From 24c0248fc037ae622e2f313d059b1d4a55045d6a Mon Sep 17 00:00:00 2001 From: eric1tran Date: Mon, 22 Nov 2021 18:27:12 +0000 Subject: [PATCH] Openlayers cleanup. Remove v4.4.2 js/css files and remove source map files as minified files are not being used to begin with --- public_html_merged/ol/ol3-layerswitcher.css | 92 -- public_html_merged/ol/ol3-layerswitcher.js | 289 ----- public_html_merged/ol/v4.4.2/ol-4.4.2.css | 1 - public_html_merged/ol/v4.4.2/ol-4.4.2.js | 1064 ------------------- public_html_merged/ol/v6.3.1/ol.css.map | 1 - public_html_merged/ol/v6.3.1/ol.js.map | 1 - 6 files changed, 1448 deletions(-) delete mode 100644 public_html_merged/ol/ol3-layerswitcher.css delete mode 100644 public_html_merged/ol/ol3-layerswitcher.js delete mode 100755 public_html_merged/ol/v4.4.2/ol-4.4.2.css delete mode 100755 public_html_merged/ol/v4.4.2/ol-4.4.2.js delete mode 100644 public_html_merged/ol/v6.3.1/ol.css.map delete mode 100644 public_html_merged/ol/v6.3.1/ol.js.map diff --git a/public_html_merged/ol/ol3-layerswitcher.css b/public_html_merged/ol/ol3-layerswitcher.css deleted file mode 100644 index 7e5ebc0..0000000 --- a/public_html_merged/ol/ol3-layerswitcher.css +++ /dev/null @@ -1,92 +0,0 @@ -.layer-switcher.shown.ol-control { - background-color: transparent; -} - -.layer-switcher.shown.ol-control:hover { - background-color: transparent; -} - -.layer-switcher { - position: absolute; - top: 3.5em; - right: 0.5em; - text-align: left; -} - -.layer-switcher.shown { - bottom: 3em; -} - -.layer-switcher .panel { - padding: 0 1em 0 0; - margin: 0; - border: 4px solid #eee; - border-radius: 4px; - background-color: white; - display: none; - max-height: 100%; - overflow-y: auto; -} - -.layer-switcher.shown .panel { - display: block; -} - -.layer-switcher button { - float: right; - width: 32px; - height: 32px; - background-image: url('data:image/png;base64,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') /*logo.png*/; - background-repeat: no-repeat; - background-position: 0px; - background-color: transparent; - border: none; -} - -.layer-switcher.shown button { - display: none; -} - -.layer-switcher button:focus, .layer-switcher button:hover { - background-color: white; -} - -.layer-switcher ul { - padding-left: 1em; - list-style: none; -} - -.layer-switcher li.group { - padding-top: 5px; -} - -.layer-switcher li.group > label { - font-weight: bold; -} - -.layer-switcher li.layer { - display: table; -} - -.layer-switcher li.layer label, .layer-switcher li.layer input { - display: table-cell; - vertical-align: sub; -} - -.layer-switcher input { - margin: 4px; -} - -.layer-switcher.touch ::-webkit-scrollbar { - width: 4px; -} - -.layer-switcher.touch ::-webkit-scrollbar-track { - -webkit-box-shadow: inset 0 0 6px rgba(0,0,0,0.3); - border-radius: 10px; -} - -.layer-switcher.touch ::-webkit-scrollbar-thumb { - border-radius: 10px; - -webkit-box-shadow: inset 0 0 6px rgba(0,0,0,0.5); -} diff --git a/public_html_merged/ol/ol3-layerswitcher.js b/public_html_merged/ol/ol3-layerswitcher.js deleted file mode 100644 index 444c499..0000000 --- a/public_html_merged/ol/ol3-layerswitcher.js +++ /dev/null @@ -1,289 +0,0 @@ -/** - * OpenLayers 3 Layer Switcher Control. - * See [the examples](./examples) for usage. - * @constructor - * @extends {ol.control.Control} - * @param {Object} opt_options Control options, extends olx.control.ControlOptions adding: - * **`tipLabel`** `String` - the button tooltip. - */ -ol.control.LayerSwitcher = function(opt_options) { - - var options = opt_options || {}; - - var tipLabel = options.tipLabel ? - options.tipLabel : 'Legend'; - - this.mapListeners = []; - - this.hiddenClassName = 'ol-unselectable ol-control layer-switcher'; - if (ol.control.LayerSwitcher.isTouchDevice_()) { - this.hiddenClassName += ' touch'; - } - this.shownClassName = this.hiddenClassName + ' shown'; - - var element = document.createElement('div'); - element.className = this.hiddenClassName; - - var button = document.createElement('button'); - button.setAttribute('title', tipLabel); - element.appendChild(button); - - this.panel = document.createElement('div'); - this.panel.className = 'panel'; - element.appendChild(this.panel); - ol.control.LayerSwitcher.enableTouchScroll_(this.panel); - - var this_ = this; - - button.onmouseover = function(e) { - this_.showPanel(); - }; - - button.onclick = function(e) { - e = e || window.event; - this_.showPanel(); - e.preventDefault(); - }; - - this_.panel.onmouseout = function(e) { - e = e || window.event; - if (!this_.panel.contains(e.toElement || e.relatedTarget)) { - this_.hidePanel(); - } - }; - - ol.control.Control.call(this, { - element: element, - target: options.target - }); - -}; - -ol.inherits(ol.control.LayerSwitcher, ol.control.Control); - -/** - * Show the layer panel. - */ -ol.control.LayerSwitcher.prototype.showPanel = function() { - if (this.element.className != this.shownClassName) { - this.element.className = this.shownClassName; - this.renderPanel(); - } -}; - -/** - * Hide the layer panel. - */ -ol.control.LayerSwitcher.prototype.hidePanel = function() { - if (this.element.className != this.hiddenClassName) { - this.element.className = this.hiddenClassName; - } -}; - -/** - * Re-draw the layer panel to represent the current state of the layers. - */ -ol.control.LayerSwitcher.prototype.renderPanel = function() { - - this.ensureTopVisibleBaseLayerShown_(); - - while(this.panel.firstChild) { - this.panel.removeChild(this.panel.firstChild); - } - - var ul = document.createElement('ul'); - this.panel.appendChild(ul); - this.renderLayers_(this.getMap(), ul); - -}; - -/** - * Set the map instance the control is associated with. - * @param {ol.Map} map The map instance. - */ -ol.control.LayerSwitcher.prototype.setMap = function(map) { - // Clean up listeners associated with the previous map - for (var i = 0, key; i < this.mapListeners.length; i++) { - this.getMap().unByKey(this.mapListeners[i]); - } - this.mapListeners.length = 0; - // Wire up listeners etc. and store reference to new map - ol.control.Control.prototype.setMap.call(this, map); - if (map) { - var this_ = this; - this.mapListeners.push(map.on('pointerdown', function() { - this_.hidePanel(); - })); - this.renderPanel(); - } -}; - -/** - * Ensure only the top-most base layer is visible if more than one is visible. - * @private - */ -ol.control.LayerSwitcher.prototype.ensureTopVisibleBaseLayerShown_ = function() { - var lastVisibleBaseLyr; - ol.control.LayerSwitcher.forEachRecursive(this.getMap(), function(l, idx, a) { - if (l.get('type') === 'base' && l.getVisible()) { - lastVisibleBaseLyr = l; - } - }); - if (lastVisibleBaseLyr) this.setVisible_(lastVisibleBaseLyr, true); -}; - -/** - * Toggle the visible state of a layer. - * Takes care of hiding other layers in the same exclusive group if the layer - * is toggle to visible. - * @private - * @param {ol.layer.Base} The layer whos visibility will be toggled. - */ -ol.control.LayerSwitcher.prototype.setVisible_ = function(lyr, visible) { - var map = this.getMap(); - lyr.setVisible(visible); - if (visible && lyr.get('type') === 'base') { - // Hide all other base layers regardless of grouping - ol.control.LayerSwitcher.forEachRecursive(map, function(l, idx, a) { - if (l != lyr && l.get('type') === 'base') { - l.setVisible(false); - } - }); - } -}; - -/** - * Render all layers that are children of a group. - * @private - * @param {ol.layer.Base} lyr Layer to be rendered (should have a title property). - * @param {Number} idx Position in parent group list. - */ -ol.control.LayerSwitcher.prototype.renderLayer_ = function(lyr, idx) { - - var this_ = this; - - var li = document.createElement('li'); - - var lyrTitle = lyr.get('title'); - var lyrId = ol.control.LayerSwitcher.uuid(); - - var label = document.createElement('label'); - - if (lyr.getLayers && !lyr.get('combine')) { - - li.className = 'group'; - label.innerHTML = lyrTitle; - li.appendChild(label); - var ul = document.createElement('ul'); - li.appendChild(ul); - - this.renderLayers_(lyr, ul); - - } else { - - li.className = 'layer'; - var input = document.createElement('input'); - if (lyr.get('type') === 'base') { - input.type = 'radio'; - input.name = 'base'; - } else { - input.type = 'checkbox'; - } - input.id = lyrId; - input.checked = lyr.get('visible'); - input.onchange = function(e) { - this_.setVisible_(lyr, e.target.checked); - }; - li.appendChild(input); - - label.htmlFor = lyrId; - label.innerHTML = lyrTitle; - li.appendChild(label); - - } - - return li; - -}; - -/** - * Render all layers that are children of a group. - * @private - * @param {ol.layer.Group} lyr Group layer whos children will be rendered. - * @param {Element} elm DOM element that children will be appended to. - */ -ol.control.LayerSwitcher.prototype.renderLayers_ = function(lyr, elm) { - var lyrs = lyr.getLayers().getArray().slice(); - for (var i = 0, l; i < lyrs.length; i++) { - l = lyrs[i]; - if (l.get('title')) { - elm.appendChild(this.renderLayer_(l, i)); - } - } -}; - -/** - * **Static** Call the supplied function for each layer in the passed layer group - * recursing nested groups. - * @param {ol.layer.Group} lyr The layer group or collection/array to start iterating from. - * @param {Function} fn Callback which will be called for each `ol.layer.Base` - * found under `lyr`. The signature for `fn` is the same as `ol.Collection#forEach` - */ -ol.control.LayerSwitcher.forEachRecursive = function(lyr, fn) { - var traverse = function(lyr, idx, a) { - fn(lyr, idx, a); - if (lyr.getLayers) { - ol.control.LayerSwitcher.forEachRecursive(lyr, fn); - } - }; - - if (lyr.getLayers) { - lyr.getLayers().forEach(traverse); - } else { - lyr.forEach(traverse); - } -}; - -/** - * Generate a UUID - * @returns {String} UUID - * - * Adapted from http://stackoverflow.com/a/2117523/526860 - */ -ol.control.LayerSwitcher.uuid = function() { - return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) { - var r = Math.random()*16|0, v = c == 'x' ? r : (r&0x3|0x8); - return v.toString(16); - }); -} - -/** -* @private -* @desc Apply workaround to enable scrolling of overflowing content within an -* element. Adapted from https://gist.github.com/chrismbarr/4107472 -*/ -ol.control.LayerSwitcher.enableTouchScroll_ = function(elm) { - if(ol.control.LayerSwitcher.isTouchDevice_()){ - var scrollStartPos = 0; - elm.addEventListener("touchstart", function(event) { - scrollStartPos = this.scrollTop + event.touches[0].pageY; - }, false); - elm.addEventListener("touchmove", function(event) { - this.scrollTop = scrollStartPos - event.touches[0].pageY; - }, false); - } -}; - -/** - * @private - * @desc Determine if the current browser supports touch events. Adapted from - * https://gist.github.com/chrismbarr/4107472 - */ -ol.control.LayerSwitcher.isTouchDevice_ = function() { - try { - document.createEvent("TouchEvent"); - return true; - } catch(e) { - return false; - } -}; diff --git a/public_html_merged/ol/v4.4.2/ol-4.4.2.css b/public_html_merged/ol/v4.4.2/ol-4.4.2.css deleted file mode 100755 index 1719726..0000000 --- a/public_html_merged/ol/v4.4.2/ol-4.4.2.css +++ /dev/null @@ -1 +0,0 @@ -.ol-box{box-sizing:border-box;border-radius:2px;border:2px solid #00f}.ol-mouse-position{top:8px;right:8px;position:absolute}.ol-scale-line{background:rgba(0,60,136,.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}.ol-overlay-container{will-change:left,right,top,bottom}.ol-unsupported{display:none}.ol-unselectable,.ol-viewport{-webkit-touch-callout:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}.ol-selectable{-webkit-touch-callout:default;-webkit-user-select:auto;-moz-user-select:auto;-ms-user-select:auto;user-select:auto}.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,.4);border-radius:4px;padding:2px}.ol-control:hover{background-color:rgba(255,255,255,.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}@media print{.ol-control{display:none}}.ol-control button{display:block;margin:1px;padding:0;color:#fff;font-size:1.14em;font-weight:700;text-decoration:none;text-align:center;height:1.375em;width:1.375em;line-height:.4em;background-color:rgba(0,60,136,.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:400;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:focus,.ol-control button:hover{text-decoration:none;background-color:rgba(0,60,136,.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;font-size:.7rem;line-height:1.375em;color:#000;text-shadow:0 0 2px #fff}.ol-attribution li{display:inline;list-style:none;line-height:inherit}.ol-attribution li:not(:last-child):after{content:" "}.ol-attribution img{max-height:2em;max-width:inherit;vertical-align:middle}.ol-attribution button,.ol-attribution ul{display:inline-block}.ol-attribution.ol-collapsed ul{display:none}.ol-attribution.ol-logo-only ul{display:block}.ol-attribution:not(.ol-collapsed){background:rgba(255,255,255,.8)}.ol-attribution.ol-uncollapsible{bottom:0;right:0;border-radius:4px 0 0;height:1.1em;line-height:1em}.ol-attribution.ol-logo-only{background:0 0;bottom:.4em;height:1.1em;line-height:1em}.ol-attribution.ol-uncollapsible img{margin-top:-.2em;max-height:1.6em}.ol-attribution.ol-logo-only button,.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:.5em;bottom:.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,.8)}.ol-overviewmap-box{border:2px dotted rgba(0,60,136,.7)}.ol-overviewmap .ol-overviewmap-box:hover{cursor:move} \ No newline at end of file diff --git a/public_html_merged/ol/v4.4.2/ol-4.4.2.js b/public_html_merged/ol/v4.4.2/ol-4.4.2.js deleted file mode 100755 index 21de1a4..0000000 --- a/public_html_merged/ol/v4.4.2/ol-4.4.2.js +++ /dev/null @@ -1,1064 +0,0 @@ -// OpenLayers. See https://openlayers.org/ -// License: https://raw.githubusercontent.com/openlayers/openlayers/master/LICENSE.md -// Version: v4.4.2 -;(function (root, factory) { - if (typeof exports === "object") { - module.exports = factory(); - } else if (typeof define === "function" && define.amd) { - define([], factory); - } else { - root.ol = factory(); - } -}(this, function () { - var OPENLAYERS = {}; - var k,aa=this;function t(a,b){var c=OPENLAYERS;a=a.split(".");c=c||aa;a[0]in c||!c.execScript||c.execScript("var "+a[0]);for(var d;a.length&&(d=a.shift());)a.length||void 0===b?c[d]&&c[d]!==Object.prototype[d]?c=c[d]:c=c[d]={}:c[d]=b};var ba,da;function ea(a,b){return a>b?1:ac)for(c=1;c>>0,d,e=0;e=b.ba&&a.ea<=b.ga&&a.ga>=b.ea};function Da(a,b,c){return Math.min(Math.max(a,b),c)}var Ea=function(){var a;"cosh"in Math?a=Math.cosh:a=function(a){a=Math.exp(a);return(a+1/a)/2};return a}();function Fa(a){wa(0a*b?a+b:a}function Ka(a,b,c){return a+c*(b-a)};function La(a,b,c){void 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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","// This Source Code Form is subject to the terms of the Mozilla Public\n// License, v. 2.0. If a copy of the MPL was not distributed with this\n// file, You can obtain one at http://mozilla.org/MPL/2.0/\n// Variable to hold current primary touch event identifier.\n// iOS needs this since it does not attribute\n// identifier 0 to primary touch event.\nvar primaryTouchId = null;\n// Variable to hold mouse pointer captures.\nvar mouseCaptureTarget = null;\nif (!(\"PointerEvent\" in window)) {\n // Define {set,release}PointerCapture\n definePointerCapture();\n // Create Pointer polyfill from mouse events only on non-touch device\n if (!(\"TouchEvent\" in window)) {\n addMouseToPointerListener(document, \"mousedown\", \"pointerdown\");\n addMouseToPointerListener(document, \"mousemove\", \"pointermove\");\n addMouseToPointerListener(document, \"mouseup\", \"pointerup\");\n }\n // Define Pointer polyfill from touch events\n addTouchToPointerListener(document, \"touchstart\", \"pointerdown\");\n addTouchToPointerListener(document, \"touchmove\", \"pointermove\");\n addTouchToPointerListener(document, \"touchend\", \"pointerup\");\n}\n// Function defining {set,release}PointerCapture from {set,releas}Capture\nfunction definePointerCapture() {\n Element.prototype.setPointerCapture = Element.prototype.setCapture;\n Element.prototype.releasePointerCapture = Element.prototype.releaseCapture;\n}\n// Function converting a Mouse event to a Pointer event.\nfunction addMouseToPointerListener(target, mouseType, pointerType) {\n target.addEventListener(mouseType, function (mouseEvent) {\n var pointerEvent = new MouseEvent(pointerType, mouseEvent);\n pointerEvent.pointerId = 1;\n pointerEvent.isPrimary = true;\n pointerEvent.pointerType = \"mouse\";\n pointerEvent.width = 1;\n pointerEvent.height = 1;\n pointerEvent.tiltX = 0;\n pointerEvent.tiltY = 0;\n // pressure is 0.5 if a button is holded\n \"buttons\" in mouseEvent && mouseEvent.buttons !== 0\n ? (pointerEvent.pressure = 0.5)\n : (pointerEvent.pressure = 0);\n // if already capturing mouse event, transfer target\n // and don't forget implicit release on mouseup.\n var target = mouseEvent.target;\n if (mouseCaptureTarget !== null) {\n target = mouseCaptureTarget;\n if (mouseType === \"mouseup\") {\n mouseCaptureTarget = null;\n }\n }\n target.dispatchEvent(pointerEvent);\n if (pointerEvent.defaultPrevented) {\n mouseEvent.preventDefault();\n }\n });\n}\n// Function converting a Touch event to a Pointer event.\nfunction addTouchToPointerListener(target, touchType, pointerType) {\n target.addEventListener(touchType, function (touchEvent) {\n var changedTouches = touchEvent.changedTouches;\n var nbTouches = changedTouches.length;\n for (var t = 0; t < nbTouches; t++) {\n var pointerEvent = new CustomEvent(pointerType, {\n bubbles: true,\n cancelable: true\n });\n pointerEvent.ctrlKey = touchEvent.ctrlKey;\n pointerEvent.shiftKey = touchEvent.shiftKey;\n pointerEvent.altKey = touchEvent.altKey;\n pointerEvent.metaKey = touchEvent.metaKey;\n var touch = changedTouches.item(t);\n pointerEvent.clientX = touch.clientX;\n pointerEvent.clientY = touch.clientY;\n pointerEvent.screenX = touch.screenX;\n pointerEvent.screenY = touch.screenY;\n pointerEvent.pageX = touch.pageX;\n pointerEvent.pageY = touch.pageY;\n var rect = touch.target.getBoundingClientRect();\n pointerEvent.offsetX = touch.clientX - rect.left;\n pointerEvent.offsetY = touch.clientY - rect.top;\n pointerEvent.pointerId = 1 + touch.identifier;\n // Default values for standard MouseEvent fields.\n pointerEvent.button = 0;\n pointerEvent.buttons = 1;\n pointerEvent.movementX = 0;\n pointerEvent.movementY = 0;\n pointerEvent.region = null;\n pointerEvent.relatedTarget = null;\n pointerEvent.x = pointerEvent.clientX;\n pointerEvent.y = pointerEvent.clientY;\n // Pointer event details\n pointerEvent.pointerType = \"touch\";\n pointerEvent.width = 1;\n pointerEvent.height = 1;\n pointerEvent.tiltX = 0;\n pointerEvent.tiltY = 0;\n pointerEvent.pressure = 1;\n // First touch is the primary pointer event.\n if (touchType === \"touchstart\" && primaryTouchId === null) {\n primaryTouchId = touch.identifier;\n }\n pointerEvent.isPrimary = touch.identifier === primaryTouchId;\n // If first touch ends, reset primary touch id.\n if (touchType === \"touchend\" && pointerEvent.isPrimary) {\n primaryTouchId = null;\n }\n touchEvent.target.dispatchEvent(pointerEvent);\n if (pointerEvent.defaultPrevented) {\n touchEvent.preventDefault();\n }\n }\n });\n}\n//# sourceMappingURL=elm-pep.js.map","'use strict';\n\nmodule.exports = Pbf;\n\nvar ieee754 = require('ieee754');\n\nfunction Pbf(buf) {\n this.buf = ArrayBuffer.isView && ArrayBuffer.isView(buf) ? buf : new Uint8Array(buf || 0);\n this.pos = 0;\n this.type = 0;\n this.length = this.buf.length;\n}\n\nPbf.Varint = 0; // varint: int32, int64, uint32, uint64, sint32, sint64, bool, enum\nPbf.Fixed64 = 1; // 64-bit: double, fixed64, sfixed64\nPbf.Bytes = 2; // length-delimited: string, bytes, embedded messages, packed repeated fields\nPbf.Fixed32 = 5; // 32-bit: float, fixed32, sfixed32\n\nvar SHIFT_LEFT_32 = (1 << 16) * (1 << 16),\n SHIFT_RIGHT_32 = 1 / SHIFT_LEFT_32;\n\n// Threshold chosen based on both benchmarking and knowledge about browser string\n// data structures (which currently switch structure types at 12 bytes or more)\nvar TEXT_DECODER_MIN_LENGTH = 12;\nvar utf8TextDecoder = typeof TextDecoder === 'undefined' ? null : new TextDecoder('utf8');\n\nPbf.prototype = {\n\n destroy: function() {\n this.buf = null;\n },\n\n // === READING =================================================================\n\n readFields: function(readField, result, end) {\n end = end || this.length;\n\n while (this.pos < end) {\n var val = this.readVarint(),\n tag = val >> 3,\n startPos = this.pos;\n\n this.type = val & 0x7;\n readField(tag, result, this);\n\n if (this.pos === startPos) this.skip(val);\n }\n return result;\n },\n\n readMessage: function(readField, result) {\n return this.readFields(readField, result, this.readVarint() + this.pos);\n },\n\n readFixed32: function() {\n var val = readUInt32(this.buf, this.pos);\n this.pos += 4;\n return val;\n },\n\n readSFixed32: function() {\n var val = readInt32(this.buf, this.pos);\n this.pos += 4;\n return val;\n },\n\n // 64-bit int handling is based on github.com/dpw/node-buffer-more-ints (MIT-licensed)\n\n readFixed64: function() {\n var val = readUInt32(this.buf, this.pos) + readUInt32(this.buf, this.pos + 4) * SHIFT_LEFT_32;\n this.pos += 8;\n return val;\n },\n\n readSFixed64: function() {\n var val = readUInt32(this.buf, this.pos) + readInt32(this.buf, this.pos + 4) * SHIFT_LEFT_32;\n this.pos += 8;\n return val;\n },\n\n readFloat: function() {\n var val = ieee754.read(this.buf, this.pos, true, 23, 4);\n this.pos += 4;\n return val;\n },\n\n readDouble: function() {\n var val = ieee754.read(this.buf, this.pos, true, 52, 8);\n this.pos += 8;\n return val;\n },\n\n readVarint: function(isSigned) {\n var buf = this.buf,\n val, b;\n\n b = buf[this.pos++]; val = b & 0x7f; if (b < 0x80) return val;\n b = buf[this.pos++]; val |= (b & 0x7f) << 7; if (b < 0x80) return val;\n b = buf[this.pos++]; val |= (b & 0x7f) << 14; if (b < 0x80) return val;\n b = buf[this.pos++]; val |= (b & 0x7f) << 21; if (b < 0x80) return val;\n b = buf[this.pos]; val |= (b & 0x0f) << 28;\n\n return readVarintRemainder(val, isSigned, this);\n },\n\n readVarint64: function() { // for compatibility with v2.0.1\n return this.readVarint(true);\n },\n\n readSVarint: function() {\n var num = this.readVarint();\n return num % 2 === 1 ? (num + 1) / -2 : num / 2; // zigzag encoding\n },\n\n readBoolean: function() {\n return Boolean(this.readVarint());\n },\n\n readString: function() {\n var end = this.readVarint() + this.pos;\n var pos = this.pos;\n this.pos = end;\n\n if (end - pos >= TEXT_DECODER_MIN_LENGTH && utf8TextDecoder) {\n // longer strings are fast with the built-in browser TextDecoder API\n return readUtf8TextDecoder(this.buf, pos, end);\n }\n // short strings are fast with our custom implementation\n return readUtf8(this.buf, pos, end);\n },\n\n readBytes: function() {\n var end = this.readVarint() + this.pos,\n buffer = this.buf.subarray(this.pos, end);\n this.pos = end;\n return buffer;\n },\n\n // verbose for performance reasons; doesn't affect gzipped size\n\n readPackedVarint: function(arr, isSigned) {\n if (this.type !== Pbf.Bytes) return arr.push(this.readVarint(isSigned));\n var end = readPackedEnd(this);\n arr = arr || [];\n while (this.pos < end) arr.push(this.readVarint(isSigned));\n return arr;\n },\n readPackedSVarint: function(arr) {\n if (this.type !== Pbf.Bytes) return arr.push(this.readSVarint());\n var end = readPackedEnd(this);\n arr = arr || [];\n while (this.pos < end) arr.push(this.readSVarint());\n return arr;\n },\n readPackedBoolean: function(arr) {\n if (this.type !== Pbf.Bytes) return arr.push(this.readBoolean());\n var end = readPackedEnd(this);\n arr = arr || [];\n while (this.pos < end) arr.push(this.readBoolean());\n return arr;\n },\n readPackedFloat: function(arr) {\n if (this.type !== Pbf.Bytes) return arr.push(this.readFloat());\n var end = readPackedEnd(this);\n arr = arr || [];\n while (this.pos < end) arr.push(this.readFloat());\n return arr;\n },\n readPackedDouble: function(arr) {\n if (this.type !