeometry.prototype.setLayout = function (layout, coordinates, nesting) {
+ /** @type {number} */
+ var stride;
+
+ if (layout) {
+ stride = getStrideForLayout(layout);
+ } else {
+ for (var i = 0; i < nesting; ++i) {
+ if (coordinates.length === 0) {
+ this.layout = _GeometryLayout.default.XY;
+ this.stride = 2;
+ return;
+ } else {
+ coordinates =
+ /** @type {Array} */
+ coordinates[0];
+ }
+ }
+
+ stride = coordinates.length;
+ layout = getLayoutForStride(stride);
+ }
+
+ this.layout = layout;
+ this.stride = stride;
+ };
+ /**
+ * Apply a transform function to the coordinates of the geometry.
+ * The geometry is modified in place.
+ * If you do not want the geometry modified in place, first `clone()` it and
+ * then use this function on the clone.
+ * @param {import("../proj.js").TransformFunction} transformFn Transform function.
+ * Called with a flat array of geometry coordinates.
+ * @api
+ */
+
+
+ SimpleGeometry.prototype.applyTransform = function (transformFn) {
+ if (this.flatCoordinates) {
+ transformFn(this.flatCoordinates, this.flatCoordinates, this.stride);
+ this.changed();
+ }
+ };
+ /**
+ * Rotate the geometry around a given coordinate. This modifies the geometry
+ * coordinates in place.
+ * @param {number} angle Rotation angle in radians.
+ * @param {import("../coordinate.js").Coordinate} anchor The rotation center.
+ * @api
+ */
+
+
+ SimpleGeometry.prototype.rotate = function (angle, anchor) {
+ var flatCoordinates = this.getFlatCoordinates();
+
+ if (flatCoordinates) {
+ var stride = this.getStride();
+ (0, _transform.rotate)(flatCoordinates, 0, flatCoordinates.length, stride, angle, anchor, flatCoordinates);
+ this.changed();
+ }
+ };
+ /**
+ * Scale the geometry (with an optional origin). This modifies the geometry
+ * coordinates in place.
+ * @param {number} sx The scaling factor in the x-direction.
+ * @param {number=} opt_sy The scaling factor in the y-direction (defaults to sx).
+ * @param {import("../coordinate.js").Coordinate=} opt_anchor The scale origin (defaults to the center
+ * of the geometry extent).
+ * @api
+ */
+
+
+ SimpleGeometry.prototype.scale = function (sx, opt_sy, opt_anchor) {
+ var sy = opt_sy;
+
+ if (sy === undefined) {
+ sy = sx;
+ }
+
+ var anchor = opt_anchor;
+
+ if (!anchor) {
+ anchor = (0, _extent.getCenter)(this.getExtent());
+ }
+
+ var flatCoordinates = this.getFlatCoordinates();
+
+ if (flatCoordinates) {
+ var stride = this.getStride();
+ (0, _transform.scale)(flatCoordinates, 0, flatCoordinates.length, stride, sx, sy, anchor, flatCoordinates);
+ this.changed();
+ }
+ };
+ /**
+ * Translate the geometry. This modifies the geometry coordinates in place. If
+ * instead you want a new geometry, first `clone()` this geometry.
+ * @param {number} deltaX Delta X.
+ * @param {number} deltaY Delta Y.
+ * @api
+ */
+
+
+ SimpleGeometry.prototype.translate = function (deltaX, deltaY) {
+ var flatCoordinates = this.getFlatCoordinates();
+
+ if (flatCoordinates) {
+ var stride = this.getStride();
+ (0, _transform.translate)(flatCoordinates, 0, flatCoordinates.length, stride, deltaX, deltaY, flatCoordinates);
+ this.changed();
+ }
+ };
+
+ return SimpleGeometry;
+}(_Geometry.default);
+/**
+ * @param {number} stride Stride.
+ * @return {import("./GeometryLayout.js").default} layout Layout.
+ */
+
+
+function getLayoutForStride(stride) {
+ var layout;
+
+ if (stride == 2) {
+ layout = _GeometryLayout.default.XY;
+ } else if (stride == 3) {
+ layout = _GeometryLayout.default.XYZ;
+ } else if (stride == 4) {
+ layout = _GeometryLayout.default.XYZM;
+ }
+
+ return (
+ /** @type {import("./GeometryLayout.js").default} */
+ layout
+ );
+}
+/**
+ * @param {import("./GeometryLayout.js").default} layout Layout.
+ * @return {number} Stride.
+ */
+
+
+function getStrideForLayout(layout) {
+ var stride;
+
+ if (layout == _GeometryLayout.default.XY) {
+ stride = 2;
+ } else if (layout == _GeometryLayout.default.XYZ || layout == _GeometryLayout.default.XYM) {
+ stride = 3;
+ } else if (layout == _GeometryLayout.default.XYZM) {
+ stride = 4;
+ }
+
+ return (
+ /** @type {number} */
+ stride
+ );
+}
+/**
+ * @param {SimpleGeometry} simpleGeometry Simple geometry.
+ * @param {import("../transform.js").Transform} transform Transform.
+ * @param {Array<number>=} opt_dest Destination.
+ * @return {Array<number>} Transformed flat coordinates.
+ */
+
+
+function transformGeom2D(simpleGeometry, transform, opt_dest) {
+ var flatCoordinates = simpleGeometry.getFlatCoordinates();
+
+ if (!flatCoordinates) {
+ return null;
+ } else {
+ var stride = simpleGeometry.getStride();
+ return (0, _transform.transform2D)(flatCoordinates, 0, flatCoordinates.length, stride, transform, opt_dest);
+ }
+}
+
+var _default = SimpleGeometry;
+exports.default = _default;
+},{"./Geometry.js":"../../../node_modules/ol/geom/Geometry.js","./GeometryLayout.js":"../../../node_modules/ol/geom/GeometryLayout.js","../util.js":"../../../node_modules/ol/util.js","../extent.js":"../../../node_modules/ol/extent.js","./flat/transform.js":"../../../node_modules/ol/geom/flat/transform.js"}],"../../../node_modules/ol/geom/flat/closest.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.maxSquaredDelta = maxSquaredDelta;
+exports.arrayMaxSquaredDelta = arrayMaxSquaredDelta;
+exports.multiArrayMaxSquaredDelta = multiArrayMaxSquaredDelta;
+exports.assignClosestPoint = assignClosestPoint;
+exports.assignClosestArrayPoint = assignClosestArrayPoint;
+exports.assignClosestMultiArrayPoint = assignClosestMultiArrayPoint;
+
+var _math = require("../../math.js");
+
+/**
+ * @module ol/geom/flat/closest
+ */
+
+/**
+ * Returns the point on the 2D line segment flatCoordinates[offset1] to
+ * flatCoordinates[offset2] that is closest to the point (x, y). Extra
+ * dimensions are linearly interpolated.
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset1 Offset 1.
+ * @param {number} offset2 Offset 2.
+ * @param {number} stride Stride.
+ * @param {number} x X.
+ * @param {number} y Y.
+ * @param {Array<number>} closestPoint Closest point.
+ */
+function assignClosest(flatCoordinates, offset1, offset2, stride, x, y, closestPoint) {
+ var x1 = flatCoordinates[offset1];
+ var y1 = flatCoordinates[offset1 + 1];
+ var dx = flatCoordinates[offset2] - x1;
+ var dy = flatCoordinates[offset2 + 1] - y1;
+ var offset;
+
+ if (dx === 0 && dy === 0) {
+ offset = offset1;
+ } else {
+ var t = ((x - x1) * dx + (y - y1) * dy) / (dx * dx + dy * dy);
+
+ if (t > 1) {
+ offset = offset2;
+ } else if (t > 0) {
+ for (var i = 0; i < stride; ++i) {
+ closestPoint[i] = (0, _math.lerp)(flatCoordinates[offset1 + i], flatCoordinates[offset2 + i], t);
+ }
+
+ closestPoint.length = stride;
+ return;
+ } else {
+ offset = offset1;
+ }
+ }
+
+ for (var i = 0; i < stride; ++i) {
+ closestPoint[i] = flatCoordinates[offset + i];
+ }
+
+ closestPoint.length = stride;
+}
+/**
+ * Return the squared of the largest distance between any pair of consecutive
+ * coordinates.
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @param {number} max Max squared delta.
+ * @return {number} Max squared delta.
+ */
+
+
+function maxSquaredDelta(flatCoordinates, offset, end, stride, max) {
+ var x1 = flatCoordinates[offset];
+ var y1 = flatCoordinates[offset + 1];
+
+ for (offset += stride; offset < end; offset += stride) {
+ var x2 = flatCoordinates[offset];
+ var y2 = flatCoordinates[offset + 1];
+ var squaredDelta = (0, _math.squaredDistance)(x1, y1, x2, y2);
+
+ if (squaredDelta > max) {
+ max = squaredDelta;
+ }
+
+ x1 = x2;
+ y1 = y2;
+ }
+
+ return max;
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {Array<number>} ends Ends.
+ * @param {number} stride Stride.
+ * @param {number} max Max squared delta.
+ * @return {number} Max squared delta.
+ */
+
+
+function arrayMaxSquaredDelta(flatCoordinates, offset, ends, stride, max) {
+ for (var i = 0, ii = ends.length; i < ii; ++i) {
+ var end = ends[i];
+ max = maxSquaredDelta(flatCoordinates, offset, end, stride, max);
+ offset = end;
+ }
+
+ return max;
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {Array<Array<number>>} endss Endss.
+ * @param {number} stride Stride.
+ * @param {number} max Max squared delta.
+ * @return {number} Max squared delta.
+ */
+
+
+function multiArrayMaxSquaredDelta(flatCoordinates, offset, endss, stride, max) {
+ for (var i = 0, ii = endss.length; i < ii; ++i) {
+ var ends = endss[i];
+ max = arrayMaxSquaredDelta(flatCoordinates, offset, ends, stride, max);
+ offset = ends[ends.length - 1];
+ }
+
+ return max;
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @param {number} maxDelta Max delta.
+ * @param {boolean} isRing Is ring.
+ * @param {number} x X.
+ * @param {number} y Y.
+ * @param {Array<number>} closestPoint Closest point.
+ * @param {number} minSquaredDistance Minimum squared distance.
+ * @param {Array<number>=} opt_tmpPoint Temporary point object.
+ * @return {number} Minimum squared distance.
+ */
+
+
+function assignClosestPoint(flatCoordinates, offset, end, stride, maxDelta, isRing, x, y, closestPoint, minSquaredDistance, opt_tmpPoint) {
+ if (offset == end) {
+ return minSquaredDistance;
+ }
+
+ var i, squaredDistance;
+
+ if (maxDelta === 0) {
+ // All points are identical, so just test the first point.
+ squaredDistance = (0, _math.squaredDistance)(x, y, flatCoordinates[offset], flatCoordinates[offset + 1]);
+
+ if (squaredDistance < minSquaredDistance) {
+ for (i = 0; i < stride; ++i) {
+ closestPoint[i] = flatCoordinates[offset + i];
+ }
+
+ closestPoint.length = stride;
+ return squaredDistance;
+ } else {
+ return minSquaredDistance;
+ }
+ }
+
+ var tmpPoint = opt_tmpPoint ? opt_tmpPoint : [NaN, NaN];
+ var index = offset + stride;
+
+ while (index < end) {
+ assignClosest(flatCoordinates, index - stride, index, stride, x, y, tmpPoint);
+ squaredDistance = (0, _math.squaredDistance)(x, y, tmpPoint[0], tmpPoint[1]);
+
+ if (squaredDistance < minSquaredDistance) {
+ minSquaredDistance = squaredDistance;
+
+ for (i = 0; i < stride; ++i) {
+ closestPoint[i] = tmpPoint[i];
+ }
+
+ closestPoint.length = stride;
+ index += stride;
+ } else {
+ // Skip ahead multiple points, because we know that all the skipped
+ // points cannot be any closer than the closest point we have found so
+ // far. We know this because we know how close the current point is, how
+ // close the closest point we have found so far is, and the maximum
+ // distance between consecutive points. For example, if we're currently
+ // at distance 10, the best we've found so far is 3, and that the maximum
+ // distance between consecutive points is 2, then we'll need to skip at
+ // least (10 - 3) / 2 == 3 (rounded down) points to have any chance of
+ // finding a closer point. We use Math.max(..., 1) to ensure that we
+ // always advance at least one point, to avoid an infinite loop.
+ index += stride * Math.max((Math.sqrt(squaredDistance) - Math.sqrt(minSquaredDistance)) / maxDelta | 0, 1);
+ }
+ }
+
+ if (isRing) {
+ // Check the closing segment.
+ assignClosest(flatCoordinates, end - stride, offset, stride, x, y, tmpPoint);
+ squaredDistance = (0, _math.squaredDistance)(x, y, tmpPoint[0], tmpPoint[1]);
+
+ if (squaredDistance < minSquaredDistance) {
+ minSquaredDistance = squaredDistance;
+
+ for (i = 0; i < stride; ++i) {
+ closestPoint[i] = tmpPoint[i];
+ }
+
+ closestPoint.length = stride;
+ }
+ }
+
+ return minSquaredDistance;
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {Array<number>} ends Ends.
+ * @param {number} stride Stride.
+ * @param {number} maxDelta Max delta.
+ * @param {boolean} isRing Is ring.
+ * @param {number} x X.
+ * @param {number} y Y.
+ * @param {Array<number>} closestPoint Closest point.
+ * @param {number} minSquaredDistance Minimum squared distance.
+ * @param {Array<number>=} opt_tmpPoint Temporary point object.
+ * @return {number} Minimum squared distance.
+ */
+
+
+function assignClosestArrayPoint(flatCoordinates, offset, ends, stride, maxDelta, isRing, x, y, closestPoint, minSquaredDistance, opt_tmpPoint) {
+ var tmpPoint = opt_tmpPoint ? opt_tmpPoint : [NaN, NaN];
+
+ for (var i = 0, ii = ends.length; i < ii; ++i) {
+ var end = ends[i];
+ minSquaredDistance = assignClosestPoint(flatCoordinates, offset, end, stride, maxDelta, isRing, x, y, closestPoint, minSquaredDistance, tmpPoint);
+ offset = end;
+ }
+
+ return minSquaredDistance;
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {Array<Array<number>>} endss Endss.
+ * @param {number} stride Stride.
+ * @param {number} maxDelta Max delta.
+ * @param {boolean} isRing Is ring.
+ * @param {number} x X.
+ * @param {number} y Y.
+ * @param {Array<number>} closestPoint Closest point.
+ * @param {number} minSquaredDistance Minimum squared distance.
+ * @param {Array<number>=} opt_tmpPoint Temporary point object.
+ * @return {number} Minimum squared distance.
+ */
+
+
+function assignClosestMultiArrayPoint(flatCoordinates, offset, endss, stride, maxDelta, isRing, x, y, closestPoint, minSquaredDistance, opt_tmpPoint) {
+ var tmpPoint = opt_tmpPoint ? opt_tmpPoint : [NaN, NaN];
+
+ for (var i = 0, ii = endss.length; i < ii; ++i) {
+ var ends = endss[i];
+ minSquaredDistance = assignClosestArrayPoint(flatCoordinates, offset, ends, stride, maxDelta, isRing, x, y, closestPoint, minSquaredDistance, tmpPoint);
+ offset = ends[ends.length - 1];
+ }
+
+ return minSquaredDistance;
+}
+},{"../../math.js":"../../../node_modules/ol/math.js"}],"../../../node_modules/ol/geom/flat/deflate.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.deflateCoordinate = deflateCoordinate;
+exports.deflateCoordinates = deflateCoordinates;
+exports.deflateCoordinatesArray = deflateCoordinatesArray;
+exports.deflateMultiCoordinatesArray = deflateMultiCoordinatesArray;
+
+/**
+ * @module ol/geom/flat/deflate
+ */
+
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {import("../../coordinate.js").Coordinate} coordinate Coordinate.
+ * @param {number} stride Stride.
+ * @return {number} offset Offset.
+ */
+function deflateCoordinate(flatCoordinates, offset, coordinate, stride) {
+ for (var i = 0, ii = coordinate.length; i < ii; ++i) {
+ flatCoordinates[offset++] = coordinate[i];
+ }
+
+ return offset;
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {Array<import("../../coordinate.js").Coordinate>} coordinates Coordinates.
+ * @param {number} stride Stride.
+ * @return {number} offset Offset.
+ */
+
+
+function deflateCoordinates(flatCoordinates, offset, coordinates, stride) {
+ for (var i = 0, ii = coordinates.length; i < ii; ++i) {
+ var coordinate = coordinates[i];
+
+ for (var j = 0; j < stride; ++j) {
+ flatCoordinates[offset++] = coordinate[j];
+ }
+ }
+
+ return offset;
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {Array<Array<import("../../coordinate.js").Coordinate>>} coordinatess Coordinatess.
+ * @param {number} stride Stride.
+ * @param {Array<number>=} opt_ends Ends.
+ * @return {Array<number>} Ends.
+ */
+
+
+function deflateCoordinatesArray(flatCoordinates, offset, coordinatess, stride, opt_ends) {
+ var ends = opt_ends ? opt_ends : [];
+ var i = 0;
+
+ for (var j = 0, jj = coordinatess.length; j < jj; ++j) {
+ var end = deflateCoordinates(flatCoordinates, offset, coordinatess[j], stride);
+ ends[i++] = end;
+ offset = end;
+ }
+
+ ends.length = i;
+ return ends;
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {Array<Array<Array<import("../../coordinate.js").Coordinate>>>} coordinatesss Coordinatesss.
+ * @param {number} stride Stride.
+ * @param {Array<Array<number>>=} opt_endss Endss.
+ * @return {Array<Array<number>>} Endss.
+ */
+
+
+function deflateMultiCoordinatesArray(flatCoordinates, offset, coordinatesss, stride, opt_endss) {
+ var endss = opt_endss ? opt_endss : [];
+ var i = 0;
+
+ for (var j = 0, jj = coordinatesss.length; j < jj; ++j) {
+ var ends = deflateCoordinatesArray(flatCoordinates, offset, coordinatesss[j], stride, endss[i]);
+ endss[i++] = ends;
+ offset = ends[ends.length - 1];
+ }
+
+ endss.length = i;
+ return endss;
+}
+},{}],"../../../node_modules/ol/geom/flat/simplify.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.simplifyLineString = simplifyLineString;
+exports.douglasPeucker = douglasPeucker;
+exports.douglasPeuckerArray = douglasPeuckerArray;
+exports.douglasPeuckerMultiArray = douglasPeuckerMultiArray;
+exports.radialDistance = radialDistance;
+exports.snap = snap;
+exports.quantize = quantize;
+exports.quantizeArray = quantizeArray;
+exports.quantizeMultiArray = quantizeMultiArray;
+
+var _math = require("../../math.js");
+
+/**
+ * @module ol/geom/flat/simplify
+ */
+// Based on simplify-js https://github.com/mourner/simplify-js
+// Copyright (c) 2012, Vladimir Agafonkin
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+// 1. Redistributions of source code must retain the above copyright notice,
+// this list of conditions and the following disclaimer.
+//
+// 2. Redistributions in binary form must reproduce the above copyright
+// notice, this list of conditions and the following disclaimer in the
+// documentation and/or other materials provided with the distribution.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @param {number} squaredTolerance Squared tolerance.
+ * @param {boolean} highQuality Highest quality.
+ * @param {Array<number>=} opt_simplifiedFlatCoordinates Simplified flat
+ * coordinates.
+ * @return {Array<number>} Simplified line string.
+ */
+function simplifyLineString(flatCoordinates, offset, end, stride, squaredTolerance, highQuality, opt_simplifiedFlatCoordinates) {
+ var simplifiedFlatCoordinates = opt_simplifiedFlatCoordinates !== undefined ? opt_simplifiedFlatCoordinates : [];
+
+ if (!highQuality) {
+ end = radialDistance(flatCoordinates, offset, end, stride, squaredTolerance, simplifiedFlatCoordinates, 0);
+ flatCoordinates = simplifiedFlatCoordinates;
+ offset = 0;
+ stride = 2;
+ }
+
+ simplifiedFlatCoordinates.length = douglasPeucker(flatCoordinates, offset, end, stride, squaredTolerance, simplifiedFlatCoordinates, 0);
+ return simplifiedFlatCoordinates;
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @param {number} squaredTolerance Squared tolerance.
+ * @param {Array<number>} simplifiedFlatCoordinates Simplified flat
+ * coordinates.
+ * @param {number} simplifiedOffset Simplified offset.
+ * @return {number} Simplified offset.
+ */
+
+
+function douglasPeucker(flatCoordinates, offset, end, stride, squaredTolerance, simplifiedFlatCoordinates, simplifiedOffset) {
+ var n = (end - offset) / stride;
+
+ if (n < 3) {
+ for (; offset < end; offset += stride) {
+ simplifiedFlatCoordinates[simplifiedOffset++] = flatCoordinates[offset];
+ simplifiedFlatCoordinates[simplifiedOffset++] = flatCoordinates[offset + 1];
+ }
+
+ return simplifiedOffset;
+ }
+ /** @type {Array<number>} */
+
+
+ var markers = new Array(n);
+ markers[0] = 1;
+ markers[n - 1] = 1;
+ /** @type {Array<number>} */
+
+ var stack = [offset, end - stride];
+ var index = 0;
+
+ while (stack.length > 0) {
+ var last = stack.pop();
+ var first = stack.pop();
+ var maxSquaredDistance = 0;
+ var x1 = flatCoordinates[first];
+ var y1 = flatCoordinates[first + 1];
+ var x2 = flatCoordinates[last];
+ var y2 = flatCoordinates[last + 1];
+
+ for (var i = first + stride; i < last; i += stride) {
+ var x = flatCoordinates[i];
+ var y = flatCoordinates[i + 1];
+ var squaredDistance_1 = (0, _math.squaredSegmentDistance)(x, y, x1, y1, x2, y2);
+
+ if (squaredDistance_1 > maxSquaredDistance) {
+ index = i;
+ maxSquaredDistance = squaredDistance_1;
+ }
+ }
+
+ if (maxSquaredDistance > squaredTolerance) {
+ markers[(index - offset) / stride] = 1;
+
+ if (first + stride < index) {
+ stack.push(first, index);
+ }
+
+ if (index + stride < last) {
+ stack.push(index, last);
+ }
+ }
+ }
+
+ for (var i = 0; i < n; ++i) {
+ if (markers[i]) {
+ simplifiedFlatCoordinates[simplifiedOffset++] = flatCoordinates[offset + i * stride];
+ simplifiedFlatCoordinates[simplifiedOffset++] = flatCoordinates[offset + i * stride + 1];
+ }
+ }
+
+ return simplifiedOffset;
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {Array<number>} ends Ends.
+ * @param {number} stride Stride.
+ * @param {number} squaredTolerance Squared tolerance.
+ * @param {Array<number>} simplifiedFlatCoordinates Simplified flat
+ * coordinates.
+ * @param {number} simplifiedOffset Simplified offset.
+ * @param {Array<number>} simplifiedEnds Simplified ends.
+ * @return {number} Simplified offset.
+ */
+
+
+function douglasPeuckerArray(flatCoordinates, offset, ends, stride, squaredTolerance, simplifiedFlatCoordinates, simplifiedOffset, simplifiedEnds) {
+ for (var i = 0, ii = ends.length; i < ii; ++i) {
+ var end = ends[i];
+ simplifiedOffset = douglasPeucker(flatCoordinates, offset, end, stride, squaredTolerance, simplifiedFlatCoordinates, simplifiedOffset);
+ simplifiedEnds.push(simplifiedOffset);
+ offset = end;
+ }
+
+ return simplifiedOffset;
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {Array<Array<number>>} endss Endss.
+ * @param {number} stride Stride.
+ * @param {number} squaredTolerance Squared tolerance.
+ * @param {Array<number>} simplifiedFlatCoordinates Simplified flat
+ * coordinates.
+ * @param {number} simplifiedOffset Simplified offset.
+ * @param {Array<Array<number>>} simplifiedEndss Simplified endss.
+ * @return {number} Simplified offset.
+ */
+
+
+function douglasPeuckerMultiArray(flatCoordinates, offset, endss, stride, squaredTolerance, simplifiedFlatCoordinates, simplifiedOffset, simplifiedEndss) {
+ for (var i = 0, ii = endss.length; i < ii; ++i) {
+ var ends = endss[i];
+ var simplifiedEnds = [];
+ simplifiedOffset = douglasPeuckerArray(flatCoordinates, offset, ends, stride, squaredTolerance, simplifiedFlatCoordinates, simplifiedOffset, simplifiedEnds);
+ simplifiedEndss.push(simplifiedEnds);
+ offset = ends[ends.length - 1];
+ }
+
+ return simplifiedOffset;
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @param {number} squaredTolerance Squared tolerance.
+ * @param {Array<number>} simplifiedFlatCoordinates Simplified flat
+ * coordinates.
+ * @param {number} simplifiedOffset Simplified offset.
+ * @return {number} Simplified offset.
+ */
+
+
+function radialDistance(flatCoordinates, offset, end, stride, squaredTolerance, simplifiedFlatCoordinates, simplifiedOffset) {
+ if (end <= offset + stride) {
+ // zero or one point, no simplification possible, so copy and return
+ for (; offset < end; offset += stride) {
+ simplifiedFlatCoordinates[simplifiedOffset++] = flatCoordinates[offset];
+ simplifiedFlatCoordinates[simplifiedOffset++] = flatCoordinates[offset + 1];
+ }
+
+ return simplifiedOffset;
+ }
+
+ var x1 = flatCoordinates[offset];
+ var y1 = flatCoordinates[offset + 1]; // copy first point
+
+ simplifiedFlatCoordinates[simplifiedOffset++] = x1;
+ simplifiedFlatCoordinates[simplifiedOffset++] = y1;
+ var x2 = x1;
+ var y2 = y1;
+
+ for (offset += stride; offset < end; offset += stride) {
+ x2 = flatCoordinates[offset];
+ y2 = flatCoordinates[offset + 1];
+
+ if ((0, _math.squaredDistance)(x1, y1, x2, y2) > squaredTolerance) {
+ // copy point at offset
+ simplifiedFlatCoordinates[simplifiedOffset++] = x2;
+ simplifiedFlatCoordinates[simplifiedOffset++] = y2;
+ x1 = x2;
+ y1 = y2;
+ }
+ }
+
+ if (x2 != x1 || y2 != y1) {
+ // copy last point
+ simplifiedFlatCoordinates[simplifiedOffset++] = x2;
+ simplifiedFlatCoordinates[simplifiedOffset++] = y2;
+ }
+
+ return simplifiedOffset;
+}
+/**
+ * @param {number} value Value.
+ * @param {number} tolerance Tolerance.
+ * @return {number} Rounded value.
+ */
+
+
+function snap(value, tolerance) {
+ return tolerance * Math.round(value / tolerance);
+}
+/**
+ * Simplifies a line string using an algorithm designed by Tim Schaub.
+ * Coordinates are snapped to the nearest value in a virtual grid and
+ * consecutive duplicate coordinates are discarded. This effectively preserves
+ * topology as the simplification of any subsection of a line string is
+ * independent of the rest of the line string. This means that, for examples,
+ * the common edge between two polygons will be simplified to the same line
+ * string independently in both polygons. This implementation uses a single
+ * pass over the coordinates and eliminates intermediate collinear points.
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @param {number} tolerance Tolerance.
+ * @param {Array<number>} simplifiedFlatCoordinates Simplified flat
+ * coordinates.
+ * @param {number} simplifiedOffset Simplified offset.
+ * @return {number} Simplified offset.
+ */
+
+
+function quantize(flatCoordinates, offset, end, stride, tolerance, simplifiedFlatCoordinates, simplifiedOffset) {
+ // do nothing if the line is empty
+ if (offset == end) {
+ return simplifiedOffset;
+ } // snap the first coordinate (P1)
+
+
+ var x1 = snap(flatCoordinates[offset], tolerance);
+ var y1 = snap(flatCoordinates[offset + 1], tolerance);
+ offset += stride; // add the first coordinate to the output
+
+ simplifiedFlatCoordinates[simplifiedOffset++] = x1;
+ simplifiedFlatCoordinates[simplifiedOffset++] = y1; // find the next coordinate that does not snap to the same value as the first
+ // coordinate (P2)
+
+ var x2, y2;
+
+ do {
+ x2 = snap(flatCoordinates[offset], tolerance);
+ y2 = snap(flatCoordinates[offset + 1], tolerance);
+ offset += stride;
+
+ if (offset == end) {
+ // all coordinates snap to the same value, the line collapses to a point
+ // push the last snapped value anyway to ensure that the output contains
+ // at least two points
+ // FIXME should we really return at least two points anyway?
+ simplifiedFlatCoordinates[simplifiedOffset++] = x2;
+ simplifiedFlatCoordinates[simplifiedOffset++] = y2;
+ return simplifiedOffset;
+ }
+ } while (x2 == x1 && y2 == y1);
+
+ while (offset < end) {
+ // snap the next coordinate (P3)
+ var x3 = snap(flatCoordinates[offset], tolerance);
+ var y3 = snap(flatCoordinates[offset + 1], tolerance);
+ offset += stride; // skip P3 if it is equal to P2
+
+ if (x3 == x2 && y3 == y2) {
+ continue;
+ } // calculate the delta between P1 and P2
+
+
+ var dx1 = x2 - x1;
+ var dy1 = y2 - y1; // calculate the delta between P3 and P1
+
+ var dx2 = x3 - x1;
+ var dy2 = y3 - y1; // if P1, P2, and P3 are colinear and P3 is further from P1 than P2 is from
+ // P1 in the same direction then P2 is on the straight line between P1 and
+ // P3
+
+ if (dx1 * dy2 == dy1 * dx2 && (dx1 < 0 && dx2 < dx1 || dx1 == dx2 || dx1 > 0 && dx2 > dx1) && (dy1 < 0 && dy2 < dy1 || dy1 == dy2 || dy1 > 0 && dy2 > dy1)) {
+ // discard P2 and set P2 = P3
+ x2 = x3;
+ y2 = y3;
+ continue;
+ } // either P1, P2, and P3 are not colinear, or they are colinear but P3 is
+ // between P3 and P1 or on the opposite half of the line to P2. add P2,
+ // and continue with P1 = P2 and P2 = P3
+
+
+ simplifiedFlatCoordinates[simplifiedOffset++] = x2;
+ simplifiedFlatCoordinates[simplifiedOffset++] = y2;
+ x1 = x2;
+ y1 = y2;
+ x2 = x3;
+ y2 = y3;
+ } // add the last point (P2)
+
+
+ simplifiedFlatCoordinates[simplifiedOffset++] = x2;
+ simplifiedFlatCoordinates[simplifiedOffset++] = y2;
+ return simplifiedOffset;
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {Array<number>} ends Ends.
+ * @param {number} stride Stride.
+ * @param {number} tolerance Tolerance.
+ * @param {Array<number>} simplifiedFlatCoordinates Simplified flat
+ * coordinates.
+ * @param {number} simplifiedOffset Simplified offset.
+ * @param {Array<number>} simplifiedEnds Simplified ends.
+ * @return {number} Simplified offset.
+ */
+
+
+function quantizeArray(flatCoordinates, offset, ends, stride, tolerance, simplifiedFlatCoordinates, simplifiedOffset, simplifiedEnds) {
+ for (var i = 0, ii = ends.length; i < ii; ++i) {
+ var end = ends[i];
+ simplifiedOffset = quantize(flatCoordinates, offset, end, stride, tolerance, simplifiedFlatCoordinates, simplifiedOffset);
+ simplifiedEnds.push(simplifiedOffset);
+ offset = end;
+ }
+
+ return simplifiedOffset;
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {Array<Array<number>>} endss Endss.
+ * @param {number} stride Stride.
+ * @param {number} tolerance Tolerance.
+ * @param {Array<number>} simplifiedFlatCoordinates Simplified flat
+ * coordinates.
+ * @param {number} simplifiedOffset Simplified offset.
+ * @param {Array<Array<number>>} simplifiedEndss Simplified endss.
+ * @return {number} Simplified offset.
+ */
+
+
+function quantizeMultiArray(flatCoordinates, offset, endss, stride, tolerance, simplifiedFlatCoordinates, simplifiedOffset, simplifiedEndss) {
+ for (var i = 0, ii = endss.length; i < ii; ++i) {
+ var ends = endss[i];
+ var simplifiedEnds = [];
+ simplifiedOffset = quantizeArray(flatCoordinates, offset, ends, stride, tolerance, simplifiedFlatCoordinates, simplifiedOffset, simplifiedEnds);
+ simplifiedEndss.push(simplifiedEnds);
+ offset = ends[ends.length - 1];
+ }
+
+ return simplifiedOffset;
+}
+},{"../../math.js":"../../../node_modules/ol/math.js"}],"../../../node_modules/ol/geom/flat/inflate.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.inflateCoordinates = inflateCoordinates;
+exports.inflateCoordinatesArray = inflateCoordinatesArray;
+exports.inflateMultiCoordinatesArray = inflateMultiCoordinatesArray;
+
+/**
+ * @module ol/geom/flat/inflate
+ */
+
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @param {Array<import("../../coordinate.js").Coordinate>=} opt_coordinates Coordinates.
+ * @return {Array<import("../../coordinate.js").Coordinate>} Coordinates.
+ */
+function inflateCoordinates(flatCoordinates, offset, end, stride, opt_coordinates) {
+ var coordinates = opt_coordinates !== undefined ? opt_coordinates : [];
+ var i = 0;
+
+ for (var j = offset; j < end; j += stride) {
+ coordinates[i++] = flatCoordinates.slice(j, j + stride);
+ }
+
+ coordinates.length = i;
+ return coordinates;
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {Array<number>} ends Ends.
+ * @param {number} stride Stride.
+ * @param {Array<Array<import("../../coordinate.js").Coordinate>>=} opt_coordinatess Coordinatess.
+ * @return {Array<Array<import("../../coordinate.js").Coordinate>>} Coordinatess.
+ */
+
+
+function inflateCoordinatesArray(flatCoordinates, offset, ends, stride, opt_coordinatess) {
+ var coordinatess = opt_coordinatess !== undefined ? opt_coordinatess : [];
+ var i = 0;
+
+ for (var j = 0, jj = ends.length; j < jj; ++j) {
+ var end = ends[j];
+ coordinatess[i++] = inflateCoordinates(flatCoordinates, offset, end, stride, coordinatess[i]);
+ offset = end;
+ }
+
+ coordinatess.length = i;
+ return coordinatess;
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {Array<Array<number>>} endss Endss.
+ * @param {number} stride Stride.
+ * @param {Array<Array<Array<import("../../coordinate.js").Coordinate>>>=} opt_coordinatesss
+ * Coordinatesss.
+ * @return {Array<Array<Array<import("../../coordinate.js").Coordinate>>>} Coordinatesss.
+ */
+
+
+function inflateMultiCoordinatesArray(flatCoordinates, offset, endss, stride, opt_coordinatesss) {
+ var coordinatesss = opt_coordinatesss !== undefined ? opt_coordinatesss : [];
+ var i = 0;
+
+ for (var j = 0, jj = endss.length; j < jj; ++j) {
+ var ends = endss[j];
+ coordinatesss[i++] = inflateCoordinatesArray(flatCoordinates, offset, ends, stride, coordinatesss[i]);
+ offset = ends[ends.length - 1];
+ }
+
+ coordinatesss.length = i;
+ return coordinatesss;
+}
+},{}],"../../../node_modules/ol/geom/flat/area.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.linearRing = linearRing;
+exports.linearRings = linearRings;
+exports.linearRingss = linearRingss;
+
+/**
+ * @module ol/geom/flat/area
+ */
+
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @return {number} Area.
+ */
+function linearRing(flatCoordinates, offset, end, stride) {
+ var twiceArea = 0;
+ var x1 = flatCoordinates[end - stride];
+ var y1 = flatCoordinates[end - stride + 1];
+
+ for (; offset < end; offset += stride) {
+ var x2 = flatCoordinates[offset];
+ var y2 = flatCoordinates[offset + 1];
+ twiceArea += y1 * x2 - x1 * y2;
+ x1 = x2;
+ y1 = y2;
+ }
+
+ return twiceArea / 2;
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {Array<number>} ends Ends.
+ * @param {number} stride Stride.
+ * @return {number} Area.
+ */
+
+
+function linearRings(flatCoordinates, offset, ends, stride) {
+ var area = 0;
+
+ for (var i = 0, ii = ends.length; i < ii; ++i) {
+ var end = ends[i];
+ area += linearRing(flatCoordinates, offset, end, stride);
+ offset = end;
+ }
+
+ return area;
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {Array<Array<number>>} endss Endss.
+ * @param {number} stride Stride.
+ * @return {number} Area.
+ */
+
+
+function linearRingss(flatCoordinates, offset, endss, stride) {
+ var area = 0;
+
+ for (var i = 0, ii = endss.length; i < ii; ++i) {
+ var ends = endss[i];
+ area += linearRings(flatCoordinates, offset, ends, stride);
+ offset = ends[ends.length - 1];
+ }
+
+ return area;
+}
+},{}],"../../../node_modules/ol/geom/LinearRing.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _GeometryLayout = _interopRequireDefault(require("./GeometryLayout.js"));
+
+var _GeometryType = _interopRequireDefault(require("./GeometryType.js"));
+
+var _SimpleGeometry = _interopRequireDefault(require("./SimpleGeometry.js"));
+
+var _closest = require("./flat/closest.js");
+
+var _extent = require("../extent.js");
+
+var _deflate = require("./flat/deflate.js");
+
+var _simplify = require("./flat/simplify.js");
+
+var _inflate = require("./flat/inflate.js");
+
+var _area = require("./flat/area.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/geom/LinearRing
+ */
+
+
+/**
+ * @classdesc
+ * Linear ring geometry. Only used as part of polygon; cannot be rendered
+ * on its own.
+ *
+ * @api
+ */
+var LinearRing =
+/** @class */
+function (_super) {
+ __extends(LinearRing, _super);
+ /**
+ * @param {Array<import("../coordinate.js").Coordinate>|Array<number>} coordinates Coordinates.
+ * For internal use, flat coordinates in combination with `opt_layout` are also accepted.
+ * @param {import("./GeometryLayout.js").default=} opt_layout Layout.
+ */
+
+
+ function LinearRing(coordinates, opt_layout) {
+ var _this = _super.call(this) || this;
+ /**
+ * @private
+ * @type {number}
+ */
+
+
+ _this.maxDelta_ = -1;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.maxDeltaRevision_ = -1;
+
+ if (opt_layout !== undefined && !Array.isArray(coordinates[0])) {
+ _this.setFlatCoordinates(opt_layout,
+ /** @type {Array<number>} */
+ coordinates);
+ } else {
+ _this.setCoordinates(
+ /** @type {Array<import("../coordinate.js").Coordinate>} */
+ coordinates, opt_layout);
+ }
+
+ return _this;
+ }
+ /**
+ * Make a complete copy of the geometry.
+ * @return {!LinearRing} Clone.
+ * @api
+ */
+
+
+ LinearRing.prototype.clone = function () {
+ return new LinearRing(this.flatCoordinates.slice(), this.layout);
+ };
+ /**
+ * @param {number} x X.
+ * @param {number} y Y.
+ * @param {import("../coordinate.js").Coordinate} closestPoint Closest point.
+ * @param {number} minSquaredDistance Minimum squared distance.
+ * @return {number} Minimum squared distance.
+ */
+
+
+ LinearRing.prototype.closestPointXY = function (x, y, closestPoint, minSquaredDistance) {
+ if (minSquaredDistance < (0, _extent.closestSquaredDistanceXY)(this.getExtent(), x, y)) {
+ return minSquaredDistance;
+ }
+
+ if (this.maxDeltaRevision_ != this.getRevision()) {
+ this.maxDelta_ = Math.sqrt((0, _closest.maxSquaredDelta)(this.flatCoordinates, 0, this.flatCoordinates.length, this.stride, 0));
+ this.maxDeltaRevision_ = this.getRevision();
+ }
+
+ return (0, _closest.assignClosestPoint)(this.flatCoordinates, 0, this.flatCoordinates.length, this.stride, this.maxDelta_, true, x, y, closestPoint, minSquaredDistance);
+ };
+ /**
+ * Return the area of the linear ring on projected plane.
+ * @return {number} Area (on projected plane).
+ * @api
+ */
+
+
+ LinearRing.prototype.getArea = function () {
+ return (0, _area.linearRing)(this.flatCoordinates, 0, this.flatCoordinates.length, this.stride);
+ };
+ /**
+ * Return the coordinates of the linear ring.
+ * @return {Array<import("../coordinate.js").Coordinate>} Coordinates.
+ * @api
+ */
+
+
+ LinearRing.prototype.getCoordinates = function () {
+ return (0, _inflate.inflateCoordinates)(this.flatCoordinates, 0, this.flatCoordinates.length, this.stride);
+ };
+ /**
+ * @param {number} squaredTolerance Squared tolerance.
+ * @return {LinearRing} Simplified LinearRing.
+ * @protected
+ */
+
+
+ LinearRing.prototype.getSimplifiedGeometryInternal = function (squaredTolerance) {
+ var simplifiedFlatCoordinates = [];
+ simplifiedFlatCoordinates.length = (0, _simplify.douglasPeucker)(this.flatCoordinates, 0, this.flatCoordinates.length, this.stride, squaredTolerance, simplifiedFlatCoordinates, 0);
+ return new LinearRing(simplifiedFlatCoordinates, _GeometryLayout.default.XY);
+ };
+ /**
+ * Get the type of this geometry.
+ * @return {import("./GeometryType.js").default} Geometry type.
+ * @api
+ */
+
+
+ LinearRing.prototype.getType = function () {
+ return _GeometryType.default.LINEAR_RING;
+ };
+ /**
+ * Test if the geometry and the passed extent intersect.
+ * @param {import("../extent.js").Extent} extent Extent.
+ * @return {boolean} `true` if the geometry and the extent intersect.
+ * @api
+ */
+
+
+ LinearRing.prototype.intersectsExtent = function (extent) {
+ return false;
+ };
+ /**
+ * Set the coordinates of the linear ring.
+ * @param {!Array<import("../coordinate.js").Coordinate>} coordinates Coordinates.
+ * @param {import("./GeometryLayout.js").default=} opt_layout Layout.
+ * @api
+ */
+
+
+ LinearRing.prototype.setCoordinates = function (coordinates, opt_layout) {
+ this.setLayout(opt_layout, coordinates, 1);
+
+ if (!this.flatCoordinates) {
+ this.flatCoordinates = [];
+ }
+
+ this.flatCoordinates.length = (0, _deflate.deflateCoordinates)(this.flatCoordinates, 0, coordinates, this.stride);
+ this.changed();
+ };
+
+ return LinearRing;
+}(_SimpleGeometry.default);
+
+var _default = LinearRing;
+exports.default = _default;
+},{"./GeometryLayout.js":"../../../node_modules/ol/geom/GeometryLayout.js","./GeometryType.js":"../../../node_modules/ol/geom/GeometryType.js","./SimpleGeometry.js":"../../../node_modules/ol/geom/SimpleGeometry.js","./flat/closest.js":"../../../node_modules/ol/geom/flat/closest.js","../extent.js":"../../../node_modules/ol/extent.js","./flat/deflate.js":"../../../node_modules/ol/geom/flat/deflate.js","./flat/simplify.js":"../../../node_modules/ol/geom/flat/simplify.js","./flat/inflate.js":"../../../node_modules/ol/geom/flat/inflate.js","./flat/area.js":"../../../node_modules/ol/geom/flat/area.js"}],"../../../node_modules/ol/geom/Point.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _GeometryType = _interopRequireDefault(require("./GeometryType.js"));
+
+var _SimpleGeometry = _interopRequireDefault(require("./SimpleGeometry.js"));
+
+var _extent = require("../extent.js");
+
+var _deflate = require("./flat/deflate.js");
+
+var _math = require("../math.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/geom/Point
+ */
+
+
+/**
+ * @classdesc
+ * Point geometry.
+ *
+ * @api
+ */
+var Point =
+/** @class */
+function (_super) {
+ __extends(Point, _super);
+ /**
+ * @param {import("../coordinate.js").Coordinate} coordinates Coordinates.
+ * @param {import("./GeometryLayout.js").default=} opt_layout Layout.
+ */
+
+
+ function Point(coordinates, opt_layout) {
+ var _this = _super.call(this) || this;
+
+ _this.setCoordinates(coordinates, opt_layout);
+
+ return _this;
+ }
+ /**
+ * Make a complete copy of the geometry.
+ * @return {!Point} Clone.
+ * @api
+ */
+
+
+ Point.prototype.clone = function () {
+ var point = new Point(this.flatCoordinates.slice(), this.layout);
+ return point;
+ };
+ /**
+ * @param {number} x X.
+ * @param {number} y Y.
+ * @param {import("../coordinate.js").Coordinate} closestPoint Closest point.
+ * @param {number} minSquaredDistance Minimum squared distance.
+ * @return {number} Minimum squared distance.
+ */
+
+
+ Point.prototype.closestPointXY = function (x, y, closestPoint, minSquaredDistance) {
+ var flatCoordinates = this.flatCoordinates;
+ var squaredDistance = (0, _math.squaredDistance)(x, y, flatCoordinates[0], flatCoordinates[1]);
+
+ if (squaredDistance < minSquaredDistance) {
+ var stride = this.stride;
+
+ for (var i = 0; i < stride; ++i) {
+ closestPoint[i] = flatCoordinates[i];
+ }
+
+ closestPoint.length = stride;
+ return squaredDistance;
+ } else {
+ return minSquaredDistance;
+ }
+ };
+ /**
+ * Return the coordinate of the point.
+ * @return {import("../coordinate.js").Coordinate} Coordinates.
+ * @api
+ */
+
+
+ Point.prototype.getCoordinates = function () {
+ return !this.flatCoordinates ? [] : this.flatCoordinates.slice();
+ };
+ /**
+ * @param {import("../extent.js").Extent} extent Extent.
+ * @protected
+ * @return {import("../extent.js").Extent} extent Extent.
+ */
+
+
+ Point.prototype.computeExtent = function (extent) {
+ return (0, _extent.createOrUpdateFromCoordinate)(this.flatCoordinates, extent);
+ };
+ /**
+ * Get the type of this geometry.
+ * @return {import("./GeometryType.js").default} Geometry type.
+ * @api
+ */
+
+
+ Point.prototype.getType = function () {
+ return _GeometryType.default.POINT;
+ };
+ /**
+ * Test if the geometry and the passed extent intersect.
+ * @param {import("../extent.js").Extent} extent Extent.
+ * @return {boolean} `true` if the geometry and the extent intersect.
+ * @api
+ */
+
+
+ Point.prototype.intersectsExtent = function (extent) {
+ return (0, _extent.containsXY)(extent, this.flatCoordinates[0], this.flatCoordinates[1]);
+ };
+ /**
+ * @param {!Array<*>} coordinates Coordinates.
+ * @param {import("./GeometryLayout.js").default=} opt_layout Layout.
+ * @api
+ */
+
+
+ Point.prototype.setCoordinates = function (coordinates, opt_layout) {
+ this.setLayout(opt_layout, coordinates, 0);
+
+ if (!this.flatCoordinates) {
+ this.flatCoordinates = [];
+ }
+
+ this.flatCoordinates.length = (0, _deflate.deflateCoordinate)(this.flatCoordinates, 0, coordinates, this.stride);
+ this.changed();
+ };
+
+ return Point;
+}(_SimpleGeometry.default);
+
+var _default = Point;
+exports.default = _default;
+},{"./GeometryType.js":"../../../node_modules/ol/geom/GeometryType.js","./SimpleGeometry.js":"../../../node_modules/ol/geom/SimpleGeometry.js","../extent.js":"../../../node_modules/ol/extent.js","./flat/deflate.js":"../../../node_modules/ol/geom/flat/deflate.js","../math.js":"../../../node_modules/ol/math.js"}],"../../../node_modules/ol/geom/flat/contains.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.linearRingContainsExtent = linearRingContainsExtent;
+exports.linearRingContainsXY = linearRingContainsXY;
+exports.linearRingsContainsXY = linearRingsContainsXY;
+exports.linearRingssContainsXY = linearRingssContainsXY;
+
+var _extent = require("../../extent.js");
+
+/**
+ * @module ol/geom/flat/contains
+ */
+
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @param {import("../../extent.js").Extent} extent Extent.
+ * @return {boolean} Contains extent.
+ */
+function linearRingContainsExtent(flatCoordinates, offset, end, stride, extent) {
+ var outside = (0, _extent.forEachCorner)(extent,
+ /**
+ * @param {import("../../coordinate.js").Coordinate} coordinate Coordinate.
+ * @return {boolean} Contains (x, y).
+ */
+ function (coordinate) {
+ return !linearRingContainsXY(flatCoordinates, offset, end, stride, coordinate[0], coordinate[1]);
+ });
+ return !outside;
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @param {number} x X.
+ * @param {number} y Y.
+ * @return {boolean} Contains (x, y).
+ */
+
+
+function linearRingContainsXY(flatCoordinates, offset, end, stride, x, y) {
+ // http://geomalgorithms.com/a03-_inclusion.html
+ // Copyright 2000 softSurfer, 2012 Dan Sunday
+ // This code may be freely used and modified for any purpose
+ // providing that this copyright notice is included with it.
+ // SoftSurfer makes no warranty for this code, and cannot be held
+ // liable for any real or imagined damage resulting from its use.
+ // Users of this code must verify correctness for their application.
+ var wn = 0;
+ var x1 = flatCoordinates[end - stride];
+ var y1 = flatCoordinates[end - stride + 1];
+
+ for (; offset < end; offset += stride) {
+ var x2 = flatCoordinates[offset];
+ var y2 = flatCoordinates[offset + 1];
+
+ if (y1 <= y) {
+ if (y2 > y && (x2 - x1) * (y - y1) - (x - x1) * (y2 - y1) > 0) {
+ wn++;
+ }
+ } else if (y2 <= y && (x2 - x1) * (y - y1) - (x - x1) * (y2 - y1) < 0) {
+ wn--;
+ }
+
+ x1 = x2;
+ y1 = y2;
+ }
+
+ return wn !== 0;
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {Array<number>} ends Ends.
+ * @param {number} stride Stride.
+ * @param {number} x X.
+ * @param {number} y Y.
+ * @return {boolean} Contains (x, y).
+ */
+
+
+function linearRingsContainsXY(flatCoordinates, offset, ends, stride, x, y) {
+ if (ends.length === 0) {
+ return false;
+ }
+
+ if (!linearRingContainsXY(flatCoordinates, offset, ends[0], stride, x, y)) {
+ return false;
+ }
+
+ for (var i = 1, ii = ends.length; i < ii; ++i) {
+ if (linearRingContainsXY(flatCoordinates, ends[i - 1], ends[i], stride, x, y)) {
+ return false;
+ }
+ }
+
+ return true;
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {Array<Array<number>>} endss Endss.
+ * @param {number} stride Stride.
+ * @param {number} x X.
+ * @param {number} y Y.
+ * @return {boolean} Contains (x, y).
+ */
+
+
+function linearRingssContainsXY(flatCoordinates, offset, endss, stride, x, y) {
+ if (endss.length === 0) {
+ return false;
+ }
+
+ for (var i = 0, ii = endss.length; i < ii; ++i) {
+ var ends = endss[i];
+
+ if (linearRingsContainsXY(flatCoordinates, offset, ends, stride, x, y)) {
+ return true;
+ }
+
+ offset = ends[ends.length - 1];
+ }
+
+ return false;
+}
+},{"../../extent.js":"../../../node_modules/ol/extent.js"}],"../../../node_modules/ol/geom/flat/interiorpoint.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.getInteriorPointOfArray = getInteriorPointOfArray;
+exports.getInteriorPointsOfMultiArray = getInteriorPointsOfMultiArray;
+
+var _contains = require("./contains.js");
+
+var _array = require("../../array.js");
+
+/**
+ * @module ol/geom/flat/interiorpoint
+ */
+
+/**
+ * Calculates a point that is likely to lie in the interior of the linear rings.
+ * Inspired by JTS's com.vividsolutions.jts.geom.Geometry#getInteriorPoint.
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {Array<number>} ends Ends.
+ * @param {number} stride Stride.
+ * @param {Array<number>} flatCenters Flat centers.
+ * @param {number} flatCentersOffset Flat center offset.
+ * @param {Array<number>=} opt_dest Destination.
+ * @return {Array<number>} Destination point as XYM coordinate, where M is the
+ * length of the horizontal intersection that the point belongs to.
+ */
+function getInteriorPointOfArray(flatCoordinates, offset, ends, stride, flatCenters, flatCentersOffset, opt_dest) {
+ var i, ii, x, x1, x2, y1, y2;
+ var y = flatCenters[flatCentersOffset + 1];
+ /** @type {Array<number>} */
+
+ var intersections = []; // Calculate intersections with the horizontal line
+
+ for (var r = 0, rr = ends.length; r < rr; ++r) {
+ var end = ends[r];
+ x1 = flatCoordinates[end - stride];
+ y1 = flatCoordinates[end - stride + 1];
+
+ for (i = offset; i < end; i += stride) {
+ x2 = flatCoordinates[i];
+ y2 = flatCoordinates[i + 1];
+
+ if (y <= y1 && y2 <= y || y1 <= y && y <= y2) {
+ x = (y - y1) / (y2 - y1) * (x2 - x1) + x1;
+ intersections.push(x);
+ }
+
+ x1 = x2;
+ y1 = y2;
+ }
+ } // Find the longest segment of the horizontal line that has its center point
+ // inside the linear ring.
+
+
+ var pointX = NaN;
+ var maxSegmentLength = -Infinity;
+ intersections.sort(_array.numberSafeCompareFunction);
+ x1 = intersections[0];
+
+ for (i = 1, ii = intersections.length; i < ii; ++i) {
+ x2 = intersections[i];
+ var segmentLength = Math.abs(x2 - x1);
+
+ if (segmentLength > maxSegmentLength) {
+ x = (x1 + x2) / 2;
+
+ if ((0, _contains.linearRingsContainsXY)(flatCoordinates, offset, ends, stride, x, y)) {
+ pointX = x;
+ maxSegmentLength = segmentLength;
+ }
+ }
+
+ x1 = x2;
+ }
+
+ if (isNaN(pointX)) {
+ // There is no horizontal line that has its center point inside the linear
+ // ring. Use the center of the the linear ring's extent.
+ pointX = flatCenters[flatCentersOffset];
+ }
+
+ if (opt_dest) {
+ opt_dest.push(pointX, y, maxSegmentLength);
+ return opt_dest;
+ } else {
+ return [pointX, y, maxSegmentLength];
+ }
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {Array<Array<number>>} endss Endss.
+ * @param {number} stride Stride.
+ * @param {Array<number>} flatCenters Flat centers.
+ * @return {Array<number>} Interior points as XYM coordinates, where M is the
+ * length of the horizontal intersection that the point belongs to.
+ */
+
+
+function getInteriorPointsOfMultiArray(flatCoordinates, offset, endss, stride, flatCenters) {
+ var interiorPoints = [];
+
+ for (var i = 0, ii = endss.length; i < ii; ++i) {
+ var ends = endss[i];
+ interiorPoints = getInteriorPointOfArray(flatCoordinates, offset, ends, stride, flatCenters, 2 * i, interiorPoints);
+ offset = ends[ends.length - 1];
+ }
+
+ return interiorPoints;
+}
+},{"./contains.js":"../../../node_modules/ol/geom/flat/contains.js","../../array.js":"../../../node_modules/ol/array.js"}],"../../../node_modules/ol/geom/flat/segments.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.forEach = forEach;
+
+/**
+ * @module ol/geom/flat/segments
+ */
+
+/**
+ * This function calls `callback` for each segment of the flat coordinates
+ * array. If the callback returns a truthy value the function returns that
+ * value immediately. Otherwise the function returns `false`.
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @param {function(import("../../coordinate.js").Coordinate, import("../../coordinate.js").Coordinate): T} callback Function
+ * called for each segment.
+ * @return {T|boolean} Value.
+ * @template T
+ */
+function forEach(flatCoordinates, offset, end, stride, callback) {
+ var point1 = [flatCoordinates[offset], flatCoordinates[offset + 1]];
+ var point2 = [];
+ var ret;
+
+ for (; offset + stride < end; offset += stride) {
+ point2[0] = flatCoordinates[offset + stride];
+ point2[1] = flatCoordinates[offset + stride + 1];
+ ret = callback(point1, point2);
+
+ if (ret) {
+ return ret;
+ }
+
+ point1[0] = point2[0];
+ point1[1] = point2[1];
+ }
+
+ return false;
+}
+},{}],"../../../node_modules/ol/geom/flat/intersectsextent.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.intersectsLineString = intersectsLineString;
+exports.intersectsLineStringArray = intersectsLineStringArray;
+exports.intersectsLinearRing = intersectsLinearRing;
+exports.intersectsLinearRingArray = intersectsLinearRingArray;
+exports.intersectsLinearRingMultiArray = intersectsLinearRingMultiArray;
+
+var _extent = require("../../extent.js");
+
+var _segments = require("./segments.js");
+
+var _contains = require("./contains.js");
+
+/**
+ * @module ol/geom/flat/intersectsextent
+ */
+
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @param {import("../../extent.js").Extent} extent Extent.
+ * @return {boolean} True if the geometry and the extent intersect.
+ */
+function intersectsLineString(flatCoordinates, offset, end, stride, extent) {
+ var coordinatesExtent = (0, _extent.extendFlatCoordinates)((0, _extent.createEmpty)(), flatCoordinates, offset, end, stride);
+
+ if (!(0, _extent.intersects)(extent, coordinatesExtent)) {
+ return false;
+ }
+
+ if ((0, _extent.containsExtent)(extent, coordinatesExtent)) {
+ return true;
+ }
+
+ if (coordinatesExtent[0] >= extent[0] && coordinatesExtent[2] <= extent[2]) {
+ return true;
+ }
+
+ if (coordinatesExtent[1] >= extent[1] && coordinatesExtent[3] <= extent[3]) {
+ return true;
+ }
+
+ return (0, _segments.forEach)(flatCoordinates, offset, end, stride,
+ /**
+ * @param {import("../../coordinate.js").Coordinate} point1 Start point.
+ * @param {import("../../coordinate.js").Coordinate} point2 End point.
+ * @return {boolean} `true` if the segment and the extent intersect,
+ * `false` otherwise.
+ */
+ function (point1, point2) {
+ return (0, _extent.intersectsSegment)(extent, point1, point2);
+ });
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {Array<number>} ends Ends.
+ * @param {number} stride Stride.
+ * @param {import("../../extent.js").Extent} extent Extent.
+ * @return {boolean} True if the geometry and the extent intersect.
+ */
+
+
+function intersectsLineStringArray(flatCoordinates, offset, ends, stride, extent) {
+ for (var i = 0, ii = ends.length; i < ii; ++i) {
+ if (intersectsLineString(flatCoordinates, offset, ends[i], stride, extent)) {
+ return true;
+ }
+
+ offset = ends[i];
+ }
+
+ return false;
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @param {import("../../extent.js").Extent} extent Extent.
+ * @return {boolean} True if the geometry and the extent intersect.
+ */
+
+
+function intersectsLinearRing(flatCoordinates, offset, end, stride, extent) {
+ if (intersectsLineString(flatCoordinates, offset, end, stride, extent)) {
+ return true;
+ }
+
+ if ((0, _contains.linearRingContainsXY)(flatCoordinates, offset, end, stride, extent[0], extent[1])) {
+ return true;
+ }
+
+ if ((0, _contains.linearRingContainsXY)(flatCoordinates, offset, end, stride, extent[0], extent[3])) {
+ return true;
+ }
+
+ if ((0, _contains.linearRingContainsXY)(flatCoordinates, offset, end, stride, extent[2], extent[1])) {
+ return true;
+ }
+
+ if ((0, _contains.linearRingContainsXY)(flatCoordinates, offset, end, stride, extent[2], extent[3])) {
+ return true;
+ }
+
+ return false;
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {Array<number>} ends Ends.
+ * @param {number} stride Stride.
+ * @param {import("../../extent.js").Extent} extent Extent.
+ * @return {boolean} True if the geometry and the extent intersect.
+ */
+
+
+function intersectsLinearRingArray(flatCoordinates, offset, ends, stride, extent) {
+ if (!intersectsLinearRing(flatCoordinates, offset, ends[0], stride, extent)) {
+ return false;
+ }
+
+ if (ends.length === 1) {
+ return true;
+ }
+
+ for (var i = 1, ii = ends.length; i < ii; ++i) {
+ if ((0, _contains.linearRingContainsExtent)(flatCoordinates, ends[i - 1], ends[i], stride, extent)) {
+ if (!intersectsLineString(flatCoordinates, ends[i - 1], ends[i], stride, extent)) {
+ return false;
+ }
+ }
+ }
+
+ return true;
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {Array<Array<number>>} endss Endss.
+ * @param {number} stride Stride.
+ * @param {import("../../extent.js").Extent} extent Extent.
+ * @return {boolean} True if the geometry and the extent intersect.
+ */
+
+
+function intersectsLinearRingMultiArray(flatCoordinates, offset, endss, stride, extent) {
+ for (var i = 0, ii = endss.length; i < ii; ++i) {
+ var ends = endss[i];
+
+ if (intersectsLinearRingArray(flatCoordinates, offset, ends, stride, extent)) {
+ return true;
+ }
+
+ offset = ends[ends.length - 1];
+ }
+
+ return false;
+}
+},{"../../extent.js":"../../../node_modules/ol/extent.js","./segments.js":"../../../node_modules/ol/geom/flat/segments.js","./contains.js":"../../../node_modules/ol/geom/flat/contains.js"}],"../../../node_modules/ol/geom/flat/reverse.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.coordinates = coordinates;
+
+/**
+ * @module ol/geom/flat/reverse
+ */
+
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ */
+function coordinates(flatCoordinates, offset, end, stride) {
+ while (offset < end - stride) {
+ for (var i = 0; i < stride; ++i) {
+ var tmp = flatCoordinates[offset + i];
+ flatCoordinates[offset + i] = flatCoordinates[end - stride + i];
+ flatCoordinates[end - stride + i] = tmp;
+ }
+
+ offset += stride;
+ end -= stride;
+ }
+}
+},{}],"../../../node_modules/ol/geom/flat/orient.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.linearRingIsClockwise = linearRingIsClockwise;
+exports.linearRingsAreOriented = linearRingsAreOriented;
+exports.linearRingssAreOriented = linearRingssAreOriented;
+exports.orientLinearRings = orientLinearRings;
+exports.orientLinearRingsArray = orientLinearRingsArray;
+
+var _reverse = require("./reverse.js");
+
+/**
+ * @module ol/geom/flat/orient
+ */
+
+/**
+ * Is the linear ring oriented clockwise in a coordinate system with a bottom-left
+ * coordinate origin? For a coordinate system with a top-left coordinate origin,
+ * the ring's orientation is clockwise when this function returns false.
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @return {boolean} Is clockwise.
+ */
+function linearRingIsClockwise(flatCoordinates, offset, end, stride) {
+ // https://stackoverflow.com/a/1180256/2389327
+ // https://en.wikipedia.org/wiki/Curve_orientation#Orientation_of_a_simple_polygon
+ var firstVertexRepeated = true;
+
+ for (var i = 0; i < stride; ++i) {
+ if (flatCoordinates[offset + i] !== flatCoordinates[end - stride + i]) {
+ firstVertexRepeated = false;
+ break;
+ }
+ }
+
+ if (firstVertexRepeated) {
+ end -= stride;
+ }
+
+ var iMinVertex = findCornerVertex(flatCoordinates, offset, end, stride); // Orientation matrix:
+ // [ 1 xa ya ]
+ // O = | 1 xb yb |
+ // [ 1 xc yc ]
+
+ var iPreviousVertex = iMinVertex - stride;
+
+ if (iPreviousVertex < offset) {
+ iPreviousVertex = end - stride;
+ }
+
+ var iNextVertex = iMinVertex + stride;
+
+ if (iNextVertex >= end) {
+ iNextVertex = offset;
+ }
+
+ var aX = flatCoordinates[iPreviousVertex];
+ var aY = flatCoordinates[iPreviousVertex + 1];
+ var bX = flatCoordinates[iMinVertex];
+ var bY = flatCoordinates[iMinVertex + 1];
+ var cX = flatCoordinates[iNextVertex];
+ var cY = flatCoordinates[iNextVertex + 1];
+ var determinant = bX * cY + aX * bY + aY * cX - (aY * bX + bY * cX + aX * cY);
+ return determinant < 0;
+} // Find vertex along one edge of bounding box.
+// In this case, we find smallest y; in case of tie also smallest x.
+
+
+function findCornerVertex(flatCoordinates, offset, end, stride) {
+ var iMinVertex = -1;
+ var minY = Infinity;
+ var minXAtMinY = Infinity;
+
+ for (var i = offset; i < end; i += stride) {
+ var x = flatCoordinates[i];
+ var y = flatCoordinates[i + 1];
+
+ if (y > minY) {
+ continue;
+ }
+
+ if (y == minY) {
+ if (x >= minXAtMinY) {
+ continue;
+ }
+ } // Minimum so far.
+
+
+ iMinVertex = i;
+ minY = y;
+ minXAtMinY = x;
+ }
+
+ return iMinVertex;
+}
+/**
+ * Determines if linear rings are oriented. By default, left-hand orientation
+ * is tested (first ring must be clockwise, remaining rings counter-clockwise).
+ * To test for right-hand orientation, use the `opt_right` argument.
+ *
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {Array<number>} ends Array of end indexes.
+ * @param {number} stride Stride.
+ * @param {boolean=} opt_right Test for right-hand orientation
+ * (counter-clockwise exterior ring and clockwise interior rings).
+ * @return {boolean} Rings are correctly oriented.
+ */
+
+
+function linearRingsAreOriented(flatCoordinates, offset, ends, stride, opt_right) {
+ var right = opt_right !== undefined ? opt_right : false;
+
+ for (var i = 0, ii = ends.length; i < ii; ++i) {
+ var end = ends[i];
+ var isClockwise = linearRingIsClockwise(flatCoordinates, offset, end, stride);
+
+ if (i === 0) {
+ if (right && isClockwise || !right && !isClockwise) {
+ return false;
+ }
+ } else {
+ if (right && !isClockwise || !right && isClockwise) {
+ return false;
+ }
+ }
+
+ offset = end;
+ }
+
+ return true;
+}
+/**
+ * Determines if linear rings are oriented. By default, left-hand orientation
+ * is tested (first ring must be clockwise, remaining rings counter-clockwise).
+ * To test for right-hand orientation, use the `opt_right` argument.
+ *
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {Array<Array<number>>} endss Array of array of end indexes.
+ * @param {number} stride Stride.
+ * @param {boolean=} opt_right Test for right-hand orientation
+ * (counter-clockwise exterior ring and clockwise interior rings).
+ * @return {boolean} Rings are correctly oriented.
+ */
+
+
+function linearRingssAreOriented(flatCoordinates, offset, endss, stride, opt_right) {
+ for (var i = 0, ii = endss.length; i < ii; ++i) {
+ var ends = endss[i];
+
+ if (!linearRingsAreOriented(flatCoordinates, offset, ends, stride, opt_right)) {
+ return false;
+ }
+
+ if (ends.length) {
+ offset = ends[ends.length - 1];
+ }
+ }
+
+ return true;
+}
+/**
+ * Orient coordinates in a flat array of linear rings. By default, rings
+ * are oriented following the left-hand rule (clockwise for exterior and
+ * counter-clockwise for interior rings). To orient according to the
+ * right-hand rule, use the `opt_right` argument.
+ *
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {Array<number>} ends Ends.
+ * @param {number} stride Stride.
+ * @param {boolean=} opt_right Follow the right-hand rule for orientation.
+ * @return {number} End.
+ */
+
+
+function orientLinearRings(flatCoordinates, offset, ends, stride, opt_right) {
+ var right = opt_right !== undefined ? opt_right : false;
+
+ for (var i = 0, ii = ends.length; i < ii; ++i) {
+ var end = ends[i];
+ var isClockwise = linearRingIsClockwise(flatCoordinates, offset, end, stride);
+ var reverse = i === 0 ? right && isClockwise || !right && !isClockwise : right && !isClockwise || !right && isClockwise;
+
+ if (reverse) {
+ (0, _reverse.coordinates)(flatCoordinates, offset, end, stride);
+ }
+
+ offset = end;
+ }
+
+ return offset;
+}
+/**
+ * Orient coordinates in a flat array of linear rings. By default, rings
+ * are oriented following the left-hand rule (clockwise for exterior and
+ * counter-clockwise for interior rings). To orient according to the
+ * right-hand rule, use the `opt_right` argument.
+ *
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {Array<Array<number>>} endss Array of array of end indexes.
+ * @param {number} stride Stride.
+ * @param {boolean=} opt_right Follow the right-hand rule for orientation.
+ * @return {number} End.
+ */
+
+
+function orientLinearRingsArray(flatCoordinates, offset, endss, stride, opt_right) {
+ for (var i = 0, ii = endss.length; i < ii; ++i) {
+ offset = orientLinearRings(flatCoordinates, offset, endss[i], stride, opt_right);
+ }
+
+ return offset;
+}
+},{"./reverse.js":"../../../node_modules/ol/geom/flat/reverse.js"}],"../../../node_modules/ol/geom/Polygon.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.circular = circular;
+exports.fromExtent = fromExtent;
+exports.fromCircle = fromCircle;
+exports.makeRegular = makeRegular;
+exports.default = void 0;
+
+var _GeometryLayout = _interopRequireDefault(require("./GeometryLayout.js"));
+
+var _GeometryType = _interopRequireDefault(require("./GeometryType.js"));
+
+var _LinearRing = _interopRequireDefault(require("./LinearRing.js"));
+
+var _Point = _interopRequireDefault(require("./Point.js"));
+
+var _SimpleGeometry = _interopRequireDefault(require("./SimpleGeometry.js"));
+
+var _closest = require("./flat/closest.js");
+
+var _extent = require("../extent.js");
+
+var _deflate = require("./flat/deflate.js");
+
+var _array = require("../array.js");
+
+var _interiorpoint = require("./flat/interiorpoint.js");
+
+var _inflate = require("./flat/inflate.js");
+
+var _intersectsextent = require("./flat/intersectsextent.js");
+
+var _orient = require("./flat/orient.js");
+
+var _area = require("./flat/area.js");
+
+var _contains = require("./flat/contains.js");
+
+var _math = require("../math.js");
+
+var _simplify = require("./flat/simplify.js");
+
+var _sphere = require("../sphere.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/geom/Polygon
+ */
+
+
+/**
+ * @classdesc
+ * Polygon geometry.
+ *
+ * @api
+ */
+var Polygon =
+/** @class */
+function (_super) {
+ __extends(Polygon, _super);
+ /**
+ * @param {!Array<Array<import("../coordinate.js").Coordinate>>|!Array<number>} coordinates
+ * Array of linear rings that define the polygon. The first linear ring of the
+ * array defines the outer-boundary or surface of the polygon. Each subsequent
+ * linear ring defines a hole in the surface of the polygon. A linear ring is
+ * an array of vertices' coordinates where the first coordinate and the last are
+ * equivalent. (For internal use, flat coordinates in combination with
+ * `opt_layout` and `opt_ends` are also accepted.)
+ * @param {import("./GeometryLayout.js").default=} opt_layout Layout.
+ * @param {Array<number>=} opt_ends Ends (for internal use with flat coordinates).
+ */
+
+
+ function Polygon(coordinates, opt_layout, opt_ends) {
+ var _this = _super.call(this) || this;
+ /**
+ * @type {Array<number>}
+ * @private
+ */
+
+
+ _this.ends_ = [];
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.flatInteriorPointRevision_ = -1;
+ /**
+ * @private
+ * @type {import("../coordinate.js").Coordinate}
+ */
+
+ _this.flatInteriorPoint_ = null;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.maxDelta_ = -1;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.maxDeltaRevision_ = -1;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.orientedRevision_ = -1;
+ /**
+ * @private
+ * @type {Array<number>}
+ */
+
+ _this.orientedFlatCoordinates_ = null;
+
+ if (opt_layout !== undefined && opt_ends) {
+ _this.setFlatCoordinates(opt_layout,
+ /** @type {Array<number>} */
+ coordinates);
+
+ _this.ends_ = opt_ends;
+ } else {
+ _this.setCoordinates(
+ /** @type {Array<Array<import("../coordinate.js").Coordinate>>} */
+ coordinates, opt_layout);
+ }
+
+ return _this;
+ }
+ /**
+ * Append the passed linear ring to this polygon.
+ * @param {LinearRing} linearRing Linear ring.
+ * @api
+ */
+
+
+ Polygon.prototype.appendLinearRing = function (linearRing) {
+ if (!this.flatCoordinates) {
+ this.flatCoordinates = linearRing.getFlatCoordinates().slice();
+ } else {
+ (0, _array.extend)(this.flatCoordinates, linearRing.getFlatCoordinates());
+ }
+
+ this.ends_.push(this.flatCoordinates.length);
+ this.changed();
+ };
+ /**
+ * Make a complete copy of the geometry.
+ * @return {!Polygon} Clone.
+ * @api
+ */
+
+
+ Polygon.prototype.clone = function () {
+ return new Polygon(this.flatCoordinates.slice(), this.layout, this.ends_.slice());
+ };
+ /**
+ * @param {number} x X.
+ * @param {number} y Y.
+ * @param {import("../coordinate.js").Coordinate} closestPoint Closest point.
+ * @param {number} minSquaredDistance Minimum squared distance.
+ * @return {number} Minimum squared distance.
+ */
+
+
+ Polygon.prototype.closestPointXY = function (x, y, closestPoint, minSquaredDistance) {
+ if (minSquaredDistance < (0, _extent.closestSquaredDistanceXY)(this.getExtent(), x, y)) {
+ return minSquaredDistance;
+ }
+
+ if (this.maxDeltaRevision_ != this.getRevision()) {
+ this.maxDelta_ = Math.sqrt((0, _closest.arrayMaxSquaredDelta)(this.flatCoordinates, 0, this.ends_, this.stride, 0));
+ this.maxDeltaRevision_ = this.getRevision();
+ }
+
+ return (0, _closest.assignClosestArrayPoint)(this.flatCoordinates, 0, this.ends_, this.stride, this.maxDelta_, true, x, y, closestPoint, minSquaredDistance);
+ };
+ /**
+ * @param {number} x X.
+ * @param {number} y Y.
+ * @return {boolean} Contains (x, y).
+ */
+
+
+ Polygon.prototype.containsXY = function (x, y) {
+ return (0, _contains.linearRingsContainsXY)(this.getOrientedFlatCoordinates(), 0, this.ends_, this.stride, x, y);
+ };
+ /**
+ * Return the area of the polygon on projected plane.
+ * @return {number} Area (on projected plane).
+ * @api
+ */
+
+
+ Polygon.prototype.getArea = function () {
+ return (0, _area.linearRings)(this.getOrientedFlatCoordinates(), 0, this.ends_, this.stride);
+ };
+ /**
+ * Get the coordinate array for this geometry. This array has the structure
+ * of a GeoJSON coordinate array for polygons.
+ *
+ * @param {boolean=} opt_right Orient coordinates according to the right-hand
+ * rule (counter-clockwise for exterior and clockwise for interior rings).
+ * If `false`, coordinates will be oriented according to the left-hand rule
+ * (clockwise for exterior and counter-clockwise for interior rings).
+ * By default, coordinate orientation will depend on how the geometry was
+ * constructed.
+ * @return {Array<Array<import("../coordinate.js").Coordinate>>} Coordinates.
+ * @api
+ */
+
+
+ Polygon.prototype.getCoordinates = function (opt_right) {
+ var flatCoordinates;
+
+ if (opt_right !== undefined) {
+ flatCoordinates = this.getOrientedFlatCoordinates().slice();
+ (0, _orient.orientLinearRings)(flatCoordinates, 0, this.ends_, this.stride, opt_right);
+ } else {
+ flatCoordinates = this.flatCoordinates;
+ }
+
+ return (0, _inflate.inflateCoordinatesArray)(flatCoordinates, 0, this.ends_, this.stride);
+ };
+ /**
+ * @return {Array<number>} Ends.
+ */
+
+
+ Polygon.prototype.getEnds = function () {
+ return this.ends_;
+ };
+ /**
+ * @return {Array<number>} Interior point.
+ */
+
+
+ Polygon.prototype.getFlatInteriorPoint = function () {
+ if (this.flatInteriorPointRevision_ != this.getRevision()) {
+ var flatCenter = (0, _extent.getCenter)(this.getExtent());
+ this.flatInteriorPoint_ = (0, _interiorpoint.getInteriorPointOfArray)(this.getOrientedFlatCoordinates(), 0, this.ends_, this.stride, flatCenter, 0);
+ this.flatInteriorPointRevision_ = this.getRevision();
+ }
+
+ return this.flatInteriorPoint_;
+ };
+ /**
+ * Return an interior point of the polygon.
+ * @return {Point} Interior point as XYM coordinate, where M is the
+ * length of the horizontal intersection that the point belongs to.
+ * @api
+ */
+
+
+ Polygon.prototype.getInteriorPoint = function () {
+ return new _Point.default(this.getFlatInteriorPoint(), _GeometryLayout.default.XYM);
+ };
+ /**
+ * Return the number of rings of the polygon, this includes the exterior
+ * ring and any interior rings.
+ *
+ * @return {number} Number of rings.
+ * @api
+ */
+
+
+ Polygon.prototype.getLinearRingCount = function () {
+ return this.ends_.length;
+ };
+ /**
+ * Return the Nth linear ring of the polygon geometry. Return `null` if the
+ * given index is out of range.
+ * The exterior linear ring is available at index `0` and the interior rings
+ * at index `1` and beyond.
+ *
+ * @param {number} index Index.
+ * @return {LinearRing} Linear ring.
+ * @api
+ */
+
+
+ Polygon.prototype.getLinearRing = function (index) {
+ if (index < 0 || this.ends_.length <= index) {
+ return null;
+ }
+
+ return new _LinearRing.default(this.flatCoordinates.slice(index === 0 ? 0 : this.ends_[index - 1], this.ends_[index]), this.layout);
+ };
+ /**
+ * Return the linear rings of the polygon.
+ * @return {Array<LinearRing>} Linear rings.
+ * @api
+ */
+
+
+ Polygon.prototype.getLinearRings = function () {
+ var layout = this.layout;
+ var flatCoordinates = this.flatCoordinates;
+ var ends = this.ends_;
+ var linearRings = [];
+ var offset = 0;
+
+ for (var i = 0, ii = ends.length; i < ii; ++i) {
+ var end = ends[i];
+ var linearRing = new _LinearRing.default(flatCoordinates.slice(offset, end), layout);
+ linearRings.push(linearRing);
+ offset = end;
+ }
+
+ return linearRings;
+ };
+ /**
+ * @return {Array<number>} Oriented flat coordinates.
+ */
+
+
+ Polygon.prototype.getOrientedFlatCoordinates = function () {
+ if (this.orientedRevision_ != this.getRevision()) {
+ var flatCoordinates = this.flatCoordinates;
+
+ if ((0, _orient.linearRingsAreOriented)(flatCoordinates, 0, this.ends_, this.stride)) {
+ this.orientedFlatCoordinates_ = flatCoordinates;
+ } else {
+ this.orientedFlatCoordinates_ = flatCoordinates.slice();
+ this.orientedFlatCoordinates_.length = (0, _orient.orientLinearRings)(this.orientedFlatCoordinates_, 0, this.ends_, this.stride);
+ }
+
+ this.orientedRevision_ = this.getRevision();
+ }
+
+ return this.orientedFlatCoordinates_;
+ };
+ /**
+ * @param {number} squaredTolerance Squared tolerance.
+ * @return {Polygon} Simplified Polygon.
+ * @protected
+ */
+
+
+ Polygon.prototype.getSimplifiedGeometryInternal = function (squaredTolerance) {
+ var simplifiedFlatCoordinates = [];
+ var simplifiedEnds = [];
+ simplifiedFlatCoordinates.length = (0, _simplify.quantizeArray)(this.flatCoordinates, 0, this.ends_, this.stride, Math.sqrt(squaredTolerance), simplifiedFlatCoordinates, 0, simplifiedEnds);
+ return new Polygon(simplifiedFlatCoordinates, _GeometryLayout.default.XY, simplifiedEnds);
+ };
+ /**
+ * Get the type of this geometry.
+ * @return {import("./GeometryType.js").default} Geometry type.
+ * @api
+ */
+
+
+ Polygon.prototype.getType = function () {
+ return _GeometryType.default.POLYGON;
+ };
+ /**
+ * Test if the geometry and the passed extent intersect.
+ * @param {import("../extent.js").Extent} extent Extent.
+ * @return {boolean} `true` if the geometry and the extent intersect.
+ * @api
+ */
+
+
+ Polygon.prototype.intersectsExtent = function (extent) {
+ return (0, _intersectsextent.intersectsLinearRingArray)(this.getOrientedFlatCoordinates(), 0, this.ends_, this.stride, extent);
+ };
+ /**
+ * Set the coordinates of the polygon.
+ * @param {!Array<Array<import("../coordinate.js").Coordinate>>} coordinates Coordinates.
+ * @param {import("./GeometryLayout.js").default=} opt_layout Layout.
+ * @api
+ */
+
+
+ Polygon.prototype.setCoordinates = function (coordinates, opt_layout) {
+ this.setLayout(opt_layout, coordinates, 2);
+
+ if (!this.flatCoordinates) {
+ this.flatCoordinates = [];
+ }
+
+ var ends = (0, _deflate.deflateCoordinatesArray)(this.flatCoordinates, 0, coordinates, this.stride, this.ends_);
+ this.flatCoordinates.length = ends.length === 0 ? 0 : ends[ends.length - 1];
+ this.changed();
+ };
+
+ return Polygon;
+}(_SimpleGeometry.default);
+
+var _default = Polygon;
+/**
+ * Create an approximation of a circle on the surface of a sphere.
+ * @param {import("../coordinate.js").Coordinate} center Center (`[lon, lat]` in degrees).
+ * @param {number} radius The great-circle distance from the center to
+ * the polygon vertices.
+ * @param {number=} opt_n Optional number of vertices for the resulting
+ * polygon. Default is `32`.
+ * @param {number=} opt_sphereRadius Optional radius for the sphere (defaults to
+ * the Earth's mean radius using the WGS84 ellipsoid).
+ * @return {Polygon} The "circular" polygon.
+ * @api
+ */
+
+exports.default = _default;
+
+function circular(center, radius, opt_n, opt_sphereRadius) {
+ var n = opt_n ? opt_n : 32;
+ /** @type {Array<number>} */
+
+ var flatCoordinates = [];
+
+ for (var i = 0; i < n; ++i) {
+ (0, _array.extend)(flatCoordinates, (0, _sphere.offset)(center, radius, 2 * Math.PI * i / n, opt_sphereRadius));
+ }
+
+ flatCoordinates.push(flatCoordinates[0], flatCoordinates[1]);
+ return new Polygon(flatCoordinates, _GeometryLayout.default.XY, [flatCoordinates.length]);
+}
+/**
+ * Create a polygon from an extent. The layout used is `XY`.
+ * @param {import("../extent.js").Extent} extent The extent.
+ * @return {Polygon} The polygon.
+ * @api
+ */
+
+
+function fromExtent(extent) {
+ var minX = extent[0];
+ var minY = extent[1];
+ var maxX = extent[2];
+ var maxY = extent[3];
+ var flatCoordinates = [minX, minY, minX, maxY, maxX, maxY, maxX, minY, minX, minY];
+ return new Polygon(flatCoordinates, _GeometryLayout.default.XY, [flatCoordinates.length]);
+}
+/**
+ * Create a regular polygon from a circle.
+ * @param {import("./Circle.js").default} circle Circle geometry.
+ * @param {number=} opt_sides Number of sides of the polygon. Default is 32.
+ * @param {number=} opt_angle Start angle for the first vertex of the polygon in
+ * radians. Default is 0.
+ * @return {Polygon} Polygon geometry.
+ * @api
+ */
+
+
+function fromCircle(circle, opt_sides, opt_angle) {
+ var sides = opt_sides ? opt_sides : 32;
+ var stride = circle.getStride();
+ var layout = circle.getLayout();
+ var center = circle.getCenter();
+ var arrayLength = stride * (sides + 1);
+ var flatCoordinates = new Array(arrayLength);
+
+ for (var i = 0; i < arrayLength; i += stride) {
+ flatCoordinates[i] = 0;
+ flatCoordinates[i + 1] = 0;
+
+ for (var j = 2; j < stride; j++) {
+ flatCoordinates[i + j] = center[j];
+ }
+ }
+
+ var ends = [flatCoordinates.length];
+ var polygon = new Polygon(flatCoordinates, layout, ends);
+ makeRegular(polygon, center, circle.getRadius(), opt_angle);
+ return polygon;
+}
+/**
+ * Modify the coordinates of a polygon to make it a regular polygon.
+ * @param {Polygon} polygon Polygon geometry.
+ * @param {import("../coordinate.js").Coordinate} center Center of the regular polygon.
+ * @param {number} radius Radius of the regular polygon.
+ * @param {number=} opt_angle Start angle for the first vertex of the polygon in
+ * radians. Default is 0.
+ */
+
+
+function makeRegular(polygon, center, radius, opt_angle) {
+ var flatCoordinates = polygon.getFlatCoordinates();
+ var stride = polygon.getStride();
+ var sides = flatCoordinates.length / stride - 1;
+ var startAngle = opt_angle ? opt_angle : 0;
+
+ for (var i = 0; i <= sides; ++i) {
+ var offset = i * stride;
+ var angle = startAngle + (0, _math.modulo)(i, sides) * 2 * Math.PI / sides;
+ flatCoordinates[offset] = center[0] + radius * Math.cos(angle);
+ flatCoordinates[offset + 1] = center[1] + radius * Math.sin(angle);
+ }
+
+ polygon.changed();
+}
+},{"./GeometryLayout.js":"../../../node_modules/ol/geom/GeometryLayout.js","./GeometryType.js":"../../../node_modules/ol/geom/GeometryType.js","./LinearRing.js":"../../../node_modules/ol/geom/LinearRing.js","./Point.js":"../../../node_modules/ol/geom/Point.js","./SimpleGeometry.js":"../../../node_modules/ol/geom/SimpleGeometry.js","./flat/closest.js":"../../../node_modules/ol/geom/flat/closest.js","../extent.js":"../../../node_modules/ol/extent.js","./flat/deflate.js":"../../../node_modules/ol/geom/flat/deflate.js","../array.js":"../../../node_modules/ol/array.js","./flat/interiorpoint.js":"../../../node_modules/ol/geom/flat/interiorpoint.js","./flat/inflate.js":"../../../node_modules/ol/geom/flat/inflate.js","./flat/intersectsextent.js":"../../../node_modules/ol/geom/flat/intersectsextent.js","./flat/orient.js":"../../../node_modules/ol/geom/flat/orient.js","./flat/area.js":"../../../node_modules/ol/geom/flat/area.js","./flat/contains.js":"../../../node_modules/ol/geom/flat/contains.js","../math.js":"../../../node_modules/ol/math.js","./flat/simplify.js":"../../../node_modules/ol/geom/flat/simplify.js","../sphere.js":"../../../node_modules/ol/sphere.js"}],"../../../node_modules/ol/Geolocation.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Event = _interopRequireDefault(require("./events/Event.js"));
+
+var _Object = _interopRequireWildcard(require("./Object.js"));
+
+var _EventType = _interopRequireDefault(require("./events/EventType.js"));
+
+var _Polygon = require("./geom/Polygon.js");
+
+var _proj = require("./proj.js");
+
+var _math = require("./math.js");
+
+function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/Geolocation
+ */
+
+
+/**
+ * @enum {string}
+ */
+var Property = {
+ ACCURACY: 'accuracy',
+ ACCURACY_GEOMETRY: 'accuracyGeometry',
+ ALTITUDE: 'altitude',
+ ALTITUDE_ACCURACY: 'altitudeAccuracy',
+ HEADING: 'heading',
+ POSITION: 'position',
+ PROJECTION: 'projection',
+ SPEED: 'speed',
+ TRACKING: 'tracking',
+ TRACKING_OPTIONS: 'trackingOptions'
+};
+/**
+ * @classdesc
+ * Events emitted on Geolocation error.
+ */
+
+var GeolocationError =
+/** @class */
+function (_super) {
+ __extends(GeolocationError, _super);
+ /**
+ * @param {PositionError} error error object.
+ */
+
+
+ function GeolocationError(error) {
+ var _this = _super.call(this, _EventType.default.ERROR) || this;
+ /**
+ * @type {number}
+ */
+
+
+ _this.code = error.code;
+ /**
+ * @type {string}
+ */
+
+ _this.message = error.message;
+ return _this;
+ }
+
+ return GeolocationError;
+}(_Event.default);
+/**
+ * @typedef {Object} Options
+ * @property {boolean} [tracking=false] Start Tracking right after
+ * instantiation.
+ * @property {PositionOptions} [trackingOptions] Tracking options.
+ * See http://www.w3.org/TR/geolocation-API/#position_options_interface.
+ * @property {import("./proj.js").ProjectionLike} [projection] The projection the position
+ * is reported in.
+ */
+
+/**
+ * @classdesc
+ * Helper class for providing HTML5 Geolocation capabilities.
+ * The [Geolocation API](http://www.w3.org/TR/geolocation-API/)
+ * is used to locate a user's position.
+ *
+ * To get notified of position changes, register a listener for the generic
+ * `change` event on your instance of {@link module:ol/Geolocation~Geolocation}.
+ *
+ * Example:
+ *
+ * var geolocation = new Geolocation({
+ * // take the projection to use from the map's view
+ * projection: view.getProjection()
+ * });
+ * // listen to changes in position
+ * geolocation.on('change', function(evt) {
+ * window.console.log(geolocation.getPosition());
+ * });
+ *
+ * @fires module:ol/events/Event~BaseEvent#event:error
+ * @api
+ */
+
+
+var Geolocation =
+/** @class */
+function (_super) {
+ __extends(Geolocation, _super);
+ /**
+ * @param {Options=} opt_options Options.
+ */
+
+
+ function Geolocation(opt_options) {
+ var _this = _super.call(this) || this;
+
+ var options = opt_options || {};
+ /**
+ * The unprojected (EPSG:4326) device position.
+ * @private
+ * @type {?import("./coordinate.js").Coordinate}
+ */
+
+ _this.position_ = null;
+ /**
+ * @private
+ * @type {import("./proj.js").TransformFunction}
+ */
+
+ _this.transform_ = _proj.identityTransform;
+ /**
+ * @private
+ * @type {number|undefined}
+ */
+
+ _this.watchId_ = undefined;
+
+ _this.addEventListener((0, _Object.getChangeEventType)(Property.PROJECTION), _this.handleProjectionChanged_);
+
+ _this.addEventListener((0, _Object.getChangeEventType)(Property.TRACKING), _this.handleTrackingChanged_);
+
+ if (options.projection !== undefined) {
+ _this.setProjection(options.projection);
+ }
+
+ if (options.trackingOptions !== undefined) {
+ _this.setTrackingOptions(options.trackingOptions);
+ }
+
+ _this.setTracking(options.tracking !== undefined ? options.tracking : false);
+
+ return _this;
+ }
+ /**
+ * Clean up.
+ */
+
+
+ Geolocation.prototype.disposeInternal = function () {
+ this.setTracking(false);
+
+ _super.prototype.disposeInternal.call(this);
+ };
+ /**
+ * @private
+ */
+
+
+ Geolocation.prototype.handleProjectionChanged_ = function () {
+ var projection = this.getProjection();
+
+ if (projection) {
+ this.transform_ = (0, _proj.getTransformFromProjections)((0, _proj.get)('EPSG:4326'), projection);
+
+ if (this.position_) {
+ this.set(Property.POSITION, this.transform_(this.position_));
+ }
+ }
+ };
+ /**
+ * @private
+ */
+
+
+ Geolocation.prototype.handleTrackingChanged_ = function () {
+ if ('geolocation' in navigator) {
+ var tracking = this.getTracking();
+
+ if (tracking && this.watchId_ === undefined) {
+ this.watchId_ = navigator.geolocation.watchPosition(this.positionChange_.bind(this), this.positionError_.bind(this), this.getTrackingOptions());
+ } else if (!tracking && this.watchId_ !== undefined) {
+ navigator.geolocation.clearWatch(this.watchId_);
+ this.watchId_ = undefined;
+ }
+ }
+ };
+ /**
+ * @private
+ * @param {Position} position position event.
+ */
+
+
+ Geolocation.prototype.positionChange_ = function (position) {
+ var coords = position.coords;
+ this.set(Property.ACCURACY, coords.accuracy);
+ this.set(Property.ALTITUDE, coords.altitude === null ? undefined : coords.altitude);
+ this.set(Property.ALTITUDE_ACCURACY, coords.altitudeAccuracy === null ? undefined : coords.altitudeAccuracy);
+ this.set(Property.HEADING, coords.heading === null ? undefined : (0, _math.toRadians)(coords.heading));
+
+ if (!this.position_) {
+ this.position_ = [coords.longitude, coords.latitude];
+ } else {
+ this.position_[0] = coords.longitude;
+ this.position_[1] = coords.latitude;
+ }
+
+ var projectedPosition = this.transform_(this.position_);
+ this.set(Property.POSITION, projectedPosition);
+ this.set(Property.SPEED, coords.speed === null ? undefined : coords.speed);
+ var geometry = (0, _Polygon.circular)(this.position_, coords.accuracy);
+ geometry.applyTransform(this.transform_);
+ this.set(Property.ACCURACY_GEOMETRY, geometry);
+ this.changed();
+ };
+ /**
+ * @private
+ * @param {PositionError} error error object.
+ */
+
+
+ Geolocation.prototype.positionError_ = function (error) {
+ this.dispatchEvent(new GeolocationError(error));
+ };
+ /**
+ * Get the accuracy of the position in meters.
+ * @return {number|undefined} The accuracy of the position measurement in
+ * meters.
+ * @observable
+ * @api
+ */
+
+
+ Geolocation.prototype.getAccuracy = function () {
+ return (
+ /** @type {number|undefined} */
+ this.get(Property.ACCURACY)
+ );
+ };
+ /**
+ * Get a geometry of the position accuracy.
+ * @return {?import("./geom/Polygon.js").default} A geometry of the position accuracy.
+ * @observable
+ * @api
+ */
+
+
+ Geolocation.prototype.getAccuracyGeometry = function () {
+ return (
+ /** @type {?import("./geom/Polygon.js").default} */
+ this.get(Property.ACCURACY_GEOMETRY) || null
+ );
+ };
+ /**
+ * Get the altitude associated with the position.
+ * @return {number|undefined} The altitude of the position in meters above mean
+ * sea level.
+ * @observable
+ * @api
+ */
+
+
+ Geolocation.prototype.getAltitude = function () {
+ return (
+ /** @type {number|undefined} */
+ this.get(Property.ALTITUDE)
+ );
+ };
+ /**
+ * Get the altitude accuracy of the position.
+ * @return {number|undefined} The accuracy of the altitude measurement in
+ * meters.
+ * @observable
+ * @api
+ */
+
+
+ Geolocation.prototype.getAltitudeAccuracy = function () {
+ return (
+ /** @type {number|undefined} */
+ this.get(Property.ALTITUDE_ACCURACY)
+ );
+ };
+ /**
+ * Get the heading as radians clockwise from North.
+ * Note: depending on the browser, the heading is only defined if the `enableHighAccuracy`
+ * is set to `true` in the tracking options.
+ * @return {number|undefined} The heading of the device in radians from north.
+ * @observable
+ * @api
+ */
+
+
+ Geolocation.prototype.getHeading = function () {
+ return (
+ /** @type {number|undefined} */
+ this.get(Property.HEADING)
+ );
+ };
+ /**
+ * Get the position of the device.
+ * @return {import("./coordinate.js").Coordinate|undefined} The current position of the device reported
+ * in the current projection.
+ * @observable
+ * @api
+ */
+
+
+ Geolocation.prototype.getPosition = function () {
+ return (
+ /** @type {import("./coordinate.js").Coordinate|undefined} */
+ this.get(Property.POSITION)
+ );
+ };
+ /**
+ * Get the projection associated with the position.
+ * @return {import("./proj/Projection.js").default|undefined} The projection the position is
+ * reported in.
+ * @observable
+ * @api
+ */
+
+
+ Geolocation.prototype.getProjection = function () {
+ return (
+ /** @type {import("./proj/Projection.js").default|undefined} */
+ this.get(Property.PROJECTION)
+ );
+ };
+ /**
+ * Get the speed in meters per second.
+ * @return {number|undefined} The instantaneous speed of the device in meters
+ * per second.
+ * @observable
+ * @api
+ */
+
+
+ Geolocation.prototype.getSpeed = function () {
+ return (
+ /** @type {number|undefined} */
+ this.get(Property.SPEED)
+ );
+ };
+ /**
+ * Determine if the device location is being tracked.
+ * @return {boolean} The device location is being tracked.
+ * @observable
+ * @api
+ */
+
+
+ Geolocation.prototype.getTracking = function () {
+ return (
+ /** @type {boolean} */
+ this.get(Property.TRACKING)
+ );
+ };
+ /**
+ * Get the tracking options.
+ * See http://www.w3.org/TR/geolocation-API/#position-options.
+ * @return {PositionOptions|undefined} PositionOptions as defined by
+ * the [HTML5 Geolocation spec
+ * ](http://www.w3.org/TR/geolocation-API/#position_options_interface).
+ * @observable
+ * @api
+ */
+
+
+ Geolocation.prototype.getTrackingOptions = function () {
+ return (
+ /** @type {PositionOptions|undefined} */
+ this.get(Property.TRACKING_OPTIONS)
+ );
+ };
+ /**
+ * Set the projection to use for transforming the coordinates.
+ * @param {import("./proj.js").ProjectionLike} projection The projection the position is
+ * reported in.
+ * @observable
+ * @api
+ */
+
+
+ Geolocation.prototype.setProjection = function (projection) {
+ this.set(Property.PROJECTION, (0, _proj.get)(projection));
+ };
+ /**
+ * Enable or disable tracking.
+ * @param {boolean} tracking Enable tracking.
+ * @observable
+ * @api
+ */
+
+
+ Geolocation.prototype.setTracking = function (tracking) {
+ this.set(Property.TRACKING, tracking);
+ };
+ /**
+ * Set the tracking options.
+ * See http://www.w3.org/TR/geolocation-API/#position-options.
+ * @param {PositionOptions} options PositionOptions as defined by the
+ * [HTML5 Geolocation spec
+ * ](http://www.w3.org/TR/geolocation-API/#position_options_interface).
+ * @observable
+ * @api
+ */
+
+
+ Geolocation.prototype.setTrackingOptions = function (options) {
+ this.set(Property.TRACKING_OPTIONS, options);
+ };
+
+ return Geolocation;
+}(_Object.default);
+
+var _default = Geolocation;
+exports.default = _default;
+},{"./events/Event.js":"../../../node_modules/ol/events/Event.js","./Object.js":"../../../node_modules/ol/Object.js","./events/EventType.js":"../../../node_modules/ol/events/EventType.js","./geom/Polygon.js":"../../../node_modules/ol/geom/Polygon.js","./proj.js":"../../../node_modules/ol/proj.js","./math.js":"../../../node_modules/ol/math.js"}],"../../../node_modules/ol/render/EventType.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+/**
+ * @module ol/render/EventType
+ */
+
+/**
+ * @enum {string}
+ */
+var _default = {
+ /**
+ * Triggered before a layer is rendered.
+ * @event module:ol/render/Event~RenderEvent#prerender
+ * @api
+ */
+ PRERENDER: 'prerender',
+
+ /**
+ * Triggered after a layer is rendered.
+ * @event module:ol/render/Event~RenderEvent#postrender
+ * @api
+ */
+ POSTRENDER: 'postrender',
+
+ /**
+ * Triggered before layers are rendered.
+ * The event object will not have a `context` set.
+ * @event module:ol/render/Event~RenderEvent#precompose
+ * @api
+ */
+ PRECOMPOSE: 'precompose',
+
+ /**
+ * Triggered after all layers are rendered.
+ * The event object will not have a `context` set.
+ * @event module:ol/render/Event~RenderEvent#postcompose
+ * @api
+ */
+ POSTCOMPOSE: 'postcompose',
+
+ /**
+ * Triggered when rendering is complete, i.e. all sources and tiles have
+ * finished loading for the current viewport, and all tiles are faded in.
+ * The event object will not have a `context` set.
+ * @event module:ol/render/Event~RenderEvent#rendercomplete
+ * @api
+ */
+ RENDERCOMPLETE: 'rendercomplete'
+};
+exports.default = _default;
+},{}],"../../../node_modules/ol/style/Fill.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+/**
+ * @module ol/style/Fill
+ */
+
+/**
+ * @typedef {Object} Options
+ * @property {import("../color.js").Color|import("../colorlike.js").ColorLike} [color=null] A color, gradient or pattern.
+ * See {@link module:ol/color~Color} and {@link module:ol/colorlike~ColorLike} for possible formats.
+ * Default null; if null, the Canvas/renderer default black will be used.
+ */
+
+/**
+ * @classdesc
+ * Set fill style for vector features.
+ * @api
+ */
+var Fill =
+/** @class */
+function () {
+ /**
+ * @param {Options=} opt_options Options.
+ */
+ function Fill(opt_options) {
+ var options = opt_options || {};
+ /**
+ * @private
+ * @type {import("../color.js").Color|import("../colorlike.js").ColorLike}
+ */
+
+ this.color_ = options.color !== undefined ? options.color : null;
+ }
+ /**
+ * Clones the style. The color is not cloned if it is an {@link module:ol/colorlike~ColorLike}.
+ * @return {Fill} The cloned style.
+ * @api
+ */
+
+
+ Fill.prototype.clone = function () {
+ var color = this.getColor();
+ return new Fill({
+ color: Array.isArray(color) ? color.slice() : color || undefined
+ });
+ };
+ /**
+ * Get the fill color.
+ * @return {import("../color.js").Color|import("../colorlike.js").ColorLike} Color.
+ * @api
+ */
+
+
+ Fill.prototype.getColor = function () {
+ return this.color_;
+ };
+ /**
+ * Set the color.
+ *
+ * @param {import("../color.js").Color|import("../colorlike.js").ColorLike} color Color.
+ * @api
+ */
+
+
+ Fill.prototype.setColor = function (color) {
+ this.color_ = color;
+ };
+
+ return Fill;
+}();
+
+var _default = Fill;
+exports.default = _default;
+},{}],"../../../node_modules/ol/geom/flat/interpolate.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.interpolatePoint = interpolatePoint;
+exports.lineStringCoordinateAtM = lineStringCoordinateAtM;
+exports.lineStringsCoordinateAtM = lineStringsCoordinateAtM;
+
+var _array = require("../../array.js");
+
+var _math = require("../../math.js");
+
+/**
+ * @module ol/geom/flat/interpolate
+ */
+
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @param {number} fraction Fraction.
+ * @param {Array<number>=} opt_dest Destination.
+ * @param {number=} opt_dimension Destination dimension (default is `2`)
+ * @return {Array<number>} Destination.
+ */
+function interpolatePoint(flatCoordinates, offset, end, stride, fraction, opt_dest, opt_dimension) {
+ var o, t;
+ var n = (end - offset) / stride;
+
+ if (n === 1) {
+ o = offset;
+ } else if (n === 2) {
+ o = offset;
+ t = fraction;
+ } else if (n !== 0) {
+ var x1 = flatCoordinates[offset];
+ var y1 = flatCoordinates[offset + 1];
+ var length_1 = 0;
+ var cumulativeLengths = [0];
+
+ for (var i = offset + stride; i < end; i += stride) {
+ var x2 = flatCoordinates[i];
+ var y2 = flatCoordinates[i + 1];
+ length_1 += Math.sqrt((x2 - x1) * (x2 - x1) + (y2 - y1) * (y2 - y1));
+ cumulativeLengths.push(length_1);
+ x1 = x2;
+ y1 = y2;
+ }
+
+ var target = fraction * length_1;
+ var index = (0, _array.binarySearch)(cumulativeLengths, target);
+
+ if (index < 0) {
+ t = (target - cumulativeLengths[-index - 2]) / (cumulativeLengths[-index - 1] - cumulativeLengths[-index - 2]);
+ o = offset + (-index - 2) * stride;
+ } else {
+ o = offset + index * stride;
+ }
+ }
+
+ var dimension = opt_dimension > 1 ? opt_dimension : 2;
+ var dest = opt_dest ? opt_dest : new Array(dimension);
+
+ for (var i = 0; i < dimension; ++i) {
+ dest[i] = o === undefined ? NaN : t === undefined ? flatCoordinates[o + i] : (0, _math.lerp)(flatCoordinates[o + i], flatCoordinates[o + stride + i], t);
+ }
+
+ return dest;
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @param {number} m M.
+ * @param {boolean} extrapolate Extrapolate.
+ * @return {import("../../coordinate.js").Coordinate} Coordinate.
+ */
+
+
+function lineStringCoordinateAtM(flatCoordinates, offset, end, stride, m, extrapolate) {
+ if (end == offset) {
+ return null;
+ }
+
+ var coordinate;
+
+ if (m < flatCoordinates[offset + stride - 1]) {
+ if (extrapolate) {
+ coordinate = flatCoordinates.slice(offset, offset + stride);
+ coordinate[stride - 1] = m;
+ return coordinate;
+ } else {
+ return null;
+ }
+ } else if (flatCoordinates[end - 1] < m) {
+ if (extrapolate) {
+ coordinate = flatCoordinates.slice(end - stride, end);
+ coordinate[stride - 1] = m;
+ return coordinate;
+ } else {
+ return null;
+ }
+ } // FIXME use O(1) search
+
+
+ if (m == flatCoordinates[offset + stride - 1]) {
+ return flatCoordinates.slice(offset, offset + stride);
+ }
+
+ var lo = offset / stride;
+ var hi = end / stride;
+
+ while (lo < hi) {
+ var mid = lo + hi >> 1;
+
+ if (m < flatCoordinates[(mid + 1) * stride - 1]) {
+ hi = mid;
+ } else {
+ lo = mid + 1;
+ }
+ }
+
+ var m0 = flatCoordinates[lo * stride - 1];
+
+ if (m == m0) {
+ return flatCoordinates.slice((lo - 1) * stride, (lo - 1) * stride + stride);
+ }
+
+ var m1 = flatCoordinates[(lo + 1) * stride - 1];
+ var t = (m - m0) / (m1 - m0);
+ coordinate = [];
+
+ for (var i = 0; i < stride - 1; ++i) {
+ coordinate.push((0, _math.lerp)(flatCoordinates[(lo - 1) * stride + i], flatCoordinates[lo * stride + i], t));
+ }
+
+ coordinate.push(m);
+ return coordinate;
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {Array<number>} ends Ends.
+ * @param {number} stride Stride.
+ * @param {number} m M.
+ * @param {boolean} extrapolate Extrapolate.
+ * @param {boolean} interpolate Interpolate.
+ * @return {import("../../coordinate.js").Coordinate} Coordinate.
+ */
+
+
+function lineStringsCoordinateAtM(flatCoordinates, offset, ends, stride, m, extrapolate, interpolate) {
+ if (interpolate) {
+ return lineStringCoordinateAtM(flatCoordinates, offset, ends[ends.length - 1], stride, m, extrapolate);
+ }
+
+ var coordinate;
+
+ if (m < flatCoordinates[stride - 1]) {
+ if (extrapolate) {
+ coordinate = flatCoordinates.slice(0, stride);
+ coordinate[stride - 1] = m;
+ return coordinate;
+ } else {
+ return null;
+ }
+ }
+
+ if (flatCoordinates[flatCoordinates.length - 1] < m) {
+ if (extrapolate) {
+ coordinate = flatCoordinates.slice(flatCoordinates.length - stride);
+ coordinate[stride - 1] = m;
+ return coordinate;
+ } else {
+ return null;
+ }
+ }
+
+ for (var i = 0, ii = ends.length; i < ii; ++i) {
+ var end = ends[i];
+
+ if (offset == end) {
+ continue;
+ }
+
+ if (m < flatCoordinates[offset + stride - 1]) {
+ return null;
+ } else if (m <= flatCoordinates[end - 1]) {
+ return lineStringCoordinateAtM(flatCoordinates, offset, end, stride, m, false);
+ }
+
+ offset = end;
+ }
+
+ return null;
+}
+},{"../../array.js":"../../../node_modules/ol/array.js","../../math.js":"../../../node_modules/ol/math.js"}],"../../../node_modules/ol/geom/flat/length.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.lineStringLength = lineStringLength;
+exports.linearRingLength = linearRingLength;
+
+/**
+ * @module ol/geom/flat/length
+ */
+
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @return {number} Length.
+ */
+function lineStringLength(flatCoordinates, offset, end, stride) {
+ var x1 = flatCoordinates[offset];
+ var y1 = flatCoordinates[offset + 1];
+ var length = 0;
+
+ for (var i = offset + stride; i < end; i += stride) {
+ var x2 = flatCoordinates[i];
+ var y2 = flatCoordinates[i + 1];
+ length += Math.sqrt((x2 - x1) * (x2 - x1) + (y2 - y1) * (y2 - y1));
+ x1 = x2;
+ y1 = y2;
+ }
+
+ return length;
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @return {number} Perimeter.
+ */
+
+
+function linearRingLength(flatCoordinates, offset, end, stride) {
+ var perimeter = lineStringLength(flatCoordinates, offset, end, stride);
+ var dx = flatCoordinates[end - stride] - flatCoordinates[offset];
+ var dy = flatCoordinates[end - stride + 1] - flatCoordinates[offset + 1];
+ perimeter += Math.sqrt(dx * dx + dy * dy);
+ return perimeter;
+}
+},{}],"../../../node_modules/ol/geom/LineString.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _GeometryLayout = _interopRequireDefault(require("./GeometryLayout.js"));
+
+var _GeometryType = _interopRequireDefault(require("./GeometryType.js"));
+
+var _SimpleGeometry = _interopRequireDefault(require("./SimpleGeometry.js"));
+
+var _closest = require("./flat/closest.js");
+
+var _extent = require("../extent.js");
+
+var _deflate = require("./flat/deflate.js");
+
+var _simplify = require("./flat/simplify.js");
+
+var _array = require("../array.js");
+
+var _segments = require("./flat/segments.js");
+
+var _inflate = require("./flat/inflate.js");
+
+var _interpolate = require("./flat/interpolate.js");
+
+var _intersectsextent = require("./flat/intersectsextent.js");
+
+var _length = require("./flat/length.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/geom/LineString
+ */
+
+
+/**
+ * @classdesc
+ * Linestring geometry.
+ *
+ * @api
+ */
+var LineString =
+/** @class */
+function (_super) {
+ __extends(LineString, _super);
+ /**
+ * @param {Array<import("../coordinate.js").Coordinate>|Array<number>} coordinates Coordinates.
+ * For internal use, flat coordinates in combination with `opt_layout` are also accepted.
+ * @param {import("./GeometryLayout.js").default=} opt_layout Layout.
+ */
+
+
+ function LineString(coordinates, opt_layout) {
+ var _this = _super.call(this) || this;
+ /**
+ * @private
+ * @type {import("../coordinate.js").Coordinate}
+ */
+
+
+ _this.flatMidpoint_ = null;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.flatMidpointRevision_ = -1;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.maxDelta_ = -1;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.maxDeltaRevision_ = -1;
+
+ if (opt_layout !== undefined && !Array.isArray(coordinates[0])) {
+ _this.setFlatCoordinates(opt_layout,
+ /** @type {Array<number>} */
+ coordinates);
+ } else {
+ _this.setCoordinates(
+ /** @type {Array<import("../coordinate.js").Coordinate>} */
+ coordinates, opt_layout);
+ }
+
+ return _this;
+ }
+ /**
+ * Append the passed coordinate to the coordinates of the linestring.
+ * @param {import("../coordinate.js").Coordinate} coordinate Coordinate.
+ * @api
+ */
+
+
+ LineString.prototype.appendCoordinate = function (coordinate) {
+ if (!this.flatCoordinates) {
+ this.flatCoordinates = coordinate.slice();
+ } else {
+ (0, _array.extend)(this.flatCoordinates, coordinate);
+ }
+
+ this.changed();
+ };
+ /**
+ * Make a complete copy of the geometry.
+ * @return {!LineString} Clone.
+ * @api
+ */
+
+
+ LineString.prototype.clone = function () {
+ return new LineString(this.flatCoordinates.slice(), this.layout);
+ };
+ /**
+ * @param {number} x X.
+ * @param {number} y Y.
+ * @param {import("../coordinate.js").Coordinate} closestPoint Closest point.
+ * @param {number} minSquaredDistance Minimum squared distance.
+ * @return {number} Minimum squared distance.
+ */
+
+
+ LineString.prototype.closestPointXY = function (x, y, closestPoint, minSquaredDistance) {
+ if (minSquaredDistance < (0, _extent.closestSquaredDistanceXY)(this.getExtent(), x, y)) {
+ return minSquaredDistance;
+ }
+
+ if (this.maxDeltaRevision_ != this.getRevision()) {
+ this.maxDelta_ = Math.sqrt((0, _closest.maxSquaredDelta)(this.flatCoordinates, 0, this.flatCoordinates.length, this.stride, 0));
+ this.maxDeltaRevision_ = this.getRevision();
+ }
+
+ return (0, _closest.assignClosestPoint)(this.flatCoordinates, 0, this.flatCoordinates.length, this.stride, this.maxDelta_, false, x, y, closestPoint, minSquaredDistance);
+ };
+ /**
+ * Iterate over each segment, calling the provided callback.
+ * If the callback returns a truthy value the function returns that
+ * value immediately. Otherwise the function returns `false`.
+ *
+ * @param {function(this: S, import("../coordinate.js").Coordinate, import("../coordinate.js").Coordinate): T} callback Function
+ * called for each segment. The function will receive two arguments, the start and end coordinates of the segment.
+ * @return {T|boolean} Value.
+ * @template T,S
+ * @api
+ */
+
+
+ LineString.prototype.forEachSegment = function (callback) {
+ return (0, _segments.forEach)(this.flatCoordinates, 0, this.flatCoordinates.length, this.stride, callback);
+ };
+ /**
+ * Returns the coordinate at `m` using linear interpolation, or `null` if no
+ * such coordinate exists.
+ *
+ * `opt_extrapolate` controls extrapolation beyond the range of Ms in the
+ * MultiLineString. If `opt_extrapolate` is `true` then Ms less than the first
+ * M will return the first coordinate and Ms greater than the last M will
+ * return the last coordinate.
+ *
+ * @param {number} m M.
+ * @param {boolean=} opt_extrapolate Extrapolate. Default is `false`.
+ * @return {import("../coordinate.js").Coordinate} Coordinate.
+ * @api
+ */
+
+
+ LineString.prototype.getCoordinateAtM = function (m, opt_extrapolate) {
+ if (this.layout != _GeometryLayout.default.XYM && this.layout != _GeometryLayout.default.XYZM) {
+ return null;
+ }
+
+ var extrapolate = opt_extrapolate !== undefined ? opt_extrapolate : false;
+ return (0, _interpolate.lineStringCoordinateAtM)(this.flatCoordinates, 0, this.flatCoordinates.length, this.stride, m, extrapolate);
+ };
+ /**
+ * Return the coordinates of the linestring.
+ * @return {Array<import("../coordinate.js").Coordinate>} Coordinates.
+ * @api
+ */
+
+
+ LineString.prototype.getCoordinates = function () {
+ return (0, _inflate.inflateCoordinates)(this.flatCoordinates, 0, this.flatCoordinates.length, this.stride);
+ };
+ /**
+ * Return the coordinate at the provided fraction along the linestring.
+ * The `fraction` is a number between 0 and 1, where 0 is the start of the
+ * linestring and 1 is the end.
+ * @param {number} fraction Fraction.
+ * @param {import("../coordinate.js").Coordinate=} opt_dest Optional coordinate whose values will
+ * be modified. If not provided, a new coordinate will be returned.
+ * @return {import("../coordinate.js").Coordinate} Coordinate of the interpolated point.
+ * @api
+ */
+
+
+ LineString.prototype.getCoordinateAt = function (fraction, opt_dest) {
+ return (0, _interpolate.interpolatePoint)(this.flatCoordinates, 0, this.flatCoordinates.length, this.stride, fraction, opt_dest, this.stride);
+ };
+ /**
+ * Return the length of the linestring on projected plane.
+ * @return {number} Length (on projected plane).
+ * @api
+ */
+
+
+ LineString.prototype.getLength = function () {
+ return (0, _length.lineStringLength)(this.flatCoordinates, 0, this.flatCoordinates.length, this.stride);
+ };
+ /**
+ * @return {Array<number>} Flat midpoint.
+ */
+
+
+ LineString.prototype.getFlatMidpoint = function () {
+ if (this.flatMidpointRevision_ != this.getRevision()) {
+ this.flatMidpoint_ = this.getCoordinateAt(0.5, this.flatMidpoint_);
+ this.flatMidpointRevision_ = this.getRevision();
+ }
+
+ return this.flatMidpoint_;
+ };
+ /**
+ * @param {number} squaredTolerance Squared tolerance.
+ * @return {LineString} Simplified LineString.
+ * @protected
+ */
+
+
+ LineString.prototype.getSimplifiedGeometryInternal = function (squaredTolerance) {
+ var simplifiedFlatCoordinates = [];
+ simplifiedFlatCoordinates.length = (0, _simplify.douglasPeucker)(this.flatCoordinates, 0, this.flatCoordinates.length, this.stride, squaredTolerance, simplifiedFlatCoordinates, 0);
+ return new LineString(simplifiedFlatCoordinates, _GeometryLayout.default.XY);
+ };
+ /**
+ * Get the type of this geometry.
+ * @return {import("./GeometryType.js").default} Geometry type.
+ * @api
+ */
+
+
+ LineString.prototype.getType = function () {
+ return _GeometryType.default.LINE_STRING;
+ };
+ /**
+ * Test if the geometry and the passed extent intersect.
+ * @param {import("../extent.js").Extent} extent Extent.
+ * @return {boolean} `true` if the geometry and the extent intersect.
+ * @api
+ */
+
+
+ LineString.prototype.intersectsExtent = function (extent) {
+ return (0, _intersectsextent.intersectsLineString)(this.flatCoordinates, 0, this.flatCoordinates.length, this.stride, extent);
+ };
+ /**
+ * Set the coordinates of the linestring.
+ * @param {!Array<import("../coordinate.js").Coordinate>} coordinates Coordinates.
+ * @param {import("./GeometryLayout.js").default=} opt_layout Layout.
+ * @api
+ */
+
+
+ LineString.prototype.setCoordinates = function (coordinates, opt_layout) {
+ this.setLayout(opt_layout, coordinates, 1);
+
+ if (!this.flatCoordinates) {
+ this.flatCoordinates = [];
+ }
+
+ this.flatCoordinates.length = (0, _deflate.deflateCoordinates)(this.flatCoordinates, 0, coordinates, this.stride);
+ this.changed();
+ };
+
+ return LineString;
+}(_SimpleGeometry.default);
+
+var _default = LineString;
+exports.default = _default;
+},{"./GeometryLayout.js":"../../../node_modules/ol/geom/GeometryLayout.js","./GeometryType.js":"../../../node_modules/ol/geom/GeometryType.js","./SimpleGeometry.js":"../../../node_modules/ol/geom/SimpleGeometry.js","./flat/closest.js":"../../../node_modules/ol/geom/flat/closest.js","../extent.js":"../../../node_modules/ol/extent.js","./flat/deflate.js":"../../../node_modules/ol/geom/flat/deflate.js","./flat/simplify.js":"../../../node_modules/ol/geom/flat/simplify.js","../array.js":"../../../node_modules/ol/array.js","./flat/segments.js":"../../../node_modules/ol/geom/flat/segments.js","./flat/inflate.js":"../../../node_modules/ol/geom/flat/inflate.js","./flat/interpolate.js":"../../../node_modules/ol/geom/flat/interpolate.js","./flat/intersectsextent.js":"../../../node_modules/ol/geom/flat/intersectsextent.js","./flat/length.js":"../../../node_modules/ol/geom/flat/length.js"}],"../../../node_modules/ol/style/Stroke.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+/**
+ * @module ol/style/Stroke
+ */
+
+/**
+ * @typedef {Object} Options
+ * @property {import("../color.js").Color|import("../colorlike.js").ColorLike} [color] A color, gradient or pattern.
+ * See {@link module:ol/color~Color} and {@link module:ol/colorlike~ColorLike} for possible formats.
+ * Default null; if null, the Canvas/renderer default black will be used.
+ * @property {CanvasLineCap} [lineCap='round'] Line cap style: `butt`, `round`, or `square`.
+ * @property {CanvasLineJoin} [lineJoin='round'] Line join style: `bevel`, `round`, or `miter`.
+ * @property {Array<number>} [lineDash] Line dash pattern. Default is `null` (no dash).
+ * Please note that Internet Explorer 10 and lower do not support the `setLineDash` method on
+ * the `CanvasRenderingContext2D` and therefore this option will have no visual effect in these browsers.
+ * @property {number} [lineDashOffset=0] Line dash offset.
+ * @property {number} [miterLimit=10] Miter limit.
+ * @property {number} [width] Width.
+ */
+
+/**
+ * @classdesc
+ * Set stroke style for vector features.
+ * Note that the defaults given are the Canvas defaults, which will be used if
+ * option is not defined. The `get` functions return whatever was entered in
+ * the options; they will not return the default.
+ * @api
+ */
+var Stroke =
+/** @class */
+function () {
+ /**
+ * @param {Options=} opt_options Options.
+ */
+ function Stroke(opt_options) {
+ var options = opt_options || {};
+ /**
+ * @private
+ * @type {import("../color.js").Color|import("../colorlike.js").ColorLike}
+ */
+
+ this.color_ = options.color !== undefined ? options.color : null;
+ /**
+ * @private
+ * @type {CanvasLineCap|undefined}
+ */
+
+ this.lineCap_ = options.lineCap;
+ /**
+ * @private
+ * @type {Array<number>}
+ */
+
+ this.lineDash_ = options.lineDash !== undefined ? options.lineDash : null;
+ /**
+ * @private
+ * @type {number|undefined}
+ */
+
+ this.lineDashOffset_ = options.lineDashOffset;
+ /**
+ * @private
+ * @type {CanvasLineJoin|undefined}
+ */
+
+ this.lineJoin_ = options.lineJoin;
+ /**
+ * @private
+ * @type {number|undefined}
+ */
+
+ this.miterLimit_ = options.miterLimit;
+ /**
+ * @private
+ * @type {number|undefined}
+ */
+
+ this.width_ = options.width;
+ }
+ /**
+ * Clones the style.
+ * @return {Stroke} The cloned style.
+ * @api
+ */
+
+
+ Stroke.prototype.clone = function () {
+ var color = this.getColor();
+ return new Stroke({
+ color: Array.isArray(color) ? color.slice() : color || undefined,
+ lineCap: this.getLineCap(),
+ lineDash: this.getLineDash() ? this.getLineDash().slice() : undefined,
+ lineDashOffset: this.getLineDashOffset(),
+ lineJoin: this.getLineJoin(),
+ miterLimit: this.getMiterLimit(),
+ width: this.getWidth()
+ });
+ };
+ /**
+ * Get the stroke color.
+ * @return {import("../color.js").Color|import("../colorlike.js").ColorLike} Color.
+ * @api
+ */
+
+
+ Stroke.prototype.getColor = function () {
+ return this.color_;
+ };
+ /**
+ * Get the line cap type for the stroke.
+ * @return {CanvasLineCap|undefined} Line cap.
+ * @api
+ */
+
+
+ Stroke.prototype.getLineCap = function () {
+ return this.lineCap_;
+ };
+ /**
+ * Get the line dash style for the stroke.
+ * @return {Array<number>} Line dash.
+ * @api
+ */
+
+
+ Stroke.prototype.getLineDash = function () {
+ return this.lineDash_;
+ };
+ /**
+ * Get the line dash offset for the stroke.
+ * @return {number|undefined} Line dash offset.
+ * @api
+ */
+
+
+ Stroke.prototype.getLineDashOffset = function () {
+ return this.lineDashOffset_;
+ };
+ /**
+ * Get the line join type for the stroke.
+ * @return {CanvasLineJoin|undefined} Line join.
+ * @api
+ */
+
+
+ Stroke.prototype.getLineJoin = function () {
+ return this.lineJoin_;
+ };
+ /**
+ * Get the miter limit for the stroke.
+ * @return {number|undefined} Miter limit.
+ * @api
+ */
+
+
+ Stroke.prototype.getMiterLimit = function () {
+ return this.miterLimit_;
+ };
+ /**
+ * Get the stroke width.
+ * @return {number|undefined} Width.
+ * @api
+ */
+
+
+ Stroke.prototype.getWidth = function () {
+ return this.width_;
+ };
+ /**
+ * Set the color.
+ *
+ * @param {import("../color.js").Color|import("../colorlike.js").ColorLike} color Color.
+ * @api
+ */
+
+
+ Stroke.prototype.setColor = function (color) {
+ this.color_ = color;
+ };
+ /**
+ * Set the line cap.
+ *
+ * @param {CanvasLineCap|undefined} lineCap Line cap.
+ * @api
+ */
+
+
+ Stroke.prototype.setLineCap = function (lineCap) {
+ this.lineCap_ = lineCap;
+ };
+ /**
+ * Set the line dash.
+ *
+ * Please note that Internet Explorer 10 and lower [do not support][mdn] the
+ * `setLineDash` method on the `CanvasRenderingContext2D` and therefore this
+ * property will have no visual effect in these browsers.
+ *
+ * [mdn]: https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/setLineDash#Browser_compatibility
+ *
+ * @param {Array<number>} lineDash Line dash.
+ * @api
+ */
+
+
+ Stroke.prototype.setLineDash = function (lineDash) {
+ this.lineDash_ = lineDash;
+ };
+ /**
+ * Set the line dash offset.
+ *
+ * @param {number|undefined} lineDashOffset Line dash offset.
+ * @api
+ */
+
+
+ Stroke.prototype.setLineDashOffset = function (lineDashOffset) {
+ this.lineDashOffset_ = lineDashOffset;
+ };
+ /**
+ * Set the line join.
+ *
+ * @param {CanvasLineJoin|undefined} lineJoin Line join.
+ * @api
+ */
+
+
+ Stroke.prototype.setLineJoin = function (lineJoin) {
+ this.lineJoin_ = lineJoin;
+ };
+ /**
+ * Set the miter limit.
+ *
+ * @param {number|undefined} miterLimit Miter limit.
+ * @api
+ */
+
+
+ Stroke.prototype.setMiterLimit = function (miterLimit) {
+ this.miterLimit_ = miterLimit;
+ };
+ /**
+ * Set the width.
+ *
+ * @param {number|undefined} width Width.
+ * @api
+ */
+
+
+ Stroke.prototype.setWidth = function (width) {
+ this.width_ = width;
+ };
+
+ return Stroke;
+}();
+
+var _default = Stroke;
+exports.default = _default;
+},{}],"../../../node_modules/ol/ImageState.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+/**
+ * @module ol/ImageState
+ */
+
+/**
+ * @enum {number}
+ */
+var _default = {
+ IDLE: 0,
+ LOADING: 1,
+ LOADED: 2,
+ ERROR: 3,
+ EMPTY: 4
+};
+exports.default = _default;
+},{}],"../../../node_modules/ol/size.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.buffer = buffer;
+exports.hasArea = hasArea;
+exports.scale = scale;
+exports.toSize = toSize;
+
+/**
+ * @module ol/size
+ */
+
+/**
+ * An array of numbers representing a size: `[width, height]`.
+ * @typedef {Array<number>} Size
+ * @api
+ */
+
+/**
+ * Returns a buffered size.
+ * @param {Size} size Size.
+ * @param {number} num The amount by which to buffer.
+ * @param {Size=} opt_size Optional reusable size array.
+ * @return {Size} The buffered size.
+ */
+function buffer(size, num, opt_size) {
+ if (opt_size === undefined) {
+ opt_size = [0, 0];
+ }
+
+ opt_size[0] = size[0] + 2 * num;
+ opt_size[1] = size[1] + 2 * num;
+ return opt_size;
+}
+/**
+ * Determines if a size has a positive area.
+ * @param {Size} size The size to test.
+ * @return {boolean} The size has a positive area.
+ */
+
+
+function hasArea(size) {
+ return size[0] > 0 && size[1] > 0;
+}
+/**
+ * Returns a size scaled by a ratio. The result will be an array of integers.
+ * @param {Size} size Size.
+ * @param {number} ratio Ratio.
+ * @param {Size=} opt_size Optional reusable size array.
+ * @return {Size} The scaled size.
+ */
+
+
+function scale(size, ratio, opt_size) {
+ if (opt_size === undefined) {
+ opt_size = [0, 0];
+ }
+
+ opt_size[0] = size[0] * ratio + 0.5 | 0;
+ opt_size[1] = size[1] * ratio + 0.5 | 0;
+ return opt_size;
+}
+/**
+ * Returns an `Size` array for the passed in number (meaning: square) or
+ * `Size` array.
+ * (meaning: non-square),
+ * @param {number|Size} size Width and height.
+ * @param {Size=} opt_size Optional reusable size array.
+ * @return {Size} Size.
+ * @api
+ */
+
+
+function toSize(size, opt_size) {
+ if (Array.isArray(size)) {
+ return size;
+ } else {
+ if (opt_size === undefined) {
+ opt_size = [size, size];
+ } else {
+ opt_size[0] = size;
+ opt_size[1] = size;
+ }
+
+ return opt_size;
+ }
+}
+},{}],"../../../node_modules/ol/style/Image.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _util = require("../util.js");
+
+var _size = require("../size.js");
+
+/**
+ * @module ol/style/Image
+ */
+
+/**
+ * @typedef {Object} Options
+ * @property {number} opacity
+ * @property {boolean} rotateWithView
+ * @property {number} rotation
+ * @property {number|import("../size.js").Size} scale
+ * @property {Array<number>} displacement
+ */
+
+/**
+ * @classdesc
+ * A base class used for creating subclasses and not instantiated in
+ * apps. Base class for {@link module:ol/style/Icon~Icon}, {@link module:ol/style/Circle~CircleStyle} and
+ * {@link module:ol/style/RegularShape~RegularShape}.
+ * @abstract
+ * @api
+ */
+var ImageStyle =
+/** @class */
+function () {
+ /**
+ * @param {Options} options Options.
+ */
+ function ImageStyle(options) {
+ /**
+ * @private
+ * @type {number}
+ */
+ this.opacity_ = options.opacity;
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ this.rotateWithView_ = options.rotateWithView;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ this.rotation_ = options.rotation;
+ /**
+ * @private
+ * @type {number|import("../size.js").Size}
+ */
+
+ this.scale_ = options.scale;
+ /**
+ * @private
+ * @type {import("../size.js").Size}
+ */
+
+ this.scaleArray_ = (0, _size.toSize)(options.scale);
+ /**
+ * @private
+ * @type {Array<number>}
+ */
+
+ this.displacement_ = options.displacement;
+ }
+ /**
+ * Clones the style.
+ * @return {ImageStyle} The cloned style.
+ * @api
+ */
+
+
+ ImageStyle.prototype.clone = function () {
+ var scale = this.getScale();
+ return new ImageStyle({
+ opacity: this.getOpacity(),
+ scale: Array.isArray(scale) ? scale.slice() : scale,
+ rotation: this.getRotation(),
+ rotateWithView: this.getRotateWithView(),
+ displacement: this.getDisplacement().slice()
+ });
+ };
+ /**
+ * Get the symbolizer opacity.
+ * @return {number} Opacity.
+ * @api
+ */
+
+
+ ImageStyle.prototype.getOpacity = function () {
+ return this.opacity_;
+ };
+ /**
+ * Determine whether the symbolizer rotates with the map.
+ * @return {boolean} Rotate with map.
+ * @api
+ */
+
+
+ ImageStyle.prototype.getRotateWithView = function () {
+ return this.rotateWithView_;
+ };
+ /**
+ * Get the symoblizer rotation.
+ * @return {number} Rotation.
+ * @api
+ */
+
+
+ ImageStyle.prototype.getRotation = function () {
+ return this.rotation_;
+ };
+ /**
+ * Get the symbolizer scale.
+ * @return {number|import("../size.js").Size} Scale.
+ * @api
+ */
+
+
+ ImageStyle.prototype.getScale = function () {
+ return this.scale_;
+ };
+ /**
+ * Get the symbolizer scale array.
+ * @return {import("../size.js").Size} Scale array.
+ */
+
+
+ ImageStyle.prototype.getScaleArray = function () {
+ return this.scaleArray_;
+ };
+ /**
+ * Get the displacement of the shape
+ * @return {Array<number>} Shape's center displacement
+ * @api
+ */
+
+
+ ImageStyle.prototype.getDisplacement = function () {
+ return this.displacement_;
+ };
+ /**
+ * Get the anchor point in pixels. The anchor determines the center point for the
+ * symbolizer.
+ * @abstract
+ * @return {Array<number>} Anchor.
+ */
+
+
+ ImageStyle.prototype.getAnchor = function () {
+ return (0, _util.abstract)();
+ };
+ /**
+ * Get the image element for the symbolizer.
+ * @abstract
+ * @param {number} pixelRatio Pixel ratio.
+ * @return {HTMLCanvasElement|HTMLVideoElement|HTMLImageElement} Image element.
+ */
+
+
+ ImageStyle.prototype.getImage = function (pixelRatio) {
+ return (0, _util.abstract)();
+ };
+ /**
+ * @abstract
+ * @return {HTMLCanvasElement|HTMLVideoElement|HTMLImageElement} Image element.
+ */
+
+
+ ImageStyle.prototype.getHitDetectionImage = function () {
+ return (0, _util.abstract)();
+ };
+ /*
+ * Get the image pixel ratio.
+ * @param {number} pixelRatio Pixel ratio.
+ * */
+
+
+ ImageStyle.prototype.getPixelRatio = function (pixelRatio) {
+ return 1;
+ };
+ /**
+ * @abstract
+ * @return {import("../ImageState.js").default} Image state.
+ */
+
+
+ ImageStyle.prototype.getImageState = function () {
+ return (0, _util.abstract)();
+ };
+ /**
+ * @abstract
+ * @return {import("../size.js").Size} Image size.
+ */
+
+
+ ImageStyle.prototype.getImageSize = function () {
+ return (0, _util.abstract)();
+ };
+ /**
+ * @abstract
+ * @return {import("../size.js").Size} Size of the hit-detection image.
+ */
+
+
+ ImageStyle.prototype.getHitDetectionImageSize = function () {
+ return (0, _util.abstract)();
+ };
+ /**
+ * Get the origin of the symbolizer.
+ * @abstract
+ * @return {Array<number>} Origin.
+ */
+
+
+ ImageStyle.prototype.getOrigin = function () {
+ return (0, _util.abstract)();
+ };
+ /**
+ * Get the size of the symbolizer (in pixels).
+ * @abstract
+ * @return {import("../size.js").Size} Size.
+ */
+
+
+ ImageStyle.prototype.getSize = function () {
+ return (0, _util.abstract)();
+ };
+ /**
+ * Set the opacity.
+ *
+ * @param {number} opacity Opacity.
+ * @api
+ */
+
+
+ ImageStyle.prototype.setOpacity = function (opacity) {
+ this.opacity_ = opacity;
+ };
+ /**
+ * Set whether to rotate the style with the view.
+ *
+ * @param {boolean} rotateWithView Rotate with map.
+ * @api
+ */
+
+
+ ImageStyle.prototype.setRotateWithView = function (rotateWithView) {
+ this.rotateWithView_ = rotateWithView;
+ };
+ /**
+ * Set the rotation.
+ *
+ * @param {number} rotation Rotation.
+ * @api
+ */
+
+
+ ImageStyle.prototype.setRotation = function (rotation) {
+ this.rotation_ = rotation;
+ };
+ /**
+ * Set the scale.
+ *
+ * @param {number|import("../size.js").Size} scale Scale.
+ * @api
+ */
+
+
+ ImageStyle.prototype.setScale = function (scale) {
+ this.scale_ = scale;
+ this.scaleArray_ = (0, _size.toSize)(scale);
+ };
+ /**
+ * @abstract
+ * @param {function(import("../events/Event.js").default): void} listener Listener function.
+ */
+
+
+ ImageStyle.prototype.listenImageChange = function (listener) {
+ (0, _util.abstract)();
+ };
+ /**
+ * Load not yet loaded URI.
+ * @abstract
+ */
+
+
+ ImageStyle.prototype.load = function () {
+ (0, _util.abstract)();
+ };
+ /**
+ * @abstract
+ * @param {function(import("../events/Event.js").default): void} listener Listener function.
+ */
+
+
+ ImageStyle.prototype.unlistenImageChange = function (listener) {
+ (0, _util.abstract)();
+ };
+
+ return ImageStyle;
+}();
+
+var _default = ImageStyle;
+exports.default = _default;
+},{"../util.js":"../../../node_modules/ol/util.js","../size.js":"../../../node_modules/ol/size.js"}],"../../../node_modules/ol/color.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.asString = asString;
+exports.asArray = asArray;
+exports.normalize = normalize;
+exports.toString = toString;
+exports.isStringColor = isStringColor;
+exports.fromString = void 0;
+
+var _asserts = require("./asserts.js");
+
+var _math = require("./math.js");
+
+/**
+ * @module ol/color
+ */
+
+/**
+ * A color represented as a short array [red, green, blue, alpha].
+ * red, green, and blue should be integers in the range 0..255 inclusive.
+ * alpha should be a float in the range 0..1 inclusive. If no alpha value is
+ * given then `1` will be used.
+ * @typedef {Array<number>} Color
+ * @api
+ */
+
+/**
+ * This RegExp matches # followed by 3, 4, 6, or 8 hex digits.
+ * @const
+ * @type {RegExp}
+ * @private
+ */
+var HEX_COLOR_RE_ = /^#([a-f0-9]{3}|[a-f0-9]{4}(?:[a-f0-9]{2}){0,2})$/i;
+/**
+ * Regular expression for matching potential named color style strings.
+ * @const
+ * @type {RegExp}
+ * @private
+ */
+
+var NAMED_COLOR_RE_ = /^([a-z]*)$|^hsla?\(.*\)$/i;
+/**
+ * Return the color as an rgba string.
+ * @param {Color|string} color Color.
+ * @return {string} Rgba string.
+ * @api
+ */
+
+function asString(color) {
+ if (typeof color === 'string') {
+ return color;
+ } else {
+ return toString(color);
+ }
+}
+/**
+ * Return named color as an rgba string.
+ * @param {string} color Named color.
+ * @return {string} Rgb string.
+ */
+
+
+function fromNamed(color) {
+ var el = document.createElement('div');
+ el.style.color = color;
+
+ if (el.style.color !== '') {
+ document.body.appendChild(el);
+ var rgb = getComputedStyle(el).color;
+ document.body.removeChild(el);
+ return rgb;
+ } else {
+ return '';
+ }
+}
+/**
+ * @param {string} s String.
+ * @return {Color} Color.
+ */
+
+
+var fromString = function () {
+ // We maintain a small cache of parsed strings. To provide cheap LRU-like
+ // semantics, whenever the cache grows too large we simply delete an
+ // arbitrary 25% of the entries.
+
+ /**
+ * @const
+ * @type {number}
+ */
+ var MAX_CACHE_SIZE = 1024;
+ /**
+ * @type {Object<string, Color>}
+ */
+
+ var cache = {};
+ /**
+ * @type {number}
+ */
+
+ var cacheSize = 0;
+ return (
+ /**
+ * @param {string} s String.
+ * @return {Color} Color.
+ */
+ function (s) {
+ var color;
+
+ if (cache.hasOwnProperty(s)) {
+ color = cache[s];
+ } else {
+ if (cacheSize >= MAX_CACHE_SIZE) {
+ var i = 0;
+
+ for (var key in cache) {
+ if ((i++ & 3) === 0) {
+ delete cache[key];
+ --cacheSize;
+ }
+ }
+ }
+
+ color = fromStringInternal_(s);
+ cache[s] = color;
+ ++cacheSize;
+ }
+
+ return color;
+ }
+ );
+}();
+/**
+ * Return the color as an array. This function maintains a cache of calculated
+ * arrays which means the result should not be modified.
+ * @param {Color|string} color Color.
+ * @return {Color} Color.
+ * @api
+ */
+
+
+exports.fromString = fromString;
+
+function asArray(color) {
+ if (Array.isArray(color)) {
+ return color;
+ } else {
+ return fromString(color);
+ }
+}
+/**
+ * @param {string} s String.
+ * @private
+ * @return {Color} Color.
+ */
+
+
+function fromStringInternal_(s) {
+ var r, g, b, a, color;
+
+ if (NAMED_COLOR_RE_.exec(s)) {
+ s = fromNamed(s);
+ }
+
+ if (HEX_COLOR_RE_.exec(s)) {
+ // hex
+ var n = s.length - 1; // number of hex digits
+
+ var d = // number of digits per channel
+ void 0; // number of digits per channel
+
+ if (n <= 4) {
+ d = 1;
+ } else {
+ d = 2;
+ }
+
+ var hasAlpha = n === 4 || n === 8;
+ r = parseInt(s.substr(1 + 0 * d, d), 16);
+ g = parseInt(s.substr(1 + 1 * d, d), 16);
+ b = parseInt(s.substr(1 + 2 * d, d), 16);
+
+ if (hasAlpha) {
+ a = parseInt(s.substr(1 + 3 * d, d), 16);
+ } else {
+ a = 255;
+ }
+
+ if (d == 1) {
+ r = (r << 4) + r;
+ g = (g << 4) + g;
+ b = (b << 4) + b;
+
+ if (hasAlpha) {
+ a = (a << 4) + a;
+ }
+ }
+
+ color = [r, g, b, a / 255];
+ } else if (s.indexOf('rgba(') == 0) {
+ // rgba()
+ color = s.slice(5, -1).split(',').map(Number);
+ normalize(color);
+ } else if (s.indexOf('rgb(') == 0) {
+ // rgb()
+ color = s.slice(4, -1).split(',').map(Number);
+ color.push(1);
+ normalize(color);
+ } else {
+ (0, _asserts.assert)(false, 14); // Invalid color
+ }
+
+ return color;
+}
+/**
+ * TODO this function is only used in the test, we probably shouldn't export it
+ * @param {Color} color Color.
+ * @return {Color} Clamped color.
+ */
+
+
+function normalize(color) {
+ color[0] = (0, _math.clamp)(color[0] + 0.5 | 0, 0, 255);
+ color[1] = (0, _math.clamp)(color[1] + 0.5 | 0, 0, 255);
+ color[2] = (0, _math.clamp)(color[2] + 0.5 | 0, 0, 255);
+ color[3] = (0, _math.clamp)(color[3], 0, 1);
+ return color;
+}
+/**
+ * @param {Color} color Color.
+ * @return {string} String.
+ */
+
+
+function toString(color) {
+ var r = color[0];
+
+ if (r != (r | 0)) {
+ r = r + 0.5 | 0;
+ }
+
+ var g = color[1];
+
+ if (g != (g | 0)) {
+ g = g + 0.5 | 0;
+ }
+
+ var b = color[2];
+
+ if (b != (b | 0)) {
+ b = b + 0.5 | 0;
+ }
+
+ var a = color[3] === undefined ? 1 : color[3];
+ return 'rgba(' + r + ',' + g + ',' + b + ',' + a + ')';
+}
+/**
+ * @param {string} s String.
+ * @return {boolean} Whether the string is actually a valid color
+ */
+
+
+function isStringColor(s) {
+ if (NAMED_COLOR_RE_.test(s)) {
+ s = fromNamed(s);
+ }
+
+ return HEX_COLOR_RE_.test(s) || s.indexOf('rgba(') === 0 || s.indexOf('rgb(') === 0;
+}
+},{"./asserts.js":"../../../node_modules/ol/asserts.js","./math.js":"../../../node_modules/ol/math.js"}],"../../../node_modules/ol/colorlike.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.asColorLike = asColorLike;
+
+var _color = require("./color.js");
+
+/**
+ * @module ol/colorlike
+ */
+
+/**
+ * A type accepted by CanvasRenderingContext2D.fillStyle
+ * or CanvasRenderingContext2D.strokeStyle.
+ * Represents a color, pattern, or gradient. The origin for patterns and
+ * gradients as fill style is an increment of 512 css pixels from map coordinate
+ * `[0, 0]`. For seamless repeat patterns, width and height of the pattern image
+ * must be a factor of two (2, 4, 8, ..., 512).
+ *
+ * @typedef {string|CanvasPattern|CanvasGradient} ColorLike
+ * @api
+ */
+
+/**
+ * @param {import("./color.js").Color|ColorLike} color Color.
+ * @return {ColorLike} The color as an {@link ol/colorlike~ColorLike}.
+ * @api
+ */
+function asColorLike(color) {
+ if (Array.isArray(color)) {
+ return (0, _color.toString)(color);
+ } else {
+ return color;
+ }
+}
+},{"./color.js":"../../../node_modules/ol/color.js"}],"../../../node_modules/ol/has.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.PASSIVE_EVENT_LISTENERS = exports.IMAGE_DECODE = exports.WORKER_OFFSCREEN_CANVAS = exports.DEVICE_PIXEL_RATIO = exports.MAC = exports.WEBKIT = exports.SAFARI = exports.FIREFOX = void 0;
+
+/**
+ * @module ol/has
+ */
+var ua = typeof navigator !== 'undefined' && typeof navigator.userAgent !== 'undefined' ? navigator.userAgent.toLowerCase() : '';
+/**
+ * User agent string says we are dealing with Firefox as browser.
+ * @type {boolean}
+ */
+
+var FIREFOX = ua.indexOf('firefox') !== -1;
+/**
+ * User agent string says we are dealing with Safari as browser.
+ * @type {boolean}
+ */
+
+exports.FIREFOX = FIREFOX;
+var SAFARI = ua.indexOf('safari') !== -1 && ua.indexOf('chrom') == -1;
+/**
+ * User agent string says we are dealing with a WebKit engine.
+ * @type {boolean}
+ */
+
+exports.SAFARI = SAFARI;
+var WEBKIT = ua.indexOf('webkit') !== -1 && ua.indexOf('edge') == -1;
+/**
+ * User agent string says we are dealing with a Mac as platform.
+ * @type {boolean}
+ */
+
+exports.WEBKIT = WEBKIT;
+var MAC = ua.indexOf('macintosh') !== -1;
+/**
+ * The ratio between physical pixels and device-independent pixels
+ * (dips) on the device (`window.devicePixelRatio`).
+ * @const
+ * @type {number}
+ * @api
+ */
+
+exports.MAC = MAC;
+var DEVICE_PIXEL_RATIO = typeof devicePixelRatio !== 'undefined' ? devicePixelRatio : 1;
+/**
+ * The execution context is a worker with OffscreenCanvas available.
+ * @const
+ * @type {boolean}
+ */
+
+exports.DEVICE_PIXEL_RATIO = DEVICE_PIXEL_RATIO;
+var WORKER_OFFSCREEN_CANVAS = typeof WorkerGlobalScope !== 'undefined' && typeof OffscreenCanvas !== 'undefined' && self instanceof WorkerGlobalScope; //eslint-disable-line
+
+/**
+ * Image.prototype.decode() is supported.
+ * @type {boolean}
+ */
+
+exports.WORKER_OFFSCREEN_CANVAS = WORKER_OFFSCREEN_CANVAS;
+var IMAGE_DECODE = typeof Image !== 'undefined' && Image.prototype.decode;
+/**
+ * @type {boolean}
+ */
+
+exports.IMAGE_DECODE = IMAGE_DECODE;
+
+var PASSIVE_EVENT_LISTENERS = function () {
+ var passive = false;
+
+ try {
+ var options = Object.defineProperty({}, 'passive', {
+ get: function () {
+ passive = true;
+ }
+ });
+ window.addEventListener('_', null, options);
+ window.removeEventListener('_', null, options);
+ } catch (error) {// passive not supported
+ }
+
+ return passive;
+}();
+
+exports.PASSIVE_EVENT_LISTENERS = PASSIVE_EVENT_LISTENERS;
+},{}],"../../../node_modules/ol/dom.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.createCanvasContext2D = createCanvasContext2D;
+exports.outerWidth = outerWidth;
+exports.outerHeight = outerHeight;
+exports.replaceNode = replaceNode;
+exports.removeNode = removeNode;
+exports.removeChildren = removeChildren;
+exports.replaceChildren = replaceChildren;
+
+var _has = require("./has.js");
+
+/**
+ * @module ol/dom
+ */
+//FIXME Move this function to the canvas module
+
+/**
+ * Create an html canvas element and returns its 2d context.
+ * @param {number=} opt_width Canvas width.
+ * @param {number=} opt_height Canvas height.
+ * @param {Array<HTMLCanvasElement>=} opt_canvasPool Canvas pool to take existing canvas from.
+ * @return {CanvasRenderingContext2D} The context.
+ */
+function createCanvasContext2D(opt_width, opt_height, opt_canvasPool) {
+ var canvas = opt_canvasPool && opt_canvasPool.length ? opt_canvasPool.shift() : _has.WORKER_OFFSCREEN_CANVAS ? new OffscreenCanvas(opt_width || 300, opt_height || 300) : document.createElement('canvas');
+
+ if (opt_width) {
+ canvas.width = opt_width;
+ }
+
+ if (opt_height) {
+ canvas.height = opt_height;
+ } //FIXME Allow OffscreenCanvasRenderingContext2D as return type
+
+
+ return (
+ /** @type {CanvasRenderingContext2D} */
+ canvas.getContext('2d')
+ );
+}
+/**
+ * Get the current computed width for the given element including margin,
+ * padding and border.
+ * Equivalent to jQuery's `$(el).outerWidth(true)`.
+ * @param {!HTMLElement} element Element.
+ * @return {number} The width.
+ */
+
+
+function outerWidth(element) {
+ var width = element.offsetWidth;
+ var style = getComputedStyle(element);
+ width += parseInt(style.marginLeft, 10) + parseInt(style.marginRight, 10);
+ return width;
+}
+/**
+ * Get the current computed height for the given element including margin,
+ * padding and border.
+ * Equivalent to jQuery's `$(el).outerHeight(true)`.
+ * @param {!HTMLElement} element Element.
+ * @return {number} The height.
+ */
+
+
+function outerHeight(element) {
+ var height = element.offsetHeight;
+ var style = getComputedStyle(element);
+ height += parseInt(style.marginTop, 10) + parseInt(style.marginBottom, 10);
+ return height;
+}
+/**
+ * @param {Node} newNode Node to replace old node
+ * @param {Node} oldNode The node to be replaced
+ */
+
+
+function replaceNode(newNode, oldNode) {
+ var parent = oldNode.parentNode;
+
+ if (parent) {
+ parent.replaceChild(newNode, oldNode);
+ }
+}
+/**
+ * @param {Node} node The node to remove.
+ * @returns {Node} The node that was removed or null.
+ */
+
+
+function removeNode(node) {
+ return node && node.parentNode ? node.parentNode.removeChild(node) : null;
+}
+/**
+ * @param {Node} node The node to remove the children from.
+ */
+
+
+function removeChildren(node) {
+ while (node.lastChild) {
+ node.removeChild(node.lastChild);
+ }
+}
+/**
+ * Transform the children of a parent node so they match the
+ * provided list of children. This function aims to efficiently
+ * remove, add, and reorder child nodes while maintaining a simple
+ * implementation (it is not guaranteed to minimize DOM operations).
+ * @param {Node} node The parent node whose children need reworking.
+ * @param {Array<Node>} children The desired children.
+ */
+
+
+function replaceChildren(node, children) {
+ var oldChildren = node.childNodes;
+
+ for (var i = 0; true; ++i) {
+ var oldChild = oldChildren[i];
+ var newChild = children[i]; // check if our work is done
+
+ if (!oldChild && !newChild) {
+ break;
+ } // check if children match
+
+
+ if (oldChild === newChild) {
+ continue;
+ } // check if a new child needs to be added
+
+
+ if (!oldChild) {
+ node.appendChild(newChild);
+ continue;
+ } // check if an old child needs to be removed
+
+
+ if (!newChild) {
+ node.removeChild(oldChild);
+ --i;
+ continue;
+ } // reorder
+
+
+ node.insertBefore(newChild, oldChild);
+ }
+}
+},{"./has.js":"../../../node_modules/ol/has.js"}],"../../../node_modules/ol/css.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.getFontParameters = exports.CLASS_COLLAPSED = exports.CLASS_CONTROL = exports.CLASS_UNSUPPORTED = exports.CLASS_UNSELECTABLE = exports.CLASS_SELECTABLE = exports.CLASS_HIDDEN = void 0;
+
+/**
+ * @module ol/css
+ */
+
+/**
+ * @typedef {Object} FontParameters
+ * @property {string} style
+ * @property {string} variant
+ * @property {string} weight
+ * @property {string} size
+ * @property {string} lineHeight
+ * @property {string} family
+ * @property {Array<string>} families
+ */
+
+/**
+ * The CSS class for hidden feature.
+ *
+ * @const
+ * @type {string}
+ */
+var CLASS_HIDDEN = 'ol-hidden';
+/**
+ * The CSS class that we'll give the DOM elements to have them selectable.
+ *
+ * @const
+ * @type {string}
+ */
+
+exports.CLASS_HIDDEN = CLASS_HIDDEN;
+var CLASS_SELECTABLE = 'ol-selectable';
+/**
+ * The CSS class that we'll give the DOM elements to have them unselectable.
+ *
+ * @const
+ * @type {string}
+ */
+
+exports.CLASS_SELECTABLE = CLASS_SELECTABLE;
+var CLASS_UNSELECTABLE = 'ol-unselectable';
+/**
+ * The CSS class for unsupported feature.
+ *
+ * @const
+ * @type {string}
+ */
+
+exports.CLASS_UNSELECTABLE = CLASS_UNSELECTABLE;
+var CLASS_UNSUPPORTED = 'ol-unsupported';
+/**
+ * The CSS class for controls.
+ *
+ * @const
+ * @type {string}
+ */
+
+exports.CLASS_UNSUPPORTED = CLASS_UNSUPPORTED;
+var CLASS_CONTROL = 'ol-control';
+/**
+ * The CSS class that we'll give the DOM elements that are collapsed, i.e.
+ * to those elements which usually can be expanded.
+ *
+ * @const
+ * @type {string}
+ */
+
+exports.CLASS_CONTROL = CLASS_CONTROL;
+var CLASS_COLLAPSED = 'ol-collapsed';
+/**
+ * From http://stackoverflow.com/questions/10135697/regex-to-parse-any-css-font
+ * @type {RegExp}
+ */
+
+exports.CLASS_COLLAPSED = CLASS_COLLAPSED;
+var fontRegEx = new RegExp(['^\\s*(?=(?:(?:[-a-z]+\\s*){0,2}(italic|oblique))?)', '(?=(?:(?:[-a-z]+\\s*){0,2}(small-caps))?)', '(?=(?:(?:[-a-z]+\\s*){0,2}(bold(?:er)?|lighter|[1-9]00 ))?)', '(?:(?:normal|\\1|\\2|\\3)\\s*){0,3}((?:xx?-)?', '(?:small|large)|medium|smaller|larger|[\\.\\d]+(?:\\%|in|[cem]m|ex|p[ctx]))', '(?:\\s*\\/\\s*(normal|[\\.\\d]+(?:\\%|in|[cem]m|ex|p[ctx])?))', '?\\s*([-,\\"\\\'\\sa-z]+?)\\s*$'].join(''), 'i');
+var fontRegExMatchIndex = ['style', 'variant', 'weight', 'size', 'lineHeight', 'family'];
+/**
+ * Get the list of font families from a font spec. Note that this doesn't work
+ * for font families that have commas in them.
+ * @param {string} fontSpec The CSS font property.
+ * @return {FontParameters} The font parameters (or null if the input spec is invalid).
+ */
+
+var getFontParameters = function (fontSpec) {
+ var match = fontSpec.match(fontRegEx);
+
+ if (!match) {
+ return null;
+ }
+
+ var style =
+ /** @type {FontParameters} */
+ {
+ lineHeight: 'normal',
+ size: '1.2em',
+ style: 'normal',
+ weight: 'normal',
+ variant: 'normal'
+ };
+
+ for (var i = 0, ii = fontRegExMatchIndex.length; i < ii; ++i) {
+ var value = match[i + 1];
+
+ if (value !== undefined) {
+ style[fontRegExMatchIndex[i]] = value;
+ }
+ }
+
+ style.families = style.family.split(/,\s?/);
+ return style;
+};
+
+exports.getFontParameters = getFontParameters;
+},{}],"../../../node_modules/ol/render/canvas.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.measureTextWidth = measureTextWidth;
+exports.measureAndCacheTextWidth = measureAndCacheTextWidth;
+exports.measureTextWidths = measureTextWidths;
+exports.rotateAtOffset = rotateAtOffset;
+exports.drawImageOrLabel = drawImageOrLabel;
+exports.createTransformString = createTransformString;
+exports.measureTextHeight = exports.registerFont = exports.textHeights = exports.labelCache = exports.checkedFonts = exports.defaultLineWidth = exports.defaultPadding = exports.defaultTextBaseline = exports.defaultTextAlign = exports.defaultStrokeStyle = exports.defaultMiterLimit = exports.defaultLineJoin = exports.defaultLineDashOffset = exports.defaultLineDash = exports.defaultLineCap = exports.defaultFillStyle = exports.defaultFont = void 0;
+
+var _Object = _interopRequireDefault(require("../Object.js"));
+
+var _Target = _interopRequireDefault(require("../events/Target.js"));
+
+var _has = require("../has.js");
+
+var _obj = require("../obj.js");
+
+var _dom = require("../dom.js");
+
+var _css = require("../css.js");
+
+var _transform = require("../transform.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module ol/render/canvas
+ */
+
+/**
+ * @typedef {Object} FillState
+ * @property {import("../colorlike.js").ColorLike} fillStyle
+ */
+
+/**
+ * @typedef Label
+ * @property {number} width
+ * @property {number} height
+ * @property {Array<string|number>} contextInstructions
+ */
+
+/**
+ * @typedef {Object} FillStrokeState
+ * @property {import("../colorlike.js").ColorLike} [currentFillStyle]
+ * @property {import("../colorlike.js").ColorLike} [currentStrokeStyle]
+ * @property {CanvasLineCap} [currentLineCap]
+ * @property {Array<number>} currentLineDash
+ * @property {number} [currentLineDashOffset]
+ * @property {CanvasLineJoin} [currentLineJoin]
+ * @property {number} [currentLineWidth]
+ * @property {number} [currentMiterLimit]
+ * @property {number} [lastStroke]
+ * @property {import("../colorlike.js").ColorLike} [fillStyle]
+ * @property {import("../colorlike.js").ColorLike} [strokeStyle]
+ * @property {CanvasLineCap} [lineCap]
+ * @property {Array<number>} lineDash
+ * @property {number} [lineDashOffset]
+ * @property {CanvasLineJoin} [lineJoin]
+ * @property {number} [lineWidth]
+ * @property {number} [miterLimit]
+ */
+
+/**
+ * @typedef {Object} StrokeState
+ * @property {CanvasLineCap} lineCap
+ * @property {Array<number>} lineDash
+ * @property {number} lineDashOffset
+ * @property {CanvasLineJoin} lineJoin
+ * @property {number} lineWidth
+ * @property {number} miterLimit
+ * @property {import("../colorlike.js").ColorLike} strokeStyle
+ */
+
+/**
+ * @typedef {Object} TextState
+ * @property {string} font
+ * @property {string} [textAlign]
+ * @property {string} textBaseline
+ * @property {string} [placement]
+ * @property {number} [maxAngle]
+ * @property {boolean} [overflow]
+ * @property {import("../style/Fill.js").default} [backgroundFill]
+ * @property {import("../style/Stroke.js").default} [backgroundStroke]
+ * @property {import("../size.js").Size} [scale]
+ * @property {Array<number>} [padding]
+ */
+
+/**
+ * Container for decluttered replay instructions that need to be rendered or
+ * omitted together, i.e. when styles render both an image and text, or for the
+ * characters that form text along lines. The basic elements of this array are
+ * `[minX, minY, maxX, maxY, count]`, where the first four entries are the
+ * rendered extent of the group in pixel space. `count` is the number of styles
+ * in the group, i.e. 2 when an image and a text are grouped, or 1 otherwise.
+ * In addition to these four elements, declutter instruction arrays (i.e. the
+ * arguments to {@link module:ol/render/canvas~drawImage} are appended to the array.
+ * @typedef {Array<*>} DeclutterGroup
+ */
+
+/**
+ * Declutter groups for support of multi geometries.
+ * @typedef {Array<DeclutterGroup>} DeclutterGroups
+ */
+
+/**
+ * @const
+ * @type {string}
+ */
+var defaultFont = '10px sans-serif';
+/**
+ * @const
+ * @type {import("../colorlike.js").ColorLike}
+ */
+
+exports.defaultFont = defaultFont;
+var defaultFillStyle = '#000';
+/**
+ * @const
+ * @type {CanvasLineCap}
+ */
+
+exports.defaultFillStyle = defaultFillStyle;
+var defaultLineCap = 'round';
+/**
+ * @const
+ * @type {Array<number>}
+ */
+
+exports.defaultLineCap = defaultLineCap;
+var defaultLineDash = [];
+/**
+ * @const
+ * @type {number}
+ */
+
+exports.defaultLineDash = defaultLineDash;
+var defaultLineDashOffset = 0;
+/**
+ * @const
+ * @type {CanvasLineJoin}
+ */
+
+exports.defaultLineDashOffset = defaultLineDashOffset;
+var defaultLineJoin = 'round';
+/**
+ * @const
+ * @type {number}
+ */
+
+exports.defaultLineJoin = defaultLineJoin;
+var defaultMiterLimit = 10;
+/**
+ * @const
+ * @type {import("../colorlike.js").ColorLike}
+ */
+
+exports.defaultMiterLimit = defaultMiterLimit;
+var defaultStrokeStyle = '#000';
+/**
+ * @const
+ * @type {string}
+ */
+
+exports.defaultStrokeStyle = defaultStrokeStyle;
+var defaultTextAlign = 'center';
+/**
+ * @const
+ * @type {string}
+ */
+
+exports.defaultTextAlign = defaultTextAlign;
+var defaultTextBaseline = 'middle';
+/**
+ * @const
+ * @type {Array<number>}
+ */
+
+exports.defaultTextBaseline = defaultTextBaseline;
+var defaultPadding = [0, 0, 0, 0];
+/**
+ * @const
+ * @type {number}
+ */
+
+exports.defaultPadding = defaultPadding;
+var defaultLineWidth = 1;
+/**
+ * @type {BaseObject}
+ */
+
+exports.defaultLineWidth = defaultLineWidth;
+var checkedFonts = new _Object.default();
+/**
+ * The label cache for text rendering. To change the default cache size of 2048
+ * entries, use {@link module:ol/structs/LRUCache#setSize}.
+ * Deprecated - there is no label cache any more.
+ * @type {?}
+ * @api
+ * @deprecated
+ */
+
+exports.checkedFonts = checkedFonts;
+var labelCache = new _Target.default();
+exports.labelCache = labelCache;
+
+labelCache.setSize = function () {
+ console.warn('labelCache is deprecated.'); //eslint-disable-line
+};
+/**
+ * @type {CanvasRenderingContext2D}
+ */
+
+
+var measureContext = null;
+/**
+ * @type {string}
+ */
+
+var measureFont;
+/**
+ * @type {!Object<string, number>}
+ */
+
+var textHeights = {};
+/**
+ * Clears the label cache when a font becomes available.
+ * @param {string} fontSpec CSS font spec.
+ */
+
+exports.textHeights = textHeights;
+
+var registerFont = function () {
+ var retries = 100;
+ var size = '32px ';
+ var referenceFonts = ['monospace', 'serif'];
+ var len = referenceFonts.length;
+ var text = 'wmytzilWMYTZIL@#/&?$%10\uF013';
+ var interval, referenceWidth;
+ /**
+ * @param {string} fontStyle Css font-style
+ * @param {string} fontWeight Css font-weight
+ * @param {*} fontFamily Css font-family
+ * @return {boolean} Font with style and weight is available
+ */
+
+ function isAvailable(fontStyle, fontWeight, fontFamily) {
+ var available = true;
+
+ for (var i = 0; i < len; ++i) {
+ var referenceFont = referenceFonts[i];
+ referenceWidth = measureTextWidth(fontStyle + ' ' + fontWeight + ' ' + size + referenceFont, text);
+
+ if (fontFamily != referenceFont) {
+ var width = measureTextWidth(fontStyle + ' ' + fontWeight + ' ' + size + fontFamily + ',' + referenceFont, text); // If width and referenceWidth are the same, then the fallback was used
+ // instead of the font we wanted, so the font is not available.
+
+ available = available && width != referenceWidth;
+ }
+ }
+
+ if (available) {
+ return true;
+ }
+
+ return false;
+ }
+
+ function check() {
+ var done = true;
+ var fonts = checkedFonts.getKeys();
+
+ for (var i = 0, ii = fonts.length; i < ii; ++i) {
+ var font = fonts[i];
+
+ if (checkedFonts.get(font) < retries) {
+ if (isAvailable.apply(this, font.split('\n'))) {
+ (0, _obj.clear)(textHeights); // Make sure that loaded fonts are picked up by Safari
+
+ measureContext = null;
+ measureFont = undefined;
+ checkedFonts.set(font, retries);
+ } else {
+ checkedFonts.set(font, checkedFonts.get(font) + 1, true);
+ done = false;
+ }
+ }
+ }
+
+ if (done) {
+ clearInterval(interval);
+ interval = undefined;
+ }
+ }
+
+ return function (fontSpec) {
+ var font = (0, _css.getFontParameters)(fontSpec);
+
+ if (!font) {
+ return;
+ }
+
+ var families = font.families;
+
+ for (var i = 0, ii = families.length; i < ii; ++i) {
+ var family = families[i];
+ var key = font.style + '\n' + font.weight + '\n' + family;
+
+ if (checkedFonts.get(key) === undefined) {
+ checkedFonts.set(key, retries, true);
+
+ if (!isAvailable(font.style, font.weight, family)) {
+ checkedFonts.set(key, 0, true);
+
+ if (interval === undefined) {
+ interval = setInterval(check, 32);
+ }
+ }
+ }
+ }
+ };
+}();
+/**
+ * @param {string} font Font to use for measuring.
+ * @return {import("../size.js").Size} Measurement.
+ */
+
+
+exports.registerFont = registerFont;
+
+var measureTextHeight = function () {
+ /**
+ * @type {HTMLDivElement}
+ */
+ var div;
+ var heights = textHeights;
+ return function (fontSpec) {
+ var height = heights[fontSpec];
+
+ if (height == undefined) {
+ if (_has.WORKER_OFFSCREEN_CANVAS) {
+ var font = (0, _css.getFontParameters)(fontSpec);
+ var metrics = measureText(fontSpec, 'Žg');
+ var lineHeight = isNaN(Number(font.lineHeight)) ? 1.2 : Number(font.lineHeight);
+ textHeights[fontSpec] = lineHeight * (metrics.actualBoundingBoxAscent + metrics.actualBoundingBoxDescent);
+ } else {
+ if (!div) {
+ div = document.createElement('div');
+ div.innerHTML = 'M';
+ div.style.margin = '0 !important';
+ div.style.padding = '0 !important';
+ div.style.position = 'absolute !important';
+ div.style.left = '-99999px !important';
+ }
+
+ div.style.font = fontSpec;
+ document.body.appendChild(div);
+ height = div.offsetHeight;
+ heights[fontSpec] = height;
+ document.body.removeChild(div);
+ }
+ }
+
+ return height;
+ };
+}();
+/**
+ * @param {string} font Font.
+ * @param {string} text Text.
+ * @return {TextMetrics} Text metrics.
+ */
+
+
+exports.measureTextHeight = measureTextHeight;
+
+function measureText(font, text) {
+ if (!measureContext) {
+ measureContext = (0, _dom.createCanvasContext2D)(1, 1);
+ }
+
+ if (font != measureFont) {
+ measureContext.font = font;
+ measureFont = measureContext.font;
+ }
+
+ return measureContext.measureText(text);
+}
+/**
+ * @param {string} font Font.
+ * @param {string} text Text.
+ * @return {number} Width.
+ */
+
+
+function measureTextWidth(font, text) {
+ return measureText(font, text).width;
+}
+/**
+ * Measure text width using a cache.
+ * @param {string} font The font.
+ * @param {string} text The text to measure.
+ * @param {Object<string, number>} cache A lookup of cached widths by text.
+ * @returns {number} The text width.
+ */
+
+
+function measureAndCacheTextWidth(font, text, cache) {
+ if (text in cache) {
+ return cache[text];
+ }
+
+ var width = measureTextWidth(font, text);
+ cache[text] = width;
+ return width;
+}
+/**
+ * @param {string} font Font to use for measuring.
+ * @param {Array<string>} lines Lines to measure.
+ * @param {Array<number>} widths Array will be populated with the widths of
+ * each line.
+ * @return {number} Width of the whole text.
+ */
+
+
+function measureTextWidths(font, lines, widths) {
+ var numLines = lines.length;
+ var width = 0;
+
+ for (var i = 0; i < numLines; ++i) {
+ var currentWidth = measureTextWidth(font, lines[i]);
+ width = Math.max(width, currentWidth);
+ widths.push(currentWidth);
+ }
+
+ return width;
+}
+/**
+ * @param {CanvasRenderingContext2D} context Context.
+ * @param {number} rotation Rotation.
+ * @param {number} offsetX X offset.
+ * @param {number} offsetY Y offset.
+ */
+
+
+function rotateAtOffset(context, rotation, offsetX, offsetY) {
+ if (rotation !== 0) {
+ context.translate(offsetX, offsetY);
+ context.rotate(rotation);
+ context.translate(-offsetX, -offsetY);
+ }
+}
+/**
+ * @param {CanvasRenderingContext2D} context Context.
+ * @param {import("../transform.js").Transform|null} transform Transform.
+ * @param {number} opacity Opacity.
+ * @param {Label|HTMLCanvasElement|HTMLImageElement|HTMLVideoElement} labelOrImage Label.
+ * @param {number} originX Origin X.
+ * @param {number} originY Origin Y.
+ * @param {number} w Width.
+ * @param {number} h Height.
+ * @param {number} x X.
+ * @param {number} y Y.
+ * @param {import("../size.js").Size} scale Scale.
+ */
+
+
+function drawImageOrLabel(context, transform, opacity, labelOrImage, originX, originY, w, h, x, y, scale) {
+ context.save();
+
+ if (opacity !== 1) {
+ context.globalAlpha *= opacity;
+ }
+
+ if (transform) {
+ context.setTransform.apply(context, transform);
+ }
+
+ if (
+ /** @type {*} */
+ labelOrImage.contextInstructions) {
+ // label
+ context.translate(x, y);
+ context.scale(scale[0], scale[1]);
+ executeLabelInstructions(
+ /** @type {Label} */
+ labelOrImage, context);
+ } else if (scale[0] < 0 || scale[1] < 0) {
+ // flipped image
+ context.translate(x, y);
+ context.scale(scale[0], scale[1]);
+ context.drawImage(
+ /** @type {HTMLCanvasElement|HTMLImageElement|HTMLVideoElement} */
+ labelOrImage, originX, originY, w, h, 0, 0, w, h);
+ } else {
+ // if image not flipped translate and scale can be avoided
+ context.drawImage(
+ /** @type {HTMLCanvasElement|HTMLImageElement|HTMLVideoElement} */
+ labelOrImage, originX, originY, w, h, x, y, w * scale[0], h * scale[1]);
+ }
+
+ context.restore();
+}
+/**
+ * @param {Label} label Label.
+ * @param {CanvasRenderingContext2D} context Context.
+ */
+
+
+function executeLabelInstructions(label, context) {
+ var contextInstructions = label.contextInstructions;
+
+ for (var i = 0, ii = contextInstructions.length; i < ii; i += 2) {
+ if (Array.isArray(contextInstructions[i + 1])) {
+ context[contextInstructions[i]].apply(context, contextInstructions[i + 1]);
+ } else {
+ context[contextInstructions[i]] = contextInstructions[i + 1];
+ }
+ }
+}
+/**
+ * @type {HTMLCanvasElement}
+ * @private
+ */
+
+
+var createTransformStringCanvas = null;
+/**
+ * @param {import("../transform.js").Transform} transform Transform.
+ * @return {string} CSS transform.
+ */
+
+function createTransformString(transform) {
+ if (_has.WORKER_OFFSCREEN_CANVAS) {
+ return (0, _transform.toString)(transform);
+ } else {
+ if (!createTransformStringCanvas) {
+ createTransformStringCanvas = (0, _dom.createCanvasContext2D)(1, 1).canvas;
+ }
+
+ createTransformStringCanvas.style.transform = (0, _transform.toString)(transform);
+ return createTransformStringCanvas.style.transform;
+ }
+}
+},{"../Object.js":"../../../node_modules/ol/Object.js","../events/Target.js":"../../../node_modules/ol/events/Target.js","../has.js":"../../../node_modules/ol/has.js","../obj.js":"../../../node_modules/ol/obj.js","../dom.js":"../../../node_modules/ol/dom.js","../css.js":"../../../node_modules/ol/css.js","../transform.js":"../../../node_modules/ol/transform.js"}],"../../../node_modules/ol/style/RegularShape.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _ImageState = _interopRequireDefault(require("../ImageState.js"));
+
+var _Image = _interopRequireDefault(require("./Image.js"));
+
+var _color = require("../color.js");
+
+var _colorlike = require("../colorlike.js");
+
+var _dom = require("../dom.js");
+
+var _canvas = require("../render/canvas.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module ol/style/RegularShape
+ */
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+
+/**
+ * Specify radius for regular polygons, or radius1 and radius2 for stars.
+ * @typedef {Object} Options
+ * @property {import("./Fill.js").default} [fill] Fill style.
+ * @property {number} points Number of points for stars and regular polygons. In case of a polygon, the number of points
+ * is the number of sides.
+ * @property {number} [radius] Radius of a regular polygon.
+ * @property {number} [radius1] Outer radius of a star.
+ * @property {number} [radius2] Inner radius of a star.
+ * @property {number} [angle=0] Shape's angle in radians. A value of 0 will have one of the shape's point facing up.
+ * @property {Array<number>} [displacement=[0,0]] Displacement of the shape
+ * @property {import("./Stroke.js").default} [stroke] Stroke style.
+ * @property {number} [rotation=0] Rotation in radians (positive rotation clockwise).
+ * @property {boolean} [rotateWithView=false] Whether to rotate the shape with the view.
+ */
+
+/**
+ * @typedef {Object} RenderOptions
+ * @property {import("../colorlike.js").ColorLike} [strokeStyle]
+ * @property {number} strokeWidth
+ * @property {number} size
+ * @property {CanvasLineCap} lineCap
+ * @property {Array<number>} lineDash
+ * @property {number} lineDashOffset
+ * @property {CanvasLineJoin} lineJoin
+ * @property {number} miterLimit
+ */
+
+/**
+ * @classdesc
+ * Set regular shape style for vector features. The resulting shape will be
+ * a regular polygon when `radius` is provided, or a star when `radius1` and
+ * `radius2` are provided.
+ * @api
+ */
+var RegularShape =
+/** @class */
+function (_super) {
+ __extends(RegularShape, _super);
+ /**
+ * @param {Options} options Options.
+ */
+
+
+ function RegularShape(options) {
+ var _this = this;
+ /**
+ * @type {boolean}
+ */
+
+
+ var rotateWithView = options.rotateWithView !== undefined ? options.rotateWithView : false;
+ _this = _super.call(this, {
+ opacity: 1,
+ rotateWithView: rotateWithView,
+ rotation: options.rotation !== undefined ? options.rotation : 0,
+ scale: 1,
+ displacement: options.displacement !== undefined ? options.displacement : [0, 0]
+ }) || this;
+ /**
+ * @private
+ * @type {Object<number, HTMLCanvasElement>}
+ */
+
+ _this.canvas_ = {};
+ /**
+ * @private
+ * @type {HTMLCanvasElement}
+ */
+
+ _this.hitDetectionCanvas_ = null;
+ /**
+ * @private
+ * @type {import("./Fill.js").default}
+ */
+
+ _this.fill_ = options.fill !== undefined ? options.fill : null;
+ /**
+ * @private
+ * @type {Array<number>}
+ */
+
+ _this.origin_ = [0, 0];
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.points_ = options.points;
+ /**
+ * @protected
+ * @type {number}
+ */
+
+ _this.radius_ = options.radius !== undefined ? options.radius : options.radius1;
+ /**
+ * @private
+ * @type {number|undefined}
+ */
+
+ _this.radius2_ = options.radius2;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.angle_ = options.angle !== undefined ? options.angle : 0;
+ /**
+ * @private
+ * @type {import("./Stroke.js").default}
+ */
+
+ _this.stroke_ = options.stroke !== undefined ? options.stroke : null;
+ /**
+ * @private
+ * @type {Array<number>}
+ */
+
+ _this.anchor_ = null;
+ /**
+ * @private
+ * @type {import("../size.js").Size}
+ */
+
+ _this.size_ = null;
+ /**
+ * @private
+ * @type {import("../size.js").Size}
+ */
+
+ _this.imageSize_ = null;
+ /**
+ * @private
+ * @type {import("../size.js").Size}
+ */
+
+ _this.hitDetectionImageSize_ = null;
+
+ _this.render();
+
+ return _this;
+ }
+ /**
+ * Clones the style.
+ * @return {RegularShape} The cloned style.
+ * @api
+ */
+
+
+ RegularShape.prototype.clone = function () {
+ var style = new RegularShape({
+ fill: this.getFill() ? this.getFill().clone() : undefined,
+ points: this.getPoints(),
+ radius: this.getRadius(),
+ radius2: this.getRadius2(),
+ angle: this.getAngle(),
+ stroke: this.getStroke() ? this.getStroke().clone() : undefined,
+ rotation: this.getRotation(),
+ rotateWithView: this.getRotateWithView(),
+ displacement: this.getDisplacement().slice()
+ });
+ style.setOpacity(this.getOpacity());
+ style.setScale(this.getScale());
+ return style;
+ };
+ /**
+ * Get the anchor point in pixels. The anchor determines the center point for the
+ * symbolizer.
+ * @return {Array<number>} Anchor.
+ * @api
+ */
+
+
+ RegularShape.prototype.getAnchor = function () {
+ return this.anchor_;
+ };
+ /**
+ * Get the angle used in generating the shape.
+ * @return {number} Shape's rotation in radians.
+ * @api
+ */
+
+
+ RegularShape.prototype.getAngle = function () {
+ return this.angle_;
+ };
+ /**
+ * Get the fill style for the shape.
+ * @return {import("./Fill.js").default} Fill style.
+ * @api
+ */
+
+
+ RegularShape.prototype.getFill = function () {
+ return this.fill_;
+ };
+ /**
+ * @return {HTMLCanvasElement} Image element.
+ */
+
+
+ RegularShape.prototype.getHitDetectionImage = function () {
+ if (!this.hitDetectionCanvas_) {
+ var renderOptions = this.createRenderOptions();
+ this.createHitDetectionCanvas_(renderOptions);
+ }
+
+ return this.hitDetectionCanvas_;
+ };
+ /**
+ * Get the image icon.
+ * @param {number} pixelRatio Pixel ratio.
+ * @return {HTMLCanvasElement} Image or Canvas element.
+ * @api
+ */
+
+
+ RegularShape.prototype.getImage = function (pixelRatio) {
+ if (!this.canvas_[pixelRatio || 1]) {
+ var renderOptions = this.createRenderOptions();
+ var context = (0, _dom.createCanvasContext2D)(renderOptions.size * pixelRatio || 1, renderOptions.size * pixelRatio || 1);
+ this.draw_(renderOptions, context, 0, 0, pixelRatio || 1);
+ this.canvas_[pixelRatio || 1] = context.canvas;
+ }
+
+ return this.canvas_[pixelRatio || 1];
+ };
+ /*
+ * Get the image pixel ratio.
+ * @param {number} pixelRatio Pixel ratio.
+ * */
+
+
+ RegularShape.prototype.getPixelRatio = function (pixelRatio) {
+ return pixelRatio;
+ };
+ /**
+ * @return {import("../size.js").Size} Image size.
+ */
+
+
+ RegularShape.prototype.getImageSize = function () {
+ return this.imageSize_;
+ };
+ /**
+ * @return {import("../size.js").Size} Size of the hit-detection image.
+ */
+
+
+ RegularShape.prototype.getHitDetectionImageSize = function () {
+ return this.hitDetectionImageSize_;
+ };
+ /**
+ * @return {import("../ImageState.js").default} Image state.
+ */
+
+
+ RegularShape.prototype.getImageState = function () {
+ return _ImageState.default.LOADED;
+ };
+ /**
+ * Get the origin of the symbolizer.
+ * @return {Array<number>} Origin.
+ * @api
+ */
+
+
+ RegularShape.prototype.getOrigin = function () {
+ return this.origin_;
+ };
+ /**
+ * Get the number of points for generating the shape.
+ * @return {number} Number of points for stars and regular polygons.
+ * @api
+ */
+
+
+ RegularShape.prototype.getPoints = function () {
+ return this.points_;
+ };
+ /**
+ * Get the (primary) radius for the shape.
+ * @return {number} Radius.
+ * @api
+ */
+
+
+ RegularShape.prototype.getRadius = function () {
+ return this.radius_;
+ };
+ /**
+ * Get the secondary radius for the shape.
+ * @return {number|undefined} Radius2.
+ * @api
+ */
+
+
+ RegularShape.prototype.getRadius2 = function () {
+ return this.radius2_;
+ };
+ /**
+ * Get the size of the symbolizer (in pixels).
+ * @return {import("../size.js").Size} Size.
+ * @api
+ */
+
+
+ RegularShape.prototype.getSize = function () {
+ return this.size_;
+ };
+ /**
+ * Get the stroke style for the shape.
+ * @return {import("./Stroke.js").default} Stroke style.
+ * @api
+ */
+
+
+ RegularShape.prototype.getStroke = function () {
+ return this.stroke_;
+ };
+ /**
+ * @param {function(import("../events/Event.js").default): void} listener Listener function.
+ */
+
+
+ RegularShape.prototype.listenImageChange = function (listener) {};
+ /**
+ * Load not yet loaded URI.
+ */
+
+
+ RegularShape.prototype.load = function () {};
+ /**
+ * @param {function(import("../events/Event.js").default): void} listener Listener function.
+ */
+
+
+ RegularShape.prototype.unlistenImageChange = function (listener) {};
+ /**
+ * @returns {RenderOptions} The render options
+ * @protected
+ */
+
+
+ RegularShape.prototype.createRenderOptions = function () {
+ var lineCap = _canvas.defaultLineCap;
+ var lineJoin = _canvas.defaultLineJoin;
+ var miterLimit = 0;
+ var lineDash = null;
+ var lineDashOffset = 0;
+ var strokeStyle;
+ var strokeWidth = 0;
+
+ if (this.stroke_) {
+ strokeStyle = this.stroke_.getColor();
+
+ if (strokeStyle === null) {
+ strokeStyle = _canvas.defaultStrokeStyle;
+ }
+
+ strokeStyle = (0, _colorlike.asColorLike)(strokeStyle);
+ strokeWidth = this.stroke_.getWidth();
+
+ if (strokeWidth === undefined) {
+ strokeWidth = _canvas.defaultLineWidth;
+ }
+
+ lineDash = this.stroke_.getLineDash();
+ lineDashOffset = this.stroke_.getLineDashOffset();
+ lineJoin = this.stroke_.getLineJoin();
+
+ if (lineJoin === undefined) {
+ lineJoin = _canvas.defaultLineJoin;
+ }
+
+ lineCap = this.stroke_.getLineCap();
+
+ if (lineCap === undefined) {
+ lineCap = _canvas.defaultLineCap;
+ }
+
+ miterLimit = this.stroke_.getMiterLimit();
+
+ if (miterLimit === undefined) {
+ miterLimit = _canvas.defaultMiterLimit;
+ }
+ }
+
+ var size = 2 * (this.radius_ + strokeWidth) + 1;
+ return {
+ strokeStyle: strokeStyle,
+ strokeWidth: strokeWidth,
+ size: size,
+ lineCap: lineCap,
+ lineDash: lineDash,
+ lineDashOffset: lineDashOffset,
+ lineJoin: lineJoin,
+ miterLimit: miterLimit
+ };
+ };
+ /**
+ * @protected
+ */
+
+
+ RegularShape.prototype.render = function () {
+ var renderOptions = this.createRenderOptions();
+ var context = (0, _dom.createCanvasContext2D)(renderOptions.size, renderOptions.size);
+ this.draw_(renderOptions, context, 0, 0, 1);
+ this.canvas_[1] = context.canvas; // canvas.width and height are rounded to the closest integer
+
+ var size = context.canvas.width;
+ var imageSize = size;
+ var displacement = this.getDisplacement();
+ this.hitDetectionImageSize_ = [renderOptions.size, renderOptions.size];
+ this.createHitDetectionCanvas_(renderOptions);
+ this.anchor_ = [size / 2 - displacement[0], size / 2 + displacement[1]];
+ this.size_ = [size, size];
+ this.imageSize_ = [imageSize, imageSize];
+ };
+ /**
+ * @private
+ * @param {RenderOptions} renderOptions Render options.
+ * @param {CanvasRenderingContext2D} context The rendering context.
+ * @param {number} x The origin for the symbol (x).
+ * @param {number} y The origin for the symbol (y).
+ * @param {number} pixelRatio The pixel ratio.
+ */
+
+
+ RegularShape.prototype.draw_ = function (renderOptions, context, x, y, pixelRatio) {
+ var i, angle0, radiusC; // reset transform
+
+ context.setTransform(pixelRatio, 0, 0, pixelRatio, 0, 0); // then move to (x, y)
+
+ context.translate(x, y);
+ context.beginPath();
+ var points = this.points_;
+
+ if (points === Infinity) {
+ context.arc(renderOptions.size / 2, renderOptions.size / 2, this.radius_, 0, 2 * Math.PI, true);
+ } else {
+ var radius2 = this.radius2_ !== undefined ? this.radius2_ : this.radius_;
+
+ if (radius2 !== this.radius_) {
+ points = 2 * points;
+ }
+
+ for (i = 0; i <= points; i++) {
+ angle0 = i * 2 * Math.PI / points - Math.PI / 2 + this.angle_;
+ radiusC = i % 2 === 0 ? this.radius_ : radius2;
+ context.lineTo(renderOptions.size / 2 + radiusC * Math.cos(angle0), renderOptions.size / 2 + radiusC * Math.sin(angle0));
+ }
+ }
+
+ if (this.fill_) {
+ var color = this.fill_.getColor();
+
+ if (color === null) {
+ color = _canvas.defaultFillStyle;
+ }
+
+ context.fillStyle = (0, _colorlike.asColorLike)(color);
+ context.fill();
+ }
+
+ if (this.stroke_) {
+ context.strokeStyle = renderOptions.strokeStyle;
+ context.lineWidth = renderOptions.strokeWidth;
+
+ if (context.setLineDash && renderOptions.lineDash) {
+ context.setLineDash(renderOptions.lineDash);
+ context.lineDashOffset = renderOptions.lineDashOffset;
+ }
+
+ context.lineCap = renderOptions.lineCap;
+ context.lineJoin = renderOptions.lineJoin;
+ context.miterLimit = renderOptions.miterLimit;
+ context.stroke();
+ }
+
+ context.closePath();
+ };
+ /**
+ * @private
+ * @param {RenderOptions} renderOptions Render options.
+ */
+
+
+ RegularShape.prototype.createHitDetectionCanvas_ = function (renderOptions) {
+ this.hitDetectionCanvas_ = this.getImage(1);
+
+ if (this.fill_) {
+ var color = this.fill_.getColor(); // determine if fill is transparent (or pattern or gradient)
+
+ var opacity = 0;
+
+ if (typeof color === 'string') {
+ color = (0, _color.asArray)(color);
+ }
+
+ if (color === null) {
+ opacity = 1;
+ } else if (Array.isArray(color)) {
+ opacity = color.length === 4 ? color[3] : 1;
+ }
+
+ if (opacity === 0) {
+ // if a transparent fill style is set, create an extra hit-detection image
+ // with a default fill style
+ var context = (0, _dom.createCanvasContext2D)(renderOptions.size, renderOptions.size);
+ this.hitDetectionCanvas_ = context.canvas;
+ this.drawHitDetectionCanvas_(renderOptions, context, 0, 0);
+ }
+ }
+ };
+ /**
+ * @private
+ * @param {RenderOptions} renderOptions Render options.
+ * @param {CanvasRenderingContext2D} context The context.
+ * @param {number} x The origin for the symbol (x).
+ * @param {number} y The origin for the symbol (y).
+ */
+
+
+ RegularShape.prototype.drawHitDetectionCanvas_ = function (renderOptions, context, x, y) {
+ // move to (x, y)
+ context.translate(x, y);
+ context.beginPath();
+ var points = this.points_;
+
+ if (points === Infinity) {
+ context.arc(renderOptions.size / 2, renderOptions.size / 2, this.radius_, 0, 2 * Math.PI, true);
+ } else {
+ var radius2 = this.radius2_ !== undefined ? this.radius2_ : this.radius_;
+
+ if (radius2 !== this.radius_) {
+ points = 2 * points;
+ }
+
+ var i = void 0,
+ radiusC = void 0,
+ angle0 = void 0;
+
+ for (i = 0; i <= points; i++) {
+ angle0 = i * 2 * Math.PI / points - Math.PI / 2 + this.angle_;
+ radiusC = i % 2 === 0 ? this.radius_ : radius2;
+ context.lineTo(renderOptions.size / 2 + radiusC * Math.cos(angle0), renderOptions.size / 2 + radiusC * Math.sin(angle0));
+ }
+ }
+
+ context.fillStyle = _canvas.defaultFillStyle;
+ context.fill();
+
+ if (this.stroke_) {
+ context.strokeStyle = renderOptions.strokeStyle;
+ context.lineWidth = renderOptions.strokeWidth;
+
+ if (renderOptions.lineDash) {
+ context.setLineDash(renderOptions.lineDash);
+ context.lineDashOffset = renderOptions.lineDashOffset;
+ }
+
+ context.stroke();
+ }
+
+ context.closePath();
+ };
+
+ return RegularShape;
+}(_Image.default);
+
+var _default = RegularShape;
+exports.default = _default;
+},{"../ImageState.js":"../../../node_modules/ol/ImageState.js","./Image.js":"../../../node_modules/ol/style/Image.js","../color.js":"../../../node_modules/ol/color.js","../colorlike.js":"../../../node_modules/ol/colorlike.js","../dom.js":"../../../node_modules/ol/dom.js","../render/canvas.js":"../../../node_modules/ol/render/canvas.js"}],"../../../node_modules/ol/style/Circle.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _RegularShape = _interopRequireDefault(require("./RegularShape.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module ol/style/Circle
+ */
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+
+/**
+ * @typedef {Object} Options
+ * @property {import("./Fill.js").default} [fill] Fill style.
+ * @property {number} radius Circle radius.
+ * @property {import("./Stroke.js").default} [stroke] Stroke style.
+ * @property {Array<number>} [displacement=[0,0]] displacement
+ */
+
+/**
+ * @classdesc
+ * Set circle style for vector features.
+ * @api
+ */
+var CircleStyle =
+/** @class */
+function (_super) {
+ __extends(CircleStyle, _super);
+ /**
+ * @param {Options=} opt_options Options.
+ */
+
+
+ function CircleStyle(opt_options) {
+ var _this = this;
+
+ var options = opt_options ? opt_options : {};
+ _this = _super.call(this, {
+ points: Infinity,
+ fill: options.fill,
+ radius: options.radius,
+ stroke: options.stroke,
+ displacement: options.displacement !== undefined ? options.displacement : [0, 0]
+ }) || this;
+ return _this;
+ }
+ /**
+ * Clones the style.
+ * @return {CircleStyle} The cloned style.
+ * @api
+ */
+
+
+ CircleStyle.prototype.clone = function () {
+ var style = new CircleStyle({
+ fill: this.getFill() ? this.getFill().clone() : undefined,
+ stroke: this.getStroke() ? this.getStroke().clone() : undefined,
+ radius: this.getRadius(),
+ displacement: this.getDisplacement().slice()
+ });
+ style.setOpacity(this.getOpacity());
+ style.setScale(this.getScale());
+ return style;
+ };
+ /**
+ * Set the circle radius.
+ *
+ * @param {number} radius Circle radius.
+ * @api
+ */
+
+
+ CircleStyle.prototype.setRadius = function (radius) {
+ this.radius_ = radius;
+ this.render();
+ };
+
+ return CircleStyle;
+}(_RegularShape.default);
+
+var _default = CircleStyle;
+exports.default = _default;
+},{"./RegularShape.js":"../../../node_modules/ol/style/RegularShape.js"}],"../../../node_modules/ol/style/Style.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.toFunction = toFunction;
+exports.createDefaultStyle = createDefaultStyle;
+exports.createEditingStyle = createEditingStyle;
+exports.default = void 0;
+
+var _Circle = _interopRequireDefault(require("./Circle.js"));
+
+var _Fill = _interopRequireDefault(require("./Fill.js"));
+
+var _GeometryType = _interopRequireDefault(require("../geom/GeometryType.js"));
+
+var _Stroke = _interopRequireDefault(require("./Stroke.js"));
+
+var _asserts = require("../asserts.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module ol/style/Style
+ */
+
+/**
+ * A function that takes an {@link module:ol/Feature} and a `{number}`
+ * representing the view's resolution. The function should return a
+ * {@link module:ol/style/Style} or an array of them. This way e.g. a
+ * vector layer can be styled. If the function returns `undefined`, the
+ * feature will not be rendered.
+ *
+ * @typedef {function(import("../Feature.js").FeatureLike, number):(Style|Array<Style>|void)} StyleFunction
+ */
+
+/**
+ * A {@link Style}, an array of {@link Style}, or a {@link StyleFunction}.
+ * @typedef {Style|Array<Style>|StyleFunction} StyleLike
+ */
+
+/**
+ * A function that takes an {@link module:ol/Feature} as argument and returns an
+ * {@link module:ol/geom/Geometry} that will be rendered and styled for the feature.
+ *
+ * @typedef {function(import("../Feature.js").FeatureLike):
+ * (import("../geom/Geometry.js").default|import("../render/Feature.js").default|undefined)} GeometryFunction
+ */
+
+/**
+ * Custom renderer function. Takes two arguments:
+ *
+ * 1. The pixel coordinates of the geometry in GeoJSON notation.
+ * 2. The {@link module:ol/render~State} of the layer renderer.
+ *
+ * @typedef {function((import("../coordinate.js").Coordinate|Array<import("../coordinate.js").Coordinate>|Array<Array<import("../coordinate.js").Coordinate>>),import("../render.js").State): void}
+ * RenderFunction
+ */
+
+/**
+ * @typedef {Object} Options
+ * @property {string|import("../geom/Geometry.js").default|GeometryFunction} [geometry] Feature property or geometry
+ * or function returning a geometry to render for this style.
+ * @property {import("./Fill.js").default} [fill] Fill style.
+ * @property {import("./Image.js").default} [image] Image style.
+ * @property {RenderFunction} [renderer] Custom renderer. When configured, `fill`, `stroke` and `image` will be
+ * ignored, and the provided function will be called with each render frame for each geometry.
+ * @property {import("./Stroke.js").default} [stroke] Stroke style.
+ * @property {import("./Text.js").default} [text] Text style.
+ * @property {number} [zIndex] Z index.
+ */
+
+/**
+ * @classdesc
+ * Container for vector feature rendering styles. Any changes made to the style
+ * or its children through `set*()` methods will not take effect until the
+ * feature or layer that uses the style is re-rendered.
+ *
+ * ## Feature styles
+ *
+ * If no style is defined, the following default style is used:
+ * ```js
+ * import {Fill, Stroke, Circle, Style} from 'ol/style';
+ *
+ * var fill = new Fill({
+ * color: 'rgba(255,255,255,0.4)'
+ * });
+ * var stroke = new Stroke({
+ * color: '#3399CC',
+ * width: 1.25
+ * });
+ * var styles = [
+ * new Style({
+ * image: new Circle({
+ * fill: fill,
+ * stroke: stroke,
+ * radius: 5
+ * }),
+ * fill: fill,
+ * stroke: stroke
+ * })
+ * ];
+ * ```
+ *
+ * A separate editing style has the following defaults:
+ * ```js
+ * import {Fill, Stroke, Circle, Style} from 'ol/style';
+ * import GeometryType from 'ol/geom/GeometryType';
+ *
+ * var white = [255, 255, 255, 1];
+ * var blue = [0, 153, 255, 1];
+ * var width = 3;
+ * styles[GeometryType.POLYGON] = [
+ * new Style({
+ * fill: new Fill({
+ * color: [255, 255, 255, 0.5]
+ * })
+ * })
+ * ];
+ * styles[GeometryType.MULTI_POLYGON] =
+ * styles[GeometryType.POLYGON];
+ * styles[GeometryType.LINE_STRING] = [
+ * new Style({
+ * stroke: new Stroke({
+ * color: white,
+ * width: width + 2
+ * })
+ * }),
+ * new Style({
+ * stroke: new Stroke({
+ * color: blue,
+ * width: width
+ * })
+ * })
+ * ];
+ * styles[GeometryType.MULTI_LINE_STRING] =
+ * styles[GeometryType.LINE_STRING];
+ * styles[GeometryType.POINT] = [
+ * new Style({
+ * image: new Circle({
+ * radius: width * 2,
+ * fill: new Fill({
+ * color: blue
+ * }),
+ * stroke: new Stroke({
+ * color: white,
+ * width: width / 2
+ * })
+ * }),
+ * zIndex: Infinity
+ * })
+ * ];
+ * styles[GeometryType.MULTI_POINT] =
+ * styles[GeometryType.POINT];
+ * styles[GeometryType.GEOMETRY_COLLECTION] =
+ * styles[GeometryType.POLYGON].concat(
+ * styles[GeometryType.LINE_STRING],
+ * styles[GeometryType.POINT]
+ * );
+ * ```
+ *
+ * @api
+ */
+var Style =
+/** @class */
+function () {
+ /**
+ * @param {Options=} opt_options Style options.
+ */
+ function Style(opt_options) {
+ var options = opt_options || {};
+ /**
+ * @private
+ * @type {string|import("../geom/Geometry.js").default|GeometryFunction}
+ */
+
+ this.geometry_ = null;
+ /**
+ * @private
+ * @type {!GeometryFunction}
+ */
+
+ this.geometryFunction_ = defaultGeometryFunction;
+
+ if (options.geometry !== undefined) {
+ this.setGeometry(options.geometry);
+ }
+ /**
+ * @private
+ * @type {import("./Fill.js").default}
+ */
+
+
+ this.fill_ = options.fill !== undefined ? options.fill : null;
+ /**
+ * @private
+ * @type {import("./Image.js").default}
+ */
+
+ this.image_ = options.image !== undefined ? options.image : null;
+ /**
+ * @private
+ * @type {RenderFunction|null}
+ */
+
+ this.renderer_ = options.renderer !== undefined ? options.renderer : null;
+ /**
+ * @private
+ * @type {import("./Stroke.js").default}
+ */
+
+ this.stroke_ = options.stroke !== undefined ? options.stroke : null;
+ /**
+ * @private
+ * @type {import("./Text.js").default}
+ */
+
+ this.text_ = options.text !== undefined ? options.text : null;
+ /**
+ * @private
+ * @type {number|undefined}
+ */
+
+ this.zIndex_ = options.zIndex;
+ }
+ /**
+ * Clones the style.
+ * @return {Style} The cloned style.
+ * @api
+ */
+
+
+ Style.prototype.clone = function () {
+ var geometry = this.getGeometry();
+
+ if (geometry && typeof geometry === 'object') {
+ geometry =
+ /** @type {import("../geom/Geometry.js").default} */
+ geometry.clone();
+ }
+
+ return new Style({
+ geometry: geometry,
+ fill: this.getFill() ? this.getFill().clone() : undefined,
+ image: this.getImage() ? this.getImage().clone() : undefined,
+ stroke: this.getStroke() ? this.getStroke().clone() : undefined,
+ text: this.getText() ? this.getText().clone() : undefined,
+ zIndex: this.getZIndex()
+ });
+ };
+ /**
+ * Get the custom renderer function that was configured with
+ * {@link #setRenderer} or the `renderer` constructor option.
+ * @return {RenderFunction|null} Custom renderer function.
+ * @api
+ */
+
+
+ Style.prototype.getRenderer = function () {
+ return this.renderer_;
+ };
+ /**
+ * Sets a custom renderer function for this style. When set, `fill`, `stroke`
+ * and `image` options of the style will be ignored.
+ * @param {RenderFunction|null} renderer Custom renderer function.
+ * @api
+ */
+
+
+ Style.prototype.setRenderer = function (renderer) {
+ this.renderer_ = renderer;
+ };
+ /**
+ * Get the geometry to be rendered.
+ * @return {string|import("../geom/Geometry.js").default|GeometryFunction}
+ * Feature property or geometry or function that returns the geometry that will
+ * be rendered with this style.
+ * @api
+ */
+
+
+ Style.prototype.getGeometry = function () {
+ return this.geometry_;
+ };
+ /**
+ * Get the function used to generate a geometry for rendering.
+ * @return {!GeometryFunction} Function that is called with a feature
+ * and returns the geometry to render instead of the feature's geometry.
+ * @api
+ */
+
+
+ Style.prototype.getGeometryFunction = function () {
+ return this.geometryFunction_;
+ };
+ /**
+ * Get the fill style.
+ * @return {import("./Fill.js").default} Fill style.
+ * @api
+ */
+
+
+ Style.prototype.getFill = function () {
+ return this.fill_;
+ };
+ /**
+ * Set the fill style.
+ * @param {import("./Fill.js").default} fill Fill style.
+ * @api
+ */
+
+
+ Style.prototype.setFill = function (fill) {
+ this.fill_ = fill;
+ };
+ /**
+ * Get the image style.
+ * @return {import("./Image.js").default} Image style.
+ * @api
+ */
+
+
+ Style.prototype.getImage = function () {
+ return this.image_;
+ };
+ /**
+ * Set the image style.
+ * @param {import("./Image.js").default} image Image style.
+ * @api
+ */
+
+
+ Style.prototype.setImage = function (image) {
+ this.image_ = image;
+ };
+ /**
+ * Get the stroke style.
+ * @return {import("./Stroke.js").default} Stroke style.
+ * @api
+ */
+
+
+ Style.prototype.getStroke = function () {
+ return this.stroke_;
+ };
+ /**
+ * Set the stroke style.
+ * @param {import("./Stroke.js").default} stroke Stroke style.
+ * @api
+ */
+
+
+ Style.prototype.setStroke = function (stroke) {
+ this.stroke_ = stroke;
+ };
+ /**
+ * Get the text style.
+ * @return {import("./Text.js").default} Text style.
+ * @api
+ */
+
+
+ Style.prototype.getText = function () {
+ return this.text_;
+ };
+ /**
+ * Set the text style.
+ * @param {import("./Text.js").default} text Text style.
+ * @api
+ */
+
+
+ Style.prototype.setText = function (text) {
+ this.text_ = text;
+ };
+ /**
+ * Get the z-index for the style.
+ * @return {number|undefined} ZIndex.
+ * @api
+ */
+
+
+ Style.prototype.getZIndex = function () {
+ return this.zIndex_;
+ };
+ /**
+ * Set a geometry that is rendered instead of the feature's geometry.
+ *
+ * @param {string|import("../geom/Geometry.js").default|GeometryFunction} geometry
+ * Feature property or geometry or function returning a geometry to render
+ * for this style.
+ * @api
+ */
+
+
+ Style.prototype.setGeometry = function (geometry) {
+ if (typeof geometry === 'function') {
+ this.geometryFunction_ = geometry;
+ } else if (typeof geometry === 'string') {
+ this.geometryFunction_ = function (feature) {
+ return (
+ /** @type {import("../geom/Geometry.js").default} */
+ feature.get(geometry)
+ );
+ };
+ } else if (!geometry) {
+ this.geometryFunction_ = defaultGeometryFunction;
+ } else if (geometry !== undefined) {
+ this.geometryFunction_ = function () {
+ return (
+ /** @type {import("../geom/Geometry.js").default} */
+ geometry
+ );
+ };
+ }
+
+ this.geometry_ = geometry;
+ };
+ /**
+ * Set the z-index.
+ *
+ * @param {number|undefined} zIndex ZIndex.
+ * @api
+ */
+
+
+ Style.prototype.setZIndex = function (zIndex) {
+ this.zIndex_ = zIndex;
+ };
+
+ return Style;
+}();
+/**
+ * Convert the provided object into a style function. Functions passed through
+ * unchanged. Arrays of Style or single style objects wrapped in a
+ * new style function.
+ * @param {StyleFunction|Array<Style>|Style} obj
+ * A style function, a single style, or an array of styles.
+ * @return {StyleFunction} A style function.
+ */
+
+
+function toFunction(obj) {
+ var styleFunction;
+
+ if (typeof obj === 'function') {
+ styleFunction = obj;
+ } else {
+ /**
+ * @type {Array<Style>}
+ */
+ var styles_1;
+
+ if (Array.isArray(obj)) {
+ styles_1 = obj;
+ } else {
+ (0, _asserts.assert)(typeof
+ /** @type {?} */
+ obj.getZIndex === 'function', 41); // Expected an `Style` or an array of `Style`
+
+ var style =
+ /** @type {Style} */
+ obj;
+ styles_1 = [style];
+ }
+
+ styleFunction = function () {
+ return styles_1;
+ };
+ }
+
+ return styleFunction;
+}
+/**
+ * @type {Array<Style>}
+ */
+
+
+var defaultStyles = null;
+/**
+ * @param {import("../Feature.js").FeatureLike} feature Feature.
+ * @param {number} resolution Resolution.
+ * @return {Array<Style>} Style.
+ */
+
+function createDefaultStyle(feature, resolution) {
+ // We don't use an immediately-invoked function
+ // and a closure so we don't get an error at script evaluation time in
+ // browsers that do not support Canvas. (import("./Circle.js").CircleStyle does
+ // canvas.getContext('2d') at construction time, which will cause an.error
+ // in such browsers.)
+ if (!defaultStyles) {
+ var fill = new _Fill.default({
+ color: 'rgba(255,255,255,0.4)'
+ });
+ var stroke = new _Stroke.default({
+ color: '#3399CC',
+ width: 1.25
+ });
+ defaultStyles = [new Style({
+ image: new _Circle.default({
+ fill: fill,
+ stroke: stroke,
+ radius: 5
+ }),
+ fill: fill,
+ stroke: stroke
+ })];
+ }
+
+ return defaultStyles;
+}
+/**
+ * Default styles for editing features.
+ * @return {Object<import("../geom/GeometryType.js").default, Array<Style>>} Styles
+ */
+
+
+function createEditingStyle() {
+ /** @type {Object<import("../geom/GeometryType.js").default, Array<Style>>} */
+ var styles = {};
+ var white = [255, 255, 255, 1];
+ var blue = [0, 153, 255, 1];
+ var width = 3;
+ styles[_GeometryType.default.POLYGON] = [new Style({
+ fill: new _Fill.default({
+ color: [255, 255, 255, 0.5]
+ })
+ })];
+ styles[_GeometryType.default.MULTI_POLYGON] = styles[_GeometryType.default.POLYGON];
+ styles[_GeometryType.default.LINE_STRING] = [new Style({
+ stroke: new _Stroke.default({
+ color: white,
+ width: width + 2
+ })
+ }), new Style({
+ stroke: new _Stroke.default({
+ color: blue,
+ width: width
+ })
+ })];
+ styles[_GeometryType.default.MULTI_LINE_STRING] = styles[_GeometryType.default.LINE_STRING];
+ styles[_GeometryType.default.CIRCLE] = styles[_GeometryType.default.POLYGON].concat(styles[_GeometryType.default.LINE_STRING]);
+ styles[_GeometryType.default.POINT] = [new Style({
+ image: new _Circle.default({
+ radius: width * 2,
+ fill: new _Fill.default({
+ color: blue
+ }),
+ stroke: new _Stroke.default({
+ color: white,
+ width: width / 2
+ })
+ }),
+ zIndex: Infinity
+ })];
+ styles[_GeometryType.default.MULTI_POINT] = styles[_GeometryType.default.POINT];
+ styles[_GeometryType.default.GEOMETRY_COLLECTION] = styles[_GeometryType.default.POLYGON].concat(styles[_GeometryType.default.LINE_STRING], styles[_GeometryType.default.POINT]);
+ return styles;
+}
+/**
+ * Function that is called with a feature and returns its default geometry.
+ * @param {import("../Feature.js").FeatureLike} feature Feature to get the geometry for.
+ * @return {import("../geom/Geometry.js").default|import("../render/Feature.js").default|undefined} Geometry to render.
+ */
+
+
+function defaultGeometryFunction(feature) {
+ return feature.getGeometry();
+}
+
+var _default = Style;
+exports.default = _default;
+},{"./Circle.js":"../../../node_modules/ol/style/Circle.js","./Fill.js":"../../../node_modules/ol/style/Fill.js","../geom/GeometryType.js":"../../../node_modules/ol/geom/GeometryType.js","./Stroke.js":"../../../node_modules/ol/style/Stroke.js","../asserts.js":"../../../node_modules/ol/asserts.js"}],"../../../node_modules/ol/style/TextPlacement.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+/**
+ * @module ol/style/TextPlacement
+ */
+
+/**
+ * Text placement. One of `'point'`, `'line'`. Default is `'point'`. Note that
+ * `'line'` requires the underlying geometry to be a {@link module:ol/geom/LineString~LineString},
+ * {@link module:ol/geom/Polygon~Polygon}, {@link module:ol/geom/MultiLineString~MultiLineString} or
+ * {@link module:ol/geom/MultiPolygon~MultiPolygon}.
+ * @enum {string}
+ */
+var _default = {
+ POINT: 'point',
+ LINE: 'line'
+};
+exports.default = _default;
+},{}],"../../../node_modules/ol/style/Text.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Fill = _interopRequireDefault(require("./Fill.js"));
+
+var _TextPlacement = _interopRequireDefault(require("./TextPlacement.js"));
+
+var _size = require("../size.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module ol/style/Text
+ */
+
+/**
+ * The default fill color to use if no fill was set at construction time; a
+ * blackish `#333`.
+ *
+ * @const {string}
+ */
+var DEFAULT_FILL_COLOR = '#333';
+/**
+ * @typedef {Object} Options
+ * @property {string} [font] Font style as CSS 'font' value, see:
+ * https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/font. Default is '10px sans-serif'
+ * @property {number} [maxAngle=Math.PI/4] When `placement` is set to `'line'`, allow a maximum angle between adjacent characters.
+ * The expected value is in radians, and the default is 45° (`Math.PI / 4`).
+ * @property {number} [offsetX=0] Horizontal text offset in pixels. A positive will shift the text right.
+ * @property {number} [offsetY=0] Vertical text offset in pixels. A positive will shift the text down.
+ * @property {boolean} [overflow=false] For polygon labels or when `placement` is set to `'line'`, allow text to exceed
+ * the width of the polygon at the label position or the length of the path that it follows.
+ * @property {import("./TextPlacement.js").default|string} [placement='point'] Text placement.
+ * @property {number|import("../size.js").Size} [scale] Scale.
+ * @property {boolean} [rotateWithView=false] Whether to rotate the text with the view.
+ * @property {number} [rotation=0] Rotation in radians (positive rotation clockwise).
+ * @property {string} [text] Text content.
+ * @property {string} [textAlign] Text alignment. Possible values: 'left', 'right', 'center', 'end' or 'start'.
+ * Default is 'center' for `placement: 'point'`. For `placement: 'line'`, the default is to let the renderer choose a
+ * placement where `maxAngle` is not exceeded.
+ * @property {string} [textBaseline='middle'] Text base line. Possible values: 'bottom', 'top', 'middle', 'alphabetic',
+ * 'hanging', 'ideographic'.
+ * @property {import("./Fill.js").default} [fill] Fill style. If none is provided, we'll use a dark fill-style (#333).
+ * @property {import("./Stroke.js").default} [stroke] Stroke style.
+ * @property {import("./Fill.js").default} [backgroundFill] Fill style for the text background when `placement` is
+ * `'point'`. Default is no fill.
+ * @property {import("./Stroke.js").default} [backgroundStroke] Stroke style for the text background when `placement`
+ * is `'point'`. Default is no stroke.
+ * @property {Array<number>} [padding=[0, 0, 0, 0]] Padding in pixels around the text for decluttering and background. The order of
+ * values in the array is `[top, right, bottom, left]`.
+ */
+
+/**
+ * @classdesc
+ * Set text style for vector features.
+ * @api
+ */
+
+var Text =
+/** @class */
+function () {
+ /**
+ * @param {Options=} opt_options Options.
+ */
+ function Text(opt_options) {
+ var options = opt_options || {};
+ /**
+ * @private
+ * @type {string|undefined}
+ */
+
+ this.font_ = options.font;
+ /**
+ * @private
+ * @type {number|undefined}
+ */
+
+ this.rotation_ = options.rotation;
+ /**
+ * @private
+ * @type {boolean|undefined}
+ */
+
+ this.rotateWithView_ = options.rotateWithView;
+ /**
+ * @private
+ * @type {number|import("../size.js").Size|undefined}
+ */
+
+ this.scale_ = options.scale;
+ /**
+ * @private
+ * @type {import("../size.js").Size}
+ */
+
+ this.scaleArray_ = (0, _size.toSize)(options.scale !== undefined ? options.scale : 1);
+ /**
+ * @private
+ * @type {string|undefined}
+ */
+
+ this.text_ = options.text;
+ /**
+ * @private
+ * @type {string|undefined}
+ */
+
+ this.textAlign_ = options.textAlign;
+ /**
+ * @private
+ * @type {string|undefined}
+ */
+
+ this.textBaseline_ = options.textBaseline;
+ /**
+ * @private
+ * @type {import("./Fill.js").default}
+ */
+
+ this.fill_ = options.fill !== undefined ? options.fill : new _Fill.default({
+ color: DEFAULT_FILL_COLOR
+ });
+ /**
+ * @private
+ * @type {number}
+ */
+
+ this.maxAngle_ = options.maxAngle !== undefined ? options.maxAngle : Math.PI / 4;
+ /**
+ * @private
+ * @type {import("./TextPlacement.js").default|string}
+ */
+
+ this.placement_ = options.placement !== undefined ? options.placement : _TextPlacement.default.POINT;
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ this.overflow_ = !!options.overflow;
+ /**
+ * @private
+ * @type {import("./Stroke.js").default}
+ */
+
+ this.stroke_ = options.stroke !== undefined ? options.stroke : null;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ this.offsetX_ = options.offsetX !== undefined ? options.offsetX : 0;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ this.offsetY_ = options.offsetY !== undefined ? options.offsetY : 0;
+ /**
+ * @private
+ * @type {import("./Fill.js").default}
+ */
+
+ this.backgroundFill_ = options.backgroundFill ? options.backgroundFill : null;
+ /**
+ * @private
+ * @type {import("./Stroke.js").default}
+ */
+
+ this.backgroundStroke_ = options.backgroundStroke ? options.backgroundStroke : null;
+ /**
+ * @private
+ * @type {Array<number>}
+ */
+
+ this.padding_ = options.padding === undefined ? null : options.padding;
+ }
+ /**
+ * Clones the style.
+ * @return {Text} The cloned style.
+ * @api
+ */
+
+
+ Text.prototype.clone = function () {
+ var scale = this.getScale();
+ return new Text({
+ font: this.getFont(),
+ placement: this.getPlacement(),
+ maxAngle: this.getMaxAngle(),
+ overflow: this.getOverflow(),
+ rotation: this.getRotation(),
+ rotateWithView: this.getRotateWithView(),
+ scale: Array.isArray(scale) ? scale.slice() : scale,
+ text: this.getText(),
+ textAlign: this.getTextAlign(),
+ textBaseline: this.getTextBaseline(),
+ fill: this.getFill() ? this.getFill().clone() : undefined,
+ stroke: this.getStroke() ? this.getStroke().clone() : undefined,
+ offsetX: this.getOffsetX(),
+ offsetY: this.getOffsetY(),
+ backgroundFill: this.getBackgroundFill() ? this.getBackgroundFill().clone() : undefined,
+ backgroundStroke: this.getBackgroundStroke() ? this.getBackgroundStroke().clone() : undefined,
+ padding: this.getPadding()
+ });
+ };
+ /**
+ * Get the `overflow` configuration.
+ * @return {boolean} Let text overflow the length of the path they follow.
+ * @api
+ */
+
+
+ Text.prototype.getOverflow = function () {
+ return this.overflow_;
+ };
+ /**
+ * Get the font name.
+ * @return {string|undefined} Font.
+ * @api
+ */
+
+
+ Text.prototype.getFont = function () {
+ return this.font_;
+ };
+ /**
+ * Get the maximum angle between adjacent characters.
+ * @return {number} Angle in radians.
+ * @api
+ */
+
+
+ Text.prototype.getMaxAngle = function () {
+ return this.maxAngle_;
+ };
+ /**
+ * Get the label placement.
+ * @return {import("./TextPlacement.js").default|string} Text placement.
+ * @api
+ */
+
+
+ Text.prototype.getPlacement = function () {
+ return this.placement_;
+ };
+ /**
+ * Get the x-offset for the text.
+ * @return {number} Horizontal text offset.
+ * @api
+ */
+
+
+ Text.prototype.getOffsetX = function () {
+ return this.offsetX_;
+ };
+ /**
+ * Get the y-offset for the text.
+ * @return {number} Vertical text offset.
+ * @api
+ */
+
+
+ Text.prototype.getOffsetY = function () {
+ return this.offsetY_;
+ };
+ /**
+ * Get the fill style for the text.
+ * @return {import("./Fill.js").default} Fill style.
+ * @api
+ */
+
+
+ Text.prototype.getFill = function () {
+ return this.fill_;
+ };
+ /**
+ * Determine whether the text rotates with the map.
+ * @return {boolean|undefined} Rotate with map.
+ * @api
+ */
+
+
+ Text.prototype.getRotateWithView = function () {
+ return this.rotateWithView_;
+ };
+ /**
+ * Get the text rotation.
+ * @return {number|undefined} Rotation.
+ * @api
+ */
+
+
+ Text.prototype.getRotation = function () {
+ return this.rotation_;
+ };
+ /**
+ * Get the text scale.
+ * @return {number|import("../size.js").Size|undefined} Scale.
+ * @api
+ */
+
+
+ Text.prototype.getScale = function () {
+ return this.scale_;
+ };
+ /**
+ * Get the symbolizer scale array.
+ * @return {import("../size.js").Size} Scale array.
+ */
+
+
+ Text.prototype.getScaleArray = function () {
+ return this.scaleArray_;
+ };
+ /**
+ * Get the stroke style for the text.
+ * @return {import("./Stroke.js").default} Stroke style.
+ * @api
+ */
+
+
+ Text.prototype.getStroke = function () {
+ return this.stroke_;
+ };
+ /**
+ * Get the text to be rendered.
+ * @return {string|undefined} Text.
+ * @api
+ */
+
+
+ Text.prototype.getText = function () {
+ return this.text_;
+ };
+ /**
+ * Get the text alignment.
+ * @return {string|undefined} Text align.
+ * @api
+ */
+
+
+ Text.prototype.getTextAlign = function () {
+ return this.textAlign_;
+ };
+ /**
+ * Get the text baseline.
+ * @return {string|undefined} Text baseline.
+ * @api
+ */
+
+
+ Text.prototype.getTextBaseline = function () {
+ return this.textBaseline_;
+ };
+ /**
+ * Get the background fill style for the text.
+ * @return {import("./Fill.js").default} Fill style.
+ * @api
+ */
+
+
+ Text.prototype.getBackgroundFill = function () {
+ return this.backgroundFill_;
+ };
+ /**
+ * Get the background stroke style for the text.
+ * @return {import("./Stroke.js").default} Stroke style.
+ * @api
+ */
+
+
+ Text.prototype.getBackgroundStroke = function () {
+ return this.backgroundStroke_;
+ };
+ /**
+ * Get the padding for the text.
+ * @return {Array<number>} Padding.
+ * @api
+ */
+
+
+ Text.prototype.getPadding = function () {
+ return this.padding_;
+ };
+ /**
+ * Set the `overflow` property.
+ *
+ * @param {boolean} overflow Let text overflow the path that it follows.
+ * @api
+ */
+
+
+ Text.prototype.setOverflow = function (overflow) {
+ this.overflow_ = overflow;
+ };
+ /**
+ * Set the font.
+ *
+ * @param {string|undefined} font Font.
+ * @api
+ */
+
+
+ Text.prototype.setFont = function (font) {
+ this.font_ = font;
+ };
+ /**
+ * Set the maximum angle between adjacent characters.
+ *
+ * @param {number} maxAngle Angle in radians.
+ * @api
+ */
+
+
+ Text.prototype.setMaxAngle = function (maxAngle) {
+ this.maxAngle_ = maxAngle;
+ };
+ /**
+ * Set the x offset.
+ *
+ * @param {number} offsetX Horizontal text offset.
+ * @api
+ */
+
+
+ Text.prototype.setOffsetX = function (offsetX) {
+ this.offsetX_ = offsetX;
+ };
+ /**
+ * Set the y offset.
+ *
+ * @param {number} offsetY Vertical text offset.
+ * @api
+ */
+
+
+ Text.prototype.setOffsetY = function (offsetY) {
+ this.offsetY_ = offsetY;
+ };
+ /**
+ * Set the text placement.
+ *
+ * @param {import("./TextPlacement.js").default|string} placement Placement.
+ * @api
+ */
+
+
+ Text.prototype.setPlacement = function (placement) {
+ this.placement_ = placement;
+ };
+ /**
+ * Set whether to rotate the text with the view.
+ *
+ * @param {boolean} rotateWithView Rotate with map.
+ * @api
+ */
+
+
+ Text.prototype.setRotateWithView = function (rotateWithView) {
+ this.rotateWithView_ = rotateWithView;
+ };
+ /**
+ * Set the fill.
+ *
+ * @param {import("./Fill.js").default} fill Fill style.
+ * @api
+ */
+
+
+ Text.prototype.setFill = function (fill) {
+ this.fill_ = fill;
+ };
+ /**
+ * Set the rotation.
+ *
+ * @param {number|undefined} rotation Rotation.
+ * @api
+ */
+
+
+ Text.prototype.setRotation = function (rotation) {
+ this.rotation_ = rotation;
+ };
+ /**
+ * Set the scale.
+ *
+ * @param {number|import("../size.js").Size|undefined} scale Scale.
+ * @api
+ */
+
+
+ Text.prototype.setScale = function (scale) {
+ this.scale_ = scale;
+ this.scaleArray_ = (0, _size.toSize)(scale !== undefined ? scale : 1);
+ };
+ /**
+ * Set the stroke.
+ *
+ * @param {import("./Stroke.js").default} stroke Stroke style.
+ * @api
+ */
+
+
+ Text.prototype.setStroke = function (stroke) {
+ this.stroke_ = stroke;
+ };
+ /**
+ * Set the text.
+ *
+ * @param {string|undefined} text Text.
+ * @api
+ */
+
+
+ Text.prototype.setText = function (text) {
+ this.text_ = text;
+ };
+ /**
+ * Set the text alignment.
+ *
+ * @param {string|undefined} textAlign Text align.
+ * @api
+ */
+
+
+ Text.prototype.setTextAlign = function (textAlign) {
+ this.textAlign_ = textAlign;
+ };
+ /**
+ * Set the text baseline.
+ *
+ * @param {string|undefined} textBaseline Text baseline.
+ * @api
+ */
+
+
+ Text.prototype.setTextBaseline = function (textBaseline) {
+ this.textBaseline_ = textBaseline;
+ };
+ /**
+ * Set the background fill.
+ *
+ * @param {import("./Fill.js").default} fill Fill style.
+ * @api
+ */
+
+
+ Text.prototype.setBackgroundFill = function (fill) {
+ this.backgroundFill_ = fill;
+ };
+ /**
+ * Set the background stroke.
+ *
+ * @param {import("./Stroke.js").default} stroke Stroke style.
+ * @api
+ */
+
+
+ Text.prototype.setBackgroundStroke = function (stroke) {
+ this.backgroundStroke_ = stroke;
+ };
+ /**
+ * Set the padding (`[top, right, bottom, left]`).
+ *
+ * @param {!Array<number>} padding Padding.
+ * @api
+ */
+
+
+ Text.prototype.setPadding = function (padding) {
+ this.padding_ = padding;
+ };
+
+ return Text;
+}();
+
+var _default = Text;
+exports.default = _default;
+},{"./Fill.js":"../../../node_modules/ol/style/Fill.js","./TextPlacement.js":"../../../node_modules/ol/style/TextPlacement.js","../size.js":"../../../node_modules/ol/size.js"}],"../../../node_modules/ol/layer/Property.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+/**
+ * @module ol/layer/Property
+ */
+
+/**
+ * @enum {string}
+ */
+var _default = {
+ OPACITY: 'opacity',
+ VISIBLE: 'visible',
+ EXTENT: 'extent',
+ Z_INDEX: 'zIndex',
+ MAX_RESOLUTION: 'maxResolution',
+ MIN_RESOLUTION: 'minResolution',
+ MAX_ZOOM: 'maxZoom',
+ MIN_ZOOM: 'minZoom',
+ SOURCE: 'source'
+};
+exports.default = _default;
+},{}],"../../../node_modules/ol/layer/Base.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Object = _interopRequireDefault(require("../Object.js"));
+
+var _Property = _interopRequireDefault(require("./Property.js"));
+
+var _util = require("../util.js");
+
+var _asserts = require("../asserts.js");
+
+var _obj = require("../obj.js");
+
+var _math = require("../math.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/layer/Base
+ */
+
+
+/**
+ * @typedef {Object} Options
+ * @property {string} [className='ol-layer'] A CSS class name to set to the layer element.
+ * @property {number} [opacity=1] Opacity (0, 1).
+ * @property {boolean} [visible=true] Visibility.
+ * @property {import("../extent.js").Extent} [extent] The bounding extent for layer rendering. The layer will not be
+ * rendered outside of this extent.
+ * @property {number} [zIndex] The z-index for layer rendering. At rendering time, the layers
+ * will be ordered, first by Z-index and then by position. When `undefined`, a `zIndex` of 0 is assumed
+ * for layers that are added to the map's `layers` collection, or `Infinity` when the layer's `setMap()`
+ * method was used.
+ * @property {number} [minResolution] The minimum resolution (inclusive) at which this layer will be
+ * visible.
+ * @property {number} [maxResolution] The maximum resolution (exclusive) below which this layer will
+ * be visible.
+ * @property {number} [minZoom] The minimum view zoom level (exclusive) above which this layer will be
+ * visible.
+ * @property {number} [maxZoom] The maximum view zoom level (inclusive) at which this layer will
+ * be visible.
+ */
+
+/**
+ * @classdesc
+ * Abstract base class; normally only used for creating subclasses and not
+ * instantiated in apps.
+ * Note that with {@link module:ol/layer/Base} and all its subclasses, any property set in
+ * the options is set as a {@link module:ol/Object} property on the layer object, so
+ * is observable, and has get/set accessors.
+ *
+ * @api
+ */
+var BaseLayer =
+/** @class */
+function (_super) {
+ __extends(BaseLayer, _super);
+ /**
+ * @param {Options} options Layer options.
+ */
+
+
+ function BaseLayer(options) {
+ var _this = _super.call(this) || this;
+ /**
+ * @type {Object<string, *>}
+ */
+
+
+ var properties = (0, _obj.assign)({}, options);
+ properties[_Property.default.OPACITY] = options.opacity !== undefined ? options.opacity : 1;
+ (0, _asserts.assert)(typeof properties[_Property.default.OPACITY] === 'number', 64); // Layer opacity must be a number
+
+ properties[_Property.default.VISIBLE] = options.visible !== undefined ? options.visible : true;
+ properties[_Property.default.Z_INDEX] = options.zIndex;
+ properties[_Property.default.MAX_RESOLUTION] = options.maxResolution !== undefined ? options.maxResolution : Infinity;
+ properties[_Property.default.MIN_RESOLUTION] = options.minResolution !== undefined ? options.minResolution : 0;
+ properties[_Property.default.MIN_ZOOM] = options.minZoom !== undefined ? options.minZoom : -Infinity;
+ properties[_Property.default.MAX_ZOOM] = options.maxZoom !== undefined ? options.maxZoom : Infinity;
+ /**
+ * @type {string}
+ * @private
+ */
+
+ _this.className_ = properties.className !== undefined ? options.className : 'ol-layer';
+ delete properties.className;
+
+ _this.setProperties(properties);
+ /**
+ * @type {import("./Layer.js").State}
+ * @private
+ */
+
+
+ _this.state_ = null;
+ return _this;
+ }
+ /**
+ * @return {string} CSS class name.
+ */
+
+
+ BaseLayer.prototype.getClassName = function () {
+ return this.className_;
+ };
+ /**
+ * This method is not meant to be called by layers or layer renderers because the state
+ * is incorrect if the layer is included in a layer group.
+ *
+ * @param {boolean=} opt_managed Layer is managed.
+ * @return {import("./Layer.js").State} Layer state.
+ */
+
+
+ BaseLayer.prototype.getLayerState = function (opt_managed) {
+ /** @type {import("./Layer.js").State} */
+ var state = this.state_ ||
+ /** @type {?} */
+ {
+ layer: this,
+ managed: opt_managed === undefined ? true : opt_managed
+ };
+ var zIndex = this.getZIndex();
+ state.opacity = (0, _math.clamp)(Math.round(this.getOpacity() * 100) / 100, 0, 1);
+ state.sourceState = this.getSourceState();
+ state.visible = this.getVisible();
+ state.extent = this.getExtent();
+ state.zIndex = zIndex !== undefined ? zIndex : state.managed === false ? Infinity : 0;
+ state.maxResolution = this.getMaxResolution();
+ state.minResolution = Math.max(this.getMinResolution(), 0);
+ state.minZoom = this.getMinZoom();
+ state.maxZoom = this.getMaxZoom();
+ this.state_ = state;
+ return state;
+ };
+ /**
+ * @abstract
+ * @param {Array<import("./Layer.js").default>=} opt_array Array of layers (to be
+ * modified in place).
+ * @return {Array<import("./Layer.js").default>} Array of layers.
+ */
+
+
+ BaseLayer.prototype.getLayersArray = function (opt_array) {
+ return (0, _util.abstract)();
+ };
+ /**
+ * @abstract
+ * @param {Array<import("./Layer.js").State>=} opt_states Optional list of layer
+ * states (to be modified in place).
+ * @return {Array<import("./Layer.js").State>} List of layer states.
+ */
+
+
+ BaseLayer.prototype.getLayerStatesArray = function (opt_states) {
+ return (0, _util.abstract)();
+ };
+ /**
+ * Return the {@link module:ol/extent~Extent extent} of the layer or `undefined` if it
+ * will be visible regardless of extent.
+ * @return {import("../extent.js").Extent|undefined} The layer extent.
+ * @observable
+ * @api
+ */
+
+
+ BaseLayer.prototype.getExtent = function () {
+ return (
+ /** @type {import("../extent.js").Extent|undefined} */
+ this.get(_Property.default.EXTENT)
+ );
+ };
+ /**
+ * Return the maximum resolution of the layer.
+ * @return {number} The maximum resolution of the layer.
+ * @observable
+ * @api
+ */
+
+
+ BaseLayer.prototype.getMaxResolution = function () {
+ return (
+ /** @type {number} */
+ this.get(_Property.default.MAX_RESOLUTION)
+ );
+ };
+ /**
+ * Return the minimum resolution of the layer.
+ * @return {number} The minimum resolution of the layer.
+ * @observable
+ * @api
+ */
+
+
+ BaseLayer.prototype.getMinResolution = function () {
+ return (
+ /** @type {number} */
+ this.get(_Property.default.MIN_RESOLUTION)
+ );
+ };
+ /**
+ * Return the minimum zoom level of the layer.
+ * @return {number} The minimum zoom level of the layer.
+ * @observable
+ * @api
+ */
+
+
+ BaseLayer.prototype.getMinZoom = function () {
+ return (
+ /** @type {number} */
+ this.get(_Property.default.MIN_ZOOM)
+ );
+ };
+ /**
+ * Return the maximum zoom level of the layer.
+ * @return {number} The maximum zoom level of the layer.
+ * @observable
+ * @api
+ */
+
+
+ BaseLayer.prototype.getMaxZoom = function () {
+ return (
+ /** @type {number} */
+ this.get(_Property.default.MAX_ZOOM)
+ );
+ };
+ /**
+ * Return the opacity of the layer (between 0 and 1).
+ * @return {number} The opacity of the layer.
+ * @observable
+ * @api
+ */
+
+
+ BaseLayer.prototype.getOpacity = function () {
+ return (
+ /** @type {number} */
+ this.get(_Property.default.OPACITY)
+ );
+ };
+ /**
+ * @abstract
+ * @return {import("../source/State.js").default} Source state.
+ */
+
+
+ BaseLayer.prototype.getSourceState = function () {
+ return (0, _util.abstract)();
+ };
+ /**
+ * Return the visibility of the layer (`true` or `false`).
+ * @return {boolean} The visibility of the layer.
+ * @observable
+ * @api
+ */
+
+
+ BaseLayer.prototype.getVisible = function () {
+ return (
+ /** @type {boolean} */
+ this.get(_Property.default.VISIBLE)
+ );
+ };
+ /**
+ * Return the Z-index of the layer, which is used to order layers before
+ * rendering. The default Z-index is 0.
+ * @return {number} The Z-index of the layer.
+ * @observable
+ * @api
+ */
+
+
+ BaseLayer.prototype.getZIndex = function () {
+ return (
+ /** @type {number} */
+ this.get(_Property.default.Z_INDEX)
+ );
+ };
+ /**
+ * Set the extent at which the layer is visible. If `undefined`, the layer
+ * will be visible at all extents.
+ * @param {import("../extent.js").Extent|undefined} extent The extent of the layer.
+ * @observable
+ * @api
+ */
+
+
+ BaseLayer.prototype.setExtent = function (extent) {
+ this.set(_Property.default.EXTENT, extent);
+ };
+ /**
+ * Set the maximum resolution at which the layer is visible.
+ * @param {number} maxResolution The maximum resolution of the layer.
+ * @observable
+ * @api
+ */
+
+
+ BaseLayer.prototype.setMaxResolution = function (maxResolution) {
+ this.set(_Property.default.MAX_RESOLUTION, maxResolution);
+ };
+ /**
+ * Set the minimum resolution at which the layer is visible.
+ * @param {number} minResolution The minimum resolution of the layer.
+ * @observable
+ * @api
+ */
+
+
+ BaseLayer.prototype.setMinResolution = function (minResolution) {
+ this.set(_Property.default.MIN_RESOLUTION, minResolution);
+ };
+ /**
+ * Set the maximum zoom (exclusive) at which the layer is visible.
+ * Note that the zoom levels for layer visibility are based on the
+ * view zoom level, which may be different from a tile source zoom level.
+ * @param {number} maxZoom The maximum zoom of the layer.
+ * @observable
+ * @api
+ */
+
+
+ BaseLayer.prototype.setMaxZoom = function (maxZoom) {
+ this.set(_Property.default.MAX_ZOOM, maxZoom);
+ };
+ /**
+ * Set the minimum zoom (inclusive) at which the layer is visible.
+ * Note that the zoom levels for layer visibility are based on the
+ * view zoom level, which may be different from a tile source zoom level.
+ * @param {number} minZoom The minimum zoom of the layer.
+ * @observable
+ * @api
+ */
+
+
+ BaseLayer.prototype.setMinZoom = function (minZoom) {
+ this.set(_Property.default.MIN_ZOOM, minZoom);
+ };
+ /**
+ * Set the opacity of the layer, allowed values range from 0 to 1.
+ * @param {number} opacity The opacity of the layer.
+ * @observable
+ * @api
+ */
+
+
+ BaseLayer.prototype.setOpacity = function (opacity) {
+ (0, _asserts.assert)(typeof opacity === 'number', 64); // Layer opacity must be a number
+
+ this.set(_Property.default.OPACITY, opacity);
+ };
+ /**
+ * Set the visibility of the layer (`true` or `false`).
+ * @param {boolean} visible The visibility of the layer.
+ * @observable
+ * @api
+ */
+
+
+ BaseLayer.prototype.setVisible = function (visible) {
+ this.set(_Property.default.VISIBLE, visible);
+ };
+ /**
+ * Set Z-index of the layer, which is used to order layers before rendering.
+ * The default Z-index is 0.
+ * @param {number} zindex The z-index of the layer.
+ * @observable
+ * @api
+ */
+
+
+ BaseLayer.prototype.setZIndex = function (zindex) {
+ this.set(_Property.default.Z_INDEX, zindex);
+ };
+ /**
+ * Clean up.
+ */
+
+
+ BaseLayer.prototype.disposeInternal = function () {
+ if (this.state_) {
+ this.state_.layer = null;
+ this.state_ = null;
+ }
+
+ _super.prototype.disposeInternal.call(this);
+ };
+
+ return BaseLayer;
+}(_Object.default);
+
+var _default = BaseLayer;
+exports.default = _default;
+},{"../Object.js":"../../../node_modules/ol/Object.js","./Property.js":"../../../node_modules/ol/layer/Property.js","../util.js":"../../../node_modules/ol/util.js","../asserts.js":"../../../node_modules/ol/asserts.js","../obj.js":"../../../node_modules/ol/obj.js","../math.js":"../../../node_modules/ol/math.js"}],"../../../node_modules/ol/source/State.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+/**
+ * @module ol/source/State
+ */
+
+/**
+ * @enum {string}
+ * State of the source, one of 'undefined', 'loading', 'ready' or 'error'.
+ */
+var _default = {
+ UNDEFINED: 'undefined',
+ LOADING: 'loading',
+ READY: 'ready',
+ ERROR: 'error'
+};
+exports.default = _default;
+},{}],"../../../node_modules/ol/layer/Layer.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.inView = inView;
+exports.default = void 0;
+
+var _Base = _interopRequireDefault(require("./Base.js"));
+
+var _EventType = _interopRequireDefault(require("../events/EventType.js"));
+
+var _Property = _interopRequireDefault(require("./Property.js"));
+
+var _EventType2 = _interopRequireDefault(require("../render/EventType.js"));
+
+var _State = _interopRequireDefault(require("../source/State.js"));
+
+var _asserts = require("../asserts.js");
+
+var _obj = require("../obj.js");
+
+var _Object = require("../Object.js");
+
+var _events = require("../events.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/layer/Layer
+ */
+
+
+/**
+ * @typedef {function(import("../PluggableMap.js").FrameState):HTMLElement} RenderFunction
+ */
+
+/**
+ * @typedef {Object} Options
+ * @property {string} [className='ol-layer'] A CSS class name to set to the layer element.
+ * @property {number} [opacity=1] Opacity (0, 1).
+ * @property {boolean} [visible=true] Visibility.
+ * @property {import("../extent.js").Extent} [extent] The bounding extent for layer rendering. The layer will not be
+ * rendered outside of this extent.
+ * @property {number} [zIndex] The z-index for layer rendering. At rendering time, the layers
+ * will be ordered, first by Z-index and then by position. When `undefined`, a `zIndex` of 0 is assumed
+ * for layers that are added to the map's `layers` collection, or `Infinity` when the layer's `setMap()`
+ * method was used.
+ * @property {number} [minResolution] The minimum resolution (inclusive) at which this layer will be
+ * visible.
+ * @property {number} [maxResolution] The maximum resolution (exclusive) below which this layer will
+ * be visible.
+ * @property {number} [minZoom] The minimum view zoom level (exclusive) above which this layer will be
+ * visible.
+ * @property {number} [maxZoom] The maximum view zoom level (inclusive) at which this layer will
+ * be visible.
+ * @property {import("../source/Source.js").default} [source] Source for this layer. If not provided to the constructor,
+ * the source can be set by calling {@link module:ol/layer/Layer#setSource layer.setSource(source)} after
+ * construction.
+ * @property {import("../PluggableMap.js").default} [map] Map.
+ * @property {RenderFunction} [render] Render function. Takes the frame state as input and is expected to return an
+ * HTML element. Will overwrite the default rendering for the layer.
+ */
+
+/**
+ * @typedef {Object} State
+ * @property {import("./Layer.js").default} layer
+ * @property {number} opacity Opacity, the value is rounded to two digits to appear after the decimal point.
+ * @property {import("../source/State.js").default} sourceState
+ * @property {boolean} visible
+ * @property {boolean} managed
+ * @property {import("../extent.js").Extent} [extent]
+ * @property {number} zIndex
+ * @property {number} maxResolution
+ * @property {number} minResolution
+ * @property {number} minZoom
+ * @property {number} maxZoom
+ */
+
+/**
+ * @classdesc
+ * Base class from which all layer types are derived. This should only be instantiated
+ * in the case where a custom layer is be added to the map with a custom `render` function.
+ * Such a function can be specified in the `options` object, and is expected to return an HTML element.
+ *
+ * A visual representation of raster or vector map data.
+ * Layers group together those properties that pertain to how the data is to be
+ * displayed, irrespective of the source of that data.
+ *
+ * Layers are usually added to a map with {@link module:ol/Map#addLayer}. Components
+ * like {@link module:ol/interaction/Select~Select} use unmanaged layers
+ * internally. These unmanaged layers are associated with the map using
+ * {@link module:ol/layer/Layer~Layer#setMap} instead.
+ *
+ * A generic `change` event is fired when the state of the source changes.
+ *
+ * Please note that for performance reasons several layers might get rendered to
+ * the same HTML element, which will cause {@link module:ol/Map~Map#forEachLayerAtPixel} to
+ * give false positives. To avoid this, apply different `className` properties to the
+ * layers at creation time.
+ *
+ * @fires import("../render/Event.js").RenderEvent#prerender
+ * @fires import("../render/Event.js").RenderEvent#postrender
+ *
+ * @template {import("../source/Source.js").default} SourceType
+ * @api
+ */
+var Layer =
+/** @class */
+function (_super) {
+ __extends(Layer, _super);
+ /**
+ * @param {Options} options Layer options.
+ */
+
+
+ function Layer(options) {
+ var _this = this;
+
+ var baseOptions = (0, _obj.assign)({}, options);
+ delete baseOptions.source;
+ _this = _super.call(this, baseOptions) || this;
+ /**
+ * @private
+ * @type {?import("../events.js").EventsKey}
+ */
+
+ _this.mapPrecomposeKey_ = null;
+ /**
+ * @private
+ * @type {?import("../events.js").EventsKey}
+ */
+
+ _this.mapRenderKey_ = null;
+ /**
+ * @private
+ * @type {?import("../events.js").EventsKey}
+ */
+
+ _this.sourceChangeKey_ = null;
+ /**
+ * @private
+ * @type {import("../renderer/Layer.js").default}
+ */
+
+ _this.renderer_ = null; // Overwrite default render method with a custom one
+
+ if (options.render) {
+ _this.render = options.render;
+ }
+
+ if (options.map) {
+ _this.setMap(options.map);
+ }
+
+ _this.addEventListener((0, _Object.getChangeEventType)(_Property.default.SOURCE), _this.handleSourcePropertyChange_);
+
+ var source = options.source ?
+ /** @type {SourceType} */
+ options.source : null;
+
+ _this.setSource(source);
+
+ return _this;
+ }
+ /**
+ * @param {Array<import("./Layer.js").default>=} opt_array Array of layers (to be modified in place).
+ * @return {Array<import("./Layer.js").default>} Array of layers.
+ */
+
+
+ Layer.prototype.getLayersArray = function (opt_array) {
+ var array = opt_array ? opt_array : [];
+ array.push(this);
+ return array;
+ };
+ /**
+ * @param {Array<import("./Layer.js").State>=} opt_states Optional list of layer states (to be modified in place).
+ * @return {Array<import("./Layer.js").State>} List of layer states.
+ */
+
+
+ Layer.prototype.getLayerStatesArray = function (opt_states) {
+ var states = opt_states ? opt_states : [];
+ states.push(this.getLayerState());
+ return states;
+ };
+ /**
+ * Get the layer source.
+ * @return {SourceType} The layer source (or `null` if not yet set).
+ * @observable
+ * @api
+ */
+
+
+ Layer.prototype.getSource = function () {
+ return (
+ /** @type {SourceType} */
+ this.get(_Property.default.SOURCE) || null
+ );
+ };
+ /**
+ * @return {import("../source/State.js").default} Source state.
+ */
+
+
+ Layer.prototype.getSourceState = function () {
+ var source = this.getSource();
+ return !source ? _State.default.UNDEFINED : source.getState();
+ };
+ /**
+ * @private
+ */
+
+
+ Layer.prototype.handleSourceChange_ = function () {
+ this.changed();
+ };
+ /**
+ * @private
+ */
+
+
+ Layer.prototype.handleSourcePropertyChange_ = function () {
+ if (this.sourceChangeKey_) {
+ (0, _events.unlistenByKey)(this.sourceChangeKey_);
+ this.sourceChangeKey_ = null;
+ }
+
+ var source = this.getSource();
+
+ if (source) {
+ this.sourceChangeKey_ = (0, _events.listen)(source, _EventType.default.CHANGE, this.handleSourceChange_, this);
+ }
+
+ this.changed();
+ };
+ /**
+ * @param {import("../pixel").Pixel} pixel Pixel.
+ * @return {Promise<Array<import("../Feature").default>>} Promise that resolves with
+ * an array of features.
+ */
+
+
+ Layer.prototype.getFeatures = function (pixel) {
+ return this.renderer_.getFeatures(pixel);
+ };
+ /**
+ * In charge to manage the rendering of the layer. One layer type is
+ * bounded with one layer renderer.
+ * @param {?import("../PluggableMap.js").FrameState} frameState Frame state.
+ * @param {HTMLElement} target Target which the renderer may (but need not) use
+ * for rendering its content.
+ * @return {HTMLElement} The rendered element.
+ */
+
+
+ Layer.prototype.render = function (frameState, target) {
+ var layerRenderer = this.getRenderer();
+
+ if (layerRenderer.prepareFrame(frameState)) {
+ return layerRenderer.renderFrame(frameState, target);
+ }
+ };
+ /**
+ * Sets the layer to be rendered on top of other layers on a map. The map will
+ * not manage this layer in its layers collection, and the callback in
+ * {@link module:ol/Map#forEachLayerAtPixel} will receive `null` as layer. This
+ * is useful for temporary layers. To remove an unmanaged layer from the map,
+ * use `#setMap(null)`.
+ *
+ * To add the layer to a map and have it managed by the map, use
+ * {@link module:ol/Map#addLayer} instead.
+ * @param {import("../PluggableMap.js").default} map Map.
+ * @api
+ */
+
+
+ Layer.prototype.setMap = function (map) {
+ if (this.mapPrecomposeKey_) {
+ (0, _events.unlistenByKey)(this.mapPrecomposeKey_);
+ this.mapPrecomposeKey_ = null;
+ }
+
+ if (!map) {
+ this.changed();
+ }
+
+ if (this.mapRenderKey_) {
+ (0, _events.unlistenByKey)(this.mapRenderKey_);
+ this.mapRenderKey_ = null;
+ }
+
+ if (map) {
+ this.mapPrecomposeKey_ = (0, _events.listen)(map, _EventType2.default.PRECOMPOSE, function (evt) {
+ var renderEvent =
+ /** @type {import("../render/Event.js").default} */
+ evt;
+ var layerStatesArray = renderEvent.frameState.layerStatesArray;
+ var layerState = this.getLayerState(false); // A layer can only be added to the map once. Use either `layer.setMap()` or `map.addLayer()`, not both.
+
+ (0, _asserts.assert)(!layerStatesArray.some(function (arrayLayerState) {
+ return arrayLayerState.layer === layerState.layer;
+ }), 67);
+ layerStatesArray.push(layerState);
+ }, this);
+ this.mapRenderKey_ = (0, _events.listen)(this, _EventType.default.CHANGE, map.render, map);
+ this.changed();
+ }
+ };
+ /**
+ * Set the layer source.
+ * @param {SourceType} source The layer source.
+ * @observable
+ * @api
+ */
+
+
+ Layer.prototype.setSource = function (source) {
+ this.set(_Property.default.SOURCE, source);
+ };
+ /**
+ * Get the renderer for this layer.
+ * @return {import("../renderer/Layer.js").default} The layer renderer.
+ */
+
+
+ Layer.prototype.getRenderer = function () {
+ if (!this.renderer_) {
+ this.renderer_ = this.createRenderer();
+ }
+
+ return this.renderer_;
+ };
+ /**
+ * @return {boolean} The layer has a renderer.
+ */
+
+
+ Layer.prototype.hasRenderer = function () {
+ return !!this.renderer_;
+ };
+ /**
+ * Create a renderer for this layer.
+ * @return {import("../renderer/Layer.js").default} A layer renderer.
+ * @protected
+ */
+
+
+ Layer.prototype.createRenderer = function () {
+ return null;
+ };
+ /**
+ * Clean up.
+ */
+
+
+ Layer.prototype.disposeInternal = function () {
+ this.setSource(null);
+
+ _super.prototype.disposeInternal.call(this);
+ };
+
+ return Layer;
+}(_Base.default);
+/**
+ * Return `true` if the layer is visible and if the provided view state
+ * has resolution and zoom levels that are in range of the layer's min/max.
+ * @param {State} layerState Layer state.
+ * @param {import("../View.js").State} viewState View state.
+ * @return {boolean} The layer is visible at the given view state.
+ */
+
+
+function inView(layerState, viewState) {
+ if (!layerState.visible) {
+ return false;
+ }
+
+ var resolution = viewState.resolution;
+
+ if (resolution < layerState.minResolution || resolution >= layerState.maxResolution) {
+ return false;
+ }
+
+ var zoom = viewState.zoom;
+ return zoom > layerState.minZoom && zoom <= layerState.maxZoom;
+}
+
+var _default = Layer;
+exports.default = _default;
+},{"./Base.js":"../../../node_modules/ol/layer/Base.js","../events/EventType.js":"../../../node_modules/ol/events/EventType.js","./Property.js":"../../../node_modules/ol/layer/Property.js","../render/EventType.js":"../../../node_modules/ol/render/EventType.js","../source/State.js":"../../../node_modules/ol/source/State.js","../asserts.js":"../../../node_modules/ol/asserts.js","../obj.js":"../../../node_modules/ol/obj.js","../Object.js":"../../../node_modules/ol/Object.js","../events.js":"../../../node_modules/ol/events.js"}],"../../../node_modules/ol/layer/BaseVector.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Layer = _interopRequireDefault(require("./Layer.js"));
+
+var _obj = require("../obj.js");
+
+var _Style = require("../style/Style.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/layer/BaseVector
+ */
+
+
+/**
+ * @typedef {Object} Options
+ * @property {string} [className='ol-layer'] A CSS class name to set to the layer element.
+ * @property {number} [opacity=1] Opacity (0, 1).
+ * @property {boolean} [visible=true] Visibility.
+ * @property {import("../extent.js").Extent} [extent] The bounding extent for layer rendering. The layer will not be
+ * rendered outside of this extent.
+ * @property {number} [zIndex] The z-index for layer rendering. At rendering time, the layers
+ * will be ordered, first by Z-index and then by position. When `undefined`, a `zIndex` of 0 is assumed
+ * for layers that are added to the map's `layers` collection, or `Infinity` when the layer's `setMap()`
+ * method was used.
+ * @property {number} [minResolution] The minimum resolution (inclusive) at which this layer will be
+ * visible.
+ * @property {number} [maxResolution] The maximum resolution (exclusive) below which this layer will
+ * be visible.
+ * @property {number} [minZoom] The minimum view zoom level (exclusive) above which this layer will be
+ * visible.
+ * @property {number} [maxZoom] The maximum view zoom level (inclusive) at which this layer will
+ * be visible.
+ * @property {import("../render.js").OrderFunction} [renderOrder] Render order. Function to be used when sorting
+ * features before rendering. By default features are drawn in the order that they are created. Use
+ * `null` to avoid the sort, but get an undefined draw order.
+ * @property {number} [renderBuffer=100] The buffer in pixels around the viewport extent used by the
+ * renderer when getting features from the vector source for the rendering or hit-detection.
+ * Recommended value: the size of the largest symbol, line width or label.
+ * @property {import("../source/Vector.js").default} [source] Source.
+ * @property {import("../PluggableMap.js").default} [map] Sets the layer as overlay on a map. The map will not manage
+ * this layer in its layers collection, and the layer will be rendered on top. This is useful for
+ * temporary layers. The standard way to add a layer to a map and have it managed by the map is to
+ * use {@link module:ol/Map#addLayer}.
+ * @property {boolean} [declutter=false] Declutter images and text. Decluttering is applied to all
+ * image and text styles of all Vector and VectorTile layers that have set this to `true`. The priority
+ * is defined by the z-index of the layer, the `zIndex` of the style and the render order of features.
+ * Higher z-index means higher priority. Within the same z-index, a feature rendered before another has
+ * higher priority.
+ * @property {import("../style/Style.js").StyleLike|null} [style] Layer style. When set to `null`, only
+ * features that have their own style will be rendered. See {@link module:ol/style} for default style
+ * which will be used if this is not set.
+ * @property {boolean} [updateWhileAnimating=false] When set to `true`, feature batches will
+ * be recreated during animations. This means that no vectors will be shown clipped, but the
+ * setting will have a performance impact for large amounts of vector data. When set to `false`,
+ * batches will be recreated when no animation is active.
+ * @property {boolean} [updateWhileInteracting=false] When set to `true`, feature batches will
+ * be recreated during interactions. See also `updateWhileAnimating`.
+ */
+
+/**
+ * @enum {string}
+ * @private
+ */
+var Property = {
+ RENDER_ORDER: 'renderOrder'
+};
+/**
+ * @classdesc
+ * Vector data that is rendered client-side.
+ * Note that any property set in the options is set as a {@link module:ol/Object~BaseObject}
+ * property on the layer object; for example, setting `title: 'My Title'` in the
+ * options means that `title` is observable, and has get/set accessors.
+ *
+ * @template {import("../source/Vector.js").default|import("../source/VectorTile.js").default} VectorSourceType
+ * @extends {Layer<VectorSourceType>}
+ * @api
+ */
+
+var BaseVectorLayer =
+/** @class */
+function (_super) {
+ __extends(BaseVectorLayer, _super);
+ /**
+ * @param {Options=} opt_options Options.
+ */
+
+
+ function BaseVectorLayer(opt_options) {
+ var _this = this;
+
+ var options = opt_options ? opt_options : {};
+ var baseOptions = (0, _obj.assign)({}, options);
+ delete baseOptions.style;
+ delete baseOptions.renderBuffer;
+ delete baseOptions.updateWhileAnimating;
+ delete baseOptions.updateWhileInteracting;
+ _this = _super.call(this, baseOptions) || this;
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ _this.declutter_ = options.declutter !== undefined ? options.declutter : false;
+ /**
+ * @type {number}
+ * @private
+ */
+
+ _this.renderBuffer_ = options.renderBuffer !== undefined ? options.renderBuffer : 100;
+ /**
+ * User provided style.
+ * @type {import("../style/Style.js").StyleLike}
+ * @private
+ */
+
+ _this.style_ = null;
+ /**
+ * Style function for use within the library.
+ * @type {import("../style/Style.js").StyleFunction|undefined}
+ * @private
+ */
+
+ _this.styleFunction_ = undefined;
+
+ _this.setStyle(options.style);
+ /**
+ * @type {boolean}
+ * @private
+ */
+
+
+ _this.updateWhileAnimating_ = options.updateWhileAnimating !== undefined ? options.updateWhileAnimating : false;
+ /**
+ * @type {boolean}
+ * @private
+ */
+
+ _this.updateWhileInteracting_ = options.updateWhileInteracting !== undefined ? options.updateWhileInteracting : false;
+ return _this;
+ }
+ /**
+ * @return {boolean} Declutter.
+ */
+
+
+ BaseVectorLayer.prototype.getDeclutter = function () {
+ return this.declutter_;
+ };
+ /**
+ * Get the topmost feature that intersects the given pixel on the viewport. Returns a promise
+ * that resolves with an array of features. The array will either contain the topmost feature
+ * when a hit was detected, or it will be empty.
+ *
+ * The hit detection algorithm used for this method is optimized for performance, but is less
+ * accurate than the one used in {@link import("../PluggableMap.js").default#getFeaturesAtPixel}: Text
+ * is not considered, and icons are only represented by their bounding box instead of the exact
+ * image.
+ *
+ * @param {import("../pixel.js").Pixel} pixel Pixel.
+ * @return {Promise<Array<import("../Feature").default>>} Promise that resolves with an array of features.
+ * @api
+ */
+
+
+ BaseVectorLayer.prototype.getFeatures = function (pixel) {
+ return _super.prototype.getFeatures.call(this, pixel);
+ };
+ /**
+ * @return {number|undefined} Render buffer.
+ */
+
+
+ BaseVectorLayer.prototype.getRenderBuffer = function () {
+ return this.renderBuffer_;
+ };
+ /**
+ * @return {function(import("../Feature.js").default, import("../Feature.js").default): number|null|undefined} Render
+ * order.
+ */
+
+
+ BaseVectorLayer.prototype.getRenderOrder = function () {
+ return (
+ /** @type {import("../render.js").OrderFunction|null|undefined} */
+ this.get(Property.RENDER_ORDER)
+ );
+ };
+ /**
+ * Get the style for features. This returns whatever was passed to the `style`
+ * option at construction or to the `setStyle` method.
+ * @return {import("../style/Style.js").StyleLike|null|undefined} Layer style.
+ * @api
+ */
+
+
+ BaseVectorLayer.prototype.getStyle = function () {
+ return this.style_;
+ };
+ /**
+ * Get the style function.
+ * @return {import("../style/Style.js").StyleFunction|undefined} Layer style function.
+ * @api
+ */
+
+
+ BaseVectorLayer.prototype.getStyleFunction = function () {
+ return this.styleFunction_;
+ };
+ /**
+ * @return {boolean} Whether the rendered layer should be updated while
+ * animating.
+ */
+
+
+ BaseVectorLayer.prototype.getUpdateWhileAnimating = function () {
+ return this.updateWhileAnimating_;
+ };
+ /**
+ * @return {boolean} Whether the rendered layer should be updated while
+ * interacting.
+ */
+
+
+ BaseVectorLayer.prototype.getUpdateWhileInteracting = function () {
+ return this.updateWhileInteracting_;
+ };
+ /**
+ * @param {import("../render.js").OrderFunction|null|undefined} renderOrder
+ * Render order.
+ */
+
+
+ BaseVectorLayer.prototype.setRenderOrder = function (renderOrder) {
+ this.set(Property.RENDER_ORDER, renderOrder);
+ };
+ /**
+ * Set the style for features. This can be a single style object, an array
+ * of styles, or a function that takes a feature and resolution and returns
+ * an array of styles. If set to `null`, the layer has no style (a `null` style),
+ * so only features that have their own styles will be rendered in the layer. Call
+ * `setStyle()` without arguments to reset to the default style. See
+ * {@link module:ol/style} for information on the default style.
+ * @param {(import("../style/Style.js").StyleLike|null)=} opt_style Layer style.
+ * @api
+ */
+
+
+ BaseVectorLayer.prototype.setStyle = function (opt_style) {
+ this.style_ = opt_style !== undefined ? opt_style : _Style.createDefaultStyle;
+ this.styleFunction_ = opt_style === null ? undefined : (0, _Style.toFunction)(this.style_);
+ this.changed();
+ };
+
+ return BaseVectorLayer;
+}(_Layer.default);
+
+var _default = BaseVectorLayer;
+exports.default = _default;
+},{"./Layer.js":"../../../node_modules/ol/layer/Layer.js","../obj.js":"../../../node_modules/ol/obj.js","../style/Style.js":"../../../node_modules/ol/style/Style.js"}],"../../../node_modules/ol/render/canvas/Instruction.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = exports.closePathInstruction = exports.beginPathInstruction = exports.strokeInstruction = exports.fillInstruction = void 0;
+
+/**
+ * @module ol/render/canvas/Instruction
+ */
+
+/**
+ * @enum {number}
+ */
+var Instruction = {
+ BEGIN_GEOMETRY: 0,
+ BEGIN_PATH: 1,
+ CIRCLE: 2,
+ CLOSE_PATH: 3,
+ CUSTOM: 4,
+ DRAW_CHARS: 5,
+ DRAW_IMAGE: 6,
+ END_GEOMETRY: 7,
+ FILL: 8,
+ MOVE_TO_LINE_TO: 9,
+ SET_FILL_STYLE: 10,
+ SET_STROKE_STYLE: 11,
+ STROKE: 12
+};
+/**
+ * @type {Array<Instruction>}
+ */
+
+var fillInstruction = [Instruction.FILL];
+/**
+ * @type {Array<Instruction>}
+ */
+
+exports.fillInstruction = fillInstruction;
+var strokeInstruction = [Instruction.STROKE];
+/**
+ * @type {Array<Instruction>}
+ */
+
+exports.strokeInstruction = strokeInstruction;
+var beginPathInstruction = [Instruction.BEGIN_PATH];
+/**
+ * @type {Array<Instruction>}
+ */
+
+exports.beginPathInstruction = beginPathInstruction;
+var closePathInstruction = [Instruction.CLOSE_PATH];
+exports.closePathInstruction = closePathInstruction;
+var _default = Instruction;
+exports.default = _default;
+},{}],"../../../node_modules/ol/render/VectorContext.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+/**
+ * @module ol/render/VectorContext
+ */
+
+/**
+ * @classdesc
+ * Context for drawing geometries. A vector context is available on render
+ * events and does not need to be constructed directly.
+ * @api
+ */
+var VectorContext =
+/** @class */
+function () {
+ function VectorContext() {}
+ /**
+ * Render a geometry with a custom renderer.
+ *
+ * @param {import("../geom/SimpleGeometry.js").default} geometry Geometry.
+ * @param {import("../Feature.js").FeatureLike} feature Feature.
+ * @param {Function} renderer Renderer.
+ */
+
+
+ VectorContext.prototype.drawCustom = function (geometry, feature, renderer) {};
+ /**
+ * Render a geometry.
+ *
+ * @param {import("../geom/Geometry.js").default} geometry The geometry to render.
+ */
+
+
+ VectorContext.prototype.drawGeometry = function (geometry) {};
+ /**
+ * Set the rendering style.
+ *
+ * @param {import("../style/Style.js").default} style The rendering style.
+ */
+
+
+ VectorContext.prototype.setStyle = function (style) {};
+ /**
+ * @param {import("../geom/Circle.js").default} circleGeometry Circle geometry.
+ * @param {import("../Feature.js").default} feature Feature.
+ */
+
+
+ VectorContext.prototype.drawCircle = function (circleGeometry, feature) {};
+ /**
+ * @param {import("../Feature.js").default} feature Feature.
+ * @param {import("../style/Style.js").default} style Style.
+ */
+
+
+ VectorContext.prototype.drawFeature = function (feature, style) {};
+ /**
+ * @param {import("../geom/GeometryCollection.js").default} geometryCollectionGeometry Geometry collection.
+ * @param {import("../Feature.js").default} feature Feature.
+ */
+
+
+ VectorContext.prototype.drawGeometryCollection = function (geometryCollectionGeometry, feature) {};
+ /**
+ * @param {import("../geom/LineString.js").default|import("./Feature.js").default} lineStringGeometry Line string geometry.
+ * @param {import("../Feature.js").FeatureLike} feature Feature.
+ */
+
+
+ VectorContext.prototype.drawLineString = function (lineStringGeometry, feature) {};
+ /**
+ * @param {import("../geom/MultiLineString.js").default|import("./Feature.js").default} multiLineStringGeometry MultiLineString geometry.
+ * @param {import("../Feature.js").FeatureLike} feature Feature.
+ */
+
+
+ VectorContext.prototype.drawMultiLineString = function (multiLineStringGeometry, feature) {};
+ /**
+ * @param {import("../geom/MultiPoint.js").default|import("./Feature.js").default} multiPointGeometry MultiPoint geometry.
+ * @param {import("../Feature.js").FeatureLike} feature Feature.
+ */
+
+
+ VectorContext.prototype.drawMultiPoint = function (multiPointGeometry, feature) {};
+ /**
+ * @param {import("../geom/MultiPolygon.js").default} multiPolygonGeometry MultiPolygon geometry.
+ * @param {import("../Feature.js").FeatureLike} feature Feature.
+ */
+
+
+ VectorContext.prototype.drawMultiPolygon = function (multiPolygonGeometry, feature) {};
+ /**
+ * @param {import("../geom/Point.js").default|import("./Feature.js").default} pointGeometry Point geometry.
+ * @param {import("../Feature.js").FeatureLike} feature Feature.
+ */
+
+
+ VectorContext.prototype.drawPoint = function (pointGeometry, feature) {};
+ /**
+ * @param {import("../geom/Polygon.js").default|import("./Feature.js").default} polygonGeometry Polygon geometry.
+ * @param {import("../Feature.js").FeatureLike} feature Feature.
+ */
+
+
+ VectorContext.prototype.drawPolygon = function (polygonGeometry, feature) {};
+ /**
+ * @param {import("../geom/SimpleGeometry.js").default|import("./Feature.js").default} geometry Geometry.
+ * @param {import("../Feature.js").FeatureLike} feature Feature.
+ */
+
+
+ VectorContext.prototype.drawText = function (geometry, feature) {};
+ /**
+ * @param {import("../style/Fill.js").default} fillStyle Fill style.
+ * @param {import("../style/Stroke.js").default} strokeStyle Stroke style.
+ */
+
+
+ VectorContext.prototype.setFillStrokeStyle = function (fillStyle, strokeStyle) {};
+ /**
+ * @param {import("../style/Image.js").default} imageStyle Image style.
+ * @param {import("./canvas.js").DeclutterGroup=} opt_declutterGroup Declutter.
+ */
+
+
+ VectorContext.prototype.setImageStyle = function (imageStyle, opt_declutterGroup) {};
+ /**
+ * @param {import("../style/Text.js").default} textStyle Text style.
+ * @param {import("./canvas.js").DeclutterGroups=} opt_declutterGroups Declutter.
+ */
+
+
+ VectorContext.prototype.setTextStyle = function (textStyle, opt_declutterGroups) {};
+
+ return VectorContext;
+}();
+
+var _default = VectorContext;
+exports.default = _default;
+},{}],"../../../node_modules/ol/render/canvas/Builder.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Instruction = _interopRequireDefault(require("./Instruction.js"));
+
+var _GeometryType = _interopRequireDefault(require("../../geom/GeometryType.js"));
+
+var _Relationship = _interopRequireDefault(require("../../extent/Relationship.js"));
+
+var _VectorContext = _interopRequireDefault(require("../VectorContext.js"));
+
+var _colorlike = require("../../colorlike.js");
+
+var _extent = require("../../extent.js");
+
+var _canvas = require("../canvas.js");
+
+var _array = require("../../array.js");
+
+var _inflate = require("../../geom/flat/inflate.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/render/canvas/Builder
+ */
+
+
+/**
+ * @typedef {Object} SerializableInstructions
+ * @property {Array<*>} instructions The rendering instructions.
+ * @property {Array<*>} hitDetectionInstructions The rendering hit detection instructions.
+ * @property {Array<number>} coordinates The array of all coordinates.
+ * @property {!Object<string, import("../canvas.js").TextState>} [textStates] The text states (decluttering).
+ * @property {!Object<string, import("../canvas.js").FillState>} [fillStates] The fill states (decluttering).
+ * @property {!Object<string, import("../canvas.js").StrokeState>} [strokeStates] The stroke states (decluttering).
+ */
+var CanvasBuilder =
+/** @class */
+function (_super) {
+ __extends(CanvasBuilder, _super);
+ /**
+ * @param {number} tolerance Tolerance.
+ * @param {import("../../extent.js").Extent} maxExtent Maximum extent.
+ * @param {number} resolution Resolution.
+ * @param {number} pixelRatio Pixel ratio.
+ */
+
+
+ function CanvasBuilder(tolerance, maxExtent, resolution, pixelRatio) {
+ var _this = _super.call(this) || this;
+ /**
+ * @protected
+ * @type {number}
+ */
+
+
+ _this.tolerance = tolerance;
+ /**
+ * @protected
+ * @const
+ * @type {import("../../extent.js").Extent}
+ */
+
+ _this.maxExtent = maxExtent;
+ /**
+ * @protected
+ * @type {number}
+ */
+
+ _this.pixelRatio = pixelRatio;
+ /**
+ * @protected
+ * @type {number}
+ */
+
+ _this.maxLineWidth = 0;
+ /**
+ * @protected
+ * @const
+ * @type {number}
+ */
+
+ _this.resolution = resolution;
+ /**
+ * @private
+ * @type {Array<*>}
+ */
+
+ _this.beginGeometryInstruction1_ = null;
+ /**
+ * @private
+ * @type {Array<*>}
+ */
+
+ _this.beginGeometryInstruction2_ = null;
+ /**
+ * @private
+ * @type {import("../../extent.js").Extent}
+ */
+
+ _this.bufferedMaxExtent_ = null;
+ /**
+ * @protected
+ * @type {Array<*>}
+ */
+
+ _this.instructions = [];
+ /**
+ * @protected
+ * @type {Array<number>}
+ */
+
+ _this.coordinates = [];
+ /**
+ * @private
+ * @type {import("../../coordinate.js").Coordinate}
+ */
+
+ _this.tmpCoordinate_ = [];
+ /**
+ * @protected
+ * @type {Array<*>}
+ */
+
+ _this.hitDetectionInstructions = [];
+ /**
+ * @protected
+ * @type {import("../canvas.js").FillStrokeState}
+ */
+
+ _this.state =
+ /** @type {import("../canvas.js").FillStrokeState} */
+ {};
+ return _this;
+ }
+ /**
+ * @protected
+ * @param {Array<number>} dashArray Dash array.
+ * @return {Array<number>} Dash array with pixel ratio applied
+ */
+
+
+ CanvasBuilder.prototype.applyPixelRatio = function (dashArray) {
+ var pixelRatio = this.pixelRatio;
+ return pixelRatio == 1 ? dashArray : dashArray.map(function (dash) {
+ return dash * pixelRatio;
+ });
+ };
+ /**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @param {boolean} closed Last input coordinate equals first.
+ * @param {boolean} skipFirst Skip first coordinate.
+ * @protected
+ * @return {number} My end.
+ */
+
+
+ CanvasBuilder.prototype.appendFlatCoordinates = function (flatCoordinates, offset, end, stride, closed, skipFirst) {
+ var myEnd = this.coordinates.length;
+ var extent = this.getBufferedMaxExtent();
+
+ if (skipFirst) {
+ offset += stride;
+ }
+
+ var lastXCoord = flatCoordinates[offset];
+ var lastYCoord = flatCoordinates[offset + 1];
+ var nextCoord = this.tmpCoordinate_;
+ var skipped = true;
+ var i, lastRel, nextRel;
+
+ for (i = offset + stride; i < end; i += stride) {
+ nextCoord[0] = flatCoordinates[i];
+ nextCoord[1] = flatCoordinates[i + 1];
+ nextRel = (0, _extent.coordinateRelationship)(extent, nextCoord);
+
+ if (nextRel !== lastRel) {
+ if (skipped) {
+ this.coordinates[myEnd++] = lastXCoord;
+ this.coordinates[myEnd++] = lastYCoord;
+ }
+
+ this.coordinates[myEnd++] = nextCoord[0];
+ this.coordinates[myEnd++] = nextCoord[1];
+ skipped = false;
+ } else if (nextRel === _Relationship.default.INTERSECTING) {
+ this.coordinates[myEnd++] = nextCoord[0];
+ this.coordinates[myEnd++] = nextCoord[1];
+ skipped = false;
+ } else {
+ skipped = true;
+ }
+
+ lastXCoord = nextCoord[0];
+ lastYCoord = nextCoord[1];
+ lastRel = nextRel;
+ } // Last coordinate equals first or only one point to append:
+
+
+ if (closed && skipped || i === offset + stride) {
+ this.coordinates[myEnd++] = lastXCoord;
+ this.coordinates[myEnd++] = lastYCoord;
+ }
+
+ return myEnd;
+ };
+ /**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {Array<number>} ends Ends.
+ * @param {number} stride Stride.
+ * @param {Array<number>} builderEnds Builder ends.
+ * @return {number} Offset.
+ */
+
+
+ CanvasBuilder.prototype.drawCustomCoordinates_ = function (flatCoordinates, offset, ends, stride, builderEnds) {
+ for (var i = 0, ii = ends.length; i < ii; ++i) {
+ var end = ends[i];
+ var builderEnd = this.appendFlatCoordinates(flatCoordinates, offset, end, stride, false, false);
+ builderEnds.push(builderEnd);
+ offset = end;
+ }
+
+ return offset;
+ };
+ /**
+ * @param {import("../../geom/SimpleGeometry.js").default} geometry Geometry.
+ * @param {import("../../Feature.js").FeatureLike} feature Feature.
+ * @param {Function} renderer Renderer.
+ */
+
+
+ CanvasBuilder.prototype.drawCustom = function (geometry, feature, renderer) {
+ this.beginGeometry(geometry, feature);
+ var type = geometry.getType();
+ var stride = geometry.getStride();
+ var builderBegin = this.coordinates.length;
+ var flatCoordinates, builderEnd, builderEnds, builderEndss;
+ var offset;
+
+ if (type == _GeometryType.default.MULTI_POLYGON) {
+ flatCoordinates =
+ /** @type {import("../../geom/MultiPolygon.js").default} */
+ geometry.getOrientedFlatCoordinates();
+ builderEndss = [];
+ var endss =
+ /** @type {import("../../geom/MultiPolygon.js").default} */
+ geometry.getEndss();
+ offset = 0;
+
+ for (var i = 0, ii = endss.length; i < ii; ++i) {
+ var myEnds = [];
+ offset = this.drawCustomCoordinates_(flatCoordinates, offset, endss[i], stride, myEnds);
+ builderEndss.push(myEnds);
+ }
+
+ this.instructions.push([_Instruction.default.CUSTOM, builderBegin, builderEndss, geometry, renderer, _inflate.inflateMultiCoordinatesArray]);
+ } else if (type == _GeometryType.default.POLYGON || type == _GeometryType.default.MULTI_LINE_STRING) {
+ builderEnds = [];
+ flatCoordinates = type == _GeometryType.default.POLYGON ?
+ /** @type {import("../../geom/Polygon.js").default} */
+ geometry.getOrientedFlatCoordinates() : geometry.getFlatCoordinates();
+ offset = this.drawCustomCoordinates_(flatCoordinates, 0,
+ /** @type {import("../../geom/Polygon.js").default|import("../../geom/MultiLineString.js").default} */
+ geometry.getEnds(), stride, builderEnds);
+ this.instructions.push([_Instruction.default.CUSTOM, builderBegin, builderEnds, geometry, renderer, _inflate.inflateCoordinatesArray]);
+ } else if (type == _GeometryType.default.LINE_STRING || type == _GeometryType.default.MULTI_POINT) {
+ flatCoordinates = geometry.getFlatCoordinates();
+ builderEnd = this.appendFlatCoordinates(flatCoordinates, 0, flatCoordinates.length, stride, false, false);
+ this.instructions.push([_Instruction.default.CUSTOM, builderBegin, builderEnd, geometry, renderer, _inflate.inflateCoordinates]);
+ } else if (type == _GeometryType.default.POINT) {
+ flatCoordinates = geometry.getFlatCoordinates();
+ this.coordinates.push(flatCoordinates[0], flatCoordinates[1]);
+ builderEnd = this.coordinates.length;
+ this.instructions.push([_Instruction.default.CUSTOM, builderBegin, builderEnd, geometry, renderer]);
+ }
+
+ this.endGeometry(feature);
+ };
+ /**
+ * @protected
+ * @param {import("../../geom/Geometry").default|import("../Feature.js").default} geometry The geometry.
+ * @param {import("../../Feature.js").FeatureLike} feature Feature.
+ */
+
+
+ CanvasBuilder.prototype.beginGeometry = function (geometry, feature) {
+ var extent = geometry.getExtent();
+ this.beginGeometryInstruction1_ = [_Instruction.default.BEGIN_GEOMETRY, feature, 0, extent];
+ this.instructions.push(this.beginGeometryInstruction1_);
+ this.beginGeometryInstruction2_ = [_Instruction.default.BEGIN_GEOMETRY, feature, 0, extent];
+ this.hitDetectionInstructions.push(this.beginGeometryInstruction2_);
+ };
+ /**
+ * @return {SerializableInstructions} the serializable instructions.
+ */
+
+
+ CanvasBuilder.prototype.finish = function () {
+ return {
+ instructions: this.instructions,
+ hitDetectionInstructions: this.hitDetectionInstructions,
+ coordinates: this.coordinates
+ };
+ };
+ /**
+ * Reverse the hit detection instructions.
+ */
+
+
+ CanvasBuilder.prototype.reverseHitDetectionInstructions = function () {
+ var hitDetectionInstructions = this.hitDetectionInstructions; // step 1 - reverse array
+
+ hitDetectionInstructions.reverse(); // step 2 - reverse instructions within geometry blocks
+
+ var i;
+ var n = hitDetectionInstructions.length;
+ var instruction;
+ var type;
+ var begin = -1;
+
+ for (i = 0; i < n; ++i) {
+ instruction = hitDetectionInstructions[i];
+ type =
+ /** @type {import("./Instruction.js").default} */
+ instruction[0];
+
+ if (type == _Instruction.default.END_GEOMETRY) {
+ begin = i;
+ } else if (type == _Instruction.default.BEGIN_GEOMETRY) {
+ instruction[2] = i;
+ (0, _array.reverseSubArray)(this.hitDetectionInstructions, begin, i);
+ begin = -1;
+ }
+ }
+ };
+ /**
+ * @param {import("../../style/Fill.js").default} fillStyle Fill style.
+ * @param {import("../../style/Stroke.js").default} strokeStyle Stroke style.
+ */
+
+
+ CanvasBuilder.prototype.setFillStrokeStyle = function (fillStyle, strokeStyle) {
+ var state = this.state;
+
+ if (fillStyle) {
+ var fillStyleColor = fillStyle.getColor();
+ state.fillStyle = (0, _colorlike.asColorLike)(fillStyleColor ? fillStyleColor : _canvas.defaultFillStyle);
+ } else {
+ state.fillStyle = undefined;
+ }
+
+ if (strokeStyle) {
+ var strokeStyleColor = strokeStyle.getColor();
+ state.strokeStyle = (0, _colorlike.asColorLike)(strokeStyleColor ? strokeStyleColor : _canvas.defaultStrokeStyle);
+ var strokeStyleLineCap = strokeStyle.getLineCap();
+ state.lineCap = strokeStyleLineCap !== undefined ? strokeStyleLineCap : _canvas.defaultLineCap;
+ var strokeStyleLineDash = strokeStyle.getLineDash();
+ state.lineDash = strokeStyleLineDash ? strokeStyleLineDash.slice() : _canvas.defaultLineDash;
+ var strokeStyleLineDashOffset = strokeStyle.getLineDashOffset();
+ state.lineDashOffset = strokeStyleLineDashOffset ? strokeStyleLineDashOffset : _canvas.defaultLineDashOffset;
+ var strokeStyleLineJoin = strokeStyle.getLineJoin();
+ state.lineJoin = strokeStyleLineJoin !== undefined ? strokeStyleLineJoin : _canvas.defaultLineJoin;
+ var strokeStyleWidth = strokeStyle.getWidth();
+ state.lineWidth = strokeStyleWidth !== undefined ? strokeStyleWidth : _canvas.defaultLineWidth;
+ var strokeStyleMiterLimit = strokeStyle.getMiterLimit();
+ state.miterLimit = strokeStyleMiterLimit !== undefined ? strokeStyleMiterLimit : _canvas.defaultMiterLimit;
+
+ if (state.lineWidth > this.maxLineWidth) {
+ this.maxLineWidth = state.lineWidth; // invalidate the buffered max extent cache
+
+ this.bufferedMaxExtent_ = null;
+ }
+ } else {
+ state.strokeStyle = undefined;
+ state.lineCap = undefined;
+ state.lineDash = null;
+ state.lineDashOffset = undefined;
+ state.lineJoin = undefined;
+ state.lineWidth = undefined;
+ state.miterLimit = undefined;
+ }
+ };
+ /**
+ * @param {import("../canvas.js").FillStrokeState} state State.
+ * @return {Array<*>} Fill instruction.
+ */
+
+
+ CanvasBuilder.prototype.createFill = function (state) {
+ var fillStyle = state.fillStyle;
+ /** @type {Array<*>} */
+
+ var fillInstruction = [_Instruction.default.SET_FILL_STYLE, fillStyle];
+
+ if (typeof fillStyle !== 'string') {
+ // Fill is a pattern or gradient - align it!
+ fillInstruction.push(true);
+ }
+
+ return fillInstruction;
+ };
+ /**
+ * @param {import("../canvas.js").FillStrokeState} state State.
+ */
+
+
+ CanvasBuilder.prototype.applyStroke = function (state) {
+ this.instructions.push(this.createStroke(state));
+ };
+ /**
+ * @param {import("../canvas.js").FillStrokeState} state State.
+ * @return {Array<*>} Stroke instruction.
+ */
+
+
+ CanvasBuilder.prototype.createStroke = function (state) {
+ return [_Instruction.default.SET_STROKE_STYLE, state.strokeStyle, state.lineWidth * this.pixelRatio, state.lineCap, state.lineJoin, state.miterLimit, this.applyPixelRatio(state.lineDash), state.lineDashOffset * this.pixelRatio];
+ };
+ /**
+ * @param {import("../canvas.js").FillStrokeState} state State.
+ * @param {function(this:CanvasBuilder, import("../canvas.js").FillStrokeState):Array<*>} createFill Create fill.
+ */
+
+
+ CanvasBuilder.prototype.updateFillStyle = function (state, createFill) {
+ var fillStyle = state.fillStyle;
+
+ if (typeof fillStyle !== 'string' || state.currentFillStyle != fillStyle) {
+ if (fillStyle !== undefined) {
+ this.instructions.push(createFill.call(this, state));
+ }
+
+ state.currentFillStyle = fillStyle;
+ }
+ };
+ /**
+ * @param {import("../canvas.js").FillStrokeState} state State.
+ * @param {function(this:CanvasBuilder, import("../canvas.js").FillStrokeState): void} applyStroke Apply stroke.
+ */
+
+
+ CanvasBuilder.prototype.updateStrokeStyle = function (state, applyStroke) {
+ var strokeStyle = state.strokeStyle;
+ var lineCap = state.lineCap;
+ var lineDash = state.lineDash;
+ var lineDashOffset = state.lineDashOffset;
+ var lineJoin = state.lineJoin;
+ var lineWidth = state.lineWidth;
+ var miterLimit = state.miterLimit;
+
+ if (state.currentStrokeStyle != strokeStyle || state.currentLineCap != lineCap || lineDash != state.currentLineDash && !(0, _array.equals)(state.currentLineDash, lineDash) || state.currentLineDashOffset != lineDashOffset || state.currentLineJoin != lineJoin || state.currentLineWidth != lineWidth || state.currentMiterLimit != miterLimit) {
+ if (strokeStyle !== undefined) {
+ applyStroke.call(this, state);
+ }
+
+ state.currentStrokeStyle = strokeStyle;
+ state.currentLineCap = lineCap;
+ state.currentLineDash = lineDash;
+ state.currentLineDashOffset = lineDashOffset;
+ state.currentLineJoin = lineJoin;
+ state.currentLineWidth = lineWidth;
+ state.currentMiterLimit = miterLimit;
+ }
+ };
+ /**
+ * @param {import("../../Feature.js").FeatureLike} feature Feature.
+ */
+
+
+ CanvasBuilder.prototype.endGeometry = function (feature) {
+ this.beginGeometryInstruction1_[2] = this.instructions.length;
+ this.beginGeometryInstruction1_ = null;
+ this.beginGeometryInstruction2_[2] = this.hitDetectionInstructions.length;
+ this.beginGeometryInstruction2_ = null;
+ var endGeometryInstruction = [_Instruction.default.END_GEOMETRY, feature];
+ this.instructions.push(endGeometryInstruction);
+ this.hitDetectionInstructions.push(endGeometryInstruction);
+ };
+ /**
+ * Get the buffered rendering extent. Rendering will be clipped to the extent
+ * provided to the constructor. To account for symbolizers that may intersect
+ * this extent, we calculate a buffered extent (e.g. based on stroke width).
+ * @return {import("../../extent.js").Extent} The buffered rendering extent.
+ * @protected
+ */
+
+
+ CanvasBuilder.prototype.getBufferedMaxExtent = function () {
+ if (!this.bufferedMaxExtent_) {
+ this.bufferedMaxExtent_ = (0, _extent.clone)(this.maxExtent);
+
+ if (this.maxLineWidth > 0) {
+ var width = this.resolution * (this.maxLineWidth + 1) / 2;
+ (0, _extent.buffer)(this.bufferedMaxExtent_, width, this.bufferedMaxExtent_);
+ }
+ }
+
+ return this.bufferedMaxExtent_;
+ };
+
+ return CanvasBuilder;
+}(_VectorContext.default);
+
+var _default = CanvasBuilder;
+exports.default = _default;
+},{"./Instruction.js":"../../../node_modules/ol/render/canvas/Instruction.js","../../geom/GeometryType.js":"../../../node_modules/ol/geom/GeometryType.js","../../extent/Relationship.js":"../../../node_modules/ol/extent/Relationship.js","../VectorContext.js":"../../../node_modules/ol/render/VectorContext.js","../../colorlike.js":"../../../node_modules/ol/colorlike.js","../../extent.js":"../../../node_modules/ol/extent.js","../canvas.js":"../../../node_modules/ol/render/canvas.js","../../array.js":"../../../node_modules/ol/array.js","../../geom/flat/inflate.js":"../../../node_modules/ol/geom/flat/inflate.js"}],"../../../node_modules/ol/render/canvas/ImageBuilder.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Builder = _interopRequireDefault(require("./Builder.js"));
+
+var _Instruction = _interopRequireDefault(require("./Instruction.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/render/canvas/ImageBuilder
+ */
+
+
+var CanvasImageBuilder =
+/** @class */
+function (_super) {
+ __extends(CanvasImageBuilder, _super);
+ /**
+ * @param {number} tolerance Tolerance.
+ * @param {import("../../extent.js").Extent} maxExtent Maximum extent.
+ * @param {number} resolution Resolution.
+ * @param {number} pixelRatio Pixel ratio.
+ */
+
+
+ function CanvasImageBuilder(tolerance, maxExtent, resolution, pixelRatio) {
+ var _this = _super.call(this, tolerance, maxExtent, resolution, pixelRatio) || this;
+ /**
+ * @private
+ * @type {import("../canvas.js").DeclutterGroups}
+ */
+
+
+ _this.declutterGroups_ = null;
+ /**
+ * @private
+ * @type {HTMLCanvasElement|HTMLVideoElement|HTMLImageElement}
+ */
+
+ _this.hitDetectionImage_ = null;
+ /**
+ * @private
+ * @type {HTMLCanvasElement|HTMLVideoElement|HTMLImageElement}
+ */
+
+ _this.image_ = null;
+ /**
+ * @private
+ * @type {number|undefined}
+ */
+
+ _this.imagePixelRatio_ = undefined;
+ /**
+ * @private
+ * @type {number|undefined}
+ */
+
+ _this.anchorX_ = undefined;
+ /**
+ * @private
+ * @type {number|undefined}
+ */
+
+ _this.anchorY_ = undefined;
+ /**
+ * @private
+ * @type {number|undefined}
+ */
+
+ _this.height_ = undefined;
+ /**
+ * @private
+ * @type {number|undefined}
+ */
+
+ _this.opacity_ = undefined;
+ /**
+ * @private
+ * @type {number|undefined}
+ */
+
+ _this.originX_ = undefined;
+ /**
+ * @private
+ * @type {number|undefined}
+ */
+
+ _this.originY_ = undefined;
+ /**
+ * @private
+ * @type {boolean|undefined}
+ */
+
+ _this.rotateWithView_ = undefined;
+ /**
+ * @private
+ * @type {number|undefined}
+ */
+
+ _this.rotation_ = undefined;
+ /**
+ * @private
+ * @type {import("../../size.js").Size|undefined}
+ */
+
+ _this.scale_ = undefined;
+ /**
+ * @private
+ * @type {number|undefined}
+ */
+
+ _this.width_ = undefined;
+ return _this;
+ }
+ /**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @private
+ * @return {number} My end.
+ */
+
+
+ CanvasImageBuilder.prototype.drawCoordinates_ = function (flatCoordinates, offset, end, stride) {
+ return this.appendFlatCoordinates(flatCoordinates, offset, end, stride, false, false);
+ };
+ /**
+ * @param {import("../../geom/Point.js").default|import("../Feature.js").default} pointGeometry Point geometry.
+ * @param {import("../../Feature.js").FeatureLike} feature Feature.
+ */
+
+
+ CanvasImageBuilder.prototype.drawPoint = function (pointGeometry, feature) {
+ if (!this.image_) {
+ return;
+ }
+
+ this.beginGeometry(pointGeometry, feature);
+ var flatCoordinates = pointGeometry.getFlatCoordinates();
+ var stride = pointGeometry.getStride();
+ var myBegin = this.coordinates.length;
+ var myEnd = this.drawCoordinates_(flatCoordinates, 0, flatCoordinates.length, stride);
+ this.instructions.push([_Instruction.default.DRAW_IMAGE, myBegin, myEnd, this.image_, // Remaining arguments to DRAW_IMAGE are in alphabetical order
+ this.anchorX_ * this.imagePixelRatio_, this.anchorY_ * this.imagePixelRatio_, this.declutterGroups_, Math.ceil(this.height_ * this.imagePixelRatio_), this.opacity_, this.originX_, this.originY_, this.rotateWithView_, this.rotation_, [this.scale_[0] * this.pixelRatio / this.imagePixelRatio_, this.scale_[1] * this.pixelRatio / this.imagePixelRatio_], Math.ceil(this.width_ * this.imagePixelRatio_)]);
+ this.hitDetectionInstructions.push([_Instruction.default.DRAW_IMAGE, myBegin, myEnd, this.hitDetectionImage_, // Remaining arguments to DRAW_IMAGE are in alphabetical order
+ this.anchorX_, this.anchorY_, this.declutterGroups_, this.height_, this.opacity_, this.originX_, this.originY_, this.rotateWithView_, this.rotation_, this.scale_, this.width_]);
+ this.endGeometry(feature);
+ };
+ /**
+ * @param {import("../../geom/MultiPoint.js").default|import("../Feature.js").default} multiPointGeometry MultiPoint geometry.
+ * @param {import("../../Feature.js").FeatureLike} feature Feature.
+ */
+
+
+ CanvasImageBuilder.prototype.drawMultiPoint = function (multiPointGeometry, feature) {
+ if (!this.image_) {
+ return;
+ }
+
+ this.beginGeometry(multiPointGeometry, feature);
+ var flatCoordinates = multiPointGeometry.getFlatCoordinates();
+ var stride = multiPointGeometry.getStride();
+ var myBegin = this.coordinates.length;
+ var myEnd = this.drawCoordinates_(flatCoordinates, 0, flatCoordinates.length, stride);
+ this.instructions.push([_Instruction.default.DRAW_IMAGE, myBegin, myEnd, this.image_, // Remaining arguments to DRAW_IMAGE are in alphabetical order
+ this.anchorX_ * this.imagePixelRatio_, this.anchorY_ * this.imagePixelRatio_, this.declutterGroups_, Math.ceil(this.height_ * this.imagePixelRatio_), this.opacity_, this.originX_, this.originY_, this.rotateWithView_, this.rotation_, [this.scale_[0] * this.pixelRatio / this.imagePixelRatio_, this.scale_[1] * this.pixelRatio / this.imagePixelRatio_], Math.ceil(this.width_ * this.imagePixelRatio_)]);
+ this.hitDetectionInstructions.push([_Instruction.default.DRAW_IMAGE, myBegin, myEnd, this.hitDetectionImage_, // Remaining arguments to DRAW_IMAGE are in alphabetical order
+ this.anchorX_, this.anchorY_, this.declutterGroups_, this.height_, this.opacity_, this.originX_, this.originY_, this.rotateWithView_, this.rotation_, this.scale_, this.width_]);
+ this.endGeometry(feature);
+ };
+ /**
+ * @return {import("./Builder.js").SerializableInstructions} the serializable instructions.
+ */
+
+
+ CanvasImageBuilder.prototype.finish = function () {
+ this.reverseHitDetectionInstructions(); // FIXME this doesn't really protect us against further calls to draw*Geometry
+
+ this.anchorX_ = undefined;
+ this.anchorY_ = undefined;
+ this.hitDetectionImage_ = null;
+ this.image_ = null;
+ this.imagePixelRatio_ = undefined;
+ this.height_ = undefined;
+ this.scale_ = undefined;
+ this.opacity_ = undefined;
+ this.originX_ = undefined;
+ this.originY_ = undefined;
+ this.rotateWithView_ = undefined;
+ this.rotation_ = undefined;
+ this.width_ = undefined;
+ return _super.prototype.finish.call(this);
+ };
+ /**
+ * @param {import("../../style/Image.js").default} imageStyle Image style.
+ * @param {import("../canvas.js").DeclutterGroup} declutterGroups Declutter.
+ */
+
+
+ CanvasImageBuilder.prototype.setImageStyle = function (imageStyle, declutterGroups) {
+ var anchor = imageStyle.getAnchor();
+ var size = imageStyle.getSize();
+ var hitDetectionImage = imageStyle.getHitDetectionImage();
+ var image = imageStyle.getImage(this.pixelRatio);
+ var origin = imageStyle.getOrigin();
+ this.imagePixelRatio_ = imageStyle.getPixelRatio(this.pixelRatio);
+ this.anchorX_ = anchor[0];
+ this.anchorY_ = anchor[1];
+ this.declutterGroups_ = declutterGroups;
+ this.hitDetectionImage_ = hitDetectionImage;
+ this.image_ = image;
+ this.height_ = size[1];
+ this.opacity_ = imageStyle.getOpacity();
+ this.originX_ = origin[0];
+ this.originY_ = origin[1];
+ this.rotateWithView_ = imageStyle.getRotateWithView();
+ this.rotation_ = imageStyle.getRotation();
+ this.scale_ = imageStyle.getScaleArray();
+ this.width_ = size[0];
+ };
+
+ return CanvasImageBuilder;
+}(_Builder.default);
+
+var _default = CanvasImageBuilder;
+exports.default = _default;
+},{"./Builder.js":"../../../node_modules/ol/render/canvas/Builder.js","./Instruction.js":"../../../node_modules/ol/render/canvas/Instruction.js"}],"../../../node_modules/ol/render/canvas/LineStringBuilder.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Builder = _interopRequireDefault(require("./Builder.js"));
+
+var _Instruction = _interopRequireWildcard(require("./Instruction.js"));
+
+function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/render/canvas/LineStringBuilder
+ */
+
+
+var CanvasLineStringBuilder =
+/** @class */
+function (_super) {
+ __extends(CanvasLineStringBuilder, _super);
+ /**
+ * @param {number} tolerance Tolerance.
+ * @param {import("../../extent.js").Extent} maxExtent Maximum extent.
+ * @param {number} resolution Resolution.
+ * @param {number} pixelRatio Pixel ratio.
+ */
+
+
+ function CanvasLineStringBuilder(tolerance, maxExtent, resolution, pixelRatio) {
+ return _super.call(this, tolerance, maxExtent, resolution, pixelRatio) || this;
+ }
+ /**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @private
+ * @return {number} end.
+ */
+
+
+ CanvasLineStringBuilder.prototype.drawFlatCoordinates_ = function (flatCoordinates, offset, end, stride) {
+ var myBegin = this.coordinates.length;
+ var myEnd = this.appendFlatCoordinates(flatCoordinates, offset, end, stride, false, false);
+ var moveToLineToInstruction = [_Instruction.default.MOVE_TO_LINE_TO, myBegin, myEnd];
+ this.instructions.push(moveToLineToInstruction);
+ this.hitDetectionInstructions.push(moveToLineToInstruction);
+ return end;
+ };
+ /**
+ * @param {import("../../geom/LineString.js").default|import("../Feature.js").default} lineStringGeometry Line string geometry.
+ * @param {import("../../Feature.js").FeatureLike} feature Feature.
+ */
+
+
+ CanvasLineStringBuilder.prototype.drawLineString = function (lineStringGeometry, feature) {
+ var state = this.state;
+ var strokeStyle = state.strokeStyle;
+ var lineWidth = state.lineWidth;
+
+ if (strokeStyle === undefined || lineWidth === undefined) {
+ return;
+ }
+
+ this.updateStrokeStyle(state, this.applyStroke);
+ this.beginGeometry(lineStringGeometry, feature);
+ this.hitDetectionInstructions.push([_Instruction.default.SET_STROKE_STYLE, state.strokeStyle, state.lineWidth, state.lineCap, state.lineJoin, state.miterLimit, state.lineDash, state.lineDashOffset], _Instruction.beginPathInstruction);
+ var flatCoordinates = lineStringGeometry.getFlatCoordinates();
+ var stride = lineStringGeometry.getStride();
+ this.drawFlatCoordinates_(flatCoordinates, 0, flatCoordinates.length, stride);
+ this.hitDetectionInstructions.push(_Instruction.strokeInstruction);
+ this.endGeometry(feature);
+ };
+ /**
+ * @param {import("../../geom/MultiLineString.js").default|import("../Feature.js").default} multiLineStringGeometry MultiLineString geometry.
+ * @param {import("../../Feature.js").FeatureLike} feature Feature.
+ */
+
+
+ CanvasLineStringBuilder.prototype.drawMultiLineString = function (multiLineStringGeometry, feature) {
+ var state = this.state;
+ var strokeStyle = state.strokeStyle;
+ var lineWidth = state.lineWidth;
+
+ if (strokeStyle === undefined || lineWidth === undefined) {
+ return;
+ }
+
+ this.updateStrokeStyle(state, this.applyStroke);
+ this.beginGeometry(multiLineStringGeometry, feature);
+ this.hitDetectionInstructions.push([_Instruction.default.SET_STROKE_STYLE, state.strokeStyle, state.lineWidth, state.lineCap, state.lineJoin, state.miterLimit, state.lineDash, state.lineDashOffset], _Instruction.beginPathInstruction);
+ var ends = multiLineStringGeometry.getEnds();
+ var flatCoordinates = multiLineStringGeometry.getFlatCoordinates();
+ var stride = multiLineStringGeometry.getStride();
+ var offset = 0;
+
+ for (var i = 0, ii = ends.length; i < ii; ++i) {
+ offset = this.drawFlatCoordinates_(flatCoordinates, offset,
+ /** @type {number} */
+ ends[i], stride);
+ }
+
+ this.hitDetectionInstructions.push(_Instruction.strokeInstruction);
+ this.endGeometry(feature);
+ };
+ /**
+ * @return {import("./Builder.js").SerializableInstructions} the serializable instructions.
+ */
+
+
+ CanvasLineStringBuilder.prototype.finish = function () {
+ var state = this.state;
+
+ if (state.lastStroke != undefined && state.lastStroke != this.coordinates.length) {
+ this.instructions.push(_Instruction.strokeInstruction);
+ }
+
+ this.reverseHitDetectionInstructions();
+ this.state = null;
+ return _super.prototype.finish.call(this);
+ };
+ /**
+ * @param {import("../canvas.js").FillStrokeState} state State.
+ */
+
+
+ CanvasLineStringBuilder.prototype.applyStroke = function (state) {
+ if (state.lastStroke != undefined && state.lastStroke != this.coordinates.length) {
+ this.instructions.push(_Instruction.strokeInstruction);
+ state.lastStroke = this.coordinates.length;
+ }
+
+ state.lastStroke = 0;
+
+ _super.prototype.applyStroke.call(this, state);
+
+ this.instructions.push(_Instruction.beginPathInstruction);
+ };
+
+ return CanvasLineStringBuilder;
+}(_Builder.default);
+
+var _default = CanvasLineStringBuilder;
+exports.default = _default;
+},{"./Builder.js":"../../../node_modules/ol/render/canvas/Builder.js","./Instruction.js":"../../../node_modules/ol/render/canvas/Instruction.js"}],"../../../node_modules/ol/render/canvas/PolygonBuilder.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Builder = _interopRequireDefault(require("./Builder.js"));
+
+var _Instruction = _interopRequireWildcard(require("./Instruction.js"));
+
+var _canvas = require("../canvas.js");
+
+var _simplify = require("../../geom/flat/simplify.js");
+
+function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/render/canvas/PolygonBuilder
+ */
+
+
+var CanvasPolygonBuilder =
+/** @class */
+function (_super) {
+ __extends(CanvasPolygonBuilder, _super);
+ /**
+ * @param {number} tolerance Tolerance.
+ * @param {import("../../extent.js").Extent} maxExtent Maximum extent.
+ * @param {number} resolution Resolution.
+ * @param {number} pixelRatio Pixel ratio.
+ */
+
+
+ function CanvasPolygonBuilder(tolerance, maxExtent, resolution, pixelRatio) {
+ return _super.call(this, tolerance, maxExtent, resolution, pixelRatio) || this;
+ }
+ /**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {Array<number>} ends Ends.
+ * @param {number} stride Stride.
+ * @private
+ * @return {number} End.
+ */
+
+
+ CanvasPolygonBuilder.prototype.drawFlatCoordinatess_ = function (flatCoordinates, offset, ends, stride) {
+ var state = this.state;
+ var fill = state.fillStyle !== undefined;
+ var stroke = state.strokeStyle !== undefined;
+ var numEnds = ends.length;
+ this.instructions.push(_Instruction.beginPathInstruction);
+ this.hitDetectionInstructions.push(_Instruction.beginPathInstruction);
+
+ for (var i = 0; i < numEnds; ++i) {
+ var end = ends[i];
+ var myBegin = this.coordinates.length;
+ var myEnd = this.appendFlatCoordinates(flatCoordinates, offset, end, stride, true, !stroke);
+ var moveToLineToInstruction = [_Instruction.default.MOVE_TO_LINE_TO, myBegin, myEnd];
+ this.instructions.push(moveToLineToInstruction);
+ this.hitDetectionInstructions.push(moveToLineToInstruction);
+
+ if (stroke) {
+ // Performance optimization: only call closePath() when we have a stroke.
+ // Otherwise the ring is closed already (see appendFlatCoordinates above).
+ this.instructions.push(_Instruction.closePathInstruction);
+ this.hitDetectionInstructions.push(_Instruction.closePathInstruction);
+ }
+
+ offset = end;
+ }
+
+ if (fill) {
+ this.instructions.push(_Instruction.fillInstruction);
+ this.hitDetectionInstructions.push(_Instruction.fillInstruction);
+ }
+
+ if (stroke) {
+ this.instructions.push(_Instruction.strokeInstruction);
+ this.hitDetectionInstructions.push(_Instruction.strokeInstruction);
+ }
+
+ return offset;
+ };
+ /**
+ * @param {import("../../geom/Circle.js").default} circleGeometry Circle geometry.
+ * @param {import("../../Feature.js").default} feature Feature.
+ */
+
+
+ CanvasPolygonBuilder.prototype.drawCircle = function (circleGeometry, feature) {
+ var state = this.state;
+ var fillStyle = state.fillStyle;
+ var strokeStyle = state.strokeStyle;
+
+ if (fillStyle === undefined && strokeStyle === undefined) {
+ return;
+ }
+
+ this.setFillStrokeStyles_();
+ this.beginGeometry(circleGeometry, feature);
+
+ if (state.fillStyle !== undefined) {
+ this.hitDetectionInstructions.push([_Instruction.default.SET_FILL_STYLE, _canvas.defaultFillStyle]);
+ }
+
+ if (state.strokeStyle !== undefined) {
+ this.hitDetectionInstructions.push([_Instruction.default.SET_STROKE_STYLE, state.strokeStyle, state.lineWidth, state.lineCap, state.lineJoin, state.miterLimit, state.lineDash, state.lineDashOffset]);
+ }
+
+ var flatCoordinates = circleGeometry.getFlatCoordinates();
+ var stride = circleGeometry.getStride();
+ var myBegin = this.coordinates.length;
+ this.appendFlatCoordinates(flatCoordinates, 0, flatCoordinates.length, stride, false, false);
+ var circleInstruction = [_Instruction.default.CIRCLE, myBegin];
+ this.instructions.push(_Instruction.beginPathInstruction, circleInstruction);
+ this.hitDetectionInstructions.push(_Instruction.beginPathInstruction, circleInstruction);
+
+ if (state.fillStyle !== undefined) {
+ this.instructions.push(_Instruction.fillInstruction);
+ this.hitDetectionInstructions.push(_Instruction.fillInstruction);
+ }
+
+ if (state.strokeStyle !== undefined) {
+ this.instructions.push(_Instruction.strokeInstruction);
+ this.hitDetectionInstructions.push(_Instruction.strokeInstruction);
+ }
+
+ this.endGeometry(feature);
+ };
+ /**
+ * @param {import("../../geom/Polygon.js").default|import("../Feature.js").default} polygonGeometry Polygon geometry.
+ * @param {import("../../Feature.js").FeatureLike} feature Feature.
+ */
+
+
+ CanvasPolygonBuilder.prototype.drawPolygon = function (polygonGeometry, feature) {
+ var state = this.state;
+ var fillStyle = state.fillStyle;
+ var strokeStyle = state.strokeStyle;
+
+ if (fillStyle === undefined && strokeStyle === undefined) {
+ return;
+ }
+
+ this.setFillStrokeStyles_();
+ this.beginGeometry(polygonGeometry, feature);
+
+ if (state.fillStyle !== undefined) {
+ this.hitDetectionInstructions.push([_Instruction.default.SET_FILL_STYLE, _canvas.defaultFillStyle]);
+ }
+
+ if (state.strokeStyle !== undefined) {
+ this.hitDetectionInstructions.push([_Instruction.default.SET_STROKE_STYLE, state.strokeStyle, state.lineWidth, state.lineCap, state.lineJoin, state.miterLimit, state.lineDash, state.lineDashOffset]);
+ }
+
+ var ends = polygonGeometry.getEnds();
+ var flatCoordinates = polygonGeometry.getOrientedFlatCoordinates();
+ var stride = polygonGeometry.getStride();
+ this.drawFlatCoordinatess_(flatCoordinates, 0,
+ /** @type {Array<number>} */
+ ends, stride);
+ this.endGeometry(feature);
+ };
+ /**
+ * @param {import("../../geom/MultiPolygon.js").default} multiPolygonGeometry MultiPolygon geometry.
+ * @param {import("../../Feature.js").FeatureLike} feature Feature.
+ */
+
+
+ CanvasPolygonBuilder.prototype.drawMultiPolygon = function (multiPolygonGeometry, feature) {
+ var state = this.state;
+ var fillStyle = state.fillStyle;
+ var strokeStyle = state.strokeStyle;
+
+ if (fillStyle === undefined && strokeStyle === undefined) {
+ return;
+ }
+
+ this.setFillStrokeStyles_();
+ this.beginGeometry(multiPolygonGeometry, feature);
+
+ if (state.fillStyle !== undefined) {
+ this.hitDetectionInstructions.push([_Instruction.default.SET_FILL_STYLE, _canvas.defaultFillStyle]);
+ }
+
+ if (state.strokeStyle !== undefined) {
+ this.hitDetectionInstructions.push([_Instruction.default.SET_STROKE_STYLE, state.strokeStyle, state.lineWidth, state.lineCap, state.lineJoin, state.miterLimit, state.lineDash, state.lineDashOffset]);
+ }
+
+ var endss = multiPolygonGeometry.getEndss();
+ var flatCoordinates = multiPolygonGeometry.getOrientedFlatCoordinates();
+ var stride = multiPolygonGeometry.getStride();
+ var offset = 0;
+
+ for (var i = 0, ii = endss.length; i < ii; ++i) {
+ offset = this.drawFlatCoordinatess_(flatCoordinates, offset, endss[i], stride);
+ }
+
+ this.endGeometry(feature);
+ };
+ /**
+ * @return {import("./Builder.js").SerializableInstructions} the serializable instructions.
+ */
+
+
+ CanvasPolygonBuilder.prototype.finish = function () {
+ this.reverseHitDetectionInstructions();
+ this.state = null; // We want to preserve topology when drawing polygons. Polygons are
+ // simplified using quantization and point elimination. However, we might
+ // have received a mix of quantized and non-quantized geometries, so ensure
+ // that all are quantized by quantizing all coordinates in the batch.
+
+ var tolerance = this.tolerance;
+
+ if (tolerance !== 0) {
+ var coordinates = this.coordinates;
+
+ for (var i = 0, ii = coordinates.length; i < ii; ++i) {
+ coordinates[i] = (0, _simplify.snap)(coordinates[i], tolerance);
+ }
+ }
+
+ return _super.prototype.finish.call(this);
+ };
+ /**
+ * @private
+ */
+
+
+ CanvasPolygonBuilder.prototype.setFillStrokeStyles_ = function () {
+ var state = this.state;
+ var fillStyle = state.fillStyle;
+
+ if (fillStyle !== undefined) {
+ this.updateFillStyle(state, this.createFill);
+ }
+
+ if (state.strokeStyle !== undefined) {
+ this.updateStrokeStyle(state, this.applyStroke);
+ }
+ };
+
+ return CanvasPolygonBuilder;
+}(_Builder.default);
+
+var _default = CanvasPolygonBuilder;
+exports.default = _default;
+},{"./Builder.js":"../../../node_modules/ol/render/canvas/Builder.js","./Instruction.js":"../../../node_modules/ol/render/canvas/Instruction.js","../canvas.js":"../../../node_modules/ol/render/canvas.js","../../geom/flat/simplify.js":"../../../node_modules/ol/geom/flat/simplify.js"}],"../../../node_modules/ol/geom/flat/straightchunk.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.matchingChunk = matchingChunk;
+
+/**
+ * @module ol/geom/flat/straightchunk
+ */
+
+/**
+ * @param {number} maxAngle Maximum acceptable angle delta between segments.
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @return {Array<number>} Start and end of the first suitable chunk of the
+ * given `flatCoordinates`.
+ */
+function matchingChunk(maxAngle, flatCoordinates, offset, end, stride) {
+ var chunkStart = offset;
+ var chunkEnd = offset;
+ var chunkM = 0;
+ var m = 0;
+ var start = offset;
+ var acos, i, m12, m23, x1, y1, x12, y12, x23, y23;
+
+ for (i = offset; i < end; i += stride) {
+ var x2 = flatCoordinates[i];
+ var y2 = flatCoordinates[i + 1];
+
+ if (x1 !== undefined) {
+ x23 = x2 - x1;
+ y23 = y2 - y1;
+ m23 = Math.sqrt(x23 * x23 + y23 * y23);
+
+ if (x12 !== undefined) {
+ m += m12;
+ acos = Math.acos((x12 * x23 + y12 * y23) / (m12 * m23));
+
+ if (acos > maxAngle) {
+ if (m > chunkM) {
+ chunkM = m;
+ chunkStart = start;
+ chunkEnd = i;
+ }
+
+ m = 0;
+ start = i - stride;
+ }
+ }
+
+ m12 = m23;
+ x12 = x23;
+ y12 = y23;
+ }
+
+ x1 = x2;
+ y1 = y2;
+ }
+
+ m += m23;
+ return m > chunkM ? [start, i] : [chunkStart, chunkEnd];
+}
+},{}],"../../../node_modules/ol/render/canvas/TextBuilder.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = exports.TEXT_ALIGN = void 0;
+
+var _Builder = _interopRequireDefault(require("./Builder.js"));
+
+var _Instruction = _interopRequireDefault(require("./Instruction.js"));
+
+var _GeometryType = _interopRequireDefault(require("../../geom/GeometryType.js"));
+
+var _TextPlacement = _interopRequireDefault(require("../../style/TextPlacement.js"));
+
+var _colorlike = require("../../colorlike.js");
+
+var _canvas = require("../canvas.js");
+
+var _util = require("../../util.js");
+
+var _extent = require("../../extent.js");
+
+var _straightchunk = require("../../geom/flat/straightchunk.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/render/canvas/TextBuilder
+ */
+
+
+/**
+ * @const
+ * @enum {number}
+ */
+var TEXT_ALIGN = {
+ 'left': 0,
+ 'end': 0,
+ 'center': 0.5,
+ 'right': 1,
+ 'start': 1,
+ 'top': 0,
+ 'middle': 0.5,
+ 'hanging': 0.2,
+ 'alphabetic': 0.8,
+ 'ideographic': 0.8,
+ 'bottom': 1
+};
+exports.TEXT_ALIGN = TEXT_ALIGN;
+
+var CanvasTextBuilder =
+/** @class */
+function (_super) {
+ __extends(CanvasTextBuilder, _super);
+ /**
+ * @param {number} tolerance Tolerance.
+ * @param {import("../../extent.js").Extent} maxExtent Maximum extent.
+ * @param {number} resolution Resolution.
+ * @param {number} pixelRatio Pixel ratio.
+ */
+
+
+ function CanvasTextBuilder(tolerance, maxExtent, resolution, pixelRatio) {
+ var _this = _super.call(this, tolerance, maxExtent, resolution, pixelRatio) || this;
+ /**
+ * @private
+ * @type {import("../canvas.js").DeclutterGroups}
+ */
+
+
+ _this.declutterGroups_;
+ /**
+ * @private
+ * @type {Array<HTMLCanvasElement>}
+ */
+
+ _this.labels_ = null;
+ /**
+ * @private
+ * @type {string}
+ */
+
+ _this.text_ = '';
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.textOffsetX_ = 0;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.textOffsetY_ = 0;
+ /**
+ * @private
+ * @type {boolean|undefined}
+ */
+
+ _this.textRotateWithView_ = undefined;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.textRotation_ = 0;
+ /**
+ * @private
+ * @type {?import("../canvas.js").FillState}
+ */
+
+ _this.textFillState_ = null;
+ /**
+ * @type {!Object<string, import("../canvas.js").FillState>}
+ */
+
+ _this.fillStates = {};
+ /**
+ * @private
+ * @type {?import("../canvas.js").StrokeState}
+ */
+
+ _this.textStrokeState_ = null;
+ /**
+ * @type {!Object<string, import("../canvas.js").StrokeState>}
+ */
+
+ _this.strokeStates = {};
+ /**
+ * @private
+ * @type {import("../canvas.js").TextState}
+ */
+
+ _this.textState_ =
+ /** @type {import("../canvas.js").TextState} */
+ {};
+ /**
+ * @type {!Object<string, import("../canvas.js").TextState>}
+ */
+
+ _this.textStates = {};
+ /**
+ * @private
+ * @type {string}
+ */
+
+ _this.textKey_ = '';
+ /**
+ * @private
+ * @type {string}
+ */
+
+ _this.fillKey_ = '';
+ /**
+ * @private
+ * @type {string}
+ */
+
+ _this.strokeKey_ = '';
+ return _this;
+ }
+ /**
+ * @return {import("./Builder.js").SerializableInstructions} the serializable instructions.
+ */
+
+
+ CanvasTextBuilder.prototype.finish = function () {
+ var instructions = _super.prototype.finish.call(this);
+
+ instructions.textStates = this.textStates;
+ instructions.fillStates = this.fillStates;
+ instructions.strokeStates = this.strokeStates;
+ return instructions;
+ };
+ /**
+ * @param {import("../../geom/SimpleGeometry.js").default|import("../Feature.js").default} geometry Geometry.
+ * @param {import("../../Feature.js").FeatureLike} feature Feature.
+ */
+
+
+ CanvasTextBuilder.prototype.drawText = function (geometry, feature) {
+ var fillState = this.textFillState_;
+ var strokeState = this.textStrokeState_;
+ var textState = this.textState_;
+
+ if (this.text_ === '' || !textState || !fillState && !strokeState) {
+ return;
+ }
+
+ var begin = this.coordinates.length;
+ var geometryType = geometry.getType();
+ var flatCoordinates = null;
+ var end = 2;
+ var stride = geometry.getStride();
+ var i, ii;
+
+ if (textState.placement === _TextPlacement.default.LINE) {
+ if (!(0, _extent.intersects)(this.getBufferedMaxExtent(), geometry.getExtent())) {
+ return;
+ }
+
+ var ends = void 0;
+ flatCoordinates = geometry.getFlatCoordinates();
+
+ if (geometryType == _GeometryType.default.LINE_STRING) {
+ ends = [flatCoordinates.length];
+ } else if (geometryType == _GeometryType.default.MULTI_LINE_STRING) {
+ ends =
+ /** @type {import("../../geom/MultiLineString.js").default} */
+ geometry.getEnds();
+ } else if (geometryType == _GeometryType.default.POLYGON) {
+ ends =
+ /** @type {import("../../geom/Polygon.js").default} */
+ geometry.getEnds().slice(0, 1);
+ } else if (geometryType == _GeometryType.default.MULTI_POLYGON) {
+ var endss =
+ /** @type {import("../../geom/MultiPolygon.js").default} */
+ geometry.getEndss();
+ ends = [];
+
+ for (i = 0, ii = endss.length; i < ii; ++i) {
+ ends.push(endss[i][0]);
+ }
+ }
+
+ this.beginGeometry(geometry, feature);
+ var textAlign = textState.textAlign;
+ var flatOffset = 0;
+ var flatEnd = void 0;
+
+ for (var o = 0, oo = ends.length; o < oo; ++o) {
+ if (textAlign == undefined) {
+ var range = (0, _straightchunk.matchingChunk)(textState.maxAngle, flatCoordinates, flatOffset, ends[o], stride);
+ flatOffset = range[0];
+ flatEnd = range[1];
+ } else {
+ flatEnd = ends[o];
+ }
+
+ for (i = flatOffset; i < flatEnd; i += stride) {
+ this.coordinates.push(flatCoordinates[i], flatCoordinates[i + 1]);
+ }
+
+ end = this.coordinates.length;
+ flatOffset = ends[o];
+ var declutterGroup = this.declutterGroups_ ? o === 0 ? this.declutterGroups_[0] : [].concat(this.declutterGroups_[0]) : null;
+ this.drawChars_(begin, end, declutterGroup);
+ begin = end;
+ }
+
+ this.endGeometry(feature);
+ } else {
+ var geometryWidths = null;
+
+ if (!textState.overflow) {
+ geometryWidths = [];
+ }
+
+ switch (geometryType) {
+ case _GeometryType.default.POINT:
+ case _GeometryType.default.MULTI_POINT:
+ flatCoordinates =
+ /** @type {import("../../geom/MultiPoint.js").default} */
+ geometry.getFlatCoordinates();
+ end = flatCoordinates.length;
+ break;
+
+ case _GeometryType.default.LINE_STRING:
+ flatCoordinates =
+ /** @type {import("../../geom/LineString.js").default} */
+ geometry.getFlatMidpoint();
+ break;
+
+ case _GeometryType.default.CIRCLE:
+ flatCoordinates =
+ /** @type {import("../../geom/Circle.js").default} */
+ geometry.getCenter();
+ break;
+
+ case _GeometryType.default.MULTI_LINE_STRING:
+ flatCoordinates =
+ /** @type {import("../../geom/MultiLineString.js").default} */
+ geometry.getFlatMidpoints();
+ stride = 2;
+ end = flatCoordinates.length;
+ break;
+
+ case _GeometryType.default.POLYGON:
+ flatCoordinates =
+ /** @type {import("../../geom/Polygon.js").default} */
+ geometry.getFlatInteriorPoint();
+
+ if (!textState.overflow) {
+ geometryWidths.push(flatCoordinates[2] / this.resolution);
+ }
+
+ stride = 3;
+ break;
+
+ case _GeometryType.default.MULTI_POLYGON:
+ var interiorPoints =
+ /** @type {import("../../geom/MultiPolygon.js").default} */
+ geometry.getFlatInteriorPoints();
+ flatCoordinates = [];
+
+ for (i = 0, ii = interiorPoints.length; i < ii; i += 3) {
+ if (!textState.overflow) {
+ geometryWidths.push(interiorPoints[i + 2] / this.resolution);
+ }
+
+ flatCoordinates.push(interiorPoints[i], interiorPoints[i + 1]);
+ }
+
+ stride = 2;
+ end = flatCoordinates.length;
+
+ if (end == 0) {
+ return;
+ }
+
+ break;
+
+ default:
+ }
+
+ end = this.appendFlatCoordinates(flatCoordinates, 0, end, stride, false, false);
+ this.saveTextStates_();
+
+ if (textState.backgroundFill || textState.backgroundStroke) {
+ this.setFillStrokeStyle(textState.backgroundFill, textState.backgroundStroke);
+
+ if (textState.backgroundFill) {
+ this.updateFillStyle(this.state, this.createFill);
+ this.hitDetectionInstructions.push(this.createFill(this.state));
+ }
+
+ if (textState.backgroundStroke) {
+ this.updateStrokeStyle(this.state, this.applyStroke);
+ this.hitDetectionInstructions.push(this.createStroke(this.state));
+ }
+ }
+
+ this.beginGeometry(geometry, feature); // adjust padding for negative scale
+
+ var padding = textState.padding;
+
+ if (padding != _canvas.defaultPadding && (textState.scale[0] < 0 || textState.scale[1] < 0)) {
+ var p0 = textState.padding[0];
+ var p1 = textState.padding[1];
+ var p2 = textState.padding[2];
+ var p3 = textState.padding[3];
+
+ if (textState.scale[0] < 0) {
+ p1 = -p1;
+ p3 = -p3;
+ }
+
+ if (textState.scale[1] < 0) {
+ p0 = -p0;
+ p2 = -p2;
+ }
+
+ padding = [p0, p1, p2, p3];
+ } // The image is unknown at this stage so we pass null; it will be computed at render time.
+ // For clarity, we pass NaN for offsetX, offsetY, width and height, which will be computed at
+ // render time.
+
+
+ var pixelRatio_1 = this.pixelRatio;
+ this.instructions.push([_Instruction.default.DRAW_IMAGE, begin, end, null, NaN, NaN, this.declutterGroups_, NaN, 1, 0, 0, this.textRotateWithView_, this.textRotation_, [1, 1], NaN, padding == _canvas.defaultPadding ? _canvas.defaultPadding : padding.map(function (p) {
+ return p * pixelRatio_1;
+ }), !!textState.backgroundFill, !!textState.backgroundStroke, this.text_, this.textKey_, this.strokeKey_, this.fillKey_, this.textOffsetX_, this.textOffsetY_, geometryWidths]);
+ var scale = 1 / pixelRatio_1;
+ this.hitDetectionInstructions.push([_Instruction.default.DRAW_IMAGE, begin, end, null, NaN, NaN, this.declutterGroups_, NaN, 1, 0, 0, this.textRotateWithView_, this.textRotation_, [scale, scale], NaN, padding, !!textState.backgroundFill, !!textState.backgroundStroke, this.text_, this.textKey_, this.strokeKey_, this.fillKey_, this.textOffsetX_, this.textOffsetY_, geometryWidths]);
+ this.endGeometry(feature);
+ }
+ };
+ /**
+ * @private
+ */
+
+
+ CanvasTextBuilder.prototype.saveTextStates_ = function () {
+ var strokeState = this.textStrokeState_;
+ var textState = this.textState_;
+ var fillState = this.textFillState_;
+ var strokeKey = this.strokeKey_;
+
+ if (strokeState) {
+ if (!(strokeKey in this.strokeStates)) {
+ this.strokeStates[strokeKey] = {
+ strokeStyle: strokeState.strokeStyle,
+ lineCap: strokeState.lineCap,
+ lineDashOffset: strokeState.lineDashOffset,
+ lineWidth: strokeState.lineWidth,
+ lineJoin: strokeState.lineJoin,
+ miterLimit: strokeState.miterLimit,
+ lineDash: strokeState.lineDash
+ };
+ }
+ }
+
+ var textKey = this.textKey_;
+
+ if (!(textKey in this.textStates)) {
+ this.textStates[textKey] = {
+ font: textState.font,
+ textAlign: textState.textAlign || _canvas.defaultTextAlign,
+ textBaseline: textState.textBaseline || _canvas.defaultTextBaseline,
+ scale: textState.scale
+ };
+ }
+
+ var fillKey = this.fillKey_;
+
+ if (fillState) {
+ if (!(fillKey in this.fillStates)) {
+ this.fillStates[fillKey] = {
+ fillStyle: fillState.fillStyle
+ };
+ }
+ }
+ };
+ /**
+ * @private
+ * @param {number} begin Begin.
+ * @param {number} end End.
+ * @param {import("../canvas.js").DeclutterGroup} declutterGroup Declutter group.
+ */
+
+
+ CanvasTextBuilder.prototype.drawChars_ = function (begin, end, declutterGroup) {
+ var strokeState = this.textStrokeState_;
+ var textState = this.textState_;
+ var strokeKey = this.strokeKey_;
+ var textKey = this.textKey_;
+ var fillKey = this.fillKey_;
+ this.saveTextStates_();
+ var pixelRatio = this.pixelRatio;
+ var baseline = TEXT_ALIGN[textState.textBaseline];
+ var offsetY = this.textOffsetY_ * pixelRatio;
+ var text = this.text_;
+ var strokeWidth = strokeState ? strokeState.lineWidth * Math.abs(textState.scale[0]) / 2 : 0;
+ this.instructions.push([_Instruction.default.DRAW_CHARS, begin, end, baseline, declutterGroup, textState.overflow, fillKey, textState.maxAngle, pixelRatio, offsetY, strokeKey, strokeWidth * pixelRatio, text, textKey, 1]);
+ this.hitDetectionInstructions.push([_Instruction.default.DRAW_CHARS, begin, end, baseline, declutterGroup, textState.overflow, fillKey, textState.maxAngle, 1, offsetY, strokeKey, strokeWidth, text, textKey, 1 / pixelRatio]);
+ };
+ /**
+ * @param {import("../../style/Text.js").default} textStyle Text style.
+ * @param {import("../canvas.js").DeclutterGroups} declutterGroups Declutter.
+ */
+
+
+ CanvasTextBuilder.prototype.setTextStyle = function (textStyle, declutterGroups) {
+ var textState, fillState, strokeState;
+
+ if (!textStyle) {
+ this.text_ = '';
+ } else {
+ this.declutterGroups_ = declutterGroups;
+ var textFillStyle = textStyle.getFill();
+
+ if (!textFillStyle) {
+ fillState = null;
+ this.textFillState_ = fillState;
+ } else {
+ fillState = this.textFillState_;
+
+ if (!fillState) {
+ fillState =
+ /** @type {import("../canvas.js").FillState} */
+ {};
+ this.textFillState_ = fillState;
+ }
+
+ fillState.fillStyle = (0, _colorlike.asColorLike)(textFillStyle.getColor() || _canvas.defaultFillStyle);
+ }
+
+ var textStrokeStyle = textStyle.getStroke();
+
+ if (!textStrokeStyle) {
+ strokeState = null;
+ this.textStrokeState_ = strokeState;
+ } else {
+ strokeState = this.textStrokeState_;
+
+ if (!strokeState) {
+ strokeState =
+ /** @type {import("../canvas.js").StrokeState} */
+ {};
+ this.textStrokeState_ = strokeState;
+ }
+
+ var lineDash = textStrokeStyle.getLineDash();
+ var lineDashOffset = textStrokeStyle.getLineDashOffset();
+ var lineWidth = textStrokeStyle.getWidth();
+ var miterLimit = textStrokeStyle.getMiterLimit();
+ strokeState.lineCap = textStrokeStyle.getLineCap() || _canvas.defaultLineCap;
+ strokeState.lineDash = lineDash ? lineDash.slice() : _canvas.defaultLineDash;
+ strokeState.lineDashOffset = lineDashOffset === undefined ? _canvas.defaultLineDashOffset : lineDashOffset;
+ strokeState.lineJoin = textStrokeStyle.getLineJoin() || _canvas.defaultLineJoin;
+ strokeState.lineWidth = lineWidth === undefined ? _canvas.defaultLineWidth : lineWidth;
+ strokeState.miterLimit = miterLimit === undefined ? _canvas.defaultMiterLimit : miterLimit;
+ strokeState.strokeStyle = (0, _colorlike.asColorLike)(textStrokeStyle.getColor() || _canvas.defaultStrokeStyle);
+ }
+
+ textState = this.textState_;
+
+ var font = textStyle.getFont() || _canvas.defaultFont;
+
+ (0, _canvas.registerFont)(font);
+ var textScale = textStyle.getScaleArray();
+ textState.overflow = textStyle.getOverflow();
+ textState.font = font;
+ textState.maxAngle = textStyle.getMaxAngle();
+ textState.placement = textStyle.getPlacement();
+ textState.textAlign = textStyle.getTextAlign();
+ textState.textBaseline = textStyle.getTextBaseline() || _canvas.defaultTextBaseline;
+ textState.backgroundFill = textStyle.getBackgroundFill();
+ textState.backgroundStroke = textStyle.getBackgroundStroke();
+ textState.padding = textStyle.getPadding() || _canvas.defaultPadding;
+ textState.scale = textScale === undefined ? [1, 1] : textScale;
+ var textOffsetX = textStyle.getOffsetX();
+ var textOffsetY = textStyle.getOffsetY();
+ var textRotateWithView = textStyle.getRotateWithView();
+ var textRotation = textStyle.getRotation();
+ this.text_ = textStyle.getText() || '';
+ this.textOffsetX_ = textOffsetX === undefined ? 0 : textOffsetX;
+ this.textOffsetY_ = textOffsetY === undefined ? 0 : textOffsetY;
+ this.textRotateWithView_ = textRotateWithView === undefined ? false : textRotateWithView;
+ this.textRotation_ = textRotation === undefined ? 0 : textRotation;
+ this.strokeKey_ = strokeState ? (typeof strokeState.strokeStyle == 'string' ? strokeState.strokeStyle : (0, _util.getUid)(strokeState.strokeStyle)) + strokeState.lineCap + strokeState.lineDashOffset + '|' + strokeState.lineWidth + strokeState.lineJoin + strokeState.miterLimit + '[' + strokeState.lineDash.join() + ']' : '';
+ this.textKey_ = textState.font + textState.scale + (textState.textAlign || '?') + (textState.textBaseline || '?');
+ this.fillKey_ = fillState ? typeof fillState.fillStyle == 'string' ? fillState.fillStyle : '|' + (0, _util.getUid)(fillState.fillStyle) : '';
+ }
+ };
+
+ return CanvasTextBuilder;
+}(_Builder.default);
+
+var _default = CanvasTextBuilder;
+exports.default = _default;
+},{"./Builder.js":"../../../node_modules/ol/render/canvas/Builder.js","./Instruction.js":"../../../node_modules/ol/render/canvas/Instruction.js","../../geom/GeometryType.js":"../../../node_modules/ol/geom/GeometryType.js","../../style/TextPlacement.js":"../../../node_modules/ol/style/TextPlacement.js","../../colorlike.js":"../../../node_modules/ol/colorlike.js","../canvas.js":"../../../node_modules/ol/render/canvas.js","../../util.js":"../../../node_modules/ol/util.js","../../extent.js":"../../../node_modules/ol/extent.js","../../geom/flat/straightchunk.js":"../../../node_modules/ol/geom/flat/straightchunk.js"}],"../../../node_modules/ol/render/canvas/BuilderGroup.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Builder = _interopRequireDefault(require("./Builder.js"));
+
+var _ImageBuilder = _interopRequireDefault(require("./ImageBuilder.js"));
+
+var _LineStringBuilder = _interopRequireDefault(require("./LineStringBuilder.js"));
+
+var _PolygonBuilder = _interopRequireDefault(require("./PolygonBuilder.js"));
+
+var _TextBuilder = _interopRequireDefault(require("./TextBuilder.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module ol/render/canvas/BuilderGroup
+ */
+
+/**
+ * @type {Object<import("./BuilderType").default, typeof Builder>}
+ */
+var BATCH_CONSTRUCTORS = {
+ 'Circle': _PolygonBuilder.default,
+ 'Default': _Builder.default,
+ 'Image': _ImageBuilder.default,
+ 'LineString': _LineStringBuilder.default,
+ 'Polygon': _PolygonBuilder.default,
+ 'Text': _TextBuilder.default
+};
+
+var BuilderGroup =
+/** @class */
+function () {
+ /**
+ * @param {number} tolerance Tolerance.
+ * @param {import("../../extent.js").Extent} maxExtent Max extent.
+ * @param {number} resolution Resolution.
+ * @param {number} pixelRatio Pixel ratio.
+ * @param {boolean} declutter Decluttering enabled.
+ */
+ function BuilderGroup(tolerance, maxExtent, resolution, pixelRatio, declutter) {
+ /**
+ * @type {boolean}
+ * @private
+ */
+ this.declutter_ = declutter;
+ /**
+ * @type {import("../canvas.js").DeclutterGroups}
+ * @private
+ */
+
+ this.declutterGroups_ = null;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ this.tolerance_ = tolerance;
+ /**
+ * @private
+ * @type {import("../../extent.js").Extent}
+ */
+
+ this.maxExtent_ = maxExtent;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ this.pixelRatio_ = pixelRatio;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ this.resolution_ = resolution;
+ /**
+ * @private
+ * @type {!Object<string, !Object<import("./BuilderType").default, Builder>>}
+ */
+
+ this.buildersByZIndex_ = {};
+ }
+ /**
+ * @param {boolean} group Group with previous builder.
+ * @return {import("../canvas").DeclutterGroups} The resulting instruction groups.
+ */
+
+
+ BuilderGroup.prototype.addDeclutter = function (group) {
+ /** @type {Array<*>} */
+ var declutter = null;
+
+ if (this.declutter_) {
+ if (group) {
+ declutter = this.declutterGroups_;
+ /** @type {number} */
+
+ declutter[0][0]++;
+ } else {
+ declutter = [[1]];
+ this.declutterGroups_ = declutter;
+ }
+ }
+
+ return declutter;
+ };
+ /**
+ * @return {!Object<string, !Object<import("./BuilderType").default, import("./Builder.js").SerializableInstructions>>} The serializable instructions
+ */
+
+
+ BuilderGroup.prototype.finish = function () {
+ var builderInstructions = {};
+
+ for (var zKey in this.buildersByZIndex_) {
+ builderInstructions[zKey] = builderInstructions[zKey] || {};
+ var builders = this.buildersByZIndex_[zKey];
+
+ for (var builderKey in builders) {
+ var builderInstruction = builders[builderKey].finish();
+ builderInstructions[zKey][builderKey] = builderInstruction;
+ }
+ }
+
+ return builderInstructions;
+ };
+ /**
+ * @param {number|undefined} zIndex Z index.
+ * @param {import("./BuilderType.js").default} builderType Replay type.
+ * @return {import("../VectorContext.js").default} Replay.
+ */
+
+
+ BuilderGroup.prototype.getBuilder = function (zIndex, builderType) {
+ var zIndexKey = zIndex !== undefined ? zIndex.toString() : '0';
+ var replays = this.buildersByZIndex_[zIndexKey];
+
+ if (replays === undefined) {
+ replays = {};
+ this.buildersByZIndex_[zIndexKey] = replays;
+ }
+
+ var replay = replays[builderType];
+
+ if (replay === undefined) {
+ var Constructor = BATCH_CONSTRUCTORS[builderType];
+ replay = new Constructor(this.tolerance_, this.maxExtent_, this.resolution_, this.pixelRatio_);
+ replays[builderType] = replay;
+ }
+
+ return replay;
+ };
+
+ return BuilderGroup;
+}();
+
+var _default = BuilderGroup;
+exports.default = _default;
+},{"./Builder.js":"../../../node_modules/ol/render/canvas/Builder.js","./ImageBuilder.js":"../../../node_modules/ol/render/canvas/ImageBuilder.js","./LineStringBuilder.js":"../../../node_modules/ol/render/canvas/LineStringBuilder.js","./PolygonBuilder.js":"../../../node_modules/ol/render/canvas/PolygonBuilder.js","./TextBuilder.js":"../../../node_modules/ol/render/canvas/TextBuilder.js"}],"../../../node_modules/ol/renderer/Layer.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _EventType = _interopRequireDefault(require("../events/EventType.js"));
+
+var _ImageState = _interopRequireDefault(require("../ImageState.js"));
+
+var _Observable = _interopRequireDefault(require("../Observable.js"));
+
+var _State = _interopRequireDefault(require("../source/State.js"));
+
+var _util = require("../util.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/renderer/Layer
+ */
+
+
+/**
+ * @template {import("../layer/Layer.js").default} LayerType
+ */
+var LayerRenderer =
+/** @class */
+function (_super) {
+ __extends(LayerRenderer, _super);
+ /**
+ * @param {LayerType} layer Layer.
+ */
+
+
+ function LayerRenderer(layer) {
+ var _this = _super.call(this) || this;
+ /** @private */
+
+
+ _this.boundHandleImageChange_ = _this.handleImageChange_.bind(_this);
+ /**
+ * @protected
+ * @type {LayerType}
+ */
+
+ _this.layer_ = layer;
+ return _this;
+ }
+ /**
+ * Asynchronous layer level hit detection.
+ * @param {import("../pixel.js").Pixel} pixel Pixel.
+ * @return {Promise<Array<import("../Feature").default>>} Promise that resolves with
+ * an array of features.
+ */
+
+
+ LayerRenderer.prototype.getFeatures = function (pixel) {
+ return (0, _util.abstract)();
+ };
+ /**
+ * Determine whether render should be called.
+ * @abstract
+ * @param {import("../PluggableMap.js").FrameState} frameState Frame state.
+ * @return {boolean} Layer is ready to be rendered.
+ */
+
+
+ LayerRenderer.prototype.prepareFrame = function (frameState) {
+ return (0, _util.abstract)();
+ };
+ /**
+ * Render the layer.
+ * @abstract
+ * @param {import("../PluggableMap.js").FrameState} frameState Frame state.
+ * @param {HTMLElement} target Target that may be used to render content to.
+ * @return {HTMLElement} The rendered element.
+ */
+
+
+ LayerRenderer.prototype.renderFrame = function (frameState, target) {
+ return (0, _util.abstract)();
+ };
+ /**
+ * @param {Object<number, Object<string, import("../Tile.js").default>>} tiles Lookup of loaded tiles by zoom level.
+ * @param {number} zoom Zoom level.
+ * @param {import("../Tile.js").default} tile Tile.
+ * @return {boolean|void} If `false`, the tile will not be considered loaded.
+ */
+
+
+ LayerRenderer.prototype.loadedTileCallback = function (tiles, zoom, tile) {
+ if (!tiles[zoom]) {
+ tiles[zoom] = {};
+ }
+
+ tiles[zoom][tile.tileCoord.toString()] = tile;
+ return undefined;
+ };
+ /**
+ * Create a function that adds loaded tiles to the tile lookup.
+ * @param {import("../source/Tile.js").default} source Tile source.
+ * @param {import("../proj/Projection.js").default} projection Projection of the tiles.
+ * @param {Object<number, Object<string, import("../Tile.js").default>>} tiles Lookup of loaded tiles by zoom level.
+ * @return {function(number, import("../TileRange.js").default):boolean} A function that can be
+ * called with a zoom level and a tile range to add loaded tiles to the lookup.
+ * @protected
+ */
+
+
+ LayerRenderer.prototype.createLoadedTileFinder = function (source, projection, tiles) {
+ return (
+ /**
+ * @param {number} zoom Zoom level.
+ * @param {import("../TileRange.js").default} tileRange Tile range.
+ * @return {boolean} The tile range is fully loaded.
+ * @this {LayerRenderer}
+ */
+ function (zoom, tileRange) {
+ var callback = this.loadedTileCallback.bind(this, tiles, zoom);
+ return source.forEachLoadedTile(projection, zoom, tileRange, callback);
+ }.bind(this)
+ );
+ };
+ /**
+ * @abstract
+ * @param {import("../coordinate.js").Coordinate} coordinate Coordinate.
+ * @param {import("../PluggableMap.js").FrameState} frameState Frame state.
+ * @param {number} hitTolerance Hit tolerance in pixels.
+ * @param {function(import("../Feature.js").FeatureLike, import("../layer/Layer.js").default): T} callback Feature callback.
+ * @param {Array<import("../Feature.js").FeatureLike>} declutteredFeatures Decluttered features.
+ * @return {T|void} Callback result.
+ * @template T
+ */
+
+
+ LayerRenderer.prototype.forEachFeatureAtCoordinate = function (coordinate, frameState, hitTolerance, callback, declutteredFeatures) {};
+ /**
+ * @abstract
+ * @param {import("../pixel.js").Pixel} pixel Pixel.
+ * @param {import("../PluggableMap.js").FrameState} frameState FrameState.
+ * @param {number} hitTolerance Hit tolerance in pixels.
+ * @return {Uint8ClampedArray|Uint8Array} The result. If there is no data at the pixel
+ * location, null will be returned. If there is data, but pixel values cannot be
+ * returned, and empty array will be returned.
+ */
+
+
+ LayerRenderer.prototype.getDataAtPixel = function (pixel, frameState, hitTolerance) {
+ return (0, _util.abstract)();
+ };
+ /**
+ * @return {LayerType} Layer.
+ */
+
+
+ LayerRenderer.prototype.getLayer = function () {
+ return this.layer_;
+ };
+ /**
+ * Perform action necessary to get the layer rendered after new fonts have loaded
+ * @abstract
+ */
+
+
+ LayerRenderer.prototype.handleFontsChanged = function () {};
+ /**
+ * Handle changes in image state.
+ * @param {import("../events/Event.js").default} event Image change event.
+ * @private
+ */
+
+
+ LayerRenderer.prototype.handleImageChange_ = function (event) {
+ var image =
+ /** @type {import("../Image.js").default} */
+ event.target;
+
+ if (image.getState() === _ImageState.default.LOADED) {
+ this.renderIfReadyAndVisible();
+ }
+ };
+ /**
+ * Load the image if not already loaded, and register the image change
+ * listener if needed.
+ * @param {import("../ImageBase.js").default} image Image.
+ * @return {boolean} `true` if the image is already loaded, `false` otherwise.
+ * @protected
+ */
+
+
+ LayerRenderer.prototype.loadImage = function (image) {
+ var imageState = image.getState();
+
+ if (imageState != _ImageState.default.LOADED && imageState != _ImageState.default.ERROR) {
+ image.addEventListener(_EventType.default.CHANGE, this.boundHandleImageChange_);
+ }
+
+ if (imageState == _ImageState.default.IDLE) {
+ image.load();
+ imageState = image.getState();
+ }
+
+ return imageState == _ImageState.default.LOADED;
+ };
+ /**
+ * @protected
+ */
+
+
+ LayerRenderer.prototype.renderIfReadyAndVisible = function () {
+ var layer = this.getLayer();
+
+ if (layer.getVisible() && layer.getSourceState() == _State.default.READY) {
+ layer.changed();
+ }
+ };
+
+ return LayerRenderer;
+}(_Observable.default);
+
+var _default = LayerRenderer;
+exports.default = _default;
+},{"../events/EventType.js":"../../../node_modules/ol/events/EventType.js","../ImageState.js":"../../../node_modules/ol/ImageState.js","../Observable.js":"../../../node_modules/ol/Observable.js","../source/State.js":"../../../node_modules/ol/source/State.js","../util.js":"../../../node_modules/ol/util.js"}],"../../../node_modules/ol/render/Event.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Event = _interopRequireDefault(require("../events/Event.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module ol/render/Event
+ */
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+
+var RenderEvent =
+/** @class */
+function (_super) {
+ __extends(RenderEvent, _super);
+ /**
+ * @param {import("./EventType.js").default} type Type.
+ * @param {import("../transform.js").Transform=} opt_inversePixelTransform Transform for
+ * CSS pixels to rendered pixels.
+ * @param {import("../PluggableMap.js").FrameState=} opt_frameState Frame state.
+ * @param {?CanvasRenderingContext2D=} opt_context Context.
+ */
+
+
+ function RenderEvent(type, opt_inversePixelTransform, opt_frameState, opt_context) {
+ var _this = _super.call(this, type) || this;
+ /**
+ * Transform from CSS pixels (relative to the top-left corner of the map viewport)
+ * to rendered pixels on this event's `context`.
+ * @type {import("../transform.js").Transform|undefined}
+ * @api
+ */
+
+
+ _this.inversePixelTransform = opt_inversePixelTransform;
+ /**
+ * An object representing the current render frame state.
+ * @type {import("../PluggableMap.js").FrameState|undefined}
+ * @api
+ */
+
+ _this.frameState = opt_frameState;
+ /**
+ * Canvas context. Not available when the event is dispatched by the map. Only available
+ * when a Canvas renderer is used, null otherwise.
+ * @type {CanvasRenderingContext2D|null|undefined}
+ * @api
+ */
+
+ _this.context = opt_context;
+ return _this;
+ }
+
+ return RenderEvent;
+}(_Event.default);
+
+var _default = RenderEvent;
+exports.default = _default;
+},{"../events/Event.js":"../../../node_modules/ol/events/Event.js"}],"../../../node_modules/ol/renderer/canvas/Layer.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Layer = _interopRequireDefault(require("../Layer.js"));
+
+var _Event = _interopRequireDefault(require("../../render/Event.js"));
+
+var _EventType = _interopRequireDefault(require("../../render/EventType.js"));
+
+var _transform = require("../../transform.js");
+
+var _dom = require("../../dom.js");
+
+var _extent = require("../../extent.js");
+
+var _canvas = require("../../render/canvas.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/renderer/canvas/Layer
+ */
+
+
+/**
+ * @abstract
+ * @template {import("../../layer/Layer.js").default} LayerType
+ */
+var CanvasLayerRenderer =
+/** @class */
+function (_super) {
+ __extends(CanvasLayerRenderer, _super);
+ /**
+ * @param {LayerType} layer Layer.
+ */
+
+
+ function CanvasLayerRenderer(layer) {
+ var _this = _super.call(this, layer) || this;
+ /**
+ * @protected
+ * @type {HTMLElement}
+ */
+
+
+ _this.container = null;
+ /**
+ * @protected
+ * @type {number}
+ */
+
+ _this.renderedResolution;
+ /**
+ * A temporary transform. The values in this transform should only be used in a
+ * function that sets the values.
+ * @protected
+ * @type {import("../../transform.js").Transform}
+ */
+
+ _this.tempTransform = (0, _transform.create)();
+ /**
+ * The transform for rendered pixels to viewport CSS pixels. This transform must
+ * be set when rendering a frame and may be used by other functions after rendering.
+ * @protected
+ * @type {import("../../transform.js").Transform}
+ */
+
+ _this.pixelTransform = (0, _transform.create)();
+ /**
+ * The transform for viewport CSS pixels to rendered pixels. This transform must
+ * be set when rendering a frame and may be used by other functions after rendering.
+ * @protected
+ * @type {import("../../transform.js").Transform}
+ */
+
+ _this.inversePixelTransform = (0, _transform.create)();
+ /**
+ * @type {CanvasRenderingContext2D}
+ */
+
+ _this.context = null;
+ /**
+ * @type {boolean}
+ */
+
+ _this.containerReused = false;
+ return _this;
+ }
+ /**
+ * Get a rendering container from an existing target, if compatible.
+ * @param {HTMLElement} target Potential render target.
+ * @param {string} transform CSS Transform.
+ * @param {number} opacity Opacity.
+ */
+
+
+ CanvasLayerRenderer.prototype.useContainer = function (target, transform, opacity) {
+ var layerClassName = this.getLayer().getClassName();
+ var container, context;
+
+ if (target && target.style.opacity === '' && target.className === layerClassName) {
+ var canvas = target.firstElementChild;
+
+ if (canvas instanceof HTMLCanvasElement) {
+ context = canvas.getContext('2d');
+ }
+ }
+
+ if (context && (context.canvas.width === 0 || context.canvas.style.transform === transform)) {
+ // Container of the previous layer renderer can be used.
+ this.container = target;
+ this.context = context;
+ this.containerReused = true;
+ } else if (this.containerReused) {
+ // Previously reused container cannot be used any more.
+ this.container = null;
+ this.context = null;
+ this.containerReused = false;
+ }
+
+ if (!this.container) {
+ container = document.createElement('div');
+ container.className = layerClassName;
+ var style = container.style;
+ style.position = 'absolute';
+ style.width = '100%';
+ style.height = '100%';
+ context = (0, _dom.createCanvasContext2D)();
+ var canvas = context.canvas;
+ container.appendChild(canvas);
+ style = canvas.style;
+ style.position = 'absolute';
+ style.left = '0';
+ style.transformOrigin = 'top left';
+ this.container = container;
+ this.context = context;
+ }
+ };
+ /**
+ * @param {CanvasRenderingContext2D} context Context.
+ * @param {import("../../PluggableMap.js").FrameState} frameState Frame state.
+ * @param {import("../../extent.js").Extent} extent Clip extent.
+ * @protected
+ */
+
+
+ CanvasLayerRenderer.prototype.clip = function (context, frameState, extent) {
+ var pixelRatio = frameState.pixelRatio;
+ var halfWidth = frameState.size[0] * pixelRatio / 2;
+ var halfHeight = frameState.size[1] * pixelRatio / 2;
+ var rotation = frameState.viewState.rotation;
+ var topLeft = (0, _extent.getTopLeft)(extent);
+ var topRight = (0, _extent.getTopRight)(extent);
+ var bottomRight = (0, _extent.getBottomRight)(extent);
+ var bottomLeft = (0, _extent.getBottomLeft)(extent);
+ (0, _transform.apply)(frameState.coordinateToPixelTransform, topLeft);
+ (0, _transform.apply)(frameState.coordinateToPixelTransform, topRight);
+ (0, _transform.apply)(frameState.coordinateToPixelTransform, bottomRight);
+ (0, _transform.apply)(frameState.coordinateToPixelTransform, bottomLeft);
+ context.save();
+ (0, _canvas.rotateAtOffset)(context, -rotation, halfWidth, halfHeight);
+ context.beginPath();
+ context.moveTo(topLeft[0] * pixelRatio, topLeft[1] * pixelRatio);
+ context.lineTo(topRight[0] * pixelRatio, topRight[1] * pixelRatio);
+ context.lineTo(bottomRight[0] * pixelRatio, bottomRight[1] * pixelRatio);
+ context.lineTo(bottomLeft[0] * pixelRatio, bottomLeft[1] * pixelRatio);
+ context.clip();
+ (0, _canvas.rotateAtOffset)(context, rotation, halfWidth, halfHeight);
+ };
+ /**
+ * @param {CanvasRenderingContext2D} context Context.
+ * @param {import("../../PluggableMap.js").FrameState} frameState Frame state.
+ * @param {import("../../extent.js").Extent} extent Clip extent.
+ * @protected
+ */
+
+
+ CanvasLayerRenderer.prototype.clipUnrotated = function (context, frameState, extent) {
+ var topLeft = (0, _extent.getTopLeft)(extent);
+ var topRight = (0, _extent.getTopRight)(extent);
+ var bottomRight = (0, _extent.getBottomRight)(extent);
+ var bottomLeft = (0, _extent.getBottomLeft)(extent);
+ (0, _transform.apply)(frameState.coordinateToPixelTransform, topLeft);
+ (0, _transform.apply)(frameState.coordinateToPixelTransform, topRight);
+ (0, _transform.apply)(frameState.coordinateToPixelTransform, bottomRight);
+ (0, _transform.apply)(frameState.coordinateToPixelTransform, bottomLeft);
+ var inverted = this.inversePixelTransform;
+ (0, _transform.apply)(inverted, topLeft);
+ (0, _transform.apply)(inverted, topRight);
+ (0, _transform.apply)(inverted, bottomRight);
+ (0, _transform.apply)(inverted, bottomLeft);
+ context.save();
+ context.beginPath();
+ context.moveTo(Math.round(topLeft[0]), Math.round(topLeft[1]));
+ context.lineTo(Math.round(topRight[0]), Math.round(topRight[1]));
+ context.lineTo(Math.round(bottomRight[0]), Math.round(bottomRight[1]));
+ context.lineTo(Math.round(bottomLeft[0]), Math.round(bottomLeft[1]));
+ context.clip();
+ };
+ /**
+ * @param {import("../../render/EventType.js").default} type Event type.
+ * @param {CanvasRenderingContext2D} context Context.
+ * @param {import("../../PluggableMap.js").FrameState} frameState Frame state.
+ * @private
+ */
+
+
+ CanvasLayerRenderer.prototype.dispatchRenderEvent_ = function (type, context, frameState) {
+ var layer = this.getLayer();
+
+ if (layer.hasListener(type)) {
+ var event_1 = new _Event.default(type, this.inversePixelTransform, frameState, context);
+ layer.dispatchEvent(event_1);
+ }
+ };
+ /**
+ * @param {CanvasRenderingContext2D} context Context.
+ * @param {import("../../PluggableMap.js").FrameState} frameState Frame state.
+ * @protected
+ */
+
+
+ CanvasLayerRenderer.prototype.preRender = function (context, frameState) {
+ this.dispatchRenderEvent_(_EventType.default.PRERENDER, context, frameState);
+ };
+ /**
+ * @param {CanvasRenderingContext2D} context Context.
+ * @param {import("../../PluggableMap.js").FrameState} frameState Frame state.
+ * @protected
+ */
+
+
+ CanvasLayerRenderer.prototype.postRender = function (context, frameState) {
+ this.dispatchRenderEvent_(_EventType.default.POSTRENDER, context, frameState);
+ };
+ /**
+ * Creates a transform for rendering to an element that will be rotated after rendering.
+ * @param {import("../../coordinate.js").Coordinate} center Center.
+ * @param {number} resolution Resolution.
+ * @param {number} rotation Rotation.
+ * @param {number} pixelRatio Pixel ratio.
+ * @param {number} width Width of the rendered element (in pixels).
+ * @param {number} height Height of the rendered element (in pixels).
+ * @param {number} offsetX Offset on the x-axis in view coordinates.
+ * @protected
+ * @return {!import("../../transform.js").Transform} Transform.
+ */
+
+
+ CanvasLayerRenderer.prototype.getRenderTransform = function (center, resolution, rotation, pixelRatio, width, height, offsetX) {
+ var dx1 = width / 2;
+ var dy1 = height / 2;
+ var sx = pixelRatio / resolution;
+ var sy = -sx;
+ var dx2 = -center[0] + offsetX;
+ var dy2 = -center[1];
+ return (0, _transform.compose)(this.tempTransform, dx1, dy1, sx, sy, -rotation, dx2, dy2);
+ };
+ /**
+ * @param {import("../../pixel.js").Pixel} pixel Pixel.
+ * @param {import("../../PluggableMap.js").FrameState} frameState FrameState.
+ * @param {number} hitTolerance Hit tolerance in pixels.
+ * @return {Uint8ClampedArray|Uint8Array} The result. If there is no data at the pixel
+ * location, null will be returned. If there is data, but pixel values cannot be
+ * returned, and empty array will be returned.
+ */
+
+
+ CanvasLayerRenderer.prototype.getDataAtPixel = function (pixel, frameState, hitTolerance) {
+ var renderPixel = (0, _transform.apply)(this.inversePixelTransform, pixel.slice());
+ var context = this.context;
+ var data;
+
+ try {
+ var x = Math.round(renderPixel[0]);
+ var y = Math.round(renderPixel[1]);
+ var newCanvas = document.createElement('canvas');
+ var newContext = newCanvas.getContext('2d');
+ newCanvas.width = 1;
+ newCanvas.height = 1;
+ newContext.clearRect(0, 0, 1, 1);
+ newContext.drawImage(context.canvas, x, y, 1, 1, 0, 0, 1, 1);
+ data = newContext.getImageData(0, 0, 1, 1).data;
+ } catch (err) {
+ if (err.name === 'SecurityError') {
+ // tainted canvas, we assume there is data at the given pixel (although there might not be)
+ return new Uint8Array();
+ }
+
+ return data;
+ }
+
+ if (data[3] === 0) {
+ return null;
+ }
+
+ return data;
+ };
+
+ return CanvasLayerRenderer;
+}(_Layer.default);
+
+var _default = CanvasLayerRenderer;
+exports.default = _default;
+},{"../Layer.js":"../../../node_modules/ol/renderer/Layer.js","../../render/Event.js":"../../../node_modules/ol/render/Event.js","../../render/EventType.js":"../../../node_modules/ol/render/EventType.js","../../transform.js":"../../../node_modules/ol/transform.js","../../dom.js":"../../../node_modules/ol/dom.js","../../extent.js":"../../../node_modules/ol/extent.js","../../render/canvas.js":"../../../node_modules/ol/render/canvas.js"}],"../../../node_modules/ol/render/canvas/BuilderType.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+/**
+ * @module ol/render/canvas/BuilderType
+ */
+
+/**
+ * @enum {string}
+ */
+var _default = {
+ CIRCLE: 'Circle',
+ DEFAULT: 'Default',
+ IMAGE: 'Image',
+ LINE_STRING: 'LineString',
+ POLYGON: 'Polygon',
+ TEXT: 'Text'
+};
+exports.default = _default;
+},{}],"../../../node_modules/rbush/rbush.js":[function(require,module,exports) {
+var define;
+var global = arguments[3];
+(function (global, factory) {
+typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+typeof define === 'function' && define.amd ? define(factory) :
+(global = global || self, global.RBush = factory());
+}(this, function () { 'use strict';
+
+function quickselect(arr, k, left, right, compare) {
+ quickselectStep(arr, k, left || 0, right || (arr.length - 1), compare || defaultCompare);
+}
+
+function quickselectStep(arr, k, left, right, compare) {
+
+ while (right > left) {
+ if (right - left > 600) {
+ var n = right - left + 1;
+ var m = k - left + 1;
+ var z = Math.log(n);
+ var s = 0.5 * Math.exp(2 * z / 3);
+ var sd = 0.5 * Math.sqrt(z * s * (n - s) / n) * (m - n / 2 < 0 ? -1 : 1);
+ var newLeft = Math.max(left, Math.floor(k - m * s / n + sd));
+ var newRight = Math.min(right, Math.floor(k + (n - m) * s / n + sd));
+ quickselectStep(arr, k, newLeft, newRight, compare);
+ }
+
+ var t = arr[k];
+ var i = left;
+ var j = right;
+
+ swap(arr, left, k);
+ if (compare(arr[right], t) > 0) { swap(arr, left, right); }
+
+ while (i < j) {
+ swap(arr, i, j);
+ i++;
+ j--;
+ while (compare(arr[i], t) < 0) { i++; }
+ while (compare(arr[j], t) > 0) { j--; }
+ }
+
+ if (compare(arr[left], t) === 0) { swap(arr, left, j); }
+ else {
+ j++;
+ swap(arr, j, right);
+ }
+
+ if (j <= k) { left = j + 1; }
+ if (k <= j) { right = j - 1; }
+ }
+}
+
+function swap(arr, i, j) {
+ var tmp = arr[i];
+ arr[i] = arr[j];
+ arr[j] = tmp;
+}
+
+function defaultCompare(a, b) {
+ return a < b ? -1 : a > b ? 1 : 0;
+}
+
+var RBush = function RBush(maxEntries) {
+ if ( maxEntries === void 0 ) maxEntries = 9;
+
+ // max entries in a node is 9 by default; min node fill is 40% for best performance
+ this._maxEntries = Math.max(4, maxEntries);
+ this._minEntries = Math.max(2, Math.ceil(this._maxEntries * 0.4));
+ this.clear();
+};
+
+RBush.prototype.all = function all () {
+ return this._all(this.data, []);
+};
+
+RBush.prototype.search = function search (bbox) {
+ var node = this.data;
+ var result = [];
+
+ if (!intersects(bbox, node)) { return result; }
+
+ var toBBox = this.toBBox;
+ var nodesToSearch = [];
+
+ while (node) {
+ for (var i = 0; i < node.children.length; i++) {
+ var child = node.children[i];
+ var childBBox = node.leaf ? toBBox(child) : child;
+
+ if (intersects(bbox, childBBox)) {
+ if (node.leaf) { result.push(child); }
+ else if (contains(bbox, childBBox)) { this._all(child, result); }
+ else { nodesToSearch.push(child); }
+ }
+ }
+ node = nodesToSearch.pop();
+ }
+
+ return result;
+};
+
+RBush.prototype.collides = function collides (bbox) {
+ var node = this.data;
+
+ if (!intersects(bbox, node)) { return false; }
+
+ var nodesToSearch = [];
+ while (node) {
+ for (var i = 0; i < node.children.length; i++) {
+ var child = node.children[i];
+ var childBBox = node.leaf ? this.toBBox(child) : child;
+
+ if (intersects(bbox, childBBox)) {
+ if (node.leaf || contains(bbox, childBBox)) { return true; }
+ nodesToSearch.push(child);
+ }
+ }
+ node = nodesToSearch.pop();
+ }
+
+ return false;
+};
+
+RBush.prototype.load = function load (data) {
+ if (!(data && data.length)) { return this; }
+
+ if (data.length < this._minEntries) {
+ for (var i = 0; i < data.length; i++) {
+ this.insert(data[i]);
+ }
+ return this;
+ }
+
+ // recursively build the tree with the given data from scratch using OMT algorithm
+ var node = this._build(data.slice(), 0, data.length - 1, 0);
+
+ if (!this.data.children.length) {
+ // save as is if tree is empty
+ this.data = node;
+
+ } else if (this.data.height === node.height) {
+ // split root if trees have the same height
+ this._splitRoot(this.data, node);
+
+ } else {
+ if (this.data.height < node.height) {
+ // swap trees if inserted one is bigger
+ var tmpNode = this.data;
+ this.data = node;
+ node = tmpNode;
+ }
+
+ // insert the small tree into the large tree at appropriate level
+ this._insert(node, this.data.height - node.height - 1, true);
+ }
+
+ return this;
+};
+
+RBush.prototype.insert = function insert (item) {
+ if (item) { this._insert(item, this.data.height - 1); }
+ return this;
+};
+
+RBush.prototype.clear = function clear () {
+ this.data = createNode([]);
+ return this;
+};
+
+RBush.prototype.remove = function remove (item, equalsFn) {
+ if (!item) { return this; }
+
+ var node = this.data;
+ var bbox = this.toBBox(item);
+ var path = [];
+ var indexes = [];
+ var i, parent, goingUp;
+
+ // depth-first iterative tree traversal
+ while (node || path.length) {
+
+ if (!node) { // go up
+ node = path.pop();
+ parent = path[path.length - 1];
+ i = indexes.pop();
+ goingUp = true;
+ }
+
+ if (node.leaf) { // check current node
+ var index = findItem(item, node.children, equalsFn);
+
+ if (index !== -1) {
+ // item found, remove the item and condense tree upwards
+ node.children.splice(index, 1);
+ path.push(node);
+ this._condense(path);
+ return this;
+ }
+ }
+
+ if (!goingUp && !node.leaf && contains(node, bbox)) { // go down
+ path.push(node);
+ indexes.push(i);
+ i = 0;
+ parent = node;
+ node = node.children[0];
+
+ } else if (parent) { // go right
+ i++;
+ node = parent.children[i];
+ goingUp = false;
+
+ } else { node = null; } // nothing found
+ }
+
+ return this;
+};
+
+RBush.prototype.toBBox = function toBBox (item) { return item; };
+
+RBush.prototype.compareMinX = function compareMinX (a, b) { return a.minX - b.minX; };
+RBush.prototype.compareMinY = function compareMinY (a, b) { return a.minY - b.minY; };
+
+RBush.prototype.toJSON = function toJSON () { return this.data; };
+
+RBush.prototype.fromJSON = function fromJSON (data) {
+ this.data = data;
+ return this;
+};
+
+RBush.prototype._all = function _all (node, result) {
+ var nodesToSearch = [];
+ while (node) {
+ if (node.leaf) { result.push.apply(result, node.children); }
+ else { nodesToSearch.push.apply(nodesToSearch, node.children); }
+
+ node = nodesToSearch.pop();
+ }
+ return result;
+};
+
+RBush.prototype._build = function _build (items, left, right, height) {
+
+ var N = right - left + 1;
+ var M = this._maxEntries;
+ var node;
+
+ if (N <= M) {
+ // reached leaf level; return leaf
+ node = createNode(items.slice(left, right + 1));
+ calcBBox(node, this.toBBox);
+ return node;
+ }
+
+ if (!height) {
+ // target height of the bulk-loaded tree
+ height = Math.ceil(Math.log(N) / Math.log(M));
+
+ // target number of root entries to maximize storage utilization
+ M = Math.ceil(N / Math.pow(M, height - 1));
+ }
+
+ node = createNode([]);
+ node.leaf = false;
+ node.height = height;
+
+ // split the items into M mostly square tiles
+
+ var N2 = Math.ceil(N / M);
+ var N1 = N2 * Math.ceil(Math.sqrt(M));
+
+ multiSelect(items, left, right, N1, this.compareMinX);
+
+ for (var i = left; i <= right; i += N1) {
+
+ var right2 = Math.min(i + N1 - 1, right);
+
+ multiSelect(items, i, right2, N2, this.compareMinY);
+
+ for (var j = i; j <= right2; j += N2) {
+
+ var right3 = Math.min(j + N2 - 1, right2);
+
+ // pack each entry recursively
+ node.children.push(this._build(items, j, right3, height - 1));
+ }
+ }
+
+ calcBBox(node, this.toBBox);
+
+ return node;
+};
+
+RBush.prototype._chooseSubtree = function _chooseSubtree (bbox, node, level, path) {
+ while (true) {
+ path.push(node);
+
+ if (node.leaf || path.length - 1 === level) { break; }
+
+ var minArea = Infinity;
+ var minEnlargement = Infinity;
+ var targetNode = (void 0);
+
+ for (var i = 0; i < node.children.length; i++) {
+ var child = node.children[i];
+ var area = bboxArea(child);
+ var enlargement = enlargedArea(bbox, child) - area;
+
+ // choose entry with the least area enlargement
+ if (enlargement < minEnlargement) {
+ minEnlargement = enlargement;
+ minArea = area < minArea ? area : minArea;
+ targetNode = child;
+
+ } else if (enlargement === minEnlargement) {
+ // otherwise choose one with the smallest area
+ if (area < minArea) {
+ minArea = area;
+ targetNode = child;
+ }
+ }
+ }
+
+ node = targetNode || node.children[0];
+ }
+
+ return node;
+};
+
+RBush.prototype._insert = function _insert (item, level, isNode) {
+ var bbox = isNode ? item : this.toBBox(item);
+ var insertPath = [];
+
+ // find the best node for accommodating the item, saving all nodes along the path too
+ var node = this._chooseSubtree(bbox, this.data, level, insertPath);
+
+ // put the item into the node
+ node.children.push(item);
+ extend(node, bbox);
+
+ // split on node overflow; propagate upwards if necessary
+ while (level >= 0) {
+ if (insertPath[level].children.length > this._maxEntries) {
+ this._split(insertPath, level);
+ level--;
+ } else { break; }
+ }
+
+ // adjust bboxes along the insertion path
+ this._adjustParentBBoxes(bbox, insertPath, level);
+};
+
+// split overflowed node into two
+RBush.prototype._split = function _split (insertPath, level) {
+ var node = insertPath[level];
+ var M = node.children.length;
+ var m = this._minEntries;
+
+ this._chooseSplitAxis(node, m, M);
+
+ var splitIndex = this._chooseSplitIndex(node, m, M);
+
+ var newNode = createNode(node.children.splice(splitIndex, node.children.length - splitIndex));
+ newNode.height = node.height;
+ newNode.leaf = node.leaf;
+
+ calcBBox(node, this.toBBox);
+ calcBBox(newNode, this.toBBox);
+
+ if (level) { insertPath[level - 1].children.push(newNode); }
+ else { this._splitRoot(node, newNode); }
+};
+
+RBush.prototype._splitRoot = function _splitRoot (node, newNode) {
+ // split root node
+ this.data = createNode([node, newNode]);
+ this.data.height = node.height + 1;
+ this.data.leaf = false;
+ calcBBox(this.data, this.toBBox);
+};
+
+RBush.prototype._chooseSplitIndex = function _chooseSplitIndex (node, m, M) {
+ var index;
+ var minOverlap = Infinity;
+ var minArea = Infinity;
+
+ for (var i = m; i <= M - m; i++) {
+ var bbox1 = distBBox(node, 0, i, this.toBBox);
+ var bbox2 = distBBox(node, i, M, this.toBBox);
+
+ var overlap = intersectionArea(bbox1, bbox2);
+ var area = bboxArea(bbox1) + bboxArea(bbox2);
+
+ // choose distribution with minimum overlap
+ if (overlap < minOverlap) {
+ minOverlap = overlap;
+ index = i;
+
+ minArea = area < minArea ? area : minArea;
+
+ } else if (overlap === minOverlap) {
+ // otherwise choose distribution with minimum area
+ if (area < minArea) {
+ minArea = area;
+ index = i;
+ }
+ }
+ }
+
+ return index || M - m;
+};
+
+// sorts node children by the best axis for split
+RBush.prototype._chooseSplitAxis = function _chooseSplitAxis (node, m, M) {
+ var compareMinX = node.leaf ? this.compareMinX : compareNodeMinX;
+ var compareMinY = node.leaf ? this.compareMinY : compareNodeMinY;
+ var xMargin = this._allDistMargin(node, m, M, compareMinX);
+ var yMargin = this._allDistMargin(node, m, M, compareMinY);
+
+ // if total distributions margin value is minimal for x, sort by minX,
+ // otherwise it's already sorted by minY
+ if (xMargin < yMargin) { node.children.sort(compareMinX); }
+};
+
+// total margin of all possible split distributions where each node is at least m full
+RBush.prototype._allDistMargin = function _allDistMargin (node, m, M, compare) {
+ node.children.sort(compare);
+
+ var toBBox = this.toBBox;
+ var leftBBox = distBBox(node, 0, m, toBBox);
+ var rightBBox = distBBox(node, M - m, M, toBBox);
+ var margin = bboxMargin(leftBBox) + bboxMargin(rightBBox);
+
+ for (var i = m; i < M - m; i++) {
+ var child = node.children[i];
+ extend(leftBBox, node.leaf ? toBBox(child) : child);
+ margin += bboxMargin(leftBBox);
+ }
+
+ for (var i$1 = M - m - 1; i$1 >= m; i$1--) {
+ var child$1 = node.children[i$1];
+ extend(rightBBox, node.leaf ? toBBox(child$1) : child$1);
+ margin += bboxMargin(rightBBox);
+ }
+
+ return margin;
+};
+
+RBush.prototype._adjustParentBBoxes = function _adjustParentBBoxes (bbox, path, level) {
+ // adjust bboxes along the given tree path
+ for (var i = level; i >= 0; i--) {
+ extend(path[i], bbox);
+ }
+};
+
+RBush.prototype._condense = function _condense (path) {
+ // go through the path, removing empty nodes and updating bboxes
+ for (var i = path.length - 1, siblings = (void 0); i >= 0; i--) {
+ if (path[i].children.length === 0) {
+ if (i > 0) {
+ siblings = path[i - 1].children;
+ siblings.splice(siblings.indexOf(path[i]), 1);
+
+ } else { this.clear(); }
+
+ } else { calcBBox(path[i], this.toBBox); }
+ }
+};
+
+function findItem(item, items, equalsFn) {
+ if (!equalsFn) { return items.indexOf(item); }
+
+ for (var i = 0; i < items.length; i++) {
+ if (equalsFn(item, items[i])) { return i; }
+ }
+ return -1;
+}
+
+// calculate node's bbox from bboxes of its children
+function calcBBox(node, toBBox) {
+ distBBox(node, 0, node.children.length, toBBox, node);
+}
+
+// min bounding rectangle of node children from k to p-1
+function distBBox(node, k, p, toBBox, destNode) {
+ if (!destNode) { destNode = createNode(null); }
+ destNode.minX = Infinity;
+ destNode.minY = Infinity;
+ destNode.maxX = -Infinity;
+ destNode.maxY = -Infinity;
+
+ for (var i = k; i < p; i++) {
+ var child = node.children[i];
+ extend(destNode, node.leaf ? toBBox(child) : child);
+ }
+
+ return destNode;
+}
+
+function extend(a, b) {
+ a.minX = Math.min(a.minX, b.minX);
+ a.minY = Math.min(a.minY, b.minY);
+ a.maxX = Math.max(a.maxX, b.maxX);
+ a.maxY = Math.max(a.maxY, b.maxY);
+ return a;
+}
+
+function compareNodeMinX(a, b) { return a.minX - b.minX; }
+function compareNodeMinY(a, b) { return a.minY - b.minY; }
+
+function bboxArea(a) { return (a.maxX - a.minX) * (a.maxY - a.minY); }
+function bboxMargin(a) { return (a.maxX - a.minX) + (a.maxY - a.minY); }
+
+function enlargedArea(a, b) {
+ return (Math.max(b.maxX, a.maxX) - Math.min(b.minX, a.minX)) *
+ (Math.max(b.maxY, a.maxY) - Math.min(b.minY, a.minY));
+}
+
+function intersectionArea(a, b) {
+ var minX = Math.max(a.minX, b.minX);
+ var minY = Math.max(a.minY, b.minY);
+ var maxX = Math.min(a.maxX, b.maxX);
+ var maxY = Math.min(a.maxY, b.maxY);
+
+ return Math.max(0, maxX - minX) *
+ Math.max(0, maxY - minY);
+}
+
+function contains(a, b) {
+ return a.minX <= b.minX &&
+ a.minY <= b.minY &&
+ b.maxX <= a.maxX &&
+ b.maxY <= a.maxY;
+}
+
+function intersects(a, b) {
+ return b.minX <= a.maxX &&
+ b.minY <= a.maxY &&
+ b.maxX >= a.minX &&
+ b.maxY >= a.minY;
+}
+
+function createNode(children) {
+ return {
+ children: children,
+ height: 1,
+ leaf: true,
+ minX: Infinity,
+ minY: Infinity,
+ maxX: -Infinity,
+ maxY: -Infinity
+ };
+}
+
+// sort an array so that items come in groups of n unsorted items, with groups sorted between each other;
+// combines selection algorithm with binary divide & conquer approach
+
+function multiSelect(arr, left, right, n, compare) {
+ var stack = [left, right];
+
+ while (stack.length) {
+ right = stack.pop();
+ left = stack.pop();
+
+ if (right - left <= n) { continue; }
+
+ var mid = left + Math.ceil((right - left) / n / 2) * n;
+ quickselect(arr, mid, left, right, compare);
+
+ stack.push(left, mid, mid, right);
+ }
+}
+
+return RBush;
+
+}));
+
+},{}],"../../../node_modules/ol/geom/flat/textpath.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.drawTextOnPath = drawTextOnPath;
+
+var _math = require("../../math.js");
+
+var _transform = require("./transform.js");
+
+/**
+ * @module ol/geom/flat/textpath
+ */
+
+/**
+ * @param {Array<number>} flatCoordinates Path to put text on.
+ * @param {number} offset Start offset of the `flatCoordinates`.
+ * @param {number} end End offset of the `flatCoordinates`.
+ * @param {number} stride Stride.
+ * @param {string} text Text to place on the path.
+ * @param {number} startM m along the path where the text starts.
+ * @param {number} maxAngle Max angle between adjacent chars in radians.
+ * @param {number} scale The product of the text scale and the device pixel ratio.
+ * @param {function(string, string, Object<string, number>):number} measureAndCacheTextWidth Measure and cache text width.
+ * @param {string} font The font.
+ * @param {Object<string, number>} cache A cache of measured widths.
+ * @param {number} rotation Rotation to apply to the flatCoordinates to determine whether text needs to be reversed.
+ * @return {Array<Array<*>>} The result array (or null if `maxAngle` was
+ * exceeded). Entries of the array are x, y, anchorX, angle, chunk.
+ */
+function drawTextOnPath(flatCoordinates, offset, end, stride, text, startM, maxAngle, scale, measureAndCacheTextWidth, font, cache, rotation) {
+ var result = []; // Keep text upright
+
+ var reverse;
+
+ if (rotation) {
+ var rotatedCoordinates = (0, _transform.rotate)(flatCoordinates, offset, end, stride, rotation, [flatCoordinates[offset], flatCoordinates[offset + 1]]);
+ reverse = rotatedCoordinates[0] > rotatedCoordinates[rotatedCoordinates.length - stride];
+ } else {
+ reverse = flatCoordinates[offset] > flatCoordinates[end - stride];
+ }
+
+ var numChars = text.length;
+ var x1 = flatCoordinates[offset];
+ var y1 = flatCoordinates[offset + 1];
+ offset += stride;
+ var x2 = flatCoordinates[offset];
+ var y2 = flatCoordinates[offset + 1];
+ var segmentM = 0;
+ var segmentLength = Math.sqrt(Math.pow(x2 - x1, 2) + Math.pow(y2 - y1, 2));
+ var angleChanged = false;
+ var index, previousAngle;
+
+ for (var i = 0; i < numChars; ++i) {
+ index = reverse ? numChars - i - 1 : i;
+ var char = text[index];
+ var charLength = scale * measureAndCacheTextWidth(font, char, cache);
+ var charM = startM + charLength / 2;
+
+ while (offset < end - stride && segmentM + segmentLength < charM) {
+ x1 = x2;
+ y1 = y2;
+ offset += stride;
+ x2 = flatCoordinates[offset];
+ y2 = flatCoordinates[offset + 1];
+ segmentM += segmentLength;
+ segmentLength = Math.sqrt(Math.pow(x2 - x1, 2) + Math.pow(y2 - y1, 2));
+ }
+
+ var segmentPos = charM - segmentM;
+ var angle = Math.atan2(y2 - y1, x2 - x1);
+
+ if (reverse) {
+ angle += angle > 0 ? -Math.PI : Math.PI;
+ }
+
+ if (previousAngle !== undefined) {
+ var delta = angle - previousAngle;
+ angleChanged = angleChanged || delta !== 0;
+ delta += delta > Math.PI ? -2 * Math.PI : delta < -Math.PI ? 2 * Math.PI : 0;
+
+ if (Math.abs(delta) > maxAngle) {
+ return null;
+ }
+ }
+
+ previousAngle = angle;
+ var interpolate = segmentPos / segmentLength;
+ var x = (0, _math.lerp)(x1, x2, interpolate);
+ var y = (0, _math.lerp)(y1, y2, interpolate);
+ result[index] = [x, y, charLength / 2, angle, char];
+ startM += charLength;
+ }
+
+ return angleChanged ? result : [[result[0][0], result[0][1], result[0][2], result[0][3], text]];
+}
+},{"../../math.js":"../../../node_modules/ol/math.js","./transform.js":"../../../node_modules/ol/geom/flat/transform.js"}],"../../../node_modules/ol/render/canvas/Executor.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Instruction = _interopRequireDefault(require("./Instruction.js"));
+
+var _rbush = _interopRequireDefault(require("rbush/rbush.js"));
+
+var _TextBuilder = require("./TextBuilder.js");
+
+var _has = require("../../has.js");
+
+var _transform = require("../../transform.js");
+
+var _extent = require("../../extent.js");
+
+var _canvas = require("../canvas.js");
+
+var _textpath = require("../../geom/flat/textpath.js");
+
+var _array = require("../../array.js");
+
+var _length = require("../../geom/flat/length.js");
+
+var _transform2 = require("../../geom/flat/transform.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module ol/render/canvas/Executor
+ */
+
+/**
+ * @typedef {Object} SerializableInstructions
+ * @property {Array<*>} instructions The rendering instructions.
+ * @property {Array<*>} hitDetectionInstructions The rendering hit detection instructions.
+ * @property {Array<number>} coordinates The array of all coordinates.
+ * @property {!Object<string, import("../canvas.js").TextState>} textStates The text states (decluttering).
+ * @property {!Object<string, import("../canvas.js").FillState>} fillStates The fill states (decluttering).
+ * @property {!Object<string, import("../canvas.js").StrokeState>} strokeStates The stroke states (decluttering).
+ */
+
+/**
+ * @type {import("../../extent.js").Extent}
+ */
+var tmpExtent = (0, _extent.createEmpty)();
+/**
+ * @type {!import("../../transform.js").Transform}
+ */
+
+var tmpTransform = (0, _transform.create)();
+/** @type {import("../../coordinate.js").Coordinate} */
+
+var p1 = [];
+/** @type {import("../../coordinate.js").Coordinate} */
+
+var p2 = [];
+/** @type {import("../../coordinate.js").Coordinate} */
+
+var p3 = [];
+/** @type {import("../../coordinate.js").Coordinate} */
+
+var p4 = [];
+
+var Executor =
+/** @class */
+function () {
+ /**
+ * @param {number} resolution Resolution.
+ * @param {number} pixelRatio Pixel ratio.
+ * @param {boolean} overlaps The replay can have overlapping geometries.
+ * @param {SerializableInstructions} instructions The serializable instructions
+ * @param {import("../../size.js").Size} renderBuffer Render buffer (width/height) in pixels.