== Pbf.Bytes) return arr.push(this.readDouble());\n var end = readPackedEnd(this);\n arr = arr || [];\n while (this.pos < end) arr.push(this.readDouble());\n return arr;\n },\n readPackedFixed32: function(arr) {\n if (this.type !== Pbf.Bytes) return arr.push(this.readFixed32());\n var end = readPackedEnd(this);\n arr = arr || [];\n while (this.pos < end) arr.push(this.readFixed32());\n return arr;\n },\n readPackedSFixed32: function(arr) {\n if (this.type !== Pbf.Bytes) return arr.push(this.readSFixed32());\n var end = readPackedEnd(this);\n arr = arr || [];\n while (this.pos < end) arr.push(this.readSFixed32());\n return arr;\n },\n readPackedFixed64: function(arr) {\n if (this.type !== Pbf.Bytes) return arr.push(this.readFixed64());\n var end = readPackedEnd(this);\n arr = arr || [];\n while (this.pos < end) arr.push(this.readFixed64());\n return arr;\n },\n readPackedSFixed64: function(arr) {\n if (this.type !== Pbf.Bytes) return arr.push(this.readSFixed64());\n var end = readPackedEnd(this);\n arr = arr || [];\n while (this.pos < end) arr.push(this.readSFixed64());\n return arr;\n },\n\n skip: function(val) {\n var type = val & 0x7;\n if (type === Pbf.Varint) while (this.buf[this.pos++] > 0x7f) {}\n else if (type === Pbf.Bytes) this.pos = this.readVarint() + this.pos;\n else if (type === Pbf.Fixed32) this.pos += 4;\n else if (type === Pbf.Fixed64) this.pos += 8;\n else throw new Error('Unimplemented type: ' + type);\n },\n\n // === WRITING =================================================================\n\n writeTag: function(tag, type) {\n this.writeVarint((tag << 3) | type);\n },\n\n realloc: function(min) {\n var length = this.length || 16;\n\n while (length < this.pos + min) length *= 2;\n\n if (length !== this.length) {\n var buf = new Uint8Array(length);\n buf.set(this.buf);\n this.buf = buf;\n this.length = length;\n }\n },\n\n finish: function() {\n this.length = this.pos;\n this.pos = 0;\n return this.buf.subarray(0, this.length);\n },\n\n writeFixed32: function(val) {\n this.realloc(4);\n writeInt32(this.buf, val, this.pos);\n this.pos += 4;\n },\n\n writeSFixed32: function(val) {\n this.realloc(4);\n writeInt32(this.buf, val, this.pos);\n this.pos += 4;\n },\n\n writeFixed64: function(val) {\n this.realloc(8);\n writeInt32(this.buf, val & -1, this.pos);\n writeInt32(this.buf, Math.floor(val * SHIFT_RIGHT_32), this.pos + 4);\n this.pos += 8;\n },\n\n writeSFixed64: function(val) {\n this.realloc(8);\n writeInt32(this.buf, val & -1, this.pos);\n writeInt32(this.buf, Math.floor(val * SHIFT_RIGHT_32), this.pos + 4);\n this.pos += 8;\n },\n\n writeVarint: function(val) {\n val = +val || 0;\n\n if (val > 0xfffffff || val < 0) {\n writeBigVarint(val, this);\n return;\n }\n\n this.realloc(4);\n\n this.buf[this.pos++] = val & 0x7f | (val > 0x7f ? 0x80 : 0); if (val <= 0x7f) return;\n this.buf[this.pos++] = ((val >>>= 7) & 0x7f) | (val > 0x7f ? 0x80 : 0); if (val <= 0x7f) return;\n this.buf[this.pos++] = ((val >>>= 7) & 0x7f) | (val > 0x7f ? 0x80 : 0); if (val <= 0x7f) return;\n this.buf[this.pos++] = (val >>> 7) & 0x7f;\n },\n\n writeSVarint: function(val) {\n this.writeVarint(val < 0 ? -val * 2 - 1 : val * 2);\n },\n\n writeBoolean: function(val) {\n this.writeVarint(Boolean(val));\n },\n\n writeString: function(str) {\n str = String(str);\n this.realloc(str.length * 4);\n\n this.pos++; // reserve 1 byte for short string length\n\n var startPos = this.pos;\n // write the string directly to the buffer and see how much was written\n this.pos = writeUtf8(this.buf, str, this.pos);\n var len = this.pos - startPos;\n\n if (len >= 0x80) makeRoomForExtraLength(startPos, len, this);\n\n // finally, write the message length in the reserved place and restore the position\n this.pos = startPos - 1;\n this.writeVarint(len);\n this.pos += len;\n },\n\n writeFloat: function(val) {\n this.realloc(4);\n ieee754.write(this.buf, val, this.pos, true, 23, 4);\n this.pos += 4;\n },\n\n writeDouble: function(val) {\n this.realloc(8);\n ieee754.write(this.buf, val, this.pos, true, 52, 8);\n this.pos += 8;\n },\n\n writeBytes: function(buffer) {\n var len = buffer.length;\n this.writeVarint(len);\n this.realloc(len);\n for (var i = 0; i < len; i++) this.buf[this.pos++] = buffer[i];\n },\n\n writeRawMessage: function(fn, obj) {\n this.pos++; // reserve 1 byte for short message length\n\n // write the message directly to the buffer and see how much was written\n var startPos = this.pos;\n fn(obj, this);\n var len = this.pos - startPos;\n\n if (len >= 0x80) makeRoomForExtraLength(startPos, len, this);\n\n // finally, write the message length in the reserved place and restore the position\n this.pos = startPos - 1;\n this.writeVarint(len);\n this.pos += len;\n },\n\n writeMessage: function(tag, fn, obj) {\n this.writeTag(tag, Pbf.Bytes);\n this.writeRawMessage(fn, obj);\n },\n\n writePackedVarint: function(tag, arr) { if (arr.length) this.writeMessage(tag, writePackedVarint, arr); },\n writePackedSVarint: function(tag, arr) { if (arr.length) this.writeMessage(tag, writePackedSVarint, arr); },\n writePackedBoolean: function(tag, arr) { if (arr.length) this.writeMessage(tag, writePackedBoolean, arr); },\n writePackedFloat: function(tag, arr) { if (arr.length) this.writeMessage(tag, writePackedFloat, arr); },\n writePackedDouble: function(tag, arr) { if (arr.length) this.writeMessage(tag, writePackedDouble, arr); },\n writePackedFixed32: function(tag, arr) { if (arr.length) this.writeMessage(tag, writePackedFixed32, arr); },\n writePackedSFixed32: function(tag, arr) { if (arr.length) this.writeMessage(tag, writePackedSFixed32, arr); },\n writePackedFixed64: function(tag, arr) { if (arr.length) this.writeMessage(tag, writePackedFixed64, arr); },\n writePackedSFixed64: function(tag, arr) { if (arr.length) this.writeMessage(tag, writePackedSFixed64, arr); },\n\n writeBytesField: function(tag, buffer) {\n this.writeTag(tag, Pbf.Bytes);\n this.writeBytes(buffer);\n },\n writeFixed32Field: function(tag, val) {\n this.writeTag(tag, Pbf.Fixed32);\n this.writeFixed32(val);\n },\n writeSFixed32Field: function(tag, val) {\n this.writeTag(tag, Pbf.Fixed32);\n this.writeSFixed32(val);\n },\n writeFixed64Field: function(tag, val) {\n this.writeTag(tag, Pbf.Fixed64);\n this.writeFixed64(val);\n },\n writeSFixed64Field: function(tag, val) {\n this.writeTag(tag, Pbf.Fixed64);\n this.writeSFixed64(val);\n },\n writeVarintField: function(tag, val) {\n this.writeTag(tag, Pbf.Varint);\n this.writeVarint(val);\n },\n writeSVarintField: function(tag, val) {\n this.writeTag(tag, Pbf.Varint);\n this.writeSVarint(val);\n },\n writeStringField: function(tag, str) {\n this.writeTag(tag, Pbf.Bytes);\n this.writeString(str);\n },\n writeFloatField: function(tag, val) {\n this.writeTag(tag, Pbf.Fixed32);\n this.writeFloat(val);\n },\n writeDoubleField: function(tag, val) {\n this.writeTag(tag, Pbf.Fixed64);\n this.writeDouble(val);\n },\n writeBooleanField: function(tag, val) {\n this.writeVarintField(tag, Boolean(val));\n }\n};\n\nfunction readVarintRemainder(l, s, p) {\n var buf = p.buf,\n h, b;\n\n b = buf[p.pos++]; h = (b & 0x70) >> 4; if (b < 0x80) return toNum(l, h, s);\n b = buf[p.pos++]; h |= (b & 0x7f) << 3; if (b < 0x80) return toNum(l, h, s);\n b = buf[p.pos++]; h |= (b & 0x7f) << 10; if (b < 0x80) return toNum(l, h, s);\n b = buf[p.pos++]; h |= (b & 0x7f) << 17; if (b < 0x80) return toNum(l, h, s);\n b = buf[p.pos++]; h |= (b & 0x7f) << 24; if (b < 0x80) return toNum(l, h, s);\n b = buf[p.pos++]; h |= (b & 0x01) << 31; if (b < 0x80) return toNum(l, h, s);\n\n throw new Error('Expected varint not more than 10 bytes');\n}\n\nfunction readPackedEnd(pbf) {\n return pbf.type === Pbf.Bytes ?\n pbf.readVarint() + pbf.pos : pbf.pos + 1;\n}\n\nfunction toNum(low, high, isSigned) {\n if (isSigned) {\n return high * 0x100000000 + (low >>> 0);\n }\n\n return ((high >>> 0) * 0x100000000) + (low >>> 0);\n}\n\nfunction writeBigVarint(val, pbf) {\n var low, high;\n\n if (val >= 0) {\n low = (val % 0x100000000) | 0;\n high = (val / 0x100000000) | 0;\n } else {\n low = ~(-val % 0x100000000);\n high = ~(-val / 0x100000000);\n\n if (low ^ 0xffffffff) {\n low = (low + 1) | 0;\n } else {\n low = 0;\n high = (high + 1) | 0;\n }\n }\n\n if (val >= 0x10000000000000000 || val < -0x10000000000000000) {\n throw new Error('Given varint doesn\\'t fit into 10 bytes');\n }\n\n pbf.realloc(10);\n\n writeBigVarintLow(low, high, pbf);\n writeBigVarintHigh(high, pbf);\n}\n\nfunction writeBigVarintLow(low, high, pbf) {\n pbf.buf[pbf.pos++] = low & 0x7f | 0x80; low >>>= 7;\n pbf.buf[pbf.pos++] = low & 0x7f | 0x80; low >>>= 7;\n pbf.buf[pbf.pos++] = low & 0x7f | 0x80; low >>>= 7;\n pbf.buf[pbf.pos++] = low & 0x7f | 0x80; low >>>= 7;\n pbf.buf[pbf.pos] = low & 0x7f;\n}\n\nfunction writeBigVarintHigh(high, pbf) {\n var lsb = (high & 0x07) << 4;\n\n pbf.buf[pbf.pos++] |= lsb | ((high >>>= 3) ? 0x80 : 0); if (!high) return;\n pbf.buf[pbf.pos++] = high & 0x7f | ((high >>>= 7) ? 0x80 : 0); if (!high) return;\n pbf.buf[pbf.pos++] = high & 0x7f | ((high >>>= 7) ? 0x80 : 0); if (!high) return;\n pbf.buf[pbf.pos++] = high & 0x7f | ((high >>>= 7) ? 0x80 : 0); if (!high) return;\n pbf.buf[pbf.pos++] = high & 0x7f | ((high >>>= 7) ? 0x80 : 0); if (!high) return;\n pbf.buf[pbf.pos++] = high & 0x7f;\n}\n\nfunction makeRoomForExtraLength(startPos, len, pbf) {\n var extraLen =\n len <= 0x3fff ? 1 :\n len <= 0x1fffff ? 2 :\n len <= 0xfffffff ? 3 : Math.floor(Math.log(len) / (Math.LN2 * 7));\n\n // if 1 byte isn't enough for encoding message length, shift the data to the right\n pbf.realloc(extraLen);\n for (var i = pbf.pos - 1; i >= startPos; i--) pbf.buf[i + extraLen] = pbf.buf[i];\n}\n\nfunction writePackedVarint(arr, pbf) { for (var i = 0; i < arr.length; i++) pbf.writeVarint(arr[i]); }\nfunction writePackedSVarint(arr, pbf) { for (var i = 0; i < arr.length; i++) pbf.writeSVarint(arr[i]); }\nfunction writePackedFloat(arr, pbf) { for (var i = 0; i < arr.length; i++) pbf.writeFloat(arr[i]); }\nfunction writePackedDouble(arr, pbf) { for (var i = 0; i < arr.length; i++) pbf.writeDouble(arr[i]); }\nfunction writePackedBoolean(arr, pbf) { for (var i = 0; i < arr.length; i++) pbf.writeBoolean(arr[i]); }\nfunction writePackedFixed32(arr, pbf) { for (var i = 0; i < arr.length; i++) pbf.writeFixed32(arr[i]); }\nfunction writePackedSFixed32(arr, pbf) { for (var i = 0; i < arr.length; i++) pbf.writeSFixed32(arr[i]); }\nfunction writePackedFixed64(arr, pbf) { for (var i = 0; i < arr.length; i++) pbf.writeFixed64(arr[i]); }\nfunction writePackedSFixed64(arr, pbf) { for (var i = 0; i < arr.length; i++) pbf.writeSFixed64(arr[i]); }\n\n// Buffer code below from https://github.com/feross/buffer, MIT-licensed\n\nfunction readUInt32(buf, pos) {\n return ((buf[pos]) |\n (buf[pos + 1] << 8) |\n (buf[pos + 2] << 16)) +\n (buf[pos + 3] * 0x1000000);\n}\n\nfunction writeInt32(buf, val, pos) {\n buf[pos] = val;\n buf[pos + 1] = (val >>> 8);\n buf[pos + 2] = (val >>> 16);\n buf[pos + 3] = (val >>> 24);\n}\n\nfunction readInt32(buf, pos) {\n return ((buf[pos]) |\n (buf[pos + 1] << 8) |\n (buf[pos + 2] << 16)) +\n (buf[pos + 3] << 24);\n}\n\nfunction readUtf8(buf, pos, end) {\n var str = '';\n var i = pos;\n\n while (i < end) {\n var b0 = buf[i];\n var c = null; // codepoint\n var bytesPerSequence =\n b0 > 0xEF ? 4 :\n b0 > 0xDF ? 3 :\n b0 > 0xBF ? 2 : 1;\n\n if (i + bytesPerSequence > end) break;\n\n var b1, b2, b3;\n\n if (bytesPerSequence === 1) {\n if (b0 < 0x80) {\n c = b0;\n }\n } else if (bytesPerSequence === 2) {\n b1 = buf[i + 1];\n if ((b1 & 0xC0) === 0x80) {\n c = (b0 & 0x1F) << 0x6 | (b1 & 0x3F);\n if (c <= 0x7F) {\n c = null;\n }\n }\n } else if (bytesPerSequence === 3) {\n b1 = buf[i + 1];\n b2 = buf[i + 2];\n if ((b1 & 0xC0) === 0x80 && (b2 & 0xC0) === 0x80) {\n c = (b0 & 0xF) << 0xC | (b1 & 0x3F) << 0x6 | (b2 & 0x3F);\n if (c <= 0x7FF || (c >= 0xD800 && c <= 0xDFFF)) {\n c = null;\n }\n }\n } else if (bytesPerSequence === 4) {\n b1 = buf[i + 1];\n b2 = buf[i + 2];\n b3 = buf[i + 3];\n if ((b1 & 0xC0) === 0x80 && (b2 & 0xC0) === 0x80 && (b3 & 0xC0) === 0x80) {\n c = (b0 & 0xF) << 0x12 | (b1 & 0x3F) << 0xC | (b2 & 0x3F) << 0x6 | (b3 & 0x3F);\n if (c <= 0xFFFF || c >= 0x110000) {\n c = null;\n }\n }\n }\n\n if (c === null) {\n c = 0xFFFD;\n bytesPerSequence = 1;\n\n } else if (c > 0xFFFF) {\n c -= 0x10000;\n str += String.fromCharCode(c >>> 10 & 0x3FF | 0xD800);\n c = 0xDC00 | c & 0x3FF;\n }\n\n str += String.fromCharCode(c);\n i += bytesPerSequence;\n }\n\n return str;\n}\n\nfunction readUtf8TextDecoder(buf, pos, end) {\n return utf8TextDecoder.decode(buf.subarray(pos, end));\n}\n\nfunction writeUtf8(buf, str, pos) {\n for (var i = 0, c, lead; i < str.length; i++) {\n c = str.charCodeAt(i); // code point\n\n if (c > 0xD7FF && c < 0xE000) {\n if (lead) {\n if (c < 0xDC00) {\n buf[pos++] = 0xEF;\n buf[pos++] = 0xBF;\n buf[pos++] = 0xBD;\n lead = c;\n continue;\n } else {\n c = lead - 0xD800 << 10 | c - 0xDC00 | 0x10000;\n lead = null;\n }\n } else {\n if (c > 0xDBFF || (i + 1 === str.length)) {\n buf[pos++] = 0xEF;\n buf[pos++] = 0xBF;\n buf[pos++] = 0xBD;\n } else {\n lead = c;\n }\n continue;\n }\n } else if (lead) {\n buf[pos++] = 0xEF;\n buf[pos++] = 0xBF;\n buf[pos++] = 0xBD;\n lead = null;\n }\n\n if (c < 0x80) {\n buf[pos++] = c;\n } else {\n if (c < 0x800) {\n buf[pos++] = c >> 0x6 | 0xC0;\n } else {\n if (c < 0x10000) {\n buf[pos++] = c >> 0xC | 0xE0;\n } else {\n buf[pos++] = c >> 0x12 | 0xF0;\n buf[pos++] = c >> 0xC & 0x3F | 0x80;\n }\n buf[pos++] = c >> 0x6 & 0x3F | 0x80;\n }\n buf[pos++] = c & 0x3F | 0x80;\n }\n }\n return pos;\n}\n","var Processor = require('./processor');\n\nexports.Processor = Processor;\n","exports.read = function (buffer, offset, isLE, mLen, nBytes) {\n var e, m\n var eLen = (nBytes * 8) - mLen - 1\n var eMax = (1 << eLen) - 1\n var eBias = eMax >> 1\n var nBits = -7\n var i = isLE ? (nBytes - 1) : 0\n var d = isLE ? -1 : 1\n var s = buffer[offset + i]\n\n i += d\n\n e = s & ((1 << (-nBits)) - 1)\n s >>= (-nBits)\n nBits += eLen\n for (; nBits > 0; e = (e * 256) + buffer[offset + i], i += d, nBits -= 8) {}\n\n m = e & ((1 << (-nBits)) - 1)\n e >>= (-nBits)\n nBits += mLen\n for (; nBits > 0; m = (m * 256) + buffer[offset + i], i += d, nBits -= 8) {}\n\n if (e === 0) {\n e = 1 - eBias\n } else if (e === eMax) {\n return m ? NaN : ((s ? -1 : 1) * Infinity)\n } else {\n m = m + Math.pow(2, mLen)\n e = e - eBias\n }\n return (s ? -1 : 1) * m * Math.pow(2, e - mLen)\n}\n\nexports.write = function (buffer, value, offset, isLE, mLen, nBytes) {\n var e, m, c\n var eLen = (nBytes * 8) - mLen - 1\n var eMax = (1 << eLen) - 1\n var eBias = eMax >> 1\n var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)\n var i = isLE ? 0 : (nBytes - 1)\n var d = isLE ? 1 : -1\n var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0\n\n value = Math.abs(value)\n\n if (isNaN(value) || value === Infinity) {\n m = isNaN(value) ? 1 : 0\n e = eMax\n } else {\n e = Math.floor(Math.log(value) / Math.LN2)\n if (value * (c = Math.pow(2, -e)) < 1) {\n e--\n c *= 2\n }\n if (e + eBias >= 1) {\n value += rt / c\n } else {\n value += rt * Math.pow(2, 1 - eBias)\n }\n if (value * c >= 2) {\n e++\n c /= 2\n }\n\n if (e + eBias >= eMax) {\n m = 0\n e = eMax\n } else if (e + eBias >= 1) {\n m = ((value * c) - 1) * Math.pow(2, mLen)\n e = e + eBias\n } else {\n m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)\n e = 0\n }\n }\n\n for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}\n\n e = (e << mLen) | m\n eLen += mLen\n for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}\n\n buffer[offset + i - d] |= s * 128\n}\n","var newImageData = require('./util').newImageData;\n\n/**\n * Create a function for running operations. This function is serialized for\n * use in a worker.\n * @param {function(Array, Object):*} operation The operation.\n * @return {function(Object):ArrayBuffer} A function that takes an object with\n * buffers, meta, imageOps, width, and height properties and returns an array\n * buffer.\n */\nfunction createMinion(operation) {\n var workerHasImageData = true;\n try {\n new ImageData(10, 10);\n } catch (_) {\n workerHasImageData = false;\n }\n\n function newWorkerImageData(data, width, height) {\n if (workerHasImageData) {\n return new ImageData(data, width, height);\n } else {\n return {data: data, width: width, height: height};\n }\n }\n\n return function(data) {\n // bracket notation for minification support\n var buffers = data['buffers'];\n var meta = data['meta'];\n var imageOps = data['imageOps'];\n var width = data['width'];\n var height = data['height'];\n\n var numBuffers = buffers.length;\n var numBytes = buffers[0].byteLength;\n var output, b;\n\n if (imageOps) {\n var images = new Array(numBuffers);\n for (b = 0; b < numBuffers; ++b) {\n images[b] = newWorkerImageData(\n new Uint8ClampedArray(buffers[b]), width, height);\n }\n output = operation(images, meta).data;\n } else {\n output = new Uint8ClampedArray(numBytes);\n var arrays = new Array(numBuffers);\n var pixels = new Array(numBuffers);\n for (b = 0; b < numBuffers; ++b) {\n arrays[b] = new Uint8ClampedArray(buffers[b]);\n pixels[b] = [0, 0, 0, 0];\n }\n for (var i = 0; i < numBytes; i += 4) {\n for (var j = 0; j < numBuffers; ++j) {\n var array = arrays[j];\n pixels[j][0] = array[i];\n pixels[j][1] = array[i + 1];\n pixels[j][2] = array[i + 2];\n pixels[j][3] = array[i + 3];\n }\n var pixel = operation(pixels, meta);\n output[i] = pixel[0];\n output[i + 1] = pixel[1];\n output[i + 2] = pixel[2];\n output[i + 3] = pixel[3];\n }\n }\n return output.buffer;\n };\n}\n\n/**\n * Create a worker for running operations.\n * @param {Object} config Configuration.\n * @param {function(MessageEvent)} onMessage Called with a message event.\n * @return {Worker} The worker.\n */\nfunction createWorker(config, onMessage) {\n var lib = Object.keys(config.lib || {}).map(function(name) {\n return 'var ' + name + ' = ' + config.lib[name].toString() + ';';\n });\n\n var lines = lib.concat([\n 'var __minion__ = (' + createMinion.toString() + ')(', config.operation.toString(), ');',\n 'self.addEventListener(\"message\", function(event) {',\n ' var buffer = __minion__(event.data);',\n ' self.postMessage({buffer: buffer, meta: event.data.meta}, [buffer]);',\n '});'\n ]);\n\n var blob = new Blob(lines, {type: 'text/javascript'});\n var source = URL.createObjectURL(blob);\n var worker = new Worker(source);\n worker.addEventListener('message', onMessage);\n return worker;\n}\n\n/**\n * Create a faux worker for running operations.\n * @param {Object} config Configuration.\n * @param {function(MessageEvent)} onMessage Called with a message event.\n * @return {Object} The faux worker.\n */\nfunction createFauxWorker(config, onMessage) {\n var minion = createMinion(config.operation);\n return {\n postMessage: function(data) {\n setTimeout(function() {\n onMessage({'data': {'buffer': minion(data), 'meta': data['meta']}});\n }, 0);\n }\n };\n}\n\n/**\n * A processor runs pixel or image operations in workers.\n * @param {Object} config Configuration.\n */\nfunction Processor(config) {\n this._imageOps = !!config.imageOps;\n var threads;\n if (config.threads === 0) {\n threads = 0;\n } else if (this._imageOps) {\n threads = 1;\n } else {\n threads = config.threads || 1;\n }\n var workers = [];\n if (threads) {\n for (var i = 0; i < threads; ++i) {\n workers[i] = createWorker(config, this._onWorkerMessage.bind(this, i));\n }\n } else {\n workers[0] = createFauxWorker(config, this._onWorkerMessage.bind(this, 0));\n }\n this._workers = workers;\n this._queue = [];\n this._maxQueueLength = config.queue || Infinity;\n this._running = 0;\n this._dataLookup = {};\n this._job = null;\n}\n\n/**\n * Run operation on input data.\n * @param {Array.} inputs Array of pixels or image data\n * (depending on the operation type).\n * @param {Object} meta A user data object. This is passed to all operations\n * and must be serializable.\n * @param {function(Error, ImageData, Object)} callback Called when work\n * completes. The first argument is any error. The second is the ImageData\n * generated by operations. The third is the user data object.\n */\nProcessor.prototype.process = function(inputs, meta, callback) {\n this._enqueue({\n inputs: inputs,\n meta: meta,\n callback: callback\n });\n this._dispatch();\n};\n\n/**\n * Stop responding to any completed work and destroy the processor.\n */\nProcessor.prototype.destroy = function() {\n for (var key in this) {\n this[key] = null;\n }\n this._destroyed = true;\n};\n\n/**\n * Add a job to the queue.\n * @param {Object} job The job.\n */\nProcessor.prototype._enqueue = function(job) {\n this._queue.push(job);\n while (this._queue.length > this._maxQueueLength) {\n this._queue.shift().callback(null, null);\n }\n};\n\n/**\n * Dispatch a job.\n */\nProcessor.prototype._dispatch = function() {\n if (this._running === 0 && this._queue.length > 0) {\n var job = this._job = this._queue.shift();\n var width = job.inputs[0].width;\n var height = job.inputs[0].height;\n var buffers = job.inputs.map(function(input) {\n return input.data.buffer;\n });\n var threads = this._workers.length;\n this._running = threads;\n if (threads === 1) {\n this._workers[0].postMessage({\n 'buffers': buffers,\n 'meta': job.meta,\n 'imageOps': this._imageOps,\n 'width': width,\n 'height': height\n }, buffers);\n } else {\n var length = job.inputs[0].data.length;\n var segmentLength = 4 * Math.ceil(length / 4 / threads);\n for (var i = 0; i < threads; ++i) {\n var offset = i * segmentLength;\n var slices = [];\n for (var j = 0, jj = buffers.length; j < jj; ++j) {\n slices.push(buffers[i].slice(offset, offset + segmentLength));\n }\n this._workers[i].postMessage({\n 'buffers': slices,\n 'meta': job.meta,\n 'imageOps': this._imageOps,\n 'width': width,\n 'height': height\n }, slices);\n }\n }\n }\n};\n\n/**\n * Handle messages from the worker.\n * @param {number} index The worker index.\n * @param {MessageEvent} event The message event.\n */\nProcessor.prototype._onWorkerMessage = function(index, event) {\n if (this._destroyed) {\n return;\n }\n this._dataLookup[index] = event.data;\n --this._running;\n if (this._running === 0) {\n this._resolveJob();\n }\n};\n\n/**\n * Resolve a job. If there are no more worker threads, the processor callback\n * will be called.\n */\nProcessor.prototype._resolveJob = function() {\n var job = this._job;\n var threads = this._workers.length;\n var data, meta;\n if (threads === 1) {\n data = new Uint8ClampedArray(this._dataLookup[0]['buffer']);\n meta = this._dataLookup[0]['meta'];\n } else {\n var length = job.inputs[0].data.length;\n data = new Uint8ClampedArray(length);\n meta = new Array(length);\n var segmentLength = 4 * Math.ceil(length / 4 / threads);\n for (var i = 0; i < threads; ++i) {\n var buffer = this._dataLookup[i]['buffer'];\n var offset = i * segmentLength;\n data.set(new Uint8ClampedArray(buffer), offset);\n meta[i] = this._dataLookup[i]['meta'];\n }\n }\n this._job = null;\n this._dataLookup = {};\n job.callback(null,\n newImageData(data, job.inputs[0].width, job.inputs[0].height), meta);\n this._dispatch();\n};\n\nmodule.exports = Processor;\n","var hasImageData = true;\ntry {\n new ImageData(10, 10);\n} catch (_) {\n hasImageData = false;\n}\n\nvar context = document.createElement('canvas').getContext('2d');\n\nfunction newImageData(data, width, height) {\n if (hasImageData) {\n return new ImageData(data, width, height);\n } else {\n var imageData = context.createImageData(width, height);\n imageData.data.set(data);\n return imageData;\n }\n}\n\nexports.newImageData = newImageData;\n","/**\n * @module ol/util\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 * Counter for getUid.\n * @type {number}\n * @private\n */\nvar uidCounter_ = 0;\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 * OpenLayers version.\n * @type {string}\n */\nexport var VERSION = '6.3.1';\n//# sourceMappingURL=util.js.map","var __extends = (this && this.