+ */
+ function Executor(resolution, pixelRatio, overlaps, instructions, renderBuffer) {
+ /**
+ * @protected
+ * @type {boolean}
+ */
+ this.overlaps = overlaps;
+ /**
+ * @protected
+ * @type {number}
+ */
+
+ this.pixelRatio = pixelRatio;
+ /**
+ * @protected
+ * @const
+ * @type {number}
+ */
+
+ this.resolution = resolution;
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ this.alignFill_;
+ /**
+ * @type {Array<*>}
+ */
+
+ this.declutterItems = [];
+ /**
+ * @protected
+ * @type {Array<*>}
+ */
+
+ this.instructions = instructions.instructions;
+ /**
+ * @protected
+ * @type {Array<number>}
+ */
+
+ this.coordinates = instructions.coordinates;
+ /**
+ * @private
+ * @type {!Object<number,import("../../coordinate.js").Coordinate|Array<import("../../coordinate.js").Coordinate>|Array<Array<import("../../coordinate.js").Coordinate>>>}
+ */
+
+ this.coordinateCache_ = {};
+ /**
+ * @private
+ * @type {import("../../size.js").Size}
+ */
+
+ this.renderBuffer_ = renderBuffer;
+ /**
+ * @private
+ * @type {!import("../../transform.js").Transform}
+ */
+
+ this.renderedTransform_ = (0, _transform.create)();
+ /**
+ * @protected
+ * @type {Array<*>}
+ */
+
+ this.hitDetectionInstructions = instructions.hitDetectionInstructions;
+ /**
+ * @private
+ * @type {Array<number>}
+ */
+
+ this.pixelCoordinates_ = null;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ this.viewRotation_ = 0;
+ /**
+ * @type {!Object<string, import("../canvas.js").FillState>}
+ */
+
+ this.fillStates = instructions.fillStates || {};
+ /**
+ * @type {!Object<string, import("../canvas.js").StrokeState>}
+ */
+
+ this.strokeStates = instructions.strokeStates || {};
+ /**
+ * @type {!Object<string, import("../canvas.js").TextState>}
+ */
+
+ this.textStates = instructions.textStates || {};
+ /**
+ * @private
+ * @type {Object<string, Object<string, number>>}
+ */
+
+ this.widths_ = {};
+ /**
+ * @private
+ * @type {Object<string, import("../canvas.js").Label>}
+ */
+
+ this.labels_ = {};
+ }
+ /**
+ * @param {string} text Text.
+ * @param {string} textKey Text style key.
+ * @param {string} fillKey Fill style key.
+ * @param {string} strokeKey Stroke style key.
+ * @return {import("../canvas.js").Label} Label.
+ */
+
+
+ Executor.prototype.createLabel = function (text, textKey, fillKey, strokeKey) {
+ var key = text + textKey + fillKey + strokeKey;
+
+ if (this.labels_[key]) {
+ return this.labels_[key];
+ }
+
+ var strokeState = strokeKey ? this.strokeStates[strokeKey] : null;
+ var fillState = fillKey ? this.fillStates[fillKey] : null;
+ var textState = this.textStates[textKey];
+ var pixelRatio = this.pixelRatio;
+ var scale = [textState.scale[0] * pixelRatio, textState.scale[1] * pixelRatio];
+ var align = _TextBuilder.TEXT_ALIGN[textState.textAlign || _canvas.defaultTextAlign];
+ var strokeWidth = strokeKey && strokeState.lineWidth ? strokeState.lineWidth : 0;
+ var lines = text.split('\n');
+ var numLines = lines.length;
+ var widths = [];
+ var width = (0, _canvas.measureTextWidths)(textState.font, lines, widths);
+ var lineHeight = (0, _canvas.measureTextHeight)(textState.font);
+ var height = lineHeight * numLines;
+ var renderWidth = width + strokeWidth;
+ var contextInstructions = []; // make canvas 2 pixels wider to account for italic text width measurement errors
+
+ var w = (renderWidth + 2) * scale[0];
+ var h = (height + strokeWidth) * scale[1];
+ /** @type {import("../canvas.js").Label} */
+
+ var label = {
+ width: w < 0 ? Math.floor(w) : Math.ceil(w),
+ height: h < 0 ? Math.floor(h) : Math.ceil(h),
+ contextInstructions: contextInstructions
+ };
+
+ if (scale[0] != 1 || scale[1] != 1) {
+ contextInstructions.push('scale', scale);
+ }
+
+ contextInstructions.push('font', textState.font);
+
+ if (strokeKey) {
+ contextInstructions.push('strokeStyle', strokeState.strokeStyle);
+ contextInstructions.push('lineWidth', strokeWidth);
+ contextInstructions.push('lineCap', strokeState.lineCap);
+ contextInstructions.push('lineJoin', strokeState.lineJoin);
+ contextInstructions.push('miterLimit', strokeState.miterLimit); // eslint-disable-next-line
+
+ var Context = _has.WORKER_OFFSCREEN_CANVAS ? OffscreenCanvasRenderingContext2D : CanvasRenderingContext2D;
+
+ if (Context.prototype.setLineDash) {
+ contextInstructions.push('setLineDash', [strokeState.lineDash]);
+ contextInstructions.push('lineDashOffset', strokeState.lineDashOffset);
+ }
+ }
+
+ if (fillKey) {
+ contextInstructions.push('fillStyle', fillState.fillStyle);
+ }
+
+ contextInstructions.push('textBaseline', 'middle');
+ contextInstructions.push('textAlign', 'center');
+ var leftRight = 0.5 - align;
+ var x = align * renderWidth + leftRight * strokeWidth;
+ var i;
+
+ if (strokeKey) {
+ for (i = 0; i < numLines; ++i) {
+ contextInstructions.push('strokeText', [lines[i], x + leftRight * widths[i], 0.5 * (strokeWidth + lineHeight) + i * lineHeight]);
+ }
+ }
+
+ if (fillKey) {
+ for (i = 0; i < numLines; ++i) {
+ contextInstructions.push('fillText', [lines[i], x + leftRight * widths[i], 0.5 * (strokeWidth + lineHeight) + i * lineHeight]);
+ }
+ }
+
+ this.labels_[key] = label;
+ return label;
+ };
+ /**
+ * @param {CanvasRenderingContext2D} context Context.
+ * @param {import("../../coordinate.js").Coordinate} p1 1st point of the background box.
+ * @param {import("../../coordinate.js").Coordinate} p2 2nd point of the background box.
+ * @param {import("../../coordinate.js").Coordinate} p3 3rd point of the background box.
+ * @param {import("../../coordinate.js").Coordinate} p4 4th point of the background box.
+ * @param {Array<*>} fillInstruction Fill instruction.
+ * @param {Array<*>} strokeInstruction Stroke instruction.
+ * @param {boolean} declutter Declutter.
+ */
+
+
+ Executor.prototype.replayTextBackground_ = function (context, p1, p2, p3, p4, fillInstruction, strokeInstruction, declutter) {
+ context.beginPath();
+ context.moveTo.apply(context, p1);
+ context.lineTo.apply(context, p2);
+ context.lineTo.apply(context, p3);
+ context.lineTo.apply(context, p4);
+ context.lineTo.apply(context, p1);
+
+ if (fillInstruction) {
+ this.alignFill_ =
+ /** @type {boolean} */
+ fillInstruction[2];
+
+ if (declutter) {
+ context.fillStyle =
+ /** @type {import("../../colorlike.js").ColorLike} */
+ fillInstruction[1];
+ }
+
+ this.fill_(context);
+ }
+
+ if (strokeInstruction) {
+ this.setStrokeStyle_(context,
+ /** @type {Array<*>} */
+ strokeInstruction);
+ context.stroke();
+ }
+ };
+ /**
+ * @private
+ * @param {CanvasRenderingContext2D} context Context.
+ * @param {number} contextScale Scale of the context.
+ * @param {number} x X.
+ * @param {number} y Y.
+ * @param {import("../canvas.js").Label|HTMLImageElement|HTMLCanvasElement|HTMLVideoElement} imageOrLabel Image.
+ * @param {number} anchorX Anchor X.
+ * @param {number} anchorY Anchor Y.
+ * @param {import("../canvas.js").DeclutterGroup} declutterGroup Declutter group.
+ * @param {number} height Height.
+ * @param {number} opacity Opacity.
+ * @param {number} originX Origin X.
+ * @param {number} originY Origin Y.
+ * @param {number} rotation Rotation.
+ * @param {import("../../size.js").Size} scale Scale.
+ * @param {boolean} snapToPixel Snap to pixel.
+ * @param {number} width Width.
+ * @param {Array<number>} padding Padding.
+ * @param {Array<*>} fillInstruction Fill instruction.
+ * @param {Array<*>} strokeInstruction Stroke instruction.
+ * @return {boolean} The image or label was rendered.
+ */
+
+
+ Executor.prototype.replayImageOrLabel_ = function (context, contextScale, x, y, imageOrLabel, anchorX, anchorY, declutterGroup, height, opacity, originX, originY, rotation, scale, snapToPixel, width, padding, fillInstruction, strokeInstruction) {
+ var fillStroke = fillInstruction || strokeInstruction;
+ anchorX *= scale[0];
+ anchorY *= scale[1];
+ x -= anchorX;
+ y -= anchorY;
+ var w = width + originX > imageOrLabel.width ? imageOrLabel.width - originX : width;
+ var h = height + originY > imageOrLabel.height ? imageOrLabel.height - originY : height;
+ var boxW = padding[3] + w * scale[0] + padding[1];
+ var boxH = padding[0] + h * scale[1] + padding[2];
+ var boxX = x - padding[3];
+ var boxY = y - padding[0];
+
+ if (fillStroke || rotation !== 0) {
+ p1[0] = boxX;
+ p4[0] = boxX;
+ p1[1] = boxY;
+ p2[1] = boxY;
+ p2[0] = boxX + boxW;
+ p3[0] = p2[0];
+ p3[1] = boxY + boxH;
+ p4[1] = p3[1];
+ }
+
+ var transform = null;
+
+ if (rotation !== 0) {
+ var centerX = x + anchorX;
+ var centerY = y + anchorY;
+ transform = (0, _transform.compose)(tmpTransform, centerX, centerY, 1, 1, rotation, -centerX, -centerY);
+ (0, _transform.apply)(tmpTransform, p1);
+ (0, _transform.apply)(tmpTransform, p2);
+ (0, _transform.apply)(tmpTransform, p3);
+ (0, _transform.apply)(tmpTransform, p4);
+ (0, _extent.createOrUpdate)(Math.min(p1[0], p2[0], p3[0], p4[0]), Math.min(p1[1], p2[1], p3[1], p4[1]), Math.max(p1[0], p2[0], p3[0], p4[0]), Math.max(p1[1], p2[1], p3[1], p4[1]), tmpExtent);
+ } else {
+ (0, _extent.createOrUpdate)(boxX, boxY, boxX + boxW, boxY + boxH, tmpExtent);
+ }
+
+ var renderBufferX = 0;
+ var renderBufferY = 0;
+
+ if (declutterGroup) {
+ var renderBuffer = this.renderBuffer_;
+ renderBuffer[0] = Math.max(renderBuffer[0], (0, _extent.getWidth)(tmpExtent));
+ renderBufferX = renderBuffer[0];
+ renderBuffer[1] = Math.max(renderBuffer[1], (0, _extent.getHeight)(tmpExtent));
+ renderBufferY = renderBuffer[1];
+ }
+
+ var canvas = context.canvas;
+ var strokePadding = strokeInstruction ? strokeInstruction[2] * scale[0] / 2 : 0;
+ var intersects = tmpExtent[0] - strokePadding <= (canvas.width + renderBufferX) / contextScale && tmpExtent[2] + strokePadding >= -renderBufferX / contextScale && tmpExtent[1] - strokePadding <= (canvas.height + renderBufferY) / contextScale && tmpExtent[3] + strokePadding >= -renderBufferY / contextScale;
+
+ if (snapToPixel) {
+ x = Math.round(x);
+ y = Math.round(y);
+ }
+
+ if (declutterGroup) {
+ if (!intersects && declutterGroup[0] == 1) {
+ return false;
+ }
+
+ var declutterArgs = intersects ? [context, transform ? transform.slice(0) : null, opacity, imageOrLabel, originX, originY, w, h, x, y, scale, tmpExtent.slice()] : null;
+
+ if (declutterArgs) {
+ if (fillStroke) {
+ declutterArgs.push(fillInstruction, strokeInstruction, p1.slice(0), p2.slice(0), p3.slice(0), p4.slice(0));
+ }
+
+ declutterGroup.push(declutterArgs);
+ }
+ } else if (intersects) {
+ if (fillStroke) {
+ this.replayTextBackground_(context, p1, p2, p3, p4,
+ /** @type {Array<*>} */
+ fillInstruction,
+ /** @type {Array<*>} */
+ strokeInstruction, false);
+ }
+
+ (0, _canvas.drawImageOrLabel)(context, transform, opacity, imageOrLabel, originX, originY, w, h, x, y, scale);
+ }
+
+ return true;
+ };
+ /**
+ * @private
+ * @param {CanvasRenderingContext2D} context Context.
+ */
+
+
+ Executor.prototype.fill_ = function (context) {
+ if (this.alignFill_) {
+ var origin_1 = (0, _transform.apply)(this.renderedTransform_, [0, 0]);
+ var repeatSize = 512 * this.pixelRatio;
+ context.save();
+ context.translate(origin_1[0] % repeatSize, origin_1[1] % repeatSize);
+ context.rotate(this.viewRotation_);
+ }
+
+ context.fill();
+
+ if (this.alignFill_) {
+ context.restore();
+ }
+ };
+ /**
+ * @private
+ * @param {CanvasRenderingContext2D} context Context.
+ * @param {Array<*>} instruction Instruction.
+ */
+
+
+ Executor.prototype.setStrokeStyle_ = function (context, instruction) {
+ context.strokeStyle =
+ /** @type {import("../../colorlike.js").ColorLike} */
+ instruction[1];
+ context.lineWidth =
+ /** @type {number} */
+ instruction[2];
+ context.lineCap =
+ /** @type {CanvasLineCap} */
+ instruction[3];
+ context.lineJoin =
+ /** @type {CanvasLineJoin} */
+ instruction[4];
+ context.miterLimit =
+ /** @type {number} */
+ instruction[5];
+
+ if (context.setLineDash) {
+ context.lineDashOffset =
+ /** @type {number} */
+ instruction[7];
+ context.setLineDash(
+ /** @type {Array<number>} */
+ instruction[6]);
+ }
+ };
+ /**
+ * @param {import("../canvas.js").DeclutterGroup} declutterGroup Declutter group.
+ * @param {import("../../Feature.js").FeatureLike} feature Feature.
+ * @param {number} opacity Layer opacity.
+ * @param {?} declutterTree Declutter tree.
+ * @return {?} Declutter tree.
+ */
+
+
+ Executor.prototype.renderDeclutter = function (declutterGroup, feature, opacity, declutterTree) {
+ /** @type {Array<import("../../structs/RBush.js").Entry>} */
+ var boxes = [];
+
+ for (var i = 1, ii = declutterGroup.length; i < ii; ++i) {
+ var declutterData = declutterGroup[i];
+ var box = declutterData[11];
+ boxes.push({
+ minX: box[0],
+ minY: box[1],
+ maxX: box[2],
+ maxY: box[3],
+ value: feature
+ });
+ }
+
+ if (!declutterTree) {
+ declutterTree = new _rbush.default(9);
+ }
+
+ var collides = false;
+
+ for (var i = 0, ii = boxes.length; i < ii; ++i) {
+ if (declutterTree.collides(boxes[i])) {
+ collides = true;
+ break;
+ }
+ }
+
+ if (!collides) {
+ declutterTree.load(boxes);
+
+ for (var j = 1, jj = declutterGroup.length; j < jj; ++j) {
+ var declutterData =
+ /** @type {Array} */
+ declutterGroup[j];
+ var context = declutterData[0];
+ var currentAlpha = context.globalAlpha;
+
+ if (currentAlpha !== opacity) {
+ context.globalAlpha = opacity;
+ }
+
+ if (declutterData.length > 12) {
+ this.replayTextBackground_(declutterData[0], declutterData[14], declutterData[15], declutterData[16], declutterData[17], declutterData[12], declutterData[13], true);
+ }
+
+ _canvas.drawImageOrLabel.apply(undefined, declutterData);
+
+ if (currentAlpha !== opacity) {
+ context.globalAlpha = currentAlpha;
+ }
+ }
+ }
+
+ declutterGroup.length = 1;
+ return declutterTree;
+ };
+ /**
+ * @private
+ * @param {string} text The text to draw.
+ * @param {string} textKey The key of the text state.
+ * @param {string} strokeKey The key for the stroke state.
+ * @param {string} fillKey The key for the fill state.
+ * @return {{label: import("../canvas.js").Label, anchorX: number, anchorY: number}} The text image and its anchor.
+ */
+
+
+ Executor.prototype.drawLabelWithPointPlacement_ = function (text, textKey, strokeKey, fillKey) {
+ var textState = this.textStates[textKey];
+ var label = this.createLabel(text, textKey, fillKey, strokeKey);
+ var strokeState = this.strokeStates[strokeKey];
+ var pixelRatio = this.pixelRatio;
+ var align = _TextBuilder.TEXT_ALIGN[textState.textAlign || _canvas.defaultTextAlign];
+ var baseline = _TextBuilder.TEXT_ALIGN[textState.textBaseline || _canvas.defaultTextBaseline];
+ var strokeWidth = strokeState && strokeState.lineWidth ? strokeState.lineWidth : 0; // Remove the 2 pixels we added in createLabel() for the anchor
+
+ var width = label.width / pixelRatio - 2 * textState.scale[0];
+ var anchorX = align * width + 2 * (0.5 - align) * strokeWidth;
+ var anchorY = baseline * label.height / pixelRatio + 2 * (0.5 - baseline) * strokeWidth;
+ return {
+ label: label,
+ anchorX: anchorX,
+ anchorY: anchorY
+ };
+ };
+ /**
+ * @private
+ * @param {CanvasRenderingContext2D} context Context.
+ * @param {number} contextScale Scale of the context.
+ * @param {import("../../transform.js").Transform} transform Transform.
+ * @param {Array<*>} instructions Instructions array.
+ * @param {boolean} snapToPixel Snap point symbols and text to integer pixels.
+ * @param {function(import("../../Feature.js").FeatureLike): T|undefined} featureCallback Feature callback.
+ * @param {import("../../extent.js").Extent=} opt_hitExtent Only check features that intersect this
+ * extent.
+ * @return {T|undefined} Callback result.
+ * @template T
+ */
+
+
+ Executor.prototype.execute_ = function (context, contextScale, transform, instructions, snapToPixel, featureCallback, opt_hitExtent) {
+ this.declutterItems.length = 0;
+ /** @type {Array<number>} */
+
+ var pixelCoordinates;
+
+ if (this.pixelCoordinates_ && (0, _array.equals)(transform, this.renderedTransform_)) {
+ pixelCoordinates = this.pixelCoordinates_;
+ } else {
+ if (!this.pixelCoordinates_) {
+ this.pixelCoordinates_ = [];
+ }
+
+ pixelCoordinates = (0, _transform2.transform2D)(this.coordinates, 0, this.coordinates.length, 2, transform, this.pixelCoordinates_);
+ (0, _transform.setFromArray)(this.renderedTransform_, transform);
+ }
+
+ var i = 0; // instruction index
+
+ var ii = instructions.length; // end of instructions
+
+ var d = 0; // data index
+
+ var dd; // end of per-instruction data
+
+ var anchorX, anchorY, prevX, prevY, roundX, roundY, declutterGroup, declutterGroups, image, text, textKey;
+ var strokeKey, fillKey;
+ var pendingFill = 0;
+ var pendingStroke = 0;
+ var lastFillInstruction = null;
+ var lastStrokeInstruction = null;
+ var coordinateCache = this.coordinateCache_;
+ var viewRotation = this.viewRotation_;
+ var viewRotationFromTransform = Math.round(Math.atan2(-transform[1], transform[0]) * 1e12) / 1e12;
+ var state =
+ /** @type {import("../../render.js").State} */
+ {
+ context: context,
+ pixelRatio: this.pixelRatio,
+ resolution: this.resolution,
+ rotation: viewRotation
+ }; // When the batch size gets too big, performance decreases. 200 is a good
+ // balance between batch size and number of fill/stroke instructions.
+
+ var batchSize = this.instructions != instructions || this.overlaps ? 0 : 200;
+ var
+ /** @type {import("../../Feature.js").FeatureLike} */
+ feature;
+ var x, y;
+
+ while (i < ii) {
+ var instruction = instructions[i];
+ var type =
+ /** @type {import("./Instruction.js").default} */
+ instruction[0];
+
+ switch (type) {
+ case _Instruction.default.BEGIN_GEOMETRY:
+ feature =
+ /** @type {import("../../Feature.js").FeatureLike} */
+ instruction[1];
+
+ if (!feature.getGeometry()) {
+ i =
+ /** @type {number} */
+ instruction[2];
+ } else if (opt_hitExtent !== undefined && !(0, _extent.intersects)(opt_hitExtent, instruction[3])) {
+ i =
+ /** @type {number} */
+ instruction[2] + 1;
+ } else {
+ ++i;
+ }
+
+ break;
+
+ case _Instruction.default.BEGIN_PATH:
+ if (pendingFill > batchSize) {
+ this.fill_(context);
+ pendingFill = 0;
+ }
+
+ if (pendingStroke > batchSize) {
+ context.stroke();
+ pendingStroke = 0;
+ }
+
+ if (!pendingFill && !pendingStroke) {
+ context.beginPath();
+ prevX = NaN;
+ prevY = NaN;
+ }
+
+ ++i;
+ break;
+
+ case _Instruction.default.CIRCLE:
+ d =
+ /** @type {number} */
+ instruction[1];
+ var x1 = pixelCoordinates[d];
+ var y1 = pixelCoordinates[d + 1];
+ var x2 = pixelCoordinates[d + 2];
+ var y2 = pixelCoordinates[d + 3];
+ var dx = x2 - x1;
+ var dy = y2 - y1;
+ var r = Math.sqrt(dx * dx + dy * dy);
+ context.moveTo(x1 + r, y1);
+ context.arc(x1, y1, r, 0, 2 * Math.PI, true);
+ ++i;
+ break;
+
+ case _Instruction.default.CLOSE_PATH:
+ context.closePath();
+ ++i;
+ break;
+
+ case _Instruction.default.CUSTOM:
+ d =
+ /** @type {number} */
+ instruction[1];
+ dd = instruction[2];
+ var geometry =
+ /** @type {import("../../geom/SimpleGeometry.js").default} */
+ instruction[3];
+ var renderer = instruction[4];
+ var fn = instruction.length == 6 ? instruction[5] : undefined;
+ state.geometry = geometry;
+ state.feature = feature;
+
+ if (!(i in coordinateCache)) {
+ coordinateCache[i] = [];
+ }
+
+ var coords = coordinateCache[i];
+
+ if (fn) {
+ fn(pixelCoordinates, d, dd, 2, coords);
+ } else {
+ coords[0] = pixelCoordinates[d];
+ coords[1] = pixelCoordinates[d + 1];
+ coords.length = 2;
+ }
+
+ renderer(coords, state);
+ ++i;
+ break;
+
+ case _Instruction.default.DRAW_IMAGE:
+ d =
+ /** @type {number} */
+ instruction[1];
+ dd =
+ /** @type {number} */
+ instruction[2];
+ image =
+ /** @type {HTMLCanvasElement|HTMLVideoElement|HTMLImageElement} */
+ instruction[3]; // Remaining arguments in DRAW_IMAGE are in alphabetical order
+
+ anchorX =
+ /** @type {number} */
+ instruction[4];
+ anchorY =
+ /** @type {number} */
+ instruction[5];
+ declutterGroups = featureCallback ? null : instruction[6];
+ var height =
+ /** @type {number} */
+ instruction[7];
+ var opacity =
+ /** @type {number} */
+ instruction[8];
+ var originX =
+ /** @type {number} */
+ instruction[9];
+ var originY =
+ /** @type {number} */
+ instruction[10];
+ var rotateWithView =
+ /** @type {boolean} */
+ instruction[11];
+ var rotation =
+ /** @type {number} */
+ instruction[12];
+ var scale =
+ /** @type {import("../../size.js").Size} */
+ instruction[13];
+ var width =
+ /** @type {number} */
+ instruction[14];
+
+ if (!image && instruction.length >= 19) {
+ // create label images
+ text =
+ /** @type {string} */
+ instruction[18];
+ textKey =
+ /** @type {string} */
+ instruction[19];
+ strokeKey =
+ /** @type {string} */
+ instruction[20];
+ fillKey =
+ /** @type {string} */
+ instruction[21];
+ var labelWithAnchor = this.drawLabelWithPointPlacement_(text, textKey, strokeKey, fillKey);
+ image = labelWithAnchor.label;
+ instruction[3] = image;
+ var textOffsetX =
+ /** @type {number} */
+ instruction[22];
+ anchorX = (labelWithAnchor.anchorX - textOffsetX) * this.pixelRatio;
+ instruction[4] = anchorX;
+ var textOffsetY =
+ /** @type {number} */
+ instruction[23];
+ anchorY = (labelWithAnchor.anchorY - textOffsetY) * this.pixelRatio;
+ instruction[5] = anchorY;
+ height = image.height;
+ instruction[7] = height;
+ width = image.width;
+ instruction[14] = width;
+ }
+
+ var geometryWidths = void 0;
+
+ if (instruction.length > 24) {
+ geometryWidths =
+ /** @type {number} */
+ instruction[24];
+ }
+
+ var padding = void 0,
+ backgroundFill = void 0,
+ backgroundStroke = void 0;
+
+ if (instruction.length > 16) {
+ padding =
+ /** @type {Array<number>} */
+ instruction[15];
+ backgroundFill =
+ /** @type {boolean} */
+ instruction[16];
+ backgroundStroke =
+ /** @type {boolean} */
+ instruction[17];
+ } else {
+ padding = _canvas.defaultPadding;
+ backgroundFill = false;
+ backgroundStroke = false;
+ }
+
+ if (rotateWithView && viewRotationFromTransform) {
+ // Canvas is expected to be rotated to reverse view rotation.
+ rotation += viewRotation;
+ } else if (!rotateWithView && !viewRotationFromTransform) {
+ // Canvas is not rotated, images need to be rotated back to be north-up.
+ rotation -= viewRotation;
+ }
+
+ var widthIndex = 0;
+ var declutterGroupIndex = 0;
+
+ for (; d < dd; d += 2) {
+ if (geometryWidths && geometryWidths[widthIndex++] < width / this.pixelRatio) {
+ continue;
+ }
+
+ if (declutterGroups) {
+ var index = Math.floor(declutterGroupIndex);
+ declutterGroup = declutterGroups.length < index + 1 ? [declutterGroups[0][0]] : declutterGroups[index];
+ }
+
+ var rendered = this.replayImageOrLabel_(context, contextScale, pixelCoordinates[d], pixelCoordinates[d + 1], image, anchorX, anchorY, declutterGroup, height, opacity, originX, originY, rotation, scale, snapToPixel, width, padding, backgroundFill ?
+ /** @type {Array<*>} */
+ lastFillInstruction : null, backgroundStroke ?
+ /** @type {Array<*>} */
+ lastStrokeInstruction : null);
+
+ if (rendered && declutterGroup && declutterGroups[declutterGroups.length - 1] !== declutterGroup) {
+ declutterGroups.push(declutterGroup);
+ }
+
+ if (declutterGroup) {
+ if (declutterGroup.length - 1 === declutterGroup[0]) {
+ this.declutterItems.push(this, declutterGroup, feature);
+ }
+
+ declutterGroupIndex += 1 / declutterGroup[0];
+ }
+ }
+
+ ++i;
+ break;
+
+ case _Instruction.default.DRAW_CHARS:
+ var begin =
+ /** @type {number} */
+ instruction[1];
+ var end =
+ /** @type {number} */
+ instruction[2];
+ var baseline =
+ /** @type {number} */
+ instruction[3];
+ declutterGroup = featureCallback ? null : instruction[4];
+ var overflow =
+ /** @type {number} */
+ instruction[5];
+ fillKey =
+ /** @type {string} */
+ instruction[6];
+ var maxAngle =
+ /** @type {number} */
+ instruction[7];
+ var measurePixelRatio =
+ /** @type {number} */
+ instruction[8];
+ var offsetY =
+ /** @type {number} */
+ instruction[9];
+ strokeKey =
+ /** @type {string} */
+ instruction[10];
+ var strokeWidth =
+ /** @type {number} */
+ instruction[11];
+ text =
+ /** @type {string} */
+ instruction[12];
+ textKey =
+ /** @type {string} */
+ instruction[13];
+ var pixelRatioScale = [
+ /** @type {number} */
+ instruction[14],
+ /** @type {number} */
+ instruction[14]];
+ var textState = this.textStates[textKey];
+ var font = textState.font;
+ var textScale = [textState.scale[0] * measurePixelRatio, textState.scale[1] * measurePixelRatio];
+ var cachedWidths = void 0;
+
+ if (font in this.widths_) {
+ cachedWidths = this.widths_[font];
+ } else {
+ cachedWidths = {};
+ this.widths_[font] = cachedWidths;
+ }
+
+ var pathLength = (0, _length.lineStringLength)(pixelCoordinates, begin, end, 2);
+ var textLength = Math.abs(textScale[0]) * (0, _canvas.measureAndCacheTextWidth)(font, text, cachedWidths);
+
+ if (overflow || textLength <= pathLength) {
+ var textAlign = this.textStates[textKey].textAlign;
+ var startM = (pathLength - textLength) * _TextBuilder.TEXT_ALIGN[textAlign];
+ var parts = (0, _textpath.drawTextOnPath)(pixelCoordinates, begin, end, 2, text, startM, maxAngle, Math.abs(textScale[0]), _canvas.measureAndCacheTextWidth, font, cachedWidths, viewRotationFromTransform ? 0 : this.viewRotation_);
+
+ if (parts) {
+ var rendered = false;
+ var c = void 0,
+ cc = void 0,
+ chars = void 0,
+ label = void 0,
+ part = void 0;
+
+ if (strokeKey) {
+ for (c = 0, cc = parts.length; c < cc; ++c) {
+ part = parts[c]; // x, y, anchorX, rotation, chunk
+
+ chars =
+ /** @type {string} */
+ part[4];
+ label = this.createLabel(chars, textKey, '', strokeKey);
+ anchorX =
+ /** @type {number} */
+ part[2] + strokeWidth;
+ anchorY = baseline * label.height + (0.5 - baseline) * 2 * strokeWidth * textScale[1] / textScale[0] - offsetY;
+ rendered = this.replayImageOrLabel_(context, contextScale,
+ /** @type {number} */
+ part[0],
+ /** @type {number} */
+ part[1], label, anchorX, anchorY, declutterGroup, label.height, 1, 0, 0,
+ /** @type {number} */
+ part[3], pixelRatioScale, false, label.width, _canvas.defaultPadding, null, null) || rendered;
+ }
+ }
+
+ if (fillKey) {
+ for (c = 0, cc = parts.length; c < cc; ++c) {
+ part = parts[c]; // x, y, anchorX, rotation, chunk
+
+ chars =
+ /** @type {string} */
+ part[4];
+ label = this.createLabel(chars, textKey, fillKey, '');
+ anchorX =
+ /** @type {number} */
+ part[2];
+ anchorY = baseline * label.height - offsetY;
+ rendered = this.replayImageOrLabel_(context, contextScale,
+ /** @type {number} */
+ part[0],
+ /** @type {number} */
+ part[1], label, anchorX, anchorY, declutterGroup, label.height, 1, 0, 0,
+ /** @type {number} */
+ part[3], pixelRatioScale, false, label.width, _canvas.defaultPadding, null, null) || rendered;
+ }
+ }
+
+ if (rendered) {
+ this.declutterItems.push(this, declutterGroup, feature);
+ }
+ }
+ }
+
+ ++i;
+ break;
+
+ case _Instruction.default.END_GEOMETRY:
+ if (featureCallback !== undefined) {
+ feature =
+ /** @type {import("../../Feature.js").FeatureLike} */
+ instruction[1];
+ var result = featureCallback(feature);
+
+ if (result) {
+ return result;
+ }
+ }
+
+ ++i;
+ break;
+
+ case _Instruction.default.FILL:
+ if (batchSize) {
+ pendingFill++;
+ } else {
+ this.fill_(context);
+ }
+
+ ++i;
+ break;
+
+ case _Instruction.default.MOVE_TO_LINE_TO:
+ d =
+ /** @type {number} */
+ instruction[1];
+ dd =
+ /** @type {number} */
+ instruction[2];
+ x = pixelCoordinates[d];
+ y = pixelCoordinates[d + 1];
+ roundX = x + 0.5 | 0;
+ roundY = y + 0.5 | 0;
+
+ if (roundX !== prevX || roundY !== prevY) {
+ context.moveTo(x, y);
+ prevX = roundX;
+ prevY = roundY;
+ }
+
+ for (d += 2; d < dd; d += 2) {
+ x = pixelCoordinates[d];
+ y = pixelCoordinates[d + 1];
+ roundX = x + 0.5 | 0;
+ roundY = y + 0.5 | 0;
+
+ if (d == dd - 2 || roundX !== prevX || roundY !== prevY) {
+ context.lineTo(x, y);
+ prevX = roundX;
+ prevY = roundY;
+ }
+ }
+
+ ++i;
+ break;
+
+ case _Instruction.default.SET_FILL_STYLE:
+ lastFillInstruction = instruction;
+ this.alignFill_ = instruction[2];
+
+ if (pendingFill) {
+ this.fill_(context);
+ pendingFill = 0;
+
+ if (pendingStroke) {
+ context.stroke();
+ pendingStroke = 0;
+ }
+ }
+
+ context.fillStyle =
+ /** @type {import("../../colorlike.js").ColorLike} */
+ instruction[1];
+ ++i;
+ break;
+
+ case _Instruction.default.SET_STROKE_STYLE:
+ lastStrokeInstruction = instruction;
+
+ if (pendingStroke) {
+ context.stroke();
+ pendingStroke = 0;
+ }
+
+ this.setStrokeStyle_(context,
+ /** @type {Array<*>} */
+ instruction);
+ ++i;
+ break;
+
+ case _Instruction.default.STROKE:
+ if (batchSize) {
+ pendingStroke++;
+ } else {
+ context.stroke();
+ }
+
+ ++i;
+ break;
+
+ default:
+ ++i; // consume the instruction anyway, to avoid an infinite loop
+
+ break;
+ }
+ }
+
+ if (pendingFill) {
+ this.fill_(context);
+ }
+
+ if (pendingStroke) {
+ context.stroke();
+ }
+
+ return undefined;
+ };
+ /**
+ * @param {CanvasRenderingContext2D} context Context.
+ * @param {number} contextScale Scale of the context.
+ * @param {import("../../transform.js").Transform} transform Transform.
+ * @param {number} viewRotation View rotation.
+ * @param {boolean} snapToPixel Snap point symbols and text to integer pixels.
+ */
+
+
+ Executor.prototype.execute = function (context, contextScale, transform, viewRotation, snapToPixel) {
+ this.viewRotation_ = viewRotation;
+ this.execute_(context, contextScale, transform, this.instructions, snapToPixel, undefined, undefined);
+ };
+ /**
+ * @param {CanvasRenderingContext2D} context Context.
+ * @param {import("../../transform.js").Transform} transform Transform.
+ * @param {number} viewRotation View rotation.
+ * @param {function(import("../../Feature.js").FeatureLike): T=} opt_featureCallback
+ * Feature callback.
+ * @param {import("../../extent.js").Extent=} opt_hitExtent Only check features that intersect this
+ * extent.
+ * @return {T|undefined} Callback result.
+ * @template T
+ */
+
+
+ Executor.prototype.executeHitDetection = function (context, transform, viewRotation, opt_featureCallback, opt_hitExtent) {
+ this.viewRotation_ = viewRotation;
+ return this.execute_(context, 1, transform, this.hitDetectionInstructions, true, opt_featureCallback, opt_hitExtent);
+ };
+
+ return Executor;
+}();
+
+var _default = Executor;
+exports.default = _default;
+},{"./Instruction.js":"../../../node_modules/ol/render/canvas/Instruction.js","rbush/rbush.js":"../../../node_modules/rbush/rbush.js","./TextBuilder.js":"../../../node_modules/ol/render/canvas/TextBuilder.js","../../has.js":"../../../node_modules/ol/has.js","../../transform.js":"../../../node_modules/ol/transform.js","../../extent.js":"../../../node_modules/ol/extent.js","../canvas.js":"../../../node_modules/ol/render/canvas.js","../../geom/flat/textpath.js":"../../../node_modules/ol/geom/flat/textpath.js","../../array.js":"../../../node_modules/ol/array.js","../../geom/flat/length.js":"../../../node_modules/ol/geom/flat/length.js","../../geom/flat/transform.js":"../../../node_modules/ol/geom/flat/transform.js"}],"../../../node_modules/ol/render/canvas/ExecutorGroup.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.getCircleArray = getCircleArray;
+exports.replayDeclutter = replayDeclutter;
+exports.default = void 0;
+
+var _BuilderType = _interopRequireDefault(require("./BuilderType.js"));
+
+var _Executor = _interopRequireDefault(require("./Executor.js"));
+
+var _extent = require("../../extent.js");
+
+var _transform = require("../../transform.js");
+
+var _dom = require("../../dom.js");
+
+var _obj = require("../../obj.js");
+
+var _array = require("../../array.js");
+
+var _transform2 = require("../../geom/flat/transform.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module ol/render/canvas/ExecutorGroup
+ */
+
+/**
+ * @const
+ * @type {Array<import("./BuilderType.js").default>}
+ */
+var ORDER = [_BuilderType.default.POLYGON, _BuilderType.default.CIRCLE, _BuilderType.default.LINE_STRING, _BuilderType.default.IMAGE, _BuilderType.default.TEXT, _BuilderType.default.DEFAULT];
+
+var ExecutorGroup =
+/** @class */
+function () {
+ /**
+ * @param {import("../../extent.js").Extent} maxExtent Max extent for clipping. When a
+ * `maxExtent` was set on the Buillder for this executor group, the same `maxExtent`
+ * should be set here, unless the target context does not exceet that extent (which
+ * can be the case when rendering to tiles).
+ * @param {number} resolution Resolution.
+ * @param {number} pixelRatio Pixel ratio.
+ * @param {boolean} overlaps The executor group can have overlapping geometries.
+ * @param {!Object<string, !Object<import("./BuilderType.js").default, import("./Builder.js").SerializableInstructions>>} allInstructions
+ * The serializable instructions.
+ * @param {number=} opt_renderBuffer Optional rendering buffer.
+ */
+ function ExecutorGroup(maxExtent, resolution, pixelRatio, overlaps, allInstructions, opt_renderBuffer) {
+ /**
+ * @private
+ * @type {import("../../extent.js").Extent}
+ */
+ this.maxExtent_ = maxExtent;
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ this.overlaps_ = overlaps;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ this.pixelRatio_ = pixelRatio;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ this.resolution_ = resolution;
+ /**
+ * @private
+ * @type {number|undefined}
+ */
+
+ this.renderBuffer_ = opt_renderBuffer;
+ /**
+ * @private
+ * @type {!Object<string, !Object<import("./BuilderType.js").default, import("./Executor").default>>}
+ */
+
+ this.executorsByZIndex_ = {};
+ /**
+ * @private
+ * @type {CanvasRenderingContext2D}
+ */
+
+ this.hitDetectionContext_ = null;
+ /**
+ * @private
+ * @type {import("../../transform.js").Transform}
+ */
+
+ this.hitDetectionTransform_ = (0, _transform.create)();
+ this.createExecutors_(allInstructions);
+ }
+ /**
+ * @param {CanvasRenderingContext2D} context Context.
+ * @param {import("../../transform.js").Transform} transform Transform.
+ */
+
+
+ ExecutorGroup.prototype.clip = function (context, transform) {
+ var flatClipCoords = this.getClipCoords(transform);
+ context.beginPath();
+ context.moveTo(flatClipCoords[0], flatClipCoords[1]);
+ context.lineTo(flatClipCoords[2], flatClipCoords[3]);
+ context.lineTo(flatClipCoords[4], flatClipCoords[5]);
+ context.lineTo(flatClipCoords[6], flatClipCoords[7]);
+ context.clip();
+ };
+ /**
+ * Create executors and populate them using the provided instructions.
+ * @private
+ * @param {!Object<string, !Object<import("./BuilderType.js").default, import("./Builder.js").SerializableInstructions>>} allInstructions The serializable instructions
+ */
+
+
+ ExecutorGroup.prototype.createExecutors_ = function (allInstructions) {
+ for (var zIndex in allInstructions) {
+ var executors = this.executorsByZIndex_[zIndex];
+
+ if (executors === undefined) {
+ executors = {};
+ this.executorsByZIndex_[zIndex] = executors;
+ }
+
+ var instructionByZindex = allInstructions[zIndex];
+ var renderBuffer = [this.renderBuffer_ || 0, this.renderBuffer_ || 0];
+
+ for (var builderType in instructionByZindex) {
+ var instructions = instructionByZindex[builderType];
+ executors[builderType] = new _Executor.default(this.resolution_, this.pixelRatio_, this.overlaps_, instructions, renderBuffer);
+ }
+ }
+ };
+ /**
+ * @param {Array<import("./BuilderType.js").default>} executors Executors.
+ * @return {boolean} Has executors of the provided types.
+ */
+
+
+ ExecutorGroup.prototype.hasExecutors = function (executors) {
+ for (var zIndex in this.executorsByZIndex_) {
+ var candidates = this.executorsByZIndex_[zIndex];
+
+ for (var i = 0, ii = executors.length; i < ii; ++i) {
+ if (executors[i] in candidates) {
+ return true;
+ }
+ }
+ }
+
+ return false;
+ };
+ /**
+ * @param {import("../../coordinate.js").Coordinate} coordinate Coordinate.
+ * @param {number} resolution Resolution.
+ * @param {number} rotation Rotation.
+ * @param {number} hitTolerance Hit tolerance in pixels.
+ * @param {function(import("../../Feature.js").FeatureLike): T} callback Feature callback.
+ * @param {Array<import("../../Feature.js").FeatureLike>} declutteredFeatures Decluttered features.
+ * @return {T|undefined} Callback result.
+ * @template T
+ */
+
+
+ ExecutorGroup.prototype.forEachFeatureAtCoordinate = function (coordinate, resolution, rotation, hitTolerance, callback, declutteredFeatures) {
+ hitTolerance = Math.round(hitTolerance);
+ var contextSize = hitTolerance * 2 + 1;
+ var transform = (0, _transform.compose)(this.hitDetectionTransform_, hitTolerance + 0.5, hitTolerance + 0.5, 1 / resolution, -1 / resolution, -rotation, -coordinate[0], -coordinate[1]);
+
+ if (!this.hitDetectionContext_) {
+ this.hitDetectionContext_ = (0, _dom.createCanvasContext2D)(contextSize, contextSize);
+ }
+
+ var context = this.hitDetectionContext_;
+
+ if (context.canvas.width !== contextSize || context.canvas.height !== contextSize) {
+ context.canvas.width = contextSize;
+ context.canvas.height = contextSize;
+ } else {
+ context.clearRect(0, 0, contextSize, contextSize);
+ }
+ /**
+ * @type {import("../../extent.js").Extent}
+ */
+
+
+ var hitExtent;
+
+ if (this.renderBuffer_ !== undefined) {
+ hitExtent = (0, _extent.createEmpty)();
+ (0, _extent.extendCoordinate)(hitExtent, coordinate);
+ (0, _extent.buffer)(hitExtent, resolution * (this.renderBuffer_ + hitTolerance), hitExtent);
+ }
+
+ var mask = getCircleArray(hitTolerance);
+ var builderType;
+ /**
+ * @param {import("../../Feature.js").FeatureLike} feature Feature.
+ * @return {?} Callback result.
+ */
+
+ function featureCallback(feature) {
+ var imageData = context.getImageData(0, 0, contextSize, contextSize).data;
+
+ for (var i_1 = 0; i_1 < contextSize; i_1++) {
+ for (var j_1 = 0; j_1 < contextSize; j_1++) {
+ if (mask[i_1][j_1]) {
+ if (imageData[(j_1 * contextSize + i_1) * 4 + 3] > 0) {
+ var result_1 = void 0;
+
+ if (!(declutteredFeatures && (builderType == _BuilderType.default.IMAGE || builderType == _BuilderType.default.TEXT)) || declutteredFeatures.indexOf(feature) !== -1) {
+ result_1 = callback(feature);
+ }
+
+ if (result_1) {
+ return result_1;
+ } else {
+ context.clearRect(0, 0, contextSize, contextSize);
+ return undefined;
+ }
+ }
+ }
+ }
+ }
+ }
+ /** @type {Array<number>} */
+
+
+ var zs = Object.keys(this.executorsByZIndex_).map(Number);
+ zs.sort(_array.numberSafeCompareFunction);
+ var i, j, executors, executor, result;
+
+ for (i = zs.length - 1; i >= 0; --i) {
+ var zIndexKey = zs[i].toString();
+ executors = this.executorsByZIndex_[zIndexKey];
+
+ for (j = ORDER.length - 1; j >= 0; --j) {
+ builderType = ORDER[j];
+ executor = executors[builderType];
+
+ if (executor !== undefined) {
+ result = executor.executeHitDetection(context, transform, rotation, featureCallback, hitExtent);
+
+ if (result) {
+ return result;
+ }
+ }
+ }
+ }
+
+ return undefined;
+ };
+ /**
+ * @param {import("../../transform.js").Transform} transform Transform.
+ * @return {Array<number>} Clip coordinates.
+ */
+
+
+ ExecutorGroup.prototype.getClipCoords = function (transform) {
+ var maxExtent = this.maxExtent_;
+
+ if (!maxExtent) {
+ return null;
+ }
+
+ var minX = maxExtent[0];
+ var minY = maxExtent[1];
+ var maxX = maxExtent[2];
+ var maxY = maxExtent[3];
+ var flatClipCoords = [minX, minY, minX, maxY, maxX, maxY, maxX, minY];
+ (0, _transform2.transform2D)(flatClipCoords, 0, 8, 2, transform, flatClipCoords);
+ return flatClipCoords;
+ };
+ /**
+ * @return {boolean} Is empty.
+ */
+
+
+ ExecutorGroup.prototype.isEmpty = function () {
+ return (0, _obj.isEmpty)(this.executorsByZIndex_);
+ };
+ /**
+ * @param {CanvasRenderingContext2D} context Context.
+ * @param {number} contextScale Scale of the context.
+ * @param {import("../../transform.js").Transform} transform Transform.
+ * @param {number} viewRotation View rotation.
+ * @param {boolean} snapToPixel Snap point symbols and test to integer pixel.
+ * @param {Array<import("./BuilderType.js").default>=} opt_builderTypes Ordered replay types to replay.
+ * Default is {@link module:ol/render/replay~ORDER}
+ * @param {Object<string, import("../canvas.js").DeclutterGroup>=} opt_declutterReplays Declutter replays.
+ */
+
+
+ ExecutorGroup.prototype.execute = function (context, contextScale, transform, viewRotation, snapToPixel, opt_builderTypes, opt_declutterReplays) {
+ /** @type {Array<number>} */
+ var zs = Object.keys(this.executorsByZIndex_).map(Number);
+ zs.sort(_array.numberSafeCompareFunction); // setup clipping so that the parts of over-simplified geometries are not
+ // visible outside the current extent when panning
+
+ if (this.maxExtent_) {
+ context.save();
+ this.clip(context, transform);
+ }
+
+ var builderTypes = opt_builderTypes ? opt_builderTypes : ORDER;
+ var i, ii, j, jj, replays, replay;
+
+ for (i = 0, ii = zs.length; i < ii; ++i) {
+ var zIndexKey = zs[i].toString();
+ replays = this.executorsByZIndex_[zIndexKey];
+
+ for (j = 0, jj = builderTypes.length; j < jj; ++j) {
+ var builderType = builderTypes[j];
+ replay = replays[builderType];
+
+ if (replay !== undefined) {
+ if (opt_declutterReplays && (builderType == _BuilderType.default.IMAGE || builderType == _BuilderType.default.TEXT)) {
+ var declutter = opt_declutterReplays[zIndexKey];
+
+ if (!declutter) {
+ opt_declutterReplays[zIndexKey] = [replay, transform.slice(0)];
+ } else {
+ declutter.push(replay, transform.slice(0));
+ }
+ } else {
+ replay.execute(context, contextScale, transform, viewRotation, snapToPixel);
+ }
+ }
+ }
+ }
+
+ if (this.maxExtent_) {
+ context.restore();
+ }
+ };
+
+ return ExecutorGroup;
+}();
+/**
+ * This cache is used for storing calculated pixel circles for increasing performance.
+ * It is a static property to allow each Replaygroup to access it.
+ * @type {Object<number, Array<Array<(boolean|undefined)>>>}
+ */
+
+
+var circleArrayCache = {
+ 0: [[true]]
+};
+/**
+ * This method fills a row in the array from the given coordinate to the
+ * middle with `true`.
+ * @param {Array<Array<(boolean|undefined)>>} array The array that will be altered.
+ * @param {number} x X coordinate.
+ * @param {number} y Y coordinate.
+ */
+
+function fillCircleArrayRowToMiddle(array, x, y) {
+ var i;
+ var radius = Math.floor(array.length / 2);
+
+ if (x >= radius) {
+ for (i = radius; i < x; i++) {
+ array[i][y] = true;
+ }
+ } else if (x < radius) {
+ for (i = x + 1; i < radius; i++) {
+ array[i][y] = true;
+ }
+ }
+}
+/**
+ * This methods creates a circle inside a fitting array. Points inside the
+ * circle are marked by true, points on the outside are undefined.
+ * It uses the midpoint circle algorithm.
+ * A cache is used to increase performance.
+ * @param {number} radius Radius.
+ * @returns {Array<Array<(boolean|undefined)>>} An array with marked circle points.
+ */
+
+
+function getCircleArray(radius) {
+ if (circleArrayCache[radius] !== undefined) {
+ return circleArrayCache[radius];
+ }
+
+ var arraySize = radius * 2 + 1;
+ var arr = new Array(arraySize);
+
+ for (var i = 0; i < arraySize; i++) {
+ arr[i] = new Array(arraySize);
+ }
+
+ var x = radius;
+ var y = 0;
+ var error = 0;
+
+ while (x >= y) {
+ fillCircleArrayRowToMiddle(arr, radius + x, radius + y);
+ fillCircleArrayRowToMiddle(arr, radius + y, radius + x);
+ fillCircleArrayRowToMiddle(arr, radius - y, radius + x);
+ fillCircleArrayRowToMiddle(arr, radius - x, radius + y);
+ fillCircleArrayRowToMiddle(arr, radius - x, radius - y);
+ fillCircleArrayRowToMiddle(arr, radius - y, radius - x);
+ fillCircleArrayRowToMiddle(arr, radius + y, radius - x);
+ fillCircleArrayRowToMiddle(arr, radius + x, radius - y);
+ y++;
+ error += 1 + 2 * y;
+
+ if (2 * (error - x) + 1 > 0) {
+ x -= 1;
+ error += 1 - 2 * x;
+ }
+ }
+
+ circleArrayCache[radius] = arr;
+ return arr;
+}
+/**
+ * @param {!Object<string, Array<*>>} declutterReplays Declutter replays.
+ * @param {CanvasRenderingContext2D} context Context.
+ * @param {number} rotation Rotation.
+ * @param {number} opacity Opacity.
+ * @param {boolean} snapToPixel Snap point symbols and text to integer pixels.
+ * @param {Array<import("../../PluggableMap.js").DeclutterItems>} declutterItems Declutter items.
+ */
+
+
+function replayDeclutter(declutterReplays, context, rotation, opacity, snapToPixel, declutterItems) {
+ var zs = Object.keys(declutterReplays).map(Number).sort(_array.numberSafeCompareFunction);
+
+ for (var z = 0, zz = zs.length; z < zz; ++z) {
+ var executorData = declutterReplays[zs[z].toString()];
+ var currentExecutor = void 0;
+
+ for (var i = 0, ii = executorData.length; i < ii;) {
+ var executor = executorData[i++];
+ var transform = executorData[i++];
+ executor.execute(context, 1, transform, rotation, snapToPixel);
+
+ if (executor !== currentExecutor && executor.declutterItems.length > 0) {
+ currentExecutor = executor;
+ declutterItems.push({
+ items: executor.declutterItems,
+ opacity: opacity
+ });
+ }
+ }
+ }
+}
+
+var _default = ExecutorGroup;
+exports.default = _default;
+},{"./BuilderType.js":"../../../node_modules/ol/render/canvas/BuilderType.js","./Executor.js":"../../../node_modules/ol/render/canvas/Executor.js","../../extent.js":"../../../node_modules/ol/extent.js","../../transform.js":"../../../node_modules/ol/transform.js","../../dom.js":"../../../node_modules/ol/dom.js","../../obj.js":"../../../node_modules/ol/obj.js","../../array.js":"../../../node_modules/ol/array.js","../../geom/flat/transform.js":"../../../node_modules/ol/geom/flat/transform.js"}],"../../../node_modules/ol/ViewHint.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+/**
+ * @module ol/ViewHint
+ */
+
+/**
+ * @enum {number}
+ */
+var _default = {
+ ANIMATING: 0,
+ INTERACTING: 1
+};
+exports.default = _default;
+},{}],"../../../node_modules/ol/render/canvas/Immediate.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _GeometryType = _interopRequireDefault(require("../../geom/GeometryType.js"));
+
+var _VectorContext = _interopRequireDefault(require("../VectorContext.js"));
+
+var _colorlike = require("../../colorlike.js");
+
+var _transform = require("../../transform.js");
+
+var _canvas = require("../canvas.js");
+
+var _array = require("../../array.js");
+
+var _extent = require("../../extent.js");
+
+var _transform2 = require("../../geom/flat/transform.js");
+
+var _SimpleGeometry = require("../../geom/SimpleGeometry.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module ol/render/canvas/Immediate
+ */
+// FIXME test, especially polygons with holes and multipolygons
+// FIXME need to handle large thick features (where pixel size matters)
+// FIXME add offset and end to ol/geom/flat/transform~transform2D?
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+
+/**
+ * @classdesc
+ * A concrete subclass of {@link module:ol/render/VectorContext} that implements
+ * direct rendering of features and geometries to an HTML5 Canvas context.
+ * Instances of this class are created internally by the library and
+ * provided to application code as vectorContext member of the
+ * {@link module:ol/render/Event~RenderEvent} object associated with postcompose, precompose and
+ * render events emitted by layers and maps.
+ */
+var CanvasImmediateRenderer =
+/** @class */
+function (_super) {
+ __extends(CanvasImmediateRenderer, _super);
+ /**
+ * @param {CanvasRenderingContext2D} context Context.
+ * @param {number} pixelRatio Pixel ratio.
+ * @param {import("../../extent.js").Extent} extent Extent.
+ * @param {import("../../transform.js").Transform} transform Transform.
+ * @param {number} viewRotation View rotation.
+ * @param {number=} opt_squaredTolerance Optional squared tolerance for simplification.
+ * @param {import("../../proj.js").TransformFunction=} opt_userTransform Transform from user to view projection.
+ */
+
+
+ function CanvasImmediateRenderer(context, pixelRatio, extent, transform, viewRotation, opt_squaredTolerance, opt_userTransform) {
+ var _this = _super.call(this) || this;
+ /**
+ * @private
+ * @type {CanvasRenderingContext2D}
+ */
+
+
+ _this.context_ = context;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.pixelRatio_ = pixelRatio;
+ /**
+ * @private
+ * @type {import("../../extent.js").Extent}
+ */
+
+ _this.extent_ = extent;
+ /**
+ * @private
+ * @type {import("../../transform.js").Transform}
+ */
+
+ _this.transform_ = transform;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.viewRotation_ = viewRotation;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.squaredTolerance_ = opt_squaredTolerance;
+ /**
+ * @private
+ * @type {import("../../proj.js").TransformFunction}
+ */
+
+ _this.userTransform_ = opt_userTransform;
+ /**
+ * @private
+ * @type {?import("../canvas.js").FillState}
+ */
+
+ _this.contextFillState_ = null;
+ /**
+ * @private
+ * @type {?import("../canvas.js").StrokeState}
+ */
+
+ _this.contextStrokeState_ = null;
+ /**
+ * @private
+ * @type {?import("../canvas.js").TextState}
+ */
+
+ _this.contextTextState_ = null;
+ /**
+ * @private
+ * @type {?import("../canvas.js").FillState}
+ */
+
+ _this.fillState_ = null;
+ /**
+ * @private
+ * @type {?import("../canvas.js").StrokeState}
+ */
+
+ _this.strokeState_ = null;
+ /**
+ * @private
+ * @type {HTMLCanvasElement|HTMLVideoElement|HTMLImageElement}
+ */
+
+ _this.image_ = null;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.imageAnchorX_ = 0;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.imageAnchorY_ = 0;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.imageHeight_ = 0;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.imageOpacity_ = 0;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.imageOriginX_ = 0;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.imageOriginY_ = 0;
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ _this.imageRotateWithView_ = false;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.imageRotation_ = 0;
+ /**
+ * @private
+ * @type {import("../../size.js").Size}
+ */
+
+ _this.imageScale_ = [0, 0];
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.imageWidth_ = 0;
+ /**
+ * @private
+ * @type {string}
+ */
+
+ _this.text_ = '';
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.textOffsetX_ = 0;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.textOffsetY_ = 0;
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ _this.textRotateWithView_ = false;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.textRotation_ = 0;
+ /**
+ * @private
+ * @type {import("../../size.js").Size}
+ */
+
+ _this.textScale_ = [0, 0];
+ /**
+ * @private
+ * @type {?import("../canvas.js").FillState}
+ */
+
+ _this.textFillState_ = null;
+ /**
+ * @private
+ * @type {?import("../canvas.js").StrokeState}
+ */
+
+ _this.textStrokeState_ = null;
+ /**
+ * @private
+ * @type {?import("../canvas.js").TextState}
+ */
+
+ _this.textState_ = null;
+ /**
+ * @private
+ * @type {Array<number>}
+ */
+
+ _this.pixelCoordinates_ = [];
+ /**
+ * @private
+ * @type {import("../../transform.js").Transform}
+ */
+
+ _this.tmpLocalTransform_ = (0, _transform.create)();
+ return _this;
+ }
+ /**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @private
+ */
+
+
+ CanvasImmediateRenderer.prototype.drawImages_ = function (flatCoordinates, offset, end, stride) {
+ if (!this.image_) {
+ return;
+ }
+
+ var pixelCoordinates = (0, _transform2.transform2D)(flatCoordinates, offset, end, 2, this.transform_, this.pixelCoordinates_);
+ var context = this.context_;
+ var localTransform = this.tmpLocalTransform_;
+ var alpha = context.globalAlpha;
+
+ if (this.imageOpacity_ != 1) {
+ context.globalAlpha = alpha * this.imageOpacity_;
+ }
+
+ var rotation = this.imageRotation_;
+
+ if (this.imageRotateWithView_) {
+ rotation += this.viewRotation_;
+ }
+
+ for (var i = 0, ii = pixelCoordinates.length; i < ii; i += 2) {
+ var x = pixelCoordinates[i] - this.imageAnchorX_;
+ var y = pixelCoordinates[i + 1] - this.imageAnchorY_;
+
+ if (rotation !== 0 || this.imageScale_[0] != 1 || this.imageScale_[1] != 1) {
+ var centerX = x + this.imageAnchorX_;
+ var centerY = y + this.imageAnchorY_;
+ (0, _transform.compose)(localTransform, centerX, centerY, 1, 1, rotation, -centerX, -centerY);
+ context.setTransform.apply(context, localTransform);
+ context.translate(centerX, centerY);
+ context.scale(this.imageScale_[0], this.imageScale_[1]);
+ context.drawImage(this.image_, this.imageOriginX_, this.imageOriginY_, this.imageWidth_, this.imageHeight_, -this.imageAnchorX_, -this.imageAnchorY_, this.imageWidth_, this.imageHeight_);
+ context.setTransform(1, 0, 0, 1, 0, 0);
+ } else {
+ context.drawImage(this.image_, this.imageOriginX_, this.imageOriginY_, this.imageWidth_, this.imageHeight_, x, y, this.imageWidth_, this.imageHeight_);
+ }
+ }
+
+ if (this.imageOpacity_ != 1) {
+ context.globalAlpha = alpha;
+ }
+ };
+ /**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @private
+ */
+
+
+ CanvasImmediateRenderer.prototype.drawText_ = function (flatCoordinates, offset, end, stride) {
+ if (!this.textState_ || this.text_ === '') {
+ return;
+ }
+
+ if (this.textFillState_) {
+ this.setContextFillState_(this.textFillState_);
+ }
+
+ if (this.textStrokeState_) {
+ this.setContextStrokeState_(this.textStrokeState_);
+ }
+
+ this.setContextTextState_(this.textState_);
+ var pixelCoordinates = (0, _transform2.transform2D)(flatCoordinates, offset, end, stride, this.transform_, this.pixelCoordinates_);
+ var context = this.context_;
+ var rotation = this.textRotation_;
+
+ if (this.textRotateWithView_) {
+ rotation += this.viewRotation_;
+ }
+
+ for (; offset < end; offset += stride) {
+ var x = pixelCoordinates[offset] + this.textOffsetX_;
+ var y = pixelCoordinates[offset + 1] + this.textOffsetY_;
+
+ if (rotation !== 0 || this.textScale_[0] != 1 || this.textScale_[1] != 1) {
+ var localTransform = (0, _transform.compose)(this.tmpLocalTransform_, x, y, 1, 1, rotation, -x, -y);
+ context.setTransform.apply(context, localTransform);
+ context.translate(x, y);
+ context.scale(this.textScale_[0], this.textScale_[1]);
+
+ if (this.textStrokeState_) {
+ context.strokeText(this.text_, 0, 0);
+ }
+
+ if (this.textFillState_) {
+ context.fillText(this.text_, 0, 0);
+ }
+
+ context.setTransform(1, 0, 0, 1, 0, 0);
+ } else {
+ if (this.textStrokeState_) {
+ context.strokeText(this.text_, x, y);
+ }
+
+ if (this.textFillState_) {
+ context.fillText(this.text_, x, y);
+ }
+ }
+ }
+ };
+ /**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @param {boolean} close Close.
+ * @private
+ * @return {number} end End.
+ */
+
+
+ CanvasImmediateRenderer.prototype.moveToLineTo_ = function (flatCoordinates, offset, end, stride, close) {
+ var context = this.context_;
+ var pixelCoordinates = (0, _transform2.transform2D)(flatCoordinates, offset, end, stride, this.transform_, this.pixelCoordinates_);
+ context.moveTo(pixelCoordinates[0], pixelCoordinates[1]);
+ var length = pixelCoordinates.length;
+
+ if (close) {
+ length -= 2;
+ }
+
+ for (var i = 2; i < length; i += 2) {
+ context.lineTo(pixelCoordinates[i], pixelCoordinates[i + 1]);
+ }
+
+ if (close) {
+ context.closePath();
+ }
+
+ return end;
+ };
+ /**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {Array<number>} ends Ends.
+ * @param {number} stride Stride.
+ * @private
+ * @return {number} End.
+ */
+
+
+ CanvasImmediateRenderer.prototype.drawRings_ = function (flatCoordinates, offset, ends, stride) {
+ for (var i = 0, ii = ends.length; i < ii; ++i) {
+ offset = this.moveToLineTo_(flatCoordinates, offset, ends[i], stride, true);
+ }
+
+ return offset;
+ };
+ /**
+ * Render a circle geometry into the canvas. Rendering is immediate and uses
+ * the current fill and stroke styles.
+ *
+ * @param {import("../../geom/Circle.js").default} geometry Circle geometry.
+ * @api
+ */
+
+
+ CanvasImmediateRenderer.prototype.drawCircle = function (geometry) {
+ if (!(0, _extent.intersects)(this.extent_, geometry.getExtent())) {
+ return;
+ }
+
+ if (this.fillState_ || this.strokeState_) {
+ if (this.fillState_) {
+ this.setContextFillState_(this.fillState_);
+ }
+
+ if (this.strokeState_) {
+ this.setContextStrokeState_(this.strokeState_);
+ }
+
+ var pixelCoordinates = (0, _SimpleGeometry.transformGeom2D)(geometry, this.transform_, this.pixelCoordinates_);
+ var dx = pixelCoordinates[2] - pixelCoordinates[0];
+ var dy = pixelCoordinates[3] - pixelCoordinates[1];
+ var radius = Math.sqrt(dx * dx + dy * dy);
+ var context = this.context_;
+ context.beginPath();
+ context.arc(pixelCoordinates[0], pixelCoordinates[1], radius, 0, 2 * Math.PI);
+
+ if (this.fillState_) {
+ context.fill();
+ }
+
+ if (this.strokeState_) {
+ context.stroke();
+ }
+ }
+
+ if (this.text_ !== '') {
+ this.drawText_(geometry.getCenter(), 0, 2, 2);
+ }
+ };
+ /**
+ * Set the rendering style. Note that since this is an immediate rendering API,
+ * any `zIndex` on the provided style will be ignored.
+ *
+ * @param {import("../../style/Style.js").default} style The rendering style.
+ * @api
+ */
+
+
+ CanvasImmediateRenderer.prototype.setStyle = function (style) {
+ this.setFillStrokeStyle(style.getFill(), style.getStroke());
+ this.setImageStyle(style.getImage());
+ this.setTextStyle(style.getText());
+ };
+ /**
+ * @param {import("../../transform.js").Transform} transform Transform.
+ */
+
+
+ CanvasImmediateRenderer.prototype.setTransform = function (transform) {
+ this.transform_ = transform;
+ };
+ /**
+ * Render a geometry into the canvas. Call
+ * {@link module:ol/render/canvas/Immediate#setStyle} first to set the rendering style.
+ *
+ * @param {import("../../geom/Geometry.js").default|import("../Feature.js").default} geometry The geometry to render.
+ * @api
+ */
+
+
+ CanvasImmediateRenderer.prototype.drawGeometry = function (geometry) {
+ var type = geometry.getType();
+
+ switch (type) {
+ case _GeometryType.default.POINT:
+ this.drawPoint(
+ /** @type {import("../../geom/Point.js").default} */
+ geometry);
+ break;
+
+ case _GeometryType.default.LINE_STRING:
+ this.drawLineString(
+ /** @type {import("../../geom/LineString.js").default} */
+ geometry);
+ break;
+
+ case _GeometryType.default.POLYGON:
+ this.drawPolygon(
+ /** @type {import("../../geom/Polygon.js").default} */
+ geometry);
+ break;
+
+ case _GeometryType.default.MULTI_POINT:
+ this.drawMultiPoint(
+ /** @type {import("../../geom/MultiPoint.js").default} */
+ geometry);
+ break;
+
+ case _GeometryType.default.MULTI_LINE_STRING:
+ this.drawMultiLineString(
+ /** @type {import("../../geom/MultiLineString.js").default} */
+ geometry);
+ break;
+
+ case _GeometryType.default.MULTI_POLYGON:
+ this.drawMultiPolygon(
+ /** @type {import("../../geom/MultiPolygon.js").default} */
+ geometry);
+ break;
+
+ case _GeometryType.default.GEOMETRY_COLLECTION:
+ this.drawGeometryCollection(
+ /** @type {import("../../geom/GeometryCollection.js").default} */
+ geometry);
+ break;
+
+ case _GeometryType.default.CIRCLE:
+ this.drawCircle(
+ /** @type {import("../../geom/Circle.js").default} */
+ geometry);
+ break;
+
+ default:
+ }
+ };
+ /**
+ * Render a feature into the canvas. Note that any `zIndex` on the provided
+ * style will be ignored - features are rendered immediately in the order that
+ * this method is called. If you need `zIndex` support, you should be using an
+ * {@link module:ol/layer/Vector~VectorLayer} instead.
+ *
+ * @param {import("../../Feature.js").default} feature Feature.
+ * @param {import("../../style/Style.js").default} style Style.
+ * @api
+ */
+
+
+ CanvasImmediateRenderer.prototype.drawFeature = function (feature, style) {
+ var geometry = style.getGeometryFunction()(feature);
+
+ if (!geometry || !(0, _extent.intersects)(this.extent_, geometry.getExtent())) {
+ return;
+ }
+
+ this.setStyle(style);
+ this.drawGeometry(geometry);
+ };
+ /**
+ * Render a GeometryCollection to the canvas. Rendering is immediate and
+ * uses the current styles appropriate for each geometry in the collection.
+ *
+ * @param {import("../../geom/GeometryCollection.js").default} geometry Geometry collection.
+ */
+
+
+ CanvasImmediateRenderer.prototype.drawGeometryCollection = function (geometry) {
+ var geometries = geometry.getGeometriesArray();
+
+ for (var i = 0, ii = geometries.length; i < ii; ++i) {
+ this.drawGeometry(geometries[i]);
+ }
+ };
+ /**
+ * Render a Point geometry into the canvas. Rendering is immediate and uses
+ * the current style.
+ *
+ * @param {import("../../geom/Point.js").default|import("../Feature.js").default} geometry Point geometry.
+ */
+
+
+ CanvasImmediateRenderer.prototype.drawPoint = function (geometry) {
+ if (this.squaredTolerance_) {
+ geometry =
+ /** @type {import("../../geom/Point.js").default} */
+ geometry.simplifyTransformed(this.squaredTolerance_, this.userTransform_);
+ }
+
+ var flatCoordinates = geometry.getFlatCoordinates();
+ var stride = geometry.getStride();
+
+ if (this.image_) {
+ this.drawImages_(flatCoordinates, 0, flatCoordinates.length, stride);
+ }
+
+ if (this.text_ !== '') {
+ this.drawText_(flatCoordinates, 0, flatCoordinates.length, stride);
+ }
+ };
+ /**
+ * Render a MultiPoint geometry into the canvas. Rendering is immediate and
+ * uses the current style.
+ *
+ * @param {import("../../geom/MultiPoint.js").default|import("../Feature.js").default} geometry MultiPoint geometry.
+ */
+
+
+ CanvasImmediateRenderer.prototype.drawMultiPoint = function (geometry) {
+ if (this.squaredTolerance_) {
+ geometry =
+ /** @type {import("../../geom/MultiPoint.js").default} */
+ geometry.simplifyTransformed(this.squaredTolerance_, this.userTransform_);
+ }
+
+ var flatCoordinates = geometry.getFlatCoordinates();
+ var stride = geometry.getStride();
+
+ if (this.image_) {
+ this.drawImages_(flatCoordinates, 0, flatCoordinates.length, stride);
+ }
+
+ if (this.text_ !== '') {
+ this.drawText_(flatCoordinates, 0, flatCoordinates.length, stride);
+ }
+ };
+ /**
+ * Render a LineString into the canvas. Rendering is immediate and uses
+ * the current style.
+ *
+ * @param {import("../../geom/LineString.js").default|import("../Feature.js").default} geometry LineString geometry.
+ */
+
+
+ CanvasImmediateRenderer.prototype.drawLineString = function (geometry) {
+ if (this.squaredTolerance_) {
+ geometry =
+ /** @type {import("../../geom/LineString.js").default} */
+ geometry.simplifyTransformed(this.squaredTolerance_, this.userTransform_);
+ }
+
+ if (!(0, _extent.intersects)(this.extent_, geometry.getExtent())) {
+ return;
+ }
+
+ if (this.strokeState_) {
+ this.setContextStrokeState_(this.strokeState_);
+ var context = this.context_;
+ var flatCoordinates = geometry.getFlatCoordinates();
+ context.beginPath();
+ this.moveToLineTo_(flatCoordinates, 0, flatCoordinates.length, geometry.getStride(), false);
+ context.stroke();
+ }
+
+ if (this.text_ !== '') {
+ var flatMidpoint = geometry.getFlatMidpoint();
+ this.drawText_(flatMidpoint, 0, 2, 2);
+ }
+ };
+ /**
+ * Render a MultiLineString geometry into the canvas. Rendering is immediate
+ * and uses the current style.
+ *
+ * @param {import("../../geom/MultiLineString.js").default|import("../Feature.js").default} geometry MultiLineString geometry.
+ */
+
+
+ CanvasImmediateRenderer.prototype.drawMultiLineString = function (geometry) {
+ if (this.squaredTolerance_) {
+ geometry =
+ /** @type {import("../../geom/MultiLineString.js").default} */
+ geometry.simplifyTransformed(this.squaredTolerance_, this.userTransform_);
+ }
+
+ var geometryExtent = geometry.getExtent();
+
+ if (!(0, _extent.intersects)(this.extent_, geometryExtent)) {
+ return;
+ }
+
+ if (this.strokeState_) {
+ this.setContextStrokeState_(this.strokeState_);
+ var context = this.context_;
+ var flatCoordinates = geometry.getFlatCoordinates();
+ var offset = 0;
+ var ends =
+ /** @type {Array<number>} */
+ geometry.getEnds();
+ var stride = geometry.getStride();
+ context.beginPath();
+
+ for (var i = 0, ii = ends.length; i < ii; ++i) {
+ offset = this.moveToLineTo_(flatCoordinates, offset, ends[i], stride, false);
+ }
+
+ context.stroke();
+ }
+
+ if (this.text_ !== '') {
+ var flatMidpoints = geometry.getFlatMidpoints();
+ this.drawText_(flatMidpoints, 0, flatMidpoints.length, 2);
+ }
+ };
+ /**
+ * Render a Polygon geometry into the canvas. Rendering is immediate and uses
+ * the current style.
+ *
+ * @param {import("../../geom/Polygon.js").default|import("../Feature.js").default} geometry Polygon geometry.
+ */
+
+
+ CanvasImmediateRenderer.prototype.drawPolygon = function (geometry) {
+ if (this.squaredTolerance_) {
+ geometry =
+ /** @type {import("../../geom/Polygon.js").default} */
+ geometry.simplifyTransformed(this.squaredTolerance_, this.userTransform_);
+ }
+
+ if (!(0, _extent.intersects)(this.extent_, geometry.getExtent())) {
+ return;
+ }
+
+ if (this.strokeState_ || this.fillState_) {
+ if (this.fillState_) {
+ this.setContextFillState_(this.fillState_);
+ }
+
+ if (this.strokeState_) {
+ this.setContextStrokeState_(this.strokeState_);
+ }
+
+ var context = this.context_;
+ context.beginPath();
+ this.drawRings_(geometry.getOrientedFlatCoordinates(), 0,
+ /** @type {Array<number>} */
+ geometry.getEnds(), geometry.getStride());
+
+ if (this.fillState_) {
+ context.fill();
+ }
+
+ if (this.strokeState_) {
+ context.stroke();
+ }
+ }
+
+ if (this.text_ !== '') {
+ var flatInteriorPoint = geometry.getFlatInteriorPoint();
+ this.drawText_(flatInteriorPoint, 0, 2, 2);
+ }
+ };
+ /**
+ * Render MultiPolygon geometry into the canvas. Rendering is immediate and
+ * uses the current style.
+ * @param {import("../../geom/MultiPolygon.js").default} geometry MultiPolygon geometry.
+ */
+
+
+ CanvasImmediateRenderer.prototype.drawMultiPolygon = function (geometry) {
+ if (this.squaredTolerance_) {
+ geometry =
+ /** @type {import("../../geom/MultiPolygon.js").default} */
+ geometry.simplifyTransformed(this.squaredTolerance_, this.userTransform_);
+ }
+
+ if (!(0, _extent.intersects)(this.extent_, geometry.getExtent())) {
+ return;
+ }
+
+ if (this.strokeState_ || this.fillState_) {
+ if (this.fillState_) {
+ this.setContextFillState_(this.fillState_);
+ }
+
+ if (this.strokeState_) {
+ this.setContextStrokeState_(this.strokeState_);
+ }
+
+ var context = this.context_;
+ var flatCoordinates = geometry.getOrientedFlatCoordinates();
+ var offset = 0;
+ var endss = geometry.getEndss();
+ var stride = geometry.getStride();
+ context.beginPath();
+
+ for (var i = 0, ii = endss.length; i < ii; ++i) {
+ var ends = endss[i];
+ offset = this.drawRings_(flatCoordinates, offset, ends, stride);
+ }
+
+ if (this.fillState_) {
+ context.fill();
+ }
+
+ if (this.strokeState_) {
+ context.stroke();
+ }
+ }
+
+ if (this.text_ !== '') {
+ var flatInteriorPoints = geometry.getFlatInteriorPoints();
+ this.drawText_(flatInteriorPoints, 0, flatInteriorPoints.length, 2);
+ }
+ };
+ /**
+ * @param {import("../canvas.js").FillState} fillState Fill state.
+ * @private
+ */
+
+
+ CanvasImmediateRenderer.prototype.setContextFillState_ = function (fillState) {
+ var context = this.context_;
+ var contextFillState = this.contextFillState_;
+
+ if (!contextFillState) {
+ context.fillStyle = fillState.fillStyle;
+ this.contextFillState_ = {
+ fillStyle: fillState.fillStyle
+ };
+ } else {
+ if (contextFillState.fillStyle != fillState.fillStyle) {
+ contextFillState.fillStyle = fillState.fillStyle;
+ context.fillStyle = fillState.fillStyle;
+ }
+ }
+ };
+ /**
+ * @param {import("../canvas.js").StrokeState} strokeState Stroke state.
+ * @private
+ */
+
+
+ CanvasImmediateRenderer.prototype.setContextStrokeState_ = function (strokeState) {
+ var context = this.context_;
+ var contextStrokeState = this.contextStrokeState_;
+
+ if (!contextStrokeState) {
+ context.lineCap = strokeState.lineCap;
+
+ if (context.setLineDash) {
+ context.setLineDash(strokeState.lineDash);
+ context.lineDashOffset = strokeState.lineDashOffset;
+ }
+
+ context.lineJoin = strokeState.lineJoin;
+ context.lineWidth = strokeState.lineWidth;
+ context.miterLimit = strokeState.miterLimit;
+ context.strokeStyle = strokeState.strokeStyle;
+ this.contextStrokeState_ = {
+ lineCap: strokeState.lineCap,
+ lineDash: strokeState.lineDash,
+ lineDashOffset: strokeState.lineDashOffset,
+ lineJoin: strokeState.lineJoin,
+ lineWidth: strokeState.lineWidth,
+ miterLimit: strokeState.miterLimit,
+ strokeStyle: strokeState.strokeStyle
+ };
+ } else {
+ if (contextStrokeState.lineCap != strokeState.lineCap) {
+ contextStrokeState.lineCap = strokeState.lineCap;
+ context.lineCap = strokeState.lineCap;
+ }
+
+ if (context.setLineDash) {
+ if (!(0, _array.equals)(contextStrokeState.lineDash, strokeState.lineDash)) {
+ context.setLineDash(contextStrokeState.lineDash = strokeState.lineDash);
+ }
+
+ if (contextStrokeState.lineDashOffset != strokeState.lineDashOffset) {
+ contextStrokeState.lineDashOffset = strokeState.lineDashOffset;
+ context.lineDashOffset = strokeState.lineDashOffset;
+ }
+ }
+
+ if (contextStrokeState.lineJoin != strokeState.lineJoin) {
+ contextStrokeState.lineJoin = strokeState.lineJoin;
+ context.lineJoin = strokeState.lineJoin;
+ }
+
+ if (contextStrokeState.lineWidth != strokeState.lineWidth) {
+ contextStrokeState.lineWidth = strokeState.lineWidth;
+ context.lineWidth = strokeState.lineWidth;
+ }
+
+ if (contextStrokeState.miterLimit != strokeState.miterLimit) {
+ contextStrokeState.miterLimit = strokeState.miterLimit;
+ context.miterLimit = strokeState.miterLimit;
+ }
+
+ if (contextStrokeState.strokeStyle != strokeState.strokeStyle) {
+ contextStrokeState.strokeStyle = strokeState.strokeStyle;
+ context.strokeStyle = strokeState.strokeStyle;
+ }
+ }
+ };
+ /**
+ * @param {import("../canvas.js").TextState} textState Text state.
+ * @private
+ */
+
+
+ CanvasImmediateRenderer.prototype.setContextTextState_ = function (textState) {
+ var context = this.context_;
+ var contextTextState = this.contextTextState_;
+ var textAlign = textState.textAlign ? textState.textAlign : _canvas.defaultTextAlign;
+
+ if (!contextTextState) {
+ context.font = textState.font;
+ context.textAlign =
+ /** @type {CanvasTextAlign} */
+ textAlign;
+ context.textBaseline =
+ /** @type {CanvasTextBaseline} */
+ textState.textBaseline;
+ this.contextTextState_ = {
+ font: textState.font,
+ textAlign: textAlign,
+ textBaseline: textState.textBaseline
+ };
+ } else {
+ if (contextTextState.font != textState.font) {
+ contextTextState.font = textState.font;
+ context.font = textState.font;
+ }
+
+ if (contextTextState.textAlign != textAlign) {
+ contextTextState.textAlign =
+ /** @type {CanvasTextAlign} */
+ textAlign;
+ context.textAlign =
+ /** @type {CanvasTextAlign} */
+ textAlign;
+ }
+
+ if (contextTextState.textBaseline != textState.textBaseline) {
+ contextTextState.textBaseline =
+ /** @type {CanvasTextBaseline} */
+ textState.textBaseline;
+ context.textBaseline =
+ /** @type {CanvasTextBaseline} */
+ textState.textBaseline;
+ }
+ }
+ };
+ /**
+ * Set the fill and stroke style for subsequent draw operations. To clear
+ * either fill or stroke styles, pass null for the appropriate parameter.
+ *
+ * @param {import("../../style/Fill.js").default} fillStyle Fill style.
+ * @param {import("../../style/Stroke.js").default} strokeStyle Stroke style.
+ */
+
+
+ CanvasImmediateRenderer.prototype.setFillStrokeStyle = function (fillStyle, strokeStyle) {
+ if (!fillStyle) {
+ this.fillState_ = null;
+ } else {
+ var fillStyleColor = fillStyle.getColor();
+ this.fillState_ = {
+ fillStyle: (0, _colorlike.asColorLike)(fillStyleColor ? fillStyleColor : _canvas.defaultFillStyle)
+ };
+ }
+
+ if (!strokeStyle) {
+ this.strokeState_ = null;
+ } else {
+ var strokeStyleColor = strokeStyle.getColor();
+ var strokeStyleLineCap = strokeStyle.getLineCap();
+ var strokeStyleLineDash = strokeStyle.getLineDash();
+ var strokeStyleLineDashOffset = strokeStyle.getLineDashOffset();
+ var strokeStyleLineJoin = strokeStyle.getLineJoin();
+ var strokeStyleWidth = strokeStyle.getWidth();
+ var strokeStyleMiterLimit = strokeStyle.getMiterLimit();
+ this.strokeState_ = {
+ lineCap: strokeStyleLineCap !== undefined ? strokeStyleLineCap : _canvas.defaultLineCap,
+ lineDash: strokeStyleLineDash ? strokeStyleLineDash : _canvas.defaultLineDash,
+ lineDashOffset: strokeStyleLineDashOffset ? strokeStyleLineDashOffset : _canvas.defaultLineDashOffset,
+ lineJoin: strokeStyleLineJoin !== undefined ? strokeStyleLineJoin : _canvas.defaultLineJoin,
+ lineWidth: this.pixelRatio_ * (strokeStyleWidth !== undefined ? strokeStyleWidth : _canvas.defaultLineWidth),
+ miterLimit: strokeStyleMiterLimit !== undefined ? strokeStyleMiterLimit : _canvas.defaultMiterLimit,
+ strokeStyle: (0, _colorlike.asColorLike)(strokeStyleColor ? strokeStyleColor : _canvas.defaultStrokeStyle)
+ };
+ }
+ };
+ /**
+ * Set the image style for subsequent draw operations. Pass null to remove
+ * the image style.
+ *
+ * @param {import("../../style/Image.js").default} imageStyle Image style.
+ */
+
+
+ CanvasImmediateRenderer.prototype.setImageStyle = function (imageStyle) {
+ if (!imageStyle) {
+ this.image_ = null;
+ } else {
+ var imageSize = imageStyle.getSize();
+
+ if (!imageSize) {
+ this.image_ = null;
+ } else {
+ var imageAnchor = imageStyle.getAnchor(); // FIXME pixel ratio
+
+ var imageImage = imageStyle.getImage(1);
+ var imageOrigin = imageStyle.getOrigin();
+ var imageScale = imageStyle.getScaleArray();
+ this.imageAnchorX_ = imageAnchor[0];
+ this.imageAnchorY_ = imageAnchor[1];
+ this.imageHeight_ = imageSize[1];
+ this.image_ = imageImage;
+ this.imageOpacity_ = imageStyle.getOpacity();
+ this.imageOriginX_ = imageOrigin[0];
+ this.imageOriginY_ = imageOrigin[1];
+ this.imageRotateWithView_ = imageStyle.getRotateWithView();
+ this.imageRotation_ = imageStyle.getRotation();
+ this.imageScale_ = [this.pixelRatio_ * imageScale[0], this.pixelRatio_ * imageScale[1]];
+ this.imageWidth_ = imageSize[0];
+ }
+ }
+ };
+ /**
+ * Set the text style for subsequent draw operations. Pass null to
+ * remove the text style.
+ *
+ * @param {import("../../style/Text.js").default} textStyle Text style.
+ */
+
+
+ CanvasImmediateRenderer.prototype.setTextStyle = function (textStyle) {
+ if (!textStyle) {
+ this.text_ = '';
+ } else {
+ var textFillStyle = textStyle.getFill();
+
+ if (!textFillStyle) {
+ this.textFillState_ = null;
+ } else {
+ var textFillStyleColor = textFillStyle.getColor();
+ this.textFillState_ = {
+ fillStyle: (0, _colorlike.asColorLike)(textFillStyleColor ? textFillStyleColor : _canvas.defaultFillStyle)
+ };
+ }
+
+ var textStrokeStyle = textStyle.getStroke();
+
+ if (!textStrokeStyle) {
+ this.textStrokeState_ = null;
+ } else {
+ var textStrokeStyleColor = textStrokeStyle.getColor();
+ var textStrokeStyleLineCap = textStrokeStyle.getLineCap();
+ var textStrokeStyleLineDash = textStrokeStyle.getLineDash();
+ var textStrokeStyleLineDashOffset = textStrokeStyle.getLineDashOffset();
+ var textStrokeStyleLineJoin = textStrokeStyle.getLineJoin();
+ var textStrokeStyleWidth = textStrokeStyle.getWidth();
+ var textStrokeStyleMiterLimit = textStrokeStyle.getMiterLimit();
+ this.textStrokeState_ = {
+ lineCap: textStrokeStyleLineCap !== undefined ? textStrokeStyleLineCap : _canvas.defaultLineCap,
+ lineDash: textStrokeStyleLineDash ? textStrokeStyleLineDash : _canvas.defaultLineDash,
+ lineDashOffset: textStrokeStyleLineDashOffset ? textStrokeStyleLineDashOffset : _canvas.defaultLineDashOffset,
+ lineJoin: textStrokeStyleLineJoin !== undefined ? textStrokeStyleLineJoin : _canvas.defaultLineJoin,
+ lineWidth: textStrokeStyleWidth !== undefined ? textStrokeStyleWidth : _canvas.defaultLineWidth,
+ miterLimit: textStrokeStyleMiterLimit !== undefined ? textStrokeStyleMiterLimit : _canvas.defaultMiterLimit,
+ strokeStyle: (0, _colorlike.asColorLike)(textStrokeStyleColor ? textStrokeStyleColor : _canvas.defaultStrokeStyle)
+ };
+ }
+
+ var textFont = textStyle.getFont();
+ var textOffsetX = textStyle.getOffsetX();
+ var textOffsetY = textStyle.getOffsetY();
+ var textRotateWithView = textStyle.getRotateWithView();
+ var textRotation = textStyle.getRotation();
+ var textScale = textStyle.getScaleArray();
+ var textText = textStyle.getText();
+ var textTextAlign = textStyle.getTextAlign();
+ var textTextBaseline = textStyle.getTextBaseline();
+ this.textState_ = {
+ font: textFont !== undefined ? textFont : _canvas.defaultFont,
+ textAlign: textTextAlign !== undefined ? textTextAlign : _canvas.defaultTextAlign,
+ textBaseline: textTextBaseline !== undefined ? textTextBaseline : _canvas.defaultTextBaseline
+ };
+ this.text_ = textText !== undefined ? textText : '';
+ this.textOffsetX_ = textOffsetX !== undefined ? this.pixelRatio_ * textOffsetX : 0;
+ this.textOffsetY_ = textOffsetY !== undefined ? this.pixelRatio_ * textOffsetY : 0;
+ this.textRotateWithView_ = textRotateWithView !== undefined ? textRotateWithView : false;
+ this.textRotation_ = textRotation !== undefined ? textRotation : 0;
+ this.textScale_ = [this.pixelRatio_ * textScale[0], this.pixelRatio_ * textScale[1]];
+ }
+ };
+
+ return CanvasImmediateRenderer;
+}(_VectorContext.default);
+
+var _default = CanvasImmediateRenderer;
+exports.default = _default;
+},{"../../geom/GeometryType.js":"../../../node_modules/ol/geom/GeometryType.js","../VectorContext.js":"../../../node_modules/ol/render/VectorContext.js","../../colorlike.js":"../../../node_modules/ol/colorlike.js","../../transform.js":"../../../node_modules/ol/transform.js","../canvas.js":"../../../node_modules/ol/render/canvas.js","../../array.js":"../../../node_modules/ol/array.js","../../extent.js":"../../../node_modules/ol/extent.js","../../geom/flat/transform.js":"../../../node_modules/ol/geom/flat/transform.js","../../geom/SimpleGeometry.js":"../../../node_modules/ol/geom/SimpleGeometry.js"}],"../../../node_modules/ol/style/IconAnchorUnits.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+/**
+ * @module ol/style/IconAnchorUnits
+ */
+
+/**
+ * Icon anchor units. One of 'fraction', 'pixels'.
+ * @enum {string}
+ */
+var _default = {
+ /**
+ * Anchor is a fraction
+ * @api
+ */
+ FRACTION: 'fraction',
+
+ /**
+ * Anchor is in pixels
+ * @api
+ */
+ PIXELS: 'pixels'
+};
+exports.default = _default;
+},{}],"../../../node_modules/ol/style/IconOrigin.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+/**
+ * @module ol/style/IconOrigin
+ */
+
+/**
+ * Icon origin. One of 'bottom-left', 'bottom-right', 'top-left', 'top-right'.
+ * @enum {string}
+ */
+var _default = {
+ /**
+ * Origin is at bottom left
+ * @api
+ */
+ BOTTOM_LEFT: 'bottom-left',
+
+ /**
+ * Origin is at bottom right
+ * @api
+ */
+ BOTTOM_RIGHT: 'bottom-right',
+
+ /**
+ * Origin is at top left
+ * @api
+ */
+ TOP_LEFT: 'top-left',
+
+ /**
+ * Origin is at top right
+ * @api
+ */
+ TOP_RIGHT: 'top-right'
+};
+exports.default = _default;
+},{}],"../../../node_modules/ol/style/IconImageCache.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.shared = exports.default = void 0;
+
+var _color = require("../color.js");
+
+/**
+ * @module ol/style/IconImageCache
+ */
+
+/**
+ * @classdesc
+ * Singleton class. Available through {@link module:ol/style/IconImageCache~shared}.
+ */
+var IconImageCache =
+/** @class */
+function () {
+ function IconImageCache() {
+ /**
+ * @type {!Object<string, import("./IconImage.js").default>}
+ * @private
+ */
+ this.cache_ = {};
+ /**
+ * @type {number}
+ * @private
+ */
+
+ this.cacheSize_ = 0;
+ /**
+ * @type {number}
+ * @private
+ */
+
+ this.maxCacheSize_ = 32;
+ }
+ /**
+ * FIXME empty description for jsdoc
+ */
+
+
+ IconImageCache.prototype.clear = function () {
+ this.cache_ = {};
+ this.cacheSize_ = 0;
+ };
+ /**
+ * @return {boolean} Can expire cache.
+ */
+
+
+ IconImageCache.prototype.canExpireCache = function () {
+ return this.cacheSize_ > this.maxCacheSize_;
+ };
+ /**
+ * FIXME empty description for jsdoc
+ */
+
+
+ IconImageCache.prototype.expire = function () {
+ if (this.canExpireCache()) {
+ var i = 0;
+
+ for (var key in this.cache_) {
+ var iconImage = this.cache_[key];
+
+ if ((i++ & 3) === 0 && !iconImage.hasListener()) {
+ delete this.cache_[key];
+ --this.cacheSize_;
+ }
+ }
+ }
+ };
+ /**
+ * @param {string} src Src.
+ * @param {?string} crossOrigin Cross origin.
+ * @param {import("../color.js").Color} color Color.
+ * @return {import("./IconImage.js").default} Icon image.
+ */
+
+
+ IconImageCache.prototype.get = function (src, crossOrigin, color) {
+ var key = getKey(src, crossOrigin, color);
+ return key in this.cache_ ? this.cache_[key] : null;
+ };
+ /**
+ * @param {string} src Src.
+ * @param {?string} crossOrigin Cross origin.
+ * @param {import("../color.js").Color} color Color.
+ * @param {import("./IconImage.js").default} iconImage Icon image.
+ */
+
+
+ IconImageCache.prototype.set = function (src, crossOrigin, color, iconImage) {
+ var key = getKey(src, crossOrigin, color);
+ this.cache_[key] = iconImage;
+ ++this.cacheSize_;
+ };
+ /**
+ * Set the cache size of the icon cache. Default is `32`. Change this value when
+ * your map uses more than 32 different icon images and you are not caching icon
+ * styles on the application level.
+ * @param {number} maxCacheSize Cache max size.
+ * @api
+ */
+
+
+ IconImageCache.prototype.setSize = function (maxCacheSize) {
+ this.maxCacheSize_ = maxCacheSize;
+ this.expire();
+ };
+
+ return IconImageCache;
+}();
+/**
+ * @param {string} src Src.
+ * @param {?string} crossOrigin Cross origin.
+ * @param {import("../color.js").Color} color Color.
+ * @return {string} Cache key.
+ */
+
+
+function getKey(src, crossOrigin, color) {
+ var colorString = color ? (0, _color.asString)(color) : 'null';
+ return crossOrigin + ':' + src + ':' + colorString;
+}
+
+var _default = IconImageCache;
+/**
+ * The {@link module:ol/style/IconImageCache~IconImageCache} for
+ * {@link module:ol/style/Icon~Icon} images.
+ * @api
+ */
+
+exports.default = _default;
+var shared = new IconImageCache();
+exports.shared = shared;
+},{"../color.js":"../../../node_modules/ol/color.js"}],"../../../node_modules/ol/ImageBase.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Target = _interopRequireDefault(require("./events/Target.js"));
+
+var _EventType = _interopRequireDefault(require("./events/EventType.js"));
+
+var _util = require("./util.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/ImageBase
+ */
+
+
+/**
+ * @abstract
+ */
+var ImageBase =
+/** @class */
+function (_super) {
+ __extends(ImageBase, _super);
+ /**
+ * @param {import("./extent.js").Extent} extent Extent.
+ * @param {number|undefined} resolution Resolution.
+ * @param {number} pixelRatio Pixel ratio.
+ * @param {import("./ImageState.js").default} state State.
+ */
+
+
+ function ImageBase(extent, resolution, pixelRatio, state) {
+ var _this = _super.call(this) || this;
+ /**
+ * @protected
+ * @type {import("./extent.js").Extent}
+ */
+
+
+ _this.extent = extent;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.pixelRatio_ = pixelRatio;
+ /**
+ * @protected
+ * @type {number|undefined}
+ */
+
+ _this.resolution = resolution;
+ /**
+ * @protected
+ * @type {import("./ImageState.js").default}
+ */
+
+ _this.state = state;
+ return _this;
+ }
+ /**
+ * @protected
+ */
+
+
+ ImageBase.prototype.changed = function () {
+ this.dispatchEvent(_EventType.default.CHANGE);
+ };
+ /**
+ * @return {import("./extent.js").Extent} Extent.
+ */
+
+
+ ImageBase.prototype.getExtent = function () {
+ return this.extent;
+ };
+ /**
+ * @abstract
+ * @return {HTMLCanvasElement|HTMLImageElement|HTMLVideoElement} Image.
+ */
+
+
+ ImageBase.prototype.getImage = function () {
+ return (0, _util.abstract)();
+ };
+ /**
+ * @return {number} PixelRatio.
+ */
+
+
+ ImageBase.prototype.getPixelRatio = function () {
+ return this.pixelRatio_;
+ };
+ /**
+ * @return {number} Resolution.
+ */
+
+
+ ImageBase.prototype.getResolution = function () {
+ return (
+ /** @type {number} */
+ this.resolution
+ );
+ };
+ /**
+ * @return {import("./ImageState.js").default} State.
+ */
+
+
+ ImageBase.prototype.getState = function () {
+ return this.state;
+ };
+ /**
+ * Load not yet loaded URI.
+ * @abstract
+ */
+
+
+ ImageBase.prototype.load = function () {
+ (0, _util.abstract)();
+ };
+
+ return ImageBase;
+}(_Target.default);
+
+var _default = ImageBase;
+exports.default = _default;
+},{"./events/Target.js":"../../../node_modules/ol/events/Target.js","./events/EventType.js":"../../../node_modules/ol/events/EventType.js","./util.js":"../../../node_modules/ol/util.js"}],"../../../node_modules/ol/Image.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.listenImage = listenImage;
+exports.default = void 0;
+
+var _EventType = _interopRequireDefault(require("./events/EventType.js"));
+
+var _ImageBase = _interopRequireDefault(require("./ImageBase.js"));
+
+var _ImageState = _interopRequireDefault(require("./ImageState.js"));
+
+var _has = require("./has.js");
+
+var _extent = require("./extent.js");
+
+var _events = require("./events.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/Image
+ */
+
+
+/**
+ * A function that takes an {@link module:ol/Image~Image} for the image and a
+ * `{string}` for the src as arguments. It is supposed to make it so the
+ * underlying image {@link module:ol/Image~Image#getImage} is assigned the
+ * content specified by the src. If not specified, the default is
+ *
+ * function(image, src) {
+ * image.getImage().src = src;
+ * }
+ *
+ * Providing a custom `imageLoadFunction` can be useful to load images with
+ * post requests or - in general - through XHR requests, where the src of the
+ * image element would be set to a data URI when the content is loaded.
+ *
+ * @typedef {function(ImageWrapper, string): void} LoadFunction
+ * @api
+ */
+var ImageWrapper =
+/** @class */
+function (_super) {
+ __extends(ImageWrapper, _super);
+ /**
+ * @param {import("./extent.js").Extent} extent Extent.
+ * @param {number|undefined} resolution Resolution.
+ * @param {number} pixelRatio Pixel ratio.
+ * @param {string} src Image source URI.
+ * @param {?string} crossOrigin Cross origin.
+ * @param {LoadFunction} imageLoadFunction Image load function.
+ */
+
+
+ function ImageWrapper(extent, resolution, pixelRatio, src, crossOrigin, imageLoadFunction) {
+ var _this = _super.call(this, extent, resolution, pixelRatio, _ImageState.default.IDLE) || this;
+ /**
+ * @private
+ * @type {string}
+ */
+
+
+ _this.src_ = src;
+ /**
+ * @private
+ * @type {HTMLCanvasElement|HTMLImageElement|HTMLVideoElement}
+ */
+
+ _this.image_ = new Image();
+
+ if (crossOrigin !== null) {
+ _this.image_.crossOrigin = crossOrigin;
+ }
+ /**
+ * @private
+ * @type {?function():void}
+ */
+
+
+ _this.unlisten_ = null;
+ /**
+ * @protected
+ * @type {import("./ImageState.js").default}
+ */
+
+ _this.state = _ImageState.default.IDLE;
+ /**
+ * @private
+ * @type {LoadFunction}
+ */
+
+ _this.imageLoadFunction_ = imageLoadFunction;
+ return _this;
+ }
+ /**
+ * @return {HTMLCanvasElement|HTMLImageElement|HTMLVideoElement} Image.
+ * @api
+ */
+
+
+ ImageWrapper.prototype.getImage = function () {
+ return this.image_;
+ };
+ /**
+ * Tracks loading or read errors.
+ *
+ * @private
+ */
+
+
+ ImageWrapper.prototype.handleImageError_ = function () {
+ this.state = _ImageState.default.ERROR;
+ this.unlistenImage_();
+ this.changed();
+ };
+ /**
+ * Tracks successful image load.
+ *
+ * @private
+ */
+
+
+ ImageWrapper.prototype.handleImageLoad_ = function () {
+ if (this.resolution === undefined) {
+ this.resolution = (0, _extent.getHeight)(this.extent) / this.image_.height;
+ }
+
+ this.state = _ImageState.default.LOADED;
+ this.unlistenImage_();
+ this.changed();
+ };
+ /**
+ * Load the image or retry if loading previously failed.
+ * Loading is taken care of by the tile queue, and calling this method is
+ * only needed for preloading or for reloading in case of an error.
+ * @api
+ */
+
+
+ ImageWrapper.prototype.load = function () {
+ if (this.state == _ImageState.default.IDLE || this.state == _ImageState.default.ERROR) {
+ this.state = _ImageState.default.LOADING;
+ this.changed();
+ this.imageLoadFunction_(this, this.src_);
+ this.unlisten_ = listenImage(this.image_, this.handleImageLoad_.bind(this), this.handleImageError_.bind(this));
+ }
+ };
+ /**
+ * @param {HTMLCanvasElement|HTMLImageElement|HTMLVideoElement} image Image.
+ */
+
+
+ ImageWrapper.prototype.setImage = function (image) {
+ this.image_ = image;
+ };
+ /**
+ * Discards event handlers which listen for load completion or errors.
+ *
+ * @private
+ */
+
+
+ ImageWrapper.prototype.unlistenImage_ = function () {
+ if (this.unlisten_) {
+ this.unlisten_();
+ this.unlisten_ = null;
+ }
+ };
+
+ return ImageWrapper;
+}(_ImageBase.default);
+/**
+ * @param {HTMLCanvasElement|HTMLImageElement|HTMLVideoElement} image Image element.
+ * @param {function():any} loadHandler Load callback function.
+ * @param {function():any} errorHandler Error callback function.
+ * @return {function():void} Callback to stop listening.
+ */
+
+
+function listenImage(image, loadHandler, errorHandler) {
+ var img =
+ /** @type {HTMLImageElement} */
+ image;
+
+ if (img.src && _has.IMAGE_DECODE) {
+ var promise = img.decode();
+ var listening_1 = true;
+
+ var unlisten = function () {
+ listening_1 = false;
+ };
+
+ promise.then(function () {
+ if (listening_1) {
+ loadHandler();
+ }
+ }).catch(function (error) {
+ if (listening_1) {
+ // FIXME: Unconditionally call errorHandler() when this bug is fixed upstream:
+ // https://bugs.webkit.org/show_bug.cgi?id=198527
+ if (error.name === 'EncodingError' && error.message === 'Invalid image type.') {
+ loadHandler();
+ } else {
+ errorHandler();
+ }
+ }
+ });
+ return unlisten;
+ }
+
+ var listenerKeys = [(0, _events.listenOnce)(img, _EventType.default.LOAD, loadHandler), (0, _events.listenOnce)(img, _EventType.default.ERROR, errorHandler)];
+ return function unlisten() {
+ listenerKeys.forEach(_events.unlistenByKey);
+ };
+}
+
+var _default = ImageWrapper;
+exports.default = _default;
+},{"./events/EventType.js":"../../../node_modules/ol/events/EventType.js","./ImageBase.js":"../../../node_modules/ol/ImageBase.js","./ImageState.js":"../../../node_modules/ol/ImageState.js","./has.js":"../../../node_modules/ol/has.js","./extent.js":"../../../node_modules/ol/extent.js","./events.js":"../../../node_modules/ol/events.js"}],"../../../node_modules/ol/style/IconImage.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.get = get;
+exports.default = void 0;
+
+var _Target = _interopRequireDefault(require("../events/Target.js"));
+
+var _EventType = _interopRequireDefault(require("../events/EventType.js"));
+
+var _ImageState = _interopRequireDefault(require("../ImageState.js"));
+
+var _dom = require("../dom.js");
+
+var _IconImageCache = require("./IconImageCache.js");
+
+var _Image = require("../Image.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module ol/style/IconImage
+ */
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+
+/**
+ * @type {CanvasRenderingContext2D}
+ */
+var taintedTestContext = null;
+
+var IconImage =
+/** @class */
+function (_super) {
+ __extends(IconImage, _super);
+ /**
+ * @param {HTMLImageElement|HTMLCanvasElement} image Image.
+ * @param {string|undefined} src Src.
+ * @param {import("../size.js").Size} size Size.
+ * @param {?string} crossOrigin Cross origin.
+ * @param {import("../ImageState.js").default} imageState Image state.
+ * @param {import("../color.js").Color} color Color.
+ */
+
+
+ function IconImage(image, src, size, crossOrigin, imageState, color) {
+ var _this = _super.call(this) || this;
+ /**
+ * @private
+ * @type {HTMLImageElement|HTMLCanvasElement}
+ */
+
+
+ _this.hitDetectionImage_ = null;
+ /**
+ * @private
+ * @type {HTMLImageElement|HTMLCanvasElement}
+ */
+
+ _this.image_ = !image ? new Image() : image;
+
+ if (crossOrigin !== null) {
+ /** @type {HTMLImageElement} */
+ _this.image_.crossOrigin = crossOrigin;
+ }
+ /**
+ * @private
+ * @type {Object<number, HTMLCanvasElement>}
+ */
+
+
+ _this.canvas_ = {};
+ /**
+ * @private
+ * @type {import("../color.js").Color}
+ */
+
+ _this.color_ = color;
+ /**
+ * @private
+ * @type {?function():void}
+ */
+
+ _this.unlisten_ = null;
+ /**
+ * @private
+ * @type {import("../ImageState.js").default}
+ */
+
+ _this.imageState_ = imageState;
+ /**
+ * @private
+ * @type {import("../size.js").Size}
+ */
+
+ _this.size_ = size;
+ /**
+ * @private
+ * @type {string|undefined}
+ */
+
+ _this.src_ = src;
+ /**
+ * @private
+ */
+
+ _this.tainted_;
+ return _this;
+ }
+ /**
+ * @private
+ * @return {boolean} The image canvas is tainted.
+ */
+
+
+ IconImage.prototype.isTainted_ = function () {
+ if (this.tainted_ === undefined && this.imageState_ === _ImageState.default.LOADED) {
+ if (!taintedTestContext) {
+ taintedTestContext = (0, _dom.createCanvasContext2D)(1, 1);
+ }
+
+ taintedTestContext.drawImage(this.image_, 0, 0);
+
+ try {
+ taintedTestContext.getImageData(0, 0, 1, 1);
+ this.tainted_ = false;
+ } catch (e) {
+ taintedTestContext = null;
+ this.tainted_ = true;
+ }
+ }
+
+ return this.tainted_ === true;
+ };
+ /**
+ * @private
+ */
+
+
+ IconImage.prototype.dispatchChangeEvent_ = function () {
+ this.dispatchEvent(_EventType.default.CHANGE);
+ };
+ /**
+ * @private
+ */
+
+
+ IconImage.prototype.handleImageError_ = function () {
+ this.imageState_ = _ImageState.default.ERROR;
+ this.unlistenImage_();
+ this.dispatchChangeEvent_();
+ };
+ /**
+ * @private
+ */
+
+
+ IconImage.prototype.handleImageLoad_ = function () {
+ this.imageState_ = _ImageState.default.LOADED;
+
+ if (this.size_) {
+ this.image_.width = this.size_[0];
+ this.image_.height = this.size_[1];
+ } else {
+ this.size_ = [this.image_.width, this.image_.height];
+ }
+
+ this.unlistenImage_();
+ this.dispatchChangeEvent_();
+ };
+ /**
+ * @param {number} pixelRatio Pixel ratio.
+ * @return {HTMLImageElement|HTMLCanvasElement} Image or Canvas element.
+ */
+
+
+ IconImage.prototype.getImage = function (pixelRatio) {
+ this.replaceColor_(pixelRatio);
+ return this.canvas_[pixelRatio] ? this.canvas_[pixelRatio] : this.image_;
+ };
+ /**
+ * @param {number} pixelRatio Pixel ratio.
+ * @return {number} Image or Canvas element.
+ */
+
+
+ IconImage.prototype.getPixelRatio = function (pixelRatio) {
+ this.replaceColor_(pixelRatio);
+ return this.canvas_[pixelRatio] ? pixelRatio : 1;
+ };
+ /**
+ * @return {import("../ImageState.js").default} Image state.
+ */
+
+
+ IconImage.prototype.getImageState = function () {
+ return this.imageState_;
+ };
+ /**
+ * @return {HTMLImageElement|HTMLCanvasElement} Image element.
+ */
+
+
+ IconImage.prototype.getHitDetectionImage = function () {
+ if (!this.hitDetectionImage_) {
+ if (this.isTainted_()) {
+ var width = this.size_[0];
+ var height = this.size_[1];
+ var context = (0, _dom.createCanvasContext2D)(width, height);
+ context.fillRect(0, 0, width, height);
+ this.hitDetectionImage_ = context.canvas;
+ } else {
+ this.hitDetectionImage_ = this.image_;
+ }
+ }
+
+ return this.hitDetectionImage_;
+ };
+ /**
+ * Get the size of the icon (in pixels).
+ * @return {import("../size.js").Size} Image size.
+ */
+
+
+ IconImage.prototype.getSize = function () {
+ return this.size_;
+ };
+ /**
+ * @return {string|undefined} Image src.
+ */
+
+
+ IconImage.prototype.getSrc = function () {
+ return this.src_;
+ };
+ /**
+ * Load not yet loaded URI.
+ */
+
+
+ IconImage.prototype.load = function () {
+ if (this.imageState_ == _ImageState.default.IDLE) {
+ this.imageState_ = _ImageState.default.LOADING;
+
+ try {
+ /** @type {HTMLImageElement} */
+ this.image_.src = this.src_;
+ } catch (e) {
+ this.handleImageError_();
+ }
+
+ this.unlisten_ = (0, _Image.listenImage)(this.image_, this.handleImageLoad_.bind(this), this.handleImageError_.bind(this));
+ }
+ };
+ /**
+ * @param {number} pixelRatio Pixel ratio.
+ * @private
+ */
+
+
+ IconImage.prototype.replaceColor_ = function (pixelRatio) {
+ if (!this.color_ || this.canvas_[pixelRatio]) {
+ return;
+ }
+
+ var canvas = document.createElement('canvas');
+ this.canvas_[pixelRatio] = canvas;
+ canvas.width = Math.ceil(this.image_.width * pixelRatio);
+ canvas.height = Math.ceil(this.image_.height * pixelRatio);
+ var ctx = canvas.getContext('2d');
+ ctx.scale(pixelRatio, pixelRatio);
+ ctx.drawImage(this.image_, 0, 0);
+
+ if (this.isTainted_()) {
+ // If reading from the canvas throws a SecurityError the same effect can be
+ // achieved with globalCompositeOperation.
+ // This could be used as the default, but it is not fully supported by all
+ // browsers. E. g. Internet Explorer 11 does not support the multiply
+ // operation and the resulting image shape will be completelly filled with
+ // the provided color.
+ // So this is only used as a fallback. It is still better than having no icon
+ // at all.
+ var c = this.color_;
+ ctx.globalCompositeOperation = 'multiply';
+ ctx.fillStyle = 'rgb(' + c[0] + ',' + c[1] + ',' + c[2] + ')';
+ ctx.fillRect(0, 0, canvas.width, canvas.height);
+ ctx.globalCompositeOperation = 'destination-in';
+ ctx.drawImage(this.image_, 0, 0);
+ return;
+ }
+
+ var imgData = ctx.getImageData(0, 0, canvas.width, canvas.height);
+ var data = imgData.data;
+ var r = this.color_[0] / 255.0;
+ var g = this.color_[1] / 255.0;
+ var b = this.color_[2] / 255.0;
+
+ for (var i = 0, ii = data.length; i < ii; i += 4) {
+ data[i] *= r;
+ data[i + 1] *= g;
+ data[i + 2] *= b;
+ }
+
+ ctx.putImageData(imgData, 0, 0);
+ };
+ /**
+ * Discards event handlers which listen for load completion or errors.
+ *
+ * @private
+ */
+
+
+ IconImage.prototype.unlistenImage_ = function () {
+ if (this.unlisten_) {
+ this.unlisten_();
+ this.unlisten_ = null;
+ }
+ };
+
+ return IconImage;
+}(_Target.default);
+/**
+ * @param {HTMLImageElement|HTMLCanvasElement} image Image.
+ * @param {string} src Src.
+ * @param {import("../size.js").Size} size Size.
+ * @param {?string} crossOrigin Cross origin.
+ * @param {import("../ImageState.js").default} imageState Image state.
+ * @param {import("../color.js").Color} color Color.
+ * @return {IconImage} Icon image.
+ */
+
+
+function get(image, src, size, crossOrigin, imageState, color) {
+ var iconImage = _IconImageCache.shared.get(src, crossOrigin, color);
+
+ if (!iconImage) {
+ iconImage = new IconImage(image, src, size, crossOrigin, imageState, color);
+
+ _IconImageCache.shared.set(src, crossOrigin, color, iconImage);
+ }
+
+ return iconImage;
+}
+
+var _default = IconImage;
+exports.default = _default;
+},{"../events/Target.js":"../../../node_modules/ol/events/Target.js","../events/EventType.js":"../../../node_modules/ol/events/EventType.js","../ImageState.js":"../../../node_modules/ol/ImageState.js","../dom.js":"../../../node_modules/ol/dom.js","./IconImageCache.js":"../../../node_modules/ol/style/IconImageCache.js","../Image.js":"../../../node_modules/ol/Image.js"}],"../../../node_modules/ol/style/Icon.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _EventType = _interopRequireDefault(require("../events/EventType.js"));
+
+var _IconAnchorUnits = _interopRequireDefault(require("./IconAnchorUnits.js"));
+
+var _IconOrigin = _interopRequireDefault(require("./IconOrigin.js"));
+
+var _ImageState = _interopRequireDefault(require("../ImageState.js"));
+
+var _Image = _interopRequireDefault(require("./Image.js"));
+
+var _color = require("../color.js");
+
+var _asserts = require("../asserts.js");
+
+var _IconImage = require("./IconImage.js");
+
+var _util = require("../util.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/style/Icon
+ */
+
+
+/**
+ * @typedef {Object} Options
+ * @property {Array<number>} [anchor=[0.5, 0.5]] Anchor. Default value is the icon center.
+ * @property {import("./IconOrigin.js").default} [anchorOrigin='top-left'] Origin of the anchor: `bottom-left`, `bottom-right`,
+ * `top-left` or `top-right`.
+ * @property {import("./IconAnchorUnits.js").default} [anchorXUnits='fraction'] Units in which the anchor x value is
+ * specified. A value of `'fraction'` indicates the x value is a fraction of the icon. A value of `'pixels'` indicates
+ * the x value in pixels.
+ * @property {import("./IconAnchorUnits.js").default} [anchorYUnits='fraction'] Units in which the anchor y value is
+ * specified. A value of `'fraction'` indicates the y value is a fraction of the icon. A value of `'pixels'` indicates
+ * the y value in pixels.
+ * @property {import("../color.js").Color|string} [color] Color to tint the icon. If not specified,
+ * the icon will be left as is.
+ * @property {null|string} [crossOrigin] The `crossOrigin` attribute for loaded images. Note that you must provide a
+ * `crossOrigin` value if you want to access pixel data with the Canvas renderer.
+ * See https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_enabled_image for more detail.
+ * @property {HTMLImageElement|HTMLCanvasElement} [img] Image object for the icon. If the `src` option is not provided then the
+ * provided image must already be loaded. And in that case, it is required
+ * to provide the size of the image, with the `imgSize` option.
+ * @property {Array<number>} [offset=[0, 0]] Offset, which, together with the size and the offset origin, define the
+ * sub-rectangle to use from the original icon image.
+ * @property {Array<number>} [displacement=[0,0]] Displacement the icon
+ * @property {import("./IconOrigin.js").default} [offsetOrigin='top-left'] Origin of the offset: `bottom-left`, `bottom-right`,
+ * `top-left` or `top-right`.
+ * @property {number} [opacity=1] Opacity of the icon.
+ * @property {number|import("../size.js").Size} [scale=1] Scale.
+ * @property {boolean} [rotateWithView=false] Whether to rotate the icon with the view.
+ * @property {number} [rotation=0] Rotation in radians (positive rotation clockwise).
+ * @property {import("../size.js").Size} [size] Icon size in pixel. Can be used together with `offset` to define the
+ * sub-rectangle to use from the origin (sprite) icon image.
+ * @property {import("../size.js").Size} [imgSize] Image size in pixels. Only required if `img` is set and `src` is not, and
+ * for SVG images in Internet Explorer 11. The provided `imgSize` needs to match the actual size of the image.
+ * @property {string} [src] Image source URI.
+ */
+
+/**
+ * @classdesc
+ * Set icon style for vector features.
+ * @api
+ */
+var Icon =
+/** @class */
+function (_super) {
+ __extends(Icon, _super);
+ /**
+ * @param {Options=} opt_options Options.
+ */
+
+
+ function Icon(opt_options) {
+ var _this = this;
+
+ var options = opt_options || {};
+ /**
+ * @type {number}
+ */
+
+ var opacity = options.opacity !== undefined ? options.opacity : 1;
+ /**
+ * @type {number}
+ */
+
+ var rotation = options.rotation !== undefined ? options.rotation : 0;
+ /**
+ * @type {number|import("../size.js").Size}
+ */
+
+ var scale = options.scale !== undefined ? options.scale : 1;
+ /**
+ * @type {boolean}
+ */
+
+ var rotateWithView = options.rotateWithView !== undefined ? options.rotateWithView : false;
+ _this = _super.call(this, {
+ opacity: opacity,
+ rotation: rotation,
+ scale: scale,
+ displacement: options.displacement !== undefined ? options.displacement : [0, 0],
+ rotateWithView: rotateWithView
+ }) || this;
+ /**
+ * @private
+ * @type {Array<number>}
+ */
+
+ _this.anchor_ = options.anchor !== undefined ? options.anchor : [0.5, 0.5];
+ /**
+ * @private
+ * @type {Array<number>}
+ */
+
+ _this.normalizedAnchor_ = null;
+ /**
+ * @private
+ * @type {import("./IconOrigin.js").default}
+ */
+
+ _this.anchorOrigin_ = options.anchorOrigin !== undefined ? options.anchorOrigin : _IconOrigin.default.TOP_LEFT;
+ /**
+ * @private
+ * @type {import("./IconAnchorUnits.js").default}
+ */
+
+ _this.anchorXUnits_ = options.anchorXUnits !== undefined ? options.anchorXUnits : _IconAnchorUnits.default.FRACTION;
+ /**
+ * @private
+ * @type {import("./IconAnchorUnits.js").default}
+ */
+
+ _this.anchorYUnits_ = options.anchorYUnits !== undefined ? options.anchorYUnits : _IconAnchorUnits.default.FRACTION;
+ /**
+ * @private
+ * @type {?string}
+ */
+
+ _this.crossOrigin_ = options.crossOrigin !== undefined ? options.crossOrigin : null;
+ /**
+ * @type {HTMLImageElement|HTMLCanvasElement}
+ */
+
+ var image = options.img !== undefined ? options.img : null;
+ /**
+ * @type {import("../size.js").Size}
+ */
+
+ var imgSize = options.imgSize !== undefined ? options.imgSize : null;
+ /**
+ * @type {string|undefined}
+ */
+
+ var src = options.src;
+ (0, _asserts.assert)(!(src !== undefined && image), 4); // `image` and `src` cannot be provided at the same time
+
+ (0, _asserts.assert)(!image || image && imgSize, 5); // `imgSize` must be set when `image` is provided
+
+ if ((src === undefined || src.length === 0) && image) {
+ src =
+ /** @type {HTMLImageElement} */
+ image.src || (0, _util.getUid)(image);
+ }
+
+ (0, _asserts.assert)(src !== undefined && src.length > 0, 6); // A defined and non-empty `src` or `image` must be provided
+
+ /**
+ * @type {import("../ImageState.js").default}
+ */
+
+ var imageState = options.src !== undefined ? _ImageState.default.IDLE : _ImageState.default.LOADED;
+ /**
+ * @private
+ * @type {import("../color.js").Color}
+ */
+
+ _this.color_ = options.color !== undefined ? (0, _color.asArray)(options.color) : null;
+ /**
+ * @private
+ * @type {import("./IconImage.js").default}
+ */
+
+ _this.iconImage_ = (0, _IconImage.get)(image,
+ /** @type {string} */
+ src, imgSize, _this.crossOrigin_, imageState, _this.color_);
+ /**
+ * @private
+ * @type {Array<number>}
+ */
+
+ _this.offset_ = options.offset !== undefined ? options.offset : [0, 0];
+ /**
+ * @private
+ * @type {import("./IconOrigin.js").default}
+ */
+
+ _this.offsetOrigin_ = options.offsetOrigin !== undefined ? options.offsetOrigin : _IconOrigin.default.TOP_LEFT;
+ /**
+ * @private
+ * @type {Array<number>}
+ */
+
+ _this.origin_ = null;
+ /**
+ * @private
+ * @type {import("../size.js").Size}
+ */
+
+ _this.size_ = options.size !== undefined ? options.size : null;
+ return _this;
+ }
+ /**
+ * Clones the style. The underlying Image/HTMLCanvasElement is not cloned.
+ * @return {Icon} The cloned style.
+ * @api
+ */
+
+
+ Icon.prototype.clone = function () {
+ var scale = this.getScale();
+ return new Icon({
+ anchor: this.anchor_.slice(),
+ anchorOrigin: this.anchorOrigin_,
+ anchorXUnits: this.anchorXUnits_,
+ anchorYUnits: this.anchorYUnits_,
+ crossOrigin: this.crossOrigin_,
+ color: this.color_ && this.color_.slice ? this.color_.slice() : this.color_ || undefined,
+ src: this.getSrc(),
+ offset: this.offset_.slice(),
+ offsetOrigin: this.offsetOrigin_,
+ size: this.size_ !== null ? this.size_.slice() : undefined,
+ opacity: this.getOpacity(),
+ scale: Array.isArray(scale) ? scale.slice() : scale,
+ rotation: this.getRotation(),
+ rotateWithView: this.getRotateWithView()
+ });
+ };
+ /**
+ * Get the anchor point in pixels. The anchor determines the center point for the
+ * symbolizer.
+ * @return {Array<number>} Anchor.
+ * @api
+ */
+
+
+ Icon.prototype.getAnchor = function () {
+ if (this.normalizedAnchor_) {
+ return this.normalizedAnchor_;
+ }
+
+ var anchor = this.anchor_;
+ var size = this.getSize();
+
+ if (this.anchorXUnits_ == _IconAnchorUnits.default.FRACTION || this.anchorYUnits_ == _IconAnchorUnits.default.FRACTION) {
+ if (!size) {
+ return null;
+ }
+
+ anchor = this.anchor_.slice();
+
+ if (this.anchorXUnits_ == _IconAnchorUnits.default.FRACTION) {
+ anchor[0] *= size[0];
+ }
+
+ if (this.anchorYUnits_ == _IconAnchorUnits.default.FRACTION) {
+ anchor[1] *= size[1];
+ }
+ }
+
+ if (this.anchorOrigin_ != _IconOrigin.default.TOP_LEFT) {
+ if (!size) {
+ return null;
+ }
+
+ if (anchor === this.anchor_) {
+ anchor = this.anchor_.slice();
+ }
+
+ if (this.anchorOrigin_ == _IconOrigin.default.TOP_RIGHT || this.anchorOrigin_ == _IconOrigin.default.BOTTOM_RIGHT) {
+ anchor[0] = -anchor[0] + size[0];
+ }
+
+ if (this.anchorOrigin_ == _IconOrigin.default.BOTTOM_LEFT || this.anchorOrigin_ == _IconOrigin.default.BOTTOM_RIGHT) {
+ anchor[1] = -anchor[1] + size[1];
+ }
+ }
+
+ this.normalizedAnchor_ = anchor;
+ return this.normalizedAnchor_;
+ };
+ /**
+ * Set the anchor point. The anchor determines the center point for the
+ * symbolizer.
+ *
+ * @param {Array<number>} anchor Anchor.
+ * @api
+ */
+
+
+ Icon.prototype.setAnchor = function (anchor) {
+ this.anchor_ = anchor;
+ this.normalizedAnchor_ = null;
+ };
+ /**
+ * Get the icon color.
+ * @return {import("../color.js").Color} Color.
+ * @api
+ */
+
+
+ Icon.prototype.getColor = function () {
+ return this.color_;
+ };
+ /**
+ * Get the image icon.
+ * @param {number} pixelRatio Pixel ratio.
+ * @return {HTMLImageElement|HTMLCanvasElement} Image or Canvas element.
+ * @api
+ */
+
+
+ Icon.prototype.getImage = function (pixelRatio) {
+ return this.iconImage_.getImage(pixelRatio);
+ };
+ /**
+ * Get the pixel ratio.
+ * @param {number} pixelRatio Pixel ratio.
+ * @return {number} The pixel ration of the image.
+ * @api
+ */
+
+
+ Icon.prototype.getPixelRatio = function (pixelRatio) {
+ return this.iconImage_.getPixelRatio(pixelRatio);
+ };
+ /**
+ * @return {import("../size.js").Size} Image size.
+ */
+
+
+ Icon.prototype.getImageSize = function () {
+ return this.iconImage_.getSize();
+ };
+ /**
+ * @return {import("../size.js").Size} Size of the hit-detection image.
+ */
+
+
+ Icon.prototype.getHitDetectionImageSize = function () {
+ return this.getImageSize();
+ };
+ /**
+ * @return {import("../ImageState.js").default} Image state.
+ */
+
+
+ Icon.prototype.getImageState = function () {
+ return this.iconImage_.getImageState();
+ };
+ /**
+ * @return {HTMLImageElement|HTMLCanvasElement} Image element.
+ */
+
+
+ Icon.prototype.getHitDetectionImage = function () {
+ return this.iconImage_.getHitDetectionImage();
+ };
+ /**
+ * Get the origin of the symbolizer.
+ * @return {Array<number>} Origin.
+ * @api
+ */
+
+
+ Icon.prototype.getOrigin = function () {
+ if (this.origin_) {
+ return this.origin_;
+ }
+
+ var offset = this.offset_;
+ var displacement = this.getDisplacement();
+
+ if (this.offsetOrigin_ != _IconOrigin.default.TOP_LEFT) {
+ var size = this.getSize();
+ var iconImageSize = this.iconImage_.getSize();
+
+ if (!size || !iconImageSize) {
+ return null;
+ }
+
+ offset = offset.slice();
+
+ if (this.offsetOrigin_ == _IconOrigin.default.TOP_RIGHT || this.offsetOrigin_ == _IconOrigin.default.BOTTOM_RIGHT) {
+ offset[0] = iconImageSize[0] - size[0] - offset[0];
+ }
+
+ if (this.offsetOrigin_ == _IconOrigin.default.BOTTOM_LEFT || this.offsetOrigin_ == _IconOrigin.default.BOTTOM_RIGHT) {
+ offset[1] = iconImageSize[1] - size[1] - offset[1];
+ }
+ }
+
+ offset[0] += displacement[0];
+ offset[1] += displacement[1];
+ this.origin_ = offset;
+ return this.origin_;
+ };
+ /**
+ * Get the image URL.
+ * @return {string|undefined} Image src.
+ * @api
+ */
+
+
+ Icon.prototype.getSrc = function () {
+ return this.iconImage_.getSrc();
+ };
+ /**
+ * Get the size of the icon (in pixels).
+ * @return {import("../size.js").Size} Image size.
+ * @api
+ */
+
+
+ Icon.prototype.getSize = function () {
+ return !this.size_ ? this.iconImage_.getSize() : this.size_;
+ };
+ /**
+ * @param {function(import("../events/Event.js").default): void} listener Listener function.
+ */
+
+
+ Icon.prototype.listenImageChange = function (listener) {
+ this.iconImage_.addEventListener(_EventType.default.CHANGE, listener);
+ };
+ /**
+ * Load not yet loaded URI.
+ * When rendering a feature with an icon style, the vector renderer will
+ * automatically call this method. However, you might want to call this
+ * method yourself for preloading or other purposes.
+ * @api
+ */
+
+
+ Icon.prototype.load = function () {
+ this.iconImage_.load();
+ };
+ /**
+ * @param {function(import("../events/Event.js").default): void} listener Listener function.
+ */
+
+
+ Icon.prototype.unlistenImageChange = function (listener) {
+ this.iconImage_.removeEventListener(_EventType.default.CHANGE, listener);
+ };
+
+ return Icon;
+}(_Image.default);
+
+var _default = Icon;
+exports.default = _default;
+},{"../events/EventType.js":"../../../node_modules/ol/events/EventType.js","./IconAnchorUnits.js":"../../../node_modules/ol/style/IconAnchorUnits.js","./IconOrigin.js":"../../../node_modules/ol/style/IconOrigin.js","../ImageState.js":"../../../node_modules/ol/ImageState.js","./Image.js":"../../../node_modules/ol/style/Image.js","../color.js":"../../../node_modules/ol/color.js","../asserts.js":"../../../node_modules/ol/asserts.js","./IconImage.js":"../../../node_modules/ol/style/IconImage.js","../util.js":"../../../node_modules/ol/util.js"}],"../../../node_modules/ol/style.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+Object.defineProperty(exports, "Circle", {
+ enumerable: true,
+ get: function () {
+ return _Circle.default;
+ }
+});
+Object.defineProperty(exports, "Fill", {
+ enumerable: true,
+ get: function () {
+ return _Fill.default;
+ }
+});
+Object.defineProperty(exports, "Icon", {
+ enumerable: true,
+ get: function () {
+ return _Icon.default;
+ }
+});
+Object.defineProperty(exports, "IconImage", {
+ enumerable: true,
+ get: function () {
+ return _IconImage.default;
+ }
+});
+Object.defineProperty(exports, "Image", {
+ enumerable: true,
+ get: function () {
+ return _Image.default;
+ }
+});
+Object.defineProperty(exports, "RegularShape", {
+ enumerable: true,
+ get: function () {
+ return _RegularShape.default;
+ }
+});
+Object.defineProperty(exports, "Stroke", {
+ enumerable: true,
+ get: function () {
+ return _Stroke.default;
+ }
+});
+Object.defineProperty(exports, "Style", {
+ enumerable: true,
+ get: function () {
+ return _Style.default;
+ }
+});
+Object.defineProperty(exports, "Text", {
+ enumerable: true,
+ get: function () {
+ return _Text.default;
+ }
+});
+
+var _Circle = _interopRequireDefault(require("./style/Circle.js"));
+
+var _Fill = _interopRequireDefault(require("./style/Fill.js"));
+
+var _Icon = _interopRequireDefault(require("./style/Icon.js"));
+
+var _IconImage = _interopRequireDefault(require("./style/IconImage.js"));
+
+var _Image = _interopRequireDefault(require("./style/Image.js"));
+
+var _RegularShape = _interopRequireDefault(require("./style/RegularShape.js"));
+
+var _Stroke = _interopRequireDefault(require("./style/Stroke.js"));
+
+var _Style = _interopRequireDefault(require("./style/Style.js"));
+
+var _Text = _interopRequireDefault(require("./style/Text.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+},{"./style/Circle.js":"../../../node_modules/ol/style/Circle.js","./style/Fill.js":"../../../node_modules/ol/style/Fill.js","./style/Icon.js":"../../../node_modules/ol/style/Icon.js","./style/IconImage.js":"../../../node_modules/ol/style/IconImage.js","./style/Image.js":"../../../node_modules/ol/style/Image.js","./style/RegularShape.js":"../../../node_modules/ol/style/RegularShape.js","./style/Stroke.js":"../../../node_modules/ol/style/Stroke.js","./style/Style.js":"../../../node_modules/ol/style/Style.js","./style/Text.js":"../../../node_modules/ol/style/Text.js"}],"../../../node_modules/ol/render/canvas/hitdetect.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.createHitDetectionImageData = createHitDetectionImageData;
+exports.hitDetect = hitDetect;
+
+var _Immediate = _interopRequireDefault(require("./Immediate.js"));
+
+var _GeometryType = _interopRequireDefault(require("../../geom/GeometryType.js"));
+
+var _IconAnchorUnits = _interopRequireDefault(require("../../style/IconAnchorUnits.js"));
+
+var _style = require("../../style.js");
+
+var _dom = require("../../dom.js");
+
+var _extent = require("../../extent.js");
+
+var _array = require("../../array.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module ol/render/canvas/hitdetet
+ */
+
+/**
+ * @param {import("../../size.js").Size} size Canvas size in css pixels.
+ * @param {Array<import("../../transform.js").Transform>} transforms Transforms
+ * for rendering features to all worlds of the viewport, from coordinates to css
+ * pixels.
+ * @param {Array<import("../../Feature.js").FeatureLike>} features
+ * Features to consider for hit detection.
+ * @param {import("../../style/Style.js").StyleFunction|undefined} styleFunction
+ * Layer style function.
+ * @param {import("../../extent.js").Extent} extent Extent.
+ * @param {number} resolution Resolution.
+ * @param {number} rotation Rotation.
+ * @return {ImageData} Hit detection image data.
+ */
+function createHitDetectionImageData(size, transforms, features, styleFunction, extent, resolution, rotation) {
+ var width = size[0] / 2;
+ var height = size[1] / 2;
+ var context = (0, _dom.createCanvasContext2D)(width, height);
+ context.imageSmoothingEnabled = false;
+ var canvas = context.canvas;
+ var renderer = new _Immediate.default(context, 0.5, extent, null, rotation);
+ var featureCount = features.length; // Stretch hit detection index to use the whole available color range
+
+ var indexFactor = Math.floor((256 * 256 * 256 - 1) / featureCount);
+ var featuresByZIndex = {};
+
+ for (var i = 1; i <= featureCount; ++i) {
+ var feature = features[i - 1];
+ var featureStyleFunction = feature.getStyleFunction() || styleFunction;
+
+ if (!styleFunction) {
+ continue;
+ }
+
+ var styles = featureStyleFunction(feature, resolution);
+
+ if (!styles) {
+ continue;
+ }
+
+ if (!Array.isArray(styles)) {
+ styles = [styles];
+ }
+
+ var index = i * indexFactor;
+ var color = '#' + ('000000' + index.toString(16)).slice(-6);
+
+ for (var j = 0, jj = styles.length; j < jj; ++j) {
+ var originalStyle = styles[j];
+ var style = originalStyle.clone();
+ var fill = style.getFill();
+
+ if (fill) {
+ fill.setColor(color);
+ }
+
+ var stroke = style.getStroke();
+
+ if (stroke) {
+ stroke.setColor(color);
+ }
+
+ style.setText(undefined);
+ var image = originalStyle.getImage();
+
+ if (image) {
+ var imgSize = image.getImageSize();
+
+ if (!imgSize) {
+ continue;
+ }
+
+ var canvas_1 = document.createElement('canvas');
+ canvas_1.width = imgSize[0];
+ canvas_1.height = imgSize[1];
+ var imgContext = canvas_1.getContext('2d', {
+ alpha: false
+ });
+ imgContext.fillStyle = color;
+ var img = imgContext.canvas;
+ imgContext.fillRect(0, 0, img.width, img.height);
+ var width_1 = imgSize ? imgSize[0] : img.width;
+ var height_1 = imgSize ? imgSize[1] : img.height;
+ var iconContext = (0, _dom.createCanvasContext2D)(width_1, height_1);
+ iconContext.drawImage(img, 0, 0);
+ style.setImage(new _style.Icon({
+ img: img,
+ imgSize: imgSize,
+ anchor: image.getAnchor(),
+ anchorXUnits: _IconAnchorUnits.default.PIXELS,
+ anchorYUnits: _IconAnchorUnits.default.PIXELS,
+ offset: image.getOrigin(),
+ size: image.getSize(),
+ opacity: image.getOpacity(),
+ scale: image.getScale(),
+ rotation: image.getRotation(),
+ rotateWithView: image.getRotateWithView()
+ }));
+ }
+
+ var zIndex = Number(style.getZIndex());
+ var byGeometryType = featuresByZIndex[zIndex];
+
+ if (!byGeometryType) {
+ byGeometryType = {};
+ featuresByZIndex[zIndex] = byGeometryType;
+ byGeometryType[_GeometryType.default.POLYGON] = [];
+ byGeometryType[_GeometryType.default.CIRCLE] = [];
+ byGeometryType[_GeometryType.default.LINE_STRING] = [];
+ byGeometryType[_GeometryType.default.POINT] = [];
+ }
+
+ var geometry = style.getGeometryFunction()(feature);
+
+ if (geometry && (0, _extent.intersects)(extent, geometry.getExtent())) {
+ byGeometryType[geometry.getType().replace('Multi', '')].push(geometry, style);
+ }
+ }
+ }
+
+ var zIndexKeys = Object.keys(featuresByZIndex).map(Number).sort(_array.numberSafeCompareFunction);
+
+ for (var i = 0, ii = zIndexKeys.length; i < ii; ++i) {
+ var byGeometryType = featuresByZIndex[zIndexKeys[i]];
+
+ for (var type in byGeometryType) {
+ var geomAndStyle = byGeometryType[type];
+
+ for (var j = 0, jj = geomAndStyle.length; j < jj; j += 2) {
+ renderer.setStyle(geomAndStyle[j + 1]);
+
+ for (var k = 0, kk = transforms.length; k < kk; ++k) {
+ renderer.setTransform(transforms[k]);
+ renderer.drawGeometry(geomAndStyle[j]);
+ }
+ }
+ }
+ }
+
+ return context.getImageData(0, 0, canvas.width, canvas.height);
+}
+/**
+ * @param {import("../../pixel").Pixel} pixel Pixel coordinate on the hit
+ * detection canvas in css pixels.
+ * @param {Array<import("../../Feature").FeatureLike>} features Features. Has to
+ * match the `features` array that was passed to `createHitDetectionImageData()`.
+ * @param {ImageData} imageData Hit detection image data generated by
+ * `createHitDetectionImageData()`.
+ * @return {Array<import("../../Feature").FeatureLike>} features Features.
+ */
+
+
+function hitDetect(pixel, features, imageData) {
+ var resultFeatures = [];
+
+ if (imageData) {
+ var index = (Math.round(pixel[0] / 2) + Math.round(pixel[1] / 2) * imageData.width) * 4;
+ var r = imageData.data[index];
+ var g = imageData.data[index + 1];
+ var b = imageData.data[index + 2];
+ var i = b + 256 * (g + 256 * r);
+ var indexFactor = Math.floor((256 * 256 * 256 - 1) / features.length);
+
+ if (i && i % indexFactor === 0) {
+ resultFeatures.push(features[i / indexFactor - 1]);
+ }
+ }
+
+ return resultFeatures;
+}
+},{"./Immediate.js":"../../../node_modules/ol/render/canvas/Immediate.js","../../geom/GeometryType.js":"../../../node_modules/ol/geom/GeometryType.js","../../style/IconAnchorUnits.js":"../../../node_modules/ol/style/IconAnchorUnits.js","../../style.js":"../../../node_modules/ol/style.js","../../dom.js":"../../../node_modules/ol/dom.js","../../extent.js":"../../../node_modules/ol/extent.js","../../array.js":"../../../node_modules/ol/array.js"}],"../../../node_modules/ol/renderer/vector.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.defaultOrder = defaultOrder;
+exports.getSquaredTolerance = getSquaredTolerance;
+exports.getTolerance = getTolerance;
+exports.renderFeature = renderFeature;
+
+var _BuilderType = _interopRequireDefault(require("../render/canvas/BuilderType.js"));
+
+var _GeometryType = _interopRequireDefault(require("../geom/GeometryType.js"));
+
+var _ImageState = _interopRequireDefault(require("../ImageState.js"));
+
+var _util = require("../util.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module ol/renderer/vector
+ */
+
+/**
+ * Tolerance for geometry simplification in device pixels.
+ * @type {number}
+ */
+var SIMPLIFY_TOLERANCE = 0.5;
+/**
+ * @const
+ * @type {Object<import("../geom/GeometryType.js").default,
+ * function(import("../render/canvas/BuilderGroup.js").default, import("../geom/Geometry.js").default,
+ * import("../style/Style.js").default, Object): void>}
+ */
+
+var GEOMETRY_RENDERERS = {
+ 'Point': renderPointGeometry,
+ 'LineString': renderLineStringGeometry,
+ 'Polygon': renderPolygonGeometry,
+ 'MultiPoint': renderMultiPointGeometry,
+ 'MultiLineString': renderMultiLineStringGeometry,
+ 'MultiPolygon': renderMultiPolygonGeometry,
+ 'GeometryCollection': renderGeometryCollectionGeometry,
+ 'Circle': renderCircleGeometry
+};
+/**
+ * @param {import("../Feature.js").FeatureLike} feature1 Feature 1.
+ * @param {import("../Feature.js").FeatureLike} feature2 Feature 2.
+ * @return {number} Order.
+ */
+
+function defaultOrder(feature1, feature2) {
+ return parseInt((0, _util.getUid)(feature1), 10) - parseInt((0, _util.getUid)(feature2), 10);
+}
+/**
+ * @param {number} resolution Resolution.
+ * @param {number} pixelRatio Pixel ratio.
+ * @return {number} Squared pixel tolerance.
+ */
+
+
+function getSquaredTolerance(resolution, pixelRatio) {
+ var tolerance = getTolerance(resolution, pixelRatio);
+ return tolerance * tolerance;
+}
+/**
+ * @param {number} resolution Resolution.
+ * @param {number} pixelRatio Pixel ratio.
+ * @return {number} Pixel tolerance.
+ */
+
+
+function getTolerance(resolution, pixelRatio) {
+ return SIMPLIFY_TOLERANCE * resolution / pixelRatio;
+}
+/**
+ * @param {import("../render/canvas/BuilderGroup.js").default} builderGroup Builder group.
+ * @param {import("../geom/Circle.js").default} geometry Geometry.
+ * @param {import("../style/Style.js").default} style Style.
+ * @param {import("../Feature.js").default} feature Feature.
+ */
+
+
+function renderCircleGeometry(builderGroup, geometry, style, feature) {
+ var fillStyle = style.getFill();
+ var strokeStyle = style.getStroke();
+
+ if (fillStyle || strokeStyle) {
+ var circleReplay = builderGroup.getBuilder(style.getZIndex(), _BuilderType.default.CIRCLE);
+ circleReplay.setFillStrokeStyle(fillStyle, strokeStyle);
+ circleReplay.drawCircle(geometry, feature);
+ }
+
+ var textStyle = style.getText();
+
+ if (textStyle) {
+ var textReplay = builderGroup.getBuilder(style.getZIndex(), _BuilderType.default.TEXT);
+ textReplay.setTextStyle(textStyle, builderGroup.addDeclutter(false));
+ textReplay.drawText(geometry, feature);
+ }
+}
+/**
+ * @param {import("../render/canvas/BuilderGroup.js").default} replayGroup Replay group.
+ * @param {import("../Feature.js").FeatureLike} feature Feature.
+ * @param {import("../style/Style.js").default} style Style.
+ * @param {number} squaredTolerance Squared tolerance.
+ * @param {function(import("../events/Event.js").default): void} listener Listener function.
+ * @param {import("../proj.js").TransformFunction} [opt_transform] Transform from user to view projection.
+ * @return {boolean} `true` if style is loading.
+ * @template T
+ */
+
+
+function renderFeature(replayGroup, feature, style, squaredTolerance, listener, opt_transform) {
+ var loading = false;
+ var imageStyle = style.getImage();
+
+ if (imageStyle) {
+ var imageState = imageStyle.getImageState();
+
+ if (imageState == _ImageState.default.LOADED || imageState == _ImageState.default.ERROR) {
+ imageStyle.unlistenImageChange(listener);
+ } else {
+ if (imageState == _ImageState.default.IDLE) {
+ imageStyle.load();
+ }
+
+ imageState = imageStyle.getImageState();
+ imageStyle.listenImageChange(listener);
+ loading = true;
+ }
+ }
+
+ renderFeatureInternal(replayGroup, feature, style, squaredTolerance, opt_transform);
+ return loading;
+}
+/**
+ * @param {import("../render/canvas/BuilderGroup.js").default} replayGroup Replay group.
+ * @param {import("../Feature.js").FeatureLike} feature Feature.
+ * @param {import("../style/Style.js").default} style Style.
+ * @param {number} squaredTolerance Squared tolerance.
+ * @param {import("../proj.js").TransformFunction} [opt_transform] Optional transform function.
+ */
+
+
+function renderFeatureInternal(replayGroup, feature, style, squaredTolerance, opt_transform) {
+ var geometry = style.getGeometryFunction()(feature);
+
+ if (!geometry) {
+ return;
+ }
+
+ var simplifiedGeometry = geometry.simplifyTransformed(squaredTolerance, opt_transform);
+ var renderer = style.getRenderer();
+
+ if (renderer) {
+ renderGeometry(replayGroup, simplifiedGeometry, style, feature);
+ } else {
+ var geometryRenderer = GEOMETRY_RENDERERS[simplifiedGeometry.getType()];
+ geometryRenderer(replayGroup, simplifiedGeometry, style, feature);
+ }
+}
+/**
+ * @param {import("../render/canvas/BuilderGroup.js").default} replayGroup Replay group.
+ * @param {import("../geom/Geometry.js").default|import("../render/Feature.js").default} geometry Geometry.
+ * @param {import("../style/Style.js").default} style Style.
+ * @param {import("../Feature.js").FeatureLike} feature Feature.
+ */
+
+
+function renderGeometry(replayGroup, geometry, style, feature) {
+ if (geometry.getType() == _GeometryType.default.GEOMETRY_COLLECTION) {
+ var geometries =
+ /** @type {import("../geom/GeometryCollection.js").default} */
+ geometry.getGeometries();
+
+ for (var i = 0, ii = geometries.length; i < ii; ++i) {
+ renderGeometry(replayGroup, geometries[i], style, feature);
+ }
+
+ return;
+ }
+
+ var replay = replayGroup.getBuilder(style.getZIndex(), _BuilderType.default.DEFAULT);
+ replay.drawCustom(
+ /** @type {import("../geom/SimpleGeometry.js").default} */
+ geometry, feature, style.getRenderer());
+}
+/**
+ * @param {import("../render/canvas/BuilderGroup.js").default} replayGroup Replay group.
+ * @param {import("../geom/GeometryCollection.js").default} geometry Geometry.
+ * @param {import("../style/Style.js").default} style Style.
+ * @param {import("../Feature.js").default} feature Feature.
+ */
+
+
+function renderGeometryCollectionGeometry(replayGroup, geometry, style, feature) {
+ var geometries = geometry.getGeometriesArray();
+ var i, ii;
+
+ for (i = 0, ii = geometries.length; i < ii; ++i) {
+ var geometryRenderer = GEOMETRY_RENDERERS[geometries[i].getType()];
+ geometryRenderer(replayGroup, geometries[i], style, feature);
+ }
+}
+/**
+ * @param {import("../render/canvas/BuilderGroup.js").default} builderGroup Replay group.
+ * @param {import("../geom/LineString.js").default|import("../render/Feature.js").default} geometry Geometry.
+ * @param {import("../style/Style.js").default} style Style.
+ * @param {import("../Feature.js").FeatureLike} feature Feature.
+ */
+
+
+function renderLineStringGeometry(builderGroup, geometry, style, feature) {
+ var strokeStyle = style.getStroke();
+
+ if (strokeStyle) {
+ var lineStringReplay = builderGroup.getBuilder(style.getZIndex(), _BuilderType.default.LINE_STRING);
+ lineStringReplay.setFillStrokeStyle(null, strokeStyle);
+ lineStringReplay.drawLineString(geometry, feature);
+ }
+
+ var textStyle = style.getText();
+
+ if (textStyle) {
+ var textReplay = builderGroup.getBuilder(style.getZIndex(), _BuilderType.default.TEXT);
+ textReplay.setTextStyle(textStyle, builderGroup.addDeclutter(false));
+ textReplay.drawText(geometry, feature);
+ }
+}
+/**
+ * @param {import("../render/canvas/BuilderGroup.js").default} builderGroup Replay group.
+ * @param {import("../geom/MultiLineString.js").default|import("../render/Feature.js").default} geometry Geometry.
+ * @param {import("../style/Style.js").default} style Style.
+ * @param {import("../Feature.js").FeatureLike} feature Feature.
+ */
+
+
+function renderMultiLineStringGeometry(builderGroup, geometry, style, feature) {
+ var strokeStyle = style.getStroke();
+
+ if (strokeStyle) {
+ var lineStringReplay = builderGroup.getBuilder(style.getZIndex(), _BuilderType.default.LINE_STRING);
+ lineStringReplay.setFillStrokeStyle(null, strokeStyle);
+ lineStringReplay.drawMultiLineString(geometry, feature);
+ }
+
+ var textStyle = style.getText();
+
+ if (textStyle) {
+ var textReplay = builderGroup.getBuilder(style.getZIndex(), _BuilderType.default.TEXT);
+ textReplay.setTextStyle(textStyle, builderGroup.addDeclutter(false));
+ textReplay.drawText(geometry, feature);
+ }
+}
+/**
+ * @param {import("../render/canvas/BuilderGroup.js").default} builderGroup Replay group.
+ * @param {import("../geom/MultiPolygon.js").default} geometry Geometry.
+ * @param {import("../style/Style.js").default} style Style.
+ * @param {import("../Feature.js").default} feature Feature.
+ */
+
+
+function renderMultiPolygonGeometry(builderGroup, geometry, style, feature) {
+ var fillStyle = style.getFill();
+ var strokeStyle = style.getStroke();
+
+ if (strokeStyle || fillStyle) {
+ var polygonReplay = builderGroup.getBuilder(style.getZIndex(), _BuilderType.default.POLYGON);
+ polygonReplay.setFillStrokeStyle(fillStyle, strokeStyle);
+ polygonReplay.drawMultiPolygon(geometry, feature);
+ }
+
+ var textStyle = style.getText();
+
+ if (textStyle) {
+ var textReplay = builderGroup.getBuilder(style.getZIndex(), _BuilderType.default.TEXT);
+ textReplay.setTextStyle(textStyle, builderGroup.addDeclutter(false));
+ textReplay.drawText(geometry, feature);
+ }
+}
+/**
+ * @param {import("../render/canvas/BuilderGroup.js").default} builderGroup Replay group.
+ * @param {import("../geom/Point.js").default|import("../render/Feature.js").default} geometry Geometry.
+ * @param {import("../style/Style.js").default} style Style.
+ * @param {import("../Feature.js").FeatureLike} feature Feature.
+ */
+
+
+function renderPointGeometry(builderGroup, geometry, style, feature) {
+ var imageStyle = style.getImage();
+
+ if (imageStyle) {
+ if (imageStyle.getImageState() != _ImageState.default.LOADED) {
+ return;
+ }
+
+ var imageReplay = builderGroup.getBuilder(style.getZIndex(), _BuilderType.default.IMAGE);
+ imageReplay.setImageStyle(imageStyle, builderGroup.addDeclutter(false));
+ imageReplay.drawPoint(geometry, feature);
+ }
+
+ var textStyle = style.getText();
+
+ if (textStyle) {
+ var textReplay = builderGroup.getBuilder(style.getZIndex(), _BuilderType.default.TEXT);
+ textReplay.setTextStyle(textStyle, builderGroup.addDeclutter(!!imageStyle));
+ textReplay.drawText(geometry, feature);
+ }
+}
+/**
+ * @param {import("../render/canvas/BuilderGroup.js").default} builderGroup Replay group.
+ * @param {import("../geom/MultiPoint.js").default|import("../render/Feature.js").default} geometry Geometry.
+ * @param {import("../style/Style.js").default} style Style.
+ * @param {import("../Feature.js").FeatureLike} feature Feature.
+ */
+
+
+function renderMultiPointGeometry(builderGroup, geometry, style, feature) {
+ var imageStyle = style.getImage();
+
+ if (imageStyle) {
+ if (imageStyle.getImageState() != _ImageState.default.LOADED) {
+ return;
+ }
+
+ var imageReplay = builderGroup.getBuilder(style.getZIndex(), _BuilderType.default.IMAGE);
+ imageReplay.setImageStyle(imageStyle, builderGroup.addDeclutter(false));
+ imageReplay.drawMultiPoint(geometry, feature);
+ }
+
+ var textStyle = style.getText();
+
+ if (textStyle) {
+ var textReplay = builderGroup.getBuilder(style.getZIndex(), _BuilderType.default.TEXT);
+ textReplay.setTextStyle(textStyle, builderGroup.addDeclutter(!!imageStyle));
+ textReplay.drawText(geometry, feature);
+ }
+}
+/**
+ * @param {import("../render/canvas/BuilderGroup.js").default} builderGroup Replay group.
+ * @param {import("../geom/Polygon.js").default|import("../render/Feature.js").default} geometry Geometry.
+ * @param {import("../style/Style.js").default} style Style.
+ * @param {import("../Feature.js").FeatureLike} feature Feature.
+ */
+
+
+function renderPolygonGeometry(builderGroup, geometry, style, feature) {
+ var fillStyle = style.getFill();
+ var strokeStyle = style.getStroke();
+
+ if (fillStyle || strokeStyle) {
+ var polygonReplay = builderGroup.getBuilder(style.getZIndex(), _BuilderType.default.POLYGON);
+ polygonReplay.setFillStrokeStyle(fillStyle, strokeStyle);
+ polygonReplay.drawPolygon(geometry, feature);
+ }
+
+ var textStyle = style.getText();
+
+ if (textStyle) {
+ var textReplay = builderGroup.getBuilder(style.getZIndex(), _BuilderType.default.TEXT);
+ textReplay.setTextStyle(textStyle, builderGroup.addDeclutter(false));
+ textReplay.drawText(geometry, feature);
+ }
+}
+},{"../render/canvas/BuilderType.js":"../../../node_modules/ol/render/canvas/BuilderType.js","../geom/GeometryType.js":"../../../node_modules/ol/geom/GeometryType.js","../ImageState.js":"../../../node_modules/ol/ImageState.js","../util.js":"../../../node_modules/ol/util.js"}],"../../../node_modules/ol/renderer/canvas/VectorLayer.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _BuilderGroup = _interopRequireDefault(require("../../render/canvas/BuilderGroup.js"));
+
+var _Layer = _interopRequireDefault(require("./Layer.js"));
+
+var _ExecutorGroup = _interopRequireWildcard(require("../../render/canvas/ExecutorGroup.js"));
+
+var _ViewHint = _interopRequireDefault(require("../../ViewHint.js"));
+
+var _transform = require("../../transform.js");
+
+var _extent = require("../../extent.js");
+
+var _hitdetect = require("../../render/canvas/hitdetect.js");
+
+var _vector = require("../vector.js");
+
+var _proj = require("../../proj.js");
+
+var _util = require("../../util.js");
+
+var _coordinate = require("../../coordinate.js");
+
+function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/renderer/canvas/VectorLayer
+ */
+
+
+/**
+ * @classdesc
+ * Canvas renderer for vector layers.
+ * @api
+ */
+var CanvasVectorLayerRenderer =
+/** @class */
+function (_super) {
+ __extends(CanvasVectorLayerRenderer, _super);
+ /**
+ * @param {import("../../layer/Vector.js").default} vectorLayer Vector layer.
+ */
+
+
+ function CanvasVectorLayerRenderer(vectorLayer) {
+ var _this = _super.call(this, vectorLayer) || this;
+ /** @private */
+
+
+ _this.boundHandleStyleImageChange_ = _this.handleStyleImageChange_.bind(_this);
+ /**
+ * @type {boolean}
+ */
+
+ _this.animatingOrInteracting_;
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ _this.dirty_ = false;
+ /**
+ * @type {ImageData}
+ */
+
+ _this.hitDetectionImageData_ = null;
+ /**
+ * @type {Array<import("../../Feature.js").default>}
+ */
+
+ _this.renderedFeatures_ = null;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.renderedRevision_ = -1;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.renderedResolution_ = NaN;
+ /**
+ * @private
+ * @type {import("../../extent.js").Extent}
+ */
+
+ _this.renderedExtent_ = (0, _extent.createEmpty)();
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.renderedRotation_;
+ /**
+ * @private
+ * @type {import("../../coordinate").Coordinate}
+ */
+
+ _this.renderedCenter_ = null;
+ /**
+ * @private
+ * @type {import("../../proj/Projection").default}
+ */
+
+ _this.renderedProjection_ = null;
+ /**
+ * @private
+ * @type {function(import("../../Feature.js").default, import("../../Feature.js").default): number|null}
+ */
+
+ _this.renderedRenderOrder_ = null;
+ /**
+ * @private
+ * @type {import("../../render/canvas/ExecutorGroup").default}
+ */
+
+ _this.replayGroup_ = null;
+ /**
+ * A new replay group had to be created by `prepareFrame()`
+ * @type {boolean}
+ */
+
+ _this.replayGroupChanged = true;
+ /**
+ * Clipping to be performed by `renderFrame()`
+ * @type {boolean}
+ */
+
+ _this.clipping = true;
+ return _this;
+ }
+ /**
+ * Get a rendering container from an existing target, if compatible.
+ * @param {HTMLElement} target Potential render target.
+ * @param {string} transform CSS Transform.
+ * @param {number} opacity Opacity.
+ */
+
+
+ CanvasVectorLayerRenderer.prototype.useContainer = function (target, transform, opacity) {
+ if (opacity < 1) {
+ target = null;
+ }
+
+ _super.prototype.useContainer.call(this, target, transform, opacity);
+ };
+ /**
+ * Render the layer.
+ * @param {import("../../PluggableMap.js").FrameState} frameState Frame state.
+ * @param {HTMLElement} target Target that may be used to render content to.
+ * @return {HTMLElement} The rendered element.
+ */
+
+
+ CanvasVectorLayerRenderer.prototype.renderFrame = function (frameState, target) {
+ var pixelRatio = frameState.pixelRatio;
+ var layerState = frameState.layerStatesArray[frameState.layerIndex]; // set forward and inverse pixel transforms
+
+ (0, _transform.makeScale)(this.pixelTransform, 1 / pixelRatio, 1 / pixelRatio);
+ (0, _transform.makeInverse)(this.inversePixelTransform, this.pixelTransform);
+ var canvasTransform = (0, _transform.toString)(this.pixelTransform);
+ this.useContainer(target, canvasTransform, layerState.opacity);
+ var context = this.context;
+ var canvas = context.canvas;
+ var replayGroup = this.replayGroup_;
+
+ if (!replayGroup || replayGroup.isEmpty()) {
+ if (!this.containerReused && canvas.width > 0) {
+ canvas.width = 0;
+ }
+
+ return this.container;
+ } // resize and clear
+
+
+ var width = Math.round(frameState.size[0] * pixelRatio);
+ var height = Math.round(frameState.size[1] * pixelRatio);
+
+ if (canvas.width != width || canvas.height != height) {
+ canvas.width = width;
+ canvas.height = height;
+
+ if (canvas.style.transform !== canvasTransform) {
+ canvas.style.transform = canvasTransform;
+ }
+ } else if (!this.containerReused) {
+ context.clearRect(0, 0, width, height);
+ }
+
+ this.preRender(context, frameState);
+ var extent = frameState.extent;
+ var viewState = frameState.viewState;
+ var center = viewState.center;
+ var resolution = viewState.resolution;
+ var projection = viewState.projection;
+ var rotation = viewState.rotation;
+ var projectionExtent = projection.getExtent();
+ var vectorSource = this.getLayer().getSource(); // clipped rendering if layer extent is set
+
+ var clipped = false;
+
+ if (layerState.extent && this.clipping) {
+ var layerExtent = (0, _proj.fromUserExtent)(layerState.extent, projection);
+ clipped = !(0, _extent.containsExtent)(layerExtent, frameState.extent) && (0, _extent.intersects)(layerExtent, frameState.extent);
+
+ if (clipped) {
+ this.clipUnrotated(context, frameState, layerExtent);
+ }
+ }
+
+ var viewHints = frameState.viewHints;
+ var snapToPixel = !(viewHints[_ViewHint.default.ANIMATING] || viewHints[_ViewHint.default.INTERACTING]);
+ var transform = this.getRenderTransform(center, resolution, rotation, pixelRatio, width, height, 0);
+ var declutterReplays = this.getLayer().getDeclutter() ? {} : null;
+ replayGroup.execute(context, 1, transform, rotation, snapToPixel, undefined, declutterReplays);
+
+ if (vectorSource.getWrapX() && projection.canWrapX() && !(0, _extent.containsExtent)(projectionExtent, extent)) {
+ var startX = extent[0];
+ var worldWidth = (0, _extent.getWidth)(projectionExtent);
+ var world = 0;
+ var offsetX = void 0;
+
+ while (startX < projectionExtent[0]) {
+ --world;
+ offsetX = worldWidth * world;
+ var transform_1 = this.getRenderTransform(center, resolution, rotation, pixelRatio, width, height, offsetX);
+ replayGroup.execute(context, 1, transform_1, rotation, snapToPixel, undefined, declutterReplays);
+ startX += worldWidth;
+ }
+
+ world = 0;
+ startX = extent[2];
+
+ while (startX > projectionExtent[2]) {
+ ++world;
+ offsetX = worldWidth * world;
+ var transform_2 = this.getRenderTransform(center, resolution, rotation, pixelRatio, width, height, offsetX);
+ replayGroup.execute(context, 1, transform_2, rotation, snapToPixel, undefined, declutterReplays);
+ startX -= worldWidth;
+ }
+ }
+
+ if (declutterReplays) {
+ var viewHints_1 = frameState.viewHints;
+ var hifi = !(viewHints_1[_ViewHint.default.ANIMATING] || viewHints_1[_ViewHint.default.INTERACTING]);
+ (0, _ExecutorGroup.replayDeclutter)(declutterReplays, context, rotation, 1, hifi, frameState.declutterItems);
+ }
+
+ if (clipped) {
+ context.restore();
+ }
+
+ this.postRender(context, frameState);
+ var opacity = layerState.opacity;
+ var container = this.container;
+
+ if (opacity !== parseFloat(container.style.opacity)) {
+ container.style.opacity = opacity === 1 ? '' : String(opacity);
+ }
+
+ if (this.renderedRotation_ !== viewState.rotation) {
+ this.renderedRotation_ = viewState.rotation;
+ this.hitDetectionImageData_ = null;
+ }
+
+ return this.container;
+ };
+ /**
+ * Asynchronous layer level hit detection.
+ * @param {import("../../pixel.js").Pixel} pixel Pixel.
+ * @return {Promise<Array<import("../../Feature").default>>} Promise that resolves with an array of features.
+ */
+
+
+ CanvasVectorLayerRenderer.prototype.getFeatures = function (pixel) {
+ return new Promise(function (resolve, reject) {
+ if (!this.hitDetectionImageData_ && !this.animatingOrInteracting_) {
+ var size = [this.context.canvas.width, this.context.canvas.height];
+ (0, _transform.apply)(this.pixelTransform, size);
+ var center = this.renderedCenter_;
+ var resolution = this.renderedResolution_;
+ var rotation = this.renderedRotation_;
+ var projection = this.renderedProjection_;
+ var extent = this.renderedExtent_;
+ var layer = this.getLayer();
+ var transforms = [];
+ var width = size[0] / 2;
+ var height = size[1] / 2;
+ transforms.push(this.getRenderTransform(center, resolution, rotation, 0.5, width, height, 0).slice());
+ var source = layer.getSource();
+ var projectionExtent = projection.getExtent();
+
+ if (source.getWrapX() && projection.canWrapX() && !(0, _extent.containsExtent)(projectionExtent, extent)) {
+ var startX = extent[0];
+ var worldWidth = (0, _extent.getWidth)(projectionExtent);
+ var world = 0;
+ var offsetX = void 0;
+
+ while (startX < projectionExtent[0]) {
+ --world;
+ offsetX = worldWidth * world;
+ transforms.push(this.getRenderTransform(center, resolution, rotation, 0.5, width, height, offsetX).slice());
+ startX += worldWidth;
+ }
+
+ world = 0;
+ startX = extent[2];
+
+ while (startX > projectionExtent[2]) {
+ ++world;
+ offsetX = worldWidth * world;
+ transforms.push(this.getRenderTransform(center, resolution, rotation, 0.5, width, height, offsetX).slice());
+ startX -= worldWidth;
+ }
+ }
+
+ this.hitDetectionImageData_ = (0, _hitdetect.createHitDetectionImageData)(size, transforms, this.renderedFeatures_, layer.getStyleFunction(), extent, resolution, rotation);
+ }
+
+ resolve((0, _hitdetect.hitDetect)(pixel, this.renderedFeatures_, this.hitDetectionImageData_));
+ }.bind(this));
+ };
+ /**
+ * @param {import("../../coordinate.js").Coordinate} coordinate Coordinate.
+ * @param {import("../../PluggableMap.js").FrameState} frameState Frame state.
+ * @param {number} hitTolerance Hit tolerance in pixels.
+ * @param {function(import("../../Feature.js").FeatureLike, import("../../layer/Layer.js").default): T} callback Feature callback.
+ * @param {Array<import("../../Feature.js").FeatureLike>} declutteredFeatures Decluttered features.
+ * @return {T|void} Callback result.
+ * @template T
+ */
+
+
+ CanvasVectorLayerRenderer.prototype.forEachFeatureAtCoordinate = function (coordinate, frameState, hitTolerance, callback, declutteredFeatures) {
+ if (!this.replayGroup_) {
+ return undefined;
+ } else {
+ var resolution = frameState.viewState.resolution;
+ var rotation = frameState.viewState.rotation;
+ var layer_1 = this.getLayer();
+ /** @type {!Object<string, boolean>} */
+
+ var features_1 = {};
+ var result = this.replayGroup_.forEachFeatureAtCoordinate(coordinate, resolution, rotation, hitTolerance,
+ /**
+ * @param {import("../../Feature.js").FeatureLike} feature Feature.
+ * @return {?} Callback result.
+ */
+ function (feature) {
+ var key = (0, _util.getUid)(feature);
+
+ if (!(key in features_1)) {
+ features_1[key] = true;
+ return callback(feature, layer_1);
+ }
+ }, layer_1.getDeclutter() ? declutteredFeatures : null);
+ return result;
+ }
+ };
+ /**
+ * Perform action necessary to get the layer rendered after new fonts have loaded
+ */
+
+
+ CanvasVectorLayerRenderer.prototype.handleFontsChanged = function () {
+ var layer = this.getLayer();
+
+ if (layer.getVisible() && this.replayGroup_) {
+ layer.changed();
+ }
+ };
+ /**
+ * Handle changes in image style state.
+ * @param {import("../../events/Event.js").default} event Image style change event.
+ * @private
+ */
+
+
+ CanvasVectorLayerRenderer.prototype.handleStyleImageChange_ = function (event) {
+ this.renderIfReadyAndVisible();
+ };
+ /**
+ * Determine whether render should be called.
+ * @param {import("../../PluggableMap.js").FrameState} frameState Frame state.
+ * @return {boolean} Layer is ready to be rendered.
+ */
+
+
+ CanvasVectorLayerRenderer.prototype.prepareFrame = function (frameState) {
+ var vectorLayer = this.getLayer();
+ var vectorSource = vectorLayer.getSource();
+
+ if (!vectorSource) {
+ return false;
+ }
+
+ var animating = frameState.viewHints[_ViewHint.default.ANIMATING];
+ var interacting = frameState.viewHints[_ViewHint.default.INTERACTING];
+ var updateWhileAnimating = vectorLayer.getUpdateWhileAnimating();
+ var updateWhileInteracting = vectorLayer.getUpdateWhileInteracting();
+
+ if (!this.dirty_ && !updateWhileAnimating && animating || !updateWhileInteracting && interacting) {
+ this.animatingOrInteracting_ = true;
+ return true;
+ }
+
+ this.animatingOrInteracting_ = false;
+ var frameStateExtent = frameState.extent;
+ var viewState = frameState.viewState;
+ var projection = viewState.projection;
+ var resolution = viewState.resolution;
+ var pixelRatio = frameState.pixelRatio;
+ var vectorLayerRevision = vectorLayer.getRevision();
+ var vectorLayerRenderBuffer = vectorLayer.getRenderBuffer();
+ var vectorLayerRenderOrder = vectorLayer.getRenderOrder();
+
+ if (vectorLayerRenderOrder === undefined) {
+ vectorLayerRenderOrder = _vector.defaultOrder;
+ }
+
+ var center = viewState.center.slice();
+ var extent = (0, _extent.buffer)(frameStateExtent, vectorLayerRenderBuffer * resolution);
+ var loadExtents = [extent.slice()];
+ var projectionExtent = projection.getExtent();
+
+ if (vectorSource.getWrapX() && projection.canWrapX() && !(0, _extent.containsExtent)(projectionExtent, frameState.extent)) {
+ // For the replay group, we need an extent that intersects the real world
+ // (-180° to +180°). To support geometries in a coordinate range from -540°
+ // to +540°, we add at least 1 world width on each side of the projection
+ // extent. If the viewport is wider than the world, we need to add half of
+ // the viewport width to make sure we cover the whole viewport.
+ var worldWidth = (0, _extent.getWidth)(projectionExtent);
+ var gutter = Math.max((0, _extent.getWidth)(extent) / 2, worldWidth);
+ extent[0] = projectionExtent[0] - gutter;
+ extent[2] = projectionExtent[2] + gutter;
+ (0, _coordinate.wrapX)(center, projection);
+ var loadExtent = (0, _extent.wrapX)(loadExtents[0], projection); // If the extent crosses the date line, we load data for both edges of the worlds
+
+ if (loadExtent[0] < projectionExtent[0] && loadExtent[2] < projectionExtent[2]) {
+ loadExtents.push([loadExtent[0] + worldWidth, loadExtent[1], loadExtent[2] + worldWidth, loadExtent[3]]);
+ } else if (loadExtent[0] > projectionExtent[0] && loadExtent[2] > projectionExtent[2]) {
+ loadExtents.push([loadExtent[0] - worldWidth, loadExtent[1], loadExtent[2] - worldWidth, loadExtent[3]]);
+ }
+ }
+
+ if (!this.dirty_ && this.renderedResolution_ == resolution && this.renderedRevision_ == vectorLayerRevision && this.renderedRenderOrder_ == vectorLayerRenderOrder && (0, _extent.containsExtent)(this.renderedExtent_, extent)) {
+ this.replayGroupChanged = false;
+ return true;
+ }
+
+ this.replayGroup_ = null;
+ this.dirty_ = false;
+ var replayGroup = new _BuilderGroup.default((0, _vector.getTolerance)(resolution, pixelRatio), extent, resolution, pixelRatio, vectorLayer.getDeclutter());
+ var userProjection = (0, _proj.getUserProjection)();
+ var userTransform;
+
+ if (userProjection) {
+ for (var i = 0, ii = loadExtents.length; i < ii; ++i) {
+ vectorSource.loadFeatures((0, _proj.toUserExtent)(loadExtents[i], projection), resolution, userProjection);
+ }
+
+ userTransform = (0, _proj.getTransformFromProjections)(userProjection, projection);
+ } else {
+ for (var i = 0, ii = loadExtents.length; i < ii; ++i) {
+ vectorSource.loadFeatures(loadExtents[i], resolution, projection);
+ }
+ }
+
+ var squaredTolerance = (0, _vector.getSquaredTolerance)(resolution, pixelRatio);
+ /**
+ * @param {import("../../Feature.js").default} feature Feature.
+ * @this {CanvasVectorLayerRenderer}
+ */
+
+ var render = function (feature) {
+ var styles;
+ var styleFunction = feature.getStyleFunction() || vectorLayer.getStyleFunction();
+
+ if (styleFunction) {
+ styles = styleFunction(feature, resolution);
+ }
+
+ if (styles) {
+ var dirty = this.renderFeature(feature, squaredTolerance, styles, replayGroup, userTransform);
+ this.dirty_ = this.dirty_ || dirty;
+ }
+ }.bind(this);
+
+ var userExtent = (0, _proj.toUserExtent)(extent, projection);
+ /** @type {Array<import("../../Feature.js").default>} */
+
+ var features = vectorSource.getFeaturesInExtent(userExtent);
+
+ if (vectorLayerRenderOrder) {
+ features.sort(vectorLayerRenderOrder);
+ }
+
+ for (var i = 0, ii = features.length; i < ii; ++i) {
+ render(features[i]);
+ }
+
+ this.renderedFeatures_ = features;
+ var replayGroupInstructions = replayGroup.finish();
+ var executorGroup = new _ExecutorGroup.default(extent, resolution, pixelRatio, vectorSource.getOverlaps(), replayGroupInstructions, vectorLayer.getRenderBuffer());
+ this.renderedResolution_ = resolution;
+ this.renderedRevision_ = vectorLayerRevision;
+ this.renderedRenderOrder_ = vectorLayerRenderOrder;
+ this.renderedExtent_ = extent;
+ this.renderedCenter_ = center;
+ this.renderedProjection_ = projection;
+ this.replayGroup_ = executorGroup;
+ this.hitDetectionImageData_ = null;
+ this.replayGroupChanged = true;
+ return true;
+ };
+ /**
+ * @param {import("../../Feature.js").default} feature Feature.
+ * @param {number} squaredTolerance Squared render tolerance.
+ * @param {import("../../style/Style.js").default|Array<import("../../style/Style.js").default>} styles The style or array of styles.
+ * @param {import("../../render/canvas/BuilderGroup.js").default} builderGroup Builder group.
+ * @param {import("../../proj.js").TransformFunction=} opt_transform Transform from user to view projection.
+ * @return {boolean} `true` if an image is loading.
+ */
+
+
+ CanvasVectorLayerRenderer.prototype.renderFeature = function (feature, squaredTolerance, styles, builderGroup, opt_transform) {
+ if (!styles) {
+ return false;
+ }
+
+ var loading = false;
+
+ if (Array.isArray(styles)) {
+ for (var i = 0, ii = styles.length; i < ii; ++i) {
+ loading = (0, _vector.renderFeature)(builderGroup, feature, styles[i], squaredTolerance, this.boundHandleStyleImageChange_, opt_transform) || loading;
+ }
+ } else {
+ loading = (0, _vector.renderFeature)(builderGroup, feature, styles, squaredTolerance, this.boundHandleStyleImageChange_, opt_transform);
+ }
+
+ return loading;
+ };
+
+ return CanvasVectorLayerRenderer;
+}(_Layer.default);
+
+var _default = CanvasVectorLayerRenderer;
+exports.default = _default;
+},{"../../render/canvas/BuilderGroup.js":"../../../node_modules/ol/render/canvas/BuilderGroup.js","./Layer.js":"../../../node_modules/ol/renderer/canvas/Layer.js","../../render/canvas/ExecutorGroup.js":"../../../node_modules/ol/render/canvas/ExecutorGroup.js","../../ViewHint.js":"../../../node_modules/ol/ViewHint.js","../../transform.js":"../../../node_modules/ol/transform.js","../../extent.js":"../../../node_modules/ol/extent.js","../../render/canvas/hitdetect.js":"../../../node_modules/ol/render/canvas/hitdetect.js","../vector.js":"../../../node_modules/ol/renderer/vector.js","../../proj.js":"../../../node_modules/ol/proj.js","../../util.js":"../../../node_modules/ol/util.js","../../coordinate.js":"../../../node_modules/ol/coordinate.js"}],"../../../node_modules/ol/layer/Vector.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _BaseVector = _interopRequireDefault(require("./BaseVector.js"));
+
+var _VectorLayer = _interopRequireDefault(require("../renderer/canvas/VectorLayer.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/layer/Vector
+ */
+
+
+/**
+ * @classdesc
+ * Vector data that is rendered client-side.
+ * Note that any property set in the options is set as a {@link module:ol/Object~BaseObject}
+ * property on the layer object; for example, setting `title: 'My Title'` in the
+ * options means that `title` is observable, and has get/set accessors.
+ *
+ * @extends {BaseVectorLayer<import("../source/Vector.js").default>}
+ * @api
+ */
+var VectorLayer =
+/** @class */
+function (_super) {
+ __extends(VectorLayer, _super);
+ /**
+ * @param {import("./BaseVector.js").Options=} opt_options Options.
+ */
+
+
+ function VectorLayer(opt_options) {
+ return _super.call(this, opt_options) || this;
+ }
+ /**
+ * Create a renderer for this layer.
+ * @return {import("../renderer/Layer.js").default} A layer renderer.
+ */
+
+
+ VectorLayer.prototype.createRenderer = function () {
+ return new _VectorLayer.default(this);
+ };
+
+ return VectorLayer;
+}(_BaseVector.default);
+
+var _default = VectorLayer;
+exports.default = _default;
+},{"./BaseVector.js":"../../../node_modules/ol/layer/BaseVector.js","../renderer/canvas/VectorLayer.js":"../../../node_modules/ol/renderer/canvas/VectorLayer.js"}],"../../../node_modules/ol/structs/RBush.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _rbush = _interopRequireDefault(require("rbush/rbush.js"));
+
+var _extent = require("../extent.js");
+
+var _util = require("../util.js");
+
+var _obj = require("../obj.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module ol/structs/RBush
+ */
+
+/**
+ * @typedef {Object} Entry
+ * @property {number} minX
+ * @property {number} minY
+ * @property {number} maxX
+ * @property {number} maxY
+ * @property {Object} [value]
+ */
+
+/**
+ * @classdesc
+ * Wrapper around the RBush by Vladimir Agafonkin.
+ * See https://github.com/mourner/rbush.
+ *
+ * @template T
+ */
+var RBush =
+/** @class */
+function () {
+ /**
+ * @param {number=} opt_maxEntries Max entries.
+ */
+ function RBush(opt_maxEntries) {
+ /**
+ * @private
+ */
+ this.rbush_ = new _rbush.default(opt_maxEntries);
+ /**
+ * A mapping between the objects added to this rbush wrapper
+ * and the objects that are actually added to the internal rbush.
+ * @private
+ * @type {Object<string, Entry>}
+ */
+
+ this.items_ = {};
+ }
+ /**
+ * Insert a value into the RBush.
+ * @param {import("../extent.js").Extent} extent Extent.
+ * @param {T} value Value.
+ */
+
+
+ RBush.prototype.insert = function (extent, value) {
+ /** @type {Entry} */
+ var item = {
+ minX: extent[0],
+ minY: extent[1],
+ maxX: extent[2],
+ maxY: extent[3],
+ value: value
+ };
+ this.rbush_.insert(item);
+ this.items_[(0, _util.getUid)(value)] = item;
+ };
+ /**
+ * Bulk-insert values into the RBush.
+ * @param {Array<import("../extent.js").Extent>} extents Extents.
+ * @param {Array<T>} values Values.
+ */
+
+
+ RBush.prototype.load = function (extents, values) {
+ var items = new Array(values.length);
+
+ for (var i = 0, l = values.length; i < l; i++) {
+ var extent = extents[i];
+ var value = values[i];
+ /** @type {Entry} */
+
+ var item = {
+ minX: extent[0],
+ minY: extent[1],
+ maxX: extent[2],
+ maxY: extent[3],
+ value: value
+ };
+ items[i] = item;
+ this.items_[(0, _util.getUid)(value)] = item;
+ }
+
+ this.rbush_.load(items);
+ };
+ /**
+ * Remove a value from the RBush.
+ * @param {T} value Value.
+ * @return {boolean} Removed.
+ */
+
+
+ RBush.prototype.remove = function (value) {
+ var uid = (0, _util.getUid)(value); // get the object in which the value was wrapped when adding to the
+ // internal rbush. then use that object to do the removal.
+
+ var item = this.items_[uid];
+ delete this.items_[uid];
+ return this.rbush_.remove(item) !== null;
+ };
+ /**
+ * Update the extent of a value in the RBush.
+ * @param {import("../extent.js").Extent} extent Extent.
+ * @param {T} value Value.
+ */
+
+
+ RBush.prototype.update = function (extent, value) {
+ var item = this.items_[(0, _util.getUid)(value)];
+ var bbox = [item.minX, item.minY, item.maxX, item.maxY];
+
+ if (!(0, _extent.equals)(bbox, extent)) {
+ this.remove(value);
+ this.insert(extent, value);
+ }
+ };
+ /**
+ * Return all values in the RBush.
+ * @return {Array<T>} All.
+ */
+
+
+ RBush.prototype.getAll = function () {
+ var items = this.rbush_.all();
+ return items.map(function (item) {
+ return item.value;
+ });
+ };
+ /**
+ * Return all values in the given extent.
+ * @param {import("../extent.js").Extent} extent Extent.
+ * @return {Array<T>} All in extent.
+ */
+
+
+ RBush.prototype.getInExtent = function (extent) {
+ /** @type {Entry} */
+ var bbox = {
+ minX: extent[0],
+ minY: extent[1],
+ maxX: extent[2],
+ maxY: extent[3]
+ };
+ var items = this.rbush_.search(bbox);
+ return items.map(function (item) {
+ return item.value;
+ });
+ };
+ /**
+ * Calls a callback function with each value in the tree.
+ * If the callback returns a truthy value, this value is returned without
+ * checking the rest of the tree.
+ * @param {function(T): *} callback Callback.
+ * @return {*} Callback return value.
+ */
+
+
+ RBush.prototype.forEach = function (callback) {
+ return this.forEach_(this.getAll(), callback);
+ };
+ /**
+ * Calls a callback function with each value in the provided extent.
+ * @param {import("../extent.js").Extent} extent Extent.
+ * @param {function(T): *} callback Callback.
+ * @return {*} Callback return value.
+ */
+
+
+ RBush.prototype.forEachInExtent = function (extent, callback) {
+ return this.forEach_(this.getInExtent(extent), callback);
+ };
+ /**
+ * @param {Array<T>} values Values.
+ * @param {function(T): *} callback Callback.
+ * @private
+ * @return {*} Callback return value.
+ */
+
+
+ RBush.prototype.forEach_ = function (values, callback) {
+ var result;
+
+ for (var i = 0, l = values.length; i < l; i++) {
+ result = callback(values[i]);
+
+ if (result) {
+ return result;
+ }
+ }
+
+ return result;
+ };
+ /**
+ * @return {boolean} Is empty.
+ */
+
+
+ RBush.prototype.isEmpty = function () {
+ return (0, _obj.isEmpty)(this.items_);
+ };
+ /**
+ * Remove all values from the RBush.
+ */
+
+
+ RBush.prototype.clear = function () {
+ this.rbush_.clear();
+ this.items_ = {};
+ };
+ /**
+ * @param {import("../extent.js").Extent=} opt_extent Extent.
+ * @return {import("../extent.js").Extent} Extent.
+ */
+
+
+ RBush.prototype.getExtent = function (opt_extent) {
+ var data = this.rbush_.toJSON();
+ return (0, _extent.createOrUpdate)(data.minX, data.minY, data.maxX, data.maxY, opt_extent);
+ };
+ /**
+ * @param {RBush} rbush R-Tree.
+ */
+
+
+ RBush.prototype.concat = function (rbush) {
+ this.rbush_.load(rbush.rbush_.all());
+
+ for (var i in rbush.items_) {
+ this.items_[i] = rbush.items_[i];
+ }
+ };
+
+ return RBush;
+}();
+
+var _default = RBush;
+exports.default = _default;
+},{"rbush/rbush.js":"../../../node_modules/rbush/rbush.js","../extent.js":"../../../node_modules/ol/extent.js","../util.js":"../../../node_modules/ol/util.js","../obj.js":"../../../node_modules/ol/obj.js"}],"../../../node_modules/ol/source/Source.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Object = _interopRequireDefault(require("../Object.js"));
+
+var _State = _interopRequireDefault(require("./State.js"));
+
+var _util = require("../util.js");
+
+var _proj = require("../proj.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/source/Source
+ */
+
+
+/**
+ * A function that returns a string or an array of strings representing source
+ * attributions.
+ *
+ * @typedef {function(import("../PluggableMap.js").FrameState): (string|Array<string>)} Attribution
+ */
+
+/**
+ * A type that can be used to provide attribution information for data sources.
+ *
+ * It represents either
+ * * a simple string (e.g. `'© Acme Inc.'`)
+ * * an array of simple strings (e.g. `['© Acme Inc.', '© Bacme Inc.']`)
+ * * a function that returns a string or array of strings ({@link module:ol/source/Source~Attribution})
+ *
+ * @typedef {string|Array<string>|Attribution} AttributionLike
+ */
+
+/**
+ * @typedef {Object} Options
+ * @property {AttributionLike} [attributions]
+ * @property {boolean} [attributionsCollapsible=true] Attributions are collapsible.
+ * @property {import("../proj.js").ProjectionLike} [projection] Projection. Default is the view projection.
+ * @property {import("./State.js").default} [state='ready']
+ * @property {boolean} [wrapX=false]
+ */
+
+/**
+ * @classdesc
+ * Abstract base class; normally only used for creating subclasses and not
+ * instantiated in apps.
+ * Base class for {@link module:ol/layer/Layer~Layer} sources.
+ *
+ * A generic `change` event is triggered when the state of the source changes.
+ * @abstract
+ * @api
+ */
+var Source =
+/** @class */
+function (_super) {
+ __extends(Source, _super);
+ /**
+ * @param {Options} options Source options.
+ */
+
+
+ function Source(options) {
+ var _this = _super.call(this) || this;
+ /**
+ * @private
+ * @type {import("../proj/Projection.js").default}
+ */
+
+
+ _this.projection_ = (0, _proj.get)(options.projection);
+ /**
+ * @private
+ * @type {?Attribution}
+ */
+
+ _this.attributions_ = adaptAttributions(options.attributions);
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ _this.attributionsCollapsible_ = options.attributionsCollapsible !== undefined ? options.attributionsCollapsible : true;
+ /**
+ * This source is currently loading data. Sources that defer loading to the
+ * map's tile queue never set this to `true`.
+ * @type {boolean}
+ */
+
+ _this.loading = false;
+ /**
+ * @private
+ * @type {import("./State.js").default}
+ */
+
+ _this.state_ = options.state !== undefined ? options.state : _State.default.READY;
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ _this.wrapX_ = options.wrapX !== undefined ? options.wrapX : false;
+ return _this;
+ }
+ /**
+ * Get the attribution function for the source.
+ * @return {?Attribution} Attribution function.
+ */
+
+
+ Source.prototype.getAttributions = function () {
+ return this.attributions_;
+ };
+ /**
+ * @return {boolean} Attributions are collapsible.
+ */
+
+
+ Source.prototype.getAttributionsCollapsible = function () {
+ return this.attributionsCollapsible_;
+ };
+ /**
+ * Get the projection of the source.
+ * @return {import("../proj/Projection.js").default} Projection.
+ * @api
+ */
+
+
+ Source.prototype.getProjection = function () {
+ return this.projection_;
+ };
+ /**
+ * @abstract
+ * @return {Array<number>|undefined} Resolutions.
+ */
+
+
+ Source.prototype.getResolutions = function () {
+ return (0, _util.abstract)();
+ };
+ /**
+ * Get the state of the source, see {@link module:ol/source/State~State} for possible states.
+ * @return {import("./State.js").default} State.
+ * @api
+ */
+
+
+ Source.prototype.getState = function () {
+ return this.state_;
+ };
+ /**
+ * @return {boolean|undefined} Wrap X.
+ */
+
+
+ Source.prototype.getWrapX = function () {
+ return this.wrapX_;
+ };
+ /**
+ * @return {Object|undefined} Context options.
+ */
+
+
+ Source.prototype.getContextOptions = function () {
+ return undefined;
+ };
+ /**
+ * Refreshes the source. The source will be cleared, and data from the server will be reloaded.
+ * @api
+ */
+
+
+ Source.prototype.refresh = function () {
+ this.changed();
+ };
+ /**
+ * Set the attributions of the source.
+ * @param {AttributionLike|undefined} attributions Attributions.
+ * Can be passed as `string`, `Array<string>`, {@link module:ol/source/Source~Attribution},
+ * or `undefined`.
+ * @api
+ */
+
+
+ Source.prototype.setAttributions = function (attributions) {
+ this.attributions_ = adaptAttributions(attributions);
+ this.changed();
+ };
+ /**
+ * Set the state of the source.
+ * @param {import("./State.js").default} state State.
+ */
+
+
+ Source.prototype.setState = function (state) {
+ this.state_ = state;
+ this.changed();
+ };
+
+ return Source;
+}(_Object.default);
+/**
+ * Turns the attributions option into an attributions function.
+ * @param {AttributionLike|undefined} attributionLike The attribution option.
+ * @return {?Attribution} An attribution function (or null).
+ */
+
+
+function adaptAttributions(attributionLike) {
+ if (!attributionLike) {
+ return null;
+ }
+
+ if (Array.isArray(attributionLike)) {
+ return function (frameState) {
+ return attributionLike;
+ };
+ }
+
+ if (typeof attributionLike === 'function') {
+ return attributionLike;
+ }
+
+ return function (frameState) {
+ return [attributionLike];
+ };
+}
+
+var _default = Source;
+exports.default = _default;
+},{"../Object.js":"../../../node_modules/ol/Object.js","./State.js":"../../../node_modules/ol/source/State.js","../util.js":"../../../node_modules/ol/util.js","../proj.js":"../../../node_modules/ol/proj.js"}],"../../../node_modules/ol/source/VectorEventType.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+/**
+ * @module ol/source/VectorEventType
+ */
+
+/**
+ * @enum {string}
+ */
+var _default = {
+ /**
+ * Triggered when a feature is added to the source.
+ * @event module:ol/source/Vector.VectorSourceEvent#addfeature
+ * @api
+ */
+ ADDFEATURE: 'addfeature',
+
+ /**
+ * Triggered when a feature is updated.
+ * @event module:ol/source/Vector.VectorSourceEvent#changefeature
+ * @api
+ */
+ CHANGEFEATURE: 'changefeature',
+
+ /**
+ * Triggered when the clear method is called on the source.
+ * @event module:ol/source/Vector.VectorSourceEvent#clear
+ * @api
+ */
+ CLEAR: 'clear',
+
+ /**
+ * Triggered when a feature is removed from the source.
+ * See {@link module:ol/source/Vector#clear source.clear()} for exceptions.
+ * @event module:ol/source/Vector.VectorSourceEvent#removefeature
+ * @api
+ */
+ REMOVEFEATURE: 'removefeature'
+};
+exports.default = _default;
+},{}],"../../../node_modules/ol/loadingstrategy.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.all = all;
+exports.bbox = bbox;
+exports.tile = tile;
+
+/**
+ * @module ol/loadingstrategy
+ */
+
+/**
+ * Strategy function for loading all features with a single request.
+ * @param {import("./extent.js").Extent} extent Extent.
+ * @param {number} resolution Resolution.
+ * @return {Array<import("./extent.js").Extent>} Extents.
+ * @api
+ */
+function all(extent, resolution) {
+ return [[-Infinity, -Infinity, Infinity, Infinity]];
+}
+/**
+ * Strategy function for loading features based on the view's extent and
+ * resolution.
+ * @param {import("./extent.js").Extent} extent Extent.
+ * @param {number} resolution Resolution.
+ * @return {Array<import("./extent.js").Extent>} Extents.
+ * @api
+ */
+
+
+function bbox(extent, resolution) {
+ return [extent];
+}
+/**
+ * Creates a strategy function for loading features based on a tile grid.
+ * @param {import("./tilegrid/TileGrid.js").default} tileGrid Tile grid.
+ * @return {function(import("./extent.js").Extent, number): Array<import("./extent.js").Extent>} Loading strategy.
+ * @api
+ */
+
+
+function tile(tileGrid) {
+ return (
+ /**
+ * @param {import("./extent.js").Extent} extent Extent.
+ * @param {number} resolution Resolution.
+ * @return {Array<import("./extent.js").Extent>} Extents.
+ */
+ function (extent, resolution) {
+ var z = tileGrid.getZForResolution(resolution);
+ var tileRange = tileGrid.getTileRangeForExtentAndZ(extent, z);
+ /** @type {Array<import("./extent.js").Extent>} */
+
+ var extents = [];
+ /** @type {import("./tilecoord.js").TileCoord} */
+
+ var tileCoord = [z, 0, 0];
+
+ for (tileCoord[1] = tileRange.minX; tileCoord[1] <= tileRange.maxX; ++tileCoord[1]) {
+ for (tileCoord[2] = tileRange.minY; tileCoord[2] <= tileRange.maxY; ++tileCoord[2]) {
+ extents.push(tileGrid.getTileCoordExtent(tileCoord));
+ }
+ }
+
+ return extents;
+ }
+ );
+}
+},{}],"../../../node_modules/ol/format/FormatType.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+/**
+ * @module ol/format/FormatType
+ */
+
+/**
+ * @enum {string}
+ */
+var _default = {
+ ARRAY_BUFFER: 'arraybuffer',
+ JSON: 'json',
+ TEXT: 'text',
+ XML: 'xml'
+};
+exports.default = _default;
+},{}],"../../../node_modules/ol/featureloader.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.loadFeaturesXhr = loadFeaturesXhr;
+exports.xhr = xhr;
+exports.setWithCredentials = setWithCredentials;
+
+var _FormatType = _interopRequireDefault(require("./format/FormatType.js"));
+
+var _functions = require("./functions.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module ol/featureloader
+ */
+
+/**
+ *
+ * @type {boolean}
+ * @private
+ */
+var withCredentials = false;
+/**
+ * {@link module:ol/source/Vector} sources use a function of this type to
+ * load features.
+ *
+ * This function takes an {@link module:ol/extent~Extent} representing the area to be loaded,
+ * a `{number}` representing the resolution (map units per pixel) and an
+ * {@link module:ol/proj/Projection} for the projection as
+ * arguments. `this` within the function is bound to the
+ * {@link module:ol/source/Vector} it's called from.
+ *
+ * The function is responsible for loading the features and adding them to the
+ * source.
+ * @typedef {function(this:(import("./source/Vector").default|import("./VectorTile.js").default), import("./extent.js").Extent, number,
+ * import("./proj/Projection.js").default): void} FeatureLoader
+ * @api
+ */
+
+/**
+ * {@link module:ol/source/Vector} sources use a function of this type to
+ * get the url to load features from.
+ *
+ * This function takes an {@link module:ol/extent~Extent} representing the area
+ * to be loaded, a `{number}` representing the resolution (map units per pixel)
+ * and an {@link module:ol/proj/Projection} for the projection as
+ * arguments and returns a `{string}` representing the URL.
+ * @typedef {function(import("./extent.js").Extent, number, import("./proj/Projection.js").default): string} FeatureUrlFunction
+ * @api
+ */
+
+/**
+ * @param {string|FeatureUrlFunction} url Feature URL service.
+ * @param {import("./format/Feature.js").default} format Feature format.
+ * @param {function(this:import("./VectorTile.js").default, Array<import("./Feature.js").default>, import("./proj/Projection.js").default, import("./extent.js").Extent): void|function(this:import("./source/Vector").default, Array<import("./Feature.js").default>): void} success
+ * Function called with the loaded features and optionally with the data
+ * projection. Called with the vector tile or source as `this`.
+ * @param {function(this:import("./VectorTile.js").default): void|function(this:import("./source/Vector").default): void} failure
+ * Function called when loading failed. Called with the vector tile or
+ * source as `this`.
+ * @return {FeatureLoader} The feature loader.
+ */
+
+function loadFeaturesXhr(url, format, success, failure) {
+ return (
+ /**
+ * @param {import("./extent.js").Extent} extent Extent.
+ * @param {number} resolution Resolution.
+ * @param {import("./proj/Projection.js").default} projection Projection.
+ * @this {import("./source/Vector").default|import("./VectorTile.js").default}
+ */
+ function (extent, resolution, projection) {
+ var xhr = new XMLHttpRequest();
+ xhr.open('GET', typeof url === 'function' ? url(extent, resolution, projection) : url, true);
+
+ if (format.getType() == _FormatType.default.ARRAY_BUFFER) {
+ xhr.responseType = 'arraybuffer';
+ }
+
+ xhr.withCredentials = withCredentials;
+ /**
+ * @param {Event} event Event.
+ * @private
+ */
+
+ xhr.onload = function (event) {
+ // status will be 0 for file:// urls
+ if (!xhr.status || xhr.status >= 200 && xhr.status < 300) {
+ var type = format.getType();
+ /** @type {Document|Node|Object|string|undefined} */
+
+ var source = void 0;
+
+ if (type == _FormatType.default.JSON || type == _FormatType.default.TEXT) {
+ source = xhr.responseText;
+ } else if (type == _FormatType.default.XML) {
+ source = xhr.responseXML;
+
+ if (!source) {
+ source = new DOMParser().parseFromString(xhr.responseText, 'application/xml');
+ }
+ } else if (type == _FormatType.default.ARRAY_BUFFER) {
+ source =
+ /** @type {ArrayBuffer} */
+ xhr.response;
+ }
+
+ if (source) {
+ success.call(this, format.readFeatures(source, {
+ extent: extent,
+ featureProjection: projection
+ }), format.readProjection(source));
+ } else {
+ failure.call(this);
+ }
+ } else {
+ failure.call(this);
+ }
+ }.bind(this);
+ /**
+ * @private
+ */
+
+
+ xhr.onerror = function () {
+ failure.call(this);
+ }.bind(this);
+
+ xhr.send();
+ }
+ );
+}
+/**
+ * Create an XHR feature loader for a `url` and `format`. The feature loader
+ * loads features (with XHR), parses the features, and adds them to the
+ * vector source.
+ * @param {string|FeatureUrlFunction} url Feature URL service.
+ * @param {import("./format/Feature.js").default} format Feature format.
+ * @return {FeatureLoader} The feature loader.
+ * @api
+ */
+
+
+function xhr(url, format) {
+ return loadFeaturesXhr(url, format,
+ /**
+ * @param {Array<import("./Feature.js").default>} features The loaded features.
+ * @param {import("./proj/Projection.js").default} dataProjection Data
+ * projection.
+ * @this {import("./source/Vector").default|import("./VectorTile.js").default}
+ */
+ function (features, dataProjection) {
+ var sourceOrTile =
+ /** @type {?} */
+ this;
+
+ if (typeof sourceOrTile.addFeatures === 'function') {
+ /** @type {import("./source/Vector").default} */
+ sourceOrTile.addFeatures(features);
+ }
+ },
+ /* FIXME handle error */
+ _functions.VOID);
+}
+/**
+ * Setter for the withCredentials configuration for the XHR.
+ *
+ * @param {boolean} xhrWithCredentials The value of withCredentials to set.
+ * Compare https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/
+ * @api
+ */
+
+
+function setWithCredentials(xhrWithCredentials) {
+ withCredentials = xhrWithCredentials;
+}
+},{"./format/FormatType.js":"../../../node_modules/ol/format/FormatType.js","./functions.js":"../../../node_modules/ol/functions.js"}],"../../../node_modules/ol/source/Vector.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = exports.VectorSourceEvent = void 0;
+
+var _Collection = _interopRequireDefault(require("../Collection.js"));
+
+var _CollectionEventType = _interopRequireDefault(require("../CollectionEventType.js"));
+
+var _Event = _interopRequireDefault(require("../events/Event.js"));
+
+var _EventType = _interopRequireDefault(require("../events/EventType.js"));
+
+var _ObjectEventType = _interopRequireDefault(require("../ObjectEventType.js"));
+
+var _RBush = _interopRequireDefault(require("../structs/RBush.js"));
+
+var _Source = _interopRequireDefault(require("./Source.js"));
+
+var _State = _interopRequireDefault(require("./State.js"));
+
+var _VectorEventType = _interopRequireDefault(require("./VectorEventType.js"));
+
+var _functions = require("../functions.js");
+
+var _loadingstrategy = require("../loadingstrategy.js");
+
+var _asserts = require("../asserts.js");
+
+var _extent = require("../extent.js");
+
+var _array = require("../array.js");
+
+var _util = require("../util.js");
+
+var _obj = require("../obj.js");
+
+var _events = require("../events.js");
+
+var _featureloader = require("../featureloader.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module ol/source/Vector
+ */
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+
+/**
+ * A function that takes an {@link module:ol/extent~Extent} and a resolution as arguments, and
+ * returns an array of {@link module:ol/extent~Extent} with the extents to load. Usually this
+ * is one of the standard {@link module:ol/loadingstrategy} strategies.
+ *
+ * @typedef {function(import("../extent.js").Extent, number): Array<import("../extent.js").Extent>} LoadingStrategy
+ * @api
+ */
+
+/**
+ * @classdesc
+ * Events emitted by {@link module:ol/source/Vector} instances are instances of this
+ * type.
+ * @template {import("../geom/Geometry.js").default} Geometry
+ */
+var VectorSourceEvent =
+/** @class */
+function (_super) {
+ __extends(VectorSourceEvent, _super);
+ /**
+ * @param {string} type Type.
+ * @param {import("../Feature.js").default<Geometry>=} opt_feature Feature.
+ */
+
+
+ function VectorSourceEvent(type, opt_feature) {
+ var _this = _super.call(this, type) || this;
+ /**
+ * The feature being added or removed.
+ * @type {import("../Feature.js").default<Geometry>|undefined}
+ * @api
+ */
+
+
+ _this.feature = opt_feature;
+ return _this;
+ }
+
+ return VectorSourceEvent;
+}(_Event.default);
+
+exports.VectorSourceEvent = VectorSourceEvent;
+
+/**
+ * @typedef {Object} Options
+ * @property {import("./Source.js").AttributionLike} [attributions] Attributions.
+ * @property {Array<import("../Feature.js").default>|Collection<import("../Feature.js").default>} [features]
+ * Features. If provided as {@link module:ol/Collection}, the features in the source
+ * and the collection will stay in sync.
+ * @property {import("../format/Feature.js").default} [format] The feature format used by the XHR
+ * feature loader when `url` is set. Required if `url` is set, otherwise ignored.
+ * @property {import("../featureloader.js").FeatureLoader} [loader]
+ * The loader function used to load features, from a remote source for example.
+ * If this is not set and `url` is set, the source will create and use an XHR
+ * feature loader.
+ *
+ * Example:
+ *
+ * ```js
+ * import {Vector} from 'ol/source';
+ * import {GeoJSON} from 'ol/format';
+ * import {bbox} from 'ol/loadingstrategy';
+ *
+ * var vectorSource = new Vector({
+ * format: new GeoJSON(),
+ * loader: function(extent, resolution, projection) {
+ * var proj = projection.getCode();
+ * var url = 'https://ahocevar.com/geoserver/wfs?service=WFS&' +
+ * 'version=1.1.0&request=GetFeature&typename=osm:water_areas&' +
+ * 'outputFormat=application/json&srsname=' + proj + '&' +
+ * 'bbox=' + extent.join(',') + ',' + proj;
+ * var xhr = new XMLHttpRequest();
+ * xhr.open('GET', url);
+ * var onError = function() {
+ * vectorSource.removeLoadedExtent(extent);
+ * }
+ * xhr.onerror = onError;
+ * xhr.onload = function() {
+ * if (xhr.status == 200) {
+ * vectorSource.addFeatures(
+ * vectorSource.getFormat().readFeatures(xhr.responseText));
+ * } else {
+ * onError();
+ * }
+ * }
+ * xhr.send();
+ * },
+ * strategy: bbox
+ * });
+ * ```
+ * @property {boolean} [overlaps=true] This source may have overlapping geometries.
+ * Setting this to `false` (e.g. for sources with polygons that represent administrative
+ * boundaries or TopoJSON sources) allows the renderer to optimise fill and
+ * stroke operations.
+ * @property {LoadingStrategy} [strategy] The loading strategy to use.
+ * By default an {@link module:ol/loadingstrategy~all}
+ * strategy is used, a one-off strategy which loads all features at once.
+ * @property {string|import("../featureloader.js").FeatureUrlFunction} [url]
+ * Setting this option instructs the source to load features using an XHR loader
+ * (see {@link module:ol/featureloader~xhr}). Use a `string` and an
+ * {@link module:ol/loadingstrategy~all} for a one-off download of all features from
+ * the given URL. Use a {@link module:ol/featureloader~FeatureUrlFunction} to generate the url with
+ * other loading strategies.
+ * Requires `format` to be set as well.
+ * When default XHR feature loader is provided, the features will
+ * be transformed from the data projection to the view projection
+ * during parsing. If your remote data source does not advertise its projection
+ * properly, this transformation will be incorrect. For some formats, the
+ * default projection (usually EPSG:4326) can be overridden by setting the
+ * dataProjection constructor option on the format.
+ * Note that if a source contains non-feature data, such as a GeoJSON geometry
+ * or a KML NetworkLink, these will be ignored. Use a custom loader to load these.
+ * @property {boolean} [useSpatialIndex=true]
+ * By default, an RTree is used as spatial index. When features are removed and
+ * added frequently, and the total number of features is low, setting this to
+ * `false` may improve performance.
+ *
+ * Note that
+ * {@link module:ol/source/Vector~VectorSource#getFeaturesInExtent},
+ * {@link module:ol/source/Vector~VectorSource#getClosestFeatureToCoordinate} and
+ * {@link module:ol/source/Vector~VectorSource#getExtent} cannot be used when `useSpatialIndex` is
+ * set to `false`, and {@link module:ol/source/Vector~VectorSource#forEachFeatureInExtent} will loop
+ * through all features.
+ *
+ * When set to `false`, the features will be maintained in an
+ * {@link module:ol/Collection}, which can be retrieved through
+ * {@link module:ol/source/Vector~VectorSource#getFeaturesCollection}.
+ * @property {boolean} [wrapX=true] Wrap the world horizontally. For vector editing across the
+ * -180° and 180° meridians to work properly, this should be set to `false`. The
+ * resulting geometry coordinates will then exceed the world bounds.
+ */
+
+/**
+ * @classdesc
+ * Provides a source of features for vector layers. Vector features provided
+ * by this source are suitable for editing. See {@link module:ol/source/VectorTile~VectorTile} for
+ * vector data that is optimized for rendering.
+ *
+ * @fires VectorSourceEvent
+ * @api
+ * @template {import("../geom/Geometry.js").default} Geometry
+ */
+var VectorSource =
+/** @class */
+function (_super) {
+ __extends(VectorSource, _super);
+ /**
+ * @param {Options=} opt_options Vector source options.
+ */
+
+
+ function VectorSource(opt_options) {
+ var _this = this;
+
+ var options = opt_options || {};
+ _this = _super.call(this, {
+ attributions: options.attributions,
+ projection: undefined,
+ state: _State.default.READY,
+ wrapX: options.wrapX !== undefined ? options.wrapX : true
+ }) || this;
+ /**
+ * @private
+ * @type {import("../featureloader.js").FeatureLoader}
+ */
+
+ _this.loader_ = _functions.VOID;
+ /**
+ * @private
+ * @type {import("../format/Feature.js").default|undefined}
+ */
+
+ _this.format_ = options.format;
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ _this.overlaps_ = options.overlaps === undefined ? true : options.overlaps;
+ /**
+ * @private
+ * @type {string|import("../featureloader.js").FeatureUrlFunction|undefined}
+ */
+
+ _this.url_ = options.url;
+
+ if (options.loader !== undefined) {
+ _this.loader_ = options.loader;
+ } else if (_this.url_ !== undefined) {
+ (0, _asserts.assert)(_this.format_, 7); // `format` must be set when `url` is set
+ // create a XHR feature loader for "url" and "format"
+
+ _this.loader_ = (0, _featureloader.xhr)(_this.url_,
+ /** @type {import("../format/Feature.js").default} */
+ _this.format_);
+ }
+ /**
+ * @private
+ * @type {LoadingStrategy}
+ */
+
+
+ _this.strategy_ = options.strategy !== undefined ? options.strategy : _loadingstrategy.all;
+ var useSpatialIndex = options.useSpatialIndex !== undefined ? options.useSpatialIndex : true;
+ /**
+ * @private
+ * @type {RBush<import("../Feature.js").default<Geometry>>}
+ */
+
+ _this.featuresRtree_ = useSpatialIndex ? new _RBush.default() : null;
+ /**
+ * @private
+ * @type {RBush<{extent: import("../extent.js").Extent}>}
+ */
+
+ _this.loadedExtentsRtree_ = new _RBush.default();
+ /**
+ * @private
+ * @type {!Object<string, import("../Feature.js").default<Geometry>>}
+ */
+
+ _this.nullGeometryFeatures_ = {};
+ /**
+ * A lookup of features by id (the return from feature.getId()).
+ * @private
+ * @type {!Object<string, import("../Feature.js").default<Geometry>>}
+ */
+
+ _this.idIndex_ = {};
+ /**
+ * A lookup of features by uid (using getUid(feature)).
+ * @private
+ * @type {!Object<string, import("../Feature.js").default<Geometry>>}
+ */
+
+ _this.uidIndex_ = {};
+ /**
+ * @private
+ * @type {Object<string, Array<import("../events.js").EventsKey>>}
+ */
+
+ _this.featureChangeKeys_ = {};
+ /**
+ * @private
+ * @type {Collection<import("../Feature.js").default<Geometry>>}
+ */
+
+ _this.featuresCollection_ = null;
+ var collection, features;
+
+ if (Array.isArray(options.features)) {
+ features = options.features;
+ } else if (options.features) {
+ collection = options.features;
+ features = collection.getArray();
+ }
+
+ if (!useSpatialIndex && collection === undefined) {
+ collection = new _Collection.default(features);
+ }
+
+ if (features !== undefined) {
+ _this.addFeaturesInternal(features);
+ }
+
+ if (collection !== undefined) {
+ _this.bindFeaturesCollection_(collection);
+ }
+
+ return _this;
+ }
+ /**
+ * Add a single feature to the source. If you want to add a batch of features
+ * at once, call {@link module:ol/source/Vector~VectorSource#addFeatures #addFeatures()}
+ * instead. A feature will not be added to the source if feature with
+ * the same id is already there. The reason for this behavior is to avoid
+ * feature duplication when using bbox or tile loading strategies.
+ * Note: this also applies if an {@link module:ol/Collection} is used for features,
+ * meaning that if a feature with a duplicate id is added in the collection, it will
+ * be removed from it right away.
+ * @param {import("../Feature.js").default<Geometry>} feature Feature to add.
+ * @api
+ */
+
+
+ VectorSource.prototype.addFeature = function (feature) {
+ this.addFeatureInternal(feature);
+ this.changed();
+ };
+ /**
+ * Add a feature without firing a `change` event.
+ * @param {import("../Feature.js").default<Geometry>} feature Feature.
+ * @protected
+ */
+
+
+ VectorSource.prototype.addFeatureInternal = function (feature) {
+ var featureKey = (0, _util.getUid)(feature);
+
+ if (!this.addToIndex_(featureKey, feature)) {
+ if (this.featuresCollection_) {
+ this.featuresCollection_.remove(feature);
+ }
+
+ return;
+ }
+
+ this.setupChangeEvents_(featureKey, feature);
+ var geometry = feature.getGeometry();
+
+ if (geometry) {
+ var extent = geometry.getExtent();
+
+ if (this.featuresRtree_) {
+ this.featuresRtree_.insert(extent, feature);
+ }
+ } else {
+ this.nullGeometryFeatures_[featureKey] = feature;
+ }
+
+ this.dispatchEvent(new VectorSourceEvent(_VectorEventType.default.ADDFEATURE, feature));
+ };
+ /**
+ * @param {string} featureKey Unique identifier for the feature.
+ * @param {import("../Feature.js").default<Geometry>} feature The feature.
+ * @private
+ */
+
+
+ VectorSource.prototype.setupChangeEvents_ = function (featureKey, feature) {
+ this.featureChangeKeys_[featureKey] = [(0, _events.listen)(feature, _EventType.default.CHANGE, this.handleFeatureChange_, this), (0, _events.listen)(feature, _ObjectEventType.default.PROPERTYCHANGE, this.handleFeatureChange_, this)];
+ };
+ /**
+ * @param {string} featureKey Unique identifier for the feature.
+ * @param {import("../Feature.js").default<Geometry>} feature The feature.
+ * @return {boolean} The feature is "valid", in the sense that it is also a
+ * candidate for insertion into the Rtree.
+ * @private
+ */
+
+
+ VectorSource.prototype.addToIndex_ = function (featureKey, feature) {
+ var valid = true;
+ var id = feature.getId();
+
+ if (id !== undefined) {
+ if (!(id.toString() in this.idIndex_)) {
+ this.idIndex_[id.toString()] = feature;
+ } else {
+ valid = false;
+ }
+ }
+
+ if (valid) {
+ (0, _asserts.assert)(!(featureKey in this.uidIndex_), 30); // The passed `feature` was already added to the source
+
+ this.uidIndex_[featureKey] = feature;
+ }
+
+ return valid;
+ };
+ /**
+ * Add a batch of features to the source.
+ * @param {Array<import("../Feature.js").default<Geometry>>} features Features to add.
+ * @api
+ */
+
+
+ VectorSource.prototype.addFeatures = function (features) {
+ this.addFeaturesInternal(features);
+ this.changed();
+ };
+ /**
+ * Add features without firing a `change` event.
+ * @param {Array<import("../Feature.js").default<Geometry>>} features Features.
+ * @protected
+ */
+
+
+ VectorSource.prototype.addFeaturesInternal = function (features) {
+ var extents = [];
+ var newFeatures = [];
+ var geometryFeatures = [];
+
+ for (var i = 0, length_1 = features.length; i < length_1; i++) {
+ var feature = features[i];
+ var featureKey = (0, _util.getUid)(feature);
+
+ if (this.addToIndex_(featureKey, feature)) {
+ newFeatures.push(feature);
+ }
+ }
+
+ for (var i = 0, length_2 = newFeatures.length; i < length_2; i++) {
+ var feature = newFeatures[i];
+ var featureKey = (0, _util.getUid)(feature);
+ this.setupChangeEvents_(featureKey, feature);
+ var geometry = feature.getGeometry();
+
+ if (geometry) {
+ var extent = geometry.getExtent();
+ extents.push(extent);
+ geometryFeatures.push(feature);
+ } else {
+ this.nullGeometryFeatures_[featureKey] = feature;
+ }
+ }
+
+ if (this.featuresRtree_) {
+ this.featuresRtree_.load(extents, geometryFeatures);
+ }
+
+ for (var i = 0, length_3 = newFeatures.length; i < length_3; i++) {
+ this.dispatchEvent(new VectorSourceEvent(_VectorEventType.default.ADDFEATURE, newFeatures[i]));
+ }
+ };
+ /**
+ * @param {!Collection<import("../Feature.js").default<Geometry>>} collection Collection.
+ * @private
+ */
+
+
+ VectorSource.prototype.bindFeaturesCollection_ = function (collection) {
+ var modifyingCollection = false;
+ this.addEventListener(_VectorEventType.default.ADDFEATURE,
+ /**
+ * @param {VectorSourceEvent<Geometry>} evt The vector source event
+ */
+ function (evt) {
+ if (!modifyingCollection) {
+ modifyingCollection = true;
+ collection.push(evt.feature);
+ modifyingCollection = false;
+ }
+ });
+ this.addEventListener(_VectorEventType.default.REMOVEFEATURE,
+ /**
+ * @param {VectorSourceEvent<Geometry>} evt The vector source event
+ */
+ function (evt) {
+ if (!modifyingCollection) {
+ modifyingCollection = true;
+ collection.remove(evt.feature);
+ modifyingCollection = false;
+ }
+ });
+ collection.addEventListener(_CollectionEventType.default.ADD,
+ /**
+ * @param {import("../Collection.js").CollectionEvent} evt The collection event
+ */
+ function (evt) {
+ if (!modifyingCollection) {
+ modifyingCollection = true;
+ this.addFeature(
+ /** @type {import("../Feature.js").default<Geometry>} */
+ evt.element);
+ modifyingCollection = false;
+ }
+ }.bind(this));
+ collection.addEventListener(_CollectionEventType.default.REMOVE,
+ /**
+ * @param {import("../Collection.js").CollectionEvent} evt The collection event
+ */
+ function (evt) {
+ if (!modifyingCollection) {
+ modifyingCollection = true;
+ this.removeFeature(
+ /** @type {import("../Feature.js").default<Geometry>} */
+ evt.element);
+ modifyingCollection = false;
+ }
+ }.bind(this));
+ this.featuresCollection_ = collection;
+ };
+ /**
+ * Remove all features from the source.
+ * @param {boolean=} opt_fast Skip dispatching of {@link module:ol/source/Vector.VectorSourceEvent#removefeature} events.
+ * @api
+ */
+
+
+ VectorSource.prototype.clear = function (opt_fast) {
+ if (opt_fast) {
+ for (var featureId in this.featureChangeKeys_) {
+ var keys = this.featureChangeKeys_[featureId];
+ keys.forEach(_events.unlistenByKey);
+ }
+
+ if (!this.featuresCollection_) {
+ this.featureChangeKeys_ = {};
+ this.idIndex_ = {};
+ this.uidIndex_ = {};
+ }
+ } else {
+ if (this.featuresRtree_) {
+ this.featuresRtree_.forEach(this.removeFeatureInternal.bind(this));
+
+ for (var id in this.nullGeometryFeatures_) {
+ this.removeFeatureInternal(this.nullGeometryFeatures_[id]);
+ }
+ }
+ }
+
+ if (this.featuresCollection_) {
+ this.featuresCollection_.clear();
+ }
+
+ if (this.featuresRtree_) {
+ this.featuresRtree_.clear();
+ }
+
+ this.nullGeometryFeatures_ = {};
+ var clearEvent = new VectorSourceEvent(_VectorEventType.default.CLEAR);
+ this.dispatchEvent(clearEvent);
+ this.changed();
+ };
+ /**
+ * Iterate through all features on the source, calling the provided callback
+ * with each one. If the callback returns any "truthy" value, iteration will
+ * stop and the function will return the same value.
+ * Note: this function only iterate through the feature that have a defined geometry.
+ *
+ * @param {function(import("../Feature.js").default<Geometry>): T} callback Called with each feature
+ * on the source. Return a truthy value to stop iteration.
+ * @return {T|undefined} The return value from the last call to the callback.
+ * @template T
+ * @api
+ */
+
+
+ VectorSource.prototype.forEachFeature = function (callback) {
+ if (this.featuresRtree_) {
+ return this.featuresRtree_.forEach(callback);
+ } else if (this.featuresCollection_) {
+ this.featuresCollection_.forEach(callback);
+ }
+ };
+ /**
+ * Iterate through all features whose geometries contain the provided
+ * coordinate, calling the callback with each feature. If the callback returns
+ * a "truthy" value, iteration will stop and the function will return the same
+ * value.
+ *
+ * @param {import("../coordinate.js").Coordinate} coordinate Coordinate.
+ * @param {function(import("../Feature.js").default<Geometry>): T} callback Called with each feature
+ * whose goemetry contains the provided coordinate.
+ * @return {T|undefined} The return value from the last call to the callback.
+ * @template T
+ */
+
+
+ VectorSource.prototype.forEachFeatureAtCoordinateDirect = function (coordinate, callback) {
+ var extent = [coordinate[0], coordinate[1], coordinate[0], coordinate[1]];
+ return this.forEachFeatureInExtent(extent, function (feature) {
+ var geometry = feature.getGeometry();
+
+ if (geometry.intersectsCoordinate(coordinate)) {
+ return callback(feature);
+ } else {
+ return undefined;
+ }
+ });
+ };
+ /**
+ * Iterate through all features whose bounding box intersects the provided
+ * extent (note that the feature's geometry may not intersect the extent),
+ * calling the callback with each feature. If the callback returns a "truthy"
+ * value, iteration will stop and the function will return the same value.
+ *
+ * If you are interested in features whose geometry intersects an extent, call
+ * the {@link module:ol/source/Vector~VectorSource#forEachFeatureIntersectingExtent #forEachFeatureIntersectingExtent()} method instead.
+ *
+ * When `useSpatialIndex` is set to false, this method will loop through all
+ * features, equivalent to {@link module:ol/source/Vector~VectorSource#forEachFeature #forEachFeature()}.
+ *
+ * @param {import("../extent.js").Extent} extent Extent.
+ * @param {function(import("../Feature.js").default<Geometry>): T} callback Called with each feature
+ * whose bounding box intersects the provided extent.
+ * @return {T|undefined} The return value from the last call to the callback.
+ * @template T
+ * @api
+ */
+
+
+ VectorSource.prototype.forEachFeatureInExtent = function (extent, callback) {
+ if (this.featuresRtree_) {
+ return this.featuresRtree_.forEachInExtent(extent, callback);
+ } else if (this.featuresCollection_) {
+ this.featuresCollection_.forEach(callback);
+ }
+ };
+ /**
+ * Iterate through all features whose geometry intersects the provided extent,
+ * calling the callback with each feature. If the callback returns a "truthy"
+ * value, iteration will stop and the function will return the same value.
+ *
+ * If you only want to test for bounding box intersection, call the
+ * {@link module:ol/source/Vector~VectorSource#forEachFeatureInExtent #forEachFeatureInExtent()} method instead.
+ *
+ * @param {import("../extent.js").Extent} extent Extent.
+ * @param {function(import("../Feature.js").default<Geometry>): T} callback Called with each feature
+ * whose geometry intersects the provided extent.
+ * @return {T|undefined} The return value from the last call to the callback.
+ * @template T
+ * @api
+ */
+
+
+ VectorSource.prototype.forEachFeatureIntersectingExtent = function (extent, callback) {
+ return this.forEachFeatureInExtent(extent,
+ /**
+ * @param {import("../Feature.js").default<Geometry>} feature Feature.
+ * @return {T|undefined} The return value from the last call to the callback.
+ */
+ function (feature) {
+ var geometry = feature.getGeometry();
+
+ if (geometry.intersectsExtent(extent)) {
+ var result = callback(feature);
+
+ if (result) {
+ return result;
+ }
+ }
+ });
+ };
+ /**
+ * Get the features collection associated with this source. Will be `null`
+ * unless the source was configured with `useSpatialIndex` set to `false`, or
+ * with an {@link module:ol/Collection} as `features`.
+ * @return {Collection<import("../Feature.js").default<Geometry>>} The collection of features.
+ * @api
+ */
+
+
+ VectorSource.prototype.getFeaturesCollection = function () {
+ return this.featuresCollection_;
+ };
+ /**
+ * Get all features on the source in random order.
+ * @return {Array<import("../Feature.js").default<Geometry>>} Features.
+ * @api
+ */
+
+
+ VectorSource.prototype.getFeatures = function () {
+ var features;
+
+ if (this.featuresCollection_) {
+ features = this.featuresCollection_.getArray();
+ } else if (this.featuresRtree_) {
+ features = this.featuresRtree_.getAll();
+
+ if (!(0, _obj.isEmpty)(this.nullGeometryFeatures_)) {
+ (0, _array.extend)(features, (0, _obj.getValues)(this.nullGeometryFeatures_));
+ }
+ }
+
+ return (
+ /** @type {Array<import("../Feature.js").default<Geometry>>} */
+ features
+ );
+ };
+ /**
+ * Get all features whose geometry intersects the provided coordinate.
+ * @param {import("../coordinate.js").Coordinate} coordinate Coordinate.
+ * @return {Array<import("../Feature.js").default<Geometry>>} Features.
+ * @api
+ */
+
+
+ VectorSource.prototype.getFeaturesAtCoordinate = function (coordinate) {
+ var features = [];
+ this.forEachFeatureAtCoordinateDirect(coordinate, function (feature) {
+ features.push(feature);
+ });
+ return features;
+ };
+ /**
+ * Get all features whose bounding box intersects the provided extent. Note that this returns an array of
+ * all features intersecting the given extent in random order (so it may include
+ * features whose geometries do not intersect the extent).
+ *
+ * When `useSpatialIndex` is set to false, this method will return all
+ * features.
+ *
+ * @param {import("../extent.js").Extent} extent Extent.
+ * @return {Array<import("../Feature.js").default<Geometry>>} Features.
+ * @api
+ */
+
+
+ VectorSource.prototype.getFeaturesInExtent = function (extent) {
+ if (this.featuresRtree_) {
+ return this.featuresRtree_.getInExtent(extent);
+ } else if (this.featuresCollection_) {
+ return this.featuresCollection_.getArray();
+ } else {
+ return [];
+ }
+ };
+ /**
+ * Get the closest feature to the provided coordinate.
+ *
+ * This method is not available when the source is configured with
+ * `useSpatialIndex` set to `false`.
+ * @param {import("../coordinate.js").Coordinate} coordinate Coordinate.
+ * @param {function(import("../Feature.js").default<Geometry>):boolean=} opt_filter Feature filter function.
+ * The filter function will receive one argument, the {@link module:ol/Feature feature}
+ * and it should return a boolean value. By default, no filtering is made.
+ * @return {import("../Feature.js").default<Geometry>} Closest feature.
+ * @api
+ */
+
+
+ VectorSource.prototype.getClosestFeatureToCoordinate = function (coordinate, opt_filter) {
+ // Find the closest feature using branch and bound. We start searching an
+ // infinite extent, and find the distance from the first feature found. This
+ // becomes the closest feature. We then compute a smaller extent which any
+ // closer feature must intersect. We continue searching with this smaller
+ // extent, trying to find a closer feature. Every time we find a closer
+ // feature, we update the extent being searched so that any even closer
+ // feature must intersect it. We continue until we run out of features.
+ var x = coordinate[0];
+ var y = coordinate[1];
+ var closestFeature = null;
+ var closestPoint = [NaN, NaN];
+ var minSquaredDistance = Infinity;
+ var extent = [-Infinity, -Infinity, Infinity, Infinity];
+ var filter = opt_filter ? opt_filter : _functions.TRUE;
+ this.featuresRtree_.forEachInExtent(extent,
+ /**
+ * @param {import("../Feature.js").default<Geometry>} feature Feature.
+ */
+ function (feature) {
+ if (filter(feature)) {
+ var geometry = feature.getGeometry();
+ var previousMinSquaredDistance = minSquaredDistance;
+ minSquaredDistance = geometry.closestPointXY(x, y, closestPoint, minSquaredDistance);
+
+ if (minSquaredDistance < previousMinSquaredDistance) {
+ closestFeature = feature; // This is sneaky. Reduce the extent that it is currently being
+ // searched while the R-Tree traversal using this same extent object
+ // is still in progress. This is safe because the new extent is
+ // strictly contained by the old extent.
+
+ var minDistance = Math.sqrt(minSquaredDistance);
+ extent[0] = x - minDistance;
+ extent[1] = y - minDistance;
+ extent[2] = x + minDistance;
+ extent[3] = y + minDistance;
+ }
+ }
+ });
+ return closestFeature;
+ };
+ /**
+ * Get the extent of the features currently in the source.
+ *
+ * This method is not available when the source is configured with
+ * `useSpatialIndex` set to `false`.
+ * @param {import("../extent.js").Extent=} opt_extent Destination extent. If provided, no new extent
+ * will be created. Instead, that extent's coordinates will be overwritten.
+ * @return {import("../extent.js").Extent} Extent.
+ * @api
+ */
+
+
+ VectorSource.prototype.getExtent = function (opt_extent) {
+ return this.featuresRtree_.getExtent(opt_extent);
+ };
+ /**
+ * Get a feature by its identifier (the value returned by feature.getId()).
+ * Note that the index treats string and numeric identifiers as the same. So
+ * `source.getFeatureById(2)` will return a feature with id `'2'` or `2`.
+ *
+ * @param {string|number} id Feature identifier.
+ * @return {import("../Feature.js").default<Geometry>} The feature (or `null` if not found).
+ * @api
+ */
+
+
+ VectorSource.prototype.getFeatureById = function (id) {
+ var feature = this.idIndex_[id.toString()];
+ return feature !== undefined ? feature : null;
+ };
+ /**
+ * Get a feature by its internal unique identifier (using `getUid`).
+ *
+ * @param {string} uid Feature identifier.
+ * @return {import("../Feature.js").default<Geometry>} The feature (or `null` if not found).
+ */
+
+
+ VectorSource.prototype.getFeatureByUid = function (uid) {
+ var feature = this.uidIndex_[uid];
+ return feature !== undefined ? feature : null;
+ };
+ /**
+ * Get the format associated with this source.
+ *
+ * @return {import("../format/Feature.js").default|undefined} The feature format.
+ * @api
+ */
+
+
+ VectorSource.prototype.getFormat = function () {
+ return this.format_;
+ };
+ /**
+ * @return {boolean} The source can have overlapping geometries.
+ */
+
+
+ VectorSource.prototype.getOverlaps = function () {
+ return this.overlaps_;
+ };
+ /**
+ * Get the url associated with this source.
+ *
+ * @return {string|import("../featureloader.js").FeatureUrlFunction|undefined} The url.
+ * @api
+ */
+
+
+ VectorSource.prototype.getUrl = function () {
+ return this.url_;
+ };
+ /**
+ * @param {Event} event Event.
+ * @private
+ */
+
+
+ VectorSource.prototype.handleFeatureChange_ = function (event) {
+ var feature =
+ /** @type {import("../Feature.js").default<Geometry>} */
+ event.target;
+ var featureKey = (0, _util.getUid)(feature);
+ var geometry = feature.getGeometry();
+
+ if (!geometry) {
+ if (!(featureKey in this.nullGeometryFeatures_)) {
+ if (this.featuresRtree_) {
+ this.featuresRtree_.remove(feature);
+ }
+
+ this.nullGeometryFeatures_[featureKey] = feature;
+ }
+ } else {
+ var extent = geometry.getExtent();
+
+ if (featureKey in this.nullGeometryFeatures_) {
+ delete this.nullGeometryFeatures_[featureKey];
+
+ if (this.featuresRtree_) {
+ this.featuresRtree_.insert(extent, feature);
+ }
+ } else {
+ if (this.featuresRtree_) {
+ this.featuresRtree_.update(extent, feature);
+ }
+ }
+ }
+
+ var id = feature.getId();
+
+ if (id !== undefined) {
+ var sid = id.toString();
+
+ if (this.idIndex_[sid] !== feature) {
+ this.removeFromIdIndex_(feature);
+ this.idIndex_[sid] = feature;
+ }
+ } else {
+ this.removeFromIdIndex_(feature);
+ this.uidIndex_[featureKey] = feature;
+ }
+
+ this.changed();
+ this.dispatchEvent(new VectorSourceEvent(_VectorEventType.default.CHANGEFEATURE, feature));
+ };
+ /**
+ * Returns true if the feature is contained within the source.
+ * @param {import("../Feature.js").default<Geometry>} feature Feature.
+ * @return {boolean} Has feature.
+ * @api
+ */
+
+
+ VectorSource.prototype.hasFeature = function (feature) {
+ var id = feature.getId();
+
+ if (id !== undefined) {
+ return id in this.idIndex_;
+ } else {
+ return (0, _util.getUid)(feature) in this.uidIndex_;
+ }
+ };
+ /**
+ * @return {boolean} Is empty.
+ */
+
+
+ VectorSource.prototype.isEmpty = function () {
+ return this.featuresRtree_.isEmpty() && (0, _obj.isEmpty)(this.nullGeometryFeatures_);
+ };
+ /**
+ * @param {import("../extent.js").Extent} extent Extent.
+ * @param {number} resolution Resolution.
+ * @param {import("../proj/Projection.js").default} projection Projection.
+ */
+
+
+ VectorSource.prototype.loadFeatures = function (extent, resolution, projection) {
+ var loadedExtentsRtree = this.loadedExtentsRtree_;
+ var extentsToLoad = this.strategy_(extent, resolution);
+ this.loading = false;
+
+ var _loop_1 = function (i, ii) {
+ var extentToLoad = extentsToLoad[i];
+ var alreadyLoaded = loadedExtentsRtree.forEachInExtent(extentToLoad,
+ /**
+ * @param {{extent: import("../extent.js").Extent}} object Object.
+ * @return {boolean} Contains.
+ */
+ function (object) {
+ return (0, _extent.containsExtent)(object.extent, extentToLoad);
+ });
+
+ if (!alreadyLoaded) {
+ this_1.loader_.call(this_1, extentToLoad, resolution, projection);
+ loadedExtentsRtree.insert(extentToLoad, {
+ extent: extentToLoad.slice()
+ });
+ this_1.loading = this_1.loader_ !== _functions.VOID;
+ }
+ };
+
+ var this_1 = this;
+
+ for (var i = 0, ii = extentsToLoad.length; i < ii; ++i) {
+ _loop_1(i, ii);
+ }
+ };
+
+ VectorSource.prototype.refresh = function () {
+ this.clear(true);
+ this.loadedExtentsRtree_.clear();
+
+ _super.prototype.refresh.call(this);
+ };
+ /**
+ * Remove an extent from the list of loaded extents.
+ * @param {import("../extent.js").Extent} extent Extent.
+ * @api
+ */
+
+
+ VectorSource.prototype.removeLoadedExtent = function (extent) {
+ var loadedExtentsRtree = this.loadedExtentsRtree_;
+ var obj;
+ loadedExtentsRtree.forEachInExtent(extent, function (object) {
+ if ((0, _extent.equals)(object.extent, extent)) {
+ obj = object;
+ return true;
+ }
+ });
+
+ if (obj) {
+ loadedExtentsRtree.remove(obj);
+ }
+ };
+ /**
+ * Remove a single feature from the source. If you want to remove all features
+ * at once, use the {@link module:ol/source/Vector~VectorSource#clear #clear()} method
+ * instead.
+ * @param {import("../Feature.js").default<Geometry>} feature Feature to remove.
+ * @api
+ */
+
+
+ VectorSource.prototype.removeFeature = function (feature) {
+ var featureKey = (0, _util.getUid)(feature);
+
+ if (featureKey in this.nullGeometryFeatures_) {
+ delete this.nullGeometryFeatures_[featureKey];
+ } else {
+ if (this.featuresRtree_) {
+ this.featuresRtree_.remove(feature);
+ }
+ }
+
+ this.removeFeatureInternal(feature);
+ this.changed();
+ };
+ /**
+ * Remove feature without firing a `change` event.
+ * @param {import("../Feature.js").default<Geometry>} feature Feature.
+ * @protected
+ */
+
+
+ VectorSource.prototype.removeFeatureInternal = function (feature) {
+ var featureKey = (0, _util.getUid)(feature);
+ this.featureChangeKeys_[featureKey].forEach(_events.unlistenByKey);
+ delete this.featureChangeKeys_[featureKey];
+ var id = feature.getId();
+
+ if (id !== undefined) {
+ delete this.idIndex_[id.toString()];
+ }
+
+ delete this.uidIndex_[featureKey];
+ this.dispatchEvent(new VectorSourceEvent(_VectorEventType.default.REMOVEFEATURE, feature));
+ };
+ /**
+ * Remove a feature from the id index. Called internally when the feature id
+ * may have changed.
+ * @param {import("../Feature.js").default<Geometry>} feature The feature.
+ * @return {boolean} Removed the feature from the index.
+ * @private
+ */
+
+
+ VectorSource.prototype.removeFromIdIndex_ = function (feature) {
+ var removed = false;
+
+ for (var id in this.idIndex_) {
+ if (this.idIndex_[id] === feature) {
+ delete this.idIndex_[id];
+ removed = true;
+ break;
+ }
+ }
+
+ return removed;
+ };
+ /**
+ * Set the new loader of the source. The next render cycle will use the
+ * new loader.
+ * @param {import("../featureloader.js").FeatureLoader} loader The loader to set.
+ * @api
+ */
+
+
+ VectorSource.prototype.setLoader = function (loader) {
+ this.loader_ = loader;
+ };
+ /**
+ * Points the source to a new url. The next render cycle will use the new url.
+ * @param {string|import("../featureloader.js").FeatureUrlFunction} url Url.
+ * @api
+ */
+
+
+ VectorSource.prototype.setUrl = function (url) {
+ (0, _asserts.assert)(this.format_, 7); // `format` must be set when `url` is set
+
+ this.setLoader((0, _featureloader.xhr)(url, this.format_));
+ };
+
+ return VectorSource;
+}(_Source.default);
+
+var _default = VectorSource;
+exports.default = _default;
+},{"../Collection.js":"../../../node_modules/ol/Collection.js","../CollectionEventType.js":"../../../node_modules/ol/CollectionEventType.js","../events/Event.js":"../../../node_modules/ol/events/Event.js","../events/EventType.js":"../../../node_modules/ol/events/EventType.js","../ObjectEventType.js":"../../../node_modules/ol/ObjectEventType.js","../structs/RBush.js":"../../../node_modules/ol/structs/RBush.js","./Source.js":"../../../node_modules/ol/source/Source.js","./State.js":"../../../node_modules/ol/source/State.js","./VectorEventType.js":"../../../node_modules/ol/source/VectorEventType.js","../functions.js":"../../../node_modules/ol/functions.js","../loadingstrategy.js":"../../../node_modules/ol/loadingstrategy.js","../asserts.js":"../../../node_modules/ol/asserts.js","../extent.js":"../../../node_modules/ol/extent.js","../array.js":"../../../node_modules/ol/array.js","../util.js":"../../../node_modules/ol/util.js","../obj.js":"../../../node_modules/ol/obj.js","../events.js":"../../../node_modules/ol/events.js","../featureloader.js":"../../../node_modules/ol/featureloader.js"}],"../../../node_modules/ol/render.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.toContext = toContext;
+exports.getVectorContext = getVectorContext;
+exports.getRenderPixel = getRenderPixel;
+exports.renderDeclutterItems = renderDeclutterItems;
+
+var _Immediate = _interopRequireDefault(require("./render/canvas/Immediate.js"));
+
+var _has = require("./has.js");
+
+var _transform = require("./transform.js");
+
+var _vector = require("./renderer/vector.js");
+
+var _proj = require("./proj.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module ol/render
+ */
+
+/**
+ * @typedef {Object} State
+ * @property {CanvasRenderingContext2D} context Canvas context that the layer is being rendered to.
+ * @property {import("./Feature.js").FeatureLike} feature
+ * @property {import("./geom/SimpleGeometry.js").default} geometry
+ * @property {number} pixelRatio Pixel ratio used by the layer renderer.
+ * @property {number} resolution Resolution that the render batch was created and optimized for.
+ * This is not the view's resolution that is being rendered.
+ * @property {number} rotation Rotation of the rendered layer in radians.
+ */
+
+/**
+ * A function to be used when sorting features before rendering.
+ * It takes two instances of {@link module:ol/Feature} or
+ * {@link module:ol/render/Feature} and returns a `{number}`.
+ *
+ * @typedef {function(import("./Feature.js").FeatureLike, import("./Feature.js").FeatureLike):number} OrderFunction
+ */
+
+/**
+ * @typedef {Object} ToContextOptions
+ * @property {import("./size.js").Size} [size] Desired size of the canvas in css
+ * pixels. When provided, both canvas and css size will be set according to the
+ * `pixelRatio`. If not provided, the current canvas and css sizes will not be
+ * altered.
+ * @property {number} [pixelRatio=window.devicePixelRatio] Pixel ratio (canvas
+ * pixel to css pixel ratio) for the canvas.
+ */
+
+/**
+ * Binds a Canvas Immediate API to a canvas context, to allow drawing geometries
+ * to the context's canvas.
+ *
+ * The units for geometry coordinates are css pixels relative to the top left
+ * corner of the canvas element.
+ * ```js
+ * import {toContext} from 'ol/render';
+ * import Fill from 'ol/style/Fill';
+ * import Polygon from 'ol/geom/Polygon';
+ *
+ * var canvas = document.createElement('canvas');
+ * var render = toContext(canvas.getContext('2d'),
+ * { size: [100, 100] });
+ * render.setFillStrokeStyle(new Fill({ color: blue }));
+ * render.drawPolygon(
+ * new Polygon([[[0, 0], [100, 100], [100, 0], [0, 0]]]));
+ * ```
+ *
+ * @param {CanvasRenderingContext2D} context Canvas context.
+ * @param {ToContextOptions=} opt_options Options.
+ * @return {CanvasImmediateRenderer} Canvas Immediate.
+ * @api
+ */
+function toContext(context, opt_options) {
+ var canvas = context.canvas;
+ var options = opt_options ? opt_options : {};
+ var pixelRatio = options.pixelRatio || _has.DEVICE_PIXEL_RATIO;
+ var size = options.size;
+
+ if (size) {
+ canvas.width = size[0] * pixelRatio;
+ canvas.height = size[1] * pixelRatio;
+ canvas.style.width = size[0] + 'px';
+ canvas.style.height = size[1] + 'px';
+ }
+
+ var extent = [0, 0, canvas.width, canvas.height];
+ var transform = (0, _transform.scale)((0, _transform.create)(), pixelRatio, pixelRatio);
+ return new _Immediate.default(context, pixelRatio, extent, transform, 0);
+}
+/**
+ * Gets a vector context for drawing to the event's canvas.
+ * @param {import("./render/Event.js").default} event Render event.
+ * @returns {CanvasImmediateRenderer} Vector context.
+ * @api
+ */
+
+
+function getVectorContext(event) {
+ var frameState = event.frameState;
+ var transform = (0, _transform.multiply)(event.inversePixelTransform.slice(), frameState.coordinateToPixelTransform);
+ var squaredTolerance = (0, _vector.getSquaredTolerance)(frameState.viewState.resolution, frameState.pixelRatio);
+ var userTransform;
+ var userProjection = (0, _proj.getUserProjection)();
+
+ if (userProjection) {
+ userTransform = (0, _proj.getTransformFromProjections)(userProjection, frameState.viewState.projection);
+ }
+
+ return new _Immediate.default(event.context, frameState.pixelRatio, frameState.extent, transform, frameState.viewState.rotation, squaredTolerance, userTransform);
+}
+/**
+ * Gets the pixel of the event's canvas context from the map viewport's CSS pixel.
+ * @param {import("./render/Event.js").default} event Render event.
+ * @param {import("./pixel.js").Pixel} pixel CSS pixel relative to the top-left
+ * corner of the map viewport.
+ * @returns {import("./pixel.js").Pixel} Pixel on the event's canvas context.
+ * @api
+ */
+
+
+function getRenderPixel(event, pixel) {
+ var result = pixel.slice(0);
+ (0, _transform.apply)(event.inversePixelTransform.slice(), result);
+ return result;
+}
+/**
+ * @param {import("./PluggableMap.js").FrameState} frameState Frame state.
+ * @param {?} declutterTree Declutter tree.
+ * @returns {?} Declutter tree.
+ */
+
+
+function renderDeclutterItems(frameState, declutterTree) {
+ if (declutterTree) {
+ declutterTree.clear();
+ }
+
+ var items = frameState.declutterItems;
+
+ for (var z = items.length - 1; z >= 0; --z) {
+ var item = items[z];
+ var zIndexItems = item.items;
+
+ for (var i = 0, ii = zIndexItems.length; i < ii; i += 3) {
+ declutterTree = zIndexItems[i].renderDeclutter(zIndexItems[i + 1], zIndexItems[i + 2], item.opacity, declutterTree);
+ }
+ }
+
+ items.length = 0;
+ return declutterTree;
+}
+},{"./render/canvas/Immediate.js":"../../../node_modules/ol/render/canvas/Immediate.js","./has.js":"../../../node_modules/ol/has.js","./transform.js":"../../../node_modules/ol/transform.js","./renderer/vector.js":"../../../node_modules/ol/renderer/vector.js","./proj.js":"../../../node_modules/ol/proj.js"}],"../../../node_modules/ol/geom/flat/geodesic.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.greatCircleArc = greatCircleArc;
+exports.meridian = meridian;
+exports.parallel = parallel;
+
+var _proj = require("../../proj.js");
+
+var _math = require("../../math.js");
+
+/**
+ * @module ol/geom/flat/geodesic
+ */
+
+/**
+ * @param {function(number): import("../../coordinate.js").Coordinate} interpolate Interpolate function.
+ * @param {import("../../proj.js").TransformFunction} transform Transform from longitude/latitude to
+ * projected coordinates.
+ * @param {number} squaredTolerance Squared tolerance.
+ * @return {Array<number>} Flat coordinates.
+ */
+function line(interpolate, transform, squaredTolerance) {
+ // FIXME reduce garbage generation
+ // FIXME optimize stack operations
+
+ /** @type {Array<number>} */
+ var flatCoordinates = [];
+ var geoA = interpolate(0);
+ var geoB = interpolate(1);
+ var a = transform(geoA);
+ var b = transform(geoB);
+ /** @type {Array<import("../../coordinate.js").Coordinate>} */
+
+ var geoStack = [geoB, geoA];
+ /** @type {Array<import("../../coordinate.js").Coordinate>} */
+
+ var stack = [b, a];
+ /** @type {Array<number>} */
+
+ var fractionStack = [1, 0];
+ /** @type {!Object<string, boolean>} */
+
+ var fractions = {};
+ var maxIterations = 1e5;
+ var geoM, m, fracA, fracB, fracM, key;
+
+ while (--maxIterations > 0 && fractionStack.length > 0) {
+ // Pop the a coordinate off the stack
+ fracA = fractionStack.pop();
+ geoA = geoStack.pop();
+ a = stack.pop(); // Add the a coordinate if it has not been added yet
+
+ key = fracA.toString();
+
+ if (!(key in fractions)) {
+ flatCoordinates.push(a[0], a[1]);
+ fractions[key] = true;
+ } // Pop the b coordinate off the stack
+
+
+ fracB = fractionStack.pop();
+ geoB = geoStack.pop();
+ b = stack.pop(); // Find the m point between the a and b coordinates
+
+ fracM = (fracA + fracB) / 2;
+ geoM = interpolate(fracM);
+ m = transform(geoM);
+
+ if ((0, _math.squaredSegmentDistance)(m[0], m[1], a[0], a[1], b[0], b[1]) < squaredTolerance) {
+ // If the m point is sufficiently close to the straight line, then we
+ // discard it. Just use the b coordinate and move on to the next line
+ // segment.
+ flatCoordinates.push(b[0], b[1]);
+ key = fracB.toString();
+ fractions[key] = true;
+ } else {
+ // Otherwise, we need to subdivide the current line segment. Split it
+ // into two and push the two line segments onto the stack.
+ fractionStack.push(fracB, fracM, fracM, fracA);
+ stack.push(b, m, m, a);
+ geoStack.push(geoB, geoM, geoM, geoA);
+ }
+ }
+
+ return flatCoordinates;
+}
+/**
+ * Generate a great-circle arcs between two lat/lon points.
+ * @param {number} lon1 Longitude 1 in degrees.
+ * @param {number} lat1 Latitude 1 in degrees.
+ * @param {number} lon2 Longitude 2 in degrees.
+ * @param {number} lat2 Latitude 2 in degrees.
+ * @param {import("../../proj/Projection.js").default} projection Projection.
+ * @param {number} squaredTolerance Squared tolerance.
+ * @return {Array<number>} Flat coordinates.
+ */
+
+
+function greatCircleArc(lon1, lat1, lon2, lat2, projection, squaredTolerance) {
+ var geoProjection = (0, _proj.get)('EPSG:4326');
+ var cosLat1 = Math.cos((0, _math.toRadians)(lat1));
+ var sinLat1 = Math.sin((0, _math.toRadians)(lat1));
+ var cosLat2 = Math.cos((0, _math.toRadians)(lat2));
+ var sinLat2 = Math.sin((0, _math.toRadians)(lat2));
+ var cosDeltaLon = Math.cos((0, _math.toRadians)(lon2 - lon1));
+ var sinDeltaLon = Math.sin((0, _math.toRadians)(lon2 - lon1));
+ var d = sinLat1 * sinLat2 + cosLat1 * cosLat2 * cosDeltaLon;
+ return line(
+ /**
+ * @param {number} frac Fraction.
+ * @return {import("../../coordinate.js").Coordinate} Coordinate.
+ */
+ function (frac) {
+ if (1 <= d) {
+ return [lon2, lat2];
+ }
+
+ var D = frac * Math.acos(d);
+ var cosD = Math.cos(D);
+ var sinD = Math.sin(D);
+ var y = sinDeltaLon * cosLat2;
+ var x = cosLat1 * sinLat2 - sinLat1 * cosLat2 * cosDeltaLon;
+ var theta = Math.atan2(y, x);
+ var lat = Math.asin(sinLat1 * cosD + cosLat1 * sinD * Math.cos(theta));
+ var lon = (0, _math.toRadians)(lon1) + Math.atan2(Math.sin(theta) * sinD * cosLat1, cosD - sinLat1 * Math.sin(lat));
+ return [(0, _math.toDegrees)(lon), (0, _math.toDegrees)(lat)];
+ }, (0, _proj.getTransform)(geoProjection, projection), squaredTolerance);
+}
+/**
+ * Generate a meridian (line at constant longitude).
+ * @param {number} lon Longitude.
+ * @param {number} lat1 Latitude 1.
+ * @param {number} lat2 Latitude 2.
+ * @param {import("../../proj/Projection.js").default} projection Projection.
+ * @param {number} squaredTolerance Squared tolerance.
+ * @return {Array<number>} Flat coordinates.
+ */
+
+
+function meridian(lon, lat1, lat2, projection, squaredTolerance) {
+ var epsg4326Projection = (0, _proj.get)('EPSG:4326');
+ return line(
+ /**
+ * @param {number} frac Fraction.
+ * @return {import("../../coordinate.js").Coordinate} Coordinate.
+ */
+ function (frac) {
+ return [lon, lat1 + (lat2 - lat1) * frac];
+ }, (0, _proj.getTransform)(epsg4326Projection, projection), squaredTolerance);
+}
+/**
+ * Generate a parallel (line at constant latitude).
+ * @param {number} lat Latitude.
+ * @param {number} lon1 Longitude 1.
+ * @param {number} lon2 Longitude 2.
+ * @param {import("../../proj/Projection.js").default} projection Projection.
+ * @param {number} squaredTolerance Squared tolerance.
+ * @return {Array<number>} Flat coordinates.
+ */
+
+
+function parallel(lat, lon1, lon2, projection, squaredTolerance) {
+ var epsg4326Projection = (0, _proj.get)('EPSG:4326');
+ return line(
+ /**
+ * @param {number} frac Fraction.
+ * @return {import("../../coordinate.js").Coordinate} Coordinate.
+ */
+ function (frac) {
+ return [lon1 + (lon2 - lon1) * frac, lat];
+ }, (0, _proj.getTransform)(epsg4326Projection, projection), squaredTolerance);
+}
+},{"../../proj.js":"../../../node_modules/ol/proj.js","../../math.js":"../../../node_modules/ol/math.js"}],"../../../node_modules/ol/layer/Graticule.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Collection = _interopRequireDefault(require("../Collection.js"));
+
+var _EventType = _interopRequireDefault(require("../render/EventType.js"));
+
+var _Feature = _interopRequireDefault(require("../Feature.js"));
+
+var _Fill = _interopRequireDefault(require("../style/Fill.js"));
+
+var _GeometryLayout = _interopRequireDefault(require("../geom/GeometryLayout.js"));
+
+var _LineString = _interopRequireDefault(require("../geom/LineString.js"));
+
+var _Point = _interopRequireDefault(require("../geom/Point.js"));
+
+var _Stroke = _interopRequireDefault(require("../style/Stroke.js"));
+
+var _Style = _interopRequireDefault(require("../style/Style.js"));
+
+var _Text = _interopRequireDefault(require("../style/Text.js"));
+
+var _Vector = _interopRequireDefault(require("./Vector.js"));
+
+var _Vector2 = _interopRequireDefault(require("../source/Vector.js"));
+
+var _extent = require("../extent.js");
+
+var _obj = require("../obj.js");
+
+var _math = require("../math.js");
+
+var _coordinate = require("../coordinate.js");
+
+var _proj = require("../proj.js");
+
+var _render = require("../render.js");
+
+var _geodesic = require("../geom/flat/geodesic.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/layer/Graticule
+ */
+
+
+/**
+ * @type {Stroke}
+ * @private
+ * @const
+ */
+var DEFAULT_STROKE_STYLE = new _Stroke.default({
+ color: 'rgba(0,0,0,0.2)'
+});
+/**
+ * @type {Array<number>}
+ * @private
+ */
+
+var INTERVALS = [90, 45, 30, 20, 10, 5, 2, 1, 0.5, 0.2, 0.1, 0.05, 0.01, 0.005, 0.002, 0.001];
+/**
+ * @typedef {Object} GraticuleLabelDataType
+ * @property {Point} geom
+ * @property {string} text
+ */
+
+/**
+ * @typedef {Object} Options
+ * @property {string} [className='ol-layer'] A CSS class name to set to the layer element.
+ * @property {number} [opacity=1] Opacity (0, 1).
+ * @property {boolean} [visible=true] Visibility.
+ * @property {import("../extent.js").Extent} [extent] The bounding extent for layer rendering. The layer will not be
+ * rendered outside of this extent.
+ * @property {number} [zIndex] The z-index for layer rendering. At rendering time, the layers
+ * will be ordered, first by Z-index and then by position. When `undefined`, a `zIndex` of 0 is assumed
+ * for layers that are added to the map's `layers` collection, or `Infinity` when the layer's `setMap()`
+ * method was used.
+ * @property {number} [minResolution] The minimum resolution (inclusive) at which this layer will be
+ * visible.
+ * @property {number} [maxResolution] The maximum resolution (exclusive) below which this layer will
+ * be visible.
+ * @property {number} [minZoom] The minimum view zoom level (exclusive) above which this layer will be
+ * visible.
+ * @property {number} [maxZoom] The maximum view zoom level (inclusive) at which this layer will
+ * be visible.
+ * @property {number} [maxLines=100] The maximum number of meridians and
+ * parallels from the center of the map. The default value of 100 means that at
+ * most 200 meridians and 200 parallels will be displayed. The default value is
+ * appropriate for conformal projections like Spherical Mercator. If you
+ * increase the value, more lines will be drawn and the drawing performance will
+ * decrease.
+ * @property {Stroke} [strokeStyle='rgba(0,0,0,0.2)'] The
+ * stroke style to use for drawing the graticule. If not provided, a not fully
+ * opaque black will be used.
+ * @property {number} [targetSize=100] The target size of the graticule cells,
+ * in pixels.
+ * @property {boolean} [showLabels=false] Render a label with the respective
+ * latitude/longitude for each graticule line.
+ * @property {function(number):string} [lonLabelFormatter] Label formatter for
+ * longitudes. This function is called with the longitude as argument, and
+ * should return a formatted string representing the longitude. By default,
+ * labels are formatted as degrees, minutes, seconds and hemisphere.
+ * @property {function(number):string} [latLabelFormatter] Label formatter for
+ * latitudes. This function is called with the latitude as argument, and
+ * should return a formatted string representing the latitude. By default,
+ * labels are formatted as degrees, minutes, seconds and hemisphere.
+ * @property {number} [lonLabelPosition=0] Longitude label position in fractions
+ * (0..1) of view extent. 0 means at the bottom of the viewport, 1 means at the
+ * top.
+ * @property {number} [latLabelPosition=1] Latitude label position in fractions
+ * (0..1) of view extent. 0 means at the left of the viewport, 1 means at the
+ * right.
+ * @property {Text} [lonLabelStyle] Longitude label text
+ * style. If not provided, the following style will be used:
+ * ```js
+ * new Text({
+ * font: '12px Calibri,sans-serif',
+ * textBaseline: 'bottom',
+ * fill: new Fill({
+ * color: 'rgba(0,0,0,1)'
+ * }),
+ * stroke: new Stroke({
+ * color: 'rgba(255,255,255,1)',
+ * width: 3
+ * })
+ * });
+ * ```
+ * Note that the default's `textBaseline` configuration will not work well for
+ * `lonLabelPosition` configurations that position labels close to the top of
+ * the viewport.
+ * @property {Text} [latLabelStyle] Latitude label text style.
+ * If not provided, the following style will be used:
+ * ```js
+ * new Text({
+ * font: '12px Calibri,sans-serif',
+ * textAlign: 'end',
+ * fill: new Fill({
+ * color: 'rgba(0,0,0,1)'
+ * }),
+ * stroke: Stroke({
+ * color: 'rgba(255,255,255,1)',
+ * width: 3
+ * })
+ * });
+ * ```
+ * Note that the default's `textAlign` configuration will not work well for
+ * `latLabelPosition` configurations that position labels close to the left of
+ * the viewport.
+ * @property {Array<number>} [intervals=[90, 45, 30, 20, 10, 5, 2, 1, 0.5, 0.2, 0.1, 0.05, 0.01, 0.005, 0.002, 0.001]]
+ * Intervals (in degrees) for the graticule. Example to limit graticules to 30 and 10 degrees intervals:
+ * ```js
+ * [30, 10]
+ * ```
+ * @property {boolean} [wrapX=true] Whether to repeat the graticule horizontally.
+ */
+
+/**
+ * @classdesc
+ * Layer that renders a grid for a coordinate system (currently only EPSG:4326 is supported).
+ * Note that the view projection must define both extent and worldExtent.
+ *
+ * @fires import("../render/Event.js").RenderEvent
+ * @api
+ */
+
+var Graticule =
+/** @class */
+function (_super) {
+ __extends(Graticule, _super);
+ /**
+ * @param {Options=} opt_options Options.
+ */
+
+
+ function Graticule(opt_options) {
+ var _this = this;
+
+ var options = opt_options ? opt_options : {};
+ var baseOptions = (0, _obj.assign)({
+ updateWhileAnimating: true,
+ updateWhileInteracting: true,
+ renderBuffer: 0
+ }, options);
+ delete baseOptions.maxLines;
+ delete baseOptions.strokeStyle;
+ delete baseOptions.targetSize;
+ delete baseOptions.showLabels;
+ delete baseOptions.lonLabelFormatter;
+ delete baseOptions.latLabelFormatter;
+ delete baseOptions.lonLabelPosition;
+ delete baseOptions.latLabelPosition;
+ delete baseOptions.lonLabelStyle;
+ delete baseOptions.latLabelStyle;
+ delete baseOptions.intervals;
+ _this = _super.call(this, baseOptions) || this;
+ /**
+ * @type {import("../proj/Projection.js").default}
+ */
+
+ _this.projection_ = null;
+ /**
+ * @type {number}
+ * @private
+ */
+
+ _this.maxLat_ = Infinity;
+ /**
+ * @type {number}
+ * @private
+ */
+
+ _this.maxLon_ = Infinity;
+ /**
+ * @type {number}
+ * @private
+ */
+
+ _this.minLat_ = -Infinity;
+ /**
+ * @type {number}
+ * @private
+ */
+
+ _this.minLon_ = -Infinity;
+ /**
+ * @type {number}
+ * @private
+ */
+
+ _this.maxX_ = Infinity;
+ /**
+ * @type {number}
+ * @private
+ */
+
+ _this.maxY_ = Infinity;
+ /**
+ * @type {number}
+ * @private
+ */
+
+ _this.minX_ = -Infinity;
+ /**
+ * @type {number}
+ * @private
+ */
+
+ _this.minY_ = -Infinity;
+ /**
+ * @type {number}
+ * @private
+ */
+
+ _this.targetSize_ = options.targetSize !== undefined ? options.targetSize : 100;
+ /**
+ * @type {number}
+ * @private
+ */
+
+ _this.maxLines_ = options.maxLines !== undefined ? options.maxLines : 100;
+ /**
+ * @type {Array<LineString>}
+ * @private
+ */
+
+ _this.meridians_ = [];
+ /**
+ * @type {Array<LineString>}
+ * @private
+ */
+
+ _this.parallels_ = [];
+ /**
+ * @type {Stroke}
+ * @private
+ */
+
+ _this.strokeStyle_ = options.strokeStyle !== undefined ? options.strokeStyle : DEFAULT_STROKE_STYLE;
+ /**
+ * @type {import("../proj.js").TransformFunction|undefined}
+ * @private
+ */
+
+ _this.fromLonLatTransform_ = undefined;
+ /**
+ * @type {import("../proj.js").TransformFunction|undefined}
+ * @private
+ */
+
+ _this.toLonLatTransform_ = undefined;
+ /**
+ * @type {import("../coordinate.js").Coordinate}
+ * @private
+ */
+
+ _this.projectionCenterLonLat_ = null;
+ /**
+ * @type {import("../coordinate.js").Coordinate}
+ * @private
+ */
+
+ _this.bottomLeft_ = null;
+ /**
+ * @type {import("../coordinate.js").Coordinate}
+ * @private
+ */
+
+ _this.bottomRight_ = null;
+ /**
+ * @type {import("../coordinate.js").Coordinate}
+ * @private
+ */
+
+ _this.topLeft_ = null;
+ /**
+ * @type {import("../coordinate.js").Coordinate}
+ * @private
+ */
+
+ _this.topRight_ = null;
+ /**
+ * @type {Array<GraticuleLabelDataType>}
+ * @private
+ */
+
+ _this.meridiansLabels_ = null;
+ /**
+ * @type {Array<GraticuleLabelDataType>}
+ * @private
+ */
+
+ _this.parallelsLabels_ = null;
+
+ if (options.showLabels) {
+ /**
+ * @type {null|function(number):string}
+ * @private
+ */
+ _this.lonLabelFormatter_ = options.lonLabelFormatter == undefined ? _coordinate.degreesToStringHDMS.bind(_this, 'EW') : options.lonLabelFormatter;
+ /**
+ * @type {function(number):string}
+ * @private
+ */
+
+ _this.latLabelFormatter_ = options.latLabelFormatter == undefined ? _coordinate.degreesToStringHDMS.bind(_this, 'NS') : options.latLabelFormatter;
+ /**
+ * Longitude label position in fractions (0..1) of view extent. 0 means
+ * bottom, 1 means top.
+ * @type {number}
+ * @private
+ */
+
+ _this.lonLabelPosition_ = options.lonLabelPosition == undefined ? 0 : options.lonLabelPosition;
+ /**
+ * Latitude Label position in fractions (0..1) of view extent. 0 means left, 1
+ * means right.
+ * @type {number}
+ * @private
+ */
+
+ _this.latLabelPosition_ = options.latLabelPosition == undefined ? 1 : options.latLabelPosition;
+ /**
+ * @type {Style}
+ * @private
+ */
+
+ _this.lonLabelStyleBase_ = new _Style.default({
+ text: options.lonLabelStyle !== undefined ? options.lonLabelStyle.clone() : new _Text.default({
+ font: '12px Calibri,sans-serif',
+ textBaseline: 'bottom',
+ fill: new _Fill.default({
+ color: 'rgba(0,0,0,1)'
+ }),
+ stroke: new _Stroke.default({
+ color: 'rgba(255,255,255,1)',
+ width: 3
+ })
+ })
+ });
+ /**
+ * @private
+ * @param {import("../Feature").default} feature Feature
+ * @return {Style} style
+ */
+
+ _this.lonLabelStyle_ = function (feature) {
+ var label = feature.get('graticule_label');
+ this.lonLabelStyleBase_.getText().setText(label);
+ return this.lonLabelStyleBase_;
+ }.bind(_this);
+ /**
+ * @type {Style}
+ * @private
+ */
+
+
+ _this.latLabelStyleBase_ = new _Style.default({
+ text: options.latLabelStyle !== undefined ? options.latLabelStyle.clone() : new _Text.default({
+ font: '12px Calibri,sans-serif',
+ textAlign: 'right',
+ fill: new _Fill.default({
+ color: 'rgba(0,0,0,1)'
+ }),
+ stroke: new _Stroke.default({
+ color: 'rgba(255,255,255,1)',
+ width: 3
+ })
+ })
+ });
+ /**
+ * @private
+ * @param {import("../Feature").default} feature Feature
+ * @return {Style} style
+ */
+
+ _this.latLabelStyle_ = function (feature) {
+ var label = feature.get('graticule_label');
+ this.latLabelStyleBase_.getText().setText(label);
+ return this.latLabelStyleBase_;
+ }.bind(_this);
+
+ _this.meridiansLabels_ = [];
+ _this.parallelsLabels_ = [];
+
+ _this.addEventListener(_EventType.default.POSTRENDER, _this.drawLabels_.bind(_this));
+ }
+ /**
+ * @type {Array<number>}
+ * @private
+ */
+
+
+ _this.intervals_ = options.intervals !== undefined ? options.intervals : INTERVALS; // use a source with a custom loader for lines & text
+
+ _this.setSource(new _Vector2.default({
+ loader: _this.loaderFunction.bind(_this),
+ strategy: _this.strategyFunction.bind(_this),
+ features: new _Collection.default(),
+ overlaps: false,
+ useSpatialIndex: false,
+ wrapX: options.wrapX
+ }));
+ /**
+ * feature pool to use when updating graticule
+ * @type {Array<Feature>}
+ * @private
+ */
+
+
+ _this.featurePool_ = [];
+ /**
+ * @type {Style}
+ * @private
+ */
+
+ _this.lineStyle_ = new _Style.default({
+ stroke: _this.strokeStyle_
+ });
+ /**
+ * @type {?import("../extent.js").Extent}
+ * @private
+ */
+
+ _this.loadedExtent_ = null;
+ /**
+ * @type {?import("../extent.js").Extent}
+ */
+
+ _this.renderedExtent_ = null;
+
+ _this.setRenderOrder(null);
+
+ return _this;
+ }
+ /**
+ * Strategy function for loading features based on the view's extent and
+ * resolution.
+ * @param {import("../extent.js").Extent} extent Extent.
+ * @param {number} resolution Resolution.
+ * @return {Array<import("../extent.js").Extent>} Extents.
+ */
+
+
+ Graticule.prototype.strategyFunction = function (extent, resolution) {
+ // extents may be passed in different worlds, to avoid endless loop we use only one
+ var realWorldExtent = extent.slice();
+
+ if (this.projection_ && this.getSource().getWrapX()) {
+ (0, _extent.wrapX)(realWorldExtent, this.projection_);
+ }
+
+ if (this.loadedExtent_) {
+ if ((0, _extent.approximatelyEquals)(this.loadedExtent_, realWorldExtent, resolution)) {
+ // make sure result is exactly equal to previous extent
+ realWorldExtent = this.loadedExtent_.slice();
+ } else {
+ // we should not keep track of loaded extents
+ this.getSource().removeLoadedExtent(this.loadedExtent_);
+ }
+ }
+
+ return [realWorldExtent];
+ };
+ /**
+ * Update geometries in the source based on current view
+ * @param {import("../extent").Extent} extent Extent
+ * @param {number} resolution Resolution
+ * @param {import("../proj/Projection.js").default} projection Projection
+ */
+
+
+ Graticule.prototype.loaderFunction = function (extent, resolution, projection) {
+ this.loadedExtent_ = extent;
+ var source = this.getSource(); // only consider the intersection between our own extent & the requested one
+
+ var layerExtent = this.getExtent() || [-Infinity, -Infinity, Infinity, Infinity];
+ var renderExtent = (0, _extent.getIntersection)(layerExtent, extent);
+
+ if (this.renderedExtent_ && (0, _extent.equals)(this.renderedExtent_, renderExtent)) {
+ return;
+ }
+
+ this.renderedExtent_ = renderExtent; // bail out if nothing to render
+
+ if ((0, _extent.isEmpty)(renderExtent)) {
+ return;
+ } // update projection info
+
+
+ var center = (0, _extent.getCenter)(renderExtent);
+ var squaredTolerance = resolution * resolution / 4;
+ var updateProjectionInfo = !this.projection_ || !(0, _proj.equivalent)(this.projection_, projection);
+
+ if (updateProjectionInfo) {
+ this.updateProjectionInfo_(projection);
+ }
+
+ this.createGraticule_(renderExtent, center, resolution, squaredTolerance); // first make sure we have enough features in the pool
+
+ var featureCount = this.meridians_.length + this.parallels_.length;
+
+ if (this.meridiansLabels_) {
+ featureCount += this.meridians_.length;
+ }
+
+ if (this.parallelsLabels_) {
+ featureCount += this.parallels_.length;
+ }
+
+ var feature;
+
+ while (featureCount > this.featurePool_.length) {
+ feature = new _Feature.default();
+ this.featurePool_.push(feature);
+ }
+
+ var featuresColl = source.getFeaturesCollection();
+ featuresColl.clear();
+ var poolIndex = 0; // add features for the lines & labels
+
+ var i, l;
+
+ for (i = 0, l = this.meridians_.length; i < l; ++i) {
+ feature = this.featurePool_[poolIndex++];
+ feature.setGeometry(this.meridians_[i]);
+ feature.setStyle(this.lineStyle_);
+ featuresColl.push(feature);
+ }
+
+ for (i = 0, l = this.parallels_.length; i < l; ++i) {
+ feature = this.featurePool_[poolIndex++];
+ feature.setGeometry(this.parallels_[i]);
+ feature.setStyle(this.lineStyle_);
+ featuresColl.push(feature);
+ }
+ };
+ /**
+ * @param {number} lon Longitude.
+ * @param {number} minLat Minimal latitude.
+ * @param {number} maxLat Maximal latitude.
+ * @param {number} squaredTolerance Squared tolerance.
+ * @param {import("../extent.js").Extent} extent Extent.
+ * @param {number} index Index.
+ * @return {number} Index.
+ * @private
+ */
+
+
+ Graticule.prototype.addMeridian_ = function (lon, minLat, maxLat, squaredTolerance, extent, index) {
+ var lineString = this.getMeridian_(lon, minLat, maxLat, squaredTolerance, index);
+
+ if ((0, _extent.intersects)(lineString.getExtent(), extent)) {
+ if (this.meridiansLabels_) {
+ var text = this.lonLabelFormatter_(lon);
+
+ if (index in this.meridiansLabels_) {
+ this.meridiansLabels_[index].text = text;
+ } else {
+ this.meridiansLabels_[index] = {
+ geom: new _Point.default([]),
+ text: text
+ };
+ }
+ }
+
+ this.meridians_[index++] = lineString;
+ }
+
+ return index;
+ };
+ /**
+ * @param {number} lat Latitude.
+ * @param {number} minLon Minimal longitude.
+ * @param {number} maxLon Maximal longitude.
+ * @param {number} squaredTolerance Squared tolerance.
+ * @param {import("../extent.js").Extent} extent Extent.
+ * @param {number} index Index.
+ * @return {number} Index.
+ * @private
+ */
+
+
+ Graticule.prototype.addParallel_ = function (lat, minLon, maxLon, squaredTolerance, extent, index) {
+ var lineString = this.getParallel_(lat, minLon, maxLon, squaredTolerance, index);
+
+ if ((0, _extent.intersects)(lineString.getExtent(), extent)) {
+ if (this.parallelsLabels_) {
+ var text = this.latLabelFormatter_(lat);
+
+ if (index in this.parallelsLabels_) {
+ this.parallelsLabels_[index].text = text;
+ } else {
+ this.parallelsLabels_[index] = {
+ geom: new _Point.default([]),
+ text: text
+ };
+ }
+ }
+
+ this.parallels_[index++] = lineString;
+ }
+
+ return index;
+ };
+ /**
+ * @param {import("../render/Event.js").default} event Render event.
+ * @private
+ */
+
+
+ Graticule.prototype.drawLabels_ = function (event) {
+ var rotation = event.frameState.viewState.rotation;
+ var extent = event.frameState.extent;
+ var rotationCenter = (0, _extent.getCenter)(extent);
+ var rotationExtent = extent;
+
+ if (rotation) {
+ var width = (0, _extent.getWidth)(extent);
+ var height = (0, _extent.getHeight)(extent);
+ var cr = Math.abs(Math.cos(rotation));
+ var sr = Math.abs(Math.sin(rotation));
+ var unrotatedWidth = (sr * height - cr * width) / (sr * sr - cr * cr);
+ var unrotatedHeight = (sr * width - cr * height) / (sr * sr - cr * cr);
+ rotationExtent = [rotationCenter[0] - unrotatedWidth / 2, rotationCenter[1] - unrotatedHeight / 2, rotationCenter[0] + unrotatedWidth / 2, rotationCenter[1] + unrotatedHeight / 2];
+ }
+
+ var startWorld = 0;
+ var endWorld = 0;
+ var labelsAtStart = this.latLabelPosition_ < 0.5;
+ var projectionExtent = this.projection_.getExtent();
+ var worldWidth = (0, _extent.getWidth)(projectionExtent);
+
+ if (this.getSource().getWrapX() && this.projection_.canWrapX() && !(0, _extent.containsExtent)(projectionExtent, extent)) {
+ startWorld = Math.floor((extent[0] - projectionExtent[0]) / worldWidth);
+ endWorld = Math.ceil((extent[2] - projectionExtent[2]) / worldWidth);
+ var inverted = Math.abs(rotation) > Math.PI / 2;
+ labelsAtStart = labelsAtStart !== inverted;
+ }
+
+ var vectorContext = (0, _render.getVectorContext)(event);
+
+ for (var world = startWorld; world <= endWorld; ++world) {
+ var poolIndex = this.meridians_.length + this.parallels_.length;
+ var feature = void 0,
+ index = void 0,
+ l = void 0,
+ textPoint = void 0;
+
+ if (this.meridiansLabels_) {
+ for (index = 0, l = this.meridiansLabels_.length; index < l; ++index) {
+ var lineString = this.meridians_[index];
+
+ if (!rotation && world === 0) {
+ textPoint = this.getMeridianPoint_(lineString, extent, index);
+ } else {
+ var clone = lineString.clone();
+ clone.translate(world * worldWidth, 0);
+ clone.rotate(-rotation, rotationCenter);
+ textPoint = this.getMeridianPoint_(clone, rotationExtent, index);
+ textPoint.rotate(rotation, rotationCenter);
+ }
+
+ feature = this.featurePool_[poolIndex++];
+ feature.setGeometry(textPoint);
+ feature.set('graticule_label', this.meridiansLabels_[index].text);
+ vectorContext.drawFeature(feature, this.lonLabelStyle_(feature));
+ }
+ }
+
+ if (this.parallelsLabels_) {
+ if (world === startWorld && labelsAtStart || world === endWorld && !labelsAtStart) {
+ for (index = 0, l = this.parallels_.length; index < l; ++index) {
+ var lineString = this.parallels_[index];
+
+ if (!rotation && world === 0) {
+ textPoint = this.getParallelPoint_(lineString, extent, index);
+ } else {
+ var clone = lineString.clone();
+ clone.translate(world * worldWidth, 0);
+ clone.rotate(-rotation, rotationCenter);
+ textPoint = this.getParallelPoint_(clone, rotationExtent, index);
+ textPoint.rotate(rotation, rotationCenter);
+ }
+
+ feature = this.featurePool_[poolIndex++];
+ feature.setGeometry(textPoint);
+ feature.set('graticule_label', this.parallelsLabels_[index].text);
+ vectorContext.drawFeature(feature, this.latLabelStyle_(feature));
+ }
+ }
+ }
+ }
+ };
+ /**
+ * @param {import("../extent.js").Extent} extent Extent.
+ * @param {import("../coordinate.js").Coordinate} center Center.
+ * @param {number} resolution Resolution.
+ * @param {number} squaredTolerance Squared tolerance.
+ * @private
+ */
+
+
+ Graticule.prototype.createGraticule_ = function (extent, center, resolution, squaredTolerance) {
+ var interval = this.getInterval_(resolution);
+
+ if (interval == -1) {
+ this.meridians_.length = 0;
+ this.parallels_.length = 0;
+
+ if (this.meridiansLabels_) {
+ this.meridiansLabels_.length = 0;
+ }
+
+ if (this.parallelsLabels_) {
+ this.parallelsLabels_.length = 0;
+ }
+
+ return;
+ }
+
+ var wrapX = false;
+ var projectionExtent = this.projection_.getExtent();
+ var worldWidth = (0, _extent.getWidth)(projectionExtent);
+
+ if (this.getSource().getWrapX() && this.projection_.canWrapX() && !(0, _extent.containsExtent)(projectionExtent, extent)) {
+ if ((0, _extent.getWidth)(extent) >= worldWidth) {
+ extent[0] = projectionExtent[0];
+ extent[2] = projectionExtent[2];
+ } else {
+ wrapX = true;
+ }
+ } // Constrain the center to fit into the extent available to the graticule
+
+
+ var validCenterP = [(0, _math.clamp)(center[0], this.minX_, this.maxX_), (0, _math.clamp)(center[1], this.minY_, this.maxY_)]; // Transform the center to lon lat
+ // Some projections may have a void area at the poles
+ // so replace any NaN latitudes with the min or max value closest to a pole
+
+ var centerLonLat = this.toLonLatTransform_(validCenterP);
+
+ if (isNaN(centerLonLat[1])) {
+ centerLonLat[1] = Math.abs(this.maxLat_) >= Math.abs(this.minLat_) ? this.maxLat_ : this.minLat_;
+ }
+
+ var centerLon = (0, _math.clamp)(centerLonLat[0], this.minLon_, this.maxLon_);
+ var centerLat = (0, _math.clamp)(centerLonLat[1], this.minLat_, this.maxLat_);
+ var maxLines = this.maxLines_;
+ var cnt, idx, lat, lon; // Limit the extent to fit into the extent available to the graticule
+
+ var validExtentP = extent;
+
+ if (!wrapX) {
+ validExtentP = [(0, _math.clamp)(extent[0], this.minX_, this.maxX_), (0, _math.clamp)(extent[1], this.minY_, this.maxY_), (0, _math.clamp)(extent[2], this.minX_, this.maxX_), (0, _math.clamp)(extent[3], this.minY_, this.maxY_)];
+ } // Transform the extent to get the lon lat ranges for the edges of the extent
+
+
+ var validExtent = (0, _extent.applyTransform)(validExtentP, this.toLonLatTransform_, undefined, 8);
+ var maxLat = validExtent[3];
+ var maxLon = validExtent[2];
+ var minLat = validExtent[1];
+ var minLon = validExtent[0];
+
+ if (!wrapX) {
+ // Check if extremities of the world extent lie inside the extent
+ // (for example the pole in a polar projection)
+ // and extend the extent as appropriate
+ if ((0, _extent.containsCoordinate)(validExtentP, this.bottomLeft_)) {
+ minLon = this.minLon_;
+ minLat = this.minLat_;
+ }
+
+ if ((0, _extent.containsCoordinate)(validExtentP, this.bottomRight_)) {
+ maxLon = this.maxLon_;
+ minLat = this.minLat_;
+ }
+
+ if ((0, _extent.containsCoordinate)(validExtentP, this.topLeft_)) {
+ minLon = this.minLon_;
+ maxLat = this.maxLat_;
+ }
+
+ if ((0, _extent.containsCoordinate)(validExtentP, this.topRight_)) {
+ maxLon = this.maxLon_;
+ maxLat = this.maxLat_;
+ } // The transformed center may also extend the lon lat ranges used for rendering
+
+
+ maxLat = (0, _math.clamp)(maxLat, centerLat, this.maxLat_);
+ maxLon = (0, _math.clamp)(maxLon, centerLon, this.maxLon_);
+ minLat = (0, _math.clamp)(minLat, this.minLat_, centerLat);
+ minLon = (0, _math.clamp)(minLon, this.minLon_, centerLon);
+ } // Create meridians
+
+
+ centerLon = Math.floor(centerLon / interval) * interval;
+ lon = (0, _math.clamp)(centerLon, this.minLon_, this.maxLon_);
+ idx = this.addMeridian_(lon, minLat, maxLat, squaredTolerance, extent, 0);
+ cnt = 0;
+
+ if (wrapX) {
+ while ((lon -= interval) >= minLon && cnt++ < maxLines) {
+ idx = this.addMeridian_(lon, minLat, maxLat, squaredTolerance, extent, idx);
+ }
+ } else {
+ while (lon != this.minLon_ && cnt++ < maxLines) {
+ lon = Math.max(lon - interval, this.minLon_);
+ idx = this.addMeridian_(lon, minLat, maxLat, squaredTolerance, extent, idx);
+ }
+ }
+
+ lon = (0, _math.clamp)(centerLon, this.minLon_, this.maxLon_);
+ cnt = 0;
+
+ if (wrapX) {
+ while ((lon += interval) <= maxLon && cnt++ < maxLines) {
+ idx = this.addMeridian_(lon, minLat, maxLat, squaredTolerance, extent, idx);
+ }
+ } else {
+ while (lon != this.maxLon_ && cnt++ < maxLines) {
+ lon = Math.min(lon + interval, this.maxLon_);
+ idx = this.addMeridian_(lon, minLat, maxLat, squaredTolerance, extent, idx);
+ }
+ }
+
+ this.meridians_.length = idx;
+
+ if (this.meridiansLabels_) {
+ this.meridiansLabels_.length = idx;
+ } // Create parallels
+
+
+ centerLat = Math.floor(centerLat / interval) * interval;
+ lat = (0, _math.clamp)(centerLat, this.minLat_, this.maxLat_);
+ idx = this.addParallel_(lat, minLon, maxLon, squaredTolerance, extent, 0);
+ cnt = 0;
+
+ while (lat != this.minLat_ && cnt++ < maxLines) {
+ lat = Math.max(lat - interval, this.minLat_);
+ idx = this.addParallel_(lat, minLon, maxLon, squaredTolerance, extent, idx);
+ }
+
+ lat = (0, _math.clamp)(centerLat, this.minLat_, this.maxLat_);
+ cnt = 0;
+
+ while (lat != this.maxLat_ && cnt++ < maxLines) {
+ lat = Math.min(lat + interval, this.maxLat_);
+ idx = this.addParallel_(lat, minLon, maxLon, squaredTolerance, extent, idx);
+ }
+
+ this.parallels_.length = idx;
+
+ if (this.parallelsLabels_) {
+ this.parallelsLabels_.length = idx;
+ }
+ };
+ /**
+ * @param {number} resolution Resolution.
+ * @return {number} The interval in degrees.
+ * @private
+ */
+
+
+ Graticule.prototype.getInterval_ = function (resolution) {
+ var centerLon = this.projectionCenterLonLat_[0];
+ var centerLat = this.projectionCenterLonLat_[1];
+ var interval = -1;
+ var target = Math.pow(this.targetSize_ * resolution, 2);
+ /** @type {Array<number>} **/
+
+ var p1 = [];
+ /** @type {Array<number>} **/
+
+ var p2 = [];
+
+ for (var i = 0, ii = this.intervals_.length; i < ii; ++i) {
+ var delta = (0, _math.clamp)(this.intervals_[i] / 2, 0, 90); // Don't attempt to transform latitudes beyond the poles!
+
+ var clampedLat = (0, _math.clamp)(centerLat, -90 + delta, 90 - delta);
+ p1[0] = centerLon - delta;
+ p1[1] = clampedLat - delta;
+ p2[0] = centerLon + delta;
+ p2[1] = clampedLat + delta;
+ this.fromLonLatTransform_(p1, p1);
+ this.fromLonLatTransform_(p2, p2);
+ var dist = Math.pow(p2[0] - p1[0], 2) + Math.pow(p2[1] - p1[1], 2);
+
+ if (dist <= target) {
+ break;
+ }
+
+ interval = this.intervals_[i];
+ }
+
+ return interval;
+ };
+ /**
+ * @param {number} lon Longitude.
+ * @param {number} minLat Minimal latitude.
+ * @param {number} maxLat Maximal latitude.
+ * @param {number} squaredTolerance Squared tolerance.
+ * @return {LineString} The meridian line string.
+ * @param {number} index Index.
+ * @private
+ */
+
+
+ Graticule.prototype.getMeridian_ = function (lon, minLat, maxLat, squaredTolerance, index) {
+ var flatCoordinates = (0, _geodesic.meridian)(lon, minLat, maxLat, this.projection_, squaredTolerance);
+ var lineString = this.meridians_[index];
+
+ if (!lineString) {
+ lineString = new _LineString.default(flatCoordinates, _GeometryLayout.default.XY);
+ this.meridians_[index] = lineString;
+ } else {
+ lineString.setFlatCoordinates(_GeometryLayout.default.XY, flatCoordinates);
+ lineString.changed();
+ }
+
+ return lineString;
+ };
+ /**
+ * @param {LineString} lineString Meridian
+ * @param {import("../extent.js").Extent} extent Extent.
+ * @param {number} index Index.
+ * @return {Point} Meridian point.
+ * @private
+ */
+
+
+ Graticule.prototype.getMeridianPoint_ = function (lineString, extent, index) {
+ var flatCoordinates = lineString.getFlatCoordinates();
+ var bottom = 1;
+ var top = flatCoordinates.length - 1;
+
+ if (flatCoordinates[bottom] > flatCoordinates[top]) {
+ bottom = top;
+ top = 1;
+ }
+
+ var clampedBottom = Math.max(extent[1], flatCoordinates[bottom]);
+ var clampedTop = Math.min(extent[3], flatCoordinates[top]);
+ var lat = (0, _math.clamp)(extent[1] + Math.abs(extent[1] - extent[3]) * this.lonLabelPosition_, clampedBottom, clampedTop);
+ var coordinate0 = flatCoordinates[bottom - 1] + (flatCoordinates[top - 1] - flatCoordinates[bottom - 1]) * (lat - flatCoordinates[bottom]) / (flatCoordinates[top] - flatCoordinates[bottom]);
+ var coordinate = [coordinate0, lat];
+ var point = this.meridiansLabels_[index].geom;
+ point.setCoordinates(coordinate);
+ return point;
+ };
+ /**
+ * Get the list of meridians. Meridians are lines of equal longitude.
+ * @return {Array<LineString>} The meridians.
+ * @api
+ */
+
+
+ Graticule.prototype.getMeridians = function () {
+ return this.meridians_;
+ };
+ /**
+ * @param {number} lat Latitude.
+ * @param {number} minLon Minimal longitude.
+ * @param {number} maxLon Maximal longitude.
+ * @param {number} squaredTolerance Squared tolerance.
+ * @return {LineString} The parallel line string.
+ * @param {number} index Index.
+ * @private
+ */
+
+
+ Graticule.prototype.getParallel_ = function (lat, minLon, maxLon, squaredTolerance, index) {
+ var flatCoordinates = (0, _geodesic.parallel)(lat, minLon, maxLon, this.projection_, squaredTolerance);
+ var lineString = this.parallels_[index];
+
+ if (!lineString) {
+ lineString = new _LineString.default(flatCoordinates, _GeometryLayout.default.XY);
+ } else {
+ lineString.setFlatCoordinates(_GeometryLayout.default.XY, flatCoordinates);
+ lineString.changed();
+ }
+
+ return lineString;
+ };
+ /**
+ * @param {LineString} lineString Parallels.
+ * @param {import("../extent.js").Extent} extent Extent.
+ * @param {number} index Index.
+ * @return {Point} Parallel point.
+ * @private
+ */
+
+
+ Graticule.prototype.getParallelPoint_ = function (lineString, extent, index) {
+ var flatCoordinates = lineString.getFlatCoordinates();
+ var left = 0;
+ var right = flatCoordinates.length - 2;
+
+ if (flatCoordinates[left] > flatCoordinates[right]) {
+ left = right;
+ right = 0;
+ }
+
+ var clampedLeft = Math.max(extent[0], flatCoordinates[left]);
+ var clampedRight = Math.min(extent[2], flatCoordinates[right]);
+ var lon = (0, _math.clamp)(extent[0] + Math.abs(extent[0] - extent[2]) * this.latLabelPosition_, clampedLeft, clampedRight);
+ var coordinate1 = flatCoordinates[left + 1] + (flatCoordinates[right + 1] - flatCoordinates[left + 1]) * (lon - flatCoordinates[left]) / (flatCoordinates[right] - flatCoordinates[left]);
+ var coordinate = [lon, coordinate1];
+ var point = this.parallelsLabels_[index].geom;
+ point.setCoordinates(coordinate);
+ return point;
+ };
+ /**
+ * Get the list of parallels. Parallels are lines of equal latitude.
+ * @return {Array<LineString>} The parallels.
+ * @api
+ */
+
+
+ Graticule.prototype.getParallels = function () {
+ return this.parallels_;
+ };
+ /**
+ * @param {import("../proj/Projection.js").default} projection Projection.
+ * @private
+ */
+
+
+ Graticule.prototype.updateProjectionInfo_ = function (projection) {
+ var epsg4326Projection = (0, _proj.get)('EPSG:4326');
+ var worldExtent = projection.getWorldExtent();
+ this.maxLat_ = worldExtent[3];
+ this.maxLon_ = worldExtent[2];
+ this.minLat_ = worldExtent[1];
+ this.minLon_ = worldExtent[0]; // If the world extent crosses the dateline define a custom transform to
+ // return longitudes which wrap the dateline
+
+ var toLonLatTransform = (0, _proj.getTransform)(projection, epsg4326Projection);
+
+ if (this.minLon_ < this.maxLon_) {
+ this.toLonLatTransform_ = toLonLatTransform;
+ } else {
+ var split_1 = this.minLon_ + this.maxLon_ / 2;
+ this.maxLon_ += 360;
+
+ this.toLonLatTransform_ = function (coordinates, opt_output, opt_dimension) {
+ var dimension = opt_dimension || 2;
+ var lonLatCoordinates = toLonLatTransform(coordinates, opt_output, dimension);
+
+ for (var i = 0, l = lonLatCoordinates.length; i < l; i += dimension) {
+ if (lonLatCoordinates[i] < split_1) {
+ lonLatCoordinates[i] += 360;
+ }
+ }
+
+ return lonLatCoordinates;
+ };
+ } // Transform the extent to get the limits of the view projection extent
+ // which should be available to the graticule
+
+
+ this.fromLonLatTransform_ = (0, _proj.getTransform)(epsg4326Projection, projection);
+ var worldExtentP = (0, _extent.applyTransform)([this.minLon_, this.minLat_, this.maxLon_, this.maxLat_], this.fromLonLatTransform_, undefined, 8);
+ this.minX_ = worldExtentP[0];
+ this.maxX_ = worldExtentP[2];
+ this.minY_ = worldExtentP[1];
+ this.maxY_ = worldExtentP[3]; // Determine the view projection coordinates of the extremities of the world extent
+ // as these may lie inside a view extent (for example the pole in a polar projection)
+
+ this.bottomLeft_ = this.fromLonLatTransform_([this.minLon_, this.minLat_]);
+ this.bottomRight_ = this.fromLonLatTransform_([this.maxLon_, this.minLat_]);
+ this.topLeft_ = this.fromLonLatTransform_([this.minLon_, this.maxLat_]);
+ this.topRight_ = this.fromLonLatTransform_([this.maxLon_, this.maxLat_]); // Transform the projection center to lon lat
+ // Some projections may have a void area at the poles
+ // so replace any NaN latitudes with the min or max value closest to a pole
+
+ this.projectionCenterLonLat_ = this.toLonLatTransform_((0, _extent.getCenter)(projection.getExtent()));
+
+ if (isNaN(this.projectionCenterLonLat_[1])) {
+ this.projectionCenterLonLat_[1] = Math.abs(this.maxLat_) >= Math.abs(this.minLat_) ? this.maxLat_ : this.minLat_;
+ }
+
+ this.projection_ = projection;
+ };
+
+ return Graticule;
+}(_Vector.default);
+
+var _default = Graticule;
+exports.default = _default;
+},{"../Collection.js":"../../../node_modules/ol/Collection.js","../render/EventType.js":"../../../node_modules/ol/render/EventType.js","../Feature.js":"../../../node_modules/ol/Feature.js","../style/Fill.js":"../../../node_modules/ol/style/Fill.js","../geom/GeometryLayout.js":"../../../node_modules/ol/geom/GeometryLayout.js","../geom/LineString.js":"../../../node_modules/ol/geom/LineString.js","../geom/Point.js":"../../../node_modules/ol/geom/Point.js","../style/Stroke.js":"../../../node_modules/ol/style/Stroke.js","../style/Style.js":"../../../node_modules/ol/style/Style.js","../style/Text.js":"../../../node_modules/ol/style/Text.js","./Vector.js":"../../../node_modules/ol/layer/Vector.js","../source/Vector.js":"../../../node_modules/ol/source/Vector.js","../extent.js":"../../../node_modules/ol/extent.js","../obj.js":"../../../node_modules/ol/obj.js","../math.js":"../../../node_modules/ol/math.js","../coordinate.js":"../../../node_modules/ol/coordinate.js","../proj.js":"../../../node_modules/ol/proj.js","../render.js":"../../../node_modules/ol/render.js","../geom/flat/geodesic.js":"../../../node_modules/ol/geom/flat/geodesic.js"}],"../../../node_modules/ol/ImageCanvas.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _ImageBase = _interopRequireDefault(require("./ImageBase.js"));
+
+var _ImageState = _interopRequireDefault(require("./ImageState.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/ImageCanvas
+ */
+
+
+/**
+ * A function that is called to trigger asynchronous canvas drawing. It is
+ * called with a "done" callback that should be called when drawing is done.
+ * If any error occurs during drawing, the "done" callback should be called with
+ * that error.
+ *
+ * @typedef {function(function(Error=): void): void} Loader
+ */
+var ImageCanvas =
+/** @class */
+function (_super) {
+ __extends(ImageCanvas, _super);
+ /**
+ * @param {import("./extent.js").Extent} extent Extent.
+ * @param {number} resolution Resolution.
+ * @param {number} pixelRatio Pixel ratio.
+ * @param {HTMLCanvasElement} canvas Canvas.
+ * @param {Loader=} opt_loader Optional loader function to
+ * support asynchronous canvas drawing.
+ */
+
+
+ function ImageCanvas(extent, resolution, pixelRatio, canvas, opt_loader) {
+ var _this = this;
+
+ var state = opt_loader !== undefined ? _ImageState.default.IDLE : _ImageState.default.LOADED;
+ _this = _super.call(this, extent, resolution, pixelRatio, state) || this;
+ /**
+ * Optional canvas loader function.
+ * @type {?Loader}
+ * @private
+ */
+
+ _this.loader_ = opt_loader !== undefined ? opt_loader : null;
+ /**
+ * @private
+ * @type {HTMLCanvasElement}
+ */
+
+ _this.canvas_ = canvas;
+ /**
+ * @private
+ * @type {?Error}
+ */
+
+ _this.error_ = null;
+ return _this;
+ }
+ /**
+ * Get any error associated with asynchronous rendering.
+ * @return {?Error} Any error that occurred during rendering.
+ */
+
+
+ ImageCanvas.prototype.getError = function () {
+ return this.error_;
+ };
+ /**
+ * Handle async drawing complete.
+ * @param {Error=} err Any error during drawing.
+ * @private
+ */
+
+
+ ImageCanvas.prototype.handleLoad_ = function (err) {
+ if (err) {
+ this.error_ = err;
+ this.state = _ImageState.default.ERROR;
+ } else {
+ this.state = _ImageState.default.LOADED;
+ }
+
+ this.changed();
+ };
+ /**
+ * Load not yet loaded URI.
+ */
+
+
+ ImageCanvas.prototype.load = function () {
+ if (this.state == _ImageState.default.IDLE) {
+ this.state = _ImageState.default.LOADING;
+ this.changed();
+ this.loader_(this.handleLoad_.bind(this));
+ }
+ };
+ /**
+ * @return {HTMLCanvasElement} Canvas element.
+ */
+
+
+ ImageCanvas.prototype.getImage = function () {
+ return this.canvas_;
+ };
+
+ return ImageCanvas;
+}(_ImageBase.default);
+
+var _default = ImageCanvas;
+exports.default = _default;
+},{"./ImageBase.js":"../../../node_modules/ol/ImageBase.js","./ImageState.js":"../../../node_modules/ol/ImageState.js"}],"../../../node_modules/ol/TileState.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+/**
+ * @module ol/TileState
+ */
+
+/**
+ * @enum {number}
+ */
+var _default = {
+ IDLE: 0,
+ LOADING: 1,
+ LOADED: 2,
+
+ /**
+ * Indicates that tile loading failed
+ * @type {number}
+ */
+ ERROR: 3,
+ EMPTY: 4
+};
+exports.default = _default;
+},{}],"../../../node_modules/ol/easing.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.easeIn = easeIn;
+exports.easeOut = easeOut;
+exports.inAndOut = inAndOut;
+exports.linear = linear;
+exports.upAndDown = upAndDown;
+
+/**
+ * @module ol/easing
+ */
+
+/**
+ * Start slow and speed up.
+ * @param {number} t Input between 0 and 1.
+ * @return {number} Output between 0 and 1.
+ * @api
+ */
+function easeIn(t) {
+ return Math.pow(t, 3);
+}
+/**
+ * Start fast and slow down.
+ * @param {number} t Input between 0 and 1.
+ * @return {number} Output between 0 and 1.
+ * @api
+ */
+
+
+function easeOut(t) {
+ return 1 - easeIn(1 - t);
+}
+/**
+ * Start slow, speed up, and then slow down again.
+ * @param {number} t Input between 0 and 1.
+ * @return {number} Output between 0 and 1.
+ * @api
+ */
+
+
+function inAndOut(t) {
+ return 3 * t * t - 2 * t * t * t;
+}
+/**
+ * Maintain a constant speed over time.
+ * @param {number} t Input between 0 and 1.
+ * @return {number} Output between 0 and 1.
+ * @api
+ */
+
+
+function linear(t) {
+ return t;
+}
+/**
+ * Start slow, speed up, and at the very end slow down again. This has the
+ * same general behavior as {@link module:ol/easing~inAndOut}, but the final
+ * slowdown is delayed.
+ * @param {number} t Input between 0 and 1.
+ * @return {number} Output between 0 and 1.
+ * @api
+ */
+
+
+function upAndDown(t) {
+ if (t < 0.5) {
+ return inAndOut(2 * t);
+ } else {
+ return 1 - inAndOut(2 * (t - 0.5));
+ }
+}
+},{}],"../../../node_modules/ol/Tile.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Target = _interopRequireDefault(require("./events/Target.js"));
+
+var _EventType = _interopRequireDefault(require("./events/EventType.js"));
+
+var _TileState = _interopRequireDefault(require("./TileState.js"));
+
+var _util = require("./util.js");
+
+var _easing = require("./easing.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/Tile
+ */
+
+
+/**
+ * A function that takes an {@link module:ol/Tile} for the tile and a
+ * `{string}` for the url as arguments. The default is
+ * ```js
+ * source.setTileLoadFunction(function(tile, src) {
+ * tile.getImage().src = src;
+ * });
+ * ```
+ * For more fine grained control, the load function can use fetch or XMLHttpRequest and involve
+ * error handling:
+ *
+ * ```js
+ * import TileState from 'ol/TileState';
+ *
+ * source.setTileLoadFunction(function(tile, src) {
+ * var xhr = new XMLHttpRequest();
+ * xhr.responseType = 'blob';
+ * xhr.addEventListener('loadend', function (evt) {
+ * var data = this.response;
+ * if (data !== undefined) {
+ * tile.getImage().src = URL.createObjectURL(data);
+ * } else {
+ * tile.setState(TileState.ERROR);
+ * }
+ * });
+ * xhr.addEventListener('error', function () {
+ * tile.setState(TileState.ERROR);
+ * });
+ * xhr.open('GET', src);
+ * xhr.send();
+ * });
+ * ```
+ *
+ * @typedef {function(Tile, string): void} LoadFunction
+ * @api
+ */
+
+/**
+ * {@link module:ol/source/Tile~Tile} sources use a function of this type to get
+ * the url that provides a tile for a given tile coordinate.
+ *
+ * This function takes an {@link module:ol/tilecoord~TileCoord} for the tile
+ * coordinate, a `{number}` representing the pixel ratio and a
+ * {@link module:ol/proj/Projection} for the projection as arguments
+ * and returns a `{string}` representing the tile URL, or undefined if no tile
+ * should be requested for the passed tile coordinate.
+ *
+ * @typedef {function(import("./tilecoord.js").TileCoord, number,
+ * import("./proj/Projection.js").default): (string|undefined)} UrlFunction
+ * @api
+ */
+
+/**
+ * @typedef {Object} Options
+ * @property {number} [transition=250] A duration for tile opacity
+ * transitions in milliseconds. A duration of 0 disables the opacity transition.
+ * @api
+ */
+
+/**
+ * @classdesc
+ * Base class for tiles.
+ *
+ * @abstract
+ */
+var Tile =
+/** @class */
+function (_super) {
+ __extends(Tile, _super);
+ /**
+ * @param {import("./tilecoord.js").TileCoord} tileCoord Tile coordinate.
+ * @param {import("./TileState.js").default} state State.
+ * @param {Options=} opt_options Tile options.
+ */
+
+
+ function Tile(tileCoord, state, opt_options) {
+ var _this = _super.call(this) || this;
+
+ var options = opt_options ? opt_options : {};
+ /**
+ * @type {import("./tilecoord.js").TileCoord}
+ */
+
+ _this.tileCoord = tileCoord;
+ /**
+ * @protected
+ * @type {import("./TileState.js").default}
+ */
+
+ _this.state = state;
+ /**
+ * An "interim" tile for this tile. The interim tile may be used while this
+ * one is loading, for "smooth" transitions when changing params/dimensions
+ * on the source.
+ * @type {Tile}
+ */
+
+ _this.interimTile = null;
+ /**
+ * The tile is available at the highest possible resolution. Subclasses can
+ * set this to `false` initially. Tile load listeners will not be
+ * unregistered before this is set to `true` and a `#changed()` is called.
+ * @type {boolean}
+ */
+
+ _this.hifi = true;
+ /**
+ * A key assigned to the tile. This is used by the tile source to determine
+ * if this tile can effectively be used, or if a new tile should be created
+ * and this one be used as an interim tile for this new tile.
+ * @type {string}
+ */
+
+ _this.key = '';
+ /**
+ * The duration for the opacity transition.
+ * @type {number}
+ */
+
+ _this.transition_ = options.transition === undefined ? 250 : options.transition;
+ /**
+ * Lookup of start times for rendering transitions. If the start time is
+ * equal to -1, the transition is complete.
+ * @type {Object<string, number>}
+ */
+
+ _this.transitionStarts_ = {};
+ return _this;
+ }
+ /**
+ * @protected
+ */
+
+
+ Tile.prototype.changed = function () {
+ this.dispatchEvent(_EventType.default.CHANGE);
+ };
+ /**
+ * Called by the tile cache when the tile is removed from the cache due to expiry
+ */
+
+
+ Tile.prototype.release = function () {};
+ /**
+ * @return {string} Key.
+ */
+
+
+ Tile.prototype.getKey = function () {
+ return this.key + '/' + this.tileCoord;
+ };
+ /**
+ * Get the interim tile most suitable for rendering using the chain of interim
+ * tiles. This corresponds to the most recent tile that has been loaded, if no
+ * such tile exists, the original tile is returned.
+ * @return {!Tile} Best tile for rendering.
+ */
+
+
+ Tile.prototype.getInterimTile = function () {
+ if (!this.interimTile) {
+ //empty chain
+ return this;
+ }
+
+ var tile = this.interimTile; // find the first loaded tile and return it. Since the chain is sorted in
+ // decreasing order of creation time, there is no need to search the remainder
+ // of the list (all those tiles correspond to older requests and will be
+ // cleaned up by refreshInterimChain)
+
+ do {
+ if (tile.getState() == _TileState.default.LOADED) {
+ // Show tile immediately instead of fading it in after loading, because
+ // the interim tile is in place already
+ this.transition_ = 0;
+ return tile;
+ }
+
+ tile = tile.interimTile;
+ } while (tile); // we can not find a better tile
+
+
+ return this;
+ };
+ /**
+ * Goes through the chain of interim tiles and discards sections of the chain
+ * that are no longer relevant.
+ */
+
+
+ Tile.prototype.refreshInterimChain = function () {
+ if (!this.interimTile) {
+ return;
+ }
+
+ var tile = this.interimTile;
+ var prev =
+ /** @type {Tile} */
+ this;
+
+ do {
+ if (tile.getState() == _TileState.default.LOADED) {
+ //we have a loaded tile, we can discard the rest of the list
+ //we would could abort any LOADING tile request
+ //older than this tile (i.e. any LOADING tile following this entry in the chain)
+ tile.interimTile = null;
+ break;
+ } else if (tile.getState() == _TileState.default.LOADING) {
+ //keep this LOADING tile any loaded tiles later in the chain are
+ //older than this tile, so we're still interested in the request
+ prev = tile;
+ } else if (tile.getState() == _TileState.default.IDLE) {
+ //the head of the list is the most current tile, we don't need
+ //to start any other requests for this chain
+ prev.interimTile = tile.interimTile;
+ } else {
+ prev = tile;
+ }
+
+ tile = prev.interimTile;
+ } while (tile);
+ };
+ /**
+ * Get the tile coordinate for this tile.
+ * @return {import("./tilecoord.js").TileCoord} The tile coordinate.
+ * @api
+ */
+
+
+ Tile.prototype.getTileCoord = function () {
+ return this.tileCoord;
+ };
+ /**
+ * @return {import("./TileState.js").default} State.
+ */
+
+
+ Tile.prototype.getState = function () {
+ return this.state;
+ };
+ /**
+ * Sets the state of this tile. If you write your own {@link module:ol/Tile~LoadFunction tileLoadFunction} ,
+ * it is important to set the state correctly to {@link module:ol/TileState~ERROR}
+ * when the tile cannot be loaded. Otherwise the tile cannot be removed from
+ * the tile queue and will block other requests.
+ * @param {import("./TileState.js").default} state State.
+ * @api
+ */
+
+
+ Tile.prototype.setState = function (state) {
+ if (this.state !== _TileState.default.ERROR && this.state > state) {
+ throw new Error('Tile load sequence violation');
+ }
+
+ this.state = state;
+ this.changed();
+ };
+ /**
+ * Load the image or retry if loading previously failed.
+ * Loading is taken care of by the tile queue, and calling this method is
+ * only needed for preloading or for reloading in case of an error.
+ * @abstract
+ * @api
+ */
+
+
+ Tile.prototype.load = function () {
+ (0, _util.abstract)();
+ };
+ /**
+ * Get the alpha value for rendering.
+ * @param {string} id An id for the renderer.
+ * @param {number} time The render frame time.
+ * @return {number} A number between 0 and 1.
+ */
+
+
+ Tile.prototype.getAlpha = function (id, time) {
+ if (!this.transition_) {
+ return 1;
+ }
+
+ var start = this.transitionStarts_[id];
+
+ if (!start) {
+ start = time;
+ this.transitionStarts_[id] = start;
+ } else if (start === -1) {
+ return 1;
+ }
+
+ var delta = time - start + 1000 / 60; // avoid rendering at 0
+
+ if (delta >= this.transition_) {
+ return 1;
+ }
+
+ return (0, _easing.easeIn)(delta / this.transition_);
+ };
+ /**
+ * Determine if a tile is in an alpha transition. A tile is considered in
+ * transition if tile.getAlpha() has not yet been called or has been called
+ * and returned 1.
+ * @param {string} id An id for the renderer.
+ * @return {boolean} The tile is in transition.
+ */
+
+
+ Tile.prototype.inTransition = function (id) {
+ if (!this.transition_) {
+ return false;
+ }
+
+ return this.transitionStarts_[id] !== -1;
+ };
+ /**
+ * Mark a transition as complete.
+ * @param {string} id An id for the renderer.
+ */
+
+
+ Tile.prototype.endTransition = function (id) {
+ if (this.transition_) {
+ this.transitionStarts_[id] = -1;
+ }
+ };
+
+ return Tile;
+}(_Target.default);
+
+var _default = Tile;
+exports.default = _default;
+},{"./events/Target.js":"../../../node_modules/ol/events/Target.js","./events/EventType.js":"../../../node_modules/ol/events/EventType.js","./TileState.js":"../../../node_modules/ol/TileState.js","./util.js":"../../../node_modules/ol/util.js","./easing.js":"../../../node_modules/ol/easing.js"}],"../../../node_modules/ol/ImageTile.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Tile = _interopRequireDefault(require("./Tile.js"));
+
+var _TileState = _interopRequireDefault(require("./TileState.js"));
+
+var _dom = require("./dom.js");
+
+var _Image = require("./Image.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/ImageTile
+ */
+
+
+var ImageTile =
+/** @class */
+function (_super) {
+ __extends(ImageTile, _super);
+ /**
+ * @param {import("./tilecoord.js").TileCoord} tileCoord Tile coordinate.
+ * @param {import("./TileState.js").default} state State.
+ * @param {string} src Image source URI.
+ * @param {?string} crossOrigin Cross origin.
+ * @param {import("./Tile.js").LoadFunction} tileLoadFunction Tile load function.
+ * @param {import("./Tile.js").Options=} opt_options Tile options.
+ */
+
+
+ function ImageTile(tileCoord, state, src, crossOrigin, tileLoadFunction, opt_options) {
+ var _this = _super.call(this, tileCoord, state, opt_options) || this;
+ /**
+ * @private
+ * @type {?string}
+ */
+
+
+ _this.crossOrigin_ = crossOrigin;
+ /**
+ * Image URI
+ *
+ * @private
+ * @type {string}
+ */
+
+ _this.src_ = src;
+ /**
+ * @private
+ * @type {HTMLImageElement|HTMLCanvasElement}
+ */
+
+ _this.image_ = new Image();
+
+ if (crossOrigin !== null) {
+ _this.image_.crossOrigin = crossOrigin;
+ }
+ /**
+ * @private
+ * @type {?function():void}
+ */
+
+
+ _this.unlisten_ = null;
+ /**
+ * @private
+ * @type {import("./Tile.js").LoadFunction}
+ */
+
+ _this.tileLoadFunction_ = tileLoadFunction;
+ return _this;
+ }
+ /**
+ * Get the HTML image element for this tile (may be a Canvas, Image, or Video).
+ * @return {HTMLCanvasElement|HTMLImageElement|HTMLVideoElement} Image.
+ * @api
+ */
+
+
+ ImageTile.prototype.getImage = function () {
+ return this.image_;
+ };
+ /**
+ * @return {string} Key.
+ */
+
+
+ ImageTile.prototype.getKey = function () {
+ return this.src_;
+ };
+ /**
+ * Tracks loading or read errors.
+ *
+ * @private
+ */
+
+
+ ImageTile.prototype.handleImageError_ = function () {
+ this.state = _TileState.default.ERROR;
+ this.unlistenImage_();
+ this.image_ = getBlankImage();
+ this.changed();
+ };
+ /**
+ * Tracks successful image load.
+ *
+ * @private
+ */
+
+
+ ImageTile.prototype.handleImageLoad_ = function () {
+ var image =
+ /** @type {HTMLImageElement} */
+ this.image_;
+
+ if (image.naturalWidth && image.naturalHeight) {
+ this.state = _TileState.default.LOADED;
+ } else {
+ this.state = _TileState.default.EMPTY;
+ }
+
+ this.unlistenImage_();
+ this.changed();
+ };
+ /**
+ * Load not yet loaded URI.
+ * @api
+ */
+
+
+ ImageTile.prototype.load = function () {
+ if (this.state == _TileState.default.ERROR) {
+ this.state = _TileState.default.IDLE;
+ this.image_ = new Image();
+
+ if (this.crossOrigin_ !== null) {
+ this.image_.crossOrigin = this.crossOrigin_;
+ }
+ }
+
+ if (this.state == _TileState.default.IDLE) {
+ this.state = _TileState.default.LOADING;
+ this.changed();
+ this.tileLoadFunction_(this, this.src_);
+ this.unlisten_ = (0, _Image.listenImage)(this.image_, this.handleImageLoad_.bind(this), this.handleImageError_.bind(this));
+ }
+ };
+ /**
+ * Discards event handlers which listen for load completion or errors.
+ *
+ * @private
+ */
+
+
+ ImageTile.prototype.unlistenImage_ = function () {
+ if (this.unlisten_) {
+ this.unlisten_();
+ this.unlisten_ = null;
+ }
+ };
+
+ return ImageTile;
+}(_Tile.default);
+/**
+ * Get a 1-pixel blank image.
+ * @return {HTMLCanvasElement} Blank image.
+ */
+
+
+function getBlankImage() {
+ var ctx = (0, _dom.createCanvasContext2D)(1, 1);
+ ctx.fillStyle = 'rgba(0,0,0,0)';
+ ctx.fillRect(0, 0, 1, 1);
+ return ctx.canvas;
+}
+
+var _default = ImageTile;
+exports.default = _default;
+},{"./Tile.js":"../../../node_modules/ol/Tile.js","./TileState.js":"../../../node_modules/ol/TileState.js","./dom.js":"../../../node_modules/ol/dom.js","./Image.js":"../../../node_modules/ol/Image.js"}],"../../../node_modules/ol/Kinetic.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+/**
+ * @module ol/Kinetic
+ */
+
+/**
+ * @classdesc
+ * Implementation of inertial deceleration for map movement.
+ *
+ * @api
+ */
+var Kinetic =
+/** @class */
+function () {
+ /**
+ * @param {number} decay Rate of decay (must be negative).
+ * @param {number} minVelocity Minimum velocity (pixels/millisecond).
+ * @param {number} delay Delay to consider to calculate the kinetic
+ * initial values (milliseconds).
+ */
+ function Kinetic(decay, minVelocity, delay) {
+ /**
+ * @private
+ * @type {number}
+ */
+ this.decay_ = decay;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ this.minVelocity_ = minVelocity;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ this.delay_ = delay;
+ /**
+ * @private
+ * @type {Array<number>}
+ */
+
+ this.points_ = [];
+ /**
+ * @private
+ * @type {number}
+ */
+
+ this.angle_ = 0;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ this.initialVelocity_ = 0;
+ }
+ /**
+ * FIXME empty description for jsdoc
+ */
+
+
+ Kinetic.prototype.begin = function () {
+ this.points_.length = 0;
+ this.angle_ = 0;
+ this.initialVelocity_ = 0;
+ };
+ /**
+ * @param {number} x X.
+ * @param {number} y Y.
+ */
+
+
+ Kinetic.prototype.update = function (x, y) {
+ this.points_.push(x, y, Date.now());
+ };
+ /**
+ * @return {boolean} Whether we should do kinetic animation.
+ */
+
+
+ Kinetic.prototype.end = function () {
+ if (this.points_.length < 6) {
+ // at least 2 points are required (i.e. there must be at least 6 elements
+ // in the array)
+ return false;
+ }
+
+ var delay = Date.now() - this.delay_;
+ var lastIndex = this.points_.length - 3;
+
+ if (this.points_[lastIndex + 2] < delay) {
+ // the last tracked point is too old, which means that the user stopped
+ // panning before releasing the map
+ return false;
+ } // get the first point which still falls into the delay time
+
+
+ var firstIndex = lastIndex - 3;
+
+ while (firstIndex > 0 && this.points_[firstIndex + 2] > delay) {
+ firstIndex -= 3;
+ }
+
+ var duration = this.points_[lastIndex + 2] - this.points_[firstIndex + 2]; // we don't want a duration of 0 (divide by zero)
+ // we also make sure the user panned for a duration of at least one frame
+ // (1/60s) to compute sane displacement values
+
+ if (duration < 1000 / 60) {
+ return false;
+ }
+
+ var dx = this.points_[lastIndex] - this.points_[firstIndex];
+ var dy = this.points_[lastIndex + 1] - this.points_[firstIndex + 1];
+ this.angle_ = Math.atan2(dy, dx);
+ this.initialVelocity_ = Math.sqrt(dx * dx + dy * dy) / duration;
+ return this.initialVelocity_ > this.minVelocity_;
+ };
+ /**
+ * @return {number} Total distance travelled (pixels).
+ */
+
+
+ Kinetic.prototype.getDistance = function () {
+ return (this.minVelocity_ - this.initialVelocity_) / this.decay_;
+ };
+ /**
+ * @return {number} Angle of the kinetic panning animation (radians).
+ */
+
+
+ Kinetic.prototype.getAngle = function () {
+ return this.angle_;
+ };
+
+ return Kinetic;
+}();
+
+var _default = Kinetic;
+exports.default = _default;
+},{}],"../../../node_modules/ol/renderer/Map.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Disposable = _interopRequireDefault(require("../Disposable.js"));
+
+var _functions = require("../functions.js");
+
+var _util = require("../util.js");
+
+var _transform = require("../transform.js");
+
+var _extent = require("../extent.js");
+
+var _IconImageCache = require("../style/IconImageCache.js");
+
+var _Layer = require("../layer/Layer.js");
+
+var _render = require("../render.js");
+
+var _coordinate = require("../coordinate.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/renderer/Map
+ */
+
+
+/**
+ * @abstract
+ */
+var MapRenderer =
+/** @class */
+function (_super) {
+ __extends(MapRenderer, _super);
+ /**
+ * @param {import("../PluggableMap.js").default} map Map.
+ */
+
+
+ function MapRenderer(map) {
+ var _this = _super.call(this) || this;
+ /**
+ * @private
+ * @type {import("../PluggableMap.js").default}
+ */
+
+
+ _this.map_ = map;
+ /**
+ * @private
+ */
+
+ _this.declutterTree_ = null;
+ return _this;
+ }
+ /**
+ * @abstract
+ * @param {import("../render/EventType.js").default} type Event type.
+ * @param {import("../PluggableMap.js").FrameState} frameState Frame state.
+ */
+
+
+ MapRenderer.prototype.dispatchRenderEvent = function (type, frameState) {
+ (0, _util.abstract)();
+ };
+ /**
+ * @param {import("../PluggableMap.js").FrameState} frameState FrameState.
+ * @protected
+ */
+
+
+ MapRenderer.prototype.calculateMatrices2D = function (frameState) {
+ var viewState = frameState.viewState;
+ var coordinateToPixelTransform = frameState.coordinateToPixelTransform;
+ var pixelToCoordinateTransform = frameState.pixelToCoordinateTransform;
+ (0, _transform.compose)(coordinateToPixelTransform, frameState.size[0] / 2, frameState.size[1] / 2, 1 / viewState.resolution, -1 / viewState.resolution, -viewState.rotation, -viewState.center[0], -viewState.center[1]);
+ (0, _transform.makeInverse)(pixelToCoordinateTransform, coordinateToPixelTransform);
+ };
+ /**
+ * @param {import("../coordinate.js").Coordinate} coordinate Coordinate.
+ * @param {import("../PluggableMap.js").FrameState} frameState FrameState.
+ * @param {number} hitTolerance Hit tolerance in pixels.
+ * @param {boolean} checkWrapped Check for wrapped geometries.
+ * @param {function(this: S, import("../Feature.js").FeatureLike,
+ * import("../layer/Layer.js").default): T} callback Feature callback.
+ * @param {S} thisArg Value to use as `this` when executing `callback`.
+ * @param {function(this: U, import("../layer/Layer.js").default): boolean} layerFilter Layer filter
+ * function, only layers which are visible and for which this function
+ * returns `true` will be tested for features. By default, all visible
+ * layers will be tested.
+ * @param {U} thisArg2 Value to use as `this` when executing `layerFilter`.
+ * @return {T|undefined} Callback result.
+ * @template S,T,U
+ */
+
+
+ MapRenderer.prototype.forEachFeatureAtCoordinate = function (coordinate, frameState, hitTolerance, checkWrapped, callback, thisArg, layerFilter, thisArg2) {
+ var result;
+ var viewState = frameState.viewState;
+ /**
+ * @param {boolean} managed Managed layer.
+ * @param {import("../Feature.js").FeatureLike} feature Feature.
+ * @param {import("../layer/Layer.js").default} layer Layer.
+ * @return {?} Callback result.
+ */
+
+ function forEachFeatureAtCoordinate(managed, feature, layer) {
+ return callback.call(thisArg, feature, managed ? layer : null);
+ }
+
+ var projection = viewState.projection;
+ var translatedCoordinate = (0, _coordinate.wrapX)(coordinate.slice(), projection);
+ var offsets = [[0, 0]];
+
+ if (projection.canWrapX() && checkWrapped) {
+ var projectionExtent = projection.getExtent();
+ var worldWidth = (0, _extent.getWidth)(projectionExtent);
+ offsets.push([-worldWidth, 0], [worldWidth, 0]);
+ }
+
+ var layerStates = frameState.layerStatesArray;
+ var numLayers = layerStates.length;
+ var declutteredFeatures;
+
+ if (this.declutterTree_) {
+ declutteredFeatures = this.declutterTree_.all().map(function (entry) {
+ return entry.value;
+ });
+ }
+
+ var tmpCoord = [];
+
+ for (var i = 0; i < offsets.length; i++) {
+ for (var j = numLayers - 1; j >= 0; --j) {
+ var layerState = layerStates[j];
+ var layer =
+ /** @type {import("../layer/Layer.js").default} */
+ layerState.layer;
+
+ if (layer.hasRenderer() && (0, _Layer.inView)(layerState, viewState) && layerFilter.call(thisArg2, layer)) {
+ var layerRenderer = layer.getRenderer();
+ var source = layer.getSource();
+
+ if (layerRenderer && source) {
+ var coordinates = source.getWrapX() ? translatedCoordinate : coordinate;
+ var callback_1 = forEachFeatureAtCoordinate.bind(null, layerState.managed);
+ tmpCoord[0] = coordinates[0] + offsets[i][0];
+ tmpCoord[1] = coordinates[1] + offsets[i][1];
+ result = layerRenderer.forEachFeatureAtCoordinate(tmpCoord, frameState, hitTolerance, callback_1, declutteredFeatures);
+ }
+
+ if (result) {
+ return result;
+ }
+ }
+ }
+ }
+
+ return undefined;
+ };
+ /**
+ * @abstract
+ * @param {import("../pixel.js").Pixel} pixel Pixel.
+ * @param {import("../PluggableMap.js").FrameState} frameState FrameState.
+ * @param {number} hitTolerance Hit tolerance in pixels.
+ * @param {function(import("../layer/Layer.js").default, (Uint8ClampedArray|Uint8Array)): T} callback Layer
+ * callback.
+ * @param {function(import("../layer/Layer.js").default): boolean} layerFilter Layer filter
+ * function, only layers which are visible and for which this function
+ * returns `true` will be tested for features. By default, all visible
+ * layers will be tested.
+ * @return {T|undefined} Callback result.
+ * @template T
+ */
+
+
+ MapRenderer.prototype.forEachLayerAtPixel = function (pixel, frameState, hitTolerance, callback, layerFilter) {
+ return (0, _util.abstract)();
+ };
+ /**
+ * @param {import("../coordinate.js").Coordinate} coordinate Coordinate.
+ * @param {import("../PluggableMap.js").FrameState} frameState FrameState.
+ * @param {number} hitTolerance Hit tolerance in pixels.
+ * @param {boolean} checkWrapped Check for wrapped geometries.
+ * @param {function(this: U, import("../layer/Layer.js").default): boolean} layerFilter Layer filter
+ * function, only layers which are visible and for which this function
+ * returns `true` will be tested for features. By default, all visible
+ * layers will be tested.
+ * @param {U} thisArg Value to use as `this` when executing `layerFilter`.
+ * @return {boolean} Is there a feature at the given coordinate?
+ * @template U
+ */
+
+
+ MapRenderer.prototype.hasFeatureAtCoordinate = function (coordinate, frameState, hitTolerance, checkWrapped, layerFilter, thisArg) {
+ var hasFeature = this.forEachFeatureAtCoordinate(coordinate, frameState, hitTolerance, checkWrapped, _functions.TRUE, this, layerFilter, thisArg);
+ return hasFeature !== undefined;
+ };
+ /**
+ * @return {import("../PluggableMap.js").default} Map.
+ */
+
+
+ MapRenderer.prototype.getMap = function () {
+ return this.map_;
+ };
+ /**
+ * Render.
+ * @param {?import("../PluggableMap.js").FrameState} frameState Frame state.
+ */
+
+
+ MapRenderer.prototype.renderFrame = function (frameState) {
+ this.declutterTree_ = (0, _render.renderDeclutterItems)(frameState, this.declutterTree_);
+ };
+ /**
+ * @param {import("../PluggableMap.js").FrameState} frameState Frame state.
+ * @protected
+ */
+
+
+ MapRenderer.prototype.scheduleExpireIconCache = function (frameState) {
+ if (_IconImageCache.shared.canExpireCache()) {
+ frameState.postRenderFunctions.push(expireIconCache);
+ }
+ };
+
+ return MapRenderer;
+}(_Disposable.default);
+/**
+ * @param {import("../PluggableMap.js").default} map Map.
+ * @param {import("../PluggableMap.js").FrameState} frameState Frame state.
+ */
+
+
+function expireIconCache(map, frameState) {
+ _IconImageCache.shared.expire();
+}
+
+var _default = MapRenderer;
+exports.default = _default;
+},{"../Disposable.js":"../../../node_modules/ol/Disposable.js","../functions.js":"../../../node_modules/ol/functions.js","../util.js":"../../../node_modules/ol/util.js","../transform.js":"../../../node_modules/ol/transform.js","../extent.js":"../../../node_modules/ol/extent.js","../style/IconImageCache.js":"../../../node_modules/ol/style/IconImageCache.js","../layer/Layer.js":"../../../node_modules/ol/layer/Layer.js","../render.js":"../../../node_modules/ol/render.js","../coordinate.js":"../../../node_modules/ol/coordinate.js"}],"../../../node_modules/ol/renderer/Composite.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Map = _interopRequireDefault(require("./Map.js"));
+
+var _ObjectEventType = _interopRequireDefault(require("../ObjectEventType.js"));
+
+var _Event = _interopRequireDefault(require("../render/Event.js"));
+
+var _EventType = _interopRequireDefault(require("../render/EventType.js"));
+
+var _State = _interopRequireDefault(require("../source/State.js"));
+
+var _css = require("../css.js");
+
+var _canvas = require("../render/canvas.js");
+
+var _Layer = require("../layer/Layer.js");
+
+var _events = require("../events.js");
+
+var _dom = require("../dom.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/renderer/Composite
+ */
+
+
+/**
+ * @classdesc
+ * Canvas map renderer.
+ * @api
+ */
+var CompositeMapRenderer =
+/** @class */
+function (_super) {
+ __extends(CompositeMapRenderer, _super);
+ /**
+ * @param {import("../PluggableMap.js").default} map Map.
+ */
+
+
+ function CompositeMapRenderer(map) {
+ var _this = _super.call(this, map) || this;
+ /**
+ * @type {import("../events.js").EventsKey}
+ */
+
+
+ _this.fontChangeListenerKey_ = (0, _events.listen)(_canvas.checkedFonts, _ObjectEventType.default.PROPERTYCHANGE, map.redrawText.bind(map));
+ /**
+ * @private
+ * @type {HTMLDivElement}
+ */
+
+ _this.element_ = document.createElement('div');
+ var style = _this.element_.style;
+ style.position = 'absolute';
+ style.width = '100%';
+ style.height = '100%';
+ style.zIndex = '0';
+ _this.element_.className = _css.CLASS_UNSELECTABLE + ' ol-layers';
+ var container = map.getViewport();
+ container.insertBefore(_this.element_, container.firstChild || null);
+ /**
+ * @private
+ * @type {Array<HTMLElement>}
+ */
+
+ _this.children_ = [];
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ _this.renderedVisible_ = true;
+ return _this;
+ }
+ /**
+ * @param {import("../render/EventType.js").default} type Event type.
+ * @param {import("../PluggableMap.js").FrameState} frameState Frame state.
+ */
+
+
+ CompositeMapRenderer.prototype.dispatchRenderEvent = function (type, frameState) {
+ var map = this.getMap();
+
+ if (map.hasListener(type)) {
+ var event_1 = new _Event.default(type, undefined, frameState);
+ map.dispatchEvent(event_1);
+ }
+ };
+
+ CompositeMapRenderer.prototype.disposeInternal = function () {
+ (0, _events.unlistenByKey)(this.fontChangeListenerKey_);
+ this.element_.parentNode.removeChild(this.element_);
+
+ _super.prototype.disposeInternal.call(this);
+ };
+ /**
+ * Render.
+ * @param {?import("../PluggableMap.js").FrameState} frameState Frame state.
+ */
+
+
+ CompositeMapRenderer.prototype.renderFrame = function (frameState) {
+ if (!frameState) {
+ if (this.renderedVisible_) {
+ this.element_.style.display = 'none';
+ this.renderedVisible_ = false;
+ }
+
+ return;
+ }
+
+ this.calculateMatrices2D(frameState);
+ this.dispatchRenderEvent(_EventType.default.PRECOMPOSE, frameState);
+ var layerStatesArray = frameState.layerStatesArray.sort(function (a, b) {
+ return a.zIndex - b.zIndex;
+ });
+ var viewState = frameState.viewState;
+ this.children_.length = 0;
+ var previousElement = null;
+
+ for (var i = 0, ii = layerStatesArray.length; i < ii; ++i) {
+ var layerState = layerStatesArray[i];
+ frameState.layerIndex = i;
+
+ if (!(0, _Layer.inView)(layerState, viewState) || layerState.sourceState != _State.default.READY && layerState.sourceState != _State.default.UNDEFINED) {
+ continue;
+ }
+
+ var layer = layerState.layer;
+ var element = layer.render(frameState, previousElement);
+
+ if (!element) {
+ continue;
+ }
+
+ if (element !== previousElement) {
+ this.children_.push(element);
+ previousElement = element;
+ }
+ }
+
+ _super.prototype.renderFrame.call(this, frameState);
+
+ (0, _dom.replaceChildren)(this.element_, this.children_);
+ this.dispatchRenderEvent(_EventType.default.POSTCOMPOSE, frameState);
+
+ if (!this.renderedVisible_) {
+ this.element_.style.display = '';
+ this.renderedVisible_ = true;
+ }
+
+ this.scheduleExpireIconCache(frameState);
+ };
+ /**
+ * @param {import("../pixel.js").Pixel} pixel Pixel.
+ * @param {import("../PluggableMap.js").FrameState} frameState FrameState.
+ * @param {number} hitTolerance Hit tolerance in pixels.
+ * @param {function(import("../layer/Layer.js").default, (Uint8ClampedArray|Uint8Array)): T} callback Layer
+ * callback.
+ * @param {function(import("../layer/Layer.js").default): boolean} layerFilter Layer filter
+ * function, only layers which are visible and for which this function
+ * returns `true` will be tested for features. By default, all visible
+ * layers will be tested.
+ * @return {T|undefined} Callback result.
+ * @template T
+ */
+
+
+ CompositeMapRenderer.prototype.forEachLayerAtPixel = function (pixel, frameState, hitTolerance, callback, layerFilter) {
+ var viewState = frameState.viewState;
+ var layerStates = frameState.layerStatesArray;
+ var numLayers = layerStates.length;
+
+ for (var i = numLayers - 1; i >= 0; --i) {
+ var layerState = layerStates[i];
+ var layer = layerState.layer;
+
+ if (layer.hasRenderer() && (0, _Layer.inView)(layerState, viewState) && layerFilter(layer)) {
+ var layerRenderer = layer.getRenderer();
+ var data = layerRenderer.getDataAtPixel(pixel, frameState, hitTolerance);
+
+ if (data) {
+ var result = callback(layer, data);
+
+ if (result) {
+ return result;
+ }
+ }
+ }
+ }
+
+ return undefined;
+ };
+
+ return CompositeMapRenderer;
+}(_Map.default);
+
+var _default = CompositeMapRenderer;
+exports.default = _default;
+},{"./Map.js":"../../../node_modules/ol/renderer/Map.js","../ObjectEventType.js":"../../../node_modules/ol/ObjectEventType.js","../render/Event.js":"../../../node_modules/ol/render/Event.js","../render/EventType.js":"../../../node_modules/ol/render/EventType.js","../source/State.js":"../../../node_modules/ol/source/State.js","../css.js":"../../../node_modules/ol/css.js","../render/canvas.js":"../../../node_modules/ol/render/canvas.js","../layer/Layer.js":"../../../node_modules/ol/layer/Layer.js","../events.js":"../../../node_modules/ol/events.js","../dom.js":"../../../node_modules/ol/dom.js"}],"../../../node_modules/ol/layer/Group.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Base = _interopRequireDefault(require("./Base.js"));
+
+var _Collection = _interopRequireDefault(require("../Collection.js"));
+
+var _CollectionEventType = _interopRequireDefault(require("../CollectionEventType.js"));
+
+var _EventType = _interopRequireDefault(require("../events/EventType.js"));
+
+var _ObjectEventType = _interopRequireDefault(require("../ObjectEventType.js"));
+
+var _State = _interopRequireDefault(require("../source/State.js"));
+
+var _asserts = require("../asserts.js");
+
+var _obj = require("../obj.js");
+
+var _Object = require("../Object.js");
+
+var _extent = require("../extent.js");
+
+var _util = require("../util.js");
+
+var _events = require("../events.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/layer/Group
+ */
+
+
+/**
+ * @typedef {Object} Options
+ * @property {number} [opacity=1] Opacity (0, 1).
+ * @property {boolean} [visible=true] Visibility.
+ * @property {import("../extent.js").Extent} [extent] The bounding extent for layer rendering. The layer will not be
+ * rendered outside of this extent.
+ * @property {number} [zIndex] The z-index for layer rendering. At rendering time, the layers
+ * will be ordered, first by Z-index and then by position. When `undefined`, a `zIndex` of 0 is assumed
+ * for layers that are added to the map's `layers` collection, or `Infinity` when the layer's `setMap()`
+ * method was used.
+ * @property {number} [minResolution] The minimum resolution (inclusive) at which this layer will be
+ * visible.
+ * @property {number} [maxResolution] The maximum resolution (exclusive) below which this layer will
+ * be visible.
+ * @property {number} [minZoom] The minimum view zoom level (exclusive) above which this layer will be
+ * visible.
+ * @property {number} [maxZoom] The maximum view zoom level (inclusive) at which this layer will
+ * be visible.
+ * @property {number} [minZoom] The minimum view zoom level (exclusive) above which this layer will be
+ * visible.
+ * @property {number} [maxZoom] The maximum view zoom level (inclusive) at which this layer will
+ * be visible.
+ * @property {Array<import("./Base.js").default>|import("../Collection.js").default<import("./Base.js").default>} [layers] Child layers.
+ */
+
+/**
+ * @enum {string}
+ * @private
+ */
+var Property = {
+ LAYERS: 'layers'
+};
+/**
+ * @classdesc
+ * A {@link module:ol/Collection~Collection} of layers that are handled together.
+ *
+ * A generic `change` event is triggered when the group/Collection changes.
+ *
+ * @api
+ */
+
+var LayerGroup =
+/** @class */
+function (_super) {
+ __extends(LayerGroup, _super);
+ /**
+ * @param {Options=} opt_options Layer options.
+ */
+
+
+ function LayerGroup(opt_options) {
+ var _this = this;
+
+ var options = opt_options || {};
+ var baseOptions =
+ /** @type {Options} */
+ (0, _obj.assign)({}, options);
+ delete baseOptions.layers;
+ var layers = options.layers;
+ _this = _super.call(this, baseOptions) || this;
+ /**
+ * @private
+ * @type {Array<import("../events.js").EventsKey>}
+ */
+
+ _this.layersListenerKeys_ = [];
+ /**
+ * @private
+ * @type {Object<string, Array<import("../events.js").EventsKey>>}
+ */
+
+ _this.listenerKeys_ = {};
+
+ _this.addEventListener((0, _Object.getChangeEventType)(Property.LAYERS), _this.handleLayersChanged_);
+
+ if (layers) {
+ if (Array.isArray(layers)) {
+ layers = new _Collection.default(layers.slice(), {
+ unique: true
+ });
+ } else {
+ (0, _asserts.assert)(typeof
+ /** @type {?} */
+ layers.getArray === 'function', 43); // Expected `layers` to be an array or a `Collection`
+ }
+ } else {
+ layers = new _Collection.default(undefined, {
+ unique: true
+ });
+ }
+
+ _this.setLayers(layers);
+
+ return _this;
+ }
+ /**
+ * @private
+ */
+
+
+ LayerGroup.prototype.handleLayerChange_ = function () {
+ this.changed();
+ };
+ /**
+ * @private
+ */
+
+
+ LayerGroup.prototype.handleLayersChanged_ = function () {
+ this.layersListenerKeys_.forEach(_events.unlistenByKey);
+ this.layersListenerKeys_.length = 0;
+ var layers = this.getLayers();
+ this.layersListenerKeys_.push((0, _events.listen)(layers, _CollectionEventType.default.ADD, this.handleLayersAdd_, this), (0, _events.listen)(layers, _CollectionEventType.default.REMOVE, this.handleLayersRemove_, this));
+
+ for (var id in this.listenerKeys_) {
+ this.listenerKeys_[id].forEach(_events.unlistenByKey);
+ }
+
+ (0, _obj.clear)(this.listenerKeys_);
+ var layersArray = layers.getArray();
+
+ for (var i = 0, ii = layersArray.length; i < ii; i++) {
+ var layer = layersArray[i];
+ this.listenerKeys_[(0, _util.getUid)(layer)] = [(0, _events.listen)(layer, _ObjectEventType.default.PROPERTYCHANGE, this.handleLayerChange_, this), (0, _events.listen)(layer, _EventType.default.CHANGE, this.handleLayerChange_, this)];
+ }
+
+ this.changed();
+ };
+ /**
+ * @param {import("../Collection.js").CollectionEvent} collectionEvent CollectionEvent.
+ * @private
+ */
+
+
+ LayerGroup.prototype.handleLayersAdd_ = function (collectionEvent) {
+ var layer =
+ /** @type {import("./Base.js").default} */
+ collectionEvent.element;
+ this.listenerKeys_[(0, _util.getUid)(layer)] = [(0, _events.listen)(layer, _ObjectEventType.default.PROPERTYCHANGE, this.handleLayerChange_, this), (0, _events.listen)(layer, _EventType.default.CHANGE, this.handleLayerChange_, this)];
+ this.changed();
+ };
+ /**
+ * @param {import("../Collection.js").CollectionEvent} collectionEvent CollectionEvent.
+ * @private
+ */
+
+
+ LayerGroup.prototype.handleLayersRemove_ = function (collectionEvent) {
+ var layer =
+ /** @type {import("./Base.js").default} */
+ collectionEvent.element;
+ var key = (0, _util.getUid)(layer);
+ this.listenerKeys_[key].forEach(_events.unlistenByKey);
+ delete this.listenerKeys_[key];
+ this.changed();
+ };
+ /**
+ * Returns the {@link module:ol/Collection collection} of {@link module:ol/layer/Layer~Layer layers}
+ * in this group.
+ * @return {!import("../Collection.js").default<import("./Base.js").default>} Collection of
+ * {@link module:ol/layer/Base layers} that are part of this group.
+ * @observable
+ * @api
+ */
+
+
+ LayerGroup.prototype.getLayers = function () {
+ return (
+ /** @type {!import("../Collection.js").default<import("./Base.js").default>} */
+ this.get(Property.LAYERS)
+ );
+ };
+ /**
+ * Set the {@link module:ol/Collection collection} of {@link module:ol/layer/Layer~Layer layers}
+ * in this group.
+ * @param {!import("../Collection.js").default<import("./Base.js").default>} layers Collection of
+ * {@link module:ol/layer/Base layers} that are part of this group.
+ * @observable
+ * @api
+ */
+
+
+ LayerGroup.prototype.setLayers = function (layers) {
+ this.set(Property.LAYERS, layers);
+ };
+ /**
+ * @param {Array<import("./Layer.js").default>=} opt_array Array of layers (to be modified in place).
+ * @return {Array<import("./Layer.js").default>} Array of layers.
+ */
+
+
+ LayerGroup.prototype.getLayersArray = function (opt_array) {
+ var array = opt_array !== undefined ? opt_array : [];
+ this.getLayers().forEach(function (layer) {
+ layer.getLayersArray(array);
+ });
+ return array;
+ };
+ /**
+ * @param {Array<import("./Layer.js").State>=} opt_states Optional list of layer states (to be modified in place).
+ * @return {Array<import("./Layer.js").State>} List of layer states.
+ */
+
+
+ LayerGroup.prototype.getLayerStatesArray = function (opt_states) {
+ var states = opt_states !== undefined ? opt_states : [];
+ var pos = states.length;
+ this.getLayers().forEach(function (layer) {
+ layer.getLayerStatesArray(states);
+ });
+ var ownLayerState = this.getLayerState();
+
+ for (var i = pos, ii = states.length; i < ii; i++) {
+ var layerState = states[i];
+ layerState.opacity *= ownLayerState.opacity;
+ layerState.visible = layerState.visible && ownLayerState.visible;
+ layerState.maxResolution = Math.min(layerState.maxResolution, ownLayerState.maxResolution);
+ layerState.minResolution = Math.max(layerState.minResolution, ownLayerState.minResolution);
+ layerState.minZoom = Math.max(layerState.minZoom, ownLayerState.minZoom);
+ layerState.maxZoom = Math.min(layerState.maxZoom, ownLayerState.maxZoom);
+
+ if (ownLayerState.extent !== undefined) {
+ if (layerState.extent !== undefined) {
+ layerState.extent = (0, _extent.getIntersection)(layerState.extent, ownLayerState.extent);
+ } else {
+ layerState.extent = ownLayerState.extent;
+ }
+ }
+ }
+
+ return states;
+ };
+ /**
+ * @return {import("../source/State.js").default} Source state.
+ */
+
+
+ LayerGroup.prototype.getSourceState = function () {
+ return _State.default.READY;
+ };
+
+ return LayerGroup;
+}(_Base.default);
+
+var _default = LayerGroup;
+exports.default = _default;
+},{"./Base.js":"../../../node_modules/ol/layer/Base.js","../Collection.js":"../../../node_modules/ol/Collection.js","../CollectionEventType.js":"../../../node_modules/ol/CollectionEventType.js","../events/EventType.js":"../../../node_modules/ol/events/EventType.js","../ObjectEventType.js":"../../../node_modules/ol/ObjectEventType.js","../source/State.js":"../../../node_modules/ol/source/State.js","../asserts.js":"../../../node_modules/ol/asserts.js","../obj.js":"../../../node_modules/ol/obj.js","../Object.js":"../../../node_modules/ol/Object.js","../extent.js":"../../../node_modules/ol/extent.js","../util.js":"../../../node_modules/ol/util.js","../events.js":"../../../node_modules/ol/events.js"}],"../../../node_modules/ol/MapEvent.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Event = _interopRequireDefault(require("./events/Event.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/MapEvent
+ */
+
+
+/**
+ * @classdesc
+ * Events emitted as map events are instances of this type.
+ * See {@link module:ol/PluggableMap~PluggableMap} for which events trigger a map event.
+ */
+var MapEvent =
+/** @class */
+function (_super) {
+ __extends(MapEvent, _super);
+ /**
+ * @param {string} type Event type.
+ * @param {import("./PluggableMap.js").default} map Map.
+ * @param {?import("./PluggableMap.js").FrameState=} opt_frameState Frame state.
+ */
+
+
+ function MapEvent(type, map, opt_frameState) {
+ var _this = _super.call(this, type) || this;
+ /**
+ * The map where the event occurred.
+ * @type {import("./PluggableMap.js").default}
+ * @api
+ */
+
+
+ _this.map = map;
+ /**
+ * The frame state at the time of the event.
+ * @type {?import("./PluggableMap.js").FrameState}
+ * @api
+ */
+
+ _this.frameState = opt_frameState !== undefined ? opt_frameState : null;
+ return _this;
+ }
+
+ return MapEvent;
+}(_Event.default);
+
+var _default = MapEvent;
+exports.default = _default;
+},{"./events/Event.js":"../../../node_modules/ol/events/Event.js"}],"../../../node_modules/ol/MapBrowserEvent.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _MapEvent = _interopRequireDefault(require("./MapEvent.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/MapBrowserEvent
+ */
+
+
+/**
+ * @classdesc
+ * Events emitted as map browser events are instances of this type.
+ * See {@link module:ol/PluggableMap~PluggableMap} for which events trigger a map browser event.
+ * @template {UIEvent} EVENT
+ */
+var MapBrowserEvent =
+/** @class */
+function (_super) {
+ __extends(MapBrowserEvent, _super);
+ /**
+ * @param {string} type Event type.
+ * @param {import("./PluggableMap.js").default} map Map.
+ * @param {EVENT} originalEvent Original event.
+ * @param {boolean=} opt_dragging Is the map currently being dragged?
+ * @param {?import("./PluggableMap.js").FrameState=} opt_frameState Frame state.
+ */
+
+
+ function MapBrowserEvent(type, map, originalEvent, opt_dragging, opt_frameState) {
+ var _this = _super.call(this, type, map, opt_frameState) || this;
+ /**
+ * The original browser event.
+ * @const
+ * @type {EVENT}
+ * @api
+ */
+
+
+ _this.originalEvent = originalEvent;
+ /**
+ * The map pixel relative to the viewport corresponding to the original browser event.
+ * @type {?import("./pixel.js").Pixel}
+ */
+
+ _this.pixel_ = null;
+ /**
+ * The coordinate in the user projection corresponding to the original browser event.
+ * @type {?import("./coordinate.js").Coordinate}
+ */
+
+ _this.coordinate_ = null;
+ /**
+ * Indicates if the map is currently being dragged. Only set for
+ * `POINTERDRAG` and `POINTERMOVE` events. Default is `false`.
+ *
+ * @type {boolean}
+ * @api
+ */
+
+ _this.dragging = opt_dragging !== undefined ? opt_dragging : false;
+ return _this;
+ }
+
+ Object.defineProperty(MapBrowserEvent.prototype, "pixel", {
+ /**
+ * The map pixel relative to the viewport corresponding to the original event.
+ * @type {import("./pixel.js").Pixel}
+ * @api
+ */
+ get: function () {
+ if (!this.pixel_) {
+ this.pixel_ = this.map.getEventPixel(this.originalEvent);
+ }
+
+ return this.pixel_;
+ },
+ set: function (pixel) {
+ this.pixel_ = pixel;
+ },
+ enumerable: false,
+ configurable: true
+ });
+ Object.defineProperty(MapBrowserEvent.prototype, "coordinate", {
+ /**
+ * The coordinate corresponding to the original browser event. This will be in the user
+ * projection if one is set. Otherwise it will be in the view projection.
+ * @type {import("./coordinate.js").Coordinate}
+ * @api
+ */
+ get: function () {
+ if (!this.coordinate_) {
+ this.coordinate_ = this.map.getCoordinateFromPixel(this.pixel);
+ }
+
+ return this.coordinate_;
+ },
+ set: function (coordinate) {
+ this.coordinate_ = coordinate;
+ },
+ enumerable: false,
+ configurable: true
+ });
+ /**
+ * Prevents the default browser action.
+ * See https://developer.mozilla.org/en-US/docs/Web/API/event.preventDefault.
+ * @api
+ */
+
+ MapBrowserEvent.prototype.preventDefault = function () {
+ _super.prototype.preventDefault.call(this);
+
+ this.originalEvent.preventDefault();
+ };
+ /**
+ * Prevents further propagation of the current event.
+ * See https://developer.mozilla.org/en-US/docs/Web/API/event.stopPropagation.
+ * @api
+ */
+
+
+ MapBrowserEvent.prototype.stopPropagation = function () {
+ _super.prototype.stopPropagation.call(this);
+
+ this.originalEvent.stopPropagation();
+ };
+
+ return MapBrowserEvent;
+}(_MapEvent.default);
+
+var _default = MapBrowserEvent;
+exports.default = _default;
+},{"./MapEvent.js":"../../../node_modules/ol/MapEvent.js"}],"../../../node_modules/ol/MapBrowserEventType.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _EventType = _interopRequireDefault(require("./events/EventType.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module ol/MapBrowserEventType
+ */
+
+/**
+ * Constants for event names.
+ * @enum {string}
+ */
+var _default = {
+ /**
+ * A true single click with no dragging and no double click. Note that this
+ * event is delayed by 250 ms to ensure that it is not a double click.
+ * @event module:ol/MapBrowserEvent~MapBrowserEvent#singleclick
+ * @api
+ */
+ SINGLECLICK: 'singleclick',
+
+ /**
+ * A click with no dragging. A double click will fire two of this.
+ * @event module:ol/MapBrowserEvent~MapBrowserEvent#click
+ * @api
+ */
+ CLICK: _EventType.default.CLICK,
+
+ /**
+ * A true double click, with no dragging.
+ * @event module:ol/MapBrowserEvent~MapBrowserEvent#dblclick
+ * @api
+ */
+ DBLCLICK: _EventType.default.DBLCLICK,
+
+ /**
+ * Triggered when a pointer is dragged.
+ * @event module:ol/MapBrowserEvent~MapBrowserEvent#pointerdrag
+ * @api
+ */
+ POINTERDRAG: 'pointerdrag',
+
+ /**
+ * Triggered when a pointer is moved. Note that on touch devices this is
+ * triggered when the map is panned, so is not the same as mousemove.
+ * @event module:ol/MapBrowserEvent~MapBrowserEvent#pointermove
+ * @api
+ */
+ POINTERMOVE: 'pointermove',
+ POINTERDOWN: 'pointerdown',
+ POINTERUP: 'pointerup',
+ POINTEROVER: 'pointerover',
+ POINTEROUT: 'pointerout',
+ POINTERENTER: 'pointerenter',
+ POINTERLEAVE: 'pointerleave',
+ POINTERCANCEL: 'pointercancel'
+};
+exports.default = _default;
+},{"./events/EventType.js":"../../../node_modules/ol/events/EventType.js"}],"../../../node_modules/ol/pointer/EventType.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+/**
+ * @module ol/pointer/EventType
+ */
+
+/**
+ * Constants for event names.
+ * @enum {string}
+ */
+var _default = {
+ POINTERMOVE: 'pointermove',
+ POINTERDOWN: 'pointerdown',
+ POINTERUP: 'pointerup',
+ POINTEROVER: 'pointerover',
+ POINTEROUT: 'pointerout',
+ POINTERENTER: 'pointerenter',
+ POINTERLEAVE: 'pointerleave',
+ POINTERCANCEL: 'pointercancel'
+};
+exports.default = _default;
+},{}],"../../../node_modules/ol/MapBrowserEventHandler.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Target = _interopRequireDefault(require("./events/Target.js"));
+
+var _EventType = _interopRequireDefault(require("./events/EventType.js"));
+
+var _MapBrowserEvent = _interopRequireDefault(require("./MapBrowserEvent.js"));
+
+var _MapBrowserEventType = _interopRequireDefault(require("./MapBrowserEventType.js"));
+
+var _EventType2 = _interopRequireDefault(require("./pointer/EventType.js"));
+
+var _has = require("./has.js");
+
+var _events = require("./events.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module ol/MapBrowserEventHandler
+ */
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+
+var MapBrowserEventHandler =
+/** @class */
+function (_super) {
+ __extends(MapBrowserEventHandler, _super);
+ /**
+ * @param {import("./PluggableMap.js").default} map The map with the viewport to listen to events on.
+ * @param {number=} moveTolerance The minimal distance the pointer must travel to trigger a move.
+ */
+
+
+ function MapBrowserEventHandler(map, moveTolerance) {
+ var _this = _super.call(this, map) || this;
+ /**
+ * This is the element that we will listen to the real events on.
+ * @type {import("./PluggableMap.js").default}
+ * @private
+ */
+
+
+ _this.map_ = map;
+ /**
+ * @type {any}
+ * @private
+ */
+
+ _this.clickTimeoutId_;
+ /**
+ * @type {boolean}
+ * @private
+ */
+
+ _this.dragging_ = false;
+ /**
+ * @type {!Array<import("./events.js").EventsKey>}
+ * @private
+ */
+
+ _this.dragListenerKeys_ = [];
+ /**
+ * @type {number}
+ * @private
+ */
+
+ _this.moveTolerance_ = moveTolerance ? moveTolerance * _has.DEVICE_PIXEL_RATIO : _has.DEVICE_PIXEL_RATIO;
+ /**
+ * The most recent "down" type event (or null if none have occurred).
+ * Set on pointerdown.
+ * @type {PointerEvent}
+ * @private
+ */
+
+ _this.down_ = null;
+
+ var element = _this.map_.getViewport();
+ /**
+ * @type {number}
+ * @private
+ */
+
+
+ _this.activePointers_ = 0;
+ /**
+ * @type {!Object<number, boolean>}
+ * @private
+ */
+
+ _this.trackedTouches_ = {};
+ _this.element_ = element;
+ /**
+ * @type {?import("./events.js").EventsKey}
+ * @private
+ */
+
+ _this.pointerdownListenerKey_ = (0, _events.listen)(element, _EventType2.default.POINTERDOWN, _this.handlePointerDown_, _this);
+ /**
+ * @type {PointerEvent}
+ * @private
+ */
+
+ _this.originalPointerMoveEvent_;
+ /**
+ * @type {?import("./events.js").EventsKey}
+ * @private
+ */
+
+ _this.relayedListenerKey_ = (0, _events.listen)(element, _EventType2.default.POINTERMOVE, _this.relayEvent_, _this);
+ /**
+ * @private
+ */
+
+ _this.boundHandleTouchMove_ = _this.handleTouchMove_.bind(_this);
+
+ _this.element_.addEventListener(_EventType.default.TOUCHMOVE, _this.boundHandleTouchMove_, _has.PASSIVE_EVENT_LISTENERS ? {
+ passive: false
+ } : false);
+
+ return _this;
+ }
+ /**
+ * @param {PointerEvent} pointerEvent Pointer
+ * event.
+ * @private
+ */
+
+
+ MapBrowserEventHandler.prototype.emulateClick_ = function (pointerEvent) {
+ var newEvent = new _MapBrowserEvent.default(_MapBrowserEventType.default.CLICK, this.map_, pointerEvent);
+ this.dispatchEvent(newEvent);
+
+ if (this.clickTimeoutId_ !== undefined) {
+ // double-click
+ clearTimeout(this.clickTimeoutId_);
+ this.clickTimeoutId_ = undefined;
+ newEvent = new _MapBrowserEvent.default(_MapBrowserEventType.default.DBLCLICK, this.map_, pointerEvent);
+ this.dispatchEvent(newEvent);
+ } else {
+ // click
+ this.clickTimeoutId_ = setTimeout(function () {
+ this.clickTimeoutId_ = undefined;
+ var newEvent = new _MapBrowserEvent.default(_MapBrowserEventType.default.SINGLECLICK, this.map_, pointerEvent);
+ this.dispatchEvent(newEvent);
+ }.bind(this), 250);
+ }
+ };
+ /**
+ * Keeps track on how many pointers are currently active.
+ *
+ * @param {PointerEvent} pointerEvent Pointer
+ * event.
+ * @private
+ */
+
+
+ MapBrowserEventHandler.prototype.updateActivePointers_ = function (pointerEvent) {
+ var event = pointerEvent;
+
+ if (event.type == _MapBrowserEventType.default.POINTERUP || event.type == _MapBrowserEventType.default.POINTERCANCEL) {
+ delete this.trackedTouches_[event.pointerId];
+ } else if (event.type == _MapBrowserEventType.default.POINTERDOWN) {
+ this.trackedTouches_[event.pointerId] = true;
+ }
+
+ this.activePointers_ = Object.keys(this.trackedTouches_).length;
+ };
+ /**
+ * @param {PointerEvent} pointerEvent Pointer
+ * event.
+ * @private
+ */
+
+
+ MapBrowserEventHandler.prototype.handlePointerUp_ = function (pointerEvent) {
+ this.updateActivePointers_(pointerEvent);
+ var newEvent = new _MapBrowserEvent.default(_MapBrowserEventType.default.POINTERUP, this.map_, pointerEvent);
+ this.dispatchEvent(newEvent); // We emulate click events on left mouse button click, touch contact, and pen
+ // contact. isMouseActionButton returns true in these cases (evt.button is set
+ // to 0).
+ // See http://www.w3.org/TR/pointerevents/#button-states
+ // We only fire click, singleclick, and doubleclick if nobody has called
+ // event.stopPropagation() or event.preventDefault().
+
+ if (!newEvent.propagationStopped && !this.dragging_ && this.isMouseActionButton_(pointerEvent)) {
+ this.emulateClick_(this.down_);
+ }
+
+ if (this.activePointers_ === 0) {
+ this.dragListenerKeys_.forEach(_events.unlistenByKey);
+ this.dragListenerKeys_.length = 0;
+ this.dragging_ = false;
+ this.down_ = null;
+ }
+ };
+ /**
+ * @param {PointerEvent} pointerEvent Pointer
+ * event.
+ * @return {boolean} If the left mouse button was pressed.
+ * @private
+ */
+
+
+ MapBrowserEventHandler.prototype.isMouseActionButton_ = function (pointerEvent) {
+ return pointerEvent.button === 0;
+ };
+ /**
+ * @param {PointerEvent} pointerEvent Pointer
+ * event.
+ * @private
+ */
+
+
+ MapBrowserEventHandler.prototype.handlePointerDown_ = function (pointerEvent) {
+ this.updateActivePointers_(pointerEvent);
+ var newEvent = new _MapBrowserEvent.default(_MapBrowserEventType.default.POINTERDOWN, this.map_, pointerEvent);
+ this.dispatchEvent(newEvent);
+ this.down_ = pointerEvent;
+
+ if (this.dragListenerKeys_.length === 0) {
+ this.dragListenerKeys_.push((0, _events.listen)(document, _MapBrowserEventType.default.POINTERMOVE, this.handlePointerMove_, this), (0, _events.listen)(document, _MapBrowserEventType.default.POINTERUP, this.handlePointerUp_, this),
+ /* Note that the listener for `pointercancel is set up on
+ * `pointerEventHandler_` and not `documentPointerEventHandler_` like
+ * the `pointerup` and `pointermove` listeners.
+ *
+ * The reason for this is the following: `TouchSource.vacuumTouches_()`
+ * issues `pointercancel` events, when there was no `touchend` for a
+ * `touchstart`. Now, let's say a first `touchstart` is registered on
+ * `pointerEventHandler_`. The `documentPointerEventHandler_` is set up.
+ * But `documentPointerEventHandler_` doesn't know about the first
+ * `touchstart`. If there is no `touchend` for the `touchstart`, we can
+ * only receive a `touchcancel` from `pointerEventHandler_`, because it is
+ * only registered there.
+ */
+ (0, _events.listen)(this.element_, _MapBrowserEventType.default.POINTERCANCEL, this.handlePointerUp_, this));
+
+ if (this.element_.getRootNode && this.element_.getRootNode() !== document) {
+ this.dragListenerKeys_.push((0, _events.listen)(this.element_.getRootNode(), _MapBrowserEventType.default.POINTERUP, this.handlePointerUp_, this));
+ }
+ }
+ };
+ /**
+ * @param {PointerEvent} pointerEvent Pointer
+ * event.
+ * @private
+ */
+
+
+ MapBrowserEventHandler.prototype.handlePointerMove_ = function (pointerEvent) {
+ // Between pointerdown and pointerup, pointermove events are triggered.
+ // To avoid a 'false' touchmove event to be dispatched, we test if the pointer
+ // moved a significant distance.
+ if (this.isMoving_(pointerEvent)) {
+ this.dragging_ = true;
+ var newEvent = new _MapBrowserEvent.default(_MapBrowserEventType.default.POINTERDRAG, this.map_, pointerEvent, this.dragging_);
+ this.dispatchEvent(newEvent);
+ }
+ };
+ /**
+ * Wrap and relay a pointer event. Note that this requires that the type
+ * string for the MapBrowserEvent matches the PointerEvent type.
+ * @param {PointerEvent} pointerEvent Pointer
+ * event.
+ * @private
+ */
+
+
+ MapBrowserEventHandler.prototype.relayEvent_ = function (pointerEvent) {
+ this.originalPointerMoveEvent_ = pointerEvent;
+ var dragging = !!(this.down_ && this.isMoving_(pointerEvent));
+ this.dispatchEvent(new _MapBrowserEvent.default(pointerEvent.type, this.map_, pointerEvent, dragging));
+ };
+ /**
+ * Flexible handling of a `touch-action: none` css equivalent: because calling
+ * `preventDefault()` on a `pointermove` event does not stop native page scrolling
+ * and zooming, we also listen for `touchmove` and call `preventDefault()` on it
+ * when an interaction (currently `DragPan` handles the event.
+ * @param {TouchEvent} event Event.
+ * @private
+ */
+
+
+ MapBrowserEventHandler.prototype.handleTouchMove_ = function (event) {
+ // Due to https://github.com/mpizenberg/elm-pep/issues/2, `this.originalPointerMoveEvent_`
+ // may not be initialized yet when we get here on a platform without native pointer events.
+ if (!this.originalPointerMoveEvent_ || this.originalPointerMoveEvent_.defaultPrevented) {
+ event.preventDefault();
+ }
+ };
+ /**
+ * @param {PointerEvent} pointerEvent Pointer
+ * event.
+ * @return {boolean} Is moving.
+ * @private
+ */
+
+
+ MapBrowserEventHandler.prototype.isMoving_ = function (pointerEvent) {
+ return this.dragging_ || Math.abs(pointerEvent.clientX - this.down_.clientX) > this.moveTolerance_ || Math.abs(pointerEvent.clientY - this.down_.clientY) > this.moveTolerance_;
+ };
+ /**
+ * Clean up.
+ */
+
+
+ MapBrowserEventHandler.prototype.disposeInternal = function () {
+ if (this.relayedListenerKey_) {
+ (0, _events.unlistenByKey)(this.relayedListenerKey_);
+ this.relayedListenerKey_ = null;
+ }
+
+ this.element_.removeEventListener(_EventType.default.TOUCHMOVE, this.boundHandleTouchMove_);
+
+ if (this.pointerdownListenerKey_) {
+ (0, _events.unlistenByKey)(this.pointerdownListenerKey_);
+ this.pointerdownListenerKey_ = null;
+ }
+
+ this.dragListenerKeys_.forEach(_events.unlistenByKey);
+ this.dragListenerKeys_.length = 0;
+ this.element_ = null;
+
+ _super.prototype.disposeInternal.call(this);
+ };
+
+ return MapBrowserEventHandler;
+}(_Target.default);
+
+var _default = MapBrowserEventHandler;
+exports.default = _default;
+},{"./events/Target.js":"../../../node_modules/ol/events/Target.js","./events/EventType.js":"../../../node_modules/ol/events/EventType.js","./MapBrowserEvent.js":"../../../node_modules/ol/MapBrowserEvent.js","./MapBrowserEventType.js":"../../../node_modules/ol/MapBrowserEventType.js","./pointer/EventType.js":"../../../node_modules/ol/pointer/EventType.js","./has.js":"../../../node_modules/ol/has.js","./events.js":"../../../node_modules/ol/events.js"}],"../../../node_modules/ol/MapEventType.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+/**
+ * @module ol/MapEventType
+ */
+
+/**
+ * @enum {string}
+ */
+var _default = {
+ /**
+ * Triggered after a map frame is rendered.
+ * @event module:ol/MapEvent~MapEvent#postrender
+ * @api
+ */
+ POSTRENDER: 'postrender',
+
+ /**
+ * Triggered when the map starts moving.
+ * @event module:ol/MapEvent~MapEvent#movestart
+ * @api
+ */
+ MOVESTART: 'movestart',
+
+ /**
+ * Triggered after the map is moved.
+ * @event module:ol/MapEvent~MapEvent#moveend
+ * @api
+ */
+ MOVEEND: 'moveend'
+};
+exports.default = _default;
+},{}],"../../../node_modules/ol/MapProperty.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+/**
+ * @module ol/MapProperty
+ */
+
+/**
+ * @enum {string}
+ */
+var _default = {
+ LAYERGROUP: 'layergroup',
+ SIZE: 'size',
+ TARGET: 'target',
+ VIEW: 'view'
+};
+exports.default = _default;
+},{}],"../../../node_modules/ol/structs/PriorityQueue.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = exports.DROP = void 0;
+
+var _asserts = require("../asserts.js");
+
+var _obj = require("../obj.js");
+
+/**
+ * @module ol/structs/PriorityQueue
+ */
+
+/**
+ * @type {number}
+ */
+var DROP = Infinity;
+/**
+ * @classdesc
+ * Priority queue.
+ *
+ * The implementation is inspired from the Closure Library's Heap class and
+ * Python's heapq module.
+ *
+ * See http://closure-library.googlecode.com/svn/docs/closure_goog_structs_heap.js.source.html
+ * and http://hg.python.org/cpython/file/2.7/Lib/heapq.py.
+ *
+ * @template T
+ */
+
+exports.DROP = DROP;
+
+var PriorityQueue =
+/** @class */
+function () {
+ /**
+ * @param {function(T): number} priorityFunction Priority function.
+ * @param {function(T): string} keyFunction Key function.
+ */
+ function PriorityQueue(priorityFunction, keyFunction) {
+ /**
+ * @type {function(T): number}
+ * @private
+ */
+ this.priorityFunction_ = priorityFunction;
+ /**
+ * @type {function(T): string}
+ * @private
+ */
+
+ this.keyFunction_ = keyFunction;
+ /**
+ * @type {Array<T>}
+ * @private
+ */
+
+ this.elements_ = [];
+ /**
+ * @type {Array<number>}
+ * @private
+ */
+
+ this.priorities_ = [];
+ /**
+ * @type {!Object<string, boolean>}
+ * @private
+ */
+
+ this.queuedElements_ = {};
+ }
+ /**
+ * FIXME empty description for jsdoc
+ */
+
+
+ PriorityQueue.prototype.clear = function () {
+ this.elements_.length = 0;
+ this.priorities_.length = 0;
+ (0, _obj.clear)(this.queuedElements_);
+ };
+ /**
+ * Remove and return the highest-priority element. O(log N).
+ * @return {T} Element.
+ */
+
+
+ PriorityQueue.prototype.dequeue = function () {
+ var elements = this.elements_;
+ var priorities = this.priorities_;
+ var element = elements[0];
+
+ if (elements.length == 1) {
+ elements.length = 0;
+ priorities.length = 0;
+ } else {
+ elements[0] = elements.pop();
+ priorities[0] = priorities.pop();
+ this.siftUp_(0);
+ }
+
+ var elementKey = this.keyFunction_(element);
+ delete this.queuedElements_[elementKey];
+ return element;
+ };
+ /**
+ * Enqueue an element. O(log N).
+ * @param {T} element Element.
+ * @return {boolean} The element was added to the queue.
+ */
+
+
+ PriorityQueue.prototype.enqueue = function (element) {
+ (0, _asserts.assert)(!(this.keyFunction_(element) in this.queuedElements_), 31); // Tried to enqueue an `element` that was already added to the queue
+
+ var priority = this.priorityFunction_(element);
+
+ if (priority != DROP) {
+ this.elements_.push(element);
+ this.priorities_.push(priority);
+ this.queuedElements_[this.keyFunction_(element)] = true;
+ this.siftDown_(0, this.elements_.length - 1);
+ return true;
+ }
+
+ return false;
+ };
+ /**
+ * @return {number} Count.
+ */
+
+
+ PriorityQueue.prototype.getCount = function () {
+ return this.elements_.length;
+ };
+ /**
+ * Gets the index of the left child of the node at the given index.
+ * @param {number} index The index of the node to get the left child for.
+ * @return {number} The index of the left child.
+ * @private
+ */
+
+
+ PriorityQueue.prototype.getLeftChildIndex_ = function (index) {
+ return index * 2 + 1;
+ };
+ /**
+ * Gets the index of the right child of the node at the given index.
+ * @param {number} index The index of the node to get the right child for.
+ * @return {number} The index of the right child.
+ * @private
+ */
+
+
+ PriorityQueue.prototype.getRightChildIndex_ = function (index) {
+ return index * 2 + 2;
+ };
+ /**
+ * Gets the index of the parent of the node at the given index.
+ * @param {number} index The index of the node to get the parent for.
+ * @return {number} The index of the parent.
+ * @private
+ */
+
+
+ PriorityQueue.prototype.getParentIndex_ = function (index) {
+ return index - 1 >> 1;
+ };
+ /**
+ * Make this a heap. O(N).
+ * @private
+ */
+
+
+ PriorityQueue.prototype.heapify_ = function () {
+ var i;
+
+ for (i = (this.elements_.length >> 1) - 1; i >= 0; i--) {
+ this.siftUp_(i);
+ }
+ };
+ /**
+ * @return {boolean} Is empty.
+ */
+
+
+ PriorityQueue.prototype.isEmpty = function () {
+ return this.elements_.length === 0;
+ };
+ /**
+ * @param {string} key Key.
+ * @return {boolean} Is key queued.
+ */
+
+
+ PriorityQueue.prototype.isKeyQueued = function (key) {
+ return key in this.queuedElements_;
+ };
+ /**
+ * @param {T} element Element.
+ * @return {boolean} Is queued.
+ */
+
+
+ PriorityQueue.prototype.isQueued = function (element) {
+ return this.isKeyQueued(this.keyFunction_(element));
+ };
+ /**
+ * @param {number} index The index of the node to move down.
+ * @private
+ */
+
+
+ PriorityQueue.prototype.siftUp_ = function (index) {
+ var elements = this.elements_;
+ var priorities = this.priorities_;
+ var count = elements.length;
+ var element = elements[index];
+ var priority = priorities[index];
+ var startIndex = index;
+
+ while (index < count >> 1) {
+ var lIndex = this.getLeftChildIndex_(index);
+ var rIndex = this.getRightChildIndex_(index);
+ var smallerChildIndex = rIndex < count && priorities[rIndex] < priorities[lIndex] ? rIndex : lIndex;
+ elements[index] = elements[smallerChildIndex];
+ priorities[index] = priorities[smallerChildIndex];
+ index = smallerChildIndex;
+ }
+
+ elements[index] = element;
+ priorities[index] = priority;
+ this.siftDown_(startIndex, index);
+ };
+ /**
+ * @param {number} startIndex The index of the root.
+ * @param {number} index The index of the node to move up.
+ * @private
+ */
+
+
+ PriorityQueue.prototype.siftDown_ = function (startIndex, index) {
+ var elements = this.elements_;
+ var priorities = this.priorities_;
+ var element = elements[index];
+ var priority = priorities[index];
+
+ while (index > startIndex) {
+ var parentIndex = this.getParentIndex_(index);
+
+ if (priorities[parentIndex] > priority) {
+ elements[index] = elements[parentIndex];
+ priorities[index] = priorities[parentIndex];
+ index = parentIndex;
+ } else {
+ break;
+ }
+ }
+
+ elements[index] = element;
+ priorities[index] = priority;
+ };
+ /**
+ * FIXME empty description for jsdoc
+ */
+
+
+ PriorityQueue.prototype.reprioritize = function () {
+ var priorityFunction = this.priorityFunction_;
+ var elements = this.elements_;
+ var priorities = this.priorities_;
+ var index = 0;
+ var n = elements.length;
+ var element, i, priority;
+
+ for (i = 0; i < n; ++i) {
+ element = elements[i];
+ priority = priorityFunction(element);
+
+ if (priority == DROP) {
+ delete this.queuedElements_[this.keyFunction_(element)];
+ } else {
+ priorities[index] = priority;
+ elements[index++] = element;
+ }
+ }
+
+ elements.length = index;
+ priorities.length = index;
+ this.heapify_();
+ };
+
+ return PriorityQueue;
+}();
+
+var _default = PriorityQueue;
+exports.default = _default;
+},{"../asserts.js":"../../../node_modules/ol/asserts.js","../obj.js":"../../../node_modules/ol/obj.js"}],"../../../node_modules/ol/TileQueue.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.getTilePriority = getTilePriority;
+exports.default = void 0;
+
+var _EventType = _interopRequireDefault(require("./events/EventType.js"));
+
+var _PriorityQueue = _interopRequireWildcard(require("./structs/PriorityQueue.js"));
+
+var _TileState = _interopRequireDefault(require("./TileState.js"));
+
+function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/TileQueue
+ */
+
+
+/**
+ * @typedef {function(import("./Tile.js").default, string, import("./coordinate.js").Coordinate, number): number} PriorityFunction
+ */
+var TileQueue =
+/** @class */
+function (_super) {
+ __extends(TileQueue, _super);
+ /**
+ * @param {PriorityFunction} tilePriorityFunction Tile priority function.
+ * @param {function(): ?} tileChangeCallback Function called on each tile change event.
+ */
+
+
+ function TileQueue(tilePriorityFunction, tileChangeCallback) {
+ var _this = _super.call(this,
+ /**
+ * @param {Array} element Element.
+ * @return {number} Priority.
+ */
+ function (element) {
+ return tilePriorityFunction.apply(null, element);
+ },
+ /**
+ * @param {Array} element Element.
+ * @return {string} Key.
+ */
+ function (element) {
+ return (
+ /** @type {import("./Tile.js").default} */
+ element[0].getKey()
+ );
+ }) || this;
+ /** @private */
+
+
+ _this.boundHandleTileChange_ = _this.handleTileChange.bind(_this);
+ /**
+ * @private
+ * @type {function(): ?}
+ */
+
+ _this.tileChangeCallback_ = tileChangeCallback;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.tilesLoading_ = 0;
+ /**
+ * @private
+ * @type {!Object<string,boolean>}
+ */
+
+ _this.tilesLoadingKeys_ = {};
+ return _this;
+ }
+ /**
+ * @param {Array} element Element.
+ * @return {boolean} The element was added to the queue.
+ */
+
+
+ TileQueue.prototype.enqueue = function (element) {
+ var added = _super.prototype.enqueue.call(this, element);
+
+ if (added) {
+ var tile = element[0];
+ tile.addEventListener(_EventType.default.CHANGE, this.boundHandleTileChange_);
+ }
+
+ return added;
+ };
+ /**
+ * @return {number} Number of tiles loading.
+ */
+
+
+ TileQueue.prototype.getTilesLoading = function () {
+ return this.tilesLoading_;
+ };
+ /**
+ * @param {import("./events/Event.js").default} event Event.
+ * @protected
+ */
+
+
+ TileQueue.prototype.handleTileChange = function (event) {
+ var tile =
+ /** @type {import("./Tile.js").default} */
+ event.target;
+ var state = tile.getState();
+
+ if (tile.hifi && state === _TileState.default.LOADED || state === _TileState.default.ERROR || state === _TileState.default.EMPTY) {
+ tile.removeEventListener(_EventType.default.CHANGE, this.boundHandleTileChange_);
+ var tileKey = tile.getKey();
+
+ if (tileKey in this.tilesLoadingKeys_) {
+ delete this.tilesLoadingKeys_[tileKey];
+ --this.tilesLoading_;
+ }
+
+ this.tileChangeCallback_();
+ }
+ };
+ /**
+ * @param {number} maxTotalLoading Maximum number tiles to load simultaneously.
+ * @param {number} maxNewLoads Maximum number of new tiles to load.
+ */
+
+
+ TileQueue.prototype.loadMoreTiles = function (maxTotalLoading, maxNewLoads) {
+ var newLoads = 0;
+ var state, tile, tileKey;
+
+ while (this.tilesLoading_ < maxTotalLoading && newLoads < maxNewLoads && this.getCount() > 0) {
+ tile =
+ /** @type {import("./Tile.js").default} */
+ this.dequeue()[0];
+ tileKey = tile.getKey();
+ state = tile.getState();
+
+ if (state === _TileState.default.IDLE && !(tileKey in this.tilesLoadingKeys_)) {
+ this.tilesLoadingKeys_[tileKey] = true;
+ ++this.tilesLoading_;
+ ++newLoads;
+ tile.load();
+ }
+ }
+ };
+
+ return TileQueue;
+}(_PriorityQueue.default);
+
+var _default = TileQueue;
+/**
+ * @param {import('./PluggableMap.js').FrameState} frameState Frame state.
+ * @param {import("./Tile.js").default} tile Tile.
+ * @param {string} tileSourceKey Tile source key.
+ * @param {import("./coordinate.js").Coordinate} tileCenter Tile center.
+ * @param {number} tileResolution Tile resolution.
+ * @return {number} Tile priority.
+ */
+
+exports.default = _default;
+
+function getTilePriority(frameState, tile, tileSourceKey, tileCenter, tileResolution) {
+ // Filter out tiles at higher zoom levels than the current zoom level, or that
+ // are outside the visible extent.
+ if (!frameState || !(tileSourceKey in frameState.wantedTiles)) {
+ return _PriorityQueue.DROP;
+ }
+
+ if (!frameState.wantedTiles[tileSourceKey][tile.getKey()]) {
+ return _PriorityQueue.DROP;
+ } // Prioritize the highest zoom level tiles closest to the focus.
+ // Tiles at higher zoom levels are prioritized using Math.log(tileResolution).
+ // Within a zoom level, tiles are prioritized by the distance in pixels between
+ // the center of the tile and the center of the viewport. The factor of 65536
+ // means that the prioritization should behave as desired for tiles up to
+ // 65536 * Math.log(2) = 45426 pixels from the focus.
+
+
+ var center = frameState.viewState.center;
+ var deltaX = tileCenter[0] - center[0];
+ var deltaY = tileCenter[1] - center[1];
+ return 65536 * Math.log(tileResolution) + Math.sqrt(deltaX * deltaX + deltaY * deltaY) / tileResolution;
+}
+},{"./events/EventType.js":"../../../node_modules/ol/events/EventType.js","./structs/PriorityQueue.js":"../../../node_modules/ol/structs/PriorityQueue.js","./TileState.js":"../../../node_modules/ol/TileState.js"}],"../../../node_modules/ol/ViewProperty.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+/**
+ * @module ol/ViewProperty
+ */
+
+/**
+ * @enum {string}
+ */
+var _default = {
+ CENTER: 'center',
+ RESOLUTION: 'resolution',
+ ROTATION: 'rotation'
+};
+exports.default = _default;
+},{}],"../../../node_modules/ol/tilegrid/common.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.DEFAULT_TILE_SIZE = exports.DEFAULT_MAX_ZOOM = void 0;
+
+/**
+ * @module ol/tilegrid/common
+ */
+
+/**
+ * Default maximum zoom for default tile grids.
+ * @type {number}
+ */
+var DEFAULT_MAX_ZOOM = 42;
+/**
+ * Default tile size.
+ * @type {number}
+ */
+
+exports.DEFAULT_MAX_ZOOM = DEFAULT_MAX_ZOOM;
+var DEFAULT_TILE_SIZE = 256;
+exports.DEFAULT_TILE_SIZE = DEFAULT_TILE_SIZE;
+},{}],"../../../node_modules/ol/centerconstraint.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.createExtent = createExtent;
+exports.none = none;
+
+var _math = require("./math.js");
+
+/**
+ * @module ol/centerconstraint
+ */
+
+/**
+ * @typedef {function((import("./coordinate.js").Coordinate|undefined), number, import("./size.js").Size, boolean=): (import("./coordinate.js").Coordinate|undefined)} Type
+ */
+
+/**
+ * @param {import("./extent.js").Extent} extent Extent.
+ * @param {boolean} onlyCenter If true, the constraint will only apply to the view center.
+ * @param {boolean} smooth If true, the view will be able to go slightly out of the given extent
+ * (only during interaction and animation).
+ * @return {Type} The constraint.
+ */
+function createExtent(extent, onlyCenter, smooth) {
+ return (
+ /**
+ * @param {import("./coordinate.js").Coordinate|undefined} center Center.
+ * @param {number} resolution Resolution.
+ * @param {import("./size.js").Size} size Viewport size; unused if `onlyCenter` was specified.
+ * @param {boolean=} opt_isMoving True if an interaction or animation is in progress.
+ * @return {import("./coordinate.js").Coordinate|undefined} Center.
+ */
+ function (center, resolution, size, opt_isMoving) {
+ if (center) {
+ var viewWidth = onlyCenter ? 0 : size[0] * resolution;
+ var viewHeight = onlyCenter ? 0 : size[1] * resolution;
+ var minX = extent[0] + viewWidth / 2;
+ var maxX = extent[2] - viewWidth / 2;
+ var minY = extent[1] + viewHeight / 2;
+ var maxY = extent[3] - viewHeight / 2; // note: when zooming out of bounds, min and max values for x and y may
+ // end up inverted (min > max); this has to be accounted for
+
+ if (minX > maxX) {
+ minX = (maxX + minX) / 2;
+ maxX = minX;
+ }
+
+ if (minY > maxY) {
+ minY = (maxY + minY) / 2;
+ maxY = minY;
+ }
+
+ var x = (0, _math.clamp)(center[0], minX, maxX);
+ var y = (0, _math.clamp)(center[1], minY, maxY);
+ var ratio = 30 * resolution; // during an interaction, allow some overscroll
+
+ if (opt_isMoving && smooth) {
+ x += -ratio * Math.log(1 + Math.max(0, minX - center[0]) / ratio) + ratio * Math.log(1 + Math.max(0, center[0] - maxX) / ratio);
+ y += -ratio * Math.log(1 + Math.max(0, minY - center[1]) / ratio) + ratio * Math.log(1 + Math.max(0, center[1] - maxY) / ratio);
+ }
+
+ return [x, y];
+ } else {
+ return undefined;
+ }
+ }
+ );
+}
+/**
+ * @param {import("./coordinate.js").Coordinate=} center Center.
+ * @return {import("./coordinate.js").Coordinate|undefined} Center.
+ */
+
+
+function none(center) {
+ return center;
+}
+},{"./math.js":"../../../node_modules/ol/math.js"}],"../../../node_modules/ol/resolutionconstraint.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.createSnapToResolutions = createSnapToResolutions;
+exports.createSnapToPower = createSnapToPower;
+exports.createMinMaxResolution = createMinMaxResolution;
+
+var _math = require("./math.js");
+
+var _extent = require("./extent.js");
+
+var _array = require("./array.js");
+
+/**
+ * @module ol/resolutionconstraint
+ */
+
+/**
+ * @typedef {function((number|undefined), number, import("./size.js").Size, boolean=): (number|undefined)} Type
+ */
+
+/**
+ * Returns a modified resolution taking into account the viewport size and maximum
+ * allowed extent.
+ * @param {number} resolution Resolution
+ * @param {import("./extent.js").Extent=} maxExtent Maximum allowed extent.
+ * @param {import("./size.js").Size} viewportSize Viewport size.
+ * @param {boolean} showFullExtent Whether to show the full extent.
+ * @return {number} Capped resolution.
+ */
+function getViewportClampedResolution(resolution, maxExtent, viewportSize, showFullExtent) {
+ var xResolution = (0, _extent.getWidth)(maxExtent) / viewportSize[0];
+ var yResolution = (0, _extent.getHeight)(maxExtent) / viewportSize[1];
+
+ if (showFullExtent) {
+ return Math.min(resolution, Math.max(xResolution, yResolution));
+ }
+
+ return Math.min(resolution, Math.min(xResolution, yResolution));
+}
+/**
+ * Returns a modified resolution to be between maxResolution and minResolution while
+ * still allowing the value to be slightly out of bounds.
+ * Note: the computation is based on the logarithm function (ln):
+ * - at 1, ln(x) is 0
+ * - above 1, ln(x) keeps increasing but at a much slower pace than x
+ * The final result is clamped to prevent getting too far away from bounds.
+ * @param {number} resolution Resolution.
+ * @param {number} maxResolution Max resolution.
+ * @param {number} minResolution Min resolution.
+ * @return {number} Smoothed resolution.
+ */
+
+
+function getSmoothClampedResolution(resolution, maxResolution, minResolution) {
+ var result = Math.min(resolution, maxResolution);
+ var ratio = 50;
+ result *= Math.log(1 + ratio * Math.max(0, resolution / maxResolution - 1)) / ratio + 1;
+
+ if (minResolution) {
+ result = Math.max(result, minResolution);
+ result /= Math.log(1 + ratio * Math.max(0, minResolution / resolution - 1)) / ratio + 1;
+ }
+
+ return (0, _math.clamp)(result, minResolution / 2, maxResolution * 2);
+}
+/**
+ * @param {Array<number>} resolutions Resolutions.
+ * @param {boolean=} opt_smooth If true, the view will be able to slightly exceed resolution limits. Default: true.
+ * @param {import("./extent.js").Extent=} opt_maxExtent Maximum allowed extent.
+ * @param {boolean=} opt_showFullExtent If true, allows us to show the full extent. Default: false.
+ * @return {Type} Zoom function.
+ */
+
+
+function createSnapToResolutions(resolutions, opt_smooth, opt_maxExtent, opt_showFullExtent) {
+ return (
+ /**
+ * @param {number|undefined} resolution Resolution.
+ * @param {number} direction Direction.
+ * @param {import("./size.js").Size} size Viewport size.
+ * @param {boolean=} opt_isMoving True if an interaction or animation is in progress.
+ * @return {number|undefined} Resolution.
+ */
+ function (resolution, direction, size, opt_isMoving) {
+ if (resolution !== undefined) {
+ var maxResolution = resolutions[0];
+ var minResolution = resolutions[resolutions.length - 1];
+ var cappedMaxRes = opt_maxExtent ? getViewportClampedResolution(maxResolution, opt_maxExtent, size, opt_showFullExtent) : maxResolution; // during interacting or animating, allow intermediary values
+
+ if (opt_isMoving) {
+ var smooth = opt_smooth !== undefined ? opt_smooth : true;
+
+ if (!smooth) {
+ return (0, _math.clamp)(resolution, minResolution, cappedMaxRes);
+ }
+
+ return getSmoothClampedResolution(resolution, cappedMaxRes, minResolution);
+ }
+
+ var capped = Math.min(cappedMaxRes, resolution);
+ var z = Math.floor((0, _array.linearFindNearest)(resolutions, capped, direction));
+
+ if (resolutions[z] > cappedMaxRes && z < resolutions.length - 1) {
+ return resolutions[z + 1];
+ }
+
+ return resolutions[z];
+ } else {
+ return undefined;
+ }
+ }
+ );
+}
+/**
+ * @param {number} power Power.
+ * @param {number} maxResolution Maximum resolution.
+ * @param {number=} opt_minResolution Minimum resolution.
+ * @param {boolean=} opt_smooth If true, the view will be able to slightly exceed resolution limits. Default: true.
+ * @param {import("./extent.js").Extent=} opt_maxExtent Maximum allowed extent.
+ * @param {boolean=} opt_showFullExtent If true, allows us to show the full extent. Default: false.
+ * @return {Type} Zoom function.
+ */
+
+
+function createSnapToPower(power, maxResolution, opt_minResolution, opt_smooth, opt_maxExtent, opt_showFullExtent) {
+ return (
+ /**
+ * @param {number|undefined} resolution Resolution.
+ * @param {number} direction Direction.
+ * @param {import("./size.js").Size} size Viewport size.
+ * @param {boolean=} opt_isMoving True if an interaction or animation is in progress.
+ * @return {number|undefined} Resolution.
+ */
+ function (resolution, direction, size, opt_isMoving) {
+ if (resolution !== undefined) {
+ var cappedMaxRes = opt_maxExtent ? getViewportClampedResolution(maxResolution, opt_maxExtent, size, opt_showFullExtent) : maxResolution;
+ var minResolution = opt_minResolution !== undefined ? opt_minResolution : 0; // during interacting or animating, allow intermediary values
+
+ if (opt_isMoving) {
+ var smooth = opt_smooth !== undefined ? opt_smooth : true;
+
+ if (!smooth) {
+ return (0, _math.clamp)(resolution, minResolution, cappedMaxRes);
+ }
+
+ return getSmoothClampedResolution(resolution, cappedMaxRes, minResolution);
+ }
+
+ var tolerance = 1e-9;
+ var minZoomLevel = Math.ceil(Math.log(maxResolution / cappedMaxRes) / Math.log(power) - tolerance);
+ var offset = -direction * (0.5 - tolerance) + 0.5;
+ var capped = Math.min(cappedMaxRes, resolution);
+ var cappedZoomLevel = Math.floor(Math.log(maxResolution / capped) / Math.log(power) + offset);
+ var zoomLevel = Math.max(minZoomLevel, cappedZoomLevel);
+ var newResolution = maxResolution / Math.pow(power, zoomLevel);
+ return (0, _math.clamp)(newResolution, minResolution, cappedMaxRes);
+ } else {
+ return undefined;
+ }
+ }
+ );
+}
+/**
+ * @param {number} maxResolution Max resolution.
+ * @param {number} minResolution Min resolution.
+ * @param {boolean=} opt_smooth If true, the view will be able to slightly exceed resolution limits. Default: true.
+ * @param {import("./extent.js").Extent=} opt_maxExtent Maximum allowed extent.
+ * @param {boolean=} opt_showFullExtent If true, allows us to show the full extent. Default: false.
+ * @return {Type} Zoom function.
+ */
+
+
+function createMinMaxResolution(maxResolution, minResolution, opt_smooth, opt_maxExtent, opt_showFullExtent) {
+ return (
+ /**
+ * @param {number|undefined} resolution Resolution.
+ * @param {number} direction Direction.
+ * @param {import("./size.js").Size} size Viewport size.
+ * @param {boolean=} opt_isMoving True if an interaction or animation is in progress.
+ * @return {number|undefined} Resolution.
+ */
+ function (resolution, direction, size, opt_isMoving) {
+ if (resolution !== undefined) {
+ var cappedMaxRes = opt_maxExtent ? getViewportClampedResolution(maxResolution, opt_maxExtent, size, opt_showFullExtent) : maxResolution;
+ var smooth = opt_smooth !== undefined ? opt_smooth : true;
+
+ if (!smooth || !opt_isMoving) {
+ return (0, _math.clamp)(resolution, minResolution, cappedMaxRes);
+ }
+
+ return getSmoothClampedResolution(resolution, cappedMaxRes, minResolution);
+ } else {
+ return undefined;
+ }
+ }
+ );
+}
+},{"./math.js":"../../../node_modules/ol/math.js","./extent.js":"../../../node_modules/ol/extent.js","./array.js":"../../../node_modules/ol/array.js"}],"../../../node_modules/ol/rotationconstraint.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.disable = disable;
+exports.none = none;
+exports.createSnapToN = createSnapToN;
+exports.createSnapToZero = createSnapToZero;
+
+var _math = require("./math.js");
+
+/**
+ * @module ol/rotationconstraint
+ */
+
+/**
+ * @typedef {function((number|undefined), boolean=): (number|undefined)} Type
+ */
+
+/**
+ * @param {number|undefined} rotation Rotation.
+ * @return {number|undefined} Rotation.
+ */
+function disable(rotation) {
+ if (rotation !== undefined) {
+ return 0;
+ } else {
+ return undefined;
+ }
+}
+/**
+ * @param {number|undefined} rotation Rotation.
+ * @return {number|undefined} Rotation.
+ */
+
+
+function none(rotation) {
+ if (rotation !== undefined) {
+ return rotation;
+ } else {
+ return undefined;
+ }
+}
+/**
+ * @param {number} n N.
+ * @return {Type} Rotation constraint.
+ */
+
+
+function createSnapToN(n) {
+ var theta = 2 * Math.PI / n;
+ return (
+ /**
+ * @param {number|undefined} rotation Rotation.
+ * @param {boolean=} opt_isMoving True if an interaction or animation is in progress.
+ * @return {number|undefined} Rotation.
+ */
+ function (rotation, opt_isMoving) {
+ if (opt_isMoving) {
+ return rotation;
+ }
+
+ if (rotation !== undefined) {
+ rotation = Math.floor(rotation / theta + 0.5) * theta;
+ return rotation;
+ } else {
+ return undefined;
+ }
+ }
+ );
+}
+/**
+ * @param {number=} opt_tolerance Tolerance.
+ * @return {Type} Rotation constraint.
+ */
+
+
+function createSnapToZero(opt_tolerance) {
+ var tolerance = opt_tolerance || (0, _math.toRadians)(5);
+ return (
+ /**
+ * @param {number|undefined} rotation Rotation.
+ * @param {boolean=} opt_isMoving True if an interaction or animation is in progress.
+ * @return {number|undefined} Rotation.
+ */
+ function (rotation, opt_isMoving) {
+ if (opt_isMoving) {
+ return rotation;
+ }
+
+ if (rotation !== undefined) {
+ if (Math.abs(rotation) <= tolerance) {
+ return 0;
+ } else {
+ return rotation;
+ }
+ } else {
+ return undefined;
+ }
+ }
+ );
+}
+},{"./math.js":"../../../node_modules/ol/math.js"}],"../../../node_modules/ol/View.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.createCenterConstraint = createCenterConstraint;
+exports.createResolutionConstraint = createResolutionConstraint;
+exports.createRotationConstraint = createRotationConstraint;
+exports.isNoopAnimation = isNoopAnimation;
+exports.default = void 0;
+
+var _Object = _interopRequireDefault(require("./Object.js"));
+
+var _GeometryType = _interopRequireDefault(require("./geom/GeometryType.js"));
+
+var _Units = _interopRequireDefault(require("./proj/Units.js"));
+
+var _ViewHint = _interopRequireDefault(require("./ViewHint.js"));
+
+var _ViewProperty = _interopRequireDefault(require("./ViewProperty.js"));
+
+var _common = require("./tilegrid/common.js");
+
+var _proj = require("./proj.js");
+
+var _functions = require("./functions.js");
+
+var _coordinate = require("./coordinate.js");
+
+var _asserts = require("./asserts.js");
+
+var _obj = require("./obj.js");
+
+var _centerconstraint = require("./centerconstraint.js");
+
+var _math = require("./math.js");
+
+var _resolutionconstraint = require("./resolutionconstraint.js");
+
+var _rotationconstraint = require("./rotationconstraint.js");
+
+var _easing = require("./easing.js");
+
+var _extent = require("./extent.js");
+
+var _array = require("./array.js");
+
+var _Polygon = require("./geom/Polygon.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/View
+ */
+
+
+/**
+ * An animation configuration
+ *
+ * @typedef {Object} Animation
+ * @property {import("./coordinate.js").Coordinate} [sourceCenter]
+ * @property {import("./coordinate.js").Coordinate} [targetCenter]
+ * @property {number} [sourceResolution]
+ * @property {number} [targetResolution]
+ * @property {number} [sourceRotation]
+ * @property {number} [targetRotation]
+ * @property {import("./coordinate.js").Coordinate} [anchor]
+ * @property {number} start
+ * @property {number} duration
+ * @property {boolean} complete
+ * @property {function(number):number} easing
+ * @property {function(boolean):void} callback
+ */
+
+/**
+ * @typedef {Object} Constraints
+ * @property {import("./centerconstraint.js").Type} center
+ * @property {import("./resolutionconstraint.js").Type} resolution
+ * @property {import("./rotationconstraint.js").Type} rotation
+ */
+
+/**
+ * @typedef {Object} FitOptions
+ * @property {import("./size.js").Size} [size] The size in pixels of the box to fit
+ * the extent into. Default is the current size of the first map in the DOM that
+ * uses this view, or `[100, 100]` if no such map is found.
+ * @property {!Array<number>} [padding=[0, 0, 0, 0]] Padding (in pixels) to be
+ * cleared inside the view. Values in the array are top, right, bottom and left
+ * padding.
+ * @property {boolean} [nearest=false] If the view `constrainResolution` option is `true`,
+ * get the nearest extent instead of the closest that actually fits the view.
+ * @property {number} [minResolution=0] Minimum resolution that we zoom to.
+ * @property {number} [maxZoom] Maximum zoom level that we zoom to. If
+ * `minResolution` is given, this property is ignored.
+ * @property {number} [duration] The duration of the animation in milliseconds.
+ * By default, there is no animation to the target extent.
+ * @property {function(number):number} [easing] The easing function used during
+ * the animation (defaults to {@link module:ol/easing~inAndOut}).
+ * The function will be called for each frame with a number representing a
+ * fraction of the animation's duration. The function should return a number
+ * between 0 and 1 representing the progress toward the destination state.
+ * @property {function(boolean):void} [callback] Function called when the view is in
+ * its final position. The callback will be called with `true` if the animation
+ * series completed on its own or `false` if it was cancelled.
+ */
+
+/**
+ * @typedef {Object} ViewOptions
+ * @property {import("./coordinate.js").Coordinate} [center] The initial center for
+ * the view. If a user projection is not set, the coordinate system for the center is
+ * specified with the `projection` option. Layer sources will not be fetched if this
+ * is not set, but the center can be set later with {@link #setCenter}.
+ * @property {boolean|number} [constrainRotation=true] Rotation constraint.
+ * `false` means no constraint. `true` means no constraint, but snap to zero
+ * near zero. A number constrains the rotation to that number of values. For
+ * example, `4` will constrain the rotation to 0, 90, 180, and 270 degrees.
+ * @property {boolean} [enableRotation=true] Enable rotation.
+ * If `false`, a rotation constraint that always sets the rotation to zero is
+ * used. The `constrainRotation` option has no effect if `enableRotation` is
+ * `false`.
+ * @property {import("./extent.js").Extent} [extent] The extent that constrains the
+ * view, in other words, nothing outside of this extent can be visible on the map.
+ * @property {boolean} [constrainOnlyCenter=false] If true, the extent
+ * constraint will only apply to the view center and not the whole extent.
+ * @property {boolean} [smoothExtentConstraint=true] If true, the extent
+ * constraint will be applied smoothly, i.e. allow the view to go slightly outside
+ * of the given `extent`.
+ * @property {number} [maxResolution] The maximum resolution used to determine
+ * the resolution constraint. It is used together with `minResolution` (or
+ * `maxZoom`) and `zoomFactor`. If unspecified it is calculated in such a way
+ * that the projection's validity extent fits in a 256x256 px tile. If the
+ * projection is Spherical Mercator (the default) then `maxResolution` defaults
+ * to `40075016.68557849 / 256 = 156543.03392804097`.
+ * @property {number} [minResolution] The minimum resolution used to determine
+ * the resolution constraint. It is used together with `maxResolution` (or
+ * `minZoom`) and `zoomFactor`. If unspecified it is calculated assuming 29
+ * zoom levels (with a factor of 2). If the projection is Spherical Mercator
+ * (the default) then `minResolution` defaults to
+ * `40075016.68557849 / 256 / Math.pow(2, 28) = 0.0005831682455839253`.
+ * @property {number} [maxZoom=28] The maximum zoom level used to determine the
+ * resolution constraint. It is used together with `minZoom` (or
+ * `maxResolution`) and `zoomFactor`. Note that if `minResolution` is also
+ * provided, it is given precedence over `maxZoom`.
+ * @property {number} [minZoom=0] The minimum zoom level used to determine the
+ * resolution constraint. It is used together with `maxZoom` (or
+ * `minResolution`) and `zoomFactor`. Note that if `maxResolution` is also
+ * provided, it is given precedence over `minZoom`.
+ * @property {boolean} [multiWorld=false] If `false` the view is constrained so
+ * only one world is visible, and you cannot pan off the edge. If `true` the map
+ * may show multiple worlds at low zoom levels. Only used if the `projection` is
+ * global. Note that if `extent` is also provided it is given precedence.
+ * @property {boolean} [constrainResolution=false] If true, the view will always
+ * animate to the closest zoom level after an interaction; false means
+ * intermediary zoom levels are allowed.
+ * @property {boolean} [smoothResolutionConstraint=true] If true, the resolution
+ * min/max values will be applied smoothly, i. e. allow the view to exceed slightly
+ * the given resolution or zoom bounds.
+ * @property {boolean} [showFullExtent=false] Allow the view to be zoomed out to
+ * show the full configured extent. By default, when a view is configured with an
+ * extent, users will not be able to zoom out so the viewport exceeds the extent in
+ * either dimension. This means the full extent may not be visible if the viewport
+ * is taller or wider than the aspect ratio of the configured extent. If
+ * showFullExtent is true, the user will be able to zoom out so that the viewport
+ * exceeds the height or width of the configured extent, but not both, allowing the
+ * full extent to be shown.
+ * @property {import("./proj.js").ProjectionLike} [projection='EPSG:3857'] The
+ * projection. The default is Spherical Mercator.
+ * @property {number} [resolution] The initial resolution for the view. The
+ * units are `projection` units per pixel (e.g. meters per pixel). An
+ * alternative to setting this is to set `zoom`. Layer sources will not be
+ * fetched if neither this nor `zoom` are defined, but they can be set later
+ * with {@link #setZoom} or {@link #setResolution}.
+ * @property {Array<number>} [resolutions] Resolutions to determine the
+ * resolution constraint. If set the `maxResolution`, `minResolution`,
+ * `minZoom`, `maxZoom`, and `zoomFactor` options are ignored.
+ * @property {number} [rotation=0] The initial rotation for the view in radians
+ * (positive rotation clockwise, 0 means North).
+ * @property {number} [zoom] Only used if `resolution` is not defined. Zoom
+ * level used to calculate the initial resolution for the view.
+ * @property {number} [zoomFactor=2] The zoom factor used to compute the
+ * corresponding resolution.
+ */
+
+/**
+ * @typedef {Object} AnimationOptions
+ * @property {import("./coordinate.js").Coordinate} [center] The center of the view at the end of
+ * the animation.
+ * @property {number} [zoom] The zoom level of the view at the end of the
+ * animation. This takes precedence over `resolution`.
+ * @property {number} [resolution] The resolution of the view at the end
+ * of the animation. If `zoom` is also provided, this option will be ignored.
+ * @property {number} [rotation] The rotation of the view at the end of
+ * the animation.
+ * @property {import("./coordinate.js").Coordinate} [anchor] Optional anchor to remain fixed
+ * during a rotation or resolution animation.
+ * @property {number} [duration=1000] The duration of the animation in milliseconds.
+ * @property {function(number):number} [easing] The easing function used
+ * during the animation (defaults to {@link module:ol/easing~inAndOut}).
+ * The function will be called for each frame with a number representing a
+ * fraction of the animation's duration. The function should return a number
+ * between 0 and 1 representing the progress toward the destination state.
+ */
+
+/**
+ * @typedef {Object} State
+ * @property {import("./coordinate.js").Coordinate} center
+ * @property {import("./proj/Projection.js").default} projection
+ * @property {number} resolution
+ * @property {number} rotation
+ * @property {number} zoom
+ */
+
+/**
+ * Default min zoom level for the map view.
+ * @type {number}
+ */
+var DEFAULT_MIN_ZOOM = 0;
+/**
+ * @classdesc
+ * A View object represents a simple 2D view of the map.
+ *
+ * This is the object to act upon to change the center, resolution,
+ * and rotation of the map.
+ *
+ * A View has a `projection`. The projection determines the
+ * coordinate system of the center, and its units determine the units of the
+ * resolution (projection units per pixel). The default projection is
+ * Spherical Mercator (EPSG:3857).
+ *
+ * ### The view states
+ *
+ * A View is determined by three states: `center`, `resolution`,
+ * and `rotation`. Each state has a corresponding getter and setter, e.g.
+ * `getCenter` and `setCenter` for the `center` state.
+ *
+ * The `zoom` state is actually not saved on the view: all computations
+ * internally use the `resolution` state. Still, the `setZoom` and `getZoom`
+ * methods are available, as well as `getResolutionForZoom` and
+ * `getZoomForResolution` to switch from one system to the other.
+ *
+ * ### The constraints
+ *
+ * `setCenter`, `setResolution` and `setRotation` can be used to change the
+ * states of the view, but any constraint defined in the constructor will
+ * be applied along the way.
+ *
+ * A View object can have a *resolution constraint*, a *rotation constraint*
+ * and a *center constraint*.
+ *
+ * The *resolution constraint* typically restricts min/max values and
+ * snaps to specific resolutions. It is determined by the following
+ * options: `resolutions`, `maxResolution`, `maxZoom` and `zoomFactor`.
+ * If `resolutions` is set, the other three options are ignored. See
+ * documentation for each option for more information. By default, the view
+ * only has a min/max restriction and allow intermediary zoom levels when
+ * pinch-zooming for example.
+ *
+ * The *rotation constraint* snaps to specific angles. It is determined
+ * by the following options: `enableRotation` and `constrainRotation`.
+ * By default rotation is allowed and its value is snapped to zero when approaching the
+ * horizontal.
+ *
+ * The *center constraint* is determined by the `extent` option. By
+ * default the view center is not constrained at all.
+ *
+ * ### Changing the view state
+ *
+ * It is important to note that `setZoom`, `setResolution`, `setCenter` and
+ * `setRotation` are subject to the above mentioned constraints. As such, it
+ * may sometimes not be possible to know in advance the resulting state of the
+ * View. For example, calling `setResolution(10)` does not guarantee that
+ * `getResolution()` will return `10`.
+ *
+ * A consequence of this is that, when applying a delta on the view state, one
+ * should use `adjustCenter`, `adjustRotation`, `adjustZoom` and `adjustResolution`
+ * rather than the corresponding setters. This will let view do its internal
+ * computations. Besides, the `adjust*` methods also take an `opt_anchor`
+ * argument which allows specifying an origin for the transformation.
+ *
+ * ### Interacting with the view
+ *
+ * View constraints are usually only applied when the view is *at rest*, meaning that
+ * no interaction or animation is ongoing. As such, if the user puts the view in a
+ * state that is not equivalent to a constrained one (e.g. rotating the view when
+ * the snap angle is 0), an animation will be triggered at the interaction end to
+ * put back the view to a stable state;
+ *
+ * @api
+ */
+
+var View =
+/** @class */
+function (_super) {
+ __extends(View, _super);
+ /**
+ * @param {ViewOptions=} opt_options View options.
+ */
+
+
+ function View(opt_options) {
+ var _this = _super.call(this) || this;
+
+ var options = (0, _obj.assign)({}, opt_options);
+ /**
+ * @private
+ * @type {Array<number>}
+ */
+
+ _this.hints_ = [0, 0];
+ /**
+ * @private
+ * @type {Array<Array<Animation>>}
+ */
+
+ _this.animations_ = [];
+ /**
+ * @private
+ * @type {number|undefined}
+ */
+
+ _this.updateAnimationKey_;
+ /**
+ * @private
+ * @const
+ * @type {import("./proj/Projection.js").default}
+ */
+
+ _this.projection_ = (0, _proj.createProjection)(options.projection, 'EPSG:3857');
+ /**
+ * @private
+ * @type {import("./size.js").Size}
+ */
+
+ _this.viewportSize_ = [100, 100];
+ /**
+ * @private
+ * @type {import("./coordinate.js").Coordinate|undefined}
+ */
+
+ _this.targetCenter_ = null;
+ /**
+ * @private
+ * @type {number|undefined}
+ */
+
+ _this.targetResolution_;
+ /**
+ * @private
+ * @type {number|undefined}
+ */
+
+ _this.targetRotation_;
+ /**
+ * @private
+ * @type {import("./coordinate.js").Coordinate|undefined}
+ */
+
+ _this.cancelAnchor_ = undefined;
+
+ if (options.center) {
+ options.center = (0, _proj.fromUserCoordinate)(options.center, _this.projection_);
+ }
+
+ if (options.extent) {
+ options.extent = (0, _proj.fromUserExtent)(options.extent, _this.projection_);
+ }
+
+ _this.applyOptions_(options);
+
+ return _this;
+ }
+ /**
+ * Set up the view with the given options.
+ * @param {ViewOptions} options View options.
+ */
+
+
+ View.prototype.applyOptions_ = function (options) {
+ /**
+ * @type {Object<string, *>}
+ */
+ var properties = {};
+ var resolutionConstraintInfo = createResolutionConstraint(options);
+ /**
+ * @private
+ * @type {number}
+ */
+
+ this.maxResolution_ = resolutionConstraintInfo.maxResolution;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ this.minResolution_ = resolutionConstraintInfo.minResolution;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ this.zoomFactor_ = resolutionConstraintInfo.zoomFactor;
+ /**
+ * @private
+ * @type {Array<number>|undefined}
+ */
+
+ this.resolutions_ = options.resolutions;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ this.minZoom_ = resolutionConstraintInfo.minZoom;
+ var centerConstraint = createCenterConstraint(options);
+ var resolutionConstraint = resolutionConstraintInfo.constraint;
+ var rotationConstraint = createRotationConstraint(options);
+ /**
+ * @private
+ * @type {Constraints}
+ */
+
+ this.constraints_ = {
+ center: centerConstraint,
+ resolution: resolutionConstraint,
+ rotation: rotationConstraint
+ };
+ this.setRotation(options.rotation !== undefined ? options.rotation : 0);
+ this.setCenterInternal(options.center !== undefined ? options.center : null);
+
+ if (options.resolution !== undefined) {
+ this.setResolution(options.resolution);
+ } else if (options.zoom !== undefined) {
+ this.setZoom(options.zoom);
+ }
+
+ this.setProperties(properties);
+ /**
+ * @private
+ * @type {ViewOptions}
+ */
+
+ this.options_ = options;
+ };
+ /**
+ * Get an updated version of the view options used to construct the view. The
+ * current resolution (or zoom), center, and rotation are applied to any stored
+ * options. The provided options can be used to apply new min/max zoom or
+ * resolution limits.
+ * @param {ViewOptions} newOptions New options to be applied.
+ * @return {ViewOptions} New options updated with the current view state.
+ */
+
+
+ View.prototype.getUpdatedOptions_ = function (newOptions) {
+ var options = (0, _obj.assign)({}, this.options_); // preserve resolution (or zoom)
+
+ if (options.resolution !== undefined) {
+ options.resolution = this.getResolution();
+ } else {
+ options.zoom = this.getZoom();
+ } // preserve center
+
+
+ options.center = this.getCenterInternal(); // preserve rotation
+
+ options.rotation = this.getRotation();
+ return (0, _obj.assign)({}, options, newOptions);
+ };
+ /**
+ * Animate the view. The view's center, zoom (or resolution), and rotation
+ * can be animated for smooth transitions between view states. For example,
+ * to animate the view to a new zoom level:
+ *
+ * view.animate({zoom: view.getZoom() + 1});
+ *
+ * By default, the animation lasts one second and uses in-and-out easing. You
+ * can customize this behavior by including `duration` (in milliseconds) and
+ * `easing` options (see {@link module:ol/easing}).
+ *
+ * To chain together multiple animations, call the method with multiple
+ * animation objects. For example, to first zoom and then pan:
+ *
+ * view.animate({zoom: 10}, {center: [0, 0]});
+ *
+ * If you provide a function as the last argument to the animate method, it
+ * will get called at the end of an animation series. The callback will be
+ * called with `true` if the animation series completed on its own or `false`
+ * if it was cancelled.
+ *
+ * Animations are cancelled by user interactions (e.g. dragging the map) or by
+ * calling `view.setCenter()`, `view.setResolution()`, or `view.setRotation()`
+ * (or another method that calls one of these).
+ *
+ * @param {...(AnimationOptions|function(boolean): void)} var_args Animation
+ * options. Multiple animations can be run in series by passing multiple
+ * options objects. To run multiple animations in parallel, call the method
+ * multiple times. An optional callback can be provided as a final
+ * argument. The callback will be called with a boolean indicating whether
+ * the animation completed without being cancelled.
+ * @api
+ */
+
+
+ View.prototype.animate = function (var_args) {
+ if (this.isDef() && !this.getAnimating()) {
+ this.resolveConstraints(0);
+ }
+
+ var args = new Array(arguments.length);
+
+ for (var i = 0; i < args.length; ++i) {
+ var options = arguments[i];
+
+ if (options.center) {
+ options = (0, _obj.assign)({}, options);
+ options.center = (0, _proj.fromUserCoordinate)(options.center, this.getProjection());
+ }
+
+ if (options.anchor) {
+ options = (0, _obj.assign)({}, options);
+ options.anchor = (0, _proj.fromUserCoordinate)(options.anchor, this.getProjection());
+ }
+
+ args[i] = options;
+ }
+
+ this.animateInternal.apply(this, args);
+ };
+ /**
+ * @param {...(AnimationOptions|function(boolean): void)} var_args Animation options.
+ */
+
+
+ View.prototype.animateInternal = function (var_args) {
+ var animationCount = arguments.length;
+ var callback;
+
+ if (animationCount > 1 && typeof arguments[animationCount - 1] === 'function') {
+ callback = arguments[animationCount - 1];
+ --animationCount;
+ }
+
+ if (!this.isDef()) {
+ // if view properties are not yet set, shortcut to the final state
+ var state = arguments[animationCount - 1];
+
+ if (state.center) {
+ this.setCenterInternal(state.center);
+ }
+
+ if (state.zoom !== undefined) {
+ this.setZoom(state.zoom);
+ }
+
+ if (state.rotation !== undefined) {
+ this.setRotation(state.rotation);
+ }
+
+ if (callback) {
+ animationCallback(callback, true);
+ }
+
+ return;
+ }
+
+ var start = Date.now();
+ var center = this.targetCenter_.slice();
+ var resolution = this.targetResolution_;
+ var rotation = this.targetRotation_;
+ var series = [];
+
+ for (var i = 0; i < animationCount; ++i) {
+ var options =
+ /** @type {AnimationOptions} */
+ arguments[i];
+ var animation = {
+ start: start,
+ complete: false,
+ anchor: options.anchor,
+ duration: options.duration !== undefined ? options.duration : 1000,
+ easing: options.easing || _easing.inAndOut,
+ callback: callback
+ };
+
+ if (options.center) {
+ animation.sourceCenter = center;
+ animation.targetCenter = options.center.slice();
+ center = animation.targetCenter;
+ }
+
+ if (options.zoom !== undefined) {
+ animation.sourceResolution = resolution;
+ animation.targetResolution = this.getResolutionForZoom(options.zoom);
+ resolution = animation.targetResolution;
+ } else if (options.resolution) {
+ animation.sourceResolution = resolution;
+ animation.targetResolution = options.resolution;
+ resolution = animation.targetResolution;
+ }
+
+ if (options.rotation !== undefined) {
+ animation.sourceRotation = rotation;
+ var delta = (0, _math.modulo)(options.rotation - rotation + Math.PI, 2 * Math.PI) - Math.PI;
+ animation.targetRotation = rotation + delta;
+ rotation = animation.targetRotation;
+ } // check if animation is a no-op
+
+
+ if (isNoopAnimation(animation)) {
+ animation.complete = true; // we still push it onto the series for callback handling
+ } else {
+ start += animation.duration;
+ }
+
+ series.push(animation);
+ }
+
+ this.animations_.push(series);
+ this.setHint(_ViewHint.default.ANIMATING, 1);
+ this.updateAnimations_();
+ };
+ /**
+ * Determine if the view is being animated.
+ * @return {boolean} The view is being animated.
+ * @api
+ */
+
+
+ View.prototype.getAnimating = function () {
+ return this.hints_[_ViewHint.default.ANIMATING] > 0;
+ };
+ /**
+ * Determine if the user is interacting with the view, such as panning or zooming.
+ * @return {boolean} The view is being interacted with.
+ * @api
+ */
+
+
+ View.prototype.getInteracting = function () {
+ return this.hints_[_ViewHint.default.INTERACTING] > 0;
+ };
+ /**
+ * Cancel any ongoing animations.
+ * @api
+ */
+
+
+ View.prototype.cancelAnimations = function () {
+ this.setHint(_ViewHint.default.ANIMATING, -this.hints_[_ViewHint.default.ANIMATING]);
+ var anchor;
+
+ for (var i = 0, ii = this.animations_.length; i < ii; ++i) {
+ var series = this.animations_[i];
+
+ if (series[0].callback) {
+ animationCallback(series[0].callback, false);
+ }
+
+ if (!anchor) {
+ for (var j = 0, jj = series.length; j < jj; ++j) {
+ var animation = series[j];
+
+ if (!animation.complete) {
+ anchor = animation.anchor;
+ break;
+ }
+ }
+ }
+ }
+
+ this.animations_.length = 0;
+ this.cancelAnchor_ = anchor;
+ };
+ /**
+ * Update all animations.
+ */
+
+
+ View.prototype.updateAnimations_ = function () {
+ if (this.updateAnimationKey_ !== undefined) {
+ cancelAnimationFrame(this.updateAnimationKey_);
+ this.updateAnimationKey_ = undefined;
+ }
+
+ if (!this.getAnimating()) {
+ return;
+ }
+
+ var now = Date.now();
+ var more = false;
+
+ for (var i = this.animations_.length - 1; i >= 0; --i) {
+ var series = this.animations_[i];
+ var seriesComplete = true;
+
+ for (var j = 0, jj = series.length; j < jj; ++j) {
+ var animation = series[j];
+
+ if (animation.complete) {
+ continue;
+ }
+
+ var elapsed = now - animation.start;
+ var fraction = animation.duration > 0 ? elapsed / animation.duration : 1;
+
+ if (fraction >= 1) {
+ animation.complete = true;
+ fraction = 1;
+ } else {
+ seriesComplete = false;
+ }
+
+ var progress = animation.easing(fraction);
+
+ if (animation.sourceCenter) {
+ var x0 = animation.sourceCenter[0];
+ var y0 = animation.sourceCenter[1];
+ var x1 = animation.targetCenter[0];
+ var y1 = animation.targetCenter[1];
+ var x = x0 + progress * (x1 - x0);
+ var y = y0 + progress * (y1 - y0);
+ this.targetCenter_ = [x, y];
+ }
+
+ if (animation.sourceResolution && animation.targetResolution) {
+ var resolution = progress === 1 ? animation.targetResolution : animation.sourceResolution + progress * (animation.targetResolution - animation.sourceResolution);
+
+ if (animation.anchor) {
+ var size = this.getViewportSize_(this.getRotation());
+ var constrainedResolution = this.constraints_.resolution(resolution, 0, size, true);
+ this.targetCenter_ = this.calculateCenterZoom(constrainedResolution, animation.anchor);
+ }
+
+ this.targetResolution_ = resolution;
+ this.applyTargetState_(true);
+ }
+
+ if (animation.sourceRotation !== undefined && animation.targetRotation !== undefined) {
+ var rotation = progress === 1 ? (0, _math.modulo)(animation.targetRotation + Math.PI, 2 * Math.PI) - Math.PI : animation.sourceRotation + progress * (animation.targetRotation - animation.sourceRotation);
+
+ if (animation.anchor) {
+ var constrainedRotation = this.constraints_.rotation(rotation, true);
+ this.targetCenter_ = this.calculateCenterRotate(constrainedRotation, animation.anchor);
+ }
+
+ this.targetRotation_ = rotation;
+ }
+
+ this.applyTargetState_(true);
+ more = true;
+
+ if (!animation.complete) {
+ break;
+ }
+ }
+
+ if (seriesComplete) {
+ this.animations_[i] = null;
+ this.setHint(_ViewHint.default.ANIMATING, -1);
+ var callback = series[0].callback;
+
+ if (callback) {
+ animationCallback(callback, true);
+ }
+ }
+ } // prune completed series
+
+
+ this.animations_ = this.animations_.filter(Boolean);
+
+ if (more && this.updateAnimationKey_ === undefined) {
+ this.updateAnimationKey_ = requestAnimationFrame(this.updateAnimations_.bind(this));
+ }
+ };
+ /**
+ * @param {number} rotation Target rotation.
+ * @param {import("./coordinate.js").Coordinate} anchor Rotation anchor.
+ * @return {import("./coordinate.js").Coordinate|undefined} Center for rotation and anchor.
+ */
+
+
+ View.prototype.calculateCenterRotate = function (rotation, anchor) {
+ var center;
+ var currentCenter = this.getCenterInternal();
+
+ if (currentCenter !== undefined) {
+ center = [currentCenter[0] - anchor[0], currentCenter[1] - anchor[1]];
+ (0, _coordinate.rotate)(center, rotation - this.getRotation());
+ (0, _coordinate.add)(center, anchor);
+ }
+
+ return center;
+ };
+ /**
+ * @param {number} resolution Target resolution.
+ * @param {import("./coordinate.js").Coordinate} anchor Zoom anchor.
+ * @return {import("./coordinate.js").Coordinate|undefined} Center for resolution and anchor.
+ */
+
+
+ View.prototype.calculateCenterZoom = function (resolution, anchor) {
+ var center;
+ var currentCenter = this.getCenterInternal();
+ var currentResolution = this.getResolution();
+
+ if (currentCenter !== undefined && currentResolution !== undefined) {
+ var x = anchor[0] - resolution * (anchor[0] - currentCenter[0]) / currentResolution;
+ var y = anchor[1] - resolution * (anchor[1] - currentCenter[1]) / currentResolution;
+ center = [x, y];
+ }
+
+ return center;
+ };
+ /**
+ * Returns the current viewport size.
+ * @private
+ * @param {number=} opt_rotation Take into account the rotation of the viewport when giving the size
+ * @return {import("./size.js").Size} Viewport size or `[100, 100]` when no viewport is found.
+ */
+
+
+ View.prototype.getViewportSize_ = function (opt_rotation) {
+ var size = this.viewportSize_;
+
+ if (opt_rotation) {
+ var w = size[0];
+ var h = size[1];
+ return [Math.abs(w * Math.cos(opt_rotation)) + Math.abs(h * Math.sin(opt_rotation)), Math.abs(w * Math.sin(opt_rotation)) + Math.abs(h * Math.cos(opt_rotation))];
+ } else {
+ return size;
+ }
+ };
+ /**
+ * Stores the viewport size on the view. The viewport size is not read every time from the DOM
+ * to avoid performance hit and layout reflow.
+ * This should be done on map size change.
+ * Note: the constraints are not resolved during an animation to avoid stopping it
+ * @param {import("./size.js").Size=} opt_size Viewport size; if undefined, [100, 100] is assumed
+ */
+
+
+ View.prototype.setViewportSize = function (opt_size) {
+ this.viewportSize_ = Array.isArray(opt_size) ? opt_size.slice() : [100, 100];
+
+ if (!this.getAnimating()) {
+ this.resolveConstraints(0);
+ }
+ };
+ /**
+ * Get the view center.
+ * @return {import("./coordinate.js").Coordinate|undefined} The center of the view.
+ * @observable
+ * @api
+ */
+
+
+ View.prototype.getCenter = function () {
+ var center = this.getCenterInternal();
+
+ if (!center) {
+ return center;
+ }
+
+ return (0, _proj.toUserCoordinate)(center, this.getProjection());
+ };
+ /**
+ * Get the view center without transforming to user projection.
+ * @return {import("./coordinate.js").Coordinate|undefined} The center of the view.
+ */
+
+
+ View.prototype.getCenterInternal = function () {
+ return (
+ /** @type {import("./coordinate.js").Coordinate|undefined} */
+ this.get(_ViewProperty.default.CENTER)
+ );
+ };
+ /**
+ * @return {Constraints} Constraints.
+ */
+
+
+ View.prototype.getConstraints = function () {
+ return this.constraints_;
+ };
+ /**
+ * @return {boolean} Resolution constraint is set
+ */
+
+
+ View.prototype.getConstrainResolution = function () {
+ return this.options_.constrainResolution;
+ };
+ /**
+ * @param {Array<number>=} opt_hints Destination array.
+ * @return {Array<number>} Hint.
+ */
+
+
+ View.prototype.getHints = function (opt_hints) {
+ if (opt_hints !== undefined) {
+ opt_hints[0] = this.hints_[0];
+ opt_hints[1] = this.hints_[1];
+ return opt_hints;
+ } else {
+ return this.hints_.slice();
+ }
+ };
+ /**
+ * Calculate the extent for the current view state and the passed size.
+ * The size is the pixel dimensions of the box into which the calculated extent
+ * should fit. In most cases you want to get the extent of the entire map,
+ * that is `map.getSize()`.
+ * @param {import("./size.js").Size=} opt_size Box pixel size. If not provided, the size
+ * of the map that uses this view will be used.
+ * @return {import("./extent.js").Extent} Extent.
+ * @api
+ */
+
+
+ View.prototype.calculateExtent = function (opt_size) {
+ var extent = this.calculateExtentInternal(opt_size);
+ return (0, _proj.toUserExtent)(extent, this.getProjection());
+ };
+ /**
+ * @param {import("./size.js").Size=} opt_size Box pixel size. If not provided, the size of the
+ * first map that uses this view will be used.
+ * @return {import("./extent.js").Extent} Extent.
+ */
+
+
+ View.prototype.calculateExtentInternal = function (opt_size) {
+ var size = opt_size || this.getViewportSize_();
+ var center =
+ /** @type {!import("./coordinate.js").Coordinate} */
+ this.getCenterInternal();
+ (0, _asserts.assert)(center, 1); // The view center is not defined
+
+ var resolution =
+ /** @type {!number} */
+ this.getResolution();
+ (0, _asserts.assert)(resolution !== undefined, 2); // The view resolution is not defined
+
+ var rotation =
+ /** @type {!number} */
+ this.getRotation();
+ (0, _asserts.assert)(rotation !== undefined, 3); // The view rotation is not defined
+
+ return (0, _extent.getForViewAndSize)(center, resolution, rotation, size);
+ };
+ /**
+ * Get the maximum resolution of the view.
+ * @return {number} The maximum resolution of the view.
+ * @api
+ */
+
+
+ View.prototype.getMaxResolution = function () {
+ return this.maxResolution_;
+ };
+ /**
+ * Get the minimum resolution of the view.
+ * @return {number} The minimum resolution of the view.
+ * @api
+ */
+
+
+ View.prototype.getMinResolution = function () {
+ return this.minResolution_;
+ };
+ /**
+ * Get the maximum zoom level for the view.
+ * @return {number} The maximum zoom level.
+ * @api
+ */
+
+
+ View.prototype.getMaxZoom = function () {
+ return (
+ /** @type {number} */
+ this.getZoomForResolution(this.minResolution_)
+ );
+ };
+ /**
+ * Set a new maximum zoom level for the view.
+ * @param {number} zoom The maximum zoom level.
+ * @api
+ */
+
+
+ View.prototype.setMaxZoom = function (zoom) {
+ this.applyOptions_(this.getUpdatedOptions_({
+ maxZoom: zoom
+ }));
+ };
+ /**
+ * Get the minimum zoom level for the view.
+ * @return {number} The minimum zoom level.
+ * @api
+ */
+
+
+ View.prototype.getMinZoom = function () {
+ return (
+ /** @type {number} */
+ this.getZoomForResolution(this.maxResolution_)
+ );
+ };
+ /**
+ * Set a new minimum zoom level for the view.
+ * @param {number} zoom The minimum zoom level.
+ * @api
+ */
+
+
+ View.prototype.setMinZoom = function (zoom) {
+ this.applyOptions_(this.getUpdatedOptions_({
+ minZoom: zoom
+ }));
+ };
+ /**
+ * Set whether the view shoud allow intermediary zoom levels.
+ * @param {boolean} enabled Whether the resolution is constrained.
+ * @api
+ */
+
+
+ View.prototype.setConstrainResolution = function (enabled) {
+ this.applyOptions_(this.getUpdatedOptions_({
+ constrainResolution: enabled
+ }));
+ };
+ /**
+ * Get the view projection.
+ * @return {import("./proj/Projection.js").default} The projection of the view.
+ * @api
+ */
+
+
+ View.prototype.getProjection = function () {
+ return this.projection_;
+ };
+ /**
+ * Get the view resolution.
+ * @return {number|undefined} The resolution of the view.
+ * @observable
+ * @api
+ */
+
+
+ View.prototype.getResolution = function () {
+ return (
+ /** @type {number|undefined} */
+ this.get(_ViewProperty.default.RESOLUTION)
+ );
+ };
+ /**
+ * Get the resolutions for the view. This returns the array of resolutions
+ * passed to the constructor of the View, or undefined if none were given.
+ * @return {Array<number>|undefined} The resolutions of the view.
+ * @api
+ */
+
+
+ View.prototype.getResolutions = function () {
+ return this.resolutions_;
+ };
+ /**
+ * Get the resolution for a provided extent (in map units) and size (in pixels).
+ * @param {import("./extent.js").Extent} extent Extent.
+ * @param {import("./size.js").Size=} opt_size Box pixel size.
+ * @return {number} The resolution at which the provided extent will render at
+ * the given size.
+ * @api
+ */
+
+
+ View.prototype.getResolutionForExtent = function (extent, opt_size) {
+ return this.getResolutionForExtentInternal((0, _proj.fromUserExtent)(extent, this.getProjection()), opt_size);
+ };
+ /**
+ * Get the resolution for a provided extent (in map units) and size (in pixels).
+ * @param {import("./extent.js").Extent} extent Extent.
+ * @param {import("./size.js").Size=} opt_size Box pixel size.
+ * @return {number} The resolution at which the provided extent will render at
+ * the given size.
+ */
+
+
+ View.prototype.getResolutionForExtentInternal = function (extent, opt_size) {
+ var size = opt_size || this.getViewportSize_();
+ var xResolution = (0, _extent.getWidth)(extent) / size[0];
+ var yResolution = (0, _extent.getHeight)(extent) / size[1];
+ return Math.max(xResolution, yResolution);
+ };
+ /**
+ * Return a function that returns a value between 0 and 1 for a
+ * resolution. Exponential scaling is assumed.
+ * @param {number=} opt_power Power.
+ * @return {function(number): number} Resolution for value function.
+ */
+
+
+ View.prototype.getResolutionForValueFunction = function (opt_power) {
+ var power = opt_power || 2;
+ var maxResolution = this.getConstrainedResolution(this.maxResolution_);
+ var minResolution = this.minResolution_;
+ var max = Math.log(maxResolution / minResolution) / Math.log(power);
+ return (
+ /**
+ * @param {number} value Value.
+ * @return {number} Resolution.
+ */
+ function (value) {
+ var resolution = maxResolution / Math.pow(power, value * max);
+ return resolution;
+ }
+ );
+ };
+ /**
+ * Get the view rotation.
+ * @return {number} The rotation of the view in radians.
+ * @observable
+ * @api
+ */
+
+
+ View.prototype.getRotation = function () {
+ return (
+ /** @type {number} */
+ this.get(_ViewProperty.default.ROTATION)
+ );
+ };
+ /**
+ * Return a function that returns a resolution for a value between
+ * 0 and 1. Exponential scaling is assumed.
+ * @param {number=} opt_power Power.
+ * @return {function(number): number} Value for resolution function.
+ */
+
+
+ View.prototype.getValueForResolutionFunction = function (opt_power) {
+ var logPower = Math.log(opt_power || 2);
+ var maxResolution = this.getConstrainedResolution(this.maxResolution_);
+ var minResolution = this.minResolution_;
+ var max = Math.log(maxResolution / minResolution) / logPower;
+ return (
+ /**
+ * @param {number} resolution Resolution.
+ * @return {number} Value.
+ */
+ function (resolution) {
+ var value = Math.log(maxResolution / resolution) / logPower / max;
+ return value;
+ }
+ );
+ };
+ /**
+ * @return {State} View state.
+ */
+
+
+ View.prototype.getState = function () {
+ var center =
+ /** @type {import("./coordinate.js").Coordinate} */
+ this.getCenterInternal();
+ var projection = this.getProjection();
+ var resolution =
+ /** @type {number} */
+ this.getResolution();
+ var rotation = this.getRotation();
+ return {
+ center: center.slice(0),
+ projection: projection !== undefined ? projection : null,
+ resolution: resolution,
+ rotation: rotation,
+ zoom: this.getZoom()
+ };
+ };
+ /**
+ * Get the current zoom level. This method may return non-integer zoom levels
+ * if the view does not constrain the resolution, or if an interaction or
+ * animation is underway.
+ * @return {number|undefined} Zoom.
+ * @api
+ */
+
+
+ View.prototype.getZoom = function () {
+ var zoom;
+ var resolution = this.getResolution();
+
+ if (resolution !== undefined) {
+ zoom = this.getZoomForResolution(resolution);
+ }
+
+ return zoom;
+ };
+ /**
+ * Get the zoom level for a resolution.
+ * @param {number} resolution The resolution.
+ * @return {number|undefined} The zoom level for the provided resolution.
+ * @api
+ */
+
+
+ View.prototype.getZoomForResolution = function (resolution) {
+ var offset = this.minZoom_ || 0;
+ var max, zoomFactor;
+
+ if (this.resolutions_) {
+ var nearest = (0, _array.linearFindNearest)(this.resolutions_, resolution, 1);
+ offset = nearest;
+ max = this.resolutions_[nearest];
+
+ if (nearest == this.resolutions_.length - 1) {
+ zoomFactor = 2;
+ } else {
+ zoomFactor = max / this.resolutions_[nearest + 1];
+ }
+ } else {
+ max = this.maxResolution_;
+ zoomFactor = this.zoomFactor_;
+ }
+
+ return offset + Math.log(max / resolution) / Math.log(zoomFactor);
+ };
+ /**
+ * Get the resolution for a zoom level.
+ * @param {number} zoom Zoom level.
+ * @return {number} The view resolution for the provided zoom level.
+ * @api
+ */
+
+
+ View.prototype.getResolutionForZoom = function (zoom) {
+ if (this.resolutions_) {
+ if (this.resolutions_.length <= 1) {
+ return 0;
+ }
+
+ var baseLevel = (0, _math.clamp)(Math.floor(zoom), 0, this.resolutions_.length - 2);
+ var zoomFactor = this.resolutions_[baseLevel] / this.resolutions_[baseLevel + 1];
+ return this.resolutions_[baseLevel] / Math.pow(zoomFactor, (0, _math.clamp)(zoom - baseLevel, 0, 1));
+ } else {
+ return this.maxResolution_ / Math.pow(this.zoomFactor_, zoom - this.minZoom_);
+ }
+ };
+ /**
+ * Fit the given geometry or extent based on the given map size and border.
+ * The size is pixel dimensions of the box to fit the extent into.
+ * In most cases you will want to use the map size, that is `map.getSize()`.
+ * Takes care of the map angle.
+ * @param {import("./geom/SimpleGeometry.js").default|import("./extent.js").Extent} geometryOrExtent The geometry or
+ * extent to fit the view to.
+ * @param {FitOptions=} opt_options Options.
+ * @api
+ */
+
+
+ View.prototype.fit = function (geometryOrExtent, opt_options) {
+ var options = (0, _obj.assign)({
+ size: this.getViewportSize_()
+ }, opt_options || {});
+ /** @type {import("./geom/SimpleGeometry.js").default} */
+
+ var geometry;
+ (0, _asserts.assert)(Array.isArray(geometryOrExtent) || typeof
+ /** @type {?} */
+ geometryOrExtent.getSimplifiedGeometry === 'function', 24); // Invalid extent or geometry provided as `geometry`
+
+ if (Array.isArray(geometryOrExtent)) {
+ (0, _asserts.assert)(!(0, _extent.isEmpty)(geometryOrExtent), 25); // Cannot fit empty extent provided as `geometry`
+
+ var extent = (0, _proj.fromUserExtent)(geometryOrExtent, this.getProjection());
+ geometry = (0, _Polygon.fromExtent)(extent);
+ } else if (geometryOrExtent.getType() === _GeometryType.default.CIRCLE) {
+ var extent = (0, _proj.fromUserExtent)(geometryOrExtent.getExtent(), this.getProjection());
+ geometry = (0, _Polygon.fromExtent)(extent);
+ geometry.rotate(this.getRotation(), (0, _extent.getCenter)(extent));
+ } else {
+ var userProjection = (0, _proj.getUserProjection)();
+
+ if (userProjection) {
+ geometry =
+ /** @type {import("./geom/SimpleGeometry.js").default} */
+ geometryOrExtent.clone().transform(userProjection, this.getProjection());
+ } else {
+ geometry = geometryOrExtent;
+ }
+ }
+
+ this.fitInternal(geometry, options);
+ };
+ /**
+ * @param {import("./geom/SimpleGeometry.js").default} geometry The geometry.
+ * @param {FitOptions=} opt_options Options.
+ */
+
+
+ View.prototype.fitInternal = function (geometry, opt_options) {
+ var options = opt_options || {};
+ var size = options.size;
+
+ if (!size) {
+ size = this.getViewportSize_();
+ }
+
+ var padding = options.padding !== undefined ? options.padding : [0, 0, 0, 0];
+ var nearest = options.nearest !== undefined ? options.nearest : false;
+ var minResolution;
+
+ if (options.minResolution !== undefined) {
+ minResolution = options.minResolution;
+ } else if (options.maxZoom !== undefined) {
+ minResolution = this.getResolutionForZoom(options.maxZoom);
+ } else {
+ minResolution = 0;
+ }
+
+ var coords = geometry.getFlatCoordinates(); // calculate rotated extent
+
+ var rotation = this.getRotation();
+ var cosAngle = Math.cos(-rotation);
+ var sinAngle = Math.sin(-rotation);
+ var minRotX = +Infinity;
+ var minRotY = +Infinity;
+ var maxRotX = -Infinity;
+ var maxRotY = -Infinity;
+ var stride = geometry.getStride();
+
+ for (var i = 0, ii = coords.length; i < ii; i += stride) {
+ var rotX = coords[i] * cosAngle - coords[i + 1] * sinAngle;
+ var rotY = coords[i] * sinAngle + coords[i + 1] * cosAngle;
+ minRotX = Math.min(minRotX, rotX);
+ minRotY = Math.min(minRotY, rotY);
+ maxRotX = Math.max(maxRotX, rotX);
+ maxRotY = Math.max(maxRotY, rotY);
+ } // calculate resolution
+
+
+ var resolution = this.getResolutionForExtentInternal([minRotX, minRotY, maxRotX, maxRotY], [size[0] - padding[1] - padding[3], size[1] - padding[0] - padding[2]]);
+ resolution = isNaN(resolution) ? minResolution : Math.max(resolution, minResolution);
+ resolution = this.getConstrainedResolution(resolution, nearest ? 0 : 1); // calculate center
+
+ sinAngle = -sinAngle; // go back to original rotation
+
+ var centerRotX = (minRotX + maxRotX) / 2;
+ var centerRotY = (minRotY + maxRotY) / 2;
+ centerRotX += (padding[1] - padding[3]) / 2 * resolution;
+ centerRotY += (padding[0] - padding[2]) / 2 * resolution;
+ var centerX = centerRotX * cosAngle - centerRotY * sinAngle;
+ var centerY = centerRotY * cosAngle + centerRotX * sinAngle;
+ var center = [centerX, centerY];
+ var callback = options.callback ? options.callback : _functions.VOID;
+
+ if (options.duration !== undefined) {
+ this.animateInternal({
+ resolution: resolution,
+ center: this.getConstrainedCenter(center, resolution),
+ duration: options.duration,
+ easing: options.easing
+ }, callback);
+ } else {
+ this.targetResolution_ = resolution;
+ this.targetCenter_ = center;
+ this.applyTargetState_(false, true);
+ animationCallback(callback, true);
+ }
+ };
+ /**
+ * Center on coordinate and view position.
+ * @param {import("./coordinate.js").Coordinate} coordinate Coordinate.
+ * @param {import("./size.js").Size} size Box pixel size.
+ * @param {import("./pixel.js").Pixel} position Position on the view to center on.
+ * @api
+ */
+
+
+ View.prototype.centerOn = function (coordinate, size, position) {
+ this.centerOnInternal((0, _proj.fromUserCoordinate)(coordinate, this.getProjection()), size, position);
+ };
+ /**
+ * @param {import("./coordinate.js").Coordinate} coordinate Coordinate.
+ * @param {import("./size.js").Size} size Box pixel size.
+ * @param {import("./pixel.js").Pixel} position Position on the view to center on.
+ */
+
+
+ View.prototype.centerOnInternal = function (coordinate, size, position) {
+ // calculate rotated position
+ var rotation = this.getRotation();
+ var cosAngle = Math.cos(-rotation);
+ var sinAngle = Math.sin(-rotation);
+ var rotX = coordinate[0] * cosAngle - coordinate[1] * sinAngle;
+ var rotY = coordinate[1] * cosAngle + coordinate[0] * sinAngle;
+ var resolution = this.getResolution();
+ rotX += (size[0] / 2 - position[0]) * resolution;
+ rotY += (position[1] - size[1] / 2) * resolution; // go back to original angle
+
+ sinAngle = -sinAngle; // go back to original rotation
+
+ var centerX = rotX * cosAngle - rotY * sinAngle;
+ var centerY = rotY * cosAngle + rotX * sinAngle;
+ this.setCenterInternal([centerX, centerY]);
+ };
+ /**
+ * @return {boolean} Is defined.
+ */
+
+
+ View.prototype.isDef = function () {
+ return !!this.getCenterInternal() && this.getResolution() !== undefined;
+ };
+ /**
+ * Adds relative coordinates to the center of the view. Any extent constraint will apply.
+ * @param {import("./coordinate.js").Coordinate} deltaCoordinates Relative value to add.
+ * @api
+ */
+
+
+ View.prototype.adjustCenter = function (deltaCoordinates) {
+ var center = (0, _proj.toUserCoordinate)(this.targetCenter_, this.getProjection());
+ this.setCenter([center[0] + deltaCoordinates[0], center[1] + deltaCoordinates[1]]);
+ };
+ /**
+ * Adds relative coordinates to the center of the view. Any extent constraint will apply.
+ * @param {import("./coordinate.js").Coordinate} deltaCoordinates Relative value to add.
+ */
+
+
+ View.prototype.adjustCenterInternal = function (deltaCoordinates) {
+ var center = this.targetCenter_;
+ this.setCenterInternal([center[0] + deltaCoordinates[0], center[1] + deltaCoordinates[1]]);
+ };
+ /**
+ * Multiply the view resolution by a ratio, optionally using an anchor. Any resolution
+ * constraint will apply.
+ * @param {number} ratio The ratio to apply on the view resolution.
+ * @param {import("./coordinate.js").Coordinate=} opt_anchor The origin of the transformation.
+ * @api
+ */
+
+
+ View.prototype.adjustResolution = function (ratio, opt_anchor) {
+ var anchor = opt_anchor && (0, _proj.fromUserCoordinate)(opt_anchor, this.getProjection());
+ this.adjustResolutionInternal(ratio, anchor);
+ };
+ /**
+ * Multiply the view resolution by a ratio, optionally using an anchor. Any resolution
+ * constraint will apply.
+ * @param {number} ratio The ratio to apply on the view resolution.
+ * @param {import("./coordinate.js").Coordinate=} opt_anchor The origin of the transformation.
+ */
+
+
+ View.prototype.adjustResolutionInternal = function (ratio, opt_anchor) {
+ var isMoving = this.getAnimating() || this.getInteracting();
+ var size = this.getViewportSize_(this.getRotation());
+ var newResolution = this.constraints_.resolution(this.targetResolution_ * ratio, 0, size, isMoving);
+
+ if (opt_anchor) {
+ this.targetCenter_ = this.calculateCenterZoom(newResolution, opt_anchor);
+ }
+
+ this.targetResolution_ *= ratio;
+ this.applyTargetState_();
+ };
+ /**
+ * Adds a value to the view zoom level, optionally using an anchor. Any resolution
+ * constraint will apply.
+ * @param {number} delta Relative value to add to the zoom level.
+ * @param {import("./coordinate.js").Coordinate=} opt_anchor The origin of the transformation.
+ * @api
+ */
+
+
+ View.prototype.adjustZoom = function (delta, opt_anchor) {
+ this.adjustResolution(Math.pow(this.zoomFactor_, -delta), opt_anchor);
+ };
+ /**
+ * Adds a value to the view rotation, optionally using an anchor. Any rotation
+ * constraint will apply.
+ * @param {number} delta Relative value to add to the zoom rotation, in radians.
+ * @param {import("./coordinate.js").Coordinate=} opt_anchor The rotation center.
+ * @api
+ */
+
+
+ View.prototype.adjustRotation = function (delta, opt_anchor) {
+ if (opt_anchor) {
+ opt_anchor = (0, _proj.fromUserCoordinate)(opt_anchor, this.getProjection());
+ }
+
+ this.adjustRotationInternal(delta, opt_anchor);
+ };
+ /**
+ * @param {number} delta Relative value to add to the zoom rotation, in radians.
+ * @param {import("./coordinate.js").Coordinate=} opt_anchor The rotation center.
+ */
+
+
+ View.prototype.adjustRotationInternal = function (delta, opt_anchor) {
+ var isMoving = this.getAnimating() || this.getInteracting();
+ var newRotation = this.constraints_.rotation(this.targetRotation_ + delta, isMoving);
+
+ if (opt_anchor) {
+ this.targetCenter_ = this.calculateCenterRotate(newRotation, opt_anchor);
+ }
+
+ this.targetRotation_ += delta;
+ this.applyTargetState_();
+ };
+ /**
+ * Set the center of the current view. Any extent constraint will apply.
+ * @param {import("./coordinate.js").Coordinate|undefined} center The center of the view.
+ * @observable
+ * @api
+ */
+
+
+ View.prototype.setCenter = function (center) {
+ this.setCenterInternal((0, _proj.fromUserCoordinate)(center, this.getProjection()));
+ };
+ /**
+ * Set the center using the view projection (not the user projection).
+ * @param {import("./coordinate.js").Coordinate|undefined} center The center of the view.
+ */
+
+
+ View.prototype.setCenterInternal = function (center) {
+ this.targetCenter_ = center;
+ this.applyTargetState_();
+ };
+ /**
+ * @param {import("./ViewHint.js").default} hint Hint.
+ * @param {number} delta Delta.
+ * @return {number} New value.
+ */
+
+
+ View.prototype.setHint = function (hint, delta) {
+ this.hints_[hint] += delta;
+ this.changed();
+ return this.hints_[hint];
+ };
+ /**
+ * Set the resolution for this view. Any resolution constraint will apply.
+ * @param {number|undefined} resolution The resolution of the view.
+ * @observable
+ * @api
+ */
+
+
+ View.prototype.setResolution = function (resolution) {
+ this.targetResolution_ = resolution;
+ this.applyTargetState_();
+ };
+ /**
+ * Set the rotation for this view. Any rotation constraint will apply.
+ * @param {number} rotation The rotation of the view in radians.
+ * @observable
+ * @api
+ */
+
+
+ View.prototype.setRotation = function (rotation) {
+ this.targetRotation_ = rotation;
+ this.applyTargetState_();
+ };
+ /**
+ * Zoom to a specific zoom level. Any resolution constrain will apply.
+ * @param {number} zoom Zoom level.
+ * @api
+ */
+
+
+ View.prototype.setZoom = function (zoom) {
+ this.setResolution(this.getResolutionForZoom(zoom));
+ };
+ /**
+ * Recompute rotation/resolution/center based on target values.
+ * Note: we have to compute rotation first, then resolution and center considering that
+ * parameters can influence one another in case a view extent constraint is present.
+ * @param {boolean=} opt_doNotCancelAnims Do not cancel animations.
+ * @param {boolean=} opt_forceMoving Apply constraints as if the view is moving.
+ * @private
+ */
+
+
+ View.prototype.applyTargetState_ = function (opt_doNotCancelAnims, opt_forceMoving) {
+ var isMoving = this.getAnimating() || this.getInteracting() || opt_forceMoving; // compute rotation
+
+ var newRotation = this.constraints_.rotation(this.targetRotation_, isMoving);
+ var size = this.getViewportSize_(newRotation);
+ var newResolution = this.constraints_.resolution(this.targetResolution_, 0, size, isMoving);
+ var newCenter = this.constraints_.center(this.targetCenter_, newResolution, size, isMoving);
+
+ if (this.get(_ViewProperty.default.ROTATION) !== newRotation) {
+ this.set(_ViewProperty.default.ROTATION, newRotation);
+ }
+
+ if (this.get(_ViewProperty.default.RESOLUTION) !== newResolution) {
+ this.set(_ViewProperty.default.RESOLUTION, newResolution);
+ }
+
+ if (!this.get(_ViewProperty.default.CENTER) || !(0, _coordinate.equals)(this.get(_ViewProperty.default.CENTER), newCenter)) {
+ this.set(_ViewProperty.default.CENTER, newCenter);
+ }
+
+ if (this.getAnimating() && !opt_doNotCancelAnims) {
+ this.cancelAnimations();
+ }
+
+ this.cancelAnchor_ = undefined;
+ };
+ /**
+ * If any constraints need to be applied, an animation will be triggered.
+ * This is typically done on interaction end.
+ * Note: calling this with a duration of 0 will apply the constrained values straight away,
+ * without animation.
+ * @param {number=} opt_duration The animation duration in ms.
+ * @param {number=} opt_resolutionDirection Which direction to zoom.
+ * @param {import("./coordinate.js").Coordinate=} opt_anchor The origin of the transformation.
+ */
+
+
+ View.prototype.resolveConstraints = function (opt_duration, opt_resolutionDirection, opt_anchor) {
+ var duration = opt_duration !== undefined ? opt_duration : 200;
+ var direction = opt_resolutionDirection || 0;
+ var newRotation = this.constraints_.rotation(this.targetRotation_);
+ var size = this.getViewportSize_(newRotation);
+ var newResolution = this.constraints_.resolution(this.targetResolution_, direction, size);
+ var newCenter = this.constraints_.center(this.targetCenter_, newResolution, size);
+
+ if (duration === 0 && !this.cancelAnchor_) {
+ this.targetResolution_ = newResolution;
+ this.targetRotation_ = newRotation;
+ this.targetCenter_ = newCenter;
+ this.applyTargetState_();
+ return;
+ }
+
+ var anchor = opt_anchor || (duration === 0 ? this.cancelAnchor_ : undefined);
+ this.cancelAnchor_ = undefined;
+
+ if (this.getResolution() !== newResolution || this.getRotation() !== newRotation || !this.getCenterInternal() || !(0, _coordinate.equals)(this.getCenterInternal(), newCenter)) {
+ if (this.getAnimating()) {
+ this.cancelAnimations();
+ }
+
+ this.animateInternal({
+ rotation: newRotation,
+ center: newCenter,
+ resolution: newResolution,
+ duration: duration,
+ easing: _easing.easeOut,
+ anchor: anchor
+ });
+ }
+ };
+ /**
+ * Notify the View that an interaction has started.
+ * The view state will be resolved to a stable one if needed
+ * (depending on its constraints).
+ * @api
+ */
+
+
+ View.prototype.beginInteraction = function () {
+ this.resolveConstraints(0);
+ this.setHint(_ViewHint.default.INTERACTING, 1);
+ };
+ /**
+ * Notify the View that an interaction has ended. The view state will be resolved
+ * to a stable one if needed (depending on its constraints).
+ * @param {number=} opt_duration Animation duration in ms.
+ * @param {number=} opt_resolutionDirection Which direction to zoom.
+ * @param {import("./coordinate.js").Coordinate=} opt_anchor The origin of the transformation.
+ * @api
+ */
+
+
+ View.prototype.endInteraction = function (opt_duration, opt_resolutionDirection, opt_anchor) {
+ var anchor = opt_anchor && (0, _proj.fromUserCoordinate)(opt_anchor, this.getProjection());
+ this.endInteractionInternal(opt_duration, opt_resolutionDirection, anchor);
+ };
+ /**
+ * Notify the View that an interaction has ended. The view state will be resolved
+ * to a stable one if needed (depending on its constraints).
+ * @param {number=} opt_duration Animation duration in ms.
+ * @param {number=} opt_resolutionDirection Which direction to zoom.
+ * @param {import("./coordinate.js").Coordinate=} opt_anchor The origin of the transformation.
+ */
+
+
+ View.prototype.endInteractionInternal = function (opt_duration, opt_resolutionDirection, opt_anchor) {
+ this.setHint(_ViewHint.default.INTERACTING, -1);
+ this.resolveConstraints(opt_duration, opt_resolutionDirection, opt_anchor);
+ };
+ /**
+ * Get a valid position for the view center according to the current constraints.
+ * @param {import("./coordinate.js").Coordinate|undefined} targetCenter Target center position.
+ * @param {number=} opt_targetResolution Target resolution. If not supplied, the current one will be used.
+ * This is useful to guess a valid center position at a different zoom level.
+ * @return {import("./coordinate.js").Coordinate|undefined} Valid center position.
+ */
+
+
+ View.prototype.getConstrainedCenter = function (targetCenter, opt_targetResolution) {
+ var size = this.getViewportSize_(this.getRotation());
+ return this.constraints_.center(targetCenter, opt_targetResolution || this.getResolution(), size);
+ };
+ /**
+ * Get a valid zoom level according to the current view constraints.
+ * @param {number|undefined} targetZoom Target zoom.
+ * @param {number=} [opt_direction=0] Indicate which resolution should be used
+ * by a renderer if the view resolution does not match any resolution of the tile source.
+ * If 0, the nearest resolution will be used. If 1, the nearest lower resolution
+ * will be used. If -1, the nearest higher resolution will be used.
+ * @return {number|undefined} Valid zoom level.
+ */
+
+
+ View.prototype.getConstrainedZoom = function (targetZoom, opt_direction) {
+ var targetRes = this.getResolutionForZoom(targetZoom);
+ return this.getZoomForResolution(this.getConstrainedResolution(targetRes, opt_direction));
+ };
+ /**
+ * Get a valid resolution according to the current view constraints.
+ * @param {number|undefined} targetResolution Target resolution.
+ * @param {number=} [opt_direction=0] Indicate which resolution should be used
+ * by a renderer if the view resolution does not match any resolution of the tile source.
+ * If 0, the nearest resolution will be used. If 1, the nearest lower resolution
+ * will be used. If -1, the nearest higher resolution will be used.
+ * @return {number|undefined} Valid resolution.
+ */
+
+
+ View.prototype.getConstrainedResolution = function (targetResolution, opt_direction) {
+ var direction = opt_direction || 0;
+ var size = this.getViewportSize_(this.getRotation());
+ return this.constraints_.resolution(targetResolution, direction, size);
+ };
+
+ return View;
+}(_Object.default);
+/**
+ * @param {Function} callback Callback.
+ * @param {*} returnValue Return value.
+ */
+
+
+function animationCallback(callback, returnValue) {
+ setTimeout(function () {
+ callback(returnValue);
+ }, 0);
+}
+/**
+ * @param {ViewOptions} options View options.
+ * @return {import("./centerconstraint.js").Type} The constraint.
+ */
+
+
+function createCenterConstraint(options) {
+ if (options.extent !== undefined) {
+ var smooth = options.smoothExtentConstraint !== undefined ? options.smoothExtentConstraint : true;
+ return (0, _centerconstraint.createExtent)(options.extent, options.constrainOnlyCenter, smooth);
+ }
+
+ var projection = (0, _proj.createProjection)(options.projection, 'EPSG:3857');
+
+ if (options.multiWorld !== true && projection.isGlobal()) {
+ var extent = projection.getExtent().slice();
+ extent[0] = -Infinity;
+ extent[2] = Infinity;
+ return (0, _centerconstraint.createExtent)(extent, false, false);
+ }
+
+ return _centerconstraint.none;
+}
+/**
+ * @param {ViewOptions} options View options.
+ * @return {{constraint: import("./resolutionconstraint.js").Type, maxResolution: number,
+ * minResolution: number, minZoom: number, zoomFactor: number}} The constraint.
+ */
+
+
+function createResolutionConstraint(options) {
+ var resolutionConstraint;
+ var maxResolution;
+ var minResolution; // TODO: move these to be ol constants
+ // see https://github.com/openlayers/openlayers/issues/2076
+
+ var defaultMaxZoom = 28;
+ var defaultZoomFactor = 2;
+ var minZoom = options.minZoom !== undefined ? options.minZoom : DEFAULT_MIN_ZOOM;
+ var maxZoom = options.maxZoom !== undefined ? options.maxZoom : defaultMaxZoom;
+ var zoomFactor = options.zoomFactor !== undefined ? options.zoomFactor : defaultZoomFactor;
+ var multiWorld = options.multiWorld !== undefined ? options.multiWorld : false;
+ var smooth = options.smoothResolutionConstraint !== undefined ? options.smoothResolutionConstraint : true;
+ var showFullExtent = options.showFullExtent !== undefined ? options.showFullExtent : false;
+ var projection = (0, _proj.createProjection)(options.projection, 'EPSG:3857');
+ var projExtent = projection.getExtent();
+ var constrainOnlyCenter = options.constrainOnlyCenter;
+ var extent = options.extent;
+
+ if (!multiWorld && !extent && projection.isGlobal()) {
+ constrainOnlyCenter = false;
+ extent = projExtent;
+ }
+
+ if (options.resolutions !== undefined) {
+ var resolutions = options.resolutions;
+ maxResolution = resolutions[minZoom];
+ minResolution = resolutions[maxZoom] !== undefined ? resolutions[maxZoom] : resolutions[resolutions.length - 1];
+
+ if (options.constrainResolution) {
+ resolutionConstraint = (0, _resolutionconstraint.createSnapToResolutions)(resolutions, smooth, !constrainOnlyCenter && extent, showFullExtent);
+ } else {
+ resolutionConstraint = (0, _resolutionconstraint.createMinMaxResolution)(maxResolution, minResolution, smooth, !constrainOnlyCenter && extent, showFullExtent);
+ }
+ } else {
+ // calculate the default min and max resolution
+ var size = !projExtent ? // use an extent that can fit the whole world if need be
+ 360 * _proj.METERS_PER_UNIT[_Units.default.DEGREES] / projection.getMetersPerUnit() : Math.max((0, _extent.getWidth)(projExtent), (0, _extent.getHeight)(projExtent));
+ var defaultMaxResolution = size / _common.DEFAULT_TILE_SIZE / Math.pow(defaultZoomFactor, DEFAULT_MIN_ZOOM);
+ var defaultMinResolution = defaultMaxResolution / Math.pow(defaultZoomFactor, defaultMaxZoom - DEFAULT_MIN_ZOOM); // user provided maxResolution takes precedence
+
+ maxResolution = options.maxResolution;
+
+ if (maxResolution !== undefined) {
+ minZoom = 0;
+ } else {
+ maxResolution = defaultMaxResolution / Math.pow(zoomFactor, minZoom);
+ } // user provided minResolution takes precedence
+
+
+ minResolution = options.minResolution;
+
+ if (minResolution === undefined) {
+ if (options.maxZoom !== undefined) {
+ if (options.maxResolution !== undefined) {
+ minResolution = maxResolution / Math.pow(zoomFactor, maxZoom);
+ } else {
+ minResolution = defaultMaxResolution / Math.pow(zoomFactor, maxZoom);
+ }
+ } else {
+ minResolution = defaultMinResolution;
+ }
+ } // given discrete zoom levels, minResolution may be different than provided
+
+
+ maxZoom = minZoom + Math.floor(Math.log(maxResolution / minResolution) / Math.log(zoomFactor));
+ minResolution = maxResolution / Math.pow(zoomFactor, maxZoom - minZoom);
+
+ if (options.constrainResolution) {
+ resolutionConstraint = (0, _resolutionconstraint.createSnapToPower)(zoomFactor, maxResolution, minResolution, smooth, !constrainOnlyCenter && extent, showFullExtent);
+ } else {
+ resolutionConstraint = (0, _resolutionconstraint.createMinMaxResolution)(maxResolution, minResolution, smooth, !constrainOnlyCenter && extent, showFullExtent);
+ }
+ }
+
+ return {
+ constraint: resolutionConstraint,
+ maxResolution: maxResolution,
+ minResolution: minResolution,
+ minZoom: minZoom,
+ zoomFactor: zoomFactor
+ };
+}
+/**
+ * @param {ViewOptions} options View options.
+ * @return {import("./rotationconstraint.js").Type} Rotation constraint.
+ */
+
+
+function createRotationConstraint(options) {
+ var enableRotation = options.enableRotation !== undefined ? options.enableRotation : true;
+
+ if (enableRotation) {
+ var constrainRotation = options.constrainRotation;
+
+ if (constrainRotation === undefined || constrainRotation === true) {
+ return (0, _rotationconstraint.createSnapToZero)();
+ } else if (constrainRotation === false) {
+ return _rotationconstraint.none;
+ } else if (typeof constrainRotation === 'number') {
+ return (0, _rotationconstraint.createSnapToN)(constrainRotation);
+ } else {
+ return _rotationconstraint.none;
+ }
+ } else {
+ return _rotationconstraint.disable;
+ }
+}
+/**
+ * Determine if an animation involves no view change.
+ * @param {Animation} animation The animation.
+ * @return {boolean} The animation involves no view change.
+ */
+
+
+function isNoopAnimation(animation) {
+ if (animation.sourceCenter && animation.targetCenter) {
+ if (!(0, _coordinate.equals)(animation.sourceCenter, animation.targetCenter)) {
+ return false;
+ }
+ }
+
+ if (animation.sourceResolution !== animation.targetResolution) {
+ return false;
+ }
+
+ if (animation.sourceRotation !== animation.targetRotation) {
+ return false;
+ }
+
+ return true;
+}
+
+var _default = View;
+exports.default = _default;
+},{"./Object.js":"../../../node_modules/ol/Object.js","./geom/GeometryType.js":"../../../node_modules/ol/geom/GeometryType.js","./proj/Units.js":"../../../node_modules/ol/proj/Units.js","./ViewHint.js":"../../../node_modules/ol/ViewHint.js","./ViewProperty.js":"../../../node_modules/ol/ViewProperty.js","./tilegrid/common.js":"../../../node_modules/ol/tilegrid/common.js","./proj.js":"../../../node_modules/ol/proj.js","./functions.js":"../../../node_modules/ol/functions.js","./coordinate.js":"../../../node_modules/ol/coordinate.js","./asserts.js":"../../../node_modules/ol/asserts.js","./obj.js":"../../../node_modules/ol/obj.js","./centerconstraint.js":"../../../node_modules/ol/centerconstraint.js","./math.js":"../../../node_modules/ol/math.js","./resolutionconstraint.js":"../../../node_modules/ol/resolutionconstraint.js","./rotationconstraint.js":"../../../node_modules/ol/rotationconstraint.js","./easing.js":"../../../node_modules/ol/easing.js","./extent.js":"../../../node_modules/ol/extent.js","./array.js":"../../../node_modules/ol/array.js","./geom/Polygon.js":"../../../node_modules/ol/geom/Polygon.js"}],"../../../node_modules/ol/PluggableMap.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Object = _interopRequireWildcard(require("./Object.js"));
+
+var _Collection = _interopRequireDefault(require("./Collection.js"));
+
+var _CollectionEventType = _interopRequireDefault(require("./CollectionEventType.js"));
+
+var _EventType = _interopRequireDefault(require("./events/EventType.js"));
+
+var _Group = _interopRequireDefault(require("./layer/Group.js"));
+
+var _MapBrowserEvent = _interopRequireDefault(require("./MapBrowserEvent.js"));
+
+var _MapBrowserEventHandler = _interopRequireDefault(require("./MapBrowserEventHandler.js"));
+
+var _MapBrowserEventType = _interopRequireDefault(require("./MapBrowserEventType.js"));
+
+var _MapEvent = _interopRequireDefault(require("./MapEvent.js"));
+
+var _MapEventType = _interopRequireDefault(require("./MapEventType.js"));
+
+var _MapProperty = _interopRequireDefault(require("./MapProperty.js"));
+
+var _ObjectEventType = _interopRequireDefault(require("./ObjectEventType.js"));
+
+var _EventType2 = _interopRequireDefault(require("./pointer/EventType.js"));
+
+var _EventType3 = _interopRequireDefault(require("./render/EventType.js"));
+
+var _TileQueue = _interopRequireWildcard(require("./TileQueue.js"));
+
+var _View = _interopRequireDefault(require("./View.js"));
+
+var _ViewHint = _interopRequireDefault(require("./ViewHint.js"));
+
+var _has = require("./has.js");
+
+var _functions = require("./functions.js");
+
+var _transform = require("./transform.js");
+
+var _asserts = require("./asserts.js");
+
+var _extent = require("./extent.js");
+
+var _proj = require("./proj.js");
+
+var _size = require("./size.js");
+
+var _events = require("./events.js");
+
+var _dom = require("./dom.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/PluggableMap
+ */
+
+
+/**
+ * State of the current frame. Only `pixelRatio`, `time` and `viewState` should
+ * be used in applications.
+ * @typedef {Object} FrameState
+ * @property {number} pixelRatio The pixel ratio of the frame.
+ * @property {number} time The time when rendering of the frame was requested.
+ * @property {import("./View.js").State} viewState The state of the current view.
+ * @property {boolean} animate
+ * @property {import("./transform.js").Transform} coordinateToPixelTransform
+ * @property {null|import("./extent.js").Extent} extent
+ * @property {Array<DeclutterItems>} declutterItems
+ * @property {number} index
+ * @property {Array<import("./layer/Layer.js").State>} layerStatesArray
+ * @property {number} layerIndex
+ * @property {import("./transform.js").Transform} pixelToCoordinateTransform
+ * @property {Array<PostRenderFunction>} postRenderFunctions
+ * @property {import("./size.js").Size} size
+ * @property {TileQueue} tileQueue
+ * @property {!Object<string, Object<string, boolean>>} usedTiles
+ * @property {Array<number>} viewHints
+ * @property {!Object<string, Object<string, boolean>>} wantedTiles
+ */
+
+/**
+ * @typedef {Object} DeclutterItems
+ * @property {Array<*>} items Declutter items of an executor.
+ * @property {number} opacity Layer opacity.
+ */
+
+/**
+ * @typedef {function(PluggableMap, ?FrameState): any} PostRenderFunction
+ */
+
+/**
+ * @typedef {Object} AtPixelOptions
+ * @property {undefined|function(import("./layer/Layer.js").default): boolean} [layerFilter] Layer filter
+ * function. The filter function will receive one argument, the
+ * {@link module:ol/layer/Layer layer-candidate} and it should return a boolean value.
+ * Only layers which are visible and for which this function returns `true`
+ * will be tested for features. By default, all visible layers will be tested.
+ * @property {number} [hitTolerance=0] Hit-detection tolerance in pixels. Pixels
+ * inside the radius around the given position will be checked for features.
+ * @property {boolean} [checkWrapped=true] Check-Wrapped Will check for for wrapped geometries inside the range of
+ * +/- 1 world width. Works only if a projection is used that can be wrapped.
+ */
+
+/**
+ * @typedef {Object} MapOptionsInternal
+ * @property {Collection<import("./control/Control.js").default>} [controls]
+ * @property {Collection<import("./interaction/Interaction.js").default>} [interactions]
+ * @property {HTMLElement|Document} keyboardEventTarget
+ * @property {Collection<import("./Overlay.js").default>} overlays
+ * @property {Object<string, *>} values
+ */
+
+/**
+ * Object literal with config options for the map.
+ * @typedef {Object} MapOptions
+ * @property {Collection<import("./control/Control.js").default>|Array<import("./control/Control.js").default>} [controls]
+ * Controls initially added to the map. If not specified,
+ * {@link module:ol/control~defaults} is used.
+ * @property {number} [pixelRatio=window.devicePixelRatio] The ratio between
+ * physical pixels and device-independent pixels (dips) on the device.
+ * @property {Collection<import("./interaction/Interaction.js").default>|Array<import("./interaction/Interaction.js").default>} [interactions]
+ * Interactions that are initially added to the map. If not specified,
+ * {@link module:ol/interaction~defaults} is used.
+ * @property {HTMLElement|Document|string} [keyboardEventTarget] The element to
+ * listen to keyboard events on. This determines when the `KeyboardPan` and
+ * `KeyboardZoom` interactions trigger. For example, if this option is set to
+ * `document` the keyboard interactions will always trigger. If this option is
+ * not specified, the element the library listens to keyboard events on is the
+ * map target (i.e. the user-provided div for the map). If this is not
+ * `document`, the target element needs to be focused for key events to be
+ * emitted, requiring that the target element has a `tabindex` attribute.
+ * @property {Array<import("./layer/Base.js").default>|Collection<import("./layer/Base.js").default>|LayerGroup} [layers]
+ * Layers. If this is not defined, a map with no layers will be rendered. Note
+ * that layers are rendered in the order supplied, so if you want, for example,
+ * a vector layer to appear on top of a tile layer, it must come after the tile
+ * layer.
+ * @property {number} [maxTilesLoading=16] Maximum number tiles to load
+ * simultaneously.
+ * @property {number} [moveTolerance=1] The minimum distance in pixels the
+ * cursor must move to be detected as a map move event instead of a click.
+ * Increasing this value can make it easier to click on the map.
+ * @property {Collection<import("./Overlay.js").default>|Array<import("./Overlay.js").default>} [overlays]
+ * Overlays initially added to the map. By default, no overlays are added.
+ * @property {HTMLElement|string} [target] The container for the map, either the
+ * element itself or the `id` of the element. If not specified at construction
+ * time, {@link module:ol/Map~Map#setTarget} must be called for the map to be
+ * rendered.
+ * @property {View} [view] The map's view. No layer sources will be
+ * fetched unless this is specified at construction time or through
+ * {@link module:ol/Map~Map#setView}.
+ */
+
+/**
+ * @fires import("./MapBrowserEvent.js").MapBrowserEvent
+ * @fires import("./MapEvent.js").MapEvent
+ * @fires import("./render/Event.js").default#precompose
+ * @fires import("./render/Event.js").default#postcompose
+ * @fires import("./render/Event.js").default#rendercomplete
+ * @api
+ */
+var PluggableMap =
+/** @class */
+function (_super) {
+ __extends(PluggableMap, _super);
+ /**
+ * @param {MapOptions} options Map options.
+ */
+
+
+ function PluggableMap(options) {
+ var _this = _super.call(this) || this;
+
+ var optionsInternal = createOptionsInternal(options);
+ /** @private */
+
+ _this.boundHandleBrowserEvent_ = _this.handleBrowserEvent.bind(_this);
+ /**
+ * @type {number}
+ * @private
+ */
+
+ _this.maxTilesLoading_ = options.maxTilesLoading !== undefined ? options.maxTilesLoading : 16;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.pixelRatio_ = options.pixelRatio !== undefined ? options.pixelRatio : _has.DEVICE_PIXEL_RATIO;
+ /**
+ * @private
+ * @type {*}
+ */
+
+ _this.postRenderTimeoutHandle_;
+ /**
+ * @private
+ * @type {number|undefined}
+ */
+
+ _this.animationDelayKey_;
+ /**
+ * @private
+ */
+
+ _this.animationDelay_ = function () {
+ this.animationDelayKey_ = undefined;
+ this.renderFrame_(Date.now());
+ }.bind(_this);
+ /**
+ * @private
+ * @type {import("./transform.js").Transform}
+ */
+
+
+ _this.coordinateToPixelTransform_ = (0, _transform.create)();
+ /**
+ * @private
+ * @type {import("./transform.js").Transform}
+ */
+
+ _this.pixelToCoordinateTransform_ = (0, _transform.create)();
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.frameIndex_ = 0;
+ /**
+ * @private
+ * @type {?FrameState}
+ */
+
+ _this.frameState_ = null;
+ /**
+ * The extent at the previous 'moveend' event.
+ * @private
+ * @type {import("./extent.js").Extent}
+ */
+
+ _this.previousExtent_ = null;
+ /**
+ * @private
+ * @type {?import("./events.js").EventsKey}
+ */
+
+ _this.viewPropertyListenerKey_ = null;
+ /**
+ * @private
+ * @type {?import("./events.js").EventsKey}
+ */
+
+ _this.viewChangeListenerKey_ = null;
+ /**
+ * @private
+ * @type {?Array<import("./events.js").EventsKey>}
+ */
+
+ _this.layerGroupPropertyListenerKeys_ = null;
+ /**
+ * @private
+ * @type {!HTMLElement}
+ */
+
+ _this.viewport_ = document.createElement('div');
+ _this.viewport_.className = 'ol-viewport' + ('ontouchstart' in window ? ' ol-touch' : '');
+ _this.viewport_.style.position = 'relative';
+ _this.viewport_.style.overflow = 'hidden';
+ _this.viewport_.style.width = '100%';
+ _this.viewport_.style.height = '100%';
+ /**
+ * @private
+ * @type {!HTMLElement}
+ */
+
+ _this.overlayContainer_ = document.createElement('div');
+ _this.overlayContainer_.style.position = 'absolute';
+ _this.overlayContainer_.style.zIndex = '0';
+ _this.overlayContainer_.style.width = '100%';
+ _this.overlayContainer_.style.height = '100%';
+ _this.overlayContainer_.style.pointerEvents = 'none';
+ _this.overlayContainer_.className = 'ol-overlaycontainer';
+
+ _this.viewport_.appendChild(_this.overlayContainer_);
+ /**
+ * @private
+ * @type {!HTMLElement}
+ */
+
+
+ _this.overlayContainerStopEvent_ = document.createElement('div');
+ _this.overlayContainerStopEvent_.style.position = 'absolute';
+ _this.overlayContainerStopEvent_.style.zIndex = '0';
+ _this.overlayContainerStopEvent_.style.width = '100%';
+ _this.overlayContainerStopEvent_.style.height = '100%';
+ _this.overlayContainerStopEvent_.style.pointerEvents = 'none';
+ _this.overlayContainerStopEvent_.className = 'ol-overlaycontainer-stopevent';
+
+ _this.viewport_.appendChild(_this.overlayContainerStopEvent_);
+ /**
+ * @private
+ * @type {MapBrowserEventHandler}
+ */
+
+
+ _this.mapBrowserEventHandler_ = null;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.moveTolerance_ = options.moveTolerance;
+ /**
+ * @private
+ * @type {HTMLElement|Document}
+ */
+
+ _this.keyboardEventTarget_ = optionsInternal.keyboardEventTarget;
+ /**
+ * @private
+ * @type {?Array<import("./events.js").EventsKey>}
+ */
+
+ _this.keyHandlerKeys_ = null;
+ /**
+ * @type {Collection<import("./control/Control.js").default>}
+ * @protected
+ */
+
+ _this.controls = optionsInternal.controls || new _Collection.default();
+ /**
+ * @type {Collection<import("./interaction/Interaction.js").default>}
+ * @protected
+ */
+
+ _this.interactions = optionsInternal.interactions || new _Collection.default();
+ /**
+ * @type {Collection<import("./Overlay.js").default>}
+ * @private
+ */
+
+ _this.overlays_ = optionsInternal.overlays;
+ /**
+ * A lookup of overlays by id.
+ * @private
+ * @type {Object<string, import("./Overlay.js").default>}
+ */
+
+ _this.overlayIdIndex_ = {};
+ /**
+ * @type {import("./renderer/Map.js").default}
+ * @private
+ */
+
+ _this.renderer_ = null;
+ /**
+ * @type {undefined|function(Event): void}
+ * @private
+ */
+
+ _this.handleResize_;
+ /**
+ * @private
+ * @type {!Array<PostRenderFunction>}
+ */
+
+ _this.postRenderFunctions_ = [];
+ /**
+ * @private
+ * @type {TileQueue}
+ */
+
+ _this.tileQueue_ = new _TileQueue.default(_this.getTilePriority.bind(_this), _this.handleTileChange_.bind(_this));
+
+ _this.addEventListener((0, _Object.getChangeEventType)(_MapProperty.default.LAYERGROUP), _this.handleLayerGroupChanged_);
+
+ _this.addEventListener((0, _Object.getChangeEventType)(_MapProperty.default.VIEW), _this.handleViewChanged_);
+
+ _this.addEventListener((0, _Object.getChangeEventType)(_MapProperty.default.SIZE), _this.handleSizeChanged_);
+
+ _this.addEventListener((0, _Object.getChangeEventType)(_MapProperty.default.TARGET), _this.handleTargetChanged_); // setProperties will trigger the rendering of the map if the map
+ // is "defined" already.
+
+
+ _this.setProperties(optionsInternal.values);
+
+ _this.controls.forEach(
+ /**
+ * @param {import("./control/Control.js").default} control Control.
+ * @this {PluggableMap}
+ */
+ function (control) {
+ control.setMap(this);
+ }.bind(_this));
+
+ _this.controls.addEventListener(_CollectionEventType.default.ADD,
+ /**
+ * @param {import("./Collection.js").CollectionEvent} event CollectionEvent.
+ */
+ function (event) {
+ event.element.setMap(this);
+ }.bind(_this));
+
+ _this.controls.addEventListener(_CollectionEventType.default.REMOVE,
+ /**
+ * @param {import("./Collection.js").CollectionEvent} event CollectionEvent.
+ */
+ function (event) {
+ event.element.setMap(null);
+ }.bind(_this));
+
+ _this.interactions.forEach(
+ /**
+ * @param {import("./interaction/Interaction.js").default} interaction Interaction.
+ * @this {PluggableMap}
+ */
+ function (interaction) {
+ interaction.setMap(this);
+ }.bind(_this));
+
+ _this.interactions.addEventListener(_CollectionEventType.default.ADD,
+ /**
+ * @param {import("./Collection.js").CollectionEvent} event CollectionEvent.
+ */
+ function (event) {
+ event.element.setMap(this);
+ }.bind(_this));
+
+ _this.interactions.addEventListener(_CollectionEventType.default.REMOVE,
+ /**
+ * @param {import("./Collection.js").CollectionEvent} event CollectionEvent.
+ */
+ function (event) {
+ event.element.setMap(null);
+ }.bind(_this));
+
+ _this.overlays_.forEach(_this.addOverlayInternal_.bind(_this));
+
+ _this.overlays_.addEventListener(_CollectionEventType.default.ADD,
+ /**
+ * @param {import("./Collection.js").CollectionEvent} event CollectionEvent.
+ */
+ function (event) {
+ this.addOverlayInternal_(
+ /** @type {import("./Overlay.js").default} */
+ event.element);
+ }.bind(_this));
+
+ _this.overlays_.addEventListener(_CollectionEventType.default.REMOVE,
+ /**
+ * @param {import("./Collection.js").CollectionEvent} event CollectionEvent.
+ */
+ function (event) {
+ var overlay =
+ /** @type {import("./Overlay.js").default} */
+ event.element;
+ var id = overlay.getId();
+
+ if (id !== undefined) {
+ delete this.overlayIdIndex_[id.toString()];
+ }
+
+ event.element.setMap(null);
+ }.bind(_this));
+
+ return _this;
+ }
+ /**
+ * @abstract
+ * @return {import("./renderer/Map.js").default} The map renderer
+ */
+
+
+ PluggableMap.prototype.createRenderer = function () {
+ throw new Error('Use a map type that has a createRenderer method');
+ };
+ /**
+ * Add the given control to the map.
+ * @param {import("./control/Control.js").default} control Control.
+ * @api
+ */
+
+
+ PluggableMap.prototype.addControl = function (control) {
+ this.getControls().push(control);
+ };
+ /**
+ * Add the given interaction to the map. If you want to add an interaction
+ * at another point of the collection use `getInteraction()` and the methods
+ * available on {@link module:ol/Collection~Collection}. This can be used to
+ * stop the event propagation from the handleEvent function. The interactions
+ * get to handle the events in the reverse order of this collection.
+ * @param {import("./interaction/Interaction.js").default} interaction Interaction to add.
+ * @api
+ */
+
+
+ PluggableMap.prototype.addInteraction = function (interaction) {
+ this.getInteractions().push(interaction);
+ };
+ /**
+ * Adds the given layer to the top of this map. If you want to add a layer
+ * elsewhere in the stack, use `getLayers()` and the methods available on
+ * {@link module:ol/Collection~Collection}.
+ * @param {import("./layer/Base.js").default} layer Layer.
+ * @api
+ */
+
+
+ PluggableMap.prototype.addLayer = function (layer) {
+ var layers = this.getLayerGroup().getLayers();
+ layers.push(layer);
+ };
+ /**
+ * Add the given overlay to the map.
+ * @param {import("./Overlay.js").default} overlay Overlay.
+ * @api
+ */
+
+
+ PluggableMap.prototype.addOverlay = function (overlay) {
+ this.getOverlays().push(overlay);
+ };
+ /**
+ * This deals with map's overlay collection changes.
+ * @param {import("./Overlay.js").default} overlay Overlay.
+ * @private
+ */
+
+
+ PluggableMap.prototype.addOverlayInternal_ = function (overlay) {
+ var id = overlay.getId();
+
+ if (id !== undefined) {
+ this.overlayIdIndex_[id.toString()] = overlay;
+ }
+
+ overlay.setMap(this);
+ };
+ /**
+ *
+ * Clean up.
+ */
+
+
+ PluggableMap.prototype.disposeInternal = function () {
+ this.setTarget(null);
+
+ _super.prototype.disposeInternal.call(this);
+ };
+ /**
+ * Detect features that intersect a pixel on the viewport, and execute a
+ * callback with each intersecting feature. Layers included in the detection can
+ * be configured through the `layerFilter` option in `opt_options`.
+ * @param {import("./pixel.js").Pixel} pixel Pixel.
+ * @param {function(this: S, import("./Feature.js").FeatureLike,
+ * import("./layer/Layer.js").default): T} callback Feature callback. The callback will be
+ * called with two arguments. The first argument is one
+ * {@link module:ol/Feature feature} or
+ * {@link module:ol/render/Feature render feature} at the pixel, the second is
+ * the {@link module:ol/layer/Layer layer} of the feature and will be null for
+ * unmanaged layers. To stop detection, callback functions can return a
+ * truthy value.
+ * @param {AtPixelOptions=} opt_options Optional options.
+ * @return {T|undefined} Callback result, i.e. the return value of last
+ * callback execution, or the first truthy callback return value.
+ * @template S,T
+ * @api
+ */
+
+
+ PluggableMap.prototype.forEachFeatureAtPixel = function (pixel, callback, opt_options) {
+ if (!this.frameState_) {
+ return;
+ }
+
+ var coordinate = this.getCoordinateFromPixelInternal(pixel);
+ opt_options = opt_options !== undefined ? opt_options : {};
+ var hitTolerance = opt_options.hitTolerance !== undefined ? opt_options.hitTolerance * this.frameState_.pixelRatio : 0;
+ var layerFilter = opt_options.layerFilter !== undefined ? opt_options.layerFilter : _functions.TRUE;
+ var checkWrapped = opt_options.checkWrapped !== false;
+ return this.renderer_.forEachFeatureAtCoordinate(coordinate, this.frameState_, hitTolerance, checkWrapped, callback, null, layerFilter, null);
+ };
+ /**
+ * Get all features that intersect a pixel on the viewport.
+ * @param {import("./pixel.js").Pixel} pixel Pixel.
+ * @param {AtPixelOptions=} opt_options Optional options.
+ * @return {Array<import("./Feature.js").FeatureLike>} The detected features or
+ * an empty array if none were found.
+ * @api
+ */
+
+
+ PluggableMap.prototype.getFeaturesAtPixel = function (pixel, opt_options) {
+ var features = [];
+ this.forEachFeatureAtPixel(pixel, function (feature) {
+ features.push(feature);
+ }, opt_options);
+ return features;
+ };
+ /**
+ * Detect layers that have a color value at a pixel on the viewport, and
+ * execute a callback with each matching layer. Layers included in the
+ * detection can be configured through `opt_layerFilter`.
+ *
+ * Note: this may give false positives unless the map layers have had different `className`
+ * properties assigned to them.
+ *
+ * @param {import("./pixel.js").Pixel} pixel Pixel.
+ * @param {function(this: S, import("./layer/Layer.js").default, (Uint8ClampedArray|Uint8Array)): T} callback
+ * Layer callback. This callback will receive two arguments: first is the
+ * {@link module:ol/layer/Layer layer}, second argument is an array representing
+ * [R, G, B, A] pixel values (0 - 255) and will be `null` for layer types
+ * that do not currently support this argument. To stop detection, callback
+ * functions can return a truthy value.
+ * @param {AtPixelOptions=} opt_options Configuration options.
+ * @return {T|undefined} Callback result, i.e. the return value of last
+ * callback execution, or the first truthy callback return value.
+ * @template S,T
+ * @api
+ */
+
+
+ PluggableMap.prototype.forEachLayerAtPixel = function (pixel, callback, opt_options) {
+ if (!this.frameState_) {
+ return;
+ }
+
+ var options = opt_options || {};
+ var hitTolerance = options.hitTolerance !== undefined ? options.hitTolerance * this.frameState_.pixelRatio : 0;
+ var layerFilter = options.layerFilter || _functions.TRUE;
+ return this.renderer_.forEachLayerAtPixel(pixel, this.frameState_, hitTolerance, callback, layerFilter);
+ };
+ /**
+ * Detect if features intersect a pixel on the viewport. Layers included in the
+ * detection can be configured through `opt_layerFilter`.
+ * @param {import("./pixel.js").Pixel} pixel Pixel.
+ * @param {AtPixelOptions=} opt_options Optional options.
+ * @return {boolean} Is there a feature at the given pixel?
+ * @api
+ */
+
+
+ PluggableMap.prototype.hasFeatureAtPixel = function (pixel, opt_options) {
+ if (!this.frameState_) {
+ return false;
+ }
+
+ var coordinate = this.getCoordinateFromPixelInternal(pixel);
+ opt_options = opt_options !== undefined ? opt_options : {};
+ var layerFilter = opt_options.layerFilter !== undefined ? opt_options.layerFilter : _functions.TRUE;
+ var hitTolerance = opt_options.hitTolerance !== undefined ? opt_options.hitTolerance * this.frameState_.pixelRatio : 0;
+ var checkWrapped = opt_options.checkWrapped !== false;
+ return this.renderer_.hasFeatureAtCoordinate(coordinate, this.frameState_, hitTolerance, checkWrapped, layerFilter, null);
+ };
+ /**
+ * Returns the coordinate in user projection for a browser event.
+ * @param {MouseEvent} event Event.
+ * @return {import("./coordinate.js").Coordinate} Coordinate.
+ * @api
+ */
+
+
+ PluggableMap.prototype.getEventCoordinate = function (event) {
+ return this.getCoordinateFromPixel(this.getEventPixel(event));
+ };
+ /**
+ * Returns the coordinate in view projection for a browser event.
+ * @param {MouseEvent} event Event.
+ * @return {import("./coordinate.js").Coordinate} Coordinate.
+ */
+
+
+ PluggableMap.prototype.getEventCoordinateInternal = function (event) {
+ return this.getCoordinateFromPixelInternal(this.getEventPixel(event));
+ };
+ /**
+ * Returns the map pixel position for a browser event relative to the viewport.
+ * @param {UIEvent} event Event.
+ * @return {import("./pixel.js").Pixel} Pixel.
+ * @api
+ */
+
+
+ PluggableMap.prototype.getEventPixel = function (event) {
+ var viewportPosition = this.viewport_.getBoundingClientRect();
+ var eventPosition = //FIXME Are we really calling this with a TouchEvent anywhere?
+ 'changedTouches' in event ?
+ /** @type {TouchEvent} */
+ event.changedTouches[0] :
+ /** @type {MouseEvent} */
+ event;
+ return [eventPosition.clientX - viewportPosition.left, eventPosition.clientY - viewportPosition.top];
+ };
+ /**
+ * Get the target in which this map is rendered.
+ * Note that this returns what is entered as an option or in setTarget:
+ * if that was an element, it returns an element; if a string, it returns that.
+ * @return {HTMLElement|string|undefined} The Element or id of the Element that the
+ * map is rendered in.
+ * @observable
+ * @api
+ */
+
+
+ PluggableMap.prototype.getTarget = function () {
+ return (
+ /** @type {HTMLElement|string|undefined} */
+ this.get(_MapProperty.default.TARGET)
+ );
+ };
+ /**
+ * Get the DOM element into which this map is rendered. In contrast to
+ * `getTarget` this method always return an `Element`, or `null` if the
+ * map has no target.
+ * @return {HTMLElement} The element that the map is rendered in.
+ * @api
+ */
+
+
+ PluggableMap.prototype.getTargetElement = function () {
+ var target = this.getTarget();
+
+ if (target !== undefined) {
+ return typeof target === 'string' ? document.getElementById(target) : target;
+ } else {
+ return null;
+ }
+ };
+ /**
+ * Get the coordinate for a given pixel. This returns a coordinate in the
+ * user projection.
+ * @param {import("./pixel.js").Pixel} pixel Pixel position in the map viewport.
+ * @return {import("./coordinate.js").Coordinate} The coordinate for the pixel position.
+ * @api
+ */
+
+
+ PluggableMap.prototype.getCoordinateFromPixel = function (pixel) {
+ return (0, _proj.toUserCoordinate)(this.getCoordinateFromPixelInternal(pixel), this.getView().getProjection());
+ };
+ /**
+ * Get the coordinate for a given pixel. This returns a coordinate in the
+ * map view projection.
+ * @param {import("./pixel.js").Pixel} pixel Pixel position in the map viewport.
+ * @return {import("./coordinate.js").Coordinate} The coordinate for the pixel position.
+ */
+
+
+ PluggableMap.prototype.getCoordinateFromPixelInternal = function (pixel) {
+ var frameState = this.frameState_;
+
+ if (!frameState) {
+ return null;
+ } else {
+ return (0, _transform.apply)(frameState.pixelToCoordinateTransform, pixel.slice());
+ }
+ };
+ /**
+ * Get the map controls. Modifying this collection changes the controls
+ * associated with the map.
+ * @return {Collection<import("./control/Control.js").default>} Controls.
+ * @api
+ */
+
+
+ PluggableMap.prototype.getControls = function () {
+ return this.controls;
+ };
+ /**
+ * Get the map overlays. Modifying this collection changes the overlays
+ * associated with the map.
+ * @return {Collection<import("./Overlay.js").default>} Overlays.
+ * @api
+ */
+
+
+ PluggableMap.prototype.getOverlays = function () {
+ return this.overlays_;
+ };
+ /**
+ * Get an overlay by its identifier (the value returned by overlay.getId()).
+ * Note that the index treats string and numeric identifiers as the same. So
+ * `map.getOverlayById(2)` will return an overlay with id `'2'` or `2`.
+ * @param {string|number} id Overlay identifier.
+ * @return {import("./Overlay.js").default} Overlay.
+ * @api
+ */
+
+
+ PluggableMap.prototype.getOverlayById = function (id) {
+ var overlay = this.overlayIdIndex_[id.toString()];
+ return overlay !== undefined ? overlay : null;
+ };
+ /**
+ * Get the map interactions. Modifying this collection changes the interactions
+ * associated with the map.
+ *
+ * Interactions are used for e.g. pan, zoom and rotate.
+ * @return {Collection<import("./interaction/Interaction.js").default>} Interactions.
+ * @api
+ */
+
+
+ PluggableMap.prototype.getInteractions = function () {
+ return this.interactions;
+ };
+ /**
+ * Get the layergroup associated with this map.
+ * @return {LayerGroup} A layer group containing the layers in this map.
+ * @observable
+ * @api
+ */
+
+
+ PluggableMap.prototype.getLayerGroup = function () {
+ return (
+ /** @type {LayerGroup} */
+ this.get(_MapProperty.default.LAYERGROUP)
+ );
+ };
+ /**
+ * Get the collection of layers associated with this map.
+ * @return {!Collection<import("./layer/Base.js").default>} Layers.
+ * @api
+ */
+
+
+ PluggableMap.prototype.getLayers = function () {
+ var layers = this.getLayerGroup().getLayers();
+ return layers;
+ };
+ /**
+ * @return {boolean} Layers have sources that are still loading.
+ */
+
+
+ PluggableMap.prototype.getLoading = function () {
+ var layerStatesArray = this.getLayerGroup().getLayerStatesArray();
+
+ for (var i = 0, ii = layerStatesArray.length; i < ii; ++i) {
+ var layer = layerStatesArray[i].layer;
+ var source =
+ /** @type {import("./layer/Layer.js").default} */
+ layer.getSource();
+
+ if (source && source.loading) {
+ return true;
+ }
+ }
+
+ return false;
+ };
+ /**
+ * Get the pixel for a coordinate. This takes a coordinate in the user
+ * projection and returns the corresponding pixel.
+ * @param {import("./coordinate.js").Coordinate} coordinate A map coordinate.
+ * @return {import("./pixel.js").Pixel} A pixel position in the map viewport.
+ * @api
+ */
+
+
+ PluggableMap.prototype.getPixelFromCoordinate = function (coordinate) {
+ var viewCoordinate = (0, _proj.fromUserCoordinate)(coordinate, this.getView().getProjection());
+ return this.getPixelFromCoordinateInternal(viewCoordinate);
+ };
+ /**
+ * Get the pixel for a coordinate. This takes a coordinate in the map view
+ * projection and returns the corresponding pixel.
+ * @param {import("./coordinate.js").Coordinate} coordinate A map coordinate.
+ * @return {import("./pixel.js").Pixel} A pixel position in the map viewport.
+ */
+
+
+ PluggableMap.prototype.getPixelFromCoordinateInternal = function (coordinate) {
+ var frameState = this.frameState_;
+
+ if (!frameState) {
+ return null;
+ } else {
+ return (0, _transform.apply)(frameState.coordinateToPixelTransform, coordinate.slice(0, 2));
+ }
+ };
+ /**
+ * Get the map renderer.
+ * @return {import("./renderer/Map.js").default} Renderer
+ */
+
+
+ PluggableMap.prototype.getRenderer = function () {
+ return this.renderer_;
+ };
+ /**
+ * Get the size of this map.
+ * @return {import("./size.js").Size|undefined} The size in pixels of the map in the DOM.
+ * @observable
+ * @api
+ */
+
+
+ PluggableMap.prototype.getSize = function () {
+ return (
+ /** @type {import("./size.js").Size|undefined} */
+ this.get(_MapProperty.default.SIZE)
+ );
+ };
+ /**
+ * Get the view associated with this map. A view manages properties such as
+ * center and resolution.
+ * @return {View} The view that controls this map.
+ * @observable
+ * @api
+ */
+
+
+ PluggableMap.prototype.getView = function () {
+ return (
+ /** @type {View} */
+ this.get(_MapProperty.default.VIEW)
+ );
+ };
+ /**
+ * Get the element that serves as the map viewport.
+ * @return {HTMLElement} Viewport.
+ * @api
+ */
+
+
+ PluggableMap.prototype.getViewport = function () {
+ return this.viewport_;
+ };
+ /**
+ * Get the element that serves as the container for overlays. Elements added to
+ * this container will let mousedown and touchstart events through to the map,
+ * so clicks and gestures on an overlay will trigger {@link module:ol/MapBrowserEvent~MapBrowserEvent}
+ * events.
+ * @return {!HTMLElement} The map's overlay container.
+ */
+
+
+ PluggableMap.prototype.getOverlayContainer = function () {
+ return this.overlayContainer_;
+ };
+ /**
+ * Get the element that serves as a container for overlays that don't allow
+ * event propagation. Elements added to this container won't let mousedown and
+ * touchstart events through to the map, so clicks and gestures on an overlay
+ * don't trigger any {@link module:ol/MapBrowserEvent~MapBrowserEvent}.
+ * @return {!HTMLElement} The map's overlay container that stops events.
+ */
+
+
+ PluggableMap.prototype.getOverlayContainerStopEvent = function () {
+ return this.overlayContainerStopEvent_;
+ };
+ /**
+ * @param {import("./Tile.js").default} tile Tile.
+ * @param {string} tileSourceKey Tile source key.
+ * @param {import("./coordinate.js").Coordinate} tileCenter Tile center.
+ * @param {number} tileResolution Tile resolution.
+ * @return {number} Tile priority.
+ */
+
+
+ PluggableMap.prototype.getTilePriority = function (tile, tileSourceKey, tileCenter, tileResolution) {
+ return (0, _TileQueue.getTilePriority)(this.frameState_, tile, tileSourceKey, tileCenter, tileResolution);
+ };
+ /**
+ * @param {UIEvent} browserEvent Browser event.
+ * @param {string=} opt_type Type.
+ */
+
+
+ PluggableMap.prototype.handleBrowserEvent = function (browserEvent, opt_type) {
+ var type = opt_type || browserEvent.type;
+ var mapBrowserEvent = new _MapBrowserEvent.default(type, this, browserEvent);
+ this.handleMapBrowserEvent(mapBrowserEvent);
+ };
+ /**
+ * @param {MapBrowserEvent} mapBrowserEvent The event to handle.
+ */
+
+
+ PluggableMap.prototype.handleMapBrowserEvent = function (mapBrowserEvent) {
+ if (!this.frameState_) {
+ // With no view defined, we cannot translate pixels into geographical
+ // coordinates so interactions cannot be used.
+ return;
+ }
+
+ var originalEvent =
+ /** @type {PointerEvent} */
+ mapBrowserEvent.originalEvent;
+ var eventType = originalEvent.type;
+
+ if (eventType === _EventType2.default.POINTERDOWN || eventType === _EventType.default.WHEEL || eventType === _EventType.default.KEYDOWN) {
+ var rootNode = this.viewport_.getRootNode ? this.viewport_.getRootNode() : document;
+ var target = rootNode === document ?
+ /** @type {Node} */
+ originalEvent.target :
+ /** @type {ShadowRoot} */
+ rootNode.elementFromPoint(originalEvent.clientX, originalEvent.clientY);
+
+ if ( // Abort if the target is a child of the container for elements whose events are not meant
+ // to be handled by map interactions.
+ this.overlayContainerStopEvent_.contains(target) || // Abort if the event target is a child of the container that is no longer in the page.
+ // It's possible for the target to no longer be in the page if it has been removed in an
+ // event listener, this might happen in a Control that recreates it's content based on
+ // user interaction either manually or via a render in something like https://reactjs.org/
+ !(rootNode === document ? document.documentElement : rootNode).contains(target)) {
+ return;
+ }
+ }
+
+ mapBrowserEvent.frameState = this.frameState_;
+ var interactionsArray = this.getInteractions().getArray();
+
+ if (this.dispatchEvent(mapBrowserEvent) !== false) {
+ for (var i = interactionsArray.length - 1; i >= 0; i--) {
+ var interaction = interactionsArray[i];
+
+ if (!interaction.getActive()) {
+ continue;
+ }
+
+ var cont = interaction.handleEvent(mapBrowserEvent);
+
+ if (!cont) {
+ break;
+ }
+ }
+ }
+ };
+ /**
+ * @protected
+ */
+
+
+ PluggableMap.prototype.handlePostRender = function () {
+ var frameState = this.frameState_; // Manage the tile queue
+ // Image loads are expensive and a limited resource, so try to use them
+ // efficiently:
+ // * When the view is static we allow a large number of parallel tile loads
+ // to complete the frame as quickly as possible.
+ // * When animating or interacting, image loads can cause janks, so we reduce
+ // the maximum number of loads per frame and limit the number of parallel
+ // tile loads to remain reactive to view changes and to reduce the chance of
+ // loading tiles that will quickly disappear from view.
+
+ var tileQueue = this.tileQueue_;
+
+ if (!tileQueue.isEmpty()) {
+ var maxTotalLoading = this.maxTilesLoading_;
+ var maxNewLoads = maxTotalLoading;
+
+ if (frameState) {
+ var hints = frameState.viewHints;
+
+ if (hints[_ViewHint.default.ANIMATING] || hints[_ViewHint.default.INTERACTING]) {
+ var lowOnFrameBudget = !_has.IMAGE_DECODE && Date.now() - frameState.time > 8;
+ maxTotalLoading = lowOnFrameBudget ? 0 : 8;
+ maxNewLoads = lowOnFrameBudget ? 0 : 2;
+ }
+ }
+
+ if (tileQueue.getTilesLoading() < maxTotalLoading) {
+ tileQueue.reprioritize(); // FIXME only call if view has changed
+
+ tileQueue.loadMoreTiles(maxTotalLoading, maxNewLoads);
+ }
+ }
+
+ if (frameState && this.hasListener(_EventType3.default.RENDERCOMPLETE) && !frameState.animate && !this.tileQueue_.getTilesLoading() && !this.getLoading()) {
+ this.renderer_.dispatchRenderEvent(_EventType3.default.RENDERCOMPLETE, frameState);
+ }
+
+ var postRenderFunctions = this.postRenderFunctions_;
+
+ for (var i = 0, ii = postRenderFunctions.length; i < ii; ++i) {
+ postRenderFunctions[i](this, frameState);
+ }
+
+ postRenderFunctions.length = 0;
+ };
+ /**
+ * @private
+ */
+
+
+ PluggableMap.prototype.handleSizeChanged_ = function () {
+ if (this.getView() && !this.getView().getAnimating()) {
+ this.getView().resolveConstraints(0);
+ }
+
+ this.render();
+ };
+ /**
+ * @private
+ */
+
+
+ PluggableMap.prototype.handleTargetChanged_ = function () {
+ // target may be undefined, null, a string or an Element.
+ // If it's a string we convert it to an Element before proceeding.
+ // If it's not now an Element we remove the viewport from the DOM.
+ // If it's an Element we append the viewport element to it.
+ var targetElement;
+
+ if (this.getTarget()) {
+ targetElement = this.getTargetElement();
+ }
+
+ if (this.mapBrowserEventHandler_) {
+ for (var i = 0, ii = this.keyHandlerKeys_.length; i < ii; ++i) {
+ (0, _events.unlistenByKey)(this.keyHandlerKeys_[i]);
+ }
+
+ this.keyHandlerKeys_ = null;
+ this.viewport_.removeEventListener(_EventType.default.CONTEXTMENU, this.boundHandleBrowserEvent_);
+ this.viewport_.removeEventListener(_EventType.default.WHEEL, this.boundHandleBrowserEvent_);
+
+ if (this.handleResize_ !== undefined) {
+ removeEventListener(_EventType.default.RESIZE, this.handleResize_, false);
+ this.handleResize_ = undefined;
+ }
+
+ this.mapBrowserEventHandler_.dispose();
+ this.mapBrowserEventHandler_ = null;
+ (0, _dom.removeNode)(this.viewport_);
+ }
+
+ if (!targetElement) {
+ if (this.renderer_) {
+ clearTimeout(this.postRenderTimeoutHandle_);
+ this.postRenderFunctions_.length = 0;
+ this.renderer_.dispose();
+ this.renderer_ = null;
+ }
+
+ if (this.animationDelayKey_) {
+ cancelAnimationFrame(this.animationDelayKey_);
+ this.animationDelayKey_ = undefined;
+ }
+ } else {
+ targetElement.appendChild(this.viewport_);
+
+ if (!this.renderer_) {
+ this.renderer_ = this.createRenderer();
+ }
+
+ this.mapBrowserEventHandler_ = new _MapBrowserEventHandler.default(this, this.moveTolerance_);
+
+ for (var key in _MapBrowserEventType.default) {
+ this.mapBrowserEventHandler_.addEventListener(_MapBrowserEventType.default[key], this.handleMapBrowserEvent.bind(this));
+ }
+
+ this.viewport_.addEventListener(_EventType.default.CONTEXTMENU, this.boundHandleBrowserEvent_, false);
+ this.viewport_.addEventListener(_EventType.default.WHEEL, this.boundHandleBrowserEvent_, _has.PASSIVE_EVENT_LISTENERS ? {
+ passive: false
+ } : false);
+ var keyboardEventTarget = !this.keyboardEventTarget_ ? targetElement : this.keyboardEventTarget_;
+ this.keyHandlerKeys_ = [(0, _events.listen)(keyboardEventTarget, _EventType.default.KEYDOWN, this.handleBrowserEvent, this), (0, _events.listen)(keyboardEventTarget, _EventType.default.KEYPRESS, this.handleBrowserEvent, this)];
+
+ if (!this.handleResize_) {
+ this.handleResize_ = this.updateSize.bind(this);
+ window.addEventListener(_EventType.default.RESIZE, this.handleResize_, false);
+ }
+ }
+
+ this.updateSize(); // updateSize calls setSize, so no need to call this.render
+ // ourselves here.
+ };
+ /**
+ * @private
+ */
+
+
+ PluggableMap.prototype.handleTileChange_ = function () {
+ this.render();
+ };
+ /**
+ * @private
+ */
+
+
+ PluggableMap.prototype.handleViewPropertyChanged_ = function () {
+ this.render();
+ };
+ /**
+ * @private
+ */
+
+
+ PluggableMap.prototype.handleViewChanged_ = function () {
+ if (this.viewPropertyListenerKey_) {
+ (0, _events.unlistenByKey)(this.viewPropertyListenerKey_);
+ this.viewPropertyListenerKey_ = null;
+ }
+
+ if (this.viewChangeListenerKey_) {
+ (0, _events.unlistenByKey)(this.viewChangeListenerKey_);
+ this.viewChangeListenerKey_ = null;
+ }
+
+ var view = this.getView();
+
+ if (view) {
+ this.updateViewportSize_();
+ this.viewPropertyListenerKey_ = (0, _events.listen)(view, _ObjectEventType.default.PROPERTYCHANGE, this.handleViewPropertyChanged_, this);
+ this.viewChangeListenerKey_ = (0, _events.listen)(view, _EventType.default.CHANGE, this.handleViewPropertyChanged_, this);
+ view.resolveConstraints(0);
+ }
+
+ this.render();
+ };
+ /**
+ * @private
+ */
+
+
+ PluggableMap.prototype.handleLayerGroupChanged_ = function () {
+ if (this.layerGroupPropertyListenerKeys_) {
+ this.layerGroupPropertyListenerKeys_.forEach(_events.unlistenByKey);
+ this.layerGroupPropertyListenerKeys_ = null;
+ }
+
+ var layerGroup = this.getLayerGroup();
+
+ if (layerGroup) {
+ this.layerGroupPropertyListenerKeys_ = [(0, _events.listen)(layerGroup, _ObjectEventType.default.PROPERTYCHANGE, this.render, this), (0, _events.listen)(layerGroup, _EventType.default.CHANGE, this.render, this)];
+ }
+
+ this.render();
+ };
+ /**
+ * @return {boolean} Is rendered.
+ */
+
+
+ PluggableMap.prototype.isRendered = function () {
+ return !!this.frameState_;
+ };
+ /**
+ * Requests an immediate render in a synchronous manner.
+ * @api
+ */
+
+
+ PluggableMap.prototype.renderSync = function () {
+ if (this.animationDelayKey_) {
+ cancelAnimationFrame(this.animationDelayKey_);
+ }
+
+ this.animationDelay_();
+ };
+ /**
+ * Redraws all text after new fonts have loaded
+ */
+
+
+ PluggableMap.prototype.redrawText = function () {
+ var layerStates = this.getLayerGroup().getLayerStatesArray();
+
+ for (var i = 0, ii = layerStates.length; i < ii; ++i) {
+ var layer = layerStates[i].layer;
+
+ if (layer.hasRenderer()) {
+ layer.getRenderer().handleFontsChanged();
+ }
+ }
+ };
+ /**
+ * Request a map rendering (at the next animation frame).
+ * @api
+ */
+
+
+ PluggableMap.prototype.render = function () {
+ if (this.renderer_ && this.animationDelayKey_ === undefined) {
+ this.animationDelayKey_ = requestAnimationFrame(this.animationDelay_);
+ }
+ };
+ /**
+ * Remove the given control from the map.
+ * @param {import("./control/Control.js").default} control Control.
+ * @return {import("./control/Control.js").default|undefined} The removed control (or undefined
+ * if the control was not found).
+ * @api
+ */
+
+
+ PluggableMap.prototype.removeControl = function (control) {
+ return this.getControls().remove(control);
+ };
+ /**
+ * Remove the given interaction from the map.
+ * @param {import("./interaction/Interaction.js").default} interaction Interaction to remove.
+ * @return {import("./interaction/Interaction.js").default|undefined} The removed interaction (or
+ * undefined if the interaction was not found).
+ * @api
+ */
+
+
+ PluggableMap.prototype.removeInteraction = function (interaction) {
+ return this.getInteractions().remove(interaction);
+ };
+ /**
+ * Removes the given layer from the map.
+ * @param {import("./layer/Base.js").default} layer Layer.
+ * @return {import("./layer/Base.js").default|undefined} The removed layer (or undefined if the
+ * layer was not found).
+ * @api
+ */
+
+
+ PluggableMap.prototype.removeLayer = function (layer) {
+ var layers = this.getLayerGroup().getLayers();
+ return layers.remove(layer);
+ };
+ /**
+ * Remove the given overlay from the map.
+ * @param {import("./Overlay.js").default} overlay Overlay.
+ * @return {import("./Overlay.js").default|undefined} The removed overlay (or undefined
+ * if the overlay was not found).
+ * @api
+ */
+
+
+ PluggableMap.prototype.removeOverlay = function (overlay) {
+ return this.getOverlays().remove(overlay);
+ };
+ /**
+ * @param {number} time Time.
+ * @private
+ */
+
+
+ PluggableMap.prototype.renderFrame_ = function (time) {
+ var size = this.getSize();
+ var view = this.getView();
+ var previousFrameState = this.frameState_;
+ /** @type {?FrameState} */
+
+ var frameState = null;
+
+ if (size !== undefined && (0, _size.hasArea)(size) && view && view.isDef()) {
+ var viewHints = view.getHints(this.frameState_ ? this.frameState_.viewHints : undefined);
+ var viewState = view.getState();
+ frameState = {
+ animate: false,
+ coordinateToPixelTransform: this.coordinateToPixelTransform_,
+ declutterItems: previousFrameState ? previousFrameState.declutterItems : [],
+ extent: (0, _extent.getForViewAndSize)(viewState.center, viewState.resolution, viewState.rotation, size),
+ index: this.frameIndex_++,
+ layerIndex: 0,
+ layerStatesArray: this.getLayerGroup().getLayerStatesArray(),
+ pixelRatio: this.pixelRatio_,
+ pixelToCoordinateTransform: this.pixelToCoordinateTransform_,
+ postRenderFunctions: [],
+ size: size,
+ tileQueue: this.tileQueue_,
+ time: time,
+ usedTiles: {},
+ viewState: viewState,
+ viewHints: viewHints,
+ wantedTiles: {}
+ };
+ }
+
+ this.frameState_ = frameState;
+ this.renderer_.renderFrame(frameState);
+
+ if (frameState) {
+ if (frameState.animate) {
+ this.render();
+ }
+
+ Array.prototype.push.apply(this.postRenderFunctions_, frameState.postRenderFunctions);
+
+ if (previousFrameState) {
+ var moveStart = !this.previousExtent_ || !(0, _extent.isEmpty)(this.previousExtent_) && !(0, _extent.equals)(frameState.extent, this.previousExtent_);
+
+ if (moveStart) {
+ this.dispatchEvent(new _MapEvent.default(_MapEventType.default.MOVESTART, this, previousFrameState));
+ this.previousExtent_ = (0, _extent.createOrUpdateEmpty)(this.previousExtent_);
+ }
+ }
+
+ var idle = this.previousExtent_ && !frameState.viewHints[_ViewHint.default.ANIMATING] && !frameState.viewHints[_ViewHint.default.INTERACTING] && !(0, _extent.equals)(frameState.extent, this.previousExtent_);
+
+ if (idle) {
+ this.dispatchEvent(new _MapEvent.default(_MapEventType.default.MOVEEND, this, frameState));
+ (0, _extent.clone)(frameState.extent, this.previousExtent_);
+ }
+ }
+
+ this.dispatchEvent(new _MapEvent.default(_MapEventType.default.POSTRENDER, this, frameState));
+ this.postRenderTimeoutHandle_ = setTimeout(this.handlePostRender.bind(this), 0);
+ };
+ /**
+ * Sets the layergroup of this map.
+ * @param {LayerGroup} layerGroup A layer group containing the layers in this map.
+ * @observable
+ * @api
+ */
+
+
+ PluggableMap.prototype.setLayerGroup = function (layerGroup) {
+ this.set(_MapProperty.default.LAYERGROUP, layerGroup);
+ };
+ /**
+ * Set the size of this map.
+ * @param {import("./size.js").Size|undefined} size The size in pixels of the map in the DOM.
+ * @observable
+ * @api
+ */
+
+
+ PluggableMap.prototype.setSize = function (size) {
+ this.set(_MapProperty.default.SIZE, size);
+ };
+ /**
+ * Set the target element to render this map into.
+ * @param {HTMLElement|string|undefined} target The Element or id of the Element
+ * that the map is rendered in.
+ * @observable
+ * @api
+ */
+
+
+ PluggableMap.prototype.setTarget = function (target) {
+ this.set(_MapProperty.default.TARGET, target);
+ };
+ /**
+ * Set the view for this map.
+ * @param {View} view The view that controls this map.
+ * @observable
+ * @api
+ */
+
+
+ PluggableMap.prototype.setView = function (view) {
+ this.set(_MapProperty.default.VIEW, view);
+ };
+ /**
+ * Force a recalculation of the map viewport size. This should be called when
+ * third-party code changes the size of the map viewport.
+ * @api
+ */
+
+
+ PluggableMap.prototype.updateSize = function () {
+ var targetElement = this.getTargetElement();
+
+ if (!targetElement) {
+ this.setSize(undefined);
+ } else {
+ var computedStyle = getComputedStyle(targetElement);
+ this.setSize([targetElement.offsetWidth - parseFloat(computedStyle['borderLeftWidth']) - parseFloat(computedStyle['paddingLeft']) - parseFloat(computedStyle['paddingRight']) - parseFloat(computedStyle['borderRightWidth']), targetElement.offsetHeight - parseFloat(computedStyle['borderTopWidth']) - parseFloat(computedStyle['paddingTop']) - parseFloat(computedStyle['paddingBottom']) - parseFloat(computedStyle['borderBottomWidth'])]);
+ }
+
+ this.updateViewportSize_();
+ };
+ /**
+ * Recomputes the viewport size and save it on the view object (if any)
+ * @private
+ */
+
+
+ PluggableMap.prototype.updateViewportSize_ = function () {
+ var view = this.getView();
+
+ if (view) {
+ var size = undefined;
+ var computedStyle = getComputedStyle(this.viewport_);
+
+ if (computedStyle.width && computedStyle.height) {
+ size = [parseInt(computedStyle.width, 10), parseInt(computedStyle.height, 10)];
+ }
+
+ view.setViewportSize(size);
+ }
+ };
+
+ return PluggableMap;
+}(_Object.default);
+/**
+ * @param {MapOptions} options Map options.
+ * @return {MapOptionsInternal} Internal map options.
+ */
+
+
+function createOptionsInternal(options) {
+ /**
+ * @type {HTMLElement|Document}
+ */
+ var keyboardEventTarget = null;
+
+ if (options.keyboardEventTarget !== undefined) {
+ keyboardEventTarget = typeof options.keyboardEventTarget === 'string' ? document.getElementById(options.keyboardEventTarget) : options.keyboardEventTarget;
+ }
+ /**
+ * @type {Object<string, *>}
+ */
+
+
+ var values = {};
+ var layerGroup = options.layers && typeof
+ /** @type {?} */
+ options.layers.getLayers === 'function' ?
+ /** @type {LayerGroup} */
+ options.layers : new _Group.default({
+ layers:
+ /** @type {Collection} */
+ options.layers
+ });
+ values[_MapProperty.default.LAYERGROUP] = layerGroup;
+ values[_MapProperty.default.TARGET] = options.target;
+ values[_MapProperty.default.VIEW] = options.view !== undefined ? options.view : new _View.default();
+ var controls;
+
+ if (options.controls !== undefined) {
+ if (Array.isArray(options.controls)) {
+ controls = new _Collection.default(options.controls.slice());
+ } else {
+ (0, _asserts.assert)(typeof
+ /** @type {?} */
+ options.controls.getArray === 'function', 47); // Expected `controls` to be an array or an `import("./Collection.js").Collection`
+
+ controls =
+ /** @type {Collection} */
+ options.controls;
+ }
+ }
+
+ var interactions;
+
+ if (options.interactions !== undefined) {
+ if (Array.isArray(options.interactions)) {
+ interactions = new _Collection.default(options.interactions.slice());
+ } else {
+ (0, _asserts.assert)(typeof
+ /** @type {?} */
+ options.interactions.getArray === 'function', 48); // Expected `interactions` to be an array or an `import("./Collection.js").Collection`
+
+ interactions =
+ /** @type {Collection} */
+ options.interactions;
+ }
+ }
+
+ var overlays;
+
+ if (options.overlays !== undefined) {
+ if (Array.isArray(options.overlays)) {
+ overlays = new _Collection.default(options.overlays.slice());
+ } else {
+ (0, _asserts.assert)(typeof
+ /** @type {?} */
+ options.overlays.getArray === 'function', 49); // Expected `overlays` to be an array or an `import("./Collection.js").Collection`
+
+ overlays = options.overlays;
+ }
+ } else {
+ overlays = new _Collection.default();
+ }
+
+ return {
+ controls: controls,
+ interactions: interactions,
+ keyboardEventTarget: keyboardEventTarget,
+ overlays: overlays,
+ values: values
+ };
+}
+
+var _default = PluggableMap;
+exports.default = _default;
+},{"./Object.js":"../../../node_modules/ol/Object.js","./Collection.js":"../../../node_modules/ol/Collection.js","./CollectionEventType.js":"../../../node_modules/ol/CollectionEventType.js","./events/EventType.js":"../../../node_modules/ol/events/EventType.js","./layer/Group.js":"../../../node_modules/ol/layer/Group.js","./MapBrowserEvent.js":"../../../node_modules/ol/MapBrowserEvent.js","./MapBrowserEventHandler.js":"../../../node_modules/ol/MapBrowserEventHandler.js","./MapBrowserEventType.js":"../../../node_modules/ol/MapBrowserEventType.js","./MapEvent.js":"../../../node_modules/ol/MapEvent.js","./MapEventType.js":"../../../node_modules/ol/MapEventType.js","./MapProperty.js":"../../../node_modules/ol/MapProperty.js","./ObjectEventType.js":"../../../node_modules/ol/ObjectEventType.js","./pointer/EventType.js":"../../../node_modules/ol/pointer/EventType.js","./render/EventType.js":"../../../node_modules/ol/render/EventType.js","./TileQueue.js":"../../../node_modules/ol/TileQueue.js","./View.js":"../../../node_modules/ol/View.js","./ViewHint.js":"../../../node_modules/ol/ViewHint.js","./has.js":"../../../node_modules/ol/has.js","./functions.js":"../../../node_modules/ol/functions.js","./transform.js":"../../../node_modules/ol/transform.js","./asserts.js":"../../../node_modules/ol/asserts.js","./extent.js":"../../../node_modules/ol/extent.js","./proj.js":"../../../node_modules/ol/proj.js","./size.js":"../../../node_modules/ol/size.js","./events.js":"../../../node_modules/ol/events.js","./dom.js":"../../../node_modules/ol/dom.js"}],"../../../node_modules/ol/control/Control.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Object = _interopRequireDefault(require("../Object.js"));
+
+var _MapEventType = _interopRequireDefault(require("../MapEventType.js"));
+
+var _functions = require("../functions.js");
+
+var _events = require("../events.js");
+
+var _dom = require("../dom.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/control/Control
+ */
+
+
+/**
+ * @typedef {Object} Options
+ * @property {HTMLElement} [element] The element is the control's
+ * container element. This only needs to be specified if you're developing
+ * a custom control.
+ * @property {function(import("../MapEvent.js").default):void} [render] Function called when
+ * the control should be re-rendered. This is called in a `requestAnimationFrame`
+ * callback.
+ * @property {HTMLElement|string} [target] Specify a target if you want
+ * the control to be rendered outside of the map's viewport.
+ */
+
+/**
+ * @classdesc
+ * A control is a visible widget with a DOM element in a fixed position on the
+ * screen. They can involve user input (buttons), or be informational only;
+ * the position is determined using CSS. By default these are placed in the
+ * container with CSS class name `ol-overlaycontainer-stopevent`, but can use
+ * any outside DOM element.
+ *
+ * This is the base class for controls. You can use it for simple custom
+ * controls by creating the element with listeners, creating an instance:
+ * ```js
+ * var myControl = new Control({element: myElement});
+ * ```
+ * and then adding this to the map.
+ *
+ * The main advantage of having this as a control rather than a simple separate
+ * DOM element is that preventing propagation is handled for you. Controls
+ * will also be objects in a {@link module:ol/Collection~Collection}, so you can use their methods.
+ *
+ * You can also extend this base for your own control class. See
+ * examples/custom-controls for an example of how to do this.
+ *
+ * @api
+ */
+var Control =
+/** @class */
+function (_super) {
+ __extends(Control, _super);
+ /**
+ * @param {Options} options Control options.
+ */
+
+
+ function Control(options) {
+ var _this = _super.call(this) || this;
+
+ var element = options.element;
+
+ if (element && !options.target && !element.style.pointerEvents) {
+ element.style.pointerEvents = 'auto';
+ }
+ /**
+ * @protected
+ * @type {HTMLElement}
+ */
+
+
+ _this.element = element ? element : null;
+ /**
+ * @private
+ * @type {HTMLElement}
+ */
+
+ _this.target_ = null;
+ /**
+ * @private
+ * @type {import("../PluggableMap.js").default}
+ */
+
+ _this.map_ = null;
+ /**
+ * @protected
+ * @type {!Array<import("../events.js").EventsKey>}
+ */
+
+ _this.listenerKeys = [];
+
+ if (options.render) {
+ _this.render = options.render;
+ }
+
+ if (options.target) {
+ _this.setTarget(options.target);
+ }
+
+ return _this;
+ }
+ /**
+ * Clean up.
+ */
+
+
+ Control.prototype.disposeInternal = function () {
+ (0, _dom.removeNode)(this.element);
+
+ _super.prototype.disposeInternal.call(this);
+ };
+ /**
+ * Get the map associated with this control.
+ * @return {import("../PluggableMap.js").default} Map.
+ * @api
+ */
+
+
+ Control.prototype.getMap = function () {
+ return this.map_;
+ };
+ /**
+ * Remove the control from its current map and attach it to the new map.
+ * Subclasses may set up event handlers to get notified about changes to
+ * the map here.
+ * @param {import("../PluggableMap.js").default} map Map.
+ * @api
+ */
+
+
+ Control.prototype.setMap = function (map) {
+ if (this.map_) {
+ (0, _dom.removeNode)(this.element);
+ }
+
+ for (var i = 0, ii = this.listenerKeys.length; i < ii; ++i) {
+ (0, _events.unlistenByKey)(this.listenerKeys[i]);
+ }
+
+ this.listenerKeys.length = 0;
+ this.map_ = map;
+
+ if (this.map_) {
+ var target = this.target_ ? this.target_ : map.getOverlayContainerStopEvent();
+ target.appendChild(this.element);
+
+ if (this.render !== _functions.VOID) {
+ this.listenerKeys.push((0, _events.listen)(map, _MapEventType.default.POSTRENDER, this.render, this));
+ }
+
+ map.render();
+ }
+ };
+ /**
+ * Renders the control.
+ * @param {import("../MapEvent.js").default} mapEvent Map event.
+ * @api
+ */
+
+
+ Control.prototype.render = function (mapEvent) {};
+ /**
+ * This function is used to set a target element for the control. It has no
+ * effect if it is called after the control has been added to the map (i.e.
+ * after `setMap` is called on the control). If no `target` is set in the
+ * options passed to the control constructor and if `setTarget` is not called
+ * then the control is added to the map's overlay container.
+ * @param {HTMLElement|string} target Target.
+ * @api
+ */
+
+
+ Control.prototype.setTarget = function (target) {
+ this.target_ = typeof target === 'string' ? document.getElementById(target) : target;
+ };
+
+ return Control;
+}(_Object.default);
+
+var _default = Control;
+exports.default = _default;
+},{"../Object.js":"../../../node_modules/ol/Object.js","../MapEventType.js":"../../../node_modules/ol/MapEventType.js","../functions.js":"../../../node_modules/ol/functions.js","../events.js":"../../../node_modules/ol/events.js","../dom.js":"../../../node_modules/ol/dom.js"}],"../../../node_modules/ol/control/Attribution.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Control = _interopRequireDefault(require("./Control.js"));
+
+var _EventType = _interopRequireDefault(require("../events/EventType.js"));
+
+var _css = require("../css.js");
+
+var _array = require("../array.js");
+
+var _Layer = require("../layer/Layer.js");
+
+var _dom = require("../dom.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/control/Attribution
+ */
+
+
+/**
+ * @typedef {Object} Options
+ * @property {string} [className='ol-attribution'] CSS class name.
+ * @property {HTMLElement|string} [target] Specify a target if you
+ * want the control to be rendered outside of the map's
+ * viewport.
+ * @property {boolean} [collapsible] Specify if attributions can
+ * be collapsed. If not specified, sources control this behavior with their
+ * `attributionsCollapsible` setting.
+ * @property {boolean} [collapsed=true] Specify if attributions should
+ * be collapsed at startup.
+ * @property {string} [tipLabel='Attributions'] Text label to use for the button tip.
+ * @property {string} [label='i'] Text label to use for the
+ * collapsed attributions button.
+ * Instead of text, also an element (e.g. a `span` element) can be used.
+ * @property {string|HTMLElement} [collapseLabel='»'] Text label to use
+ * for the expanded attributions button.
+ * Instead of text, also an element (e.g. a `span` element) can be used.
+ * @property {function(import("../MapEvent.js").default):void} [render] Function called when
+ * the control should be re-rendered. This is called in a `requestAnimationFrame`
+ * callback.
+ */
+
+/**
+ * @classdesc
+ * Control to show all the attributions associated with the layer sources
+ * in the map. This control is one of the default controls included in maps.
+ * By default it will show in the bottom right portion of the map, but this can
+ * be changed by using a css selector for `.ol-attribution`.
+ *
+ * @api
+ */
+var Attribution =
+/** @class */
+function (_super) {
+ __extends(Attribution, _super);
+ /**
+ * @param {Options=} opt_options Attribution options.
+ */
+
+
+ function Attribution(opt_options) {
+ var _this = this;
+
+ var options = opt_options ? opt_options : {};
+ _this = _super.call(this, {
+ element: document.createElement('div'),
+ render: options.render,
+ target: options.target
+ }) || this;
+ /**
+ * @private
+ * @type {HTMLElement}
+ */
+
+ _this.ulElement_ = document.createElement('ul');
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ _this.collapsed_ = options.collapsed !== undefined ? options.collapsed : true;
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ _this.overrideCollapsible_ = options.collapsible !== undefined;
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ _this.collapsible_ = options.collapsible !== undefined ? options.collapsible : true;
+
+ if (!_this.collapsible_) {
+ _this.collapsed_ = false;
+ }
+
+ var className = options.className !== undefined ? options.className : 'ol-attribution';
+ var tipLabel = options.tipLabel !== undefined ? options.tipLabel : 'Attributions';
+ var collapseLabel = options.collapseLabel !== undefined ? options.collapseLabel : '\u00BB';
+
+ if (typeof collapseLabel === 'string') {
+ /**
+ * @private
+ * @type {HTMLElement}
+ */
+ _this.collapseLabel_ = document.createElement('span');
+ _this.collapseLabel_.textContent = collapseLabel;
+ } else {
+ _this.collapseLabel_ = collapseLabel;
+ }
+
+ var label = options.label !== undefined ? options.label : 'i';
+
+ if (typeof label === 'string') {
+ /**
+ * @private
+ * @type {HTMLElement}
+ */
+ _this.label_ = document.createElement('span');
+ _this.label_.textContent = label;
+ } else {
+ _this.label_ = label;
+ }
+
+ var activeLabel = _this.collapsible_ && !_this.collapsed_ ? _this.collapseLabel_ : _this.label_;
+ var button = document.createElement('button');
+ button.setAttribute('type', 'button');
+ button.title = tipLabel;
+ button.appendChild(activeLabel);
+ button.addEventListener(_EventType.default.CLICK, _this.handleClick_.bind(_this), false);
+ var cssClasses = className + ' ' + _css.CLASS_UNSELECTABLE + ' ' + _css.CLASS_CONTROL + (_this.collapsed_ && _this.collapsible_ ? ' ' + _css.CLASS_COLLAPSED : '') + (_this.collapsible_ ? '' : ' ol-uncollapsible');
+ var element = _this.element;
+ element.className = cssClasses;
+ element.appendChild(_this.ulElement_);
+ element.appendChild(button);
+ /**
+ * A list of currently rendered resolutions.
+ * @type {Array<string>}
+ * @private
+ */
+
+ _this.renderedAttributions_ = [];
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ _this.renderedVisible_ = true;
+ return _this;
+ }
+ /**
+ * Collect a list of visible attributions and set the collapsible state.
+ * @param {import("../PluggableMap.js").FrameState} frameState Frame state.
+ * @return {Array<string>} Attributions.
+ * @private
+ */
+
+
+ Attribution.prototype.collectSourceAttributions_ = function (frameState) {
+ /**
+ * Used to determine if an attribution already exists.
+ * @type {!Object<string, boolean>}
+ */
+ var lookup = {};
+ /**
+ * A list of visible attributions.
+ * @type {Array<string>}
+ */
+
+ var visibleAttributions = [];
+ var layerStatesArray = frameState.layerStatesArray;
+
+ for (var i = 0, ii = layerStatesArray.length; i < ii; ++i) {
+ var layerState = layerStatesArray[i];
+
+ if (!(0, _Layer.inView)(layerState, frameState.viewState)) {
+ continue;
+ }
+
+ var source =
+ /** @type {import("../layer/Layer.js").default} */
+ layerState.layer.getSource();
+
+ if (!source) {
+ continue;
+ }
+
+ var attributionGetter = source.getAttributions();
+
+ if (!attributionGetter) {
+ continue;
+ }
+
+ var attributions = attributionGetter(frameState);
+
+ if (!attributions) {
+ continue;
+ }
+
+ if (!this.overrideCollapsible_ && source.getAttributionsCollapsible() === false) {
+ this.setCollapsible(false);
+ }
+
+ if (Array.isArray(attributions)) {
+ for (var j = 0, jj = attributions.length; j < jj; ++j) {
+ if (!(attributions[j] in lookup)) {
+ visibleAttributions.push(attributions[j]);
+ lookup[attributions[j]] = true;
+ }
+ }
+ } else {
+ if (!(attributions in lookup)) {
+ visibleAttributions.push(attributions);
+ lookup[attributions] = true;
+ }
+ }
+ }
+
+ return visibleAttributions;
+ };
+ /**
+ * @private
+ * @param {?import("../PluggableMap.js").FrameState} frameState Frame state.
+ */
+
+
+ Attribution.prototype.updateElement_ = function (frameState) {
+ if (!frameState) {
+ if (this.renderedVisible_) {
+ this.element.style.display = 'none';
+ this.renderedVisible_ = false;
+ }
+
+ return;
+ }
+
+ var attributions = this.collectSourceAttributions_(frameState);
+ var visible = attributions.length > 0;
+
+ if (this.renderedVisible_ != visible) {
+ this.element.style.display = visible ? '' : 'none';
+ this.renderedVisible_ = visible;
+ }
+
+ if ((0, _array.equals)(attributions, this.renderedAttributions_)) {
+ return;
+ }
+
+ (0, _dom.removeChildren)(this.ulElement_); // append the attributions
+
+ for (var i = 0, ii = attributions.length; i < ii; ++i) {
+ var element = document.createElement('li');
+ element.innerHTML = attributions[i];
+ this.ulElement_.appendChild(element);
+ }
+
+ this.renderedAttributions_ = attributions;
+ };
+ /**
+ * @param {MouseEvent} event The event to handle
+ * @private
+ */
+
+
+ Attribution.prototype.handleClick_ = function (event) {
+ event.preventDefault();
+ this.handleToggle_();
+ };
+ /**
+ * @private
+ */
+
+
+ Attribution.prototype.handleToggle_ = function () {
+ this.element.classList.toggle(_css.CLASS_COLLAPSED);
+
+ if (this.collapsed_) {
+ (0, _dom.replaceNode)(this.collapseLabel_, this.label_);
+ } else {
+ (0, _dom.replaceNode)(this.label_, this.collapseLabel_);
+ }
+
+ this.collapsed_ = !this.collapsed_;
+ };
+ /**
+ * Return `true` if the attribution is collapsible, `false` otherwise.
+ * @return {boolean} True if the widget is collapsible.
+ * @api
+ */
+
+
+ Attribution.prototype.getCollapsible = function () {
+ return this.collapsible_;
+ };
+ /**
+ * Set whether the attribution should be collapsible.
+ * @param {boolean} collapsible True if the widget is collapsible.
+ * @api
+ */
+
+
+ Attribution.prototype.setCollapsible = function (collapsible) {
+ if (this.collapsible_ === collapsible) {
+ return;
+ }
+
+ this.collapsible_ = collapsible;
+ this.element.classList.toggle('ol-uncollapsible');
+
+ if (!collapsible && this.collapsed_) {
+ this.handleToggle_();
+ }
+ };
+ /**
+ * Collapse or expand the attribution according to the passed parameter. Will
+ * not do anything if the attribution isn't collapsible or if the current
+ * collapsed state is already the one requested.
+ * @param {boolean} collapsed True if the widget is collapsed.
+ * @api
+ */
+
+
+ Attribution.prototype.setCollapsed = function (collapsed) {
+ if (!this.collapsible_ || this.collapsed_ === collapsed) {
+ return;
+ }
+
+ this.handleToggle_();
+ };
+ /**
+ * Return `true` when the attribution is currently collapsed or `false`
+ * otherwise.
+ * @return {boolean} True if the widget is collapsed.
+ * @api
+ */
+
+
+ Attribution.prototype.getCollapsed = function () {
+ return this.collapsed_;
+ };
+ /**
+ * Update the attribution element.
+ * @param {import("../MapEvent.js").default} mapEvent Map event.
+ * @override
+ */
+
+
+ Attribution.prototype.render = function (mapEvent) {
+ this.updateElement_(mapEvent.frameState);
+ };
+
+ return Attribution;
+}(_Control.default);
+
+var _default = Attribution;
+exports.default = _default;
+},{"./Control.js":"../../../node_modules/ol/control/Control.js","../events/EventType.js":"../../../node_modules/ol/events/EventType.js","../css.js":"../../../node_modules/ol/css.js","../array.js":"../../../node_modules/ol/array.js","../layer/Layer.js":"../../../node_modules/ol/layer/Layer.js","../dom.js":"../../../node_modules/ol/dom.js"}],"../../../node_modules/ol/control/Rotate.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Control = _interopRequireDefault(require("./Control.js"));
+
+var _EventType = _interopRequireDefault(require("../events/EventType.js"));
+
+var _css = require("../css.js");
+
+var _easing = require("../easing.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/control/Rotate
+ */
+
+
+/**
+ * @typedef {Object} Options
+ * @property {string} [className='ol-rotate'] CSS class name.
+ * @property {string|HTMLElement} [label='⇧'] Text label to use for the rotate button.
+ * Instead of text, also an element (e.g. a `span` element) can be used.
+ * @property {string} [tipLabel='Reset rotation'] Text label to use for the rotate tip.
+ * @property {number} [duration=250] Animation duration in milliseconds.
+ * @property {boolean} [autoHide=true] Hide the control when rotation is 0.
+ * @property {function(import("../MapEvent.js").default):void} [render] Function called when the control should
+ * be re-rendered. This is called in a `requestAnimationFrame` callback.
+ * @property {function():void} [resetNorth] Function called when the control is clicked.
+ * This will override the default `resetNorth`.
+ * @property {HTMLElement|string} [target] Specify a target if you want the control to be
+ * rendered outside of the map's viewport.
+ */
+
+/**
+ * @classdesc
+ * A button control to reset rotation to 0.
+ * To style this control use css selector `.ol-rotate`. A `.ol-hidden` css
+ * selector is added to the button when the rotation is 0.
+ *
+ * @api
+ */
+var Rotate =
+/** @class */
+function (_super) {
+ __extends(Rotate, _super);
+ /**
+ * @param {Options=} opt_options Rotate options.
+ */
+
+
+ function Rotate(opt_options) {
+ var _this = this;
+
+ var options = opt_options ? opt_options : {};
+ _this = _super.call(this, {
+ element: document.createElement('div'),
+ render: options.render,
+ target: options.target
+ }) || this;
+ var className = options.className !== undefined ? options.className : 'ol-rotate';
+ var label = options.label !== undefined ? options.label : '\u21E7';
+ /**
+ * @type {HTMLElement}
+ * @private
+ */
+
+ _this.label_ = null;
+
+ if (typeof label === 'string') {
+ _this.label_ = document.createElement('span');
+ _this.label_.className = 'ol-compass';
+ _this.label_.textContent = label;
+ } else {
+ _this.label_ = label;
+
+ _this.label_.classList.add('ol-compass');
+ }
+
+ var tipLabel = options.tipLabel ? options.tipLabel : 'Reset rotation';
+ var button = document.createElement('button');
+ button.className = className + '-reset';
+ button.setAttribute('type', 'button');
+ button.title = tipLabel;
+ button.appendChild(_this.label_);
+ button.addEventListener(_EventType.default.CLICK, _this.handleClick_.bind(_this), false);
+ var cssClasses = className + ' ' + _css.CLASS_UNSELECTABLE + ' ' + _css.CLASS_CONTROL;
+ var element = _this.element;
+ element.className = cssClasses;
+ element.appendChild(button);
+ _this.callResetNorth_ = options.resetNorth ? options.resetNorth : undefined;
+ /**
+ * @type {number}
+ * @private
+ */
+
+ _this.duration_ = options.duration !== undefined ? options.duration : 250;
+ /**
+ * @type {boolean}
+ * @private
+ */
+
+ _this.autoHide_ = options.autoHide !== undefined ? options.autoHide : true;
+ /**
+ * @private
+ * @type {number|undefined}
+ */
+
+ _this.rotation_ = undefined;
+
+ if (_this.autoHide_) {
+ _this.element.classList.add(_css.CLASS_HIDDEN);
+ }
+
+ return _this;
+ }
+ /**
+ * @param {MouseEvent} event The event to handle
+ * @private
+ */
+
+
+ Rotate.prototype.handleClick_ = function (event) {
+ event.preventDefault();
+
+ if (this.callResetNorth_ !== undefined) {
+ this.callResetNorth_();
+ } else {
+ this.resetNorth_();
+ }
+ };
+ /**
+ * @private
+ */
+
+
+ Rotate.prototype.resetNorth_ = function () {
+ var map = this.getMap();
+ var view = map.getView();
+
+ if (!view) {
+ // the map does not have a view, so we can't act
+ // upon it
+ return;
+ }
+
+ var rotation = view.getRotation();
+
+ if (rotation !== undefined) {
+ if (this.duration_ > 0 && rotation % (2 * Math.PI) !== 0) {
+ view.animate({
+ rotation: 0,
+ duration: this.duration_,
+ easing: _easing.easeOut
+ });
+ } else {
+ view.setRotation(0);
+ }
+ }
+ };
+ /**
+ * Update the rotate control element.
+ * @param {import("../MapEvent.js").default} mapEvent Map event.
+ * @override
+ */
+
+
+ Rotate.prototype.render = function (mapEvent) {
+ var frameState = mapEvent.frameState;
+
+ if (!frameState) {
+ return;
+ }
+
+ var rotation = frameState.viewState.rotation;
+
+ if (rotation != this.rotation_) {
+ var transform = 'rotate(' + rotation + 'rad)';
+
+ if (this.autoHide_) {
+ var contains = this.element.classList.contains(_css.CLASS_HIDDEN);
+
+ if (!contains && rotation === 0) {
+ this.element.classList.add(_css.CLASS_HIDDEN);
+ } else if (contains && rotation !== 0) {
+ this.element.classList.remove(_css.CLASS_HIDDEN);
+ }
+ }
+
+ this.label_.style.transform = transform;
+ }
+
+ this.rotation_ = rotation;
+ };
+
+ return Rotate;
+}(_Control.default);
+
+var _default = Rotate;
+exports.default = _default;
+},{"./Control.js":"../../../node_modules/ol/control/Control.js","../events/EventType.js":"../../../node_modules/ol/events/EventType.js","../css.js":"../../../node_modules/ol/css.js","../easing.js":"../../../node_modules/ol/easing.js"}],"../../../node_modules/ol/control/Zoom.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Control = _interopRequireDefault(require("./Control.js"));
+
+var _EventType = _interopRequireDefault(require("../events/EventType.js"));
+
+var _css = require("../css.js");
+
+var _easing = require("../easing.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/control/Zoom
+ */
+
+
+/**
+ * @typedef {Object} Options
+ * @property {number} [duration=250] Animation duration in milliseconds.
+ * @property {string} [className='ol-zoom'] CSS class name.
+ * @property {string|HTMLElement} [zoomInLabel='+'] Text label to use for the zoom-in
+ * button. Instead of text, also an element (e.g. a `span` element) can be used.
+ * @property {string|HTMLElement} [zoomOutLabel='-'] Text label to use for the zoom-out button.
+ * Instead of text, also an element (e.g. a `span` element) can be used.
+ * @property {string} [zoomInTipLabel='Zoom in'] Text label to use for the button tip.
+ * @property {string} [zoomOutTipLabel='Zoom out'] Text label to use for the button tip.
+ * @property {number} [delta=1] The zoom delta applied on each click.
+ * @property {HTMLElement|string} [target] Specify a target if you want the control to be
+ * rendered outside of the map's viewport.
+ */
+
+/**
+ * @classdesc
+ * A control with 2 buttons, one for zoom in and one for zoom out.
+ * This control is one of the default controls of a map. To style this control
+ * use css selectors `.ol-zoom-in` and `.ol-zoom-out`.
+ *
+ * @api
+ */
+var Zoom =
+/** @class */
+function (_super) {
+ __extends(Zoom, _super);
+ /**
+ * @param {Options=} opt_options Zoom options.
+ */
+
+
+ function Zoom(opt_options) {
+ var _this = this;
+
+ var options = opt_options ? opt_options : {};
+ _this = _super.call(this, {
+ element: document.createElement('div'),
+ target: options.target
+ }) || this;
+ var className = options.className !== undefined ? options.className : 'ol-zoom';
+ var delta = options.delta !== undefined ? options.delta : 1;
+ var zoomInLabel = options.zoomInLabel !== undefined ? options.zoomInLabel : '+';
+ var zoomOutLabel = options.zoomOutLabel !== undefined ? options.zoomOutLabel : '\u2212';
+ var zoomInTipLabel = options.zoomInTipLabel !== undefined ? options.zoomInTipLabel : 'Zoom in';
+ var zoomOutTipLabel = options.zoomOutTipLabel !== undefined ? options.zoomOutTipLabel : 'Zoom out';
+ var inElement = document.createElement('button');
+ inElement.className = className + '-in';
+ inElement.setAttribute('type', 'button');
+ inElement.title = zoomInTipLabel;
+ inElement.appendChild(typeof zoomInLabel === 'string' ? document.createTextNode(zoomInLabel) : zoomInLabel);
+ inElement.addEventListener(_EventType.default.CLICK, _this.handleClick_.bind(_this, delta), false);
+ var outElement = document.createElement('button');
+ outElement.className = className + '-out';
+ outElement.setAttribute('type', 'button');
+ outElement.title = zoomOutTipLabel;
+ outElement.appendChild(typeof zoomOutLabel === 'string' ? document.createTextNode(zoomOutLabel) : zoomOutLabel);
+ outElement.addEventListener(_EventType.default.CLICK, _this.handleClick_.bind(_this, -delta), false);
+ var cssClasses = className + ' ' + _css.CLASS_UNSELECTABLE + ' ' + _css.CLASS_CONTROL;
+ var element = _this.element;
+ element.className = cssClasses;
+ element.appendChild(inElement);
+ element.appendChild(outElement);
+ /**
+ * @type {number}
+ * @private
+ */
+
+ _this.duration_ = options.duration !== undefined ? options.duration : 250;
+ return _this;
+ }
+ /**
+ * @param {number} delta Zoom delta.
+ * @param {MouseEvent} event The event to handle
+ * @private
+ */
+
+
+ Zoom.prototype.handleClick_ = function (delta, event) {
+ event.preventDefault();
+ this.zoomByDelta_(delta);
+ };
+ /**
+ * @param {number} delta Zoom delta.
+ * @private
+ */
+
+
+ Zoom.prototype.zoomByDelta_ = function (delta) {
+ var map = this.getMap();
+ var view = map.getView();
+
+ if (!view) {
+ // the map does not have a view, so we can't act
+ // upon it
+ return;
+ }
+
+ var currentZoom = view.getZoom();
+
+ if (currentZoom !== undefined) {
+ var newZoom = view.getConstrainedZoom(currentZoom + delta);
+
+ if (this.duration_ > 0) {
+ if (view.getAnimating()) {
+ view.cancelAnimations();
+ }
+
+ view.animate({
+ zoom: newZoom,
+ duration: this.duration_,
+ easing: _easing.easeOut
+ });
+ } else {
+ view.setZoom(newZoom);
+ }
+ }
+ };
+
+ return Zoom;
+}(_Control.default);
+
+var _default = Zoom;
+exports.default = _default;
+},{"./Control.js":"../../../node_modules/ol/control/Control.js","../events/EventType.js":"../../../node_modules/ol/events/EventType.js","../css.js":"../../../node_modules/ol/css.js","../easing.js":"../../../node_modules/ol/easing.js"}],"../../../node_modules/ol/control/FullScreen.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Control = _interopRequireDefault(require("./Control.js"));
+
+var _EventType = _interopRequireDefault(require("../events/EventType.js"));
+
+var _css = require("../css.js");
+
+var _events = require("../events.js");
+
+var _dom = require("../dom.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/control/FullScreen
+ */
+
+
+var events = ['fullscreenchange', 'webkitfullscreenchange', 'MSFullscreenChange'];
+/**
+ * @enum {string}
+ */
+
+var FullScreenEventType = {
+ /**
+ * Triggered after the map entered fullscreen.
+ * @event FullScreenEventType#enterfullscreen
+ * @api
+ */
+ ENTERFULLSCREEN: 'enterfullscreen',
+
+ /**
+ * Triggered after the map leave fullscreen.
+ * @event FullScreenEventType#leavefullscreen
+ * @api
+ */
+ LEAVEFULLSCREEN: 'leavefullscreen'
+};
+/**
+ * @typedef {Object} Options
+ * @property {string} [className='ol-full-screen'] CSS class name.
+ * @property {string|Text} [label='\u2922'] Text label to use for the button.
+ * Instead of text, also an element (e.g. a `span` element) can be used.
+ * @property {string|Text} [labelActive='\u00d7'] Text label to use for the
+ * button when full-screen is active.
+ * Instead of text, also an element (e.g. a `span` element) can be used.
+ * @property {string} [tipLabel='Toggle full-screen'] Text label to use for the button tip.
+ * @property {boolean} [keys=false] Full keyboard access.
+ * @property {HTMLElement|string} [target] Specify a target if you want the
+ * control to be rendered outside of the map's viewport.
+ * @property {HTMLElement|string} [source] The element to be displayed
+ * fullscreen. When not provided, the element containing the map viewport will
+ * be displayed fullscreen.
+ */
+
+/**
+ * @classdesc
+ * Provides a button that when clicked fills up the full screen with the map.
+ * The full screen source element is by default the element containing the map viewport unless
+ * overridden by providing the `source` option. In which case, the dom
+ * element introduced using this parameter will be displayed in full screen.
+ *
+ * When in full screen mode, a close button is shown to exit full screen mode.
+ * The [Fullscreen API](http://www.w3.org/TR/fullscreen/) is used to
+ * toggle the map in full screen mode.
+ *
+ * @fires FullScreenEventType#enterfullscreen
+ * @fires FullScreenEventType#leavefullscreen
+ * @api
+ */
+
+var FullScreen =
+/** @class */
+function (_super) {
+ __extends(FullScreen, _super);
+ /**
+ * @param {Options=} opt_options Options.
+ */
+
+
+ function FullScreen(opt_options) {
+ var _this = this;
+
+ var options = opt_options ? opt_options : {};
+ _this = _super.call(this, {
+ element: document.createElement('div'),
+ target: options.target
+ }) || this;
+ /**
+ * @private
+ * @type {string}
+ */
+
+ _this.cssClassName_ = options.className !== undefined ? options.className : 'ol-full-screen';
+ var label = options.label !== undefined ? options.label : '\u2922';
+ /**
+ * @private
+ * @type {Text}
+ */
+
+ _this.labelNode_ = typeof label === 'string' ? document.createTextNode(label) : label;
+ var labelActive = options.labelActive !== undefined ? options.labelActive : '\u00d7';
+ /**
+ * @private
+ * @type {Text}
+ */
+
+ _this.labelActiveNode_ = typeof labelActive === 'string' ? document.createTextNode(labelActive) : labelActive;
+ /**
+ * @private
+ * @type {HTMLElement}
+ */
+
+ _this.button_ = document.createElement('button');
+ var tipLabel = options.tipLabel ? options.tipLabel : 'Toggle full-screen';
+
+ _this.setClassName_(_this.button_, isFullScreen());
+
+ _this.button_.setAttribute('type', 'button');
+
+ _this.button_.title = tipLabel;
+
+ _this.button_.appendChild(_this.labelNode_);
+
+ _this.button_.addEventListener(_EventType.default.CLICK, _this.handleClick_.bind(_this), false);
+
+ var cssClasses = _this.cssClassName_ + ' ' + _css.CLASS_UNSELECTABLE + ' ' + _css.CLASS_CONTROL + ' ' + (!isFullScreenSupported() ? _css.CLASS_UNSUPPORTED : '');
+ var element = _this.element;
+ element.className = cssClasses;
+ element.appendChild(_this.button_);
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ _this.keys_ = options.keys !== undefined ? options.keys : false;
+ /**
+ * @private
+ * @type {HTMLElement|string|undefined}
+ */
+
+ _this.source_ = options.source;
+ return _this;
+ }
+ /**
+ * @param {MouseEvent} event The event to handle
+ * @private
+ */
+
+
+ FullScreen.prototype.handleClick_ = function (event) {
+ event.preventDefault();
+ this.handleFullScreen_();
+ };
+ /**
+ * @private
+ */
+
+
+ FullScreen.prototype.handleFullScreen_ = function () {
+ if (!isFullScreenSupported()) {
+ return;
+ }
+
+ var map = this.getMap();
+
+ if (!map) {
+ return;
+ }
+
+ if (isFullScreen()) {
+ exitFullScreen();
+ } else {
+ var element = void 0;
+
+ if (this.source_) {
+ element = typeof this.source_ === 'string' ? document.getElementById(this.source_) : this.source_;
+ } else {
+ element = map.getTargetElement();
+ }
+
+ if (this.keys_) {
+ requestFullScreenWithKeys(element);
+ } else {
+ requestFullScreen(element);
+ }
+ }
+ };
+ /**
+ * @private
+ */
+
+
+ FullScreen.prototype.handleFullScreenChange_ = function () {
+ var map = this.getMap();
+
+ if (isFullScreen()) {
+ this.setClassName_(this.button_, true);
+ (0, _dom.replaceNode)(this.labelActiveNode_, this.labelNode_);
+ this.dispatchEvent(FullScreenEventType.ENTERFULLSCREEN);
+ } else {
+ this.setClassName_(this.button_, false);
+ (0, _dom.replaceNode)(this.labelNode_, this.labelActiveNode_);
+ this.dispatchEvent(FullScreenEventType.LEAVEFULLSCREEN);
+ }
+
+ if (map) {
+ map.updateSize();
+ }
+ };
+ /**
+ * @param {HTMLElement} element Target element
+ * @param {boolean} fullscreen True if fullscreen class name should be active
+ * @private
+ */
+
+
+ FullScreen.prototype.setClassName_ = function (element, fullscreen) {
+ var activeClassName = this.cssClassName_ + '-true';
+ var inactiveClassName = this.cssClassName_ + '-false';
+ var nextClassName = fullscreen ? activeClassName : inactiveClassName;
+ element.classList.remove(activeClassName);
+ element.classList.remove(inactiveClassName);
+ element.classList.add(nextClassName);
+ };
+ /**
+ * Remove the control from its current map and attach it to the new map.
+ * Subclasses may set up event handlers to get notified about changes to
+ * the map here.
+ * @param {import("../PluggableMap.js").default} map Map.
+ * @api
+ */
+
+
+ FullScreen.prototype.setMap = function (map) {
+ _super.prototype.setMap.call(this, map);
+
+ if (map) {
+ for (var i = 0, ii = events.length; i < ii; ++i) {
+ this.listenerKeys.push((0, _events.listen)(document, events[i], this.handleFullScreenChange_, this));
+ }
+ }
+ };
+
+ return FullScreen;
+}(_Control.default);
+/**
+ * @return {boolean} Fullscreen is supported by the current platform.
+ */
+
+
+function isFullScreenSupported() {
+ var body = document.body;
+ return !!(body['webkitRequestFullscreen'] || body['msRequestFullscreen'] && document['msFullscreenEnabled'] || body.requestFullscreen && document.fullscreenEnabled);
+}
+/**
+ * @return {boolean} Element is currently in fullscreen.
+ */
+
+
+function isFullScreen() {
+ return !!(document['webkitIsFullScreen'] || document['msFullscreenElement'] || document.fullscreenElement);
+}
+/**
+ * Request to fullscreen an element.
+ * @param {HTMLElement} element Element to request fullscreen
+ */
+
+
+function requestFullScreen(element) {
+ if (element.requestFullscreen) {
+ element.requestFullscreen();
+ } else if (element['msRequestFullscreen']) {
+ element['msRequestFullscreen']();
+ } else if (element['webkitRequestFullscreen']) {
+ element['webkitRequestFullscreen']();
+ }
+}
+/**
+ * Request to fullscreen an element with keyboard input.
+ * @param {HTMLElement} element Element to request fullscreen
+ */
+
+
+function requestFullScreenWithKeys(element) {
+ if (element['webkitRequestFullscreen']) {
+ element['webkitRequestFullscreen']();
+ } else {
+ requestFullScreen(element);
+ }
+}
+/**
+ * Exit fullscreen.
+ */
+
+
+function exitFullScreen() {
+ if (document.exitFullscreen) {
+ document.exitFullscreen();
+ } else if (document['msExitFullscreen']) {
+ document['msExitFullscreen']();
+ } else if (document['webkitExitFullscreen']) {
+ document['webkitExitFullscreen']();
+ }
+}
+
+var _default = FullScreen;
+exports.default = _default;
+},{"./Control.js":"../../../node_modules/ol/control/Control.js","../events/EventType.js":"../../../node_modules/ol/events/EventType.js","../css.js":"../../../node_modules/ol/css.js","../events.js":"../../../node_modules/ol/events.js","../dom.js":"../../../node_modules/ol/dom.js"}],"../../../node_modules/ol/control/MousePosition.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Control = _interopRequireDefault(require("./Control.js"));
+
+var _EventType = _interopRequireDefault(require("../pointer/EventType.js"));
+
+var _Object = require("../Object.js");
+
+var _proj = require("../proj.js");
+
+var _events = require("../events.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module ol/control/MousePosition
+ */
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+
+/**
+ * @type {string}
+ */
+var PROJECTION = 'projection';
+/**
+ * @type {string}
+ */
+
+var COORDINATE_FORMAT = 'coordinateFormat';
+/**
+ * @typedef {Object} Options
+ * @property {string} [className='ol-mouse-position'] CSS class name.
+ * @property {import("../coordinate.js").CoordinateFormat} [coordinateFormat] Coordinate format.
+ * @property {import("../proj.js").ProjectionLike} [projection] Projection. Default is the view projection.
+ * @property {function(import("../MapEvent.js").default):void} [render] Function called when the
+ * control should be re-rendered. This is called in a `requestAnimationFrame`
+ * callback.
+ * @property {HTMLElement|string} [target] Specify a target if you want the
+ * control to be rendered outside of the map's viewport.
+ * @property {string} [undefinedHTML=' '] Markup to show when coordinates are not
+ * available (e.g. when the pointer leaves the map viewport). By default, the last position
+ * will be replaced with `' '` (` `) when the pointer leaves the viewport. To
+ * retain the last rendered position, set this option to something falsey (like an empty
+ * string `''`).
+ */
+
+/**
+ * @classdesc
+ * A control to show the 2D coordinates of the mouse cursor. By default, these
+ * are in the view projection, but can be in any supported projection.
+ * By default the control is shown in the top right corner of the map, but this
+ * can be changed by using the css selector `.ol-mouse-position`.
+ *
+ * On touch devices, which usually do not have a mouse cursor, the coordinates
+ * of the currently touched position are shown.
+ *
+ * @api
+ */
+
+var MousePosition =
+/** @class */
+function (_super) {
+ __extends(MousePosition, _super);
+ /**
+ * @param {Options=} opt_options Mouse position options.
+ */
+
+
+ function MousePosition(opt_options) {
+ var _this = this;
+
+ var options = opt_options ? opt_options : {};
+ var element = document.createElement('div');
+ element.className = options.className !== undefined ? options.className : 'ol-mouse-position';
+ _this = _super.call(this, {
+ element: element,
+ render: options.render,
+ target: options.target
+ }) || this;
+
+ _this.addEventListener((0, _Object.getChangeEventType)(PROJECTION), _this.handleProjectionChanged_);
+
+ if (options.coordinateFormat) {
+ _this.setCoordinateFormat(options.coordinateFormat);
+ }
+
+ if (options.projection) {
+ _this.setProjection(options.projection);
+ }
+ /**
+ * @private
+ * @type {string}
+ */
+
+
+ _this.undefinedHTML_ = options.undefinedHTML !== undefined ? options.undefinedHTML : ' ';
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ _this.renderOnMouseOut_ = !!_this.undefinedHTML_;
+ /**
+ * @private
+ * @type {string}
+ */
+
+ _this.renderedHTML_ = element.innerHTML;
+ /**
+ * @private
+ * @type {?import("../proj/Projection.js").default}
+ */
+
+ _this.mapProjection_ = null;
+ /**
+ * @private
+ * @type {?import("../proj.js").TransformFunction}
+ */
+
+ _this.transform_ = null;
+ return _this;
+ }
+ /**
+ * @private
+ */
+
+
+ MousePosition.prototype.handleProjectionChanged_ = function () {
+ this.transform_ = null;
+ };
+ /**
+ * Return the coordinate format type used to render the current position or
+ * undefined.
+ * @return {import("../coordinate.js").CoordinateFormat|undefined} The format to render the current
+ * position in.
+ * @observable
+ * @api
+ */
+
+
+ MousePosition.prototype.getCoordinateFormat = function () {
+ return (
+ /** @type {import("../coordinate.js").CoordinateFormat|undefined} */
+ this.get(COORDINATE_FORMAT)
+ );
+ };
+ /**
+ * Return the projection that is used to report the mouse position.
+ * @return {import("../proj/Projection.js").default|undefined} The projection to report mouse
+ * position in.
+ * @observable
+ * @api
+ */
+
+
+ MousePosition.prototype.getProjection = function () {
+ return (
+ /** @type {import("../proj/Projection.js").default|undefined} */
+ this.get(PROJECTION)
+ );
+ };
+ /**
+ * @param {MouseEvent} event Browser event.
+ * @protected
+ */
+
+
+ MousePosition.prototype.handleMouseMove = function (event) {
+ var map = this.getMap();
+ this.updateHTML_(map.getEventPixel(event));
+ };
+ /**
+ * @param {Event} event Browser event.
+ * @protected
+ */
+
+
+ MousePosition.prototype.handleMouseOut = function (event) {
+ this.updateHTML_(null);
+ };
+ /**
+ * Remove the control from its current map and attach it to the new map.
+ * Subclasses may set up event handlers to get notified about changes to
+ * the map here.
+ * @param {import("../PluggableMap.js").default} map Map.
+ * @api
+ */
+
+
+ MousePosition.prototype.setMap = function (map) {
+ _super.prototype.setMap.call(this, map);
+
+ if (map) {
+ var viewport = map.getViewport();
+ this.listenerKeys.push((0, _events.listen)(viewport, _EventType.default.POINTERMOVE, this.handleMouseMove, this));
+
+ if (this.renderOnMouseOut_) {
+ this.listenerKeys.push((0, _events.listen)(viewport, _EventType.default.POINTEROUT, this.handleMouseOut, this));
+ }
+ }
+ };
+ /**
+ * Set the coordinate format type used to render the current position.
+ * @param {import("../coordinate.js").CoordinateFormat} format The format to render the current
+ * position in.
+ * @observable
+ * @api
+ */
+
+
+ MousePosition.prototype.setCoordinateFormat = function (format) {
+ this.set(COORDINATE_FORMAT, format);
+ };
+ /**
+ * Set the projection that is used to report the mouse position.
+ * @param {import("../proj.js").ProjectionLike} projection The projection to report mouse
+ * position in.
+ * @observable
+ * @api
+ */
+
+
+ MousePosition.prototype.setProjection = function (projection) {
+ this.set(PROJECTION, (0, _proj.get)(projection));
+ };
+ /**
+ * @param {?import("../pixel.js").Pixel} pixel Pixel.
+ * @private
+ */
+
+
+ MousePosition.prototype.updateHTML_ = function (pixel) {
+ var html = this.undefinedHTML_;
+
+ if (pixel && this.mapProjection_) {
+ if (!this.transform_) {
+ var projection = this.getProjection();
+
+ if (projection) {
+ this.transform_ = (0, _proj.getTransformFromProjections)(this.mapProjection_, projection);
+ } else {
+ this.transform_ = _proj.identityTransform;
+ }
+ }
+
+ var map = this.getMap();
+ var coordinate = map.getCoordinateFromPixelInternal(pixel);
+
+ if (coordinate) {
+ var userProjection = (0, _proj.getUserProjection)();
+
+ if (userProjection) {
+ this.transform_ = (0, _proj.getTransformFromProjections)(this.mapProjection_, userProjection);
+ }
+
+ this.transform_(coordinate, coordinate);
+ var coordinateFormat = this.getCoordinateFormat();
+
+ if (coordinateFormat) {
+ html = coordinateFormat(coordinate);
+ } else {
+ html = coordinate.toString();
+ }
+ }
+ }
+
+ if (!this.renderedHTML_ || html !== this.renderedHTML_) {
+ this.element.innerHTML = html;
+ this.renderedHTML_ = html;
+ }
+ };
+ /**
+ * Update the projection. Rendering of the coordinates is done in
+ * `handleMouseMove` and `handleMouseUp`.
+ * @param {import("../MapEvent.js").default} mapEvent Map event.
+ * @override
+ */
+
+
+ MousePosition.prototype.render = function (mapEvent) {
+ var frameState = mapEvent.frameState;
+
+ if (!frameState) {
+ this.mapProjection_ = null;
+ } else {
+ if (this.mapProjection_ != frameState.viewState.projection) {
+ this.mapProjection_ = frameState.viewState.projection;
+ this.transform_ = null;
+ }
+ }
+ };
+
+ return MousePosition;
+}(_Control.default);
+
+var _default = MousePosition;
+exports.default = _default;
+},{"./Control.js":"../../../node_modules/ol/control/Control.js","../pointer/EventType.js":"../../../node_modules/ol/pointer/EventType.js","../Object.js":"../../../node_modules/ol/Object.js","../proj.js":"../../../node_modules/ol/proj.js","../events.js":"../../../node_modules/ol/events.js"}],"../../../node_modules/ol/OverlayPositioning.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+/**
+ * @module ol/OverlayPositioning
+ */
+
+/**
+ * Overlay position: `'bottom-left'`, `'bottom-center'`, `'bottom-right'`,
+ * `'center-left'`, `'center-center'`, `'center-right'`, `'top-left'`,
+ * `'top-center'`, `'top-right'`
+ * @enum {string}
+ */
+var _default = {
+ BOTTOM_LEFT: 'bottom-left',
+ BOTTOM_CENTER: 'bottom-center',
+ BOTTOM_RIGHT: 'bottom-right',
+ CENTER_LEFT: 'center-left',
+ CENTER_CENTER: 'center-center',
+ CENTER_RIGHT: 'center-right',
+ TOP_LEFT: 'top-left',
+ TOP_CENTER: 'top-center',
+ TOP_RIGHT: 'top-right'
+};
+exports.default = _default;
+},{}],"../../../node_modules/ol/Overlay.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Object = _interopRequireWildcard(require("./Object.js"));
+
+var _MapEventType = _interopRequireDefault(require("./MapEventType.js"));
+
+var _OverlayPositioning = _interopRequireDefault(require("./OverlayPositioning.js"));
+
+var _css = require("./css.js");
+
+var _extent = require("./extent.js");
+
+var _events = require("./events.js");
+
+var _dom = require("./dom.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/Overlay
+ */
+
+
+/**
+ * @typedef {Object} Options
+ * @property {number|string} [id] Set the overlay id. The overlay id can be used
+ * with the {@link module:ol/Map~Map#getOverlayById} method.
+ * @property {HTMLElement} [element] The overlay element.
+ * @property {Array<number>} [offset=[0, 0]] Offsets in pixels used when positioning
+ * the overlay. The first element in the
+ * array is the horizontal offset. A positive value shifts the overlay right.
+ * The second element in the array is the vertical offset. A positive value
+ * shifts the overlay down.
+ * @property {import("./coordinate.js").Coordinate} [position] The overlay position
+ * in map projection.
+ * @property {import("./OverlayPositioning.js").default} [positioning='top-left'] Defines how
+ * the overlay is actually positioned with respect to its `position` property.
+ * Possible values are `'bottom-left'`, `'bottom-center'`, `'bottom-right'`,
+ * `'center-left'`, `'center-center'`, `'center-right'`, `'top-left'`,
+ * `'top-center'`, and `'top-right'`.
+ * @property {boolean} [stopEvent=true] Whether event propagation to the map
+ * viewport should be stopped. If `true` the overlay is placed in the same
+ * container as that of the controls (CSS class name
+ * `ol-overlaycontainer-stopevent`); if `false` it is placed in the container
+ * with CSS class name specified by the `className` property.
+ * @property {boolean} [insertFirst=true] Whether the overlay is inserted first
+ * in the overlay container, or appended. If the overlay is placed in the same
+ * container as that of the controls (see the `stopEvent` option) you will
+ * probably set `insertFirst` to `true` so the overlay is displayed below the
+ * controls.
+ * @property {PanIntoViewOptions|boolean} [autoPan=false] Pan the map when calling
+ * `setPosition`, so that the overlay is entirely visible in the current viewport?
+ * If `true` (deprecated), then `autoPanAnimation` and `autoPanMargin` will be
+ * used to determine the panning parameters; if an object is supplied then other
+ * parameters are ignored.
+ * @property {PanOptions} [autoPanAnimation] The animation options used to pan
+ * the overlay into view. This animation is only used when `autoPan` is enabled.
+ * A `duration` and `easing` may be provided to customize the animation.
+ * Deprecated and ignored if `autoPan` is supplied as an object.
+ * @property {number} [autoPanMargin=20] The margin (in pixels) between the
+ * overlay and the borders of the map when autopanning. Deprecated and ignored
+ * if `autoPan` is supplied as an object.
+ * @property {PanIntoViewOptions} [autoPanOptions] The options to use for the
+ * autoPan. This is only used when `autoPan` is enabled and has preference over
+ * the individual `autoPanMargin` and `autoPanOptions`.
+ * @property {string} [className='ol-overlay-container ol-selectable'] CSS class
+ * name.
+ */
+
+/**
+ * @typedef {Object} PanOptions
+ * @property {number} [duration=1000] The duration of the animation in
+ * milliseconds.
+ * @property {function(number):number} [easing] The easing function to use. Can
+ * be one from {@link module:ol/easing} or a custom function.
+ * Default is {@link module:ol/easing~inAndOut}.
+ */
+
+/**
+ * @typedef {Object} PanIntoViewOptions
+ * @property {PanOptions} [animation={}] The animation parameters for the pan
+ * @property {number} [margin=20] The margin (in pixels) between the
+ * overlay and the borders of the map when panning into view.
+ */
+
+/**
+ * @enum {string}
+ * @protected
+ */
+var Property = {
+ ELEMENT: 'element',
+ MAP: 'map',
+ OFFSET: 'offset',
+ POSITION: 'position',
+ POSITIONING: 'positioning'
+};
+/**
+ * @classdesc
+ * An element to be displayed over the map and attached to a single map
+ * location. Like {@link module:ol/control/Control~Control}, Overlays are
+ * visible widgets. Unlike Controls, they are not in a fixed position on the
+ * screen, but are tied to a geographical coordinate, so panning the map will
+ * move an Overlay but not a Control.
+ *
+ * Example:
+ *
+ * import Overlay from 'ol/Overlay';
+ *
+ * var popup = new Overlay({
+ * element: document.getElementById('popup')
+ * });
+ * popup.setPosition(coordinate);
+ * map.addOverlay(popup);
+ *
+ * @api
+ */
+
+var Overlay =
+/** @class */
+function (_super) {
+ __extends(Overlay, _super);
+ /**
+ * @param {Options} options Overlay options.
+ */
+
+
+ function Overlay(options) {
+ var _this = _super.call(this) || this;
+ /**
+ * @protected
+ * @type {Options}
+ */
+
+
+ _this.options = options;
+ /**
+ * @protected
+ * @type {number|string|undefined}
+ */
+
+ _this.id = options.id;
+ /**
+ * @protected
+ * @type {boolean}
+ */
+
+ _this.insertFirst = options.insertFirst !== undefined ? options.insertFirst : true;
+ /**
+ * @protected
+ * @type {boolean}
+ */
+
+ _this.stopEvent = options.stopEvent !== undefined ? options.stopEvent : true;
+ /**
+ * @protected
+ * @type {HTMLElement}
+ */
+
+ _this.element = document.createElement('div');
+ _this.element.className = options.className !== undefined ? options.className : 'ol-overlay-container ' + _css.CLASS_SELECTABLE;
+ _this.element.style.position = 'absolute';
+ _this.element.style.pointerEvents = 'auto';
+ var autoPan = options.autoPan;
+
+ if (autoPan && 'object' !== typeof autoPan) {
+ autoPan = {
+ animation: options.autoPanAnimation,
+ margin: options.autoPanMargin
+ };
+ }
+ /**
+ * @protected
+ * @type {PanIntoViewOptions|false}
+ */
+
+
+ _this.autoPan =
+ /** @type {PanIntoViewOptions} */
+ autoPan || false;
+ /**
+ * @protected
+ * @type {{transform_: string,
+ * visible: boolean}}
+ */
+
+ _this.rendered = {
+ transform_: '',
+ visible: true
+ };
+ /**
+ * @protected
+ * @type {?import("./events.js").EventsKey}
+ */
+
+ _this.mapPostrenderListenerKey = null;
+
+ _this.addEventListener((0, _Object.getChangeEventType)(Property.ELEMENT), _this.handleElementChanged);
+
+ _this.addEventListener((0, _Object.getChangeEventType)(Property.MAP), _this.handleMapChanged);
+
+ _this.addEventListener((0, _Object.getChangeEventType)(Property.OFFSET), _this.handleOffsetChanged);
+
+ _this.addEventListener((0, _Object.getChangeEventType)(Property.POSITION), _this.handlePositionChanged);
+
+ _this.addEventListener((0, _Object.getChangeEventType)(Property.POSITIONING), _this.handlePositioningChanged);
+
+ if (options.element !== undefined) {
+ _this.setElement(options.element);
+ }
+
+ _this.setOffset(options.offset !== undefined ? options.offset : [0, 0]);
+
+ _this.setPositioning(options.positioning !== undefined ?
+ /** @type {import("./OverlayPositioning.js").default} */
+ options.positioning : _OverlayPositioning.default.TOP_LEFT);
+
+ if (options.position !== undefined) {
+ _this.setPosition(options.position);
+ }
+
+ return _this;
+ }
+ /**
+ * Get the DOM element of this overlay.
+ * @return {HTMLElement|undefined} The Element containing the overlay.
+ * @observable
+ * @api
+ */
+
+
+ Overlay.prototype.getElement = function () {
+ return (
+ /** @type {HTMLElement|undefined} */
+ this.get(Property.ELEMENT)
+ );
+ };
+ /**
+ * Get the overlay identifier which is set on constructor.
+ * @return {number|string|undefined} Id.
+ * @api
+ */
+
+
+ Overlay.prototype.getId = function () {
+ return this.id;
+ };
+ /**
+ * Get the map associated with this overlay.
+ * @return {import("./PluggableMap.js").default|undefined} The map that the
+ * overlay is part of.
+ * @observable
+ * @api
+ */
+
+
+ Overlay.prototype.getMap = function () {
+ return (
+ /** @type {import("./PluggableMap.js").default|undefined} */
+ this.get(Property.MAP)
+ );
+ };
+ /**
+ * Get the offset of this overlay.
+ * @return {Array<number>} The offset.
+ * @observable
+ * @api
+ */
+
+
+ Overlay.prototype.getOffset = function () {
+ return (
+ /** @type {Array<number>} */
+ this.get(Property.OFFSET)
+ );
+ };
+ /**
+ * Get the current position of this overlay.
+ * @return {import("./coordinate.js").Coordinate|undefined} The spatial point that the overlay is
+ * anchored at.
+ * @observable
+ * @api
+ */
+
+
+ Overlay.prototype.getPosition = function () {
+ return (
+ /** @type {import("./coordinate.js").Coordinate|undefined} */
+ this.get(Property.POSITION)
+ );
+ };
+ /**
+ * Get the current positioning of this overlay.
+ * @return {import("./OverlayPositioning.js").default} How the overlay is positioned
+ * relative to its point on the map.
+ * @observable
+ * @api
+ */
+
+
+ Overlay.prototype.getPositioning = function () {
+ return (
+ /** @type {import("./OverlayPositioning.js").default} */
+ this.get(Property.POSITIONING)
+ );
+ };
+ /**
+ * @protected
+ */
+
+
+ Overlay.prototype.handleElementChanged = function () {
+ (0, _dom.removeChildren)(this.element);
+ var element = this.getElement();
+
+ if (element) {
+ this.element.appendChild(element);
+ }
+ };
+ /**
+ * @protected
+ */
+
+
+ Overlay.prototype.handleMapChanged = function () {
+ if (this.mapPostrenderListenerKey) {
+ (0, _dom.removeNode)(this.element);
+ (0, _events.unlistenByKey)(this.mapPostrenderListenerKey);
+ this.mapPostrenderListenerKey = null;
+ }
+
+ var map = this.getMap();
+
+ if (map) {
+ this.mapPostrenderListenerKey = (0, _events.listen)(map, _MapEventType.default.POSTRENDER, this.render, this);
+ this.updatePixelPosition();
+ var container = this.stopEvent ? map.getOverlayContainerStopEvent() : map.getOverlayContainer();
+
+ if (this.insertFirst) {
+ container.insertBefore(this.element, container.childNodes[0] || null);
+ } else {
+ container.appendChild(this.element);
+ }
+
+ this.performAutoPan();
+ }
+ };
+ /**
+ * @protected
+ */
+
+
+ Overlay.prototype.render = function () {
+ this.updatePixelPosition();
+ };
+ /**
+ * @protected
+ */
+
+
+ Overlay.prototype.handleOffsetChanged = function () {
+ this.updatePixelPosition();
+ };
+ /**
+ * @protected
+ */
+
+
+ Overlay.prototype.handlePositionChanged = function () {
+ this.updatePixelPosition();
+ this.performAutoPan();
+ };
+ /**
+ * @protected
+ */
+
+
+ Overlay.prototype.handlePositioningChanged = function () {
+ this.updatePixelPosition();
+ };
+ /**
+ * Set the DOM element to be associated with this overlay.
+ * @param {HTMLElement|undefined} element The Element containing the overlay.
+ * @observable
+ * @api
+ */
+
+
+ Overlay.prototype.setElement = function (element) {
+ this.set(Property.ELEMENT, element);
+ };
+ /**
+ * Set the map to be associated with this overlay.
+ * @param {import("./PluggableMap.js").default|undefined} map The map that the
+ * overlay is part of.
+ * @observable
+ * @api
+ */
+
+
+ Overlay.prototype.setMap = function (map) {
+ this.set(Property.MAP, map);
+ };
+ /**
+ * Set the offset for this overlay.
+ * @param {Array<number>} offset Offset.
+ * @observable
+ * @api
+ */
+
+
+ Overlay.prototype.setOffset = function (offset) {
+ this.set(Property.OFFSET, offset);
+ };
+ /**
+ * Set the position for this overlay. If the position is `undefined` the
+ * overlay is hidden.
+ * @param {import("./coordinate.js").Coordinate|undefined} position The spatial point that the overlay
+ * is anchored at.
+ * @observable
+ * @api
+ */
+
+
+ Overlay.prototype.setPosition = function (position) {
+ this.set(Property.POSITION, position);
+ };
+ /**
+ * Pan the map so that the overlay is entirely visisble in the current viewport
+ * (if necessary) using the configured autoPan parameters
+ * @protected
+ */
+
+
+ Overlay.prototype.performAutoPan = function () {
+ if (this.autoPan) {
+ this.panIntoView(this.autoPan);
+ }
+ };
+ /**
+ * Pan the map so that the overlay is entirely visible in the current viewport
+ * (if necessary).
+ * @param {PanIntoViewOptions=} opt_panIntoViewOptions Options for the pan action
+ * @api
+ */
+
+
+ Overlay.prototype.panIntoView = function (opt_panIntoViewOptions) {
+ var map = this.getMap();
+
+ if (!map || !map.getTargetElement() || !this.get(Property.POSITION)) {
+ return;
+ }
+
+ var mapRect = this.getRect(map.getTargetElement(), map.getSize());
+ var element = this.getElement();
+ var overlayRect = this.getRect(element, [(0, _dom.outerWidth)(element), (0, _dom.outerHeight)(element)]);
+ var panIntoViewOptions = opt_panIntoViewOptions || {};
+ var myMargin = panIntoViewOptions.margin === undefined ? 20 : panIntoViewOptions.margin;
+
+ if (!(0, _extent.containsExtent)(mapRect, overlayRect)) {
+ // the overlay is not completely inside the viewport, so pan the map
+ var offsetLeft = overlayRect[0] - mapRect[0];
+ var offsetRight = mapRect[2] - overlayRect[2];
+ var offsetTop = overlayRect[1] - mapRect[1];
+ var offsetBottom = mapRect[3] - overlayRect[3];
+ var delta = [0, 0];
+
+ if (offsetLeft < 0) {
+ // move map to the left
+ delta[0] = offsetLeft - myMargin;
+ } else if (offsetRight < 0) {
+ // move map to the right
+ delta[0] = Math.abs(offsetRight) + myMargin;
+ }
+
+ if (offsetTop < 0) {
+ // move map up
+ delta[1] = offsetTop - myMargin;
+ } else if (offsetBottom < 0) {
+ // move map down
+ delta[1] = Math.abs(offsetBottom) + myMargin;
+ }
+
+ if (delta[0] !== 0 || delta[1] !== 0) {
+ var center =
+ /** @type {import("./coordinate.js").Coordinate} */
+ map.getView().getCenterInternal();
+ var centerPx = map.getPixelFromCoordinateInternal(center);
+ var newCenterPx = [centerPx[0] + delta[0], centerPx[1] + delta[1]];
+ var panOptions = panIntoViewOptions.animation || {};
+ map.getView().animateInternal({
+ center: map.getCoordinateFromPixelInternal(newCenterPx),
+ duration: panOptions.duration,
+ easing: panOptions.easing
+ });
+ }
+ }
+ };
+ /**
+ * Get the extent of an element relative to the document
+ * @param {HTMLElement} element The element.
+ * @param {import("./size.js").Size} size The size of the element.
+ * @return {import("./extent.js").Extent} The extent.
+ * @protected
+ */
+
+
+ Overlay.prototype.getRect = function (element, size) {
+ var box = element.getBoundingClientRect();
+ var offsetX = box.left + window.pageXOffset;
+ var offsetY = box.top + window.pageYOffset;
+ return [offsetX, offsetY, offsetX + size[0], offsetY + size[1]];
+ };
+ /**
+ * Set the positioning for this overlay.
+ * @param {import("./OverlayPositioning.js").default} positioning how the overlay is
+ * positioned relative to its point on the map.
+ * @observable
+ * @api
+ */
+
+
+ Overlay.prototype.setPositioning = function (positioning) {
+ this.set(Property.POSITIONING, positioning);
+ };
+ /**
+ * Modify the visibility of the element.
+ * @param {boolean} visible Element visibility.
+ * @protected
+ */
+
+
+ Overlay.prototype.setVisible = function (visible) {
+ if (this.rendered.visible !== visible) {
+ this.element.style.display = visible ? '' : 'none';
+ this.rendered.visible = visible;
+ }
+ };
+ /**
+ * Update pixel position.
+ * @protected
+ */
+
+
+ Overlay.prototype.updatePixelPosition = function () {
+ var map = this.getMap();
+ var position = this.getPosition();
+
+ if (!map || !map.isRendered() || !position) {
+ this.setVisible(false);
+ return;
+ }
+
+ var pixel = map.getPixelFromCoordinate(position);
+ var mapSize = map.getSize();
+ this.updateRenderedPosition(pixel, mapSize);
+ };
+ /**
+ * @param {import("./pixel.js").Pixel} pixel The pixel location.
+ * @param {import("./size.js").Size|undefined} mapSize The map size.
+ * @protected
+ */
+
+
+ Overlay.prototype.updateRenderedPosition = function (pixel, mapSize) {
+ var style = this.element.style;
+ var offset = this.getOffset();
+ var positioning = this.getPositioning();
+ this.setVisible(true);
+ var x = Math.round(pixel[0] + offset[0]) + 'px';
+ var y = Math.round(pixel[1] + offset[1]) + 'px';
+ var posX = '0%';
+ var posY = '0%';
+
+ if (positioning == _OverlayPositioning.default.BOTTOM_RIGHT || positioning == _OverlayPositioning.default.CENTER_RIGHT || positioning == _OverlayPositioning.default.TOP_RIGHT) {
+ posX = '-100%';
+ } else if (positioning == _OverlayPositioning.default.BOTTOM_CENTER || positioning == _OverlayPositioning.default.CENTER_CENTER || positioning == _OverlayPositioning.default.TOP_CENTER) {
+ posX = '-50%';
+ }
+
+ if (positioning == _OverlayPositioning.default.BOTTOM_LEFT || positioning == _OverlayPositioning.default.BOTTOM_CENTER || positioning == _OverlayPositioning.default.BOTTOM_RIGHT) {
+ posY = '-100%';
+ } else if (positioning == _OverlayPositioning.default.CENTER_LEFT || positioning == _OverlayPositioning.default.CENTER_CENTER || positioning == _OverlayPositioning.default.CENTER_RIGHT) {
+ posY = '-50%';
+ }
+
+ var transform = "translate(" + posX + ", " + posY + ") translate(" + x + ", " + y + ")";
+
+ if (this.rendered.transform_ != transform) {
+ this.rendered.transform_ = transform;
+ style.transform = transform; // @ts-ignore IE9
+
+ style.msTransform = transform;
+ }
+ };
+ /**
+ * returns the options this Overlay has been created with
+ * @return {Options} overlay options
+ */
+
+
+ Overlay.prototype.getOptions = function () {
+ return this.options;
+ };
+
+ return Overlay;
+}(_Object.default);
+
+var _default = Overlay;
+exports.default = _default;
+},{"./Object.js":"../../../node_modules/ol/Object.js","./MapEventType.js":"../../../node_modules/ol/MapEventType.js","./OverlayPositioning.js":"../../../node_modules/ol/OverlayPositioning.js","./css.js":"../../../node_modules/ol/css.js","./extent.js":"../../../node_modules/ol/extent.js","./events.js":"../../../node_modules/ol/events.js","./dom.js":"../../../node_modules/ol/dom.js"}],"../../../node_modules/ol/control/OverviewMap.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Composite = _interopRequireDefault(require("../renderer/Composite.js"));
+
+var _Control = _interopRequireDefault(require("./Control.js"));
+
+var _EventType = _interopRequireDefault(require("../events/EventType.js"));
+
+var _MapEventType = _interopRequireDefault(require("../MapEventType.js"));
+
+var _MapProperty = _interopRequireDefault(require("../MapProperty.js"));
+
+var _ObjectEventType = _interopRequireDefault(require("../ObjectEventType.js"));
+
+var _Overlay = _interopRequireDefault(require("../Overlay.js"));
+
+var _OverlayPositioning = _interopRequireDefault(require("../OverlayPositioning.js"));
+
+var _PluggableMap = _interopRequireDefault(require("../PluggableMap.js"));
+
+var _View = _interopRequireDefault(require("../View.js"));
+
+var _ViewProperty = _interopRequireDefault(require("../ViewProperty.js"));
+
+var _css = require("../css.js");
+
+var _extent = require("../extent.js");
+
+var _Object = require("../Object.js");
+
+var _events = require("../events.js");
+
+var _Polygon = require("../geom/Polygon.js");
+
+var _dom = require("../dom.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/control/OverviewMap
+ */
+
+
+/**
+ * Maximum width and/or height extent ratio that determines when the overview
+ * map should be zoomed out.
+ * @type {number}
+ */
+var MAX_RATIO = 0.75;
+/**
+ * Minimum width and/or height extent ratio that determines when the overview
+ * map should be zoomed in.
+ * @type {number}
+ */
+
+var MIN_RATIO = 0.1;
+
+var ControlledMap =
+/** @class */
+function (_super) {
+ __extends(ControlledMap, _super);
+
+ function ControlledMap() {
+ return _super !== null && _super.apply(this, arguments) || this;
+ }
+
+ ControlledMap.prototype.createRenderer = function () {
+ return new _Composite.default(this);
+ };
+
+ return ControlledMap;
+}(_PluggableMap.default);
+/**
+ * @typedef {Object} Options
+ * @property {string} [className='ol-overviewmap'] CSS class name.
+ * @property {boolean} [collapsed=true] Whether the control should start collapsed or not (expanded).
+ * @property {string|HTMLElement} [collapseLabel='«'] Text label to use for the
+ * expanded overviewmap button. Instead of text, also an element (e.g. a `span` element) can be used.
+ * @property {boolean} [collapsible=true] Whether the control can be collapsed or not.
+ * @property {string|HTMLElement} [label='»'] Text label to use for the collapsed
+ * overviewmap button. Instead of text, also an element (e.g. a `span` element) can be used.
+ * @property {Array<import("../layer/Layer.js").default>|import("../Collection.js").default<import("../layer/Layer.js").default>} [layers]
+ * Layers for the overview map.
+ * @property {function(import("../MapEvent.js").default):void} [render] Function called when the control
+ * should be re-rendered. This is called in a `requestAnimationFrame` callback.
+ * @property {boolean} [rotateWithView=false] Whether the control view should rotate with the main map view.
+ * @property {HTMLElement|string} [target] Specify a target if you want the control
+ * to be rendered outside of the map's viewport.
+ * @property {string} [tipLabel='Overview map'] Text label to use for the button tip.
+ * @property {View} [view] Custom view for the overview map (should use same projection as main map). If not provided,
+ * a default view with the same projection as the main map will be used.
+ */
+
+/**
+ * Create a new control with a map acting as an overview map for another
+ * defined map.
+ *
+ * @api
+ */
+
+
+var OverviewMap =
+/** @class */
+function (_super) {
+ __extends(OverviewMap, _super);
+ /**
+ * @param {Options=} opt_options OverviewMap options.
+ */
+
+
+ function OverviewMap(opt_options) {
+ var _this = this;
+
+ var options = opt_options ? opt_options : {};
+ _this = _super.call(this, {
+ element: document.createElement('div'),
+ render: options.render,
+ target: options.target
+ }) || this;
+ /**
+ * @private
+ */
+
+ _this.boundHandleRotationChanged_ = _this.handleRotationChanged_.bind(_this);
+ /**
+ * @type {boolean}
+ * @private
+ */
+
+ _this.collapsed_ = options.collapsed !== undefined ? options.collapsed : true;
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ _this.collapsible_ = options.collapsible !== undefined ? options.collapsible : true;
+
+ if (!_this.collapsible_) {
+ _this.collapsed_ = false;
+ }
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+
+ _this.rotateWithView_ = options.rotateWithView !== undefined ? options.rotateWithView : false;
+ /**
+ * @private
+ * @type {import("../extent.js").Extent|undefined}
+ */
+
+ _this.viewExtent_ = undefined;
+ var className = options.className !== undefined ? options.className : 'ol-overviewmap';
+ var tipLabel = options.tipLabel !== undefined ? options.tipLabel : 'Overview map';
+ var collapseLabel = options.collapseLabel !== undefined ? options.collapseLabel : '\u00AB';
+
+ if (typeof collapseLabel === 'string') {
+ /**
+ * @private
+ * @type {HTMLElement}
+ */
+ _this.collapseLabel_ = document.createElement('span');
+ _this.collapseLabel_.textContent = collapseLabel;
+ } else {
+ _this.collapseLabel_ = collapseLabel;
+ }
+
+ var label = options.label !== undefined ? options.label : '\u00BB';
+
+ if (typeof label === 'string') {
+ /**
+ * @private
+ * @type {HTMLElement}
+ */
+ _this.label_ = document.createElement('span');
+ _this.label_.textContent = label;
+ } else {
+ _this.label_ = label;
+ }
+
+ var activeLabel = _this.collapsible_ && !_this.collapsed_ ? _this.collapseLabel_ : _this.label_;
+ var button = document.createElement('button');
+ button.setAttribute('type', 'button');
+ button.title = tipLabel;
+ button.appendChild(activeLabel);
+ button.addEventListener(_EventType.default.CLICK, _this.handleClick_.bind(_this), false);
+ /**
+ * @type {HTMLElement}
+ * @private
+ */
+
+ _this.ovmapDiv_ = document.createElement('div');
+ _this.ovmapDiv_.className = 'ol-overviewmap-map';
+ /**
+ * Explicitly given view to be used instead of a view derived from the main map.
+ * @type {View}
+ * @private
+ */
+
+ _this.view_ = options.view;
+ /**
+ * @type {ControlledMap}
+ * @private
+ */
+
+ _this.ovmap_ = new ControlledMap({
+ view: options.view
+ });
+ var ovmap = _this.ovmap_;
+
+ if (options.layers) {
+ options.layers.forEach(function (layer) {
+ ovmap.addLayer(layer);
+ });
+ }
+
+ var box = document.createElement('div');
+ box.className = 'ol-overviewmap-box';
+ box.style.boxSizing = 'border-box';
+ /**
+ * @type {import("../Overlay.js").default}
+ * @private
+ */
+
+ _this.boxOverlay_ = new _Overlay.default({
+ position: [0, 0],
+ positioning: _OverlayPositioning.default.CENTER_CENTER,
+ element: box
+ });
+
+ _this.ovmap_.addOverlay(_this.boxOverlay_);
+
+ var cssClasses = className + ' ' + _css.CLASS_UNSELECTABLE + ' ' + _css.CLASS_CONTROL + (_this.collapsed_ && _this.collapsible_ ? ' ' + _css.CLASS_COLLAPSED : '') + (_this.collapsible_ ? '' : ' ol-uncollapsible');
+ var element = _this.element;
+ element.className = cssClasses;
+ element.appendChild(_this.ovmapDiv_);
+ element.appendChild(button);
+ /* Interactive map */
+
+ var scope = _this;
+ var overlay = _this.boxOverlay_;
+
+ var overlayBox = _this.boxOverlay_.getElement();
+ /* Functions definition */
+
+
+ var computeDesiredMousePosition = function (mousePosition) {
+ return {
+ clientX: mousePosition.clientX,
+ clientY: mousePosition.clientY
+ };
+ };
+
+ var move = function (event) {
+ var position =
+ /** @type {?} */
+ computeDesiredMousePosition(event);
+ var coordinates = ovmap.getEventCoordinateInternal(
+ /** @type {MouseEvent} */
+ position);
+ overlay.setPosition(coordinates);
+ };
+
+ var endMoving = function (event) {
+ var coordinates = ovmap.getEventCoordinateInternal(event);
+ scope.getMap().getView().setCenterInternal(coordinates);
+ window.removeEventListener('mousemove', move);
+ window.removeEventListener('mouseup', endMoving);
+ };
+ /* Binding */
+
+
+ overlayBox.addEventListener('mousedown', function () {
+ window.addEventListener('mousemove', move);
+ window.addEventListener('mouseup', endMoving);
+ });
+ return _this;
+ }
+ /**
+ * Remove the control from its current map and attach it to the new map.
+ * Subclasses may set up event handlers to get notified about changes to
+ * the map here.
+ * @param {import("../PluggableMap.js").default} map Map.
+ * @api
+ */
+
+
+ OverviewMap.prototype.setMap = function (map) {
+ var oldMap = this.getMap();
+
+ if (map === oldMap) {
+ return;
+ }
+
+ if (oldMap) {
+ var oldView = oldMap.getView();
+
+ if (oldView) {
+ this.unbindView_(oldView);
+ }
+
+ this.ovmap_.setTarget(null);
+ }
+
+ _super.prototype.setMap.call(this, map);
+
+ if (map) {
+ this.ovmap_.setTarget(this.ovmapDiv_);
+ this.listenerKeys.push((0, _events.listen)(map, _ObjectEventType.default.PROPERTYCHANGE, this.handleMapPropertyChange_, this));
+ var view = map.getView();
+
+ if (view) {
+ this.bindView_(view);
+
+ if (view.isDef()) {
+ this.ovmap_.updateSize();
+ this.resetExtent_();
+ }
+ }
+ }
+ };
+ /**
+ * Handle map property changes. This only deals with changes to the map's view.
+ * @param {import("../Object.js").ObjectEvent} event The propertychange event.
+ * @private
+ */
+
+
+ OverviewMap.prototype.handleMapPropertyChange_ = function (event) {
+ if (event.key === _MapProperty.default.VIEW) {
+ var oldView =
+ /** @type {import("../View.js").default} */
+ event.oldValue;
+
+ if (oldView) {
+ this.unbindView_(oldView);
+ }
+
+ var newView = this.getMap().getView();
+ this.bindView_(newView);
+ }
+ };
+ /**
+ * Register listeners for view property changes.
+ * @param {import("../View.js").default} view The view.
+ * @private
+ */
+
+
+ OverviewMap.prototype.bindView_ = function (view) {
+ if (!this.view_) {
+ // Unless an explicit view definition was given, derive default from whatever main map uses.
+ var newView = new _View.default({
+ projection: view.getProjection()
+ });
+ this.ovmap_.setView(newView);
+ }
+
+ view.addEventListener((0, _Object.getChangeEventType)(_ViewProperty.default.ROTATION), this.boundHandleRotationChanged_); // Sync once with the new view
+
+ this.handleRotationChanged_();
+ };
+ /**
+ * Unregister listeners for view property changes.
+ * @param {import("../View.js").default} view The view.
+ * @private
+ */
+
+
+ OverviewMap.prototype.unbindView_ = function (view) {
+ view.removeEventListener((0, _Object.getChangeEventType)(_ViewProperty.default.ROTATION), this.boundHandleRotationChanged_);
+ };
+ /**
+ * Handle rotation changes to the main map.
+ * @private
+ */
+
+
+ OverviewMap.prototype.handleRotationChanged_ = function () {
+ if (this.rotateWithView_) {
+ this.ovmap_.getView().setRotation(this.getMap().getView().getRotation());
+ }
+ };
+ /**
+ * Reset the overview map extent if the box size (width or
+ * height) is less than the size of the overview map size times minRatio
+ * or is greater than the size of the overview size times maxRatio.
+ *
+ * If the map extent was not reset, the box size can fits in the defined
+ * ratio sizes. This method then checks if is contained inside the overview
+ * map current extent. If not, recenter the overview map to the current
+ * main map center location.
+ * @private
+ */
+
+
+ OverviewMap.prototype.validateExtent_ = function () {
+ var map = this.getMap();
+ var ovmap = this.ovmap_;
+
+ if (!map.isRendered() || !ovmap.isRendered()) {
+ return;
+ }
+
+ var mapSize =
+ /** @type {import("../size.js").Size} */
+ map.getSize();
+ var view = map.getView();
+ var extent = view.calculateExtentInternal(mapSize);
+
+ if (this.viewExtent_ && (0, _extent.equals)(extent, this.viewExtent_)) {
+ // repeats of the same extent may indicate constraint conflicts leading to an endless cycle
+ return;
+ }
+
+ this.viewExtent_ = extent;
+ var ovmapSize =
+ /** @type {import("../size.js").Size} */
+ ovmap.getSize();
+ var ovview = ovmap.getView();
+ var ovextent = ovview.calculateExtentInternal(ovmapSize);
+ var topLeftPixel = ovmap.getPixelFromCoordinateInternal((0, _extent.getTopLeft)(extent));
+ var bottomRightPixel = ovmap.getPixelFromCoordinateInternal((0, _extent.getBottomRight)(extent));
+ var boxWidth = Math.abs(topLeftPixel[0] - bottomRightPixel[0]);
+ var boxHeight = Math.abs(topLeftPixel[1] - bottomRightPixel[1]);
+ var ovmapWidth = ovmapSize[0];
+ var ovmapHeight = ovmapSize[1];
+
+ if (boxWidth < ovmapWidth * MIN_RATIO || boxHeight < ovmapHeight * MIN_RATIO || boxWidth > ovmapWidth * MAX_RATIO || boxHeight > ovmapHeight * MAX_RATIO) {
+ this.resetExtent_();
+ } else if (!(0, _extent.containsExtent)(ovextent, extent)) {
+ this.recenter_();
+ }
+ };
+ /**
+ * Reset the overview map extent to half calculated min and max ratio times
+ * the extent of the main map.
+ * @private
+ */
+
+
+ OverviewMap.prototype.resetExtent_ = function () {
+ if (MAX_RATIO === 0 || MIN_RATIO === 0) {
+ return;
+ }
+
+ var map = this.getMap();
+ var ovmap = this.ovmap_;
+ var mapSize =
+ /** @type {import("../size.js").Size} */
+ map.getSize();
+ var view = map.getView();
+ var extent = view.calculateExtentInternal(mapSize);
+ var ovview = ovmap.getView(); // get how many times the current map overview could hold different
+ // box sizes using the min and max ratio, pick the step in the middle used
+ // to calculate the extent from the main map to set it to the overview map,
+
+ var steps = Math.log(MAX_RATIO / MIN_RATIO) / Math.LN2;
+ var ratio = 1 / (Math.pow(2, steps / 2) * MIN_RATIO);
+ (0, _extent.scaleFromCenter)(extent, ratio);
+ ovview.fitInternal((0, _Polygon.fromExtent)(extent));
+ };
+ /**
+ * Set the center of the overview map to the map center without changing its
+ * resolution.
+ * @private
+ */
+
+
+ OverviewMap.prototype.recenter_ = function () {
+ var map = this.getMap();
+ var ovmap = this.ovmap_;
+ var view = map.getView();
+ var ovview = ovmap.getView();
+ ovview.setCenterInternal(view.getCenterInternal());
+ };
+ /**
+ * Update the box using the main map extent
+ * @private
+ */
+
+
+ OverviewMap.prototype.updateBox_ = function () {
+ var map = this.getMap();
+ var ovmap = this.ovmap_;
+
+ if (!map.isRendered() || !ovmap.isRendered()) {
+ return;
+ }
+
+ var mapSize =
+ /** @type {import("../size.js").Size} */
+ map.getSize();
+ var view = map.getView();
+ var ovview = ovmap.getView();
+ var rotation = this.rotateWithView_ ? 0 : -view.getRotation();
+ var overlay = this.boxOverlay_;
+ var box = this.boxOverlay_.getElement();
+ var center = view.getCenterInternal();
+ var resolution = view.getResolution();
+ var ovresolution = ovview.getResolution();
+ var width = mapSize[0] * resolution / ovresolution;
+ var height = mapSize[1] * resolution / ovresolution; // set position using center coordinates
+
+ overlay.setPosition(center); // set box size calculated from map extent size and overview map resolution
+
+ if (box) {
+ box.style.width = width + 'px';
+ box.style.height = height + 'px';
+ var transform = 'rotate(' + rotation + 'rad)';
+ box.style.transform = transform;
+ }
+ };
+ /**
+ * @param {MouseEvent} event The event to handle
+ * @private
+ */
+
+
+ OverviewMap.prototype.handleClick_ = function (event) {
+ event.preventDefault();
+ this.handleToggle_();
+ };
+ /**
+ * @private
+ */
+
+
+ OverviewMap.prototype.handleToggle_ = function () {
+ this.element.classList.toggle(_css.CLASS_COLLAPSED);
+
+ if (this.collapsed_) {
+ (0, _dom.replaceNode)(this.collapseLabel_, this.label_);
+ } else {
+ (0, _dom.replaceNode)(this.label_, this.collapseLabel_);
+ }
+
+ this.collapsed_ = !this.collapsed_; // manage overview map if it had not been rendered before and control
+ // is expanded
+
+ var ovmap = this.ovmap_;
+
+ if (!this.collapsed_) {
+ if (ovmap.isRendered()) {
+ this.viewExtent_ = undefined;
+ ovmap.render();
+ return;
+ }
+
+ ovmap.updateSize();
+ this.resetExtent_();
+ (0, _events.listenOnce)(ovmap, _MapEventType.default.POSTRENDER, function (event) {
+ this.updateBox_();
+ }, this);
+ }
+ };
+ /**
+ * Return `true` if the overview map is collapsible, `false` otherwise.
+ * @return {boolean} True if the widget is collapsible.
+ * @api
+ */
+
+
+ OverviewMap.prototype.getCollapsible = function () {
+ return this.collapsible_;
+ };
+ /**
+ * Set whether the overview map should be collapsible.
+ * @param {boolean} collapsible True if the widget is collapsible.
+ * @api
+ */
+
+
+ OverviewMap.prototype.setCollapsible = function (collapsible) {
+ if (this.collapsible_ === collapsible) {
+ return;
+ }
+
+ this.collapsible_ = collapsible;
+ this.element.classList.toggle('ol-uncollapsible');
+
+ if (!collapsible && this.collapsed_) {
+ this.handleToggle_();
+ }
+ };
+ /**
+ * Collapse or expand the overview map according to the passed parameter. Will
+ * not do anything if the overview map isn't collapsible or if the current
+ * collapsed state is already the one requested.
+ * @param {boolean} collapsed True if the widget is collapsed.
+ * @api
+ */
+
+
+ OverviewMap.prototype.setCollapsed = function (collapsed) {
+ if (!this.collapsible_ || this.collapsed_ === collapsed) {
+ return;
+ }
+
+ this.handleToggle_();
+ };
+ /**
+ * Determine if the overview map is collapsed.
+ * @return {boolean} The overview map is collapsed.
+ * @api
+ */
+
+
+ OverviewMap.prototype.getCollapsed = function () {
+ return this.collapsed_;
+ };
+ /**
+ * Return `true` if the overview map view can rotate, `false` otherwise.
+ * @return {boolean} True if the control view can rotate.
+ * @api
+ */
+
+
+ OverviewMap.prototype.getRotateWithView = function () {
+ return this.rotateWithView_;
+ };
+ /**
+ * Set whether the overview map view should rotate with the main map view.
+ * @param {boolean} rotateWithView True if the control view should rotate.
+ * @api
+ */
+
+
+ OverviewMap.prototype.setRotateWithView = function (rotateWithView) {
+ if (this.rotateWithView_ === rotateWithView) {
+ return;
+ }
+
+ this.rotateWithView_ = rotateWithView;
+
+ if (this.getMap().getView().getRotation() !== 0) {
+ if (this.rotateWithView_) {
+ this.handleRotationChanged_();
+ } else {
+ this.ovmap_.getView().setRotation(0);
+ }
+
+ this.viewExtent_ = undefined;
+ this.validateExtent_();
+ this.updateBox_();
+ }
+ };
+ /**
+ * Return the overview map.
+ * @return {import("../PluggableMap.js").default} Overview map.
+ * @api
+ */
+
+
+ OverviewMap.prototype.getOverviewMap = function () {
+ return this.ovmap_;
+ };
+ /**
+ * Update the overview map element.
+ * @param {import("../MapEvent.js").default} mapEvent Map event.
+ * @override
+ */
+
+
+ OverviewMap.prototype.render = function (mapEvent) {
+ this.validateExtent_();
+ this.updateBox_();
+ };
+
+ return OverviewMap;
+}(_Control.default);
+
+var _default = OverviewMap;
+exports.default = _default;
+},{"../renderer/Composite.js":"../../../node_modules/ol/renderer/Composite.js","./Control.js":"../../../node_modules/ol/control/Control.js","../events/EventType.js":"../../../node_modules/ol/events/EventType.js","../MapEventType.js":"../../../node_modules/ol/MapEventType.js","../MapProperty.js":"../../../node_modules/ol/MapProperty.js","../ObjectEventType.js":"../../../node_modules/ol/ObjectEventType.js","../Overlay.js":"../../../node_modules/ol/Overlay.js","../OverlayPositioning.js":"../../../node_modules/ol/OverlayPositioning.js","../PluggableMap.js":"../../../node_modules/ol/PluggableMap.js","../View.js":"../../../node_modules/ol/View.js","../ViewProperty.js":"../../../node_modules/ol/ViewProperty.js","../css.js":"../../../node_modules/ol/css.js","../extent.js":"../../../node_modules/ol/extent.js","../Object.js":"../../../node_modules/ol/Object.js","../events.js":"../../../node_modules/ol/events.js","../geom/Polygon.js":"../../../node_modules/ol/geom/Polygon.js","../dom.js":"../../../node_modules/ol/dom.js"}],"../../../node_modules/ol/control/ScaleLine.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = exports.Units = void 0;
+
+var _Control = _interopRequireDefault(require("./Control.js"));
+
+var _Units = _interopRequireDefault(require("../proj/Units.js"));
+
+var _css = require("../css.js");
+
+var _proj = require("../proj.js");
+
+var _asserts = require("../asserts.js");
+
+var _Object = require("../Object.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/control/ScaleLine
+ */
+
+
+/**
+ * @type {string}
+ */
+var UNITS_PROP = 'units';
+/**
+ * Units for the scale line. Supported values are `'degrees'`, `'imperial'`,
+ * `'nautical'`, `'metric'`, `'us'`.
+ * @enum {string}
+ */
+
+var Units = {
+ DEGREES: 'degrees',
+ IMPERIAL: 'imperial',
+ NAUTICAL: 'nautical',
+ METRIC: 'metric',
+ US: 'us'
+};
+/**
+ * @const
+ * @type {Array<number>}
+ */
+
+exports.Units = Units;
+var LEADING_DIGITS = [1, 2, 5];
+/**
+ * @const
+ * @type {number}
+ */
+
+var DEFAULT_DPI = 25.4 / 0.28;
+/**
+ * @typedef {Object} Options
+ * @property {string} [className='ol-scale-line'] CSS Class name.
+ * @property {number} [minWidth=64] Minimum width in pixels at the OGC default dpi. The width will be
+ * adjusted to match the dpi used.
+ * @property {function(import("../MapEvent.js").default):void} [render] Function called when the control
+ * should be re-rendered. This is called in a `requestAnimationFrame` callback.
+ * @property {HTMLElement|string} [target] Specify a target if you want the control
+ * to be rendered outside of the map's viewport.
+ * @property {import("./ScaleLine.js").Units|string} [units='metric'] Units.
+ * @property {boolean} [bar=false] Render scalebars instead of a line.
+ * @property {number} [steps=4] Number of steps the scalebar should use. Use even numbers
+ * for best results. Only applies when `bar` is `true`.
+ * @property {boolean} [text=false] Render the text scale above of the scalebar. Only applies
+ * when `bar` is `true`.
+ * @property {number|undefined} [dpi=undefined] dpi of output device such as printer. Only applies
+ * when `bar` is `true`. If undefined the OGC default screen pixel size of 0.28mm will be assumed.
+ */
+
+/**
+ * @classdesc
+ * A control displaying rough y-axis distances, calculated for the center of the
+ * viewport. For conformal projections (e.g. EPSG:3857, the default view
+ * projection in OpenLayers), the scale is valid for all directions.
+ * No scale line will be shown when the y-axis distance of a pixel at the
+ * viewport center cannot be calculated in the view projection.
+ * By default the scale line will show in the bottom left portion of the map,
+ * but this can be changed by using the css selector `.ol-scale-line`.
+ * When specifying `bar` as `true`, a scalebar will be rendered instead
+ * of a scaleline.
+ *
+ * @api
+ */
+
+var ScaleLine =
+/** @class */
+function (_super) {
+ __extends(ScaleLine, _super);
+ /**
+ * @param {Options=} opt_options Scale line options.
+ */
+
+
+ function ScaleLine(opt_options) {
+ var _this = this;
+
+ var options = opt_options ? opt_options : {};
+ var className = options.className !== undefined ? options.className : options.bar ? 'ol-scale-bar' : 'ol-scale-line';
+ _this = _super.call(this, {
+ element: document.createElement('div'),
+ render: options.render,
+ target: options.target
+ }) || this;
+ /**
+ * @private
+ * @type {HTMLElement}
+ */
+
+ _this.innerElement_ = document.createElement('div');
+ _this.innerElement_.className = className + '-inner';
+ _this.element.className = className + ' ' + _css.CLASS_UNSELECTABLE;
+
+ _this.element.appendChild(_this.innerElement_);
+ /**
+ * @private
+ * @type {?import("../View.js").State}
+ */
+
+
+ _this.viewState_ = null;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.minWidth_ = options.minWidth !== undefined ? options.minWidth : 64;
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ _this.renderedVisible_ = false;
+ /**
+ * @private
+ * @type {number|undefined}
+ */
+
+ _this.renderedWidth_ = undefined;
+ /**
+ * @private
+ * @type {string}
+ */
+
+ _this.renderedHTML_ = '';
+
+ _this.addEventListener((0, _Object.getChangeEventType)(UNITS_PROP), _this.handleUnitsChanged_);
+
+ _this.setUnits(options.units || Units.METRIC);
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+
+ _this.scaleBar_ = options.bar || false;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.scaleBarSteps_ = options.steps || 4;
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ _this.scaleBarText_ = options.text || false;
+ /**
+ * @private
+ * @type {number|undefined}
+ */
+
+ _this.dpi_ = options.dpi || undefined;
+ return _this;
+ }
+ /**
+ * Return the units to use in the scale line.
+ * @return {import("./ScaleLine.js").Units} The units
+ * to use in the scale line.
+ * @observable
+ * @api
+ */
+
+
+ ScaleLine.prototype.getUnits = function () {
+ return this.get(UNITS_PROP);
+ };
+ /**
+ * @private
+ */
+
+
+ ScaleLine.prototype.handleUnitsChanged_ = function () {
+ this.updateElement_();
+ };
+ /**
+ * Set the units to use in the scale line.
+ * @param {import("./ScaleLine.js").Units} units The units to use in the scale line.
+ * @observable
+ * @api
+ */
+
+
+ ScaleLine.prototype.setUnits = function (units) {
+ this.set(UNITS_PROP, units);
+ };
+ /**
+ * Specify the dpi of output device such as printer.
+ * @param {number|undefined} dpi The dpi of output device.
+ * @api
+ */
+
+
+ ScaleLine.prototype.setDpi = function (dpi) {
+ this.dpi_ = dpi;
+ };
+ /**
+ * @private
+ */
+
+
+ ScaleLine.prototype.updateElement_ = function () {
+ var viewState = this.viewState_;
+
+ if (!viewState) {
+ if (this.renderedVisible_) {
+ this.element.style.display = 'none';
+ this.renderedVisible_ = false;
+ }
+
+ return;
+ }
+
+ var center = viewState.center;
+ var projection = viewState.projection;
+ var units = this.getUnits();
+ var pointResolutionUnits = units == Units.DEGREES ? _Units.default.DEGREES : _Units.default.METERS;
+ var pointResolution = (0, _proj.getPointResolution)(projection, viewState.resolution, center, pointResolutionUnits);
+ var minWidth = this.minWidth_ * (this.dpi_ || DEFAULT_DPI) / DEFAULT_DPI;
+ var nominalCount = minWidth * pointResolution;
+ var suffix = '';
+
+ if (units == Units.DEGREES) {
+ var metersPerDegree = _proj.METERS_PER_UNIT[_Units.default.DEGREES];
+ nominalCount *= metersPerDegree;
+
+ if (nominalCount < metersPerDegree / 60) {
+ suffix = '\u2033'; // seconds
+
+ pointResolution *= 3600;
+ } else if (nominalCount < metersPerDegree) {
+ suffix = '\u2032'; // minutes
+
+ pointResolution *= 60;
+ } else {
+ suffix = '\u00b0'; // degrees
+ }
+ } else if (units == Units.IMPERIAL) {
+ if (nominalCount < 0.9144) {
+ suffix = 'in';
+ pointResolution /= 0.0254;
+ } else if (nominalCount < 1609.344) {
+ suffix = 'ft';
+ pointResolution /= 0.3048;
+ } else {
+ suffix = 'mi';
+ pointResolution /= 1609.344;
+ }
+ } else if (units == Units.NAUTICAL) {
+ pointResolution /= 1852;
+ suffix = 'nm';
+ } else if (units == Units.METRIC) {
+ if (nominalCount < 0.001) {
+ suffix = 'μm';
+ pointResolution *= 1000000;
+ } else if (nominalCount < 1) {
+ suffix = 'mm';
+ pointResolution *= 1000;
+ } else if (nominalCount < 1000) {
+ suffix = 'm';
+ } else {
+ suffix = 'km';
+ pointResolution /= 1000;
+ }
+ } else if (units == Units.US) {
+ if (nominalCount < 0.9144) {
+ suffix = 'in';
+ pointResolution *= 39.37;
+ } else if (nominalCount < 1609.344) {
+ suffix = 'ft';
+ pointResolution /= 0.30480061;
+ } else {
+ suffix = 'mi';
+ pointResolution /= 1609.3472;
+ }
+ } else {
+ (0, _asserts.assert)(false, 33); // Invalid units
+ }
+
+ var i = 3 * Math.floor(Math.log(minWidth * pointResolution) / Math.log(10));
+ var count, width, decimalCount;
+
+ while (true) {
+ decimalCount = Math.floor(i / 3);
+ var decimal = Math.pow(10, decimalCount);
+ count = LEADING_DIGITS[(i % 3 + 3) % 3] * decimal;
+ width = Math.round(count / pointResolution);
+
+ if (isNaN(width)) {
+ this.element.style.display = 'none';
+ this.renderedVisible_ = false;
+ return;
+ } else if (width >= minWidth) {
+ break;
+ }
+
+ ++i;
+ }
+
+ var html;
+
+ if (this.scaleBar_) {
+ html = this.createScaleBar(width, count, suffix);
+ } else {
+ html = count.toFixed(decimalCount < 0 ? -decimalCount : 0) + ' ' + suffix;
+ }
+
+ if (this.renderedHTML_ != html) {
+ this.innerElement_.innerHTML = html;
+ this.renderedHTML_ = html;
+ }
+
+ if (this.renderedWidth_ != width) {
+ this.innerElement_.style.width = width + 'px';
+ this.renderedWidth_ = width;
+ }
+
+ if (!this.renderedVisible_) {
+ this.element.style.display = '';
+ this.renderedVisible_ = true;
+ }
+ };
+ /**
+ * @private
+ * @param {number} width The current width of the scalebar.
+ * @param {number} scale The current scale.
+ * @param {string} suffix The suffix to append to the scale text.
+ * @returns {string} The stringified HTML of the scalebar.
+ */
+
+
+ ScaleLine.prototype.createScaleBar = function (width, scale, suffix) {
+ var mapScale = '1 : ' + Math.round(this.getScaleForResolution()).toLocaleString();
+ var scaleSteps = [];
+ var stepWidth = width / this.scaleBarSteps_;
+ var backgroundColor = '#ffffff';
+
+ for (var i = 0; i < this.scaleBarSteps_; i++) {
+ if (i === 0) {
+ // create the first marker at position 0
+ scaleSteps.push(this.createMarker('absolute', i));
+ }
+
+ scaleSteps.push('<div>' + '<div ' + 'class="ol-scale-singlebar" ' + 'style=' + '"width: ' + stepWidth + 'px;' + 'background-color: ' + backgroundColor + ';"' + '>' + '</div>' + this.createMarker('relative', i) + (
+ /*render text every second step, except when only 2 steps */
+ i % 2 === 0 || this.scaleBarSteps_ === 2 ? this.createStepText(i, width, false, scale, suffix) : '') + '</div>');
+
+ if (i === this.scaleBarSteps_ - 1) {
+ {
+ /*render text at the end */
+ }
+ scaleSteps.push(this.createStepText(i + 1, width, true, scale, suffix));
+ } // switch colors of steps between black and white
+
+
+ if (backgroundColor === '#ffffff') {
+ backgroundColor = '#000000';
+ } else {
+ backgroundColor = '#ffffff';
+ }
+ }
+
+ var scaleBarText;
+
+ if (this.scaleBarText_) {
+ scaleBarText = '<div ' + 'class="ol-scale-text" ' + 'style="width: ' + width + 'px;">' + mapScale + '</div>';
+ } else {
+ scaleBarText = '';
+ }
+
+ var container = '<div ' + 'style="display: flex;">' + scaleBarText + scaleSteps.join('') + '</div>';
+ return container;
+ };
+ /**
+ * Creates a marker at given position
+ * @param {string} position - The position, absolute or relative
+ * @param {number} i - The iterator
+ * @returns {string} The stringified div containing the marker
+ */
+
+
+ ScaleLine.prototype.createMarker = function (position, i) {
+ var top = position === 'absolute' ? 3 : -10;
+ return '<div ' + 'class="ol-scale-step-marker" ' + 'style="position: ' + position + ';' + 'top: ' + top + 'px;"' + '></div>';
+ };
+ /**
+ * Creates the label for a marker marker at given position
+ * @param {number} i - The iterator
+ * @param {number} width - The width the scalebar will currently use
+ * @param {boolean} isLast - Flag indicating if we add the last step text
+ * @param {number} scale - The current scale for the whole scalebar
+ * @param {string} suffix - The suffix for the scale
+ * @returns {string} The stringified div containing the step text
+ */
+
+
+ ScaleLine.prototype.createStepText = function (i, width, isLast, scale, suffix) {
+ var length = i === 0 ? 0 : Math.round(scale / this.scaleBarSteps_ * i * 100) / 100;
+ var lengthString = length + (i === 0 ? '' : ' ' + suffix);
+ var margin = i === 0 ? -3 : width / this.scaleBarSteps_ * -1;
+ var minWidth = i === 0 ? 0 : width / this.scaleBarSteps_ * 2;
+ return '<div ' + 'class="ol-scale-step-text" ' + 'style="' + 'margin-left: ' + margin + 'px;' + 'text-align: ' + (i === 0 ? 'left' : 'center') + '; ' + 'min-width: ' + minWidth + 'px;' + 'left: ' + (isLast ? width + 'px' : 'unset') + ';"' + '>' + lengthString + '</div>';
+ };
+ /**
+ * Returns the appropriate scale for the given resolution and units.
+ * @return {number} The appropriate scale.
+ */
+
+
+ ScaleLine.prototype.getScaleForResolution = function () {
+ var resolution = (0, _proj.getPointResolution)(this.viewState_.projection, this.viewState_.resolution, this.viewState_.center);
+ var dpi = this.dpi_ || DEFAULT_DPI;
+ var mpu = this.viewState_.projection.getMetersPerUnit();
+ var inchesPerMeter = 39.37;
+ return parseFloat(resolution.toString()) * mpu * inchesPerMeter * dpi;
+ };
+ /**
+ * Update the scale line element.
+ * @param {import("../MapEvent.js").default} mapEvent Map event.
+ * @override
+ */
+
+
+ ScaleLine.prototype.render = function (mapEvent) {
+ var frameState = mapEvent.frameState;
+
+ if (!frameState) {
+ this.viewState_ = null;
+ } else {
+ this.viewState_ = frameState.viewState;
+ }
+
+ this.updateElement_();
+ };
+
+ return ScaleLine;
+}(_Control.default);
+
+var _default = ScaleLine;
+exports.default = _default;
+},{"./Control.js":"../../../node_modules/ol/control/Control.js","../proj/Units.js":"../../../node_modules/ol/proj/Units.js","../css.js":"../../../node_modules/ol/css.js","../proj.js":"../../../node_modules/ol/proj.js","../asserts.js":"../../../node_modules/ol/asserts.js","../Object.js":"../../../node_modules/ol/Object.js"}],"../../../node_modules/ol/control/ZoomSlider.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Control = _interopRequireDefault(require("./Control.js"));
+
+var _EventType = _interopRequireDefault(require("../events/EventType.js"));
+
+var _EventType2 = _interopRequireDefault(require("../pointer/EventType.js"));
+
+var _css = require("../css.js");
+
+var _math = require("../math.js");
+
+var _easing = require("../easing.js");
+
+var _events = require("../events.js");
+
+var _Event = require("../events/Event.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module ol/control/ZoomSlider
+ */
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+
+/**
+ * The enum for available directions.
+ *
+ * @enum {number}
+ */
+var Direction = {
+ VERTICAL: 0,
+ HORIZONTAL: 1
+};
+/**
+ * @typedef {Object} Options
+ * @property {string} [className='ol-zoomslider'] CSS class name.
+ * @property {number} [duration=200] Animation duration in milliseconds.
+ * @property {function(import("../MapEvent.js").default):void} [render] Function called when the control
+ * should be re-rendered. This is called in a `requestAnimationFrame` callback.
+ */
+
+/**
+ * @classdesc
+ * A slider type of control for zooming.
+ *
+ * Example:
+ *
+ * map.addControl(new ZoomSlider());
+ *
+ * @api
+ */
+
+var ZoomSlider =
+/** @class */
+function (_super) {
+ __extends(ZoomSlider, _super);
+ /**
+ * @param {Options=} opt_options Zoom slider options.
+ */
+
+
+ function ZoomSlider(opt_options) {
+ var _this = this;
+
+ var options = opt_options ? opt_options : {};
+ _this = _super.call(this, {
+ element: document.createElement('div'),
+ render: options.render
+ }) || this;
+ /**
+ * @type {!Array.<import("../events.js").EventsKey>}
+ * @private
+ */
+
+ _this.dragListenerKeys_ = [];
+ /**
+ * Will hold the current resolution of the view.
+ *
+ * @type {number|undefined}
+ * @private
+ */
+
+ _this.currentResolution_ = undefined;
+ /**
+ * The direction of the slider. Will be determined from actual display of the
+ * container and defaults to Direction.VERTICAL.
+ *
+ * @type {Direction}
+ * @private
+ */
+
+ _this.direction_ = Direction.VERTICAL;
+ /**
+ * @type {boolean}
+ * @private
+ */
+
+ _this.dragging_;
+ /**
+ * @type {number}
+ * @private
+ */
+
+ _this.heightLimit_ = 0;
+ /**
+ * @type {number}
+ * @private
+ */
+
+ _this.widthLimit_ = 0;
+ /**
+ * @type {number|undefined}
+ * @private
+ */
+
+ _this.startX_;
+ /**
+ * @type {number|undefined}
+ * @private
+ */
+
+ _this.startY_;
+ /**
+ * The calculated thumb size (border box plus margins). Set when initSlider_
+ * is called.
+ * @type {import("../size.js").Size}
+ * @private
+ */
+
+ _this.thumbSize_ = null;
+ /**
+ * Whether the slider is initialized.
+ * @type {boolean}
+ * @private
+ */
+
+ _this.sliderInitialized_ = false;
+ /**
+ * @type {number}
+ * @private
+ */
+
+ _this.duration_ = options.duration !== undefined ? options.duration : 200;
+ var className = options.className !== undefined ? options.className : 'ol-zoomslider';
+ var thumbElement = document.createElement('button');
+ thumbElement.setAttribute('type', 'button');
+ thumbElement.className = className + '-thumb ' + _css.CLASS_UNSELECTABLE;
+ var containerElement = _this.element;
+ containerElement.className = className + ' ' + _css.CLASS_UNSELECTABLE + ' ' + _css.CLASS_CONTROL;
+ containerElement.appendChild(thumbElement);
+ containerElement.addEventListener(_EventType2.default.POINTERDOWN, _this.handleDraggerStart_.bind(_this), false);
+ containerElement.addEventListener(_EventType2.default.POINTERMOVE, _this.handleDraggerDrag_.bind(_this), false);
+ containerElement.addEventListener(_EventType2.default.POINTERUP, _this.handleDraggerEnd_.bind(_this), false);
+ containerElement.addEventListener(_EventType.default.CLICK, _this.handleContainerClick_.bind(_this), false);
+ thumbElement.addEventListener(_EventType.default.CLICK, _Event.stopPropagation, false);
+ return _this;
+ }
+ /**
+ * Remove the control from its current map and attach it to the new map.
+ * Subclasses may set up event handlers to get notified about changes to
+ * the map here.
+ * @param {import("../PluggableMap.js").default} map Map.
+ * @api
+ */
+
+
+ ZoomSlider.prototype.setMap = function (map) {
+ _super.prototype.setMap.call(this, map);
+
+ if (map) {
+ map.render();
+ }
+ };
+ /**
+ * Initializes the slider element. This will determine and set this controls
+ * direction_ and also constrain the dragging of the thumb to always be within
+ * the bounds of the container.
+ *
+ * @return {boolean} Initialization successful
+ * @private
+ */
+
+
+ ZoomSlider.prototype.initSlider_ = function () {
+ var container = this.element;
+ var containerWidth = container.offsetWidth;
+ var containerHeight = container.offsetHeight;
+
+ if (containerWidth === 0 && containerHeight === 0) {
+ return this.sliderInitialized_ = false;
+ }
+
+ var thumb =
+ /** @type {HTMLElement} */
+ container.firstElementChild;
+ var computedStyle = getComputedStyle(thumb);
+ var thumbWidth = thumb.offsetWidth + parseFloat(computedStyle['marginRight']) + parseFloat(computedStyle['marginLeft']);
+ var thumbHeight = thumb.offsetHeight + parseFloat(computedStyle['marginTop']) + parseFloat(computedStyle['marginBottom']);
+ this.thumbSize_ = [thumbWidth, thumbHeight];
+
+ if (containerWidth > containerHeight) {
+ this.direction_ = Direction.HORIZONTAL;
+ this.widthLimit_ = containerWidth - thumbWidth;
+ } else {
+ this.direction_ = Direction.VERTICAL;
+ this.heightLimit_ = containerHeight - thumbHeight;
+ }
+
+ return this.sliderInitialized_ = true;
+ };
+ /**
+ * @param {PointerEvent} event The browser event to handle.
+ * @private
+ */
+
+
+ ZoomSlider.prototype.handleContainerClick_ = function (event) {
+ var view = this.getMap().getView();
+ var relativePosition = this.getRelativePosition_(event.offsetX - this.thumbSize_[0] / 2, event.offsetY - this.thumbSize_[1] / 2);
+ var resolution = this.getResolutionForPosition_(relativePosition);
+ var zoom = view.getConstrainedZoom(view.getZoomForResolution(resolution));
+ view.animateInternal({
+ zoom: zoom,
+ duration: this.duration_,
+ easing: _easing.easeOut
+ });
+ };
+ /**
+ * Handle dragger start events.
+ * @param {PointerEvent} event The drag event.
+ * @private
+ */
+
+
+ ZoomSlider.prototype.handleDraggerStart_ = function (event) {
+ if (!this.dragging_ && event.target === this.element.firstElementChild) {
+ var element =
+ /** @type {HTMLElement} */
+ this.element.firstElementChild;
+ this.getMap().getView().beginInteraction();
+ this.startX_ = event.clientX - parseFloat(element.style.left);
+ this.startY_ = event.clientY - parseFloat(element.style.top);
+ this.dragging_ = true;
+
+ if (this.dragListenerKeys_.length === 0) {
+ var drag = this.handleDraggerDrag_;
+ var end = this.handleDraggerEnd_;
+ this.dragListenerKeys_.push((0, _events.listen)(document, _EventType2.default.POINTERMOVE, drag, this), (0, _events.listen)(document, _EventType2.default.POINTERUP, end, this));
+ }
+ }
+ };
+ /**
+ * Handle dragger drag events.
+ *
+ * @param {PointerEvent} event The drag event.
+ * @private
+ */
+
+
+ ZoomSlider.prototype.handleDraggerDrag_ = function (event) {
+ if (this.dragging_) {
+ var deltaX = event.clientX - this.startX_;
+ var deltaY = event.clientY - this.startY_;
+ var relativePosition = this.getRelativePosition_(deltaX, deltaY);
+ this.currentResolution_ = this.getResolutionForPosition_(relativePosition);
+ this.getMap().getView().setResolution(this.currentResolution_);
+ }
+ };
+ /**
+ * Handle dragger end events.
+ * @param {PointerEvent} event The drag event.
+ * @private
+ */
+
+
+ ZoomSlider.prototype.handleDraggerEnd_ = function (event) {
+ if (this.dragging_) {
+ var view = this.getMap().getView();
+ view.endInteraction();
+ this.dragging_ = false;
+ this.startX_ = undefined;
+ this.startY_ = undefined;
+ this.dragListenerKeys_.forEach(_events.unlistenByKey);
+ this.dragListenerKeys_.length = 0;
+ }
+ };
+ /**
+ * Positions the thumb inside its container according to the given resolution.
+ *
+ * @param {number} res The res.
+ * @private
+ */
+
+
+ ZoomSlider.prototype.setThumbPosition_ = function (res) {
+ var position = this.getPositionForResolution_(res);
+ var thumb =
+ /** @type {HTMLElement} */
+ this.element.firstElementChild;
+
+ if (this.direction_ == Direction.HORIZONTAL) {
+ thumb.style.left = this.widthLimit_ * position + 'px';
+ } else {
+ thumb.style.top = this.heightLimit_ * position + 'px';
+ }
+ };
+ /**
+ * Calculates the relative position of the thumb given x and y offsets. The
+ * relative position scales from 0 to 1. The x and y offsets are assumed to be
+ * in pixel units within the dragger limits.
+ *
+ * @param {number} x Pixel position relative to the left of the slider.
+ * @param {number} y Pixel position relative to the top of the slider.
+ * @return {number} The relative position of the thumb.
+ * @private
+ */
+
+
+ ZoomSlider.prototype.getRelativePosition_ = function (x, y) {
+ var amount;
+
+ if (this.direction_ === Direction.HORIZONTAL) {
+ amount = x / this.widthLimit_;
+ } else {
+ amount = y / this.heightLimit_;
+ }
+
+ return (0, _math.clamp)(amount, 0, 1);
+ };
+ /**
+ * Calculates the corresponding resolution of the thumb given its relative
+ * position (where 0 is the minimum and 1 is the maximum).
+ *
+ * @param {number} position The relative position of the thumb.
+ * @return {number} The corresponding resolution.
+ * @private
+ */
+
+
+ ZoomSlider.prototype.getResolutionForPosition_ = function (position) {
+ var fn = this.getMap().getView().getResolutionForValueFunction();
+ return fn(1 - position);
+ };
+ /**
+ * Determines the relative position of the slider for the given resolution. A
+ * relative position of 0 corresponds to the minimum view resolution. A
+ * relative position of 1 corresponds to the maximum view resolution.
+ *
+ * @param {number} res The resolution.
+ * @return {number} The relative position value (between 0 and 1).
+ * @private
+ */
+
+
+ ZoomSlider.prototype.getPositionForResolution_ = function (res) {
+ var fn = this.getMap().getView().getValueForResolutionFunction();
+ return (0, _math.clamp)(1 - fn(res), 0, 1);
+ };
+ /**
+ * Update the zoomslider element.
+ * @param {import("../MapEvent.js").default} mapEvent Map event.
+ * @override
+ */
+
+
+ ZoomSlider.prototype.render = function (mapEvent) {
+ if (!mapEvent.frameState) {
+ return;
+ }
+
+ if (!this.sliderInitialized_ && !this.initSlider_()) {
+ return;
+ }
+
+ var res = mapEvent.frameState.viewState.resolution;
+ this.currentResolution_ = res;
+ this.setThumbPosition_(res);
+ };
+
+ return ZoomSlider;
+}(_Control.default);
+
+var _default = ZoomSlider;
+exports.default = _default;
+},{"./Control.js":"../../../node_modules/ol/control/Control.js","../events/EventType.js":"../../../node_modules/ol/events/EventType.js","../pointer/EventType.js":"../../../node_modules/ol/pointer/EventType.js","../css.js":"../../../node_modules/ol/css.js","../math.js":"../../../node_modules/ol/math.js","../easing.js":"../../../node_modules/ol/easing.js","../events.js":"../../../node_modules/ol/events.js","../events/Event.js":"../../../node_modules/ol/events/Event.js"}],"../../../node_modules/ol/control/ZoomToExtent.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Control = _interopRequireDefault(require("./Control.js"));
+
+var _EventType = _interopRequireDefault(require("../events/EventType.js"));
+
+var _css = require("../css.js");
+
+var _Polygon = require("../geom/Polygon.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/control/ZoomToExtent
+ */
+
+
+/**
+ * @typedef {Object} Options
+ * @property {string} [className='ol-zoom-extent'] Class name.
+ * @property {HTMLElement|string} [target] Specify a target if you want the control
+ * to be rendered outside of the map's viewport.
+ * @property {string|HTMLElement} [label='E'] Text label to use for the button.
+ * Instead of text, also an element (e.g. a `span` element) can be used.
+ * @property {string} [tipLabel='Fit to extent'] Text label to use for the button tip.
+ * @property {import("../extent.js").Extent} [extent] The extent to zoom to. If undefined the validity
+ * extent of the view projection is used.
+ */
+
+/**
+ * @classdesc
+ * A button control which, when pressed, changes the map view to a specific
+ * extent. To style this control use the css selector `.ol-zoom-extent`.
+ *
+ * @api
+ */
+var ZoomToExtent =
+/** @class */
+function (_super) {
+ __extends(ZoomToExtent, _super);
+ /**
+ * @param {Options=} opt_options Options.
+ */
+
+
+ function ZoomToExtent(opt_options) {
+ var _this = this;
+
+ var options = opt_options ? opt_options : {};
+ _this = _super.call(this, {
+ element: document.createElement('div'),
+ target: options.target
+ }) || this;
+ /**
+ * @type {?import("../extent.js").Extent}
+ * @protected
+ */
+
+ _this.extent = options.extent ? options.extent : null;
+ var className = options.className !== undefined ? options.className : 'ol-zoom-extent';
+ var label = options.label !== undefined ? options.label : 'E';
+ var tipLabel = options.tipLabel !== undefined ? options.tipLabel : 'Fit to extent';
+ var button = document.createElement('button');
+ button.setAttribute('type', 'button');
+ button.title = tipLabel;
+ button.appendChild(typeof label === 'string' ? document.createTextNode(label) : label);
+ button.addEventListener(_EventType.default.CLICK, _this.handleClick_.bind(_this), false);
+ var cssClasses = className + ' ' + _css.CLASS_UNSELECTABLE + ' ' + _css.CLASS_CONTROL;
+ var element = _this.element;
+ element.className = cssClasses;
+ element.appendChild(button);
+ return _this;
+ }
+ /**
+ * @param {MouseEvent} event The event to handle
+ * @private
+ */
+
+
+ ZoomToExtent.prototype.handleClick_ = function (event) {
+ event.preventDefault();
+ this.handleZoomToExtent();
+ };
+ /**
+ * @protected
+ */
+
+
+ ZoomToExtent.prototype.handleZoomToExtent = function () {
+ var map = this.getMap();
+ var view = map.getView();
+ var extent = !this.extent ? view.getProjection().getExtent() : this.extent;
+ view.fitInternal((0, _Polygon.fromExtent)(extent));
+ };
+
+ return ZoomToExtent;
+}(_Control.default);
+
+var _default = ZoomToExtent;
+exports.default = _default;
+},{"./Control.js":"../../../node_modules/ol/control/Control.js","../events/EventType.js":"../../../node_modules/ol/events/EventType.js","../css.js":"../../../node_modules/ol/css.js","../geom/Polygon.js":"../../../node_modules/ol/geom/Polygon.js"}],"../../../node_modules/ol/control.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.defaults = defaults;
+Object.defineProperty(exports, "Attribution", {
+ enumerable: true,
+ get: function () {
+ return _Attribution.default;
+ }
+});
+Object.defineProperty(exports, "Rotate", {
+ enumerable: true,
+ get: function () {
+ return _Rotate.default;
+ }
+});
+Object.defineProperty(exports, "Zoom", {
+ enumerable: true,
+ get: function () {
+ return _Zoom.default;
+ }
+});
+Object.defineProperty(exports, "Control", {
+ enumerable: true,
+ get: function () {
+ return _Control.default;
+ }
+});
+Object.defineProperty(exports, "FullScreen", {
+ enumerable: true,
+ get: function () {
+ return _FullScreen.default;
+ }
+});
+Object.defineProperty(exports, "MousePosition", {
+ enumerable: true,
+ get: function () {
+ return _MousePosition.default;
+ }
+});
+Object.defineProperty(exports, "OverviewMap", {
+ enumerable: true,
+ get: function () {
+ return _OverviewMap.default;
+ }
+});
+Object.defineProperty(exports, "ScaleLine", {
+ enumerable: true,
+ get: function () {
+ return _ScaleLine.default;
+ }
+});
+Object.defineProperty(exports, "ZoomSlider", {
+ enumerable: true,
+ get: function () {
+ return _ZoomSlider.default;
+ }
+});
+Object.defineProperty(exports, "ZoomToExtent", {
+ enumerable: true,
+ get: function () {
+ return _ZoomToExtent.default;
+ }
+});
+
+var _Attribution = _interopRequireDefault(require("./control/Attribution.js"));
+
+var _Collection = _interopRequireDefault(require("./Collection.js"));
+
+var _Rotate = _interopRequireDefault(require("./control/Rotate.js"));
+
+var _Zoom = _interopRequireDefault(require("./control/Zoom.js"));
+
+var _Control = _interopRequireDefault(require("./control/Control.js"));
+
+var _FullScreen = _interopRequireDefault(require("./control/FullScreen.js"));
+
+var _MousePosition = _interopRequireDefault(require("./control/MousePosition.js"));
+
+var _OverviewMap = _interopRequireDefault(require("./control/OverviewMap.js"));
+
+var _ScaleLine = _interopRequireDefault(require("./control/ScaleLine.js"));
+
+var _ZoomSlider = _interopRequireDefault(require("./control/ZoomSlider.js"));
+
+var _ZoomToExtent = _interopRequireDefault(require("./control/ZoomToExtent.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module ol/control
+ */
+
+/**
+ * @typedef {Object} DefaultsOptions
+ * @property {boolean} [attribution=true] Include
+ * {@link module:ol/control/Attribution~Attribution}.
+ * @property {import("./control/Attribution.js").Options} [attributionOptions]
+ * Options for {@link module:ol/control/Attribution~Attribution}.
+ * @property {boolean} [rotate=true] Include
+ * {@link module:ol/control/Rotate~Rotate}.
+ * @property {import("./control/Rotate.js").Options} [rotateOptions] Options
+ * for {@link module:ol/control/Rotate~Rotate}.
+ * @property {boolean} [zoom] Include {@link module:ol/control/Zoom~Zoom}.
+ * @property {import("./control/Zoom.js").Options} [zoomOptions] Options for
+ * {@link module:ol/control/Zoom~Zoom}.
+ * @api
+ */
+
+/**
+ * Set of controls included in maps by default. Unless configured otherwise,
+ * this returns a collection containing an instance of each of the following
+ * controls:
+ * * {@link module:ol/control/Zoom~Zoom}
+ * * {@link module:ol/control/Rotate~Rotate}
+ * * {@link module:ol/control/Attribution~Attribution}
+ *
+ * @param {DefaultsOptions=} opt_options
+ * Defaults options.
+ * @return {Collection<import("./control/Control.js").default>}
+ * Controls.
+ * @api
+ */
+function defaults(opt_options) {
+ var options = opt_options ? opt_options : {};
+ var controls = new _Collection.default();
+ var zoomControl = options.zoom !== undefined ? options.zoom : true;
+
+ if (zoomControl) {
+ controls.push(new _Zoom.default(options.zoomOptions));
+ }
+
+ var rotateControl = options.rotate !== undefined ? options.rotate : true;
+
+ if (rotateControl) {
+ controls.push(new _Rotate.default(options.rotateOptions));
+ }
+
+ var attributionControl = options.attribution !== undefined ? options.attribution : true;
+
+ if (attributionControl) {
+ controls.push(new _Attribution.default(options.attributionOptions));
+ }
+
+ return controls;
+}
+},{"./control/Attribution.js":"../../../node_modules/ol/control/Attribution.js","./Collection.js":"../../../node_modules/ol/Collection.js","./control/Rotate.js":"../../../node_modules/ol/control/Rotate.js","./control/Zoom.js":"../../../node_modules/ol/control/Zoom.js","./control/Control.js":"../../../node_modules/ol/control/Control.js","./control/FullScreen.js":"../../../node_modules/ol/control/FullScreen.js","./control/MousePosition.js":"../../../node_modules/ol/control/MousePosition.js","./control/OverviewMap.js":"../../../node_modules/ol/control/OverviewMap.js","./control/ScaleLine.js":"../../../node_modules/ol/control/ScaleLine.js","./control/ZoomSlider.js":"../../../node_modules/ol/control/ZoomSlider.js","./control/ZoomToExtent.js":"../../../node_modules/ol/control/ZoomToExtent.js"}],"../../../node_modules/ol/interaction/Property.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+/**
+ * @module ol/interaction/Property
+ */
+
+/**
+ * @enum {string}
+ */
+var _default = {
+ ACTIVE: 'active'
+};
+exports.default = _default;
+},{}],"../../../node_modules/ol/interaction/Interaction.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.pan = pan;
+exports.zoomByDelta = zoomByDelta;
+exports.default = void 0;
+
+var _Object = _interopRequireDefault(require("../Object.js"));
+
+var _Property = _interopRequireDefault(require("./Property.js"));
+
+var _easing = require("../easing.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/interaction/Interaction
+ */
+
+
+/**
+ * Object literal with config options for interactions.
+ * @typedef {Object} InteractionOptions
+ * @property {function(import("../MapBrowserEvent.js").default):boolean} handleEvent
+ * Method called by the map to notify the interaction that a browser event was
+ * dispatched to the map. If the function returns a falsy value, propagation of
+ * the event to other interactions in the map's interactions chain will be
+ * prevented (this includes functions with no explicit return). The interactions
+ * are traversed in reverse order of the interactions collection of the map.
+ */
+
+/**
+ * @classdesc
+ * Abstract base class; normally only used for creating subclasses and not
+ * instantiated in apps.
+ * User actions that change the state of the map. Some are similar to controls,
+ * but are not associated with a DOM element.
+ * For example, {@link module:ol/interaction/KeyboardZoom~KeyboardZoom} is
+ * functionally the same as {@link module:ol/control/Zoom~Zoom}, but triggered
+ * by a keyboard event not a button element event.
+ * Although interactions do not have a DOM element, some of them do render
+ * vectors and so are visible on the screen.
+ * @api
+ */
+var Interaction =
+/** @class */
+function (_super) {
+ __extends(Interaction, _super);
+ /**
+ * @param {InteractionOptions=} opt_options Options.
+ */
+
+
+ function Interaction(opt_options) {
+ var _this = _super.call(this) || this;
+
+ if (opt_options && opt_options.handleEvent) {
+ _this.handleEvent = opt_options.handleEvent;
+ }
+ /**
+ * @private
+ * @type {import("../PluggableMap.js").default}
+ */
+
+
+ _this.map_ = null;
+
+ _this.setActive(true);
+
+ return _this;
+ }
+ /**
+ * Return whether the interaction is currently active.
+ * @return {boolean} `true` if the interaction is active, `false` otherwise.
+ * @observable
+ * @api
+ */
+
+
+ Interaction.prototype.getActive = function () {
+ return (
+ /** @type {boolean} */
+ this.get(_Property.default.ACTIVE)
+ );
+ };
+ /**
+ * Get the map associated with this interaction.
+ * @return {import("../PluggableMap.js").default} Map.
+ * @api
+ */
+
+
+ Interaction.prototype.getMap = function () {
+ return this.map_;
+ };
+ /**
+ * Handles the {@link module:ol/MapBrowserEvent map browser event}.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Map browser event.
+ * @return {boolean} `false` to stop event propagation.
+ * @api
+ */
+
+
+ Interaction.prototype.handleEvent = function (mapBrowserEvent) {
+ return true;
+ };
+ /**
+ * Activate or deactivate the interaction.
+ * @param {boolean} active Active.
+ * @observable
+ * @api
+ */
+
+
+ Interaction.prototype.setActive = function (active) {
+ this.set(_Property.default.ACTIVE, active);
+ };
+ /**
+ * Remove the interaction from its current map and attach it to the new map.
+ * Subclasses may set up event handlers to get notified about changes to
+ * the map here.
+ * @param {import("../PluggableMap.js").default} map Map.
+ */
+
+
+ Interaction.prototype.setMap = function (map) {
+ this.map_ = map;
+ };
+
+ return Interaction;
+}(_Object.default);
+/**
+ * @param {import("../View.js").default} view View.
+ * @param {import("../coordinate.js").Coordinate} delta Delta.
+ * @param {number=} opt_duration Duration.
+ */
+
+
+function pan(view, delta, opt_duration) {
+ var currentCenter = view.getCenterInternal();
+
+ if (currentCenter) {
+ var center = [currentCenter[0] + delta[0], currentCenter[1] + delta[1]];
+ view.animateInternal({
+ duration: opt_duration !== undefined ? opt_duration : 250,
+ easing: _easing.linear,
+ center: view.getConstrainedCenter(center)
+ });
+ }
+}
+/**
+ * @param {import("../View.js").default} view View.
+ * @param {number} delta Delta from previous zoom level.
+ * @param {import("../coordinate.js").Coordinate=} opt_anchor Anchor coordinate in the user projection.
+ * @param {number=} opt_duration Duration.
+ */
+
+
+function zoomByDelta(view, delta, opt_anchor, opt_duration) {
+ var currentZoom = view.getZoom();
+
+ if (currentZoom === undefined) {
+ return;
+ }
+
+ var newZoom = view.getConstrainedZoom(currentZoom + delta);
+ var newResolution = view.getResolutionForZoom(newZoom);
+
+ if (view.getAnimating()) {
+ view.cancelAnimations();
+ }
+
+ view.animate({
+ resolution: newResolution,
+ anchor: opt_anchor,
+ duration: opt_duration !== undefined ? opt_duration : 250,
+ easing: _easing.easeOut
+ });
+}
+
+var _default = Interaction;
+exports.default = _default;
+},{"../Object.js":"../../../node_modules/ol/Object.js","./Property.js":"../../../node_modules/ol/interaction/Property.js","../easing.js":"../../../node_modules/ol/easing.js"}],"../../../node_modules/ol/interaction/DoubleClickZoom.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Interaction = _interopRequireWildcard(require("./Interaction.js"));
+
+var _MapBrowserEventType = _interopRequireDefault(require("../MapBrowserEventType.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/interaction/DoubleClickZoom
+ */
+
+
+/**
+ * @typedef {Object} Options
+ * @property {number} [duration=250] Animation duration in milliseconds.
+ * @property {number} [delta=1] The zoom delta applied on each double click.
+ */
+
+/**
+ * @classdesc
+ * Allows the user to zoom by double-clicking on the map.
+ * @api
+ */
+var DoubleClickZoom =
+/** @class */
+function (_super) {
+ __extends(DoubleClickZoom, _super);
+ /**
+ * @param {Options=} opt_options Options.
+ */
+
+
+ function DoubleClickZoom(opt_options) {
+ var _this = _super.call(this) || this;
+
+ var options = opt_options ? opt_options : {};
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.delta_ = options.delta ? options.delta : 1;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.duration_ = options.duration !== undefined ? options.duration : 250;
+ return _this;
+ }
+ /**
+ * Handles the {@link module:ol/MapBrowserEvent map browser event} (if it was a
+ * doubleclick) and eventually zooms the map.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Map browser event.
+ * @return {boolean} `false` to stop event propagation.
+ */
+
+
+ DoubleClickZoom.prototype.handleEvent = function (mapBrowserEvent) {
+ var stopEvent = false;
+
+ if (mapBrowserEvent.type == _MapBrowserEventType.default.DBLCLICK) {
+ var browserEvent =
+ /** @type {MouseEvent} */
+ mapBrowserEvent.originalEvent;
+ var map = mapBrowserEvent.map;
+ var anchor = mapBrowserEvent.coordinate;
+ var delta = browserEvent.shiftKey ? -this.delta_ : this.delta_;
+ var view = map.getView();
+ (0, _Interaction.zoomByDelta)(view, delta, anchor, this.duration_);
+ mapBrowserEvent.preventDefault();
+ stopEvent = true;
+ }
+
+ return !stopEvent;
+ };
+
+ return DoubleClickZoom;
+}(_Interaction.default);
+
+var _default = DoubleClickZoom;
+exports.default = _default;
+},{"./Interaction.js":"../../../node_modules/ol/interaction/Interaction.js","../MapBrowserEventType.js":"../../../node_modules/ol/MapBrowserEventType.js"}],"../../../node_modules/ol/interaction/Pointer.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.centroid = centroid;
+exports.default = void 0;
+
+var _Interaction = _interopRequireDefault(require("./Interaction.js"));
+
+var _MapBrowserEventType = _interopRequireDefault(require("../MapBrowserEventType.js"));
+
+var _obj = require("../obj.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/interaction/Pointer
+ */
+
+
+/**
+ * @typedef {Object} Options
+ * @property {function(import("../MapBrowserEvent.js").default):boolean} [handleDownEvent]
+ * Function handling "down" events. If the function returns `true` then a drag
+ * sequence is started.
+ * @property {function(import("../MapBrowserEvent.js").default):void} [handleDragEvent]
+ * Function handling "drag" events. This function is called on "move" events
+ * during a drag sequence.
+ * @property {function(import("../MapBrowserEvent.js").default):boolean} [handleEvent]
+ * Method called by the map to notify the interaction that a browser event was
+ * dispatched to the map. The function may return `false` to prevent the
+ * propagation of the event to other interactions in the map's interactions
+ * chain.
+ * @property {function(import("../MapBrowserEvent.js").default):void} [handleMoveEvent]
+ * Function handling "move" events. This function is called on "move" events.
+ * This functions is also called during a drag sequence, so during a drag
+ * sequence both the `handleDragEvent` function and this function are called.
+ * If `handleDownEvent` is defined and it returns true this function will not
+ * be called during a drag sequence.
+ * @property {function(import("../MapBrowserEvent.js").default):boolean} [handleUpEvent]
+ * Function handling "up" events. If the function returns `false` then the
+ * current drag sequence is stopped.
+ * @property {function(boolean):boolean} [stopDown]
+ * Should the down event be propagated to other interactions, or should be
+ * stopped?
+ */
+
+/**
+ * @classdesc
+ * Base class that calls user-defined functions on `down`, `move` and `up`
+ * events. This class also manages "drag sequences".
+ *
+ * When the `handleDownEvent` user function returns `true` a drag sequence is
+ * started. During a drag sequence the `handleDragEvent` user function is
+ * called on `move` events. The drag sequence ends when the `handleUpEvent`
+ * user function is called and returns `false`.
+ * @api
+ */
+var PointerInteraction =
+/** @class */
+function (_super) {
+ __extends(PointerInteraction, _super);
+ /**
+ * @param {Options=} opt_options Options.
+ */
+
+
+ function PointerInteraction(opt_options) {
+ var _this = this;
+
+ var options = opt_options ? opt_options : {};
+ _this = _super.call(this,
+ /** @type {import("./Interaction.js").InteractionOptions} */
+ options) || this;
+
+ if (options.handleDownEvent) {
+ _this.handleDownEvent = options.handleDownEvent;
+ }
+
+ if (options.handleDragEvent) {
+ _this.handleDragEvent = options.handleDragEvent;
+ }
+
+ if (options.handleMoveEvent) {
+ _this.handleMoveEvent = options.handleMoveEvent;
+ }
+
+ if (options.handleUpEvent) {
+ _this.handleUpEvent = options.handleUpEvent;
+ }
+
+ if (options.stopDown) {
+ _this.stopDown = options.stopDown;
+ }
+ /**
+ * @type {boolean}
+ * @protected
+ */
+
+
+ _this.handlingDownUpSequence = false;
+ /**
+ * @type {!Object<string, PointerEvent>}
+ * @private
+ */
+
+ _this.trackedPointers_ = {};
+ /**
+ * @type {Array<PointerEvent>}
+ * @protected
+ */
+
+ _this.targetPointers = [];
+ return _this;
+ }
+ /**
+ * Returns the current number of pointers involved in the interaction,
+ * e.g. `2` when two fingers are used.
+ * @return {number} The number of pointers.
+ * @api
+ */
+
+
+ PointerInteraction.prototype.getPointerCount = function () {
+ return this.targetPointers.length;
+ };
+ /**
+ * Handle pointer down events.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Event.
+ * @return {boolean} If the event was consumed.
+ * @protected
+ */
+
+
+ PointerInteraction.prototype.handleDownEvent = function (mapBrowserEvent) {
+ return false;
+ };
+ /**
+ * Handle pointer drag events.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Event.
+ * @protected
+ */
+
+
+ PointerInteraction.prototype.handleDragEvent = function (mapBrowserEvent) {};
+ /**
+ * Handles the {@link module:ol/MapBrowserEvent map browser event} and may call into
+ * other functions, if event sequences like e.g. 'drag' or 'down-up' etc. are
+ * detected.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Map browser event.
+ * @return {boolean} `false` to stop event propagation.
+ * @api
+ */
+
+
+ PointerInteraction.prototype.handleEvent = function (mapBrowserEvent) {
+ if (!mapBrowserEvent.originalEvent) {
+ return true;
+ }
+
+ var stopEvent = false;
+ this.updateTrackedPointers_(mapBrowserEvent);
+
+ if (this.handlingDownUpSequence) {
+ if (mapBrowserEvent.type == _MapBrowserEventType.default.POINTERDRAG) {
+ this.handleDragEvent(mapBrowserEvent); // prevent page scrolling during dragging
+
+ mapBrowserEvent.preventDefault();
+ } else if (mapBrowserEvent.type == _MapBrowserEventType.default.POINTERUP) {
+ var handledUp = this.handleUpEvent(mapBrowserEvent);
+ this.handlingDownUpSequence = handledUp && this.targetPointers.length > 0;
+ }
+ } else {
+ if (mapBrowserEvent.type == _MapBrowserEventType.default.POINTERDOWN) {
+ var handled = this.handleDownEvent(mapBrowserEvent);
+ this.handlingDownUpSequence = handled;
+ stopEvent = this.stopDown(handled);
+ } else if (mapBrowserEvent.type == _MapBrowserEventType.default.POINTERMOVE) {
+ this.handleMoveEvent(mapBrowserEvent);
+ }
+ }
+
+ return !stopEvent;
+ };
+ /**
+ * Handle pointer move events.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Event.
+ * @protected
+ */
+
+
+ PointerInteraction.prototype.handleMoveEvent = function (mapBrowserEvent) {};
+ /**
+ * Handle pointer up events.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Event.
+ * @return {boolean} If the event was consumed.
+ * @protected
+ */
+
+
+ PointerInteraction.prototype.handleUpEvent = function (mapBrowserEvent) {
+ return false;
+ };
+ /**
+ * This function is used to determine if "down" events should be propagated
+ * to other interactions or should be stopped.
+ * @param {boolean} handled Was the event handled by the interaction?
+ * @return {boolean} Should the `down` event be stopped?
+ */
+
+
+ PointerInteraction.prototype.stopDown = function (handled) {
+ return handled;
+ };
+ /**
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Event.
+ * @private
+ */
+
+
+ PointerInteraction.prototype.updateTrackedPointers_ = function (mapBrowserEvent) {
+ if (isPointerDraggingEvent(mapBrowserEvent)) {
+ var event_1 = mapBrowserEvent.originalEvent;
+ var id = event_1.pointerId.toString();
+
+ if (mapBrowserEvent.type == _MapBrowserEventType.default.POINTERUP) {
+ delete this.trackedPointers_[id];
+ } else if (mapBrowserEvent.type == _MapBrowserEventType.default.POINTERDOWN) {
+ this.trackedPointers_[id] = event_1;
+ } else if (id in this.trackedPointers_) {
+ // update only when there was a pointerdown event for this pointer
+ this.trackedPointers_[id] = event_1;
+ }
+
+ this.targetPointers = (0, _obj.getValues)(this.trackedPointers_);
+ }
+ };
+
+ return PointerInteraction;
+}(_Interaction.default);
+/**
+ * @param {Array<PointerEvent>} pointerEvents List of events.
+ * @return {import("../pixel.js").Pixel} Centroid pixel.
+ */
+
+
+function centroid(pointerEvents) {
+ var length = pointerEvents.length;
+ var clientX = 0;
+ var clientY = 0;
+
+ for (var i = 0; i < length; i++) {
+ clientX += pointerEvents[i].clientX;
+ clientY += pointerEvents[i].clientY;
+ }
+
+ return [clientX / length, clientY / length];
+}
+/**
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Event.
+ * @return {boolean} Whether the event is a pointerdown, pointerdrag
+ * or pointerup event.
+ */
+
+
+function isPointerDraggingEvent(mapBrowserEvent) {
+ var type = mapBrowserEvent.type;
+ return type === _MapBrowserEventType.default.POINTERDOWN || type === _MapBrowserEventType.default.POINTERDRAG || type === _MapBrowserEventType.default.POINTERUP;
+}
+
+var _default = PointerInteraction;
+exports.default = _default;
+},{"./Interaction.js":"../../../node_modules/ol/interaction/Interaction.js","../MapBrowserEventType.js":"../../../node_modules/ol/MapBrowserEventType.js","../obj.js":"../../../node_modules/ol/obj.js"}],"../../../node_modules/ol/events/condition.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.all = all;
+exports.primaryAction = exports.penOnly = exports.touchOnly = exports.mouseOnly = exports.targetNotEditable = exports.shiftKeyOnly = exports.platformModifierKeyOnly = exports.noModifierKeys = exports.doubleClick = exports.singleClick = exports.pointerMove = exports.never = exports.mouseActionButton = exports.click = exports.always = exports.focusWithTabindex = exports.focus = exports.altShiftKeysOnly = exports.altKeyOnly = void 0;
+
+var _MapBrowserEventType = _interopRequireDefault(require("../MapBrowserEventType.js"));
+
+var _functions = require("../functions.js");
+
+var _has = require("../has.js");
+
+var _asserts = require("../asserts.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module ol/events/condition
+ */
+
+/**
+ * A function that takes an {@link module:ol/MapBrowserEvent} and returns a
+ * `{boolean}`. If the condition is met, true should be returned.
+ *
+ * @typedef {function(this: ?, import("../MapBrowserEvent.js").default): boolean} Condition
+ */
+
+/**
+ * Creates a condition function that passes when all provided conditions pass.
+ * @param {...Condition} var_args Conditions to check.
+ * @return {Condition} Condition function.
+ */
+function all(var_args) {
+ var conditions = arguments;
+ /**
+ * @param {import("../MapBrowserEvent.js").default} event Event.
+ * @return {boolean} All conditions passed.
+ */
+
+ return function (event) {
+ var pass = true;
+
+ for (var i = 0, ii = conditions.length; i < ii; ++i) {
+ pass = pass && conditions[i](event);
+
+ if (!pass) {
+ break;
+ }
+ }
+
+ return pass;
+ };
+}
+/**
+ * Return `true` if only the alt-key is pressed, `false` otherwise (e.g. when
+ * additionally the shift-key is pressed).
+ *
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Map browser event.
+ * @return {boolean} True if only the alt key is pressed.
+ * @api
+ */
+
+
+var altKeyOnly = function (mapBrowserEvent) {
+ var originalEvent =
+ /** @type {KeyboardEvent|MouseEvent|TouchEvent} */
+ mapBrowserEvent.originalEvent;
+ return originalEvent.altKey && !(originalEvent.metaKey || originalEvent.ctrlKey) && !originalEvent.shiftKey;
+};
+/**
+ * Return `true` if only the alt-key and shift-key is pressed, `false` otherwise
+ * (e.g. when additionally the platform-modifier-key is pressed).
+ *
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Map browser event.
+ * @return {boolean} True if only the alt and shift keys are pressed.
+ * @api
+ */
+
+
+exports.altKeyOnly = altKeyOnly;
+
+var altShiftKeysOnly = function (mapBrowserEvent) {
+ var originalEvent =
+ /** @type {KeyboardEvent|MouseEvent|TouchEvent} */
+ mapBrowserEvent.originalEvent;
+ return originalEvent.altKey && !(originalEvent.metaKey || originalEvent.ctrlKey) && originalEvent.shiftKey;
+};
+/**
+ * Return `true` if the map has the focus. This condition requires a map target
+ * element with a `tabindex` attribute, e.g. `<div id="map" tabindex="1">`.
+ *
+ * @param {import("../MapBrowserEvent.js").default} event Map browser event.
+ * @return {boolean} The map has the focus.
+ * @api
+ */
+
+
+exports.altShiftKeysOnly = altShiftKeysOnly;
+
+var focus = function (event) {
+ return event.target.getTargetElement().contains(document.activeElement);
+};
+/**
+ * Return `true` if the map has the focus or no 'tabindex' attribute set.
+ *
+ * @param {import("../MapBrowserEvent.js").default} event Map browser event.
+ * @return {boolean} The map container has the focus or no 'tabindex' attribute.
+ */
+
+
+exports.focus = focus;
+
+var focusWithTabindex = function (event) {
+ return event.map.getTargetElement().hasAttribute('tabindex') ? focus(event) : true;
+};
+/**
+ * Return always true.
+ *
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Map browser event.
+ * @return {boolean} True.
+ * @api
+ */
+
+
+exports.focusWithTabindex = focusWithTabindex;
+var always = _functions.TRUE;
+/**
+ * Return `true` if the event is a `click` event, `false` otherwise.
+ *
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Map browser event.
+ * @return {boolean} True if the event is a map `click` event.
+ * @api
+ */
+
+exports.always = always;
+
+var click = function (mapBrowserEvent) {
+ return mapBrowserEvent.type == _MapBrowserEventType.default.CLICK;
+};
+/**
+ * Return `true` if the event has an "action"-producing mouse button.
+ *
+ * By definition, this includes left-click on windows/linux, and left-click
+ * without the ctrl key on Macs.
+ *
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Map browser event.
+ * @return {boolean} The result.
+ */
+
+
+exports.click = click;
+
+var mouseActionButton = function (mapBrowserEvent) {
+ var originalEvent =
+ /** @type {MouseEvent} */
+ mapBrowserEvent.originalEvent;
+ return originalEvent.button == 0 && !(_has.WEBKIT && _has.MAC && originalEvent.ctrlKey);
+};
+/**
+ * Return always false.
+ *
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Map browser event.
+ * @return {boolean} False.
+ * @api
+ */
+
+
+exports.mouseActionButton = mouseActionButton;
+var never = _functions.FALSE;
+/**
+ * Return `true` if the browser event is a `pointermove` event, `false`
+ * otherwise.
+ *
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Map browser event.
+ * @return {boolean} True if the browser event is a `pointermove` event.
+ * @api
+ */
+
+exports.never = never;
+
+var pointerMove = function (mapBrowserEvent) {
+ return mapBrowserEvent.type == 'pointermove';
+};
+/**
+ * Return `true` if the event is a map `singleclick` event, `false` otherwise.
+ *
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Map browser event.
+ * @return {boolean} True if the event is a map `singleclick` event.
+ * @api
+ */
+
+
+exports.pointerMove = pointerMove;
+
+var singleClick = function (mapBrowserEvent) {
+ return mapBrowserEvent.type == _MapBrowserEventType.default.SINGLECLICK;
+};
+/**
+ * Return `true` if the event is a map `dblclick` event, `false` otherwise.
+ *
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Map browser event.
+ * @return {boolean} True if the event is a map `dblclick` event.
+ * @api
+ */
+
+
+exports.singleClick = singleClick;
+
+var doubleClick = function (mapBrowserEvent) {
+ return mapBrowserEvent.type == _MapBrowserEventType.default.DBLCLICK;
+};
+/**
+ * Return `true` if no modifier key (alt-, shift- or platform-modifier-key) is
+ * pressed.
+ *
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Map browser event.
+ * @return {boolean} True only if there no modifier keys are pressed.
+ * @api
+ */
+
+
+exports.doubleClick = doubleClick;
+
+var noModifierKeys = function (mapBrowserEvent) {
+ var originalEvent =
+ /** @type {KeyboardEvent|MouseEvent|TouchEvent} */
+ mapBrowserEvent.originalEvent;
+ return !originalEvent.altKey && !(originalEvent.metaKey || originalEvent.ctrlKey) && !originalEvent.shiftKey;
+};
+/**
+ * Return `true` if only the platform-modifier-key (the meta-key on Mac,
+ * ctrl-key otherwise) is pressed, `false` otherwise (e.g. when additionally
+ * the shift-key is pressed).
+ *
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Map browser event.
+ * @return {boolean} True if only the platform modifier key is pressed.
+ * @api
+ */
+
+
+exports.noModifierKeys = noModifierKeys;
+
+var platformModifierKeyOnly = function (mapBrowserEvent) {
+ var originalEvent =
+ /** @type {KeyboardEvent|MouseEvent|TouchEvent} */
+ mapBrowserEvent.originalEvent;
+ return !originalEvent.altKey && (_has.MAC ? originalEvent.metaKey : originalEvent.ctrlKey) && !originalEvent.shiftKey;
+};
+/**
+ * Return `true` if only the shift-key is pressed, `false` otherwise (e.g. when
+ * additionally the alt-key is pressed).
+ *
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Map browser event.
+ * @return {boolean} True if only the shift key is pressed.
+ * @api
+ */
+
+
+exports.platformModifierKeyOnly = platformModifierKeyOnly;
+
+var shiftKeyOnly = function (mapBrowserEvent) {
+ var originalEvent =
+ /** @type {KeyboardEvent|MouseEvent|TouchEvent} */
+ mapBrowserEvent.originalEvent;
+ return !originalEvent.altKey && !(originalEvent.metaKey || originalEvent.ctrlKey) && originalEvent.shiftKey;
+};
+/**
+ * Return `true` if the target element is not editable, i.e. not a `<input>`-,
+ * `<select>`- or `<textarea>`-element, `false` otherwise.
+ *
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Map browser event.
+ * @return {boolean} True only if the target element is not editable.
+ * @api
+ */
+
+
+exports.shiftKeyOnly = shiftKeyOnly;
+
+var targetNotEditable = function (mapBrowserEvent) {
+ var originalEvent =
+ /** @type {KeyboardEvent|MouseEvent|TouchEvent} */
+ mapBrowserEvent.originalEvent;
+ var tagName =
+ /** @type {Element} */
+ originalEvent.target.tagName;
+ return tagName !== 'INPUT' && tagName !== 'SELECT' && tagName !== 'TEXTAREA';
+};
+/**
+ * Return `true` if the event originates from a mouse device.
+ *
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Map browser event.
+ * @return {boolean} True if the event originates from a mouse device.
+ * @api
+ */
+
+
+exports.targetNotEditable = targetNotEditable;
+
+var mouseOnly = function (mapBrowserEvent) {
+ var pointerEvent =
+ /** @type {import("../MapBrowserEvent").default} */
+ mapBrowserEvent.originalEvent;
+ (0, _asserts.assert)(pointerEvent !== undefined, 56); // mapBrowserEvent must originate from a pointer event
+ // see http://www.w3.org/TR/pointerevents/#widl-PointerEvent-pointerType
+
+ return pointerEvent.pointerType == 'mouse';
+};
+/**
+ * Return `true` if the event originates from a touchable device.
+ *
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Map browser event.
+ * @return {boolean} True if the event originates from a touchable device.
+ * @api
+ */
+
+
+exports.mouseOnly = mouseOnly;
+
+var touchOnly = function (mapBrowserEvent) {
+ var pointerEvt =
+ /** @type {import("../MapBrowserEvent").default} */
+ mapBrowserEvent.originalEvent;
+ (0, _asserts.assert)(pointerEvt !== undefined, 56); // mapBrowserEvent must originate from a pointer event
+ // see http://www.w3.org/TR/pointerevents/#widl-PointerEvent-pointerType
+
+ return pointerEvt.pointerType === 'touch';
+};
+/**
+ * Return `true` if the event originates from a digital pen.
+ *
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Map browser event.
+ * @return {boolean} True if the event originates from a digital pen.
+ * @api
+ */
+
+
+exports.touchOnly = touchOnly;
+
+var penOnly = function (mapBrowserEvent) {
+ var pointerEvt =
+ /** @type {import("../MapBrowserEvent").default} */
+ mapBrowserEvent.originalEvent;
+ (0, _asserts.assert)(pointerEvt !== undefined, 56); // mapBrowserEvent must originate from a pointer event
+ // see http://www.w3.org/TR/pointerevents/#widl-PointerEvent-pointerType
+
+ return pointerEvt.pointerType === 'pen';
+};
+/**
+ * Return `true` if the event originates from a primary pointer in
+ * contact with the surface or if the left mouse button is pressed.
+ * See http://www.w3.org/TR/pointerevents/#button-states.
+ *
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Map browser event.
+ * @return {boolean} True if the event originates from a primary pointer.
+ * @api
+ */
+
+
+exports.penOnly = penOnly;
+
+var primaryAction = function (mapBrowserEvent) {
+ var pointerEvent =
+ /** @type {import("../MapBrowserEvent").default} */
+ mapBrowserEvent.originalEvent;
+ (0, _asserts.assert)(pointerEvent !== undefined, 56); // mapBrowserEvent must originate from a pointer event
+
+ return pointerEvent.isPrimary && pointerEvent.button === 0;
+};
+
+exports.primaryAction = primaryAction;
+},{"../MapBrowserEventType.js":"../../../node_modules/ol/MapBrowserEventType.js","../functions.js":"../../../node_modules/ol/functions.js","../has.js":"../../../node_modules/ol/has.js","../asserts.js":"../../../node_modules/ol/asserts.js"}],"../../../node_modules/ol/interaction/DragPan.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Pointer = _interopRequireWildcard(require("./Pointer.js"));
+
+var _functions = require("../functions.js");
+
+var _condition = require("../events/condition.js");
+
+var _easing = require("../easing.js");
+
+var _coordinate = require("../coordinate.js");
+
+function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/interaction/DragPan
+ */
+
+
+/**
+ * @typedef {Object} Options
+ * @property {import("../events/condition.js").Condition} [condition] A function that takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a boolean
+ * to indicate whether that event should be handled.
+ * Default is {@link module:ol/events/condition~noModifierKeys} and {@link module:ol/events/condition~primaryAction}.
+ * @property {boolean} [onFocusOnly=false] When the map's target has a `tabindex` attribute set,
+ * the interaction will only handle events when the map has the focus.
+ * @property {import("../Kinetic.js").default} [kinetic] Kinetic inertia to apply to the pan.
+ */
+
+/**
+ * @classdesc
+ * Allows the user to pan the map by dragging the map.
+ * @api
+ */
+var DragPan =
+/** @class */
+function (_super) {
+ __extends(DragPan, _super);
+ /**
+ * @param {Options=} opt_options Options.
+ */
+
+
+ function DragPan(opt_options) {
+ var _this = _super.call(this, {
+ stopDown: _functions.FALSE
+ }) || this;
+
+ var options = opt_options ? opt_options : {};
+ /**
+ * @private
+ * @type {import("../Kinetic.js").default|undefined}
+ */
+
+ _this.kinetic_ = options.kinetic;
+ /**
+ * @type {import("../pixel.js").Pixel}
+ */
+
+ _this.lastCentroid = null;
+ /**
+ * @type {number}
+ */
+
+ _this.lastPointersCount_;
+ /**
+ * @type {boolean}
+ */
+
+ _this.panning_ = false;
+ var condition = options.condition ? options.condition : (0, _condition.all)(_condition.noModifierKeys, _condition.primaryAction);
+ /**
+ * @private
+ * @type {import("../events/condition.js").Condition}
+ */
+
+ _this.condition_ = options.onFocusOnly ? (0, _condition.all)(_condition.focusWithTabindex, condition) : condition;
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ _this.noKinetic_ = false;
+ return _this;
+ }
+ /**
+ * Handle pointer drag events.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Event.
+ */
+
+
+ DragPan.prototype.handleDragEvent = function (mapBrowserEvent) {
+ if (!this.panning_) {
+ this.panning_ = true;
+ this.getMap().getView().beginInteraction();
+ }
+
+ var targetPointers = this.targetPointers;
+ var centroid = (0, _Pointer.centroid)(targetPointers);
+
+ if (targetPointers.length == this.lastPointersCount_) {
+ if (this.kinetic_) {
+ this.kinetic_.update(centroid[0], centroid[1]);
+ }
+
+ if (this.lastCentroid) {
+ var delta = [this.lastCentroid[0] - centroid[0], centroid[1] - this.lastCentroid[1]];
+ var map = mapBrowserEvent.map;
+ var view = map.getView();
+ (0, _coordinate.scale)(delta, view.getResolution());
+ (0, _coordinate.rotate)(delta, view.getRotation());
+ view.adjustCenterInternal(delta);
+ }
+ } else if (this.kinetic_) {
+ // reset so we don't overestimate the kinetic energy after
+ // after one finger down, tiny drag, second finger down
+ this.kinetic_.begin();
+ }
+
+ this.lastCentroid = centroid;
+ this.lastPointersCount_ = targetPointers.length;
+ mapBrowserEvent.originalEvent.preventDefault();
+ };
+ /**
+ * Handle pointer up events.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Event.
+ * @return {boolean} If the event was consumed.
+ */
+
+
+ DragPan.prototype.handleUpEvent = function (mapBrowserEvent) {
+ var map = mapBrowserEvent.map;
+ var view = map.getView();
+
+ if (this.targetPointers.length === 0) {
+ if (!this.noKinetic_ && this.kinetic_ && this.kinetic_.end()) {
+ var distance = this.kinetic_.getDistance();
+ var angle = this.kinetic_.getAngle();
+ var center = view.getCenterInternal();
+ var centerpx = map.getPixelFromCoordinateInternal(center);
+ var dest = map.getCoordinateFromPixelInternal([centerpx[0] - distance * Math.cos(angle), centerpx[1] - distance * Math.sin(angle)]);
+ view.animateInternal({
+ center: view.getConstrainedCenter(dest),
+ duration: 500,
+ easing: _easing.easeOut
+ });
+ }
+
+ if (this.panning_) {
+ this.panning_ = false;
+ view.endInteraction();
+ }
+
+ return false;
+ } else {
+ if (this.kinetic_) {
+ // reset so we don't overestimate the kinetic energy after
+ // after one finger up, tiny drag, second finger up
+ this.kinetic_.begin();
+ }
+
+ this.lastCentroid = null;
+ return true;
+ }
+ };
+ /**
+ * Handle pointer down events.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Event.
+ * @return {boolean} If the event was consumed.
+ */
+
+
+ DragPan.prototype.handleDownEvent = function (mapBrowserEvent) {
+ if (this.targetPointers.length > 0 && this.condition_(mapBrowserEvent)) {
+ var map = mapBrowserEvent.map;
+ var view = map.getView();
+ this.lastCentroid = null; // stop any current animation
+
+ if (view.getAnimating()) {
+ view.cancelAnimations();
+ }
+
+ if (this.kinetic_) {
+ this.kinetic_.begin();
+ } // No kinetic as soon as more than one pointer on the screen is
+ // detected. This is to prevent nasty pans after pinch.
+
+
+ this.noKinetic_ = this.targetPointers.length > 1;
+ return true;
+ } else {
+ return false;
+ }
+ };
+
+ return DragPan;
+}(_Pointer.default);
+
+var _default = DragPan;
+exports.default = _default;
+},{"./Pointer.js":"../../../node_modules/ol/interaction/Pointer.js","../functions.js":"../../../node_modules/ol/functions.js","../events/condition.js":"../../../node_modules/ol/events/condition.js","../easing.js":"../../../node_modules/ol/easing.js","../coordinate.js":"../../../node_modules/ol/coordinate.js"}],"../../../node_modules/ol/interaction/DragRotate.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Pointer = _interopRequireDefault(require("./Pointer.js"));
+
+var _functions = require("../functions.js");
+
+var _condition = require("../events/condition.js");
+
+var _rotationconstraint = require("../rotationconstraint.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/interaction/DragRotate
+ */
+
+
+/**
+ * @typedef {Object} Options
+ * @property {import("../events/condition.js").Condition} [condition] A function that takes an
+ * {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a boolean
+ * to indicate whether that event should be handled.
+ * Default is {@link module:ol/events/condition~altShiftKeysOnly}.
+ * @property {number} [duration=250] Animation duration in milliseconds.
+ */
+
+/**
+ * @classdesc
+ * Allows the user to rotate the map by clicking and dragging on the map,
+ * normally combined with an {@link module:ol/events/condition} that limits
+ * it to when the alt and shift keys are held down.
+ *
+ * This interaction is only supported for mouse devices.
+ * @api
+ */
+var DragRotate =
+/** @class */
+function (_super) {
+ __extends(DragRotate, _super);
+ /**
+ * @param {Options=} opt_options Options.
+ */
+
+
+ function DragRotate(opt_options) {
+ var _this = this;
+
+ var options = opt_options ? opt_options : {};
+ _this = _super.call(this, {
+ stopDown: _functions.FALSE
+ }) || this;
+ /**
+ * @private
+ * @type {import("../events/condition.js").Condition}
+ */
+
+ _this.condition_ = options.condition ? options.condition : _condition.altShiftKeysOnly;
+ /**
+ * @private
+ * @type {number|undefined}
+ */
+
+ _this.lastAngle_ = undefined;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.duration_ = options.duration !== undefined ? options.duration : 250;
+ return _this;
+ }
+ /**
+ * Handle pointer drag events.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Event.
+ */
+
+
+ DragRotate.prototype.handleDragEvent = function (mapBrowserEvent) {
+ if (!(0, _condition.mouseOnly)(mapBrowserEvent)) {
+ return;
+ }
+
+ var map = mapBrowserEvent.map;
+ var view = map.getView();
+
+ if (view.getConstraints().rotation === _rotationconstraint.disable) {
+ return;
+ }
+
+ var size = map.getSize();
+ var offset = mapBrowserEvent.pixel;
+ var theta = Math.atan2(size[1] / 2 - offset[1], offset[0] - size[0] / 2);
+
+ if (this.lastAngle_ !== undefined) {
+ var delta = theta - this.lastAngle_;
+ view.adjustRotationInternal(-delta);
+ }
+
+ this.lastAngle_ = theta;
+ };
+ /**
+ * Handle pointer up events.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Event.
+ * @return {boolean} If the event was consumed.
+ */
+
+
+ DragRotate.prototype.handleUpEvent = function (mapBrowserEvent) {
+ if (!(0, _condition.mouseOnly)(mapBrowserEvent)) {
+ return true;
+ }
+
+ var map = mapBrowserEvent.map;
+ var view = map.getView();
+ view.endInteraction(this.duration_);
+ return false;
+ };
+ /**
+ * Handle pointer down events.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Event.
+ * @return {boolean} If the event was consumed.
+ */
+
+
+ DragRotate.prototype.handleDownEvent = function (mapBrowserEvent) {
+ if (!(0, _condition.mouseOnly)(mapBrowserEvent)) {
+ return false;
+ }
+
+ if ((0, _condition.mouseActionButton)(mapBrowserEvent) && this.condition_(mapBrowserEvent)) {
+ var map = mapBrowserEvent.map;
+ map.getView().beginInteraction();
+ this.lastAngle_ = undefined;
+ return true;
+ } else {
+ return false;
+ }
+ };
+
+ return DragRotate;
+}(_Pointer.default);
+
+var _default = DragRotate;
+exports.default = _default;
+},{"./Pointer.js":"../../../node_modules/ol/interaction/Pointer.js","../functions.js":"../../../node_modules/ol/functions.js","../events/condition.js":"../../../node_modules/ol/events/condition.js","../rotationconstraint.js":"../../../node_modules/ol/rotationconstraint.js"}],"../../../node_modules/ol/render/Box.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Disposable = _interopRequireDefault(require("../Disposable.js"));
+
+var _Polygon = _interopRequireDefault(require("../geom/Polygon.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module ol/render/Box
+ */
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+
+var RenderBox =
+/** @class */
+function (_super) {
+ __extends(RenderBox, _super);
+ /**
+ * @param {string} className CSS class name.
+ */
+
+
+ function RenderBox(className) {
+ var _this = _super.call(this) || this;
+ /**
+ * @type {import("../geom/Polygon.js").default}
+ * @private
+ */
+
+
+ _this.geometry_ = null;
+ /**
+ * @type {HTMLDivElement}
+ * @private
+ */
+
+ _this.element_ = document.createElement('div');
+ _this.element_.style.position = 'absolute';
+ _this.element_.style.pointerEvents = 'auto';
+ _this.element_.className = 'ol-box ' + className;
+ /**
+ * @private
+ * @type {import("../PluggableMap.js").default}
+ */
+
+ _this.map_ = null;
+ /**
+ * @private
+ * @type {import("../pixel.js").Pixel}
+ */
+
+ _this.startPixel_ = null;
+ /**
+ * @private
+ * @type {import("../pixel.js").Pixel}
+ */
+
+ _this.endPixel_ = null;
+ return _this;
+ }
+ /**
+ * Clean up.
+ */
+
+
+ RenderBox.prototype.disposeInternal = function () {
+ this.setMap(null);
+ };
+ /**
+ * @private
+ */
+
+
+ RenderBox.prototype.render_ = function () {
+ var startPixel = this.startPixel_;
+ var endPixel = this.endPixel_;
+ var px = 'px';
+ var style = this.element_.style;
+ style.left = Math.min(startPixel[0], endPixel[0]) + px;
+ style.top = Math.min(startPixel[1], endPixel[1]) + px;
+ style.width = Math.abs(endPixel[0] - startPixel[0]) + px;
+ style.height = Math.abs(endPixel[1] - startPixel[1]) + px;
+ };
+ /**
+ * @param {import("../PluggableMap.js").default} map Map.
+ */
+
+
+ RenderBox.prototype.setMap = function (map) {
+ if (this.map_) {
+ this.map_.getOverlayContainer().removeChild(this.element_);
+ var style = this.element_.style;
+ style.left = 'inherit';
+ style.top = 'inherit';
+ style.width = 'inherit';
+ style.height = 'inherit';
+ }
+
+ this.map_ = map;
+
+ if (this.map_) {
+ this.map_.getOverlayContainer().appendChild(this.element_);
+ }
+ };
+ /**
+ * @param {import("../pixel.js").Pixel} startPixel Start pixel.
+ * @param {import("../pixel.js").Pixel} endPixel End pixel.
+ */
+
+
+ RenderBox.prototype.setPixels = function (startPixel, endPixel) {
+ this.startPixel_ = startPixel;
+ this.endPixel_ = endPixel;
+ this.createOrUpdateGeometry();
+ this.render_();
+ };
+ /**
+ * Creates or updates the cached geometry.
+ */
+
+
+ RenderBox.prototype.createOrUpdateGeometry = function () {
+ var startPixel = this.startPixel_;
+ var endPixel = this.endPixel_;
+ var pixels = [startPixel, [startPixel[0], endPixel[1]], endPixel, [endPixel[0], startPixel[1]]];
+ var coordinates = pixels.map(this.map_.getCoordinateFromPixelInternal, this.map_); // close the polygon
+
+ coordinates[4] = coordinates[0].slice();
+
+ if (!this.geometry_) {
+ this.geometry_ = new _Polygon.default([coordinates]);
+ } else {
+ this.geometry_.setCoordinates([coordinates]);
+ }
+ };
+ /**
+ * @return {import("../geom/Polygon.js").default} Geometry.
+ */
+
+
+ RenderBox.prototype.getGeometry = function () {
+ return this.geometry_;
+ };
+
+ return RenderBox;
+}(_Disposable.default);
+
+var _default = RenderBox;
+exports.default = _default;
+},{"../Disposable.js":"../../../node_modules/ol/Disposable.js","../geom/Polygon.js":"../../../node_modules/ol/geom/Polygon.js"}],"../../../node_modules/ol/interaction/DragBox.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Event = _interopRequireDefault(require("../events/Event.js"));
+
+var _Pointer = _interopRequireDefault(require("./Pointer.js"));
+
+var _Box = _interopRequireDefault(require("../render/Box.js"));
+
+var _condition = require("../events/condition.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/interaction/DragBox
+ */
+// FIXME draw drag box
+
+
+/**
+ * A function that takes a {@link module:ol/MapBrowserEvent} and two
+ * {@link module:ol/pixel~Pixel}s and returns a `{boolean}`. If the condition is met,
+ * true should be returned.
+ * @typedef {function(this: ?, import("../MapBrowserEvent.js").default, import("../pixel.js").Pixel, import("../pixel.js").Pixel):boolean} EndCondition
+ */
+
+/**
+ * @typedef {Object} Options
+ * @property {string} [className='ol-dragbox'] CSS class name for styling the box.
+ * @property {import("../events/condition.js").Condition} [condition] A function that takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a boolean
+ * to indicate whether that event should be handled.
+ * Default is {@link ol/events/condition~mouseActionButton}.
+ * @property {number} [minArea=64] The minimum area of the box in pixel, this value is used by the default
+ * `boxEndCondition` function.
+ * @property {EndCondition} [boxEndCondition] A function that takes a {@link module:ol/MapBrowserEvent~MapBrowserEvent} and two
+ * {@link module:ol/pixel~Pixel}s to indicate whether a `boxend` event should be fired.
+ * Default is `true` if the area of the box is bigger than the `minArea` option.
+ * @property {function(this:DragBox, import("../MapBrowserEvent.js").default):void} [onBoxEnd] Code to execute just
+ * before `boxend` is fired.
+ */
+
+/**
+ * @enum {string}
+ */
+var DragBoxEventType = {
+ /**
+ * Triggered upon drag box start.
+ * @event DragBoxEvent#boxstart
+ * @api
+ */
+ BOXSTART: 'boxstart',
+
+ /**
+ * Triggered on drag when box is active.
+ * @event DragBoxEvent#boxdrag
+ * @api
+ */
+ BOXDRAG: 'boxdrag',
+
+ /**
+ * Triggered upon drag box end.
+ * @event DragBoxEvent#boxend
+ * @api
+ */
+ BOXEND: 'boxend'
+};
+/**
+ * @classdesc
+ * Events emitted by {@link module:ol/interaction/DragBox~DragBox} instances are instances of
+ * this type.
+ */
+
+var DragBoxEvent =
+/** @class */
+function (_super) {
+ __extends(DragBoxEvent, _super);
+ /**
+ * @param {string} type The event type.
+ * @param {import("../coordinate.js").Coordinate} coordinate The event coordinate.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Originating event.
+ */
+
+
+ function DragBoxEvent(type, coordinate, mapBrowserEvent) {
+ var _this = _super.call(this, type) || this;
+ /**
+ * The coordinate of the drag event.
+ * @const
+ * @type {import("../coordinate.js").Coordinate}
+ * @api
+ */
+
+
+ _this.coordinate = coordinate;
+ /**
+ * @const
+ * @type {import("../MapBrowserEvent.js").default}
+ * @api
+ */
+
+ _this.mapBrowserEvent = mapBrowserEvent;
+ return _this;
+ }
+
+ return DragBoxEvent;
+}(_Event.default);
+/**
+ * @classdesc
+ * Allows the user to draw a vector box by clicking and dragging on the map,
+ * normally combined with an {@link module:ol/events/condition} that limits
+ * it to when the shift or other key is held down. This is used, for example,
+ * for zooming to a specific area of the map
+ * (see {@link module:ol/interaction/DragZoom~DragZoom} and
+ * {@link module:ol/interaction/DragRotateAndZoom}).
+ *
+ * @fires DragBoxEvent
+ * @api
+ */
+
+
+var DragBox =
+/** @class */
+function (_super) {
+ __extends(DragBox, _super);
+ /**
+ * @param {Options=} opt_options Options.
+ */
+
+
+ function DragBox(opt_options) {
+ var _this = _super.call(this) || this;
+
+ var options = opt_options ? opt_options : {};
+ /**
+ * @type {import("../render/Box.js").default}
+ * @private
+ */
+
+ _this.box_ = new _Box.default(options.className || 'ol-dragbox');
+ /**
+ * @type {number}
+ * @private
+ */
+
+ _this.minArea_ = options.minArea !== undefined ? options.minArea : 64;
+
+ if (options.onBoxEnd) {
+ _this.onBoxEnd = options.onBoxEnd;
+ }
+ /**
+ * @type {import("../pixel.js").Pixel}
+ * @private
+ */
+
+
+ _this.startPixel_ = null;
+ /**
+ * @private
+ * @type {import("../events/condition.js").Condition}
+ */
+
+ _this.condition_ = options.condition ? options.condition : _condition.mouseActionButton;
+ /**
+ * @private
+ * @type {EndCondition}
+ */
+
+ _this.boxEndCondition_ = options.boxEndCondition ? options.boxEndCondition : _this.defaultBoxEndCondition;
+ return _this;
+ }
+ /**
+ * The default condition for determining whether the boxend event
+ * should fire.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent The originating MapBrowserEvent
+ * leading to the box end.
+ * @param {import("../pixel.js").Pixel} startPixel The starting pixel of the box.
+ * @param {import("../pixel.js").Pixel} endPixel The end pixel of the box.
+ * @return {boolean} Whether or not the boxend condition should be fired.
+ */
+
+
+ DragBox.prototype.defaultBoxEndCondition = function (mapBrowserEvent, startPixel, endPixel) {
+ var width = endPixel[0] - startPixel[0];
+ var height = endPixel[1] - startPixel[1];
+ return width * width + height * height >= this.minArea_;
+ };
+ /**
+ * Returns geometry of last drawn box.
+ * @return {import("../geom/Polygon.js").default} Geometry.
+ * @api
+ */
+
+
+ DragBox.prototype.getGeometry = function () {
+ return this.box_.getGeometry();
+ };
+ /**
+ * Handle pointer drag events.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Event.
+ */
+
+
+ DragBox.prototype.handleDragEvent = function (mapBrowserEvent) {
+ this.box_.setPixels(this.startPixel_, mapBrowserEvent.pixel);
+ this.dispatchEvent(new DragBoxEvent(DragBoxEventType.BOXDRAG, mapBrowserEvent.coordinate, mapBrowserEvent));
+ };
+ /**
+ * Handle pointer up events.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Event.
+ * @return {boolean} If the event was consumed.
+ */
+
+
+ DragBox.prototype.handleUpEvent = function (mapBrowserEvent) {
+ this.box_.setMap(null);
+
+ if (this.boxEndCondition_(mapBrowserEvent, this.startPixel_, mapBrowserEvent.pixel)) {
+ this.onBoxEnd(mapBrowserEvent);
+ this.dispatchEvent(new DragBoxEvent(DragBoxEventType.BOXEND, mapBrowserEvent.coordinate, mapBrowserEvent));
+ }
+
+ return false;
+ };
+ /**
+ * Handle pointer down events.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Event.
+ * @return {boolean} If the event was consumed.
+ */
+
+
+ DragBox.prototype.handleDownEvent = function (mapBrowserEvent) {
+ if (this.condition_(mapBrowserEvent)) {
+ this.startPixel_ = mapBrowserEvent.pixel;
+ this.box_.setMap(mapBrowserEvent.map);
+ this.box_.setPixels(this.startPixel_, this.startPixel_);
+ this.dispatchEvent(new DragBoxEvent(DragBoxEventType.BOXSTART, mapBrowserEvent.coordinate, mapBrowserEvent));
+ return true;
+ } else {
+ return false;
+ }
+ };
+ /**
+ * Function to execute just before `onboxend` is fired
+ * @param {import("../MapBrowserEvent.js").default} event Event.
+ */
+
+
+ DragBox.prototype.onBoxEnd = function (event) {};
+
+ return DragBox;
+}(_Pointer.default);
+
+var _default = DragBox;
+exports.default = _default;
+},{"../events/Event.js":"../../../node_modules/ol/events/Event.js","./Pointer.js":"../../../node_modules/ol/interaction/Pointer.js","../render/Box.js":"../../../node_modules/ol/render/Box.js","../events/condition.js":"../../../node_modules/ol/events/condition.js"}],"../../../node_modules/ol/interaction/DragZoom.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _DragBox = _interopRequireDefault(require("./DragBox.js"));
+
+var _extent = require("../extent.js");
+
+var _easing = require("../easing.js");
+
+var _condition = require("../events/condition.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/interaction/DragZoom
+ */
+
+
+/**
+ * @typedef {Object} Options
+ * @property {string} [className='ol-dragzoom'] CSS class name for styling the
+ * box.
+ * @property {import("../events/condition.js").Condition} [condition] A function that
+ * takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a
+ * boolean to indicate whether that event should be handled.
+ * Default is {@link module:ol/events/condition~shiftKeyOnly}.
+ * @property {number} [duration=200] Animation duration in milliseconds.
+ * @property {boolean} [out=false] Use interaction for zooming out.
+ * @property {number} [minArea=64] The minimum area of the box in pixel, this value is used by the parent default
+ * `boxEndCondition` function.
+ */
+
+/**
+ * @classdesc
+ * Allows the user to zoom the map by clicking and dragging on the map,
+ * normally combined with an {@link module:ol/events/condition} that limits
+ * it to when a key, shift by default, is held down.
+ *
+ * To change the style of the box, use CSS and the `.ol-dragzoom` selector, or
+ * your custom one configured with `className`.
+ * @api
+ */
+var DragZoom =
+/** @class */
+function (_super) {
+ __extends(DragZoom, _super);
+ /**
+ * @param {Options=} opt_options Options.
+ */
+
+
+ function DragZoom(opt_options) {
+ var _this = this;
+
+ var options = opt_options ? opt_options : {};
+ var condition = options.condition ? options.condition : _condition.shiftKeyOnly;
+ _this = _super.call(this, {
+ condition: condition,
+ className: options.className || 'ol-dragzoom',
+ minArea: options.minArea
+ }) || this;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.duration_ = options.duration !== undefined ? options.duration : 200;
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ _this.out_ = options.out !== undefined ? options.out : false;
+ return _this;
+ }
+ /**
+ * Function to execute just before `onboxend` is fired
+ * @param {import("../MapBrowserEvent.js").default} event Event.
+ */
+
+
+ DragZoom.prototype.onBoxEnd = function (event) {
+ var map = this.getMap();
+ var view =
+ /** @type {!import("../View.js").default} */
+ map.getView();
+ var size =
+ /** @type {!import("../size.js").Size} */
+ map.getSize();
+ var extent = this.getGeometry().getExtent();
+
+ if (this.out_) {
+ var mapExtent = view.calculateExtentInternal(size);
+ var boxPixelExtent = (0, _extent.createOrUpdateFromCoordinates)([map.getPixelFromCoordinateInternal((0, _extent.getBottomLeft)(extent)), map.getPixelFromCoordinateInternal((0, _extent.getTopRight)(extent))]);
+ var factor = view.getResolutionForExtentInternal(boxPixelExtent, size);
+ (0, _extent.scaleFromCenter)(mapExtent, 1 / factor);
+ extent = mapExtent;
+ }
+
+ var resolution = view.getConstrainedResolution(view.getResolutionForExtentInternal(extent, size));
+ var center = view.getConstrainedCenter((0, _extent.getCenter)(extent), resolution);
+ view.animateInternal({
+ resolution: resolution,
+ center: center,
+ duration: this.duration_,
+ easing: _easing.easeOut
+ });
+ };
+
+ return DragZoom;
+}(_DragBox.default);
+
+var _default = DragZoom;
+exports.default = _default;
+},{"./DragBox.js":"../../../node_modules/ol/interaction/DragBox.js","../extent.js":"../../../node_modules/ol/extent.js","../easing.js":"../../../node_modules/ol/easing.js","../events/condition.js":"../../../node_modules/ol/events/condition.js"}],"../../../node_modules/ol/events/KeyCode.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+/**
+ * @module ol/events/KeyCode
+ */
+
+/**
+ * @enum {number}
+ * @const
+ */
+var _default = {
+ LEFT: 37,
+ UP: 38,
+ RIGHT: 39,
+ DOWN: 40
+};
+exports.default = _default;
+},{}],"../../../node_modules/ol/interaction/KeyboardPan.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _EventType = _interopRequireDefault(require("../events/EventType.js"));
+
+var _Interaction = _interopRequireWildcard(require("./Interaction.js"));
+
+var _KeyCode = _interopRequireDefault(require("../events/KeyCode.js"));
+
+var _condition = require("../events/condition.js");
+
+var _coordinate = require("../coordinate.js");
+
+function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/interaction/KeyboardPan
+ */
+
+
+/**
+ * @typedef {Object} Options
+ * @property {import("../events/condition.js").Condition} [condition] A function that
+ * takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a
+ * boolean to indicate whether that event should be handled. Default is
+ * {@link module:ol/events/condition~noModifierKeys} and
+ * {@link module:ol/events/condition~targetNotEditable}.
+ * @property {number} [duration=100] Animation duration in milliseconds.
+ * @property {number} [pixelDelta=128] The amount of pixels to pan on each key
+ * press.
+ */
+
+/**
+ * @classdesc
+ * Allows the user to pan the map using keyboard arrows.
+ * Note that, although this interaction is by default included in maps,
+ * the keys can only be used when browser focus is on the element to which
+ * the keyboard events are attached. By default, this is the map div,
+ * though you can change this with the `keyboardEventTarget` in
+ * {@link module:ol/Map~Map}. `document` never loses focus but, for any other
+ * element, focus will have to be on, and returned to, this element if the keys
+ * are to function.
+ * See also {@link module:ol/interaction/KeyboardZoom~KeyboardZoom}.
+ * @api
+ */
+var KeyboardPan =
+/** @class */
+function (_super) {
+ __extends(KeyboardPan, _super);
+ /**
+ * @param {Options=} opt_options Options.
+ */
+
+
+ function KeyboardPan(opt_options) {
+ var _this = _super.call(this) || this;
+
+ var options = opt_options || {};
+ /**
+ * @private
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Browser event.
+ * @return {boolean} Combined condition result.
+ */
+
+ _this.defaultCondition_ = function (mapBrowserEvent) {
+ return (0, _condition.noModifierKeys)(mapBrowserEvent) && (0, _condition.targetNotEditable)(mapBrowserEvent);
+ };
+ /**
+ * @private
+ * @type {import("../events/condition.js").Condition}
+ */
+
+
+ _this.condition_ = options.condition !== undefined ? options.condition : _this.defaultCondition_;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.duration_ = options.duration !== undefined ? options.duration : 100;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.pixelDelta_ = options.pixelDelta !== undefined ? options.pixelDelta : 128;
+ return _this;
+ }
+ /**
+ * Handles the {@link module:ol/MapBrowserEvent map browser event} if it was a
+ * `KeyEvent`, and decides the direction to pan to (if an arrow key was
+ * pressed).
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Map browser event.
+ * @return {boolean} `false` to stop event propagation.
+ * @this {KeyboardPan}
+ */
+
+
+ KeyboardPan.prototype.handleEvent = function (mapBrowserEvent) {
+ var stopEvent = false;
+
+ if (mapBrowserEvent.type == _EventType.default.KEYDOWN) {
+ var keyEvent =
+ /** @type {KeyboardEvent} */
+ mapBrowserEvent.originalEvent;
+ var keyCode = keyEvent.keyCode;
+
+ if (this.condition_(mapBrowserEvent) && (keyCode == _KeyCode.default.DOWN || keyCode == _KeyCode.default.LEFT || keyCode == _KeyCode.default.RIGHT || keyCode == _KeyCode.default.UP)) {
+ var map = mapBrowserEvent.map;
+ var view = map.getView();
+ var mapUnitsDelta = view.getResolution() * this.pixelDelta_;
+ var deltaX = 0,
+ deltaY = 0;
+
+ if (keyCode == _KeyCode.default.DOWN) {
+ deltaY = -mapUnitsDelta;
+ } else if (keyCode == _KeyCode.default.LEFT) {
+ deltaX = -mapUnitsDelta;
+ } else if (keyCode == _KeyCode.default.RIGHT) {
+ deltaX = mapUnitsDelta;
+ } else {
+ deltaY = mapUnitsDelta;
+ }
+
+ var delta = [deltaX, deltaY];
+ (0, _coordinate.rotate)(delta, view.getRotation());
+ (0, _Interaction.pan)(view, delta, this.duration_);
+ mapBrowserEvent.preventDefault();
+ stopEvent = true;
+ }
+ }
+
+ return !stopEvent;
+ };
+
+ return KeyboardPan;
+}(_Interaction.default);
+
+var _default = KeyboardPan;
+exports.default = _default;
+},{"../events/EventType.js":"../../../node_modules/ol/events/EventType.js","./Interaction.js":"../../../node_modules/ol/interaction/Interaction.js","../events/KeyCode.js":"../../../node_modules/ol/events/KeyCode.js","../events/condition.js":"../../../node_modules/ol/events/condition.js","../coordinate.js":"../../../node_modules/ol/coordinate.js"}],"../../../node_modules/ol/interaction/KeyboardZoom.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _EventType = _interopRequireDefault(require("../events/EventType.js"));
+
+var _Interaction = _interopRequireWildcard(require("./Interaction.js"));
+
+var _condition = require("../events/condition.js");
+
+function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/interaction/KeyboardZoom
+ */
+
+
+/**
+ * @typedef {Object} Options
+ * @property {number} [duration=100] Animation duration in milliseconds.
+ * @property {import("../events/condition.js").Condition} [condition] A function that
+ * takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a
+ * boolean to indicate whether that event should be handled. Default is
+ * {@link module:ol/events/condition~targetNotEditable}.
+ * @property {number} [delta=1] The zoom level delta on each key press.
+ */
+
+/**
+ * @classdesc
+ * Allows the user to zoom the map using keyboard + and -.
+ * Note that, although this interaction is by default included in maps,
+ * the keys can only be used when browser focus is on the element to which
+ * the keyboard events are attached. By default, this is the map div,
+ * though you can change this with the `keyboardEventTarget` in
+ * {@link module:ol/Map~Map}. `document` never loses focus but, for any other
+ * element, focus will have to be on, and returned to, this element if the keys
+ * are to function.
+ * See also {@link module:ol/interaction/KeyboardPan~KeyboardPan}.
+ * @api
+ */
+var KeyboardZoom =
+/** @class */
+function (_super) {
+ __extends(KeyboardZoom, _super);
+ /**
+ * @param {Options=} opt_options Options.
+ */
+
+
+ function KeyboardZoom(opt_options) {
+ var _this = _super.call(this) || this;
+
+ var options = opt_options ? opt_options : {};
+ /**
+ * @private
+ * @type {import("../events/condition.js").Condition}
+ */
+
+ _this.condition_ = options.condition ? options.condition : _condition.targetNotEditable;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.delta_ = options.delta ? options.delta : 1;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.duration_ = options.duration !== undefined ? options.duration : 100;
+ return _this;
+ }
+ /**
+ * Handles the {@link module:ol/MapBrowserEvent map browser event} if it was a
+ * `KeyEvent`, and decides whether to zoom in or out (depending on whether the
+ * key pressed was '+' or '-').
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Map browser event.
+ * @return {boolean} `false` to stop event propagation.
+ * @this {KeyboardZoom}
+ */
+
+
+ KeyboardZoom.prototype.handleEvent = function (mapBrowserEvent) {
+ var stopEvent = false;
+
+ if (mapBrowserEvent.type == _EventType.default.KEYDOWN || mapBrowserEvent.type == _EventType.default.KEYPRESS) {
+ var keyEvent =
+ /** @type {KeyboardEvent} */
+ mapBrowserEvent.originalEvent;
+ var charCode = keyEvent.charCode;
+
+ if (this.condition_(mapBrowserEvent) && (charCode == '+'.charCodeAt(0) || charCode == '-'.charCodeAt(0))) {
+ var map = mapBrowserEvent.map;
+ var delta = charCode == '+'.charCodeAt(0) ? this.delta_ : -this.delta_;
+ var view = map.getView();
+ (0, _Interaction.zoomByDelta)(view, delta, undefined, this.duration_);
+ mapBrowserEvent.preventDefault();
+ stopEvent = true;
+ }
+ }
+
+ return !stopEvent;
+ };
+
+ return KeyboardZoom;
+}(_Interaction.default);
+
+var _default = KeyboardZoom;
+exports.default = _default;
+},{"../events/EventType.js":"../../../node_modules/ol/events/EventType.js","./Interaction.js":"../../../node_modules/ol/interaction/Interaction.js","../events/condition.js":"../../../node_modules/ol/events/condition.js"}],"../../../node_modules/ol/interaction/MouseWheelZoom.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = exports.Mode = void 0;
+
+var _EventType = _interopRequireDefault(require("../events/EventType.js"));
+
+var _Interaction = _interopRequireWildcard(require("./Interaction.js"));
+
+var _has = require("../has.js");
+
+var _condition = require("../events/condition.js");
+
+var _math = require("../math.js");
+
+function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/interaction/MouseWheelZoom
+ */
+
+
+/**
+ * @enum {string}
+ */
+var Mode = {
+ TRACKPAD: 'trackpad',
+ WHEEL: 'wheel'
+};
+/**
+ * @typedef {Object} Options
+ * @property {import("../events/condition.js").Condition} [condition] A function that
+ * takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a
+ * boolean to indicate whether that event should be handled. Default is
+ * {@link module:ol/events/condition~always}.
+ * @property {boolean} [onFocusOnly=false] When the map's target has a `tabindex` attribute set,
+ * the interaction will only handle events when the map has the focus.
+ * @property {number} [maxDelta=1] Maximum mouse wheel delta.
+ * @property {number} [duration=250] Animation duration in milliseconds.
+ * @property {number} [timeout=80] Mouse wheel timeout duration in milliseconds.
+ * @property {boolean} [useAnchor=true] Enable zooming using the mouse's
+ * location as the anchor. When set to `false`, zooming in and out will zoom to
+ * the center of the screen instead of zooming on the mouse's location.
+ * @property {boolean} [constrainResolution=false] If true, the mouse wheel zoom
+ * event will always animate to the closest zoom level after an interaction;
+ * false means intermediary zoom levels are allowed.
+ */
+
+/**
+ * @classdesc
+ * Allows the user to zoom the map by scrolling the mouse wheel.
+ * @api
+ */
+
+exports.Mode = Mode;
+
+var MouseWheelZoom =
+/** @class */
+function (_super) {
+ __extends(MouseWheelZoom, _super);
+ /**
+ * @param {Options=} opt_options Options.
+ */
+
+
+ function MouseWheelZoom(opt_options) {
+ var _this = this;
+
+ var options = opt_options ? opt_options : {};
+ _this = _super.call(this,
+ /** @type {import("./Interaction.js").InteractionOptions} */
+ options) || this;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.totalDelta_ = 0;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.lastDelta_ = 0;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.maxDelta_ = options.maxDelta !== undefined ? options.maxDelta : 1;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.duration_ = options.duration !== undefined ? options.duration : 250;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.timeout_ = options.timeout !== undefined ? options.timeout : 80;
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ _this.useAnchor_ = options.useAnchor !== undefined ? options.useAnchor : true;
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ _this.constrainResolution_ = options.constrainResolution !== undefined ? options.constrainResolution : false;
+ var condition = options.condition ? options.condition : _condition.always;
+ /**
+ * @private
+ * @type {import("../events/condition.js").Condition}
+ */
+
+ _this.condition_ = options.onFocusOnly ? (0, _condition.all)(_condition.focusWithTabindex, condition) : condition;
+ /**
+ * @private
+ * @type {?import("../coordinate.js").Coordinate}
+ */
+
+ _this.lastAnchor_ = null;
+ /**
+ * @private
+ * @type {number|undefined}
+ */
+
+ _this.startTime_ = undefined;
+ /**
+ * @private
+ * @type {?}
+ */
+
+ _this.timeoutId_;
+ /**
+ * @private
+ * @type {Mode|undefined}
+ */
+
+ _this.mode_ = undefined;
+ /**
+ * Trackpad events separated by this delay will be considered separate
+ * interactions.
+ * @type {number}
+ */
+
+ _this.trackpadEventGap_ = 400;
+ /**
+ * @type {?}
+ */
+
+ _this.trackpadTimeoutId_;
+ /**
+ * The number of delta values per zoom level
+ * @private
+ * @type {number}
+ */
+
+ _this.deltaPerZoom_ = 300;
+ return _this;
+ }
+ /**
+ * @private
+ */
+
+
+ MouseWheelZoom.prototype.endInteraction_ = function () {
+ this.trackpadTimeoutId_ = undefined;
+ var view = this.getMap().getView();
+ view.endInteraction(undefined, this.lastDelta_ ? this.lastDelta_ > 0 ? 1 : -1 : 0, this.lastAnchor_);
+ };
+ /**
+ * Handles the {@link module:ol/MapBrowserEvent map browser event} (if it was a mousewheel-event) and eventually
+ * zooms the map.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Map browser event.
+ * @return {boolean} `false` to stop event propagation.
+ */
+
+
+ MouseWheelZoom.prototype.handleEvent = function (mapBrowserEvent) {
+ if (!this.condition_(mapBrowserEvent)) {
+ return true;
+ }
+
+ var type = mapBrowserEvent.type;
+
+ if (type !== _EventType.default.WHEEL) {
+ return true;
+ }
+
+ mapBrowserEvent.preventDefault();
+ var map = mapBrowserEvent.map;
+ var wheelEvent =
+ /** @type {WheelEvent} */
+ mapBrowserEvent.originalEvent;
+
+ if (this.useAnchor_) {
+ this.lastAnchor_ = mapBrowserEvent.coordinate;
+ } // Delta normalisation inspired by
+ // https://github.com/mapbox/mapbox-gl-js/blob/001c7b9/js/ui/handler/scroll_zoom.js
+
+
+ var delta;
+
+ if (mapBrowserEvent.type == _EventType.default.WHEEL) {
+ delta = wheelEvent.deltaY;
+
+ if (_has.FIREFOX && wheelEvent.deltaMode === WheelEvent.DOM_DELTA_PIXEL) {
+ delta /= _has.DEVICE_PIXEL_RATIO;
+ }
+
+ if (wheelEvent.deltaMode === WheelEvent.DOM_DELTA_LINE) {
+ delta *= 40;
+ }
+ }
+
+ if (delta === 0) {
+ return false;
+ } else {
+ this.lastDelta_ = delta;
+ }
+
+ var now = Date.now();
+
+ if (this.startTime_ === undefined) {
+ this.startTime_ = now;
+ }
+
+ if (!this.mode_ || now - this.startTime_ > this.trackpadEventGap_) {
+ this.mode_ = Math.abs(delta) < 4 ? Mode.TRACKPAD : Mode.WHEEL;
+ }
+
+ var view = map.getView();
+
+ if (this.mode_ === Mode.TRACKPAD && !(view.getConstrainResolution() || this.constrainResolution_)) {
+ if (this.trackpadTimeoutId_) {
+ clearTimeout(this.trackpadTimeoutId_);
+ } else {
+ if (view.getAnimating()) {
+ view.cancelAnimations();
+ }
+
+ view.beginInteraction();
+ }
+
+ this.trackpadTimeoutId_ = setTimeout(this.endInteraction_.bind(this), this.timeout_);
+ view.adjustZoom(-delta / this.deltaPerZoom_, this.lastAnchor_);
+ this.startTime_ = now;
+ return false;
+ }
+
+ this.totalDelta_ += delta;
+ var timeLeft = Math.max(this.timeout_ - (now - this.startTime_), 0);
+ clearTimeout(this.timeoutId_);
+ this.timeoutId_ = setTimeout(this.handleWheelZoom_.bind(this, map), timeLeft);
+ return false;
+ };
+ /**
+ * @private
+ * @param {import("../PluggableMap.js").default} map Map.
+ */
+
+
+ MouseWheelZoom.prototype.handleWheelZoom_ = function (map) {
+ var view = map.getView();
+
+ if (view.getAnimating()) {
+ view.cancelAnimations();
+ }
+
+ var delta = -(0, _math.clamp)(this.totalDelta_, -this.maxDelta_ * this.deltaPerZoom_, this.maxDelta_ * this.deltaPerZoom_) / this.deltaPerZoom_;
+
+ if (view.getConstrainResolution() || this.constrainResolution_) {
+ // view has a zoom constraint, zoom by 1
+ delta = delta ? delta > 0 ? 1 : -1 : 0;
+ }
+
+ (0, _Interaction.zoomByDelta)(view, delta, this.lastAnchor_, this.duration_);
+ this.mode_ = undefined;
+ this.totalDelta_ = 0;
+ this.lastAnchor_ = null;
+ this.startTime_ = undefined;
+ this.timeoutId_ = undefined;
+ };
+ /**
+ * Enable or disable using the mouse's location as an anchor when zooming
+ * @param {boolean} useAnchor true to zoom to the mouse's location, false
+ * to zoom to the center of the map
+ * @api
+ */
+
+
+ MouseWheelZoom.prototype.setMouseAnchor = function (useAnchor) {
+ this.useAnchor_ = useAnchor;
+
+ if (!useAnchor) {
+ this.lastAnchor_ = null;
+ }
+ };
+
+ return MouseWheelZoom;
+}(_Interaction.default);
+
+var _default = MouseWheelZoom;
+exports.default = _default;
+},{"../events/EventType.js":"../../../node_modules/ol/events/EventType.js","./Interaction.js":"../../../node_modules/ol/interaction/Interaction.js","../has.js":"../../../node_modules/ol/has.js","../events/condition.js":"../../../node_modules/ol/events/condition.js","../math.js":"../../../node_modules/ol/math.js"}],"../../../node_modules/ol/interaction/PinchRotate.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Pointer = _interopRequireWildcard(require("./Pointer.js"));
+
+var _functions = require("../functions.js");
+
+var _rotationconstraint = require("../rotationconstraint.js");
+
+function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/interaction/PinchRotate
+ */
+
+
+/**
+ * @typedef {Object} Options
+ * @property {number} [duration=250] The duration of the animation in
+ * milliseconds.
+ * @property {number} [threshold=0.3] Minimal angle in radians to start a rotation.
+ */
+
+/**
+ * @classdesc
+ * Allows the user to rotate the map by twisting with two fingers
+ * on a touch screen.
+ * @api
+ */
+var PinchRotate =
+/** @class */
+function (_super) {
+ __extends(PinchRotate, _super);
+ /**
+ * @param {Options=} opt_options Options.
+ */
+
+
+ function PinchRotate(opt_options) {
+ var _this = this;
+
+ var options = opt_options ? opt_options : {};
+ var pointerOptions =
+ /** @type {import("./Pointer.js").Options} */
+ options;
+
+ if (!pointerOptions.stopDown) {
+ pointerOptions.stopDown = _functions.FALSE;
+ }
+
+ _this = _super.call(this, pointerOptions) || this;
+ /**
+ * @private
+ * @type {import("../coordinate.js").Coordinate}
+ */
+
+ _this.anchor_ = null;
+ /**
+ * @private
+ * @type {number|undefined}
+ */
+
+ _this.lastAngle_ = undefined;
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ _this.rotating_ = false;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.rotationDelta_ = 0.0;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.threshold_ = options.threshold !== undefined ? options.threshold : 0.3;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.duration_ = options.duration !== undefined ? options.duration : 250;
+ return _this;
+ }
+ /**
+ * Handle pointer drag events.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Event.
+ */
+
+
+ PinchRotate.prototype.handleDragEvent = function (mapBrowserEvent) {
+ var rotationDelta = 0.0;
+ var touch0 = this.targetPointers[0];
+ var touch1 = this.targetPointers[1]; // angle between touches
+
+ var angle = Math.atan2(touch1.clientY - touch0.clientY, touch1.clientX - touch0.clientX);
+
+ if (this.lastAngle_ !== undefined) {
+ var delta = angle - this.lastAngle_;
+ this.rotationDelta_ += delta;
+
+ if (!this.rotating_ && Math.abs(this.rotationDelta_) > this.threshold_) {
+ this.rotating_ = true;
+ }
+
+ rotationDelta = delta;
+ }
+
+ this.lastAngle_ = angle;
+ var map = mapBrowserEvent.map;
+ var view = map.getView();
+
+ if (view.getConstraints().rotation === _rotationconstraint.disable) {
+ return;
+ } // rotate anchor point.
+ // FIXME: should be the intersection point between the lines:
+ // touch0,touch1 and previousTouch0,previousTouch1
+
+
+ var viewportPosition = map.getViewport().getBoundingClientRect();
+ var centroid = (0, _Pointer.centroid)(this.targetPointers);
+ centroid[0] -= viewportPosition.left;
+ centroid[1] -= viewportPosition.top;
+ this.anchor_ = map.getCoordinateFromPixelInternal(centroid); // rotate
+
+ if (this.rotating_) {
+ map.render();
+ view.adjustRotationInternal(rotationDelta, this.anchor_);
+ }
+ };
+ /**
+ * Handle pointer up events.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Event.
+ * @return {boolean} If the event was consumed.
+ */
+
+
+ PinchRotate.prototype.handleUpEvent = function (mapBrowserEvent) {
+ if (this.targetPointers.length < 2) {
+ var map = mapBrowserEvent.map;
+ var view = map.getView();
+ view.endInteraction(this.duration_);
+ return false;
+ } else {
+ return true;
+ }
+ };
+ /**
+ * Handle pointer down events.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Event.
+ * @return {boolean} If the event was consumed.
+ */
+
+
+ PinchRotate.prototype.handleDownEvent = function (mapBrowserEvent) {
+ if (this.targetPointers.length >= 2) {
+ var map = mapBrowserEvent.map;
+ this.anchor_ = null;
+ this.lastAngle_ = undefined;
+ this.rotating_ = false;
+ this.rotationDelta_ = 0.0;
+
+ if (!this.handlingDownUpSequence) {
+ map.getView().beginInteraction();
+ }
+
+ return true;
+ } else {
+ return false;
+ }
+ };
+
+ return PinchRotate;
+}(_Pointer.default);
+
+var _default = PinchRotate;
+exports.default = _default;
+},{"./Pointer.js":"../../../node_modules/ol/interaction/Pointer.js","../functions.js":"../../../node_modules/ol/functions.js","../rotationconstraint.js":"../../../node_modules/ol/rotationconstraint.js"}],"../../../node_modules/ol/interaction/PinchZoom.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Pointer = _interopRequireWildcard(require("./Pointer.js"));
+
+var _functions = require("../functions.js");
+
+function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/interaction/PinchZoom
+ */
+
+
+/**
+ * @typedef {Object} Options
+ * @property {number} [duration=400] Animation duration in milliseconds.
+ */
+
+/**
+ * @classdesc
+ * Allows the user to zoom the map by pinching with two fingers
+ * on a touch screen.
+ * @api
+ */
+var PinchZoom =
+/** @class */
+function (_super) {
+ __extends(PinchZoom, _super);
+ /**
+ * @param {Options=} opt_options Options.
+ */
+
+
+ function PinchZoom(opt_options) {
+ var _this = this;
+
+ var options = opt_options ? opt_options : {};
+ var pointerOptions =
+ /** @type {import("./Pointer.js").Options} */
+ options;
+
+ if (!pointerOptions.stopDown) {
+ pointerOptions.stopDown = _functions.FALSE;
+ }
+
+ _this = _super.call(this, pointerOptions) || this;
+ /**
+ * @private
+ * @type {import("../coordinate.js").Coordinate}
+ */
+
+ _this.anchor_ = null;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.duration_ = options.duration !== undefined ? options.duration : 400;
+ /**
+ * @private
+ * @type {number|undefined}
+ */
+
+ _this.lastDistance_ = undefined;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.lastScaleDelta_ = 1;
+ return _this;
+ }
+ /**
+ * Handle pointer drag events.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Event.
+ */
+
+
+ PinchZoom.prototype.handleDragEvent = function (mapBrowserEvent) {
+ var scaleDelta = 1.0;
+ var touch0 = this.targetPointers[0];
+ var touch1 = this.targetPointers[1];
+ var dx = touch0.clientX - touch1.clientX;
+ var dy = touch0.clientY - touch1.clientY; // distance between touches
+
+ var distance = Math.sqrt(dx * dx + dy * dy);
+
+ if (this.lastDistance_ !== undefined) {
+ scaleDelta = this.lastDistance_ / distance;
+ }
+
+ this.lastDistance_ = distance;
+ var map = mapBrowserEvent.map;
+ var view = map.getView();
+
+ if (scaleDelta != 1.0) {
+ this.lastScaleDelta_ = scaleDelta;
+ } // scale anchor point.
+
+
+ var viewportPosition = map.getViewport().getBoundingClientRect();
+ var centroid = (0, _Pointer.centroid)(this.targetPointers);
+ centroid[0] -= viewportPosition.left;
+ centroid[1] -= viewportPosition.top;
+ this.anchor_ = map.getCoordinateFromPixelInternal(centroid); // scale, bypass the resolution constraint
+
+ map.render();
+ view.adjustResolutionInternal(scaleDelta, this.anchor_);
+ };
+ /**
+ * Handle pointer up events.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Event.
+ * @return {boolean} If the event was consumed.
+ */
+
+
+ PinchZoom.prototype.handleUpEvent = function (mapBrowserEvent) {
+ if (this.targetPointers.length < 2) {
+ var map = mapBrowserEvent.map;
+ var view = map.getView();
+ var direction = this.lastScaleDelta_ > 1 ? 1 : -1;
+ view.endInteraction(this.duration_, direction);
+ return false;
+ } else {
+ return true;
+ }
+ };
+ /**
+ * Handle pointer down events.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Event.
+ * @return {boolean} If the event was consumed.
+ */
+
+
+ PinchZoom.prototype.handleDownEvent = function (mapBrowserEvent) {
+ if (this.targetPointers.length >= 2) {
+ var map = mapBrowserEvent.map;
+ this.anchor_ = null;
+ this.lastDistance_ = undefined;
+ this.lastScaleDelta_ = 1;
+
+ if (!this.handlingDownUpSequence) {
+ map.getView().beginInteraction();
+ }
+
+ return true;
+ } else {
+ return false;
+ }
+ };
+
+ return PinchZoom;
+}(_Pointer.default);
+
+var _default = PinchZoom;
+exports.default = _default;
+},{"./Pointer.js":"../../../node_modules/ol/interaction/Pointer.js","../functions.js":"../../../node_modules/ol/functions.js"}],"../../../node_modules/ol/interaction/DragAndDrop.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Event = _interopRequireDefault(require("../events/Event.js"));
+
+var _EventType = _interopRequireDefault(require("../events/EventType.js"));
+
+var _Interaction = _interopRequireDefault(require("./Interaction.js"));
+
+var _functions = require("../functions.js");
+
+var _proj = require("../proj.js");
+
+var _events = require("../events.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module ol/interaction/DragAndDrop
+ */
+// FIXME should handle all geo-referenced data, not just vector data
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+
+/**
+ * @typedef {Object} Options
+ * @property {Array<typeof import("../format/Feature.js").default>} [formatConstructors] Format constructors.
+ * @property {import("../source/Vector.js").default} [source] Optional vector source where features will be added. If a source is provided
+ * all existing features will be removed and new features will be added when
+ * they are dropped on the target. If you want to add features to a vector
+ * source without removing the existing features (append only), instead of
+ * providing the source option listen for the "addfeatures" event.
+ * @property {import("../proj.js").ProjectionLike} [projection] Target projection. By default, the map's view's projection is used.
+ * @property {HTMLElement} [target] The element that is used as the drop target, default is the viewport element.
+ */
+
+/**
+ * @enum {string}
+ */
+var DragAndDropEventType = {
+ /**
+ * Triggered when features are added
+ * @event DragAndDropEvent#addfeatures
+ * @api
+ */
+ ADD_FEATURES: 'addfeatures'
+};
+/**
+ * @classdesc
+ * Events emitted by {@link module:ol/interaction/DragAndDrop~DragAndDrop} instances are instances
+ * of this type.
+ */
+
+var DragAndDropEvent =
+/** @class */
+function (_super) {
+ __extends(DragAndDropEvent, _super);
+ /**
+ * @param {DragAndDropEventType} type Type.
+ * @param {File} file File.
+ * @param {Array<import("../Feature.js").default>=} opt_features Features.
+ * @param {import("../proj/Projection.js").default=} opt_projection Projection.
+ */
+
+
+ function DragAndDropEvent(type, file, opt_features, opt_projection) {
+ var _this = _super.call(this, type) || this;
+ /**
+ * The features parsed from dropped data.
+ * @type {Array<import("../Feature.js").FeatureLike>|undefined}
+ * @api
+ */
+
+
+ _this.features = opt_features;
+ /**
+ * The dropped file.
+ * @type {File}
+ * @api
+ */
+
+ _this.file = file;
+ /**
+ * The feature projection.
+ * @type {import("../proj/Projection.js").default|undefined}
+ * @api
+ */
+
+ _this.projection = opt_projection;
+ return _this;
+ }
+
+ return DragAndDropEvent;
+}(_Event.default);
+/**
+ * @classdesc
+ * Handles input of vector data by drag and drop.
+ * @api
+ *
+ * @fires DragAndDropEvent
+ */
+
+
+var DragAndDrop =
+/** @class */
+function (_super) {
+ __extends(DragAndDrop, _super);
+ /**
+ * @param {Options=} opt_options Options.
+ */
+
+
+ function DragAndDrop(opt_options) {
+ var _this = this;
+
+ var options = opt_options ? opt_options : {};
+ _this = _super.call(this, {
+ handleEvent: _functions.TRUE
+ }) || this;
+ /**
+ * @private
+ * @type {Array<typeof import("../format/Feature.js").default>}
+ */
+
+ _this.formatConstructors_ = options.formatConstructors ? options.formatConstructors : [];
+ /**
+ * @private
+ * @type {import("../proj/Projection.js").default}
+ */
+
+ _this.projection_ = options.projection ? (0, _proj.get)(options.projection) : null;
+ /**
+ * @private
+ * @type {?Array<import("../events.js").EventsKey>}
+ */
+
+ _this.dropListenKeys_ = null;
+ /**
+ * @private
+ * @type {import("../source/Vector.js").default}
+ */
+
+ _this.source_ = options.source || null;
+ /**
+ * @private
+ * @type {HTMLElement}
+ */
+
+ _this.target = options.target ? options.target : null;
+ return _this;
+ }
+ /**
+ * @param {File} file File.
+ * @param {Event} event Load event.
+ * @private
+ */
+
+
+ DragAndDrop.prototype.handleResult_ = function (file, event) {
+ var result = event.target.result;
+ var map = this.getMap();
+ var projection = this.projection_;
+
+ if (!projection) {
+ var view = map.getView();
+ projection = view.getProjection();
+ }
+
+ var formatConstructors = this.formatConstructors_;
+
+ for (var i = 0, ii = formatConstructors.length; i < ii; ++i) {
+ var format = new formatConstructors[i]();
+ var features = this.tryReadFeatures_(format, result, {
+ featureProjection: projection
+ });
+
+ if (features && features.length > 0) {
+ if (this.source_) {
+ this.source_.clear();
+ this.source_.addFeatures(features);
+ }
+
+ this.dispatchEvent(new DragAndDropEvent(DragAndDropEventType.ADD_FEATURES, file, features, projection));
+ break;
+ }
+ }
+ };
+ /**
+ * @private
+ */
+
+
+ DragAndDrop.prototype.registerListeners_ = function () {
+ var map = this.getMap();
+
+ if (map) {
+ var dropArea = this.target ? this.target : map.getViewport();
+ this.dropListenKeys_ = [(0, _events.listen)(dropArea, _EventType.default.DROP, this.handleDrop, this), (0, _events.listen)(dropArea, _EventType.default.DRAGENTER, this.handleStop, this), (0, _events.listen)(dropArea, _EventType.default.DRAGOVER, this.handleStop, this), (0, _events.listen)(dropArea, _EventType.default.DROP, this.handleStop, this)];
+ }
+ };
+ /**
+ * Activate or deactivate the interaction.
+ * @param {boolean} active Active.
+ * @observable
+ * @api
+ */
+
+
+ DragAndDrop.prototype.setActive = function (active) {
+ if (!this.getActive() && active) {
+ this.registerListeners_();
+ }
+
+ if (this.getActive() && !active) {
+ this.unregisterListeners_();
+ }
+
+ _super.prototype.setActive.call(this, active);
+ };
+ /**
+ * Remove the interaction from its current map and attach it to the new map.
+ * Subclasses may set up event handlers to get notified about changes to
+ * the map here.
+ * @param {import("../PluggableMap.js").default} map Map.
+ */
+
+
+ DragAndDrop.prototype.setMap = function (map) {
+ this.unregisterListeners_();
+
+ _super.prototype.setMap.call(this, map);
+
+ if (this.getActive()) {
+ this.registerListeners_();
+ }
+ };
+ /**
+ * @param {import("../format/Feature.js").default} format Format.
+ * @param {string} text Text.
+ * @param {import("../format/Feature.js").ReadOptions} options Read options.
+ * @private
+ * @return {Array<import("../Feature.js").default>} Features.
+ */
+
+
+ DragAndDrop.prototype.tryReadFeatures_ = function (format, text, options) {
+ try {
+ return (
+ /** @type {Array<import("../Feature.js").default>} */
+ format.readFeatures(text, options)
+ );
+ } catch (e) {
+ return null;
+ }
+ };
+ /**
+ * @private
+ */
+
+
+ DragAndDrop.prototype.unregisterListeners_ = function () {
+ if (this.dropListenKeys_) {
+ this.dropListenKeys_.forEach(_events.unlistenByKey);
+ this.dropListenKeys_ = null;
+ }
+ };
+ /**
+ * @param {DragEvent} event Event.
+ */
+
+
+ DragAndDrop.prototype.handleDrop = function (event) {
+ var files = event.dataTransfer.files;
+
+ for (var i = 0, ii = files.length; i < ii; ++i) {
+ var file = files.item(i);
+ var reader = new FileReader();
+ reader.addEventListener(_EventType.default.LOAD, this.handleResult_.bind(this, file));
+ reader.readAsText(file);
+ }
+ };
+ /**
+ * @param {DragEvent} event Event.
+ */
+
+
+ DragAndDrop.prototype.handleStop = function (event) {
+ event.stopPropagation();
+ event.preventDefault();
+ event.dataTransfer.dropEffect = 'copy';
+ };
+
+ return DragAndDrop;
+}(_Interaction.default);
+
+var _default = DragAndDrop;
+exports.default = _default;
+},{"../events/Event.js":"../../../node_modules/ol/events/Event.js","../events/EventType.js":"../../../node_modules/ol/events/EventType.js","./Interaction.js":"../../../node_modules/ol/interaction/Interaction.js","../functions.js":"../../../node_modules/ol/functions.js","../proj.js":"../../../node_modules/ol/proj.js","../events.js":"../../../node_modules/ol/events.js"}],"../../../node_modules/ol/interaction/DragRotateAndZoom.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Pointer = _interopRequireDefault(require("./Pointer.js"));
+
+var _condition = require("../events/condition.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/interaction/DragRotateAndZoom
+ */
+
+
+/**
+ * @typedef {Object} Options
+ * @property {import("../events/condition.js").Condition} [condition] A function that
+ * takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a
+ * boolean to indicate whether that event should be handled.
+ * Default is {@link module:ol/events/condition~shiftKeyOnly}.
+ * @property {number} [duration=400] Animation duration in milliseconds.
+ */
+
+/**
+ * @classdesc
+ * Allows the user to zoom and rotate the map by clicking and dragging
+ * on the map. By default, this interaction is limited to when the shift
+ * key is held down.
+ *
+ * This interaction is only supported for mouse devices.
+ *
+ * And this interaction is not included in the default interactions.
+ * @api
+ */
+var DragRotateAndZoom =
+/** @class */
+function (_super) {
+ __extends(DragRotateAndZoom, _super);
+ /**
+ * @param {Options=} opt_options Options.
+ */
+
+
+ function DragRotateAndZoom(opt_options) {
+ var _this = this;
+
+ var options = opt_options ? opt_options : {};
+ _this = _super.call(this,
+ /** @type {import("./Pointer.js").Options} */
+ options) || this;
+ /**
+ * @private
+ * @type {import("../events/condition.js").Condition}
+ */
+
+ _this.condition_ = options.condition ? options.condition : _condition.shiftKeyOnly;
+ /**
+ * @private
+ * @type {number|undefined}
+ */
+
+ _this.lastAngle_ = undefined;
+ /**
+ * @private
+ * @type {number|undefined}
+ */
+
+ _this.lastMagnitude_ = undefined;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.lastScaleDelta_ = 0;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.duration_ = options.duration !== undefined ? options.duration : 400;
+ return _this;
+ }
+ /**
+ * Handle pointer drag events.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Event.
+ */
+
+
+ DragRotateAndZoom.prototype.handleDragEvent = function (mapBrowserEvent) {
+ if (!(0, _condition.mouseOnly)(mapBrowserEvent)) {
+ return;
+ }
+
+ var map = mapBrowserEvent.map;
+ var size = map.getSize();
+ var offset = mapBrowserEvent.pixel;
+ var deltaX = offset[0] - size[0] / 2;
+ var deltaY = size[1] / 2 - offset[1];
+ var theta = Math.atan2(deltaY, deltaX);
+ var magnitude = Math.sqrt(deltaX * deltaX + deltaY * deltaY);
+ var view = map.getView();
+
+ if (this.lastAngle_ !== undefined) {
+ var angleDelta = this.lastAngle_ - theta;
+ view.adjustRotationInternal(angleDelta);
+ }
+
+ this.lastAngle_ = theta;
+
+ if (this.lastMagnitude_ !== undefined) {
+ view.adjustResolutionInternal(this.lastMagnitude_ / magnitude);
+ }
+
+ if (this.lastMagnitude_ !== undefined) {
+ this.lastScaleDelta_ = this.lastMagnitude_ / magnitude;
+ }
+
+ this.lastMagnitude_ = magnitude;
+ };
+ /**
+ * Handle pointer up events.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Event.
+ * @return {boolean} If the event was consumed.
+ */
+
+
+ DragRotateAndZoom.prototype.handleUpEvent = function (mapBrowserEvent) {
+ if (!(0, _condition.mouseOnly)(mapBrowserEvent)) {
+ return true;
+ }
+
+ var map = mapBrowserEvent.map;
+ var view = map.getView();
+ var direction = this.lastScaleDelta_ > 1 ? 1 : -1;
+ view.endInteraction(this.duration_, direction);
+ this.lastScaleDelta_ = 0;
+ return false;
+ };
+ /**
+ * Handle pointer down events.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Event.
+ * @return {boolean} If the event was consumed.
+ */
+
+
+ DragRotateAndZoom.prototype.handleDownEvent = function (mapBrowserEvent) {
+ if (!(0, _condition.mouseOnly)(mapBrowserEvent)) {
+ return false;
+ }
+
+ if (this.condition_(mapBrowserEvent)) {
+ mapBrowserEvent.map.getView().beginInteraction();
+ this.lastAngle_ = undefined;
+ this.lastMagnitude_ = undefined;
+ return true;
+ } else {
+ return false;
+ }
+ };
+
+ return DragRotateAndZoom;
+}(_Pointer.default);
+
+var _default = DragRotateAndZoom;
+exports.default = _default;
+},{"./Pointer.js":"../../../node_modules/ol/interaction/Pointer.js","../events/condition.js":"../../../node_modules/ol/events/condition.js"}],"../../../node_modules/ol/geom/Circle.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _GeometryType = _interopRequireDefault(require("./GeometryType.js"));
+
+var _SimpleGeometry = _interopRequireDefault(require("./SimpleGeometry.js"));
+
+var _extent = require("../extent.js");
+
+var _deflate = require("./flat/deflate.js");
+
+var _transform = require("./flat/transform.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/geom/Circle
+ */
+
+
+/**
+ * @classdesc
+ * Circle geometry.
+ *
+ * @api
+ */
+var Circle =
+/** @class */
+function (_super) {
+ __extends(Circle, _super);
+ /**
+ * @param {!import("../coordinate.js").Coordinate} center Center.
+ * For internal use, flat coordinates in combination with `opt_layout` and no
+ * `opt_radius` are also accepted.
+ * @param {number=} opt_radius Radius.
+ * @param {import("./GeometryLayout.js").default=} opt_layout Layout.
+ */
+
+
+ function Circle(center, opt_radius, opt_layout) {
+ var _this = _super.call(this) || this;
+
+ if (opt_layout !== undefined && opt_radius === undefined) {
+ _this.setFlatCoordinates(opt_layout, center);
+ } else {
+ var radius = opt_radius ? opt_radius : 0;
+
+ _this.setCenterAndRadius(center, radius, opt_layout);
+ }
+
+ return _this;
+ }
+ /**
+ * Make a complete copy of the geometry.
+ * @return {!Circle} Clone.
+ * @api
+ */
+
+
+ Circle.prototype.clone = function () {
+ return new Circle(this.flatCoordinates.slice(), undefined, this.layout);
+ };
+ /**
+ * @param {number} x X.
+ * @param {number} y Y.
+ * @param {import("../coordinate.js").Coordinate} closestPoint Closest point.
+ * @param {number} minSquaredDistance Minimum squared distance.
+ * @return {number} Minimum squared distance.
+ */
+
+
+ Circle.prototype.closestPointXY = function (x, y, closestPoint, minSquaredDistance) {
+ var flatCoordinates = this.flatCoordinates;
+ var dx = x - flatCoordinates[0];
+ var dy = y - flatCoordinates[1];
+ var squaredDistance = dx * dx + dy * dy;
+
+ if (squaredDistance < minSquaredDistance) {
+ if (squaredDistance === 0) {
+ for (var i = 0; i < this.stride; ++i) {
+ closestPoint[i] = flatCoordinates[i];
+ }
+ } else {
+ var delta = this.getRadius() / Math.sqrt(squaredDistance);
+ closestPoint[0] = flatCoordinates[0] + delta * dx;
+ closestPoint[1] = flatCoordinates[1] + delta * dy;
+
+ for (var i = 2; i < this.stride; ++i) {
+ closestPoint[i] = flatCoordinates[i];
+ }
+ }
+
+ closestPoint.length = this.stride;
+ return squaredDistance;
+ } else {
+ return minSquaredDistance;
+ }
+ };
+ /**
+ * @param {number} x X.
+ * @param {number} y Y.
+ * @return {boolean} Contains (x, y).
+ */
+
+
+ Circle.prototype.containsXY = function (x, y) {
+ var flatCoordinates = this.flatCoordinates;
+ var dx = x - flatCoordinates[0];
+ var dy = y - flatCoordinates[1];
+ return dx * dx + dy * dy <= this.getRadiusSquared_();
+ };
+ /**
+ * Return the center of the circle as {@link module:ol/coordinate~Coordinate coordinate}.
+ * @return {import("../coordinate.js").Coordinate} Center.
+ * @api
+ */
+
+
+ Circle.prototype.getCenter = function () {
+ return this.flatCoordinates.slice(0, this.stride);
+ };
+ /**
+ * @param {import("../extent.js").Extent} extent Extent.
+ * @protected
+ * @return {import("../extent.js").Extent} extent Extent.
+ */
+
+
+ Circle.prototype.computeExtent = function (extent) {
+ var flatCoordinates = this.flatCoordinates;
+ var radius = flatCoordinates[this.stride] - flatCoordinates[0];
+ return (0, _extent.createOrUpdate)(flatCoordinates[0] - radius, flatCoordinates[1] - radius, flatCoordinates[0] + radius, flatCoordinates[1] + radius, extent);
+ };
+ /**
+ * Return the radius of the circle.
+ * @return {number} Radius.
+ * @api
+ */
+
+
+ Circle.prototype.getRadius = function () {
+ return Math.sqrt(this.getRadiusSquared_());
+ };
+ /**
+ * @private
+ * @return {number} Radius squared.
+ */
+
+
+ Circle.prototype.getRadiusSquared_ = function () {
+ var dx = this.flatCoordinates[this.stride] - this.flatCoordinates[0];
+ var dy = this.flatCoordinates[this.stride + 1] - this.flatCoordinates[1];
+ return dx * dx + dy * dy;
+ };
+ /**
+ * Get the type of this geometry.
+ * @return {import("./GeometryType.js").default} Geometry type.
+ * @api
+ */
+
+
+ Circle.prototype.getType = function () {
+ return _GeometryType.default.CIRCLE;
+ };
+ /**
+ * Test if the geometry and the passed extent intersect.
+ * @param {import("../extent.js").Extent} extent Extent.
+ * @return {boolean} `true` if the geometry and the extent intersect.
+ * @api
+ */
+
+
+ Circle.prototype.intersectsExtent = function (extent) {
+ var circleExtent = this.getExtent();
+
+ if ((0, _extent.intersects)(extent, circleExtent)) {
+ var center = this.getCenter();
+
+ if (extent[0] <= center[0] && extent[2] >= center[0]) {
+ return true;
+ }
+
+ if (extent[1] <= center[1] && extent[3] >= center[1]) {
+ return true;
+ }
+
+ return (0, _extent.forEachCorner)(extent, this.intersectsCoordinate.bind(this));
+ }
+
+ return false;
+ };
+ /**
+ * Set the center of the circle as {@link module:ol/coordinate~Coordinate coordinate}.
+ * @param {import("../coordinate.js").Coordinate} center Center.
+ * @api
+ */
+
+
+ Circle.prototype.setCenter = function (center) {
+ var stride = this.stride;
+ var radius = this.flatCoordinates[stride] - this.flatCoordinates[0];
+ var flatCoordinates = center.slice();
+ flatCoordinates[stride] = flatCoordinates[0] + radius;
+
+ for (var i = 1; i < stride; ++i) {
+ flatCoordinates[stride + i] = center[i];
+ }
+
+ this.setFlatCoordinates(this.layout, flatCoordinates);
+ this.changed();
+ };
+ /**
+ * Set the center (as {@link module:ol/coordinate~Coordinate coordinate}) and the radius (as
+ * number) of the circle.
+ * @param {!import("../coordinate.js").Coordinate} center Center.
+ * @param {number} radius Radius.
+ * @param {import("./GeometryLayout.js").default=} opt_layout Layout.
+ * @api
+ */
+
+
+ Circle.prototype.setCenterAndRadius = function (center, radius, opt_layout) {
+ this.setLayout(opt_layout, center, 0);
+
+ if (!this.flatCoordinates) {
+ this.flatCoordinates = [];
+ }
+ /** @type {Array<number>} */
+
+
+ var flatCoordinates = this.flatCoordinates;
+ var offset = (0, _deflate.deflateCoordinate)(flatCoordinates, 0, center, this.stride);
+ flatCoordinates[offset++] = flatCoordinates[0] + radius;
+
+ for (var i = 1, ii = this.stride; i < ii; ++i) {
+ flatCoordinates[offset++] = flatCoordinates[i];
+ }
+
+ flatCoordinates.length = offset;
+ this.changed();
+ };
+
+ Circle.prototype.getCoordinates = function () {
+ return null;
+ };
+
+ Circle.prototype.setCoordinates = function (coordinates, opt_layout) {};
+ /**
+ * Set the radius of the circle. The radius is in the units of the projection.
+ * @param {number} radius Radius.
+ * @api
+ */
+
+
+ Circle.prototype.setRadius = function (radius) {
+ this.flatCoordinates[this.stride] = this.flatCoordinates[0] + radius;
+ this.changed();
+ };
+ /**
+ * Rotate the geometry around a given coordinate. This modifies the geometry
+ * coordinates in place.
+ * @param {number} angle Rotation angle in radians.
+ * @param {import("../coordinate.js").Coordinate} anchor The rotation center.
+ * @api
+ */
+
+
+ Circle.prototype.rotate = function (angle, anchor) {
+ var center = this.getCenter();
+ var stride = this.getStride();
+ this.setCenter((0, _transform.rotate)(center, 0, center.length, stride, angle, anchor, center));
+ this.changed();
+ };
+ /**
+ * Translate the geometry. This modifies the geometry coordinates in place. If
+ * instead you want a new geometry, first `clone()` this geometry.
+ * @param {number} deltaX Delta X.
+ * @param {number} deltaY Delta Y.
+ * @api
+ */
+
+
+ Circle.prototype.translate = function (deltaX, deltaY) {
+ var center = this.getCenter();
+ var stride = this.getStride();
+ this.setCenter((0, _transform.translate)(center, 0, center.length, stride, deltaX, deltaY, center));
+ this.changed();
+ };
+
+ return Circle;
+}(_SimpleGeometry.default);
+/**
+ * Transform each coordinate of the circle from one coordinate reference system
+ * to another. The geometry is modified in place.
+ * If you do not want the geometry modified in place, first clone() it and
+ * then use this function on the clone.
+ *
+ * Internally a circle is currently represented by two points: the center of
+ * the circle `[cx, cy]`, and the point to the right of the circle
+ * `[cx + r, cy]`. This `transform` function just transforms these two points.
+ * So the resulting geometry is also a circle, and that circle does not
+ * correspond to the shape that would be obtained by transforming every point
+ * of the original circle.
+ *
+ * @param {import("../proj.js").ProjectionLike} source The current projection. Can be a
+ * string identifier or a {@link module:ol/proj/Projection~Projection} object.
+ * @param {import("../proj.js").ProjectionLike} destination The desired projection. Can be a
+ * string identifier or a {@link module:ol/proj/Projection~Projection} object.
+ * @return {Circle} This geometry. Note that original geometry is
+ * modified in place.
+ * @function
+ * @api
+ */
+
+
+Circle.prototype.transform;
+var _default = Circle;
+exports.default = _default;
+},{"./GeometryType.js":"../../../node_modules/ol/geom/GeometryType.js","./SimpleGeometry.js":"../../../node_modules/ol/geom/SimpleGeometry.js","../extent.js":"../../../node_modules/ol/extent.js","./flat/deflate.js":"../../../node_modules/ol/geom/flat/deflate.js","./flat/transform.js":"../../../node_modules/ol/geom/flat/transform.js"}],"../../../node_modules/ol/geom/MultiLineString.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _GeometryLayout = _interopRequireDefault(require("./GeometryLayout.js"));
+
+var _GeometryType = _interopRequireDefault(require("./GeometryType.js"));
+
+var _LineString = _interopRequireDefault(require("./LineString.js"));
+
+var _SimpleGeometry = _interopRequireDefault(require("./SimpleGeometry.js"));
+
+var _closest = require("./flat/closest.js");
+
+var _extent = require("../extent.js");
+
+var _deflate = require("./flat/deflate.js");
+
+var _simplify = require("./flat/simplify.js");
+
+var _array = require("../array.js");
+
+var _inflate = require("./flat/inflate.js");
+
+var _interpolate = require("./flat/interpolate.js");
+
+var _intersectsextent = require("./flat/intersectsextent.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/geom/MultiLineString
+ */
+
+
+/**
+ * @classdesc
+ * Multi-linestring geometry.
+ *
+ * @api
+ */
+var MultiLineString =
+/** @class */
+function (_super) {
+ __extends(MultiLineString, _super);
+ /**
+ * @param {Array<Array<import("../coordinate.js").Coordinate>|LineString>|Array<number>} coordinates
+ * Coordinates or LineString geometries. (For internal use, flat coordinates in
+ * combination with `opt_layout` and `opt_ends` are also accepted.)
+ * @param {import("./GeometryLayout.js").default=} opt_layout Layout.
+ * @param {Array<number>=} opt_ends Flat coordinate ends for internal use.
+ */
+
+
+ function MultiLineString(coordinates, opt_layout, opt_ends) {
+ var _this = _super.call(this) || this;
+ /**
+ * @type {Array<number>}
+ * @private
+ */
+
+
+ _this.ends_ = [];
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.maxDelta_ = -1;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.maxDeltaRevision_ = -1;
+
+ if (Array.isArray(coordinates[0])) {
+ _this.setCoordinates(
+ /** @type {Array<Array<import("../coordinate.js").Coordinate>>} */
+ coordinates, opt_layout);
+ } else if (opt_layout !== undefined && opt_ends) {
+ _this.setFlatCoordinates(opt_layout,
+ /** @type {Array<number>} */
+ coordinates);
+
+ _this.ends_ = opt_ends;
+ } else {
+ var layout = _this.getLayout();
+
+ var lineStrings =
+ /** @type {Array<LineString>} */
+ coordinates;
+ var flatCoordinates = [];
+ var ends = [];
+
+ for (var i = 0, ii = lineStrings.length; i < ii; ++i) {
+ var lineString = lineStrings[i];
+
+ if (i === 0) {
+ layout = lineString.getLayout();
+ }
+
+ (0, _array.extend)(flatCoordinates, lineString.getFlatCoordinates());
+ ends.push(flatCoordinates.length);
+ }
+
+ _this.setFlatCoordinates(layout, flatCoordinates);
+
+ _this.ends_ = ends;
+ }
+
+ return _this;
+ }
+ /**
+ * Append the passed linestring to the multilinestring.
+ * @param {LineString} lineString LineString.
+ * @api
+ */
+
+
+ MultiLineString.prototype.appendLineString = function (lineString) {
+ if (!this.flatCoordinates) {
+ this.flatCoordinates = lineString.getFlatCoordinates().slice();
+ } else {
+ (0, _array.extend)(this.flatCoordinates, lineString.getFlatCoordinates().slice());
+ }
+
+ this.ends_.push(this.flatCoordinates.length);
+ this.changed();
+ };
+ /**
+ * Make a complete copy of the geometry.
+ * @return {!MultiLineString} Clone.
+ * @api
+ */
+
+
+ MultiLineString.prototype.clone = function () {
+ return new MultiLineString(this.flatCoordinates.slice(), this.layout, this.ends_.slice());
+ };
+ /**
+ * @param {number} x X.
+ * @param {number} y Y.
+ * @param {import("../coordinate.js").Coordinate} closestPoint Closest point.
+ * @param {number} minSquaredDistance Minimum squared distance.
+ * @return {number} Minimum squared distance.
+ */
+
+
+ MultiLineString.prototype.closestPointXY = function (x, y, closestPoint, minSquaredDistance) {
+ if (minSquaredDistance < (0, _extent.closestSquaredDistanceXY)(this.getExtent(), x, y)) {
+ return minSquaredDistance;
+ }
+
+ if (this.maxDeltaRevision_ != this.getRevision()) {
+ this.maxDelta_ = Math.sqrt((0, _closest.arrayMaxSquaredDelta)(this.flatCoordinates, 0, this.ends_, this.stride, 0));
+ this.maxDeltaRevision_ = this.getRevision();
+ }
+
+ return (0, _closest.assignClosestArrayPoint)(this.flatCoordinates, 0, this.ends_, this.stride, this.maxDelta_, false, x, y, closestPoint, minSquaredDistance);
+ };
+ /**
+ * Returns the coordinate at `m` using linear interpolation, or `null` if no
+ * such coordinate exists.
+ *
+ * `opt_extrapolate` controls extrapolation beyond the range of Ms in the
+ * MultiLineString. If `opt_extrapolate` is `true` then Ms less than the first
+ * M will return the first coordinate and Ms greater than the last M will
+ * return the last coordinate.
+ *
+ * `opt_interpolate` controls interpolation between consecutive LineStrings
+ * within the MultiLineString. If `opt_interpolate` is `true` the coordinates
+ * will be linearly interpolated between the last coordinate of one LineString
+ * and the first coordinate of the next LineString. If `opt_interpolate` is
+ * `false` then the function will return `null` for Ms falling between
+ * LineStrings.
+ *
+ * @param {number} m M.
+ * @param {boolean=} opt_extrapolate Extrapolate. Default is `false`.
+ * @param {boolean=} opt_interpolate Interpolate. Default is `false`.
+ * @return {import("../coordinate.js").Coordinate} Coordinate.
+ * @api
+ */
+
+
+ MultiLineString.prototype.getCoordinateAtM = function (m, opt_extrapolate, opt_interpolate) {
+ if (this.layout != _GeometryLayout.default.XYM && this.layout != _GeometryLayout.default.XYZM || this.flatCoordinates.length === 0) {
+ return null;
+ }
+
+ var extrapolate = opt_extrapolate !== undefined ? opt_extrapolate : false;
+ var interpolate = opt_interpolate !== undefined ? opt_interpolate : false;
+ return (0, _interpolate.lineStringsCoordinateAtM)(this.flatCoordinates, 0, this.ends_, this.stride, m, extrapolate, interpolate);
+ };
+ /**
+ * Return the coordinates of the multilinestring.
+ * @return {Array<Array<import("../coordinate.js").Coordinate>>} Coordinates.
+ * @api
+ */
+
+
+ MultiLineString.prototype.getCoordinates = function () {
+ return (0, _inflate.inflateCoordinatesArray)(this.flatCoordinates, 0, this.ends_, this.stride);
+ };
+ /**
+ * @return {Array<number>} Ends.
+ */
+
+
+ MultiLineString.prototype.getEnds = function () {
+ return this.ends_;
+ };
+ /**
+ * Return the linestring at the specified index.
+ * @param {number} index Index.
+ * @return {LineString} LineString.
+ * @api
+ */
+
+
+ MultiLineString.prototype.getLineString = function (index) {
+ if (index < 0 || this.ends_.length <= index) {
+ return null;
+ }
+
+ return new _LineString.default(this.flatCoordinates.slice(index === 0 ? 0 : this.ends_[index - 1], this.ends_[index]), this.layout);
+ };
+ /**
+ * Return the linestrings of this multilinestring.
+ * @return {Array<LineString>} LineStrings.
+ * @api
+ */
+
+
+ MultiLineString.prototype.getLineStrings = function () {
+ var flatCoordinates = this.flatCoordinates;
+ var ends = this.ends_;
+ var layout = this.layout;
+ /** @type {Array<LineString>} */
+
+ var lineStrings = [];
+ var offset = 0;
+
+ for (var i = 0, ii = ends.length; i < ii; ++i) {
+ var end = ends[i];
+ var lineString = new _LineString.default(flatCoordinates.slice(offset, end), layout);
+ lineStrings.push(lineString);
+ offset = end;
+ }
+
+ return lineStrings;
+ };
+ /**
+ * @return {Array<number>} Flat midpoints.
+ */
+
+
+ MultiLineString.prototype.getFlatMidpoints = function () {
+ var midpoints = [];
+ var flatCoordinates = this.flatCoordinates;
+ var offset = 0;
+ var ends = this.ends_;
+ var stride = this.stride;
+
+ for (var i = 0, ii = ends.length; i < ii; ++i) {
+ var end = ends[i];
+ var midpoint = (0, _interpolate.interpolatePoint)(flatCoordinates, offset, end, stride, 0.5);
+ (0, _array.extend)(midpoints, midpoint);
+ offset = end;
+ }
+
+ return midpoints;
+ };
+ /**
+ * @param {number} squaredTolerance Squared tolerance.
+ * @return {MultiLineString} Simplified MultiLineString.
+ * @protected
+ */
+
+
+ MultiLineString.prototype.getSimplifiedGeometryInternal = function (squaredTolerance) {
+ var simplifiedFlatCoordinates = [];
+ var simplifiedEnds = [];
+ simplifiedFlatCoordinates.length = (0, _simplify.douglasPeuckerArray)(this.flatCoordinates, 0, this.ends_, this.stride, squaredTolerance, simplifiedFlatCoordinates, 0, simplifiedEnds);
+ return new MultiLineString(simplifiedFlatCoordinates, _GeometryLayout.default.XY, simplifiedEnds);
+ };
+ /**
+ * Get the type of this geometry.
+ * @return {import("./GeometryType.js").default} Geometry type.
+ * @api
+ */
+
+
+ MultiLineString.prototype.getType = function () {
+ return _GeometryType.default.MULTI_LINE_STRING;
+ };
+ /**
+ * Test if the geometry and the passed extent intersect.
+ * @param {import("../extent.js").Extent} extent Extent.
+ * @return {boolean} `true` if the geometry and the extent intersect.
+ * @api
+ */
+
+
+ MultiLineString.prototype.intersectsExtent = function (extent) {
+ return (0, _intersectsextent.intersectsLineStringArray)(this.flatCoordinates, 0, this.ends_, this.stride, extent);
+ };
+ /**
+ * Set the coordinates of the multilinestring.
+ * @param {!Array<Array<import("../coordinate.js").Coordinate>>} coordinates Coordinates.
+ * @param {GeometryLayout=} opt_layout Layout.
+ * @api
+ */
+
+
+ MultiLineString.prototype.setCoordinates = function (coordinates, opt_layout) {
+ this.setLayout(opt_layout, coordinates, 2);
+
+ if (!this.flatCoordinates) {
+ this.flatCoordinates = [];
+ }
+
+ var ends = (0, _deflate.deflateCoordinatesArray)(this.flatCoordinates, 0, coordinates, this.stride, this.ends_);
+ this.flatCoordinates.length = ends.length === 0 ? 0 : ends[ends.length - 1];
+ this.changed();
+ };
+
+ return MultiLineString;
+}(_SimpleGeometry.default);
+
+var _default = MultiLineString;
+exports.default = _default;
+},{"./GeometryLayout.js":"../../../node_modules/ol/geom/GeometryLayout.js","./GeometryType.js":"../../../node_modules/ol/geom/GeometryType.js","./LineString.js":"../../../node_modules/ol/geom/LineString.js","./SimpleGeometry.js":"../../../node_modules/ol/geom/SimpleGeometry.js","./flat/closest.js":"../../../node_modules/ol/geom/flat/closest.js","../extent.js":"../../../node_modules/ol/extent.js","./flat/deflate.js":"../../../node_modules/ol/geom/flat/deflate.js","./flat/simplify.js":"../../../node_modules/ol/geom/flat/simplify.js","../array.js":"../../../node_modules/ol/array.js","./flat/inflate.js":"../../../node_modules/ol/geom/flat/inflate.js","./flat/interpolate.js":"../../../node_modules/ol/geom/flat/interpolate.js","./flat/intersectsextent.js":"../../../node_modules/ol/geom/flat/intersectsextent.js"}],"../../../node_modules/ol/geom/MultiPoint.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _GeometryType = _interopRequireDefault(require("./GeometryType.js"));
+
+var _Point = _interopRequireDefault(require("./Point.js"));
+
+var _SimpleGeometry = _interopRequireDefault(require("./SimpleGeometry.js"));
+
+var _extent = require("../extent.js");
+
+var _deflate = require("./flat/deflate.js");
+
+var _array = require("../array.js");
+
+var _inflate = require("./flat/inflate.js");
+
+var _math = require("../math.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/geom/MultiPoint
+ */
+
+
+/**
+ * @classdesc
+ * Multi-point geometry.
+ *
+ * @api
+ */
+var MultiPoint =
+/** @class */
+function (_super) {
+ __extends(MultiPoint, _super);
+ /**
+ * @param {Array<import("../coordinate.js").Coordinate>|Array<number>} coordinates Coordinates.
+ * For internal use, flat coordinates in combination with `opt_layout` are also accepted.
+ * @param {import("./GeometryLayout.js").default=} opt_layout Layout.
+ */
+
+
+ function MultiPoint(coordinates, opt_layout) {
+ var _this = _super.call(this) || this;
+
+ if (opt_layout && !Array.isArray(coordinates[0])) {
+ _this.setFlatCoordinates(opt_layout,
+ /** @type {Array<number>} */
+ coordinates);
+ } else {
+ _this.setCoordinates(
+ /** @type {Array<import("../coordinate.js").Coordinate>} */
+ coordinates, opt_layout);
+ }
+
+ return _this;
+ }
+ /**
+ * Append the passed point to this multipoint.
+ * @param {Point} point Point.
+ * @api
+ */
+
+
+ MultiPoint.prototype.appendPoint = function (point) {
+ if (!this.flatCoordinates) {
+ this.flatCoordinates = point.getFlatCoordinates().slice();
+ } else {
+ (0, _array.extend)(this.flatCoordinates, point.getFlatCoordinates());
+ }
+
+ this.changed();
+ };
+ /**
+ * Make a complete copy of the geometry.
+ * @return {!MultiPoint} Clone.
+ * @api
+ */
+
+
+ MultiPoint.prototype.clone = function () {
+ var multiPoint = new MultiPoint(this.flatCoordinates.slice(), this.layout);
+ return multiPoint;
+ };
+ /**
+ * @param {number} x X.
+ * @param {number} y Y.
+ * @param {import("../coordinate.js").Coordinate} closestPoint Closest point.
+ * @param {number} minSquaredDistance Minimum squared distance.
+ * @return {number} Minimum squared distance.
+ */
+
+
+ MultiPoint.prototype.closestPointXY = function (x, y, closestPoint, minSquaredDistance) {
+ if (minSquaredDistance < (0, _extent.closestSquaredDistanceXY)(this.getExtent(), x, y)) {
+ return minSquaredDistance;
+ }
+
+ var flatCoordinates = this.flatCoordinates;
+ var stride = this.stride;
+
+ for (var i = 0, ii = flatCoordinates.length; i < ii; i += stride) {
+ var squaredDistance = (0, _math.squaredDistance)(x, y, flatCoordinates[i], flatCoordinates[i + 1]);
+
+ if (squaredDistance < minSquaredDistance) {
+ minSquaredDistance = squaredDistance;
+
+ for (var j = 0; j < stride; ++j) {
+ closestPoint[j] = flatCoordinates[i + j];
+ }
+
+ closestPoint.length = stride;
+ }
+ }
+
+ return minSquaredDistance;
+ };
+ /**
+ * Return the coordinates of the multipoint.
+ * @return {Array<import("../coordinate.js").Coordinate>} Coordinates.
+ * @api
+ */
+
+
+ MultiPoint.prototype.getCoordinates = function () {
+ return (0, _inflate.inflateCoordinates)(this.flatCoordinates, 0, this.flatCoordinates.length, this.stride);
+ };
+ /**
+ * Return the point at the specified index.
+ * @param {number} index Index.
+ * @return {Point} Point.
+ * @api
+ */
+
+
+ MultiPoint.prototype.getPoint = function (index) {
+ var n = !this.flatCoordinates ? 0 : this.flatCoordinates.length / this.stride;
+
+ if (index < 0 || n <= index) {
+ return null;
+ }
+
+ return new _Point.default(this.flatCoordinates.slice(index * this.stride, (index + 1) * this.stride), this.layout);
+ };
+ /**
+ * Return the points of this multipoint.
+ * @return {Array<Point>} Points.
+ * @api
+ */
+
+
+ MultiPoint.prototype.getPoints = function () {
+ var flatCoordinates = this.flatCoordinates;
+ var layout = this.layout;
+ var stride = this.stride;
+ /** @type {Array<Point>} */
+
+ var points = [];
+
+ for (var i = 0, ii = flatCoordinates.length; i < ii; i += stride) {
+ var point = new _Point.default(flatCoordinates.slice(i, i + stride), layout);
+ points.push(point);
+ }
+
+ return points;
+ };
+ /**
+ * Get the type of this geometry.
+ * @return {import("./GeometryType.js").default} Geometry type.
+ * @api
+ */
+
+
+ MultiPoint.prototype.getType = function () {
+ return _GeometryType.default.MULTI_POINT;
+ };
+ /**
+ * Test if the geometry and the passed extent intersect.
+ * @param {import("../extent.js").Extent} extent Extent.
+ * @return {boolean} `true` if the geometry and the extent intersect.
+ * @api
+ */
+
+
+ MultiPoint.prototype.intersectsExtent = function (extent) {
+ var flatCoordinates = this.flatCoordinates;
+ var stride = this.stride;
+
+ for (var i = 0, ii = flatCoordinates.length; i < ii; i += stride) {
+ var x = flatCoordinates[i];
+ var y = flatCoordinates[i + 1];
+
+ if ((0, _extent.containsXY)(extent, x, y)) {
+ return true;
+ }
+ }
+
+ return false;
+ };
+ /**
+ * Set the coordinates of the multipoint.
+ * @param {!Array<import("../coordinate.js").Coordinate>} coordinates Coordinates.
+ * @param {import("./GeometryLayout.js").default=} opt_layout Layout.
+ * @api
+ */
+
+
+ MultiPoint.prototype.setCoordinates = function (coordinates, opt_layout) {
+ this.setLayout(opt_layout, coordinates, 1);
+
+ if (!this.flatCoordinates) {
+ this.flatCoordinates = [];
+ }
+
+ this.flatCoordinates.length = (0, _deflate.deflateCoordinates)(this.flatCoordinates, 0, coordinates, this.stride);
+ this.changed();
+ };
+
+ return MultiPoint;
+}(_SimpleGeometry.default);
+
+var _default = MultiPoint;
+exports.default = _default;
+},{"./GeometryType.js":"../../../node_modules/ol/geom/GeometryType.js","./Point.js":"../../../node_modules/ol/geom/Point.js","./SimpleGeometry.js":"../../../node_modules/ol/geom/SimpleGeometry.js","../extent.js":"../../../node_modules/ol/extent.js","./flat/deflate.js":"../../../node_modules/ol/geom/flat/deflate.js","../array.js":"../../../node_modules/ol/array.js","./flat/inflate.js":"../../../node_modules/ol/geom/flat/inflate.js","../math.js":"../../../node_modules/ol/math.js"}],"../../../node_modules/ol/geom/flat/center.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.linearRingss = linearRingss;
+
+var _extent = require("../../extent.js");
+
+/**
+ * @module ol/geom/flat/center
+ */
+
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {Array<Array<number>>} endss Endss.
+ * @param {number} stride Stride.
+ * @return {Array<number>} Flat centers.
+ */
+function linearRingss(flatCoordinates, offset, endss, stride) {
+ var flatCenters = [];
+ var extent = (0, _extent.createEmpty)();
+
+ for (var i = 0, ii = endss.length; i < ii; ++i) {
+ var ends = endss[i];
+ extent = (0, _extent.createOrUpdateFromFlatCoordinates)(flatCoordinates, offset, ends[0], stride);
+ flatCenters.push((extent[0] + extent[2]) / 2, (extent[1] + extent[3]) / 2);
+ offset = ends[ends.length - 1];
+ }
+
+ return flatCenters;
+}
+},{"../../extent.js":"../../../node_modules/ol/extent.js"}],"../../../node_modules/ol/geom/MultiPolygon.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _GeometryLayout = _interopRequireDefault(require("./GeometryLayout.js"));
+
+var _GeometryType = _interopRequireDefault(require("./GeometryType.js"));
+
+var _MultiPoint = _interopRequireDefault(require("./MultiPoint.js"));
+
+var _Polygon = _interopRequireDefault(require("./Polygon.js"));
+
+var _SimpleGeometry = _interopRequireDefault(require("./SimpleGeometry.js"));
+
+var _closest = require("./flat/closest.js");
+
+var _extent = require("../extent.js");
+
+var _deflate = require("./flat/deflate.js");
+
+var _array = require("../array.js");
+
+var _interiorpoint = require("./flat/interiorpoint.js");
+
+var _inflate = require("./flat/inflate.js");
+
+var _intersectsextent = require("./flat/intersectsextent.js");
+
+var _orient = require("./flat/orient.js");
+
+var _area = require("./flat/area.js");
+
+var _center = require("./flat/center.js");
+
+var _contains = require("./flat/contains.js");
+
+var _simplify = require("./flat/simplify.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/geom/MultiPolygon
+ */
+
+
+/**
+ * @classdesc
+ * Multi-polygon geometry.