__extends) || (function () {\n var extendStatics = function (d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n return extendStatics(d, b);\n };\n return function (d, b) {\n extendStatics(d, b);\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n };\n})();\n/**\n * @module ol/AssertionError\n */\nimport { VERSION } from './util.js';\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 */\nvar AssertionError = /** @class */ (function (_super) {\n __extends(AssertionError, _super);\n /**\n * @param {number} code Error code.\n */\n function AssertionError(code) {\n var _this = this;\n var path = VERSION === 'latest' ? VERSION : 'v' + VERSION.split('-')[0];\n var message = 'Assertion failed. See https://openlayers.org/en/' + path +\n '/doc/errors/#' + code + ' for details.';\n _this = _super.call(this, message) || this;\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 * @type {string}\n */\n _this.name = 'AssertionError';\n // Re-assign message, see https://github.com/Rich-Harris/buble/issues/40\n _this.message = message;\n return _this;\n }\n return AssertionError;\n}(Error));\nexport default AssertionError;\n//# sourceMappingURL=AssertionError.js.map","/**\n * @module ol/CollectionEventType\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//# sourceMappingURL=CollectionEventType.js.map","/**\n * @module ol/ObjectEventType\n */\n/**\n * @enum {string}\n */\nexport default {\n /**\n * Triggered when a property is changed.\n * @event module:ol/Object.ObjectEvent#propertychange\n * @api\n */\n PROPERTYCHANGE: 'propertychange'\n};\n//# sourceMappingURL=ObjectEventType.js.map","/**\n * @module ol/obj\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 var assign = (typeof Object.assign === 'function') ? Object.assign : function (target, var_sources) {\n if (target === undefined || target === null) {\n throw new TypeError('Cannot convert undefined or null to object');\n }\n var output = Object(target);\n for (var i = 1, ii = arguments.length; i < ii; ++i) {\n var source = arguments[i];\n if (source !== undefined && source !== null) {\n for (var key in source) {\n if (source.hasOwnProperty(key)) {\n output[key] = source[key];\n }\n }\n }\n }\n return output;\n};\n/**\n * Removes all properties from an object.\n * @param {Object} object The object to clear.\n */\nexport function clear(object) {\n for (var property in object) {\n delete object[property];\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} object The object from which to get the values.\n * @return {!Array} The property values.\n * @template K,V\n */\nexport var getValues = (typeof Object.values === 'function') ? Object.values : function (object) {\n var values = [];\n for (var property in object) {\n values.push(object[property]);\n }\n return values;\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 var property;\n for (property in object) {\n return false;\n }\n return !property;\n}\n//# sourceMappingURL=obj.js.map","/**\n * @module ol/events\n */\nimport { clear } from './obj.js';\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 * 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 * @typedef {Object} ListenerObject\n * @property {ListenerFunction} handleEvent\n */\n/**\n * @typedef {ListenerFunction|ListenerObject} Listener\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 var originalListener_1 = listener;\n listener = function () {\n target.removeEventListener(type, listener);\n originalListener_1.apply(this, arguments);\n };\n }\n var eventsKey = {\n target: target,\n type: type,\n listener: listener\n };\n target.addEventListener(type, listener);\n return eventsKey;\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 * 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//# sourceMappingURL=events.js.map","/**\n * @module ol/Disposable\n */\n/**\n * @classdesc\n * Objects that need to clean up after themselves.\n */\nvar Disposable = /** @class */ (function () {\n function Disposable() {\n /**\n * The object has already been disposed.\n * @type {boolean}\n * @private\n */\n this.disposed_ = false;\n }\n /**\n * Clean up.\n */\n Disposable.prototype.dispose = function () {\n if (!this.disposed_) {\n this.disposed_ = true;\n this.disposeInternal();\n }\n };\n /**\n * Extension point for disposable objects.\n * @protected\n */\n Disposable.prototype.disposeInternal = function () { };\n return Disposable;\n}());\nexport default Disposable;\n//# sourceMappingURL=Disposable.js.map","/**\n * @module ol/array\n */\n/**\n * 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.\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 var mid, cmp;\n var comparator = opt_comparator || numberSafeCompareFunction;\n var low = 0;\n var high = haystack.length;\n var found = false;\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 if (cmp < 0.0) { /* Too low. */\n low = mid + 1;\n }\n else { /* Key found or too high */\n high = mid;\n found = !cmp;\n }\n }\n /* Key not found. */\n return found ? low : ~low;\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 * 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 * @param {Array} 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 var n = arr.length;\n if (arr[0] <= target) {\n return 0;\n }\n else if (target <= arr[n - 1]) {\n return n - 1;\n }\n else {\n var i = void 0;\n if (direction > 0) {\n for (i = 1; i < n; ++i) {\n if (arr[i] < target) {\n return i - 1;\n }\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 }\n else {\n for (i = 1; i < n; ++i) {\n if (arr[i] == target) {\n return i;\n }\n else if (arr[i] < target) {\n if (arr[i - 1] - target < target - arr[i]) {\n return i - 1;\n }\n else {\n return i;\n }\n }\n }\n }\n return n - 1;\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 var tmp = arr[begin];\n arr[begin] = arr[end];\n arr[end] = tmp;\n ++begin;\n --end;\n }\n}\n/**\n * @param {Array} arr The array to modify.\n * @param {!Array|VALUE} data The elements or arrays of elements to add to arr.\n * @template VALUE\n */\nexport function extend(arr, data) {\n var extension = Array.isArray(data) ? data : [data];\n var length = extension.length;\n for (var i = 0; i < length; i++) {\n arr[arr.length] = extension[i];\n }\n}\n/**\n * @param {Array} 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 var i = arr.indexOf(obj);\n var found = i > -1;\n if (found) {\n arr.splice(i, 1);\n }\n return found;\n}\n/**\n * @param {Array} 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 var length = arr.length >>> 0;\n var value;\n for (var 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 * @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 var len1 = arr1.length;\n if (len1 !== arr2.length) {\n return false;\n }\n for (var i = 0; i < len1; i++) {\n if (arr1[i] !== arr2[i]) {\n return false;\n }\n }\n return true;\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 var length = arr.length;\n var tmp = Array(arr.length);\n var 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 * @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 var index;\n var found = !arr.every(function (el, idx) {\n index = idx;\n return !func(el, idx, arr);\n });\n return found ? index : -1;\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 var compare = opt_func || numberSafeCompareFunction;\n return arr.every(function (currentVal, index) {\n if (index === 0) {\n return true;\n }\n var res = compare(arr[index - 1], currentVal);\n return !(res > 0 || opt_strict && res === 0);\n });\n}\n//# sourceMappingURL=array.js.map","/**\n * @module ol/functions\n */\nimport { equals as arrayEquals } from './array.js';\n/**\n * Always returns true.\n * @returns {boolean} true.\n */\nexport function TRUE() {\n return true;\n}\n/**\n * Always returns false.\n * @returns {boolean} false.\n */\nexport function FALSE() {\n return false;\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 * 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 var called = false;\n /** @type {ReturnType} */\n var lastResult;\n /** @type {Array} */\n var lastArgs;\n var lastThis;\n return function () {\n var 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//# sourceMappingURL=functions.js.map","/**\n * @module ol/events/Event\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. It is meant as base class\n * for higher level events defined in the library, and works with\n * {@link module:ol/events/Target~Target}.\n */\nvar BaseEvent = /** @class */ (function () {\n /**\n * @param {string} type Type.\n */\n function BaseEvent(type) {\n /**\n * @type {boolean}\n */\n this.propagationStopped;\n /**\n * The event type.\n * @type {string}\n * @api\n */\n this.type = type;\n /**\n * The event target.\n * @type {Object}\n * @api\n */\n this.target = null;\n }\n /**\n * Stop event propagation.\n * @api\n */\n BaseEvent.prototype.preventDefault = function () {\n this.propagationStopped = true;\n };\n /**\n * Stop event propagation.\n * @api\n */\n BaseEvent.prototype.stopPropagation = function () {\n this.propagationStopped = true;\n };\n return BaseEvent;\n}());\n/**\n * @param {Event|import(\"./Event.js\").default} evt Event\n */\nexport function stopPropagation(evt) {\n evt.stopPropagation();\n}\n/**\n * @param {Event|import(\"./Event.js\").default} evt Event\n */\nexport function preventDefault(evt) {\n evt.preventDefault();\n}\nexport default BaseEvent;\n//# sourceMappingURL=Event.js.map","var __extends = (this && this.__extends) || (function () {\n var extendStatics = function (d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n return extendStatics(d, b);\n };\n return function (d, b) {\n extendStatics(d, b);\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n };\n})();\n/**\n * @module ol/events/Target\n */\nimport Disposable from '../Disposable.js';\nimport { VOID } from '../functions.js';\nimport Event from './Event.js';\nimport { clear } from '../obj.js';\n/**\n * @typedef {EventTarget|Target} EventTargetLike\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 */\nvar Target = /** @class */ (function (_super) {\n __extends(Target, _super);\n /**\n * @param {*=} opt_target Default event target for dispatched events.\n */\n function Target(opt_target) {\n var _this = _super.call(this) || this;\n /**\n * @private\n * @type {*}\n */\n _this.eventTarget_ = opt_target;\n /**\n * @private\n * @type {!Object}\n */\n _this.pendingRemovals_ = {};\n /**\n * @private\n * @type {!Object}\n */\n _this.dispatching_ = {};\n /**\n * @private\n * @type {!Object>}\n */\n _this.listeners_ = {};\n return _this;\n }\n /**\n * @param {string} type Type.\n * @param {import(\"../events.js\").Listener} listener Listener.\n */\n Target.prototype.addEventListener = function (type, listener) {\n if (!type || !listener) {\n return;\n }\n var listeners = this.listeners_[type];\n if (!listeners) {\n listeners = [];\n this.listeners_[type] = listeners;\n }\n if (listeners.indexOf(listener) === -1) {\n listeners.push(listener);\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 Target.prototype.dispatchEvent = function (event) {\n /** @type {import(\"./Event.js\").default|Event} */\n var evt = typeof event === 'string' ? new Event(event) : event;\n var type = evt.type;\n if (!evt.target) {\n evt.target = this.eventTarget_ || this;\n }\n var listeners = this.listeners_[type];\n var propagate;\n if (listeners) {\n if (!(type in this.dispatching_)) {\n this.dispatching_[type] = 0;\n this.pendingRemovals_[type] = 0;\n }\n ++this.dispatching_[type];\n for (var i = 0, ii = listeners.length; i < ii; ++i) {\n if ('handleEvent' in listeners[i]) {\n propagate = /** @type {import(\"../events.js\").ListenerObject} */ (listeners[i]).handleEvent(evt);\n }\n else {\n propagate = /** @type {import(\"../events.js\").ListenerFunction} */ (listeners[i]).call(this, evt);\n }\n if (propagate === false || evt.propagationStopped) {\n propagate = false;\n break;\n }\n }\n --this.dispatching_[type];\n if (this.dispatching_[type] === 0) {\n var pendingRemovals = this.pendingRemovals_[type];\n delete this.pendingRemovals_[type];\n while (pendingRemovals--) {\n this.removeEventListener(type, VOID);\n }\n delete this.dispatching_[type];\n }\n return propagate;\n }\n };\n /**\n * @inheritDoc\n */\n Target.prototype.disposeInternal = function () {\n clear(this.listeners_);\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} Listeners.\n */\n Target.prototype.getListeners = function (type) {\n return this.listeners_[type];\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 Target.prototype.hasListener = function (opt_type) {\n return opt_type ?\n opt_type in this.listeners_ :\n Object.keys(this.listeners_).length > 0;\n };\n /**\n * @param {string} type Type.\n * @param {import(\"../events.js\").Listener} listener Listener.\n */\n Target.prototype.removeEventListener = function (type, listener) {\n var listeners = this.listeners_[type];\n if (listeners) {\n var index = listeners.indexOf(listener);\n if (index !== -1) {\n if (type in this.pendingRemovals_) {\n // make listener a no-op, and remove later in #dispatchEvent()\n listeners[index] = VOID;\n ++this.pendingRemovals_[type];\n }\n else {\n listeners.splice(index, 1);\n if (listeners.length === 0) {\n delete this.listeners_[type];\n }\n }\n }\n }\n };\n return Target;\n}(Disposable));\nexport default Target;\n//# sourceMappingURL=Target.js.map","/**\n * @module ol/events/EventType\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 * Generic error event. Triggered when an error occurs.\n * @event module:ol/events/Event~BaseEvent#error\n * @api\n */\n ERROR: 'error',\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//# sourceMappingURL=EventType.js.map","var __extends = (this && this.__extends) || (function () {\n var extendStatics = function (d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n return extendStatics(d, b);\n };\n return function (d, b) {\n extendStatics(d, b);\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n };\n})();\n/**\n * @module ol/Observable\n */\nimport { listen, unlistenByKey, listenOnce } from './events.js';\nimport EventTarget from './events/Target.js';\nimport EventType from './events/EventType.js';\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 */\nvar Observable = /** @class */ (function (_super) {\n __extends(Observable, _super);\n function Observable() {\n var _this = _super.call(this) || this;\n /**\n * @private\n * @type {number}\n */\n _this.revision_ = 0;\n return _this;\n }\n /**\n * Increases the revision counter and dispatches a 'change' event.\n * @api\n */\n Observable.prototype.changed = function () {\n ++this.revision_;\n this.dispatchEvent(EventType.CHANGE);\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 Observable.prototype.getRevision = function () {\n return this.revision_;\n };\n /**\n * Listen for a certain type of event.\n * @param {string|Array} type The event type or array of event types.\n * @param {import(\"./events.js\").ListenerFunction} listener The listener function.\n * @return {import(\"./events.js\").EventsKey|Array} 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 Observable.prototype.on = function (type, listener) {\n if (Array.isArray(type)) {\n var len = type.length;\n var keys = new Array(len);\n for (var i = 0; i < len; ++i) {\n keys[i] = listen(this, type[i], listener);\n }\n return keys;\n }\n else {\n return listen(this, /** @type {string} */ (type), listener);\n }\n };\n /**\n * Listen once for a certain type of event.\n * @param {string|Array} type The event type or array of event types.\n * @param {function(?): ?} listener The listener function.\n * @return {import(\"./events.js\").EventsKey|Array} 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 Observable.prototype.once = function (type, listener) {\n if (Array.isArray(type)) {\n var len = type.length;\n var keys = new Array(len);\n for (var i = 0; i < len; ++i) {\n keys[i] = listenOnce(this, type[i], listener);\n }\n return keys;\n }\n else {\n return listenOnce(this, /** @type {string} */ (type), listener);\n }\n };\n /**\n * Unlisten for a certain type of event.\n * @param {string|Array} type The event type or array of event types.\n * @param {function(?): ?} listener The listener function.\n * @api\n */\n Observable.prototype.un = function (type, listener) {\n if (Array.isArray(type)) {\n for (var i = 0, ii = type.length; i < ii; ++i) {\n this.removeEventListener(type[i], listener);\n }\n }\n else {\n this.removeEventListener(type, listener);\n }\n };\n return Observable;\n}(EventTarget));\n/**\n * Removes an event listener using the key returned by `on()` or `once()`.\n * @param {import(\"./events.js\").EventsKey|Array} 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 (var i = 0, ii = key.length; i < ii; ++i) {\n unlistenByKey(key[i]);\n }\n }\n else {\n unlistenByKey(/** @type {import(\"./events.js\").EventsKey} */ (key));\n }\n}\nexport default Observable;\n//# sourceMappingURL=Observable.js.map","var __extends = (this && this.__extends) || (function () {\n var extendStatics = function (d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n return extendStatics(d, b);\n };\n return function (d, b) {\n extendStatics(d, b);\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n };\n})();\n/**\n * @module ol/Object\n */\nimport { getUid } from './util.js';\nimport ObjectEventType from './ObjectEventType.js';\nimport Observable from './Observable.js';\nimport Event from './events/Event.js';\nimport { assign } from './obj.js';\n/**\n * @classdesc\n * Events emitted by {@link module:ol/Object~BaseObject} instances are instances of this type.\n */\nvar ObjectEvent = /** @class */ (function (_super) {\n __extends(ObjectEvent, _super);\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 function ObjectEvent(type, key, oldValue) {\n var _this = _super.call(this, type) || this;\n /**\n * The name of the property whose value is changing.\n * @type {string}\n * @api\n */\n _this.key = key;\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 return _this;\n }\n return ObjectEvent;\n}(Event));\nexport { ObjectEvent };\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 */\nvar BaseObject = /** @class */ (function (_super) {\n __extends(BaseObject, _super);\n /**\n * @param {Object=} opt_values An object with key-value pairs.\n */\n function BaseObject(opt_values) {\n var _this = _super.call(this) || this;\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 * @private\n * @type {!Object}\n */\n _this.values_ = {};\n if (opt_values !== undefined) {\n _this.setProperties(opt_values);\n }\n return _this;\n }\n /**\n * Gets a value.\n * @param {string} key Key name.\n * @return {*} Value.\n * @api\n */\n BaseObject.prototype.get = function (key) {\n var value;\n if (this.values_.hasOwnProperty(key)) {\n value = this.values_[key];\n }\n return value;\n };\n /**\n * Get a list of object property names.\n * @return {Array} List of property names.\n * @api\n */\n BaseObject.prototype.getKeys = function () {\n return Object.keys(this.values_);\n };\n /**\n * Get an object of all property names and values.\n * @return {Object} Object.\n * @api\n */\n BaseObject.prototype.getProperties = function () {\n return assign({}, this.values_);\n };\n /**\n * @param {string} key Key name.\n * @param {*} oldValue Old value.\n */\n BaseObject.prototype.notify = function (key, oldValue) {\n var 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 * 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 BaseObject.prototype.set = function (key, value, opt_silent) {\n if (opt_silent) {\n this.values_[key] = value;\n }\n else {\n var oldValue = this.values_[key];\n this.values_[key] = value;\n if (oldValue !== value) {\n this.notify(key, oldValue);\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} values Values.\n * @param {boolean=} opt_silent Update without triggering an event.\n * @api\n */\n BaseObject.prototype.setProperties = function (values, opt_silent) {\n for (var key in values) {\n this.set(key, values[key], opt_silent);\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 BaseObject.prototype.unset = function (key, opt_silent) {\n if (key in this.values_) {\n var oldValue = this.values_[key];\n delete this.values_[key];\n if (!opt_silent) {\n this.notify(key, oldValue);\n }\n }\n };\n return BaseObject;\n}(Observable));\n/**\n * @type {Object}\n */\nvar changeEventTypeCache = {};\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}\nexport default BaseObject;\n//# sourceMappingURL=Object.js.map","var __extends = (this && this.__extends) || (function () {\n var extendStatics = function (d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n return extendStatics(d, b);\n };\n return function (d, b) {\n extendStatics(d, b);\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n };\n})();\n/**\n * @module ol/Collection\n */\nimport AssertionError from './AssertionError.js';\nimport CollectionEventType from './CollectionEventType.js';\nimport BaseObject from './Object.js';\nimport Event from './events/Event.js';\n/**\n * @enum {string}\n * @private\n */\nvar Property = {\n LENGTH: 'length'\n};\n/**\n * @classdesc\n * Events emitted by {@link module:ol/Collection~Collection} instances are instances of this\n * type.\n */\nvar CollectionEvent = /** @class */ (function (_super) {\n __extends(CollectionEvent, _super);\n /**\n * @param {CollectionEventType} type Type.\n * @param {*=} opt_element Element.\n * @param {number=} opt_index The index of the added or removed element.\n */\n function CollectionEvent(type, opt_element, opt_index) {\n var _this = _super.call(this, type) || this;\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 * The index of the added or removed element.\n * @type {number}\n * @api\n */\n _this.index = opt_index;\n return _this;\n }\n return CollectionEvent;\n}(Event));\nexport { CollectionEvent };\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 * @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 */\nvar Collection = /** @class */ (function (_super) {\n __extends(Collection, _super);\n /**\n * @param {Array=} opt_array Array.\n * @param {Options=} opt_options Collection options.\n */\n function Collection(opt_array, opt_options) {\n var _this = _super.call(this) || this;\n var options = opt_options || {};\n /**\n * @private\n * @type {boolean}\n */\n _this.unique_ = !!options.unique;\n /**\n * @private\n * @type {!Array}\n */\n _this.array_ = opt_array ? opt_array : [];\n if (_this.unique_) {\n for (var i = 0, ii = _this.array_.length; i < ii; ++i) {\n _this.assertUnique_(_this.array_[i], i);\n }\n }\n _this.updateLength_();\n return _this;\n }\n /**\n * Remove all elements from the collection.\n * @api\n */\n Collection.prototype.clear = function () {\n while (this.getLength() > 0) {\n this.pop();\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} arr Array.\n * @return {Collection} This collection.\n * @api\n */\n Collection.prototype.extend = function (arr) {\n for (var i = 0, ii = arr.length; i < ii; ++i) {\n this.push(arr[i]);\n }\n return this;\n };\n /**\n * Iterate over each element, calling the provided callback.\n * @param {function(T, number, Array): *} 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 Collection.prototype.forEach = function (f) {\n var array = this.array_;\n for (var i = 0, ii = array.length; i < ii; ++i) {\n f(array[i], i, array);\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} Array.\n * @api\n */\n Collection.prototype.getArray = function () {\n return this.array_;\n };\n /**\n * Get the element at the provided index.\n * @param {number} index Index.\n * @return {T} Element.\n * @api\n */\n Collection.prototype.item = function (index) {\n return this.array_[index];\n };\n /**\n * Get the length of this collection.\n * @return {number} The length of the array.\n * @observable\n * @api\n */\n Collection.prototype.getLength = function () {\n return this.get(Property.LENGTH);\n };\n /**\n * Insert an element at the provided index.\n * @param {number} index Index.\n * @param {T} elem Element.\n * @api\n */\n Collection.prototype.insertAt = function (index, elem) {\n if (this.unique_) {\n this.assertUnique_(elem);\n }\n this.array_.splice(index, 0, elem);\n this.updateLength_();\n this.dispatchEvent(new CollectionEvent(CollectionEventType.ADD, elem, index));\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 Collection.prototype.pop = function () {\n return this.removeAt(this.getLength() - 1);\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 Collection.prototype.push = function (elem) {\n if (this.unique_) {\n this.assertUnique_(elem);\n }\n var n = this.getLength();\n this.insertAt(n, elem);\n return this.getLength();\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 Collection.prototype.remove = function (elem) {\n var arr = this.array_;\n for (var 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 * 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 Collection.prototype.removeAt = function (index) {\n var prev = this.array_[index];\n this.array_.splice(index, 1);\n this.updateLength_();\n this.dispatchEvent(new CollectionEvent(CollectionEventType.REMOVE, prev, index));\n return prev;\n };\n /**\n * Set the element at the provided index.\n * @param {number} index Index.\n * @param {T} elem Element.\n * @api\n */\n Collection.prototype.setAt = function (index, elem) {\n var n = this.getLength();\n if (index < n) {\n if (this.unique_) {\n this.assertUnique_(elem, index);\n }\n var prev = this.array_[index];\n this.array_[index] = elem;\n this.dispatchEvent(new CollectionEvent(CollectionEventType.REMOVE, prev, index));\n this.dispatchEvent(new CollectionEvent(CollectionEventType.ADD, elem, index));\n }\n else {\n for (var j = n; j < index; ++j) {\n this.insertAt(j, undefined);\n }\n this.insertAt(index, elem);\n }\n };\n /**\n * @private\n */\n Collection.prototype.updateLength_ = function () {\n this.set(Property.LENGTH, this.array_.length);\n };\n /**\n * @private\n * @param {T} elem Element.\n * @param {number=} opt_except Optional index to ignore.\n */\n Collection.prototype.assertUnique_ = function (elem, opt_except) {\n for (var 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 return Collection;\n}(BaseObject));\nexport default Collection;\n//# sourceMappingURL=Collection.js.map","/**\n * @module ol/asserts\n */\nimport AssertionError from './AssertionError.js';\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//# sourceMappingURL=asserts.js.map","var __extends = (this && this.__extends) || (function () {\n var extendStatics = function (d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n return extendStatics(d, b);\n };\n return function (d, b) {\n extendStatics(d, b);\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n };\n})();\n/**\n * @module ol/Feature\n */\nimport { assert } from './asserts.js';\nimport { listen, unlistenByKey } from './events.js';\nimport EventType from './events/EventType.js';\nimport BaseObject, { getChangeEventType } from './Object.js';\n/**\n * @typedef {typeof Feature|typeof import(\"./render/Feature.js\").default} FeatureClass\n */\n/**\n * @typedef {Feature|import(\"./render/Feature.js\").default} FeatureLike\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 */\nvar Feature = /** @class */ (function (_super) {\n __extends(Feature, _super);\n /**\n * @param {Geometry|Object=} 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 function Feature(opt_geometryOrProperties) {\n var _this = _super.call(this) || this;\n /**\n * @private\n * @type {number|string|undefined}\n */\n _this.id_ = undefined;\n /**\n * @type {string}\n * @private\n */\n _this.geometryName_ = 'geometry';\n /**\n * User provided style.\n * @private\n * @type {import(\"./style/Style.js\").StyleLike}\n */\n _this.style_ = null;\n /**\n * @private\n * @type {import(\"./style/Style.js\").StyleFunction|undefined}\n */\n _this.styleFunction_ = undefined;\n /**\n * @private\n * @type {?import(\"./events.js\").EventsKey}\n */\n _this.geometryChangeKey_ = null;\n _this.addEventListener(getChangeEventType(_this.geometryName_), _this.handleGeometryChanged_);\n if (opt_geometryOrProperties) {\n if (typeof /** @type {?} */ (opt_geometryOrProperties).getSimplifiedGeometry === 'function') {\n var geometry = /** @type {Geometry} */ (opt_geometryOrProperties);\n _this.setGeometry(geometry);\n }\n else {\n /** @type {Object} */\n var properties = opt_geometryOrProperties;\n _this.setProperties(properties);\n }\n }\n return _this;\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 Feature.prototype.clone = function () {\n var clone = new Feature(this.getProperties());\n clone.setGeometryName(this.getGeometryName());\n var geometry = this.getGeometry();\n if (geometry) {\n clone.setGeometry(geometry.clone());\n }\n var style = this.getStyle();\n if (style) {\n clone.setStyle(style);\n }\n return clone;\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 Feature.prototype.getGeometry = function () {\n return (\n /** @type {Geometry|undefined} */ (this.get(this.geometryName_)));\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 Feature.prototype.getId = function () {\n return this.id_;\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 Feature.prototype.getGeometryName = function () {\n return this.geometryName_;\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} The feature style.\n * @api\n */\n Feature.prototype.getStyle = function () {\n return this.style_;\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 Feature.prototype.getStyleFunction = function () {\n return this.styleFunction_;\n };\n /**\n * @private\n */\n Feature.prototype.handleGeometryChange_ = function () {\n this.changed();\n };\n /**\n * @private\n */\n Feature.prototype.handleGeometryChanged_ = function () {\n if (this.geometryChangeKey_) {\n unlistenByKey(this.geometryChangeKey_);\n this.geometryChangeKey_ = null;\n }\n var geometry = this.getGeometry();\n if (geometry) {\n this.geometryChangeKey_ = listen(geometry, EventType.CHANGE, this.handleGeometryChange_, this);\n }\n this.changed();\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 Feature.prototype.setGeometry = function (geometry) {\n this.set(this.geometryName_, geometry);\n };\n /**\n * Set the style for the feature. This can be a single style object, an array\n * of styles, or a function that takes a resolution and returns an array of\n * styles. If it is `null` the feature has no style (a `null` style).\n * @param {import(\"./style/Style.js\").StyleLike} style Style for this feature.\n * @api\n * @fires module:ol/events/Event~BaseEvent#event:change\n */\n Feature.prototype.setStyle = function (style) {\n this.style_ = style;\n this.styleFunction_ = !style ? undefined : createStyleFunction(style);\n this.changed();\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 Feature.prototype.setId = function (id) {\n this.id_ = id;\n this.changed();\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 Feature.prototype.setGeometryName = function (name) {\n this.removeEventListener(getChangeEventType(this.geometryName_), this.handleGeometryChanged_);\n this.geometryName_ = name;\n this.addEventListener(getChangeEventType(this.geometryName_), this.handleGeometryChanged_);\n this.handleGeometryChanged_();\n };\n return Feature;\n}(BaseObject));\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} 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 }\n else {\n /**\n * @type {Array}\n */\n var styles_1;\n if (Array.isArray(obj)) {\n styles_1 = obj;\n }\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 var style = /** @type {import(\"./style/Style.js\").default} */ (obj);\n styles_1 = [style];\n }\n return function () {\n return styles_1;\n };\n }\n}\nexport default Feature;\n//# sourceMappingURL=Feature.js.map","/**\n * @module ol/extent/Corner\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//# sourceMappingURL=Corner.js.map","/**\n * @module ol/extent/Relationship\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//# sourceMappingURL=Relationship.js.map","/**\n * @module ol/extent\n */\nimport { assert } from './asserts.js';\nimport Corner from './extent/Corner.js';\nimport Relationship from './extent/Relationship.js';\n/**\n * An array of numbers representing an extent: `[minx, miny, maxx, maxy]`.\n * @typedef {Array} Extent\n * @api\n */\n/**\n * Build an extent that includes all given coordinates.\n *\n * @param {Array} coordinates Coordinates.\n * @return {Extent} Bounding extent.\n * @api\n */\nexport function boundingExtent(coordinates) {\n var extent = createEmpty();\n for (var i = 0, ii = coordinates.length; i < ii; ++i) {\n extendCoordinate(extent, coordinates[i]);\n }\n return extent;\n}\n/**\n * @param {Array} xs Xs.\n * @param {Array} ys Ys.\n * @param {Extent=} opt_extent Destination extent.\n * @private\n * @return {Extent} Extent.\n */\nfunction _boundingExtentXYs(xs, ys, opt_extent) {\n var minX = Math.min.apply(null, xs);\n var minY = Math.min.apply(null, ys);\n var maxX = Math.max.apply(null, xs);\n var maxY = Math.max.apply(null, ys);\n return createOrUpdate(minX, minY, maxX, maxY, opt_extent);\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 }\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 * 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 }\n else {\n return extent.slice();\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 var dx, dy;\n if (x < extent[0]) {\n dx = extent[0] - x;\n }\n else if (extent[2] < x) {\n dx = x - extent[2];\n }\n else {\n dx = 0;\n }\n if (y < extent[1]) {\n dy = extent[1] - y;\n }\n else if (extent[3] < y) {\n dy = y - extent[3];\n }\n else {\n dy = 0;\n }\n return dx * dx + dy * dy;\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 * 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 extent1[0] <= extent2[0] && extent2[2] <= extent1[2] &&\n extent1[1] <= extent2[1] && extent2[3] <= extent1[3];\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 * 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 {Relationship} The relationship (bitwise compare with\n * import(\"./extent/Relationship.js\").Relationship).\n */\nexport function coordinateRelationship(extent, coordinate) {\n var minX = extent[0];\n var minY = extent[1];\n var maxX = extent[2];\n var maxY = extent[3];\n var x = coordinate[0];\n var y = coordinate[1];\n var relationship = Relationship.UNKNOWN;\n if (x < minX) {\n relationship = relationship | Relationship.LEFT;\n }\n else if (x > maxX) {\n relationship = relationship | Relationship.RIGHT;\n }\n if (y < minY) {\n relationship = relationship | Relationship.BELOW;\n }\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 * Create an empty extent.\n * @return {Extent} Empty extent.\n * @api\n */\nexport function createEmpty() {\n return [Infinity, Infinity, -Infinity, -Infinity];\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 }\n else {\n return [minX, minY, maxX, maxY];\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 * @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 var x = coordinate[0];\n var y = coordinate[1];\n return createOrUpdate(x, y, x, y, opt_extent);\n}\n/**\n * @param {Array} coordinates Coordinates.\n * @param {Extent=} opt_extent Extent.\n * @return {Extent} Extent.\n */\nexport function createOrUpdateFromCoordinates(coordinates, opt_extent) {\n var extent = createOrUpdateEmpty(opt_extent);\n return extendCoordinates(extent, coordinates);\n}\n/**\n * @param {Array} 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(flatCoordinates, offset, end, stride, opt_extent) {\n var extent = createOrUpdateEmpty(opt_extent);\n return extendFlatCoordinates(extent, flatCoordinates, offset, end, stride);\n}\n/**\n * @param {Array>} rings Rings.\n * @param {Extent=} opt_extent Extent.\n * @return {Extent} Extent.\n */\nexport function createOrUpdateFromRings(rings, opt_extent) {\n var extent = createOrUpdateEmpty(opt_extent);\n return extendRings(extent, rings);\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 extent1[0] == extent2[0] && extent1[2] == extent2[2] &&\n extent1[1] == extent2[1] && extent1[3] == extent2[3];\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 Math.abs(extent1[0] - extent2[0]) < tolerance && Math.abs(extent1[2] - extent2[2]) < tolerance &&\n Math.abs(extent1[1] - extent2[1]) < tolerance && Math.abs(extent1[3] - extent2[3]) < tolerance;\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 * @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 * @param {Extent} extent Extent.\n * @param {Array} coordinates Coordinates.\n * @return {Extent} Extent.\n */\nexport function extendCoordinates(extent, coordinates) {\n for (var i = 0, ii = coordinates.length; i < ii; ++i) {\n extendCoordinate(extent, coordinates[i]);\n }\n return extent;\n}\n/**\n * @param {Extent} extent Extent.\n * @param {Array} 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(extent, flatCoordinates, offset, end, stride) {\n for (; offset < end; offset += stride) {\n extendXY(extent, flatCoordinates[offset], flatCoordinates[offset + 1]);\n }\n return extent;\n}\n/**\n * @param {Extent} extent Extent.\n * @param {Array>} rings Rings.\n * @return {Extent} Extent.\n */\nexport function extendRings(extent, rings) {\n for (var i = 0, ii = rings.length; i < ii; ++i) {\n extendCoordinates(extent, rings[i]);\n }\n return extent;\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 * 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 var 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 * Get the size of an extent.\n * @param {Extent} extent Extent.\n * @return {number} Area.\n * @api\n */\nexport function getArea(extent) {\n var area = 0;\n if (!isEmpty(extent)) {\n area = getWidth(extent) * getHeight(extent);\n }\n return area;\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 * 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 * 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 * Get a corner coordinate of an extent.\n * @param {Extent} extent Extent.\n * @param {Corner} corner Corner.\n * @return {import(\"./coordinate.js\").Coordinate} Corner coordinate.\n */\nexport function getCorner(extent, corner) {\n var coordinate;\n if (corner === Corner.BOTTOM_LEFT) {\n coordinate = getBottomLeft(extent);\n }\n else if (corner === Corner.BOTTOM_RIGHT) {\n coordinate = getBottomRight(extent);\n }\n else if (corner === Corner.TOP_LEFT) {\n coordinate = getTopLeft(extent);\n }\n else if (corner === Corner.TOP_RIGHT) {\n coordinate = getTopRight(extent);\n }\n else {\n assert(false, 13); // Invalid corner\n }\n return coordinate;\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 var minX = Math.min(extent1[0], extent2[0]);\n var minY = Math.min(extent1[1], extent2[1]);\n var maxX = Math.max(extent1[2], extent2[2]);\n var maxY = Math.max(extent1[3], extent2[3]);\n return (maxX - minX) * (maxY - minY);\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(center, resolution, rotation, size, opt_extent) {\n var dx = resolution * size[0] / 2;\n var dy = resolution * size[1] / 2;\n var cosRotation = Math.cos(rotation);\n var sinRotation = Math.sin(rotation);\n var xCos = dx * cosRotation;\n var xSin = dx * sinRotation;\n var yCos = dy * cosRotation;\n var ySin = dy * sinRotation;\n var x = center[0];\n var y = center[1];\n var x0 = x - xCos + ySin;\n var x1 = x - xCos - ySin;\n var x2 = x + xCos - ySin;\n var x3 = x + xCos + ySin;\n var y0 = y - xSin - yCos;\n var y1 = y - xSin + yCos;\n var y2 = y + xSin + yCos;\n var y3 = y + xSin - yCos;\n 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);\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 * @param {Extent} extent1 Extent 1.\n * @param {Extent} extent2 Extent 2.\n * @return {number} Intersection area.\n */\nexport function getIntersectionArea(extent1, extent2) {\n var intersection = getIntersection(extent1, extent2);\n return getArea(intersection);\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 var intersection = opt_extent ? opt_extent : createEmpty();\n if (intersects(extent1, extent2)) {\n if (extent1[0] > extent2[0]) {\n intersection[0] = extent1[0];\n }\n else {\n intersection[0] = extent2[0];\n }\n if (extent1[1] > extent2[1]) {\n intersection[1] = extent1[1];\n }\n else {\n intersection[1] = extent2[1];\n }\n if (extent1[2] < extent2[2]) {\n intersection[2] = extent1[2];\n }\n else {\n intersection[2] = extent2[2];\n }\n if (extent1[3] < extent2[3]) {\n intersection[3] = extent1[3];\n }\n else {\n intersection[3] = extent2[3];\n }\n }\n else {\n createOrUpdateEmpty(intersection);\n }\n return intersection;\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 * 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 * 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 * 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 * 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 * 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 extent1[0] <= extent2[2] &&\n extent1[2] >= extent2[0] &&\n extent1[1] <= extent2[3] &&\n extent1[3] >= extent2[1];\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 * @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 }\n else {\n return extent;\n }\n}\n/**\n * @param {Extent} extent Extent.\n * @param {number} value Value.\n */\nexport function scaleFromCenter(extent, value) {\n var deltaX = ((extent[2] - extent[0]) / 2) * (value - 1);\n var 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 * 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 var intersects = false;\n var startRel = coordinateRelationship(extent, start);\n var endRel = coordinateRelationship(extent, end);\n if (startRel === Relationship.INTERSECTING ||\n endRel === Relationship.INTERSECTING) {\n intersects = true;\n }\n else {\n var minX = extent[0];\n var minY = extent[1];\n var maxX = extent[2];\n var maxY = extent[3];\n var startX = start[0];\n var startY = start[1];\n var endX = end[0];\n var endY = end[1];\n var slope = (endY - startY) / (endX - startX);\n var x = void 0, y = void 0;\n if (!!(endRel & Relationship.ABOVE) &&\n !(startRel & Relationship.ABOVE)) {\n // potentially intersects top\n x = endX - ((endY - maxY) / slope);\n intersects = x >= minX && x <= maxX;\n }\n if (!intersects && !!(endRel & Relationship.RIGHT) &&\n !(startRel & Relationship.RIGHT)) {\n // potentially intersects right\n y = endY - ((endX - maxX) * slope);\n intersects = y >= minY && y <= maxY;\n }\n if (!intersects && !!(endRel & Relationship.BELOW) &&\n !(startRel & Relationship.BELOW)) {\n // potentially intersects bottom\n x = endX - ((endY - minY) / slope);\n intersects = x >= minX && x <= maxX;\n }\n if (!intersects && !!(endRel & Relationship.LEFT) &&\n !(startRel & Relationship.LEFT)) {\n // potentially intersects left\n y = endY - ((endX - minX) * slope);\n intersects = y >= minY && y <= maxY;\n }\n }\n return intersects;\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 var coordinates = [];\n if (opt_stops > 1) {\n var width = extent[2] - extent[0];\n var height = extent[3] - extent[1];\n for (var i = 0; i < opt_stops; ++i) {\n 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);\n }\n }\n else {\n coordinates = [\n extent[0], extent[1],\n extent[2], extent[1],\n extent[2], extent[3],\n extent[0], extent[3]\n ];\n }\n transformFn(coordinates, coordinates, 2);\n var xs = [];\n var ys = [];\n for (var 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 * 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 var projectionExtent = projection.getExtent();\n var center = getCenter(extent);\n if (projection.canWrapX() && (center[0] < projectionExtent[0] || center[0] >= projectionExtent[2])) {\n var worldWidth = getWidth(projectionExtent);\n var worldsAway = Math.floor((center[0] - projectionExtent[0]) / worldWidth);\n var offset = (worldsAway * worldWidth);\n extent[0] -= offset;\n extent[2] -= offset;\n }\n return extent;\n}\n//# sourceMappingURL=extent.js.map","/**\n * @module ol/geom/GeometryLayout\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//# sourceMappingURL=GeometryLayout.js.map","/**\n * @module ol/geom/GeometryType\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//# sourceMappingURL=GeometryType.js.map","/**\n * @module ol/geom/flat/transform\n */\n/**\n * @param {Array} 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=} opt_dest Destination.\n * @return {Array} Transformed coordinates.\n */\nexport function transform2D(flatCoordinates, offset, end, stride, transform, opt_dest) {\n var dest = opt_dest ? opt_dest : [];\n var i = 0;\n for (var j = offset; j < end; j += stride) {\n var x = flatCoordinates[j];\n var 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 * @param {Array} 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} anchor Rotation anchor point.\n * @param {Array=} opt_dest Destination.\n * @return {Array} Transformed coordinates.\n */\nexport function rotate(flatCoordinates, offset, end, stride, angle, anchor, opt_dest) {\n var dest = opt_dest ? opt_dest : [];\n var cos = Math.cos(angle);\n var sin = Math.sin(angle);\n var anchorX = anchor[0];\n var anchorY = anchor[1];\n var i = 0;\n for (var j = offset; j < end; j += stride) {\n var deltaX = flatCoordinates[j] - anchorX;\n var deltaY = flatCoordinates[j + 1] - anchorY;\n dest[i++] = anchorX + deltaX * cos - deltaY * sin;\n dest[i++] = anchorY + deltaX * sin + deltaY * cos;\n for (var 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 * Scale the coordinates.\n * @param {Array} 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} anchor Scale anchor point.\n * @param {Array=} opt_dest Destination.\n * @return {Array} Transformed coordinates.\n */\nexport function scale(flatCoordinates, offset, end, stride, sx, sy, anchor, opt_dest) {\n var dest = opt_dest ? opt_dest : [];\n var anchorX = anchor[0];\n var anchorY = anchor[1];\n var i = 0;\n for (var j = offset; j < end; j += stride) {\n var deltaX = flatCoordinates[j] - anchorX;\n var deltaY = flatCoordinates[j + 1] - anchorY;\n dest[i++] = anchorX + sx * deltaX;\n dest[i++] = anchorY + sy * deltaY;\n for (var 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 * @param {Array} 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=} opt_dest Destination.\n * @return {Array} Transformed coordinates.\n */\nexport function translate(flatCoordinates, offset, end, stride, deltaX, deltaY, opt_dest) {\n var dest = opt_dest ? opt_dest : [];\n var i = 0;\n for (var j = offset; j < end; j += stride) {\n dest[i++] = flatCoordinates[j] + deltaX;\n dest[i++] = flatCoordinates[j + 1] + deltaY;\n for (var 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//# sourceMappingURL=transform.js.map","/**\n * @module ol/math\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 * 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 var cosh = (function () {\n // Wrapped in a iife, to save the overhead of checking for the native\n // implementation on every invocation.\n var cosh;\n if ('cosh' in Math) {\n // The environment supports the native Math.cosh function, use it…\n cosh = Math.cosh;\n }\n else {\n // … else, use the reference implementation of MDN:\n cosh = function (x) {\n var y = /** @type {Math} */ (Math).exp(x);\n return (y + 1 / y) / 2;\n };\n }\n return cosh;\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 var dx = x2 - x1;\n var dy = y2 - y1;\n if (dx !== 0 || dy !== 0) {\n var t = ((x - x1) * dx + (y - y1) * dy) / (dx * dx + dy * dy);\n if (t > 1) {\n x1 = x2;\n y1 = y2;\n }\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 * 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 var dx = x2 - x1;\n var dy = y2 - y1;\n return dx * dx + dy * dy;\n}\n/**\n * Solves system of linear equations using Gaussian elimination method.\n *\n * @param {Array>} mat Augmented matrix (n x n + 1 column)\n * in row-major order.\n * @return {Array} The resulting vector.