+ *
+ * @api
+ */
+var MultiPolygon =
+/** @class */
+function (_super) {
+ __extends(MultiPolygon, _super);
+ /**
+ * @param {Array<Array<Array<import("../coordinate.js").Coordinate>>|Polygon>|Array<number>} coordinates Coordinates.
+ * For internal use, flat coordinates in combination with `opt_layout` and `opt_endss` are also accepted.
+ * @param {import("./GeometryLayout.js").default=} opt_layout Layout.
+ * @param {Array<Array<number>>=} opt_endss Array of ends for internal use with flat coordinates.
+ */
+
+
+ function MultiPolygon(coordinates, opt_layout, opt_endss) {
+ var _this = _super.call(this) || this;
+ /**
+ * @type {Array<Array<number>>}
+ * @private
+ */
+
+
+ _this.endss_ = [];
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.flatInteriorPointsRevision_ = -1;
+ /**
+ * @private
+ * @type {Array<number>}
+ */
+
+ _this.flatInteriorPoints_ = null;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.maxDelta_ = -1;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.maxDeltaRevision_ = -1;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.orientedRevision_ = -1;
+ /**
+ * @private
+ * @type {Array<number>}
+ */
+
+ _this.orientedFlatCoordinates_ = null;
+
+ if (!opt_endss && !Array.isArray(coordinates[0])) {
+ var layout = _this.getLayout();
+
+ var polygons =
+ /** @type {Array<Polygon>} */
+ coordinates;
+ var flatCoordinates = [];
+ var endss = [];
+
+ for (var i = 0, ii = polygons.length; i < ii; ++i) {
+ var polygon = polygons[i];
+
+ if (i === 0) {
+ layout = polygon.getLayout();
+ }
+
+ var offset = flatCoordinates.length;
+ var ends = polygon.getEnds();
+
+ for (var j = 0, jj = ends.length; j < jj; ++j) {
+ ends[j] += offset;
+ }
+
+ (0, _array.extend)(flatCoordinates, polygon.getFlatCoordinates());
+ endss.push(ends);
+ }
+
+ opt_layout = layout;
+ coordinates = flatCoordinates;
+ opt_endss = endss;
+ }
+
+ if (opt_layout !== undefined && opt_endss) {
+ _this.setFlatCoordinates(opt_layout,
+ /** @type {Array<number>} */
+ coordinates);
+
+ _this.endss_ = opt_endss;
+ } else {
+ _this.setCoordinates(
+ /** @type {Array<Array<Array<import("../coordinate.js").Coordinate>>>} */
+ coordinates, opt_layout);
+ }
+
+ return _this;
+ }
+ /**
+ * Append the passed polygon to this multipolygon.
+ * @param {Polygon} polygon Polygon.
+ * @api
+ */
+
+
+ MultiPolygon.prototype.appendPolygon = function (polygon) {
+ /** @type {Array<number>} */
+ var ends;
+
+ if (!this.flatCoordinates) {
+ this.flatCoordinates = polygon.getFlatCoordinates().slice();
+ ends = polygon.getEnds().slice();
+ this.endss_.push();
+ } else {
+ var offset = this.flatCoordinates.length;
+ (0, _array.extend)(this.flatCoordinates, polygon.getFlatCoordinates());
+ ends = polygon.getEnds().slice();
+
+ for (var i = 0, ii = ends.length; i < ii; ++i) {
+ ends[i] += offset;
+ }
+ }
+
+ this.endss_.push(ends);
+ this.changed();
+ };
+ /**
+ * Make a complete copy of the geometry.
+ * @return {!MultiPolygon} Clone.
+ * @api
+ */
+
+
+ MultiPolygon.prototype.clone = function () {
+ var len = this.endss_.length;
+ var newEndss = new Array(len);
+
+ for (var i = 0; i < len; ++i) {
+ newEndss[i] = this.endss_[i].slice();
+ }
+
+ return new MultiPolygon(this.flatCoordinates.slice(), this.layout, newEndss);
+ };
+ /**
+ * @param {number} x X.
+ * @param {number} y Y.
+ * @param {import("../coordinate.js").Coordinate} closestPoint Closest point.
+ * @param {number} minSquaredDistance Minimum squared distance.
+ * @return {number} Minimum squared distance.
+ */
+
+
+ MultiPolygon.prototype.closestPointXY = function (x, y, closestPoint, minSquaredDistance) {
+ if (minSquaredDistance < (0, _extent.closestSquaredDistanceXY)(this.getExtent(), x, y)) {
+ return minSquaredDistance;
+ }
+
+ if (this.maxDeltaRevision_ != this.getRevision()) {
+ this.maxDelta_ = Math.sqrt((0, _closest.multiArrayMaxSquaredDelta)(this.flatCoordinates, 0, this.endss_, this.stride, 0));
+ this.maxDeltaRevision_ = this.getRevision();
+ }
+
+ return (0, _closest.assignClosestMultiArrayPoint)(this.getOrientedFlatCoordinates(), 0, this.endss_, this.stride, this.maxDelta_, true, x, y, closestPoint, minSquaredDistance);
+ };
+ /**
+ * @param {number} x X.
+ * @param {number} y Y.
+ * @return {boolean} Contains (x, y).
+ */
+
+
+ MultiPolygon.prototype.containsXY = function (x, y) {
+ return (0, _contains.linearRingssContainsXY)(this.getOrientedFlatCoordinates(), 0, this.endss_, this.stride, x, y);
+ };
+ /**
+ * Return the area of the multipolygon on projected plane.
+ * @return {number} Area (on projected plane).
+ * @api
+ */
+
+
+ MultiPolygon.prototype.getArea = function () {
+ return (0, _area.linearRingss)(this.getOrientedFlatCoordinates(), 0, this.endss_, this.stride);
+ };
+ /**
+ * Get the coordinate array for this geometry. This array has the structure
+ * of a GeoJSON coordinate array for multi-polygons.
+ *
+ * @param {boolean=} opt_right Orient coordinates according to the right-hand
+ * rule (counter-clockwise for exterior and clockwise for interior rings).
+ * If `false`, coordinates will be oriented according to the left-hand rule
+ * (clockwise for exterior and counter-clockwise for interior rings).
+ * By default, coordinate orientation will depend on how the geometry was
+ * constructed.
+ * @return {Array<Array<Array<import("../coordinate.js").Coordinate>>>} Coordinates.
+ * @api
+ */
+
+
+ MultiPolygon.prototype.getCoordinates = function (opt_right) {
+ var flatCoordinates;
+
+ if (opt_right !== undefined) {
+ flatCoordinates = this.getOrientedFlatCoordinates().slice();
+ (0, _orient.orientLinearRingsArray)(flatCoordinates, 0, this.endss_, this.stride, opt_right);
+ } else {
+ flatCoordinates = this.flatCoordinates;
+ }
+
+ return (0, _inflate.inflateMultiCoordinatesArray)(flatCoordinates, 0, this.endss_, this.stride);
+ };
+ /**
+ * @return {Array<Array<number>>} Endss.
+ */
+
+
+ MultiPolygon.prototype.getEndss = function () {
+ return this.endss_;
+ };
+ /**
+ * @return {Array<number>} Flat interior points.
+ */
+
+
+ MultiPolygon.prototype.getFlatInteriorPoints = function () {
+ if (this.flatInteriorPointsRevision_ != this.getRevision()) {
+ var flatCenters = (0, _center.linearRingss)(this.flatCoordinates, 0, this.endss_, this.stride);
+ this.flatInteriorPoints_ = (0, _interiorpoint.getInteriorPointsOfMultiArray)(this.getOrientedFlatCoordinates(), 0, this.endss_, this.stride, flatCenters);
+ this.flatInteriorPointsRevision_ = this.getRevision();
+ }
+
+ return this.flatInteriorPoints_;
+ };
+ /**
+ * Return the interior points as {@link module:ol/geom/MultiPoint multipoint}.
+ * @return {MultiPoint} Interior points as XYM coordinates, where M is
+ * the length of the horizontal intersection that the point belongs to.
+ * @api
+ */
+
+
+ MultiPolygon.prototype.getInteriorPoints = function () {
+ return new _MultiPoint.default(this.getFlatInteriorPoints().slice(), _GeometryLayout.default.XYM);
+ };
+ /**
+ * @return {Array<number>} Oriented flat coordinates.
+ */
+
+
+ MultiPolygon.prototype.getOrientedFlatCoordinates = function () {
+ if (this.orientedRevision_ != this.getRevision()) {
+ var flatCoordinates = this.flatCoordinates;
+
+ if ((0, _orient.linearRingssAreOriented)(flatCoordinates, 0, this.endss_, this.stride)) {
+ this.orientedFlatCoordinates_ = flatCoordinates;
+ } else {
+ this.orientedFlatCoordinates_ = flatCoordinates.slice();
+ this.orientedFlatCoordinates_.length = (0, _orient.orientLinearRingsArray)(this.orientedFlatCoordinates_, 0, this.endss_, this.stride);
+ }
+
+ this.orientedRevision_ = this.getRevision();
+ }
+
+ return this.orientedFlatCoordinates_;
+ };
+ /**
+ * @param {number} squaredTolerance Squared tolerance.
+ * @return {MultiPolygon} Simplified MultiPolygon.
+ * @protected
+ */
+
+
+ MultiPolygon.prototype.getSimplifiedGeometryInternal = function (squaredTolerance) {
+ var simplifiedFlatCoordinates = [];
+ var simplifiedEndss = [];
+ simplifiedFlatCoordinates.length = (0, _simplify.quantizeMultiArray)(this.flatCoordinates, 0, this.endss_, this.stride, Math.sqrt(squaredTolerance), simplifiedFlatCoordinates, 0, simplifiedEndss);
+ return new MultiPolygon(simplifiedFlatCoordinates, _GeometryLayout.default.XY, simplifiedEndss);
+ };
+ /**
+ * Return the polygon at the specified index.
+ * @param {number} index Index.
+ * @return {Polygon} Polygon.
+ * @api
+ */
+
+
+ MultiPolygon.prototype.getPolygon = function (index) {
+ if (index < 0 || this.endss_.length <= index) {
+ return null;
+ }
+
+ var offset;
+
+ if (index === 0) {
+ offset = 0;
+ } else {
+ var prevEnds = this.endss_[index - 1];
+ offset = prevEnds[prevEnds.length - 1];
+ }
+
+ var ends = this.endss_[index].slice();
+ var end = ends[ends.length - 1];
+
+ if (offset !== 0) {
+ for (var i = 0, ii = ends.length; i < ii; ++i) {
+ ends[i] -= offset;
+ }
+ }
+
+ return new _Polygon.default(this.flatCoordinates.slice(offset, end), this.layout, ends);
+ };
+ /**
+ * Return the polygons of this multipolygon.
+ * @return {Array<Polygon>} Polygons.
+ * @api
+ */
+
+
+ MultiPolygon.prototype.getPolygons = function () {
+ var layout = this.layout;
+ var flatCoordinates = this.flatCoordinates;
+ var endss = this.endss_;
+ var polygons = [];
+ var offset = 0;
+
+ for (var i = 0, ii = endss.length; i < ii; ++i) {
+ var ends = endss[i].slice();
+ var end = ends[ends.length - 1];
+
+ if (offset !== 0) {
+ for (var j = 0, jj = ends.length; j < jj; ++j) {
+ ends[j] -= offset;
+ }
+ }
+
+ var polygon = new _Polygon.default(flatCoordinates.slice(offset, end), layout, ends);
+ polygons.push(polygon);
+ offset = end;
+ }
+
+ return polygons;
+ };
+ /**
+ * Get the type of this geometry.
+ * @return {import("./GeometryType.js").default} Geometry type.
+ * @api
+ */
+
+
+ MultiPolygon.prototype.getType = function () {
+ return _GeometryType.default.MULTI_POLYGON;
+ };
+ /**
+ * Test if the geometry and the passed extent intersect.
+ * @param {import("../extent.js").Extent} extent Extent.
+ * @return {boolean} `true` if the geometry and the extent intersect.
+ * @api
+ */
+
+
+ MultiPolygon.prototype.intersectsExtent = function (extent) {
+ return (0, _intersectsextent.intersectsLinearRingMultiArray)(this.getOrientedFlatCoordinates(), 0, this.endss_, this.stride, extent);
+ };
+ /**
+ * Set the coordinates of the multipolygon.
+ * @param {!Array<Array<Array<import("../coordinate.js").Coordinate>>>} coordinates Coordinates.
+ * @param {import("./GeometryLayout.js").default=} opt_layout Layout.
+ * @api
+ */
+
+
+ MultiPolygon.prototype.setCoordinates = function (coordinates, opt_layout) {
+ this.setLayout(opt_layout, coordinates, 3);
+
+ if (!this.flatCoordinates) {
+ this.flatCoordinates = [];
+ }
+
+ var endss = (0, _deflate.deflateMultiCoordinatesArray)(this.flatCoordinates, 0, coordinates, this.stride, this.endss_);
+
+ if (endss.length === 0) {
+ this.flatCoordinates.length = 0;
+ } else {
+ var lastEnds = endss[endss.length - 1];
+ this.flatCoordinates.length = lastEnds.length === 0 ? 0 : lastEnds[lastEnds.length - 1];
+ }
+
+ this.changed();
+ };
+
+ return MultiPolygon;
+}(_SimpleGeometry.default);
+
+var _default = MultiPolygon;
+exports.default = _default;
+},{"./GeometryLayout.js":"../../../node_modules/ol/geom/GeometryLayout.js","./GeometryType.js":"../../../node_modules/ol/geom/GeometryType.js","./MultiPoint.js":"../../../node_modules/ol/geom/MultiPoint.js","./Polygon.js":"../../../node_modules/ol/geom/Polygon.js","./SimpleGeometry.js":"../../../node_modules/ol/geom/SimpleGeometry.js","./flat/closest.js":"../../../node_modules/ol/geom/flat/closest.js","../extent.js":"../../../node_modules/ol/extent.js","./flat/deflate.js":"../../../node_modules/ol/geom/flat/deflate.js","../array.js":"../../../node_modules/ol/array.js","./flat/interiorpoint.js":"../../../node_modules/ol/geom/flat/interiorpoint.js","./flat/inflate.js":"../../../node_modules/ol/geom/flat/inflate.js","./flat/intersectsextent.js":"../../../node_modules/ol/geom/flat/intersectsextent.js","./flat/orient.js":"../../../node_modules/ol/geom/flat/orient.js","./flat/area.js":"../../../node_modules/ol/geom/flat/area.js","./flat/center.js":"../../../node_modules/ol/geom/flat/center.js","./flat/contains.js":"../../../node_modules/ol/geom/flat/contains.js","./flat/simplify.js":"../../../node_modules/ol/geom/flat/simplify.js"}],"../../../node_modules/ol/interaction/Draw.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.createRegularPolygon = createRegularPolygon;
+exports.createBox = createBox;
+exports.default = void 0;
+
+var _Circle = _interopRequireDefault(require("../geom/Circle.js"));
+
+var _Event = _interopRequireDefault(require("../events/Event.js"));
+
+var _EventType = _interopRequireDefault(require("../events/EventType.js"));
+
+var _Feature = _interopRequireDefault(require("../Feature.js"));
+
+var _GeometryType = _interopRequireDefault(require("../geom/GeometryType.js"));
+
+var _Property = _interopRequireDefault(require("./Property.js"));
+
+var _LineString = _interopRequireDefault(require("../geom/LineString.js"));
+
+var _MapBrowserEvent = _interopRequireDefault(require("../MapBrowserEvent.js"));
+
+var _MapBrowserEventType = _interopRequireDefault(require("../MapBrowserEventType.js"));
+
+var _MultiLineString = _interopRequireDefault(require("../geom/MultiLineString.js"));
+
+var _MultiPoint = _interopRequireDefault(require("../geom/MultiPoint.js"));
+
+var _MultiPolygon = _interopRequireDefault(require("../geom/MultiPolygon.js"));
+
+var _Point = _interopRequireDefault(require("../geom/Point.js"));
+
+var _Pointer = _interopRequireDefault(require("./Pointer.js"));
+
+var _Polygon = _interopRequireWildcard(require("../geom/Polygon.js"));
+
+var _Vector = _interopRequireDefault(require("../layer/Vector.js"));
+
+var _Vector2 = _interopRequireDefault(require("../source/Vector.js"));
+
+var _functions = require("../functions.js");
+
+var _condition = require("../events/condition.js");
+
+var _extent = require("../extent.js");
+
+var _Style = require("../style/Style.js");
+
+var _proj = require("../proj.js");
+
+var _Object = require("../Object.js");
+
+var _coordinate = require("../coordinate.js");
+
+function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/interaction/Draw
+ */
+
+
+/**
+ * @typedef {Object} Options
+ * @property {import("../geom/GeometryType.js").default} type Geometry type of
+ * the geometries being drawn with this instance.
+ * @property {number} [clickTolerance=6] The maximum distance in pixels between
+ * "down" and "up" for a "up" event to be considered a "click" event and
+ * actually add a point/vertex to the geometry being drawn. The default of `6`
+ * was chosen for the draw interaction to behave correctly on mouse as well as
+ * on touch devices.
+ * @property {import("../Collection.js").default<Feature>} [features]
+ * Destination collection for the drawn features.
+ * @property {VectorSource} [source] Destination source for
+ * the drawn features.
+ * @property {number} [dragVertexDelay=500] Delay in milliseconds after pointerdown
+ * before the current vertex can be dragged to its exact position.
+ * @property {number} [snapTolerance=12] Pixel distance for snapping to the
+ * drawing finish.
+ * @property {boolean} [stopClick=false] Stop click, singleclick, and
+ * doubleclick events from firing during drawing.
+ * @property {number} [maxPoints] The number of points that can be drawn before
+ * a polygon ring or line string is finished. By default there is no
+ * restriction.
+ * @property {number} [minPoints] The number of points that must be drawn
+ * before a polygon ring or line string can be finished. Default is `3` for
+ * polygon rings and `2` for line strings.
+ * @property {import("../events/condition.js").Condition} [finishCondition] A function
+ * that takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a
+ * boolean to indicate whether the drawing can be finished.
+ * @property {import("../style/Style.js").StyleLike} [style]
+ * Style for sketch features.
+ * @property {GeometryFunction} [geometryFunction]
+ * Function that is called when a geometry's coordinates are updated.
+ * @property {string} [geometryName] Geometry name to use for features created
+ * by the draw interaction.
+ * @property {import("../events/condition.js").Condition} [condition] A function that
+ * takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a
+ * boolean to indicate whether that event should be handled.
+ * By default {@link module:ol/events/condition~noModifierKeys}, i.e. a click,
+ * adds a vertex or deactivates freehand drawing.
+ * @property {boolean} [freehand=false] Operate in freehand mode for lines,
+ * polygons, and circles. This makes the interaction always operate in freehand
+ * mode and takes precedence over any `freehandCondition` option.
+ * @property {import("../events/condition.js").Condition} [freehandCondition]
+ * Condition that activates freehand drawing for lines and polygons. This
+ * function takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and
+ * returns a boolean to indicate whether that event should be handled. The
+ * default is {@link module:ol/events/condition~shiftKeyOnly}, meaning that the
+ * Shift key activates freehand drawing.
+ * @property {boolean} [wrapX=false] Wrap the world horizontally on the sketch
+ * overlay.
+ */
+
+/**
+ * Coordinate type when drawing points.
+ * @typedef {import("../coordinate.js").Coordinate} PointCoordType
+ */
+
+/**
+ * Coordinate type when drawing lines.
+ * @typedef {Array<import("../coordinate.js").Coordinate>} LineCoordType
+ */
+
+/**
+ * Coordinate type when drawing polygons.
+ * @typedef {Array<Array<import("../coordinate.js").Coordinate>>} PolyCoordType
+ */
+
+/**
+ * Types used for drawing coordinates.
+ * @typedef {PointCoordType|LineCoordType|PolyCoordType} SketchCoordType
+ */
+
+/**
+ * Function that takes an array of coordinates and an optional existing geometry
+ * and a projection as arguments, and returns a geometry. The optional existing
+ * geometry is the geometry that is returned when the function is called without
+ * a second argument.
+ * @typedef {function(!SketchCoordType, import("../geom/SimpleGeometry.js").default=,
+ * import("../proj/Projection.js").default=):
+ * import("../geom/SimpleGeometry.js").default} GeometryFunction
+ */
+
+/**
+ * Draw mode. This collapses multi-part geometry types with their single-part
+ * cousins.
+ * @enum {string}
+ */
+var Mode = {
+ POINT: 'Point',
+ LINE_STRING: 'LineString',
+ POLYGON: 'Polygon',
+ CIRCLE: 'Circle'
+};
+/**
+ * @enum {string}
+ */
+
+var DrawEventType = {
+ /**
+ * Triggered upon feature draw start
+ * @event DrawEvent#drawstart
+ * @api
+ */
+ DRAWSTART: 'drawstart',
+
+ /**
+ * Triggered upon feature draw end
+ * @event DrawEvent#drawend
+ * @api
+ */
+ DRAWEND: 'drawend',
+
+ /**
+ * Triggered upon feature draw abortion
+ * @event DrawEvent#drawabort
+ * @api
+ */
+ DRAWABORT: 'drawabort'
+};
+/**
+ * @classdesc
+ * Events emitted by {@link module:ol/interaction/Draw~Draw} instances are
+ * instances of this type.
+ */
+
+var DrawEvent =
+/** @class */
+function (_super) {
+ __extends(DrawEvent, _super);
+ /**
+ * @param {DrawEventType} type Type.
+ * @param {Feature} feature The feature drawn.
+ */
+
+
+ function DrawEvent(type, feature) {
+ var _this = _super.call(this, type) || this;
+ /**
+ * The feature being drawn.
+ * @type {Feature}
+ * @api
+ */
+
+
+ _this.feature = feature;
+ return _this;
+ }
+
+ return DrawEvent;
+}(_Event.default);
+/**
+ * @classdesc
+ * Interaction for drawing feature geometries.
+ *
+ * @fires DrawEvent
+ * @api
+ */
+
+
+var Draw =
+/** @class */
+function (_super) {
+ __extends(Draw, _super);
+ /**
+ * @param {Options} options Options.
+ */
+
+
+ function Draw(options) {
+ var _this = this;
+
+ var pointerOptions =
+ /** @type {import("./Pointer.js").Options} */
+ options;
+
+ if (!pointerOptions.stopDown) {
+ pointerOptions.stopDown = _functions.FALSE;
+ }
+
+ _this = _super.call(this, pointerOptions) || this;
+ /**
+ * @type {boolean}
+ * @private
+ */
+
+ _this.shouldHandle_ = false;
+ /**
+ * @type {import("../pixel.js").Pixel}
+ * @private
+ */
+
+ _this.downPx_ = null;
+ /**
+ * @type {?}
+ * @private
+ */
+
+ _this.downTimeout_;
+ /**
+ * @type {number|undefined}
+ * @private
+ */
+
+ _this.lastDragTime_;
+ /**
+ * @type {boolean}
+ * @private
+ */
+
+ _this.freehand_ = false;
+ /**
+ * Target source for drawn features.
+ * @type {VectorSource}
+ * @private
+ */
+
+ _this.source_ = options.source ? options.source : null;
+ /**
+ * Target collection for drawn features.
+ * @type {import("../Collection.js").default<Feature>}
+ * @private
+ */
+
+ _this.features_ = options.features ? options.features : null;
+ /**
+ * Pixel distance for snapping.
+ * @type {number}
+ * @private
+ */
+
+ _this.snapTolerance_ = options.snapTolerance ? options.snapTolerance : 12;
+ /**
+ * Geometry type.
+ * @type {import("../geom/GeometryType.js").default}
+ * @private
+ */
+
+ _this.type_ =
+ /** @type {import("../geom/GeometryType.js").default} */
+ options.type;
+ /**
+ * Drawing mode (derived from geometry type.
+ * @type {Mode}
+ * @private
+ */
+
+ _this.mode_ = getMode(_this.type_);
+ /**
+ * Stop click, singleclick, and doubleclick events from firing during drawing.
+ * Default is `false`.
+ * @type {boolean}
+ * @private
+ */
+
+ _this.stopClick_ = !!options.stopClick;
+ /**
+ * The number of points that must be drawn before a polygon ring or line
+ * string can be finished. The default is 3 for polygon rings and 2 for
+ * line strings.
+ * @type {number}
+ * @private
+ */
+
+ _this.minPoints_ = options.minPoints ? options.minPoints : _this.mode_ === Mode.POLYGON ? 3 : 2;
+ /**
+ * The number of points that can be drawn before a polygon ring or line string
+ * is finished. The default is no restriction.
+ * @type {number}
+ * @private
+ */
+
+ _this.maxPoints_ = options.maxPoints ? options.maxPoints : Infinity;
+ /**
+ * A function to decide if a potential finish coordinate is permissible
+ * @private
+ * @type {import("../events/condition.js").Condition}
+ */
+
+ _this.finishCondition_ = options.finishCondition ? options.finishCondition : _functions.TRUE;
+ var geometryFunction = options.geometryFunction;
+
+ if (!geometryFunction) {
+ if (_this.type_ === _GeometryType.default.CIRCLE) {
+ /**
+ * @param {!LineCoordType} coordinates The coordinates.
+ * @param {import("../geom/SimpleGeometry.js").default=} opt_geometry Optional geometry.
+ * @param {import("../proj/Projection.js").default} projection The view projection.
+ * @return {import("../geom/SimpleGeometry.js").default} A geometry.
+ */
+ geometryFunction = function (coordinates, opt_geometry, projection) {
+ var circle = opt_geometry ?
+ /** @type {Circle} */
+ opt_geometry : new _Circle.default([NaN, NaN]);
+ var center = (0, _proj.fromUserCoordinate)(coordinates[0], projection);
+ var squaredLength = (0, _coordinate.squaredDistance)(center, (0, _proj.fromUserCoordinate)(coordinates[1], projection));
+ circle.setCenterAndRadius(center, Math.sqrt(squaredLength));
+ var userProjection = (0, _proj.getUserProjection)();
+
+ if (userProjection) {
+ circle.transform(projection, userProjection);
+ }
+
+ return circle;
+ };
+ } else {
+ var Constructor_1;
+ var mode_1 = _this.mode_;
+
+ if (mode_1 === Mode.POINT) {
+ Constructor_1 = _Point.default;
+ } else if (mode_1 === Mode.LINE_STRING) {
+ Constructor_1 = _LineString.default;
+ } else if (mode_1 === Mode.POLYGON) {
+ Constructor_1 = _Polygon.default;
+ }
+ /**
+ * @param {!LineCoordType} coordinates The coordinates.
+ * @param {import("../geom/SimpleGeometry.js").default=} opt_geometry Optional geometry.
+ * @param {import("../proj/Projection.js").default} projection The view projection.
+ * @return {import("../geom/SimpleGeometry.js").default} A geometry.
+ */
+
+
+ geometryFunction = function (coordinates, opt_geometry, projection) {
+ var geometry = opt_geometry;
+
+ if (geometry) {
+ if (mode_1 === Mode.POLYGON) {
+ if (coordinates[0].length) {
+ // Add a closing coordinate to match the first
+ geometry.setCoordinates([coordinates[0].concat([coordinates[0][0]])]);
+ } else {
+ geometry.setCoordinates([]);
+ }
+ } else {
+ geometry.setCoordinates(coordinates);
+ }
+ } else {
+ geometry = new Constructor_1(coordinates);
+ }
+
+ return geometry;
+ };
+ }
+ }
+ /**
+ * @type {GeometryFunction}
+ * @private
+ */
+
+
+ _this.geometryFunction_ = geometryFunction;
+ /**
+ * @type {number}
+ * @private
+ */
+
+ _this.dragVertexDelay_ = options.dragVertexDelay !== undefined ? options.dragVertexDelay : 500;
+ /**
+ * Finish coordinate for the feature (first point for polygons, last point for
+ * linestrings).
+ * @type {import("../coordinate.js").Coordinate}
+ * @private
+ */
+
+ _this.finishCoordinate_ = null;
+ /**
+ * Sketch feature.
+ * @type {Feature}
+ * @private
+ */
+
+ _this.sketchFeature_ = null;
+ /**
+ * Sketch point.
+ * @type {Feature<Point>}
+ * @private
+ */
+
+ _this.sketchPoint_ = null;
+ /**
+ * Sketch coordinates. Used when drawing a line or polygon.
+ * @type {SketchCoordType}
+ * @private
+ */
+
+ _this.sketchCoords_ = null;
+ /**
+ * Sketch line. Used when drawing polygon.
+ * @type {Feature<LineString>}
+ * @private
+ */
+
+ _this.sketchLine_ = null;
+ /**
+ * Sketch line coordinates. Used when drawing a polygon or circle.
+ * @type {LineCoordType}
+ * @private
+ */
+
+ _this.sketchLineCoords_ = null;
+ /**
+ * Squared tolerance for handling up events. If the squared distance
+ * between a down and up event is greater than this tolerance, up events
+ * will not be handled.
+ * @type {number}
+ * @private
+ */
+
+ _this.squaredClickTolerance_ = options.clickTolerance ? options.clickTolerance * options.clickTolerance : 36;
+ /**
+ * Draw overlay where our sketch features are drawn.
+ * @type {VectorLayer}
+ * @private
+ */
+
+ _this.overlay_ = new _Vector.default({
+ source: new _Vector2.default({
+ useSpatialIndex: false,
+ wrapX: options.wrapX ? options.wrapX : false
+ }),
+ style: options.style ? options.style : getDefaultStyleFunction(),
+ updateWhileInteracting: true
+ });
+ /**
+ * Name of the geometry attribute for newly created features.
+ * @type {string|undefined}
+ * @private
+ */
+
+ _this.geometryName_ = options.geometryName;
+ /**
+ * @private
+ * @type {import("../events/condition.js").Condition}
+ */
+
+ _this.condition_ = options.condition ? options.condition : _condition.noModifierKeys;
+ /**
+ * @private
+ * @type {import("../events/condition.js").Condition}
+ */
+
+ _this.freehandCondition_;
+
+ if (options.freehand) {
+ _this.freehandCondition_ = _condition.always;
+ } else {
+ _this.freehandCondition_ = options.freehandCondition ? options.freehandCondition : _condition.shiftKeyOnly;
+ }
+
+ _this.addEventListener((0, _Object.getChangeEventType)(_Property.default.ACTIVE), _this.updateState_);
+
+ return _this;
+ }
+ /**
+ * Remove the interaction from its current map and attach it to the new map.
+ * Subclasses may set up event handlers to get notified about changes to
+ * the map here.
+ * @param {import("../PluggableMap.js").default} map Map.
+ */
+
+
+ Draw.prototype.setMap = function (map) {
+ _super.prototype.setMap.call(this, map);
+
+ this.updateState_();
+ };
+ /**
+ * Get the overlay layer that this interaction renders sketch features to.
+ * @return {VectorLayer} Overlay layer.
+ * @api
+ */
+
+
+ Draw.prototype.getOverlay = function () {
+ return this.overlay_;
+ };
+ /**
+ * Handles the {@link module:ol/MapBrowserEvent map browser event} and may actually draw or finish the drawing.
+ * @param {import("../MapBrowserEvent.js").default} event Map browser event.
+ * @return {boolean} `false` to stop event propagation.
+ * @api
+ */
+
+
+ Draw.prototype.handleEvent = function (event) {
+ if (event.originalEvent.type === _EventType.default.CONTEXTMENU) {
+ // Avoid context menu for long taps when drawing on mobile
+ event.preventDefault();
+ }
+
+ this.freehand_ = this.mode_ !== Mode.POINT && this.freehandCondition_(event);
+ var move = event.type === _MapBrowserEventType.default.POINTERMOVE;
+ var pass = true;
+
+ if (!this.freehand_ && this.lastDragTime_ && event.type === _MapBrowserEventType.default.POINTERDRAG) {
+ var now = Date.now();
+
+ if (now - this.lastDragTime_ >= this.dragVertexDelay_) {
+ this.downPx_ = event.pixel;
+ this.shouldHandle_ = !this.freehand_;
+ move = true;
+ } else {
+ this.lastDragTime_ = undefined;
+ }
+
+ if (this.shouldHandle_ && this.downTimeout_ !== undefined) {
+ clearTimeout(this.downTimeout_);
+ this.downTimeout_ = undefined;
+ }
+ }
+
+ if (this.freehand_ && event.type === _MapBrowserEventType.default.POINTERDRAG && this.sketchFeature_ !== null) {
+ this.addToDrawing_(event.coordinate);
+ pass = false;
+ } else if (this.freehand_ && event.type === _MapBrowserEventType.default.POINTERDOWN) {
+ pass = false;
+ } else if (move) {
+ pass = event.type === _MapBrowserEventType.default.POINTERMOVE;
+
+ if (pass && this.freehand_) {
+ this.handlePointerMove_(event);
+
+ if (this.shouldHandle_) {
+ // Avoid page scrolling when freehand drawing on mobile
+ event.preventDefault();
+ }
+ } else if (event.originalEvent.pointerType == 'mouse' || event.type === _MapBrowserEventType.default.POINTERDRAG && this.downTimeout_ === undefined) {
+ this.handlePointerMove_(event);
+ }
+ } else if (event.type === _MapBrowserEventType.default.DBLCLICK) {
+ pass = false;
+ }
+
+ return _super.prototype.handleEvent.call(this, event) && pass;
+ };
+ /**
+ * Handle pointer down events.
+ * @param {import("../MapBrowserEvent.js").default} event Event.
+ * @return {boolean} If the event was consumed.
+ */
+
+
+ Draw.prototype.handleDownEvent = function (event) {
+ this.shouldHandle_ = !this.freehand_;
+
+ if (this.freehand_) {
+ this.downPx_ = event.pixel;
+
+ if (!this.finishCoordinate_) {
+ this.startDrawing_(event);
+ }
+
+ return true;
+ } else if (this.condition_(event)) {
+ this.lastDragTime_ = Date.now();
+ this.downTimeout_ = setTimeout(function () {
+ this.handlePointerMove_(new _MapBrowserEvent.default(_MapBrowserEventType.default.POINTERMOVE, event.map, event.originalEvent, false, event.frameState));
+ }.bind(this), this.dragVertexDelay_);
+ this.downPx_ = event.pixel;
+ return true;
+ } else {
+ this.lastDragTime_ = undefined;
+ return false;
+ }
+ };
+ /**
+ * Handle pointer up events.
+ * @param {import("../MapBrowserEvent.js").default} event Event.
+ * @return {boolean} If the event was consumed.
+ */
+
+
+ Draw.prototype.handleUpEvent = function (event) {
+ var pass = true;
+
+ if (this.downTimeout_) {
+ clearTimeout(this.downTimeout_);
+ this.downTimeout_ = undefined;
+ }
+
+ this.handlePointerMove_(event);
+ var circleMode = this.mode_ === Mode.CIRCLE;
+
+ if (this.shouldHandle_) {
+ if (!this.finishCoordinate_) {
+ this.startDrawing_(event);
+
+ if (this.mode_ === Mode.POINT) {
+ this.finishDrawing();
+ }
+ } else if (this.freehand_ || circleMode) {
+ this.finishDrawing();
+ } else if (this.atFinish_(event)) {
+ if (this.finishCondition_(event)) {
+ this.finishDrawing();
+ }
+ } else {
+ this.addToDrawing_(event.coordinate);
+ }
+
+ pass = false;
+ } else if (this.freehand_) {
+ this.abortDrawing();
+ }
+
+ if (!pass && this.stopClick_) {
+ event.stopPropagation();
+ }
+
+ return pass;
+ };
+ /**
+ * Handle move events.
+ * @param {import("../MapBrowserEvent.js").default} event A move event.
+ * @private
+ */
+
+
+ Draw.prototype.handlePointerMove_ = function (event) {
+ if (this.downPx_ && (!this.freehand_ && this.shouldHandle_ || this.freehand_ && !this.shouldHandle_)) {
+ var downPx = this.downPx_;
+ var clickPx = event.pixel;
+ var dx = downPx[0] - clickPx[0];
+ var dy = downPx[1] - clickPx[1];
+ var squaredDistance = dx * dx + dy * dy;
+ this.shouldHandle_ = this.freehand_ ? squaredDistance > this.squaredClickTolerance_ : squaredDistance <= this.squaredClickTolerance_;
+
+ if (!this.shouldHandle_) {
+ return;
+ }
+ }
+
+ if (this.finishCoordinate_) {
+ this.modifyDrawing_(event);
+ } else {
+ this.createOrUpdateSketchPoint_(event);
+ }
+ };
+ /**
+ * Determine if an event is within the snapping tolerance of the start coord.
+ * @param {import("../MapBrowserEvent.js").default} event Event.
+ * @return {boolean} The event is within the snapping tolerance of the start.
+ * @private
+ */
+
+
+ Draw.prototype.atFinish_ = function (event) {
+ var at = false;
+
+ if (this.sketchFeature_) {
+ var potentiallyDone = false;
+ var potentiallyFinishCoordinates = [this.finishCoordinate_];
+
+ if (this.mode_ === Mode.LINE_STRING) {
+ potentiallyDone = this.sketchCoords_.length > this.minPoints_;
+ } else if (this.mode_ === Mode.POLYGON) {
+ var sketchCoords =
+ /** @type {PolyCoordType} */
+ this.sketchCoords_;
+ potentiallyDone = sketchCoords[0].length > this.minPoints_;
+ potentiallyFinishCoordinates = [sketchCoords[0][0], sketchCoords[0][sketchCoords[0].length - 2]];
+ }
+
+ if (potentiallyDone) {
+ var map = event.map;
+
+ for (var i = 0, ii = potentiallyFinishCoordinates.length; i < ii; i++) {
+ var finishCoordinate = potentiallyFinishCoordinates[i];
+ var finishPixel = map.getPixelFromCoordinate(finishCoordinate);
+ var pixel = event.pixel;
+ var dx = pixel[0] - finishPixel[0];
+ var dy = pixel[1] - finishPixel[1];
+ var snapTolerance = this.freehand_ ? 1 : this.snapTolerance_;
+ at = Math.sqrt(dx * dx + dy * dy) <= snapTolerance;
+
+ if (at) {
+ this.finishCoordinate_ = finishCoordinate;
+ break;
+ }
+ }
+ }
+ }
+
+ return at;
+ };
+ /**
+ * @param {import("../MapBrowserEvent.js").default} event Event.
+ * @private
+ */
+
+
+ Draw.prototype.createOrUpdateSketchPoint_ = function (event) {
+ var coordinates = event.coordinate.slice();
+
+ if (!this.sketchPoint_) {
+ this.sketchPoint_ = new _Feature.default(new _Point.default(coordinates));
+ this.updateSketchFeatures_();
+ } else {
+ var sketchPointGeom = this.sketchPoint_.getGeometry();
+ sketchPointGeom.setCoordinates(coordinates);
+ }
+ };
+ /**
+ * Start the drawing.
+ * @param {import("../MapBrowserEvent.js").default} event Event.
+ * @private
+ */
+
+
+ Draw.prototype.startDrawing_ = function (event) {
+ var start = event.coordinate;
+ var projection = event.map.getView().getProjection();
+ this.finishCoordinate_ = start;
+
+ if (this.mode_ === Mode.POINT) {
+ this.sketchCoords_ = start.slice();
+ } else if (this.mode_ === Mode.POLYGON) {
+ this.sketchCoords_ = [[start.slice(), start.slice()]];
+ this.sketchLineCoords_ = this.sketchCoords_[0];
+ } else {
+ this.sketchCoords_ = [start.slice(), start.slice()];
+ }
+
+ if (this.sketchLineCoords_) {
+ this.sketchLine_ = new _Feature.default(new _LineString.default(this.sketchLineCoords_));
+ }
+
+ var geometry = this.geometryFunction_(this.sketchCoords_, undefined, projection);
+ this.sketchFeature_ = new _Feature.default();
+
+ if (this.geometryName_) {
+ this.sketchFeature_.setGeometryName(this.geometryName_);
+ }
+
+ this.sketchFeature_.setGeometry(geometry);
+ this.updateSketchFeatures_();
+ this.dispatchEvent(new DrawEvent(DrawEventType.DRAWSTART, this.sketchFeature_));
+ };
+ /**
+ * Modify the drawing.
+ * @param {import("../MapBrowserEvent.js").default} event Event.
+ * @private
+ */
+
+
+ Draw.prototype.modifyDrawing_ = function (event) {
+ var coordinate = event.coordinate;
+ var geometry = this.sketchFeature_.getGeometry();
+ var projection = event.map.getView().getProjection();
+ var coordinates, last;
+
+ if (this.mode_ === Mode.POINT) {
+ last = this.sketchCoords_;
+ } else if (this.mode_ === Mode.POLYGON) {
+ coordinates =
+ /** @type {PolyCoordType} */
+ this.sketchCoords_[0];
+ last = coordinates[coordinates.length - 1];
+
+ if (this.atFinish_(event)) {
+ // snap to finish
+ coordinate = this.finishCoordinate_.slice();
+ }
+ } else {
+ coordinates = this.sketchCoords_;
+ last = coordinates[coordinates.length - 1];
+ }
+
+ last[0] = coordinate[0];
+ last[1] = coordinate[1];
+ this.geometryFunction_(
+ /** @type {!LineCoordType} */
+ this.sketchCoords_, geometry, projection);
+
+ if (this.sketchPoint_) {
+ var sketchPointGeom = this.sketchPoint_.getGeometry();
+ sketchPointGeom.setCoordinates(coordinate);
+ }
+ /** @type {LineString} */
+
+
+ var sketchLineGeom;
+
+ if (geometry.getType() == _GeometryType.default.POLYGON && this.mode_ !== Mode.POLYGON) {
+ if (!this.sketchLine_) {
+ this.sketchLine_ = new _Feature.default();
+ }
+
+ var ring = geometry.getLinearRing(0);
+ sketchLineGeom = this.sketchLine_.getGeometry();
+
+ if (!sketchLineGeom) {
+ sketchLineGeom = new _LineString.default(ring.getFlatCoordinates(), ring.getLayout());
+ this.sketchLine_.setGeometry(sketchLineGeom);
+ } else {
+ sketchLineGeom.setFlatCoordinates(ring.getLayout(), ring.getFlatCoordinates());
+ sketchLineGeom.changed();
+ }
+ } else if (this.sketchLineCoords_) {
+ sketchLineGeom = this.sketchLine_.getGeometry();
+ sketchLineGeom.setCoordinates(this.sketchLineCoords_);
+ }
+
+ this.updateSketchFeatures_();
+ };
+ /**
+ * Add a new coordinate to the drawing.
+ * @param {!PointCoordType} coordinate Coordinate
+ * @private
+ */
+
+
+ Draw.prototype.addToDrawing_ = function (coordinate) {
+ var geometry = this.sketchFeature_.getGeometry();
+ var projection = this.getMap().getView().getProjection();
+ var done;
+ var coordinates;
+
+ if (this.mode_ === Mode.LINE_STRING) {
+ this.finishCoordinate_ = coordinate.slice();
+ coordinates =
+ /** @type {LineCoordType} */
+ this.sketchCoords_;
+
+ if (coordinates.length >= this.maxPoints_) {
+ if (this.freehand_) {
+ coordinates.pop();
+ } else {
+ done = true;
+ }
+ }
+
+ coordinates.push(coordinate.slice());
+ this.geometryFunction_(coordinates, geometry, projection);
+ } else if (this.mode_ === Mode.POLYGON) {
+ coordinates =
+ /** @type {PolyCoordType} */
+ this.sketchCoords_[0];
+
+ if (coordinates.length >= this.maxPoints_) {
+ if (this.freehand_) {
+ coordinates.pop();
+ } else {
+ done = true;
+ }
+ }
+
+ coordinates.push(coordinate.slice());
+
+ if (done) {
+ this.finishCoordinate_ = coordinates[0];
+ }
+
+ this.geometryFunction_(this.sketchCoords_, geometry, projection);
+ }
+
+ this.updateSketchFeatures_();
+
+ if (done) {
+ this.finishDrawing();
+ }
+ };
+ /**
+ * Remove last point of the feature currently being drawn.
+ * @api
+ */
+
+
+ Draw.prototype.removeLastPoint = function () {
+ if (!this.sketchFeature_) {
+ return;
+ }
+
+ var geometry = this.sketchFeature_.getGeometry();
+ var projection = this.getMap().getView().getProjection();
+ var coordinates;
+ /** @type {LineString} */
+
+ var sketchLineGeom;
+
+ if (this.mode_ === Mode.LINE_STRING) {
+ coordinates =
+ /** @type {LineCoordType} */
+ this.sketchCoords_;
+ coordinates.splice(-2, 1);
+ this.geometryFunction_(coordinates, geometry, projection);
+
+ if (coordinates.length >= 2) {
+ this.finishCoordinate_ = coordinates[coordinates.length - 2].slice();
+ }
+ } else if (this.mode_ === Mode.POLYGON) {
+ coordinates =
+ /** @type {PolyCoordType} */
+ this.sketchCoords_[0];
+ coordinates.splice(-2, 1);
+ sketchLineGeom = this.sketchLine_.getGeometry();
+ sketchLineGeom.setCoordinates(coordinates);
+ this.geometryFunction_(this.sketchCoords_, geometry, projection);
+ }
+
+ if (coordinates.length === 0) {
+ this.abortDrawing();
+ }
+
+ this.updateSketchFeatures_();
+ };
+ /**
+ * Stop drawing and add the sketch feature to the target layer.
+ * The {@link module:ol/interaction/Draw~DrawEventType.DRAWEND} event is
+ * dispatched before inserting the feature.
+ * @api
+ */
+
+
+ Draw.prototype.finishDrawing = function () {
+ var sketchFeature = this.abortDrawing_();
+
+ if (!sketchFeature) {
+ return;
+ }
+
+ var coordinates = this.sketchCoords_;
+ var geometry = sketchFeature.getGeometry();
+ var projection = this.getMap().getView().getProjection();
+
+ if (this.mode_ === Mode.LINE_STRING) {
+ // remove the redundant last point
+ coordinates.pop();
+ this.geometryFunction_(coordinates, geometry, projection);
+ } else if (this.mode_ === Mode.POLYGON) {
+ // remove the redundant last point in ring
+
+ /** @type {PolyCoordType} */
+ coordinates[0].pop();
+ this.geometryFunction_(coordinates, geometry, projection);
+ coordinates = geometry.getCoordinates();
+ } // cast multi-part geometries
+
+
+ if (this.type_ === _GeometryType.default.MULTI_POINT) {
+ sketchFeature.setGeometry(new _MultiPoint.default([
+ /** @type {PointCoordType} */
+ coordinates]));
+ } else if (this.type_ === _GeometryType.default.MULTI_LINE_STRING) {
+ sketchFeature.setGeometry(new _MultiLineString.default([
+ /** @type {LineCoordType} */
+ coordinates]));
+ } else if (this.type_ === _GeometryType.default.MULTI_POLYGON) {
+ sketchFeature.setGeometry(new _MultiPolygon.default([
+ /** @type {PolyCoordType} */
+ coordinates]));
+ } // First dispatch event to allow full set up of feature
+
+
+ this.dispatchEvent(new DrawEvent(DrawEventType.DRAWEND, sketchFeature)); // Then insert feature
+
+ if (this.features_) {
+ this.features_.push(sketchFeature);
+ }
+
+ if (this.source_) {
+ this.source_.addFeature(sketchFeature);
+ }
+ };
+ /**
+ * Stop drawing without adding the sketch feature to the target layer.
+ * @return {Feature} The sketch feature (or null if none).
+ * @private
+ */
+
+
+ Draw.prototype.abortDrawing_ = function () {
+ this.finishCoordinate_ = null;
+ var sketchFeature = this.sketchFeature_;
+ this.sketchFeature_ = null;
+ this.sketchPoint_ = null;
+ this.sketchLine_ = null;
+ this.overlay_.getSource().clear(true);
+ return sketchFeature;
+ };
+ /**
+ * Stop drawing without adding the sketch feature to the target layer.
+ * @api
+ */
+
+
+ Draw.prototype.abortDrawing = function () {
+ var sketchFeature = this.abortDrawing_();
+
+ if (sketchFeature) {
+ this.dispatchEvent(new DrawEvent(DrawEventType.DRAWABORT, sketchFeature));
+ }
+ };
+ /**
+ * Append coordinates to the end of the geometry that is currently being drawn.
+ * This can be used when drawing LineStrings or Polygons. Coordinates will
+ * either be appended to the current LineString or the outer ring of the current
+ * Polygon.
+ * @param {!LineCoordType} coordinates Linear coordinates to be appended into
+ * the coordinate array.
+ * @api
+ */
+
+
+ Draw.prototype.appendCoordinates = function (coordinates) {
+ var mode = this.mode_;
+ var sketchCoords = [];
+
+ if (mode === Mode.LINE_STRING) {
+ sketchCoords =
+ /** @type {LineCoordType} */
+ this.sketchCoords_;
+ } else if (mode === Mode.POLYGON) {
+ sketchCoords = this.sketchCoords_ && this.sketchCoords_.length ?
+ /** @type {PolyCoordType} */
+ this.sketchCoords_[0] : [];
+ } // Remove last coordinate from sketch drawing (this coordinate follows cursor position)
+
+
+ var ending = sketchCoords.pop(); // Append coordinate list
+
+ for (var i = 0; i < coordinates.length; i++) {
+ this.addToDrawing_(coordinates[i]);
+ } // Duplicate last coordinate for sketch drawing
+
+
+ this.addToDrawing_(ending);
+ };
+ /**
+ * Initiate draw mode by starting from an existing geometry which will
+ * receive new additional points. This only works on features with
+ * `LineString` geometries, where the interaction will extend lines by adding
+ * points to the end of the coordinates array.
+ * This will change the original feature, instead of drawing a copy.
+ *
+ * The function will dispatch a `drawstart` event.
+ *
+ * @param {!Feature<LineString>} feature Feature to be extended.
+ * @api
+ */
+
+
+ Draw.prototype.extend = function (feature) {
+ var geometry = feature.getGeometry();
+ var lineString = geometry;
+ this.sketchFeature_ = feature;
+ this.sketchCoords_ = lineString.getCoordinates();
+ var last = this.sketchCoords_[this.sketchCoords_.length - 1];
+ this.finishCoordinate_ = last.slice();
+ this.sketchCoords_.push(last.slice());
+ this.updateSketchFeatures_();
+ this.dispatchEvent(new DrawEvent(DrawEventType.DRAWSTART, this.sketchFeature_));
+ };
+ /**
+ * Redraw the sketch features.
+ * @private
+ */
+
+
+ Draw.prototype.updateSketchFeatures_ = function () {
+ var sketchFeatures = [];
+
+ if (this.sketchFeature_) {
+ sketchFeatures.push(this.sketchFeature_);
+ }
+
+ if (this.sketchLine_) {
+ sketchFeatures.push(this.sketchLine_);
+ }
+
+ if (this.sketchPoint_) {
+ sketchFeatures.push(this.sketchPoint_);
+ }
+
+ var overlaySource = this.overlay_.getSource();
+ overlaySource.clear(true);
+ overlaySource.addFeatures(sketchFeatures);
+ };
+ /**
+ * @private
+ */
+
+
+ Draw.prototype.updateState_ = function () {
+ var map = this.getMap();
+ var active = this.getActive();
+
+ if (!map || !active) {
+ this.abortDrawing();
+ }
+
+ this.overlay_.setMap(active ? map : null);
+ };
+
+ return Draw;
+}(_Pointer.default);
+/**
+ * @return {import("../style/Style.js").StyleFunction} Styles.
+ */
+
+
+function getDefaultStyleFunction() {
+ var styles = (0, _Style.createEditingStyle)();
+ return function (feature, resolution) {
+ return styles[feature.getGeometry().getType()];
+ };
+}
+/**
+ * Create a `geometryFunction` for `type: 'Circle'` that will create a regular
+ * polygon with a user specified number of sides and start angle instead of an
+ * `import("../geom/Circle.js").Circle` geometry.
+ * @param {number=} opt_sides Number of sides of the regular polygon. Default is
+ * 32.
+ * @param {number=} opt_angle Angle of the first point in radians. 0 means East.
+ * Default is the angle defined by the heading from the center of the
+ * regular polygon to the current pointer position.
+ * @return {GeometryFunction} Function that draws a
+ * polygon.
+ * @api
+ */
+
+
+function createRegularPolygon(opt_sides, opt_angle) {
+ return function (coordinates, opt_geometry, projection) {
+ var center = (0, _proj.fromUserCoordinate)(
+ /** @type {LineCoordType} */
+ coordinates[0], projection);
+ var end = (0, _proj.fromUserCoordinate)(
+ /** @type {LineCoordType} */
+ coordinates[1], projection);
+ var radius = Math.sqrt((0, _coordinate.squaredDistance)(center, end));
+ var geometry = opt_geometry ?
+ /** @type {Polygon} */
+ opt_geometry : (0, _Polygon.fromCircle)(new _Circle.default(center), opt_sides);
+ var angle = opt_angle;
+
+ if (!opt_angle) {
+ var x = end[0] - center[0];
+ var y = end[1] - center[1];
+ angle = Math.atan(y / x) - (x < 0 ? Math.PI : 0);
+ }
+
+ (0, _Polygon.makeRegular)(geometry, center, radius, angle);
+ var userProjection = (0, _proj.getUserProjection)();
+
+ if (userProjection) {
+ geometry.transform(projection, userProjection);
+ }
+
+ return geometry;
+ };
+}
+/**
+ * Create a `geometryFunction` that will create a box-shaped polygon (aligned
+ * with the coordinate system axes). Use this with the draw interaction and
+ * `type: 'Circle'` to return a box instead of a circle geometry.
+ * @return {GeometryFunction} Function that draws a box-shaped polygon.
+ * @api
+ */
+
+
+function createBox() {
+ return function (coordinates, opt_geometry, projection) {
+ var extent = (0, _extent.boundingExtent)(
+ /** @type {LineCoordType} */
+ coordinates.map(function (coordinate) {
+ return (0, _proj.fromUserCoordinate)(coordinate, projection);
+ }));
+ var boxCoordinates = [[(0, _extent.getBottomLeft)(extent), (0, _extent.getBottomRight)(extent), (0, _extent.getTopRight)(extent), (0, _extent.getTopLeft)(extent), (0, _extent.getBottomLeft)(extent)]];
+ var geometry = opt_geometry;
+
+ if (geometry) {
+ geometry.setCoordinates(boxCoordinates);
+ } else {
+ geometry = new _Polygon.default(boxCoordinates);
+ }
+
+ var userProjection = (0, _proj.getUserProjection)();
+
+ if (userProjection) {
+ geometry.transform(projection, userProjection);
+ }
+
+ return geometry;
+ };
+}
+/**
+ * Get the drawing mode. The mode for mult-part geometries is the same as for
+ * their single-part cousins.
+ * @param {import("../geom/GeometryType.js").default} type Geometry type.
+ * @return {Mode} Drawing mode.
+ */
+
+
+function getMode(type) {
+ var mode;
+
+ if (type === _GeometryType.default.POINT || type === _GeometryType.default.MULTI_POINT) {
+ mode = Mode.POINT;
+ } else if (type === _GeometryType.default.LINE_STRING || type === _GeometryType.default.MULTI_LINE_STRING) {
+ mode = Mode.LINE_STRING;
+ } else if (type === _GeometryType.default.POLYGON || type === _GeometryType.default.MULTI_POLYGON) {
+ mode = Mode.POLYGON;
+ } else if (type === _GeometryType.default.CIRCLE) {
+ mode = Mode.CIRCLE;
+ }
+
+ return (
+ /** @type {!Mode} */
+ mode
+ );
+}
+
+var _default = Draw;
+exports.default = _default;
+},{"../geom/Circle.js":"../../../node_modules/ol/geom/Circle.js","../events/Event.js":"../../../node_modules/ol/events/Event.js","../events/EventType.js":"../../../node_modules/ol/events/EventType.js","../Feature.js":"../../../node_modules/ol/Feature.js","../geom/GeometryType.js":"../../../node_modules/ol/geom/GeometryType.js","./Property.js":"../../../node_modules/ol/interaction/Property.js","../geom/LineString.js":"../../../node_modules/ol/geom/LineString.js","../MapBrowserEvent.js":"../../../node_modules/ol/MapBrowserEvent.js","../MapBrowserEventType.js":"../../../node_modules/ol/MapBrowserEventType.js","../geom/MultiLineString.js":"../../../node_modules/ol/geom/MultiLineString.js","../geom/MultiPoint.js":"../../../node_modules/ol/geom/MultiPoint.js","../geom/MultiPolygon.js":"../../../node_modules/ol/geom/MultiPolygon.js","../geom/Point.js":"../../../node_modules/ol/geom/Point.js","./Pointer.js":"../../../node_modules/ol/interaction/Pointer.js","../geom/Polygon.js":"../../../node_modules/ol/geom/Polygon.js","../layer/Vector.js":"../../../node_modules/ol/layer/Vector.js","../source/Vector.js":"../../../node_modules/ol/source/Vector.js","../functions.js":"../../../node_modules/ol/functions.js","../events/condition.js":"../../../node_modules/ol/events/condition.js","../extent.js":"../../../node_modules/ol/extent.js","../style/Style.js":"../../../node_modules/ol/style/Style.js","../proj.js":"../../../node_modules/ol/proj.js","../Object.js":"../../../node_modules/ol/Object.js","../coordinate.js":"../../../node_modules/ol/coordinate.js"}],"../../../node_modules/ol/interaction/Extent.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Event = _interopRequireDefault(require("../events/Event.js"));
+
+var _Feature = _interopRequireDefault(require("../Feature.js"));
+
+var _GeometryType = _interopRequireDefault(require("../geom/GeometryType.js"));
+
+var _MapBrowserEventType = _interopRequireDefault(require("../MapBrowserEventType.js"));
+
+var _Point = _interopRequireDefault(require("../geom/Point.js"));
+
+var _Pointer = _interopRequireDefault(require("./Pointer.js"));
+
+var _Vector = _interopRequireDefault(require("../layer/Vector.js"));
+
+var _Vector2 = _interopRequireDefault(require("../source/Vector.js"));
+
+var _condition = require("../events/condition.js");
+
+var _extent = require("../extent.js");
+
+var _coordinate = require("../coordinate.js");
+
+var _Style = require("../style/Style.js");
+
+var _Polygon = require("../geom/Polygon.js");
+
+var _proj = require("../proj.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/interaction/Extent
+ */
+
+
+/**
+ * @typedef {Object} Options
+ * @property {import("../events/condition.js").Condition} [condition] A function that
+ * takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a
+ * boolean to indicate whether that event should be handled.
+ * Default is {@link module:ol/events/condition~always}.
+ * @property {import("../extent.js").Extent} [extent] Initial extent. Defaults to no
+ * initial extent.
+ * @property {import("../style/Style.js").StyleLike} [boxStyle]
+ * Style for the drawn extent box. Defaults to
+ * {@link module:ol/style/Style~createEditing()['Polygon']}
+ * @property {number} [pixelTolerance=10] Pixel tolerance for considering the
+ * pointer close enough to a segment or vertex for editing.
+ * @property {import("../style/Style.js").StyleLike} [pointerStyle]
+ * Style for the cursor used to draw the extent. Defaults to
+ * {@link module:ol/style/Style~createEditing()['Point']}
+ * @property {boolean} [wrapX=false] Wrap the drawn extent across multiple maps
+ * in the X direction? Only affects visuals, not functionality.
+ */
+
+/**
+ * @enum {string}
+ */
+var ExtentEventType = {
+ /**
+ * Triggered after the extent is changed
+ * @event ExtentEvent#extentchanged
+ * @api
+ */
+ EXTENTCHANGED: 'extentchanged'
+};
+/**
+ * @classdesc
+ * Events emitted by {@link module:ol/interaction/Extent~Extent} instances are
+ * instances of this type.
+ */
+
+var ExtentEvent =
+/** @class */
+function (_super) {
+ __extends(ExtentEvent, _super);
+ /**
+ * @param {import("../extent.js").Extent} extent the new extent
+ */
+
+
+ function ExtentEvent(extent) {
+ var _this = _super.call(this, ExtentEventType.EXTENTCHANGED) || this;
+ /**
+ * The current extent.
+ * @type {import("../extent.js").Extent}
+ * @api
+ */
+
+
+ _this.extent = extent;
+ return _this;
+ }
+
+ return ExtentEvent;
+}(_Event.default);
+/**
+ * @classdesc
+ * Allows the user to draw a vector box by clicking and dragging on the map.
+ * Once drawn, the vector box can be modified by dragging its vertices or edges.
+ * This interaction is only supported for mouse devices.
+ *
+ * @fires ExtentEvent
+ * @api
+ */
+
+
+var Extent =
+/** @class */
+function (_super) {
+ __extends(Extent, _super);
+ /**
+ * @param {Options=} opt_options Options.
+ */
+
+
+ function Extent(opt_options) {
+ var _this = this;
+
+ var options = opt_options || {};
+ _this = _super.call(this,
+ /** @type {import("./Pointer.js").Options} */
+ options) || this;
+ /**
+ * Condition
+ * @type {import("../events/condition.js").Condition}
+ * @private
+ */
+
+ _this.condition_ = options.condition ? options.condition : _condition.always;
+ /**
+ * Extent of the drawn box
+ * @type {import("../extent.js").Extent}
+ * @private
+ */
+
+ _this.extent_ = null;
+ /**
+ * Handler for pointer move events
+ * @type {function (import("../coordinate.js").Coordinate): import("../extent.js").Extent|null}
+ * @private
+ */
+
+ _this.pointerHandler_ = null;
+ /**
+ * Pixel threshold to snap to extent
+ * @type {number}
+ * @private
+ */
+
+ _this.pixelTolerance_ = options.pixelTolerance !== undefined ? options.pixelTolerance : 10;
+ /**
+ * Is the pointer snapped to an extent vertex
+ * @type {boolean}
+ * @private
+ */
+
+ _this.snappedToVertex_ = false;
+ /**
+ * Feature for displaying the visible extent
+ * @type {Feature}
+ * @private
+ */
+
+ _this.extentFeature_ = null;
+ /**
+ * Feature for displaying the visible pointer
+ * @type {Feature<Point>}
+ * @private
+ */
+
+ _this.vertexFeature_ = null;
+
+ if (!opt_options) {
+ opt_options = {};
+ }
+ /**
+ * Layer for the extentFeature
+ * @type {VectorLayer}
+ * @private
+ */
+
+
+ _this.extentOverlay_ = new _Vector.default({
+ source: new _Vector2.default({
+ useSpatialIndex: false,
+ wrapX: !!opt_options.wrapX
+ }),
+ style: opt_options.boxStyle ? opt_options.boxStyle : getDefaultExtentStyleFunction(),
+ updateWhileAnimating: true,
+ updateWhileInteracting: true
+ });
+ /**
+ * Layer for the vertexFeature
+ * @type {VectorLayer}
+ * @private
+ */
+
+ _this.vertexOverlay_ = new _Vector.default({
+ source: new _Vector2.default({
+ useSpatialIndex: false,
+ wrapX: !!opt_options.wrapX
+ }),
+ style: opt_options.pointerStyle ? opt_options.pointerStyle : getDefaultPointerStyleFunction(),
+ updateWhileAnimating: true,
+ updateWhileInteracting: true
+ });
+
+ if (opt_options.extent) {
+ _this.setExtent(opt_options.extent);
+ }
+
+ return _this;
+ }
+ /**
+ * @param {import("../pixel.js").Pixel} pixel cursor location
+ * @param {import("../PluggableMap.js").default} map map
+ * @returns {import("../coordinate.js").Coordinate|null} snapped vertex on extent
+ * @private
+ */
+
+
+ Extent.prototype.snapToVertex_ = function (pixel, map) {
+ var pixelCoordinate = map.getCoordinateFromPixelInternal(pixel);
+
+ var sortByDistance = function (a, b) {
+ return (0, _coordinate.squaredDistanceToSegment)(pixelCoordinate, a) - (0, _coordinate.squaredDistanceToSegment)(pixelCoordinate, b);
+ };
+
+ var extent = this.getExtentInternal();
+
+ if (extent) {
+ //convert extents to line segments and find the segment closest to pixelCoordinate
+ var segments = getSegments(extent);
+ segments.sort(sortByDistance);
+ var closestSegment = segments[0];
+ var vertex = (0, _coordinate.closestOnSegment)(pixelCoordinate, closestSegment);
+ var vertexPixel = map.getPixelFromCoordinateInternal(vertex); //if the distance is within tolerance, snap to the segment
+
+ if ((0, _coordinate.distance)(pixel, vertexPixel) <= this.pixelTolerance_) {
+ //test if we should further snap to a vertex
+ var pixel1 = map.getPixelFromCoordinateInternal(closestSegment[0]);
+ var pixel2 = map.getPixelFromCoordinateInternal(closestSegment[1]);
+ var squaredDist1 = (0, _coordinate.squaredDistance)(vertexPixel, pixel1);
+ var squaredDist2 = (0, _coordinate.squaredDistance)(vertexPixel, pixel2);
+ var dist = Math.sqrt(Math.min(squaredDist1, squaredDist2));
+ this.snappedToVertex_ = dist <= this.pixelTolerance_;
+
+ if (this.snappedToVertex_) {
+ vertex = squaredDist1 > squaredDist2 ? closestSegment[1] : closestSegment[0];
+ }
+
+ return vertex;
+ }
+ }
+
+ return null;
+ };
+ /**
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent pointer move event
+ * @private
+ */
+
+
+ Extent.prototype.handlePointerMove_ = function (mapBrowserEvent) {
+ var pixel = mapBrowserEvent.pixel;
+ var map = mapBrowserEvent.map;
+ var vertex = this.snapToVertex_(pixel, map);
+
+ if (!vertex) {
+ vertex = map.getCoordinateFromPixelInternal(pixel);
+ }
+
+ this.createOrUpdatePointerFeature_(vertex);
+ };
+ /**
+ * @param {import("../extent.js").Extent} extent extent
+ * @returns {Feature} extent as featrue
+ * @private
+ */
+
+
+ Extent.prototype.createOrUpdateExtentFeature_ = function (extent) {
+ var extentFeature = this.extentFeature_;
+
+ if (!extentFeature) {
+ if (!extent) {
+ extentFeature = new _Feature.default({});
+ } else {
+ extentFeature = new _Feature.default((0, _Polygon.fromExtent)(extent));
+ }
+
+ this.extentFeature_ = extentFeature;
+ this.extentOverlay_.getSource().addFeature(extentFeature);
+ } else {
+ if (!extent) {
+ extentFeature.setGeometry(undefined);
+ } else {
+ extentFeature.setGeometry((0, _Polygon.fromExtent)(extent));
+ }
+ }
+
+ return extentFeature;
+ };
+ /**
+ * @param {import("../coordinate.js").Coordinate} vertex location of feature
+ * @returns {Feature} vertex as feature
+ * @private
+ */
+
+
+ Extent.prototype.createOrUpdatePointerFeature_ = function (vertex) {
+ var vertexFeature = this.vertexFeature_;
+
+ if (!vertexFeature) {
+ vertexFeature = new _Feature.default(new _Point.default(vertex));
+ this.vertexFeature_ = vertexFeature;
+ this.vertexOverlay_.getSource().addFeature(vertexFeature);
+ } else {
+ var geometry = vertexFeature.getGeometry();
+ geometry.setCoordinates(vertex);
+ }
+
+ return vertexFeature;
+ };
+ /**
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Map browser event.
+ * @return {boolean} `false` to stop event propagation.
+ */
+
+
+ Extent.prototype.handleEvent = function (mapBrowserEvent) {
+ if (!mapBrowserEvent.originalEvent || !this.condition_(mapBrowserEvent)) {
+ return true;
+ } //display pointer (if not dragging)
+
+
+ if (mapBrowserEvent.type == _MapBrowserEventType.default.POINTERMOVE && !this.handlingDownUpSequence) {
+ this.handlePointerMove_(mapBrowserEvent);
+ } //call pointer to determine up/down/drag
+
+
+ _super.prototype.handleEvent.call(this, mapBrowserEvent); //return false to stop propagation
+
+
+ return false;
+ };
+ /**
+ * Handle pointer down events.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Event.
+ * @return {boolean} If the event was consumed.
+ */
+
+
+ Extent.prototype.handleDownEvent = function (mapBrowserEvent) {
+ var pixel = mapBrowserEvent.pixel;
+ var map = mapBrowserEvent.map;
+ var extent = this.getExtentInternal();
+ var vertex = this.snapToVertex_(pixel, map); //find the extent corner opposite the passed corner
+
+ var getOpposingPoint = function (point) {
+ var x_ = null;
+ var y_ = null;
+
+ if (point[0] == extent[0]) {
+ x_ = extent[2];
+ } else if (point[0] == extent[2]) {
+ x_ = extent[0];
+ }
+
+ if (point[1] == extent[1]) {
+ y_ = extent[3];
+ } else if (point[1] == extent[3]) {
+ y_ = extent[1];
+ }
+
+ if (x_ !== null && y_ !== null) {
+ return [x_, y_];
+ }
+
+ return null;
+ };
+
+ if (vertex && extent) {
+ var x = vertex[0] == extent[0] || vertex[0] == extent[2] ? vertex[0] : null;
+ var y = vertex[1] == extent[1] || vertex[1] == extent[3] ? vertex[1] : null; //snap to point
+
+ if (x !== null && y !== null) {
+ this.pointerHandler_ = getPointHandler(getOpposingPoint(vertex)); //snap to edge
+ } else if (x !== null) {
+ this.pointerHandler_ = getEdgeHandler(getOpposingPoint([x, extent[1]]), getOpposingPoint([x, extent[3]]));
+ } else if (y !== null) {
+ this.pointerHandler_ = getEdgeHandler(getOpposingPoint([extent[0], y]), getOpposingPoint([extent[2], y]));
+ } //no snap - new bbox
+
+ } else {
+ vertex = map.getCoordinateFromPixelInternal(pixel);
+ this.setExtent([vertex[0], vertex[1], vertex[0], vertex[1]]);
+ this.pointerHandler_ = getPointHandler(vertex);
+ }
+
+ return true; //event handled; start downup sequence
+ };
+ /**
+ * Handle pointer drag events.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Event.
+ */
+
+
+ Extent.prototype.handleDragEvent = function (mapBrowserEvent) {
+ if (this.pointerHandler_) {
+ var pixelCoordinate = mapBrowserEvent.coordinate;
+ this.setExtent(this.pointerHandler_(pixelCoordinate));
+ this.createOrUpdatePointerFeature_(pixelCoordinate);
+ }
+ };
+ /**
+ * Handle pointer up events.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Event.
+ * @return {boolean} If the event was consumed.
+ */
+
+
+ Extent.prototype.handleUpEvent = function (mapBrowserEvent) {
+ this.pointerHandler_ = null; //If bbox is zero area, set to null;
+
+ var extent = this.getExtentInternal();
+
+ if (!extent || (0, _extent.getArea)(extent) === 0) {
+ this.setExtent(null);
+ }
+
+ return false; //Stop handling downup sequence
+ };
+ /**
+ * Remove the interaction from its current map and attach it to the new map.
+ * Subclasses may set up event handlers to get notified about changes to
+ * the map here.
+ * @param {import("../PluggableMap.js").default} map Map.
+ */
+
+
+ Extent.prototype.setMap = function (map) {
+ this.extentOverlay_.setMap(map);
+ this.vertexOverlay_.setMap(map);
+
+ _super.prototype.setMap.call(this, map);
+ };
+ /**
+ * Returns the current drawn extent in the view projection (or user projection if set)
+ *
+ * @return {import("../extent.js").Extent} Drawn extent in the view projection.
+ * @api
+ */
+
+
+ Extent.prototype.getExtent = function () {
+ return (0, _proj.toUserExtent)(this.getExtentInternal(), this.getMap().getView().getProjection());
+ };
+ /**
+ * Returns the current drawn extent in the view projection
+ *
+ * @return {import("../extent.js").Extent} Drawn extent in the view projection.
+ * @api
+ */
+
+
+ Extent.prototype.getExtentInternal = function () {
+ return this.extent_;
+ };
+ /**
+ * Manually sets the drawn extent, using the view projection.
+ *
+ * @param {import("../extent.js").Extent} extent Extent
+ * @api
+ */
+
+
+ Extent.prototype.setExtent = function (extent) {
+ //Null extent means no bbox
+ this.extent_ = extent ? extent : null;
+ this.createOrUpdateExtentFeature_(extent);
+ this.dispatchEvent(new ExtentEvent(this.extent_));
+ };
+
+ return Extent;
+}(_Pointer.default);
+/**
+ * Returns the default style for the drawn bbox
+ *
+ * @return {import("../style/Style.js").StyleFunction} Default Extent style
+ */
+
+
+function getDefaultExtentStyleFunction() {
+ var style = (0, _Style.createEditingStyle)();
+ return function (feature, resolution) {
+ return style[_GeometryType.default.POLYGON];
+ };
+}
+/**
+ * Returns the default style for the pointer
+ *
+ * @return {import("../style/Style.js").StyleFunction} Default pointer style
+ */
+
+
+function getDefaultPointerStyleFunction() {
+ var style = (0, _Style.createEditingStyle)();
+ return function (feature, resolution) {
+ return style[_GeometryType.default.POINT];
+ };
+}
+/**
+ * @param {import("../coordinate.js").Coordinate} fixedPoint corner that will be unchanged in the new extent
+ * @returns {function (import("../coordinate.js").Coordinate): import("../extent.js").Extent} event handler
+ */
+
+
+function getPointHandler(fixedPoint) {
+ return function (point) {
+ return (0, _extent.boundingExtent)([fixedPoint, point]);
+ };
+}
+/**
+ * @param {import("../coordinate.js").Coordinate} fixedP1 first corner that will be unchanged in the new extent
+ * @param {import("../coordinate.js").Coordinate} fixedP2 second corner that will be unchanged in the new extent
+ * @returns {function (import("../coordinate.js").Coordinate): import("../extent.js").Extent|null} event handler
+ */
+
+
+function getEdgeHandler(fixedP1, fixedP2) {
+ if (fixedP1[0] == fixedP2[0]) {
+ return function (point) {
+ return (0, _extent.boundingExtent)([fixedP1, [point[0], fixedP2[1]]]);
+ };
+ } else if (fixedP1[1] == fixedP2[1]) {
+ return function (point) {
+ return (0, _extent.boundingExtent)([fixedP1, [fixedP2[0], point[1]]]);
+ };
+ } else {
+ return null;
+ }
+}
+/**
+ * @param {import("../extent.js").Extent} extent extent
+ * @returns {Array<Array<import("../coordinate.js").Coordinate>>} extent line segments
+ */
+
+
+function getSegments(extent) {
+ return [[[extent[0], extent[1]], [extent[0], extent[3]]], [[extent[0], extent[3]], [extent[2], extent[3]]], [[extent[2], extent[3]], [extent[2], extent[1]]], [[extent[2], extent[1]], [extent[0], extent[1]]]];
+}
+
+var _default = Extent;
+exports.default = _default;
+},{"../events/Event.js":"../../../node_modules/ol/events/Event.js","../Feature.js":"../../../node_modules/ol/Feature.js","../geom/GeometryType.js":"../../../node_modules/ol/geom/GeometryType.js","../MapBrowserEventType.js":"../../../node_modules/ol/MapBrowserEventType.js","../geom/Point.js":"../../../node_modules/ol/geom/Point.js","./Pointer.js":"../../../node_modules/ol/interaction/Pointer.js","../layer/Vector.js":"../../../node_modules/ol/layer/Vector.js","../source/Vector.js":"../../../node_modules/ol/source/Vector.js","../events/condition.js":"../../../node_modules/ol/events/condition.js","../extent.js":"../../../node_modules/ol/extent.js","../coordinate.js":"../../../node_modules/ol/coordinate.js","../style/Style.js":"../../../node_modules/ol/style/Style.js","../geom/Polygon.js":"../../../node_modules/ol/geom/Polygon.js","../proj.js":"../../../node_modules/ol/proj.js"}],"../../../node_modules/ol/interaction/Modify.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = exports.ModifyEvent = void 0;
+
+var _Collection = _interopRequireDefault(require("../Collection.js"));
+
+var _CollectionEventType = _interopRequireDefault(require("../CollectionEventType.js"));
+
+var _Event = _interopRequireDefault(require("../events/Event.js"));
+
+var _EventType = _interopRequireDefault(require("../events/EventType.js"));
+
+var _Feature = _interopRequireDefault(require("../Feature.js"));
+
+var _GeometryType = _interopRequireDefault(require("../geom/GeometryType.js"));
+
+var _MapBrowserEventType = _interopRequireDefault(require("../MapBrowserEventType.js"));
+
+var _Point = _interopRequireDefault(require("../geom/Point.js"));
+
+var _Pointer = _interopRequireDefault(require("./Pointer.js"));
+
+var _RBush = _interopRequireDefault(require("../structs/RBush.js"));
+
+var _VectorEventType = _interopRequireDefault(require("../source/VectorEventType.js"));
+
+var _Vector = _interopRequireDefault(require("../layer/Vector.js"));
+
+var _Vector2 = _interopRequireDefault(require("../source/Vector.js"));
+
+var _condition = require("../events/condition.js");
+
+var _extent = require("../extent.js");
+
+var _coordinate = require("../coordinate.js");
+
+var _Style = require("../style/Style.js");
+
+var _array = require("../array.js");
+
+var _Polygon = require("../geom/Polygon.js");
+
+var _proj = require("../proj.js");
+
+var _util = require("../util.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/interaction/Modify
+ */
+
+
+/**
+ * The segment index assigned to a circle's center when
+ * breaking up a circle into ModifySegmentDataType segments.
+ * @type {number}
+ */
+var CIRCLE_CENTER_INDEX = 0;
+/**
+ * The segment index assigned to a circle's circumference when
+ * breaking up a circle into ModifySegmentDataType segments.
+ * @type {number}
+ */
+
+var CIRCLE_CIRCUMFERENCE_INDEX = 1;
+var tempExtent = [0, 0, 0, 0];
+var tempSegment = [];
+/**
+ * @enum {string}
+ */
+
+var ModifyEventType = {
+ /**
+ * Triggered upon feature modification start
+ * @event ModifyEvent#modifystart
+ * @api
+ */
+ MODIFYSTART: 'modifystart',
+
+ /**
+ * Triggered upon feature modification end
+ * @event ModifyEvent#modifyend
+ * @api
+ */
+ MODIFYEND: 'modifyend'
+};
+/**
+ * @typedef {Object} SegmentData
+ * @property {Array<number>} [depth]
+ * @property {Feature} feature
+ * @property {import("../geom/SimpleGeometry.js").default} geometry
+ * @property {number} [index]
+ * @property {Array<import("../extent.js").Extent>} segment
+ * @property {Array<SegmentData>} [featureSegments]
+ */
+
+/**
+ * @typedef {Object} Options
+ * @property {import("../events/condition.js").Condition} [condition] A function that
+ * takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a
+ * boolean to indicate whether that event will be considered to add or move a
+ * vertex to the sketch. Default is
+ * {@link module:ol/events/condition~primaryAction}.
+ * @property {import("../events/condition.js").Condition} [deleteCondition] A function
+ * that takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a
+ * boolean to indicate whether that event should be handled. By default,
+ * {@link module:ol/events/condition~singleClick} with
+ * {@link module:ol/events/condition~altKeyOnly} results in a vertex deletion.
+ * @property {import("../events/condition.js").Condition} [insertVertexCondition] A
+ * function that takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and
+ * returns a boolean to indicate whether a new vertex should be added to the sketch
+ * features. Default is {@link module:ol/events/condition~always}.
+ * @property {number} [pixelTolerance=10] Pixel tolerance for considering the
+ * pointer close enough to a segment or vertex for editing.
+ * @property {import("../style/Style.js").StyleLike} [style]
+ * Style used for the features being modified. By default the default edit
+ * style is used (see {@link module:ol/style}).
+ * @property {VectorSource} [source] The vector source with
+ * features to modify. If a vector source is not provided, a feature collection
+ * must be provided with the features option.
+ * @property {Collection<Feature>} [features]
+ * The features the interaction works on. If a feature collection is not
+ * provided, a vector source must be provided with the source option.
+ * @property {boolean} [wrapX=false] Wrap the world horizontally on the sketch
+ * overlay.
+ */
+
+/**
+ * @classdesc
+ * Events emitted by {@link module:ol/interaction/Modify~Modify} instances are
+ * instances of this type.
+ */
+
+var ModifyEvent =
+/** @class */
+function (_super) {
+ __extends(ModifyEvent, _super);
+ /**
+ * @param {ModifyEventType} type Type.
+ * @param {Collection<Feature>} features
+ * The features modified.
+ * @param {import("../MapBrowserEvent.js").default} MapBrowserEvent
+ * Associated {@link module:ol/MapBrowserEvent}.
+ */
+
+
+ function ModifyEvent(type, features, MapBrowserEvent) {
+ var _this = _super.call(this, type) || this;
+ /**
+ * The features being modified.
+ * @type {Collection<Feature>}
+ * @api
+ */
+
+
+ _this.features = features;
+ /**
+ * Associated {@link module:ol/MapBrowserEvent}.
+ * @type {import("../MapBrowserEvent.js").default}
+ * @api
+ */
+
+ _this.mapBrowserEvent = MapBrowserEvent;
+ return _this;
+ }
+
+ return ModifyEvent;
+}(_Event.default);
+
+exports.ModifyEvent = ModifyEvent;
+
+/**
+ * @classdesc
+ * Interaction for modifying feature geometries. To modify features that have
+ * been added to an existing source, construct the modify interaction with the
+ * `source` option. If you want to modify features in a collection (for example,
+ * the collection used by a select interaction), construct the interaction with
+ * the `features` option. The interaction must be constructed with either a
+ * `source` or `features` option.
+ *
+ * By default, the interaction will allow deletion of vertices when the `alt`
+ * key is pressed. To configure the interaction with a different condition
+ * for deletion, use the `deleteCondition` option.
+ * @fires ModifyEvent
+ * @api
+ */
+var Modify =
+/** @class */
+function (_super) {
+ __extends(Modify, _super);
+ /**
+ * @param {Options} options Options.
+ */
+
+
+ function Modify(options) {
+ var _this = _super.call(this,
+ /** @type {import("./Pointer.js").Options} */
+ options) || this;
+ /** @private */
+
+
+ _this.boundHandleFeatureChange_ = _this.handleFeatureChange_.bind(_this);
+ /**
+ * @private
+ * @type {import("../events/condition.js").Condition}
+ */
+
+ _this.condition_ = options.condition ? options.condition : _condition.primaryAction;
+ /**
+ * @private
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Browser event.
+ * @return {boolean} Combined condition result.
+ */
+
+ _this.defaultDeleteCondition_ = function (mapBrowserEvent) {
+ return (0, _condition.altKeyOnly)(mapBrowserEvent) && (0, _condition.singleClick)(mapBrowserEvent);
+ };
+ /**
+ * @type {import("../events/condition.js").Condition}
+ * @private
+ */
+
+
+ _this.deleteCondition_ = options.deleteCondition ? options.deleteCondition : _this.defaultDeleteCondition_;
+ /**
+ * @type {import("../events/condition.js").Condition}
+ * @private
+ */
+
+ _this.insertVertexCondition_ = options.insertVertexCondition ? options.insertVertexCondition : _condition.always;
+ /**
+ * Editing vertex.
+ * @type {Feature}
+ * @private
+ */
+
+ _this.vertexFeature_ = null;
+ /**
+ * Segments intersecting {@link this.vertexFeature_} by segment uid.
+ * @type {Object<string, boolean>}
+ * @private
+ */
+
+ _this.vertexSegments_ = null;
+ /**
+ * @type {import("../pixel.js").Pixel}
+ * @private
+ */
+
+ _this.lastPixel_ = [0, 0];
+ /**
+ * Tracks if the next `singleclick` event should be ignored to prevent
+ * accidental deletion right after vertex creation.
+ * @type {boolean}
+ * @private
+ */
+
+ _this.ignoreNextSingleClick_ = false;
+ /**
+ * @type {boolean}
+ * @private
+ */
+
+ _this.modified_ = false;
+ /**
+ * Segment RTree for each layer
+ * @type {RBush<SegmentData>}
+ * @private
+ */
+
+ _this.rBush_ = new _RBush.default();
+ /**
+ * @type {number}
+ * @private
+ */
+
+ _this.pixelTolerance_ = options.pixelTolerance !== undefined ? options.pixelTolerance : 10;
+ /**
+ * @type {boolean}
+ * @private
+ */
+
+ _this.snappedToVertex_ = false;
+ /**
+ * Indicate whether the interaction is currently changing a feature's
+ * coordinates.
+ * @type {boolean}
+ * @private
+ */
+
+ _this.changingFeature_ = false;
+ /**
+ * @type {Array}
+ * @private
+ */
+
+ _this.dragSegments_ = [];
+ /**
+ * Draw overlay where sketch features are drawn.
+ * @type {VectorLayer}
+ * @private
+ */
+
+ _this.overlay_ = new _Vector.default({
+ source: new _Vector2.default({
+ useSpatialIndex: false,
+ wrapX: !!options.wrapX
+ }),
+ style: options.style ? options.style : getDefaultStyleFunction(),
+ updateWhileAnimating: true,
+ updateWhileInteracting: true
+ });
+ /**
+ * @const
+ * @private
+ * @type {!Object<string, function(Feature, import("../geom/Geometry.js").default): void>}
+ */
+
+ _this.SEGMENT_WRITERS_ = {
+ 'Point': _this.writePointGeometry_.bind(_this),
+ 'LineString': _this.writeLineStringGeometry_.bind(_this),
+ 'LinearRing': _this.writeLineStringGeometry_.bind(_this),
+ 'Polygon': _this.writePolygonGeometry_.bind(_this),
+ 'MultiPoint': _this.writeMultiPointGeometry_.bind(_this),
+ 'MultiLineString': _this.writeMultiLineStringGeometry_.bind(_this),
+ 'MultiPolygon': _this.writeMultiPolygonGeometry_.bind(_this),
+ 'Circle': _this.writeCircleGeometry_.bind(_this),
+ 'GeometryCollection': _this.writeGeometryCollectionGeometry_.bind(_this)
+ };
+ /**
+ * @type {VectorSource}
+ * @private
+ */
+
+ _this.source_ = null;
+ var features;
+
+ if (options.source) {
+ _this.source_ = options.source;
+ features = new _Collection.default(_this.source_.getFeatures());
+
+ _this.source_.addEventListener(_VectorEventType.default.ADDFEATURE, _this.handleSourceAdd_.bind(_this));
+
+ _this.source_.addEventListener(_VectorEventType.default.REMOVEFEATURE, _this.handleSourceRemove_.bind(_this));
+ } else {
+ features = options.features;
+ }
+
+ if (!features) {
+ throw new Error('The modify interaction requires features or a source');
+ }
+ /**
+ * @type {Collection<Feature>}
+ * @private
+ */
+
+
+ _this.features_ = features;
+
+ _this.features_.forEach(_this.addFeature_.bind(_this));
+
+ _this.features_.addEventListener(_CollectionEventType.default.ADD, _this.handleFeatureAdd_.bind(_this));
+
+ _this.features_.addEventListener(_CollectionEventType.default.REMOVE, _this.handleFeatureRemove_.bind(_this));
+ /**
+ * @type {import("../MapBrowserEvent.js").default}
+ * @private
+ */
+
+
+ _this.lastPointerEvent_ = null;
+ return _this;
+ }
+ /**
+ * @param {Feature} feature Feature.
+ * @private
+ */
+
+
+ Modify.prototype.addFeature_ = function (feature) {
+ var geometry = feature.getGeometry();
+
+ if (geometry) {
+ var writer = this.SEGMENT_WRITERS_[geometry.getType()];
+
+ if (writer) {
+ writer(feature, geometry);
+ }
+ }
+
+ var map = this.getMap();
+
+ if (map && map.isRendered() && this.getActive()) {
+ this.handlePointerAtPixel_(this.lastPixel_, map);
+ }
+
+ feature.addEventListener(_EventType.default.CHANGE, this.boundHandleFeatureChange_);
+ };
+ /**
+ * @param {import("../MapBrowserEvent.js").default} evt Map browser event
+ * @private
+ */
+
+
+ Modify.prototype.willModifyFeatures_ = function (evt) {
+ if (!this.modified_) {
+ this.modified_ = true;
+ this.dispatchEvent(new ModifyEvent(ModifyEventType.MODIFYSTART, this.features_, evt));
+ }
+ };
+ /**
+ * @param {Feature} feature Feature.
+ * @private
+ */
+
+
+ Modify.prototype.removeFeature_ = function (feature) {
+ this.removeFeatureSegmentData_(feature); // Remove the vertex feature if the collection of canditate features is empty.
+
+ if (this.vertexFeature_ && this.features_.getLength() === 0) {
+ this.overlay_.getSource().removeFeature(this.vertexFeature_);
+ this.vertexFeature_ = null;
+ }
+
+ feature.removeEventListener(_EventType.default.CHANGE, this.boundHandleFeatureChange_);
+ };
+ /**
+ * @param {Feature} feature Feature.
+ * @private
+ */
+
+
+ Modify.prototype.removeFeatureSegmentData_ = function (feature) {
+ var rBush = this.rBush_;
+ /** @type {Array<SegmentData>} */
+
+ var nodesToRemove = [];
+ rBush.forEach(
+ /**
+ * @param {SegmentData} node RTree node.
+ */
+ function (node) {
+ if (feature === node.feature) {
+ nodesToRemove.push(node);
+ }
+ });
+
+ for (var i = nodesToRemove.length - 1; i >= 0; --i) {
+ var nodeToRemove = nodesToRemove[i];
+
+ for (var j = this.dragSegments_.length - 1; j >= 0; --j) {
+ if (this.dragSegments_[j][0] === nodeToRemove) {
+ this.dragSegments_.splice(j, 1);
+ }
+ }
+
+ rBush.remove(nodeToRemove);
+ }
+ };
+ /**
+ * Activate or deactivate the interaction.
+ * @param {boolean} active Active.
+ * @observable
+ * @api
+ */
+
+
+ Modify.prototype.setActive = function (active) {
+ if (this.vertexFeature_ && !active) {
+ this.overlay_.getSource().removeFeature(this.vertexFeature_);
+ this.vertexFeature_ = null;
+ }
+
+ _super.prototype.setActive.call(this, active);
+ };
+ /**
+ * Remove the interaction from its current map and attach it to the new map.
+ * Subclasses may set up event handlers to get notified about changes to
+ * the map here.
+ * @param {import("../PluggableMap.js").default} map Map.
+ */
+
+
+ Modify.prototype.setMap = function (map) {
+ this.overlay_.setMap(map);
+
+ _super.prototype.setMap.call(this, map);
+ };
+ /**
+ * Get the overlay layer that this interaction renders sketch features to.
+ * @return {VectorLayer} Overlay layer.
+ * @api
+ */
+
+
+ Modify.prototype.getOverlay = function () {
+ return this.overlay_;
+ };
+ /**
+ * @param {import("../source/Vector.js").VectorSourceEvent} event Event.
+ * @private
+ */
+
+
+ Modify.prototype.handleSourceAdd_ = function (event) {
+ if (event.feature) {
+ this.features_.push(event.feature);
+ }
+ };
+ /**
+ * @param {import("../source/Vector.js").VectorSourceEvent} event Event.
+ * @private
+ */
+
+
+ Modify.prototype.handleSourceRemove_ = function (event) {
+ if (event.feature) {
+ this.features_.remove(event.feature);
+ }
+ };
+ /**
+ * @param {import("../Collection.js").CollectionEvent} evt Event.
+ * @private
+ */
+
+
+ Modify.prototype.handleFeatureAdd_ = function (evt) {
+ this.addFeature_(
+ /** @type {Feature} */
+ evt.element);
+ };
+ /**
+ * @param {import("../events/Event.js").default} evt Event.
+ * @private
+ */
+
+
+ Modify.prototype.handleFeatureChange_ = function (evt) {
+ if (!this.changingFeature_) {
+ var feature =
+ /** @type {Feature} */
+ evt.target;
+ this.removeFeature_(feature);
+ this.addFeature_(feature);
+ }
+ };
+ /**
+ * @param {import("../Collection.js").CollectionEvent} evt Event.
+ * @private
+ */
+
+
+ Modify.prototype.handleFeatureRemove_ = function (evt) {
+ var feature =
+ /** @type {Feature} */
+ evt.element;
+ this.removeFeature_(feature);
+ };
+ /**
+ * @param {Feature} feature Feature
+ * @param {Point} geometry Geometry.
+ * @private
+ */
+
+
+ Modify.prototype.writePointGeometry_ = function (feature, geometry) {
+ var coordinates = geometry.getCoordinates();
+ /** @type {SegmentData} */
+
+ var segmentData = {
+ feature: feature,
+ geometry: geometry,
+ segment: [coordinates, coordinates]
+ };
+ this.rBush_.insert(geometry.getExtent(), segmentData);
+ };
+ /**
+ * @param {Feature} feature Feature
+ * @param {import("../geom/MultiPoint.js").default} geometry Geometry.
+ * @private
+ */
+
+
+ Modify.prototype.writeMultiPointGeometry_ = function (feature, geometry) {
+ var points = geometry.getCoordinates();
+
+ for (var i = 0, ii = points.length; i < ii; ++i) {
+ var coordinates = points[i];
+ /** @type {SegmentData} */
+
+ var segmentData = {
+ feature: feature,
+ geometry: geometry,
+ depth: [i],
+ index: i,
+ segment: [coordinates, coordinates]
+ };
+ this.rBush_.insert(geometry.getExtent(), segmentData);
+ }
+ };
+ /**
+ * @param {Feature} feature Feature
+ * @param {import("../geom/LineString.js").default} geometry Geometry.
+ * @private
+ */
+
+
+ Modify.prototype.writeLineStringGeometry_ = function (feature, geometry) {
+ var coordinates = geometry.getCoordinates();
+
+ for (var i = 0, ii = coordinates.length - 1; i < ii; ++i) {
+ var segment = coordinates.slice(i, i + 2);
+ /** @type {SegmentData} */
+
+ var segmentData = {
+ feature: feature,
+ geometry: geometry,
+ index: i,
+ segment: segment
+ };
+ this.rBush_.insert((0, _extent.boundingExtent)(segment), segmentData);
+ }
+ };
+ /**
+ * @param {Feature} feature Feature
+ * @param {import("../geom/MultiLineString.js").default} geometry Geometry.
+ * @private
+ */
+
+
+ Modify.prototype.writeMultiLineStringGeometry_ = function (feature, geometry) {
+ var lines = geometry.getCoordinates();
+
+ for (var j = 0, jj = lines.length; j < jj; ++j) {
+ var coordinates = lines[j];
+
+ for (var i = 0, ii = coordinates.length - 1; i < ii; ++i) {
+ var segment = coordinates.slice(i, i + 2);
+ /** @type {SegmentData} */
+
+ var segmentData = {
+ feature: feature,
+ geometry: geometry,
+ depth: [j],
+ index: i,
+ segment: segment
+ };
+ this.rBush_.insert((0, _extent.boundingExtent)(segment), segmentData);
+ }
+ }
+ };
+ /**
+ * @param {Feature} feature Feature
+ * @param {import("../geom/Polygon.js").default} geometry Geometry.
+ * @private
+ */
+
+
+ Modify.prototype.writePolygonGeometry_ = function (feature, geometry) {
+ var rings = geometry.getCoordinates();
+
+ for (var j = 0, jj = rings.length; j < jj; ++j) {
+ var coordinates = rings[j];
+
+ for (var i = 0, ii = coordinates.length - 1; i < ii; ++i) {
+ var segment = coordinates.slice(i, i + 2);
+ /** @type {SegmentData} */
+
+ var segmentData = {
+ feature: feature,
+ geometry: geometry,
+ depth: [j],
+ index: i,
+ segment: segment
+ };
+ this.rBush_.insert((0, _extent.boundingExtent)(segment), segmentData);
+ }
+ }
+ };
+ /**
+ * @param {Feature} feature Feature
+ * @param {import("../geom/MultiPolygon.js").default} geometry Geometry.
+ * @private
+ */
+
+
+ Modify.prototype.writeMultiPolygonGeometry_ = function (feature, geometry) {
+ var polygons = geometry.getCoordinates();
+
+ for (var k = 0, kk = polygons.length; k < kk; ++k) {
+ var rings = polygons[k];
+
+ for (var j = 0, jj = rings.length; j < jj; ++j) {
+ var coordinates = rings[j];
+
+ for (var i = 0, ii = coordinates.length - 1; i < ii; ++i) {
+ var segment = coordinates.slice(i, i + 2);
+ /** @type {SegmentData} */
+
+ var segmentData = {
+ feature: feature,
+ geometry: geometry,
+ depth: [j, k],
+ index: i,
+ segment: segment
+ };
+ this.rBush_.insert((0, _extent.boundingExtent)(segment), segmentData);
+ }
+ }
+ }
+ };
+ /**
+ * We convert a circle into two segments. The segment at index
+ * {@link CIRCLE_CENTER_INDEX} is the
+ * circle's center (a point). The segment at index
+ * {@link CIRCLE_CIRCUMFERENCE_INDEX} is
+ * the circumference, and is not a line segment.
+ *
+ * @param {Feature} feature Feature.
+ * @param {import("../geom/Circle.js").default} geometry Geometry.
+ * @private
+ */
+
+
+ Modify.prototype.writeCircleGeometry_ = function (feature, geometry) {
+ var coordinates = geometry.getCenter();
+ /** @type {SegmentData} */
+
+ var centerSegmentData = {
+ feature: feature,
+ geometry: geometry,
+ index: CIRCLE_CENTER_INDEX,
+ segment: [coordinates, coordinates]
+ };
+ /** @type {SegmentData} */
+
+ var circumferenceSegmentData = {
+ feature: feature,
+ geometry: geometry,
+ index: CIRCLE_CIRCUMFERENCE_INDEX,
+ segment: [coordinates, coordinates]
+ };
+ var featureSegments = [centerSegmentData, circumferenceSegmentData];
+ centerSegmentData.featureSegments = featureSegments;
+ circumferenceSegmentData.featureSegments = featureSegments;
+ this.rBush_.insert((0, _extent.createOrUpdateFromCoordinate)(coordinates), centerSegmentData);
+ var circleGeometry =
+ /** @type {import("../geom/Geometry.js").default} */
+ geometry;
+ var userProjection = (0, _proj.getUserProjection)();
+
+ if (userProjection && this.getMap()) {
+ var projection = this.getMap().getView().getProjection();
+ circleGeometry = circleGeometry.clone().transform(userProjection, projection);
+ circleGeometry = (0, _Polygon.fromCircle)(
+ /** @type {import("../geom/Circle.js").default} */
+ circleGeometry).transform(projection, userProjection);
+ }
+
+ this.rBush_.insert(circleGeometry.getExtent(), circumferenceSegmentData);
+ };
+ /**
+ * @param {Feature} feature Feature
+ * @param {import("../geom/GeometryCollection.js").default} geometry Geometry.
+ * @private
+ */
+
+
+ Modify.prototype.writeGeometryCollectionGeometry_ = function (feature, geometry) {
+ var geometries = geometry.getGeometriesArray();
+
+ for (var i = 0; i < geometries.length; ++i) {
+ var geometry_1 = geometries[i];
+ var writer = this.SEGMENT_WRITERS_[geometry_1.getType()];
+ writer(feature, geometry_1);
+ }
+ };
+ /**
+ * @param {import("../coordinate.js").Coordinate} coordinates Coordinates.
+ * @return {Feature} Vertex feature.
+ * @private
+ */
+
+
+ Modify.prototype.createOrUpdateVertexFeature_ = function (coordinates) {
+ var vertexFeature = this.vertexFeature_;
+
+ if (!vertexFeature) {
+ vertexFeature = new _Feature.default(new _Point.default(coordinates));
+ this.vertexFeature_ = vertexFeature;
+ this.overlay_.getSource().addFeature(vertexFeature);
+ } else {
+ var geometry = vertexFeature.getGeometry();
+ geometry.setCoordinates(coordinates);
+ }
+
+ return vertexFeature;
+ };
+ /**
+ * Handles the {@link module:ol/MapBrowserEvent map browser event} and may modify the geometry.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Map browser event.
+ * @return {boolean} `false` to stop event propagation.
+ */
+
+
+ Modify.prototype.handleEvent = function (mapBrowserEvent) {
+ if (!mapBrowserEvent.originalEvent) {
+ return true;
+ }
+
+ this.lastPointerEvent_ = mapBrowserEvent;
+ var handled;
+
+ if (!mapBrowserEvent.map.getView().getInteracting() && mapBrowserEvent.type == _MapBrowserEventType.default.POINTERMOVE && !this.handlingDownUpSequence) {
+ this.handlePointerMove_(mapBrowserEvent);
+ }
+
+ if (this.vertexFeature_ && this.deleteCondition_(mapBrowserEvent)) {
+ if (mapBrowserEvent.type != _MapBrowserEventType.default.SINGLECLICK || !this.ignoreNextSingleClick_) {
+ handled = this.removePoint();
+ } else {
+ handled = true;
+ }
+ }
+
+ if (mapBrowserEvent.type == _MapBrowserEventType.default.SINGLECLICK) {
+ this.ignoreNextSingleClick_ = false;
+ }
+
+ return _super.prototype.handleEvent.call(this, mapBrowserEvent) && !handled;
+ };
+ /**
+ * Handle pointer drag events.
+ * @param {import("../MapBrowserEvent.js").default} evt Event.
+ */
+
+
+ Modify.prototype.handleDragEvent = function (evt) {
+ this.ignoreNextSingleClick_ = false;
+ this.willModifyFeatures_(evt);
+ var vertex = evt.coordinate;
+
+ for (var i = 0, ii = this.dragSegments_.length; i < ii; ++i) {
+ var dragSegment = this.dragSegments_[i];
+ var segmentData = dragSegment[0];
+ var depth = segmentData.depth;
+ var geometry = segmentData.geometry;
+ var coordinates = void 0;
+ var segment = segmentData.segment;
+ var index = dragSegment[1];
+
+ while (vertex.length < geometry.getStride()) {
+ vertex.push(segment[index][vertex.length]);
+ }
+
+ switch (geometry.getType()) {
+ case _GeometryType.default.POINT:
+ coordinates = vertex;
+ segment[0] = vertex;
+ segment[1] = vertex;
+ break;
+
+ case _GeometryType.default.MULTI_POINT:
+ coordinates = geometry.getCoordinates();
+ coordinates[segmentData.index] = vertex;
+ segment[0] = vertex;
+ segment[1] = vertex;
+ break;
+
+ case _GeometryType.default.LINE_STRING:
+ coordinates = geometry.getCoordinates();
+ coordinates[segmentData.index + index] = vertex;
+ segment[index] = vertex;
+ break;
+
+ case _GeometryType.default.MULTI_LINE_STRING:
+ coordinates = geometry.getCoordinates();
+ coordinates[depth[0]][segmentData.index + index] = vertex;
+ segment[index] = vertex;
+ break;
+
+ case _GeometryType.default.POLYGON:
+ coordinates = geometry.getCoordinates();
+ coordinates[depth[0]][segmentData.index + index] = vertex;
+ segment[index] = vertex;
+ break;
+
+ case _GeometryType.default.MULTI_POLYGON:
+ coordinates = geometry.getCoordinates();
+ coordinates[depth[1]][depth[0]][segmentData.index + index] = vertex;
+ segment[index] = vertex;
+ break;
+
+ case _GeometryType.default.CIRCLE:
+ segment[0] = vertex;
+ segment[1] = vertex;
+
+ if (segmentData.index === CIRCLE_CENTER_INDEX) {
+ this.changingFeature_ = true;
+ geometry.setCenter(vertex);
+ this.changingFeature_ = false;
+ } else {
+ // We're dragging the circle's circumference:
+ this.changingFeature_ = true;
+ var projection = evt.map.getView().getProjection();
+ var radius = (0, _coordinate.distance)((0, _proj.fromUserCoordinate)(geometry.getCenter(), projection), (0, _proj.fromUserCoordinate)(vertex, projection));
+ var userProjection = (0, _proj.getUserProjection)();
+
+ if (userProjection) {
+ var circleGeometry = geometry.clone().transform(userProjection, projection);
+ circleGeometry.setRadius(radius);
+ radius = circleGeometry.transform(projection, userProjection).getRadius();
+ }
+
+ geometry.setRadius(radius);
+ this.changingFeature_ = false;
+ }
+
+ break;
+
+ default: // pass
+
+ }
+
+ if (coordinates) {
+ this.setGeometryCoordinates_(geometry, coordinates);
+ }
+ }
+
+ this.createOrUpdateVertexFeature_(vertex);
+ };
+ /**
+ * Handle pointer down events.
+ * @param {import("../MapBrowserEvent.js").default} evt Event.
+ * @return {boolean} If the event was consumed.
+ */
+
+
+ Modify.prototype.handleDownEvent = function (evt) {
+ if (!this.condition_(evt)) {
+ return false;
+ }
+
+ var pixelCoordinate = evt.coordinate;
+ this.handlePointerAtPixel_(evt.pixel, evt.map, pixelCoordinate);
+ this.dragSegments_.length = 0;
+ this.modified_ = false;
+ var vertexFeature = this.vertexFeature_;
+
+ if (vertexFeature) {
+ var projection = evt.map.getView().getProjection();
+ var insertVertices = [];
+ var vertex = vertexFeature.getGeometry().getCoordinates();
+ var vertexExtent = (0, _extent.boundingExtent)([vertex]);
+ var segmentDataMatches = this.rBush_.getInExtent(vertexExtent);
+ var componentSegments = {};
+ segmentDataMatches.sort(compareIndexes);
+
+ for (var i = 0, ii = segmentDataMatches.length; i < ii; ++i) {
+ var segmentDataMatch = segmentDataMatches[i];
+ var segment = segmentDataMatch.segment;
+ var uid = (0, _util.getUid)(segmentDataMatch.geometry);
+ var depth = segmentDataMatch.depth;
+
+ if (depth) {
+ uid += '-' + depth.join('-'); // separate feature components
+ }
+
+ if (!componentSegments[uid]) {
+ componentSegments[uid] = new Array(2);
+ }
+
+ if (segmentDataMatch.geometry.getType() === _GeometryType.default.CIRCLE && segmentDataMatch.index === CIRCLE_CIRCUMFERENCE_INDEX) {
+ var closestVertex = closestOnSegmentData(pixelCoordinate, segmentDataMatch, projection);
+
+ if ((0, _coordinate.equals)(closestVertex, vertex) && !componentSegments[uid][0]) {
+ this.dragSegments_.push([segmentDataMatch, 0]);
+ componentSegments[uid][0] = segmentDataMatch;
+ }
+
+ continue;
+ }
+
+ if ((0, _coordinate.equals)(segment[0], vertex) && !componentSegments[uid][0]) {
+ this.dragSegments_.push([segmentDataMatch, 0]);
+ componentSegments[uid][0] = segmentDataMatch;
+ continue;
+ }
+
+ if ((0, _coordinate.equals)(segment[1], vertex) && !componentSegments[uid][1]) {
+ // prevent dragging closed linestrings by the connecting node
+ if ((segmentDataMatch.geometry.getType() === _GeometryType.default.LINE_STRING || segmentDataMatch.geometry.getType() === _GeometryType.default.MULTI_LINE_STRING) && componentSegments[uid][0] && componentSegments[uid][0].index === 0) {
+ continue;
+ }
+
+ this.dragSegments_.push([segmentDataMatch, 1]);
+ componentSegments[uid][1] = segmentDataMatch;
+ continue;
+ }
+
+ if ((0, _util.getUid)(segment) in this.vertexSegments_ && !componentSegments[uid][0] && !componentSegments[uid][1] && this.insertVertexCondition_(evt)) {
+ insertVertices.push([segmentDataMatch, vertex]);
+ }
+ }
+
+ if (insertVertices.length) {
+ this.willModifyFeatures_(evt);
+ }
+
+ for (var j = insertVertices.length - 1; j >= 0; --j) {
+ this.insertVertex_.apply(this, insertVertices[j]);
+ }
+ }
+
+ return !!this.vertexFeature_;
+ };
+ /**
+ * Handle pointer up events.
+ * @param {import("../MapBrowserEvent.js").default} evt Event.
+ * @return {boolean} If the event was consumed.
+ */
+
+
+ Modify.prototype.handleUpEvent = function (evt) {
+ for (var i = this.dragSegments_.length - 1; i >= 0; --i) {
+ var segmentData = this.dragSegments_[i][0];
+ var geometry = segmentData.geometry;
+
+ if (geometry.getType() === _GeometryType.default.CIRCLE) {
+ // Update a circle object in the R* bush:
+ var coordinates = geometry.getCenter();
+ var centerSegmentData = segmentData.featureSegments[0];
+ var circumferenceSegmentData = segmentData.featureSegments[1];
+ centerSegmentData.segment[0] = coordinates;
+ centerSegmentData.segment[1] = coordinates;
+ circumferenceSegmentData.segment[0] = coordinates;
+ circumferenceSegmentData.segment[1] = coordinates;
+ this.rBush_.update((0, _extent.createOrUpdateFromCoordinate)(coordinates), centerSegmentData);
+ var circleGeometry = geometry;
+ var userProjection = (0, _proj.getUserProjection)();
+
+ if (userProjection) {
+ var projection = evt.map.getView().getProjection();
+ circleGeometry = circleGeometry.clone().transform(userProjection, projection);
+ circleGeometry = (0, _Polygon.fromCircle)(circleGeometry).transform(projection, userProjection);
+ }
+
+ this.rBush_.update(circleGeometry.getExtent(), circumferenceSegmentData);
+ } else {
+ this.rBush_.update((0, _extent.boundingExtent)(segmentData.segment), segmentData);
+ }
+ }
+
+ if (this.modified_) {
+ this.dispatchEvent(new ModifyEvent(ModifyEventType.MODIFYEND, this.features_, evt));
+ this.modified_ = false;
+ }
+
+ return false;
+ };
+ /**
+ * @param {import("../MapBrowserEvent.js").default} evt Event.
+ * @private
+ */
+
+
+ Modify.prototype.handlePointerMove_ = function (evt) {
+ this.lastPixel_ = evt.pixel;
+ this.handlePointerAtPixel_(evt.pixel, evt.map, evt.coordinate);
+ };
+ /**
+ * @param {import("../pixel.js").Pixel} pixel Pixel
+ * @param {import("../PluggableMap.js").default} map Map.
+ * @param {import("../coordinate.js").Coordinate=} opt_coordinate The pixel Coordinate.
+ * @private
+ */
+
+
+ Modify.prototype.handlePointerAtPixel_ = function (pixel, map, opt_coordinate) {
+ var pixelCoordinate = opt_coordinate || map.getCoordinateFromPixel(pixel);
+ var projection = map.getView().getProjection();
+
+ var sortByDistance = function (a, b) {
+ return projectedDistanceToSegmentDataSquared(pixelCoordinate, a, projection) - projectedDistanceToSegmentDataSquared(pixelCoordinate, b, projection);
+ };
+
+ var viewExtent = (0, _proj.fromUserExtent)((0, _extent.createOrUpdateFromCoordinate)(pixelCoordinate, tempExtent), projection);
+ var buffer = map.getView().getResolution() * this.pixelTolerance_;
+ var box = (0, _proj.toUserExtent)((0, _extent.buffer)(viewExtent, buffer, tempExtent), projection);
+ var rBush = this.rBush_;
+ var nodes = rBush.getInExtent(box);
+
+ if (nodes.length > 0) {
+ nodes.sort(sortByDistance);
+ var node = nodes[0];
+ var closestSegment = node.segment;
+ var vertex = closestOnSegmentData(pixelCoordinate, node, projection);
+ var vertexPixel = map.getPixelFromCoordinate(vertex);
+ var dist = (0, _coordinate.distance)(pixel, vertexPixel);
+
+ if (dist <= this.pixelTolerance_) {
+ /** @type {Object<string, boolean>} */
+ var vertexSegments = {};
+
+ if (node.geometry.getType() === _GeometryType.default.CIRCLE && node.index === CIRCLE_CIRCUMFERENCE_INDEX) {
+ this.snappedToVertex_ = true;
+ this.createOrUpdateVertexFeature_(vertex);
+ } else {
+ var pixel1 = map.getPixelFromCoordinate(closestSegment[0]);
+ var pixel2 = map.getPixelFromCoordinate(closestSegment[1]);
+ var squaredDist1 = (0, _coordinate.squaredDistance)(vertexPixel, pixel1);
+ var squaredDist2 = (0, _coordinate.squaredDistance)(vertexPixel, pixel2);
+ dist = Math.sqrt(Math.min(squaredDist1, squaredDist2));
+ this.snappedToVertex_ = dist <= this.pixelTolerance_;
+
+ if (this.snappedToVertex_) {
+ vertex = squaredDist1 > squaredDist2 ? closestSegment[1] : closestSegment[0];
+ }
+
+ this.createOrUpdateVertexFeature_(vertex);
+
+ for (var i = 1, ii = nodes.length; i < ii; ++i) {
+ var segment = nodes[i].segment;
+
+ if ((0, _coordinate.equals)(closestSegment[0], segment[0]) && (0, _coordinate.equals)(closestSegment[1], segment[1]) || (0, _coordinate.equals)(closestSegment[0], segment[1]) && (0, _coordinate.equals)(closestSegment[1], segment[0])) {
+ vertexSegments[(0, _util.getUid)(segment)] = true;
+ } else {
+ break;
+ }
+ }
+ }
+
+ vertexSegments[(0, _util.getUid)(closestSegment)] = true;
+ this.vertexSegments_ = vertexSegments;
+ return;
+ }
+ }
+
+ if (this.vertexFeature_) {
+ this.overlay_.getSource().removeFeature(this.vertexFeature_);
+ this.vertexFeature_ = null;
+ }
+ };
+ /**
+ * @param {SegmentData} segmentData Segment data.
+ * @param {import("../coordinate.js").Coordinate} vertex Vertex.
+ * @private
+ */
+
+
+ Modify.prototype.insertVertex_ = function (segmentData, vertex) {
+ var segment = segmentData.segment;
+ var feature = segmentData.feature;
+ var geometry = segmentData.geometry;
+ var depth = segmentData.depth;
+ var index = segmentData.index;
+ var coordinates;
+
+ while (vertex.length < geometry.getStride()) {
+ vertex.push(0);
+ }
+
+ switch (geometry.getType()) {
+ case _GeometryType.default.MULTI_LINE_STRING:
+ coordinates = geometry.getCoordinates();
+ coordinates[depth[0]].splice(index + 1, 0, vertex);
+ break;
+
+ case _GeometryType.default.POLYGON:
+ coordinates = geometry.getCoordinates();
+ coordinates[depth[0]].splice(index + 1, 0, vertex);
+ break;
+
+ case _GeometryType.default.MULTI_POLYGON:
+ coordinates = geometry.getCoordinates();
+ coordinates[depth[1]][depth[0]].splice(index + 1, 0, vertex);
+ break;
+
+ case _GeometryType.default.LINE_STRING:
+ coordinates = geometry.getCoordinates();
+ coordinates.splice(index + 1, 0, vertex);
+ break;
+
+ default:
+ return;
+ }
+
+ this.setGeometryCoordinates_(geometry, coordinates);
+ var rTree = this.rBush_;
+ rTree.remove(segmentData);
+ this.updateSegmentIndices_(geometry, index, depth, 1);
+ /** @type {SegmentData} */
+
+ var newSegmentData = {
+ segment: [segment[0], vertex],
+ feature: feature,
+ geometry: geometry,
+ depth: depth,
+ index: index
+ };
+ rTree.insert((0, _extent.boundingExtent)(newSegmentData.segment), newSegmentData);
+ this.dragSegments_.push([newSegmentData, 1]);
+ /** @type {SegmentData} */
+
+ var newSegmentData2 = {
+ segment: [vertex, segment[1]],
+ feature: feature,
+ geometry: geometry,
+ depth: depth,
+ index: index + 1
+ };
+ rTree.insert((0, _extent.boundingExtent)(newSegmentData2.segment), newSegmentData2);
+ this.dragSegments_.push([newSegmentData2, 0]);
+ this.ignoreNextSingleClick_ = true;
+ };
+ /**
+ * Removes the vertex currently being pointed.
+ * @return {boolean} True when a vertex was removed.
+ * @api
+ */
+
+
+ Modify.prototype.removePoint = function () {
+ if (this.lastPointerEvent_ && this.lastPointerEvent_.type != _MapBrowserEventType.default.POINTERDRAG) {
+ var evt = this.lastPointerEvent_;
+ this.willModifyFeatures_(evt);
+ var removed = this.removeVertex_();
+ this.dispatchEvent(new ModifyEvent(ModifyEventType.MODIFYEND, this.features_, evt));
+ this.modified_ = false;
+ return removed;
+ }
+
+ return false;
+ };
+ /**
+ * Removes a vertex from all matching features.
+ * @return {boolean} True when a vertex was removed.
+ * @private
+ */
+
+
+ Modify.prototype.removeVertex_ = function () {
+ var dragSegments = this.dragSegments_;
+ var segmentsByFeature = {};
+ var deleted = false;
+ var component, coordinates, dragSegment, geometry, i, index, left;
+ var newIndex, right, segmentData, uid;
+
+ for (i = dragSegments.length - 1; i >= 0; --i) {
+ dragSegment = dragSegments[i];
+ segmentData = dragSegment[0];
+ uid = (0, _util.getUid)(segmentData.feature);
+
+ if (segmentData.depth) {
+ // separate feature components
+ uid += '-' + segmentData.depth.join('-');
+ }
+
+ if (!(uid in segmentsByFeature)) {
+ segmentsByFeature[uid] = {};
+ }
+
+ if (dragSegment[1] === 0) {
+ segmentsByFeature[uid].right = segmentData;
+ segmentsByFeature[uid].index = segmentData.index;
+ } else if (dragSegment[1] == 1) {
+ segmentsByFeature[uid].left = segmentData;
+ segmentsByFeature[uid].index = segmentData.index + 1;
+ }
+ }
+
+ for (uid in segmentsByFeature) {
+ right = segmentsByFeature[uid].right;
+ left = segmentsByFeature[uid].left;
+ index = segmentsByFeature[uid].index;
+ newIndex = index - 1;
+
+ if (left !== undefined) {
+ segmentData = left;
+ } else {
+ segmentData = right;
+ }
+
+ if (newIndex < 0) {
+ newIndex = 0;
+ }
+
+ geometry = segmentData.geometry;
+ coordinates = geometry.getCoordinates();
+ component = coordinates;
+ deleted = false;
+
+ switch (geometry.getType()) {
+ case _GeometryType.default.MULTI_LINE_STRING:
+ if (coordinates[segmentData.depth[0]].length > 2) {
+ coordinates[segmentData.depth[0]].splice(index, 1);
+ deleted = true;
+ }
+
+ break;
+
+ case _GeometryType.default.LINE_STRING:
+ if (coordinates.length > 2) {
+ coordinates.splice(index, 1);
+ deleted = true;
+ }
+
+ break;
+
+ case _GeometryType.default.MULTI_POLYGON:
+ component = component[segmentData.depth[1]];
+
+ /* falls through */
+
+ case _GeometryType.default.POLYGON:
+ component = component[segmentData.depth[0]];
+
+ if (component.length > 4) {
+ if (index == component.length - 1) {
+ index = 0;
+ }
+
+ component.splice(index, 1);
+ deleted = true;
+
+ if (index === 0) {
+ // close the ring again
+ component.pop();
+ component.push(component[0]);
+ newIndex = component.length - 1;
+ }
+ }
+
+ break;
+
+ default: // pass
+
+ }
+
+ if (deleted) {
+ this.setGeometryCoordinates_(geometry, coordinates);
+ var segments = [];
+
+ if (left !== undefined) {
+ this.rBush_.remove(left);
+ segments.push(left.segment[0]);
+ }
+
+ if (right !== undefined) {
+ this.rBush_.remove(right);
+ segments.push(right.segment[1]);
+ }
+
+ if (left !== undefined && right !== undefined) {
+ /** @type {SegmentData} */
+ var newSegmentData = {
+ depth: segmentData.depth,
+ feature: segmentData.feature,
+ geometry: segmentData.geometry,
+ index: newIndex,
+ segment: segments
+ };
+ this.rBush_.insert((0, _extent.boundingExtent)(newSegmentData.segment), newSegmentData);
+ }
+
+ this.updateSegmentIndices_(geometry, index, segmentData.depth, -1);
+
+ if (this.vertexFeature_) {
+ this.overlay_.getSource().removeFeature(this.vertexFeature_);
+ this.vertexFeature_ = null;
+ }
+
+ dragSegments.length = 0;
+ }
+ }
+
+ return deleted;
+ };
+ /**
+ * @param {import("../geom/SimpleGeometry.js").default} geometry Geometry.
+ * @param {Array} coordinates Coordinates.
+ * @private
+ */
+
+
+ Modify.prototype.setGeometryCoordinates_ = function (geometry, coordinates) {
+ this.changingFeature_ = true;
+ geometry.setCoordinates(coordinates);
+ this.changingFeature_ = false;
+ };
+ /**
+ * @param {import("../geom/SimpleGeometry.js").default} geometry Geometry.
+ * @param {number} index Index.
+ * @param {Array<number>|undefined} depth Depth.
+ * @param {number} delta Delta (1 or -1).
+ * @private
+ */
+
+
+ Modify.prototype.updateSegmentIndices_ = function (geometry, index, depth, delta) {
+ this.rBush_.forEachInExtent(geometry.getExtent(), function (segmentDataMatch) {
+ if (segmentDataMatch.geometry === geometry && (depth === undefined || segmentDataMatch.depth === undefined || (0, _array.equals)(segmentDataMatch.depth, depth)) && segmentDataMatch.index > index) {
+ segmentDataMatch.index += delta;
+ }
+ });
+ };
+
+ return Modify;
+}(_Pointer.default);
+/**
+ * @param {SegmentData} a The first segment data.
+ * @param {SegmentData} b The second segment data.
+ * @return {number} The difference in indexes.
+ */
+
+
+function compareIndexes(a, b) {
+ return a.index - b.index;
+}
+/**
+ * Returns the distance from a point to a line segment.
+ *
+ * @param {import("../coordinate.js").Coordinate} pointCoordinates The coordinates of the point from
+ * which to calculate the distance.
+ * @param {SegmentData} segmentData The object describing the line
+ * segment we are calculating the distance to.
+ * @param {import("../proj/Projection.js").default} projection The view projection.
+ * @return {number} The square of the distance between a point and a line segment.
+ */
+
+
+function projectedDistanceToSegmentDataSquared(pointCoordinates, segmentData, projection) {
+ var geometry = segmentData.geometry;
+
+ if (geometry.getType() === _GeometryType.default.CIRCLE) {
+ var circleGeometry =
+ /** @type {import("../geom/Circle.js").default} */
+ geometry;
+
+ if (segmentData.index === CIRCLE_CIRCUMFERENCE_INDEX) {
+ var userProjection = (0, _proj.getUserProjection)();
+
+ if (userProjection) {
+ circleGeometry =
+ /** @type {import("../geom/Circle.js").default} */
+ circleGeometry.clone().transform(userProjection, projection);
+ }
+
+ var distanceToCenterSquared = (0, _coordinate.squaredDistance)(circleGeometry.getCenter(), (0, _proj.fromUserCoordinate)(pointCoordinates, projection));
+ var distanceToCircumference = Math.sqrt(distanceToCenterSquared) - circleGeometry.getRadius();
+ return distanceToCircumference * distanceToCircumference;
+ }
+ }
+
+ var coordinate = (0, _proj.fromUserCoordinate)(pointCoordinates, projection);
+ tempSegment[0] = (0, _proj.fromUserCoordinate)(segmentData.segment[0], projection);
+ tempSegment[1] = (0, _proj.fromUserCoordinate)(segmentData.segment[1], projection);
+ return (0, _coordinate.squaredDistanceToSegment)(coordinate, tempSegment);
+}
+/**
+ * Returns the point closest to a given line segment.
+ *
+ * @param {import("../coordinate.js").Coordinate} pointCoordinates The point to which a closest point
+ * should be found.
+ * @param {SegmentData} segmentData The object describing the line
+ * segment which should contain the closest point.
+ * @param {import("../proj/Projection.js").default} projection The view projection.
+ * @return {import("../coordinate.js").Coordinate} The point closest to the specified line segment.
+ */
+
+
+function closestOnSegmentData(pointCoordinates, segmentData, projection) {
+ var geometry = segmentData.geometry;
+
+ if (geometry.getType() === _GeometryType.default.CIRCLE && segmentData.index === CIRCLE_CIRCUMFERENCE_INDEX) {
+ var circleGeometry =
+ /** @type {import("../geom/Circle.js").default} */
+ geometry;
+ var userProjection = (0, _proj.getUserProjection)();
+
+ if (userProjection) {
+ circleGeometry =
+ /** @type {import("../geom/Circle.js").default} */
+ circleGeometry.clone().transform(userProjection, projection);
+ }
+
+ return (0, _proj.toUserCoordinate)(circleGeometry.getClosestPoint((0, _proj.fromUserCoordinate)(pointCoordinates, projection)), projection);
+ }
+
+ var coordinate = (0, _proj.fromUserCoordinate)(pointCoordinates, projection);
+ tempSegment[0] = (0, _proj.fromUserCoordinate)(segmentData.segment[0], projection);
+ tempSegment[1] = (0, _proj.fromUserCoordinate)(segmentData.segment[1], projection);
+ return (0, _proj.toUserCoordinate)((0, _coordinate.closestOnSegment)(coordinate, tempSegment), projection);
+}
+/**
+ * @return {import("../style/Style.js").StyleFunction} Styles.
+ */
+
+
+function getDefaultStyleFunction() {
+ var style = (0, _Style.createEditingStyle)();
+ return function (feature, resolution) {
+ return style[_GeometryType.default.POINT];
+ };
+}
+
+var _default = Modify;
+exports.default = _default;
+},{"../Collection.js":"../../../node_modules/ol/Collection.js","../CollectionEventType.js":"../../../node_modules/ol/CollectionEventType.js","../events/Event.js":"../../../node_modules/ol/events/Event.js","../events/EventType.js":"../../../node_modules/ol/events/EventType.js","../Feature.js":"../../../node_modules/ol/Feature.js","../geom/GeometryType.js":"../../../node_modules/ol/geom/GeometryType.js","../MapBrowserEventType.js":"../../../node_modules/ol/MapBrowserEventType.js","../geom/Point.js":"../../../node_modules/ol/geom/Point.js","./Pointer.js":"../../../node_modules/ol/interaction/Pointer.js","../structs/RBush.js":"../../../node_modules/ol/structs/RBush.js","../source/VectorEventType.js":"../../../node_modules/ol/source/VectorEventType.js","../layer/Vector.js":"../../../node_modules/ol/layer/Vector.js","../source/Vector.js":"../../../node_modules/ol/source/Vector.js","../events/condition.js":"../../../node_modules/ol/events/condition.js","../extent.js":"../../../node_modules/ol/extent.js","../coordinate.js":"../../../node_modules/ol/coordinate.js","../style/Style.js":"../../../node_modules/ol/style/Style.js","../array.js":"../../../node_modules/ol/array.js","../geom/Polygon.js":"../../../node_modules/ol/geom/Polygon.js","../proj.js":"../../../node_modules/ol/proj.js","../util.js":"../../../node_modules/ol/util.js"}],"../../../node_modules/ol/interaction/Select.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Collection = _interopRequireDefault(require("../Collection.js"));
+
+var _CollectionEventType = _interopRequireDefault(require("../CollectionEventType.js"));
+
+var _Event = _interopRequireDefault(require("../events/Event.js"));
+
+var _GeometryType = _interopRequireDefault(require("../geom/GeometryType.js"));
+
+var _Interaction = _interopRequireDefault(require("./Interaction.js"));
+
+var _functions = require("../functions.js");
+
+var _obj = require("../obj.js");
+
+var _Style = require("../style/Style.js");
+
+var _array = require("../array.js");
+
+var _util = require("../util.js");
+
+var _condition = require("../events/condition.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/interaction/Select
+ */
+
+
+/**
+ * @enum {string}
+ */
+var SelectEventType = {
+ /**
+ * Triggered when feature(s) has been (de)selected.
+ * @event SelectEvent#select
+ * @api
+ */
+ SELECT: 'select'
+};
+/**
+ * A function that takes an {@link module:ol/Feature} or
+ * {@link module:ol/render/Feature} and an
+ * {@link module:ol/layer/Layer} and returns `true` if the feature may be
+ * selected or `false` otherwise.
+ * @typedef {function(import("../Feature.js").FeatureLike, import("../layer/Layer.js").default):boolean} FilterFunction
+ */
+
+/**
+ * @typedef {Object} Options
+ * @property {import("../events/condition.js").Condition} [addCondition] A function
+ * that takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a
+ * boolean to indicate whether that event should be handled.
+ * By default, this is {@link module:ol/events/condition~never}. Use this if you
+ * want to use different events for add and remove instead of `toggle`.
+ * @property {import("../events/condition.js").Condition} [condition] A function that
+ * takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a
+ * boolean to indicate whether that event should be handled. This is the event
+ * for the selected features as a whole. By default, this is
+ * {@link module:ol/events/condition~singleClick}. Clicking on a feature selects that
+ * feature and removes any that were in the selection. Clicking outside any
+ * feature removes all from the selection.
+ * See `toggle`, `add`, `remove` options for adding/removing extra features to/
+ * from the selection.
+ * @property {Array<import("../layer/Layer.js").default>|function(import("../layer/Layer.js").default): boolean} [layers]
+ * A list of layers from which features should be selected. Alternatively, a
+ * filter function can be provided. The function will be called for each layer
+ * in the map and should return `true` for layers that you want to be
+ * selectable. If the option is absent, all visible layers will be considered
+ * selectable.
+ * @property {import("../style/Style.js").StyleLike|null} [style]
+ * Style for the selected features. By default the default edit style is used
+ * (see {@link module:ol/style}). Set to `null` if this interaction should not apply
+ * any style changes for selected features.
+ * If set to a falsey value, the selected feature's style will not change.
+ * @property {import("../events/condition.js").Condition} [removeCondition] A function
+ * that takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a
+ * boolean to indicate whether that event should be handled.
+ * By default, this is {@link module:ol/events/condition~never}. Use this if you
+ * want to use different events for add and remove instead of `toggle`.
+ * @property {import("../events/condition.js").Condition} [toggleCondition] A function
+ * that takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a
+ * boolean to indicate whether that event should be handled. This is in addition
+ * to the `condition` event. By default,
+ * {@link module:ol/events/condition~shiftKeyOnly}, i.e. pressing `shift` as
+ * well as the `condition` event, adds that feature to the current selection if
+ * it is not currently selected, and removes it if it is. See `add` and `remove`
+ * if you want to use different events instead of a toggle.
+ * @property {boolean} [multi=false] A boolean that determines if the default
+ * behaviour should select only single features or all (overlapping) features at
+ * the clicked map position. The default of `false` means single select.
+ * @property {import("../Collection.js").default<import("../Feature.js").default>} [features]
+ * Collection where the interaction will place selected features. Optional. If
+ * not set the interaction will create a collection. In any case the collection
+ * used by the interaction is returned by
+ * {@link module:ol/interaction/Select~Select#getFeatures}.
+ * @property {FilterFunction} [filter] A function
+ * that takes an {@link module:ol/Feature} and an
+ * {@link module:ol/layer/Layer} and returns `true` if the feature may be
+ * selected or `false` otherwise.
+ * @property {number} [hitTolerance=0] Hit-detection tolerance. Pixels inside
+ * the radius around the given position will be checked for features.
+ */
+
+/**
+ * @classdesc
+ * Events emitted by {@link module:ol/interaction/Select~Select} instances are instances of
+ * this type.
+ */
+
+var SelectEvent =
+/** @class */
+function (_super) {
+ __extends(SelectEvent, _super);
+ /**
+ * @param {SelectEventType} type The event type.
+ * @param {Array<import("../Feature.js").default>} selected Selected features.
+ * @param {Array<import("../Feature.js").default>} deselected Deselected features.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Associated
+ * {@link module:ol/MapBrowserEvent}.
+ */
+
+
+ function SelectEvent(type, selected, deselected, mapBrowserEvent) {
+ var _this = _super.call(this, type) || this;
+ /**
+ * Selected features array.
+ * @type {Array<import("../Feature.js").default>}
+ * @api
+ */
+
+
+ _this.selected = selected;
+ /**
+ * Deselected features array.
+ * @type {Array<import("../Feature.js").default>}
+ * @api
+ */
+
+ _this.deselected = deselected;
+ /**
+ * Associated {@link module:ol/MapBrowserEvent}.
+ * @type {import("../MapBrowserEvent.js").default}
+ * @api
+ */
+
+ _this.mapBrowserEvent = mapBrowserEvent;
+ return _this;
+ }
+
+ return SelectEvent;
+}(_Event.default);
+/**
+ * Original feature styles to reset to when features are no longer selected.
+ * @type {Object.<number, import("../style/Style.js").default|Array.<import("../style/Style.js").default>|import("../style/Style.js").StyleFunction>}
+ */
+
+
+var originalFeatureStyles = {};
+/**
+ * @classdesc
+ * Interaction for selecting vector features. By default, selected features are
+ * styled differently, so this interaction can be used for visual highlighting,
+ * as well as selecting features for other actions, such as modification or
+ * output. There are three ways of controlling which features are selected:
+ * using the browser event as defined by the `condition` and optionally the
+ * `toggle`, `add`/`remove`, and `multi` options; a `layers` filter; and a
+ * further feature filter using the `filter` option.
+ *
+ * Selected features are added to an internal unmanaged layer.
+ *
+ * @fires SelectEvent
+ * @api
+ */
+
+var Select =
+/** @class */
+function (_super) {
+ __extends(Select, _super);
+ /**
+ * @param {Options=} opt_options Options.
+ */
+
+
+ function Select(opt_options) {
+ var _this = _super.call(this) || this;
+
+ var options = opt_options ? opt_options : {};
+ /**
+ * @private
+ */
+
+ _this.boundAddFeature_ = _this.addFeature_.bind(_this);
+ /**
+ * @private
+ */
+
+ _this.boundRemoveFeature_ = _this.removeFeature_.bind(_this);
+ /**
+ * @private
+ * @type {import("../events/condition.js").Condition}
+ */
+
+ _this.condition_ = options.condition ? options.condition : _condition.singleClick;
+ /**
+ * @private
+ * @type {import("../events/condition.js").Condition}
+ */
+
+ _this.addCondition_ = options.addCondition ? options.addCondition : _condition.never;
+ /**
+ * @private
+ * @type {import("../events/condition.js").Condition}
+ */
+
+ _this.removeCondition_ = options.removeCondition ? options.removeCondition : _condition.never;
+ /**
+ * @private
+ * @type {import("../events/condition.js").Condition}
+ */
+
+ _this.toggleCondition_ = options.toggleCondition ? options.toggleCondition : _condition.shiftKeyOnly;
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ _this.multi_ = options.multi ? options.multi : false;
+ /**
+ * @private
+ * @type {FilterFunction}
+ */
+
+ _this.filter_ = options.filter ? options.filter : _functions.TRUE;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.hitTolerance_ = options.hitTolerance ? options.hitTolerance : 0;
+ /**
+ * @private
+ * @type {import("../style/Style.js").default|Array.<import("../style/Style.js").default>|import("../style/Style.js").StyleFunction|null}
+ */
+
+ _this.style_ = options.style !== undefined ? options.style : getDefaultStyleFunction();
+ /**
+ * @private
+ * @type {import("../Collection.js").default}
+ */
+
+ _this.features_ = options.features || new _Collection.default();
+ /** @type {function(import("../layer/Layer.js").default): boolean} */
+
+ var layerFilter;
+
+ if (options.layers) {
+ if (typeof options.layers === 'function') {
+ layerFilter = options.layers;
+ } else {
+ var layers_1 = options.layers;
+
+ layerFilter = function (layer) {
+ return (0, _array.includes)(layers_1, layer);
+ };
+ }
+ } else {
+ layerFilter = _functions.TRUE;
+ }
+ /**
+ * @private
+ * @type {function(import("../layer/Layer.js").default): boolean}
+ */
+
+
+ _this.layerFilter_ = layerFilter;
+ /**
+ * An association between selected feature (key)
+ * and layer (value)
+ * @private
+ * @type {Object<string, import("../layer/Layer.js").default>}
+ */
+
+ _this.featureLayerAssociation_ = {};
+ return _this;
+ }
+ /**
+ * @param {import("../Feature.js").FeatureLike} feature Feature.
+ * @param {import("../layer/Layer.js").default} layer Layer.
+ * @private
+ */
+
+
+ Select.prototype.addFeatureLayerAssociation_ = function (feature, layer) {
+ this.featureLayerAssociation_[(0, _util.getUid)(feature)] = layer;
+ };
+ /**
+ * Get the selected features.
+ * @return {import("../Collection.js").default<import("../Feature.js").default>} Features collection.
+ * @api
+ */
+
+
+ Select.prototype.getFeatures = function () {
+ return this.features_;
+ };
+ /**
+ * Returns the Hit-detection tolerance.
+ * @returns {number} Hit tolerance in pixels.
+ * @api
+ */
+
+
+ Select.prototype.getHitTolerance = function () {
+ return this.hitTolerance_;
+ };
+ /**
+ * Returns the associated {@link module:ol/layer/Vector~Vector vectorlayer} of
+ * the (last) selected feature. Note that this will not work with any
+ * programmatic method like pushing features to
+ * {@link module:ol/interaction/Select~Select#getFeatures collection}.
+ * @param {import("../Feature.js").FeatureLike} feature Feature
+ * @return {import('../layer/Vector.js').default} Layer.
+ * @api
+ */
+
+
+ Select.prototype.getLayer = function (feature) {
+ return (
+ /** @type {import('../layer/Vector.js').default} */
+ this.featureLayerAssociation_[(0, _util.getUid)(feature)]
+ );
+ };
+ /**
+ * Hit-detection tolerance. Pixels inside the radius around the given position
+ * will be checked for features.
+ * @param {number} hitTolerance Hit tolerance in pixels.
+ * @api
+ */
+
+
+ Select.prototype.setHitTolerance = function (hitTolerance) {
+ this.hitTolerance_ = hitTolerance;
+ };
+ /**
+ * Remove the interaction from its current map, if any, and attach it to a new
+ * map, if any. Pass `null` to just remove the interaction from the current map.
+ * @param {import("../PluggableMap.js").default} map Map.
+ * @api
+ */
+
+
+ Select.prototype.setMap = function (map) {
+ var currentMap = this.getMap();
+
+ if (currentMap && this.style_) {
+ this.features_.forEach(this.restorePreviousStyle_.bind(this));
+ }
+
+ _super.prototype.setMap.call(this, map);
+
+ if (map) {
+ this.features_.addEventListener(_CollectionEventType.default.ADD, this.boundAddFeature_);
+ this.features_.addEventListener(_CollectionEventType.default.REMOVE, this.boundRemoveFeature_);
+
+ if (this.style_) {
+ this.features_.forEach(this.applySelectedStyle_.bind(this));
+ }
+ } else {
+ this.features_.removeEventListener(_CollectionEventType.default.ADD, this.boundAddFeature_);
+ this.features_.removeEventListener(_CollectionEventType.default.REMOVE, this.boundRemoveFeature_);
+ }
+ };
+ /**
+ * @param {import("../Collection.js").CollectionEvent} evt Event.
+ * @private
+ */
+
+
+ Select.prototype.addFeature_ = function (evt) {
+ var feature = evt.element;
+
+ if (this.style_) {
+ this.applySelectedStyle_(feature);
+ }
+ };
+ /**
+ * @param {import("../Collection.js").CollectionEvent} evt Event.
+ * @private
+ */
+
+
+ Select.prototype.removeFeature_ = function (evt) {
+ var feature = evt.element;
+
+ if (this.style_) {
+ this.restorePreviousStyle_(feature);
+ }
+ };
+ /**
+ * @return {import("../style/Style.js").StyleLike|null} Select style.
+ */
+
+
+ Select.prototype.getStyle = function () {
+ return this.style_;
+ };
+ /**
+ * @param {import("../Feature.js").default} feature Feature
+ * @private
+ */
+
+
+ Select.prototype.applySelectedStyle_ = function (feature) {
+ var key = (0, _util.getUid)(feature);
+
+ if (!(key in originalFeatureStyles)) {
+ originalFeatureStyles[key] = feature.getStyle();
+ }
+
+ feature.setStyle(this.style_);
+ };
+ /**
+ * @param {import("../Feature.js").default} feature Feature
+ * @private
+ */
+
+
+ Select.prototype.restorePreviousStyle_ = function (feature) {
+ var key = (0, _util.getUid)(feature);
+ var selectInteractions =
+ /** @type {Array<Select>} */
+ this.getMap().getInteractions().getArray().filter(function (interaction) {
+ return interaction instanceof Select && interaction.getStyle() && interaction.getFeatures().getArray().indexOf(feature) !== -1;
+ });
+
+ if (selectInteractions.length > 0) {
+ feature.setStyle(selectInteractions[selectInteractions.length - 1].getStyle());
+ } else {
+ feature.setStyle(originalFeatureStyles[key]);
+ delete originalFeatureStyles[key];
+ }
+ };
+ /**
+ * @param {import("../Feature.js").FeatureLike} feature Feature.
+ * @private
+ */
+
+
+ Select.prototype.removeFeatureLayerAssociation_ = function (feature) {
+ delete this.featureLayerAssociation_[(0, _util.getUid)(feature)];
+ };
+ /**
+ * Handles the {@link module:ol/MapBrowserEvent map browser event} and may change the
+ * selected state of features.
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Map browser event.
+ * @return {boolean} `false` to stop event propagation.
+ * @this {Select}
+ */
+
+
+ Select.prototype.handleEvent = function (mapBrowserEvent) {
+ if (!this.condition_(mapBrowserEvent)) {
+ return true;
+ }
+
+ var add = this.addCondition_(mapBrowserEvent);
+ var remove = this.removeCondition_(mapBrowserEvent);
+ var toggle = this.toggleCondition_(mapBrowserEvent);
+ var set = !add && !remove && !toggle;
+ var map = mapBrowserEvent.map;
+ var features = this.getFeatures();
+ var deselected = [];
+ var selected = [];
+
+ if (set) {
+ // Replace the currently selected feature(s) with the feature(s) at the
+ // pixel, or clear the selected feature(s) if there is no feature at
+ // the pixel.
+ (0, _obj.clear)(this.featureLayerAssociation_);
+ map.forEachFeatureAtPixel(mapBrowserEvent.pixel,
+ /**
+ * @param {import("../Feature.js").FeatureLike} feature Feature.
+ * @param {import("../layer/Layer.js").default} layer Layer.
+ * @return {boolean|undefined} Continue to iterate over the features.
+ */
+ function (feature, layer) {
+ if (this.filter_(feature, layer)) {
+ selected.push(feature);
+ this.addFeatureLayerAssociation_(feature, layer);
+ return !this.multi_;
+ }
+ }.bind(this), {
+ layerFilter: this.layerFilter_,
+ hitTolerance: this.hitTolerance_
+ });
+
+ for (var i = features.getLength() - 1; i >= 0; --i) {
+ var feature = features.item(i);
+ var index = selected.indexOf(feature);
+
+ if (index > -1) {
+ // feature is already selected
+ selected.splice(index, 1);
+ } else {
+ features.remove(feature);
+ deselected.push(feature);
+ }
+ }
+
+ if (selected.length !== 0) {
+ features.extend(selected);
+ }
+ } else {
+ // Modify the currently selected feature(s).
+ map.forEachFeatureAtPixel(mapBrowserEvent.pixel,
+ /**
+ * @param {import("../Feature.js").FeatureLike} feature Feature.
+ * @param {import("../layer/Layer.js").default} layer Layer.
+ * @return {boolean|undefined} Continue to iterate over the features.
+ */
+ function (feature, layer) {
+ if (this.filter_(feature, layer)) {
+ if ((add || toggle) && !(0, _array.includes)(features.getArray(), feature)) {
+ selected.push(feature);
+ this.addFeatureLayerAssociation_(feature, layer);
+ } else if ((remove || toggle) && (0, _array.includes)(features.getArray(), feature)) {
+ deselected.push(feature);
+ this.removeFeatureLayerAssociation_(feature);
+ }
+
+ return !this.multi_;
+ }
+ }.bind(this), {
+ layerFilter: this.layerFilter_,
+ hitTolerance: this.hitTolerance_
+ });
+
+ for (var j = deselected.length - 1; j >= 0; --j) {
+ features.remove(deselected[j]);
+ }
+
+ features.extend(selected);
+ }
+
+ if (selected.length > 0 || deselected.length > 0) {
+ this.dispatchEvent(new SelectEvent(SelectEventType.SELECT, selected, deselected, mapBrowserEvent));
+ }
+
+ return true;
+ };
+
+ return Select;
+}(_Interaction.default);
+/**
+ * @return {import("../style/Style.js").StyleFunction} Styles.
+ */
+
+
+function getDefaultStyleFunction() {
+ var styles = (0, _Style.createEditingStyle)();
+ (0, _array.extend)(styles[_GeometryType.default.POLYGON], styles[_GeometryType.default.LINE_STRING]);
+ (0, _array.extend)(styles[_GeometryType.default.GEOMETRY_COLLECTION], styles[_GeometryType.default.LINE_STRING]);
+ return function (feature) {
+ if (!feature.getGeometry()) {
+ return null;
+ }
+
+ return styles[feature.getGeometry().getType()];
+ };
+}
+
+var _default = Select;
+exports.default = _default;
+},{"../Collection.js":"../../../node_modules/ol/Collection.js","../CollectionEventType.js":"../../../node_modules/ol/CollectionEventType.js","../events/Event.js":"../../../node_modules/ol/events/Event.js","../geom/GeometryType.js":"../../../node_modules/ol/geom/GeometryType.js","./Interaction.js":"../../../node_modules/ol/interaction/Interaction.js","../functions.js":"../../../node_modules/ol/functions.js","../obj.js":"../../../node_modules/ol/obj.js","../style/Style.js":"../../../node_modules/ol/style/Style.js","../array.js":"../../../node_modules/ol/array.js","../util.js":"../../../node_modules/ol/util.js","../events/condition.js":"../../../node_modules/ol/events/condition.js"}],"../../../node_modules/ol/interaction/Snap.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _CollectionEventType = _interopRequireDefault(require("../CollectionEventType.js"));
+
+var _EventType = _interopRequireDefault(require("../events/EventType.js"));
+
+var _GeometryType = _interopRequireDefault(require("../geom/GeometryType.js"));
+
+var _Pointer = _interopRequireDefault(require("./Pointer.js"));
+
+var _RBush = _interopRequireDefault(require("../structs/RBush.js"));
+
+var _VectorEventType = _interopRequireDefault(require("../source/VectorEventType.js"));
+
+var _functions = require("../functions.js");
+
+var _extent = require("../extent.js");
+
+var _coordinate = require("../coordinate.js");
+
+var _Polygon = require("../geom/Polygon.js");
+
+var _proj = require("../proj.js");
+
+var _util = require("../util.js");
+
+var _obj = require("../obj.js");
+
+var _events = require("../events.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/interaction/Snap
+ */
+
+
+/**
+ * @typedef {Object} Result
+ * @property {boolean} snapped
+ * @property {import("../coordinate.js").Coordinate|null} vertex
+ * @property {import("../pixel.js").Pixel|null} vertexPixel
+ */
+
+/**
+ * @typedef {Object} SegmentData
+ * @property {import("../Feature.js").default} feature
+ * @property {Array<import("../coordinate.js").Coordinate>} segment
+ */
+
+/**
+ * @typedef {Object} Options
+ * @property {import("../Collection.js").default<import("../Feature.js").default>} [features] Snap to these features. Either this option or source should be provided.
+ * @property {boolean} [edge=true] Snap to edges.
+ * @property {boolean} [vertex=true] Snap to vertices.
+ * @property {number} [pixelTolerance=10] Pixel tolerance for considering the pointer close enough to a segment or
+ * vertex for snapping.
+ * @property {import("../source/Vector.js").default} [source] Snap to features from this source. Either this option or features should be provided
+ */
+
+/**
+ * @param {import("../source/Vector.js").VectorSourceEvent|import("../Collection.js").CollectionEvent} evt Event.
+ * @return {import("../Feature.js").default} Feature.
+ */
+function getFeatureFromEvent(evt) {
+ if (
+ /** @type {import("../source/Vector.js").VectorSourceEvent} */
+ evt.feature) {
+ return (
+ /** @type {import("../source/Vector.js").VectorSourceEvent} */
+ evt.feature
+ );
+ } else if (
+ /** @type {import("../Collection.js").CollectionEvent} */
+ evt.element) {
+ return (
+ /** @type {import("../Feature.js").default} */
+
+ /** @type {import("../Collection.js").CollectionEvent} */
+ evt.element
+ );
+ }
+}
+
+var tempSegment = [];
+/**
+ * @classdesc
+ * Handles snapping of vector features while modifying or drawing them. The
+ * features can come from a {@link module:ol/source/Vector} or {@link module:ol/Collection~Collection}
+ * Any interaction object that allows the user to interact
+ * with the features using the mouse can benefit from the snapping, as long
+ * as it is added before.
+ *
+ * The snap interaction modifies map browser event `coordinate` and `pixel`
+ * properties to force the snap to occur to any interaction that them.
+ *
+ * Example:
+ *
+ * import Snap from 'ol/interaction/Snap';
+ *
+ * const snap = new Snap({
+ * source: source
+ * });
+ *
+ * map.addInteraction(snap);
+ *
+ * @api
+ */
+
+var Snap =
+/** @class */
+function (_super) {
+ __extends(Snap, _super);
+ /**
+ * @param {Options=} opt_options Options.
+ */
+
+
+ function Snap(opt_options) {
+ var _this = this;
+
+ var options = opt_options ? opt_options : {};
+ var pointerOptions =
+ /** @type {import("./Pointer.js").Options} */
+ options;
+
+ if (!pointerOptions.handleDownEvent) {
+ pointerOptions.handleDownEvent = _functions.TRUE;
+ }
+
+ if (!pointerOptions.stopDown) {
+ pointerOptions.stopDown = _functions.FALSE;
+ }
+
+ _this = _super.call(this, pointerOptions) || this;
+ /**
+ * @type {import("../source/Vector.js").default}
+ * @private
+ */
+
+ _this.source_ = options.source ? options.source : null;
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ _this.vertex_ = options.vertex !== undefined ? options.vertex : true;
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ _this.edge_ = options.edge !== undefined ? options.edge : true;
+ /**
+ * @type {import("../Collection.js").default<import("../Feature.js").default>}
+ * @private
+ */
+
+ _this.features_ = options.features ? options.features : null;
+ /**
+ * @type {Array<import("../events.js").EventsKey>}
+ * @private
+ */
+
+ _this.featuresListenerKeys_ = [];
+ /**
+ * @type {Object<string, import("../events.js").EventsKey>}
+ * @private
+ */
+
+ _this.featureChangeListenerKeys_ = {};
+ /**
+ * Extents are preserved so indexed segment can be quickly removed
+ * when its feature geometry changes
+ * @type {Object<string, import("../extent.js").Extent>}
+ * @private
+ */
+
+ _this.indexedFeaturesExtents_ = {};
+ /**
+ * If a feature geometry changes while a pointer drag|move event occurs, the
+ * feature doesn't get updated right away. It will be at the next 'pointerup'
+ * event fired.
+ * @type {!Object<string, import("../Feature.js").default>}
+ * @private
+ */
+
+ _this.pendingFeatures_ = {};
+ /**
+ * @type {number}
+ * @private
+ */
+
+ _this.pixelTolerance_ = options.pixelTolerance !== undefined ? options.pixelTolerance : 10;
+ /**
+ * Segment RTree for each layer
+ * @type {import("../structs/RBush.js").default<SegmentData>}
+ * @private
+ */
+
+ _this.rBush_ = new _RBush.default();
+ /**
+ * @const
+ * @private
+ * @type {Object<string, function(import("../Feature.js").default, import("../geom/Geometry.js").default): void>}
+ */
+
+ _this.SEGMENT_WRITERS_ = {
+ 'Point': _this.writePointGeometry_.bind(_this),
+ 'LineString': _this.writeLineStringGeometry_.bind(_this),
+ 'LinearRing': _this.writeLineStringGeometry_.bind(_this),
+ 'Polygon': _this.writePolygonGeometry_.bind(_this),
+ 'MultiPoint': _this.writeMultiPointGeometry_.bind(_this),
+ 'MultiLineString': _this.writeMultiLineStringGeometry_.bind(_this),
+ 'MultiPolygon': _this.writeMultiPolygonGeometry_.bind(_this),
+ 'GeometryCollection': _this.writeGeometryCollectionGeometry_.bind(_this),
+ 'Circle': _this.writeCircleGeometry_.bind(_this)
+ };
+ return _this;
+ }
+ /**
+ * Add a feature to the collection of features that we may snap to.
+ * @param {import("../Feature.js").default} feature Feature.
+ * @param {boolean=} opt_listen Whether to listen to the feature change or not
+ * Defaults to `true`.
+ * @api
+ */
+
+
+ Snap.prototype.addFeature = function (feature, opt_listen) {
+ var register = opt_listen !== undefined ? opt_listen : true;
+ var feature_uid = (0, _util.getUid)(feature);
+ var geometry = feature.getGeometry();
+
+ if (geometry) {
+ var segmentWriter = this.SEGMENT_WRITERS_[geometry.getType()];
+
+ if (segmentWriter) {
+ this.indexedFeaturesExtents_[feature_uid] = geometry.getExtent((0, _extent.createEmpty)());
+ segmentWriter(feature, geometry);
+ }
+ }
+
+ if (register) {
+ this.featureChangeListenerKeys_[feature_uid] = (0, _events.listen)(feature, _EventType.default.CHANGE, this.handleFeatureChange_, this);
+ }
+ };
+ /**
+ * @param {import("../Feature.js").default} feature Feature.
+ * @private
+ */
+
+
+ Snap.prototype.forEachFeatureAdd_ = function (feature) {
+ this.addFeature(feature);
+ };
+ /**
+ * @param {import("../Feature.js").default} feature Feature.
+ * @private
+ */
+
+
+ Snap.prototype.forEachFeatureRemove_ = function (feature) {
+ this.removeFeature(feature);
+ };
+ /**
+ * @return {import("../Collection.js").default<import("../Feature.js").default>|Array<import("../Feature.js").default>} Features.
+ * @private
+ */
+
+
+ Snap.prototype.getFeatures_ = function () {
+ var features;
+
+ if (this.features_) {
+ features = this.features_;
+ } else if (this.source_) {
+ features = this.source_.getFeatures();
+ }
+
+ return features;
+ };
+ /**
+ * @param {import("../MapBrowserEvent.js").default} evt Map browser event.
+ * @return {boolean} `false` to stop event propagation.
+ */
+
+
+ Snap.prototype.handleEvent = function (evt) {
+ var result = this.snapTo(evt.pixel, evt.coordinate, evt.map);
+
+ if (result.snapped) {
+ evt.coordinate = result.vertex.slice(0, 2);
+ evt.pixel = result.vertexPixel;
+ }
+
+ return _super.prototype.handleEvent.call(this, evt);
+ };
+ /**
+ * @param {import("../source/Vector.js").VectorSourceEvent|import("../Collection.js").CollectionEvent} evt Event.
+ * @private
+ */
+
+
+ Snap.prototype.handleFeatureAdd_ = function (evt) {
+ var feature = getFeatureFromEvent(evt);
+ this.addFeature(feature);
+ };
+ /**
+ * @param {import("../source/Vector.js").VectorSourceEvent|import("../Collection.js").CollectionEvent} evt Event.
+ * @private
+ */
+
+
+ Snap.prototype.handleFeatureRemove_ = function (evt) {
+ var feature = getFeatureFromEvent(evt);
+ this.removeFeature(feature);
+ };
+ /**
+ * @param {import("../events/Event.js").default} evt Event.
+ * @private
+ */
+
+
+ Snap.prototype.handleFeatureChange_ = function (evt) {
+ var feature =
+ /** @type {import("../Feature.js").default} */
+ evt.target;
+
+ if (this.handlingDownUpSequence) {
+ var uid = (0, _util.getUid)(feature);
+
+ if (!(uid in this.pendingFeatures_)) {
+ this.pendingFeatures_[uid] = feature;
+ }
+ } else {
+ this.updateFeature_(feature);
+ }
+ };
+ /**
+ * Handle pointer up events.
+ * @param {import("../MapBrowserEvent.js").default} evt Event.
+ * @return {boolean} If the event was consumed.
+ */
+
+
+ Snap.prototype.handleUpEvent = function (evt) {
+ var featuresToUpdate = (0, _obj.getValues)(this.pendingFeatures_);
+
+ if (featuresToUpdate.length) {
+ featuresToUpdate.forEach(this.updateFeature_.bind(this));
+ this.pendingFeatures_ = {};
+ }
+
+ return false;
+ };
+ /**
+ * Remove a feature from the collection of features that we may snap to.
+ * @param {import("../Feature.js").default} feature Feature
+ * @param {boolean=} opt_unlisten Whether to unlisten to the feature change
+ * or not. Defaults to `true`.
+ * @api
+ */
+
+
+ Snap.prototype.removeFeature = function (feature, opt_unlisten) {
+ var unregister = opt_unlisten !== undefined ? opt_unlisten : true;
+ var feature_uid = (0, _util.getUid)(feature);
+ var extent = this.indexedFeaturesExtents_[feature_uid];
+
+ if (extent) {
+ var rBush = this.rBush_;
+ var nodesToRemove_1 = [];
+ rBush.forEachInExtent(extent, function (node) {
+ if (feature === node.feature) {
+ nodesToRemove_1.push(node);
+ }
+ });
+
+ for (var i = nodesToRemove_1.length - 1; i >= 0; --i) {
+ rBush.remove(nodesToRemove_1[i]);
+ }
+ }
+
+ if (unregister) {
+ (0, _events.unlistenByKey)(this.featureChangeListenerKeys_[feature_uid]);
+ delete this.featureChangeListenerKeys_[feature_uid];
+ }
+ };
+ /**
+ * Remove the interaction from its current map and attach it to the new map.
+ * Subclasses may set up event handlers to get notified about changes to
+ * the map here.
+ * @param {import("../PluggableMap.js").default} map Map.
+ */
+
+
+ Snap.prototype.setMap = function (map) {
+ var currentMap = this.getMap();
+ var keys = this.featuresListenerKeys_;
+ var features =
+ /** @type {Array<import("../Feature.js").default>} */
+ this.getFeatures_();
+
+ if (currentMap) {
+ keys.forEach(_events.unlistenByKey);
+ keys.length = 0;
+ features.forEach(this.forEachFeatureRemove_.bind(this));
+ }
+
+ _super.prototype.setMap.call(this, map);
+
+ if (map) {
+ if (this.features_) {
+ keys.push((0, _events.listen)(this.features_, _CollectionEventType.default.ADD, this.handleFeatureAdd_, this), (0, _events.listen)(this.features_, _CollectionEventType.default.REMOVE, this.handleFeatureRemove_, this));
+ } else if (this.source_) {
+ keys.push((0, _events.listen)(this.source_, _VectorEventType.default.ADDFEATURE, this.handleFeatureAdd_, this), (0, _events.listen)(this.source_, _VectorEventType.default.REMOVEFEATURE, this.handleFeatureRemove_, this));
+ }
+
+ features.forEach(this.forEachFeatureAdd_.bind(this));
+ }
+ };
+ /**
+ * @param {import("../pixel.js").Pixel} pixel Pixel
+ * @param {import("../coordinate.js").Coordinate} pixelCoordinate Coordinate
+ * @param {import("../PluggableMap.js").default} map Map.
+ * @return {Result} Snap result
+ */
+
+
+ Snap.prototype.snapTo = function (pixel, pixelCoordinate, map) {
+ var lowerLeft = map.getCoordinateFromPixel([pixel[0] - this.pixelTolerance_, pixel[1] + this.pixelTolerance_]);
+ var upperRight = map.getCoordinateFromPixel([pixel[0] + this.pixelTolerance_, pixel[1] - this.pixelTolerance_]);
+ var box = (0, _extent.boundingExtent)([lowerLeft, upperRight]);
+ var segments = this.rBush_.getInExtent(box); // If snapping on vertices only, don't consider circles
+
+ if (this.vertex_ && !this.edge_) {
+ segments = segments.filter(function (segment) {
+ return segment.feature.getGeometry().getType() !== _GeometryType.default.CIRCLE;
+ });
+ }
+
+ var snapped = false;
+ var vertex = null;
+ var vertexPixel = null;
+
+ if (segments.length === 0) {
+ return {
+ snapped: snapped,
+ vertex: vertex,
+ vertexPixel: vertexPixel
+ };
+ }
+
+ var projection = map.getView().getProjection();
+ var projectedCoordinate = (0, _proj.fromUserCoordinate)(pixelCoordinate, projection);
+ var closestSegmentData;
+ var minSquaredDistance = Infinity;
+
+ for (var i = 0; i < segments.length; ++i) {
+ var segmentData = segments[i];
+ tempSegment[0] = (0, _proj.fromUserCoordinate)(segmentData.segment[0], projection);
+ tempSegment[1] = (0, _proj.fromUserCoordinate)(segmentData.segment[1], projection);
+ var delta = (0, _coordinate.squaredDistanceToSegment)(projectedCoordinate, tempSegment);
+
+ if (delta < minSquaredDistance) {
+ closestSegmentData = segmentData;
+ minSquaredDistance = delta;
+ }
+ }
+
+ var closestSegment = closestSegmentData.segment;
+
+ if (this.vertex_ && !this.edge_) {
+ var pixel1 = map.getPixelFromCoordinate(closestSegment[0]);
+ var pixel2 = map.getPixelFromCoordinate(closestSegment[1]);
+ var squaredDist1 = (0, _coordinate.squaredDistance)(pixel, pixel1);
+ var squaredDist2 = (0, _coordinate.squaredDistance)(pixel, pixel2);
+ var dist = Math.sqrt(Math.min(squaredDist1, squaredDist2));
+
+ if (dist <= this.pixelTolerance_) {
+ snapped = true;
+ vertex = squaredDist1 > squaredDist2 ? closestSegment[1] : closestSegment[0];
+ vertexPixel = map.getPixelFromCoordinate(vertex);
+ }
+ } else if (this.edge_) {
+ var isCircle = closestSegmentData.feature.getGeometry().getType() === _GeometryType.default.CIRCLE;
+
+ if (isCircle) {
+ var circleGeometry = closestSegmentData.feature.getGeometry();
+ var userProjection = (0, _proj.getUserProjection)();
+
+ if (userProjection) {
+ circleGeometry = circleGeometry.clone().transform(userProjection, projection);
+ }
+
+ vertex = (0, _proj.toUserCoordinate)((0, _coordinate.closestOnCircle)(projectedCoordinate,
+ /** @type {import("../geom/Circle.js").default} */
+ circleGeometry), projection);
+ } else {
+ tempSegment[0] = (0, _proj.fromUserCoordinate)(closestSegment[0], projection);
+ tempSegment[1] = (0, _proj.fromUserCoordinate)(closestSegment[1], projection);
+ vertex = (0, _proj.toUserCoordinate)((0, _coordinate.closestOnSegment)(projectedCoordinate, tempSegment), projection);
+ }
+
+ vertexPixel = map.getPixelFromCoordinate(vertex);
+
+ if ((0, _coordinate.distance)(pixel, vertexPixel) <= this.pixelTolerance_) {
+ snapped = true;
+
+ if (this.vertex_ && !isCircle) {
+ var pixel1 = map.getPixelFromCoordinate(closestSegment[0]);
+ var pixel2 = map.getPixelFromCoordinate(closestSegment[1]);
+ var squaredDist1 = (0, _coordinate.squaredDistance)(vertexPixel, pixel1);
+ var squaredDist2 = (0, _coordinate.squaredDistance)(vertexPixel, pixel2);
+ var dist = Math.sqrt(Math.min(squaredDist1, squaredDist2));
+
+ if (dist <= this.pixelTolerance_) {
+ vertex = squaredDist1 > squaredDist2 ? closestSegment[1] : closestSegment[0];
+ vertexPixel = map.getPixelFromCoordinate(vertex);
+ }
+ }
+ }
+ }
+
+ if (snapped) {
+ vertexPixel = [Math.round(vertexPixel[0]), Math.round(vertexPixel[1])];
+ }
+
+ return {
+ snapped: snapped,
+ vertex: vertex,
+ vertexPixel: vertexPixel
+ };
+ };
+ /**
+ * @param {import("../Feature.js").default} feature Feature
+ * @private
+ */
+
+
+ Snap.prototype.updateFeature_ = function (feature) {
+ this.removeFeature(feature, false);
+ this.addFeature(feature, false);
+ };
+ /**
+ * @param {import("../Feature.js").default} feature Feature
+ * @param {import("../geom/Circle.js").default} geometry Geometry.
+ * @private
+ */
+
+
+ Snap.prototype.writeCircleGeometry_ = function (feature, geometry) {
+ var projection = this.getMap().getView().getProjection();
+ var circleGeometry = geometry;
+ var userProjection = (0, _proj.getUserProjection)();
+
+ if (userProjection) {
+ circleGeometry =
+ /** @type {import("../geom/Circle.js").default} */
+ circleGeometry.clone().transform(userProjection, projection);
+ }
+
+ var polygon = (0, _Polygon.fromCircle)(circleGeometry);
+
+ if (userProjection) {
+ polygon.transform(projection, userProjection);
+ }
+
+ var coordinates = polygon.getCoordinates()[0];
+
+ for (var i = 0, ii = coordinates.length - 1; i < ii; ++i) {
+ var segment = coordinates.slice(i, i + 2);
+ var segmentData = {
+ feature: feature,
+ segment: segment
+ };
+ this.rBush_.insert((0, _extent.boundingExtent)(segment), segmentData);
+ }
+ };
+ /**
+ * @param {import("../Feature.js").default} feature Feature
+ * @param {import("../geom/GeometryCollection.js").default} geometry Geometry.
+ * @private
+ */
+
+
+ Snap.prototype.writeGeometryCollectionGeometry_ = function (feature, geometry) {
+ var geometries = geometry.getGeometriesArray();
+
+ for (var i = 0; i < geometries.length; ++i) {
+ var segmentWriter = this.SEGMENT_WRITERS_[geometries[i].getType()];
+
+ if (segmentWriter) {
+ segmentWriter(feature, geometries[i]);
+ }
+ }
+ };
+ /**
+ * @param {import("../Feature.js").default} feature Feature
+ * @param {import("../geom/LineString.js").default} geometry Geometry.
+ * @private
+ */
+
+
+ Snap.prototype.writeLineStringGeometry_ = function (feature, geometry) {
+ var coordinates = geometry.getCoordinates();
+
+ for (var i = 0, ii = coordinates.length - 1; i < ii; ++i) {
+ var segment = coordinates.slice(i, i + 2);
+ var segmentData = {
+ feature: feature,
+ segment: segment
+ };
+ this.rBush_.insert((0, _extent.boundingExtent)(segment), segmentData);
+ }
+ };
+ /**
+ * @param {import("../Feature.js").default} feature Feature
+ * @param {import("../geom/MultiLineString.js").default} geometry Geometry.
+ * @private
+ */
+
+
+ Snap.prototype.writeMultiLineStringGeometry_ = function (feature, geometry) {
+ var lines = geometry.getCoordinates();
+
+ for (var j = 0, jj = lines.length; j < jj; ++j) {
+ var coordinates = lines[j];
+
+ for (var i = 0, ii = coordinates.length - 1; i < ii; ++i) {
+ var segment = coordinates.slice(i, i + 2);
+ var segmentData = {
+ feature: feature,
+ segment: segment
+ };
+ this.rBush_.insert((0, _extent.boundingExtent)(segment), segmentData);
+ }
+ }
+ };
+ /**
+ * @param {import("../Feature.js").default} feature Feature
+ * @param {import("../geom/MultiPoint.js").default} geometry Geometry.
+ * @private
+ */
+
+
+ Snap.prototype.writeMultiPointGeometry_ = function (feature, geometry) {
+ var points = geometry.getCoordinates();
+
+ for (var i = 0, ii = points.length; i < ii; ++i) {
+ var coordinates = points[i];
+ var segmentData = {
+ feature: feature,
+ segment: [coordinates, coordinates]
+ };
+ this.rBush_.insert(geometry.getExtent(), segmentData);
+ }
+ };
+ /**
+ * @param {import("../Feature.js").default} feature Feature
+ * @param {import("../geom/MultiPolygon.js").default} geometry Geometry.
+ * @private
+ */
+
+
+ Snap.prototype.writeMultiPolygonGeometry_ = function (feature, geometry) {
+ var polygons = geometry.getCoordinates();
+
+ for (var k = 0, kk = polygons.length; k < kk; ++k) {
+ var rings = polygons[k];
+
+ for (var j = 0, jj = rings.length; j < jj; ++j) {
+ var coordinates = rings[j];
+
+ for (var i = 0, ii = coordinates.length - 1; i < ii; ++i) {
+ var segment = coordinates.slice(i, i + 2);
+ var segmentData = {
+ feature: feature,
+ segment: segment
+ };
+ this.rBush_.insert((0, _extent.boundingExtent)(segment), segmentData);
+ }
+ }
+ }
+ };
+ /**
+ * @param {import("../Feature.js").default} feature Feature
+ * @param {import("../geom/Point.js").default} geometry Geometry.
+ * @private
+ */
+
+
+ Snap.prototype.writePointGeometry_ = function (feature, geometry) {
+ var coordinates = geometry.getCoordinates();
+ var segmentData = {
+ feature: feature,
+ segment: [coordinates, coordinates]
+ };
+ this.rBush_.insert(geometry.getExtent(), segmentData);
+ };
+ /**
+ * @param {import("../Feature.js").default} feature Feature
+ * @param {import("../geom/Polygon.js").default} geometry Geometry.
+ * @private
+ */
+
+
+ Snap.prototype.writePolygonGeometry_ = function (feature, geometry) {
+ var rings = geometry.getCoordinates();
+
+ for (var j = 0, jj = rings.length; j < jj; ++j) {
+ var coordinates = rings[j];
+
+ for (var i = 0, ii = coordinates.length - 1; i < ii; ++i) {
+ var segment = coordinates.slice(i, i + 2);
+ var segmentData = {
+ feature: feature,
+ segment: segment
+ };
+ this.rBush_.insert((0, _extent.boundingExtent)(segment), segmentData);
+ }
+ }
+ };
+
+ return Snap;
+}(_Pointer.default);
+
+var _default = Snap;
+exports.default = _default;
+},{"../CollectionEventType.js":"../../../node_modules/ol/CollectionEventType.js","../events/EventType.js":"../../../node_modules/ol/events/EventType.js","../geom/GeometryType.js":"../../../node_modules/ol/geom/GeometryType.js","./Pointer.js":"../../../node_modules/ol/interaction/Pointer.js","../structs/RBush.js":"../../../node_modules/ol/structs/RBush.js","../source/VectorEventType.js":"../../../node_modules/ol/source/VectorEventType.js","../functions.js":"../../../node_modules/ol/functions.js","../extent.js":"../../../node_modules/ol/extent.js","../coordinate.js":"../../../node_modules/ol/coordinate.js","../geom/Polygon.js":"../../../node_modules/ol/geom/Polygon.js","../proj.js":"../../../node_modules/ol/proj.js","../util.js":"../../../node_modules/ol/util.js","../obj.js":"../../../node_modules/ol/obj.js","../events.js":"../../../node_modules/ol/events.js"}],"../../../node_modules/ol/interaction/Translate.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = exports.TranslateEvent = void 0;
+
+var _Collection = _interopRequireDefault(require("../Collection.js"));
+
+var _Event = _interopRequireDefault(require("../events/Event.js"));
+
+var _Property = _interopRequireDefault(require("./Property.js"));
+
+var _Pointer = _interopRequireDefault(require("./Pointer.js"));
+
+var _functions = require("../functions.js");
+
+var _Object = require("../Object.js");
+
+var _array = require("../array.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/interaction/Translate
+ */
+
+
+/**
+ * @enum {string}
+ */
+var TranslateEventType = {
+ /**
+ * Triggered upon feature translation start.
+ * @event TranslateEvent#translatestart
+ * @api
+ */
+ TRANSLATESTART: 'translatestart',
+
+ /**
+ * Triggered upon feature translation.
+ * @event TranslateEvent#translating
+ * @api
+ */
+ TRANSLATING: 'translating',
+
+ /**
+ * Triggered upon feature translation end.
+ * @event TranslateEvent#translateend
+ * @api
+ */
+ TRANSLATEEND: 'translateend'
+};
+/**
+ * A function that takes an {@link module:ol/Feature} or
+ * {@link module:ol/render/Feature} and an
+ * {@link module:ol/layer/Layer} and returns `true` if the feature may be
+ * translated or `false` otherwise.
+ * @typedef {function(import("../Feature.js").FeatureLike, import("../layer/Layer.js").default):boolean} FilterFunction
+ */
+
+/**
+ * @typedef {Object} Options
+ * @property {Collection<import("../Feature.js").default>} [features] Only features contained in this collection will be able to be translated. If
+ * not specified, all features on the map will be able to be translated.
+ * @property {Array<import("../layer/Layer.js").default>|function(import("../layer/Layer.js").default): boolean} [layers] A list of layers from which features should be
+ * translated. Alternatively, a filter function can be provided. The
+ * function will be called for each layer in the map and should return
+ * `true` for layers that you want to be translatable. If the option is
+ * absent, all visible layers will be considered translatable.
+ * @property {FilterFunction} [filter] A function
+ * that takes an {@link module:ol/Feature} and an
+ * {@link module:ol/layer/Layer} and returns `true` if the feature may be
+ * translated or `false` otherwise.
+ * @property {number} [hitTolerance=0] Hit-detection tolerance. Pixels inside the radius around the given position
+ * will be checked for features.
+ */
+
+/**
+ * @classdesc
+ * Events emitted by {@link module:ol/interaction/Translate~Translate} instances
+ * are instances of this type.
+ */
+
+var TranslateEvent =
+/** @class */
+function (_super) {
+ __extends(TranslateEvent, _super);
+ /**
+ * @param {TranslateEventType} type Type.
+ * @param {Collection<import("../Feature.js").default>} features The features translated.
+ * @param {import("../coordinate.js").Coordinate} coordinate The event coordinate.
+ * @param {import("../coordinate.js").Coordinate} startCoordinate The original coordinates before.translation started
+ * @param {import("../MapBrowserEvent.js").default} mapBrowserEvent Map browser event.
+ */
+
+
+ function TranslateEvent(type, features, coordinate, startCoordinate, mapBrowserEvent) {
+ var _this = _super.call(this, type) || this;
+ /**
+ * The features being translated.
+ * @type {Collection<import("../Feature.js").default>}
+ * @api
+ */
+
+
+ _this.features = features;
+ /**
+ * The coordinate of the drag event.
+ * @const
+ * @type {import("../coordinate.js").Coordinate}
+ * @api
+ */
+
+ _this.coordinate = coordinate;
+ /**
+ * The coordinate of the start position before translation started.
+ * @const
+ * @type {import("../coordinate.js").Coordinate}
+ * @api
+ */
+
+ _this.startCoordinate = startCoordinate;
+ /**
+ * Associated {@link module:ol/MapBrowserEvent}.
+ * @type {import("../MapBrowserEvent.js").default}
+ * @api
+ */
+
+ _this.mapBrowserEvent = mapBrowserEvent;
+ return _this;
+ }
+
+ return TranslateEvent;
+}(_Event.default);
+
+exports.TranslateEvent = TranslateEvent;
+
+/**
+ * @classdesc
+ * Interaction for translating (moving) features.
+ *
+ * @fires TranslateEvent
+ * @api
+ */
+var Translate =
+/** @class */
+function (_super) {
+ __extends(Translate, _super);
+ /**
+ * @param {Options=} opt_options Options.
+ */
+
+
+ function Translate(opt_options) {
+ var _this = this;
+
+ var options = opt_options ? opt_options : {};
+ _this = _super.call(this,
+ /** @type {import("./Pointer.js").Options} */
+ options) || this;
+ /**
+ * The last position we translated to.
+ * @type {import("../coordinate.js").Coordinate}
+ * @private
+ */
+
+ _this.lastCoordinate_ = null;
+ /**
+ * The start position before translation started.
+ * @type {import("../coordinate.js").Coordinate}
+ * @private
+ */
+
+ _this.startCoordinate_ = null;
+ /**
+ * @type {Collection<import("../Feature.js").default>}
+ * @private
+ */
+
+ _this.features_ = options.features !== undefined ? options.features : null;
+ /** @type {function(import("../layer/Layer.js").default): boolean} */
+
+ var layerFilter;
+
+ if (options.layers) {
+ if (typeof options.layers === 'function') {
+ layerFilter = options.layers;
+ } else {
+ var layers_1 = options.layers;
+
+ layerFilter = function (layer) {
+ return (0, _array.includes)(layers_1, layer);
+ };
+ }
+ } else {
+ layerFilter = _functions.TRUE;
+ }
+ /**
+ * @private
+ * @type {function(import("../layer/Layer.js").default): boolean}
+ */
+
+
+ _this.layerFilter_ = layerFilter;
+ /**
+ * @private
+ * @type {FilterFunction}
+ */
+
+ _this.filter_ = options.filter ? options.filter : _functions.TRUE;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.hitTolerance_ = options.hitTolerance ? options.hitTolerance : 0;
+ /**
+ * @type {import("../Feature.js").default}
+ * @private
+ */
+
+ _this.lastFeature_ = null;
+
+ _this.addEventListener((0, _Object.getChangeEventType)(_Property.default.ACTIVE), _this.handleActiveChanged_);
+
+ return _this;
+ }
+ /**
+ * Handle pointer down events.
+ * @param {import("../MapBrowserEvent.js").default} event Event.
+ * @return {boolean} If the event was consumed.
+ */
+
+
+ Translate.prototype.handleDownEvent = function (event) {
+ this.lastFeature_ = this.featuresAtPixel_(event.pixel, event.map);
+
+ if (!this.lastCoordinate_ && this.lastFeature_) {
+ this.startCoordinate_ = event.coordinate;
+ this.lastCoordinate_ = event.coordinate;
+ this.handleMoveEvent(event);
+ var features = this.features_ || new _Collection.default([this.lastFeature_]);
+ this.dispatchEvent(new TranslateEvent(TranslateEventType.TRANSLATESTART, features, event.coordinate, this.startCoordinate_, event));
+ return true;
+ }
+
+ return false;
+ };
+ /**
+ * Handle pointer up events.
+ * @param {import("../MapBrowserEvent.js").default} event Event.
+ * @return {boolean} If the event was consumed.
+ */
+
+
+ Translate.prototype.handleUpEvent = function (event) {
+ if (this.lastCoordinate_) {
+ this.lastCoordinate_ = null;
+ this.handleMoveEvent(event);
+ var features = this.features_ || new _Collection.default([this.lastFeature_]);
+ this.dispatchEvent(new TranslateEvent(TranslateEventType.TRANSLATEEND, features, event.coordinate, this.startCoordinate_, event)); // cleanup
+
+ this.startCoordinate_ = null;
+ return true;
+ }
+
+ return false;
+ };
+ /**
+ * Handle pointer drag events.
+ * @param {import("../MapBrowserEvent.js").default} event Event.
+ */
+
+
+ Translate.prototype.handleDragEvent = function (event) {
+ if (this.lastCoordinate_) {
+ var newCoordinate = event.coordinate;
+ var deltaX_1 = newCoordinate[0] - this.lastCoordinate_[0];
+ var deltaY_1 = newCoordinate[1] - this.lastCoordinate_[1];
+ var features = this.features_ || new _Collection.default([this.lastFeature_]);
+ features.forEach(function (feature) {
+ var geom = feature.getGeometry();
+ geom.translate(deltaX_1, deltaY_1);
+ feature.setGeometry(geom);
+ });
+ this.lastCoordinate_ = newCoordinate;
+ this.dispatchEvent(new TranslateEvent(TranslateEventType.TRANSLATING, features, newCoordinate, this.startCoordinate_, event));
+ }
+ };
+ /**
+ * Handle pointer move events.
+ * @param {import("../MapBrowserEvent.js").default} event Event.
+ */
+
+
+ Translate.prototype.handleMoveEvent = function (event) {
+ var elem = event.map.getViewport(); // Change the cursor to grab/grabbing if hovering any of the features managed
+ // by the interaction
+
+ if (this.featuresAtPixel_(event.pixel, event.map)) {
+ elem.classList.remove(this.lastCoordinate_ ? 'ol-grab' : 'ol-grabbing');
+ elem.classList.add(this.lastCoordinate_ ? 'ol-grabbing' : 'ol-grab');
+ } else {
+ elem.classList.remove('ol-grab', 'ol-grabbing');
+ }
+ };
+ /**
+ * Tests to see if the given coordinates intersects any of our selected
+ * features.
+ * @param {import("../pixel.js").Pixel} pixel Pixel coordinate to test for intersection.
+ * @param {import("../PluggableMap.js").default} map Map to test the intersection on.
+ * @return {import("../Feature.js").default} Returns the feature found at the specified pixel
+ * coordinates.
+ * @private
+ */
+
+
+ Translate.prototype.featuresAtPixel_ = function (pixel, map) {
+ return map.forEachFeatureAtPixel(pixel, function (feature, layer) {
+ if (this.filter_(feature, layer)) {
+ if (!this.features_ || (0, _array.includes)(this.features_.getArray(), feature)) {
+ return feature;
+ }
+ }
+ }.bind(this), {
+ layerFilter: this.layerFilter_,
+ hitTolerance: this.hitTolerance_
+ });
+ };
+ /**
+ * Returns the Hit-detection tolerance.
+ * @returns {number} Hit tolerance in pixels.
+ * @api
+ */
+
+
+ Translate.prototype.getHitTolerance = function () {
+ return this.hitTolerance_;
+ };
+ /**
+ * Hit-detection tolerance. Pixels inside the radius around the given position
+ * will be checked for features.
+ * @param {number} hitTolerance Hit tolerance in pixels.
+ * @api
+ */
+
+
+ Translate.prototype.setHitTolerance = function (hitTolerance) {
+ this.hitTolerance_ = hitTolerance;
+ };
+ /**
+ * Remove the interaction from its current map and attach it to the new map.
+ * Subclasses may set up event handlers to get notified about changes to
+ * the map here.
+ * @param {import("../PluggableMap.js").default} map Map.
+ */
+
+
+ Translate.prototype.setMap = function (map) {
+ var oldMap = this.getMap();
+
+ _super.prototype.setMap.call(this, map);
+
+ this.updateState_(oldMap);
+ };
+ /**
+ * @private
+ */
+
+
+ Translate.prototype.handleActiveChanged_ = function () {
+ this.updateState_(null);
+ };
+ /**
+ * @param {import("../PluggableMap.js").default} oldMap Old map.
+ * @private
+ */
+
+
+ Translate.prototype.updateState_ = function (oldMap) {
+ var map = this.getMap();
+ var active = this.getActive();
+
+ if (!map || !active) {
+ map = map || oldMap;
+
+ if (map) {
+ var elem = map.getViewport();
+ elem.classList.remove('ol-grab', 'ol-grabbing');
+ }
+ }
+ };
+
+ return Translate;
+}(_Pointer.default);
+
+var _default = Translate;
+exports.default = _default;
+},{"../Collection.js":"../../../node_modules/ol/Collection.js","../events/Event.js":"../../../node_modules/ol/events/Event.js","./Property.js":"../../../node_modules/ol/interaction/Property.js","./Pointer.js":"../../../node_modules/ol/interaction/Pointer.js","../functions.js":"../../../node_modules/ol/functions.js","../Object.js":"../../../node_modules/ol/Object.js","../array.js":"../../../node_modules/ol/array.js"}],"../../../node_modules/ol/interaction.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.defaults = defaults;
+Object.defineProperty(exports, "DoubleClickZoom", {
+ enumerable: true,
+ get: function () {
+ return _DoubleClickZoom.default;
+ }
+});
+Object.defineProperty(exports, "DragPan", {
+ enumerable: true,
+ get: function () {
+ return _DragPan.default;
+ }
+});
+Object.defineProperty(exports, "DragRotate", {
+ enumerable: true,
+ get: function () {
+ return _DragRotate.default;
+ }
+});
+Object.defineProperty(exports, "DragZoom", {
+ enumerable: true,
+ get: function () {
+ return _DragZoom.default;
+ }
+});
+Object.defineProperty(exports, "KeyboardPan", {
+ enumerable: true,
+ get: function () {
+ return _KeyboardPan.default;
+ }
+});
+Object.defineProperty(exports, "KeyboardZoom", {
+ enumerable: true,
+ get: function () {
+ return _KeyboardZoom.default;
+ }
+});
+Object.defineProperty(exports, "MouseWheelZoom", {
+ enumerable: true,
+ get: function () {
+ return _MouseWheelZoom.default;
+ }
+});
+Object.defineProperty(exports, "PinchRotate", {
+ enumerable: true,
+ get: function () {
+ return _PinchRotate.default;
+ }
+});
+Object.defineProperty(exports, "PinchZoom", {
+ enumerable: true,
+ get: function () {
+ return _PinchZoom.default;
+ }
+});
+Object.defineProperty(exports, "DragAndDrop", {
+ enumerable: true,
+ get: function () {
+ return _DragAndDrop.default;
+ }
+});
+Object.defineProperty(exports, "DragBox", {
+ enumerable: true,
+ get: function () {
+ return _DragBox.default;
+ }
+});
+Object.defineProperty(exports, "DragRotateAndZoom", {
+ enumerable: true,
+ get: function () {
+ return _DragRotateAndZoom.default;
+ }
+});
+Object.defineProperty(exports, "Draw", {
+ enumerable: true,
+ get: function () {
+ return _Draw.default;
+ }
+});
+Object.defineProperty(exports, "Extent", {
+ enumerable: true,
+ get: function () {
+ return _Extent.default;
+ }
+});
+Object.defineProperty(exports, "Interaction", {
+ enumerable: true,
+ get: function () {
+ return _Interaction.default;
+ }
+});
+Object.defineProperty(exports, "Modify", {
+ enumerable: true,
+ get: function () {
+ return _Modify.default;
+ }
+});
+Object.defineProperty(exports, "Pointer", {
+ enumerable: true,
+ get: function () {
+ return _Pointer.default;
+ }
+});
+Object.defineProperty(exports, "Select", {
+ enumerable: true,
+ get: function () {
+ return _Select.default;
+ }
+});
+Object.defineProperty(exports, "Snap", {
+ enumerable: true,
+ get: function () {
+ return _Snap.default;
+ }
+});
+Object.defineProperty(exports, "Translate", {
+ enumerable: true,
+ get: function () {
+ return _Translate.default;
+ }
+});
+
+var _Collection = _interopRequireDefault(require("./Collection.js"));
+
+var _DoubleClickZoom = _interopRequireDefault(require("./interaction/DoubleClickZoom.js"));
+
+var _DragPan = _interopRequireDefault(require("./interaction/DragPan.js"));
+
+var _DragRotate = _interopRequireDefault(require("./interaction/DragRotate.js"));
+
+var _DragZoom = _interopRequireDefault(require("./interaction/DragZoom.js"));
+
+var _KeyboardPan = _interopRequireDefault(require("./interaction/KeyboardPan.js"));
+
+var _KeyboardZoom = _interopRequireDefault(require("./interaction/KeyboardZoom.js"));
+
+var _Kinetic = _interopRequireDefault(require("./Kinetic.js"));
+
+var _MouseWheelZoom = _interopRequireDefault(require("./interaction/MouseWheelZoom.js"));
+
+var _PinchRotate = _interopRequireDefault(require("./interaction/PinchRotate.js"));
+
+var _PinchZoom = _interopRequireDefault(require("./interaction/PinchZoom.js"));
+
+var _DragAndDrop = _interopRequireDefault(require("./interaction/DragAndDrop.js"));
+
+var _DragBox = _interopRequireDefault(require("./interaction/DragBox.js"));
+
+var _DragRotateAndZoom = _interopRequireDefault(require("./interaction/DragRotateAndZoom.js"));
+
+var _Draw = _interopRequireDefault(require("./interaction/Draw.js"));
+
+var _Extent = _interopRequireDefault(require("./interaction/Extent.js"));
+
+var _Interaction = _interopRequireDefault(require("./interaction/Interaction.js"));
+
+var _Modify = _interopRequireDefault(require("./interaction/Modify.js"));
+
+var _Pointer = _interopRequireDefault(require("./interaction/Pointer.js"));
+
+var _Select = _interopRequireDefault(require("./interaction/Select.js"));
+
+var _Snap = _interopRequireDefault(require("./interaction/Snap.js"));
+
+var _Translate = _interopRequireDefault(require("./interaction/Translate.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module ol/interaction
+ */
+
+/**
+ * @typedef {Object} DefaultsOptions
+ * @property {boolean} [altShiftDragRotate=true] Whether Alt-Shift-drag rotate is
+ * desired.
+ * @property {boolean} [onFocusOnly=false] Interact only when the map has the
+ * focus. This affects the `MouseWheelZoom` and `DragPan` interactions and is
+ * useful when page scroll is desired for maps that do not have the browser's
+ * focus.
+ * @property {boolean} [doubleClickZoom=true] Whether double click zoom is
+ * desired.
+ * @property {boolean} [keyboard=true] Whether keyboard interaction is desired.
+ * @property {boolean} [mouseWheelZoom=true] Whether mousewheel zoom is desired.
+ * @property {boolean} [shiftDragZoom=true] Whether Shift-drag zoom is desired.
+ * @property {boolean} [dragPan=true] Whether drag pan is desired.
+ * @property {boolean} [pinchRotate=true] Whether pinch rotate is desired.
+ * @property {boolean} [pinchZoom=true] Whether pinch zoom is desired.
+ * @property {number} [zoomDelta] Zoom level delta when using keyboard or double click zoom.
+ * @property {number} [zoomDuration] Duration of the zoom animation in
+ * milliseconds.
+ */
+
+/**
+ * Set of interactions included in maps by default. Specific interactions can be
+ * excluded by setting the appropriate option to false in the constructor
+ * options, but the order of the interactions is fixed. If you want to specify
+ * a different order for interactions, you will need to create your own
+ * {@link module:ol/interaction/Interaction} instances and insert
+ * them into a {@link module:ol/Collection} in the order you want
+ * before creating your {@link module:ol/Map~Map} instance. Changing the order can
+ * be of interest if the event propagation needs to be stopped at a point.
+ * The default set of interactions, in sequence, is:
+ * * {@link module:ol/interaction/DragRotate~DragRotate}
+ * * {@link module:ol/interaction/DoubleClickZoom~DoubleClickZoom}
+ * * {@link module:ol/interaction/DragPan~DragPan}
+ * * {@link module:ol/interaction/PinchRotate~PinchRotate}
+ * * {@link module:ol/interaction/PinchZoom~PinchZoom}
+ * * {@link module:ol/interaction/KeyboardPan~KeyboardPan}
+ * * {@link module:ol/interaction/KeyboardZoom~KeyboardZoom}
+ * * {@link module:ol/interaction/MouseWheelZoom~MouseWheelZoom}
+ * * {@link module:ol/interaction/DragZoom~DragZoom}
+ *
+ * @param {DefaultsOptions=} opt_options Defaults options.
+ * @return {import("./Collection.js").default<import("./interaction/Interaction.js").default>}
+ * A collection of interactions to be used with the {@link module:ol/Map~Map}
+ * constructor's `interactions` option.
+ * @api
+ */
+function defaults(opt_options) {
+ var options = opt_options ? opt_options : {};
+ var interactions = new _Collection.default();
+ var kinetic = new _Kinetic.default(-0.005, 0.05, 100);
+ var altShiftDragRotate = options.altShiftDragRotate !== undefined ? options.altShiftDragRotate : true;
+
+ if (altShiftDragRotate) {
+ interactions.push(new _DragRotate.default());
+ }
+
+ var doubleClickZoom = options.doubleClickZoom !== undefined ? options.doubleClickZoom : true;
+
+ if (doubleClickZoom) {
+ interactions.push(new _DoubleClickZoom.default({
+ delta: options.zoomDelta,
+ duration: options.zoomDuration
+ }));
+ }
+
+ var dragPan = options.dragPan !== undefined ? options.dragPan : true;
+
+ if (dragPan) {
+ interactions.push(new _DragPan.default({
+ onFocusOnly: options.onFocusOnly,
+ kinetic: kinetic
+ }));
+ }
+
+ var pinchRotate = options.pinchRotate !== undefined ? options.pinchRotate : true;
+
+ if (pinchRotate) {
+ interactions.push(new _PinchRotate.default());
+ }
+
+ var pinchZoom = options.pinchZoom !== undefined ? options.pinchZoom : true;
+
+ if (pinchZoom) {
+ interactions.push(new _PinchZoom.default({
+ duration: options.zoomDuration
+ }));
+ }
+
+ var keyboard = options.keyboard !== undefined ? options.keyboard : true;
+
+ if (keyboard) {
+ interactions.push(new _KeyboardPan.default());
+ interactions.push(new _KeyboardZoom.default({
+ delta: options.zoomDelta,
+ duration: options.zoomDuration
+ }));
+ }
+
+ var mouseWheelZoom = options.mouseWheelZoom !== undefined ? options.mouseWheelZoom : true;
+
+ if (mouseWheelZoom) {
+ interactions.push(new _MouseWheelZoom.default({
+ onFocusOnly: options.onFocusOnly,
+ duration: options.zoomDuration
+ }));
+ }
+
+ var shiftDragZoom = options.shiftDragZoom !== undefined ? options.shiftDragZoom : true;
+
+ if (shiftDragZoom) {
+ interactions.push(new _DragZoom.default({
+ duration: options.zoomDuration
+ }));
+ }
+
+ return interactions;
+}
+},{"./Collection.js":"../../../node_modules/ol/Collection.js","./interaction/DoubleClickZoom.js":"../../../node_modules/ol/interaction/DoubleClickZoom.js","./interaction/DragPan.js":"../../../node_modules/ol/interaction/DragPan.js","./interaction/DragRotate.js":"../../../node_modules/ol/interaction/DragRotate.js","./interaction/DragZoom.js":"../../../node_modules/ol/interaction/DragZoom.js","./interaction/KeyboardPan.js":"../../../node_modules/ol/interaction/KeyboardPan.js","./interaction/KeyboardZoom.js":"../../../node_modules/ol/interaction/KeyboardZoom.js","./Kinetic.js":"../../../node_modules/ol/Kinetic.js","./interaction/MouseWheelZoom.js":"../../../node_modules/ol/interaction/MouseWheelZoom.js","./interaction/PinchRotate.js":"../../../node_modules/ol/interaction/PinchRotate.js","./interaction/PinchZoom.js":"../../../node_modules/ol/interaction/PinchZoom.js","./interaction/DragAndDrop.js":"../../../node_modules/ol/interaction/DragAndDrop.js","./interaction/DragBox.js":"../../../node_modules/ol/interaction/DragBox.js","./interaction/DragRotateAndZoom.js":"../../../node_modules/ol/interaction/DragRotateAndZoom.js","./interaction/Draw.js":"../../../node_modules/ol/interaction/Draw.js","./interaction/Extent.js":"../../../node_modules/ol/interaction/Extent.js","./interaction/Interaction.js":"../../../node_modules/ol/interaction/Interaction.js","./interaction/Modify.js":"../../../node_modules/ol/interaction/Modify.js","./interaction/Pointer.js":"../../../node_modules/ol/interaction/Pointer.js","./interaction/Select.js":"../../../node_modules/ol/interaction/Select.js","./interaction/Snap.js":"../../../node_modules/ol/interaction/Snap.js","./interaction/Translate.js":"../../../node_modules/ol/interaction/Translate.js"}],"../../../node_modules/ol/Map.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Composite = _interopRequireDefault(require("./renderer/Composite.js"));
+
+var _PluggableMap = _interopRequireDefault(require("./PluggableMap.js"));
+
+var _obj = require("./obj.js");
+
+var _control = require("./control.js");
+
+var _interaction = require("./interaction.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/Map
+ */
+
+
+/**
+ * @classdesc
+ * The map is the core component of OpenLayers. For a map to render, a view,
+ * one or more layers, and a target container are needed:
+ *
+ * import Map from 'ol/Map';
+ * import View from 'ol/View';
+ * import TileLayer from 'ol/layer/Tile';
+ * import OSM from 'ol/source/OSM';
+ *
+ * var map = new Map({
+ * view: new View({
+ * center: [0, 0],
+ * zoom: 1
+ * }),
+ * layers: [
+ * new TileLayer({
+ * source: new OSM()
+ * })
+ * ],
+ * target: 'map'
+ * });
+ *
+ * The above snippet creates a map using a {@link module:ol/layer/Tile} to
+ * display {@link module:ol/source/OSM~OSM} OSM data and render it to a DOM
+ * element with the id `map`.
+ *
+ * The constructor places a viewport container (with CSS class name
+ * `ol-viewport`) in the target element (see `getViewport()`), and then two
+ * further elements within the viewport: one with CSS class name
+ * `ol-overlaycontainer-stopevent` for controls and some overlays, and one with
+ * CSS class name `ol-overlaycontainer` for other overlays (see the `stopEvent`
+ * option of {@link module:ol/Overlay~Overlay} for the difference). The map
+ * itself is placed in a further element within the viewport.
+ *
+ * Layers are stored as a {@link module:ol/Collection~Collection} in
+ * layerGroups. A top-level group is provided by the library. This is what is
+ * accessed by `getLayerGroup` and `setLayerGroup`. Layers entered in the
+ * options are added to this group, and `addLayer` and `removeLayer` change the
+ * layer collection in the group. `getLayers` is a convenience function for
+ * `getLayerGroup().getLayers()`. Note that {@link module:ol/layer/Group~Group}
+ * is a subclass of {@link module:ol/layer/Base}, so layers entered in the
+ * options or added with `addLayer` can be groups, which can contain further
+ * groups, and so on.
+ *
+ * @api
+ */
+var Map =
+/** @class */
+function (_super) {
+ __extends(Map, _super);
+ /**
+ * @param {import("./PluggableMap.js").MapOptions} options Map options.
+ */
+
+
+ function Map(options) {
+ var _this = this;
+
+ options = (0, _obj.assign)({}, options);
+
+ if (!options.controls) {
+ options.controls = (0, _control.defaults)();
+ }
+
+ if (!options.interactions) {
+ options.interactions = (0, _interaction.defaults)({
+ onFocusOnly: true
+ });
+ }
+
+ _this = _super.call(this, options) || this;
+ return _this;
+ }
+
+ Map.prototype.createRenderer = function () {
+ return new _Composite.default(this);
+ };
+
+ return Map;
+}(_PluggableMap.default);
+
+var _default = Map;
+exports.default = _default;
+},{"./renderer/Composite.js":"../../../node_modules/ol/renderer/Composite.js","./PluggableMap.js":"../../../node_modules/ol/PluggableMap.js","./obj.js":"../../../node_modules/ol/obj.js","./control.js":"../../../node_modules/ol/control.js","./interaction.js":"../../../node_modules/ol/interaction.js"}],"../../../node_modules/ol/structs/LRUCache.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _asserts = require("../asserts.js");
+
+/**
+ * @module ol/structs/LRUCache
+ */
+
+/**
+ * @typedef {Object} Entry
+ * @property {string} key_
+ * @property {Object} newer
+ * @property {Object} older
+ * @property {*} value_
+ */
+
+/**
+ * @classdesc
+ * Implements a Least-Recently-Used cache where the keys do not conflict with
+ * Object's properties (e.g. 'hasOwnProperty' is not allowed as a key). Expiring
+ * items from the cache is the responsibility of the user.
+ *
+ * @fires import("../events/Event.js").default
+ * @template T
+ */
+var LRUCache =
+/** @class */
+function () {
+ /**
+ * @param {number=} opt_highWaterMark High water mark.
+ */
+ function LRUCache(opt_highWaterMark) {
+ /**
+ * Desired max cache size after expireCache(). If set to 0, no cache entries
+ * will be pruned at all.
+ * @type {number}
+ */
+ this.highWaterMark = opt_highWaterMark !== undefined ? opt_highWaterMark : 2048;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ this.count_ = 0;
+ /**
+ * @private
+ * @type {!Object<string, Entry>}
+ */
+
+ this.entries_ = {};
+ /**
+ * @private
+ * @type {?Entry}
+ */
+
+ this.oldest_ = null;
+ /**
+ * @private
+ * @type {?Entry}
+ */
+
+ this.newest_ = null;
+ }
+ /**
+ * @return {boolean} Can expire cache.
+ */
+
+
+ LRUCache.prototype.canExpireCache = function () {
+ return this.highWaterMark > 0 && this.getCount() > this.highWaterMark;
+ };
+ /**
+ * FIXME empty description for jsdoc
+ */
+
+
+ LRUCache.prototype.clear = function () {
+ this.count_ = 0;
+ this.entries_ = {};
+ this.oldest_ = null;
+ this.newest_ = null;
+ };
+ /**
+ * @param {string} key Key.
+ * @return {boolean} Contains key.
+ */
+
+
+ LRUCache.prototype.containsKey = function (key) {
+ return this.entries_.hasOwnProperty(key);
+ };
+ /**
+ * @param {function(T, string, LRUCache<T>): ?} f The function
+ * to call for every entry from the oldest to the newer. This function takes
+ * 3 arguments (the entry value, the entry key and the LRUCache object).
+ * The return value is ignored.
+ */
+
+
+ LRUCache.prototype.forEach = function (f) {
+ var entry = this.oldest_;
+
+ while (entry) {
+ f(entry.value_, entry.key_, this);
+ entry = entry.newer;
+ }
+ };
+ /**
+ * @param {string} key Key.
+ * @param {*=} opt_options Options (reserverd for subclasses).
+ * @return {T} Value.
+ */
+
+
+ LRUCache.prototype.get = function (key, opt_options) {
+ var entry = this.entries_[key];
+ (0, _asserts.assert)(entry !== undefined, 15); // Tried to get a value for a key that does not exist in the cache
+
+ if (entry === this.newest_) {
+ return entry.value_;
+ } else if (entry === this.oldest_) {
+ this.oldest_ =
+ /** @type {Entry} */
+ this.oldest_.newer;
+ this.oldest_.older = null;
+ } else {
+ entry.newer.older = entry.older;
+ entry.older.newer = entry.newer;
+ }
+
+ entry.newer = null;
+ entry.older = this.newest_;
+ this.newest_.newer = entry;
+ this.newest_ = entry;
+ return entry.value_;
+ };
+ /**
+ * Remove an entry from the cache.
+ * @param {string} key The entry key.
+ * @return {T} The removed entry.
+ */
+
+
+ LRUCache.prototype.remove = function (key) {
+ var entry = this.entries_[key];
+ (0, _asserts.assert)(entry !== undefined, 15); // Tried to get a value for a key that does not exist in the cache
+
+ if (entry === this.newest_) {
+ this.newest_ =
+ /** @type {Entry} */
+ entry.older;
+
+ if (this.newest_) {
+ this.newest_.newer = null;
+ }
+ } else if (entry === this.oldest_) {
+ this.oldest_ =
+ /** @type {Entry} */
+ entry.newer;
+
+ if (this.oldest_) {
+ this.oldest_.older = null;
+ }
+ } else {
+ entry.newer.older = entry.older;
+ entry.older.newer = entry.newer;
+ }
+
+ delete this.entries_[key];
+ --this.count_;
+ return entry.value_;
+ };
+ /**
+ * @return {number} Count.
+ */
+
+
+ LRUCache.prototype.getCount = function () {
+ return this.count_;
+ };
+ /**
+ * @return {Array<string>} Keys.
+ */
+
+
+ LRUCache.prototype.getKeys = function () {
+ var keys = new Array(this.count_);
+ var i = 0;
+ var entry;
+
+ for (entry = this.newest_; entry; entry = entry.older) {
+ keys[i++] = entry.key_;
+ }
+
+ return keys;
+ };
+ /**
+ * @return {Array<T>} Values.
+ */
+
+
+ LRUCache.prototype.getValues = function () {
+ var values = new Array(this.count_);
+ var i = 0;
+ var entry;
+
+ for (entry = this.newest_; entry; entry = entry.older) {
+ values[i++] = entry.value_;
+ }
+
+ return values;
+ };
+ /**
+ * @return {T} Last value.
+ */
+
+
+ LRUCache.prototype.peekLast = function () {
+ return this.oldest_.value_;
+ };
+ /**
+ * @return {string} Last key.
+ */
+
+
+ LRUCache.prototype.peekLastKey = function () {
+ return this.oldest_.key_;
+ };
+ /**
+ * Get the key of the newest item in the cache. Throws if the cache is empty.
+ * @return {string} The newest key.
+ */
+
+
+ LRUCache.prototype.peekFirstKey = function () {
+ return this.newest_.key_;
+ };
+ /**
+ * @return {T} value Value.
+ */
+
+
+ LRUCache.prototype.pop = function () {
+ var entry = this.oldest_;
+ delete this.entries_[entry.key_];
+
+ if (entry.newer) {
+ entry.newer.older = null;
+ }
+
+ this.oldest_ =
+ /** @type {Entry} */
+ entry.newer;
+
+ if (!this.oldest_) {
+ this.newest_ = null;
+ }
+
+ --this.count_;
+ return entry.value_;
+ };
+ /**
+ * @param {string} key Key.
+ * @param {T} value Value.
+ */
+
+
+ LRUCache.prototype.replace = function (key, value) {
+ this.get(key); // update `newest_`
+
+ this.entries_[key].value_ = value;
+ };
+ /**
+ * @param {string} key Key.
+ * @param {T} value Value.
+ */
+
+
+ LRUCache.prototype.set = function (key, value) {
+ (0, _asserts.assert)(!(key in this.entries_), 16); // Tried to set a value for a key that is used already
+
+ var entry = {
+ key_: key,
+ newer: null,
+ older: this.newest_,
+ value_: value
+ };
+
+ if (!this.newest_) {
+ this.oldest_ = entry;
+ } else {
+ this.newest_.newer = entry;
+ }
+
+ this.newest_ = entry;
+ this.entries_[key] = entry;
+ ++this.count_;
+ };
+ /**
+ * Set a maximum number of entries for the cache.
+ * @param {number} size Cache size.
+ * @api
+ */
+
+
+ LRUCache.prototype.setSize = function (size) {
+ this.highWaterMark = size;
+ };
+
+ return LRUCache;
+}();
+
+var _default = LRUCache;
+exports.default = _default;
+},{"../asserts.js":"../../../node_modules/ol/asserts.js"}],"../../../node_modules/ol/tilecoord.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.createOrUpdate = createOrUpdate;
+exports.getKeyZXY = getKeyZXY;
+exports.getKey = getKey;
+exports.fromKey = fromKey;
+exports.hash = hash;
+exports.withinExtentAndZ = withinExtentAndZ;
+
+/**
+ * @module ol/tilecoord
+ */
+
+/**
+ * An array of three numbers representing the location of a tile in a tile
+ * grid. The order is `z` (zoom level), `x` (column), and `y` (row).
+ * @typedef {Array<number>} TileCoord
+ * @api
+ */
+
+/**
+ * @param {number} z Z.
+ * @param {number} x X.
+ * @param {number} y Y.
+ * @param {TileCoord=} opt_tileCoord Tile coordinate.
+ * @return {TileCoord} Tile coordinate.
+ */
+function createOrUpdate(z, x, y, opt_tileCoord) {
+ if (opt_tileCoord !== undefined) {
+ opt_tileCoord[0] = z;
+ opt_tileCoord[1] = x;
+ opt_tileCoord[2] = y;
+ return opt_tileCoord;
+ } else {
+ return [z, x, y];
+ }
+}
+/**
+ * @param {number} z Z.
+ * @param {number} x X.
+ * @param {number} y Y.
+ * @return {string} Key.
+ */
+
+
+function getKeyZXY(z, x, y) {
+ return z + '/' + x + '/' + y;
+}
+/**
+ * Get the key for a tile coord.
+ * @param {TileCoord} tileCoord The tile coord.
+ * @return {string} Key.
+ */
+
+
+function getKey(tileCoord) {
+ return getKeyZXY(tileCoord[0], tileCoord[1], tileCoord[2]);
+}
+/**
+ * Get a tile coord given a key.
+ * @param {string} key The tile coord key.
+ * @return {TileCoord} The tile coord.
+ */
+
+
+function fromKey(key) {
+ return key.split('/').map(Number);
+}
+/**
+ * @param {TileCoord} tileCoord Tile coord.
+ * @return {number} Hash.
+ */
+
+
+function hash(tileCoord) {
+ return (tileCoord[1] << tileCoord[0]) + tileCoord[2];
+}
+/**
+ * @param {TileCoord} tileCoord Tile coordinate.
+ * @param {!import("./tilegrid/TileGrid.js").default} tileGrid Tile grid.
+ * @return {boolean} Tile coordinate is within extent and zoom level range.
+ */
+
+
+function withinExtentAndZ(tileCoord, tileGrid) {
+ var z = tileCoord[0];
+ var x = tileCoord[1];
+ var y = tileCoord[2];
+
+ if (tileGrid.getMinZoom() > z || z > tileGrid.getMaxZoom()) {
+ return false;
+ }
+
+ var extent = tileGrid.getExtent();
+ var tileRange;
+
+ if (!extent) {
+ tileRange = tileGrid.getFullTileRange(z);
+ } else {
+ tileRange = tileGrid.getTileRangeForExtentAndZ(extent, z);
+ }
+
+ if (!tileRange) {
+ return true;
+ } else {
+ return tileRange.containsXY(x, y);
+ }
+}
+},{}],"../../../node_modules/ol/TileCache.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _LRUCache = _interopRequireDefault(require("./structs/LRUCache.js"));
+
+var _tilecoord = require("./tilecoord.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/TileCache
+ */
+
+
+var TileCache =
+/** @class */
+function (_super) {
+ __extends(TileCache, _super);
+
+ function TileCache() {
+ return _super !== null && _super.apply(this, arguments) || this;
+ }
+ /**
+ * @param {!Object<string, boolean>} usedTiles Used tiles.
+ */
+
+
+ TileCache.prototype.expireCache = function (usedTiles) {
+ while (this.canExpireCache()) {
+ var tile = this.peekLast();
+
+ if (tile.getKey() in usedTiles) {
+ break;
+ } else {
+ this.pop().release();
+ }
+ }
+ };
+ /**
+ * Prune all tiles from the cache that don't have the same z as the newest tile.
+ */
+
+
+ TileCache.prototype.pruneExceptNewestZ = function () {
+ if (this.getCount() === 0) {
+ return;
+ }
+
+ var key = this.peekFirstKey();
+ var tileCoord = (0, _tilecoord.fromKey)(key);
+ var z = tileCoord[0];
+ this.forEach(function (tile) {
+ if (tile.tileCoord[0] !== z) {
+ this.remove((0, _tilecoord.getKey)(tile.tileCoord));
+ tile.release();
+ }
+ }.bind(this));
+ };
+
+ return TileCache;
+}(_LRUCache.default);
+
+var _default = TileCache;
+exports.default = _default;
+},{"./structs/LRUCache.js":"../../../node_modules/ol/structs/LRUCache.js","./tilecoord.js":"../../../node_modules/ol/tilecoord.js"}],"../../../node_modules/ol/TileRange.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.createOrUpdate = createOrUpdate;
+exports.default = void 0;
+
+/**
+ * @module ol/TileRange
+ */
+
+/**
+ * A representation of a contiguous block of tiles. A tile range is specified
+ * by its min/max tile coordinates and is inclusive of coordinates.
+ */
+var TileRange =
+/** @class */
+function () {
+ /**
+ * @param {number} minX Minimum X.
+ * @param {number} maxX Maximum X.
+ * @param {number} minY Minimum Y.
+ * @param {number} maxY Maximum Y.
+ */
+ function TileRange(minX, maxX, minY, maxY) {
+ /**
+ * @type {number}
+ */
+ this.minX = minX;
+ /**
+ * @type {number}
+ */
+
+ this.maxX = maxX;
+ /**
+ * @type {number}
+ */
+
+ this.minY = minY;
+ /**
+ * @type {number}
+ */
+
+ this.maxY = maxY;
+ }
+ /**
+ * @param {import("./tilecoord.js").TileCoord} tileCoord Tile coordinate.
+ * @return {boolean} Contains tile coordinate.
+ */
+
+
+ TileRange.prototype.contains = function (tileCoord) {
+ return this.containsXY(tileCoord[1], tileCoord[2]);
+ };
+ /**
+ * @param {TileRange} tileRange Tile range.
+ * @return {boolean} Contains.
+ */
+
+
+ TileRange.prototype.containsTileRange = function (tileRange) {
+ return this.minX <= tileRange.minX && tileRange.maxX <= this.maxX && this.minY <= tileRange.minY && tileRange.maxY <= this.maxY;
+ };
+ /**
+ * @param {number} x Tile coordinate x.
+ * @param {number} y Tile coordinate y.
+ * @return {boolean} Contains coordinate.
+ */
+
+
+ TileRange.prototype.containsXY = function (x, y) {
+ return this.minX <= x && x <= this.maxX && this.minY <= y && y <= this.maxY;
+ };
+ /**
+ * @param {TileRange} tileRange Tile range.
+ * @return {boolean} Equals.
+ */
+
+
+ TileRange.prototype.equals = function (tileRange) {
+ return this.minX == tileRange.minX && this.minY == tileRange.minY && this.maxX == tileRange.maxX && this.maxY == tileRange.maxY;
+ };
+ /**
+ * @param {TileRange} tileRange Tile range.
+ */
+
+
+ TileRange.prototype.extend = function (tileRange) {
+ if (tileRange.minX < this.minX) {
+ this.minX = tileRange.minX;
+ }
+
+ if (tileRange.maxX > this.maxX) {
+ this.maxX = tileRange.maxX;
+ }
+
+ if (tileRange.minY < this.minY) {
+ this.minY = tileRange.minY;
+ }
+
+ if (tileRange.maxY > this.maxY) {
+ this.maxY = tileRange.maxY;
+ }
+ };
+ /**
+ * @return {number} Height.
+ */
+
+
+ TileRange.prototype.getHeight = function () {
+ return this.maxY - this.minY + 1;
+ };
+ /**
+ * @return {import("./size.js").Size} Size.
+ */
+
+
+ TileRange.prototype.getSize = function () {
+ return [this.getWidth(), this.getHeight()];
+ };
+ /**
+ * @return {number} Width.
+ */
+
+
+ TileRange.prototype.getWidth = function () {
+ return this.maxX - this.minX + 1;
+ };
+ /**
+ * @param {TileRange} tileRange Tile range.
+ * @return {boolean} Intersects.
+ */
+
+
+ TileRange.prototype.intersects = function (tileRange) {
+ return this.minX <= tileRange.maxX && this.maxX >= tileRange.minX && this.minY <= tileRange.maxY && this.maxY >= tileRange.minY;
+ };
+
+ return TileRange;
+}();
+/**
+ * @param {number} minX Minimum X.
+ * @param {number} maxX Maximum X.
+ * @param {number} minY Minimum Y.
+ * @param {number} maxY Maximum Y.
+ * @param {TileRange=} tileRange TileRange.
+ * @return {TileRange} Tile range.
+ */
+
+
+function createOrUpdate(minX, maxX, minY, maxY, tileRange) {
+ if (tileRange !== undefined) {
+ tileRange.minX = minX;
+ tileRange.maxX = maxX;
+ tileRange.minY = minY;
+ tileRange.maxY = maxY;
+ return tileRange;
+ } else {
+ return new TileRange(minX, maxX, minY, maxY);
+ }
+}
+
+var _default = TileRange;
+exports.default = _default;
+},{}],"../../../node_modules/ol/VectorRenderTile.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Tile = _interopRequireDefault(require("./Tile.js"));
+
+var _dom = require("./dom.js");
+
+var _util = require("./util.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/VectorRenderTile
+ */
+
+
+/**
+ * @typedef {Object} ReplayState
+ * @property {boolean} dirty
+ * @property {null|import("./render.js").OrderFunction} renderedRenderOrder
+ * @property {number} renderedTileRevision
+ * @property {number} renderedResolution
+ * @property {number} renderedRevision
+ * @property {number} renderedZ
+ * @property {number} renderedTileResolution
+ * @property {number} renderedTileZ
+ */
+
+/**
+ * @type {Array<HTMLCanvasElement>}
+ */
+var canvasPool = [];
+
+var VectorRenderTile =
+/** @class */
+function (_super) {
+ __extends(VectorRenderTile, _super);
+ /**
+ * @param {import("./tilecoord.js").TileCoord} tileCoord Tile coordinate.
+ * @param {import("./TileState.js").default} state State.
+ * @param {import("./tilecoord.js").TileCoord} urlTileCoord Wrapped tile coordinate for source urls.
+ * @param {function(VectorRenderTile):Array<import("./VectorTile").default>} getSourceTiles Function
+ * to get source tiles for this tile.
+ */
+
+
+ function VectorRenderTile(tileCoord, state, urlTileCoord, getSourceTiles) {
+ var _this = _super.call(this, tileCoord, state, {
+ transition: 0
+ }) || this;
+ /**
+ * @private
+ * @type {!Object<string, CanvasRenderingContext2D>}
+ */
+
+
+ _this.context_ = {};
+ /**
+ * Executor groups by layer uid. Entries are read/written by the renderer.
+ * @type {Object<string, Array<import("./render/canvas/ExecutorGroup.js").default>>}
+ */
+
+ _this.executorGroups = {};
+ /**
+ * Number of loading source tiles. Read/written by the source.
+ * @type {number}
+ */
+
+ _this.loadingSourceTiles = 0;
+ /**
+ * Tile keys of error source tiles. Read/written by the source.
+ * @type {Object<string, boolean>}
+ */
+
+ _this.errorSourceTileKeys = {};
+ /**
+ * @type {Object<number, ImageData>}
+ */
+
+ _this.hitDetectionImageData = {};
+ /**
+ * @private
+ * @type {!Object<string, ReplayState>}
+ */
+
+ _this.replayState_ = {};
+ /**
+ * @type {Array<import("./VectorTile.js").default>}
+ */
+
+ _this.sourceTiles = null;
+ /**
+ * @type {number}
+ */
+
+ _this.wantedResolution;
+ /**
+ * @type {!function():Array<import("./VectorTile.js").default>}
+ */
+
+ _this.getSourceTiles = getSourceTiles.bind(undefined, _this);
+ /**
+ * z of the source tiles of the last getSourceTiles call.
+ * @type {number}
+ */
+
+ _this.sourceZ = -1;
+ /**
+ * True when all tiles for this tile's nominal resolution are available.
+ * @type {boolean}
+ */
+
+ _this.hifi = false;
+ /**
+ * @type {import("./tilecoord.js").TileCoord}
+ */
+
+ _this.wrappedTileCoord = urlTileCoord;
+ return _this;
+ }
+ /**
+ * @param {import("./layer/Layer.js").default} layer Layer.
+ * @return {CanvasRenderingContext2D} The rendering context.
+ */
+
+
+ VectorRenderTile.prototype.getContext = function (layer) {
+ var key = (0, _util.getUid)(layer);
+
+ if (!(key in this.context_)) {
+ this.context_[key] = (0, _dom.createCanvasContext2D)(1, 1, canvasPool);
+ }
+
+ return this.context_[key];
+ };
+ /**
+ * @param {import("./layer/Layer.js").default} layer Layer.
+ * @return {boolean} Tile has a rendering context for the given layer.
+ */
+
+
+ VectorRenderTile.prototype.hasContext = function (layer) {
+ return (0, _util.getUid)(layer) in this.context_;
+ };
+ /**
+ * Get the Canvas for this tile.
+ * @param {import("./layer/Layer.js").default} layer Layer.
+ * @return {HTMLCanvasElement} Canvas.
+ */
+
+
+ VectorRenderTile.prototype.getImage = function (layer) {
+ return this.hasContext(layer) ? this.getContext(layer).canvas : null;
+ };
+ /**
+ * @param {import("./layer/Layer.js").default} layer Layer.
+ * @return {ReplayState} The replay state.
+ */
+
+
+ VectorRenderTile.prototype.getReplayState = function (layer) {
+ var key = (0, _util.getUid)(layer);
+
+ if (!(key in this.replayState_)) {
+ this.replayState_[key] = {
+ dirty: false,
+ renderedRenderOrder: null,
+ renderedResolution: NaN,
+ renderedRevision: -1,
+ renderedTileResolution: NaN,
+ renderedTileRevision: -1,
+ renderedZ: -1,
+ renderedTileZ: -1
+ };
+ }
+
+ return this.replayState_[key];
+ };
+ /**
+ * Load the tile.
+ */
+
+
+ VectorRenderTile.prototype.load = function () {
+ this.getSourceTiles();
+ };
+ /**
+ * Remove from the cache due to expiry
+ */
+
+
+ VectorRenderTile.prototype.release = function () {
+ for (var key in this.context_) {
+ canvasPool.push(this.context_[key].canvas);
+ }
+
+ _super.prototype.release.call(this);
+ };
+
+ return VectorRenderTile;
+}(_Tile.default);
+
+var _default = VectorRenderTile;
+exports.default = _default;
+},{"./Tile.js":"../../../node_modules/ol/Tile.js","./dom.js":"../../../node_modules/ol/dom.js","./util.js":"../../../node_modules/ol/util.js"}],"../../../node_modules/ol/VectorTile.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Tile = _interopRequireDefault(require("./Tile.js"));
+
+var _TileState = _interopRequireDefault(require("./TileState.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/VectorTile
+ */
+
+
+var VectorTile =
+/** @class */
+function (_super) {
+ __extends(VectorTile, _super);
+ /**
+ * @param {import("./tilecoord.js").TileCoord} tileCoord Tile coordinate.
+ * @param {import("./TileState.js").default} state State.
+ * @param {string} src Data source url.
+ * @param {import("./format/Feature.js").default} format Feature format.
+ * @param {import("./Tile.js").LoadFunction} tileLoadFunction Tile load function.
+ * @param {import("./Tile.js").Options=} opt_options Tile options.
+ */
+
+
+ function VectorTile(tileCoord, state, src, format, tileLoadFunction, opt_options) {
+ var _this = _super.call(this, tileCoord, state, opt_options) || this;
+ /**
+ * Extent of this tile; set by the source.
+ * @type {import("./extent.js").Extent}
+ */
+
+
+ _this.extent = null;
+ /**
+ * @private
+ * @type {import("./format/Feature.js").default}
+ */
+
+ _this.format_ = format;
+ /**
+ * @private
+ * @type {Array<import("./Feature.js").default>}
+ */
+
+ _this.features_ = null;
+ /**
+ * @private
+ * @type {import("./featureloader.js").FeatureLoader}
+ */
+
+ _this.loader_;
+ /**
+ * Feature projection of this tile; set by the source.
+ * @type {import("./proj/Projection.js").default}
+ */
+
+ _this.projection = null;
+ /**
+ * Resolution of this tile; set by the source.
+ * @type {number}
+ */
+
+ _this.resolution;
+ /**
+ * @private
+ * @type {import("./Tile.js").LoadFunction}
+ */
+
+ _this.tileLoadFunction_ = tileLoadFunction;
+ /**
+ * @private
+ * @type {string}
+ */
+
+ _this.url_ = src;
+ return _this;
+ }
+ /**
+ * Get the feature format assigned for reading this tile's features.
+ * @return {import("./format/Feature.js").default} Feature format.
+ * @api
+ */
+
+
+ VectorTile.prototype.getFormat = function () {
+ return this.format_;
+ };
+ /**
+ * Get the features for this tile. Geometries will be in the view projection.
+ * @return {Array<import("./Feature.js").FeatureLike>} Features.
+ * @api
+ */
+
+
+ VectorTile.prototype.getFeatures = function () {
+ return this.features_;
+ };
+ /**
+ * @return {string} Key.
+ */
+
+
+ VectorTile.prototype.getKey = function () {
+ return this.url_;
+ };
+ /**
+ * Load not yet loaded URI.
+ */
+
+
+ VectorTile.prototype.load = function () {
+ if (this.state == _TileState.default.IDLE) {
+ this.setState(_TileState.default.LOADING);
+ this.tileLoadFunction_(this, this.url_);
+
+ if (this.loader_) {
+ this.loader_(this.extent, this.resolution, this.projection);
+ }
+ }
+ };
+ /**
+ * Handler for successful tile load.
+ * @param {Array<import("./Feature.js").default>} features The loaded features.
+ * @param {import("./proj/Projection.js").default} dataProjection Data projection.
+ */
+
+
+ VectorTile.prototype.onLoad = function (features, dataProjection) {
+ this.setFeatures(features);
+ };
+ /**
+ * Handler for tile load errors.
+ */
+
+
+ VectorTile.prototype.onError = function () {
+ this.setState(_TileState.default.ERROR);
+ };
+ /**
+ * Function for use in an {@link module:ol/source/VectorTile~VectorTile}'s `tileLoadFunction`.
+ * Sets the features for the tile.
+ * @param {Array<import("./Feature.js").default>} features Features.
+ * @api
+ */
+
+
+ VectorTile.prototype.setFeatures = function (features) {
+ this.features_ = features;
+ this.setState(_TileState.default.LOADED);
+ };
+ /**
+ * Set the feature loader for reading this tile's features.
+ * @param {import("./featureloader.js").FeatureLoader} loader Feature loader.
+ * @api
+ */
+
+
+ VectorTile.prototype.setLoader = function (loader) {
+ this.loader_ = loader;
+ };
+
+ return VectorTile;
+}(_Tile.default);
+
+var _default = VectorTile;
+exports.default = _default;
+},{"./Tile.js":"../../../node_modules/ol/Tile.js","./TileState.js":"../../../node_modules/ol/TileState.js"}],"../../../node_modules/ol/index.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+Object.defineProperty(exports, "AssertionError", {
+ enumerable: true,
+ get: function () {
+ return _AssertionError.default;
+ }
+});
+Object.defineProperty(exports, "Collection", {
+ enumerable: true,
+ get: function () {
+ return _Collection.default;
+ }
+});
+Object.defineProperty(exports, "Disposable", {
+ enumerable: true,
+ get: function () {
+ return _Disposable.default;
+ }
+});
+Object.defineProperty(exports, "Feature", {
+ enumerable: true,
+ get: function () {
+ return _Feature.default;
+ }
+});
+Object.defineProperty(exports, "Geolocation", {
+ enumerable: true,
+ get: function () {
+ return _Geolocation.default;
+ }
+});
+Object.defineProperty(exports, "Graticule", {
+ enumerable: true,
+ get: function () {
+ return _Graticule.default;
+ }
+});
+Object.defineProperty(exports, "Image", {
+ enumerable: true,
+ get: function () {
+ return _Image.default;
+ }
+});
+Object.defineProperty(exports, "ImageBase", {
+ enumerable: true,
+ get: function () {
+ return _ImageBase.default;
+ }
+});
+Object.defineProperty(exports, "ImageCanvas", {
+ enumerable: true,
+ get: function () {
+ return _ImageCanvas.default;
+ }
+});
+Object.defineProperty(exports, "ImageTile", {
+ enumerable: true,
+ get: function () {
+ return _ImageTile.default;
+ }
+});
+Object.defineProperty(exports, "Kinetic", {
+ enumerable: true,
+ get: function () {
+ return _Kinetic.default;
+ }
+});
+Object.defineProperty(exports, "Map", {
+ enumerable: true,
+ get: function () {
+ return _Map.default;
+ }
+});
+Object.defineProperty(exports, "MapBrowserEvent", {
+ enumerable: true,
+ get: function () {
+ return _MapBrowserEvent.default;
+ }
+});
+Object.defineProperty(exports, "MapBrowserEventHandler", {
+ enumerable: true,
+ get: function () {
+ return _MapBrowserEventHandler.default;
+ }
+});
+Object.defineProperty(exports, "MapEvent", {
+ enumerable: true,
+ get: function () {
+ return _MapEvent.default;
+ }
+});
+Object.defineProperty(exports, "Object", {
+ enumerable: true,
+ get: function () {
+ return _Object.default;
+ }
+});
+Object.defineProperty(exports, "Observable", {
+ enumerable: true,
+ get: function () {
+ return _Observable.default;
+ }
+});
+Object.defineProperty(exports, "Overlay", {
+ enumerable: true,
+ get: function () {
+ return _Overlay.default;
+ }
+});
+Object.defineProperty(exports, "PluggableMap", {
+ enumerable: true,
+ get: function () {
+ return _PluggableMap.default;
+ }
+});
+Object.defineProperty(exports, "Tile", {
+ enumerable: true,
+ get: function () {
+ return _Tile.default;
+ }
+});
+Object.defineProperty(exports, "TileCache", {
+ enumerable: true,
+ get: function () {
+ return _TileCache.default;
+ }
+});
+Object.defineProperty(exports, "TileQueue", {
+ enumerable: true,
+ get: function () {
+ return _TileQueue.default;
+ }
+});
+Object.defineProperty(exports, "TileRange", {
+ enumerable: true,
+ get: function () {
+ return _TileRange.default;
+ }
+});
+Object.defineProperty(exports, "VectorRenderTile", {
+ enumerable: true,
+ get: function () {
+ return _VectorRenderTile.default;
+ }
+});
+Object.defineProperty(exports, "VectorTile", {
+ enumerable: true,
+ get: function () {
+ return _VectorTile.default;
+ }
+});
+Object.defineProperty(exports, "View", {
+ enumerable: true,
+ get: function () {
+ return _View.default;
+ }
+});
+Object.defineProperty(exports, "getUid", {
+ enumerable: true,
+ get: function () {
+ return _util.getUid;
+ }
+});
+Object.defineProperty(exports, "VERSION", {
+ enumerable: true,
+ get: function () {
+ return _util.VERSION;
+ }
+});
+
+var _AssertionError = _interopRequireDefault(require("./AssertionError.js"));
+
+var _Collection = _interopRequireDefault(require("./Collection.js"));
+
+var _Disposable = _interopRequireDefault(require("./Disposable.js"));
+
+var _Feature = _interopRequireDefault(require("./Feature.js"));
+
+var _Geolocation = _interopRequireDefault(require("./Geolocation.js"));
+
+var _Graticule = _interopRequireDefault(require("./layer/Graticule.js"));
+
+var _Image = _interopRequireDefault(require("./Image.js"));
+
+var _ImageBase = _interopRequireDefault(require("./ImageBase.js"));
+
+var _ImageCanvas = _interopRequireDefault(require("./ImageCanvas.js"));
+
+var _ImageTile = _interopRequireDefault(require("./ImageTile.js"));
+
+var _Kinetic = _interopRequireDefault(require("./Kinetic.js"));
+
+var _Map = _interopRequireDefault(require("./Map.js"));
+
+var _MapBrowserEvent = _interopRequireDefault(require("./MapBrowserEvent.js"));
+
+var _MapBrowserEventHandler = _interopRequireDefault(require("./MapBrowserEventHandler.js"));
+
+var _MapEvent = _interopRequireDefault(require("./MapEvent.js"));
+
+var _Object = _interopRequireDefault(require("./Object.js"));
+
+var _Observable = _interopRequireDefault(require("./Observable.js"));
+
+var _Overlay = _interopRequireDefault(require("./Overlay.js"));
+
+var _PluggableMap = _interopRequireDefault(require("./PluggableMap.js"));
+
+var _Tile = _interopRequireDefault(require("./Tile.js"));
+
+var _TileCache = _interopRequireDefault(require("./TileCache.js"));
+
+var _TileQueue = _interopRequireDefault(require("./TileQueue.js"));
+
+var _TileRange = _interopRequireDefault(require("./TileRange.js"));
+
+var _VectorRenderTile = _interopRequireDefault(require("./VectorRenderTile.js"));
+
+var _VectorTile = _interopRequireDefault(require("./VectorTile.js"));
+
+var _View = _interopRequireDefault(require("./View.js"));
+
+var _util = require("./util.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+},{"./AssertionError.js":"../../../node_modules/ol/AssertionError.js","./Collection.js":"../../../node_modules/ol/Collection.js","./Disposable.js":"../../../node_modules/ol/Disposable.js","./Feature.js":"../../../node_modules/ol/Feature.js","./Geolocation.js":"../../../node_modules/ol/Geolocation.js","./layer/Graticule.js":"../../../node_modules/ol/layer/Graticule.js","./Image.js":"../../../node_modules/ol/Image.js","./ImageBase.js":"../../../node_modules/ol/ImageBase.js","./ImageCanvas.js":"../../../node_modules/ol/ImageCanvas.js","./ImageTile.js":"../../../node_modules/ol/ImageTile.js","./Kinetic.js":"../../../node_modules/ol/Kinetic.js","./Map.js":"../../../node_modules/ol/Map.js","./MapBrowserEvent.js":"../../../node_modules/ol/MapBrowserEvent.js","./MapBrowserEventHandler.js":"../../../node_modules/ol/MapBrowserEventHandler.js","./MapEvent.js":"../../../node_modules/ol/MapEvent.js","./Object.js":"../../../node_modules/ol/Object.js","./Observable.js":"../../../node_modules/ol/Observable.js","./Overlay.js":"../../../node_modules/ol/Overlay.js","./PluggableMap.js":"../../../node_modules/ol/PluggableMap.js","./Tile.js":"../../../node_modules/ol/Tile.js","./TileCache.js":"../../../node_modules/ol/TileCache.js","./TileQueue.js":"../../../node_modules/ol/TileQueue.js","./TileRange.js":"../../../node_modules/ol/TileRange.js","./VectorRenderTile.js":"../../../node_modules/ol/VectorRenderTile.js","./VectorTile.js":"../../../node_modules/ol/VectorTile.js","./View.js":"../../../node_modules/ol/View.js","./util.js":"../../../node_modules/ol/util.js"}],"../../../node_modules/ol/layer/TileProperty.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+/**
+ * @module ol/layer/TileProperty
+ */
+
+/**
+ * @enum {string}
+ */
+var _default = {
+ PRELOAD: 'preload',
+ USE_INTERIM_TILES_ON_ERROR: 'useInterimTilesOnError'
+};
+exports.default = _default;
+},{}],"../../../node_modules/ol/layer/BaseTile.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Layer = _interopRequireDefault(require("./Layer.js"));
+
+var _TileProperty = _interopRequireDefault(require("./TileProperty.js"));
+
+var _obj = require("../obj.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/layer/BaseTile
+ */
+
+
+/**
+ * @typedef {Object} Options
+ * @property {string} [className='ol-layer'] A CSS class name to set to the layer element.
+ * @property {number} [opacity=1] Opacity (0, 1).
+ * @property {boolean} [visible=true] Visibility.
+ * @property {import("../extent.js").Extent} [extent] The bounding extent for layer rendering. The layer will not be
+ * rendered outside of this extent.
+ * @property {number} [zIndex] The z-index for layer rendering. At rendering time, the layers
+ * will be ordered, first by Z-index and then by position. When `undefined`, a `zIndex` of 0 is assumed
+ * for layers that are added to the map's `layers` collection, or `Infinity` when the layer's `setMap()`
+ * method was used.
+ * @property {number} [minResolution] The minimum resolution (inclusive) at which this layer will be
+ * visible.
+ * @property {number} [maxResolution] The maximum resolution (exclusive) below which this layer will
+ * be visible.
+ * @property {number} [minZoom] The minimum view zoom level (exclusive) above which this layer will be
+ * visible.
+ * @property {number} [maxZoom] The maximum view zoom level (inclusive) at which this layer will
+ * be visible.
+ * @property {number} [preload=0] Preload. Load low-resolution tiles up to `preload` levels. `0`
+ * means no preloading.
+ * @property {import("../source/Tile.js").default} [source] Source for this layer.
+ * @property {import("../PluggableMap.js").default} [map] Sets the layer as overlay on a map. The map will not manage
+ * this layer in its layers collection, and the layer will be rendered on top. This is useful for
+ * temporary layers. The standard way to add a layer to a map and have it managed by the map is to
+ * use {@link module:ol/Map#addLayer}.
+ * @property {boolean} [useInterimTilesOnError=true] Use interim tiles on error.
+ */
+
+/**
+ * @classdesc
+ * For layer sources that provide pre-rendered, tiled images in grids that are
+ * organized by zoom levels for specific resolutions.
+ * Note that any property set in the options is set as a {@link module:ol/Object~BaseObject}
+ * property on the layer object; for example, setting `title: 'My Title'` in the
+ * options means that `title` is observable, and has get/set accessors.
+ *
+ * @extends {Layer<import("../source/Tile.js").default>}
+ * @api
+ */
+var BaseTileLayer =
+/** @class */
+function (_super) {
+ __extends(BaseTileLayer, _super);
+ /**
+ * @param {Options=} opt_options Tile layer options.
+ */
+
+
+ function BaseTileLayer(opt_options) {
+ var _this = this;
+
+ var options = opt_options ? opt_options : {};
+ var baseOptions = (0, _obj.assign)({}, options);
+ delete baseOptions.preload;
+ delete baseOptions.useInterimTilesOnError;
+ _this = _super.call(this, baseOptions) || this;
+
+ _this.setPreload(options.preload !== undefined ? options.preload : 0);
+
+ _this.setUseInterimTilesOnError(options.useInterimTilesOnError !== undefined ? options.useInterimTilesOnError : true);
+
+ return _this;
+ }
+ /**
+ * Return the level as number to which we will preload tiles up to.
+ * @return {number} The level to preload tiles up to.
+ * @observable
+ * @api
+ */
+
+
+ BaseTileLayer.prototype.getPreload = function () {
+ return (
+ /** @type {number} */
+ this.get(_TileProperty.default.PRELOAD)
+ );
+ };
+ /**
+ * Set the level as number to which we will preload tiles up to.
+ * @param {number} preload The level to preload tiles up to.
+ * @observable
+ * @api
+ */
+
+
+ BaseTileLayer.prototype.setPreload = function (preload) {
+ this.set(_TileProperty.default.PRELOAD, preload);
+ };
+ /**
+ * Whether we use interim tiles on error.
+ * @return {boolean} Use interim tiles on error.
+ * @observable
+ * @api
+ */
+
+
+ BaseTileLayer.prototype.getUseInterimTilesOnError = function () {
+ return (
+ /** @type {boolean} */
+ this.get(_TileProperty.default.USE_INTERIM_TILES_ON_ERROR)
+ );
+ };
+ /**
+ * Set whether we use interim tiles on error.
+ * @param {boolean} useInterimTilesOnError Use interim tiles on error.
+ * @observable
+ * @api
+ */
+
+
+ BaseTileLayer.prototype.setUseInterimTilesOnError = function (useInterimTilesOnError) {
+ this.set(_TileProperty.default.USE_INTERIM_TILES_ON_ERROR, useInterimTilesOnError);
+ };
+
+ return BaseTileLayer;
+}(_Layer.default);
+
+var _default = BaseTileLayer;
+exports.default = _default;
+},{"./Layer.js":"../../../node_modules/ol/layer/Layer.js","./TileProperty.js":"../../../node_modules/ol/layer/TileProperty.js","../obj.js":"../../../node_modules/ol/obj.js"}],"../../../node_modules/ol/renderer/canvas/TileLayer.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _Layer = _interopRequireDefault(require("./Layer.js"));
+
+var _TileRange = _interopRequireDefault(require("../../TileRange.js"));
+
+var _TileState = _interopRequireDefault(require("../../TileState.js"));
+
+var _transform = require("../../transform.js");
+
+var _obj = require("../../obj.js");
+
+var _extent = require("../../extent.js");
+
+var _canvas = require("../../render/canvas.js");
+
+var _proj = require("../../proj.js");
+
+var _util = require("../../util.js");
+
+var _array = require("../../array.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/renderer/canvas/TileLayer
+ */
+
+
+/**
+ * @classdesc
+ * Canvas renderer for tile layers.
+ * @api
+ */
+var CanvasTileLayerRenderer =
+/** @class */
+function (_super) {
+ __extends(CanvasTileLayerRenderer, _super);
+ /**
+ * @param {import("../../layer/Tile.js").default|import("../../layer/VectorTile.js").default} tileLayer Tile layer.
+ */
+
+
+ function CanvasTileLayerRenderer(tileLayer) {
+ var _this = _super.call(this, tileLayer) || this;
+ /**
+ * Rendered extent has changed since the previous `renderFrame()` call
+ * @type {boolean}
+ */
+
+
+ _this.extentChanged = true;
+ /**
+ * @private
+ * @type {?import("../../extent.js").Extent}
+ */
+
+ _this.renderedExtent_ = null;
+ /**
+ * @protected
+ * @type {number}
+ */
+
+ _this.renderedPixelRatio;
+ /**
+ * @protected
+ * @type {import("../../proj/Projection.js").default}
+ */
+
+ _this.renderedProjection = null;
+ /**
+ * @protected
+ * @type {number}
+ */
+
+ _this.renderedRevision;
+ /**
+ * @protected
+ * @type {!Array<import("../../Tile.js").default>}
+ */
+
+ _this.renderedTiles = [];
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ _this.newTiles_ = false;
+ /**
+ * @protected
+ * @type {import("../../extent.js").Extent}
+ */
+
+ _this.tmpExtent = (0, _extent.createEmpty)();
+ /**
+ * @private
+ * @type {import("../../TileRange.js").default}
+ */
+
+ _this.tmpTileRange_ = new _TileRange.default(0, 0, 0, 0);
+ return _this;
+ }
+ /**
+ * @protected
+ * @param {import("../../Tile.js").default} tile Tile.
+ * @return {boolean} Tile is drawable.
+ */
+
+
+ CanvasTileLayerRenderer.prototype.isDrawableTile = function (tile) {
+ var tileLayer = this.getLayer();
+ var tileState = tile.getState();
+ var useInterimTilesOnError = tileLayer.getUseInterimTilesOnError();
+ return tileState == _TileState.default.LOADED || tileState == _TileState.default.EMPTY || tileState == _TileState.default.ERROR && !useInterimTilesOnError;
+ };
+ /**
+ * @param {number} z Tile coordinate z.
+ * @param {number} x Tile coordinate x.
+ * @param {number} y Tile coordinate y.
+ * @param {import("../../PluggableMap.js").FrameState} frameState Frame state.
+ * @return {!import("../../Tile.js").default} Tile.
+ */
+
+
+ CanvasTileLayerRenderer.prototype.getTile = function (z, x, y, frameState) {
+ var pixelRatio = frameState.pixelRatio;
+ var projection = frameState.viewState.projection;
+ var tileLayer = this.getLayer();
+ var tileSource = tileLayer.getSource();
+ var tile = tileSource.getTile(z, x, y, pixelRatio, projection);
+
+ if (tile.getState() == _TileState.default.ERROR) {
+ if (!tileLayer.getUseInterimTilesOnError()) {
+ // When useInterimTilesOnError is false, we consider the error tile as loaded.
+ tile.setState(_TileState.default.LOADED);
+ } else if (tileLayer.getPreload() > 0) {
+ // Preloaded tiles for lower resolutions might have finished loading.
+ this.newTiles_ = true;
+ }
+ }
+
+ if (!this.isDrawableTile(tile)) {
+ tile = tile.getInterimTile();
+ }
+
+ return tile;
+ };
+ /**
+ * @param {Object<number, Object<string, import("../../Tile.js").default>>} tiles Lookup of loaded tiles by zoom level.
+ * @param {number} zoom Zoom level.
+ * @param {import("../../Tile.js").default} tile Tile.
+ * @return {boolean|void} If `false`, the tile will not be considered loaded.
+ */
+
+
+ CanvasTileLayerRenderer.prototype.loadedTileCallback = function (tiles, zoom, tile) {
+ if (this.isDrawableTile(tile)) {
+ return _super.prototype.loadedTileCallback.call(this, tiles, zoom, tile);
+ }
+
+ return false;
+ };
+ /**
+ * Determine whether render should be called.
+ * @param {import("../../PluggableMap.js").FrameState} frameState Frame state.
+ * @return {boolean} Layer is ready to be rendered.
+ */
+
+
+ CanvasTileLayerRenderer.prototype.prepareFrame = function (frameState) {
+ return !!this.getLayer().getSource();
+ };
+ /**
+ * Render the layer.
+ * @param {import("../../PluggableMap.js").FrameState} frameState Frame state.
+ * @param {HTMLElement} target Target that may be used to render content to.
+ * @return {HTMLElement} The rendered element.
+ */
+
+
+ CanvasTileLayerRenderer.prototype.renderFrame = function (frameState, target) {
+ var layerState = frameState.layerStatesArray[frameState.layerIndex];
+ var viewState = frameState.viewState;
+ var projection = viewState.projection;
+ var viewResolution = viewState.resolution;
+ var viewCenter = viewState.center;
+ var rotation = viewState.rotation;
+ var pixelRatio = frameState.pixelRatio;
+ var tileLayer = this.getLayer();
+ var tileSource = tileLayer.getSource();
+ var sourceRevision = tileSource.getRevision();
+ var tileGrid = tileSource.getTileGridForProjection(projection);
+ var z = tileGrid.getZForResolution(viewResolution, tileSource.zDirection);
+ var tileResolution = tileGrid.getResolution(z);
+ var extent = frameState.extent;
+ var layerExtent = layerState.extent && (0, _proj.fromUserExtent)(layerState.extent, projection);
+
+ if (layerExtent) {
+ extent = (0, _extent.getIntersection)(extent, (0, _proj.fromUserExtent)(layerState.extent, projection));
+ }
+
+ var tilePixelRatio = tileSource.getTilePixelRatio(pixelRatio); // desired dimensions of the canvas in pixels
+
+ var width = Math.round(frameState.size[0] * tilePixelRatio);
+ var height = Math.round(frameState.size[1] * tilePixelRatio);
+
+ if (rotation) {
+ var size = Math.round(Math.sqrt(width * width + height * height));
+ width = size;
+ height = size;
+ }
+
+ var dx = tileResolution * width / 2 / tilePixelRatio;
+ var dy = tileResolution * height / 2 / tilePixelRatio;
+ var canvasExtent = [viewCenter[0] - dx, viewCenter[1] - dy, viewCenter[0] + dx, viewCenter[1] + dy];
+ var tileRange = tileGrid.getTileRangeForExtentAndZ(extent, z);
+ /**
+ * @type {Object<number, Object<string, import("../../Tile.js").default>>}
+ */
+
+ var tilesToDrawByZ = {};
+ tilesToDrawByZ[z] = {};
+ var findLoadedTiles = this.createLoadedTileFinder(tileSource, projection, tilesToDrawByZ);
+ var tmpExtent = this.tmpExtent;
+ var tmpTileRange = this.tmpTileRange_;
+ this.newTiles_ = false;
+
+ for (var x = tileRange.minX; x <= tileRange.maxX; ++x) {
+ for (var y = tileRange.minY; y <= tileRange.maxY; ++y) {
+ var tile = this.getTile(z, x, y, frameState);
+
+ if (this.isDrawableTile(tile)) {
+ var uid = (0, _util.getUid)(this);
+
+ if (tile.getState() == _TileState.default.LOADED) {
+ tilesToDrawByZ[z][tile.tileCoord.toString()] = tile;
+ var inTransition = tile.inTransition(uid);
+
+ if (!this.newTiles_ && (inTransition || this.renderedTiles.indexOf(tile) === -1)) {
+ this.newTiles_ = true;
+ }
+ }
+
+ if (tile.getAlpha(uid, frameState.time) === 1) {
+ // don't look for alt tiles if alpha is 1
+ continue;
+ }
+ }
+
+ var childTileRange = tileGrid.getTileCoordChildTileRange(tile.tileCoord, tmpTileRange, tmpExtent);
+ var covered = false;
+
+ if (childTileRange) {
+ covered = findLoadedTiles(z + 1, childTileRange);
+ }
+
+ if (!covered) {
+ tileGrid.forEachTileCoordParentTileRange(tile.tileCoord, findLoadedTiles, tmpTileRange, tmpExtent);
+ }
+ }
+ }
+
+ var canvasScale = tileResolution / viewResolution; // set forward and inverse pixel transforms
+
+ (0, _transform.compose)(this.pixelTransform, frameState.size[0] / 2, frameState.size[1] / 2, 1 / tilePixelRatio, 1 / tilePixelRatio, rotation, -width / 2, -height / 2);
+ var canvasTransform = (0, _canvas.createTransformString)(this.pixelTransform);
+ this.useContainer(target, canvasTransform, layerState.opacity);
+ var context = this.context;
+ var canvas = context.canvas;
+ (0, _transform.makeInverse)(this.inversePixelTransform, this.pixelTransform); // set scale transform for calculating tile positions on the canvas
+
+ (0, _transform.compose)(this.tempTransform, width / 2, height / 2, canvasScale, canvasScale, 0, -width / 2, -height / 2);
+
+ if (canvas.width != width || canvas.height != height) {
+ canvas.width = width;
+ canvas.height = height;
+ } else if (!this.containerReused) {
+ context.clearRect(0, 0, width, height);
+ }
+
+ if (layerExtent) {
+ this.clipUnrotated(context, frameState, layerExtent);
+ }
+
+ (0, _obj.assign)(context, tileSource.getContextOptions());
+ this.preRender(context, frameState);
+ this.renderedTiles.length = 0;
+ /** @type {Array<number>} */
+
+ var zs = Object.keys(tilesToDrawByZ).map(Number);
+ zs.sort(_array.numberSafeCompareFunction);
+ var clips, clipZs, currentClip;
+
+ if (layerState.opacity === 1 && (!this.containerReused || tileSource.getOpaque(frameState.viewState.projection))) {
+ zs = zs.reverse();
+ } else {
+ clips = [];
+ clipZs = [];
+ }
+
+ for (var i = zs.length - 1; i >= 0; --i) {
+ var currentZ = zs[i];
+ var currentTilePixelSize = tileSource.getTilePixelSize(currentZ, pixelRatio, projection);
+ var currentResolution = tileGrid.getResolution(currentZ);
+ var currentScale = currentResolution / tileResolution;
+ var dx_1 = currentTilePixelSize[0] * currentScale * canvasScale;
+ var dy_1 = currentTilePixelSize[1] * currentScale * canvasScale;
+ var originTileCoord = tileGrid.getTileCoordForCoordAndZ((0, _extent.getTopLeft)(canvasExtent), currentZ);
+ var originTileExtent = tileGrid.getTileCoordExtent(originTileCoord);
+ var origin_1 = (0, _transform.apply)(this.tempTransform, [tilePixelRatio * (originTileExtent[0] - canvasExtent[0]) / tileResolution, tilePixelRatio * (canvasExtent[3] - originTileExtent[3]) / tileResolution]);
+ var tileGutter = tilePixelRatio * tileSource.getGutterForProjection(projection);
+ var tilesToDraw = tilesToDrawByZ[currentZ];
+
+ for (var tileCoordKey in tilesToDraw) {
+ var tile =
+ /** @type {import("../../ImageTile.js").default} */
+ tilesToDraw[tileCoordKey];
+ var tileCoord = tile.tileCoord; // Calculate integer positions and sizes so that tiles align
+
+ var floatX = origin_1[0] - (originTileCoord[1] - tileCoord[1]) * dx_1;
+ var nextX = Math.round(floatX + dx_1);
+ var floatY = origin_1[1] - (originTileCoord[2] - tileCoord[2]) * dy_1;
+ var nextY = Math.round(floatY + dy_1);
+ var x = Math.round(floatX);
+ var y = Math.round(floatY);
+ var w = nextX - x;
+ var h = nextY - y;
+ var transition = z === currentZ;
+ var inTransition = transition && tile.getAlpha((0, _util.getUid)(this), frameState.time) !== 1;
+
+ if (!inTransition) {
+ if (clips) {
+ // Clip mask for regions in this tile that already filled by a higher z tile
+ context.save();
+ currentClip = [x, y, x + w, y, x + w, y + h, x, y + h];
+
+ for (var i_1 = 0, ii = clips.length; i_1 < ii; ++i_1) {
+ if (z !== currentZ && currentZ < clipZs[i_1]) {
+ var clip = clips[i_1];
+ context.beginPath(); // counter-clockwise (outer ring) for current tile
+
+ context.moveTo(currentClip[0], currentClip[1]);
+ context.lineTo(currentClip[2], currentClip[3]);
+ context.lineTo(currentClip[4], currentClip[5]);
+ context.lineTo(currentClip[6], currentClip[7]); // clockwise (inner ring) for higher z tile
+
+ context.moveTo(clip[6], clip[7]);
+ context.lineTo(clip[4], clip[5]);
+ context.lineTo(clip[2], clip[3]);
+ context.lineTo(clip[0], clip[1]);
+ context.clip();
+ }
+ }
+
+ clips.push(currentClip);
+ clipZs.push(currentZ);
+ } else {
+ context.clearRect(x, y, w, h);
+ }
+ }
+
+ this.drawTileImage(tile, frameState, x, y, w, h, tileGutter, transition, layerState.opacity);
+
+ if (clips && !inTransition) {
+ context.restore();
+ }
+
+ this.renderedTiles.push(tile);
+ this.updateUsedTiles(frameState.usedTiles, tileSource, tile);
+ }
+ }
+
+ this.renderedRevision = sourceRevision;
+ this.renderedResolution = tileResolution;
+ this.extentChanged = !this.renderedExtent_ || !(0, _extent.equals)(this.renderedExtent_, canvasExtent);
+ this.renderedExtent_ = canvasExtent;
+ this.renderedPixelRatio = pixelRatio;
+ this.renderedProjection = projection;
+ this.manageTilePyramid(frameState, tileSource, tileGrid, pixelRatio, projection, extent, z, tileLayer.getPreload());
+ this.scheduleExpireCache(frameState, tileSource);
+ this.postRender(context, frameState);
+
+ if (layerState.extent) {
+ context.restore();
+ }
+
+ if (canvasTransform !== canvas.style.transform) {
+ canvas.style.transform = canvasTransform;
+ }
+
+ return this.container;
+ };
+ /**
+ * @param {import("../../ImageTile.js").default} tile Tile.
+ * @param {import("../../PluggableMap.js").FrameState} frameState Frame state.
+ * @param {number} x Left of the tile.
+ * @param {number} y Top of the tile.
+ * @param {number} w Width of the tile.
+ * @param {number} h Height of the tile.
+ * @param {number} gutter Tile gutter.
+ * @param {boolean} transition Apply an alpha transition.
+ * @param {number} opacity Opacity.
+ */
+
+
+ CanvasTileLayerRenderer.prototype.drawTileImage = function (tile, frameState, x, y, w, h, gutter, transition, opacity) {
+ var image = this.getTileImage(tile);
+
+ if (!image) {
+ return;
+ }
+
+ var uid = (0, _util.getUid)(this);
+ var tileAlpha = transition ? tile.getAlpha(uid, frameState.time) : 1;
+ var alpha = opacity * tileAlpha;
+ var alphaChanged = alpha !== this.context.globalAlpha;
+
+ if (alphaChanged) {
+ this.context.save();
+ this.context.globalAlpha = alpha;
+ }
+
+ this.context.drawImage(image, gutter, gutter, image.width - 2 * gutter, image.height - 2 * gutter, x, y, w, h);
+
+ if (alphaChanged) {
+ this.context.restore();
+ }
+
+ if (tileAlpha !== 1) {
+ frameState.animate = true;
+ } else if (transition) {
+ tile.endTransition(uid);
+ }
+ };
+ /**
+ * @return {HTMLCanvasElement} Image
+ */
+
+
+ CanvasTileLayerRenderer.prototype.getImage = function () {
+ var context = this.context;
+ return context ? context.canvas : null;
+ };
+ /**
+ * Get the image from a tile.
+ * @param {import("../../ImageTile.js").default} tile Tile.
+ * @return {HTMLCanvasElement|HTMLImageElement|HTMLVideoElement} Image.
+ * @protected
+ */
+
+
+ CanvasTileLayerRenderer.prototype.getTileImage = function (tile) {
+ return tile.getImage();
+ };
+ /**
+ * @param {import("../../PluggableMap.js").FrameState} frameState Frame state.
+ * @param {import("../../source/Tile.js").default} tileSource Tile source.
+ * @protected
+ */
+
+
+ CanvasTileLayerRenderer.prototype.scheduleExpireCache = function (frameState, tileSource) {
+ if (tileSource.canExpireCache()) {
+ /**
+ * @param {import("../../source/Tile.js").default} tileSource Tile source.
+ * @param {import("../../PluggableMap.js").default} map Map.
+ * @param {import("../../PluggableMap.js").FrameState} frameState Frame state.
+ */
+ var postRenderFunction = function (tileSource, map, frameState) {
+ var tileSourceKey = (0, _util.getUid)(tileSource);
+
+ if (tileSourceKey in frameState.usedTiles) {
+ tileSource.expireCache(frameState.viewState.projection, frameState.usedTiles[tileSourceKey]);
+ }
+ }.bind(null, tileSource);
+
+ frameState.postRenderFunctions.push(
+ /** @type {import("../../PluggableMap.js").PostRenderFunction} */
+ postRenderFunction);
+ }
+ };
+ /**
+ * @param {!Object<string, !Object<string, boolean>>} usedTiles Used tiles.
+ * @param {import("../../source/Tile.js").default} tileSource Tile source.
+ * @param {import('../../Tile.js').default} tile Tile.
+ * @protected
+ */
+
+
+ CanvasTileLayerRenderer.prototype.updateUsedTiles = function (usedTiles, tileSource, tile) {
+ // FIXME should we use tilesToDrawByZ instead?
+ var tileSourceKey = (0, _util.getUid)(tileSource);
+
+ if (!(tileSourceKey in usedTiles)) {
+ usedTiles[tileSourceKey] = {};
+ }
+
+ usedTiles[tileSourceKey][tile.getKey()] = true;
+ };
+ /**
+ * Manage tile pyramid.
+ * This function performs a number of functions related to the tiles at the
+ * current zoom and lower zoom levels:
+ * - registers idle tiles in frameState.wantedTiles so that they are not
+ * discarded by the tile queue
+ * - enqueues missing tiles
+ * @param {import("../../PluggableMap.js").FrameState} frameState Frame state.
+ * @param {import("../../source/Tile.js").default} tileSource Tile source.
+ * @param {import("../../tilegrid/TileGrid.js").default} tileGrid Tile grid.
+ * @param {number} pixelRatio Pixel ratio.
+ * @param {import("../../proj/Projection.js").default} projection Projection.
+ * @param {import("../../extent.js").Extent} extent Extent.
+ * @param {number} currentZ Current Z.
+ * @param {number} preload Load low resolution tiles up to 'preload' levels.
+ * @param {function(import("../../Tile.js").default)=} opt_tileCallback Tile callback.
+ * @protected
+ */
+
+
+ CanvasTileLayerRenderer.prototype.manageTilePyramid = function (frameState, tileSource, tileGrid, pixelRatio, projection, extent, currentZ, preload, opt_tileCallback) {
+ var tileSourceKey = (0, _util.getUid)(tileSource);
+
+ if (!(tileSourceKey in frameState.wantedTiles)) {
+ frameState.wantedTiles[tileSourceKey] = {};
+ }
+
+ var wantedTiles = frameState.wantedTiles[tileSourceKey];
+ var tileQueue = frameState.tileQueue;
+ var minZoom = tileGrid.getMinZoom();
+ var tileCount = 0;
+ var tile, tileRange, tileResolution, x, y, z;
+
+ for (z = minZoom; z <= currentZ; ++z) {
+ tileRange = tileGrid.getTileRangeForExtentAndZ(extent, z, tileRange);
+ tileResolution = tileGrid.getResolution(z);
+
+ for (x = tileRange.minX; x <= tileRange.maxX; ++x) {
+ for (y = tileRange.minY; y <= tileRange.maxY; ++y) {
+ if (currentZ - z <= preload) {
+ ++tileCount;
+ tile = tileSource.getTile(z, x, y, pixelRatio, projection);
+
+ if (tile.getState() == _TileState.default.IDLE) {
+ wantedTiles[tile.getKey()] = true;
+
+ if (!tileQueue.isKeyQueued(tile.getKey())) {
+ tileQueue.enqueue([tile, tileSourceKey, tileGrid.getTileCoordCenter(tile.tileCoord), tileResolution]);
+ }
+ }
+
+ if (opt_tileCallback !== undefined) {
+ opt_tileCallback(tile);
+ }
+ } else {
+ tileSource.useTile(z, x, y, projection);
+ }
+ }
+ }
+ }
+
+ tileSource.updateCacheSize(tileCount, projection);
+ };
+
+ return CanvasTileLayerRenderer;
+}(_Layer.default);
+/**
+ * @function
+ * @return {import("../../layer/Tile.js").default|import("../../layer/VectorTile.js").default}
+ */
+
+
+CanvasTileLayerRenderer.prototype.getLayer;
+var _default = CanvasTileLayerRenderer;
+exports.default = _default;
+},{"./Layer.js":"../../../node_modules/ol/renderer/canvas/Layer.js","../../TileRange.js":"../../../node_modules/ol/TileRange.js","../../TileState.js":"../../../node_modules/ol/TileState.js","../../transform.js":"../../../node_modules/ol/transform.js","../../obj.js":"../../../node_modules/ol/obj.js","../../extent.js":"../../../node_modules/ol/extent.js","../../render/canvas.js":"../../../node_modules/ol/render/canvas.js","../../proj.js":"../../../node_modules/ol/proj.js","../../util.js":"../../../node_modules/ol/util.js","../../array.js":"../../../node_modules/ol/array.js"}],"../../../node_modules/ol/layer/Tile.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _BaseTile = _interopRequireDefault(require("./BaseTile.js"));
+
+var _TileLayer = _interopRequireDefault(require("../renderer/canvas/TileLayer.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/layer/Tile
+ */
+
+
+/**
+ * @classdesc
+ * For layer sources that provide pre-rendered, tiled images in grids that are
+ * organized by zoom levels for specific resolutions.
+ * Note that any property set in the options is set as a {@link module:ol/Object~BaseObject}
+ * property on the layer object; for example, setting `title: 'My Title'` in the
+ * options means that `title` is observable, and has get/set accessors.
+ *
+ * @api
+ */
+var TileLayer =
+/** @class */
+function (_super) {
+ __extends(TileLayer, _super);
+ /**
+ * @param {import("./BaseTile.js").Options=} opt_options Tile layer options.
+ */
+
+
+ function TileLayer(opt_options) {
+ return _super.call(this, opt_options) || this;
+ }
+ /**
+ * Create a renderer for this layer.
+ * @return {import("../renderer/Layer.js").default} A layer renderer.
+ * @protected
+ */
+
+
+ TileLayer.prototype.createRenderer = function () {
+ return new _TileLayer.default(this);
+ };
+
+ return TileLayer;
+}(_BaseTile.default);
+
+var _default = TileLayer;
+exports.default = _default;
+},{"./BaseTile.js":"../../../node_modules/ol/layer/BaseTile.js","../renderer/canvas/TileLayer.js":"../../../node_modules/ol/renderer/canvas/TileLayer.js"}],"../../../node_modules/ol/reproj/common.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.ENABLE_RASTER_REPROJECTION = exports.ERROR_THRESHOLD = void 0;
+
+/**
+ * @module ol/reproj/common
+ */
+
+/**
+ * Default maximum allowed threshold (in pixels) for reprojection
+ * triangulation.
+ * @type {number}
+ */
+var ERROR_THRESHOLD = 0.5;
+/**
+ * Enable automatic reprojection of raster sources. Default is `true`.
+ * TODO: decide if we want to expose this as a build flag or remove it
+ * @type {boolean}
+ */
+
+exports.ERROR_THRESHOLD = ERROR_THRESHOLD;
+var ENABLE_RASTER_REPROJECTION = true;
+exports.ENABLE_RASTER_REPROJECTION = ENABLE_RASTER_REPROJECTION;
+},{}],"../../../node_modules/ol/reproj/Triangulation.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _extent = require("../extent.js");
+
+var _proj = require("../proj.js");
+
+var _math = require("../math.js");
+
+/**
+ * @module ol/reproj/Triangulation
+ */
+
+/**
+ * Single triangle; consists of 3 source points and 3 target points.
+ * @typedef {Object} Triangle
+ * @property {Array<import("../coordinate.js").Coordinate>} source
+ * @property {Array<import("../coordinate.js").Coordinate>} target
+ */
+
+/**
+ * Maximum number of subdivision steps during raster reprojection triangulation.
+ * Prevents high memory usage and large number of proj4 calls (for certain
+ * transformations and areas). At most `2*(2^this)` triangles are created for
+ * each triangulated extent (tile/image).
+ * @type {number}
+ */
+var MAX_SUBDIVISION = 10;
+/**
+ * Maximum allowed size of triangle relative to world width. When transforming
+ * corners of world extent between certain projections, the resulting
+ * triangulation seems to have zero error and no subdivision is performed. If
+ * the triangle width is more than this (relative to world width; 0-1),
+ * subdivison is forced (up to `MAX_SUBDIVISION`). Default is `0.25`.
+ * @type {number}
+ */
+
+var MAX_TRIANGLE_WIDTH = 0.25;
+/**
+ * @classdesc
+ * Class containing triangulation of the given target extent.
+ * Used for determining source data and the reprojection itself.
+ */
+
+var Triangulation =
+/** @class */
+function () {
+ /**
+ * @param {import("../proj/Projection.js").default} sourceProj Source projection.
+ * @param {import("../proj/Projection.js").default} targetProj Target projection.
+ * @param {import("../extent.js").Extent} targetExtent Target extent to triangulate.
+ * @param {import("../extent.js").Extent} maxSourceExtent Maximal source extent that can be used.
+ * @param {number} errorThreshold Acceptable error (in source units).
+ * @param {?number} opt_destinationResolution The (optional) resolution of the destination.
+ */
+ function Triangulation(sourceProj, targetProj, targetExtent, maxSourceExtent, errorThreshold, opt_destinationResolution) {
+ /**
+ * @type {import("../proj/Projection.js").default}
+ * @private
+ */
+ this.sourceProj_ = sourceProj;
+ /**
+ * @type {import("../proj/Projection.js").default}
+ * @private
+ */
+
+ this.targetProj_ = targetProj;
+ /** @type {!Object<string, import("../coordinate.js").Coordinate>} */
+
+ var transformInvCache = {};
+ var transformInv = (0, _proj.getTransform)(this.targetProj_, this.sourceProj_);
+ /**
+ * @param {import("../coordinate.js").Coordinate} c A coordinate.
+ * @return {import("../coordinate.js").Coordinate} Transformed coordinate.
+ * @private
+ */
+
+ this.transformInv_ = function (c) {
+ var key = c[0] + '/' + c[1];
+
+ if (!transformInvCache[key]) {
+ transformInvCache[key] = transformInv(c);
+ }
+
+ return transformInvCache[key];
+ };
+ /**
+ * @type {import("../extent.js").Extent}
+ * @private
+ */
+
+
+ this.maxSourceExtent_ = maxSourceExtent;
+ /**
+ * @type {number}
+ * @private
+ */
+
+ this.errorThresholdSquared_ = errorThreshold * errorThreshold;
+ /**
+ * @type {Array<Triangle>}
+ * @private
+ */
+
+ this.triangles_ = [];
+ /**
+ * Indicates that the triangulation crosses edge of the source projection.
+ * @type {boolean}
+ * @private
+ */
+
+ this.wrapsXInSource_ = false;
+ /**
+ * @type {boolean}
+ * @private
+ */
+
+ this.canWrapXInSource_ = this.sourceProj_.canWrapX() && !!maxSourceExtent && !!this.sourceProj_.getExtent() && (0, _extent.getWidth)(maxSourceExtent) == (0, _extent.getWidth)(this.sourceProj_.getExtent());
+ /**
+ * @type {?number}
+ * @private
+ */
+
+ this.sourceWorldWidth_ = this.sourceProj_.getExtent() ? (0, _extent.getWidth)(this.sourceProj_.getExtent()) : null;
+ /**
+ * @type {?number}
+ * @private
+ */
+
+ this.targetWorldWidth_ = this.targetProj_.getExtent() ? (0, _extent.getWidth)(this.targetProj_.getExtent()) : null;
+ var destinationTopLeft = (0, _extent.getTopLeft)(targetExtent);
+ var destinationTopRight = (0, _extent.getTopRight)(targetExtent);
+ var destinationBottomRight = (0, _extent.getBottomRight)(targetExtent);
+ var destinationBottomLeft = (0, _extent.getBottomLeft)(targetExtent);
+ var sourceTopLeft = this.transformInv_(destinationTopLeft);
+ var sourceTopRight = this.transformInv_(destinationTopRight);
+ var sourceBottomRight = this.transformInv_(destinationBottomRight);
+ var sourceBottomLeft = this.transformInv_(destinationBottomLeft);
+ /*
+ * The maxSubdivision controls how many splittings of the target area can
+ * be done. The idea here is to do a linear mapping of the target areas
+ * but the actual overal reprojection (can be) extremely non-linear. The
+ * default value of MAX_SUBDIVISION was chosen based on mapping a 256x256
+ * tile size. However this function is also called to remap canvas rendered
+ * layers which can be much larger. This calculation increases the maxSubdivision
+ * value by the right factor so that each 256x256 pixel area has
+ * MAX_SUBDIVISION divisions.
+ */
+
+ var maxSubdivision = MAX_SUBDIVISION + (opt_destinationResolution ? Math.max(0, Math.ceil((0, _math.log2)((0, _extent.getArea)(targetExtent) / (opt_destinationResolution * opt_destinationResolution * 256 * 256)))) : 0);
+ this.addQuad_(destinationTopLeft, destinationTopRight, destinationBottomRight, destinationBottomLeft, sourceTopLeft, sourceTopRight, sourceBottomRight, sourceBottomLeft, maxSubdivision);
+
+ if (this.wrapsXInSource_) {
+ var leftBound_1 = Infinity;
+ this.triangles_.forEach(function (triangle, i, arr) {
+ leftBound_1 = Math.min(leftBound_1, triangle.source[0][0], triangle.source[1][0], triangle.source[2][0]);
+ }); // Shift triangles to be as close to `leftBound` as possible
+ // (if the distance is more than `worldWidth / 2` it can be closer.
+
+ this.triangles_.forEach(function (triangle) {
+ if (Math.max(triangle.source[0][0], triangle.source[1][0], triangle.source[2][0]) - leftBound_1 > this.sourceWorldWidth_ / 2) {
+ var newTriangle = [[triangle.source[0][0], triangle.source[0][1]], [triangle.source[1][0], triangle.source[1][1]], [triangle.source[2][0], triangle.source[2][1]]];
+
+ if (newTriangle[0][0] - leftBound_1 > this.sourceWorldWidth_ / 2) {
+ newTriangle[0][0] -= this.sourceWorldWidth_;
+ }
+
+ if (newTriangle[1][0] - leftBound_1 > this.sourceWorldWidth_ / 2) {
+ newTriangle[1][0] -= this.sourceWorldWidth_;
+ }
+
+ if (newTriangle[2][0] - leftBound_1 > this.sourceWorldWidth_ / 2) {
+ newTriangle[2][0] -= this.sourceWorldWidth_;
+ } // Rarely (if the extent contains both the dateline and prime meridian)
+ // the shift can in turn break some triangles.
+ // Detect this here and don't shift in such cases.
+
+
+ var minX = Math.min(newTriangle[0][0], newTriangle[1][0], newTriangle[2][0]);
+ var maxX = Math.max(newTriangle[0][0], newTriangle[1][0], newTriangle[2][0]);
+
+ if (maxX - minX < this.sourceWorldWidth_ / 2) {
+ triangle.source = newTriangle;
+ }
+ }
+ }.bind(this));
+ }
+
+ transformInvCache = {};
+ }
+ /**
+ * Adds triangle to the triangulation.
+ * @param {import("../coordinate.js").Coordinate} a The target a coordinate.
+ * @param {import("../coordinate.js").Coordinate} b The target b coordinate.
+ * @param {import("../coordinate.js").Coordinate} c The target c coordinate.
+ * @param {import("../coordinate.js").Coordinate} aSrc The source a coordinate.
+ * @param {import("../coordinate.js").Coordinate} bSrc The source b coordinate.
+ * @param {import("../coordinate.js").Coordinate} cSrc The source c coordinate.
+ * @private
+ */
+
+
+ Triangulation.prototype.addTriangle_ = function (a, b, c, aSrc, bSrc, cSrc) {
+ this.triangles_.push({
+ source: [aSrc, bSrc, cSrc],
+ target: [a, b, c]
+ });
+ };
+ /**
+ * Adds quad (points in clock-wise order) to the triangulation
+ * (and reprojects the vertices) if valid.
+ * Performs quad subdivision if needed to increase precision.
+ *
+ * @param {import("../coordinate.js").Coordinate} a The target a coordinate.
+ * @param {import("../coordinate.js").Coordinate} b The target b coordinate.
+ * @param {import("../coordinate.js").Coordinate} c The target c coordinate.
+ * @param {import("../coordinate.js").Coordinate} d The target d coordinate.
+ * @param {import("../coordinate.js").Coordinate} aSrc The source a coordinate.
+ * @param {import("../coordinate.js").Coordinate} bSrc The source b coordinate.
+ * @param {import("../coordinate.js").Coordinate} cSrc The source c coordinate.
+ * @param {import("../coordinate.js").Coordinate} dSrc The source d coordinate.
+ * @param {number} maxSubdivision Maximal allowed subdivision of the quad.
+ * @private
+ */
+
+
+ Triangulation.prototype.addQuad_ = function (a, b, c, d, aSrc, bSrc, cSrc, dSrc, maxSubdivision) {
+ var sourceQuadExtent = (0, _extent.boundingExtent)([aSrc, bSrc, cSrc, dSrc]);
+ var sourceCoverageX = this.sourceWorldWidth_ ? (0, _extent.getWidth)(sourceQuadExtent) / this.sourceWorldWidth_ : null;
+ var sourceWorldWidth =
+ /** @type {number} */
+ this.sourceWorldWidth_; // when the quad is wrapped in the source projection
+ // it covers most of the projection extent, but not fully
+
+ var wrapsX = this.sourceProj_.canWrapX() && sourceCoverageX > 0.5 && sourceCoverageX < 1;
+ var needsSubdivision = false;
+
+ if (maxSubdivision > 0) {
+ if (this.targetProj_.isGlobal() && this.targetWorldWidth_) {
+ var targetQuadExtent = (0, _extent.boundingExtent)([a, b, c, d]);
+ var targetCoverageX = (0, _extent.getWidth)(targetQuadExtent) / this.targetWorldWidth_;
+ needsSubdivision = targetCoverageX > MAX_TRIANGLE_WIDTH || needsSubdivision;
+ }
+
+ if (!wrapsX && this.sourceProj_.isGlobal() && sourceCoverageX) {
+ needsSubdivision = sourceCoverageX > MAX_TRIANGLE_WIDTH || needsSubdivision;
+ }
+ }
+
+ if (!needsSubdivision && this.maxSourceExtent_) {
+ if (isFinite(sourceQuadExtent[0]) && isFinite(sourceQuadExtent[1]) && isFinite(sourceQuadExtent[2]) && isFinite(sourceQuadExtent[3])) {
+ if (!(0, _extent.intersects)(sourceQuadExtent, this.maxSourceExtent_)) {
+ // whole quad outside source projection extent -> ignore
+ return;
+ }
+ }
+ }
+
+ var isNotFinite = 0;
+
+ if (!needsSubdivision) {
+ if (!isFinite(aSrc[0]) || !isFinite(aSrc[1]) || !isFinite(bSrc[0]) || !isFinite(bSrc[1]) || !isFinite(cSrc[0]) || !isFinite(cSrc[1]) || !isFinite(dSrc[0]) || !isFinite(dSrc[1])) {
+ if (maxSubdivision > 0) {
+ needsSubdivision = true;
+ } else {
+ // It might be the case that only 1 of the points is infinite. In this case
+ // we can draw a single triangle with the other three points
+ isNotFinite = (!isFinite(aSrc[0]) || !isFinite(aSrc[1]) ? 8 : 0) + (!isFinite(bSrc[0]) || !isFinite(bSrc[1]) ? 4 : 0) + (!isFinite(cSrc[0]) || !isFinite(cSrc[1]) ? 2 : 0) + (!isFinite(dSrc[0]) || !isFinite(dSrc[1]) ? 1 : 0);
+
+ if (isNotFinite != 1 && isNotFinite != 2 && isNotFinite != 4 && isNotFinite != 8) {
+ return;
+ }
+ }
+ }
+ }
+
+ if (maxSubdivision > 0) {
+ if (!needsSubdivision) {
+ var center = [(a[0] + c[0]) / 2, (a[1] + c[1]) / 2];
+ var centerSrc = this.transformInv_(center);
+ var dx = void 0;
+
+ if (wrapsX) {
+ var centerSrcEstimX = ((0, _math.modulo)(aSrc[0], sourceWorldWidth) + (0, _math.modulo)(cSrc[0], sourceWorldWidth)) / 2;
+ dx = centerSrcEstimX - (0, _math.modulo)(centerSrc[0], sourceWorldWidth);
+ } else {
+ dx = (aSrc[0] + cSrc[0]) / 2 - centerSrc[0];
+ }
+
+ var dy = (aSrc[1] + cSrc[1]) / 2 - centerSrc[1];
+ var centerSrcErrorSquared = dx * dx + dy * dy;
+ needsSubdivision = centerSrcErrorSquared > this.errorThresholdSquared_;
+ }
+
+ if (needsSubdivision) {
+ if (Math.abs(a[0] - c[0]) <= Math.abs(a[1] - c[1])) {
+ // split horizontally (top & bottom)
+ var bc = [(b[0] + c[0]) / 2, (b[1] + c[1]) / 2];
+ var bcSrc = this.transformInv_(bc);
+ var da = [(d[0] + a[0]) / 2, (d[1] + a[1]) / 2];
+ var daSrc = this.transformInv_(da);
+ this.addQuad_(a, b, bc, da, aSrc, bSrc, bcSrc, daSrc, maxSubdivision - 1);
+ this.addQuad_(da, bc, c, d, daSrc, bcSrc, cSrc, dSrc, maxSubdivision - 1);
+ } else {
+ // split vertically (left & right)
+ var ab = [(a[0] + b[0]) / 2, (a[1] + b[1]) / 2];
+ var abSrc = this.transformInv_(ab);
+ var cd = [(c[0] + d[0]) / 2, (c[1] + d[1]) / 2];
+ var cdSrc = this.transformInv_(cd);
+ this.addQuad_(a, ab, cd, d, aSrc, abSrc, cdSrc, dSrc, maxSubdivision - 1);
+ this.addQuad_(ab, b, c, cd, abSrc, bSrc, cSrc, cdSrc, maxSubdivision - 1);
+ }
+
+ return;
+ }
+ }
+
+ if (wrapsX) {
+ if (!this.canWrapXInSource_) {
+ return;
+ }
+
+ this.wrapsXInSource_ = true;
+ } // Exactly zero or one of *Src is not finite
+ // The triangles must have the diagonal line as the first side
+ // This is to allow easy code in reproj.s to make it straight for broken
+ // browsers that can't handle diagonal clipping
+
+
+ if ((isNotFinite & 0xb) == 0) {
+ this.addTriangle_(a, c, d, aSrc, cSrc, dSrc);
+ }
+
+ if ((isNotFinite & 0xe) == 0) {
+ this.addTriangle_(a, c, b, aSrc, cSrc, bSrc);
+ }
+
+ if (isNotFinite) {
+ // Try the other two triangles
+ if ((isNotFinite & 0xd) == 0) {
+ this.addTriangle_(b, d, a, bSrc, dSrc, aSrc);
+ }
+
+ if ((isNotFinite & 0x7) == 0) {
+ this.addTriangle_(b, d, c, bSrc, dSrc, cSrc);
+ }
+ }
+ };
+ /**
+ * Calculates extent of the 'source' coordinates from all the triangles.
+ *
+ * @return {import("../extent.js").Extent} Calculated extent.
+ */
+
+
+ Triangulation.prototype.calculateSourceExtent = function () {
+ var extent = (0, _extent.createEmpty)();
+ this.triangles_.forEach(function (triangle, i, arr) {
+ var src = triangle.source;
+ (0, _extent.extendCoordinate)(extent, src[0]);
+ (0, _extent.extendCoordinate)(extent, src[1]);
+ (0, _extent.extendCoordinate)(extent, src[2]);
+ });
+ return extent;
+ };
+ /**
+ * @return {Array<Triangle>} Array of the calculated triangles.
+ */
+
+
+ Triangulation.prototype.getTriangles = function () {
+ return this.triangles_;
+ };
+
+ return Triangulation;
+}();
+
+var _default = Triangulation;
+exports.default = _default;
+},{"../extent.js":"../../../node_modules/ol/extent.js","../proj.js":"../../../node_modules/ol/proj.js","../math.js":"../../../node_modules/ol/math.js"}],"../../../node_modules/ol/source/common.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.IMAGE_SMOOTHING_DISABLED = exports.DEFAULT_WMS_VERSION = void 0;
+
+/**
+ * @module ol/source/common
+ */
+
+/**
+ * Default WMS version.
+ * @type {string}
+ */
+var DEFAULT_WMS_VERSION = '1.3.0';
+/**
+ * Context options to disable image smoothing.
+ * @type {Object}
+ */
+
+exports.DEFAULT_WMS_VERSION = DEFAULT_WMS_VERSION;
+var IMAGE_SMOOTHING_DISABLED = {
+ imageSmoothingEnabled: false,
+ msImageSmoothingEnabled: false
+};
+exports.IMAGE_SMOOTHING_DISABLED = IMAGE_SMOOTHING_DISABLED;
+},{}],"../../../node_modules/ol/reproj.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.calculateSourceResolution = calculateSourceResolution;
+exports.calculateSourceExtentResolution = calculateSourceExtentResolution;
+exports.render = render;
+
+var _common = require("./source/common.js");
+
+var _obj = require("./obj.js");
+
+var _extent = require("./extent.js");
+
+var _dom = require("./dom.js");
+
+var _proj = require("./proj.js");
+
+var _math = require("./math.js");
+
+/**
+ * @module ol/reproj
+ */
+var brokenDiagonalRendering_;
+/**
+ * This draws a small triangle into a canvas by setting the triangle as the clip region
+ * and then drawing a (too large) rectangle
+ *
+ * @param {CanvasRenderingContext2D} ctx The context in which to draw the triangle
+ * @param {number} u1 The x-coordinate of the second point. The first point is 0,0.
+ * @param {number} v1 The y-coordinate of the second point.
+ * @param {number} u2 The x-coordinate of the third point.
+ * @param {number} v2 The y-coordinate of the third point.
+ */
+
+function drawTestTriangle(ctx, u1, v1, u2, v2) {
+ ctx.beginPath();
+ ctx.moveTo(0, 0);
+ ctx.lineTo(u1, v1);
+ ctx.lineTo(u2, v2);
+ ctx.closePath();
+ ctx.save();
+ ctx.clip();
+ ctx.fillRect(0, 0, Math.max(u1, u2) + 1, Math.max(v1, v2));
+ ctx.restore();
+}
+/**
+ * Given the data from getImageData, see if the right values appear at the provided offset.
+ * Returns true if either the color or transparency is off
+ *
+ * @param {Uint8ClampedArray} data The data returned from getImageData
+ * @param {number} offset The pixel offset from the start of data.
+ * @return {boolean} true if the diagonal rendering is broken
+ */
+
+
+function verifyBrokenDiagonalRendering(data, offset) {
+ // the values ought to be close to the rgba(210, 0, 0, 0.75)
+ return Math.abs(data[offset * 4] - 210) > 2 || Math.abs(data[offset * 4 + 3] - 0.75 * 255) > 2;
+}
+/**
+ * Determines if the current browser configuration can render triangular clip regions correctly.
+ * This value is cached so the function is only expensive the first time called.
+ * Firefox on Windows (as of now) does not if HWA is enabled. See https://bugzilla.mozilla.org/show_bug.cgi?id=1606976
+ * IE also doesn't. Chrome works, and everything seems to work on OSX and Android. This function caches the
+ * result. I suppose that it is conceivably possible that a browser might flip modes while the app is
+ * running, but lets hope not.
+ *
+ * @return {boolean} true if the Diagonal Rendering is broken.
+ */
+
+
+function isBrokenDiagonalRendering() {
+ if (brokenDiagonalRendering_ === undefined) {
+ var ctx = document.createElement('canvas').getContext('2d');
+ ctx.globalCompositeOperation = 'lighter';
+ ctx.fillStyle = 'rgba(210, 0, 0, 0.75)';
+ drawTestTriangle(ctx, 4, 5, 4, 0);
+ drawTestTriangle(ctx, 4, 5, 0, 5);
+ var data = ctx.getImageData(0, 0, 3, 3).data;
+ brokenDiagonalRendering_ = verifyBrokenDiagonalRendering(data, 0) || verifyBrokenDiagonalRendering(data, 4) || verifyBrokenDiagonalRendering(data, 8);
+ }
+
+ return brokenDiagonalRendering_;
+}
+/**
+ * Calculates ideal resolution to use from the source in order to achieve
+ * pixel mapping as close as possible to 1:1 during reprojection.
+ * The resolution is calculated regardless of what resolutions
+ * are actually available in the dataset (TileGrid, Image, ...).
+ *
+ * @param {import("./proj/Projection.js").default} sourceProj Source projection.
+ * @param {import("./proj/Projection.js").default} targetProj Target projection.
+ * @param {import("./coordinate.js").Coordinate} targetCenter Target center.
+ * @param {number} targetResolution Target resolution.
+ * @return {number} The best resolution to use. Can be +-Infinity, NaN or 0.
+ */
+
+
+function calculateSourceResolution(sourceProj, targetProj, targetCenter, targetResolution) {
+ var sourceCenter = (0, _proj.transform)(targetCenter, targetProj, sourceProj); // calculate the ideal resolution of the source data
+
+ var sourceResolution = (0, _proj.getPointResolution)(targetProj, targetResolution, targetCenter);
+ var targetMetersPerUnit = targetProj.getMetersPerUnit();
+
+ if (targetMetersPerUnit !== undefined) {
+ sourceResolution *= targetMetersPerUnit;
+ }
+
+ var sourceMetersPerUnit = sourceProj.getMetersPerUnit();
+
+ if (sourceMetersPerUnit !== undefined) {
+ sourceResolution /= sourceMetersPerUnit;
+ } // Based on the projection properties, the point resolution at the specified
+ // coordinates may be slightly different. We need to reverse-compensate this
+ // in order to achieve optimal results.
+
+
+ var sourceExtent = sourceProj.getExtent();
+
+ if (!sourceExtent || (0, _extent.containsCoordinate)(sourceExtent, sourceCenter)) {
+ var compensationFactor = (0, _proj.getPointResolution)(sourceProj, sourceResolution, sourceCenter) / sourceResolution;
+
+ if (isFinite(compensationFactor) && compensationFactor > 0) {
+ sourceResolution /= compensationFactor;
+ }
+ }
+
+ return sourceResolution;
+}
+/**
+ * Calculates ideal resolution to use from the source in order to achieve
+ * pixel mapping as close as possible to 1:1 during reprojection.
+ * The resolution is calculated regardless of what resolutions
+ * are actually available in the dataset (TileGrid, Image, ...).
+ *
+ * @param {import("./proj/Projection.js").default} sourceProj Source projection.
+ * @param {import("./proj/Projection.js").default} targetProj Target projection.
+ * @param {import("./extent.js").Extent} targetExtent Target extent
+ * @param {number} targetResolution Target resolution.
+ * @return {number} The best resolution to use. Can be +-Infinity, NaN or 0.
+ */
+
+
+function calculateSourceExtentResolution(sourceProj, targetProj, targetExtent, targetResolution) {
+ var targetCenter = (0, _extent.getCenter)(targetExtent);
+ var sourceResolution = calculateSourceResolution(sourceProj, targetProj, targetCenter, targetResolution);
+
+ if (!isFinite(sourceResolution) || sourceResolution <= 0) {
+ (0, _extent.forEachCorner)(targetExtent, function (corner) {
+ sourceResolution = calculateSourceResolution(sourceProj, targetProj, corner, targetResolution);
+ return isFinite(sourceResolution) && sourceResolution > 0;
+ });
+ }
+
+ return sourceResolution;
+}
+/**
+ * Renders the source data into new canvas based on the triangulation.
+ *
+ * @param {number} width Width of the canvas.
+ * @param {number} height Height of the canvas.
+ * @param {number} pixelRatio Pixel ratio.
+ * @param {number} sourceResolution Source resolution.
+ * @param {import("./extent.js").Extent} sourceExtent Extent of the data source.
+ * @param {number} targetResolution Target resolution.
+ * @param {import("./extent.js").Extent} targetExtent Target extent.
+ * @param {import("./reproj/Triangulation.js").default} triangulation
+ * Calculated triangulation.
+ * @param {Array<{extent: import("./extent.js").Extent,
+ * image: (HTMLCanvasElement|HTMLImageElement|HTMLVideoElement)}>} sources
+ * Array of sources.
+ * @param {number} gutter Gutter of the sources.
+ * @param {boolean=} opt_renderEdges Render reprojection edges.
+ * @param {object=} opt_contextOptions Properties to set on the canvas context.
+ * @return {HTMLCanvasElement} Canvas with reprojected data.
+ */
+
+
+function render(width, height, pixelRatio, sourceResolution, sourceExtent, targetResolution, targetExtent, triangulation, sources, gutter, opt_renderEdges, opt_contextOptions) {
+ var context = (0, _dom.createCanvasContext2D)(Math.round(pixelRatio * width), Math.round(pixelRatio * height));
+ (0, _obj.assign)(context, opt_contextOptions);
+
+ if (sources.length === 0) {
+ return context.canvas;
+ }
+
+ context.scale(pixelRatio, pixelRatio);
+
+ function pixelRound(value) {
+ return Math.round(value * pixelRatio) / pixelRatio;
+ }
+
+ context.globalCompositeOperation = 'lighter';
+ var sourceDataExtent = (0, _extent.createEmpty)();
+ sources.forEach(function (src, i, arr) {
+ (0, _extent.extend)(sourceDataExtent, src.extent);
+ });
+ var canvasWidthInUnits = (0, _extent.getWidth)(sourceDataExtent);
+ var canvasHeightInUnits = (0, _extent.getHeight)(sourceDataExtent);
+ var stitchContext = (0, _dom.createCanvasContext2D)(Math.round(pixelRatio * canvasWidthInUnits / sourceResolution), Math.round(pixelRatio * canvasHeightInUnits / sourceResolution));
+ (0, _obj.assign)(stitchContext, opt_contextOptions);
+ var stitchScale = pixelRatio / sourceResolution;
+ sources.forEach(function (src, i, arr) {
+ var xPos = src.extent[0] - sourceDataExtent[0];
+ var yPos = -(src.extent[3] - sourceDataExtent[3]);
+ var srcWidth = (0, _extent.getWidth)(src.extent);
+ var srcHeight = (0, _extent.getHeight)(src.extent); // This test should never fail -- but it does. Need to find a fix the upstream condition
+
+ if (src.image.width > 0 && src.image.height > 0) {
+ stitchContext.drawImage(src.image, gutter, gutter, src.image.width - 2 * gutter, src.image.height - 2 * gutter, xPos * stitchScale, yPos * stitchScale, srcWidth * stitchScale, srcHeight * stitchScale);
+ }
+ });
+ var targetTopLeft = (0, _extent.getTopLeft)(targetExtent);
+ triangulation.getTriangles().forEach(function (triangle, i, arr) {
+ /* Calculate affine transform (src -> dst)
+ * Resulting matrix can be used to transform coordinate
+ * from `sourceProjection` to destination pixels.
+ *
+ * To optimize number of context calls and increase numerical stability,
+ * we also do the following operations:
+ * trans(-topLeftExtentCorner), scale(1 / targetResolution), scale(1, -1)
+ * here before solving the linear system so [ui, vi] are pixel coordinates.
+ *
+ * Src points: xi, yi
+ * Dst points: ui, vi
+ * Affine coefficients: aij
+ *
+ * | x0 y0 1 0 0 0 | |a00| |u0|
+ * | x1 y1 1 0 0 0 | |a01| |u1|
+ * | x2 y2 1 0 0 0 | x |a02| = |u2|
+ * | 0 0 0 x0 y0 1 | |a10| |v0|
+ * | 0 0 0 x1 y1 1 | |a11| |v1|
+ * | 0 0 0 x2 y2 1 | |a12| |v2|
+ */
+ var source = triangle.source;
+ var target = triangle.target;
+ var x0 = source[0][0],
+ y0 = source[0][1];
+ var x1 = source[1][0],
+ y1 = source[1][1];
+ var x2 = source[2][0],
+ y2 = source[2][1]; // Make sure that everything is on pixel boundaries
+
+ var u0 = pixelRound((target[0][0] - targetTopLeft[0]) / targetResolution);
+ var v0 = pixelRound(-(target[0][1] - targetTopLeft[1]) / targetResolution);
+ var u1 = pixelRound((target[1][0] - targetTopLeft[0]) / targetResolution);
+ var v1 = pixelRound(-(target[1][1] - targetTopLeft[1]) / targetResolution);
+ var u2 = pixelRound((target[2][0] - targetTopLeft[0]) / targetResolution);
+ var v2 = pixelRound(-(target[2][1] - targetTopLeft[1]) / targetResolution); // Shift all the source points to improve numerical stability
+ // of all the subsequent calculations. The [x0, y0] is used here.
+ // This is also used to simplify the linear system.
+
+ var sourceNumericalShiftX = x0;
+ var sourceNumericalShiftY = y0;
+ x0 = 0;
+ y0 = 0;
+ x1 -= sourceNumericalShiftX;
+ y1 -= sourceNumericalShiftY;
+ x2 -= sourceNumericalShiftX;
+ y2 -= sourceNumericalShiftY;
+ var augmentedMatrix = [[x1, y1, 0, 0, u1 - u0], [x2, y2, 0, 0, u2 - u0], [0, 0, x1, y1, v1 - v0], [0, 0, x2, y2, v2 - v0]];
+ var affineCoefs = (0, _math.solveLinearSystem)(augmentedMatrix);
+
+ if (!affineCoefs) {
+ return;
+ }
+
+ context.save();
+ context.beginPath();
+
+ if (isBrokenDiagonalRendering() || opt_contextOptions === _common.IMAGE_SMOOTHING_DISABLED) {
+ // Make sure that all lines are horizontal or vertical
+ context.moveTo(u1, v1); // This is the diagonal line. Do it in 4 steps
+
+ var steps = 4;
+ var ud = u0 - u1;
+ var vd = v0 - v1;
+
+ for (var step = 0; step < steps; step++) {
+ // Go horizontally
+ context.lineTo(u1 + pixelRound((step + 1) * ud / steps), v1 + pixelRound(step * vd / (steps - 1))); // Go vertically
+
+ if (step != steps - 1) {
+ context.lineTo(u1 + pixelRound((step + 1) * ud / steps), v1 + pixelRound((step + 1) * vd / (steps - 1)));
+ }
+ } // We are almost at u0r, v0r
+
+
+ context.lineTo(u2, v2);
+ } else {
+ context.moveTo(u1, v1);
+ context.lineTo(u0, v0);
+ context.lineTo(u2, v2);
+ }
+
+ context.clip();
+ context.transform(affineCoefs[0], affineCoefs[2], affineCoefs[1], affineCoefs[3], u0, v0);
+ context.translate(sourceDataExtent[0] - sourceNumericalShiftX, sourceDataExtent[3] - sourceNumericalShiftY);
+ context.scale(sourceResolution / pixelRatio, -sourceResolution / pixelRatio);
+ context.drawImage(stitchContext.canvas, 0, 0);
+ context.restore();
+ });
+
+ if (opt_renderEdges) {
+ context.save();
+ context.globalCompositeOperation = 'source-over';
+ context.strokeStyle = 'black';
+ context.lineWidth = 1;
+ triangulation.getTriangles().forEach(function (triangle, i, arr) {
+ var target = triangle.target;
+ var u0 = (target[0][0] - targetTopLeft[0]) / targetResolution;
+ var v0 = -(target[0][1] - targetTopLeft[1]) / targetResolution;
+ var u1 = (target[1][0] - targetTopLeft[0]) / targetResolution;
+ var v1 = -(target[1][1] - targetTopLeft[1]) / targetResolution;
+ var u2 = (target[2][0] - targetTopLeft[0]) / targetResolution;
+ var v2 = -(target[2][1] - targetTopLeft[1]) / targetResolution;
+ context.beginPath();
+ context.moveTo(u1, v1);
+ context.lineTo(u0, v0);
+ context.lineTo(u2, v2);
+ context.closePath();
+ context.stroke();
+ });
+ context.restore();
+ }
+
+ return context.canvas;
+}
+},{"./source/common.js":"../../../node_modules/ol/source/common.js","./obj.js":"../../../node_modules/ol/obj.js","./extent.js":"../../../node_modules/ol/extent.js","./dom.js":"../../../node_modules/ol/dom.js","./proj.js":"../../../node_modules/ol/proj.js","./math.js":"../../../node_modules/ol/math.js"}],"../../../node_modules/ol/reproj/Tile.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _common = require("./common.js");
+
+var _EventType = _interopRequireDefault(require("../events/EventType.js"));
+
+var _Tile = _interopRequireDefault(require("../Tile.js"));
+
+var _TileState = _interopRequireDefault(require("../TileState.js"));
+
+var _Triangulation = _interopRequireDefault(require("./Triangulation.js"));
+
+var _reproj = require("../reproj.js");
+
+var _math = require("../math.js");
+
+var _extent = require("../extent.js");
+
+var _events = require("../events.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/reproj/Tile
+ */
+
+
+/**
+ * @typedef {function(number, number, number, number) : import("../Tile.js").default} FunctionType
+ */
+
+/**
+ * @classdesc
+ * Class encapsulating single reprojected tile.
+ * See {@link module:ol/source/TileImage~TileImage}.
+ *
+ */
+var ReprojTile =
+/** @class */
+function (_super) {
+ __extends(ReprojTile, _super);
+ /**
+ * @param {import("../proj/Projection.js").default} sourceProj Source projection.
+ * @param {import("../tilegrid/TileGrid.js").default} sourceTileGrid Source tile grid.
+ * @param {import("../proj/Projection.js").default} targetProj Target projection.
+ * @param {import("../tilegrid/TileGrid.js").default} targetTileGrid Target tile grid.
+ * @param {import("../tilecoord.js").TileCoord} tileCoord Coordinate of the tile.
+ * @param {import("../tilecoord.js").TileCoord} wrappedTileCoord Coordinate of the tile wrapped in X.
+ * @param {number} pixelRatio Pixel ratio.
+ * @param {number} gutter Gutter of the source tiles.
+ * @param {FunctionType} getTileFunction
+ * Function returning source tiles (z, x, y, pixelRatio).
+ * @param {number=} opt_errorThreshold Acceptable reprojection error (in px).
+ * @param {boolean=} opt_renderEdges Render reprojection edges.
+ * @param {object=} opt_contextOptions Properties to set on the canvas context.
+ */
+
+
+ function ReprojTile(sourceProj, sourceTileGrid, targetProj, targetTileGrid, tileCoord, wrappedTileCoord, pixelRatio, gutter, getTileFunction, opt_errorThreshold, opt_renderEdges, opt_contextOptions) {
+ var _this = _super.call(this, tileCoord, _TileState.default.IDLE) || this;
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+
+ _this.renderEdges_ = opt_renderEdges !== undefined ? opt_renderEdges : false;
+ /**
+ * @private
+ * @type {object}
+ */
+
+ _this.contextOptions_ = opt_contextOptions;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.pixelRatio_ = pixelRatio;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.gutter_ = gutter;
+ /**
+ * @private
+ * @type {HTMLCanvasElement}
+ */
+
+ _this.canvas_ = null;
+ /**
+ * @private
+ * @type {import("../tilegrid/TileGrid.js").default}
+ */
+
+ _this.sourceTileGrid_ = sourceTileGrid;
+ /**
+ * @private
+ * @type {import("../tilegrid/TileGrid.js").default}
+ */
+
+ _this.targetTileGrid_ = targetTileGrid;
+ /**
+ * @private
+ * @type {import("../tilecoord.js").TileCoord}
+ */
+
+ _this.wrappedTileCoord_ = wrappedTileCoord ? wrappedTileCoord : tileCoord;
+ /**
+ * @private
+ * @type {!Array<import("../Tile.js").default>}
+ */
+
+ _this.sourceTiles_ = [];
+ /**
+ * @private
+ * @type {?Array<import("../events.js").EventsKey>}
+ */
+
+ _this.sourcesListenerKeys_ = null;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.sourceZ_ = 0;
+ var targetExtent = targetTileGrid.getTileCoordExtent(_this.wrappedTileCoord_);
+
+ var maxTargetExtent = _this.targetTileGrid_.getExtent();
+
+ var maxSourceExtent = _this.sourceTileGrid_.getExtent();
+
+ var limitedTargetExtent = maxTargetExtent ? (0, _extent.getIntersection)(targetExtent, maxTargetExtent) : targetExtent;
+
+ if ((0, _extent.getArea)(limitedTargetExtent) === 0) {
+ // Tile is completely outside range -> EMPTY
+ // TODO: is it actually correct that the source even creates the tile ?
+ _this.state = _TileState.default.EMPTY;
+ return _this;
+ }
+
+ var sourceProjExtent = sourceProj.getExtent();
+
+ if (sourceProjExtent) {
+ if (!maxSourceExtent) {
+ maxSourceExtent = sourceProjExtent;
+ } else {
+ maxSourceExtent = (0, _extent.getIntersection)(maxSourceExtent, sourceProjExtent);
+ }
+ }
+
+ var targetResolution = targetTileGrid.getResolution(_this.wrappedTileCoord_[0]);
+ var sourceResolution = (0, _reproj.calculateSourceExtentResolution)(sourceProj, targetProj, limitedTargetExtent, targetResolution);
+
+ if (!isFinite(sourceResolution) || sourceResolution <= 0) {
+ // invalid sourceResolution -> EMPTY
+ // probably edges of the projections when no extent is defined
+ _this.state = _TileState.default.EMPTY;
+ return _this;
+ }
+
+ var errorThresholdInPixels = opt_errorThreshold !== undefined ? opt_errorThreshold : _common.ERROR_THRESHOLD;
+ /**
+ * @private
+ * @type {!import("./Triangulation.js").default}
+ */
+
+ _this.triangulation_ = new _Triangulation.default(sourceProj, targetProj, limitedTargetExtent, maxSourceExtent, sourceResolution * errorThresholdInPixels, targetResolution);
+
+ if (_this.triangulation_.getTriangles().length === 0) {
+ // no valid triangles -> EMPTY
+ _this.state = _TileState.default.EMPTY;
+ return _this;
+ }
+
+ _this.sourceZ_ = sourceTileGrid.getZForResolution(sourceResolution);
+
+ var sourceExtent = _this.triangulation_.calculateSourceExtent();
+
+ if (maxSourceExtent) {
+ if (sourceProj.canWrapX()) {
+ sourceExtent[1] = (0, _math.clamp)(sourceExtent[1], maxSourceExtent[1], maxSourceExtent[3]);
+ sourceExtent[3] = (0, _math.clamp)(sourceExtent[3], maxSourceExtent[1], maxSourceExtent[3]);
+ } else {
+ sourceExtent = (0, _extent.getIntersection)(sourceExtent, maxSourceExtent);
+ }
+ }
+
+ if (!(0, _extent.getArea)(sourceExtent)) {
+ _this.state = _TileState.default.EMPTY;
+ } else {
+ var sourceRange = sourceTileGrid.getTileRangeForExtentAndZ(sourceExtent, _this.sourceZ_);
+
+ for (var srcX = sourceRange.minX; srcX <= sourceRange.maxX; srcX++) {
+ for (var srcY = sourceRange.minY; srcY <= sourceRange.maxY; srcY++) {
+ var tile = getTileFunction(_this.sourceZ_, srcX, srcY, pixelRatio);
+
+ if (tile) {
+ _this.sourceTiles_.push(tile);
+ }
+ }
+ }
+
+ if (_this.sourceTiles_.length === 0) {
+ _this.state = _TileState.default.EMPTY;
+ }
+ }
+
+ return _this;
+ }
+ /**
+ * Get the HTML Canvas element for this tile.
+ * @return {HTMLCanvasElement} Canvas.
+ */
+
+
+ ReprojTile.prototype.getImage = function () {
+ return this.canvas_;
+ };
+ /**
+ * @private
+ */
+
+
+ ReprojTile.prototype.reproject_ = function () {
+ var sources = [];
+ this.sourceTiles_.forEach(function (tile, i, arr) {
+ if (tile && tile.getState() == _TileState.default.LOADED) {
+ sources.push({
+ extent: this.sourceTileGrid_.getTileCoordExtent(tile.tileCoord),
+ image: tile.getImage()
+ });
+ }
+ }.bind(this));
+ this.sourceTiles_.length = 0;
+
+ if (sources.length === 0) {
+ this.state = _TileState.default.ERROR;
+ } else {
+ var z = this.wrappedTileCoord_[0];
+ var size = this.targetTileGrid_.getTileSize(z);
+ var width = typeof size === 'number' ? size : size[0];
+ var height = typeof size === 'number' ? size : size[1];
+ var targetResolution = this.targetTileGrid_.getResolution(z);
+ var sourceResolution = this.sourceTileGrid_.getResolution(this.sourceZ_);
+ var targetExtent = this.targetTileGrid_.getTileCoordExtent(this.wrappedTileCoord_);
+ this.canvas_ = (0, _reproj.render)(width, height, this.pixelRatio_, sourceResolution, this.sourceTileGrid_.getExtent(), targetResolution, targetExtent, this.triangulation_, sources, this.gutter_, this.renderEdges_, this.contextOptions_);
+ this.state = _TileState.default.LOADED;
+ }
+
+ this.changed();
+ };
+ /**
+ * Load not yet loaded URI.
+ */
+
+
+ ReprojTile.prototype.load = function () {
+ if (this.state == _TileState.default.IDLE) {
+ this.state = _TileState.default.LOADING;
+ this.changed();
+ var leftToLoad_1 = 0;
+ this.sourcesListenerKeys_ = [];
+ this.sourceTiles_.forEach(function (tile, i, arr) {
+ var state = tile.getState();
+
+ if (state == _TileState.default.IDLE || state == _TileState.default.LOADING) {
+ leftToLoad_1++;
+ var sourceListenKey_1 = (0, _events.listen)(tile, _EventType.default.CHANGE, function (e) {
+ var state = tile.getState();
+
+ if (state == _TileState.default.LOADED || state == _TileState.default.ERROR || state == _TileState.default.EMPTY) {
+ (0, _events.unlistenByKey)(sourceListenKey_1);
+ leftToLoad_1--;
+
+ if (leftToLoad_1 === 0) {
+ this.unlistenSources_();
+ this.reproject_();
+ }
+ }
+ }, this);
+ this.sourcesListenerKeys_.push(sourceListenKey_1);
+ }
+ }.bind(this));
+ this.sourceTiles_.forEach(function (tile, i, arr) {
+ var state = tile.getState();
+
+ if (state == _TileState.default.IDLE) {
+ tile.load();
+ }
+ });
+
+ if (leftToLoad_1 === 0) {
+ setTimeout(this.reproject_.bind(this), 0);
+ }
+ }
+ };
+ /**
+ * @private
+ */
+
+
+ ReprojTile.prototype.unlistenSources_ = function () {
+ this.sourcesListenerKeys_.forEach(_events.unlistenByKey);
+ this.sourcesListenerKeys_ = null;
+ };
+
+ return ReprojTile;
+}(_Tile.default);
+
+var _default = ReprojTile;
+exports.default = _default;
+},{"./common.js":"../../../node_modules/ol/reproj/common.js","../events/EventType.js":"../../../node_modules/ol/events/EventType.js","../Tile.js":"../../../node_modules/ol/Tile.js","../TileState.js":"../../../node_modules/ol/TileState.js","./Triangulation.js":"../../../node_modules/ol/reproj/Triangulation.js","../reproj.js":"../../../node_modules/ol/reproj.js","../math.js":"../../../node_modules/ol/math.js","../extent.js":"../../../node_modules/ol/extent.js","../events.js":"../../../node_modules/ol/events.js"}],"../../../node_modules/ol/source/TileEventType.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+/**
+ * @module ol/source/TileEventType
+ */
+
+/**
+ * @enum {string}
+ */
+var _default = {
+ /**
+ * Triggered when a tile starts loading.
+ * @event module:ol/source/Tile.TileSourceEvent#tileloadstart
+ * @api
+ */
+ TILELOADSTART: 'tileloadstart',
+
+ /**
+ * Triggered when a tile finishes loading, either when its data is loaded,
+ * or when loading was aborted because the tile is no longer needed.
+ * @event module:ol/source/Tile.TileSourceEvent#tileloadend
+ * @api
+ */
+ TILELOADEND: 'tileloadend',
+
+ /**
+ * Triggered if tile loading results in an error.
+ * @event module:ol/source/Tile.TileSourceEvent#tileloaderror
+ * @api
+ */
+ TILELOADERROR: 'tileloaderror'
+};
+exports.default = _default;
+},{}],"../../../node_modules/ol/tilegrid/TileGrid.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _TileRange = _interopRequireWildcard(require("../TileRange.js"));
+
+var _common = require("./common.js");
+
+var _asserts = require("../asserts.js");
+
+var _math = require("../math.js");
+
+var _extent = require("../extent.js");
+
+var _tilecoord = require("../tilecoord.js");
+
+var _array = require("../array.js");
+
+var _size = require("../size.js");
+
+function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
+
+/**
+ * @module ol/tilegrid/TileGrid
+ */
+
+/**
+ * @private
+ * @type {import("../tilecoord.js").TileCoord}
+ */
+var tmpTileCoord = [0, 0, 0];
+/**
+ * @typedef {Object} Options
+ * @property {import("../extent.js").Extent} [extent] Extent for the tile grid. No tiles outside this
+ * extent will be requested by {@link module:ol/source/Tile} sources. When no `origin` or
+ * `origins` are configured, the `origin` will be set to the top-left corner of the extent.
+ * @property {number} [minZoom=0] Minimum zoom.
+ * @property {import("../coordinate.js").Coordinate} [origin] The tile grid origin, i.e. where the `x`
+ * and `y` axes meet (`[z, 0, 0]`). Tile coordinates increase left to right and downwards. If not
+ * specified, `extent` or `origins` must be provided.
+ * @property {Array<import("../coordinate.js").Coordinate>} [origins] Tile grid origins, i.e. where
+ * the `x` and `y` axes meet (`[z, 0, 0]`), for each zoom level. If given, the array length
+ * should match the length of the `resolutions` array, i.e. each resolution can have a different
+ * origin. Tile coordinates increase left to right and downwards. If not specified, `extent` or
+ * `origin` must be provided.
+ * @property {!Array<number>} resolutions Resolutions. The array index of each resolution needs
+ * to match the zoom level. This means that even if a `minZoom` is configured, the resolutions
+ * array will have a length of `maxZoom + 1`.
+ * @property {Array<import("../size.js").Size>} [sizes] Number of tile rows and columns
+ * of the grid for each zoom level. If specified the values
+ * define each zoom level's extent together with the `origin` or `origins`.
+ * A grid `extent` can be configured in addition, and will further limit the extent
+ * for which tile requests are made by sources. If the bottom-left corner of
+ * an extent is used as `origin` or `origins`, then the `y` value must be
+ * negative because OpenLayers tile coordinates use the top left as the origin.
+ * @property {number|import("../size.js").Size} [tileSize] Tile size.
+ * Default is `[256, 256]`.
+ * @property {Array<import("../size.js").Size>} [tileSizes] Tile sizes. If given, the array length
+ * should match the length of the `resolutions` array, i.e. each resolution can have a different
+ * tile size.
+ */
+
+/**
+ * @classdesc
+ * Base class for setting the grid pattern for sources accessing tiled-image
+ * servers.
+ * @api
+ */
+
+var TileGrid =
+/** @class */
+function () {
+ /**
+ * @param {Options} options Tile grid options.
+ */
+ function TileGrid(options) {
+ /**
+ * @protected
+ * @type {number}
+ */
+ this.minZoom = options.minZoom !== undefined ? options.minZoom : 0;
+ /**
+ * @private
+ * @type {!Array<number>}
+ */
+
+ this.resolutions_ = options.resolutions;
+ (0, _asserts.assert)((0, _array.isSorted)(this.resolutions_, function (a, b) {
+ return b - a;
+ }, true), 17); // `resolutions` must be sorted in descending order
+ // check if we've got a consistent zoom factor and origin
+
+ var zoomFactor;
+
+ if (!options.origins) {
+ for (var i = 0, ii = this.resolutions_.length - 1; i < ii; ++i) {
+ if (!zoomFactor) {
+ zoomFactor = this.resolutions_[i] / this.resolutions_[i + 1];
+ } else {
+ if (this.resolutions_[i] / this.resolutions_[i + 1] !== zoomFactor) {
+ zoomFactor = undefined;
+ break;
+ }
+ }
+ }
+ }
+ /**
+ * @private
+ * @type {number|undefined}
+ */
+
+
+ this.zoomFactor_ = zoomFactor;
+ /**
+ * @protected
+ * @type {number}
+ */
+
+ this.maxZoom = this.resolutions_.length - 1;
+ /**
+ * @private
+ * @type {import("../coordinate.js").Coordinate}
+ */
+
+ this.origin_ = options.origin !== undefined ? options.origin : null;
+ /**
+ * @private
+ * @type {Array<import("../coordinate.js").Coordinate>}
+ */
+
+ this.origins_ = null;
+
+ if (options.origins !== undefined) {
+ this.origins_ = options.origins;
+ (0, _asserts.assert)(this.origins_.length == this.resolutions_.length, 20); // Number of `origins` and `resolutions` must be equal
+ }
+
+ var extent = options.extent;
+
+ if (extent !== undefined && !this.origin_ && !this.origins_) {
+ this.origin_ = (0, _extent.getTopLeft)(extent);
+ }
+
+ (0, _asserts.assert)(!this.origin_ && this.origins_ || this.origin_ && !this.origins_, 18); // Either `origin` or `origins` must be configured, never both
+
+ /**
+ * @private
+ * @type {Array<number|import("../size.js").Size>}
+ */
+
+ this.tileSizes_ = null;
+
+ if (options.tileSizes !== undefined) {
+ this.tileSizes_ = options.tileSizes;
+ (0, _asserts.assert)(this.tileSizes_.length == this.resolutions_.length, 19); // Number of `tileSizes` and `resolutions` must be equal
+ }
+ /**
+ * @private
+ * @type {number|import("../size.js").Size}
+ */
+
+
+ this.tileSize_ = options.tileSize !== undefined ? options.tileSize : !this.tileSizes_ ? _common.DEFAULT_TILE_SIZE : null;
+ (0, _asserts.assert)(!this.tileSize_ && this.tileSizes_ || this.tileSize_ && !this.tileSizes_, 22); // Either `tileSize` or `tileSizes` must be configured, never both
+
+ /**
+ * @private
+ * @type {import("../extent.js").Extent}
+ */
+
+ this.extent_ = extent !== undefined ? extent : null;
+ /**
+ * @private
+ * @type {Array<import("../TileRange.js").default>}
+ */
+
+ this.fullTileRanges_ = null;
+ /**
+ * @private
+ * @type {import("../size.js").Size}
+ */
+
+ this.tmpSize_ = [0, 0];
+
+ if (options.sizes !== undefined) {
+ this.fullTileRanges_ = options.sizes.map(function (size, z) {
+ var tileRange = new _TileRange.default(Math.min(0, size[0]), Math.max(size[0] - 1, -1), Math.min(0, size[1]), Math.max(size[1] - 1, -1));
+ return tileRange;
+ }, this);
+ } else if (extent) {
+ this.calculateTileRanges_(extent);
+ }
+ }
+ /**
+ * Call a function with each tile coordinate for a given extent and zoom level.
+ *
+ * @param {import("../extent.js").Extent} extent Extent.
+ * @param {number} zoom Integer zoom level.
+ * @param {function(import("../tilecoord.js").TileCoord): void} callback Function called with each tile coordinate.
+ * @api
+ */
+
+
+ TileGrid.prototype.forEachTileCoord = function (extent, zoom, callback) {
+ var tileRange = this.getTileRangeForExtentAndZ(extent, zoom);
+
+ for (var i = tileRange.minX, ii = tileRange.maxX; i <= ii; ++i) {
+ for (var j = tileRange.minY, jj = tileRange.maxY; j <= jj; ++j) {
+ callback([zoom, i, j]);
+ }
+ }
+ };
+ /**
+ * @param {import("../tilecoord.js").TileCoord} tileCoord Tile coordinate.
+ * @param {function(number, import("../TileRange.js").default): boolean} callback Callback.
+ * @param {import("../TileRange.js").default=} opt_tileRange Temporary import("../TileRange.js").default object.
+ * @param {import("../extent.js").Extent=} opt_extent Temporary import("../extent.js").Extent object.
+ * @return {boolean} Callback succeeded.
+ */
+
+
+ TileGrid.prototype.forEachTileCoordParentTileRange = function (tileCoord, callback, opt_tileRange, opt_extent) {
+ var tileRange, x, y;
+ var tileCoordExtent = null;
+ var z = tileCoord[0] - 1;
+
+ if (this.zoomFactor_ === 2) {
+ x = tileCoord[1];
+ y = tileCoord[2];
+ } else {
+ tileCoordExtent = this.getTileCoordExtent(tileCoord, opt_extent);
+ }
+
+ while (z >= this.minZoom) {
+ if (this.zoomFactor_ === 2) {
+ x = Math.floor(x / 2);
+ y = Math.floor(y / 2);
+ tileRange = (0, _TileRange.createOrUpdate)(x, x, y, y, opt_tileRange);
+ } else {
+ tileRange = this.getTileRangeForExtentAndZ(tileCoordExtent, z, opt_tileRange);
+ }
+
+ if (callback(z, tileRange)) {
+ return true;
+ }
+
+ --z;
+ }
+
+ return false;
+ };
+ /**
+ * Get the extent for this tile grid, if it was configured.
+ * @return {import("../extent.js").Extent} Extent.
+ * @api
+ */
+
+
+ TileGrid.prototype.getExtent = function () {
+ return this.extent_;
+ };
+ /**
+ * Get the maximum zoom level for the grid.
+ * @return {number} Max zoom.
+ * @api
+ */
+
+
+ TileGrid.prototype.getMaxZoom = function () {
+ return this.maxZoom;
+ };
+ /**
+ * Get the minimum zoom level for the grid.
+ * @return {number} Min zoom.
+ * @api
+ */
+
+
+ TileGrid.prototype.getMinZoom = function () {
+ return this.minZoom;
+ };
+ /**
+ * Get the origin for the grid at the given zoom level.
+ * @param {number} z Integer zoom level.
+ * @return {import("../coordinate.js").Coordinate} Origin.
+ * @api
+ */
+
+
+ TileGrid.prototype.getOrigin = function (z) {
+ if (this.origin_) {
+ return this.origin_;
+ } else {
+ return this.origins_[z];
+ }
+ };
+ /**
+ * Get the resolution for the given zoom level.
+ * @param {number} z Integer zoom level.
+ * @return {number} Resolution.
+ * @api
+ */
+
+
+ TileGrid.prototype.getResolution = function (z) {
+ return this.resolutions_[z];
+ };
+ /**
+ * Get the list of resolutions for the tile grid.
+ * @return {Array<number>} Resolutions.
+ * @api
+ */
+
+
+ TileGrid.prototype.getResolutions = function () {
+ return this.resolutions_;
+ };
+ /**
+ * @param {import("../tilecoord.js").TileCoord} tileCoord Tile coordinate.
+ * @param {import("../TileRange.js").default=} opt_tileRange Temporary import("../TileRange.js").default object.
+ * @param {import("../extent.js").Extent=} opt_extent Temporary import("../extent.js").Extent object.
+ * @return {import("../TileRange.js").default} Tile range.
+ */
+
+
+ TileGrid.prototype.getTileCoordChildTileRange = function (tileCoord, opt_tileRange, opt_extent) {
+ if (tileCoord[0] < this.maxZoom) {
+ if (this.zoomFactor_ === 2) {
+ var minX = tileCoord[1] * 2;
+ var minY = tileCoord[2] * 2;
+ return (0, _TileRange.createOrUpdate)(minX, minX + 1, minY, minY + 1, opt_tileRange);
+ }
+
+ var tileCoordExtent = this.getTileCoordExtent(tileCoord, opt_extent);
+ return this.getTileRangeForExtentAndZ(tileCoordExtent, tileCoord[0] + 1, opt_tileRange);
+ }
+
+ return null;
+ };
+ /**
+ * Get the extent for a tile range.
+ * @param {number} z Integer zoom level.
+ * @param {import("../TileRange.js").default} tileRange Tile range.
+ * @param {import("../extent.js").Extent=} opt_extent Temporary import("../extent.js").Extent object.
+ * @return {import("../extent.js").Extent} Extent.
+ */
+
+
+ TileGrid.prototype.getTileRangeExtent = function (z, tileRange, opt_extent) {
+ var origin = this.getOrigin(z);
+ var resolution = this.getResolution(z);
+ var tileSize = (0, _size.toSize)(this.getTileSize(z), this.tmpSize_);
+ var minX = origin[0] + tileRange.minX * tileSize[0] * resolution;
+ var maxX = origin[0] + (tileRange.maxX + 1) * tileSize[0] * resolution;
+ var minY = origin[1] + tileRange.minY * tileSize[1] * resolution;
+ var maxY = origin[1] + (tileRange.maxY + 1) * tileSize[1] * resolution;
+ return (0, _extent.createOrUpdate)(minX, minY, maxX, maxY, opt_extent);
+ };
+ /**
+ * Get a tile range for the given extent and integer zoom level.
+ * @param {import("../extent.js").Extent} extent Extent.
+ * @param {number} z Integer zoom level.
+ * @param {import("../TileRange.js").default=} opt_tileRange Temporary tile range object.
+ * @return {import("../TileRange.js").default} Tile range.
+ */
+
+
+ TileGrid.prototype.getTileRangeForExtentAndZ = function (extent, z, opt_tileRange) {
+ var tileCoord = tmpTileCoord;
+ this.getTileCoordForXYAndZ_(extent[0], extent[3], z, false, tileCoord);
+ var minX = tileCoord[1];
+ var minY = tileCoord[2];
+ this.getTileCoordForXYAndZ_(extent[2], extent[1], z, true, tileCoord);
+ return (0, _TileRange.createOrUpdate)(minX, tileCoord[1], minY, tileCoord[2], opt_tileRange);
+ };
+ /**
+ * @param {import("../tilecoord.js").TileCoord} tileCoord Tile coordinate.
+ * @return {import("../coordinate.js").Coordinate} Tile center.
+ */
+
+
+ TileGrid.prototype.getTileCoordCenter = function (tileCoord) {
+ var origin = this.getOrigin(tileCoord[0]);
+ var resolution = this.getResolution(tileCoord[0]);
+ var tileSize = (0, _size.toSize)(this.getTileSize(tileCoord[0]), this.tmpSize_);
+ return [origin[0] + (tileCoord[1] + 0.5) * tileSize[0] * resolution, origin[1] - (tileCoord[2] + 0.5) * tileSize[1] * resolution];
+ };
+ /**
+ * Get the extent of a tile coordinate.
+ *
+ * @param {import("../tilecoord.js").TileCoord} tileCoord Tile coordinate.
+ * @param {import("../extent.js").Extent=} opt_extent Temporary extent object.
+ * @return {import("../extent.js").Extent} Extent.
+ * @api
+ */
+
+
+ TileGrid.prototype.getTileCoordExtent = function (tileCoord, opt_extent) {
+ var origin = this.getOrigin(tileCoord[0]);
+ var resolution = this.getResolution(tileCoord[0]);
+ var tileSize = (0, _size.toSize)(this.getTileSize(tileCoord[0]), this.tmpSize_);
+ var minX = origin[0] + tileCoord[1] * tileSize[0] * resolution;
+ var minY = origin[1] - (tileCoord[2] + 1) * tileSize[1] * resolution;
+ var maxX = minX + tileSize[0] * resolution;
+ var maxY = minY + tileSize[1] * resolution;
+ return (0, _extent.createOrUpdate)(minX, minY, maxX, maxY, opt_extent);
+ };
+ /**
+ * Get the tile coordinate for the given map coordinate and resolution. This
+ * method considers that coordinates that intersect tile boundaries should be
+ * assigned the higher tile coordinate.
+ *
+ * @param {import("../coordinate.js").Coordinate} coordinate Coordinate.
+ * @param {number} resolution Resolution.
+ * @param {import("../tilecoord.js").TileCoord=} opt_tileCoord Destination import("../tilecoord.js").TileCoord object.
+ * @return {import("../tilecoord.js").TileCoord} Tile coordinate.
+ * @api
+ */
+
+
+ TileGrid.prototype.getTileCoordForCoordAndResolution = function (coordinate, resolution, opt_tileCoord) {
+ return this.getTileCoordForXYAndResolution_(coordinate[0], coordinate[1], resolution, false, opt_tileCoord);
+ };
+ /**
+ * Note that this method should not be called for resolutions that correspond
+ * to an integer zoom level. Instead call the `getTileCoordForXYAndZ_` method.
+ * @param {number} x X.
+ * @param {number} y Y.
+ * @param {number} resolution Resolution (for a non-integer zoom level).
+ * @param {boolean} reverseIntersectionPolicy Instead of letting edge
+ * intersections go to the higher tile coordinate, let edge intersections
+ * go to the lower tile coordinate.
+ * @param {import("../tilecoord.js").TileCoord=} opt_tileCoord Temporary import("../tilecoord.js").TileCoord object.
+ * @return {import("../tilecoord.js").TileCoord} Tile coordinate.
+ * @private
+ */
+
+
+ TileGrid.prototype.getTileCoordForXYAndResolution_ = function (x, y, resolution, reverseIntersectionPolicy, opt_tileCoord) {
+ var z = this.getZForResolution(resolution);
+ var scale = resolution / this.getResolution(z);
+ var origin = this.getOrigin(z);
+ var tileSize = (0, _size.toSize)(this.getTileSize(z), this.tmpSize_);
+ var adjustX = reverseIntersectionPolicy ? 0.5 : 0;
+ var adjustY = reverseIntersectionPolicy ? 0.5 : 0;
+ var xFromOrigin = Math.floor((x - origin[0]) / resolution + adjustX);
+ var yFromOrigin = Math.floor((origin[1] - y) / resolution + adjustY);
+ var tileCoordX = scale * xFromOrigin / tileSize[0];
+ var tileCoordY = scale * yFromOrigin / tileSize[1];
+
+ if (reverseIntersectionPolicy) {
+ tileCoordX = Math.ceil(tileCoordX) - 1;
+ tileCoordY = Math.ceil(tileCoordY) - 1;
+ } else {
+ tileCoordX = Math.floor(tileCoordX);
+ tileCoordY = Math.floor(tileCoordY);
+ }
+
+ return (0, _tilecoord.createOrUpdate)(z, tileCoordX, tileCoordY, opt_tileCoord);
+ };
+ /**
+ * Although there is repetition between this method and `getTileCoordForXYAndResolution_`,
+ * they should have separate implementations. This method is for integer zoom
+ * levels. The other method should only be called for resolutions corresponding
+ * to non-integer zoom levels.
+ * @param {number} x Map x coordinate.
+ * @param {number} y Map y coordinate.
+ * @param {number} z Integer zoom level.
+ * @param {boolean} reverseIntersectionPolicy Instead of letting edge
+ * intersections go to the higher tile coordinate, let edge intersections
+ * go to the lower tile coordinate.
+ * @param {import("../tilecoord.js").TileCoord=} opt_tileCoord Temporary import("../tilecoord.js").TileCoord object.
+ * @return {import("../tilecoord.js").TileCoord} Tile coordinate.
+ * @private
+ */
+
+
+ TileGrid.prototype.getTileCoordForXYAndZ_ = function (x, y, z, reverseIntersectionPolicy, opt_tileCoord) {
+ var origin = this.getOrigin(z);
+ var resolution = this.getResolution(z);
+ var tileSize = (0, _size.toSize)(this.getTileSize(z), this.tmpSize_);
+ var adjustX = reverseIntersectionPolicy ? 0.5 : 0;
+ var adjustY = reverseIntersectionPolicy ? 0.5 : 0;
+ var xFromOrigin = Math.floor((x - origin[0]) / resolution + adjustX);
+ var yFromOrigin = Math.floor((origin[1] - y) / resolution + adjustY);
+ var tileCoordX = xFromOrigin / tileSize[0];
+ var tileCoordY = yFromOrigin / tileSize[1];
+
+ if (reverseIntersectionPolicy) {
+ tileCoordX = Math.ceil(tileCoordX) - 1;
+ tileCoordY = Math.ceil(tileCoordY) - 1;
+ } else {
+ tileCoordX = Math.floor(tileCoordX);
+ tileCoordY = Math.floor(tileCoordY);
+ }
+
+ return (0, _tilecoord.createOrUpdate)(z, tileCoordX, tileCoordY, opt_tileCoord);
+ };
+ /**
+ * Get a tile coordinate given a map coordinate and zoom level.
+ * @param {import("../coordinate.js").Coordinate} coordinate Coordinate.
+ * @param {number} z Zoom level.
+ * @param {import("../tilecoord.js").TileCoord=} opt_tileCoord Destination import("../tilecoord.js").TileCoord object.
+ * @return {import("../tilecoord.js").TileCoord} Tile coordinate.
+ * @api
+ */
+
+
+ TileGrid.prototype.getTileCoordForCoordAndZ = function (coordinate, z, opt_tileCoord) {
+ return this.getTileCoordForXYAndZ_(coordinate[0], coordinate[1], z, false, opt_tileCoord);
+ };
+ /**
+ * @param {import("../tilecoord.js").TileCoord} tileCoord Tile coordinate.
+ * @return {number} Tile resolution.
+ */
+
+
+ TileGrid.prototype.getTileCoordResolution = function (tileCoord) {
+ return this.resolutions_[tileCoord[0]];
+ };
+ /**
+ * Get the tile size for a zoom level. The type of the return value matches the
+ * `tileSize` or `tileSizes` that the tile grid was configured with. To always
+ * get an `import("../size.js").Size`, run the result through `import("../size.js").Size.toSize()`.
+ * @param {number} z Z.
+ * @return {number|import("../size.js").Size} Tile size.
+ * @api
+ */
+
+
+ TileGrid.prototype.getTileSize = function (z) {
+ if (this.tileSize_) {
+ return this.tileSize_;
+ } else {
+ return this.tileSizes_[z];
+ }
+ };
+ /**
+ * @param {number} z Zoom level.
+ * @return {import("../TileRange.js").default} Extent tile range for the specified zoom level.
+ */
+
+
+ TileGrid.prototype.getFullTileRange = function (z) {
+ if (!this.fullTileRanges_) {
+ return null;
+ } else {
+ return this.fullTileRanges_[z];
+ }
+ };
+ /**
+ * @param {number} resolution Resolution.
+ * @param {number=} opt_direction If 0, the nearest resolution will be used.
+ * If 1, the nearest lower resolution will be used. If -1, the nearest
+ * higher resolution will be used. Default is 0.
+ * @return {number} Z.
+ * @api
+ */
+
+
+ TileGrid.prototype.getZForResolution = function (resolution, opt_direction) {
+ var z = (0, _array.linearFindNearest)(this.resolutions_, resolution, opt_direction || 0);
+ return (0, _math.clamp)(z, this.minZoom, this.maxZoom);
+ };
+ /**
+ * @param {!import("../extent.js").Extent} extent Extent for this tile grid.
+ * @private
+ */
+
+
+ TileGrid.prototype.calculateTileRanges_ = function (extent) {
+ var length = this.resolutions_.length;
+ var fullTileRanges = new Array(length);
+
+ for (var z = this.minZoom; z < length; ++z) {
+ fullTileRanges[z] = this.getTileRangeForExtentAndZ(extent, z);
+ }
+
+ this.fullTileRanges_ = fullTileRanges;
+ };
+
+ return TileGrid;
+}();
+
+var _default = TileGrid;
+exports.default = _default;
+},{"../TileRange.js":"../../../node_modules/ol/TileRange.js","./common.js":"../../../node_modules/ol/tilegrid/common.js","../asserts.js":"../../../node_modules/ol/asserts.js","../math.js":"../../../node_modules/ol/math.js","../extent.js":"../../../node_modules/ol/extent.js","../tilecoord.js":"../../../node_modules/ol/tilecoord.js","../array.js":"../../../node_modules/ol/array.js","../size.js":"../../../node_modules/ol/size.js"}],"../../../node_modules/ol/tilegrid.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.getForProjection = getForProjection;
+exports.wrapX = wrapX;
+exports.createForExtent = createForExtent;
+exports.createXYZ = createXYZ;
+exports.createForProjection = createForProjection;
+exports.extentFromProjection = extentFromProjection;
+
+var _Corner = _interopRequireDefault(require("./extent/Corner.js"));
+
+var _TileGrid = _interopRequireDefault(require("./tilegrid/TileGrid.js"));
+
+var _Units = _interopRequireDefault(require("./proj/Units.js"));
+
+var _common = require("./tilegrid/common.js");
+
+var _proj = require("./proj.js");
+
+var _extent = require("./extent.js");
+
+var _size = require("./size.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module ol/tilegrid
+ */
+
+/**
+ * @param {import("./proj/Projection.js").default} projection Projection.
+ * @return {!TileGrid} Default tile grid for the
+ * passed projection.
+ */
+function getForProjection(projection) {
+ var tileGrid = projection.getDefaultTileGrid();
+
+ if (!tileGrid) {
+ tileGrid = createForProjection(projection);
+ projection.setDefaultTileGrid(tileGrid);
+ }
+
+ return tileGrid;
+}
+/**
+ * @param {TileGrid} tileGrid Tile grid.
+ * @param {import("./tilecoord.js").TileCoord} tileCoord Tile coordinate.
+ * @param {import("./proj/Projection.js").default} projection Projection.
+ * @return {import("./tilecoord.js").TileCoord} Tile coordinate.
+ */
+
+
+function wrapX(tileGrid, tileCoord, projection) {
+ var z = tileCoord[0];
+ var center = tileGrid.getTileCoordCenter(tileCoord);
+ var projectionExtent = extentFromProjection(projection);
+
+ if (!(0, _extent.containsCoordinate)(projectionExtent, center)) {
+ var worldWidth = (0, _extent.getWidth)(projectionExtent);
+ var worldsAway = Math.ceil((projectionExtent[0] - center[0]) / worldWidth);
+ center[0] += worldWidth * worldsAway;
+ return tileGrid.getTileCoordForCoordAndZ(center, z);
+ } else {
+ return tileCoord;
+ }
+}
+/**
+ * @param {import("./extent.js").Extent} extent Extent.
+ * @param {number=} opt_maxZoom Maximum zoom level (default is
+ * DEFAULT_MAX_ZOOM).
+ * @param {number|import("./size.js").Size=} opt_tileSize Tile size (default uses
+ * DEFAULT_TILE_SIZE).
+ * @param {import("./extent/Corner.js").default=} opt_corner Extent corner (default is `'top-left'`).
+ * @return {!TileGrid} TileGrid instance.
+ */
+
+
+function createForExtent(extent, opt_maxZoom, opt_tileSize, opt_corner) {
+ var corner = opt_corner !== undefined ? opt_corner : _Corner.default.TOP_LEFT;
+ var resolutions = resolutionsFromExtent(extent, opt_maxZoom, opt_tileSize);
+ return new _TileGrid.default({
+ extent: extent,
+ origin: (0, _extent.getCorner)(extent, corner),
+ resolutions: resolutions,
+ tileSize: opt_tileSize
+ });
+}
+/**
+ * @typedef {Object} XYZOptions
+ * @property {import("./extent.js").Extent} [extent] Extent for the tile grid. The origin for an XYZ tile grid is the
+ * top-left corner of the extent. If `maxResolution` is not provided the zero level of the grid is defined by the resolution
+ * at which one tile fits in the provided extent. If not provided, the extent of the EPSG:3857 projection is used.
+ * @property {number} [maxResolution] Resolution at level zero.
+ * @property {number} [maxZoom] Maximum zoom. The default is `42`. This determines the number of levels
+ * in the grid set. For example, a `maxZoom` of 21 means there are 22 levels in the grid set.
+ * @property {number} [minZoom=0] Minimum zoom.
+ * @property {number|import("./size.js").Size} [tileSize=[256, 256]] Tile size in pixels.
+ */
+
+/**
+ * Creates a tile grid with a standard XYZ tiling scheme.
+ * @param {XYZOptions=} opt_options Tile grid options.
+ * @return {!TileGrid} Tile grid instance.
+ * @api
+ */
+
+
+function createXYZ(opt_options) {
+ var xyzOptions = opt_options || {};
+ var extent = xyzOptions.extent || (0, _proj.get)('EPSG:3857').getExtent();
+ var gridOptions = {
+ extent: extent,
+ minZoom: xyzOptions.minZoom,
+ tileSize: xyzOptions.tileSize,
+ resolutions: resolutionsFromExtent(extent, xyzOptions.maxZoom, xyzOptions.tileSize, xyzOptions.maxResolution)
+ };
+ return new _TileGrid.default(gridOptions);
+}
+/**
+ * Create a resolutions array from an extent. A zoom factor of 2 is assumed.
+ * @param {import("./extent.js").Extent} extent Extent.
+ * @param {number=} opt_maxZoom Maximum zoom level (default is
+ * DEFAULT_MAX_ZOOM).
+ * @param {number|import("./size.js").Size=} opt_tileSize Tile size (default uses
+ * DEFAULT_TILE_SIZE).
+ * @param {number=} opt_maxResolution Resolution at level zero.
+ * @return {!Array<number>} Resolutions array.
+ */
+
+
+function resolutionsFromExtent(extent, opt_maxZoom, opt_tileSize, opt_maxResolution) {
+ var maxZoom = opt_maxZoom !== undefined ? opt_maxZoom : _common.DEFAULT_MAX_ZOOM;
+ var height = (0, _extent.getHeight)(extent);
+ var width = (0, _extent.getWidth)(extent);
+ var tileSize = (0, _size.toSize)(opt_tileSize !== undefined ? opt_tileSize : _common.DEFAULT_TILE_SIZE);
+ var maxResolution = opt_maxResolution > 0 ? opt_maxResolution : Math.max(width / tileSize[0], height / tileSize[1]);
+ var length = maxZoom + 1;
+ var resolutions = new Array(length);
+
+ for (var z = 0; z < length; ++z) {
+ resolutions[z] = maxResolution / Math.pow(2, z);
+ }
+
+ return resolutions;
+}
+/**
+ * @param {import("./proj.js").ProjectionLike} projection Projection.
+ * @param {number=} opt_maxZoom Maximum zoom level (default is
+ * DEFAULT_MAX_ZOOM).
+ * @param {number|import("./size.js").Size=} opt_tileSize Tile size (default uses
+ * DEFAULT_TILE_SIZE).
+ * @param {import("./extent/Corner.js").default=} opt_corner Extent corner (default is `'top-left'`).
+ * @return {!TileGrid} TileGrid instance.
+ */
+
+
+function createForProjection(projection, opt_maxZoom, opt_tileSize, opt_corner) {
+ var extent = extentFromProjection(projection);
+ return createForExtent(extent, opt_maxZoom, opt_tileSize, opt_corner);
+}
+/**
+ * Generate a tile grid extent from a projection. If the projection has an
+ * extent, it is used. If not, a global extent is assumed.
+ * @param {import("./proj.js").ProjectionLike} projection Projection.
+ * @return {import("./extent.js").Extent} Extent.
+ */
+
+
+function extentFromProjection(projection) {
+ projection = (0, _proj.get)(projection);
+ var extent = projection.getExtent();
+
+ if (!extent) {
+ var half = 180 * _proj.METERS_PER_UNIT[_Units.default.DEGREES] / projection.getMetersPerUnit();
+ extent = (0, _extent.createOrUpdate)(-half, -half, half, half);
+ }
+
+ return extent;
+}
+},{"./extent/Corner.js":"../../../node_modules/ol/extent/Corner.js","./tilegrid/TileGrid.js":"../../../node_modules/ol/tilegrid/TileGrid.js","./proj/Units.js":"../../../node_modules/ol/proj/Units.js","./tilegrid/common.js":"../../../node_modules/ol/tilegrid/common.js","./proj.js":"../../../node_modules/ol/proj.js","./extent.js":"../../../node_modules/ol/extent.js","./size.js":"../../../node_modules/ol/size.js"}],"../../../node_modules/ol/source/Tile.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = exports.TileSourceEvent = void 0;
+
+var _Event = _interopRequireDefault(require("../events/Event.js"));
+
+var _Source = _interopRequireDefault(require("./Source.js"));
+
+var _TileCache = _interopRequireDefault(require("../TileCache.js"));
+
+var _TileState = _interopRequireDefault(require("../TileState.js"));
+
+var _util = require("../util.js");
+
+var _proj = require("../proj.js");
+
+var _tilecoord = require("../tilecoord.js");
+
+var _tilegrid = require("../tilegrid.js");
+
+var _size = require("../size.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/source/Tile
+ */
+
+
+/**
+ * @typedef {Object} Options
+ * @property {import("./Source.js").AttributionLike} [attributions]
+ * @property {boolean} [attributionsCollapsible=true] Attributions are collapsible.
+ * @property {number} [cacheSize]
+ * @property {boolean} [opaque=false] Whether the layer is opaque.
+ * @property {number} [tilePixelRatio]
+ * @property {import("../proj.js").ProjectionLike} [projection]
+ * @property {import("./State.js").default} [state]
+ * @property {import("../tilegrid/TileGrid.js").default} [tileGrid]
+ * @property {boolean} [wrapX=true]
+ * @property {number} [transition]
+ * @property {string} [key]
+ * @property {number} [zDirection=0]
+ */
+
+/**
+ * @classdesc
+ * Abstract base class; normally only used for creating subclasses and not
+ * instantiated in apps.
+ * Base class for sources providing images divided into a tile grid.
+ * @abstract
+ * @api
+ */
+var TileSource =
+/** @class */
+function (_super) {
+ __extends(TileSource, _super);
+ /**
+ * @param {Options} options SourceTile source options.
+ */
+
+
+ function TileSource(options) {
+ var _this = _super.call(this, {
+ attributions: options.attributions,
+ attributionsCollapsible: options.attributionsCollapsible,
+ projection: options.projection,
+ state: options.state,
+ wrapX: options.wrapX
+ }) || this;
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+
+ _this.opaque_ = options.opaque !== undefined ? options.opaque : false;
+ /**
+ * @private
+ * @type {number}
+ */
+
+ _this.tilePixelRatio_ = options.tilePixelRatio !== undefined ? options.tilePixelRatio : 1;
+ /**
+ * @protected
+ * @type {import("../tilegrid/TileGrid.js").default}
+ */
+
+ _this.tileGrid = options.tileGrid !== undefined ? options.tileGrid : null;
+ var tileSize = [256, 256];
+ var tileGrid = options.tileGrid;
+
+ if (tileGrid) {
+ (0, _size.toSize)(tileGrid.getTileSize(tileGrid.getMinZoom()), tileSize);
+ }
+ /**
+ * @protected
+ * @type {import("../TileCache.js").default}
+ */
+
+
+ _this.tileCache = new _TileCache.default(options.cacheSize || 0);
+ /**
+ * @protected
+ * @type {import("../size.js").Size}
+ */
+
+ _this.tmpSize = [0, 0];
+ /**
+ * @private
+ * @type {string}
+ */
+
+ _this.key_ = options.key || '';
+ /**
+ * @protected
+ * @type {import("../Tile.js").Options}
+ */
+
+ _this.tileOptions = {
+ transition: options.transition
+ };
+ /**
+ * zDirection hint, read by the renderer. Indicates which resolution should be used
+ * by a renderer if the views resolution does not match any resolution of the tile source.
+ * If 0, the nearest resolution will be used. If 1, the nearest lower resolution
+ * will be used. If -1, the nearest higher resolution will be used.
+ * @type {number}
+ */
+
+ _this.zDirection = options.zDirection ? options.zDirection : 0;
+ return _this;
+ }
+ /**
+ * @return {boolean} Can expire cache.
+ */
+
+
+ TileSource.prototype.canExpireCache = function () {
+ return this.tileCache.canExpireCache();
+ };
+ /**
+ * @param {import("../proj/Projection.js").default} projection Projection.
+ * @param {!Object<string, boolean>} usedTiles Used tiles.
+ */
+
+
+ TileSource.prototype.expireCache = function (projection, usedTiles) {
+ var tileCache = this.getTileCacheForProjection(projection);
+
+ if (tileCache) {
+ tileCache.expireCache(usedTiles);
+ }
+ };
+ /**
+ * @param {import("../proj/Projection.js").default} projection Projection.
+ * @param {number} z Zoom level.
+ * @param {import("../TileRange.js").default} tileRange Tile range.
+ * @param {function(import("../Tile.js").default):(boolean|void)} callback Called with each
+ * loaded tile. If the callback returns `false`, the tile will not be
+ * considered loaded.
+ * @return {boolean} The tile range is fully covered with loaded tiles.
+ */
+
+
+ TileSource.prototype.forEachLoadedTile = function (projection, z, tileRange, callback) {
+ var tileCache = this.getTileCacheForProjection(projection);
+
+ if (!tileCache) {
+ return false;
+ }
+
+ var covered = true;
+ var tile, tileCoordKey, loaded;
+
+ for (var x = tileRange.minX; x <= tileRange.maxX; ++x) {
+ for (var y = tileRange.minY; y <= tileRange.maxY; ++y) {
+ tileCoordKey = (0, _tilecoord.getKeyZXY)(z, x, y);
+ loaded = false;
+
+ if (tileCache.containsKey(tileCoordKey)) {
+ tile =
+ /** @type {!import("../Tile.js").default} */
+ tileCache.get(tileCoordKey);
+ loaded = tile.getState() === _TileState.default.LOADED;
+
+ if (loaded) {
+ loaded = callback(tile) !== false;
+ }
+ }
+
+ if (!loaded) {
+ covered = false;
+ }
+ }
+ }
+
+ return covered;
+ };
+ /**
+ * @param {import("../proj/Projection.js").default} projection Projection.
+ * @return {number} Gutter.
+ */
+
+
+ TileSource.prototype.getGutterForProjection = function (projection) {
+ return 0;
+ };
+ /**
+ * Return the key to be used for all tiles in the source.
+ * @return {string} The key for all tiles.
+ * @protected
+ */
+
+
+ TileSource.prototype.getKey = function () {
+ return this.key_;
+ };
+ /**
+ * Set the value to be used as the key for all tiles in the source.
+ * @param {string} key The key for tiles.
+ * @protected
+ */
+
+
+ TileSource.prototype.setKey = function (key) {
+ if (this.key_ !== key) {
+ this.key_ = key;
+ this.changed();
+ }
+ };
+ /**
+ * @param {import("../proj/Projection.js").default} projection Projection.
+ * @return {boolean} Opaque.
+ */
+
+
+ TileSource.prototype.getOpaque = function (projection) {
+ return this.opaque_;
+ };
+ /**
+ * @return {Array<number>} Resolutions.
+ */
+
+
+ TileSource.prototype.getResolutions = function () {
+ return this.tileGrid.getResolutions();
+ };
+ /**
+ * @abstract
+ * @param {number} z Tile coordinate z.
+ * @param {number} x Tile coordinate x.
+ * @param {number} y Tile coordinate y.
+ * @param {number} pixelRatio Pixel ratio.
+ * @param {import("../proj/Projection.js").default} projection Projection.
+ * @return {!import("../Tile.js").default} Tile.
+ */
+
+
+ TileSource.prototype.getTile = function (z, x, y, pixelRatio, projection) {
+ return (0, _util.abstract)();
+ };
+ /**
+ * Return the tile grid of the tile source.
+ * @return {import("../tilegrid/TileGrid.js").default} Tile grid.
+ * @api
+ */
+
+
+ TileSource.prototype.getTileGrid = function () {
+ return this.tileGrid;
+ };
+ /**
+ * @param {import("../proj/Projection.js").default} projection Projection.
+ * @return {!import("../tilegrid/TileGrid.js").default} Tile grid.
+ */
+
+
+ TileSource.prototype.getTileGridForProjection = function (projection) {
+ if (!this.tileGrid) {
+ return (0, _tilegrid.getForProjection)(projection);
+ } else {
+ return this.tileGrid;
+ }
+ };
+ /**
+ * @param {import("../proj/Projection.js").default} projection Projection.
+ * @return {import("../TileCache.js").default} Tile cache.
+ * @protected
+ */
+
+
+ TileSource.prototype.getTileCacheForProjection = function (projection) {
+ var thisProj = this.getProjection();
+
+ if (thisProj && !(0, _proj.equivalent)(thisProj, projection)) {
+ return null;
+ } else {
+ return this.tileCache;
+ }
+ };
+ /**
+ * Get the tile pixel ratio for this source. Subclasses may override this
+ * method, which is meant to return a supported pixel ratio that matches the
+ * provided `pixelRatio` as close as possible.
+ * @param {number} pixelRatio Pixel ratio.
+ * @return {number} Tile pixel ratio.
+ */
+
+
+ TileSource.prototype.getTilePixelRatio = function (pixelRatio) {
+ return this.tilePixelRatio_;
+ };
+ /**
+ * @param {number} z Z.
+ * @param {number} pixelRatio Pixel ratio.
+ * @param {import("../proj/Projection.js").default} projection Projection.
+ * @return {import("../size.js").Size} Tile size.
+ */
+
+
+ TileSource.prototype.getTilePixelSize = function (z, pixelRatio, projection) {
+ var tileGrid = this.getTileGridForProjection(projection);
+ var tilePixelRatio = this.getTilePixelRatio(pixelRatio);
+ var tileSize = (0, _size.toSize)(tileGrid.getTileSize(z), this.tmpSize);
+
+ if (tilePixelRatio == 1) {
+ return tileSize;
+ } else {
+ return (0, _size.scale)(tileSize, tilePixelRatio, this.tmpSize);
+ }
+ };
+ /**
+ * Returns a tile coordinate wrapped around the x-axis. When the tile coordinate
+ * is outside the resolution and extent range of the tile grid, `null` will be
+ * returned.
+ * @param {import("../tilecoord.js").TileCoord} tileCoord Tile coordinate.
+ * @param {import("../proj/Projection.js").default=} opt_projection Projection.
+ * @return {import("../tilecoord.js").TileCoord} Tile coordinate to be passed to the tileUrlFunction or
+ * null if no tile URL should be created for the passed `tileCoord`.
+ */
+
+
+ TileSource.prototype.getTileCoordForTileUrlFunction = function (tileCoord, opt_projection) {
+ var projection = opt_projection !== undefined ? opt_projection : this.getProjection();
+ var tileGrid = this.getTileGridForProjection(projection);
+
+ if (this.getWrapX() && projection.isGlobal()) {
+ tileCoord = (0, _tilegrid.wrapX)(tileGrid, tileCoord, projection);
+ }
+
+ return (0, _tilecoord.withinExtentAndZ)(tileCoord, tileGrid) ? tileCoord : null;
+ };
+ /**
+ * Remove all cached tiles from the source. The next render cycle will fetch new tiles.
+ * @api
+ */
+
+
+ TileSource.prototype.clear = function () {
+ this.tileCache.clear();
+ };
+
+ TileSource.prototype.refresh = function () {
+ this.clear();
+
+ _super.prototype.refresh.call(this);
+ };
+ /**
+ * Increases the cache size if needed
+ * @param {number} tileCount Minimum number of tiles needed.
+ * @param {import("../proj/Projection.js").default} projection Projection.
+ */
+
+
+ TileSource.prototype.updateCacheSize = function (tileCount, projection) {
+ var tileCache = this.getTileCacheForProjection(projection);
+
+ if (tileCount > tileCache.highWaterMark) {
+ tileCache.highWaterMark = tileCount;
+ }
+ };
+ /**
+ * Marks a tile coord as being used, without triggering a load.
+ * @abstract
+ * @param {number} z Tile coordinate z.
+ * @param {number} x Tile coordinate x.
+ * @param {number} y Tile coordinate y.
+ * @param {import("../proj/Projection.js").default} projection Projection.
+ */
+
+
+ TileSource.prototype.useTile = function (z, x, y, projection) {};
+
+ return TileSource;
+}(_Source.default);
+/**
+ * @classdesc
+ * Events emitted by {@link module:ol/source/Tile~TileSource} instances are instances of this
+ * type.
+ */
+
+
+var TileSourceEvent =
+/** @class */
+function (_super) {
+ __extends(TileSourceEvent, _super);
+ /**
+ * @param {string} type Type.
+ * @param {import("../Tile.js").default} tile The tile.
+ */
+
+
+ function TileSourceEvent(type, tile) {
+ var _this = _super.call(this, type) || this;
+ /**
+ * The tile related to the event.
+ * @type {import("../Tile.js").default}
+ * @api
+ */
+
+
+ _this.tile = tile;
+ return _this;
+ }
+
+ return TileSourceEvent;
+}(_Event.default);
+
+exports.TileSourceEvent = TileSourceEvent;
+var _default = TileSource;
+exports.default = _default;
+},{"../events/Event.js":"../../../node_modules/ol/events/Event.js","./Source.js":"../../../node_modules/ol/source/Source.js","../TileCache.js":"../../../node_modules/ol/TileCache.js","../TileState.js":"../../../node_modules/ol/TileState.js","../util.js":"../../../node_modules/ol/util.js","../proj.js":"../../../node_modules/ol/proj.js","../tilecoord.js":"../../../node_modules/ol/tilecoord.js","../tilegrid.js":"../../../node_modules/ol/tilegrid.js","../size.js":"../../../node_modules/ol/size.js"}],"../../../node_modules/ol/tileurlfunction.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.createFromTemplate = createFromTemplate;
+exports.createFromTemplates = createFromTemplates;
+exports.createFromTileUrlFunctions = createFromTileUrlFunctions;
+exports.nullTileUrlFunction = nullTileUrlFunction;
+exports.expandUrl = expandUrl;
+
+var _asserts = require("./asserts.js");
+
+var _math = require("./math.js");
+
+var _tilecoord = require("./tilecoord.js");
+
+/**
+ * @module ol/tileurlfunction
+ */
+
+/**
+ * @param {string} template Template.
+ * @param {import("./tilegrid/TileGrid.js").default} tileGrid Tile grid.
+ * @return {import("./Tile.js").UrlFunction} Tile URL function.
+ */
+function createFromTemplate(template, tileGrid) {
+ var zRegEx = /\{z\}/g;
+ var xRegEx = /\{x\}/g;
+ var yRegEx = /\{y\}/g;
+ var dashYRegEx = /\{-y\}/g;
+ return (
+ /**
+ * @param {import("./tilecoord.js").TileCoord} tileCoord Tile Coordinate.
+ * @param {number} pixelRatio Pixel ratio.
+ * @param {import("./proj/Projection.js").default} projection Projection.
+ * @return {string|undefined} Tile URL.
+ */
+ function (tileCoord, pixelRatio, projection) {
+ if (!tileCoord) {
+ return undefined;
+ } else {
+ return template.replace(zRegEx, tileCoord[0].toString()).replace(xRegEx, tileCoord[1].toString()).replace(yRegEx, tileCoord[2].toString()).replace(dashYRegEx, function () {
+ var z = tileCoord[0];
+ var range = tileGrid.getFullTileRange(z);
+ (0, _asserts.assert)(range, 55); // The {-y} placeholder requires a tile grid with extent
+
+ var y = range.getHeight() - tileCoord[2] - 1;
+ return y.toString();
+ });
+ }
+ }
+ );
+}
+/**
+ * @param {Array<string>} templates Templates.
+ * @param {import("./tilegrid/TileGrid.js").default} tileGrid Tile grid.
+ * @return {import("./Tile.js").UrlFunction} Tile URL function.
+ */
+
+
+function createFromTemplates(templates, tileGrid) {
+ var len = templates.length;
+ var tileUrlFunctions = new Array(len);
+
+ for (var i = 0; i < len; ++i) {
+ tileUrlFunctions[i] = createFromTemplate(templates[i], tileGrid);
+ }
+
+ return createFromTileUrlFunctions(tileUrlFunctions);
+}
+/**
+ * @param {Array<import("./Tile.js").UrlFunction>} tileUrlFunctions Tile URL Functions.
+ * @return {import("./Tile.js").UrlFunction} Tile URL function.
+ */
+
+
+function createFromTileUrlFunctions(tileUrlFunctions) {
+ if (tileUrlFunctions.length === 1) {
+ return tileUrlFunctions[0];
+ }
+
+ return (
+ /**
+ * @param {import("./tilecoord.js").TileCoord} tileCoord Tile Coordinate.
+ * @param {number} pixelRatio Pixel ratio.
+ * @param {import("./proj/Projection.js").default} projection Projection.
+ * @return {string|undefined} Tile URL.
+ */
+ function (tileCoord, pixelRatio, projection) {
+ if (!tileCoord) {
+ return undefined;
+ } else {
+ var h = (0, _tilecoord.hash)(tileCoord);
+ var index = (0, _math.modulo)(h, tileUrlFunctions.length);
+ return tileUrlFunctions[index](tileCoord, pixelRatio, projection);
+ }
+ }
+ );
+}
+/**
+ * @param {import("./tilecoord.js").TileCoord} tileCoord Tile coordinate.
+ * @param {number} pixelRatio Pixel ratio.
+ * @param {import("./proj/Projection.js").default} projection Projection.
+ * @return {string|undefined} Tile URL.
+ */
+
+
+function nullTileUrlFunction(tileCoord, pixelRatio, projection) {
+ return undefined;
+}
+/**
+ * @param {string} url URL.
+ * @return {Array<string>} Array of urls.
+ */
+
+
+function expandUrl(url) {
+ var urls = [];
+ var match = /\{([a-z])-([a-z])\}/.exec(url);
+
+ if (match) {
+ // char range
+ var startCharCode = match[1].charCodeAt(0);
+ var stopCharCode = match[2].charCodeAt(0);
+ var charCode = void 0;
+
+ for (charCode = startCharCode; charCode <= stopCharCode; ++charCode) {
+ urls.push(url.replace(match[0], String.fromCharCode(charCode)));
+ }
+
+ return urls;
+ }
+
+ match = /\{(\d+)-(\d+)\}/.exec(url);
+
+ if (match) {
+ // number range
+ var stop_1 = parseInt(match[2], 10);
+
+ for (var i = parseInt(match[1], 10); i <= stop_1; i++) {
+ urls.push(url.replace(match[0], i.toString()));
+ }
+
+ return urls;
+ }
+
+ urls.push(url);
+ return urls;
+}
+},{"./asserts.js":"../../../node_modules/ol/asserts.js","./math.js":"../../../node_modules/ol/math.js","./tilecoord.js":"../../../node_modules/ol/tilecoord.js"}],"../../../node_modules/ol/source/UrlTile.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _TileEventType = _interopRequireDefault(require("./TileEventType.js"));
+
+var _Tile = _interopRequireWildcard(require("./Tile.js"));
+
+var _TileState = _interopRequireDefault(require("../TileState.js"));
+
+var _tileurlfunction = require("../tileurlfunction.js");
+
+var _tilecoord = require("../tilecoord.js");
+
+var _util = require("../util.js");
+
+function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/source/UrlTile
+ */
+
+
+/**
+ * @typedef {Object} Options
+ * @property {import("./Source.js").AttributionLike} [attributions]
+ * @property {boolean} [attributionsCollapsible=true] Attributions are collapsible.
+ * @property {number} [cacheSize]
+ * @property {boolean} [opaque=false] Whether the layer is opaque.
+ * @property {import("../proj.js").ProjectionLike} [projection]
+ * @property {import("./State.js").default} [state]
+ * @property {import("../tilegrid/TileGrid.js").default} [tileGrid]
+ * @property {import("../Tile.js").LoadFunction} tileLoadFunction
+ * @property {number} [tilePixelRatio]
+ * @property {import("../Tile.js").UrlFunction} [tileUrlFunction]
+ * @property {string} [url]
+ * @property {Array<string>} [urls]
+ * @property {boolean} [wrapX=true]
+ * @property {number} [transition]
+ * @property {string} [key]
+ * @property {number} [zDirection=0]
+ */
+
+/**
+ * @classdesc
+ * Base class for sources providing tiles divided into a tile grid over http.
+ *
+ * @fires import("./Tile.js").TileSourceEvent
+ */
+var UrlTile =
+/** @class */
+function (_super) {
+ __extends(UrlTile, _super);
+ /**
+ * @param {Options} options Image tile options.
+ */
+
+
+ function UrlTile(options) {
+ var _this = _super.call(this, {
+ attributions: options.attributions,
+ cacheSize: options.cacheSize,
+ opaque: options.opaque,
+ projection: options.projection,
+ state: options.state,
+ tileGrid: options.tileGrid,
+ tilePixelRatio: options.tilePixelRatio,
+ wrapX: options.wrapX,
+ transition: options.transition,
+ key: options.key,
+ attributionsCollapsible: options.attributionsCollapsible,
+ zDirection: options.zDirection
+ }) || this;
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+
+ _this.generateTileUrlFunction_ = _this.tileUrlFunction === UrlTile.prototype.tileUrlFunction;
+ /**
+ * @protected
+ * @type {import("../Tile.js").LoadFunction}
+ */
+
+ _this.tileLoadFunction = options.tileLoadFunction;
+
+ if (options.tileUrlFunction) {
+ _this.tileUrlFunction = options.tileUrlFunction.bind(_this);
+ }
+ /**
+ * @protected
+ * @type {!Array<string>|null}
+ */
+
+
+ _this.urls = null;
+
+ if (options.urls) {
+ _this.setUrls(options.urls);
+ } else if (options.url) {
+ _this.setUrl(options.url);
+ }
+ /**
+ * @private
+ * @type {!Object<string, boolean>}
+ */
+
+
+ _this.tileLoadingKeys_ = {};
+ return _this;
+ }
+ /**
+ * Return the tile load function of the source.
+ * @return {import("../Tile.js").LoadFunction} TileLoadFunction
+ * @api
+ */
+
+
+ UrlTile.prototype.getTileLoadFunction = function () {
+ return this.tileLoadFunction;
+ };
+ /**
+ * Return the tile URL function of the source.
+ * @return {import("../Tile.js").UrlFunction} TileUrlFunction
+ * @api
+ */
+
+
+ UrlTile.prototype.getTileUrlFunction = function () {
+ return this.tileUrlFunction;
+ };
+ /**
+ * Return the URLs used for this source.
+ * When a tileUrlFunction is used instead of url or urls,
+ * null will be returned.
+ * @return {!Array<string>|null} URLs.
+ * @api
+ */
+
+
+ UrlTile.prototype.getUrls = function () {
+ return this.urls;
+ };
+ /**
+ * Handle tile change events.
+ * @param {import("../events/Event.js").default} event Event.
+ * @protected
+ */
+
+
+ UrlTile.prototype.handleTileChange = function (event) {
+ var tile =
+ /** @type {import("../Tile.js").default} */
+ event.target;
+ var uid = (0, _util.getUid)(tile);
+ var tileState = tile.getState();
+ var type;
+
+ if (tileState == _TileState.default.LOADING) {
+ this.tileLoadingKeys_[uid] = true;
+ type = _TileEventType.default.TILELOADSTART;
+ } else if (uid in this.tileLoadingKeys_) {
+ delete this.tileLoadingKeys_[uid];
+ type = tileState == _TileState.default.ERROR ? _TileEventType.default.TILELOADERROR : tileState == _TileState.default.LOADED ? _TileEventType.default.TILELOADEND : undefined;
+ }
+
+ if (type != undefined) {
+ this.dispatchEvent(new _Tile.TileSourceEvent(type, tile));
+ }
+ };
+ /**
+ * Set the tile load function of the source.
+ * @param {import("../Tile.js").LoadFunction} tileLoadFunction Tile load function.
+ * @api
+ */
+
+
+ UrlTile.prototype.setTileLoadFunction = function (tileLoadFunction) {
+ this.tileCache.clear();
+ this.tileLoadFunction = tileLoadFunction;
+ this.changed();
+ };
+ /**
+ * Set the tile URL function of the source.
+ * @param {import("../Tile.js").UrlFunction} tileUrlFunction Tile URL function.
+ * @param {string=} key Optional new tile key for the source.
+ * @api
+ */
+
+
+ UrlTile.prototype.setTileUrlFunction = function (tileUrlFunction, key) {
+ this.tileUrlFunction = tileUrlFunction;
+ this.tileCache.pruneExceptNewestZ();
+
+ if (typeof key !== 'undefined') {
+ this.setKey(key);
+ } else {
+ this.changed();
+ }
+ };
+ /**
+ * Set the URL to use for requests.
+ * @param {string} url URL.
+ * @api
+ */
+
+
+ UrlTile.prototype.setUrl = function (url) {
+ var urls = (0, _tileurlfunction.expandUrl)(url);
+ this.urls = urls;
+ this.setUrls(urls);
+ };
+ /**
+ * Set the URLs to use for requests.
+ * @param {Array<string>} urls URLs.
+ * @api
+ */
+
+
+ UrlTile.prototype.setUrls = function (urls) {
+ this.urls = urls;
+ var key = urls.join('\n');
+
+ if (this.generateTileUrlFunction_) {
+ this.setTileUrlFunction((0, _tileurlfunction.createFromTemplates)(urls, this.tileGrid), key);
+ } else {
+ this.setKey(key);
+ }
+ };
+ /**
+ * @param {import("../tilecoord.js").TileCoord} tileCoord Tile coordinate.
+ * @param {number} pixelRatio Pixel ratio.
+ * @param {import("../proj/Projection.js").default} projection Projection.
+ * @return {string|undefined} Tile URL.
+ */
+
+
+ UrlTile.prototype.tileUrlFunction = function (tileCoord, pixelRatio, projection) {
+ return undefined;
+ };
+ /**
+ * Marks a tile coord as being used, without triggering a load.
+ * @param {number} z Tile coordinate z.
+ * @param {number} x Tile coordinate x.
+ * @param {number} y Tile coordinate y.
+ */
+
+
+ UrlTile.prototype.useTile = function (z, x, y) {
+ var tileCoordKey = (0, _tilecoord.getKeyZXY)(z, x, y);
+
+ if (this.tileCache.containsKey(tileCoordKey)) {
+ this.tileCache.get(tileCoordKey);
+ }
+ };
+
+ return UrlTile;
+}(_Tile.default);
+
+var _default = UrlTile;
+exports.default = _default;
+},{"./TileEventType.js":"../../../node_modules/ol/source/TileEventType.js","./Tile.js":"../../../node_modules/ol/source/Tile.js","../TileState.js":"../../../node_modules/ol/TileState.js","../tileurlfunction.js":"../../../node_modules/ol/tileurlfunction.js","../tilecoord.js":"../../../node_modules/ol/tilecoord.js","../util.js":"../../../node_modules/ol/util.js"}],"../../../node_modules/ol/source/TileImage.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _EventType = _interopRequireDefault(require("../events/EventType.js"));
+
+var _ImageTile = _interopRequireDefault(require("../ImageTile.js"));
+
+var _Tile = _interopRequireDefault(require("../reproj/Tile.js"));
+
+var _TileCache = _interopRequireDefault(require("../TileCache.js"));
+
+var _TileState = _interopRequireDefault(require("../TileState.js"));
+
+var _UrlTile = _interopRequireDefault(require("./UrlTile.js"));
+
+var _common = require("../reproj/common.js");
+
+var _common2 = require("./common.js");
+
+var _proj = require("../proj.js");
+
+var _tilecoord = require("../tilecoord.js");
+
+var _tilegrid = require("../tilegrid.js");
+
+var _util = require("../util.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+/**
+ * @module ol/source/TileImage
+ */
+
+
+/**
+ * @typedef {Object} Options
+ * @property {import("./Source.js").AttributionLike} [attributions] Attributions.
+ * @property {boolean} [attributionsCollapsible=true] Attributions are collapsible.
+ * @property {number} [cacheSize] Initial tile cache size. Will auto-grow to hold at least the number of tiles in the viewport.
+ * @property {null|string} [crossOrigin] The `crossOrigin` attribute for loaded images. Note that
+ * you must provide a `crossOrigin` value if you want to access pixel data with the Canvas renderer.
+ * See https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_enabled_image for more detail.
+ * @property {boolean} [imageSmoothing=true] Enable image smoothing.
+ * @property {boolean} [opaque=false] Whether the layer is opaque.
+ * @property {import("../proj.js").ProjectionLike} [projection] Projection. Default is the view projection.
+ * @property {number} [reprojectionErrorThreshold=0.5] Maximum allowed reprojection error (in pixels).
+ * Higher values can increase reprojection performance, but decrease precision.
+ * @property {import("./State.js").default} [state] Source state.
+ * @property {typeof import("../ImageTile.js").default} [tileClass] Class used to instantiate image tiles.
+ * Default is {@link module:ol/ImageTile~ImageTile}.
+ * @property {import("../tilegrid/TileGrid.js").default} [tileGrid] Tile grid.
+ * @property {import("../Tile.js").LoadFunction} [tileLoadFunction] Optional function to load a tile given a URL. The default is
+ * ```js
+ * function(imageTile, src) {
+ * imageTile.getImage().src = src;
+ * };
+ * ```
+ * @property {number} [tilePixelRatio=1] The pixel ratio used by the tile service. For example, if the tile
+ * service advertizes 256px by 256px tiles but actually sends 512px
+ * by 512px images (for retina/hidpi devices) then `tilePixelRatio`
+ * should be set to `2`.
+ * @property {import("../Tile.js").UrlFunction} [tileUrlFunction] Optional function to get tile URL given a tile coordinate and the projection.
+ * @property {string} [url] URL template. Must include `{x}`, `{y}` or `{-y}`, and `{z}` placeholders.
+ * A `{?-?}` template pattern, for example `subdomain{a-f}.domain.com`, may be
+ * used instead of defining each one separately in the `urls` option.
+ * @property {Array<string>} [urls] An array of URL templates.
+ * @property {boolean} [wrapX] Whether to wrap the world horizontally. The default, is to
+ * request out-of-bounds tiles from the server. When set to `false`, only one
+ * world will be rendered. When set to `true`, tiles will be requested for one
+ * world only, but they will be wrapped horizontally to render multiple worlds.
+ * @property {number} [transition] Duration of the opacity transition for rendering.
+ * To disable the opacity transition, pass `transition: 0`.
+ * @property {string} [key] Optional tile key for proper cache fetching
+ * @property {number} [zDirection=0] Indicate which resolution should be used
+ * by a renderer if the view resolution does not match any resolution of the tile source.
+ * If 0, the nearest resolution will be used. If 1, the nearest lower resolution
+ * will be used. If -1, the nearest higher resolution will be used.
+ */
+
+/**
+ * @classdesc
+ * Base class for sources providing images divided into a tile grid.
+ *
+ * @fires import("./Tile.js").TileSourceEvent
+ * @api
+ */
+var TileImage =
+/** @class */
+function (_super) {
+ __extends(TileImage, _super);
+ /**
+ * @param {!Options} options Image tile options.
+ */
+
+
+ function TileImage(options) {
+ var _this = _super.call(this, {
+ attributions: options.attributions,
+ cacheSize: options.cacheSize,
+ opaque: options.opaque,
+ projection: options.projection,
+ state: options.state,
+ tileGrid: options.tileGrid,
+ tileLoadFunction: options.tileLoadFunction ? options.tileLoadFunction : defaultTileLoadFunction,
+ tilePixelRatio: options.tilePixelRatio,
+ tileUrlFunction: options.tileUrlFunction,
+ url: options.url,
+ urls: options.urls,
+ wrapX: options.wrapX,
+ transition: options.transition,
+ key: options.key,
+ attributionsCollapsible: options.attributionsCollapsible,
+ zDirection: options.zDirection
+ }) || this;
+ /**
+ * @protected
+ * @type {?string}
+ */
+
+
+ _this.crossOrigin = options.crossOrigin !== undefined ? options.crossOrigin : null;
+ /**
+ * @protected
+ * @type {typeof ImageTile}
+ */
+
+ _this.tileClass = options.tileClass !== undefined ? options.tileClass : _ImageTile.default;
+ /**
+ * @protected
+ * @type {!Object<string, TileCache>}
+ */
+
+ _this.tileCacheForProjection = {};
+ /**
+ * @protected
+ * @type {!Object<string, import("../tilegrid/TileGrid.js").default>}
+ */
+
+ _this.tileGridForProjection = {};
+ /**
+ * @private
+ * @type {number|undefined}
+ */
+
+ _this.reprojectionErrorThreshold_ = options.reprojectionErrorThreshold;
+ /**
+ * @private
+ * @type {object|undefined}
+ */
+
+ _this.contextOptions_ = options.imageSmoothing === false ? _common2.IMAGE_SMOOTHING_DISABLED : undefined;
+ /**
+ * @private
+ * @type {boolean}
+ */
+
+ _this.renderReprojectionEdges_ = false;
+ return _this;
+ }
+ /**
+ * @return {boolean} Can expire cache.
+ */
+
+
+ TileImage.prototype.canExpireCache = function () {
+ if (!_common.ENABLE_RASTER_REPROJECTION) {
+ return _super.prototype.canExpireCache.call(this);
+ }
+
+ if (this.tileCache.canExpireCache()) {
+ return true;
+ } else {
+ for (var key in this.tileCacheForProjection) {
+ if (this.tileCacheForProjection[key].canExpireCache()) {
+ return true;
+ }
+ }
+ }
+
+ return false;
+ };
+ /**
+ * @param {import("../proj/Projection.js").default} projection Projection.
+ * @param {!Object<string, boolean>} usedTiles Used tiles.
+ */
+
+
+ TileImage.prototype.expireCache = function (projection, usedTiles) {
+ if (!_common.ENABLE_RASTER_REPROJECTION) {
+ _super.prototype.expireCache.call(this, projection, usedTiles);
+
+ return;
+ }
+
+ var usedTileCache = this.getTileCacheForProjection(projection);
+ this.tileCache.expireCache(this.tileCache == usedTileCache ? usedTiles : {});
+
+ for (var id in this.tileCacheForProjection) {
+ var tileCache = this.tileCacheForProjection[id];
+ tileCache.expireCache(tileCache == usedTileCache ? usedTiles : {});
+ }
+ };
+ /**
+ * @return {Object|undefined} Context options.
+ */
+
+
+ TileImage.prototype.getContextOptions = function () {
+ return this.contextOptions_;
+ };
+ /**
+ * @param {import("../proj/Projection.js").default} projection Projection.
+ * @return {number} Gutter.
+ */
+
+
+ TileImage.prototype.getGutterForProjection = function (projection) {
+ if (_common.ENABLE_RASTER_REPROJECTION && this.getProjection() && projection && !(0, _proj.equivalent)(this.getProjection(), projection)) {
+ return 0;
+ } else {
+ return this.getGutter();
+ }
+ };
+ /**
+ * @return {number} Gutter.
+ */
+
+
+ TileImage.prototype.getGutter = function () {
+ return 0;
+ };
+ /**
+ * Return the key to be used for all tiles in the source.
+ * @return {string} The key for all tiles.
+ * @protected
+ */
+
+
+ TileImage.prototype.getKey = function () {
+ return _super.prototype.getKey.call(this) + (this.contextOptions_ ? '\n' + JSON.stringify(this.contextOptions_) : '');
+ };
+ /**
+ * @param {import("../proj/Projection.js").default} projection Projection.
+ * @return {boolean} Opaque.
+ */
+
+
+ TileImage.prototype.getOpaque = function (projection) {
+ if (_common.ENABLE_RASTER_REPROJECTION && this.getProjection() && projection && !(0, _proj.equivalent)(this.getProjection(), projection)) {
+ return false;
+ } else {
+ return _super.prototype.getOpaque.call(this, projection);
+ }
+ };
+ /**
+ * @param {import("../proj/Projection.js").default} projection Projection.
+ * @return {!import("../tilegrid/TileGrid.js").default} Tile grid.
+ */
+
+
+ TileImage.prototype.getTileGridForProjection = function (projection) {
+ if (!_common.ENABLE_RASTER_REPROJECTION) {
+ return _super.prototype.getTileGridForProjection.call(this, projection);
+ }
+
+ var thisProj = this.getProjection();
+
+ if (this.tileGrid && (!thisProj || (0, _proj.equivalent)(thisProj, projection))) {
+ return this.tileGrid;
+ } else {
+ var projKey = (0, _util.getUid)(projection);
+
+ if (!(projKey in this.tileGridForProjection)) {
+ this.tileGridForProjection[projKey] = (0, _tilegrid.getForProjection)(projection);
+ }
+
+ return this.tileGridForProjection[projKey];
+ }
+ };
+ /**
+ * @param {import("../proj/Projection.js").default} projection Projection.
+ * @return {import("../TileCache.js").default} Tile cache.
+ */
+
+
+ TileImage.prototype.getTileCacheForProjection = function (projection) {
+ if (!_common.ENABLE_RASTER_REPROJECTION) {
+ return _super.prototype.getTileCacheForProjection.call(this, projection);
+ }
+
+ var thisProj = this.getProjection();
+
+ if (!thisProj || (0, _proj.equivalent)(thisProj, projection)) {
+ return this.tileCache;
+ } else {
+ var projKey = (0, _util.getUid)(projection);
+
+ if (!(projKey in this.tileCacheForProjection)) {
+ this.tileCacheForProjection[projKey] = new _TileCache.default(this.tileCache.highWaterMark);
+ }
+
+ return this.tileCacheForProjection[projKey];
+ }
+ };
+ /**
+ * @param {number} z Tile coordinate z.
+ * @param {number} x Tile coordinate x.
+ * @param {number} y Tile coordinate y.
+ * @param {number} pixelRatio Pixel ratio.
+ * @param {import("../proj/Projection.js").default} projection Projection.
+ * @param {string} key The key set on the tile.
+ * @return {!import("../Tile.js").default} Tile.
+ * @private
+ */
+
+
+ TileImage.prototype.createTile_ = function (z, x, y, pixelRatio, projection, key) {
+ var tileCoord = [z, x, y];
+ var urlTileCoord = this.getTileCoordForTileUrlFunction(tileCoord, projection);
+ var tileUrl = urlTileCoord ? this.tileUrlFunction(urlTileCoord, pixelRatio, projection) : undefined;
+ var tile = new this.tileClass(tileCoord, tileUrl !== undefined ? _TileState.default.IDLE : _TileState.default.EMPTY, tileUrl !== undefined ? tileUrl : '', this.crossOrigin, this.tileLoadFunction, this.tileOptions);
+ tile.key = key;
+ tile.addEventListener(_EventType.default.CHANGE, this.handleTileChange.bind(this));
+ return tile;
+ };
+ /**
+ * @param {number} z Tile coordinate z.
+ * @param {number} x Tile coordinate x.
+ * @param {number} y Tile coordinate y.
+ * @param {number} pixelRatio Pixel ratio.
+ * @param {import("../proj/Projection.js").default} projection Projection.
+ * @return {!import("../Tile.js").default} Tile.
+ */
+
+
+ TileImage.prototype.getTile = function (z, x, y, pixelRatio, projection) {
+ var sourceProjection = this.getProjection();
+
+ if (!_common.ENABLE_RASTER_REPROJECTION || !sourceProjection || !projection || (0, _proj.equivalent)(sourceProjection, projection)) {
+ return this.getTileInternal(z, x, y, pixelRatio, sourceProjection || projection);
+ } else {
+ var cache = this.getTileCacheForProjection(projection);
+ var tileCoord = [z, x, y];
+ var tile = void 0;
+ var tileCoordKey = (0, _tilecoord.getKey)(tileCoord);
+
+ if (cache.containsKey(tileCoordKey)) {
+ tile = cache.get(tileCoordKey);
+ }
+
+ var key = this.getKey();
+
+ if (tile && tile.key == key) {
+ return tile;
+ } else {
+ var sourceTileGrid = this.getTileGridForProjection(sourceProjection);
+ var targetTileGrid = this.getTileGridForProjection(projection);
+ var wrappedTileCoord = this.getTileCoordForTileUrlFunction(tileCoord, projection);
+ var newTile = new _Tile.default(sourceProjection, sourceTileGrid, projection, targetTileGrid, tileCoord, wrappedTileCoord, this.getTilePixelRatio(pixelRatio), this.getGutter(), function (z, x, y, pixelRatio) {
+ return this.getTileInternal(z, x, y, pixelRatio, sourceProjection);
+ }.bind(this), this.reprojectionErrorThreshold_, this.renderReprojectionEdges_, this.contextOptions_);
+ newTile.key = key;
+
+ if (tile) {
+ newTile.interimTile = tile;
+ newTile.refreshInterimChain();
+ cache.replace(tileCoordKey, newTile);
+ } else {
+ cache.set(tileCoordKey, newTile);
+ }
+
+ return newTile;
+ }
+ }
+ };
+ /**
+ * @param {number} z Tile coordinate z.
+ * @param {number} x Tile coordinate x.
+ * @param {number} y Tile coordinate y.
+ * @param {number} pixelRatio Pixel ratio.
+ * @param {!import("../proj/Projection.js").default} projection Projection.
+ * @return {!import("../Tile.js").default} Tile.
+ * @protected
+ */
+
+
+ TileImage.prototype.getTileInternal = function (z, x, y, pixelRatio, projection) {
+ var tile = null;
+ var tileCoordKey = (0, _tilecoord.getKeyZXY)(z, x, y);
+ var key = this.getKey();
+
+ if (!this.tileCache.containsKey(tileCoordKey)) {
+ tile = this.createTile_(z, x, y, pixelRatio, projection, key);
+ this.tileCache.set(tileCoordKey, tile);
+ } else {
+ tile = this.tileCache.get(tileCoordKey);
+
+ if (tile.key != key) {
+ // The source's params changed. If the tile has an interim tile and if we
+ // can use it then we use it. Otherwise we create a new tile. In both
+ // cases we attempt to assign an interim tile to the new tile.