\n */\nexport function solveLinearSystem(mat) {\n var n = mat.length;\n for (var i = 0; i < n; i++) {\n // Find max in the i-th column (ignoring i - 1 first rows)\n var maxRow = i;\n var maxEl = Math.abs(mat[i][i]);\n for (var r = i + 1; r < n; r++) {\n var absValue = Math.abs(mat[r][i]);\n if (absValue > maxEl) {\n maxEl = absValue;\n maxRow = r;\n }\n }\n if (maxEl === 0) {\n return null; // matrix is singular\n }\n // Swap max row with i-th (current) row\n var tmp = mat[maxRow];\n mat[maxRow] = mat[i];\n mat[i] = tmp;\n // Subtract the i-th row to make all the remaining rows 0 in the i-th column\n for (var j = i + 1; j < n; j++) {\n var coef = -mat[j][i] / mat[i][i];\n for (var k = i; k < n + 1; k++) {\n if (i == k) {\n mat[j][k] = 0;\n }\n else {\n mat[j][k] += coef * mat[i][k];\n }\n }\n }\n }\n // Solve Ax=b for upper triangular matrix A (mat)\n var x = new Array(n);\n for (var l = n - 1; l >= 0; l--) {\n x[l] = mat[l][n] / mat[l][l];\n for (var m = l - 1; m >= 0; m--) {\n mat[m][n] -= mat[m][l] * x[l];\n }\n }\n return x;\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 * 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 * 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 var r = a % b;\n return r * b < 0 ? r + b : r;\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//# sourceMappingURL=math.js.map","/**\n * @module ol/sphere\n */\nimport { toRadians, toDegrees } from './math.js';\nimport GeometryType from './geom/GeometryType.js';\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 * 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 var DEFAULT_RADIUS = 6371008.8;\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 var radius = opt_radius || DEFAULT_RADIUS;\n var lat1 = toRadians(c1[1]);\n var lat2 = toRadians(c2[1]);\n var deltaLatBy2 = (lat2 - lat1) / 2;\n var deltaLonBy2 = toRadians(c2[0] - c1[0]) / 2;\n var a = Math.sin(deltaLatBy2) * Math.sin(deltaLatBy2) +\n Math.sin(deltaLonBy2) * Math.sin(deltaLonBy2) *\n Math.cos(lat1) * Math.cos(lat2);\n return 2 * radius * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));\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 var length = 0;\n for (var 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 * 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 var options = opt_options || {};\n var radius = options.radius || DEFAULT_RADIUS;\n var projection = options.projection || 'EPSG:3857';\n var type = geometry.getType();\n if (type !== GeometryType.GEOMETRY_COLLECTION) {\n geometry = geometry.clone().transform(projection, 'EPSG:4326');\n }\n var length = 0;\n var 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 var 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 * 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} 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 var area = 0;\n var len = coordinates.length;\n var x1 = coordinates[len - 1][0];\n var y1 = coordinates[len - 1][1];\n for (var i = 0; i < len; i++) {\n var x2 = coordinates[i][0];\n var y2 = coordinates[i][1];\n area += toRadians(x2 - x1) *\n (2 + Math.sin(toRadians(y1)) +\n Math.sin(toRadians(y2)));\n x1 = x2;\n y1 = y2;\n }\n return area * radius * radius / 2.0;\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 var options = opt_options || {};\n var radius = options.radius || DEFAULT_RADIUS;\n var projection = options.projection || 'EPSG:3857';\n var type = geometry.getType();\n if (type !== GeometryType.GEOMETRY_COLLECTION) {\n geometry = geometry.clone().transform(projection, 'EPSG:4326');\n }\n var area = 0;\n var 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 var 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 * 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 var radius = opt_radius || DEFAULT_RADIUS;\n var lat1 = toRadians(c1[1]);\n var lon1 = toRadians(c1[0]);\n var dByR = distance / radius;\n var lat = Math.asin(Math.sin(lat1) * Math.cos(dByR) +\n Math.cos(lat1) * Math.sin(dByR) * Math.cos(bearing));\n var lon = lon1 + Math.atan2(Math.sin(bearing) * Math.sin(dByR) * Math.cos(lat1), Math.cos(dByR) - Math.sin(lat1) * Math.sin(lat));\n return [toDegrees(lon), toDegrees(lat)];\n}\n//# sourceMappingURL=sphere.js.map","/**\n * @module ol/proj/Units\n */\n/**\n * Projection units: `'degrees'`, `'ft'`, `'m'`, `'pixels'`, `'tile-pixels'` or\n * `'us-ft'`.\n * @enum {string}\n */\nvar 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 * Meters per unit lookup table.\n * @const\n * @type {Object}\n * @api\n */\nexport var 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;\nexport default Units;\n//# sourceMappingURL=Units.js.map","/**\n * @module ol/proj/Projection\n */\nimport { METERS_PER_UNIT } from './Units.js';\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 * @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 */\nvar Projection = /** @class */ (function () {\n /**\n * @param {Options} options Projection options.\n */\n function Projection(options) {\n /**\n * @private\n * @type {string}\n */\n this.code_ = options.code;\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 * 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 * 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_ = options.worldExtent !== undefined ?\n options.worldExtent : null;\n /**\n * @private\n * @type {string}\n */\n this.axisOrientation_ = options.axisOrientation !== undefined ?\n options.axisOrientation : 'enu';\n /**\n * @private\n * @type {boolean}\n */\n this.global_ = options.global !== undefined ? options.global : false;\n /**\n * @private\n * @type {boolean}\n */\n this.canWrapX_ = !!(this.global_ && this.extent_);\n /**\n * @private\n * @type {function(number, import(\"../coordinate.js\").Coordinate):number|undefined}\n */\n this.getPointResolutionFunc_ = options.getPointResolution;\n /**\n * @private\n * @type {import(\"../tilegrid/TileGrid.js\").default}\n */\n this.defaultTileGrid_ = null;\n /**\n * @private\n * @type {number|undefined}\n */\n this.metersPerUnit_ = options.metersPerUnit;\n }\n /**\n * @return {boolean} The projection is suitable for wrapping the x-axis\n */\n Projection.prototype.canWrapX = function () {\n return this.canWrapX_;\n };\n /**\n * Get the code for this projection, e.g. 'EPSG:4326'.\n * @return {string} Code.\n * @api\n */\n Projection.prototype.getCode = function () {\n return this.code_;\n };\n /**\n * Get the validity extent for this projection.\n * @return {import(\"../extent.js\").Extent} Extent.\n * @api\n */\n Projection.prototype.getExtent = function () {\n return this.extent_;\n };\n /**\n * Get the units of this projection.\n * @return {import(\"./Units.js\").default} Units.\n * @api\n */\n Projection.prototype.getUnits = function () {\n return this.units_;\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 Projection.prototype.getMetersPerUnit = function () {\n return this.metersPerUnit_ || METERS_PER_UNIT[this.units_];\n };\n /**\n * Get the world extent for this projection.\n * @return {import(\"../extent.js\").Extent} Extent.\n * @api\n */\n Projection.prototype.getWorldExtent = function () {\n return this.worldExtent_;\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 Projection.prototype.getAxisOrientation = function () {\n return this.axisOrientation_;\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 Projection.prototype.isGlobal = function () {\n return this.global_;\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 Projection.prototype.setGlobal = function (global) {\n this.global_ = global;\n this.canWrapX_ = !!(global && this.extent_);\n };\n /**\n * @return {import(\"../tilegrid/TileGrid.js\").default} The default tile grid.\n */\n Projection.prototype.getDefaultTileGrid = function () {\n return this.defaultTileGrid_;\n };\n /**\n * @param {import(\"../tilegrid/TileGrid.js\").default} tileGrid The default tile grid.\n */\n Projection.prototype.setDefaultTileGrid = function (tileGrid) {\n this.defaultTileGrid_ = tileGrid;\n };\n /**\n * Set the validity extent for this projection.\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @api\n */\n Projection.prototype.setExtent = function (extent) {\n this.extent_ = extent;\n this.canWrapX_ = !!(this.global_ && extent);\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 Projection.prototype.setWorldExtent = function (worldExtent) {\n this.worldExtent_ = worldExtent;\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 Projection.prototype.setGetPointResolution = function (func) {\n this.getPointResolutionFunc_ = func;\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 Projection.prototype.getPointResolutionFunc = function () {\n return this.getPointResolutionFunc_;\n };\n return Projection;\n}());\nexport default Projection;\n//# sourceMappingURL=Projection.js.map","var __extends = (this && this.__extends) || (function () {\n var extendStatics = function (d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n return extendStatics(d, b);\n };\n return function (d, b) {\n extendStatics(d, b);\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n };\n})();\n/**\n * @module ol/proj/epsg3857\n */\nimport { cosh } from '../math.js';\nimport Projection from './Projection.js';\nimport Units from './Units.js';\n/**\n * Radius of WGS84 sphere\n *\n * @const\n * @type {number}\n */\nexport var RADIUS = 6378137;\n/**\n * @const\n * @type {number}\n */\nexport var HALF_SIZE = Math.PI * RADIUS;\n/**\n * @const\n * @type {import(\"../extent.js\").Extent}\n */\nexport var EXTENT = [\n -HALF_SIZE, -HALF_SIZE,\n HALF_SIZE, HALF_SIZE\n];\n/**\n * @const\n * @type {import(\"../extent.js\").Extent}\n */\nexport var WORLD_EXTENT = [-180, -85, 180, 85];\n/**\n * @classdesc\n * Projection object for web/spherical Mercator (EPSG:3857).\n */\nvar EPSG3857Projection = /** @class */ (function (_super) {\n __extends(EPSG3857Projection, _super);\n /**\n * @param {string} code Code.\n */\n function EPSG3857Projection(code) {\n return _super.call(this, {\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 }) || this;\n }\n return EPSG3857Projection;\n}(Projection));\n/**\n * Projections equal to EPSG:3857.\n *\n * @const\n * @type {Array}\n */\nexport var 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 * Transformation from EPSG:4326 to EPSG:3857.\n *\n * @param {Array} input Input array of coordinate values.\n * @param {Array=} opt_output Output array of coordinate values.\n * @param {number=} opt_dimension Dimension (default is `2`).\n * @return {Array} Output array of coordinate values.\n */\nexport function fromEPSG4326(input, opt_output, opt_dimension) {\n var length = input.length;\n var dimension = opt_dimension > 1 ? opt_dimension : 2;\n var output = opt_output;\n if (output === undefined) {\n if (dimension > 2) {\n // preserve values beyond second dimension\n output = input.slice();\n }\n else {\n output = new Array(length);\n }\n }\n var halfSize = HALF_SIZE;\n for (var i = 0; i < length; i += dimension) {\n output[i] = halfSize * input[i] / 180;\n var y = RADIUS *\n Math.log(Math.tan(Math.PI * (+input[i + 1] + 90) / 360));\n if (y > halfSize) {\n y = halfSize;\n }\n else if (y < -halfSize) {\n y = -halfSize;\n }\n output[i + 1] = y;\n }\n return output;\n}\n/**\n * Transformation from EPSG:3857 to EPSG:4326.\n *\n * @param {Array} input Input array of coordinate values.\n * @param {Array=} opt_output Output array of coordinate values.\n * @param {number=} opt_dimension Dimension (default is `2`).\n * @return {Array} Output array of coordinate values.\n */\nexport function toEPSG4326(input, opt_output, opt_dimension) {\n var length = input.length;\n var dimension = opt_dimension > 1 ? opt_dimension : 2;\n var output = opt_output;\n if (output === undefined) {\n if (dimension > 2) {\n // preserve values beyond second dimension\n output = input.slice();\n }\n else {\n output = new Array(length);\n }\n }\n for (var i = 0; i < length; i += dimension) {\n output[i] = 180 * input[i] / HALF_SIZE;\n output[i + 1] = 360 * Math.atan(Math.exp(input[i + 1] / RADIUS)) / Math.PI - 90;\n }\n return output;\n}\n//# sourceMappingURL=epsg3857.js.map","var __extends = (this && this.__extends) || (function () {\n var extendStatics = function (d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n return extendStatics(d, b);\n };\n return function (d, b) {\n extendStatics(d, b);\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n };\n})();\n/**\n * @module ol/proj/epsg4326\n */\nimport Projection from './Projection.js';\nimport Units from './Units.js';\n/**\n * Semi-major radius of the WGS84 ellipsoid.\n *\n * @const\n * @type {number}\n */\nexport var RADIUS = 6378137;\n/**\n * Extent of the EPSG:4326 projection which is the whole world.\n *\n * @const\n * @type {import(\"../extent.js\").Extent}\n */\nexport var EXTENT = [-180, -90, 180, 90];\n/**\n * @const\n * @type {number}\n */\nexport var METERS_PER_UNIT = Math.PI * RADIUS / 180;\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 */\nvar EPSG4326Projection = /** @class */ (function (_super) {\n __extends(EPSG4326Projection, _super);\n /**\n * @param {string} code Code.\n * @param {string=} opt_axisOrientation Axis orientation.\n */\n function EPSG4326Projection(code, opt_axisOrientation) {\n return _super.call(this, {\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 }) || this;\n }\n return EPSG4326Projection;\n}(Projection));\n/**\n * Projections equal to EPSG:4326.\n *\n * @const\n * @type {Array}\n */\nexport var 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//# sourceMappingURL=epsg4326.js.map","/**\n * @module ol/proj/transforms\n */\nimport { isEmpty } from '../obj.js';\n/**\n * @private\n * @type {!Object>}\n */\nvar transforms = {};\n/**\n * Clear the transform cache.\n */\nexport function clear() {\n transforms = {};\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 var sourceCode = source.getCode();\n var destinationCode = destination.getCode();\n if (!(sourceCode in transforms)) {\n transforms[sourceCode] = {};\n }\n transforms[sourceCode][destinationCode] = transformFn;\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 var sourceCode = source.getCode();\n var destinationCode = destination.getCode();\n var 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 * 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 var transform;\n if (sourceCode in transforms && destinationCode in transforms[sourceCode]) {\n transform = transforms[sourceCode][destinationCode];\n }\n return transform;\n}\n//# sourceMappingURL=transforms.js.map","/**\n * @module ol/proj/projections\n */\n/**\n * @type {Object}\n */\nvar cache = {};\n/**\n * Clear the projections cache.\n */\nexport function clear() {\n cache = {};\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 * 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//# sourceMappingURL=projections.js.map","/**\n * @module ol/proj\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 { getDistance } from './sphere.js';\nimport { applyTransform } from './extent.js';\nimport { modulo } from './math.js';\nimport { toEPSG4326, fromEPSG4326, PROJECTIONS as EPSG3857_PROJECTIONS } from './proj/epsg3857.js';\nimport { PROJECTIONS as EPSG4326_PROJECTIONS } from './proj/epsg4326.js';\nimport Projection from './proj/Projection.js';\nimport Units, { METERS_PER_UNIT } from './proj/Units.js';\nimport { add as addTransformFunc, clear as clearTransformFuncs, get as getTransformFunc } from './proj/transforms.js';\nimport { add as addProj, clear as clearProj, get as getProj } from './proj/projections.js';\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 * 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, Array=, number=): Array} TransformFunction\n * @api\n */\nexport { METERS_PER_UNIT };\nexport { Projection };\n/**\n * @param {Array} input Input coordinate array.\n * @param {Array=} opt_output Output array of coordinate values.\n * @param {number=} opt_dimension Dimension.\n * @return {Array} Output coordinate array (new array, same coordinate\n * values).\n */\nexport function cloneTransform(input, opt_output, opt_dimension) {\n var output;\n if (opt_output !== undefined) {\n for (var i = 0, ii = input.length; i < ii; ++i) {\n opt_output[i] = input[i];\n }\n output = opt_output;\n }\n else {\n output = input.slice();\n }\n return output;\n}\n/**\n * @param {Array} input Input coordinate array.\n * @param {Array=} opt_output Output array of coordinate values.\n * @param {number=} opt_dimension Dimension.\n * @return {Array} 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 (var 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 * 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 * @param {Array} projections Projections.\n */\nexport function addProjections(projections) {\n projections.forEach(addProjection);\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 * 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 {Units=} 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 var pointResolution;\n var getter = projection.getPointResolutionFunc();\n if (getter) {\n pointResolution = getter(resolution, point);\n if (opt_units && opt_units !== projection.getUnits()) {\n var metersPerUnit = projection.getMetersPerUnit();\n if (metersPerUnit) {\n pointResolution = pointResolution * metersPerUnit / METERS_PER_UNIT[opt_units];\n }\n }\n }\n else {\n var units = projection.getUnits();\n if (units == Units.DEGREES && !opt_units || opt_units == Units.DEGREES) {\n pointResolution = resolution;\n }\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 var toEPSG4326_1 = getTransformFromProjections(projection, get('EPSG:4326'));\n var vertices = [\n point[0] - resolution / 2, point[1],\n point[0] + resolution / 2, point[1],\n point[0], point[1] - resolution / 2,\n point[0], point[1] + resolution / 2\n ];\n vertices = toEPSG4326_1(vertices, vertices, 2);\n var width = getDistance(vertices.slice(0, 2), vertices.slice(2, 4));\n var height = getDistance(vertices.slice(4, 6), vertices.slice(6, 8));\n pointResolution = (width + height) / 2;\n var 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 * Registers transformation functions that don't alter coordinates. Those allow\n * to transform between projections with equal meaning.\n *\n * @param {Array} 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 * Registers transformation functions to convert coordinates in any projection\n * in projection1 to any projection in projection2.\n *\n * @param {Array} projections1 Projections with equal\n * meaning.\n * @param {Array} 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(projections1, projections2, forwardTransform, inverseTransform) {\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 * Clear all cached projections and transforms.\n */\nexport function clearAllProjections() {\n clearProj();\n clearTransformFuncs();\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 }\n else if (typeof projection === 'string') {\n return get(projection);\n }\n else {\n return (\n /** @type {Projection} */ (projection));\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} input Input.\n * @param {Array=} opt_output Output.\n * @param {number=} opt_dimension Dimension.\n * @return {Array} Output.\n */\n function (input, opt_output, opt_dimension) {\n var length = input.length;\n var dimension = opt_dimension !== undefined ? opt_dimension : 2;\n var output = opt_output !== undefined ? opt_output : new Array(length);\n for (var i = 0; i < length; i += dimension) {\n var point = coordTransform([input[i], input[i + 1]]);\n output[i] = point[0];\n output[i + 1] = point[1];\n for (var j = dimension - 1; j >= 2; --j) {\n output[i + j] = input[i + j];\n }\n }\n return output;\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 var sourceProj = get(source);\n var destProj = get(destination);\n addTransformFunc(sourceProj, destProj, createTransformFromCoordinateTransform(forward));\n addTransformFunc(destProj, sourceProj, createTransformFromCoordinateTransform(inverse));\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(coordinate, 'EPSG:4326', opt_projection !== undefined ? opt_projection : 'EPSG:3857');\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 var lonLat = transform(coordinate, opt_projection !== undefined ? opt_projection : 'EPSG:3857', 'EPSG:4326');\n var lon = lonLat[0];\n if (lon < -180 || lon > 180) {\n lonLat[0] = modulo(lon + 180, 360) - 180;\n }\n return lonLat;\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 var equalUnits = projection1.getUnits() === projection2.getUnits();\n if (projection1.getCode() === projection2.getCode()) {\n return equalUnits;\n }\n else {\n var transformFunc = getTransformFromProjections(projection1, projection2);\n return transformFunc === cloneTransform && equalUnits;\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(sourceProjection, destinationProjection) {\n var sourceCode = sourceProjection.getCode();\n var destinationCode = destinationProjection.getCode();\n var transformFunc = getTransformFunc(sourceCode, destinationCode);\n if (!transformFunc) {\n transformFunc = identityTransform;\n }\n return transformFunc;\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 var sourceProjection = get(source);\n var destinationProjection = get(destination);\n return getTransformFromProjections(sourceProjection, destinationProjection);\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 var transformFunc = getTransform(source, destination);\n return transformFunc(coordinate, undefined, coordinate.length);\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 var transformFunc = getTransform(source, destination);\n return applyTransform(extent, transformFunc, undefined, opt_stops);\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(point, sourceProjection, destinationProjection) {\n var transformFunc = getTransformFromProjections(sourceProjection, destinationProjection);\n return transformFunc(point);\n}\n/**\n * @type {?Projection}\n */\nvar userProjection = null;\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 * 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 * 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 * 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 * Return a coordinate transformed into the user projection. If no user projection\n * is set, the original coordinate is returned.\n * @param {Array} coordinate Input coordinate.\n * @param {ProjectionLike} sourceProjection The input coordinate projection.\n * @returns {Array} 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 * Return a coordinate transformed from the user projection. If no user projection\n * is set, the original coordinate is returned.\n * @param {Array} coordinate Input coordinate.\n * @param {ProjectionLike} destProjection The destination projection.\n * @returns {Array} 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 * 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 * 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 * 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(EPSG4326_PROJECTIONS, EPSG3857_PROJECTIONS, fromEPSG4326, toEPSG4326);\n}\naddCommon();\n//# sourceMappingURL=proj.js.map","/**\n * @module ol/transform\n */\nimport { assert } from './asserts.js';\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} Transform\n * @api\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 * @private\n * @type {Transform}\n */\nvar tmp_ = new Array(6);\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 * 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 * 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 var a1 = transform1[0];\n var b1 = transform1[1];\n var c1 = transform1[2];\n var d1 = transform1[3];\n var e1 = transform1[4];\n var f1 = transform1[5];\n var a2 = transform2[0];\n var b2 = transform2[1];\n var c2 = transform2[2];\n var d2 = transform2[3];\n var e2 = transform2[4];\n var f2 = transform2[5];\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 return transform1;\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 * 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 * 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 var x = coordinate[0];\n var 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 * 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 var cos = Math.cos(angle);\n var sin = Math.sin(angle);\n return multiply(transform, set(tmp_, cos, sin, -sin, cos, 0, 0));\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 * 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 * 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 * 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 var sin = Math.sin(angle);\n var 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 * 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 * 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 * 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 var det = determinant(source);\n assert(det !== 0, 32); // Transformation matrix cannot be inverted\n var a = source[0];\n var b = source[1];\n var c = source[2];\n var d = source[3];\n var e = source[4];\n var f = source[5];\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 return target;\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 * 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//# sourceMappingURL=transform.js.map","var __extends = (this && this.__extends) || (function () {\n var extendStatics = function (d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n return extendStatics(d, b);\n };\n return function (d, b) {\n extendStatics(d, b);\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n };\n})();\n/**\n * @module ol/geom/Geometry\n */\nimport { abstract } from '../util.js';\nimport BaseObject from '../Object.js';\nimport { createEmpty, getHeight, returnOrUpdate } from '../extent.js';\nimport { transform2D } from './flat/transform.js';\nimport { get as getProjection, getTransform } from '../proj.js';\nimport Units from '../proj/Units.js';\nimport { create as createTransform, compose as composeTransform } from '../transform.js';\nimport { memoizeOne } from '../functions.js';\n/**\n * @type {import(\"../transform.js\").Transform}\n */\nvar tmpTransform = createTransform();\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 */\nvar Geometry = /** @class */ (function (_super) {\n __extends(Geometry, _super);\n function Geometry() {\n var _this = _super.call(this) || this;\n /**\n * @private\n * @type {import(\"../extent.js\").Extent}\n */\n _this.extent_ = createEmpty();\n /**\n * @private\n * @type {number}\n */\n _this.extentRevision_ = -1;\n /**\n * @protected\n * @type {number}\n */\n _this.simplifiedGeometryMaxMinSquaredTolerance = 0;\n /**\n * @protected\n * @type {number}\n */\n _this.simplifiedGeometryRevision = 0;\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 (revision, squaredTolerance, opt_transform) {\n if (!opt_transform) {\n return this.getSimplifiedGeometry(squaredTolerance);\n }\n var clone = this.clone();\n clone.applyTransform(opt_transform);\n return clone.getSimplifiedGeometry(squaredTolerance);\n });\n return _this;\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 Geometry.prototype.simplifyTransformed = function (squaredTolerance, opt_transform) {\n return this.simplifyTransformedInternal(this.getRevision(), squaredTolerance, opt_transform);\n };\n /**\n * Make a complete copy of the geometry.\n * @abstract\n * @return {!Geometry} Clone.\n */\n Geometry.prototype.clone = function () {\n return abstract();\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 Geometry.prototype.closestPointXY = function (x, y, closestPoint, minSquaredDistance) {\n return abstract();\n };\n /**\n * @param {number} x X.\n * @param {number} y Y.\n * @return {boolean} Contains (x, y).\n */\n Geometry.prototype.containsXY = function (x, y) {\n var coord = this.getClosestPoint([x, y]);\n return coord[0] === x && coord[1] === y;\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 Geometry.prototype.getClosestPoint = function (point, opt_closestPoint) {\n var closestPoint = opt_closestPoint ? opt_closestPoint : [NaN, NaN];\n this.closestPointXY(point[0], point[1], closestPoint, Infinity);\n return closestPoint;\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 Geometry.prototype.intersectsCoordinate = function (coordinate) {\n return this.containsXY(coordinate[0], coordinate[1]);\n };\n /**\n * @abstract\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @protected\n * @return {import(\"../extent.js\").Extent} extent Extent.\n */\n Geometry.prototype.computeExtent = function (extent) {\n return abstract();\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 Geometry.prototype.getExtent = function (opt_extent) {\n if (this.extentRevision_ != this.getRevision()) {\n this.extent_ = this.computeExtent(this.extent_);\n this.extentRevision_ = this.getRevision();\n }\n return returnOrUpdate(this.extent_, opt_extent);\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 Geometry.prototype.rotate = function (angle, anchor) {\n abstract();\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\n * 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 Geometry.prototype.scale = function (sx, opt_sy, opt_anchor) {\n abstract();\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 Geometry.prototype.simplify = function (tolerance) {\n return this.getSimplifiedGeometry(tolerance * tolerance);\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 Geometry.prototype.getSimplifiedGeometry = function (squaredTolerance) {\n return abstract();\n };\n /**\n * Get the type of this geometry.\n * @abstract\n * @return {import(\"./GeometryType.js\").default} Geometry type.\n */\n Geometry.prototype.getType = function () {\n return abstract();\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 Geometry.prototype.applyTransform = function (transformFn) {\n abstract();\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 Geometry.prototype.intersectsExtent = function (extent) {\n return abstract();\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 Geometry.prototype.translate = function (deltaX, deltaY) {\n abstract();\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 Geometry.prototype.transform = function (source, destination) {\n /** @type {import(\"../proj/Projection.js\").default} */\n var sourceProj = getProjection(source);\n var transformFn = sourceProj.getUnits() == Units.TILE_PIXELS ?\n function (inCoordinates, outCoordinates, stride) {\n var pixelExtent = sourceProj.getExtent();\n var projectedExtent = sourceProj.getWorldExtent();\n var scale = getHeight(projectedExtent) / getHeight(pixelExtent);\n composeTransform(tmpTransform, projectedExtent[0], projectedExtent[3], scale, -scale, 0, 0, 0);\n transform2D(inCoordinates, 0, inCoordinates.length, stride, tmpTransform, outCoordinates);\n return getTransform(sourceProj, destination)(inCoordinates, outCoordinates, stride);\n } :\n getTransform(sourceProj, destination);\n this.applyTransform(transformFn);\n return this;\n };\n return Geometry;\n}(BaseObject));\nexport default Geometry;\n//# sourceMappingURL=Geometry.js.map","var __extends = (this && this.__extends) || (function () {\n var extendStatics = function (d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n return extendStatics(d, b);\n };\n return function (d, b) {\n extendStatics(d, b);\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n };\n})();\n/**\n * @module ol/geom/SimpleGeometry\n */\nimport { abstract } from '../util.js';\nimport { createOrUpdateFromFlatCoordinates, getCenter } from '../extent.js';\nimport Geometry from './Geometry.js';\nimport GeometryLayout from './GeometryLayout.js';\nimport { rotate, scale, translate, transform2D } from './flat/transform.js';\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 */\nvar SimpleGeometry = /** @class */ (function (_super) {\n __extends(SimpleGeometry, _super);\n function SimpleGeometry() {\n var _this = _super.call(this) || this;\n /**\n * @protected\n * @type {GeometryLayout}\n */\n _this.layout = GeometryLayout.XY;\n /**\n * @protected\n * @type {number}\n */\n _this.stride = 2;\n /**\n * @protected\n * @type {Array}\n */\n _this.flatCoordinates = null;\n return _this;\n }\n /**\n * @inheritDoc\n */\n SimpleGeometry.prototype.computeExtent = function (extent) {\n return createOrUpdateFromFlatCoordinates(this.flatCoordinates, 0, this.flatCoordinates.length, this.stride, extent);\n };\n /**\n * @abstract\n * @return {Array<*>} Coordinates.\n */\n SimpleGeometry.prototype.getCoordinates = function () {\n return abstract();\n };\n /**\n * Return the first coordinate of the geometry.\n * @return {import(\"../coordinate.js\").Coordinate} First coordinate.\n * @api\n */\n SimpleGeometry.prototype.getFirstCoordinate = function () {\n return this.flatCoordinates.slice(0, this.stride);\n };\n /**\n * @return {Array} Flat coordinates.\n */\n SimpleGeometry.prototype.getFlatCoordinates = function () {\n return this.flatCoordinates;\n };\n /**\n * Return the last coordinate of the geometry.\n * @return {import(\"../coordinate.js\").Coordinate} Last point.\n * @api\n */\n SimpleGeometry.prototype.getLastCoordinate = function () {\n return this.flatCoordinates.slice(this.flatCoordinates.length - this.stride);\n };\n /**\n * Return the {@link module:ol/geom/GeometryLayout layout} of the geometry.\n * @return {GeometryLayout} Layout.\n * @api\n */\n SimpleGeometry.prototype.getLayout = function () {\n return this.layout;\n };\n /**\n * @inheritDoc\n */\n SimpleGeometry.prototype.getSimplifiedGeometry = function (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 (squaredTolerance < 0 ||\n (this.simplifiedGeometryMaxMinSquaredTolerance !== 0 &&\n squaredTolerance <= this.simplifiedGeometryMaxMinSquaredTolerance)) {\n return this;\n }\n var simplifiedGeometry = this.getSimplifiedGeometryInternal(squaredTolerance);\n var simplifiedFlatCoordinates = simplifiedGeometry.getFlatCoordinates();\n if (simplifiedFlatCoordinates.length < this.flatCoordinates.length) {\n return simplifiedGeometry;\n }\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 * @param {number} squaredTolerance Squared tolerance.\n * @return {SimpleGeometry} Simplified geometry.\n * @protected\n */\n SimpleGeometry.prototype.getSimplifiedGeometryInternal = function (squaredTolerance) {\n return this;\n };\n /**\n * @return {number} Stride.\n */\n SimpleGeometry.prototype.getStride = function () {\n return this.stride;\n };\n /**\n * @param {GeometryLayout} layout Layout.\n * @param {Array} flatCoordinates Flat coordinates.\n */\n SimpleGeometry.prototype.setFlatCoordinates = function (layout, flatCoordinates) {\n this.stride = getStrideForLayout(layout);\n this.layout = layout;\n this.flatCoordinates = flatCoordinates;\n };\n /**\n * @abstract\n * @param {!Array<*>} coordinates Coordinates.\n * @param {GeometryLayout=} opt_layout Layout.\n */\n SimpleGeometry.prototype.setCoordinates = function (coordinates, opt_layout) {\n abstract();\n };\n /**\n * @param {GeometryLayout|undefined} layout Layout.\n * @param {Array<*>} coordinates Coordinates.\n * @param {number} nesting Nesting.\n * @protected\n */\n SimpleGeometry.prototype.setLayout = function (layout, coordinates, nesting) {\n /** @type {number} */\n var stride;\n if (layout) {\n stride = getStrideForLayout(layout);\n }\n else {\n for (var i = 0; i < nesting; ++i) {\n if (coordinates.length === 0) {\n this.layout = GeometryLayout.XY;\n this.stride = 2;\n return;\n }\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 * 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 SimpleGeometry.prototype.applyTransform = function (transformFn) {\n if (this.flatCoordinates) {\n transformFn(this.flatCoordinates, this.flatCoordinates, this.stride);\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 SimpleGeometry.prototype.rotate = function (angle, anchor) {\n var flatCoordinates = this.getFlatCoordinates();\n if (flatCoordinates) {\n var stride = this.getStride();\n rotate(flatCoordinates, 0, flatCoordinates.length, stride, angle, anchor, flatCoordinates);\n this.changed();\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\n * 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 SimpleGeometry.prototype.scale = function (sx, opt_sy, opt_anchor) {\n var sy = opt_sy;\n if (sy === undefined) {\n sy = sx;\n }\n var anchor = opt_anchor;\n if (!anchor) {\n anchor = getCenter(this.getExtent());\n }\n var flatCoordinates = this.getFlatCoordinates();\n if (flatCoordinates) {\n var stride = this.getStride();\n scale(flatCoordinates, 0, flatCoordinates.length, stride, sx, sy, anchor, flatCoordinates);\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 SimpleGeometry.prototype.translate = function (deltaX, deltaY) {\n var flatCoordinates = this.getFlatCoordinates();\n if (flatCoordinates) {\n var stride = this.getStride();\n translate(flatCoordinates, 0, flatCoordinates.length, stride, deltaX, deltaY, flatCoordinates);\n this.changed();\n }\n };\n return SimpleGeometry;\n}(Geometry));\n/**\n * @param {number} stride Stride.\n * @return {GeometryLayout} layout Layout.\n */\nfunction getLayoutForStride(stride) {\n var layout;\n if (stride == 2) {\n layout = GeometryLayout.XY;\n }\n else if (stride == 3) {\n layout = GeometryLayout.XYZ;\n }\n else if (stride == 4) {\n layout = GeometryLayout.XYZM;\n }\n return (\n /** @type {GeometryLayout} */ (layout));\n}\n/**\n * @param {GeometryLayout} layout Layout.\n * @return {number} Stride.\n */\nexport function getStrideForLayout(layout) {\n var stride;\n if (layout == GeometryLayout.XY) {\n stride = 2;\n }\n else if (layout == GeometryLayout.XYZ || layout == GeometryLayout.XYM) {\n stride = 3;\n }\n else if (layout == GeometryLayout.XYZM) {\n stride = 4;\n }\n return /** @type {number} */ (stride);\n}\n/**\n * @param {SimpleGeometry} simpleGeometry Simple geometry.\n * @param {import(\"../transform.js\").Transform} transform Transform.\n * @param {Array=} opt_dest Destination.\n * @return {Array} Transformed flat coordinates.\n */\nexport function transformGeom2D(simpleGeometry, transform, opt_dest) {\n var flatCoordinates = simpleGeometry.getFlatCoordinates();\n if (!flatCoordinates) {\n return null;\n }\n else {\n var stride = simpleGeometry.getStride();\n return transform2D(flatCoordinates, 0, flatCoordinates.length, stride, transform, opt_dest);\n }\n}\nexport default SimpleGeometry;\n//# sourceMappingURL=SimpleGeometry.js.map","/**\n * @module ol/geom/flat/area\n */\n/**\n * @param {Array} 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 var twiceArea = 0;\n var x1 = flatCoordinates[end - stride];\n var y1 = flatCoordinates[end - stride + 1];\n for (; offset < end; offset += stride) {\n var x2 = flatCoordinates[offset];\n var y2 = flatCoordinates[offset + 1];\n twiceArea += y1 * x2 - x1 * y2;\n x1 = x2;\n y1 = y2;\n }\n return twiceArea / 2;\n}\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array} ends Ends.\n * @param {number} stride Stride.\n * @return {number} Area.\n */\nexport function linearRings(flatCoordinates, offset, ends, stride) {\n var area = 0;\n for (var i = 0, ii = ends.length; i < ii; ++i) {\n var end = ends[i];\n area += linearRing(flatCoordinates, offset, end, stride);\n offset = end;\n }\n return area;\n}\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array>} endss Endss.\n * @param {number} stride Stride.\n * @return {number} Area.\n */\nexport function linearRingss(flatCoordinates, offset, endss, stride) {\n var area = 0;\n for (var i = 0, ii = endss.length; i < ii; ++i) {\n var ends = endss[i];\n area += linearRings(flatCoordinates, offset, ends, stride);\n offset = ends[ends.length - 1];\n }\n return area;\n}\n//# sourceMappingURL=area.js.map","/**\n * @module ol/geom/flat/closest\n */\nimport { lerp, squaredDistance as squaredDx } from '../../math.js';\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} 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} closestPoint Closest point.\n */\nfunction assignClosest(flatCoordinates, offset1, offset2, stride, x, y, closestPoint) {\n var x1 = flatCoordinates[offset1];\n var y1 = flatCoordinates[offset1 + 1];\n var dx = flatCoordinates[offset2] - x1;\n var dy = flatCoordinates[offset2 + 1] - y1;\n var offset;\n if (dx === 0 && dy === 0) {\n offset = offset1;\n }\n else {\n var t = ((x - x1) * dx + (y - y1) * dy) / (dx * dx + dy * dy);\n if (t > 1) {\n offset = offset2;\n }\n else if (t > 0) {\n for (var i = 0; i < stride; ++i) {\n closestPoint[i] = lerp(flatCoordinates[offset1 + i], flatCoordinates[offset2 + i], t);\n }\n closestPoint.length = stride;\n return;\n }\n else {\n offset = offset1;\n }\n }\n for (var i = 0; i < stride; ++i) {\n closestPoint[i] = flatCoordinates[offset + i];\n }\n closestPoint.length = stride;\n}\n/**\n * Return the squared of the largest distance between any pair of consecutive\n * coordinates.\n * @param {Array} 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 var x1 = flatCoordinates[offset];\n var y1 = flatCoordinates[offset + 1];\n for (offset += stride; offset < end; offset += stride) {\n var x2 = flatCoordinates[offset];\n var y2 = flatCoordinates[offset + 1];\n var 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 * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array} ends Ends.\n * @param {number} stride Stride.\n * @param {number} max Max squared delta.\n * @return {number} Max squared delta.\n */\nexport function arrayMaxSquaredDelta(flatCoordinates, offset, ends, stride, max) {\n for (var i = 0, ii = ends.length; i < ii; ++i) {\n var end = ends[i];\n max = maxSquaredDelta(flatCoordinates, offset, end, stride, max);\n offset = end;\n }\n return max;\n}\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array>} endss Endss.\n * @param {number} stride Stride.\n * @param {number} max Max squared delta.\n * @return {number} Max squared delta.\n */\nexport function multiArrayMaxSquaredDelta(flatCoordinates, offset, endss, stride, max) {\n for (var i = 0, ii = endss.length; i < ii; ++i) {\n var ends = endss[i];\n max = arrayMaxSquaredDelta(flatCoordinates, offset, ends, stride, max);\n offset = ends[ends.length - 1];\n }\n return max;\n}\n/**\n * @param {Array} 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} closestPoint Closest point.\n * @param {number} minSquaredDistance Minimum squared distance.\n * @param {Array=} opt_tmpPoint Temporary point object.\n * @return {number} Minimum squared distance.\n */\nexport function assignClosestPoint(flatCoordinates, offset, end, stride, maxDelta, isRing, x, y, closestPoint, minSquaredDistance, opt_tmpPoint) {\n if (offset == end) {\n return minSquaredDistance;\n }\n var i, squaredDistance;\n if (maxDelta === 0) {\n // All points are identical, so just test the first point.\n squaredDistance = squaredDx(x, y, flatCoordinates[offset], flatCoordinates[offset + 1]);\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 }\n else {\n return minSquaredDistance;\n }\n }\n var tmpPoint = opt_tmpPoint ? opt_tmpPoint : [NaN, NaN];\n var index = offset + stride;\n while (index < end) {\n assignClosest(flatCoordinates, index - stride, index, stride, x, y, tmpPoint);\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 }\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 += stride * Math.max(((Math.sqrt(squaredDistance) -\n Math.sqrt(minSquaredDistance)) / maxDelta) | 0, 1);\n }\n }\n if (isRing) {\n // Check the closing segment.\n assignClosest(flatCoordinates, end - stride, offset, stride, x, y, tmpPoint);\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 * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array} 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} closestPoint Closest point.\n * @param {number} minSquaredDistance Minimum squared distance.\n * @param {Array=} opt_tmpPoint Temporary point object.\n * @return {number} Minimum squared distance.\n */\nexport function assignClosestArrayPoint(flatCoordinates, offset, ends, stride, maxDelta, isRing, x, y, closestPoint, minSquaredDistance, opt_tmpPoint) {\n var tmpPoint = opt_tmpPoint ? opt_tmpPoint : [NaN, NaN];\n for (var i = 0, ii = ends.length; i < ii; ++i) {\n var end = ends[i];\n minSquaredDistance = assignClosestPoint(flatCoordinates, offset, end, stride, maxDelta, isRing, x, y, closestPoint, minSquaredDistance, tmpPoint);\n offset = end;\n }\n return minSquaredDistance;\n}\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array>} 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} closestPoint Closest point.\n * @param {number} minSquaredDistance Minimum squared distance.\n * @param {Array=} opt_tmpPoint Temporary point object.\n * @return {number} Minimum squared distance.\n */\nexport function assignClosestMultiArrayPoint(flatCoordinates, offset, endss, stride, maxDelta, isRing, x, y, closestPoint, minSquaredDistance, opt_tmpPoint) {\n var tmpPoint = opt_tmpPoint ? opt_tmpPoint : [NaN, NaN];\n for (var i = 0, ii = endss.length; i < ii; ++i) {\n var ends = endss[i];\n minSquaredDistance = assignClosestArrayPoint(flatCoordinates, offset, ends, stride, maxDelta, isRing, x, y, closestPoint, minSquaredDistance, tmpPoint);\n offset = ends[ends.length - 1];\n }\n return minSquaredDistance;\n}\n//# sourceMappingURL=closest.js.map","/**\n * @module ol/geom/flat/deflate\n */\n/**\n * @param {Array} 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 (var i = 0, ii = coordinate.length; i < ii; ++i) {\n flatCoordinates[offset++] = coordinate[i];\n }\n return offset;\n}\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array} coordinates Coordinates.\n * @param {number} stride Stride.\n * @return {number} offset Offset.\n */\nexport function deflateCoordinates(flatCoordinates, offset, coordinates, stride) {\n for (var i = 0, ii = coordinates.length; i < ii; ++i) {\n var coordinate = coordinates[i];\n for (var j = 0; j < stride; ++j) {\n flatCoordinates[offset++] = coordinate[j];\n }\n }\n return offset;\n}\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array>} coordinatess Coordinatess.\n * @param {number} stride Stride.\n * @param {Array=} opt_ends Ends.\n * @return {Array} Ends.\n */\nexport function deflateCoordinatesArray(flatCoordinates, offset, coordinatess, stride, opt_ends) {\n var ends = opt_ends ? opt_ends : [];\n var i = 0;\n for (var j = 0, jj = coordinatess.length; j < jj; ++j) {\n var end = deflateCoordinates(flatCoordinates, offset, coordinatess[j], stride);\n ends[i++] = end;\n offset = end;\n }\n ends.length = i;\n return ends;\n}\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array>>} coordinatesss Coordinatesss.\n * @param {number} stride Stride.\n * @param {Array>=} opt_endss Endss.\n * @return {Array>} Endss.\n */\nexport function deflateMultiCoordinatesArray(flatCoordinates, offset, coordinatesss, stride, opt_endss) {\n var endss = opt_endss ? opt_endss : [];\n var i = 0;\n for (var j = 0, jj = coordinatesss.length; j < jj; ++j) {\n var ends = deflateCoordinatesArray(flatCoordinates, offset, coordinatesss[j], stride, endss[i]);\n endss[i++] = ends;\n offset = ends[ends.length - 1];\n }\n endss.length = i;\n return endss;\n}\n//# sourceMappingURL=deflate.js.map","/**\n * @module ol/geom/flat/inflate\n */\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {Array=} opt_coordinates Coordinates.\n * @return {Array} Coordinates.\n */\nexport function inflateCoordinates(flatCoordinates, offset, end, stride, opt_coordinates) {\n var coordinates = opt_coordinates !== undefined ? opt_coordinates : [];\n var i = 0;\n for (var 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 * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array} ends Ends.\n * @param {number} stride Stride.\n * @param {Array>=} opt_coordinatess Coordinatess.\n * @return {Array>} Coordinatess.\n */\nexport function inflateCoordinatesArray(flatCoordinates, offset, ends, stride, opt_coordinatess) {\n var coordinatess = opt_coordinatess !== undefined ? opt_coordinatess : [];\n var i = 0;\n for (var j = 0, jj = ends.length; j < jj; ++j) {\n var end = ends[j];\n coordinatess[i++] = inflateCoordinates(flatCoordinates, offset, end, stride, coordinatess[i]);\n offset = end;\n }\n coordinatess.length = i;\n return coordinatess;\n}\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array>} endss Endss.\n * @param {number} stride Stride.\n * @param {Array>>=} opt_coordinatesss\n * Coordinatesss.\n * @return {Array>>} Coordinatesss.\n */\nexport function inflateMultiCoordinatesArray(flatCoordinates, offset, endss, stride, opt_coordinatesss) {\n var coordinatesss = opt_coordinatesss !== undefined ? opt_coordinatesss : [];\n var i = 0;\n for (var j = 0, jj = endss.length; j < jj; ++j) {\n var ends = endss[j];\n coordinatesss[i++] = inflateCoordinatesArray(flatCoordinates, offset, ends, stride, coordinatesss[i]);\n offset = ends[ends.length - 1];\n }\n coordinatesss.length = i;\n return coordinatesss;\n}\n//# sourceMappingURL=inflate.js.map","/**\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.\nimport { squaredSegmentDistance, squaredDistance } from '../../math.js';\n/**\n * @param {Array} 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=} opt_simplifiedFlatCoordinates Simplified flat\n * coordinates.