+ var interimTile = tile;
+ tile = this.createTile_(z, x, y, pixelRatio, projection, key); //make the new tile the head of the list,
+
+ if (interimTile.getState() == _TileState.default.IDLE) {
+ //the old tile hasn't begun loading yet, and is now outdated, so we can simply discard it
+ tile.interimTile = interimTile.interimTile;
+ } else {
+ tile.interimTile = interimTile;
+ }
+
+ tile.refreshInterimChain();
+ this.tileCache.replace(tileCoordKey, tile);
+ }
+ }
+
+ return tile;
+ };
+ /**
+ * Sets whether to render reprojection edges or not (usually for debugging).
+ * @param {boolean} render Render the edges.
+ * @api
+ */
+
+
+ TileImage.prototype.setRenderReprojectionEdges = function (render) {
+ if (!_common.ENABLE_RASTER_REPROJECTION || this.renderReprojectionEdges_ == render) {
+ return;
+ }
+
+ this.renderReprojectionEdges_ = render;
+
+ for (var id in this.tileCacheForProjection) {
+ this.tileCacheForProjection[id].clear();
+ }
+
+ this.changed();
+ };
+ /**
+ * Sets the tile grid to use when reprojecting the tiles to the given
+ * projection instead of the default tile grid for the projection.
+ *
+ * This can be useful when the default tile grid cannot be created
+ * (e.g. projection has no extent defined) or
+ * for optimization reasons (custom tile size, resolutions, ...).
+ *
+ * @param {import("../proj.js").ProjectionLike} projection Projection.
+ * @param {import("../tilegrid/TileGrid.js").default} tilegrid Tile grid to use for the projection.
+ * @api
+ */
+
+
+ TileImage.prototype.setTileGridForProjection = function (projection, tilegrid) {
+ if (_common.ENABLE_RASTER_REPROJECTION) {
+ var proj = (0, _proj.get)(projection);
+
+ if (proj) {
+ var projKey = (0, _util.getUid)(proj);
+
+ if (!(projKey in this.tileGridForProjection)) {
+ this.tileGridForProjection[projKey] = tilegrid;
+ }
+ }
+ }
+ };
+
+ return TileImage;
+}(_UrlTile.default);
+/**
+ * @param {ImageTile} imageTile Image tile.
+ * @param {string} src Source.
+ */
+
+
+function defaultTileLoadFunction(imageTile, src) {
+ /** @type {HTMLImageElement|HTMLVideoElement} */
+ imageTile.getImage().src = src;
+}
+
+var _default = TileImage;
+exports.default = _default;
+},{"../events/EventType.js":"../../../node_modules/ol/events/EventType.js","../ImageTile.js":"../../../node_modules/ol/ImageTile.js","../reproj/Tile.js":"../../../node_modules/ol/reproj/Tile.js","../TileCache.js":"../../../node_modules/ol/TileCache.js","../TileState.js":"../../../node_modules/ol/TileState.js","./UrlTile.js":"../../../node_modules/ol/source/UrlTile.js","../reproj/common.js":"../../../node_modules/ol/reproj/common.js","./common.js":"../../../node_modules/ol/source/common.js","../proj.js":"../../../node_modules/ol/proj.js","../tilecoord.js":"../../../node_modules/ol/tilecoord.js","../tilegrid.js":"../../../node_modules/ol/tilegrid.js","../util.js":"../../../node_modules/ol/util.js"}],"../../../node_modules/ol/source/XYZ.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _TileImage = _interopRequireDefault(require("./TileImage.js"));
+
+var _tilegrid = require("../tilegrid.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module ol/source/XYZ
+ */
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+
+/**
+ * @typedef {Object} Options
+ * @property {import("./Source.js").AttributionLike} [attributions] Attributions.
+ * @property {boolean} [attributionsCollapsible=true] Attributions are collapsible.
+ * @property {number} [cacheSize] Initial tile cache size. Will auto-grow to hold at least the number of tiles in the viewport.
+ * @property {null|string} [crossOrigin] The `crossOrigin` attribute for loaded images. Note that
+ * you must provide a `crossOrigin` value if you want to access pixel data with the Canvas renderer.
+ * See https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_enabled_image for more detail.
+ * @property {boolean} [imageSmoothing=true] Enable image smoothing.
+ * @property {boolean} [opaque=false] Whether the layer is opaque.
+ * @property {import("../proj.js").ProjectionLike} [projection='EPSG:3857'] Projection.
+ * @property {number} [reprojectionErrorThreshold=0.5] Maximum allowed reprojection error (in pixels).
+ * Higher values can increase reprojection performance, but decrease precision.
+ * @property {number} [maxZoom=42] Optional max zoom level. Not used if `tileGrid` is provided.
+ * @property {number} [minZoom=0] Optional min zoom level. Not used if `tileGrid` is provided.
+ * @property {number} [maxResolution] Optional tile grid resolution at level zero. Not used if `tileGrid` is provided.
+ * @property {import("../tilegrid/TileGrid.js").default} [tileGrid] Tile grid.
+ * @property {import("../Tile.js").LoadFunction} [tileLoadFunction] Optional function to load a tile given a URL. The default is
+ * ```js
+ * function(imageTile, src) {
+ * imageTile.getImage().src = src;
+ * };
+ * ```
+ * @property {number} [tilePixelRatio=1] The pixel ratio used by the tile service.
+ * For example, if the tile service advertizes 256px by 256px tiles but actually sends 512px
+ * by 512px images (for retina/hidpi devices) then `tilePixelRatio`
+ * should be set to `2`.
+ * @property {number|import("../size.js").Size} [tileSize=[256, 256]] The tile size used by the tile service.
+ * Not used if `tileGrid` is provided.
+ * @property {import("../Tile.js").UrlFunction} [tileUrlFunction] Optional function to get
+ * tile URL given a tile coordinate and the projection.
+ * Required if `url` or `urls` are not provided.
+ * @property {string} [url] URL template. Must include `{x}`, `{y}` or `{-y}`,
+ * and `{z}` placeholders. A `{?-?}` template pattern, for example `subdomain{a-f}.domain.com`,
+ * may be used instead of defining each one separately in the `urls` option.
+ * @property {Array<string>} [urls] An array of URL templates.
+ * @property {boolean} [wrapX=true] Whether to wrap the world horizontally.
+ * @property {number} [transition] Duration of the opacity transition for rendering.
+ * To disable the opacity transition, pass `transition: 0`.
+ * @property {number} [zDirection=0] Indicate which resolution should be used
+ * by a renderer if the view resolution does not match any resolution of the tile source.
+ * If 0, the nearest resolution will be used. If 1, the nearest lower resolution
+ * will be used. If -1, the nearest higher resolution will be used.
+ */
+
+/**
+ * @classdesc
+ * Layer source for tile data with URLs in a set XYZ format that are
+ * defined in a URL template. By default, this follows the widely-used
+ * Google grid where `x` 0 and `y` 0 are in the top left. Grids like
+ * TMS where `x` 0 and `y` 0 are in the bottom left can be used by
+ * using the `{-y}` placeholder in the URL template, so long as the
+ * source does not have a custom tile grid. In this case,
+ * {@link module:ol/source/TileImage} can be used with a `tileUrlFunction`
+ * such as:
+ *
+ * tileUrlFunction: function(coordinate) {
+ * return 'http://mapserver.com/' + coordinate[0] + '/' +
+ * coordinate[1] + '/' + coordinate[2] + '.png';
+ * }
+ *
+ * @api
+ */
+var XYZ =
+/** @class */
+function (_super) {
+ __extends(XYZ, _super);
+ /**
+ * @param {Options=} opt_options XYZ options.
+ */
+
+
+ function XYZ(opt_options) {
+ var _this = this;
+
+ var options = opt_options || {};
+ var projection = options.projection !== undefined ? options.projection : 'EPSG:3857';
+ var tileGrid = options.tileGrid !== undefined ? options.tileGrid : (0, _tilegrid.createXYZ)({
+ extent: (0, _tilegrid.extentFromProjection)(projection),
+ maxResolution: options.maxResolution,
+ maxZoom: options.maxZoom,
+ minZoom: options.minZoom,
+ tileSize: options.tileSize
+ });
+ _this = _super.call(this, {
+ attributions: options.attributions,
+ cacheSize: options.cacheSize,
+ crossOrigin: options.crossOrigin,
+ imageSmoothing: options.imageSmoothing,
+ opaque: options.opaque,
+ projection: projection,
+ reprojectionErrorThreshold: options.reprojectionErrorThreshold,
+ tileGrid: tileGrid,
+ tileLoadFunction: options.tileLoadFunction,
+ tilePixelRatio: options.tilePixelRatio,
+ tileUrlFunction: options.tileUrlFunction,
+ url: options.url,
+ urls: options.urls,
+ wrapX: options.wrapX !== undefined ? options.wrapX : true,
+ transition: options.transition,
+ attributionsCollapsible: options.attributionsCollapsible,
+ zDirection: options.zDirection
+ }) || this;
+ return _this;
+ }
+
+ return XYZ;
+}(_TileImage.default);
+
+var _default = XYZ;
+exports.default = _default;
+},{"./TileImage.js":"../../../node_modules/ol/source/TileImage.js","../tilegrid.js":"../../../node_modules/ol/tilegrid.js"}],"../../../node_modules/ol/source/OSM.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = exports.ATTRIBUTION = void 0;
+
+var _XYZ = _interopRequireDefault(require("./XYZ.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module ol/source/OSM
+ */
+var __extends = void 0 && (void 0).__extends || function () {
+ var extendStatics = function (d, b) {
+ extendStatics = Object.setPrototypeOf || {
+ __proto__: []
+ } instanceof Array && function (d, b) {
+ d.__proto__ = b;
+ } || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ };
+
+ return extendStatics(d, b);
+ };
+
+ return function (d, b) {
+ extendStatics(d, b);
+
+ function __() {
+ this.constructor = d;
+ }
+
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+ };
+}();
+
+/**
+ * The attribution containing a link to the OpenStreetMap Copyright and License
+ * page.
+ * @const
+ * @type {string}
+ * @api
+ */
+var ATTRIBUTION = '© ' + '<a href="https://www.openstreetmap.org/copyright" target="_blank">OpenStreetMap</a> ' + 'contributors.';
+/**
+ * @typedef {Object} Options
+ * @property {import("./Source.js").AttributionLike} [attributions] Attributions.
+ * @property {number} [cacheSize] Initial tile cache size. Will auto-grow to hold at least the number of tiles in the viewport.
+ * @property {null|string} [crossOrigin='anonymous'] The `crossOrigin` attribute for loaded images. Note that
+ * you must provide a `crossOrigin` value if you want to access pixel data with the Canvas renderer.
+ * See https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_enabled_image for more detail.
+ * @property {boolean} [imageSmoothing=true] Enable image smoothing.
+ * @property {number} [maxZoom=19] Max zoom.
+ * @property {boolean} [opaque=true] Whether the layer is opaque.
+ * @property {number} [reprojectionErrorThreshold=0.5] Maximum allowed reprojection error (in pixels).
+ * Higher values can increase reprojection performance, but decrease precision.
+ * @property {import("../Tile.js").LoadFunction} [tileLoadFunction] Optional function to load a tile given a URL. The default is
+ * ```js
+ * function(imageTile, src) {
+ * imageTile.getImage().src = src;
+ * };
+ * ```
+ * @property {string} [url='https://{a-c}.tile.openstreetmap.org/{z}/{x}/{y}.png'] URL template.
+ * Must include `{x}`, `{y}` or `{-y}`, and `{z}` placeholders.
+ * @property {boolean} [wrapX=true] Whether to wrap the world horizontally.
+ */
+
+/**
+ * @classdesc
+ * Layer source for the OpenStreetMap tile server.
+ * @api
+ */
+
+exports.ATTRIBUTION = ATTRIBUTION;
+
+var OSM =
+/** @class */
+function (_super) {
+ __extends(OSM, _super);
+ /**
+ * @param {Options=} [opt_options] Open Street Map options.
+ */
+
+
+ function OSM(opt_options) {
+ var _this = this;
+
+ var options = opt_options || {};
+ var attributions;
+
+ if (options.attributions !== undefined) {
+ attributions = options.attributions;
+ } else {
+ attributions = [ATTRIBUTION];
+ }
+
+ var crossOrigin = options.crossOrigin !== undefined ? options.crossOrigin : 'anonymous';
+ var url = options.url !== undefined ? options.url : 'https://{a-c}.tile.openstreetmap.org/{z}/{x}/{y}.png';
+ _this = _super.call(this, {
+ attributions: attributions,
+ cacheSize: options.cacheSize,
+ crossOrigin: crossOrigin,
+ imageSmoothing: options.imageSmoothing,
+ opaque: options.opaque !== undefined ? options.opaque : true,
+ maxZoom: options.maxZoom !== undefined ? options.maxZoom : 19,
+ reprojectionErrorThreshold: options.reprojectionErrorThreshold,
+ tileLoadFunction: options.tileLoadFunction,
+ url: url,
+ wrapX: options.wrapX,
+ attributionsCollapsible: false
+ }) || this;
+ return _this;
+ }
+
+ return OSM;
+}(_XYZ.default);
+
+var _default = OSM;
+exports.default = _default;
+},{"./XYZ.js":"../../../node_modules/ol/source/XYZ.js"}],"map.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.viewMap = viewMap;
+
+require("ol/ol.css");
+
+var _ol2 = require("ol");
+
+var _Feature = _interopRequireDefault(require("ol/Feature"));
+
+var _Point = _interopRequireDefault(require("ol/geom/Point"));
+
+var _style = require("ol/style");
+
+var _Tile = _interopRequireDefault(require("ol/layer/Tile"));
+
+var _OSM = _interopRequireDefault(require("ol/source/OSM"));
+
+var _proj = require("ol/proj");
+
+var _Vector = _interopRequireDefault(require("ol/layer/Vector"));
+
+var _Vector2 = _interopRequireDefault(require("ol/source/Vector"));
+
+var _Layer = _interopRequireDefault(require("ol/layer/Layer"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/* When the user clicks on the button,
+toggle between hiding and showing the dropdown content */
+$('.ui.dropdown').dropdown();
+
+function viewMap(center, users) {
+ var longLat = [center.long, center.lat];
+ var WebMercator = (0, _proj.fromLonLat)(longLat);
+ var features = users.map(function (_ref) {
+ var location = _ref.location;
+
+ if (!location) {
+ return;
+ }
+
+ var longitude = location.longitude,
+ latitude = location.latitude;
+
+ if (!longitude || !latitude) {
+ return;
+ }
+
+ var marker = new _Feature.default({
+ geometry: new _Point.default((0, _proj.fromLonLat)([longitude, latitude])),
+ name: "[".concat(longitude, ",").concat(latitude, "]")
+ });
+ marker.setStyle(new _style.Style({
+ image: new _style.Circle({
+ fill: new _style.Fill({
+ color: '#ff0000'
+ }),
+ stroke: new _style.Stroke({
+ color: '#000000',
+ width: 1
+ }),
+ radius: 5
+ })
+ }));
+ return marker;
+ });
+ var tileLayer = new _Tile.default({
+ source: new _OSM.default()
+ });
+ var vectorLayer = new _Vector.default({
+ source: new _Vector2.default({
+ features: features.filter(function (f) {
+ return f;
+ })
+ })
+ });
+ var map = new _ol2.Map({
+ target: 'map',
+ layers: [tileLayer, vectorLayer],
+ view: new _ol2.View({
+ center: WebMercator,
+ zoom: 13
+ })
+ });
+}
+},{"ol/ol.css":"../../../node_modules/ol/ol.css","ol":"../../../node_modules/ol/index.js","ol/Feature":"../../../node_modules/ol/Feature.js","ol/geom/Point":"../../../node_modules/ol/geom/Point.js","ol/style":"../../../node_modules/ol/style.js","ol/layer/Tile":"../../../node_modules/ol/layer/Tile.js","ol/source/OSM":"../../../node_modules/ol/source/OSM.js","ol/proj":"../../../node_modules/ol/proj.js","ol/layer/Vector":"../../../node_modules/ol/layer/Vector.js","ol/source/Vector":"../../../node_modules/ol/source/Vector.js","ol/layer/Layer":"../../../node_modules/ol/layer/Layer.js"}],"../../../node_modules/parcel-bundler/src/builtins/hmr-runtime.js":[function(require,module,exports) {
+var global = arguments[3];
+var OVERLAY_ID = '__parcel__error__overlay__';
+var OldModule = module.bundle.Module;
+
+function Module(moduleName) {
+ OldModule.call(this, moduleName);
+ this.hot = {
+ data: module.bundle.hotData,
+ _acceptCallbacks: [],
+ _disposeCallbacks: [],
+ accept: function (fn) {
+ this._acceptCallbacks.push(fn || function () {});
+ },
+ dispose: function (fn) {
+ this._disposeCallbacks.push(fn);
+ }
+ };
+ module.bundle.hotData = null;
+}
+
+module.bundle.Module = Module;
+var checkedAssets, assetsToAccept;
+var parent = module.bundle.parent;
+
+if ((!parent || !parent.isParcelRequire) && typeof WebSocket !== 'undefined') {
+ var hostname = "" || location.hostname;
+ var protocol = location.protocol === 'https:' ? 'wss' : 'ws';
+ var ws = new WebSocket(protocol + '://' + hostname + ':' + "37695" + '/');
+
+ ws.onmessage = function (event) {
+ checkedAssets = {};
+ assetsToAccept = [];
+ var data = JSON.parse(event.data);
+
+ if (data.type === 'update') {
+ var handled = false;
+ data.assets.forEach(function (asset) {
+ if (!asset.isNew) {
+ var didAccept = hmrAcceptCheck(global.parcelRequire, asset.id);
+
+ if (didAccept) {
+ handled = true;
+ }
+ }
+ }); // Enable HMR for CSS by default.
+
+ handled = handled || data.assets.every(function (asset) {
+ return asset.type === 'css' && asset.generated.js;
+ });
+
+ if (handled) {
+ console.clear();
+ data.assets.forEach(function (asset) {
+ hmrApply(global.parcelRequire, asset);
+ });
+ assetsToAccept.forEach(function (v) {
+ hmrAcceptRun(v[0], v[1]);
+ });
+ } else if (location.reload) {
+ // `location` global exists in a web worker context but lacks `.reload()` function.
+ location.reload();
+ }
+ }
+
+ if (data.type === 'reload') {
+ ws.close();
+
+ ws.onclose = function () {
+ location.reload();
+ };
+ }
+
+ if (data.type === 'error-resolved') {
+ console.log('[parcel] ✨ Error resolved');
+ removeErrorOverlay();
+ }
+
+ if (data.type === 'error') {
+ console.error('[parcel] 🚨 ' + data.error.message + '\n' + data.error.stack);
+ removeErrorOverlay();
+ var overlay = createErrorOverlay(data);
+ document.body.appendChild(overlay);
+ }
+ };
+}
+
+function removeErrorOverlay() {
+ var overlay = document.getElementById(OVERLAY_ID);
+
+ if (overlay) {
+ overlay.remove();
+ }
+}
+
+function createErrorOverlay(data) {
+ var overlay = document.createElement('div');
+ overlay.id = OVERLAY_ID; // html encode message and stack trace
+
+ var message = document.createElement('div');
+ var stackTrace = document.createElement('pre');
+ message.innerText = data.error.message;
+ stackTrace.innerText = data.error.stack;
+ overlay.innerHTML = '<div style="background: black; font-size: 16px; color: white; position: fixed; height: 100%; width: 100%; top: 0px; left: 0px; padding: 30px; opacity: 0.85; font-family: Menlo, Consolas, monospace; z-index: 9999;">' + '<span style="background: red; padding: 2px 4px; border-radius: 2px;">ERROR</span>' + '<span style="top: 2px; margin-left: 5px; position: relative;">🚨</span>' + '<div style="font-size: 18px; font-weight: bold; margin-top: 20px;">' + message.innerHTML + '</div>' + '<pre>' + stackTrace.innerHTML + '</pre>' + '</div>';
+ return overlay;
+}
+
+function getParents(bundle, id) {
+ var modules = bundle.modules;
+
+ if (!modules) {
+ return [];
+ }
+
+ var parents = [];
+ var k, d, dep;
+
+ for (k in modules) {
+ for (d in modules[k][1]) {
+ dep = modules[k][1][d];
+
+ if (dep === id || Array.isArray(dep) && dep[dep.length - 1] === id) {
+ parents.push(k);
+ }
+ }
+ }
+
+ if (bundle.parent) {
+ parents = parents.concat(getParents(bundle.parent, id));
+ }
+
+ return parents;
+}
+
+function hmrApply(bundle, asset) {
+ var modules = bundle.modules;
+
+ if (!modules) {
+ return;
+ }
+
+ if (modules[asset.id] || !bundle.parent) {
+ var fn = new Function('require', 'module', 'exports', asset.generated.js);
+ asset.isNew = !modules[asset.id];
+ modules[asset.id] = [fn, asset.deps];
+ } else if (bundle.parent) {
+ hmrApply(bundle.parent, asset);
+ }
+}
+
+function hmrAcceptCheck(bundle, id) {
+ var modules = bundle.modules;
+
+ if (!modules) {
+ return;
+ }
+
+ if (!modules[id] && bundle.parent) {
+ return hmrAcceptCheck(bundle.parent, id);
+ }
+
+ if (checkedAssets[id]) {
+ return;
+ }
+
+ checkedAssets[id] = true;
+ var cached = bundle.cache[id];
+ assetsToAccept.push([bundle, id]);
+
+ if (cached && cached.hot && cached.hot._acceptCallbacks.length) {
+ return true;
+ }
+
+ return getParents(global.parcelRequire, id).some(function (id) {
+ return hmrAcceptCheck(global.parcelRequire, id);
+ });
+}
+
+function hmrAcceptRun(bundle, id) {
+ var cached = bundle.cache[id];
+ bundle.hotData = {};
+
+ if (cached) {
+ cached.hot.data = bundle.hotData;
+ }
+
+ if (cached && cached.hot && cached.hot._disposeCallbacks.length) {
+ cached.hot._disposeCallbacks.forEach(function (cb) {
+ cb(bundle.hotData);
+ });
+ }
+
+ delete bundle.cache[id];
+ bundle(id);
+ cached = bundle.cache[id];
+
+ if (cached && cached.hot && cached.hot._acceptCallbacks.length) {
+ cached.hot._acceptCallbacks.forEach(function (cb) {
+ cb();
+ });
+
+ return true;
+ }
+}
+},{}]},{},["../../../node_modules/parcel-bundler/src/builtins/hmr-runtime.js","map.js"], null)
+//# sourceMappingURL=/map.js.map
\ No newline at end of file
diff --git a/public/assets/dist/map.js.map b/public/assets/dist/map.js.map
new file mode 100644
index 0000000000000000000000000000000000000000..5c9194425cdbf5494d6393c7f8a5d35dbc91841f
--- /dev/null
+++ b/public/assets/dist/map.js.map
@@ -0,0 +1 @@
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* @module ol/util\n */\n\n/**\n * @return {?} Any return.\n */\nexport function abstract() {\n return /** @type {?} */ ((function () {\n throw new Error('Unimplemented abstract method.');\n })());\n}\n\n/**\n * Counter for getUid.\n * @type {number}\n * @private\n */\nlet uidCounter_ = 0;\n\n/**\n * Gets a unique ID for an object. This mutates the object so that further calls\n * with the same object as a parameter returns the same value. Unique IDs are generated\n * as a strictly increasing sequence. Adapted from goog.getUid.\n *\n * @param {Object} obj The object to get the unique ID for.\n * @return {string} The unique ID for the object.\n * @api\n */\nexport function getUid(obj) {\n return obj.ol_uid || (obj.ol_uid = String(++uidCounter_));\n}\n\n/**\n * OpenLayers version.\n * @type {string}\n */\nexport const VERSION = 'latest';\n","/**\n * @module ol/AssertionError\n */\nimport {VERSION} from './util.js';\n\n/**\n * Error object thrown when an assertion failed. This is an ECMA-262 Error,\n * extended with a `code` property.\n * See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error.\n */\nclass AssertionError extends Error {\n /**\n * @param {number} code Error code.\n */\n constructor(code) {\n const path = VERSION === 'latest' ? VERSION : 'v' + VERSION.split('-')[0];\n const message =\n 'Assertion failed. See https://openlayers.org/en/' +\n path +\n '/doc/errors/#' +\n code +\n ' for details.';\n\n super(message);\n\n /**\n * Error code. The meaning of the code can be found on\n * https://openlayers.org/en/latest/doc/errors/ (replace `latest` with\n * the version found in the OpenLayers script's header comment if a version\n * other than the latest is used).\n * @type {number}\n * @api\n */\n this.code = code;\n\n /**\n * @type {string}\n */\n this.name = 'AssertionError';\n\n // Re-assign message, see https://github.com/Rich-Harris/buble/issues/40\n this.message = message;\n }\n}\n\nexport default AssertionError;\n","/**\n * @module ol/events/Event\n */\n\n/**\n * @classdesc\n * Stripped down implementation of the W3C DOM Level 2 Event interface.\n * See https://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-interface.\n *\n * This implementation only provides `type` and `target` properties, and\n * `stopPropagation` and `preventDefault` methods. 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If it can't be found it'll return -1.\n * https://github.com/darkskyapp/binary-search\n *\n * @param {Array<*>} haystack Items to search through.\n * @param {*} needle The item to look for.\n * @param {Function=} opt_comparator Comparator function.\n * @return {number} The index of the item if found, -1 if not.\n */\nexport function binarySearch(haystack, needle, opt_comparator) {\n let mid, cmp;\n const comparator = opt_comparator || numberSafeCompareFunction;\n let low = 0;\n let high = haystack.length;\n let found = false;\n\n while (low < high) {\n /* Note that \"(low + high) >>> 1\" may overflow, and results in a typecast\n * to double (which gives the wrong results). */\n mid = low + ((high - low) >> 1);\n cmp = +comparator(haystack[mid], needle);\n\n if (cmp < 0.0) {\n /* Too low. */\n low = mid + 1;\n } else {\n /* Key found or too high */\n high = mid;\n found = !cmp;\n }\n }\n\n /* Key not found. */\n return found ? low : ~low;\n}\n\n/**\n * Compare function for array sort that is safe for numbers.\n * @param {*} a The first object to be compared.\n * @param {*} b The second object to be compared.\n * @return {number} A negative number, zero, or a positive number as the first\n * argument is less than, equal to, or greater than the second.\n */\nexport function numberSafeCompareFunction(a, b) {\n return a > b ? 1 : a < b ? -1 : 0;\n}\n\n/**\n * Whether the array contains the given object.\n * @param {Array<*>} arr The array to test for the presence of the element.\n * @param {*} obj The object for which to test.\n * @return {boolean} The object is in the array.\n */\nexport function includes(arr, obj) {\n return arr.indexOf(obj) >= 0;\n}\n\n/**\n * @param {Array<number>} arr Array.\n * @param {number} target Target.\n * @param {number} direction 0 means return the nearest, > 0\n * means return the largest nearest, < 0 means return the\n * smallest nearest.\n * @return {number} Index.\n */\nexport function linearFindNearest(arr, target, direction) {\n const n = arr.length;\n if (arr[0] <= target) {\n return 0;\n } else if (target <= arr[n - 1]) {\n return n - 1;\n } else {\n let i;\n if (direction > 0) {\n for (i = 1; i < n; ++i) {\n if (arr[i] < target) {\n return i - 1;\n }\n }\n } else if (direction < 0) {\n for (i = 1; i < n; ++i) {\n if (arr[i] <= target) {\n return i;\n }\n }\n } else {\n for (i = 1; i < n; ++i) {\n if (arr[i] == target) {\n return i;\n } else if (arr[i] < target) {\n if (arr[i - 1] - target < target - arr[i]) {\n return i - 1;\n } else {\n return i;\n }\n }\n }\n }\n return n - 1;\n }\n}\n\n/**\n * @param {Array<*>} arr Array.\n * @param {number} begin Begin index.\n * @param {number} end End index.\n */\nexport function reverseSubArray(arr, begin, end) {\n while (begin < end) {\n const tmp = arr[begin];\n arr[begin] = arr[end];\n arr[end] = tmp;\n ++begin;\n --end;\n }\n}\n\n/**\n * @param {Array<VALUE>} arr The array to modify.\n * @param {!Array<VALUE>|VALUE} data The elements or arrays of elements to add to arr.\n * @template VALUE\n */\nexport function extend(arr, data) {\n const extension = Array.isArray(data) ? data : [data];\n const length = extension.length;\n for (let i = 0; i < length; i++) {\n arr[arr.length] = extension[i];\n }\n}\n\n/**\n * @param {Array<VALUE>} arr The array to modify.\n * @param {VALUE} obj The element to remove.\n * @template VALUE\n * @return {boolean} If the element was removed.\n */\nexport function remove(arr, obj) {\n const i = arr.indexOf(obj);\n const found = i > -1;\n if (found) {\n arr.splice(i, 1);\n }\n return found;\n}\n\n/**\n * @param {Array<VALUE>} arr The array to search in.\n * @param {function(VALUE, number, ?) : boolean} func The function to compare.\n * @template VALUE\n * @return {VALUE|null} The element found or null.\n */\nexport function find(arr, func) {\n const length = arr.length >>> 0;\n let value;\n\n for (let i = 0; i < length; i++) {\n value = arr[i];\n if (func(value, i, arr)) {\n return value;\n }\n }\n return null;\n}\n\n/**\n * @param {Array|Uint8ClampedArray} arr1 The first array to compare.\n * @param {Array|Uint8ClampedArray} arr2 The second array to compare.\n * @return {boolean} Whether the two arrays are equal.\n */\nexport function equals(arr1, arr2) {\n const len1 = arr1.length;\n if (len1 !== arr2.length) {\n return false;\n }\n for (let i = 0; i < len1; i++) {\n if (arr1[i] !== arr2[i]) {\n return false;\n }\n }\n return true;\n}\n\n/**\n * Sort the passed array such that the relative order of equal elements is preverved.\n * See https://en.wikipedia.org/wiki/Sorting_algorithm#Stability for details.\n * @param {Array<*>} arr The array to sort (modifies original).\n * @param {!function(*, *): number} compareFnc Comparison function.\n * @api\n */\nexport function stableSort(arr, compareFnc) {\n const length = arr.length;\n const tmp = Array(arr.length);\n let i;\n for (i = 0; i < length; i++) {\n tmp[i] = {index: i, value: arr[i]};\n }\n tmp.sort(function (a, b) {\n return compareFnc(a.value, b.value) || a.index - b.index;\n });\n for (i = 0; i < arr.length; i++) {\n arr[i] = tmp[i].value;\n }\n}\n\n/**\n * @param {Array<*>} arr The array to search in.\n * @param {Function} func Comparison function.\n * @return {number} Return index.\n */\nexport function findIndex(arr, func) {\n let index;\n const found = !arr.every(function (el, idx) {\n index = idx;\n return !func(el, idx, arr);\n });\n return found ? index : -1;\n}\n\n/**\n * @param {Array<*>} arr The array to test.\n * @param {Function=} opt_func Comparison function.\n * @param {boolean=} opt_strict Strictly sorted (default false).\n * @return {boolean} Return index.\n */\nexport function isSorted(arr, opt_func, opt_strict) {\n const compare = opt_func || numberSafeCompareFunction;\n return arr.every(function (currentVal, index) {\n if (index === 0) {\n return true;\n }\n const res = compare(arr[index - 1], currentVal);\n return !(res > 0 || (opt_strict && res === 0));\n });\n}\n","/**\n * @module ol/functions\n */\n\nimport {equals as arrayEquals} from './array.js';\n\n/**\n * Always returns true.\n * @returns {boolean} true.\n */\nexport function TRUE() {\n return true;\n}\n\n/**\n * Always returns false.\n * @returns {boolean} false.\n */\nexport function FALSE() {\n return false;\n}\n\n/**\n * A reusable function, used e.g. as a default for callbacks.\n *\n * @return {void} Nothing.\n */\nexport function VOID() {}\n\n/**\n * Wrap a function in another function that remembers the last return. If the\n * returned function is called twice in a row with the same arguments and the same\n * this object, it will return the value from the first call in the second call.\n *\n * @param {function(...any): ReturnType} fn The function to memoize.\n * @return {function(...any): ReturnType} The memoized function.\n * @template ReturnType\n */\nexport function memoizeOne(fn) {\n let called = false;\n\n /** @type {ReturnType} */\n let lastResult;\n\n /** @type {Array<any>} */\n let lastArgs;\n\n let lastThis;\n\n return function () {\n const nextArgs = Array.prototype.slice.call(arguments);\n if (!called || this !== lastThis || !arrayEquals(nextArgs, lastArgs)) {\n called = true;\n lastThis = this;\n lastArgs = nextArgs;\n lastResult = fn.apply(this, arguments);\n }\n return lastResult;\n };\n}\n","/**\n * @module ol/obj\n */\n\n/**\n * Polyfill for Object.assign(). Assigns enumerable and own properties from\n * one or more source objects to a target object.\n * See https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Object/assign.\n *\n * @param {!Object} target The target object.\n * @param {...Object} var_sources The source object(s).\n * @return {!Object} The modified target object.\n */\nexport const assign =\n typeof Object.assign === 'function'\n ? Object.assign\n : function (target, var_sources) {\n if (target === undefined || target === null) {\n throw new TypeError('Cannot convert undefined or null to object');\n }\n\n const output = Object(target);\n for (let i = 1, ii = arguments.length; i < ii; ++i) {\n const source = arguments[i];\n if (source !== undefined && source !== null) {\n for (const key in source) {\n if (source.hasOwnProperty(key)) {\n output[key] = source[key];\n }\n }\n }\n }\n return output;\n };\n\n/**\n * Removes all properties from an object.\n * @param {Object} object The object to clear.\n */\nexport function clear(object) {\n for (const property in object) {\n delete object[property];\n }\n}\n\n/**\n * Polyfill for Object.values(). Get an array of property values from an object.\n * See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/values\n *\n * @param {!Object<K,V>} object The object from which to get the values.\n * @return {!Array<V>} The property values.\n * @template K,V\n */\nexport const getValues =\n typeof Object.values === 'function'\n ? Object.values\n : function (object) {\n const values = [];\n for (const property in object) {\n values.push(object[property]);\n }\n return values;\n };\n\n/**\n * Determine if an object has any properties.\n * @param {Object} object The object to check.\n * @return {boolean} The object is empty.\n */\nexport function isEmpty(object) {\n let property;\n for (property in object) {\n return false;\n }\n return !property;\n}\n","/**\n * @module ol/events/Target\n */\nimport Disposable from '../Disposable.js';\nimport Event from './Event.js';\nimport {VOID} from '../functions.js';\nimport {clear} from '../obj.js';\n\n/**\n * @typedef {EventTarget|Target} EventTargetLike\n */\n\n/**\n * @classdesc\n * A simplified implementation of the W3C DOM Level 2 EventTarget interface.\n * See https://www.w3.org/TR/2000/REC-DOM-Level-2-Events-20001113/events.html#Events-EventTarget.\n *\n * There are two important simplifications compared to the specification:\n *\n * 1. The handling of `useCapture` in `addEventListener` and\n * `removeEventListener`. There is no real capture model.\n * 2. The handling of `stopPropagation` and `preventDefault` on `dispatchEvent`.\n * There is no event target hierarchy. When a listener calls\n * `stopPropagation` or `preventDefault` on an event object, it means that no\n * more listeners after this one will be called. Same as when the listener\n * returns false.\n */\nclass Target extends Disposable {\n /**\n * @param {*=} opt_target Default event target for dispatched events.\n */\n constructor(opt_target) {\n super();\n\n /**\n * @private\n * @type {*}\n */\n this.eventTarget_ = opt_target;\n\n /**\n * @private\n * @type {Object<string, number>}\n */\n this.pendingRemovals_ = null;\n\n /**\n * @private\n * @type {Object<string, number>}\n */\n this.dispatching_ = null;\n\n /**\n * @private\n * @type {Object<string, Array<import(\"../events.js\").Listener>>}\n */\n this.listeners_ = null;\n }\n\n /**\n * @param {string} type Type.\n * @param {import(\"../events.js\").Listener} listener Listener.\n */\n addEventListener(type, listener) {\n if (!type || !listener) {\n return;\n }\n const listeners = this.listeners_ || (this.listeners_ = {});\n const listenersForType = listeners[type] || (listeners[type] = []);\n if (listenersForType.indexOf(listener) === -1) {\n listenersForType.push(listener);\n }\n }\n\n /**\n * Dispatches an event and calls all listeners listening for events\n * of this type. The event parameter can either be a string or an\n * Object with a `type` property.\n *\n * @param {import(\"./Event.js\").default|string} event Event object.\n * @return {boolean|undefined} `false` if anyone called preventDefault on the\n * event object or if any of the listeners returned false.\n * @api\n */\n dispatchEvent(event) {\n /** @type {import(\"./Event.js\").default|Event} */\n const evt = typeof event === 'string' ? new Event(event) : event;\n const type = evt.type;\n if (!evt.target) {\n evt.target = this.eventTarget_ || this;\n }\n const listeners = this.listeners_ && this.listeners_[type];\n let propagate;\n if (listeners) {\n const dispatching = this.dispatching_ || (this.dispatching_ = {});\n const pendingRemovals =\n this.pendingRemovals_ || (this.pendingRemovals_ = {});\n if (!(type in dispatching)) {\n dispatching[type] = 0;\n pendingRemovals[type] = 0;\n }\n ++dispatching[type];\n for (let i = 0, ii = listeners.length; i < ii; ++i) {\n if ('handleEvent' in listeners[i]) {\n propagate = /** @type {import(\"../events.js\").ListenerObject} */ (listeners[\n i\n ]).handleEvent(evt);\n } else {\n propagate = /** @type {import(\"../events.js\").ListenerFunction} */ (listeners[\n i\n ]).call(this, evt);\n }\n if (propagate === false || evt.propagationStopped) {\n propagate = false;\n break;\n }\n }\n --dispatching[type];\n if (dispatching[type] === 0) {\n let pr = pendingRemovals[type];\n delete pendingRemovals[type];\n while (pr--) {\n this.removeEventListener(type, VOID);\n }\n delete dispatching[type];\n }\n return propagate;\n }\n }\n\n /**\n * Clean up.\n */\n disposeInternal() {\n this.listeners_ && clear(this.listeners_);\n }\n\n /**\n * Get the listeners for a specified event type. Listeners are returned in the\n * order that they will be called in.\n *\n * @param {string} type Type.\n * @return {Array<import(\"../events.js\").Listener>|undefined} Listeners.\n */\n getListeners(type) {\n return (this.listeners_ && this.listeners_[type]) || undefined;\n }\n\n /**\n * @param {string=} opt_type Type. If not provided,\n * `true` will be returned if this event target has any listeners.\n * @return {boolean} Has listeners.\n */\n hasListener(opt_type) {\n if (!this.listeners_) {\n return false;\n }\n return opt_type\n ? opt_type in this.listeners_\n : Object.keys(this.listeners_).length > 0;\n }\n\n /**\n * @param {string} type Type.\n * @param {import(\"../events.js\").Listener} listener Listener.\n */\n removeEventListener(type, listener) {\n const listeners = this.listeners_ && this.listeners_[type];\n if (listeners) {\n const index = listeners.indexOf(listener);\n if (index !== -1) {\n if (this.pendingRemovals_ && type in this.pendingRemovals_) {\n // make listener a no-op, and remove later in #dispatchEvent()\n listeners[index] = VOID;\n ++this.pendingRemovals_[type];\n } else {\n listeners.splice(index, 1);\n if (listeners.length === 0) {\n delete this.listeners_[type];\n }\n }\n }\n }\n }\n}\n\nexport default Target;\n","/**\n * @module ol/events/EventType\n */\n\n/**\n * @enum {string}\n * @const\n */\nexport default {\n /**\n * Generic change event. Triggered when the revision counter is increased.\n * @event module:ol/events/Event~BaseEvent#change\n * @api\n */\n CHANGE: 'change',\n\n /**\n * Generic error event. Triggered when an error occurs.\n * @event module:ol/events/Event~BaseEvent#error\n * @api\n */\n ERROR: 'error',\n\n BLUR: 'blur',\n CLEAR: 'clear',\n CONTEXTMENU: 'contextmenu',\n CLICK: 'click',\n DBLCLICK: 'dblclick',\n DRAGENTER: 'dragenter',\n DRAGOVER: 'dragover',\n DROP: 'drop',\n FOCUS: 'focus',\n KEYDOWN: 'keydown',\n KEYPRESS: 'keypress',\n LOAD: 'load',\n RESIZE: 'resize',\n TOUCHMOVE: 'touchmove',\n WHEEL: 'wheel',\n};\n","/**\n * @module ol/events\n */\nimport {clear} from './obj.js';\n\n/**\n * Key to use with {@link module:ol/Observable~Observable#unByKey}.\n * @typedef {Object} EventsKey\n * @property {ListenerFunction} listener\n * @property {import(\"./events/Target.js\").EventTargetLike} target\n * @property {string} type\n * @api\n */\n\n/**\n * Listener function. This function is called with an event object as argument.\n * When the function returns `false`, event propagation will stop.\n *\n * @typedef {function((Event|import(\"./events/Event.js\").default)): (void|boolean)} ListenerFunction\n * @api\n */\n\n/**\n * @typedef {Object} ListenerObject\n * @property {ListenerFunction} handleEvent\n */\n\n/**\n * @typedef {ListenerFunction|ListenerObject} Listener\n */\n\n/**\n * Registers an event listener on an event target. Inspired by\n * https://google.github.io/closure-library/api/source/closure/goog/events/events.js.src.html\n *\n * This function efficiently binds a `listener` to a `this` object, and returns\n * a key for use with {@link module:ol/events~unlistenByKey}.\n *\n * @param {import(\"./events/Target.js\").EventTargetLike} target Event target.\n * @param {string} type Event type.\n * @param {ListenerFunction} listener Listener.\n * @param {Object=} opt_this Object referenced by the `this` keyword in the\n * listener. Default is the `target`.\n * @param {boolean=} opt_once If true, add the listener as one-off listener.\n * @return {EventsKey} Unique key for the listener.\n */\nexport function listen(target, type, listener, opt_this, opt_once) {\n if (opt_this && opt_this !== target) {\n listener = listener.bind(opt_this);\n }\n if (opt_once) {\n const originalListener = listener;\n listener = function () {\n target.removeEventListener(type, listener);\n originalListener.apply(this, arguments);\n };\n }\n const eventsKey = {\n target: target,\n type: type,\n listener: listener,\n };\n target.addEventListener(type, listener);\n return eventsKey;\n}\n\n/**\n * Registers a one-off event listener on an event target. Inspired by\n * https://google.github.io/closure-library/api/source/closure/goog/events/events.js.src.html\n *\n * This function efficiently binds a `listener` as self-unregistering listener\n * to a `this` object, and returns a key for use with\n * {@link module:ol/events~unlistenByKey} in case the listener needs to be\n * unregistered before it is called.\n *\n * When {@link module:ol/events~listen} is called with the same arguments after this\n * function, the self-unregistering listener will be turned into a permanent\n * listener.\n *\n * @param {import(\"./events/Target.js\").EventTargetLike} target Event target.\n * @param {string} type Event type.\n * @param {ListenerFunction} listener Listener.\n * @param {Object=} opt_this Object referenced by the `this` keyword in the\n * listener. Default is the `target`.\n * @return {EventsKey} Key for unlistenByKey.\n */\nexport function listenOnce(target, type, listener, opt_this) {\n return listen(target, type, listener, opt_this, true);\n}\n\n/**\n * Unregisters event listeners on an event target. Inspired by\n * https://google.github.io/closure-library/api/source/closure/goog/events/events.js.src.html\n *\n * The argument passed to this function is the key returned from\n * {@link module:ol/events~listen} or {@link module:ol/events~listenOnce}.\n *\n * @param {EventsKey} key The key.\n */\nexport function unlistenByKey(key) {\n if (key && key.target) {\n key.target.removeEventListener(key.type, key.listener);\n clear(key);\n }\n}\n","/**\n * @module ol/Observable\n */\nimport EventTarget from './events/Target.js';\nimport EventType from './events/EventType.js';\nimport {listen, listenOnce, unlistenByKey} from './events.js';\n\n/**\n * @classdesc\n * Abstract base class; normally only used for creating subclasses and not\n * instantiated in apps.\n * An event target providing convenient methods for listener registration\n * and unregistration. A generic `change` event is always available through\n * {@link module:ol/Observable~Observable#changed}.\n *\n * @fires import(\"./events/Event.js\").default\n * @api\n */\nclass Observable extends EventTarget {\n constructor() {\n super();\n\n /**\n * @private\n * @type {number}\n */\n this.revision_ = 0;\n }\n\n /**\n * Increases the revision counter and dispatches a 'change' event.\n * @api\n */\n changed() {\n ++this.revision_;\n this.dispatchEvent(EventType.CHANGE);\n }\n\n /**\n * Get the version number for this object. Each time the object is modified,\n * its version number will be incremented.\n * @return {number} Revision.\n * @api\n */\n getRevision() {\n return this.revision_;\n }\n\n /**\n * Listen for a certain type of event.\n * @param {string|Array<string>} type The event type or array of event types.\n * @param {function(?): ?} listener The listener function.\n * @return {import(\"./events.js\").EventsKey|Array<import(\"./events.js\").EventsKey>} Unique key for the listener. If\n * called with an array of event types as the first argument, the return\n * will be an array of keys.\n * @api\n */\n on(type, listener) {\n if (Array.isArray(type)) {\n const len = type.length;\n const keys = new Array(len);\n for (let i = 0; i < len; ++i) {\n keys[i] = listen(this, type[i], listener);\n }\n return keys;\n } else {\n return listen(this, /** @type {string} */ (type), listener);\n }\n }\n\n /**\n * Listen once for a certain type of event.\n * @param {string|Array<string>} type The event type or array of event types.\n * @param {function(?): ?} listener The listener function.\n * @return {import(\"./events.js\").EventsKey|Array<import(\"./events.js\").EventsKey>} Unique key for the listener. If\n * called with an array of event types as the first argument, the return\n * will be an array of keys.\n * @api\n */\n once(type, listener) {\n let key;\n if (Array.isArray(type)) {\n const len = type.length;\n key = new Array(len);\n for (let i = 0; i < len; ++i) {\n key[i] = listenOnce(this, type[i], listener);\n }\n } else {\n key = listenOnce(this, /** @type {string} */ (type), listener);\n }\n /** @type {Object} */ (listener).ol_key = key;\n return key;\n }\n\n /**\n * Unlisten for a certain type of event.\n * @param {string|Array<string>} type The event type or array of event types.\n * @param {function(?): ?} listener The listener function.\n * @api\n */\n un(type, listener) {\n const key = /** @type {Object} */ (listener).ol_key;\n if (key) {\n unByKey(key);\n } else if (Array.isArray(type)) {\n for (let i = 0, ii = type.length; i < ii; ++i) {\n this.removeEventListener(type[i], listener);\n }\n } else {\n this.removeEventListener(type, listener);\n }\n }\n}\n\n/**\n * Removes an event listener using the key returned by `on()` or `once()`.\n * @param {import(\"./events.js\").EventsKey|Array<import(\"./events.js\").EventsKey>} key The key returned by `on()`\n * or `once()` (or an array of keys).\n * @api\n */\nexport function unByKey(key) {\n if (Array.isArray(key)) {\n for (let i = 0, ii = key.length; i < ii; ++i) {\n unlistenByKey(key[i]);\n }\n } else {\n unlistenByKey(/** @type {import(\"./events.js\").EventsKey} */ (key));\n }\n}\n\nexport default Observable;\n","/**\n * @module ol/Object\n */\nimport Event from './events/Event.js';\nimport ObjectEventType from './ObjectEventType.js';\nimport Observable from './Observable.js';\nimport {assign, isEmpty} from './obj.js';\nimport {getUid} from './util.js';\n\n/**\n * @classdesc\n * Events emitted by {@link module:ol/Object~BaseObject} instances are instances of this type.\n */\nexport class ObjectEvent extends Event {\n /**\n * @param {string} type The event type.\n * @param {string} key The property name.\n * @param {*} oldValue The old value for `key`.\n */\n constructor(type, key, oldValue) {\n super(type);\n\n /**\n * The name of the property whose value is changing.\n * @type {string}\n * @api\n */\n this.key = key;\n\n /**\n * The old value. To get the new value use `e.target.get(e.key)` where\n * `e` is the event object.\n * @type {*}\n * @api\n */\n this.oldValue = oldValue;\n }\n}\n\n/**\n * @classdesc\n * Abstract base class; normally only used for creating subclasses and not\n * instantiated in apps.\n * Most non-trivial classes inherit from this.\n *\n * This extends {@link module:ol/Observable} with observable\n * properties, where each property is observable as well as the object as a\n * whole.\n *\n * Classes that inherit from this have pre-defined properties, to which you can\n * add your owns. The pre-defined properties are listed in this documentation as\n * 'Observable Properties', and have their own accessors; for example,\n * {@link module:ol/Map~Map} has a `target` property, accessed with\n * `getTarget()` and changed with `setTarget()`. Not all properties are however\n * settable. There are also general-purpose accessors `get()` and `set()`. For\n * example, `get('target')` is equivalent to `getTarget()`.\n *\n * The `set` accessors trigger a change event, and you can monitor this by\n * registering a listener. For example, {@link module:ol/View~View} has a\n * `center` property, so `view.on('change:center', function(evt) {...});` would\n * call the function whenever the value of the center property changes. Within\n * the function, `evt.target` would be the view, so `evt.target.getCenter()`\n * would return the new center.\n *\n * You can add your own observable properties with\n * `object.set('prop', 'value')`, and retrieve that with `object.get('prop')`.\n * You can listen for changes on that property value with\n * `object.on('change:prop', listener)`. You can get a list of all\n * properties with {@link module:ol/Object~BaseObject#getProperties}.\n *\n * Note that the observable properties are separate from standard JS properties.\n * You can, for example, give your map object a title with\n * `map.title='New title'` and with `map.set('title', 'Another title')`. The\n * first will be a `hasOwnProperty`; the second will appear in\n * `getProperties()`. Only the second is observable.\n *\n * Properties can be deleted by using the unset method. E.g.\n * object.unset('foo').\n *\n * @fires ObjectEvent\n * @api\n */\nclass BaseObject extends Observable {\n /**\n * @param {Object<string, *>=} opt_values An object with key-value pairs.\n */\n constructor(opt_values) {\n super();\n\n // Call {@link module:ol/util~getUid} to ensure that the order of objects' ids is\n // the same as the order in which they were created. This also helps to\n // ensure that object properties are always added in the same order, which\n // helps many JavaScript engines generate faster code.\n getUid(this);\n\n /**\n * @private\n * @type {Object<string, *>}\n */\n this.values_ = null;\n\n if (opt_values !== undefined) {\n this.setProperties(opt_values);\n }\n }\n\n /**\n * Gets a value.\n * @param {string} key Key name.\n * @return {*} Value.\n * @api\n */\n get(key) {\n let value;\n if (this.values_ && this.values_.hasOwnProperty(key)) {\n value = this.values_[key];\n }\n return value;\n }\n\n /**\n * Get a list of object property names.\n * @return {Array<string>} List of property names.\n * @api\n */\n getKeys() {\n return (this.values_ && Object.keys(this.values_)) || [];\n }\n\n /**\n * Get an object of all property names and values.\n * @return {Object<string, *>} Object.\n * @api\n */\n getProperties() {\n return (this.values_ && assign({}, this.values_)) || {};\n }\n\n /**\n * @return {boolean} The object has properties.\n */\n hasProperties() {\n return !!this.values_;\n }\n\n /**\n * @param {string} key Key name.\n * @param {*} oldValue Old value.\n */\n notify(key, oldValue) {\n let eventType;\n eventType = getChangeEventType(key);\n this.dispatchEvent(new ObjectEvent(eventType, key, oldValue));\n eventType = ObjectEventType.PROPERTYCHANGE;\n this.dispatchEvent(new ObjectEvent(eventType, key, oldValue));\n }\n\n /**\n * Sets a value.\n * @param {string} key Key name.\n * @param {*} value Value.\n * @param {boolean=} opt_silent Update without triggering an event.\n * @api\n */\n set(key, value, opt_silent) {\n const values = this.values_ || (this.values_ = {});\n if (opt_silent) {\n values[key] = value;\n } else {\n const oldValue = values[key];\n values[key] = value;\n if (oldValue !== value) {\n this.notify(key, oldValue);\n }\n }\n }\n\n /**\n * Sets a collection of key-value pairs. Note that this changes any existing\n * properties and adds new ones (it does not remove any existing properties).\n * @param {Object<string, *>} values Values.\n * @param {boolean=} opt_silent Update without triggering an event.\n * @api\n */\n setProperties(values, opt_silent) {\n for (const key in values) {\n this.set(key, values[key], opt_silent);\n }\n }\n\n /**\n * Unsets a property.\n * @param {string} key Key name.\n * @param {boolean=} opt_silent Unset without triggering an event.\n * @api\n */\n unset(key, opt_silent) {\n if (this.values_ && key in this.values_) {\n const oldValue = this.values_[key];\n delete this.values_[key];\n if (isEmpty(this.values_)) {\n this.values_ = null;\n }\n if (!opt_silent) {\n this.notify(key, oldValue);\n }\n }\n }\n}\n\n/**\n * @type {Object<string, string>}\n */\nconst changeEventTypeCache = {};\n\n/**\n * @param {string} key Key name.\n * @return {string} Change name.\n */\nexport function getChangeEventType(key) {\n return changeEventTypeCache.hasOwnProperty(key)\n ? changeEventTypeCache[key]\n : (changeEventTypeCache[key] = 'change:' + key);\n}\n\nexport default BaseObject;\n","/**\n * @module ol/CollectionEventType\n */\n\n/**\n * @enum {string}\n */\nexport default {\n /**\n * Triggered when an item is added to the collection.\n * @event module:ol/Collection.CollectionEvent#add\n * @api\n */\n ADD: 'add',\n /**\n * Triggered when an item is removed from the collection.\n * @event module:ol/Collection.CollectionEvent#remove\n * @api\n */\n REMOVE: 'remove',\n};\n","/**\n * @module ol/Collection\n */\nimport AssertionError from './AssertionError.js';\nimport BaseObject from './Object.js';\nimport CollectionEventType from './CollectionEventType.js';\nimport Event from './events/Event.js';\n\n/**\n * @enum {string}\n * @private\n */\nconst Property = {\n LENGTH: 'length',\n};\n\n/**\n * @classdesc\n * Events emitted by {@link module:ol/Collection~Collection} instances are instances of this\n * type.\n */\nexport class CollectionEvent extends Event {\n /**\n * @param {import(\"./CollectionEventType.js\").default} type Type.\n * @param {*=} opt_element Element.\n * @param {number=} opt_index The index of the added or removed element.\n */\n constructor(type, opt_element, opt_index) {\n super(type);\n\n /**\n * The element that is added to or removed from the collection.\n * @type {*}\n * @api\n */\n this.element = opt_element;\n\n /**\n * The index of the added or removed element.\n * @type {number}\n * @api\n */\n this.index = opt_index;\n }\n}\n\n/**\n * @typedef {Object} Options\n * @property {boolean} [unique=false] Disallow the same item from being added to\n * the collection twice.\n */\n\n/**\n * @classdesc\n * An expanded version of standard JS Array, adding convenience methods for\n * manipulation. Add and remove changes to the Collection trigger a Collection\n * event. Note that this does not cover changes to the objects _within_ the\n * Collection; they trigger events on the appropriate object, not on the\n * Collection as a whole.\n *\n * @fires CollectionEvent\n *\n * @template T\n * @api\n */\nclass Collection extends BaseObject {\n /**\n * @param {Array<T>=} opt_array Array.\n * @param {Options=} opt_options Collection options.\n */\n constructor(opt_array, opt_options) {\n super();\n\n const options = opt_options || {};\n\n /**\n * @private\n * @type {boolean}\n */\n this.unique_ = !!options.unique;\n\n /**\n * @private\n * @type {!Array<T>}\n */\n this.array_ = opt_array ? opt_array : [];\n\n if (this.unique_) {\n for (let i = 0, ii = this.array_.length; i < ii; ++i) {\n this.assertUnique_(this.array_[i], i);\n }\n }\n\n this.updateLength_();\n }\n\n /**\n * Remove all elements from the collection.\n * @api\n */\n clear() {\n while (this.getLength() > 0) {\n this.pop();\n }\n }\n\n /**\n * Add elements to the collection. This pushes each item in the provided array\n * to the end of the collection.\n * @param {!Array<T>} arr Array.\n * @return {Collection<T>} This collection.\n * @api\n */\n extend(arr) {\n for (let i = 0, ii = arr.length; i < ii; ++i) {\n this.push(arr[i]);\n }\n return this;\n }\n\n /**\n * Iterate over each element, calling the provided callback.\n * @param {function(T, number, Array<T>): *} f The function to call\n * for every element. This function takes 3 arguments (the element, the\n * index and the array). The return value is ignored.\n * @api\n */\n forEach(f) {\n const array = this.array_;\n for (let i = 0, ii = array.length; i < ii; ++i) {\n f(array[i], i, array);\n }\n }\n\n /**\n * Get a reference to the underlying Array object. Warning: if the array\n * is mutated, no events will be dispatched by the collection, and the\n * collection's \"length\" property won't be in sync with the actual length\n * of the array.\n * @return {!Array<T>} Array.\n * @api\n */\n getArray() {\n return this.array_;\n }\n\n /**\n * Get the element at the provided index.\n * @param {number} index Index.\n * @return {T} Element.\n * @api\n */\n item(index) {\n return this.array_[index];\n }\n\n /**\n * Get the length of this collection.\n * @return {number} The length of the array.\n * @observable\n * @api\n */\n getLength() {\n return this.get(Property.LENGTH);\n }\n\n /**\n * Insert an element at the provided index.\n * @param {number} index Index.\n * @param {T} elem Element.\n * @api\n */\n insertAt(index, elem) {\n if (this.unique_) {\n this.assertUnique_(elem);\n }\n this.array_.splice(index, 0, elem);\n this.updateLength_();\n this.dispatchEvent(\n new CollectionEvent(CollectionEventType.ADD, elem, index)\n );\n }\n\n /**\n * Remove the last element of the collection and return it.\n * Return `undefined` if the collection is empty.\n * @return {T|undefined} Element.\n * @api\n */\n pop() {\n return this.removeAt(this.getLength() - 1);\n }\n\n /**\n * Insert the provided element at the end of the collection.\n * @param {T} elem Element.\n * @return {number} New length of the collection.\n * @api\n */\n push(elem) {\n if (this.unique_) {\n this.assertUnique_(elem);\n }\n const n = this.getLength();\n this.insertAt(n, elem);\n return this.getLength();\n }\n\n /**\n * Remove the first occurrence of an element from the collection.\n * @param {T} elem Element.\n * @return {T|undefined} The removed element or undefined if none found.\n * @api\n */\n remove(elem) {\n const arr = this.array_;\n for (let i = 0, ii = arr.length; i < ii; ++i) {\n if (arr[i] === elem) {\n return this.removeAt(i);\n }\n }\n return undefined;\n }\n\n /**\n * Remove the element at the provided index and return it.\n * Return `undefined` if the collection does not contain this index.\n * @param {number} index Index.\n * @return {T|undefined} Value.\n * @api\n */\n removeAt(index) {\n const prev = this.array_[index];\n this.array_.splice(index, 1);\n this.updateLength_();\n this.dispatchEvent(\n new CollectionEvent(CollectionEventType.REMOVE, prev, index)\n );\n return prev;\n }\n\n /**\n * Set the element at the provided index.\n * @param {number} index Index.\n * @param {T} elem Element.\n * @api\n */\n setAt(index, elem) {\n const n = this.getLength();\n if (index < n) {\n if (this.unique_) {\n this.assertUnique_(elem, index);\n }\n const prev = this.array_[index];\n this.array_[index] = elem;\n this.dispatchEvent(\n new CollectionEvent(CollectionEventType.REMOVE, prev, index)\n );\n this.dispatchEvent(\n new CollectionEvent(CollectionEventType.ADD, elem, index)\n );\n } else {\n for (let j = n; j < index; ++j) {\n this.insertAt(j, undefined);\n }\n this.insertAt(index, elem);\n }\n }\n\n /**\n * @private\n */\n updateLength_() {\n this.set(Property.LENGTH, this.array_.length);\n }\n\n /**\n * @private\n * @param {T} elem Element.\n * @param {number=} opt_except Optional index to ignore.\n */\n assertUnique_(elem, opt_except) {\n for (let i = 0, ii = this.array_.length; i < ii; ++i) {\n if (this.array_[i] === elem && i !== opt_except) {\n throw new AssertionError(58);\n }\n }\n }\n}\n\nexport default Collection;\n","/**\n * @module ol/asserts\n */\nimport AssertionError from './AssertionError.js';\n\n/**\n * @param {*} assertion Assertion we expected to be truthy.\n * @param {number} errorCode Error code.\n */\nexport function assert(assertion, errorCode) {\n if (!assertion) {\n throw new AssertionError(errorCode);\n }\n}\n","/**\n * @module ol/Feature\n */\nimport BaseObject, {getChangeEventType} from './Object.js';\nimport EventType from './events/EventType.js';\nimport {assert} from './asserts.js';\nimport {listen, unlistenByKey} from './events.js';\n\n/**\n * @typedef {typeof Feature|typeof import(\"./render/Feature.js\").default} FeatureClass\n */\n\n/**\n * @typedef {Feature|import(\"./render/Feature.js\").default} FeatureLike\n */\n\n/**\n * @classdesc\n * A vector object for geographic features with a geometry and other\n * attribute properties, similar to the features in vector file formats like\n * GeoJSON.\n *\n * Features can be styled individually with `setStyle`; otherwise they use the\n * style of their vector layer.\n *\n * Note that attribute properties are set as {@link module:ol/Object} properties on\n * the feature object, so they are observable, and have get/set accessors.\n *\n * Typically, a feature has a single geometry property. You can set the\n * geometry using the `setGeometry` method and get it with `getGeometry`.\n * It is possible to store more than one geometry on a feature using attribute\n * properties. By default, the geometry used for rendering is identified by\n * the property name `geometry`. If you want to use another geometry property\n * for rendering, use the `setGeometryName` method to change the attribute\n * property associated with the geometry for the feature. For example:\n *\n * ```js\n *\n * import Feature from 'ol/Feature';\n * import Polygon from 'ol/geom/Polygon';\n * import Point from 'ol/geom/Point';\n *\n * var feature = new Feature({\n * geometry: new Polygon(polyCoords),\n * labelPoint: new Point(labelCoords),\n * name: 'My Polygon'\n * });\n *\n * // get the polygon geometry\n * var poly = feature.getGeometry();\n *\n * // Render the feature as a point using the coordinates from labelPoint\n * feature.setGeometryName('labelPoint');\n *\n * // get the point geometry\n * var point = feature.getGeometry();\n * ```\n *\n * @api\n * @template {import(\"./geom/Geometry.js\").default} Geometry\n */\nclass Feature extends BaseObject {\n /**\n * @param {Geometry|Object<string, *>=} opt_geometryOrProperties\n * You may pass a Geometry object directly, or an object literal containing\n * properties. If you pass an object literal, you may include a Geometry\n * associated with a `geometry` key.\n */\n constructor(opt_geometryOrProperties) {\n super();\n\n /**\n * @private\n * @type {number|string|undefined}\n */\n this.id_ = undefined;\n\n /**\n * @type {string}\n * @private\n */\n this.geometryName_ = 'geometry';\n\n /**\n * User provided style.\n * @private\n * @type {import(\"./style/Style.js\").StyleLike}\n */\n this.style_ = null;\n\n /**\n * @private\n * @type {import(\"./style/Style.js\").StyleFunction|undefined}\n */\n this.styleFunction_ = undefined;\n\n /**\n * @private\n * @type {?import(\"./events.js\").EventsKey}\n */\n this.geometryChangeKey_ = null;\n\n this.addEventListener(\n getChangeEventType(this.geometryName_),\n this.handleGeometryChanged_\n );\n\n if (opt_geometryOrProperties) {\n if (\n typeof (\n /** @type {?} */ (opt_geometryOrProperties).getSimplifiedGeometry\n ) === 'function'\n ) {\n const geometry = /** @type {Geometry} */ (opt_geometryOrProperties);\n this.setGeometry(geometry);\n } else {\n /** @type {Object<string, *>} */\n const properties = opt_geometryOrProperties;\n this.setProperties(properties);\n }\n }\n }\n\n /**\n * Clone this feature. If the original feature has a geometry it\n * is also cloned. The feature id is not set in the clone.\n * @return {Feature} The clone.\n * @api\n */\n clone() {\n const clone = new Feature(\n this.hasProperties() ? this.getProperties() : null\n );\n clone.setGeometryName(this.getGeometryName());\n const geometry = this.getGeometry();\n if (geometry) {\n clone.setGeometry(geometry.clone());\n }\n const style = this.getStyle();\n if (style) {\n clone.setStyle(style);\n }\n return clone;\n }\n\n /**\n * Get the feature's default geometry. A feature may have any number of named\n * geometries. The \"default\" geometry (the one that is rendered by default) is\n * set when calling {@link module:ol/Feature~Feature#setGeometry}.\n * @return {Geometry|undefined} The default geometry for the feature.\n * @api\n * @observable\n */\n getGeometry() {\n return /** @type {Geometry|undefined} */ (this.get(this.geometryName_));\n }\n\n /**\n * Get the feature identifier. This is a stable identifier for the feature and\n * is either set when reading data from a remote source or set explicitly by\n * calling {@link module:ol/Feature~Feature#setId}.\n * @return {number|string|undefined} Id.\n * @api\n */\n getId() {\n return this.id_;\n }\n\n /**\n * Get the name of the feature's default geometry. By default, the default\n * geometry is named `geometry`.\n * @return {string} Get the property name associated with the default geometry\n * for this feature.\n * @api\n */\n getGeometryName() {\n return this.geometryName_;\n }\n\n /**\n * Get the feature's style. Will return what was provided to the\n * {@link module:ol/Feature~Feature#setStyle} method.\n * @return {import(\"./style/Style.js\").StyleLike|undefined} The feature style.\n * @api\n */\n getStyle() {\n return this.style_;\n }\n\n /**\n * Get the feature's style function.\n * @return {import(\"./style/Style.js\").StyleFunction|undefined} Return a function\n * representing the current style of this feature.\n * @api\n */\n getStyleFunction() {\n return this.styleFunction_;\n }\n\n /**\n * @private\n */\n handleGeometryChange_() {\n this.changed();\n }\n\n /**\n * @private\n */\n handleGeometryChanged_() {\n if (this.geometryChangeKey_) {\n unlistenByKey(this.geometryChangeKey_);\n this.geometryChangeKey_ = null;\n }\n const geometry = this.getGeometry();\n if (geometry) {\n this.geometryChangeKey_ = listen(\n geometry,\n EventType.CHANGE,\n this.handleGeometryChange_,\n this\n );\n }\n this.changed();\n }\n\n /**\n * Set the default geometry for the feature. This will update the property\n * with the name returned by {@link module:ol/Feature~Feature#getGeometryName}.\n * @param {Geometry|undefined} geometry The new geometry.\n * @api\n * @observable\n */\n setGeometry(geometry) {\n this.set(this.geometryName_, geometry);\n }\n\n /**\n * Set the style for the feature to override the layer style. This can be a\n * single style object, an array of styles, or a function that takes a\n * resolution and returns an array of styles. To unset the feature style, call\n * `setStyle()` without arguments or a falsey value.\n * @param {import(\"./style/Style.js\").StyleLike=} opt_style Style for this feature.\n * @api\n * @fires module:ol/events/Event~BaseEvent#event:change\n */\n setStyle(opt_style) {\n this.style_ = opt_style;\n this.styleFunction_ = !opt_style\n ? undefined\n : createStyleFunction(opt_style);\n this.changed();\n }\n\n /**\n * Set the feature id. The feature id is considered stable and may be used when\n * requesting features or comparing identifiers returned from a remote source.\n * The feature id can be used with the\n * {@link module:ol/source/Vector~VectorSource#getFeatureById} method.\n * @param {number|string|undefined} id The feature id.\n * @api\n * @fires module:ol/events/Event~BaseEvent#event:change\n */\n setId(id) {\n this.id_ = id;\n this.changed();\n }\n\n /**\n * Set the property name to be used when getting the feature's default geometry.\n * When calling {@link module:ol/Feature~Feature#getGeometry}, the value of the property with\n * this name will be returned.\n * @param {string} name The property name of the default geometry.\n * @api\n */\n setGeometryName(name) {\n this.removeEventListener(\n getChangeEventType(this.geometryName_),\n this.handleGeometryChanged_\n );\n this.geometryName_ = name;\n this.addEventListener(\n getChangeEventType(this.geometryName_),\n this.handleGeometryChanged_\n );\n this.handleGeometryChanged_();\n }\n}\n\n/**\n * Convert the provided object into a feature style function. Functions passed\n * through unchanged. Arrays of Style or single style objects wrapped\n * in a new feature style function.\n * @param {!import(\"./style/Style.js\").StyleFunction|!Array<import(\"./style/Style.js\").default>|!import(\"./style/Style.js\").default} obj\n * A feature style function, a single style, or an array of styles.\n * @return {import(\"./style/Style.js\").StyleFunction} A style function.\n */\nexport function createStyleFunction(obj) {\n if (typeof obj === 'function') {\n return obj;\n } else {\n /**\n * @type {Array<import(\"./style/Style.js\").default>}\n */\n let styles;\n if (Array.isArray(obj)) {\n styles = obj;\n } else {\n assert(typeof (/** @type {?} */ (obj).getZIndex) === 'function', 41); // Expected an `import(\"./style/Style.js\").Style` or an array of `import(\"./style/Style.js\").Style`\n const style = /** @type {import(\"./style/Style.js\").default} */ (obj);\n styles = [style];\n }\n return function () {\n return styles;\n };\n }\n}\nexport default Feature;\n","/**\n * @module ol/geom/GeometryLayout\n */\n\n/**\n * The coordinate layout for geometries, indicating whether a 3rd or 4th z ('Z')\n * or measure ('M') coordinate is available. Supported values are `'XY'`,\n * `'XYZ'`, `'XYM'`, `'XYZM'`.\n * @enum {string}\n */\nexport default {\n XY: 'XY',\n XYZ: 'XYZ',\n XYM: 'XYM',\n XYZM: 'XYZM',\n};\n","/**\n * @module ol/geom/GeometryType\n */\n\n/**\n * The geometry type. One of `'Point'`, `'LineString'`, `'LinearRing'`,\n * `'Polygon'`, `'MultiPoint'`, `'MultiLineString'`, `'MultiPolygon'`,\n * `'GeometryCollection'`, `'Circle'`.\n * @enum {string}\n */\nexport default {\n POINT: 'Point',\n LINE_STRING: 'LineString',\n LINEAR_RING: 'LinearRing',\n POLYGON: 'Polygon',\n MULTI_POINT: 'MultiPoint',\n MULTI_LINE_STRING: 'MultiLineString',\n MULTI_POLYGON: 'MultiPolygon',\n GEOMETRY_COLLECTION: 'GeometryCollection',\n CIRCLE: 'Circle',\n};\n","/**\n * @module ol/proj/Units\n */\n\n/**\n * Projection units: `'degrees'`, `'ft'`, `'m'`, `'pixels'`, `'tile-pixels'` or\n * `'us-ft'`.\n * @enum {string}\n */\nconst Units = {\n DEGREES: 'degrees',\n FEET: 'ft',\n METERS: 'm',\n PIXELS: 'pixels',\n TILE_PIXELS: 'tile-pixels',\n USFEET: 'us-ft',\n};\n\n/**\n * Meters per unit lookup table.\n * @const\n * @type {Object<Units, number>}\n * @api\n */\nexport const METERS_PER_UNIT = {};\n// use the radius of the Normal sphere\nMETERS_PER_UNIT[Units.DEGREES] = (2 * Math.PI * 6370997) / 360;\nMETERS_PER_UNIT[Units.FEET] = 0.3048;\nMETERS_PER_UNIT[Units.METERS] = 1;\nMETERS_PER_UNIT[Units.USFEET] = 1200 / 3937;\n\nexport default Units;\n","/**\n * @module ol/transform\n */\nimport {assert} from './asserts.js';\n\n/**\n * An array representing an affine 2d transformation for use with\n * {@link module:ol/transform} functions. The array has 6 elements.\n * @typedef {!Array<number>} Transform\n * @api\n */\n\n/**\n * Collection of affine 2d transformation functions. The functions work on an\n * array of 6 elements. The element order is compatible with the [SVGMatrix\n * interface](https://developer.mozilla.org/en-US/docs/Web/API/SVGMatrix) and is\n * a subset (elements a to f) of a 3×3 matrix:\n * ```\n * [ a c e ]\n * [ b d f ]\n * [ 0 0 1 ]\n * ```\n */\n\n/**\n * @private\n * @type {Transform}\n */\nconst tmp_ = new Array(6);\n\n/**\n * Create an identity transform.\n * @return {!Transform} Identity transform.\n */\nexport function create() {\n return [1, 0, 0, 1, 0, 0];\n}\n\n/**\n * Resets the given transform to an identity transform.\n * @param {!Transform} transform Transform.\n * @return {!Transform} Transform.\n */\nexport function reset(transform) {\n return set(transform, 1, 0, 0, 1, 0, 0);\n}\n\n/**\n * Multiply the underlying matrices of two transforms and return the result in\n * the first transform.\n * @param {!Transform} transform1 Transform parameters of matrix 1.\n * @param {!Transform} transform2 Transform parameters of matrix 2.\n * @return {!Transform} transform1 multiplied with transform2.\n */\nexport function multiply(transform1, transform2) {\n const a1 = transform1[0];\n const b1 = transform1[1];\n const c1 = transform1[2];\n const d1 = transform1[3];\n const e1 = transform1[4];\n const f1 = transform1[5];\n const a2 = transform2[0];\n const b2 = transform2[1];\n const c2 = transform2[2];\n const d2 = transform2[3];\n const e2 = transform2[4];\n const f2 = transform2[5];\n\n transform1[0] = a1 * a2 + c1 * b2;\n transform1[1] = b1 * a2 + d1 * b2;\n transform1[2] = a1 * c2 + c1 * d2;\n transform1[3] = b1 * c2 + d1 * d2;\n transform1[4] = a1 * e2 + c1 * f2 + e1;\n transform1[5] = b1 * e2 + d1 * f2 + f1;\n\n return transform1;\n}\n\n/**\n * Set the transform components a-f on a given transform.\n * @param {!Transform} transform Transform.\n * @param {number} a The a component of the transform.\n * @param {number} b The b component of the transform.\n * @param {number} c The c component of the transform.\n * @param {number} d The d component of the transform.\n * @param {number} e The e component of the transform.\n * @param {number} f The f component of the transform.\n * @return {!Transform} Matrix with transform applied.\n */\nexport function set(transform, a, b, c, d, e, f) {\n transform[0] = a;\n transform[1] = b;\n transform[2] = c;\n transform[3] = d;\n transform[4] = e;\n transform[5] = f;\n return transform;\n}\n\n/**\n * Set transform on one matrix from another matrix.\n * @param {!Transform} transform1 Matrix to set transform to.\n * @param {!Transform} transform2 Matrix to set transform from.\n * @return {!Transform} transform1 with transform from transform2 applied.\n */\nexport function setFromArray(transform1, transform2) {\n transform1[0] = transform2[0];\n transform1[1] = transform2[1];\n transform1[2] = transform2[2];\n transform1[3] = transform2[3];\n transform1[4] = transform2[4];\n transform1[5] = transform2[5];\n return transform1;\n}\n\n/**\n * Transforms the given coordinate with the given transform returning the\n * resulting, transformed coordinate. The coordinate will be modified in-place.\n *\n * @param {Transform} transform The transformation.\n * @param {import(\"./coordinate.js\").Coordinate|import(\"./pixel.js\").Pixel} coordinate The coordinate to transform.\n * @return {import(\"./coordinate.js\").Coordinate|import(\"./pixel.js\").Pixel} return coordinate so that operations can be\n * chained together.\n */\nexport function apply(transform, coordinate) {\n const x = coordinate[0];\n const y = coordinate[1];\n coordinate[0] = transform[0] * x + transform[2] * y + transform[4];\n coordinate[1] = transform[1] * x + transform[3] * y + transform[5];\n return coordinate;\n}\n\n/**\n * Applies rotation to the given transform.\n * @param {!Transform} transform Transform.\n * @param {number} angle Angle in radians.\n * @return {!Transform} The rotated transform.\n */\nexport function rotate(transform, angle) {\n const cos = Math.cos(angle);\n const sin = Math.sin(angle);\n return multiply(transform, set(tmp_, cos, sin, -sin, cos, 0, 0));\n}\n\n/**\n * Applies scale to a given transform.\n * @param {!Transform} transform Transform.\n * @param {number} x Scale factor x.\n * @param {number} y Scale factor y.\n * @return {!Transform} The scaled transform.\n */\nexport function scale(transform, x, y) {\n return multiply(transform, set(tmp_, x, 0, 0, y, 0, 0));\n}\n\n/**\n * Creates a scale transform.\n * @param {!Transform} target Transform to overwrite.\n * @param {number} x Scale factor x.\n * @param {number} y Scale factor y.\n * @return {!Transform} The scale transform.\n */\nexport function makeScale(target, x, y) {\n return set(target, x, 0, 0, y, 0, 0);\n}\n\n/**\n * Applies translation to the given transform.\n * @param {!Transform} transform Transform.\n * @param {number} dx Translation x.\n * @param {number} dy Translation y.\n * @return {!Transform} The translated transform.\n */\nexport function translate(transform, dx, dy) {\n return multiply(transform, set(tmp_, 1, 0, 0, 1, dx, dy));\n}\n\n/**\n * Creates a composite transform given an initial translation, scale, rotation, and\n * final translation (in that order only, not commutative).\n * @param {!Transform} transform The transform (will be modified in place).\n * @param {number} dx1 Initial translation x.\n * @param {number} dy1 Initial translation y.\n * @param {number} sx Scale factor x.\n * @param {number} sy Scale factor y.\n * @param {number} angle Rotation (in counter-clockwise radians).\n * @param {number} dx2 Final translation x.\n * @param {number} dy2 Final translation y.\n * @return {!Transform} The composite transform.\n */\nexport function compose(transform, dx1, dy1, sx, sy, angle, dx2, dy2) {\n const sin = Math.sin(angle);\n const cos = Math.cos(angle);\n transform[0] = sx * cos;\n transform[1] = sy * sin;\n transform[2] = -sx * sin;\n transform[3] = sy * cos;\n transform[4] = dx2 * sx * cos - dy2 * sx * sin + dx1;\n transform[5] = dx2 * sy * sin + dy2 * sy * cos + dy1;\n return transform;\n}\n\n/**\n * Creates a composite transform given an initial translation, scale, rotation, and\n * final translation (in that order only, not commutative). The resulting transform\n * string can be applied as `transform` porperty of an HTMLElement's style.\n * @param {number} dx1 Initial translation x.\n * @param {number} dy1 Initial translation y.\n * @param {number} sx Scale factor x.\n * @param {number} sy Scale factor y.\n * @param {number} angle Rotation (in counter-clockwise radians).\n * @param {number} dx2 Final translation x.\n * @param {number} dy2 Final translation y.\n * @return {string} The composite css transform.\n * @api\n */\nexport function composeCssTransform(dx1, dy1, sx, sy, angle, dx2, dy2) {\n return toString(compose(create(), dx1, dy1, sx, sy, angle, dx2, dy2));\n}\n\n/**\n * Invert the given transform.\n * @param {!Transform} source The source transform to invert.\n * @return {!Transform} The inverted (source) transform.\n */\nexport function invert(source) {\n return makeInverse(source, source);\n}\n\n/**\n * Invert the given transform.\n * @param {!Transform} target Transform to be set as the inverse of\n * the source transform.\n * @param {!Transform} source The source transform to invert.\n * @return {!Transform} The inverted (target) transform.\n */\nexport function makeInverse(target, source) {\n const det = determinant(source);\n assert(det !== 0, 32); // Transformation matrix cannot be inverted\n\n const a = source[0];\n const b = source[1];\n const c = source[2];\n const d = source[3];\n const e = source[4];\n const f = source[5];\n\n target[0] = d / det;\n target[1] = -b / det;\n target[2] = -c / det;\n target[3] = a / det;\n target[4] = (c * f - d * e) / det;\n target[5] = -(a * f - b * e) / det;\n\n return target;\n}\n\n/**\n * Returns the determinant of the given matrix.\n * @param {!Transform} mat Matrix.\n * @return {number} Determinant.\n */\nexport function determinant(mat) {\n return mat[0] * mat[3] - mat[1] * mat[2];\n}\n\n/**\n * A string version of the transform. This can be used\n * for CSS transforms.\n * @param {!Transform} mat Matrix.\n * @return {string} The transform as a string.\n */\nexport function toString(mat) {\n return 'matrix(' + mat.join(', ') + ')';\n}\n","/**\n * @module ol/extent/Corner\n */\n\n/**\n * Extent corner.\n * @enum {string}\n */\nexport default {\n BOTTOM_LEFT: 'bottom-left',\n BOTTOM_RIGHT: 'bottom-right',\n TOP_LEFT: 'top-left',\n TOP_RIGHT: 'top-right',\n};\n","/**\n * @module ol/extent/Relationship\n */\n\n/**\n * Relationship to an extent.\n * @enum {number}\n */\nexport default {\n UNKNOWN: 0,\n INTERSECTING: 1,\n ABOVE: 2,\n RIGHT: 4,\n BELOW: 8,\n LEFT: 16,\n};\n","/**\n * @module ol/extent\n */\nimport Corner from './extent/Corner.js';\nimport Relationship from './extent/Relationship.js';\nimport {assert} from './asserts.js';\n\n/**\n * An array of numbers representing an extent: `[minx, miny, maxx, maxy]`.\n * @typedef {Array<number>} Extent\n * @api\n */\n\n/**\n * Build an extent that includes all given coordinates.\n *\n * @param {Array<import(\"./coordinate.js\").Coordinate>} coordinates Coordinates.\n * @return {Extent} Bounding extent.\n * @api\n */\nexport function boundingExtent(coordinates) {\n const extent = createEmpty();\n for (let i = 0, ii = coordinates.length; i < ii; ++i) {\n extendCoordinate(extent, coordinates[i]);\n }\n return extent;\n}\n\n/**\n * @param {Array<number>} xs Xs.\n * @param {Array<number>} ys Ys.\n * @param {Extent=} opt_extent Destination extent.\n * @private\n * @return {Extent} Extent.\n */\nfunction _boundingExtentXYs(xs, ys, opt_extent) {\n const minX = Math.min.apply(null, xs);\n const minY = Math.min.apply(null, ys);\n const maxX = Math.max.apply(null, xs);\n const maxY = Math.max.apply(null, ys);\n return createOrUpdate(minX, minY, maxX, maxY, opt_extent);\n}\n\n/**\n * Return extent increased by the provided value.\n * @param {Extent} extent Extent.\n * @param {number} value The amount by which the extent should be buffered.\n * @param {Extent=} opt_extent Extent.\n * @return {Extent} Extent.\n * @api\n */\nexport function buffer(extent, value, opt_extent) {\n if (opt_extent) {\n opt_extent[0] = extent[0] - value;\n opt_extent[1] = extent[1] - value;\n opt_extent[2] = extent[2] + value;\n opt_extent[3] = extent[3] + value;\n return opt_extent;\n } else {\n return [\n extent[0] - value,\n extent[1] - value,\n extent[2] + value,\n extent[3] + value,\n ];\n }\n}\n\n/**\n * Creates a clone of an extent.\n *\n * @param {Extent} extent Extent to clone.\n * @param {Extent=} opt_extent Extent.\n * @return {Extent} The clone.\n */\nexport function clone(extent, opt_extent) {\n if (opt_extent) {\n opt_extent[0] = extent[0];\n opt_extent[1] = extent[1];\n opt_extent[2] = extent[2];\n opt_extent[3] = extent[3];\n return opt_extent;\n } else {\n return extent.slice();\n }\n}\n\n/**\n * @param {Extent} extent Extent.\n * @param {number} x X.\n * @param {number} y Y.\n * @return {number} Closest squared distance.\n */\nexport function closestSquaredDistanceXY(extent, x, y) {\n let dx, dy;\n if (x < extent[0]) {\n dx = extent[0] - x;\n } else if (extent[2] < x) {\n dx = x - extent[2];\n } else {\n dx = 0;\n }\n if (y < extent[1]) {\n dy = extent[1] - y;\n } else if (extent[3] < y) {\n dy = y - extent[3];\n } else {\n dy = 0;\n }\n return dx * dx + dy * dy;\n}\n\n/**\n * Check if the passed coordinate is contained or on the edge of the extent.\n *\n * @param {Extent} extent Extent.\n * @param {import(\"./coordinate.js\").Coordinate} coordinate Coordinate.\n * @return {boolean} The coordinate is contained in the extent.\n * @api\n */\nexport function containsCoordinate(extent, coordinate) {\n return containsXY(extent, coordinate[0], coordinate[1]);\n}\n\n/**\n * Check if one extent contains another.\n *\n * An extent is deemed contained if it lies completely within the other extent,\n * including if they share one or more edges.\n *\n * @param {Extent} extent1 Extent 1.\n * @param {Extent} extent2 Extent 2.\n * @return {boolean} The second extent is contained by or on the edge of the\n * first.\n * @api\n */\nexport function containsExtent(extent1, extent2) {\n return (\n extent1[0] <= extent2[0] &&\n extent2[2] <= extent1[2] &&\n extent1[1] <= extent2[1] &&\n extent2[3] <= extent1[3]\n );\n}\n\n/**\n * Check if the passed coordinate is contained or on the edge of the extent.\n *\n * @param {Extent} extent Extent.\n * @param {number} x X coordinate.\n * @param {number} y Y coordinate.\n * @return {boolean} The x, y values are contained in the extent.\n * @api\n */\nexport function containsXY(extent, x, y) {\n return extent[0] <= x && x <= extent[2] && extent[1] <= y && y <= extent[3];\n}\n\n/**\n * Get the relationship between a coordinate and extent.\n * @param {Extent} extent The extent.\n * @param {import(\"./coordinate.js\").Coordinate} coordinate The coordinate.\n * @return {import(\"./extent/Relationship.js\").default} The relationship (bitwise compare with\n * import(\"./extent/Relationship.js\").Relationship).\n */\nexport function coordinateRelationship(extent, coordinate) {\n const minX = extent[0];\n const minY = extent[1];\n const maxX = extent[2];\n const maxY = extent[3];\n const x = coordinate[0];\n const y = coordinate[1];\n let relationship = Relationship.UNKNOWN;\n if (x < minX) {\n relationship = relationship | Relationship.LEFT;\n } else if (x > maxX) {\n relationship = relationship | Relationship.RIGHT;\n }\n if (y < minY) {\n relationship = relationship | Relationship.BELOW;\n } else if (y > maxY) {\n relationship = relationship | Relationship.ABOVE;\n }\n if (relationship === Relationship.UNKNOWN) {\n relationship = Relationship.INTERSECTING;\n }\n return relationship;\n}\n\n/**\n * Create an empty extent.\n * @return {Extent} Empty extent.\n * @api\n */\nexport function createEmpty() {\n return [Infinity, Infinity, -Infinity, -Infinity];\n}\n\n/**\n * Create a new extent or update the provided extent.\n * @param {number} minX Minimum X.\n * @param {number} minY Minimum Y.\n * @param {number} maxX Maximum X.\n * @param {number} maxY Maximum Y.\n * @param {Extent=} opt_extent Destination extent.\n * @return {Extent} Extent.\n */\nexport function createOrUpdate(minX, minY, maxX, maxY, opt_extent) {\n if (opt_extent) {\n opt_extent[0] = minX;\n opt_extent[1] = minY;\n opt_extent[2] = maxX;\n opt_extent[3] = maxY;\n return opt_extent;\n } else {\n return [minX, minY, maxX, maxY];\n }\n}\n\n/**\n * Create a new empty extent or make the provided one empty.\n * @param {Extent=} opt_extent Extent.\n * @return {Extent} Extent.\n */\nexport function createOrUpdateEmpty(opt_extent) {\n return createOrUpdate(Infinity, Infinity, -Infinity, -Infinity, opt_extent);\n}\n\n/**\n * @param {import(\"./coordinate.js\").Coordinate} coordinate Coordinate.\n * @param {Extent=} opt_extent Extent.\n * @return {Extent} Extent.\n */\nexport function createOrUpdateFromCoordinate(coordinate, opt_extent) {\n const x = coordinate[0];\n const y = coordinate[1];\n return createOrUpdate(x, y, x, y, opt_extent);\n}\n\n/**\n * @param {Array<import(\"./coordinate.js\").Coordinate>} coordinates Coordinates.\n * @param {Extent=} opt_extent Extent.\n * @return {Extent} Extent.\n */\nexport function createOrUpdateFromCoordinates(coordinates, opt_extent) {\n const extent = createOrUpdateEmpty(opt_extent);\n return extendCoordinates(extent, coordinates);\n}\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {Extent=} opt_extent Extent.\n * @return {Extent} Extent.\n */\nexport function createOrUpdateFromFlatCoordinates(\n flatCoordinates,\n offset,\n end,\n stride,\n opt_extent\n) {\n const extent = createOrUpdateEmpty(opt_extent);\n return extendFlatCoordinates(extent, flatCoordinates, offset, end, stride);\n}\n\n/**\n * @param {Array<Array<import(\"./coordinate.js\").Coordinate>>} rings Rings.\n * @param {Extent=} opt_extent Extent.\n * @return {Extent} Extent.\n */\nexport function createOrUpdateFromRings(rings, opt_extent) {\n const extent = createOrUpdateEmpty(opt_extent);\n return extendRings(extent, rings);\n}\n\n/**\n * Determine if two extents are equivalent.\n * @param {Extent} extent1 Extent 1.\n * @param {Extent} extent2 Extent 2.\n * @return {boolean} The two extents are equivalent.\n * @api\n */\nexport function equals(extent1, extent2) {\n return (\n extent1[0] == extent2[0] &&\n extent1[2] == extent2[2] &&\n extent1[1] == extent2[1] &&\n extent1[3] == extent2[3]\n );\n}\n\n/**\n * Determine if two extents are approximately equivalent.\n * @param {Extent} extent1 Extent 1.\n * @param {Extent} extent2 Extent 2.\n * @param {number} tolerance Tolerance in extent coordinate units.\n * @return {boolean} The two extents differ by less than the tolerance.\n */\nexport function approximatelyEquals(extent1, extent2, tolerance) {\n return (\n Math.abs(extent1[0] - extent2[0]) < tolerance &&\n Math.abs(extent1[2] - extent2[2]) < tolerance &&\n Math.abs(extent1[1] - extent2[1]) < tolerance &&\n Math.abs(extent1[3] - extent2[3]) < tolerance\n );\n}\n\n/**\n * Modify an extent to include another extent.\n * @param {Extent} extent1 The extent to be modified.\n * @param {Extent} extent2 The extent that will be included in the first.\n * @return {Extent} A reference to the first (extended) extent.\n * @api\n */\nexport function extend(extent1, extent2) {\n if (extent2[0] < extent1[0]) {\n extent1[0] = extent2[0];\n }\n if (extent2[2] > extent1[2]) {\n extent1[2] = extent2[2];\n }\n if (extent2[1] < extent1[1]) {\n extent1[1] = extent2[1];\n }\n if (extent2[3] > extent1[3]) {\n extent1[3] = extent2[3];\n }\n return extent1;\n}\n\n/**\n * @param {Extent} extent Extent.\n * @param {import(\"./coordinate.js\").Coordinate} coordinate Coordinate.\n */\nexport function extendCoordinate(extent, coordinate) {\n if (coordinate[0] < extent[0]) {\n extent[0] = coordinate[0];\n }\n if (coordinate[0] > extent[2]) {\n extent[2] = coordinate[0];\n }\n if (coordinate[1] < extent[1]) {\n extent[1] = coordinate[1];\n }\n if (coordinate[1] > extent[3]) {\n extent[3] = coordinate[1];\n }\n}\n\n/**\n * @param {Extent} extent Extent.\n * @param {Array<import(\"./coordinate.js\").Coordinate>} coordinates Coordinates.\n * @return {Extent} Extent.\n */\nexport function extendCoordinates(extent, coordinates) {\n for (let i = 0, ii = coordinates.length; i < ii; ++i) {\n extendCoordinate(extent, coordinates[i]);\n }\n return extent;\n}\n\n/**\n * @param {Extent} extent Extent.\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @return {Extent} Extent.\n */\nexport function extendFlatCoordinates(\n extent,\n flatCoordinates,\n offset,\n end,\n stride\n) {\n for (; offset < end; offset += stride) {\n extendXY(extent, flatCoordinates[offset], flatCoordinates[offset + 1]);\n }\n return extent;\n}\n\n/**\n * @param {Extent} extent Extent.\n * @param {Array<Array<import(\"./coordinate.js\").Coordinate>>} rings Rings.\n * @return {Extent} Extent.\n */\nexport function extendRings(extent, rings) {\n for (let i = 0, ii = rings.length; i < ii; ++i) {\n extendCoordinates(extent, rings[i]);\n }\n return extent;\n}\n\n/**\n * @param {Extent} extent Extent.\n * @param {number} x X.\n * @param {number} y Y.\n */\nexport function extendXY(extent, x, y) {\n extent[0] = Math.min(extent[0], x);\n extent[1] = Math.min(extent[1], y);\n extent[2] = Math.max(extent[2], x);\n extent[3] = Math.max(extent[3], y);\n}\n\n/**\n * This function calls `callback` for each corner of the extent. If the\n * callback returns a truthy value the function returns that value\n * immediately. Otherwise the function returns `false`.\n * @param {Extent} extent Extent.\n * @param {function(import(\"./coordinate.js\").Coordinate): S} callback Callback.\n * @return {S|boolean} Value.\n * @template S\n */\nexport function forEachCorner(extent, callback) {\n let val;\n val = callback(getBottomLeft(extent));\n if (val) {\n return val;\n }\n val = callback(getBottomRight(extent));\n if (val) {\n return val;\n }\n val = callback(getTopRight(extent));\n if (val) {\n return val;\n }\n val = callback(getTopLeft(extent));\n if (val) {\n return val;\n }\n return false;\n}\n\n/**\n * Get the size of an extent.\n * @param {Extent} extent Extent.\n * @return {number} Area.\n * @api\n */\nexport function getArea(extent) {\n let area = 0;\n if (!isEmpty(extent)) {\n area = getWidth(extent) * getHeight(extent);\n }\n return area;\n}\n\n/**\n * Get the bottom left coordinate of an extent.\n * @param {Extent} extent Extent.\n * @return {import(\"./coordinate.js\").Coordinate} Bottom left coordinate.\n * @api\n */\nexport function getBottomLeft(extent) {\n return [extent[0], extent[1]];\n}\n\n/**\n * Get the bottom right coordinate of an extent.\n * @param {Extent} extent Extent.\n * @return {import(\"./coordinate.js\").Coordinate} Bottom right coordinate.\n * @api\n */\nexport function getBottomRight(extent) {\n return [extent[2], extent[1]];\n}\n\n/**\n * Get the center coordinate of an extent.\n * @param {Extent} extent Extent.\n * @return {import(\"./coordinate.js\").Coordinate} Center.\n * @api\n */\nexport function getCenter(extent) {\n return [(extent[0] + extent[2]) / 2, (extent[1] + extent[3]) / 2];\n}\n\n/**\n * Get a corner coordinate of an extent.\n * @param {Extent} extent Extent.\n * @param {import(\"./extent/Corner.js\").default} corner Corner.\n * @return {import(\"./coordinate.js\").Coordinate} Corner coordinate.\n */\nexport function getCorner(extent, corner) {\n let coordinate;\n if (corner === Corner.BOTTOM_LEFT) {\n coordinate = getBottomLeft(extent);\n } else if (corner === Corner.BOTTOM_RIGHT) {\n coordinate = getBottomRight(extent);\n } else if (corner === Corner.TOP_LEFT) {\n coordinate = getTopLeft(extent);\n } else if (corner === Corner.TOP_RIGHT) {\n coordinate = getTopRight(extent);\n } else {\n assert(false, 13); // Invalid corner\n }\n return coordinate;\n}\n\n/**\n * @param {Extent} extent1 Extent 1.\n * @param {Extent} extent2 Extent 2.\n * @return {number} Enlarged area.\n */\nexport function getEnlargedArea(extent1, extent2) {\n const minX = Math.min(extent1[0], extent2[0]);\n const minY = Math.min(extent1[1], extent2[1]);\n const maxX = Math.max(extent1[2], extent2[2]);\n const maxY = Math.max(extent1[3], extent2[3]);\n return (maxX - minX) * (maxY - minY);\n}\n\n/**\n * @param {import(\"./coordinate.js\").Coordinate} center Center.\n * @param {number} resolution Resolution.\n * @param {number} rotation Rotation.\n * @param {import(\"./size.js\").Size} size Size.\n * @param {Extent=} opt_extent Destination extent.\n * @return {Extent} Extent.\n */\nexport function getForViewAndSize(\n center,\n resolution,\n rotation,\n size,\n opt_extent\n) {\n const dx = (resolution * size[0]) / 2;\n const dy = (resolution * size[1]) / 2;\n const cosRotation = Math.cos(rotation);\n const sinRotation = Math.sin(rotation);\n const xCos = dx * cosRotation;\n const xSin = dx * sinRotation;\n const yCos = dy * cosRotation;\n const ySin = dy * sinRotation;\n const x = center[0];\n const y = center[1];\n const x0 = x - xCos + ySin;\n const x1 = x - xCos - ySin;\n const x2 = x + xCos - ySin;\n const x3 = x + xCos + ySin;\n const y0 = y - xSin - yCos;\n const y1 = y - xSin + yCos;\n const y2 = y + xSin + yCos;\n const y3 = y + xSin - yCos;\n return createOrUpdate(\n Math.min(x0, x1, x2, x3),\n Math.min(y0, y1, y2, y3),\n Math.max(x0, x1, x2, x3),\n Math.max(y0, y1, y2, y3),\n opt_extent\n );\n}\n\n/**\n * Get the height of an extent.\n * @param {Extent} extent Extent.\n * @return {number} Height.\n * @api\n */\nexport function getHeight(extent) {\n return extent[3] - extent[1];\n}\n\n/**\n * @param {Extent} extent1 Extent 1.\n * @param {Extent} extent2 Extent 2.\n * @return {number} Intersection area.\n */\nexport function getIntersectionArea(extent1, extent2) {\n const intersection = getIntersection(extent1, extent2);\n return getArea(intersection);\n}\n\n/**\n * Get the intersection of two extents.\n * @param {Extent} extent1 Extent 1.\n * @param {Extent} extent2 Extent 2.\n * @param {Extent=} opt_extent Optional extent to populate with intersection.\n * @return {Extent} Intersecting extent.\n * @api\n */\nexport function getIntersection(extent1, extent2, opt_extent) {\n const intersection = opt_extent ? opt_extent : createEmpty();\n if (intersects(extent1, extent2)) {\n if (extent1[0] > extent2[0]) {\n intersection[0] = extent1[0];\n } else {\n intersection[0] = extent2[0];\n }\n if (extent1[1] > extent2[1]) {\n intersection[1] = extent1[1];\n } else {\n intersection[1] = extent2[1];\n }\n if (extent1[2] < extent2[2]) {\n intersection[2] = extent1[2];\n } else {\n intersection[2] = extent2[2];\n }\n if (extent1[3] < extent2[3]) {\n intersection[3] = extent1[3];\n } else {\n intersection[3] = extent2[3];\n }\n } else {\n createOrUpdateEmpty(intersection);\n }\n return intersection;\n}\n\n/**\n * @param {Extent} extent Extent.\n * @return {number} Margin.\n */\nexport function getMargin(extent) {\n return getWidth(extent) + getHeight(extent);\n}\n\n/**\n * Get the size (width, height) of an extent.\n * @param {Extent} extent The extent.\n * @return {import(\"./size.js\").Size} The extent size.\n * @api\n */\nexport function getSize(extent) {\n return [extent[2] - extent[0], extent[3] - extent[1]];\n}\n\n/**\n * Get the top left coordinate of an extent.\n * @param {Extent} extent Extent.\n * @return {import(\"./coordinate.js\").Coordinate} Top left coordinate.\n * @api\n */\nexport function getTopLeft(extent) {\n return [extent[0], extent[3]];\n}\n\n/**\n * Get the top right coordinate of an extent.\n * @param {Extent} extent Extent.\n * @return {import(\"./coordinate.js\").Coordinate} Top right coordinate.\n * @api\n */\nexport function getTopRight(extent) {\n return [extent[2], extent[3]];\n}\n\n/**\n * Get the width of an extent.\n * @param {Extent} extent Extent.\n * @return {number} Width.\n * @api\n */\nexport function getWidth(extent) {\n return extent[2] - extent[0];\n}\n\n/**\n * Determine if one extent intersects another.\n * @param {Extent} extent1 Extent 1.\n * @param {Extent} extent2 Extent.\n * @return {boolean} The two extents intersect.\n * @api\n */\nexport function intersects(extent1, extent2) {\n return (\n extent1[0] <= extent2[2] &&\n extent1[2] >= extent2[0] &&\n extent1[1] <= extent2[3] &&\n extent1[3] >= extent2[1]\n );\n}\n\n/**\n * Determine if an extent is empty.\n * @param {Extent} extent Extent.\n * @return {boolean} Is empty.\n * @api\n */\nexport function isEmpty(extent) {\n return extent[2] < extent[0] || extent[3] < extent[1];\n}\n\n/**\n * @param {Extent} extent Extent.\n * @param {Extent=} opt_extent Extent.\n * @return {Extent} Extent.\n */\nexport function returnOrUpdate(extent, opt_extent) {\n if (opt_extent) {\n opt_extent[0] = extent[0];\n opt_extent[1] = extent[1];\n opt_extent[2] = extent[2];\n opt_extent[3] = extent[3];\n return opt_extent;\n } else {\n return extent;\n }\n}\n\n/**\n * @param {Extent} extent Extent.\n * @param {number} value Value.\n */\nexport function scaleFromCenter(extent, value) {\n const deltaX = ((extent[2] - extent[0]) / 2) * (value - 1);\n const deltaY = ((extent[3] - extent[1]) / 2) * (value - 1);\n extent[0] -= deltaX;\n extent[2] += deltaX;\n extent[1] -= deltaY;\n extent[3] += deltaY;\n}\n\n/**\n * Determine if the segment between two coordinates intersects (crosses,\n * touches, or is contained by) the provided extent.\n * @param {Extent} extent The extent.\n * @param {import(\"./coordinate.js\").Coordinate} start Segment start coordinate.\n * @param {import(\"./coordinate.js\").Coordinate} end Segment end coordinate.\n * @return {boolean} The segment intersects the extent.\n */\nexport function intersectsSegment(extent, start, end) {\n let intersects = false;\n const startRel = coordinateRelationship(extent, start);\n const endRel = coordinateRelationship(extent, end);\n if (\n startRel === Relationship.INTERSECTING ||\n endRel === Relationship.INTERSECTING\n ) {\n intersects = true;\n } else {\n const minX = extent[0];\n const minY = extent[1];\n const maxX = extent[2];\n const maxY = extent[3];\n const startX = start[0];\n const startY = start[1];\n const endX = end[0];\n const endY = end[1];\n const slope = (endY - startY) / (endX - startX);\n let x, y;\n if (!!(endRel & Relationship.ABOVE) && !(startRel & Relationship.ABOVE)) {\n // potentially intersects top\n x = endX - (endY - maxY) / slope;\n intersects = x >= minX && x <= maxX;\n }\n if (\n !intersects &&\n !!(endRel & Relationship.RIGHT) &&\n !(startRel & Relationship.RIGHT)\n ) {\n // potentially intersects right\n y = endY - (endX - maxX) * slope;\n intersects = y >= minY && y <= maxY;\n }\n if (\n !intersects &&\n !!(endRel & Relationship.BELOW) &&\n !(startRel & Relationship.BELOW)\n ) {\n // potentially intersects bottom\n x = endX - (endY - minY) / slope;\n intersects = x >= minX && x <= maxX;\n }\n if (\n !intersects &&\n !!(endRel & Relationship.LEFT) &&\n !(startRel & Relationship.LEFT)\n ) {\n // potentially intersects left\n y = endY - (endX - minX) * slope;\n intersects = y >= minY && y <= maxY;\n }\n }\n return intersects;\n}\n\n/**\n * Apply a transform function to the extent.\n * @param {Extent} extent Extent.\n * @param {import(\"./proj.js\").TransformFunction} transformFn Transform function.\n * Called with `[minX, minY, maxX, maxY]` extent coordinates.\n * @param {Extent=} opt_extent Destination extent.\n * @param {number=} opt_stops Number of stops per side used for the transform.\n * By default only the corners are used.\n * @return {Extent} Extent.\n * @api\n */\nexport function applyTransform(extent, transformFn, opt_extent, opt_stops) {\n let coordinates = [];\n if (opt_stops > 1) {\n const width = extent[2] - extent[0];\n const height = extent[3] - extent[1];\n for (let i = 0; i < opt_stops; ++i) {\n coordinates.push(\n extent[0] + (width * i) / opt_stops,\n extent[1],\n extent[2],\n extent[1] + (height * i) / opt_stops,\n extent[2] - (width * i) / opt_stops,\n extent[3],\n extent[0],\n extent[3] - (height * i) / opt_stops\n );\n }\n } else {\n coordinates = [\n extent[0],\n extent[1],\n extent[2],\n extent[1],\n extent[2],\n extent[3],\n extent[0],\n extent[3],\n ];\n }\n transformFn(coordinates, coordinates, 2);\n const xs = [];\n const ys = [];\n for (let i = 0, l = coordinates.length; i < l; i += 2) {\n xs.push(coordinates[i]);\n ys.push(coordinates[i + 1]);\n }\n return _boundingExtentXYs(xs, ys, opt_extent);\n}\n\n/**\n * Modifies the provided extent in-place to be within the real world\n * extent.\n *\n * @param {Extent} extent Extent.\n * @param {import(\"./proj/Projection.js\").default} projection Projection\n * @return {Extent} The extent within the real world extent.\n */\nexport function wrapX(extent, projection) {\n const projectionExtent = projection.getExtent();\n const center = getCenter(extent);\n if (\n projection.canWrapX() &&\n (center[0] < projectionExtent[0] || center[0] >= projectionExtent[2])\n ) {\n const worldWidth = getWidth(projectionExtent);\n const worldsAway = Math.floor(\n (center[0] - projectionExtent[0]) / worldWidth\n );\n const offset = worldsAway * worldWidth;\n extent[0] -= offset;\n extent[2] -= offset;\n }\n return extent;\n}\n","/**\n * @module ol/proj/Projection\n */\nimport {METERS_PER_UNIT} from './Units.js';\n\n/**\n * @typedef {Object} Options\n * @property {string} code The SRS identifier code, e.g. `EPSG:4326`.\n * @property {import(\"./Units.js\").default|string} [units] Units. Required unless a\n * proj4 projection is defined for `code`.\n * @property {import(\"../extent.js\").Extent} [extent] The validity extent for the SRS.\n * @property {string} [axisOrientation='enu'] The axis orientation as specified in Proj4.\n * @property {boolean} [global=false] Whether the projection is valid for the whole globe.\n * @property {number} [metersPerUnit] The meters per unit for the SRS.\n * If not provided, the `units` are used to get the meters per unit from the {@link module:ol/proj/Units~METERS_PER_UNIT}\n * lookup table.\n * @property {import(\"../extent.js\").Extent} [worldExtent] The world extent for the SRS.\n * @property {function(number, import(\"../coordinate.js\").Coordinate):number} [getPointResolution]\n * Function to determine resolution at a point. The function is called with a\n * `{number}` view resolution and an `{import(\"../coordinate.js\").Coordinate}` as arguments, and returns\n * the `{number}` resolution in projection units at the passed coordinate. If this is `undefined`,\n * the default {@link module:ol/proj#getPointResolution} function will be used.\n */\n\n/**\n * @classdesc\n * Projection definition class. One of these is created for each projection\n * supported in the application and stored in the {@link module:ol/proj} namespace.\n * You can use these in applications, but this is not required, as API params\n * and options use {@link module:ol/proj~ProjectionLike} which means the simple string\n * code will suffice.\n *\n * You can use {@link module:ol/proj~get} to retrieve the object for a particular\n * projection.\n *\n * The library includes definitions for `EPSG:4326` and `EPSG:3857`, together\n * with the following aliases:\n * * `EPSG:4326`: CRS:84, urn:ogc:def:crs:EPSG:6.6:4326,\n * urn:ogc:def:crs:OGC:1.3:CRS84, urn:ogc:def:crs:OGC:2:84,\n * http://www.opengis.net/gml/srs/epsg.xml#4326,\n * urn:x-ogc:def:crs:EPSG:4326\n * * `EPSG:3857`: EPSG:102100, EPSG:102113, EPSG:900913,\n * urn:ogc:def:crs:EPSG:6.18:3:3857,\n * http://www.opengis.net/gml/srs/epsg.xml#3857\n *\n * If you use [proj4js](https://github.com/proj4js/proj4js), aliases can\n * be added using `proj4.defs()`. After all required projection definitions are\n * added, call the {@link module:ol/proj/proj4~register} function.\n *\n * @api\n */\nclass Projection {\n /**\n * @param {Options} options Projection options.\n */\n constructor(options) {\n /**\n * @private\n * @type {string}\n */\n this.code_ = options.code;\n\n /**\n * Units of projected coordinates. When set to `TILE_PIXELS`, a\n * `this.extent_` and `this.worldExtent_` must be configured properly for each\n * tile.\n * @private\n * @type {import(\"./Units.js\").default}\n */\n this.units_ = /** @type {import(\"./Units.js\").default} */ (options.units);\n\n /**\n * Validity extent of the projection in projected coordinates. For projections\n * with `TILE_PIXELS` units, this is the extent of the tile in\n * tile pixel space.\n * @private\n * @type {import(\"../extent.js\").Extent}\n */\n this.extent_ = options.extent !== undefined ? options.extent : null;\n\n /**\n * Extent of the world in EPSG:4326. For projections with\n * `TILE_PIXELS` units, this is the extent of the tile in\n * projected coordinate space.\n * @private\n * @type {import(\"../extent.js\").Extent}\n */\n this.worldExtent_ =\n options.worldExtent !== undefined ? options.worldExtent : null;\n\n /**\n * @private\n * @type {string}\n */\n this.axisOrientation_ =\n options.axisOrientation !== undefined ? options.axisOrientation : 'enu';\n\n /**\n * @private\n * @type {boolean}\n */\n this.global_ = options.global !== undefined ? options.global : false;\n\n /**\n * @private\n * @type {boolean}\n */\n this.canWrapX_ = !!(this.global_ && this.extent_);\n\n /**\n * @private\n * @type {function(number, import(\"../coordinate.js\").Coordinate):number|undefined}\n */\n this.getPointResolutionFunc_ = options.getPointResolution;\n\n /**\n * @private\n * @type {import(\"../tilegrid/TileGrid.js\").default}\n */\n this.defaultTileGrid_ = null;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.metersPerUnit_ = options.metersPerUnit;\n }\n\n /**\n * @return {boolean} The projection is suitable for wrapping the x-axis\n */\n canWrapX() {\n return this.canWrapX_;\n }\n\n /**\n * Get the code for this projection, e.g. 'EPSG:4326'.\n * @return {string} Code.\n * @api\n */\n getCode() {\n return this.code_;\n }\n\n /**\n * Get the validity extent for this projection.\n * @return {import(\"../extent.js\").Extent} Extent.\n * @api\n */\n getExtent() {\n return this.extent_;\n }\n\n /**\n * Get the units of this projection.\n * @return {import(\"./Units.js\").default} Units.\n * @api\n */\n getUnits() {\n return this.units_;\n }\n\n /**\n * Get the amount of meters per unit of this projection. If the projection is\n * not configured with `metersPerUnit` or a units identifier, the return is\n * `undefined`.\n * @return {number|undefined} Meters.\n * @api\n */\n getMetersPerUnit() {\n return this.metersPerUnit_ || METERS_PER_UNIT[this.units_];\n }\n\n /**\n * Get the world extent for this projection.\n * @return {import(\"../extent.js\").Extent} Extent.\n * @api\n */\n getWorldExtent() {\n return this.worldExtent_;\n }\n\n /**\n * Get the axis orientation of this projection.\n * Example values are:\n * enu - the default easting, northing, elevation.\n * neu - northing, easting, up - useful for \"lat/long\" geographic coordinates,\n * or south orientated transverse mercator.\n * wnu - westing, northing, up - some planetary coordinate systems have\n * \"west positive\" coordinate systems\n * @return {string} Axis orientation.\n * @api\n */\n getAxisOrientation() {\n return this.axisOrientation_;\n }\n\n /**\n * Is this projection a global projection which spans the whole world?\n * @return {boolean} Whether the projection is global.\n * @api\n */\n isGlobal() {\n return this.global_;\n }\n\n /**\n * Set if the projection is a global projection which spans the whole world\n * @param {boolean} global Whether the projection is global.\n * @api\n */\n setGlobal(global) {\n this.global_ = global;\n this.canWrapX_ = !!(global && this.extent_);\n }\n\n /**\n * @return {import(\"../tilegrid/TileGrid.js\").default} The default tile grid.\n */\n getDefaultTileGrid() {\n return this.defaultTileGrid_;\n }\n\n /**\n * @param {import(\"../tilegrid/TileGrid.js\").default} tileGrid The default tile grid.\n */\n setDefaultTileGrid(tileGrid) {\n this.defaultTileGrid_ = tileGrid;\n }\n\n /**\n * Set the validity extent for this projection.\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @api\n */\n setExtent(extent) {\n this.extent_ = extent;\n this.canWrapX_ = !!(this.global_ && extent);\n }\n\n /**\n * Set the world extent for this projection.\n * @param {import(\"../extent.js\").Extent} worldExtent World extent\n * [minlon, minlat, maxlon, maxlat].\n * @api\n */\n setWorldExtent(worldExtent) {\n this.worldExtent_ = worldExtent;\n }\n\n /**\n * Set the getPointResolution function (see {@link module:ol/proj~getPointResolution}\n * for this projection.\n * @param {function(number, import(\"../coordinate.js\").Coordinate):number} func Function\n * @api\n */\n setGetPointResolution(func) {\n this.getPointResolutionFunc_ = func;\n }\n\n /**\n * Get the custom point resolution function for this projection (if set).\n * @return {function(number, import(\"../coordinate.js\").Coordinate):number|undefined} The custom point\n * resolution function (if set).\n */\n getPointResolutionFunc() {\n return this.getPointResolutionFunc_;\n }\n}\n\nexport default Projection;\n","/**\n * @module ol/math\n */\n\n/**\n * Takes a number and clamps it to within the provided bounds.\n * @param {number} value The input number.\n * @param {number} min The minimum value to return.\n * @param {number} max The maximum value to return.\n * @return {number} The input number if it is within bounds, or the nearest\n * number within the bounds.\n */\nexport function clamp(value, min, max) {\n return Math.min(Math.max(value, min), max);\n}\n\n/**\n * Return the hyperbolic cosine of a given number. The method will use the\n * native `Math.cosh` function if it is available, otherwise the hyperbolic\n * cosine will be calculated via the reference implementation of the Mozilla\n * developer network.\n *\n * @param {number} x X.\n * @return {number} Hyperbolic cosine of x.\n */\nexport const cosh = (function () {\n // Wrapped in a iife, to save the overhead of checking for the native\n // implementation on every invocation.\n let cosh;\n if ('cosh' in Math) {\n // The environment supports the native Math.cosh function, use it…\n cosh = Math.cosh;\n } else {\n // … else, use the reference implementation of MDN:\n cosh = function (x) {\n const y = /** @type {Math} */ (Math).exp(x);\n return (y + 1 / y) / 2;\n };\n }\n return cosh;\n})();\n\n/**\n * Return the base 2 logarithm of a given number. The method will use the\n * native `Math.log2` function if it is available, otherwise the base 2\n * logarithm will be calculated via the reference implementation of the\n * Mozilla developer network.\n *\n * @param {number} x X.\n * @return {number} Base 2 logarithm of x.\n */\nexport const log2 = (function () {\n // Wrapped in a iife, to save the overhead of checking for the native\n // implementation on every invocation.\n let log2;\n if ('log2' in Math) {\n // The environment supports the native Math.log2 function, use it…\n log2 = Math.log2;\n } else {\n // … else, use the reference implementation of MDN:\n log2 = function (x) {\n return Math.log(x) * Math.LOG2E;\n };\n }\n return log2;\n})();\n\n/**\n * Returns the square of the closest distance between the point (x, y) and the\n * line segment (x1, y1) to (x2, y2).\n * @param {number} x X.\n * @param {number} y Y.\n * @param {number} x1 X1.\n * @param {number} y1 Y1.\n * @param {number} x2 X2.\n * @param {number} y2 Y2.\n * @return {number} Squared distance.\n */\nexport function squaredSegmentDistance(x, y, x1, y1, x2, y2) {\n const dx = x2 - x1;\n const dy = y2 - y1;\n if (dx !== 0 || dy !== 0) {\n const t = ((x - x1) * dx + (y - y1) * dy) / (dx * dx + dy * dy);\n if (t > 1) {\n x1 = x2;\n y1 = y2;\n } else if (t > 0) {\n x1 += dx * t;\n y1 += dy * t;\n }\n }\n return squaredDistance(x, y, x1, y1);\n}\n\n/**\n * Returns the square of the distance between the points (x1, y1) and (x2, y2).\n * @param {number} x1 X1.\n * @param {number} y1 Y1.\n * @param {number} x2 X2.\n * @param {number} y2 Y2.\n * @return {number} Squared distance.\n */\nexport function squaredDistance(x1, y1, x2, y2) {\n const dx = x2 - x1;\n const dy = y2 - y1;\n return dx * dx + dy * dy;\n}\n\n/**\n * Solves system of linear equations using Gaussian elimination method.\n *\n * @param {Array<Array<number>>} mat Augmented matrix (n x n + 1 column)\n * in row-major order.\n * @return {Array<number>} The resulting vector.\n */\nexport function solveLinearSystem(mat) {\n const n = mat.length;\n\n for (let i = 0; i < n; i++) {\n // Find max in the i-th column (ignoring i - 1 first rows)\n let maxRow = i;\n let maxEl = Math.abs(mat[i][i]);\n for (let r = i + 1; r < n; r++) {\n const absValue = Math.abs(mat[r][i]);\n if (absValue > maxEl) {\n maxEl = absValue;\n maxRow = r;\n }\n }\n\n if (maxEl === 0) {\n return null; // matrix is singular\n }\n\n // Swap max row with i-th (current) row\n const tmp = mat[maxRow];\n mat[maxRow] = mat[i];\n mat[i] = tmp;\n\n // Subtract the i-th row to make all the remaining rows 0 in the i-th column\n for (let j = i + 1; j < n; j++) {\n const coef = -mat[j][i] / mat[i][i];\n for (let k = i; k < n + 1; k++) {\n if (i == k) {\n mat[j][k] = 0;\n } else {\n mat[j][k] += coef * mat[i][k];\n }\n }\n }\n }\n\n // Solve Ax=b for upper triangular matrix A (mat)\n const x = new Array(n);\n for (let l = n - 1; l >= 0; l--) {\n x[l] = mat[l][n] / mat[l][l];\n for (let m = l - 1; m >= 0; m--) {\n mat[m][n] -= mat[m][l] * x[l];\n }\n }\n return x;\n}\n\n/**\n * Converts radians to to degrees.\n *\n * @param {number} angleInRadians Angle in radians.\n * @return {number} Angle in degrees.\n */\nexport function toDegrees(angleInRadians) {\n return (angleInRadians * 180) / Math.PI;\n}\n\n/**\n * Converts degrees to radians.\n *\n * @param {number} angleInDegrees Angle in degrees.\n * @return {number} Angle in radians.\n */\nexport function toRadians(angleInDegrees) {\n return (angleInDegrees * Math.PI) / 180;\n}\n\n/**\n * Returns the modulo of a / b, depending on the sign of b.\n *\n * @param {number} a Dividend.\n * @param {number} b Divisor.\n * @return {number} Modulo.\n */\nexport function modulo(a, b) {\n const r = a % b;\n return r * b < 0 ? r + b : r;\n}\n\n/**\n * Calculates the linearly interpolated value of x between a and b.\n *\n * @param {number} a Number\n * @param {number} b Number\n * @param {number} x Value to be interpolated.\n * @return {number} Interpolated value.\n */\nexport function lerp(a, b, x) {\n return a + x * (b - a);\n}\n","/**\n * @module ol/proj/epsg3857\n */\nimport Projection from './Projection.js';\nimport Units from './Units.js';\nimport {cosh} from '../math.js';\n\n/**\n * Radius of WGS84 sphere\n *\n * @const\n * @type {number}\n */\nexport const RADIUS = 6378137;\n\n/**\n * @const\n * @type {number}\n */\nexport const HALF_SIZE = Math.PI * RADIUS;\n\n/**\n * @const\n * @type {import(\"../extent.js\").Extent}\n */\nexport const EXTENT = [-HALF_SIZE, -HALF_SIZE, HALF_SIZE, HALF_SIZE];\n\n/**\n * @const\n * @type {import(\"../extent.js\").Extent}\n */\nexport const WORLD_EXTENT = [-180, -85, 180, 85];\n\n/**\n * @classdesc\n * Projection object for web/spherical Mercator (EPSG:3857).\n */\nclass EPSG3857Projection extends Projection {\n /**\n * @param {string} code Code.\n */\n constructor(code) {\n super({\n code: code,\n units: Units.METERS,\n extent: EXTENT,\n global: true,\n worldExtent: WORLD_EXTENT,\n getPointResolution: function (resolution, point) {\n return resolution / cosh(point[1] / RADIUS);\n },\n });\n }\n}\n\n/**\n * Projections equal to EPSG:3857.\n *\n * @const\n * @type {Array<import(\"./Projection.js\").default>}\n */\nexport const PROJECTIONS = [\n new EPSG3857Projection('EPSG:3857'),\n new EPSG3857Projection('EPSG:102100'),\n new EPSG3857Projection('EPSG:102113'),\n new EPSG3857Projection('EPSG:900913'),\n new EPSG3857Projection('urn:ogc:def:crs:EPSG:6.18:3:3857'),\n new EPSG3857Projection('urn:ogc:def:crs:EPSG::3857'),\n new EPSG3857Projection('http://www.opengis.net/gml/srs/epsg.xml#3857'),\n];\n\n/**\n * Transformation from EPSG:4326 to EPSG:3857.\n *\n * @param {Array<number>} input Input array of coordinate values.\n * @param {Array<number>=} opt_output Output array of coordinate values.\n * @param {number=} opt_dimension Dimension (default is `2`).\n * @return {Array<number>} Output array of coordinate values.\n */\nexport function fromEPSG4326(input, opt_output, opt_dimension) {\n const length = input.length;\n const dimension = opt_dimension > 1 ? opt_dimension : 2;\n let output = opt_output;\n if (output === undefined) {\n if (dimension > 2) {\n // preserve values beyond second dimension\n output = input.slice();\n } else {\n output = new Array(length);\n }\n }\n const halfSize = HALF_SIZE;\n for (let i = 0; i < length; i += dimension) {\n output[i] = (halfSize * input[i]) / 180;\n let y = RADIUS * Math.log(Math.tan((Math.PI * (+input[i + 1] + 90)) / 360));\n if (y > halfSize) {\n y = halfSize;\n } else if (y < -halfSize) {\n y = -halfSize;\n }\n output[i + 1] = y;\n }\n return output;\n}\n\n/**\n * Transformation from EPSG:3857 to EPSG:4326.\n *\n * @param {Array<number>} input Input array of coordinate values.\n * @param {Array<number>=} opt_output Output array of coordinate values.\n * @param {number=} opt_dimension Dimension (default is `2`).\n * @return {Array<number>} Output array of coordinate values.\n */\nexport function toEPSG4326(input, opt_output, opt_dimension) {\n const length = input.length;\n const dimension = opt_dimension > 1 ? opt_dimension : 2;\n let output = opt_output;\n if (output === undefined) {\n if (dimension > 2) {\n // preserve values beyond second dimension\n output = input.slice();\n } else {\n output = new Array(length);\n }\n }\n for (let i = 0; i < length; i += dimension) {\n output[i] = (180 * input[i]) / HALF_SIZE;\n output[i + 1] =\n (360 * Math.atan(Math.exp(input[i + 1] / RADIUS))) / Math.PI - 90;\n }\n return output;\n}\n","/**\n * @module ol/proj/epsg4326\n */\nimport Projection from './Projection.js';\nimport Units from './Units.js';\n\n/**\n * Semi-major radius of the WGS84 ellipsoid.\n *\n * @const\n * @type {number}\n */\nexport const RADIUS = 6378137;\n\n/**\n * Extent of the EPSG:4326 projection which is the whole world.\n *\n * @const\n * @type {import(\"../extent.js\").Extent}\n */\nexport const EXTENT = [-180, -90, 180, 90];\n\n/**\n * @const\n * @type {number}\n */\nexport const METERS_PER_UNIT = (Math.PI * RADIUS) / 180;\n\n/**\n * @classdesc\n * Projection object for WGS84 geographic coordinates (EPSG:4326).\n *\n * Note that OpenLayers does not strictly comply with the EPSG definition.\n * The EPSG registry defines 4326 as a CRS for Latitude,Longitude (y,x).\n * OpenLayers treats EPSG:4326 as a pseudo-projection, with x,y coordinates.\n */\nclass EPSG4326Projection extends Projection {\n /**\n * @param {string} code Code.\n * @param {string=} opt_axisOrientation Axis orientation.\n */\n constructor(code, opt_axisOrientation) {\n super({\n code: code,\n units: Units.DEGREES,\n extent: EXTENT,\n axisOrientation: opt_axisOrientation,\n global: true,\n metersPerUnit: METERS_PER_UNIT,\n worldExtent: EXTENT,\n });\n }\n}\n\n/**\n * Projections equal to EPSG:4326.\n *\n * @const\n * @type {Array<import(\"./Projection.js\").default>}\n */\nexport const PROJECTIONS = [\n new EPSG4326Projection('CRS:84'),\n new EPSG4326Projection('EPSG:4326', 'neu'),\n new EPSG4326Projection('urn:ogc:def:crs:EPSG::4326', 'neu'),\n new EPSG4326Projection('urn:ogc:def:crs:EPSG:6.6:4326', 'neu'),\n new EPSG4326Projection('urn:ogc:def:crs:OGC:1.3:CRS84'),\n new EPSG4326Projection('urn:ogc:def:crs:OGC:2:84'),\n new EPSG4326Projection('http://www.opengis.net/gml/srs/epsg.xml#4326', 'neu'),\n new EPSG4326Projection('urn:x-ogc:def:crs:EPSG:4326', 'neu'),\n];\n","/**\n * @module ol/proj/projections\n */\n\n/**\n * @type {Object<string, import(\"./Projection.js\").default>}\n */\nlet cache = {};\n\n/**\n * Clear the projections cache.\n */\nexport function clear() {\n cache = {};\n}\n\n/**\n * Get a cached projection by code.\n * @param {string} code The code for the projection.\n * @return {import(\"./Projection.js\").default} The projection (if cached).\n */\nexport function get(code) {\n return cache[code] || null;\n}\n\n/**\n * Add a projection to the cache.\n * @param {string} code The projection code.\n * @param {import(\"./Projection.js\").default} projection The projection to cache.\n */\nexport function add(code, projection) {\n cache[code] = projection;\n}\n","/**\n * @module ol/proj/transforms\n */\nimport {isEmpty} from '../obj.js';\n\n/**\n * @private\n * @type {!Object<string, Object<string, import(\"../proj.js\").TransformFunction>>}\n */\nlet transforms = {};\n\n/**\n * Clear the transform cache.\n */\nexport function clear() {\n transforms = {};\n}\n\n/**\n * Registers a conversion function to convert coordinates from the source\n * projection to the destination projection.\n *\n * @param {import(\"./Projection.js\").default} source Source.\n * @param {import(\"./Projection.js\").default} destination Destination.\n * @param {import(\"../proj.js\").TransformFunction} transformFn Transform.\n */\nexport function add(source, destination, transformFn) {\n const sourceCode = source.getCode();\n const destinationCode = destination.getCode();\n if (!(sourceCode in transforms)) {\n transforms[sourceCode] = {};\n }\n transforms[sourceCode][destinationCode] = transformFn;\n}\n\n/**\n * Unregisters the conversion function to convert coordinates from the source\n * projection to the destination projection. This method is used to clean up\n * cached transforms during testing.\n *\n * @param {import(\"./Projection.js\").default} source Source projection.\n * @param {import(\"./Projection.js\").default} destination Destination projection.\n * @return {import(\"../proj.js\").TransformFunction} transformFn The unregistered transform.\n */\nexport function remove(source, destination) {\n const sourceCode = source.getCode();\n const destinationCode = destination.getCode();\n const transform = transforms[sourceCode][destinationCode];\n delete transforms[sourceCode][destinationCode];\n if (isEmpty(transforms[sourceCode])) {\n delete transforms[sourceCode];\n }\n return transform;\n}\n\n/**\n * Get a transform given a source code and a destination code.\n * @param {string} sourceCode The code for the source projection.\n * @param {string} destinationCode The code for the destination projection.\n * @return {import(\"../proj.js\").TransformFunction|undefined} The transform function (if found).\n */\nexport function get(sourceCode, destinationCode) {\n let transform;\n if (sourceCode in transforms && destinationCode in transforms[sourceCode]) {\n transform = transforms[sourceCode][destinationCode];\n }\n return transform;\n}\n","/**\n * @module ol/sphere\n */\nimport GeometryType from './geom/GeometryType.js';\nimport {toDegrees, toRadians} from './math.js';\n\n/**\n * Object literal with options for the {@link getLength} or {@link getArea}\n * functions.\n * @typedef {Object} SphereMetricOptions\n * @property {import(\"./proj.js\").ProjectionLike} [projection='EPSG:3857']\n * Projection of the geometry. By default, the geometry is assumed to be in\n * Web Mercator.\n * @property {number} [radius=6371008.8] Sphere radius. By default, the\n * [mean Earth radius](https://en.wikipedia.org/wiki/Earth_radius#Mean_radius)\n * for the WGS84 ellipsoid is used.\n */\n\n/**\n * The mean Earth radius (1/3 * (2a + b)) for the WGS84 ellipsoid.\n * https://en.wikipedia.org/wiki/Earth_radius#Mean_radius\n * @type {number}\n */\nexport const DEFAULT_RADIUS = 6371008.8;\n\n/**\n * Get the great circle distance (in meters) between two geographic coordinates.\n * @param {Array} c1 Starting coordinate.\n * @param {Array} c2 Ending coordinate.\n * @param {number=} opt_radius The sphere radius to use. Defaults to the Earth's\n * mean radius using the WGS84 ellipsoid.\n * @return {number} The great circle distance between the points (in meters).\n * @api\n */\nexport function getDistance(c1, c2, opt_radius) {\n const radius = opt_radius || DEFAULT_RADIUS;\n const lat1 = toRadians(c1[1]);\n const lat2 = toRadians(c2[1]);\n const deltaLatBy2 = (lat2 - lat1) / 2;\n const deltaLonBy2 = toRadians(c2[0] - c1[0]) / 2;\n const a =\n Math.sin(deltaLatBy2) * Math.sin(deltaLatBy2) +\n Math.sin(deltaLonBy2) *\n Math.sin(deltaLonBy2) *\n Math.cos(lat1) *\n Math.cos(lat2);\n return 2 * radius * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));\n}\n\n/**\n * Get the cumulative great circle length of linestring coordinates (geographic).\n * @param {Array} coordinates Linestring coordinates.\n * @param {number} radius The sphere radius to use.\n * @return {number} The length (in meters).\n */\nfunction getLengthInternal(coordinates, radius) {\n let length = 0;\n for (let i = 0, ii = coordinates.length; i < ii - 1; ++i) {\n length += getDistance(coordinates[i], coordinates[i + 1], radius);\n }\n return length;\n}\n\n/**\n * Get the spherical length of a geometry. This length is the sum of the\n * great circle distances between coordinates. For polygons, the length is\n * the sum of all rings. For points, the length is zero. For multi-part\n * geometries, the length is the sum of the length of each part.\n * @param {import(\"./geom/Geometry.js\").default} geometry A geometry.\n * @param {SphereMetricOptions=} opt_options Options for the\n * length calculation. By default, geometries are assumed to be in 'EPSG:3857'.\n * You can change this by providing a `projection` option.\n * @return {number} The spherical length (in meters).\n * @api\n */\nexport function getLength(geometry, opt_options) {\n const options = opt_options || {};\n const radius = options.radius || DEFAULT_RADIUS;\n const projection = options.projection || 'EPSG:3857';\n const type = geometry.getType();\n if (type !== GeometryType.GEOMETRY_COLLECTION) {\n geometry = geometry.clone().transform(projection, 'EPSG:4326');\n }\n let length = 0;\n let coordinates, coords, i, ii, j, jj;\n switch (type) {\n case GeometryType.POINT:\n case GeometryType.MULTI_POINT: {\n break;\n }\n case GeometryType.LINE_STRING:\n case GeometryType.LINEAR_RING: {\n coordinates = /** @type {import(\"./geom/SimpleGeometry.js\").default} */ (geometry).getCoordinates();\n length = getLengthInternal(coordinates, radius);\n break;\n }\n case GeometryType.MULTI_LINE_STRING:\n case GeometryType.POLYGON: {\n coordinates = /** @type {import(\"./geom/SimpleGeometry.js\").default} */ (geometry).getCoordinates();\n for (i = 0, ii = coordinates.length; i < ii; ++i) {\n length += getLengthInternal(coordinates[i], radius);\n }\n break;\n }\n case GeometryType.MULTI_POLYGON: {\n coordinates = /** @type {import(\"./geom/SimpleGeometry.js\").default} */ (geometry).getCoordinates();\n for (i = 0, ii = coordinates.length; i < ii; ++i) {\n coords = coordinates[i];\n for (j = 0, jj = coords.length; j < jj; ++j) {\n length += getLengthInternal(coords[j], radius);\n }\n }\n break;\n }\n case GeometryType.GEOMETRY_COLLECTION: {\n const geometries = /** @type {import(\"./geom/GeometryCollection.js\").default} */ (geometry).getGeometries();\n for (i = 0, ii = geometries.length; i < ii; ++i) {\n length += getLength(geometries[i], opt_options);\n }\n break;\n }\n default: {\n throw new Error('Unsupported geometry type: ' + type);\n }\n }\n return length;\n}\n\n/**\n * Returns the spherical area for a list of coordinates.\n *\n * [Reference](https://trs-new.jpl.nasa.gov/handle/2014/40409)\n * Robert. G. Chamberlain and William H. Duquette, \"Some Algorithms for\n * Polygons on a Sphere\", JPL Publication 07-03, Jet Propulsion\n * Laboratory, Pasadena, CA, June 2007\n *\n * @param {Array<import(\"./coordinate.js\").Coordinate>} coordinates List of coordinates of a linear\n * ring. If the ring is oriented clockwise, the area will be positive,\n * otherwise it will be negative.\n * @param {number} radius The sphere radius.\n * @return {number} Area (in square meters).\n */\nfunction getAreaInternal(coordinates, radius) {\n let area = 0;\n const len = coordinates.length;\n let x1 = coordinates[len - 1][0];\n let y1 = coordinates[len - 1][1];\n for (let i = 0; i < len; i++) {\n const x2 = coordinates[i][0];\n const y2 = coordinates[i][1];\n area +=\n toRadians(x2 - x1) *\n (2 + Math.sin(toRadians(y1)) + Math.sin(toRadians(y2)));\n x1 = x2;\n y1 = y2;\n }\n return (area * radius * radius) / 2.0;\n}\n\n/**\n * Get the spherical area of a geometry. This is the area (in meters) assuming\n * that polygon edges are segments of great circles on a sphere.\n * @param {import(\"./geom/Geometry.js\").default} geometry A geometry.\n * @param {SphereMetricOptions=} opt_options Options for the area\n * calculation. By default, geometries are assumed to be in 'EPSG:3857'.\n * You can change this by providing a `projection` option.\n * @return {number} The spherical area (in square meters).\n * @api\n */\nexport function getArea(geometry, opt_options) {\n const options = opt_options || {};\n const radius = options.radius || DEFAULT_RADIUS;\n const projection = options.projection || 'EPSG:3857';\n const type = geometry.getType();\n if (type !== GeometryType.GEOMETRY_COLLECTION) {\n geometry = geometry.clone().transform(projection, 'EPSG:4326');\n }\n let area = 0;\n let coordinates, coords, i, ii, j, jj;\n switch (type) {\n case GeometryType.POINT:\n case GeometryType.MULTI_POINT:\n case GeometryType.LINE_STRING:\n case GeometryType.MULTI_LINE_STRING:\n case GeometryType.LINEAR_RING: {\n break;\n }\n case GeometryType.POLYGON: {\n coordinates = /** @type {import(\"./geom/Polygon.js\").default} */ (geometry).getCoordinates();\n area = Math.abs(getAreaInternal(coordinates[0], radius));\n for (i = 1, ii = coordinates.length; i < ii; ++i) {\n area -= Math.abs(getAreaInternal(coordinates[i], radius));\n }\n break;\n }\n case GeometryType.MULTI_POLYGON: {\n coordinates = /** @type {import(\"./geom/SimpleGeometry.js\").default} */ (geometry).getCoordinates();\n for (i = 0, ii = coordinates.length; i < ii; ++i) {\n coords = coordinates[i];\n area += Math.abs(getAreaInternal(coords[0], radius));\n for (j = 1, jj = coords.length; j < jj; ++j) {\n area -= Math.abs(getAreaInternal(coords[j], radius));\n }\n }\n break;\n }\n case GeometryType.GEOMETRY_COLLECTION: {\n const geometries = /** @type {import(\"./geom/GeometryCollection.js\").default} */ (geometry).getGeometries();\n for (i = 0, ii = geometries.length; i < ii; ++i) {\n area += getArea(geometries[i], opt_options);\n }\n break;\n }\n default: {\n throw new Error('Unsupported geometry type: ' + type);\n }\n }\n return area;\n}\n\n/**\n * Returns the coordinate at the given distance and bearing from `c1`.\n *\n * @param {import(\"./coordinate.js\").Coordinate} c1 The origin point (`[lon, lat]` in degrees).\n * @param {number} distance The great-circle distance between the origin\n * point and the target point.\n * @param {number} bearing The bearing (in radians).\n * @param {number=} opt_radius The sphere radius to use. Defaults to the Earth's\n * mean radius using the WGS84 ellipsoid.\n * @return {import(\"./coordinate.js\").Coordinate} The target point.\n */\nexport function offset(c1, distance, bearing, opt_radius) {\n const radius = opt_radius || DEFAULT_RADIUS;\n const lat1 = toRadians(c1[1]);\n const lon1 = toRadians(c1[0]);\n const dByR = distance / radius;\n const lat = Math.asin(\n Math.sin(lat1) * Math.cos(dByR) +\n Math.cos(lat1) * Math.sin(dByR) * Math.cos(bearing)\n );\n const lon =\n lon1 +\n Math.atan2(\n Math.sin(bearing) * Math.sin(dByR) * Math.cos(lat1),\n Math.cos(dByR) - Math.sin(lat1) * Math.sin(lat)\n );\n return [toDegrees(lon), toDegrees(lat)];\n}\n","/**\n * @module ol/string\n */\n\n/**\n * @param {number} number Number to be formatted\n * @param {number} width The desired width\n * @param {number=} opt_precision Precision of the output string (i.e. number of decimal places)\n * @returns {string} Formatted string\n */\nexport function padNumber(number, width, opt_precision) {\n const numberString =\n opt_precision !== undefined ? number.toFixed(opt_precision) : '' + number;\n let decimal = numberString.indexOf('.');\n decimal = decimal === -1 ? numberString.length : decimal;\n return decimal > width\n ? numberString\n : new Array(1 + width - decimal).join('0') + numberString;\n}\n\n/**\n * Adapted from https://github.com/omichelsen/compare-versions/blob/master/index.js\n * @param {string|number} v1 First version\n * @param {string|number} v2 Second version\n * @returns {number} Value\n */\nexport function compareVersions(v1, v2) {\n const s1 = ('' + v1).split('.');\n const s2 = ('' + v2).split('.');\n\n for (let i = 0; i < Math.max(s1.length, s2.length); i++) {\n const n1 = parseInt(s1[i] || '0', 10);\n const n2 = parseInt(s2[i] || '0', 10);\n\n if (n1 > n2) {\n return 1;\n }\n if (n2 > n1) {\n return -1;\n }\n }\n\n return 0;\n}\n","/**\n * @module ol/coordinate\n */\nimport {getWidth} from './extent.js';\nimport {modulo} from './math.js';\nimport {padNumber} from './string.js';\n\n/**\n * An array of numbers representing an xy coordinate. Example: `[16, 48]`.\n * @typedef {Array<number>} Coordinate\n * @api\n */\n\n/**\n * A function that takes a {@link module:ol/coordinate~Coordinate} and\n * transforms it into a `{string}`.\n *\n * @typedef {function((Coordinate|undefined)): string} CoordinateFormat\n * @api\n */\n\n/**\n * Add `delta` to `coordinate`. `coordinate` is modified in place and returned\n * by the function.\n *\n * Example:\n *\n * import {add} from 'ol/coordinate';\n *\n * var coord = [7.85, 47.983333];\n * add(coord, [-2, 4]);\n * // coord is now [5.85, 51.983333]\n *\n * @param {Coordinate} coordinate Coordinate.\n * @param {Coordinate} delta Delta.\n * @return {Coordinate} The input coordinate adjusted by\n * the given delta.\n * @api\n */\nexport function add(coordinate, delta) {\n coordinate[0] += +delta[0];\n coordinate[1] += +delta[1];\n return coordinate;\n}\n\n/**\n * Calculates the point closest to the passed coordinate on the passed circle.\n *\n * @param {Coordinate} coordinate The coordinate.\n * @param {import(\"./geom/Circle.js\").default} circle The circle.\n * @return {Coordinate} Closest point on the circumference.\n */\nexport function closestOnCircle(coordinate, circle) {\n const r = circle.getRadius();\n const center = circle.getCenter();\n const x0 = center[0];\n const y0 = center[1];\n const x1 = coordinate[0];\n const y1 = coordinate[1];\n\n let dx = x1 - x0;\n const dy = y1 - y0;\n if (dx === 0 && dy === 0) {\n dx = 1;\n }\n const d = Math.sqrt(dx * dx + dy * dy);\n\n const x = x0 + (r * dx) / d;\n const y = y0 + (r * dy) / d;\n\n return [x, y];\n}\n\n/**\n * Calculates the point closest to the passed coordinate on the passed segment.\n * This is the foot of the perpendicular of the coordinate to the segment when\n * the foot is on the segment, or the closest segment coordinate when the foot\n * is outside the segment.\n *\n * @param {Coordinate} coordinate The coordinate.\n * @param {Array<Coordinate>} segment The two coordinates\n * of the segment.\n * @return {Coordinate} The foot of the perpendicular of\n * the coordinate to the segment.\n */\nexport function closestOnSegment(coordinate, segment) {\n const x0 = coordinate[0];\n const y0 = coordinate[1];\n const start = segment[0];\n const end = segment[1];\n const x1 = start[0];\n const y1 = start[1];\n const x2 = end[0];\n const y2 = end[1];\n const dx = x2 - x1;\n const dy = y2 - y1;\n const along =\n dx === 0 && dy === 0\n ? 0\n : (dx * (x0 - x1) + dy * (y0 - y1)) / (dx * dx + dy * dy || 0);\n let x, y;\n if (along <= 0) {\n x = x1;\n y = y1;\n } else if (along >= 1) {\n x = x2;\n y = y2;\n } else {\n x = x1 + along * dx;\n y = y1 + along * dy;\n }\n return [x, y];\n}\n\n/**\n * Returns a {@link module:ol/coordinate~CoordinateFormat} function that can be\n * used to format\n * a {Coordinate} to a string.\n *\n * Example without specifying the fractional digits:\n *\n * import {createStringXY} from 'ol/coordinate';\n *\n * var coord = [7.85, 47.983333];\n * var stringifyFunc = createStringXY();\n * var out = stringifyFunc(coord);\n * // out is now '8, 48'\n *\n * Example with explicitly specifying 2 fractional digits:\n *\n * import {createStringXY} from 'ol/coordinate';\n *\n * var coord = [7.85, 47.983333];\n * var stringifyFunc = createStringXY(2);\n * var out = stringifyFunc(coord);\n * // out is now '7.85, 47.98'\n *\n * @param {number=} opt_fractionDigits The number of digits to include\n * after the decimal point. Default is `0`.\n * @return {CoordinateFormat} Coordinate format.\n * @api\n */\nexport function createStringXY(opt_fractionDigits) {\n return (\n /**\n * @param {Coordinate} coordinate Coordinate.\n * @return {string} String XY.\n */\n function (coordinate) {\n return toStringXY(coordinate, opt_fractionDigits);\n }\n );\n}\n\n/**\n * @param {string} hemispheres Hemispheres.\n * @param {number} degrees Degrees.\n * @param {number=} opt_fractionDigits The number of digits to include\n * after the decimal point. Default is `0`.\n * @return {string} String.\n */\nexport function degreesToStringHDMS(hemispheres, degrees, opt_fractionDigits) {\n const normalizedDegrees = modulo(degrees + 180, 360) - 180;\n const x = Math.abs(3600 * normalizedDegrees);\n const dflPrecision = opt_fractionDigits || 0;\n const precision = Math.pow(10, dflPrecision);\n\n let deg = Math.floor(x / 3600);\n let min = Math.floor((x - deg * 3600) / 60);\n let sec = x - deg * 3600 - min * 60;\n sec = Math.ceil(sec * precision) / precision;\n\n if (sec >= 60) {\n sec = 0;\n min += 1;\n }\n\n if (min >= 60) {\n min = 0;\n deg += 1;\n }\n\n return (\n deg +\n '\\u00b0 ' +\n padNumber(min, 2) +\n '\\u2032 ' +\n padNumber(sec, 2, dflPrecision) +\n '\\u2033' +\n (normalizedDegrees == 0\n ? ''\n : ' ' + hemispheres.charAt(normalizedDegrees < 0 ? 1 : 0))\n );\n}\n\n/**\n * Transforms the given {@link module:ol/coordinate~Coordinate} to a string\n * using the given string template. The strings `{x}` and `{y}` in the template\n * will be replaced with the first and second coordinate values respectively.\n *\n * Example without specifying the fractional digits:\n *\n * import {format} from 'ol/coordinate';\n *\n * var coord = [7.85, 47.983333];\n * var template = 'Coordinate is ({x}|{y}).';\n * var out = format(coord, template);\n * // out is now 'Coordinate is (8|48).'\n *\n * Example explicitly specifying the fractional digits:\n *\n * import {format} from 'ol/coordinate';\n *\n * var coord = [7.85, 47.983333];\n * var template = 'Coordinate is ({x}|{y}).';\n * var out = format(coord, template, 2);\n * // out is now 'Coordinate is (7.85|47.98).'\n *\n * @param {Coordinate} coordinate Coordinate.\n * @param {string} template A template string with `{x}` and `{y}` placeholders\n * that will be replaced by first and second coordinate values.\n * @param {number=} opt_fractionDigits The number of digits to include\n * after the decimal point. Default is `0`.\n * @return {string} Formatted coordinate.\n * @api\n */\nexport function format(coordinate, template, opt_fractionDigits) {\n if (coordinate) {\n return template\n .replace('{x}', coordinate[0].toFixed(opt_fractionDigits))\n .replace('{y}', coordinate[1].toFixed(opt_fractionDigits));\n } else {\n return '';\n }\n}\n\n/**\n * @param {Coordinate} coordinate1 First coordinate.\n * @param {Coordinate} coordinate2 Second coordinate.\n * @return {boolean} The two coordinates are equal.\n */\nexport function equals(coordinate1, coordinate2) {\n let equals = true;\n for (let i = coordinate1.length - 1; i >= 0; --i) {\n if (coordinate1[i] != coordinate2[i]) {\n equals = false;\n break;\n }\n }\n return equals;\n}\n\n/**\n * Rotate `coordinate` by `angle`. `coordinate` is modified in place and\n * returned by the function.\n *\n * Example:\n *\n * import {rotate} from 'ol/coordinate';\n *\n * var coord = [7.85, 47.983333];\n * var rotateRadians = Math.PI / 2; // 90 degrees\n * rotate(coord, rotateRadians);\n * // coord is now [-47.983333, 7.85]\n *\n * @param {Coordinate} coordinate Coordinate.\n * @param {number} angle Angle in radian.\n * @return {Coordinate} Coordinate.\n * @api\n */\nexport function rotate(coordinate, angle) {\n const cosAngle = Math.cos(angle);\n const sinAngle = Math.sin(angle);\n const x = coordinate[0] * cosAngle - coordinate[1] * sinAngle;\n const y = coordinate[1] * cosAngle + coordinate[0] * sinAngle;\n coordinate[0] = x;\n coordinate[1] = y;\n return coordinate;\n}\n\n/**\n * Scale `coordinate` by `scale`. `coordinate` is modified in place and returned\n * by the function.\n *\n * Example:\n *\n * import {scale as scaleCoordinate} from 'ol/coordinate';\n *\n * var coord = [7.85, 47.983333];\n * var scale = 1.2;\n * scaleCoordinate(coord, scale);\n * // coord is now [9.42, 57.5799996]\n *\n * @param {Coordinate} coordinate Coordinate.\n * @param {number} scale Scale factor.\n * @return {Coordinate} Coordinate.\n */\nexport function scale(coordinate, scale) {\n coordinate[0] *= scale;\n coordinate[1] *= scale;\n return coordinate;\n}\n\n/**\n * @param {Coordinate} coord1 First coordinate.\n * @param {Coordinate} coord2 Second coordinate.\n * @return {number} Squared distance between coord1 and coord2.\n */\nexport function squaredDistance(coord1, coord2) {\n const dx = coord1[0] - coord2[0];\n const dy = coord1[1] - coord2[1];\n return dx * dx + dy * dy;\n}\n\n/**\n * @param {Coordinate} coord1 First coordinate.\n * @param {Coordinate} coord2 Second coordinate.\n * @return {number} Distance between coord1 and coord2.\n */\nexport function distance(coord1, coord2) {\n return Math.sqrt(squaredDistance(coord1, coord2));\n}\n\n/**\n * Calculate the squared distance from a coordinate to a line segment.\n *\n * @param {Coordinate} coordinate Coordinate of the point.\n * @param {Array<Coordinate>} segment Line segment (2\n * coordinates).\n * @return {number} Squared distance from the point to the line segment.\n */\nexport function squaredDistanceToSegment(coordinate, segment) {\n return squaredDistance(coordinate, closestOnSegment(coordinate, segment));\n}\n\n/**\n * Format a geographic coordinate with the hemisphere, degrees, minutes, and\n * seconds.\n *\n * Example without specifying fractional digits:\n *\n * import {toStringHDMS} from 'ol/coordinate';\n *\n * var coord = [7.85, 47.983333];\n * var out = toStringHDMS(coord);\n * // out is now '47° 58′ 60″ N 7° 50′ 60″ E'\n *\n * Example explicitly specifying 1 fractional digit:\n *\n * import {toStringHDMS} from 'ol/coordinate';\n *\n * var coord = [7.85, 47.983333];\n * var out = toStringHDMS(coord, 1);\n * // out is now '47° 58′ 60.0″ N 7° 50′ 60.0″ E'\n *\n * @param {Coordinate} coordinate Coordinate.\n * @param {number=} opt_fractionDigits The number of digits to include\n * after the decimal point. Default is `0`.\n * @return {string} Hemisphere, degrees, minutes and seconds.\n * @api\n */\nexport function toStringHDMS(coordinate, opt_fractionDigits) {\n if (coordinate) {\n return (\n degreesToStringHDMS('NS', coordinate[1], opt_fractionDigits) +\n ' ' +\n degreesToStringHDMS('EW', coordinate[0], opt_fractionDigits)\n );\n } else {\n return '';\n }\n}\n\n/**\n * Format a coordinate as a comma delimited string.\n *\n * Example without specifying fractional digits:\n *\n * import {toStringXY} from 'ol/coordinate';\n *\n * var coord = [7.85, 47.983333];\n * var out = toStringXY(coord);\n * // out is now '8, 48'\n *\n * Example explicitly specifying 1 fractional digit:\n *\n * import {toStringXY} from 'ol/coordinate';\n *\n * var coord = [7.85, 47.983333];\n * var out = toStringXY(coord, 1);\n * // out is now '7.8, 48.0'\n *\n * @param {Coordinate} coordinate Coordinate.\n * @param {number=} opt_fractionDigits The number of digits to include\n * after the decimal point. Default is `0`.\n * @return {string} XY.\n * @api\n */\nexport function toStringXY(coordinate, opt_fractionDigits) {\n return format(coordinate, '{x}, {y}', opt_fractionDigits);\n}\n\n/**\n * Modifies the provided coordinate in-place to be within the real world\n * extent. The lower projection extent boundary is inclusive, the upper one\n * exclusive.\n *\n * @param {Coordinate} coordinate Coordinate.\n * @param {import(\"./proj/Projection.js\").default} projection Projection.\n * @return {Coordinate} The coordinate within the real world extent.\n */\nexport function wrapX(coordinate, projection) {\n if (projection.canWrapX()) {\n const worldWidth = getWidth(projection.getExtent());\n const worldsAway = getWorldsAway(coordinate, projection, worldWidth);\n if (worldsAway) {\n coordinate[0] -= worldsAway * worldWidth;\n }\n }\n return coordinate;\n}\n/**\n * @param {Coordinate} coordinate Coordinate.\n * @param {import(\"./proj/Projection.js\").default} projection Projection.\n * @param {number=} opt_sourceExtentWidth Width of the source extent.\n * @return {number} Offset in world widths.\n */\nexport function getWorldsAway(coordinate, projection, opt_sourceExtentWidth) {\n const projectionExtent = projection.getExtent();\n let worldsAway = 0;\n if (\n projection.canWrapX() &&\n (coordinate[0] < projectionExtent[0] || coordinate[0] > projectionExtent[2])\n ) {\n const sourceExtentWidth =\n opt_sourceExtentWidth || getWidth(projectionExtent);\n worldsAway = Math.floor(\n (coordinate[0] - projectionExtent[0]) / sourceExtentWidth\n );\n }\n return worldsAway;\n}\n","/**\n * @module ol/proj\n */\n\n/**\n * The ol/proj module stores:\n * * a list of {@link module:ol/proj/Projection}\n * objects, one for each projection supported by the application\n * * a list of transform functions needed to convert coordinates in one projection\n * into another.\n *\n * The static functions are the methods used to maintain these.\n * Each transform function can handle not only simple coordinate pairs, but also\n * large arrays of coordinates such as vector geometries.\n *\n * When loaded, the library adds projection objects for EPSG:4326 (WGS84\n * geographic coordinates) and EPSG:3857 (Web or Spherical Mercator, as used\n * for example by Bing Maps or OpenStreetMap), together with the relevant\n * transform functions.\n *\n * Additional transforms may be added by using the http://proj4js.org/\n * library (version 2.2 or later). You can use the full build supplied by\n * Proj4js, or create a custom build to support those projections you need; see\n * the Proj4js website for how to do this. You also need the Proj4js definitions\n * for the required projections. These definitions can be obtained from\n * https://epsg.io/, and are a JS function, so can be loaded in a script\n * tag (as in the examples) or pasted into your application.\n *\n * After all required projection definitions are added to proj4's registry (by\n * using `proj4.defs()`), simply call `register(proj4)` from the `ol/proj/proj4`\n * package. Existing transforms are not changed by this function. See\n * examples/wms-image-custom-proj for an example of this.\n *\n * Additional projection definitions can be registered with `proj4.defs()` any\n * time. Just make sure to call `register(proj4)` again; for example, with user-supplied data where you don't\n * know in advance what projections are needed, you can initially load minimal\n * support and then load whichever are requested.\n *\n * Note that Proj4js does not support projection extents. If you want to add\n * one for creating default tile grids, you can add it after the Projection\n * object has been created with `setExtent`, for example,\n * `get('EPSG:1234').setExtent(extent)`.\n *\n * In addition to Proj4js support, any transform functions can be added with\n * {@link module:ol/proj~addCoordinateTransforms}. To use this, you must first create\n * a {@link module:ol/proj/Projection} object for the new projection and add it with\n * {@link module:ol/proj~addProjection}. You can then add the forward and inverse\n * functions with {@link module:ol/proj~addCoordinateTransforms}. See\n * examples/wms-custom-proj for an example of this.\n *\n * Note that if no transforms are needed and you only need to define the\n * projection, just add a {@link module:ol/proj/Projection} with\n * {@link module:ol/proj~addProjection}. See examples/wms-no-proj for an example of\n * this.\n */\nimport Projection from './proj/Projection.js';\nimport Units, {METERS_PER_UNIT} from './proj/Units.js';\nimport {\n PROJECTIONS as EPSG3857_PROJECTIONS,\n fromEPSG4326,\n toEPSG4326,\n} from './proj/epsg3857.js';\nimport {PROJECTIONS as EPSG4326_PROJECTIONS} from './proj/epsg4326.js';\nimport {\n add as addProj,\n clear as clearProj,\n get as getProj,\n} from './proj/projections.js';\nimport {\n add as addTransformFunc,\n clear as clearTransformFuncs,\n get as getTransformFunc,\n} from './proj/transforms.js';\nimport {applyTransform, getWidth} from './extent.js';\nimport {clamp, modulo} from './math.js';\nimport {getDistance} from './sphere.js';\nimport {getWorldsAway} from './coordinate.js';\n\n/**\n * A projection as {@link module:ol/proj/Projection}, SRS identifier\n * string or undefined.\n * @typedef {Projection|string|undefined} ProjectionLike\n * @api\n */\n\n/**\n * A transform function accepts an array of input coordinate values, an optional\n * output array, and an optional dimension (default should be 2). The function\n * transforms the input coordinate values, populates the output array, and\n * returns the output array.\n *\n * @typedef {function(Array<number>, Array<number>=, number=): Array<number>} TransformFunction\n * @api\n */\n\nexport {METERS_PER_UNIT};\n\nexport {Projection};\n\n/**\n * @param {Array<number>} input Input coordinate array.\n * @param {Array<number>=} opt_output Output array of coordinate values.\n * @param {number=} opt_dimension Dimension.\n * @return {Array<number>} Output coordinate array (new array, same coordinate\n * values).\n */\nexport function cloneTransform(input, opt_output, opt_dimension) {\n let output;\n if (opt_output !== undefined) {\n for (let i = 0, ii = input.length; i < ii; ++i) {\n opt_output[i] = input[i];\n }\n output = opt_output;\n } else {\n output = input.slice();\n }\n return output;\n}\n\n/**\n * @param {Array<number>} input Input coordinate array.\n * @param {Array<number>=} opt_output Output array of coordinate values.\n * @param {number=} opt_dimension Dimension.\n * @return {Array<number>} Input coordinate array (same array as input).\n */\nexport function identityTransform(input, opt_output, opt_dimension) {\n if (opt_output !== undefined && input !== opt_output) {\n for (let i = 0, ii = input.length; i < ii; ++i) {\n opt_output[i] = input[i];\n }\n input = opt_output;\n }\n return input;\n}\n\n/**\n * Add a Projection object to the list of supported projections that can be\n * looked up by their code.\n *\n * @param {Projection} projection Projection instance.\n * @api\n */\nexport function addProjection(projection) {\n addProj(projection.getCode(), projection);\n addTransformFunc(projection, projection, cloneTransform);\n}\n\n/**\n * @param {Array<Projection>} projections Projections.\n */\nexport function addProjections(projections) {\n projections.forEach(addProjection);\n}\n\n/**\n * Fetches a Projection object for the code specified.\n *\n * @param {ProjectionLike} projectionLike Either a code string which is\n * a combination of authority and identifier such as \"EPSG:4326\", or an\n * existing projection object, or undefined.\n * @return {Projection} Projection object, or null if not in list.\n * @api\n */\nexport function get(projectionLike) {\n return typeof projectionLike === 'string'\n ? getProj(/** @type {string} */ (projectionLike))\n : /** @type {Projection} */ (projectionLike) || null;\n}\n\n/**\n * Get the resolution of the point in degrees or distance units.\n * For projections with degrees as the unit this will simply return the\n * provided resolution. For other projections the point resolution is\n * by default estimated by transforming the 'point' pixel to EPSG:4326,\n * measuring its width and height on the normal sphere,\n * and taking the average of the width and height.\n * A custom function can be provided for a specific projection, either\n * by setting the `getPointResolution` option in the\n * {@link module:ol/proj/Projection~Projection} constructor or by using\n * {@link module:ol/proj/Projection~Projection#setGetPointResolution} to change an existing\n * projection object.\n * @param {ProjectionLike} projection The projection.\n * @param {number} resolution Nominal resolution in projection units.\n * @param {import(\"./coordinate.js\").Coordinate} point Point to find adjusted resolution at.\n * @param {import(\"./proj/Units.js\").default=} opt_units Units to get the point resolution in.\n * Default is the projection's units.\n * @return {number} Point resolution.\n * @api\n */\nexport function getPointResolution(projection, resolution, point, opt_units) {\n projection = get(projection);\n let pointResolution;\n const getter = projection.getPointResolutionFunc();\n if (getter) {\n pointResolution = getter(resolution, point);\n if (opt_units && opt_units !== projection.getUnits()) {\n const metersPerUnit = projection.getMetersPerUnit();\n if (metersPerUnit) {\n pointResolution =\n (pointResolution * metersPerUnit) / METERS_PER_UNIT[opt_units];\n }\n }\n } else {\n const units = projection.getUnits();\n if ((units == Units.DEGREES && !opt_units) || opt_units == Units.DEGREES) {\n pointResolution = resolution;\n } else {\n // Estimate point resolution by transforming the center pixel to EPSG:4326,\n // measuring its width and height on the normal sphere, and taking the\n // average of the width and height.\n const toEPSG4326 = getTransformFromProjections(\n projection,\n get('EPSG:4326')\n );\n let vertices = [\n point[0] - resolution / 2,\n point[1],\n point[0] + resolution / 2,\n point[1],\n point[0],\n point[1] - resolution / 2,\n point[0],\n point[1] + resolution / 2,\n ];\n vertices = toEPSG4326(vertices, vertices, 2);\n const width = getDistance(vertices.slice(0, 2), vertices.slice(2, 4));\n const height = getDistance(vertices.slice(4, 6), vertices.slice(6, 8));\n pointResolution = (width + height) / 2;\n const metersPerUnit = opt_units\n ? METERS_PER_UNIT[opt_units]\n : projection.getMetersPerUnit();\n if (metersPerUnit !== undefined) {\n pointResolution /= metersPerUnit;\n }\n }\n }\n return pointResolution;\n}\n\n/**\n * Registers transformation functions that don't alter coordinates. Those allow\n * to transform between projections with equal meaning.\n *\n * @param {Array<Projection>} projections Projections.\n * @api\n */\nexport function addEquivalentProjections(projections) {\n addProjections(projections);\n projections.forEach(function (source) {\n projections.forEach(function (destination) {\n if (source !== destination) {\n addTransformFunc(source, destination, cloneTransform);\n }\n });\n });\n}\n\n/**\n * Registers transformation functions to convert coordinates in any projection\n * in projection1 to any projection in projection2.\n *\n * @param {Array<Projection>} projections1 Projections with equal\n * meaning.\n * @param {Array<Projection>} projections2 Projections with equal\n * meaning.\n * @param {TransformFunction} forwardTransform Transformation from any\n * projection in projection1 to any projection in projection2.\n * @param {TransformFunction} inverseTransform Transform from any projection\n * in projection2 to any projection in projection1..\n */\nexport function addEquivalentTransforms(\n projections1,\n projections2,\n forwardTransform,\n inverseTransform\n) {\n projections1.forEach(function (projection1) {\n projections2.forEach(function (projection2) {\n addTransformFunc(projection1, projection2, forwardTransform);\n addTransformFunc(projection2, projection1, inverseTransform);\n });\n });\n}\n\n/**\n * Clear all cached projections and transforms.\n */\nexport function clearAllProjections() {\n clearProj();\n clearTransformFuncs();\n}\n\n/**\n * @param {Projection|string|undefined} projection Projection.\n * @param {string} defaultCode Default code.\n * @return {Projection} Projection.\n */\nexport function createProjection(projection, defaultCode) {\n if (!projection) {\n return get(defaultCode);\n } else if (typeof projection === 'string') {\n return get(projection);\n } else {\n return /** @type {Projection} */ (projection);\n }\n}\n\n/**\n * Creates a {@link module:ol/proj~TransformFunction} from a simple 2D coordinate transform\n * function.\n * @param {function(import(\"./coordinate.js\").Coordinate): import(\"./coordinate.js\").Coordinate} coordTransform Coordinate\n * transform.\n * @return {TransformFunction} Transform function.\n */\nexport function createTransformFromCoordinateTransform(coordTransform) {\n return (\n /**\n * @param {Array<number>} input Input.\n * @param {Array<number>=} opt_output Output.\n * @param {number=} opt_dimension Dimension.\n * @return {Array<number>} Output.\n */\n function (input, opt_output, opt_dimension) {\n const length = input.length;\n const dimension = opt_dimension !== undefined ? opt_dimension : 2;\n const output = opt_output !== undefined ? opt_output : new Array(length);\n for (let i = 0; i < length; i += dimension) {\n const point = coordTransform([input[i], input[i + 1]]);\n output[i] = point[0];\n output[i + 1] = point[1];\n for (let j = dimension - 1; j >= 2; --j) {\n output[i + j] = input[i + j];\n }\n }\n return output;\n }\n );\n}\n\n/**\n * Registers coordinate transform functions to convert coordinates between the\n * source projection and the destination projection.\n * The forward and inverse functions convert coordinate pairs; this function\n * converts these into the functions used internally which also handle\n * extents and coordinate arrays.\n *\n * @param {ProjectionLike} source Source projection.\n * @param {ProjectionLike} destination Destination projection.\n * @param {function(import(\"./coordinate.js\").Coordinate): import(\"./coordinate.js\").Coordinate} forward The forward transform\n * function (that is, from the source projection to the destination\n * projection) that takes a {@link module:ol/coordinate~Coordinate} as argument and returns\n * the transformed {@link module:ol/coordinate~Coordinate}.\n * @param {function(import(\"./coordinate.js\").Coordinate): import(\"./coordinate.js\").Coordinate} inverse The inverse transform\n * function (that is, from the destination projection to the source\n * projection) that takes a {@link module:ol/coordinate~Coordinate} as argument and returns\n * the transformed {@link module:ol/coordinate~Coordinate}.\n * @api\n */\nexport function addCoordinateTransforms(source, destination, forward, inverse) {\n const sourceProj = get(source);\n const destProj = get(destination);\n addTransformFunc(\n sourceProj,\n destProj,\n createTransformFromCoordinateTransform(forward)\n );\n addTransformFunc(\n destProj,\n sourceProj,\n createTransformFromCoordinateTransform(inverse)\n );\n}\n\n/**\n * Transforms a coordinate from longitude/latitude to a different projection.\n * @param {import(\"./coordinate.js\").Coordinate} coordinate Coordinate as longitude and latitude, i.e.\n * an array with longitude as 1st and latitude as 2nd element.\n * @param {ProjectionLike=} opt_projection Target projection. The\n * default is Web Mercator, i.e. 'EPSG:3857'.\n * @return {import(\"./coordinate.js\").Coordinate} Coordinate projected to the target projection.\n * @api\n */\nexport function fromLonLat(coordinate, opt_projection) {\n return transform(\n coordinate,\n 'EPSG:4326',\n opt_projection !== undefined ? opt_projection : 'EPSG:3857'\n );\n}\n\n/**\n * Transforms a coordinate to longitude/latitude.\n * @param {import(\"./coordinate.js\").Coordinate} coordinate Projected coordinate.\n * @param {ProjectionLike=} opt_projection Projection of the coordinate.\n * The default is Web Mercator, i.e. 'EPSG:3857'.\n * @return {import(\"./coordinate.js\").Coordinate} Coordinate as longitude and latitude, i.e. an array\n * with longitude as 1st and latitude as 2nd element.\n * @api\n */\nexport function toLonLat(coordinate, opt_projection) {\n const lonLat = transform(\n coordinate,\n opt_projection !== undefined ? opt_projection : 'EPSG:3857',\n 'EPSG:4326'\n );\n const lon = lonLat[0];\n if (lon < -180 || lon > 180) {\n lonLat[0] = modulo(lon + 180, 360) - 180;\n }\n return lonLat;\n}\n\n/**\n * Checks if two projections are the same, that is every coordinate in one\n * projection does represent the same geographic point as the same coordinate in\n * the other projection.\n *\n * @param {Projection} projection1 Projection 1.\n * @param {Projection} projection2 Projection 2.\n * @return {boolean} Equivalent.\n * @api\n */\nexport function equivalent(projection1, projection2) {\n if (projection1 === projection2) {\n return true;\n }\n const equalUnits = projection1.getUnits() === projection2.getUnits();\n if (projection1.getCode() === projection2.getCode()) {\n return equalUnits;\n } else {\n const transformFunc = getTransformFromProjections(projection1, projection2);\n return transformFunc === cloneTransform && equalUnits;\n }\n}\n\n/**\n * Searches in the list of transform functions for the function for converting\n * coordinates from the source projection to the destination projection.\n *\n * @param {Projection} sourceProjection Source Projection object.\n * @param {Projection} destinationProjection Destination Projection\n * object.\n * @return {TransformFunction} Transform function.\n */\nexport function getTransformFromProjections(\n sourceProjection,\n destinationProjection\n) {\n const sourceCode = sourceProjection.getCode();\n const destinationCode = destinationProjection.getCode();\n let transformFunc = getTransformFunc(sourceCode, destinationCode);\n if (!transformFunc) {\n transformFunc = identityTransform;\n }\n return transformFunc;\n}\n\n/**\n * Given the projection-like objects, searches for a transformation\n * function to convert a coordinates array from the source projection to the\n * destination projection.\n *\n * @param {ProjectionLike} source Source.\n * @param {ProjectionLike} destination Destination.\n * @return {TransformFunction} Transform function.\n * @api\n */\nexport function getTransform(source, destination) {\n const sourceProjection = get(source);\n const destinationProjection = get(destination);\n return getTransformFromProjections(sourceProjection, destinationProjection);\n}\n\n/**\n * Transforms a coordinate from source projection to destination projection.\n * This returns a new coordinate (and does not modify the original).\n *\n * See {@link module:ol/proj~transformExtent} for extent transformation.\n * See the transform method of {@link module:ol/geom/Geometry~Geometry} and its\n * subclasses for geometry transforms.\n *\n * @param {import(\"./coordinate.js\").Coordinate} coordinate Coordinate.\n * @param {ProjectionLike} source Source projection-like.\n * @param {ProjectionLike} destination Destination projection-like.\n * @return {import(\"./coordinate.js\").Coordinate} Coordinate.\n * @api\n */\nexport function transform(coordinate, source, destination) {\n const transformFunc = getTransform(source, destination);\n return transformFunc(coordinate, undefined, coordinate.length);\n}\n\n/**\n * Transforms an extent from source projection to destination projection. This\n * returns a new extent (and does not modify the original).\n *\n * @param {import(\"./extent.js\").Extent} extent The extent to transform.\n * @param {ProjectionLike} source Source projection-like.\n * @param {ProjectionLike} destination Destination projection-like.\n * @param {number=} opt_stops Number of stops per side used for the transform.\n * By default only the corners are used.\n * @return {import(\"./extent.js\").Extent} The transformed extent.\n * @api\n */\nexport function transformExtent(extent, source, destination, opt_stops) {\n const transformFunc = getTransform(source, destination);\n return applyTransform(extent, transformFunc, undefined, opt_stops);\n}\n\n/**\n * Transforms the given point to the destination projection.\n *\n * @param {import(\"./coordinate.js\").Coordinate} point Point.\n * @param {Projection} sourceProjection Source projection.\n * @param {Projection} destinationProjection Destination projection.\n * @return {import(\"./coordinate.js\").Coordinate} Point.\n */\nexport function transformWithProjections(\n point,\n sourceProjection,\n destinationProjection\n) {\n const transformFunc = getTransformFromProjections(\n sourceProjection,\n destinationProjection\n );\n return transformFunc(point);\n}\n\n/**\n * @type {?Projection}\n */\nlet userProjection = null;\n\n/**\n * Set the projection for coordinates supplied from and returned by API methods.\n * Note that this method is not yet a part of the stable API. Support for user\n * projections is not yet complete and should be considered experimental.\n * @param {ProjectionLike} projection The user projection.\n */\nexport function setUserProjection(projection) {\n userProjection = get(projection);\n}\n\n/**\n * Clear the user projection if set. Note that this method is not yet a part of\n * the stable API. Support for user projections is not yet complete and should\n * be considered experimental.\n */\nexport function clearUserProjection() {\n userProjection = null;\n}\n\n/**\n * Get the projection for coordinates supplied from and returned by API methods.\n * Note that this method is not yet a part of the stable API. Support for user\n * projections is not yet complete and should be considered experimental.\n * @returns {?Projection} The user projection (or null if not set).\n */\nexport function getUserProjection() {\n return userProjection;\n}\n\n/**\n * Use geographic coordinates (WGS-84 datum) in API methods. Note that this\n * method is not yet a part of the stable API. Support for user projections is\n * not yet complete and should be considered experimental.\n */\nexport function useGeographic() {\n setUserProjection('EPSG:4326');\n}\n\n/**\n * Return a coordinate transformed into the user projection. If no user projection\n * is set, the original coordinate is returned.\n * @param {Array<number>} coordinate Input coordinate.\n * @param {ProjectionLike} sourceProjection The input coordinate projection.\n * @returns {Array<number>} The input coordinate in the user projection.\n */\nexport function toUserCoordinate(coordinate, sourceProjection) {\n if (!userProjection) {\n return coordinate;\n }\n return transform(coordinate, sourceProjection, userProjection);\n}\n\n/**\n * Return a coordinate transformed from the user projection. If no user projection\n * is set, the original coordinate is returned.\n * @param {Array<number>} coordinate Input coordinate.\n * @param {ProjectionLike} destProjection The destination projection.\n * @returns {Array<number>} The input coordinate transformed.\n */\nexport function fromUserCoordinate(coordinate, destProjection) {\n if (!userProjection) {\n return coordinate;\n }\n return transform(coordinate, userProjection, destProjection);\n}\n\n/**\n * Return an extent transformed into the user projection. If no user projection\n * is set, the original extent is returned.\n * @param {import(\"./extent.js\").Extent} extent Input extent.\n * @param {ProjectionLike} sourceProjection The input extent projection.\n * @returns {import(\"./extent.js\").Extent} The input extent in the user projection.\n */\nexport function toUserExtent(extent, sourceProjection) {\n if (!userProjection) {\n return extent;\n }\n return transformExtent(extent, sourceProjection, userProjection);\n}\n\n/**\n * Return an extent transformed from the user projection. If no user projection\n * is set, the original extent is returned.\n * @param {import(\"./extent.js\").Extent} extent Input extent.\n * @param {ProjectionLike} destProjection The destination projection.\n * @returns {import(\"./extent.js\").Extent} The input extent transformed.\n */\nexport function fromUserExtent(extent, destProjection) {\n if (!userProjection) {\n return extent;\n }\n return transformExtent(extent, userProjection, destProjection);\n}\n\n/**\n * Creates a safe coordinate transform function from a coordinate transform function.\n * \"Safe\" means that it can handle wrapping of x-coordinates for global projections,\n * and that coordinates exceeding the source projection validity extent's range will be\n * clamped to the validity range.\n * @param {Projection} sourceProj Source projection.\n * @param {Projection} destProj Destination projection.\n * @param {function(import(\"./coordinate.js\").Coordinate): import(\"./coordinate.js\").Coordinate} transform Transform function (source to destiation).\n * @return {function(import(\"./coordinate.js\").Coordinate): import(\"./coordinate.js\").Coordinate} Safe transform function (source to destiation).\n */\nexport function createSafeCoordinateTransform(sourceProj, destProj, transform) {\n return function (coord) {\n let sourceX = coord[0];\n let sourceY = coord[1];\n let transformed, worldsAway;\n if (sourceProj.canWrapX()) {\n const sourceExtent = sourceProj.getExtent();\n const sourceExtentWidth = getWidth(sourceExtent);\n worldsAway = getWorldsAway(coord, sourceProj, sourceExtentWidth);\n if (worldsAway) {\n // Move x to the real world\n sourceX = sourceX - worldsAway * sourceExtentWidth;\n }\n sourceX = clamp(sourceX, sourceExtent[0], sourceExtent[2]);\n sourceY = clamp(sourceY, sourceExtent[1], sourceExtent[3]);\n transformed = transform([sourceX, sourceY]);\n } else {\n transformed = transform(coord);\n }\n if (worldsAway && destProj.canWrapX()) {\n // Move transformed coordinate back to the offset world\n transformed[0] += worldsAway * getWidth(destProj.getExtent());\n }\n return transformed;\n };\n}\n\n/**\n * Add transforms to and from EPSG:4326 and EPSG:3857. This function is called\n * by when this module is executed and should only need to be called again after\n * `clearAllProjections()` is called (e.g. in tests).\n */\nexport function addCommon() {\n // Add transformations that don't alter coordinates to convert within set of\n // projections with equal meaning.\n addEquivalentProjections(EPSG3857_PROJECTIONS);\n addEquivalentProjections(EPSG4326_PROJECTIONS);\n // Add transformations to convert EPSG:4326 like coordinates to EPSG:3857 like\n // coordinates and back.\n addEquivalentTransforms(\n EPSG4326_PROJECTIONS,\n EPSG3857_PROJECTIONS,\n fromEPSG4326,\n toEPSG4326\n );\n}\n\naddCommon();\n","/**\n * @module ol/geom/flat/transform\n */\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {import(\"../../transform.js\").Transform} transform Transform.\n * @param {Array<number>=} opt_dest Destination.\n * @return {Array<number>} Transformed coordinates.\n */\nexport function transform2D(\n flatCoordinates,\n offset,\n end,\n stride,\n transform,\n opt_dest\n) {\n const dest = opt_dest ? opt_dest : [];\n let i = 0;\n for (let j = offset; j < end; j += stride) {\n const x = flatCoordinates[j];\n const y = flatCoordinates[j + 1];\n dest[i++] = transform[0] * x + transform[2] * y + transform[4];\n dest[i++] = transform[1] * x + transform[3] * y + transform[5];\n }\n if (opt_dest && dest.length != i) {\n dest.length = i;\n }\n return dest;\n}\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {number} angle Angle.\n * @param {Array<number>} anchor Rotation anchor point.\n * @param {Array<number>=} opt_dest Destination.\n * @return {Array<number>} Transformed coordinates.\n */\nexport function rotate(\n flatCoordinates,\n offset,\n end,\n stride,\n angle,\n anchor,\n opt_dest\n) {\n const dest = opt_dest ? opt_dest : [];\n const cos = Math.cos(angle);\n const sin = Math.sin(angle);\n const anchorX = anchor[0];\n const anchorY = anchor[1];\n let i = 0;\n for (let j = offset; j < end; j += stride) {\n const deltaX = flatCoordinates[j] - anchorX;\n const deltaY = flatCoordinates[j + 1] - anchorY;\n dest[i++] = anchorX + deltaX * cos - deltaY * sin;\n dest[i++] = anchorY + deltaX * sin + deltaY * cos;\n for (let k = j + 2; k < j + stride; ++k) {\n dest[i++] = flatCoordinates[k];\n }\n }\n if (opt_dest && dest.length != i) {\n dest.length = i;\n }\n return dest;\n}\n\n/**\n * Scale the coordinates.\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {number} sx Scale factor in the x-direction.\n * @param {number} sy Scale factor in the y-direction.\n * @param {Array<number>} anchor Scale anchor point.\n * @param {Array<number>=} opt_dest Destination.\n * @return {Array<number>} Transformed coordinates.\n */\nexport function scale(\n flatCoordinates,\n offset,\n end,\n stride,\n sx,\n sy,\n anchor,\n opt_dest\n) {\n const dest = opt_dest ? opt_dest : [];\n const anchorX = anchor[0];\n const anchorY = anchor[1];\n let i = 0;\n for (let j = offset; j < end; j += stride) {\n const deltaX = flatCoordinates[j] - anchorX;\n const deltaY = flatCoordinates[j + 1] - anchorY;\n dest[i++] = anchorX + sx * deltaX;\n dest[i++] = anchorY + sy * deltaY;\n for (let k = j + 2; k < j + stride; ++k) {\n dest[i++] = flatCoordinates[k];\n }\n }\n if (opt_dest && dest.length != i) {\n dest.length = i;\n }\n return dest;\n}\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {number} deltaX Delta X.\n * @param {number} deltaY Delta Y.\n * @param {Array<number>=} opt_dest Destination.\n * @return {Array<number>} Transformed coordinates.\n */\nexport function translate(\n flatCoordinates,\n offset,\n end,\n stride,\n deltaX,\n deltaY,\n opt_dest\n) {\n const dest = opt_dest ? opt_dest : [];\n let i = 0;\n for (let j = offset; j < end; j += stride) {\n dest[i++] = flatCoordinates[j] + deltaX;\n dest[i++] = flatCoordinates[j + 1] + deltaY;\n for (let k = j + 2; k < j + stride; ++k) {\n dest[i++] = flatCoordinates[k];\n }\n }\n if (opt_dest && dest.length != i) {\n dest.length = i;\n }\n return dest;\n}\n","/**\n * @module ol/geom/Geometry\n */\nimport BaseObject from '../Object.js';\nimport Units from '../proj/Units.js';\nimport {abstract} from '../util.js';\nimport {\n compose as composeTransform,\n create as createTransform,\n} from '../transform.js';\nimport {\n createEmpty,\n createOrUpdateEmpty,\n getHeight,\n returnOrUpdate,\n} from '../extent.js';\nimport {get as getProjection, getTransform} from '../proj.js';\nimport {memoizeOne} from '../functions.js';\nimport {transform2D} from './flat/transform.js';\n\n/**\n * @type {import(\"../transform.js\").Transform}\n */\nconst tmpTransform = createTransform();\n\n/**\n * @classdesc\n * Abstract base class; normally only used for creating subclasses and not\n * instantiated in apps.\n * Base class for vector geometries.\n *\n * To get notified of changes to the geometry, register a listener for the\n * generic `change` event on your geometry instance.\n *\n * @abstract\n * @api\n */\nclass Geometry extends BaseObject {\n constructor() {\n super();\n\n /**\n * @private\n * @type {import(\"../extent.js\").Extent}\n */\n this.extent_ = createEmpty();\n\n /**\n * @private\n * @type {number}\n */\n this.extentRevision_ = -1;\n\n /**\n * @protected\n * @type {number}\n */\n this.simplifiedGeometryMaxMinSquaredTolerance = 0;\n\n /**\n * @protected\n * @type {number}\n */\n this.simplifiedGeometryRevision = 0;\n\n /**\n * Get a transformed and simplified version of the geometry.\n * @abstract\n * @param {number} revision The geometry revision.\n * @param {number} squaredTolerance Squared tolerance.\n * @param {import(\"../proj.js\").TransformFunction} [opt_transform] Optional transform function.\n * @return {Geometry} Simplified geometry.\n */\n this.simplifyTransformedInternal = memoizeOne(function (\n revision,\n squaredTolerance,\n opt_transform\n ) {\n if (!opt_transform) {\n return this.getSimplifiedGeometry(squaredTolerance);\n }\n const clone = this.clone();\n clone.applyTransform(opt_transform);\n return clone.getSimplifiedGeometry(squaredTolerance);\n });\n }\n\n /**\n * Get a transformed and simplified version of the geometry.\n * @abstract\n * @param {number} squaredTolerance Squared tolerance.\n * @param {import(\"../proj.js\").TransformFunction} [opt_transform] Optional transform function.\n * @return {Geometry} Simplified geometry.\n */\n simplifyTransformed(squaredTolerance, opt_transform) {\n return this.simplifyTransformedInternal(\n this.getRevision(),\n squaredTolerance,\n opt_transform\n );\n }\n\n /**\n * Make a complete copy of the geometry.\n * @abstract\n * @return {!Geometry} Clone.\n */\n clone() {\n return abstract();\n }\n\n /**\n * @abstract\n * @param {number} x X.\n * @param {number} y Y.\n * @param {import(\"../coordinate.js\").Coordinate} closestPoint Closest point.\n * @param {number} minSquaredDistance Minimum squared distance.\n * @return {number} Minimum squared distance.\n */\n closestPointXY(x, y, closestPoint, minSquaredDistance) {\n return abstract();\n }\n\n /**\n * @param {number} x X.\n * @param {number} y Y.\n * @return {boolean} Contains (x, y).\n */\n containsXY(x, y) {\n const coord = this.getClosestPoint([x, y]);\n return coord[0] === x && coord[1] === y;\n }\n\n /**\n * Return the closest point of the geometry to the passed point as\n * {@link module:ol/coordinate~Coordinate coordinate}.\n * @param {import(\"../coordinate.js\").Coordinate} point Point.\n * @param {import(\"../coordinate.js\").Coordinate=} opt_closestPoint Closest point.\n * @return {import(\"../coordinate.js\").Coordinate} Closest point.\n * @api\n */\n getClosestPoint(point, opt_closestPoint) {\n const closestPoint = opt_closestPoint ? opt_closestPoint : [NaN, NaN];\n this.closestPointXY(point[0], point[1], closestPoint, Infinity);\n return closestPoint;\n }\n\n /**\n * Returns true if this geometry includes the specified coordinate. If the\n * coordinate is on the boundary of the geometry, returns false.\n * @param {import(\"../coordinate.js\").Coordinate} coordinate Coordinate.\n * @return {boolean} Contains coordinate.\n * @api\n */\n intersectsCoordinate(coordinate) {\n return this.containsXY(coordinate[0], coordinate[1]);\n }\n\n /**\n * @abstract\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @protected\n * @return {import(\"../extent.js\").Extent} extent Extent.\n */\n computeExtent(extent) {\n return abstract();\n }\n\n /**\n * Get the extent of the geometry.\n * @param {import(\"../extent.js\").Extent=} opt_extent Extent.\n * @return {import(\"../extent.js\").Extent} extent Extent.\n * @api\n */\n getExtent(opt_extent) {\n if (this.extentRevision_ != this.getRevision()) {\n const extent = this.computeExtent(this.extent_);\n if (isNaN(extent[0]) || isNaN(extent[1])) {\n createOrUpdateEmpty(extent);\n }\n this.extentRevision_ = this.getRevision();\n }\n return returnOrUpdate(this.extent_, opt_extent);\n }\n\n /**\n * Rotate the geometry around a given coordinate. This modifies the geometry\n * coordinates in place.\n * @abstract\n * @param {number} angle Rotation angle in radians.\n * @param {import(\"../coordinate.js\").Coordinate} anchor The rotation center.\n * @api\n */\n rotate(angle, anchor) {\n abstract();\n }\n\n /**\n * Scale the geometry (with an optional origin). This modifies the geometry\n * coordinates in place.\n * @abstract\n * @param {number} sx The scaling factor in the x-direction.\n * @param {number=} opt_sy The scaling factor in the y-direction (defaults to sx).\n * @param {import(\"../coordinate.js\").Coordinate=} opt_anchor The scale origin (defaults to the center\n * of the geometry extent).\n * @api\n */\n scale(sx, opt_sy, opt_anchor) {\n abstract();\n }\n\n /**\n * Create a simplified version of this geometry. For linestrings, this uses\n * the [Douglas Peucker](https://en.wikipedia.org/wiki/Ramer-Douglas-Peucker_algorithm)\n * algorithm. For polygons, a quantization-based\n * simplification is used to preserve topology.\n * @param {number} tolerance The tolerance distance for simplification.\n * @return {Geometry} A new, simplified version of the original geometry.\n * @api\n */\n simplify(tolerance) {\n return this.getSimplifiedGeometry(tolerance * tolerance);\n }\n\n /**\n * Create a simplified version of this geometry using the Douglas Peucker\n * algorithm.\n * See https://en.wikipedia.org/wiki/Ramer-Douglas-Peucker_algorithm.\n * @abstract\n * @param {number} squaredTolerance Squared tolerance.\n * @return {Geometry} Simplified geometry.\n */\n getSimplifiedGeometry(squaredTolerance) {\n return abstract();\n }\n\n /**\n * Get the type of this geometry.\n * @abstract\n * @return {import(\"./GeometryType.js\").default} Geometry type.\n */\n getType() {\n return abstract();\n }\n\n /**\n * Apply a transform function to the coordinates of the geometry.\n * The geometry is modified in place.\n * If you do not want the geometry modified in place, first `clone()` it and\n * then use this function on the clone.\n * @abstract\n * @param {import(\"../proj.js\").TransformFunction} transformFn Transform function.\n * Called with a flat array of geometry coordinates.\n */\n applyTransform(transformFn) {\n abstract();\n }\n\n /**\n * Test if the geometry and the passed extent intersect.\n * @abstract\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @return {boolean} `true` if the geometry and the extent intersect.\n */\n intersectsExtent(extent) {\n return abstract();\n }\n\n /**\n * Translate the geometry. This modifies the geometry coordinates in place. If\n * instead you want a new geometry, first `clone()` this geometry.\n * @abstract\n * @param {number} deltaX Delta X.\n * @param {number} deltaY Delta Y.\n * @api\n */\n translate(deltaX, deltaY) {\n abstract();\n }\n\n /**\n * Transform each coordinate of the geometry from one coordinate reference\n * system to another. The geometry is modified in place.\n * For example, a line will be transformed to a line and a circle to a circle.\n * If you do not want the geometry modified in place, first `clone()` it and\n * then use this function on the clone.\n *\n * @param {import(\"../proj.js\").ProjectionLike} source The current projection. Can be a\n * string identifier or a {@link module:ol/proj/Projection~Projection} object.\n * @param {import(\"../proj.js\").ProjectionLike} destination The desired projection. Can be a\n * string identifier or a {@link module:ol/proj/Projection~Projection} object.\n * @return {Geometry} This geometry. Note that original geometry is\n * modified in place.\n * @api\n */\n transform(source, destination) {\n /** @type {import(\"../proj/Projection.js\").default} */\n const sourceProj = getProjection(source);\n const transformFn =\n sourceProj.getUnits() == Units.TILE_PIXELS\n ? function (inCoordinates, outCoordinates, stride) {\n const pixelExtent = sourceProj.getExtent();\n const projectedExtent = sourceProj.getWorldExtent();\n const scale = getHeight(projectedExtent) / getHeight(pixelExtent);\n composeTransform(\n tmpTransform,\n projectedExtent[0],\n projectedExtent[3],\n scale,\n -scale,\n 0,\n 0,\n 0\n );\n transform2D(\n inCoordinates,\n 0,\n inCoordinates.length,\n stride,\n tmpTransform,\n outCoordinates\n );\n return getTransform(sourceProj, destination)(\n inCoordinates,\n outCoordinates,\n stride\n );\n }\n : getTransform(sourceProj, destination);\n this.applyTransform(transformFn);\n return this;\n }\n}\n\nexport default Geometry;\n","/**\n * @module ol/geom/SimpleGeometry\n */\nimport Geometry from './Geometry.js';\nimport GeometryLayout from './GeometryLayout.js';\nimport {abstract} from '../util.js';\nimport {createOrUpdateFromFlatCoordinates, getCenter} from '../extent.js';\nimport {rotate, scale, transform2D, translate} from './flat/transform.js';\n\n/**\n * @classdesc\n * Abstract base class; only used for creating subclasses; do not instantiate\n * in apps, as cannot be rendered.\n *\n * @abstract\n * @api\n */\nclass SimpleGeometry extends Geometry {\n constructor() {\n super();\n\n /**\n * @protected\n * @type {import(\"./GeometryLayout.js\").default}\n */\n this.layout = GeometryLayout.XY;\n\n /**\n * @protected\n * @type {number}\n */\n this.stride = 2;\n\n /**\n * @protected\n * @type {Array<number>}\n */\n this.flatCoordinates = null;\n }\n\n /**\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @protected\n * @return {import(\"../extent.js\").Extent} extent Extent.\n */\n computeExtent(extent) {\n return createOrUpdateFromFlatCoordinates(\n this.flatCoordinates,\n 0,\n this.flatCoordinates.length,\n this.stride,\n extent\n );\n }\n\n /**\n * @abstract\n * @return {Array<*>} Coordinates.\n */\n getCoordinates() {\n return abstract();\n }\n\n /**\n * Return the first coordinate of the geometry.\n * @return {import(\"../coordinate.js\").Coordinate} First coordinate.\n * @api\n */\n getFirstCoordinate() {\n return this.flatCoordinates.slice(0, this.stride);\n }\n\n /**\n * @return {Array<number>} Flat coordinates.\n */\n getFlatCoordinates() {\n return this.flatCoordinates;\n }\n\n /**\n * Return the last coordinate of the geometry.\n * @return {import(\"../coordinate.js\").Coordinate} Last point.\n * @api\n */\n getLastCoordinate() {\n return this.flatCoordinates.slice(\n this.flatCoordinates.length - this.stride\n );\n }\n\n /**\n * Return the {@link module:ol/geom/GeometryLayout layout} of the geometry.\n * @return {import(\"./GeometryLayout.js\").default} Layout.\n * @api\n */\n getLayout() {\n return this.layout;\n }\n\n /**\n * Create a simplified version of this geometry using the Douglas Peucker algorithm.\n * @param {number} squaredTolerance Squared tolerance.\n * @return {SimpleGeometry} Simplified geometry.\n */\n getSimplifiedGeometry(squaredTolerance) {\n if (this.simplifiedGeometryRevision !== this.getRevision()) {\n this.simplifiedGeometryMaxMinSquaredTolerance = 0;\n this.simplifiedGeometryRevision = this.getRevision();\n }\n // If squaredTolerance is negative or if we know that simplification will not\n // have any effect then just return this.\n if (\n squaredTolerance < 0 ||\n (this.simplifiedGeometryMaxMinSquaredTolerance !== 0 &&\n squaredTolerance <= this.simplifiedGeometryMaxMinSquaredTolerance)\n ) {\n return this;\n }\n\n const simplifiedGeometry = this.getSimplifiedGeometryInternal(\n squaredTolerance\n );\n const simplifiedFlatCoordinates = simplifiedGeometry.getFlatCoordinates();\n if (simplifiedFlatCoordinates.length < this.flatCoordinates.length) {\n return simplifiedGeometry;\n } else {\n // Simplification did not actually remove any coordinates. We now know\n // that any calls to getSimplifiedGeometry with a squaredTolerance less\n // than or equal to the current squaredTolerance will also not have any\n // effect. This allows us to short circuit simplification (saving CPU\n // cycles) and prevents the cache of simplified geometries from filling\n // up with useless identical copies of this geometry (saving memory).\n this.simplifiedGeometryMaxMinSquaredTolerance = squaredTolerance;\n return this;\n }\n }\n\n /**\n * @param {number} squaredTolerance Squared tolerance.\n * @return {SimpleGeometry} Simplified geometry.\n * @protected\n */\n getSimplifiedGeometryInternal(squaredTolerance) {\n return this;\n }\n\n /**\n * @return {number} Stride.\n */\n getStride() {\n return this.stride;\n }\n\n /**\n * @param {import(\"./GeometryLayout.js\").default} layout Layout.\n * @param {Array<number>} flatCoordinates Flat coordinates.\n */\n setFlatCoordinates(layout, flatCoordinates) {\n this.stride = getStrideForLayout(layout);\n this.layout = layout;\n this.flatCoordinates = flatCoordinates;\n }\n\n /**\n * @abstract\n * @param {!Array<*>} coordinates Coordinates.\n * @param {import(\"./GeometryLayout.js\").default=} opt_layout Layout.\n */\n setCoordinates(coordinates, opt_layout) {\n abstract();\n }\n\n /**\n * @param {import(\"./GeometryLayout.js\").default|undefined} layout Layout.\n * @param {Array<*>} coordinates Coordinates.\n * @param {number} nesting Nesting.\n * @protected\n */\n setLayout(layout, coordinates, nesting) {\n /** @type {number} */\n let stride;\n if (layout) {\n stride = getStrideForLayout(layout);\n } else {\n for (let i = 0; i < nesting; ++i) {\n if (coordinates.length === 0) {\n this.layout = GeometryLayout.XY;\n this.stride = 2;\n return;\n } else {\n coordinates = /** @type {Array} */ (coordinates[0]);\n }\n }\n stride = coordinates.length;\n layout = getLayoutForStride(stride);\n }\n this.layout = layout;\n this.stride = stride;\n }\n\n /**\n * Apply a transform function to the coordinates of the geometry.\n * The geometry is modified in place.\n * If you do not want the geometry modified in place, first `clone()` it and\n * then use this function on the clone.\n * @param {import(\"../proj.js\").TransformFunction} transformFn Transform function.\n * Called with a flat array of geometry coordinates.\n * @api\n */\n applyTransform(transformFn) {\n if (this.flatCoordinates) {\n transformFn(this.flatCoordinates, this.flatCoordinates, this.stride);\n this.changed();\n }\n }\n\n /**\n * Rotate the geometry around a given coordinate. This modifies the geometry\n * coordinates in place.\n * @param {number} angle Rotation angle in radians.\n * @param {import(\"../coordinate.js\").Coordinate} anchor The rotation center.\n * @api\n */\n rotate(angle, anchor) {\n const flatCoordinates = this.getFlatCoordinates();\n if (flatCoordinates) {\n const stride = this.getStride();\n rotate(\n flatCoordinates,\n 0,\n flatCoordinates.length,\n stride,\n angle,\n anchor,\n flatCoordinates\n );\n this.changed();\n }\n }\n\n /**\n * Scale the geometry (with an optional origin). This modifies the geometry\n * coordinates in place.\n * @param {number} sx The scaling factor in the x-direction.\n * @param {number=} opt_sy The scaling factor in the y-direction (defaults to sx).\n * @param {import(\"../coordinate.js\").Coordinate=} opt_anchor The scale origin (defaults to the center\n * of the geometry extent).\n * @api\n */\n scale(sx, opt_sy, opt_anchor) {\n let sy = opt_sy;\n if (sy === undefined) {\n sy = sx;\n }\n let anchor = opt_anchor;\n if (!anchor) {\n anchor = getCenter(this.getExtent());\n }\n const flatCoordinates = this.getFlatCoordinates();\n if (flatCoordinates) {\n const stride = this.getStride();\n scale(\n flatCoordinates,\n 0,\n flatCoordinates.length,\n stride,\n sx,\n sy,\n anchor,\n flatCoordinates\n );\n this.changed();\n }\n }\n\n /**\n * Translate the geometry. This modifies the geometry coordinates in place. If\n * instead you want a new geometry, first `clone()` this geometry.\n * @param {number} deltaX Delta X.\n * @param {number} deltaY Delta Y.\n * @api\n */\n translate(deltaX, deltaY) {\n const flatCoordinates = this.getFlatCoordinates();\n if (flatCoordinates) {\n const stride = this.getStride();\n translate(\n flatCoordinates,\n 0,\n flatCoordinates.length,\n stride,\n deltaX,\n deltaY,\n flatCoordinates\n );\n this.changed();\n }\n }\n}\n\n/**\n * @param {number} stride Stride.\n * @return {import(\"./GeometryLayout.js\").default} layout Layout.\n */\nfunction getLayoutForStride(stride) {\n let layout;\n if (stride == 2) {\n layout = GeometryLayout.XY;\n } else if (stride == 3) {\n layout = GeometryLayout.XYZ;\n } else if (stride == 4) {\n layout = GeometryLayout.XYZM;\n }\n return /** @type {import(\"./GeometryLayout.js\").default} */ (layout);\n}\n\n/**\n * @param {import(\"./GeometryLayout.js\").default} layout Layout.\n * @return {number} Stride.\n */\nexport function getStrideForLayout(layout) {\n let stride;\n if (layout == GeometryLayout.XY) {\n stride = 2;\n } else if (layout == GeometryLayout.XYZ || layout == GeometryLayout.XYM) {\n stride = 3;\n } else if (layout == GeometryLayout.XYZM) {\n stride = 4;\n }\n return /** @type {number} */ (stride);\n}\n\n/**\n * @param {SimpleGeometry} simpleGeometry Simple geometry.\n * @param {import(\"../transform.js\").Transform} transform Transform.\n * @param {Array<number>=} opt_dest Destination.\n * @return {Array<number>} Transformed flat coordinates.\n */\nexport function transformGeom2D(simpleGeometry, transform, opt_dest) {\n const flatCoordinates = simpleGeometry.getFlatCoordinates();\n if (!flatCoordinates) {\n return null;\n } else {\n const stride = simpleGeometry.getStride();\n return transform2D(\n flatCoordinates,\n 0,\n flatCoordinates.length,\n stride,\n transform,\n opt_dest\n );\n }\n}\n\nexport default SimpleGeometry;\n","/**\n * @module ol/geom/flat/closest\n */\nimport {lerp, squaredDistance as squaredDx} from '../../math.js';\n\n/**\n * Returns the point on the 2D line segment flatCoordinates[offset1] to\n * flatCoordinates[offset2] that is closest to the point (x, y). Extra\n * dimensions are linearly interpolated.\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset1 Offset 1.\n * @param {number} offset2 Offset 2.\n * @param {number} stride Stride.\n * @param {number} x X.\n * @param {number} y Y.\n * @param {Array<number>} closestPoint Closest point.\n */\nfunction assignClosest(\n flatCoordinates,\n offset1,\n offset2,\n stride,\n x,\n y,\n closestPoint\n) {\n const x1 = flatCoordinates[offset1];\n const y1 = flatCoordinates[offset1 + 1];\n const dx = flatCoordinates[offset2] - x1;\n const dy = flatCoordinates[offset2 + 1] - y1;\n let offset;\n if (dx === 0 && dy === 0) {\n offset = offset1;\n } else {\n const t = ((x - x1) * dx + (y - y1) * dy) / (dx * dx + dy * dy);\n if (t > 1) {\n offset = offset2;\n } else if (t > 0) {\n for (let i = 0; i < stride; ++i) {\n closestPoint[i] = lerp(\n flatCoordinates[offset1 + i],\n flatCoordinates[offset2 + i],\n t\n );\n }\n closestPoint.length = stride;\n return;\n } else {\n offset = offset1;\n }\n }\n for (let i = 0; i < stride; ++i) {\n closestPoint[i] = flatCoordinates[offset + i];\n }\n closestPoint.length = stride;\n}\n\n/**\n * Return the squared of the largest distance between any pair of consecutive\n * coordinates.\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {number} max Max squared delta.\n * @return {number} Max squared delta.\n */\nexport function maxSquaredDelta(flatCoordinates, offset, end, stride, max) {\n let x1 = flatCoordinates[offset];\n let y1 = flatCoordinates[offset + 1];\n for (offset += stride; offset < end; offset += stride) {\n const x2 = flatCoordinates[offset];\n const y2 = flatCoordinates[offset + 1];\n const squaredDelta = squaredDx(x1, y1, x2, y2);\n if (squaredDelta > max) {\n max = squaredDelta;\n }\n x1 = x2;\n y1 = y2;\n }\n return max;\n}\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array<number>} ends Ends.\n * @param {number} stride Stride.\n * @param {number} max Max squared delta.\n * @return {number} Max squared delta.\n */\nexport function arrayMaxSquaredDelta(\n flatCoordinates,\n offset,\n ends,\n stride,\n max\n) {\n for (let i = 0, ii = ends.length; i < ii; ++i) {\n const end = ends[i];\n max = maxSquaredDelta(flatCoordinates, offset, end, stride, max);\n offset = end;\n }\n return max;\n}\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array<Array<number>>} endss Endss.\n * @param {number} stride Stride.\n * @param {number} max Max squared delta.\n * @return {number} Max squared delta.\n */\nexport function multiArrayMaxSquaredDelta(\n flatCoordinates,\n offset,\n endss,\n stride,\n max\n) {\n for (let i = 0, ii = endss.length; i < ii; ++i) {\n const ends = endss[i];\n max = arrayMaxSquaredDelta(flatCoordinates, offset, ends, stride, max);\n offset = ends[ends.length - 1];\n }\n return max;\n}\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {number} maxDelta Max delta.\n * @param {boolean} isRing Is ring.\n * @param {number} x X.\n * @param {number} y Y.\n * @param {Array<number>} closestPoint Closest point.\n * @param {number} minSquaredDistance Minimum squared distance.\n * @param {Array<number>=} opt_tmpPoint Temporary point object.\n * @return {number} Minimum squared distance.\n */\nexport function assignClosestPoint(\n flatCoordinates,\n offset,\n end,\n stride,\n maxDelta,\n isRing,\n x,\n y,\n closestPoint,\n minSquaredDistance,\n opt_tmpPoint\n) {\n if (offset == end) {\n return minSquaredDistance;\n }\n let i, squaredDistance;\n if (maxDelta === 0) {\n // All points are identical, so just test the first point.\n squaredDistance = squaredDx(\n x,\n y,\n flatCoordinates[offset],\n flatCoordinates[offset + 1]\n );\n if (squaredDistance < minSquaredDistance) {\n for (i = 0; i < stride; ++i) {\n closestPoint[i] = flatCoordinates[offset + i];\n }\n closestPoint.length = stride;\n return squaredDistance;\n } else {\n return minSquaredDistance;\n }\n }\n const tmpPoint = opt_tmpPoint ? opt_tmpPoint : [NaN, NaN];\n let index = offset + stride;\n while (index < end) {\n assignClosest(\n flatCoordinates,\n index - stride,\n index,\n stride,\n x,\n y,\n tmpPoint\n );\n squaredDistance = squaredDx(x, y, tmpPoint[0], tmpPoint[1]);\n if (squaredDistance < minSquaredDistance) {\n minSquaredDistance = squaredDistance;\n for (i = 0; i < stride; ++i) {\n closestPoint[i] = tmpPoint[i];\n }\n closestPoint.length = stride;\n index += stride;\n } else {\n // Skip ahead multiple points, because we know that all the skipped\n // points cannot be any closer than the closest point we have found so\n // far. We know this because we know how close the current point is, how\n // close the closest point we have found so far is, and the maximum\n // distance between consecutive points. For example, if we're currently\n // at distance 10, the best we've found so far is 3, and that the maximum\n // distance between consecutive points is 2, then we'll need to skip at\n // least (10 - 3) / 2 == 3 (rounded down) points to have any chance of\n // finding a closer point. We use Math.max(..., 1) to ensure that we\n // always advance at least one point, to avoid an infinite loop.\n index +=\n stride *\n Math.max(\n ((Math.sqrt(squaredDistance) - Math.sqrt(minSquaredDistance)) /\n maxDelta) |\n 0,\n 1\n );\n }\n }\n if (isRing) {\n // Check the closing segment.\n assignClosest(\n flatCoordinates,\n end - stride,\n offset,\n stride,\n x,\n y,\n tmpPoint\n );\n squaredDistance = squaredDx(x, y, tmpPoint[0], tmpPoint[1]);\n if (squaredDistance < minSquaredDistance) {\n minSquaredDistance = squaredDistance;\n for (i = 0; i < stride; ++i) {\n closestPoint[i] = tmpPoint[i];\n }\n closestPoint.length = stride;\n }\n }\n return minSquaredDistance;\n}\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array<number>} ends Ends.\n * @param {number} stride Stride.\n * @param {number} maxDelta Max delta.\n * @param {boolean} isRing Is ring.\n * @param {number} x X.\n * @param {number} y Y.\n * @param {Array<number>} closestPoint Closest point.\n * @param {number} minSquaredDistance Minimum squared distance.\n * @param {Array<number>=} opt_tmpPoint Temporary point object.\n * @return {number} Minimum squared distance.\n */\nexport function assignClosestArrayPoint(\n flatCoordinates,\n offset,\n ends,\n stride,\n maxDelta,\n isRing,\n x,\n y,\n closestPoint,\n minSquaredDistance,\n opt_tmpPoint\n) {\n const tmpPoint = opt_tmpPoint ? opt_tmpPoint : [NaN, NaN];\n for (let i = 0, ii = ends.length; i < ii; ++i) {\n const end = ends[i];\n minSquaredDistance = assignClosestPoint(\n flatCoordinates,\n offset,\n end,\n stride,\n maxDelta,\n isRing,\n x,\n y,\n closestPoint,\n minSquaredDistance,\n tmpPoint\n );\n offset = end;\n }\n return minSquaredDistance;\n}\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array<Array<number>>} endss Endss.\n * @param {number} stride Stride.\n * @param {number} maxDelta Max delta.\n * @param {boolean} isRing Is ring.\n * @param {number} x X.\n * @param {number} y Y.\n * @param {Array<number>} closestPoint Closest point.\n * @param {number} minSquaredDistance Minimum squared distance.\n * @param {Array<number>=} opt_tmpPoint Temporary point object.\n * @return {number} Minimum squared distance.\n */\nexport function assignClosestMultiArrayPoint(\n flatCoordinates,\n offset,\n endss,\n stride,\n maxDelta,\n isRing,\n x,\n y,\n closestPoint,\n minSquaredDistance,\n opt_tmpPoint\n) {\n const tmpPoint = opt_tmpPoint ? opt_tmpPoint : [NaN, NaN];\n for (let i = 0, ii = endss.length; i < ii; ++i) {\n const ends = endss[i];\n minSquaredDistance = assignClosestArrayPoint(\n flatCoordinates,\n offset,\n ends,\n stride,\n maxDelta,\n isRing,\n x,\n y,\n closestPoint,\n minSquaredDistance,\n tmpPoint\n );\n offset = ends[ends.length - 1];\n }\n return minSquaredDistance;\n}\n","/**\n * @module ol/geom/flat/deflate\n */\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {import(\"../../coordinate.js\").Coordinate} coordinate Coordinate.\n * @param {number} stride Stride.\n * @return {number} offset Offset.\n */\nexport function deflateCoordinate(flatCoordinates, offset, coordinate, stride) {\n for (let i = 0, ii = coordinate.length; i < ii; ++i) {\n flatCoordinates[offset++] = coordinate[i];\n }\n return offset;\n}\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array<import(\"../../coordinate.js\").Coordinate>} coordinates Coordinates.\n * @param {number} stride Stride.\n * @return {number} offset Offset.\n */\nexport function deflateCoordinates(\n flatCoordinates,\n offset,\n coordinates,\n stride\n) {\n for (let i = 0, ii = coordinates.length; i < ii; ++i) {\n const coordinate = coordinates[i];\n for (let j = 0; j < stride; ++j) {\n flatCoordinates[offset++] = coordinate[j];\n }\n }\n return offset;\n}\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array<Array<import(\"../../coordinate.js\").Coordinate>>} coordinatess Coordinatess.\n * @param {number} stride Stride.\n * @param {Array<number>=} opt_ends Ends.\n * @return {Array<number>} Ends.\n */\nexport function deflateCoordinatesArray(\n flatCoordinates,\n offset,\n coordinatess,\n stride,\n opt_ends\n) {\n const ends = opt_ends ? opt_ends : [];\n let i = 0;\n for (let j = 0, jj = coordinatess.length; j < jj; ++j) {\n const end = deflateCoordinates(\n flatCoordinates,\n offset,\n coordinatess[j],\n stride\n );\n ends[i++] = end;\n offset = end;\n }\n ends.length = i;\n return ends;\n}\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array<Array<Array<import(\"../../coordinate.js\").Coordinate>>>} coordinatesss Coordinatesss.\n * @param {number} stride Stride.\n * @param {Array<Array<number>>=} opt_endss Endss.\n * @return {Array<Array<number>>} Endss.\n */\nexport function deflateMultiCoordinatesArray(\n flatCoordinates,\n offset,\n coordinatesss,\n stride,\n opt_endss\n) {\n const endss = opt_endss ? opt_endss : [];\n let i = 0;\n for (let j = 0, jj = coordinatesss.length; j < jj; ++j) {\n const ends = deflateCoordinatesArray(\n flatCoordinates,\n offset,\n coordinatesss[j],\n stride,\n endss[i]\n );\n endss[i++] = ends;\n offset = ends[ends.length - 1];\n }\n endss.length = i;\n return endss;\n}\n","/**\n * @module ol/geom/flat/simplify\n */\n// Based on simplify-js https://github.com/mourner/simplify-js\n// Copyright (c) 2012, Vladimir Agafonkin\n// All rights reserved.\n//\n// Redistribution and use in source and binary forms, with or without\n// modification, are permitted provided that the following conditions are met:\n//\n// 1. Redistributions of source code must retain the above copyright notice,\n// this list of conditions and the following disclaimer.\n//\n// 2. Redistributions in binary form must reproduce the above copyright\n// notice, this list of conditions and the following disclaimer in the\n// documentation and/or other materials provided with the distribution.\n//\n// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS \"AS IS\"\n// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\n// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\n// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE\n// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\n// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\n// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS\n// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN\n// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n// POSSIBILITY OF SUCH DAMAGE.\n\nimport {squaredDistance, squaredSegmentDistance} from '../../math.js';\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {number} squaredTolerance Squared tolerance.\n * @param {boolean} highQuality Highest quality.\n * @param {Array<number>=} opt_simplifiedFlatCoordinates Simplified flat\n * coordinates.\n * @return {Array<number>} Simplified line string.\n */\nexport function simplifyLineString(\n flatCoordinates,\n offset,\n end,\n stride,\n squaredTolerance,\n highQuality,\n opt_simplifiedFlatCoordinates\n) {\n const simplifiedFlatCoordinates =\n opt_simplifiedFlatCoordinates !== undefined\n ? opt_simplifiedFlatCoordinates\n : [];\n if (!highQuality) {\n end = radialDistance(\n flatCoordinates,\n offset,\n end,\n stride,\n squaredTolerance,\n simplifiedFlatCoordinates,\n 0\n );\n flatCoordinates = simplifiedFlatCoordinates;\n offset = 0;\n stride = 2;\n }\n simplifiedFlatCoordinates.length = douglasPeucker(\n flatCoordinates,\n offset,\n end,\n stride,\n squaredTolerance,\n simplifiedFlatCoordinates,\n 0\n );\n return simplifiedFlatCoordinates;\n}\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {number} squaredTolerance Squared tolerance.\n * @param {Array<number>} simplifiedFlatCoordinates Simplified flat\n * coordinates.\n * @param {number} simplifiedOffset Simplified offset.\n * @return {number} Simplified offset.\n */\nexport function douglasPeucker(\n flatCoordinates,\n offset,\n end,\n stride,\n squaredTolerance,\n simplifiedFlatCoordinates,\n simplifiedOffset\n) {\n const n = (end - offset) / stride;\n if (n < 3) {\n for (; offset < end; offset += stride) {\n simplifiedFlatCoordinates[simplifiedOffset++] = flatCoordinates[offset];\n simplifiedFlatCoordinates[simplifiedOffset++] =\n flatCoordinates[offset + 1];\n }\n return simplifiedOffset;\n }\n /** @type {Array<number>} */\n const markers = new Array(n);\n markers[0] = 1;\n markers[n - 1] = 1;\n /** @type {Array<number>} */\n const stack = [offset, end - stride];\n let index = 0;\n while (stack.length > 0) {\n const last = stack.pop();\n const first = stack.pop();\n let maxSquaredDistance = 0;\n const x1 = flatCoordinates[first];\n const y1 = flatCoordinates[first + 1];\n const x2 = flatCoordinates[last];\n const y2 = flatCoordinates[last + 1];\n for (let i = first + stride; i < last; i += stride) {\n const x = flatCoordinates[i];\n const y = flatCoordinates[i + 1];\n const squaredDistance = squaredSegmentDistance(x, y, x1, y1, x2, y2);\n if (squaredDistance > maxSquaredDistance) {\n index = i;\n maxSquaredDistance = squaredDistance;\n }\n }\n if (maxSquaredDistance > squaredTolerance) {\n markers[(index - offset) / stride] = 1;\n if (first + stride < index) {\n stack.push(first, index);\n }\n if (index + stride < last) {\n stack.push(index, last);\n }\n }\n }\n for (let i = 0; i < n; ++i) {\n if (markers[i]) {\n simplifiedFlatCoordinates[simplifiedOffset++] =\n flatCoordinates[offset + i * stride];\n simplifiedFlatCoordinates[simplifiedOffset++] =\n flatCoordinates[offset + i * stride + 1];\n }\n }\n return simplifiedOffset;\n}\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array<number>} ends Ends.\n * @param {number} stride Stride.\n * @param {number} squaredTolerance Squared tolerance.\n * @param {Array<number>} simplifiedFlatCoordinates Simplified flat\n * coordinates.\n * @param {number} simplifiedOffset Simplified offset.\n * @param {Array<number>} simplifiedEnds Simplified ends.\n * @return {number} Simplified offset.\n */\nexport function douglasPeuckerArray(\n flatCoordinates,\n offset,\n ends,\n stride,\n squaredTolerance,\n simplifiedFlatCoordinates,\n simplifiedOffset,\n simplifiedEnds\n) {\n for (let i = 0, ii = ends.length; i < ii; ++i) {\n const end = ends[i];\n simplifiedOffset = douglasPeucker(\n flatCoordinates,\n offset,\n end,\n stride,\n squaredTolerance,\n simplifiedFlatCoordinates,\n simplifiedOffset\n );\n simplifiedEnds.push(simplifiedOffset);\n offset = end;\n }\n return simplifiedOffset;\n}\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array<Array<number>>} endss Endss.\n * @param {number} stride Stride.\n * @param {number} squaredTolerance Squared tolerance.\n * @param {Array<number>} simplifiedFlatCoordinates Simplified flat\n * coordinates.\n * @param {number} simplifiedOffset Simplified offset.\n * @param {Array<Array<number>>} simplifiedEndss Simplified endss.\n * @return {number} Simplified offset.\n */\nexport function douglasPeuckerMultiArray(\n flatCoordinates,\n offset,\n endss,\n stride,\n squaredTolerance,\n simplifiedFlatCoordinates,\n simplifiedOffset,\n simplifiedEndss\n) {\n for (let i = 0, ii = endss.length; i < ii; ++i) {\n const ends = endss[i];\n const simplifiedEnds = [];\n simplifiedOffset = douglasPeuckerArray(\n flatCoordinates,\n offset,\n ends,\n stride,\n squaredTolerance,\n simplifiedFlatCoordinates,\n simplifiedOffset,\n simplifiedEnds\n );\n simplifiedEndss.push(simplifiedEnds);\n offset = ends[ends.length - 1];\n }\n return simplifiedOffset;\n}\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {number} squaredTolerance Squared tolerance.\n * @param {Array<number>} simplifiedFlatCoordinates Simplified flat\n * coordinates.\n * @param {number} simplifiedOffset Simplified offset.\n * @return {number} Simplified offset.\n */\nexport function radialDistance(\n flatCoordinates,\n offset,\n end,\n stride,\n squaredTolerance,\n simplifiedFlatCoordinates,\n simplifiedOffset\n) {\n if (end <= offset + stride) {\n // zero or one point, no simplification possible, so copy and return\n for (; offset < end; offset += stride) {\n simplifiedFlatCoordinates[simplifiedOffset++] = flatCoordinates[offset];\n simplifiedFlatCoordinates[simplifiedOffset++] =\n flatCoordinates[offset + 1];\n }\n return simplifiedOffset;\n }\n let x1 = flatCoordinates[offset];\n let y1 = flatCoordinates[offset + 1];\n // copy first point\n simplifiedFlatCoordinates[simplifiedOffset++] = x1;\n simplifiedFlatCoordinates[simplifiedOffset++] = y1;\n let x2 = x1;\n let y2 = y1;\n for (offset += stride; offset < end; offset += stride) {\n x2 = flatCoordinates[offset];\n y2 = flatCoordinates[offset + 1];\n if (squaredDistance(x1, y1, x2, y2) > squaredTolerance) {\n // copy point at offset\n simplifiedFlatCoordinates[simplifiedOffset++] = x2;\n simplifiedFlatCoordinates[simplifiedOffset++] = y2;\n x1 = x2;\n y1 = y2;\n }\n }\n if (x2 != x1 || y2 != y1) {\n // copy last point\n simplifiedFlatCoordinates[simplifiedOffset++] = x2;\n simplifiedFlatCoordinates[simplifiedOffset++] = y2;\n }\n return simplifiedOffset;\n}\n\n/**\n * @param {number} value Value.\n * @param {number} tolerance Tolerance.\n * @return {number} Rounded value.\n */\nexport function snap(value, tolerance) {\n return tolerance * Math.round(value / tolerance);\n}\n\n/**\n * Simplifies a line string using an algorithm designed by Tim Schaub.\n * Coordinates are snapped to the nearest value in a virtual grid and\n * consecutive duplicate coordinates are discarded. This effectively preserves\n * topology as the simplification of any subsection of a line string is\n * independent of the rest of the line string. This means that, for examples,\n * the common edge between two polygons will be simplified to the same line\n * string independently in both polygons. This implementation uses a single\n * pass over the coordinates and eliminates intermediate collinear points.\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {number} tolerance Tolerance.\n * @param {Array<number>} simplifiedFlatCoordinates Simplified flat\n * coordinates.\n * @param {number} simplifiedOffset Simplified offset.\n * @return {number} Simplified offset.\n */\nexport function quantize(\n flatCoordinates,\n offset,\n end,\n stride,\n tolerance,\n simplifiedFlatCoordinates,\n simplifiedOffset\n) {\n // do nothing if the line is empty\n if (offset == end) {\n return simplifiedOffset;\n }\n // snap the first coordinate (P1)\n let x1 = snap(flatCoordinates[offset], tolerance);\n let y1 = snap(flatCoordinates[offset + 1], tolerance);\n offset += stride;\n // add the first coordinate to the output\n simplifiedFlatCoordinates[simplifiedOffset++] = x1;\n simplifiedFlatCoordinates[simplifiedOffset++] = y1;\n // find the next coordinate that does not snap to the same value as the first\n // coordinate (P2)\n let x2, y2;\n do {\n x2 = snap(flatCoordinates[offset], tolerance);\n y2 = snap(flatCoordinates[offset + 1], tolerance);\n offset += stride;\n if (offset == end) {\n // all coordinates snap to the same value, the line collapses to a point\n // push the last snapped value anyway to ensure that the output contains\n // at least two points\n // FIXME should we really return at least two points anyway?\n simplifiedFlatCoordinates[simplifiedOffset++] = x2;\n simplifiedFlatCoordinates[simplifiedOffset++] = y2;\n return simplifiedOffset;\n }\n } while (x2 == x1 && y2 == y1);\n while (offset < end) {\n // snap the next coordinate (P3)\n const x3 = snap(flatCoordinates[offset], tolerance);\n const y3 = snap(flatCoordinates[offset + 1], tolerance);\n offset += stride;\n // skip P3 if it is equal to P2\n if (x3 == x2 && y3 == y2) {\n continue;\n }\n // calculate the delta between P1 and P2\n const dx1 = x2 - x1;\n const dy1 = y2 - y1;\n // calculate the delta between P3 and P1\n const dx2 = x3 - x1;\n const dy2 = y3 - y1;\n // if P1, P2, and P3 are colinear and P3 is further from P1 than P2 is from\n // P1 in the same direction then P2 is on the straight line between P1 and\n // P3\n if (\n dx1 * dy2 == dy1 * dx2 &&\n ((dx1 < 0 && dx2 < dx1) || dx1 == dx2 || (dx1 > 0 && dx2 > dx1)) &&\n ((dy1 < 0 && dy2 < dy1) || dy1 == dy2 || (dy1 > 0 && dy2 > dy1))\n ) {\n // discard P2 and set P2 = P3\n x2 = x3;\n y2 = y3;\n continue;\n }\n // either P1, P2, and P3 are not colinear, or they are colinear but P3 is\n // between P3 and P1 or on the opposite half of the line to P2. add P2,\n // and continue with P1 = P2 and P2 = P3\n simplifiedFlatCoordinates[simplifiedOffset++] = x2;\n simplifiedFlatCoordinates[simplifiedOffset++] = y2;\n x1 = x2;\n y1 = y2;\n x2 = x3;\n y2 = y3;\n }\n // add the last point (P2)\n simplifiedFlatCoordinates[simplifiedOffset++] = x2;\n simplifiedFlatCoordinates[simplifiedOffset++] = y2;\n return simplifiedOffset;\n}\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array<number>} ends Ends.\n * @param {number} stride Stride.\n * @param {number} tolerance Tolerance.\n * @param {Array<number>} simplifiedFlatCoordinates Simplified flat\n * coordinates.\n * @param {number} simplifiedOffset Simplified offset.\n * @param {Array<number>} simplifiedEnds Simplified ends.\n * @return {number} Simplified offset.\n */\nexport function quantizeArray(\n flatCoordinates,\n offset,\n ends,\n stride,\n tolerance,\n simplifiedFlatCoordinates,\n simplifiedOffset,\n simplifiedEnds\n) {\n for (let i = 0, ii = ends.length; i < ii; ++i) {\n const end = ends[i];\n simplifiedOffset = quantize(\n flatCoordinates,\n offset,\n end,\n stride,\n tolerance,\n simplifiedFlatCoordinates,\n simplifiedOffset\n );\n simplifiedEnds.push(simplifiedOffset);\n offset = end;\n }\n return simplifiedOffset;\n}\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array<Array<number>>} endss Endss.\n * @param {number} stride Stride.\n * @param {number} tolerance Tolerance.\n * @param {Array<number>} simplifiedFlatCoordinates Simplified flat\n * coordinates.\n * @param {number} simplifiedOffset Simplified offset.\n * @param {Array<Array<number>>} simplifiedEndss Simplified endss.\n * @return {number} Simplified offset.\n */\nexport function quantizeMultiArray(\n flatCoordinates,\n offset,\n endss,\n stride,\n tolerance,\n simplifiedFlatCoordinates,\n simplifiedOffset,\n simplifiedEndss\n) {\n for (let i = 0, ii = endss.length; i < ii; ++i) {\n const ends = endss[i];\n const simplifiedEnds = [];\n simplifiedOffset = quantizeArray(\n flatCoordinates,\n offset,\n ends,\n stride,\n tolerance,\n simplifiedFlatCoordinates,\n simplifiedOffset,\n simplifiedEnds\n );\n simplifiedEndss.push(simplifiedEnds);\n offset = ends[ends.length - 1];\n }\n return simplifiedOffset;\n}\n","/**\n * @module ol/geom/flat/inflate\n */\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {Array<import(\"../../coordinate.js\").Coordinate>=} opt_coordinates Coordinates.\n * @return {Array<import(\"../../coordinate.js\").Coordinate>} Coordinates.\n */\nexport function inflateCoordinates(\n flatCoordinates,\n offset,\n end,\n stride,\n opt_coordinates\n) {\n const coordinates = opt_coordinates !== undefined ? opt_coordinates : [];\n let i = 0;\n for (let j = offset; j < end; j += stride) {\n coordinates[i++] = flatCoordinates.slice(j, j + stride);\n }\n coordinates.length = i;\n return coordinates;\n}\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array<number>} ends Ends.\n * @param {number} stride Stride.\n * @param {Array<Array<import(\"../../coordinate.js\").Coordinate>>=} opt_coordinatess Coordinatess.\n * @return {Array<Array<import(\"../../coordinate.js\").Coordinate>>} Coordinatess.\n */\nexport function inflateCoordinatesArray(\n flatCoordinates,\n offset,\n ends,\n stride,\n opt_coordinatess\n) {\n const coordinatess = opt_coordinatess !== undefined ? opt_coordinatess : [];\n let i = 0;\n for (let j = 0, jj = ends.length; j < jj; ++j) {\n const end = ends[j];\n coordinatess[i++] = inflateCoordinates(\n flatCoordinates,\n offset,\n end,\n stride,\n coordinatess[i]\n );\n offset = end;\n }\n coordinatess.length = i;\n return coordinatess;\n}\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array<Array<number>>} endss Endss.\n * @param {number} stride Stride.\n * @param {Array<Array<Array<import(\"../../coordinate.js\").Coordinate>>>=} opt_coordinatesss\n * Coordinatesss.\n * @return {Array<Array<Array<import(\"../../coordinate.js\").Coordinate>>>} Coordinatesss.\n */\nexport function inflateMultiCoordinatesArray(\n flatCoordinates,\n offset,\n endss,\n stride,\n opt_coordinatesss\n) {\n const coordinatesss =\n opt_coordinatesss !== undefined ? opt_coordinatesss : [];\n let i = 0;\n for (let j = 0, jj = endss.length; j < jj; ++j) {\n const ends = endss[j];\n coordinatesss[i++] = inflateCoordinatesArray(\n flatCoordinates,\n offset,\n ends,\n stride,\n coordinatesss[i]\n );\n offset = ends[ends.length - 1];\n }\n coordinatesss.length = i;\n return coordinatesss;\n}\n","/**\n * @module ol/geom/flat/area\n */\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @return {number} Area.\n */\nexport function linearRing(flatCoordinates, offset, end, stride) {\n let twiceArea = 0;\n let x1 = flatCoordinates[end - stride];\n let y1 = flatCoordinates[end - stride + 1];\n for (; offset < end; offset += stride) {\n const x2 = flatCoordinates[offset];\n const y2 = flatCoordinates[offset + 1];\n twiceArea += y1 * x2 - x1 * y2;\n x1 = x2;\n y1 = y2;\n }\n return twiceArea / 2;\n}\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array<number>} ends Ends.\n * @param {number} stride Stride.\n * @return {number} Area.\n */\nexport function linearRings(flatCoordinates, offset, ends, stride) {\n let area = 0;\n for (let i = 0, ii = ends.length; i < ii; ++i) {\n const end = ends[i];\n area += linearRing(flatCoordinates, offset, end, stride);\n offset = end;\n }\n return area;\n}\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array<Array<number>>} endss Endss.\n * @param {number} stride Stride.\n * @return {number} Area.\n */\nexport function linearRingss(flatCoordinates, offset, endss, stride) {\n let area = 0;\n for (let i = 0, ii = endss.length; i < ii; ++i) {\n const ends = endss[i];\n area += linearRings(flatCoordinates, offset, ends, stride);\n offset = ends[ends.length - 1];\n }\n return area;\n}\n","/**\n * @module ol/geom/LinearRing\n */\nimport GeometryLayout from './GeometryLayout.js';\nimport GeometryType from './GeometryType.js';\nimport SimpleGeometry from './SimpleGeometry.js';\nimport {assignClosestPoint, maxSquaredDelta} from './flat/closest.js';\nimport {closestSquaredDistanceXY} from '../extent.js';\nimport {deflateCoordinates} from './flat/deflate.js';\nimport {douglasPeucker} from './flat/simplify.js';\nimport {inflateCoordinates} from './flat/inflate.js';\nimport {linearRing as linearRingArea} from './flat/area.js';\n\n/**\n * @classdesc\n * Linear ring geometry. Only used as part of polygon; cannot be rendered\n * on its own.\n *\n * @api\n */\nclass LinearRing extends SimpleGeometry {\n /**\n * @param {Array<import(\"../coordinate.js\").Coordinate>|Array<number>} coordinates Coordinates.\n * For internal use, flat coordinates in combination with `opt_layout` are also accepted.\n * @param {import(\"./GeometryLayout.js\").default=} opt_layout Layout.\n */\n constructor(coordinates, opt_layout) {\n super();\n\n /**\n * @private\n * @type {number}\n */\n this.maxDelta_ = -1;\n\n /**\n * @private\n * @type {number}\n */\n this.maxDeltaRevision_ = -1;\n\n if (opt_layout !== undefined && !Array.isArray(coordinates[0])) {\n this.setFlatCoordinates(\n opt_layout,\n /** @type {Array<number>} */ (coordinates)\n );\n } else {\n this.setCoordinates(\n /** @type {Array<import(\"../coordinate.js\").Coordinate>} */ (coordinates),\n opt_layout\n );\n }\n }\n\n /**\n * Make a complete copy of the geometry.\n * @return {!LinearRing} Clone.\n * @api\n */\n clone() {\n return new LinearRing(this.flatCoordinates.slice(), this.layout);\n }\n\n /**\n * @param {number} x X.\n * @param {number} y Y.\n * @param {import(\"../coordinate.js\").Coordinate} closestPoint Closest point.\n * @param {number} minSquaredDistance Minimum squared distance.\n * @return {number} Minimum squared distance.\n */\n closestPointXY(x, y, closestPoint, minSquaredDistance) {\n if (minSquaredDistance < closestSquaredDistanceXY(this.getExtent(), x, y)) {\n return minSquaredDistance;\n }\n if (this.maxDeltaRevision_ != this.getRevision()) {\n this.maxDelta_ = Math.sqrt(\n maxSquaredDelta(\n this.flatCoordinates,\n 0,\n this.flatCoordinates.length,\n this.stride,\n 0\n )\n );\n this.maxDeltaRevision_ = this.getRevision();\n }\n return assignClosestPoint(\n this.flatCoordinates,\n 0,\n this.flatCoordinates.length,\n this.stride,\n this.maxDelta_,\n true,\n x,\n y,\n closestPoint,\n minSquaredDistance\n );\n }\n\n /**\n * Return the area of the linear ring on projected plane.\n * @return {number} Area (on projected plane).\n * @api\n */\n getArea() {\n return linearRingArea(\n this.flatCoordinates,\n 0,\n this.flatCoordinates.length,\n this.stride\n );\n }\n\n /**\n * Return the coordinates of the linear ring.\n * @return {Array<import(\"../coordinate.js\").Coordinate>} Coordinates.\n * @api\n */\n getCoordinates() {\n return inflateCoordinates(\n this.flatCoordinates,\n 0,\n this.flatCoordinates.length,\n this.stride\n );\n }\n\n /**\n * @param {number} squaredTolerance Squared tolerance.\n * @return {LinearRing} Simplified LinearRing.\n * @protected\n */\n getSimplifiedGeometryInternal(squaredTolerance) {\n const simplifiedFlatCoordinates = [];\n simplifiedFlatCoordinates.length = douglasPeucker(\n this.flatCoordinates,\n 0,\n this.flatCoordinates.length,\n this.stride,\n squaredTolerance,\n simplifiedFlatCoordinates,\n 0\n );\n return new LinearRing(simplifiedFlatCoordinates, GeometryLayout.XY);\n }\n\n /**\n * Get the type of this geometry.\n * @return {import(\"./GeometryType.js\").default} Geometry type.\n * @api\n */\n getType() {\n return GeometryType.LINEAR_RING;\n }\n\n /**\n * Test if the geometry and the passed extent intersect.\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @return {boolean} `true` if the geometry and the extent intersect.\n * @api\n */\n intersectsExtent(extent) {\n return false;\n }\n\n /**\n * Set the coordinates of the linear ring.\n * @param {!Array<import(\"../coordinate.js\").Coordinate>} coordinates Coordinates.\n * @param {import(\"./GeometryLayout.js\").default=} opt_layout Layout.\n * @api\n */\n setCoordinates(coordinates, opt_layout) {\n this.setLayout(opt_layout, coordinates, 1);\n if (!this.flatCoordinates) {\n this.flatCoordinates = [];\n }\n this.flatCoordinates.length = deflateCoordinates(\n this.flatCoordinates,\n 0,\n coordinates,\n this.stride\n );\n this.changed();\n }\n}\n\nexport default LinearRing;\n","/**\n * @module ol/geom/Point\n */\nimport GeometryType from './GeometryType.js';\nimport SimpleGeometry from './SimpleGeometry.js';\nimport {containsXY, createOrUpdateFromCoordinate} from '../extent.js';\nimport {deflateCoordinate} from './flat/deflate.js';\nimport {squaredDistance as squaredDx} from '../math.js';\n\n/**\n * @classdesc\n * Point geometry.\n *\n * @api\n */\nclass Point extends SimpleGeometry {\n /**\n * @param {import(\"../coordinate.js\").Coordinate} coordinates Coordinates.\n * @param {import(\"./GeometryLayout.js\").default=} opt_layout Layout.\n */\n constructor(coordinates, opt_layout) {\n super();\n this.setCoordinates(coordinates, opt_layout);\n }\n\n /**\n * Make a complete copy of the geometry.\n * @return {!Point} Clone.\n * @api\n */\n clone() {\n const point = new Point(this.flatCoordinates.slice(), this.layout);\n return point;\n }\n\n /**\n * @param {number} x X.\n * @param {number} y Y.\n * @param {import(\"../coordinate.js\").Coordinate} closestPoint Closest point.\n * @param {number} minSquaredDistance Minimum squared distance.\n * @return {number} Minimum squared distance.\n */\n closestPointXY(x, y, closestPoint, minSquaredDistance) {\n const flatCoordinates = this.flatCoordinates;\n const squaredDistance = squaredDx(\n x,\n y,\n flatCoordinates[0],\n flatCoordinates[1]\n );\n if (squaredDistance < minSquaredDistance) {\n const stride = this.stride;\n for (let i = 0; i < stride; ++i) {\n closestPoint[i] = flatCoordinates[i];\n }\n closestPoint.length = stride;\n return squaredDistance;\n } else {\n return minSquaredDistance;\n }\n }\n\n /**\n * Return the coordinate of the point.\n * @return {import(\"../coordinate.js\").Coordinate} Coordinates.\n * @api\n */\n getCoordinates() {\n return !this.flatCoordinates ? [] : this.flatCoordinates.slice();\n }\n\n /**\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @protected\n * @return {import(\"../extent.js\").Extent} extent Extent.\n */\n computeExtent(extent) {\n return createOrUpdateFromCoordinate(this.flatCoordinates, extent);\n }\n\n /**\n * Get the type of this geometry.\n * @return {import(\"./GeometryType.js\").default} Geometry type.\n * @api\n */\n getType() {\n return GeometryType.POINT;\n }\n\n /**\n * Test if the geometry and the passed extent intersect.\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @return {boolean} `true` if the geometry and the extent intersect.\n * @api\n */\n intersectsExtent(extent) {\n return containsXY(extent, this.flatCoordinates[0], this.flatCoordinates[1]);\n }\n\n /**\n * @param {!Array<*>} coordinates Coordinates.\n * @param {import(\"./GeometryLayout.js\").default=} opt_layout Layout.\n * @api\n */\n setCoordinates(coordinates, opt_layout) {\n this.setLayout(opt_layout, coordinates, 0);\n if (!this.flatCoordinates) {\n this.flatCoordinates = [];\n }\n this.flatCoordinates.length = deflateCoordinate(\n this.flatCoordinates,\n 0,\n coordinates,\n this.stride\n );\n this.changed();\n }\n}\n\nexport default Point;\n","/**\n * @module ol/geom/flat/contains\n */\nimport {forEachCorner} from '../../extent.js';\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {import(\"../../extent.js\").Extent} extent Extent.\n * @return {boolean} Contains extent.\n */\nexport function linearRingContainsExtent(\n flatCoordinates,\n offset,\n end,\n stride,\n extent\n) {\n const outside = forEachCorner(\n extent,\n /**\n * @param {import(\"../../coordinate.js\").Coordinate} coordinate Coordinate.\n * @return {boolean} Contains (x, y).\n */\n function (coordinate) {\n return !linearRingContainsXY(\n flatCoordinates,\n offset,\n end,\n stride,\n coordinate[0],\n coordinate[1]\n );\n }\n );\n return !outside;\n}\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {number} x X.\n * @param {number} y Y.\n * @return {boolean} Contains (x, y).\n */\nexport function linearRingContainsXY(\n flatCoordinates,\n offset,\n end,\n stride,\n x,\n y\n) {\n // http://geomalgorithms.com/a03-_inclusion.html\n // Copyright 2000 softSurfer, 2012 Dan Sunday\n // This code may be freely used and modified for any purpose\n // providing that this copyright notice is included with it.\n // SoftSurfer makes no warranty for this code, and cannot be held\n // liable for any real or imagined damage resulting from its use.\n // Users of this code must verify correctness for their application.\n let wn = 0;\n let x1 = flatCoordinates[end - stride];\n let y1 = flatCoordinates[end - stride + 1];\n for (; offset < end; offset += stride) {\n const x2 = flatCoordinates[offset];\n const y2 = flatCoordinates[offset + 1];\n if (y1 <= y) {\n if (y2 > y && (x2 - x1) * (y - y1) - (x - x1) * (y2 - y1) > 0) {\n wn++;\n }\n } else if (y2 <= y && (x2 - x1) * (y - y1) - (x - x1) * (y2 - y1) < 0) {\n wn--;\n }\n x1 = x2;\n y1 = y2;\n }\n return wn !== 0;\n}\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array<number>} ends Ends.\n * @param {number} stride Stride.\n * @param {number} x X.\n * @param {number} y Y.\n * @return {boolean} Contains (x, y).\n */\nexport function linearRingsContainsXY(\n flatCoordinates,\n offset,\n ends,\n stride,\n x,\n y\n) {\n if (ends.length === 0) {\n return false;\n }\n if (!linearRingContainsXY(flatCoordinates, offset, ends[0], stride, x, y)) {\n return false;\n }\n for (let i = 1, ii = ends.length; i < ii; ++i) {\n if (\n linearRingContainsXY(flatCoordinates, ends[i - 1], ends[i], stride, x, y)\n ) {\n return false;\n }\n }\n return true;\n}\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array<Array<number>>} endss Endss.\n * @param {number} stride Stride.\n * @param {number} x X.\n * @param {number} y Y.\n * @return {boolean} Contains (x, y).\n */\nexport function linearRingssContainsXY(\n flatCoordinates,\n offset,\n endss,\n stride,\n x,\n y\n) {\n if (endss.length === 0) {\n return false;\n }\n for (let i = 0, ii = endss.length; i < ii; ++i) {\n const ends = endss[i];\n if (linearRingsContainsXY(flatCoordinates, offset, ends, stride, x, y)) {\n return true;\n }\n offset = ends[ends.length - 1];\n }\n return false;\n}\n","/**\n * @module ol/geom/flat/interiorpoint\n */\nimport {linearRingsContainsXY} from './contains.js';\nimport {numberSafeCompareFunction} from '../../array.js';\n\n/**\n * Calculates a point that is likely to lie in the interior of the linear rings.\n * Inspired by JTS's com.vividsolutions.jts.geom.Geometry#getInteriorPoint.\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array<number>} ends Ends.\n * @param {number} stride Stride.\n * @param {Array<number>} flatCenters Flat centers.\n * @param {number} flatCentersOffset Flat center offset.\n * @param {Array<number>=} opt_dest Destination.\n * @return {Array<number>} Destination point as XYM coordinate, where M is the\n * length of the horizontal intersection that the point belongs to.\n */\nexport function getInteriorPointOfArray(\n flatCoordinates,\n offset,\n ends,\n stride,\n flatCenters,\n flatCentersOffset,\n opt_dest\n) {\n let i, ii, x, x1, x2, y1, y2;\n const y = flatCenters[flatCentersOffset + 1];\n /** @type {Array<number>} */\n const intersections = [];\n // Calculate intersections with the horizontal line\n for (let r = 0, rr = ends.length; r < rr; ++r) {\n const end = ends[r];\n x1 = flatCoordinates[end - stride];\n y1 = flatCoordinates[end - stride + 1];\n for (i = offset; i < end; i += stride) {\n x2 = flatCoordinates[i];\n y2 = flatCoordinates[i + 1];\n if ((y <= y1 && y2 <= y) || (y1 <= y && y <= y2)) {\n x = ((y - y1) / (y2 - y1)) * (x2 - x1) + x1;\n intersections.push(x);\n }\n x1 = x2;\n y1 = y2;\n }\n }\n // Find the longest segment of the horizontal line that has its center point\n // inside the linear ring.\n let pointX = NaN;\n let maxSegmentLength = -Infinity;\n intersections.sort(numberSafeCompareFunction);\n x1 = intersections[0];\n for (i = 1, ii = intersections.length; i < ii; ++i) {\n x2 = intersections[i];\n const segmentLength = Math.abs(x2 - x1);\n if (segmentLength > maxSegmentLength) {\n x = (x1 + x2) / 2;\n if (linearRingsContainsXY(flatCoordinates, offset, ends, stride, x, y)) {\n pointX = x;\n maxSegmentLength = segmentLength;\n }\n }\n x1 = x2;\n }\n if (isNaN(pointX)) {\n // There is no horizontal line that has its center point inside the linear\n // ring. Use the center of the the linear ring's extent.\n pointX = flatCenters[flatCentersOffset];\n }\n if (opt_dest) {\n opt_dest.push(pointX, y, maxSegmentLength);\n return opt_dest;\n } else {\n return [pointX, y, maxSegmentLength];\n }\n}\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array<Array<number>>} endss Endss.\n * @param {number} stride Stride.\n * @param {Array<number>} flatCenters Flat centers.\n * @return {Array<number>} Interior points as XYM coordinates, where M is the\n * length of the horizontal intersection that the point belongs to.\n */\nexport function getInteriorPointsOfMultiArray(\n flatCoordinates,\n offset,\n endss,\n stride,\n flatCenters\n) {\n let interiorPoints = [];\n for (let i = 0, ii = endss.length; i < ii; ++i) {\n const ends = endss[i];\n interiorPoints = getInteriorPointOfArray(\n flatCoordinates,\n offset,\n ends,\n stride,\n flatCenters,\n 2 * i,\n interiorPoints\n );\n offset = ends[ends.length - 1];\n }\n return interiorPoints;\n}\n","/**\n * @module ol/geom/flat/segments\n */\n\n/**\n * This function calls `callback` for each segment of the flat coordinates\n * array. If the callback returns a truthy value the function returns that\n * value immediately. Otherwise the function returns `false`.\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {function(import(\"../../coordinate.js\").Coordinate, import(\"../../coordinate.js\").Coordinate): T} callback Function\n * called for each segment.\n * @return {T|boolean} Value.\n * @template T\n */\nexport function forEach(flatCoordinates, offset, end, stride, callback) {\n const point1 = [flatCoordinates[offset], flatCoordinates[offset + 1]];\n const point2 = [];\n let ret;\n for (; offset + stride < end; offset += stride) {\n point2[0] = flatCoordinates[offset + stride];\n point2[1] = flatCoordinates[offset + stride + 1];\n ret = callback(point1, point2);\n if (ret) {\n return ret;\n }\n point1[0] = point2[0];\n point1[1] = point2[1];\n }\n return false;\n}\n","/**\n * @module ol/geom/flat/intersectsextent\n */\nimport {\n containsExtent,\n createEmpty,\n extendFlatCoordinates,\n intersects,\n intersectsSegment,\n} from '../../extent.js';\nimport {forEach as forEachSegment} from './segments.js';\nimport {linearRingContainsExtent, linearRingContainsXY} from './contains.js';\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {import(\"../../extent.js\").Extent} extent Extent.\n * @return {boolean} True if the geometry and the extent intersect.\n */\nexport function intersectsLineString(\n flatCoordinates,\n offset,\n end,\n stride,\n extent\n) {\n const coordinatesExtent = extendFlatCoordinates(\n createEmpty(),\n flatCoordinates,\n offset,\n end,\n stride\n );\n if (!intersects(extent, coordinatesExtent)) {\n return false;\n }\n if (containsExtent(extent, coordinatesExtent)) {\n return true;\n }\n if (coordinatesExtent[0] >= extent[0] && coordinatesExtent[2] <= extent[2]) {\n return true;\n }\n if (coordinatesExtent[1] >= extent[1] && coordinatesExtent[3] <= extent[3]) {\n return true;\n }\n return forEachSegment(\n flatCoordinates,\n offset,\n end,\n stride,\n /**\n * @param {import(\"../../coordinate.js\").Coordinate} point1 Start point.\n * @param {import(\"../../coordinate.js\").Coordinate} point2 End point.\n * @return {boolean} `true` if the segment and the extent intersect,\n * `false` otherwise.\n */\n function (point1, point2) {\n return intersectsSegment(extent, point1, point2);\n }\n );\n}\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array<number>} ends Ends.\n * @param {number} stride Stride.\n * @param {import(\"../../extent.js\").Extent} extent Extent.\n * @return {boolean} True if the geometry and the extent intersect.\n */\nexport function intersectsLineStringArray(\n flatCoordinates,\n offset,\n ends,\n stride,\n extent\n) {\n for (let i = 0, ii = ends.length; i < ii; ++i) {\n if (\n intersectsLineString(flatCoordinates, offset, ends[i], stride, extent)\n ) {\n return true;\n }\n offset = ends[i];\n }\n return false;\n}\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {import(\"../../extent.js\").Extent} extent Extent.\n * @return {boolean} True if the geometry and the extent intersect.\n */\nexport function intersectsLinearRing(\n flatCoordinates,\n offset,\n end,\n stride,\n extent\n) {\n if (intersectsLineString(flatCoordinates, offset, end, stride, extent)) {\n return true;\n }\n if (\n linearRingContainsXY(\n flatCoordinates,\n offset,\n end,\n stride,\n extent[0],\n extent[1]\n )\n ) {\n return true;\n }\n if (\n linearRingContainsXY(\n flatCoordinates,\n offset,\n end,\n stride,\n extent[0],\n extent[3]\n )\n ) {\n return true;\n }\n if (\n linearRingContainsXY(\n flatCoordinates,\n offset,\n end,\n stride,\n extent[2],\n extent[1]\n )\n ) {\n return true;\n }\n if (\n linearRingContainsXY(\n flatCoordinates,\n offset,\n end,\n stride,\n extent[2],\n extent[3]\n )\n ) {\n return true;\n }\n return false;\n}\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array<number>} ends Ends.\n * @param {number} stride Stride.\n * @param {import(\"../../extent.js\").Extent} extent Extent.\n * @return {boolean} True if the geometry and the extent intersect.\n */\nexport function intersectsLinearRingArray(\n flatCoordinates,\n offset,\n ends,\n stride,\n extent\n) {\n if (!intersectsLinearRing(flatCoordinates, offset, ends[0], stride, extent)) {\n return false;\n }\n if (ends.length === 1) {\n return true;\n }\n for (let i = 1, ii = ends.length; i < ii; ++i) {\n if (\n linearRingContainsExtent(\n flatCoordinates,\n ends[i - 1],\n ends[i],\n stride,\n extent\n )\n ) {\n if (\n !intersectsLineString(\n flatCoordinates,\n ends[i - 1],\n ends[i],\n stride,\n extent\n )\n ) {\n return false;\n }\n }\n }\n return true;\n}\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array<Array<number>>} endss Endss.\n * @param {number} stride Stride.\n * @param {import(\"../../extent.js\").Extent} extent Extent.\n * @return {boolean} True if the geometry and the extent intersect.\n */\nexport function intersectsLinearRingMultiArray(\n flatCoordinates,\n offset,\n endss,\n stride,\n extent\n) {\n for (let i = 0, ii = endss.length; i < ii; ++i) {\n const ends = endss[i];\n if (\n intersectsLinearRingArray(flatCoordinates, offset, ends, stride, extent)\n ) {\n return true;\n }\n offset = ends[ends.length - 1];\n }\n return false;\n}\n","/**\n * @module ol/geom/flat/reverse\n */\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n */\nexport function coordinates(flatCoordinates, offset, end, stride) {\n while (offset < end - stride) {\n for (let i = 0; i < stride; ++i) {\n const tmp = flatCoordinates[offset + i];\n flatCoordinates[offset + i] = flatCoordinates[end - stride + i];\n flatCoordinates[end - stride + i] = tmp;\n }\n offset += stride;\n end -= stride;\n }\n}\n","/**\n * @module ol/geom/flat/orient\n */\nimport {coordinates as reverseCoordinates} from './reverse.js';\n\n/**\n * Is the linear ring oriented clockwise in a coordinate system with a bottom-left\n * coordinate origin? For a coordinate system with a top-left coordinate origin,\n * the ring's orientation is clockwise when this function returns false.\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @return {boolean} Is clockwise.\n */\nexport function linearRingIsClockwise(flatCoordinates, offset, end, stride) {\n // https://stackoverflow.com/a/1180256/2389327\n // https://en.wikipedia.org/wiki/Curve_orientation#Orientation_of_a_simple_polygon\n\n let firstVertexRepeated = true;\n for (let i = 0; i < stride; ++i) {\n if (flatCoordinates[offset + i] !== flatCoordinates[end - stride + i]) {\n firstVertexRepeated = false;\n break;\n }\n }\n if (firstVertexRepeated) {\n end -= stride;\n }\n const iMinVertex = findCornerVertex(flatCoordinates, offset, end, stride);\n // Orientation matrix:\n // [ 1 xa ya ]\n // O = | 1 xb yb |\n // [ 1 xc yc ]\n let iPreviousVertex = iMinVertex - stride;\n if (iPreviousVertex < offset) {\n iPreviousVertex = end - stride;\n }\n let iNextVertex = iMinVertex + stride;\n if (iNextVertex >= end) {\n iNextVertex = offset;\n }\n const aX = flatCoordinates[iPreviousVertex];\n const aY = flatCoordinates[iPreviousVertex + 1];\n const bX = flatCoordinates[iMinVertex];\n const bY = flatCoordinates[iMinVertex + 1];\n const cX = flatCoordinates[iNextVertex];\n const cY = flatCoordinates[iNextVertex + 1];\n const determinant =\n bX * cY + aX * bY + aY * cX - (aY * bX + bY * cX + aX * cY);\n\n return determinant < 0;\n}\n\n// Find vertex along one edge of bounding box.\n// In this case, we find smallest y; in case of tie also smallest x.\nfunction findCornerVertex(flatCoordinates, offset, end, stride) {\n let iMinVertex = -1;\n let minY = Infinity;\n let minXAtMinY = Infinity;\n for (let i = offset; i < end; i += stride) {\n const x = flatCoordinates[i];\n const y = flatCoordinates[i + 1];\n if (y > minY) {\n continue;\n }\n if (y == minY) {\n if (x >= minXAtMinY) {\n continue;\n }\n }\n\n // Minimum so far.\n iMinVertex = i;\n minY = y;\n minXAtMinY = x;\n }\n\n return iMinVertex;\n}\n\n/**\n * Determines if linear rings are oriented. By default, left-hand orientation\n * is tested (first ring must be clockwise, remaining rings counter-clockwise).\n * To test for right-hand orientation, use the `opt_right` argument.\n *\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array<number>} ends Array of end indexes.\n * @param {number} stride Stride.\n * @param {boolean=} opt_right Test for right-hand orientation\n * (counter-clockwise exterior ring and clockwise interior rings).\n * @return {boolean} Rings are correctly oriented.\n */\nexport function linearRingsAreOriented(\n flatCoordinates,\n offset,\n ends,\n stride,\n opt_right\n) {\n const right = opt_right !== undefined ? opt_right : false;\n for (let i = 0, ii = ends.length; i < ii; ++i) {\n const end = ends[i];\n const isClockwise = linearRingIsClockwise(\n flatCoordinates,\n offset,\n end,\n stride\n );\n if (i === 0) {\n if ((right && isClockwise) || (!right && !isClockwise)) {\n return false;\n }\n } else {\n if ((right && !isClockwise) || (!right && isClockwise)) {\n return false;\n }\n }\n offset = end;\n }\n return true;\n}\n\n/**\n * Determines if linear rings are oriented. By default, left-hand orientation\n * is tested (first ring must be clockwise, remaining rings counter-clockwise).\n * To test for right-hand orientation, use the `opt_right` argument.\n *\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array<Array<number>>} endss Array of array of end indexes.\n * @param {number} stride Stride.\n * @param {boolean=} opt_right Test for right-hand orientation\n * (counter-clockwise exterior ring and clockwise interior rings).\n * @return {boolean} Rings are correctly oriented.\n */\nexport function linearRingssAreOriented(\n flatCoordinates,\n offset,\n endss,\n stride,\n opt_right\n) {\n for (let i = 0, ii = endss.length; i < ii; ++i) {\n const ends = endss[i];\n if (\n !linearRingsAreOriented(flatCoordinates, offset, ends, stride, opt_right)\n ) {\n return false;\n }\n if (ends.length) {\n offset = ends[ends.length - 1];\n }\n }\n return true;\n}\n\n/**\n * Orient coordinates in a flat array of linear rings. By default, rings\n * are oriented following the left-hand rule (clockwise for exterior and\n * counter-clockwise for interior rings). To orient according to the\n * right-hand rule, use the `opt_right` argument.\n *\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array<number>} ends Ends.\n * @param {number} stride Stride.\n * @param {boolean=} opt_right Follow the right-hand rule for orientation.\n * @return {number} End.\n */\nexport function orientLinearRings(\n flatCoordinates,\n offset,\n ends,\n stride,\n opt_right\n) {\n const right = opt_right !== undefined ? opt_right : false;\n for (let i = 0, ii = ends.length; i < ii; ++i) {\n const end = ends[i];\n const isClockwise = linearRingIsClockwise(\n flatCoordinates,\n offset,\n end,\n stride\n );\n const reverse =\n i === 0\n ? (right && isClockwise) || (!right && !isClockwise)\n : (right && !isClockwise) || (!right && isClockwise);\n if (reverse) {\n reverseCoordinates(flatCoordinates, offset, end, stride);\n }\n offset = end;\n }\n return offset;\n}\n\n/**\n * Orient coordinates in a flat array of linear rings. By default, rings\n * are oriented following the left-hand rule (clockwise for exterior and\n * counter-clockwise for interior rings). To orient according to the\n * right-hand rule, use the `opt_right` argument.\n *\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array<Array<number>>} endss Array of array of end indexes.\n * @param {number} stride Stride.\n * @param {boolean=} opt_right Follow the right-hand rule for orientation.\n * @return {number} End.\n */\nexport function orientLinearRingsArray(\n flatCoordinates,\n offset,\n endss,\n stride,\n opt_right\n) {\n for (let i = 0, ii = endss.length; i < ii; ++i) {\n offset = orientLinearRings(\n flatCoordinates,\n offset,\n endss[i],\n stride,\n opt_right\n );\n }\n return offset;\n}\n","/**\n * @module ol/geom/Polygon\n */\nimport GeometryLayout from './GeometryLayout.js';\nimport GeometryType from './GeometryType.js';\nimport LinearRing from './LinearRing.js';\nimport Point from './Point.js';\nimport SimpleGeometry from './SimpleGeometry.js';\nimport {arrayMaxSquaredDelta, assignClosestArrayPoint} from './flat/closest.js';\nimport {closestSquaredDistanceXY, getCenter} from '../extent.js';\nimport {deflateCoordinatesArray} from './flat/deflate.js';\nimport {extend} from '../array.js';\nimport {getInteriorPointOfArray} from './flat/interiorpoint.js';\nimport {inflateCoordinatesArray} from './flat/inflate.js';\nimport {intersectsLinearRingArray} from './flat/intersectsextent.js';\nimport {linearRingsAreOriented, orientLinearRings} from './flat/orient.js';\nimport {linearRings as linearRingsArea} from './flat/area.js';\nimport {linearRingsContainsXY} from './flat/contains.js';\nimport {modulo} from '../math.js';\nimport {quantizeArray} from './flat/simplify.js';\nimport {offset as sphereOffset} from '../sphere.js';\n\n/**\n * @classdesc\n * Polygon geometry.\n *\n * @api\n */\nclass Polygon extends SimpleGeometry {\n /**\n * @param {!Array<Array<import(\"../coordinate.js\").Coordinate>>|!Array<number>} coordinates\n * Array of linear rings that define the polygon. The first linear ring of the\n * array defines the outer-boundary or surface of the polygon. Each subsequent\n * linear ring defines a hole in the surface of the polygon. A linear ring is\n * an array of vertices' coordinates where the first coordinate and the last are\n * equivalent. (For internal use, flat coordinates in combination with\n * `opt_layout` and `opt_ends` are also accepted.)\n * @param {import(\"./GeometryLayout.js\").default=} opt_layout Layout.\n * @param {Array<number>=} opt_ends Ends (for internal use with flat coordinates).\n */\n constructor(coordinates, opt_layout, opt_ends) {\n super();\n\n /**\n * @type {Array<number>}\n * @private\n */\n this.ends_ = [];\n\n /**\n * @private\n * @type {number}\n */\n this.flatInteriorPointRevision_ = -1;\n\n /**\n * @private\n * @type {import(\"../coordinate.js\").Coordinate}\n */\n this.flatInteriorPoint_ = null;\n\n /**\n * @private\n * @type {number}\n */\n this.maxDelta_ = -1;\n\n /**\n * @private\n * @type {number}\n */\n this.maxDeltaRevision_ = -1;\n\n /**\n * @private\n * @type {number}\n */\n this.orientedRevision_ = -1;\n\n /**\n * @private\n * @type {Array<number>}\n */\n this.orientedFlatCoordinates_ = null;\n\n if (opt_layout !== undefined && opt_ends) {\n this.setFlatCoordinates(\n opt_layout,\n /** @type {Array<number>} */ (coordinates)\n );\n this.ends_ = opt_ends;\n } else {\n this.setCoordinates(\n /** @type {Array<Array<import(\"../coordinate.js\").Coordinate>>} */ (coordinates),\n opt_layout\n );\n }\n }\n\n /**\n * Append the passed linear ring to this polygon.\n * @param {LinearRing} linearRing Linear ring.\n * @api\n */\n appendLinearRing(linearRing) {\n if (!this.flatCoordinates) {\n this.flatCoordinates = linearRing.getFlatCoordinates().slice();\n } else {\n extend(this.flatCoordinates, linearRing.getFlatCoordinates());\n }\n this.ends_.push(this.flatCoordinates.length);\n this.changed();\n }\n\n /**\n * Make a complete copy of the geometry.\n * @return {!Polygon} Clone.\n * @api\n */\n clone() {\n return new Polygon(\n this.flatCoordinates.slice(),\n this.layout,\n this.ends_.slice()\n );\n }\n\n /**\n * @param {number} x X.\n * @param {number} y Y.\n * @param {import(\"../coordinate.js\").Coordinate} closestPoint Closest point.\n * @param {number} minSquaredDistance Minimum squared distance.\n * @return {number} Minimum squared distance.\n */\n closestPointXY(x, y, closestPoint, minSquaredDistance) {\n if (minSquaredDistance < closestSquaredDistanceXY(this.getExtent(), x, y)) {\n return minSquaredDistance;\n }\n if (this.maxDeltaRevision_ != this.getRevision()) {\n this.maxDelta_ = Math.sqrt(\n arrayMaxSquaredDelta(\n this.flatCoordinates,\n 0,\n this.ends_,\n this.stride,\n 0\n )\n );\n this.maxDeltaRevision_ = this.getRevision();\n }\n return assignClosestArrayPoint(\n this.flatCoordinates,\n 0,\n this.ends_,\n this.stride,\n this.maxDelta_,\n true,\n x,\n y,\n closestPoint,\n minSquaredDistance\n );\n }\n\n /**\n * @param {number} x X.\n * @param {number} y Y.\n * @return {boolean} Contains (x, y).\n */\n containsXY(x, y) {\n return linearRingsContainsXY(\n this.getOrientedFlatCoordinates(),\n 0,\n this.ends_,\n this.stride,\n x,\n y\n );\n }\n\n /**\n * Return the area of the polygon on projected plane.\n * @return {number} Area (on projected plane).\n * @api\n */\n getArea() {\n return linearRingsArea(\n this.getOrientedFlatCoordinates(),\n 0,\n this.ends_,\n this.stride\n );\n }\n\n /**\n * Get the coordinate array for this geometry. This array has the structure\n * of a GeoJSON coordinate array for polygons.\n *\n * @param {boolean=} opt_right Orient coordinates according to the right-hand\n * rule (counter-clockwise for exterior and clockwise for interior rings).\n * If `false`, coordinates will be oriented according to the left-hand rule\n * (clockwise for exterior and counter-clockwise for interior rings).\n * By default, coordinate orientation will depend on how the geometry was\n * constructed.\n * @return {Array<Array<import(\"../coordinate.js\").Coordinate>>} Coordinates.\n * @api\n */\n getCoordinates(opt_right) {\n let flatCoordinates;\n if (opt_right !== undefined) {\n flatCoordinates = this.getOrientedFlatCoordinates().slice();\n orientLinearRings(flatCoordinates, 0, this.ends_, this.stride, opt_right);\n } else {\n flatCoordinates = this.flatCoordinates;\n }\n\n return inflateCoordinatesArray(flatCoordinates, 0, this.ends_, this.stride);\n }\n\n /**\n * @return {Array<number>} Ends.\n */\n getEnds() {\n return this.ends_;\n }\n\n /**\n * @return {Array<number>} Interior point.\n */\n getFlatInteriorPoint() {\n if (this.flatInteriorPointRevision_ != this.getRevision()) {\n const flatCenter = getCenter(this.getExtent());\n this.flatInteriorPoint_ = getInteriorPointOfArray(\n this.getOrientedFlatCoordinates(),\n 0,\n this.ends_,\n this.stride,\n flatCenter,\n 0\n );\n this.flatInteriorPointRevision_ = this.getRevision();\n }\n return this.flatInteriorPoint_;\n }\n\n /**\n * Return an interior point of the polygon.\n * @return {Point} Interior point as XYM coordinate, where M is the\n * length of the horizontal intersection that the point belongs to.\n * @api\n */\n getInteriorPoint() {\n return new Point(this.getFlatInteriorPoint(), GeometryLayout.XYM);\n }\n\n /**\n * Return the number of rings of the polygon, this includes the exterior\n * ring and any interior rings.\n *\n * @return {number} Number of rings.\n * @api\n */\n getLinearRingCount() {\n return this.ends_.length;\n }\n\n /**\n * Return the Nth linear ring of the polygon geometry. Return `null` if the\n * given index is out of range.\n * The exterior linear ring is available at index `0` and the interior rings\n * at index `1` and beyond.\n *\n * @param {number} index Index.\n * @return {LinearRing} Linear ring.\n * @api\n */\n getLinearRing(index) {\n if (index < 0 || this.ends_.length <= index) {\n return null;\n }\n return new LinearRing(\n this.flatCoordinates.slice(\n index === 0 ? 0 : this.ends_[index - 1],\n this.ends_[index]\n ),\n this.layout\n );\n }\n\n /**\n * Return the linear rings of the polygon.\n * @return {Array<LinearRing>} Linear rings.\n * @api\n */\n getLinearRings() {\n const layout = this.layout;\n const flatCoordinates = this.flatCoordinates;\n const ends = this.ends_;\n const linearRings = [];\n let offset = 0;\n for (let i = 0, ii = ends.length; i < ii; ++i) {\n const end = ends[i];\n const linearRing = new LinearRing(\n flatCoordinates.slice(offset, end),\n layout\n );\n linearRings.push(linearRing);\n offset = end;\n }\n return linearRings;\n }\n\n /**\n * @return {Array<number>} Oriented flat coordinates.\n */\n getOrientedFlatCoordinates() {\n if (this.orientedRevision_ != this.getRevision()) {\n const flatCoordinates = this.flatCoordinates;\n if (linearRingsAreOriented(flatCoordinates, 0, this.ends_, this.stride)) {\n this.orientedFlatCoordinates_ = flatCoordinates;\n } else {\n this.orientedFlatCoordinates_ = flatCoordinates.slice();\n this.orientedFlatCoordinates_.length = orientLinearRings(\n this.orientedFlatCoordinates_,\n 0,\n this.ends_,\n this.stride\n );\n }\n this.orientedRevision_ = this.getRevision();\n }\n return this.orientedFlatCoordinates_;\n }\n\n /**\n * @param {number} squaredTolerance Squared tolerance.\n * @return {Polygon} Simplified Polygon.\n * @protected\n */\n getSimplifiedGeometryInternal(squaredTolerance) {\n const simplifiedFlatCoordinates = [];\n const simplifiedEnds = [];\n simplifiedFlatCoordinates.length = quantizeArray(\n this.flatCoordinates,\n 0,\n this.ends_,\n this.stride,\n Math.sqrt(squaredTolerance),\n simplifiedFlatCoordinates,\n 0,\n simplifiedEnds\n );\n return new Polygon(\n simplifiedFlatCoordinates,\n GeometryLayout.XY,\n simplifiedEnds\n );\n }\n\n /**\n * Get the type of this geometry.\n * @return {import(\"./GeometryType.js\").default} Geometry type.\n * @api\n */\n getType() {\n return GeometryType.POLYGON;\n }\n\n /**\n * Test if the geometry and the passed extent intersect.\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @return {boolean} `true` if the geometry and the extent intersect.\n * @api\n */\n intersectsExtent(extent) {\n return intersectsLinearRingArray(\n this.getOrientedFlatCoordinates(),\n 0,\n this.ends_,\n this.stride,\n extent\n );\n }\n\n /**\n * Set the coordinates of the polygon.\n * @param {!Array<Array<import(\"../coordinate.js\").Coordinate>>} coordinates Coordinates.\n * @param {import(\"./GeometryLayout.js\").default=} opt_layout Layout.\n * @api\n */\n setCoordinates(coordinates, opt_layout) {\n this.setLayout(opt_layout, coordinates, 2);\n if (!this.flatCoordinates) {\n this.flatCoordinates = [];\n }\n const ends = deflateCoordinatesArray(\n this.flatCoordinates,\n 0,\n coordinates,\n this.stride,\n this.ends_\n );\n this.flatCoordinates.length = ends.length === 0 ? 0 : ends[ends.length - 1];\n this.changed();\n }\n}\n\nexport default Polygon;\n\n/**\n * Create an approximation of a circle on the surface of a sphere.\n * @param {import(\"../coordinate.js\").Coordinate} center Center (`[lon, lat]` in degrees).\n * @param {number} radius The great-circle distance from the center to\n * the polygon vertices.\n * @param {number=} opt_n Optional number of vertices for the resulting\n * polygon. Default is `32`.\n * @param {number=} opt_sphereRadius Optional radius for the sphere (defaults to\n * the Earth's mean radius using the WGS84 ellipsoid).\n * @return {Polygon} The \"circular\" polygon.\n * @api\n */\nexport function circular(center, radius, opt_n, opt_sphereRadius) {\n const n = opt_n ? opt_n : 32;\n /** @type {Array<number>} */\n const flatCoordinates = [];\n for (let i = 0; i < n; ++i) {\n extend(\n flatCoordinates,\n sphereOffset(center, radius, (2 * Math.PI * i) / n, opt_sphereRadius)\n );\n }\n flatCoordinates.push(flatCoordinates[0], flatCoordinates[1]);\n return new Polygon(flatCoordinates, GeometryLayout.XY, [\n flatCoordinates.length,\n ]);\n}\n\n/**\n * Create a polygon from an extent. The layout used is `XY`.\n * @param {import(\"../extent.js\").Extent} extent The extent.\n * @return {Polygon} The polygon.\n * @api\n */\nexport function fromExtent(extent) {\n const minX = extent[0];\n const minY = extent[1];\n const maxX = extent[2];\n const maxY = extent[3];\n const flatCoordinates = [\n minX,\n minY,\n minX,\n maxY,\n maxX,\n maxY,\n maxX,\n minY,\n minX,\n minY,\n ];\n return new Polygon(flatCoordinates, GeometryLayout.XY, [\n flatCoordinates.length,\n ]);\n}\n\n/**\n * Create a regular polygon from a circle.\n * @param {import(\"./Circle.js\").default} circle Circle geometry.\n * @param {number=} opt_sides Number of sides of the polygon. Default is 32.\n * @param {number=} opt_angle Start angle for the first vertex of the polygon in\n * radians. Default is 0.\n * @return {Polygon} Polygon geometry.\n * @api\n */\nexport function fromCircle(circle, opt_sides, opt_angle) {\n const sides = opt_sides ? opt_sides : 32;\n const stride = circle.getStride();\n const layout = circle.getLayout();\n const center = circle.getCenter();\n const arrayLength = stride * (sides + 1);\n const flatCoordinates = new Array(arrayLength);\n for (let i = 0; i < arrayLength; i += stride) {\n flatCoordinates[i] = 0;\n flatCoordinates[i + 1] = 0;\n for (let j = 2; j < stride; j++) {\n flatCoordinates[i + j] = center[j];\n }\n }\n const ends = [flatCoordinates.length];\n const polygon = new Polygon(flatCoordinates, layout, ends);\n makeRegular(polygon, center, circle.getRadius(), opt_angle);\n return polygon;\n}\n\n/**\n * Modify the coordinates of a polygon to make it a regular polygon.\n * @param {Polygon} polygon Polygon geometry.\n * @param {import(\"../coordinate.js\").Coordinate} center Center of the regular polygon.\n * @param {number} radius Radius of the regular polygon.\n * @param {number=} opt_angle Start angle for the first vertex of the polygon in\n * radians. Default is 0.\n */\nexport function makeRegular(polygon, center, radius, opt_angle) {\n const flatCoordinates = polygon.getFlatCoordinates();\n const stride = polygon.getStride();\n const sides = flatCoordinates.length / stride - 1;\n const startAngle = opt_angle ? opt_angle : 0;\n for (let i = 0; i <= sides; ++i) {\n const offset = i * stride;\n const angle = startAngle + (modulo(i, sides) * 2 * Math.PI) / sides;\n flatCoordinates[offset] = center[0] + radius * Math.cos(angle);\n flatCoordinates[offset + 1] = center[1] + radius * Math.sin(angle);\n }\n polygon.changed();\n}\n","/**\n * @module ol/Geolocation\n */\nimport BaseEvent from './events/Event.js';\nimport BaseObject, {getChangeEventType} from './Object.js';\nimport EventType from './events/EventType.js';\nimport {circular as circularPolygon} from './geom/Polygon.js';\nimport {\n get as getProjection,\n getTransformFromProjections,\n identityTransform,\n} from './proj.js';\nimport {toRadians} from './math.js';\n\n/**\n * @enum {string}\n */\nconst Property = {\n ACCURACY: 'accuracy',\n ACCURACY_GEOMETRY: 'accuracyGeometry',\n ALTITUDE: 'altitude',\n ALTITUDE_ACCURACY: 'altitudeAccuracy',\n HEADING: 'heading',\n POSITION: 'position',\n PROJECTION: 'projection',\n SPEED: 'speed',\n TRACKING: 'tracking',\n TRACKING_OPTIONS: 'trackingOptions',\n};\n\n/**\n * @classdesc\n * Events emitted on Geolocation error.\n */\nclass GeolocationError extends BaseEvent {\n /**\n * @param {PositionError} error error object.\n */\n constructor(error) {\n super(EventType.ERROR);\n\n /**\n * @type {number}\n */\n this.code = error.code;\n\n /**\n * @type {string}\n */\n this.message = error.message;\n }\n}\n\n/**\n * @typedef {Object} Options\n * @property {boolean} [tracking=false] Start Tracking right after\n * instantiation.\n * @property {PositionOptions} [trackingOptions] Tracking options.\n * See http://www.w3.org/TR/geolocation-API/#position_options_interface.\n * @property {import(\"./proj.js\").ProjectionLike} [projection] The projection the position\n * is reported in.\n */\n\n/**\n * @classdesc\n * Helper class for providing HTML5 Geolocation capabilities.\n * The [Geolocation API](http://www.w3.org/TR/geolocation-API/)\n * is used to locate a user's position.\n *\n * To get notified of position changes, register a listener for the generic\n * `change` event on your instance of {@link module:ol/Geolocation~Geolocation}.\n *\n * Example:\n *\n * var geolocation = new Geolocation({\n * // take the projection to use from the map's view\n * projection: view.getProjection()\n * });\n * // listen to changes in position\n * geolocation.on('change', function(evt) {\n * window.console.log(geolocation.getPosition());\n * });\n *\n * @fires module:ol/events/Event~BaseEvent#event:error\n * @api\n */\nclass Geolocation extends BaseObject {\n /**\n * @param {Options=} opt_options Options.\n */\n constructor(opt_options) {\n super();\n\n const options = opt_options || {};\n\n /**\n * The unprojected (EPSG:4326) device position.\n * @private\n * @type {?import(\"./coordinate.js\").Coordinate}\n */\n this.position_ = null;\n\n /**\n * @private\n * @type {import(\"./proj.js\").TransformFunction}\n */\n this.transform_ = identityTransform;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.watchId_ = undefined;\n\n this.addEventListener(\n getChangeEventType(Property.PROJECTION),\n this.handleProjectionChanged_\n );\n this.addEventListener(\n getChangeEventType(Property.TRACKING),\n this.handleTrackingChanged_\n );\n\n if (options.projection !== undefined) {\n this.setProjection(options.projection);\n }\n if (options.trackingOptions !== undefined) {\n this.setTrackingOptions(options.trackingOptions);\n }\n\n this.setTracking(options.tracking !== undefined ? options.tracking : false);\n }\n\n /**\n * Clean up.\n */\n disposeInternal() {\n this.setTracking(false);\n super.disposeInternal();\n }\n\n /**\n * @private\n */\n handleProjectionChanged_() {\n const projection = this.getProjection();\n if (projection) {\n this.transform_ = getTransformFromProjections(\n getProjection('EPSG:4326'),\n projection\n );\n if (this.position_) {\n this.set(Property.POSITION, this.transform_(this.position_));\n }\n }\n }\n\n /**\n * @private\n */\n handleTrackingChanged_() {\n if ('geolocation' in navigator) {\n const tracking = this.getTracking();\n if (tracking && this.watchId_ === undefined) {\n this.watchId_ = navigator.geolocation.watchPosition(\n this.positionChange_.bind(this),\n this.positionError_.bind(this),\n this.getTrackingOptions()\n );\n } else if (!tracking && this.watchId_ !== undefined) {\n navigator.geolocation.clearWatch(this.watchId_);\n this.watchId_ = undefined;\n }\n }\n }\n\n /**\n * @private\n * @param {Position} position position event.\n */\n positionChange_(position) {\n const coords = position.coords;\n this.set(Property.ACCURACY, coords.accuracy);\n this.set(\n Property.ALTITUDE,\n coords.altitude === null ? undefined : coords.altitude\n );\n this.set(\n Property.ALTITUDE_ACCURACY,\n coords.altitudeAccuracy === null ? undefined : coords.altitudeAccuracy\n );\n this.set(\n Property.HEADING,\n coords.heading === null ? undefined : toRadians(coords.heading)\n );\n if (!this.position_) {\n this.position_ = [coords.longitude, coords.latitude];\n } else {\n this.position_[0] = coords.longitude;\n this.position_[1] = coords.latitude;\n }\n const projectedPosition = this.transform_(this.position_);\n this.set(Property.POSITION, projectedPosition);\n this.set(Property.SPEED, coords.speed === null ? undefined : coords.speed);\n const geometry = circularPolygon(this.position_, coords.accuracy);\n geometry.applyTransform(this.transform_);\n this.set(Property.ACCURACY_GEOMETRY, geometry);\n this.changed();\n }\n\n /**\n * @private\n * @param {PositionError} error error object.\n */\n positionError_(error) {\n this.dispatchEvent(new GeolocationError(error));\n }\n\n /**\n * Get the accuracy of the position in meters.\n * @return {number|undefined} The accuracy of the position measurement in\n * meters.\n * @observable\n * @api\n */\n getAccuracy() {\n return /** @type {number|undefined} */ (this.get(Property.ACCURACY));\n }\n\n /**\n * Get a geometry of the position accuracy.\n * @return {?import(\"./geom/Polygon.js\").default} A geometry of the position accuracy.\n * @observable\n * @api\n */\n getAccuracyGeometry() {\n return /** @type {?import(\"./geom/Polygon.js\").default} */ (this.get(\n Property.ACCURACY_GEOMETRY\n ) || null);\n }\n\n /**\n * Get the altitude associated with the position.\n * @return {number|undefined} The altitude of the position in meters above mean\n * sea level.\n * @observable\n * @api\n */\n getAltitude() {\n return /** @type {number|undefined} */ (this.get(Property.ALTITUDE));\n }\n\n /**\n * Get the altitude accuracy of the position.\n * @return {number|undefined} The accuracy of the altitude measurement in\n * meters.\n * @observable\n * @api\n */\n getAltitudeAccuracy() {\n return /** @type {number|undefined} */ (this.get(\n Property.ALTITUDE_ACCURACY\n ));\n }\n\n /**\n * Get the heading as radians clockwise from North.\n * Note: depending on the browser, the heading is only defined if the `enableHighAccuracy`\n * is set to `true` in the tracking options.\n * @return {number|undefined} The heading of the device in radians from north.\n * @observable\n * @api\n */\n getHeading() {\n return /** @type {number|undefined} */ (this.get(Property.HEADING));\n }\n\n /**\n * Get the position of the device.\n * @return {import(\"./coordinate.js\").Coordinate|undefined} The current position of the device reported\n * in the current projection.\n * @observable\n * @api\n */\n getPosition() {\n return /** @type {import(\"./coordinate.js\").Coordinate|undefined} */ (this.get(\n Property.POSITION\n ));\n }\n\n /**\n * Get the projection associated with the position.\n * @return {import(\"./proj/Projection.js\").default|undefined} The projection the position is\n * reported in.\n * @observable\n * @api\n */\n getProjection() {\n return /** @type {import(\"./proj/Projection.js\").default|undefined} */ (this.get(\n Property.PROJECTION\n ));\n }\n\n /**\n * Get the speed in meters per second.\n * @return {number|undefined} The instantaneous speed of the device in meters\n * per second.\n * @observable\n * @api\n */\n getSpeed() {\n return /** @type {number|undefined} */ (this.get(Property.SPEED));\n }\n\n /**\n * Determine if the device location is being tracked.\n * @return {boolean} The device location is being tracked.\n * @observable\n * @api\n */\n getTracking() {\n return /** @type {boolean} */ (this.get(Property.TRACKING));\n }\n\n /**\n * Get the tracking options.\n * See http://www.w3.org/TR/geolocation-API/#position-options.\n * @return {PositionOptions|undefined} PositionOptions as defined by\n * the [HTML5 Geolocation spec\n * ](http://www.w3.org/TR/geolocation-API/#position_options_interface).\n * @observable\n * @api\n */\n getTrackingOptions() {\n return /** @type {PositionOptions|undefined} */ (this.get(\n Property.TRACKING_OPTIONS\n ));\n }\n\n /**\n * Set the projection to use for transforming the coordinates.\n * @param {import(\"./proj.js\").ProjectionLike} projection The projection the position is\n * reported in.\n * @observable\n * @api\n */\n setProjection(projection) {\n this.set(Property.PROJECTION, getProjection(projection));\n }\n\n /**\n * Enable or disable tracking.\n * @param {boolean} tracking Enable tracking.\n * @observable\n * @api\n */\n setTracking(tracking) {\n this.set(Property.TRACKING, tracking);\n }\n\n /**\n * Set the tracking options.\n * See http://www.w3.org/TR/geolocation-API/#position-options.\n * @param {PositionOptions} options PositionOptions as defined by the\n * [HTML5 Geolocation spec\n * ](http://www.w3.org/TR/geolocation-API/#position_options_interface).\n * @observable\n * @api\n */\n setTrackingOptions(options) {\n this.set(Property.TRACKING_OPTIONS, options);\n }\n}\n\nexport default Geolocation;\n","/**\n * @module ol/render/EventType\n */\n\n/**\n * @enum {string}\n */\nexport default {\n /**\n * Triggered before a layer is rendered.\n * @event module:ol/render/Event~RenderEvent#prerender\n * @api\n */\n PRERENDER: 'prerender',\n\n /**\n * Triggered after a layer is rendered.\n * @event module:ol/render/Event~RenderEvent#postrender\n * @api\n */\n POSTRENDER: 'postrender',\n\n /**\n * Triggered before layers are rendered.\n * The event object will not have a `context` set.\n * @event module:ol/render/Event~RenderEvent#precompose\n * @api\n */\n PRECOMPOSE: 'precompose',\n\n /**\n * Triggered after all layers are rendered.\n * The event object will not have a `context` set.\n * @event module:ol/render/Event~RenderEvent#postcompose\n * @api\n */\n POSTCOMPOSE: 'postcompose',\n\n /**\n * Triggered when rendering is complete, i.e. all sources and tiles have\n * finished loading for the current viewport, and all tiles are faded in.\n * The event object will not have a `context` set.\n * @event module:ol/render/Event~RenderEvent#rendercomplete\n * @api\n */\n RENDERCOMPLETE: 'rendercomplete',\n};\n","/**\n * @module ol/style/Fill\n */\n\n/**\n * @typedef {Object} Options\n * @property {import(\"../color.js\").Color|import(\"../colorlike.js\").ColorLike} [color=null] A color, gradient or pattern.\n * See {@link module:ol/color~Color} and {@link module:ol/colorlike~ColorLike} for possible formats.\n * Default null; if null, the Canvas/renderer default black will be used.\n */\n\n/**\n * @classdesc\n * Set fill style for vector features.\n * @api\n */\nclass Fill {\n /**\n * @param {Options=} opt_options Options.\n */\n constructor(opt_options) {\n const options = opt_options || {};\n\n /**\n * @private\n * @type {import(\"../color.js\").Color|import(\"../colorlike.js\").ColorLike}\n */\n this.color_ = options.color !== undefined ? options.color : null;\n }\n\n /**\n * Clones the style. The color is not cloned if it is an {@link module:ol/colorlike~ColorLike}.\n * @return {Fill} The cloned style.\n * @api\n */\n clone() {\n const color = this.getColor();\n return new Fill({\n color: Array.isArray(color) ? color.slice() : color || undefined,\n });\n }\n\n /**\n * Get the fill color.\n * @return {import(\"../color.js\").Color|import(\"../colorlike.js\").ColorLike} Color.\n * @api\n */\n getColor() {\n return this.color_;\n }\n\n /**\n * Set the color.\n *\n * @param {import(\"../color.js\").Color|import(\"../colorlike.js\").ColorLike} color Color.\n * @api\n */\n setColor(color) {\n this.color_ = color;\n }\n}\n\nexport default Fill;\n","/**\n * @module ol/geom/flat/interpolate\n */\nimport {binarySearch} from '../../array.js';\nimport {lerp} from '../../math.js';\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {number} fraction Fraction.\n * @param {Array<number>=} opt_dest Destination.\n * @param {number=} opt_dimension Destination dimension (default is `2`)\n * @return {Array<number>} Destination.\n */\nexport function interpolatePoint(\n flatCoordinates,\n offset,\n end,\n stride,\n fraction,\n opt_dest,\n opt_dimension\n) {\n let o, t;\n const n = (end - offset) / stride;\n if (n === 1) {\n o = offset;\n } else if (n === 2) {\n o = offset;\n t = fraction;\n } else if (n !== 0) {\n let x1 = flatCoordinates[offset];\n let y1 = flatCoordinates[offset + 1];\n let length = 0;\n const cumulativeLengths = [0];\n for (let i = offset + stride; i < end; i += stride) {\n const x2 = flatCoordinates[i];\n const y2 = flatCoordinates[i + 1];\n length += Math.sqrt((x2 - x1) * (x2 - x1) + (y2 - y1) * (y2 - y1));\n cumulativeLengths.push(length);\n x1 = x2;\n y1 = y2;\n }\n const target = fraction * length;\n const index = binarySearch(cumulativeLengths, target);\n if (index < 0) {\n t =\n (target - cumulativeLengths[-index - 2]) /\n (cumulativeLengths[-index - 1] - cumulativeLengths[-index - 2]);\n o = offset + (-index - 2) * stride;\n } else {\n o = offset + index * stride;\n }\n }\n const dimension = opt_dimension > 1 ? opt_dimension : 2;\n const dest = opt_dest ? opt_dest : new Array(dimension);\n for (let i = 0; i < dimension; ++i) {\n dest[i] =\n o === undefined\n ? NaN\n : t === undefined\n ? flatCoordinates[o + i]\n : lerp(flatCoordinates[o + i], flatCoordinates[o + stride + i], t);\n }\n return dest;\n}\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {number} m M.\n * @param {boolean} extrapolate Extrapolate.\n * @return {import(\"../../coordinate.js\").Coordinate} Coordinate.\n */\nexport function lineStringCoordinateAtM(\n flatCoordinates,\n offset,\n end,\n stride,\n m,\n extrapolate\n) {\n if (end == offset) {\n return null;\n }\n let coordinate;\n if (m < flatCoordinates[offset + stride - 1]) {\n if (extrapolate) {\n coordinate = flatCoordinates.slice(offset, offset + stride);\n coordinate[stride - 1] = m;\n return coordinate;\n } else {\n return null;\n }\n } else if (flatCoordinates[end - 1] < m) {\n if (extrapolate) {\n coordinate = flatCoordinates.slice(end - stride, end);\n coordinate[stride - 1] = m;\n return coordinate;\n } else {\n return null;\n }\n }\n // FIXME use O(1) search\n if (m == flatCoordinates[offset + stride - 1]) {\n return flatCoordinates.slice(offset, offset + stride);\n }\n let lo = offset / stride;\n let hi = end / stride;\n while (lo < hi) {\n const mid = (lo + hi) >> 1;\n if (m < flatCoordinates[(mid + 1) * stride - 1]) {\n hi = mid;\n } else {\n lo = mid + 1;\n }\n }\n const m0 = flatCoordinates[lo * stride - 1];\n if (m == m0) {\n return flatCoordinates.slice((lo - 1) * stride, (lo - 1) * stride + stride);\n }\n const m1 = flatCoordinates[(lo + 1) * stride - 1];\n const t = (m - m0) / (m1 - m0);\n coordinate = [];\n for (let i = 0; i < stride - 1; ++i) {\n coordinate.push(\n lerp(\n flatCoordinates[(lo - 1) * stride + i],\n flatCoordinates[lo * stride + i],\n t\n )\n );\n }\n coordinate.push(m);\n return coordinate;\n}\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array<number>} ends Ends.\n * @param {number} stride Stride.\n * @param {number} m M.\n * @param {boolean} extrapolate Extrapolate.\n * @param {boolean} interpolate Interpolate.\n * @return {import(\"../../coordinate.js\").Coordinate} Coordinate.\n */\nexport function lineStringsCoordinateAtM(\n flatCoordinates,\n offset,\n ends,\n stride,\n m,\n extrapolate,\n interpolate\n) {\n if (interpolate) {\n return lineStringCoordinateAtM(\n flatCoordinates,\n offset,\n ends[ends.length - 1],\n stride,\n m,\n extrapolate\n );\n }\n let coordinate;\n if (m < flatCoordinates[stride - 1]) {\n if (extrapolate) {\n coordinate = flatCoordinates.slice(0, stride);\n coordinate[stride - 1] = m;\n return coordinate;\n } else {\n return null;\n }\n }\n if (flatCoordinates[flatCoordinates.length - 1] < m) {\n if (extrapolate) {\n coordinate = flatCoordinates.slice(flatCoordinates.length - stride);\n coordinate[stride - 1] = m;\n return coordinate;\n } else {\n return null;\n }\n }\n for (let i = 0, ii = ends.length; i < ii; ++i) {\n const end = ends[i];\n if (offset == end) {\n continue;\n }\n if (m < flatCoordinates[offset + stride - 1]) {\n return null;\n } else if (m <= flatCoordinates[end - 1]) {\n return lineStringCoordinateAtM(\n flatCoordinates,\n offset,\n end,\n stride,\n m,\n false\n );\n }\n offset = end;\n }\n return null;\n}\n","/**\n * @module ol/geom/flat/length\n */\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @return {number} Length.\n */\nexport function lineStringLength(flatCoordinates, offset, end, stride) {\n let x1 = flatCoordinates[offset];\n let y1 = flatCoordinates[offset + 1];\n let length = 0;\n for (let i = offset + stride; i < end; i += stride) {\n const x2 = flatCoordinates[i];\n const y2 = flatCoordinates[i + 1];\n length += Math.sqrt((x2 - x1) * (x2 - x1) + (y2 - y1) * (y2 - y1));\n x1 = x2;\n y1 = y2;\n }\n return length;\n}\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @return {number} Perimeter.\n */\nexport function linearRingLength(flatCoordinates, offset, end, stride) {\n let perimeter = lineStringLength(flatCoordinates, offset, end, stride);\n const dx = flatCoordinates[end - stride] - flatCoordinates[offset];\n const dy = flatCoordinates[end - stride + 1] - flatCoordinates[offset + 1];\n perimeter += Math.sqrt(dx * dx + dy * dy);\n return perimeter;\n}\n","/**\n * @module ol/geom/LineString\n */\nimport GeometryLayout from './GeometryLayout.js';\nimport GeometryType from './GeometryType.js';\nimport SimpleGeometry from './SimpleGeometry.js';\nimport {assignClosestPoint, maxSquaredDelta} from './flat/closest.js';\nimport {closestSquaredDistanceXY} from '../extent.js';\nimport {deflateCoordinates} from './flat/deflate.js';\nimport {douglasPeucker} from './flat/simplify.js';\nimport {extend} from '../array.js';\nimport {forEach as forEachSegment} from './flat/segments.js';\nimport {inflateCoordinates} from './flat/inflate.js';\nimport {interpolatePoint, lineStringCoordinateAtM} from './flat/interpolate.js';\nimport {intersectsLineString} from './flat/intersectsextent.js';\nimport {lineStringLength} from './flat/length.js';\n\n/**\n * @classdesc\n * Linestring geometry.\n *\n * @api\n */\nclass LineString extends SimpleGeometry {\n /**\n * @param {Array<import(\"../coordinate.js\").Coordinate>|Array<number>} coordinates Coordinates.\n * For internal use, flat coordinates in combination with `opt_layout` are also accepted.\n * @param {import(\"./GeometryLayout.js\").default=} opt_layout Layout.\n */\n constructor(coordinates, opt_layout) {\n super();\n\n /**\n * @private\n * @type {import(\"../coordinate.js\").Coordinate}\n */\n this.flatMidpoint_ = null;\n\n /**\n * @private\n * @type {number}\n */\n this.flatMidpointRevision_ = -1;\n\n /**\n * @private\n * @type {number}\n */\n this.maxDelta_ = -1;\n\n /**\n * @private\n * @type {number}\n */\n this.maxDeltaRevision_ = -1;\n\n if (opt_layout !== undefined && !Array.isArray(coordinates[0])) {\n this.setFlatCoordinates(\n opt_layout,\n /** @type {Array<number>} */ (coordinates)\n );\n } else {\n this.setCoordinates(\n /** @type {Array<import(\"../coordinate.js\").Coordinate>} */ (coordinates),\n opt_layout\n );\n }\n }\n\n /**\n * Append the passed coordinate to the coordinates of the linestring.\n * @param {import(\"../coordinate.js\").Coordinate} coordinate Coordinate.\n * @api\n */\n appendCoordinate(coordinate) {\n if (!this.flatCoordinates) {\n this.flatCoordinates = coordinate.slice();\n } else {\n extend(this.flatCoordinates, coordinate);\n }\n this.changed();\n }\n\n /**\n * Make a complete copy of the geometry.\n * @return {!LineString} Clone.\n * @api\n */\n clone() {\n return new LineString(this.flatCoordinates.slice(), this.layout);\n }\n\n /**\n * @param {number} x X.\n * @param {number} y Y.\n * @param {import(\"../coordinate.js\").Coordinate} closestPoint Closest point.\n * @param {number} minSquaredDistance Minimum squared distance.\n * @return {number} Minimum squared distance.\n */\n closestPointXY(x, y, closestPoint, minSquaredDistance) {\n if (minSquaredDistance < closestSquaredDistanceXY(this.getExtent(), x, y)) {\n return minSquaredDistance;\n }\n if (this.maxDeltaRevision_ != this.getRevision()) {\n this.maxDelta_ = Math.sqrt(\n maxSquaredDelta(\n this.flatCoordinates,\n 0,\n this.flatCoordinates.length,\n this.stride,\n 0\n )\n );\n this.maxDeltaRevision_ = this.getRevision();\n }\n return assignClosestPoint(\n this.flatCoordinates,\n 0,\n this.flatCoordinates.length,\n this.stride,\n this.maxDelta_,\n false,\n x,\n y,\n closestPoint,\n minSquaredDistance\n );\n }\n\n /**\n * Iterate over each segment, calling the provided callback.\n * If the callback returns a truthy value the function returns that\n * value immediately. Otherwise the function returns `false`.\n *\n * @param {function(this: S, import(\"../coordinate.js\").Coordinate, import(\"../coordinate.js\").Coordinate): T} callback Function\n * called for each segment. The function will receive two arguments, the start and end coordinates of the segment.\n * @return {T|boolean} Value.\n * @template T,S\n * @api\n */\n forEachSegment(callback) {\n return forEachSegment(\n this.flatCoordinates,\n 0,\n this.flatCoordinates.length,\n this.stride,\n callback\n );\n }\n\n /**\n * Returns the coordinate at `m` using linear interpolation, or `null` if no\n * such coordinate exists.\n *\n * `opt_extrapolate` controls extrapolation beyond the range of Ms in the\n * MultiLineString. If `opt_extrapolate` is `true` then Ms less than the first\n * M will return the first coordinate and Ms greater than the last M will\n * return the last coordinate.\n *\n * @param {number} m M.\n * @param {boolean=} opt_extrapolate Extrapolate. Default is `false`.\n * @return {import(\"../coordinate.js\").Coordinate} Coordinate.\n * @api\n */\n getCoordinateAtM(m, opt_extrapolate) {\n if (\n this.layout != GeometryLayout.XYM &&\n this.layout != GeometryLayout.XYZM\n ) {\n return null;\n }\n const extrapolate = opt_extrapolate !== undefined ? opt_extrapolate : false;\n return lineStringCoordinateAtM(\n this.flatCoordinates,\n 0,\n this.flatCoordinates.length,\n this.stride,\n m,\n extrapolate\n );\n }\n\n /**\n * Return the coordinates of the linestring.\n * @return {Array<import(\"../coordinate.js\").Coordinate>} Coordinates.\n * @api\n */\n getCoordinates() {\n return inflateCoordinates(\n this.flatCoordinates,\n 0,\n this.flatCoordinates.length,\n this.stride\n );\n }\n\n /**\n * Return the coordinate at the provided fraction along the linestring.\n * The `fraction` is a number between 0 and 1, where 0 is the start of the\n * linestring and 1 is the end.\n * @param {number} fraction Fraction.\n * @param {import(\"../coordinate.js\").Coordinate=} opt_dest Optional coordinate whose values will\n * be modified. If not provided, a new coordinate will be returned.\n * @return {import(\"../coordinate.js\").Coordinate} Coordinate of the interpolated point.\n * @api\n */\n getCoordinateAt(fraction, opt_dest) {\n return interpolatePoint(\n this.flatCoordinates,\n 0,\n this.flatCoordinates.length,\n this.stride,\n fraction,\n opt_dest,\n this.stride\n );\n }\n\n /**\n * Return the length of the linestring on projected plane.\n * @return {number} Length (on projected plane).\n * @api\n */\n getLength() {\n return lineStringLength(\n this.flatCoordinates,\n 0,\n this.flatCoordinates.length,\n this.stride\n );\n }\n\n /**\n * @return {Array<number>} Flat midpoint.\n */\n getFlatMidpoint() {\n if (this.flatMidpointRevision_ != this.getRevision()) {\n this.flatMidpoint_ = this.getCoordinateAt(0.5, this.flatMidpoint_);\n this.flatMidpointRevision_ = this.getRevision();\n }\n return this.flatMidpoint_;\n }\n\n /**\n * @param {number} squaredTolerance Squared tolerance.\n * @return {LineString} Simplified LineString.\n * @protected\n */\n getSimplifiedGeometryInternal(squaredTolerance) {\n const simplifiedFlatCoordinates = [];\n simplifiedFlatCoordinates.length = douglasPeucker(\n this.flatCoordinates,\n 0,\n this.flatCoordinates.length,\n this.stride,\n squaredTolerance,\n simplifiedFlatCoordinates,\n 0\n );\n return new LineString(simplifiedFlatCoordinates, GeometryLayout.XY);\n }\n\n /**\n * Get the type of this geometry.\n * @return {import(\"./GeometryType.js\").default} Geometry type.\n * @api\n */\n getType() {\n return GeometryType.LINE_STRING;\n }\n\n /**\n * Test if the geometry and the passed extent intersect.\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @return {boolean} `true` if the geometry and the extent intersect.\n * @api\n */\n intersectsExtent(extent) {\n return intersectsLineString(\n this.flatCoordinates,\n 0,\n this.flatCoordinates.length,\n this.stride,\n extent\n );\n }\n\n /**\n * Set the coordinates of the linestring.\n * @param {!Array<import(\"../coordinate.js\").Coordinate>} coordinates Coordinates.\n * @param {import(\"./GeometryLayout.js\").default=} opt_layout Layout.\n * @api\n */\n setCoordinates(coordinates, opt_layout) {\n this.setLayout(opt_layout, coordinates, 1);\n if (!this.flatCoordinates) {\n this.flatCoordinates = [];\n }\n this.flatCoordinates.length = deflateCoordinates(\n this.flatCoordinates,\n 0,\n coordinates,\n this.stride\n );\n this.changed();\n }\n}\n\nexport default LineString;\n","/**\n * @module ol/style/Stroke\n */\n\n/**\n * @typedef {Object} Options\n * @property {import(\"../color.js\").Color|import(\"../colorlike.js\").ColorLike} [color] A color, gradient or pattern.\n * See {@link module:ol/color~Color} and {@link module:ol/colorlike~ColorLike} for possible formats.\n * Default null; if null, the Canvas/renderer default black will be used.\n * @property {CanvasLineCap} [lineCap='round'] Line cap style: `butt`, `round`, or `square`.\n * @property {CanvasLineJoin} [lineJoin='round'] Line join style: `bevel`, `round`, or `miter`.\n * @property {Array<number>} [lineDash] Line dash pattern. Default is `null` (no dash).\n * Please note that Internet Explorer 10 and lower do not support the `setLineDash` method on\n * the `CanvasRenderingContext2D` and therefore this option will have no visual effect in these browsers.\n * @property {number} [lineDashOffset=0] Line dash offset.\n * @property {number} [miterLimit=10] Miter limit.\n * @property {number} [width] Width.\n */\n\n/**\n * @classdesc\n * Set stroke style for vector features.\n * Note that the defaults given are the Canvas defaults, which will be used if\n * option is not defined. The `get` functions return whatever was entered in\n * the options; they will not return the default.\n * @api\n */\nclass Stroke {\n /**\n * @param {Options=} opt_options Options.\n */\n constructor(opt_options) {\n const options = opt_options || {};\n\n /**\n * @private\n * @type {import(\"../color.js\").Color|import(\"../colorlike.js\").ColorLike}\n */\n this.color_ = options.color !== undefined ? options.color : null;\n\n /**\n * @private\n * @type {CanvasLineCap|undefined}\n */\n this.lineCap_ = options.lineCap;\n\n /**\n * @private\n * @type {Array<number>}\n */\n this.lineDash_ = options.lineDash !== undefined ? options.lineDash : null;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.lineDashOffset_ = options.lineDashOffset;\n\n /**\n * @private\n * @type {CanvasLineJoin|undefined}\n */\n this.lineJoin_ = options.lineJoin;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.miterLimit_ = options.miterLimit;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.width_ = options.width;\n }\n\n /**\n * Clones the style.\n * @return {Stroke} The cloned style.\n * @api\n */\n clone() {\n const color = this.getColor();\n return new Stroke({\n color: Array.isArray(color) ? color.slice() : color || undefined,\n lineCap: this.getLineCap(),\n lineDash: this.getLineDash() ? this.getLineDash().slice() : undefined,\n lineDashOffset: this.getLineDashOffset(),\n lineJoin: this.getLineJoin(),\n miterLimit: this.getMiterLimit(),\n width: this.getWidth(),\n });\n }\n\n /**\n * Get the stroke color.\n * @return {import(\"../color.js\").Color|import(\"../colorlike.js\").ColorLike} Color.\n * @api\n */\n getColor() {\n return this.color_;\n }\n\n /**\n * Get the line cap type for the stroke.\n * @return {CanvasLineCap|undefined} Line cap.\n * @api\n */\n getLineCap() {\n return this.lineCap_;\n }\n\n /**\n * Get the line dash style for the stroke.\n * @return {Array<number>} Line dash.\n * @api\n */\n getLineDash() {\n return this.lineDash_;\n }\n\n /**\n * Get the line dash offset for the stroke.\n * @return {number|undefined} Line dash offset.\n * @api\n */\n getLineDashOffset() {\n return this.lineDashOffset_;\n }\n\n /**\n * Get the line join type for the stroke.\n * @return {CanvasLineJoin|undefined} Line join.\n * @api\n */\n getLineJoin() {\n return this.lineJoin_;\n }\n\n /**\n * Get the miter limit for the stroke.\n * @return {number|undefined} Miter limit.\n * @api\n */\n getMiterLimit() {\n return this.miterLimit_;\n }\n\n /**\n * Get the stroke width.\n * @return {number|undefined} Width.\n * @api\n */\n getWidth() {\n return this.width_;\n }\n\n /**\n * Set the color.\n *\n * @param {import(\"../color.js\").Color|import(\"../colorlike.js\").ColorLike} color Color.\n * @api\n */\n setColor(color) {\n this.color_ = color;\n }\n\n /**\n * Set the line cap.\n *\n * @param {CanvasLineCap|undefined} lineCap Line cap.\n * @api\n */\n setLineCap(lineCap) {\n this.lineCap_ = lineCap;\n }\n\n /**\n * Set the line dash.\n *\n * Please note that Internet Explorer 10 and lower [do not support][mdn] the\n * `setLineDash` method on the `CanvasRenderingContext2D` and therefore this\n * property will have no visual effect in these browsers.\n *\n * [mdn]: https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/setLineDash#Browser_compatibility\n *\n * @param {Array<number>} lineDash Line dash.\n * @api\n */\n setLineDash(lineDash) {\n this.lineDash_ = lineDash;\n }\n\n /**\n * Set the line dash offset.\n *\n * @param {number|undefined} lineDashOffset Line dash offset.\n * @api\n */\n setLineDashOffset(lineDashOffset) {\n this.lineDashOffset_ = lineDashOffset;\n }\n\n /**\n * Set the line join.\n *\n * @param {CanvasLineJoin|undefined} lineJoin Line join.\n * @api\n */\n setLineJoin(lineJoin) {\n this.lineJoin_ = lineJoin;\n }\n\n /**\n * Set the miter limit.\n *\n * @param {number|undefined} miterLimit Miter limit.\n * @api\n */\n setMiterLimit(miterLimit) {\n this.miterLimit_ = miterLimit;\n }\n\n /**\n * Set the width.\n *\n * @param {number|undefined} width Width.\n * @api\n */\n setWidth(width) {\n this.width_ = width;\n }\n}\n\nexport default Stroke;\n","/**\n * @module ol/ImageState\n */\n\n/**\n * @enum {number}\n */\nexport default {\n IDLE: 0,\n LOADING: 1,\n LOADED: 2,\n ERROR: 3,\n EMPTY: 4,\n};\n","/**\n * @module ol/size\n */\n\n/**\n * An array of numbers representing a size: `[width, height]`.\n * @typedef {Array<number>} Size\n * @api\n */\n\n/**\n * Returns a buffered size.\n * @param {Size} size Size.\n * @param {number} num The amount by which to buffer.\n * @param {Size=} opt_size Optional reusable size array.\n * @return {Size} The buffered size.\n */\nexport function buffer(size, num, opt_size) {\n if (opt_size === undefined) {\n opt_size = [0, 0];\n }\n opt_size[0] = size[0] + 2 * num;\n opt_size[1] = size[1] + 2 * num;\n return opt_size;\n}\n\n/**\n * Determines if a size has a positive area.\n * @param {Size} size The size to test.\n * @return {boolean} The size has a positive area.\n */\nexport function hasArea(size) {\n return size[0] > 0 && size[1] > 0;\n}\n\n/**\n * Returns a size scaled by a ratio. The result will be an array of integers.\n * @param {Size} size Size.\n * @param {number} ratio Ratio.\n * @param {Size=} opt_size Optional reusable size array.\n * @return {Size} The scaled size.\n */\nexport function scale(size, ratio, opt_size) {\n if (opt_size === undefined) {\n opt_size = [0, 0];\n }\n opt_size[0] = (size[0] * ratio + 0.5) | 0;\n opt_size[1] = (size[1] * ratio + 0.5) | 0;\n return opt_size;\n}\n\n/**\n * Returns an `Size` array for the passed in number (meaning: square) or\n * `Size` array.\n * (meaning: non-square),\n * @param {number|Size} size Width and height.\n * @param {Size=} opt_size Optional reusable size array.\n * @return {Size} Size.\n * @api\n */\nexport function toSize(size, opt_size) {\n if (Array.isArray(size)) {\n return size;\n } else {\n if (opt_size === undefined) {\n opt_size = [size, size];\n } else {\n opt_size[0] = size;\n opt_size[1] = size;\n }\n return opt_size;\n }\n}\n","/**\n * @module ol/style/Image\n */\nimport {abstract} from '../util.js';\nimport {toSize} from '../size.js';\n\n/**\n * @typedef {Object} Options\n * @property {number} opacity\n * @property {boolean} rotateWithView\n * @property {number} rotation\n * @property {number|import(\"../size.js\").Size} scale\n * @property {Array<number>} displacement\n */\n\n/**\n * @classdesc\n * A base class used for creating subclasses and not instantiated in\n * apps. Base class for {@link module:ol/style/Icon~Icon}, {@link module:ol/style/Circle~CircleStyle} and\n * {@link module:ol/style/RegularShape~RegularShape}.\n * @abstract\n * @api\n */\nclass ImageStyle {\n /**\n * @param {Options} options Options.\n */\n constructor(options) {\n /**\n * @private\n * @type {number}\n */\n this.opacity_ = options.opacity;\n\n /**\n * @private\n * @type {boolean}\n */\n this.rotateWithView_ = options.rotateWithView;\n\n /**\n * @private\n * @type {number}\n */\n this.rotation_ = options.rotation;\n\n /**\n * @private\n * @type {number|import(\"../size.js\").Size}\n */\n this.scale_ = options.scale;\n\n /**\n * @private\n * @type {import(\"../size.js\").Size}\n */\n this.scaleArray_ = toSize(options.scale);\n\n /**\n * @private\n * @type {Array<number>}\n */\n this.displacement_ = options.displacement;\n }\n\n /**\n * Clones the style.\n * @return {ImageStyle} The cloned style.\n * @api\n */\n clone() {\n const scale = this.getScale();\n return new ImageStyle({\n opacity: this.getOpacity(),\n scale: Array.isArray(scale) ? scale.slice() : scale,\n rotation: this.getRotation(),\n rotateWithView: this.getRotateWithView(),\n displacement: this.getDisplacement().slice(),\n });\n }\n\n /**\n * Get the symbolizer opacity.\n * @return {number} Opacity.\n * @api\n */\n getOpacity() {\n return this.opacity_;\n }\n\n /**\n * Determine whether the symbolizer rotates with the map.\n * @return {boolean} Rotate with map.\n * @api\n */\n getRotateWithView() {\n return this.rotateWithView_;\n }\n\n /**\n * Get the symoblizer rotation.\n * @return {number} Rotation.\n * @api\n */\n getRotation() {\n return this.rotation_;\n }\n\n /**\n * Get the symbolizer scale.\n * @return {number|import(\"../size.js\").Size} Scale.\n * @api\n */\n getScale() {\n return this.scale_;\n }\n\n /**\n * Get the symbolizer scale array.\n * @return {import(\"../size.js\").Size} Scale array.\n */\n getScaleArray() {\n return this.scaleArray_;\n }\n\n /**\n * Get the displacement of the shape\n * @return {Array<number>} Shape's center displacement\n * @api\n */\n getDisplacement() {\n return this.displacement_;\n }\n\n /**\n * Get the anchor point in pixels. The anchor determines the center point for the\n * symbolizer.\n * @abstract\n * @return {Array<number>} Anchor.\n */\n getAnchor() {\n return abstract();\n }\n\n /**\n * Get the image element for the symbolizer.\n * @abstract\n * @param {number} pixelRatio Pixel ratio.\n * @return {HTMLCanvasElement|HTMLVideoElement|HTMLImageElement} Image element.\n */\n getImage(pixelRatio) {\n return abstract();\n }\n\n /**\n * @abstract\n * @return {HTMLCanvasElement|HTMLVideoElement|HTMLImageElement} Image element.\n */\n getHitDetectionImage() {\n return abstract();\n }\n\n /*\n * Get the image pixel ratio.\n * @param {number} pixelRatio Pixel ratio.\n * */\n getPixelRatio(pixelRatio) {\n return 1;\n }\n\n /**\n * @abstract\n * @return {import(\"../ImageState.js\").default} Image state.\n */\n getImageState() {\n return abstract();\n }\n\n /**\n * @abstract\n * @return {import(\"../size.js\").Size} Image size.\n */\n getImageSize() {\n return abstract();\n }\n\n /**\n * @abstract\n * @return {import(\"../size.js\").Size} Size of the hit-detection image.\n */\n getHitDetectionImageSize() {\n return abstract();\n }\n\n /**\n * Get the origin of the symbolizer.\n * @abstract\n * @return {Array<number>} Origin.\n */\n getOrigin() {\n return abstract();\n }\n\n /**\n * Get the size of the symbolizer (in pixels).\n * @abstract\n * @return {import(\"../size.js\").Size} Size.\n */\n getSize() {\n return abstract();\n }\n\n /**\n * Set the opacity.\n *\n * @param {number} opacity Opacity.\n * @api\n */\n setOpacity(opacity) {\n this.opacity_ = opacity;\n }\n\n /**\n * Set whether to rotate the style with the view.\n *\n * @param {boolean} rotateWithView Rotate with map.\n * @api\n */\n setRotateWithView(rotateWithView) {\n this.rotateWithView_ = rotateWithView;\n }\n\n /**\n * Set the rotation.\n *\n * @param {number} rotation Rotation.\n * @api\n */\n setRotation(rotation) {\n this.rotation_ = rotation;\n }\n /**\n * Set the scale.\n *\n * @param {number|import(\"../size.js\").Size} scale Scale.\n * @api\n */\n setScale(scale) {\n this.scale_ = scale;\n this.scaleArray_ = toSize(scale);\n }\n\n /**\n * @abstract\n * @param {function(import(\"../events/Event.js\").default): void} listener Listener function.\n */\n listenImageChange(listener) {\n abstract();\n }\n\n /**\n * Load not yet loaded URI.\n * @abstract\n */\n load() {\n abstract();\n }\n\n /**\n * @abstract\n * @param {function(import(\"../events/Event.js\").default): void} listener Listener function.\n */\n unlistenImageChange(listener) {\n abstract();\n }\n}\n\nexport default ImageStyle;\n","/**\n * @module ol/color\n */\nimport {assert} from './asserts.js';\nimport {clamp} from './math.js';\n\n/**\n * A color represented as a short array [red, green, blue, alpha].\n * red, green, and blue should be integers in the range 0..255 inclusive.\n * alpha should be a float in the range 0..1 inclusive. If no alpha value is\n * given then `1` will be used.\n * @typedef {Array<number>} Color\n * @api\n */\n\n/**\n * This RegExp matches # followed by 3, 4, 6, or 8 hex digits.\n * @const\n * @type {RegExp}\n * @private\n */\nconst HEX_COLOR_RE_ = /^#([a-f0-9]{3}|[a-f0-9]{4}(?:[a-f0-9]{2}){0,2})$/i;\n\n/**\n * Regular expression for matching potential named color style strings.\n * @const\n * @type {RegExp}\n * @private\n */\nconst NAMED_COLOR_RE_ = /^([a-z]*)$|^hsla?\\(.*\\)$/i;\n\n/**\n * Return the color as an rgba string.\n * @param {Color|string} color Color.\n * @return {string} Rgba string.\n * @api\n */\nexport function asString(color) {\n if (typeof color === 'string') {\n return color;\n } else {\n return toString(color);\n }\n}\n\n/**\n * Return named color as an rgba string.\n * @param {string} color Named color.\n * @return {string} Rgb string.\n */\nfunction fromNamed(color) {\n const el = document.createElement('div');\n el.style.color = color;\n if (el.style.color !== '') {\n document.body.appendChild(el);\n const rgb = getComputedStyle(el).color;\n document.body.removeChild(el);\n return rgb;\n } else {\n return '';\n }\n}\n\n/**\n * @param {string} s String.\n * @return {Color} Color.\n */\nexport const fromString = (function () {\n // We maintain a small cache of parsed strings. To provide cheap LRU-like\n // semantics, whenever the cache grows too large we simply delete an\n // arbitrary 25% of the entries.\n\n /**\n * @const\n * @type {number}\n */\n const MAX_CACHE_SIZE = 1024;\n\n /**\n * @type {Object<string, Color>}\n */\n const cache = {};\n\n /**\n * @type {number}\n */\n let cacheSize = 0;\n\n return (\n /**\n * @param {string} s String.\n * @return {Color} Color.\n */\n function (s) {\n let color;\n if (cache.hasOwnProperty(s)) {\n color = cache[s];\n } else {\n if (cacheSize >= MAX_CACHE_SIZE) {\n let i = 0;\n for (const key in cache) {\n if ((i++ & 3) === 0) {\n delete cache[key];\n --cacheSize;\n }\n }\n }\n color = fromStringInternal_(s);\n cache[s] = color;\n ++cacheSize;\n }\n return color;\n }\n );\n})();\n\n/**\n * Return the color as an array. This function maintains a cache of calculated\n * arrays which means the result should not be modified.\n * @param {Color|string} color Color.\n * @return {Color} Color.\n * @api\n */\nexport function asArray(color) {\n if (Array.isArray(color)) {\n return color;\n } else {\n return fromString(color);\n }\n}\n\n/**\n * @param {string} s String.\n * @private\n * @return {Color} Color.\n */\nfunction fromStringInternal_(s) {\n let r, g, b, a, color;\n\n if (NAMED_COLOR_RE_.exec(s)) {\n s = fromNamed(s);\n }\n\n if (HEX_COLOR_RE_.exec(s)) {\n // hex\n const n = s.length - 1; // number of hex digits\n let d; // number of digits per channel\n if (n <= 4) {\n d = 1;\n } else {\n d = 2;\n }\n const hasAlpha = n === 4 || n === 8;\n r = parseInt(s.substr(1 + 0 * d, d), 16);\n g = parseInt(s.substr(1 + 1 * d, d), 16);\n b = parseInt(s.substr(1 + 2 * d, d), 16);\n if (hasAlpha) {\n a = parseInt(s.substr(1 + 3 * d, d), 16);\n } else {\n a = 255;\n }\n if (d == 1) {\n r = (r << 4) + r;\n g = (g << 4) + g;\n b = (b << 4) + b;\n if (hasAlpha) {\n a = (a << 4) + a;\n }\n }\n color = [r, g, b, a / 255];\n } else if (s.indexOf('rgba(') == 0) {\n // rgba()\n color = s.slice(5, -1).split(',').map(Number);\n normalize(color);\n } else if (s.indexOf('rgb(') == 0) {\n // rgb()\n color = s.slice(4, -1).split(',').map(Number);\n color.push(1);\n normalize(color);\n } else {\n assert(false, 14); // Invalid color\n }\n return color;\n}\n\n/**\n * TODO this function is only used in the test, we probably shouldn't export it\n * @param {Color} color Color.\n * @return {Color} Clamped color.\n */\nexport function normalize(color) {\n color[0] = clamp((color[0] + 0.5) | 0, 0, 255);\n color[1] = clamp((color[1] + 0.5) | 0, 0, 255);\n color[2] = clamp((color[2] + 0.5) | 0, 0, 255);\n color[3] = clamp(color[3], 0, 1);\n return color;\n}\n\n/**\n * @param {Color} color Color.\n * @return {string} String.\n */\nexport function toString(color) {\n let r = color[0];\n if (r != (r | 0)) {\n r = (r + 0.5) | 0;\n }\n let g = color[1];\n if (g != (g | 0)) {\n g = (g + 0.5) | 0;\n }\n let b = color[2];\n if (b != (b | 0)) {\n b = (b + 0.5) | 0;\n }\n const a = color[3] === undefined ? 1 : color[3];\n return 'rgba(' + r + ',' + g + ',' + b + ',' + a + ')';\n}\n\n/**\n * @param {string} s String.\n * @return {boolean} Whether the string is actually a valid color\n */\nexport function isStringColor(s) {\n if (NAMED_COLOR_RE_.test(s)) {\n s = fromNamed(s);\n }\n return (\n HEX_COLOR_RE_.test(s) || s.indexOf('rgba(') === 0 || s.indexOf('rgb(') === 0\n );\n}\n","/**\n * @module ol/colorlike\n */\nimport {toString} from './color.js';\n\n/**\n * A type accepted by CanvasRenderingContext2D.fillStyle\n * or CanvasRenderingContext2D.strokeStyle.\n * Represents a color, pattern, or gradient. The origin for patterns and\n * gradients as fill style is an increment of 512 css pixels from map coordinate\n * `[0, 0]`. For seamless repeat patterns, width and height of the pattern image\n * must be a factor of two (2, 4, 8, ..., 512).\n *\n * @typedef {string|CanvasPattern|CanvasGradient} ColorLike\n * @api\n */\n\n/**\n * @param {import(\"./color.js\").Color|ColorLike} color Color.\n * @return {ColorLike} The color as an {@link ol/colorlike~ColorLike}.\n * @api\n */\nexport function asColorLike(color) {\n if (Array.isArray(color)) {\n return toString(color);\n } else {\n return color;\n }\n}\n","/**\n * @module ol/has\n */\n\nconst ua =\n typeof navigator !== 'undefined' && typeof navigator.userAgent !== 'undefined'\n ? navigator.userAgent.toLowerCase()\n : '';\n\n/**\n * User agent string says we are dealing with Firefox as browser.\n * @type {boolean}\n */\nexport const FIREFOX = ua.indexOf('firefox') !== -1;\n\n/**\n * User agent string says we are dealing with Safari as browser.\n * @type {boolean}\n */\nexport const SAFARI = ua.indexOf('safari') !== -1 && ua.indexOf('chrom') == -1;\n\n/**\n * User agent string says we are dealing with a WebKit engine.\n * @type {boolean}\n */\nexport const WEBKIT = ua.indexOf('webkit') !== -1 && ua.indexOf('edge') == -1;\n\n/**\n * User agent string says we are dealing with a Mac as platform.\n * @type {boolean}\n */\nexport const MAC = ua.indexOf('macintosh') !== -1;\n\n/**\n * The ratio between physical pixels and device-independent pixels\n * (dips) on the device (`window.devicePixelRatio`).\n * @const\n * @type {number}\n * @api\n */\nexport const DEVICE_PIXEL_RATIO =\n typeof devicePixelRatio !== 'undefined' ? devicePixelRatio : 1;\n\n/**\n * The execution context is a worker with OffscreenCanvas available.\n * @const\n * @type {boolean}\n */\nexport const WORKER_OFFSCREEN_CANVAS =\n typeof WorkerGlobalScope !== 'undefined' &&\n typeof OffscreenCanvas !== 'undefined' &&\n self instanceof WorkerGlobalScope; //eslint-disable-line\n\n/**\n * Image.prototype.decode() is supported.\n * @type {boolean}\n */\nexport const IMAGE_DECODE =\n typeof Image !== 'undefined' && Image.prototype.decode;\n\n/**\n * @type {boolean}\n */\nexport const PASSIVE_EVENT_LISTENERS = (function () {\n let passive = false;\n try {\n const options = Object.defineProperty({}, 'passive', {\n get: function () {\n passive = true;\n },\n });\n\n window.addEventListener('_', null, options);\n window.removeEventListener('_', null, options);\n } catch (error) {\n // passive not supported\n }\n return passive;\n})();\n","import {WORKER_OFFSCREEN_CANVAS} from './has.js';\n\n/**\n * @module ol/dom\n */\n\n//FIXME Move this function to the canvas module\n/**\n * Create an html canvas element and returns its 2d context.\n * @param {number=} opt_width Canvas width.\n * @param {number=} opt_height Canvas height.\n * @param {Array<HTMLCanvasElement>=} opt_canvasPool Canvas pool to take existing canvas from.\n * @return {CanvasRenderingContext2D} The context.\n */\nexport function createCanvasContext2D(opt_width, opt_height, opt_canvasPool) {\n const canvas =\n opt_canvasPool && opt_canvasPool.length\n ? opt_canvasPool.shift()\n : WORKER_OFFSCREEN_CANVAS\n ? new OffscreenCanvas(opt_width || 300, opt_height || 300)\n : document.createElement('canvas');\n if (opt_width) {\n canvas.width = opt_width;\n }\n if (opt_height) {\n canvas.height = opt_height;\n }\n //FIXME Allow OffscreenCanvasRenderingContext2D as return type\n return /** @type {CanvasRenderingContext2D} */ (canvas.getContext('2d'));\n}\n\n/**\n * Get the current computed width for the given element including margin,\n * padding and border.\n * Equivalent to jQuery's `$(el).outerWidth(true)`.\n * @param {!HTMLElement} element Element.\n * @return {number} The width.\n */\nexport function outerWidth(element) {\n let width = element.offsetWidth;\n const style = getComputedStyle(element);\n width += parseInt(style.marginLeft, 10) + parseInt(style.marginRight, 10);\n\n return width;\n}\n\n/**\n * Get the current computed height for the given element including margin,\n * padding and border.\n * Equivalent to jQuery's `$(el).outerHeight(true)`.\n * @param {!HTMLElement} element Element.\n * @return {number} The height.\n */\nexport function outerHeight(element) {\n let height = element.offsetHeight;\n const style = getComputedStyle(element);\n height += parseInt(style.marginTop, 10) + parseInt(style.marginBottom, 10);\n\n return height;\n}\n\n/**\n * @param {Node} newNode Node to replace old node\n * @param {Node} oldNode The node to be replaced\n */\nexport function replaceNode(newNode, oldNode) {\n const parent = oldNode.parentNode;\n if (parent) {\n parent.replaceChild(newNode, oldNode);\n }\n}\n\n/**\n * @param {Node} node The node to remove.\n * @returns {Node} The node that was removed or null.\n */\nexport function removeNode(node) {\n return node && node.parentNode ? node.parentNode.removeChild(node) : null;\n}\n\n/**\n * @param {Node} node The node to remove the children from.\n */\nexport function removeChildren(node) {\n while (node.lastChild) {\n node.removeChild(node.lastChild);\n }\n}\n\n/**\n * Transform the children of a parent node so they match the\n * provided list of children. This function aims to efficiently\n * remove, add, and reorder child nodes while maintaining a simple\n * implementation (it is not guaranteed to minimize DOM operations).\n * @param {Node} node The parent node whose children need reworking.\n * @param {Array<Node>} children The desired children.\n */\nexport function replaceChildren(node, children) {\n const oldChildren = node.childNodes;\n\n for (let i = 0; true; ++i) {\n const oldChild = oldChildren[i];\n const newChild = children[i];\n\n // check if our work is done\n if (!oldChild && !newChild) {\n break;\n }\n\n // check if children match\n if (oldChild === newChild) {\n continue;\n }\n\n // check if a new child needs to be added\n if (!oldChild) {\n node.appendChild(newChild);\n continue;\n }\n\n // check if an old child needs to be removed\n if (!newChild) {\n node.removeChild(oldChild);\n --i;\n continue;\n }\n\n // reorder\n node.insertBefore(newChild, oldChild);\n }\n}\n","/**\n * @module ol/css\n */\n\n/**\n * @typedef {Object} FontParameters\n * @property {string} style\n * @property {string} variant\n * @property {string} weight\n * @property {string} size\n * @property {string} lineHeight\n * @property {string} family\n * @property {Array<string>} families\n */\n\n/**\n * The CSS class for hidden feature.\n *\n * @const\n * @type {string}\n */\nexport const CLASS_HIDDEN = 'ol-hidden';\n\n/**\n * The CSS class that we'll give the DOM elements to have them selectable.\n *\n * @const\n * @type {string}\n */\nexport const CLASS_SELECTABLE = 'ol-selectable';\n\n/**\n * The CSS class that we'll give the DOM elements to have them unselectable.\n *\n * @const\n * @type {string}\n */\nexport const CLASS_UNSELECTABLE = 'ol-unselectable';\n\n/**\n * The CSS class for unsupported feature.\n *\n * @const\n * @type {string}\n */\nexport const CLASS_UNSUPPORTED = 'ol-unsupported';\n\n/**\n * The CSS class for controls.\n *\n * @const\n * @type {string}\n */\nexport const CLASS_CONTROL = 'ol-control';\n\n/**\n * The CSS class that we'll give the DOM elements that are collapsed, i.e.\n * to those elements which usually can be expanded.\n *\n * @const\n * @type {string}\n */\nexport const CLASS_COLLAPSED = 'ol-collapsed';\n\n/**\n * From http://stackoverflow.com/questions/10135697/regex-to-parse-any-css-font\n * @type {RegExp}\n */\nconst fontRegEx = new RegExp(\n [\n '^\\\\s*(?=(?:(?:[-a-z]+\\\\s*){0,2}(italic|oblique))?)',\n '(?=(?:(?:[-a-z]+\\\\s*){0,2}(small-caps))?)',\n '(?=(?:(?:[-a-z]+\\\\s*){0,2}(bold(?:er)?|lighter|[1-9]00 ))?)',\n '(?:(?:normal|\\\\1|\\\\2|\\\\3)\\\\s*){0,3}((?:xx?-)?',\n '(?:small|large)|medium|smaller|larger|[\\\\.\\\\d]+(?:\\\\%|in|[cem]m|ex|p[ctx]))',\n '(?:\\\\s*\\\\/\\\\s*(normal|[\\\\.\\\\d]+(?:\\\\%|in|[cem]m|ex|p[ctx])?))',\n '?\\\\s*([-,\\\\\"\\\\\\'\\\\sa-z]+?)\\\\s*$',\n ].join(''),\n 'i'\n);\nconst fontRegExMatchIndex = [\n 'style',\n 'variant',\n 'weight',\n 'size',\n 'lineHeight',\n 'family',\n];\n\n/**\n * Get the list of font families from a font spec. Note that this doesn't work\n * for font families that have commas in them.\n * @param {string} fontSpec The CSS font property.\n * @return {FontParameters} The font parameters (or null if the input spec is invalid).\n */\nexport const getFontParameters = function (fontSpec) {\n const match = fontSpec.match(fontRegEx);\n if (!match) {\n return null;\n }\n const style = /** @type {FontParameters} */ ({\n lineHeight: 'normal',\n size: '1.2em',\n style: 'normal',\n weight: 'normal',\n variant: 'normal',\n });\n for (let i = 0, ii = fontRegExMatchIndex.length; i < ii; ++i) {\n const value = match[i + 1];\n if (value !== undefined) {\n style[fontRegExMatchIndex[i]] = value;\n }\n }\n style.families = style.family.split(/,\\s?/);\n return style;\n};\n","/**\n * @module ol/render/canvas\n */\nimport BaseObject from '../Object.js';\nimport EventTarget from '../events/Target.js';\nimport {WORKER_OFFSCREEN_CANVAS} from '../has.js';\nimport {clear} from '../obj.js';\nimport {createCanvasContext2D} from '../dom.js';\nimport {getFontParameters} from '../css.js';\nimport {toString} from '../transform.js';\n\n/**\n * @typedef {Object} FillState\n * @property {import(\"../colorlike.js\").ColorLike} fillStyle\n */\n\n/**\n * @typedef Label\n * @property {number} width\n * @property {number} height\n * @property {Array<string|number>} contextInstructions\n */\n\n/**\n * @typedef {Object} FillStrokeState\n * @property {import(\"../colorlike.js\").ColorLike} [currentFillStyle]\n * @property {import(\"../colorlike.js\").ColorLike} [currentStrokeStyle]\n * @property {CanvasLineCap} [currentLineCap]\n * @property {Array<number>} currentLineDash\n * @property {number} [currentLineDashOffset]\n * @property {CanvasLineJoin} [currentLineJoin]\n * @property {number} [currentLineWidth]\n * @property {number} [currentMiterLimit]\n * @property {number} [lastStroke]\n * @property {import(\"../colorlike.js\").ColorLike} [fillStyle]\n * @property {import(\"../colorlike.js\").ColorLike} [strokeStyle]\n * @property {CanvasLineCap} [lineCap]\n * @property {Array<number>} lineDash\n * @property {number} [lineDashOffset]\n * @property {CanvasLineJoin} [lineJoin]\n * @property {number} [lineWidth]\n * @property {number} [miterLimit]\n */\n\n/**\n * @typedef {Object} StrokeState\n * @property {CanvasLineCap} lineCap\n * @property {Array<number>} lineDash\n * @property {number} lineDashOffset\n * @property {CanvasLineJoin} lineJoin\n * @property {number} lineWidth\n * @property {number} miterLimit\n * @property {import(\"../colorlike.js\").ColorLike} strokeStyle\n */\n\n/**\n * @typedef {Object} TextState\n * @property {string} font\n * @property {string} [textAlign]\n * @property {string} textBaseline\n * @property {string} [placement]\n * @property {number} [maxAngle]\n * @property {boolean} [overflow]\n * @property {import(\"../style/Fill.js\").default} [backgroundFill]\n * @property {import(\"../style/Stroke.js\").default} [backgroundStroke]\n * @property {import(\"../size.js\").Size} [scale]\n * @property {Array<number>} [padding]\n */\n\n/**\n * Container for decluttered replay instructions that need to be rendered or\n * omitted together, i.e. when styles render both an image and text, or for the\n * characters that form text along lines. The basic elements of this array are\n * `[minX, minY, maxX, maxY, count]`, where the first four entries are the\n * rendered extent of the group in pixel space. `count` is the number of styles\n * in the group, i.e. 2 when an image and a text are grouped, or 1 otherwise.\n * In addition to these four elements, declutter instruction arrays (i.e. the\n * arguments to {@link module:ol/render/canvas~drawImage} are appended to the array.\n * @typedef {Array<*>} DeclutterGroup\n */\n\n/**\n * Declutter groups for support of multi geometries.\n * @typedef {Array<DeclutterGroup>} DeclutterGroups\n */\n\n/**\n * @const\n * @type {string}\n */\nexport const defaultFont = '10px sans-serif';\n\n/**\n * @const\n * @type {import(\"../colorlike.js\").ColorLike}\n */\nexport const defaultFillStyle = '#000';\n\n/**\n * @const\n * @type {CanvasLineCap}\n */\nexport const defaultLineCap = 'round';\n\n/**\n * @const\n * @type {Array<number>}\n */\nexport const defaultLineDash = [];\n\n/**\n * @const\n * @type {number}\n */\nexport const defaultLineDashOffset = 0;\n\n/**\n * @const\n * @type {CanvasLineJoin}\n */\nexport const defaultLineJoin = 'round';\n\n/**\n * @const\n * @type {number}\n */\nexport const defaultMiterLimit = 10;\n\n/**\n * @const\n * @type {import(\"../colorlike.js\").ColorLike}\n */\nexport const defaultStrokeStyle = '#000';\n\n/**\n * @const\n * @type {string}\n */\nexport const defaultTextAlign = 'center';\n\n/**\n * @const\n * @type {string}\n */\nexport const defaultTextBaseline = 'middle';\n\n/**\n * @const\n * @type {Array<number>}\n */\nexport const defaultPadding = [0, 0, 0, 0];\n\n/**\n * @const\n * @type {number}\n */\nexport const defaultLineWidth = 1;\n\n/**\n * @type {BaseObject}\n */\nexport const checkedFonts = new BaseObject();\n\n/**\n * The label cache for text rendering. To change the default cache size of 2048\n * entries, use {@link module:ol/structs/LRUCache#setSize}.\n * Deprecated - there is no label cache any more.\n * @type {?}\n * @api\n * @deprecated\n */\nexport const labelCache = new EventTarget();\nlabelCache.setSize = function () {\n console.warn('labelCache is deprecated.'); //eslint-disable-line\n};\n\n/**\n * @type {CanvasRenderingContext2D}\n */\nlet measureContext = null;\n\n/**\n * @type {string}\n */\nlet measureFont;\n\n/**\n * @type {!Object<string, number>}\n */\nexport const textHeights = {};\n\n/**\n * Clears the label cache when a font becomes available.\n * @param {string} fontSpec CSS font spec.\n */\nexport const registerFont = (function () {\n const retries = 100;\n const size = '32px ';\n const referenceFonts = ['monospace', 'serif'];\n const len = referenceFonts.length;\n const text = 'wmytzilWMYTZIL@#/&?$%10\\uF013';\n let interval, referenceWidth;\n\n /**\n * @param {string} fontStyle Css font-style\n * @param {string} fontWeight Css font-weight\n * @param {*} fontFamily Css font-family\n * @return {boolean} Font with style and weight is available\n */\n function isAvailable(fontStyle, fontWeight, fontFamily) {\n let available = true;\n for (let i = 0; i < len; ++i) {\n const referenceFont = referenceFonts[i];\n referenceWidth = measureTextWidth(\n fontStyle + ' ' + fontWeight + ' ' + size + referenceFont,\n text\n );\n if (fontFamily != referenceFont) {\n const width = measureTextWidth(\n fontStyle +\n ' ' +\n fontWeight +\n ' ' +\n size +\n fontFamily +\n ',' +\n referenceFont,\n text\n );\n // If width and referenceWidth are the same, then the fallback was used\n // instead of the font we wanted, so the font is not available.\n available = available && width != referenceWidth;\n }\n }\n if (available) {\n return true;\n }\n return false;\n }\n\n function check() {\n let done = true;\n const fonts = checkedFonts.getKeys();\n for (let i = 0, ii = fonts.length; i < ii; ++i) {\n const font = fonts[i];\n if (checkedFonts.get(font) < retries) {\n if (isAvailable.apply(this, font.split('\\n'))) {\n clear(textHeights);\n // Make sure that loaded fonts are picked up by Safari\n measureContext = null;\n measureFont = undefined;\n checkedFonts.set(font, retries);\n } else {\n checkedFonts.set(font, checkedFonts.get(font) + 1, true);\n done = false;\n }\n }\n }\n if (done) {\n clearInterval(interval);\n interval = undefined;\n }\n }\n\n return function (fontSpec) {\n const font = getFontParameters(fontSpec);\n if (!font) {\n return;\n }\n const families = font.families;\n for (let i = 0, ii = families.length; i < ii; ++i) {\n const family = families[i];\n const key = font.style + '\\n' + font.weight + '\\n' + family;\n if (checkedFonts.get(key) === undefined) {\n checkedFonts.set(key, retries, true);\n if (!isAvailable(font.style, font.weight, family)) {\n checkedFonts.set(key, 0, true);\n if (interval === undefined) {\n interval = setInterval(check, 32);\n }\n }\n }\n }\n };\n})();\n\n/**\n * @param {string} font Font to use for measuring.\n * @return {import(\"../size.js\").Size} Measurement.\n */\nexport const measureTextHeight = (function () {\n /**\n * @type {HTMLDivElement}\n */\n let div;\n const heights = textHeights;\n return function (fontSpec) {\n let height = heights[fontSpec];\n if (height == undefined) {\n if (WORKER_OFFSCREEN_CANVAS) {\n const font = getFontParameters(fontSpec);\n const metrics = measureText(fontSpec, 'Žg');\n const lineHeight = isNaN(Number(font.lineHeight))\n ? 1.2\n : Number(font.lineHeight);\n textHeights[fontSpec] =\n lineHeight *\n (metrics.actualBoundingBoxAscent + metrics.actualBoundingBoxDescent);\n } else {\n if (!div) {\n div = document.createElement('div');\n div.innerHTML = 'M';\n div.style.margin = '0 !important';\n div.style.padding = '0 !important';\n div.style.position = 'absolute !important';\n div.style.left = '-99999px !important';\n }\n div.style.font = fontSpec;\n document.body.appendChild(div);\n height = div.offsetHeight;\n heights[fontSpec] = height;\n document.body.removeChild(div);\n }\n }\n return height;\n };\n})();\n\n/**\n * @param {string} font Font.\n * @param {string} text Text.\n * @return {TextMetrics} Text metrics.\n */\nfunction measureText(font, text) {\n if (!measureContext) {\n measureContext = createCanvasContext2D(1, 1);\n }\n if (font != measureFont) {\n measureContext.font = font;\n measureFont = measureContext.font;\n }\n return measureContext.measureText(text);\n}\n\n/**\n * @param {string} font Font.\n * @param {string} text Text.\n * @return {number} Width.\n */\nexport function measureTextWidth(font, text) {\n return measureText(font, text).width;\n}\n\n/**\n * Measure text width using a cache.\n * @param {string} font The font.\n * @param {string} text The text to measure.\n * @param {Object<string, number>} cache A lookup of cached widths by text.\n * @returns {number} The text width.\n */\nexport function measureAndCacheTextWidth(font, text, cache) {\n if (text in cache) {\n return cache[text];\n }\n const width = measureTextWidth(font, text);\n cache[text] = width;\n return width;\n}\n\n/**\n * @param {string} font Font to use for measuring.\n * @param {Array<string>} lines Lines to measure.\n * @param {Array<number>} widths Array will be populated with the widths of\n * each line.\n * @return {number} Width of the whole text.\n */\nexport function measureTextWidths(font, lines, widths) {\n const numLines = lines.length;\n let width = 0;\n for (let i = 0; i < numLines; ++i) {\n const currentWidth = measureTextWidth(font, lines[i]);\n width = Math.max(width, currentWidth);\n widths.push(currentWidth);\n }\n return width;\n}\n\n/**\n * @param {CanvasRenderingContext2D} context Context.\n * @param {number} rotation Rotation.\n * @param {number} offsetX X offset.\n * @param {number} offsetY Y offset.\n */\nexport function rotateAtOffset(context, rotation, offsetX, offsetY) {\n if (rotation !== 0) {\n context.translate(offsetX, offsetY);\n context.rotate(rotation);\n context.translate(-offsetX, -offsetY);\n }\n}\n\n/**\n * @param {CanvasRenderingContext2D} context Context.\n * @param {import(\"../transform.js\").Transform|null} transform Transform.\n * @param {number} opacity Opacity.\n * @param {Label|HTMLCanvasElement|HTMLImageElement|HTMLVideoElement} labelOrImage Label.\n * @param {number} originX Origin X.\n * @param {number} originY Origin Y.\n * @param {number} w Width.\n * @param {number} h Height.\n * @param {number} x X.\n * @param {number} y Y.\n * @param {import(\"../size.js\").Size} scale Scale.\n */\nexport function drawImageOrLabel(\n context,\n transform,\n opacity,\n labelOrImage,\n originX,\n originY,\n w,\n h,\n x,\n y,\n scale\n) {\n context.save();\n\n if (opacity !== 1) {\n context.globalAlpha *= opacity;\n }\n if (transform) {\n context.setTransform.apply(context, transform);\n }\n\n if (/** @type {*} */ (labelOrImage).contextInstructions) {\n // label\n context.translate(x, y);\n context.scale(scale[0], scale[1]);\n executeLabelInstructions(/** @type {Label} */ (labelOrImage), context);\n } else if (scale[0] < 0 || scale[1] < 0) {\n // flipped image\n context.translate(x, y);\n context.scale(scale[0], scale[1]);\n context.drawImage(\n /** @type {HTMLCanvasElement|HTMLImageElement|HTMLVideoElement} */ (labelOrImage),\n originX,\n originY,\n w,\n h,\n 0,\n 0,\n w,\n h\n );\n } else {\n // if image not flipped translate and scale can be avoided\n context.drawImage(\n /** @type {HTMLCanvasElement|HTMLImageElement|HTMLVideoElement} */ (labelOrImage),\n originX,\n originY,\n w,\n h,\n x,\n y,\n w * scale[0],\n h * scale[1]\n );\n }\n\n context.restore();\n}\n\n/**\n * @param {Label} label Label.\n * @param {CanvasRenderingContext2D} context Context.\n */\nfunction executeLabelInstructions(label, context) {\n const contextInstructions = label.contextInstructions;\n for (let i = 0, ii = contextInstructions.length; i < ii; i += 2) {\n if (Array.isArray(contextInstructions[i + 1])) {\n context[contextInstructions[i]].apply(\n context,\n contextInstructions[i + 1]\n );\n } else {\n context[contextInstructions[i]] = contextInstructions[i + 1];\n }\n }\n}\n\n/**\n * @type {HTMLCanvasElement}\n * @private\n */\nlet createTransformStringCanvas = null;\n\n/**\n * @param {import(\"../transform.js\").Transform} transform Transform.\n * @return {string} CSS transform.\n */\nexport function createTransformString(transform) {\n if (WORKER_OFFSCREEN_CANVAS) {\n return toString(transform);\n } else {\n if (!createTransformStringCanvas) {\n createTransformStringCanvas = createCanvasContext2D(1, 1).canvas;\n }\n createTransformStringCanvas.style.transform = toString(transform);\n return createTransformStringCanvas.style.transform;\n }\n}\n","/**\n * @module ol/style/RegularShape\n */\n\nimport ImageState from '../ImageState.js';\nimport ImageStyle from './Image.js';\nimport {asArray} from '../color.js';\nimport {asColorLike} from '../colorlike.js';\nimport {createCanvasContext2D} from '../dom.js';\nimport {\n defaultFillStyle,\n defaultLineCap,\n defaultLineJoin,\n defaultLineWidth,\n defaultMiterLimit,\n defaultStrokeStyle,\n} from '../render/canvas.js';\n\n/**\n * Specify radius for regular polygons, or radius1 and radius2 for stars.\n * @typedef {Object} Options\n * @property {import(\"./Fill.js\").default} [fill] Fill style.\n * @property {number} points Number of points for stars and regular polygons. In case of a polygon, the number of points\n * is the number of sides.\n * @property {number} [radius] Radius of a regular polygon.\n * @property {number} [radius1] Outer radius of a star.\n * @property {number} [radius2] Inner radius of a star.\n * @property {number} [angle=0] Shape's angle in radians. A value of 0 will have one of the shape's point facing up.\n * @property {Array<number>} [displacement=[0,0]] Displacement of the shape\n * @property {import(\"./Stroke.js\").default} [stroke] Stroke style.\n * @property {number} [rotation=0] Rotation in radians (positive rotation clockwise).\n * @property {boolean} [rotateWithView=false] Whether to rotate the shape with the view.\n */\n\n/**\n * @typedef {Object} RenderOptions\n * @property {import(\"../colorlike.js\").ColorLike} [strokeStyle]\n * @property {number} strokeWidth\n * @property {number} size\n * @property {CanvasLineCap} lineCap\n * @property {Array<number>} lineDash\n * @property {number} lineDashOffset\n * @property {CanvasLineJoin} lineJoin\n * @property {number} miterLimit\n */\n\n/**\n * @classdesc\n * Set regular shape style for vector features. The resulting shape will be\n * a regular polygon when `radius` is provided, or a star when `radius1` and\n * `radius2` are provided.\n * @api\n */\nclass RegularShape extends ImageStyle {\n /**\n * @param {Options} options Options.\n */\n constructor(options) {\n /**\n * @type {boolean}\n */\n const rotateWithView =\n options.rotateWithView !== undefined ? options.rotateWithView : false;\n\n super({\n opacity: 1,\n rotateWithView: rotateWithView,\n rotation: options.rotation !== undefined ? options.rotation : 0,\n scale: 1,\n displacement:\n options.displacement !== undefined ? options.displacement : [0, 0],\n });\n\n /**\n * @private\n * @type {Object<number, HTMLCanvasElement>}\n */\n this.canvas_ = {};\n\n /**\n * @private\n * @type {HTMLCanvasElement}\n */\n this.hitDetectionCanvas_ = null;\n\n /**\n * @private\n * @type {import(\"./Fill.js\").default}\n */\n this.fill_ = options.fill !== undefined ? options.fill : null;\n\n /**\n * @private\n * @type {Array<number>}\n */\n this.origin_ = [0, 0];\n\n /**\n * @private\n * @type {number}\n */\n this.points_ = options.points;\n\n /**\n * @protected\n * @type {number}\n */\n this.radius_ =\n options.radius !== undefined ? options.radius : options.radius1;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.radius2_ = options.radius2;\n\n /**\n * @private\n * @type {number}\n */\n this.angle_ = options.angle !== undefined ? options.angle : 0;\n\n /**\n * @private\n * @type {import(\"./Stroke.js\").default}\n */\n this.stroke_ = options.stroke !== undefined ? options.stroke : null;\n\n /**\n * @private\n * @type {Array<number>}\n */\n this.anchor_ = null;\n\n /**\n * @private\n * @type {import(\"../size.js\").Size}\n */\n this.size_ = null;\n\n /**\n * @private\n * @type {import(\"../size.js\").Size}\n */\n this.imageSize_ = null;\n\n /**\n * @private\n * @type {import(\"../size.js\").Size}\n */\n this.hitDetectionImageSize_ = null;\n\n this.render();\n }\n\n /**\n * Clones the style.\n * @return {RegularShape} The cloned style.\n * @api\n */\n clone() {\n const style = new RegularShape({\n fill: this.getFill() ? this.getFill().clone() : undefined,\n points: this.getPoints(),\n radius: this.getRadius(),\n radius2: this.getRadius2(),\n angle: this.getAngle(),\n stroke: this.getStroke() ? this.getStroke().clone() : undefined,\n rotation: this.getRotation(),\n rotateWithView: this.getRotateWithView(),\n displacement: this.getDisplacement().slice(),\n });\n style.setOpacity(this.getOpacity());\n style.setScale(this.getScale());\n return style;\n }\n\n /**\n * Get the anchor point in pixels. The anchor determines the center point for the\n * symbolizer.\n * @return {Array<number>} Anchor.\n * @api\n */\n getAnchor() {\n return this.anchor_;\n }\n\n /**\n * Get the angle used in generating the shape.\n * @return {number} Shape's rotation in radians.\n * @api\n */\n getAngle() {\n return this.angle_;\n }\n\n /**\n * Get the fill style for the shape.\n * @return {import(\"./Fill.js\").default} Fill style.\n * @api\n */\n getFill() {\n return this.fill_;\n }\n\n /**\n * @return {HTMLCanvasElement} Image element.\n */\n getHitDetectionImage() {\n if (!this.hitDetectionCanvas_) {\n const renderOptions = this.createRenderOptions();\n\n this.createHitDetectionCanvas_(renderOptions);\n }\n return this.hitDetectionCanvas_;\n }\n\n /**\n * Get the image icon.\n * @param {number} pixelRatio Pixel ratio.\n * @return {HTMLCanvasElement} Image or Canvas element.\n * @api\n */\n getImage(pixelRatio) {\n if (!this.canvas_[pixelRatio || 1]) {\n const renderOptions = this.createRenderOptions();\n\n const context = createCanvasContext2D(\n renderOptions.size * pixelRatio || 1,\n renderOptions.size * pixelRatio || 1\n );\n\n this.draw_(renderOptions, context, 0, 0, pixelRatio || 1);\n\n this.canvas_[pixelRatio || 1] = context.canvas;\n }\n return this.canvas_[pixelRatio || 1];\n }\n\n /*\n * Get the image pixel ratio.\n * @param {number} pixelRatio Pixel ratio.\n * */\n getPixelRatio(pixelRatio) {\n return pixelRatio;\n }\n\n /**\n * @return {import(\"../size.js\").Size} Image size.\n */\n getImageSize() {\n return this.imageSize_;\n }\n\n /**\n * @return {import(\"../size.js\").Size} Size of the hit-detection image.\n */\n getHitDetectionImageSize() {\n return this.hitDetectionImageSize_;\n }\n\n /**\n * @return {import(\"../ImageState.js\").default} Image state.\n */\n getImageState() {\n return ImageState.LOADED;\n }\n\n /**\n * Get the origin of the symbolizer.\n * @return {Array<number>} Origin.\n * @api\n */\n getOrigin() {\n return this.origin_;\n }\n\n /**\n * Get the number of points for generating the shape.\n * @return {number} Number of points for stars and regular polygons.\n * @api\n */\n getPoints() {\n return this.points_;\n }\n\n /**\n * Get the (primary) radius for the shape.\n * @return {number} Radius.\n * @api\n */\n getRadius() {\n return this.radius_;\n }\n\n /**\n * Get the secondary radius for the shape.\n * @return {number|undefined} Radius2.\n * @api\n */\n getRadius2() {\n return this.radius2_;\n }\n\n /**\n * Get the size of the symbolizer (in pixels).\n * @return {import(\"../size.js\").Size} Size.\n * @api\n */\n getSize() {\n return this.size_;\n }\n\n /**\n * Get the stroke style for the shape.\n * @return {import(\"./Stroke.js\").default} Stroke style.\n * @api\n */\n getStroke() {\n return this.stroke_;\n }\n\n /**\n * @param {function(import(\"../events/Event.js\").default): void} listener Listener function.\n */\n listenImageChange(listener) {}\n\n /**\n * Load not yet loaded URI.\n */\n load() {}\n\n /**\n * @param {function(import(\"../events/Event.js\").default): void} listener Listener function.\n */\n unlistenImageChange(listener) {}\n\n /**\n * @returns {RenderOptions} The render options\n * @protected\n */\n createRenderOptions() {\n let lineCap = defaultLineCap;\n let lineJoin = defaultLineJoin;\n let miterLimit = 0;\n let lineDash = null;\n let lineDashOffset = 0;\n let strokeStyle;\n let strokeWidth = 0;\n\n if (this.stroke_) {\n strokeStyle = this.stroke_.getColor();\n if (strokeStyle === null) {\n strokeStyle = defaultStrokeStyle;\n }\n strokeStyle = asColorLike(strokeStyle);\n strokeWidth = this.stroke_.getWidth();\n if (strokeWidth === undefined) {\n strokeWidth = defaultLineWidth;\n }\n lineDash = this.stroke_.getLineDash();\n lineDashOffset = this.stroke_.getLineDashOffset();\n lineJoin = this.stroke_.getLineJoin();\n if (lineJoin === undefined) {\n lineJoin = defaultLineJoin;\n }\n lineCap = this.stroke_.getLineCap();\n if (lineCap === undefined) {\n lineCap = defaultLineCap;\n }\n miterLimit = this.stroke_.getMiterLimit();\n if (miterLimit === undefined) {\n miterLimit = defaultMiterLimit;\n }\n }\n\n const size = 2 * (this.radius_ + strokeWidth) + 1;\n\n return {\n strokeStyle: strokeStyle,\n strokeWidth: strokeWidth,\n size: size,\n lineCap: lineCap,\n lineDash: lineDash,\n lineDashOffset: lineDashOffset,\n lineJoin: lineJoin,\n miterLimit: miterLimit,\n };\n }\n\n /**\n * @protected\n */\n render() {\n const renderOptions = this.createRenderOptions();\n\n const context = createCanvasContext2D(\n renderOptions.size,\n renderOptions.size\n );\n\n this.draw_(renderOptions, context, 0, 0, 1);\n\n this.canvas_[1] = context.canvas;\n\n // canvas.width and height are rounded to the closest integer\n const size = context.canvas.width;\n const imageSize = size;\n const displacement = this.getDisplacement();\n\n this.hitDetectionImageSize_ = [renderOptions.size, renderOptions.size];\n this.createHitDetectionCanvas_(renderOptions);\n\n this.anchor_ = [size / 2 - displacement[0], size / 2 + displacement[1]];\n this.size_ = [size, size];\n this.imageSize_ = [imageSize, imageSize];\n }\n\n /**\n * @private\n * @param {RenderOptions} renderOptions Render options.\n * @param {CanvasRenderingContext2D} context The rendering context.\n * @param {number} x The origin for the symbol (x).\n * @param {number} y The origin for the symbol (y).\n * @param {number} pixelRatio The pixel ratio.\n */\n draw_(renderOptions, context, x, y, pixelRatio) {\n let i, angle0, radiusC;\n\n // reset transform\n context.setTransform(pixelRatio, 0, 0, pixelRatio, 0, 0);\n\n // then move to (x, y)\n context.translate(x, y);\n\n context.beginPath();\n\n let points = this.points_;\n if (points === Infinity) {\n context.arc(\n renderOptions.size / 2,\n renderOptions.size / 2,\n this.radius_,\n 0,\n 2 * Math.PI,\n true\n );\n } else {\n const radius2 =\n this.radius2_ !== undefined ? this.radius2_ : this.radius_;\n if (radius2 !== this.radius_) {\n points = 2 * points;\n }\n for (i = 0; i <= points; i++) {\n angle0 = (i * 2 * Math.PI) / points - Math.PI / 2 + this.angle_;\n radiusC = i % 2 === 0 ? this.radius_ : radius2;\n context.lineTo(\n renderOptions.size / 2 + radiusC * Math.cos(angle0),\n renderOptions.size / 2 + radiusC * Math.sin(angle0)\n );\n }\n }\n\n if (this.fill_) {\n let color = this.fill_.getColor();\n if (color === null) {\n color = defaultFillStyle;\n }\n context.fillStyle = asColorLike(color);\n context.fill();\n }\n if (this.stroke_) {\n context.strokeStyle = renderOptions.strokeStyle;\n context.lineWidth = renderOptions.strokeWidth;\n if (context.setLineDash && renderOptions.lineDash) {\n context.setLineDash(renderOptions.lineDash);\n context.lineDashOffset = renderOptions.lineDashOffset;\n }\n context.lineCap = renderOptions.lineCap;\n context.lineJoin = renderOptions.lineJoin;\n context.miterLimit = renderOptions.miterLimit;\n context.stroke();\n }\n context.closePath();\n }\n\n /**\n * @private\n * @param {RenderOptions} renderOptions Render options.\n */\n createHitDetectionCanvas_(renderOptions) {\n this.hitDetectionCanvas_ = this.getImage(1);\n if (this.fill_) {\n let color = this.fill_.getColor();\n\n // determine if fill is transparent (or pattern or gradient)\n let opacity = 0;\n if (typeof color === 'string') {\n color = asArray(color);\n }\n if (color === null) {\n opacity = 1;\n } else if (Array.isArray(color)) {\n opacity = color.length === 4 ? color[3] : 1;\n }\n if (opacity === 0) {\n // if a transparent fill style is set, create an extra hit-detection image\n // with a default fill style\n const context = createCanvasContext2D(\n renderOptions.size,\n renderOptions.size\n );\n this.hitDetectionCanvas_ = context.canvas;\n\n this.drawHitDetectionCanvas_(renderOptions, context, 0, 0);\n }\n }\n }\n\n /**\n * @private\n * @param {RenderOptions} renderOptions Render options.\n * @param {CanvasRenderingContext2D} context The context.\n * @param {number} x The origin for the symbol (x).\n * @param {number} y The origin for the symbol (y).\n */\n drawHitDetectionCanvas_(renderOptions, context, x, y) {\n // move to (x, y)\n context.translate(x, y);\n\n context.beginPath();\n\n let points = this.points_;\n if (points === Infinity) {\n context.arc(\n renderOptions.size / 2,\n renderOptions.size / 2,\n this.radius_,\n 0,\n 2 * Math.PI,\n true\n );\n } else {\n const radius2 =\n this.radius2_ !== undefined ? this.radius2_ : this.radius_;\n if (radius2 !== this.radius_) {\n points = 2 * points;\n }\n let i, radiusC, angle0;\n for (i = 0; i <= points; i++) {\n angle0 = (i * 2 * Math.PI) / points - Math.PI / 2 + this.angle_;\n radiusC = i % 2 === 0 ? this.radius_ : radius2;\n context.lineTo(\n renderOptions.size / 2 + radiusC * Math.cos(angle0),\n renderOptions.size / 2 + radiusC * Math.sin(angle0)\n );\n }\n }\n\n context.fillStyle = defaultFillStyle;\n context.fill();\n if (this.stroke_) {\n context.strokeStyle = renderOptions.strokeStyle;\n context.lineWidth = renderOptions.strokeWidth;\n if (renderOptions.lineDash) {\n context.setLineDash(renderOptions.lineDash);\n context.lineDashOffset = renderOptions.lineDashOffset;\n }\n context.stroke();\n }\n context.closePath();\n }\n}\n\nexport default RegularShape;\n","/**\n * @module ol/style/Circle\n */\n\nimport RegularShape from './RegularShape.js';\n\n/**\n * @typedef {Object} Options\n * @property {import(\"./Fill.js\").default} [fill] Fill style.\n * @property {number} radius Circle radius.\n * @property {import(\"./Stroke.js\").default} [stroke] Stroke style.\n * @property {Array<number>} [displacement=[0,0]] displacement\n */\n\n/**\n * @classdesc\n * Set circle style for vector features.\n * @api\n */\nclass CircleStyle extends RegularShape {\n /**\n * @param {Options=} opt_options Options.\n */\n constructor(opt_options) {\n const options = opt_options ? opt_options : {};\n\n super({\n points: Infinity,\n fill: options.fill,\n radius: options.radius,\n stroke: options.stroke,\n displacement:\n options.displacement !== undefined ? options.displacement : [0, 0],\n });\n }\n\n /**\n * Clones the style.\n * @return {CircleStyle} The cloned style.\n * @api\n */\n clone() {\n const style = new CircleStyle({\n fill: this.getFill() ? this.getFill().clone() : undefined,\n stroke: this.getStroke() ? this.getStroke().clone() : undefined,\n radius: this.getRadius(),\n displacement: this.getDisplacement().slice(),\n });\n style.setOpacity(this.getOpacity());\n style.setScale(this.getScale());\n return style;\n }\n\n /**\n * Set the circle radius.\n *\n * @param {number} radius Circle radius.\n * @api\n */\n setRadius(radius) {\n this.radius_ = radius;\n this.render();\n }\n}\n\nexport default CircleStyle;\n","/**\n * @module ol/style/Style\n */\n\nimport CircleStyle from './Circle.js';\nimport Fill from './Fill.js';\nimport GeometryType from '../geom/GeometryType.js';\nimport Stroke from './Stroke.js';\nimport {assert} from '../asserts.js';\n\n/**\n * A function that takes an {@link module:ol/Feature} and a `{number}`\n * representing the view's resolution. The function should return a\n * {@link module:ol/style/Style} or an array of them. This way e.g. a\n * vector layer can be styled. If the function returns `undefined`, the\n * feature will not be rendered.\n *\n * @typedef {function(import(\"../Feature.js\").FeatureLike, number):(Style|Array<Style>|void)} StyleFunction\n */\n\n/**\n * A {@link Style}, an array of {@link Style}, or a {@link StyleFunction}.\n * @typedef {Style|Array<Style>|StyleFunction} StyleLike\n */\n\n/**\n * A function that takes an {@link module:ol/Feature} as argument and returns an\n * {@link module:ol/geom/Geometry} that will be rendered and styled for the feature.\n *\n * @typedef {function(import(\"../Feature.js\").FeatureLike):\n * (import(\"../geom/Geometry.js\").default|import(\"../render/Feature.js\").default|undefined)} GeometryFunction\n */\n\n/**\n * Custom renderer function. Takes two arguments:\n *\n * 1. The pixel coordinates of the geometry in GeoJSON notation.\n * 2. The {@link module:ol/render~State} of the layer renderer.\n *\n * @typedef {function((import(\"../coordinate.js\").Coordinate|Array<import(\"../coordinate.js\").Coordinate>|Array<Array<import(\"../coordinate.js\").Coordinate>>),import(\"../render.js\").State): void}\n * RenderFunction\n */\n\n/**\n * @typedef {Object} Options\n * @property {string|import(\"../geom/Geometry.js\").default|GeometryFunction} [geometry] Feature property or geometry\n * or function returning a geometry to render for this style.\n * @property {import(\"./Fill.js\").default} [fill] Fill style.\n * @property {import(\"./Image.js\").default} [image] Image style.\n * @property {RenderFunction} [renderer] Custom renderer. When configured, `fill`, `stroke` and `image` will be\n * ignored, and the provided function will be called with each render frame for each geometry.\n * @property {import(\"./Stroke.js\").default} [stroke] Stroke style.\n * @property {import(\"./Text.js\").default} [text] Text style.\n * @property {number} [zIndex] Z index.\n */\n\n/**\n * @classdesc\n * Container for vector feature rendering styles. Any changes made to the style\n * or its children through `set*()` methods will not take effect until the\n * feature or layer that uses the style is re-rendered.\n *\n * ## Feature styles\n *\n * If no style is defined, the following default style is used:\n * ```js\n * import {Fill, Stroke, Circle, Style} from 'ol/style';\n *\n * var fill = new Fill({\n * color: 'rgba(255,255,255,0.4)'\n * });\n * var stroke = new Stroke({\n * color: '#3399CC',\n * width: 1.25\n * });\n * var styles = [\n * new Style({\n * image: new Circle({\n * fill: fill,\n * stroke: stroke,\n * radius: 5\n * }),\n * fill: fill,\n * stroke: stroke\n * })\n * ];\n * ```\n *\n * A separate editing style has the following defaults:\n * ```js\n * import {Fill, Stroke, Circle, Style} from 'ol/style';\n * import GeometryType from 'ol/geom/GeometryType';\n *\n * var white = [255, 255, 255, 1];\n * var blue = [0, 153, 255, 1];\n * var width = 3;\n * styles[GeometryType.POLYGON] = [\n * new Style({\n * fill: new Fill({\n * color: [255, 255, 255, 0.5]\n * })\n * })\n * ];\n * styles[GeometryType.MULTI_POLYGON] =\n * styles[GeometryType.POLYGON];\n * styles[GeometryType.LINE_STRING] = [\n * new Style({\n * stroke: new Stroke({\n * color: white,\n * width: width + 2\n * })\n * }),\n * new Style({\n * stroke: new Stroke({\n * color: blue,\n * width: width\n * })\n * })\n * ];\n * styles[GeometryType.MULTI_LINE_STRING] =\n * styles[GeometryType.LINE_STRING];\n * styles[GeometryType.POINT] = [\n * new Style({\n * image: new Circle({\n * radius: width * 2,\n * fill: new Fill({\n * color: blue\n * }),\n * stroke: new Stroke({\n * color: white,\n * width: width / 2\n * })\n * }),\n * zIndex: Infinity\n * })\n * ];\n * styles[GeometryType.MULTI_POINT] =\n * styles[GeometryType.POINT];\n * styles[GeometryType.GEOMETRY_COLLECTION] =\n * styles[GeometryType.POLYGON].concat(\n * styles[GeometryType.LINE_STRING],\n * styles[GeometryType.POINT]\n * );\n * ```\n *\n * @api\n */\nclass Style {\n /**\n * @param {Options=} opt_options Style options.\n */\n constructor(opt_options) {\n const options = opt_options || {};\n\n /**\n * @private\n * @type {string|import(\"../geom/Geometry.js\").default|GeometryFunction}\n */\n this.geometry_ = null;\n\n /**\n * @private\n * @type {!GeometryFunction}\n */\n this.geometryFunction_ = defaultGeometryFunction;\n\n if (options.geometry !== undefined) {\n this.setGeometry(options.geometry);\n }\n\n /**\n * @private\n * @type {import(\"./Fill.js\").default}\n */\n this.fill_ = options.fill !== undefined ? options.fill : null;\n\n /**\n * @private\n * @type {import(\"./Image.js\").default}\n */\n this.image_ = options.image !== undefined ? options.image : null;\n\n /**\n * @private\n * @type {RenderFunction|null}\n */\n this.renderer_ = options.renderer !== undefined ? options.renderer : null;\n\n /**\n * @private\n * @type {import(\"./Stroke.js\").default}\n */\n this.stroke_ = options.stroke !== undefined ? options.stroke : null;\n\n /**\n * @private\n * @type {import(\"./Text.js\").default}\n */\n this.text_ = options.text !== undefined ? options.text : null;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.zIndex_ = options.zIndex;\n }\n\n /**\n * Clones the style.\n * @return {Style} The cloned style.\n * @api\n */\n clone() {\n let geometry = this.getGeometry();\n if (geometry && typeof geometry === 'object') {\n geometry = /** @type {import(\"../geom/Geometry.js\").default} */ (geometry).clone();\n }\n return new Style({\n geometry: geometry,\n fill: this.getFill() ? this.getFill().clone() : undefined,\n image: this.getImage() ? this.getImage().clone() : undefined,\n stroke: this.getStroke() ? this.getStroke().clone() : undefined,\n text: this.getText() ? this.getText().clone() : undefined,\n zIndex: this.getZIndex(),\n });\n }\n\n /**\n * Get the custom renderer function that was configured with\n * {@link #setRenderer} or the `renderer` constructor option.\n * @return {RenderFunction|null} Custom renderer function.\n * @api\n */\n getRenderer() {\n return this.renderer_;\n }\n\n /**\n * Sets a custom renderer function for this style. When set, `fill`, `stroke`\n * and `image` options of the style will be ignored.\n * @param {RenderFunction|null} renderer Custom renderer function.\n * @api\n */\n setRenderer(renderer) {\n this.renderer_ = renderer;\n }\n\n /**\n * Get the geometry to be rendered.\n * @return {string|import(\"../geom/Geometry.js\").default|GeometryFunction}\n * Feature property or geometry or function that returns the geometry that will\n * be rendered with this style.\n * @api\n */\n getGeometry() {\n return this.geometry_;\n }\n\n /**\n * Get the function used to generate a geometry for rendering.\n * @return {!GeometryFunction} Function that is called with a feature\n * and returns the geometry to render instead of the feature's geometry.\n * @api\n */\n getGeometryFunction() {\n return this.geometryFunction_;\n }\n\n /**\n * Get the fill style.\n * @return {import(\"./Fill.js\").default} Fill style.\n * @api\n */\n getFill() {\n return this.fill_;\n }\n\n /**\n * Set the fill style.\n * @param {import(\"./Fill.js\").default} fill Fill style.\n * @api\n */\n setFill(fill) {\n this.fill_ = fill;\n }\n\n /**\n * Get the image style.\n * @return {import(\"./Image.js\").default} Image style.\n * @api\n */\n getImage() {\n return this.image_;\n }\n\n /**\n * Set the image style.\n * @param {import(\"./Image.js\").default} image Image style.\n * @api\n */\n setImage(image) {\n this.image_ = image;\n }\n\n /**\n * Get the stroke style.\n * @return {import(\"./Stroke.js\").default} Stroke style.\n * @api\n */\n getStroke() {\n return this.stroke_;\n }\n\n /**\n * Set the stroke style.\n * @param {import(\"./Stroke.js\").default} stroke Stroke style.\n * @api\n */\n setStroke(stroke) {\n this.stroke_ = stroke;\n }\n\n /**\n * Get the text style.\n * @return {import(\"./Text.js\").default} Text style.\n * @api\n */\n getText() {\n return this.text_;\n }\n\n /**\n * Set the text style.\n * @param {import(\"./Text.js\").default} text Text style.\n * @api\n */\n setText(text) {\n this.text_ = text;\n }\n\n /**\n * Get the z-index for the style.\n * @return {number|undefined} ZIndex.\n * @api\n */\n getZIndex() {\n return this.zIndex_;\n }\n\n /**\n * Set a geometry that is rendered instead of the feature's geometry.\n *\n * @param {string|import(\"../geom/Geometry.js\").default|GeometryFunction} geometry\n * Feature property or geometry or function returning a geometry to render\n * for this style.\n * @api\n */\n setGeometry(geometry) {\n if (typeof geometry === 'function') {\n this.geometryFunction_ = geometry;\n } else if (typeof geometry === 'string') {\n this.geometryFunction_ = function (feature) {\n return /** @type {import(\"../geom/Geometry.js\").default} */ (feature.get(\n geometry\n ));\n };\n } else if (!geometry) {\n this.geometryFunction_ = defaultGeometryFunction;\n } else if (geometry !== undefined) {\n this.geometryFunction_ = function () {\n return /** @type {import(\"../geom/Geometry.js\").default} */ (geometry);\n };\n }\n this.geometry_ = geometry;\n }\n\n /**\n * Set the z-index.\n *\n * @param {number|undefined} zIndex ZIndex.\n * @api\n */\n setZIndex(zIndex) {\n this.zIndex_ = zIndex;\n }\n}\n\n/**\n * Convert the provided object into a style function. Functions passed through\n * unchanged. Arrays of Style or single style objects wrapped in a\n * new style function.\n * @param {StyleFunction|Array<Style>|Style} obj\n * A style function, a single style, or an array of styles.\n * @return {StyleFunction} A style function.\n */\nexport function toFunction(obj) {\n let styleFunction;\n\n if (typeof obj === 'function') {\n styleFunction = obj;\n } else {\n /**\n * @type {Array<Style>}\n */\n let styles;\n if (Array.isArray(obj)) {\n styles = obj;\n } else {\n assert(typeof (/** @type {?} */ (obj).getZIndex) === 'function', 41); // Expected an `Style` or an array of `Style`\n const style = /** @type {Style} */ (obj);\n styles = [style];\n }\n styleFunction = function () {\n return styles;\n };\n }\n return styleFunction;\n}\n\n/**\n * @type {Array<Style>}\n */\nlet defaultStyles = null;\n\n/**\n * @param {import(\"../Feature.js\").FeatureLike} feature Feature.\n * @param {number} resolution Resolution.\n * @return {Array<Style>} Style.\n */\nexport function createDefaultStyle(feature, resolution) {\n // We don't use an immediately-invoked function\n // and a closure so we don't get an error at script evaluation time in\n // browsers that do not support Canvas. (import(\"./Circle.js\").CircleStyle does\n // canvas.getContext('2d') at construction time, which will cause an.error\n // in such browsers.)\n if (!defaultStyles) {\n const fill = new Fill({\n color: 'rgba(255,255,255,0.4)',\n });\n const stroke = new Stroke({\n color: '#3399CC',\n width: 1.25,\n });\n defaultStyles = [\n new Style({\n image: new CircleStyle({\n fill: fill,\n stroke: stroke,\n radius: 5,\n }),\n fill: fill,\n stroke: stroke,\n }),\n ];\n }\n return defaultStyles;\n}\n\n/**\n * Default styles for editing features.\n * @return {Object<import(\"../geom/GeometryType.js\").default, Array<Style>>} Styles\n */\nexport function createEditingStyle() {\n /** @type {Object<import(\"../geom/GeometryType.js\").default, Array<Style>>} */\n const styles = {};\n const white = [255, 255, 255, 1];\n const blue = [0, 153, 255, 1];\n const width = 3;\n styles[GeometryType.POLYGON] = [\n new Style({\n fill: new Fill({\n color: [255, 255, 255, 0.5],\n }),\n }),\n ];\n styles[GeometryType.MULTI_POLYGON] = styles[GeometryType.POLYGON];\n\n styles[GeometryType.LINE_STRING] = [\n new Style({\n stroke: new Stroke({\n color: white,\n width: width + 2,\n }),\n }),\n new Style({\n stroke: new Stroke({\n color: blue,\n width: width,\n }),\n }),\n ];\n styles[GeometryType.MULTI_LINE_STRING] = styles[GeometryType.LINE_STRING];\n\n styles[GeometryType.CIRCLE] = styles[GeometryType.POLYGON].concat(\n styles[GeometryType.LINE_STRING]\n );\n\n styles[GeometryType.POINT] = [\n new Style({\n image: new CircleStyle({\n radius: width * 2,\n fill: new Fill({\n color: blue,\n }),\n stroke: new Stroke({\n color: white,\n width: width / 2,\n }),\n }),\n zIndex: Infinity,\n }),\n ];\n styles[GeometryType.MULTI_POINT] = styles[GeometryType.POINT];\n\n styles[GeometryType.GEOMETRY_COLLECTION] = styles[\n GeometryType.POLYGON\n ].concat(styles[GeometryType.LINE_STRING], styles[GeometryType.POINT]);\n\n return styles;\n}\n\n/**\n * Function that is called with a feature and returns its default geometry.\n * @param {import(\"../Feature.js\").FeatureLike} feature Feature to get the geometry for.\n * @return {import(\"../geom/Geometry.js\").default|import(\"../render/Feature.js\").default|undefined} Geometry to render.\n */\nfunction defaultGeometryFunction(feature) {\n return feature.getGeometry();\n}\n\nexport default Style;\n","/**\n * @module ol/style/TextPlacement\n */\n\n/**\n * Text placement. One of `'point'`, `'line'`. Default is `'point'`. Note that\n * `'line'` requires the underlying geometry to be a {@link module:ol/geom/LineString~LineString},\n * {@link module:ol/geom/Polygon~Polygon}, {@link module:ol/geom/MultiLineString~MultiLineString} or\n * {@link module:ol/geom/MultiPolygon~MultiPolygon}.\n * @enum {string}\n */\nexport default {\n POINT: 'point',\n LINE: 'line',\n};\n","/**\n * @module ol/style/Text\n */\nimport Fill from './Fill.js';\nimport TextPlacement from './TextPlacement.js';\nimport {toSize} from '../size.js';\n\n/**\n * The default fill color to use if no fill was set at construction time; a\n * blackish `#333`.\n *\n * @const {string}\n */\nconst DEFAULT_FILL_COLOR = '#333';\n\n/**\n * @typedef {Object} Options\n * @property {string} [font] Font style as CSS 'font' value, see:\n * https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/font. Default is '10px sans-serif'\n * @property {number} [maxAngle=Math.PI/4] When `placement` is set to `'line'`, allow a maximum angle between adjacent characters.\n * The expected value is in radians, and the default is 45° (`Math.PI / 4`).\n * @property {number} [offsetX=0] Horizontal text offset in pixels. A positive will shift the text right.\n * @property {number} [offsetY=0] Vertical text offset in pixels. A positive will shift the text down.\n * @property {boolean} [overflow=false] For polygon labels or when `placement` is set to `'line'`, allow text to exceed\n * the width of the polygon at the label position or the length of the path that it follows.\n * @property {import(\"./TextPlacement.js\").default|string} [placement='point'] Text placement.\n * @property {number|import(\"../size.js\").Size} [scale] Scale.\n * @property {boolean} [rotateWithView=false] Whether to rotate the text with the view.\n * @property {number} [rotation=0] Rotation in radians (positive rotation clockwise).\n * @property {string} [text] Text content.\n * @property {string} [textAlign] Text alignment. Possible values: 'left', 'right', 'center', 'end' or 'start'.\n * Default is 'center' for `placement: 'point'`. For `placement: 'line'`, the default is to let the renderer choose a\n * placement where `maxAngle` is not exceeded.\n * @property {string} [textBaseline='middle'] Text base line. Possible values: 'bottom', 'top', 'middle', 'alphabetic',\n * 'hanging', 'ideographic'.\n * @property {import(\"./Fill.js\").default} [fill] Fill style. If none is provided, we'll use a dark fill-style (#333).\n * @property {import(\"./Stroke.js\").default} [stroke] Stroke style.\n * @property {import(\"./Fill.js\").default} [backgroundFill] Fill style for the text background when `placement` is\n * `'point'`. Default is no fill.\n * @property {import(\"./Stroke.js\").default} [backgroundStroke] Stroke style for the text background when `placement`\n * is `'point'`. Default is no stroke.\n * @property {Array<number>} [padding=[0, 0, 0, 0]] Padding in pixels around the text for decluttering and background. The order of\n * values in the array is `[top, right, bottom, left]`.\n */\n\n/**\n * @classdesc\n * Set text style for vector features.\n * @api\n */\nclass Text {\n /**\n * @param {Options=} opt_options Options.\n */\n constructor(opt_options) {\n const options = opt_options || {};\n\n /**\n * @private\n * @type {string|undefined}\n */\n this.font_ = options.font;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.rotation_ = options.rotation;\n\n /**\n * @private\n * @type {boolean|undefined}\n */\n this.rotateWithView_ = options.rotateWithView;\n\n /**\n * @private\n * @type {number|import(\"../size.js\").Size|undefined}\n */\n this.scale_ = options.scale;\n\n /**\n * @private\n * @type {import(\"../size.js\").Size}\n */\n this.scaleArray_ = toSize(options.scale !== undefined ? options.scale : 1);\n\n /**\n * @private\n * @type {string|undefined}\n */\n this.text_ = options.text;\n\n /**\n * @private\n * @type {string|undefined}\n */\n this.textAlign_ = options.textAlign;\n\n /**\n * @private\n * @type {string|undefined}\n */\n this.textBaseline_ = options.textBaseline;\n\n /**\n * @private\n * @type {import(\"./Fill.js\").default}\n */\n this.fill_ =\n options.fill !== undefined\n ? options.fill\n : new Fill({color: DEFAULT_FILL_COLOR});\n\n /**\n * @private\n * @type {number}\n */\n this.maxAngle_ =\n options.maxAngle !== undefined ? options.maxAngle : Math.PI / 4;\n\n /**\n * @private\n * @type {import(\"./TextPlacement.js\").default|string}\n */\n this.placement_ =\n options.placement !== undefined ? options.placement : TextPlacement.POINT;\n\n /**\n * @private\n * @type {boolean}\n */\n this.overflow_ = !!options.overflow;\n\n /**\n * @private\n * @type {import(\"./Stroke.js\").default}\n */\n this.stroke_ = options.stroke !== undefined ? options.stroke : null;\n\n /**\n * @private\n * @type {number}\n */\n this.offsetX_ = options.offsetX !== undefined ? options.offsetX : 0;\n\n /**\n * @private\n * @type {number}\n */\n this.offsetY_ = options.offsetY !== undefined ? options.offsetY : 0;\n\n /**\n * @private\n * @type {import(\"./Fill.js\").default}\n */\n this.backgroundFill_ = options.backgroundFill\n ? options.backgroundFill\n : null;\n\n /**\n * @private\n * @type {import(\"./Stroke.js\").default}\n */\n this.backgroundStroke_ = options.backgroundStroke\n ? options.backgroundStroke\n : null;\n\n /**\n * @private\n * @type {Array<number>}\n */\n this.padding_ = options.padding === undefined ? null : options.padding;\n }\n\n /**\n * Clones the style.\n * @return {Text} The cloned style.\n * @api\n */\n clone() {\n const scale = this.getScale();\n return new Text({\n font: this.getFont(),\n placement: this.getPlacement(),\n maxAngle: this.getMaxAngle(),\n overflow: this.getOverflow(),\n rotation: this.getRotation(),\n rotateWithView: this.getRotateWithView(),\n scale: Array.isArray(scale) ? scale.slice() : scale,\n text: this.getText(),\n textAlign: this.getTextAlign(),\n textBaseline: this.getTextBaseline(),\n fill: this.getFill() ? this.getFill().clone() : undefined,\n stroke: this.getStroke() ? this.getStroke().clone() : undefined,\n offsetX: this.getOffsetX(),\n offsetY: this.getOffsetY(),\n backgroundFill: this.getBackgroundFill()\n ? this.getBackgroundFill().clone()\n : undefined,\n backgroundStroke: this.getBackgroundStroke()\n ? this.getBackgroundStroke().clone()\n : undefined,\n padding: this.getPadding(),\n });\n }\n\n /**\n * Get the `overflow` configuration.\n * @return {boolean} Let text overflow the length of the path they follow.\n * @api\n */\n getOverflow() {\n return this.overflow_;\n }\n\n /**\n * Get the font name.\n * @return {string|undefined} Font.\n * @api\n */\n getFont() {\n return this.font_;\n }\n\n /**\n * Get the maximum angle between adjacent characters.\n * @return {number} Angle in radians.\n * @api\n */\n getMaxAngle() {\n return this.maxAngle_;\n }\n\n /**\n * Get the label placement.\n * @return {import(\"./TextPlacement.js\").default|string} Text placement.\n * @api\n */\n getPlacement() {\n return this.placement_;\n }\n\n /**\n * Get the x-offset for the text.\n * @return {number} Horizontal text offset.\n * @api\n */\n getOffsetX() {\n return this.offsetX_;\n }\n\n /**\n * Get the y-offset for the text.\n * @return {number} Vertical text offset.\n * @api\n */\n getOffsetY() {\n return this.offsetY_;\n }\n\n /**\n * Get the fill style for the text.\n * @return {import(\"./Fill.js\").default} Fill style.\n * @api\n */\n getFill() {\n return this.fill_;\n }\n\n /**\n * Determine whether the text rotates with the map.\n * @return {boolean|undefined} Rotate with map.\n * @api\n */\n getRotateWithView() {\n return this.rotateWithView_;\n }\n\n /**\n * Get the text rotation.\n * @return {number|undefined} Rotation.\n * @api\n */\n getRotation() {\n return this.rotation_;\n }\n\n /**\n * Get the text scale.\n * @return {number|import(\"../size.js\").Size|undefined} Scale.\n * @api\n */\n getScale() {\n return this.scale_;\n }\n\n /**\n * Get the symbolizer scale array.\n * @return {import(\"../size.js\").Size} Scale array.\n */\n getScaleArray() {\n return this.scaleArray_;\n }\n\n /**\n * Get the stroke style for the text.\n * @return {import(\"./Stroke.js\").default} Stroke style.\n * @api\n */\n getStroke() {\n return this.stroke_;\n }\n\n /**\n * Get the text to be rendered.\n * @return {string|undefined} Text.\n * @api\n */\n getText() {\n return this.text_;\n }\n\n /**\n * Get the text alignment.\n * @return {string|undefined} Text align.\n * @api\n */\n getTextAlign() {\n return this.textAlign_;\n }\n\n /**\n * Get the text baseline.\n * @return {string|undefined} Text baseline.\n * @api\n */\n getTextBaseline() {\n return this.textBaseline_;\n }\n\n /**\n * Get the background fill style for the text.\n * @return {import(\"./Fill.js\").default} Fill style.\n * @api\n */\n getBackgroundFill() {\n return this.backgroundFill_;\n }\n\n /**\n * Get the background stroke style for the text.\n * @return {import(\"./Stroke.js\").default} Stroke style.\n * @api\n */\n getBackgroundStroke() {\n return this.backgroundStroke_;\n }\n\n /**\n * Get the padding for the text.\n * @return {Array<number>} Padding.\n * @api\n */\n getPadding() {\n return this.padding_;\n }\n\n /**\n * Set the `overflow` property.\n *\n * @param {boolean} overflow Let text overflow the path that it follows.\n * @api\n */\n setOverflow(overflow) {\n this.overflow_ = overflow;\n }\n\n /**\n * Set the font.\n *\n * @param {string|undefined} font Font.\n * @api\n */\n setFont(font) {\n this.font_ = font;\n }\n\n /**\n * Set the maximum angle between adjacent characters.\n *\n * @param {number} maxAngle Angle in radians.\n * @api\n */\n setMaxAngle(maxAngle) {\n this.maxAngle_ = maxAngle;\n }\n\n /**\n * Set the x offset.\n *\n * @param {number} offsetX Horizontal text offset.\n * @api\n */\n setOffsetX(offsetX) {\n this.offsetX_ = offsetX;\n }\n\n /**\n * Set the y offset.\n *\n * @param {number} offsetY Vertical text offset.\n * @api\n */\n setOffsetY(offsetY) {\n this.offsetY_ = offsetY;\n }\n\n /**\n * Set the text placement.\n *\n * @param {import(\"./TextPlacement.js\").default|string} placement Placement.\n * @api\n */\n setPlacement(placement) {\n this.placement_ = placement;\n }\n\n /**\n * Set whether to rotate the text with the view.\n *\n * @param {boolean} rotateWithView Rotate with map.\n * @api\n */\n setRotateWithView(rotateWithView) {\n this.rotateWithView_ = rotateWithView;\n }\n\n /**\n * Set the fill.\n *\n * @param {import(\"./Fill.js\").default} fill Fill style.\n * @api\n */\n setFill(fill) {\n this.fill_ = fill;\n }\n\n /**\n * Set the rotation.\n *\n * @param {number|undefined} rotation Rotation.\n * @api\n */\n setRotation(rotation) {\n this.rotation_ = rotation;\n }\n\n /**\n * Set the scale.\n *\n * @param {number|import(\"../size.js\").Size|undefined} scale Scale.\n * @api\n */\n setScale(scale) {\n this.scale_ = scale;\n this.scaleArray_ = toSize(scale !== undefined ? scale : 1);\n }\n\n /**\n * Set the stroke.\n *\n * @param {import(\"./Stroke.js\").default} stroke Stroke style.\n * @api\n */\n setStroke(stroke) {\n this.stroke_ = stroke;\n }\n\n /**\n * Set the text.\n *\n * @param {string|undefined} text Text.\n * @api\n */\n setText(text) {\n this.text_ = text;\n }\n\n /**\n * Set the text alignment.\n *\n * @param {string|undefined} textAlign Text align.\n * @api\n */\n setTextAlign(textAlign) {\n this.textAlign_ = textAlign;\n }\n\n /**\n * Set the text baseline.\n *\n * @param {string|undefined} textBaseline Text baseline.\n * @api\n */\n setTextBaseline(textBaseline) {\n this.textBaseline_ = textBaseline;\n }\n\n /**\n * Set the background fill.\n *\n * @param {import(\"./Fill.js\").default} fill Fill style.\n * @api\n */\n setBackgroundFill(fill) {\n this.backgroundFill_ = fill;\n }\n\n /**\n * Set the background stroke.\n *\n * @param {import(\"./Stroke.js\").default} stroke Stroke style.\n * @api\n */\n setBackgroundStroke(stroke) {\n this.backgroundStroke_ = stroke;\n }\n\n /**\n * Set the padding (`[top, right, bottom, left]`).\n *\n * @param {!Array<number>} padding Padding.\n * @api\n */\n setPadding(padding) {\n this.padding_ = padding;\n }\n}\n\nexport default Text;\n","/**\n * @module ol/layer/Property\n */\n\n/**\n * @enum {string}\n */\nexport default {\n OPACITY: 'opacity',\n VISIBLE: 'visible',\n EXTENT: 'extent',\n Z_INDEX: 'zIndex',\n MAX_RESOLUTION: 'maxResolution',\n MIN_RESOLUTION: 'minResolution',\n MAX_ZOOM: 'maxZoom',\n MIN_ZOOM: 'minZoom',\n SOURCE: 'source',\n};\n","/**\n * @module ol/layer/Base\n */\nimport BaseObject from '../Object.js';\nimport LayerProperty from './Property.js';\nimport {abstract} from '../util.js';\nimport {assert} from '../asserts.js';\nimport {assign} from '../obj.js';\nimport {clamp} from '../math.js';\n\n/**\n * @typedef {Object} Options\n * @property {string} [className='ol-layer'] A CSS class name to set to the layer element.\n * @property {number} [opacity=1] Opacity (0, 1).\n * @property {boolean} [visible=true] Visibility.\n * @property {import(\"../extent.js\").Extent} [extent] The bounding extent for layer rendering. The layer will not be\n * rendered outside of this extent.\n * @property {number} [zIndex] The z-index for layer rendering. At rendering time, the layers\n * will be ordered, first by Z-index and then by position. When `undefined`, a `zIndex` of 0 is assumed\n * for layers that are added to the map's `layers` collection, or `Infinity` when the layer's `setMap()`\n * method was used.\n * @property {number} [minResolution] The minimum resolution (inclusive) at which this layer will be\n * visible.\n * @property {number} [maxResolution] The maximum resolution (exclusive) below which this layer will\n * be visible.\n * @property {number} [minZoom] The minimum view zoom level (exclusive) above which this layer will be\n * visible.\n * @property {number} [maxZoom] The maximum view zoom level (inclusive) at which this layer will\n * be visible.\n */\n\n/**\n * @classdesc\n * Abstract base class; normally only used for creating subclasses and not\n * instantiated in apps.\n * Note that with {@link module:ol/layer/Base} and all its subclasses, any property set in\n * the options is set as a {@link module:ol/Object} property on the layer object, so\n * is observable, and has get/set accessors.\n *\n * @api\n */\nclass BaseLayer extends BaseObject {\n /**\n * @param {Options} options Layer options.\n */\n constructor(options) {\n super();\n\n /**\n * @type {Object<string, *>}\n */\n const properties = assign({}, options);\n\n properties[LayerProperty.OPACITY] =\n options.opacity !== undefined ? options.opacity : 1;\n assert(typeof properties[LayerProperty.OPACITY] === 'number', 64); // Layer opacity must be a number\n\n properties[LayerProperty.VISIBLE] =\n options.visible !== undefined ? options.visible : true;\n properties[LayerProperty.Z_INDEX] = options.zIndex;\n properties[LayerProperty.MAX_RESOLUTION] =\n options.maxResolution !== undefined ? options.maxResolution : Infinity;\n properties[LayerProperty.MIN_RESOLUTION] =\n options.minResolution !== undefined ? options.minResolution : 0;\n properties[LayerProperty.MIN_ZOOM] =\n options.minZoom !== undefined ? options.minZoom : -Infinity;\n properties[LayerProperty.MAX_ZOOM] =\n options.maxZoom !== undefined ? options.maxZoom : Infinity;\n\n /**\n * @type {string}\n * @private\n */\n this.className_ =\n properties.className !== undefined ? options.className : 'ol-layer';\n delete properties.className;\n\n this.setProperties(properties);\n\n /**\n * @type {import(\"./Layer.js\").State}\n * @private\n */\n this.state_ = null;\n }\n\n /**\n * @return {string} CSS class name.\n */\n getClassName() {\n return this.className_;\n }\n\n /**\n * This method is not meant to be called by layers or layer renderers because the state\n * is incorrect if the layer is included in a layer group.\n *\n * @param {boolean=} opt_managed Layer is managed.\n * @return {import(\"./Layer.js\").State} Layer state.\n */\n getLayerState(opt_managed) {\n /** @type {import(\"./Layer.js\").State} */\n const state =\n this.state_ ||\n /** @type {?} */ ({\n layer: this,\n managed: opt_managed === undefined ? true : opt_managed,\n });\n const zIndex = this.getZIndex();\n state.opacity = clamp(Math.round(this.getOpacity() * 100) / 100, 0, 1);\n state.sourceState = this.getSourceState();\n state.visible = this.getVisible();\n state.extent = this.getExtent();\n state.zIndex =\n zIndex !== undefined ? zIndex : state.managed === false ? Infinity : 0;\n state.maxResolution = this.getMaxResolution();\n state.minResolution = Math.max(this.getMinResolution(), 0);\n state.minZoom = this.getMinZoom();\n state.maxZoom = this.getMaxZoom();\n this.state_ = state;\n\n return state;\n }\n\n /**\n * @abstract\n * @param {Array<import(\"./Layer.js\").default>=} opt_array Array of layers (to be\n * modified in place).\n * @return {Array<import(\"./Layer.js\").default>} Array of layers.\n */\n getLayersArray(opt_array) {\n return abstract();\n }\n\n /**\n * @abstract\n * @param {Array<import(\"./Layer.js\").State>=} opt_states Optional list of layer\n * states (to be modified in place).\n * @return {Array<import(\"./Layer.js\").State>} List of layer states.\n */\n getLayerStatesArray(opt_states) {\n return abstract();\n }\n\n /**\n * Return the {@link module:ol/extent~Extent extent} of the layer or `undefined` if it\n * will be visible regardless of extent.\n * @return {import(\"../extent.js\").Extent|undefined} The layer extent.\n * @observable\n * @api\n */\n getExtent() {\n return /** @type {import(\"../extent.js\").Extent|undefined} */ (this.get(\n LayerProperty.EXTENT\n ));\n }\n\n /**\n * Return the maximum resolution of the layer.\n * @return {number} The maximum resolution of the layer.\n * @observable\n * @api\n */\n getMaxResolution() {\n return /** @type {number} */ (this.get(LayerProperty.MAX_RESOLUTION));\n }\n\n /**\n * Return the minimum resolution of the layer.\n * @return {number} The minimum resolution of the layer.\n * @observable\n * @api\n */\n getMinResolution() {\n return /** @type {number} */ (this.get(LayerProperty.MIN_RESOLUTION));\n }\n\n /**\n * Return the minimum zoom level of the layer.\n * @return {number} The minimum zoom level of the layer.\n * @observable\n * @api\n */\n getMinZoom() {\n return /** @type {number} */ (this.get(LayerProperty.MIN_ZOOM));\n }\n\n /**\n * Return the maximum zoom level of the layer.\n * @return {number} The maximum zoom level of the layer.\n * @observable\n * @api\n */\n getMaxZoom() {\n return /** @type {number} */ (this.get(LayerProperty.MAX_ZOOM));\n }\n\n /**\n * Return the opacity of the layer (between 0 and 1).\n * @return {number} The opacity of the layer.\n * @observable\n * @api\n */\n getOpacity() {\n return /** @type {number} */ (this.get(LayerProperty.OPACITY));\n }\n\n /**\n * @abstract\n * @return {import(\"../source/State.js\").default} Source state.\n */\n getSourceState() {\n return abstract();\n }\n\n /**\n * Return the visibility of the layer (`true` or `false`).\n * @return {boolean} The visibility of the layer.\n * @observable\n * @api\n */\n getVisible() {\n return /** @type {boolean} */ (this.get(LayerProperty.VISIBLE));\n }\n\n /**\n * Return the Z-index of the layer, which is used to order layers before\n * rendering. The default Z-index is 0.\n * @return {number} The Z-index of the layer.\n * @observable\n * @api\n */\n getZIndex() {\n return /** @type {number} */ (this.get(LayerProperty.Z_INDEX));\n }\n\n /**\n * Set the extent at which the layer is visible. If `undefined`, the layer\n * will be visible at all extents.\n * @param {import(\"../extent.js\").Extent|undefined} extent The extent of the layer.\n * @observable\n * @api\n */\n setExtent(extent) {\n this.set(LayerProperty.EXTENT, extent);\n }\n\n /**\n * Set the maximum resolution at which the layer is visible.\n * @param {number} maxResolution The maximum resolution of the layer.\n * @observable\n * @api\n */\n setMaxResolution(maxResolution) {\n this.set(LayerProperty.MAX_RESOLUTION, maxResolution);\n }\n\n /**\n * Set the minimum resolution at which the layer is visible.\n * @param {number} minResolution The minimum resolution of the layer.\n * @observable\n * @api\n */\n setMinResolution(minResolution) {\n this.set(LayerProperty.MIN_RESOLUTION, minResolution);\n }\n\n /**\n * Set the maximum zoom (exclusive) at which the layer is visible.\n * Note that the zoom levels for layer visibility are based on the\n * view zoom level, which may be different from a tile source zoom level.\n * @param {number} maxZoom The maximum zoom of the layer.\n * @observable\n * @api\n */\n setMaxZoom(maxZoom) {\n this.set(LayerProperty.MAX_ZOOM, maxZoom);\n }\n\n /**\n * Set the minimum zoom (inclusive) at which the layer is visible.\n * Note that the zoom levels for layer visibility are based on the\n * view zoom level, which may be different from a tile source zoom level.\n * @param {number} minZoom The minimum zoom of the layer.\n * @observable\n * @api\n */\n setMinZoom(minZoom) {\n this.set(LayerProperty.MIN_ZOOM, minZoom);\n }\n\n /**\n * Set the opacity of the layer, allowed values range from 0 to 1.\n * @param {number} opacity The opacity of the layer.\n * @observable\n * @api\n */\n setOpacity(opacity) {\n assert(typeof opacity === 'number', 64); // Layer opacity must be a number\n this.set(LayerProperty.OPACITY, opacity);\n }\n\n /**\n * Set the visibility of the layer (`true` or `false`).\n * @param {boolean} visible The visibility of the layer.\n * @observable\n * @api\n */\n setVisible(visible) {\n this.set(LayerProperty.VISIBLE, visible);\n }\n\n /**\n * Set Z-index of the layer, which is used to order layers before rendering.\n * The default Z-index is 0.\n * @param {number} zindex The z-index of the layer.\n * @observable\n * @api\n */\n setZIndex(zindex) {\n this.set(LayerProperty.Z_INDEX, zindex);\n }\n\n /**\n * Clean up.\n */\n disposeInternal() {\n if (this.state_) {\n this.state_.layer = null;\n this.state_ = null;\n }\n super.disposeInternal();\n }\n}\n\nexport default BaseLayer;\n","/**\n * @module ol/source/State\n */\n\n/**\n * @enum {string}\n * State of the source, one of 'undefined', 'loading', 'ready' or 'error'.\n */\nexport default {\n UNDEFINED: 'undefined',\n LOADING: 'loading',\n READY: 'ready',\n ERROR: 'error',\n};\n","/**\n * @module ol/layer/Layer\n */\nimport BaseLayer from './Base.js';\nimport EventType from '../events/EventType.js';\nimport LayerProperty from './Property.js';\nimport RenderEventType from '../render/EventType.js';\nimport SourceState from '../source/State.js';\nimport {assert} from '../asserts.js';\nimport {assign} from '../obj.js';\nimport {getChangeEventType} from '../Object.js';\nimport {listen, unlistenByKey} from '../events.js';\n\n/**\n * @typedef {function(import(\"../PluggableMap.js\").FrameState):HTMLElement} RenderFunction\n */\n\n/**\n * @typedef {Object} Options\n * @property {string} [className='ol-layer'] A CSS class name to set to the layer element.\n * @property {number} [opacity=1] Opacity (0, 1).\n * @property {boolean} [visible=true] Visibility.\n * @property {import(\"../extent.js\").Extent} [extent] The bounding extent for layer rendering. The layer will not be\n * rendered outside of this extent.\n * @property {number} [zIndex] The z-index for layer rendering. At rendering time, the layers\n * will be ordered, first by Z-index and then by position. When `undefined`, a `zIndex` of 0 is assumed\n * for layers that are added to the map's `layers` collection, or `Infinity` when the layer's `setMap()`\n * method was used.\n * @property {number} [minResolution] The minimum resolution (inclusive) at which this layer will be\n * visible.\n * @property {number} [maxResolution] The maximum resolution (exclusive) below which this layer will\n * be visible.\n * @property {number} [minZoom] The minimum view zoom level (exclusive) above which this layer will be\n * visible.\n * @property {number} [maxZoom] The maximum view zoom level (inclusive) at which this layer will\n * be visible.\n * @property {import(\"../source/Source.js\").default} [source] Source for this layer. If not provided to the constructor,\n * the source can be set by calling {@link module:ol/layer/Layer#setSource layer.setSource(source)} after\n * construction.\n * @property {import(\"../PluggableMap.js\").default} [map] Map.\n * @property {RenderFunction} [render] Render function. Takes the frame state as input and is expected to return an\n * HTML element. Will overwrite the default rendering for the layer.\n */\n\n/**\n * @typedef {Object} State\n * @property {import(\"./Layer.js\").default} layer\n * @property {number} opacity Opacity, the value is rounded to two digits to appear after the decimal point.\n * @property {import(\"../source/State.js\").default} sourceState\n * @property {boolean} visible\n * @property {boolean} managed\n * @property {import(\"../extent.js\").Extent} [extent]\n * @property {number} zIndex\n * @property {number} maxResolution\n * @property {number} minResolution\n * @property {number} minZoom\n * @property {number} maxZoom\n */\n\n/**\n * @classdesc\n * Base class from which all layer types are derived. This should only be instantiated\n * in the case where a custom layer is be added to the map with a custom `render` function.\n * Such a function can be specified in the `options` object, and is expected to return an HTML element.\n *\n * A visual representation of raster or vector map data.\n * Layers group together those properties that pertain to how the data is to be\n * displayed, irrespective of the source of that data.\n *\n * Layers are usually added to a map with {@link module:ol/Map#addLayer}. Components\n * like {@link module:ol/interaction/Select~Select} use unmanaged layers\n * internally. These unmanaged layers are associated with the map using\n * {@link module:ol/layer/Layer~Layer#setMap} instead.\n *\n * A generic `change` event is fired when the state of the source changes.\n *\n * Please note that for performance reasons several layers might get rendered to\n * the same HTML element, which will cause {@link module:ol/Map~Map#forEachLayerAtPixel} to\n * give false positives. To avoid this, apply different `className` properties to the\n * layers at creation time.\n *\n * @fires import(\"../render/Event.js\").RenderEvent#prerender\n * @fires import(\"../render/Event.js\").RenderEvent#postrender\n *\n * @template {import(\"../source/Source.js\").default} SourceType\n * @api\n */\nclass Layer extends BaseLayer {\n /**\n * @param {Options} options Layer options.\n */\n constructor(options) {\n const baseOptions = assign({}, options);\n delete baseOptions.source;\n\n super(baseOptions);\n\n /**\n * @private\n * @type {?import(\"../events.js\").EventsKey}\n */\n this.mapPrecomposeKey_ = null;\n\n /**\n * @private\n * @type {?import(\"../events.js\").EventsKey}\n */\n this.mapRenderKey_ = null;\n\n /**\n * @private\n * @type {?import(\"../events.js\").EventsKey}\n */\n this.sourceChangeKey_ = null;\n\n /**\n * @private\n * @type {import(\"../renderer/Layer.js\").default}\n */\n this.renderer_ = null;\n\n // Overwrite default render method with a custom one\n if (options.render) {\n this.render = options.render;\n }\n\n if (options.map) {\n this.setMap(options.map);\n }\n\n this.addEventListener(\n getChangeEventType(LayerProperty.SOURCE),\n this.handleSourcePropertyChange_\n );\n\n const source = options.source\n ? /** @type {SourceType} */ (options.source)\n : null;\n this.setSource(source);\n }\n\n /**\n * @param {Array<import(\"./Layer.js\").default>=} opt_array Array of layers (to be modified in place).\n * @return {Array<import(\"./Layer.js\").default>} Array of layers.\n */\n getLayersArray(opt_array) {\n const array = opt_array ? opt_array : [];\n array.push(this);\n return array;\n }\n\n /**\n * @param {Array<import(\"./Layer.js\").State>=} opt_states Optional list of layer states (to be modified in place).\n * @return {Array<import(\"./Layer.js\").State>} List of layer states.\n */\n getLayerStatesArray(opt_states) {\n const states = opt_states ? opt_states : [];\n states.push(this.getLayerState());\n return states;\n }\n\n /**\n * Get the layer source.\n * @return {SourceType} The layer source (or `null` if not yet set).\n * @observable\n * @api\n */\n getSource() {\n return /** @type {SourceType} */ (this.get(LayerProperty.SOURCE)) || null;\n }\n\n /**\n * @return {import(\"../source/State.js\").default} Source state.\n */\n getSourceState() {\n const source = this.getSource();\n return !source ? SourceState.UNDEFINED : source.getState();\n }\n\n /**\n * @private\n */\n handleSourceChange_() {\n this.changed();\n }\n\n /**\n * @private\n */\n handleSourcePropertyChange_() {\n if (this.sourceChangeKey_) {\n unlistenByKey(this.sourceChangeKey_);\n this.sourceChangeKey_ = null;\n }\n const source = this.getSource();\n if (source) {\n this.sourceChangeKey_ = listen(\n source,\n EventType.CHANGE,\n this.handleSourceChange_,\n this\n );\n }\n this.changed();\n }\n\n /**\n * @param {import(\"../pixel\").Pixel} pixel Pixel.\n * @return {Promise<Array<import(\"../Feature\").default>>} Promise that resolves with\n * an array of features.\n */\n getFeatures(pixel) {\n return this.renderer_.getFeatures(pixel);\n }\n\n /**\n * In charge to manage the rendering of the layer. One layer type is\n * bounded with one layer renderer.\n * @param {?import(\"../PluggableMap.js\").FrameState} frameState Frame state.\n * @param {HTMLElement} target Target which the renderer may (but need not) use\n * for rendering its content.\n * @return {HTMLElement} The rendered element.\n */\n render(frameState, target) {\n const layerRenderer = this.getRenderer();\n\n if (layerRenderer.prepareFrame(frameState)) {\n return layerRenderer.renderFrame(frameState, target);\n }\n }\n\n /**\n * Sets the layer to be rendered on top of other layers on a map. The map will\n * not manage this layer in its layers collection, and the callback in\n * {@link module:ol/Map#forEachLayerAtPixel} will receive `null` as layer. This\n * is useful for temporary layers. To remove an unmanaged layer from the map,\n * use `#setMap(null)`.\n *\n * To add the layer to a map and have it managed by the map, use\n * {@link module:ol/Map#addLayer} instead.\n * @param {import(\"../PluggableMap.js\").default} map Map.\n * @api\n */\n setMap(map) {\n if (this.mapPrecomposeKey_) {\n unlistenByKey(this.mapPrecomposeKey_);\n this.mapPrecomposeKey_ = null;\n }\n if (!map) {\n this.changed();\n }\n if (this.mapRenderKey_) {\n unlistenByKey(this.mapRenderKey_);\n this.mapRenderKey_ = null;\n }\n if (map) {\n this.mapPrecomposeKey_ = listen(\n map,\n RenderEventType.PRECOMPOSE,\n function (evt) {\n const renderEvent = /** @type {import(\"../render/Event.js\").default} */ (evt);\n const layerStatesArray = renderEvent.frameState.layerStatesArray;\n const layerState = this.getLayerState(false);\n // A layer can only be added to the map once. Use either `layer.setMap()` or `map.addLayer()`, not both.\n assert(\n !layerStatesArray.some(function (arrayLayerState) {\n return arrayLayerState.layer === layerState.layer;\n }),\n 67\n );\n layerStatesArray.push(layerState);\n },\n this\n );\n this.mapRenderKey_ = listen(this, EventType.CHANGE, map.render, map);\n this.changed();\n }\n }\n\n /**\n * Set the layer source.\n * @param {SourceType} source The layer source.\n * @observable\n * @api\n */\n setSource(source) {\n this.set(LayerProperty.SOURCE, source);\n }\n\n /**\n * Get the renderer for this layer.\n * @return {import(\"../renderer/Layer.js\").default} The layer renderer.\n */\n getRenderer() {\n if (!this.renderer_) {\n this.renderer_ = this.createRenderer();\n }\n return this.renderer_;\n }\n\n /**\n * @return {boolean} The layer has a renderer.\n */\n hasRenderer() {\n return !!this.renderer_;\n }\n\n /**\n * Create a renderer for this layer.\n * @return {import(\"../renderer/Layer.js\").default} A layer renderer.\n * @protected\n */\n createRenderer() {\n return null;\n }\n\n /**\n * Clean up.\n */\n disposeInternal() {\n this.setSource(null);\n super.disposeInternal();\n }\n}\n\n/**\n * Return `true` if the layer is visible and if the provided view state\n * has resolution and zoom levels that are in range of the layer's min/max.\n * @param {State} layerState Layer state.\n * @param {import(\"../View.js\").State} viewState View state.\n * @return {boolean} The layer is visible at the given view state.\n */\nexport function inView(layerState, viewState) {\n if (!layerState.visible) {\n return false;\n }\n const resolution = viewState.resolution;\n if (\n resolution < layerState.minResolution ||\n resolution >= layerState.maxResolution\n ) {\n return false;\n }\n const zoom = viewState.zoom;\n return zoom > layerState.minZoom && zoom <= layerState.maxZoom;\n}\n\nexport default Layer;\n","/**\n * @module ol/layer/BaseVector\n */\nimport Layer from './Layer.js';\nimport {assign} from '../obj.js';\nimport {\n createDefaultStyle,\n toFunction as toStyleFunction,\n} from '../style/Style.js';\n\n/**\n * @typedef {Object} Options\n * @property {string} [className='ol-layer'] A CSS class name to set to the layer element.\n * @property {number} [opacity=1] Opacity (0, 1).\n * @property {boolean} [visible=true] Visibility.\n * @property {import(\"../extent.js\").Extent} [extent] The bounding extent for layer rendering. The layer will not be\n * rendered outside of this extent.\n * @property {number} [zIndex] The z-index for layer rendering. At rendering time, the layers\n * will be ordered, first by Z-index and then by position. When `undefined`, a `zIndex` of 0 is assumed\n * for layers that are added to the map's `layers` collection, or `Infinity` when the layer's `setMap()`\n * method was used.\n * @property {number} [minResolution] The minimum resolution (inclusive) at which this layer will be\n * visible.\n * @property {number} [maxResolution] The maximum resolution (exclusive) below which this layer will\n * be visible.\n * @property {number} [minZoom] The minimum view zoom level (exclusive) above which this layer will be\n * visible.\n * @property {number} [maxZoom] The maximum view zoom level (inclusive) at which this layer will\n * be visible.\n * @property {import(\"../render.js\").OrderFunction} [renderOrder] Render order. Function to be used when sorting\n * features before rendering. By default features are drawn in the order that they are created. Use\n * `null` to avoid the sort, but get an undefined draw order.\n * @property {number} [renderBuffer=100] The buffer in pixels around the viewport extent used by the\n * renderer when getting features from the vector source for the rendering or hit-detection.\n * Recommended value: the size of the largest symbol, line width or label.\n * @property {import(\"../source/Vector.js\").default} [source] Source.\n * @property {import(\"../PluggableMap.js\").default} [map] Sets the layer as overlay on a map. The map will not manage\n * this layer in its layers collection, and the layer will be rendered on top. This is useful for\n * temporary layers. The standard way to add a layer to a map and have it managed by the map is to\n * use {@link module:ol/Map#addLayer}.\n * @property {boolean} [declutter=false] Declutter images and text. Decluttering is applied to all\n * image and text styles of all Vector and VectorTile layers that have set this to `true`. The priority\n * is defined by the z-index of the layer, the `zIndex` of the style and the render order of features.\n * Higher z-index means higher priority. Within the same z-index, a feature rendered before another has\n * higher priority.\n * @property {import(\"../style/Style.js\").StyleLike|null} [style] Layer style. When set to `null`, only\n * features that have their own style will be rendered. See {@link module:ol/style} for default style\n * which will be used if this is not set.\n * @property {boolean} [updateWhileAnimating=false] When set to `true`, feature batches will\n * be recreated during animations. This means that no vectors will be shown clipped, but the\n * setting will have a performance impact for large amounts of vector data. When set to `false`,\n * batches will be recreated when no animation is active.\n * @property {boolean} [updateWhileInteracting=false] When set to `true`, feature batches will\n * be recreated during interactions. See also `updateWhileAnimating`.\n */\n\n/**\n * @enum {string}\n * @private\n */\nconst Property = {\n RENDER_ORDER: 'renderOrder',\n};\n\n/**\n * @classdesc\n * Vector data that is rendered client-side.\n * Note that any property set in the options is set as a {@link module:ol/Object~BaseObject}\n * property on the layer object; for example, setting `title: 'My Title'` in the\n * options means that `title` is observable, and has get/set accessors.\n *\n * @template {import(\"../source/Vector.js\").default|import(\"../source/VectorTile.js\").default} VectorSourceType\n * @extends {Layer<VectorSourceType>}\n * @api\n */\nclass BaseVectorLayer extends Layer {\n /**\n * @param {Options=} opt_options Options.\n */\n constructor(opt_options) {\n const options = opt_options ? opt_options : {};\n\n const baseOptions = assign({}, options);\n\n delete baseOptions.style;\n delete baseOptions.renderBuffer;\n delete baseOptions.updateWhileAnimating;\n delete baseOptions.updateWhileInteracting;\n super(baseOptions);\n\n /**\n * @private\n * @type {boolean}\n */\n this.declutter_ =\n options.declutter !== undefined ? options.declutter : false;\n\n /**\n * @type {number}\n * @private\n */\n this.renderBuffer_ =\n options.renderBuffer !== undefined ? options.renderBuffer : 100;\n\n /**\n * User provided style.\n * @type {import(\"../style/Style.js\").StyleLike}\n * @private\n */\n this.style_ = null;\n\n /**\n * Style function for use within the library.\n * @type {import(\"../style/Style.js\").StyleFunction|undefined}\n * @private\n */\n this.styleFunction_ = undefined;\n\n this.setStyle(options.style);\n\n /**\n * @type {boolean}\n * @private\n */\n this.updateWhileAnimating_ =\n options.updateWhileAnimating !== undefined\n ? options.updateWhileAnimating\n : false;\n\n /**\n * @type {boolean}\n * @private\n */\n this.updateWhileInteracting_ =\n options.updateWhileInteracting !== undefined\n ? options.updateWhileInteracting\n : false;\n }\n\n /**\n * @return {boolean} Declutter.\n */\n getDeclutter() {\n return this.declutter_;\n }\n\n /**\n * Get the topmost feature that intersects the given pixel on the viewport. Returns a promise\n * that resolves with an array of features. The array will either contain the topmost feature\n * when a hit was detected, or it will be empty.\n *\n * The hit detection algorithm used for this method is optimized for performance, but is less\n * accurate than the one used in {@link import(\"../PluggableMap.js\").default#getFeaturesAtPixel}: Text\n * is not considered, and icons are only represented by their bounding box instead of the exact\n * image.\n *\n * @param {import(\"../pixel.js\").Pixel} pixel Pixel.\n * @return {Promise<Array<import(\"../Feature\").default>>} Promise that resolves with an array of features.\n * @api\n */\n getFeatures(pixel) {\n return super.getFeatures(pixel);\n }\n\n /**\n * @return {number|undefined} Render buffer.\n */\n getRenderBuffer() {\n return this.renderBuffer_;\n }\n\n /**\n * @return {function(import(\"../Feature.js\").default, import(\"../Feature.js\").default): number|null|undefined} Render\n * order.\n */\n getRenderOrder() {\n return /** @type {import(\"../render.js\").OrderFunction|null|undefined} */ (this.get(\n Property.RENDER_ORDER\n ));\n }\n\n /**\n * Get the style for features. This returns whatever was passed to the `style`\n * option at construction or to the `setStyle` method.\n * @return {import(\"../style/Style.js\").StyleLike|null|undefined} Layer style.\n * @api\n */\n getStyle() {\n return this.style_;\n }\n\n /**\n * Get the style function.\n * @return {import(\"../style/Style.js\").StyleFunction|undefined} Layer style function.\n * @api\n */\n getStyleFunction() {\n return this.styleFunction_;\n }\n\n /**\n * @return {boolean} Whether the rendered layer should be updated while\n * animating.\n */\n getUpdateWhileAnimating() {\n return this.updateWhileAnimating_;\n }\n\n /**\n * @return {boolean} Whether the rendered layer should be updated while\n * interacting.\n */\n getUpdateWhileInteracting() {\n return this.updateWhileInteracting_;\n }\n\n /**\n * @param {import(\"../render.js\").OrderFunction|null|undefined} renderOrder\n * Render order.\n */\n setRenderOrder(renderOrder) {\n this.set(Property.RENDER_ORDER, renderOrder);\n }\n\n /**\n * Set the style for features. This can be a single style object, an array\n * of styles, or a function that takes a feature and resolution and returns\n * an array of styles. If set to `null`, the layer has no style (a `null` style),\n * so only features that have their own styles will be rendered in the layer. Call\n * `setStyle()` without arguments to reset to the default style. See\n * {@link module:ol/style} for information on the default style.\n * @param {(import(\"../style/Style.js\").StyleLike|null)=} opt_style Layer style.\n * @api\n */\n setStyle(opt_style) {\n this.style_ = opt_style !== undefined ? opt_style : createDefaultStyle;\n this.styleFunction_ =\n opt_style === null ? undefined : toStyleFunction(this.style_);\n this.changed();\n }\n}\n\nexport default BaseVectorLayer;\n","/**\n * @module ol/render/canvas/Instruction\n */\n\n/**\n * @enum {number}\n */\nconst Instruction = {\n BEGIN_GEOMETRY: 0,\n BEGIN_PATH: 1,\n CIRCLE: 2,\n CLOSE_PATH: 3,\n CUSTOM: 4,\n DRAW_CHARS: 5,\n DRAW_IMAGE: 6,\n END_GEOMETRY: 7,\n FILL: 8,\n MOVE_TO_LINE_TO: 9,\n SET_FILL_STYLE: 10,\n SET_STROKE_STYLE: 11,\n STROKE: 12,\n};\n\n/**\n * @type {Array<Instruction>}\n */\nexport const fillInstruction = [Instruction.FILL];\n\n/**\n * @type {Array<Instruction>}\n */\nexport const strokeInstruction = [Instruction.STROKE];\n\n/**\n * @type {Array<Instruction>}\n */\nexport const beginPathInstruction = [Instruction.BEGIN_PATH];\n\n/**\n * @type {Array<Instruction>}\n */\nexport const closePathInstruction = [Instruction.CLOSE_PATH];\n\nexport default Instruction;\n","/**\n * @module ol/render/VectorContext\n */\n\n/**\n * @classdesc\n * Context for drawing geometries. A vector context is available on render\n * events and does not need to be constructed directly.\n * @api\n */\nclass VectorContext {\n /**\n * Render a geometry with a custom renderer.\n *\n * @param {import(\"../geom/SimpleGeometry.js\").default} geometry Geometry.\n * @param {import(\"../Feature.js\").FeatureLike} feature Feature.\n * @param {Function} renderer Renderer.\n */\n drawCustom(geometry, feature, renderer) {}\n\n /**\n * Render a geometry.\n *\n * @param {import(\"../geom/Geometry.js\").default} geometry The geometry to render.\n */\n drawGeometry(geometry) {}\n\n /**\n * Set the rendering style.\n *\n * @param {import(\"../style/Style.js\").default} style The rendering style.\n */\n setStyle(style) {}\n\n /**\n * @param {import(\"../geom/Circle.js\").default} circleGeometry Circle geometry.\n * @param {import(\"../Feature.js\").default} feature Feature.\n */\n drawCircle(circleGeometry, feature) {}\n\n /**\n * @param {import(\"../Feature.js\").default} feature Feature.\n * @param {import(\"../style/Style.js\").default} style Style.\n */\n drawFeature(feature, style) {}\n\n /**\n * @param {import(\"../geom/GeometryCollection.js\").default} geometryCollectionGeometry Geometry collection.\n * @param {import(\"../Feature.js\").default} feature Feature.\n */\n drawGeometryCollection(geometryCollectionGeometry, feature) {}\n\n /**\n * @param {import(\"../geom/LineString.js\").default|import(\"./Feature.js\").default} lineStringGeometry Line string geometry.\n * @param {import(\"../Feature.js\").FeatureLike} feature Feature.\n */\n drawLineString(lineStringGeometry, feature) {}\n\n /**\n * @param {import(\"../geom/MultiLineString.js\").default|import(\"./Feature.js\").default} multiLineStringGeometry MultiLineString geometry.\n * @param {import(\"../Feature.js\").FeatureLike} feature Feature.\n */\n drawMultiLineString(multiLineStringGeometry, feature) {}\n\n /**\n * @param {import(\"../geom/MultiPoint.js\").default|import(\"./Feature.js\").default} multiPointGeometry MultiPoint geometry.\n * @param {import(\"../Feature.js\").FeatureLike} feature Feature.\n */\n drawMultiPoint(multiPointGeometry, feature) {}\n\n /**\n * @param {import(\"../geom/MultiPolygon.js\").default} multiPolygonGeometry MultiPolygon geometry.\n * @param {import(\"../Feature.js\").FeatureLike} feature Feature.\n */\n drawMultiPolygon(multiPolygonGeometry, feature) {}\n\n /**\n * @param {import(\"../geom/Point.js\").default|import(\"./Feature.js\").default} pointGeometry Point geometry.\n * @param {import(\"../Feature.js\").FeatureLike} feature Feature.\n */\n drawPoint(pointGeometry, feature) {}\n\n /**\n * @param {import(\"../geom/Polygon.js\").default|import(\"./Feature.js\").default} polygonGeometry Polygon geometry.\n * @param {import(\"../Feature.js\").FeatureLike} feature Feature.\n */\n drawPolygon(polygonGeometry, feature) {}\n\n /**\n * @param {import(\"../geom/SimpleGeometry.js\").default|import(\"./Feature.js\").default} geometry Geometry.\n * @param {import(\"../Feature.js\").FeatureLike} feature Feature.\n */\n drawText(geometry, feature) {}\n\n /**\n * @param {import(\"../style/Fill.js\").default} fillStyle Fill style.\n * @param {import(\"../style/Stroke.js\").default} strokeStyle Stroke style.\n */\n setFillStrokeStyle(fillStyle, strokeStyle) {}\n\n /**\n * @param {import(\"../style/Image.js\").default} imageStyle Image style.\n * @param {import(\"./canvas.js\").DeclutterGroup=} opt_declutterGroup Declutter.\n */\n setImageStyle(imageStyle, opt_declutterGroup) {}\n\n /**\n * @param {import(\"../style/Text.js\").default} textStyle Text style.\n * @param {import(\"./canvas.js\").DeclutterGroups=} opt_declutterGroups Declutter.\n */\n setTextStyle(textStyle, opt_declutterGroups) {}\n}\n\nexport default VectorContext;\n","/**\n * @module ol/render/canvas/Builder\n */\nimport CanvasInstruction from './Instruction.js';\nimport GeometryType from '../../geom/GeometryType.js';\nimport Relationship from '../../extent/Relationship.js';\nimport VectorContext from '../VectorContext.js';\nimport {asColorLike} from '../../colorlike.js';\nimport {buffer, clone, coordinateRelationship} from '../../extent.js';\nimport {\n defaultFillStyle,\n defaultLineCap,\n defaultLineDash,\n defaultLineDashOffset,\n defaultLineJoin,\n defaultLineWidth,\n defaultMiterLimit,\n defaultStrokeStyle,\n} from '../canvas.js';\nimport {equals, reverseSubArray} from '../../array.js';\nimport {\n inflateCoordinates,\n inflateCoordinatesArray,\n inflateMultiCoordinatesArray,\n} from '../../geom/flat/inflate.js';\n\n/**\n * @typedef {Object} SerializableInstructions\n * @property {Array<*>} instructions The rendering instructions.\n * @property {Array<*>} hitDetectionInstructions The rendering hit detection instructions.\n * @property {Array<number>} coordinates The array of all coordinates.\n * @property {!Object<string, import(\"../canvas.js\").TextState>} [textStates] The text states (decluttering).\n * @property {!Object<string, import(\"../canvas.js\").FillState>} [fillStates] The fill states (decluttering).\n * @property {!Object<string, import(\"../canvas.js\").StrokeState>} [strokeStates] The stroke states (decluttering).\n */\n\nclass CanvasBuilder extends VectorContext {\n /**\n * @param {number} tolerance Tolerance.\n * @param {import(\"../../extent.js\").Extent} maxExtent Maximum extent.\n * @param {number} resolution Resolution.\n * @param {number} pixelRatio Pixel ratio.\n */\n constructor(tolerance, maxExtent, resolution, pixelRatio) {\n super();\n\n /**\n * @protected\n * @type {number}\n */\n this.tolerance = tolerance;\n\n /**\n * @protected\n * @const\n * @type {import(\"../../extent.js\").Extent}\n */\n this.maxExtent = maxExtent;\n\n /**\n * @protected\n * @type {number}\n */\n this.pixelRatio = pixelRatio;\n\n /**\n * @protected\n * @type {number}\n */\n this.maxLineWidth = 0;\n\n /**\n * @protected\n * @const\n * @type {number}\n */\n this.resolution = resolution;\n\n /**\n * @private\n * @type {Array<*>}\n */\n this.beginGeometryInstruction1_ = null;\n\n /**\n * @private\n * @type {Array<*>}\n */\n this.beginGeometryInstruction2_ = null;\n\n /**\n * @private\n * @type {import(\"../../extent.js\").Extent}\n */\n this.bufferedMaxExtent_ = null;\n\n /**\n * @protected\n * @type {Array<*>}\n */\n this.instructions = [];\n\n /**\n * @protected\n * @type {Array<number>}\n */\n this.coordinates = [];\n\n /**\n * @private\n * @type {import(\"../../coordinate.js\").Coordinate}\n */\n this.tmpCoordinate_ = [];\n\n /**\n * @protected\n * @type {Array<*>}\n */\n this.hitDetectionInstructions = [];\n\n /**\n * @protected\n * @type {import(\"../canvas.js\").FillStrokeState}\n */\n this.state = /** @type {import(\"../canvas.js\").FillStrokeState} */ ({});\n }\n\n /**\n * @protected\n * @param {Array<number>} dashArray Dash array.\n * @return {Array<number>} Dash array with pixel ratio applied\n */\n applyPixelRatio(dashArray) {\n const pixelRatio = this.pixelRatio;\n return pixelRatio == 1\n ? dashArray\n : dashArray.map(function (dash) {\n return dash * pixelRatio;\n });\n }\n\n /**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {boolean} closed Last input coordinate equals first.\n * @param {boolean} skipFirst Skip first coordinate.\n * @protected\n * @return {number} My end.\n */\n appendFlatCoordinates(\n flatCoordinates,\n offset,\n end,\n stride,\n closed,\n skipFirst\n ) {\n let myEnd = this.coordinates.length;\n const extent = this.getBufferedMaxExtent();\n if (skipFirst) {\n offset += stride;\n }\n let lastXCoord = flatCoordinates[offset];\n let lastYCoord = flatCoordinates[offset + 1];\n const nextCoord = this.tmpCoordinate_;\n let skipped = true;\n\n let i, lastRel, nextRel;\n for (i = offset + stride; i < end; i += stride) {\n nextCoord[0] = flatCoordinates[i];\n nextCoord[1] = flatCoordinates[i + 1];\n nextRel = coordinateRelationship(extent, nextCoord);\n if (nextRel !== lastRel) {\n if (skipped) {\n this.coordinates[myEnd++] = lastXCoord;\n this.coordinates[myEnd++] = lastYCoord;\n }\n this.coordinates[myEnd++] = nextCoord[0];\n this.coordinates[myEnd++] = nextCoord[1];\n skipped = false;\n } else if (nextRel === Relationship.INTERSECTING) {\n this.coordinates[myEnd++] = nextCoord[0];\n this.coordinates[myEnd++] = nextCoord[1];\n skipped = false;\n } else {\n skipped = true;\n }\n lastXCoord = nextCoord[0];\n lastYCoord = nextCoord[1];\n lastRel = nextRel;\n }\n\n // Last coordinate equals first or only one point to append:\n if ((closed && skipped) || i === offset + stride) {\n this.coordinates[myEnd++] = lastXCoord;\n this.coordinates[myEnd++] = lastYCoord;\n }\n return myEnd;\n }\n\n /**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array<number>} ends Ends.\n * @param {number} stride Stride.\n * @param {Array<number>} builderEnds Builder ends.\n * @return {number} Offset.\n */\n drawCustomCoordinates_(flatCoordinates, offset, ends, stride, builderEnds) {\n for (let i = 0, ii = ends.length; i < ii; ++i) {\n const end = ends[i];\n const builderEnd = this.appendFlatCoordinates(\n flatCoordinates,\n offset,\n end,\n stride,\n false,\n false\n );\n builderEnds.push(builderEnd);\n offset = end;\n }\n return offset;\n }\n\n /**\n * @param {import(\"../../geom/SimpleGeometry.js\").default} geometry Geometry.\n * @param {import(\"../../Feature.js\").FeatureLike} feature Feature.\n * @param {Function} renderer Renderer.\n */\n drawCustom(geometry, feature, renderer) {\n this.beginGeometry(geometry, feature);\n const type = geometry.getType();\n const stride = geometry.getStride();\n const builderBegin = this.coordinates.length;\n let flatCoordinates, builderEnd, builderEnds, builderEndss;\n let offset;\n if (type == GeometryType.MULTI_POLYGON) {\n flatCoordinates = /** @type {import(\"../../geom/MultiPolygon.js\").default} */ (geometry).getOrientedFlatCoordinates();\n builderEndss = [];\n const endss = /** @type {import(\"../../geom/MultiPolygon.js\").default} */ (geometry).getEndss();\n offset = 0;\n for (let i = 0, ii = endss.length; i < ii; ++i) {\n const myEnds = [];\n offset = this.drawCustomCoordinates_(\n flatCoordinates,\n offset,\n endss[i],\n stride,\n myEnds\n );\n builderEndss.push(myEnds);\n }\n this.instructions.push([\n CanvasInstruction.CUSTOM,\n builderBegin,\n builderEndss,\n geometry,\n renderer,\n inflateMultiCoordinatesArray,\n ]);\n } else if (\n type == GeometryType.POLYGON ||\n type == GeometryType.MULTI_LINE_STRING\n ) {\n builderEnds = [];\n flatCoordinates =\n type == GeometryType.POLYGON\n ? /** @type {import(\"../../geom/Polygon.js\").default} */ (geometry).getOrientedFlatCoordinates()\n : geometry.getFlatCoordinates();\n offset = this.drawCustomCoordinates_(\n flatCoordinates,\n 0,\n /** @type {import(\"../../geom/Polygon.js\").default|import(\"../../geom/MultiLineString.js\").default} */ (geometry).getEnds(),\n stride,\n builderEnds\n );\n this.instructions.push([\n CanvasInstruction.CUSTOM,\n builderBegin,\n builderEnds,\n geometry,\n renderer,\n inflateCoordinatesArray,\n ]);\n } else if (\n type == GeometryType.LINE_STRING ||\n type == GeometryType.MULTI_POINT\n ) {\n flatCoordinates = geometry.getFlatCoordinates();\n builderEnd = this.appendFlatCoordinates(\n flatCoordinates,\n 0,\n flatCoordinates.length,\n stride,\n false,\n false\n );\n this.instructions.push([\n CanvasInstruction.CUSTOM,\n builderBegin,\n builderEnd,\n geometry,\n renderer,\n inflateCoordinates,\n ]);\n } else if (type == GeometryType.POINT) {\n flatCoordinates = geometry.getFlatCoordinates();\n this.coordinates.push(flatCoordinates[0], flatCoordinates[1]);\n builderEnd = this.coordinates.length;\n this.instructions.push([\n CanvasInstruction.CUSTOM,\n builderBegin,\n builderEnd,\n geometry,\n renderer,\n ]);\n }\n this.endGeometry(feature);\n }\n\n /**\n * @protected\n * @param {import(\"../../geom/Geometry\").default|import(\"../Feature.js\").default} geometry The geometry.\n * @param {import(\"../../Feature.js\").FeatureLike} feature Feature.\n */\n beginGeometry(geometry, feature) {\n const extent = geometry.getExtent();\n this.beginGeometryInstruction1_ = [\n CanvasInstruction.BEGIN_GEOMETRY,\n feature,\n 0,\n extent,\n ];\n this.instructions.push(this.beginGeometryInstruction1_);\n this.beginGeometryInstruction2_ = [\n CanvasInstruction.BEGIN_GEOMETRY,\n feature,\n 0,\n extent,\n ];\n this.hitDetectionInstructions.push(this.beginGeometryInstruction2_);\n }\n\n /**\n * @return {SerializableInstructions} the serializable instructions.\n */\n finish() {\n return {\n instructions: this.instructions,\n hitDetectionInstructions: this.hitDetectionInstructions,\n coordinates: this.coordinates,\n };\n }\n\n /**\n * Reverse the hit detection instructions.\n */\n reverseHitDetectionInstructions() {\n const hitDetectionInstructions = this.hitDetectionInstructions;\n // step 1 - reverse array\n hitDetectionInstructions.reverse();\n // step 2 - reverse instructions within geometry blocks\n let i;\n const n = hitDetectionInstructions.length;\n let instruction;\n let type;\n let begin = -1;\n for (i = 0; i < n; ++i) {\n instruction = hitDetectionInstructions[i];\n type = /** @type {import(\"./Instruction.js\").default} */ (instruction[0]);\n if (type == CanvasInstruction.END_GEOMETRY) {\n begin = i;\n } else if (type == CanvasInstruction.BEGIN_GEOMETRY) {\n instruction[2] = i;\n reverseSubArray(this.hitDetectionInstructions, begin, i);\n begin = -1;\n }\n }\n }\n\n /**\n * @param {import(\"../../style/Fill.js\").default} fillStyle Fill style.\n * @param {import(\"../../style/Stroke.js\").default} strokeStyle Stroke style.\n */\n setFillStrokeStyle(fillStyle, strokeStyle) {\n const state = this.state;\n if (fillStyle) {\n const fillStyleColor = fillStyle.getColor();\n state.fillStyle = asColorLike(\n fillStyleColor ? fillStyleColor : defaultFillStyle\n );\n } else {\n state.fillStyle = undefined;\n }\n if (strokeStyle) {\n const strokeStyleColor = strokeStyle.getColor();\n state.strokeStyle = asColorLike(\n strokeStyleColor ? strokeStyleColor : defaultStrokeStyle\n );\n const strokeStyleLineCap = strokeStyle.getLineCap();\n state.lineCap =\n strokeStyleLineCap !== undefined ? strokeStyleLineCap : defaultLineCap;\n const strokeStyleLineDash = strokeStyle.getLineDash();\n state.lineDash = strokeStyleLineDash\n ? strokeStyleLineDash.slice()\n : defaultLineDash;\n const strokeStyleLineDashOffset = strokeStyle.getLineDashOffset();\n state.lineDashOffset = strokeStyleLineDashOffset\n ? strokeStyleLineDashOffset\n : defaultLineDashOffset;\n const strokeStyleLineJoin = strokeStyle.getLineJoin();\n state.lineJoin =\n strokeStyleLineJoin !== undefined\n ? strokeStyleLineJoin\n : defaultLineJoin;\n const strokeStyleWidth = strokeStyle.getWidth();\n state.lineWidth =\n strokeStyleWidth !== undefined ? strokeStyleWidth : defaultLineWidth;\n const strokeStyleMiterLimit = strokeStyle.getMiterLimit();\n state.miterLimit =\n strokeStyleMiterLimit !== undefined\n ? strokeStyleMiterLimit\n : defaultMiterLimit;\n\n if (state.lineWidth > this.maxLineWidth) {\n this.maxLineWidth = state.lineWidth;\n // invalidate the buffered max extent cache\n this.bufferedMaxExtent_ = null;\n }\n } else {\n state.strokeStyle = undefined;\n state.lineCap = undefined;\n state.lineDash = null;\n state.lineDashOffset = undefined;\n state.lineJoin = undefined;\n state.lineWidth = undefined;\n state.miterLimit = undefined;\n }\n }\n\n /**\n * @param {import(\"../canvas.js\").FillStrokeState} state State.\n * @return {Array<*>} Fill instruction.\n */\n createFill(state) {\n const fillStyle = state.fillStyle;\n /** @type {Array<*>} */\n const fillInstruction = [CanvasInstruction.SET_FILL_STYLE, fillStyle];\n if (typeof fillStyle !== 'string') {\n // Fill is a pattern or gradient - align it!\n fillInstruction.push(true);\n }\n return fillInstruction;\n }\n\n /**\n * @param {import(\"../canvas.js\").FillStrokeState} state State.\n */\n applyStroke(state) {\n this.instructions.push(this.createStroke(state));\n }\n\n /**\n * @param {import(\"../canvas.js\").FillStrokeState} state State.\n * @return {Array<*>} Stroke instruction.\n */\n createStroke(state) {\n return [\n CanvasInstruction.SET_STROKE_STYLE,\n state.strokeStyle,\n state.lineWidth * this.pixelRatio,\n state.lineCap,\n state.lineJoin,\n state.miterLimit,\n this.applyPixelRatio(state.lineDash),\n state.lineDashOffset * this.pixelRatio,\n ];\n }\n\n /**\n * @param {import(\"../canvas.js\").FillStrokeState} state State.\n * @param {function(this:CanvasBuilder, import(\"../canvas.js\").FillStrokeState):Array<*>} createFill Create fill.\n */\n updateFillStyle(state, createFill) {\n const fillStyle = state.fillStyle;\n if (typeof fillStyle !== 'string' || state.currentFillStyle != fillStyle) {\n if (fillStyle !== undefined) {\n this.instructions.push(createFill.call(this, state));\n }\n state.currentFillStyle = fillStyle;\n }\n }\n\n /**\n * @param {import(\"../canvas.js\").FillStrokeState} state State.\n * @param {function(this:CanvasBuilder, import(\"../canvas.js\").FillStrokeState): void} applyStroke Apply stroke.\n */\n updateStrokeStyle(state, applyStroke) {\n const strokeStyle = state.strokeStyle;\n const lineCap = state.lineCap;\n const lineDash = state.lineDash;\n const lineDashOffset = state.lineDashOffset;\n const lineJoin = state.lineJoin;\n const lineWidth = state.lineWidth;\n const miterLimit = state.miterLimit;\n if (\n state.currentStrokeStyle != strokeStyle ||\n state.currentLineCap != lineCap ||\n (lineDash != state.currentLineDash &&\n !equals(state.currentLineDash, lineDash)) ||\n state.currentLineDashOffset != lineDashOffset ||\n state.currentLineJoin != lineJoin ||\n state.currentLineWidth != lineWidth ||\n state.currentMiterLimit != miterLimit\n ) {\n if (strokeStyle !== undefined) {\n applyStroke.call(this, state);\n }\n state.currentStrokeStyle = strokeStyle;\n state.currentLineCap = lineCap;\n state.currentLineDash = lineDash;\n state.currentLineDashOffset = lineDashOffset;\n state.currentLineJoin = lineJoin;\n state.currentLineWidth = lineWidth;\n state.currentMiterLimit = miterLimit;\n }\n }\n\n /**\n * @param {import(\"../../Feature.js\").FeatureLike} feature Feature.\n */\n endGeometry(feature) {\n this.beginGeometryInstruction1_[2] = this.instructions.length;\n this.beginGeometryInstruction1_ = null;\n this.beginGeometryInstruction2_[2] = this.hitDetectionInstructions.length;\n this.beginGeometryInstruction2_ = null;\n const endGeometryInstruction = [CanvasInstruction.END_GEOMETRY, feature];\n this.instructions.push(endGeometryInstruction);\n this.hitDetectionInstructions.push(endGeometryInstruction);\n }\n\n /**\n * Get the buffered rendering extent. Rendering will be clipped to the extent\n * provided to the constructor. To account for symbolizers that may intersect\n * this extent, we calculate a buffered extent (e.g. based on stroke width).\n * @return {import(\"../../extent.js\").Extent} The buffered rendering extent.\n * @protected\n */\n getBufferedMaxExtent() {\n if (!this.bufferedMaxExtent_) {\n this.bufferedMaxExtent_ = clone(this.maxExtent);\n if (this.maxLineWidth > 0) {\n const width = (this.resolution * (this.maxLineWidth + 1)) / 2;\n buffer(this.bufferedMaxExtent_, width, this.bufferedMaxExtent_);\n }\n }\n return this.bufferedMaxExtent_;\n }\n}\n\nexport default CanvasBuilder;\n","/**\n * @module ol/render/canvas/ImageBuilder\n */\nimport CanvasBuilder from './Builder.js';\nimport CanvasInstruction from './Instruction.js';\n\nclass CanvasImageBuilder extends CanvasBuilder {\n /**\n * @param {number} tolerance Tolerance.\n * @param {import(\"../../extent.js\").Extent} maxExtent Maximum extent.\n * @param {number} resolution Resolution.\n * @param {number} pixelRatio Pixel ratio.\n */\n constructor(tolerance, maxExtent, resolution, pixelRatio) {\n super(tolerance, maxExtent, resolution, pixelRatio);\n\n /**\n * @private\n * @type {import(\"../canvas.js\").DeclutterGroups}\n */\n this.declutterGroups_ = null;\n\n /**\n * @private\n * @type {HTMLCanvasElement|HTMLVideoElement|HTMLImageElement}\n */\n this.hitDetectionImage_ = null;\n\n /**\n * @private\n * @type {HTMLCanvasElement|HTMLVideoElement|HTMLImageElement}\n */\n this.image_ = null;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.imagePixelRatio_ = undefined;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.anchorX_ = undefined;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.anchorY_ = undefined;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.height_ = undefined;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.opacity_ = undefined;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.originX_ = undefined;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.originY_ = undefined;\n\n /**\n * @private\n * @type {boolean|undefined}\n */\n this.rotateWithView_ = undefined;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.rotation_ = undefined;\n\n /**\n * @private\n * @type {import(\"../../size.js\").Size|undefined}\n */\n this.scale_ = undefined;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.width_ = undefined;\n }\n\n /**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @private\n * @return {number} My end.\n */\n drawCoordinates_(flatCoordinates, offset, end, stride) {\n return this.appendFlatCoordinates(\n flatCoordinates,\n offset,\n end,\n stride,\n false,\n false\n );\n }\n\n /**\n * @param {import(\"../../geom/Point.js\").default|import(\"../Feature.js\").default} pointGeometry Point geometry.\n * @param {import(\"../../Feature.js\").FeatureLike} feature Feature.\n */\n drawPoint(pointGeometry, feature) {\n if (!this.image_) {\n return;\n }\n this.beginGeometry(pointGeometry, feature);\n const flatCoordinates = pointGeometry.getFlatCoordinates();\n const stride = pointGeometry.getStride();\n const myBegin = this.coordinates.length;\n const myEnd = this.drawCoordinates_(\n flatCoordinates,\n 0,\n flatCoordinates.length,\n stride\n );\n this.instructions.push([\n CanvasInstruction.DRAW_IMAGE,\n myBegin,\n myEnd,\n this.image_,\n // Remaining arguments to DRAW_IMAGE are in alphabetical order\n this.anchorX_ * this.imagePixelRatio_,\n this.anchorY_ * this.imagePixelRatio_,\n this.declutterGroups_,\n Math.ceil(this.height_ * this.imagePixelRatio_),\n this.opacity_,\n this.originX_,\n this.originY_,\n this.rotateWithView_,\n this.rotation_,\n [\n (this.scale_[0] * this.pixelRatio) / this.imagePixelRatio_,\n (this.scale_[1] * this.pixelRatio) / this.imagePixelRatio_,\n ],\n Math.ceil(this.width_ * this.imagePixelRatio_),\n ]);\n this.hitDetectionInstructions.push([\n CanvasInstruction.DRAW_IMAGE,\n myBegin,\n myEnd,\n this.hitDetectionImage_,\n // Remaining arguments to DRAW_IMAGE are in alphabetical order\n this.anchorX_,\n this.anchorY_,\n this.declutterGroups_,\n this.height_,\n this.opacity_,\n this.originX_,\n this.originY_,\n this.rotateWithView_,\n this.rotation_,\n this.scale_,\n this.width_,\n ]);\n this.endGeometry(feature);\n }\n\n /**\n * @param {import(\"../../geom/MultiPoint.js\").default|import(\"../Feature.js\").default} multiPointGeometry MultiPoint geometry.\n * @param {import(\"../../Feature.js\").FeatureLike} feature Feature.\n */\n drawMultiPoint(multiPointGeometry, feature) {\n if (!this.image_) {\n return;\n }\n this.beginGeometry(multiPointGeometry, feature);\n const flatCoordinates = multiPointGeometry.getFlatCoordinates();\n const stride = multiPointGeometry.getStride();\n const myBegin = this.coordinates.length;\n const myEnd = this.drawCoordinates_(\n flatCoordinates,\n 0,\n flatCoordinates.length,\n stride\n );\n this.instructions.push([\n CanvasInstruction.DRAW_IMAGE,\n myBegin,\n myEnd,\n this.image_,\n // Remaining arguments to DRAW_IMAGE are in alphabetical order\n this.anchorX_ * this.imagePixelRatio_,\n this.anchorY_ * this.imagePixelRatio_,\n this.declutterGroups_,\n Math.ceil(this.height_ * this.imagePixelRatio_),\n this.opacity_,\n this.originX_,\n this.originY_,\n this.rotateWithView_,\n this.rotation_,\n [\n (this.scale_[0] * this.pixelRatio) / this.imagePixelRatio_,\n (this.scale_[1] * this.pixelRatio) / this.imagePixelRatio_,\n ],\n Math.ceil(this.width_ * this.imagePixelRatio_),\n ]);\n this.hitDetectionInstructions.push([\n CanvasInstruction.DRAW_IMAGE,\n myBegin,\n myEnd,\n this.hitDetectionImage_,\n // Remaining arguments to DRAW_IMAGE are in alphabetical order\n this.anchorX_,\n this.anchorY_,\n this.declutterGroups_,\n this.height_,\n this.opacity_,\n this.originX_,\n this.originY_,\n this.rotateWithView_,\n this.rotation_,\n this.scale_,\n this.width_,\n ]);\n this.endGeometry(feature);\n }\n\n /**\n * @return {import(\"./Builder.js\").SerializableInstructions} the serializable instructions.\n */\n finish() {\n this.reverseHitDetectionInstructions();\n // FIXME this doesn't really protect us against further calls to draw*Geometry\n this.anchorX_ = undefined;\n this.anchorY_ = undefined;\n this.hitDetectionImage_ = null;\n this.image_ = null;\n this.imagePixelRatio_ = undefined;\n this.height_ = undefined;\n this.scale_ = undefined;\n this.opacity_ = undefined;\n this.originX_ = undefined;\n this.originY_ = undefined;\n this.rotateWithView_ = undefined;\n this.rotation_ = undefined;\n this.width_ = undefined;\n return super.finish();\n }\n\n /**\n * @param {import(\"../../style/Image.js\").default} imageStyle Image style.\n * @param {import(\"../canvas.js\").DeclutterGroup} declutterGroups Declutter.\n */\n setImageStyle(imageStyle, declutterGroups) {\n const anchor = imageStyle.getAnchor();\n const size = imageStyle.getSize();\n const hitDetectionImage = imageStyle.getHitDetectionImage();\n const image = imageStyle.getImage(this.pixelRatio);\n const origin = imageStyle.getOrigin();\n this.imagePixelRatio_ = imageStyle.getPixelRatio(this.pixelRatio);\n this.anchorX_ = anchor[0];\n this.anchorY_ = anchor[1];\n this.declutterGroups_ = declutterGroups;\n this.hitDetectionImage_ = hitDetectionImage;\n this.image_ = image;\n this.height_ = size[1];\n this.opacity_ = imageStyle.getOpacity();\n this.originX_ = origin[0];\n this.originY_ = origin[1];\n this.rotateWithView_ = imageStyle.getRotateWithView();\n this.rotation_ = imageStyle.getRotation();\n this.scale_ = imageStyle.getScaleArray();\n this.width_ = size[0];\n }\n}\n\nexport default CanvasImageBuilder;\n","/**\n * @module ol/render/canvas/LineStringBuilder\n */\nimport CanvasBuilder from './Builder.js';\nimport CanvasInstruction, {\n beginPathInstruction,\n strokeInstruction,\n} from './Instruction.js';\n\nclass CanvasLineStringBuilder extends CanvasBuilder {\n /**\n * @param {number} tolerance Tolerance.\n * @param {import(\"../../extent.js\").Extent} maxExtent Maximum extent.\n * @param {number} resolution Resolution.\n * @param {number} pixelRatio Pixel ratio.\n */\n constructor(tolerance, maxExtent, resolution, pixelRatio) {\n super(tolerance, maxExtent, resolution, pixelRatio);\n }\n\n /**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @private\n * @return {number} end.\n */\n drawFlatCoordinates_(flatCoordinates, offset, end, stride) {\n const myBegin = this.coordinates.length;\n const myEnd = this.appendFlatCoordinates(\n flatCoordinates,\n offset,\n end,\n stride,\n false,\n false\n );\n const moveToLineToInstruction = [\n CanvasInstruction.MOVE_TO_LINE_TO,\n myBegin,\n myEnd,\n ];\n this.instructions.push(moveToLineToInstruction);\n this.hitDetectionInstructions.push(moveToLineToInstruction);\n return end;\n }\n\n /**\n * @param {import(\"../../geom/LineString.js\").default|import(\"../Feature.js\").default} lineStringGeometry Line string geometry.\n * @param {import(\"../../Feature.js\").FeatureLike} feature Feature.\n */\n drawLineString(lineStringGeometry, feature) {\n const state = this.state;\n const strokeStyle = state.strokeStyle;\n const lineWidth = state.lineWidth;\n if (strokeStyle === undefined || lineWidth === undefined) {\n return;\n }\n this.updateStrokeStyle(state, this.applyStroke);\n this.beginGeometry(lineStringGeometry, feature);\n this.hitDetectionInstructions.push(\n [\n CanvasInstruction.SET_STROKE_STYLE,\n state.strokeStyle,\n state.lineWidth,\n state.lineCap,\n state.lineJoin,\n state.miterLimit,\n state.lineDash,\n state.lineDashOffset,\n ],\n beginPathInstruction\n );\n const flatCoordinates = lineStringGeometry.getFlatCoordinates();\n const stride = lineStringGeometry.getStride();\n this.drawFlatCoordinates_(\n flatCoordinates,\n 0,\n flatCoordinates.length,\n stride\n );\n this.hitDetectionInstructions.push(strokeInstruction);\n this.endGeometry(feature);\n }\n\n /**\n * @param {import(\"../../geom/MultiLineString.js\").default|import(\"../Feature.js\").default} multiLineStringGeometry MultiLineString geometry.\n * @param {import(\"../../Feature.js\").FeatureLike} feature Feature.\n */\n drawMultiLineString(multiLineStringGeometry, feature) {\n const state = this.state;\n const strokeStyle = state.strokeStyle;\n const lineWidth = state.lineWidth;\n if (strokeStyle === undefined || lineWidth === undefined) {\n return;\n }\n this.updateStrokeStyle(state, this.applyStroke);\n this.beginGeometry(multiLineStringGeometry, feature);\n this.hitDetectionInstructions.push(\n [\n CanvasInstruction.SET_STROKE_STYLE,\n state.strokeStyle,\n state.lineWidth,\n state.lineCap,\n state.lineJoin,\n state.miterLimit,\n state.lineDash,\n state.lineDashOffset,\n ],\n beginPathInstruction\n );\n const ends = multiLineStringGeometry.getEnds();\n const flatCoordinates = multiLineStringGeometry.getFlatCoordinates();\n const stride = multiLineStringGeometry.getStride();\n let offset = 0;\n for (let i = 0, ii = ends.length; i < ii; ++i) {\n offset = this.drawFlatCoordinates_(\n flatCoordinates,\n offset,\n /** @type {number} */ (ends[i]),\n stride\n );\n }\n this.hitDetectionInstructions.push(strokeInstruction);\n this.endGeometry(feature);\n }\n\n /**\n * @return {import(\"./Builder.js\").SerializableInstructions} the serializable instructions.\n */\n finish() {\n const state = this.state;\n if (\n state.lastStroke != undefined &&\n state.lastStroke != this.coordinates.length\n ) {\n this.instructions.push(strokeInstruction);\n }\n this.reverseHitDetectionInstructions();\n this.state = null;\n return super.finish();\n }\n\n /**\n * @param {import(\"../canvas.js\").FillStrokeState} state State.\n */\n applyStroke(state) {\n if (\n state.lastStroke != undefined &&\n state.lastStroke != this.coordinates.length\n ) {\n this.instructions.push(strokeInstruction);\n state.lastStroke = this.coordinates.length;\n }\n state.lastStroke = 0;\n super.applyStroke(state);\n this.instructions.push(beginPathInstruction);\n }\n}\n\nexport default CanvasLineStringBuilder;\n","/**\n * @module ol/render/canvas/PolygonBuilder\n */\nimport CanvasBuilder from './Builder.js';\nimport CanvasInstruction, {\n beginPathInstruction,\n closePathInstruction,\n fillInstruction,\n strokeInstruction,\n} from './Instruction.js';\nimport {defaultFillStyle} from '../canvas.js';\nimport {snap} from '../../geom/flat/simplify.js';\n\nclass CanvasPolygonBuilder extends CanvasBuilder {\n /**\n * @param {number} tolerance Tolerance.\n * @param {import(\"../../extent.js\").Extent} maxExtent Maximum extent.\n * @param {number} resolution Resolution.\n * @param {number} pixelRatio Pixel ratio.\n */\n constructor(tolerance, maxExtent, resolution, pixelRatio) {\n super(tolerance, maxExtent, resolution, pixelRatio);\n }\n\n /**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array<number>} ends Ends.\n * @param {number} stride Stride.\n * @private\n * @return {number} End.\n */\n drawFlatCoordinatess_(flatCoordinates, offset, ends, stride) {\n const state = this.state;\n const fill = state.fillStyle !== undefined;\n const stroke = state.strokeStyle !== undefined;\n const numEnds = ends.length;\n this.instructions.push(beginPathInstruction);\n this.hitDetectionInstructions.push(beginPathInstruction);\n for (let i = 0; i < numEnds; ++i) {\n const end = ends[i];\n const myBegin = this.coordinates.length;\n const myEnd = this.appendFlatCoordinates(\n flatCoordinates,\n offset,\n end,\n stride,\n true,\n !stroke\n );\n const moveToLineToInstruction = [\n CanvasInstruction.MOVE_TO_LINE_TO,\n myBegin,\n myEnd,\n ];\n this.instructions.push(moveToLineToInstruction);\n this.hitDetectionInstructions.push(moveToLineToInstruction);\n if (stroke) {\n // Performance optimization: only call closePath() when we have a stroke.\n // Otherwise the ring is closed already (see appendFlatCoordinates above).\n this.instructions.push(closePathInstruction);\n this.hitDetectionInstructions.push(closePathInstruction);\n }\n offset = end;\n }\n if (fill) {\n this.instructions.push(fillInstruction);\n this.hitDetectionInstructions.push(fillInstruction);\n }\n if (stroke) {\n this.instructions.push(strokeInstruction);\n this.hitDetectionInstructions.push(strokeInstruction);\n }\n return offset;\n }\n\n /**\n * @param {import(\"../../geom/Circle.js\").default} circleGeometry Circle geometry.\n * @param {import(\"../../Feature.js\").default} feature Feature.\n */\n drawCircle(circleGeometry, feature) {\n const state = this.state;\n const fillStyle = state.fillStyle;\n const strokeStyle = state.strokeStyle;\n if (fillStyle === undefined && strokeStyle === undefined) {\n return;\n }\n this.setFillStrokeStyles_();\n this.beginGeometry(circleGeometry, feature);\n if (state.fillStyle !== undefined) {\n this.hitDetectionInstructions.push([\n CanvasInstruction.SET_FILL_STYLE,\n defaultFillStyle,\n ]);\n }\n if (state.strokeStyle !== undefined) {\n this.hitDetectionInstructions.push([\n CanvasInstruction.SET_STROKE_STYLE,\n state.strokeStyle,\n state.lineWidth,\n state.lineCap,\n state.lineJoin,\n state.miterLimit,\n state.lineDash,\n state.lineDashOffset,\n ]);\n }\n const flatCoordinates = circleGeometry.getFlatCoordinates();\n const stride = circleGeometry.getStride();\n const myBegin = this.coordinates.length;\n this.appendFlatCoordinates(\n flatCoordinates,\n 0,\n flatCoordinates.length,\n stride,\n false,\n false\n );\n const circleInstruction = [CanvasInstruction.CIRCLE, myBegin];\n this.instructions.push(beginPathInstruction, circleInstruction);\n this.hitDetectionInstructions.push(beginPathInstruction, circleInstruction);\n if (state.fillStyle !== undefined) {\n this.instructions.push(fillInstruction);\n this.hitDetectionInstructions.push(fillInstruction);\n }\n if (state.strokeStyle !== undefined) {\n this.instructions.push(strokeInstruction);\n this.hitDetectionInstructions.push(strokeInstruction);\n }\n this.endGeometry(feature);\n }\n\n /**\n * @param {import(\"../../geom/Polygon.js\").default|import(\"../Feature.js\").default} polygonGeometry Polygon geometry.\n * @param {import(\"../../Feature.js\").FeatureLike} feature Feature.\n */\n drawPolygon(polygonGeometry, feature) {\n const state = this.state;\n const fillStyle = state.fillStyle;\n const strokeStyle = state.strokeStyle;\n if (fillStyle === undefined && strokeStyle === undefined) {\n return;\n }\n this.setFillStrokeStyles_();\n this.beginGeometry(polygonGeometry, feature);\n if (state.fillStyle !== undefined) {\n this.hitDetectionInstructions.push([\n CanvasInstruction.SET_FILL_STYLE,\n defaultFillStyle,\n ]);\n }\n if (state.strokeStyle !== undefined) {\n this.hitDetectionInstructions.push([\n CanvasInstruction.SET_STROKE_STYLE,\n state.strokeStyle,\n state.lineWidth,\n state.lineCap,\n state.lineJoin,\n state.miterLimit,\n state.lineDash,\n state.lineDashOffset,\n ]);\n }\n const ends = polygonGeometry.getEnds();\n const flatCoordinates = polygonGeometry.getOrientedFlatCoordinates();\n const stride = polygonGeometry.getStride();\n this.drawFlatCoordinatess_(\n flatCoordinates,\n 0,\n /** @type {Array<number>} */ (ends),\n stride\n );\n this.endGeometry(feature);\n }\n\n /**\n * @param {import(\"../../geom/MultiPolygon.js\").default} multiPolygonGeometry MultiPolygon geometry.\n * @param {import(\"../../Feature.js\").FeatureLike} feature Feature.\n */\n drawMultiPolygon(multiPolygonGeometry, feature) {\n const state = this.state;\n const fillStyle = state.fillStyle;\n const strokeStyle = state.strokeStyle;\n if (fillStyle === undefined && strokeStyle === undefined) {\n return;\n }\n this.setFillStrokeStyles_();\n this.beginGeometry(multiPolygonGeometry, feature);\n if (state.fillStyle !== undefined) {\n this.hitDetectionInstructions.push([\n CanvasInstruction.SET_FILL_STYLE,\n defaultFillStyle,\n ]);\n }\n if (state.strokeStyle !== undefined) {\n this.hitDetectionInstructions.push([\n CanvasInstruction.SET_STROKE_STYLE,\n state.strokeStyle,\n state.lineWidth,\n state.lineCap,\n state.lineJoin,\n state.miterLimit,\n state.lineDash,\n state.lineDashOffset,\n ]);\n }\n const endss = multiPolygonGeometry.getEndss();\n const flatCoordinates = multiPolygonGeometry.getOrientedFlatCoordinates();\n const stride = multiPolygonGeometry.getStride();\n let offset = 0;\n for (let i = 0, ii = endss.length; i < ii; ++i) {\n offset = this.drawFlatCoordinatess_(\n flatCoordinates,\n offset,\n endss[i],\n stride\n );\n }\n this.endGeometry(feature);\n }\n\n /**\n * @return {import(\"./Builder.js\").SerializableInstructions} the serializable instructions.\n */\n finish() {\n this.reverseHitDetectionInstructions();\n this.state = null;\n // We want to preserve topology when drawing polygons. Polygons are\n // simplified using quantization and point elimination. However, we might\n // have received a mix of quantized and non-quantized geometries, so ensure\n // that all are quantized by quantizing all coordinates in the batch.\n const tolerance = this.tolerance;\n if (tolerance !== 0) {\n const coordinates = this.coordinates;\n for (let i = 0, ii = coordinates.length; i < ii; ++i) {\n coordinates[i] = snap(coordinates[i], tolerance);\n }\n }\n return super.finish();\n }\n\n /**\n * @private\n */\n setFillStrokeStyles_() {\n const state = this.state;\n const fillStyle = state.fillStyle;\n if (fillStyle !== undefined) {\n this.updateFillStyle(state, this.createFill);\n }\n if (state.strokeStyle !== undefined) {\n this.updateStrokeStyle(state, this.applyStroke);\n }\n }\n}\n\nexport default CanvasPolygonBuilder;\n","/**\n * @module ol/geom/flat/straightchunk\n */\n\n/**\n * @param {number} maxAngle Maximum acceptable angle delta between segments.\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @return {Array<number>} Start and end of the first suitable chunk of the\n * given `flatCoordinates`.\n */\nexport function matchingChunk(maxAngle, flatCoordinates, offset, end, stride) {\n let chunkStart = offset;\n let chunkEnd = offset;\n let chunkM = 0;\n let m = 0;\n let start = offset;\n let acos, i, m12, m23, x1, y1, x12, y12, x23, y23;\n for (i = offset; i < end; i += stride) {\n const x2 = flatCoordinates[i];\n const y2 = flatCoordinates[i + 1];\n if (x1 !== undefined) {\n x23 = x2 - x1;\n y23 = y2 - y1;\n m23 = Math.sqrt(x23 * x23 + y23 * y23);\n if (x12 !== undefined) {\n m += m12;\n acos = Math.acos((x12 * x23 + y12 * y23) / (m12 * m23));\n if (acos > maxAngle) {\n if (m > chunkM) {\n chunkM = m;\n chunkStart = start;\n chunkEnd = i;\n }\n m = 0;\n start = i - stride;\n }\n }\n m12 = m23;\n x12 = x23;\n y12 = y23;\n }\n x1 = x2;\n y1 = y2;\n }\n m += m23;\n return m > chunkM ? [start, i] : [chunkStart, chunkEnd];\n}\n","/**\n * @module ol/render/canvas/TextBuilder\n */\nimport CanvasBuilder from './Builder.js';\nimport CanvasInstruction from './Instruction.js';\nimport GeometryType from '../../geom/GeometryType.js';\nimport TextPlacement from '../../style/TextPlacement.js';\nimport {asColorLike} from '../../colorlike.js';\nimport {\n defaultFillStyle,\n defaultFont,\n defaultLineCap,\n defaultLineDash,\n defaultLineDashOffset,\n defaultLineJoin,\n defaultLineWidth,\n defaultMiterLimit,\n defaultPadding,\n defaultStrokeStyle,\n defaultTextAlign,\n defaultTextBaseline,\n registerFont,\n} from '../canvas.js';\nimport {getUid} from '../../util.js';\nimport {intersects} from '../../extent.js';\nimport {matchingChunk} from '../../geom/flat/straightchunk.js';\n/**\n * @const\n * @enum {number}\n */\nexport const TEXT_ALIGN = {\n 'left': 0,\n 'end': 0,\n 'center': 0.5,\n 'right': 1,\n 'start': 1,\n 'top': 0,\n 'middle': 0.5,\n 'hanging': 0.2,\n 'alphabetic': 0.8,\n 'ideographic': 0.8,\n 'bottom': 1,\n};\n\nclass CanvasTextBuilder extends CanvasBuilder {\n /**\n * @param {number} tolerance Tolerance.\n * @param {import(\"../../extent.js\").Extent} maxExtent Maximum extent.\n * @param {number} resolution Resolution.\n * @param {number} pixelRatio Pixel ratio.\n */\n constructor(tolerance, maxExtent, resolution, pixelRatio) {\n super(tolerance, maxExtent, resolution, pixelRatio);\n\n /**\n * @private\n * @type {import(\"../canvas.js\").DeclutterGroups}\n */\n this.declutterGroups_;\n\n /**\n * @private\n * @type {Array<HTMLCanvasElement>}\n */\n this.labels_ = null;\n\n /**\n * @private\n * @type {string}\n */\n this.text_ = '';\n\n /**\n * @private\n * @type {number}\n */\n this.textOffsetX_ = 0;\n\n /**\n * @private\n * @type {number}\n */\n this.textOffsetY_ = 0;\n\n /**\n * @private\n * @type {boolean|undefined}\n */\n this.textRotateWithView_ = undefined;\n\n /**\n * @private\n * @type {number}\n */\n this.textRotation_ = 0;\n\n /**\n * @private\n * @type {?import(\"../canvas.js\").FillState}\n */\n this.textFillState_ = null;\n\n /**\n * @type {!Object<string, import(\"../canvas.js\").FillState>}\n */\n this.fillStates = {};\n\n /**\n * @private\n * @type {?import(\"../canvas.js\").StrokeState}\n */\n this.textStrokeState_ = null;\n\n /**\n * @type {!Object<string, import(\"../canvas.js\").StrokeState>}\n */\n this.strokeStates = {};\n\n /**\n * @private\n * @type {import(\"../canvas.js\").TextState}\n */\n this.textState_ = /** @type {import(\"../canvas.js\").TextState} */ ({});\n\n /**\n * @type {!Object<string, import(\"../canvas.js\").TextState>}\n */\n this.textStates = {};\n\n /**\n * @private\n * @type {string}\n */\n this.textKey_ = '';\n\n /**\n * @private\n * @type {string}\n */\n this.fillKey_ = '';\n\n /**\n * @private\n * @type {string}\n */\n this.strokeKey_ = '';\n }\n\n /**\n * @return {import(\"./Builder.js\").SerializableInstructions} the serializable instructions.\n */\n finish() {\n const instructions = super.finish();\n instructions.textStates = this.textStates;\n instructions.fillStates = this.fillStates;\n instructions.strokeStates = this.strokeStates;\n return instructions;\n }\n\n /**\n * @param {import(\"../../geom/SimpleGeometry.js\").default|import(\"../Feature.js\").default} geometry Geometry.\n * @param {import(\"../../Feature.js\").FeatureLike} feature Feature.\n */\n drawText(geometry, feature) {\n const fillState = this.textFillState_;\n const strokeState = this.textStrokeState_;\n const textState = this.textState_;\n if (this.text_ === '' || !textState || (!fillState && !strokeState)) {\n return;\n }\n\n let begin = this.coordinates.length;\n\n const geometryType = geometry.getType();\n let flatCoordinates = null;\n let end = 2;\n let stride = geometry.getStride();\n let i, ii;\n\n if (textState.placement === TextPlacement.LINE) {\n if (!intersects(this.getBufferedMaxExtent(), geometry.getExtent())) {\n return;\n }\n let ends;\n flatCoordinates = geometry.getFlatCoordinates();\n if (geometryType == GeometryType.LINE_STRING) {\n ends = [flatCoordinates.length];\n } else if (geometryType == GeometryType.MULTI_LINE_STRING) {\n ends = /** @type {import(\"../../geom/MultiLineString.js\").default} */ (geometry).getEnds();\n } else if (geometryType == GeometryType.POLYGON) {\n ends = /** @type {import(\"../../geom/Polygon.js\").default} */ (geometry)\n .getEnds()\n .slice(0, 1);\n } else if (geometryType == GeometryType.MULTI_POLYGON) {\n const endss = /** @type {import(\"../../geom/MultiPolygon.js\").default} */ (geometry).getEndss();\n ends = [];\n for (i = 0, ii = endss.length; i < ii; ++i) {\n ends.push(endss[i][0]);\n }\n }\n this.beginGeometry(geometry, feature);\n const textAlign = textState.textAlign;\n let flatOffset = 0;\n let flatEnd;\n for (let o = 0, oo = ends.length; o < oo; ++o) {\n if (textAlign == undefined) {\n const range = matchingChunk(\n textState.maxAngle,\n flatCoordinates,\n flatOffset,\n ends[o],\n stride\n );\n flatOffset = range[0];\n flatEnd = range[1];\n } else {\n flatEnd = ends[o];\n }\n for (i = flatOffset; i < flatEnd; i += stride) {\n this.coordinates.push(flatCoordinates[i], flatCoordinates[i + 1]);\n }\n end = this.coordinates.length;\n flatOffset = ends[o];\n const declutterGroup = this.declutterGroups_\n ? o === 0\n ? this.declutterGroups_[0]\n : [].concat(this.declutterGroups_[0])\n : null;\n this.drawChars_(begin, end, declutterGroup);\n begin = end;\n }\n this.endGeometry(feature);\n } else {\n let geometryWidths = null;\n if (!textState.overflow) {\n geometryWidths = [];\n }\n switch (geometryType) {\n case GeometryType.POINT:\n case GeometryType.MULTI_POINT:\n flatCoordinates = /** @type {import(\"../../geom/MultiPoint.js\").default} */ (geometry).getFlatCoordinates();\n end = flatCoordinates.length;\n break;\n case GeometryType.LINE_STRING:\n flatCoordinates = /** @type {import(\"../../geom/LineString.js\").default} */ (geometry).getFlatMidpoint();\n break;\n case GeometryType.CIRCLE:\n flatCoordinates = /** @type {import(\"../../geom/Circle.js\").default} */ (geometry).getCenter();\n break;\n case GeometryType.MULTI_LINE_STRING:\n flatCoordinates = /** @type {import(\"../../geom/MultiLineString.js\").default} */ (geometry).getFlatMidpoints();\n stride = 2;\n end = flatCoordinates.length;\n break;\n case GeometryType.POLYGON:\n flatCoordinates = /** @type {import(\"../../geom/Polygon.js\").default} */ (geometry).getFlatInteriorPoint();\n if (!textState.overflow) {\n geometryWidths.push(flatCoordinates[2] / this.resolution);\n }\n stride = 3;\n break;\n case GeometryType.MULTI_POLYGON:\n const interiorPoints = /** @type {import(\"../../geom/MultiPolygon.js\").default} */ (geometry).getFlatInteriorPoints();\n flatCoordinates = [];\n for (i = 0, ii = interiorPoints.length; i < ii; i += 3) {\n if (!textState.overflow) {\n geometryWidths.push(interiorPoints[i + 2] / this.resolution);\n }\n flatCoordinates.push(interiorPoints[i], interiorPoints[i + 1]);\n }\n stride = 2;\n end = flatCoordinates.length;\n if (end == 0) {\n return;\n }\n break;\n default:\n }\n end = this.appendFlatCoordinates(\n flatCoordinates,\n 0,\n end,\n stride,\n false,\n false\n );\n\n this.saveTextStates_();\n\n if (textState.backgroundFill || textState.backgroundStroke) {\n this.setFillStrokeStyle(\n textState.backgroundFill,\n textState.backgroundStroke\n );\n if (textState.backgroundFill) {\n this.updateFillStyle(this.state, this.createFill);\n this.hitDetectionInstructions.push(this.createFill(this.state));\n }\n if (textState.backgroundStroke) {\n this.updateStrokeStyle(this.state, this.applyStroke);\n this.hitDetectionInstructions.push(this.createStroke(this.state));\n }\n }\n\n this.beginGeometry(geometry, feature);\n\n // adjust padding for negative scale\n let padding = textState.padding;\n if (\n padding != defaultPadding &&\n (textState.scale[0] < 0 || textState.scale[1] < 0)\n ) {\n let p0 = textState.padding[0];\n let p1 = textState.padding[1];\n let p2 = textState.padding[2];\n let p3 = textState.padding[3];\n if (textState.scale[0] < 0) {\n p1 = -p1;\n p3 = -p3;\n }\n if (textState.scale[1] < 0) {\n p0 = -p0;\n p2 = -p2;\n }\n padding = [p0, p1, p2, p3];\n }\n\n // The image is unknown at this stage so we pass null; it will be computed at render time.\n // For clarity, we pass NaN for offsetX, offsetY, width and height, which will be computed at\n // render time.\n const pixelRatio = this.pixelRatio;\n this.instructions.push([\n CanvasInstruction.DRAW_IMAGE,\n begin,\n end,\n null,\n NaN,\n NaN,\n this.declutterGroups_,\n NaN,\n 1,\n 0,\n 0,\n this.textRotateWithView_,\n this.textRotation_,\n [1, 1],\n NaN,\n padding == defaultPadding\n ? defaultPadding\n : padding.map(function (p) {\n return p * pixelRatio;\n }),\n !!textState.backgroundFill,\n !!textState.backgroundStroke,\n this.text_,\n this.textKey_,\n this.strokeKey_,\n this.fillKey_,\n this.textOffsetX_,\n this.textOffsetY_,\n geometryWidths,\n ]);\n const scale = 1 / pixelRatio;\n this.hitDetectionInstructions.push([\n CanvasInstruction.DRAW_IMAGE,\n begin,\n end,\n null,\n NaN,\n NaN,\n this.declutterGroups_,\n NaN,\n 1,\n 0,\n 0,\n this.textRotateWithView_,\n this.textRotation_,\n [scale, scale],\n NaN,\n padding,\n !!textState.backgroundFill,\n !!textState.backgroundStroke,\n this.text_,\n this.textKey_,\n this.strokeKey_,\n this.fillKey_,\n this.textOffsetX_,\n this.textOffsetY_,\n geometryWidths,\n ]);\n\n this.endGeometry(feature);\n }\n }\n\n /**\n * @private\n */\n saveTextStates_() {\n const strokeState = this.textStrokeState_;\n const textState = this.textState_;\n const fillState = this.textFillState_;\n\n const strokeKey = this.strokeKey_;\n if (strokeState) {\n if (!(strokeKey in this.strokeStates)) {\n this.strokeStates[strokeKey] = {\n strokeStyle: strokeState.strokeStyle,\n lineCap: strokeState.lineCap,\n lineDashOffset: strokeState.lineDashOffset,\n lineWidth: strokeState.lineWidth,\n lineJoin: strokeState.lineJoin,\n miterLimit: strokeState.miterLimit,\n lineDash: strokeState.lineDash,\n };\n }\n }\n const textKey = this.textKey_;\n if (!(textKey in this.textStates)) {\n this.textStates[textKey] = {\n font: textState.font,\n textAlign: textState.textAlign || defaultTextAlign,\n textBaseline: textState.textBaseline || defaultTextBaseline,\n scale: textState.scale,\n };\n }\n const fillKey = this.fillKey_;\n if (fillState) {\n if (!(fillKey in this.fillStates)) {\n this.fillStates[fillKey] = {\n fillStyle: fillState.fillStyle,\n };\n }\n }\n }\n\n /**\n * @private\n * @param {number} begin Begin.\n * @param {number} end End.\n * @param {import(\"../canvas.js\").DeclutterGroup} declutterGroup Declutter group.\n */\n drawChars_(begin, end, declutterGroup) {\n const strokeState = this.textStrokeState_;\n const textState = this.textState_;\n\n const strokeKey = this.strokeKey_;\n const textKey = this.textKey_;\n const fillKey = this.fillKey_;\n this.saveTextStates_();\n\n const pixelRatio = this.pixelRatio;\n const baseline = TEXT_ALIGN[textState.textBaseline];\n\n const offsetY = this.textOffsetY_ * pixelRatio;\n const text = this.text_;\n const strokeWidth = strokeState\n ? (strokeState.lineWidth * Math.abs(textState.scale[0])) / 2\n : 0;\n\n this.instructions.push([\n CanvasInstruction.DRAW_CHARS,\n begin,\n end,\n baseline,\n declutterGroup,\n textState.overflow,\n fillKey,\n textState.maxAngle,\n pixelRatio,\n offsetY,\n strokeKey,\n strokeWidth * pixelRatio,\n text,\n textKey,\n 1,\n ]);\n this.hitDetectionInstructions.push([\n CanvasInstruction.DRAW_CHARS,\n begin,\n end,\n baseline,\n declutterGroup,\n textState.overflow,\n fillKey,\n textState.maxAngle,\n 1,\n offsetY,\n strokeKey,\n strokeWidth,\n text,\n textKey,\n 1 / pixelRatio,\n ]);\n }\n\n /**\n * @param {import(\"../../style/Text.js\").default} textStyle Text style.\n * @param {import(\"../canvas.js\").DeclutterGroups} declutterGroups Declutter.\n */\n setTextStyle(textStyle, declutterGroups) {\n let textState, fillState, strokeState;\n if (!textStyle) {\n this.text_ = '';\n } else {\n this.declutterGroups_ = declutterGroups;\n\n const textFillStyle = textStyle.getFill();\n if (!textFillStyle) {\n fillState = null;\n this.textFillState_ = fillState;\n } else {\n fillState = this.textFillState_;\n if (!fillState) {\n fillState = /** @type {import(\"../canvas.js\").FillState} */ ({});\n this.textFillState_ = fillState;\n }\n fillState.fillStyle = asColorLike(\n textFillStyle.getColor() || defaultFillStyle\n );\n }\n\n const textStrokeStyle = textStyle.getStroke();\n if (!textStrokeStyle) {\n strokeState = null;\n this.textStrokeState_ = strokeState;\n } else {\n strokeState = this.textStrokeState_;\n if (!strokeState) {\n strokeState = /** @type {import(\"../canvas.js\").StrokeState} */ ({});\n this.textStrokeState_ = strokeState;\n }\n const lineDash = textStrokeStyle.getLineDash();\n const lineDashOffset = textStrokeStyle.getLineDashOffset();\n const lineWidth = textStrokeStyle.getWidth();\n const miterLimit = textStrokeStyle.getMiterLimit();\n strokeState.lineCap = textStrokeStyle.getLineCap() || defaultLineCap;\n strokeState.lineDash = lineDash ? lineDash.slice() : defaultLineDash;\n strokeState.lineDashOffset =\n lineDashOffset === undefined ? defaultLineDashOffset : lineDashOffset;\n strokeState.lineJoin = textStrokeStyle.getLineJoin() || defaultLineJoin;\n strokeState.lineWidth =\n lineWidth === undefined ? defaultLineWidth : lineWidth;\n strokeState.miterLimit =\n miterLimit === undefined ? defaultMiterLimit : miterLimit;\n strokeState.strokeStyle = asColorLike(\n textStrokeStyle.getColor() || defaultStrokeStyle\n );\n }\n\n textState = this.textState_;\n const font = textStyle.getFont() || defaultFont;\n registerFont(font);\n const textScale = textStyle.getScaleArray();\n textState.overflow = textStyle.getOverflow();\n textState.font = font;\n textState.maxAngle = textStyle.getMaxAngle();\n textState.placement = textStyle.getPlacement();\n textState.textAlign = textStyle.getTextAlign();\n textState.textBaseline =\n textStyle.getTextBaseline() || defaultTextBaseline;\n textState.backgroundFill = textStyle.getBackgroundFill();\n textState.backgroundStroke = textStyle.getBackgroundStroke();\n textState.padding = textStyle.getPadding() || defaultPadding;\n textState.scale = textScale === undefined ? [1, 1] : textScale;\n\n const textOffsetX = textStyle.getOffsetX();\n const textOffsetY = textStyle.getOffsetY();\n const textRotateWithView = textStyle.getRotateWithView();\n const textRotation = textStyle.getRotation();\n this.text_ = textStyle.getText() || '';\n this.textOffsetX_ = textOffsetX === undefined ? 0 : textOffsetX;\n this.textOffsetY_ = textOffsetY === undefined ? 0 : textOffsetY;\n this.textRotateWithView_ =\n textRotateWithView === undefined ? false : textRotateWithView;\n this.textRotation_ = textRotation === undefined ? 0 : textRotation;\n\n this.strokeKey_ = strokeState\n ? (typeof strokeState.strokeStyle == 'string'\n ? strokeState.strokeStyle\n : getUid(strokeState.strokeStyle)) +\n strokeState.lineCap +\n strokeState.lineDashOffset +\n '|' +\n strokeState.lineWidth +\n strokeState.lineJoin +\n strokeState.miterLimit +\n '[' +\n strokeState.lineDash.join() +\n ']'\n : '';\n this.textKey_ =\n textState.font +\n textState.scale +\n (textState.textAlign || '?') +\n (textState.textBaseline || '?');\n this.fillKey_ = fillState\n ? typeof fillState.fillStyle == 'string'\n ? fillState.fillStyle\n : '|' + getUid(fillState.fillStyle)\n : '';\n }\n }\n}\n\nexport default CanvasTextBuilder;\n","/**\n * @module ol/render/canvas/BuilderGroup\n */\n\nimport Builder from './Builder.js';\nimport ImageBuilder from './ImageBuilder.js';\nimport LineStringBuilder from './LineStringBuilder.js';\nimport PolygonBuilder from './PolygonBuilder.js';\nimport TextBuilder from './TextBuilder.js';\n\n/**\n * @type {Object<import(\"./BuilderType\").default, typeof Builder>}\n */\nconst BATCH_CONSTRUCTORS = {\n 'Circle': PolygonBuilder,\n 'Default': Builder,\n 'Image': ImageBuilder,\n 'LineString': LineStringBuilder,\n 'Polygon': PolygonBuilder,\n 'Text': TextBuilder,\n};\n\nclass BuilderGroup {\n /**\n * @param {number} tolerance Tolerance.\n * @param {import(\"../../extent.js\").Extent} maxExtent Max extent.\n * @param {number} resolution Resolution.\n * @param {number} pixelRatio Pixel ratio.\n * @param {boolean} declutter Decluttering enabled.\n */\n constructor(tolerance, maxExtent, resolution, pixelRatio, declutter) {\n /**\n * @type {boolean}\n * @private\n */\n this.declutter_ = declutter;\n\n /**\n * @type {import(\"../canvas.js\").DeclutterGroups}\n * @private\n */\n this.declutterGroups_ = null;\n\n /**\n * @private\n * @type {number}\n */\n this.tolerance_ = tolerance;\n\n /**\n * @private\n * @type {import(\"../../extent.js\").Extent}\n */\n this.maxExtent_ = maxExtent;\n\n /**\n * @private\n * @type {number}\n */\n this.pixelRatio_ = pixelRatio;\n\n /**\n * @private\n * @type {number}\n */\n this.resolution_ = resolution;\n\n /**\n * @private\n * @type {!Object<string, !Object<import(\"./BuilderType\").default, Builder>>}\n */\n this.buildersByZIndex_ = {};\n }\n\n /**\n * @param {boolean} group Group with previous builder.\n * @return {import(\"../canvas\").DeclutterGroups} The resulting instruction groups.\n */\n addDeclutter(group) {\n /** @type {Array<*>} */\n let declutter = null;\n if (this.declutter_) {\n if (group) {\n declutter = this.declutterGroups_;\n /** @type {number} */ (declutter[0][0])++;\n } else {\n declutter = [[1]];\n this.declutterGroups_ = declutter;\n }\n }\n return declutter;\n }\n\n /**\n * @return {!Object<string, !Object<import(\"./BuilderType\").default, import(\"./Builder.js\").SerializableInstructions>>} The serializable instructions\n */\n finish() {\n const builderInstructions = {};\n for (const zKey in this.buildersByZIndex_) {\n builderInstructions[zKey] = builderInstructions[zKey] || {};\n const builders = this.buildersByZIndex_[zKey];\n for (const builderKey in builders) {\n const builderInstruction = builders[builderKey].finish();\n builderInstructions[zKey][builderKey] = builderInstruction;\n }\n }\n return builderInstructions;\n }\n\n /**\n * @param {number|undefined} zIndex Z index.\n * @param {import(\"./BuilderType.js\").default} builderType Replay type.\n * @return {import(\"../VectorContext.js\").default} Replay.\n */\n getBuilder(zIndex, builderType) {\n const zIndexKey = zIndex !== undefined ? zIndex.toString() : '0';\n let replays = this.buildersByZIndex_[zIndexKey];\n if (replays === undefined) {\n replays = {};\n this.buildersByZIndex_[zIndexKey] = replays;\n }\n let replay = replays[builderType];\n if (replay === undefined) {\n const Constructor = BATCH_CONSTRUCTORS[builderType];\n replay = new Constructor(\n this.tolerance_,\n this.maxExtent_,\n this.resolution_,\n this.pixelRatio_\n );\n replays[builderType] = replay;\n }\n return replay;\n }\n}\n\nexport default BuilderGroup;\n","/**\n * @module ol/renderer/Layer\n */\nimport EventType from '../events/EventType.js';\nimport ImageState from '../ImageState.js';\nimport Observable from '../Observable.js';\nimport SourceState from '../source/State.js';\nimport {abstract} from '../util.js';\n\n/**\n * @template {import(\"../layer/Layer.js\").default} LayerType\n */\nclass LayerRenderer extends Observable {\n /**\n * @param {LayerType} layer Layer.\n */\n constructor(layer) {\n super();\n\n /** @private */\n this.boundHandleImageChange_ = this.handleImageChange_.bind(this);\n\n /**\n * @protected\n * @type {LayerType}\n */\n this.layer_ = layer;\n }\n\n /**\n * Asynchronous layer level hit detection.\n * @param {import(\"../pixel.js\").Pixel} pixel Pixel.\n * @return {Promise<Array<import(\"../Feature\").default>>} Promise that resolves with\n * an array of features.\n */\n getFeatures(pixel) {\n return abstract();\n }\n\n /**\n * Determine whether render should be called.\n * @abstract\n * @param {import(\"../PluggableMap.js\").FrameState} frameState Frame state.\n * @return {boolean} Layer is ready to be rendered.\n */\n prepareFrame(frameState) {\n return abstract();\n }\n\n /**\n * Render the layer.\n * @abstract\n * @param {import(\"../PluggableMap.js\").FrameState} frameState Frame state.\n * @param {HTMLElement} target Target that may be used to render content to.\n * @return {HTMLElement} The rendered element.\n */\n renderFrame(frameState, target) {\n return abstract();\n }\n\n /**\n * @param {Object<number, Object<string, import(\"../Tile.js\").default>>} tiles Lookup of loaded tiles by zoom level.\n * @param {number} zoom Zoom level.\n * @param {import(\"../Tile.js\").default} tile Tile.\n * @return {boolean|void} If `false`, the tile will not be considered loaded.\n */\n loadedTileCallback(tiles, zoom, tile) {\n if (!tiles[zoom]) {\n tiles[zoom] = {};\n }\n tiles[zoom][tile.tileCoord.toString()] = tile;\n return undefined;\n }\n\n /**\n * Create a function that adds loaded tiles to the tile lookup.\n * @param {import(\"../source/Tile.js\").default} source Tile source.\n * @param {import(\"../proj/Projection.js\").default} projection Projection of the tiles.\n * @param {Object<number, Object<string, import(\"../Tile.js\").default>>} tiles Lookup of loaded tiles by zoom level.\n * @return {function(number, import(\"../TileRange.js\").default):boolean} A function that can be\n * called with a zoom level and a tile range to add loaded tiles to the lookup.\n * @protected\n */\n createLoadedTileFinder(source, projection, tiles) {\n return (\n /**\n * @param {number} zoom Zoom level.\n * @param {import(\"../TileRange.js\").default} tileRange Tile range.\n * @return {boolean} The tile range is fully loaded.\n * @this {LayerRenderer}\n */\n function (zoom, tileRange) {\n const callback = this.loadedTileCallback.bind(this, tiles, zoom);\n return source.forEachLoadedTile(projection, zoom, tileRange, callback);\n }.bind(this)\n );\n }\n /**\n * @abstract\n * @param {import(\"../coordinate.js\").Coordinate} coordinate Coordinate.\n * @param {import(\"../PluggableMap.js\").FrameState} frameState Frame state.\n * @param {number} hitTolerance Hit tolerance in pixels.\n * @param {function(import(\"../Feature.js\").FeatureLike, import(\"../layer/Layer.js\").default): T} callback Feature callback.\n * @param {Array<import(\"../Feature.js\").FeatureLike>} declutteredFeatures Decluttered features.\n * @return {T|void} Callback result.\n * @template T\n */\n forEachFeatureAtCoordinate(\n coordinate,\n frameState,\n hitTolerance,\n callback,\n declutteredFeatures\n ) {}\n\n /**\n * @abstract\n * @param {import(\"../pixel.js\").Pixel} pixel Pixel.\n * @param {import(\"../PluggableMap.js\").FrameState} frameState FrameState.\n * @param {number} hitTolerance Hit tolerance in pixels.\n * @return {Uint8ClampedArray|Uint8Array} The result. If there is no data at the pixel\n * location, null will be returned. If there is data, but pixel values cannot be\n * returned, and empty array will be returned.\n */\n getDataAtPixel(pixel, frameState, hitTolerance) {\n return abstract();\n }\n\n /**\n * @return {LayerType} Layer.\n */\n getLayer() {\n return this.layer_;\n }\n\n /**\n * Perform action necessary to get the layer rendered after new fonts have loaded\n * @abstract\n */\n handleFontsChanged() {}\n\n /**\n * Handle changes in image state.\n * @param {import(\"../events/Event.js\").default} event Image change event.\n * @private\n */\n handleImageChange_(event) {\n const image = /** @type {import(\"../Image.js\").default} */ (event.target);\n if (image.getState() === ImageState.LOADED) {\n this.renderIfReadyAndVisible();\n }\n }\n\n /**\n * Load the image if not already loaded, and register the image change\n * listener if needed.\n * @param {import(\"../ImageBase.js\").default} image Image.\n * @return {boolean} `true` if the image is already loaded, `false` otherwise.\n * @protected\n */\n loadImage(image) {\n let imageState = image.getState();\n if (imageState != ImageState.LOADED && imageState != ImageState.ERROR) {\n image.addEventListener(EventType.CHANGE, this.boundHandleImageChange_);\n }\n if (imageState == ImageState.IDLE) {\n image.load();\n imageState = image.getState();\n }\n return imageState == ImageState.LOADED;\n }\n\n /**\n * @protected\n */\n renderIfReadyAndVisible() {\n const layer = this.getLayer();\n if (layer.getVisible() && layer.getSourceState() == SourceState.READY) {\n layer.changed();\n }\n }\n}\n\nexport default LayerRenderer;\n","/**\n * @module ol/render/Event\n */\n\nimport Event from '../events/Event.js';\n\nclass RenderEvent extends Event {\n /**\n * @param {import(\"./EventType.js\").default} type Type.\n * @param {import(\"../transform.js\").Transform=} opt_inversePixelTransform Transform for\n * CSS pixels to rendered pixels.\n * @param {import(\"../PluggableMap.js\").FrameState=} opt_frameState Frame state.\n * @param {?CanvasRenderingContext2D=} opt_context Context.\n */\n constructor(type, opt_inversePixelTransform, opt_frameState, opt_context) {\n super(type);\n\n /**\n * Transform from CSS pixels (relative to the top-left corner of the map viewport)\n * to rendered pixels on this event's `context`.\n * @type {import(\"../transform.js\").Transform|undefined}\n * @api\n */\n this.inversePixelTransform = opt_inversePixelTransform;\n\n /**\n * An object representing the current render frame state.\n * @type {import(\"../PluggableMap.js\").FrameState|undefined}\n * @api\n */\n this.frameState = opt_frameState;\n\n /**\n * Canvas context. Not available when the event is dispatched by the map. Only available\n * when a Canvas renderer is used, null otherwise.\n * @type {CanvasRenderingContext2D|null|undefined}\n * @api\n */\n this.context = opt_context;\n }\n}\n\nexport default RenderEvent;\n","/**\n * @module ol/renderer/canvas/Layer\n */\nimport LayerRenderer from '../Layer.js';\nimport RenderEvent from '../../render/Event.js';\nimport RenderEventType from '../../render/EventType.js';\nimport {\n apply as applyTransform,\n compose as composeTransform,\n create as createTransform,\n} from '../../transform.js';\nimport {createCanvasContext2D} from '../../dom.js';\nimport {\n getBottomLeft,\n getBottomRight,\n getTopLeft,\n getTopRight,\n} from '../../extent.js';\nimport {rotateAtOffset} from '../../render/canvas.js';\n\n/**\n * @abstract\n * @template {import(\"../../layer/Layer.js\").default} LayerType\n */\nclass CanvasLayerRenderer extends LayerRenderer {\n /**\n * @param {LayerType} layer Layer.\n */\n constructor(layer) {\n super(layer);\n\n /**\n * @protected\n * @type {HTMLElement}\n */\n this.container = null;\n\n /**\n * @protected\n * @type {number}\n */\n this.renderedResolution;\n\n /**\n * A temporary transform. The values in this transform should only be used in a\n * function that sets the values.\n * @protected\n * @type {import(\"../../transform.js\").Transform}\n */\n this.tempTransform = createTransform();\n\n /**\n * The transform for rendered pixels to viewport CSS pixels. This transform must\n * be set when rendering a frame and may be used by other functions after rendering.\n * @protected\n * @type {import(\"../../transform.js\").Transform}\n */\n this.pixelTransform = createTransform();\n\n /**\n * The transform for viewport CSS pixels to rendered pixels. This transform must\n * be set when rendering a frame and may be used by other functions after rendering.\n * @protected\n * @type {import(\"../../transform.js\").Transform}\n */\n this.inversePixelTransform = createTransform();\n\n /**\n * @type {CanvasRenderingContext2D}\n */\n this.context = null;\n\n /**\n * @type {boolean}\n */\n this.containerReused = false;\n }\n\n /**\n * Get a rendering container from an existing target, if compatible.\n * @param {HTMLElement} target Potential render target.\n * @param {string} transform CSS Transform.\n * @param {number} opacity Opacity.\n */\n useContainer(target, transform, opacity) {\n const layerClassName = this.getLayer().getClassName();\n let container, context;\n if (\n target &&\n target.style.opacity === '' &&\n target.className === layerClassName\n ) {\n const canvas = target.firstElementChild;\n if (canvas instanceof HTMLCanvasElement) {\n context = canvas.getContext('2d');\n }\n }\n if (\n context &&\n (context.canvas.width === 0 ||\n context.canvas.style.transform === transform)\n ) {\n // Container of the previous layer renderer can be used.\n this.container = target;\n this.context = context;\n this.containerReused = true;\n } else if (this.containerReused) {\n // Previously reused container cannot be used any more.\n this.container = null;\n this.context = null;\n this.containerReused = false;\n }\n if (!this.container) {\n container = document.createElement('div');\n container.className = layerClassName;\n let style = container.style;\n style.position = 'absolute';\n style.width = '100%';\n style.height = '100%';\n context = createCanvasContext2D();\n const canvas = context.canvas;\n container.appendChild(canvas);\n style = canvas.style;\n style.position = 'absolute';\n style.left = '0';\n style.transformOrigin = 'top left';\n this.container = container;\n this.context = context;\n }\n }\n\n /**\n * @param {CanvasRenderingContext2D} context Context.\n * @param {import(\"../../PluggableMap.js\").FrameState} frameState Frame state.\n * @param {import(\"../../extent.js\").Extent} extent Clip extent.\n * @protected\n */\n clip(context, frameState, extent) {\n const pixelRatio = frameState.pixelRatio;\n const halfWidth = (frameState.size[0] * pixelRatio) / 2;\n const halfHeight = (frameState.size[1] * pixelRatio) / 2;\n const rotation = frameState.viewState.rotation;\n const topLeft = getTopLeft(extent);\n const topRight = getTopRight(extent);\n const bottomRight = getBottomRight(extent);\n const bottomLeft = getBottomLeft(extent);\n\n applyTransform(frameState.coordinateToPixelTransform, topLeft);\n applyTransform(frameState.coordinateToPixelTransform, topRight);\n applyTransform(frameState.coordinateToPixelTransform, bottomRight);\n applyTransform(frameState.coordinateToPixelTransform, bottomLeft);\n\n context.save();\n rotateAtOffset(context, -rotation, halfWidth, halfHeight);\n context.beginPath();\n context.moveTo(topLeft[0] * pixelRatio, topLeft[1] * pixelRatio);\n context.lineTo(topRight[0] * pixelRatio, topRight[1] * pixelRatio);\n context.lineTo(bottomRight[0] * pixelRatio, bottomRight[1] * pixelRatio);\n context.lineTo(bottomLeft[0] * pixelRatio, bottomLeft[1] * pixelRatio);\n context.clip();\n rotateAtOffset(context, rotation, halfWidth, halfHeight);\n }\n\n /**\n * @param {CanvasRenderingContext2D} context Context.\n * @param {import(\"../../PluggableMap.js\").FrameState} frameState Frame state.\n * @param {import(\"../../extent.js\").Extent} extent Clip extent.\n * @protected\n */\n clipUnrotated(context, frameState, extent) {\n const topLeft = getTopLeft(extent);\n const topRight = getTopRight(extent);\n const bottomRight = getBottomRight(extent);\n const bottomLeft = getBottomLeft(extent);\n\n applyTransform(frameState.coordinateToPixelTransform, topLeft);\n applyTransform(frameState.coordinateToPixelTransform, topRight);\n applyTransform(frameState.coordinateToPixelTransform, bottomRight);\n applyTransform(frameState.coordinateToPixelTransform, bottomLeft);\n\n const inverted = this.inversePixelTransform;\n applyTransform(inverted, topLeft);\n applyTransform(inverted, topRight);\n applyTransform(inverted, bottomRight);\n applyTransform(inverted, bottomLeft);\n\n context.save();\n context.beginPath();\n context.moveTo(Math.round(topLeft[0]), Math.round(topLeft[1]));\n context.lineTo(Math.round(topRight[0]), Math.round(topRight[1]));\n context.lineTo(Math.round(bottomRight[0]), Math.round(bottomRight[1]));\n context.lineTo(Math.round(bottomLeft[0]), Math.round(bottomLeft[1]));\n context.clip();\n }\n\n /**\n * @param {import(\"../../render/EventType.js\").default} type Event type.\n * @param {CanvasRenderingContext2D} context Context.\n * @param {import(\"../../PluggableMap.js\").FrameState} frameState Frame state.\n * @private\n */\n dispatchRenderEvent_(type, context, frameState) {\n const layer = this.getLayer();\n if (layer.hasListener(type)) {\n const event = new RenderEvent(\n type,\n this.inversePixelTransform,\n frameState,\n context\n );\n layer.dispatchEvent(event);\n }\n }\n\n /**\n * @param {CanvasRenderingContext2D} context Context.\n * @param {import(\"../../PluggableMap.js\").FrameState} frameState Frame state.\n * @protected\n */\n preRender(context, frameState) {\n this.dispatchRenderEvent_(RenderEventType.PRERENDER, context, frameState);\n }\n\n /**\n * @param {CanvasRenderingContext2D} context Context.\n * @param {import(\"../../PluggableMap.js\").FrameState} frameState Frame state.\n * @protected\n */\n postRender(context, frameState) {\n this.dispatchRenderEvent_(RenderEventType.POSTRENDER, context, frameState);\n }\n\n /**\n * Creates a transform for rendering to an element that will be rotated after rendering.\n * @param {import(\"../../coordinate.js\").Coordinate} center Center.\n * @param {number} resolution Resolution.\n * @param {number} rotation Rotation.\n * @param {number} pixelRatio Pixel ratio.\n * @param {number} width Width of the rendered element (in pixels).\n * @param {number} height Height of the rendered element (in pixels).\n * @param {number} offsetX Offset on the x-axis in view coordinates.\n * @protected\n * @return {!import(\"../../transform.js\").Transform} Transform.\n */\n getRenderTransform(\n center,\n resolution,\n rotation,\n pixelRatio,\n width,\n height,\n offsetX\n ) {\n const dx1 = width / 2;\n const dy1 = height / 2;\n const sx = pixelRatio / resolution;\n const sy = -sx;\n const dx2 = -center[0] + offsetX;\n const dy2 = -center[1];\n return composeTransform(\n this.tempTransform,\n dx1,\n dy1,\n sx,\n sy,\n -rotation,\n dx2,\n dy2\n );\n }\n\n /**\n * @param {import(\"../../pixel.js\").Pixel} pixel Pixel.\n * @param {import(\"../../PluggableMap.js\").FrameState} frameState FrameState.\n * @param {number} hitTolerance Hit tolerance in pixels.\n * @return {Uint8ClampedArray|Uint8Array} The result. If there is no data at the pixel\n * location, null will be returned. If there is data, but pixel values cannot be\n * returned, and empty array will be returned.\n */\n getDataAtPixel(pixel, frameState, hitTolerance) {\n const renderPixel = applyTransform(\n this.inversePixelTransform,\n pixel.slice()\n );\n const context = this.context;\n\n let data;\n try {\n const x = Math.round(renderPixel[0]);\n const y = Math.round(renderPixel[1]);\n const newCanvas = document.createElement('canvas');\n const newContext = newCanvas.getContext('2d');\n newCanvas.width = 1;\n newCanvas.height = 1;\n newContext.clearRect(0, 0, 1, 1);\n newContext.drawImage(context.canvas, x, y, 1, 1, 0, 0, 1, 1);\n data = newContext.getImageData(0, 0, 1, 1).data;\n } catch (err) {\n if (err.name === 'SecurityError') {\n // tainted canvas, we assume there is data at the given pixel (although there might not be)\n return new Uint8Array();\n }\n return data;\n }\n\n if (data[3] === 0) {\n return null;\n }\n return data;\n }\n}\n\nexport default CanvasLayerRenderer;\n","/**\n * @module ol/render/canvas/BuilderType\n */\n\n/**\n * @enum {string}\n */\nexport default {\n CIRCLE: 'Circle',\n DEFAULT: 'Default',\n IMAGE: 'Image',\n LINE_STRING: 'LineString',\n POLYGON: 'Polygon',\n TEXT: 'Text',\n};\n","(function (global, factory) {\ntypeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :\ntypeof define === 'function' && define.amd ? define(factory) :\n(global = global || self, global.RBush = factory());\n}(this, function () { 'use strict';\n\nfunction quickselect(arr, k, left, right, compare) {\n quickselectStep(arr, k, left || 0, right || (arr.length - 1), compare || defaultCompare);\n}\n\nfunction quickselectStep(arr, k, left, right, compare) {\n\n while (right > left) {\n if (right - left > 600) {\n var n = right - left + 1;\n var m = k - left + 1;\n var z = Math.log(n);\n var s = 0.5 * Math.exp(2 * z / 3);\n var sd = 0.5 * Math.sqrt(z * s * (n - s) / n) * (m - n / 2 < 0 ? -1 : 1);\n var newLeft = Math.max(left, Math.floor(k - m * s / n + sd));\n var newRight = Math.min(right, Math.floor(k + (n - m) * s / n + sd));\n quickselectStep(arr, k, newLeft, newRight, compare);\n }\n\n var t = arr[k];\n var i = left;\n var j = right;\n\n swap(arr, left, k);\n if (compare(arr[right], t) > 0) { swap(arr, left, right); }\n\n while (i < j) {\n swap(arr, i, j);\n i++;\n j--;\n while (compare(arr[i], t) < 0) { i++; }\n while (compare(arr[j], t) > 0) { j--; }\n }\n\n if (compare(arr[left], t) === 0) { swap(arr, left, j); }\n else {\n j++;\n swap(arr, j, right);\n }\n\n if (j <= k) { left = j + 1; }\n if (k <= j) { right = j - 1; }\n }\n}\n\nfunction swap(arr, i, j) {\n var tmp = arr[i];\n arr[i] = arr[j];\n arr[j] = tmp;\n}\n\nfunction defaultCompare(a, b) {\n return a < b ? -1 : a > b ? 1 : 0;\n}\n\nvar RBush = function RBush(maxEntries) {\n if ( maxEntries === void 0 ) maxEntries = 9;\n\n // max entries in a node is 9 by default; min node fill is 40% for best performance\n this._maxEntries = Math.max(4, maxEntries);\n this._minEntries = Math.max(2, Math.ceil(this._maxEntries * 0.4));\n this.clear();\n};\n\nRBush.prototype.all = function all () {\n return this._all(this.data, []);\n};\n\nRBush.prototype.search = function search (bbox) {\n var node = this.data;\n var result = [];\n\n if (!intersects(bbox, node)) { return result; }\n\n var toBBox = this.toBBox;\n var nodesToSearch = [];\n\n while (node) {\n for (var i = 0; i < node.children.length; i++) {\n var child = node.children[i];\n var childBBox = node.leaf ? toBBox(child) : child;\n\n if (intersects(bbox, childBBox)) {\n if (node.leaf) { result.push(child); }\n else if (contains(bbox, childBBox)) { this._all(child, result); }\n else { nodesToSearch.push(child); }\n }\n }\n node = nodesToSearch.pop();\n }\n\n return result;\n};\n\nRBush.prototype.collides = function collides (bbox) {\n var node = this.data;\n\n if (!intersects(bbox, node)) { return false; }\n\n var nodesToSearch = [];\n while (node) {\n for (var i = 0; i < node.children.length; i++) {\n var child = node.children[i];\n var childBBox = node.leaf ? this.toBBox(child) : child;\n\n if (intersects(bbox, childBBox)) {\n if (node.leaf || contains(bbox, childBBox)) { return true; }\n nodesToSearch.push(child);\n }\n }\n node = nodesToSearch.pop();\n }\n\n return false;\n};\n\nRBush.prototype.load = function load (data) {\n if (!(data && data.length)) { return this; }\n\n if (data.length < this._minEntries) {\n for (var i = 0; i < data.length; i++) {\n this.insert(data[i]);\n }\n return this;\n }\n\n // recursively build the tree with the given data from scratch using OMT algorithm\n var node = this._build(data.slice(), 0, data.length - 1, 0);\n\n if (!this.data.children.length) {\n // save as is if tree is empty\n this.data = node;\n\n } else if (this.data.height === node.height) {\n // split root if trees have the same height\n this._splitRoot(this.data, node);\n\n } else {\n if (this.data.height < node.height) {\n // swap trees if inserted one is bigger\n var tmpNode = this.data;\n this.data = node;\n node = tmpNode;\n }\n\n // insert the small tree into the large tree at appropriate level\n this._insert(node, this.data.height - node.height - 1, true);\n }\n\n return this;\n};\n\nRBush.prototype.insert = function insert (item) {\n if (item) { this._insert(item, this.data.height - 1); }\n return this;\n};\n\nRBush.prototype.clear = function clear () {\n this.data = createNode([]);\n return this;\n};\n\nRBush.prototype.remove = function remove (item, equalsFn) {\n if (!item) { return this; }\n\n var node = this.data;\n var bbox = this.toBBox(item);\n var path = [];\n var indexes = [];\n var i, parent, goingUp;\n\n // depth-first iterative tree traversal\n while (node || path.length) {\n\n if (!node) { // go up\n node = path.pop();\n parent = path[path.length - 1];\n i = indexes.pop();\n goingUp = true;\n }\n\n if (node.leaf) { // check current node\n var index = findItem(item, node.children, equalsFn);\n\n if (index !== -1) {\n // item found, remove the item and condense tree upwards\n node.children.splice(index, 1);\n path.push(node);\n this._condense(path);\n return this;\n }\n }\n\n if (!goingUp && !node.leaf && contains(node, bbox)) { // go down\n path.push(node);\n indexes.push(i);\n i = 0;\n parent = node;\n node = node.children[0];\n\n } else if (parent) { // go right\n i++;\n node = parent.children[i];\n goingUp = false;\n\n } else { node = null; } // nothing found\n }\n\n return this;\n};\n\nRBush.prototype.toBBox = function toBBox (item) { return item; };\n\nRBush.prototype.compareMinX = function compareMinX (a, b) { return a.minX - b.minX; };\nRBush.prototype.compareMinY = function compareMinY (a, b) { return a.minY - b.minY; };\n\nRBush.prototype.toJSON = function toJSON () { return this.data; };\n\nRBush.prototype.fromJSON = function fromJSON (data) {\n this.data = data;\n return this;\n};\n\nRBush.prototype._all = function _all (node, result) {\n var nodesToSearch = [];\n while (node) {\n if (node.leaf) { result.push.apply(result, node.children); }\n else { nodesToSearch.push.apply(nodesToSearch, node.children); }\n\n node = nodesToSearch.pop();\n }\n return result;\n};\n\nRBush.prototype._build = function _build (items, left, right, height) {\n\n var N = right - left + 1;\n var M = this._maxEntries;\n var node;\n\n if (N <= M) {\n // reached leaf level; return leaf\n node = createNode(items.slice(left, right + 1));\n calcBBox(node, this.toBBox);\n return node;\n }\n\n if (!height) {\n // target height of the bulk-loaded tree\n height = Math.ceil(Math.log(N) / Math.log(M));\n\n // target number of root entries to maximize storage utilization\n M = Math.ceil(N / Math.pow(M, height - 1));\n }\n\n node = createNode([]);\n node.leaf = false;\n node.height = height;\n\n // split the items into M mostly square tiles\n\n var N2 = Math.ceil(N / M);\n var N1 = N2 * Math.ceil(Math.sqrt(M));\n\n multiSelect(items, left, right, N1, this.compareMinX);\n\n for (var i = left; i <= right; i += N1) {\n\n var right2 = Math.min(i + N1 - 1, right);\n\n multiSelect(items, i, right2, N2, this.compareMinY);\n\n for (var j = i; j <= right2; j += N2) {\n\n var right3 = Math.min(j + N2 - 1, right2);\n\n // pack each entry recursively\n node.children.push(this._build(items, j, right3, height - 1));\n }\n }\n\n calcBBox(node, this.toBBox);\n\n return node;\n};\n\nRBush.prototype._chooseSubtree = function _chooseSubtree (bbox, node, level, path) {\n while (true) {\n path.push(node);\n\n if (node.leaf || path.length - 1 === level) { break; }\n\n var minArea = Infinity;\n var minEnlargement = Infinity;\n var targetNode = (void 0);\n\n for (var i = 0; i < node.children.length; i++) {\n var child = node.children[i];\n var area = bboxArea(child);\n var enlargement = enlargedArea(bbox, child) - area;\n\n // choose entry with the least area enlargement\n if (enlargement < minEnlargement) {\n minEnlargement = enlargement;\n minArea = area < minArea ? area : minArea;\n targetNode = child;\n\n } else if (enlargement === minEnlargement) {\n // otherwise choose one with the smallest area\n if (area < minArea) {\n minArea = area;\n targetNode = child;\n }\n }\n }\n\n node = targetNode || node.children[0];\n }\n\n return node;\n};\n\nRBush.prototype._insert = function _insert (item, level, isNode) {\n var bbox = isNode ? item : this.toBBox(item);\n var insertPath = [];\n\n // find the best node for accommodating the item, saving all nodes along the path too\n var node = this._chooseSubtree(bbox, this.data, level, insertPath);\n\n // put the item into the node\n node.children.push(item);\n extend(node, bbox);\n\n // split on node overflow; propagate upwards if necessary\n while (level >= 0) {\n if (insertPath[level].children.length > this._maxEntries) {\n this._split(insertPath, level);\n level--;\n } else { break; }\n }\n\n // adjust bboxes along the insertion path\n this._adjustParentBBoxes(bbox, insertPath, level);\n};\n\n// split overflowed node into two\nRBush.prototype._split = function _split (insertPath, level) {\n var node = insertPath[level];\n var M = node.children.length;\n var m = this._minEntries;\n\n this._chooseSplitAxis(node, m, M);\n\n var splitIndex = this._chooseSplitIndex(node, m, M);\n\n var newNode = createNode(node.children.splice(splitIndex, node.children.length - splitIndex));\n newNode.height = node.height;\n newNode.leaf = node.leaf;\n\n calcBBox(node, this.toBBox);\n calcBBox(newNode, this.toBBox);\n\n if (level) { insertPath[level - 1].children.push(newNode); }\n else { this._splitRoot(node, newNode); }\n};\n\nRBush.prototype._splitRoot = function _splitRoot (node, newNode) {\n // split root node\n this.data = createNode([node, newNode]);\n this.data.height = node.height + 1;\n this.data.leaf = false;\n calcBBox(this.data, this.toBBox);\n};\n\nRBush.prototype._chooseSplitIndex = function _chooseSplitIndex (node, m, M) {\n var index;\n var minOverlap = Infinity;\n var minArea = Infinity;\n\n for (var i = m; i <= M - m; i++) {\n var bbox1 = distBBox(node, 0, i, this.toBBox);\n var bbox2 = distBBox(node, i, M, this.toBBox);\n\n var overlap = intersectionArea(bbox1, bbox2);\n var area = bboxArea(bbox1) + bboxArea(bbox2);\n\n // choose distribution with minimum overlap\n if (overlap < minOverlap) {\n minOverlap = overlap;\n index = i;\n\n minArea = area < minArea ? area : minArea;\n\n } else if (overlap === minOverlap) {\n // otherwise choose distribution with minimum area\n if (area < minArea) {\n minArea = area;\n index = i;\n }\n }\n }\n\n return index || M - m;\n};\n\n// sorts node children by the best axis for split\nRBush.prototype._chooseSplitAxis = function _chooseSplitAxis (node, m, M) {\n var compareMinX = node.leaf ? this.compareMinX : compareNodeMinX;\n var compareMinY = node.leaf ? this.compareMinY : compareNodeMinY;\n var xMargin = this._allDistMargin(node, m, M, compareMinX);\n var yMargin = this._allDistMargin(node, m, M, compareMinY);\n\n // if total distributions margin value is minimal for x, sort by minX,\n // otherwise it's already sorted by minY\n if (xMargin < yMargin) { node.children.sort(compareMinX); }\n};\n\n// total margin of all possible split distributions where each node is at least m full\nRBush.prototype._allDistMargin = function _allDistMargin (node, m, M, compare) {\n node.children.sort(compare);\n\n var toBBox = this.toBBox;\n var leftBBox = distBBox(node, 0, m, toBBox);\n var rightBBox = distBBox(node, M - m, M, toBBox);\n var margin = bboxMargin(leftBBox) + bboxMargin(rightBBox);\n\n for (var i = m; i < M - m; i++) {\n var child = node.children[i];\n extend(leftBBox, node.leaf ? toBBox(child) : child);\n margin += bboxMargin(leftBBox);\n }\n\n for (var i$1 = M - m - 1; i$1 >= m; i$1--) {\n var child$1 = node.children[i$1];\n extend(rightBBox, node.leaf ? toBBox(child$1) : child$1);\n margin += bboxMargin(rightBBox);\n }\n\n return margin;\n};\n\nRBush.prototype._adjustParentBBoxes = function _adjustParentBBoxes (bbox, path, level) {\n // adjust bboxes along the given tree path\n for (var i = level; i >= 0; i--) {\n extend(path[i], bbox);\n }\n};\n\nRBush.prototype._condense = function _condense (path) {\n // go through the path, removing empty nodes and updating bboxes\n for (var i = path.length - 1, siblings = (void 0); i >= 0; i--) {\n if (path[i].children.length === 0) {\n if (i > 0) {\n siblings = path[i - 1].children;\n siblings.splice(siblings.indexOf(path[i]), 1);\n\n } else { this.clear(); }\n\n } else { calcBBox(path[i], this.toBBox); }\n }\n};\n\nfunction findItem(item, items, equalsFn) {\n if (!equalsFn) { return items.indexOf(item); }\n\n for (var i = 0; i < items.length; i++) {\n if (equalsFn(item, items[i])) { return i; }\n }\n return -1;\n}\n\n// calculate node's bbox from bboxes of its children\nfunction calcBBox(node, toBBox) {\n distBBox(node, 0, node.children.length, toBBox, node);\n}\n\n// min bounding rectangle of node children from k to p-1\nfunction distBBox(node, k, p, toBBox, destNode) {\n if (!destNode) { destNode = createNode(null); }\n destNode.minX = Infinity;\n destNode.minY = Infinity;\n destNode.maxX = -Infinity;\n destNode.maxY = -Infinity;\n\n for (var i = k; i < p; i++) {\n var child = node.children[i];\n extend(destNode, node.leaf ? toBBox(child) : child);\n }\n\n return destNode;\n}\n\nfunction extend(a, b) {\n a.minX = Math.min(a.minX, b.minX);\n a.minY = Math.min(a.minY, b.minY);\n a.maxX = Math.max(a.maxX, b.maxX);\n a.maxY = Math.max(a.maxY, b.maxY);\n return a;\n}\n\nfunction compareNodeMinX(a, b) { return a.minX - b.minX; }\nfunction compareNodeMinY(a, b) { return a.minY - b.minY; }\n\nfunction bboxArea(a) { return (a.maxX - a.minX) * (a.maxY - a.minY); }\nfunction bboxMargin(a) { return (a.maxX - a.minX) + (a.maxY - a.minY); }\n\nfunction enlargedArea(a, b) {\n return (Math.max(b.maxX, a.maxX) - Math.min(b.minX, a.minX)) *\n (Math.max(b.maxY, a.maxY) - Math.min(b.minY, a.minY));\n}\n\nfunction intersectionArea(a, b) {\n var minX = Math.max(a.minX, b.minX);\n var minY = Math.max(a.minY, b.minY);\n var maxX = Math.min(a.maxX, b.maxX);\n var maxY = Math.min(a.maxY, b.maxY);\n\n return Math.max(0, maxX - minX) *\n Math.max(0, maxY - minY);\n}\n\nfunction contains(a, b) {\n return a.minX <= b.minX &&\n a.minY <= b.minY &&\n b.maxX <= a.maxX &&\n b.maxY <= a.maxY;\n}\n\nfunction intersects(a, b) {\n return b.minX <= a.maxX &&\n b.minY <= a.maxY &&\n b.maxX >= a.minX &&\n b.maxY >= a.minY;\n}\n\nfunction createNode(children) {\n return {\n children: children,\n height: 1,\n leaf: true,\n minX: Infinity,\n minY: Infinity,\n maxX: -Infinity,\n maxY: -Infinity\n };\n}\n\n// sort an array so that items come in groups of n unsorted items, with groups sorted between each other;\n// combines selection algorithm with binary divide & conquer approach\n\nfunction multiSelect(arr, left, right, n, compare) {\n var stack = [left, right];\n\n while (stack.length) {\n right = stack.pop();\n left = stack.pop();\n\n if (right - left <= n) { continue; }\n\n var mid = left + Math.ceil((right - left) / n / 2) * n;\n quickselect(arr, mid, left, right, compare);\n\n stack.push(left, mid, mid, right);\n }\n}\n\nreturn RBush;\n\n}));\n","/**\n * @module ol/geom/flat/textpath\n */\nimport {lerp} from '../../math.js';\nimport {rotate} from './transform.js';\n\n/**\n * @param {Array<number>} flatCoordinates Path to put text on.\n * @param {number} offset Start offset of the `flatCoordinates`.\n * @param {number} end End offset of the `flatCoordinates`.\n * @param {number} stride Stride.\n * @param {string} text Text to place on the path.\n * @param {number} startM m along the path where the text starts.\n * @param {number} maxAngle Max angle between adjacent chars in radians.\n * @param {number} scale The product of the text scale and the device pixel ratio.\n * @param {function(string, string, Object<string, number>):number} measureAndCacheTextWidth Measure and cache text width.\n * @param {string} font The font.\n * @param {Object<string, number>} cache A cache of measured widths.\n * @param {number} rotation Rotation to apply to the flatCoordinates to determine whether text needs to be reversed.\n * @return {Array<Array<*>>} The result array (or null if `maxAngle` was\n * exceeded). Entries of the array are x, y, anchorX, angle, chunk.\n */\nexport function drawTextOnPath(\n flatCoordinates,\n offset,\n end,\n stride,\n text,\n startM,\n maxAngle,\n scale,\n measureAndCacheTextWidth,\n font,\n cache,\n rotation\n) {\n const result = [];\n\n // Keep text upright\n let reverse;\n if (rotation) {\n const rotatedCoordinates = rotate(\n flatCoordinates,\n offset,\n end,\n stride,\n rotation,\n [flatCoordinates[offset], flatCoordinates[offset + 1]]\n );\n reverse =\n rotatedCoordinates[0] >\n rotatedCoordinates[rotatedCoordinates.length - stride];\n } else {\n reverse = flatCoordinates[offset] > flatCoordinates[end - stride];\n }\n\n const numChars = text.length;\n\n let x1 = flatCoordinates[offset];\n let y1 = flatCoordinates[offset + 1];\n offset += stride;\n let x2 = flatCoordinates[offset];\n let y2 = flatCoordinates[offset + 1];\n let segmentM = 0;\n let segmentLength = Math.sqrt(Math.pow(x2 - x1, 2) + Math.pow(y2 - y1, 2));\n let angleChanged = false;\n\n let index, previousAngle;\n for (let i = 0; i < numChars; ++i) {\n index = reverse ? numChars - i - 1 : i;\n const char = text[index];\n const charLength = scale * measureAndCacheTextWidth(font, char, cache);\n const charM = startM + charLength / 2;\n while (offset < end - stride && segmentM + segmentLength < charM) {\n x1 = x2;\n y1 = y2;\n offset += stride;\n x2 = flatCoordinates[offset];\n y2 = flatCoordinates[offset + 1];\n segmentM += segmentLength;\n segmentLength = Math.sqrt(Math.pow(x2 - x1, 2) + Math.pow(y2 - y1, 2));\n }\n const segmentPos = charM - segmentM;\n let angle = Math.atan2(y2 - y1, x2 - x1);\n if (reverse) {\n angle += angle > 0 ? -Math.PI : Math.PI;\n }\n if (previousAngle !== undefined) {\n let delta = angle - previousAngle;\n angleChanged = angleChanged || delta !== 0;\n delta +=\n delta > Math.PI ? -2 * Math.PI : delta < -Math.PI ? 2 * Math.PI : 0;\n if (Math.abs(delta) > maxAngle) {\n return null;\n }\n }\n previousAngle = angle;\n const interpolate = segmentPos / segmentLength;\n const x = lerp(x1, x2, interpolate);\n const y = lerp(y1, y2, interpolate);\n result[index] = [x, y, charLength / 2, angle, char];\n startM += charLength;\n }\n return angleChanged\n ? result\n : [[result[0][0], result[0][1], result[0][2], result[0][3], text]];\n}\n","/**\n * @module ol/render/canvas/Executor\n */\nimport CanvasInstruction from './Instruction.js';\nimport RBush from 'rbush/rbush.js';\nimport {TEXT_ALIGN} from './TextBuilder.js';\nimport {WORKER_OFFSCREEN_CANVAS} from '../../has.js';\nimport {\n apply as applyTransform,\n compose as composeTransform,\n create as createTransform,\n setFromArray as transformSetFromArray,\n} from '../../transform.js';\nimport {\n createEmpty,\n createOrUpdate,\n getHeight,\n getWidth,\n intersects,\n} from '../../extent.js';\nimport {\n defaultPadding,\n defaultTextBaseline,\n drawImageOrLabel,\n} from '../canvas.js';\nimport {\n defaultTextAlign,\n measureAndCacheTextWidth,\n measureTextHeight,\n measureTextWidths,\n} from '../canvas.js';\nimport {drawTextOnPath} from '../../geom/flat/textpath.js';\nimport {equals} from '../../array.js';\nimport {lineStringLength} from '../../geom/flat/length.js';\nimport {transform2D} from '../../geom/flat/transform.js';\n\n/**\n * @typedef {Object} SerializableInstructions\n * @property {Array<*>} instructions The rendering instructions.\n * @property {Array<*>} hitDetectionInstructions The rendering hit detection instructions.\n * @property {Array<number>} coordinates The array of all coordinates.\n * @property {!Object<string, import(\"../canvas.js\").TextState>} textStates The text states (decluttering).\n * @property {!Object<string, import(\"../canvas.js\").FillState>} fillStates The fill states (decluttering).\n * @property {!Object<string, import(\"../canvas.js\").StrokeState>} strokeStates The stroke states (decluttering).\n */\n\n/**\n * @type {import(\"../../extent.js\").Extent}\n */\nconst tmpExtent = createEmpty();\n\n/**\n * @type {!import(\"../../transform.js\").Transform}\n */\nconst tmpTransform = createTransform();\n\n/** @type {import(\"../../coordinate.js\").Coordinate} */\nconst p1 = [];\n/** @type {import(\"../../coordinate.js\").Coordinate} */\nconst p2 = [];\n/** @type {import(\"../../coordinate.js\").Coordinate} */\nconst p3 = [];\n/** @type {import(\"../../coordinate.js\").Coordinate} */\nconst p4 = [];\n\nclass Executor {\n /**\n * @param {number} resolution Resolution.\n * @param {number} pixelRatio Pixel ratio.\n * @param {boolean} overlaps The replay can have overlapping geometries.\n * @param {SerializableInstructions} instructions The serializable instructions\n * @param {import(\"../../size.js\").Size} renderBuffer Render buffer (width/height) in pixels.\n */\n constructor(resolution, pixelRatio, overlaps, instructions, renderBuffer) {\n /**\n * @protected\n * @type {boolean}\n */\n this.overlaps = overlaps;\n\n /**\n * @protected\n * @type {number}\n */\n this.pixelRatio = pixelRatio;\n\n /**\n * @protected\n * @const\n * @type {number}\n */\n this.resolution = resolution;\n\n /**\n * @private\n * @type {boolean}\n */\n this.alignFill_;\n\n /**\n * @type {Array<*>}\n */\n this.declutterItems = [];\n\n /**\n * @protected\n * @type {Array<*>}\n */\n this.instructions = instructions.instructions;\n\n /**\n * @protected\n * @type {Array<number>}\n */\n this.coordinates = instructions.coordinates;\n\n /**\n * @private\n * @type {!Object<number,import(\"../../coordinate.js\").Coordinate|Array<import(\"../../coordinate.js\").Coordinate>|Array<Array<import(\"../../coordinate.js\").Coordinate>>>}\n */\n this.coordinateCache_ = {};\n\n /**\n * @private\n * @type {import(\"../../size.js\").Size}\n */\n this.renderBuffer_ = renderBuffer;\n\n /**\n * @private\n * @type {!import(\"../../transform.js\").Transform}\n */\n this.renderedTransform_ = createTransform();\n\n /**\n * @protected\n * @type {Array<*>}\n */\n this.hitDetectionInstructions = instructions.hitDetectionInstructions;\n\n /**\n * @private\n * @type {Array<number>}\n */\n this.pixelCoordinates_ = null;\n\n /**\n * @private\n * @type {number}\n */\n this.viewRotation_ = 0;\n\n /**\n * @type {!Object<string, import(\"../canvas.js\").FillState>}\n */\n this.fillStates = instructions.fillStates || {};\n\n /**\n * @type {!Object<string, import(\"../canvas.js\").StrokeState>}\n */\n this.strokeStates = instructions.strokeStates || {};\n\n /**\n * @type {!Object<string, import(\"../canvas.js\").TextState>}\n */\n this.textStates = instructions.textStates || {};\n\n /**\n * @private\n * @type {Object<string, Object<string, number>>}\n */\n this.widths_ = {};\n\n /**\n * @private\n * @type {Object<string, import(\"../canvas.js\").Label>}\n */\n this.labels_ = {};\n }\n\n /**\n * @param {string} text Text.\n * @param {string} textKey Text style key.\n * @param {string} fillKey Fill style key.\n * @param {string} strokeKey Stroke style key.\n * @return {import(\"../canvas.js\").Label} Label.\n */\n createLabel(text, textKey, fillKey, strokeKey) {\n const key = text + textKey + fillKey + strokeKey;\n if (this.labels_[key]) {\n return this.labels_[key];\n }\n const strokeState = strokeKey ? this.strokeStates[strokeKey] : null;\n const fillState = fillKey ? this.fillStates[fillKey] : null;\n const textState = this.textStates[textKey];\n const pixelRatio = this.pixelRatio;\n const scale = [\n textState.scale[0] * pixelRatio,\n textState.scale[1] * pixelRatio,\n ];\n const align = TEXT_ALIGN[textState.textAlign || defaultTextAlign];\n const strokeWidth =\n strokeKey && strokeState.lineWidth ? strokeState.lineWidth : 0;\n\n const lines = text.split('\\n');\n const numLines = lines.length;\n const widths = [];\n const width = measureTextWidths(textState.font, lines, widths);\n const lineHeight = measureTextHeight(textState.font);\n const height = lineHeight * numLines;\n const renderWidth = width + strokeWidth;\n const contextInstructions = [];\n // make canvas 2 pixels wider to account for italic text width measurement errors\n const w = (renderWidth + 2) * scale[0];\n const h = (height + strokeWidth) * scale[1];\n /** @type {import(\"../canvas.js\").Label} */\n const label = {\n width: w < 0 ? Math.floor(w) : Math.ceil(w),\n height: h < 0 ? Math.floor(h) : Math.ceil(h),\n contextInstructions: contextInstructions,\n };\n if (scale[0] != 1 || scale[1] != 1) {\n contextInstructions.push('scale', scale);\n }\n contextInstructions.push('font', textState.font);\n if (strokeKey) {\n contextInstructions.push('strokeStyle', strokeState.strokeStyle);\n contextInstructions.push('lineWidth', strokeWidth);\n contextInstructions.push('lineCap', strokeState.lineCap);\n contextInstructions.push('lineJoin', strokeState.lineJoin);\n contextInstructions.push('miterLimit', strokeState.miterLimit);\n // eslint-disable-next-line\n const Context = WORKER_OFFSCREEN_CANVAS ? OffscreenCanvasRenderingContext2D : CanvasRenderingContext2D;\n if (Context.prototype.setLineDash) {\n contextInstructions.push('setLineDash', [strokeState.lineDash]);\n contextInstructions.push('lineDashOffset', strokeState.lineDashOffset);\n }\n }\n if (fillKey) {\n contextInstructions.push('fillStyle', fillState.fillStyle);\n }\n contextInstructions.push('textBaseline', 'middle');\n contextInstructions.push('textAlign', 'center');\n const leftRight = 0.5 - align;\n const x = align * renderWidth + leftRight * strokeWidth;\n let i;\n if (strokeKey) {\n for (i = 0; i < numLines; ++i) {\n contextInstructions.push('strokeText', [\n lines[i],\n x + leftRight * widths[i],\n 0.5 * (strokeWidth + lineHeight) + i * lineHeight,\n ]);\n }\n }\n if (fillKey) {\n for (i = 0; i < numLines; ++i) {\n contextInstructions.push('fillText', [\n lines[i],\n x + leftRight * widths[i],\n 0.5 * (strokeWidth + lineHeight) + i * lineHeight,\n ]);\n }\n }\n this.labels_[key] = label;\n return label;\n }\n\n /**\n * @param {CanvasRenderingContext2D} context Context.\n * @param {import(\"../../coordinate.js\").Coordinate} p1 1st point of the background box.\n * @param {import(\"../../coordinate.js\").Coordinate} p2 2nd point of the background box.\n * @param {import(\"../../coordinate.js\").Coordinate} p3 3rd point of the background box.\n * @param {import(\"../../coordinate.js\").Coordinate} p4 4th point of the background box.\n * @param {Array<*>} fillInstruction Fill instruction.\n * @param {Array<*>} strokeInstruction Stroke instruction.\n * @param {boolean} declutter Declutter.\n */\n replayTextBackground_(\n context,\n p1,\n p2,\n p3,\n p4,\n fillInstruction,\n strokeInstruction,\n declutter\n ) {\n context.beginPath();\n context.moveTo.apply(context, p1);\n context.lineTo.apply(context, p2);\n context.lineTo.apply(context, p3);\n context.lineTo.apply(context, p4);\n context.lineTo.apply(context, p1);\n if (fillInstruction) {\n this.alignFill_ = /** @type {boolean} */ (fillInstruction[2]);\n if (declutter) {\n context.fillStyle = /** @type {import(\"../../colorlike.js\").ColorLike} */ (fillInstruction[1]);\n }\n this.fill_(context);\n }\n if (strokeInstruction) {\n this.setStrokeStyle_(\n context,\n /** @type {Array<*>} */ (strokeInstruction)\n );\n context.stroke();\n }\n }\n\n /**\n * @private\n * @param {CanvasRenderingContext2D} context Context.\n * @param {number} contextScale Scale of the context.\n * @param {number} x X.\n * @param {number} y Y.\n * @param {import(\"../canvas.js\").Label|HTMLImageElement|HTMLCanvasElement|HTMLVideoElement} imageOrLabel Image.\n * @param {number} anchorX Anchor X.\n * @param {number} anchorY Anchor Y.\n * @param {import(\"../canvas.js\").DeclutterGroup} declutterGroup Declutter group.\n * @param {number} height Height.\n * @param {number} opacity Opacity.\n * @param {number} originX Origin X.\n * @param {number} originY Origin Y.\n * @param {number} rotation Rotation.\n * @param {import(\"../../size.js\").Size} scale Scale.\n * @param {boolean} snapToPixel Snap to pixel.\n * @param {number} width Width.\n * @param {Array<number>} padding Padding.\n * @param {Array<*>} fillInstruction Fill instruction.\n * @param {Array<*>} strokeInstruction Stroke instruction.\n * @return {boolean} The image or label was rendered.\n */\n replayImageOrLabel_(\n context,\n contextScale,\n x,\n y,\n imageOrLabel,\n anchorX,\n anchorY,\n declutterGroup,\n height,\n opacity,\n originX,\n originY,\n rotation,\n scale,\n snapToPixel,\n width,\n padding,\n fillInstruction,\n strokeInstruction\n ) {\n const fillStroke = fillInstruction || strokeInstruction;\n anchorX *= scale[0];\n anchorY *= scale[1];\n x -= anchorX;\n y -= anchorY;\n\n const w =\n width + originX > imageOrLabel.width\n ? imageOrLabel.width - originX\n : width;\n const h =\n height + originY > imageOrLabel.height\n ? imageOrLabel.height - originY\n : height;\n const boxW = padding[3] + w * scale[0] + padding[1];\n const boxH = padding[0] + h * scale[1] + padding[2];\n const boxX = x - padding[3];\n const boxY = y - padding[0];\n\n if (fillStroke || rotation !== 0) {\n p1[0] = boxX;\n p4[0] = boxX;\n p1[1] = boxY;\n p2[1] = boxY;\n p2[0] = boxX + boxW;\n p3[0] = p2[0];\n p3[1] = boxY + boxH;\n p4[1] = p3[1];\n }\n\n let transform = null;\n if (rotation !== 0) {\n const centerX = x + anchorX;\n const centerY = y + anchorY;\n transform = composeTransform(\n tmpTransform,\n centerX,\n centerY,\n 1,\n 1,\n rotation,\n -centerX,\n -centerY\n );\n\n applyTransform(tmpTransform, p1);\n applyTransform(tmpTransform, p2);\n applyTransform(tmpTransform, p3);\n applyTransform(tmpTransform, p4);\n createOrUpdate(\n Math.min(p1[0], p2[0], p3[0], p4[0]),\n Math.min(p1[1], p2[1], p3[1], p4[1]),\n Math.max(p1[0], p2[0], p3[0], p4[0]),\n Math.max(p1[1], p2[1], p3[1], p4[1]),\n tmpExtent\n );\n } else {\n createOrUpdate(boxX, boxY, boxX + boxW, boxY + boxH, tmpExtent);\n }\n let renderBufferX = 0;\n let renderBufferY = 0;\n if (declutterGroup) {\n const renderBuffer = this.renderBuffer_;\n renderBuffer[0] = Math.max(renderBuffer[0], getWidth(tmpExtent));\n renderBufferX = renderBuffer[0];\n renderBuffer[1] = Math.max(renderBuffer[1], getHeight(tmpExtent));\n renderBufferY = renderBuffer[1];\n }\n const canvas = context.canvas;\n const strokePadding = strokeInstruction\n ? (strokeInstruction[2] * scale[0]) / 2\n : 0;\n const intersects =\n tmpExtent[0] - strokePadding <=\n (canvas.width + renderBufferX) / contextScale &&\n tmpExtent[2] + strokePadding >= -renderBufferX / contextScale &&\n tmpExtent[1] - strokePadding <=\n (canvas.height + renderBufferY) / contextScale &&\n tmpExtent[3] + strokePadding >= -renderBufferY / contextScale;\n\n if (snapToPixel) {\n x = Math.round(x);\n y = Math.round(y);\n }\n\n if (declutterGroup) {\n if (!intersects && declutterGroup[0] == 1) {\n return false;\n }\n const declutterArgs = intersects\n ? [\n context,\n transform ? transform.slice(0) : null,\n opacity,\n imageOrLabel,\n originX,\n originY,\n w,\n h,\n x,\n y,\n scale,\n tmpExtent.slice(),\n ]\n : null;\n if (declutterArgs) {\n if (fillStroke) {\n declutterArgs.push(\n fillInstruction,\n strokeInstruction,\n p1.slice(0),\n p2.slice(0),\n p3.slice(0),\n p4.slice(0)\n );\n }\n declutterGroup.push(declutterArgs);\n }\n } else if (intersects) {\n if (fillStroke) {\n this.replayTextBackground_(\n context,\n p1,\n p2,\n p3,\n p4,\n /** @type {Array<*>} */ (fillInstruction),\n /** @type {Array<*>} */ (strokeInstruction),\n false\n );\n }\n drawImageOrLabel(\n context,\n transform,\n opacity,\n imageOrLabel,\n originX,\n originY,\n w,\n h,\n x,\n y,\n scale\n );\n }\n return true;\n }\n\n /**\n * @private\n * @param {CanvasRenderingContext2D} context Context.\n */\n fill_(context) {\n if (this.alignFill_) {\n const origin = applyTransform(this.renderedTransform_, [0, 0]);\n const repeatSize = 512 * this.pixelRatio;\n context.save();\n context.translate(origin[0] % repeatSize, origin[1] % repeatSize);\n context.rotate(this.viewRotation_);\n }\n context.fill();\n if (this.alignFill_) {\n context.restore();\n }\n }\n\n /**\n * @private\n * @param {CanvasRenderingContext2D} context Context.\n * @param {Array<*>} instruction Instruction.\n */\n setStrokeStyle_(context, instruction) {\n context.strokeStyle = /** @type {import(\"../../colorlike.js\").ColorLike} */ (instruction[1]);\n context.lineWidth = /** @type {number} */ (instruction[2]);\n context.lineCap = /** @type {CanvasLineCap} */ (instruction[3]);\n context.lineJoin = /** @type {CanvasLineJoin} */ (instruction[4]);\n context.miterLimit = /** @type {number} */ (instruction[5]);\n if (context.setLineDash) {\n context.lineDashOffset = /** @type {number} */ (instruction[7]);\n context.setLineDash(/** @type {Array<number>} */ (instruction[6]));\n }\n }\n\n /**\n * @param {import(\"../canvas.js\").DeclutterGroup} declutterGroup Declutter group.\n * @param {import(\"../../Feature.js\").FeatureLike} feature Feature.\n * @param {number} opacity Layer opacity.\n * @param {?} declutterTree Declutter tree.\n * @return {?} Declutter tree.\n */\n renderDeclutter(declutterGroup, feature, opacity, declutterTree) {\n /** @type {Array<import(\"../../structs/RBush.js\").Entry>} */\n const boxes = [];\n for (let i = 1, ii = declutterGroup.length; i < ii; ++i) {\n const declutterData = declutterGroup[i];\n const box = declutterData[11];\n boxes.push({\n minX: box[0],\n minY: box[1],\n maxX: box[2],\n maxY: box[3],\n value: feature,\n });\n }\n if (!declutterTree) {\n declutterTree = new RBush(9);\n }\n let collides = false;\n for (let i = 0, ii = boxes.length; i < ii; ++i) {\n if (declutterTree.collides(boxes[i])) {\n collides = true;\n break;\n }\n }\n if (!collides) {\n declutterTree.load(boxes);\n for (let j = 1, jj = declutterGroup.length; j < jj; ++j) {\n const declutterData = /** @type {Array} */ (declutterGroup[j]);\n const context = declutterData[0];\n const currentAlpha = context.globalAlpha;\n if (currentAlpha !== opacity) {\n context.globalAlpha = opacity;\n }\n if (declutterData.length > 12) {\n this.replayTextBackground_(\n declutterData[0],\n declutterData[14],\n declutterData[15],\n declutterData[16],\n declutterData[17],\n declutterData[12],\n declutterData[13],\n true\n );\n }\n drawImageOrLabel.apply(undefined, declutterData);\n if (currentAlpha !== opacity) {\n context.globalAlpha = currentAlpha;\n }\n }\n }\n declutterGroup.length = 1;\n return declutterTree;\n }\n\n /**\n * @private\n * @param {string} text The text to draw.\n * @param {string} textKey The key of the text state.\n * @param {string} strokeKey The key for the stroke state.\n * @param {string} fillKey The key for the fill state.\n * @return {{label: import(\"../canvas.js\").Label, anchorX: number, anchorY: number}} The text image and its anchor.\n */\n drawLabelWithPointPlacement_(text, textKey, strokeKey, fillKey) {\n const textState = this.textStates[textKey];\n\n const label = this.createLabel(text, textKey, fillKey, strokeKey);\n\n const strokeState = this.strokeStates[strokeKey];\n const pixelRatio = this.pixelRatio;\n const align = TEXT_ALIGN[textState.textAlign || defaultTextAlign];\n const baseline = TEXT_ALIGN[textState.textBaseline || defaultTextBaseline];\n const strokeWidth =\n strokeState && strokeState.lineWidth ? strokeState.lineWidth : 0;\n\n // Remove the 2 pixels we added in createLabel() for the anchor\n const width = label.width / pixelRatio - 2 * textState.scale[0];\n const anchorX = align * width + 2 * (0.5 - align) * strokeWidth;\n const anchorY =\n (baseline * label.height) / pixelRatio +\n 2 * (0.5 - baseline) * strokeWidth;\n\n return {\n label: label,\n anchorX: anchorX,\n anchorY: anchorY,\n };\n }\n\n /**\n * @private\n * @param {CanvasRenderingContext2D} context Context.\n * @param {number} contextScale Scale of the context.\n * @param {import(\"../../transform.js\").Transform} transform Transform.\n * @param {Array<*>} instructions Instructions array.\n * @param {boolean} snapToPixel Snap point symbols and text to integer pixels.\n * @param {function(import(\"../../Feature.js\").FeatureLike): T|undefined} featureCallback Feature callback.\n * @param {import(\"../../extent.js\").Extent=} opt_hitExtent Only check features that intersect this\n * extent.\n * @return {T|undefined} Callback result.\n * @template T\n */\n execute_(\n context,\n contextScale,\n transform,\n instructions,\n snapToPixel,\n featureCallback,\n opt_hitExtent\n ) {\n this.declutterItems.length = 0;\n /** @type {Array<number>} */\n let pixelCoordinates;\n if (this.pixelCoordinates_ && equals(transform, this.renderedTransform_)) {\n pixelCoordinates = this.pixelCoordinates_;\n } else {\n if (!this.pixelCoordinates_) {\n this.pixelCoordinates_ = [];\n }\n pixelCoordinates = transform2D(\n this.coordinates,\n 0,\n this.coordinates.length,\n 2,\n transform,\n this.pixelCoordinates_\n );\n transformSetFromArray(this.renderedTransform_, transform);\n }\n let i = 0; // instruction index\n const ii = instructions.length; // end of instructions\n let d = 0; // data index\n let dd; // end of per-instruction data\n let anchorX,\n anchorY,\n prevX,\n prevY,\n roundX,\n roundY,\n declutterGroup,\n declutterGroups,\n image,\n text,\n textKey;\n let strokeKey, fillKey;\n let pendingFill = 0;\n let pendingStroke = 0;\n let lastFillInstruction = null;\n let lastStrokeInstruction = null;\n const coordinateCache = this.coordinateCache_;\n const viewRotation = this.viewRotation_;\n const viewRotationFromTransform =\n Math.round(Math.atan2(-transform[1], transform[0]) * 1e12) / 1e12;\n\n const state = /** @type {import(\"../../render.js\").State} */ ({\n context: context,\n pixelRatio: this.pixelRatio,\n resolution: this.resolution,\n rotation: viewRotation,\n });\n\n // When the batch size gets too big, performance decreases. 200 is a good\n // balance between batch size and number of fill/stroke instructions.\n const batchSize =\n this.instructions != instructions || this.overlaps ? 0 : 200;\n let /** @type {import(\"../../Feature.js\").FeatureLike} */ feature;\n let x, y;\n while (i < ii) {\n const instruction = instructions[i];\n const type = /** @type {import(\"./Instruction.js\").default} */ (instruction[0]);\n switch (type) {\n case CanvasInstruction.BEGIN_GEOMETRY:\n feature = /** @type {import(\"../../Feature.js\").FeatureLike} */ (instruction[1]);\n if (!feature.getGeometry()) {\n i = /** @type {number} */ (instruction[2]);\n } else if (\n opt_hitExtent !== undefined &&\n !intersects(opt_hitExtent, instruction[3])\n ) {\n i = /** @type {number} */ (instruction[2]) + 1;\n } else {\n ++i;\n }\n break;\n case CanvasInstruction.BEGIN_PATH:\n if (pendingFill > batchSize) {\n this.fill_(context);\n pendingFill = 0;\n }\n if (pendingStroke > batchSize) {\n context.stroke();\n pendingStroke = 0;\n }\n if (!pendingFill && !pendingStroke) {\n context.beginPath();\n prevX = NaN;\n prevY = NaN;\n }\n ++i;\n break;\n case CanvasInstruction.CIRCLE:\n d = /** @type {number} */ (instruction[1]);\n const x1 = pixelCoordinates[d];\n const y1 = pixelCoordinates[d + 1];\n const x2 = pixelCoordinates[d + 2];\n const y2 = pixelCoordinates[d + 3];\n const dx = x2 - x1;\n const dy = y2 - y1;\n const r = Math.sqrt(dx * dx + dy * dy);\n context.moveTo(x1 + r, y1);\n context.arc(x1, y1, r, 0, 2 * Math.PI, true);\n ++i;\n break;\n case CanvasInstruction.CLOSE_PATH:\n context.closePath();\n ++i;\n break;\n case CanvasInstruction.CUSTOM:\n d = /** @type {number} */ (instruction[1]);\n dd = instruction[2];\n const geometry = /** @type {import(\"../../geom/SimpleGeometry.js\").default} */ (instruction[3]);\n const renderer = instruction[4];\n const fn = instruction.length == 6 ? instruction[5] : undefined;\n state.geometry = geometry;\n state.feature = feature;\n if (!(i in coordinateCache)) {\n coordinateCache[i] = [];\n }\n const coords = coordinateCache[i];\n if (fn) {\n fn(pixelCoordinates, d, dd, 2, coords);\n } else {\n coords[0] = pixelCoordinates[d];\n coords[1] = pixelCoordinates[d + 1];\n coords.length = 2;\n }\n renderer(coords, state);\n ++i;\n break;\n case CanvasInstruction.DRAW_IMAGE:\n d = /** @type {number} */ (instruction[1]);\n dd = /** @type {number} */ (instruction[2]);\n image = /** @type {HTMLCanvasElement|HTMLVideoElement|HTMLImageElement} */ (instruction[3]);\n\n // Remaining arguments in DRAW_IMAGE are in alphabetical order\n anchorX = /** @type {number} */ (instruction[4]);\n anchorY = /** @type {number} */ (instruction[5]);\n declutterGroups = featureCallback ? null : instruction[6];\n let height = /** @type {number} */ (instruction[7]);\n const opacity = /** @type {number} */ (instruction[8]);\n const originX = /** @type {number} */ (instruction[9]);\n const originY = /** @type {number} */ (instruction[10]);\n const rotateWithView = /** @type {boolean} */ (instruction[11]);\n let rotation = /** @type {number} */ (instruction[12]);\n const scale = /** @type {import(\"../../size.js\").Size} */ (instruction[13]);\n let width = /** @type {number} */ (instruction[14]);\n\n if (!image && instruction.length >= 19) {\n // create label images\n text = /** @type {string} */ (instruction[18]);\n textKey = /** @type {string} */ (instruction[19]);\n strokeKey = /** @type {string} */ (instruction[20]);\n fillKey = /** @type {string} */ (instruction[21]);\n const labelWithAnchor = this.drawLabelWithPointPlacement_(\n text,\n textKey,\n strokeKey,\n fillKey\n );\n image = labelWithAnchor.label;\n instruction[3] = image;\n const textOffsetX = /** @type {number} */ (instruction[22]);\n anchorX = (labelWithAnchor.anchorX - textOffsetX) * this.pixelRatio;\n instruction[4] = anchorX;\n const textOffsetY = /** @type {number} */ (instruction[23]);\n anchorY = (labelWithAnchor.anchorY - textOffsetY) * this.pixelRatio;\n instruction[5] = anchorY;\n height = image.height;\n instruction[7] = height;\n width = image.width;\n instruction[14] = width;\n }\n\n let geometryWidths;\n if (instruction.length > 24) {\n geometryWidths = /** @type {number} */ (instruction[24]);\n }\n\n let padding, backgroundFill, backgroundStroke;\n if (instruction.length > 16) {\n padding = /** @type {Array<number>} */ (instruction[15]);\n backgroundFill = /** @type {boolean} */ (instruction[16]);\n backgroundStroke = /** @type {boolean} */ (instruction[17]);\n } else {\n padding = defaultPadding;\n backgroundFill = false;\n backgroundStroke = false;\n }\n\n if (rotateWithView && viewRotationFromTransform) {\n // Canvas is expected to be rotated to reverse view rotation.\n rotation += viewRotation;\n } else if (!rotateWithView && !viewRotationFromTransform) {\n // Canvas is not rotated, images need to be rotated back to be north-up.\n rotation -= viewRotation;\n }\n let widthIndex = 0;\n let declutterGroupIndex = 0;\n for (; d < dd; d += 2) {\n if (\n geometryWidths &&\n geometryWidths[widthIndex++] < width / this.pixelRatio\n ) {\n continue;\n }\n if (declutterGroups) {\n const index = Math.floor(declutterGroupIndex);\n declutterGroup =\n declutterGroups.length < index + 1\n ? [declutterGroups[0][0]]\n : declutterGroups[index];\n }\n const rendered = this.replayImageOrLabel_(\n context,\n contextScale,\n pixelCoordinates[d],\n pixelCoordinates[d + 1],\n image,\n anchorX,\n anchorY,\n declutterGroup,\n height,\n opacity,\n originX,\n originY,\n rotation,\n scale,\n snapToPixel,\n width,\n padding,\n backgroundFill\n ? /** @type {Array<*>} */ (lastFillInstruction)\n : null,\n backgroundStroke\n ? /** @type {Array<*>} */ (lastStrokeInstruction)\n : null\n );\n if (\n rendered &&\n declutterGroup &&\n declutterGroups[declutterGroups.length - 1] !== declutterGroup\n ) {\n declutterGroups.push(declutterGroup);\n }\n if (declutterGroup) {\n if (declutterGroup.length - 1 === declutterGroup[0]) {\n this.declutterItems.push(this, declutterGroup, feature);\n }\n declutterGroupIndex += 1 / declutterGroup[0];\n }\n }\n ++i;\n break;\n case CanvasInstruction.DRAW_CHARS:\n const begin = /** @type {number} */ (instruction[1]);\n const end = /** @type {number} */ (instruction[2]);\n const baseline = /** @type {number} */ (instruction[3]);\n declutterGroup = featureCallback ? null : instruction[4];\n const overflow = /** @type {number} */ (instruction[5]);\n fillKey = /** @type {string} */ (instruction[6]);\n const maxAngle = /** @type {number} */ (instruction[7]);\n const measurePixelRatio = /** @type {number} */ (instruction[8]);\n const offsetY = /** @type {number} */ (instruction[9]);\n strokeKey = /** @type {string} */ (instruction[10]);\n const strokeWidth = /** @type {number} */ (instruction[11]);\n text = /** @type {string} */ (instruction[12]);\n textKey = /** @type {string} */ (instruction[13]);\n const pixelRatioScale = [\n /** @type {number} */ (instruction[14]),\n /** @type {number} */ (instruction[14]),\n ];\n\n const textState = this.textStates[textKey];\n const font = textState.font;\n const textScale = [\n textState.scale[0] * measurePixelRatio,\n textState.scale[1] * measurePixelRatio,\n ];\n\n let cachedWidths;\n if (font in this.widths_) {\n cachedWidths = this.widths_[font];\n } else {\n cachedWidths = {};\n this.widths_[font] = cachedWidths;\n }\n\n const pathLength = lineStringLength(pixelCoordinates, begin, end, 2);\n const textLength =\n Math.abs(textScale[0]) *\n measureAndCacheTextWidth(font, text, cachedWidths);\n if (overflow || textLength <= pathLength) {\n const textAlign = this.textStates[textKey].textAlign;\n const startM = (pathLength - textLength) * TEXT_ALIGN[textAlign];\n const parts = drawTextOnPath(\n pixelCoordinates,\n begin,\n end,\n 2,\n text,\n startM,\n maxAngle,\n Math.abs(textScale[0]),\n measureAndCacheTextWidth,\n font,\n cachedWidths,\n viewRotationFromTransform ? 0 : this.viewRotation_\n );\n if (parts) {\n let rendered = false;\n let c, cc, chars, label, part;\n if (strokeKey) {\n for (c = 0, cc = parts.length; c < cc; ++c) {\n part = parts[c]; // x, y, anchorX, rotation, chunk\n chars = /** @type {string} */ (part[4]);\n label = this.createLabel(chars, textKey, '', strokeKey);\n anchorX = /** @type {number} */ (part[2]) + strokeWidth;\n anchorY =\n baseline * label.height +\n ((0.5 - baseline) * 2 * strokeWidth * textScale[1]) /\n textScale[0] -\n offsetY;\n rendered =\n this.replayImageOrLabel_(\n context,\n contextScale,\n /** @type {number} */ (part[0]),\n /** @type {number} */ (part[1]),\n label,\n anchorX,\n anchorY,\n declutterGroup,\n label.height,\n 1,\n 0,\n 0,\n /** @type {number} */ (part[3]),\n pixelRatioScale,\n false,\n label.width,\n defaultPadding,\n null,\n null\n ) || rendered;\n }\n }\n if (fillKey) {\n for (c = 0, cc = parts.length; c < cc; ++c) {\n part = parts[c]; // x, y, anchorX, rotation, chunk\n chars = /** @type {string} */ (part[4]);\n label = this.createLabel(chars, textKey, fillKey, '');\n anchorX = /** @type {number} */ (part[2]);\n anchorY = baseline * label.height - offsetY;\n rendered =\n this.replayImageOrLabel_(\n context,\n contextScale,\n /** @type {number} */ (part[0]),\n /** @type {number} */ (part[1]),\n label,\n anchorX,\n anchorY,\n declutterGroup,\n label.height,\n 1,\n 0,\n 0,\n /** @type {number} */ (part[3]),\n pixelRatioScale,\n false,\n label.width,\n defaultPadding,\n null,\n null\n ) || rendered;\n }\n }\n if (rendered) {\n this.declutterItems.push(this, declutterGroup, feature);\n }\n }\n }\n ++i;\n break;\n case CanvasInstruction.END_GEOMETRY:\n if (featureCallback !== undefined) {\n feature = /** @type {import(\"../../Feature.js\").FeatureLike} */ (instruction[1]);\n const result = featureCallback(feature);\n if (result) {\n return result;\n }\n }\n ++i;\n break;\n case CanvasInstruction.FILL:\n if (batchSize) {\n pendingFill++;\n } else {\n this.fill_(context);\n }\n ++i;\n break;\n case CanvasInstruction.MOVE_TO_LINE_TO:\n d = /** @type {number} */ (instruction[1]);\n dd = /** @type {number} */ (instruction[2]);\n x = pixelCoordinates[d];\n y = pixelCoordinates[d + 1];\n roundX = (x + 0.5) | 0;\n roundY = (y + 0.5) | 0;\n if (roundX !== prevX || roundY !== prevY) {\n context.moveTo(x, y);\n prevX = roundX;\n prevY = roundY;\n }\n for (d += 2; d < dd; d += 2) {\n x = pixelCoordinates[d];\n y = pixelCoordinates[d + 1];\n roundX = (x + 0.5) | 0;\n roundY = (y + 0.5) | 0;\n if (d == dd - 2 || roundX !== prevX || roundY !== prevY) {\n context.lineTo(x, y);\n prevX = roundX;\n prevY = roundY;\n }\n }\n ++i;\n break;\n case CanvasInstruction.SET_FILL_STYLE:\n lastFillInstruction = instruction;\n this.alignFill_ = instruction[2];\n\n if (pendingFill) {\n this.fill_(context);\n pendingFill = 0;\n if (pendingStroke) {\n context.stroke();\n pendingStroke = 0;\n }\n }\n\n context.fillStyle = /** @type {import(\"../../colorlike.js\").ColorLike} */ (instruction[1]);\n ++i;\n break;\n case CanvasInstruction.SET_STROKE_STYLE:\n lastStrokeInstruction = instruction;\n if (pendingStroke) {\n context.stroke();\n pendingStroke = 0;\n }\n this.setStrokeStyle_(context, /** @type {Array<*>} */ (instruction));\n ++i;\n break;\n case CanvasInstruction.STROKE:\n if (batchSize) {\n pendingStroke++;\n } else {\n context.stroke();\n }\n ++i;\n break;\n default:\n ++i; // consume the instruction anyway, to avoid an infinite loop\n break;\n }\n }\n if (pendingFill) {\n this.fill_(context);\n }\n if (pendingStroke) {\n context.stroke();\n }\n return undefined;\n }\n\n /**\n * @param {CanvasRenderingContext2D} context Context.\n * @param {number} contextScale Scale of the context.\n * @param {import(\"../../transform.js\").Transform} transform Transform.\n * @param {number} viewRotation View rotation.\n * @param {boolean} snapToPixel Snap point symbols and text to integer pixels.\n */\n execute(context, contextScale, transform, viewRotation, snapToPixel) {\n this.viewRotation_ = viewRotation;\n this.execute_(\n context,\n contextScale,\n transform,\n this.instructions,\n snapToPixel,\n undefined,\n undefined\n );\n }\n\n /**\n * @param {CanvasRenderingContext2D} context Context.\n * @param {import(\"../../transform.js\").Transform} transform Transform.\n * @param {number} viewRotation View rotation.\n * @param {function(import(\"../../Feature.js\").FeatureLike): T=} opt_featureCallback\n * Feature callback.\n * @param {import(\"../../extent.js\").Extent=} opt_hitExtent Only check features that intersect this\n * extent.\n * @return {T|undefined} Callback result.\n * @template T\n */\n executeHitDetection(\n context,\n transform,\n viewRotation,\n opt_featureCallback,\n opt_hitExtent\n ) {\n this.viewRotation_ = viewRotation;\n return this.execute_(\n context,\n 1,\n transform,\n this.hitDetectionInstructions,\n true,\n opt_featureCallback,\n opt_hitExtent\n );\n }\n}\n\nexport default Executor;\n","/**\n * @module ol/render/canvas/ExecutorGroup\n */\n\nimport BuilderType from './BuilderType.js';\nimport Executor from './Executor.js';\nimport {buffer, createEmpty, extendCoordinate} from '../../extent.js';\nimport {\n compose as composeTransform,\n create as createTransform,\n} from '../../transform.js';\nimport {createCanvasContext2D} from '../../dom.js';\nimport {isEmpty} from '../../obj.js';\nimport {numberSafeCompareFunction} from '../../array.js';\nimport {transform2D} from '../../geom/flat/transform.js';\n\n/**\n * @const\n * @type {Array<import(\"./BuilderType.js\").default>}\n */\nconst ORDER = [\n BuilderType.POLYGON,\n BuilderType.CIRCLE,\n BuilderType.LINE_STRING,\n BuilderType.IMAGE,\n BuilderType.TEXT,\n BuilderType.DEFAULT,\n];\n\nclass ExecutorGroup {\n /**\n * @param {import(\"../../extent.js\").Extent} maxExtent Max extent for clipping. When a\n * `maxExtent` was set on the Buillder for this executor group, the same `maxExtent`\n * should be set here, unless the target context does not exceet that extent (which\n * can be the case when rendering to tiles).\n * @param {number} resolution Resolution.\n * @param {number} pixelRatio Pixel ratio.\n * @param {boolean} overlaps The executor group can have overlapping geometries.\n * @param {!Object<string, !Object<import(\"./BuilderType.js\").default, import(\"./Builder.js\").SerializableInstructions>>} allInstructions\n * The serializable instructions.\n * @param {number=} opt_renderBuffer Optional rendering buffer.\n */\n constructor(\n maxExtent,\n resolution,\n pixelRatio,\n overlaps,\n allInstructions,\n opt_renderBuffer\n ) {\n /**\n * @private\n * @type {import(\"../../extent.js\").Extent}\n */\n this.maxExtent_ = maxExtent;\n\n /**\n * @private\n * @type {boolean}\n */\n this.overlaps_ = overlaps;\n\n /**\n * @private\n * @type {number}\n */\n this.pixelRatio_ = pixelRatio;\n\n /**\n * @private\n * @type {number}\n */\n this.resolution_ = resolution;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.renderBuffer_ = opt_renderBuffer;\n\n /**\n * @private\n * @type {!Object<string, !Object<import(\"./BuilderType.js\").default, import(\"./Executor\").default>>}\n */\n this.executorsByZIndex_ = {};\n\n /**\n * @private\n * @type {CanvasRenderingContext2D}\n */\n this.hitDetectionContext_ = null;\n\n /**\n * @private\n * @type {import(\"../../transform.js\").Transform}\n */\n this.hitDetectionTransform_ = createTransform();\n\n this.createExecutors_(allInstructions);\n }\n\n /**\n * @param {CanvasRenderingContext2D} context Context.\n * @param {import(\"../../transform.js\").Transform} transform Transform.\n */\n clip(context, transform) {\n const flatClipCoords = this.getClipCoords(transform);\n context.beginPath();\n context.moveTo(flatClipCoords[0], flatClipCoords[1]);\n context.lineTo(flatClipCoords[2], flatClipCoords[3]);\n context.lineTo(flatClipCoords[4], flatClipCoords[5]);\n context.lineTo(flatClipCoords[6], flatClipCoords[7]);\n context.clip();\n }\n\n /**\n * Create executors and populate them using the provided instructions.\n * @private\n * @param {!Object<string, !Object<import(\"./BuilderType.js\").default, import(\"./Builder.js\").SerializableInstructions>>} allInstructions The serializable instructions\n */\n createExecutors_(allInstructions) {\n for (const zIndex in allInstructions) {\n let executors = this.executorsByZIndex_[zIndex];\n if (executors === undefined) {\n executors = {};\n this.executorsByZIndex_[zIndex] = executors;\n }\n const instructionByZindex = allInstructions[zIndex];\n const renderBuffer = [this.renderBuffer_ || 0, this.renderBuffer_ || 0];\n for (const builderType in instructionByZindex) {\n const instructions = instructionByZindex[builderType];\n executors[builderType] = new Executor(\n this.resolution_,\n this.pixelRatio_,\n this.overlaps_,\n instructions,\n renderBuffer\n );\n }\n }\n }\n\n /**\n * @param {Array<import(\"./BuilderType.js\").default>} executors Executors.\n * @return {boolean} Has executors of the provided types.\n */\n hasExecutors(executors) {\n for (const zIndex in this.executorsByZIndex_) {\n const candidates = this.executorsByZIndex_[zIndex];\n for (let i = 0, ii = executors.length; i < ii; ++i) {\n if (executors[i] in candidates) {\n return true;\n }\n }\n }\n return false;\n }\n\n /**\n * @param {import(\"../../coordinate.js\").Coordinate} coordinate Coordinate.\n * @param {number} resolution Resolution.\n * @param {number} rotation Rotation.\n * @param {number} hitTolerance Hit tolerance in pixels.\n * @param {function(import(\"../../Feature.js\").FeatureLike): T} callback Feature callback.\n * @param {Array<import(\"../../Feature.js\").FeatureLike>} declutteredFeatures Decluttered features.\n * @return {T|undefined} Callback result.\n * @template T\n */\n forEachFeatureAtCoordinate(\n coordinate,\n resolution,\n rotation,\n hitTolerance,\n callback,\n declutteredFeatures\n ) {\n hitTolerance = Math.round(hitTolerance);\n const contextSize = hitTolerance * 2 + 1;\n const transform = composeTransform(\n this.hitDetectionTransform_,\n hitTolerance + 0.5,\n hitTolerance + 0.5,\n 1 / resolution,\n -1 / resolution,\n -rotation,\n -coordinate[0],\n -coordinate[1]\n );\n\n if (!this.hitDetectionContext_) {\n this.hitDetectionContext_ = createCanvasContext2D(\n contextSize,\n contextSize\n );\n }\n const context = this.hitDetectionContext_;\n\n if (\n context.canvas.width !== contextSize ||\n context.canvas.height !== contextSize\n ) {\n context.canvas.width = contextSize;\n context.canvas.height = contextSize;\n } else {\n context.clearRect(0, 0, contextSize, contextSize);\n }\n\n /**\n * @type {import(\"../../extent.js\").Extent}\n */\n let hitExtent;\n if (this.renderBuffer_ !== undefined) {\n hitExtent = createEmpty();\n extendCoordinate(hitExtent, coordinate);\n buffer(\n hitExtent,\n resolution * (this.renderBuffer_ + hitTolerance),\n hitExtent\n );\n }\n\n const mask = getCircleArray(hitTolerance);\n\n let builderType;\n\n /**\n * @param {import(\"../../Feature.js\").FeatureLike} feature Feature.\n * @return {?} Callback result.\n */\n function featureCallback(feature) {\n const imageData = context.getImageData(0, 0, contextSize, contextSize)\n .data;\n for (let i = 0; i < contextSize; i++) {\n for (let j = 0; j < contextSize; j++) {\n if (mask[i][j]) {\n if (imageData[(j * contextSize + i) * 4 + 3] > 0) {\n let result;\n if (\n !(\n declutteredFeatures &&\n (builderType == BuilderType.IMAGE ||\n builderType == BuilderType.TEXT)\n ) ||\n declutteredFeatures.indexOf(feature) !== -1\n ) {\n result = callback(feature);\n }\n if (result) {\n return result;\n } else {\n context.clearRect(0, 0, contextSize, contextSize);\n return undefined;\n }\n }\n }\n }\n }\n }\n\n /** @type {Array<number>} */\n const zs = Object.keys(this.executorsByZIndex_).map(Number);\n zs.sort(numberSafeCompareFunction);\n\n let i, j, executors, executor, result;\n for (i = zs.length - 1; i >= 0; --i) {\n const zIndexKey = zs[i].toString();\n executors = this.executorsByZIndex_[zIndexKey];\n for (j = ORDER.length - 1; j >= 0; --j) {\n builderType = ORDER[j];\n executor = executors[builderType];\n if (executor !== undefined) {\n result = executor.executeHitDetection(\n context,\n transform,\n rotation,\n featureCallback,\n hitExtent\n );\n if (result) {\n return result;\n }\n }\n }\n }\n return undefined;\n }\n\n /**\n * @param {import(\"../../transform.js\").Transform} transform Transform.\n * @return {Array<number>} Clip coordinates.\n */\n getClipCoords(transform) {\n const maxExtent = this.maxExtent_;\n if (!maxExtent) {\n return null;\n }\n const minX = maxExtent[0];\n const minY = maxExtent[1];\n const maxX = maxExtent[2];\n const maxY = maxExtent[3];\n const flatClipCoords = [minX, minY, minX, maxY, maxX, maxY, maxX, minY];\n transform2D(flatClipCoords, 0, 8, 2, transform, flatClipCoords);\n return flatClipCoords;\n }\n\n /**\n * @return {boolean} Is empty.\n */\n isEmpty() {\n return isEmpty(this.executorsByZIndex_);\n }\n\n /**\n * @param {CanvasRenderingContext2D} context Context.\n * @param {number} contextScale Scale of the context.\n * @param {import(\"../../transform.js\").Transform} transform Transform.\n * @param {number} viewRotation View rotation.\n * @param {boolean} snapToPixel Snap point symbols and test to integer pixel.\n * @param {Array<import(\"./BuilderType.js\").default>=} opt_builderTypes Ordered replay types to replay.\n * Default is {@link module:ol/render/replay~ORDER}\n * @param {Object<string, import(\"../canvas.js\").DeclutterGroup>=} opt_declutterReplays Declutter replays.\n */\n execute(\n context,\n contextScale,\n transform,\n viewRotation,\n snapToPixel,\n opt_builderTypes,\n opt_declutterReplays\n ) {\n /** @type {Array<number>} */\n const zs = Object.keys(this.executorsByZIndex_).map(Number);\n zs.sort(numberSafeCompareFunction);\n\n // setup clipping so that the parts of over-simplified geometries are not\n // visible outside the current extent when panning\n if (this.maxExtent_) {\n context.save();\n this.clip(context, transform);\n }\n\n const builderTypes = opt_builderTypes ? opt_builderTypes : ORDER;\n let i, ii, j, jj, replays, replay;\n for (i = 0, ii = zs.length; i < ii; ++i) {\n const zIndexKey = zs[i].toString();\n replays = this.executorsByZIndex_[zIndexKey];\n for (j = 0, jj = builderTypes.length; j < jj; ++j) {\n const builderType = builderTypes[j];\n replay = replays[builderType];\n if (replay !== undefined) {\n if (\n opt_declutterReplays &&\n (builderType == BuilderType.IMAGE ||\n builderType == BuilderType.TEXT)\n ) {\n const declutter = opt_declutterReplays[zIndexKey];\n if (!declutter) {\n opt_declutterReplays[zIndexKey] = [replay, transform.slice(0)];\n } else {\n declutter.push(replay, transform.slice(0));\n }\n } else {\n replay.execute(\n context,\n contextScale,\n transform,\n viewRotation,\n snapToPixel\n );\n }\n }\n }\n }\n\n if (this.maxExtent_) {\n context.restore();\n }\n }\n}\n\n/**\n * This cache is used for storing calculated pixel circles for increasing performance.\n * It is a static property to allow each Replaygroup to access it.\n * @type {Object<number, Array<Array<(boolean|undefined)>>>}\n */\nconst circleArrayCache = {\n 0: [[true]],\n};\n\n/**\n * This method fills a row in the array from the given coordinate to the\n * middle with `true`.\n * @param {Array<Array<(boolean|undefined)>>} array The array that will be altered.\n * @param {number} x X coordinate.\n * @param {number} y Y coordinate.\n */\nfunction fillCircleArrayRowToMiddle(array, x, y) {\n let i;\n const radius = Math.floor(array.length / 2);\n if (x >= radius) {\n for (i = radius; i < x; i++) {\n array[i][y] = true;\n }\n } else if (x < radius) {\n for (i = x + 1; i < radius; i++) {\n array[i][y] = true;\n }\n }\n}\n\n/**\n * This methods creates a circle inside a fitting array. Points inside the\n * circle are marked by true, points on the outside are undefined.\n * It uses the midpoint circle algorithm.\n * A cache is used to increase performance.\n * @param {number} radius Radius.\n * @returns {Array<Array<(boolean|undefined)>>} An array with marked circle points.\n */\nexport function getCircleArray(radius) {\n if (circleArrayCache[radius] !== undefined) {\n return circleArrayCache[radius];\n }\n\n const arraySize = radius * 2 + 1;\n const arr = new Array(arraySize);\n for (let i = 0; i < arraySize; i++) {\n arr[i] = new Array(arraySize);\n }\n\n let x = radius;\n let y = 0;\n let error = 0;\n\n while (x >= y) {\n fillCircleArrayRowToMiddle(arr, radius + x, radius + y);\n fillCircleArrayRowToMiddle(arr, radius + y, radius + x);\n fillCircleArrayRowToMiddle(arr, radius - y, radius + x);\n fillCircleArrayRowToMiddle(arr, radius - x, radius + y);\n fillCircleArrayRowToMiddle(arr, radius - x, radius - y);\n fillCircleArrayRowToMiddle(arr, radius - y, radius - x);\n fillCircleArrayRowToMiddle(arr, radius + y, radius - x);\n fillCircleArrayRowToMiddle(arr, radius + x, radius - y);\n\n y++;\n error += 1 + 2 * y;\n if (2 * (error - x) + 1 > 0) {\n x -= 1;\n error += 1 - 2 * x;\n }\n }\n\n circleArrayCache[radius] = arr;\n return arr;\n}\n\n/**\n * @param {!Object<string, Array<*>>} declutterReplays Declutter replays.\n * @param {CanvasRenderingContext2D} context Context.\n * @param {number} rotation Rotation.\n * @param {number} opacity Opacity.\n * @param {boolean} snapToPixel Snap point symbols and text to integer pixels.\n * @param {Array<import(\"../../PluggableMap.js\").DeclutterItems>} declutterItems Declutter items.\n */\nexport function replayDeclutter(\n declutterReplays,\n context,\n rotation,\n opacity,\n snapToPixel,\n declutterItems\n) {\n const zs = Object.keys(declutterReplays)\n .map(Number)\n .sort(numberSafeCompareFunction);\n for (let z = 0, zz = zs.length; z < zz; ++z) {\n const executorData = declutterReplays[zs[z].toString()];\n let currentExecutor;\n for (let i = 0, ii = executorData.length; i < ii; ) {\n const executor = executorData[i++];\n const transform = executorData[i++];\n executor.execute(context, 1, transform, rotation, snapToPixel);\n if (executor !== currentExecutor && executor.declutterItems.length > 0) {\n currentExecutor = executor;\n declutterItems.push({\n items: executor.declutterItems,\n opacity: opacity,\n });\n }\n }\n }\n}\n\nexport default ExecutorGroup;\n","/**\n * @module ol/ViewHint\n */\n\n/**\n * @enum {number}\n */\nexport default {\n ANIMATING: 0,\n INTERACTING: 1,\n};\n","/**\n * @module ol/render/canvas/Immediate\n */\n// FIXME test, especially polygons with holes and multipolygons\n// FIXME need to handle large thick features (where pixel size matters)\n// FIXME add offset and end to ol/geom/flat/transform~transform2D?\n\nimport GeometryType from '../../geom/GeometryType.js';\nimport VectorContext from '../VectorContext.js';\nimport {asColorLike} from '../../colorlike.js';\nimport {\n compose as composeTransform,\n create as createTransform,\n} from '../../transform.js';\nimport {\n defaultFillStyle,\n defaultFont,\n defaultLineCap,\n defaultLineDash,\n defaultLineDashOffset,\n defaultLineJoin,\n defaultLineWidth,\n defaultMiterLimit,\n defaultStrokeStyle,\n defaultTextAlign,\n defaultTextBaseline,\n} from '../canvas.js';\nimport {equals} from '../../array.js';\nimport {intersects} from '../../extent.js';\nimport {transform2D} from '../../geom/flat/transform.js';\nimport {transformGeom2D} from '../../geom/SimpleGeometry.js';\n\n/**\n * @classdesc\n * A concrete subclass of {@link module:ol/render/VectorContext} that implements\n * direct rendering of features and geometries to an HTML5 Canvas context.\n * Instances of this class are created internally by the library and\n * provided to application code as vectorContext member of the\n * {@link module:ol/render/Event~RenderEvent} object associated with postcompose, precompose and\n * render events emitted by layers and maps.\n */\nclass CanvasImmediateRenderer extends VectorContext {\n /**\n * @param {CanvasRenderingContext2D} context Context.\n * @param {number} pixelRatio Pixel ratio.\n * @param {import(\"../../extent.js\").Extent} extent Extent.\n * @param {import(\"../../transform.js\").Transform} transform Transform.\n * @param {number} viewRotation View rotation.\n * @param {number=} opt_squaredTolerance Optional squared tolerance for simplification.\n * @param {import(\"../../proj.js\").TransformFunction=} opt_userTransform Transform from user to view projection.\n */\n constructor(\n context,\n pixelRatio,\n extent,\n transform,\n viewRotation,\n opt_squaredTolerance,\n opt_userTransform\n ) {\n super();\n\n /**\n * @private\n * @type {CanvasRenderingContext2D}\n */\n this.context_ = context;\n\n /**\n * @private\n * @type {number}\n */\n this.pixelRatio_ = pixelRatio;\n\n /**\n * @private\n * @type {import(\"../../extent.js\").Extent}\n */\n this.extent_ = extent;\n\n /**\n * @private\n * @type {import(\"../../transform.js\").Transform}\n */\n this.transform_ = transform;\n\n /**\n * @private\n * @type {number}\n */\n this.viewRotation_ = viewRotation;\n\n /**\n * @private\n * @type {number}\n */\n this.squaredTolerance_ = opt_squaredTolerance;\n\n /**\n * @private\n * @type {import(\"../../proj.js\").TransformFunction}\n */\n this.userTransform_ = opt_userTransform;\n\n /**\n * @private\n * @type {?import(\"../canvas.js\").FillState}\n */\n this.contextFillState_ = null;\n\n /**\n * @private\n * @type {?import(\"../canvas.js\").StrokeState}\n */\n this.contextStrokeState_ = null;\n\n /**\n * @private\n * @type {?import(\"../canvas.js\").TextState}\n */\n this.contextTextState_ = null;\n\n /**\n * @private\n * @type {?import(\"../canvas.js\").FillState}\n */\n this.fillState_ = null;\n\n /**\n * @private\n * @type {?import(\"../canvas.js\").StrokeState}\n */\n this.strokeState_ = null;\n\n /**\n * @private\n * @type {HTMLCanvasElement|HTMLVideoElement|HTMLImageElement}\n */\n this.image_ = null;\n\n /**\n * @private\n * @type {number}\n */\n this.imageAnchorX_ = 0;\n\n /**\n * @private\n * @type {number}\n */\n this.imageAnchorY_ = 0;\n\n /**\n * @private\n * @type {number}\n */\n this.imageHeight_ = 0;\n\n /**\n * @private\n * @type {number}\n */\n this.imageOpacity_ = 0;\n\n /**\n * @private\n * @type {number}\n */\n this.imageOriginX_ = 0;\n\n /**\n * @private\n * @type {number}\n */\n this.imageOriginY_ = 0;\n\n /**\n * @private\n * @type {boolean}\n */\n this.imageRotateWithView_ = false;\n\n /**\n * @private\n * @type {number}\n */\n this.imageRotation_ = 0;\n\n /**\n * @private\n * @type {import(\"../../size.js\").Size}\n */\n this.imageScale_ = [0, 0];\n\n /**\n * @private\n * @type {number}\n */\n this.imageWidth_ = 0;\n\n /**\n * @private\n * @type {string}\n */\n this.text_ = '';\n\n /**\n * @private\n * @type {number}\n */\n this.textOffsetX_ = 0;\n\n /**\n * @private\n * @type {number}\n */\n this.textOffsetY_ = 0;\n\n /**\n * @private\n * @type {boolean}\n */\n this.textRotateWithView_ = false;\n\n /**\n * @private\n * @type {number}\n */\n this.textRotation_ = 0;\n\n /**\n * @private\n * @type {import(\"../../size.js\").Size}\n */\n this.textScale_ = [0, 0];\n\n /**\n * @private\n * @type {?import(\"../canvas.js\").FillState}\n */\n this.textFillState_ = null;\n\n /**\n * @private\n * @type {?import(\"../canvas.js\").StrokeState}\n */\n this.textStrokeState_ = null;\n\n /**\n * @private\n * @type {?import(\"../canvas.js\").TextState}\n */\n this.textState_ = null;\n\n /**\n * @private\n * @type {Array<number>}\n */\n this.pixelCoordinates_ = [];\n\n /**\n * @private\n * @type {import(\"../../transform.js\").Transform}\n */\n this.tmpLocalTransform_ = createTransform();\n }\n\n /**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @private\n */\n drawImages_(flatCoordinates, offset, end, stride) {\n if (!this.image_) {\n return;\n }\n const pixelCoordinates = transform2D(\n flatCoordinates,\n offset,\n end,\n 2,\n this.transform_,\n this.pixelCoordinates_\n );\n const context = this.context_;\n const localTransform = this.tmpLocalTransform_;\n const alpha = context.globalAlpha;\n if (this.imageOpacity_ != 1) {\n context.globalAlpha = alpha * this.imageOpacity_;\n }\n let rotation = this.imageRotation_;\n if (this.imageRotateWithView_) {\n rotation += this.viewRotation_;\n }\n for (let i = 0, ii = pixelCoordinates.length; i < ii; i += 2) {\n const x = pixelCoordinates[i] - this.imageAnchorX_;\n const y = pixelCoordinates[i + 1] - this.imageAnchorY_;\n if (\n rotation !== 0 ||\n this.imageScale_[0] != 1 ||\n this.imageScale_[1] != 1\n ) {\n const centerX = x + this.imageAnchorX_;\n const centerY = y + this.imageAnchorY_;\n composeTransform(\n localTransform,\n centerX,\n centerY,\n 1,\n 1,\n rotation,\n -centerX,\n -centerY\n );\n context.setTransform.apply(context, localTransform);\n context.translate(centerX, centerY);\n context.scale(this.imageScale_[0], this.imageScale_[1]);\n context.drawImage(\n this.image_,\n this.imageOriginX_,\n this.imageOriginY_,\n this.imageWidth_,\n this.imageHeight_,\n -this.imageAnchorX_,\n -this.imageAnchorY_,\n this.imageWidth_,\n this.imageHeight_\n );\n context.setTransform(1, 0, 0, 1, 0, 0);\n } else {\n context.drawImage(\n this.image_,\n this.imageOriginX_,\n this.imageOriginY_,\n this.imageWidth_,\n this.imageHeight_,\n x,\n y,\n this.imageWidth_,\n this.imageHeight_\n );\n }\n }\n if (this.imageOpacity_ != 1) {\n context.globalAlpha = alpha;\n }\n }\n\n /**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @private\n */\n drawText_(flatCoordinates, offset, end, stride) {\n if (!this.textState_ || this.text_ === '') {\n return;\n }\n if (this.textFillState_) {\n this.setContextFillState_(this.textFillState_);\n }\n if (this.textStrokeState_) {\n this.setContextStrokeState_(this.textStrokeState_);\n }\n this.setContextTextState_(this.textState_);\n const pixelCoordinates = transform2D(\n flatCoordinates,\n offset,\n end,\n stride,\n this.transform_,\n this.pixelCoordinates_\n );\n const context = this.context_;\n let rotation = this.textRotation_;\n if (this.textRotateWithView_) {\n rotation += this.viewRotation_;\n }\n for (; offset < end; offset += stride) {\n const x = pixelCoordinates[offset] + this.textOffsetX_;\n const y = pixelCoordinates[offset + 1] + this.textOffsetY_;\n if (\n rotation !== 0 ||\n this.textScale_[0] != 1 ||\n this.textScale_[1] != 1\n ) {\n const localTransform = composeTransform(\n this.tmpLocalTransform_,\n x,\n y,\n 1,\n 1,\n rotation,\n -x,\n -y\n );\n context.setTransform.apply(context, localTransform);\n context.translate(x, y);\n context.scale(this.textScale_[0], this.textScale_[1]);\n if (this.textStrokeState_) {\n context.strokeText(this.text_, 0, 0);\n }\n if (this.textFillState_) {\n context.fillText(this.text_, 0, 0);\n }\n context.setTransform(1, 0, 0, 1, 0, 0);\n } else {\n if (this.textStrokeState_) {\n context.strokeText(this.text_, x, y);\n }\n if (this.textFillState_) {\n context.fillText(this.text_, x, y);\n }\n }\n }\n }\n\n /**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {boolean} close Close.\n * @private\n * @return {number} end End.\n */\n moveToLineTo_(flatCoordinates, offset, end, stride, close) {\n const context = this.context_;\n const pixelCoordinates = transform2D(\n flatCoordinates,\n offset,\n end,\n stride,\n this.transform_,\n this.pixelCoordinates_\n );\n context.moveTo(pixelCoordinates[0], pixelCoordinates[1]);\n let length = pixelCoordinates.length;\n if (close) {\n length -= 2;\n }\n for (let i = 2; i < length; i += 2) {\n context.lineTo(pixelCoordinates[i], pixelCoordinates[i + 1]);\n }\n if (close) {\n context.closePath();\n }\n return end;\n }\n\n /**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array<number>} ends Ends.\n * @param {number} stride Stride.\n * @private\n * @return {number} End.\n */\n drawRings_(flatCoordinates, offset, ends, stride) {\n for (let i = 0, ii = ends.length; i < ii; ++i) {\n offset = this.moveToLineTo_(\n flatCoordinates,\n offset,\n ends[i],\n stride,\n true\n );\n }\n return offset;\n }\n\n /**\n * Render a circle geometry into the canvas. Rendering is immediate and uses\n * the current fill and stroke styles.\n *\n * @param {import(\"../../geom/Circle.js\").default} geometry Circle geometry.\n * @api\n */\n drawCircle(geometry) {\n if (!intersects(this.extent_, geometry.getExtent())) {\n return;\n }\n if (this.fillState_ || this.strokeState_) {\n if (this.fillState_) {\n this.setContextFillState_(this.fillState_);\n }\n if (this.strokeState_) {\n this.setContextStrokeState_(this.strokeState_);\n }\n const pixelCoordinates = transformGeom2D(\n geometry,\n this.transform_,\n this.pixelCoordinates_\n );\n const dx = pixelCoordinates[2] - pixelCoordinates[0];\n const dy = pixelCoordinates[3] - pixelCoordinates[1];\n const radius = Math.sqrt(dx * dx + dy * dy);\n const context = this.context_;\n context.beginPath();\n context.arc(\n pixelCoordinates[0],\n pixelCoordinates[1],\n radius,\n 0,\n 2 * Math.PI\n );\n if (this.fillState_) {\n context.fill();\n }\n if (this.strokeState_) {\n context.stroke();\n }\n }\n if (this.text_ !== '') {\n this.drawText_(geometry.getCenter(), 0, 2, 2);\n }\n }\n\n /**\n * Set the rendering style. Note that since this is an immediate rendering API,\n * any `zIndex` on the provided style will be ignored.\n *\n * @param {import(\"../../style/Style.js\").default} style The rendering style.\n * @api\n */\n setStyle(style) {\n this.setFillStrokeStyle(style.getFill(), style.getStroke());\n this.setImageStyle(style.getImage());\n this.setTextStyle(style.getText());\n }\n\n /**\n * @param {import(\"../../transform.js\").Transform} transform Transform.\n */\n setTransform(transform) {\n this.transform_ = transform;\n }\n\n /**\n * Render a geometry into the canvas. Call\n * {@link module:ol/render/canvas/Immediate#setStyle} first to set the rendering style.\n *\n * @param {import(\"../../geom/Geometry.js\").default|import(\"../Feature.js\").default} geometry The geometry to render.\n * @api\n */\n drawGeometry(geometry) {\n const type = geometry.getType();\n switch (type) {\n case GeometryType.POINT:\n this.drawPoint(\n /** @type {import(\"../../geom/Point.js\").default} */ (geometry)\n );\n break;\n case GeometryType.LINE_STRING:\n this.drawLineString(\n /** @type {import(\"../../geom/LineString.js\").default} */ (geometry)\n );\n break;\n case GeometryType.POLYGON:\n this.drawPolygon(\n /** @type {import(\"../../geom/Polygon.js\").default} */ (geometry)\n );\n break;\n case GeometryType.MULTI_POINT:\n this.drawMultiPoint(\n /** @type {import(\"../../geom/MultiPoint.js\").default} */ (geometry)\n );\n break;\n case GeometryType.MULTI_LINE_STRING:\n this.drawMultiLineString(\n /** @type {import(\"../../geom/MultiLineString.js\").default} */ (geometry)\n );\n break;\n case GeometryType.MULTI_POLYGON:\n this.drawMultiPolygon(\n /** @type {import(\"../../geom/MultiPolygon.js\").default} */ (geometry)\n );\n break;\n case GeometryType.GEOMETRY_COLLECTION:\n this.drawGeometryCollection(\n /** @type {import(\"../../geom/GeometryCollection.js\").default} */ (geometry)\n );\n break;\n case GeometryType.CIRCLE:\n this.drawCircle(\n /** @type {import(\"../../geom/Circle.js\").default} */ (geometry)\n );\n break;\n default:\n }\n }\n\n /**\n * Render a feature into the canvas. Note that any `zIndex` on the provided\n * style will be ignored - features are rendered immediately in the order that\n * this method is called. If you need `zIndex` support, you should be using an\n * {@link module:ol/layer/Vector~VectorLayer} instead.\n *\n * @param {import(\"../../Feature.js\").default} feature Feature.\n * @param {import(\"../../style/Style.js\").default} style Style.\n * @api\n */\n drawFeature(feature, style) {\n const geometry = style.getGeometryFunction()(feature);\n if (!geometry || !intersects(this.extent_, geometry.getExtent())) {\n return;\n }\n this.setStyle(style);\n this.drawGeometry(geometry);\n }\n\n /**\n * Render a GeometryCollection to the canvas. Rendering is immediate and\n * uses the current styles appropriate for each geometry in the collection.\n *\n * @param {import(\"../../geom/GeometryCollection.js\").default} geometry Geometry collection.\n */\n drawGeometryCollection(geometry) {\n const geometries = geometry.getGeometriesArray();\n for (let i = 0, ii = geometries.length; i < ii; ++i) {\n this.drawGeometry(geometries[i]);\n }\n }\n\n /**\n * Render a Point geometry into the canvas. Rendering is immediate and uses\n * the current style.\n *\n * @param {import(\"../../geom/Point.js\").default|import(\"../Feature.js\").default} geometry Point geometry.\n */\n drawPoint(geometry) {\n if (this.squaredTolerance_) {\n geometry = /** @type {import(\"../../geom/Point.js\").default} */ (geometry.simplifyTransformed(\n this.squaredTolerance_,\n this.userTransform_\n ));\n }\n const flatCoordinates = geometry.getFlatCoordinates();\n const stride = geometry.getStride();\n if (this.image_) {\n this.drawImages_(flatCoordinates, 0, flatCoordinates.length, stride);\n }\n if (this.text_ !== '') {\n this.drawText_(flatCoordinates, 0, flatCoordinates.length, stride);\n }\n }\n\n /**\n * Render a MultiPoint geometry into the canvas. Rendering is immediate and\n * uses the current style.\n *\n * @param {import(\"../../geom/MultiPoint.js\").default|import(\"../Feature.js\").default} geometry MultiPoint geometry.\n */\n drawMultiPoint(geometry) {\n if (this.squaredTolerance_) {\n geometry = /** @type {import(\"../../geom/MultiPoint.js\").default} */ (geometry.simplifyTransformed(\n this.squaredTolerance_,\n this.userTransform_\n ));\n }\n const flatCoordinates = geometry.getFlatCoordinates();\n const stride = geometry.getStride();\n if (this.image_) {\n this.drawImages_(flatCoordinates, 0, flatCoordinates.length, stride);\n }\n if (this.text_ !== '') {\n this.drawText_(flatCoordinates, 0, flatCoordinates.length, stride);\n }\n }\n\n /**\n * Render a LineString into the canvas. Rendering is immediate and uses\n * the current style.\n *\n * @param {import(\"../../geom/LineString.js\").default|import(\"../Feature.js\").default} geometry LineString geometry.\n */\n drawLineString(geometry) {\n if (this.squaredTolerance_) {\n geometry = /** @type {import(\"../../geom/LineString.js\").default} */ (geometry.simplifyTransformed(\n this.squaredTolerance_,\n this.userTransform_\n ));\n }\n if (!intersects(this.extent_, geometry.getExtent())) {\n return;\n }\n if (this.strokeState_) {\n this.setContextStrokeState_(this.strokeState_);\n const context = this.context_;\n const flatCoordinates = geometry.getFlatCoordinates();\n context.beginPath();\n this.moveToLineTo_(\n flatCoordinates,\n 0,\n flatCoordinates.length,\n geometry.getStride(),\n false\n );\n context.stroke();\n }\n if (this.text_ !== '') {\n const flatMidpoint = geometry.getFlatMidpoint();\n this.drawText_(flatMidpoint, 0, 2, 2);\n }\n }\n\n /**\n * Render a MultiLineString geometry into the canvas. Rendering is immediate\n * and uses the current style.\n *\n * @param {import(\"../../geom/MultiLineString.js\").default|import(\"../Feature.js\").default} geometry MultiLineString geometry.\n */\n drawMultiLineString(geometry) {\n if (this.squaredTolerance_) {\n geometry = /** @type {import(\"../../geom/MultiLineString.js\").default} */ (geometry.simplifyTransformed(\n this.squaredTolerance_,\n this.userTransform_\n ));\n }\n const geometryExtent = geometry.getExtent();\n if (!intersects(this.extent_, geometryExtent)) {\n return;\n }\n if (this.strokeState_) {\n this.setContextStrokeState_(this.strokeState_);\n const context = this.context_;\n const flatCoordinates = geometry.getFlatCoordinates();\n let offset = 0;\n const ends = /** @type {Array<number>} */ (geometry.getEnds());\n const stride = geometry.getStride();\n context.beginPath();\n for (let i = 0, ii = ends.length; i < ii; ++i) {\n offset = this.moveToLineTo_(\n flatCoordinates,\n offset,\n ends[i],\n stride,\n false\n );\n }\n context.stroke();\n }\n if (this.text_ !== '') {\n const flatMidpoints = geometry.getFlatMidpoints();\n this.drawText_(flatMidpoints, 0, flatMidpoints.length, 2);\n }\n }\n\n /**\n * Render a Polygon geometry into the canvas. Rendering is immediate and uses\n * the current style.\n *\n * @param {import(\"../../geom/Polygon.js\").default|import(\"../Feature.js\").default} geometry Polygon geometry.\n */\n drawPolygon(geometry) {\n if (this.squaredTolerance_) {\n geometry = /** @type {import(\"../../geom/Polygon.js\").default} */ (geometry.simplifyTransformed(\n this.squaredTolerance_,\n this.userTransform_\n ));\n }\n if (!intersects(this.extent_, geometry.getExtent())) {\n return;\n }\n if (this.strokeState_ || this.fillState_) {\n if (this.fillState_) {\n this.setContextFillState_(this.fillState_);\n }\n if (this.strokeState_) {\n this.setContextStrokeState_(this.strokeState_);\n }\n const context = this.context_;\n context.beginPath();\n this.drawRings_(\n geometry.getOrientedFlatCoordinates(),\n 0,\n /** @type {Array<number>} */ (geometry.getEnds()),\n geometry.getStride()\n );\n if (this.fillState_) {\n context.fill();\n }\n if (this.strokeState_) {\n context.stroke();\n }\n }\n if (this.text_ !== '') {\n const flatInteriorPoint = geometry.getFlatInteriorPoint();\n this.drawText_(flatInteriorPoint, 0, 2, 2);\n }\n }\n\n /**\n * Render MultiPolygon geometry into the canvas. Rendering is immediate and\n * uses the current style.\n * @param {import(\"../../geom/MultiPolygon.js\").default} geometry MultiPolygon geometry.\n */\n drawMultiPolygon(geometry) {\n if (this.squaredTolerance_) {\n geometry = /** @type {import(\"../../geom/MultiPolygon.js\").default} */ (geometry.simplifyTransformed(\n this.squaredTolerance_,\n this.userTransform_\n ));\n }\n if (!intersects(this.extent_, geometry.getExtent())) {\n return;\n }\n if (this.strokeState_ || this.fillState_) {\n if (this.fillState_) {\n this.setContextFillState_(this.fillState_);\n }\n if (this.strokeState_) {\n this.setContextStrokeState_(this.strokeState_);\n }\n const context = this.context_;\n const flatCoordinates = geometry.getOrientedFlatCoordinates();\n let offset = 0;\n const endss = geometry.getEndss();\n const stride = geometry.getStride();\n context.beginPath();\n for (let i = 0, ii = endss.length; i < ii; ++i) {\n const ends = endss[i];\n offset = this.drawRings_(flatCoordinates, offset, ends, stride);\n }\n if (this.fillState_) {\n context.fill();\n }\n if (this.strokeState_) {\n context.stroke();\n }\n }\n if (this.text_ !== '') {\n const flatInteriorPoints = geometry.getFlatInteriorPoints();\n this.drawText_(flatInteriorPoints, 0, flatInteriorPoints.length, 2);\n }\n }\n\n /**\n * @param {import(\"../canvas.js\").FillState} fillState Fill state.\n * @private\n */\n setContextFillState_(fillState) {\n const context = this.context_;\n const contextFillState = this.contextFillState_;\n if (!contextFillState) {\n context.fillStyle = fillState.fillStyle;\n this.contextFillState_ = {\n fillStyle: fillState.fillStyle,\n };\n } else {\n if (contextFillState.fillStyle != fillState.fillStyle) {\n contextFillState.fillStyle = fillState.fillStyle;\n context.fillStyle = fillState.fillStyle;\n }\n }\n }\n\n /**\n * @param {import(\"../canvas.js\").StrokeState} strokeState Stroke state.\n * @private\n */\n setContextStrokeState_(strokeState) {\n const context = this.context_;\n const contextStrokeState = this.contextStrokeState_;\n if (!contextStrokeState) {\n context.lineCap = strokeState.lineCap;\n if (context.setLineDash) {\n context.setLineDash(strokeState.lineDash);\n context.lineDashOffset = strokeState.lineDashOffset;\n }\n context.lineJoin = strokeState.lineJoin;\n context.lineWidth = strokeState.lineWidth;\n context.miterLimit = strokeState.miterLimit;\n context.strokeStyle = strokeState.strokeStyle;\n this.contextStrokeState_ = {\n lineCap: strokeState.lineCap,\n lineDash: strokeState.lineDash,\n lineDashOffset: strokeState.lineDashOffset,\n lineJoin: strokeState.lineJoin,\n lineWidth: strokeState.lineWidth,\n miterLimit: strokeState.miterLimit,\n strokeStyle: strokeState.strokeStyle,\n };\n } else {\n if (contextStrokeState.lineCap != strokeState.lineCap) {\n contextStrokeState.lineCap = strokeState.lineCap;\n context.lineCap = strokeState.lineCap;\n }\n if (context.setLineDash) {\n if (!equals(contextStrokeState.lineDash, strokeState.lineDash)) {\n context.setLineDash(\n (contextStrokeState.lineDash = strokeState.lineDash)\n );\n }\n if (contextStrokeState.lineDashOffset != strokeState.lineDashOffset) {\n contextStrokeState.lineDashOffset = strokeState.lineDashOffset;\n context.lineDashOffset = strokeState.lineDashOffset;\n }\n }\n if (contextStrokeState.lineJoin != strokeState.lineJoin) {\n contextStrokeState.lineJoin = strokeState.lineJoin;\n context.lineJoin = strokeState.lineJoin;\n }\n if (contextStrokeState.lineWidth != strokeState.lineWidth) {\n contextStrokeState.lineWidth = strokeState.lineWidth;\n context.lineWidth = strokeState.lineWidth;\n }\n if (contextStrokeState.miterLimit != strokeState.miterLimit) {\n contextStrokeState.miterLimit = strokeState.miterLimit;\n context.miterLimit = strokeState.miterLimit;\n }\n if (contextStrokeState.strokeStyle != strokeState.strokeStyle) {\n contextStrokeState.strokeStyle = strokeState.strokeStyle;\n context.strokeStyle = strokeState.strokeStyle;\n }\n }\n }\n\n /**\n * @param {import(\"../canvas.js\").TextState} textState Text state.\n * @private\n */\n setContextTextState_(textState) {\n const context = this.context_;\n const contextTextState = this.contextTextState_;\n const textAlign = textState.textAlign\n ? textState.textAlign\n : defaultTextAlign;\n if (!contextTextState) {\n context.font = textState.font;\n context.textAlign = /** @type {CanvasTextAlign} */ (textAlign);\n context.textBaseline = /** @type {CanvasTextBaseline} */ (textState.textBaseline);\n this.contextTextState_ = {\n font: textState.font,\n textAlign: textAlign,\n textBaseline: textState.textBaseline,\n };\n } else {\n if (contextTextState.font != textState.font) {\n contextTextState.font = textState.font;\n context.font = textState.font;\n }\n if (contextTextState.textAlign != textAlign) {\n contextTextState.textAlign = /** @type {CanvasTextAlign} */ (textAlign);\n context.textAlign = /** @type {CanvasTextAlign} */ (textAlign);\n }\n if (contextTextState.textBaseline != textState.textBaseline) {\n contextTextState.textBaseline = /** @type {CanvasTextBaseline} */ (textState.textBaseline);\n context.textBaseline = /** @type {CanvasTextBaseline} */ (textState.textBaseline);\n }\n }\n }\n\n /**\n * Set the fill and stroke style for subsequent draw operations. To clear\n * either fill or stroke styles, pass null for the appropriate parameter.\n *\n * @param {import(\"../../style/Fill.js\").default} fillStyle Fill style.\n * @param {import(\"../../style/Stroke.js\").default} strokeStyle Stroke style.\n */\n setFillStrokeStyle(fillStyle, strokeStyle) {\n if (!fillStyle) {\n this.fillState_ = null;\n } else {\n const fillStyleColor = fillStyle.getColor();\n this.fillState_ = {\n fillStyle: asColorLike(\n fillStyleColor ? fillStyleColor : defaultFillStyle\n ),\n };\n }\n if (!strokeStyle) {\n this.strokeState_ = null;\n } else {\n const strokeStyleColor = strokeStyle.getColor();\n const strokeStyleLineCap = strokeStyle.getLineCap();\n const strokeStyleLineDash = strokeStyle.getLineDash();\n const strokeStyleLineDashOffset = strokeStyle.getLineDashOffset();\n const strokeStyleLineJoin = strokeStyle.getLineJoin();\n const strokeStyleWidth = strokeStyle.getWidth();\n const strokeStyleMiterLimit = strokeStyle.getMiterLimit();\n this.strokeState_ = {\n lineCap:\n strokeStyleLineCap !== undefined\n ? strokeStyleLineCap\n : defaultLineCap,\n lineDash: strokeStyleLineDash ? strokeStyleLineDash : defaultLineDash,\n lineDashOffset: strokeStyleLineDashOffset\n ? strokeStyleLineDashOffset\n : defaultLineDashOffset,\n lineJoin:\n strokeStyleLineJoin !== undefined\n ? strokeStyleLineJoin\n : defaultLineJoin,\n lineWidth:\n this.pixelRatio_ *\n (strokeStyleWidth !== undefined\n ? strokeStyleWidth\n : defaultLineWidth),\n miterLimit:\n strokeStyleMiterLimit !== undefined\n ? strokeStyleMiterLimit\n : defaultMiterLimit,\n strokeStyle: asColorLike(\n strokeStyleColor ? strokeStyleColor : defaultStrokeStyle\n ),\n };\n }\n }\n\n /**\n * Set the image style for subsequent draw operations. Pass null to remove\n * the image style.\n *\n * @param {import(\"../../style/Image.js\").default} imageStyle Image style.\n */\n setImageStyle(imageStyle) {\n if (!imageStyle) {\n this.image_ = null;\n } else {\n const imageSize = imageStyle.getSize();\n if (!imageSize) {\n this.image_ = null;\n } else {\n const imageAnchor = imageStyle.getAnchor();\n // FIXME pixel ratio\n const imageImage = imageStyle.getImage(1);\n const imageOrigin = imageStyle.getOrigin();\n const imageScale = imageStyle.getScaleArray();\n this.imageAnchorX_ = imageAnchor[0];\n this.imageAnchorY_ = imageAnchor[1];\n this.imageHeight_ = imageSize[1];\n this.image_ = imageImage;\n this.imageOpacity_ = imageStyle.getOpacity();\n this.imageOriginX_ = imageOrigin[0];\n this.imageOriginY_ = imageOrigin[1];\n this.imageRotateWithView_ = imageStyle.getRotateWithView();\n this.imageRotation_ = imageStyle.getRotation();\n this.imageScale_ = [\n this.pixelRatio_ * imageScale[0],\n this.pixelRatio_ * imageScale[1],\n ];\n this.imageWidth_ = imageSize[0];\n }\n }\n }\n\n /**\n * Set the text style for subsequent draw operations. Pass null to\n * remove the text style.\n *\n * @param {import(\"../../style/Text.js\").default} textStyle Text style.\n */\n setTextStyle(textStyle) {\n if (!textStyle) {\n this.text_ = '';\n } else {\n const textFillStyle = textStyle.getFill();\n if (!textFillStyle) {\n this.textFillState_ = null;\n } else {\n const textFillStyleColor = textFillStyle.getColor();\n this.textFillState_ = {\n fillStyle: asColorLike(\n textFillStyleColor ? textFillStyleColor : defaultFillStyle\n ),\n };\n }\n const textStrokeStyle = textStyle.getStroke();\n if (!textStrokeStyle) {\n this.textStrokeState_ = null;\n } else {\n const textStrokeStyleColor = textStrokeStyle.getColor();\n const textStrokeStyleLineCap = textStrokeStyle.getLineCap();\n const textStrokeStyleLineDash = textStrokeStyle.getLineDash();\n const textStrokeStyleLineDashOffset = textStrokeStyle.getLineDashOffset();\n const textStrokeStyleLineJoin = textStrokeStyle.getLineJoin();\n const textStrokeStyleWidth = textStrokeStyle.getWidth();\n const textStrokeStyleMiterLimit = textStrokeStyle.getMiterLimit();\n this.textStrokeState_ = {\n lineCap:\n textStrokeStyleLineCap !== undefined\n ? textStrokeStyleLineCap\n : defaultLineCap,\n lineDash: textStrokeStyleLineDash\n ? textStrokeStyleLineDash\n : defaultLineDash,\n lineDashOffset: textStrokeStyleLineDashOffset\n ? textStrokeStyleLineDashOffset\n : defaultLineDashOffset,\n lineJoin:\n textStrokeStyleLineJoin !== undefined\n ? textStrokeStyleLineJoin\n : defaultLineJoin,\n lineWidth:\n textStrokeStyleWidth !== undefined\n ? textStrokeStyleWidth\n : defaultLineWidth,\n miterLimit:\n textStrokeStyleMiterLimit !== undefined\n ? textStrokeStyleMiterLimit\n : defaultMiterLimit,\n strokeStyle: asColorLike(\n textStrokeStyleColor ? textStrokeStyleColor : defaultStrokeStyle\n ),\n };\n }\n const textFont = textStyle.getFont();\n const textOffsetX = textStyle.getOffsetX();\n const textOffsetY = textStyle.getOffsetY();\n const textRotateWithView = textStyle.getRotateWithView();\n const textRotation = textStyle.getRotation();\n const textScale = textStyle.getScaleArray();\n const textText = textStyle.getText();\n const textTextAlign = textStyle.getTextAlign();\n const textTextBaseline = textStyle.getTextBaseline();\n this.textState_ = {\n font: textFont !== undefined ? textFont : defaultFont,\n textAlign:\n textTextAlign !== undefined ? textTextAlign : defaultTextAlign,\n textBaseline:\n textTextBaseline !== undefined\n ? textTextBaseline\n : defaultTextBaseline,\n };\n this.text_ = textText !== undefined ? textText : '';\n this.textOffsetX_ =\n textOffsetX !== undefined ? this.pixelRatio_ * textOffsetX : 0;\n this.textOffsetY_ =\n textOffsetY !== undefined ? this.pixelRatio_ * textOffsetY : 0;\n this.textRotateWithView_ =\n textRotateWithView !== undefined ? textRotateWithView : false;\n this.textRotation_ = textRotation !== undefined ? textRotation : 0;\n this.textScale_ = [\n this.pixelRatio_ * textScale[0],\n this.pixelRatio_ * textScale[1],\n ];\n }\n }\n}\n\nexport default CanvasImmediateRenderer;\n","/**\n * @module ol/style/IconAnchorUnits\n */\n\n/**\n * Icon anchor units. One of 'fraction', 'pixels'.\n * @enum {string}\n */\nexport default {\n /**\n * Anchor is a fraction\n * @api\n */\n FRACTION: 'fraction',\n /**\n * Anchor is in pixels\n * @api\n */\n PIXELS: 'pixels',\n};\n","/**\n * @module ol/style/IconOrigin\n */\n\n/**\n * Icon origin. One of 'bottom-left', 'bottom-right', 'top-left', 'top-right'.\n * @enum {string}\n */\nexport default {\n /**\n * Origin is at bottom left\n * @api\n */\n BOTTOM_LEFT: 'bottom-left',\n /**\n * Origin is at bottom right\n * @api\n */\n BOTTOM_RIGHT: 'bottom-right',\n /**\n * Origin is at top left\n * @api\n */\n TOP_LEFT: 'top-left',\n /**\n * Origin is at top right\n * @api\n */\n TOP_RIGHT: 'top-right',\n};\n","/**\n * @module ol/style/IconImageCache\n */\nimport {asString} from '../color.js';\n\n/**\n * @classdesc\n * Singleton class. Available through {@link module:ol/style/IconImageCache~shared}.\n */\nclass IconImageCache {\n constructor() {\n /**\n * @type {!Object<string, import(\"./IconImage.js\").default>}\n * @private\n */\n this.cache_ = {};\n\n /**\n * @type {number}\n * @private\n */\n this.cacheSize_ = 0;\n\n /**\n * @type {number}\n * @private\n */\n this.maxCacheSize_ = 32;\n }\n\n /**\n * FIXME empty description for jsdoc\n */\n clear() {\n this.cache_ = {};\n this.cacheSize_ = 0;\n }\n\n /**\n * @return {boolean} Can expire cache.\n */\n canExpireCache() {\n return this.cacheSize_ > this.maxCacheSize_;\n }\n\n /**\n * FIXME empty description for jsdoc\n */\n expire() {\n if (this.canExpireCache()) {\n let i = 0;\n for (const key in this.cache_) {\n const iconImage = this.cache_[key];\n if ((i++ & 3) === 0 && !iconImage.hasListener()) {\n delete this.cache_[key];\n --this.cacheSize_;\n }\n }\n }\n }\n\n /**\n * @param {string} src Src.\n * @param {?string} crossOrigin Cross origin.\n * @param {import(\"../color.js\").Color} color Color.\n * @return {import(\"./IconImage.js\").default} Icon image.\n */\n get(src, crossOrigin, color) {\n const key = getKey(src, crossOrigin, color);\n return key in this.cache_ ? this.cache_[key] : null;\n }\n\n /**\n * @param {string} src Src.\n * @param {?string} crossOrigin Cross origin.\n * @param {import(\"../color.js\").Color} color Color.\n * @param {import(\"./IconImage.js\").default} iconImage Icon image.\n */\n set(src, crossOrigin, color, iconImage) {\n const key = getKey(src, crossOrigin, color);\n this.cache_[key] = iconImage;\n ++this.cacheSize_;\n }\n\n /**\n * Set the cache size of the icon cache. Default is `32`. Change this value when\n * your map uses more than 32 different icon images and you are not caching icon\n * styles on the application level.\n * @param {number} maxCacheSize Cache max size.\n * @api\n */\n setSize(maxCacheSize) {\n this.maxCacheSize_ = maxCacheSize;\n this.expire();\n }\n}\n\n/**\n * @param {string} src Src.\n * @param {?string} crossOrigin Cross origin.\n * @param {import(\"../color.js\").Color} color Color.\n * @return {string} Cache key.\n */\nfunction getKey(src, crossOrigin, color) {\n const colorString = color ? asString(color) : 'null';\n return crossOrigin + ':' + src + ':' + colorString;\n}\n\nexport default IconImageCache;\n\n/**\n * The {@link module:ol/style/IconImageCache~IconImageCache} for\n * {@link module:ol/style/Icon~Icon} images.\n * @api\n */\nexport const shared = new IconImageCache();\n","/**\n * @module ol/ImageBase\n */\nimport EventTarget from './events/Target.js';\nimport EventType from './events/EventType.js';\nimport {abstract} from './util.js';\n\n/**\n * @abstract\n */\nclass ImageBase extends EventTarget {\n /**\n * @param {import(\"./extent.js\").Extent} extent Extent.\n * @param {number|undefined} resolution Resolution.\n * @param {number} pixelRatio Pixel ratio.\n * @param {import(\"./ImageState.js\").default} state State.\n */\n constructor(extent, resolution, pixelRatio, state) {\n super();\n\n /**\n * @protected\n * @type {import(\"./extent.js\").Extent}\n */\n this.extent = extent;\n\n /**\n * @private\n * @type {number}\n */\n this.pixelRatio_ = pixelRatio;\n\n /**\n * @protected\n * @type {number|undefined}\n */\n this.resolution = resolution;\n\n /**\n * @protected\n * @type {import(\"./ImageState.js\").default}\n */\n this.state = state;\n }\n\n /**\n * @protected\n */\n changed() {\n this.dispatchEvent(EventType.CHANGE);\n }\n\n /**\n * @return {import(\"./extent.js\").Extent} Extent.\n */\n getExtent() {\n return this.extent;\n }\n\n /**\n * @abstract\n * @return {HTMLCanvasElement|HTMLImageElement|HTMLVideoElement} Image.\n */\n getImage() {\n return abstract();\n }\n\n /**\n * @return {number} PixelRatio.\n */\n getPixelRatio() {\n return this.pixelRatio_;\n }\n\n /**\n * @return {number} Resolution.\n */\n getResolution() {\n return /** @type {number} */ (this.resolution);\n }\n\n /**\n * @return {import(\"./ImageState.js\").default} State.\n */\n getState() {\n return this.state;\n }\n\n /**\n * Load not yet loaded URI.\n * @abstract\n */\n load() {\n abstract();\n }\n}\n\nexport default ImageBase;\n","/**\n * @module ol/Image\n */\nimport EventType from './events/EventType.js';\nimport ImageBase from './ImageBase.js';\nimport ImageState from './ImageState.js';\nimport {IMAGE_DECODE} from './has.js';\nimport {getHeight} from './extent.js';\nimport {listenOnce, unlistenByKey} from './events.js';\n\n/**\n * A function that takes an {@link module:ol/Image~Image} for the image and a\n * `{string}` for the src as arguments. It is supposed to make it so the\n * underlying image {@link module:ol/Image~Image#getImage} is assigned the\n * content specified by the src. If not specified, the default is\n *\n * function(image, src) {\n * image.getImage().src = src;\n * }\n *\n * Providing a custom `imageLoadFunction` can be useful to load images with\n * post requests or - in general - through XHR requests, where the src of the\n * image element would be set to a data URI when the content is loaded.\n *\n * @typedef {function(ImageWrapper, string): void} LoadFunction\n * @api\n */\n\nclass ImageWrapper extends ImageBase {\n /**\n * @param {import(\"./extent.js\").Extent} extent Extent.\n * @param {number|undefined} resolution Resolution.\n * @param {number} pixelRatio Pixel ratio.\n * @param {string} src Image source URI.\n * @param {?string} crossOrigin Cross origin.\n * @param {LoadFunction} imageLoadFunction Image load function.\n */\n constructor(\n extent,\n resolution,\n pixelRatio,\n src,\n crossOrigin,\n imageLoadFunction\n ) {\n super(extent, resolution, pixelRatio, ImageState.IDLE);\n\n /**\n * @private\n * @type {string}\n */\n this.src_ = src;\n\n /**\n * @private\n * @type {HTMLCanvasElement|HTMLImageElement|HTMLVideoElement}\n */\n this.image_ = new Image();\n if (crossOrigin !== null) {\n this.image_.crossOrigin = crossOrigin;\n }\n\n /**\n * @private\n * @type {?function():void}\n */\n this.unlisten_ = null;\n\n /**\n * @protected\n * @type {import(\"./ImageState.js\").default}\n */\n this.state = ImageState.IDLE;\n\n /**\n * @private\n * @type {LoadFunction}\n */\n this.imageLoadFunction_ = imageLoadFunction;\n }\n\n /**\n * @return {HTMLCanvasElement|HTMLImageElement|HTMLVideoElement} Image.\n * @api\n */\n getImage() {\n return this.image_;\n }\n\n /**\n * Tracks loading or read errors.\n *\n * @private\n */\n handleImageError_() {\n this.state = ImageState.ERROR;\n this.unlistenImage_();\n this.changed();\n }\n\n /**\n * Tracks successful image load.\n *\n * @private\n */\n handleImageLoad_() {\n if (this.resolution === undefined) {\n this.resolution = getHeight(this.extent) / this.image_.height;\n }\n this.state = ImageState.LOADED;\n this.unlistenImage_();\n this.changed();\n }\n\n /**\n * Load the image or retry if loading previously failed.\n * Loading is taken care of by the tile queue, and calling this method is\n * only needed for preloading or for reloading in case of an error.\n * @api\n */\n load() {\n if (this.state == ImageState.IDLE || this.state == ImageState.ERROR) {\n this.state = ImageState.LOADING;\n this.changed();\n this.imageLoadFunction_(this, this.src_);\n this.unlisten_ = listenImage(\n this.image_,\n this.handleImageLoad_.bind(this),\n this.handleImageError_.bind(this)\n );\n }\n }\n\n /**\n * @param {HTMLCanvasElement|HTMLImageElement|HTMLVideoElement} image Image.\n */\n setImage(image) {\n this.image_ = image;\n }\n\n /**\n * Discards event handlers which listen for load completion or errors.\n *\n * @private\n */\n unlistenImage_() {\n if (this.unlisten_) {\n this.unlisten_();\n this.unlisten_ = null;\n }\n }\n}\n\n/**\n * @param {HTMLCanvasElement|HTMLImageElement|HTMLVideoElement} image Image element.\n * @param {function():any} loadHandler Load callback function.\n * @param {function():any} errorHandler Error callback function.\n * @return {function():void} Callback to stop listening.\n */\nexport function listenImage(image, loadHandler, errorHandler) {\n const img = /** @type {HTMLImageElement} */ (image);\n\n if (img.src && IMAGE_DECODE) {\n const promise = img.decode();\n let listening = true;\n const unlisten = function () {\n listening = false;\n };\n promise\n .then(function () {\n if (listening) {\n loadHandler();\n }\n })\n .catch(function (error) {\n if (listening) {\n // FIXME: Unconditionally call errorHandler() when this bug is fixed upstream:\n // https://bugs.webkit.org/show_bug.cgi?id=198527\n if (\n error.name === 'EncodingError' &&\n error.message === 'Invalid image type.'\n ) {\n loadHandler();\n } else {\n errorHandler();\n }\n }\n });\n return unlisten;\n }\n\n const listenerKeys = [\n listenOnce(img, EventType.LOAD, loadHandler),\n listenOnce(img, EventType.ERROR, errorHandler),\n ];\n return function unlisten() {\n listenerKeys.forEach(unlistenByKey);\n };\n}\n\nexport default ImageWrapper;\n","/**\n * @module ol/style/IconImage\n */\n\nimport EventTarget from '../events/Target.js';\nimport EventType from '../events/EventType.js';\nimport ImageState from '../ImageState.js';\nimport {createCanvasContext2D} from '../dom.js';\nimport {shared as iconImageCache} from './IconImageCache.js';\nimport {listenImage} from '../Image.js';\n\n/**\n * @type {CanvasRenderingContext2D}\n */\nlet taintedTestContext = null;\n\nclass IconImage extends EventTarget {\n /**\n * @param {HTMLImageElement|HTMLCanvasElement} image Image.\n * @param {string|undefined} src Src.\n * @param {import(\"../size.js\").Size} size Size.\n * @param {?string} crossOrigin Cross origin.\n * @param {import(\"../ImageState.js\").default} imageState Image state.\n * @param {import(\"../color.js\").Color} color Color.\n */\n constructor(image, src, size, crossOrigin, imageState, color) {\n super();\n\n /**\n * @private\n * @type {HTMLImageElement|HTMLCanvasElement}\n */\n this.hitDetectionImage_ = null;\n\n /**\n * @private\n * @type {HTMLImageElement|HTMLCanvasElement}\n */\n this.image_ = !image ? new Image() : image;\n\n if (crossOrigin !== null) {\n /** @type {HTMLImageElement} */ (this.image_).crossOrigin = crossOrigin;\n }\n\n /**\n * @private\n * @type {Object<number, HTMLCanvasElement>}\n */\n this.canvas_ = {};\n\n /**\n * @private\n * @type {import(\"../color.js\").Color}\n */\n this.color_ = color;\n\n /**\n * @private\n * @type {?function():void}\n */\n this.unlisten_ = null;\n\n /**\n * @private\n * @type {import(\"../ImageState.js\").default}\n */\n this.imageState_ = imageState;\n\n /**\n * @private\n * @type {import(\"../size.js\").Size}\n */\n this.size_ = size;\n\n /**\n * @private\n * @type {string|undefined}\n */\n this.src_ = src;\n\n /**\n * @private\n */\n this.tainted_;\n }\n\n /**\n * @private\n * @return {boolean} The image canvas is tainted.\n */\n isTainted_() {\n if (this.tainted_ === undefined && this.imageState_ === ImageState.LOADED) {\n if (!taintedTestContext) {\n taintedTestContext = createCanvasContext2D(1, 1);\n }\n taintedTestContext.drawImage(this.image_, 0, 0);\n try {\n taintedTestContext.getImageData(0, 0, 1, 1);\n this.tainted_ = false;\n } catch (e) {\n taintedTestContext = null;\n this.tainted_ = true;\n }\n }\n return this.tainted_ === true;\n }\n\n /**\n * @private\n */\n dispatchChangeEvent_() {\n this.dispatchEvent(EventType.CHANGE);\n }\n\n /**\n * @private\n */\n handleImageError_() {\n this.imageState_ = ImageState.ERROR;\n this.unlistenImage_();\n this.dispatchChangeEvent_();\n }\n\n /**\n * @private\n */\n handleImageLoad_() {\n this.imageState_ = ImageState.LOADED;\n if (this.size_) {\n this.image_.width = this.size_[0];\n this.image_.height = this.size_[1];\n } else {\n this.size_ = [this.image_.width, this.image_.height];\n }\n this.unlistenImage_();\n this.dispatchChangeEvent_();\n }\n\n /**\n * @param {number} pixelRatio Pixel ratio.\n * @return {HTMLImageElement|HTMLCanvasElement} Image or Canvas element.\n */\n getImage(pixelRatio) {\n this.replaceColor_(pixelRatio);\n return this.canvas_[pixelRatio] ? this.canvas_[pixelRatio] : this.image_;\n }\n\n /**\n * @param {number} pixelRatio Pixel ratio.\n * @return {number} Image or Canvas element.\n */\n getPixelRatio(pixelRatio) {\n this.replaceColor_(pixelRatio);\n return this.canvas_[pixelRatio] ? pixelRatio : 1;\n }\n\n /**\n * @return {import(\"../ImageState.js\").default} Image state.\n */\n getImageState() {\n return this.imageState_;\n }\n\n /**\n * @return {HTMLImageElement|HTMLCanvasElement} Image element.\n */\n getHitDetectionImage() {\n if (!this.hitDetectionImage_) {\n if (this.isTainted_()) {\n const width = this.size_[0];\n const height = this.size_[1];\n const context = createCanvasContext2D(width, height);\n context.fillRect(0, 0, width, height);\n this.hitDetectionImage_ = context.canvas;\n } else {\n this.hitDetectionImage_ = this.image_;\n }\n }\n return this.hitDetectionImage_;\n }\n\n /**\n * Get the size of the icon (in pixels).\n * @return {import(\"../size.js\").Size} Image size.\n */\n getSize() {\n return this.size_;\n }\n\n /**\n * @return {string|undefined} Image src.\n */\n getSrc() {\n return this.src_;\n }\n\n /**\n * Load not yet loaded URI.\n */\n load() {\n if (this.imageState_ == ImageState.IDLE) {\n this.imageState_ = ImageState.LOADING;\n try {\n /** @type {HTMLImageElement} */ (this.image_).src = this.src_;\n } catch (e) {\n this.handleImageError_();\n }\n this.unlisten_ = listenImage(\n this.image_,\n this.handleImageLoad_.bind(this),\n this.handleImageError_.bind(this)\n );\n }\n }\n\n /**\n * @param {number} pixelRatio Pixel ratio.\n * @private\n */\n replaceColor_(pixelRatio) {\n if (!this.color_ || this.canvas_[pixelRatio]) {\n return;\n }\n\n const canvas = document.createElement('canvas');\n this.canvas_[pixelRatio] = canvas;\n\n canvas.width = Math.ceil(this.image_.width * pixelRatio);\n canvas.height = Math.ceil(this.image_.height * pixelRatio);\n\n const ctx = canvas.getContext('2d');\n ctx.scale(pixelRatio, pixelRatio);\n ctx.drawImage(this.image_, 0, 0);\n\n if (this.isTainted_()) {\n // If reading from the canvas throws a SecurityError the same effect can be\n // achieved with globalCompositeOperation.\n // This could be used as the default, but it is not fully supported by all\n // browsers. E. g. Internet Explorer 11 does not support the multiply\n // operation and the resulting image shape will be completelly filled with\n // the provided color.\n // So this is only used as a fallback. It is still better than having no icon\n // at all.\n const c = this.color_;\n ctx.globalCompositeOperation = 'multiply';\n ctx.fillStyle = 'rgb(' + c[0] + ',' + c[1] + ',' + c[2] + ')';\n ctx.fillRect(0, 0, canvas.width, canvas.height);\n\n ctx.globalCompositeOperation = 'destination-in';\n ctx.drawImage(this.image_, 0, 0);\n return;\n }\n\n const imgData = ctx.getImageData(0, 0, canvas.width, canvas.height);\n const data = imgData.data;\n const r = this.color_[0] / 255.0;\n const g = this.color_[1] / 255.0;\n const b = this.color_[2] / 255.0;\n\n for (let i = 0, ii = data.length; i < ii; i += 4) {\n data[i] *= r;\n data[i + 1] *= g;\n data[i + 2] *= b;\n }\n ctx.putImageData(imgData, 0, 0);\n }\n\n /**\n * Discards event handlers which listen for load completion or errors.\n *\n * @private\n */\n unlistenImage_() {\n if (this.unlisten_) {\n this.unlisten_();\n this.unlisten_ = null;\n }\n }\n}\n\n/**\n * @param {HTMLImageElement|HTMLCanvasElement} image Image.\n * @param {string} src Src.\n * @param {import(\"../size.js\").Size} size Size.\n * @param {?string} crossOrigin Cross origin.\n * @param {import(\"../ImageState.js\").default} imageState Image state.\n * @param {import(\"../color.js\").Color} color Color.\n * @return {IconImage} Icon image.\n */\nexport function get(image, src, size, crossOrigin, imageState, color) {\n let iconImage = iconImageCache.get(src, crossOrigin, color);\n if (!iconImage) {\n iconImage = new IconImage(image, src, size, crossOrigin, imageState, color);\n iconImageCache.set(src, crossOrigin, color, iconImage);\n }\n return iconImage;\n}\n\nexport default IconImage;\n","/**\n * @module ol/style/Icon\n */\nimport EventType from '../events/EventType.js';\nimport IconAnchorUnits from './IconAnchorUnits.js';\nimport IconOrigin from './IconOrigin.js';\nimport ImageState from '../ImageState.js';\nimport ImageStyle from './Image.js';\nimport {asArray} from '../color.js';\nimport {assert} from '../asserts.js';\nimport {get as getIconImage} from './IconImage.js';\nimport {getUid} from '../util.js';\n\n/**\n * @typedef {Object} Options\n * @property {Array<number>} [anchor=[0.5, 0.5]] Anchor. Default value is the icon center.\n * @property {import(\"./IconOrigin.js\").default} [anchorOrigin='top-left'] Origin of the anchor: `bottom-left`, `bottom-right`,\n * `top-left` or `top-right`.\n * @property {import(\"./IconAnchorUnits.js\").default} [anchorXUnits='fraction'] Units in which the anchor x value is\n * specified. A value of `'fraction'` indicates the x value is a fraction of the icon. A value of `'pixels'` indicates\n * the x value in pixels.\n * @property {import(\"./IconAnchorUnits.js\").default} [anchorYUnits='fraction'] Units in which the anchor y value is\n * specified. A value of `'fraction'` indicates the y value is a fraction of the icon. A value of `'pixels'` indicates\n * the y value in pixels.\n * @property {import(\"../color.js\").Color|string} [color] Color to tint the icon. If not specified,\n * the icon will be left as is.\n * @property {null|string} [crossOrigin] The `crossOrigin` attribute for loaded images. Note that you must provide a\n * `crossOrigin` value if you want to access pixel data with the Canvas renderer.\n * See https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_enabled_image for more detail.\n * @property {HTMLImageElement|HTMLCanvasElement} [img] Image object for the icon. If the `src` option is not provided then the\n * provided image must already be loaded. And in that case, it is required\n * to provide the size of the image, with the `imgSize` option.\n * @property {Array<number>} [offset=[0, 0]] Offset, which, together with the size and the offset origin, define the\n * sub-rectangle to use from the original icon image.\n * @property {Array<number>} [displacement=[0,0]] Displacement the icon\n * @property {import(\"./IconOrigin.js\").default} [offsetOrigin='top-left'] Origin of the offset: `bottom-left`, `bottom-right`,\n * `top-left` or `top-right`.\n * @property {number} [opacity=1] Opacity of the icon.\n * @property {number|import(\"../size.js\").Size} [scale=1] Scale.\n * @property {boolean} [rotateWithView=false] Whether to rotate the icon with the view.\n * @property {number} [rotation=0] Rotation in radians (positive rotation clockwise).\n * @property {import(\"../size.js\").Size} [size] Icon size in pixel. Can be used together with `offset` to define the\n * sub-rectangle to use from the origin (sprite) icon image.\n * @property {import(\"../size.js\").Size} [imgSize] Image size in pixels. Only required if `img` is set and `src` is not, and\n * for SVG images in Internet Explorer 11. The provided `imgSize` needs to match the actual size of the image.\n * @property {string} [src] Image source URI.\n */\n\n/**\n * @classdesc\n * Set icon style for vector features.\n * @api\n */\nclass Icon extends ImageStyle {\n /**\n * @param {Options=} opt_options Options.\n */\n constructor(opt_options) {\n const options = opt_options || {};\n\n /**\n * @type {number}\n */\n const opacity = options.opacity !== undefined ? options.opacity : 1;\n\n /**\n * @type {number}\n */\n const rotation = options.rotation !== undefined ? options.rotation : 0;\n\n /**\n * @type {number|import(\"../size.js\").Size}\n */\n const scale = options.scale !== undefined ? options.scale : 1;\n\n /**\n * @type {boolean}\n */\n const rotateWithView =\n options.rotateWithView !== undefined ? options.rotateWithView : false;\n\n super({\n opacity: opacity,\n rotation: rotation,\n scale: scale,\n displacement:\n options.displacement !== undefined ? options.displacement : [0, 0],\n rotateWithView: rotateWithView,\n });\n\n /**\n * @private\n * @type {Array<number>}\n */\n this.anchor_ = options.anchor !== undefined ? options.anchor : [0.5, 0.5];\n\n /**\n * @private\n * @type {Array<number>}\n */\n this.normalizedAnchor_ = null;\n\n /**\n * @private\n * @type {import(\"./IconOrigin.js\").default}\n */\n this.anchorOrigin_ =\n options.anchorOrigin !== undefined\n ? options.anchorOrigin\n : IconOrigin.TOP_LEFT;\n\n /**\n * @private\n * @type {import(\"./IconAnchorUnits.js\").default}\n */\n this.anchorXUnits_ =\n options.anchorXUnits !== undefined\n ? options.anchorXUnits\n : IconAnchorUnits.FRACTION;\n\n /**\n * @private\n * @type {import(\"./IconAnchorUnits.js\").default}\n */\n this.anchorYUnits_ =\n options.anchorYUnits !== undefined\n ? options.anchorYUnits\n : IconAnchorUnits.FRACTION;\n\n /**\n * @private\n * @type {?string}\n */\n this.crossOrigin_ =\n options.crossOrigin !== undefined ? options.crossOrigin : null;\n\n /**\n * @type {HTMLImageElement|HTMLCanvasElement}\n */\n const image = options.img !== undefined ? options.img : null;\n\n /**\n * @type {import(\"../size.js\").Size}\n */\n const imgSize = options.imgSize !== undefined ? options.imgSize : null;\n\n /**\n * @type {string|undefined}\n */\n let src = options.src;\n\n assert(!(src !== undefined && image), 4); // `image` and `src` cannot be provided at the same time\n assert(!image || (image && imgSize), 5); // `imgSize` must be set when `image` is provided\n\n if ((src === undefined || src.length === 0) && image) {\n src = /** @type {HTMLImageElement} */ (image).src || getUid(image);\n }\n assert(src !== undefined && src.length > 0, 6); // A defined and non-empty `src` or `image` must be provided\n\n /**\n * @type {import(\"../ImageState.js\").default}\n */\n const imageState =\n options.src !== undefined ? ImageState.IDLE : ImageState.LOADED;\n\n /**\n * @private\n * @type {import(\"../color.js\").Color}\n */\n this.color_ = options.color !== undefined ? asArray(options.color) : null;\n\n /**\n * @private\n * @type {import(\"./IconImage.js\").default}\n */\n this.iconImage_ = getIconImage(\n image,\n /** @type {string} */ (src),\n imgSize,\n this.crossOrigin_,\n imageState,\n this.color_\n );\n\n /**\n * @private\n * @type {Array<number>}\n */\n this.offset_ = options.offset !== undefined ? options.offset : [0, 0];\n /**\n * @private\n * @type {import(\"./IconOrigin.js\").default}\n */\n this.offsetOrigin_ =\n options.offsetOrigin !== undefined\n ? options.offsetOrigin\n : IconOrigin.TOP_LEFT;\n\n /**\n * @private\n * @type {Array<number>}\n */\n this.origin_ = null;\n\n /**\n * @private\n * @type {import(\"../size.js\").Size}\n */\n this.size_ = options.size !== undefined ? options.size : null;\n }\n\n /**\n * Clones the style. The underlying Image/HTMLCanvasElement is not cloned.\n * @return {Icon} The cloned style.\n * @api\n */\n clone() {\n const scale = this.getScale();\n return new Icon({\n anchor: this.anchor_.slice(),\n anchorOrigin: this.anchorOrigin_,\n anchorXUnits: this.anchorXUnits_,\n anchorYUnits: this.anchorYUnits_,\n crossOrigin: this.crossOrigin_,\n color:\n this.color_ && this.color_.slice\n ? this.color_.slice()\n : this.color_ || undefined,\n src: this.getSrc(),\n offset: this.offset_.slice(),\n offsetOrigin: this.offsetOrigin_,\n size: this.size_ !== null ? this.size_.slice() : undefined,\n opacity: this.getOpacity(),\n scale: Array.isArray(scale) ? scale.slice() : scale,\n rotation: this.getRotation(),\n rotateWithView: this.getRotateWithView(),\n });\n }\n\n /**\n * Get the anchor point in pixels. The anchor determines the center point for the\n * symbolizer.\n * @return {Array<number>} Anchor.\n * @api\n */\n getAnchor() {\n if (this.normalizedAnchor_) {\n return this.normalizedAnchor_;\n }\n let anchor = this.anchor_;\n const size = this.getSize();\n if (\n this.anchorXUnits_ == IconAnchorUnits.FRACTION ||\n this.anchorYUnits_ == IconAnchorUnits.FRACTION\n ) {\n if (!size) {\n return null;\n }\n anchor = this.anchor_.slice();\n if (this.anchorXUnits_ == IconAnchorUnits.FRACTION) {\n anchor[0] *= size[0];\n }\n if (this.anchorYUnits_ == IconAnchorUnits.FRACTION) {\n anchor[1] *= size[1];\n }\n }\n\n if (this.anchorOrigin_ != IconOrigin.TOP_LEFT) {\n if (!size) {\n return null;\n }\n if (anchor === this.anchor_) {\n anchor = this.anchor_.slice();\n }\n if (\n this.anchorOrigin_ == IconOrigin.TOP_RIGHT ||\n this.anchorOrigin_ == IconOrigin.BOTTOM_RIGHT\n ) {\n anchor[0] = -anchor[0] + size[0];\n }\n if (\n this.anchorOrigin_ == IconOrigin.BOTTOM_LEFT ||\n this.anchorOrigin_ == IconOrigin.BOTTOM_RIGHT\n ) {\n anchor[1] = -anchor[1] + size[1];\n }\n }\n this.normalizedAnchor_ = anchor;\n return this.normalizedAnchor_;\n }\n\n /**\n * Set the anchor point. The anchor determines the center point for the\n * symbolizer.\n *\n * @param {Array<number>} anchor Anchor.\n * @api\n */\n setAnchor(anchor) {\n this.anchor_ = anchor;\n this.normalizedAnchor_ = null;\n }\n\n /**\n * Get the icon color.\n * @return {import(\"../color.js\").Color} Color.\n * @api\n */\n getColor() {\n return this.color_;\n }\n\n /**\n * Get the image icon.\n * @param {number} pixelRatio Pixel ratio.\n * @return {HTMLImageElement|HTMLCanvasElement} Image or Canvas element.\n * @api\n */\n getImage(pixelRatio) {\n return this.iconImage_.getImage(pixelRatio);\n }\n\n /**\n * Get the pixel ratio.\n * @param {number} pixelRatio Pixel ratio.\n * @return {number} The pixel ration of the image.\n * @api\n */\n getPixelRatio(pixelRatio) {\n return this.iconImage_.getPixelRatio(pixelRatio);\n }\n\n /**\n * @return {import(\"../size.js\").Size} Image size.\n */\n getImageSize() {\n return this.iconImage_.getSize();\n }\n\n /**\n * @return {import(\"../size.js\").Size} Size of the hit-detection image.\n */\n getHitDetectionImageSize() {\n return this.getImageSize();\n }\n\n /**\n * @return {import(\"../ImageState.js\").default} Image state.\n */\n getImageState() {\n return this.iconImage_.getImageState();\n }\n\n /**\n * @return {HTMLImageElement|HTMLCanvasElement} Image element.\n */\n getHitDetectionImage() {\n return this.iconImage_.getHitDetectionImage();\n }\n\n /**\n * Get the origin of the symbolizer.\n * @return {Array<number>} Origin.\n * @api\n */\n getOrigin() {\n if (this.origin_) {\n return this.origin_;\n }\n let offset = this.offset_;\n const displacement = this.getDisplacement();\n\n if (this.offsetOrigin_ != IconOrigin.TOP_LEFT) {\n const size = this.getSize();\n const iconImageSize = this.iconImage_.getSize();\n if (!size || !iconImageSize) {\n return null;\n }\n offset = offset.slice();\n if (\n this.offsetOrigin_ == IconOrigin.TOP_RIGHT ||\n this.offsetOrigin_ == IconOrigin.BOTTOM_RIGHT\n ) {\n offset[0] = iconImageSize[0] - size[0] - offset[0];\n }\n if (\n this.offsetOrigin_ == IconOrigin.BOTTOM_LEFT ||\n this.offsetOrigin_ == IconOrigin.BOTTOM_RIGHT\n ) {\n offset[1] = iconImageSize[1] - size[1] - offset[1];\n }\n }\n offset[0] += displacement[0];\n offset[1] += displacement[1];\n this.origin_ = offset;\n return this.origin_;\n }\n\n /**\n * Get the image URL.\n * @return {string|undefined} Image src.\n * @api\n */\n getSrc() {\n return this.iconImage_.getSrc();\n }\n\n /**\n * Get the size of the icon (in pixels).\n * @return {import(\"../size.js\").Size} Image size.\n * @api\n */\n getSize() {\n return !this.size_ ? this.iconImage_.getSize() : this.size_;\n }\n\n /**\n * @param {function(import(\"../events/Event.js\").default): void} listener Listener function.\n */\n listenImageChange(listener) {\n this.iconImage_.addEventListener(EventType.CHANGE, listener);\n }\n\n /**\n * Load not yet loaded URI.\n * When rendering a feature with an icon style, the vector renderer will\n * automatically call this method. However, you might want to call this\n * method yourself for preloading or other purposes.\n * @api\n */\n load() {\n this.iconImage_.load();\n }\n\n /**\n * @param {function(import(\"../events/Event.js\").default): void} listener Listener function.\n */\n unlistenImageChange(listener) {\n this.iconImage_.removeEventListener(EventType.CHANGE, listener);\n }\n}\n\nexport default Icon;\n","/**\n * @module ol/style\n */\n\nexport {default as Circle} from './style/Circle.js';\nexport {default as Fill} from './style/Fill.js';\nexport {default as Icon} from './style/Icon.js';\nexport {default as IconImage} from './style/IconImage.js';\nexport {default as Image} from './style/Image.js';\nexport {default as RegularShape} from './style/RegularShape.js';\nexport {default as Stroke} from './style/Stroke.js';\nexport {default as Style} from './style/Style.js';\nexport {default as Text} from './style/Text.js';\n","/**\n * @module ol/render/canvas/hitdetet\n */\n\nimport CanvasImmediateRenderer from './Immediate.js';\nimport GeometryType from '../../geom/GeometryType.js';\nimport IconAnchorUnits from '../../style/IconAnchorUnits.js';\nimport {Icon} from '../../style.js';\nimport {createCanvasContext2D} from '../../dom.js';\nimport {intersects} from '../../extent.js';\nimport {numberSafeCompareFunction} from '../../array.js';\n\n/**\n * @param {import(\"../../size.js\").Size} size Canvas size in css pixels.\n * @param {Array<import(\"../../transform.js\").Transform>} transforms Transforms\n * for rendering features to all worlds of the viewport, from coordinates to css\n * pixels.\n * @param {Array<import(\"../../Feature.js\").FeatureLike>} features\n * Features to consider for hit detection.\n * @param {import(\"../../style/Style.js\").StyleFunction|undefined} styleFunction\n * Layer style function.\n * @param {import(\"../../extent.js\").Extent} extent Extent.\n * @param {number} resolution Resolution.\n * @param {number} rotation Rotation.\n * @return {ImageData} Hit detection image data.\n */\nexport function createHitDetectionImageData(\n size,\n transforms,\n features,\n styleFunction,\n extent,\n resolution,\n rotation\n) {\n const width = size[0] / 2;\n const height = size[1] / 2;\n const context = createCanvasContext2D(width, height);\n context.imageSmoothingEnabled = false;\n const canvas = context.canvas;\n const renderer = new CanvasImmediateRenderer(\n context,\n 0.5,\n extent,\n null,\n rotation\n );\n const featureCount = features.length;\n // Stretch hit detection index to use the whole available color range\n const indexFactor = Math.floor((256 * 256 * 256 - 1) / featureCount);\n const featuresByZIndex = {};\n for (let i = 1; i <= featureCount; ++i) {\n const feature = features[i - 1];\n const featureStyleFunction = feature.getStyleFunction() || styleFunction;\n if (!styleFunction) {\n continue;\n }\n let styles = featureStyleFunction(feature, resolution);\n if (!styles) {\n continue;\n }\n if (!Array.isArray(styles)) {\n styles = [styles];\n }\n const index = i * indexFactor;\n const color = '#' + ('000000' + index.toString(16)).slice(-6);\n for (let j = 0, jj = styles.length; j < jj; ++j) {\n const originalStyle = styles[j];\n const style = originalStyle.clone();\n const fill = style.getFill();\n if (fill) {\n fill.setColor(color);\n }\n const stroke = style.getStroke();\n if (stroke) {\n stroke.setColor(color);\n }\n style.setText(undefined);\n const image = originalStyle.getImage();\n if (image) {\n const imgSize = image.getImageSize();\n if (!imgSize) {\n continue;\n }\n\n const canvas = document.createElement('canvas');\n canvas.width = imgSize[0];\n canvas.height = imgSize[1];\n const imgContext = canvas.getContext('2d', {alpha: false});\n imgContext.fillStyle = color;\n const img = imgContext.canvas;\n imgContext.fillRect(0, 0, img.width, img.height);\n const width = imgSize ? imgSize[0] : img.width;\n const height = imgSize ? imgSize[1] : img.height;\n const iconContext = createCanvasContext2D(width, height);\n iconContext.drawImage(img, 0, 0);\n style.setImage(\n new Icon({\n img: img,\n imgSize: imgSize,\n anchor: image.getAnchor(),\n anchorXUnits: IconAnchorUnits.PIXELS,\n anchorYUnits: IconAnchorUnits.PIXELS,\n offset: image.getOrigin(),\n size: image.getSize(),\n opacity: image.getOpacity(),\n scale: image.getScale(),\n rotation: image.getRotation(),\n rotateWithView: image.getRotateWithView(),\n })\n );\n }\n const zIndex = Number(style.getZIndex());\n let byGeometryType = featuresByZIndex[zIndex];\n if (!byGeometryType) {\n byGeometryType = {};\n featuresByZIndex[zIndex] = byGeometryType;\n byGeometryType[GeometryType.POLYGON] = [];\n byGeometryType[GeometryType.CIRCLE] = [];\n byGeometryType[GeometryType.LINE_STRING] = [];\n byGeometryType[GeometryType.POINT] = [];\n }\n const geometry = style.getGeometryFunction()(feature);\n if (geometry && intersects(extent, geometry.getExtent())) {\n byGeometryType[geometry.getType().replace('Multi', '')].push(\n geometry,\n style\n );\n }\n }\n }\n\n const zIndexKeys = Object.keys(featuresByZIndex)\n .map(Number)\n .sort(numberSafeCompareFunction);\n for (let i = 0, ii = zIndexKeys.length; i < ii; ++i) {\n const byGeometryType = featuresByZIndex[zIndexKeys[i]];\n for (const type in byGeometryType) {\n const geomAndStyle = byGeometryType[type];\n for (let j = 0, jj = geomAndStyle.length; j < jj; j += 2) {\n renderer.setStyle(geomAndStyle[j + 1]);\n for (let k = 0, kk = transforms.length; k < kk; ++k) {\n renderer.setTransform(transforms[k]);\n renderer.drawGeometry(geomAndStyle[j]);\n }\n }\n }\n }\n return context.getImageData(0, 0, canvas.width, canvas.height);\n}\n\n/**\n * @param {import(\"../../pixel\").Pixel} pixel Pixel coordinate on the hit\n * detection canvas in css pixels.\n * @param {Array<import(\"../../Feature\").FeatureLike>} features Features. Has to\n * match the `features` array that was passed to `createHitDetectionImageData()`.\n * @param {ImageData} imageData Hit detection image data generated by\n * `createHitDetectionImageData()`.\n * @return {Array<import(\"../../Feature\").FeatureLike>} features Features.\n */\nexport function hitDetect(pixel, features, imageData) {\n const resultFeatures = [];\n if (imageData) {\n const index =\n (Math.round(pixel[0] / 2) + Math.round(pixel[1] / 2) * imageData.width) *\n 4;\n const r = imageData.data[index];\n const g = imageData.data[index + 1];\n const b = imageData.data[index + 2];\n const i = b + 256 * (g + 256 * r);\n const indexFactor = Math.floor((256 * 256 * 256 - 1) / features.length);\n if (i && i % indexFactor === 0) {\n resultFeatures.push(features[i / indexFactor - 1]);\n }\n }\n return resultFeatures;\n}\n","/**\n * @module ol/renderer/vector\n */\nimport BuilderType from '../render/canvas/BuilderType.js';\nimport GeometryType from '../geom/GeometryType.js';\nimport ImageState from '../ImageState.js';\nimport {getUid} from '../util.js';\n\n/**\n * Tolerance for geometry simplification in device pixels.\n * @type {number}\n */\nconst SIMPLIFY_TOLERANCE = 0.5;\n\n/**\n * @const\n * @type {Object<import(\"../geom/GeometryType.js\").default,\n * function(import(\"../render/canvas/BuilderGroup.js\").default, import(\"../geom/Geometry.js\").default,\n * import(\"../style/Style.js\").default, Object): void>}\n */\nconst GEOMETRY_RENDERERS = {\n 'Point': renderPointGeometry,\n 'LineString': renderLineStringGeometry,\n 'Polygon': renderPolygonGeometry,\n 'MultiPoint': renderMultiPointGeometry,\n 'MultiLineString': renderMultiLineStringGeometry,\n 'MultiPolygon': renderMultiPolygonGeometry,\n 'GeometryCollection': renderGeometryCollectionGeometry,\n 'Circle': renderCircleGeometry,\n};\n\n/**\n * @param {import(\"../Feature.js\").FeatureLike} feature1 Feature 1.\n * @param {import(\"../Feature.js\").FeatureLike} feature2 Feature 2.\n * @return {number} Order.\n */\nexport function defaultOrder(feature1, feature2) {\n return parseInt(getUid(feature1), 10) - parseInt(getUid(feature2), 10);\n}\n\n/**\n * @param {number} resolution Resolution.\n * @param {number} pixelRatio Pixel ratio.\n * @return {number} Squared pixel tolerance.\n */\nexport function getSquaredTolerance(resolution, pixelRatio) {\n const tolerance = getTolerance(resolution, pixelRatio);\n return tolerance * tolerance;\n}\n\n/**\n * @param {number} resolution Resolution.\n * @param {number} pixelRatio Pixel ratio.\n * @return {number} Pixel tolerance.\n */\nexport function getTolerance(resolution, pixelRatio) {\n return (SIMPLIFY_TOLERANCE * resolution) / pixelRatio;\n}\n\n/**\n * @param {import(\"../render/canvas/BuilderGroup.js\").default} builderGroup Builder group.\n * @param {import(\"../geom/Circle.js\").default} geometry Geometry.\n * @param {import(\"../style/Style.js\").default} style Style.\n * @param {import(\"../Feature.js\").default} feature Feature.\n */\nfunction renderCircleGeometry(builderGroup, geometry, style, feature) {\n const fillStyle = style.getFill();\n const strokeStyle = style.getStroke();\n if (fillStyle || strokeStyle) {\n const circleReplay = builderGroup.getBuilder(\n style.getZIndex(),\n BuilderType.CIRCLE\n );\n circleReplay.setFillStrokeStyle(fillStyle, strokeStyle);\n circleReplay.drawCircle(geometry, feature);\n }\n const textStyle = style.getText();\n if (textStyle) {\n const textReplay = builderGroup.getBuilder(\n style.getZIndex(),\n BuilderType.TEXT\n );\n textReplay.setTextStyle(textStyle, builderGroup.addDeclutter(false));\n textReplay.drawText(geometry, feature);\n }\n}\n\n/**\n * @param {import(\"../render/canvas/BuilderGroup.js\").default} replayGroup Replay group.\n * @param {import(\"../Feature.js\").FeatureLike} feature Feature.\n * @param {import(\"../style/Style.js\").default} style Style.\n * @param {number} squaredTolerance Squared tolerance.\n * @param {function(import(\"../events/Event.js\").default): void} listener Listener function.\n * @param {import(\"../proj.js\").TransformFunction} [opt_transform] Transform from user to view projection.\n * @return {boolean} `true` if style is loading.\n * @template T\n */\nexport function renderFeature(\n replayGroup,\n feature,\n style,\n squaredTolerance,\n listener,\n opt_transform\n) {\n let loading = false;\n const imageStyle = style.getImage();\n if (imageStyle) {\n let imageState = imageStyle.getImageState();\n if (imageState == ImageState.LOADED || imageState == ImageState.ERROR) {\n imageStyle.unlistenImageChange(listener);\n } else {\n if (imageState == ImageState.IDLE) {\n imageStyle.load();\n }\n imageState = imageStyle.getImageState();\n imageStyle.listenImageChange(listener);\n loading = true;\n }\n }\n renderFeatureInternal(\n replayGroup,\n feature,\n style,\n squaredTolerance,\n opt_transform\n );\n\n return loading;\n}\n\n/**\n * @param {import(\"../render/canvas/BuilderGroup.js\").default} replayGroup Replay group.\n * @param {import(\"../Feature.js\").FeatureLike} feature Feature.\n * @param {import(\"../style/Style.js\").default} style Style.\n * @param {number} squaredTolerance Squared tolerance.\n * @param {import(\"../proj.js\").TransformFunction} [opt_transform] Optional transform function.\n */\nfunction renderFeatureInternal(\n replayGroup,\n feature,\n style,\n squaredTolerance,\n opt_transform\n) {\n const geometry = style.getGeometryFunction()(feature);\n if (!geometry) {\n return;\n }\n const simplifiedGeometry = geometry.simplifyTransformed(\n squaredTolerance,\n opt_transform\n );\n const renderer = style.getRenderer();\n if (renderer) {\n renderGeometry(replayGroup, simplifiedGeometry, style, feature);\n } else {\n const geometryRenderer = GEOMETRY_RENDERERS[simplifiedGeometry.getType()];\n geometryRenderer(replayGroup, simplifiedGeometry, style, feature);\n }\n}\n\n/**\n * @param {import(\"../render/canvas/BuilderGroup.js\").default} replayGroup Replay group.\n * @param {import(\"../geom/Geometry.js\").default|import(\"../render/Feature.js\").default} geometry Geometry.\n * @param {import(\"../style/Style.js\").default} style Style.\n * @param {import(\"../Feature.js\").FeatureLike} feature Feature.\n */\nfunction renderGeometry(replayGroup, geometry, style, feature) {\n if (geometry.getType() == GeometryType.GEOMETRY_COLLECTION) {\n const geometries = /** @type {import(\"../geom/GeometryCollection.js\").default} */ (geometry).getGeometries();\n for (let i = 0, ii = geometries.length; i < ii; ++i) {\n renderGeometry(replayGroup, geometries[i], style, feature);\n }\n return;\n }\n const replay = replayGroup.getBuilder(style.getZIndex(), BuilderType.DEFAULT);\n replay.drawCustom(\n /** @type {import(\"../geom/SimpleGeometry.js\").default} */ (geometry),\n feature,\n style.getRenderer()\n );\n}\n\n/**\n * @param {import(\"../render/canvas/BuilderGroup.js\").default} replayGroup Replay group.\n * @param {import(\"../geom/GeometryCollection.js\").default} geometry Geometry.\n * @param {import(\"../style/Style.js\").default} style Style.\n * @param {import(\"../Feature.js\").default} feature Feature.\n */\nfunction renderGeometryCollectionGeometry(\n replayGroup,\n geometry,\n style,\n feature\n) {\n const geometries = geometry.getGeometriesArray();\n let i, ii;\n for (i = 0, ii = geometries.length; i < ii; ++i) {\n const geometryRenderer = GEOMETRY_RENDERERS[geometries[i].getType()];\n geometryRenderer(replayGroup, geometries[i], style, feature);\n }\n}\n\n/**\n * @param {import(\"../render/canvas/BuilderGroup.js\").default} builderGroup Replay group.\n * @param {import(\"../geom/LineString.js\").default|import(\"../render/Feature.js\").default} geometry Geometry.\n * @param {import(\"../style/Style.js\").default} style Style.\n * @param {import(\"../Feature.js\").FeatureLike} feature Feature.\n */\nfunction renderLineStringGeometry(builderGroup, geometry, style, feature) {\n const strokeStyle = style.getStroke();\n if (strokeStyle) {\n const lineStringReplay = builderGroup.getBuilder(\n style.getZIndex(),\n BuilderType.LINE_STRING\n );\n lineStringReplay.setFillStrokeStyle(null, strokeStyle);\n lineStringReplay.drawLineString(geometry, feature);\n }\n const textStyle = style.getText();\n if (textStyle) {\n const textReplay = builderGroup.getBuilder(\n style.getZIndex(),\n BuilderType.TEXT\n );\n textReplay.setTextStyle(textStyle, builderGroup.addDeclutter(false));\n textReplay.drawText(geometry, feature);\n }\n}\n\n/**\n * @param {import(\"../render/canvas/BuilderGroup.js\").default} builderGroup Replay group.\n * @param {import(\"../geom/MultiLineString.js\").default|import(\"../render/Feature.js\").default} geometry Geometry.\n * @param {import(\"../style/Style.js\").default} style Style.\n * @param {import(\"../Feature.js\").FeatureLike} feature Feature.\n */\nfunction renderMultiLineStringGeometry(builderGroup, geometry, style, feature) {\n const strokeStyle = style.getStroke();\n if (strokeStyle) {\n const lineStringReplay = builderGroup.getBuilder(\n style.getZIndex(),\n BuilderType.LINE_STRING\n );\n lineStringReplay.setFillStrokeStyle(null, strokeStyle);\n lineStringReplay.drawMultiLineString(geometry, feature);\n }\n const textStyle = style.getText();\n if (textStyle) {\n const textReplay = builderGroup.getBuilder(\n style.getZIndex(),\n BuilderType.TEXT\n );\n textReplay.setTextStyle(textStyle, builderGroup.addDeclutter(false));\n textReplay.drawText(geometry, feature);\n }\n}\n\n/**\n * @param {import(\"../render/canvas/BuilderGroup.js\").default} builderGroup Replay group.\n * @param {import(\"../geom/MultiPolygon.js\").default} geometry Geometry.\n * @param {import(\"../style/Style.js\").default} style Style.\n * @param {import(\"../Feature.js\").default} feature Feature.\n */\nfunction renderMultiPolygonGeometry(builderGroup, geometry, style, feature) {\n const fillStyle = style.getFill();\n const strokeStyle = style.getStroke();\n if (strokeStyle || fillStyle) {\n const polygonReplay = builderGroup.getBuilder(\n style.getZIndex(),\n BuilderType.POLYGON\n );\n polygonReplay.setFillStrokeStyle(fillStyle, strokeStyle);\n polygonReplay.drawMultiPolygon(geometry, feature);\n }\n const textStyle = style.getText();\n if (textStyle) {\n const textReplay = builderGroup.getBuilder(\n style.getZIndex(),\n BuilderType.TEXT\n );\n textReplay.setTextStyle(textStyle, builderGroup.addDeclutter(false));\n textReplay.drawText(geometry, feature);\n }\n}\n\n/**\n * @param {import(\"../render/canvas/BuilderGroup.js\").default} builderGroup Replay group.\n * @param {import(\"../geom/Point.js\").default|import(\"../render/Feature.js\").default} geometry Geometry.\n * @param {import(\"../style/Style.js\").default} style Style.\n * @param {import(\"../Feature.js\").FeatureLike} feature Feature.\n */\nfunction renderPointGeometry(builderGroup, geometry, style, feature) {\n const imageStyle = style.getImage();\n if (imageStyle) {\n if (imageStyle.getImageState() != ImageState.LOADED) {\n return;\n }\n const imageReplay = builderGroup.getBuilder(\n style.getZIndex(),\n BuilderType.IMAGE\n );\n imageReplay.setImageStyle(imageStyle, builderGroup.addDeclutter(false));\n imageReplay.drawPoint(geometry, feature);\n }\n const textStyle = style.getText();\n if (textStyle) {\n const textReplay = builderGroup.getBuilder(\n style.getZIndex(),\n BuilderType.TEXT\n );\n textReplay.setTextStyle(textStyle, builderGroup.addDeclutter(!!imageStyle));\n textReplay.drawText(geometry, feature);\n }\n}\n\n/**\n * @param {import(\"../render/canvas/BuilderGroup.js\").default} builderGroup Replay group.\n * @param {import(\"../geom/MultiPoint.js\").default|import(\"../render/Feature.js\").default} geometry Geometry.\n * @param {import(\"../style/Style.js\").default} style Style.\n * @param {import(\"../Feature.js\").FeatureLike} feature Feature.\n */\nfunction renderMultiPointGeometry(builderGroup, geometry, style, feature) {\n const imageStyle = style.getImage();\n if (imageStyle) {\n if (imageStyle.getImageState() != ImageState.LOADED) {\n return;\n }\n const imageReplay = builderGroup.getBuilder(\n style.getZIndex(),\n BuilderType.IMAGE\n );\n imageReplay.setImageStyle(imageStyle, builderGroup.addDeclutter(false));\n imageReplay.drawMultiPoint(geometry, feature);\n }\n const textStyle = style.getText();\n if (textStyle) {\n const textReplay = builderGroup.getBuilder(\n style.getZIndex(),\n BuilderType.TEXT\n );\n textReplay.setTextStyle(textStyle, builderGroup.addDeclutter(!!imageStyle));\n textReplay.drawText(geometry, feature);\n }\n}\n\n/**\n * @param {import(\"../render/canvas/BuilderGroup.js\").default} builderGroup Replay group.\n * @param {import(\"../geom/Polygon.js\").default|import(\"../render/Feature.js\").default} geometry Geometry.\n * @param {import(\"../style/Style.js\").default} style Style.\n * @param {import(\"../Feature.js\").FeatureLike} feature Feature.\n */\nfunction renderPolygonGeometry(builderGroup, geometry, style, feature) {\n const fillStyle = style.getFill();\n const strokeStyle = style.getStroke();\n if (fillStyle || strokeStyle) {\n const polygonReplay = builderGroup.getBuilder(\n style.getZIndex(),\n BuilderType.POLYGON\n );\n polygonReplay.setFillStrokeStyle(fillStyle, strokeStyle);\n polygonReplay.drawPolygon(geometry, feature);\n }\n const textStyle = style.getText();\n if (textStyle) {\n const textReplay = builderGroup.getBuilder(\n style.getZIndex(),\n BuilderType.TEXT\n );\n textReplay.setTextStyle(textStyle, builderGroup.addDeclutter(false));\n textReplay.drawText(geometry, feature);\n }\n}\n","/**\n * @module ol/renderer/canvas/VectorLayer\n */\nimport CanvasBuilderGroup from '../../render/canvas/BuilderGroup.js';\nimport CanvasLayerRenderer from './Layer.js';\nimport ExecutorGroup, {\n replayDeclutter,\n} from '../../render/canvas/ExecutorGroup.js';\nimport ViewHint from '../../ViewHint.js';\nimport {\n apply,\n makeInverse,\n makeScale,\n toString as transformToString,\n} from '../../transform.js';\nimport {\n buffer,\n containsExtent,\n createEmpty,\n getWidth,\n intersects as intersectsExtent,\n wrapX as wrapExtentX,\n} from '../../extent.js';\nimport {\n createHitDetectionImageData,\n hitDetect,\n} from '../../render/canvas/hitdetect.js';\nimport {\n defaultOrder as defaultRenderOrder,\n getTolerance as getRenderTolerance,\n getSquaredTolerance as getSquaredRenderTolerance,\n renderFeature,\n} from '../vector.js';\nimport {\n fromUserExtent,\n getTransformFromProjections,\n getUserProjection,\n toUserExtent,\n} from '../../proj.js';\nimport {getUid} from '../../util.js';\nimport {wrapX as wrapCoordinateX} from '../../coordinate.js';\n\n/**\n * @classdesc\n * Canvas renderer for vector layers.\n * @api\n */\nclass CanvasVectorLayerRenderer extends CanvasLayerRenderer {\n /**\n * @param {import(\"../../layer/Vector.js\").default} vectorLayer Vector layer.\n */\n constructor(vectorLayer) {\n super(vectorLayer);\n\n /** @private */\n this.boundHandleStyleImageChange_ = this.handleStyleImageChange_.bind(this);\n\n /**\n * @type {boolean}\n */\n this.animatingOrInteracting_;\n\n /**\n * @private\n * @type {boolean}\n */\n this.dirty_ = false;\n\n /**\n * @type {ImageData}\n */\n this.hitDetectionImageData_ = null;\n\n /**\n * @type {Array<import(\"../../Feature.js\").default>}\n */\n this.renderedFeatures_ = null;\n\n /**\n * @private\n * @type {number}\n */\n this.renderedRevision_ = -1;\n\n /**\n * @private\n * @type {number}\n */\n this.renderedResolution_ = NaN;\n\n /**\n * @private\n * @type {import(\"../../extent.js\").Extent}\n */\n this.renderedExtent_ = createEmpty();\n\n /**\n * @private\n * @type {number}\n */\n this.renderedRotation_;\n\n /**\n * @private\n * @type {import(\"../../coordinate\").Coordinate}\n */\n this.renderedCenter_ = null;\n\n /**\n * @private\n * @type {import(\"../../proj/Projection\").default}\n */\n this.renderedProjection_ = null;\n\n /**\n * @private\n * @type {function(import(\"../../Feature.js\").default, import(\"../../Feature.js\").default): number|null}\n */\n this.renderedRenderOrder_ = null;\n\n /**\n * @private\n * @type {import(\"../../render/canvas/ExecutorGroup\").default}\n */\n this.replayGroup_ = null;\n\n /**\n * A new replay group had to be created by `prepareFrame()`\n * @type {boolean}\n */\n this.replayGroupChanged = true;\n\n /**\n * Clipping to be performed by `renderFrame()`\n * @type {boolean}\n */\n this.clipping = true;\n }\n\n /**\n * Get a rendering container from an existing target, if compatible.\n * @param {HTMLElement} target Potential render target.\n * @param {string} transform CSS Transform.\n * @param {number} opacity Opacity.\n */\n useContainer(target, transform, opacity) {\n if (opacity < 1) {\n target = null;\n }\n super.useContainer(target, transform, opacity);\n }\n\n /**\n * Render the layer.\n * @param {import(\"../../PluggableMap.js\").FrameState} frameState Frame state.\n * @param {HTMLElement} target Target that may be used to render content to.\n * @return {HTMLElement} The rendered element.\n */\n renderFrame(frameState, target) {\n const pixelRatio = frameState.pixelRatio;\n const layerState = frameState.layerStatesArray[frameState.layerIndex];\n\n // set forward and inverse pixel transforms\n makeScale(this.pixelTransform, 1 / pixelRatio, 1 / pixelRatio);\n makeInverse(this.inversePixelTransform, this.pixelTransform);\n\n const canvasTransform = transformToString(this.pixelTransform);\n\n this.useContainer(target, canvasTransform, layerState.opacity);\n const context = this.context;\n const canvas = context.canvas;\n\n const replayGroup = this.replayGroup_;\n if (!replayGroup || replayGroup.isEmpty()) {\n if (!this.containerReused && canvas.width > 0) {\n canvas.width = 0;\n }\n return this.container;\n }\n\n // resize and clear\n const width = Math.round(frameState.size[0] * pixelRatio);\n const height = Math.round(frameState.size[1] * pixelRatio);\n if (canvas.width != width || canvas.height != height) {\n canvas.width = width;\n canvas.height = height;\n if (canvas.style.transform !== canvasTransform) {\n canvas.style.transform = canvasTransform;\n }\n } else if (!this.containerReused) {\n context.clearRect(0, 0, width, height);\n }\n\n this.preRender(context, frameState);\n\n const extent = frameState.extent;\n const viewState = frameState.viewState;\n const center = viewState.center;\n const resolution = viewState.resolution;\n const projection = viewState.projection;\n const rotation = viewState.rotation;\n const projectionExtent = projection.getExtent();\n const vectorSource = this.getLayer().getSource();\n\n // clipped rendering if layer extent is set\n let clipped = false;\n if (layerState.extent && this.clipping) {\n const layerExtent = fromUserExtent(layerState.extent, projection);\n clipped =\n !containsExtent(layerExtent, frameState.extent) &&\n intersectsExtent(layerExtent, frameState.extent);\n if (clipped) {\n this.clipUnrotated(context, frameState, layerExtent);\n }\n }\n\n const viewHints = frameState.viewHints;\n const snapToPixel = !(\n viewHints[ViewHint.ANIMATING] || viewHints[ViewHint.INTERACTING]\n );\n\n const transform = this.getRenderTransform(\n center,\n resolution,\n rotation,\n pixelRatio,\n width,\n height,\n 0\n );\n const declutterReplays = this.getLayer().getDeclutter() ? {} : null;\n replayGroup.execute(\n context,\n 1,\n transform,\n rotation,\n snapToPixel,\n undefined,\n declutterReplays\n );\n\n if (\n vectorSource.getWrapX() &&\n projection.canWrapX() &&\n !containsExtent(projectionExtent, extent)\n ) {\n let startX = extent[0];\n const worldWidth = getWidth(projectionExtent);\n let world = 0;\n let offsetX;\n while (startX < projectionExtent[0]) {\n --world;\n offsetX = worldWidth * world;\n const transform = this.getRenderTransform(\n center,\n resolution,\n rotation,\n pixelRatio,\n width,\n height,\n offsetX\n );\n replayGroup.execute(\n context,\n 1,\n transform,\n rotation,\n snapToPixel,\n undefined,\n declutterReplays\n );\n startX += worldWidth;\n }\n world = 0;\n startX = extent[2];\n while (startX > projectionExtent[2]) {\n ++world;\n offsetX = worldWidth * world;\n const transform = this.getRenderTransform(\n center,\n resolution,\n rotation,\n pixelRatio,\n width,\n height,\n offsetX\n );\n replayGroup.execute(\n context,\n 1,\n transform,\n rotation,\n snapToPixel,\n undefined,\n declutterReplays\n );\n startX -= worldWidth;\n }\n }\n if (declutterReplays) {\n const viewHints = frameState.viewHints;\n const hifi = !(\n viewHints[ViewHint.ANIMATING] || viewHints[ViewHint.INTERACTING]\n );\n replayDeclutter(\n declutterReplays,\n context,\n rotation,\n 1,\n hifi,\n frameState.declutterItems\n );\n }\n\n if (clipped) {\n context.restore();\n }\n\n this.postRender(context, frameState);\n\n const opacity = layerState.opacity;\n const container = this.container;\n if (opacity !== parseFloat(container.style.opacity)) {\n container.style.opacity = opacity === 1 ? '' : String(opacity);\n }\n\n if (this.renderedRotation_ !== viewState.rotation) {\n this.renderedRotation_ = viewState.rotation;\n this.hitDetectionImageData_ = null;\n }\n return this.container;\n }\n\n /**\n * Asynchronous layer level hit detection.\n * @param {import(\"../../pixel.js\").Pixel} pixel Pixel.\n * @return {Promise<Array<import(\"../../Feature\").default>>} Promise that resolves with an array of features.\n */\n getFeatures(pixel) {\n return new Promise(\n function (resolve, reject) {\n if (!this.hitDetectionImageData_ && !this.animatingOrInteracting_) {\n const size = [this.context.canvas.width, this.context.canvas.height];\n apply(this.pixelTransform, size);\n const center = this.renderedCenter_;\n const resolution = this.renderedResolution_;\n const rotation = this.renderedRotation_;\n const projection = this.renderedProjection_;\n const extent = this.renderedExtent_;\n const layer = this.getLayer();\n const transforms = [];\n const width = size[0] / 2;\n const height = size[1] / 2;\n transforms.push(\n this.getRenderTransform(\n center,\n resolution,\n rotation,\n 0.5,\n width,\n height,\n 0\n ).slice()\n );\n const source = layer.getSource();\n const projectionExtent = projection.getExtent();\n if (\n source.getWrapX() &&\n projection.canWrapX() &&\n !containsExtent(projectionExtent, extent)\n ) {\n let startX = extent[0];\n const worldWidth = getWidth(projectionExtent);\n let world = 0;\n let offsetX;\n while (startX < projectionExtent[0]) {\n --world;\n offsetX = worldWidth * world;\n transforms.push(\n this.getRenderTransform(\n center,\n resolution,\n rotation,\n 0.5,\n width,\n height,\n offsetX\n ).slice()\n );\n startX += worldWidth;\n }\n world = 0;\n startX = extent[2];\n while (startX > projectionExtent[2]) {\n ++world;\n offsetX = worldWidth * world;\n transforms.push(\n this.getRenderTransform(\n center,\n resolution,\n rotation,\n 0.5,\n width,\n height,\n offsetX\n ).slice()\n );\n startX -= worldWidth;\n }\n }\n\n this.hitDetectionImageData_ = createHitDetectionImageData(\n size,\n transforms,\n this.renderedFeatures_,\n layer.getStyleFunction(),\n extent,\n resolution,\n rotation\n );\n }\n resolve(\n hitDetect(pixel, this.renderedFeatures_, this.hitDetectionImageData_)\n );\n }.bind(this)\n );\n }\n\n /**\n * @param {import(\"../../coordinate.js\").Coordinate} coordinate Coordinate.\n * @param {import(\"../../PluggableMap.js\").FrameState} frameState Frame state.\n * @param {number} hitTolerance Hit tolerance in pixels.\n * @param {function(import(\"../../Feature.js\").FeatureLike, import(\"../../layer/Layer.js\").default): T} callback Feature callback.\n * @param {Array<import(\"../../Feature.js\").FeatureLike>} declutteredFeatures Decluttered features.\n * @return {T|void} Callback result.\n * @template T\n */\n forEachFeatureAtCoordinate(\n coordinate,\n frameState,\n hitTolerance,\n callback,\n declutteredFeatures\n ) {\n if (!this.replayGroup_) {\n return undefined;\n } else {\n const resolution = frameState.viewState.resolution;\n const rotation = frameState.viewState.rotation;\n const layer = this.getLayer();\n /** @type {!Object<string, boolean>} */\n const features = {};\n\n const result = this.replayGroup_.forEachFeatureAtCoordinate(\n coordinate,\n resolution,\n rotation,\n hitTolerance,\n /**\n * @param {import(\"../../Feature.js\").FeatureLike} feature Feature.\n * @return {?} Callback result.\n */\n function (feature) {\n const key = getUid(feature);\n if (!(key in features)) {\n features[key] = true;\n return callback(feature, layer);\n }\n },\n layer.getDeclutter() ? declutteredFeatures : null\n );\n\n return result;\n }\n }\n\n /**\n * Perform action necessary to get the layer rendered after new fonts have loaded\n */\n handleFontsChanged() {\n const layer = this.getLayer();\n if (layer.getVisible() && this.replayGroup_) {\n layer.changed();\n }\n }\n\n /**\n * Handle changes in image style state.\n * @param {import(\"../../events/Event.js\").default} event Image style change event.\n * @private\n */\n handleStyleImageChange_(event) {\n this.renderIfReadyAndVisible();\n }\n\n /**\n * Determine whether render should be called.\n * @param {import(\"../../PluggableMap.js\").FrameState} frameState Frame state.\n * @return {boolean} Layer is ready to be rendered.\n */\n prepareFrame(frameState) {\n const vectorLayer = this.getLayer();\n const vectorSource = vectorLayer.getSource();\n if (!vectorSource) {\n return false;\n }\n\n const animating = frameState.viewHints[ViewHint.ANIMATING];\n const interacting = frameState.viewHints[ViewHint.INTERACTING];\n const updateWhileAnimating = vectorLayer.getUpdateWhileAnimating();\n const updateWhileInteracting = vectorLayer.getUpdateWhileInteracting();\n\n if (\n (!this.dirty_ && !updateWhileAnimating && animating) ||\n (!updateWhileInteracting && interacting)\n ) {\n this.animatingOrInteracting_ = true;\n return true;\n }\n this.animatingOrInteracting_ = false;\n\n const frameStateExtent = frameState.extent;\n const viewState = frameState.viewState;\n const projection = viewState.projection;\n const resolution = viewState.resolution;\n const pixelRatio = frameState.pixelRatio;\n const vectorLayerRevision = vectorLayer.getRevision();\n const vectorLayerRenderBuffer = vectorLayer.getRenderBuffer();\n let vectorLayerRenderOrder = vectorLayer.getRenderOrder();\n\n if (vectorLayerRenderOrder === undefined) {\n vectorLayerRenderOrder = defaultRenderOrder;\n }\n\n const center = viewState.center.slice();\n const extent = buffer(\n frameStateExtent,\n vectorLayerRenderBuffer * resolution\n );\n const loadExtents = [extent.slice()];\n const projectionExtent = projection.getExtent();\n\n if (\n vectorSource.getWrapX() &&\n projection.canWrapX() &&\n !containsExtent(projectionExtent, frameState.extent)\n ) {\n // For the replay group, we need an extent that intersects the real world\n // (-180° to +180°). To support geometries in a coordinate range from -540°\n // to +540°, we add at least 1 world width on each side of the projection\n // extent. If the viewport is wider than the world, we need to add half of\n // the viewport width to make sure we cover the whole viewport.\n const worldWidth = getWidth(projectionExtent);\n const gutter = Math.max(getWidth(extent) / 2, worldWidth);\n extent[0] = projectionExtent[0] - gutter;\n extent[2] = projectionExtent[2] + gutter;\n wrapCoordinateX(center, projection);\n const loadExtent = wrapExtentX(loadExtents[0], projection);\n // If the extent crosses the date line, we load data for both edges of the worlds\n if (\n loadExtent[0] < projectionExtent[0] &&\n loadExtent[2] < projectionExtent[2]\n ) {\n loadExtents.push([\n loadExtent[0] + worldWidth,\n loadExtent[1],\n loadExtent[2] + worldWidth,\n loadExtent[3],\n ]);\n } else if (\n loadExtent[0] > projectionExtent[0] &&\n loadExtent[2] > projectionExtent[2]\n ) {\n loadExtents.push([\n loadExtent[0] - worldWidth,\n loadExtent[1],\n loadExtent[2] - worldWidth,\n loadExtent[3],\n ]);\n }\n }\n\n if (\n !this.dirty_ &&\n this.renderedResolution_ == resolution &&\n this.renderedRevision_ == vectorLayerRevision &&\n this.renderedRenderOrder_ == vectorLayerRenderOrder &&\n containsExtent(this.renderedExtent_, extent)\n ) {\n this.replayGroupChanged = false;\n return true;\n }\n\n this.replayGroup_ = null;\n\n this.dirty_ = false;\n\n const replayGroup = new CanvasBuilderGroup(\n getRenderTolerance(resolution, pixelRatio),\n extent,\n resolution,\n pixelRatio,\n vectorLayer.getDeclutter()\n );\n\n const userProjection = getUserProjection();\n let userTransform;\n if (userProjection) {\n for (let i = 0, ii = loadExtents.length; i < ii; ++i) {\n vectorSource.loadFeatures(\n toUserExtent(loadExtents[i], projection),\n resolution,\n userProjection\n );\n }\n userTransform = getTransformFromProjections(userProjection, projection);\n } else {\n for (let i = 0, ii = loadExtents.length; i < ii; ++i) {\n vectorSource.loadFeatures(loadExtents[i], resolution, projection);\n }\n }\n\n const squaredTolerance = getSquaredRenderTolerance(resolution, pixelRatio);\n\n /**\n * @param {import(\"../../Feature.js\").default} feature Feature.\n * @this {CanvasVectorLayerRenderer}\n */\n const render = function (feature) {\n let styles;\n const styleFunction =\n feature.getStyleFunction() || vectorLayer.getStyleFunction();\n if (styleFunction) {\n styles = styleFunction(feature, resolution);\n }\n if (styles) {\n const dirty = this.renderFeature(\n feature,\n squaredTolerance,\n styles,\n replayGroup,\n userTransform\n );\n this.dirty_ = this.dirty_ || dirty;\n }\n }.bind(this);\n\n const userExtent = toUserExtent(extent, projection);\n /** @type {Array<import(\"../../Feature.js\").default>} */\n const features = vectorSource.getFeaturesInExtent(userExtent);\n if (vectorLayerRenderOrder) {\n features.sort(vectorLayerRenderOrder);\n }\n for (let i = 0, ii = features.length; i < ii; ++i) {\n render(features[i]);\n }\n this.renderedFeatures_ = features;\n\n const replayGroupInstructions = replayGroup.finish();\n const executorGroup = new ExecutorGroup(\n extent,\n resolution,\n pixelRatio,\n vectorSource.getOverlaps(),\n replayGroupInstructions,\n vectorLayer.getRenderBuffer()\n );\n\n this.renderedResolution_ = resolution;\n this.renderedRevision_ = vectorLayerRevision;\n this.renderedRenderOrder_ = vectorLayerRenderOrder;\n this.renderedExtent_ = extent;\n this.renderedCenter_ = center;\n this.renderedProjection_ = projection;\n this.replayGroup_ = executorGroup;\n this.hitDetectionImageData_ = null;\n\n this.replayGroupChanged = true;\n return true;\n }\n\n /**\n * @param {import(\"../../Feature.js\").default} feature Feature.\n * @param {number} squaredTolerance Squared render tolerance.\n * @param {import(\"../../style/Style.js\").default|Array<import(\"../../style/Style.js\").default>} styles The style or array of styles.\n * @param {import(\"../../render/canvas/BuilderGroup.js\").default} builderGroup Builder group.\n * @param {import(\"../../proj.js\").TransformFunction=} opt_transform Transform from user to view projection.\n * @return {boolean} `true` if an image is loading.\n */\n renderFeature(\n feature,\n squaredTolerance,\n styles,\n builderGroup,\n opt_transform\n ) {\n if (!styles) {\n return false;\n }\n let loading = false;\n if (Array.isArray(styles)) {\n for (let i = 0, ii = styles.length; i < ii; ++i) {\n loading =\n renderFeature(\n builderGroup,\n feature,\n styles[i],\n squaredTolerance,\n this.boundHandleStyleImageChange_,\n opt_transform\n ) || loading;\n }\n } else {\n loading = renderFeature(\n builderGroup,\n feature,\n styles,\n squaredTolerance,\n this.boundHandleStyleImageChange_,\n opt_transform\n );\n }\n return loading;\n }\n}\n\nexport default CanvasVectorLayerRenderer;\n","/**\n * @module ol/layer/Vector\n */\nimport BaseVectorLayer from './BaseVector.js';\nimport CanvasVectorLayerRenderer from '../renderer/canvas/VectorLayer.js';\n\n/**\n * @classdesc\n * Vector data that is rendered client-side.\n * Note that any property set in the options is set as a {@link module:ol/Object~BaseObject}\n * property on the layer object; for example, setting `title: 'My Title'` in the\n * options means that `title` is observable, and has get/set accessors.\n *\n * @extends {BaseVectorLayer<import(\"../source/Vector.js\").default>}\n * @api\n */\nclass VectorLayer extends BaseVectorLayer {\n /**\n * @param {import(\"./BaseVector.js\").Options=} opt_options Options.\n */\n constructor(opt_options) {\n super(opt_options);\n }\n\n /**\n * Create a renderer for this layer.\n * @return {import(\"../renderer/Layer.js\").default} A layer renderer.\n */\n createRenderer() {\n return new CanvasVectorLayerRenderer(this);\n }\n}\n\nexport default VectorLayer;\n","/**\n * @module ol/structs/RBush\n */\nimport RBush_ from 'rbush/rbush.js';\nimport {createOrUpdate, equals} from '../extent.js';\nimport {getUid} from '../util.js';\nimport {isEmpty} from '../obj.js';\n\n/**\n * @typedef {Object} Entry\n * @property {number} minX\n * @property {number} minY\n * @property {number} maxX\n * @property {number} maxY\n * @property {Object} [value]\n */\n\n/**\n * @classdesc\n * Wrapper around the RBush by Vladimir Agafonkin.\n * See https://github.com/mourner/rbush.\n *\n * @template T\n */\nclass RBush {\n /**\n * @param {number=} opt_maxEntries Max entries.\n */\n constructor(opt_maxEntries) {\n /**\n * @private\n */\n this.rbush_ = new RBush_(opt_maxEntries);\n\n /**\n * A mapping between the objects added to this rbush wrapper\n * and the objects that are actually added to the internal rbush.\n * @private\n * @type {Object<string, Entry>}\n */\n this.items_ = {};\n }\n\n /**\n * Insert a value into the RBush.\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @param {T} value Value.\n */\n insert(extent, value) {\n /** @type {Entry} */\n const item = {\n minX: extent[0],\n minY: extent[1],\n maxX: extent[2],\n maxY: extent[3],\n value: value,\n };\n\n this.rbush_.insert(item);\n this.items_[getUid(value)] = item;\n }\n\n /**\n * Bulk-insert values into the RBush.\n * @param {Array<import(\"../extent.js\").Extent>} extents Extents.\n * @param {Array<T>} values Values.\n */\n load(extents, values) {\n const items = new Array(values.length);\n for (let i = 0, l = values.length; i < l; i++) {\n const extent = extents[i];\n const value = values[i];\n\n /** @type {Entry} */\n const item = {\n minX: extent[0],\n minY: extent[1],\n maxX: extent[2],\n maxY: extent[3],\n value: value,\n };\n items[i] = item;\n this.items_[getUid(value)] = item;\n }\n this.rbush_.load(items);\n }\n\n /**\n * Remove a value from the RBush.\n * @param {T} value Value.\n * @return {boolean} Removed.\n */\n remove(value) {\n const uid = getUid(value);\n\n // get the object in which the value was wrapped when adding to the\n // internal rbush. then use that object to do the removal.\n const item = this.items_[uid];\n delete this.items_[uid];\n return this.rbush_.remove(item) !== null;\n }\n\n /**\n * Update the extent of a value in the RBush.\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @param {T} value Value.\n */\n update(extent, value) {\n const item = this.items_[getUid(value)];\n const bbox = [item.minX, item.minY, item.maxX, item.maxY];\n if (!equals(bbox, extent)) {\n this.remove(value);\n this.insert(extent, value);\n }\n }\n\n /**\n * Return all values in the RBush.\n * @return {Array<T>} All.\n */\n getAll() {\n const items = this.rbush_.all();\n return items.map(function (item) {\n return item.value;\n });\n }\n\n /**\n * Return all values in the given extent.\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @return {Array<T>} All in extent.\n */\n getInExtent(extent) {\n /** @type {Entry} */\n const bbox = {\n minX: extent[0],\n minY: extent[1],\n maxX: extent[2],\n maxY: extent[3],\n };\n const items = this.rbush_.search(bbox);\n return items.map(function (item) {\n return item.value;\n });\n }\n\n /**\n * Calls a callback function with each value in the tree.\n * If the callback returns a truthy value, this value is returned without\n * checking the rest of the tree.\n * @param {function(T): *} callback Callback.\n * @return {*} Callback return value.\n */\n forEach(callback) {\n return this.forEach_(this.getAll(), callback);\n }\n\n /**\n * Calls a callback function with each value in the provided extent.\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @param {function(T): *} callback Callback.\n * @return {*} Callback return value.\n */\n forEachInExtent(extent, callback) {\n return this.forEach_(this.getInExtent(extent), callback);\n }\n\n /**\n * @param {Array<T>} values Values.\n * @param {function(T): *} callback Callback.\n * @private\n * @return {*} Callback return value.\n */\n forEach_(values, callback) {\n let result;\n for (let i = 0, l = values.length; i < l; i++) {\n result = callback(values[i]);\n if (result) {\n return result;\n }\n }\n return result;\n }\n\n /**\n * @return {boolean} Is empty.\n */\n isEmpty() {\n return isEmpty(this.items_);\n }\n\n /**\n * Remove all values from the RBush.\n */\n clear() {\n this.rbush_.clear();\n this.items_ = {};\n }\n\n /**\n * @param {import(\"../extent.js\").Extent=} opt_extent Extent.\n * @return {import(\"../extent.js\").Extent} Extent.\n */\n getExtent(opt_extent) {\n const data = this.rbush_.toJSON();\n return createOrUpdate(\n data.minX,\n data.minY,\n data.maxX,\n data.maxY,\n opt_extent\n );\n }\n\n /**\n * @param {RBush} rbush R-Tree.\n */\n concat(rbush) {\n this.rbush_.load(rbush.rbush_.all());\n for (const i in rbush.items_) {\n this.items_[i] = rbush.items_[i];\n }\n }\n}\n\nexport default RBush;\n","/**\n * @module ol/source/Source\n */\nimport BaseObject from '../Object.js';\nimport SourceState from './State.js';\nimport {abstract} from '../util.js';\nimport {get as getProjection} from '../proj.js';\n\n/**\n * A function that returns a string or an array of strings representing source\n * attributions.\n *\n * @typedef {function(import(\"../PluggableMap.js\").FrameState): (string|Array<string>)} Attribution\n */\n\n/**\n * A type that can be used to provide attribution information for data sources.\n *\n * It represents either\n * * a simple string (e.g. `'© Acme Inc.'`)\n * * an array of simple strings (e.g. `['© Acme Inc.', '© Bacme Inc.']`)\n * * a function that returns a string or array of strings ({@link module:ol/source/Source~Attribution})\n *\n * @typedef {string|Array<string>|Attribution} AttributionLike\n */\n\n/**\n * @typedef {Object} Options\n * @property {AttributionLike} [attributions]\n * @property {boolean} [attributionsCollapsible=true] Attributions are collapsible.\n * @property {import(\"../proj.js\").ProjectionLike} [projection] Projection. Default is the view projection.\n * @property {import(\"./State.js\").default} [state='ready']\n * @property {boolean} [wrapX=false]\n */\n\n/**\n * @classdesc\n * Abstract base class; normally only used for creating subclasses and not\n * instantiated in apps.\n * Base class for {@link module:ol/layer/Layer~Layer} sources.\n *\n * A generic `change` event is triggered when the state of the source changes.\n * @abstract\n * @api\n */\nclass Source extends BaseObject {\n /**\n * @param {Options} options Source options.\n */\n constructor(options) {\n super();\n\n /**\n * @private\n * @type {import(\"../proj/Projection.js\").default}\n */\n this.projection_ = getProjection(options.projection);\n\n /**\n * @private\n * @type {?Attribution}\n */\n this.attributions_ = adaptAttributions(options.attributions);\n\n /**\n * @private\n * @type {boolean}\n */\n this.attributionsCollapsible_ =\n options.attributionsCollapsible !== undefined\n ? options.attributionsCollapsible\n : true;\n\n /**\n * This source is currently loading data. Sources that defer loading to the\n * map's tile queue never set this to `true`.\n * @type {boolean}\n */\n this.loading = false;\n\n /**\n * @private\n * @type {import(\"./State.js\").default}\n */\n this.state_ =\n options.state !== undefined ? options.state : SourceState.READY;\n\n /**\n * @private\n * @type {boolean}\n */\n this.wrapX_ = options.wrapX !== undefined ? options.wrapX : false;\n }\n\n /**\n * Get the attribution function for the source.\n * @return {?Attribution} Attribution function.\n */\n getAttributions() {\n return this.attributions_;\n }\n\n /**\n * @return {boolean} Attributions are collapsible.\n */\n getAttributionsCollapsible() {\n return this.attributionsCollapsible_;\n }\n\n /**\n * Get the projection of the source.\n * @return {import(\"../proj/Projection.js\").default} Projection.\n * @api\n */\n getProjection() {\n return this.projection_;\n }\n\n /**\n * @abstract\n * @return {Array<number>|undefined} Resolutions.\n */\n getResolutions() {\n return abstract();\n }\n\n /**\n * Get the state of the source, see {@link module:ol/source/State~State} for possible states.\n * @return {import(\"./State.js\").default} State.\n * @api\n */\n getState() {\n return this.state_;\n }\n\n /**\n * @return {boolean|undefined} Wrap X.\n */\n getWrapX() {\n return this.wrapX_;\n }\n\n /**\n * @return {Object|undefined} Context options.\n */\n getContextOptions() {\n return undefined;\n }\n\n /**\n * Refreshes the source. The source will be cleared, and data from the server will be reloaded.\n * @api\n */\n refresh() {\n this.changed();\n }\n\n /**\n * Set the attributions of the source.\n * @param {AttributionLike|undefined} attributions Attributions.\n * Can be passed as `string`, `Array<string>`, {@link module:ol/source/Source~Attribution},\n * or `undefined`.\n * @api\n */\n setAttributions(attributions) {\n this.attributions_ = adaptAttributions(attributions);\n this.changed();\n }\n\n /**\n * Set the state of the source.\n * @param {import(\"./State.js\").default} state State.\n */\n setState(state) {\n this.state_ = state;\n this.changed();\n }\n}\n\n/**\n * Turns the attributions option into an attributions function.\n * @param {AttributionLike|undefined} attributionLike The attribution option.\n * @return {?Attribution} An attribution function (or null).\n */\nfunction adaptAttributions(attributionLike) {\n if (!attributionLike) {\n return null;\n }\n if (Array.isArray(attributionLike)) {\n return function (frameState) {\n return attributionLike;\n };\n }\n\n if (typeof attributionLike === 'function') {\n return attributionLike;\n }\n\n return function (frameState) {\n return [attributionLike];\n };\n}\n\nexport default Source;\n","/**\n * @module ol/source/VectorEventType\n */\n\n/**\n * @enum {string}\n */\nexport default {\n /**\n * Triggered when a feature is added to the source.\n * @event module:ol/source/Vector.VectorSourceEvent#addfeature\n * @api\n */\n ADDFEATURE: 'addfeature',\n\n /**\n * Triggered when a feature is updated.\n * @event module:ol/source/Vector.VectorSourceEvent#changefeature\n * @api\n */\n CHANGEFEATURE: 'changefeature',\n\n /**\n * Triggered when the clear method is called on the source.\n * @event module:ol/source/Vector.VectorSourceEvent#clear\n * @api\n */\n CLEAR: 'clear',\n\n /**\n * Triggered when a feature is removed from the source.\n * See {@link module:ol/source/Vector#clear source.clear()} for exceptions.\n * @event module:ol/source/Vector.VectorSourceEvent#removefeature\n * @api\n */\n REMOVEFEATURE: 'removefeature',\n};\n","/**\n * @module ol/loadingstrategy\n */\n\n/**\n * Strategy function for loading all features with a single request.\n * @param {import(\"./extent.js\").Extent} extent Extent.\n * @param {number} resolution Resolution.\n * @return {Array<import(\"./extent.js\").Extent>} Extents.\n * @api\n */\nexport function all(extent, resolution) {\n return [[-Infinity, -Infinity, Infinity, Infinity]];\n}\n\n/**\n * Strategy function for loading features based on the view's extent and\n * resolution.\n * @param {import(\"./extent.js\").Extent} extent Extent.\n * @param {number} resolution Resolution.\n * @return {Array<import(\"./extent.js\").Extent>} Extents.\n * @api\n */\nexport function bbox(extent, resolution) {\n return [extent];\n}\n\n/**\n * Creates a strategy function for loading features based on a tile grid.\n * @param {import(\"./tilegrid/TileGrid.js\").default} tileGrid Tile grid.\n * @return {function(import(\"./extent.js\").Extent, number): Array<import(\"./extent.js\").Extent>} Loading strategy.\n * @api\n */\nexport function tile(tileGrid) {\n return (\n /**\n * @param {import(\"./extent.js\").Extent} extent Extent.\n * @param {number} resolution Resolution.\n * @return {Array<import(\"./extent.js\").Extent>} Extents.\n */\n function (extent, resolution) {\n const z = tileGrid.getZForResolution(resolution);\n const tileRange = tileGrid.getTileRangeForExtentAndZ(extent, z);\n /** @type {Array<import(\"./extent.js\").Extent>} */\n const extents = [];\n /** @type {import(\"./tilecoord.js\").TileCoord} */\n const tileCoord = [z, 0, 0];\n for (\n tileCoord[1] = tileRange.minX;\n tileCoord[1] <= tileRange.maxX;\n ++tileCoord[1]\n ) {\n for (\n tileCoord[2] = tileRange.minY;\n tileCoord[2] <= tileRange.maxY;\n ++tileCoord[2]\n ) {\n extents.push(tileGrid.getTileCoordExtent(tileCoord));\n }\n }\n return extents;\n }\n );\n}\n","/**\n * @module ol/format/FormatType\n */\n\n/**\n * @enum {string}\n */\nexport default {\n ARRAY_BUFFER: 'arraybuffer',\n JSON: 'json',\n TEXT: 'text',\n XML: 'xml',\n};\n","/**\n * @module ol/featureloader\n */\nimport FormatType from './format/FormatType.js';\nimport {VOID} from './functions.js';\n\n/**\n *\n * @type {boolean}\n * @private\n */\nlet withCredentials = false;\n\n/**\n * {@link module:ol/source/Vector} sources use a function of this type to\n * load features.\n *\n * This function takes an {@link module:ol/extent~Extent} representing the area to be loaded,\n * a `{number}` representing the resolution (map units per pixel) and an\n * {@link module:ol/proj/Projection} for the projection as\n * arguments. `this` within the function is bound to the\n * {@link module:ol/source/Vector} it's called from.\n *\n * The function is responsible for loading the features and adding them to the\n * source.\n * @typedef {function(this:(import(\"./source/Vector\").default|import(\"./VectorTile.js\").default), import(\"./extent.js\").Extent, number,\n * import(\"./proj/Projection.js\").default): void} FeatureLoader\n * @api\n */\n\n/**\n * {@link module:ol/source/Vector} sources use a function of this type to\n * get the url to load features from.\n *\n * This function takes an {@link module:ol/extent~Extent} representing the area\n * to be loaded, a `{number}` representing the resolution (map units per pixel)\n * and an {@link module:ol/proj/Projection} for the projection as\n * arguments and returns a `{string}` representing the URL.\n * @typedef {function(import(\"./extent.js\").Extent, number, import(\"./proj/Projection.js\").default): string} FeatureUrlFunction\n * @api\n */\n\n/**\n * @param {string|FeatureUrlFunction} url Feature URL service.\n * @param {import(\"./format/Feature.js\").default} format Feature format.\n * @param {function(this:import(\"./VectorTile.js\").default, Array<import(\"./Feature.js\").default>, import(\"./proj/Projection.js\").default, import(\"./extent.js\").Extent): void|function(this:import(\"./source/Vector\").default, Array<import(\"./Feature.js\").default>): void} success\n * Function called with the loaded features and optionally with the data\n * projection. Called with the vector tile or source as `this`.\n * @param {function(this:import(\"./VectorTile.js\").default): void|function(this:import(\"./source/Vector\").default): void} failure\n * Function called when loading failed. Called with the vector tile or\n * source as `this`.\n * @return {FeatureLoader} The feature loader.\n */\nexport function loadFeaturesXhr(url, format, success, failure) {\n return (\n /**\n * @param {import(\"./extent.js\").Extent} extent Extent.\n * @param {number} resolution Resolution.\n * @param {import(\"./proj/Projection.js\").default} projection Projection.\n * @this {import(\"./source/Vector\").default|import(\"./VectorTile.js\").default}\n */\n function (extent, resolution, projection) {\n const xhr = new XMLHttpRequest();\n xhr.open(\n 'GET',\n typeof url === 'function' ? url(extent, resolution, projection) : url,\n true\n );\n if (format.getType() == FormatType.ARRAY_BUFFER) {\n xhr.responseType = 'arraybuffer';\n }\n xhr.withCredentials = withCredentials;\n /**\n * @param {Event} event Event.\n * @private\n */\n xhr.onload = function (event) {\n // status will be 0 for file:// urls\n if (!xhr.status || (xhr.status >= 200 && xhr.status < 300)) {\n const type = format.getType();\n /** @type {Document|Node|Object|string|undefined} */\n let source;\n if (type == FormatType.JSON || type == FormatType.TEXT) {\n source = xhr.responseText;\n } else if (type == FormatType.XML) {\n source = xhr.responseXML;\n if (!source) {\n source = new DOMParser().parseFromString(\n xhr.responseText,\n 'application/xml'\n );\n }\n } else if (type == FormatType.ARRAY_BUFFER) {\n source = /** @type {ArrayBuffer} */ (xhr.response);\n }\n if (source) {\n success.call(\n this,\n format.readFeatures(source, {\n extent: extent,\n featureProjection: projection,\n }),\n format.readProjection(source)\n );\n } else {\n failure.call(this);\n }\n } else {\n failure.call(this);\n }\n }.bind(this);\n /**\n * @private\n */\n xhr.onerror = function () {\n failure.call(this);\n }.bind(this);\n xhr.send();\n }\n );\n}\n\n/**\n * Create an XHR feature loader for a `url` and `format`. The feature loader\n * loads features (with XHR), parses the features, and adds them to the\n * vector source.\n * @param {string|FeatureUrlFunction} url Feature URL service.\n * @param {import(\"./format/Feature.js\").default} format Feature format.\n * @return {FeatureLoader} The feature loader.\n * @api\n */\nexport function xhr(url, format) {\n return loadFeaturesXhr(\n url,\n format,\n /**\n * @param {Array<import(\"./Feature.js\").default>} features The loaded features.\n * @param {import(\"./proj/Projection.js\").default} dataProjection Data\n * projection.\n * @this {import(\"./source/Vector\").default|import(\"./VectorTile.js\").default}\n */\n function (features, dataProjection) {\n const sourceOrTile = /** @type {?} */ (this);\n if (typeof sourceOrTile.addFeatures === 'function') {\n /** @type {import(\"./source/Vector\").default} */ (sourceOrTile).addFeatures(\n features\n );\n }\n },\n /* FIXME handle error */ VOID\n );\n}\n\n/**\n * Setter for the withCredentials configuration for the XHR.\n *\n * @param {boolean} xhrWithCredentials The value of withCredentials to set.\n * Compare https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/\n * @api\n */\nexport function setWithCredentials(xhrWithCredentials) {\n withCredentials = xhrWithCredentials;\n}\n","/**\n * @module ol/source/Vector\n */\n\nimport Collection from '../Collection.js';\nimport CollectionEventType from '../CollectionEventType.js';\nimport Event from '../events/Event.js';\nimport EventType from '../events/EventType.js';\nimport ObjectEventType from '../ObjectEventType.js';\nimport RBush from '../structs/RBush.js';\nimport Source from './Source.js';\nimport SourceState from './State.js';\nimport VectorEventType from './VectorEventType.js';\nimport {TRUE, VOID} from '../functions.js';\nimport {all as allStrategy} from '../loadingstrategy.js';\nimport {assert} from '../asserts.js';\nimport {containsExtent, equals} from '../extent.js';\nimport {extend} from '../array.js';\nimport {getUid} from '../util.js';\nimport {getValues, isEmpty} from '../obj.js';\nimport {listen, unlistenByKey} from '../events.js';\nimport {xhr} from '../featureloader.js';\n\n/**\n * A function that takes an {@link module:ol/extent~Extent} and a resolution as arguments, and\n * returns an array of {@link module:ol/extent~Extent} with the extents to load. Usually this\n * is one of the standard {@link module:ol/loadingstrategy} strategies.\n *\n * @typedef {function(import(\"../extent.js\").Extent, number): Array<import(\"../extent.js\").Extent>} LoadingStrategy\n * @api\n */\n\n/**\n * @classdesc\n * Events emitted by {@link module:ol/source/Vector} instances are instances of this\n * type.\n * @template {import(\"../geom/Geometry.js\").default} Geometry\n */\nexport class VectorSourceEvent extends Event {\n /**\n * @param {string} type Type.\n * @param {import(\"../Feature.js\").default<Geometry>=} opt_feature Feature.\n */\n constructor(type, opt_feature) {\n super(type);\n\n /**\n * The feature being added or removed.\n * @type {import(\"../Feature.js\").default<Geometry>|undefined}\n * @api\n */\n this.feature = opt_feature;\n }\n}\n\n/**\n * @typedef {Object} Options\n * @property {import(\"./Source.js\").AttributionLike} [attributions] Attributions.\n * @property {Array<import(\"../Feature.js\").default>|Collection<import(\"../Feature.js\").default>} [features]\n * Features. If provided as {@link module:ol/Collection}, the features in the source\n * and the collection will stay in sync.\n * @property {import(\"../format/Feature.js\").default} [format] The feature format used by the XHR\n * feature loader when `url` is set. Required if `url` is set, otherwise ignored.\n * @property {import(\"../featureloader.js\").FeatureLoader} [loader]\n * The loader function used to load features, from a remote source for example.\n * If this is not set and `url` is set, the source will create and use an XHR\n * feature loader.\n *\n * Example:\n *\n * ```js\n * import {Vector} from 'ol/source';\n * import {GeoJSON} from 'ol/format';\n * import {bbox} from 'ol/loadingstrategy';\n *\n * var vectorSource = new Vector({\n * format: new GeoJSON(),\n * loader: function(extent, resolution, projection) {\n * var proj = projection.getCode();\n * var url = 'https://ahocevar.com/geoserver/wfs?service=WFS&' +\n * 'version=1.1.0&request=GetFeature&typename=osm:water_areas&' +\n * 'outputFormat=application/json&srsname=' + proj + '&' +\n * 'bbox=' + extent.join(',') + ',' + proj;\n * var xhr = new XMLHttpRequest();\n * xhr.open('GET', url);\n * var onError = function() {\n * vectorSource.removeLoadedExtent(extent);\n * }\n * xhr.onerror = onError;\n * xhr.onload = function() {\n * if (xhr.status == 200) {\n * vectorSource.addFeatures(\n * vectorSource.getFormat().readFeatures(xhr.responseText));\n * } else {\n * onError();\n * }\n * }\n * xhr.send();\n * },\n * strategy: bbox\n * });\n * ```\n * @property {boolean} [overlaps=true] This source may have overlapping geometries.\n * Setting this to `false` (e.g. for sources with polygons that represent administrative\n * boundaries or TopoJSON sources) allows the renderer to optimise fill and\n * stroke operations.\n * @property {LoadingStrategy} [strategy] The loading strategy to use.\n * By default an {@link module:ol/loadingstrategy~all}\n * strategy is used, a one-off strategy which loads all features at once.\n * @property {string|import(\"../featureloader.js\").FeatureUrlFunction} [url]\n * Setting this option instructs the source to load features using an XHR loader\n * (see {@link module:ol/featureloader~xhr}). Use a `string` and an\n * {@link module:ol/loadingstrategy~all} for a one-off download of all features from\n * the given URL. Use a {@link module:ol/featureloader~FeatureUrlFunction} to generate the url with\n * other loading strategies.\n * Requires `format` to be set as well.\n * When default XHR feature loader is provided, the features will\n * be transformed from the data projection to the view projection\n * during parsing. If your remote data source does not advertise its projection\n * properly, this transformation will be incorrect. For some formats, the\n * default projection (usually EPSG:4326) can be overridden by setting the\n * dataProjection constructor option on the format.\n * Note that if a source contains non-feature data, such as a GeoJSON geometry\n * or a KML NetworkLink, these will be ignored. Use a custom loader to load these.\n * @property {boolean} [useSpatialIndex=true]\n * By default, an RTree is used as spatial index. When features are removed and\n * added frequently, and the total number of features is low, setting this to\n * `false` may improve performance.\n *\n * Note that\n * {@link module:ol/source/Vector~VectorSource#getFeaturesInExtent},\n * {@link module:ol/source/Vector~VectorSource#getClosestFeatureToCoordinate} and\n * {@link module:ol/source/Vector~VectorSource#getExtent} cannot be used when `useSpatialIndex` is\n * set to `false`, and {@link module:ol/source/Vector~VectorSource#forEachFeatureInExtent} will loop\n * through all features.\n *\n * When set to `false`, the features will be maintained in an\n * {@link module:ol/Collection}, which can be retrieved through\n * {@link module:ol/source/Vector~VectorSource#getFeaturesCollection}.\n * @property {boolean} [wrapX=true] Wrap the world horizontally. For vector editing across the\n * -180° and 180° meridians to work properly, this should be set to `false`. The\n * resulting geometry coordinates will then exceed the world bounds.\n */\n\n/**\n * @classdesc\n * Provides a source of features for vector layers. Vector features provided\n * by this source are suitable for editing. See {@link module:ol/source/VectorTile~VectorTile} for\n * vector data that is optimized for rendering.\n *\n * @fires VectorSourceEvent\n * @api\n * @template {import(\"../geom/Geometry.js\").default} Geometry\n */\nclass VectorSource extends Source {\n /**\n * @param {Options=} opt_options Vector source options.\n */\n constructor(opt_options) {\n const options = opt_options || {};\n\n super({\n attributions: options.attributions,\n projection: undefined,\n state: SourceState.READY,\n wrapX: options.wrapX !== undefined ? options.wrapX : true,\n });\n\n /**\n * @private\n * @type {import(\"../featureloader.js\").FeatureLoader}\n */\n this.loader_ = VOID;\n\n /**\n * @private\n * @type {import(\"../format/Feature.js\").default|undefined}\n */\n this.format_ = options.format;\n\n /**\n * @private\n * @type {boolean}\n */\n this.overlaps_ = options.overlaps === undefined ? true : options.overlaps;\n\n /**\n * @private\n * @type {string|import(\"../featureloader.js\").FeatureUrlFunction|undefined}\n */\n this.url_ = options.url;\n\n if (options.loader !== undefined) {\n this.loader_ = options.loader;\n } else if (this.url_ !== undefined) {\n assert(this.format_, 7); // `format` must be set when `url` is set\n // create a XHR feature loader for \"url\" and \"format\"\n this.loader_ = xhr(\n this.url_,\n /** @type {import(\"../format/Feature.js\").default} */ (this.format_)\n );\n }\n\n /**\n * @private\n * @type {LoadingStrategy}\n */\n this.strategy_ =\n options.strategy !== undefined ? options.strategy : allStrategy;\n\n const useSpatialIndex =\n options.useSpatialIndex !== undefined ? options.useSpatialIndex : true;\n\n /**\n * @private\n * @type {RBush<import(\"../Feature.js\").default<Geometry>>}\n */\n this.featuresRtree_ = useSpatialIndex ? new RBush() : null;\n\n /**\n * @private\n * @type {RBush<{extent: import(\"../extent.js\").Extent}>}\n */\n this.loadedExtentsRtree_ = new RBush();\n\n /**\n * @private\n * @type {!Object<string, import(\"../Feature.js\").default<Geometry>>}\n */\n this.nullGeometryFeatures_ = {};\n\n /**\n * A lookup of features by id (the return from feature.getId()).\n * @private\n * @type {!Object<string, import(\"../Feature.js\").default<Geometry>>}\n */\n this.idIndex_ = {};\n\n /**\n * A lookup of features by uid (using getUid(feature)).\n * @private\n * @type {!Object<string, import(\"../Feature.js\").default<Geometry>>}\n */\n this.uidIndex_ = {};\n\n /**\n * @private\n * @type {Object<string, Array<import(\"../events.js\").EventsKey>>}\n */\n this.featureChangeKeys_ = {};\n\n /**\n * @private\n * @type {Collection<import(\"../Feature.js\").default<Geometry>>}\n */\n this.featuresCollection_ = null;\n\n let collection, features;\n if (Array.isArray(options.features)) {\n features = options.features;\n } else if (options.features) {\n collection = options.features;\n features = collection.getArray();\n }\n if (!useSpatialIndex && collection === undefined) {\n collection = new Collection(features);\n }\n if (features !== undefined) {\n this.addFeaturesInternal(features);\n }\n if (collection !== undefined) {\n this.bindFeaturesCollection_(collection);\n }\n }\n\n /**\n * Add a single feature to the source. If you want to add a batch of features\n * at once, call {@link module:ol/source/Vector~VectorSource#addFeatures #addFeatures()}\n * instead. A feature will not be added to the source if feature with\n * the same id is already there. The reason for this behavior is to avoid\n * feature duplication when using bbox or tile loading strategies.\n * Note: this also applies if an {@link module:ol/Collection} is used for features,\n * meaning that if a feature with a duplicate id is added in the collection, it will\n * be removed from it right away.\n * @param {import(\"../Feature.js\").default<Geometry>} feature Feature to add.\n * @api\n */\n addFeature(feature) {\n this.addFeatureInternal(feature);\n this.changed();\n }\n\n /**\n * Add a feature without firing a `change` event.\n * @param {import(\"../Feature.js\").default<Geometry>} feature Feature.\n * @protected\n */\n addFeatureInternal(feature) {\n const featureKey = getUid(feature);\n\n if (!this.addToIndex_(featureKey, feature)) {\n if (this.featuresCollection_) {\n this.featuresCollection_.remove(feature);\n }\n return;\n }\n\n this.setupChangeEvents_(featureKey, feature);\n\n const geometry = feature.getGeometry();\n if (geometry) {\n const extent = geometry.getExtent();\n if (this.featuresRtree_) {\n this.featuresRtree_.insert(extent, feature);\n }\n } else {\n this.nullGeometryFeatures_[featureKey] = feature;\n }\n\n this.dispatchEvent(\n new VectorSourceEvent(VectorEventType.ADDFEATURE, feature)\n );\n }\n\n /**\n * @param {string} featureKey Unique identifier for the feature.\n * @param {import(\"../Feature.js\").default<Geometry>} feature The feature.\n * @private\n */\n setupChangeEvents_(featureKey, feature) {\n this.featureChangeKeys_[featureKey] = [\n listen(feature, EventType.CHANGE, this.handleFeatureChange_, this),\n listen(\n feature,\n ObjectEventType.PROPERTYCHANGE,\n this.handleFeatureChange_,\n this\n ),\n ];\n }\n\n /**\n * @param {string} featureKey Unique identifier for the feature.\n * @param {import(\"../Feature.js\").default<Geometry>} feature The feature.\n * @return {boolean} The feature is \"valid\", in the sense that it is also a\n * candidate for insertion into the Rtree.\n * @private\n */\n addToIndex_(featureKey, feature) {\n let valid = true;\n const id = feature.getId();\n if (id !== undefined) {\n if (!(id.toString() in this.idIndex_)) {\n this.idIndex_[id.toString()] = feature;\n } else {\n valid = false;\n }\n }\n if (valid) {\n assert(!(featureKey in this.uidIndex_), 30); // The passed `feature` was already added to the source\n this.uidIndex_[featureKey] = feature;\n }\n return valid;\n }\n\n /**\n * Add a batch of features to the source.\n * @param {Array<import(\"../Feature.js\").default<Geometry>>} features Features to add.\n * @api\n */\n addFeatures(features) {\n this.addFeaturesInternal(features);\n this.changed();\n }\n\n /**\n * Add features without firing a `change` event.\n * @param {Array<import(\"../Feature.js\").default<Geometry>>} features Features.\n * @protected\n */\n addFeaturesInternal(features) {\n const extents = [];\n const newFeatures = [];\n const geometryFeatures = [];\n\n for (let i = 0, length = features.length; i < length; i++) {\n const feature = features[i];\n const featureKey = getUid(feature);\n if (this.addToIndex_(featureKey, feature)) {\n newFeatures.push(feature);\n }\n }\n\n for (let i = 0, length = newFeatures.length; i < length; i++) {\n const feature = newFeatures[i];\n const featureKey = getUid(feature);\n this.setupChangeEvents_(featureKey, feature);\n\n const geometry = feature.getGeometry();\n if (geometry) {\n const extent = geometry.getExtent();\n extents.push(extent);\n geometryFeatures.push(feature);\n } else {\n this.nullGeometryFeatures_[featureKey] = feature;\n }\n }\n if (this.featuresRtree_) {\n this.featuresRtree_.load(extents, geometryFeatures);\n }\n\n for (let i = 0, length = newFeatures.length; i < length; i++) {\n this.dispatchEvent(\n new VectorSourceEvent(VectorEventType.ADDFEATURE, newFeatures[i])\n );\n }\n }\n\n /**\n * @param {!Collection<import(\"../Feature.js\").default<Geometry>>} collection Collection.\n * @private\n */\n bindFeaturesCollection_(collection) {\n let modifyingCollection = false;\n this.addEventListener(\n VectorEventType.ADDFEATURE,\n /**\n * @param {VectorSourceEvent<Geometry>} evt The vector source event\n */\n function (evt) {\n if (!modifyingCollection) {\n modifyingCollection = true;\n collection.push(evt.feature);\n modifyingCollection = false;\n }\n }\n );\n this.addEventListener(\n VectorEventType.REMOVEFEATURE,\n /**\n * @param {VectorSourceEvent<Geometry>} evt The vector source event\n */\n function (evt) {\n if (!modifyingCollection) {\n modifyingCollection = true;\n collection.remove(evt.feature);\n modifyingCollection = false;\n }\n }\n );\n collection.addEventListener(\n CollectionEventType.ADD,\n /**\n * @param {import(\"../Collection.js\").CollectionEvent} evt The collection event\n */\n function (evt) {\n if (!modifyingCollection) {\n modifyingCollection = true;\n this.addFeature(\n /** @type {import(\"../Feature.js\").default<Geometry>} */ (evt.element)\n );\n modifyingCollection = false;\n }\n }.bind(this)\n );\n collection.addEventListener(\n CollectionEventType.REMOVE,\n /**\n * @param {import(\"../Collection.js\").CollectionEvent} evt The collection event\n */\n function (evt) {\n if (!modifyingCollection) {\n modifyingCollection = true;\n this.removeFeature(\n /** @type {import(\"../Feature.js\").default<Geometry>} */ (evt.element)\n );\n modifyingCollection = false;\n }\n }.bind(this)\n );\n this.featuresCollection_ = collection;\n }\n\n /**\n * Remove all features from the source.\n * @param {boolean=} opt_fast Skip dispatching of {@link module:ol/source/Vector.VectorSourceEvent#removefeature} events.\n * @api\n */\n clear(opt_fast) {\n if (opt_fast) {\n for (const featureId in this.featureChangeKeys_) {\n const keys = this.featureChangeKeys_[featureId];\n keys.forEach(unlistenByKey);\n }\n if (!this.featuresCollection_) {\n this.featureChangeKeys_ = {};\n this.idIndex_ = {};\n this.uidIndex_ = {};\n }\n } else {\n if (this.featuresRtree_) {\n this.featuresRtree_.forEach(this.removeFeatureInternal.bind(this));\n for (const id in this.nullGeometryFeatures_) {\n this.removeFeatureInternal(this.nullGeometryFeatures_[id]);\n }\n }\n }\n if (this.featuresCollection_) {\n this.featuresCollection_.clear();\n }\n\n if (this.featuresRtree_) {\n this.featuresRtree_.clear();\n }\n this.nullGeometryFeatures_ = {};\n\n const clearEvent = new VectorSourceEvent(VectorEventType.CLEAR);\n this.dispatchEvent(clearEvent);\n this.changed();\n }\n\n /**\n * Iterate through all features on the source, calling the provided callback\n * with each one. If the callback returns any \"truthy\" value, iteration will\n * stop and the function will return the same value.\n * Note: this function only iterate through the feature that have a defined geometry.\n *\n * @param {function(import(\"../Feature.js\").default<Geometry>): T} callback Called with each feature\n * on the source. Return a truthy value to stop iteration.\n * @return {T|undefined} The return value from the last call to the callback.\n * @template T\n * @api\n */\n forEachFeature(callback) {\n if (this.featuresRtree_) {\n return this.featuresRtree_.forEach(callback);\n } else if (this.featuresCollection_) {\n this.featuresCollection_.forEach(callback);\n }\n }\n\n /**\n * Iterate through all features whose geometries contain the provided\n * coordinate, calling the callback with each feature. If the callback returns\n * a \"truthy\" value, iteration will stop and the function will return the same\n * value.\n *\n * @param {import(\"../coordinate.js\").Coordinate} coordinate Coordinate.\n * @param {function(import(\"../Feature.js\").default<Geometry>): T} callback Called with each feature\n * whose goemetry contains the provided coordinate.\n * @return {T|undefined} The return value from the last call to the callback.\n * @template T\n */\n forEachFeatureAtCoordinateDirect(coordinate, callback) {\n const extent = [coordinate[0], coordinate[1], coordinate[0], coordinate[1]];\n return this.forEachFeatureInExtent(extent, function (feature) {\n const geometry = feature.getGeometry();\n if (geometry.intersectsCoordinate(coordinate)) {\n return callback(feature);\n } else {\n return undefined;\n }\n });\n }\n\n /**\n * Iterate through all features whose bounding box intersects the provided\n * extent (note that the feature's geometry may not intersect the extent),\n * calling the callback with each feature. If the callback returns a \"truthy\"\n * value, iteration will stop and the function will return the same value.\n *\n * If you are interested in features whose geometry intersects an extent, call\n * the {@link module:ol/source/Vector~VectorSource#forEachFeatureIntersectingExtent #forEachFeatureIntersectingExtent()} method instead.\n *\n * When `useSpatialIndex` is set to false, this method will loop through all\n * features, equivalent to {@link module:ol/source/Vector~VectorSource#forEachFeature #forEachFeature()}.\n *\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @param {function(import(\"../Feature.js\").default<Geometry>): T} callback Called with each feature\n * whose bounding box intersects the provided extent.\n * @return {T|undefined} The return value from the last call to the callback.\n * @template T\n * @api\n */\n forEachFeatureInExtent(extent, callback) {\n if (this.featuresRtree_) {\n return this.featuresRtree_.forEachInExtent(extent, callback);\n } else if (this.featuresCollection_) {\n this.featuresCollection_.forEach(callback);\n }\n }\n\n /**\n * Iterate through all features whose geometry intersects the provided extent,\n * calling the callback with each feature. If the callback returns a \"truthy\"\n * value, iteration will stop and the function will return the same value.\n *\n * If you only want to test for bounding box intersection, call the\n * {@link module:ol/source/Vector~VectorSource#forEachFeatureInExtent #forEachFeatureInExtent()} method instead.\n *\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @param {function(import(\"../Feature.js\").default<Geometry>): T} callback Called with each feature\n * whose geometry intersects the provided extent.\n * @return {T|undefined} The return value from the last call to the callback.\n * @template T\n * @api\n */\n forEachFeatureIntersectingExtent(extent, callback) {\n return this.forEachFeatureInExtent(\n extent,\n /**\n * @param {import(\"../Feature.js\").default<Geometry>} feature Feature.\n * @return {T|undefined} The return value from the last call to the callback.\n */\n function (feature) {\n const geometry = feature.getGeometry();\n if (geometry.intersectsExtent(extent)) {\n const result = callback(feature);\n if (result) {\n return result;\n }\n }\n }\n );\n }\n\n /**\n * Get the features collection associated with this source. Will be `null`\n * unless the source was configured with `useSpatialIndex` set to `false`, or\n * with an {@link module:ol/Collection} as `features`.\n * @return {Collection<import(\"../Feature.js\").default<Geometry>>} The collection of features.\n * @api\n */\n getFeaturesCollection() {\n return this.featuresCollection_;\n }\n\n /**\n * Get all features on the source in random order.\n * @return {Array<import(\"../Feature.js\").default<Geometry>>} Features.\n * @api\n */\n getFeatures() {\n let features;\n if (this.featuresCollection_) {\n features = this.featuresCollection_.getArray();\n } else if (this.featuresRtree_) {\n features = this.featuresRtree_.getAll();\n if (!isEmpty(this.nullGeometryFeatures_)) {\n extend(features, getValues(this.nullGeometryFeatures_));\n }\n }\n return /** @type {Array<import(\"../Feature.js\").default<Geometry>>} */ (features);\n }\n\n /**\n * Get all features whose geometry intersects the provided coordinate.\n * @param {import(\"../coordinate.js\").Coordinate} coordinate Coordinate.\n * @return {Array<import(\"../Feature.js\").default<Geometry>>} Features.\n * @api\n */\n getFeaturesAtCoordinate(coordinate) {\n const features = [];\n this.forEachFeatureAtCoordinateDirect(coordinate, function (feature) {\n features.push(feature);\n });\n return features;\n }\n\n /**\n * Get all features whose bounding box intersects the provided extent. Note that this returns an array of\n * all features intersecting the given extent in random order (so it may include\n * features whose geometries do not intersect the extent).\n *\n * When `useSpatialIndex` is set to false, this method will return all\n * features.\n *\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @return {Array<import(\"../Feature.js\").default<Geometry>>} Features.\n * @api\n */\n getFeaturesInExtent(extent) {\n if (this.featuresRtree_) {\n return this.featuresRtree_.getInExtent(extent);\n } else if (this.featuresCollection_) {\n return this.featuresCollection_.getArray();\n } else {\n return [];\n }\n }\n\n /**\n * Get the closest feature to the provided coordinate.\n *\n * This method is not available when the source is configured with\n * `useSpatialIndex` set to `false`.\n * @param {import(\"../coordinate.js\").Coordinate} coordinate Coordinate.\n * @param {function(import(\"../Feature.js\").default<Geometry>):boolean=} opt_filter Feature filter function.\n * The filter function will receive one argument, the {@link module:ol/Feature feature}\n * and it should return a boolean value. By default, no filtering is made.\n * @return {import(\"../Feature.js\").default<Geometry>} Closest feature.\n * @api\n */\n getClosestFeatureToCoordinate(coordinate, opt_filter) {\n // Find the closest feature using branch and bound. We start searching an\n // infinite extent, and find the distance from the first feature found. This\n // becomes the closest feature. We then compute a smaller extent which any\n // closer feature must intersect. We continue searching with this smaller\n // extent, trying to find a closer feature. Every time we find a closer\n // feature, we update the extent being searched so that any even closer\n // feature must intersect it. We continue until we run out of features.\n const x = coordinate[0];\n const y = coordinate[1];\n let closestFeature = null;\n const closestPoint = [NaN, NaN];\n let minSquaredDistance = Infinity;\n const extent = [-Infinity, -Infinity, Infinity, Infinity];\n const filter = opt_filter ? opt_filter : TRUE;\n this.featuresRtree_.forEachInExtent(\n extent,\n /**\n * @param {import(\"../Feature.js\").default<Geometry>} feature Feature.\n */\n function (feature) {\n if (filter(feature)) {\n const geometry = feature.getGeometry();\n const previousMinSquaredDistance = minSquaredDistance;\n minSquaredDistance = geometry.closestPointXY(\n x,\n y,\n closestPoint,\n minSquaredDistance\n );\n if (minSquaredDistance < previousMinSquaredDistance) {\n closestFeature = feature;\n // This is sneaky. Reduce the extent that it is currently being\n // searched while the R-Tree traversal using this same extent object\n // is still in progress. This is safe because the new extent is\n // strictly contained by the old extent.\n const minDistance = Math.sqrt(minSquaredDistance);\n extent[0] = x - minDistance;\n extent[1] = y - minDistance;\n extent[2] = x + minDistance;\n extent[3] = y + minDistance;\n }\n }\n }\n );\n return closestFeature;\n }\n\n /**\n * Get the extent of the features currently in the source.\n *\n * This method is not available when the source is configured with\n * `useSpatialIndex` set to `false`.\n * @param {import(\"../extent.js\").Extent=} opt_extent Destination extent. If provided, no new extent\n * will be created. Instead, that extent's coordinates will be overwritten.\n * @return {import(\"../extent.js\").Extent} Extent.\n * @api\n */\n getExtent(opt_extent) {\n return this.featuresRtree_.getExtent(opt_extent);\n }\n\n /**\n * Get a feature by its identifier (the value returned by feature.getId()).\n * Note that the index treats string and numeric identifiers as the same. So\n * `source.getFeatureById(2)` will return a feature with id `'2'` or `2`.\n *\n * @param {string|number} id Feature identifier.\n * @return {import(\"../Feature.js\").default<Geometry>} The feature (or `null` if not found).\n * @api\n */\n getFeatureById(id) {\n const feature = this.idIndex_[id.toString()];\n return feature !== undefined ? feature : null;\n }\n\n /**\n * Get a feature by its internal unique identifier (using `getUid`).\n *\n * @param {string} uid Feature identifier.\n * @return {import(\"../Feature.js\").default<Geometry>} The feature (or `null` if not found).\n */\n getFeatureByUid(uid) {\n const feature = this.uidIndex_[uid];\n return feature !== undefined ? feature : null;\n }\n\n /**\n * Get the format associated with this source.\n *\n * @return {import(\"../format/Feature.js\").default|undefined} The feature format.\n * @api\n */\n getFormat() {\n return this.format_;\n }\n\n /**\n * @return {boolean} The source can have overlapping geometries.\n */\n getOverlaps() {\n return this.overlaps_;\n }\n\n /**\n * Get the url associated with this source.\n *\n * @return {string|import(\"../featureloader.js\").FeatureUrlFunction|undefined} The url.\n * @api\n */\n getUrl() {\n return this.url_;\n }\n\n /**\n * @param {Event} event Event.\n * @private\n */\n handleFeatureChange_(event) {\n const feature = /** @type {import(\"../Feature.js\").default<Geometry>} */ (event.target);\n const featureKey = getUid(feature);\n const geometry = feature.getGeometry();\n if (!geometry) {\n if (!(featureKey in this.nullGeometryFeatures_)) {\n if (this.featuresRtree_) {\n this.featuresRtree_.remove(feature);\n }\n this.nullGeometryFeatures_[featureKey] = feature;\n }\n } else {\n const extent = geometry.getExtent();\n if (featureKey in this.nullGeometryFeatures_) {\n delete this.nullGeometryFeatures_[featureKey];\n if (this.featuresRtree_) {\n this.featuresRtree_.insert(extent, feature);\n }\n } else {\n if (this.featuresRtree_) {\n this.featuresRtree_.update(extent, feature);\n }\n }\n }\n const id = feature.getId();\n if (id !== undefined) {\n const sid = id.toString();\n if (this.idIndex_[sid] !== feature) {\n this.removeFromIdIndex_(feature);\n this.idIndex_[sid] = feature;\n }\n } else {\n this.removeFromIdIndex_(feature);\n this.uidIndex_[featureKey] = feature;\n }\n this.changed();\n this.dispatchEvent(\n new VectorSourceEvent(VectorEventType.CHANGEFEATURE, feature)\n );\n }\n\n /**\n * Returns true if the feature is contained within the source.\n * @param {import(\"../Feature.js\").default<Geometry>} feature Feature.\n * @return {boolean} Has feature.\n * @api\n */\n hasFeature(feature) {\n const id = feature.getId();\n if (id !== undefined) {\n return id in this.idIndex_;\n } else {\n return getUid(feature) in this.uidIndex_;\n }\n }\n\n /**\n * @return {boolean} Is empty.\n */\n isEmpty() {\n return this.featuresRtree_.isEmpty() && isEmpty(this.nullGeometryFeatures_);\n }\n\n /**\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @param {number} resolution Resolution.\n * @param {import(\"../proj/Projection.js\").default} projection Projection.\n */\n loadFeatures(extent, resolution, projection) {\n const loadedExtentsRtree = this.loadedExtentsRtree_;\n const extentsToLoad = this.strategy_(extent, resolution);\n this.loading = false;\n for (let i = 0, ii = extentsToLoad.length; i < ii; ++i) {\n const extentToLoad = extentsToLoad[i];\n const alreadyLoaded = loadedExtentsRtree.forEachInExtent(\n extentToLoad,\n /**\n * @param {{extent: import(\"../extent.js\").Extent}} object Object.\n * @return {boolean} Contains.\n */\n function (object) {\n return containsExtent(object.extent, extentToLoad);\n }\n );\n if (!alreadyLoaded) {\n this.loader_.call(this, extentToLoad, resolution, projection);\n loadedExtentsRtree.insert(extentToLoad, {extent: extentToLoad.slice()});\n this.loading = this.loader_ !== VOID;\n }\n }\n }\n\n refresh() {\n this.clear(true);\n this.loadedExtentsRtree_.clear();\n super.refresh();\n }\n\n /**\n * Remove an extent from the list of loaded extents.\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @api\n */\n removeLoadedExtent(extent) {\n const loadedExtentsRtree = this.loadedExtentsRtree_;\n let obj;\n loadedExtentsRtree.forEachInExtent(extent, function (object) {\n if (equals(object.extent, extent)) {\n obj = object;\n return true;\n }\n });\n if (obj) {\n loadedExtentsRtree.remove(obj);\n }\n }\n\n /**\n * Remove a single feature from the source. If you want to remove all features\n * at once, use the {@link module:ol/source/Vector~VectorSource#clear #clear()} method\n * instead.\n * @param {import(\"../Feature.js\").default<Geometry>} feature Feature to remove.\n * @api\n */\n removeFeature(feature) {\n const featureKey = getUid(feature);\n if (featureKey in this.nullGeometryFeatures_) {\n delete this.nullGeometryFeatures_[featureKey];\n } else {\n if (this.featuresRtree_) {\n this.featuresRtree_.remove(feature);\n }\n }\n this.removeFeatureInternal(feature);\n this.changed();\n }\n\n /**\n * Remove feature without firing a `change` event.\n * @param {import(\"../Feature.js\").default<Geometry>} feature Feature.\n * @protected\n */\n removeFeatureInternal(feature) {\n const featureKey = getUid(feature);\n this.featureChangeKeys_[featureKey].forEach(unlistenByKey);\n delete this.featureChangeKeys_[featureKey];\n const id = feature.getId();\n if (id !== undefined) {\n delete this.idIndex_[id.toString()];\n }\n delete this.uidIndex_[featureKey];\n this.dispatchEvent(\n new VectorSourceEvent(VectorEventType.REMOVEFEATURE, feature)\n );\n }\n\n /**\n * Remove a feature from the id index. Called internally when the feature id\n * may have changed.\n * @param {import(\"../Feature.js\").default<Geometry>} feature The feature.\n * @return {boolean} Removed the feature from the index.\n * @private\n */\n removeFromIdIndex_(feature) {\n let removed = false;\n for (const id in this.idIndex_) {\n if (this.idIndex_[id] === feature) {\n delete this.idIndex_[id];\n removed = true;\n break;\n }\n }\n return removed;\n }\n\n /**\n * Set the new loader of the source. The next render cycle will use the\n * new loader.\n * @param {import(\"../featureloader.js\").FeatureLoader} loader The loader to set.\n * @api\n */\n setLoader(loader) {\n this.loader_ = loader;\n }\n\n /**\n * Points the source to a new url. The next render cycle will use the new url.\n * @param {string|import(\"../featureloader.js\").FeatureUrlFunction} url Url.\n * @api\n */\n setUrl(url) {\n assert(this.format_, 7); // `format` must be set when `url` is set\n this.setLoader(xhr(url, this.format_));\n }\n}\n\nexport default VectorSource;\n","/**\n * @module ol/render\n */\nimport CanvasImmediateRenderer from './render/canvas/Immediate.js';\nimport {DEVICE_PIXEL_RATIO} from './has.js';\nimport {\n apply as applyTransform,\n create as createTransform,\n multiply as multiplyTransform,\n scale as scaleTransform,\n} from './transform.js';\nimport {getSquaredTolerance} from './renderer/vector.js';\nimport {getTransformFromProjections, getUserProjection} from './proj.js';\n\n/**\n * @typedef {Object} State\n * @property {CanvasRenderingContext2D} context Canvas context that the layer is being rendered to.\n * @property {import(\"./Feature.js\").FeatureLike} feature\n * @property {import(\"./geom/SimpleGeometry.js\").default} geometry\n * @property {number} pixelRatio Pixel ratio used by the layer renderer.\n * @property {number} resolution Resolution that the render batch was created and optimized for.\n * This is not the view's resolution that is being rendered.\n * @property {number} rotation Rotation of the rendered layer in radians.\n */\n\n/**\n * A function to be used when sorting features before rendering.\n * It takes two instances of {@link module:ol/Feature} or\n * {@link module:ol/render/Feature} and returns a `{number}`.\n *\n * @typedef {function(import(\"./Feature.js\").FeatureLike, import(\"./Feature.js\").FeatureLike):number} OrderFunction\n */\n\n/**\n * @typedef {Object} ToContextOptions\n * @property {import(\"./size.js\").Size} [size] Desired size of the canvas in css\n * pixels. When provided, both canvas and css size will be set according to the\n * `pixelRatio`. If not provided, the current canvas and css sizes will not be\n * altered.\n * @property {number} [pixelRatio=window.devicePixelRatio] Pixel ratio (canvas\n * pixel to css pixel ratio) for the canvas.\n */\n\n/**\n * Binds a Canvas Immediate API to a canvas context, to allow drawing geometries\n * to the context's canvas.\n *\n * The units for geometry coordinates are css pixels relative to the top left\n * corner of the canvas element.\n * ```js\n * import {toContext} from 'ol/render';\n * import Fill from 'ol/style/Fill';\n * import Polygon from 'ol/geom/Polygon';\n *\n * var canvas = document.createElement('canvas');\n * var render = toContext(canvas.getContext('2d'),\n * { size: [100, 100] });\n * render.setFillStrokeStyle(new Fill({ color: blue }));\n * render.drawPolygon(\n * new Polygon([[[0, 0], [100, 100], [100, 0], [0, 0]]]));\n * ```\n *\n * @param {CanvasRenderingContext2D} context Canvas context.\n * @param {ToContextOptions=} opt_options Options.\n * @return {CanvasImmediateRenderer} Canvas Immediate.\n * @api\n */\nexport function toContext(context, opt_options) {\n const canvas = context.canvas;\n const options = opt_options ? opt_options : {};\n const pixelRatio = options.pixelRatio || DEVICE_PIXEL_RATIO;\n const size = options.size;\n if (size) {\n canvas.width = size[0] * pixelRatio;\n canvas.height = size[1] * pixelRatio;\n canvas.style.width = size[0] + 'px';\n canvas.style.height = size[1] + 'px';\n }\n const extent = [0, 0, canvas.width, canvas.height];\n const transform = scaleTransform(createTransform(), pixelRatio, pixelRatio);\n return new CanvasImmediateRenderer(context, pixelRatio, extent, transform, 0);\n}\n\n/**\n * Gets a vector context for drawing to the event's canvas.\n * @param {import(\"./render/Event.js\").default} event Render event.\n * @returns {CanvasImmediateRenderer} Vector context.\n * @api\n */\nexport function getVectorContext(event) {\n const frameState = event.frameState;\n const transform = multiplyTransform(\n event.inversePixelTransform.slice(),\n frameState.coordinateToPixelTransform\n );\n const squaredTolerance = getSquaredTolerance(\n frameState.viewState.resolution,\n frameState.pixelRatio\n );\n let userTransform;\n const userProjection = getUserProjection();\n if (userProjection) {\n userTransform = getTransformFromProjections(\n userProjection,\n frameState.viewState.projection\n );\n }\n return new CanvasImmediateRenderer(\n event.context,\n frameState.pixelRatio,\n frameState.extent,\n transform,\n frameState.viewState.rotation,\n squaredTolerance,\n userTransform\n );\n}\n\n/**\n * Gets the pixel of the event's canvas context from the map viewport's CSS pixel.\n * @param {import(\"./render/Event.js\").default} event Render event.\n * @param {import(\"./pixel.js\").Pixel} pixel CSS pixel relative to the top-left\n * corner of the map viewport.\n * @returns {import(\"./pixel.js\").Pixel} Pixel on the event's canvas context.\n * @api\n */\nexport function getRenderPixel(event, pixel) {\n const result = pixel.slice(0);\n applyTransform(event.inversePixelTransform.slice(), result);\n return result;\n}\n\n/**\n * @param {import(\"./PluggableMap.js\").FrameState} frameState Frame state.\n * @param {?} declutterTree Declutter tree.\n * @returns {?} Declutter tree.\n */\nexport function renderDeclutterItems(frameState, declutterTree) {\n if (declutterTree) {\n declutterTree.clear();\n }\n const items = frameState.declutterItems;\n for (let z = items.length - 1; z >= 0; --z) {\n const item = items[z];\n const zIndexItems = item.items;\n for (let i = 0, ii = zIndexItems.length; i < ii; i += 3) {\n declutterTree = zIndexItems[i].renderDeclutter(\n zIndexItems[i + 1],\n zIndexItems[i + 2],\n item.opacity,\n declutterTree\n );\n }\n }\n items.length = 0;\n return declutterTree;\n}\n","/**\n * @module ol/geom/flat/geodesic\n */\nimport {get as getProjection, getTransform} from '../../proj.js';\nimport {squaredSegmentDistance, toDegrees, toRadians} from '../../math.js';\n\n/**\n * @param {function(number): import(\"../../coordinate.js\").Coordinate} interpolate Interpolate function.\n * @param {import(\"../../proj.js\").TransformFunction} transform Transform from longitude/latitude to\n * projected coordinates.\n * @param {number} squaredTolerance Squared tolerance.\n * @return {Array<number>} Flat coordinates.\n */\nfunction line(interpolate, transform, squaredTolerance) {\n // FIXME reduce garbage generation\n // FIXME optimize stack operations\n\n /** @type {Array<number>} */\n const flatCoordinates = [];\n\n let geoA = interpolate(0);\n let geoB = interpolate(1);\n\n let a = transform(geoA);\n let b = transform(geoB);\n\n /** @type {Array<import(\"../../coordinate.js\").Coordinate>} */\n const geoStack = [geoB, geoA];\n /** @type {Array<import(\"../../coordinate.js\").Coordinate>} */\n const stack = [b, a];\n /** @type {Array<number>} */\n const fractionStack = [1, 0];\n\n /** @type {!Object<string, boolean>} */\n const fractions = {};\n\n let maxIterations = 1e5;\n let geoM, m, fracA, fracB, fracM, key;\n\n while (--maxIterations > 0 && fractionStack.length > 0) {\n // Pop the a coordinate off the stack\n fracA = fractionStack.pop();\n geoA = geoStack.pop();\n a = stack.pop();\n // Add the a coordinate if it has not been added yet\n key = fracA.toString();\n if (!(key in fractions)) {\n flatCoordinates.push(a[0], a[1]);\n fractions[key] = true;\n }\n // Pop the b coordinate off the stack\n fracB = fractionStack.pop();\n geoB = geoStack.pop();\n b = stack.pop();\n // Find the m point between the a and b coordinates\n fracM = (fracA + fracB) / 2;\n geoM = interpolate(fracM);\n m = transform(geoM);\n if (\n squaredSegmentDistance(m[0], m[1], a[0], a[1], b[0], b[1]) <\n squaredTolerance\n ) {\n // If the m point is sufficiently close to the straight line, then we\n // discard it. Just use the b coordinate and move on to the next line\n // segment.\n flatCoordinates.push(b[0], b[1]);\n key = fracB.toString();\n fractions[key] = true;\n } else {\n // Otherwise, we need to subdivide the current line segment. Split it\n // into two and push the two line segments onto the stack.\n fractionStack.push(fracB, fracM, fracM, fracA);\n stack.push(b, m, m, a);\n geoStack.push(geoB, geoM, geoM, geoA);\n }\n }\n\n return flatCoordinates;\n}\n\n/**\n * Generate a great-circle arcs between two lat/lon points.\n * @param {number} lon1 Longitude 1 in degrees.\n * @param {number} lat1 Latitude 1 in degrees.\n * @param {number} lon2 Longitude 2 in degrees.\n * @param {number} lat2 Latitude 2 in degrees.\n * @param {import(\"../../proj/Projection.js\").default} projection Projection.\n * @param {number} squaredTolerance Squared tolerance.\n * @return {Array<number>} Flat coordinates.\n */\nexport function greatCircleArc(\n lon1,\n lat1,\n lon2,\n lat2,\n projection,\n squaredTolerance\n) {\n const geoProjection = getProjection('EPSG:4326');\n\n const cosLat1 = Math.cos(toRadians(lat1));\n const sinLat1 = Math.sin(toRadians(lat1));\n const cosLat2 = Math.cos(toRadians(lat2));\n const sinLat2 = Math.sin(toRadians(lat2));\n const cosDeltaLon = Math.cos(toRadians(lon2 - lon1));\n const sinDeltaLon = Math.sin(toRadians(lon2 - lon1));\n const d = sinLat1 * sinLat2 + cosLat1 * cosLat2 * cosDeltaLon;\n\n return line(\n /**\n * @param {number} frac Fraction.\n * @return {import(\"../../coordinate.js\").Coordinate} Coordinate.\n */\n function (frac) {\n if (1 <= d) {\n return [lon2, lat2];\n }\n const D = frac * Math.acos(d);\n const cosD = Math.cos(D);\n const sinD = Math.sin(D);\n const y = sinDeltaLon * cosLat2;\n const x = cosLat1 * sinLat2 - sinLat1 * cosLat2 * cosDeltaLon;\n const theta = Math.atan2(y, x);\n const lat = Math.asin(sinLat1 * cosD + cosLat1 * sinD * Math.cos(theta));\n const lon =\n toRadians(lon1) +\n Math.atan2(\n Math.sin(theta) * sinD * cosLat1,\n cosD - sinLat1 * Math.sin(lat)\n );\n return [toDegrees(lon), toDegrees(lat)];\n },\n getTransform(geoProjection, projection),\n squaredTolerance\n );\n}\n\n/**\n * Generate a meridian (line at constant longitude).\n * @param {number} lon Longitude.\n * @param {number} lat1 Latitude 1.\n * @param {number} lat2 Latitude 2.\n * @param {import(\"../../proj/Projection.js\").default} projection Projection.\n * @param {number} squaredTolerance Squared tolerance.\n * @return {Array<number>} Flat coordinates.\n */\nexport function meridian(lon, lat1, lat2, projection, squaredTolerance) {\n const epsg4326Projection = getProjection('EPSG:4326');\n return line(\n /**\n * @param {number} frac Fraction.\n * @return {import(\"../../coordinate.js\").Coordinate} Coordinate.\n */\n function (frac) {\n return [lon, lat1 + (lat2 - lat1) * frac];\n },\n getTransform(epsg4326Projection, projection),\n squaredTolerance\n );\n}\n\n/**\n * Generate a parallel (line at constant latitude).\n * @param {number} lat Latitude.\n * @param {number} lon1 Longitude 1.\n * @param {number} lon2 Longitude 2.\n * @param {import(\"../../proj/Projection.js\").default} projection Projection.\n * @param {number} squaredTolerance Squared tolerance.\n * @return {Array<number>} Flat coordinates.\n */\nexport function parallel(lat, lon1, lon2, projection, squaredTolerance) {\n const epsg4326Projection = getProjection('EPSG:4326');\n return line(\n /**\n * @param {number} frac Fraction.\n * @return {import(\"../../coordinate.js\").Coordinate} Coordinate.\n */\n function (frac) {\n return [lon1 + (lon2 - lon1) * frac, lat];\n },\n getTransform(epsg4326Projection, projection),\n squaredTolerance\n );\n}\n","/**\n * @module ol/layer/Graticule\n */\nimport Collection from '../Collection.js';\nimport EventType from '../render/EventType.js';\nimport Feature from '../Feature.js';\nimport Fill from '../style/Fill.js';\nimport GeometryLayout from '../geom/GeometryLayout.js';\nimport LineString from '../geom/LineString.js';\nimport Point from '../geom/Point.js';\nimport Stroke from '../style/Stroke.js';\nimport Style from '../style/Style.js';\nimport Text from '../style/Text.js';\nimport VectorLayer from './Vector.js';\nimport VectorSource from '../source/Vector.js';\nimport {\n applyTransform,\n approximatelyEquals,\n containsCoordinate,\n containsExtent,\n equals,\n getCenter,\n getHeight,\n getIntersection,\n getWidth,\n intersects,\n isEmpty,\n wrapX as wrapExtentX,\n} from '../extent.js';\nimport {assign} from '../obj.js';\nimport {clamp} from '../math.js';\nimport {degreesToStringHDMS} from '../coordinate.js';\nimport {\n equivalent as equivalentProjection,\n get as getProjection,\n getTransform,\n} from '../proj.js';\nimport {getVectorContext} from '../render.js';\nimport {meridian, parallel} from '../geom/flat/geodesic.js';\n\n/**\n * @type {Stroke}\n * @private\n * @const\n */\nconst DEFAULT_STROKE_STYLE = new Stroke({\n color: 'rgba(0,0,0,0.2)',\n});\n\n/**\n * @type {Array<number>}\n * @private\n */\nconst INTERVALS = [\n 90,\n 45,\n 30,\n 20,\n 10,\n 5,\n 2,\n 1,\n 0.5,\n 0.2,\n 0.1,\n 0.05,\n 0.01,\n 0.005,\n 0.002,\n 0.001,\n];\n\n/**\n * @typedef {Object} GraticuleLabelDataType\n * @property {Point} geom\n * @property {string} text\n */\n\n/**\n * @typedef {Object} Options\n * @property {string} [className='ol-layer'] A CSS class name to set to the layer element.\n * @property {number} [opacity=1] Opacity (0, 1).\n * @property {boolean} [visible=true] Visibility.\n * @property {import(\"../extent.js\").Extent} [extent] The bounding extent for layer rendering. The layer will not be\n * rendered outside of this extent.\n * @property {number} [zIndex] The z-index for layer rendering. At rendering time, the layers\n * will be ordered, first by Z-index and then by position. When `undefined`, a `zIndex` of 0 is assumed\n * for layers that are added to the map's `layers` collection, or `Infinity` when the layer's `setMap()`\n * method was used.\n * @property {number} [minResolution] The minimum resolution (inclusive) at which this layer will be\n * visible.\n * @property {number} [maxResolution] The maximum resolution (exclusive) below which this layer will\n * be visible.\n * @property {number} [minZoom] The minimum view zoom level (exclusive) above which this layer will be\n * visible.\n * @property {number} [maxZoom] The maximum view zoom level (inclusive) at which this layer will\n * be visible.\n * @property {number} [maxLines=100] The maximum number of meridians and\n * parallels from the center of the map. The default value of 100 means that at\n * most 200 meridians and 200 parallels will be displayed. The default value is\n * appropriate for conformal projections like Spherical Mercator. If you\n * increase the value, more lines will be drawn and the drawing performance will\n * decrease.\n * @property {Stroke} [strokeStyle='rgba(0,0,0,0.2)'] The\n * stroke style to use for drawing the graticule. If not provided, a not fully\n * opaque black will be used.\n * @property {number} [targetSize=100] The target size of the graticule cells,\n * in pixels.\n * @property {boolean} [showLabels=false] Render a label with the respective\n * latitude/longitude for each graticule line.\n * @property {function(number):string} [lonLabelFormatter] Label formatter for\n * longitudes. This function is called with the longitude as argument, and\n * should return a formatted string representing the longitude. By default,\n * labels are formatted as degrees, minutes, seconds and hemisphere.\n * @property {function(number):string} [latLabelFormatter] Label formatter for\n * latitudes. This function is called with the latitude as argument, and\n * should return a formatted string representing the latitude. By default,\n * labels are formatted as degrees, minutes, seconds and hemisphere.\n * @property {number} [lonLabelPosition=0] Longitude label position in fractions\n * (0..1) of view extent. 0 means at the bottom of the viewport, 1 means at the\n * top.\n * @property {number} [latLabelPosition=1] Latitude label position in fractions\n * (0..1) of view extent. 0 means at the left of the viewport, 1 means at the\n * right.\n * @property {Text} [lonLabelStyle] Longitude label text\n * style. If not provided, the following style will be used:\n * ```js\n * new Text({\n * font: '12px Calibri,sans-serif',\n * textBaseline: 'bottom',\n * fill: new Fill({\n * color: 'rgba(0,0,0,1)'\n * }),\n * stroke: new Stroke({\n * color: 'rgba(255,255,255,1)',\n * width: 3\n * })\n * });\n * ```\n * Note that the default's `textBaseline` configuration will not work well for\n * `lonLabelPosition` configurations that position labels close to the top of\n * the viewport.\n * @property {Text} [latLabelStyle] Latitude label text style.\n * If not provided, the following style will be used:\n * ```js\n * new Text({\n * font: '12px Calibri,sans-serif',\n * textAlign: 'end',\n * fill: new Fill({\n * color: 'rgba(0,0,0,1)'\n * }),\n * stroke: Stroke({\n * color: 'rgba(255,255,255,1)',\n * width: 3\n * })\n * });\n * ```\n * Note that the default's `textAlign` configuration will not work well for\n * `latLabelPosition` configurations that position labels close to the left of\n * the viewport.\n * @property {Array<number>} [intervals=[90, 45, 30, 20, 10, 5, 2, 1, 0.5, 0.2, 0.1, 0.05, 0.01, 0.005, 0.002, 0.001]]\n * Intervals (in degrees) for the graticule. Example to limit graticules to 30 and 10 degrees intervals:\n * ```js\n * [30, 10]\n * ```\n * @property {boolean} [wrapX=true] Whether to repeat the graticule horizontally.\n */\n\n/**\n * @classdesc\n * Layer that renders a grid for a coordinate system (currently only EPSG:4326 is supported).\n * Note that the view projection must define both extent and worldExtent.\n *\n * @fires import(\"../render/Event.js\").RenderEvent\n * @api\n */\nclass Graticule extends VectorLayer {\n /**\n * @param {Options=} opt_options Options.\n */\n constructor(opt_options) {\n const options = opt_options ? opt_options : {};\n\n const baseOptions = assign(\n {\n updateWhileAnimating: true,\n updateWhileInteracting: true,\n renderBuffer: 0,\n },\n options\n );\n\n delete baseOptions.maxLines;\n delete baseOptions.strokeStyle;\n delete baseOptions.targetSize;\n delete baseOptions.showLabels;\n delete baseOptions.lonLabelFormatter;\n delete baseOptions.latLabelFormatter;\n delete baseOptions.lonLabelPosition;\n delete baseOptions.latLabelPosition;\n delete baseOptions.lonLabelStyle;\n delete baseOptions.latLabelStyle;\n delete baseOptions.intervals;\n super(baseOptions);\n\n /**\n * @type {import(\"../proj/Projection.js\").default}\n */\n this.projection_ = null;\n\n /**\n * @type {number}\n * @private\n */\n this.maxLat_ = Infinity;\n\n /**\n * @type {number}\n * @private\n */\n this.maxLon_ = Infinity;\n\n /**\n * @type {number}\n * @private\n */\n this.minLat_ = -Infinity;\n\n /**\n * @type {number}\n * @private\n */\n this.minLon_ = -Infinity;\n\n /**\n * @type {number}\n * @private\n */\n this.maxX_ = Infinity;\n\n /**\n * @type {number}\n * @private\n */\n this.maxY_ = Infinity;\n\n /**\n * @type {number}\n * @private\n */\n this.minX_ = -Infinity;\n\n /**\n * @type {number}\n * @private\n */\n this.minY_ = -Infinity;\n\n /**\n * @type {number}\n * @private\n */\n this.targetSize_ =\n options.targetSize !== undefined ? options.targetSize : 100;\n\n /**\n * @type {number}\n * @private\n */\n this.maxLines_ = options.maxLines !== undefined ? options.maxLines : 100;\n\n /**\n * @type {Array<LineString>}\n * @private\n */\n this.meridians_ = [];\n\n /**\n * @type {Array<LineString>}\n * @private\n */\n this.parallels_ = [];\n\n /**\n * @type {Stroke}\n * @private\n */\n this.strokeStyle_ =\n options.strokeStyle !== undefined\n ? options.strokeStyle\n : DEFAULT_STROKE_STYLE;\n\n /**\n * @type {import(\"../proj.js\").TransformFunction|undefined}\n * @private\n */\n this.fromLonLatTransform_ = undefined;\n\n /**\n * @type {import(\"../proj.js\").TransformFunction|undefined}\n * @private\n */\n this.toLonLatTransform_ = undefined;\n\n /**\n * @type {import(\"../coordinate.js\").Coordinate}\n * @private\n */\n this.projectionCenterLonLat_ = null;\n\n /**\n * @type {import(\"../coordinate.js\").Coordinate}\n * @private\n */\n this.bottomLeft_ = null;\n\n /**\n * @type {import(\"../coordinate.js\").Coordinate}\n * @private\n */\n this.bottomRight_ = null;\n\n /**\n * @type {import(\"../coordinate.js\").Coordinate}\n * @private\n */\n this.topLeft_ = null;\n\n /**\n * @type {import(\"../coordinate.js\").Coordinate}\n * @private\n */\n this.topRight_ = null;\n\n /**\n * @type {Array<GraticuleLabelDataType>}\n * @private\n */\n this.meridiansLabels_ = null;\n\n /**\n * @type {Array<GraticuleLabelDataType>}\n * @private\n */\n this.parallelsLabels_ = null;\n\n if (options.showLabels) {\n /**\n * @type {null|function(number):string}\n * @private\n */\n this.lonLabelFormatter_ =\n options.lonLabelFormatter == undefined\n ? degreesToStringHDMS.bind(this, 'EW')\n : options.lonLabelFormatter;\n\n /**\n * @type {function(number):string}\n * @private\n */\n this.latLabelFormatter_ =\n options.latLabelFormatter == undefined\n ? degreesToStringHDMS.bind(this, 'NS')\n : options.latLabelFormatter;\n\n /**\n * Longitude label position in fractions (0..1) of view extent. 0 means\n * bottom, 1 means top.\n * @type {number}\n * @private\n */\n this.lonLabelPosition_ =\n options.lonLabelPosition == undefined ? 0 : options.lonLabelPosition;\n\n /**\n * Latitude Label position in fractions (0..1) of view extent. 0 means left, 1\n * means right.\n * @type {number}\n * @private\n */\n this.latLabelPosition_ =\n options.latLabelPosition == undefined ? 1 : options.latLabelPosition;\n\n /**\n * @type {Style}\n * @private\n */\n this.lonLabelStyleBase_ = new Style({\n text:\n options.lonLabelStyle !== undefined\n ? options.lonLabelStyle.clone()\n : new Text({\n font: '12px Calibri,sans-serif',\n textBaseline: 'bottom',\n fill: new Fill({\n color: 'rgba(0,0,0,1)',\n }),\n stroke: new Stroke({\n color: 'rgba(255,255,255,1)',\n width: 3,\n }),\n }),\n });\n\n /**\n * @private\n * @param {import(\"../Feature\").default} feature Feature\n * @return {Style} style\n */\n this.lonLabelStyle_ = function (feature) {\n const label = feature.get('graticule_label');\n this.lonLabelStyleBase_.getText().setText(label);\n return this.lonLabelStyleBase_;\n }.bind(this);\n\n /**\n * @type {Style}\n * @private\n */\n this.latLabelStyleBase_ = new Style({\n text:\n options.latLabelStyle !== undefined\n ? options.latLabelStyle.clone()\n : new Text({\n font: '12px Calibri,sans-serif',\n textAlign: 'right',\n fill: new Fill({\n color: 'rgba(0,0,0,1)',\n }),\n stroke: new Stroke({\n color: 'rgba(255,255,255,1)',\n width: 3,\n }),\n }),\n });\n\n /**\n * @private\n * @param {import(\"../Feature\").default} feature Feature\n * @return {Style} style\n */\n this.latLabelStyle_ = function (feature) {\n const label = feature.get('graticule_label');\n this.latLabelStyleBase_.getText().setText(label);\n return this.latLabelStyleBase_;\n }.bind(this);\n\n this.meridiansLabels_ = [];\n this.parallelsLabels_ = [];\n\n this.addEventListener(EventType.POSTRENDER, this.drawLabels_.bind(this));\n }\n\n /**\n * @type {Array<number>}\n * @private\n */\n this.intervals_ =\n options.intervals !== undefined ? options.intervals : INTERVALS;\n\n // use a source with a custom loader for lines & text\n this.setSource(\n new VectorSource({\n loader: this.loaderFunction.bind(this),\n strategy: this.strategyFunction.bind(this),\n features: new Collection(),\n overlaps: false,\n useSpatialIndex: false,\n wrapX: options.wrapX,\n })\n );\n\n /**\n * feature pool to use when updating graticule\n * @type {Array<Feature>}\n * @private\n */\n this.featurePool_ = [];\n\n /**\n * @type {Style}\n * @private\n */\n this.lineStyle_ = new Style({\n stroke: this.strokeStyle_,\n });\n\n /**\n * @type {?import(\"../extent.js\").Extent}\n * @private\n */\n this.loadedExtent_ = null;\n\n /**\n * @type {?import(\"../extent.js\").Extent}\n */\n this.renderedExtent_ = null;\n\n this.setRenderOrder(null);\n }\n\n /**\n * Strategy function for loading features based on the view's extent and\n * resolution.\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @param {number} resolution Resolution.\n * @return {Array<import(\"../extent.js\").Extent>} Extents.\n */\n strategyFunction(extent, resolution) {\n // extents may be passed in different worlds, to avoid endless loop we use only one\n let realWorldExtent = extent.slice();\n if (this.projection_ && this.getSource().getWrapX()) {\n wrapExtentX(realWorldExtent, this.projection_);\n }\n if (this.loadedExtent_) {\n if (\n approximatelyEquals(this.loadedExtent_, realWorldExtent, resolution)\n ) {\n // make sure result is exactly equal to previous extent\n realWorldExtent = this.loadedExtent_.slice();\n } else {\n // we should not keep track of loaded extents\n this.getSource().removeLoadedExtent(this.loadedExtent_);\n }\n }\n return [realWorldExtent];\n }\n\n /**\n * Update geometries in the source based on current view\n * @param {import(\"../extent\").Extent} extent Extent\n * @param {number} resolution Resolution\n * @param {import(\"../proj/Projection.js\").default} projection Projection\n */\n loaderFunction(extent, resolution, projection) {\n this.loadedExtent_ = extent;\n const source = this.getSource();\n\n // only consider the intersection between our own extent & the requested one\n const layerExtent = this.getExtent() || [\n -Infinity,\n -Infinity,\n Infinity,\n Infinity,\n ];\n const renderExtent = getIntersection(layerExtent, extent);\n\n if (this.renderedExtent_ && equals(this.renderedExtent_, renderExtent)) {\n return;\n }\n this.renderedExtent_ = renderExtent;\n\n // bail out if nothing to render\n if (isEmpty(renderExtent)) {\n return;\n }\n\n // update projection info\n const center = getCenter(renderExtent);\n const squaredTolerance = (resolution * resolution) / 4;\n\n const updateProjectionInfo =\n !this.projection_ || !equivalentProjection(this.projection_, projection);\n\n if (updateProjectionInfo) {\n this.updateProjectionInfo_(projection);\n }\n\n this.createGraticule_(renderExtent, center, resolution, squaredTolerance);\n\n // first make sure we have enough features in the pool\n let featureCount = this.meridians_.length + this.parallels_.length;\n if (this.meridiansLabels_) {\n featureCount += this.meridians_.length;\n }\n if (this.parallelsLabels_) {\n featureCount += this.parallels_.length;\n }\n\n let feature;\n while (featureCount > this.featurePool_.length) {\n feature = new Feature();\n this.featurePool_.push(feature);\n }\n\n const featuresColl = source.getFeaturesCollection();\n featuresColl.clear();\n let poolIndex = 0;\n\n // add features for the lines & labels\n let i, l;\n for (i = 0, l = this.meridians_.length; i < l; ++i) {\n feature = this.featurePool_[poolIndex++];\n feature.setGeometry(this.meridians_[i]);\n feature.setStyle(this.lineStyle_);\n featuresColl.push(feature);\n }\n for (i = 0, l = this.parallels_.length; i < l; ++i) {\n feature = this.featurePool_[poolIndex++];\n feature.setGeometry(this.parallels_[i]);\n feature.setStyle(this.lineStyle_);\n featuresColl.push(feature);\n }\n }\n\n /**\n * @param {number} lon Longitude.\n * @param {number} minLat Minimal latitude.\n * @param {number} maxLat Maximal latitude.\n * @param {number} squaredTolerance Squared tolerance.\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @param {number} index Index.\n * @return {number} Index.\n * @private\n */\n addMeridian_(lon, minLat, maxLat, squaredTolerance, extent, index) {\n const lineString = this.getMeridian_(\n lon,\n minLat,\n maxLat,\n squaredTolerance,\n index\n );\n if (intersects(lineString.getExtent(), extent)) {\n if (this.meridiansLabels_) {\n const text = this.lonLabelFormatter_(lon);\n if (index in this.meridiansLabels_) {\n this.meridiansLabels_[index].text = text;\n } else {\n this.meridiansLabels_[index] = {\n geom: new Point([]),\n text: text,\n };\n }\n }\n this.meridians_[index++] = lineString;\n }\n return index;\n }\n\n /**\n * @param {number} lat Latitude.\n * @param {number} minLon Minimal longitude.\n * @param {number} maxLon Maximal longitude.\n * @param {number} squaredTolerance Squared tolerance.\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @param {number} index Index.\n * @return {number} Index.\n * @private\n */\n addParallel_(lat, minLon, maxLon, squaredTolerance, extent, index) {\n const lineString = this.getParallel_(\n lat,\n minLon,\n maxLon,\n squaredTolerance,\n index\n );\n if (intersects(lineString.getExtent(), extent)) {\n if (this.parallelsLabels_) {\n const text = this.latLabelFormatter_(lat);\n if (index in this.parallelsLabels_) {\n this.parallelsLabels_[index].text = text;\n } else {\n this.parallelsLabels_[index] = {\n geom: new Point([]),\n text: text,\n };\n }\n }\n this.parallels_[index++] = lineString;\n }\n return index;\n }\n\n /**\n * @param {import(\"../render/Event.js\").default} event Render event.\n * @private\n */\n drawLabels_(event) {\n const rotation = event.frameState.viewState.rotation;\n const extent = event.frameState.extent;\n const rotationCenter = getCenter(extent);\n let rotationExtent = extent;\n if (rotation) {\n const width = getWidth(extent);\n const height = getHeight(extent);\n const cr = Math.abs(Math.cos(rotation));\n const sr = Math.abs(Math.sin(rotation));\n const unrotatedWidth = (sr * height - cr * width) / (sr * sr - cr * cr);\n const unrotatedHeight = (sr * width - cr * height) / (sr * sr - cr * cr);\n rotationExtent = [\n rotationCenter[0] - unrotatedWidth / 2,\n rotationCenter[1] - unrotatedHeight / 2,\n rotationCenter[0] + unrotatedWidth / 2,\n rotationCenter[1] + unrotatedHeight / 2,\n ];\n }\n\n let startWorld = 0;\n let endWorld = 0;\n let labelsAtStart = this.latLabelPosition_ < 0.5;\n const projectionExtent = this.projection_.getExtent();\n const worldWidth = getWidth(projectionExtent);\n if (\n this.getSource().getWrapX() &&\n this.projection_.canWrapX() &&\n !containsExtent(projectionExtent, extent)\n ) {\n startWorld = Math.floor((extent[0] - projectionExtent[0]) / worldWidth);\n endWorld = Math.ceil((extent[2] - projectionExtent[2]) / worldWidth);\n const inverted = Math.abs(rotation) > Math.PI / 2;\n labelsAtStart = labelsAtStart !== inverted;\n }\n const vectorContext = getVectorContext(event);\n\n for (let world = startWorld; world <= endWorld; ++world) {\n let poolIndex = this.meridians_.length + this.parallels_.length;\n let feature, index, l, textPoint;\n\n if (this.meridiansLabels_) {\n for (index = 0, l = this.meridiansLabels_.length; index < l; ++index) {\n const lineString = this.meridians_[index];\n if (!rotation && world === 0) {\n textPoint = this.getMeridianPoint_(lineString, extent, index);\n } else {\n const clone = lineString.clone();\n clone.translate(world * worldWidth, 0);\n clone.rotate(-rotation, rotationCenter);\n textPoint = this.getMeridianPoint_(clone, rotationExtent, index);\n textPoint.rotate(rotation, rotationCenter);\n }\n feature = this.featurePool_[poolIndex++];\n feature.setGeometry(textPoint);\n feature.set('graticule_label', this.meridiansLabels_[index].text);\n vectorContext.drawFeature(feature, this.lonLabelStyle_(feature));\n }\n }\n if (this.parallelsLabels_) {\n if (\n (world === startWorld && labelsAtStart) ||\n (world === endWorld && !labelsAtStart)\n ) {\n for (index = 0, l = this.parallels_.length; index < l; ++index) {\n const lineString = this.parallels_[index];\n if (!rotation && world === 0) {\n textPoint = this.getParallelPoint_(lineString, extent, index);\n } else {\n const clone = lineString.clone();\n clone.translate(world * worldWidth, 0);\n clone.rotate(-rotation, rotationCenter);\n textPoint = this.getParallelPoint_(clone, rotationExtent, index);\n textPoint.rotate(rotation, rotationCenter);\n }\n feature = this.featurePool_[poolIndex++];\n feature.setGeometry(textPoint);\n feature.set('graticule_label', this.parallelsLabels_[index].text);\n vectorContext.drawFeature(feature, this.latLabelStyle_(feature));\n }\n }\n }\n }\n }\n\n /**\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @param {import(\"../coordinate.js\").Coordinate} center Center.