\n * @return {Array} Simplified line string.\n */\nexport function simplifyLineString(flatCoordinates, offset, end, stride, squaredTolerance, highQuality, opt_simplifiedFlatCoordinates) {\n var simplifiedFlatCoordinates = opt_simplifiedFlatCoordinates !== undefined ?\n opt_simplifiedFlatCoordinates : [];\n if (!highQuality) {\n end = radialDistance(flatCoordinates, offset, end, stride, squaredTolerance, simplifiedFlatCoordinates, 0);\n flatCoordinates = simplifiedFlatCoordinates;\n offset = 0;\n stride = 2;\n }\n simplifiedFlatCoordinates.length = douglasPeucker(flatCoordinates, offset, end, stride, squaredTolerance, simplifiedFlatCoordinates, 0);\n return simplifiedFlatCoordinates;\n}\n/**\n * @param {Array} 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} simplifiedFlatCoordinates Simplified flat\n * coordinates.\n * @param {number} simplifiedOffset Simplified offset.\n * @return {number} Simplified offset.\n */\nexport function douglasPeucker(flatCoordinates, offset, end, stride, squaredTolerance, simplifiedFlatCoordinates, simplifiedOffset) {\n var n = (end - offset) / stride;\n if (n < 3) {\n for (; offset < end; offset += stride) {\n simplifiedFlatCoordinates[simplifiedOffset++] =\n flatCoordinates[offset];\n simplifiedFlatCoordinates[simplifiedOffset++] =\n flatCoordinates[offset + 1];\n }\n return simplifiedOffset;\n }\n /** @type {Array} */\n var markers = new Array(n);\n markers[0] = 1;\n markers[n - 1] = 1;\n /** @type {Array} */\n var stack = [offset, end - stride];\n var index = 0;\n while (stack.length > 0) {\n var last = stack.pop();\n var first = stack.pop();\n var maxSquaredDistance = 0;\n var x1 = flatCoordinates[first];\n var y1 = flatCoordinates[first + 1];\n var x2 = flatCoordinates[last];\n var y2 = flatCoordinates[last + 1];\n for (var i = first + stride; i < last; i += stride) {\n var x = flatCoordinates[i];\n var y = flatCoordinates[i + 1];\n var squaredDistance_1 = squaredSegmentDistance(x, y, x1, y1, x2, y2);\n if (squaredDistance_1 > maxSquaredDistance) {\n index = i;\n maxSquaredDistance = squaredDistance_1;\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 (var 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 * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array} ends Ends.\n * @param {number} stride Stride.\n * @param {number} squaredTolerance Squared tolerance.\n * @param {Array} simplifiedFlatCoordinates Simplified flat\n * coordinates.\n * @param {number} simplifiedOffset Simplified offset.\n * @param {Array} simplifiedEnds Simplified ends.\n * @return {number} Simplified offset.\n */\nexport function douglasPeuckerArray(flatCoordinates, offset, ends, stride, squaredTolerance, simplifiedFlatCoordinates, simplifiedOffset, simplifiedEnds) {\n for (var i = 0, ii = ends.length; i < ii; ++i) {\n var end = ends[i];\n simplifiedOffset = douglasPeucker(flatCoordinates, offset, end, stride, squaredTolerance, simplifiedFlatCoordinates, simplifiedOffset);\n simplifiedEnds.push(simplifiedOffset);\n offset = end;\n }\n return simplifiedOffset;\n}\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array>} endss Endss.\n * @param {number} stride Stride.\n * @param {number} squaredTolerance Squared tolerance.\n * @param {Array} simplifiedFlatCoordinates Simplified flat\n * coordinates.\n * @param {number} simplifiedOffset Simplified offset.\n * @param {Array>} simplifiedEndss Simplified endss.\n * @return {number} Simplified offset.\n */\nexport function douglasPeuckerMultiArray(flatCoordinates, offset, endss, stride, squaredTolerance, simplifiedFlatCoordinates, simplifiedOffset, simplifiedEndss) {\n for (var i = 0, ii = endss.length; i < ii; ++i) {\n var ends = endss[i];\n var simplifiedEnds = [];\n simplifiedOffset = douglasPeuckerArray(flatCoordinates, offset, ends, stride, squaredTolerance, simplifiedFlatCoordinates, simplifiedOffset, simplifiedEnds);\n simplifiedEndss.push(simplifiedEnds);\n offset = ends[ends.length - 1];\n }\n return simplifiedOffset;\n}\n/**\n * @param {Array} 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} simplifiedFlatCoordinates Simplified flat\n * coordinates.\n * @param {number} simplifiedOffset Simplified offset.\n * @return {number} Simplified offset.\n */\nexport function radialDistance(flatCoordinates, offset, end, stride, squaredTolerance, simplifiedFlatCoordinates, simplifiedOffset) {\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 var x1 = flatCoordinates[offset];\n var y1 = flatCoordinates[offset + 1];\n // copy first point\n simplifiedFlatCoordinates[simplifiedOffset++] = x1;\n simplifiedFlatCoordinates[simplifiedOffset++] = y1;\n var x2 = x1;\n var 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 * @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 * 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} 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} simplifiedFlatCoordinates Simplified flat\n * coordinates.\n * @param {number} simplifiedOffset Simplified offset.\n * @return {number} Simplified offset.\n */\nexport function quantize(flatCoordinates, offset, end, stride, tolerance, simplifiedFlatCoordinates, simplifiedOffset) {\n // do nothing if the line is empty\n if (offset == end) {\n return simplifiedOffset;\n }\n // snap the first coordinate (P1)\n var x1 = snap(flatCoordinates[offset], tolerance);\n var 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 var 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 var x3 = snap(flatCoordinates[offset], tolerance);\n var 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 var dx1 = x2 - x1;\n var dy1 = y2 - y1;\n // calculate the delta between P3 and P1\n var dx2 = x3 - x1;\n var 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 ((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 // 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 * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array} ends Ends.\n * @param {number} stride Stride.\n * @param {number} tolerance Tolerance.\n * @param {Array} simplifiedFlatCoordinates Simplified flat\n * coordinates.\n * @param {number} simplifiedOffset Simplified offset.\n * @param {Array} simplifiedEnds Simplified ends.\n * @return {number} Simplified offset.\n */\nexport function quantizeArray(flatCoordinates, offset, ends, stride, tolerance, simplifiedFlatCoordinates, simplifiedOffset, simplifiedEnds) {\n for (var i = 0, ii = ends.length; i < ii; ++i) {\n var end = ends[i];\n simplifiedOffset = quantize(flatCoordinates, offset, end, stride, tolerance, simplifiedFlatCoordinates, simplifiedOffset);\n simplifiedEnds.push(simplifiedOffset);\n offset = end;\n }\n return simplifiedOffset;\n}\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array>} endss Endss.\n * @param {number} stride Stride.\n * @param {number} tolerance Tolerance.\n * @param {Array} simplifiedFlatCoordinates Simplified flat\n * coordinates.\n * @param {number} simplifiedOffset Simplified offset.\n * @param {Array>} simplifiedEndss Simplified endss.\n * @return {number} Simplified offset.\n */\nexport function quantizeMultiArray(flatCoordinates, offset, endss, stride, tolerance, simplifiedFlatCoordinates, simplifiedOffset, simplifiedEndss) {\n for (var i = 0, ii = endss.length; i < ii; ++i) {\n var ends = endss[i];\n var simplifiedEnds = [];\n simplifiedOffset = quantizeArray(flatCoordinates, offset, ends, stride, tolerance, simplifiedFlatCoordinates, simplifiedOffset, simplifiedEnds);\n simplifiedEndss.push(simplifiedEnds);\n offset = ends[ends.length - 1];\n }\n return simplifiedOffset;\n}\n//# sourceMappingURL=simplify.js.map","var __extends = (this && this.__extends) || (function () {\n var extendStatics = function (d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n return extendStatics(d, b);\n };\n return function (d, b) {\n extendStatics(d, b);\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n };\n})();\n/**\n * @module ol/geom/LinearRing\n */\nimport { closestSquaredDistanceXY } from '../extent.js';\nimport GeometryLayout from './GeometryLayout.js';\nimport GeometryType from './GeometryType.js';\nimport SimpleGeometry from './SimpleGeometry.js';\nimport { linearRing as linearRingArea } from './flat/area.js';\nimport { assignClosestPoint, maxSquaredDelta } from './flat/closest.js';\nimport { deflateCoordinates } from './flat/deflate.js';\nimport { inflateCoordinates } from './flat/inflate.js';\nimport { douglasPeucker } from './flat/simplify.js';\n/**\n * @classdesc\n * Linear ring geometry. Only used as part of polygon; cannot be rendered\n * on its own.\n *\n * @api\n */\nvar LinearRing = /** @class */ (function (_super) {\n __extends(LinearRing, _super);\n /**\n * @param {Array|Array} coordinates Coordinates.\n * For internal use, flat coordinates in combination with `opt_layout` are also accepted.\n * @param {GeometryLayout=} opt_layout Layout.\n */\n function LinearRing(coordinates, opt_layout) {\n var _this = _super.call(this) || this;\n /**\n * @private\n * @type {number}\n */\n _this.maxDelta_ = -1;\n /**\n * @private\n * @type {number}\n */\n _this.maxDeltaRevision_ = -1;\n if (opt_layout !== undefined && !Array.isArray(coordinates[0])) {\n _this.setFlatCoordinates(opt_layout, /** @type {Array} */ (coordinates));\n }\n else {\n _this.setCoordinates(/** @type {Array} */ (coordinates), opt_layout);\n }\n return _this;\n }\n /**\n * Make a complete copy of the geometry.\n * @return {!LinearRing} Clone.\n * @override\n * @api\n */\n LinearRing.prototype.clone = function () {\n return new LinearRing(this.flatCoordinates.slice(), this.layout);\n };\n /**\n * @inheritDoc\n */\n LinearRing.prototype.closestPointXY = function (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(maxSquaredDelta(this.flatCoordinates, 0, this.flatCoordinates.length, this.stride, 0));\n this.maxDeltaRevision_ = this.getRevision();\n }\n return assignClosestPoint(this.flatCoordinates, 0, this.flatCoordinates.length, this.stride, this.maxDelta_, true, x, y, closestPoint, minSquaredDistance);\n };\n /**\n * Return the area of the linear ring on projected plane.\n * @return {number} Area (on projected plane).\n * @api\n */\n LinearRing.prototype.getArea = function () {\n return linearRingArea(this.flatCoordinates, 0, this.flatCoordinates.length, this.stride);\n };\n /**\n * Return the coordinates of the linear ring.\n * @return {Array} Coordinates.\n * @override\n * @api\n */\n LinearRing.prototype.getCoordinates = function () {\n return inflateCoordinates(this.flatCoordinates, 0, this.flatCoordinates.length, this.stride);\n };\n /**\n * @inheritDoc\n */\n LinearRing.prototype.getSimplifiedGeometryInternal = function (squaredTolerance) {\n var simplifiedFlatCoordinates = [];\n simplifiedFlatCoordinates.length = douglasPeucker(this.flatCoordinates, 0, this.flatCoordinates.length, this.stride, squaredTolerance, simplifiedFlatCoordinates, 0);\n return new LinearRing(simplifiedFlatCoordinates, GeometryLayout.XY);\n };\n /**\n * @inheritDoc\n * @api\n */\n LinearRing.prototype.getType = function () {\n return GeometryType.LINEAR_RING;\n };\n /**\n * @inheritDoc\n */\n LinearRing.prototype.intersectsExtent = function (extent) {\n return false;\n };\n /**\n * Set the coordinates of the linear ring.\n * @param {!Array} coordinates Coordinates.\n * @param {GeometryLayout=} opt_layout Layout.\n * @override\n * @api\n */\n LinearRing.prototype.setCoordinates = function (coordinates, opt_layout) {\n this.setLayout(opt_layout, coordinates, 1);\n if (!this.flatCoordinates) {\n this.flatCoordinates = [];\n }\n this.flatCoordinates.length = deflateCoordinates(this.flatCoordinates, 0, coordinates, this.stride);\n this.changed();\n };\n return LinearRing;\n}(SimpleGeometry));\nexport default LinearRing;\n//# sourceMappingURL=LinearRing.js.map","var __extends = (this && this.__extends) || (function () {\n var extendStatics = function (d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n return extendStatics(d, b);\n };\n return function (d, b) {\n extendStatics(d, b);\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n };\n})();\n/**\n * @module ol/geom/Point\n */\nimport { createOrUpdateFromCoordinate, containsXY } from '../extent.js';\nimport GeometryType from './GeometryType.js';\nimport SimpleGeometry from './SimpleGeometry.js';\nimport { deflateCoordinate } from './flat/deflate.js';\nimport { squaredDistance as squaredDx } from '../math.js';\n/**\n * @classdesc\n * Point geometry.\n *\n * @api\n */\nvar Point = /** @class */ (function (_super) {\n __extends(Point, _super);\n /**\n * @param {import(\"../coordinate.js\").Coordinate} coordinates Coordinates.\n * @param {import(\"./GeometryLayout.js\").default=} opt_layout Layout.\n */\n function Point(coordinates, opt_layout) {\n var _this = _super.call(this) || this;\n _this.setCoordinates(coordinates, opt_layout);\n return _this;\n }\n /**\n * Make a complete copy of the geometry.\n * @return {!Point} Clone.\n * @override\n * @api\n */\n Point.prototype.clone = function () {\n var point = new Point(this.flatCoordinates.slice(), this.layout);\n return point;\n };\n /**\n * @inheritDoc\n */\n Point.prototype.closestPointXY = function (x, y, closestPoint, minSquaredDistance) {\n var flatCoordinates = this.flatCoordinates;\n var squaredDistance = squaredDx(x, y, flatCoordinates[0], flatCoordinates[1]);\n if (squaredDistance < minSquaredDistance) {\n var stride = this.stride;\n for (var i = 0; i < stride; ++i) {\n closestPoint[i] = flatCoordinates[i];\n }\n closestPoint.length = stride;\n return squaredDistance;\n }\n else {\n return minSquaredDistance;\n }\n };\n /**\n * Return the coordinate of the point.\n * @return {import(\"../coordinate.js\").Coordinate} Coordinates.\n * @override\n * @api\n */\n Point.prototype.getCoordinates = function () {\n return !this.flatCoordinates ? [] : this.flatCoordinates.slice();\n };\n /**\n * @inheritDoc\n */\n Point.prototype.computeExtent = function (extent) {\n return createOrUpdateFromCoordinate(this.flatCoordinates, extent);\n };\n /**\n * @inheritDoc\n * @api\n */\n Point.prototype.getType = function () {\n return GeometryType.POINT;\n };\n /**\n * @inheritDoc\n * @api\n */\n Point.prototype.intersectsExtent = function (extent) {\n return containsXY(extent, this.flatCoordinates[0], this.flatCoordinates[1]);\n };\n /**\n * @inheritDoc\n * @api\n */\n Point.prototype.setCoordinates = function (coordinates, opt_layout) {\n this.setLayout(opt_layout, coordinates, 0);\n if (!this.flatCoordinates) {\n this.flatCoordinates = [];\n }\n this.flatCoordinates.length = deflateCoordinate(this.flatCoordinates, 0, coordinates, this.stride);\n this.changed();\n };\n return Point;\n}(SimpleGeometry));\nexport default Point;\n//# sourceMappingURL=Point.js.map","/**\n * @module ol/geom/flat/contains\n */\nimport { forEachCorner } from '../../extent.js';\n/**\n * @param {Array} 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(flatCoordinates, offset, end, stride, extent) {\n var outside = forEachCorner(extent, \n /**\n * @param {import(\"../../coordinate.js\").Coordinate} coordinate Coordinate.\n * @return {boolean} Contains (x, y).\n */\n function (coordinate) {\n return !linearRingContainsXY(flatCoordinates, offset, end, stride, coordinate[0], coordinate[1]);\n });\n return !outside;\n}\n/**\n * @param {Array} 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(flatCoordinates, offset, end, stride, x, y) {\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 var wn = 0;\n var x1 = flatCoordinates[end - stride];\n var y1 = flatCoordinates[end - stride + 1];\n for (; offset < end; offset += stride) {\n var x2 = flatCoordinates[offset];\n var 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 }\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 * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array} 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(flatCoordinates, offset, ends, stride, x, y) {\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 (var i = 1, ii = ends.length; i < ii; ++i) {\n if (linearRingContainsXY(flatCoordinates, ends[i - 1], ends[i], stride, x, y)) {\n return false;\n }\n }\n return true;\n}\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array>} 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(flatCoordinates, offset, endss, stride, x, y) {\n if (endss.length === 0) {\n return false;\n }\n for (var i = 0, ii = endss.length; i < ii; ++i) {\n var 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//# sourceMappingURL=contains.js.map","/**\n * @module ol/geom/flat/interiorpoint\n */\nimport { numberSafeCompareFunction } from '../../array.js';\nimport { linearRingsContainsXY } from './contains.js';\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} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array} ends Ends.\n * @param {number} stride Stride.\n * @param {Array} flatCenters Flat centers.\n * @param {number} flatCentersOffset Flat center offset.\n * @param {Array=} opt_dest Destination.\n * @return {Array} Destination point as XYM coordinate, where M is the\n * length of the horizontal intersection that the point belongs to.\n */\nexport function getInteriorPointOfArray(flatCoordinates, offset, ends, stride, flatCenters, flatCentersOffset, opt_dest) {\n var i, ii, x, x1, x2, y1, y2;\n var y = flatCenters[flatCentersOffset + 1];\n /** @type {Array} */\n var intersections = [];\n // Calculate intersections with the horizontal line\n for (var r = 0, rr = ends.length; r < rr; ++r) {\n var 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 var pointX = NaN;\n var 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 var 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 }\n else {\n return [pointX, y, maxSegmentLength];\n }\n}\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array>} endss Endss.\n * @param {number} stride Stride.\n * @param {Array} flatCenters Flat centers.\n * @return {Array} Interior points as XYM coordinates, where M is the\n * length of the horizontal intersection that the point belongs to.\n */\nexport function getInteriorPointsOfMultiArray(flatCoordinates, offset, endss, stride, flatCenters) {\n var interiorPoints = [];\n for (var i = 0, ii = endss.length; i < ii; ++i) {\n var ends = endss[i];\n interiorPoints = getInteriorPointOfArray(flatCoordinates, offset, ends, stride, flatCenters, 2 * i, interiorPoints);\n offset = ends[ends.length - 1];\n }\n return interiorPoints;\n}\n//# sourceMappingURL=interiorpoint.js.map","/**\n * @module ol/geom/flat/segments\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} 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 var point1 = [flatCoordinates[offset], flatCoordinates[offset + 1]];\n var point2 = [];\n var 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//# sourceMappingURL=segments.js.map","/**\n * @module ol/geom/flat/intersectsextent\n */\nimport { containsExtent, createEmpty, extendFlatCoordinates, intersects, intersectsSegment } from '../../extent.js';\nimport { linearRingContainsXY, linearRingContainsExtent } from './contains.js';\nimport { forEach as forEachSegment } from './segments.js';\n/**\n * @param {Array} 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(flatCoordinates, offset, end, stride, extent) {\n var coordinatesExtent = extendFlatCoordinates(createEmpty(), flatCoordinates, offset, end, stride);\n if (!intersects(extent, coordinatesExtent)) {\n return false;\n }\n if (containsExtent(extent, coordinatesExtent)) {\n return true;\n }\n if (coordinatesExtent[0] >= extent[0] &&\n coordinatesExtent[2] <= extent[2]) {\n return true;\n }\n if (coordinatesExtent[1] >= extent[1] &&\n coordinatesExtent[3] <= extent[3]) {\n return true;\n }\n return forEachSegment(flatCoordinates, offset, end, 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 * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array} 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(flatCoordinates, offset, ends, stride, extent) {\n for (var i = 0, ii = ends.length; i < ii; ++i) {\n if (intersectsLineString(flatCoordinates, offset, ends[i], stride, extent)) {\n return true;\n }\n offset = ends[i];\n }\n return false;\n}\n/**\n * @param {Array} 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(flatCoordinates, offset, end, stride, extent) {\n if (intersectsLineString(flatCoordinates, offset, end, stride, extent)) {\n return true;\n }\n if (linearRingContainsXY(flatCoordinates, offset, end, stride, extent[0], extent[1])) {\n return true;\n }\n if (linearRingContainsXY(flatCoordinates, offset, end, stride, extent[0], extent[3])) {\n return true;\n }\n if (linearRingContainsXY(flatCoordinates, offset, end, stride, extent[2], extent[1])) {\n return true;\n }\n if (linearRingContainsXY(flatCoordinates, offset, end, stride, extent[2], extent[3])) {\n return true;\n }\n return false;\n}\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array} 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(flatCoordinates, offset, ends, stride, extent) {\n if (!intersectsLinearRing(flatCoordinates, offset, ends[0], stride, extent)) {\n return false;\n }\n if (ends.length === 1) {\n return true;\n }\n for (var i = 1, ii = ends.length; i < ii; ++i) {\n if (linearRingContainsExtent(flatCoordinates, ends[i - 1], ends[i], stride, extent)) {\n if (!intersectsLineString(flatCoordinates, ends[i - 1], ends[i], stride, extent)) {\n return false;\n }\n }\n }\n return true;\n}\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array>} 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(flatCoordinates, offset, endss, stride, extent) {\n for (var i = 0, ii = endss.length; i < ii; ++i) {\n var ends = endss[i];\n if (intersectsLinearRingArray(flatCoordinates, offset, ends, stride, extent)) {\n return true;\n }\n offset = ends[ends.length - 1];\n }\n return false;\n}\n//# sourceMappingURL=intersectsextent.js.map","/**\n * @module ol/geom/flat/reverse\n */\n/**\n * @param {Array} 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 (var i = 0; i < stride; ++i) {\n var 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//# sourceMappingURL=reverse.js.map","/**\n * @module ol/geom/flat/orient\n */\nimport { coordinates as reverseCoordinates } from './reverse.js';\n/**\n * @param {Array} 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 // http://tinyurl.com/clockwise-method\n // https://github.com/OSGeo/gdal/blob/trunk/gdal/ogr/ogrlinearring.cpp\n var edge = 0;\n var x1 = flatCoordinates[end - stride];\n var y1 = flatCoordinates[end - stride + 1];\n for (; offset < end; offset += stride) {\n var x2 = flatCoordinates[offset];\n var y2 = flatCoordinates[offset + 1];\n edge += (x2 - x1) * (y2 + y1);\n x1 = x2;\n y1 = y2;\n }\n return edge > 0;\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} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array} 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(flatCoordinates, offset, ends, stride, opt_right) {\n var right = opt_right !== undefined ? opt_right : false;\n for (var i = 0, ii = ends.length; i < ii; ++i) {\n var end = ends[i];\n var isClockwise = linearRingIsClockwise(flatCoordinates, offset, end, stride);\n if (i === 0) {\n if ((right && isClockwise) || (!right && !isClockwise)) {\n return false;\n }\n }\n else {\n if ((right && !isClockwise) || (!right && isClockwise)) {\n return false;\n }\n }\n offset = end;\n }\n return true;\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} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array>} 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(flatCoordinates, offset, endss, stride, opt_right) {\n for (var i = 0, ii = endss.length; i < ii; ++i) {\n var ends = endss[i];\n if (!linearRingsAreOriented(flatCoordinates, offset, ends, stride, opt_right)) {\n return false;\n }\n if (ends.length) {\n offset = ends[ends.length - 1];\n }\n }\n return true;\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} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array} 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(flatCoordinates, offset, ends, stride, opt_right) {\n var right = opt_right !