\n * @param {number} resolution Resolution.\n * @param {number} squaredTolerance Squared tolerance.\n * @private\n */\n createGraticule_(extent, center, resolution, squaredTolerance) {\n const interval = this.getInterval_(resolution);\n if (interval == -1) {\n this.meridians_.length = 0;\n this.parallels_.length = 0;\n if (this.meridiansLabels_) {\n this.meridiansLabels_.length = 0;\n }\n if (this.parallelsLabels_) {\n this.parallelsLabels_.length = 0;\n }\n return;\n }\n\n let wrapX = false;\n const projectionExtent = this.projection_.getExtent();\n const worldWidth = getWidth(projectionExtent);\n if (\n this.getSource().getWrapX() &&\n this.projection_.canWrapX() &&\n !containsExtent(projectionExtent, extent)\n ) {\n if (getWidth(extent) >= worldWidth) {\n extent[0] = projectionExtent[0];\n extent[2] = projectionExtent[2];\n } else {\n wrapX = true;\n }\n }\n\n // Constrain the center to fit into the extent available to the graticule\n\n const validCenterP = [\n clamp(center[0], this.minX_, this.maxX_),\n clamp(center[1], this.minY_, this.maxY_),\n ];\n\n // Transform the center to lon lat\n // Some projections may have a void area at the poles\n // so replace any NaN latitudes with the min or max value closest to a pole\n\n const centerLonLat = this.toLonLatTransform_(validCenterP);\n if (isNaN(centerLonLat[1])) {\n centerLonLat[1] =\n Math.abs(this.maxLat_) >= Math.abs(this.minLat_)\n ? this.maxLat_\n : this.minLat_;\n }\n let centerLon = clamp(centerLonLat[0], this.minLon_, this.maxLon_);\n let centerLat = clamp(centerLonLat[1], this.minLat_, this.maxLat_);\n const maxLines = this.maxLines_;\n let cnt, idx, lat, lon;\n\n // Limit the extent to fit into the extent available to the graticule\n\n let validExtentP = extent;\n if (!wrapX) {\n validExtentP = [\n clamp(extent[0], this.minX_, this.maxX_),\n clamp(extent[1], this.minY_, this.maxY_),\n clamp(extent[2], this.minX_, this.maxX_),\n clamp(extent[3], this.minY_, this.maxY_),\n ];\n }\n\n // Transform the extent to get the lon lat ranges for the edges of the extent\n\n const validExtent = applyTransform(\n validExtentP,\n this.toLonLatTransform_,\n undefined,\n 8\n );\n\n let maxLat = validExtent[3];\n let maxLon = validExtent[2];\n let minLat = validExtent[1];\n let minLon = validExtent[0];\n\n if (!wrapX) {\n // Check if extremities of the world extent lie inside the extent\n // (for example the pole in a polar projection)\n // and extend the extent as appropriate\n\n if (containsCoordinate(validExtentP, this.bottomLeft_)) {\n minLon = this.minLon_;\n minLat = this.minLat_;\n }\n if (containsCoordinate(validExtentP, this.bottomRight_)) {\n maxLon = this.maxLon_;\n minLat = this.minLat_;\n }\n if (containsCoordinate(validExtentP, this.topLeft_)) {\n minLon = this.minLon_;\n maxLat = this.maxLat_;\n }\n if (containsCoordinate(validExtentP, this.topRight_)) {\n maxLon = this.maxLon_;\n maxLat = this.maxLat_;\n }\n\n // The transformed center may also extend the lon lat ranges used for rendering\n\n maxLat = clamp(maxLat, centerLat, this.maxLat_);\n maxLon = clamp(maxLon, centerLon, this.maxLon_);\n minLat = clamp(minLat, this.minLat_, centerLat);\n minLon = clamp(minLon, this.minLon_, centerLon);\n }\n\n // Create meridians\n\n centerLon = Math.floor(centerLon / interval) * interval;\n lon = clamp(centerLon, this.minLon_, this.maxLon_);\n\n idx = this.addMeridian_(lon, minLat, maxLat, squaredTolerance, extent, 0);\n\n cnt = 0;\n if (wrapX) {\n while ((lon -= interval) >= minLon && cnt++ < maxLines) {\n idx = this.addMeridian_(\n lon,\n minLat,\n maxLat,\n squaredTolerance,\n extent,\n idx\n );\n }\n } else {\n while (lon != this.minLon_ && cnt++ < maxLines) {\n lon = Math.max(lon - interval, this.minLon_);\n idx = this.addMeridian_(\n lon,\n minLat,\n maxLat,\n squaredTolerance,\n extent,\n idx\n );\n }\n }\n\n lon = clamp(centerLon, this.minLon_, this.maxLon_);\n\n cnt = 0;\n if (wrapX) {\n while ((lon += interval) <= maxLon && cnt++ < maxLines) {\n idx = this.addMeridian_(\n lon,\n minLat,\n maxLat,\n squaredTolerance,\n extent,\n idx\n );\n }\n } else {\n while (lon != this.maxLon_ && cnt++ < maxLines) {\n lon = Math.min(lon + interval, this.maxLon_);\n idx = this.addMeridian_(\n lon,\n minLat,\n maxLat,\n squaredTolerance,\n extent,\n idx\n );\n }\n }\n\n this.meridians_.length = idx;\n if (this.meridiansLabels_) {\n this.meridiansLabels_.length = idx;\n }\n\n // Create parallels\n\n centerLat = Math.floor(centerLat / interval) * interval;\n lat = clamp(centerLat, this.minLat_, this.maxLat_);\n\n idx = this.addParallel_(lat, minLon, maxLon, squaredTolerance, extent, 0);\n\n cnt = 0;\n while (lat != this.minLat_ && cnt++ < maxLines) {\n lat = Math.max(lat - interval, this.minLat_);\n idx = this.addParallel_(\n lat,\n minLon,\n maxLon,\n squaredTolerance,\n extent,\n idx\n );\n }\n\n lat = clamp(centerLat, this.minLat_, this.maxLat_);\n\n cnt = 0;\n while (lat != this.maxLat_ && cnt++ < maxLines) {\n lat = Math.min(lat + interval, this.maxLat_);\n idx = this.addParallel_(\n lat,\n minLon,\n maxLon,\n squaredTolerance,\n extent,\n idx\n );\n }\n\n this.parallels_.length = idx;\n if (this.parallelsLabels_) {\n this.parallelsLabels_.length = idx;\n }\n }\n\n /**\n * @param {number} resolution Resolution.\n * @return {number} The interval in degrees.\n * @private\n */\n getInterval_(resolution) {\n const centerLon = this.projectionCenterLonLat_[0];\n const centerLat = this.projectionCenterLonLat_[1];\n let interval = -1;\n const target = Math.pow(this.targetSize_ * resolution, 2);\n /** @type {Array<number>} **/\n const p1 = [];\n /** @type {Array<number>} **/\n const p2 = [];\n for (let i = 0, ii = this.intervals_.length; i < ii; ++i) {\n const delta = clamp(this.intervals_[i] / 2, 0, 90);\n // Don't attempt to transform latitudes beyond the poles!\n const clampedLat = clamp(centerLat, -90 + delta, 90 - delta);\n p1[0] = centerLon - delta;\n p1[1] = clampedLat - delta;\n p2[0] = centerLon + delta;\n p2[1] = clampedLat + delta;\n this.fromLonLatTransform_(p1, p1);\n this.fromLonLatTransform_(p2, p2);\n const dist = Math.pow(p2[0] - p1[0], 2) + Math.pow(p2[1] - p1[1], 2);\n if (dist <= target) {\n break;\n }\n interval = this.intervals_[i];\n }\n return interval;\n }\n\n /**\n * @param {number} lon Longitude.\n * @param {number} minLat Minimal latitude.\n * @param {number} maxLat Maximal latitude.\n * @param {number} squaredTolerance Squared tolerance.\n * @return {LineString} The meridian line string.\n * @param {number} index Index.\n * @private\n */\n getMeridian_(lon, minLat, maxLat, squaredTolerance, index) {\n const flatCoordinates = meridian(\n lon,\n minLat,\n maxLat,\n this.projection_,\n squaredTolerance\n );\n let lineString = this.meridians_[index];\n if (!lineString) {\n lineString = new LineString(flatCoordinates, GeometryLayout.XY);\n this.meridians_[index] = lineString;\n } else {\n lineString.setFlatCoordinates(GeometryLayout.XY, flatCoordinates);\n lineString.changed();\n }\n return lineString;\n }\n\n /**\n * @param {LineString} lineString Meridian\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @param {number} index Index.\n * @return {Point} Meridian point.\n * @private\n */\n getMeridianPoint_(lineString, extent, index) {\n const flatCoordinates = lineString.getFlatCoordinates();\n let bottom = 1;\n let top = flatCoordinates.length - 1;\n if (flatCoordinates[bottom] > flatCoordinates[top]) {\n bottom = top;\n top = 1;\n }\n const clampedBottom = Math.max(extent[1], flatCoordinates[bottom]);\n const clampedTop = Math.min(extent[3], flatCoordinates[top]);\n const lat = clamp(\n extent[1] + Math.abs(extent[1] - extent[3]) * this.lonLabelPosition_,\n clampedBottom,\n clampedTop\n );\n const coordinate0 =\n flatCoordinates[bottom - 1] +\n ((flatCoordinates[top - 1] - flatCoordinates[bottom - 1]) *\n (lat - flatCoordinates[bottom])) /\n (flatCoordinates[top] - flatCoordinates[bottom]);\n const coordinate = [coordinate0, lat];\n const point = this.meridiansLabels_[index].geom;\n point.setCoordinates(coordinate);\n return point;\n }\n\n /**\n * Get the list of meridians. Meridians are lines of equal longitude.\n * @return {Array<LineString>} The meridians.\n * @api\n */\n getMeridians() {\n return this.meridians_;\n }\n\n /**\n * @param {number} lat Latitude.\n * @param {number} minLon Minimal longitude.\n * @param {number} maxLon Maximal longitude.\n * @param {number} squaredTolerance Squared tolerance.\n * @return {LineString} The parallel line string.\n * @param {number} index Index.\n * @private\n */\n getParallel_(lat, minLon, maxLon, squaredTolerance, index) {\n const flatCoordinates = parallel(\n lat,\n minLon,\n maxLon,\n this.projection_,\n squaredTolerance\n );\n let lineString = this.parallels_[index];\n if (!lineString) {\n lineString = new LineString(flatCoordinates, GeometryLayout.XY);\n } else {\n lineString.setFlatCoordinates(GeometryLayout.XY, flatCoordinates);\n lineString.changed();\n }\n return lineString;\n }\n\n /**\n * @param {LineString} lineString Parallels.\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @param {number} index Index.\n * @return {Point} Parallel point.\n * @private\n */\n getParallelPoint_(lineString, extent, index) {\n const flatCoordinates = lineString.getFlatCoordinates();\n let left = 0;\n let right = flatCoordinates.length - 2;\n if (flatCoordinates[left] > flatCoordinates[right]) {\n left = right;\n right = 0;\n }\n const clampedLeft = Math.max(extent[0], flatCoordinates[left]);\n const clampedRight = Math.min(extent[2], flatCoordinates[right]);\n const lon = clamp(\n extent[0] + Math.abs(extent[0] - extent[2]) * this.latLabelPosition_,\n clampedLeft,\n clampedRight\n );\n const coordinate1 =\n flatCoordinates[left + 1] +\n ((flatCoordinates[right + 1] - flatCoordinates[left + 1]) *\n (lon - flatCoordinates[left])) /\n (flatCoordinates[right] - flatCoordinates[left]);\n const coordinate = [lon, coordinate1];\n const point = this.parallelsLabels_[index].geom;\n point.setCoordinates(coordinate);\n return point;\n }\n\n /**\n * Get the list of parallels. Parallels are lines of equal latitude.\n * @return {Array<LineString>} The parallels.\n * @api\n */\n getParallels() {\n return this.parallels_;\n }\n\n /**\n * @param {import(\"../proj/Projection.js\").default} projection Projection.\n * @private\n */\n updateProjectionInfo_(projection) {\n const epsg4326Projection = getProjection('EPSG:4326');\n\n const worldExtent = projection.getWorldExtent();\n\n this.maxLat_ = worldExtent[3];\n this.maxLon_ = worldExtent[2];\n this.minLat_ = worldExtent[1];\n this.minLon_ = worldExtent[0];\n\n // If the world extent crosses the dateline define a custom transform to\n // return longitudes which wrap the dateline\n\n const toLonLatTransform = getTransform(projection, epsg4326Projection);\n if (this.minLon_ < this.maxLon_) {\n this.toLonLatTransform_ = toLonLatTransform;\n } else {\n const split = this.minLon_ + this.maxLon_ / 2;\n this.maxLon_ += 360;\n this.toLonLatTransform_ = function (\n coordinates,\n opt_output,\n opt_dimension\n ) {\n const dimension = opt_dimension || 2;\n const lonLatCoordinates = toLonLatTransform(\n coordinates,\n opt_output,\n dimension\n );\n for (let i = 0, l = lonLatCoordinates.length; i < l; i += dimension) {\n if (lonLatCoordinates[i] < split) {\n lonLatCoordinates[i] += 360;\n }\n }\n return lonLatCoordinates;\n };\n }\n\n // Transform the extent to get the limits of the view projection extent\n // which should be available to the graticule\n\n this.fromLonLatTransform_ = getTransform(epsg4326Projection, projection);\n const worldExtentP = applyTransform(\n [this.minLon_, this.minLat_, this.maxLon_, this.maxLat_],\n this.fromLonLatTransform_,\n undefined,\n 8\n );\n\n this.minX_ = worldExtentP[0];\n this.maxX_ = worldExtentP[2];\n this.minY_ = worldExtentP[1];\n this.maxY_ = worldExtentP[3];\n\n // Determine the view projection coordinates of the extremities of the world extent\n // as these may lie inside a view extent (for example the pole in a polar projection)\n\n this.bottomLeft_ = this.fromLonLatTransform_([this.minLon_, this.minLat_]);\n this.bottomRight_ = this.fromLonLatTransform_([this.maxLon_, this.minLat_]);\n this.topLeft_ = this.fromLonLatTransform_([this.minLon_, this.maxLat_]);\n this.topRight_ = this.fromLonLatTransform_([this.maxLon_, this.maxLat_]);\n\n // Transform the projection center to lon lat\n // Some projections may have a void area at the poles\n // so replace any NaN latitudes with the min or max value closest to a pole\n\n this.projectionCenterLonLat_ = this.toLonLatTransform_(\n getCenter(projection.getExtent())\n );\n if (isNaN(this.projectionCenterLonLat_[1])) {\n this.projectionCenterLonLat_[1] =\n Math.abs(this.maxLat_) >= Math.abs(this.minLat_)\n ? this.maxLat_\n : this.minLat_;\n }\n\n this.projection_ = projection;\n }\n}\n\nexport default Graticule;\n","/**\n * @module ol/ImageCanvas\n */\nimport ImageBase from './ImageBase.js';\nimport ImageState from './ImageState.js';\n\n/**\n * A function that is called to trigger asynchronous canvas drawing. It is\n * called with a \"done\" callback that should be called when drawing is done.\n * If any error occurs during drawing, the \"done\" callback should be called with\n * that error.\n *\n * @typedef {function(function(Error=): void): void} Loader\n */\n\nclass ImageCanvas extends ImageBase {\n /**\n * @param {import(\"./extent.js\").Extent} extent Extent.\n * @param {number} resolution Resolution.\n * @param {number} pixelRatio Pixel ratio.\n * @param {HTMLCanvasElement} canvas Canvas.\n * @param {Loader=} opt_loader Optional loader function to\n * support asynchronous canvas drawing.\n */\n constructor(extent, resolution, pixelRatio, canvas, opt_loader) {\n const state =\n opt_loader !== undefined ? ImageState.IDLE : ImageState.LOADED;\n\n super(extent, resolution, pixelRatio, state);\n\n /**\n * Optional canvas loader function.\n * @type {?Loader}\n * @private\n */\n this.loader_ = opt_loader !== undefined ? opt_loader : null;\n\n /**\n * @private\n * @type {HTMLCanvasElement}\n */\n this.canvas_ = canvas;\n\n /**\n * @private\n * @type {?Error}\n */\n this.error_ = null;\n }\n\n /**\n * Get any error associated with asynchronous rendering.\n * @return {?Error} Any error that occurred during rendering.\n */\n getError() {\n return this.error_;\n }\n\n /**\n * Handle async drawing complete.\n * @param {Error=} err Any error during drawing.\n * @private\n */\n handleLoad_(err) {\n if (err) {\n this.error_ = err;\n this.state = ImageState.ERROR;\n } else {\n this.state = ImageState.LOADED;\n }\n this.changed();\n }\n\n /**\n * Load not yet loaded URI.\n */\n load() {\n if (this.state == ImageState.IDLE) {\n this.state = ImageState.LOADING;\n this.changed();\n this.loader_(this.handleLoad_.bind(this));\n }\n }\n\n /**\n * @return {HTMLCanvasElement} Canvas element.\n */\n getImage() {\n return this.canvas_;\n }\n}\n\nexport default ImageCanvas;\n","/**\n * @module ol/TileState\n */\n\n/**\n * @enum {number}\n */\nexport default {\n IDLE: 0,\n LOADING: 1,\n LOADED: 2,\n /**\n * Indicates that tile loading failed\n * @type {number}\n */\n ERROR: 3,\n EMPTY: 4,\n};\n","/**\n * @module ol/easing\n */\n\n/**\n * Start slow and speed up.\n * @param {number} t Input between 0 and 1.\n * @return {number} Output between 0 and 1.\n * @api\n */\nexport function easeIn(t) {\n return Math.pow(t, 3);\n}\n\n/**\n * Start fast and slow down.\n * @param {number} t Input between 0 and 1.\n * @return {number} Output between 0 and 1.\n * @api\n */\nexport function easeOut(t) {\n return 1 - easeIn(1 - t);\n}\n\n/**\n * Start slow, speed up, and then slow down again.\n * @param {number} t Input between 0 and 1.\n * @return {number} Output between 0 and 1.\n * @api\n */\nexport function inAndOut(t) {\n return 3 * t * t - 2 * t * t * t;\n}\n\n/**\n * Maintain a constant speed over time.\n * @param {number} t Input between 0 and 1.\n * @return {number} Output between 0 and 1.\n * @api\n */\nexport function linear(t) {\n return t;\n}\n\n/**\n * Start slow, speed up, and at the very end slow down again. This has the\n * same general behavior as {@link module:ol/easing~inAndOut}, but the final\n * slowdown is delayed.\n * @param {number} t Input between 0 and 1.\n * @return {number} Output between 0 and 1.\n * @api\n */\nexport function upAndDown(t) {\n if (t < 0.5) {\n return inAndOut(2 * t);\n } else {\n return 1 - inAndOut(2 * (t - 0.5));\n }\n}\n","/**\n * @module ol/Tile\n */\nimport EventTarget from './events/Target.js';\nimport EventType from './events/EventType.js';\nimport TileState from './TileState.js';\nimport {abstract} from './util.js';\nimport {easeIn} from './easing.js';\n\n/**\n * A function that takes an {@link module:ol/Tile} for the tile and a\n * `{string}` for the url as arguments. The default is\n * ```js\n * source.setTileLoadFunction(function(tile, src) {\n * tile.getImage().src = src;\n * });\n * ```\n * For more fine grained control, the load function can use fetch or XMLHttpRequest and involve\n * error handling:\n *\n * ```js\n * import TileState from 'ol/TileState';\n *\n * source.setTileLoadFunction(function(tile, src) {\n * var xhr = new XMLHttpRequest();\n * xhr.responseType = 'blob';\n * xhr.addEventListener('loadend', function (evt) {\n * var data = this.response;\n * if (data !== undefined) {\n * tile.getImage().src = URL.createObjectURL(data);\n * } else {\n * tile.setState(TileState.ERROR);\n * }\n * });\n * xhr.addEventListener('error', function () {\n * tile.setState(TileState.ERROR);\n * });\n * xhr.open('GET', src);\n * xhr.send();\n * });\n * ```\n *\n * @typedef {function(Tile, string): void} LoadFunction\n * @api\n */\n\n/**\n * {@link module:ol/source/Tile~Tile} sources use a function of this type to get\n * the url that provides a tile for a given tile coordinate.\n *\n * This function takes an {@link module:ol/tilecoord~TileCoord} for the tile\n * coordinate, a `{number}` representing the pixel ratio and a\n * {@link module:ol/proj/Projection} for the projection as arguments\n * and returns a `{string}` representing the tile URL, or undefined if no tile\n * should be requested for the passed tile coordinate.\n *\n * @typedef {function(import(\"./tilecoord.js\").TileCoord, number,\n * import(\"./proj/Projection.js\").default): (string|undefined)} UrlFunction\n * @api\n */\n\n/**\n * @typedef {Object} Options\n * @property {number} [transition=250] A duration for tile opacity\n * transitions in milliseconds. A duration of 0 disables the opacity transition.\n * @api\n */\n\n/**\n * @classdesc\n * Base class for tiles.\n *\n * @abstract\n */\nclass Tile extends EventTarget {\n /**\n * @param {import(\"./tilecoord.js\").TileCoord} tileCoord Tile coordinate.\n * @param {import(\"./TileState.js\").default} state State.\n * @param {Options=} opt_options Tile options.\n */\n constructor(tileCoord, state, opt_options) {\n super();\n\n const options = opt_options ? opt_options : {};\n\n /**\n * @type {import(\"./tilecoord.js\").TileCoord}\n */\n this.tileCoord = tileCoord;\n\n /**\n * @protected\n * @type {import(\"./TileState.js\").default}\n */\n this.state = state;\n\n /**\n * An \"interim\" tile for this tile. The interim tile may be used while this\n * one is loading, for \"smooth\" transitions when changing params/dimensions\n * on the source.\n * @type {Tile}\n */\n this.interimTile = null;\n\n /**\n * The tile is available at the highest possible resolution. Subclasses can\n * set this to `false` initially. Tile load listeners will not be\n * unregistered before this is set to `true` and a `#changed()` is called.\n * @type {boolean}\n */\n this.hifi = true;\n\n /**\n * A key assigned to the tile. This is used by the tile source to determine\n * if this tile can effectively be used, or if a new tile should be created\n * and this one be used as an interim tile for this new tile.\n * @type {string}\n */\n this.key = '';\n\n /**\n * The duration for the opacity transition.\n * @type {number}\n */\n this.transition_ =\n options.transition === undefined ? 250 : options.transition;\n\n /**\n * Lookup of start times for rendering transitions. If the start time is\n * equal to -1, the transition is complete.\n * @type {Object<string, number>}\n */\n this.transitionStarts_ = {};\n }\n\n /**\n * @protected\n */\n changed() {\n this.dispatchEvent(EventType.CHANGE);\n }\n\n /**\n * Called by the tile cache when the tile is removed from the cache due to expiry\n */\n release() {}\n\n /**\n * @return {string} Key.\n */\n getKey() {\n return this.key + '/' + this.tileCoord;\n }\n\n /**\n * Get the interim tile most suitable for rendering using the chain of interim\n * tiles. This corresponds to the most recent tile that has been loaded, if no\n * such tile exists, the original tile is returned.\n * @return {!Tile} Best tile for rendering.\n */\n getInterimTile() {\n if (!this.interimTile) {\n //empty chain\n return this;\n }\n let tile = this.interimTile;\n\n // find the first loaded tile and return it. Since the chain is sorted in\n // decreasing order of creation time, there is no need to search the remainder\n // of the list (all those tiles correspond to older requests and will be\n // cleaned up by refreshInterimChain)\n do {\n if (tile.getState() == TileState.LOADED) {\n // Show tile immediately instead of fading it in after loading, because\n // the interim tile is in place already\n this.transition_ = 0;\n return tile;\n }\n tile = tile.interimTile;\n } while (tile);\n\n // we can not find a better tile\n return this;\n }\n\n /**\n * Goes through the chain of interim tiles and discards sections of the chain\n * that are no longer relevant.\n */\n refreshInterimChain() {\n if (!this.interimTile) {\n return;\n }\n\n let tile = this.interimTile;\n let prev = /** @type {Tile} */ (this);\n\n do {\n if (tile.getState() == TileState.LOADED) {\n //we have a loaded tile, we can discard the rest of the list\n //we would could abort any LOADING tile request\n //older than this tile (i.e. any LOADING tile following this entry in the chain)\n tile.interimTile = null;\n break;\n } else if (tile.getState() == TileState.LOADING) {\n //keep this LOADING tile any loaded tiles later in the chain are\n //older than this tile, so we're still interested in the request\n prev = tile;\n } else if (tile.getState() == TileState.IDLE) {\n //the head of the list is the most current tile, we don't need\n //to start any other requests for this chain\n prev.interimTile = tile.interimTile;\n } else {\n prev = tile;\n }\n tile = prev.interimTile;\n } while (tile);\n }\n\n /**\n * Get the tile coordinate for this tile.\n * @return {import(\"./tilecoord.js\").TileCoord} The tile coordinate.\n * @api\n */\n getTileCoord() {\n return this.tileCoord;\n }\n\n /**\n * @return {import(\"./TileState.js\").default} State.\n */\n getState() {\n return this.state;\n }\n\n /**\n * Sets the state of this tile. If you write your own {@link module:ol/Tile~LoadFunction tileLoadFunction} ,\n * it is important to set the state correctly to {@link module:ol/TileState~ERROR}\n * when the tile cannot be loaded. Otherwise the tile cannot be removed from\n * the tile queue and will block other requests.\n * @param {import(\"./TileState.js\").default} state State.\n * @api\n */\n setState(state) {\n if (this.state !== TileState.ERROR && this.state > state) {\n throw new Error('Tile load sequence violation');\n }\n this.state = state;\n this.changed();\n }\n\n /**\n * Load the image or retry if loading previously failed.\n * Loading is taken care of by the tile queue, and calling this method is\n * only needed for preloading or for reloading in case of an error.\n * @abstract\n * @api\n */\n load() {\n abstract();\n }\n\n /**\n * Get the alpha value for rendering.\n * @param {string} id An id for the renderer.\n * @param {number} time The render frame time.\n * @return {number} A number between 0 and 1.\n */\n getAlpha(id, time) {\n if (!this.transition_) {\n return 1;\n }\n\n let start = this.transitionStarts_[id];\n if (!start) {\n start = time;\n this.transitionStarts_[id] = start;\n } else if (start === -1) {\n return 1;\n }\n\n const delta = time - start + 1000 / 60; // avoid rendering at 0\n if (delta >= this.transition_) {\n return 1;\n }\n return easeIn(delta / this.transition_);\n }\n\n /**\n * Determine if a tile is in an alpha transition. A tile is considered in\n * transition if tile.getAlpha() has not yet been called or has been called\n * and returned 1.\n * @param {string} id An id for the renderer.\n * @return {boolean} The tile is in transition.\n */\n inTransition(id) {\n if (!this.transition_) {\n return false;\n }\n return this.transitionStarts_[id] !== -1;\n }\n\n /**\n * Mark a transition as complete.\n * @param {string} id An id for the renderer.\n */\n endTransition(id) {\n if (this.transition_) {\n this.transitionStarts_[id] = -1;\n }\n }\n}\n\nexport default Tile;\n","/**\n * @module ol/ImageTile\n */\nimport Tile from './Tile.js';\nimport TileState from './TileState.js';\nimport {createCanvasContext2D} from './dom.js';\nimport {listenImage} from './Image.js';\n\nclass ImageTile extends Tile {\n /**\n * @param {import(\"./tilecoord.js\").TileCoord} tileCoord Tile coordinate.\n * @param {import(\"./TileState.js\").default} state State.\n * @param {string} src Image source URI.\n * @param {?string} crossOrigin Cross origin.\n * @param {import(\"./Tile.js\").LoadFunction} tileLoadFunction Tile load function.\n * @param {import(\"./Tile.js\").Options=} opt_options Tile options.\n */\n constructor(\n tileCoord,\n state,\n src,\n crossOrigin,\n tileLoadFunction,\n opt_options\n ) {\n super(tileCoord, state, opt_options);\n\n /**\n * @private\n * @type {?string}\n */\n this.crossOrigin_ = crossOrigin;\n\n /**\n * Image URI\n *\n * @private\n * @type {string}\n */\n this.src_ = src;\n\n /**\n * @private\n * @type {HTMLImageElement|HTMLCanvasElement}\n */\n this.image_ = new Image();\n if (crossOrigin !== null) {\n this.image_.crossOrigin = crossOrigin;\n }\n\n /**\n * @private\n * @type {?function():void}\n */\n this.unlisten_ = null;\n\n /**\n * @private\n * @type {import(\"./Tile.js\").LoadFunction}\n */\n this.tileLoadFunction_ = tileLoadFunction;\n }\n\n /**\n * Get the HTML image element for this tile (may be a Canvas, Image, or Video).\n * @return {HTMLCanvasElement|HTMLImageElement|HTMLVideoElement} Image.\n * @api\n */\n getImage() {\n return this.image_;\n }\n\n /**\n * @return {string} Key.\n */\n getKey() {\n return this.src_;\n }\n\n /**\n * Tracks loading or read errors.\n *\n * @private\n */\n handleImageError_() {\n this.state = TileState.ERROR;\n this.unlistenImage_();\n this.image_ = getBlankImage();\n this.changed();\n }\n\n /**\n * Tracks successful image load.\n *\n * @private\n */\n handleImageLoad_() {\n const image = /** @type {HTMLImageElement} */ (this.image_);\n if (image.naturalWidth && image.naturalHeight) {\n this.state = TileState.LOADED;\n } else {\n this.state = TileState.EMPTY;\n }\n this.unlistenImage_();\n this.changed();\n }\n\n /**\n * Load not yet loaded URI.\n * @api\n */\n load() {\n if (this.state == TileState.ERROR) {\n this.state = TileState.IDLE;\n this.image_ = new Image();\n if (this.crossOrigin_ !== null) {\n this.image_.crossOrigin = this.crossOrigin_;\n }\n }\n if (this.state == TileState.IDLE) {\n this.state = TileState.LOADING;\n this.changed();\n this.tileLoadFunction_(this, this.src_);\n this.unlisten_ = listenImage(\n this.image_,\n this.handleImageLoad_.bind(this),\n this.handleImageError_.bind(this)\n );\n }\n }\n\n /**\n * Discards event handlers which listen for load completion or errors.\n *\n * @private\n */\n unlistenImage_() {\n if (this.unlisten_) {\n this.unlisten_();\n this.unlisten_ = null;\n }\n }\n}\n\n/**\n * Get a 1-pixel blank image.\n * @return {HTMLCanvasElement} Blank image.\n */\nfunction getBlankImage() {\n const ctx = createCanvasContext2D(1, 1);\n ctx.fillStyle = 'rgba(0,0,0,0)';\n ctx.fillRect(0, 0, 1, 1);\n return ctx.canvas;\n}\n\nexport default ImageTile;\n","/**\n * @module ol/Kinetic\n */\n\n/**\n * @classdesc\n * Implementation of inertial deceleration for map movement.\n *\n * @api\n */\nclass Kinetic {\n /**\n * @param {number} decay Rate of decay (must be negative).\n * @param {number} minVelocity Minimum velocity (pixels/millisecond).\n * @param {number} delay Delay to consider to calculate the kinetic\n * initial values (milliseconds).\n */\n constructor(decay, minVelocity, delay) {\n /**\n * @private\n * @type {number}\n */\n this.decay_ = decay;\n\n /**\n * @private\n * @type {number}\n */\n this.minVelocity_ = minVelocity;\n\n /**\n * @private\n * @type {number}\n */\n this.delay_ = delay;\n\n /**\n * @private\n * @type {Array<number>}\n */\n this.points_ = [];\n\n /**\n * @private\n * @type {number}\n */\n this.angle_ = 0;\n\n /**\n * @private\n * @type {number}\n */\n this.initialVelocity_ = 0;\n }\n\n /**\n * FIXME empty description for jsdoc\n */\n begin() {\n this.points_.length = 0;\n this.angle_ = 0;\n this.initialVelocity_ = 0;\n }\n\n /**\n * @param {number} x X.\n * @param {number} y Y.\n */\n update(x, y) {\n this.points_.push(x, y, Date.now());\n }\n\n /**\n * @return {boolean} Whether we should do kinetic animation.\n */\n end() {\n if (this.points_.length < 6) {\n // at least 2 points are required (i.e. there must be at least 6 elements\n // in the array)\n return false;\n }\n const delay = Date.now() - this.delay_;\n const lastIndex = this.points_.length - 3;\n if (this.points_[lastIndex + 2] < delay) {\n // the last tracked point is too old, which means that the user stopped\n // panning before releasing the map\n return false;\n }\n\n // get the first point which still falls into the delay time\n let firstIndex = lastIndex - 3;\n while (firstIndex > 0 && this.points_[firstIndex + 2] > delay) {\n firstIndex -= 3;\n }\n\n const duration = this.points_[lastIndex + 2] - this.points_[firstIndex + 2];\n // we don't want a duration of 0 (divide by zero)\n // we also make sure the user panned for a duration of at least one frame\n // (1/60s) to compute sane displacement values\n if (duration < 1000 / 60) {\n return false;\n }\n\n const dx = this.points_[lastIndex] - this.points_[firstIndex];\n const dy = this.points_[lastIndex + 1] - this.points_[firstIndex + 1];\n this.angle_ = Math.atan2(dy, dx);\n this.initialVelocity_ = Math.sqrt(dx * dx + dy * dy) / duration;\n return this.initialVelocity_ > this.minVelocity_;\n }\n\n /**\n * @return {number} Total distance travelled (pixels).\n */\n getDistance() {\n return (this.minVelocity_ - this.initialVelocity_) / this.decay_;\n }\n\n /**\n * @return {number} Angle of the kinetic panning animation (radians).\n */\n getAngle() {\n return this.angle_;\n }\n}\n\nexport default Kinetic;\n","/**\n * @module ol/renderer/Map\n */\nimport Disposable from '../Disposable.js';\nimport {TRUE} from '../functions.js';\nimport {abstract} from '../util.js';\nimport {compose as composeTransform, makeInverse} from '../transform.js';\nimport {getWidth} from '../extent.js';\nimport {shared as iconImageCache} from '../style/IconImageCache.js';\nimport {inView} from '../layer/Layer.js';\nimport {renderDeclutterItems} from '../render.js';\nimport {wrapX} from '../coordinate.js';\n\n/**\n * @abstract\n */\nclass MapRenderer extends Disposable {\n /**\n * @param {import(\"../PluggableMap.js\").default} map Map.\n */\n constructor(map) {\n super();\n\n /**\n * @private\n * @type {import(\"../PluggableMap.js\").default}\n */\n this.map_ = map;\n\n /**\n * @private\n */\n this.declutterTree_ = null;\n }\n\n /**\n * @abstract\n * @param {import(\"../render/EventType.js\").default} type Event type.\n * @param {import(\"../PluggableMap.js\").FrameState} frameState Frame state.\n */\n dispatchRenderEvent(type, frameState) {\n abstract();\n }\n\n /**\n * @param {import(\"../PluggableMap.js\").FrameState} frameState FrameState.\n * @protected\n */\n calculateMatrices2D(frameState) {\n const viewState = frameState.viewState;\n const coordinateToPixelTransform = frameState.coordinateToPixelTransform;\n const pixelToCoordinateTransform = frameState.pixelToCoordinateTransform;\n\n composeTransform(\n coordinateToPixelTransform,\n frameState.size[0] / 2,\n frameState.size[1] / 2,\n 1 / viewState.resolution,\n -1 / viewState.resolution,\n -viewState.rotation,\n -viewState.center[0],\n -viewState.center[1]\n );\n\n makeInverse(pixelToCoordinateTransform, coordinateToPixelTransform);\n }\n\n /**\n * @param {import(\"../coordinate.js\").Coordinate} coordinate Coordinate.\n * @param {import(\"../PluggableMap.js\").FrameState} frameState FrameState.\n * @param {number} hitTolerance Hit tolerance in pixels.\n * @param {boolean} checkWrapped Check for wrapped geometries.\n * @param {function(this: S, import(\"../Feature.js\").FeatureLike,\n * import(\"../layer/Layer.js\").default): T} callback Feature callback.\n * @param {S} thisArg Value to use as `this` when executing `callback`.\n * @param {function(this: U, import(\"../layer/Layer.js\").default): boolean} layerFilter Layer filter\n * function, only layers which are visible and for which this function\n * returns `true` will be tested for features. By default, all visible\n * layers will be tested.\n * @param {U} thisArg2 Value to use as `this` when executing `layerFilter`.\n * @return {T|undefined} Callback result.\n * @template S,T,U\n */\n forEachFeatureAtCoordinate(\n coordinate,\n frameState,\n hitTolerance,\n checkWrapped,\n callback,\n thisArg,\n layerFilter,\n thisArg2\n ) {\n let result;\n const viewState = frameState.viewState;\n\n /**\n * @param {boolean} managed Managed layer.\n * @param {import(\"../Feature.js\").FeatureLike} feature Feature.\n * @param {import(\"../layer/Layer.js\").default} layer Layer.\n * @return {?} Callback result.\n */\n function forEachFeatureAtCoordinate(managed, feature, layer) {\n return callback.call(thisArg, feature, managed ? layer : null);\n }\n\n const projection = viewState.projection;\n\n const translatedCoordinate = wrapX(coordinate.slice(), projection);\n const offsets = [[0, 0]];\n if (projection.canWrapX() && checkWrapped) {\n const projectionExtent = projection.getExtent();\n const worldWidth = getWidth(projectionExtent);\n offsets.push([-worldWidth, 0], [worldWidth, 0]);\n }\n\n const layerStates = frameState.layerStatesArray;\n const numLayers = layerStates.length;\n let declutteredFeatures;\n if (this.declutterTree_) {\n declutteredFeatures = this.declutterTree_.all().map(function (entry) {\n return entry.value;\n });\n }\n\n const tmpCoord = [];\n for (let i = 0; i < offsets.length; i++) {\n for (let j = numLayers - 1; j >= 0; --j) {\n const layerState = layerStates[j];\n const layer = /** @type {import(\"../layer/Layer.js\").default} */ (layerState.layer);\n if (\n layer.hasRenderer() &&\n inView(layerState, viewState) &&\n layerFilter.call(thisArg2, layer)\n ) {\n const layerRenderer = layer.getRenderer();\n const source = layer.getSource();\n if (layerRenderer && source) {\n const coordinates = source.getWrapX()\n ? translatedCoordinate\n : coordinate;\n const callback = forEachFeatureAtCoordinate.bind(\n null,\n layerState.managed\n );\n tmpCoord[0] = coordinates[0] + offsets[i][0];\n tmpCoord[1] = coordinates[1] + offsets[i][1];\n result = layerRenderer.forEachFeatureAtCoordinate(\n tmpCoord,\n frameState,\n hitTolerance,\n callback,\n declutteredFeatures\n );\n }\n if (result) {\n return result;\n }\n }\n }\n }\n return undefined;\n }\n\n /**\n * @abstract\n * @param {import(\"../pixel.js\").Pixel} pixel Pixel.\n * @param {import(\"../PluggableMap.js\").FrameState} frameState FrameState.\n * @param {number} hitTolerance Hit tolerance in pixels.\n * @param {function(import(\"../layer/Layer.js\").default, (Uint8ClampedArray|Uint8Array)): T} callback Layer\n * callback.\n * @param {function(import(\"../layer/Layer.js\").default): boolean} layerFilter Layer filter\n * function, only layers which are visible and for which this function\n * returns `true` will be tested for features. By default, all visible\n * layers will be tested.\n * @return {T|undefined} Callback result.\n * @template T\n */\n forEachLayerAtPixel(pixel, frameState, hitTolerance, callback, layerFilter) {\n return abstract();\n }\n\n /**\n * @param {import(\"../coordinate.js\").Coordinate} coordinate Coordinate.\n * @param {import(\"../PluggableMap.js\").FrameState} frameState FrameState.\n * @param {number} hitTolerance Hit tolerance in pixels.\n * @param {boolean} checkWrapped Check for wrapped geometries.\n * @param {function(this: U, import(\"../layer/Layer.js\").default): boolean} layerFilter Layer filter\n * function, only layers which are visible and for which this function\n * returns `true` will be tested for features. By default, all visible\n * layers will be tested.\n * @param {U} thisArg Value to use as `this` when executing `layerFilter`.\n * @return {boolean} Is there a feature at the given coordinate?\n * @template U\n */\n hasFeatureAtCoordinate(\n coordinate,\n frameState,\n hitTolerance,\n checkWrapped,\n layerFilter,\n thisArg\n ) {\n const hasFeature = this.forEachFeatureAtCoordinate(\n coordinate,\n frameState,\n hitTolerance,\n checkWrapped,\n TRUE,\n this,\n layerFilter,\n thisArg\n );\n\n return hasFeature !== undefined;\n }\n\n /**\n * @return {import(\"../PluggableMap.js\").default} Map.\n */\n getMap() {\n return this.map_;\n }\n\n /**\n * Render.\n * @param {?import(\"../PluggableMap.js\").FrameState} frameState Frame state.\n */\n renderFrame(frameState) {\n this.declutterTree_ = renderDeclutterItems(frameState, this.declutterTree_);\n }\n\n /**\n * @param {import(\"../PluggableMap.js\").FrameState} frameState Frame state.\n * @protected\n */\n scheduleExpireIconCache(frameState) {\n if (iconImageCache.canExpireCache()) {\n frameState.postRenderFunctions.push(expireIconCache);\n }\n }\n}\n\n/**\n * @param {import(\"../PluggableMap.js\").default} map Map.\n * @param {import(\"../PluggableMap.js\").FrameState} frameState Frame state.\n */\nfunction expireIconCache(map, frameState) {\n iconImageCache.expire();\n}\n\nexport default MapRenderer;\n","/**\n * @module ol/renderer/Composite\n */\nimport MapRenderer from './Map.js';\nimport ObjectEventType from '../ObjectEventType.js';\nimport RenderEvent from '../render/Event.js';\nimport RenderEventType from '../render/EventType.js';\nimport SourceState from '../source/State.js';\nimport {CLASS_UNSELECTABLE} from '../css.js';\nimport {checkedFonts} from '../render/canvas.js';\nimport {inView} from '../layer/Layer.js';\nimport {listen, unlistenByKey} from '../events.js';\nimport {replaceChildren} from '../dom.js';\n\n/**\n * @classdesc\n * Canvas map renderer.\n * @api\n */\nclass CompositeMapRenderer extends MapRenderer {\n /**\n * @param {import(\"../PluggableMap.js\").default} map Map.\n */\n constructor(map) {\n super(map);\n\n /**\n * @type {import(\"../events.js\").EventsKey}\n */\n this.fontChangeListenerKey_ = listen(\n checkedFonts,\n ObjectEventType.PROPERTYCHANGE,\n map.redrawText.bind(map)\n );\n\n /**\n * @private\n * @type {HTMLDivElement}\n */\n this.element_ = document.createElement('div');\n const style = this.element_.style;\n style.position = 'absolute';\n style.width = '100%';\n style.height = '100%';\n style.zIndex = '0';\n\n this.element_.className = CLASS_UNSELECTABLE + ' ol-layers';\n\n const container = map.getViewport();\n container.insertBefore(this.element_, container.firstChild || null);\n\n /**\n * @private\n * @type {Array<HTMLElement>}\n */\n this.children_ = [];\n\n /**\n * @private\n * @type {boolean}\n */\n this.renderedVisible_ = true;\n }\n\n /**\n * @param {import(\"../render/EventType.js\").default} type Event type.\n * @param {import(\"../PluggableMap.js\").FrameState} frameState Frame state.\n */\n dispatchRenderEvent(type, frameState) {\n const map = this.getMap();\n if (map.hasListener(type)) {\n const event = new RenderEvent(type, undefined, frameState);\n map.dispatchEvent(event);\n }\n }\n\n disposeInternal() {\n unlistenByKey(this.fontChangeListenerKey_);\n this.element_.parentNode.removeChild(this.element_);\n super.disposeInternal();\n }\n\n /**\n * Render.\n * @param {?import(\"../PluggableMap.js\").FrameState} frameState Frame state.\n */\n renderFrame(frameState) {\n if (!frameState) {\n if (this.renderedVisible_) {\n this.element_.style.display = 'none';\n this.renderedVisible_ = false;\n }\n return;\n }\n\n this.calculateMatrices2D(frameState);\n this.dispatchRenderEvent(RenderEventType.PRECOMPOSE, frameState);\n\n const layerStatesArray = frameState.layerStatesArray.sort(function (a, b) {\n return a.zIndex - b.zIndex;\n });\n const viewState = frameState.viewState;\n\n this.children_.length = 0;\n let previousElement = null;\n for (let i = 0, ii = layerStatesArray.length; i < ii; ++i) {\n const layerState = layerStatesArray[i];\n frameState.layerIndex = i;\n if (\n !inView(layerState, viewState) ||\n (layerState.sourceState != SourceState.READY &&\n layerState.sourceState != SourceState.UNDEFINED)\n ) {\n continue;\n }\n\n const layer = layerState.layer;\n const element = layer.render(frameState, previousElement);\n if (!element) {\n continue;\n }\n if (element !== previousElement) {\n this.children_.push(element);\n previousElement = element;\n }\n }\n super.renderFrame(frameState);\n\n replaceChildren(this.element_, this.children_);\n\n this.dispatchRenderEvent(RenderEventType.POSTCOMPOSE, frameState);\n\n if (!this.renderedVisible_) {\n this.element_.style.display = '';\n this.renderedVisible_ = true;\n }\n\n this.scheduleExpireIconCache(frameState);\n }\n\n /**\n * @param {import(\"../pixel.js\").Pixel} pixel Pixel.\n * @param {import(\"../PluggableMap.js\").FrameState} frameState FrameState.\n * @param {number} hitTolerance Hit tolerance in pixels.\n * @param {function(import(\"../layer/Layer.js\").default, (Uint8ClampedArray|Uint8Array)): T} callback Layer\n * callback.\n * @param {function(import(\"../layer/Layer.js\").default): boolean} layerFilter Layer filter\n * function, only layers which are visible and for which this function\n * returns `true` will be tested for features. By default, all visible\n * layers will be tested.\n * @return {T|undefined} Callback result.\n * @template T\n */\n forEachLayerAtPixel(pixel, frameState, hitTolerance, callback, layerFilter) {\n const viewState = frameState.viewState;\n\n const layerStates = frameState.layerStatesArray;\n const numLayers = layerStates.length;\n\n for (let i = numLayers - 1; i >= 0; --i) {\n const layerState = layerStates[i];\n const layer = layerState.layer;\n if (\n layer.hasRenderer() &&\n inView(layerState, viewState) &&\n layerFilter(layer)\n ) {\n const layerRenderer = layer.getRenderer();\n const data = layerRenderer.getDataAtPixel(\n pixel,\n frameState,\n hitTolerance\n );\n if (data) {\n const result = callback(layer, data);\n if (result) {\n return result;\n }\n }\n }\n }\n return undefined;\n }\n}\n\nexport default CompositeMapRenderer;\n","/**\n * @module ol/layer/Group\n */\nimport BaseLayer from './Base.js';\nimport Collection from '../Collection.js';\nimport CollectionEventType from '../CollectionEventType.js';\nimport EventType from '../events/EventType.js';\nimport ObjectEventType from '../ObjectEventType.js';\nimport SourceState from '../source/State.js';\nimport {assert} from '../asserts.js';\nimport {assign, clear} from '../obj.js';\nimport {getChangeEventType} from '../Object.js';\nimport {getIntersection} from '../extent.js';\nimport {getUid} from '../util.js';\nimport {listen, unlistenByKey} from '../events.js';\n\n/**\n * @typedef {Object} Options\n * @property {number} [opacity=1] Opacity (0, 1).\n * @property {boolean} [visible=true] Visibility.\n * @property {import(\"../extent.js\").Extent} [extent] The bounding extent for layer rendering. The layer will not be\n * rendered outside of this extent.\n * @property {number} [zIndex] The z-index for layer rendering. At rendering time, the layers\n * will be ordered, first by Z-index and then by position. When `undefined`, a `zIndex` of 0 is assumed\n * for layers that are added to the map's `layers` collection, or `Infinity` when the layer's `setMap()`\n * method was used.\n * @property {number} [minResolution] The minimum resolution (inclusive) at which this layer will be\n * visible.\n * @property {number} [maxResolution] The maximum resolution (exclusive) below which this layer will\n * be visible.\n * @property {number} [minZoom] The minimum view zoom level (exclusive) above which this layer will be\n * visible.\n * @property {number} [maxZoom] The maximum view zoom level (inclusive) at which this layer will\n * be visible.\n * @property {number} [minZoom] The minimum view zoom level (exclusive) above which this layer will be\n * visible.\n * @property {number} [maxZoom] The maximum view zoom level (inclusive) at which this layer will\n * be visible.\n * @property {Array<import(\"./Base.js\").default>|import(\"../Collection.js\").default<import(\"./Base.js\").default>} [layers] Child layers.\n */\n\n/**\n * @enum {string}\n * @private\n */\nconst Property = {\n LAYERS: 'layers',\n};\n\n/**\n * @classdesc\n * A {@link module:ol/Collection~Collection} of layers that are handled together.\n *\n * A generic `change` event is triggered when the group/Collection changes.\n *\n * @api\n */\nclass LayerGroup extends BaseLayer {\n /**\n * @param {Options=} opt_options Layer options.\n */\n constructor(opt_options) {\n const options = opt_options || {};\n const baseOptions = /** @type {Options} */ (assign({}, options));\n delete baseOptions.layers;\n\n let layers = options.layers;\n\n super(baseOptions);\n\n /**\n * @private\n * @type {Array<import(\"../events.js\").EventsKey>}\n */\n this.layersListenerKeys_ = [];\n\n /**\n * @private\n * @type {Object<string, Array<import(\"../events.js\").EventsKey>>}\n */\n this.listenerKeys_ = {};\n\n this.addEventListener(\n getChangeEventType(Property.LAYERS),\n this.handleLayersChanged_\n );\n\n if (layers) {\n if (Array.isArray(layers)) {\n layers = new Collection(layers.slice(), {unique: true});\n } else {\n assert(typeof (/** @type {?} */ (layers).getArray) === 'function', 43); // Expected `layers` to be an array or a `Collection`\n }\n } else {\n layers = new Collection(undefined, {unique: true});\n }\n\n this.setLayers(layers);\n }\n\n /**\n * @private\n */\n handleLayerChange_() {\n this.changed();\n }\n\n /**\n * @private\n */\n handleLayersChanged_() {\n this.layersListenerKeys_.forEach(unlistenByKey);\n this.layersListenerKeys_.length = 0;\n\n const layers = this.getLayers();\n this.layersListenerKeys_.push(\n listen(layers, CollectionEventType.ADD, this.handleLayersAdd_, this),\n listen(layers, CollectionEventType.REMOVE, this.handleLayersRemove_, this)\n );\n\n for (const id in this.listenerKeys_) {\n this.listenerKeys_[id].forEach(unlistenByKey);\n }\n clear(this.listenerKeys_);\n\n const layersArray = layers.getArray();\n for (let i = 0, ii = layersArray.length; i < ii; i++) {\n const layer = layersArray[i];\n this.listenerKeys_[getUid(layer)] = [\n listen(\n layer,\n ObjectEventType.PROPERTYCHANGE,\n this.handleLayerChange_,\n this\n ),\n listen(layer, EventType.CHANGE, this.handleLayerChange_, this),\n ];\n }\n\n this.changed();\n }\n\n /**\n * @param {import(\"../Collection.js\").CollectionEvent} collectionEvent CollectionEvent.\n * @private\n */\n handleLayersAdd_(collectionEvent) {\n const layer = /** @type {import(\"./Base.js\").default} */ (collectionEvent.element);\n this.listenerKeys_[getUid(layer)] = [\n listen(\n layer,\n ObjectEventType.PROPERTYCHANGE,\n this.handleLayerChange_,\n this\n ),\n listen(layer, EventType.CHANGE, this.handleLayerChange_, this),\n ];\n this.changed();\n }\n\n /**\n * @param {import(\"../Collection.js\").CollectionEvent} collectionEvent CollectionEvent.\n * @private\n */\n handleLayersRemove_(collectionEvent) {\n const layer = /** @type {import(\"./Base.js\").default} */ (collectionEvent.element);\n const key = getUid(layer);\n this.listenerKeys_[key].forEach(unlistenByKey);\n delete this.listenerKeys_[key];\n this.changed();\n }\n\n /**\n * Returns the {@link module:ol/Collection collection} of {@link module:ol/layer/Layer~Layer layers}\n * in this group.\n * @return {!import(\"../Collection.js\").default<import(\"./Base.js\").default>} Collection of\n * {@link module:ol/layer/Base layers} that are part of this group.\n * @observable\n * @api\n */\n getLayers() {\n return /** @type {!import(\"../Collection.js\").default<import(\"./Base.js\").default>} */ (this.get(\n Property.LAYERS\n ));\n }\n\n /**\n * Set the {@link module:ol/Collection collection} of {@link module:ol/layer/Layer~Layer layers}\n * in this group.\n * @param {!import(\"../Collection.js\").default<import(\"./Base.js\").default>} layers Collection of\n * {@link module:ol/layer/Base layers} that are part of this group.\n * @observable\n * @api\n */\n setLayers(layers) {\n this.set(Property.LAYERS, layers);\n }\n\n /**\n * @param {Array<import(\"./Layer.js\").default>=} opt_array Array of layers (to be modified in place).\n * @return {Array<import(\"./Layer.js\").default>} Array of layers.\n */\n getLayersArray(opt_array) {\n const array = opt_array !== undefined ? opt_array : [];\n this.getLayers().forEach(function (layer) {\n layer.getLayersArray(array);\n });\n return array;\n }\n\n /**\n * @param {Array<import(\"./Layer.js\").State>=} opt_states Optional list of layer states (to be modified in place).\n * @return {Array<import(\"./Layer.js\").State>} List of layer states.\n */\n getLayerStatesArray(opt_states) {\n const states = opt_states !== undefined ? opt_states : [];\n\n const pos = states.length;\n\n this.getLayers().forEach(function (layer) {\n layer.getLayerStatesArray(states);\n });\n\n const ownLayerState = this.getLayerState();\n for (let i = pos, ii = states.length; i < ii; i++) {\n const layerState = states[i];\n layerState.opacity *= ownLayerState.opacity;\n layerState.visible = layerState.visible && ownLayerState.visible;\n layerState.maxResolution = Math.min(\n layerState.maxResolution,\n ownLayerState.maxResolution\n );\n layerState.minResolution = Math.max(\n layerState.minResolution,\n ownLayerState.minResolution\n );\n layerState.minZoom = Math.max(layerState.minZoom, ownLayerState.minZoom);\n layerState.maxZoom = Math.min(layerState.maxZoom, ownLayerState.maxZoom);\n if (ownLayerState.extent !== undefined) {\n if (layerState.extent !== undefined) {\n layerState.extent = getIntersection(\n layerState.extent,\n ownLayerState.extent\n );\n } else {\n layerState.extent = ownLayerState.extent;\n }\n }\n }\n\n return states;\n }\n\n /**\n * @return {import(\"../source/State.js\").default} Source state.\n */\n getSourceState() {\n return SourceState.READY;\n }\n}\n\nexport default LayerGroup;\n","/**\n * @module ol/MapEvent\n */\nimport Event from './events/Event.js';\n\n/**\n * @classdesc\n * Events emitted as map events are instances of this type.\n * See {@link module:ol/PluggableMap~PluggableMap} for which events trigger a map event.\n */\nclass MapEvent extends Event {\n /**\n * @param {string} type Event type.\n * @param {import(\"./PluggableMap.js\").default} map Map.\n * @param {?import(\"./PluggableMap.js\").FrameState=} opt_frameState Frame state.\n */\n constructor(type, map, opt_frameState) {\n super(type);\n\n /**\n * The map where the event occurred.\n * @type {import(\"./PluggableMap.js\").default}\n * @api\n */\n this.map = map;\n\n /**\n * The frame state at the time of the event.\n * @type {?import(\"./PluggableMap.js\").FrameState}\n * @api\n */\n this.frameState = opt_frameState !== undefined ? opt_frameState : null;\n }\n}\n\nexport default MapEvent;\n","/**\n * @module ol/MapBrowserEvent\n */\nimport MapEvent from './MapEvent.js';\n\n/**\n * @classdesc\n * Events emitted as map browser events are instances of this type.\n * See {@link module:ol/PluggableMap~PluggableMap} for which events trigger a map browser event.\n * @template {UIEvent} EVENT\n */\nclass MapBrowserEvent extends MapEvent {\n /**\n * @param {string} type Event type.\n * @param {import(\"./PluggableMap.js\").default} map Map.\n * @param {EVENT} originalEvent Original event.\n * @param {boolean=} opt_dragging Is the map currently being dragged?\n * @param {?import(\"./PluggableMap.js\").FrameState=} opt_frameState Frame state.\n */\n constructor(type, map, originalEvent, opt_dragging, opt_frameState) {\n super(type, map, opt_frameState);\n\n /**\n * The original browser event.\n * @const\n * @type {EVENT}\n * @api\n */\n this.originalEvent = originalEvent;\n\n /**\n * The map pixel relative to the viewport corresponding to the original browser event.\n * @type {?import(\"./pixel.js\").Pixel}\n */\n this.pixel_ = null;\n\n /**\n * The coordinate in the user projection corresponding to the original browser event.\n * @type {?import(\"./coordinate.js\").Coordinate}\n */\n this.coordinate_ = null;\n\n /**\n * Indicates if the map is currently being dragged. Only set for\n * `POINTERDRAG` and `POINTERMOVE` events. Default is `false`.\n *\n * @type {boolean}\n * @api\n */\n this.dragging = opt_dragging !== undefined ? opt_dragging : false;\n }\n\n /**\n * The map pixel relative to the viewport corresponding to the original event.\n * @type {import(\"./pixel.js\").Pixel}\n * @api\n */\n get pixel() {\n if (!this.pixel_) {\n this.pixel_ = this.map.getEventPixel(this.originalEvent);\n }\n return this.pixel_;\n }\n set pixel(pixel) {\n this.pixel_ = pixel;\n }\n\n /**\n * The coordinate corresponding to the original browser event. This will be in the user\n * projection if one is set. Otherwise it will be in the view projection.\n * @type {import(\"./coordinate.js\").Coordinate}\n * @api\n */\n get coordinate() {\n if (!this.coordinate_) {\n this.coordinate_ = this.map.getCoordinateFromPixel(this.pixel);\n }\n return this.coordinate_;\n }\n set coordinate(coordinate) {\n this.coordinate_ = coordinate;\n }\n\n /**\n * Prevents the default browser action.\n * See https://developer.mozilla.org/en-US/docs/Web/API/event.preventDefault.\n * @api\n */\n preventDefault() {\n super.preventDefault();\n this.originalEvent.preventDefault();\n }\n\n /**\n * Prevents further propagation of the current event.\n * See https://developer.mozilla.org/en-US/docs/Web/API/event.stopPropagation.\n * @api\n */\n stopPropagation() {\n super.stopPropagation();\n this.originalEvent.stopPropagation();\n }\n}\n\nexport default MapBrowserEvent;\n","/**\n * @module ol/MapBrowserEventType\n */\nimport EventType from './events/EventType.js';\n\n/**\n * Constants for event names.\n * @enum {string}\n */\nexport default {\n /**\n * A true single click with no dragging and no double click. Note that this\n * event is delayed by 250 ms to ensure that it is not a double click.\n * @event module:ol/MapBrowserEvent~MapBrowserEvent#singleclick\n * @api\n */\n SINGLECLICK: 'singleclick',\n\n /**\n * A click with no dragging. A double click will fire two of this.\n * @event module:ol/MapBrowserEvent~MapBrowserEvent#click\n * @api\n */\n CLICK: EventType.CLICK,\n\n /**\n * A true double click, with no dragging.\n * @event module:ol/MapBrowserEvent~MapBrowserEvent#dblclick\n * @api\n */\n DBLCLICK: EventType.DBLCLICK,\n\n /**\n * Triggered when a pointer is dragged.\n * @event module:ol/MapBrowserEvent~MapBrowserEvent#pointerdrag\n * @api\n */\n POINTERDRAG: 'pointerdrag',\n\n /**\n * Triggered when a pointer is moved. Note that on touch devices this is\n * triggered when the map is panned, so is not the same as mousemove.\n * @event module:ol/MapBrowserEvent~MapBrowserEvent#pointermove\n * @api\n */\n POINTERMOVE: 'pointermove',\n\n POINTERDOWN: 'pointerdown',\n POINTERUP: 'pointerup',\n POINTEROVER: 'pointerover',\n POINTEROUT: 'pointerout',\n POINTERENTER: 'pointerenter',\n POINTERLEAVE: 'pointerleave',\n POINTERCANCEL: 'pointercancel',\n};\n","/**\n * @module ol/pointer/EventType\n */\n\n/**\n * Constants for event names.\n * @enum {string}\n */\nexport default {\n POINTERMOVE: 'pointermove',\n POINTERDOWN: 'pointerdown',\n POINTERUP: 'pointerup',\n POINTEROVER: 'pointerover',\n POINTEROUT: 'pointerout',\n POINTERENTER: 'pointerenter',\n POINTERLEAVE: 'pointerleave',\n POINTERCANCEL: 'pointercancel',\n};\n","/**\n * @module ol/MapBrowserEventHandler\n */\n\nimport EventTarget from './events/Target.js';\nimport EventType from './events/EventType.js';\nimport MapBrowserEvent from './MapBrowserEvent.js';\nimport MapBrowserEventType from './MapBrowserEventType.js';\nimport PointerEventType from './pointer/EventType.js';\nimport {DEVICE_PIXEL_RATIO, PASSIVE_EVENT_LISTENERS} from './has.js';\nimport {listen, unlistenByKey} from './events.js';\n\nclass MapBrowserEventHandler extends EventTarget {\n /**\n * @param {import(\"./PluggableMap.js\").default} map The map with the viewport to listen to events on.\n * @param {number=} moveTolerance The minimal distance the pointer must travel to trigger a move.\n */\n constructor(map, moveTolerance) {\n super(map);\n\n /**\n * This is the element that we will listen to the real events on.\n * @type {import(\"./PluggableMap.js\").default}\n * @private\n */\n this.map_ = map;\n\n /**\n * @type {any}\n * @private\n */\n this.clickTimeoutId_;\n\n /**\n * @type {boolean}\n * @private\n */\n this.dragging_ = false;\n\n /**\n * @type {!Array<import(\"./events.js\").EventsKey>}\n * @private\n */\n this.dragListenerKeys_ = [];\n\n /**\n * @type {number}\n * @private\n */\n this.moveTolerance_ = moveTolerance\n ? moveTolerance * DEVICE_PIXEL_RATIO\n : DEVICE_PIXEL_RATIO;\n\n /**\n * The most recent \"down\" type event (or null if none have occurred).\n * Set on pointerdown.\n * @type {PointerEvent}\n * @private\n */\n this.down_ = null;\n\n const element = this.map_.getViewport();\n\n /**\n * @type {number}\n * @private\n */\n this.activePointers_ = 0;\n\n /**\n * @type {!Object<number, boolean>}\n * @private\n */\n this.trackedTouches_ = {};\n\n this.element_ = element;\n\n /**\n * @type {?import(\"./events.js\").EventsKey}\n * @private\n */\n this.pointerdownListenerKey_ = listen(\n element,\n PointerEventType.POINTERDOWN,\n this.handlePointerDown_,\n this\n );\n\n /**\n * @type {PointerEvent}\n * @private\n */\n this.originalPointerMoveEvent_;\n\n /**\n * @type {?import(\"./events.js\").EventsKey}\n * @private\n */\n this.relayedListenerKey_ = listen(\n element,\n PointerEventType.POINTERMOVE,\n this.relayEvent_,\n this\n );\n\n /**\n * @private\n */\n this.boundHandleTouchMove_ = this.handleTouchMove_.bind(this);\n\n this.element_.addEventListener(\n EventType.TOUCHMOVE,\n this.boundHandleTouchMove_,\n PASSIVE_EVENT_LISTENERS ? {passive: false} : false\n );\n }\n\n /**\n * @param {PointerEvent} pointerEvent Pointer\n * event.\n * @private\n */\n emulateClick_(pointerEvent) {\n let newEvent = new MapBrowserEvent(\n MapBrowserEventType.CLICK,\n this.map_,\n pointerEvent\n );\n this.dispatchEvent(newEvent);\n if (this.clickTimeoutId_ !== undefined) {\n // double-click\n clearTimeout(this.clickTimeoutId_);\n this.clickTimeoutId_ = undefined;\n newEvent = new MapBrowserEvent(\n MapBrowserEventType.DBLCLICK,\n this.map_,\n pointerEvent\n );\n this.dispatchEvent(newEvent);\n } else {\n // click\n this.clickTimeoutId_ = setTimeout(\n function () {\n this.clickTimeoutId_ = undefined;\n const newEvent = new MapBrowserEvent(\n MapBrowserEventType.SINGLECLICK,\n this.map_,\n pointerEvent\n );\n this.dispatchEvent(newEvent);\n }.bind(this),\n 250\n );\n }\n }\n\n /**\n * Keeps track on how many pointers are currently active.\n *\n * @param {PointerEvent} pointerEvent Pointer\n * event.\n * @private\n */\n updateActivePointers_(pointerEvent) {\n const event = pointerEvent;\n\n if (\n event.type == MapBrowserEventType.POINTERUP ||\n event.type == MapBrowserEventType.POINTERCANCEL\n ) {\n delete this.trackedTouches_[event.pointerId];\n } else if (event.type == MapBrowserEventType.POINTERDOWN) {\n this.trackedTouches_[event.pointerId] = true;\n }\n this.activePointers_ = Object.keys(this.trackedTouches_).length;\n }\n\n /**\n * @param {PointerEvent} pointerEvent Pointer\n * event.\n * @private\n */\n handlePointerUp_(pointerEvent) {\n this.updateActivePointers_(pointerEvent);\n const newEvent = new MapBrowserEvent(\n MapBrowserEventType.POINTERUP,\n this.map_,\n pointerEvent\n );\n this.dispatchEvent(newEvent);\n\n // We emulate click events on left mouse button click, touch contact, and pen\n // contact. isMouseActionButton returns true in these cases (evt.button is set\n // to 0).\n // See http://www.w3.org/TR/pointerevents/#button-states\n // We only fire click, singleclick, and doubleclick if nobody has called\n // event.stopPropagation() or event.preventDefault().\n if (\n !newEvent.propagationStopped &&\n !this.dragging_ &&\n this.isMouseActionButton_(pointerEvent)\n ) {\n this.emulateClick_(this.down_);\n }\n\n if (this.activePointers_ === 0) {\n this.dragListenerKeys_.forEach(unlistenByKey);\n this.dragListenerKeys_.length = 0;\n this.dragging_ = false;\n this.down_ = null;\n }\n }\n\n /**\n * @param {PointerEvent} pointerEvent Pointer\n * event.\n * @return {boolean} If the left mouse button was pressed.\n * @private\n */\n isMouseActionButton_(pointerEvent) {\n return pointerEvent.button === 0;\n }\n\n /**\n * @param {PointerEvent} pointerEvent Pointer\n * event.\n * @private\n */\n handlePointerDown_(pointerEvent) {\n this.updateActivePointers_(pointerEvent);\n const newEvent = new MapBrowserEvent(\n MapBrowserEventType.POINTERDOWN,\n this.map_,\n pointerEvent\n );\n this.dispatchEvent(newEvent);\n\n this.down_ = pointerEvent;\n\n if (this.dragListenerKeys_.length === 0) {\n this.dragListenerKeys_.push(\n listen(\n document,\n MapBrowserEventType.POINTERMOVE,\n this.handlePointerMove_,\n this\n ),\n listen(\n document,\n MapBrowserEventType.POINTERUP,\n this.handlePointerUp_,\n this\n ),\n /* Note that the listener for `pointercancel is set up on\n * `pointerEventHandler_` and not `documentPointerEventHandler_` like\n * the `pointerup` and `pointermove` listeners.\n *\n * The reason for this is the following: `TouchSource.vacuumTouches_()`\n * issues `pointercancel` events, when there was no `touchend` for a\n * `touchstart`. Now, let's say a first `touchstart` is registered on\n * `pointerEventHandler_`. The `documentPointerEventHandler_` is set up.\n * But `documentPointerEventHandler_` doesn't know about the first\n * `touchstart`. If there is no `touchend` for the `touchstart`, we can\n * only receive a `touchcancel` from `pointerEventHandler_`, because it is\n * only registered there.\n */\n listen(\n this.element_,\n MapBrowserEventType.POINTERCANCEL,\n this.handlePointerUp_,\n this\n )\n );\n if (\n this.element_.getRootNode &&\n this.element_.getRootNode() !== document\n ) {\n this.dragListenerKeys_.push(\n listen(\n this.element_.getRootNode(),\n MapBrowserEventType.POINTERUP,\n this.handlePointerUp_,\n this\n )\n );\n }\n }\n }\n\n /**\n * @param {PointerEvent} pointerEvent Pointer\n * event.\n * @private\n */\n handlePointerMove_(pointerEvent) {\n // Between pointerdown and pointerup, pointermove events are triggered.\n // To avoid a 'false' touchmove event to be dispatched, we test if the pointer\n // moved a significant distance.\n if (this.isMoving_(pointerEvent)) {\n this.dragging_ = true;\n const newEvent = new MapBrowserEvent(\n MapBrowserEventType.POINTERDRAG,\n this.map_,\n pointerEvent,\n this.dragging_\n );\n this.dispatchEvent(newEvent);\n }\n }\n\n /**\n * Wrap and relay a pointer event. Note that this requires that the type\n * string for the MapBrowserEvent matches the PointerEvent type.\n * @param {PointerEvent} pointerEvent Pointer\n * event.\n * @private\n */\n relayEvent_(pointerEvent) {\n this.originalPointerMoveEvent_ = pointerEvent;\n const dragging = !!(this.down_ && this.isMoving_(pointerEvent));\n this.dispatchEvent(\n new MapBrowserEvent(pointerEvent.type, this.map_, pointerEvent, dragging)\n );\n }\n\n /**\n * Flexible handling of a `touch-action: none` css equivalent: because calling\n * `preventDefault()` on a `pointermove` event does not stop native page scrolling\n * and zooming, we also listen for `touchmove` and call `preventDefault()` on it\n * when an interaction (currently `DragPan` handles the event.\n * @param {TouchEvent} event Event.\n * @private\n */\n handleTouchMove_(event) {\n // Due to https://github.com/mpizenberg/elm-pep/issues/2, `this.originalPointerMoveEvent_`\n // may not be initialized yet when we get here on a platform without native pointer events.\n if (\n !this.originalPointerMoveEvent_ ||\n this.originalPointerMoveEvent_.defaultPrevented\n ) {\n event.preventDefault();\n }\n }\n\n /**\n * @param {PointerEvent} pointerEvent Pointer\n * event.\n * @return {boolean} Is moving.\n * @private\n */\n isMoving_(pointerEvent) {\n return (\n this.dragging_ ||\n Math.abs(pointerEvent.clientX - this.down_.clientX) >\n this.moveTolerance_ ||\n Math.abs(pointerEvent.clientY - this.down_.clientY) > this.moveTolerance_\n );\n }\n\n /**\n * Clean up.\n */\n disposeInternal() {\n if (this.relayedListenerKey_) {\n unlistenByKey(this.relayedListenerKey_);\n this.relayedListenerKey_ = null;\n }\n this.element_.removeEventListener(\n EventType.TOUCHMOVE,\n this.boundHandleTouchMove_\n );\n\n if (this.pointerdownListenerKey_) {\n unlistenByKey(this.pointerdownListenerKey_);\n this.pointerdownListenerKey_ = null;\n }\n\n this.dragListenerKeys_.forEach(unlistenByKey);\n this.dragListenerKeys_.length = 0;\n\n this.element_ = null;\n super.disposeInternal();\n }\n}\n\nexport default MapBrowserEventHandler;\n","/**\n * @module ol/MapEventType\n */\n\n/**\n * @enum {string}\n */\nexport default {\n /**\n * Triggered after a map frame is rendered.\n * @event module:ol/MapEvent~MapEvent#postrender\n * @api\n */\n POSTRENDER: 'postrender',\n\n /**\n * Triggered when the map starts moving.\n * @event module:ol/MapEvent~MapEvent#movestart\n * @api\n */\n MOVESTART: 'movestart',\n\n /**\n * Triggered after the map is moved.\n * @event module:ol/MapEvent~MapEvent#moveend\n * @api\n */\n MOVEEND: 'moveend',\n};\n","/**\n * @module ol/MapProperty\n */\n\n/**\n * @enum {string}\n */\nexport default {\n LAYERGROUP: 'layergroup',\n SIZE: 'size',\n TARGET: 'target',\n VIEW: 'view',\n};\n","/**\n * @module ol/structs/PriorityQueue\n */\nimport {assert} from '../asserts.js';\nimport {clear} from '../obj.js';\n\n/**\n * @type {number}\n */\nexport const DROP = Infinity;\n\n/**\n * @classdesc\n * Priority queue.\n *\n * The implementation is inspired from the Closure Library's Heap class and\n * Python's heapq module.\n *\n * See http://closure-library.googlecode.com/svn/docs/closure_goog_structs_heap.js.source.html\n * and http://hg.python.org/cpython/file/2.7/Lib/heapq.py.\n *\n * @template T\n */\nclass PriorityQueue {\n /**\n * @param {function(T): number} priorityFunction Priority function.\n * @param {function(T): string} keyFunction Key function.\n */\n constructor(priorityFunction, keyFunction) {\n /**\n * @type {function(T): number}\n * @private\n */\n this.priorityFunction_ = priorityFunction;\n\n /**\n * @type {function(T): string}\n * @private\n */\n this.keyFunction_ = keyFunction;\n\n /**\n * @type {Array<T>}\n * @private\n */\n this.elements_ = [];\n\n /**\n * @type {Array<number>}\n * @private\n */\n this.priorities_ = [];\n\n /**\n * @type {!Object<string, boolean>}\n * @private\n */\n this.queuedElements_ = {};\n }\n\n /**\n * FIXME empty description for jsdoc\n */\n clear() {\n this.elements_.length = 0;\n this.priorities_.length = 0;\n clear(this.queuedElements_);\n }\n\n /**\n * Remove and return the highest-priority element. O(log N).\n * @return {T} Element.\n */\n dequeue() {\n const elements = this.elements_;\n const priorities = this.priorities_;\n const element = elements[0];\n if (elements.length == 1) {\n elements.length = 0;\n priorities.length = 0;\n } else {\n elements[0] = elements.pop();\n priorities[0] = priorities.pop();\n this.siftUp_(0);\n }\n const elementKey = this.keyFunction_(element);\n delete this.queuedElements_[elementKey];\n return element;\n }\n\n /**\n * Enqueue an element. O(log N).\n * @param {T} element Element.\n * @return {boolean} The element was added to the queue.\n */\n enqueue(element) {\n assert(!(this.keyFunction_(element) in this.queuedElements_), 31); // Tried to enqueue an `element` that was already added to the queue\n const priority = this.priorityFunction_(element);\n if (priority != DROP) {\n this.elements_.push(element);\n this.priorities_.push(priority);\n this.queuedElements_[this.keyFunction_(element)] = true;\n this.siftDown_(0, this.elements_.length - 1);\n return true;\n }\n return false;\n }\n\n /**\n * @return {number} Count.\n */\n getCount() {\n return this.elements_.length;\n }\n\n /**\n * Gets the index of the left child of the node at the given index.\n * @param {number} index The index of the node to get the left child for.\n * @return {number} The index of the left child.\n * @private\n */\n getLeftChildIndex_(index) {\n return index * 2 + 1;\n }\n\n /**\n * Gets the index of the right child of the node at the given index.\n * @param {number} index The index of the node to get the right child for.\n * @return {number} The index of the right child.\n * @private\n */\n getRightChildIndex_(index) {\n return index * 2 + 2;\n }\n\n /**\n * Gets the index of the parent of the node at the given index.\n * @param {number} index The index of the node to get the parent for.\n * @return {number} The index of the parent.\n * @private\n */\n getParentIndex_(index) {\n return (index - 1) >> 1;\n }\n\n /**\n * Make this a heap. O(N).\n * @private\n */\n heapify_() {\n let i;\n for (i = (this.elements_.length >> 1) - 1; i >= 0; i--) {\n this.siftUp_(i);\n }\n }\n\n /**\n * @return {boolean} Is empty.\n */\n isEmpty() {\n return this.elements_.length === 0;\n }\n\n /**\n * @param {string} key Key.\n * @return {boolean} Is key queued.\n */\n isKeyQueued(key) {\n return key in this.queuedElements_;\n }\n\n /**\n * @param {T} element Element.\n * @return {boolean} Is queued.\n */\n isQueued(element) {\n return this.isKeyQueued(this.keyFunction_(element));\n }\n\n /**\n * @param {number} index The index of the node to move down.\n * @private\n */\n siftUp_(index) {\n const elements = this.elements_;\n const priorities = this.priorities_;\n const count = elements.length;\n const element = elements[index];\n const priority = priorities[index];\n const startIndex = index;\n\n while (index < count >> 1) {\n const lIndex = this.getLeftChildIndex_(index);\n const rIndex = this.getRightChildIndex_(index);\n\n const smallerChildIndex =\n rIndex < count && priorities[rIndex] < priorities[lIndex]\n ? rIndex\n : lIndex;\n\n elements[index] = elements[smallerChildIndex];\n priorities[index] = priorities[smallerChildIndex];\n index = smallerChildIndex;\n }\n\n elements[index] = element;\n priorities[index] = priority;\n this.siftDown_(startIndex, index);\n }\n\n /**\n * @param {number} startIndex The index of the root.\n * @param {number} index The index of the node to move up.\n * @private\n */\n siftDown_(startIndex, index) {\n const elements = this.elements_;\n const priorities = this.priorities_;\n const element = elements[index];\n const priority = priorities[index];\n\n while (index > startIndex) {\n const parentIndex = this.getParentIndex_(index);\n if (priorities[parentIndex] > priority) {\n elements[index] = elements[parentIndex];\n priorities[index] = priorities[parentIndex];\n index = parentIndex;\n } else {\n break;\n }\n }\n elements[index] = element;\n priorities[index] = priority;\n }\n\n /**\n * FIXME empty description for jsdoc\n */\n reprioritize() {\n const priorityFunction = this.priorityFunction_;\n const elements = this.elements_;\n const priorities = this.priorities_;\n let index = 0;\n const n = elements.length;\n let element, i, priority;\n for (i = 0; i < n; ++i) {\n element = elements[i];\n priority = priorityFunction(element);\n if (priority == DROP) {\n delete this.queuedElements_[this.keyFunction_(element)];\n } else {\n priorities[index] = priority;\n elements[index++] = element;\n }\n }\n elements.length = index;\n priorities.length = index;\n this.heapify_();\n }\n}\n\nexport default PriorityQueue;\n","/**\n * @module ol/TileQueue\n */\nimport EventType from './events/EventType.js';\nimport PriorityQueue, {DROP} from './structs/PriorityQueue.js';\nimport TileState from './TileState.js';\n\n/**\n * @typedef {function(import(\"./Tile.js\").default, string, import(\"./coordinate.js\").Coordinate, number): number} PriorityFunction\n */\n\nclass TileQueue extends PriorityQueue {\n /**\n * @param {PriorityFunction} tilePriorityFunction Tile priority function.\n * @param {function(): ?} tileChangeCallback Function called on each tile change event.\n */\n constructor(tilePriorityFunction, tileChangeCallback) {\n super(\n /**\n * @param {Array} element Element.\n * @return {number} Priority.\n */\n function (element) {\n return tilePriorityFunction.apply(null, element);\n },\n /**\n * @param {Array} element Element.\n * @return {string} Key.\n */\n function (element) {\n return /** @type {import(\"./Tile.js\").default} */ (element[0]).getKey();\n }\n );\n\n /** @private */\n this.boundHandleTileChange_ = this.handleTileChange.bind(this);\n\n /**\n * @private\n * @type {function(): ?}\n */\n this.tileChangeCallback_ = tileChangeCallback;\n\n /**\n * @private\n * @type {number}\n */\n this.tilesLoading_ = 0;\n\n /**\n * @private\n * @type {!Object<string,boolean>}\n */\n this.tilesLoadingKeys_ = {};\n }\n\n /**\n * @param {Array} element Element.\n * @return {boolean} The element was added to the queue.\n */\n enqueue(element) {\n const added = super.enqueue(element);\n if (added) {\n const tile = element[0];\n tile.addEventListener(EventType.CHANGE, this.boundHandleTileChange_);\n }\n return added;\n }\n\n /**\n * @return {number} Number of tiles loading.\n */\n getTilesLoading() {\n return this.tilesLoading_;\n }\n\n /**\n * @param {import(\"./events/Event.js\").default} event Event.\n * @protected\n */\n handleTileChange(event) {\n const tile = /** @type {import(\"./Tile.js\").default} */ (event.target);\n const state = tile.getState();\n if (\n (tile.hifi && state === TileState.LOADED) ||\n state === TileState.ERROR ||\n state === TileState.EMPTY\n ) {\n tile.removeEventListener(EventType.CHANGE, this.boundHandleTileChange_);\n const tileKey = tile.getKey();\n if (tileKey in this.tilesLoadingKeys_) {\n delete this.tilesLoadingKeys_[tileKey];\n --this.tilesLoading_;\n }\n this.tileChangeCallback_();\n }\n }\n\n /**\n * @param {number} maxTotalLoading Maximum number tiles to load simultaneously.\n * @param {number} maxNewLoads Maximum number of new tiles to load.\n */\n loadMoreTiles(maxTotalLoading, maxNewLoads) {\n let newLoads = 0;\n let state, tile, tileKey;\n while (\n this.tilesLoading_ < maxTotalLoading &&\n newLoads < maxNewLoads &&\n this.getCount() > 0\n ) {\n tile = /** @type {import(\"./Tile.js\").default} */ (this.dequeue()[0]);\n tileKey = tile.getKey();\n state = tile.getState();\n if (state === TileState.IDLE && !(tileKey in this.tilesLoadingKeys_)) {\n this.tilesLoadingKeys_[tileKey] = true;\n ++this.tilesLoading_;\n ++newLoads;\n tile.load();\n }\n }\n }\n}\n\nexport default TileQueue;\n\n/**\n * @param {import('./PluggableMap.js').FrameState} frameState Frame state.\n * @param {import(\"./Tile.js\").default} tile Tile.\n * @param {string} tileSourceKey Tile source key.\n * @param {import(\"./coordinate.js\").Coordinate} tileCenter Tile center.\n * @param {number} tileResolution Tile resolution.\n * @return {number} Tile priority.\n */\nexport function getTilePriority(\n frameState,\n tile,\n tileSourceKey,\n tileCenter,\n tileResolution\n) {\n // Filter out tiles at higher zoom levels than the current zoom level, or that\n // are outside the visible extent.\n if (!frameState || !(tileSourceKey in frameState.wantedTiles)) {\n return DROP;\n }\n if (!frameState.wantedTiles[tileSourceKey][tile.getKey()]) {\n return DROP;\n }\n // Prioritize the highest zoom level tiles closest to the focus.\n // Tiles at higher zoom levels are prioritized using Math.log(tileResolution).\n // Within a zoom level, tiles are prioritized by the distance in pixels between\n // the center of the tile and the center of the viewport. The factor of 65536\n // means that the prioritization should behave as desired for tiles up to\n // 65536 * Math.log(2) = 45426 pixels from the focus.\n const center = frameState.viewState.center;\n const deltaX = tileCenter[0] - center[0];\n const deltaY = tileCenter[1] - center[1];\n return (\n 65536 * Math.log(tileResolution) +\n Math.sqrt(deltaX * deltaX + deltaY * deltaY) / tileResolution\n );\n}\n","/**\n * @module ol/ViewProperty\n */\n\n/**\n * @enum {string}\n */\nexport default {\n CENTER: 'center',\n RESOLUTION: 'resolution',\n ROTATION: 'rotation',\n};\n","/**\n * @module ol/tilegrid/common\n */\n\n/**\n * Default maximum zoom for default tile grids.\n * @type {number}\n */\nexport const DEFAULT_MAX_ZOOM = 42;\n\n/**\n * Default tile size.\n * @type {number}\n */\nexport const DEFAULT_TILE_SIZE = 256;\n","/**\n * @module ol/centerconstraint\n */\nimport {clamp} from './math.js';\n\n/**\n * @typedef {function((import(\"./coordinate.js\").Coordinate|undefined), number, import(\"./size.js\").Size, boolean=): (import(\"./coordinate.js\").Coordinate|undefined)} Type\n */\n\n/**\n * @param {import(\"./extent.js\").Extent} extent Extent.\n * @param {boolean} onlyCenter If true, the constraint will only apply to the view center.\n * @param {boolean} smooth If true, the view will be able to go slightly out of the given extent\n * (only during interaction and animation).\n * @return {Type} The constraint.\n */\nexport function createExtent(extent, onlyCenter, smooth) {\n return (\n /**\n * @param {import(\"./coordinate.js\").Coordinate|undefined} center Center.\n * @param {number} resolution Resolution.\n * @param {import(\"./size.js\").Size} size Viewport size; unused if `onlyCenter` was specified.\n * @param {boolean=} opt_isMoving True if an interaction or animation is in progress.\n * @return {import(\"./coordinate.js\").Coordinate|undefined} Center.\n */\n function (center, resolution, size, opt_isMoving) {\n if (center) {\n const viewWidth = onlyCenter ? 0 : size[0] * resolution;\n const viewHeight = onlyCenter ? 0 : size[1] * resolution;\n let minX = extent[0] + viewWidth / 2;\n let maxX = extent[2] - viewWidth / 2;\n let minY = extent[1] + viewHeight / 2;\n let maxY = extent[3] - viewHeight / 2;\n\n // note: when zooming out of bounds, min and max values for x and y may\n // end up inverted (min > max); this has to be accounted for\n if (minX > maxX) {\n minX = (maxX + minX) / 2;\n maxX = minX;\n }\n if (minY > maxY) {\n minY = (maxY + minY) / 2;\n maxY = minY;\n }\n\n let x = clamp(center[0], minX, maxX);\n let y = clamp(center[1], minY, maxY);\n const ratio = 30 * resolution;\n\n // during an interaction, allow some overscroll\n if (opt_isMoving && smooth) {\n x +=\n -ratio * Math.log(1 + Math.max(0, minX - center[0]) / ratio) +\n ratio * Math.log(1 + Math.max(0, center[0] - maxX) / ratio);\n y +=\n -ratio * Math.log(1 + Math.max(0, minY - center[1]) / ratio) +\n ratio * Math.log(1 + Math.max(0, center[1] - maxY) / ratio);\n }\n\n return [x, y];\n } else {\n return undefined;\n }\n }\n );\n}\n\n/**\n * @param {import(\"./coordinate.js\").Coordinate=} center Center.\n * @return {import(\"./coordinate.js\").Coordinate|undefined} Center.\n */\nexport function none(center) {\n return center;\n}\n","/**\n * @module ol/resolutionconstraint\n */\nimport {clamp} from './math.js';\nimport {getHeight, getWidth} from './extent.js';\nimport {linearFindNearest} from './array.js';\n\n/**\n * @typedef {function((number|undefined), number, import(\"./size.js\").Size, boolean=): (number|undefined)} Type\n */\n\n/**\n * Returns a modified resolution taking into account the viewport size and maximum\n * allowed extent.\n * @param {number} resolution Resolution\n * @param {import(\"./extent.js\").Extent=} maxExtent Maximum allowed extent.\n * @param {import(\"./size.js\").Size} viewportSize Viewport size.\n * @param {boolean} showFullExtent Whether to show the full extent.\n * @return {number} Capped resolution.\n */\nfunction getViewportClampedResolution(\n resolution,\n maxExtent,\n viewportSize,\n showFullExtent\n) {\n const xResolution = getWidth(maxExtent) / viewportSize[0];\n const yResolution = getHeight(maxExtent) / viewportSize[1];\n\n if (showFullExtent) {\n return Math.min(resolution, Math.max(xResolution, yResolution));\n }\n return Math.min(resolution, Math.min(xResolution, yResolution));\n}\n\n/**\n * Returns a modified resolution to be between maxResolution and minResolution while\n * still allowing the value to be slightly out of bounds.\n * Note: the computation is based on the logarithm function (ln):\n * - at 1, ln(x) is 0\n * - above 1, ln(x) keeps increasing but at a much slower pace than x\n * The final result is clamped to prevent getting too far away from bounds.\n * @param {number} resolution Resolution.\n * @param {number} maxResolution Max resolution.\n * @param {number} minResolution Min resolution.\n * @return {number} Smoothed resolution.\n */\nfunction getSmoothClampedResolution(resolution, maxResolution, minResolution) {\n let result = Math.min(resolution, maxResolution);\n const ratio = 50;\n\n result *=\n Math.log(1 + ratio * Math.max(0, resolution / maxResolution - 1)) / ratio +\n 1;\n if (minResolution) {\n result = Math.max(result, minResolution);\n result /=\n Math.log(1 + ratio * Math.max(0, minResolution / resolution - 1)) /\n ratio +\n 1;\n }\n return clamp(result, minResolution / 2, maxResolution * 2);\n}\n\n/**\n * @param {Array<number>} resolutions Resolutions.\n * @param {boolean=} opt_smooth If true, the view will be able to slightly exceed resolution limits. Default: true.\n * @param {import(\"./extent.js\").Extent=} opt_maxExtent Maximum allowed extent.\n * @param {boolean=} opt_showFullExtent If true, allows us to show the full extent. Default: false.\n * @return {Type} Zoom function.\n */\nexport function createSnapToResolutions(\n resolutions,\n opt_smooth,\n opt_maxExtent,\n opt_showFullExtent\n) {\n return (\n /**\n * @param {number|undefined} resolution Resolution.\n * @param {number} direction Direction.\n * @param {import(\"./size.js\").Size} size Viewport size.\n * @param {boolean=} opt_isMoving True if an interaction or animation is in progress.\n * @return {number|undefined} Resolution.\n */\n function (resolution, direction, size, opt_isMoving) {\n if (resolution !== undefined) {\n const maxResolution = resolutions[0];\n const minResolution = resolutions[resolutions.length - 1];\n const cappedMaxRes = opt_maxExtent\n ? getViewportClampedResolution(\n maxResolution,\n opt_maxExtent,\n size,\n opt_showFullExtent\n )\n : maxResolution;\n\n // during interacting or animating, allow intermediary values\n if (opt_isMoving) {\n const smooth = opt_smooth !== undefined ? opt_smooth : true;\n if (!smooth) {\n return clamp(resolution, minResolution, cappedMaxRes);\n }\n return getSmoothClampedResolution(\n resolution,\n cappedMaxRes,\n minResolution\n );\n }\n\n const capped = Math.min(cappedMaxRes, resolution);\n const z = Math.floor(linearFindNearest(resolutions, capped, direction));\n if (resolutions[z] > cappedMaxRes && z < resolutions.length - 1) {\n return resolutions[z + 1];\n }\n return resolutions[z];\n } else {\n return undefined;\n }\n }\n );\n}\n\n/**\n * @param {number} power Power.\n * @param {number} maxResolution Maximum resolution.\n * @param {number=} opt_minResolution Minimum resolution.\n * @param {boolean=} opt_smooth If true, the view will be able to slightly exceed resolution limits. Default: true.\n * @param {import(\"./extent.js\").Extent=} opt_maxExtent Maximum allowed extent.\n * @param {boolean=} opt_showFullExtent If true, allows us to show the full extent. Default: false.\n * @return {Type} Zoom function.\n */\nexport function createSnapToPower(\n power,\n maxResolution,\n opt_minResolution,\n opt_smooth,\n opt_maxExtent,\n opt_showFullExtent\n) {\n return (\n /**\n * @param {number|undefined} resolution Resolution.\n * @param {number} direction Direction.\n * @param {import(\"./size.js\").Size} size Viewport size.\n * @param {boolean=} opt_isMoving True if an interaction or animation is in progress.\n * @return {number|undefined} Resolution.\n */\n function (resolution, direction, size, opt_isMoving) {\n if (resolution !== undefined) {\n const cappedMaxRes = opt_maxExtent\n ? getViewportClampedResolution(\n maxResolution,\n opt_maxExtent,\n size,\n opt_showFullExtent\n )\n : maxResolution;\n const minResolution =\n opt_minResolution !== undefined ? opt_minResolution : 0;\n\n // during interacting or animating, allow intermediary values\n if (opt_isMoving) {\n const smooth = opt_smooth !== undefined ? opt_smooth : true;\n if (!smooth) {\n return clamp(resolution, minResolution, cappedMaxRes);\n }\n return getSmoothClampedResolution(\n resolution,\n cappedMaxRes,\n minResolution\n );\n }\n\n const tolerance = 1e-9;\n const minZoomLevel = Math.ceil(\n Math.log(maxResolution / cappedMaxRes) / Math.log(power) - tolerance\n );\n const offset = -direction * (0.5 - tolerance) + 0.5;\n const capped = Math.min(cappedMaxRes, resolution);\n const cappedZoomLevel = Math.floor(\n Math.log(maxResolution / capped) / Math.log(power) + offset\n );\n const zoomLevel = Math.max(minZoomLevel, cappedZoomLevel);\n const newResolution = maxResolution / Math.pow(power, zoomLevel);\n return clamp(newResolution, minResolution, cappedMaxRes);\n } else {\n return undefined;\n }\n }\n );\n}\n\n/**\n * @param {number} maxResolution Max resolution.\n * @param {number} minResolution Min resolution.\n * @param {boolean=} opt_smooth If true, the view will be able to slightly exceed resolution limits. Default: true.\n * @param {import(\"./extent.js\").Extent=} opt_maxExtent Maximum allowed extent.\n * @param {boolean=} opt_showFullExtent If true, allows us to show the full extent. Default: false.\n * @return {Type} Zoom function.\n */\nexport function createMinMaxResolution(\n maxResolution,\n minResolution,\n opt_smooth,\n opt_maxExtent,\n opt_showFullExtent\n) {\n return (\n /**\n * @param {number|undefined} resolution Resolution.\n * @param {number} direction Direction.\n * @param {import(\"./size.js\").Size} size Viewport size.\n * @param {boolean=} opt_isMoving True if an interaction or animation is in progress.\n * @return {number|undefined} Resolution.\n */\n function (resolution, direction, size, opt_isMoving) {\n if (resolution !== undefined) {\n const cappedMaxRes = opt_maxExtent\n ? getViewportClampedResolution(\n maxResolution,\n opt_maxExtent,\n size,\n opt_showFullExtent\n )\n : maxResolution;\n const smooth = opt_smooth !== undefined ? opt_smooth : true;\n\n if (!smooth || !opt_isMoving) {\n return clamp(resolution, minResolution, cappedMaxRes);\n }\n return getSmoothClampedResolution(\n resolution,\n cappedMaxRes,\n minResolution\n );\n } else {\n return undefined;\n }\n }\n );\n}\n","/**\n * @module ol/rotationconstraint\n */\nimport {toRadians} from './math.js';\n\n/**\n * @typedef {function((number|undefined), boolean=): (number|undefined)} Type\n */\n\n/**\n * @param {number|undefined} rotation Rotation.\n * @return {number|undefined} Rotation.\n */\nexport function disable(rotation) {\n if (rotation !== undefined) {\n return 0;\n } else {\n return undefined;\n }\n}\n\n/**\n * @param {number|undefined} rotation Rotation.\n * @return {number|undefined} Rotation.\n */\nexport function none(rotation) {\n if (rotation !== undefined) {\n return rotation;\n } else {\n return undefined;\n }\n}\n\n/**\n * @param {number} n N.\n * @return {Type} Rotation constraint.\n */\nexport function createSnapToN(n) {\n const theta = (2 * Math.PI) / n;\n return (\n /**\n * @param {number|undefined} rotation Rotation.\n * @param {boolean=} opt_isMoving True if an interaction or animation is in progress.\n * @return {number|undefined} Rotation.\n */\n function (rotation, opt_isMoving) {\n if (opt_isMoving) {\n return rotation;\n }\n\n if (rotation !== undefined) {\n rotation = Math.floor(rotation / theta + 0.5) * theta;\n return rotation;\n } else {\n return undefined;\n }\n }\n );\n}\n\n/**\n * @param {number=} opt_tolerance Tolerance.\n * @return {Type} Rotation constraint.\n */\nexport function createSnapToZero(opt_tolerance) {\n const tolerance = opt_tolerance || toRadians(5);\n return (\n /**\n * @param {number|undefined} rotation Rotation.\n * @param {boolean=} opt_isMoving True if an interaction or animation is in progress.\n * @return {number|undefined} Rotation.\n */\n function (rotation, opt_isMoving) {\n if (opt_isMoving) {\n return rotation;\n }\n\n if (rotation !== undefined) {\n if (Math.abs(rotation) <= tolerance) {\n return 0;\n } else {\n return rotation;\n }\n } else {\n return undefined;\n }\n }\n );\n}\n","/**\n * @module ol/View\n */\nimport BaseObject from './Object.js';\nimport GeometryType from './geom/GeometryType.js';\nimport Units from './proj/Units.js';\nimport ViewHint from './ViewHint.js';\nimport ViewProperty from './ViewProperty.js';\nimport {DEFAULT_TILE_SIZE} from './tilegrid/common.js';\nimport {\n METERS_PER_UNIT,\n createProjection,\n fromUserCoordinate,\n fromUserExtent,\n getUserProjection,\n toUserCoordinate,\n toUserExtent,\n} from './proj.js';\nimport {VOID} from './functions.js';\nimport {\n add as addCoordinate,\n equals as coordinatesEqual,\n rotate as rotateCoordinate,\n} from './coordinate.js';\nimport {assert} from './asserts.js';\nimport {assign} from './obj.js';\nimport {none as centerNone, createExtent} from './centerconstraint.js';\nimport {clamp, modulo} from './math.js';\nimport {createMinMaxResolution} from './resolutionconstraint.js';\nimport {\n createSnapToN,\n createSnapToZero,\n disable,\n none as rotationNone,\n} from './rotationconstraint.js';\nimport {\n createSnapToPower,\n createSnapToResolutions,\n} from './resolutionconstraint.js';\nimport {easeOut} from './easing.js';\nimport {equals} from './coordinate.js';\nimport {\n getCenter,\n getForViewAndSize,\n getHeight,\n getWidth,\n isEmpty,\n} from './extent.js';\nimport {inAndOut} from './easing.js';\nimport {linearFindNearest} from './array.js';\nimport {fromExtent as polygonFromExtent} from './geom/Polygon.js';\n\n/**\n * An animation configuration\n *\n * @typedef {Object} Animation\n * @property {import(\"./coordinate.js\").Coordinate} [sourceCenter]\n * @property {import(\"./coordinate.js\").Coordinate} [targetCenter]\n * @property {number} [sourceResolution]\n * @property {number} [targetResolution]\n * @property {number} [sourceRotation]\n * @property {number} [targetRotation]\n * @property {import(\"./coordinate.js\").Coordinate} [anchor]\n * @property {number} start\n * @property {number} duration\n * @property {boolean} complete\n * @property {function(number):number} easing\n * @property {function(boolean):void} callback\n */\n\n/**\n * @typedef {Object} Constraints\n * @property {import(\"./centerconstraint.js\").Type} center\n * @property {import(\"./resolutionconstraint.js\").Type} resolution\n * @property {import(\"./rotationconstraint.js\").Type} rotation\n */\n\n/**\n * @typedef {Object} FitOptions\n * @property {import(\"./size.js\").Size} [size] The size in pixels of the box to fit\n * the extent into. Default is the current size of the first map in the DOM that\n * uses this view, or `[100, 100]` if no such map is found.\n * @property {!Array<number>} [padding=[0, 0, 0, 0]] Padding (in pixels) to be\n * cleared inside the view. Values in the array are top, right, bottom and left\n * padding.\n * @property {boolean} [nearest=false] If the view `constrainResolution` option is `true`,\n * get the nearest extent instead of the closest that actually fits the view.\n * @property {number} [minResolution=0] Minimum resolution that we zoom to.\n * @property {number} [maxZoom] Maximum zoom level that we zoom to. If\n * `minResolution` is given, this property is ignored.\n * @property {number} [duration] The duration of the animation in milliseconds.\n * By default, there is no animation to the target extent.\n * @property {function(number):number} [easing] The easing function used during\n * the animation (defaults to {@link module:ol/easing~inAndOut}).\n * The function will be called for each frame with a number representing a\n * fraction of the animation's duration. The function should return a number\n * between 0 and 1 representing the progress toward the destination state.\n * @property {function(boolean):void} [callback] Function called when the view is in\n * its final position. The callback will be called with `true` if the animation\n * series completed on its own or `false` if it was cancelled.\n */\n\n/**\n * @typedef {Object} ViewOptions\n * @property {import(\"./coordinate.js\").Coordinate} [center] The initial center for\n * the view. If a user projection is not set, the coordinate system for the center is\n * specified with the `projection` option. Layer sources will not be fetched if this\n * is not set, but the center can be set later with {@link #setCenter}.\n * @property {boolean|number} [constrainRotation=true] Rotation constraint.\n * `false` means no constraint. `true` means no constraint, but snap to zero\n * near zero. A number constrains the rotation to that number of values. For\n * example, `4` will constrain the rotation to 0, 90, 180, and 270 degrees.\n * @property {boolean} [enableRotation=true] Enable rotation.\n * If `false`, a rotation constraint that always sets the rotation to zero is\n * used. The `constrainRotation` option has no effect if `enableRotation` is\n * `false`.\n * @property {import(\"./extent.js\").Extent} [extent] The extent that constrains the\n * view, in other words, nothing outside of this extent can be visible on the map.\n * @property {boolean} [constrainOnlyCenter=false] If true, the extent\n * constraint will only apply to the view center and not the whole extent.\n * @property {boolean} [smoothExtentConstraint=true] If true, the extent\n * constraint will be applied smoothly, i.e. allow the view to go slightly outside\n * of the given `extent`.\n * @property {number} [maxResolution] The maximum resolution used to determine\n * the resolution constraint. It is used together with `minResolution` (or\n * `maxZoom`) and `zoomFactor`. If unspecified it is calculated in such a way\n * that the projection's validity extent fits in a 256x256 px tile. If the\n * projection is Spherical Mercator (the default) then `maxResolution` defaults\n * to `40075016.68557849 / 256 = 156543.03392804097`.\n * @property {number} [minResolution] The minimum resolution used to determine\n * the resolution constraint. It is used together with `maxResolution` (or\n * `minZoom`) and `zoomFactor`. If unspecified it is calculated assuming 29\n * zoom levels (with a factor of 2). If the projection is Spherical Mercator\n * (the default) then `minResolution` defaults to\n * `40075016.68557849 / 256 / Math.pow(2, 28) = 0.0005831682455839253`.\n * @property {number} [maxZoom=28] The maximum zoom level used to determine the\n * resolution constraint. It is used together with `minZoom` (or\n * `maxResolution`) and `zoomFactor`. Note that if `minResolution` is also\n * provided, it is given precedence over `maxZoom`.\n * @property {number} [minZoom=0] The minimum zoom level used to determine the\n * resolution constraint. It is used together with `maxZoom` (or\n * `minResolution`) and `zoomFactor`. Note that if `maxResolution` is also\n * provided, it is given precedence over `minZoom`.\n * @property {boolean} [multiWorld=false] If `false` the view is constrained so\n * only one world is visible, and you cannot pan off the edge. If `true` the map\n * may show multiple worlds at low zoom levels. Only used if the `projection` is\n * global. Note that if `extent` is also provided it is given precedence.\n * @property {boolean} [constrainResolution=false] If true, the view will always\n * animate to the closest zoom level after an interaction; false means\n * intermediary zoom levels are allowed.\n * @property {boolean} [smoothResolutionConstraint=true] If true, the resolution\n * min/max values will be applied smoothly, i. e. allow the view to exceed slightly\n * the given resolution or zoom bounds.\n * @property {boolean} [showFullExtent=false] Allow the view to be zoomed out to\n * show the full configured extent. By default, when a view is configured with an\n * extent, users will not be able to zoom out so the viewport exceeds the extent in\n * either dimension. This means the full extent may not be visible if the viewport\n * is taller or wider than the aspect ratio of the configured extent. If\n * showFullExtent is true, the user will be able to zoom out so that the viewport\n * exceeds the height or width of the configured extent, but not both, allowing the\n * full extent to be shown.\n * @property {import(\"./proj.js\").ProjectionLike} [projection='EPSG:3857'] The\n * projection. The default is Spherical Mercator.\n * @property {number} [resolution] The initial resolution for the view. The\n * units are `projection` units per pixel (e.g. meters per pixel). An\n * alternative to setting this is to set `zoom`. Layer sources will not be\n * fetched if neither this nor `zoom` are defined, but they can be set later\n * with {@link #setZoom} or {@link #setResolution}.\n * @property {Array<number>} [resolutions] Resolutions to determine the\n * resolution constraint. If set the `maxResolution`, `minResolution`,\n * `minZoom`, `maxZoom`, and `zoomFactor` options are ignored.\n * @property {number} [rotation=0] The initial rotation for the view in radians\n * (positive rotation clockwise, 0 means North).\n * @property {number} [zoom] Only used if `resolution` is not defined. Zoom\n * level used to calculate the initial resolution for the view.\n * @property {number} [zoomFactor=2] The zoom factor used to compute the\n * corresponding resolution.\n */\n\n/**\n * @typedef {Object} AnimationOptions\n * @property {import(\"./coordinate.js\").Coordinate} [center] The center of the view at the end of\n * the animation.\n * @property {number} [zoom] The zoom level of the view at the end of the\n * animation. This takes precedence over `resolution`.\n * @property {number} [resolution] The resolution of the view at the end\n * of the animation. If `zoom` is also provided, this option will be ignored.\n * @property {number} [rotation] The rotation of the view at the end of\n * the animation.\n * @property {import(\"./coordinate.js\").Coordinate} [anchor] Optional anchor to remain fixed\n * during a rotation or resolution animation.\n * @property {number} [duration=1000] The duration of the animation in milliseconds.\n * @property {function(number):number} [easing] The easing function used\n * during the animation (defaults to {@link module:ol/easing~inAndOut}).\n * The function will be called for each frame with a number representing a\n * fraction of the animation's duration. The function should return a number\n * between 0 and 1 representing the progress toward the destination state.\n */\n\n/**\n * @typedef {Object} State\n * @property {import(\"./coordinate.js\").Coordinate} center\n * @property {import(\"./proj/Projection.js\").default} projection\n * @property {number} resolution\n * @property {number} rotation\n * @property {number} zoom\n */\n\n/**\n * Default min zoom level for the map view.\n * @type {number}\n */\nconst DEFAULT_MIN_ZOOM = 0;\n\n/**\n * @classdesc\n * A View object represents a simple 2D view of the map.\n *\n * This is the object to act upon to change the center, resolution,\n * and rotation of the map.\n *\n * A View has a `projection`. The projection determines the\n * coordinate system of the center, and its units determine the units of the\n * resolution (projection units per pixel). The default projection is\n * Spherical Mercator (EPSG:3857).\n *\n * ### The view states\n *\n * A View is determined by three states: `center`, `resolution`,\n * and `rotation`. Each state has a corresponding getter and setter, e.g.\n * `getCenter` and `setCenter` for the `center` state.\n *\n * The `zoom` state is actually not saved on the view: all computations\n * internally use the `resolution` state. Still, the `setZoom` and `getZoom`\n * methods are available, as well as `getResolutionForZoom` and\n * `getZoomForResolution` to switch from one system to the other.\n *\n * ### The constraints\n *\n * `setCenter`, `setResolution` and `setRotation` can be used to change the\n * states of the view, but any constraint defined in the constructor will\n * be applied along the way.\n *\n * A View object can have a *resolution constraint*, a *rotation constraint*\n * and a *center constraint*.\n *\n * The *resolution constraint* typically restricts min/max values and\n * snaps to specific resolutions. It is determined by the following\n * options: `resolutions`, `maxResolution`, `maxZoom` and `zoomFactor`.\n * If `resolutions` is set, the other three options are ignored. See\n * documentation for each option for more information. By default, the view\n * only has a min/max restriction and allow intermediary zoom levels when\n * pinch-zooming for example.\n *\n * The *rotation constraint* snaps to specific angles. It is determined\n * by the following options: `enableRotation` and `constrainRotation`.\n * By default rotation is allowed and its value is snapped to zero when approaching the\n * horizontal.\n *\n * The *center constraint* is determined by the `extent` option. By\n * default the view center is not constrained at all.\n *\n * ### Changing the view state\n *\n * It is important to note that `setZoom`, `setResolution`, `setCenter` and\n * `setRotation` are subject to the above mentioned constraints. As such, it\n * may sometimes not be possible to know in advance the resulting state of the\n * View. For example, calling `setResolution(10)` does not guarantee that\n * `getResolution()` will return `10`.\n *\n * A consequence of this is that, when applying a delta on the view state, one\n * should use `adjustCenter`, `adjustRotation`, `adjustZoom` and `adjustResolution`\n * rather than the corresponding setters. This will let view do its internal\n * computations. Besides, the `adjust*` methods also take an `opt_anchor`\n * argument which allows specifying an origin for the transformation.\n *\n * ### Interacting with the view\n *\n * View constraints are usually only applied when the view is *at rest*, meaning that\n * no interaction or animation is ongoing. As such, if the user puts the view in a\n * state that is not equivalent to a constrained one (e.g. rotating the view when\n * the snap angle is 0), an animation will be triggered at the interaction end to\n * put back the view to a stable state;\n *\n * @api\n */\nclass View extends BaseObject {\n /**\n * @param {ViewOptions=} opt_options View options.\n */\n constructor(opt_options) {\n super();\n\n const options = assign({}, opt_options);\n\n /**\n * @private\n * @type {Array<number>}\n */\n this.hints_ = [0, 0];\n\n /**\n * @private\n * @type {Array<Array<Animation>>}\n */\n this.animations_ = [];\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.updateAnimationKey_;\n\n /**\n * @private\n * @const\n * @type {import(\"./proj/Projection.js\").default}\n */\n this.projection_ = createProjection(options.projection, 'EPSG:3857');\n\n /**\n * @private\n * @type {import(\"./size.js\").Size}\n */\n this.viewportSize_ = [100, 100];\n\n /**\n * @private\n * @type {import(\"./coordinate.js\").Coordinate|undefined}\n */\n this.targetCenter_ = null;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.targetResolution_;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.targetRotation_;\n\n /**\n * @private\n * @type {import(\"./coordinate.js\").Coordinate|undefined}\n */\n this.cancelAnchor_ = undefined;\n\n if (options.center) {\n options.center = fromUserCoordinate(options.center, this.projection_);\n }\n if (options.extent) {\n options.extent = fromUserExtent(options.extent, this.projection_);\n }\n\n this.applyOptions_(options);\n }\n\n /**\n * Set up the view with the given options.\n * @param {ViewOptions} options View options.\n */\n applyOptions_(options) {\n /**\n * @type {Object<string, *>}\n */\n const properties = {};\n\n const resolutionConstraintInfo = createResolutionConstraint(options);\n\n /**\n * @private\n * @type {number}\n */\n this.maxResolution_ = resolutionConstraintInfo.maxResolution;\n\n /**\n * @private\n * @type {number}\n */\n this.minResolution_ = resolutionConstraintInfo.minResolution;\n\n /**\n * @private\n * @type {number}\n */\n this.zoomFactor_ = resolutionConstraintInfo.zoomFactor;\n\n /**\n * @private\n * @type {Array<number>|undefined}\n */\n this.resolutions_ = options.resolutions;\n\n /**\n * @private\n * @type {number}\n */\n this.minZoom_ = resolutionConstraintInfo.minZoom;\n\n const centerConstraint = createCenterConstraint(options);\n const resolutionConstraint = resolutionConstraintInfo.constraint;\n const rotationConstraint = createRotationConstraint(options);\n\n /**\n * @private\n * @type {Constraints}\n */\n this.constraints_ = {\n center: centerConstraint,\n resolution: resolutionConstraint,\n rotation: rotationConstraint,\n };\n\n this.setRotation(options.rotation !== undefined ? options.rotation : 0);\n this.setCenterInternal(\n options.center !== undefined ? options.center : null\n );\n if (options.resolution !== undefined) {\n this.setResolution(options.resolution);\n } else if (options.zoom !== undefined) {\n this.setZoom(options.zoom);\n }\n\n this.setProperties(properties);\n\n /**\n * @private\n * @type {ViewOptions}\n */\n this.options_ = options;\n }\n\n /**\n * Get an updated version of the view options used to construct the view. The\n * current resolution (or zoom), center, and rotation are applied to any stored\n * options. The provided options can be used to apply new min/max zoom or\n * resolution limits.\n * @param {ViewOptions} newOptions New options to be applied.\n * @return {ViewOptions} New options updated with the current view state.\n */\n getUpdatedOptions_(newOptions) {\n const options = assign({}, this.options_);\n\n // preserve resolution (or zoom)\n if (options.resolution !== undefined) {\n options.resolution = this.getResolution();\n } else {\n options.zoom = this.getZoom();\n }\n\n // preserve center\n options.center = this.getCenterInternal();\n\n // preserve rotation\n options.rotation = this.getRotation();\n\n return assign({}, options, newOptions);\n }\n\n /**\n * Animate the view. The view's center, zoom (or resolution), and rotation\n * can be animated for smooth transitions between view states. For example,\n * to animate the view to a new zoom level:\n *\n * view.animate({zoom: view.getZoom() + 1});\n *\n * By default, the animation lasts one second and uses in-and-out easing. You\n * can customize this behavior by including `duration` (in milliseconds) and\n * `easing` options (see {@link module:ol/easing}).\n *\n * To chain together multiple animations, call the method with multiple\n * animation objects. For example, to first zoom and then pan:\n *\n * view.animate({zoom: 10}, {center: [0, 0]});\n *\n * If you provide a function as the last argument to the animate method, it\n * will get called at the end of an animation series. The callback will be\n * called with `true` if the animation series completed on its own or `false`\n * if it was cancelled.\n *\n * Animations are cancelled by user interactions (e.g. dragging the map) or by\n * calling `view.setCenter()`, `view.setResolution()`, or `view.setRotation()`\n * (or another method that calls one of these).\n *\n * @param {...(AnimationOptions|function(boolean): void)} var_args Animation\n * options. Multiple animations can be run in series by passing multiple\n * options objects. To run multiple animations in parallel, call the method\n * multiple times. An optional callback can be provided as a final\n * argument. The callback will be called with a boolean indicating whether\n * the animation completed without being cancelled.\n * @api\n */\n animate(var_args) {\n if (this.isDef() && !this.getAnimating()) {\n this.resolveConstraints(0);\n }\n const args = new Array(arguments.length);\n for (let i = 0; i < args.length; ++i) {\n let options = arguments[i];\n if (options.center) {\n options = assign({}, options);\n options.center = fromUserCoordinate(\n options.center,\n this.getProjection()\n );\n }\n if (options.anchor) {\n options = assign({}, options);\n options.anchor = fromUserCoordinate(\n options.anchor,\n this.getProjection()\n );\n }\n args[i] = options;\n }\n this.animateInternal.apply(this, args);\n }\n\n /**\n * @param {...(AnimationOptions|function(boolean): void)} var_args Animation options.\n */\n animateInternal(var_args) {\n let animationCount = arguments.length;\n let callback;\n if (\n animationCount > 1 &&\n typeof arguments[animationCount - 1] === 'function'\n ) {\n callback = arguments[animationCount - 1];\n --animationCount;\n }\n if (!this.isDef()) {\n // if view properties are not yet set, shortcut to the final state\n const state = arguments[animationCount - 1];\n if (state.center) {\n this.setCenterInternal(state.center);\n }\n if (state.zoom !== undefined) {\n this.setZoom(state.zoom);\n }\n if (state.rotation !== undefined) {\n this.setRotation(state.rotation);\n }\n if (callback) {\n animationCallback(callback, true);\n }\n return;\n }\n let start = Date.now();\n let center = this.targetCenter_.slice();\n let resolution = this.targetResolution_;\n let rotation = this.targetRotation_;\n const series = [];\n for (let i = 0; i < animationCount; ++i) {\n const options = /** @type {AnimationOptions} */ (arguments[i]);\n\n const animation = {\n start: start,\n complete: false,\n anchor: options.anchor,\n duration: options.duration !== undefined ? options.duration : 1000,\n easing: options.easing || inAndOut,\n callback: callback,\n };\n\n if (options.center) {\n animation.sourceCenter = center;\n animation.targetCenter = options.center.slice();\n center = animation.targetCenter;\n }\n\n if (options.zoom !== undefined) {\n animation.sourceResolution = resolution;\n animation.targetResolution = this.getResolutionForZoom(options.zoom);\n resolution = animation.targetResolution;\n } else if (options.resolution) {\n animation.sourceResolution = resolution;\n animation.targetResolution = options.resolution;\n resolution = animation.targetResolution;\n }\n\n if (options.rotation !== undefined) {\n animation.sourceRotation = rotation;\n const delta =\n modulo(options.rotation - rotation + Math.PI, 2 * Math.PI) - Math.PI;\n animation.targetRotation = rotation + delta;\n rotation = animation.targetRotation;\n }\n\n // check if animation is a no-op\n if (isNoopAnimation(animation)) {\n animation.complete = true;\n // we still push it onto the series for callback handling\n } else {\n start += animation.duration;\n }\n series.push(animation);\n }\n this.animations_.push(series);\n this.setHint(ViewHint.ANIMATING, 1);\n this.updateAnimations_();\n }\n\n /**\n * Determine if the view is being animated.\n * @return {boolean} The view is being animated.\n * @api\n */\n getAnimating() {\n return this.hints_[ViewHint.ANIMATING] > 0;\n }\n\n /**\n * Determine if the user is interacting with the view, such as panning or zooming.\n * @return {boolean} The view is being interacted with.\n * @api\n */\n getInteracting() {\n return this.hints_[ViewHint.INTERACTING] > 0;\n }\n\n /**\n * Cancel any ongoing animations.\n * @api\n */\n cancelAnimations() {\n this.setHint(ViewHint.ANIMATING, -this.hints_[ViewHint.ANIMATING]);\n let anchor;\n for (let i = 0, ii = this.animations_.length; i < ii; ++i) {\n const series = this.animations_[i];\n if (series[0].callback) {\n animationCallback(series[0].callback, false);\n }\n if (!anchor) {\n for (let j = 0, jj = series.length; j < jj; ++j) {\n const animation = series[j];\n if (!animation.complete) {\n anchor = animation.anchor;\n break;\n }\n }\n }\n }\n this.animations_.length = 0;\n this.cancelAnchor_ = anchor;\n }\n\n /**\n * Update all animations.\n */\n updateAnimations_() {\n if (this.updateAnimationKey_ !== undefined) {\n cancelAnimationFrame(this.updateAnimationKey_);\n this.updateAnimationKey_ = undefined;\n }\n if (!this.getAnimating()) {\n return;\n }\n const now = Date.now();\n let more = false;\n for (let i = this.animations_.length - 1; i >= 0; --i) {\n const series = this.animations_[i];\n let seriesComplete = true;\n for (let j = 0, jj = series.length; j < jj; ++j) {\n const animation = series[j];\n if (animation.complete) {\n continue;\n }\n const elapsed = now - animation.start;\n let fraction =\n animation.duration > 0 ? elapsed / animation.duration : 1;\n if (fraction >= 1) {\n animation.complete = true;\n fraction = 1;\n } else {\n seriesComplete = false;\n }\n const progress = animation.easing(fraction);\n if (animation.sourceCenter) {\n const x0 = animation.sourceCenter[0];\n const y0 = animation.sourceCenter[1];\n const x1 = animation.targetCenter[0];\n const y1 = animation.targetCenter[1];\n const x = x0 + progress * (x1 - x0);\n const y = y0 + progress * (y1 - y0);\n this.targetCenter_ = [x, y];\n }\n if (animation.sourceResolution && animation.targetResolution) {\n const resolution =\n progress === 1\n ? animation.targetResolution\n : animation.sourceResolution +\n progress *\n (animation.targetResolution - animation.sourceResolution);\n if (animation.anchor) {\n const size = this.getViewportSize_(this.getRotation());\n const constrainedResolution = this.constraints_.resolution(\n resolution,\n 0,\n size,\n true\n );\n this.targetCenter_ = this.calculateCenterZoom(\n constrainedResolution,\n animation.anchor\n );\n }\n this.targetResolution_ = resolution;\n this.applyTargetState_(true);\n }\n if (\n animation.sourceRotation !== undefined &&\n animation.targetRotation !== undefined\n ) {\n const rotation =\n progress === 1\n ? modulo(animation.targetRotation + Math.PI, 2 * Math.PI) -\n Math.PI\n : animation.sourceRotation +\n progress *\n (animation.targetRotation - animation.sourceRotation);\n if (animation.anchor) {\n const constrainedRotation = this.constraints_.rotation(\n rotation,\n true\n );\n this.targetCenter_ = this.calculateCenterRotate(\n constrainedRotation,\n animation.anchor\n );\n }\n this.targetRotation_ = rotation;\n }\n this.applyTargetState_(true);\n more = true;\n if (!animation.complete) {\n break;\n }\n }\n if (seriesComplete) {\n this.animations_[i] = null;\n this.setHint(ViewHint.ANIMATING, -1);\n const callback = series[0].callback;\n if (callback) {\n animationCallback(callback, true);\n }\n }\n }\n // prune completed series\n this.animations_ = this.animations_.filter(Boolean);\n if (more && this.updateAnimationKey_ === undefined) {\n this.updateAnimationKey_ = requestAnimationFrame(\n this.updateAnimations_.bind(this)\n );\n }\n }\n\n /**\n * @param {number} rotation Target rotation.\n * @param {import(\"./coordinate.js\").Coordinate} anchor Rotation anchor.\n * @return {import(\"./coordinate.js\").Coordinate|undefined} Center for rotation and anchor.\n */\n calculateCenterRotate(rotation, anchor) {\n let center;\n const currentCenter = this.getCenterInternal();\n if (currentCenter !== undefined) {\n center = [currentCenter[0] - anchor[0], currentCenter[1] - anchor[1]];\n rotateCoordinate(center, rotation - this.getRotation());\n addCoordinate(center, anchor);\n }\n return center;\n }\n\n /**\n * @param {number} resolution Target resolution.\n * @param {import(\"./coordinate.js\").Coordinate} anchor Zoom anchor.\n * @return {import(\"./coordinate.js\").Coordinate|undefined} Center for resolution and anchor.\n */\n calculateCenterZoom(resolution, anchor) {\n let center;\n const currentCenter = this.getCenterInternal();\n const currentResolution = this.getResolution();\n if (currentCenter !== undefined && currentResolution !== undefined) {\n const x =\n anchor[0] -\n (resolution * (anchor[0] - currentCenter[0])) / currentResolution;\n const y =\n anchor[1] -\n (resolution * (anchor[1] - currentCenter[1])) / currentResolution;\n center = [x, y];\n }\n return center;\n }\n\n /**\n * Returns the current viewport size.\n * @private\n * @param {number=} opt_rotation Take into account the rotation of the viewport when giving the size\n * @return {import(\"./size.js\").Size} Viewport size or `[100, 100]` when no viewport is found.\n */\n getViewportSize_(opt_rotation) {\n const size = this.viewportSize_;\n if (opt_rotation) {\n const w = size[0];\n const h = size[1];\n return [\n Math.abs(w * Math.cos(opt_rotation)) +\n Math.abs(h * Math.sin(opt_rotation)),\n Math.abs(w * Math.sin(opt_rotation)) +\n Math.abs(h * Math.cos(opt_rotation)),\n ];\n } else {\n return size;\n }\n }\n\n /**\n * Stores the viewport size on the view. The viewport size is not read every time from the DOM\n * to avoid performance hit and layout reflow.\n * This should be done on map size change.\n * Note: the constraints are not resolved during an animation to avoid stopping it\n * @param {import(\"./size.js\").Size=} opt_size Viewport size; if undefined, [100, 100] is assumed\n */\n setViewportSize(opt_size) {\n this.viewportSize_ = Array.isArray(opt_size)\n ? opt_size.slice()\n : [100, 100];\n if (!this.getAnimating()) {\n this.resolveConstraints(0);\n }\n }\n\n /**\n * Get the view center.\n * @return {import(\"./coordinate.js\").Coordinate|undefined} The center of the view.\n * @observable\n * @api\n */\n getCenter() {\n const center = this.getCenterInternal();\n if (!center) {\n return center;\n }\n return toUserCoordinate(center, this.getProjection());\n }\n\n /**\n * Get the view center without transforming to user projection.\n * @return {import(\"./coordinate.js\").Coordinate|undefined} The center of the view.\n */\n getCenterInternal() {\n return /** @type {import(\"./coordinate.js\").Coordinate|undefined} */ (this.get(\n ViewProperty.CENTER\n ));\n }\n\n /**\n * @return {Constraints} Constraints.\n */\n getConstraints() {\n return this.constraints_;\n }\n\n /**\n * @return {boolean} Resolution constraint is set\n */\n getConstrainResolution() {\n return this.options_.constrainResolution;\n }\n\n /**\n * @param {Array<number>=} opt_hints Destination array.\n * @return {Array<number>} Hint.\n */\n getHints(opt_hints) {\n if (opt_hints !== undefined) {\n opt_hints[0] = this.hints_[0];\n opt_hints[1] = this.hints_[1];\n return opt_hints;\n } else {\n return this.hints_.slice();\n }\n }\n\n /**\n * Calculate the extent for the current view state and the passed size.\n * The size is the pixel dimensions of the box into which the calculated extent\n * should fit. In most cases you want to get the extent of the entire map,\n * that is `map.getSize()`.\n * @param {import(\"./size.js\").Size=} opt_size Box pixel size. If not provided, the size\n * of the map that uses this view will be used.\n * @return {import(\"./extent.js\").Extent} Extent.\n * @api\n */\n calculateExtent(opt_size) {\n const extent = this.calculateExtentInternal(opt_size);\n return toUserExtent(extent, this.getProjection());\n }\n\n /**\n * @param {import(\"./size.js\").Size=} opt_size Box pixel size. If not provided, the size of the\n * first map that uses this view will be used.\n * @return {import(\"./extent.js\").Extent} Extent.\n */\n calculateExtentInternal(opt_size) {\n const size = opt_size || this.getViewportSize_();\n const center = /** @type {!import(\"./coordinate.js\").Coordinate} */ (this.getCenterInternal());\n assert(center, 1); // The view center is not defined\n const resolution = /** @type {!number} */ (this.getResolution());\n assert(resolution !== undefined, 2); // The view resolution is not defined\n const rotation = /** @type {!number} */ (this.getRotation());\n assert(rotation !== undefined, 3); // The view rotation is not defined\n\n return getForViewAndSize(center, resolution, rotation, size);\n }\n\n /**\n * Get the maximum resolution of the view.\n * @return {number} The maximum resolution of the view.\n * @api\n */\n getMaxResolution() {\n return this.maxResolution_;\n }\n\n /**\n * Get the minimum resolution of the view.\n * @return {number} The minimum resolution of the view.\n * @api\n */\n getMinResolution() {\n return this.minResolution_;\n }\n\n /**\n * Get the maximum zoom level for the view.\n * @return {number} The maximum zoom level.\n * @api\n */\n getMaxZoom() {\n return /** @type {number} */ (this.getZoomForResolution(\n this.minResolution_\n ));\n }\n\n /**\n * Set a new maximum zoom level for the view.\n * @param {number} zoom The maximum zoom level.\n * @api\n */\n setMaxZoom(zoom) {\n this.applyOptions_(this.getUpdatedOptions_({maxZoom: zoom}));\n }\n\n /**\n * Get the minimum zoom level for the view.\n * @return {number} The minimum zoom level.\n * @api\n */\n getMinZoom() {\n return /** @type {number} */ (this.getZoomForResolution(\n this.maxResolution_\n ));\n }\n\n /**\n * Set a new minimum zoom level for the view.\n * @param {number} zoom The minimum zoom level.\n * @api\n */\n setMinZoom(zoom) {\n this.applyOptions_(this.getUpdatedOptions_({minZoom: zoom}));\n }\n\n /**\n * Set whether the view shoud allow intermediary zoom levels.\n * @param {boolean} enabled Whether the resolution is constrained.\n * @api\n */\n setConstrainResolution(enabled) {\n this.applyOptions_(this.getUpdatedOptions_({constrainResolution: enabled}));\n }\n\n /**\n * Get the view projection.\n * @return {import(\"./proj/Projection.js\").default} The projection of the view.\n * @api\n */\n getProjection() {\n return this.projection_;\n }\n\n /**\n * Get the view resolution.\n * @return {number|undefined} The resolution of the view.\n * @observable\n * @api\n */\n getResolution() {\n return /** @type {number|undefined} */ (this.get(ViewProperty.RESOLUTION));\n }\n\n /**\n * Get the resolutions for the view. This returns the array of resolutions\n * passed to the constructor of the View, or undefined if none were given.\n * @return {Array<number>|undefined} The resolutions of the view.\n * @api\n */\n getResolutions() {\n return this.resolutions_;\n }\n\n /**\n * Get the resolution for a provided extent (in map units) and size (in pixels).\n * @param {import(\"./extent.js\").Extent} extent Extent.\n * @param {import(\"./size.js\").Size=} opt_size Box pixel size.\n * @return {number} The resolution at which the provided extent will render at\n * the given size.\n * @api\n */\n getResolutionForExtent(extent, opt_size) {\n return this.getResolutionForExtentInternal(\n fromUserExtent(extent, this.getProjection()),\n opt_size\n );\n }\n\n /**\n * Get the resolution for a provided extent (in map units) and size (in pixels).\n * @param {import(\"./extent.js\").Extent} extent Extent.\n * @param {import(\"./size.js\").Size=} opt_size Box pixel size.\n * @return {number} The resolution at which the provided extent will render at\n * the given size.\n */\n getResolutionForExtentInternal(extent, opt_size) {\n const size = opt_size || this.getViewportSize_();\n const xResolution = getWidth(extent) / size[0];\n const yResolution = getHeight(extent) / size[1];\n return Math.max(xResolution, yResolution);\n }\n\n /**\n * Return a function that returns a value between 0 and 1 for a\n * resolution. Exponential scaling is assumed.\n * @param {number=} opt_power Power.\n * @return {function(number): number} Resolution for value function.\n */\n getResolutionForValueFunction(opt_power) {\n const power = opt_power || 2;\n const maxResolution = this.getConstrainedResolution(this.maxResolution_);\n const minResolution = this.minResolution_;\n const max = Math.log(maxResolution / minResolution) / Math.log(power);\n return (\n /**\n * @param {number} value Value.\n * @return {number} Resolution.\n */\n function (value) {\n const resolution = maxResolution / Math.pow(power, value * max);\n return resolution;\n }\n );\n }\n\n /**\n * Get the view rotation.\n * @return {number} The rotation of the view in radians.\n * @observable\n * @api\n */\n getRotation() {\n return /** @type {number} */ (this.get(ViewProperty.ROTATION));\n }\n\n /**\n * Return a function that returns a resolution for a value between\n * 0 and 1. Exponential scaling is assumed.\n * @param {number=} opt_power Power.\n * @return {function(number): number} Value for resolution function.\n */\n getValueForResolutionFunction(opt_power) {\n const logPower = Math.log(opt_power || 2);\n const maxResolution = this.getConstrainedResolution(this.maxResolution_);\n const minResolution = this.minResolution_;\n const max = Math.log(maxResolution / minResolution) / logPower;\n return (\n /**\n * @param {number} resolution Resolution.\n * @return {number} Value.\n */\n function (resolution) {\n const value = Math.log(maxResolution / resolution) / logPower / max;\n return value;\n }\n );\n }\n\n /**\n * @return {State} View state.\n */\n getState() {\n const center = /** @type {import(\"./coordinate.js\").Coordinate} */ (this.getCenterInternal());\n const projection = this.getProjection();\n const resolution = /** @type {number} */ (this.getResolution());\n const rotation = this.getRotation();\n return {\n center: center.slice(0),\n projection: projection !== undefined ? projection : null,\n resolution: resolution,\n rotation: rotation,\n zoom: this.getZoom(),\n };\n }\n\n /**\n * Get the current zoom level. This method may return non-integer zoom levels\n * if the view does not constrain the resolution, or if an interaction or\n * animation is underway.\n * @return {number|undefined} Zoom.\n * @api\n */\n getZoom() {\n let zoom;\n const resolution = this.getResolution();\n if (resolution !== undefined) {\n zoom = this.getZoomForResolution(resolution);\n }\n return zoom;\n }\n\n /**\n * Get the zoom level for a resolution.\n * @param {number} resolution The resolution.\n * @return {number|undefined} The zoom level for the provided resolution.\n * @api\n */\n getZoomForResolution(resolution) {\n let offset = this.minZoom_ || 0;\n let max, zoomFactor;\n if (this.resolutions_) {\n const nearest = linearFindNearest(this.resolutions_, resolution, 1);\n offset = nearest;\n max = this.resolutions_[nearest];\n if (nearest == this.resolutions_.length - 1) {\n zoomFactor = 2;\n } else {\n zoomFactor = max / this.resolutions_[nearest + 1];\n }\n } else {\n max = this.maxResolution_;\n zoomFactor = this.zoomFactor_;\n }\n return offset + Math.log(max / resolution) / Math.log(zoomFactor);\n }\n\n /**\n * Get the resolution for a zoom level.\n * @param {number} zoom Zoom level.\n * @return {number} The view resolution for the provided zoom level.\n * @api\n */\n getResolutionForZoom(zoom) {\n if (this.resolutions_) {\n if (this.resolutions_.length <= 1) {\n return 0;\n }\n const baseLevel = clamp(\n Math.floor(zoom),\n 0,\n this.resolutions_.length - 2\n );\n const zoomFactor =\n this.resolutions_[baseLevel] / this.resolutions_[baseLevel + 1];\n return (\n this.resolutions_[baseLevel] /\n Math.pow(zoomFactor, clamp(zoom - baseLevel, 0, 1))\n );\n } else {\n return (\n this.maxResolution_ / Math.pow(this.zoomFactor_, zoom - this.minZoom_)\n );\n }\n }\n\n /**\n * Fit the given geometry or extent based on the given map size and border.\n * The size is pixel dimensions of the box to fit the extent into.\n * In most cases you will want to use the map size, that is `map.getSize()`.\n * Takes care of the map angle.\n * @param {import(\"./geom/SimpleGeometry.js\").default|import(\"./extent.js\").Extent} geometryOrExtent The geometry or\n * extent to fit the view to.\n * @param {FitOptions=} opt_options Options.\n * @api\n */\n fit(geometryOrExtent, opt_options) {\n const options = assign({size: this.getViewportSize_()}, opt_options || {});\n\n /** @type {import(\"./geom/SimpleGeometry.js\").default} */\n let geometry;\n assert(\n Array.isArray(geometryOrExtent) ||\n typeof (/** @type {?} */ (geometryOrExtent).getSimplifiedGeometry) ===\n 'function',\n 24\n ); // Invalid extent or geometry provided as `geometry`\n if (Array.isArray(geometryOrExtent)) {\n assert(!isEmpty(geometryOrExtent), 25); // Cannot fit empty extent provided as `geometry`\n const extent = fromUserExtent(geometryOrExtent, this.getProjection());\n geometry = polygonFromExtent(extent);\n } else if (geometryOrExtent.getType() === GeometryType.CIRCLE) {\n const extent = fromUserExtent(\n geometryOrExtent.getExtent(),\n this.getProjection()\n );\n geometry = polygonFromExtent(extent);\n geometry.rotate(this.getRotation(), getCenter(extent));\n } else {\n const userProjection = getUserProjection();\n if (userProjection) {\n geometry = /** @type {import(\"./geom/SimpleGeometry.js\").default} */ (geometryOrExtent\n .clone()\n .transform(userProjection, this.getProjection()));\n } else {\n geometry = geometryOrExtent;\n }\n }\n\n this.fitInternal(geometry, options);\n }\n\n /**\n * @param {import(\"./geom/SimpleGeometry.js\").default} geometry The geometry.\n * @param {FitOptions=} opt_options Options.\n */\n fitInternal(geometry, opt_options) {\n const options = opt_options || {};\n let size = options.size;\n if (!size) {\n size = this.getViewportSize_();\n }\n const padding =\n options.padding !== undefined ? options.padding : [0, 0, 0, 0];\n const nearest = options.nearest !== undefined ? options.nearest : false;\n let minResolution;\n if (options.minResolution !== undefined) {\n minResolution = options.minResolution;\n } else if (options.maxZoom !== undefined) {\n minResolution = this.getResolutionForZoom(options.maxZoom);\n } else {\n minResolution = 0;\n }\n const coords = geometry.getFlatCoordinates();\n\n // calculate rotated extent\n const rotation = this.getRotation();\n const cosAngle = Math.cos(-rotation);\n let sinAngle = Math.sin(-rotation);\n let minRotX = +Infinity;\n let minRotY = +Infinity;\n let maxRotX = -Infinity;\n let maxRotY = -Infinity;\n const stride = geometry.getStride();\n for (let i = 0, ii = coords.length; i < ii; i += stride) {\n const rotX = coords[i] * cosAngle - coords[i + 1] * sinAngle;\n const rotY = coords[i] * sinAngle + coords[i + 1] * cosAngle;\n minRotX = Math.min(minRotX, rotX);\n minRotY = Math.min(minRotY, rotY);\n maxRotX = Math.max(maxRotX, rotX);\n maxRotY = Math.max(maxRotY, rotY);\n }\n\n // calculate resolution\n let resolution = this.getResolutionForExtentInternal(\n [minRotX, minRotY, maxRotX, maxRotY],\n [size[0] - padding[1] - padding[3], size[1] - padding[0] - padding[2]]\n );\n resolution = isNaN(resolution)\n ? minResolution\n : Math.max(resolution, minResolution);\n resolution = this.getConstrainedResolution(resolution, nearest ? 0 : 1);\n\n // calculate center\n sinAngle = -sinAngle; // go back to original rotation\n let centerRotX = (minRotX + maxRotX) / 2;\n let centerRotY = (minRotY + maxRotY) / 2;\n centerRotX += ((padding[1] - padding[3]) / 2) * resolution;\n centerRotY += ((padding[0] - padding[2]) / 2) * resolution;\n const centerX = centerRotX * cosAngle - centerRotY * sinAngle;\n const centerY = centerRotY * cosAngle + centerRotX * sinAngle;\n const center = [centerX, centerY];\n const callback = options.callback ? options.callback : VOID;\n\n if (options.duration !== undefined) {\n this.animateInternal(\n {\n resolution: resolution,\n center: this.getConstrainedCenter(center, resolution),\n duration: options.duration,\n easing: options.easing,\n },\n callback\n );\n } else {\n this.targetResolution_ = resolution;\n this.targetCenter_ = center;\n this.applyTargetState_(false, true);\n animationCallback(callback, true);\n }\n }\n\n /**\n * Center on coordinate and view position.\n * @param {import(\"./coordinate.js\").Coordinate} coordinate Coordinate.\n * @param {import(\"./size.js\").Size} size Box pixel size.\n * @param {import(\"./pixel.js\").Pixel} position Position on the view to center on.\n * @api\n */\n centerOn(coordinate, size, position) {\n this.centerOnInternal(\n fromUserCoordinate(coordinate, this.getProjection()),\n size,\n position\n );\n }\n\n /**\n * @param {import(\"./coordinate.js\").Coordinate} coordinate Coordinate.\n * @param {import(\"./size.js\").Size} size Box pixel size.\n * @param {import(\"./pixel.js\").Pixel} position Position on the view to center on.\n */\n centerOnInternal(coordinate, size, position) {\n // calculate rotated position\n const rotation = this.getRotation();\n const cosAngle = Math.cos(-rotation);\n let sinAngle = Math.sin(-rotation);\n let rotX = coordinate[0] * cosAngle - coordinate[1] * sinAngle;\n let rotY = coordinate[1] * cosAngle + coordinate[0] * sinAngle;\n const resolution = this.getResolution();\n rotX += (size[0] / 2 - position[0]) * resolution;\n rotY += (position[1] - size[1] / 2) * resolution;\n\n // go back to original angle\n sinAngle = -sinAngle; // go back to original rotation\n const centerX = rotX * cosAngle - rotY * sinAngle;\n const centerY = rotY * cosAngle + rotX * sinAngle;\n\n this.setCenterInternal([centerX, centerY]);\n }\n\n /**\n * @return {boolean} Is defined.\n */\n isDef() {\n return !!this.getCenterInternal() && this.getResolution() !== undefined;\n }\n\n /**\n * Adds relative coordinates to the center of the view. Any extent constraint will apply.\n * @param {import(\"./coordinate.js\").Coordinate} deltaCoordinates Relative value to add.\n * @api\n */\n adjustCenter(deltaCoordinates) {\n const center = toUserCoordinate(this.targetCenter_, this.getProjection());\n this.setCenter([\n center[0] + deltaCoordinates[0],\n center[1] + deltaCoordinates[1],\n ]);\n }\n\n /**\n * Adds relative coordinates to the center of the view. Any extent constraint will apply.\n * @param {import(\"./coordinate.js\").Coordinate} deltaCoordinates Relative value to add.\n */\n adjustCenterInternal(deltaCoordinates) {\n const center = this.targetCenter_;\n this.setCenterInternal([\n center[0] + deltaCoordinates[0],\n center[1] + deltaCoordinates[1],\n ]);\n }\n\n /**\n * Multiply the view resolution by a ratio, optionally using an anchor. Any resolution\n * constraint will apply.\n * @param {number} ratio The ratio to apply on the view resolution.\n * @param {import(\"./coordinate.js\").Coordinate=} opt_anchor The origin of the transformation.\n * @api\n */\n adjustResolution(ratio, opt_anchor) {\n const anchor =\n opt_anchor && fromUserCoordinate(opt_anchor, this.getProjection());\n this.adjustResolutionInternal(ratio, anchor);\n }\n\n /**\n * Multiply the view resolution by a ratio, optionally using an anchor. Any resolution\n * constraint will apply.\n * @param {number} ratio The ratio to apply on the view resolution.\n * @param {import(\"./coordinate.js\").Coordinate=} opt_anchor The origin of the transformation.\n */\n adjustResolutionInternal(ratio, opt_anchor) {\n const isMoving = this.getAnimating() || this.getInteracting();\n const size = this.getViewportSize_(this.getRotation());\n const newResolution = this.constraints_.resolution(\n this.targetResolution_ * ratio,\n 0,\n size,\n isMoving\n );\n\n if (opt_anchor) {\n this.targetCenter_ = this.calculateCenterZoom(newResolution, opt_anchor);\n }\n\n this.targetResolution_ *= ratio;\n this.applyTargetState_();\n }\n\n /**\n * Adds a value to the view zoom level, optionally using an anchor. Any resolution\n * constraint will apply.\n * @param {number} delta Relative value to add to the zoom level.\n * @param {import(\"./coordinate.js\").Coordinate=} opt_anchor The origin of the transformation.\n * @api\n */\n adjustZoom(delta, opt_anchor) {\n this.adjustResolution(Math.pow(this.zoomFactor_, -delta), opt_anchor);\n }\n\n /**\n * Adds a value to the view rotation, optionally using an anchor. Any rotation\n * constraint will apply.\n * @param {number} delta Relative value to add to the zoom rotation, in radians.\n * @param {import(\"./coordinate.js\").Coordinate=} opt_anchor The rotation center.\n * @api\n */\n adjustRotation(delta, opt_anchor) {\n if (opt_anchor) {\n opt_anchor = fromUserCoordinate(opt_anchor, this.getProjection());\n }\n this.adjustRotationInternal(delta, opt_anchor);\n }\n\n /**\n * @param {number} delta Relative value to add to the zoom rotation, in radians.\n * @param {import(\"./coordinate.js\").Coordinate=} opt_anchor The rotation center.\n */\n adjustRotationInternal(delta, opt_anchor) {\n const isMoving = this.getAnimating() || this.getInteracting();\n const newRotation = this.constraints_.rotation(\n this.targetRotation_ + delta,\n isMoving\n );\n if (opt_anchor) {\n this.targetCenter_ = this.calculateCenterRotate(newRotation, opt_anchor);\n }\n this.targetRotation_ += delta;\n this.applyTargetState_();\n }\n\n /**\n * Set the center of the current view. Any extent constraint will apply.\n * @param {import(\"./coordinate.js\").Coordinate|undefined} center The center of the view.\n * @observable\n * @api\n */\n setCenter(center) {\n this.setCenterInternal(fromUserCoordinate(center, this.getProjection()));\n }\n\n /**\n * Set the center using the view projection (not the user projection).\n * @param {import(\"./coordinate.js\").Coordinate|undefined} center The center of the view.\n */\n setCenterInternal(center) {\n this.targetCenter_ = center;\n this.applyTargetState_();\n }\n\n /**\n * @param {import(\"./ViewHint.js\").default} hint Hint.\n * @param {number} delta Delta.\n * @return {number} New value.\n */\n setHint(hint, delta) {\n this.hints_[hint] += delta;\n this.changed();\n return this.hints_[hint];\n }\n\n /**\n * Set the resolution for this view. Any resolution constraint will apply.\n * @param {number|undefined} resolution The resolution of the view.\n * @observable\n * @api\n */\n setResolution(resolution) {\n this.targetResolution_ = resolution;\n this.applyTargetState_();\n }\n\n /**\n * Set the rotation for this view. Any rotation constraint will apply.\n * @param {number} rotation The rotation of the view in radians.\n * @observable\n * @api\n */\n setRotation(rotation) {\n this.targetRotation_ = rotation;\n this.applyTargetState_();\n }\n\n /**\n * Zoom to a specific zoom level. Any resolution constrain will apply.\n * @param {number} zoom Zoom level.\n * @api\n */\n setZoom(zoom) {\n this.setResolution(this.getResolutionForZoom(zoom));\n }\n\n /**\n * Recompute rotation/resolution/center based on target values.\n * Note: we have to compute rotation first, then resolution and center considering that\n * parameters can influence one another in case a view extent constraint is present.\n * @param {boolean=} opt_doNotCancelAnims Do not cancel animations.\n * @param {boolean=} opt_forceMoving Apply constraints as if the view is moving.\n * @private\n */\n applyTargetState_(opt_doNotCancelAnims, opt_forceMoving) {\n const isMoving =\n this.getAnimating() || this.getInteracting() || opt_forceMoving;\n\n // compute rotation\n const newRotation = this.constraints_.rotation(\n this.targetRotation_,\n isMoving\n );\n const size = this.getViewportSize_(newRotation);\n const newResolution = this.constraints_.resolution(\n this.targetResolution_,\n 0,\n size,\n isMoving\n );\n const newCenter = this.constraints_.center(\n this.targetCenter_,\n newResolution,\n size,\n isMoving\n );\n\n if (this.get(ViewProperty.ROTATION) !== newRotation) {\n this.set(ViewProperty.ROTATION, newRotation);\n }\n if (this.get(ViewProperty.RESOLUTION) !== newResolution) {\n this.set(ViewProperty.RESOLUTION, newResolution);\n }\n if (\n !this.get(ViewProperty.CENTER) ||\n !equals(this.get(ViewProperty.CENTER), newCenter)\n ) {\n this.set(ViewProperty.CENTER, newCenter);\n }\n\n if (this.getAnimating() && !opt_doNotCancelAnims) {\n this.cancelAnimations();\n }\n this.cancelAnchor_ = undefined;\n }\n\n /**\n * If any constraints need to be applied, an animation will be triggered.\n * This is typically done on interaction end.\n * Note: calling this with a duration of 0 will apply the constrained values straight away,\n * without animation.\n * @param {number=} opt_duration The animation duration in ms.\n * @param {number=} opt_resolutionDirection Which direction to zoom.\n * @param {import(\"./coordinate.js\").Coordinate=} opt_anchor The origin of the transformation.\n */\n resolveConstraints(opt_duration, opt_resolutionDirection, opt_anchor) {\n const duration = opt_duration !== undefined ? opt_duration : 200;\n const direction = opt_resolutionDirection || 0;\n\n const newRotation = this.constraints_.rotation(this.targetRotation_);\n const size = this.getViewportSize_(newRotation);\n const newResolution = this.constraints_.resolution(\n this.targetResolution_,\n direction,\n size\n );\n const newCenter = this.constraints_.center(\n this.targetCenter_,\n newResolution,\n size\n );\n\n if (duration === 0 && !this.cancelAnchor_) {\n this.targetResolution_ = newResolution;\n this.targetRotation_ = newRotation;\n this.targetCenter_ = newCenter;\n this.applyTargetState_();\n return;\n }\n\n const anchor =\n opt_anchor || (duration === 0 ? this.cancelAnchor_ : undefined);\n this.cancelAnchor_ = undefined;\n\n if (\n this.getResolution() !== newResolution ||\n this.getRotation() !== newRotation ||\n !this.getCenterInternal() ||\n !equals(this.getCenterInternal(), newCenter)\n ) {\n if (this.getAnimating()) {\n this.cancelAnimations();\n }\n\n this.animateInternal({\n rotation: newRotation,\n center: newCenter,\n resolution: newResolution,\n duration: duration,\n easing: easeOut,\n anchor: anchor,\n });\n }\n }\n\n /**\n * Notify the View that an interaction has started.\n * The view state will be resolved to a stable one if needed\n * (depending on its constraints).\n * @api\n */\n beginInteraction() {\n this.resolveConstraints(0);\n\n this.setHint(ViewHint.INTERACTING, 1);\n }\n\n /**\n * Notify the View that an interaction has ended. The view state will be resolved\n * to a stable one if needed (depending on its constraints).\n * @param {number=} opt_duration Animation duration in ms.\n * @param {number=} opt_resolutionDirection Which direction to zoom.\n * @param {import(\"./coordinate.js\").Coordinate=} opt_anchor The origin of the transformation.\n * @api\n */\n endInteraction(opt_duration, opt_resolutionDirection, opt_anchor) {\n const anchor =\n opt_anchor && fromUserCoordinate(opt_anchor, this.getProjection());\n this.endInteractionInternal(opt_duration, opt_resolutionDirection, anchor);\n }\n\n /**\n * Notify the View that an interaction has ended. The view state will be resolved\n * to a stable one if needed (depending on its constraints).\n * @param {number=} opt_duration Animation duration in ms.\n * @param {number=} opt_resolutionDirection Which direction to zoom.\n * @param {import(\"./coordinate.js\").Coordinate=} opt_anchor The origin of the transformation.\n */\n endInteractionInternal(opt_duration, opt_resolutionDirection, opt_anchor) {\n this.setHint(ViewHint.INTERACTING, -1);\n\n this.resolveConstraints(opt_duration, opt_resolutionDirection, opt_anchor);\n }\n\n /**\n * Get a valid position for the view center according to the current constraints.\n * @param {import(\"./coordinate.js\").Coordinate|undefined} targetCenter Target center position.\n * @param {number=} opt_targetResolution Target resolution. If not supplied, the current one will be used.\n * This is useful to guess a valid center position at a different zoom level.\n * @return {import(\"./coordinate.js\").Coordinate|undefined} Valid center position.\n */\n getConstrainedCenter(targetCenter, opt_targetResolution) {\n const size = this.getViewportSize_(this.getRotation());\n return this.constraints_.center(\n targetCenter,\n opt_targetResolution || this.getResolution(),\n size\n );\n }\n\n /**\n * Get a valid zoom level according to the current view constraints.\n * @param {number|undefined} targetZoom Target zoom.\n * @param {number=} [opt_direction=0] Indicate which resolution should be used\n * by a renderer if the view resolution does not match any resolution of the tile source.\n * If 0, the nearest resolution will be used. If 1, the nearest lower resolution\n * will be used. If -1, the nearest higher resolution will be used.\n * @return {number|undefined} Valid zoom level.\n */\n getConstrainedZoom(targetZoom, opt_direction) {\n const targetRes = this.getResolutionForZoom(targetZoom);\n return this.getZoomForResolution(\n this.getConstrainedResolution(targetRes, opt_direction)\n );\n }\n\n /**\n * Get a valid resolution according to the current view constraints.\n * @param {number|undefined} targetResolution Target resolution.\n * @param {number=} [opt_direction=0] Indicate which resolution should be used\n * by a renderer if the view resolution does not match any resolution of the tile source.\n * If 0, the nearest resolution will be used. If 1, the nearest lower resolution\n * will be used. If -1, the nearest higher resolution will be used.\n * @return {number|undefined} Valid resolution.\n */\n getConstrainedResolution(targetResolution, opt_direction) {\n const direction = opt_direction || 0;\n const size = this.getViewportSize_(this.getRotation());\n\n return this.constraints_.resolution(targetResolution, direction, size);\n }\n}\n\n/**\n * @param {Function} callback Callback.\n * @param {*} returnValue Return value.\n */\nfunction animationCallback(callback, returnValue) {\n setTimeout(function () {\n callback(returnValue);\n }, 0);\n}\n\n/**\n * @param {ViewOptions} options View options.\n * @return {import(\"./centerconstraint.js\").Type} The constraint.\n */\nexport function createCenterConstraint(options) {\n if (options.extent !== undefined) {\n const smooth =\n options.smoothExtentConstraint !== undefined\n ? options.smoothExtentConstraint\n : true;\n return createExtent(options.extent, options.constrainOnlyCenter, smooth);\n }\n\n const projection = createProjection(options.projection, 'EPSG:3857');\n if (options.multiWorld !== true && projection.isGlobal()) {\n const extent = projection.getExtent().slice();\n extent[0] = -Infinity;\n extent[2] = Infinity;\n return createExtent(extent, false, false);\n }\n\n return centerNone;\n}\n\n/**\n * @param {ViewOptions} options View options.\n * @return {{constraint: import(\"./resolutionconstraint.js\").Type, maxResolution: number,\n * minResolution: number, minZoom: number, zoomFactor: number}} The constraint.\n */\nexport function createResolutionConstraint(options) {\n let resolutionConstraint;\n let maxResolution;\n let minResolution;\n\n // TODO: move these to be ol constants\n // see https://github.com/openlayers/openlayers/issues/2076\n const defaultMaxZoom = 28;\n const defaultZoomFactor = 2;\n\n let minZoom =\n options.minZoom !== undefined ? options.minZoom : DEFAULT_MIN_ZOOM;\n\n let maxZoom =\n options.maxZoom !== undefined ? options.maxZoom : defaultMaxZoom;\n\n const zoomFactor =\n options.zoomFactor !== undefined ? options.zoomFactor : defaultZoomFactor;\n\n const multiWorld =\n options.multiWorld !== undefined ? options.multiWorld : false;\n\n const smooth =\n options.smoothResolutionConstraint !== undefined\n ? options.smoothResolutionConstraint\n : true;\n\n const showFullExtent =\n options.showFullExtent !== undefined ? options.showFullExtent : false;\n\n const projection = createProjection(options.projection, 'EPSG:3857');\n const projExtent = projection.getExtent();\n let constrainOnlyCenter = options.constrainOnlyCenter;\n let extent = options.extent;\n if (!multiWorld && !extent && projection.isGlobal()) {\n constrainOnlyCenter = false;\n extent = projExtent;\n }\n\n if (options.resolutions !== undefined) {\n const resolutions = options.resolutions;\n maxResolution = resolutions[minZoom];\n minResolution =\n resolutions[maxZoom] !== undefined\n ? resolutions[maxZoom]\n : resolutions[resolutions.length - 1];\n\n if (options.constrainResolution) {\n resolutionConstraint = createSnapToResolutions(\n resolutions,\n smooth,\n !constrainOnlyCenter && extent,\n showFullExtent\n );\n } else {\n resolutionConstraint = createMinMaxResolution(\n maxResolution,\n minResolution,\n smooth,\n !constrainOnlyCenter && extent,\n showFullExtent\n );\n }\n } else {\n // calculate the default min and max resolution\n const size = !projExtent\n ? // use an extent that can fit the whole world if need be\n (360 * METERS_PER_UNIT[Units.DEGREES]) / projection.getMetersPerUnit()\n : Math.max(getWidth(projExtent), getHeight(projExtent));\n\n const defaultMaxResolution =\n size / DEFAULT_TILE_SIZE / Math.pow(defaultZoomFactor, DEFAULT_MIN_ZOOM);\n\n const defaultMinResolution =\n defaultMaxResolution /\n Math.pow(defaultZoomFactor, defaultMaxZoom - DEFAULT_MIN_ZOOM);\n\n // user provided maxResolution takes precedence\n maxResolution = options.maxResolution;\n if (maxResolution !== undefined) {\n minZoom = 0;\n } else {\n maxResolution = defaultMaxResolution / Math.pow(zoomFactor, minZoom);\n }\n\n // user provided minResolution takes precedence\n minResolution = options.minResolution;\n if (minResolution === undefined) {\n if (options.maxZoom !== undefined) {\n if (options.maxResolution !== undefined) {\n minResolution = maxResolution / Math.pow(zoomFactor, maxZoom);\n } else {\n minResolution = defaultMaxResolution / Math.pow(zoomFactor, maxZoom);\n }\n } else {\n minResolution = defaultMinResolution;\n }\n }\n\n // given discrete zoom levels, minResolution may be different than provided\n maxZoom =\n minZoom +\n Math.floor(\n Math.log(maxResolution / minResolution) / Math.log(zoomFactor)\n );\n minResolution = maxResolution / Math.pow(zoomFactor, maxZoom - minZoom);\n\n if (options.constrainResolution) {\n resolutionConstraint = createSnapToPower(\n zoomFactor,\n maxResolution,\n minResolution,\n smooth,\n !constrainOnlyCenter && extent,\n showFullExtent\n );\n } else {\n resolutionConstraint = createMinMaxResolution(\n maxResolution,\n minResolution,\n smooth,\n !constrainOnlyCenter && extent,\n showFullExtent\n );\n }\n }\n return {\n constraint: resolutionConstraint,\n maxResolution: maxResolution,\n minResolution: minResolution,\n minZoom: minZoom,\n zoomFactor: zoomFactor,\n };\n}\n\n/**\n * @param {ViewOptions} options View options.\n * @return {import(\"./rotationconstraint.js\").Type} Rotation constraint.\n */\nexport function createRotationConstraint(options) {\n const enableRotation =\n options.enableRotation !== undefined ? options.enableRotation : true;\n if (enableRotation) {\n const constrainRotation = options.constrainRotation;\n if (constrainRotation === undefined || constrainRotation === true) {\n return createSnapToZero();\n } else if (constrainRotation === false) {\n return rotationNone;\n } else if (typeof constrainRotation === 'number') {\n return createSnapToN(constrainRotation);\n } else {\n return rotationNone;\n }\n } else {\n return disable;\n }\n}\n\n/**\n * Determine if an animation involves no view change.\n * @param {Animation} animation The animation.\n * @return {boolean} The animation involves no view change.\n */\nexport function isNoopAnimation(animation) {\n if (animation.sourceCenter && animation.targetCenter) {\n if (!coordinatesEqual(animation.sourceCenter, animation.targetCenter)) {\n return false;\n }\n }\n if (animation.sourceResolution !== animation.targetResolution) {\n return false;\n }\n if (animation.sourceRotation !== animation.targetRotation) {\n return false;\n }\n return true;\n}\n\nexport default View;\n","/**\n * @module ol/PluggableMap\n */\nimport BaseObject, {getChangeEventType} from './Object.js';\nimport Collection from './Collection.js';\nimport CollectionEventType from './CollectionEventType.js';\nimport EventType from './events/EventType.js';\nimport LayerGroup from './layer/Group.js';\nimport MapBrowserEvent from './MapBrowserEvent.js';\nimport MapBrowserEventHandler from './MapBrowserEventHandler.js';\nimport MapBrowserEventType from './MapBrowserEventType.js';\nimport MapEvent from './MapEvent.js';\nimport MapEventType from './MapEventType.js';\nimport MapProperty from './MapProperty.js';\nimport ObjectEventType from './ObjectEventType.js';\nimport PointerEventType from './pointer/EventType.js';\nimport RenderEventType from './render/EventType.js';\nimport TileQueue, {getTilePriority} from './TileQueue.js';\nimport View from './View.js';\nimport ViewHint from './ViewHint.js';\nimport {\n DEVICE_PIXEL_RATIO,\n IMAGE_DECODE,\n PASSIVE_EVENT_LISTENERS,\n} from './has.js';\nimport {TRUE} from './functions.js';\nimport {\n apply as applyTransform,\n create as createTransform,\n} from './transform.js';\nimport {assert} from './asserts.js';\nimport {\n clone,\n createOrUpdateEmpty,\n equals,\n getForViewAndSize,\n isEmpty,\n} from './extent.js';\nimport {fromUserCoordinate, toUserCoordinate} from './proj.js';\nimport {hasArea} from './size.js';\nimport {listen, unlistenByKey} from './events.js';\nimport {removeNode} from './dom.js';\n\n/**\n * State of the current frame. Only `pixelRatio`, `time` and `viewState` should\n * be used in applications.\n * @typedef {Object} FrameState\n * @property {number} pixelRatio The pixel ratio of the frame.\n * @property {number} time The time when rendering of the frame was requested.\n * @property {import(\"./View.js\").State} viewState The state of the current view.\n * @property {boolean} animate\n * @property {import(\"./transform.js\").Transform} coordinateToPixelTransform\n * @property {null|import(\"./extent.js\").Extent} extent\n * @property {Array<DeclutterItems>} declutterItems\n * @property {number} index\n * @property {Array<import(\"./layer/Layer.js\").State>} layerStatesArray\n * @property {number} layerIndex\n * @property {import(\"./transform.js\").Transform} pixelToCoordinateTransform\n * @property {Array<PostRenderFunction>} postRenderFunctions\n * @property {import(\"./size.js\").Size} size\n * @property {TileQueue} tileQueue\n * @property {!Object<string, Object<string, boolean>>} usedTiles\n * @property {Array<number>} viewHints\n * @property {!Object<string, Object<string, boolean>>} wantedTiles\n */\n\n/**\n * @typedef {Object} DeclutterItems\n * @property {Array<*>} items Declutter items of an executor.\n * @property {number} opacity Layer opacity.\n */\n\n/**\n * @typedef {function(PluggableMap, ?FrameState): any} PostRenderFunction\n */\n\n/**\n * @typedef {Object} AtPixelOptions\n * @property {undefined|function(import(\"./layer/Layer.js\").default): boolean} [layerFilter] Layer filter\n * function. The filter function will receive one argument, the\n * {@link module:ol/layer/Layer layer-candidate} and it should return a boolean value.\n * Only layers which are visible and for which this function returns `true`\n * will be tested for features. By default, all visible layers will be tested.\n * @property {number} [hitTolerance=0] Hit-detection tolerance in pixels. Pixels\n * inside the radius around the given position will be checked for features.\n * @property {boolean} [checkWrapped=true] Check-Wrapped Will check for for wrapped geometries inside the range of\n * +/- 1 world width. Works only if a projection is used that can be wrapped.\n */\n\n/**\n * @typedef {Object} MapOptionsInternal\n * @property {Collection<import(\"./control/Control.js\").default>} [controls]\n * @property {Collection<import(\"./interaction/Interaction.js\").default>} [interactions]\n * @property {HTMLElement|Document} keyboardEventTarget\n * @property {Collection<import(\"./Overlay.js\").default>} overlays\n * @property {Object<string, *>} values\n */\n\n/**\n * Object literal with config options for the map.\n * @typedef {Object} MapOptions\n * @property {Collection<import(\"./control/Control.js\").default>|Array<import(\"./control/Control.js\").default>} [controls]\n * Controls initially added to the map. If not specified,\n * {@link module:ol/control~defaults} is used.\n * @property {number} [pixelRatio=window.devicePixelRatio] The ratio between\n * physical pixels and device-independent pixels (dips) on the device.\n * @property {Collection<import(\"./interaction/Interaction.js\").default>|Array<import(\"./interaction/Interaction.js\").default>} [interactions]\n * Interactions that are initially added to the map. If not specified,\n * {@link module:ol/interaction~defaults} is used.\n * @property {HTMLElement|Document|string} [keyboardEventTarget] The element to\n * listen to keyboard events on. This determines when the `KeyboardPan` and\n * `KeyboardZoom` interactions trigger. For example, if this option is set to\n * `document` the keyboard interactions will always trigger. If this option is\n * not specified, the element the library listens to keyboard events on is the\n * map target (i.e. the user-provided div for the map). If this is not\n * `document`, the target element needs to be focused for key events to be\n * emitted, requiring that the target element has a `tabindex` attribute.\n * @property {Array<import(\"./layer/Base.js\").default>|Collection<import(\"./layer/Base.js\").default>|LayerGroup} [layers]\n * Layers. If this is not defined, a map with no layers will be rendered. Note\n * that layers are rendered in the order supplied, so if you want, for example,\n * a vector layer to appear on top of a tile layer, it must come after the tile\n * layer.\n * @property {number} [maxTilesLoading=16] Maximum number tiles to load\n * simultaneously.\n * @property {number} [moveTolerance=1] The minimum distance in pixels the\n * cursor must move to be detected as a map move event instead of a click.\n * Increasing this value can make it easier to click on the map.\n * @property {Collection<import(\"./Overlay.js\").default>|Array<import(\"./Overlay.js\").default>} [overlays]\n * Overlays initially added to the map. By default, no overlays are added.\n * @property {HTMLElement|string} [target] The container for the map, either the\n * element itself or the `id` of the element. If not specified at construction\n * time, {@link module:ol/Map~Map#setTarget} must be called for the map to be\n * rendered.\n * @property {View} [view] The map's view. No layer sources will be\n * fetched unless this is specified at construction time or through\n * {@link module:ol/Map~Map#setView}.\n */\n\n/**\n * @fires import(\"./MapBrowserEvent.js\").MapBrowserEvent\n * @fires import(\"./MapEvent.js\").MapEvent\n * @fires import(\"./render/Event.js\").default#precompose\n * @fires import(\"./render/Event.js\").default#postcompose\n * @fires import(\"./render/Event.js\").default#rendercomplete\n * @api\n */\nclass PluggableMap extends BaseObject {\n /**\n * @param {MapOptions} options Map options.\n */\n constructor(options) {\n super();\n\n const optionsInternal = createOptionsInternal(options);\n\n /** @private */\n this.boundHandleBrowserEvent_ = this.handleBrowserEvent.bind(this);\n\n /**\n * @type {number}\n * @private\n */\n this.maxTilesLoading_ =\n options.maxTilesLoading !== undefined ? options.maxTilesLoading : 16;\n\n /**\n * @private\n * @type {number}\n */\n this.pixelRatio_ =\n options.pixelRatio !== undefined\n ? options.pixelRatio\n : DEVICE_PIXEL_RATIO;\n\n /**\n * @private\n * @type {*}\n */\n this.postRenderTimeoutHandle_;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.animationDelayKey_;\n\n /**\n * @private\n */\n this.animationDelay_ = function () {\n this.animationDelayKey_ = undefined;\n this.renderFrame_(Date.now());\n }.bind(this);\n\n /**\n * @private\n * @type {import(\"./transform.js\").Transform}\n */\n this.coordinateToPixelTransform_ = createTransform();\n\n /**\n * @private\n * @type {import(\"./transform.js\").Transform}\n */\n this.pixelToCoordinateTransform_ = createTransform();\n\n /**\n * @private\n * @type {number}\n */\n this.frameIndex_ = 0;\n\n /**\n * @private\n * @type {?FrameState}\n */\n this.frameState_ = null;\n\n /**\n * The extent at the previous 'moveend' event.\n * @private\n * @type {import(\"./extent.js\").Extent}\n */\n this.previousExtent_ = null;\n\n /**\n * @private\n * @type {?import(\"./events.js\").EventsKey}\n */\n this.viewPropertyListenerKey_ = null;\n\n /**\n * @private\n * @type {?import(\"./events.js\").EventsKey}\n */\n this.viewChangeListenerKey_ = null;\n\n /**\n * @private\n * @type {?Array<import(\"./events.js\").EventsKey>}\n */\n this.layerGroupPropertyListenerKeys_ = null;\n\n /**\n * @private\n * @type {!HTMLElement}\n */\n this.viewport_ = document.createElement('div');\n this.viewport_.className =\n 'ol-viewport' + ('ontouchstart' in window ? ' ol-touch' : '');\n this.viewport_.style.position = 'relative';\n this.viewport_.style.overflow = 'hidden';\n this.viewport_.style.width = '100%';\n this.viewport_.style.height = '100%';\n\n /**\n * @private\n * @type {!HTMLElement}\n */\n this.overlayContainer_ = document.createElement('div');\n this.overlayContainer_.style.position = 'absolute';\n this.overlayContainer_.style.zIndex = '0';\n this.overlayContainer_.style.width = '100%';\n this.overlayContainer_.style.height = '100%';\n this.overlayContainer_.style.pointerEvents = 'none';\n this.overlayContainer_.className = 'ol-overlaycontainer';\n this.viewport_.appendChild(this.overlayContainer_);\n\n /**\n * @private\n * @type {!HTMLElement}\n */\n this.overlayContainerStopEvent_ = document.createElement('div');\n this.overlayContainerStopEvent_.style.position = 'absolute';\n this.overlayContainerStopEvent_.style.zIndex = '0';\n this.overlayContainerStopEvent_.style.width = '100%';\n this.overlayContainerStopEvent_.style.height = '100%';\n this.overlayContainerStopEvent_.style.pointerEvents = 'none';\n this.overlayContainerStopEvent_.className = 'ol-overlaycontainer-stopevent';\n this.viewport_.appendChild(this.overlayContainerStopEvent_);\n\n /**\n * @private\n * @type {MapBrowserEventHandler}\n */\n this.mapBrowserEventHandler_ = null;\n\n /**\n * @private\n * @type {number}\n */\n this.moveTolerance_ = options.moveTolerance;\n\n /**\n * @private\n * @type {HTMLElement|Document}\n */\n this.keyboardEventTarget_ = optionsInternal.keyboardEventTarget;\n\n /**\n * @private\n * @type {?Array<import(\"./events.js\").EventsKey>}\n */\n this.keyHandlerKeys_ = null;\n\n /**\n * @type {Collection<import(\"./control/Control.js\").default>}\n * @protected\n */\n this.controls = optionsInternal.controls || new Collection();\n\n /**\n * @type {Collection<import(\"./interaction/Interaction.js\").default>}\n * @protected\n */\n this.interactions = optionsInternal.interactions || new Collection();\n\n /**\n * @type {Collection<import(\"./Overlay.js\").default>}\n * @private\n */\n this.overlays_ = optionsInternal.overlays;\n\n /**\n * A lookup of overlays by id.\n * @private\n * @type {Object<string, import(\"./Overlay.js\").default>}\n */\n this.overlayIdIndex_ = {};\n\n /**\n * @type {import(\"./renderer/Map.js\").default}\n * @private\n */\n this.renderer_ = null;\n\n /**\n * @type {undefined|function(Event): void}\n * @private\n */\n this.handleResize_;\n\n /**\n * @private\n * @type {!Array<PostRenderFunction>}\n */\n this.postRenderFunctions_ = [];\n\n /**\n * @private\n * @type {TileQueue}\n */\n this.tileQueue_ = new TileQueue(\n this.getTilePriority.bind(this),\n this.handleTileChange_.bind(this)\n );\n\n this.addEventListener(\n getChangeEventType(MapProperty.LAYERGROUP),\n this.handleLayerGroupChanged_\n );\n this.addEventListener(\n getChangeEventType(MapProperty.VIEW),\n this.handleViewChanged_\n );\n this.addEventListener(\n getChangeEventType(MapProperty.SIZE),\n this.handleSizeChanged_\n );\n this.addEventListener(\n getChangeEventType(MapProperty.TARGET),\n this.handleTargetChanged_\n );\n\n // setProperties will trigger the rendering of the map if the map\n // is \"defined\" already.\n this.setProperties(optionsInternal.values);\n\n this.controls.forEach(\n /**\n * @param {import(\"./control/Control.js\").default} control Control.\n * @this {PluggableMap}\n */\n function (control) {\n control.setMap(this);\n }.bind(this)\n );\n\n this.controls.addEventListener(\n CollectionEventType.ADD,\n /**\n * @param {import(\"./Collection.js\").CollectionEvent} event CollectionEvent.\n */\n function (event) {\n event.element.setMap(this);\n }.bind(this)\n );\n\n this.controls.addEventListener(\n CollectionEventType.REMOVE,\n /**\n * @param {import(\"./Collection.js\").CollectionEvent} event CollectionEvent.\n */\n function (event) {\n event.element.setMap(null);\n }.bind(this)\n );\n\n this.interactions.forEach(\n /**\n * @param {import(\"./interaction/Interaction.js\").default} interaction Interaction.\n * @this {PluggableMap}\n */\n function (interaction) {\n interaction.setMap(this);\n }.bind(this)\n );\n\n this.interactions.addEventListener(\n CollectionEventType.ADD,\n /**\n * @param {import(\"./Collection.js\").CollectionEvent} event CollectionEvent.\n */\n function (event) {\n event.element.setMap(this);\n }.bind(this)\n );\n\n this.interactions.addEventListener(\n CollectionEventType.REMOVE,\n /**\n * @param {import(\"./Collection.js\").CollectionEvent} event CollectionEvent.\n */\n function (event) {\n event.element.setMap(null);\n }.bind(this)\n );\n\n this.overlays_.forEach(this.addOverlayInternal_.bind(this));\n\n this.overlays_.addEventListener(\n CollectionEventType.ADD,\n /**\n * @param {import(\"./Collection.js\").CollectionEvent} event CollectionEvent.\n */\n function (event) {\n this.addOverlayInternal_(\n /** @type {import(\"./Overlay.js\").default} */ (event.element)\n );\n }.bind(this)\n );\n\n this.overlays_.addEventListener(\n CollectionEventType.REMOVE,\n /**\n * @param {import(\"./Collection.js\").CollectionEvent} event CollectionEvent.\n */\n function (event) {\n const overlay = /** @type {import(\"./Overlay.js\").default} */ (event.element);\n const id = overlay.getId();\n if (id !== undefined) {\n delete this.overlayIdIndex_[id.toString()];\n }\n event.element.setMap(null);\n }.bind(this)\n );\n }\n\n /**\n * @abstract\n * @return {import(\"./renderer/Map.js\").default} The map renderer\n */\n createRenderer() {\n throw new Error('Use a map type that has a createRenderer method');\n }\n\n /**\n * Add the given control to the map.\n * @param {import(\"./control/Control.js\").default} control Control.\n * @api\n */\n addControl(control) {\n this.getControls().push(control);\n }\n\n /**\n * Add the given interaction to the map. If you want to add an interaction\n * at another point of the collection use `getInteraction()` and the methods\n * available on {@link module:ol/Collection~Collection}. This can be used to\n * stop the event propagation from the handleEvent function. The interactions\n * get to handle the events in the reverse order of this collection.\n * @param {import(\"./interaction/Interaction.js\").default} interaction Interaction to add.\n * @api\n */\n addInteraction(interaction) {\n this.getInteractions().push(interaction);\n }\n\n /**\n * Adds the given layer to the top of this map. If you want to add a layer\n * elsewhere in the stack, use `getLayers()` and the methods available on\n * {@link module:ol/Collection~Collection}.\n * @param {import(\"./layer/Base.js\").default} layer Layer.\n * @api\n */\n addLayer(layer) {\n const layers = this.getLayerGroup().getLayers();\n layers.push(layer);\n }\n\n /**\n * Add the given overlay to the map.\n * @param {import(\"./Overlay.js\").default} overlay Overlay.\n * @api\n */\n addOverlay(overlay) {\n this.getOverlays().push(overlay);\n }\n\n /**\n * This deals with map's overlay collection changes.\n * @param {import(\"./Overlay.js\").default} overlay Overlay.\n * @private\n */\n addOverlayInternal_(overlay) {\n const id = overlay.getId();\n if (id !== undefined) {\n this.overlayIdIndex_[id.toString()] = overlay;\n }\n overlay.setMap(this);\n }\n\n /**\n *\n * Clean up.\n */\n disposeInternal() {\n this.setTarget(null);\n super.disposeInternal();\n }\n\n /**\n * Detect features that intersect a pixel on the viewport, and execute a\n * callback with each intersecting feature. Layers included in the detection can\n * be configured through the `layerFilter` option in `opt_options`.\n * @param {import(\"./pixel.js\").Pixel} pixel Pixel.\n * @param {function(this: S, import(\"./Feature.js\").FeatureLike,\n * import(\"./layer/Layer.js\").default): T} callback Feature callback. The callback will be\n * called with two arguments. The first argument is one\n * {@link module:ol/Feature feature} or\n * {@link module:ol/render/Feature render feature} at the pixel, the second is\n * the {@link module:ol/layer/Layer layer} of the feature and will be null for\n * unmanaged layers. To stop detection, callback functions can return a\n * truthy value.\n * @param {AtPixelOptions=} opt_options Optional options.\n * @return {T|undefined} Callback result, i.e. the return value of last\n * callback execution, or the first truthy callback return value.\n * @template S,T\n * @api\n */\n forEachFeatureAtPixel(pixel, callback, opt_options) {\n if (!this.frameState_) {\n return;\n }\n const coordinate = this.getCoordinateFromPixelInternal(pixel);\n opt_options = opt_options !== undefined ? opt_options : {};\n const hitTolerance =\n opt_options.hitTolerance !== undefined\n ? opt_options.hitTolerance * this.frameState_.pixelRatio\n : 0;\n const layerFilter =\n opt_options.layerFilter !== undefined ? opt_options.layerFilter : TRUE;\n const checkWrapped = opt_options.checkWrapped !== false;\n return this.renderer_.forEachFeatureAtCoordinate(\n coordinate,\n this.frameState_,\n hitTolerance,\n checkWrapped,\n callback,\n null,\n layerFilter,\n null\n );\n }\n\n /**\n * Get all features that intersect a pixel on the viewport.\n * @param {import(\"./pixel.js\").Pixel} pixel Pixel.\n * @param {AtPixelOptions=} opt_options Optional options.\n * @return {Array<import(\"./Feature.js\").FeatureLike>} The detected features or\n * an empty array if none were found.\n * @api\n */\n getFeaturesAtPixel(pixel, opt_options) {\n const features = [];\n this.forEachFeatureAtPixel(\n pixel,\n function (feature) {\n features.push(feature);\n },\n opt_options\n );\n return features;\n }\n\n /**\n * Detect layers that have a color value at a pixel on the viewport, and\n * execute a callback with each matching layer. Layers included in the\n * detection can be configured through `opt_layerFilter`.\n *\n * Note: this may give false positives unless the map layers have had different `className`\n * properties assigned to them.\n *\n * @param {import(\"./pixel.js\").Pixel} pixel Pixel.\n * @param {function(this: S, import(\"./layer/Layer.js\").default, (Uint8ClampedArray|Uint8Array)): T} callback\n * Layer callback. This callback will receive two arguments: first is the\n * {@link module:ol/layer/Layer layer}, second argument is an array representing\n * [R, G, B, A] pixel values (0 - 255) and will be `null` for layer types\n * that do not currently support this argument. To stop detection, callback\n * functions can return a truthy value.\n * @param {AtPixelOptions=} opt_options Configuration options.\n * @return {T|undefined} Callback result, i.e. the return value of last\n * callback execution, or the first truthy callback return value.\n * @template S,T\n * @api\n */\n forEachLayerAtPixel(pixel, callback, opt_options) {\n if (!this.frameState_) {\n return;\n }\n const options = opt_options || {};\n const hitTolerance =\n options.hitTolerance !== undefined\n ? options.hitTolerance * this.frameState_.pixelRatio\n : 0;\n const layerFilter = options.layerFilter || TRUE;\n return this.renderer_.forEachLayerAtPixel(\n pixel,\n this.frameState_,\n hitTolerance,\n callback,\n layerFilter\n );\n }\n\n /**\n * Detect if features intersect a pixel on the viewport. Layers included in the\n * detection can be configured through `opt_layerFilter`.\n * @param {import(\"./pixel.js\").Pixel} pixel Pixel.\n * @param {AtPixelOptions=} opt_options Optional options.\n * @return {boolean} Is there a feature at the given pixel?\n * @api\n */\n hasFeatureAtPixel(pixel, opt_options) {\n if (!this.frameState_) {\n return false;\n }\n const coordinate = this.getCoordinateFromPixelInternal(pixel);\n opt_options = opt_options !== undefined ? opt_options : {};\n const layerFilter =\n opt_options.layerFilter !== undefined ? opt_options.layerFilter : TRUE;\n const hitTolerance =\n opt_options.hitTolerance !== undefined\n ? opt_options.hitTolerance * this.frameState_.pixelRatio\n : 0;\n const checkWrapped = opt_options.checkWrapped !== false;\n return this.renderer_.hasFeatureAtCoordinate(\n coordinate,\n this.frameState_,\n hitTolerance,\n checkWrapped,\n layerFilter,\n null\n );\n }\n\n /**\n * Returns the coordinate in user projection for a browser event.\n * @param {MouseEvent} event Event.\n * @return {import(\"./coordinate.js\").Coordinate} Coordinate.\n * @api\n */\n getEventCoordinate(event) {\n return this.getCoordinateFromPixel(this.getEventPixel(event));\n }\n\n /**\n * Returns the coordinate in view projection for a browser event.\n * @param {MouseEvent} event Event.\n * @return {import(\"./coordinate.js\").Coordinate} Coordinate.\n */\n getEventCoordinateInternal(event) {\n return this.getCoordinateFromPixelInternal(this.getEventPixel(event));\n }\n\n /**\n * Returns the map pixel position for a browser event relative to the viewport.\n * @param {UIEvent} event Event.\n * @return {import(\"./pixel.js\").Pixel} Pixel.\n * @api\n */\n getEventPixel(event) {\n const viewportPosition = this.viewport_.getBoundingClientRect();\n const eventPosition =\n //FIXME Are we really calling this with a TouchEvent anywhere?\n 'changedTouches' in event\n ? /** @type {TouchEvent} */ (event).changedTouches[0]\n : /** @type {MouseEvent} */ (event);\n\n return [\n eventPosition.clientX - viewportPosition.left,\n eventPosition.clientY - viewportPosition.top,\n ];\n }\n\n /**\n * Get the target in which this map is rendered.\n * Note that this returns what is entered as an option or in setTarget:\n * if that was an element, it returns an element; if a string, it returns that.\n * @return {HTMLElement|string|undefined} The Element or id of the Element that the\n * map is rendered in.\n * @observable\n * @api\n */\n getTarget() {\n return /** @type {HTMLElement|string|undefined} */ (this.get(\n MapProperty.TARGET\n ));\n }\n\n /**\n * Get the DOM element into which this map is rendered. In contrast to\n * `getTarget` this method always return an `Element`, or `null` if the\n * map has no target.\n * @return {HTMLElement} The element that the map is rendered in.\n * @api\n */\n getTargetElement() {\n const target = this.getTarget();\n if (target !== undefined) {\n return typeof target === 'string'\n ? document.getElementById(target)\n : target;\n } else {\n return null;\n }\n }\n\n /**\n * Get the coordinate for a given pixel. This returns a coordinate in the\n * user projection.\n * @param {import(\"./pixel.js\").Pixel} pixel Pixel position in the map viewport.\n * @return {import(\"./coordinate.js\").Coordinate} The coordinate for the pixel position.\n * @api\n */\n getCoordinateFromPixel(pixel) {\n return toUserCoordinate(\n this.getCoordinateFromPixelInternal(pixel),\n this.getView().getProjection()\n );\n }\n\n /**\n * Get the coordinate for a given pixel. This returns a coordinate in the\n * map view projection.\n * @param {import(\"./pixel.js\").Pixel} pixel Pixel position in the map viewport.\n * @return {import(\"./coordinate.js\").Coordinate} The coordinate for the pixel position.\n */\n getCoordinateFromPixelInternal(pixel) {\n const frameState = this.frameState_;\n if (!frameState) {\n return null;\n } else {\n return applyTransform(\n frameState.pixelToCoordinateTransform,\n pixel.slice()\n );\n }\n }\n\n /**\n * Get the map controls. Modifying this collection changes the controls\n * associated with the map.\n * @return {Collection<import(\"./control/Control.js\").default>} Controls.\n * @api\n */\n getControls() {\n return this.controls;\n }\n\n /**\n * Get the map overlays. Modifying this collection changes the overlays\n * associated with the map.\n * @return {Collection<import(\"./Overlay.js\").default>} Overlays.\n * @api\n */\n getOverlays() {\n return this.overlays_;\n }\n\n /**\n * Get an overlay by its identifier (the value returned by overlay.getId()).\n * Note that the index treats string and numeric identifiers as the same. So\n * `map.getOverlayById(2)` will return an overlay with id `'2'` or `2`.\n * @param {string|number} id Overlay identifier.\n * @return {import(\"./Overlay.js\").default} Overlay.\n * @api\n */\n getOverlayById(id) {\n const overlay = this.overlayIdIndex_[id.toString()];\n return overlay !== undefined ? overlay : null;\n }\n\n /**\n * Get the map interactions. Modifying this collection changes the interactions\n * associated with the map.\n *\n * Interactions are used for e.g. pan, zoom and rotate.\n * @return {Collection<import(\"./interaction/Interaction.js\").default>} Interactions.\n * @api\n */\n getInteractions() {\n return this.interactions;\n }\n\n /**\n * Get the layergroup associated with this map.\n * @return {LayerGroup} A layer group containing the layers in this map.\n * @observable\n * @api\n */\n getLayerGroup() {\n return /** @type {LayerGroup} */ (this.get(MapProperty.LAYERGROUP));\n }\n\n /**\n * Get the collection of layers associated with this map.\n * @return {!Collection<import(\"./layer/Base.js\").default>} Layers.\n * @api\n */\n getLayers() {\n const layers = this.getLayerGroup().getLayers();\n return layers;\n }\n\n /**\n * @return {boolean} Layers have sources that are still loading.\n */\n getLoading() {\n const layerStatesArray = this.getLayerGroup().getLayerStatesArray();\n for (let i = 0, ii = layerStatesArray.length; i < ii; ++i) {\n const layer = layerStatesArray[i].layer;\n const source = /** @type {import(\"./layer/Layer.js\").default} */ (layer).getSource();\n if (source && source.loading) {\n return true;\n }\n }\n return false;\n }\n\n /**\n * Get the pixel for a coordinate. This takes a coordinate in the user\n * projection and returns the corresponding pixel.\n * @param {import(\"./coordinate.js\").Coordinate} coordinate A map coordinate.\n * @return {import(\"./pixel.js\").Pixel} A pixel position in the map viewport.\n * @api\n */\n getPixelFromCoordinate(coordinate) {\n const viewCoordinate = fromUserCoordinate(\n coordinate,\n this.getView().getProjection()\n );\n return this.getPixelFromCoordinateInternal(viewCoordinate);\n }\n\n /**\n * Get the pixel for a coordinate. This takes a coordinate in the map view\n * projection and returns the corresponding pixel.\n * @param {import(\"./coordinate.js\").Coordinate} coordinate A map coordinate.\n * @return {import(\"./pixel.js\").Pixel} A pixel position in the map viewport.\n */\n getPixelFromCoordinateInternal(coordinate) {\n const frameState = this.frameState_;\n if (!frameState) {\n return null;\n } else {\n return applyTransform(\n frameState.coordinateToPixelTransform,\n coordinate.slice(0, 2)\n );\n }\n }\n\n /**\n * Get the map renderer.\n * @return {import(\"./renderer/Map.js\").default} Renderer\n */\n getRenderer() {\n return this.renderer_;\n }\n\n /**\n * Get the size of this map.\n * @return {import(\"./size.js\").Size|undefined} The size in pixels of the map in the DOM.\n * @observable\n * @api\n */\n getSize() {\n return /** @type {import(\"./size.js\").Size|undefined} */ (this.get(\n MapProperty.SIZE\n ));\n }\n\n /**\n * Get the view associated with this map. A view manages properties such as\n * center and resolution.\n * @return {View} The view that controls this map.\n * @observable\n * @api\n */\n getView() {\n return /** @type {View} */ (this.get(MapProperty.VIEW));\n }\n\n /**\n * Get the element that serves as the map viewport.\n * @return {HTMLElement} Viewport.\n * @api\n */\n getViewport() {\n return this.viewport_;\n }\n\n /**\n * Get the element that serves as the container for overlays. Elements added to\n * this container will let mousedown and touchstart events through to the map,\n * so clicks and gestures on an overlay will trigger {@link module:ol/MapBrowserEvent~MapBrowserEvent}\n * events.\n * @return {!HTMLElement} The map's overlay container.\n */\n getOverlayContainer() {\n return this.overlayContainer_;\n }\n\n /**\n * Get the element that serves as a container for overlays that don't allow\n * event propagation. Elements added to this container won't let mousedown and\n * touchstart events through to the map, so clicks and gestures on an overlay\n * don't trigger any {@link module:ol/MapBrowserEvent~MapBrowserEvent}.\n * @return {!HTMLElement} The map's overlay container that stops events.\n */\n getOverlayContainerStopEvent() {\n return this.overlayContainerStopEvent_;\n }\n\n /**\n * @param {import(\"./Tile.js\").default} tile Tile.\n * @param {string} tileSourceKey Tile source key.\n * @param {import(\"./coordinate.js\").Coordinate} tileCenter Tile center.\n * @param {number} tileResolution Tile resolution.\n * @return {number} Tile priority.\n */\n getTilePriority(tile, tileSourceKey, tileCenter, tileResolution) {\n return getTilePriority(\n this.frameState_,\n tile,\n tileSourceKey,\n tileCenter,\n tileResolution\n );\n }\n\n /**\n * @param {UIEvent} browserEvent Browser event.\n * @param {string=} opt_type Type.\n */\n handleBrowserEvent(browserEvent, opt_type) {\n const type = opt_type || browserEvent.type;\n const mapBrowserEvent = new MapBrowserEvent(type, this, browserEvent);\n this.handleMapBrowserEvent(mapBrowserEvent);\n }\n\n /**\n * @param {MapBrowserEvent} mapBrowserEvent The event to handle.\n */\n handleMapBrowserEvent(mapBrowserEvent) {\n if (!this.frameState_) {\n // With no view defined, we cannot translate pixels into geographical\n // coordinates so interactions cannot be used.\n return;\n }\n const originalEvent = /** @type {PointerEvent} */ (mapBrowserEvent.originalEvent);\n const eventType = originalEvent.type;\n if (\n eventType === PointerEventType.POINTERDOWN ||\n eventType === EventType.WHEEL ||\n eventType === EventType.KEYDOWN\n ) {\n const rootNode = this.viewport_.getRootNode\n ? this.viewport_.getRootNode()\n : document;\n const target =\n rootNode === document\n ? /** @type {Node} */ (originalEvent.target)\n : /** @type {ShadowRoot} */ (rootNode).elementFromPoint(\n originalEvent.clientX,\n originalEvent.clientY\n );\n if (\n // Abort if the target is a child of the container for elements whose events are not meant\n // to be handled by map interactions.\n this.overlayContainerStopEvent_.contains(target) ||\n // Abort if the event target is a child of the container that is no longer in the page.\n // It's possible for the target to no longer be in the page if it has been removed in an\n // event listener, this might happen in a Control that recreates it's content based on\n // user interaction either manually or via a render in something like https://reactjs.org/\n !(rootNode === document ? document.documentElement : rootNode).contains(\n target\n )\n ) {\n return;\n }\n }\n mapBrowserEvent.frameState = this.frameState_;\n const interactionsArray = this.getInteractions().getArray();\n if (this.dispatchEvent(mapBrowserEvent) !== false) {\n for (let i = interactionsArray.length - 1; i >= 0; i--) {\n const interaction = interactionsArray[i];\n if (!interaction.getActive()) {\n continue;\n }\n const cont = interaction.handleEvent(mapBrowserEvent);\n if (!cont) {\n break;\n }\n }\n }\n }\n\n /**\n * @protected\n */\n handlePostRender() {\n const frameState = this.frameState_;\n\n // Manage the tile queue\n // Image loads are expensive and a limited resource, so try to use them\n // efficiently:\n // * When the view is static we allow a large number of parallel tile loads\n // to complete the frame as quickly as possible.\n // * When animating or interacting, image loads can cause janks, so we reduce\n // the maximum number of loads per frame and limit the number of parallel\n // tile loads to remain reactive to view changes and to reduce the chance of\n // loading tiles that will quickly disappear from view.\n const tileQueue = this.tileQueue_;\n if (!tileQueue.isEmpty()) {\n let maxTotalLoading = this.maxTilesLoading_;\n let maxNewLoads = maxTotalLoading;\n if (frameState) {\n const hints = frameState.viewHints;\n if (hints[ViewHint.ANIMATING] || hints[ViewHint.INTERACTING]) {\n const lowOnFrameBudget =\n !IMAGE_DECODE && Date.now() - frameState.time > 8;\n maxTotalLoading = lowOnFrameBudget ? 0 : 8;\n maxNewLoads = lowOnFrameBudget ? 0 : 2;\n }\n }\n if (tileQueue.getTilesLoading() < maxTotalLoading) {\n tileQueue.reprioritize(); // FIXME only call if view has changed\n tileQueue.loadMoreTiles(maxTotalLoading, maxNewLoads);\n }\n }\n\n if (\n frameState &&\n this.hasListener(RenderEventType.RENDERCOMPLETE) &&\n !frameState.animate &&\n !this.tileQueue_.getTilesLoading() &&\n !this.getLoading()\n ) {\n this.renderer_.dispatchRenderEvent(\n RenderEventType.RENDERCOMPLETE,\n frameState\n );\n }\n\n const postRenderFunctions = this.postRenderFunctions_;\n for (let i = 0, ii = postRenderFunctions.length; i < ii; ++i) {\n postRenderFunctions[i](this, frameState);\n }\n postRenderFunctions.length = 0;\n }\n\n /**\n * @private\n */\n handleSizeChanged_() {\n if (this.getView() && !this.getView().getAnimating()) {\n this.getView().resolveConstraints(0);\n }\n\n this.render();\n }\n\n /**\n * @private\n */\n handleTargetChanged_() {\n // target may be undefined, null, a string or an Element.\n // If it's a string we convert it to an Element before proceeding.\n // If it's not now an Element we remove the viewport from the DOM.\n // If it's an Element we append the viewport element to it.\n\n let targetElement;\n if (this.getTarget()) {\n targetElement = this.getTargetElement();\n }\n\n if (this.mapBrowserEventHandler_) {\n for (let i = 0, ii = this.keyHandlerKeys_.length; i < ii; ++i) {\n unlistenByKey(this.keyHandlerKeys_[i]);\n }\n this.keyHandlerKeys_ = null;\n this.viewport_.removeEventListener(\n EventType.CONTEXTMENU,\n this.boundHandleBrowserEvent_\n );\n this.viewport_.removeEventListener(\n EventType.WHEEL,\n this.boundHandleBrowserEvent_\n );\n if (this.handleResize_ !== undefined) {\n removeEventListener(EventType.RESIZE, this.handleResize_, false);\n this.handleResize_ = undefined;\n }\n this.mapBrowserEventHandler_.dispose();\n this.mapBrowserEventHandler_ = null;\n removeNode(this.viewport_);\n }\n\n if (!targetElement) {\n if (this.renderer_) {\n clearTimeout(this.postRenderTimeoutHandle_);\n this.postRenderFunctions_.length = 0;\n this.renderer_.dispose();\n this.renderer_ = null;\n }\n if (this.animationDelayKey_) {\n cancelAnimationFrame(this.animationDelayKey_);\n this.animationDelayKey_ = undefined;\n }\n } else {\n targetElement.appendChild(this.viewport_);\n if (!this.renderer_) {\n this.renderer_ = this.createRenderer();\n }\n\n this.mapBrowserEventHandler_ = new MapBrowserEventHandler(\n this,\n this.moveTolerance_\n );\n for (const key in MapBrowserEventType) {\n this.mapBrowserEventHandler_.addEventListener(\n MapBrowserEventType[key],\n this.handleMapBrowserEvent.bind(this)\n );\n }\n this.viewport_.addEventListener(\n EventType.CONTEXTMENU,\n this.boundHandleBrowserEvent_,\n false\n );\n this.viewport_.addEventListener(\n EventType.WHEEL,\n this.boundHandleBrowserEvent_,\n PASSIVE_EVENT_LISTENERS ? {passive: false} : false\n );\n\n const keyboardEventTarget = !this.keyboardEventTarget_\n ? targetElement\n : this.keyboardEventTarget_;\n this.keyHandlerKeys_ = [\n listen(\n keyboardEventTarget,\n EventType.KEYDOWN,\n this.handleBrowserEvent,\n this\n ),\n listen(\n keyboardEventTarget,\n EventType.KEYPRESS,\n this.handleBrowserEvent,\n this\n ),\n ];\n\n if (!this.handleResize_) {\n this.handleResize_ = this.updateSize.bind(this);\n window.addEventListener(EventType.RESIZE, this.handleResize_, false);\n }\n }\n\n this.updateSize();\n // updateSize calls setSize, so no need to call this.render\n // ourselves here.\n }\n\n /**\n * @private\n */\n handleTileChange_() {\n this.render();\n }\n\n /**\n * @private\n */\n handleViewPropertyChanged_() {\n this.render();\n }\n\n /**\n * @private\n */\n handleViewChanged_() {\n if (this.viewPropertyListenerKey_) {\n unlistenByKey(this.viewPropertyListenerKey_);\n this.viewPropertyListenerKey_ = null;\n }\n if (this.viewChangeListenerKey_) {\n unlistenByKey(this.viewChangeListenerKey_);\n this.viewChangeListenerKey_ = null;\n }\n const view = this.getView();\n if (view) {\n this.updateViewportSize_();\n\n this.viewPropertyListenerKey_ = listen(\n view,\n ObjectEventType.PROPERTYCHANGE,\n this.handleViewPropertyChanged_,\n this\n );\n this.viewChangeListenerKey_ = listen(\n view,\n EventType.CHANGE,\n this.handleViewPropertyChanged_,\n this\n );\n\n view.resolveConstraints(0);\n }\n this.render();\n }\n\n /**\n * @private\n */\n handleLayerGroupChanged_() {\n if (this.layerGroupPropertyListenerKeys_) {\n this.layerGroupPropertyListenerKeys_.forEach(unlistenByKey);\n this.layerGroupPropertyListenerKeys_ = null;\n }\n const layerGroup = this.getLayerGroup();\n if (layerGroup) {\n this.layerGroupPropertyListenerKeys_ = [\n listen(layerGroup, ObjectEventType.PROPERTYCHANGE, this.render, this),\n listen(layerGroup, EventType.CHANGE, this.render, this),\n ];\n }\n this.render();\n }\n\n /**\n * @return {boolean} Is rendered.\n */\n isRendered() {\n return !!this.frameState_;\n }\n\n /**\n * Requests an immediate render in a synchronous manner.\n * @api\n */\n renderSync() {\n if (this.animationDelayKey_) {\n cancelAnimationFrame(this.animationDelayKey_);\n }\n this.animationDelay_();\n }\n\n /**\n * Redraws all text after new fonts have loaded\n */\n redrawText() {\n const layerStates = this.getLayerGroup().getLayerStatesArray();\n for (let i = 0, ii = layerStates.length; i < ii; ++i) {\n const layer = layerStates[i].layer;\n if (layer.hasRenderer()) {\n layer.getRenderer().handleFontsChanged();\n }\n }\n }\n\n /**\n * Request a map rendering (at the next animation frame).\n * @api\n */\n render() {\n if (this.renderer_ && this.animationDelayKey_ === undefined) {\n this.animationDelayKey_ = requestAnimationFrame(this.animationDelay_);\n }\n }\n\n /**\n * Remove the given control from the map.\n * @param {import(\"./control/Control.js\").default} control Control.\n * @return {import(\"./control/Control.js\").default|undefined} The removed control (or undefined\n * if the control was not found).\n * @api\n */\n removeControl(control) {\n return this.getControls().remove(control);\n }\n\n /**\n * Remove the given interaction from the map.\n * @param {import(\"./interaction/Interaction.js\").default} interaction Interaction to remove.\n * @return {import(\"./interaction/Interaction.js\").default|undefined} The removed interaction (or\n * undefined if the interaction was not found).\n * @api\n */\n removeInteraction(interaction) {\n return this.getInteractions().remove(interaction);\n }\n\n /**\n * Removes the given layer from the map.\n * @param {import(\"./layer/Base.js\").default} layer Layer.\n * @return {import(\"./layer/Base.js\").default|undefined} The removed layer (or undefined if the\n * layer was not found).\n * @api\n */\n removeLayer(layer) {\n const layers = this.getLayerGroup().getLayers();\n return layers.remove(layer);\n }\n\n /**\n * Remove the given overlay from the map.\n * @param {import(\"./Overlay.js\").default} overlay Overlay.\n * @return {import(\"./Overlay.js\").default|undefined} The removed overlay (or undefined\n * if the overlay was not found).\n * @api\n */\n removeOverlay(overlay) {\n return this.getOverlays().remove(overlay);\n }\n\n /**\n * @param {number} time Time.\n * @private\n */\n renderFrame_(time) {\n const size = this.getSize();\n const view = this.getView();\n const previousFrameState = this.frameState_;\n /** @type {?FrameState} */\n let frameState = null;\n if (size !== undefined && hasArea(size) && view && view.isDef()) {\n const viewHints = view.getHints(\n this.frameState_ ? this.frameState_.viewHints : undefined\n );\n const viewState = view.getState();\n frameState = {\n animate: false,\n coordinateToPixelTransform: this.coordinateToPixelTransform_,\n declutterItems: previousFrameState\n ? previousFrameState.declutterItems\n : [],\n extent: getForViewAndSize(\n viewState.center,\n viewState.resolution,\n viewState.rotation,\n size\n ),\n index: this.frameIndex_++,\n layerIndex: 0,\n layerStatesArray: this.getLayerGroup().getLayerStatesArray(),\n pixelRatio: this.pixelRatio_,\n pixelToCoordinateTransform: this.pixelToCoordinateTransform_,\n postRenderFunctions: [],\n size: size,\n tileQueue: this.tileQueue_,\n time: time,\n usedTiles: {},\n viewState: viewState,\n viewHints: viewHints,\n wantedTiles: {},\n };\n }\n\n this.frameState_ = frameState;\n this.renderer_.renderFrame(frameState);\n\n if (frameState) {\n if (frameState.animate) {\n this.render();\n }\n Array.prototype.push.apply(\n this.postRenderFunctions_,\n frameState.postRenderFunctions\n );\n\n if (previousFrameState) {\n const moveStart =\n !this.previousExtent_ ||\n (!isEmpty(this.previousExtent_) &&\n !equals(frameState.extent, this.previousExtent_));\n if (moveStart) {\n this.dispatchEvent(\n new MapEvent(MapEventType.MOVESTART, this, previousFrameState)\n );\n this.previousExtent_ = createOrUpdateEmpty(this.previousExtent_);\n }\n }\n\n const idle =\n this.previousExtent_ &&\n !frameState.viewHints[ViewHint.ANIMATING] &&\n !frameState.viewHints[ViewHint.INTERACTING] &&\n !equals(frameState.extent, this.previousExtent_);\n\n if (idle) {\n this.dispatchEvent(\n new MapEvent(MapEventType.MOVEEND, this, frameState)\n );\n clone(frameState.extent, this.previousExtent_);\n }\n }\n\n this.dispatchEvent(new MapEvent(MapEventType.POSTRENDER, this, frameState));\n\n this.postRenderTimeoutHandle_ = setTimeout(\n this.handlePostRender.bind(this),\n 0\n );\n }\n\n /**\n * Sets the layergroup of this map.\n * @param {LayerGroup} layerGroup A layer group containing the layers in this map.\n * @observable\n * @api\n */\n setLayerGroup(layerGroup) {\n this.set(MapProperty.LAYERGROUP, layerGroup);\n }\n\n /**\n * Set the size of this map.\n * @param {import(\"./size.js\").Size|undefined} size The size in pixels of the map in the DOM.\n * @observable\n * @api\n */\n setSize(size) {\n this.set(MapProperty.SIZE, size);\n }\n\n /**\n * Set the target element to render this map into.\n * @param {HTMLElement|string|undefined} target The Element or id of the Element\n * that the map is rendered in.\n * @observable\n * @api\n */\n setTarget(target) {\n this.set(MapProperty.TARGET, target);\n }\n\n /**\n * Set the view for this map.\n * @param {View} view The view that controls this map.\n * @observable\n * @api\n */\n setView(view) {\n this.set(MapProperty.VIEW, view);\n }\n\n /**\n * Force a recalculation of the map viewport size. This should be called when\n * third-party code changes the size of the map viewport.\n * @api\n */\n updateSize() {\n const targetElement = this.getTargetElement();\n\n if (!targetElement) {\n this.setSize(undefined);\n } else {\n const computedStyle = getComputedStyle(targetElement);\n this.setSize([\n targetElement.offsetWidth -\n parseFloat(computedStyle['borderLeftWidth']) -\n parseFloat(computedStyle['paddingLeft']) -\n parseFloat(computedStyle['paddingRight']) -\n parseFloat(computedStyle['borderRightWidth']),\n targetElement.offsetHeight -\n parseFloat(computedStyle['borderTopWidth']) -\n parseFloat(computedStyle['paddingTop']) -\n parseFloat(computedStyle['paddingBottom']) -\n parseFloat(computedStyle['borderBottomWidth']),\n ]);\n }\n\n this.updateViewportSize_();\n }\n\n /**\n * Recomputes the viewport size and save it on the view object (if any)\n * @private\n */\n updateViewportSize_() {\n const view = this.getView();\n if (view) {\n let size = undefined;\n const computedStyle = getComputedStyle(this.viewport_);\n if (computedStyle.width && computedStyle.height) {\n size = [\n parseInt(computedStyle.width, 10),\n parseInt(computedStyle.height, 10),\n ];\n }\n view.setViewportSize(size);\n }\n }\n}\n\n/**\n * @param {MapOptions} options Map options.\n * @return {MapOptionsInternal} Internal map options.\n */\nfunction createOptionsInternal(options) {\n /**\n * @type {HTMLElement|Document}\n */\n let keyboardEventTarget = null;\n if (options.keyboardEventTarget !== undefined) {\n keyboardEventTarget =\n typeof options.keyboardEventTarget === 'string'\n ? document.getElementById(options.keyboardEventTarget)\n : options.keyboardEventTarget;\n }\n\n /**\n * @type {Object<string, *>}\n */\n const values = {};\n\n const layerGroup =\n options.layers &&\n typeof (/** @type {?} */ (options.layers).getLayers) === 'function'\n ? /** @type {LayerGroup} */ (options.layers)\n : new LayerGroup({layers: /** @type {Collection} */ (options.layers)});\n values[MapProperty.LAYERGROUP] = layerGroup;\n\n values[MapProperty.TARGET] = options.target;\n\n values[MapProperty.VIEW] =\n options.view !== undefined ? options.view : new View();\n\n let controls;\n if (options.controls !== undefined) {\n if (Array.isArray(options.controls)) {\n controls = new Collection(options.controls.slice());\n } else {\n assert(\n typeof (/** @type {?} */ (options.controls).getArray) === 'function',\n 47\n ); // Expected `controls` to be an array or an `import(\"./Collection.js\").Collection`\n controls = /** @type {Collection} */ (options.controls);\n }\n }\n\n let interactions;\n if (options.interactions !== undefined) {\n if (Array.isArray(options.interactions)) {\n interactions = new Collection(options.interactions.slice());\n } else {\n assert(\n typeof (/** @type {?} */ (options.interactions).getArray) ===\n 'function',\n 48\n ); // Expected `interactions` to be an array or an `import(\"./Collection.js\").Collection`\n interactions = /** @type {Collection} */ (options.interactions);\n }\n }\n\n let overlays;\n if (options.overlays !== undefined) {\n if (Array.isArray(options.overlays)) {\n overlays = new Collection(options.overlays.slice());\n } else {\n assert(\n typeof (/** @type {?} */ (options.overlays).getArray) === 'function',\n 49\n ); // Expected `overlays` to be an array or an `import(\"./Collection.js\").Collection`\n overlays = options.overlays;\n }\n } else {\n overlays = new Collection();\n }\n\n return {\n controls: controls,\n interactions: interactions,\n keyboardEventTarget: keyboardEventTarget,\n overlays: overlays,\n values: values,\n };\n}\nexport default PluggableMap;\n","/**\n * @module ol/control/Control\n */\nimport BaseObject from '../Object.js';\nimport MapEventType from '../MapEventType.js';\nimport {VOID} from '../functions.js';\nimport {listen, unlistenByKey} from '../events.js';\nimport {removeNode} from '../dom.js';\n\n/**\n * @typedef {Object} Options\n * @property {HTMLElement} [element] The element is the control's\n * container element. This only needs to be specified if you're developing\n * a custom control.\n * @property {function(import(\"../MapEvent.js\").default):void} [render] Function called when\n * the control should be re-rendered. This is called in a `requestAnimationFrame`\n * callback.\n * @property {HTMLElement|string} [target] Specify a target if you want\n * the control to be rendered outside of the map's viewport.\n */\n\n/**\n * @classdesc\n * A control is a visible widget with a DOM element in a fixed position on the\n * screen. They can involve user input (buttons), or be informational only;\n * the position is determined using CSS. By default these are placed in the\n * container with CSS class name `ol-overlaycontainer-stopevent`, but can use\n * any outside DOM element.\n *\n * This is the base class for controls. You can use it for simple custom\n * controls by creating the element with listeners, creating an instance:\n * ```js\n * var myControl = new Control({element: myElement});\n * ```\n * and then adding this to the map.\n *\n * The main advantage of having this as a control rather than a simple separate\n * DOM element is that preventing propagation is handled for you. Controls\n * will also be objects in a {@link module:ol/Collection~Collection}, so you can use their methods.\n *\n * You can also extend this base for your own control class. See\n * examples/custom-controls for an example of how to do this.\n *\n * @api\n */\nclass Control extends BaseObject {\n /**\n * @param {Options} options Control options.\n */\n constructor(options) {\n super();\n\n const element = options.element;\n if (element && !options.target && !element.style.pointerEvents) {\n element.style.pointerEvents = 'auto';\n }\n\n /**\n * @protected\n * @type {HTMLElement}\n */\n this.element = element ? element : null;\n\n /**\n * @private\n * @type {HTMLElement}\n */\n this.target_ = null;\n\n /**\n * @private\n * @type {import(\"../PluggableMap.js\").default}\n */\n this.map_ = null;\n\n /**\n * @protected\n * @type {!Array<import(\"../events.js\").EventsKey>}\n */\n this.listenerKeys = [];\n\n if (options.render) {\n this.render = options.render;\n }\n\n if (options.target) {\n this.setTarget(options.target);\n }\n }\n\n /**\n * Clean up.\n */\n disposeInternal() {\n removeNode(this.element);\n super.disposeInternal();\n }\n\n /**\n * Get the map associated with this control.\n * @return {import(\"../PluggableMap.js\").default} Map.\n * @api\n */\n getMap() {\n return this.map_;\n }\n\n /**\n * Remove the control from its current map and attach it to the new map.\n * Subclasses may set up event handlers to get notified about changes to\n * the map here.\n * @param {import(\"../PluggableMap.js\").default} map Map.\n * @api\n */\n setMap(map) {\n if (this.map_) {\n removeNode(this.element);\n }\n for (let i = 0, ii = this.listenerKeys.length; i < ii; ++i) {\n unlistenByKey(this.listenerKeys[i]);\n }\n this.listenerKeys.length = 0;\n this.map_ = map;\n if (this.map_) {\n const target = this.target_\n ? this.target_\n : map.getOverlayContainerStopEvent();\n target.appendChild(this.element);\n if (this.render !== VOID) {\n this.listenerKeys.push(\n listen(map, MapEventType.POSTRENDER, this.render, this)\n );\n }\n map.render();\n }\n }\n\n /**\n * Renders the control.\n * @param {import(\"../MapEvent.js\").default} mapEvent Map event.\n * @api\n */\n render(mapEvent) {}\n\n /**\n * This function is used to set a target element for the control. It has no\n * effect if it is called after the control has been added to the map (i.e.\n * after `setMap` is called on the control). If no `target` is set in the\n * options passed to the control constructor and if `setTarget` is not called\n * then the control is added to the map's overlay container.\n * @param {HTMLElement|string} target Target.\n * @api\n */\n setTarget(target) {\n this.target_ =\n typeof target === 'string' ? document.getElementById(target) : target;\n }\n}\n\nexport default Control;\n","/**\n * @module ol/control/Attribution\n */\nimport Control from './Control.js';\nimport EventType from '../events/EventType.js';\nimport {CLASS_COLLAPSED, CLASS_CONTROL, CLASS_UNSELECTABLE} from '../css.js';\nimport {equals} from '../array.js';\nimport {inView} from '../layer/Layer.js';\nimport {removeChildren, replaceNode} from '../dom.js';\n\n/**\n * @typedef {Object} Options\n * @property {string} [className='ol-attribution'] CSS class name.\n * @property {HTMLElement|string} [target] Specify a target if you\n * want the control to be rendered outside of the map's\n * viewport.\n * @property {boolean} [collapsible] Specify if attributions can\n * be collapsed. If not specified, sources control this behavior with their\n * `attributionsCollapsible` setting.\n * @property {boolean} [collapsed=true] Specify if attributions should\n * be collapsed at startup.\n * @property {string} [tipLabel='Attributions'] Text label to use for the button tip.\n * @property {string} [label='i'] Text label to use for the\n * collapsed attributions button.\n * Instead of text, also an element (e.g. a `span` element) can be used.\n * @property {string|HTMLElement} [collapseLabel='»'] Text label to use\n * for the expanded attributions button.\n * Instead of text, also an element (e.g. a `span` element) can be used.\n * @property {function(import(\"../MapEvent.js\").default):void} [render] Function called when\n * the control should be re-rendered. This is called in a `requestAnimationFrame`\n * callback.\n */\n\n/**\n * @classdesc\n * Control to show all the attributions associated with the layer sources\n * in the map. This control is one of the default controls included in maps.\n * By default it will show in the bottom right portion of the map, but this can\n * be changed by using a css selector for `.ol-attribution`.\n *\n * @api\n */\nclass Attribution extends Control {\n /**\n * @param {Options=} opt_options Attribution options.\n */\n constructor(opt_options) {\n const options = opt_options ? opt_options : {};\n\n super({\n element: document.createElement('div'),\n render: options.render,\n target: options.target,\n });\n\n /**\n * @private\n * @type {HTMLElement}\n */\n this.ulElement_ = document.createElement('ul');\n\n /**\n * @private\n * @type {boolean}\n */\n this.collapsed_ =\n options.collapsed !== undefined ? options.collapsed : true;\n\n /**\n * @private\n * @type {boolean}\n */\n this.overrideCollapsible_ = options.collapsible !== undefined;\n\n /**\n * @private\n * @type {boolean}\n */\n this.collapsible_ =\n options.collapsible !== undefined ? options.collapsible : true;\n\n if (!this.collapsible_) {\n this.collapsed_ = false;\n }\n\n const className =\n options.className !== undefined ? options.className : 'ol-attribution';\n\n const tipLabel =\n options.tipLabel !== undefined ? options.tipLabel : 'Attributions';\n\n const collapseLabel =\n options.collapseLabel !== undefined ? options.collapseLabel : '\\u00BB';\n\n if (typeof collapseLabel === 'string') {\n /**\n * @private\n * @type {HTMLElement}\n */\n this.collapseLabel_ = document.createElement('span');\n this.collapseLabel_.textContent = collapseLabel;\n } else {\n this.collapseLabel_ = collapseLabel;\n }\n\n const label = options.label !== undefined ? options.label : 'i';\n\n if (typeof label === 'string') {\n /**\n * @private\n * @type {HTMLElement}\n */\n this.label_ = document.createElement('span');\n this.label_.textContent = label;\n } else {\n this.label_ = label;\n }\n\n const activeLabel =\n this.collapsible_ && !this.collapsed_ ? this.collapseLabel_ : this.label_;\n const button = document.createElement('button');\n button.setAttribute('type', 'button');\n button.title = tipLabel;\n button.appendChild(activeLabel);\n\n button.addEventListener(\n EventType.CLICK,\n this.handleClick_.bind(this),\n false\n );\n\n const cssClasses =\n className +\n ' ' +\n CLASS_UNSELECTABLE +\n ' ' +\n CLASS_CONTROL +\n (this.collapsed_ && this.collapsible_ ? ' ' + CLASS_COLLAPSED : '') +\n (this.collapsible_ ? '' : ' ol-uncollapsible');\n const element = this.element;\n element.className = cssClasses;\n element.appendChild(this.ulElement_);\n element.appendChild(button);\n\n /**\n * A list of currently rendered resolutions.\n * @type {Array<string>}\n * @private\n */\n this.renderedAttributions_ = [];\n\n /**\n * @private\n * @type {boolean}\n */\n this.renderedVisible_ = true;\n }\n\n /**\n * Collect a list of visible attributions and set the collapsible state.\n * @param {import(\"../PluggableMap.js\").FrameState} frameState Frame state.\n * @return {Array<string>} Attributions.\n * @private\n */\n collectSourceAttributions_(frameState) {\n /**\n * Used to determine if an attribution already exists.\n * @type {!Object<string, boolean>}\n */\n const lookup = {};\n\n /**\n * A list of visible attributions.\n * @type {Array<string>}\n */\n const visibleAttributions = [];\n\n const layerStatesArray = frameState.layerStatesArray;\n for (let i = 0, ii = layerStatesArray.length; i < ii; ++i) {\n const layerState = layerStatesArray[i];\n if (!inView(layerState, frameState.viewState)) {\n continue;\n }\n\n const source = /** @type {import(\"../layer/Layer.js\").default} */ (layerState.layer).getSource();\n if (!source) {\n continue;\n }\n\n const attributionGetter = source.getAttributions();\n if (!attributionGetter) {\n continue;\n }\n\n const attributions = attributionGetter(frameState);\n if (!attributions) {\n continue;\n }\n\n if (\n !this.overrideCollapsible_ &&\n source.getAttributionsCollapsible() === false\n ) {\n this.setCollapsible(false);\n }\n\n if (Array.isArray(attributions)) {\n for (let j = 0, jj = attributions.length; j < jj; ++j) {\n if (!(attributions[j] in lookup)) {\n visibleAttributions.push(attributions[j]);\n lookup[attributions[j]] = true;\n }\n }\n } else {\n if (!(attributions in lookup)) {\n visibleAttributions.push(attributions);\n lookup[attributions] = true;\n }\n }\n }\n return visibleAttributions;\n }\n\n /**\n * @private\n * @param {?import(\"../PluggableMap.js\").FrameState} frameState Frame state.\n */\n updateElement_(frameState) {\n if (!frameState) {\n if (this.renderedVisible_) {\n this.element.style.display = 'none';\n this.renderedVisible_ = false;\n }\n return;\n }\n\n const attributions = this.collectSourceAttributions_(frameState);\n\n const visible = attributions.length > 0;\n if (this.renderedVisible_ != visible) {\n this.element.style.display = visible ? '' : 'none';\n this.renderedVisible_ = visible;\n }\n\n if (equals(attributions, this.renderedAttributions_)) {\n return;\n }\n\n removeChildren(this.ulElement_);\n\n // append the attributions\n for (let i = 0, ii = attributions.length; i < ii; ++i) {\n const element = document.createElement('li');\n element.innerHTML = attributions[i];\n this.ulElement_.appendChild(element);\n }\n\n this.renderedAttributions_ = attributions;\n }\n\n /**\n * @param {MouseEvent} event The event to handle\n * @private\n */\n handleClick_(event) {\n event.preventDefault();\n this.handleToggle_();\n }\n\n /**\n * @private\n */\n handleToggle_() {\n this.element.classList.toggle(CLASS_COLLAPSED);\n if (this.collapsed_) {\n replaceNode(this.collapseLabel_, this.label_);\n } else {\n replaceNode(this.label_, this.collapseLabel_);\n }\n this.collapsed_ = !this.collapsed_;\n }\n\n /**\n * Return `true` if the attribution is collapsible, `false` otherwise.\n * @return {boolean} True if the widget is collapsible.\n * @api\n */\n getCollapsible() {\n return this.collapsible_;\n }\n\n /**\n * Set whether the attribution should be collapsible.\n * @param {boolean} collapsible True if the widget is collapsible.\n * @api\n */\n setCollapsible(collapsible) {\n if (this.collapsible_ === collapsible) {\n return;\n }\n this.collapsible_ = collapsible;\n this.element.classList.toggle('ol-uncollapsible');\n if (!collapsible && this.collapsed_) {\n this.handleToggle_();\n }\n }\n\n /**\n * Collapse or expand the attribution according to the passed parameter. Will\n * not do anything if the attribution isn't collapsible or if the current\n * collapsed state is already the one requested.\n * @param {boolean} collapsed True if the widget is collapsed.\n * @api\n */\n setCollapsed(collapsed) {\n if (!this.collapsible_ || this.collapsed_ === collapsed) {\n return;\n }\n this.handleToggle_();\n }\n\n /**\n * Return `true` when the attribution is currently collapsed or `false`\n * otherwise.\n * @return {boolean} True if the widget is collapsed.\n * @api\n */\n getCollapsed() {\n return this.collapsed_;\n }\n\n /**\n * Update the attribution element.\n * @param {import(\"../MapEvent.js\").default} mapEvent Map event.\n * @override\n */\n render(mapEvent) {\n this.updateElement_(mapEvent.frameState);\n }\n}\n\nexport default Attribution;\n","/**\n * @module ol/control/Rotate\n */\nimport Control from './Control.js';\nimport EventType from '../events/EventType.js';\nimport {CLASS_CONTROL, CLASS_HIDDEN, CLASS_UNSELECTABLE} from '../css.js';\nimport {easeOut} from '../easing.js';\n\n/**\n * @typedef {Object} Options\n * @property {string} [className='ol-rotate'] CSS class name.\n * @property {string|HTMLElement} [label='⇧'] Text label to use for the rotate button.\n * Instead of text, also an element (e.g. a `span` element) can be used.\n * @property {string} [tipLabel='Reset rotation'] Text label to use for the rotate tip.\n * @property {number} [duration=250] Animation duration in milliseconds.\n * @property {boolean} [autoHide=true] Hide the control when rotation is 0.\n * @property {function(import(\"../MapEvent.js\").default):void} [render] Function called when the control should\n * be re-rendered. This is called in a `requestAnimationFrame` callback.\n * @property {function():void} [resetNorth] Function called when the control is clicked.\n * This will override the default `resetNorth`.\n * @property {HTMLElement|string} [target] Specify a target if you want the control to be\n * rendered outside of the map's viewport.\n */\n\n/**\n * @classdesc\n * A button control to reset rotation to 0.\n * To style this control use css selector `.ol-rotate`. A `.ol-hidden` css\n * selector is added to the button when the rotation is 0.\n *\n * @api\n */\nclass Rotate extends Control {\n /**\n * @param {Options=} opt_options Rotate options.\n */\n constructor(opt_options) {\n const options = opt_options ? opt_options : {};\n\n super({\n element: document.createElement('div'),\n render: options.render,\n target: options.target,\n });\n\n const className =\n options.className !== undefined ? options.className : 'ol-rotate';\n\n const label = options.label !== undefined ? options.label : '\\u21E7';\n\n /**\n * @type {HTMLElement}\n * @private\n */\n this.label_ = null;\n\n if (typeof label === 'string') {\n this.label_ = document.createElement('span');\n this.label_.className = 'ol-compass';\n this.label_.textContent = label;\n } else {\n this.label_ = label;\n this.label_.classList.add('ol-compass');\n }\n\n const tipLabel = options.tipLabel ? options.tipLabel : 'Reset rotation';\n\n const button = document.createElement('button');\n button.className = className + '-reset';\n button.setAttribute('type', 'button');\n button.title = tipLabel;\n button.appendChild(this.label_);\n\n button.addEventListener(\n EventType.CLICK,\n this.handleClick_.bind(this),\n false\n );\n\n const cssClasses =\n className + ' ' + CLASS_UNSELECTABLE + ' ' + CLASS_CONTROL;\n const element = this.element;\n element.className = cssClasses;\n element.appendChild(button);\n\n this.callResetNorth_ = options.resetNorth ? options.resetNorth : undefined;\n\n /**\n * @type {number}\n * @private\n */\n this.duration_ = options.duration !== undefined ? options.duration : 250;\n\n /**\n * @type {boolean}\n * @private\n */\n this.autoHide_ = options.autoHide !== undefined ? options.autoHide : true;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.rotation_ = undefined;\n\n if (this.autoHide_) {\n this.element.classList.add(CLASS_HIDDEN);\n }\n }\n\n /**\n * @param {MouseEvent} event The event to handle\n * @private\n */\n handleClick_(event) {\n event.preventDefault();\n if (this.callResetNorth_ !== undefined) {\n this.callResetNorth_();\n } else {\n this.resetNorth_();\n }\n }\n\n /**\n * @private\n */\n resetNorth_() {\n const map = this.getMap();\n const view = map.getView();\n if (!view) {\n // the map does not have a view, so we can't act\n // upon it\n return;\n }\n const rotation = view.getRotation();\n if (rotation !== undefined) {\n if (this.duration_ > 0 && rotation % (2 * Math.PI) !== 0) {\n view.animate({\n rotation: 0,\n duration: this.duration_,\n easing: easeOut,\n });\n } else {\n view.setRotation(0);\n }\n }\n }\n\n /**\n * Update the rotate control element.\n * @param {import(\"../MapEvent.js\").default} mapEvent Map event.\n * @override\n */\n render(mapEvent) {\n const frameState = mapEvent.frameState;\n if (!frameState) {\n return;\n }\n const rotation = frameState.viewState.rotation;\n if (rotation != this.rotation_) {\n const transform = 'rotate(' + rotation + 'rad)';\n if (this.autoHide_) {\n const contains = this.element.classList.contains(CLASS_HIDDEN);\n if (!contains && rotation === 0) {\n this.element.classList.add(CLASS_HIDDEN);\n } else if (contains && rotation !== 0) {\n this.element.classList.remove(CLASS_HIDDEN);\n }\n }\n this.label_.style.transform = transform;\n }\n this.rotation_ = rotation;\n }\n}\n\nexport default Rotate;\n","/**\n * @module ol/control/Zoom\n */\nimport Control from './Control.js';\nimport EventType from '../events/EventType.js';\nimport {CLASS_CONTROL, CLASS_UNSELECTABLE} from '../css.js';\nimport {easeOut} from '../easing.js';\n\n/**\n * @typedef {Object} Options\n * @property {number} [duration=250] Animation duration in milliseconds.\n * @property {string} [className='ol-zoom'] CSS class name.\n * @property {string|HTMLElement} [zoomInLabel='+'] Text label to use for the zoom-in\n * button. Instead of text, also an element (e.g. a `span` element) can be used.\n * @property {string|HTMLElement} [zoomOutLabel='-'] Text label to use for the zoom-out button.\n * Instead of text, also an element (e.g. a `span` element) can be used.\n * @property {string} [zoomInTipLabel='Zoom in'] Text label to use for the button tip.\n * @property {string} [zoomOutTipLabel='Zoom out'] Text label to use for the button tip.\n * @property {number} [delta=1] The zoom delta applied on each click.\n * @property {HTMLElement|string} [target] Specify a target if you want the control to be\n * rendered outside of the map's viewport.\n */\n\n/**\n * @classdesc\n * A control with 2 buttons, one for zoom in and one for zoom out.\n * This control is one of the default controls of a map. To style this control\n * use css selectors `.ol-zoom-in` and `.ol-zoom-out`.\n *\n * @api\n */\nclass Zoom extends Control {\n /**\n * @param {Options=} opt_options Zoom options.\n */\n constructor(opt_options) {\n const options = opt_options ? opt_options : {};\n\n super({\n element: document.createElement('div'),\n target: options.target,\n });\n\n const className =\n options.className !== undefined ? options.className : 'ol-zoom';\n\n const delta = options.delta !== undefined ? options.delta : 1;\n\n const zoomInLabel =\n options.zoomInLabel !== undefined ? options.zoomInLabel : '+';\n const zoomOutLabel =\n options.zoomOutLabel !== undefined ? options.zoomOutLabel : '\\u2212';\n\n const zoomInTipLabel =\n options.zoomInTipLabel !== undefined ? options.zoomInTipLabel : 'Zoom in';\n const zoomOutTipLabel =\n options.zoomOutTipLabel !== undefined\n ? options.zoomOutTipLabel\n : 'Zoom out';\n\n const inElement = document.createElement('button');\n inElement.className = className + '-in';\n inElement.setAttribute('type', 'button');\n inElement.title = zoomInTipLabel;\n inElement.appendChild(\n typeof zoomInLabel === 'string'\n ? document.createTextNode(zoomInLabel)\n : zoomInLabel\n );\n\n inElement.addEventListener(\n EventType.CLICK,\n this.handleClick_.bind(this, delta),\n false\n );\n\n const outElement = document.createElement('button');\n outElement.className = className + '-out';\n outElement.setAttribute('type', 'button');\n outElement.title = zoomOutTipLabel;\n outElement.appendChild(\n typeof zoomOutLabel === 'string'\n ? document.createTextNode(zoomOutLabel)\n : zoomOutLabel\n );\n\n outElement.addEventListener(\n EventType.CLICK,\n this.handleClick_.bind(this, -delta),\n false\n );\n\n const cssClasses =\n className + ' ' + CLASS_UNSELECTABLE + ' ' + CLASS_CONTROL;\n const element = this.element;\n element.className = cssClasses;\n element.appendChild(inElement);\n element.appendChild(outElement);\n\n /**\n * @type {number}\n * @private\n */\n this.duration_ = options.duration !== undefined ? options.duration : 250;\n }\n\n /**\n * @param {number} delta Zoom delta.\n * @param {MouseEvent} event The event to handle\n * @private\n */\n handleClick_(delta, event) {\n event.preventDefault();\n this.zoomByDelta_(delta);\n }\n\n /**\n * @param {number} delta Zoom delta.\n * @private\n */\n zoomByDelta_(delta) {\n const map = this.getMap();\n const view = map.getView();\n if (!view) {\n // the map does not have a view, so we can't act\n // upon it\n return;\n }\n const currentZoom = view.getZoom();\n if (currentZoom !== undefined) {\n const newZoom = view.getConstrainedZoom(currentZoom + delta);\n if (this.duration_ > 0) {\n if (view.getAnimating()) {\n view.cancelAnimations();\n }\n view.animate({\n zoom: newZoom,\n duration: this.duration_,\n easing: easeOut,\n });\n } else {\n view.setZoom(newZoom);\n }\n }\n }\n}\n\nexport default Zoom;\n","/**\n * @module ol/control/FullScreen\n */\nimport Control from './Control.js';\nimport EventType from '../events/EventType.js';\nimport {CLASS_CONTROL, CLASS_UNSELECTABLE, CLASS_UNSUPPORTED} from '../css.js';\nimport {listen} from '../events.js';\nimport {replaceNode} from '../dom.js';\n\nconst events = [\n 'fullscreenchange',\n 'webkitfullscreenchange',\n 'MSFullscreenChange',\n];\n\n/**\n * @enum {string}\n */\nconst FullScreenEventType = {\n /**\n * Triggered after the map entered fullscreen.\n * @event FullScreenEventType#enterfullscreen\n * @api\n */\n ENTERFULLSCREEN: 'enterfullscreen',\n\n /**\n * Triggered after the map leave fullscreen.\n * @event FullScreenEventType#leavefullscreen\n * @api\n */\n LEAVEFULLSCREEN: 'leavefullscreen',\n};\n\n/**\n * @typedef {Object} Options\n * @property {string} [className='ol-full-screen'] CSS class name.\n * @property {string|Text} [label='\\u2922'] Text label to use for the button.\n * Instead of text, also an element (e.g. a `span` element) can be used.\n * @property {string|Text} [labelActive='\\u00d7'] Text label to use for the\n * button when full-screen is active.\n * Instead of text, also an element (e.g. a `span` element) can be used.\n * @property {string} [tipLabel='Toggle full-screen'] Text label to use for the button tip.\n * @property {boolean} [keys=false] Full keyboard access.\n * @property {HTMLElement|string} [target] Specify a target if you want the\n * control to be rendered outside of the map's viewport.\n * @property {HTMLElement|string} [source] The element to be displayed\n * fullscreen. When not provided, the element containing the map viewport will\n * be displayed fullscreen.\n */\n\n/**\n * @classdesc\n * Provides a button that when clicked fills up the full screen with the map.\n * The full screen source element is by default the element containing the map viewport unless\n * overridden by providing the `source` option. In which case, the dom\n * element introduced using this parameter will be displayed in full screen.\n *\n * When in full screen mode, a close button is shown to exit full screen mode.\n * The [Fullscreen API](http://www.w3.org/TR/fullscreen/) is used to\n * toggle the map in full screen mode.\n *\n * @fires FullScreenEventType#enterfullscreen\n * @fires FullScreenEventType#leavefullscreen\n * @api\n */\nclass FullScreen extends Control {\n /**\n * @param {Options=} opt_options Options.\n */\n constructor(opt_options) {\n const options = opt_options ? opt_options : {};\n\n super({\n element: document.createElement('div'),\n target: options.target,\n });\n\n /**\n * @private\n * @type {string}\n */\n this.cssClassName_ =\n options.className !== undefined ? options.className : 'ol-full-screen';\n\n const label = options.label !== undefined ? options.label : '\\u2922';\n\n /**\n * @private\n * @type {Text}\n */\n this.labelNode_ =\n typeof label === 'string' ? document.createTextNode(label) : label;\n\n const labelActive =\n options.labelActive !== undefined ? options.labelActive : '\\u00d7';\n\n /**\n * @private\n * @type {Text}\n */\n this.labelActiveNode_ =\n typeof labelActive === 'string'\n ? document.createTextNode(labelActive)\n : labelActive;\n\n /**\n * @private\n * @type {HTMLElement}\n */\n this.button_ = document.createElement('button');\n\n const tipLabel = options.tipLabel ? options.tipLabel : 'Toggle full-screen';\n this.setClassName_(this.button_, isFullScreen());\n this.button_.setAttribute('type', 'button');\n this.button_.title = tipLabel;\n this.button_.appendChild(this.labelNode_);\n\n this.button_.addEventListener(\n EventType.CLICK,\n this.handleClick_.bind(this),\n false\n );\n\n const cssClasses =\n this.cssClassName_ +\n ' ' +\n CLASS_UNSELECTABLE +\n ' ' +\n CLASS_CONTROL +\n ' ' +\n (!isFullScreenSupported() ? CLASS_UNSUPPORTED : '');\n const element = this.element;\n element.className = cssClasses;\n element.appendChild(this.button_);\n\n /**\n * @private\n * @type {boolean}\n */\n this.keys_ = options.keys !== undefined ? options.keys : false;\n\n /**\n * @private\n * @type {HTMLElement|string|undefined}\n */\n this.source_ = options.source;\n }\n\n /**\n * @param {MouseEvent} event The event to handle\n * @private\n */\n handleClick_(event) {\n event.preventDefault();\n this.handleFullScreen_();\n }\n\n /**\n * @private\n */\n handleFullScreen_() {\n if (!isFullScreenSupported()) {\n return;\n }\n const map = this.getMap();\n if (!map) {\n return;\n }\n if (isFullScreen()) {\n exitFullScreen();\n } else {\n let element;\n if (this.source_) {\n element =\n typeof this.source_ === 'string'\n ? document.getElementById(this.source_)\n : this.source_;\n } else {\n element = map.getTargetElement();\n }\n if (this.keys_) {\n requestFullScreenWithKeys(element);\n } else {\n requestFullScreen(element);\n }\n }\n }\n\n /**\n * @private\n */\n handleFullScreenChange_() {\n const map = this.getMap();\n if (isFullScreen()) {\n this.setClassName_(this.button_, true);\n replaceNode(this.labelActiveNode_, this.labelNode_);\n this.dispatchEvent(FullScreenEventType.ENTERFULLSCREEN);\n } else {\n this.setClassName_(this.button_, false);\n replaceNode(this.labelNode_, this.labelActiveNode_);\n this.dispatchEvent(FullScreenEventType.LEAVEFULLSCREEN);\n }\n if (map) {\n map.updateSize();\n }\n }\n\n /**\n * @param {HTMLElement} element Target element\n * @param {boolean} fullscreen True if fullscreen class name should be active\n * @private\n */\n setClassName_(element, fullscreen) {\n const activeClassName = this.cssClassName_ + '-true';\n const inactiveClassName = this.cssClassName_ + '-false';\n const nextClassName = fullscreen ? activeClassName : inactiveClassName;\n element.classList.remove(activeClassName);\n element.classList.remove(inactiveClassName);\n element.classList.add(nextClassName);\n }\n\n /**\n * Remove the control from its current map and attach it to the new map.\n * Subclasses may set up event handlers to get notified about changes to\n * the map here.\n * @param {import(\"../PluggableMap.js\").default} map Map.\n * @api\n */\n setMap(map) {\n super.setMap(map);\n if (map) {\n for (let i = 0, ii = events.length; i < ii; ++i) {\n this.listenerKeys.push(\n listen(document, events[i], this.handleFullScreenChange_, this)\n );\n }\n }\n }\n}\n\n/**\n * @return {boolean} Fullscreen is supported by the current platform.\n */\nfunction isFullScreenSupported() {\n const body = document.body;\n return !!(\n body['webkitRequestFullscreen'] ||\n (body['msRequestFullscreen'] && document['msFullscreenEnabled']) ||\n (body.requestFullscreen && document.fullscreenEnabled)\n );\n}\n\n/**\n * @return {boolean} Element is currently in fullscreen.\n */\nfunction isFullScreen() {\n return !!(\n document['webkitIsFullScreen'] ||\n document['msFullscreenElement'] ||\n document.fullscreenElement\n );\n}\n\n/**\n * Request to fullscreen an element.\n * @param {HTMLElement} element Element to request fullscreen\n */\nfunction requestFullScreen(element) {\n if (element.requestFullscreen) {\n element.requestFullscreen();\n } else if (element['msRequestFullscreen']) {\n element['msRequestFullscreen']();\n } else if (element['webkitRequestFullscreen']) {\n element['webkitRequestFullscreen']();\n }\n}\n\n/**\n * Request to fullscreen an element with keyboard input.\n * @param {HTMLElement} element Element to request fullscreen\n */\nfunction requestFullScreenWithKeys(element) {\n if (element['webkitRequestFullscreen']) {\n element['webkitRequestFullscreen']();\n } else {\n requestFullScreen(element);\n }\n}\n\n/**\n * Exit fullscreen.\n */\nfunction exitFullScreen() {\n if (document.exitFullscreen) {\n document.exitFullscreen();\n } else if (document['msExitFullscreen']) {\n document['msExitFullscreen']();\n } else if (document['webkitExitFullscreen']) {\n document['webkitExitFullscreen']();\n }\n}\n\nexport default FullScreen;\n","/**\n * @module ol/control/MousePosition\n */\n\nimport Control from './Control.js';\nimport EventType from '../pointer/EventType.js';\nimport {getChangeEventType} from '../Object.js';\nimport {\n get as getProjection,\n getTransformFromProjections,\n getUserProjection,\n identityTransform,\n} from '../proj.js';\nimport {listen} from '../events.js';\n\n/**\n * @type {string}\n */\nconst PROJECTION = 'projection';\n\n/**\n * @type {string}\n */\nconst COORDINATE_FORMAT = 'coordinateFormat';\n\n/**\n * @typedef {Object} Options\n * @property {string} [className='ol-mouse-position'] CSS class name.\n * @property {import(\"../coordinate.js\").CoordinateFormat} [coordinateFormat] Coordinate format.\n * @property {import(\"../proj.js\").ProjectionLike} [projection] Projection. Default is the view projection.\n * @property {function(import(\"../MapEvent.js\").default):void} [render] Function called when the\n * control should be re-rendered. This is called in a `requestAnimationFrame`\n * callback.\n * @property {HTMLElement|string} [target] Specify a target if you want the\n * control to be rendered outside of the map's viewport.\n * @property {string} [undefinedHTML=' '] Markup to show when coordinates are not\n * available (e.g. when the pointer leaves the map viewport). By default, the last position\n * will be replaced with `' '` (` `) when the pointer leaves the viewport. To\n * retain the last rendered position, set this option to something falsey (like an empty\n * string `''`).\n */\n\n/**\n * @classdesc\n * A control to show the 2D coordinates of the mouse cursor. By default, these\n * are in the view projection, but can be in any supported projection.\n * By default the control is shown in the top right corner of the map, but this\n * can be changed by using the css selector `.ol-mouse-position`.\n *\n * On touch devices, which usually do not have a mouse cursor, the coordinates\n * of the currently touched position are shown.\n *\n * @api\n */\nclass MousePosition extends Control {\n /**\n * @param {Options=} opt_options Mouse position options.\n */\n constructor(opt_options) {\n const options = opt_options ? opt_options : {};\n\n const element = document.createElement('div');\n element.className =\n options.className !== undefined ? options.className : 'ol-mouse-position';\n\n super({\n element: element,\n render: options.render,\n target: options.target,\n });\n\n this.addEventListener(\n getChangeEventType(PROJECTION),\n this.handleProjectionChanged_\n );\n\n if (options.coordinateFormat) {\n this.setCoordinateFormat(options.coordinateFormat);\n }\n if (options.projection) {\n this.setProjection(options.projection);\n }\n\n /**\n * @private\n * @type {string}\n */\n this.undefinedHTML_ =\n options.undefinedHTML !== undefined ? options.undefinedHTML : ' ';\n\n /**\n * @private\n * @type {boolean}\n */\n this.renderOnMouseOut_ = !!this.undefinedHTML_;\n\n /**\n * @private\n * @type {string}\n */\n this.renderedHTML_ = element.innerHTML;\n\n /**\n * @private\n * @type {?import(\"../proj/Projection.js\").default}\n */\n this.mapProjection_ = null;\n\n /**\n * @private\n * @type {?import(\"../proj.js\").TransformFunction}\n */\n this.transform_ = null;\n }\n\n /**\n * @private\n */\n handleProjectionChanged_() {\n this.transform_ = null;\n }\n\n /**\n * Return the coordinate format type used to render the current position or\n * undefined.\n * @return {import(\"../coordinate.js\").CoordinateFormat|undefined} The format to render the current\n * position in.\n * @observable\n * @api\n */\n getCoordinateFormat() {\n return /** @type {import(\"../coordinate.js\").CoordinateFormat|undefined} */ (this.get(\n COORDINATE_FORMAT\n ));\n }\n\n /**\n * Return the projection that is used to report the mouse position.\n * @return {import(\"../proj/Projection.js\").default|undefined} The projection to report mouse\n * position in.\n * @observable\n * @api\n */\n getProjection() {\n return /** @type {import(\"../proj/Projection.js\").default|undefined} */ (this.get(\n PROJECTION\n ));\n }\n\n /**\n * @param {MouseEvent} event Browser event.\n * @protected\n */\n handleMouseMove(event) {\n const map = this.getMap();\n this.updateHTML_(map.getEventPixel(event));\n }\n\n /**\n * @param {Event} event Browser event.\n * @protected\n */\n handleMouseOut(event) {\n this.updateHTML_(null);\n }\n\n /**\n * Remove the control from its current map and attach it to the new map.\n * Subclasses may set up event handlers to get notified about changes to\n * the map here.\n * @param {import(\"../PluggableMap.js\").default} map Map.\n * @api\n */\n setMap(map) {\n super.setMap(map);\n if (map) {\n const viewport = map.getViewport();\n this.listenerKeys.push(\n listen(viewport, EventType.POINTERMOVE, this.handleMouseMove, this)\n );\n if (this.renderOnMouseOut_) {\n this.listenerKeys.push(\n listen(viewport, EventType.POINTEROUT, this.handleMouseOut, this)\n );\n }\n }\n }\n\n /**\n * Set the coordinate format type used to render the current position.\n * @param {import(\"../coordinate.js\").CoordinateFormat} format The format to render the current\n * position in.\n * @observable\n * @api\n */\n setCoordinateFormat(format) {\n this.set(COORDINATE_FORMAT, format);\n }\n\n /**\n * Set the projection that is used to report the mouse position.\n * @param {import(\"../proj.js\").ProjectionLike} projection The projection to report mouse\n * position in.\n * @observable\n * @api\n */\n setProjection(projection) {\n this.set(PROJECTION, getProjection(projection));\n }\n\n /**\n * @param {?import(\"../pixel.js\").Pixel} pixel Pixel.\n * @private\n */\n updateHTML_(pixel) {\n let html = this.undefinedHTML_;\n if (pixel && this.mapProjection_) {\n if (!this.transform_) {\n const projection = this.getProjection();\n if (projection) {\n this.transform_ = getTransformFromProjections(\n this.mapProjection_,\n projection\n );\n } else {\n this.transform_ = identityTransform;\n }\n }\n const map = this.getMap();\n const coordinate = map.getCoordinateFromPixelInternal(pixel);\n if (coordinate) {\n const userProjection = getUserProjection();\n if (userProjection) {\n this.transform_ = getTransformFromProjections(\n this.mapProjection_,\n userProjection\n );\n }\n this.transform_(coordinate, coordinate);\n const coordinateFormat = this.getCoordinateFormat();\n if (coordinateFormat) {\n html = coordinateFormat(coordinate);\n } else {\n html = coordinate.toString();\n }\n }\n }\n if (!this.renderedHTML_ || html !== this.renderedHTML_) {\n this.element.innerHTML = html;\n this.renderedHTML_ = html;\n }\n }\n\n /**\n * Update the projection. Rendering of the coordinates is done in\n * `handleMouseMove` and `handleMouseUp`.\n * @param {import(\"../MapEvent.js\").default} mapEvent Map event.\n * @override\n */\n render(mapEvent) {\n const frameState = mapEvent.frameState;\n if (!frameState) {\n this.mapProjection_ = null;\n } else {\n if (this.mapProjection_ != frameState.viewState.projection) {\n this.mapProjection_ = frameState.viewState.projection;\n this.transform_ = null;\n }\n }\n }\n}\n\nexport default MousePosition;\n","/**\n * @module ol/OverlayPositioning\n */\n\n/**\n * Overlay position: `'bottom-left'`, `'bottom-center'`, `'bottom-right'`,\n * `'center-left'`, `'center-center'`, `'center-right'`, `'top-left'`,\n * `'top-center'`, `'top-right'`\n * @enum {string}\n */\nexport default {\n BOTTOM_LEFT: 'bottom-left',\n BOTTOM_CENTER: 'bottom-center',\n BOTTOM_RIGHT: 'bottom-right',\n CENTER_LEFT: 'center-left',\n CENTER_CENTER: 'center-center',\n CENTER_RIGHT: 'center-right',\n TOP_LEFT: 'top-left',\n TOP_CENTER: 'top-center',\n TOP_RIGHT: 'top-right',\n};\n","/**\n * @module ol/Overlay\n */\nimport BaseObject, {getChangeEventType} from './Object.js';\nimport MapEventType from './MapEventType.js';\nimport OverlayPositioning from './OverlayPositioning.js';\nimport {CLASS_SELECTABLE} from './css.js';\nimport {containsExtent} from './extent.js';\nimport {listen, unlistenByKey} from './events.js';\nimport {outerHeight, outerWidth, removeChildren, removeNode} from './dom.js';\n\n/**\n * @typedef {Object} Options\n * @property {number|string} [id] Set the overlay id. The overlay id can be used\n * with the {@link module:ol/Map~Map#getOverlayById} method.\n * @property {HTMLElement} [element] The overlay element.\n * @property {Array<number>} [offset=[0, 0]] Offsets in pixels used when positioning\n * the overlay. The first element in the\n * array is the horizontal offset. A positive value shifts the overlay right.\n * The second element in the array is the vertical offset. A positive value\n * shifts the overlay down.\n * @property {import(\"./coordinate.js\").Coordinate} [position] The overlay position\n * in map projection.\n * @property {import(\"./OverlayPositioning.js\").default} [positioning='top-left'] Defines how\n * the overlay is actually positioned with respect to its `position` property.\n * Possible values are `'bottom-left'`, `'bottom-center'`, `'bottom-right'`,\n * `'center-left'`, `'center-center'`, `'center-right'`, `'top-left'`,\n * `'top-center'`, and `'top-right'`.\n * @property {boolean} [stopEvent=true] Whether event propagation to the map\n * viewport should be stopped. If `true` the overlay is placed in the same\n * container as that of the controls (CSS class name\n * `ol-overlaycontainer-stopevent`); if `false` it is placed in the container\n * with CSS class name specified by the `className` property.\n * @property {boolean} [insertFirst=true] Whether the overlay is inserted first\n * in the overlay container, or appended. If the overlay is placed in the same\n * container as that of the controls (see the `stopEvent` option) you will\n * probably set `insertFirst` to `true` so the overlay is displayed below the\n * controls.\n * @property {PanIntoViewOptions|boolean} [autoPan=false] Pan the map when calling\n * `setPosition`, so that the overlay is entirely visible in the current viewport?\n * If `true` (deprecated), then `autoPanAnimation` and `autoPanMargin` will be\n * used to determine the panning parameters; if an object is supplied then other\n * parameters are ignored.\n * @property {PanOptions} [autoPanAnimation] The animation options used to pan\n * the overlay into view. This animation is only used when `autoPan` is enabled.\n * A `duration` and `easing` may be provided to customize the animation.\n * Deprecated and ignored if `autoPan` is supplied as an object.\n * @property {number} [autoPanMargin=20] The margin (in pixels) between the\n * overlay and the borders of the map when autopanning. Deprecated and ignored\n * if `autoPan` is supplied as an object.\n * @property {PanIntoViewOptions} [autoPanOptions] The options to use for the\n * autoPan. This is only used when `autoPan` is enabled and has preference over\n * the individual `autoPanMargin` and `autoPanOptions`.\n * @property {string} [className='ol-overlay-container ol-selectable'] CSS class\n * name.\n */\n\n/**\n * @typedef {Object} PanOptions\n * @property {number} [duration=1000] The duration of the animation in\n * milliseconds.\n * @property {function(number):number} [easing] The easing function to use. Can\n * be one from {@link module:ol/easing} or a custom function.\n * Default is {@link module:ol/easing~inAndOut}.\n */\n\n/**\n * @typedef {Object} PanIntoViewOptions\n * @property {PanOptions} [animation={}] The animation parameters for the pan\n * @property {number} [margin=20] The margin (in pixels) between the\n * overlay and the borders of the map when panning into view.\n */\n\n/**\n * @enum {string}\n * @protected\n */\nconst Property = {\n ELEMENT: 'element',\n MAP: 'map',\n OFFSET: 'offset',\n POSITION: 'position',\n POSITIONING: 'positioning',\n};\n\n/**\n * @classdesc\n * An element to be displayed over the map and attached to a single map\n * location. Like {@link module:ol/control/Control~Control}, Overlays are\n * visible widgets. Unlike Controls, they are not in a fixed position on the\n * screen, but are tied to a geographical coordinate, so panning the map will\n * move an Overlay but not a Control.\n *\n * Example:\n *\n * import Overlay from 'ol/Overlay';\n *\n * var popup = new Overlay({\n * element: document.getElementById('popup')\n * });\n * popup.setPosition(coordinate);\n * map.addOverlay(popup);\n *\n * @api\n */\nclass Overlay extends BaseObject {\n /**\n * @param {Options} options Overlay options.\n */\n constructor(options) {\n super();\n\n /**\n * @protected\n * @type {Options}\n */\n this.options = options;\n\n /**\n * @protected\n * @type {number|string|undefined}\n */\n this.id = options.id;\n\n /**\n * @protected\n * @type {boolean}\n */\n this.insertFirst =\n options.insertFirst !== undefined ? options.insertFirst : true;\n\n /**\n * @protected\n * @type {boolean}\n */\n this.stopEvent = options.stopEvent !== undefined ? options.stopEvent : true;\n\n /**\n * @protected\n * @type {HTMLElement}\n */\n this.element = document.createElement('div');\n this.element.className =\n options.className !== undefined\n ? options.className\n : 'ol-overlay-container ' + CLASS_SELECTABLE;\n this.element.style.position = 'absolute';\n this.element.style.pointerEvents = 'auto';\n\n let autoPan = options.autoPan;\n if (autoPan && 'object' !== typeof autoPan) {\n autoPan = {\n animation: options.autoPanAnimation,\n margin: options.autoPanMargin,\n };\n }\n /**\n * @protected\n * @type {PanIntoViewOptions|false}\n */\n this.autoPan = /** @type {PanIntoViewOptions} */ (autoPan) || false;\n\n /**\n * @protected\n * @type {{transform_: string,\n * visible: boolean}}\n */\n this.rendered = {\n transform_: '',\n visible: true,\n };\n\n /**\n * @protected\n * @type {?import(\"./events.js\").EventsKey}\n */\n this.mapPostrenderListenerKey = null;\n\n this.addEventListener(\n getChangeEventType(Property.ELEMENT),\n this.handleElementChanged\n );\n this.addEventListener(\n getChangeEventType(Property.MAP),\n this.handleMapChanged\n );\n this.addEventListener(\n getChangeEventType(Property.OFFSET),\n this.handleOffsetChanged\n );\n this.addEventListener(\n getChangeEventType(Property.POSITION),\n this.handlePositionChanged\n );\n this.addEventListener(\n getChangeEventType(Property.POSITIONING),\n this.handlePositioningChanged\n );\n\n if (options.element !== undefined) {\n this.setElement(options.element);\n }\n\n this.setOffset(options.offset !== undefined ? options.offset : [0, 0]);\n\n this.setPositioning(\n options.positioning !== undefined\n ? /** @type {import(\"./OverlayPositioning.js\").default} */ (options.positioning)\n : OverlayPositioning.TOP_LEFT\n );\n\n if (options.position !== undefined) {\n this.setPosition(options.position);\n }\n }\n\n /**\n * Get the DOM element of this overlay.\n * @return {HTMLElement|undefined} The Element containing the overlay.\n * @observable\n * @api\n */\n getElement() {\n return /** @type {HTMLElement|undefined} */ (this.get(Property.ELEMENT));\n }\n\n /**\n * Get the overlay identifier which is set on constructor.\n * @return {number|string|undefined} Id.\n * @api\n */\n getId() {\n return this.id;\n }\n\n /**\n * Get the map associated with this overlay.\n * @return {import(\"./PluggableMap.js\").default|undefined} The map that the\n * overlay is part of.\n * @observable\n * @api\n */\n getMap() {\n return /** @type {import(\"./PluggableMap.js\").default|undefined} */ (this.get(\n Property.MAP\n ));\n }\n\n /**\n * Get the offset of this overlay.\n * @return {Array<number>} The offset.\n * @observable\n * @api\n */\n getOffset() {\n return /** @type {Array<number>} */ (this.get(Property.OFFSET));\n }\n\n /**\n * Get the current position of this overlay.\n * @return {import(\"./coordinate.js\").Coordinate|undefined} The spatial point that the overlay is\n * anchored at.\n * @observable\n * @api\n */\n getPosition() {\n return /** @type {import(\"./coordinate.js\").Coordinate|undefined} */ (this.get(\n Property.POSITION\n ));\n }\n\n /**\n * Get the current positioning of this overlay.\n * @return {import(\"./OverlayPositioning.js\").default} How the overlay is positioned\n * relative to its point on the map.\n * @observable\n * @api\n */\n getPositioning() {\n return /** @type {import(\"./OverlayPositioning.js\").default} */ (this.get(\n Property.POSITIONING\n ));\n }\n\n /**\n * @protected\n */\n handleElementChanged() {\n removeChildren(this.element);\n const element = this.getElement();\n if (element) {\n this.element.appendChild(element);\n }\n }\n\n /**\n * @protected\n */\n handleMapChanged() {\n if (this.mapPostrenderListenerKey) {\n removeNode(this.element);\n unlistenByKey(this.mapPostrenderListenerKey);\n this.mapPostrenderListenerKey = null;\n }\n const map = this.getMap();\n if (map) {\n this.mapPostrenderListenerKey = listen(\n map,\n MapEventType.POSTRENDER,\n this.render,\n this\n );\n this.updatePixelPosition();\n const container = this.stopEvent\n ? map.getOverlayContainerStopEvent()\n : map.getOverlayContainer();\n if (this.insertFirst) {\n container.insertBefore(this.element, container.childNodes[0] || null);\n } else {\n container.appendChild(this.element);\n }\n this.performAutoPan();\n }\n }\n\n /**\n * @protected\n */\n render() {\n this.updatePixelPosition();\n }\n\n /**\n * @protected\n */\n handleOffsetChanged() {\n this.updatePixelPosition();\n }\n\n /**\n * @protected\n */\n handlePositionChanged() {\n this.updatePixelPosition();\n this.performAutoPan();\n }\n\n /**\n * @protected\n */\n handlePositioningChanged() {\n this.updatePixelPosition();\n }\n\n /**\n * Set the DOM element to be associated with this overlay.\n * @param {HTMLElement|undefined} element The Element containing the overlay.\n * @observable\n * @api\n */\n setElement(element) {\n this.set(Property.ELEMENT, element);\n }\n\n /**\n * Set the map to be associated with this overlay.\n * @param {import(\"./PluggableMap.js\").default|undefined} map The map that the\n * overlay is part of.\n * @observable\n * @api\n */\n setMap(map) {\n this.set(Property.MAP, map);\n }\n\n /**\n * Set the offset for this overlay.\n * @param {Array<number>} offset Offset.\n * @observable\n * @api\n */\n setOffset(offset) {\n this.set(Property.OFFSET, offset);\n }\n\n /**\n * Set the position for this overlay. If the position is `undefined` the\n * overlay is hidden.\n * @param {import(\"./coordinate.js\").Coordinate|undefined} position The spatial point that the overlay\n * is anchored at.\n * @observable\n * @api\n */\n setPosition(position) {\n this.set(Property.POSITION, position);\n }\n\n /**\n * Pan the map so that the overlay is entirely visisble in the current viewport\n * (if necessary) using the configured autoPan parameters\n * @protected\n */\n performAutoPan() {\n if (this.autoPan) {\n this.panIntoView(this.autoPan);\n }\n }\n\n /**\n * Pan the map so that the overlay is entirely visible in the current viewport\n * (if necessary).\n * @param {PanIntoViewOptions=} opt_panIntoViewOptions Options for the pan action\n * @api\n */\n panIntoView(opt_panIntoViewOptions) {\n const map = this.getMap();\n\n if (!map || !map.getTargetElement() || !this.get(Property.POSITION)) {\n return;\n }\n\n const mapRect = this.getRect(map.getTargetElement(), map.getSize());\n const element = this.getElement();\n const overlayRect = this.getRect(element, [\n outerWidth(element),\n outerHeight(element),\n ]);\n\n const panIntoViewOptions = opt_panIntoViewOptions || {};\n\n const myMargin =\n panIntoViewOptions.margin === undefined ? 20 : panIntoViewOptions.margin;\n if (!containsExtent(mapRect, overlayRect)) {\n // the overlay is not completely inside the viewport, so pan the map\n const offsetLeft = overlayRect[0] - mapRect[0];\n const offsetRight = mapRect[2] - overlayRect[2];\n const offsetTop = overlayRect[1] - mapRect[1];\n const offsetBottom = mapRect[3] - overlayRect[3];\n\n const delta = [0, 0];\n if (offsetLeft < 0) {\n // move map to the left\n delta[0] = offsetLeft - myMargin;\n } else if (offsetRight < 0) {\n // move map to the right\n delta[0] = Math.abs(offsetRight) + myMargin;\n }\n if (offsetTop < 0) {\n // move map up\n delta[1] = offsetTop - myMargin;\n } else if (offsetBottom < 0) {\n // move map down\n delta[1] = Math.abs(offsetBottom) + myMargin;\n }\n\n if (delta[0] !== 0 || delta[1] !== 0) {\n const center = /** @type {import(\"./coordinate.js\").Coordinate} */ (map\n .getView()\n .getCenterInternal());\n const centerPx = map.getPixelFromCoordinateInternal(center);\n const newCenterPx = [centerPx[0] + delta[0], centerPx[1] + delta[1]];\n\n const panOptions = panIntoViewOptions.animation || {};\n map.getView().animateInternal({\n center: map.getCoordinateFromPixelInternal(newCenterPx),\n duration: panOptions.duration,\n easing: panOptions.easing,\n });\n }\n }\n }\n\n /**\n * Get the extent of an element relative to the document\n * @param {HTMLElement} element The element.\n * @param {import(\"./size.js\").Size} size The size of the element.\n * @return {import(\"./extent.js\").Extent} The extent.\n * @protected\n */\n getRect(element, size) {\n const box = element.getBoundingClientRect();\n const offsetX = box.left + window.pageXOffset;\n const offsetY = box.top + window.pageYOffset;\n return [offsetX, offsetY, offsetX + size[0], offsetY + size[1]];\n }\n\n /**\n * Set the positioning for this overlay.\n * @param {import(\"./OverlayPositioning.js\").default} positioning how the overlay is\n * positioned relative to its point on the map.\n * @observable\n * @api\n */\n setPositioning(positioning) {\n this.set(Property.POSITIONING, positioning);\n }\n\n /**\n * Modify the visibility of the element.\n * @param {boolean} visible Element visibility.\n * @protected\n */\n setVisible(visible) {\n if (this.rendered.visible !== visible) {\n this.element.style.display = visible ? '' : 'none';\n this.rendered.visible = visible;\n }\n }\n\n /**\n * Update pixel position.\n * @protected\n */\n updatePixelPosition() {\n const map = this.getMap();\n const position = this.getPosition();\n if (!map || !map.isRendered() || !position) {\n this.setVisible(false);\n return;\n }\n\n const pixel = map.getPixelFromCoordinate(position);\n const mapSize = map.getSize();\n this.updateRenderedPosition(pixel, mapSize);\n }\n\n /**\n * @param {import(\"./pixel.js\").Pixel} pixel The pixel location.\n * @param {import(\"./size.js\").Size|undefined} mapSize The map size.\n * @protected\n */\n updateRenderedPosition(pixel, mapSize) {\n const style = this.element.style;\n const offset = this.getOffset();\n\n const positioning = this.getPositioning();\n\n this.setVisible(true);\n\n const x = Math.round(pixel[0] + offset[0]) + 'px';\n const y = Math.round(pixel[1] + offset[1]) + 'px';\n let posX = '0%';\n let posY = '0%';\n if (\n positioning == OverlayPositioning.BOTTOM_RIGHT ||\n positioning == OverlayPositioning.CENTER_RIGHT ||\n positioning == OverlayPositioning.TOP_RIGHT\n ) {\n posX = '-100%';\n } else if (\n positioning == OverlayPositioning.BOTTOM_CENTER ||\n positioning == OverlayPositioning.CENTER_CENTER ||\n positioning == OverlayPositioning.TOP_CENTER\n ) {\n posX = '-50%';\n }\n if (\n positioning == OverlayPositioning.BOTTOM_LEFT ||\n positioning == OverlayPositioning.BOTTOM_CENTER ||\n positioning == OverlayPositioning.BOTTOM_RIGHT\n ) {\n posY = '-100%';\n } else if (\n positioning == OverlayPositioning.CENTER_LEFT ||\n positioning == OverlayPositioning.CENTER_CENTER ||\n positioning == OverlayPositioning.CENTER_RIGHT\n ) {\n posY = '-50%';\n }\n const transform = `translate(${posX}, ${posY}) translate(${x}, ${y})`;\n if (this.rendered.transform_ != transform) {\n this.rendered.transform_ = transform;\n style.transform = transform;\n // @ts-ignore IE9\n style.msTransform = transform;\n }\n }\n\n /**\n * returns the options this Overlay has been created with\n * @return {Options} overlay options\n */\n getOptions() {\n return this.options;\n }\n}\n\nexport default Overlay;\n","/**\n * @module ol/control/OverviewMap\n */\nimport CompositeMapRenderer from '../renderer/Composite.js';\nimport Control from './Control.js';\nimport EventType from '../events/EventType.js';\nimport MapEventType from '../MapEventType.js';\nimport MapProperty from '../MapProperty.js';\nimport ObjectEventType from '../ObjectEventType.js';\nimport Overlay from '../Overlay.js';\nimport OverlayPositioning from '../OverlayPositioning.js';\nimport PluggableMap from '../PluggableMap.js';\nimport View from '../View.js';\nimport ViewProperty from '../ViewProperty.js';\nimport {CLASS_COLLAPSED, CLASS_CONTROL, CLASS_UNSELECTABLE} from '../css.js';\nimport {\n containsExtent,\n equals as equalsExtent,\n getBottomRight,\n getTopLeft,\n scaleFromCenter,\n} from '../extent.js';\nimport {getChangeEventType} from '../Object.js';\nimport {listen, listenOnce} from '../events.js';\nimport {fromExtent as polygonFromExtent} from '../geom/Polygon.js';\nimport {replaceNode} from '../dom.js';\n\n/**\n * Maximum width and/or height extent ratio that determines when the overview\n * map should be zoomed out.\n * @type {number}\n */\nconst MAX_RATIO = 0.75;\n\n/**\n * Minimum width and/or height extent ratio that determines when the overview\n * map should be zoomed in.\n * @type {number}\n */\nconst MIN_RATIO = 0.1;\n\nclass ControlledMap extends PluggableMap {\n createRenderer() {\n return new CompositeMapRenderer(this);\n }\n}\n\n/**\n * @typedef {Object} Options\n * @property {string} [className='ol-overviewmap'] CSS class name.\n * @property {boolean} [collapsed=true] Whether the control should start collapsed or not (expanded).\n * @property {string|HTMLElement} [collapseLabel='«'] Text label to use for the\n * expanded overviewmap button. Instead of text, also an element (e.g. a `span` element) can be used.\n * @property {boolean} [collapsible=true] Whether the control can be collapsed or not.\n * @property {string|HTMLElement} [label='»'] Text label to use for the collapsed\n * overviewmap button. Instead of text, also an element (e.g. a `span` element) can be used.\n * @property {Array<import(\"../layer/Layer.js\").default>|import(\"../Collection.js\").default<import(\"../layer/Layer.js\").default>} [layers]\n * Layers for the overview map.\n * @property {function(import(\"../MapEvent.js\").default):void} [render] Function called when the control\n * should be re-rendered. This is called in a `requestAnimationFrame` callback.\n * @property {boolean} [rotateWithView=false] Whether the control view should rotate with the main map view.\n * @property {HTMLElement|string} [target] Specify a target if you want the control\n * to be rendered outside of the map's viewport.\n * @property {string} [tipLabel='Overview map'] Text label to use for the button tip.\n * @property {View} [view] Custom view for the overview map (should use same projection as main map). If not provided,\n * a default view with the same projection as the main map will be used.\n */\n\n/**\n * Create a new control with a map acting as an overview map for another\n * defined map.\n *\n * @api\n */\nclass OverviewMap extends Control {\n /**\n * @param {Options=} opt_options OverviewMap options.\n */\n constructor(opt_options) {\n const options = opt_options ? opt_options : {};\n\n super({\n element: document.createElement('div'),\n render: options.render,\n target: options.target,\n });\n\n /**\n * @private\n */\n this.boundHandleRotationChanged_ = this.handleRotationChanged_.bind(this);\n\n /**\n * @type {boolean}\n * @private\n */\n this.collapsed_ =\n options.collapsed !== undefined ? options.collapsed : true;\n\n /**\n * @private\n * @type {boolean}\n */\n this.collapsible_ =\n options.collapsible !== undefined ? options.collapsible : true;\n\n if (!this.collapsible_) {\n this.collapsed_ = false;\n }\n\n /**\n * @private\n * @type {boolean}\n */\n this.rotateWithView_ =\n options.rotateWithView !== undefined ? options.rotateWithView : false;\n\n /**\n * @private\n * @type {import(\"../extent.js\").Extent|undefined}\n */\n this.viewExtent_ = undefined;\n\n const className =\n options.className !== undefined ? options.className : 'ol-overviewmap';\n\n const tipLabel =\n options.tipLabel !== undefined ? options.tipLabel : 'Overview map';\n\n const collapseLabel =\n options.collapseLabel !== undefined ? options.collapseLabel : '\\u00AB';\n\n if (typeof collapseLabel === 'string') {\n /**\n * @private\n * @type {HTMLElement}\n */\n this.collapseLabel_ = document.createElement('span');\n this.collapseLabel_.textContent = collapseLabel;\n } else {\n this.collapseLabel_ = collapseLabel;\n }\n\n const label = options.label !== undefined ? options.label : '\\u00BB';\n\n if (typeof label === 'string') {\n /**\n * @private\n * @type {HTMLElement}\n */\n this.label_ = document.createElement('span');\n this.label_.textContent = label;\n } else {\n this.label_ = label;\n }\n\n const activeLabel =\n this.collapsible_ && !this.collapsed_ ? this.collapseLabel_ : this.label_;\n const button = document.createElement('button');\n button.setAttribute('type', 'button');\n button.title = tipLabel;\n button.appendChild(activeLabel);\n\n button.addEventListener(\n EventType.CLICK,\n this.handleClick_.bind(this),\n false\n );\n\n /**\n * @type {HTMLElement}\n * @private\n */\n this.ovmapDiv_ = document.createElement('div');\n this.ovmapDiv_.className = 'ol-overviewmap-map';\n\n /**\n * Explicitly given view to be used instead of a view derived from the main map.\n * @type {View}\n * @private\n */\n this.view_ = options.view;\n\n /**\n * @type {ControlledMap}\n * @private\n */\n this.ovmap_ = new ControlledMap({\n view: options.view,\n });\n const ovmap = this.ovmap_;\n\n if (options.layers) {\n options.layers.forEach(function (layer) {\n ovmap.addLayer(layer);\n });\n }\n\n const box = document.createElement('div');\n box.className = 'ol-overviewmap-box';\n box.style.boxSizing = 'border-box';\n\n /**\n * @type {import(\"../Overlay.js\").default}\n * @private\n */\n this.boxOverlay_ = new Overlay({\n position: [0, 0],\n positioning: OverlayPositioning.CENTER_CENTER,\n element: box,\n });\n this.ovmap_.addOverlay(this.boxOverlay_);\n\n const cssClasses =\n className +\n ' ' +\n CLASS_UNSELECTABLE +\n ' ' +\n CLASS_CONTROL +\n (this.collapsed_ && this.collapsible_ ? ' ' + CLASS_COLLAPSED : '') +\n (this.collapsible_ ? '' : ' ol-uncollapsible');\n const element = this.element;\n element.className = cssClasses;\n element.appendChild(this.ovmapDiv_);\n element.appendChild(button);\n\n /* Interactive map */\n\n const scope = this;\n\n const overlay = this.boxOverlay_;\n const overlayBox = this.boxOverlay_.getElement();\n\n /* Functions definition */\n\n const computeDesiredMousePosition = function (mousePosition) {\n return {\n clientX: mousePosition.clientX,\n clientY: mousePosition.clientY,\n };\n };\n\n const move = function (event) {\n const position = /** @type {?} */ (computeDesiredMousePosition(event));\n const coordinates = ovmap.getEventCoordinateInternal(\n /** @type {MouseEvent} */ (position)\n );\n\n overlay.setPosition(coordinates);\n };\n\n const endMoving = function (event) {\n const coordinates = ovmap.getEventCoordinateInternal(event);\n\n scope.getMap().getView().setCenterInternal(coordinates);\n\n window.removeEventListener('mousemove', move);\n window.removeEventListener('mouseup', endMoving);\n };\n\n /* Binding */\n\n overlayBox.addEventListener('mousedown', function () {\n window.addEventListener('mousemove', move);\n window.addEventListener('mouseup', endMoving);\n });\n }\n\n /**\n * Remove the control from its current map and attach it to the new map.\n * Subclasses may set up event handlers to get notified about changes to\n * the map here.\n * @param {import(\"../PluggableMap.js\").default} map Map.\n * @api\n */\n setMap(map) {\n const oldMap = this.getMap();\n if (map === oldMap) {\n return;\n }\n if (oldMap) {\n const oldView = oldMap.getView();\n if (oldView) {\n this.unbindView_(oldView);\n }\n this.ovmap_.setTarget(null);\n }\n super.setMap(map);\n\n if (map) {\n this.ovmap_.setTarget(this.ovmapDiv_);\n this.listenerKeys.push(\n listen(\n map,\n ObjectEventType.PROPERTYCHANGE,\n this.handleMapPropertyChange_,\n this\n )\n );\n\n const view = map.getView();\n if (view) {\n this.bindView_(view);\n if (view.isDef()) {\n this.ovmap_.updateSize();\n this.resetExtent_();\n }\n }\n }\n }\n\n /**\n * Handle map property changes. This only deals with changes to the map's view.\n * @param {import(\"../Object.js\").ObjectEvent} event The propertychange event.\n * @private\n */\n handleMapPropertyChange_(event) {\n if (event.key === MapProperty.VIEW) {\n const oldView = /** @type {import(\"../View.js\").default} */ (event.oldValue);\n if (oldView) {\n this.unbindView_(oldView);\n }\n const newView = this.getMap().getView();\n this.bindView_(newView);\n }\n }\n\n /**\n * Register listeners for view property changes.\n * @param {import(\"../View.js\").default} view The view.\n * @private\n */\n bindView_(view) {\n if (!this.view_) {\n // Unless an explicit view definition was given, derive default from whatever main map uses.\n const newView = new View({\n projection: view.getProjection(),\n });\n this.ovmap_.setView(newView);\n }\n\n view.addEventListener(\n getChangeEventType(ViewProperty.ROTATION),\n this.boundHandleRotationChanged_\n );\n // Sync once with the new view\n this.handleRotationChanged_();\n }\n\n /**\n * Unregister listeners for view property changes.\n * @param {import(\"../View.js\").default} view The view.\n * @private\n */\n unbindView_(view) {\n view.removeEventListener(\n getChangeEventType(ViewProperty.ROTATION),\n this.boundHandleRotationChanged_\n );\n }\n\n /**\n * Handle rotation changes to the main map.\n * @private\n */\n handleRotationChanged_() {\n if (this.rotateWithView_) {\n this.ovmap_.getView().setRotation(this.getMap().getView().getRotation());\n }\n }\n\n /**\n * Reset the overview map extent if the box size (width or\n * height) is less than the size of the overview map size times minRatio\n * or is greater than the size of the overview size times maxRatio.\n *\n * If the map extent was not reset, the box size can fits in the defined\n * ratio sizes. This method then checks if is contained inside the overview\n * map current extent. If not, recenter the overview map to the current\n * main map center location.\n * @private\n */\n validateExtent_() {\n const map = this.getMap();\n const ovmap = this.ovmap_;\n\n if (!map.isRendered() || !ovmap.isRendered()) {\n return;\n }\n\n const mapSize = /** @type {import(\"../size.js\").Size} */ (map.getSize());\n\n const view = map.getView();\n const extent = view.calculateExtentInternal(mapSize);\n\n if (this.viewExtent_ && equalsExtent(extent, this.viewExtent_)) {\n // repeats of the same extent may indicate constraint conflicts leading to an endless cycle\n return;\n }\n this.viewExtent_ = extent;\n\n const ovmapSize = /** @type {import(\"../size.js\").Size} */ (ovmap.getSize());\n\n const ovview = ovmap.getView();\n const ovextent = ovview.calculateExtentInternal(ovmapSize);\n\n const topLeftPixel = ovmap.getPixelFromCoordinateInternal(\n getTopLeft(extent)\n );\n const bottomRightPixel = ovmap.getPixelFromCoordinateInternal(\n getBottomRight(extent)\n );\n\n const boxWidth = Math.abs(topLeftPixel[0] - bottomRightPixel[0]);\n const boxHeight = Math.abs(topLeftPixel[1] - bottomRightPixel[1]);\n\n const ovmapWidth = ovmapSize[0];\n const ovmapHeight = ovmapSize[1];\n\n if (\n boxWidth < ovmapWidth * MIN_RATIO ||\n boxHeight < ovmapHeight * MIN_RATIO ||\n boxWidth > ovmapWidth * MAX_RATIO ||\n boxHeight > ovmapHeight * MAX_RATIO\n ) {\n this.resetExtent_();\n } else if (!containsExtent(ovextent, extent)) {\n this.recenter_();\n }\n }\n\n /**\n * Reset the overview map extent to half calculated min and max ratio times\n * the extent of the main map.\n * @private\n */\n resetExtent_() {\n if (MAX_RATIO === 0 || MIN_RATIO === 0) {\n return;\n }\n\n const map = this.getMap();\n const ovmap = this.ovmap_;\n\n const mapSize = /** @type {import(\"../size.js\").Size} */ (map.getSize());\n\n const view = map.getView();\n const extent = view.calculateExtentInternal(mapSize);\n\n const ovview = ovmap.getView();\n\n // get how many times the current map overview could hold different\n // box sizes using the min and max ratio, pick the step in the middle used\n // to calculate the extent from the main map to set it to the overview map,\n const steps = Math.log(MAX_RATIO / MIN_RATIO) / Math.LN2;\n const ratio = 1 / (Math.pow(2, steps / 2) * MIN_RATIO);\n scaleFromCenter(extent, ratio);\n ovview.fitInternal(polygonFromExtent(extent));\n }\n\n /**\n * Set the center of the overview map to the map center without changing its\n * resolution.\n * @private\n */\n recenter_() {\n const map = this.getMap();\n const ovmap = this.ovmap_;\n\n const view = map.getView();\n\n const ovview = ovmap.getView();\n\n ovview.setCenterInternal(view.getCenterInternal());\n }\n\n /**\n * Update the box using the main map extent\n * @private\n */\n updateBox_() {\n const map = this.getMap();\n const ovmap = this.ovmap_;\n\n if (!map.isRendered() || !ovmap.isRendered()) {\n return;\n }\n\n const mapSize = /** @type {import(\"../size.js\").Size} */ (map.getSize());\n\n const view = map.getView();\n\n const ovview = ovmap.getView();\n\n const rotation = this.rotateWithView_ ? 0 : -view.getRotation();\n\n const overlay = this.boxOverlay_;\n const box = this.boxOverlay_.getElement();\n const center = view.getCenterInternal();\n const resolution = view.getResolution();\n const ovresolution = ovview.getResolution();\n const width = (mapSize[0] * resolution) / ovresolution;\n const height = (mapSize[1] * resolution) / ovresolution;\n\n // set position using center coordinates\n overlay.setPosition(center);\n\n // set box size calculated from map extent size and overview map resolution\n if (box) {\n box.style.width = width + 'px';\n box.style.height = height + 'px';\n const transform = 'rotate(' + rotation + 'rad)';\n box.style.transform = transform;\n }\n }\n\n /**\n * @param {MouseEvent} event The event to handle\n * @private\n */\n handleClick_(event) {\n event.preventDefault();\n this.handleToggle_();\n }\n\n /**\n * @private\n */\n handleToggle_() {\n this.element.classList.toggle(CLASS_COLLAPSED);\n if (this.collapsed_) {\n replaceNode(this.collapseLabel_, this.label_);\n } else {\n replaceNode(this.label_, this.collapseLabel_);\n }\n this.collapsed_ = !this.collapsed_;\n\n // manage overview map if it had not been rendered before and control\n // is expanded\n const ovmap = this.ovmap_;\n if (!this.collapsed_) {\n if (ovmap.isRendered()) {\n this.viewExtent_ = undefined;\n ovmap.render();\n return;\n }\n ovmap.updateSize();\n this.resetExtent_();\n listenOnce(\n ovmap,\n MapEventType.POSTRENDER,\n function (event) {\n this.updateBox_();\n },\n this\n );\n }\n }\n\n /**\n * Return `true` if the overview map is collapsible, `false` otherwise.\n * @return {boolean} True if the widget is collapsible.\n * @api\n */\n getCollapsible() {\n return this.collapsible_;\n }\n\n /**\n * Set whether the overview map should be collapsible.\n * @param {boolean} collapsible True if the widget is collapsible.\n * @api\n */\n setCollapsible(collapsible) {\n if (this.collapsible_ === collapsible) {\n return;\n }\n this.collapsible_ = collapsible;\n this.element.classList.toggle('ol-uncollapsible');\n if (!collapsible && this.collapsed_) {\n this.handleToggle_();\n }\n }\n\n /**\n * Collapse or expand the overview map according to the passed parameter. Will\n * not do anything if the overview map isn't collapsible or if the current\n * collapsed state is already the one requested.\n * @param {boolean} collapsed True if the widget is collapsed.\n * @api\n */\n setCollapsed(collapsed) {\n if (!this.collapsible_ || this.collapsed_ === collapsed) {\n return;\n }\n this.handleToggle_();\n }\n\n /**\n * Determine if the overview map is collapsed.\n * @return {boolean} The overview map is collapsed.\n * @api\n */\n getCollapsed() {\n return this.collapsed_;\n }\n\n /**\n * Return `true` if the overview map view can rotate, `false` otherwise.\n * @return {boolean} True if the control view can rotate.\n * @api\n */\n getRotateWithView() {\n return this.rotateWithView_;\n }\n\n /**\n * Set whether the overview map view should rotate with the main map view.\n * @param {boolean} rotateWithView True if the control view should rotate.\n * @api\n */\n setRotateWithView(rotateWithView) {\n if (this.rotateWithView_ === rotateWithView) {\n return;\n }\n this.rotateWithView_ = rotateWithView;\n if (this.getMap().getView().getRotation() !== 0) {\n if (this.rotateWithView_) {\n this.handleRotationChanged_();\n } else {\n this.ovmap_.getView().setRotation(0);\n }\n this.viewExtent_ = undefined;\n this.validateExtent_();\n this.updateBox_();\n }\n }\n\n /**\n * Return the overview map.\n * @return {import(\"../PluggableMap.js\").default} Overview map.\n * @api\n */\n getOverviewMap() {\n return this.ovmap_;\n }\n\n /**\n * Update the overview map element.\n * @param {import(\"../MapEvent.js\").default} mapEvent Map event.\n * @override\n */\n render(mapEvent) {\n this.validateExtent_();\n this.updateBox_();\n }\n}\n\nexport default OverviewMap;\n","/**\n * @module ol/control/ScaleLine\n */\nimport Control from './Control.js';\nimport ProjUnits from '../proj/Units.js';\nimport {CLASS_UNSELECTABLE} from '../css.js';\nimport {METERS_PER_UNIT, getPointResolution} from '../proj.js';\nimport {assert} from '../asserts.js';\nimport {getChangeEventType} from '../Object.js';\n\n/**\n * @type {string}\n */\nconst UNITS_PROP = 'units';\n\n/**\n * Units for the scale line. Supported values are `'degrees'`, `'imperial'`,\n * `'nautical'`, `'metric'`, `'us'`.\n * @enum {string}\n */\nexport const Units = {\n DEGREES: 'degrees',\n IMPERIAL: 'imperial',\n NAUTICAL: 'nautical',\n METRIC: 'metric',\n US: 'us',\n};\n\n/**\n * @const\n * @type {Array<number>}\n */\nconst LEADING_DIGITS = [1, 2, 5];\n\n/**\n * @const\n * @type {number}\n */\nconst DEFAULT_DPI = 25.4 / 0.28;\n\n/**\n * @typedef {Object} Options\n * @property {string} [className='ol-scale-line'] CSS Class name.\n * @property {number} [minWidth=64] Minimum width in pixels at the OGC default dpi. The width will be\n * adjusted to match the dpi used.\n * @property {function(import(\"../MapEvent.js\").default):void} [render] Function called when the control\n * should be re-rendered. This is called in a `requestAnimationFrame` callback.\n * @property {HTMLElement|string} [target] Specify a target if you want the control\n * to be rendered outside of the map's viewport.\n * @property {import(\"./ScaleLine.js\").Units|string} [units='metric'] Units.\n * @property {boolean} [bar=false] Render scalebars instead of a line.\n * @property {number} [steps=4] Number of steps the scalebar should use. Use even numbers\n * for best results. Only applies when `bar` is `true`.\n * @property {boolean} [text=false] Render the text scale above of the scalebar. Only applies\n * when `bar` is `true`.\n * @property {number|undefined} [dpi=undefined] dpi of output device such as printer. Only applies\n * when `bar` is `true`. If undefined the OGC default screen pixel size of 0.28mm will be assumed.\n */\n\n/**\n * @classdesc\n * A control displaying rough y-axis distances, calculated for the center of the\n * viewport. For conformal projections (e.g. EPSG:3857, the default view\n * projection in OpenLayers), the scale is valid for all directions.\n * No scale line will be shown when the y-axis distance of a pixel at the\n * viewport center cannot be calculated in the view projection.\n * By default the scale line will show in the bottom left portion of the map,\n * but this can be changed by using the css selector `.ol-scale-line`.\n * When specifying `bar` as `true`, a scalebar will be rendered instead\n * of a scaleline.\n *\n * @api\n */\nclass ScaleLine extends Control {\n /**\n * @param {Options=} opt_options Scale line options.\n */\n constructor(opt_options) {\n const options = opt_options ? opt_options : {};\n\n const className =\n options.className !== undefined\n ? options.className\n : options.bar\n ? 'ol-scale-bar'\n : 'ol-scale-line';\n\n super({\n element: document.createElement('div'),\n render: options.render,\n target: options.target,\n });\n\n /**\n * @private\n * @type {HTMLElement}\n */\n this.innerElement_ = document.createElement('div');\n this.innerElement_.className = className + '-inner';\n\n this.element.className = className + ' ' + CLASS_UNSELECTABLE;\n this.element.appendChild(this.innerElement_);\n\n /**\n * @private\n * @type {?import(\"../View.js\").State}\n */\n this.viewState_ = null;\n\n /**\n * @private\n * @type {number}\n */\n this.minWidth_ = options.minWidth !== undefined ? options.minWidth : 64;\n\n /**\n * @private\n * @type {boolean}\n */\n this.renderedVisible_ = false;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.renderedWidth_ = undefined;\n\n /**\n * @private\n * @type {string}\n */\n this.renderedHTML_ = '';\n\n this.addEventListener(\n getChangeEventType(UNITS_PROP),\n this.handleUnitsChanged_\n );\n\n this.setUnits(options.units || Units.METRIC);\n\n /**\n * @private\n * @type {boolean}\n */\n this.scaleBar_ = options.bar || false;\n\n /**\n * @private\n * @type {number}\n */\n this.scaleBarSteps_ = options.steps || 4;\n\n /**\n * @private\n * @type {boolean}\n */\n this.scaleBarText_ = options.text || false;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.dpi_ = options.dpi || undefined;\n }\n\n /**\n * Return the units to use in the scale line.\n * @return {import(\"./ScaleLine.js\").Units} The units\n * to use in the scale line.\n * @observable\n * @api\n */\n getUnits() {\n return this.get(UNITS_PROP);\n }\n\n /**\n * @private\n */\n handleUnitsChanged_() {\n this.updateElement_();\n }\n\n /**\n * Set the units to use in the scale line.\n * @param {import(\"./ScaleLine.js\").Units} units The units to use in the scale line.\n * @observable\n * @api\n */\n setUnits(units) {\n this.set(UNITS_PROP, units);\n }\n\n /**\n * Specify the dpi of output device such as printer.\n * @param {number|undefined} dpi The dpi of output device.\n * @api\n */\n setDpi(dpi) {\n this.dpi_ = dpi;\n }\n\n /**\n * @private\n */\n updateElement_() {\n const viewState = this.viewState_;\n\n if (!viewState) {\n if (this.renderedVisible_) {\n this.element.style.display = 'none';\n this.renderedVisible_ = false;\n }\n return;\n }\n\n const center = viewState.center;\n const projection = viewState.projection;\n const units = this.getUnits();\n const pointResolutionUnits =\n units == Units.DEGREES ? ProjUnits.DEGREES : ProjUnits.METERS;\n let pointResolution = getPointResolution(\n projection,\n viewState.resolution,\n center,\n pointResolutionUnits\n );\n\n const minWidth =\n (this.minWidth_ * (this.dpi_ || DEFAULT_DPI)) / DEFAULT_DPI;\n\n let nominalCount = minWidth * pointResolution;\n let suffix = '';\n if (units == Units.DEGREES) {\n const metersPerDegree = METERS_PER_UNIT[ProjUnits.DEGREES];\n nominalCount *= metersPerDegree;\n if (nominalCount < metersPerDegree / 60) {\n suffix = '\\u2033'; // seconds\n pointResolution *= 3600;\n } else if (nominalCount < metersPerDegree) {\n suffix = '\\u2032'; // minutes\n pointResolution *= 60;\n } else {\n suffix = '\\u00b0'; // degrees\n }\n } else if (units == Units.IMPERIAL) {\n if (nominalCount < 0.9144) {\n suffix = 'in';\n pointResolution /= 0.0254;\n } else if (nominalCount < 1609.344) {\n suffix = 'ft';\n pointResolution /= 0.3048;\n } else {\n suffix = 'mi';\n pointResolution /= 1609.344;\n }\n } else if (units == Units.NAUTICAL) {\n pointResolution /= 1852;\n suffix = 'nm';\n } else if (units == Units.METRIC) {\n if (nominalCount < 0.001) {\n suffix = 'μm';\n pointResolution *= 1000000;\n } else if (nominalCount < 1) {\n suffix = 'mm';\n pointResolution *= 1000;\n } else if (nominalCount < 1000) {\n suffix = 'm';\n } else {\n suffix = 'km';\n pointResolution /= 1000;\n }\n } else if (units == Units.US) {\n if (nominalCount < 0.9144) {\n suffix = 'in';\n pointResolution *= 39.37;\n } else if (nominalCount < 1609.344) {\n suffix = 'ft';\n pointResolution /= 0.30480061;\n } else {\n suffix = 'mi';\n pointResolution /= 1609.3472;\n }\n } else {\n assert(false, 33); // Invalid units\n }\n\n let i = 3 * Math.floor(Math.log(minWidth * pointResolution) / Math.log(10));\n let count, width, decimalCount;\n while (true) {\n decimalCount = Math.floor(i / 3);\n const decimal = Math.pow(10, decimalCount);\n count = LEADING_DIGITS[((i % 3) + 3) % 3] * decimal;\n width = Math.round(count / pointResolution);\n if (isNaN(width)) {\n this.element.style.display = 'none';\n this.renderedVisible_ = false;\n return;\n } else if (width >= minWidth) {\n break;\n }\n ++i;\n }\n let html;\n if (this.scaleBar_) {\n html = this.createScaleBar(width, count, suffix);\n } else {\n html = count.toFixed(decimalCount < 0 ? -decimalCount : 0) + ' ' + suffix;\n }\n\n if (this.renderedHTML_ != html) {\n this.innerElement_.innerHTML = html;\n this.renderedHTML_ = html;\n }\n\n if (this.renderedWidth_ != width) {\n this.innerElement_.style.width = width + 'px';\n this.renderedWidth_ = width;\n }\n\n if (!this.renderedVisible_) {\n this.element.style.display = '';\n this.renderedVisible_ = true;\n }\n }\n\n /**\n * @private\n * @param {number} width The current width of the scalebar.\n * @param {number} scale The current scale.\n * @param {string} suffix The suffix to append to the scale text.\n * @returns {string} The stringified HTML of the scalebar.\n */\n createScaleBar(width, scale, suffix) {\n const mapScale =\n '1 : ' + Math.round(this.getScaleForResolution()).toLocaleString();\n const scaleSteps = [];\n const stepWidth = width / this.scaleBarSteps_;\n let backgroundColor = '#ffffff';\n for (let i = 0; i < this.scaleBarSteps_; i++) {\n if (i === 0) {\n // create the first marker at position 0\n scaleSteps.push(this.createMarker('absolute', i));\n }\n scaleSteps.push(\n '<div>' +\n '<div ' +\n 'class=\"ol-scale-singlebar\" ' +\n 'style=' +\n '\"width: ' +\n stepWidth +\n 'px;' +\n 'background-color: ' +\n backgroundColor +\n ';\"' +\n '>' +\n '</div>' +\n this.createMarker('relative', i) +\n /*render text every second step, except when only 2 steps */\n (i % 2 === 0 || this.scaleBarSteps_ === 2\n ? this.createStepText(i, width, false, scale, suffix)\n : '') +\n '</div>'\n );\n if (i === this.scaleBarSteps_ - 1) {\n {\n /*render text at the end */\n }\n scaleSteps.push(this.createStepText(i + 1, width, true, scale, suffix));\n }\n // switch colors of steps between black and white\n if (backgroundColor === '#ffffff') {\n backgroundColor = '#000000';\n } else {\n backgroundColor = '#ffffff';\n }\n }\n\n let scaleBarText;\n if (this.scaleBarText_) {\n scaleBarText =\n '<div ' +\n 'class=\"ol-scale-text\" ' +\n 'style=\"width: ' +\n width +\n 'px;\">' +\n mapScale +\n '</div>';\n } else {\n scaleBarText = '';\n }\n const container =\n '<div ' +\n 'style=\"display: flex;\">' +\n scaleBarText +\n scaleSteps.join('') +\n '</div>';\n return container;\n }\n\n /**\n * Creates a marker at given position\n * @param {string} position - The position, absolute or relative\n * @param {number} i - The iterator\n * @returns {string} The stringified div containing the marker\n */\n createMarker(position, i) {\n const top = position === 'absolute' ? 3 : -10;\n return (\n '<div ' +\n 'class=\"ol-scale-step-marker\" ' +\n 'style=\"position: ' +\n position +\n ';' +\n 'top: ' +\n top +\n 'px;\"' +\n '></div>'\n );\n }\n\n /**\n * Creates the label for a marker marker at given position\n * @param {number} i - The iterator\n * @param {number} width - The width the scalebar will currently use\n * @param {boolean} isLast - Flag indicating if we add the last step text\n * @param {number} scale - The current scale for the whole scalebar\n * @param {string} suffix - The suffix for the scale\n * @returns {string} The stringified div containing the step text\n */\n createStepText(i, width, isLast, scale, suffix) {\n const length =\n i === 0 ? 0 : Math.round((scale / this.scaleBarSteps_) * i * 100) / 100;\n const lengthString = length + (i === 0 ? '' : ' ' + suffix);\n const margin = i === 0 ? -3 : (width / this.scaleBarSteps_) * -1;\n const minWidth = i === 0 ? 0 : (width / this.scaleBarSteps_) * 2;\n return (\n '<div ' +\n 'class=\"ol-scale-step-text\" ' +\n 'style=\"' +\n 'margin-left: ' +\n margin +\n 'px;' +\n 'text-align: ' +\n (i === 0 ? 'left' : 'center') +\n '; ' +\n 'min-width: ' +\n minWidth +\n 'px;' +\n 'left: ' +\n (isLast ? width + 'px' : 'unset') +\n ';\"' +\n '>' +\n lengthString +\n '</div>'\n );\n }\n\n /**\n * Returns the appropriate scale for the given resolution and units.\n * @return {number} The appropriate scale.\n */\n getScaleForResolution() {\n const resolution = getPointResolution(\n this.viewState_.projection,\n this.viewState_.resolution,\n this.viewState_.center\n );\n const dpi = this.dpi_ || DEFAULT_DPI;\n const mpu = this.viewState_.projection.getMetersPerUnit();\n const inchesPerMeter = 39.37;\n return parseFloat(resolution.toString()) * mpu * inchesPerMeter * dpi;\n }\n\n /**\n * Update the scale line element.\n * @param {import(\"../MapEvent.js\").default} mapEvent Map event.\n * @override\n */\n render(mapEvent) {\n const frameState = mapEvent.frameState;\n if (!frameState) {\n this.viewState_ = null;\n } else {\n this.viewState_ = frameState.viewState;\n }\n this.updateElement_();\n }\n}\n\nexport default ScaleLine;\n","/**\n * @module ol/control/ZoomSlider\n */\n\nimport Control from './Control.js';\nimport EventType from '../events/EventType.js';\nimport PointerEventType from '../pointer/EventType.js';\nimport {CLASS_CONTROL, CLASS_UNSELECTABLE} from '../css.js';\nimport {clamp} from '../math.js';\nimport {easeOut} from '../easing.js';\nimport {listen, unlistenByKey} from '../events.js';\nimport {stopPropagation} from '../events/Event.js';\n\n/**\n * The enum for available directions.\n *\n * @enum {number}\n */\nconst Direction = {\n VERTICAL: 0,\n HORIZONTAL: 1,\n};\n\n/**\n * @typedef {Object} Options\n * @property {string} [className='ol-zoomslider'] CSS class name.\n * @property {number} [duration=200] Animation duration in milliseconds.\n * @property {function(import(\"../MapEvent.js\").default):void} [render] Function called when the control\n * should be re-rendered. This is called in a `requestAnimationFrame` callback.\n */\n\n/**\n * @classdesc\n * A slider type of control for zooming.\n *\n * Example:\n *\n * map.addControl(new ZoomSlider());\n *\n * @api\n */\nclass ZoomSlider extends Control {\n /**\n * @param {Options=} opt_options Zoom slider options.\n */\n constructor(opt_options) {\n const options = opt_options ? opt_options : {};\n\n super({\n element: document.createElement('div'),\n render: options.render,\n });\n\n /**\n * @type {!Array.<import(\"../events.js\").EventsKey>}\n * @private\n */\n this.dragListenerKeys_ = [];\n\n /**\n * Will hold the current resolution of the view.\n *\n * @type {number|undefined}\n * @private\n */\n this.currentResolution_ = undefined;\n\n /**\n * The direction of the slider. Will be determined from actual display of the\n * container and defaults to Direction.VERTICAL.\n *\n * @type {Direction}\n * @private\n */\n this.direction_ = Direction.VERTICAL;\n\n /**\n * @type {boolean}\n * @private\n */\n this.dragging_;\n\n /**\n * @type {number}\n * @private\n */\n this.heightLimit_ = 0;\n\n /**\n * @type {number}\n * @private\n */\n this.widthLimit_ = 0;\n\n /**\n * @type {number|undefined}\n * @private\n */\n this.startX_;\n\n /**\n * @type {number|undefined}\n * @private\n */\n this.startY_;\n\n /**\n * The calculated thumb size (border box plus margins). Set when initSlider_\n * is called.\n * @type {import(\"../size.js\").Size}\n * @private\n */\n this.thumbSize_ = null;\n\n /**\n * Whether the slider is initialized.\n * @type {boolean}\n * @private\n */\n this.sliderInitialized_ = false;\n\n /**\n * @type {number}\n * @private\n */\n this.duration_ = options.duration !== undefined ? options.duration : 200;\n\n const className =\n options.className !== undefined ? options.className : 'ol-zoomslider';\n const thumbElement = document.createElement('button');\n thumbElement.setAttribute('type', 'button');\n thumbElement.className = className + '-thumb ' + CLASS_UNSELECTABLE;\n const containerElement = this.element;\n containerElement.className =\n className + ' ' + CLASS_UNSELECTABLE + ' ' + CLASS_CONTROL;\n containerElement.appendChild(thumbElement);\n\n containerElement.addEventListener(\n PointerEventType.POINTERDOWN,\n this.handleDraggerStart_.bind(this),\n false\n );\n containerElement.addEventListener(\n PointerEventType.POINTERMOVE,\n this.handleDraggerDrag_.bind(this),\n false\n );\n containerElement.addEventListener(\n PointerEventType.POINTERUP,\n this.handleDraggerEnd_.bind(this),\n false\n );\n\n containerElement.addEventListener(\n EventType.CLICK,\n this.handleContainerClick_.bind(this),\n false\n );\n thumbElement.addEventListener(EventType.CLICK, stopPropagation, false);\n }\n\n /**\n * Remove the control from its current map and attach it to the new map.\n * Subclasses may set up event handlers to get notified about changes to\n * the map here.\n * @param {import(\"../PluggableMap.js\").default} map Map.\n * @api\n */\n setMap(map) {\n super.setMap(map);\n if (map) {\n map.render();\n }\n }\n\n /**\n * Initializes the slider element. This will determine and set this controls\n * direction_ and also constrain the dragging of the thumb to always be within\n * the bounds of the container.\n *\n * @return {boolean} Initialization successful\n * @private\n */\n initSlider_() {\n const container = this.element;\n const containerWidth = container.offsetWidth;\n const containerHeight = container.offsetHeight;\n if (containerWidth === 0 && containerHeight === 0) {\n return (this.sliderInitialized_ = false);\n }\n\n const thumb = /** @type {HTMLElement} */ (container.firstElementChild);\n const computedStyle = getComputedStyle(thumb);\n const thumbWidth =\n thumb.offsetWidth +\n parseFloat(computedStyle['marginRight']) +\n parseFloat(computedStyle['marginLeft']);\n const thumbHeight =\n thumb.offsetHeight +\n parseFloat(computedStyle['marginTop']) +\n parseFloat(computedStyle['marginBottom']);\n this.thumbSize_ = [thumbWidth, thumbHeight];\n\n if (containerWidth > containerHeight) {\n this.direction_ = Direction.HORIZONTAL;\n this.widthLimit_ = containerWidth - thumbWidth;\n } else {\n this.direction_ = Direction.VERTICAL;\n this.heightLimit_ = containerHeight - thumbHeight;\n }\n return (this.sliderInitialized_ = true);\n }\n\n /**\n * @param {PointerEvent} event The browser event to handle.\n * @private\n */\n handleContainerClick_(event) {\n const view = this.getMap().getView();\n\n const relativePosition = this.getRelativePosition_(\n event.offsetX - this.thumbSize_[0] / 2,\n event.offsetY - this.thumbSize_[1] / 2\n );\n\n const resolution = this.getResolutionForPosition_(relativePosition);\n const zoom = view.getConstrainedZoom(view.getZoomForResolution(resolution));\n\n view.animateInternal({\n zoom: zoom,\n duration: this.duration_,\n easing: easeOut,\n });\n }\n\n /**\n * Handle dragger start events.\n * @param {PointerEvent} event The drag event.\n * @private\n */\n handleDraggerStart_(event) {\n if (!this.dragging_ && event.target === this.element.firstElementChild) {\n const element = /** @type {HTMLElement} */ (this.element\n .firstElementChild);\n this.getMap().getView().beginInteraction();\n this.startX_ = event.clientX - parseFloat(element.style.left);\n this.startY_ = event.clientY - parseFloat(element.style.top);\n this.dragging_ = true;\n\n if (this.dragListenerKeys_.length === 0) {\n const drag = this.handleDraggerDrag_;\n const end = this.handleDraggerEnd_;\n this.dragListenerKeys_.push(\n listen(document, PointerEventType.POINTERMOVE, drag, this),\n listen(document, PointerEventType.POINTERUP, end, this)\n );\n }\n }\n }\n\n /**\n * Handle dragger drag events.\n *\n * @param {PointerEvent} event The drag event.\n * @private\n */\n handleDraggerDrag_(event) {\n if (this.dragging_) {\n const deltaX = event.clientX - this.startX_;\n const deltaY = event.clientY - this.startY_;\n const relativePosition = this.getRelativePosition_(deltaX, deltaY);\n this.currentResolution_ = this.getResolutionForPosition_(\n relativePosition\n );\n this.getMap().getView().setResolution(this.currentResolution_);\n }\n }\n\n /**\n * Handle dragger end events.\n * @param {PointerEvent} event The drag event.\n * @private\n */\n handleDraggerEnd_(event) {\n if (this.dragging_) {\n const view = this.getMap().getView();\n view.endInteraction();\n\n this.dragging_ = false;\n this.startX_ = undefined;\n this.startY_ = undefined;\n this.dragListenerKeys_.forEach(unlistenByKey);\n this.dragListenerKeys_.length = 0;\n }\n }\n\n /**\n * Positions the thumb inside its container according to the given resolution.\n *\n * @param {number} res The res.\n * @private\n */\n setThumbPosition_(res) {\n const position = this.getPositionForResolution_(res);\n const thumb = /** @type {HTMLElement} */ (this.element.firstElementChild);\n\n if (this.direction_ == Direction.HORIZONTAL) {\n thumb.style.left = this.widthLimit_ * position + 'px';\n } else {\n thumb.style.top = this.heightLimit_ * position + 'px';\n }\n }\n\n /**\n * Calculates the relative position of the thumb given x and y offsets. The\n * relative position scales from 0 to 1. The x and y offsets are assumed to be\n * in pixel units within the dragger limits.\n *\n * @param {number} x Pixel position relative to the left of the slider.\n * @param {number} y Pixel position relative to the top of the slider.\n * @return {number} The relative position of the thumb.\n * @private\n */\n getRelativePosition_(x, y) {\n let amount;\n if (this.direction_ === Direction.HORIZONTAL) {\n amount = x / this.widthLimit_;\n } else {\n amount = y / this.heightLimit_;\n }\n return clamp(amount, 0, 1);\n }\n\n /**\n * Calculates the corresponding resolution of the thumb given its relative\n * position (where 0 is the minimum and 1 is the maximum).\n *\n * @param {number} position The relative position of the thumb.\n * @return {number} The corresponding resolution.\n * @private\n */\n getResolutionForPosition_(position) {\n const fn = this.getMap().getView().getResolutionForValueFunction();\n return fn(1 - position);\n }\n\n /**\n * Determines the relative position of the slider for the given resolution. A\n * relative position of 0 corresponds to the minimum view resolution. A\n * relative position of 1 corresponds to the maximum view resolution.\n *\n * @param {number} res The resolution.\n * @return {number} The relative position value (between 0 and 1).\n * @private\n */\n getPositionForResolution_(res) {\n const fn = this.getMap().getView().getValueForResolutionFunction();\n return clamp(1 - fn(res), 0, 1);\n }\n\n /**\n * Update the zoomslider element.\n * @param {import(\"../MapEvent.js\").default} mapEvent Map event.\n * @override\n */\n render(mapEvent) {\n if (!mapEvent.frameState) {\n return;\n }\n if (!this.sliderInitialized_ && !this.initSlider_()) {\n return;\n }\n const res = mapEvent.frameState.viewState.resolution;\n this.currentResolution_ = res;\n this.setThumbPosition_(res);\n }\n}\n\nexport default ZoomSlider;\n","/**\n * @module ol/control/ZoomToExtent\n */\nimport Control from './Control.js';\nimport EventType from '../events/EventType.js';\nimport {CLASS_CONTROL, CLASS_UNSELECTABLE} from '../css.js';\nimport {fromExtent as polygonFromExtent} from '../geom/Polygon.js';\n\n/**\n * @typedef {Object} Options\n * @property {string} [className='ol-zoom-extent'] Class name.\n * @property {HTMLElement|string} [target] Specify a target if you want the control\n * to be rendered outside of the map's viewport.\n * @property {string|HTMLElement} [label='E'] Text label to use for the button.\n * Instead of text, also an element (e.g. a `span` element) can be used.\n * @property {string} [tipLabel='Fit to extent'] Text label to use for the button tip.\n * @property {import(\"../extent.js\").Extent} [extent] The extent to zoom to. If undefined the validity\n * extent of the view projection is used.\n */\n\n/**\n * @classdesc\n * A button control which, when pressed, changes the map view to a specific\n * extent. To style this control use the css selector `.ol-zoom-extent`.\n *\n * @api\n */\nclass ZoomToExtent extends Control {\n /**\n * @param {Options=} opt_options Options.\n */\n constructor(opt_options) {\n const options = opt_options ? opt_options : {};\n\n super({\n element: document.createElement('div'),\n target: options.target,\n });\n\n /**\n * @type {?import(\"../extent.js\").Extent}\n * @protected\n */\n this.extent = options.extent ? options.extent : null;\n\n const className =\n options.className !== undefined ? options.className : 'ol-zoom-extent';\n\n const label = options.label !== undefined ? options.label : 'E';\n const tipLabel =\n options.tipLabel !== undefined ? options.tipLabel : 'Fit to extent';\n const button = document.createElement('button');\n button.setAttribute('type', 'button');\n button.title = tipLabel;\n button.appendChild(\n typeof label === 'string' ? document.createTextNode(label) : label\n );\n\n button.addEventListener(\n EventType.CLICK,\n this.handleClick_.bind(this),\n false\n );\n\n const cssClasses =\n className + ' ' + CLASS_UNSELECTABLE + ' ' + CLASS_CONTROL;\n const element = this.element;\n element.className = cssClasses;\n element.appendChild(button);\n }\n\n /**\n * @param {MouseEvent} event The event to handle\n * @private\n */\n handleClick_(event) {\n event.preventDefault();\n this.handleZoomToExtent();\n }\n\n /**\n * @protected\n */\n handleZoomToExtent() {\n const map = this.getMap();\n const view = map.getView();\n const extent = !this.extent\n ? view.getProjection().getExtent()\n : this.extent;\n view.fitInternal(polygonFromExtent(extent));\n }\n}\n\nexport default ZoomToExtent;\n","/**\n * @module ol/control\n */\nimport Attribution from './control/Attribution.js';\nimport Collection from './Collection.js';\nimport Rotate from './control/Rotate.js';\nimport Zoom from './control/Zoom.js';\n\nexport {default as Attribution} from './control/Attribution.js';\nexport {default as Control} from './control/Control.js';\nexport {default as FullScreen} from './control/FullScreen.js';\nexport {default as MousePosition} from './control/MousePosition.js';\nexport {default as OverviewMap} from './control/OverviewMap.js';\nexport {default as Rotate} from './control/Rotate.js';\nexport {default as ScaleLine} from './control/ScaleLine.js';\nexport {default as Zoom} from './control/Zoom.js';\nexport {default as ZoomSlider} from './control/ZoomSlider.js';\nexport {default as ZoomToExtent} from './control/ZoomToExtent.js';\n\n/**\n * @typedef {Object} DefaultsOptions\n * @property {boolean} [attribution=true] Include\n * {@link module:ol/control/Attribution~Attribution}.\n * @property {import(\"./control/Attribution.js\").Options} [attributionOptions]\n * Options for {@link module:ol/control/Attribution~Attribution}.\n * @property {boolean} [rotate=true] Include\n * {@link module:ol/control/Rotate~Rotate}.\n * @property {import(\"./control/Rotate.js\").Options} [rotateOptions] Options\n * for {@link module:ol/control/Rotate~Rotate}.\n * @property {boolean} [zoom] Include {@link module:ol/control/Zoom~Zoom}.\n * @property {import(\"./control/Zoom.js\").Options} [zoomOptions] Options for\n * {@link module:ol/control/Zoom~Zoom}.\n * @api\n */\n\n/**\n * Set of controls included in maps by default. Unless configured otherwise,\n * this returns a collection containing an instance of each of the following\n * controls:\n * * {@link module:ol/control/Zoom~Zoom}\n * * {@link module:ol/control/Rotate~Rotate}\n * * {@link module:ol/control/Attribution~Attribution}\n *\n * @param {DefaultsOptions=} opt_options\n * Defaults options.\n * @return {Collection<import(\"./control/Control.js\").default>}\n * Controls.\n * @api\n */\nexport function defaults(opt_options) {\n const options = opt_options ? opt_options : {};\n\n const controls = new Collection();\n\n const zoomControl = options.zoom !== undefined ? options.zoom : true;\n if (zoomControl) {\n controls.push(new Zoom(options.zoomOptions));\n }\n\n const rotateControl = options.rotate !== undefined ? options.rotate : true;\n if (rotateControl) {\n controls.push(new Rotate(options.rotateOptions));\n }\n\n const attributionControl =\n options.attribution !== undefined ? options.attribution : true;\n if (attributionControl) {\n controls.push(new Attribution(options.attributionOptions));\n }\n\n return controls;\n}\n","/**\n * @module ol/interaction/Property\n */\n\n/**\n * @enum {string}\n */\nexport default {\n ACTIVE: 'active',\n};\n","/**\n * @module ol/interaction/Interaction\n */\nimport BaseObject from '../Object.js';\nimport InteractionProperty from './Property.js';\nimport {easeOut, linear} from '../easing.js';\n\n/**\n * Object literal with config options for interactions.\n * @typedef {Object} InteractionOptions\n * @property {function(import(\"../MapBrowserEvent.js\").default):boolean} handleEvent\n * Method called by the map to notify the interaction that a browser event was\n * dispatched to the map. If the function returns a falsy value, propagation of\n * the event to other interactions in the map's interactions chain will be\n * prevented (this includes functions with no explicit return). The interactions\n * are traversed in reverse order of the interactions collection of the map.\n */\n\n/**\n * @classdesc\n * Abstract base class; normally only used for creating subclasses and not\n * instantiated in apps.\n * User actions that change the state of the map. Some are similar to controls,\n * but are not associated with a DOM element.\n * For example, {@link module:ol/interaction/KeyboardZoom~KeyboardZoom} is\n * functionally the same as {@link module:ol/control/Zoom~Zoom}, but triggered\n * by a keyboard event not a button element event.\n * Although interactions do not have a DOM element, some of them do render\n * vectors and so are visible on the screen.\n * @api\n */\nclass Interaction extends BaseObject {\n /**\n * @param {InteractionOptions=} opt_options Options.\n */\n constructor(opt_options) {\n super();\n\n if (opt_options && opt_options.handleEvent) {\n this.handleEvent = opt_options.handleEvent;\n }\n\n /**\n * @private\n * @type {import(\"../PluggableMap.js\").default}\n */\n this.map_ = null;\n\n this.setActive(true);\n }\n\n /**\n * Return whether the interaction is currently active.\n * @return {boolean} `true` if the interaction is active, `false` otherwise.\n * @observable\n * @api\n */\n getActive() {\n return /** @type {boolean} */ (this.get(InteractionProperty.ACTIVE));\n }\n\n /**\n * Get the map associated with this interaction.\n * @return {import(\"../PluggableMap.js\").default} Map.\n * @api\n */\n getMap() {\n return this.map_;\n }\n\n /**\n * Handles the {@link module:ol/MapBrowserEvent map browser event}.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} `false` to stop event propagation.\n * @api\n */\n handleEvent(mapBrowserEvent) {\n return true;\n }\n\n /**\n * Activate or deactivate the interaction.\n * @param {boolean} active Active.\n * @observable\n * @api\n */\n setActive(active) {\n this.set(InteractionProperty.ACTIVE, active);\n }\n\n /**\n * Remove the interaction from its current map and attach it to the new map.\n * Subclasses may set up event handlers to get notified about changes to\n * the map here.\n * @param {import(\"../PluggableMap.js\").default} map Map.\n */\n setMap(map) {\n this.map_ = map;\n }\n}\n\n/**\n * @param {import(\"../View.js\").default} view View.\n * @param {import(\"../coordinate.js\").Coordinate} delta Delta.\n * @param {number=} opt_duration Duration.\n */\nexport function pan(view, delta, opt_duration) {\n const currentCenter = view.getCenterInternal();\n if (currentCenter) {\n const center = [currentCenter[0] + delta[0], currentCenter[1] + delta[1]];\n view.animateInternal({\n duration: opt_duration !== undefined ? opt_duration : 250,\n easing: linear,\n center: view.getConstrainedCenter(center),\n });\n }\n}\n\n/**\n * @param {import(\"../View.js\").default} view View.\n * @param {number} delta Delta from previous zoom level.\n * @param {import(\"../coordinate.js\").Coordinate=} opt_anchor Anchor coordinate in the user projection.\n * @param {number=} opt_duration Duration.\n */\nexport function zoomByDelta(view, delta, opt_anchor, opt_duration) {\n const currentZoom = view.getZoom();\n\n if (currentZoom === undefined) {\n return;\n }\n\n const newZoom = view.getConstrainedZoom(currentZoom + delta);\n const newResolution = view.getResolutionForZoom(newZoom);\n\n if (view.getAnimating()) {\n view.cancelAnimations();\n }\n view.animate({\n resolution: newResolution,\n anchor: opt_anchor,\n duration: opt_duration !== undefined ? opt_duration : 250,\n easing: easeOut,\n });\n}\n\nexport default Interaction;\n","/**\n * @module ol/interaction/DoubleClickZoom\n */\nimport Interaction, {zoomByDelta} from './Interaction.js';\nimport MapBrowserEventType from '../MapBrowserEventType.js';\n\n/**\n * @typedef {Object} Options\n * @property {number} [duration=250] Animation duration in milliseconds.\n * @property {number} [delta=1] The zoom delta applied on each double click.\n */\n\n/**\n * @classdesc\n * Allows the user to zoom by double-clicking on the map.\n * @api\n */\nclass DoubleClickZoom extends Interaction {\n /**\n * @param {Options=} opt_options Options.\n */\n constructor(opt_options) {\n super();\n\n const options = opt_options ? opt_options : {};\n\n /**\n * @private\n * @type {number}\n */\n this.delta_ = options.delta ? options.delta : 1;\n\n /**\n * @private\n * @type {number}\n */\n this.duration_ = options.duration !== undefined ? options.duration : 250;\n }\n\n /**\n * Handles the {@link module:ol/MapBrowserEvent map browser event} (if it was a\n * doubleclick) and eventually zooms the map.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} `false` to stop event propagation.\n */\n handleEvent(mapBrowserEvent) {\n let stopEvent = false;\n if (mapBrowserEvent.type == MapBrowserEventType.DBLCLICK) {\n const browserEvent = /** @type {MouseEvent} */ (mapBrowserEvent.originalEvent);\n const map = mapBrowserEvent.map;\n const anchor = mapBrowserEvent.coordinate;\n const delta = browserEvent.shiftKey ? -this.delta_ : this.delta_;\n const view = map.getView();\n zoomByDelta(view, delta, anchor, this.duration_);\n mapBrowserEvent.preventDefault();\n stopEvent = true;\n }\n return !stopEvent;\n }\n}\n\nexport default DoubleClickZoom;\n","/**\n * @module ol/interaction/Pointer\n */\nimport Interaction from './Interaction.js';\nimport MapBrowserEventType from '../MapBrowserEventType.js';\nimport {getValues} from '../obj.js';\n\n/**\n * @typedef {Object} Options\n * @property {function(import(\"../MapBrowserEvent.js\").default):boolean} [handleDownEvent]\n * Function handling \"down\" events. If the function returns `true` then a drag\n * sequence is started.\n * @property {function(import(\"../MapBrowserEvent.js\").default):void} [handleDragEvent]\n * Function handling \"drag\" events. This function is called on \"move\" events\n * during a drag sequence.\n * @property {function(import(\"../MapBrowserEvent.js\").default):boolean} [handleEvent]\n * Method called by the map to notify the interaction that a browser event was\n * dispatched to the map. The function may return `false` to prevent the\n * propagation of the event to other interactions in the map's interactions\n * chain.\n * @property {function(import(\"../MapBrowserEvent.js\").default):void} [handleMoveEvent]\n * Function handling \"move\" events. This function is called on \"move\" events.\n * This functions is also called during a drag sequence, so during a drag\n * sequence both the `handleDragEvent` function and this function are called.\n * If `handleDownEvent` is defined and it returns true this function will not\n * be called during a drag sequence.\n * @property {function(import(\"../MapBrowserEvent.js\").default):boolean} [handleUpEvent]\n * Function handling \"up\" events. If the function returns `false` then the\n * current drag sequence is stopped.\n * @property {function(boolean):boolean} [stopDown]\n * Should the down event be propagated to other interactions, or should be\n * stopped?\n */\n\n/**\n * @classdesc\n * Base class that calls user-defined functions on `down`, `move` and `up`\n * events. This class also manages \"drag sequences\".\n *\n * When the `handleDownEvent` user function returns `true` a drag sequence is\n * started. During a drag sequence the `handleDragEvent` user function is\n * called on `move` events. The drag sequence ends when the `handleUpEvent`\n * user function is called and returns `false`.\n * @api\n */\nclass PointerInteraction extends Interaction {\n /**\n * @param {Options=} opt_options Options.\n */\n constructor(opt_options) {\n const options = opt_options ? opt_options : {};\n\n super(\n /** @type {import(\"./Interaction.js\").InteractionOptions} */ (options)\n );\n\n if (options.handleDownEvent) {\n this.handleDownEvent = options.handleDownEvent;\n }\n\n if (options.handleDragEvent) {\n this.handleDragEvent = options.handleDragEvent;\n }\n\n if (options.handleMoveEvent) {\n this.handleMoveEvent = options.handleMoveEvent;\n }\n\n if (options.handleUpEvent) {\n this.handleUpEvent = options.handleUpEvent;\n }\n\n if (options.stopDown) {\n this.stopDown = options.stopDown;\n }\n\n /**\n * @type {boolean}\n * @protected\n */\n this.handlingDownUpSequence = false;\n\n /**\n * @type {!Object<string, PointerEvent>}\n * @private\n */\n this.trackedPointers_ = {};\n\n /**\n * @type {Array<PointerEvent>}\n * @protected\n */\n this.targetPointers = [];\n }\n\n /**\n * Returns the current number of pointers involved in the interaction,\n * e.g. `2` when two fingers are used.\n * @return {number} The number of pointers.\n * @api\n */\n getPointerCount() {\n return this.targetPointers.length;\n }\n\n /**\n * Handle pointer down events.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Event.\n * @return {boolean} If the event was consumed.\n * @protected\n */\n handleDownEvent(mapBrowserEvent) {\n return false;\n }\n\n /**\n * Handle pointer drag events.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Event.\n * @protected\n */\n handleDragEvent(mapBrowserEvent) {}\n\n /**\n * Handles the {@link module:ol/MapBrowserEvent map browser event} and may call into\n * other functions, if event sequences like e.g. 'drag' or 'down-up' etc. are\n * detected.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} `false` to stop event propagation.\n * @api\n */\n handleEvent(mapBrowserEvent) {\n if (!mapBrowserEvent.originalEvent) {\n return true;\n }\n\n let stopEvent = false;\n this.updateTrackedPointers_(mapBrowserEvent);\n if (this.handlingDownUpSequence) {\n if (mapBrowserEvent.type == MapBrowserEventType.POINTERDRAG) {\n this.handleDragEvent(mapBrowserEvent);\n // prevent page scrolling during dragging\n mapBrowserEvent.preventDefault();\n } else if (mapBrowserEvent.type == MapBrowserEventType.POINTERUP) {\n const handledUp = this.handleUpEvent(mapBrowserEvent);\n this.handlingDownUpSequence =\n handledUp && this.targetPointers.length > 0;\n }\n } else {\n if (mapBrowserEvent.type == MapBrowserEventType.POINTERDOWN) {\n const handled = this.handleDownEvent(mapBrowserEvent);\n this.handlingDownUpSequence = handled;\n stopEvent = this.stopDown(handled);\n } else if (mapBrowserEvent.type == MapBrowserEventType.POINTERMOVE) {\n this.handleMoveEvent(mapBrowserEvent);\n }\n }\n return !stopEvent;\n }\n\n /**\n * Handle pointer move events.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Event.\n * @protected\n */\n handleMoveEvent(mapBrowserEvent) {}\n\n /**\n * Handle pointer up events.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Event.\n * @return {boolean} If the event was consumed.\n * @protected\n */\n handleUpEvent(mapBrowserEvent) {\n return false;\n }\n\n /**\n * This function is used to determine if \"down\" events should be propagated\n * to other interactions or should be stopped.\n * @param {boolean} handled Was the event handled by the interaction?\n * @return {boolean} Should the `down` event be stopped?\n */\n stopDown(handled) {\n return handled;\n }\n\n /**\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Event.\n * @private\n */\n updateTrackedPointers_(mapBrowserEvent) {\n if (isPointerDraggingEvent(mapBrowserEvent)) {\n const event = mapBrowserEvent.originalEvent;\n\n const id = event.pointerId.toString();\n if (mapBrowserEvent.type == MapBrowserEventType.POINTERUP) {\n delete this.trackedPointers_[id];\n } else if (mapBrowserEvent.type == MapBrowserEventType.POINTERDOWN) {\n this.trackedPointers_[id] = event;\n } else if (id in this.trackedPointers_) {\n // update only when there was a pointerdown event for this pointer\n this.trackedPointers_[id] = event;\n }\n this.targetPointers = getValues(this.trackedPointers_);\n }\n }\n}\n\n/**\n * @param {Array<PointerEvent>} pointerEvents List of events.\n * @return {import(\"../pixel.js\").Pixel} Centroid pixel.\n */\nexport function centroid(pointerEvents) {\n const length = pointerEvents.length;\n let clientX = 0;\n let clientY = 0;\n for (let i = 0; i < length; i++) {\n clientX += pointerEvents[i].clientX;\n clientY += pointerEvents[i].clientY;\n }\n return [clientX / length, clientY / length];\n}\n\n/**\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Event.\n * @return {boolean} Whether the event is a pointerdown, pointerdrag\n * or pointerup event.\n */\nfunction isPointerDraggingEvent(mapBrowserEvent) {\n const type = mapBrowserEvent.type;\n return (\n type === MapBrowserEventType.POINTERDOWN ||\n type === MapBrowserEventType.POINTERDRAG ||\n type === MapBrowserEventType.POINTERUP\n );\n}\n\nexport default PointerInteraction;\n","/**\n * @module ol/events/condition\n */\nimport MapBrowserEventType from '../MapBrowserEventType.js';\nimport {FALSE, TRUE} from '../functions.js';\nimport {MAC, WEBKIT} from '../has.js';\nimport {assert} from '../asserts.js';\n\n/**\n * A function that takes an {@link module:ol/MapBrowserEvent} and returns a\n * `{boolean}`. If the condition is met, true should be returned.\n *\n * @typedef {function(this: ?, import(\"../MapBrowserEvent.js\").default): boolean} Condition\n */\n\n/**\n * Creates a condition function that passes when all provided conditions pass.\n * @param {...Condition} var_args Conditions to check.\n * @return {Condition} Condition function.\n */\nexport function all(var_args) {\n const conditions = arguments;\n /**\n * @param {import(\"../MapBrowserEvent.js\").default} event Event.\n * @return {boolean} All conditions passed.\n */\n return function (event) {\n let pass = true;\n for (let i = 0, ii = conditions.length; i < ii; ++i) {\n pass = pass && conditions[i](event);\n if (!pass) {\n break;\n }\n }\n return pass;\n };\n}\n\n/**\n * Return `true` if only the alt-key is pressed, `false` otherwise (e.g. when\n * additionally the shift-key is pressed).\n *\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} True if only the alt key is pressed.\n * @api\n */\nexport const altKeyOnly = function (mapBrowserEvent) {\n const originalEvent = /** @type {KeyboardEvent|MouseEvent|TouchEvent} */ (mapBrowserEvent.originalEvent);\n return (\n originalEvent.altKey &&\n !(originalEvent.metaKey || originalEvent.ctrlKey) &&\n !originalEvent.shiftKey\n );\n};\n\n/**\n * Return `true` if only the alt-key and shift-key is pressed, `false` otherwise\n * (e.g. when additionally the platform-modifier-key is pressed).\n *\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} True if only the alt and shift keys are pressed.\n * @api\n */\nexport const altShiftKeysOnly = function (mapBrowserEvent) {\n const originalEvent = /** @type {KeyboardEvent|MouseEvent|TouchEvent} */ (mapBrowserEvent.originalEvent);\n return (\n originalEvent.altKey &&\n !(originalEvent.metaKey || originalEvent.ctrlKey) &&\n originalEvent.shiftKey\n );\n};\n\n/**\n * Return `true` if the map has the focus. This condition requires a map target\n * element with a `tabindex` attribute, e.g. `<div id=\"map\" tabindex=\"1\">`.\n *\n * @param {import(\"../MapBrowserEvent.js\").default} event Map browser event.\n * @return {boolean} The map has the focus.\n * @api\n */\nexport const focus = function (event) {\n return event.target.getTargetElement().contains(document.activeElement);\n};\n\n/**\n * Return `true` if the map has the focus or no 'tabindex' attribute set.\n *\n * @param {import(\"../MapBrowserEvent.js\").default} event Map browser event.\n * @return {boolean} The map container has the focus or no 'tabindex' attribute.\n */\nexport const focusWithTabindex = function (event) {\n return event.map.getTargetElement().hasAttribute('tabindex')\n ? focus(event)\n : true;\n};\n\n/**\n * Return always true.\n *\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} True.\n * @api\n */\nexport const always = TRUE;\n\n/**\n * Return `true` if the event is a `click` event, `false` otherwise.\n *\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} True if the event is a map `click` event.\n * @api\n */\nexport const click = function (mapBrowserEvent) {\n return mapBrowserEvent.type == MapBrowserEventType.CLICK;\n};\n\n/**\n * Return `true` if the event has an \"action\"-producing mouse button.\n *\n * By definition, this includes left-click on windows/linux, and left-click\n * without the ctrl key on Macs.\n *\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} The result.\n */\nexport const mouseActionButton = function (mapBrowserEvent) {\n const originalEvent = /** @type {MouseEvent} */ (mapBrowserEvent.originalEvent);\n return originalEvent.button == 0 && !(WEBKIT && MAC && originalEvent.ctrlKey);\n};\n\n/**\n * Return always false.\n *\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} False.\n * @api\n */\nexport const never = FALSE;\n\n/**\n * Return `true` if the browser event is a `pointermove` event, `false`\n * otherwise.\n *\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} True if the browser event is a `pointermove` event.\n * @api\n */\nexport const pointerMove = function (mapBrowserEvent) {\n return mapBrowserEvent.type == 'pointermove';\n};\n\n/**\n * Return `true` if the event is a map `singleclick` event, `false` otherwise.\n *\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} True if the event is a map `singleclick` event.\n * @api\n */\nexport const singleClick = function (mapBrowserEvent) {\n return mapBrowserEvent.type == MapBrowserEventType.SINGLECLICK;\n};\n\n/**\n * Return `true` if the event is a map `dblclick` event, `false` otherwise.\n *\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} True if the event is a map `dblclick` event.\n * @api\n */\nexport const doubleClick = function (mapBrowserEvent) {\n return mapBrowserEvent.type == MapBrowserEventType.DBLCLICK;\n};\n\n/**\n * Return `true` if no modifier key (alt-, shift- or platform-modifier-key) is\n * pressed.\n *\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} True only if there no modifier keys are pressed.\n * @api\n */\nexport const noModifierKeys = function (mapBrowserEvent) {\n const originalEvent = /** @type {KeyboardEvent|MouseEvent|TouchEvent} */ (mapBrowserEvent.originalEvent);\n return (\n !originalEvent.altKey &&\n !(originalEvent.metaKey || originalEvent.ctrlKey) &&\n !originalEvent.shiftKey\n );\n};\n\n/**\n * Return `true` if only the platform-modifier-key (the meta-key on Mac,\n * ctrl-key otherwise) is pressed, `false` otherwise (e.g. when additionally\n * the shift-key is pressed).\n *\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} True if only the platform modifier key is pressed.\n * @api\n */\nexport const platformModifierKeyOnly = function (mapBrowserEvent) {\n const originalEvent = /** @type {KeyboardEvent|MouseEvent|TouchEvent} */ (mapBrowserEvent.originalEvent);\n return (\n !originalEvent.altKey &&\n (MAC ? originalEvent.metaKey : originalEvent.ctrlKey) &&\n !originalEvent.shiftKey\n );\n};\n\n/**\n * Return `true` if only the shift-key is pressed, `false` otherwise (e.g. when\n * additionally the alt-key is pressed).\n *\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} True if only the shift key is pressed.\n * @api\n */\nexport const shiftKeyOnly = function (mapBrowserEvent) {\n const originalEvent = /** @type {KeyboardEvent|MouseEvent|TouchEvent} */ (mapBrowserEvent.originalEvent);\n return (\n !originalEvent.altKey &&\n !(originalEvent.metaKey || originalEvent.ctrlKey) &&\n originalEvent.shiftKey\n );\n};\n\n/**\n * Return `true` if the target element is not editable, i.e. not a `<input>`-,\n * `<select>`- or `<textarea>`-element, `false` otherwise.\n *\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} True only if the target element is not editable.\n * @api\n */\nexport const targetNotEditable = function (mapBrowserEvent) {\n const originalEvent = /** @type {KeyboardEvent|MouseEvent|TouchEvent} */ (mapBrowserEvent.originalEvent);\n const tagName = /** @type {Element} */ (originalEvent.target).tagName;\n return tagName !== 'INPUT' && tagName !== 'SELECT' && tagName !== 'TEXTAREA';\n};\n\n/**\n * Return `true` if the event originates from a mouse device.\n *\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} True if the event originates from a mouse device.\n * @api\n */\nexport const mouseOnly = function (mapBrowserEvent) {\n const pointerEvent = /** @type {import(\"../MapBrowserEvent\").default} */ (mapBrowserEvent)\n .originalEvent;\n assert(pointerEvent !== undefined, 56); // mapBrowserEvent must originate from a pointer event\n // see http://www.w3.org/TR/pointerevents/#widl-PointerEvent-pointerType\n return pointerEvent.pointerType == 'mouse';\n};\n\n/**\n * Return `true` if the event originates from a touchable device.\n *\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} True if the event originates from a touchable device.\n * @api\n */\nexport const touchOnly = function (mapBrowserEvent) {\n const pointerEvt = /** @type {import(\"../MapBrowserEvent\").default} */ (mapBrowserEvent)\n .originalEvent;\n assert(pointerEvt !== undefined, 56); // mapBrowserEvent must originate from a pointer event\n // see http://www.w3.org/TR/pointerevents/#widl-PointerEvent-pointerType\n return pointerEvt.pointerType === 'touch';\n};\n\n/**\n * Return `true` if the event originates from a digital pen.\n *\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} True if the event originates from a digital pen.\n * @api\n */\nexport const penOnly = function (mapBrowserEvent) {\n const pointerEvt = /** @type {import(\"../MapBrowserEvent\").default} */ (mapBrowserEvent)\n .originalEvent;\n assert(pointerEvt !== undefined, 56); // mapBrowserEvent must originate from a pointer event\n // see http://www.w3.org/TR/pointerevents/#widl-PointerEvent-pointerType\n return pointerEvt.pointerType === 'pen';\n};\n\n/**\n * Return `true` if the event originates from a primary pointer in\n * contact with the surface or if the left mouse button is pressed.\n * See http://www.w3.org/TR/pointerevents/#button-states.\n *\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} True if the event originates from a primary pointer.\n * @api\n */\nexport const primaryAction = function (mapBrowserEvent) {\n const pointerEvent = /** @type {import(\"../MapBrowserEvent\").default} */ (mapBrowserEvent)\n .originalEvent;\n assert(pointerEvent !== undefined, 56); // mapBrowserEvent must originate from a pointer event\n return pointerEvent.isPrimary && pointerEvent.button === 0;\n};\n","/**\n * @module ol/interaction/DragPan\n */\nimport PointerInteraction, {\n centroid as centroidFromPointers,\n} from './Pointer.js';\nimport {FALSE} from '../functions.js';\nimport {\n all,\n focusWithTabindex,\n noModifierKeys,\n primaryAction,\n} from '../events/condition.js';\nimport {easeOut} from '../easing.js';\nimport {\n rotate as rotateCoordinate,\n scale as scaleCoordinate,\n} from '../coordinate.js';\n\n/**\n * @typedef {Object} Options\n * @property {import(\"../events/condition.js\").Condition} [condition] A function that takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a boolean\n * to indicate whether that event should be handled.\n * Default is {@link module:ol/events/condition~noModifierKeys} and {@link module:ol/events/condition~primaryAction}.\n * @property {boolean} [onFocusOnly=false] When the map's target has a `tabindex` attribute set,\n * the interaction will only handle events when the map has the focus.\n * @property {import(\"../Kinetic.js\").default} [kinetic] Kinetic inertia to apply to the pan.\n */\n\n/**\n * @classdesc\n * Allows the user to pan the map by dragging the map.\n * @api\n */\nclass DragPan extends PointerInteraction {\n /**\n * @param {Options=} opt_options Options.\n */\n constructor(opt_options) {\n super({\n stopDown: FALSE,\n });\n\n const options = opt_options ? opt_options : {};\n\n /**\n * @private\n * @type {import(\"../Kinetic.js\").default|undefined}\n */\n this.kinetic_ = options.kinetic;\n\n /**\n * @type {import(\"../pixel.js\").Pixel}\n */\n this.lastCentroid = null;\n\n /**\n * @type {number}\n */\n this.lastPointersCount_;\n\n /**\n * @type {boolean}\n */\n this.panning_ = false;\n\n const condition = options.condition\n ? options.condition\n : all(noModifierKeys, primaryAction);\n\n /**\n * @private\n * @type {import(\"../events/condition.js\").Condition}\n */\n this.condition_ = options.onFocusOnly\n ? all(focusWithTabindex, condition)\n : condition;\n\n /**\n * @private\n * @type {boolean}\n */\n this.noKinetic_ = false;\n }\n\n /**\n * Handle pointer drag events.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Event.\n */\n handleDragEvent(mapBrowserEvent) {\n if (!this.panning_) {\n this.panning_ = true;\n this.getMap().getView().beginInteraction();\n }\n const targetPointers = this.targetPointers;\n const centroid = centroidFromPointers(targetPointers);\n if (targetPointers.length == this.lastPointersCount_) {\n if (this.kinetic_) {\n this.kinetic_.update(centroid[0], centroid[1]);\n }\n if (this.lastCentroid) {\n const delta = [\n this.lastCentroid[0] - centroid[0],\n centroid[1] - this.lastCentroid[1],\n ];\n const map = mapBrowserEvent.map;\n const view = map.getView();\n scaleCoordinate(delta, view.getResolution());\n rotateCoordinate(delta, view.getRotation());\n view.adjustCenterInternal(delta);\n }\n } else if (this.kinetic_) {\n // reset so we don't overestimate the kinetic energy after\n // after one finger down, tiny drag, second finger down\n this.kinetic_.begin();\n }\n this.lastCentroid = centroid;\n this.lastPointersCount_ = targetPointers.length;\n mapBrowserEvent.originalEvent.preventDefault();\n }\n\n /**\n * Handle pointer up events.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Event.\n * @return {boolean} If the event was consumed.\n */\n handleUpEvent(mapBrowserEvent) {\n const map = mapBrowserEvent.map;\n const view = map.getView();\n if (this.targetPointers.length === 0) {\n if (!this.noKinetic_ && this.kinetic_ && this.kinetic_.end()) {\n const distance = this.kinetic_.getDistance();\n const angle = this.kinetic_.getAngle();\n const center = view.getCenterInternal();\n const centerpx = map.getPixelFromCoordinateInternal(center);\n const dest = map.getCoordinateFromPixelInternal([\n centerpx[0] - distance * Math.cos(angle),\n centerpx[1] - distance * Math.sin(angle),\n ]);\n view.animateInternal({\n center: view.getConstrainedCenter(dest),\n duration: 500,\n easing: easeOut,\n });\n }\n if (this.panning_) {\n this.panning_ = false;\n view.endInteraction();\n }\n return false;\n } else {\n if (this.kinetic_) {\n // reset so we don't overestimate the kinetic energy after\n // after one finger up, tiny drag, second finger up\n this.kinetic_.begin();\n }\n this.lastCentroid = null;\n return true;\n }\n }\n\n /**\n * Handle pointer down events.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Event.\n * @return {boolean} If the event was consumed.\n */\n handleDownEvent(mapBrowserEvent) {\n if (this.targetPointers.length > 0 && this.condition_(mapBrowserEvent)) {\n const map = mapBrowserEvent.map;\n const view = map.getView();\n this.lastCentroid = null;\n // stop any current animation\n if (view.getAnimating()) {\n view.cancelAnimations();\n }\n if (this.kinetic_) {\n this.kinetic_.begin();\n }\n // No kinetic as soon as more than one pointer on the screen is\n // detected. This is to prevent nasty pans after pinch.\n this.noKinetic_ = this.targetPointers.length > 1;\n return true;\n } else {\n return false;\n }\n }\n}\n\nexport default DragPan;\n","/**\n * @module ol/interaction/DragRotate\n */\nimport PointerInteraction from './Pointer.js';\nimport {FALSE} from '../functions.js';\nimport {\n altShiftKeysOnly,\n mouseActionButton,\n mouseOnly,\n} from '../events/condition.js';\nimport {disable} from '../rotationconstraint.js';\n\n/**\n * @typedef {Object} Options\n * @property {import(\"../events/condition.js\").Condition} [condition] A function that takes an\n * {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a boolean\n * to indicate whether that event should be handled.\n * Default is {@link module:ol/events/condition~altShiftKeysOnly}.\n * @property {number} [duration=250] Animation duration in milliseconds.\n */\n\n/**\n * @classdesc\n * Allows the user to rotate the map by clicking and dragging on the map,\n * normally combined with an {@link module:ol/events/condition} that limits\n * it to when the alt and shift keys are held down.\n *\n * This interaction is only supported for mouse devices.\n * @api\n */\nclass DragRotate extends PointerInteraction {\n /**\n * @param {Options=} opt_options Options.\n */\n constructor(opt_options) {\n const options = opt_options ? opt_options : {};\n\n super({\n stopDown: FALSE,\n });\n\n /**\n * @private\n * @type {import(\"../events/condition.js\").Condition}\n */\n this.condition_ = options.condition ? options.condition : altShiftKeysOnly;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.lastAngle_ = undefined;\n\n /**\n * @private\n * @type {number}\n */\n this.duration_ = options.duration !== undefined ? options.duration : 250;\n }\n\n /**\n * Handle pointer drag events.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Event.\n */\n handleDragEvent(mapBrowserEvent) {\n if (!mouseOnly(mapBrowserEvent)) {\n return;\n }\n\n const map = mapBrowserEvent.map;\n const view = map.getView();\n if (view.getConstraints().rotation === disable) {\n return;\n }\n const size = map.getSize();\n const offset = mapBrowserEvent.pixel;\n const theta = Math.atan2(size[1] / 2 - offset[1], offset[0] - size[0] / 2);\n if (this.lastAngle_ !== undefined) {\n const delta = theta - this.lastAngle_;\n view.adjustRotationInternal(-delta);\n }\n this.lastAngle_ = theta;\n }\n\n /**\n * Handle pointer up events.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Event.\n * @return {boolean} If the event was consumed.\n */\n handleUpEvent(mapBrowserEvent) {\n if (!mouseOnly(mapBrowserEvent)) {\n return true;\n }\n\n const map = mapBrowserEvent.map;\n const view = map.getView();\n view.endInteraction(this.duration_);\n return false;\n }\n\n /**\n * Handle pointer down events.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Event.\n * @return {boolean} If the event was consumed.\n */\n handleDownEvent(mapBrowserEvent) {\n if (!mouseOnly(mapBrowserEvent)) {\n return false;\n }\n\n if (\n mouseActionButton(mapBrowserEvent) &&\n this.condition_(mapBrowserEvent)\n ) {\n const map = mapBrowserEvent.map;\n map.getView().beginInteraction();\n this.lastAngle_ = undefined;\n return true;\n } else {\n return false;\n }\n }\n}\n\nexport default DragRotate;\n","/**\n * @module ol/render/Box\n */\n\nimport Disposable from '../Disposable.js';\nimport Polygon from '../geom/Polygon.js';\n\nclass RenderBox extends Disposable {\n /**\n * @param {string} className CSS class name.\n */\n constructor(className) {\n super();\n\n /**\n * @type {import(\"../geom/Polygon.js\").default}\n * @private\n */\n this.geometry_ = null;\n\n /**\n * @type {HTMLDivElement}\n * @private\n */\n this.element_ = document.createElement('div');\n this.element_.style.position = 'absolute';\n this.element_.style.pointerEvents = 'auto';\n this.element_.className = 'ol-box ' + className;\n\n /**\n * @private\n * @type {import(\"../PluggableMap.js\").default}\n */\n this.map_ = null;\n\n /**\n * @private\n * @type {import(\"../pixel.js\").Pixel}\n */\n this.startPixel_ = null;\n\n /**\n * @private\n * @type {import(\"../pixel.js\").Pixel}\n */\n this.endPixel_ = null;\n }\n\n /**\n * Clean up.\n */\n disposeInternal() {\n this.setMap(null);\n }\n\n /**\n * @private\n */\n render_() {\n const startPixel = this.startPixel_;\n const endPixel = this.endPixel_;\n const px = 'px';\n const style = this.element_.style;\n style.left = Math.min(startPixel[0], endPixel[0]) + px;\n style.top = Math.min(startPixel[1], endPixel[1]) + px;\n style.width = Math.abs(endPixel[0] - startPixel[0]) + px;\n style.height = Math.abs(endPixel[1] - startPixel[1]) + px;\n }\n\n /**\n * @param {import(\"../PluggableMap.js\").default} map Map.\n */\n setMap(map) {\n if (this.map_) {\n this.map_.getOverlayContainer().removeChild(this.element_);\n const style = this.element_.style;\n style.left = 'inherit';\n style.top = 'inherit';\n style.width = 'inherit';\n style.height = 'inherit';\n }\n this.map_ = map;\n if (this.map_) {\n this.map_.getOverlayContainer().appendChild(this.element_);\n }\n }\n\n /**\n * @param {import(\"../pixel.js\").Pixel} startPixel Start pixel.\n * @param {import(\"../pixel.js\").Pixel} endPixel End pixel.\n */\n setPixels(startPixel, endPixel) {\n this.startPixel_ = startPixel;\n this.endPixel_ = endPixel;\n this.createOrUpdateGeometry();\n this.render_();\n }\n\n /**\n * Creates or updates the cached geometry.\n */\n createOrUpdateGeometry() {\n const startPixel = this.startPixel_;\n const endPixel = this.endPixel_;\n const pixels = [\n startPixel,\n [startPixel[0], endPixel[1]],\n endPixel,\n [endPixel[0], startPixel[1]],\n ];\n const coordinates = pixels.map(\n this.map_.getCoordinateFromPixelInternal,\n this.map_\n );\n // close the polygon\n coordinates[4] = coordinates[0].slice();\n if (!this.geometry_) {\n this.geometry_ = new Polygon([coordinates]);\n } else {\n this.geometry_.setCoordinates([coordinates]);\n }\n }\n\n /**\n * @return {import(\"../geom/Polygon.js\").default} Geometry.\n */\n getGeometry() {\n return this.geometry_;\n }\n}\n\nexport default RenderBox;\n","/**\n * @module ol/interaction/DragBox\n */\n// FIXME draw drag box\nimport Event from '../events/Event.js';\nimport PointerInteraction from './Pointer.js';\nimport RenderBox from '../render/Box.js';\nimport {mouseActionButton} from '../events/condition.js';\n\n/**\n * A function that takes a {@link module:ol/MapBrowserEvent} and two\n * {@link module:ol/pixel~Pixel}s and returns a `{boolean}`. If the condition is met,\n * true should be returned.\n * @typedef {function(this: ?, import(\"../MapBrowserEvent.js\").default, import(\"../pixel.js\").Pixel, import(\"../pixel.js\").Pixel):boolean} EndCondition\n */\n\n/**\n * @typedef {Object} Options\n * @property {string} [className='ol-dragbox'] CSS class name for styling the box.\n * @property {import(\"../events/condition.js\").Condition} [condition] A function that takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a boolean\n * to indicate whether that event should be handled.\n * Default is {@link ol/events/condition~mouseActionButton}.\n * @property {number} [minArea=64] The minimum area of the box in pixel, this value is used by the default\n * `boxEndCondition` function.\n * @property {EndCondition} [boxEndCondition] A function that takes a {@link module:ol/MapBrowserEvent~MapBrowserEvent} and two\n * {@link module:ol/pixel~Pixel}s to indicate whether a `boxend` event should be fired.\n * Default is `true` if the area of the box is bigger than the `minArea` option.\n * @property {function(this:DragBox, import(\"../MapBrowserEvent.js\").default):void} [onBoxEnd] Code to execute just\n * before `boxend` is fired.\n */\n\n/**\n * @enum {string}\n */\nconst DragBoxEventType = {\n /**\n * Triggered upon drag box start.\n * @event DragBoxEvent#boxstart\n * @api\n */\n BOXSTART: 'boxstart',\n\n /**\n * Triggered on drag when box is active.\n * @event DragBoxEvent#boxdrag\n * @api\n */\n BOXDRAG: 'boxdrag',\n\n /**\n * Triggered upon drag box end.\n * @event DragBoxEvent#boxend\n * @api\n */\n BOXEND: 'boxend',\n};\n\n/**\n * @classdesc\n * Events emitted by {@link module:ol/interaction/DragBox~DragBox} instances are instances of\n * this type.\n */\nclass DragBoxEvent extends Event {\n /**\n * @param {string} type The event type.\n * @param {import(\"../coordinate.js\").Coordinate} coordinate The event coordinate.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Originating event.\n */\n constructor(type, coordinate, mapBrowserEvent) {\n super(type);\n\n /**\n * The coordinate of the drag event.\n * @const\n * @type {import(\"../coordinate.js\").Coordinate}\n * @api\n */\n this.coordinate = coordinate;\n\n /**\n * @const\n * @type {import(\"../MapBrowserEvent.js\").default}\n * @api\n */\n this.mapBrowserEvent = mapBrowserEvent;\n }\n}\n\n/**\n * @classdesc\n * Allows the user to draw a vector box by clicking and dragging on the map,\n * normally combined with an {@link module:ol/events/condition} that limits\n * it to when the shift or other key is held down. This is used, for example,\n * for zooming to a specific area of the map\n * (see {@link module:ol/interaction/DragZoom~DragZoom} and\n * {@link module:ol/interaction/DragRotateAndZoom}).\n *\n * @fires DragBoxEvent\n * @api\n */\nclass DragBox extends PointerInteraction {\n /**\n * @param {Options=} opt_options Options.\n */\n constructor(opt_options) {\n super();\n\n const options = opt_options ? opt_options : {};\n\n /**\n * @type {import(\"../render/Box.js\").default}\n * @private\n */\n this.box_ = new RenderBox(options.className || 'ol-dragbox');\n\n /**\n * @type {number}\n * @private\n */\n this.minArea_ = options.minArea !== undefined ? options.minArea : 64;\n\n if (options.onBoxEnd) {\n this.onBoxEnd = options.onBoxEnd;\n }\n\n /**\n * @type {import(\"../pixel.js\").Pixel}\n * @private\n */\n this.startPixel_ = null;\n\n /**\n * @private\n * @type {import(\"../events/condition.js\").Condition}\n */\n this.condition_ = options.condition ? options.condition : mouseActionButton;\n\n /**\n * @private\n * @type {EndCondition}\n */\n this.boxEndCondition_ = options.boxEndCondition\n ? options.boxEndCondition\n : this.defaultBoxEndCondition;\n }\n\n /**\n * The default condition for determining whether the boxend event\n * should fire.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent The originating MapBrowserEvent\n * leading to the box end.\n * @param {import(\"../pixel.js\").Pixel} startPixel The starting pixel of the box.\n * @param {import(\"../pixel.js\").Pixel} endPixel The end pixel of the box.\n * @return {boolean} Whether or not the boxend condition should be fired.\n */\n defaultBoxEndCondition(mapBrowserEvent, startPixel, endPixel) {\n const width = endPixel[0] - startPixel[0];\n const height = endPixel[1] - startPixel[1];\n return width * width + height * height >= this.minArea_;\n }\n\n /**\n * Returns geometry of last drawn box.\n * @return {import(\"../geom/Polygon.js\").default} Geometry.\n * @api\n */\n getGeometry() {\n return this.box_.getGeometry();\n }\n\n /**\n * Handle pointer drag events.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Event.\n */\n handleDragEvent(mapBrowserEvent) {\n this.box_.setPixels(this.startPixel_, mapBrowserEvent.pixel);\n\n this.dispatchEvent(\n new DragBoxEvent(\n DragBoxEventType.BOXDRAG,\n mapBrowserEvent.coordinate,\n mapBrowserEvent\n )\n );\n }\n\n /**\n * Handle pointer up events.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Event.\n * @return {boolean} If the event was consumed.\n */\n handleUpEvent(mapBrowserEvent) {\n this.box_.setMap(null);\n\n if (\n this.boxEndCondition_(\n mapBrowserEvent,\n this.startPixel_,\n mapBrowserEvent.pixel\n )\n ) {\n this.onBoxEnd(mapBrowserEvent);\n this.dispatchEvent(\n new DragBoxEvent(\n DragBoxEventType.BOXEND,\n mapBrowserEvent.coordinate,\n mapBrowserEvent\n )\n );\n }\n return false;\n }\n\n /**\n * Handle pointer down events.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Event.\n * @return {boolean} If the event was consumed.\n */\n handleDownEvent(mapBrowserEvent) {\n if (this.condition_(mapBrowserEvent)) {\n this.startPixel_ = mapBrowserEvent.pixel;\n this.box_.setMap(mapBrowserEvent.map);\n this.box_.setPixels(this.startPixel_, this.startPixel_);\n this.dispatchEvent(\n new DragBoxEvent(\n DragBoxEventType.BOXSTART,\n mapBrowserEvent.coordinate,\n mapBrowserEvent\n )\n );\n return true;\n } else {\n return false;\n }\n }\n\n /**\n * Function to execute just before `onboxend` is fired\n * @param {import(\"../MapBrowserEvent.js\").default} event Event.\n */\n onBoxEnd(event) {}\n}\n\nexport default DragBox;\n","/**\n * @module ol/interaction/DragZoom\n */\nimport DragBox from './DragBox.js';\nimport {\n createOrUpdateFromCoordinates,\n getBottomLeft,\n getCenter,\n getTopRight,\n scaleFromCenter,\n} from '../extent.js';\nimport {easeOut} from '../easing.js';\nimport {shiftKeyOnly} from '../events/condition.js';\n\n/**\n * @typedef {Object} Options\n * @property {string} [className='ol-dragzoom'] CSS class name for styling the\n * box.\n * @property {import(\"../events/condition.js\").Condition} [condition] A function that\n * takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a\n * boolean to indicate whether that event should be handled.\n * Default is {@link module:ol/events/condition~shiftKeyOnly}.\n * @property {number} [duration=200] Animation duration in milliseconds.\n * @property {boolean} [out=false] Use interaction for zooming out.\n * @property {number} [minArea=64] The minimum area of the box in pixel, this value is used by the parent default\n * `boxEndCondition` function.\n */\n\n/**\n * @classdesc\n * Allows the user to zoom the map by clicking and dragging on the map,\n * normally combined with an {@link module:ol/events/condition} that limits\n * it to when a key, shift by default, is held down.\n *\n * To change the style of the box, use CSS and the `.ol-dragzoom` selector, or\n * your custom one configured with `className`.\n * @api\n */\nclass DragZoom extends DragBox {\n /**\n * @param {Options=} opt_options Options.\n */\n constructor(opt_options) {\n const options = opt_options ? opt_options : {};\n\n const condition = options.condition ? options.condition : shiftKeyOnly;\n\n super({\n condition: condition,\n className: options.className || 'ol-dragzoom',\n minArea: options.minArea,\n });\n\n /**\n * @private\n * @type {number}\n */\n this.duration_ = options.duration !== undefined ? options.duration : 200;\n\n /**\n * @private\n * @type {boolean}\n */\n this.out_ = options.out !== undefined ? options.out : false;\n }\n\n /**\n * Function to execute just before `onboxend` is fired\n * @param {import(\"../MapBrowserEvent.js\").default} event Event.\n */\n onBoxEnd(event) {\n const map = this.getMap();\n const view = /** @type {!import(\"../View.js\").default} */ (map.getView());\n const size = /** @type {!import(\"../size.js\").Size} */ (map.getSize());\n let extent = this.getGeometry().getExtent();\n\n if (this.out_) {\n const mapExtent = view.calculateExtentInternal(size);\n const boxPixelExtent = createOrUpdateFromCoordinates([\n map.getPixelFromCoordinateInternal(getBottomLeft(extent)),\n map.getPixelFromCoordinateInternal(getTopRight(extent)),\n ]);\n const factor = view.getResolutionForExtentInternal(boxPixelExtent, size);\n\n scaleFromCenter(mapExtent, 1 / factor);\n extent = mapExtent;\n }\n\n const resolution = view.getConstrainedResolution(\n view.getResolutionForExtentInternal(extent, size)\n );\n const center = view.getConstrainedCenter(getCenter(extent), resolution);\n\n view.animateInternal({\n resolution: resolution,\n center: center,\n duration: this.duration_,\n easing: easeOut,\n });\n }\n}\n\nexport default DragZoom;\n","/**\n * @module ol/events/KeyCode\n */\n\n/**\n * @enum {number}\n * @const\n */\nexport default {\n LEFT: 37,\n UP: 38,\n RIGHT: 39,\n DOWN: 40,\n};\n","/**\n * @module ol/interaction/KeyboardPan\n */\nimport EventType from '../events/EventType.js';\nimport Interaction, {pan} from './Interaction.js';\nimport KeyCode from '../events/KeyCode.js';\nimport {noModifierKeys, targetNotEditable} from '../events/condition.js';\nimport {rotate as rotateCoordinate} from '../coordinate.js';\n\n/**\n * @typedef {Object} Options\n * @property {import(\"../events/condition.js\").Condition} [condition] A function that\n * takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a\n * boolean to indicate whether that event should be handled. Default is\n * {@link module:ol/events/condition~noModifierKeys} and\n * {@link module:ol/events/condition~targetNotEditable}.\n * @property {number} [duration=100] Animation duration in milliseconds.\n * @property {number} [pixelDelta=128] The amount of pixels to pan on each key\n * press.\n */\n\n/**\n * @classdesc\n * Allows the user to pan the map using keyboard arrows.\n * Note that, although this interaction is by default included in maps,\n * the keys can only be used when browser focus is on the element to which\n * the keyboard events are attached. By default, this is the map div,\n * though you can change this with the `keyboardEventTarget` in\n * {@link module:ol/Map~Map}. `document` never loses focus but, for any other\n * element, focus will have to be on, and returned to, this element if the keys\n * are to function.\n * See also {@link module:ol/interaction/KeyboardZoom~KeyboardZoom}.\n * @api\n */\nclass KeyboardPan extends Interaction {\n /**\n * @param {Options=} opt_options Options.\n */\n constructor(opt_options) {\n super();\n\n const options = opt_options || {};\n\n /**\n * @private\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Browser event.\n * @return {boolean} Combined condition result.\n */\n this.defaultCondition_ = function (mapBrowserEvent) {\n return (\n noModifierKeys(mapBrowserEvent) && targetNotEditable(mapBrowserEvent)\n );\n };\n\n /**\n * @private\n * @type {import(\"../events/condition.js\").Condition}\n */\n this.condition_ =\n options.condition !== undefined\n ? options.condition\n : this.defaultCondition_;\n\n /**\n * @private\n * @type {number}\n */\n this.duration_ = options.duration !== undefined ? options.duration : 100;\n\n /**\n * @private\n * @type {number}\n */\n this.pixelDelta_ =\n options.pixelDelta !== undefined ? options.pixelDelta : 128;\n }\n\n /**\n * Handles the {@link module:ol/MapBrowserEvent map browser event} if it was a\n * `KeyEvent`, and decides the direction to pan to (if an arrow key was\n * pressed).\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} `false` to stop event propagation.\n * @this {KeyboardPan}\n */\n handleEvent(mapBrowserEvent) {\n let stopEvent = false;\n if (mapBrowserEvent.type == EventType.KEYDOWN) {\n const keyEvent = /** @type {KeyboardEvent} */ (mapBrowserEvent.originalEvent);\n const keyCode = keyEvent.keyCode;\n if (\n this.condition_(mapBrowserEvent) &&\n (keyCode == KeyCode.DOWN ||\n keyCode == KeyCode.LEFT ||\n keyCode == KeyCode.RIGHT ||\n keyCode == KeyCode.UP)\n ) {\n const map = mapBrowserEvent.map;\n const view = map.getView();\n const mapUnitsDelta = view.getResolution() * this.pixelDelta_;\n let deltaX = 0,\n deltaY = 0;\n if (keyCode == KeyCode.DOWN) {\n deltaY = -mapUnitsDelta;\n } else if (keyCode == KeyCode.LEFT) {\n deltaX = -mapUnitsDelta;\n } else if (keyCode == KeyCode.RIGHT) {\n deltaX = mapUnitsDelta;\n } else {\n deltaY = mapUnitsDelta;\n }\n const delta = [deltaX, deltaY];\n rotateCoordinate(delta, view.getRotation());\n pan(view, delta, this.duration_);\n mapBrowserEvent.preventDefault();\n stopEvent = true;\n }\n }\n return !stopEvent;\n }\n}\n\nexport default KeyboardPan;\n","/**\n * @module ol/interaction/KeyboardZoom\n */\nimport EventType from '../events/EventType.js';\nimport Interaction, {zoomByDelta} from './Interaction.js';\nimport {targetNotEditable} from '../events/condition.js';\n\n/**\n * @typedef {Object} Options\n * @property {number} [duration=100] Animation duration in milliseconds.\n * @property {import(\"../events/condition.js\").Condition} [condition] A function that\n * takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a\n * boolean to indicate whether that event should be handled. Default is\n * {@link module:ol/events/condition~targetNotEditable}.\n * @property {number} [delta=1] The zoom level delta on each key press.\n */\n\n/**\n * @classdesc\n * Allows the user to zoom the map using keyboard + and -.\n * Note that, although this interaction is by default included in maps,\n * the keys can only be used when browser focus is on the element to which\n * the keyboard events are attached. By default, this is the map div,\n * though you can change this with the `keyboardEventTarget` in\n * {@link module:ol/Map~Map}. `document` never loses focus but, for any other\n * element, focus will have to be on, and returned to, this element if the keys\n * are to function.\n * See also {@link module:ol/interaction/KeyboardPan~KeyboardPan}.\n * @api\n */\nclass KeyboardZoom extends Interaction {\n /**\n * @param {Options=} opt_options Options.\n */\n constructor(opt_options) {\n super();\n\n const options = opt_options ? opt_options : {};\n\n /**\n * @private\n * @type {import(\"../events/condition.js\").Condition}\n */\n this.condition_ = options.condition ? options.condition : targetNotEditable;\n\n /**\n * @private\n * @type {number}\n */\n this.delta_ = options.delta ? options.delta : 1;\n\n /**\n * @private\n * @type {number}\n */\n this.duration_ = options.duration !== undefined ? options.duration : 100;\n }\n\n /**\n * Handles the {@link module:ol/MapBrowserEvent map browser event} if it was a\n * `KeyEvent`, and decides whether to zoom in or out (depending on whether the\n * key pressed was '+' or '-').\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} `false` to stop event propagation.\n * @this {KeyboardZoom}\n */\n handleEvent(mapBrowserEvent) {\n let stopEvent = false;\n if (\n mapBrowserEvent.type == EventType.KEYDOWN ||\n mapBrowserEvent.type == EventType.KEYPRESS\n ) {\n const keyEvent = /** @type {KeyboardEvent} */ (mapBrowserEvent.originalEvent);\n const charCode = keyEvent.charCode;\n if (\n this.condition_(mapBrowserEvent) &&\n (charCode == '+'.charCodeAt(0) || charCode == '-'.charCodeAt(0))\n ) {\n const map = mapBrowserEvent.map;\n const delta =\n charCode == '+'.charCodeAt(0) ? this.delta_ : -this.delta_;\n const view = map.getView();\n zoomByDelta(view, delta, undefined, this.duration_);\n mapBrowserEvent.preventDefault();\n stopEvent = true;\n }\n }\n return !stopEvent;\n }\n}\n\nexport default KeyboardZoom;\n","/**\n * @module ol/interaction/MouseWheelZoom\n */\nimport EventType from '../events/EventType.js';\nimport Interaction, {zoomByDelta} from './Interaction.js';\nimport {DEVICE_PIXEL_RATIO, FIREFOX} from '../has.js';\nimport {all, always, focusWithTabindex} from '../events/condition.js';\nimport {clamp} from '../math.js';\n\n/**\n * @enum {string}\n */\nexport const Mode = {\n TRACKPAD: 'trackpad',\n WHEEL: 'wheel',\n};\n\n/**\n * @typedef {Object} Options\n * @property {import(\"../events/condition.js\").Condition} [condition] A function that\n * takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a\n * boolean to indicate whether that event should be handled. Default is\n * {@link module:ol/events/condition~always}.\n * @property {boolean} [onFocusOnly=false] When the map's target has a `tabindex` attribute set,\n * the interaction will only handle events when the map has the focus.\n * @property {number} [maxDelta=1] Maximum mouse wheel delta.\n * @property {number} [duration=250] Animation duration in milliseconds.\n * @property {number} [timeout=80] Mouse wheel timeout duration in milliseconds.\n * @property {boolean} [useAnchor=true] Enable zooming using the mouse's\n * location as the anchor. When set to `false`, zooming in and out will zoom to\n * the center of the screen instead of zooming on the mouse's location.\n * @property {boolean} [constrainResolution=false] If true, the mouse wheel zoom\n * event will always animate to the closest zoom level after an interaction;\n * false means intermediary zoom levels are allowed.\n */\n\n/**\n * @classdesc\n * Allows the user to zoom the map by scrolling the mouse wheel.\n * @api\n */\nclass MouseWheelZoom extends Interaction {\n /**\n * @param {Options=} opt_options Options.\n */\n constructor(opt_options) {\n const options = opt_options ? opt_options : {};\n\n super(\n /** @type {import(\"./Interaction.js\").InteractionOptions} */ (options)\n );\n\n /**\n * @private\n * @type {number}\n */\n this.totalDelta_ = 0;\n\n /**\n * @private\n * @type {number}\n */\n this.lastDelta_ = 0;\n\n /**\n * @private\n * @type {number}\n */\n this.maxDelta_ = options.maxDelta !== undefined ? options.maxDelta : 1;\n\n /**\n * @private\n * @type {number}\n */\n this.duration_ = options.duration !== undefined ? options.duration : 250;\n\n /**\n * @private\n * @type {number}\n */\n this.timeout_ = options.timeout !== undefined ? options.timeout : 80;\n\n /**\n * @private\n * @type {boolean}\n */\n this.useAnchor_ =\n options.useAnchor !== undefined ? options.useAnchor : true;\n\n /**\n * @private\n * @type {boolean}\n */\n this.constrainResolution_ =\n options.constrainResolution !== undefined\n ? options.constrainResolution\n : false;\n\n const condition = options.condition ? options.condition : always;\n\n /**\n * @private\n * @type {import(\"../events/condition.js\").Condition}\n */\n this.condition_ = options.onFocusOnly\n ? all(focusWithTabindex, condition)\n : condition;\n\n /**\n * @private\n * @type {?import(\"../coordinate.js\").Coordinate}\n */\n this.lastAnchor_ = null;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.startTime_ = undefined;\n\n /**\n * @private\n * @type {?}\n */\n this.timeoutId_;\n\n /**\n * @private\n * @type {Mode|undefined}\n */\n this.mode_ = undefined;\n\n /**\n * Trackpad events separated by this delay will be considered separate\n * interactions.\n * @type {number}\n */\n this.trackpadEventGap_ = 400;\n\n /**\n * @type {?}\n */\n this.trackpadTimeoutId_;\n\n /**\n * The number of delta values per zoom level\n * @private\n * @type {number}\n */\n this.deltaPerZoom_ = 300;\n }\n\n /**\n * @private\n */\n endInteraction_() {\n this.trackpadTimeoutId_ = undefined;\n const view = this.getMap().getView();\n view.endInteraction(\n undefined,\n this.lastDelta_ ? (this.lastDelta_ > 0 ? 1 : -1) : 0,\n this.lastAnchor_\n );\n }\n\n /**\n * Handles the {@link module:ol/MapBrowserEvent map browser event} (if it was a mousewheel-event) and eventually\n * zooms the map.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} `false` to stop event propagation.\n */\n handleEvent(mapBrowserEvent) {\n if (!this.condition_(mapBrowserEvent)) {\n return true;\n }\n const type = mapBrowserEvent.type;\n if (type !== EventType.WHEEL) {\n return true;\n }\n\n mapBrowserEvent.preventDefault();\n\n const map = mapBrowserEvent.map;\n const wheelEvent = /** @type {WheelEvent} */ (mapBrowserEvent.originalEvent);\n\n if (this.useAnchor_) {\n this.lastAnchor_ = mapBrowserEvent.coordinate;\n }\n\n // Delta normalisation inspired by\n // https://github.com/mapbox/mapbox-gl-js/blob/001c7b9/js/ui/handler/scroll_zoom.js\n let delta;\n if (mapBrowserEvent.type == EventType.WHEEL) {\n delta = wheelEvent.deltaY;\n if (FIREFOX && wheelEvent.deltaMode === WheelEvent.DOM_DELTA_PIXEL) {\n delta /= DEVICE_PIXEL_RATIO;\n }\n if (wheelEvent.deltaMode === WheelEvent.DOM_DELTA_LINE) {\n delta *= 40;\n }\n }\n\n if (delta === 0) {\n return false;\n } else {\n this.lastDelta_ = delta;\n }\n\n const now = Date.now();\n\n if (this.startTime_ === undefined) {\n this.startTime_ = now;\n }\n\n if (!this.mode_ || now - this.startTime_ > this.trackpadEventGap_) {\n this.mode_ = Math.abs(delta) < 4 ? Mode.TRACKPAD : Mode.WHEEL;\n }\n\n const view = map.getView();\n if (\n this.mode_ === Mode.TRACKPAD &&\n !(view.getConstrainResolution() || this.constrainResolution_)\n ) {\n if (this.trackpadTimeoutId_) {\n clearTimeout(this.trackpadTimeoutId_);\n } else {\n if (view.getAnimating()) {\n view.cancelAnimations();\n }\n view.beginInteraction();\n }\n this.trackpadTimeoutId_ = setTimeout(\n this.endInteraction_.bind(this),\n this.timeout_\n );\n view.adjustZoom(-delta / this.deltaPerZoom_, this.lastAnchor_);\n this.startTime_ = now;\n return false;\n }\n\n this.totalDelta_ += delta;\n\n const timeLeft = Math.max(this.timeout_ - (now - this.startTime_), 0);\n\n clearTimeout(this.timeoutId_);\n this.timeoutId_ = setTimeout(\n this.handleWheelZoom_.bind(this, map),\n timeLeft\n );\n\n return false;\n }\n\n /**\n * @private\n * @param {import(\"../PluggableMap.js\").default} map Map.\n */\n handleWheelZoom_(map) {\n const view = map.getView();\n if (view.getAnimating()) {\n view.cancelAnimations();\n }\n let delta =\n -clamp(\n this.totalDelta_,\n -this.maxDelta_ * this.deltaPerZoom_,\n this.maxDelta_ * this.deltaPerZoom_\n ) / this.deltaPerZoom_;\n if (view.getConstrainResolution() || this.constrainResolution_) {\n // view has a zoom constraint, zoom by 1\n delta = delta ? (delta > 0 ? 1 : -1) : 0;\n }\n zoomByDelta(view, delta, this.lastAnchor_, this.duration_);\n\n this.mode_ = undefined;\n this.totalDelta_ = 0;\n this.lastAnchor_ = null;\n this.startTime_ = undefined;\n this.timeoutId_ = undefined;\n }\n\n /**\n * Enable or disable using the mouse's location as an anchor when zooming\n * @param {boolean} useAnchor true to zoom to the mouse's location, false\n * to zoom to the center of the map\n * @api\n */\n setMouseAnchor(useAnchor) {\n this.useAnchor_ = useAnchor;\n if (!useAnchor) {\n this.lastAnchor_ = null;\n }\n }\n}\n\nexport default MouseWheelZoom;\n","/**\n * @module ol/interaction/PinchRotate\n */\nimport PointerInteraction, {\n centroid as centroidFromPointers,\n} from './Pointer.js';\nimport {FALSE} from '../functions.js';\nimport {disable} from '../rotationconstraint.js';\n\n/**\n * @typedef {Object} Options\n * @property {number} [duration=250] The duration of the animation in\n * milliseconds.\n * @property {number} [threshold=0.3] Minimal angle in radians to start a rotation.\n */\n\n/**\n * @classdesc\n * Allows the user to rotate the map by twisting with two fingers\n * on a touch screen.\n * @api\n */\nclass PinchRotate extends PointerInteraction {\n /**\n * @param {Options=} opt_options Options.\n */\n constructor(opt_options) {\n const options = opt_options ? opt_options : {};\n\n const pointerOptions = /** @type {import(\"./Pointer.js\").Options} */ (options);\n\n if (!pointerOptions.stopDown) {\n pointerOptions.stopDown = FALSE;\n }\n\n super(pointerOptions);\n\n /**\n * @private\n * @type {import(\"../coordinate.js\").Coordinate}\n */\n this.anchor_ = null;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.lastAngle_ = undefined;\n\n /**\n * @private\n * @type {boolean}\n */\n this.rotating_ = false;\n\n /**\n * @private\n * @type {number}\n */\n this.rotationDelta_ = 0.0;\n\n /**\n * @private\n * @type {number}\n */\n this.threshold_ = options.threshold !== undefined ? options.threshold : 0.3;\n\n /**\n * @private\n * @type {number}\n */\n this.duration_ = options.duration !== undefined ? options.duration : 250;\n }\n\n /**\n * Handle pointer drag events.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Event.\n */\n handleDragEvent(mapBrowserEvent) {\n let rotationDelta = 0.0;\n\n const touch0 = this.targetPointers[0];\n const touch1 = this.targetPointers[1];\n\n // angle between touches\n const angle = Math.atan2(\n touch1.clientY - touch0.clientY,\n touch1.clientX - touch0.clientX\n );\n\n if (this.lastAngle_ !== undefined) {\n const delta = angle - this.lastAngle_;\n this.rotationDelta_ += delta;\n if (!this.rotating_ && Math.abs(this.rotationDelta_) > this.threshold_) {\n this.rotating_ = true;\n }\n rotationDelta = delta;\n }\n this.lastAngle_ = angle;\n\n const map = mapBrowserEvent.map;\n const view = map.getView();\n if (view.getConstraints().rotation === disable) {\n return;\n }\n\n // rotate anchor point.\n // FIXME: should be the intersection point between the lines:\n // touch0,touch1 and previousTouch0,previousTouch1\n const viewportPosition = map.getViewport().getBoundingClientRect();\n const centroid = centroidFromPointers(this.targetPointers);\n centroid[0] -= viewportPosition.left;\n centroid[1] -= viewportPosition.top;\n this.anchor_ = map.getCoordinateFromPixelInternal(centroid);\n\n // rotate\n if (this.rotating_) {\n map.render();\n view.adjustRotationInternal(rotationDelta, this.anchor_);\n }\n }\n\n /**\n * Handle pointer up events.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Event.\n * @return {boolean} If the event was consumed.\n */\n handleUpEvent(mapBrowserEvent) {\n if (this.targetPointers.length < 2) {\n const map = mapBrowserEvent.map;\n const view = map.getView();\n view.endInteraction(this.duration_);\n return false;\n } else {\n return true;\n }\n }\n\n /**\n * Handle pointer down events.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Event.\n * @return {boolean} If the event was consumed.\n */\n handleDownEvent(mapBrowserEvent) {\n if (this.targetPointers.length >= 2) {\n const map = mapBrowserEvent.map;\n this.anchor_ = null;\n this.lastAngle_ = undefined;\n this.rotating_ = false;\n this.rotationDelta_ = 0.0;\n if (!this.handlingDownUpSequence) {\n map.getView().beginInteraction();\n }\n return true;\n } else {\n return false;\n }\n }\n}\n\nexport default PinchRotate;\n","/**\n * @module ol/interaction/PinchZoom\n */\nimport PointerInteraction, {\n centroid as centroidFromPointers,\n} from './Pointer.js';\nimport {FALSE} from '../functions.js';\n\n/**\n * @typedef {Object} Options\n * @property {number} [duration=400] Animation duration in milliseconds.\n */\n\n/**\n * @classdesc\n * Allows the user to zoom the map by pinching with two fingers\n * on a touch screen.\n * @api\n */\nclass PinchZoom extends PointerInteraction {\n /**\n * @param {Options=} opt_options Options.\n */\n constructor(opt_options) {\n const options = opt_options ? opt_options : {};\n\n const pointerOptions = /** @type {import(\"./Pointer.js\").Options} */ (options);\n\n if (!pointerOptions.stopDown) {\n pointerOptions.stopDown = FALSE;\n }\n\n super(pointerOptions);\n\n /**\n * @private\n * @type {import(\"../coordinate.js\").Coordinate}\n */\n this.anchor_ = null;\n\n /**\n * @private\n * @type {number}\n */\n this.duration_ = options.duration !== undefined ? options.duration : 400;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.lastDistance_ = undefined;\n\n /**\n * @private\n * @type {number}\n */\n this.lastScaleDelta_ = 1;\n }\n\n /**\n * Handle pointer drag events.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Event.\n */\n handleDragEvent(mapBrowserEvent) {\n let scaleDelta = 1.0;\n\n const touch0 = this.targetPointers[0];\n const touch1 = this.targetPointers[1];\n const dx = touch0.clientX - touch1.clientX;\n const dy = touch0.clientY - touch1.clientY;\n\n // distance between touches\n const distance = Math.sqrt(dx * dx + dy * dy);\n\n if (this.lastDistance_ !== undefined) {\n scaleDelta = this.lastDistance_ / distance;\n }\n this.lastDistance_ = distance;\n\n const map = mapBrowserEvent.map;\n const view = map.getView();\n\n if (scaleDelta != 1.0) {\n this.lastScaleDelta_ = scaleDelta;\n }\n\n // scale anchor point.\n const viewportPosition = map.getViewport().getBoundingClientRect();\n const centroid = centroidFromPointers(this.targetPointers);\n centroid[0] -= viewportPosition.left;\n centroid[1] -= viewportPosition.top;\n this.anchor_ = map.getCoordinateFromPixelInternal(centroid);\n\n // scale, bypass the resolution constraint\n map.render();\n view.adjustResolutionInternal(scaleDelta, this.anchor_);\n }\n\n /**\n * Handle pointer up events.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Event.\n * @return {boolean} If the event was consumed.\n */\n handleUpEvent(mapBrowserEvent) {\n if (this.targetPointers.length < 2) {\n const map = mapBrowserEvent.map;\n const view = map.getView();\n const direction = this.lastScaleDelta_ > 1 ? 1 : -1;\n view.endInteraction(this.duration_, direction);\n return false;\n } else {\n return true;\n }\n }\n\n /**\n * Handle pointer down events.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Event.\n * @return {boolean} If the event was consumed.\n */\n handleDownEvent(mapBrowserEvent) {\n if (this.targetPointers.length >= 2) {\n const map = mapBrowserEvent.map;\n this.anchor_ = null;\n this.lastDistance_ = undefined;\n this.lastScaleDelta_ = 1;\n if (!this.handlingDownUpSequence) {\n map.getView().beginInteraction();\n }\n return true;\n } else {\n return false;\n }\n }\n}\n\nexport default PinchZoom;\n","/**\n * @module ol/interaction/DragAndDrop\n */\n// FIXME should handle all geo-referenced data, not just vector data\n\nimport Event from '../events/Event.js';\nimport EventType from '../events/EventType.js';\nimport Interaction from './Interaction.js';\nimport {TRUE} from '../functions.js';\nimport {get as getProjection} from '../proj.js';\nimport {listen, unlistenByKey} from '../events.js';\n\n/**\n * @typedef {Object} Options\n * @property {Array<typeof import(\"../format/Feature.js\").default>} [formatConstructors] Format constructors.\n * @property {import(\"../source/Vector.js\").default} [source] Optional vector source where features will be added. If a source is provided\n * all existing features will be removed and new features will be added when\n * they are dropped on the target. If you want to add features to a vector\n * source without removing the existing features (append only), instead of\n * providing the source option listen for the \"addfeatures\" event.\n * @property {import(\"../proj.js\").ProjectionLike} [projection] Target projection. By default, the map's view's projection is used.\n * @property {HTMLElement} [target] The element that is used as the drop target, default is the viewport element.\n */\n\n/**\n * @enum {string}\n */\nconst DragAndDropEventType = {\n /**\n * Triggered when features are added\n * @event DragAndDropEvent#addfeatures\n * @api\n */\n ADD_FEATURES: 'addfeatures',\n};\n\n/**\n * @classdesc\n * Events emitted by {@link module:ol/interaction/DragAndDrop~DragAndDrop} instances are instances\n * of this type.\n */\nclass DragAndDropEvent extends Event {\n /**\n * @param {DragAndDropEventType} type Type.\n * @param {File} file File.\n * @param {Array<import(\"../Feature.js\").default>=} opt_features Features.\n * @param {import(\"../proj/Projection.js\").default=} opt_projection Projection.\n */\n constructor(type, file, opt_features, opt_projection) {\n super(type);\n\n /**\n * The features parsed from dropped data.\n * @type {Array<import(\"../Feature.js\").FeatureLike>|undefined}\n * @api\n */\n this.features = opt_features;\n\n /**\n * The dropped file.\n * @type {File}\n * @api\n */\n this.file = file;\n\n /**\n * The feature projection.\n * @type {import(\"../proj/Projection.js\").default|undefined}\n * @api\n */\n this.projection = opt_projection;\n }\n}\n\n/**\n * @classdesc\n * Handles input of vector data by drag and drop.\n * @api\n *\n * @fires DragAndDropEvent\n */\nclass DragAndDrop extends Interaction {\n /**\n * @param {Options=} opt_options Options.\n */\n constructor(opt_options) {\n const options = opt_options ? opt_options : {};\n\n super({\n handleEvent: TRUE,\n });\n\n /**\n * @private\n * @type {Array<typeof import(\"../format/Feature.js\").default>}\n */\n this.formatConstructors_ = options.formatConstructors\n ? options.formatConstructors\n : [];\n\n /**\n * @private\n * @type {import(\"../proj/Projection.js\").default}\n */\n this.projection_ = options.projection\n ? getProjection(options.projection)\n : null;\n\n /**\n * @private\n * @type {?Array<import(\"../events.js\").EventsKey>}\n */\n this.dropListenKeys_ = null;\n\n /**\n * @private\n * @type {import(\"../source/Vector.js\").default}\n */\n this.source_ = options.source || null;\n\n /**\n * @private\n * @type {HTMLElement}\n */\n this.target = options.target ? options.target : null;\n }\n\n /**\n * @param {File} file File.\n * @param {Event} event Load event.\n * @private\n */\n handleResult_(file, event) {\n const result = event.target.result;\n const map = this.getMap();\n let projection = this.projection_;\n if (!projection) {\n const view = map.getView();\n projection = view.getProjection();\n }\n\n const formatConstructors = this.formatConstructors_;\n for (let i = 0, ii = formatConstructors.length; i < ii; ++i) {\n const format = new formatConstructors[i]();\n const features = this.tryReadFeatures_(format, result, {\n featureProjection: projection,\n });\n if (features && features.length > 0) {\n if (this.source_) {\n this.source_.clear();\n this.source_.addFeatures(features);\n }\n this.dispatchEvent(\n new DragAndDropEvent(\n DragAndDropEventType.ADD_FEATURES,\n file,\n features,\n projection\n )\n );\n break;\n }\n }\n }\n\n /**\n * @private\n */\n registerListeners_() {\n const map = this.getMap();\n if (map) {\n const dropArea = this.target ? this.target : map.getViewport();\n this.dropListenKeys_ = [\n listen(dropArea, EventType.DROP, this.handleDrop, this),\n listen(dropArea, EventType.DRAGENTER, this.handleStop, this),\n listen(dropArea, EventType.DRAGOVER, this.handleStop, this),\n listen(dropArea, EventType.DROP, this.handleStop, this),\n ];\n }\n }\n\n /**\n * Activate or deactivate the interaction.\n * @param {boolean} active Active.\n * @observable\n * @api\n */\n setActive(active) {\n if (!this.getActive() && active) {\n this.registerListeners_();\n }\n if (this.getActive() && !active) {\n this.unregisterListeners_();\n }\n super.setActive(active);\n }\n\n /**\n * Remove the interaction from its current map and attach it to the new map.\n * Subclasses may set up event handlers to get notified about changes to\n * the map here.\n * @param {import(\"../PluggableMap.js\").default} map Map.\n */\n setMap(map) {\n this.unregisterListeners_();\n super.setMap(map);\n if (this.getActive()) {\n this.registerListeners_();\n }\n }\n\n /**\n * @param {import(\"../format/Feature.js\").default} format Format.\n * @param {string} text Text.\n * @param {import(\"../format/Feature.js\").ReadOptions} options Read options.\n * @private\n * @return {Array<import(\"../Feature.js\").default>} Features.\n */\n tryReadFeatures_(format, text, options) {\n try {\n return (\n /** @type {Array<import(\"../Feature.js\").default>} */\n (format.readFeatures(text, options))\n );\n } catch (e) {\n return null;\n }\n }\n\n /**\n * @private\n */\n unregisterListeners_() {\n if (this.dropListenKeys_) {\n this.dropListenKeys_.forEach(unlistenByKey);\n this.dropListenKeys_ = null;\n }\n }\n\n /**\n * @param {DragEvent} event Event.\n */\n handleDrop(event) {\n const files = event.dataTransfer.files;\n for (let i = 0, ii = files.length; i < ii; ++i) {\n const file = files.item(i);\n const reader = new FileReader();\n reader.addEventListener(\n EventType.LOAD,\n this.handleResult_.bind(this, file)\n );\n reader.readAsText(file);\n }\n }\n\n /**\n * @param {DragEvent} event Event.\n */\n handleStop(event) {\n event.stopPropagation();\n event.preventDefault();\n event.dataTransfer.dropEffect = 'copy';\n }\n}\n\nexport default DragAndDrop;\n","/**\n * @module ol/interaction/DragRotateAndZoom\n */\nimport PointerInteraction from './Pointer.js';\nimport {mouseOnly, shiftKeyOnly} from '../events/condition.js';\n\n/**\n * @typedef {Object} Options\n * @property {import(\"../events/condition.js\").Condition} [condition] A function that\n * takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a\n * boolean to indicate whether that event should be handled.\n * Default is {@link module:ol/events/condition~shiftKeyOnly}.\n * @property {number} [duration=400] Animation duration in milliseconds.\n */\n\n/**\n * @classdesc\n * Allows the user to zoom and rotate the map by clicking and dragging\n * on the map. By default, this interaction is limited to when the shift\n * key is held down.\n *\n * This interaction is only supported for mouse devices.\n *\n * And this interaction is not included in the default interactions.\n * @api\n */\nclass DragRotateAndZoom extends PointerInteraction {\n /**\n * @param {Options=} opt_options Options.\n */\n constructor(opt_options) {\n const options = opt_options ? opt_options : {};\n\n super(/** @type {import(\"./Pointer.js\").Options} */ (options));\n\n /**\n * @private\n * @type {import(\"../events/condition.js\").Condition}\n */\n this.condition_ = options.condition ? options.condition : shiftKeyOnly;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.lastAngle_ = undefined;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.lastMagnitude_ = undefined;\n\n /**\n * @private\n * @type {number}\n */\n this.lastScaleDelta_ = 0;\n\n /**\n * @private\n * @type {number}\n */\n this.duration_ = options.duration !== undefined ? options.duration : 400;\n }\n\n /**\n * Handle pointer drag events.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Event.\n */\n handleDragEvent(mapBrowserEvent) {\n if (!mouseOnly(mapBrowserEvent)) {\n return;\n }\n\n const map = mapBrowserEvent.map;\n const size = map.getSize();\n const offset = mapBrowserEvent.pixel;\n const deltaX = offset[0] - size[0] / 2;\n const deltaY = size[1] / 2 - offset[1];\n const theta = Math.atan2(deltaY, deltaX);\n const magnitude = Math.sqrt(deltaX * deltaX + deltaY * deltaY);\n const view = map.getView();\n if (this.lastAngle_ !== undefined) {\n const angleDelta = this.lastAngle_ - theta;\n view.adjustRotationInternal(angleDelta);\n }\n this.lastAngle_ = theta;\n if (this.lastMagnitude_ !== undefined) {\n view.adjustResolutionInternal(this.lastMagnitude_ / magnitude);\n }\n if (this.lastMagnitude_ !== undefined) {\n this.lastScaleDelta_ = this.lastMagnitude_ / magnitude;\n }\n this.lastMagnitude_ = magnitude;\n }\n\n /**\n * Handle pointer up events.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Event.\n * @return {boolean} If the event was consumed.\n */\n handleUpEvent(mapBrowserEvent) {\n if (!mouseOnly(mapBrowserEvent)) {\n return true;\n }\n\n const map = mapBrowserEvent.map;\n const view = map.getView();\n const direction = this.lastScaleDelta_ > 1 ? 1 : -1;\n view.endInteraction(this.duration_, direction);\n this.lastScaleDelta_ = 0;\n return false;\n }\n\n /**\n * Handle pointer down events.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Event.\n * @return {boolean} If the event was consumed.\n */\n handleDownEvent(mapBrowserEvent) {\n if (!mouseOnly(mapBrowserEvent)) {\n return false;\n }\n\n if (this.condition_(mapBrowserEvent)) {\n mapBrowserEvent.map.getView().beginInteraction();\n this.lastAngle_ = undefined;\n this.lastMagnitude_ = undefined;\n return true;\n } else {\n return false;\n }\n }\n}\n\nexport default DragRotateAndZoom;\n","/**\n * @module ol/geom/Circle\n */\nimport GeometryType from './GeometryType.js';\nimport SimpleGeometry from './SimpleGeometry.js';\nimport {createOrUpdate, forEachCorner, intersects} from '../extent.js';\nimport {deflateCoordinate} from './flat/deflate.js';\nimport {rotate, translate} from './flat/transform.js';\n\n/**\n * @classdesc\n * Circle geometry.\n *\n * @api\n */\nclass Circle extends SimpleGeometry {\n /**\n * @param {!import(\"../coordinate.js\").Coordinate} center Center.\n * For internal use, flat coordinates in combination with `opt_layout` and no\n * `opt_radius` are also accepted.\n * @param {number=} opt_radius Radius.\n * @param {import(\"./GeometryLayout.js\").default=} opt_layout Layout.\n */\n constructor(center, opt_radius, opt_layout) {\n super();\n if (opt_layout !== undefined && opt_radius === undefined) {\n this.setFlatCoordinates(opt_layout, center);\n } else {\n const radius = opt_radius ? opt_radius : 0;\n this.setCenterAndRadius(center, radius, opt_layout);\n }\n }\n\n /**\n * Make a complete copy of the geometry.\n * @return {!Circle} Clone.\n * @api\n */\n clone() {\n return new Circle(this.flatCoordinates.slice(), undefined, this.layout);\n }\n\n /**\n * @param {number} x X.\n * @param {number} y Y.\n * @param {import(\"../coordinate.js\").Coordinate} closestPoint Closest point.\n * @param {number} minSquaredDistance Minimum squared distance.\n * @return {number} Minimum squared distance.\n */\n closestPointXY(x, y, closestPoint, minSquaredDistance) {\n const flatCoordinates = this.flatCoordinates;\n const dx = x - flatCoordinates[0];\n const dy = y - flatCoordinates[1];\n const squaredDistance = dx * dx + dy * dy;\n if (squaredDistance < minSquaredDistance) {\n if (squaredDistance === 0) {\n for (let i = 0; i < this.stride; ++i) {\n closestPoint[i] = flatCoordinates[i];\n }\n } else {\n const delta = this.getRadius() / Math.sqrt(squaredDistance);\n closestPoint[0] = flatCoordinates[0] + delta * dx;\n closestPoint[1] = flatCoordinates[1] + delta * dy;\n for (let i = 2; i < this.stride; ++i) {\n closestPoint[i] = flatCoordinates[i];\n }\n }\n closestPoint.length = this.stride;\n return squaredDistance;\n } else {\n return minSquaredDistance;\n }\n }\n\n /**\n * @param {number} x X.\n * @param {number} y Y.\n * @return {boolean} Contains (x, y).\n */\n containsXY(x, y) {\n const flatCoordinates = this.flatCoordinates;\n const dx = x - flatCoordinates[0];\n const dy = y - flatCoordinates[1];\n return dx * dx + dy * dy <= this.getRadiusSquared_();\n }\n\n /**\n * Return the center of the circle as {@link module:ol/coordinate~Coordinate coordinate}.\n * @return {import(\"../coordinate.js\").Coordinate} Center.\n * @api\n */\n getCenter() {\n return this.flatCoordinates.slice(0, this.stride);\n }\n\n /**\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @protected\n * @return {import(\"../extent.js\").Extent} extent Extent.\n */\n computeExtent(extent) {\n const flatCoordinates = this.flatCoordinates;\n const radius = flatCoordinates[this.stride] - flatCoordinates[0];\n return createOrUpdate(\n flatCoordinates[0] - radius,\n flatCoordinates[1] - radius,\n flatCoordinates[0] + radius,\n flatCoordinates[1] + radius,\n extent\n );\n }\n\n /**\n * Return the radius of the circle.\n * @return {number} Radius.\n * @api\n */\n getRadius() {\n return Math.sqrt(this.getRadiusSquared_());\n }\n\n /**\n * @private\n * @return {number} Radius squared.\n */\n getRadiusSquared_() {\n const dx = this.flatCoordinates[this.stride] - this.flatCoordinates[0];\n const dy = this.flatCoordinates[this.stride + 1] - this.flatCoordinates[1];\n return dx * dx + dy * dy;\n }\n\n /**\n * Get the type of this geometry.\n * @return {import(\"./GeometryType.js\").default} Geometry type.\n * @api\n */\n getType() {\n return GeometryType.CIRCLE;\n }\n\n /**\n * Test if the geometry and the passed extent intersect.\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @return {boolean} `true` if the geometry and the extent intersect.\n * @api\n */\n intersectsExtent(extent) {\n const circleExtent = this.getExtent();\n if (intersects(extent, circleExtent)) {\n const center = this.getCenter();\n\n if (extent[0] <= center[0] && extent[2] >= center[0]) {\n return true;\n }\n if (extent[1] <= center[1] && extent[3] >= center[1]) {\n return true;\n }\n\n return forEachCorner(extent, this.intersectsCoordinate.bind(this));\n }\n return false;\n }\n\n /**\n * Set the center of the circle as {@link module:ol/coordinate~Coordinate coordinate}.\n * @param {import(\"../coordinate.js\").Coordinate} center Center.\n * @api\n */\n setCenter(center) {\n const stride = this.stride;\n const radius = this.flatCoordinates[stride] - this.flatCoordinates[0];\n const flatCoordinates = center.slice();\n flatCoordinates[stride] = flatCoordinates[0] + radius;\n for (let i = 1; i < stride; ++i) {\n flatCoordinates[stride + i] = center[i];\n }\n this.setFlatCoordinates(this.layout, flatCoordinates);\n this.changed();\n }\n\n /**\n * Set the center (as {@link module:ol/coordinate~Coordinate coordinate}) and the radius (as\n * number) of the circle.\n * @param {!import(\"../coordinate.js\").Coordinate} center Center.\n * @param {number} radius Radius.\n * @param {import(\"./GeometryLayout.js\").default=} opt_layout Layout.\n * @api\n */\n setCenterAndRadius(center, radius, opt_layout) {\n this.setLayout(opt_layout, center, 0);\n if (!this.flatCoordinates) {\n this.flatCoordinates = [];\n }\n /** @type {Array<number>} */\n const flatCoordinates = this.flatCoordinates;\n let offset = deflateCoordinate(flatCoordinates, 0, center, this.stride);\n flatCoordinates[offset++] = flatCoordinates[0] + radius;\n for (let i = 1, ii = this.stride; i < ii; ++i) {\n flatCoordinates[offset++] = flatCoordinates[i];\n }\n flatCoordinates.length = offset;\n this.changed();\n }\n\n getCoordinates() {\n return null;\n }\n\n setCoordinates(coordinates, opt_layout) {}\n\n /**\n * Set the radius of the circle. The radius is in the units of the projection.\n * @param {number} radius Radius.\n * @api\n */\n setRadius(radius) {\n this.flatCoordinates[this.stride] = this.flatCoordinates[0] + radius;\n this.changed();\n }\n\n /**\n * Rotate the geometry around a given coordinate. This modifies the geometry\n * coordinates in place.\n * @param {number} angle Rotation angle in radians.\n * @param {import(\"../coordinate.js\").Coordinate} anchor The rotation center.\n * @api\n */\n rotate(angle, anchor) {\n const center = this.getCenter();\n const stride = this.getStride();\n this.setCenter(\n rotate(center, 0, center.length, stride, angle, anchor, center)\n );\n this.changed();\n }\n\n /**\n * Translate the geometry. This modifies the geometry coordinates in place. If\n * instead you want a new geometry, first `clone()` this geometry.\n * @param {number} deltaX Delta X.\n * @param {number} deltaY Delta Y.\n * @api\n */\n translate(deltaX, deltaY) {\n const center = this.getCenter();\n const stride = this.getStride();\n this.setCenter(\n translate(center, 0, center.length, stride, deltaX, deltaY, center)\n );\n this.changed();\n }\n}\n\n/**\n * Transform each coordinate of the circle from one coordinate reference system\n * to another. The geometry is modified in place.\n * If you do not want the geometry modified in place, first clone() it and\n * then use this function on the clone.\n *\n * Internally a circle is currently represented by two points: the center of\n * the circle `[cx, cy]`, and the point to the right of the circle\n * `[cx + r, cy]`. This `transform` function just transforms these two points.\n * So the resulting geometry is also a circle, and that circle does not\n * correspond to the shape that would be obtained by transforming every point\n * of the original circle.\n *\n * @param {import(\"../proj.js\").ProjectionLike} source The current projection. Can be a\n * string identifier or a {@link module:ol/proj/Projection~Projection} object.\n * @param {import(\"../proj.js\").ProjectionLike} destination The desired projection. Can be a\n * string identifier or a {@link module:ol/proj/Projection~Projection} object.\n * @return {Circle} This geometry. Note that original geometry is\n * modified in place.\n * @function\n * @api\n */\nCircle.prototype.transform;\nexport default Circle;\n","/**\n * @module ol/geom/MultiLineString\n */\nimport GeometryLayout from './GeometryLayout.js';\nimport GeometryType from './GeometryType.js';\nimport LineString from './LineString.js';\nimport SimpleGeometry from './SimpleGeometry.js';\nimport {arrayMaxSquaredDelta, assignClosestArrayPoint} from './flat/closest.js';\nimport {closestSquaredDistanceXY} from '../extent.js';\nimport {deflateCoordinatesArray} from './flat/deflate.js';\nimport {douglasPeuckerArray} from './flat/simplify.js';\nimport {extend} from '../array.js';\nimport {inflateCoordinatesArray} from './flat/inflate.js';\nimport {\n interpolatePoint,\n lineStringsCoordinateAtM,\n} from './flat/interpolate.js';\nimport {intersectsLineStringArray} from './flat/intersectsextent.js';\n\n/**\n * @classdesc\n * Multi-linestring geometry.\n *\n * @api\n */\nclass MultiLineString extends SimpleGeometry {\n /**\n * @param {Array<Array<import(\"../coordinate.js\").Coordinate>|LineString>|Array<number>} coordinates\n * Coordinates or LineString geometries. (For internal use, flat coordinates in\n * combination with `opt_layout` and `opt_ends` are also accepted.)\n * @param {import(\"./GeometryLayout.js\").default=} opt_layout Layout.\n * @param {Array<number>=} opt_ends Flat coordinate ends for internal use.\n */\n constructor(coordinates, opt_layout, opt_ends) {\n super();\n\n /**\n * @type {Array<number>}\n * @private\n */\n this.ends_ = [];\n\n /**\n * @private\n * @type {number}\n */\n this.maxDelta_ = -1;\n\n /**\n * @private\n * @type {number}\n */\n this.maxDeltaRevision_ = -1;\n\n if (Array.isArray(coordinates[0])) {\n this.setCoordinates(\n /** @type {Array<Array<import(\"../coordinate.js\").Coordinate>>} */ (coordinates),\n opt_layout\n );\n } else if (opt_layout !== undefined && opt_ends) {\n this.setFlatCoordinates(\n opt_layout,\n /** @type {Array<number>} */ (coordinates)\n );\n this.ends_ = opt_ends;\n } else {\n let layout = this.getLayout();\n const lineStrings = /** @type {Array<LineString>} */ (coordinates);\n const flatCoordinates = [];\n const ends = [];\n for (let i = 0, ii = lineStrings.length; i < ii; ++i) {\n const lineString = lineStrings[i];\n if (i === 0) {\n layout = lineString.getLayout();\n }\n extend(flatCoordinates, lineString.getFlatCoordinates());\n ends.push(flatCoordinates.length);\n }\n this.setFlatCoordinates(layout, flatCoordinates);\n this.ends_ = ends;\n }\n }\n\n /**\n * Append the passed linestring to the multilinestring.\n * @param {LineString} lineString LineString.\n * @api\n */\n appendLineString(lineString) {\n if (!this.flatCoordinates) {\n this.flatCoordinates = lineString.getFlatCoordinates().slice();\n } else {\n extend(this.flatCoordinates, lineString.getFlatCoordinates().slice());\n }\n this.ends_.push(this.flatCoordinates.length);\n this.changed();\n }\n\n /**\n * Make a complete copy of the geometry.\n * @return {!MultiLineString} Clone.\n * @api\n */\n clone() {\n return new MultiLineString(\n this.flatCoordinates.slice(),\n this.layout,\n this.ends_.slice()\n );\n }\n\n /**\n * @param {number} x X.\n * @param {number} y Y.\n * @param {import(\"../coordinate.js\").Coordinate} closestPoint Closest point.\n * @param {number} minSquaredDistance Minimum squared distance.\n * @return {number} Minimum squared distance.\n */\n closestPointXY(x, y, closestPoint, minSquaredDistance) {\n if (minSquaredDistance < closestSquaredDistanceXY(this.getExtent(), x, y)) {\n return minSquaredDistance;\n }\n if (this.maxDeltaRevision_ != this.getRevision()) {\n this.maxDelta_ = Math.sqrt(\n arrayMaxSquaredDelta(\n this.flatCoordinates,\n 0,\n this.ends_,\n this.stride,\n 0\n )\n );\n this.maxDeltaRevision_ = this.getRevision();\n }\n return assignClosestArrayPoint(\n this.flatCoordinates,\n 0,\n this.ends_,\n this.stride,\n this.maxDelta_,\n false,\n x,\n y,\n closestPoint,\n minSquaredDistance\n );\n }\n\n /**\n * Returns the coordinate at `m` using linear interpolation, or `null` if no\n * such coordinate exists.\n *\n * `opt_extrapolate` controls extrapolation beyond the range of Ms in the\n * MultiLineString. If `opt_extrapolate` is `true` then Ms less than the first\n * M will return the first coordinate and Ms greater than the last M will\n * return the last coordinate.\n *\n * `opt_interpolate` controls interpolation between consecutive LineStrings\n * within the MultiLineString. If `opt_interpolate` is `true` the coordinates\n * will be linearly interpolated between the last coordinate of one LineString\n * and the first coordinate of the next LineString. If `opt_interpolate` is\n * `false` then the function will return `null` for Ms falling between\n * LineStrings.\n *\n * @param {number} m M.\n * @param {boolean=} opt_extrapolate Extrapolate. Default is `false`.\n * @param {boolean=} opt_interpolate Interpolate. Default is `false`.\n * @return {import(\"../coordinate.js\").Coordinate} Coordinate.\n * @api\n */\n getCoordinateAtM(m, opt_extrapolate, opt_interpolate) {\n if (\n (this.layout != GeometryLayout.XYM &&\n this.layout != GeometryLayout.XYZM) ||\n this.flatCoordinates.length === 0\n ) {\n return null;\n }\n const extrapolate = opt_extrapolate !== undefined ? opt_extrapolate : false;\n const interpolate = opt_interpolate !== undefined ? opt_interpolate : false;\n return lineStringsCoordinateAtM(\n this.flatCoordinates,\n 0,\n this.ends_,\n this.stride,\n m,\n extrapolate,\n interpolate\n );\n }\n\n /**\n * Return the coordinates of the multilinestring.\n * @return {Array<Array<import(\"../coordinate.js\").Coordinate>>} Coordinates.\n * @api\n */\n getCoordinates() {\n return inflateCoordinatesArray(\n this.flatCoordinates,\n 0,\n this.ends_,\n this.stride\n );\n }\n\n /**\n * @return {Array<number>} Ends.\n */\n getEnds() {\n return this.ends_;\n }\n\n /**\n * Return the linestring at the specified index.\n * @param {number} index Index.\n * @return {LineString} LineString.\n * @api\n */\n getLineString(index) {\n if (index < 0 || this.ends_.length <= index) {\n return null;\n }\n return new LineString(\n this.flatCoordinates.slice(\n index === 0 ? 0 : this.ends_[index - 1],\n this.ends_[index]\n ),\n this.layout\n );\n }\n\n /**\n * Return the linestrings of this multilinestring.\n * @return {Array<LineString>} LineStrings.\n * @api\n */\n getLineStrings() {\n const flatCoordinates = this.flatCoordinates;\n const ends = this.ends_;\n const layout = this.layout;\n /** @type {Array<LineString>} */\n const lineStrings = [];\n let offset = 0;\n for (let i = 0, ii = ends.length; i < ii; ++i) {\n const end = ends[i];\n const lineString = new LineString(\n flatCoordinates.slice(offset, end),\n layout\n );\n lineStrings.push(lineString);\n offset = end;\n }\n return lineStrings;\n }\n\n /**\n * @return {Array<number>} Flat midpoints.\n */\n getFlatMidpoints() {\n const midpoints = [];\n const flatCoordinates = this.flatCoordinates;\n let offset = 0;\n const ends = this.ends_;\n const stride = this.stride;\n for (let i = 0, ii = ends.length; i < ii; ++i) {\n const end = ends[i];\n const midpoint = interpolatePoint(\n flatCoordinates,\n offset,\n end,\n stride,\n 0.5\n );\n extend(midpoints, midpoint);\n offset = end;\n }\n return midpoints;\n }\n\n /**\n * @param {number} squaredTolerance Squared tolerance.\n * @return {MultiLineString} Simplified MultiLineString.\n * @protected\n */\n getSimplifiedGeometryInternal(squaredTolerance) {\n const simplifiedFlatCoordinates = [];\n const simplifiedEnds = [];\n simplifiedFlatCoordinates.length = douglasPeuckerArray(\n this.flatCoordinates,\n 0,\n this.ends_,\n this.stride,\n squaredTolerance,\n simplifiedFlatCoordinates,\n 0,\n simplifiedEnds\n );\n return new MultiLineString(\n simplifiedFlatCoordinates,\n GeometryLayout.XY,\n simplifiedEnds\n );\n }\n\n /**\n * Get the type of this geometry.\n * @return {import(\"./GeometryType.js\").default} Geometry type.\n * @api\n */\n getType() {\n return GeometryType.MULTI_LINE_STRING;\n }\n\n /**\n * Test if the geometry and the passed extent intersect.\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @return {boolean} `true` if the geometry and the extent intersect.\n * @api\n */\n intersectsExtent(extent) {\n return intersectsLineStringArray(\n this.flatCoordinates,\n 0,\n this.ends_,\n this.stride,\n extent\n );\n }\n\n /**\n * Set the coordinates of the multilinestring.\n * @param {!Array<Array<import(\"../coordinate.js\").Coordinate>>} coordinates Coordinates.\n * @param {GeometryLayout=} opt_layout Layout.\n * @api\n */\n setCoordinates(coordinates, opt_layout) {\n this.setLayout(opt_layout, coordinates, 2);\n if (!this.flatCoordinates) {\n this.flatCoordinates = [];\n }\n const ends = deflateCoordinatesArray(\n this.flatCoordinates,\n 0,\n coordinates,\n this.stride,\n this.ends_\n );\n this.flatCoordinates.length = ends.length === 0 ? 0 : ends[ends.length - 1];\n this.changed();\n }\n}\n\nexport default MultiLineString;\n","/**\n * @module ol/geom/MultiPoint\n */\nimport GeometryType from './GeometryType.js';\nimport Point from './Point.js';\nimport SimpleGeometry from './SimpleGeometry.js';\nimport {closestSquaredDistanceXY, containsXY} from '../extent.js';\nimport {deflateCoordinates} from './flat/deflate.js';\nimport {extend} from '../array.js';\nimport {inflateCoordinates} from './flat/inflate.js';\nimport {squaredDistance as squaredDx} from '../math.js';\n\n/**\n * @classdesc\n * Multi-point geometry.\n *\n * @api\n */\nclass MultiPoint extends SimpleGeometry {\n /**\n * @param {Array<import(\"../coordinate.js\").Coordinate>|Array<number>} coordinates Coordinates.\n * For internal use, flat coordinates in combination with `opt_layout` are also accepted.\n * @param {import(\"./GeometryLayout.js\").default=} opt_layout Layout.\n */\n constructor(coordinates, opt_layout) {\n super();\n if (opt_layout && !Array.isArray(coordinates[0])) {\n this.setFlatCoordinates(\n opt_layout,\n /** @type {Array<number>} */ (coordinates)\n );\n } else {\n this.setCoordinates(\n /** @type {Array<import(\"../coordinate.js\").Coordinate>} */ (coordinates),\n opt_layout\n );\n }\n }\n\n /**\n * Append the passed point to this multipoint.\n * @param {Point} point Point.\n * @api\n */\n appendPoint(point) {\n if (!this.flatCoordinates) {\n this.flatCoordinates = point.getFlatCoordinates().slice();\n } else {\n extend(this.flatCoordinates, point.getFlatCoordinates());\n }\n this.changed();\n }\n\n /**\n * Make a complete copy of the geometry.\n * @return {!MultiPoint} Clone.\n * @api\n */\n clone() {\n const multiPoint = new MultiPoint(\n this.flatCoordinates.slice(),\n this.layout\n );\n return multiPoint;\n }\n\n /**\n * @param {number} x X.\n * @param {number} y Y.\n * @param {import(\"../coordinate.js\").Coordinate} closestPoint Closest point.\n * @param {number} minSquaredDistance Minimum squared distance.\n * @return {number} Minimum squared distance.\n */\n closestPointXY(x, y, closestPoint, minSquaredDistance) {\n if (minSquaredDistance < closestSquaredDistanceXY(this.getExtent(), x, y)) {\n return minSquaredDistance;\n }\n const flatCoordinates = this.flatCoordinates;\n const stride = this.stride;\n for (let i = 0, ii = flatCoordinates.length; i < ii; i += stride) {\n const squaredDistance = squaredDx(\n x,\n y,\n flatCoordinates[i],\n flatCoordinates[i + 1]\n );\n if (squaredDistance < minSquaredDistance) {\n minSquaredDistance = squaredDistance;\n for (let j = 0; j < stride; ++j) {\n closestPoint[j] = flatCoordinates[i + j];\n }\n closestPoint.length = stride;\n }\n }\n return minSquaredDistance;\n }\n\n /**\n * Return the coordinates of the multipoint.\n * @return {Array<import(\"../coordinate.js\").Coordinate>} Coordinates.\n * @api\n */\n getCoordinates() {\n return inflateCoordinates(\n this.flatCoordinates,\n 0,\n this.flatCoordinates.length,\n this.stride\n );\n }\n\n /**\n * Return the point at the specified index.\n * @param {number} index Index.\n * @return {Point} Point.\n * @api\n */\n getPoint(index) {\n const n = !this.flatCoordinates\n ? 0\n : this.flatCoordinates.length / this.stride;\n if (index < 0 || n <= index) {\n return null;\n }\n return new Point(\n this.flatCoordinates.slice(\n index * this.stride,\n (index + 1) * this.stride\n ),\n this.layout\n );\n }\n\n /**\n * Return the points of this multipoint.\n * @return {Array<Point>} Points.\n * @api\n */\n getPoints() {\n const flatCoordinates = this.flatCoordinates;\n const layout = this.layout;\n const stride = this.stride;\n /** @type {Array<Point>} */\n const points = [];\n for (let i = 0, ii = flatCoordinates.length; i < ii; i += stride) {\n const point = new Point(flatCoordinates.slice(i, i + stride), layout);\n points.push(point);\n }\n return points;\n }\n\n /**\n * Get the type of this geometry.\n * @return {import(\"./GeometryType.js\").default} Geometry type.\n * @api\n */\n getType() {\n return GeometryType.MULTI_POINT;\n }\n\n /**\n * Test if the geometry and the passed extent intersect.\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @return {boolean} `true` if the geometry and the extent intersect.\n * @api\n */\n intersectsExtent(extent) {\n const flatCoordinates = this.flatCoordinates;\n const stride = this.stride;\n for (let i = 0, ii = flatCoordinates.length; i < ii; i += stride) {\n const x = flatCoordinates[i];\n const y = flatCoordinates[i + 1];\n if (containsXY(extent, x, y)) {\n return true;\n }\n }\n return false;\n }\n\n /**\n * Set the coordinates of the multipoint.\n * @param {!Array<import(\"../coordinate.js\").Coordinate>} coordinates Coordinates.\n * @param {import(\"./GeometryLayout.js\").default=} opt_layout Layout.\n * @api\n */\n setCoordinates(coordinates, opt_layout) {\n this.setLayout(opt_layout, coordinates, 1);\n if (!this.flatCoordinates) {\n this.flatCoordinates = [];\n }\n this.flatCoordinates.length = deflateCoordinates(\n this.flatCoordinates,\n 0,\n coordinates,\n this.stride\n );\n this.changed();\n }\n}\n\nexport default MultiPoint;\n","/**\n * @module ol/geom/flat/center\n */\nimport {createEmpty, createOrUpdateFromFlatCoordinates} from '../../extent.js';\n\n/**\n * @param {Array<number>} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array<Array<number>>} endss Endss.\n * @param {number} stride Stride.\n * @return {Array<number>} Flat centers.\n */\nexport function linearRingss(flatCoordinates, offset, endss, stride) {\n const flatCenters = [];\n let extent = createEmpty();\n for (let i = 0, ii = endss.length; i < ii; ++i) {\n const ends = endss[i];\n extent = createOrUpdateFromFlatCoordinates(\n flatCoordinates,\n offset,\n ends[0],\n stride\n );\n flatCenters.push((extent[0] + extent[2]) / 2, (extent[1] + extent[3]) / 2);\n offset = ends[ends.length - 1];\n }\n return flatCenters;\n}\n","/**\n * @module ol/geom/MultiPolygon\n */\nimport GeometryLayout from './GeometryLayout.js';\nimport GeometryType from './GeometryType.js';\nimport MultiPoint from './MultiPoint.js';\nimport Polygon from './Polygon.js';\nimport SimpleGeometry from './SimpleGeometry.js';\nimport {\n assignClosestMultiArrayPoint,\n multiArrayMaxSquaredDelta,\n} from './flat/closest.js';\nimport {closestSquaredDistanceXY} from '../extent.js';\nimport {deflateMultiCoordinatesArray} from './flat/deflate.js';\nimport {extend} from '../array.js';\nimport {getInteriorPointsOfMultiArray} from './flat/interiorpoint.js';\nimport {inflateMultiCoordinatesArray} from './flat/inflate.js';\nimport {intersectsLinearRingMultiArray} from './flat/intersectsextent.js';\nimport {\n linearRingssAreOriented,\n orientLinearRingsArray,\n} from './flat/orient.js';\nimport {linearRingss as linearRingssArea} from './flat/area.js';\nimport {linearRingss as linearRingssCenter} from './flat/center.js';\nimport {linearRingssContainsXY} from './flat/contains.js';\nimport {quantizeMultiArray} from './flat/simplify.js';\n\n/**\n * @classdesc\n * Multi-polygon geometry.\n *\n * @api\n */\nclass MultiPolygon extends SimpleGeometry {\n /**\n * @param {Array<Array<Array<import(\"../coordinate.js\").Coordinate>>|Polygon>|Array<number>} coordinates Coordinates.\n * For internal use, flat coordinates in combination with `opt_layout` and `opt_endss` are also accepted.\n * @param {import(\"./GeometryLayout.js\").default=} opt_layout Layout.\n * @param {Array<Array<number>>=} opt_endss Array of ends for internal use with flat coordinates.\n */\n constructor(coordinates, opt_layout, opt_endss) {\n super();\n\n /**\n * @type {Array<Array<number>>}\n * @private\n */\n this.endss_ = [];\n\n /**\n * @private\n * @type {number}\n */\n this.flatInteriorPointsRevision_ = -1;\n\n /**\n * @private\n * @type {Array<number>}\n */\n this.flatInteriorPoints_ = null;\n\n /**\n * @private\n * @type {number}\n */\n this.maxDelta_ = -1;\n\n /**\n * @private\n * @type {number}\n */\n this.maxDeltaRevision_ = -1;\n\n /**\n * @private\n * @type {number}\n */\n this.orientedRevision_ = -1;\n\n /**\n * @private\n * @type {Array<number>}\n */\n this.orientedFlatCoordinates_ = null;\n\n if (!opt_endss && !Array.isArray(coordinates[0])) {\n let layout = this.getLayout();\n const polygons = /** @type {Array<Polygon>} */ (coordinates);\n const flatCoordinates = [];\n const endss = [];\n for (let i = 0, ii = polygons.length; i < ii; ++i) {\n const polygon = polygons[i];\n if (i === 0) {\n layout = polygon.getLayout();\n }\n const offset = flatCoordinates.length;\n const ends = polygon.getEnds();\n for (let j = 0, jj = ends.length; j < jj; ++j) {\n ends[j] += offset;\n }\n extend(flatCoordinates, polygon.getFlatCoordinates());\n endss.push(ends);\n }\n opt_layout = layout;\n coordinates = flatCoordinates;\n opt_endss = endss;\n }\n if (opt_layout !== undefined && opt_endss) {\n this.setFlatCoordinates(\n opt_layout,\n /** @type {Array<number>} */ (coordinates)\n );\n this.endss_ = opt_endss;\n } else {\n this.setCoordinates(\n /** @type {Array<Array<Array<import(\"../coordinate.js\").Coordinate>>>} */ (coordinates),\n opt_layout\n );\n }\n }\n\n /**\n * Append the passed polygon to this multipolygon.\n * @param {Polygon} polygon Polygon.\n * @api\n */\n appendPolygon(polygon) {\n /** @type {Array<number>} */\n let ends;\n if (!this.flatCoordinates) {\n this.flatCoordinates = polygon.getFlatCoordinates().slice();\n ends = polygon.getEnds().slice();\n this.endss_.push();\n } else {\n const offset = this.flatCoordinates.length;\n extend(this.flatCoordinates, polygon.getFlatCoordinates());\n ends = polygon.getEnds().slice();\n for (let i = 0, ii = ends.length; i < ii; ++i) {\n ends[i] += offset;\n }\n }\n this.endss_.push(ends);\n this.changed();\n }\n\n /**\n * Make a complete copy of the geometry.\n * @return {!MultiPolygon} Clone.\n * @api\n */\n clone() {\n const len = this.endss_.length;\n const newEndss = new Array(len);\n for (let i = 0; i < len; ++i) {\n newEndss[i] = this.endss_[i].slice();\n }\n\n return new MultiPolygon(\n this.flatCoordinates.slice(),\n this.layout,\n newEndss\n );\n }\n\n /**\n * @param {number} x X.\n * @param {number} y Y.\n * @param {import(\"../coordinate.js\").Coordinate} closestPoint Closest point.\n * @param {number} minSquaredDistance Minimum squared distance.\n * @return {number} Minimum squared distance.\n */\n closestPointXY(x, y, closestPoint, minSquaredDistance) {\n if (minSquaredDistance < closestSquaredDistanceXY(this.getExtent(), x, y)) {\n return minSquaredDistance;\n }\n if (this.maxDeltaRevision_ != this.getRevision()) {\n this.maxDelta_ = Math.sqrt(\n multiArrayMaxSquaredDelta(\n this.flatCoordinates,\n 0,\n this.endss_,\n this.stride,\n 0\n )\n );\n this.maxDeltaRevision_ = this.getRevision();\n }\n return assignClosestMultiArrayPoint(\n this.getOrientedFlatCoordinates(),\n 0,\n this.endss_,\n this.stride,\n this.maxDelta_,\n true,\n x,\n y,\n closestPoint,\n minSquaredDistance\n );\n }\n\n /**\n * @param {number} x X.\n * @param {number} y Y.\n * @return {boolean} Contains (x, y).\n */\n containsXY(x, y) {\n return linearRingssContainsXY(\n this.getOrientedFlatCoordinates(),\n 0,\n this.endss_,\n this.stride,\n x,\n y\n );\n }\n\n /**\n * Return the area of the multipolygon on projected plane.\n * @return {number} Area (on projected plane).\n * @api\n */\n getArea() {\n return linearRingssArea(\n this.getOrientedFlatCoordinates(),\n 0,\n this.endss_,\n this.stride\n );\n }\n\n /**\n * Get the coordinate array for this geometry. This array has the structure\n * of a GeoJSON coordinate array for multi-polygons.\n *\n * @param {boolean=} opt_right Orient coordinates according to the right-hand\n * rule (counter-clockwise for exterior and clockwise for interior rings).\n * If `false`, coordinates will be oriented according to the left-hand rule\n * (clockwise for exterior and counter-clockwise for interior rings).\n * By default, coordinate orientation will depend on how the geometry was\n * constructed.\n * @return {Array<Array<Array<import(\"../coordinate.js\").Coordinate>>>} Coordinates.\n * @api\n */\n getCoordinates(opt_right) {\n let flatCoordinates;\n if (opt_right !== undefined) {\n flatCoordinates = this.getOrientedFlatCoordinates().slice();\n orientLinearRingsArray(\n flatCoordinates,\n 0,\n this.endss_,\n this.stride,\n opt_right\n );\n } else {\n flatCoordinates = this.flatCoordinates;\n }\n\n return inflateMultiCoordinatesArray(\n flatCoordinates,\n 0,\n this.endss_,\n this.stride\n );\n }\n\n /**\n * @return {Array<Array<number>>} Endss.\n */\n getEndss() {\n return this.endss_;\n }\n\n /**\n * @return {Array<number>} Flat interior points.\n */\n getFlatInteriorPoints() {\n if (this.flatInteriorPointsRevision_ != this.getRevision()) {\n const flatCenters = linearRingssCenter(\n this.flatCoordinates,\n 0,\n this.endss_,\n this.stride\n );\n this.flatInteriorPoints_ = getInteriorPointsOfMultiArray(\n this.getOrientedFlatCoordinates(),\n 0,\n this.endss_,\n this.stride,\n flatCenters\n );\n this.flatInteriorPointsRevision_ = this.getRevision();\n }\n return this.flatInteriorPoints_;\n }\n\n /**\n * Return the interior points as {@link module:ol/geom/MultiPoint multipoint}.\n * @return {MultiPoint} Interior points as XYM coordinates, where M is\n * the length of the horizontal intersection that the point belongs to.\n * @api\n */\n getInteriorPoints() {\n return new MultiPoint(\n this.getFlatInteriorPoints().slice(),\n GeometryLayout.XYM\n );\n }\n\n /**\n * @return {Array<number>} Oriented flat coordinates.\n */\n getOrientedFlatCoordinates() {\n if (this.orientedRevision_ != this.getRevision()) {\n const flatCoordinates = this.flatCoordinates;\n if (\n linearRingssAreOriented(flatCoordinates, 0, this.endss_, this.stride)\n ) {\n this.orientedFlatCoordinates_ = flatCoordinates;\n } else {\n this.orientedFlatCoordinates_ = flatCoordinates.slice();\n this.orientedFlatCoordinates_.length = orientLinearRingsArray(\n this.orientedFlatCoordinates_,\n 0,\n this.endss_,\n this.stride\n );\n }\n this.orientedRevision_ = this.getRevision();\n }\n return this.orientedFlatCoordinates_;\n }\n\n /**\n * @param {number} squaredTolerance Squared tolerance.\n * @return {MultiPolygon} Simplified MultiPolygon.\n * @protected\n */\n getSimplifiedGeometryInternal(squaredTolerance) {\n const simplifiedFlatCoordinates = [];\n const simplifiedEndss = [];\n simplifiedFlatCoordinates.length = quantizeMultiArray(\n this.flatCoordinates,\n 0,\n this.endss_,\n this.stride,\n Math.sqrt(squaredTolerance),\n simplifiedFlatCoordinates,\n 0,\n simplifiedEndss\n );\n return new MultiPolygon(\n simplifiedFlatCoordinates,\n GeometryLayout.XY,\n simplifiedEndss\n );\n }\n\n /**\n * Return the polygon at the specified index.\n * @param {number} index Index.\n * @return {Polygon} Polygon.\n * @api\n */\n getPolygon(index) {\n if (index < 0 || this.endss_.length <= index) {\n return null;\n }\n let offset;\n if (index === 0) {\n offset = 0;\n } else {\n const prevEnds = this.endss_[index - 1];\n offset = prevEnds[prevEnds.length - 1];\n }\n const ends = this.endss_[index].slice();\n const end = ends[ends.length - 1];\n if (offset !== 0) {\n for (let i = 0, ii = ends.length; i < ii; ++i) {\n ends[i] -= offset;\n }\n }\n return new Polygon(\n this.flatCoordinates.slice(offset, end),\n this.layout,\n ends\n );\n }\n\n /**\n * Return the polygons of this multipolygon.\n * @return {Array<Polygon>} Polygons.\n * @api\n */\n getPolygons() {\n const layout = this.layout;\n const flatCoordinates = this.flatCoordinates;\n const endss = this.endss_;\n const polygons = [];\n let offset = 0;\n for (let i = 0, ii = endss.length; i < ii; ++i) {\n const ends = endss[i].slice();\n const end = ends[ends.length - 1];\n if (offset !== 0) {\n for (let j = 0, jj = ends.length; j < jj; ++j) {\n ends[j] -= offset;\n }\n }\n const polygon = new Polygon(\n flatCoordinates.slice(offset, end),\n layout,\n ends\n );\n polygons.push(polygon);\n offset = end;\n }\n return polygons;\n }\n\n /**\n * Get the type of this geometry.\n * @return {import(\"./GeometryType.js\").default} Geometry type.\n * @api\n */\n getType() {\n return GeometryType.MULTI_POLYGON;\n }\n\n /**\n * Test if the geometry and the passed extent intersect.\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @return {boolean} `true` if the geometry and the extent intersect.\n * @api\n */\n intersectsExtent(extent) {\n return intersectsLinearRingMultiArray(\n this.getOrientedFlatCoordinates(),\n 0,\n this.endss_,\n this.stride,\n extent\n );\n }\n\n /**\n * Set the coordinates of the multipolygon.\n * @param {!Array<Array<Array<import(\"../coordinate.js\").Coordinate>>>} coordinates Coordinates.\n * @param {import(\"./GeometryLayout.js\").default=} opt_layout Layout.\n * @api\n */\n setCoordinates(coordinates, opt_layout) {\n this.setLayout(opt_layout, coordinates, 3);\n if (!this.flatCoordinates) {\n this.flatCoordinates = [];\n }\n const endss = deflateMultiCoordinatesArray(\n this.flatCoordinates,\n 0,\n coordinates,\n this.stride,\n this.endss_\n );\n if (endss.length === 0) {\n this.flatCoordinates.length = 0;\n } else {\n const lastEnds = endss[endss.length - 1];\n this.flatCoordinates.length =\n lastEnds.length === 0 ? 0 : lastEnds[lastEnds.length - 1];\n }\n this.changed();\n }\n}\n\nexport default MultiPolygon;\n","/**\n * @module ol/interaction/Draw\n */\nimport Circle from '../geom/Circle.js';\nimport Event from '../events/Event.js';\nimport EventType from '../events/EventType.js';\nimport Feature from '../Feature.js';\nimport GeometryType from '../geom/GeometryType.js';\nimport InteractionProperty from './Property.js';\nimport LineString from '../geom/LineString.js';\nimport MapBrowserEvent from '../MapBrowserEvent.js';\nimport MapBrowserEventType from '../MapBrowserEventType.js';\nimport MultiLineString from '../geom/MultiLineString.js';\nimport MultiPoint from '../geom/MultiPoint.js';\nimport MultiPolygon from '../geom/MultiPolygon.js';\nimport Point from '../geom/Point.js';\nimport PointerInteraction from './Pointer.js';\nimport Polygon, {fromCircle, makeRegular} from '../geom/Polygon.js';\nimport VectorLayer from '../layer/Vector.js';\nimport VectorSource from '../source/Vector.js';\nimport {FALSE, TRUE} from '../functions.js';\nimport {always, noModifierKeys, shiftKeyOnly} from '../events/condition.js';\nimport {\n boundingExtent,\n getBottomLeft,\n getBottomRight,\n getTopLeft,\n getTopRight,\n} from '../extent.js';\nimport {createEditingStyle} from '../style/Style.js';\nimport {fromUserCoordinate, getUserProjection} from '../proj.js';\nimport {getChangeEventType} from '../Object.js';\nimport {squaredDistance as squaredCoordinateDistance} from '../coordinate.js';\n\n/**\n * @typedef {Object} Options\n * @property {import(\"../geom/GeometryType.js\").default} type Geometry type of\n * the geometries being drawn with this instance.\n * @property {number} [clickTolerance=6] The maximum distance in pixels between\n * \"down\" and \"up\" for a \"up\" event to be considered a \"click\" event and\n * actually add a point/vertex to the geometry being drawn. The default of `6`\n * was chosen for the draw interaction to behave correctly on mouse as well as\n * on touch devices.\n * @property {import(\"../Collection.js\").default<Feature>} [features]\n * Destination collection for the drawn features.\n * @property {VectorSource} [source] Destination source for\n * the drawn features.\n * @property {number} [dragVertexDelay=500] Delay in milliseconds after pointerdown\n * before the current vertex can be dragged to its exact position.\n * @property {number} [snapTolerance=12] Pixel distance for snapping to the\n * drawing finish.\n * @property {boolean} [stopClick=false] Stop click, singleclick, and\n * doubleclick events from firing during drawing.\n * @property {number} [maxPoints] The number of points that can be drawn before\n * a polygon ring or line string is finished. By default there is no\n * restriction.\n * @property {number} [minPoints] The number of points that must be drawn\n * before a polygon ring or line string can be finished. Default is `3` for\n * polygon rings and `2` for line strings.\n * @property {import(\"../events/condition.js\").Condition} [finishCondition] A function\n * that takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a\n * boolean to indicate whether the drawing can be finished.\n * @property {import(\"../style/Style.js\").StyleLike} [style]\n * Style for sketch features.\n * @property {GeometryFunction} [geometryFunction]\n * Function that is called when a geometry's coordinates are updated.\n * @property {string} [geometryName] Geometry name to use for features created\n * by the draw interaction.\n * @property {import(\"../events/condition.js\").Condition} [condition] A function that\n * takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a\n * boolean to indicate whether that event should be handled.\n * By default {@link module:ol/events/condition~noModifierKeys}, i.e. a click,\n * adds a vertex or deactivates freehand drawing.\n * @property {boolean} [freehand=false] Operate in freehand mode for lines,\n * polygons, and circles. This makes the interaction always operate in freehand\n * mode and takes precedence over any `freehandCondition` option.\n * @property {import(\"../events/condition.js\").Condition} [freehandCondition]\n * Condition that activates freehand drawing for lines and polygons. This\n * function takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and\n * returns a boolean to indicate whether that event should be handled. The\n * default is {@link module:ol/events/condition~shiftKeyOnly}, meaning that the\n * Shift key activates freehand drawing.\n * @property {boolean} [wrapX=false] Wrap the world horizontally on the sketch\n * overlay.\n */\n\n/**\n * Coordinate type when drawing points.\n * @typedef {import(\"../coordinate.js\").Coordinate} PointCoordType\n */\n\n/**\n * Coordinate type when drawing lines.\n * @typedef {Array<import(\"../coordinate.js\").Coordinate>} LineCoordType\n */\n\n/**\n * Coordinate type when drawing polygons.\n * @typedef {Array<Array<import(\"../coordinate.js\").Coordinate>>} PolyCoordType\n */\n\n/**\n * Types used for drawing coordinates.\n * @typedef {PointCoordType|LineCoordType|PolyCoordType} SketchCoordType\n */\n\n/**\n * Function that takes an array of coordinates and an optional existing geometry\n * and a projection as arguments, and returns a geometry. The optional existing\n * geometry is the geometry that is returned when the function is called without\n * a second argument.\n * @typedef {function(!SketchCoordType, import(\"../geom/SimpleGeometry.js\").default=,\n * import(\"../proj/Projection.js\").default=):\n * import(\"../geom/SimpleGeometry.js\").default} GeometryFunction\n */\n\n/**\n * Draw mode. This collapses multi-part geometry types with their single-part\n * cousins.\n * @enum {string}\n */\nconst Mode = {\n POINT: 'Point',\n LINE_STRING: 'LineString',\n POLYGON: 'Polygon',\n CIRCLE: 'Circle',\n};\n\n/**\n * @enum {string}\n */\nconst DrawEventType = {\n /**\n * Triggered upon feature draw start\n * @event DrawEvent#drawstart\n * @api\n */\n DRAWSTART: 'drawstart',\n /**\n * Triggered upon feature draw end\n * @event DrawEvent#drawend\n * @api\n */\n DRAWEND: 'drawend',\n /**\n * Triggered upon feature draw abortion\n * @event DrawEvent#drawabort\n * @api\n */\n DRAWABORT: 'drawabort',\n};\n\n/**\n * @classdesc\n * Events emitted by {@link module:ol/interaction/Draw~Draw} instances are\n * instances of this type.\n */\nclass DrawEvent extends Event {\n /**\n * @param {DrawEventType} type Type.\n * @param {Feature} feature The feature drawn.\n */\n constructor(type, feature) {\n super(type);\n\n /**\n * The feature being drawn.\n * @type {Feature}\n * @api\n */\n this.feature = feature;\n }\n}\n\n/**\n * @classdesc\n * Interaction for drawing feature geometries.\n *\n * @fires DrawEvent\n * @api\n */\nclass Draw extends PointerInteraction {\n /**\n * @param {Options} options Options.\n */\n constructor(options) {\n const pointerOptions = /** @type {import(\"./Pointer.js\").Options} */ (options);\n if (!pointerOptions.stopDown) {\n pointerOptions.stopDown = FALSE;\n }\n\n super(pointerOptions);\n\n /**\n * @type {boolean}\n * @private\n */\n this.shouldHandle_ = false;\n\n /**\n * @type {import(\"../pixel.js\").Pixel}\n * @private\n */\n this.downPx_ = null;\n\n /**\n * @type {?}\n * @private\n */\n this.downTimeout_;\n\n /**\n * @type {number|undefined}\n * @private\n */\n this.lastDragTime_;\n\n /**\n * @type {boolean}\n * @private\n */\n this.freehand_ = false;\n\n /**\n * Target source for drawn features.\n * @type {VectorSource}\n * @private\n */\n this.source_ = options.source ? options.source : null;\n\n /**\n * Target collection for drawn features.\n * @type {import(\"../Collection.js\").default<Feature>}\n * @private\n */\n this.features_ = options.features ? options.features : null;\n\n /**\n * Pixel distance for snapping.\n * @type {number}\n * @private\n */\n this.snapTolerance_ = options.snapTolerance ? options.snapTolerance : 12;\n\n /**\n * Geometry type.\n * @type {import(\"../geom/GeometryType.js\").default}\n * @private\n */\n this.type_ = /** @type {import(\"../geom/GeometryType.js\").default} */ (options.type);\n\n /**\n * Drawing mode (derived from geometry type.\n * @type {Mode}\n * @private\n */\n this.mode_ = getMode(this.type_);\n\n /**\n * Stop click, singleclick, and doubleclick events from firing during drawing.\n * Default is `false`.\n * @type {boolean}\n * @private\n */\n this.stopClick_ = !!options.stopClick;\n\n /**\n * The number of points that must be drawn before a polygon ring or line\n * string can be finished. The default is 3 for polygon rings and 2 for\n * line strings.\n * @type {number}\n * @private\n */\n this.minPoints_ = options.minPoints\n ? options.minPoints\n : this.mode_ === Mode.POLYGON\n ? 3\n : 2;\n\n /**\n * The number of points that can be drawn before a polygon ring or line string\n * is finished. The default is no restriction.\n * @type {number}\n * @private\n */\n this.maxPoints_ = options.maxPoints ? options.maxPoints : Infinity;\n\n /**\n * A function to decide if a potential finish coordinate is permissible\n * @private\n * @type {import(\"../events/condition.js\").Condition}\n */\n this.finishCondition_ = options.finishCondition\n ? options.finishCondition\n : TRUE;\n\n let geometryFunction = options.geometryFunction;\n if (!geometryFunction) {\n if (this.type_ === GeometryType.CIRCLE) {\n /**\n * @param {!LineCoordType} coordinates The coordinates.\n * @param {import(\"../geom/SimpleGeometry.js\").default=} opt_geometry Optional geometry.\n * @param {import(\"../proj/Projection.js\").default} projection The view projection.\n * @return {import(\"../geom/SimpleGeometry.js\").default} A geometry.\n */\n geometryFunction = function (coordinates, opt_geometry, projection) {\n const circle = opt_geometry\n ? /** @type {Circle} */ (opt_geometry)\n : new Circle([NaN, NaN]);\n const center = fromUserCoordinate(coordinates[0], projection);\n const squaredLength = squaredCoordinateDistance(\n center,\n fromUserCoordinate(coordinates[1], projection)\n );\n circle.setCenterAndRadius(center, Math.sqrt(squaredLength));\n const userProjection = getUserProjection();\n if (userProjection) {\n circle.transform(projection, userProjection);\n }\n return circle;\n };\n } else {\n let Constructor;\n const mode = this.mode_;\n if (mode === Mode.POINT) {\n Constructor = Point;\n } else if (mode === Mode.LINE_STRING) {\n Constructor = LineString;\n } else if (mode === Mode.POLYGON) {\n Constructor = Polygon;\n }\n /**\n * @param {!LineCoordType} coordinates The coordinates.\n * @param {import(\"../geom/SimpleGeometry.js\").default=} opt_geometry Optional geometry.\n * @param {import(\"../proj/Projection.js\").default} projection The view projection.\n * @return {import(\"../geom/SimpleGeometry.js\").default} A geometry.\n */\n geometryFunction = function (coordinates, opt_geometry, projection) {\n let geometry = opt_geometry;\n if (geometry) {\n if (mode === Mode.POLYGON) {\n if (coordinates[0].length) {\n // Add a closing coordinate to match the first\n geometry.setCoordinates([\n coordinates[0].concat([coordinates[0][0]]),\n ]);\n } else {\n geometry.setCoordinates([]);\n }\n } else {\n geometry.setCoordinates(coordinates);\n }\n } else {\n geometry = new Constructor(coordinates);\n }\n return geometry;\n };\n }\n }\n\n /**\n * @type {GeometryFunction}\n * @private\n */\n this.geometryFunction_ = geometryFunction;\n\n /**\n * @type {number}\n * @private\n */\n this.dragVertexDelay_ =\n options.dragVertexDelay !== undefined ? options.dragVertexDelay : 500;\n\n /**\n * Finish coordinate for the feature (first point for polygons, last point for\n * linestrings).\n * @type {import(\"../coordinate.js\").Coordinate}\n * @private\n */\n this.finishCoordinate_ = null;\n\n /**\n * Sketch feature.\n * @type {Feature}\n * @private\n */\n this.sketchFeature_ = null;\n\n /**\n * Sketch point.\n * @type {Feature<Point>}\n * @private\n */\n this.sketchPoint_ = null;\n\n /**\n * Sketch coordinates. Used when drawing a line or polygon.\n * @type {SketchCoordType}\n * @private\n */\n this.sketchCoords_ = null;\n\n /**\n * Sketch line. Used when drawing polygon.\n * @type {Feature<LineString>}\n * @private\n */\n this.sketchLine_ = null;\n\n /**\n * Sketch line coordinates. Used when drawing a polygon or circle.\n * @type {LineCoordType}\n * @private\n */\n this.sketchLineCoords_ = null;\n\n /**\n * Squared tolerance for handling up events. If the squared distance\n * between a down and up event is greater than this tolerance, up events\n * will not be handled.\n * @type {number}\n * @private\n */\n this.squaredClickTolerance_ = options.clickTolerance\n ? options.clickTolerance * options.clickTolerance\n : 36;\n\n /**\n * Draw overlay where our sketch features are drawn.\n * @type {VectorLayer}\n * @private\n */\n this.overlay_ = new VectorLayer({\n source: new VectorSource({\n useSpatialIndex: false,\n wrapX: options.wrapX ? options.wrapX : false,\n }),\n style: options.style ? options.style : getDefaultStyleFunction(),\n updateWhileInteracting: true,\n });\n\n /**\n * Name of the geometry attribute for newly created features.\n * @type {string|undefined}\n * @private\n */\n this.geometryName_ = options.geometryName;\n\n /**\n * @private\n * @type {import(\"../events/condition.js\").Condition}\n */\n this.condition_ = options.condition ? options.condition : noModifierKeys;\n\n /**\n * @private\n * @type {import(\"../events/condition.js\").Condition}\n */\n this.freehandCondition_;\n if (options.freehand) {\n this.freehandCondition_ = always;\n } else {\n this.freehandCondition_ = options.freehandCondition\n ? options.freehandCondition\n : shiftKeyOnly;\n }\n\n this.addEventListener(\n getChangeEventType(InteractionProperty.ACTIVE),\n this.updateState_\n );\n }\n\n /**\n * Remove the interaction from its current map and attach it to the new map.\n * Subclasses may set up event handlers to get notified about changes to\n * the map here.\n * @param {import(\"../PluggableMap.js\").default} map Map.\n */\n setMap(map) {\n super.setMap(map);\n this.updateState_();\n }\n\n /**\n * Get the overlay layer that this interaction renders sketch features to.\n * @return {VectorLayer} Overlay layer.\n * @api\n */\n getOverlay() {\n return this.overlay_;\n }\n\n /**\n * Handles the {@link module:ol/MapBrowserEvent map browser event} and may actually draw or finish the drawing.\n * @param {import(\"../MapBrowserEvent.js\").default} event Map browser event.\n * @return {boolean} `false` to stop event propagation.\n * @api\n */\n handleEvent(event) {\n if (event.originalEvent.type === EventType.CONTEXTMENU) {\n // Avoid context menu for long taps when drawing on mobile\n event.preventDefault();\n }\n this.freehand_ =\n this.mode_ !== Mode.POINT && this.freehandCondition_(event);\n let move = event.type === MapBrowserEventType.POINTERMOVE;\n let pass = true;\n if (\n !this.freehand_ &&\n this.lastDragTime_ &&\n event.type === MapBrowserEventType.POINTERDRAG\n ) {\n const now = Date.now();\n if (now - this.lastDragTime_ >= this.dragVertexDelay_) {\n this.downPx_ = event.pixel;\n this.shouldHandle_ = !this.freehand_;\n move = true;\n } else {\n this.lastDragTime_ = undefined;\n }\n if (this.shouldHandle_ && this.downTimeout_ !== undefined) {\n clearTimeout(this.downTimeout_);\n this.downTimeout_ = undefined;\n }\n }\n if (\n this.freehand_ &&\n event.type === MapBrowserEventType.POINTERDRAG &&\n this.sketchFeature_ !== null\n ) {\n this.addToDrawing_(event.coordinate);\n pass = false;\n } else if (\n this.freehand_ &&\n event.type === MapBrowserEventType.POINTERDOWN\n ) {\n pass = false;\n } else if (move) {\n pass = event.type === MapBrowserEventType.POINTERMOVE;\n if (pass && this.freehand_) {\n this.handlePointerMove_(event);\n if (this.shouldHandle_) {\n // Avoid page scrolling when freehand drawing on mobile\n event.preventDefault();\n }\n } else if (\n event.originalEvent.pointerType == 'mouse' ||\n (event.type === MapBrowserEventType.POINTERDRAG &&\n this.downTimeout_ === undefined)\n ) {\n this.handlePointerMove_(event);\n }\n } else if (event.type === MapBrowserEventType.DBLCLICK) {\n pass = false;\n }\n\n return super.handleEvent(event) && pass;\n }\n\n /**\n * Handle pointer down events.\n * @param {import(\"../MapBrowserEvent.js\").default} event Event.\n * @return {boolean} If the event was consumed.\n */\n handleDownEvent(event) {\n this.shouldHandle_ = !this.freehand_;\n\n if (this.freehand_) {\n this.downPx_ = event.pixel;\n if (!this.finishCoordinate_) {\n this.startDrawing_(event);\n }\n return true;\n } else if (this.condition_(event)) {\n this.lastDragTime_ = Date.now();\n this.downTimeout_ = setTimeout(\n function () {\n this.handlePointerMove_(\n new MapBrowserEvent(\n MapBrowserEventType.POINTERMOVE,\n event.map,\n event.originalEvent,\n false,\n event.frameState\n )\n );\n }.bind(this),\n this.dragVertexDelay_\n );\n this.downPx_ = event.pixel;\n return true;\n } else {\n this.lastDragTime_ = undefined;\n return false;\n }\n }\n\n /**\n * Handle pointer up events.\n * @param {import(\"../MapBrowserEvent.js\").default} event Event.\n * @return {boolean} If the event was consumed.\n */\n handleUpEvent(event) {\n let pass = true;\n\n if (this.downTimeout_) {\n clearTimeout(this.downTimeout_);\n this.downTimeout_ = undefined;\n }\n\n this.handlePointerMove_(event);\n\n const circleMode = this.mode_ === Mode.CIRCLE;\n\n if (this.shouldHandle_) {\n if (!this.finishCoordinate_) {\n this.startDrawing_(event);\n if (this.mode_ === Mode.POINT) {\n this.finishDrawing();\n }\n } else if (this.freehand_ || circleMode) {\n this.finishDrawing();\n } else if (this.atFinish_(event)) {\n if (this.finishCondition_(event)) {\n this.finishDrawing();\n }\n } else {\n this.addToDrawing_(event.coordinate);\n }\n pass = false;\n } else if (this.freehand_) {\n this.abortDrawing();\n }\n if (!pass && this.stopClick_) {\n event.stopPropagation();\n }\n return pass;\n }\n\n /**\n * Handle move events.\n * @param {import(\"../MapBrowserEvent.js\").default} event A move event.\n * @private\n */\n handlePointerMove_(event) {\n if (\n this.downPx_ &&\n ((!this.freehand_ && this.shouldHandle_) ||\n (this.freehand_ && !this.shouldHandle_))\n ) {\n const downPx = this.downPx_;\n const clickPx = event.pixel;\n const dx = downPx[0] - clickPx[0];\n const dy = downPx[1] - clickPx[1];\n const squaredDistance = dx * dx + dy * dy;\n this.shouldHandle_ = this.freehand_\n ? squaredDistance > this.squaredClickTolerance_\n : squaredDistance <= this.squaredClickTolerance_;\n if (!this.shouldHandle_) {\n return;\n }\n }\n\n if (this.finishCoordinate_) {\n this.modifyDrawing_(event);\n } else {\n this.createOrUpdateSketchPoint_(event);\n }\n }\n\n /**\n * Determine if an event is within the snapping tolerance of the start coord.\n * @param {import(\"../MapBrowserEvent.js\").default} event Event.\n * @return {boolean} The event is within the snapping tolerance of the start.\n * @private\n */\n atFinish_(event) {\n let at = false;\n if (this.sketchFeature_) {\n let potentiallyDone = false;\n let potentiallyFinishCoordinates = [this.finishCoordinate_];\n if (this.mode_ === Mode.LINE_STRING) {\n potentiallyDone = this.sketchCoords_.length > this.minPoints_;\n } else if (this.mode_ === Mode.POLYGON) {\n const sketchCoords = /** @type {PolyCoordType} */ (this.sketchCoords_);\n potentiallyDone = sketchCoords[0].length > this.minPoints_;\n potentiallyFinishCoordinates = [\n sketchCoords[0][0],\n sketchCoords[0][sketchCoords[0].length - 2],\n ];\n }\n if (potentiallyDone) {\n const map = event.map;\n for (let i = 0, ii = potentiallyFinishCoordinates.length; i < ii; i++) {\n const finishCoordinate = potentiallyFinishCoordinates[i];\n const finishPixel = map.getPixelFromCoordinate(finishCoordinate);\n const pixel = event.pixel;\n const dx = pixel[0] - finishPixel[0];\n const dy = pixel[1] - finishPixel[1];\n const snapTolerance = this.freehand_ ? 1 : this.snapTolerance_;\n at = Math.sqrt(dx * dx + dy * dy) <= snapTolerance;\n if (at) {\n this.finishCoordinate_ = finishCoordinate;\n break;\n }\n }\n }\n }\n return at;\n }\n\n /**\n * @param {import(\"../MapBrowserEvent.js\").default} event Event.\n * @private\n */\n createOrUpdateSketchPoint_(event) {\n const coordinates = event.coordinate.slice();\n if (!this.sketchPoint_) {\n this.sketchPoint_ = new Feature(new Point(coordinates));\n this.updateSketchFeatures_();\n } else {\n const sketchPointGeom = this.sketchPoint_.getGeometry();\n sketchPointGeom.setCoordinates(coordinates);\n }\n }\n\n /**\n * Start the drawing.\n * @param {import(\"../MapBrowserEvent.js\").default} event Event.\n * @private\n */\n startDrawing_(event) {\n const start = event.coordinate;\n const projection = event.map.getView().getProjection();\n this.finishCoordinate_ = start;\n if (this.mode_ === Mode.POINT) {\n this.sketchCoords_ = start.slice();\n } else if (this.mode_ === Mode.POLYGON) {\n this.sketchCoords_ = [[start.slice(), start.slice()]];\n this.sketchLineCoords_ = this.sketchCoords_[0];\n } else {\n this.sketchCoords_ = [start.slice(), start.slice()];\n }\n if (this.sketchLineCoords_) {\n this.sketchLine_ = new Feature(new LineString(this.sketchLineCoords_));\n }\n const geometry = this.geometryFunction_(\n this.sketchCoords_,\n undefined,\n projection\n );\n this.sketchFeature_ = new Feature();\n if (this.geometryName_) {\n this.sketchFeature_.setGeometryName(this.geometryName_);\n }\n this.sketchFeature_.setGeometry(geometry);\n this.updateSketchFeatures_();\n this.dispatchEvent(\n new DrawEvent(DrawEventType.DRAWSTART, this.sketchFeature_)\n );\n }\n\n /**\n * Modify the drawing.\n * @param {import(\"../MapBrowserEvent.js\").default} event Event.\n * @private\n */\n modifyDrawing_(event) {\n let coordinate = event.coordinate;\n const geometry = this.sketchFeature_.getGeometry();\n const projection = event.map.getView().getProjection();\n let coordinates, last;\n if (this.mode_ === Mode.POINT) {\n last = this.sketchCoords_;\n } else if (this.mode_ === Mode.POLYGON) {\n coordinates = /** @type {PolyCoordType} */ (this.sketchCoords_)[0];\n last = coordinates[coordinates.length - 1];\n if (this.atFinish_(event)) {\n // snap to finish\n coordinate = this.finishCoordinate_.slice();\n }\n } else {\n coordinates = this.sketchCoords_;\n last = coordinates[coordinates.length - 1];\n }\n last[0] = coordinate[0];\n last[1] = coordinate[1];\n this.geometryFunction_(\n /** @type {!LineCoordType} */ (this.sketchCoords_),\n geometry,\n projection\n );\n if (this.sketchPoint_) {\n const sketchPointGeom = this.sketchPoint_.getGeometry();\n sketchPointGeom.setCoordinates(coordinate);\n }\n /** @type {LineString} */\n let sketchLineGeom;\n if (\n geometry.getType() == GeometryType.POLYGON &&\n this.mode_ !== Mode.POLYGON\n ) {\n if (!this.sketchLine_) {\n this.sketchLine_ = new Feature();\n }\n const ring = geometry.getLinearRing(0);\n sketchLineGeom = this.sketchLine_.getGeometry();\n if (!sketchLineGeom) {\n sketchLineGeom = new LineString(\n ring.getFlatCoordinates(),\n ring.getLayout()\n );\n this.sketchLine_.setGeometry(sketchLineGeom);\n } else {\n sketchLineGeom.setFlatCoordinates(\n ring.getLayout(),\n ring.getFlatCoordinates()\n );\n sketchLineGeom.changed();\n }\n } else if (this.sketchLineCoords_) {\n sketchLineGeom = this.sketchLine_.getGeometry();\n sketchLineGeom.setCoordinates(this.sketchLineCoords_);\n }\n this.updateSketchFeatures_();\n }\n\n /**\n * Add a new coordinate to the drawing.\n * @param {!PointCoordType} coordinate Coordinate\n * @private\n */\n addToDrawing_(coordinate) {\n const geometry = this.sketchFeature_.getGeometry();\n const projection = this.getMap().getView().getProjection();\n let done;\n let coordinates;\n if (this.mode_ === Mode.LINE_STRING) {\n this.finishCoordinate_ = coordinate.slice();\n coordinates = /** @type {LineCoordType} */ (this.sketchCoords_);\n if (coordinates.length >= this.maxPoints_) {\n if (this.freehand_) {\n coordinates.pop();\n } else {\n done = true;\n }\n }\n coordinates.push(coordinate.slice());\n this.geometryFunction_(coordinates, geometry, projection);\n } else if (this.mode_ === Mode.POLYGON) {\n coordinates = /** @type {PolyCoordType} */ (this.sketchCoords_)[0];\n if (coordinates.length >= this.maxPoints_) {\n if (this.freehand_) {\n coordinates.pop();\n } else {\n done = true;\n }\n }\n coordinates.push(coordinate.slice());\n if (done) {\n this.finishCoordinate_ = coordinates[0];\n }\n this.geometryFunction_(this.sketchCoords_, geometry, projection);\n }\n this.updateSketchFeatures_();\n if (done) {\n this.finishDrawing();\n }\n }\n\n /**\n * Remove last point of the feature currently being drawn.\n * @api\n */\n removeLastPoint() {\n if (!this.sketchFeature_) {\n return;\n }\n const geometry = this.sketchFeature_.getGeometry();\n const projection = this.getMap().getView().getProjection();\n let coordinates;\n /** @type {LineString} */\n let sketchLineGeom;\n if (this.mode_ === Mode.LINE_STRING) {\n coordinates = /** @type {LineCoordType} */ (this.sketchCoords_);\n coordinates.splice(-2, 1);\n this.geometryFunction_(coordinates, geometry, projection);\n if (coordinates.length >= 2) {\n this.finishCoordinate_ = coordinates[coordinates.length - 2].slice();\n }\n } else if (this.mode_ === Mode.POLYGON) {\n coordinates = /** @type {PolyCoordType} */ (this.sketchCoords_)[0];\n coordinates.splice(-2, 1);\n sketchLineGeom = this.sketchLine_.getGeometry();\n sketchLineGeom.setCoordinates(coordinates);\n this.geometryFunction_(this.sketchCoords_, geometry, projection);\n }\n\n if (coordinates.length === 0) {\n this.abortDrawing();\n }\n\n this.updateSketchFeatures_();\n }\n\n /**\n * Stop drawing and add the sketch feature to the target layer.\n * The {@link module:ol/interaction/Draw~DrawEventType.DRAWEND} event is\n * dispatched before inserting the feature.\n * @api\n */\n finishDrawing() {\n const sketchFeature = this.abortDrawing_();\n if (!sketchFeature) {\n return;\n }\n let coordinates = this.sketchCoords_;\n const geometry = sketchFeature.getGeometry();\n const projection = this.getMap().getView().getProjection();\n if (this.mode_ === Mode.LINE_STRING) {\n // remove the redundant last point\n coordinates.pop();\n this.geometryFunction_(coordinates, geometry, projection);\n } else if (this.mode_ === Mode.POLYGON) {\n // remove the redundant last point in ring\n /** @type {PolyCoordType} */ (coordinates)[0].pop();\n this.geometryFunction_(coordinates, geometry, projection);\n coordinates = geometry.getCoordinates();\n }\n\n // cast multi-part geometries\n if (this.type_ === GeometryType.MULTI_POINT) {\n sketchFeature.setGeometry(\n new MultiPoint([/** @type {PointCoordType} */ (coordinates)])\n );\n } else if (this.type_ === GeometryType.MULTI_LINE_STRING) {\n sketchFeature.setGeometry(\n new MultiLineString([/** @type {LineCoordType} */ (coordinates)])\n );\n } else if (this.type_ === GeometryType.MULTI_POLYGON) {\n sketchFeature.setGeometry(\n new MultiPolygon([/** @type {PolyCoordType} */ (coordinates)])\n );\n }\n\n // First dispatch event to allow full set up of feature\n this.dispatchEvent(new DrawEvent(DrawEventType.DRAWEND, sketchFeature));\n\n // Then insert feature\n if (this.features_) {\n this.features_.push(sketchFeature);\n }\n if (this.source_) {\n this.source_.addFeature(sketchFeature);\n }\n }\n\n /**\n * Stop drawing without adding the sketch feature to the target layer.\n * @return {Feature} The sketch feature (or null if none).\n * @private\n */\n abortDrawing_() {\n this.finishCoordinate_ = null;\n const sketchFeature = this.sketchFeature_;\n this.sketchFeature_ = null;\n this.sketchPoint_ = null;\n this.sketchLine_ = null;\n this.overlay_.getSource().clear(true);\n return sketchFeature;\n }\n\n /**\n * Stop drawing without adding the sketch feature to the target layer.\n * @api\n */\n abortDrawing() {\n const sketchFeature = this.abortDrawing_();\n if (sketchFeature) {\n this.dispatchEvent(new DrawEvent(DrawEventType.DRAWABORT, sketchFeature));\n }\n }\n\n /**\n * Append coordinates to the end of the geometry that is currently being drawn.\n * This can be used when drawing LineStrings or Polygons. Coordinates will\n * either be appended to the current LineString or the outer ring of the current\n * Polygon.\n * @param {!LineCoordType} coordinates Linear coordinates to be appended into\n * the coordinate array.\n * @api\n */\n appendCoordinates(coordinates) {\n const mode = this.mode_;\n let sketchCoords = [];\n if (mode === Mode.LINE_STRING) {\n sketchCoords = /** @type {LineCoordType} */ this.sketchCoords_;\n } else if (mode === Mode.POLYGON) {\n sketchCoords =\n this.sketchCoords_ && this.sketchCoords_.length\n ? /** @type {PolyCoordType} */ (this.sketchCoords_)[0]\n : [];\n }\n\n // Remove last coordinate from sketch drawing (this coordinate follows cursor position)\n const ending = sketchCoords.pop();\n\n // Append coordinate list\n for (let i = 0; i < coordinates.length; i++) {\n this.addToDrawing_(coordinates[i]);\n }\n\n // Duplicate last coordinate for sketch drawing\n this.addToDrawing_(ending);\n }\n\n /**\n * Initiate draw mode by starting from an existing geometry which will\n * receive new additional points. This only works on features with\n * `LineString` geometries, where the interaction will extend lines by adding\n * points to the end of the coordinates array.\n * This will change the original feature, instead of drawing a copy.\n *\n * The function will dispatch a `drawstart` event.\n *\n * @param {!Feature<LineString>} feature Feature to be extended.\n * @api\n */\n extend(feature) {\n const geometry = feature.getGeometry();\n const lineString = geometry;\n this.sketchFeature_ = feature;\n this.sketchCoords_ = lineString.getCoordinates();\n const last = this.sketchCoords_[this.sketchCoords_.length - 1];\n this.finishCoordinate_ = last.slice();\n this.sketchCoords_.push(last.slice());\n this.updateSketchFeatures_();\n this.dispatchEvent(\n new DrawEvent(DrawEventType.DRAWSTART, this.sketchFeature_)\n );\n }\n\n /**\n * Redraw the sketch features.\n * @private\n */\n updateSketchFeatures_() {\n const sketchFeatures = [];\n if (this.sketchFeature_) {\n sketchFeatures.push(this.sketchFeature_);\n }\n if (this.sketchLine_) {\n sketchFeatures.push(this.sketchLine_);\n }\n if (this.sketchPoint_) {\n sketchFeatures.push(this.sketchPoint_);\n }\n const overlaySource = this.overlay_.getSource();\n overlaySource.clear(true);\n overlaySource.addFeatures(sketchFeatures);\n }\n\n /**\n * @private\n */\n updateState_() {\n const map = this.getMap();\n const active = this.getActive();\n if (!map || !active) {\n this.abortDrawing();\n }\n this.overlay_.setMap(active ? map : null);\n }\n}\n\n/**\n * @return {import(\"../style/Style.js\").StyleFunction} Styles.\n */\nfunction getDefaultStyleFunction() {\n const styles = createEditingStyle();\n return function (feature, resolution) {\n return styles[feature.getGeometry().getType()];\n };\n}\n\n/**\n * Create a `geometryFunction` for `type: 'Circle'` that will create a regular\n * polygon with a user specified number of sides and start angle instead of an\n * `import(\"../geom/Circle.js\").Circle` geometry.\n * @param {number=} opt_sides Number of sides of the regular polygon. Default is\n * 32.\n * @param {number=} opt_angle Angle of the first point in radians. 0 means East.\n * Default is the angle defined by the heading from the center of the\n * regular polygon to the current pointer position.\n * @return {GeometryFunction} Function that draws a\n * polygon.\n * @api\n */\nexport function createRegularPolygon(opt_sides, opt_angle) {\n return function (coordinates, opt_geometry, projection) {\n const center = fromUserCoordinate(\n /** @type {LineCoordType} */ (coordinates)[0],\n projection\n );\n const end = fromUserCoordinate(\n /** @type {LineCoordType} */ (coordinates)[1],\n projection\n );\n const radius = Math.sqrt(squaredCoordinateDistance(center, end));\n const geometry = opt_geometry\n ? /** @type {Polygon} */ (opt_geometry)\n : fromCircle(new Circle(center), opt_sides);\n let angle = opt_angle;\n if (!opt_angle) {\n const x = end[0] - center[0];\n const y = end[1] - center[1];\n angle = Math.atan(y / x) - (x < 0 ? Math.PI : 0);\n }\n makeRegular(geometry, center, radius, angle);\n const userProjection = getUserProjection();\n if (userProjection) {\n geometry.transform(projection, userProjection);\n }\n return geometry;\n };\n}\n\n/**\n * Create a `geometryFunction` that will create a box-shaped polygon (aligned\n * with the coordinate system axes). Use this with the draw interaction and\n * `type: 'Circle'` to return a box instead of a circle geometry.\n * @return {GeometryFunction} Function that draws a box-shaped polygon.\n * @api\n */\nexport function createBox() {\n return function (coordinates, opt_geometry, projection) {\n const extent = boundingExtent(\n /** @type {LineCoordType} */ (coordinates).map(function (coordinate) {\n return fromUserCoordinate(coordinate, projection);\n })\n );\n const boxCoordinates = [\n [\n getBottomLeft(extent),\n getBottomRight(extent),\n getTopRight(extent),\n getTopLeft(extent),\n getBottomLeft(extent),\n ],\n ];\n let geometry = opt_geometry;\n if (geometry) {\n geometry.setCoordinates(boxCoordinates);\n } else {\n geometry = new Polygon(boxCoordinates);\n }\n const userProjection = getUserProjection();\n if (userProjection) {\n geometry.transform(projection, userProjection);\n }\n return geometry;\n };\n}\n\n/**\n * Get the drawing mode. The mode for mult-part geometries is the same as for\n * their single-part cousins.\n * @param {import(\"../geom/GeometryType.js\").default} type Geometry type.\n * @return {Mode} Drawing mode.\n */\nfunction getMode(type) {\n let mode;\n if (type === GeometryType.POINT || type === GeometryType.MULTI_POINT) {\n mode = Mode.POINT;\n } else if (\n type === GeometryType.LINE_STRING ||\n type === GeometryType.MULTI_LINE_STRING\n ) {\n mode = Mode.LINE_STRING;\n } else if (\n type === GeometryType.POLYGON ||\n type === GeometryType.MULTI_POLYGON\n ) {\n mode = Mode.POLYGON;\n } else if (type === GeometryType.CIRCLE) {\n mode = Mode.CIRCLE;\n }\n return /** @type {!Mode} */ (mode);\n}\n\nexport default Draw;\n","/**\n * @module ol/interaction/Extent\n */\nimport Event from '../events/Event.js';\nimport Feature from '../Feature.js';\nimport GeometryType from '../geom/GeometryType.js';\nimport MapBrowserEventType from '../MapBrowserEventType.js';\nimport Point from '../geom/Point.js';\nimport PointerInteraction from './Pointer.js';\nimport VectorLayer from '../layer/Vector.js';\nimport VectorSource from '../source/Vector.js';\nimport {always} from '../events/condition.js';\nimport {boundingExtent, getArea} from '../extent.js';\nimport {\n closestOnSegment,\n distance as coordinateDistance,\n squaredDistance as squaredCoordinateDistance,\n squaredDistanceToSegment,\n} from '../coordinate.js';\nimport {createEditingStyle} from '../style/Style.js';\nimport {fromExtent as polygonFromExtent} from '../geom/Polygon.js';\nimport {toUserExtent} from '../proj.js';\n\n/**\n * @typedef {Object} Options\n * @property {import(\"../events/condition.js\").Condition} [condition] A function that\n * takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a\n * boolean to indicate whether that event should be handled.\n * Default is {@link module:ol/events/condition~always}.\n * @property {import(\"../extent.js\").Extent} [extent] Initial extent. Defaults to no\n * initial extent.\n * @property {import(\"../style/Style.js\").StyleLike} [boxStyle]\n * Style for the drawn extent box. Defaults to\n * {@link module:ol/style/Style~createEditing()['Polygon']}\n * @property {number} [pixelTolerance=10] Pixel tolerance for considering the\n * pointer close enough to a segment or vertex for editing.\n * @property {import(\"../style/Style.js\").StyleLike} [pointerStyle]\n * Style for the cursor used to draw the extent. Defaults to\n * {@link module:ol/style/Style~createEditing()['Point']}\n * @property {boolean} [wrapX=false] Wrap the drawn extent across multiple maps\n * in the X direction? Only affects visuals, not functionality.\n */\n\n/**\n * @enum {string}\n */\nconst ExtentEventType = {\n /**\n * Triggered after the extent is changed\n * @event ExtentEvent#extentchanged\n * @api\n */\n EXTENTCHANGED: 'extentchanged',\n};\n\n/**\n * @classdesc\n * Events emitted by {@link module:ol/interaction/Extent~Extent} instances are\n * instances of this type.\n */\nclass ExtentEvent extends Event {\n /**\n * @param {import(\"../extent.js\").Extent} extent the new extent\n */\n constructor(extent) {\n super(ExtentEventType.EXTENTCHANGED);\n\n /**\n * The current extent.\n * @type {import(\"../extent.js\").Extent}\n * @api\n */\n this.extent = extent;\n }\n}\n\n/**\n * @classdesc\n * Allows the user to draw a vector box by clicking and dragging on the map.\n * Once drawn, the vector box can be modified by dragging its vertices or edges.\n * This interaction is only supported for mouse devices.\n *\n * @fires ExtentEvent\n * @api\n */\nclass Extent extends PointerInteraction {\n /**\n * @param {Options=} opt_options Options.\n */\n constructor(opt_options) {\n const options = opt_options || {};\n\n super(/** @type {import(\"./Pointer.js\").Options} */ (options));\n\n /**\n * Condition\n * @type {import(\"../events/condition.js\").Condition}\n * @private\n */\n this.condition_ = options.condition ? options.condition : always;\n\n /**\n * Extent of the drawn box\n * @type {import(\"../extent.js\").Extent}\n * @private\n */\n this.extent_ = null;\n\n /**\n * Handler for pointer move events\n * @type {function (import(\"../coordinate.js\").Coordinate): import(\"../extent.js\").Extent|null}\n * @private\n */\n this.pointerHandler_ = null;\n\n /**\n * Pixel threshold to snap to extent\n * @type {number}\n * @private\n */\n this.pixelTolerance_ =\n options.pixelTolerance !== undefined ? options.pixelTolerance : 10;\n\n /**\n * Is the pointer snapped to an extent vertex\n * @type {boolean}\n * @private\n */\n this.snappedToVertex_ = false;\n\n /**\n * Feature for displaying the visible extent\n * @type {Feature}\n * @private\n */\n this.extentFeature_ = null;\n\n /**\n * Feature for displaying the visible pointer\n * @type {Feature<Point>}\n * @private\n */\n this.vertexFeature_ = null;\n\n if (!opt_options) {\n opt_options = {};\n }\n\n /**\n * Layer for the extentFeature\n * @type {VectorLayer}\n * @private\n */\n this.extentOverlay_ = new VectorLayer({\n source: new VectorSource({\n useSpatialIndex: false,\n wrapX: !!opt_options.wrapX,\n }),\n style: opt_options.boxStyle\n ? opt_options.boxStyle\n : getDefaultExtentStyleFunction(),\n updateWhileAnimating: true,\n updateWhileInteracting: true,\n });\n\n /**\n * Layer for the vertexFeature\n * @type {VectorLayer}\n * @private\n */\n this.vertexOverlay_ = new VectorLayer({\n source: new VectorSource({\n useSpatialIndex: false,\n wrapX: !!opt_options.wrapX,\n }),\n style: opt_options.pointerStyle\n ? opt_options.pointerStyle\n : getDefaultPointerStyleFunction(),\n updateWhileAnimating: true,\n updateWhileInteracting: true,\n });\n\n if (opt_options.extent) {\n this.setExtent(opt_options.extent);\n }\n }\n\n /**\n * @param {import(\"../pixel.js\").Pixel} pixel cursor location\n * @param {import(\"../PluggableMap.js\").default} map map\n * @returns {import(\"../coordinate.js\").Coordinate|null} snapped vertex on extent\n * @private\n */\n snapToVertex_(pixel, map) {\n const pixelCoordinate = map.getCoordinateFromPixelInternal(pixel);\n const sortByDistance = function (a, b) {\n return (\n squaredDistanceToSegment(pixelCoordinate, a) -\n squaredDistanceToSegment(pixelCoordinate, b)\n );\n };\n const extent = this.getExtentInternal();\n if (extent) {\n //convert extents to line segments and find the segment closest to pixelCoordinate\n const segments = getSegments(extent);\n segments.sort(sortByDistance);\n const closestSegment = segments[0];\n\n let vertex = closestOnSegment(pixelCoordinate, closestSegment);\n const vertexPixel = map.getPixelFromCoordinateInternal(vertex);\n\n //if the distance is within tolerance, snap to the segment\n if (coordinateDistance(pixel, vertexPixel) <= this.pixelTolerance_) {\n //test if we should further snap to a vertex\n const pixel1 = map.getPixelFromCoordinateInternal(closestSegment[0]);\n const pixel2 = map.getPixelFromCoordinateInternal(closestSegment[1]);\n const squaredDist1 = squaredCoordinateDistance(vertexPixel, pixel1);\n const squaredDist2 = squaredCoordinateDistance(vertexPixel, pixel2);\n const dist = Math.sqrt(Math.min(squaredDist1, squaredDist2));\n this.snappedToVertex_ = dist <= this.pixelTolerance_;\n if (this.snappedToVertex_) {\n vertex =\n squaredDist1 > squaredDist2 ? closestSegment[1] : closestSegment[0];\n }\n return vertex;\n }\n }\n return null;\n }\n\n /**\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent pointer move event\n * @private\n */\n handlePointerMove_(mapBrowserEvent) {\n const pixel = mapBrowserEvent.pixel;\n const map = mapBrowserEvent.map;\n\n let vertex = this.snapToVertex_(pixel, map);\n if (!vertex) {\n vertex = map.getCoordinateFromPixelInternal(pixel);\n }\n this.createOrUpdatePointerFeature_(vertex);\n }\n\n /**\n * @param {import(\"../extent.js\").Extent} extent extent\n * @returns {Feature} extent as featrue\n * @private\n */\n createOrUpdateExtentFeature_(extent) {\n let extentFeature = this.extentFeature_;\n\n if (!extentFeature) {\n if (!extent) {\n extentFeature = new Feature({});\n } else {\n extentFeature = new Feature(polygonFromExtent(extent));\n }\n this.extentFeature_ = extentFeature;\n this.extentOverlay_.getSource().addFeature(extentFeature);\n } else {\n if (!extent) {\n extentFeature.setGeometry(undefined);\n } else {\n extentFeature.setGeometry(polygonFromExtent(extent));\n }\n }\n return extentFeature;\n }\n\n /**\n * @param {import(\"../coordinate.js\").Coordinate} vertex location of feature\n * @returns {Feature} vertex as feature\n * @private\n */\n createOrUpdatePointerFeature_(vertex) {\n let vertexFeature = this.vertexFeature_;\n if (!vertexFeature) {\n vertexFeature = new Feature(new Point(vertex));\n this.vertexFeature_ = vertexFeature;\n this.vertexOverlay_.getSource().addFeature(vertexFeature);\n } else {\n const geometry = vertexFeature.getGeometry();\n geometry.setCoordinates(vertex);\n }\n return vertexFeature;\n }\n\n /**\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} `false` to stop event propagation.\n */\n handleEvent(mapBrowserEvent) {\n if (!mapBrowserEvent.originalEvent || !this.condition_(mapBrowserEvent)) {\n return true;\n }\n //display pointer (if not dragging)\n if (\n mapBrowserEvent.type == MapBrowserEventType.POINTERMOVE &&\n !this.handlingDownUpSequence\n ) {\n this.handlePointerMove_(mapBrowserEvent);\n }\n //call pointer to determine up/down/drag\n super.handleEvent(mapBrowserEvent);\n //return false to stop propagation\n return false;\n }\n\n /**\n * Handle pointer down events.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Event.\n * @return {boolean} If the event was consumed.\n */\n handleDownEvent(mapBrowserEvent) {\n const pixel = mapBrowserEvent.pixel;\n const map = mapBrowserEvent.map;\n\n const extent = this.getExtentInternal();\n let vertex = this.snapToVertex_(pixel, map);\n\n //find the extent corner opposite the passed corner\n const getOpposingPoint = function (point) {\n let x_ = null;\n let y_ = null;\n if (point[0] == extent[0]) {\n x_ = extent[2];\n } else if (point[0] == extent[2]) {\n x_ = extent[0];\n }\n if (point[1] == extent[1]) {\n y_ = extent[3];\n } else if (point[1] == extent[3]) {\n y_ = extent[1];\n }\n if (x_ !== null && y_ !== null) {\n return [x_, y_];\n }\n return null;\n };\n if (vertex && extent) {\n const x =\n vertex[0] == extent[0] || vertex[0] == extent[2] ? vertex[0] : null;\n const y =\n vertex[1] == extent[1] || vertex[1] == extent[3] ? vertex[1] : null;\n\n //snap to point\n if (x !== null && y !== null) {\n this.pointerHandler_ = getPointHandler(getOpposingPoint(vertex));\n //snap to edge\n } else if (x !== null) {\n this.pointerHandler_ = getEdgeHandler(\n getOpposingPoint([x, extent[1]]),\n getOpposingPoint([x, extent[3]])\n );\n } else if (y !== null) {\n this.pointerHandler_ = getEdgeHandler(\n getOpposingPoint([extent[0], y]),\n getOpposingPoint([extent[2], y])\n );\n }\n //no snap - new bbox\n } else {\n vertex = map.getCoordinateFromPixelInternal(pixel);\n this.setExtent([vertex[0], vertex[1], vertex[0], vertex[1]]);\n this.pointerHandler_ = getPointHandler(vertex);\n }\n return true; //event handled; start downup sequence\n }\n\n /**\n * Handle pointer drag events.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Event.\n */\n handleDragEvent(mapBrowserEvent) {\n if (this.pointerHandler_) {\n const pixelCoordinate = mapBrowserEvent.coordinate;\n this.setExtent(this.pointerHandler_(pixelCoordinate));\n this.createOrUpdatePointerFeature_(pixelCoordinate);\n }\n }\n\n /**\n * Handle pointer up events.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Event.\n * @return {boolean} If the event was consumed.\n */\n handleUpEvent(mapBrowserEvent) {\n this.pointerHandler_ = null;\n //If bbox is zero area, set to null;\n const extent = this.getExtentInternal();\n if (!extent || getArea(extent) === 0) {\n this.setExtent(null);\n }\n return false; //Stop handling downup sequence\n }\n\n /**\n * Remove the interaction from its current map and attach it to the new map.\n * Subclasses may set up event handlers to get notified about changes to\n * the map here.\n * @param {import(\"../PluggableMap.js\").default} map Map.\n */\n setMap(map) {\n this.extentOverlay_.setMap(map);\n this.vertexOverlay_.setMap(map);\n super.setMap(map);\n }\n\n /**\n * Returns the current drawn extent in the view projection (or user projection if set)\n *\n * @return {import(\"../extent.js\").Extent} Drawn extent in the view projection.\n * @api\n */\n getExtent() {\n return toUserExtent(\n this.getExtentInternal(),\n this.getMap().getView().getProjection()\n );\n }\n\n /**\n * Returns the current drawn extent in the view projection\n *\n * @return {import(\"../extent.js\").Extent} Drawn extent in the view projection.\n * @api\n */\n getExtentInternal() {\n return this.extent_;\n }\n\n /**\n * Manually sets the drawn extent, using the view projection.\n *\n * @param {import(\"../extent.js\").Extent} extent Extent\n * @api\n */\n setExtent(extent) {\n //Null extent means no bbox\n this.extent_ = extent ? extent : null;\n this.createOrUpdateExtentFeature_(extent);\n this.dispatchEvent(new ExtentEvent(this.extent_));\n }\n}\n\n/**\n * Returns the default style for the drawn bbox\n *\n * @return {import(\"../style/Style.js\").StyleFunction} Default Extent style\n */\nfunction getDefaultExtentStyleFunction() {\n const style = createEditingStyle();\n return function (feature, resolution) {\n return style[GeometryType.POLYGON];\n };\n}\n\n/**\n * Returns the default style for the pointer\n *\n * @return {import(\"../style/Style.js\").StyleFunction} Default pointer style\n */\nfunction getDefaultPointerStyleFunction() {\n const style = createEditingStyle();\n return function (feature, resolution) {\n return style[GeometryType.POINT];\n };\n}\n\n/**\n * @param {import(\"../coordinate.js\").Coordinate} fixedPoint corner that will be unchanged in the new extent\n * @returns {function (import(\"../coordinate.js\").Coordinate): import(\"../extent.js\").Extent} event handler\n */\nfunction getPointHandler(fixedPoint) {\n return function (point) {\n return boundingExtent([fixedPoint, point]);\n };\n}\n\n/**\n * @param {import(\"../coordinate.js\").Coordinate} fixedP1 first corner that will be unchanged in the new extent\n * @param {import(\"../coordinate.js\").Coordinate} fixedP2 second corner that will be unchanged in the new extent\n * @returns {function (import(\"../coordinate.js\").Coordinate): import(\"../extent.js\").Extent|null} event handler\n */\nfunction getEdgeHandler(fixedP1, fixedP2) {\n if (fixedP1[0] == fixedP2[0]) {\n return function (point) {\n return boundingExtent([fixedP1, [point[0], fixedP2[1]]]);\n };\n } else if (fixedP1[1] == fixedP2[1]) {\n return function (point) {\n return boundingExtent([fixedP1, [fixedP2[0], point[1]]]);\n };\n } else {\n return null;\n }\n}\n\n/**\n * @param {import(\"../extent.js\").Extent} extent extent\n * @returns {Array<Array<import(\"../coordinate.js\").Coordinate>>} extent line segments\n */\nfunction getSegments(extent) {\n return [\n [\n [extent[0], extent[1]],\n [extent[0], extent[3]],\n ],\n [\n [extent[0], extent[3]],\n [extent[2], extent[3]],\n ],\n [\n [extent[2], extent[3]],\n [extent[2], extent[1]],\n ],\n [\n [extent[2], extent[1]],\n [extent[0], extent[1]],\n ],\n ];\n}\n\nexport default Extent;\n","/**\n * @module ol/interaction/Modify\n */\nimport Collection from '../Collection.js';\nimport CollectionEventType from '../CollectionEventType.js';\nimport Event from '../events/Event.js';\nimport EventType from '../events/EventType.js';\nimport Feature from '../Feature.js';\nimport GeometryType from '../geom/GeometryType.js';\nimport MapBrowserEventType from '../MapBrowserEventType.js';\nimport Point from '../geom/Point.js';\nimport PointerInteraction from './Pointer.js';\nimport RBush from '../structs/RBush.js';\nimport VectorEventType from '../source/VectorEventType.js';\nimport VectorLayer from '../layer/Vector.js';\nimport VectorSource from '../source/Vector.js';\nimport {\n altKeyOnly,\n always,\n primaryAction,\n singleClick,\n} from '../events/condition.js';\nimport {\n boundingExtent,\n buffer as bufferExtent,\n createOrUpdateFromCoordinate as createExtent,\n} from '../extent.js';\nimport {\n closestOnSegment,\n distance as coordinateDistance,\n equals as coordinatesEqual,\n squaredDistance as squaredCoordinateDistance,\n squaredDistanceToSegment,\n} from '../coordinate.js';\nimport {createEditingStyle} from '../style/Style.js';\nimport {equals} from '../array.js';\nimport {fromCircle} from '../geom/Polygon.js';\nimport {\n fromUserCoordinate,\n fromUserExtent,\n getUserProjection,\n toUserCoordinate,\n toUserExtent,\n} from '../proj.js';\nimport {getUid} from '../util.js';\n\n/**\n * The segment index assigned to a circle's center when\n * breaking up a circle into ModifySegmentDataType segments.\n * @type {number}\n */\nconst CIRCLE_CENTER_INDEX = 0;\n\n/**\n * The segment index assigned to a circle's circumference when\n * breaking up a circle into ModifySegmentDataType segments.\n * @type {number}\n */\nconst CIRCLE_CIRCUMFERENCE_INDEX = 1;\n\nconst tempExtent = [0, 0, 0, 0];\nconst tempSegment = [];\n\n/**\n * @enum {string}\n */\nconst ModifyEventType = {\n /**\n * Triggered upon feature modification start\n * @event ModifyEvent#modifystart\n * @api\n */\n MODIFYSTART: 'modifystart',\n /**\n * Triggered upon feature modification end\n * @event ModifyEvent#modifyend\n * @api\n */\n MODIFYEND: 'modifyend',\n};\n\n/**\n * @typedef {Object} SegmentData\n * @property {Array<number>} [depth]\n * @property {Feature} feature\n * @property {import(\"../geom/SimpleGeometry.js\").default} geometry\n * @property {number} [index]\n * @property {Array<import(\"../extent.js\").Extent>} segment\n * @property {Array<SegmentData>} [featureSegments]\n */\n\n/**\n * @typedef {Object} Options\n * @property {import(\"../events/condition.js\").Condition} [condition] A function that\n * takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a\n * boolean to indicate whether that event will be considered to add or move a\n * vertex to the sketch. Default is\n * {@link module:ol/events/condition~primaryAction}.\n * @property {import(\"../events/condition.js\").Condition} [deleteCondition] A function\n * that takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a\n * boolean to indicate whether that event should be handled. By default,\n * {@link module:ol/events/condition~singleClick} with\n * {@link module:ol/events/condition~altKeyOnly} results in a vertex deletion.\n * @property {import(\"../events/condition.js\").Condition} [insertVertexCondition] A\n * function that takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and\n * returns a boolean to indicate whether a new vertex should be added to the sketch\n * features. Default is {@link module:ol/events/condition~always}.\n * @property {number} [pixelTolerance=10] Pixel tolerance for considering the\n * pointer close enough to a segment or vertex for editing.\n * @property {import(\"../style/Style.js\").StyleLike} [style]\n * Style used for the features being modified. By default the default edit\n * style is used (see {@link module:ol/style}).\n * @property {VectorSource} [source] The vector source with\n * features to modify. If a vector source is not provided, a feature collection\n * must be provided with the features option.\n * @property {Collection<Feature>} [features]\n * The features the interaction works on. If a feature collection is not\n * provided, a vector source must be provided with the source option.\n * @property {boolean} [wrapX=false] Wrap the world horizontally on the sketch\n * overlay.\n */\n\n/**\n * @classdesc\n * Events emitted by {@link module:ol/interaction/Modify~Modify} instances are\n * instances of this type.\n */\nexport class ModifyEvent extends Event {\n /**\n * @param {ModifyEventType} type Type.\n * @param {Collection<Feature>} features\n * The features modified.\n * @param {import(\"../MapBrowserEvent.js\").default} MapBrowserEvent\n * Associated {@link module:ol/MapBrowserEvent}.\n */\n constructor(type, features, MapBrowserEvent) {\n super(type);\n\n /**\n * The features being modified.\n * @type {Collection<Feature>}\n * @api\n */\n this.features = features;\n\n /**\n * Associated {@link module:ol/MapBrowserEvent}.\n * @type {import(\"../MapBrowserEvent.js\").default}\n * @api\n */\n this.mapBrowserEvent = MapBrowserEvent;\n }\n}\n\n/**\n * @classdesc\n * Interaction for modifying feature geometries. To modify features that have\n * been added to an existing source, construct the modify interaction with the\n * `source` option. If you want to modify features in a collection (for example,\n * the collection used by a select interaction), construct the interaction with\n * the `features` option. The interaction must be constructed with either a\n * `source` or `features` option.\n *\n * By default, the interaction will allow deletion of vertices when the `alt`\n * key is pressed. To configure the interaction with a different condition\n * for deletion, use the `deleteCondition` option.\n * @fires ModifyEvent\n * @api\n */\nclass Modify extends PointerInteraction {\n /**\n * @param {Options} options Options.\n */\n constructor(options) {\n super(/** @type {import(\"./Pointer.js\").Options} */ (options));\n\n /** @private */\n this.boundHandleFeatureChange_ = this.handleFeatureChange_.bind(this);\n\n /**\n * @private\n * @type {import(\"../events/condition.js\").Condition}\n */\n this.condition_ = options.condition ? options.condition : primaryAction;\n\n /**\n * @private\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Browser event.\n * @return {boolean} Combined condition result.\n */\n this.defaultDeleteCondition_ = function (mapBrowserEvent) {\n return altKeyOnly(mapBrowserEvent) && singleClick(mapBrowserEvent);\n };\n\n /**\n * @type {import(\"../events/condition.js\").Condition}\n * @private\n */\n this.deleteCondition_ = options.deleteCondition\n ? options.deleteCondition\n : this.defaultDeleteCondition_;\n\n /**\n * @type {import(\"../events/condition.js\").Condition}\n * @private\n */\n this.insertVertexCondition_ = options.insertVertexCondition\n ? options.insertVertexCondition\n : always;\n\n /**\n * Editing vertex.\n * @type {Feature}\n * @private\n */\n this.vertexFeature_ = null;\n\n /**\n * Segments intersecting {@link this.vertexFeature_} by segment uid.\n * @type {Object<string, boolean>}\n * @private\n */\n this.vertexSegments_ = null;\n\n /**\n * @type {import(\"../pixel.js\").Pixel}\n * @private\n */\n this.lastPixel_ = [0, 0];\n\n /**\n * Tracks if the next `singleclick` event should be ignored to prevent\n * accidental deletion right after vertex creation.\n * @type {boolean}\n * @private\n */\n this.ignoreNextSingleClick_ = false;\n\n /**\n * @type {boolean}\n * @private\n */\n this.modified_ = false;\n\n /**\n * Segment RTree for each layer\n * @type {RBush<SegmentData>}\n * @private\n */\n this.rBush_ = new RBush();\n\n /**\n * @type {number}\n * @private\n */\n this.pixelTolerance_ =\n options.pixelTolerance !== undefined ? options.pixelTolerance : 10;\n\n /**\n * @type {boolean}\n * @private\n */\n this.snappedToVertex_ = false;\n\n /**\n * Indicate whether the interaction is currently changing a feature's\n * coordinates.\n * @type {boolean}\n * @private\n */\n this.changingFeature_ = false;\n\n /**\n * @type {Array}\n * @private\n */\n this.dragSegments_ = [];\n\n /**\n * Draw overlay where sketch features are drawn.\n * @type {VectorLayer}\n * @private\n */\n this.overlay_ = new VectorLayer({\n source: new VectorSource({\n useSpatialIndex: false,\n wrapX: !!options.wrapX,\n }),\n style: options.style ? options.style : getDefaultStyleFunction(),\n updateWhileAnimating: true,\n updateWhileInteracting: true,\n });\n\n /**\n * @const\n * @private\n * @type {!Object<string, function(Feature, import(\"../geom/Geometry.js\").default): void>}\n */\n this.SEGMENT_WRITERS_ = {\n 'Point': this.writePointGeometry_.bind(this),\n 'LineString': this.writeLineStringGeometry_.bind(this),\n 'LinearRing': this.writeLineStringGeometry_.bind(this),\n 'Polygon': this.writePolygonGeometry_.bind(this),\n 'MultiPoint': this.writeMultiPointGeometry_.bind(this),\n 'MultiLineString': this.writeMultiLineStringGeometry_.bind(this),\n 'MultiPolygon': this.writeMultiPolygonGeometry_.bind(this),\n 'Circle': this.writeCircleGeometry_.bind(this),\n 'GeometryCollection': this.writeGeometryCollectionGeometry_.bind(this),\n };\n\n /**\n * @type {VectorSource}\n * @private\n */\n this.source_ = null;\n\n let features;\n if (options.source) {\n this.source_ = options.source;\n features = new Collection(this.source_.getFeatures());\n this.source_.addEventListener(\n VectorEventType.ADDFEATURE,\n this.handleSourceAdd_.bind(this)\n );\n this.source_.addEventListener(\n VectorEventType.REMOVEFEATURE,\n this.handleSourceRemove_.bind(this)\n );\n } else {\n features = options.features;\n }\n if (!features) {\n throw new Error('The modify interaction requires features or a source');\n }\n\n /**\n * @type {Collection<Feature>}\n * @private\n */\n this.features_ = features;\n\n this.features_.forEach(this.addFeature_.bind(this));\n this.features_.addEventListener(\n CollectionEventType.ADD,\n this.handleFeatureAdd_.bind(this)\n );\n this.features_.addEventListener(\n CollectionEventType.REMOVE,\n this.handleFeatureRemove_.bind(this)\n );\n\n /**\n * @type {import(\"../MapBrowserEvent.js\").default}\n * @private\n */\n this.lastPointerEvent_ = null;\n }\n\n /**\n * @param {Feature} feature Feature.\n * @private\n */\n addFeature_(feature) {\n const geometry = feature.getGeometry();\n if (geometry) {\n const writer = this.SEGMENT_WRITERS_[geometry.getType()];\n if (writer) {\n writer(feature, geometry);\n }\n }\n const map = this.getMap();\n if (map && map.isRendered() && this.getActive()) {\n this.handlePointerAtPixel_(this.lastPixel_, map);\n }\n feature.addEventListener(EventType.CHANGE, this.boundHandleFeatureChange_);\n }\n\n /**\n * @param {import(\"../MapBrowserEvent.js\").default} evt Map browser event\n * @private\n */\n willModifyFeatures_(evt) {\n if (!this.modified_) {\n this.modified_ = true;\n this.dispatchEvent(\n new ModifyEvent(ModifyEventType.MODIFYSTART, this.features_, evt)\n );\n }\n }\n\n /**\n * @param {Feature} feature Feature.\n * @private\n */\n removeFeature_(feature) {\n this.removeFeatureSegmentData_(feature);\n // Remove the vertex feature if the collection of canditate features is empty.\n if (this.vertexFeature_ && this.features_.getLength() === 0) {\n this.overlay_.getSource().removeFeature(this.vertexFeature_);\n this.vertexFeature_ = null;\n }\n feature.removeEventListener(\n EventType.CHANGE,\n this.boundHandleFeatureChange_\n );\n }\n\n /**\n * @param {Feature} feature Feature.\n * @private\n */\n removeFeatureSegmentData_(feature) {\n const rBush = this.rBush_;\n /** @type {Array<SegmentData>} */\n const nodesToRemove = [];\n rBush.forEach(\n /**\n * @param {SegmentData} node RTree node.\n */\n function (node) {\n if (feature === node.feature) {\n nodesToRemove.push(node);\n }\n }\n );\n for (let i = nodesToRemove.length - 1; i >= 0; --i) {\n const nodeToRemove = nodesToRemove[i];\n for (let j = this.dragSegments_.length - 1; j >= 0; --j) {\n if (this.dragSegments_[j][0] === nodeToRemove) {\n this.dragSegments_.splice(j, 1);\n }\n }\n rBush.remove(nodeToRemove);\n }\n }\n\n /**\n * Activate or deactivate the interaction.\n * @param {boolean} active Active.\n * @observable\n * @api\n */\n setActive(active) {\n if (this.vertexFeature_ && !active) {\n this.overlay_.getSource().removeFeature(this.vertexFeature_);\n this.vertexFeature_ = null;\n }\n super.setActive(active);\n }\n\n /**\n * Remove the interaction from its current map and attach it to the new map.\n * Subclasses may set up event handlers to get notified about changes to\n * the map here.\n * @param {import(\"../PluggableMap.js\").default} map Map.\n */\n setMap(map) {\n this.overlay_.setMap(map);\n super.setMap(map);\n }\n\n /**\n * Get the overlay layer that this interaction renders sketch features to.\n * @return {VectorLayer} Overlay layer.\n * @api\n */\n getOverlay() {\n return this.overlay_;\n }\n\n /**\n * @param {import(\"../source/Vector.js\").VectorSourceEvent} event Event.\n * @private\n */\n handleSourceAdd_(event) {\n if (event.feature) {\n this.features_.push(event.feature);\n }\n }\n\n /**\n * @param {import(\"../source/Vector.js\").VectorSourceEvent} event Event.\n * @private\n */\n handleSourceRemove_(event) {\n if (event.feature) {\n this.features_.remove(event.feature);\n }\n }\n\n /**\n * @param {import(\"../Collection.js\").CollectionEvent} evt Event.\n * @private\n */\n handleFeatureAdd_(evt) {\n this.addFeature_(/** @type {Feature} */ (evt.element));\n }\n\n /**\n * @param {import(\"../events/Event.js\").default} evt Event.\n * @private\n */\n handleFeatureChange_(evt) {\n if (!this.changingFeature_) {\n const feature = /** @type {Feature} */ (evt.target);\n this.removeFeature_(feature);\n this.addFeature_(feature);\n }\n }\n\n /**\n * @param {import(\"../Collection.js\").CollectionEvent} evt Event.\n * @private\n */\n handleFeatureRemove_(evt) {\n const feature = /** @type {Feature} */ (evt.element);\n this.removeFeature_(feature);\n }\n\n /**\n * @param {Feature} feature Feature\n * @param {Point} geometry Geometry.\n * @private\n */\n writePointGeometry_(feature, geometry) {\n const coordinates = geometry.getCoordinates();\n\n /** @type {SegmentData} */\n const segmentData = {\n feature: feature,\n geometry: geometry,\n segment: [coordinates, coordinates],\n };\n\n this.rBush_.insert(geometry.getExtent(), segmentData);\n }\n\n /**\n * @param {Feature} feature Feature\n * @param {import(\"../geom/MultiPoint.js\").default} geometry Geometry.\n * @private\n */\n writeMultiPointGeometry_(feature, geometry) {\n const points = geometry.getCoordinates();\n for (let i = 0, ii = points.length; i < ii; ++i) {\n const coordinates = points[i];\n\n /** @type {SegmentData} */\n const segmentData = {\n feature: feature,\n geometry: geometry,\n depth: [i],\n index: i,\n segment: [coordinates, coordinates],\n };\n\n this.rBush_.insert(geometry.getExtent(), segmentData);\n }\n }\n\n /**\n * @param {Feature} feature Feature\n * @param {import(\"../geom/LineString.js\").default} geometry Geometry.\n * @private\n */\n writeLineStringGeometry_(feature, geometry) {\n const coordinates = geometry.getCoordinates();\n for (let i = 0, ii = coordinates.length - 1; i < ii; ++i) {\n const segment = coordinates.slice(i, i + 2);\n\n /** @type {SegmentData} */\n const segmentData = {\n feature: feature,\n geometry: geometry,\n index: i,\n segment: segment,\n };\n\n this.rBush_.insert(boundingExtent(segment), segmentData);\n }\n }\n\n /**\n * @param {Feature} feature Feature\n * @param {import(\"../geom/MultiLineString.js\").default} geometry Geometry.\n * @private\n */\n writeMultiLineStringGeometry_(feature, geometry) {\n const lines = geometry.getCoordinates();\n for (let j = 0, jj = lines.length; j < jj; ++j) {\n const coordinates = lines[j];\n for (let i = 0, ii = coordinates.length - 1; i < ii; ++i) {\n const segment = coordinates.slice(i, i + 2);\n\n /** @type {SegmentData} */\n const segmentData = {\n feature: feature,\n geometry: geometry,\n depth: [j],\n index: i,\n segment: segment,\n };\n\n this.rBush_.insert(boundingExtent(segment), segmentData);\n }\n }\n }\n\n /**\n * @param {Feature} feature Feature\n * @param {import(\"../geom/Polygon.js\").default} geometry Geometry.\n * @private\n */\n writePolygonGeometry_(feature, geometry) {\n const rings = geometry.getCoordinates();\n for (let j = 0, jj = rings.length; j < jj; ++j) {\n const coordinates = rings[j];\n for (let i = 0, ii = coordinates.length - 1; i < ii; ++i) {\n const segment = coordinates.slice(i, i + 2);\n\n /** @type {SegmentData} */\n const segmentData = {\n feature: feature,\n geometry: geometry,\n depth: [j],\n index: i,\n segment: segment,\n };\n\n this.rBush_.insert(boundingExtent(segment), segmentData);\n }\n }\n }\n\n /**\n * @param {Feature} feature Feature\n * @param {import(\"../geom/MultiPolygon.js\").default} geometry Geometry.\n * @private\n */\n writeMultiPolygonGeometry_(feature, geometry) {\n const polygons = geometry.getCoordinates();\n for (let k = 0, kk = polygons.length; k < kk; ++k) {\n const rings = polygons[k];\n for (let j = 0, jj = rings.length; j < jj; ++j) {\n const coordinates = rings[j];\n for (let i = 0, ii = coordinates.length - 1; i < ii; ++i) {\n const segment = coordinates.slice(i, i + 2);\n\n /** @type {SegmentData} */\n const segmentData = {\n feature: feature,\n geometry: geometry,\n depth: [j, k],\n index: i,\n segment: segment,\n };\n\n this.rBush_.insert(boundingExtent(segment), segmentData);\n }\n }\n }\n }\n\n /**\n * We convert a circle into two segments. The segment at index\n * {@link CIRCLE_CENTER_INDEX} is the\n * circle's center (a point). The segment at index\n * {@link CIRCLE_CIRCUMFERENCE_INDEX} is\n * the circumference, and is not a line segment.\n *\n * @param {Feature} feature Feature.\n * @param {import(\"../geom/Circle.js\").default} geometry Geometry.\n * @private\n */\n writeCircleGeometry_(feature, geometry) {\n const coordinates = geometry.getCenter();\n\n /** @type {SegmentData} */\n const centerSegmentData = {\n feature: feature,\n geometry: geometry,\n index: CIRCLE_CENTER_INDEX,\n segment: [coordinates, coordinates],\n };\n\n /** @type {SegmentData} */\n const circumferenceSegmentData = {\n feature: feature,\n geometry: geometry,\n index: CIRCLE_CIRCUMFERENCE_INDEX,\n segment: [coordinates, coordinates],\n };\n\n const featureSegments = [centerSegmentData, circumferenceSegmentData];\n centerSegmentData.featureSegments = featureSegments;\n circumferenceSegmentData.featureSegments = featureSegments;\n this.rBush_.insert(createExtent(coordinates), centerSegmentData);\n let circleGeometry = /** @type {import(\"../geom/Geometry.js\").default} */ (geometry);\n const userProjection = getUserProjection();\n if (userProjection && this.getMap()) {\n const projection = this.getMap().getView().getProjection();\n circleGeometry = circleGeometry\n .clone()\n .transform(userProjection, projection);\n circleGeometry = fromCircle(\n /** @type {import(\"../geom/Circle.js\").default} */ (circleGeometry)\n ).transform(projection, userProjection);\n }\n this.rBush_.insert(circleGeometry.getExtent(), circumferenceSegmentData);\n }\n\n /**\n * @param {Feature} feature Feature\n * @param {import(\"../geom/GeometryCollection.js\").default} geometry Geometry.\n * @private\n */\n writeGeometryCollectionGeometry_(feature, geometry) {\n const geometries = geometry.getGeometriesArray();\n for (let i = 0; i < geometries.length; ++i) {\n const geometry = geometries[i];\n const writer = this.SEGMENT_WRITERS_[geometry.getType()];\n writer(feature, geometry);\n }\n }\n\n /**\n * @param {import(\"../coordinate.js\").Coordinate} coordinates Coordinates.\n * @return {Feature} Vertex feature.\n * @private\n */\n createOrUpdateVertexFeature_(coordinates) {\n let vertexFeature = this.vertexFeature_;\n if (!vertexFeature) {\n vertexFeature = new Feature(new Point(coordinates));\n this.vertexFeature_ = vertexFeature;\n this.overlay_.getSource().addFeature(vertexFeature);\n } else {\n const geometry = vertexFeature.getGeometry();\n geometry.setCoordinates(coordinates);\n }\n return vertexFeature;\n }\n\n /**\n * Handles the {@link module:ol/MapBrowserEvent map browser event} and may modify the geometry.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} `false` to stop event propagation.\n */\n handleEvent(mapBrowserEvent) {\n if (!mapBrowserEvent.originalEvent) {\n return true;\n }\n this.lastPointerEvent_ = mapBrowserEvent;\n\n let handled;\n if (\n !mapBrowserEvent.map.getView().getInteracting() &&\n mapBrowserEvent.type == MapBrowserEventType.POINTERMOVE &&\n !this.handlingDownUpSequence\n ) {\n this.handlePointerMove_(mapBrowserEvent);\n }\n if (this.vertexFeature_ && this.deleteCondition_(mapBrowserEvent)) {\n if (\n mapBrowserEvent.type != MapBrowserEventType.SINGLECLICK ||\n !this.ignoreNextSingleClick_\n ) {\n handled = this.removePoint();\n } else {\n handled = true;\n }\n }\n\n if (mapBrowserEvent.type == MapBrowserEventType.SINGLECLICK) {\n this.ignoreNextSingleClick_ = false;\n }\n\n return super.handleEvent(mapBrowserEvent) && !handled;\n }\n\n /**\n * Handle pointer drag events.\n * @param {import(\"../MapBrowserEvent.js\").default} evt Event.\n */\n handleDragEvent(evt) {\n this.ignoreNextSingleClick_ = false;\n this.willModifyFeatures_(evt);\n\n const vertex = evt.coordinate;\n for (let i = 0, ii = this.dragSegments_.length; i < ii; ++i) {\n const dragSegment = this.dragSegments_[i];\n const segmentData = dragSegment[0];\n const depth = segmentData.depth;\n const geometry = segmentData.geometry;\n let coordinates;\n const segment = segmentData.segment;\n const index = dragSegment[1];\n\n while (vertex.length < geometry.getStride()) {\n vertex.push(segment[index][vertex.length]);\n }\n\n switch (geometry.getType()) {\n case GeometryType.POINT:\n coordinates = vertex;\n segment[0] = vertex;\n segment[1] = vertex;\n break;\n case GeometryType.MULTI_POINT:\n coordinates = geometry.getCoordinates();\n coordinates[segmentData.index] = vertex;\n segment[0] = vertex;\n segment[1] = vertex;\n break;\n case GeometryType.LINE_STRING:\n coordinates = geometry.getCoordinates();\n coordinates[segmentData.index + index] = vertex;\n segment[index] = vertex;\n break;\n case GeometryType.MULTI_LINE_STRING:\n coordinates = geometry.getCoordinates();\n coordinates[depth[0]][segmentData.index + index] = vertex;\n segment[index] = vertex;\n break;\n case GeometryType.POLYGON:\n coordinates = geometry.getCoordinates();\n coordinates[depth[0]][segmentData.index + index] = vertex;\n segment[index] = vertex;\n break;\n case GeometryType.MULTI_POLYGON:\n coordinates = geometry.getCoordinates();\n coordinates[depth[1]][depth[0]][segmentData.index + index] = vertex;\n segment[index] = vertex;\n break;\n case GeometryType.CIRCLE:\n segment[0] = vertex;\n segment[1] = vertex;\n if (segmentData.index === CIRCLE_CENTER_INDEX) {\n this.changingFeature_ = true;\n geometry.setCenter(vertex);\n this.changingFeature_ = false;\n } else {\n // We're dragging the circle's circumference:\n this.changingFeature_ = true;\n const projection = evt.map.getView().getProjection();\n let radius = coordinateDistance(\n fromUserCoordinate(geometry.getCenter(), projection),\n fromUserCoordinate(vertex, projection)\n );\n const userProjection = getUserProjection();\n if (userProjection) {\n const circleGeometry = geometry\n .clone()\n .transform(userProjection, projection);\n circleGeometry.setRadius(radius);\n radius = circleGeometry\n .transform(projection, userProjection)\n .getRadius();\n }\n geometry.setRadius(radius);\n this.changingFeature_ = false;\n }\n break;\n default:\n // pass\n }\n\n if (coordinates) {\n this.setGeometryCoordinates_(geometry, coordinates);\n }\n }\n this.createOrUpdateVertexFeature_(vertex);\n }\n\n /**\n * Handle pointer down events.\n * @param {import(\"../MapBrowserEvent.js\").default} evt Event.\n * @return {boolean} If the event was consumed.\n */\n handleDownEvent(evt) {\n if (!this.condition_(evt)) {\n return false;\n }\n const pixelCoordinate = evt.coordinate;\n this.handlePointerAtPixel_(evt.pixel, evt.map, pixelCoordinate);\n this.dragSegments_.length = 0;\n this.modified_ = false;\n const vertexFeature = this.vertexFeature_;\n if (vertexFeature) {\n const projection = evt.map.getView().getProjection();\n const insertVertices = [];\n const vertex = vertexFeature.getGeometry().getCoordinates();\n const vertexExtent = boundingExtent([vertex]);\n const segmentDataMatches = this.rBush_.getInExtent(vertexExtent);\n const componentSegments = {};\n segmentDataMatches.sort(compareIndexes);\n for (let i = 0, ii = segmentDataMatches.length; i < ii; ++i) {\n const segmentDataMatch = segmentDataMatches[i];\n const segment = segmentDataMatch.segment;\n let uid = getUid(segmentDataMatch.geometry);\n const depth = segmentDataMatch.depth;\n if (depth) {\n uid += '-' + depth.join('-'); // separate feature components\n }\n if (!componentSegments[uid]) {\n componentSegments[uid] = new Array(2);\n }\n\n if (\n segmentDataMatch.geometry.getType() === GeometryType.CIRCLE &&\n segmentDataMatch.index === CIRCLE_CIRCUMFERENCE_INDEX\n ) {\n const closestVertex = closestOnSegmentData(\n pixelCoordinate,\n segmentDataMatch,\n projection\n );\n if (\n coordinatesEqual(closestVertex, vertex) &&\n !componentSegments[uid][0]\n ) {\n this.dragSegments_.push([segmentDataMatch, 0]);\n componentSegments[uid][0] = segmentDataMatch;\n }\n continue;\n }\n\n if (\n coordinatesEqual(segment[0], vertex) &&\n !componentSegments[uid][0]\n ) {\n this.dragSegments_.push([segmentDataMatch, 0]);\n componentSegments[uid][0] = segmentDataMatch;\n continue;\n }\n\n if (\n coordinatesEqual(segment[1], vertex) &&\n !componentSegments[uid][1]\n ) {\n // prevent dragging closed linestrings by the connecting node\n if (\n (segmentDataMatch.geometry.getType() === GeometryType.LINE_STRING ||\n segmentDataMatch.geometry.getType() ===\n GeometryType.MULTI_LINE_STRING) &&\n componentSegments[uid][0] &&\n componentSegments[uid][0].index === 0\n ) {\n continue;\n }\n\n this.dragSegments_.push([segmentDataMatch, 1]);\n componentSegments[uid][1] = segmentDataMatch;\n continue;\n }\n\n if (\n getUid(segment) in this.vertexSegments_ &&\n !componentSegments[uid][0] &&\n !componentSegments[uid][1] &&\n this.insertVertexCondition_(evt)\n ) {\n insertVertices.push([segmentDataMatch, vertex]);\n }\n }\n\n if (insertVertices.length) {\n this.willModifyFeatures_(evt);\n }\n\n for (let j = insertVertices.length - 1; j >= 0; --j) {\n this.insertVertex_.apply(this, insertVertices[j]);\n }\n }\n return !!this.vertexFeature_;\n }\n\n /**\n * Handle pointer up events.\n * @param {import(\"../MapBrowserEvent.js\").default} evt Event.\n * @return {boolean} If the event was consumed.\n */\n handleUpEvent(evt) {\n for (let i = this.dragSegments_.length - 1; i >= 0; --i) {\n const segmentData = this.dragSegments_[i][0];\n const geometry = segmentData.geometry;\n if (geometry.getType() === GeometryType.CIRCLE) {\n // Update a circle object in the R* bush:\n const coordinates = geometry.getCenter();\n const centerSegmentData = segmentData.featureSegments[0];\n const circumferenceSegmentData = segmentData.featureSegments[1];\n centerSegmentData.segment[0] = coordinates;\n centerSegmentData.segment[1] = coordinates;\n circumferenceSegmentData.segment[0] = coordinates;\n circumferenceSegmentData.segment[1] = coordinates;\n this.rBush_.update(createExtent(coordinates), centerSegmentData);\n let circleGeometry = geometry;\n const userProjection = getUserProjection();\n if (userProjection) {\n const projection = evt.map.getView().getProjection();\n circleGeometry = circleGeometry\n .clone()\n .transform(userProjection, projection);\n circleGeometry = fromCircle(circleGeometry).transform(\n projection,\n userProjection\n );\n }\n this.rBush_.update(\n circleGeometry.getExtent(),\n circumferenceSegmentData\n );\n } else {\n this.rBush_.update(boundingExtent(segmentData.segment), segmentData);\n }\n }\n if (this.modified_) {\n this.dispatchEvent(\n new ModifyEvent(ModifyEventType.MODIFYEND, this.features_, evt)\n );\n this.modified_ = false;\n }\n return false;\n }\n\n /**\n * @param {import(\"../MapBrowserEvent.js\").default} evt Event.\n * @private\n */\n handlePointerMove_(evt) {\n this.lastPixel_ = evt.pixel;\n this.handlePointerAtPixel_(evt.pixel, evt.map, evt.coordinate);\n }\n\n /**\n * @param {import(\"../pixel.js\").Pixel} pixel Pixel\n * @param {import(\"../PluggableMap.js\").default} map Map.\n * @param {import(\"../coordinate.js\").Coordinate=} opt_coordinate The pixel Coordinate.\n * @private\n */\n handlePointerAtPixel_(pixel, map, opt_coordinate) {\n const pixelCoordinate = opt_coordinate || map.getCoordinateFromPixel(pixel);\n const projection = map.getView().getProjection();\n const sortByDistance = function (a, b) {\n return (\n projectedDistanceToSegmentDataSquared(pixelCoordinate, a, projection) -\n projectedDistanceToSegmentDataSquared(pixelCoordinate, b, projection)\n );\n };\n\n const viewExtent = fromUserExtent(\n createExtent(pixelCoordinate, tempExtent),\n projection\n );\n const buffer = map.getView().getResolution() * this.pixelTolerance_;\n const box = toUserExtent(\n bufferExtent(viewExtent, buffer, tempExtent),\n projection\n );\n\n const rBush = this.rBush_;\n const nodes = rBush.getInExtent(box);\n if (nodes.length > 0) {\n nodes.sort(sortByDistance);\n const node = nodes[0];\n const closestSegment = node.segment;\n let vertex = closestOnSegmentData(pixelCoordinate, node, projection);\n const vertexPixel = map.getPixelFromCoordinate(vertex);\n let dist = coordinateDistance(pixel, vertexPixel);\n if (dist <= this.pixelTolerance_) {\n /** @type {Object<string, boolean>} */\n const vertexSegments = {};\n\n if (\n node.geometry.getType() === GeometryType.CIRCLE &&\n node.index === CIRCLE_CIRCUMFERENCE_INDEX\n ) {\n this.snappedToVertex_ = true;\n this.createOrUpdateVertexFeature_(vertex);\n } else {\n const pixel1 = map.getPixelFromCoordinate(closestSegment[0]);\n const pixel2 = map.getPixelFromCoordinate(closestSegment[1]);\n const squaredDist1 = squaredCoordinateDistance(vertexPixel, pixel1);\n const squaredDist2 = squaredCoordinateDistance(vertexPixel, pixel2);\n dist = Math.sqrt(Math.min(squaredDist1, squaredDist2));\n this.snappedToVertex_ = dist <= this.pixelTolerance_;\n if (this.snappedToVertex_) {\n vertex =\n squaredDist1 > squaredDist2\n ? closestSegment[1]\n : closestSegment[0];\n }\n this.createOrUpdateVertexFeature_(vertex);\n for (let i = 1, ii = nodes.length; i < ii; ++i) {\n const segment = nodes[i].segment;\n if (\n (coordinatesEqual(closestSegment[0], segment[0]) &&\n coordinatesEqual(closestSegment[1], segment[1])) ||\n (coordinatesEqual(closestSegment[0], segment[1]) &&\n coordinatesEqual(closestSegment[1], segment[0]))\n ) {\n vertexSegments[getUid(segment)] = true;\n } else {\n break;\n }\n }\n }\n\n vertexSegments[getUid(closestSegment)] = true;\n this.vertexSegments_ = vertexSegments;\n return;\n }\n }\n if (this.vertexFeature_) {\n this.overlay_.getSource().removeFeature(this.vertexFeature_);\n this.vertexFeature_ = null;\n }\n }\n\n /**\n * @param {SegmentData} segmentData Segment data.\n * @param {import(\"../coordinate.js\").Coordinate} vertex Vertex.\n * @private\n */\n insertVertex_(segmentData, vertex) {\n const segment = segmentData.segment;\n const feature = segmentData.feature;\n const geometry = segmentData.geometry;\n const depth = segmentData.depth;\n const index = segmentData.index;\n let coordinates;\n\n while (vertex.length < geometry.getStride()) {\n vertex.push(0);\n }\n\n switch (geometry.getType()) {\n case GeometryType.MULTI_LINE_STRING:\n coordinates = geometry.getCoordinates();\n coordinates[depth[0]].splice(index + 1, 0, vertex);\n break;\n case GeometryType.POLYGON:\n coordinates = geometry.getCoordinates();\n coordinates[depth[0]].splice(index + 1, 0, vertex);\n break;\n case GeometryType.MULTI_POLYGON:\n coordinates = geometry.getCoordinates();\n coordinates[depth[1]][depth[0]].splice(index + 1, 0, vertex);\n break;\n case GeometryType.LINE_STRING:\n coordinates = geometry.getCoordinates();\n coordinates.splice(index + 1, 0, vertex);\n break;\n default:\n return;\n }\n\n this.setGeometryCoordinates_(geometry, coordinates);\n const rTree = this.rBush_;\n rTree.remove(segmentData);\n this.updateSegmentIndices_(geometry, index, depth, 1);\n\n /** @type {SegmentData} */\n const newSegmentData = {\n segment: [segment[0], vertex],\n feature: feature,\n geometry: geometry,\n depth: depth,\n index: index,\n };\n\n rTree.insert(boundingExtent(newSegmentData.segment), newSegmentData);\n this.dragSegments_.push([newSegmentData, 1]);\n\n /** @type {SegmentData} */\n const newSegmentData2 = {\n segment: [vertex, segment[1]],\n feature: feature,\n geometry: geometry,\n depth: depth,\n index: index + 1,\n };\n\n rTree.insert(boundingExtent(newSegmentData2.segment), newSegmentData2);\n this.dragSegments_.push([newSegmentData2, 0]);\n this.ignoreNextSingleClick_ = true;\n }\n\n /**\n * Removes the vertex currently being pointed.\n * @return {boolean} True when a vertex was removed.\n * @api\n */\n removePoint() {\n if (\n this.lastPointerEvent_ &&\n this.lastPointerEvent_.type != MapBrowserEventType.POINTERDRAG\n ) {\n const evt = this.lastPointerEvent_;\n this.willModifyFeatures_(evt);\n const removed = this.removeVertex_();\n this.dispatchEvent(\n new ModifyEvent(ModifyEventType.MODIFYEND, this.features_, evt)\n );\n this.modified_ = false;\n return removed;\n }\n return false;\n }\n\n /**\n * Removes a vertex from all matching features.\n * @return {boolean} True when a vertex was removed.\n * @private\n */\n removeVertex_() {\n const dragSegments = this.dragSegments_;\n const segmentsByFeature = {};\n let deleted = false;\n let component, coordinates, dragSegment, geometry, i, index, left;\n let newIndex, right, segmentData, uid;\n for (i = dragSegments.length - 1; i >= 0; --i) {\n dragSegment = dragSegments[i];\n segmentData = dragSegment[0];\n uid = getUid(segmentData.feature);\n if (segmentData.depth) {\n // separate feature components\n uid += '-' + segmentData.depth.join('-');\n }\n if (!(uid in segmentsByFeature)) {\n segmentsByFeature[uid] = {};\n }\n if (dragSegment[1] === 0) {\n segmentsByFeature[uid].right = segmentData;\n segmentsByFeature[uid].index = segmentData.index;\n } else if (dragSegment[1] == 1) {\n segmentsByFeature[uid].left = segmentData;\n segmentsByFeature[uid].index = segmentData.index + 1;\n }\n }\n for (uid in segmentsByFeature) {\n right = segmentsByFeature[uid].right;\n left = segmentsByFeature[uid].left;\n index = segmentsByFeature[uid].index;\n newIndex = index - 1;\n if (left !== undefined) {\n segmentData = left;\n } else {\n segmentData = right;\n }\n if (newIndex < 0) {\n newIndex = 0;\n }\n geometry = segmentData.geometry;\n coordinates = geometry.getCoordinates();\n component = coordinates;\n deleted = false;\n switch (geometry.getType()) {\n case GeometryType.MULTI_LINE_STRING:\n if (coordinates[segmentData.depth[0]].length > 2) {\n coordinates[segmentData.depth[0]].splice(index, 1);\n deleted = true;\n }\n break;\n case GeometryType.LINE_STRING:\n if (coordinates.length > 2) {\n coordinates.splice(index, 1);\n deleted = true;\n }\n break;\n case GeometryType.MULTI_POLYGON:\n component = component[segmentData.depth[1]];\n /* falls through */\n case GeometryType.POLYGON:\n component = component[segmentData.depth[0]];\n if (component.length > 4) {\n if (index == component.length - 1) {\n index = 0;\n }\n component.splice(index, 1);\n deleted = true;\n if (index === 0) {\n // close the ring again\n component.pop();\n component.push(component[0]);\n newIndex = component.length - 1;\n }\n }\n break;\n default:\n // pass\n }\n\n if (deleted) {\n this.setGeometryCoordinates_(geometry, coordinates);\n const segments = [];\n if (left !== undefined) {\n this.rBush_.remove(left);\n segments.push(left.segment[0]);\n }\n if (right !== undefined) {\n this.rBush_.remove(right);\n segments.push(right.segment[1]);\n }\n if (left !== undefined && right !== undefined) {\n /** @type {SegmentData} */\n const newSegmentData = {\n depth: segmentData.depth,\n feature: segmentData.feature,\n geometry: segmentData.geometry,\n index: newIndex,\n segment: segments,\n };\n\n this.rBush_.insert(\n boundingExtent(newSegmentData.segment),\n newSegmentData\n );\n }\n this.updateSegmentIndices_(geometry, index, segmentData.depth, -1);\n if (this.vertexFeature_) {\n this.overlay_.getSource().removeFeature(this.vertexFeature_);\n this.vertexFeature_ = null;\n }\n dragSegments.length = 0;\n }\n }\n return deleted;\n }\n\n /**\n * @param {import(\"../geom/SimpleGeometry.js\").default} geometry Geometry.\n * @param {Array} coordinates Coordinates.\n * @private\n */\n setGeometryCoordinates_(geometry, coordinates) {\n this.changingFeature_ = true;\n geometry.setCoordinates(coordinates);\n this.changingFeature_ = false;\n }\n\n /**\n * @param {import(\"../geom/SimpleGeometry.js\").default} geometry Geometry.\n * @param {number} index Index.\n * @param {Array<number>|undefined} depth Depth.\n * @param {number} delta Delta (1 or -1).\n * @private\n */\n updateSegmentIndices_(geometry, index, depth, delta) {\n this.rBush_.forEachInExtent(geometry.getExtent(), function (\n segmentDataMatch\n ) {\n if (\n segmentDataMatch.geometry === geometry &&\n (depth === undefined ||\n segmentDataMatch.depth === undefined ||\n equals(segmentDataMatch.depth, depth)) &&\n segmentDataMatch.index > index\n ) {\n segmentDataMatch.index += delta;\n }\n });\n }\n}\n\n/**\n * @param {SegmentData} a The first segment data.\n * @param {SegmentData} b The second segment data.\n * @return {number} The difference in indexes.\n */\nfunction compareIndexes(a, b) {\n return a.index - b.index;\n}\n\n/**\n * Returns the distance from a point to a line segment.\n *\n * @param {import(\"../coordinate.js\").Coordinate} pointCoordinates The coordinates of the point from\n * which to calculate the distance.\n * @param {SegmentData} segmentData The object describing the line\n * segment we are calculating the distance to.\n * @param {import(\"../proj/Projection.js\").default} projection The view projection.\n * @return {number} The square of the distance between a point and a line segment.\n */\nfunction projectedDistanceToSegmentDataSquared(\n pointCoordinates,\n segmentData,\n projection\n) {\n const geometry = segmentData.geometry;\n\n if (geometry.getType() === GeometryType.CIRCLE) {\n let circleGeometry = /** @type {import(\"../geom/Circle.js\").default} */ (geometry);\n\n if (segmentData.index === CIRCLE_CIRCUMFERENCE_INDEX) {\n const userProjection = getUserProjection();\n if (userProjection) {\n circleGeometry = /** @type {import(\"../geom/Circle.js\").default} */ (circleGeometry\n .clone()\n .transform(userProjection, projection));\n }\n const distanceToCenterSquared = squaredCoordinateDistance(\n circleGeometry.getCenter(),\n fromUserCoordinate(pointCoordinates, projection)\n );\n const distanceToCircumference =\n Math.sqrt(distanceToCenterSquared) - circleGeometry.getRadius();\n return distanceToCircumference * distanceToCircumference;\n }\n }\n\n const coordinate = fromUserCoordinate(pointCoordinates, projection);\n tempSegment[0] = fromUserCoordinate(segmentData.segment[0], projection);\n tempSegment[1] = fromUserCoordinate(segmentData.segment[1], projection);\n return squaredDistanceToSegment(coordinate, tempSegment);\n}\n\n/**\n * Returns the point closest to a given line segment.\n *\n * @param {import(\"../coordinate.js\").Coordinate} pointCoordinates The point to which a closest point\n * should be found.\n * @param {SegmentData} segmentData The object describing the line\n * segment which should contain the closest point.\n * @param {import(\"../proj/Projection.js\").default} projection The view projection.\n * @return {import(\"../coordinate.js\").Coordinate} The point closest to the specified line segment.\n */\nfunction closestOnSegmentData(pointCoordinates, segmentData, projection) {\n const geometry = segmentData.geometry;\n\n if (\n geometry.getType() === GeometryType.CIRCLE &&\n segmentData.index === CIRCLE_CIRCUMFERENCE_INDEX\n ) {\n let circleGeometry = /** @type {import(\"../geom/Circle.js\").default} */ (geometry);\n const userProjection = getUserProjection();\n if (userProjection) {\n circleGeometry = /** @type {import(\"../geom/Circle.js\").default} */ (circleGeometry\n .clone()\n .transform(userProjection, projection));\n }\n return toUserCoordinate(\n circleGeometry.getClosestPoint(\n fromUserCoordinate(pointCoordinates, projection)\n ),\n projection\n );\n }\n const coordinate = fromUserCoordinate(pointCoordinates, projection);\n tempSegment[0] = fromUserCoordinate(segmentData.segment[0], projection);\n tempSegment[1] = fromUserCoordinate(segmentData.segment[1], projection);\n return toUserCoordinate(\n closestOnSegment(coordinate, tempSegment),\n projection\n );\n}\n\n/**\n * @return {import(\"../style/Style.js\").StyleFunction} Styles.\n */\nfunction getDefaultStyleFunction() {\n const style = createEditingStyle();\n return function (feature, resolution) {\n return style[GeometryType.POINT];\n };\n}\n\nexport default Modify;\n","/**\n * @module ol/interaction/Select\n */\nimport Collection from '../Collection.js';\nimport CollectionEventType from '../CollectionEventType.js';\nimport Event from '../events/Event.js';\nimport GeometryType from '../geom/GeometryType.js';\nimport Interaction from './Interaction.js';\nimport {TRUE} from '../functions.js';\nimport {clear} from '../obj.js';\nimport {createEditingStyle} from '../style/Style.js';\nimport {extend, includes} from '../array.js';\nimport {getUid} from '../util.js';\nimport {never, shiftKeyOnly, singleClick} from '../events/condition.js';\n\n/**\n * @enum {string}\n */\nconst SelectEventType = {\n /**\n * Triggered when feature(s) has been (de)selected.\n * @event SelectEvent#select\n * @api\n */\n SELECT: 'select',\n};\n\n/**\n * A function that takes an {@link module:ol/Feature} or\n * {@link module:ol/render/Feature} and an\n * {@link module:ol/layer/Layer} and returns `true` if the feature may be\n * selected or `false` otherwise.\n * @typedef {function(import(\"../Feature.js\").FeatureLike, import(\"../layer/Layer.js\").default):boolean} FilterFunction\n */\n\n/**\n * @typedef {Object} Options\n * @property {import(\"../events/condition.js\").Condition} [addCondition] A function\n * that takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a\n * boolean to indicate whether that event should be handled.\n * By default, this is {@link module:ol/events/condition~never}. Use this if you\n * want to use different events for add and remove instead of `toggle`.\n * @property {import(\"../events/condition.js\").Condition} [condition] A function that\n * takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a\n * boolean to indicate whether that event should be handled. This is the event\n * for the selected features as a whole. By default, this is\n * {@link module:ol/events/condition~singleClick}. Clicking on a feature selects that\n * feature and removes any that were in the selection. Clicking outside any\n * feature removes all from the selection.\n * See `toggle`, `add`, `remove` options for adding/removing extra features to/\n * from the selection.\n * @property {Array<import(\"../layer/Layer.js\").default>|function(import(\"../layer/Layer.js\").default): boolean} [layers]\n * A list of layers from which features should be selected. Alternatively, a\n * filter function can be provided. The function will be called for each layer\n * in the map and should return `true` for layers that you want to be\n * selectable. If the option is absent, all visible layers will be considered\n * selectable.\n * @property {import(\"../style/Style.js\").StyleLike|null} [style]\n * Style for the selected features. By default the default edit style is used\n * (see {@link module:ol/style}). Set to `null` if this interaction should not apply\n * any style changes for selected features.\n * If set to a falsey value, the selected feature's style will not change.\n * @property {import(\"../events/condition.js\").Condition} [removeCondition] A function\n * that takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a\n * boolean to indicate whether that event should be handled.\n * By default, this is {@link module:ol/events/condition~never}. Use this if you\n * want to use different events for add and remove instead of `toggle`.\n * @property {import(\"../events/condition.js\").Condition} [toggleCondition] A function\n * that takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a\n * boolean to indicate whether that event should be handled. This is in addition\n * to the `condition` event. By default,\n * {@link module:ol/events/condition~shiftKeyOnly}, i.e. pressing `shift` as\n * well as the `condition` event, adds that feature to the current selection if\n * it is not currently selected, and removes it if it is. See `add` and `remove`\n * if you want to use different events instead of a toggle.\n * @property {boolean} [multi=false] A boolean that determines if the default\n * behaviour should select only single features or all (overlapping) features at\n * the clicked map position. The default of `false` means single select.\n * @property {import(\"../Collection.js\").default<import(\"../Feature.js\").default>} [features]\n * Collection where the interaction will place selected features. Optional. If\n * not set the interaction will create a collection. In any case the collection\n * used by the interaction is returned by\n * {@link module:ol/interaction/Select~Select#getFeatures}.\n * @property {FilterFunction} [filter] A function\n * that takes an {@link module:ol/Feature} and an\n * {@link module:ol/layer/Layer} and returns `true` if the feature may be\n * selected or `false` otherwise.\n * @property {number} [hitTolerance=0] Hit-detection tolerance. Pixels inside\n * the radius around the given position will be checked for features.\n */\n\n/**\n * @classdesc\n * Events emitted by {@link module:ol/interaction/Select~Select} instances are instances of\n * this type.\n */\nclass SelectEvent extends Event {\n /**\n * @param {SelectEventType} type The event type.\n * @param {Array<import(\"../Feature.js\").default>} selected Selected features.\n * @param {Array<import(\"../Feature.js\").default>} deselected Deselected features.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Associated\n * {@link module:ol/MapBrowserEvent}.\n */\n constructor(type, selected, deselected, mapBrowserEvent) {\n super(type);\n\n /**\n * Selected features array.\n * @type {Array<import(\"../Feature.js\").default>}\n * @api\n */\n this.selected = selected;\n\n /**\n * Deselected features array.\n * @type {Array<import(\"../Feature.js\").default>}\n * @api\n */\n this.deselected = deselected;\n\n /**\n * Associated {@link module:ol/MapBrowserEvent}.\n * @type {import(\"../MapBrowserEvent.js\").default}\n * @api\n */\n this.mapBrowserEvent = mapBrowserEvent;\n }\n}\n\n/**\n * Original feature styles to reset to when features are no longer selected.\n * @type {Object.<number, import(\"../style/Style.js\").default|Array.<import(\"../style/Style.js\").default>|import(\"../style/Style.js\").StyleFunction>}\n */\nconst originalFeatureStyles = {};\n\n/**\n * @classdesc\n * Interaction for selecting vector features. By default, selected features are\n * styled differently, so this interaction can be used for visual highlighting,\n * as well as selecting features for other actions, such as modification or\n * output. There are three ways of controlling which features are selected:\n * using the browser event as defined by the `condition` and optionally the\n * `toggle`, `add`/`remove`, and `multi` options; a `layers` filter; and a\n * further feature filter using the `filter` option.\n *\n * Selected features are added to an internal unmanaged layer.\n *\n * @fires SelectEvent\n * @api\n */\nclass Select extends Interaction {\n /**\n * @param {Options=} opt_options Options.\n */\n constructor(opt_options) {\n super();\n\n const options = opt_options ? opt_options : {};\n\n /**\n * @private\n */\n this.boundAddFeature_ = this.addFeature_.bind(this);\n\n /**\n * @private\n */\n this.boundRemoveFeature_ = this.removeFeature_.bind(this);\n\n /**\n * @private\n * @type {import(\"../events/condition.js\").Condition}\n */\n this.condition_ = options.condition ? options.condition : singleClick;\n\n /**\n * @private\n * @type {import(\"../events/condition.js\").Condition}\n */\n this.addCondition_ = options.addCondition ? options.addCondition : never;\n\n /**\n * @private\n * @type {import(\"../events/condition.js\").Condition}\n */\n this.removeCondition_ = options.removeCondition\n ? options.removeCondition\n : never;\n\n /**\n * @private\n * @type {import(\"../events/condition.js\").Condition}\n */\n this.toggleCondition_ = options.toggleCondition\n ? options.toggleCondition\n : shiftKeyOnly;\n\n /**\n * @private\n * @type {boolean}\n */\n this.multi_ = options.multi ? options.multi : false;\n\n /**\n * @private\n * @type {FilterFunction}\n */\n this.filter_ = options.filter ? options.filter : TRUE;\n\n /**\n * @private\n * @type {number}\n */\n this.hitTolerance_ = options.hitTolerance ? options.hitTolerance : 0;\n\n /**\n * @private\n * @type {import(\"../style/Style.js\").default|Array.<import(\"../style/Style.js\").default>|import(\"../style/Style.js\").StyleFunction|null}\n */\n this.style_ =\n options.style !== undefined ? options.style : getDefaultStyleFunction();\n\n /**\n * @private\n * @type {import(\"../Collection.js\").default}\n */\n this.features_ = options.features || new Collection();\n\n /** @type {function(import(\"../layer/Layer.js\").default): boolean} */\n let layerFilter;\n if (options.layers) {\n if (typeof options.layers === 'function') {\n layerFilter = options.layers;\n } else {\n const layers = options.layers;\n layerFilter = function (layer) {\n return includes(layers, layer);\n };\n }\n } else {\n layerFilter = TRUE;\n }\n\n /**\n * @private\n * @type {function(import(\"../layer/Layer.js\").default): boolean}\n */\n this.layerFilter_ = layerFilter;\n\n /**\n * An association between selected feature (key)\n * and layer (value)\n * @private\n * @type {Object<string, import(\"../layer/Layer.js\").default>}\n */\n this.featureLayerAssociation_ = {};\n }\n\n /**\n * @param {import(\"../Feature.js\").FeatureLike} feature Feature.\n * @param {import(\"../layer/Layer.js\").default} layer Layer.\n * @private\n */\n addFeatureLayerAssociation_(feature, layer) {\n this.featureLayerAssociation_[getUid(feature)] = layer;\n }\n\n /**\n * Get the selected features.\n * @return {import(\"../Collection.js\").default<import(\"../Feature.js\").default>} Features collection.\n * @api\n */\n getFeatures() {\n return this.features_;\n }\n\n /**\n * Returns the Hit-detection tolerance.\n * @returns {number} Hit tolerance in pixels.\n * @api\n */\n getHitTolerance() {\n return this.hitTolerance_;\n }\n\n /**\n * Returns the associated {@link module:ol/layer/Vector~Vector vectorlayer} of\n * the (last) selected feature. Note that this will not work with any\n * programmatic method like pushing features to\n * {@link module:ol/interaction/Select~Select#getFeatures collection}.\n * @param {import(\"../Feature.js\").FeatureLike} feature Feature\n * @return {import('../layer/Vector.js').default} Layer.\n * @api\n */\n getLayer(feature) {\n return /** @type {import('../layer/Vector.js').default} */ (this\n .featureLayerAssociation_[getUid(feature)]);\n }\n\n /**\n * Hit-detection tolerance. Pixels inside the radius around the given position\n * will be checked for features.\n * @param {number} hitTolerance Hit tolerance in pixels.\n * @api\n */\n setHitTolerance(hitTolerance) {\n this.hitTolerance_ = hitTolerance;\n }\n\n /**\n * Remove the interaction from its current map, if any, and attach it to a new\n * map, if any. Pass `null` to just remove the interaction from the current map.\n * @param {import(\"../PluggableMap.js\").default} map Map.\n * @api\n */\n setMap(map) {\n const currentMap = this.getMap();\n if (currentMap && this.style_) {\n this.features_.forEach(this.restorePreviousStyle_.bind(this));\n }\n super.setMap(map);\n if (map) {\n this.features_.addEventListener(\n CollectionEventType.ADD,\n this.boundAddFeature_\n );\n this.features_.addEventListener(\n CollectionEventType.REMOVE,\n this.boundRemoveFeature_\n );\n\n if (this.style_) {\n this.features_.forEach(this.applySelectedStyle_.bind(this));\n }\n } else {\n this.features_.removeEventListener(\n CollectionEventType.ADD,\n this.boundAddFeature_\n );\n this.features_.removeEventListener(\n CollectionEventType.REMOVE,\n this.boundRemoveFeature_\n );\n }\n }\n\n /**\n * @param {import(\"../Collection.js\").CollectionEvent} evt Event.\n * @private\n */\n addFeature_(evt) {\n const feature = evt.element;\n if (this.style_) {\n this.applySelectedStyle_(feature);\n }\n }\n\n /**\n * @param {import(\"../Collection.js\").CollectionEvent} evt Event.\n * @private\n */\n removeFeature_(evt) {\n const feature = evt.element;\n if (this.style_) {\n this.restorePreviousStyle_(feature);\n }\n }\n\n /**\n * @return {import(\"../style/Style.js\").StyleLike|null} Select style.\n */\n getStyle() {\n return this.style_;\n }\n\n /**\n * @param {import(\"../Feature.js\").default} feature Feature\n * @private\n */\n applySelectedStyle_(feature) {\n const key = getUid(feature);\n if (!(key in originalFeatureStyles)) {\n originalFeatureStyles[key] = feature.getStyle();\n }\n feature.setStyle(this.style_);\n }\n\n /**\n * @param {import(\"../Feature.js\").default} feature Feature\n * @private\n */\n restorePreviousStyle_(feature) {\n const key = getUid(feature);\n const selectInteractions = /** @type {Array<Select>} */ (this.getMap()\n .getInteractions()\n .getArray()\n .filter(function (interaction) {\n return (\n interaction instanceof Select &&\n interaction.getStyle() &&\n interaction.getFeatures().getArray().indexOf(feature) !== -1\n );\n }));\n if (selectInteractions.length > 0) {\n feature.setStyle(\n selectInteractions[selectInteractions.length - 1].getStyle()\n );\n } else {\n feature.setStyle(originalFeatureStyles[key]);\n delete originalFeatureStyles[key];\n }\n }\n\n /**\n * @param {import(\"../Feature.js\").FeatureLike} feature Feature.\n * @private\n */\n removeFeatureLayerAssociation_(feature) {\n delete this.featureLayerAssociation_[getUid(feature)];\n }\n\n /**\n * Handles the {@link module:ol/MapBrowserEvent map browser event} and may change the\n * selected state of features.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} `false` to stop event propagation.\n * @this {Select}\n */\n handleEvent(mapBrowserEvent) {\n if (!this.condition_(mapBrowserEvent)) {\n return true;\n }\n const add = this.addCondition_(mapBrowserEvent);\n const remove = this.removeCondition_(mapBrowserEvent);\n const toggle = this.toggleCondition_(mapBrowserEvent);\n const set = !add && !remove && !toggle;\n const map = mapBrowserEvent.map;\n const features = this.getFeatures();\n const deselected = [];\n const selected = [];\n if (set) {\n // Replace the currently selected feature(s) with the feature(s) at the\n // pixel, or clear the selected feature(s) if there is no feature at\n // the pixel.\n clear(this.featureLayerAssociation_);\n map.forEachFeatureAtPixel(\n mapBrowserEvent.pixel,\n /**\n * @param {import(\"../Feature.js\").FeatureLike} feature Feature.\n * @param {import(\"../layer/Layer.js\").default} layer Layer.\n * @return {boolean|undefined} Continue to iterate over the features.\n */\n function (feature, layer) {\n if (this.filter_(feature, layer)) {\n selected.push(feature);\n this.addFeatureLayerAssociation_(feature, layer);\n return !this.multi_;\n }\n }.bind(this),\n {\n layerFilter: this.layerFilter_,\n hitTolerance: this.hitTolerance_,\n }\n );\n for (let i = features.getLength() - 1; i >= 0; --i) {\n const feature = features.item(i);\n const index = selected.indexOf(feature);\n if (index > -1) {\n // feature is already selected\n selected.splice(index, 1);\n } else {\n features.remove(feature);\n deselected.push(feature);\n }\n }\n if (selected.length !== 0) {\n features.extend(selected);\n }\n } else {\n // Modify the currently selected feature(s).\n map.forEachFeatureAtPixel(\n mapBrowserEvent.pixel,\n /**\n * @param {import(\"../Feature.js\").FeatureLike} feature Feature.\n * @param {import(\"../layer/Layer.js\").default} layer Layer.\n * @return {boolean|undefined} Continue to iterate over the features.\n */\n function (feature, layer) {\n if (this.filter_(feature, layer)) {\n if ((add || toggle) && !includes(features.getArray(), feature)) {\n selected.push(feature);\n this.addFeatureLayerAssociation_(feature, layer);\n } else if (\n (remove || toggle) &&\n includes(features.getArray(), feature)\n ) {\n deselected.push(feature);\n this.removeFeatureLayerAssociation_(feature);\n }\n return !this.multi_;\n }\n }.bind(this),\n {\n layerFilter: this.layerFilter_,\n hitTolerance: this.hitTolerance_,\n }\n );\n for (let j = deselected.length - 1; j >= 0; --j) {\n features.remove(deselected[j]);\n }\n features.extend(selected);\n }\n if (selected.length > 0 || deselected.length > 0) {\n this.dispatchEvent(\n new SelectEvent(\n SelectEventType.SELECT,\n selected,\n deselected,\n mapBrowserEvent\n )\n );\n }\n return true;\n }\n}\n\n/**\n * @return {import(\"../style/Style.js\").StyleFunction} Styles.\n */\nfunction getDefaultStyleFunction() {\n const styles = createEditingStyle();\n extend(styles[GeometryType.POLYGON], styles[GeometryType.LINE_STRING]);\n extend(\n styles[GeometryType.GEOMETRY_COLLECTION],\n styles[GeometryType.LINE_STRING]\n );\n\n return function (feature) {\n if (!feature.getGeometry()) {\n return null;\n }\n return styles[feature.getGeometry().getType()];\n };\n}\n\nexport default Select;\n","/**\n * @module ol/interaction/Snap\n */\nimport CollectionEventType from '../CollectionEventType.js';\nimport EventType from '../events/EventType.js';\nimport GeometryType from '../geom/GeometryType.js';\nimport PointerInteraction from './Pointer.js';\nimport RBush from '../structs/RBush.js';\nimport VectorEventType from '../source/VectorEventType.js';\nimport {FALSE, TRUE} from '../functions.js';\nimport {boundingExtent, createEmpty} from '../extent.js';\nimport {\n closestOnCircle,\n closestOnSegment,\n distance as coordinateDistance,\n squaredDistance as squaredCoordinateDistance,\n squaredDistanceToSegment,\n} from '../coordinate.js';\nimport {fromCircle} from '../geom/Polygon.js';\nimport {\n fromUserCoordinate,\n getUserProjection,\n toUserCoordinate,\n} from '../proj.js';\nimport {getUid} from '../util.js';\nimport {getValues} from '../obj.js';\nimport {listen, unlistenByKey} from '../events.js';\n\n/**\n * @typedef {Object} Result\n * @property {boolean} snapped\n * @property {import(\"../coordinate.js\").Coordinate|null} vertex\n * @property {import(\"../pixel.js\").Pixel|null} vertexPixel\n */\n\n/**\n * @typedef {Object} SegmentData\n * @property {import(\"../Feature.js\").default} feature\n * @property {Array<import(\"../coordinate.js\").Coordinate>} segment\n */\n\n/**\n * @typedef {Object} Options\n * @property {import(\"../Collection.js\").default<import(\"../Feature.js\").default>} [features] Snap to these features. Either this option or source should be provided.\n * @property {boolean} [edge=true] Snap to edges.\n * @property {boolean} [vertex=true] Snap to vertices.\n * @property {number} [pixelTolerance=10] Pixel tolerance for considering the pointer close enough to a segment or\n * vertex for snapping.\n * @property {import(\"../source/Vector.js\").default} [source] Snap to features from this source. Either this option or features should be provided\n */\n\n/**\n * @param {import(\"../source/Vector.js\").VectorSourceEvent|import(\"../Collection.js\").CollectionEvent} evt Event.\n * @return {import(\"../Feature.js\").default} Feature.\n */\nfunction getFeatureFromEvent(evt) {\n if (\n /** @type {import(\"../source/Vector.js\").VectorSourceEvent} */ (evt).feature\n ) {\n return /** @type {import(\"../source/Vector.js\").VectorSourceEvent} */ (evt)\n .feature;\n } else if (\n /** @type {import(\"../Collection.js\").CollectionEvent} */ (evt).element\n ) {\n return /** @type {import(\"../Feature.js\").default} */ (\n /** @type {import(\"../Collection.js\").CollectionEvent} */ (evt).element\n );\n }\n}\n\nconst tempSegment = [];\n\n/**\n * @classdesc\n * Handles snapping of vector features while modifying or drawing them. The\n * features can come from a {@link module:ol/source/Vector} or {@link module:ol/Collection~Collection}\n * Any interaction object that allows the user to interact\n * with the features using the mouse can benefit from the snapping, as long\n * as it is added before.\n *\n * The snap interaction modifies map browser event `coordinate` and `pixel`\n * properties to force the snap to occur to any interaction that them.\n *\n * Example:\n *\n * import Snap from 'ol/interaction/Snap';\n *\n * const snap = new Snap({\n * source: source\n * });\n *\n * map.addInteraction(snap);\n *\n * @api\n */\nclass Snap extends PointerInteraction {\n /**\n * @param {Options=} opt_options Options.\n */\n constructor(opt_options) {\n const options = opt_options ? opt_options : {};\n\n const pointerOptions = /** @type {import(\"./Pointer.js\").Options} */ (options);\n\n if (!pointerOptions.handleDownEvent) {\n pointerOptions.handleDownEvent = TRUE;\n }\n\n if (!pointerOptions.stopDown) {\n pointerOptions.stopDown = FALSE;\n }\n\n super(pointerOptions);\n\n /**\n * @type {import(\"../source/Vector.js\").default}\n * @private\n */\n this.source_ = options.source ? options.source : null;\n\n /**\n * @private\n * @type {boolean}\n */\n this.vertex_ = options.vertex !== undefined ? options.vertex : true;\n\n /**\n * @private\n * @type {boolean}\n */\n this.edge_ = options.edge !== undefined ? options.edge : true;\n\n /**\n * @type {import(\"../Collection.js\").default<import(\"../Feature.js\").default>}\n * @private\n */\n this.features_ = options.features ? options.features : null;\n\n /**\n * @type {Array<import(\"../events.js\").EventsKey>}\n * @private\n */\n this.featuresListenerKeys_ = [];\n\n /**\n * @type {Object<string, import(\"../events.js\").EventsKey>}\n * @private\n */\n this.featureChangeListenerKeys_ = {};\n\n /**\n * Extents are preserved so indexed segment can be quickly removed\n * when its feature geometry changes\n * @type {Object<string, import(\"../extent.js\").Extent>}\n * @private\n */\n this.indexedFeaturesExtents_ = {};\n\n /**\n * If a feature geometry changes while a pointer drag|move event occurs, the\n * feature doesn't get updated right away. It will be at the next 'pointerup'\n * event fired.\n * @type {!Object<string, import(\"../Feature.js\").default>}\n * @private\n */\n this.pendingFeatures_ = {};\n\n /**\n * @type {number}\n * @private\n */\n this.pixelTolerance_ =\n options.pixelTolerance !== undefined ? options.pixelTolerance : 10;\n\n /**\n * Segment RTree for each layer\n * @type {import(\"../structs/RBush.js\").default<SegmentData>}\n * @private\n */\n this.rBush_ = new RBush();\n\n /**\n * @const\n * @private\n * @type {Object<string, function(import(\"../Feature.js\").default, import(\"../geom/Geometry.js\").default): void>}\n */\n this.SEGMENT_WRITERS_ = {\n 'Point': this.writePointGeometry_.bind(this),\n 'LineString': this.writeLineStringGeometry_.bind(this),\n 'LinearRing': this.writeLineStringGeometry_.bind(this),\n 'Polygon': this.writePolygonGeometry_.bind(this),\n 'MultiPoint': this.writeMultiPointGeometry_.bind(this),\n 'MultiLineString': this.writeMultiLineStringGeometry_.bind(this),\n 'MultiPolygon': this.writeMultiPolygonGeometry_.bind(this),\n 'GeometryCollection': this.writeGeometryCollectionGeometry_.bind(this),\n 'Circle': this.writeCircleGeometry_.bind(this),\n };\n }\n\n /**\n * Add a feature to the collection of features that we may snap to.\n * @param {import(\"../Feature.js\").default} feature Feature.\n * @param {boolean=} opt_listen Whether to listen to the feature change or not\n * Defaults to `true`.\n * @api\n */\n addFeature(feature, opt_listen) {\n const register = opt_listen !== undefined ? opt_listen : true;\n const feature_uid = getUid(feature);\n const geometry = feature.getGeometry();\n if (geometry) {\n const segmentWriter = this.SEGMENT_WRITERS_[geometry.getType()];\n if (segmentWriter) {\n this.indexedFeaturesExtents_[feature_uid] = geometry.getExtent(\n createEmpty()\n );\n segmentWriter(feature, geometry);\n }\n }\n\n if (register) {\n this.featureChangeListenerKeys_[feature_uid] = listen(\n feature,\n EventType.CHANGE,\n this.handleFeatureChange_,\n this\n );\n }\n }\n\n /**\n * @param {import(\"../Feature.js\").default} feature Feature.\n * @private\n */\n forEachFeatureAdd_(feature) {\n this.addFeature(feature);\n }\n\n /**\n * @param {import(\"../Feature.js\").default} feature Feature.\n * @private\n */\n forEachFeatureRemove_(feature) {\n this.removeFeature(feature);\n }\n\n /**\n * @return {import(\"../Collection.js\").default<import(\"../Feature.js\").default>|Array<import(\"../Feature.js\").default>} Features.\n * @private\n */\n getFeatures_() {\n let features;\n if (this.features_) {\n features = this.features_;\n } else if (this.source_) {\n features = this.source_.getFeatures();\n }\n return features;\n }\n\n /**\n * @param {import(\"../MapBrowserEvent.js\").default} evt Map browser event.\n * @return {boolean} `false` to stop event propagation.\n */\n handleEvent(evt) {\n const result = this.snapTo(evt.pixel, evt.coordinate, evt.map);\n if (result.snapped) {\n evt.coordinate = result.vertex.slice(0, 2);\n evt.pixel = result.vertexPixel;\n }\n return super.handleEvent(evt);\n }\n\n /**\n * @param {import(\"../source/Vector.js\").VectorSourceEvent|import(\"../Collection.js\").CollectionEvent} evt Event.\n * @private\n */\n handleFeatureAdd_(evt) {\n const feature = getFeatureFromEvent(evt);\n this.addFeature(feature);\n }\n\n /**\n * @param {import(\"../source/Vector.js\").VectorSourceEvent|import(\"../Collection.js\").CollectionEvent} evt Event.\n * @private\n */\n handleFeatureRemove_(evt) {\n const feature = getFeatureFromEvent(evt);\n this.removeFeature(feature);\n }\n\n /**\n * @param {import(\"../events/Event.js\").default} evt Event.\n * @private\n */\n handleFeatureChange_(evt) {\n const feature = /** @type {import(\"../Feature.js\").default} */ (evt.target);\n if (this.handlingDownUpSequence) {\n const uid = getUid(feature);\n if (!(uid in this.pendingFeatures_)) {\n this.pendingFeatures_[uid] = feature;\n }\n } else {\n this.updateFeature_(feature);\n }\n }\n\n /**\n * Handle pointer up events.\n * @param {import(\"../MapBrowserEvent.js\").default} evt Event.\n * @return {boolean} If the event was consumed.\n */\n handleUpEvent(evt) {\n const featuresToUpdate = getValues(this.pendingFeatures_);\n if (featuresToUpdate.length) {\n featuresToUpdate.forEach(this.updateFeature_.bind(this));\n this.pendingFeatures_ = {};\n }\n return false;\n }\n\n /**\n * Remove a feature from the collection of features that we may snap to.\n * @param {import(\"../Feature.js\").default} feature Feature\n * @param {boolean=} opt_unlisten Whether to unlisten to the feature change\n * or not. Defaults to `true`.\n * @api\n */\n removeFeature(feature, opt_unlisten) {\n const unregister = opt_unlisten !== undefined ? opt_unlisten : true;\n const feature_uid = getUid(feature);\n const extent = this.indexedFeaturesExtents_[feature_uid];\n if (extent) {\n const rBush = this.rBush_;\n const nodesToRemove = [];\n rBush.forEachInExtent(extent, function (node) {\n if (feature === node.feature) {\n nodesToRemove.push(node);\n }\n });\n for (let i = nodesToRemove.length - 1; i >= 0; --i) {\n rBush.remove(nodesToRemove[i]);\n }\n }\n\n if (unregister) {\n unlistenByKey(this.featureChangeListenerKeys_[feature_uid]);\n delete this.featureChangeListenerKeys_[feature_uid];\n }\n }\n\n /**\n * Remove the interaction from its current map and attach it to the new map.\n * Subclasses may set up event handlers to get notified about changes to\n * the map here.\n * @param {import(\"../PluggableMap.js\").default} map Map.\n */\n setMap(map) {\n const currentMap = this.getMap();\n const keys = this.featuresListenerKeys_;\n const features = /** @type {Array<import(\"../Feature.js\").default>} */ (this.getFeatures_());\n\n if (currentMap) {\n keys.forEach(unlistenByKey);\n keys.length = 0;\n features.forEach(this.forEachFeatureRemove_.bind(this));\n }\n super.setMap(map);\n\n if (map) {\n if (this.features_) {\n keys.push(\n listen(\n this.features_,\n CollectionEventType.ADD,\n this.handleFeatureAdd_,\n this\n ),\n listen(\n this.features_,\n CollectionEventType.REMOVE,\n this.handleFeatureRemove_,\n this\n )\n );\n } else if (this.source_) {\n keys.push(\n listen(\n this.source_,\n VectorEventType.ADDFEATURE,\n this.handleFeatureAdd_,\n this\n ),\n listen(\n this.source_,\n VectorEventType.REMOVEFEATURE,\n this.handleFeatureRemove_,\n this\n )\n );\n }\n features.forEach(this.forEachFeatureAdd_.bind(this));\n }\n }\n\n /**\n * @param {import(\"../pixel.js\").Pixel} pixel Pixel\n * @param {import(\"../coordinate.js\").Coordinate} pixelCoordinate Coordinate\n * @param {import(\"../PluggableMap.js\").default} map Map.\n * @return {Result} Snap result\n */\n snapTo(pixel, pixelCoordinate, map) {\n const lowerLeft = map.getCoordinateFromPixel([\n pixel[0] - this.pixelTolerance_,\n pixel[1] + this.pixelTolerance_,\n ]);\n const upperRight = map.getCoordinateFromPixel([\n pixel[0] + this.pixelTolerance_,\n pixel[1] - this.pixelTolerance_,\n ]);\n const box = boundingExtent([lowerLeft, upperRight]);\n\n let segments = this.rBush_.getInExtent(box);\n\n // If snapping on vertices only, don't consider circles\n if (this.vertex_ && !this.edge_) {\n segments = segments.filter(function (segment) {\n return segment.feature.getGeometry().getType() !== GeometryType.CIRCLE;\n });\n }\n\n let snapped = false;\n let vertex = null;\n let vertexPixel = null;\n\n if (segments.length === 0) {\n return {\n snapped: snapped,\n vertex: vertex,\n vertexPixel: vertexPixel,\n };\n }\n\n const projection = map.getView().getProjection();\n const projectedCoordinate = fromUserCoordinate(pixelCoordinate, projection);\n\n let closestSegmentData;\n let minSquaredDistance = Infinity;\n for (let i = 0; i < segments.length; ++i) {\n const segmentData = segments[i];\n tempSegment[0] = fromUserCoordinate(segmentData.segment[0], projection);\n tempSegment[1] = fromUserCoordinate(segmentData.segment[1], projection);\n const delta = squaredDistanceToSegment(projectedCoordinate, tempSegment);\n if (delta < minSquaredDistance) {\n closestSegmentData = segmentData;\n minSquaredDistance = delta;\n }\n }\n const closestSegment = closestSegmentData.segment;\n\n if (this.vertex_ && !this.edge_) {\n const pixel1 = map.getPixelFromCoordinate(closestSegment[0]);\n const pixel2 = map.getPixelFromCoordinate(closestSegment[1]);\n const squaredDist1 = squaredCoordinateDistance(pixel, pixel1);\n const squaredDist2 = squaredCoordinateDistance(pixel, pixel2);\n const dist = Math.sqrt(Math.min(squaredDist1, squaredDist2));\n if (dist <= this.pixelTolerance_) {\n snapped = true;\n vertex =\n squaredDist1 > squaredDist2 ? closestSegment[1] : closestSegment[0];\n vertexPixel = map.getPixelFromCoordinate(vertex);\n }\n } else if (this.edge_) {\n const isCircle =\n closestSegmentData.feature.getGeometry().getType() ===\n GeometryType.CIRCLE;\n if (isCircle) {\n let circleGeometry = closestSegmentData.feature.getGeometry();\n const userProjection = getUserProjection();\n if (userProjection) {\n circleGeometry = circleGeometry\n .clone()\n .transform(userProjection, projection);\n }\n vertex = toUserCoordinate(\n closestOnCircle(\n projectedCoordinate,\n /** @type {import(\"../geom/Circle.js\").default} */ (circleGeometry)\n ),\n projection\n );\n } else {\n tempSegment[0] = fromUserCoordinate(closestSegment[0], projection);\n tempSegment[1] = fromUserCoordinate(closestSegment[1], projection);\n vertex = toUserCoordinate(\n closestOnSegment(projectedCoordinate, tempSegment),\n projection\n );\n }\n vertexPixel = map.getPixelFromCoordinate(vertex);\n\n if (coordinateDistance(pixel, vertexPixel) <= this.pixelTolerance_) {\n snapped = true;\n if (this.vertex_ && !isCircle) {\n const pixel1 = map.getPixelFromCoordinate(closestSegment[0]);\n const pixel2 = map.getPixelFromCoordinate(closestSegment[1]);\n const squaredDist1 = squaredCoordinateDistance(vertexPixel, pixel1);\n const squaredDist2 = squaredCoordinateDistance(vertexPixel, pixel2);\n const dist = Math.sqrt(Math.min(squaredDist1, squaredDist2));\n if (dist <= this.pixelTolerance_) {\n vertex =\n squaredDist1 > squaredDist2\n ? closestSegment[1]\n : closestSegment[0];\n vertexPixel = map.getPixelFromCoordinate(vertex);\n }\n }\n }\n }\n\n if (snapped) {\n vertexPixel = [Math.round(vertexPixel[0]), Math.round(vertexPixel[1])];\n }\n\n return {\n snapped: snapped,\n vertex: vertex,\n vertexPixel: vertexPixel,\n };\n }\n\n /**\n * @param {import(\"../Feature.js\").default} feature Feature\n * @private\n */\n updateFeature_(feature) {\n this.removeFeature(feature, false);\n this.addFeature(feature, false);\n }\n\n /**\n * @param {import(\"../Feature.js\").default} feature Feature\n * @param {import(\"../geom/Circle.js\").default} geometry Geometry.\n * @private\n */\n writeCircleGeometry_(feature, geometry) {\n const projection = this.getMap().getView().getProjection();\n let circleGeometry = geometry;\n const userProjection = getUserProjection();\n if (userProjection) {\n circleGeometry = /** @type {import(\"../geom/Circle.js\").default} */ (circleGeometry\n .clone()\n .transform(userProjection, projection));\n }\n const polygon = fromCircle(circleGeometry);\n if (userProjection) {\n polygon.transform(projection, userProjection);\n }\n const coordinates = polygon.getCoordinates()[0];\n for (let i = 0, ii = coordinates.length - 1; i < ii; ++i) {\n const segment = coordinates.slice(i, i + 2);\n const segmentData = {\n feature: feature,\n segment: segment,\n };\n this.rBush_.insert(boundingExtent(segment), segmentData);\n }\n }\n\n /**\n * @param {import(\"../Feature.js\").default} feature Feature\n * @param {import(\"../geom/GeometryCollection.js\").default} geometry Geometry.\n * @private\n */\n writeGeometryCollectionGeometry_(feature, geometry) {\n const geometries = geometry.getGeometriesArray();\n for (let i = 0; i < geometries.length; ++i) {\n const segmentWriter = this.SEGMENT_WRITERS_[geometries[i].getType()];\n if (segmentWriter) {\n segmentWriter(feature, geometries[i]);\n }\n }\n }\n\n /**\n * @param {import(\"../Feature.js\").default} feature Feature\n * @param {import(\"../geom/LineString.js\").default} geometry Geometry.\n * @private\n */\n writeLineStringGeometry_(feature, geometry) {\n const coordinates = geometry.getCoordinates();\n for (let i = 0, ii = coordinates.length - 1; i < ii; ++i) {\n const segment = coordinates.slice(i, i + 2);\n const segmentData = {\n feature: feature,\n segment: segment,\n };\n this.rBush_.insert(boundingExtent(segment), segmentData);\n }\n }\n\n /**\n * @param {import(\"../Feature.js\").default} feature Feature\n * @param {import(\"../geom/MultiLineString.js\").default} geometry Geometry.\n * @private\n */\n writeMultiLineStringGeometry_(feature, geometry) {\n const lines = geometry.getCoordinates();\n for (let j = 0, jj = lines.length; j < jj; ++j) {\n const coordinates = lines[j];\n for (let i = 0, ii = coordinates.length - 1; i < ii; ++i) {\n const segment = coordinates.slice(i, i + 2);\n const segmentData = {\n feature: feature,\n segment: segment,\n };\n this.rBush_.insert(boundingExtent(segment), segmentData);\n }\n }\n }\n\n /**\n * @param {import(\"../Feature.js\").default} feature Feature\n * @param {import(\"../geom/MultiPoint.js\").default} geometry Geometry.\n * @private\n */\n writeMultiPointGeometry_(feature, geometry) {\n const points = geometry.getCoordinates();\n for (let i = 0, ii = points.length; i < ii; ++i) {\n const coordinates = points[i];\n const segmentData = {\n feature: feature,\n segment: [coordinates, coordinates],\n };\n this.rBush_.insert(geometry.getExtent(), segmentData);\n }\n }\n\n /**\n * @param {import(\"../Feature.js\").default} feature Feature\n * @param {import(\"../geom/MultiPolygon.js\").default} geometry Geometry.\n * @private\n */\n writeMultiPolygonGeometry_(feature, geometry) {\n const polygons = geometry.getCoordinates();\n for (let k = 0, kk = polygons.length; k < kk; ++k) {\n const rings = polygons[k];\n for (let j = 0, jj = rings.length; j < jj; ++j) {\n const coordinates = rings[j];\n for (let i = 0, ii = coordinates.length - 1; i < ii; ++i) {\n const segment = coordinates.slice(i, i + 2);\n const segmentData = {\n feature: feature,\n segment: segment,\n };\n this.rBush_.insert(boundingExtent(segment), segmentData);\n }\n }\n }\n }\n\n /**\n * @param {import(\"../Feature.js\").default} feature Feature\n * @param {import(\"../geom/Point.js\").default} geometry Geometry.\n * @private\n */\n writePointGeometry_(feature, geometry) {\n const coordinates = geometry.getCoordinates();\n const segmentData = {\n feature: feature,\n segment: [coordinates, coordinates],\n };\n this.rBush_.insert(geometry.getExtent(), segmentData);\n }\n\n /**\n * @param {import(\"../Feature.js\").default} feature Feature\n * @param {import(\"../geom/Polygon.js\").default} geometry Geometry.\n * @private\n */\n writePolygonGeometry_(feature, geometry) {\n const rings = geometry.getCoordinates();\n for (let j = 0, jj = rings.length; j < jj; ++j) {\n const coordinates = rings[j];\n for (let i = 0, ii = coordinates.length - 1; i < ii; ++i) {\n const segment = coordinates.slice(i, i + 2);\n const segmentData = {\n feature: feature,\n segment: segment,\n };\n this.rBush_.insert(boundingExtent(segment), segmentData);\n }\n }\n }\n}\n\nexport default Snap;\n","/**\n * @module ol/interaction/Translate\n */\nimport Collection from '../Collection.js';\nimport Event from '../events/Event.js';\nimport InteractionProperty from './Property.js';\nimport PointerInteraction from './Pointer.js';\nimport {TRUE} from '../functions.js';\nimport {getChangeEventType} from '../Object.js';\nimport {includes} from '../array.js';\n\n/**\n * @enum {string}\n */\nconst TranslateEventType = {\n /**\n * Triggered upon feature translation start.\n * @event TranslateEvent#translatestart\n * @api\n */\n TRANSLATESTART: 'translatestart',\n /**\n * Triggered upon feature translation.\n * @event TranslateEvent#translating\n * @api\n */\n TRANSLATING: 'translating',\n /**\n * Triggered upon feature translation end.\n * @event TranslateEvent#translateend\n * @api\n */\n TRANSLATEEND: 'translateend',\n};\n\n/**\n * A function that takes an {@link module:ol/Feature} or\n * {@link module:ol/render/Feature} and an\n * {@link module:ol/layer/Layer} and returns `true` if the feature may be\n * translated or `false` otherwise.\n * @typedef {function(import(\"../Feature.js\").FeatureLike, import(\"../layer/Layer.js\").default):boolean} FilterFunction\n */\n\n/**\n * @typedef {Object} Options\n * @property {Collection<import(\"../Feature.js\").default>} [features] Only features contained in this collection will be able to be translated. If\n * not specified, all features on the map will be able to be translated.\n * @property {Array<import(\"../layer/Layer.js\").default>|function(import(\"../layer/Layer.js\").default): boolean} [layers] A list of layers from which features should be\n * translated. Alternatively, a filter function can be provided. The\n * function will be called for each layer in the map and should return\n * `true` for layers that you want to be translatable. If the option is\n * absent, all visible layers will be considered translatable.\n * @property {FilterFunction} [filter] A function\n * that takes an {@link module:ol/Feature} and an\n * {@link module:ol/layer/Layer} and returns `true` if the feature may be\n * translated or `false` otherwise.\n * @property {number} [hitTolerance=0] Hit-detection tolerance. Pixels inside the radius around the given position\n * will be checked for features.\n */\n\n/**\n * @classdesc\n * Events emitted by {@link module:ol/interaction/Translate~Translate} instances\n * are instances of this type.\n */\nexport class TranslateEvent extends Event {\n /**\n * @param {TranslateEventType} type Type.\n * @param {Collection<import(\"../Feature.js\").default>} features The features translated.\n * @param {import(\"../coordinate.js\").Coordinate} coordinate The event coordinate.\n * @param {import(\"../coordinate.js\").Coordinate} startCoordinate The original coordinates before.translation started\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n */\n constructor(type, features, coordinate, startCoordinate, mapBrowserEvent) {\n super(type);\n\n /**\n * The features being translated.\n * @type {Collection<import(\"../Feature.js\").default>}\n * @api\n */\n this.features = features;\n\n /**\n * The coordinate of the drag event.\n * @const\n * @type {import(\"../coordinate.js\").Coordinate}\n * @api\n */\n this.coordinate = coordinate;\n\n /**\n * The coordinate of the start position before translation started.\n * @const\n * @type {import(\"../coordinate.js\").Coordinate}\n * @api\n */\n this.startCoordinate = startCoordinate;\n\n /**\n * Associated {@link module:ol/MapBrowserEvent}.\n * @type {import(\"../MapBrowserEvent.js\").default}\n * @api\n */\n this.mapBrowserEvent = mapBrowserEvent;\n }\n}\n\n/**\n * @classdesc\n * Interaction for translating (moving) features.\n *\n * @fires TranslateEvent\n * @api\n */\nclass Translate extends PointerInteraction {\n /**\n * @param {Options=} opt_options Options.\n */\n constructor(opt_options) {\n const options = opt_options ? opt_options : {};\n\n super(/** @type {import(\"./Pointer.js\").Options} */ (options));\n\n /**\n * The last position we translated to.\n * @type {import(\"../coordinate.js\").Coordinate}\n * @private\n */\n this.lastCoordinate_ = null;\n\n /**\n * The start position before translation started.\n * @type {import(\"../coordinate.js\").Coordinate}\n * @private\n */\n this.startCoordinate_ = null;\n\n /**\n * @type {Collection<import(\"../Feature.js\").default>}\n * @private\n */\n this.features_ = options.features !== undefined ? options.features : null;\n\n /** @type {function(import(\"../layer/Layer.js\").default): boolean} */\n let layerFilter;\n if (options.layers) {\n if (typeof options.layers === 'function') {\n layerFilter = options.layers;\n } else {\n const layers = options.layers;\n layerFilter = function (layer) {\n return includes(layers, layer);\n };\n }\n } else {\n layerFilter = TRUE;\n }\n\n /**\n * @private\n * @type {function(import(\"../layer/Layer.js\").default): boolean}\n */\n this.layerFilter_ = layerFilter;\n\n /**\n * @private\n * @type {FilterFunction}\n */\n this.filter_ = options.filter ? options.filter : TRUE;\n\n /**\n * @private\n * @type {number}\n */\n this.hitTolerance_ = options.hitTolerance ? options.hitTolerance : 0;\n\n /**\n * @type {import(\"../Feature.js\").default}\n * @private\n */\n this.lastFeature_ = null;\n\n this.addEventListener(\n getChangeEventType(InteractionProperty.ACTIVE),\n this.handleActiveChanged_\n );\n }\n\n /**\n * Handle pointer down events.\n * @param {import(\"../MapBrowserEvent.js\").default} event Event.\n * @return {boolean} If the event was consumed.\n */\n handleDownEvent(event) {\n this.lastFeature_ = this.featuresAtPixel_(event.pixel, event.map);\n if (!this.lastCoordinate_ && this.lastFeature_) {\n this.startCoordinate_ = event.coordinate;\n this.lastCoordinate_ = event.coordinate;\n this.handleMoveEvent(event);\n\n const features = this.features_ || new Collection([this.lastFeature_]);\n\n this.dispatchEvent(\n new TranslateEvent(\n TranslateEventType.TRANSLATESTART,\n features,\n event.coordinate,\n this.startCoordinate_,\n event\n )\n );\n return true;\n }\n return false;\n }\n\n /**\n * Handle pointer up events.\n * @param {import(\"../MapBrowserEvent.js\").default} event Event.\n * @return {boolean} If the event was consumed.\n */\n handleUpEvent(event) {\n if (this.lastCoordinate_) {\n this.lastCoordinate_ = null;\n this.handleMoveEvent(event);\n\n const features = this.features_ || new Collection([this.lastFeature_]);\n\n this.dispatchEvent(\n new TranslateEvent(\n TranslateEventType.TRANSLATEEND,\n features,\n event.coordinate,\n this.startCoordinate_,\n event\n )\n );\n // cleanup\n this.startCoordinate_ = null;\n return true;\n }\n return false;\n }\n\n /**\n * Handle pointer drag events.\n * @param {import(\"../MapBrowserEvent.js\").default} event Event.\n */\n handleDragEvent(event) {\n if (this.lastCoordinate_) {\n const newCoordinate = event.coordinate;\n const deltaX = newCoordinate[0] - this.lastCoordinate_[0];\n const deltaY = newCoordinate[1] - this.lastCoordinate_[1];\n\n const features = this.features_ || new Collection([this.lastFeature_]);\n\n features.forEach(function (feature) {\n const geom = feature.getGeometry();\n geom.translate(deltaX, deltaY);\n feature.setGeometry(geom);\n });\n\n this.lastCoordinate_ = newCoordinate;\n\n this.dispatchEvent(\n new TranslateEvent(\n TranslateEventType.TRANSLATING,\n features,\n newCoordinate,\n this.startCoordinate_,\n event\n )\n );\n }\n }\n\n /**\n * Handle pointer move events.\n * @param {import(\"../MapBrowserEvent.js\").default} event Event.\n */\n handleMoveEvent(event) {\n const elem = event.map.getViewport();\n\n // Change the cursor to grab/grabbing if hovering any of the features managed\n // by the interaction\n if (this.featuresAtPixel_(event.pixel, event.map)) {\n elem.classList.remove(this.lastCoordinate_ ? 'ol-grab' : 'ol-grabbing');\n elem.classList.add(this.lastCoordinate_ ? 'ol-grabbing' : 'ol-grab');\n } else {\n elem.classList.remove('ol-grab', 'ol-grabbing');\n }\n }\n\n /**\n * Tests to see if the given coordinates intersects any of our selected\n * features.\n * @param {import(\"../pixel.js\").Pixel} pixel Pixel coordinate to test for intersection.\n * @param {import(\"../PluggableMap.js\").default} map Map to test the intersection on.\n * @return {import(\"../Feature.js\").default} Returns the feature found at the specified pixel\n * coordinates.\n * @private\n */\n featuresAtPixel_(pixel, map) {\n return map.forEachFeatureAtPixel(\n pixel,\n function (feature, layer) {\n if (this.filter_(feature, layer)) {\n if (!this.features_ || includes(this.features_.getArray(), feature)) {\n return feature;\n }\n }\n }.bind(this),\n {\n layerFilter: this.layerFilter_,\n hitTolerance: this.hitTolerance_,\n }\n );\n }\n\n /**\n * Returns the Hit-detection tolerance.\n * @returns {number} Hit tolerance in pixels.\n * @api\n */\n getHitTolerance() {\n return this.hitTolerance_;\n }\n\n /**\n * Hit-detection tolerance. Pixels inside the radius around the given position\n * will be checked for features.\n * @param {number} hitTolerance Hit tolerance in pixels.\n * @api\n */\n setHitTolerance(hitTolerance) {\n this.hitTolerance_ = hitTolerance;\n }\n\n /**\n * Remove the interaction from its current map and attach it to the new map.\n * Subclasses may set up event handlers to get notified about changes to\n * the map here.\n * @param {import(\"../PluggableMap.js\").default} map Map.\n */\n setMap(map) {\n const oldMap = this.getMap();\n super.setMap(map);\n this.updateState_(oldMap);\n }\n\n /**\n * @private\n */\n handleActiveChanged_() {\n this.updateState_(null);\n }\n\n /**\n * @param {import(\"../PluggableMap.js\").default} oldMap Old map.\n * @private\n */\n updateState_(oldMap) {\n let map = this.getMap();\n const active = this.getActive();\n if (!map || !active) {\n map = map || oldMap;\n if (map) {\n const elem = map.getViewport();\n elem.classList.remove('ol-grab', 'ol-grabbing');\n }\n }\n }\n}\n\nexport default Translate;\n","/**\n * @module ol/interaction\n */\nimport Collection from './Collection.js';\nimport DoubleClickZoom from './interaction/DoubleClickZoom.js';\nimport DragPan from './interaction/DragPan.js';\nimport DragRotate from './interaction/DragRotate.js';\nimport DragZoom from './interaction/DragZoom.js';\nimport KeyboardPan from './interaction/KeyboardPan.js';\nimport KeyboardZoom from './interaction/KeyboardZoom.js';\nimport Kinetic from './Kinetic.js';\nimport MouseWheelZoom from './interaction/MouseWheelZoom.js';\nimport PinchRotate from './interaction/PinchRotate.js';\nimport PinchZoom from './interaction/PinchZoom.js';\n\nexport {default as DoubleClickZoom} from './interaction/DoubleClickZoom.js';\nexport {default as DragAndDrop} from './interaction/DragAndDrop.js';\nexport {default as DragBox} from './interaction/DragBox.js';\nexport {default as DragPan} from './interaction/DragPan.js';\nexport {default as DragRotate} from './interaction/DragRotate.js';\nexport {default as DragRotateAndZoom} from './interaction/DragRotateAndZoom.js';\nexport {default as DragZoom} from './interaction/DragZoom.js';\nexport {default as Draw} from './interaction/Draw.js';\nexport {default as Extent} from './interaction/Extent.js';\nexport {default as Interaction} from './interaction/Interaction.js';\nexport {default as KeyboardPan} from './interaction/KeyboardPan.js';\nexport {default as KeyboardZoom} from './interaction/KeyboardZoom.js';\nexport {default as Modify} from './interaction/Modify.js';\nexport {default as MouseWheelZoom} from './interaction/MouseWheelZoom.js';\nexport {default as PinchRotate} from './interaction/PinchRotate.js';\nexport {default as PinchZoom} from './interaction/PinchZoom.js';\nexport {default as Pointer} from './interaction/Pointer.js';\nexport {default as Select} from './interaction/Select.js';\nexport {default as Snap} from './interaction/Snap.js';\nexport {default as Translate} from './interaction/Translate.js';\n\n/**\n * @typedef {Object} DefaultsOptions\n * @property {boolean} [altShiftDragRotate=true] Whether Alt-Shift-drag rotate is\n * desired.\n * @property {boolean} [onFocusOnly=false] Interact only when the map has the\n * focus. This affects the `MouseWheelZoom` and `DragPan` interactions and is\n * useful when page scroll is desired for maps that do not have the browser's\n * focus.\n * @property {boolean} [doubleClickZoom=true] Whether double click zoom is\n * desired.\n * @property {boolean} [keyboard=true] Whether keyboard interaction is desired.\n * @property {boolean} [mouseWheelZoom=true] Whether mousewheel zoom is desired.\n * @property {boolean} [shiftDragZoom=true] Whether Shift-drag zoom is desired.\n * @property {boolean} [dragPan=true] Whether drag pan is desired.\n * @property {boolean} [pinchRotate=true] Whether pinch rotate is desired.\n * @property {boolean} [pinchZoom=true] Whether pinch zoom is desired.\n * @property {number} [zoomDelta] Zoom level delta when using keyboard or double click zoom.\n * @property {number} [zoomDuration] Duration of the zoom animation in\n * milliseconds.\n */\n\n/**\n * Set of interactions included in maps by default. Specific interactions can be\n * excluded by setting the appropriate option to false in the constructor\n * options, but the order of the interactions is fixed. If you want to specify\n * a different order for interactions, you will need to create your own\n * {@link module:ol/interaction/Interaction} instances and insert\n * them into a {@link module:ol/Collection} in the order you want\n * before creating your {@link module:ol/Map~Map} instance. Changing the order can\n * be of interest if the event propagation needs to be stopped at a point.\n * The default set of interactions, in sequence, is:\n * * {@link module:ol/interaction/DragRotate~DragRotate}\n * * {@link module:ol/interaction/DoubleClickZoom~DoubleClickZoom}\n * * {@link module:ol/interaction/DragPan~DragPan}\n * * {@link module:ol/interaction/PinchRotate~PinchRotate}\n * * {@link module:ol/interaction/PinchZoom~PinchZoom}\n * * {@link module:ol/interaction/KeyboardPan~KeyboardPan}\n * * {@link module:ol/interaction/KeyboardZoom~KeyboardZoom}\n * * {@link module:ol/interaction/MouseWheelZoom~MouseWheelZoom}\n * * {@link module:ol/interaction/DragZoom~DragZoom}\n *\n * @param {DefaultsOptions=} opt_options Defaults options.\n * @return {import(\"./Collection.js\").default<import(\"./interaction/Interaction.js\").default>}\n * A collection of interactions to be used with the {@link module:ol/Map~Map}\n * constructor's `interactions` option.\n * @api\n */\nexport function defaults(opt_options) {\n const options = opt_options ? opt_options : {};\n\n const interactions = new Collection();\n\n const kinetic = new Kinetic(-0.005, 0.05, 100);\n\n const altShiftDragRotate =\n options.altShiftDragRotate !== undefined\n ? options.altShiftDragRotate\n : true;\n if (altShiftDragRotate) {\n interactions.push(new DragRotate());\n }\n\n const doubleClickZoom =\n options.doubleClickZoom !== undefined ? options.doubleClickZoom : true;\n if (doubleClickZoom) {\n interactions.push(\n new DoubleClickZoom({\n delta: options.zoomDelta,\n duration: options.zoomDuration,\n })\n );\n }\n\n const dragPan = options.dragPan !== undefined ? options.dragPan : true;\n if (dragPan) {\n interactions.push(\n new DragPan({\n onFocusOnly: options.onFocusOnly,\n kinetic: kinetic,\n })\n );\n }\n\n const pinchRotate =\n options.pinchRotate !== undefined ? options.pinchRotate : true;\n if (pinchRotate) {\n interactions.push(new PinchRotate());\n }\n\n const pinchZoom = options.pinchZoom !== undefined ? options.pinchZoom : true;\n if (pinchZoom) {\n interactions.push(\n new PinchZoom({\n duration: options.zoomDuration,\n })\n );\n }\n\n const keyboard = options.keyboard !== undefined ? options.keyboard : true;\n if (keyboard) {\n interactions.push(new KeyboardPan());\n interactions.push(\n new KeyboardZoom({\n delta: options.zoomDelta,\n duration: options.zoomDuration,\n })\n );\n }\n\n const mouseWheelZoom =\n options.mouseWheelZoom !== undefined ? options.mouseWheelZoom : true;\n if (mouseWheelZoom) {\n interactions.push(\n new MouseWheelZoom({\n onFocusOnly: options.onFocusOnly,\n duration: options.zoomDuration,\n })\n );\n }\n\n const shiftDragZoom =\n options.shiftDragZoom !== undefined ? options.shiftDragZoom : true;\n if (shiftDragZoom) {\n interactions.push(\n new DragZoom({\n duration: options.zoomDuration,\n })\n );\n }\n\n return interactions;\n}\n","/**\n * @module ol/Map\n */\nimport CompositeMapRenderer from './renderer/Composite.js';\nimport PluggableMap from './PluggableMap.js';\nimport {assign} from './obj.js';\nimport {defaults as defaultControls} from './control.js';\nimport {defaults as defaultInteractions} from './interaction.js';\n\n/**\n * @classdesc\n * The map is the core component of OpenLayers. For a map to render, a view,\n * one or more layers, and a target container are needed:\n *\n * import Map from 'ol/Map';\n * import View from 'ol/View';\n * import TileLayer from 'ol/layer/Tile';\n * import OSM from 'ol/source/OSM';\n *\n * var map = new Map({\n * view: new View({\n * center: [0, 0],\n * zoom: 1\n * }),\n * layers: [\n * new TileLayer({\n * source: new OSM()\n * })\n * ],\n * target: 'map'\n * });\n *\n * The above snippet creates a map using a {@link module:ol/layer/Tile} to\n * display {@link module:ol/source/OSM~OSM} OSM data and render it to a DOM\n * element with the id `map`.\n *\n * The constructor places a viewport container (with CSS class name\n * `ol-viewport`) in the target element (see `getViewport()`), and then two\n * further elements within the viewport: one with CSS class name\n * `ol-overlaycontainer-stopevent` for controls and some overlays, and one with\n * CSS class name `ol-overlaycontainer` for other overlays (see the `stopEvent`\n * option of {@link module:ol/Overlay~Overlay} for the difference). The map\n * itself is placed in a further element within the viewport.\n *\n * Layers are stored as a {@link module:ol/Collection~Collection} in\n * layerGroups. A top-level group is provided by the library. This is what is\n * accessed by `getLayerGroup` and `setLayerGroup`. Layers entered in the\n * options are added to this group, and `addLayer` and `removeLayer` change the\n * layer collection in the group. `getLayers` is a convenience function for\n * `getLayerGroup().getLayers()`. Note that {@link module:ol/layer/Group~Group}\n * is a subclass of {@link module:ol/layer/Base}, so layers entered in the\n * options or added with `addLayer` can be groups, which can contain further\n * groups, and so on.\n *\n * @api\n */\nclass Map extends PluggableMap {\n /**\n * @param {import(\"./PluggableMap.js\").MapOptions} options Map options.\n */\n constructor(options) {\n options = assign({}, options);\n if (!options.controls) {\n options.controls = defaultControls();\n }\n if (!options.interactions) {\n options.interactions = defaultInteractions({\n onFocusOnly: true,\n });\n }\n\n super(options);\n }\n\n createRenderer() {\n return new CompositeMapRenderer(this);\n }\n}\n\nexport default Map;\n","/**\n * @module ol/structs/LRUCache\n */\n\nimport {assert} from '../asserts.js';\n\n/**\n * @typedef {Object} Entry\n * @property {string} key_\n * @property {Object} newer\n * @property {Object} older\n * @property {*} value_\n */\n\n/**\n * @classdesc\n * Implements a Least-Recently-Used cache where the keys do not conflict with\n * Object's properties (e.g. 'hasOwnProperty' is not allowed as a key). Expiring\n * items from the cache is the responsibility of the user.\n *\n * @fires import(\"../events/Event.js\").default\n * @template T\n */\nclass LRUCache {\n /**\n * @param {number=} opt_highWaterMark High water mark.\n */\n constructor(opt_highWaterMark) {\n /**\n * Desired max cache size after expireCache(). If set to 0, no cache entries\n * will be pruned at all.\n * @type {number}\n */\n this.highWaterMark =\n opt_highWaterMark !== undefined ? opt_highWaterMark : 2048;\n\n /**\n * @private\n * @type {number}\n */\n this.count_ = 0;\n\n /**\n * @private\n * @type {!Object<string, Entry>}\n */\n this.entries_ = {};\n\n /**\n * @private\n * @type {?Entry}\n */\n this.oldest_ = null;\n\n /**\n * @private\n * @type {?Entry}\n */\n this.newest_ = null;\n }\n\n /**\n * @return {boolean} Can expire cache.\n */\n canExpireCache() {\n return this.highWaterMark > 0 && this.getCount() > this.highWaterMark;\n }\n\n /**\n * FIXME empty description for jsdoc\n */\n clear() {\n this.count_ = 0;\n this.entries_ = {};\n this.oldest_ = null;\n this.newest_ = null;\n }\n\n /**\n * @param {string} key Key.\n * @return {boolean} Contains key.\n */\n containsKey(key) {\n return this.entries_.hasOwnProperty(key);\n }\n\n /**\n * @param {function(T, string, LRUCache<T>): ?} f The function\n * to call for every entry from the oldest to the newer. This function takes\n * 3 arguments (the entry value, the entry key and the LRUCache object).\n * The return value is ignored.\n */\n forEach(f) {\n let entry = this.oldest_;\n while (entry) {\n f(entry.value_, entry.key_, this);\n entry = entry.newer;\n }\n }\n\n /**\n * @param {string} key Key.\n * @param {*=} opt_options Options (reserverd for subclasses).\n * @return {T} Value.\n */\n get(key, opt_options) {\n const entry = this.entries_[key];\n assert(entry !== undefined, 15); // Tried to get a value for a key that does not exist in the cache\n if (entry === this.newest_) {\n return entry.value_;\n } else if (entry === this.oldest_) {\n this.oldest_ = /** @type {Entry} */ (this.oldest_.newer);\n this.oldest_.older = null;\n } else {\n entry.newer.older = entry.older;\n entry.older.newer = entry.newer;\n }\n entry.newer = null;\n entry.older = this.newest_;\n this.newest_.newer = entry;\n this.newest_ = entry;\n return entry.value_;\n }\n\n /**\n * Remove an entry from the cache.\n * @param {string} key The entry key.\n * @return {T} The removed entry.\n */\n remove(key) {\n const entry = this.entries_[key];\n assert(entry !== undefined, 15); // Tried to get a value for a key that does not exist in the cache\n if (entry === this.newest_) {\n this.newest_ = /** @type {Entry} */ (entry.older);\n if (this.newest_) {\n this.newest_.newer = null;\n }\n } else if (entry === this.oldest_) {\n this.oldest_ = /** @type {Entry} */ (entry.newer);\n if (this.oldest_) {\n this.oldest_.older = null;\n }\n } else {\n entry.newer.older = entry.older;\n entry.older.newer = entry.newer;\n }\n delete this.entries_[key];\n --this.count_;\n return entry.value_;\n }\n\n /**\n * @return {number} Count.\n */\n getCount() {\n return this.count_;\n }\n\n /**\n * @return {Array<string>} Keys.\n */\n getKeys() {\n const keys = new Array(this.count_);\n let i = 0;\n let entry;\n for (entry = this.newest_; entry; entry = entry.older) {\n keys[i++] = entry.key_;\n }\n return keys;\n }\n\n /**\n * @return {Array<T>} Values.\n */\n getValues() {\n const values = new Array(this.count_);\n let i = 0;\n let entry;\n for (entry = this.newest_; entry; entry = entry.older) {\n values[i++] = entry.value_;\n }\n return values;\n }\n\n /**\n * @return {T} Last value.\n */\n peekLast() {\n return this.oldest_.value_;\n }\n\n /**\n * @return {string} Last key.\n */\n peekLastKey() {\n return this.oldest_.key_;\n }\n\n /**\n * Get the key of the newest item in the cache. Throws if the cache is empty.\n * @return {string} The newest key.\n */\n peekFirstKey() {\n return this.newest_.key_;\n }\n\n /**\n * @return {T} value Value.\n */\n pop() {\n const entry = this.oldest_;\n delete this.entries_[entry.key_];\n if (entry.newer) {\n entry.newer.older = null;\n }\n this.oldest_ = /** @type {Entry} */ (entry.newer);\n if (!this.oldest_) {\n this.newest_ = null;\n }\n --this.count_;\n return entry.value_;\n }\n\n /**\n * @param {string} key Key.\n * @param {T} value Value.\n */\n replace(key, value) {\n this.get(key); // update `newest_`\n this.entries_[key].value_ = value;\n }\n\n /**\n * @param {string} key Key.\n * @param {T} value Value.\n */\n set(key, value) {\n assert(!(key in this.entries_), 16); // Tried to set a value for a key that is used already\n const entry = {\n key_: key,\n newer: null,\n older: this.newest_,\n value_: value,\n };\n if (!this.newest_) {\n this.oldest_ = entry;\n } else {\n this.newest_.newer = entry;\n }\n this.newest_ = entry;\n this.entries_[key] = entry;\n ++this.count_;\n }\n\n /**\n * Set a maximum number of entries for the cache.\n * @param {number} size Cache size.\n * @api\n */\n setSize(size) {\n this.highWaterMark = size;\n }\n}\n\nexport default LRUCache;\n","/**\n * @module ol/tilecoord\n */\n\n/**\n * An array of three numbers representing the location of a tile in a tile\n * grid. The order is `z` (zoom level), `x` (column), and `y` (row).\n * @typedef {Array<number>} TileCoord\n * @api\n */\n\n/**\n * @param {number} z Z.\n * @param {number} x X.\n * @param {number} y Y.\n * @param {TileCoord=} opt_tileCoord Tile coordinate.\n * @return {TileCoord} Tile coordinate.\n */\nexport function createOrUpdate(z, x, y, opt_tileCoord) {\n if (opt_tileCoord !== undefined) {\n opt_tileCoord[0] = z;\n opt_tileCoord[1] = x;\n opt_tileCoord[2] = y;\n return opt_tileCoord;\n } else {\n return [z, x, y];\n }\n}\n\n/**\n * @param {number} z Z.\n * @param {number} x X.\n * @param {number} y Y.\n * @return {string} Key.\n */\nexport function getKeyZXY(z, x, y) {\n return z + '/' + x + '/' + y;\n}\n\n/**\n * Get the key for a tile coord.\n * @param {TileCoord} tileCoord The tile coord.\n * @return {string} Key.\n */\nexport function getKey(tileCoord) {\n return getKeyZXY(tileCoord[0], tileCoord[1], tileCoord[2]);\n}\n\n/**\n * Get a tile coord given a key.\n * @param {string} key The tile coord key.\n * @return {TileCoord} The tile coord.\n */\nexport function fromKey(key) {\n return key.split('/').map(Number);\n}\n\n/**\n * @param {TileCoord} tileCoord Tile coord.\n * @return {number} Hash.\n */\nexport function hash(tileCoord) {\n return (tileCoord[1] << tileCoord[0]) + tileCoord[2];\n}\n\n/**\n * @param {TileCoord} tileCoord Tile coordinate.\n * @param {!import(\"./tilegrid/TileGrid.js\").default} tileGrid Tile grid.\n * @return {boolean} Tile coordinate is within extent and zoom level range.\n */\nexport function withinExtentAndZ(tileCoord, tileGrid) {\n const z = tileCoord[0];\n const x = tileCoord[1];\n const y = tileCoord[2];\n\n if (tileGrid.getMinZoom() > z || z > tileGrid.getMaxZoom()) {\n return false;\n }\n const extent = tileGrid.getExtent();\n let tileRange;\n if (!extent) {\n tileRange = tileGrid.getFullTileRange(z);\n } else {\n tileRange = tileGrid.getTileRangeForExtentAndZ(extent, z);\n }\n if (!tileRange) {\n return true;\n } else {\n return tileRange.containsXY(x, y);\n }\n}\n","/**\n * @module ol/TileCache\n */\nimport LRUCache from './structs/LRUCache.js';\nimport {fromKey, getKey} from './tilecoord.js';\n\nclass TileCache extends LRUCache {\n /**\n * @param {!Object<string, boolean>} usedTiles Used tiles.\n */\n expireCache(usedTiles) {\n while (this.canExpireCache()) {\n const tile = this.peekLast();\n if (tile.getKey() in usedTiles) {\n break;\n } else {\n this.pop().release();\n }\n }\n }\n\n /**\n * Prune all tiles from the cache that don't have the same z as the newest tile.\n */\n pruneExceptNewestZ() {\n if (this.getCount() === 0) {\n return;\n }\n const key = this.peekFirstKey();\n const tileCoord = fromKey(key);\n const z = tileCoord[0];\n this.forEach(\n function (tile) {\n if (tile.tileCoord[0] !== z) {\n this.remove(getKey(tile.tileCoord));\n tile.release();\n }\n }.bind(this)\n );\n }\n}\n\nexport default TileCache;\n","/**\n * @module ol/TileRange\n */\n\n/**\n * A representation of a contiguous block of tiles. A tile range is specified\n * by its min/max tile coordinates and is inclusive of coordinates.\n */\nclass TileRange {\n /**\n * @param {number} minX Minimum X.\n * @param {number} maxX Maximum X.\n * @param {number} minY Minimum Y.\n * @param {number} maxY Maximum Y.\n */\n constructor(minX, maxX, minY, maxY) {\n /**\n * @type {number}\n */\n this.minX = minX;\n\n /**\n * @type {number}\n */\n this.maxX = maxX;\n\n /**\n * @type {number}\n */\n this.minY = minY;\n\n /**\n * @type {number}\n */\n this.maxY = maxY;\n }\n\n /**\n * @param {import(\"./tilecoord.js\").TileCoord} tileCoord Tile coordinate.\n * @return {boolean} Contains tile coordinate.\n */\n contains(tileCoord) {\n return this.containsXY(tileCoord[1], tileCoord[2]);\n }\n\n /**\n * @param {TileRange} tileRange Tile range.\n * @return {boolean} Contains.\n */\n containsTileRange(tileRange) {\n return (\n this.minX <= tileRange.minX &&\n tileRange.maxX <= this.maxX &&\n this.minY <= tileRange.minY &&\n tileRange.maxY <= this.maxY\n );\n }\n\n /**\n * @param {number} x Tile coordinate x.\n * @param {number} y Tile coordinate y.\n * @return {boolean} Contains coordinate.\n */\n containsXY(x, y) {\n return this.minX <= x && x <= this.maxX && this.minY <= y && y <= this.maxY;\n }\n\n /**\n * @param {TileRange} tileRange Tile range.\n * @return {boolean} Equals.\n */\n equals(tileRange) {\n return (\n this.minX == tileRange.minX &&\n this.minY == tileRange.minY &&\n this.maxX == tileRange.maxX &&\n this.maxY == tileRange.maxY\n );\n }\n\n /**\n * @param {TileRange} tileRange Tile range.\n */\n extend(tileRange) {\n if (tileRange.minX < this.minX) {\n this.minX = tileRange.minX;\n }\n if (tileRange.maxX > this.maxX) {\n this.maxX = tileRange.maxX;\n }\n if (tileRange.minY < this.minY) {\n this.minY = tileRange.minY;\n }\n if (tileRange.maxY > this.maxY) {\n this.maxY = tileRange.maxY;\n }\n }\n\n /**\n * @return {number} Height.\n */\n getHeight() {\n return this.maxY - this.minY + 1;\n }\n\n /**\n * @return {import(\"./size.js\").Size} Size.\n */\n getSize() {\n return [this.getWidth(), this.getHeight()];\n }\n\n /**\n * @return {number} Width.\n */\n getWidth() {\n return this.maxX - this.minX + 1;\n }\n\n /**\n * @param {TileRange} tileRange Tile range.\n * @return {boolean} Intersects.\n */\n intersects(tileRange) {\n return (\n this.minX <= tileRange.maxX &&\n this.maxX >= tileRange.minX &&\n this.minY <= tileRange.maxY &&\n this.maxY >= tileRange.minY\n );\n }\n}\n\n/**\n * @param {number} minX Minimum X.\n * @param {number} maxX Maximum X.\n * @param {number} minY Minimum Y.\n * @param {number} maxY Maximum Y.\n * @param {TileRange=} tileRange TileRange.\n * @return {TileRange} Tile range.\n */\nexport function createOrUpdate(minX, maxX, minY, maxY, tileRange) {\n if (tileRange !== undefined) {\n tileRange.minX = minX;\n tileRange.maxX = maxX;\n tileRange.minY = minY;\n tileRange.maxY = maxY;\n return tileRange;\n } else {\n return new TileRange(minX, maxX, minY, maxY);\n }\n}\n\nexport default TileRange;\n","/**\n * @module ol/VectorRenderTile\n */\nimport Tile from './Tile.js';\nimport {createCanvasContext2D} from './dom.js';\nimport {getUid} from './util.js';\n\n/**\n * @typedef {Object} ReplayState\n * @property {boolean} dirty\n * @property {null|import(\"./render.js\").OrderFunction} renderedRenderOrder\n * @property {number} renderedTileRevision\n * @property {number} renderedResolution\n * @property {number} renderedRevision\n * @property {number} renderedZ\n * @property {number} renderedTileResolution\n * @property {number} renderedTileZ\n */\n\n/**\n * @type {Array<HTMLCanvasElement>}\n */\nconst canvasPool = [];\n\nclass VectorRenderTile extends Tile {\n /**\n * @param {import(\"./tilecoord.js\").TileCoord} tileCoord Tile coordinate.\n * @param {import(\"./TileState.js\").default} state State.\n * @param {import(\"./tilecoord.js\").TileCoord} urlTileCoord Wrapped tile coordinate for source urls.\n * @param {function(VectorRenderTile):Array<import(\"./VectorTile\").default>} getSourceTiles Function\n * to get source tiles for this tile.\n */\n constructor(tileCoord, state, urlTileCoord, getSourceTiles) {\n super(tileCoord, state, {transition: 0});\n\n /**\n * @private\n * @type {!Object<string, CanvasRenderingContext2D>}\n */\n this.context_ = {};\n\n /**\n * Executor groups by layer uid. Entries are read/written by the renderer.\n * @type {Object<string, Array<import(\"./render/canvas/ExecutorGroup.js\").default>>}\n */\n this.executorGroups = {};\n\n /**\n * Number of loading source tiles. Read/written by the source.\n * @type {number}\n */\n this.loadingSourceTiles = 0;\n\n /**\n * Tile keys of error source tiles. Read/written by the source.\n * @type {Object<string, boolean>}\n */\n this.errorSourceTileKeys = {};\n\n /**\n * @type {Object<number, ImageData>}\n */\n this.hitDetectionImageData = {};\n\n /**\n * @private\n * @type {!Object<string, ReplayState>}\n */\n this.replayState_ = {};\n\n /**\n * @type {Array<import(\"./VectorTile.js\").default>}\n */\n this.sourceTiles = null;\n\n /**\n * @type {number}\n */\n this.wantedResolution;\n\n /**\n * @type {!function():Array<import(\"./VectorTile.js\").default>}\n */\n this.getSourceTiles = getSourceTiles.bind(undefined, this);\n\n /**\n * z of the source tiles of the last getSourceTiles call.\n * @type {number}\n */\n this.sourceZ = -1;\n\n /**\n * True when all tiles for this tile's nominal resolution are available.\n * @type {boolean}\n */\n this.hifi = false;\n\n /**\n * @type {import(\"./tilecoord.js\").TileCoord}\n */\n this.wrappedTileCoord = urlTileCoord;\n }\n\n /**\n * @param {import(\"./layer/Layer.js\").default} layer Layer.\n * @return {CanvasRenderingContext2D} The rendering context.\n */\n getContext(layer) {\n const key = getUid(layer);\n if (!(key in this.context_)) {\n this.context_[key] = createCanvasContext2D(1, 1, canvasPool);\n }\n return this.context_[key];\n }\n\n /**\n * @param {import(\"./layer/Layer.js\").default} layer Layer.\n * @return {boolean} Tile has a rendering context for the given layer.\n */\n hasContext(layer) {\n return getUid(layer) in this.context_;\n }\n\n /**\n * Get the Canvas for this tile.\n * @param {import(\"./layer/Layer.js\").default} layer Layer.\n * @return {HTMLCanvasElement} Canvas.\n */\n getImage(layer) {\n return this.hasContext(layer) ? this.getContext(layer).canvas : null;\n }\n\n /**\n * @param {import(\"./layer/Layer.js\").default} layer Layer.\n * @return {ReplayState} The replay state.\n */\n getReplayState(layer) {\n const key = getUid(layer);\n if (!(key in this.replayState_)) {\n this.replayState_[key] = {\n dirty: false,\n renderedRenderOrder: null,\n renderedResolution: NaN,\n renderedRevision: -1,\n renderedTileResolution: NaN,\n renderedTileRevision: -1,\n renderedZ: -1,\n renderedTileZ: -1,\n };\n }\n return this.replayState_[key];\n }\n\n /**\n * Load the tile.\n */\n load() {\n this.getSourceTiles();\n }\n\n /**\n * Remove from the cache due to expiry\n */\n release() {\n for (const key in this.context_) {\n canvasPool.push(this.context_[key].canvas);\n }\n super.release();\n }\n}\n\nexport default VectorRenderTile;\n","/**\n * @module ol/VectorTile\n */\nimport Tile from './Tile.js';\nimport TileState from './TileState.js';\n\nclass VectorTile extends Tile {\n /**\n * @param {import(\"./tilecoord.js\").TileCoord} tileCoord Tile coordinate.\n * @param {import(\"./TileState.js\").default} state State.\n * @param {string} src Data source url.\n * @param {import(\"./format/Feature.js\").default} format Feature format.\n * @param {import(\"./Tile.js\").LoadFunction} tileLoadFunction Tile load function.\n * @param {import(\"./Tile.js\").Options=} opt_options Tile options.\n */\n constructor(tileCoord, state, src, format, tileLoadFunction, opt_options) {\n super(tileCoord, state, opt_options);\n\n /**\n * Extent of this tile; set by the source.\n * @type {import(\"./extent.js\").Extent}\n */\n this.extent = null;\n\n /**\n * @private\n * @type {import(\"./format/Feature.js\").default}\n */\n this.format_ = format;\n\n /**\n * @private\n * @type {Array<import(\"./Feature.js\").default>}\n */\n this.features_ = null;\n\n /**\n * @private\n * @type {import(\"./featureloader.js\").FeatureLoader}\n */\n this.loader_;\n\n /**\n * Feature projection of this tile; set by the source.\n * @type {import(\"./proj/Projection.js\").default}\n */\n this.projection = null;\n\n /**\n * Resolution of this tile; set by the source.\n * @type {number}\n */\n this.resolution;\n\n /**\n * @private\n * @type {import(\"./Tile.js\").LoadFunction}\n */\n this.tileLoadFunction_ = tileLoadFunction;\n\n /**\n * @private\n * @type {string}\n */\n this.url_ = src;\n }\n\n /**\n * Get the feature format assigned for reading this tile's features.\n * @return {import(\"./format/Feature.js\").default} Feature format.\n * @api\n */\n getFormat() {\n return this.format_;\n }\n\n /**\n * Get the features for this tile. Geometries will be in the view projection.\n * @return {Array<import(\"./Feature.js\").FeatureLike>} Features.\n * @api\n */\n getFeatures() {\n return this.features_;\n }\n\n /**\n * @return {string} Key.\n */\n getKey() {\n return this.url_;\n }\n\n /**\n * Load not yet loaded URI.\n */\n load() {\n if (this.state == TileState.IDLE) {\n this.setState(TileState.LOADING);\n this.tileLoadFunction_(this, this.url_);\n if (this.loader_) {\n this.loader_(this.extent, this.resolution, this.projection);\n }\n }\n }\n\n /**\n * Handler for successful tile load.\n * @param {Array<import(\"./Feature.js\").default>} features The loaded features.\n * @param {import(\"./proj/Projection.js\").default} dataProjection Data projection.\n */\n onLoad(features, dataProjection) {\n this.setFeatures(features);\n }\n\n /**\n * Handler for tile load errors.\n */\n onError() {\n this.setState(TileState.ERROR);\n }\n\n /**\n * Function for use in an {@link module:ol/source/VectorTile~VectorTile}'s `tileLoadFunction`.\n * Sets the features for the tile.\n * @param {Array<import(\"./Feature.js\").default>} features Features.\n * @api\n */\n setFeatures(features) {\n this.features_ = features;\n this.setState(TileState.LOADED);\n }\n\n /**\n * Set the feature loader for reading this tile's features.\n * @param {import(\"./featureloader.js\").FeatureLoader} loader Feature loader.\n * @api\n */\n setLoader(loader) {\n this.loader_ = loader;\n }\n}\n\nexport default VectorTile;\n","/**\n * @module ol\n */\n\nexport {default as AssertionError} from './AssertionError.js';\nexport {default as Collection} from './Collection.js';\nexport {default as Disposable} from './Disposable.js';\nexport {default as Feature} from './Feature.js';\nexport {default as Geolocation} from './Geolocation.js';\nexport {default as Graticule} from './layer/Graticule.js';\nexport {default as Image} from './Image.js';\nexport {default as ImageBase} from './ImageBase.js';\nexport {default as ImageCanvas} from './ImageCanvas.js';\nexport {default as ImageTile} from './ImageTile.js';\nexport {default as Kinetic} from './Kinetic.js';\nexport {default as Map} from './Map.js';\nexport {default as MapBrowserEvent} from './MapBrowserEvent.js';\nexport {default as MapBrowserEventHandler} from './MapBrowserEventHandler.js';\nexport {default as MapEvent} from './MapEvent.js';\nexport {default as Object} from './Object.js';\nexport {default as Observable} from './Observable.js';\nexport {default as Overlay} from './Overlay.js';\nexport {default as PluggableMap} from './PluggableMap.js';\nexport {default as Tile} from './Tile.js';\nexport {default as TileCache} from './TileCache.js';\nexport {default as TileQueue} from './TileQueue.js';\nexport {default as TileRange} from './TileRange.js';\nexport {default as VectorRenderTile} from './VectorRenderTile.js';\nexport {default as VectorTile} from './VectorTile.js';\nexport {default as View} from './View.js';\n\nexport {getUid, VERSION} from './util.js';\n","/**\n * @module ol/layer/TileProperty\n */\n\n/**\n * @enum {string}\n */\nexport default {\n PRELOAD: 'preload',\n USE_INTERIM_TILES_ON_ERROR: 'useInterimTilesOnError',\n};\n","/**\n * @module ol/layer/BaseTile\n */\nimport Layer from './Layer.js';\nimport TileProperty from './TileProperty.js';\nimport {assign} from '../obj.js';\n\n/**\n * @typedef {Object} Options\n * @property {string} [className='ol-layer'] A CSS class name to set to the layer element.\n * @property {number} [opacity=1] Opacity (0, 1).\n * @property {boolean} [visible=true] Visibility.\n * @property {import(\"../extent.js\").Extent} [extent] The bounding extent for layer rendering. The layer will not be\n * rendered outside of this extent.\n * @property {number} [zIndex] The z-index for layer rendering. At rendering time, the layers\n * will be ordered, first by Z-index and then by position. When `undefined`, a `zIndex` of 0 is assumed\n * for layers that are added to the map's `layers` collection, or `Infinity` when the layer's `setMap()`\n * method was used.\n * @property {number} [minResolution] The minimum resolution (inclusive) at which this layer will be\n * visible.\n * @property {number} [maxResolution] The maximum resolution (exclusive) below which this layer will\n * be visible.\n * @property {number} [minZoom] The minimum view zoom level (exclusive) above which this layer will be\n * visible.\n * @property {number} [maxZoom] The maximum view zoom level (inclusive) at which this layer will\n * be visible.\n * @property {number} [preload=0] Preload. Load low-resolution tiles up to `preload` levels. `0`\n * means no preloading.\n * @property {import(\"../source/Tile.js\").default} [source] Source for this layer.\n * @property {import(\"../PluggableMap.js\").default} [map] Sets the layer as overlay on a map. The map will not manage\n * this layer in its layers collection, and the layer will be rendered on top. This is useful for\n * temporary layers. The standard way to add a layer to a map and have it managed by the map is to\n * use {@link module:ol/Map#addLayer}.\n * @property {boolean} [useInterimTilesOnError=true] Use interim tiles on error.\n */\n\n/**\n * @classdesc\n * For layer sources that provide pre-rendered, tiled images in grids that are\n * organized by zoom levels for specific resolutions.\n * Note that any property set in the options is set as a {@link module:ol/Object~BaseObject}\n * property on the layer object; for example, setting `title: 'My Title'` in the\n * options means that `title` is observable, and has get/set accessors.\n *\n * @extends {Layer<import(\"../source/Tile.js\").default>}\n * @api\n */\nclass BaseTileLayer extends Layer {\n /**\n * @param {Options=} opt_options Tile layer options.\n */\n constructor(opt_options) {\n const options = opt_options ? opt_options : {};\n\n const baseOptions = assign({}, options);\n\n delete baseOptions.preload;\n delete baseOptions.useInterimTilesOnError;\n super(baseOptions);\n\n this.setPreload(options.preload !== undefined ? options.preload : 0);\n this.setUseInterimTilesOnError(\n options.useInterimTilesOnError !== undefined\n ? options.useInterimTilesOnError\n : true\n );\n }\n\n /**\n * Return the level as number to which we will preload tiles up to.\n * @return {number} The level to preload tiles up to.\n * @observable\n * @api\n */\n getPreload() {\n return /** @type {number} */ (this.get(TileProperty.PRELOAD));\n }\n\n /**\n * Set the level as number to which we will preload tiles up to.\n * @param {number} preload The level to preload tiles up to.\n * @observable\n * @api\n */\n setPreload(preload) {\n this.set(TileProperty.PRELOAD, preload);\n }\n\n /**\n * Whether we use interim tiles on error.\n * @return {boolean} Use interim tiles on error.\n * @observable\n * @api\n */\n getUseInterimTilesOnError() {\n return /** @type {boolean} */ (this.get(\n TileProperty.USE_INTERIM_TILES_ON_ERROR\n ));\n }\n\n /**\n * Set whether we use interim tiles on error.\n * @param {boolean} useInterimTilesOnError Use interim tiles on error.\n * @observable\n * @api\n */\n setUseInterimTilesOnError(useInterimTilesOnError) {\n this.set(TileProperty.USE_INTERIM_TILES_ON_ERROR, useInterimTilesOnError);\n }\n}\n\nexport default BaseTileLayer;\n","/**\n * @module ol/renderer/canvas/TileLayer\n */\nimport CanvasLayerRenderer from './Layer.js';\nimport TileRange from '../../TileRange.js';\nimport TileState from '../../TileState.js';\nimport {\n apply as applyTransform,\n compose as composeTransform,\n makeInverse,\n} from '../../transform.js';\nimport {assign} from '../../obj.js';\nimport {\n createEmpty,\n equals,\n getIntersection,\n getTopLeft,\n} from '../../extent.js';\nimport {createTransformString} from '../../render/canvas.js';\nimport {fromUserExtent} from '../../proj.js';\nimport {getUid} from '../../util.js';\nimport {numberSafeCompareFunction} from '../../array.js';\n\n/**\n * @classdesc\n * Canvas renderer for tile layers.\n * @api\n */\nclass CanvasTileLayerRenderer extends CanvasLayerRenderer {\n /**\n * @param {import(\"../../layer/Tile.js\").default|import(\"../../layer/VectorTile.js\").default} tileLayer Tile layer.\n */\n constructor(tileLayer) {\n super(tileLayer);\n\n /**\n * Rendered extent has changed since the previous `renderFrame()` call\n * @type {boolean}\n */\n this.extentChanged = true;\n\n /**\n * @private\n * @type {?import(\"../../extent.js\").Extent}\n */\n this.renderedExtent_ = null;\n\n /**\n * @protected\n * @type {number}\n */\n this.renderedPixelRatio;\n\n /**\n * @protected\n * @type {import(\"../../proj/Projection.js\").default}\n */\n this.renderedProjection = null;\n\n /**\n * @protected\n * @type {number}\n */\n this.renderedRevision;\n\n /**\n * @protected\n * @type {!Array<import(\"../../Tile.js\").default>}\n */\n this.renderedTiles = [];\n\n /**\n * @private\n * @type {boolean}\n */\n this.newTiles_ = false;\n\n /**\n * @protected\n * @type {import(\"../../extent.js\").Extent}\n */\n this.tmpExtent = createEmpty();\n\n /**\n * @private\n * @type {import(\"../../TileRange.js\").default}\n */\n this.tmpTileRange_ = new TileRange(0, 0, 0, 0);\n }\n\n /**\n * @protected\n * @param {import(\"../../Tile.js\").default} tile Tile.\n * @return {boolean} Tile is drawable.\n */\n isDrawableTile(tile) {\n const tileLayer = this.getLayer();\n const tileState = tile.getState();\n const useInterimTilesOnError = tileLayer.getUseInterimTilesOnError();\n return (\n tileState == TileState.LOADED ||\n tileState == TileState.EMPTY ||\n (tileState == TileState.ERROR && !useInterimTilesOnError)\n );\n }\n\n /**\n * @param {number} z Tile coordinate z.\n * @param {number} x Tile coordinate x.\n * @param {number} y Tile coordinate y.\n * @param {import(\"../../PluggableMap.js\").FrameState} frameState Frame state.\n * @return {!import(\"../../Tile.js\").default} Tile.\n */\n getTile(z, x, y, frameState) {\n const pixelRatio = frameState.pixelRatio;\n const projection = frameState.viewState.projection;\n const tileLayer = this.getLayer();\n const tileSource = tileLayer.getSource();\n let tile = tileSource.getTile(z, x, y, pixelRatio, projection);\n if (tile.getState() == TileState.ERROR) {\n if (!tileLayer.getUseInterimTilesOnError()) {\n // When useInterimTilesOnError is false, we consider the error tile as loaded.\n tile.setState(TileState.LOADED);\n } else if (tileLayer.getPreload() > 0) {\n // Preloaded tiles for lower resolutions might have finished loading.\n this.newTiles_ = true;\n }\n }\n if (!this.isDrawableTile(tile)) {\n tile = tile.getInterimTile();\n }\n return tile;\n }\n\n /**\n * @param {Object<number, Object<string, import(\"../../Tile.js\").default>>} tiles Lookup of loaded tiles by zoom level.\n * @param {number} zoom Zoom level.\n * @param {import(\"../../Tile.js\").default} tile Tile.\n * @return {boolean|void} If `false`, the tile will not be considered loaded.\n */\n loadedTileCallback(tiles, zoom, tile) {\n if (this.isDrawableTile(tile)) {\n return super.loadedTileCallback(tiles, zoom, tile);\n }\n return false;\n }\n\n /**\n * Determine whether render should be called.\n * @param {import(\"../../PluggableMap.js\").FrameState} frameState Frame state.\n * @return {boolean} Layer is ready to be rendered.\n */\n prepareFrame(frameState) {\n return !!this.getLayer().getSource();\n }\n\n /**\n * Render the layer.\n * @param {import(\"../../PluggableMap.js\").FrameState} frameState Frame state.\n * @param {HTMLElement} target Target that may be used to render content to.\n * @return {HTMLElement} The rendered element.\n */\n renderFrame(frameState, target) {\n const layerState = frameState.layerStatesArray[frameState.layerIndex];\n const viewState = frameState.viewState;\n const projection = viewState.projection;\n const viewResolution = viewState.resolution;\n const viewCenter = viewState.center;\n const rotation = viewState.rotation;\n const pixelRatio = frameState.pixelRatio;\n\n const tileLayer = this.getLayer();\n const tileSource = tileLayer.getSource();\n const sourceRevision = tileSource.getRevision();\n const tileGrid = tileSource.getTileGridForProjection(projection);\n const z = tileGrid.getZForResolution(viewResolution, tileSource.zDirection);\n const tileResolution = tileGrid.getResolution(z);\n\n let extent = frameState.extent;\n const layerExtent =\n layerState.extent && fromUserExtent(layerState.extent, projection);\n if (layerExtent) {\n extent = getIntersection(\n extent,\n fromUserExtent(layerState.extent, projection)\n );\n }\n\n const tilePixelRatio = tileSource.getTilePixelRatio(pixelRatio);\n\n // desired dimensions of the canvas in pixels\n let width = Math.round(frameState.size[0] * tilePixelRatio);\n let height = Math.round(frameState.size[1] * tilePixelRatio);\n\n if (rotation) {\n const size = Math.round(Math.sqrt(width * width + height * height));\n width = size;\n height = size;\n }\n\n const dx = (tileResolution * width) / 2 / tilePixelRatio;\n const dy = (tileResolution * height) / 2 / tilePixelRatio;\n const canvasExtent = [\n viewCenter[0] - dx,\n viewCenter[1] - dy,\n viewCenter[0] + dx,\n viewCenter[1] + dy,\n ];\n\n const tileRange = tileGrid.getTileRangeForExtentAndZ(extent, z);\n\n /**\n * @type {Object<number, Object<string, import(\"../../Tile.js\").default>>}\n */\n const tilesToDrawByZ = {};\n tilesToDrawByZ[z] = {};\n\n const findLoadedTiles = this.createLoadedTileFinder(\n tileSource,\n projection,\n tilesToDrawByZ\n );\n\n const tmpExtent = this.tmpExtent;\n const tmpTileRange = this.tmpTileRange_;\n this.newTiles_ = false;\n for (let x = tileRange.minX; x <= tileRange.maxX; ++x) {\n for (let y = tileRange.minY; y <= tileRange.maxY; ++y) {\n const tile = this.getTile(z, x, y, frameState);\n if (this.isDrawableTile(tile)) {\n const uid = getUid(this);\n if (tile.getState() == TileState.LOADED) {\n tilesToDrawByZ[z][tile.tileCoord.toString()] = tile;\n const inTransition = tile.inTransition(uid);\n if (\n !this.newTiles_ &&\n (inTransition || this.renderedTiles.indexOf(tile) === -1)\n ) {\n this.newTiles_ = true;\n }\n }\n if (tile.getAlpha(uid, frameState.time) === 1) {\n // don't look for alt tiles if alpha is 1\n continue;\n }\n }\n\n const childTileRange = tileGrid.getTileCoordChildTileRange(\n tile.tileCoord,\n tmpTileRange,\n tmpExtent\n );\n\n let covered = false;\n if (childTileRange) {\n covered = findLoadedTiles(z + 1, childTileRange);\n }\n if (!covered) {\n tileGrid.forEachTileCoordParentTileRange(\n tile.tileCoord,\n findLoadedTiles,\n tmpTileRange,\n tmpExtent\n );\n }\n }\n }\n\n const canvasScale = tileResolution / viewResolution;\n\n // set forward and inverse pixel transforms\n composeTransform(\n this.pixelTransform,\n frameState.size[0] / 2,\n frameState.size[1] / 2,\n 1 / tilePixelRatio,\n 1 / tilePixelRatio,\n rotation,\n -width / 2,\n -height / 2\n );\n\n const canvasTransform = createTransformString(this.pixelTransform);\n\n this.useContainer(target, canvasTransform, layerState.opacity);\n const context = this.context;\n const canvas = context.canvas;\n\n makeInverse(this.inversePixelTransform, this.pixelTransform);\n\n // set scale transform for calculating tile positions on the canvas\n composeTransform(\n this.tempTransform,\n width / 2,\n height / 2,\n canvasScale,\n canvasScale,\n 0,\n -width / 2,\n -height / 2\n );\n\n if (canvas.width != width || canvas.height != height) {\n canvas.width = width;\n canvas.height = height;\n } else if (!this.containerReused) {\n context.clearRect(0, 0, width, height);\n }\n\n if (layerExtent) {\n this.clipUnrotated(context, frameState, layerExtent);\n }\n\n assign(context, tileSource.getContextOptions());\n this.preRender(context, frameState);\n\n this.renderedTiles.length = 0;\n /** @type {Array<number>} */\n let zs = Object.keys(tilesToDrawByZ).map(Number);\n zs.sort(numberSafeCompareFunction);\n\n let clips, clipZs, currentClip;\n if (\n layerState.opacity === 1 &&\n (!this.containerReused ||\n tileSource.getOpaque(frameState.viewState.projection))\n ) {\n zs = zs.reverse();\n } else {\n clips = [];\n clipZs = [];\n }\n for (let i = zs.length - 1; i >= 0; --i) {\n const currentZ = zs[i];\n const currentTilePixelSize = tileSource.getTilePixelSize(\n currentZ,\n pixelRatio,\n projection\n );\n const currentResolution = tileGrid.getResolution(currentZ);\n const currentScale = currentResolution / tileResolution;\n const dx = currentTilePixelSize[0] * currentScale * canvasScale;\n const dy = currentTilePixelSize[1] * currentScale * canvasScale;\n const originTileCoord = tileGrid.getTileCoordForCoordAndZ(\n getTopLeft(canvasExtent),\n currentZ\n );\n const originTileExtent = tileGrid.getTileCoordExtent(originTileCoord);\n const origin = applyTransform(this.tempTransform, [\n (tilePixelRatio * (originTileExtent[0] - canvasExtent[0])) /\n tileResolution,\n (tilePixelRatio * (canvasExtent[3] - originTileExtent[3])) /\n tileResolution,\n ]);\n const tileGutter =\n tilePixelRatio * tileSource.getGutterForProjection(projection);\n const tilesToDraw = tilesToDrawByZ[currentZ];\n for (const tileCoordKey in tilesToDraw) {\n const tile = /** @type {import(\"../../ImageTile.js\").default} */ (tilesToDraw[\n tileCoordKey\n ]);\n const tileCoord = tile.tileCoord;\n\n // Calculate integer positions and sizes so that tiles align\n const floatX = origin[0] - (originTileCoord[1] - tileCoord[1]) * dx;\n const nextX = Math.round(floatX + dx);\n const floatY = origin[1] - (originTileCoord[2] - tileCoord[2]) * dy;\n const nextY = Math.round(floatY + dy);\n const x = Math.round(floatX);\n const y = Math.round(floatY);\n const w = nextX - x;\n const h = nextY - y;\n const transition = z === currentZ;\n\n const inTransition =\n transition && tile.getAlpha(getUid(this), frameState.time) !== 1;\n if (!inTransition) {\n if (clips) {\n // Clip mask for regions in this tile that already filled by a higher z tile\n context.save();\n currentClip = [x, y, x + w, y, x + w, y + h, x, y + h];\n for (let i = 0, ii = clips.length; i < ii; ++i) {\n if (z !== currentZ && currentZ < clipZs[i]) {\n const clip = clips[i];\n context.beginPath();\n // counter-clockwise (outer ring) for current tile\n context.moveTo(currentClip[0], currentClip[1]);\n context.lineTo(currentClip[2], currentClip[3]);\n context.lineTo(currentClip[4], currentClip[5]);\n context.lineTo(currentClip[6], currentClip[7]);\n // clockwise (inner ring) for higher z tile\n context.moveTo(clip[6], clip[7]);\n context.lineTo(clip[4], clip[5]);\n context.lineTo(clip[2], clip[3]);\n context.lineTo(clip[0], clip[1]);\n context.clip();\n }\n }\n clips.push(currentClip);\n clipZs.push(currentZ);\n } else {\n context.clearRect(x, y, w, h);\n }\n }\n this.drawTileImage(\n tile,\n frameState,\n x,\n y,\n w,\n h,\n tileGutter,\n transition,\n layerState.opacity\n );\n if (clips && !inTransition) {\n context.restore();\n }\n this.renderedTiles.push(tile);\n this.updateUsedTiles(frameState.usedTiles, tileSource, tile);\n }\n }\n\n this.renderedRevision = sourceRevision;\n this.renderedResolution = tileResolution;\n this.extentChanged =\n !this.renderedExtent_ || !equals(this.renderedExtent_, canvasExtent);\n this.renderedExtent_ = canvasExtent;\n this.renderedPixelRatio = pixelRatio;\n this.renderedProjection = projection;\n\n this.manageTilePyramid(\n frameState,\n tileSource,\n tileGrid,\n pixelRatio,\n projection,\n extent,\n z,\n tileLayer.getPreload()\n );\n this.scheduleExpireCache(frameState, tileSource);\n\n this.postRender(context, frameState);\n\n if (layerState.extent) {\n context.restore();\n }\n\n if (canvasTransform !== canvas.style.transform) {\n canvas.style.transform = canvasTransform;\n }\n\n return this.container;\n }\n\n /**\n * @param {import(\"../../ImageTile.js\").default} tile Tile.\n * @param {import(\"../../PluggableMap.js\").FrameState} frameState Frame state.\n * @param {number} x Left of the tile.\n * @param {number} y Top of the tile.\n * @param {number} w Width of the tile.\n * @param {number} h Height of the tile.\n * @param {number} gutter Tile gutter.\n * @param {boolean} transition Apply an alpha transition.\n * @param {number} opacity Opacity.\n */\n drawTileImage(tile, frameState, x, y, w, h, gutter, transition, opacity) {\n const image = this.getTileImage(tile);\n if (!image) {\n return;\n }\n const uid = getUid(this);\n const tileAlpha = transition ? tile.getAlpha(uid, frameState.time) : 1;\n const alpha = opacity * tileAlpha;\n const alphaChanged = alpha !== this.context.globalAlpha;\n if (alphaChanged) {\n this.context.save();\n this.context.globalAlpha = alpha;\n }\n this.context.drawImage(\n image,\n gutter,\n gutter,\n image.width - 2 * gutter,\n image.height - 2 * gutter,\n x,\n y,\n w,\n h\n );\n\n if (alphaChanged) {\n this.context.restore();\n }\n if (tileAlpha !== 1) {\n frameState.animate = true;\n } else if (transition) {\n tile.endTransition(uid);\n }\n }\n\n /**\n * @return {HTMLCanvasElement} Image\n */\n getImage() {\n const context = this.context;\n return context ? context.canvas : null;\n }\n\n /**\n * Get the image from a tile.\n * @param {import(\"../../ImageTile.js\").default} tile Tile.\n * @return {HTMLCanvasElement|HTMLImageElement|HTMLVideoElement} Image.\n * @protected\n */\n getTileImage(tile) {\n return tile.getImage();\n }\n\n /**\n * @param {import(\"../../PluggableMap.js\").FrameState} frameState Frame state.\n * @param {import(\"../../source/Tile.js\").default} tileSource Tile source.\n * @protected\n */\n scheduleExpireCache(frameState, tileSource) {\n if (tileSource.canExpireCache()) {\n /**\n * @param {import(\"../../source/Tile.js\").default} tileSource Tile source.\n * @param {import(\"../../PluggableMap.js\").default} map Map.\n * @param {import(\"../../PluggableMap.js\").FrameState} frameState Frame state.\n */\n const postRenderFunction = function (tileSource, map, frameState) {\n const tileSourceKey = getUid(tileSource);\n if (tileSourceKey in frameState.usedTiles) {\n tileSource.expireCache(\n frameState.viewState.projection,\n frameState.usedTiles[tileSourceKey]\n );\n }\n }.bind(null, tileSource);\n\n frameState.postRenderFunctions.push(\n /** @type {import(\"../../PluggableMap.js\").PostRenderFunction} */ (postRenderFunction)\n );\n }\n }\n\n /**\n * @param {!Object<string, !Object<string, boolean>>} usedTiles Used tiles.\n * @param {import(\"../../source/Tile.js\").default} tileSource Tile source.\n * @param {import('../../Tile.js').default} tile Tile.\n * @protected\n */\n updateUsedTiles(usedTiles, tileSource, tile) {\n // FIXME should we use tilesToDrawByZ instead?\n const tileSourceKey = getUid(tileSource);\n if (!(tileSourceKey in usedTiles)) {\n usedTiles[tileSourceKey] = {};\n }\n usedTiles[tileSourceKey][tile.getKey()] = true;\n }\n\n /**\n * Manage tile pyramid.\n * This function performs a number of functions related to the tiles at the\n * current zoom and lower zoom levels:\n * - registers idle tiles in frameState.wantedTiles so that they are not\n * discarded by the tile queue\n * - enqueues missing tiles\n * @param {import(\"../../PluggableMap.js\").FrameState} frameState Frame state.\n * @param {import(\"../../source/Tile.js\").default} tileSource Tile source.\n * @param {import(\"../../tilegrid/TileGrid.js\").default} tileGrid Tile grid.\n * @param {number} pixelRatio Pixel ratio.\n * @param {import(\"../../proj/Projection.js\").default} projection Projection.\n * @param {import(\"../../extent.js\").Extent} extent Extent.\n * @param {number} currentZ Current Z.\n * @param {number} preload Load low resolution tiles up to 'preload' levels.\n * @param {function(import(\"../../Tile.js\").default)=} opt_tileCallback Tile callback.\n * @protected\n */\n manageTilePyramid(\n frameState,\n tileSource,\n tileGrid,\n pixelRatio,\n projection,\n extent,\n currentZ,\n preload,\n opt_tileCallback\n ) {\n const tileSourceKey = getUid(tileSource);\n if (!(tileSourceKey in frameState.wantedTiles)) {\n frameState.wantedTiles[tileSourceKey] = {};\n }\n const wantedTiles = frameState.wantedTiles[tileSourceKey];\n const tileQueue = frameState.tileQueue;\n const minZoom = tileGrid.getMinZoom();\n let tileCount = 0;\n let tile, tileRange, tileResolution, x, y, z;\n for (z = minZoom; z <= currentZ; ++z) {\n tileRange = tileGrid.getTileRangeForExtentAndZ(extent, z, tileRange);\n tileResolution = tileGrid.getResolution(z);\n for (x = tileRange.minX; x <= tileRange.maxX; ++x) {\n for (y = tileRange.minY; y <= tileRange.maxY; ++y) {\n if (currentZ - z <= preload) {\n ++tileCount;\n tile = tileSource.getTile(z, x, y, pixelRatio, projection);\n if (tile.getState() == TileState.IDLE) {\n wantedTiles[tile.getKey()] = true;\n if (!tileQueue.isKeyQueued(tile.getKey())) {\n tileQueue.enqueue([\n tile,\n tileSourceKey,\n tileGrid.getTileCoordCenter(tile.tileCoord),\n tileResolution,\n ]);\n }\n }\n if (opt_tileCallback !== undefined) {\n opt_tileCallback(tile);\n }\n } else {\n tileSource.useTile(z, x, y, projection);\n }\n }\n }\n }\n tileSource.updateCacheSize(tileCount, projection);\n }\n}\n\n/**\n * @function\n * @return {import(\"../../layer/Tile.js\").default|import(\"../../layer/VectorTile.js\").default}\n */\nCanvasTileLayerRenderer.prototype.getLayer;\n\nexport default CanvasTileLayerRenderer;\n","/**\n * @module ol/layer/Tile\n */\nimport BaseTileLayer from './BaseTile.js';\nimport CanvasTileLayerRenderer from '../renderer/canvas/TileLayer.js';\n\n/**\n * @classdesc\n * For layer sources that provide pre-rendered, tiled images in grids that are\n * organized by zoom levels for specific resolutions.\n * Note that any property set in the options is set as a {@link module:ol/Object~BaseObject}\n * property on the layer object; for example, setting `title: 'My Title'` in the\n * options means that `title` is observable, and has get/set accessors.\n *\n * @api\n */\nclass TileLayer extends BaseTileLayer {\n /**\n * @param {import(\"./BaseTile.js\").Options=} opt_options Tile layer options.\n */\n constructor(opt_options) {\n super(opt_options);\n }\n\n /**\n * Create a renderer for this layer.\n * @return {import(\"../renderer/Layer.js\").default} A layer renderer.\n * @protected\n */\n createRenderer() {\n return new CanvasTileLayerRenderer(this);\n }\n}\n\nexport default TileLayer;\n","/**\n * @module ol/reproj/common\n */\n\n/**\n * Default maximum allowed threshold (in pixels) for reprojection\n * triangulation.\n * @type {number}\n */\nexport const ERROR_THRESHOLD = 0.5;\n\n/**\n * Enable automatic reprojection of raster sources. Default is `true`.\n * TODO: decide if we want to expose this as a build flag or remove it\n * @type {boolean}\n */\nexport const ENABLE_RASTER_REPROJECTION = true;\n","/**\n * @module ol/reproj/Triangulation\n */\nimport {\n boundingExtent,\n createEmpty,\n extendCoordinate,\n getArea,\n getBottomLeft,\n getBottomRight,\n getTopLeft,\n getTopRight,\n getWidth,\n intersects,\n} from '../extent.js';\nimport {getTransform} from '../proj.js';\nimport {log2, modulo} from '../math.js';\n\n/**\n * Single triangle; consists of 3 source points and 3 target points.\n * @typedef {Object} Triangle\n * @property {Array<import(\"../coordinate.js\").Coordinate>} source\n * @property {Array<import(\"../coordinate.js\").Coordinate>} target\n */\n\n/**\n * Maximum number of subdivision steps during raster reprojection triangulation.\n * Prevents high memory usage and large number of proj4 calls (for certain\n * transformations and areas). At most `2*(2^this)` triangles are created for\n * each triangulated extent (tile/image).\n * @type {number}\n */\nconst MAX_SUBDIVISION = 10;\n\n/**\n * Maximum allowed size of triangle relative to world width. When transforming\n * corners of world extent between certain projections, the resulting\n * triangulation seems to have zero error and no subdivision is performed. If\n * the triangle width is more than this (relative to world width; 0-1),\n * subdivison is forced (up to `MAX_SUBDIVISION`). Default is `0.25`.\n * @type {number}\n */\nconst MAX_TRIANGLE_WIDTH = 0.25;\n\n/**\n * @classdesc\n * Class containing triangulation of the given target extent.\n * Used for determining source data and the reprojection itself.\n */\nclass Triangulation {\n /**\n * @param {import(\"../proj/Projection.js\").default} sourceProj Source projection.\n * @param {import(\"../proj/Projection.js\").default} targetProj Target projection.\n * @param {import(\"../extent.js\").Extent} targetExtent Target extent to triangulate.\n * @param {import(\"../extent.js\").Extent} maxSourceExtent Maximal source extent that can be used.\n * @param {number} errorThreshold Acceptable error (in source units).\n * @param {?number} opt_destinationResolution The (optional) resolution of the destination.\n */\n constructor(\n sourceProj,\n targetProj,\n targetExtent,\n maxSourceExtent,\n errorThreshold,\n opt_destinationResolution\n ) {\n /**\n * @type {import(\"../proj/Projection.js\").default}\n * @private\n */\n this.sourceProj_ = sourceProj;\n\n /**\n * @type {import(\"../proj/Projection.js\").default}\n * @private\n */\n this.targetProj_ = targetProj;\n\n /** @type {!Object<string, import(\"../coordinate.js\").Coordinate>} */\n let transformInvCache = {};\n const transformInv = getTransform(this.targetProj_, this.sourceProj_);\n\n /**\n * @param {import(\"../coordinate.js\").Coordinate} c A coordinate.\n * @return {import(\"../coordinate.js\").Coordinate} Transformed coordinate.\n * @private\n */\n this.transformInv_ = function (c) {\n const key = c[0] + '/' + c[1];\n if (!transformInvCache[key]) {\n transformInvCache[key] = transformInv(c);\n }\n return transformInvCache[key];\n };\n\n /**\n * @type {import(\"../extent.js\").Extent}\n * @private\n */\n this.maxSourceExtent_ = maxSourceExtent;\n\n /**\n * @type {number}\n * @private\n */\n this.errorThresholdSquared_ = errorThreshold * errorThreshold;\n\n /**\n * @type {Array<Triangle>}\n * @private\n */\n this.triangles_ = [];\n\n /**\n * Indicates that the triangulation crosses edge of the source projection.\n * @type {boolean}\n * @private\n */\n this.wrapsXInSource_ = false;\n\n /**\n * @type {boolean}\n * @private\n */\n this.canWrapXInSource_ =\n this.sourceProj_.canWrapX() &&\n !!maxSourceExtent &&\n !!this.sourceProj_.getExtent() &&\n getWidth(maxSourceExtent) == getWidth(this.sourceProj_.getExtent());\n\n /**\n * @type {?number}\n * @private\n */\n this.sourceWorldWidth_ = this.sourceProj_.getExtent()\n ? getWidth(this.sourceProj_.getExtent())\n : null;\n\n /**\n * @type {?number}\n * @private\n */\n this.targetWorldWidth_ = this.targetProj_.getExtent()\n ? getWidth(this.targetProj_.getExtent())\n : null;\n\n const destinationTopLeft = getTopLeft(targetExtent);\n const destinationTopRight = getTopRight(targetExtent);\n const destinationBottomRight = getBottomRight(targetExtent);\n const destinationBottomLeft = getBottomLeft(targetExtent);\n const sourceTopLeft = this.transformInv_(destinationTopLeft);\n const sourceTopRight = this.transformInv_(destinationTopRight);\n const sourceBottomRight = this.transformInv_(destinationBottomRight);\n const sourceBottomLeft = this.transformInv_(destinationBottomLeft);\n\n /*\n * The maxSubdivision controls how many splittings of the target area can\n * be done. The idea here is to do a linear mapping of the target areas\n * but the actual overal reprojection (can be) extremely non-linear. The\n * default value of MAX_SUBDIVISION was chosen based on mapping a 256x256\n * tile size. However this function is also called to remap canvas rendered\n * layers which can be much larger. This calculation increases the maxSubdivision\n * value by the right factor so that each 256x256 pixel area has\n * MAX_SUBDIVISION divisions.\n */\n const maxSubdivision =\n MAX_SUBDIVISION +\n (opt_destinationResolution\n ? Math.max(\n 0,\n Math.ceil(\n log2(\n getArea(targetExtent) /\n (opt_destinationResolution *\n opt_destinationResolution *\n 256 *\n 256)\n )\n )\n )\n : 0);\n\n this.addQuad_(\n destinationTopLeft,\n destinationTopRight,\n destinationBottomRight,\n destinationBottomLeft,\n sourceTopLeft,\n sourceTopRight,\n sourceBottomRight,\n sourceBottomLeft,\n maxSubdivision\n );\n\n if (this.wrapsXInSource_) {\n let leftBound = Infinity;\n this.triangles_.forEach(function (triangle, i, arr) {\n leftBound = Math.min(\n leftBound,\n triangle.source[0][0],\n triangle.source[1][0],\n triangle.source[2][0]\n );\n });\n\n // Shift triangles to be as close to `leftBound` as possible\n // (if the distance is more than `worldWidth / 2` it can be closer.\n this.triangles_.forEach(\n function (triangle) {\n if (\n Math.max(\n triangle.source[0][0],\n triangle.source[1][0],\n triangle.source[2][0]\n ) -\n leftBound >\n this.sourceWorldWidth_ / 2\n ) {\n const newTriangle = [\n [triangle.source[0][0], triangle.source[0][1]],\n [triangle.source[1][0], triangle.source[1][1]],\n [triangle.source[2][0], triangle.source[2][1]],\n ];\n if (newTriangle[0][0] - leftBound > this.sourceWorldWidth_ / 2) {\n newTriangle[0][0] -= this.sourceWorldWidth_;\n }\n if (newTriangle[1][0] - leftBound > this.sourceWorldWidth_ / 2) {\n newTriangle[1][0] -= this.sourceWorldWidth_;\n }\n if (newTriangle[2][0] - leftBound > this.sourceWorldWidth_ / 2) {\n newTriangle[2][0] -= this.sourceWorldWidth_;\n }\n\n // Rarely (if the extent contains both the dateline and prime meridian)\n // the shift can in turn break some triangles.\n // Detect this here and don't shift in such cases.\n const minX = Math.min(\n newTriangle[0][0],\n newTriangle[1][0],\n newTriangle[2][0]\n );\n const maxX = Math.max(\n newTriangle[0][0],\n newTriangle[1][0],\n newTriangle[2][0]\n );\n if (maxX - minX < this.sourceWorldWidth_ / 2) {\n triangle.source = newTriangle;\n }\n }\n }.bind(this)\n );\n }\n\n transformInvCache = {};\n }\n\n /**\n * Adds triangle to the triangulation.\n * @param {import(\"../coordinate.js\").Coordinate} a The target a coordinate.\n * @param {import(\"../coordinate.js\").Coordinate} b The target b coordinate.\n * @param {import(\"../coordinate.js\").Coordinate} c The target c coordinate.\n * @param {import(\"../coordinate.js\").Coordinate} aSrc The source a coordinate.\n * @param {import(\"../coordinate.js\").Coordinate} bSrc The source b coordinate.\n * @param {import(\"../coordinate.js\").Coordinate} cSrc The source c coordinate.\n * @private\n */\n addTriangle_(a, b, c, aSrc, bSrc, cSrc) {\n this.triangles_.push({\n source: [aSrc, bSrc, cSrc],\n target: [a, b, c],\n });\n }\n\n /**\n * Adds quad (points in clock-wise order) to the triangulation\n * (and reprojects the vertices) if valid.\n * Performs quad subdivision if needed to increase precision.\n *\n * @param {import(\"../coordinate.js\").Coordinate} a The target a coordinate.\n * @param {import(\"../coordinate.js\").Coordinate} b The target b coordinate.\n * @param {import(\"../coordinate.js\").Coordinate} c The target c coordinate.\n * @param {import(\"../coordinate.js\").Coordinate} d The target d coordinate.\n * @param {import(\"../coordinate.js\").Coordinate} aSrc The source a coordinate.\n * @param {import(\"../coordinate.js\").Coordinate} bSrc The source b coordinate.\n * @param {import(\"../coordinate.js\").Coordinate} cSrc The source c coordinate.\n * @param {import(\"../coordinate.js\").Coordinate} dSrc The source d coordinate.\n * @param {number} maxSubdivision Maximal allowed subdivision of the quad.\n * @private\n */\n addQuad_(a, b, c, d, aSrc, bSrc, cSrc, dSrc, maxSubdivision) {\n const sourceQuadExtent = boundingExtent([aSrc, bSrc, cSrc, dSrc]);\n const sourceCoverageX = this.sourceWorldWidth_\n ? getWidth(sourceQuadExtent) / this.sourceWorldWidth_\n : null;\n const sourceWorldWidth = /** @type {number} */ (this.sourceWorldWidth_);\n\n // when the quad is wrapped in the source projection\n // it covers most of the projection extent, but not fully\n const wrapsX =\n this.sourceProj_.canWrapX() &&\n sourceCoverageX > 0.5 &&\n sourceCoverageX < 1;\n\n let needsSubdivision = false;\n\n if (maxSubdivision > 0) {\n if (this.targetProj_.isGlobal() && this.targetWorldWidth_) {\n const targetQuadExtent = boundingExtent([a, b, c, d]);\n const targetCoverageX =\n getWidth(targetQuadExtent) / this.targetWorldWidth_;\n needsSubdivision =\n targetCoverageX > MAX_TRIANGLE_WIDTH || needsSubdivision;\n }\n if (!wrapsX && this.sourceProj_.isGlobal() && sourceCoverageX) {\n needsSubdivision =\n sourceCoverageX > MAX_TRIANGLE_WIDTH || needsSubdivision;\n }\n }\n\n if (!needsSubdivision && this.maxSourceExtent_) {\n if (\n isFinite(sourceQuadExtent[0]) &&\n isFinite(sourceQuadExtent[1]) &&\n isFinite(sourceQuadExtent[2]) &&\n isFinite(sourceQuadExtent[3])\n ) {\n if (!intersects(sourceQuadExtent, this.maxSourceExtent_)) {\n // whole quad outside source projection extent -> ignore\n return;\n }\n }\n }\n\n let isNotFinite = 0;\n\n if (!needsSubdivision) {\n if (\n !isFinite(aSrc[0]) ||\n !isFinite(aSrc[1]) ||\n !isFinite(bSrc[0]) ||\n !isFinite(bSrc[1]) ||\n !isFinite(cSrc[0]) ||\n !isFinite(cSrc[1]) ||\n !isFinite(dSrc[0]) ||\n !isFinite(dSrc[1])\n ) {\n if (maxSubdivision > 0) {\n needsSubdivision = true;\n } else {\n // It might be the case that only 1 of the points is infinite. In this case\n // we can draw a single triangle with the other three points\n isNotFinite =\n (!isFinite(aSrc[0]) || !isFinite(aSrc[1]) ? 8 : 0) +\n (!isFinite(bSrc[0]) || !isFinite(bSrc[1]) ? 4 : 0) +\n (!isFinite(cSrc[0]) || !isFinite(cSrc[1]) ? 2 : 0) +\n (!isFinite(dSrc[0]) || !isFinite(dSrc[1]) ? 1 : 0);\n if (\n isNotFinite != 1 &&\n isNotFinite != 2 &&\n isNotFinite != 4 &&\n isNotFinite != 8\n ) {\n return;\n }\n }\n }\n }\n\n if (maxSubdivision > 0) {\n if (!needsSubdivision) {\n const center = [(a[0] + c[0]) / 2, (a[1] + c[1]) / 2];\n const centerSrc = this.transformInv_(center);\n\n let dx;\n if (wrapsX) {\n const centerSrcEstimX =\n (modulo(aSrc[0], sourceWorldWidth) +\n modulo(cSrc[0], sourceWorldWidth)) /\n 2;\n dx = centerSrcEstimX - modulo(centerSrc[0], sourceWorldWidth);\n } else {\n dx = (aSrc[0] + cSrc[0]) / 2 - centerSrc[0];\n }\n const dy = (aSrc[1] + cSrc[1]) / 2 - centerSrc[1];\n const centerSrcErrorSquared = dx * dx + dy * dy;\n needsSubdivision = centerSrcErrorSquared > this.errorThresholdSquared_;\n }\n if (needsSubdivision) {\n if (Math.abs(a[0] - c[0]) <= Math.abs(a[1] - c[1])) {\n // split horizontally (top & bottom)\n const bc = [(b[0] + c[0]) / 2, (b[1] + c[1]) / 2];\n const bcSrc = this.transformInv_(bc);\n const da = [(d[0] + a[0]) / 2, (d[1] + a[1]) / 2];\n const daSrc = this.transformInv_(da);\n\n this.addQuad_(\n a,\n b,\n bc,\n da,\n aSrc,\n bSrc,\n bcSrc,\n daSrc,\n maxSubdivision - 1\n );\n this.addQuad_(\n da,\n bc,\n c,\n d,\n daSrc,\n bcSrc,\n cSrc,\n dSrc,\n maxSubdivision - 1\n );\n } else {\n // split vertically (left & right)\n const ab = [(a[0] + b[0]) / 2, (a[1] + b[1]) / 2];\n const abSrc = this.transformInv_(ab);\n const cd = [(c[0] + d[0]) / 2, (c[1] + d[1]) / 2];\n const cdSrc = this.transformInv_(cd);\n\n this.addQuad_(\n a,\n ab,\n cd,\n d,\n aSrc,\n abSrc,\n cdSrc,\n dSrc,\n maxSubdivision - 1\n );\n this.addQuad_(\n ab,\n b,\n c,\n cd,\n abSrc,\n bSrc,\n cSrc,\n cdSrc,\n maxSubdivision - 1\n );\n }\n return;\n }\n }\n\n if (wrapsX) {\n if (!this.canWrapXInSource_) {\n return;\n }\n this.wrapsXInSource_ = true;\n }\n\n // Exactly zero or one of *Src is not finite\n // The triangles must have the diagonal line as the first side\n // This is to allow easy code in reproj.s to make it straight for broken\n // browsers that can't handle diagonal clipping\n if ((isNotFinite & 0xb) == 0) {\n this.addTriangle_(a, c, d, aSrc, cSrc, dSrc);\n }\n if ((isNotFinite & 0xe) == 0) {\n this.addTriangle_(a, c, b, aSrc, cSrc, bSrc);\n }\n if (isNotFinite) {\n // Try the other two triangles\n if ((isNotFinite & 0xd) == 0) {\n this.addTriangle_(b, d, a, bSrc, dSrc, aSrc);\n }\n if ((isNotFinite & 0x7) == 0) {\n this.addTriangle_(b, d, c, bSrc, dSrc, cSrc);\n }\n }\n }\n\n /**\n * Calculates extent of the 'source' coordinates from all the triangles.\n *\n * @return {import(\"../extent.js\").Extent} Calculated extent.\n */\n calculateSourceExtent() {\n const extent = createEmpty();\n\n this.triangles_.forEach(function (triangle, i, arr) {\n const src = triangle.source;\n extendCoordinate(extent, src[0]);\n extendCoordinate(extent, src[1]);\n extendCoordinate(extent, src[2]);\n });\n\n return extent;\n }\n\n /**\n * @return {Array<Triangle>} Array of the calculated triangles.\n */\n getTriangles() {\n return this.triangles_;\n }\n}\n\nexport default Triangulation;\n","/**\n * @module ol/source/common\n */\n\n/**\n * Default WMS version.\n * @type {string}\n */\nexport const DEFAULT_WMS_VERSION = '1.3.0';\n\n/**\n * Context options to disable image smoothing.\n * @type {Object}\n */\nexport const IMAGE_SMOOTHING_DISABLED = {\n imageSmoothingEnabled: false,\n msImageSmoothingEnabled: false,\n};\n","/**\n * @module ol/reproj\n */\nimport {IMAGE_SMOOTHING_DISABLED} from './source/common.js';\nimport {assign} from './obj.js';\nimport {\n containsCoordinate,\n createEmpty,\n extend,\n forEachCorner,\n getCenter,\n getHeight,\n getTopLeft,\n getWidth,\n} from './extent.js';\nimport {createCanvasContext2D} from './dom.js';\nimport {getPointResolution, transform} from './proj.js';\nimport {solveLinearSystem} from './math.js';\n\nlet brokenDiagonalRendering_;\n\n/**\n * This draws a small triangle into a canvas by setting the triangle as the clip region\n * and then drawing a (too large) rectangle\n *\n * @param {CanvasRenderingContext2D} ctx The context in which to draw the triangle\n * @param {number} u1 The x-coordinate of the second point. The first point is 0,0.\n * @param {number} v1 The y-coordinate of the second point.\n * @param {number} u2 The x-coordinate of the third point.\n * @param {number} v2 The y-coordinate of the third point.\n */\nfunction drawTestTriangle(ctx, u1, v1, u2, v2) {\n ctx.beginPath();\n ctx.moveTo(0, 0);\n ctx.lineTo(u1, v1);\n ctx.lineTo(u2, v2);\n ctx.closePath();\n ctx.save();\n ctx.clip();\n ctx.fillRect(0, 0, Math.max(u1, u2) + 1, Math.max(v1, v2));\n ctx.restore();\n}\n\n/**\n * Given the data from getImageData, see if the right values appear at the provided offset.\n * Returns true if either the color or transparency is off\n *\n * @param {Uint8ClampedArray} data The data returned from getImageData\n * @param {number} offset The pixel offset from the start of data.\n * @return {boolean} true if the diagonal rendering is broken\n */\nfunction verifyBrokenDiagonalRendering(data, offset) {\n // the values ought to be close to the rgba(210, 0, 0, 0.75)\n return (\n Math.abs(data[offset * 4] - 210) > 2 ||\n Math.abs(data[offset * 4 + 3] - 0.75 * 255) > 2\n );\n}\n\n/**\n * Determines if the current browser configuration can render triangular clip regions correctly.\n * This value is cached so the function is only expensive the first time called.\n * Firefox on Windows (as of now) does not if HWA is enabled. See https://bugzilla.mozilla.org/show_bug.cgi?id=1606976\n * IE also doesn't. Chrome works, and everything seems to work on OSX and Android. This function caches the\n * result. I suppose that it is conceivably possible that a browser might flip modes while the app is\n * running, but lets hope not.\n *\n * @return {boolean} true if the Diagonal Rendering is broken.\n */\nfunction isBrokenDiagonalRendering() {\n if (brokenDiagonalRendering_ === undefined) {\n const ctx = document.createElement('canvas').getContext('2d');\n ctx.globalCompositeOperation = 'lighter';\n ctx.fillStyle = 'rgba(210, 0, 0, 0.75)';\n drawTestTriangle(ctx, 4, 5, 4, 0);\n drawTestTriangle(ctx, 4, 5, 0, 5);\n const data = ctx.getImageData(0, 0, 3, 3).data;\n brokenDiagonalRendering_ =\n verifyBrokenDiagonalRendering(data, 0) ||\n verifyBrokenDiagonalRendering(data, 4) ||\n verifyBrokenDiagonalRendering(data, 8);\n }\n\n return brokenDiagonalRendering_;\n}\n\n/**\n * Calculates ideal resolution to use from the source in order to achieve\n * pixel mapping as close as possible to 1:1 during reprojection.\n * The resolution is calculated regardless of what resolutions\n * are actually available in the dataset (TileGrid, Image, ...).\n *\n * @param {import(\"./proj/Projection.js\").default} sourceProj Source projection.\n * @param {import(\"./proj/Projection.js\").default} targetProj Target projection.\n * @param {import(\"./coordinate.js\").Coordinate} targetCenter Target center.\n * @param {number} targetResolution Target resolution.\n * @return {number} The best resolution to use. Can be +-Infinity, NaN or 0.\n */\nexport function calculateSourceResolution(\n sourceProj,\n targetProj,\n targetCenter,\n targetResolution\n) {\n const sourceCenter = transform(targetCenter, targetProj, sourceProj);\n\n // calculate the ideal resolution of the source data\n let sourceResolution = getPointResolution(\n targetProj,\n targetResolution,\n targetCenter\n );\n\n const targetMetersPerUnit = targetProj.getMetersPerUnit();\n if (targetMetersPerUnit !== undefined) {\n sourceResolution *= targetMetersPerUnit;\n }\n const sourceMetersPerUnit = sourceProj.getMetersPerUnit();\n if (sourceMetersPerUnit !== undefined) {\n sourceResolution /= sourceMetersPerUnit;\n }\n\n // Based on the projection properties, the point resolution at the specified\n // coordinates may be slightly different. We need to reverse-compensate this\n // in order to achieve optimal results.\n\n const sourceExtent = sourceProj.getExtent();\n if (!sourceExtent || containsCoordinate(sourceExtent, sourceCenter)) {\n const compensationFactor =\n getPointResolution(sourceProj, sourceResolution, sourceCenter) /\n sourceResolution;\n if (isFinite(compensationFactor) && compensationFactor > 0) {\n sourceResolution /= compensationFactor;\n }\n }\n\n return sourceResolution;\n}\n\n/**\n * Calculates ideal resolution to use from the source in order to achieve\n * pixel mapping as close as possible to 1:1 during reprojection.\n * The resolution is calculated regardless of what resolutions\n * are actually available in the dataset (TileGrid, Image, ...).\n *\n * @param {import(\"./proj/Projection.js\").default} sourceProj Source projection.\n * @param {import(\"./proj/Projection.js\").default} targetProj Target projection.\n * @param {import(\"./extent.js\").Extent} targetExtent Target extent\n * @param {number} targetResolution Target resolution.\n * @return {number} The best resolution to use. Can be +-Infinity, NaN or 0.\n */\nexport function calculateSourceExtentResolution(\n sourceProj,\n targetProj,\n targetExtent,\n targetResolution\n) {\n const targetCenter = getCenter(targetExtent);\n let sourceResolution = calculateSourceResolution(\n sourceProj,\n targetProj,\n targetCenter,\n targetResolution\n );\n\n if (!isFinite(sourceResolution) || sourceResolution <= 0) {\n forEachCorner(targetExtent, function (corner) {\n sourceResolution = calculateSourceResolution(\n sourceProj,\n targetProj,\n corner,\n targetResolution\n );\n return isFinite(sourceResolution) && sourceResolution > 0;\n });\n }\n\n return sourceResolution;\n}\n\n/**\n * Renders the source data into new canvas based on the triangulation.\n *\n * @param {number} width Width of the canvas.\n * @param {number} height Height of the canvas.\n * @param {number} pixelRatio Pixel ratio.\n * @param {number} sourceResolution Source resolution.\n * @param {import(\"./extent.js\").Extent} sourceExtent Extent of the data source.\n * @param {number} targetResolution Target resolution.\n * @param {import(\"./extent.js\").Extent} targetExtent Target extent.\n * @param {import(\"./reproj/Triangulation.js\").default} triangulation\n * Calculated triangulation.\n * @param {Array<{extent: import(\"./extent.js\").Extent,\n * image: (HTMLCanvasElement|HTMLImageElement|HTMLVideoElement)}>} sources\n * Array of sources.\n * @param {number} gutter Gutter of the sources.\n * @param {boolean=} opt_renderEdges Render reprojection edges.\n * @param {object=} opt_contextOptions Properties to set on the canvas context.\n * @return {HTMLCanvasElement} Canvas with reprojected data.\n */\nexport function render(\n width,\n height,\n pixelRatio,\n sourceResolution,\n sourceExtent,\n targetResolution,\n targetExtent,\n triangulation,\n sources,\n gutter,\n opt_renderEdges,\n opt_contextOptions\n) {\n const context = createCanvasContext2D(\n Math.round(pixelRatio * width),\n Math.round(pixelRatio * height)\n );\n assign(context, opt_contextOptions);\n\n if (sources.length === 0) {\n return context.canvas;\n }\n\n context.scale(pixelRatio, pixelRatio);\n\n function pixelRound(value) {\n return Math.round(value * pixelRatio) / pixelRatio;\n }\n\n context.globalCompositeOperation = 'lighter';\n\n const sourceDataExtent = createEmpty();\n sources.forEach(function (src, i, arr) {\n extend(sourceDataExtent, src.extent);\n });\n\n const canvasWidthInUnits = getWidth(sourceDataExtent);\n const canvasHeightInUnits = getHeight(sourceDataExtent);\n const stitchContext = createCanvasContext2D(\n Math.round((pixelRatio * canvasWidthInUnits) / sourceResolution),\n Math.round((pixelRatio * canvasHeightInUnits) / sourceResolution)\n );\n assign(stitchContext, opt_contextOptions);\n\n const stitchScale = pixelRatio / sourceResolution;\n\n sources.forEach(function (src, i, arr) {\n const xPos = src.extent[0] - sourceDataExtent[0];\n const yPos = -(src.extent[3] - sourceDataExtent[3]);\n const srcWidth = getWidth(src.extent);\n const srcHeight = getHeight(src.extent);\n\n // This test should never fail -- but it does. Need to find a fix the upstream condition\n if (src.image.width > 0 && src.image.height > 0) {\n stitchContext.drawImage(\n src.image,\n gutter,\n gutter,\n src.image.width - 2 * gutter,\n src.image.height - 2 * gutter,\n xPos * stitchScale,\n yPos * stitchScale,\n srcWidth * stitchScale,\n srcHeight * stitchScale\n );\n }\n });\n\n const targetTopLeft = getTopLeft(targetExtent);\n\n triangulation.getTriangles().forEach(function (triangle, i, arr) {\n /* Calculate affine transform (src -> dst)\n * Resulting matrix can be used to transform coordinate\n * from `sourceProjection` to destination pixels.\n *\n * To optimize number of context calls and increase numerical stability,\n * we also do the following operations:\n * trans(-topLeftExtentCorner), scale(1 / targetResolution), scale(1, -1)\n * here before solving the linear system so [ui, vi] are pixel coordinates.\n *\n * Src points: xi, yi\n * Dst points: ui, vi\n * Affine coefficients: aij\n *\n * | x0 y0 1 0 0 0 | |a00| |u0|\n * | x1 y1 1 0 0 0 | |a01| |u1|\n * | x2 y2 1 0 0 0 | x |a02| = |u2|\n * | 0 0 0 x0 y0 1 | |a10| |v0|\n * | 0 0 0 x1 y1 1 | |a11| |v1|\n * | 0 0 0 x2 y2 1 | |a12| |v2|\n */\n const source = triangle.source;\n const target = triangle.target;\n let x0 = source[0][0],\n y0 = source[0][1];\n let x1 = source[1][0],\n y1 = source[1][1];\n let x2 = source[2][0],\n y2 = source[2][1];\n // Make sure that everything is on pixel boundaries\n const u0 = pixelRound((target[0][0] - targetTopLeft[0]) / targetResolution);\n const v0 = pixelRound(\n -(target[0][1] - targetTopLeft[1]) / targetResolution\n );\n const u1 = pixelRound((target[1][0] - targetTopLeft[0]) / targetResolution);\n const v1 = pixelRound(\n -(target[1][1] - targetTopLeft[1]) / targetResolution\n );\n const u2 = pixelRound((target[2][0] - targetTopLeft[0]) / targetResolution);\n const v2 = pixelRound(\n -(target[2][1] - targetTopLeft[1]) / targetResolution\n );\n\n // Shift all the source points to improve numerical stability\n // of all the subsequent calculations. The [x0, y0] is used here.\n // This is also used to simplify the linear system.\n const sourceNumericalShiftX = x0;\n const sourceNumericalShiftY = y0;\n x0 = 0;\n y0 = 0;\n x1 -= sourceNumericalShiftX;\n y1 -= sourceNumericalShiftY;\n x2 -= sourceNumericalShiftX;\n y2 -= sourceNumericalShiftY;\n\n const augmentedMatrix = [\n [x1, y1, 0, 0, u1 - u0],\n [x2, y2, 0, 0, u2 - u0],\n [0, 0, x1, y1, v1 - v0],\n [0, 0, x2, y2, v2 - v0],\n ];\n const affineCoefs = solveLinearSystem(augmentedMatrix);\n if (!affineCoefs) {\n return;\n }\n\n context.save();\n context.beginPath();\n\n if (\n isBrokenDiagonalRendering() ||\n opt_contextOptions === IMAGE_SMOOTHING_DISABLED\n ) {\n // Make sure that all lines are horizontal or vertical\n context.moveTo(u1, v1);\n // This is the diagonal line. Do it in 4 steps\n const steps = 4;\n const ud = u0 - u1;\n const vd = v0 - v1;\n for (let step = 0; step < steps; step++) {\n // Go horizontally\n context.lineTo(\n u1 + pixelRound(((step + 1) * ud) / steps),\n v1 + pixelRound((step * vd) / (steps - 1))\n );\n // Go vertically\n if (step != steps - 1) {\n context.lineTo(\n u1 + pixelRound(((step + 1) * ud) / steps),\n v1 + pixelRound(((step + 1) * vd) / (steps - 1))\n );\n }\n }\n // We are almost at u0r, v0r\n context.lineTo(u2, v2);\n } else {\n context.moveTo(u1, v1);\n context.lineTo(u0, v0);\n context.lineTo(u2, v2);\n }\n\n context.clip();\n\n context.transform(\n affineCoefs[0],\n affineCoefs[2],\n affineCoefs[1],\n affineCoefs[3],\n u0,\n v0\n );\n\n context.translate(\n sourceDataExtent[0] - sourceNumericalShiftX,\n sourceDataExtent[3] - sourceNumericalShiftY\n );\n\n context.scale(\n sourceResolution / pixelRatio,\n -sourceResolution / pixelRatio\n );\n\n context.drawImage(stitchContext.canvas, 0, 0);\n context.restore();\n });\n\n if (opt_renderEdges) {\n context.save();\n\n context.globalCompositeOperation = 'source-over';\n context.strokeStyle = 'black';\n context.lineWidth = 1;\n\n triangulation.getTriangles().forEach(function (triangle, i, arr) {\n const target = triangle.target;\n const u0 = (target[0][0] - targetTopLeft[0]) / targetResolution;\n const v0 = -(target[0][1] - targetTopLeft[1]) / targetResolution;\n const u1 = (target[1][0] - targetTopLeft[0]) / targetResolution;\n const v1 = -(target[1][1] - targetTopLeft[1]) / targetResolution;\n const u2 = (target[2][0] - targetTopLeft[0]) / targetResolution;\n const v2 = -(target[2][1] - targetTopLeft[1]) / targetResolution;\n\n context.beginPath();\n context.moveTo(u1, v1);\n context.lineTo(u0, v0);\n context.lineTo(u2, v2);\n context.closePath();\n context.stroke();\n });\n\n context.restore();\n }\n return context.canvas;\n}\n","/**\n * @module ol/reproj/Tile\n */\nimport {ERROR_THRESHOLD} from './common.js';\n\nimport EventType from '../events/EventType.js';\nimport Tile from '../Tile.js';\nimport TileState from '../TileState.js';\nimport Triangulation from './Triangulation.js';\nimport {\n calculateSourceExtentResolution,\n render as renderReprojected,\n} from '../reproj.js';\nimport {clamp} from '../math.js';\nimport {getArea, getIntersection} from '../extent.js';\nimport {listen, unlistenByKey} from '../events.js';\n\n/**\n * @typedef {function(number, number, number, number) : import(\"../Tile.js\").default} FunctionType\n */\n\n/**\n * @classdesc\n * Class encapsulating single reprojected tile.\n * See {@link module:ol/source/TileImage~TileImage}.\n *\n */\nclass ReprojTile extends Tile {\n /**\n * @param {import(\"../proj/Projection.js\").default} sourceProj Source projection.\n * @param {import(\"../tilegrid/TileGrid.js\").default} sourceTileGrid Source tile grid.\n * @param {import(\"../proj/Projection.js\").default} targetProj Target projection.\n * @param {import(\"../tilegrid/TileGrid.js\").default} targetTileGrid Target tile grid.\n * @param {import(\"../tilecoord.js\").TileCoord} tileCoord Coordinate of the tile.\n * @param {import(\"../tilecoord.js\").TileCoord} wrappedTileCoord Coordinate of the tile wrapped in X.\n * @param {number} pixelRatio Pixel ratio.\n * @param {number} gutter Gutter of the source tiles.\n * @param {FunctionType} getTileFunction\n * Function returning source tiles (z, x, y, pixelRatio).\n * @param {number=} opt_errorThreshold Acceptable reprojection error (in px).\n * @param {boolean=} opt_renderEdges Render reprojection edges.\n * @param {object=} opt_contextOptions Properties to set on the canvas context.\n */\n constructor(\n sourceProj,\n sourceTileGrid,\n targetProj,\n targetTileGrid,\n tileCoord,\n wrappedTileCoord,\n pixelRatio,\n gutter,\n getTileFunction,\n opt_errorThreshold,\n opt_renderEdges,\n opt_contextOptions\n ) {\n super(tileCoord, TileState.IDLE);\n\n /**\n * @private\n * @type {boolean}\n */\n this.renderEdges_ = opt_renderEdges !== undefined ? opt_renderEdges : false;\n\n /**\n * @private\n * @type {object}\n */\n this.contextOptions_ = opt_contextOptions;\n\n /**\n * @private\n * @type {number}\n */\n this.pixelRatio_ = pixelRatio;\n\n /**\n * @private\n * @type {number}\n */\n this.gutter_ = gutter;\n\n /**\n * @private\n * @type {HTMLCanvasElement}\n */\n this.canvas_ = null;\n\n /**\n * @private\n * @type {import(\"../tilegrid/TileGrid.js\").default}\n */\n this.sourceTileGrid_ = sourceTileGrid;\n\n /**\n * @private\n * @type {import(\"../tilegrid/TileGrid.js\").default}\n */\n this.targetTileGrid_ = targetTileGrid;\n\n /**\n * @private\n * @type {import(\"../tilecoord.js\").TileCoord}\n */\n this.wrappedTileCoord_ = wrappedTileCoord ? wrappedTileCoord : tileCoord;\n\n /**\n * @private\n * @type {!Array<import(\"../Tile.js\").default>}\n */\n this.sourceTiles_ = [];\n\n /**\n * @private\n * @type {?Array<import(\"../events.js\").EventsKey>}\n */\n this.sourcesListenerKeys_ = null;\n\n /**\n * @private\n * @type {number}\n */\n this.sourceZ_ = 0;\n\n const targetExtent = targetTileGrid.getTileCoordExtent(\n this.wrappedTileCoord_\n );\n const maxTargetExtent = this.targetTileGrid_.getExtent();\n let maxSourceExtent = this.sourceTileGrid_.getExtent();\n\n const limitedTargetExtent = maxTargetExtent\n ? getIntersection(targetExtent, maxTargetExtent)\n : targetExtent;\n\n if (getArea(limitedTargetExtent) === 0) {\n // Tile is completely outside range -> EMPTY\n // TODO: is it actually correct that the source even creates the tile ?\n this.state = TileState.EMPTY;\n return;\n }\n\n const sourceProjExtent = sourceProj.getExtent();\n if (sourceProjExtent) {\n if (!maxSourceExtent) {\n maxSourceExtent = sourceProjExtent;\n } else {\n maxSourceExtent = getIntersection(maxSourceExtent, sourceProjExtent);\n }\n }\n\n const targetResolution = targetTileGrid.getResolution(\n this.wrappedTileCoord_[0]\n );\n\n const sourceResolution = calculateSourceExtentResolution(\n sourceProj,\n targetProj,\n limitedTargetExtent,\n targetResolution\n );\n\n if (!isFinite(sourceResolution) || sourceResolution <= 0) {\n // invalid sourceResolution -> EMPTY\n // probably edges of the projections when no extent is defined\n this.state = TileState.EMPTY;\n return;\n }\n\n const errorThresholdInPixels =\n opt_errorThreshold !== undefined ? opt_errorThreshold : ERROR_THRESHOLD;\n\n /**\n * @private\n * @type {!import(\"./Triangulation.js\").default}\n */\n this.triangulation_ = new Triangulation(\n sourceProj,\n targetProj,\n limitedTargetExtent,\n maxSourceExtent,\n sourceResolution * errorThresholdInPixels,\n targetResolution\n );\n\n if (this.triangulation_.getTriangles().length === 0) {\n // no valid triangles -> EMPTY\n this.state = TileState.EMPTY;\n return;\n }\n\n this.sourceZ_ = sourceTileGrid.getZForResolution(sourceResolution);\n let sourceExtent = this.triangulation_.calculateSourceExtent();\n\n if (maxSourceExtent) {\n if (sourceProj.canWrapX()) {\n sourceExtent[1] = clamp(\n sourceExtent[1],\n maxSourceExtent[1],\n maxSourceExtent[3]\n );\n sourceExtent[3] = clamp(\n sourceExtent[3],\n maxSourceExtent[1],\n maxSourceExtent[3]\n );\n } else {\n sourceExtent = getIntersection(sourceExtent, maxSourceExtent);\n }\n }\n\n if (!getArea(sourceExtent)) {\n this.state = TileState.EMPTY;\n } else {\n const sourceRange = sourceTileGrid.getTileRangeForExtentAndZ(\n sourceExtent,\n this.sourceZ_\n );\n\n for (let srcX = sourceRange.minX; srcX <= sourceRange.maxX; srcX++) {\n for (let srcY = sourceRange.minY; srcY <= sourceRange.maxY; srcY++) {\n const tile = getTileFunction(this.sourceZ_, srcX, srcY, pixelRatio);\n if (tile) {\n this.sourceTiles_.push(tile);\n }\n }\n }\n\n if (this.sourceTiles_.length === 0) {\n this.state = TileState.EMPTY;\n }\n }\n }\n\n /**\n * Get the HTML Canvas element for this tile.\n * @return {HTMLCanvasElement} Canvas.\n */\n getImage() {\n return this.canvas_;\n }\n\n /**\n * @private\n */\n reproject_() {\n const sources = [];\n this.sourceTiles_.forEach(\n function (tile, i, arr) {\n if (tile && tile.getState() == TileState.LOADED) {\n sources.push({\n extent: this.sourceTileGrid_.getTileCoordExtent(tile.tileCoord),\n image: tile.getImage(),\n });\n }\n }.bind(this)\n );\n this.sourceTiles_.length = 0;\n\n if (sources.length === 0) {\n this.state = TileState.ERROR;\n } else {\n const z = this.wrappedTileCoord_[0];\n const size = this.targetTileGrid_.getTileSize(z);\n const width = typeof size === 'number' ? size : size[0];\n const height = typeof size === 'number' ? size : size[1];\n const targetResolution = this.targetTileGrid_.getResolution(z);\n const sourceResolution = this.sourceTileGrid_.getResolution(\n this.sourceZ_\n );\n\n const targetExtent = this.targetTileGrid_.getTileCoordExtent(\n this.wrappedTileCoord_\n );\n this.canvas_ = renderReprojected(\n width,\n height,\n this.pixelRatio_,\n sourceResolution,\n this.sourceTileGrid_.getExtent(),\n targetResolution,\n targetExtent,\n this.triangulation_,\n sources,\n this.gutter_,\n this.renderEdges_,\n this.contextOptions_\n );\n\n this.state = TileState.LOADED;\n }\n this.changed();\n }\n\n /**\n * Load not yet loaded URI.\n */\n load() {\n if (this.state == TileState.IDLE) {\n this.state = TileState.LOADING;\n this.changed();\n\n let leftToLoad = 0;\n\n this.sourcesListenerKeys_ = [];\n this.sourceTiles_.forEach(\n function (tile, i, arr) {\n const state = tile.getState();\n if (state == TileState.IDLE || state == TileState.LOADING) {\n leftToLoad++;\n\n const sourceListenKey = listen(\n tile,\n EventType.CHANGE,\n function (e) {\n const state = tile.getState();\n if (\n state == TileState.LOADED ||\n state == TileState.ERROR ||\n state == TileState.EMPTY\n ) {\n unlistenByKey(sourceListenKey);\n leftToLoad--;\n if (leftToLoad === 0) {\n this.unlistenSources_();\n this.reproject_();\n }\n }\n },\n this\n );\n this.sourcesListenerKeys_.push(sourceListenKey);\n }\n }.bind(this)\n );\n\n this.sourceTiles_.forEach(function (tile, i, arr) {\n const state = tile.getState();\n if (state == TileState.IDLE) {\n tile.load();\n }\n });\n\n if (leftToLoad === 0) {\n setTimeout(this.reproject_.bind(this), 0);\n }\n }\n }\n\n /**\n * @private\n */\n unlistenSources_() {\n this.sourcesListenerKeys_.forEach(unlistenByKey);\n this.sourcesListenerKeys_ = null;\n }\n}\n\nexport default ReprojTile;\n","/**\n * @module ol/source/TileEventType\n */\n\n/**\n * @enum {string}\n */\nexport default {\n /**\n * Triggered when a tile starts loading.\n * @event module:ol/source/Tile.TileSourceEvent#tileloadstart\n * @api\n */\n TILELOADSTART: 'tileloadstart',\n\n /**\n * Triggered when a tile finishes loading, either when its data is loaded,\n * or when loading was aborted because the tile is no longer needed.\n * @event module:ol/source/Tile.TileSourceEvent#tileloadend\n * @api\n */\n TILELOADEND: 'tileloadend',\n\n /**\n * Triggered if tile loading results in an error.\n * @event module:ol/source/Tile.TileSourceEvent#tileloaderror\n * @api\n */\n TILELOADERROR: 'tileloaderror',\n};\n","/**\n * @module ol/tilegrid/TileGrid\n */\nimport TileRange, {\n createOrUpdate as createOrUpdateTileRange,\n} from '../TileRange.js';\nimport {DEFAULT_TILE_SIZE} from './common.js';\nimport {assert} from '../asserts.js';\nimport {clamp} from '../math.js';\nimport {createOrUpdate, getTopLeft} from '../extent.js';\nimport {createOrUpdate as createOrUpdateTileCoord} from '../tilecoord.js';\nimport {isSorted, linearFindNearest} from '../array.js';\nimport {toSize} from '../size.js';\n\n/**\n * @private\n * @type {import(\"../tilecoord.js\").TileCoord}\n */\nconst tmpTileCoord = [0, 0, 0];\n\n/**\n * @typedef {Object} Options\n * @property {import(\"../extent.js\").Extent} [extent] Extent for the tile grid. No tiles outside this\n * extent will be requested by {@link module:ol/source/Tile} sources. When no `origin` or\n * `origins` are configured, the `origin` will be set to the top-left corner of the extent.\n * @property {number} [minZoom=0] Minimum zoom.\n * @property {import(\"../coordinate.js\").Coordinate} [origin] The tile grid origin, i.e. where the `x`\n * and `y` axes meet (`[z, 0, 0]`). Tile coordinates increase left to right and downwards. If not\n * specified, `extent` or `origins` must be provided.\n * @property {Array<import(\"../coordinate.js\").Coordinate>} [origins] Tile grid origins, i.e. where\n * the `x` and `y` axes meet (`[z, 0, 0]`), for each zoom level. If given, the array length\n * should match the length of the `resolutions` array, i.e. each resolution can have a different\n * origin. Tile coordinates increase left to right and downwards. If not specified, `extent` or\n * `origin` must be provided.\n * @property {!Array<number>} resolutions Resolutions. The array index of each resolution needs\n * to match the zoom level. This means that even if a `minZoom` is configured, the resolutions\n * array will have a length of `maxZoom + 1`.\n * @property {Array<import(\"../size.js\").Size>} [sizes] Number of tile rows and columns\n * of the grid for each zoom level. If specified the values\n * define each zoom level's extent together with the `origin` or `origins`.\n * A grid `extent` can be configured in addition, and will further limit the extent\n * for which tile requests are made by sources. If the bottom-left corner of\n * an extent is used as `origin` or `origins`, then the `y` value must be\n * negative because OpenLayers tile coordinates use the top left as the origin.\n * @property {number|import(\"../size.js\").Size} [tileSize] Tile size.\n * Default is `[256, 256]`.\n * @property {Array<import(\"../size.js\").Size>} [tileSizes] Tile sizes. If given, the array length\n * should match the length of the `resolutions` array, i.e. each resolution can have a different\n * tile size.\n */\n\n/**\n * @classdesc\n * Base class for setting the grid pattern for sources accessing tiled-image\n * servers.\n * @api\n */\nclass TileGrid {\n /**\n * @param {Options} options Tile grid options.\n */\n constructor(options) {\n /**\n * @protected\n * @type {number}\n */\n this.minZoom = options.minZoom !== undefined ? options.minZoom : 0;\n\n /**\n * @private\n * @type {!Array<number>}\n */\n this.resolutions_ = options.resolutions;\n assert(\n isSorted(\n this.resolutions_,\n function (a, b) {\n return b - a;\n },\n true\n ),\n 17\n ); // `resolutions` must be sorted in descending order\n\n // check if we've got a consistent zoom factor and origin\n let zoomFactor;\n if (!options.origins) {\n for (let i = 0, ii = this.resolutions_.length - 1; i < ii; ++i) {\n if (!zoomFactor) {\n zoomFactor = this.resolutions_[i] / this.resolutions_[i + 1];\n } else {\n if (this.resolutions_[i] / this.resolutions_[i + 1] !== zoomFactor) {\n zoomFactor = undefined;\n break;\n }\n }\n }\n }\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.zoomFactor_ = zoomFactor;\n\n /**\n * @protected\n * @type {number}\n */\n this.maxZoom = this.resolutions_.length - 1;\n\n /**\n * @private\n * @type {import(\"../coordinate.js\").Coordinate}\n */\n this.origin_ = options.origin !== undefined ? options.origin : null;\n\n /**\n * @private\n * @type {Array<import(\"../coordinate.js\").Coordinate>}\n */\n this.origins_ = null;\n if (options.origins !== undefined) {\n this.origins_ = options.origins;\n assert(this.origins_.length == this.resolutions_.length, 20); // Number of `origins` and `resolutions` must be equal\n }\n\n const extent = options.extent;\n\n if (extent !== undefined && !this.origin_ && !this.origins_) {\n this.origin_ = getTopLeft(extent);\n }\n\n assert(\n (!this.origin_ && this.origins_) || (this.origin_ && !this.origins_),\n 18\n ); // Either `origin` or `origins` must be configured, never both\n\n /**\n * @private\n * @type {Array<number|import(\"../size.js\").Size>}\n */\n this.tileSizes_ = null;\n if (options.tileSizes !== undefined) {\n this.tileSizes_ = options.tileSizes;\n assert(this.tileSizes_.length == this.resolutions_.length, 19); // Number of `tileSizes` and `resolutions` must be equal\n }\n\n /**\n * @private\n * @type {number|import(\"../size.js\").Size}\n */\n this.tileSize_ =\n options.tileSize !== undefined\n ? options.tileSize\n : !this.tileSizes_\n ? DEFAULT_TILE_SIZE\n : null;\n assert(\n (!this.tileSize_ && this.tileSizes_) ||\n (this.tileSize_ && !this.tileSizes_),\n 22\n ); // Either `tileSize` or `tileSizes` must be configured, never both\n\n /**\n * @private\n * @type {import(\"../extent.js\").Extent}\n */\n this.extent_ = extent !== undefined ? extent : null;\n\n /**\n * @private\n * @type {Array<import(\"../TileRange.js\").default>}\n */\n this.fullTileRanges_ = null;\n\n /**\n * @private\n * @type {import(\"../size.js\").Size}\n */\n this.tmpSize_ = [0, 0];\n\n if (options.sizes !== undefined) {\n this.fullTileRanges_ = options.sizes.map(function (size, z) {\n const tileRange = new TileRange(\n Math.min(0, size[0]),\n Math.max(size[0] - 1, -1),\n Math.min(0, size[1]),\n Math.max(size[1] - 1, -1)\n );\n return tileRange;\n }, this);\n } else if (extent) {\n this.calculateTileRanges_(extent);\n }\n }\n\n /**\n * Call a function with each tile coordinate for a given extent and zoom level.\n *\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @param {number} zoom Integer zoom level.\n * @param {function(import(\"../tilecoord.js\").TileCoord): void} callback Function called with each tile coordinate.\n * @api\n */\n forEachTileCoord(extent, zoom, callback) {\n const tileRange = this.getTileRangeForExtentAndZ(extent, zoom);\n for (let i = tileRange.minX, ii = tileRange.maxX; i <= ii; ++i) {\n for (let j = tileRange.minY, jj = tileRange.maxY; j <= jj; ++j) {\n callback([zoom, i, j]);\n }\n }\n }\n\n /**\n * @param {import(\"../tilecoord.js\").TileCoord} tileCoord Tile coordinate.\n * @param {function(number, import(\"../TileRange.js\").default): boolean} callback Callback.\n * @param {import(\"../TileRange.js\").default=} opt_tileRange Temporary import(\"../TileRange.js\").default object.\n * @param {import(\"../extent.js\").Extent=} opt_extent Temporary import(\"../extent.js\").Extent object.\n * @return {boolean} Callback succeeded.\n */\n forEachTileCoordParentTileRange(\n tileCoord,\n callback,\n opt_tileRange,\n opt_extent\n ) {\n let tileRange, x, y;\n let tileCoordExtent = null;\n let z = tileCoord[0] - 1;\n if (this.zoomFactor_ === 2) {\n x = tileCoord[1];\n y = tileCoord[2];\n } else {\n tileCoordExtent = this.getTileCoordExtent(tileCoord, opt_extent);\n }\n while (z >= this.minZoom) {\n if (this.zoomFactor_ === 2) {\n x = Math.floor(x / 2);\n y = Math.floor(y / 2);\n tileRange = createOrUpdateTileRange(x, x, y, y, opt_tileRange);\n } else {\n tileRange = this.getTileRangeForExtentAndZ(\n tileCoordExtent,\n z,\n opt_tileRange\n );\n }\n if (callback(z, tileRange)) {\n return true;\n }\n --z;\n }\n return false;\n }\n\n /**\n * Get the extent for this tile grid, if it was configured.\n * @return {import(\"../extent.js\").Extent} Extent.\n * @api\n */\n getExtent() {\n return this.extent_;\n }\n\n /**\n * Get the maximum zoom level for the grid.\n * @return {number} Max zoom.\n * @api\n */\n getMaxZoom() {\n return this.maxZoom;\n }\n\n /**\n * Get the minimum zoom level for the grid.\n * @return {number} Min zoom.\n * @api\n */\n getMinZoom() {\n return this.minZoom;\n }\n\n /**\n * Get the origin for the grid at the given zoom level.\n * @param {number} z Integer zoom level.\n * @return {import(\"../coordinate.js\").Coordinate} Origin.\n * @api\n */\n getOrigin(z) {\n if (this.origin_) {\n return this.origin_;\n } else {\n return this.origins_[z];\n }\n }\n\n /**\n * Get the resolution for the given zoom level.\n * @param {number} z Integer zoom level.\n * @return {number} Resolution.\n * @api\n */\n getResolution(z) {\n return this.resolutions_[z];\n }\n\n /**\n * Get the list of resolutions for the tile grid.\n * @return {Array<number>} Resolutions.\n * @api\n */\n getResolutions() {\n return this.resolutions_;\n }\n\n /**\n * @param {import(\"../tilecoord.js\").TileCoord} tileCoord Tile coordinate.\n * @param {import(\"../TileRange.js\").default=} opt_tileRange Temporary import(\"../TileRange.js\").default object.\n * @param {import(\"../extent.js\").Extent=} opt_extent Temporary import(\"../extent.js\").Extent object.\n * @return {import(\"../TileRange.js\").default} Tile range.\n */\n getTileCoordChildTileRange(tileCoord, opt_tileRange, opt_extent) {\n if (tileCoord[0] < this.maxZoom) {\n if (this.zoomFactor_ === 2) {\n const minX = tileCoord[1] * 2;\n const minY = tileCoord[2] * 2;\n return createOrUpdateTileRange(\n minX,\n minX + 1,\n minY,\n minY + 1,\n opt_tileRange\n );\n }\n const tileCoordExtent = this.getTileCoordExtent(tileCoord, opt_extent);\n return this.getTileRangeForExtentAndZ(\n tileCoordExtent,\n tileCoord[0] + 1,\n opt_tileRange\n );\n }\n return null;\n }\n\n /**\n * Get the extent for a tile range.\n * @param {number} z Integer zoom level.\n * @param {import(\"../TileRange.js\").default} tileRange Tile range.\n * @param {import(\"../extent.js\").Extent=} opt_extent Temporary import(\"../extent.js\").Extent object.\n * @return {import(\"../extent.js\").Extent} Extent.\n */\n getTileRangeExtent(z, tileRange, opt_extent) {\n const origin = this.getOrigin(z);\n const resolution = this.getResolution(z);\n const tileSize = toSize(this.getTileSize(z), this.tmpSize_);\n const minX = origin[0] + tileRange.minX * tileSize[0] * resolution;\n const maxX = origin[0] + (tileRange.maxX + 1) * tileSize[0] * resolution;\n const minY = origin[1] + tileRange.minY * tileSize[1] * resolution;\n const maxY = origin[1] + (tileRange.maxY + 1) * tileSize[1] * resolution;\n return createOrUpdate(minX, minY, maxX, maxY, opt_extent);\n }\n\n /**\n * Get a tile range for the given extent and integer zoom level.\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @param {number} z Integer zoom level.\n * @param {import(\"../TileRange.js\").default=} opt_tileRange Temporary tile range object.\n * @return {import(\"../TileRange.js\").default} Tile range.\n */\n getTileRangeForExtentAndZ(extent, z, opt_tileRange) {\n const tileCoord = tmpTileCoord;\n this.getTileCoordForXYAndZ_(extent[0], extent[3], z, false, tileCoord);\n const minX = tileCoord[1];\n const minY = tileCoord[2];\n this.getTileCoordForXYAndZ_(extent[2], extent[1], z, true, tileCoord);\n return createOrUpdateTileRange(\n minX,\n tileCoord[1],\n minY,\n tileCoord[2],\n opt_tileRange\n );\n }\n\n /**\n * @param {import(\"../tilecoord.js\").TileCoord} tileCoord Tile coordinate.\n * @return {import(\"../coordinate.js\").Coordinate} Tile center.\n */\n getTileCoordCenter(tileCoord) {\n const origin = this.getOrigin(tileCoord[0]);\n const resolution = this.getResolution(tileCoord[0]);\n const tileSize = toSize(this.getTileSize(tileCoord[0]), this.tmpSize_);\n return [\n origin[0] + (tileCoord[1] + 0.5) * tileSize[0] * resolution,\n origin[1] - (tileCoord[2] + 0.5) * tileSize[1] * resolution,\n ];\n }\n\n /**\n * Get the extent of a tile coordinate.\n *\n * @param {import(\"../tilecoord.js\").TileCoord} tileCoord Tile coordinate.\n * @param {import(\"../extent.js\").Extent=} opt_extent Temporary extent object.\n * @return {import(\"../extent.js\").Extent} Extent.\n * @api\n */\n getTileCoordExtent(tileCoord, opt_extent) {\n const origin = this.getOrigin(tileCoord[0]);\n const resolution = this.getResolution(tileCoord[0]);\n const tileSize = toSize(this.getTileSize(tileCoord[0]), this.tmpSize_);\n const minX = origin[0] + tileCoord[1] * tileSize[0] * resolution;\n const minY = origin[1] - (tileCoord[2] + 1) * tileSize[1] * resolution;\n const maxX = minX + tileSize[0] * resolution;\n const maxY = minY + tileSize[1] * resolution;\n return createOrUpdate(minX, minY, maxX, maxY, opt_extent);\n }\n\n /**\n * Get the tile coordinate for the given map coordinate and resolution. This\n * method considers that coordinates that intersect tile boundaries should be\n * assigned the higher tile coordinate.\n *\n * @param {import(\"../coordinate.js\").Coordinate} coordinate Coordinate.\n * @param {number} resolution Resolution.\n * @param {import(\"../tilecoord.js\").TileCoord=} opt_tileCoord Destination import(\"../tilecoord.js\").TileCoord object.\n * @return {import(\"../tilecoord.js\").TileCoord} Tile coordinate.\n * @api\n */\n getTileCoordForCoordAndResolution(coordinate, resolution, opt_tileCoord) {\n return this.getTileCoordForXYAndResolution_(\n coordinate[0],\n coordinate[1],\n resolution,\n false,\n opt_tileCoord\n );\n }\n\n /**\n * Note that this method should not be called for resolutions that correspond\n * to an integer zoom level. Instead call the `getTileCoordForXYAndZ_` method.\n * @param {number} x X.\n * @param {number} y Y.\n * @param {number} resolution Resolution (for a non-integer zoom level).\n * @param {boolean} reverseIntersectionPolicy Instead of letting edge\n * intersections go to the higher tile coordinate, let edge intersections\n * go to the lower tile coordinate.\n * @param {import(\"../tilecoord.js\").TileCoord=} opt_tileCoord Temporary import(\"../tilecoord.js\").TileCoord object.\n * @return {import(\"../tilecoord.js\").TileCoord} Tile coordinate.\n * @private\n */\n getTileCoordForXYAndResolution_(\n x,\n y,\n resolution,\n reverseIntersectionPolicy,\n opt_tileCoord\n ) {\n const z = this.getZForResolution(resolution);\n const scale = resolution / this.getResolution(z);\n const origin = this.getOrigin(z);\n const tileSize = toSize(this.getTileSize(z), this.tmpSize_);\n\n const adjustX = reverseIntersectionPolicy ? 0.5 : 0;\n const adjustY = reverseIntersectionPolicy ? 0.5 : 0;\n const xFromOrigin = Math.floor((x - origin[0]) / resolution + adjustX);\n const yFromOrigin = Math.floor((origin[1] - y) / resolution + adjustY);\n let tileCoordX = (scale * xFromOrigin) / tileSize[0];\n let tileCoordY = (scale * yFromOrigin) / tileSize[1];\n\n if (reverseIntersectionPolicy) {\n tileCoordX = Math.ceil(tileCoordX) - 1;\n tileCoordY = Math.ceil(tileCoordY) - 1;\n } else {\n tileCoordX = Math.floor(tileCoordX);\n tileCoordY = Math.floor(tileCoordY);\n }\n\n return createOrUpdateTileCoord(z, tileCoordX, tileCoordY, opt_tileCoord);\n }\n\n /**\n * Although there is repetition between this method and `getTileCoordForXYAndResolution_`,\n * they should have separate implementations. This method is for integer zoom\n * levels. The other method should only be called for resolutions corresponding\n * to non-integer zoom levels.\n * @param {number} x Map x coordinate.\n * @param {number} y Map y coordinate.\n * @param {number} z Integer zoom level.\n * @param {boolean} reverseIntersectionPolicy Instead of letting edge\n * intersections go to the higher tile coordinate, let edge intersections\n * go to the lower tile coordinate.\n * @param {import(\"../tilecoord.js\").TileCoord=} opt_tileCoord Temporary import(\"../tilecoord.js\").TileCoord object.\n * @return {import(\"../tilecoord.js\").TileCoord} Tile coordinate.\n * @private\n */\n getTileCoordForXYAndZ_(x, y, z, reverseIntersectionPolicy, opt_tileCoord) {\n const origin = this.getOrigin(z);\n const resolution = this.getResolution(z);\n const tileSize = toSize(this.getTileSize(z), this.tmpSize_);\n\n const adjustX = reverseIntersectionPolicy ? 0.5 : 0;\n const adjustY = reverseIntersectionPolicy ? 0.5 : 0;\n const xFromOrigin = Math.floor((x - origin[0]) / resolution + adjustX);\n const yFromOrigin = Math.floor((origin[1] - y) / resolution + adjustY);\n let tileCoordX = xFromOrigin / tileSize[0];\n let tileCoordY = yFromOrigin / tileSize[1];\n\n if (reverseIntersectionPolicy) {\n tileCoordX = Math.ceil(tileCoordX) - 1;\n tileCoordY = Math.ceil(tileCoordY) - 1;\n } else {\n tileCoordX = Math.floor(tileCoordX);\n tileCoordY = Math.floor(tileCoordY);\n }\n\n return createOrUpdateTileCoord(z, tileCoordX, tileCoordY, opt_tileCoord);\n }\n\n /**\n * Get a tile coordinate given a map coordinate and zoom level.\n * @param {import(\"../coordinate.js\").Coordinate} coordinate Coordinate.\n * @param {number} z Zoom level.\n * @param {import(\"../tilecoord.js\").TileCoord=} opt_tileCoord Destination import(\"../tilecoord.js\").TileCoord object.\n * @return {import(\"../tilecoord.js\").TileCoord} Tile coordinate.\n * @api\n */\n getTileCoordForCoordAndZ(coordinate, z, opt_tileCoord) {\n return this.getTileCoordForXYAndZ_(\n coordinate[0],\n coordinate[1],\n z,\n false,\n opt_tileCoord\n );\n }\n\n /**\n * @param {import(\"../tilecoord.js\").TileCoord} tileCoord Tile coordinate.\n * @return {number} Tile resolution.\n */\n getTileCoordResolution(tileCoord) {\n return this.resolutions_[tileCoord[0]];\n }\n\n /**\n * Get the tile size for a zoom level. The type of the return value matches the\n * `tileSize` or `tileSizes` that the tile grid was configured with. To always\n * get an `import(\"../size.js\").Size`, run the result through `import(\"../size.js\").Size.toSize()`.\n * @param {number} z Z.\n * @return {number|import(\"../size.js\").Size} Tile size.\n * @api\n */\n getTileSize(z) {\n if (this.tileSize_) {\n return this.tileSize_;\n } else {\n return this.tileSizes_[z];\n }\n }\n\n /**\n * @param {number} z Zoom level.\n * @return {import(\"../TileRange.js\").default} Extent tile range for the specified zoom level.\n */\n getFullTileRange(z) {\n if (!this.fullTileRanges_) {\n return null;\n } else {\n return this.fullTileRanges_[z];\n }\n }\n\n /**\n * @param {number} resolution Resolution.\n * @param {number=} opt_direction If 0, the nearest resolution will be used.\n * If 1, the nearest lower resolution will be used. If -1, the nearest\n * higher resolution will be used. Default is 0.\n * @return {number} Z.\n * @api\n */\n getZForResolution(resolution, opt_direction) {\n const z = linearFindNearest(\n this.resolutions_,\n resolution,\n opt_direction || 0\n );\n return clamp(z, this.minZoom, this.maxZoom);\n }\n\n /**\n * @param {!import(\"../extent.js\").Extent} extent Extent for this tile grid.\n * @private\n */\n calculateTileRanges_(extent) {\n const length = this.resolutions_.length;\n const fullTileRanges = new Array(length);\n for (let z = this.minZoom; z < length; ++z) {\n fullTileRanges[z] = this.getTileRangeForExtentAndZ(extent, z);\n }\n this.fullTileRanges_ = fullTileRanges;\n }\n}\n\nexport default TileGrid;\n","/**\n * @module ol/tilegrid\n */\nimport Corner from './extent/Corner.js';\nimport TileGrid from './tilegrid/TileGrid.js';\nimport Units from './proj/Units.js';\nimport {DEFAULT_MAX_ZOOM, DEFAULT_TILE_SIZE} from './tilegrid/common.js';\nimport {METERS_PER_UNIT, get as getProjection} from './proj.js';\nimport {\n containsCoordinate,\n createOrUpdate,\n getCorner,\n getHeight,\n getWidth,\n} from './extent.js';\nimport {toSize} from './size.js';\n\n/**\n * @param {import(\"./proj/Projection.js\").default} projection Projection.\n * @return {!TileGrid} Default tile grid for the\n * passed projection.\n */\nexport function getForProjection(projection) {\n let tileGrid = projection.getDefaultTileGrid();\n if (!tileGrid) {\n tileGrid = createForProjection(projection);\n projection.setDefaultTileGrid(tileGrid);\n }\n return tileGrid;\n}\n\n/**\n * @param {TileGrid} tileGrid Tile grid.\n * @param {import(\"./tilecoord.js\").TileCoord} tileCoord Tile coordinate.\n * @param {import(\"./proj/Projection.js\").default} projection Projection.\n * @return {import(\"./tilecoord.js\").TileCoord} Tile coordinate.\n */\nexport function wrapX(tileGrid, tileCoord, projection) {\n const z = tileCoord[0];\n const center = tileGrid.getTileCoordCenter(tileCoord);\n const projectionExtent = extentFromProjection(projection);\n if (!containsCoordinate(projectionExtent, center)) {\n const worldWidth = getWidth(projectionExtent);\n const worldsAway = Math.ceil(\n (projectionExtent[0] - center[0]) / worldWidth\n );\n center[0] += worldWidth * worldsAway;\n return tileGrid.getTileCoordForCoordAndZ(center, z);\n } else {\n return tileCoord;\n }\n}\n\n/**\n * @param {import(\"./extent.js\").Extent} extent Extent.\n * @param {number=} opt_maxZoom Maximum zoom level (default is\n * DEFAULT_MAX_ZOOM).\n * @param {number|import(\"./size.js\").Size=} opt_tileSize Tile size (default uses\n * DEFAULT_TILE_SIZE).\n * @param {import(\"./extent/Corner.js\").default=} opt_corner Extent corner (default is `'top-left'`).\n * @return {!TileGrid} TileGrid instance.\n */\nexport function createForExtent(extent, opt_maxZoom, opt_tileSize, opt_corner) {\n const corner = opt_corner !== undefined ? opt_corner : Corner.TOP_LEFT;\n\n const resolutions = resolutionsFromExtent(extent, opt_maxZoom, opt_tileSize);\n\n return new TileGrid({\n extent: extent,\n origin: getCorner(extent, corner),\n resolutions: resolutions,\n tileSize: opt_tileSize,\n });\n}\n\n/**\n * @typedef {Object} XYZOptions\n * @property {import(\"./extent.js\").Extent} [extent] Extent for the tile grid. The origin for an XYZ tile grid is the\n * top-left corner of the extent. If `maxResolution` is not provided the zero level of the grid is defined by the resolution\n * at which one tile fits in the provided extent. If not provided, the extent of the EPSG:3857 projection is used.\n * @property {number} [maxResolution] Resolution at level zero.\n * @property {number} [maxZoom] Maximum zoom. The default is `42`. This determines the number of levels\n * in the grid set. For example, a `maxZoom` of 21 means there are 22 levels in the grid set.\n * @property {number} [minZoom=0] Minimum zoom.\n * @property {number|import(\"./size.js\").Size} [tileSize=[256, 256]] Tile size in pixels.\n */\n\n/**\n * Creates a tile grid with a standard XYZ tiling scheme.\n * @param {XYZOptions=} opt_options Tile grid options.\n * @return {!TileGrid} Tile grid instance.\n * @api\n */\nexport function createXYZ(opt_options) {\n const xyzOptions = opt_options || {};\n\n const extent = xyzOptions.extent || getProjection('EPSG:3857').getExtent();\n\n const gridOptions = {\n extent: extent,\n minZoom: xyzOptions.minZoom,\n tileSize: xyzOptions.tileSize,\n resolutions: resolutionsFromExtent(\n extent,\n xyzOptions.maxZoom,\n xyzOptions.tileSize,\n xyzOptions.maxResolution\n ),\n };\n return new TileGrid(gridOptions);\n}\n\n/**\n * Create a resolutions array from an extent. A zoom factor of 2 is assumed.\n * @param {import(\"./extent.js\").Extent} extent Extent.\n * @param {number=} opt_maxZoom Maximum zoom level (default is\n * DEFAULT_MAX_ZOOM).\n * @param {number|import(\"./size.js\").Size=} opt_tileSize Tile size (default uses\n * DEFAULT_TILE_SIZE).\n * @param {number=} opt_maxResolution Resolution at level zero.\n * @return {!Array<number>} Resolutions array.\n */\nfunction resolutionsFromExtent(\n extent,\n opt_maxZoom,\n opt_tileSize,\n opt_maxResolution\n) {\n const maxZoom = opt_maxZoom !== undefined ? opt_maxZoom : DEFAULT_MAX_ZOOM;\n\n const height = getHeight(extent);\n const width = getWidth(extent);\n\n const tileSize = toSize(\n opt_tileSize !== undefined ? opt_tileSize : DEFAULT_TILE_SIZE\n );\n const maxResolution =\n opt_maxResolution > 0\n ? opt_maxResolution\n : Math.max(width / tileSize[0], height / tileSize[1]);\n\n const length = maxZoom + 1;\n const resolutions = new Array(length);\n for (let z = 0; z < length; ++z) {\n resolutions[z] = maxResolution / Math.pow(2, z);\n }\n return resolutions;\n}\n\n/**\n * @param {import(\"./proj.js\").ProjectionLike} projection Projection.\n * @param {number=} opt_maxZoom Maximum zoom level (default is\n * DEFAULT_MAX_ZOOM).\n * @param {number|import(\"./size.js\").Size=} opt_tileSize Tile size (default uses\n * DEFAULT_TILE_SIZE).\n * @param {import(\"./extent/Corner.js\").default=} opt_corner Extent corner (default is `'top-left'`).\n * @return {!TileGrid} TileGrid instance.\n */\nexport function createForProjection(\n projection,\n opt_maxZoom,\n opt_tileSize,\n opt_corner\n) {\n const extent = extentFromProjection(projection);\n return createForExtent(extent, opt_maxZoom, opt_tileSize, opt_corner);\n}\n\n/**\n * Generate a tile grid extent from a projection. If the projection has an\n * extent, it is used. If not, a global extent is assumed.\n * @param {import(\"./proj.js\").ProjectionLike} projection Projection.\n * @return {import(\"./extent.js\").Extent} Extent.\n */\nexport function extentFromProjection(projection) {\n projection = getProjection(projection);\n let extent = projection.getExtent();\n if (!extent) {\n const half =\n (180 * METERS_PER_UNIT[Units.DEGREES]) / projection.getMetersPerUnit();\n extent = createOrUpdate(-half, -half, half, half);\n }\n return extent;\n}\n","/**\n * @module ol/source/Tile\n */\nimport Event from '../events/Event.js';\nimport Source from './Source.js';\nimport TileCache from '../TileCache.js';\nimport TileState from '../TileState.js';\nimport {abstract} from '../util.js';\nimport {equivalent} from '../proj.js';\nimport {getKeyZXY, withinExtentAndZ} from '../tilecoord.js';\nimport {\n getForProjection as getTileGridForProjection,\n wrapX,\n} from '../tilegrid.js';\nimport {scale as scaleSize, toSize} from '../size.js';\n\n/**\n * @typedef {Object} Options\n * @property {import(\"./Source.js\").AttributionLike} [attributions]\n * @property {boolean} [attributionsCollapsible=true] Attributions are collapsible.\n * @property {number} [cacheSize]\n * @property {boolean} [opaque=false] Whether the layer is opaque.\n * @property {number} [tilePixelRatio]\n * @property {import(\"../proj.js\").ProjectionLike} [projection]\n * @property {import(\"./State.js\").default} [state]\n * @property {import(\"../tilegrid/TileGrid.js\").default} [tileGrid]\n * @property {boolean} [wrapX=true]\n * @property {number} [transition]\n * @property {string} [key]\n * @property {number} [zDirection=0]\n */\n\n/**\n * @classdesc\n * Abstract base class; normally only used for creating subclasses and not\n * instantiated in apps.\n * Base class for sources providing images divided into a tile grid.\n * @abstract\n * @api\n */\nclass TileSource extends Source {\n /**\n * @param {Options} options SourceTile source options.\n */\n constructor(options) {\n super({\n attributions: options.attributions,\n attributionsCollapsible: options.attributionsCollapsible,\n projection: options.projection,\n state: options.state,\n wrapX: options.wrapX,\n });\n\n /**\n * @private\n * @type {boolean}\n */\n this.opaque_ = options.opaque !== undefined ? options.opaque : false;\n\n /**\n * @private\n * @type {number}\n */\n this.tilePixelRatio_ =\n options.tilePixelRatio !== undefined ? options.tilePixelRatio : 1;\n\n /**\n * @protected\n * @type {import(\"../tilegrid/TileGrid.js\").default}\n */\n this.tileGrid = options.tileGrid !== undefined ? options.tileGrid : null;\n\n const tileSize = [256, 256];\n const tileGrid = options.tileGrid;\n if (tileGrid) {\n toSize(tileGrid.getTileSize(tileGrid.getMinZoom()), tileSize);\n }\n\n /**\n * @protected\n * @type {import(\"../TileCache.js\").default}\n */\n this.tileCache = new TileCache(options.cacheSize || 0);\n\n /**\n * @protected\n * @type {import(\"../size.js\").Size}\n */\n this.tmpSize = [0, 0];\n\n /**\n * @private\n * @type {string}\n */\n this.key_ = options.key || '';\n\n /**\n * @protected\n * @type {import(\"../Tile.js\").Options}\n */\n this.tileOptions = {transition: options.transition};\n\n /**\n * zDirection hint, read by the renderer. Indicates which resolution should be used\n * by a renderer if the views resolution does not match any resolution of the tile source.\n * If 0, the nearest resolution will be used. If 1, the nearest lower resolution\n * will be used. If -1, the nearest higher resolution will be used.\n * @type {number}\n */\n this.zDirection = options.zDirection ? options.zDirection : 0;\n }\n\n /**\n * @return {boolean} Can expire cache.\n */\n canExpireCache() {\n return this.tileCache.canExpireCache();\n }\n\n /**\n * @param {import(\"../proj/Projection.js\").default} projection Projection.\n * @param {!Object<string, boolean>} usedTiles Used tiles.\n */\n expireCache(projection, usedTiles) {\n const tileCache = this.getTileCacheForProjection(projection);\n if (tileCache) {\n tileCache.expireCache(usedTiles);\n }\n }\n\n /**\n * @param {import(\"../proj/Projection.js\").default} projection Projection.\n * @param {number} z Zoom level.\n * @param {import(\"../TileRange.js\").default} tileRange Tile range.\n * @param {function(import(\"../Tile.js\").default):(boolean|void)} callback Called with each\n * loaded tile. If the callback returns `false`, the tile will not be\n * considered loaded.\n * @return {boolean} The tile range is fully covered with loaded tiles.\n */\n forEachLoadedTile(projection, z, tileRange, callback) {\n const tileCache = this.getTileCacheForProjection(projection);\n if (!tileCache) {\n return false;\n }\n\n let covered = true;\n let tile, tileCoordKey, loaded;\n for (let x = tileRange.minX; x <= tileRange.maxX; ++x) {\n for (let y = tileRange.minY; y <= tileRange.maxY; ++y) {\n tileCoordKey = getKeyZXY(z, x, y);\n loaded = false;\n if (tileCache.containsKey(tileCoordKey)) {\n tile = /** @type {!import(\"../Tile.js\").default} */ (tileCache.get(\n tileCoordKey\n ));\n loaded = tile.getState() === TileState.LOADED;\n if (loaded) {\n loaded = callback(tile) !== false;\n }\n }\n if (!loaded) {\n covered = false;\n }\n }\n }\n return covered;\n }\n\n /**\n * @param {import(\"../proj/Projection.js\").default} projection Projection.\n * @return {number} Gutter.\n */\n getGutterForProjection(projection) {\n return 0;\n }\n\n /**\n * Return the key to be used for all tiles in the source.\n * @return {string} The key for all tiles.\n * @protected\n */\n getKey() {\n return this.key_;\n }\n\n /**\n * Set the value to be used as the key for all tiles in the source.\n * @param {string} key The key for tiles.\n * @protected\n */\n setKey(key) {\n if (this.key_ !== key) {\n this.key_ = key;\n this.changed();\n }\n }\n\n /**\n * @param {import(\"../proj/Projection.js\").default} projection Projection.\n * @return {boolean} Opaque.\n */\n getOpaque(projection) {\n return this.opaque_;\n }\n\n /**\n * @return {Array<number>} Resolutions.\n */\n getResolutions() {\n return this.tileGrid.getResolutions();\n }\n\n /**\n * @abstract\n * @param {number} z Tile coordinate z.\n * @param {number} x Tile coordinate x.\n * @param {number} y Tile coordinate y.\n * @param {number} pixelRatio Pixel ratio.\n * @param {import(\"../proj/Projection.js\").default} projection Projection.\n * @return {!import(\"../Tile.js\").default} Tile.\n */\n getTile(z, x, y, pixelRatio, projection) {\n return abstract();\n }\n\n /**\n * Return the tile grid of the tile source.\n * @return {import(\"../tilegrid/TileGrid.js\").default} Tile grid.\n * @api\n */\n getTileGrid() {\n return this.tileGrid;\n }\n\n /**\n * @param {import(\"../proj/Projection.js\").default} projection Projection.\n * @return {!import(\"../tilegrid/TileGrid.js\").default} Tile grid.\n */\n getTileGridForProjection(projection) {\n if (!this.tileGrid) {\n return getTileGridForProjection(projection);\n } else {\n return this.tileGrid;\n }\n }\n\n /**\n * @param {import(\"../proj/Projection.js\").default} projection Projection.\n * @return {import(\"../TileCache.js\").default} Tile cache.\n * @protected\n */\n getTileCacheForProjection(projection) {\n const thisProj = this.getProjection();\n if (thisProj && !equivalent(thisProj, projection)) {\n return null;\n } else {\n return this.tileCache;\n }\n }\n\n /**\n * Get the tile pixel ratio for this source. Subclasses may override this\n * method, which is meant to return a supported pixel ratio that matches the\n * provided `pixelRatio` as close as possible.\n * @param {number} pixelRatio Pixel ratio.\n * @return {number} Tile pixel ratio.\n */\n getTilePixelRatio(pixelRatio) {\n return this.tilePixelRatio_;\n }\n\n /**\n * @param {number} z Z.\n * @param {number} pixelRatio Pixel ratio.\n * @param {import(\"../proj/Projection.js\").default} projection Projection.\n * @return {import(\"../size.js\").Size} Tile size.\n */\n getTilePixelSize(z, pixelRatio, projection) {\n const tileGrid = this.getTileGridForProjection(projection);\n const tilePixelRatio = this.getTilePixelRatio(pixelRatio);\n const tileSize = toSize(tileGrid.getTileSize(z), this.tmpSize);\n if (tilePixelRatio == 1) {\n return tileSize;\n } else {\n return scaleSize(tileSize, tilePixelRatio, this.tmpSize);\n }\n }\n\n /**\n * Returns a tile coordinate wrapped around the x-axis. When the tile coordinate\n * is outside the resolution and extent range of the tile grid, `null` will be\n * returned.\n * @param {import(\"../tilecoord.js\").TileCoord} tileCoord Tile coordinate.\n * @param {import(\"../proj/Projection.js\").default=} opt_projection Projection.\n * @return {import(\"../tilecoord.js\").TileCoord} Tile coordinate to be passed to the tileUrlFunction or\n * null if no tile URL should be created for the passed `tileCoord`.\n */\n getTileCoordForTileUrlFunction(tileCoord, opt_projection) {\n const projection =\n opt_projection !== undefined ? opt_projection : this.getProjection();\n const tileGrid = this.getTileGridForProjection(projection);\n if (this.getWrapX() && projection.isGlobal()) {\n tileCoord = wrapX(tileGrid, tileCoord, projection);\n }\n return withinExtentAndZ(tileCoord, tileGrid) ? tileCoord : null;\n }\n\n /**\n * Remove all cached tiles from the source. The next render cycle will fetch new tiles.\n * @api\n */\n clear() {\n this.tileCache.clear();\n }\n\n refresh() {\n this.clear();\n super.refresh();\n }\n\n /**\n * Increases the cache size if needed\n * @param {number} tileCount Minimum number of tiles needed.\n * @param {import(\"../proj/Projection.js\").default} projection Projection.\n */\n updateCacheSize(tileCount, projection) {\n const tileCache = this.getTileCacheForProjection(projection);\n if (tileCount > tileCache.highWaterMark) {\n tileCache.highWaterMark = tileCount;\n }\n }\n\n /**\n * Marks a tile coord as being used, without triggering a load.\n * @abstract\n * @param {number} z Tile coordinate z.\n * @param {number} x Tile coordinate x.\n * @param {number} y Tile coordinate y.\n * @param {import(\"../proj/Projection.js\").default} projection Projection.\n */\n useTile(z, x, y, projection) {}\n}\n\n/**\n * @classdesc\n * Events emitted by {@link module:ol/source/Tile~TileSource} instances are instances of this\n * type.\n */\nexport class TileSourceEvent extends Event {\n /**\n * @param {string} type Type.\n * @param {import(\"../Tile.js\").default} tile The tile.\n */\n constructor(type, tile) {\n super(type);\n\n /**\n * The tile related to the event.\n * @type {import(\"../Tile.js\").default}\n * @api\n */\n this.tile = tile;\n }\n}\n\nexport default TileSource;\n","/**\n * @module ol/tileurlfunction\n */\nimport {assert} from './asserts.js';\nimport {modulo} from './math.js';\nimport {hash as tileCoordHash} from './tilecoord.js';\n\n/**\n * @param {string} template Template.\n * @param {import(\"./tilegrid/TileGrid.js\").default} tileGrid Tile grid.\n * @return {import(\"./Tile.js\").UrlFunction} Tile URL function.\n */\nexport function createFromTemplate(template, tileGrid) {\n const zRegEx = /\\{z\\}/g;\n const xRegEx = /\\{x\\}/g;\n const yRegEx = /\\{y\\}/g;\n const dashYRegEx = /\\{-y\\}/g;\n return (\n /**\n * @param {import(\"./tilecoord.js\").TileCoord} tileCoord Tile Coordinate.\n * @param {number} pixelRatio Pixel ratio.\n * @param {import(\"./proj/Projection.js\").default} projection Projection.\n * @return {string|undefined} Tile URL.\n */\n function (tileCoord, pixelRatio, projection) {\n if (!tileCoord) {\n return undefined;\n } else {\n return template\n .replace(zRegEx, tileCoord[0].toString())\n .replace(xRegEx, tileCoord[1].toString())\n .replace(yRegEx, tileCoord[2].toString())\n .replace(dashYRegEx, function () {\n const z = tileCoord[0];\n const range = tileGrid.getFullTileRange(z);\n assert(range, 55); // The {-y} placeholder requires a tile grid with extent\n const y = range.getHeight() - tileCoord[2] - 1;\n return y.toString();\n });\n }\n }\n );\n}\n\n/**\n * @param {Array<string>} templates Templates.\n * @param {import(\"./tilegrid/TileGrid.js\").default} tileGrid Tile grid.\n * @return {import(\"./Tile.js\").UrlFunction} Tile URL function.\n */\nexport function createFromTemplates(templates, tileGrid) {\n const len = templates.length;\n const tileUrlFunctions = new Array(len);\n for (let i = 0; i < len; ++i) {\n tileUrlFunctions[i] = createFromTemplate(templates[i], tileGrid);\n }\n return createFromTileUrlFunctions(tileUrlFunctions);\n}\n\n/**\n * @param {Array<import(\"./Tile.js\").UrlFunction>} tileUrlFunctions Tile URL Functions.\n * @return {import(\"./Tile.js\").UrlFunction} Tile URL function.\n */\nexport function createFromTileUrlFunctions(tileUrlFunctions) {\n if (tileUrlFunctions.length === 1) {\n return tileUrlFunctions[0];\n }\n return (\n /**\n * @param {import(\"./tilecoord.js\").TileCoord} tileCoord Tile Coordinate.\n * @param {number} pixelRatio Pixel ratio.\n * @param {import(\"./proj/Projection.js\").default} projection Projection.\n * @return {string|undefined} Tile URL.\n */\n function (tileCoord, pixelRatio, projection) {\n if (!tileCoord) {\n return undefined;\n } else {\n const h = tileCoordHash(tileCoord);\n const index = modulo(h, tileUrlFunctions.length);\n return tileUrlFunctions[index](tileCoord, pixelRatio, projection);\n }\n }\n );\n}\n\n/**\n * @param {import(\"./tilecoord.js\").TileCoord} tileCoord Tile coordinate.\n * @param {number} pixelRatio Pixel ratio.\n * @param {import(\"./proj/Projection.js\").default} projection Projection.\n * @return {string|undefined} Tile URL.\n */\nexport function nullTileUrlFunction(tileCoord, pixelRatio, projection) {\n return undefined;\n}\n\n/**\n * @param {string} url URL.\n * @return {Array<string>} Array of urls.\n */\nexport function expandUrl(url) {\n const urls = [];\n let match = /\\{([a-z])-([a-z])\\}/.exec(url);\n if (match) {\n // char range\n const startCharCode = match[1].charCodeAt(0);\n const stopCharCode = match[2].charCodeAt(0);\n let charCode;\n for (charCode = startCharCode; charCode <= stopCharCode; ++charCode) {\n urls.push(url.replace(match[0], String.fromCharCode(charCode)));\n }\n return urls;\n }\n match = /\\{(\\d+)-(\\d+)\\}/.exec(url);\n if (match) {\n // number range\n const stop = parseInt(match[2], 10);\n for (let i = parseInt(match[1], 10); i <= stop; i++) {\n urls.push(url.replace(match[0], i.toString()));\n }\n return urls;\n }\n urls.push(url);\n return urls;\n}\n","/**\n * @module ol/source/UrlTile\n */\nimport TileEventType from './TileEventType.js';\nimport TileSource, {TileSourceEvent} from './Tile.js';\nimport TileState from '../TileState.js';\nimport {createFromTemplates, expandUrl} from '../tileurlfunction.js';\nimport {getKeyZXY} from '../tilecoord.js';\nimport {getUid} from '../util.js';\n\n/**\n * @typedef {Object} Options\n * @property {import(\"./Source.js\").AttributionLike} [attributions]\n * @property {boolean} [attributionsCollapsible=true] Attributions are collapsible.\n * @property {number} [cacheSize]\n * @property {boolean} [opaque=false] Whether the layer is opaque.\n * @property {import(\"../proj.js\").ProjectionLike} [projection]\n * @property {import(\"./State.js\").default} [state]\n * @property {import(\"../tilegrid/TileGrid.js\").default} [tileGrid]\n * @property {import(\"../Tile.js\").LoadFunction} tileLoadFunction\n * @property {number} [tilePixelRatio]\n * @property {import(\"../Tile.js\").UrlFunction} [tileUrlFunction]\n * @property {string} [url]\n * @property {Array<string>} [urls]\n * @property {boolean} [wrapX=true]\n * @property {number} [transition]\n * @property {string} [key]\n * @property {number} [zDirection=0]\n */\n\n/**\n * @classdesc\n * Base class for sources providing tiles divided into a tile grid over http.\n *\n * @fires import(\"./Tile.js\").TileSourceEvent\n */\nclass UrlTile extends TileSource {\n /**\n * @param {Options} options Image tile options.\n */\n constructor(options) {\n super({\n attributions: options.attributions,\n cacheSize: options.cacheSize,\n opaque: options.opaque,\n projection: options.projection,\n state: options.state,\n tileGrid: options.tileGrid,\n tilePixelRatio: options.tilePixelRatio,\n wrapX: options.wrapX,\n transition: options.transition,\n key: options.key,\n attributionsCollapsible: options.attributionsCollapsible,\n zDirection: options.zDirection,\n });\n\n /**\n * @private\n * @type {boolean}\n */\n this.generateTileUrlFunction_ =\n this.tileUrlFunction === UrlTile.prototype.tileUrlFunction;\n\n /**\n * @protected\n * @type {import(\"../Tile.js\").LoadFunction}\n */\n this.tileLoadFunction = options.tileLoadFunction;\n\n if (options.tileUrlFunction) {\n this.tileUrlFunction = options.tileUrlFunction.bind(this);\n }\n\n /**\n * @protected\n * @type {!Array<string>|null}\n */\n this.urls = null;\n\n if (options.urls) {\n this.setUrls(options.urls);\n } else if (options.url) {\n this.setUrl(options.url);\n }\n\n /**\n * @private\n * @type {!Object<string, boolean>}\n */\n this.tileLoadingKeys_ = {};\n }\n\n /**\n * Return the tile load function of the source.\n * @return {import(\"../Tile.js\").LoadFunction} TileLoadFunction\n * @api\n */\n getTileLoadFunction() {\n return this.tileLoadFunction;\n }\n\n /**\n * Return the tile URL function of the source.\n * @return {import(\"../Tile.js\").UrlFunction} TileUrlFunction\n * @api\n */\n getTileUrlFunction() {\n return this.tileUrlFunction;\n }\n\n /**\n * Return the URLs used for this source.\n * When a tileUrlFunction is used instead of url or urls,\n * null will be returned.\n * @return {!Array<string>|null} URLs.\n * @api\n */\n getUrls() {\n return this.urls;\n }\n\n /**\n * Handle tile change events.\n * @param {import(\"../events/Event.js\").default} event Event.\n * @protected\n */\n handleTileChange(event) {\n const tile = /** @type {import(\"../Tile.js\").default} */ (event.target);\n const uid = getUid(tile);\n const tileState = tile.getState();\n let type;\n if (tileState == TileState.LOADING) {\n this.tileLoadingKeys_[uid] = true;\n type = TileEventType.TILELOADSTART;\n } else if (uid in this.tileLoadingKeys_) {\n delete this.tileLoadingKeys_[uid];\n type =\n tileState == TileState.ERROR\n ? TileEventType.TILELOADERROR\n : tileState == TileState.LOADED\n ? TileEventType.TILELOADEND\n : undefined;\n }\n if (type != undefined) {\n this.dispatchEvent(new TileSourceEvent(type, tile));\n }\n }\n\n /**\n * Set the tile load function of the source.\n * @param {import(\"../Tile.js\").LoadFunction} tileLoadFunction Tile load function.\n * @api\n */\n setTileLoadFunction(tileLoadFunction) {\n this.tileCache.clear();\n this.tileLoadFunction = tileLoadFunction;\n this.changed();\n }\n\n /**\n * Set the tile URL function of the source.\n * @param {import(\"../Tile.js\").UrlFunction} tileUrlFunction Tile URL function.\n * @param {string=} key Optional new tile key for the source.\n * @api\n */\n setTileUrlFunction(tileUrlFunction, key) {\n this.tileUrlFunction = tileUrlFunction;\n this.tileCache.pruneExceptNewestZ();\n if (typeof key !== 'undefined') {\n this.setKey(key);\n } else {\n this.changed();\n }\n }\n\n /**\n * Set the URL to use for requests.\n * @param {string} url URL.\n * @api\n */\n setUrl(url) {\n const urls = expandUrl(url);\n this.urls = urls;\n this.setUrls(urls);\n }\n\n /**\n * Set the URLs to use for requests.\n * @param {Array<string>} urls URLs.\n * @api\n */\n setUrls(urls) {\n this.urls = urls;\n const key = urls.join('\\n');\n if (this.generateTileUrlFunction_) {\n this.setTileUrlFunction(createFromTemplates(urls, this.tileGrid), key);\n } else {\n this.setKey(key);\n }\n }\n\n /**\n * @param {import(\"../tilecoord.js\").TileCoord} tileCoord Tile coordinate.\n * @param {number} pixelRatio Pixel ratio.\n * @param {import(\"../proj/Projection.js\").default} projection Projection.\n * @return {string|undefined} Tile URL.\n */\n tileUrlFunction(tileCoord, pixelRatio, projection) {\n return undefined;\n }\n\n /**\n * Marks a tile coord as being used, without triggering a load.\n * @param {number} z Tile coordinate z.\n * @param {number} x Tile coordinate x.\n * @param {number} y Tile coordinate y.\n */\n useTile(z, x, y) {\n const tileCoordKey = getKeyZXY(z, x, y);\n if (this.tileCache.containsKey(tileCoordKey)) {\n this.tileCache.get(tileCoordKey);\n }\n }\n}\n\nexport default UrlTile;\n","/**\n * @module ol/source/TileImage\n */\nimport EventType from '../events/EventType.js';\nimport ImageTile from '../ImageTile.js';\nimport ReprojTile from '../reproj/Tile.js';\nimport TileCache from '../TileCache.js';\nimport TileState from '../TileState.js';\nimport UrlTile from './UrlTile.js';\nimport {ENABLE_RASTER_REPROJECTION} from '../reproj/common.js';\nimport {IMAGE_SMOOTHING_DISABLED} from './common.js';\nimport {equivalent, get as getProjection} from '../proj.js';\nimport {getKey, getKeyZXY} from '../tilecoord.js';\nimport {getForProjection as getTileGridForProjection} from '../tilegrid.js';\nimport {getUid} from '../util.js';\n\n/**\n * @typedef {Object} Options\n * @property {import(\"./Source.js\").AttributionLike} [attributions] Attributions.\n * @property {boolean} [attributionsCollapsible=true] Attributions are collapsible.\n * @property {number} [cacheSize] Initial tile cache size. Will auto-grow to hold at least the number of tiles in the viewport.\n * @property {null|string} [crossOrigin] The `crossOrigin` attribute for loaded images. Note that\n * you must provide a `crossOrigin` value if you want to access pixel data with the Canvas renderer.\n * See https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_enabled_image for more detail.\n * @property {boolean} [imageSmoothing=true] Enable image smoothing.\n * @property {boolean} [opaque=false] Whether the layer is opaque.\n * @property {import(\"../proj.js\").ProjectionLike} [projection] Projection. Default is the view projection.\n * @property {number} [reprojectionErrorThreshold=0.5] Maximum allowed reprojection error (in pixels).\n * Higher values can increase reprojection performance, but decrease precision.\n * @property {import(\"./State.js\").default} [state] Source state.\n * @property {typeof import(\"../ImageTile.js\").default} [tileClass] Class used to instantiate image tiles.\n * Default is {@link module:ol/ImageTile~ImageTile}.\n * @property {import(\"../tilegrid/TileGrid.js\").default} [tileGrid] Tile grid.\n * @property {import(\"../Tile.js\").LoadFunction} [tileLoadFunction] Optional function to load a tile given a URL. The default is\n * ```js\n * function(imageTile, src) {\n * imageTile.getImage().src = src;\n * };\n * ```\n * @property {number} [tilePixelRatio=1] The pixel ratio used by the tile service. For example, if the tile\n * service advertizes 256px by 256px tiles but actually sends 512px\n * by 512px images (for retina/hidpi devices) then `tilePixelRatio`\n * should be set to `2`.\n * @property {import(\"../Tile.js\").UrlFunction} [tileUrlFunction] Optional function to get tile URL given a tile coordinate and the projection.\n * @property {string} [url] URL template. Must include `{x}`, `{y}` or `{-y}`, and `{z}` placeholders.\n * A `{?-?}` template pattern, for example `subdomain{a-f}.domain.com`, may be\n * used instead of defining each one separately in the `urls` option.\n * @property {Array<string>} [urls] An array of URL templates.\n * @property {boolean} [wrapX] Whether to wrap the world horizontally. The default, is to\n * request out-of-bounds tiles from the server. When set to `false`, only one\n * world will be rendered. When set to `true`, tiles will be requested for one\n * world only, but they will be wrapped horizontally to render multiple worlds.\n * @property {number} [transition] Duration of the opacity transition for rendering.\n * To disable the opacity transition, pass `transition: 0`.\n * @property {string} [key] Optional tile key for proper cache fetching\n * @property {number} [zDirection=0] Indicate which resolution should be used\n * by a renderer if the view resolution does not match any resolution of the tile source.\n * If 0, the nearest resolution will be used. If 1, the nearest lower resolution\n * will be used. If -1, the nearest higher resolution will be used.\n */\n\n/**\n * @classdesc\n * Base class for sources providing images divided into a tile grid.\n *\n * @fires import(\"./Tile.js\").TileSourceEvent\n * @api\n */\nclass TileImage extends UrlTile {\n /**\n * @param {!Options} options Image tile options.\n */\n constructor(options) {\n super({\n attributions: options.attributions,\n cacheSize: options.cacheSize,\n opaque: options.opaque,\n projection: options.projection,\n state: options.state,\n tileGrid: options.tileGrid,\n tileLoadFunction: options.tileLoadFunction\n ? options.tileLoadFunction\n : defaultTileLoadFunction,\n tilePixelRatio: options.tilePixelRatio,\n tileUrlFunction: options.tileUrlFunction,\n url: options.url,\n urls: options.urls,\n wrapX: options.wrapX,\n transition: options.transition,\n key: options.key,\n attributionsCollapsible: options.attributionsCollapsible,\n zDirection: options.zDirection,\n });\n\n /**\n * @protected\n * @type {?string}\n */\n this.crossOrigin =\n options.crossOrigin !== undefined ? options.crossOrigin : null;\n\n /**\n * @protected\n * @type {typeof ImageTile}\n */\n this.tileClass =\n options.tileClass !== undefined ? options.tileClass : ImageTile;\n\n /**\n * @protected\n * @type {!Object<string, TileCache>}\n */\n this.tileCacheForProjection = {};\n\n /**\n * @protected\n * @type {!Object<string, import(\"../tilegrid/TileGrid.js\").default>}\n */\n this.tileGridForProjection = {};\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.reprojectionErrorThreshold_ = options.reprojectionErrorThreshold;\n\n /**\n * @private\n * @type {object|undefined}\n */\n this.contextOptions_ =\n options.imageSmoothing === false ? IMAGE_SMOOTHING_DISABLED : undefined;\n\n /**\n * @private\n * @type {boolean}\n */\n this.renderReprojectionEdges_ = false;\n }\n\n /**\n * @return {boolean} Can expire cache.\n */\n canExpireCache() {\n if (!ENABLE_RASTER_REPROJECTION) {\n return super.canExpireCache();\n }\n if (this.tileCache.canExpireCache()) {\n return true;\n } else {\n for (const key in this.tileCacheForProjection) {\n if (this.tileCacheForProjection[key].canExpireCache()) {\n return true;\n }\n }\n }\n return false;\n }\n\n /**\n * @param {import(\"../proj/Projection.js\").default} projection Projection.\n * @param {!Object<string, boolean>} usedTiles Used tiles.\n */\n expireCache(projection, usedTiles) {\n if (!ENABLE_RASTER_REPROJECTION) {\n super.expireCache(projection, usedTiles);\n return;\n }\n const usedTileCache = this.getTileCacheForProjection(projection);\n\n this.tileCache.expireCache(\n this.tileCache == usedTileCache ? usedTiles : {}\n );\n for (const id in this.tileCacheForProjection) {\n const tileCache = this.tileCacheForProjection[id];\n tileCache.expireCache(tileCache == usedTileCache ? usedTiles : {});\n }\n }\n\n /**\n * @return {Object|undefined} Context options.\n */\n getContextOptions() {\n return this.contextOptions_;\n }\n\n /**\n * @param {import(\"../proj/Projection.js\").default} projection Projection.\n * @return {number} Gutter.\n */\n getGutterForProjection(projection) {\n if (\n ENABLE_RASTER_REPROJECTION &&\n this.getProjection() &&\n projection &&\n !equivalent(this.getProjection(), projection)\n ) {\n return 0;\n } else {\n return this.getGutter();\n }\n }\n\n /**\n * @return {number} Gutter.\n */\n getGutter() {\n return 0;\n }\n\n /**\n * Return the key to be used for all tiles in the source.\n * @return {string} The key for all tiles.\n * @protected\n */\n getKey() {\n return (\n super.getKey() +\n (this.contextOptions_ ? '\\n' + JSON.stringify(this.contextOptions_) : '')\n );\n }\n\n /**\n * @param {import(\"../proj/Projection.js\").default} projection Projection.\n * @return {boolean} Opaque.\n */\n getOpaque(projection) {\n if (\n ENABLE_RASTER_REPROJECTION &&\n this.getProjection() &&\n projection &&\n !equivalent(this.getProjection(), projection)\n ) {\n return false;\n } else {\n return super.getOpaque(projection);\n }\n }\n\n /**\n * @param {import(\"../proj/Projection.js\").default} projection Projection.\n * @return {!import(\"../tilegrid/TileGrid.js\").default} Tile grid.\n */\n getTileGridForProjection(projection) {\n if (!ENABLE_RASTER_REPROJECTION) {\n return super.getTileGridForProjection(projection);\n }\n const thisProj = this.getProjection();\n if (this.tileGrid && (!thisProj || equivalent(thisProj, projection))) {\n return this.tileGrid;\n } else {\n const projKey = getUid(projection);\n if (!(projKey in this.tileGridForProjection)) {\n this.tileGridForProjection[projKey] = getTileGridForProjection(\n projection\n );\n }\n return this.tileGridForProjection[projKey];\n }\n }\n\n /**\n * @param {import(\"../proj/Projection.js\").default} projection Projection.\n * @return {import(\"../TileCache.js\").default} Tile cache.\n */\n getTileCacheForProjection(projection) {\n if (!ENABLE_RASTER_REPROJECTION) {\n return super.getTileCacheForProjection(projection);\n }\n const thisProj = this.getProjection();\n if (!thisProj || equivalent(thisProj, projection)) {\n return this.tileCache;\n } else {\n const projKey = getUid(projection);\n if (!(projKey in this.tileCacheForProjection)) {\n this.tileCacheForProjection[projKey] = new TileCache(\n this.tileCache.highWaterMark\n );\n }\n return this.tileCacheForProjection[projKey];\n }\n }\n\n /**\n * @param {number} z Tile coordinate z.\n * @param {number} x Tile coordinate x.\n * @param {number} y Tile coordinate y.\n * @param {number} pixelRatio Pixel ratio.\n * @param {import(\"../proj/Projection.js\").default} projection Projection.\n * @param {string} key The key set on the tile.\n * @return {!import(\"../Tile.js\").default} Tile.\n * @private\n */\n createTile_(z, x, y, pixelRatio, projection, key) {\n const tileCoord = [z, x, y];\n const urlTileCoord = this.getTileCoordForTileUrlFunction(\n tileCoord,\n projection\n );\n const tileUrl = urlTileCoord\n ? this.tileUrlFunction(urlTileCoord, pixelRatio, projection)\n : undefined;\n const tile = new this.tileClass(\n tileCoord,\n tileUrl !== undefined ? TileState.IDLE : TileState.EMPTY,\n tileUrl !== undefined ? tileUrl : '',\n this.crossOrigin,\n this.tileLoadFunction,\n this.tileOptions\n );\n tile.key = key;\n tile.addEventListener(EventType.CHANGE, this.handleTileChange.bind(this));\n return tile;\n }\n\n /**\n * @param {number} z Tile coordinate z.\n * @param {number} x Tile coordinate x.\n * @param {number} y Tile coordinate y.\n * @param {number} pixelRatio Pixel ratio.\n * @param {import(\"../proj/Projection.js\").default} projection Projection.\n * @return {!import(\"../Tile.js\").default} Tile.\n */\n getTile(z, x, y, pixelRatio, projection) {\n const sourceProjection = this.getProjection();\n if (\n !ENABLE_RASTER_REPROJECTION ||\n !sourceProjection ||\n !projection ||\n equivalent(sourceProjection, projection)\n ) {\n return this.getTileInternal(\n z,\n x,\n y,\n pixelRatio,\n sourceProjection || projection\n );\n } else {\n const cache = this.getTileCacheForProjection(projection);\n const tileCoord = [z, x, y];\n let tile;\n const tileCoordKey = getKey(tileCoord);\n if (cache.containsKey(tileCoordKey)) {\n tile = cache.get(tileCoordKey);\n }\n const key = this.getKey();\n if (tile && tile.key == key) {\n return tile;\n } else {\n const sourceTileGrid = this.getTileGridForProjection(sourceProjection);\n const targetTileGrid = this.getTileGridForProjection(projection);\n const wrappedTileCoord = this.getTileCoordForTileUrlFunction(\n tileCoord,\n projection\n );\n const newTile = new ReprojTile(\n sourceProjection,\n sourceTileGrid,\n projection,\n targetTileGrid,\n tileCoord,\n wrappedTileCoord,\n this.getTilePixelRatio(pixelRatio),\n this.getGutter(),\n function (z, x, y, pixelRatio) {\n return this.getTileInternal(z, x, y, pixelRatio, sourceProjection);\n }.bind(this),\n this.reprojectionErrorThreshold_,\n this.renderReprojectionEdges_,\n this.contextOptions_\n );\n newTile.key = key;\n\n if (tile) {\n newTile.interimTile = tile;\n newTile.refreshInterimChain();\n cache.replace(tileCoordKey, newTile);\n } else {\n cache.set(tileCoordKey, newTile);\n }\n return newTile;\n }\n }\n }\n\n /**\n * @param {number} z Tile coordinate z.\n * @param {number} x Tile coordinate x.\n * @param {number} y Tile coordinate y.\n * @param {number} pixelRatio Pixel ratio.\n * @param {!import(\"../proj/Projection.js\").default} projection Projection.\n * @return {!import(\"../Tile.js\").default} Tile.\n * @protected\n */\n getTileInternal(z, x, y, pixelRatio, projection) {\n let tile = null;\n const tileCoordKey = getKeyZXY(z, x, y);\n const key = this.getKey();\n if (!this.tileCache.containsKey(tileCoordKey)) {\n tile = this.createTile_(z, x, y, pixelRatio, projection, key);\n this.tileCache.set(tileCoordKey, tile);\n } else {\n tile = this.tileCache.get(tileCoordKey);\n if (tile.key != key) {\n // The source's params changed. If the tile has an interim tile and if we\n // can use it then we use it. Otherwise we create a new tile. In both\n // cases we attempt to assign an interim tile to the new tile.\n const interimTile = tile;\n tile = this.createTile_(z, x, y, pixelRatio, projection, key);\n\n //make the new tile the head of the list,\n if (interimTile.getState() == TileState.IDLE) {\n //the old tile hasn't begun loading yet, and is now outdated, so we can simply discard it\n tile.interimTile = interimTile.interimTile;\n } else {\n tile.interimTile = interimTile;\n }\n tile.refreshInterimChain();\n this.tileCache.replace(tileCoordKey, tile);\n }\n }\n return tile;\n }\n\n /**\n * Sets whether to render reprojection edges or not (usually for debugging).\n * @param {boolean} render Render the edges.\n * @api\n */\n setRenderReprojectionEdges(render) {\n if (\n !ENABLE_RASTER_REPROJECTION ||\n this.renderReprojectionEdges_ == render\n ) {\n return;\n }\n this.renderReprojectionEdges_ = render;\n for (const id in this.tileCacheForProjection) {\n this.tileCacheForProjection[id].clear();\n }\n this.changed();\n }\n\n /**\n * Sets the tile grid to use when reprojecting the tiles to the given\n * projection instead of the default tile grid for the projection.\n *\n * This can be useful when the default tile grid cannot be created\n * (e.g. projection has no extent defined) or\n * for optimization reasons (custom tile size, resolutions, ...).\n *\n * @param {import(\"../proj.js\").ProjectionLike} projection Projection.\n * @param {import(\"../tilegrid/TileGrid.js\").default} tilegrid Tile grid to use for the projection.\n * @api\n */\n setTileGridForProjection(projection, tilegrid) {\n if (ENABLE_RASTER_REPROJECTION) {\n const proj = getProjection(projection);\n if (proj) {\n const projKey = getUid(proj);\n if (!(projKey in this.tileGridForProjection)) {\n this.tileGridForProjection[projKey] = tilegrid;\n }\n }\n }\n }\n}\n\n/**\n * @param {ImageTile} imageTile Image tile.\n * @param {string} src Source.\n */\nfunction defaultTileLoadFunction(imageTile, src) {\n /** @type {HTMLImageElement|HTMLVideoElement} */ (imageTile.getImage()).src = src;\n}\n\nexport default TileImage;\n","/**\n * @module ol/source/XYZ\n */\n\nimport TileImage from './TileImage.js';\nimport {createXYZ, extentFromProjection} from '../tilegrid.js';\n\n/**\n * @typedef {Object} Options\n * @property {import(\"./Source.js\").AttributionLike} [attributions] Attributions.\n * @property {boolean} [attributionsCollapsible=true] Attributions are collapsible.\n * @property {number} [cacheSize] Initial tile cache size. Will auto-grow to hold at least the number of tiles in the viewport.\n * @property {null|string} [crossOrigin] The `crossOrigin` attribute for loaded images. Note that\n * you must provide a `crossOrigin` value if you want to access pixel data with the Canvas renderer.\n * See https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_enabled_image for more detail.\n * @property {boolean} [imageSmoothing=true] Enable image smoothing.\n * @property {boolean} [opaque=false] Whether the layer is opaque.\n * @property {import(\"../proj.js\").ProjectionLike} [projection='EPSG:3857'] Projection.\n * @property {number} [reprojectionErrorThreshold=0.5] Maximum allowed reprojection error (in pixels).\n * Higher values can increase reprojection performance, but decrease precision.\n * @property {number} [maxZoom=42] Optional max zoom level. Not used if `tileGrid` is provided.\n * @property {number} [minZoom=0] Optional min zoom level. Not used if `tileGrid` is provided.\n * @property {number} [maxResolution] Optional tile grid resolution at level zero. Not used if `tileGrid` is provided.\n * @property {import(\"../tilegrid/TileGrid.js\").default} [tileGrid] Tile grid.\n * @property {import(\"../Tile.js\").LoadFunction} [tileLoadFunction] Optional function to load a tile given a URL. The default is\n * ```js\n * function(imageTile, src) {\n * imageTile.getImage().src = src;\n * };\n * ```\n * @property {number} [tilePixelRatio=1] The pixel ratio used by the tile service.\n * For example, if the tile service advertizes 256px by 256px tiles but actually sends 512px\n * by 512px images (for retina/hidpi devices) then `tilePixelRatio`\n * should be set to `2`.\n * @property {number|import(\"../size.js\").Size} [tileSize=[256, 256]] The tile size used by the tile service.\n * Not used if `tileGrid` is provided.\n * @property {import(\"../Tile.js\").UrlFunction} [tileUrlFunction] Optional function to get\n * tile URL given a tile coordinate and the projection.\n * Required if `url` or `urls` are not provided.\n * @property {string} [url] URL template. Must include `{x}`, `{y}` or `{-y}`,\n * and `{z}` placeholders. A `{?-?}` template pattern, for example `subdomain{a-f}.domain.com`,\n * may be used instead of defining each one separately in the `urls` option.\n * @property {Array<string>} [urls] An array of URL templates.\n * @property {boolean} [wrapX=true] Whether to wrap the world horizontally.\n * @property {number} [transition] Duration of the opacity transition for rendering.\n * To disable the opacity transition, pass `transition: 0`.\n * @property {number} [zDirection=0] Indicate which resolution should be used\n * by a renderer if the view resolution does not match any resolution of the tile source.\n * If 0, the nearest resolution will be used. If 1, the nearest lower resolution\n * will be used. If -1, the nearest higher resolution will be used.\n */\n\n/**\n * @classdesc\n * Layer source for tile data with URLs in a set XYZ format that are\n * defined in a URL template. By default, this follows the widely-used\n * Google grid where `x` 0 and `y` 0 are in the top left. Grids like\n * TMS where `x` 0 and `y` 0 are in the bottom left can be used by\n * using the `{-y}` placeholder in the URL template, so long as the\n * source does not have a custom tile grid. In this case,\n * {@link module:ol/source/TileImage} can be used with a `tileUrlFunction`\n * such as:\n *\n * tileUrlFunction: function(coordinate) {\n * return 'http://mapserver.com/' + coordinate[0] + '/' +\n * coordinate[1] + '/' + coordinate[2] + '.png';\n * }\n *\n * @api\n */\nclass XYZ extends TileImage {\n /**\n * @param {Options=} opt_options XYZ options.\n */\n constructor(opt_options) {\n const options = opt_options || {};\n const projection =\n options.projection !== undefined ? options.projection : 'EPSG:3857';\n\n const tileGrid =\n options.tileGrid !== undefined\n ? options.tileGrid\n : createXYZ({\n extent: extentFromProjection(projection),\n maxResolution: options.maxResolution,\n maxZoom: options.maxZoom,\n minZoom: options.minZoom,\n tileSize: options.tileSize,\n });\n\n super({\n attributions: options.attributions,\n cacheSize: options.cacheSize,\n crossOrigin: options.crossOrigin,\n imageSmoothing: options.imageSmoothing,\n opaque: options.opaque,\n projection: projection,\n reprojectionErrorThreshold: options.reprojectionErrorThreshold,\n tileGrid: tileGrid,\n tileLoadFunction: options.tileLoadFunction,\n tilePixelRatio: options.tilePixelRatio,\n tileUrlFunction: options.tileUrlFunction,\n url: options.url,\n urls: options.urls,\n wrapX: options.wrapX !== undefined ? options.wrapX : true,\n transition: options.transition,\n attributionsCollapsible: options.attributionsCollapsible,\n zDirection: options.zDirection,\n });\n }\n}\n\nexport default XYZ;\n","/**\n * @module ol/source/OSM\n */\n\nimport XYZ from './XYZ.js';\n\n/**\n * The attribution containing a link to the OpenStreetMap Copyright and License\n * page.\n * @const\n * @type {string}\n * @api\n */\nexport const ATTRIBUTION =\n '© ' +\n '<a href=\"https://www.openstreetmap.org/copyright\" target=\"_blank\">OpenStreetMap</a> ' +\n 'contributors.';\n\n/**\n * @typedef {Object} Options\n * @property {import(\"./Source.js\").AttributionLike} [attributions] Attributions.\n * @property {number} [cacheSize] Initial tile cache size. Will auto-grow to hold at least the number of tiles in the viewport.\n * @property {null|string} [crossOrigin='anonymous'] The `crossOrigin` attribute for loaded images. Note that\n * you must provide a `crossOrigin` value if you want to access pixel data with the Canvas renderer.\n * See https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_enabled_image for more detail.\n * @property {boolean} [imageSmoothing=true] Enable image smoothing.\n * @property {number} [maxZoom=19] Max zoom.\n * @property {boolean} [opaque=true] Whether the layer is opaque.\n * @property {number} [reprojectionErrorThreshold=0.5] Maximum allowed reprojection error (in pixels).\n * Higher values can increase reprojection performance, but decrease precision.\n * @property {import(\"../Tile.js\").LoadFunction} [tileLoadFunction] Optional function to load a tile given a URL. The default is\n * ```js\n * function(imageTile, src) {\n * imageTile.getImage().src = src;\n * };\n * ```\n * @property {string} [url='https://{a-c}.tile.openstreetmap.org/{z}/{x}/{y}.png'] URL template.\n * Must include `{x}`, `{y}` or `{-y}`, and `{z}` placeholders.\n * @property {boolean} [wrapX=true] Whether to wrap the world horizontally.\n */\n\n/**\n * @classdesc\n * Layer source for the OpenStreetMap tile server.\n * @api\n */\nclass OSM extends XYZ {\n /**\n * @param {Options=} [opt_options] Open Street Map options.\n */\n constructor(opt_options) {\n const options = opt_options || {};\n\n let attributions;\n if (options.attributions !== undefined) {\n attributions = options.attributions;\n } else {\n attributions = [ATTRIBUTION];\n }\n\n const crossOrigin =\n options.crossOrigin !== undefined ? options.crossOrigin : 'anonymous';\n\n const url =\n options.url !== undefined\n ? options.url\n : 'https://{a-c}.tile.openstreetmap.org/{z}/{x}/{y}.png';\n\n super({\n attributions: attributions,\n cacheSize: options.cacheSize,\n crossOrigin: crossOrigin,\n imageSmoothing: options.imageSmoothing,\n opaque: options.opaque !== undefined ? options.opaque : true,\n maxZoom: options.maxZoom !== undefined ? options.maxZoom : 19,\n reprojectionErrorThreshold: options.reprojectionErrorThreshold,\n tileLoadFunction: options.tileLoadFunction,\n url: url,\n wrapX: options.wrapX,\n attributionsCollapsible: false,\n });\n }\n}\n\nexport default OSM;\n","import 'ol/ol.css';\nimport { Map, View } from 'ol';\nimport Feature from 'ol/Feature';\nimport Point from 'ol/geom/Point';\nimport { Fill, Stroke, Style, Circle } from 'ol/style';\nimport TileLayer from 'ol/layer/Tile';\nimport OSM from 'ol/source/OSM';\nimport { fromLonLat } from 'ol/proj';\nimport VectorLayer from 'ol/layer/Vector';\nimport VectorSource from 'ol/source/Vector';\nimport Layer from 'ol/layer/Layer';\n\n/* When the user clicks on the button,\ntoggle between hiding and showing the dropdown content */\n$('.ui.dropdown')\n .dropdown()\n;\n\nexport function viewMap(center, users){\n let longLat = [center.long, center.lat];\n let WebMercator = fromLonLat(longLat);\n \n const features = users.map(({ location }) => {\n if (!location) { return; }\n\n const { longitude, latitude } = location;\n \n if (!longitude || !latitude) { return; }\n\n const marker = new Feature({\n geometry: new Point(fromLonLat([longitude, latitude])),\n name: `[${longitude},${latitude}]`\n });\n\n marker.setStyle(\n new Style({\n image: new Circle({\n fill: new Fill({ color: '#ff0000' }),\n stroke: new Stroke({ color: '#000000', width: 1 }),\n radius: 5\n })\n })\n );\n\n return marker;\n });\n\n const tileLayer = new TileLayer({\n source: new OSM()\n });\n \n const vectorLayer = new VectorLayer({\n source: new VectorSource({ features: features.filter(f => f) })\n });\n\n const map = new Map({\n target: 'map',\n layers: [\n tileLayer,\n vectorLayer,\n ],\n view: new View({\n center: WebMercator,\n zoom: 13\n })\n });\n} ","var bundleURL = null;\nfunction getBundleURLCached() {\n if (!bundleURL) {\n bundleURL = getBundleURL();\n }\n\n return bundleURL;\n}\n\nfunction getBundleURL() {\n // Attempt to find the URL of the current script and use that as the base URL\n try {\n throw new Error;\n } catch (err) {\n var matches = ('' + err.stack).match(/(https?|file|ftp|chrome-extension|moz-extension):\\/\\/[^)\\n]+/g);\n if (matches) {\n return getBaseURL(matches[0]);\n }\n }\n\n return '/';\n}\n\nfunction getBaseURL(url) {\n return ('' + url).replace(/^((?:https?|file|ftp|chrome-extension|moz-extension):\\/\\/.+)\\/[^/]+$/, '$1') + '/';\n}\n\nexports.getBundleURL = getBundleURLCached;\nexports.getBaseURL = getBaseURL;\n","var bundle = require('./bundle-url');\n\nfunction updateLink(link) {\n var newLink = link.cloneNode();\n newLink.onload = function () {\n link.remove();\n };\n newLink.href = link.href.split('?')[0] + '?' + Date.now();\n link.parentNode.insertBefore(newLink, link.nextSibling);\n}\n\nvar cssTimeout = null;\nfunction reloadCSS() {\n if (cssTimeout) {\n return;\n }\n\n cssTimeout = setTimeout(function () {\n var links = document.querySelectorAll('link[rel=\"stylesheet\"]');\n for (var i = 0; i < links.length; i++) {\n if (bundle.getBaseURL(links[i].href) === bundle.getBundleURL()) {\n updateLink(links[i]);\n }\n }\n\n cssTimeout = null;\n }, 50);\n}\n\nmodule.exports = reloadCSS;\n","var OVERLAY_ID = '__parcel__error__overlay__';\n\nvar OldModule = module.bundle.Module;\n\nfunction Module(moduleName) {\n OldModule.call(this, moduleName);\n this.hot = {\n data: module.bundle.hotData,\n _acceptCallbacks: [],\n _disposeCallbacks: [],\n accept: function (fn) {\n this._acceptCallbacks.push(fn || function () {});\n },\n dispose: function (fn) {\n this._disposeCallbacks.push(fn);\n }\n };\n\n module.bundle.hotData = null;\n}\n\nmodule.bundle.Module = Module;\nvar checkedAssets, assetsToAccept;\n\nvar parent = module.bundle.parent;\nif ((!parent || !parent.isParcelRequire) && typeof WebSocket !== 'undefined') {\n var hostname = process.env.HMR_HOSTNAME || location.hostname;\n var protocol = location.protocol === 'https:' ? 'wss' : 'ws';\n var ws = new WebSocket(protocol + '://' + hostname + ':' + process.env.HMR_PORT + '/');\n ws.onmessage = function(event) {\n checkedAssets = {};\n assetsToAccept = [];\n\n var data = JSON.parse(event.data);\n\n if (data.type === 'update') {\n var handled = false;\n data.assets.forEach(function(asset) {\n if (!asset.isNew) {\n var didAccept = hmrAcceptCheck(global.parcelRequire, asset.id);\n if (didAccept) {\n handled = true;\n }\n }\n });\n\n // Enable HMR for CSS by default.\n handled = handled || data.assets.every(function(asset) {\n return asset.type === 'css' && asset.generated.js;\n });\n\n if (handled) {\n console.clear();\n\n data.assets.forEach(function (asset) {\n hmrApply(global.parcelRequire, asset);\n });\n\n assetsToAccept.forEach(function (v) {\n hmrAcceptRun(v[0], v[1]);\n });\n } else if (location.reload) { // `location` global exists in a web worker context but lacks `.reload()` function.\n location.reload();\n }\n }\n\n if (data.type === 'reload') {\n ws.close();\n ws.onclose = function () {\n location.reload();\n }\n }\n\n if (data.type === 'error-resolved') {\n console.log('[parcel] ✨ Error resolved');\n\n removeErrorOverlay();\n }\n\n if (data.type === 'error') {\n console.error('[parcel] 🚨 ' + data.error.message + '\\n' + data.error.stack);\n\n removeErrorOverlay();\n\n var overlay = createErrorOverlay(data);\n document.body.appendChild(overlay);\n }\n };\n}\n\nfunction removeErrorOverlay() {\n var overlay = document.getElementById(OVERLAY_ID);\n if (overlay) {\n overlay.remove();\n }\n}\n\nfunction createErrorOverlay(data) {\n var overlay = document.createElement('div');\n overlay.id = OVERLAY_ID;\n\n // html encode message and stack trace\n var message = document.createElement('div');\n var stackTrace = document.createElement('pre');\n message.innerText = data.error.message;\n stackTrace.innerText = data.error.stack;\n\n overlay.innerHTML = (\n '<div style=\"background: black; font-size: 16px; color: white; position: fixed; height: 100%; width: 100%; top: 0px; left: 0px; padding: 30px; opacity: 0.85; font-family: Menlo, Consolas, monospace; z-index: 9999;\">' +\n '<span style=\"background: red; padding: 2px 4px; border-radius: 2px;\">ERROR</span>' +\n '<span style=\"top: 2px; margin-left: 5px; position: relative;\">🚨</span>' +\n '<div style=\"font-size: 18px; font-weight: bold; margin-top: 20px;\">' + message.innerHTML + '</div>' +\n '<pre>' + stackTrace.innerHTML + '</pre>' +\n '</div>'\n );\n\n return overlay;\n\n}\n\nfunction getParents(bundle, id) {\n var modules = bundle.modules;\n if (!modules) {\n return [];\n }\n\n var parents = [];\n var k, d, dep;\n\n for (k in modules) {\n for (d in modules[k][1]) {\n dep = modules[k][1][d];\n if (dep === id || (Array.isArray(dep) && dep[dep.length - 1] === id)) {\n parents.push(k);\n }\n }\n }\n\n if (bundle.parent) {\n parents = parents.concat(getParents(bundle.parent, id));\n }\n\n return parents;\n}\n\nfunction hmrApply(bundle, asset) {\n var modules = bundle.modules;\n if (!modules) {\n return;\n }\n\n if (modules[asset.id] || !bundle.parent) {\n var fn = new Function('require', 'module', 'exports', asset.generated.js);\n asset.isNew = !modules[asset.id];\n modules[asset.id] = [fn, asset.deps];\n } else if (bundle.parent) {\n hmrApply(bundle.parent, asset);\n }\n}\n\nfunction hmrAcceptCheck(bundle, id) {\n var modules = bundle.modules;\n if (!modules) {\n return;\n }\n\n if (!modules[id] && bundle.parent) {\n return hmrAcceptCheck(bundle.parent, id);\n }\n\n if (checkedAssets[id]) {\n return;\n }\n checkedAssets[id] = true;\n\n var cached = bundle.cache[id];\n\n assetsToAccept.push([bundle, id]);\n\n if (cached && cached.hot && cached.hot._acceptCallbacks.length) {\n return true;\n }\n\n return getParents(global.parcelRequire, id).some(function (id) {\n return hmrAcceptCheck(global.parcelRequire, id)\n });\n}\n\nfunction hmrAcceptRun(bundle, id) {\n var cached = bundle.cache[id];\n bundle.hotData = {};\n if (cached) {\n cached.hot.data = bundle.hotData;\n }\n\n if (cached && cached.hot && cached.hot._disposeCallbacks.length) {\n cached.hot._disposeCallbacks.forEach(function (cb) {\n cb(bundle.hotData);\n });\n }\n\n delete bundle.cache[id];\n bundle(id);\n\n cached = bundle.cache[id];\n if (cached && cached.hot && cached.hot._acceptCallbacks.length) {\n cached.hot._acceptCallbacks.forEach(function (cb) {\n cb();\n });\n return true;\n }\n}\n"]}
\ No newline at end of file
diff --git a/public/assets/js/general.js b/public/assets/js/general.js
deleted file mode 100644
index b39ea1724be5f8711890be6559a262f078aac1aa..0000000000000000000000000000000000000000
--- a/public/assets/js/general.js
+++ /dev/null
@@ -1,5 +0,0 @@
-/* When the user clicks on the button,
-toggle between hiding and showing the dropdown content */
-$('.ui.dropdown')
- .dropdown()
-;
\ No newline at end of file
diff --git a/public/assets/js/map.js b/public/assets/js/map.js
new file mode 100644
index 0000000000000000000000000000000000000000..fa8ae09354e3b275cc1a82f39111430d12bae015
--- /dev/null
+++ b/public/assets/js/map.js
@@ -0,0 +1,67 @@
+import 'ol/ol.css';
+import { Map, View } from 'ol';
+import Feature from 'ol/Feature';
+import Point from 'ol/geom/Point';
+import { Fill, Stroke, Style, Circle } from 'ol/style';
+import TileLayer from 'ol/layer/Tile';
+import OSM from 'ol/source/OSM';
+import { fromLonLat } from 'ol/proj';
+import VectorLayer from 'ol/layer/Vector';
+import VectorSource from 'ol/source/Vector';
+import Layer from 'ol/layer/Layer';
+
+/* When the user clicks on the button,
+toggle between hiding and showing the dropdown content */
+$('.ui.dropdown')
+ .dropdown()
+;
+
+export function viewMap(center, users){
+ let longLat = [center.long, center.lat];
+ let WebMercator = fromLonLat(longLat);
+
+ const features = users.map(({ location }) => {
+ if (!location) { return; }
+
+ const { longitude, latitude } = location;
+
+ if (!longitude || !latitude) { return; }
+
+ const marker = new Feature({
+ geometry: new Point(fromLonLat([longitude, latitude])),
+ name: `[${longitude},${latitude}]`
+ });
+
+ marker.setStyle(
+ new Style({
+ image: new Circle({
+ fill: new Fill({ color: '#ff0000' }),
+ stroke: new Stroke({ color: '#000000', width: 1 }),
+ radius: 5
+ })
+ })
+ );
+
+ return marker;
+ });
+
+ const tileLayer = new TileLayer({
+ source: new OSM()
+ });
+
+ const vectorLayer = new VectorLayer({
+ source: new VectorSource({ features: features.filter(f => f) })
+ });
+
+ const map = new Map({
+ target: 'map',
+ layers: [
+ tileLayer,
+ vectorLayer,
+ ],
+ view: new View({
+ center: WebMercator,
+ zoom: 13
+ })
+ });
+}
\ No newline at end of file