== undefined ? opt_right : false;\n for (var i = 0, ii = ends.length; i < ii; ++i) {\n var end = ends[i];\n var isClockwise = linearRingIsClockwise(flatCoordinates, offset, end, stride);\n var reverse = 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 * 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} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array>} 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(flatCoordinates, offset, endss, stride, opt_right) {\n for (var i = 0, ii = endss.length; i < ii; ++i) {\n offset = orientLinearRings(flatCoordinates, offset, endss[i], stride, opt_right);\n }\n return offset;\n}\n//# sourceMappingURL=orient.js.map","var __extends = (this && this.__extends) || (function () {\n var extendStatics = function (d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n return extendStatics(d, b);\n };\n return function (d, b) {\n extendStatics(d, b);\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n };\n})();\n/**\n * @module ol/geom/Polygon\n */\nimport { extend } from '../array.js';\nimport { closestSquaredDistanceXY, getCenter } from '../extent.js';\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 { offset as sphereOffset } from '../sphere.js';\nimport { linearRings as linearRingsArea } from './flat/area.js';\nimport { assignClosestArrayPoint, arrayMaxSquaredDelta } from './flat/closest.js';\nimport { linearRingsContainsXY } from './flat/contains.js';\nimport { deflateCoordinatesArray } from './flat/deflate.js';\nimport { inflateCoordinatesArray } from './flat/inflate.js';\nimport { getInteriorPointOfArray } from './flat/interiorpoint.js';\nimport { intersectsLinearRingArray } from './flat/intersectsextent.js';\nimport { linearRingsAreOriented, orientLinearRings } from './flat/orient.js';\nimport { quantizeArray } from './flat/simplify.js';\nimport { modulo } from '../math.js';\n/**\n * @classdesc\n * Polygon geometry.\n *\n * @api\n */\nvar Polygon = /** @class */ (function (_super) {\n __extends(Polygon, _super);\n /**\n * @param {!Array>|!Array} 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 {GeometryLayout=} opt_layout Layout.\n * @param {Array=} opt_ends Ends (for internal use with flat coordinates).\n */\n function Polygon(coordinates, opt_layout, opt_ends) {\n var _this = _super.call(this) || this;\n /**\n * @type {Array}\n * @private\n */\n _this.ends_ = [];\n /**\n * @private\n * @type {number}\n */\n _this.flatInteriorPointRevision_ = -1;\n /**\n * @private\n * @type {import(\"../coordinate.js\").Coordinate}\n */\n _this.flatInteriorPoint_ = null;\n /**\n * @private\n * @type {number}\n */\n _this.maxDelta_ = -1;\n /**\n * @private\n * @type {number}\n */\n _this.maxDeltaRevision_ = -1;\n /**\n * @private\n * @type {number}\n */\n _this.orientedRevision_ = -1;\n /**\n * @private\n * @type {Array}\n */\n _this.orientedFlatCoordinates_ = null;\n if (opt_layout !== undefined && opt_ends) {\n _this.setFlatCoordinates(opt_layout, /** @type {Array} */ (coordinates));\n _this.ends_ = opt_ends;\n }\n else {\n _this.setCoordinates(/** @type {Array>} */ (coordinates), opt_layout);\n }\n return _this;\n }\n /**\n * Append the passed linear ring to this polygon.\n * @param {LinearRing} linearRing Linear ring.\n * @api\n */\n Polygon.prototype.appendLinearRing = function (linearRing) {\n if (!this.flatCoordinates) {\n this.flatCoordinates = linearRing.getFlatCoordinates().slice();\n }\n else {\n extend(this.flatCoordinates, linearRing.getFlatCoordinates());\n }\n this.ends_.push(this.flatCoordinates.length);\n this.changed();\n };\n /**\n * Make a complete copy of the geometry.\n * @return {!Polygon} Clone.\n * @override\n * @api\n */\n Polygon.prototype.clone = function () {\n return new Polygon(this.flatCoordinates.slice(), this.layout, this.ends_.slice());\n };\n /**\n * @inheritDoc\n */\n Polygon.prototype.closestPointXY = function (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(arrayMaxSquaredDelta(this.flatCoordinates, 0, this.ends_, this.stride, 0));\n this.maxDeltaRevision_ = this.getRevision();\n }\n return assignClosestArrayPoint(this.flatCoordinates, 0, this.ends_, this.stride, this.maxDelta_, true, x, y, closestPoint, minSquaredDistance);\n };\n /**\n * @inheritDoc\n */\n Polygon.prototype.containsXY = function (x, y) {\n return linearRingsContainsXY(this.getOrientedFlatCoordinates(), 0, this.ends_, this.stride, x, y);\n };\n /**\n * Return the area of the polygon on projected plane.\n * @return {number} Area (on projected plane).\n * @api\n */\n Polygon.prototype.getArea = function () {\n return linearRingsArea(this.getOrientedFlatCoordinates(), 0, this.ends_, this.stride);\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>} Coordinates.\n * @override\n * @api\n */\n Polygon.prototype.getCoordinates = function (opt_right) {\n var flatCoordinates;\n if (opt_right !== undefined) {\n flatCoordinates = this.getOrientedFlatCoordinates().slice();\n orientLinearRings(flatCoordinates, 0, this.ends_, this.stride, opt_right);\n }\n else {\n flatCoordinates = this.flatCoordinates;\n }\n return inflateCoordinatesArray(flatCoordinates, 0, this.ends_, this.stride);\n };\n /**\n * @return {Array} Ends.\n */\n Polygon.prototype.getEnds = function () {\n return this.ends_;\n };\n /**\n * @return {Array} Interior point.\n */\n Polygon.prototype.getFlatInteriorPoint = function () {\n if (this.flatInteriorPointRevision_ != this.getRevision()) {\n var flatCenter = getCenter(this.getExtent());\n this.flatInteriorPoint_ = getInteriorPointOfArray(this.getOrientedFlatCoordinates(), 0, this.ends_, this.stride, flatCenter, 0);\n this.flatInteriorPointRevision_ = this.getRevision();\n }\n return this.flatInteriorPoint_;\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 Polygon.prototype.getInteriorPoint = function () {\n return new Point(this.getFlatInteriorPoint(), GeometryLayout.XYM);\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 Polygon.prototype.getLinearRingCount = function () {\n return this.ends_.length;\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 Polygon.prototype.getLinearRing = function (index) {\n if (index < 0 || this.ends_.length <= index) {\n return null;\n }\n return new LinearRing(this.flatCoordinates.slice(index === 0 ? 0 : this.ends_[index - 1], this.ends_[index]), this.layout);\n };\n /**\n * Return the linear rings of the polygon.\n * @return {Array} Linear rings.\n * @api\n */\n Polygon.prototype.getLinearRings = function () {\n var layout = this.layout;\n var flatCoordinates = this.flatCoordinates;\n var ends = this.ends_;\n var linearRings = [];\n var offset = 0;\n for (var i = 0, ii = ends.length; i < ii; ++i) {\n var end = ends[i];\n var linearRing = new LinearRing(flatCoordinates.slice(offset, end), layout);\n linearRings.push(linearRing);\n offset = end;\n }\n return linearRings;\n };\n /**\n * @return {Array} Oriented flat coordinates.\n */\n Polygon.prototype.getOrientedFlatCoordinates = function () {\n if (this.orientedRevision_ != this.getRevision()) {\n var flatCoordinates = this.flatCoordinates;\n if (linearRingsAreOriented(flatCoordinates, 0, this.ends_, this.stride)) {\n this.orientedFlatCoordinates_ = flatCoordinates;\n }\n else {\n this.orientedFlatCoordinates_ = flatCoordinates.slice();\n this.orientedFlatCoordinates_.length =\n orientLinearRings(this.orientedFlatCoordinates_, 0, this.ends_, this.stride);\n }\n this.orientedRevision_ = this.getRevision();\n }\n return this.orientedFlatCoordinates_;\n };\n /**\n * @inheritDoc\n */\n Polygon.prototype.getSimplifiedGeometryInternal = function (squaredTolerance) {\n var simplifiedFlatCoordinates = [];\n var simplifiedEnds = [];\n simplifiedFlatCoordinates.length = quantizeArray(this.flatCoordinates, 0, this.ends_, this.stride, Math.sqrt(squaredTolerance), simplifiedFlatCoordinates, 0, simplifiedEnds);\n return new Polygon(simplifiedFlatCoordinates, GeometryLayout.XY, simplifiedEnds);\n };\n /**\n * @inheritDoc\n * @api\n */\n Polygon.prototype.getType = function () {\n return GeometryType.POLYGON;\n };\n /**\n * @inheritDoc\n * @api\n */\n Polygon.prototype.intersectsExtent = function (extent) {\n return intersectsLinearRingArray(this.getOrientedFlatCoordinates(), 0, this.ends_, this.stride, extent);\n };\n /**\n * Set the coordinates of the polygon.\n * @param {!Array>} coordinates Coordinates.\n * @param {GeometryLayout=} opt_layout Layout.\n * @override\n * @api\n */\n Polygon.prototype.setCoordinates = function (coordinates, opt_layout) {\n this.setLayout(opt_layout, coordinates, 2);\n if (!this.flatCoordinates) {\n this.flatCoordinates = [];\n }\n var ends = deflateCoordinatesArray(this.flatCoordinates, 0, coordinates, this.stride, this.ends_);\n this.flatCoordinates.length = ends.length === 0 ? 0 : ends[ends.length - 1];\n this.changed();\n };\n return Polygon;\n}(SimpleGeometry));\nexport default Polygon;\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 var n = opt_n ? opt_n : 32;\n /** @type {Array} */\n var flatCoordinates = [];\n for (var i = 0; i < n; ++i) {\n extend(flatCoordinates, sphereOffset(center, radius, 2 * Math.PI * i / n, opt_sphereRadius));\n }\n flatCoordinates.push(flatCoordinates[0], flatCoordinates[1]);\n return new Polygon(flatCoordinates, GeometryLayout.XY, [flatCoordinates.length]);\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 var minX = extent[0];\n var minY = extent[1];\n var maxX = extent[2];\n var maxY = extent[3];\n var flatCoordinates = [minX, minY, minX, maxY, maxX, maxY, maxX, minY, minX, minY];\n return new Polygon(flatCoordinates, GeometryLayout.XY, [flatCoordinates.length]);\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 var sides = opt_sides ? opt_sides : 32;\n var stride = circle.getStride();\n var layout = circle.getLayout();\n var center = circle.getCenter();\n var arrayLength = stride * (sides + 1);\n var flatCoordinates = new Array(arrayLength);\n for (var i = 0; i < arrayLength; i += stride) {\n flatCoordinates[i] = 0;\n flatCoordinates[i + 1] = 0;\n for (var j = 2; j < stride; j++) {\n flatCoordinates[i + j] = center[j];\n }\n }\n var ends = [flatCoordinates.length];\n var polygon = new Polygon(flatCoordinates, layout, ends);\n makeRegular(polygon, center, circle.getRadius(), opt_angle);\n return polygon;\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 var flatCoordinates = polygon.getFlatCoordinates();\n var stride = polygon.getStride();\n var sides = flatCoordinates.length / stride - 1;\n var startAngle = opt_angle ? opt_angle : 0;\n for (var i = 0; i <= sides; ++i) {\n var offset = i * stride;\n var 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//# sourceMappingURL=Polygon.js.map","var __extends = (this && this.__extends) || (function () {\n var extendStatics = function (d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n return extendStatics(d, b);\n };\n return function (d, b) {\n extendStatics(d, b);\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n };\n})();\n/**\n * @module ol/Geolocation\n */\nimport BaseObject, { getChangeEventType } from './Object.js';\nimport BaseEvent from './events/Event.js';\nimport EventType from './events/EventType.js';\nimport { circular as circularPolygon } from './geom/Polygon.js';\nimport { toRadians } from './math.js';\nimport { get as getProjection, getTransformFromProjections, identityTransform } from './proj.js';\n/**\n * @enum {string}\n */\nvar 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 * @classdesc\n * Events emitted on Geolocation error.\n */\nvar GeolocationError = /** @class */ (function (_super) {\n __extends(GeolocationError, _super);\n /**\n * @param {PositionError} error error object.\n */\n function GeolocationError(error) {\n var _this = _super.call(this, EventType.ERROR) || this;\n /**\n * @type {number}\n */\n _this.code = error.code;\n /**\n * @type {string}\n */\n _this.message = error.message;\n return _this;\n }\n return GeolocationError;\n}(BaseEvent));\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 * @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 */\nvar Geolocation = /** @class */ (function (_super) {\n __extends(Geolocation, _super);\n /**\n * @param {Options=} opt_options Options.\n */\n function Geolocation(opt_options) {\n var _this = _super.call(this) || this;\n var options = opt_options || {};\n /**\n * The unprojected (EPSG:4326) device position.\n * @private\n * @type {?import(\"./coordinate.js\").Coordinate}\n */\n _this.position_ = null;\n /**\n * @private\n * @type {import(\"./proj.js\").TransformFunction}\n */\n _this.transform_ = identityTransform;\n /**\n * @private\n * @type {number|undefined}\n */\n _this.watchId_ = undefined;\n _this.addEventListener(getChangeEventType(Property.PROJECTION), _this.handleProjectionChanged_);\n _this.addEventListener(getChangeEventType(Property.TRACKING), _this.handleTrackingChanged_);\n if (options.projection !== undefined) {\n _this.setProjection(options.projection);\n }\n if (options.trackingOptions !== undefined) {\n _this.setTrackingOptions(options.trackingOptions);\n }\n _this.setTracking(options.tracking !== undefined ? options.tracking : false);\n return _this;\n }\n /**\n * @inheritDoc\n */\n Geolocation.prototype.disposeInternal = function () {\n this.setTracking(false);\n _super.prototype.disposeInternal.call(this);\n };\n /**\n * @private\n */\n Geolocation.prototype.handleProjectionChanged_ = function () {\n var projection = this.getProjection();\n if (projection) {\n this.transform_ = getTransformFromProjections(getProjection('EPSG:4326'), projection);\n if (this.position_) {\n this.set(Property.POSITION, this.transform_(this.position_));\n }\n }\n };\n /**\n * @private\n */\n Geolocation.prototype.handleTrackingChanged_ = function () {\n if ('geolocation' in navigator) {\n var tracking = this.getTracking();\n if (tracking && this.watchId_ === undefined) {\n this.watchId_ = navigator.geolocation.watchPosition(this.positionChange_.bind(this), this.positionError_.bind(this), 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 * @private\n * @param {Position} position position event.\n */\n Geolocation.prototype.positionChange_ = function (position) {\n var coords = position.coords;\n this.set(Property.ACCURACY, coords.accuracy);\n this.set(Property.ALTITUDE, coords.altitude === null ? undefined : coords.altitude);\n this.set(Property.ALTITUDE_ACCURACY, coords.altitudeAccuracy === null ?\n undefined : coords.altitudeAccuracy);\n this.set(Property.HEADING, coords.heading === null ?\n undefined : toRadians(coords.heading));\n if (!this.position_) {\n this.position_ = [coords.longitude, coords.latitude];\n }\n else {\n this.position_[0] = coords.longitude;\n this.position_[1] = coords.latitude;\n }\n var projectedPosition = this.transform_(this.position_);\n this.set(Property.POSITION, projectedPosition);\n this.set(Property.SPEED, coords.speed === null ? undefined : coords.speed);\n var geometry = circularPolygon(this.position_, coords.accuracy);\n geometry.applyTransform(this.transform_);\n this.set(Property.ACCURACY_GEOMETRY, geometry);\n this.changed();\n };\n /**\n * @private\n * @param {PositionError} error error object.\n */\n Geolocation.prototype.positionError_ = function (error) {\n this.setTracking(false);\n this.dispatchEvent(new GeolocationError(error));\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 Geolocation.prototype.getAccuracy = function () {\n return /** @type {number|undefined} */ (this.get(Property.ACCURACY));\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 Geolocation.prototype.getAccuracyGeometry = function () {\n return (\n /** @type {?import(\"./geom/Polygon.js\").default} */ (this.get(Property.ACCURACY_GEOMETRY) || null));\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 Geolocation.prototype.getAltitude = function () {\n return /** @type {number|undefined} */ (this.get(Property.ALTITUDE));\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 Geolocation.prototype.getAltitudeAccuracy = function () {\n return /** @type {number|undefined} */ (this.get(Property.ALTITUDE_ACCURACY));\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 Geolocation.prototype.getHeading = function () {\n return /** @type {number|undefined} */ (this.get(Property.HEADING));\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 Geolocation.prototype.getPosition = function () {\n return (\n /** @type {import(\"./coordinate.js\").Coordinate|undefined} */ (this.get(Property.POSITION)));\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 Geolocation.prototype.getProjection = function () {\n return (\n /** @type {import(\"./proj/Projection.js\").default|undefined} */ (this.get(Property.PROJECTION)));\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 Geolocation.prototype.getSpeed = function () {\n return /** @type {number|undefined} */ (this.get(Property.SPEED));\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 Geolocation.prototype.getTracking = function () {\n return /** @type {boolean} */ (this.get(Property.TRACKING));\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 Geolocation.prototype.getTrackingOptions = function () {\n return /** @type {PositionOptions|undefined} */ (this.get(Property.TRACKING_OPTIONS));\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 Geolocation.prototype.setProjection = function (projection) {\n this.set(Property.PROJECTION, getProjection(projection));\n };\n /**\n * Enable or disable tracking.\n * @param {boolean} tracking Enable tracking.\n * @observable\n * @api\n */\n Geolocation.prototype.setTracking = function (tracking) {\n this.set(Property.TRACKING, tracking);\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 Geolocation.prototype.setTrackingOptions = function (options) {\n this.set(Property.TRACKING_OPTIONS, options);\n };\n return Geolocation;\n}(BaseObject));\nexport default Geolocation;\n//# sourceMappingURL=Geolocation.js.map","/**\n * @module ol/Kinetic\n */\n/**\n * @classdesc\n * Implementation of inertial deceleration for map movement.\n *\n * @api\n */\nvar Kinetic = /** @class */ (function () {\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 function Kinetic(decay, minVelocity, delay) {\n /**\n * @private\n * @type {number}\n */\n this.decay_ = decay;\n /**\n * @private\n * @type {number}\n */\n this.minVelocity_ = minVelocity;\n /**\n * @private\n * @type {number}\n */\n this.delay_ = delay;\n /**\n * @private\n * @type {Array}\n */\n this.points_ = [];\n /**\n * @private\n * @type {number}\n */\n this.angle_ = 0;\n /**\n * @private\n * @type {number}\n */\n this.initialVelocity_ = 0;\n }\n /**\n * FIXME empty description for jsdoc\n */\n Kinetic.prototype.begin = function () {\n this.points_.length = 0;\n this.angle_ = 0;\n this.initialVelocity_ = 0;\n };\n /**\n * @param {number} x X.\n * @param {number} y Y.\n */\n Kinetic.prototype.update = function (x, y) {\n this.points_.push(x, y, Date.now());\n };\n /**\n * @return {boolean} Whether we should do kinetic animation.\n */\n Kinetic.prototype.end = function () {\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 var delay = Date.now() - this.delay_;\n var 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 // get the first point which still falls into the delay time\n var firstIndex = lastIndex - 3;\n while (firstIndex > 0 && this.points_[firstIndex + 2] > delay) {\n firstIndex -= 3;\n }\n var 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 var dx = this.points_[lastIndex] - this.points_[firstIndex];\n var 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 * @return {number} Total distance travelled (pixels).\n */\n Kinetic.prototype.getDistance = function () {\n return (this.minVelocity_ - this.initialVelocity_) / this.decay_;\n };\n /**\n * @return {number} Angle of the kinetic panning animation (radians).\n */\n Kinetic.prototype.getAngle = function () {\n return this.angle_;\n };\n return Kinetic;\n}());\nexport default Kinetic;\n//# sourceMappingURL=Kinetic.js.map","var __extends = (this && this.__extends) || (function () {\n var extendStatics = function (d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n return extendStatics(d, b);\n };\n return function (d, b) {\n extendStatics(d, b);\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n };\n})();\n/**\n * @module ol/MapEvent\n */\nimport Event from './events/Event.js';\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 */\nvar MapEvent = /** @class */ (function (_super) {\n __extends(MapEvent, _super);\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 function MapEvent(type, map, opt_frameState) {\n var _this = _super.call(this, type) || this;\n /**\n * The map where the event occurred.\n * @type {import(\"./PluggableMap.js\").default}\n * @api\n */\n _this.map = map;\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 return _this;\n }\n return MapEvent;\n}(Event));\nexport default MapEvent;\n//# sourceMappingURL=MapEvent.js.map","var __extends = (this && this.__extends) || (function () {\n var extendStatics = function (d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n return extendStatics(d, b);\n };\n return function (d, b) {\n extendStatics(d, b);\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n };\n})();\n/**\n * @module ol/MapBrowserEvent\n */\nimport MapEvent from './MapEvent.js';\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 */\nvar MapBrowserEvent = /** @class */ (function (_super) {\n __extends(MapBrowserEvent, _super);\n /**\n * @param {string} type Event type.\n * @param {import(\"./PluggableMap.js\").default} map Map.\n * @param {Event} browserEvent Browser event.\n * @param {boolean=} opt_dragging Is the map currently being dragged?\n * @param {?import(\"./PluggableMap.js\").FrameState=} opt_frameState Frame state.\n */\n function MapBrowserEvent(type, map, browserEvent, opt_dragging, opt_frameState) {\n var _this = _super.call(this, type, map, opt_frameState) || this;\n /**\n * The original browser event.\n * @const\n * @type {Event}\n * @api\n */\n _this.originalEvent = browserEvent;\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 * 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 * 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 return _this;\n }\n Object.defineProperty(MapBrowserEvent.prototype, \"pixel\", {\n /**\n * The map pixel relative to the viewport corresponding to the original browser event.\n * @type {import(\"./pixel.js\").Pixel}\n * @api\n */\n get: function () {\n if (!this.pixel_) {\n this.pixel_ = this.map.getEventPixel(this.originalEvent);\n }\n return this.pixel_;\n },\n set: function (pixel) {\n this.pixel_ = pixel;\n },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(MapBrowserEvent.prototype, \"coordinate\", {\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: function () {\n if (!this.coordinate_) {\n this.coordinate_ = this.map.getCoordinateFromPixel(this.pixel);\n }\n return this.coordinate_;\n },\n set: function (coordinate) {\n this.coordinate_ = coordinate;\n },\n enumerable: true,\n configurable: true\n });\n /**\n * Prevents the default browser action.\n * See https://developer.mozilla.org/en-US/docs/Web/API/event.preventDefault.\n * @override\n * @api\n */\n MapBrowserEvent.prototype.preventDefault = function () {\n _super.prototype.preventDefault.call(this);\n this.originalEvent.preventDefault();\n };\n /**\n * Prevents further propagation of the current event.\n * See https://developer.mozilla.org/en-US/docs/Web/API/event.stopPropagation.\n * @override\n * @api\n */\n MapBrowserEvent.prototype.stopPropagation = function () {\n _super.prototype.stopPropagation.call(this);\n this.originalEvent.stopPropagation();\n };\n return MapBrowserEvent;\n}(MapEvent));\nexport default MapBrowserEvent;\n//# sourceMappingURL=MapBrowserEvent.js.map","/**\n * @module ol/has\n */\nvar ua = typeof navigator !== 'undefined' ?\n navigator.userAgent.toLowerCase() : '';\n/**\n * User agent string says we are dealing with Firefox as browser.\n * @type {boolean}\n */\nexport var FIREFOX = ua.indexOf('firefox') !== -1;\n/**\n * User agent string says we are dealing with Safari as browser.\n * @type {boolean}\n */\nexport var SAFARI = ua.indexOf('safari') !== -1 && ua.indexOf('chrom') == -1;\n/**\n * User agent string says we are dealing with a WebKit engine.\n * @type {boolean}\n */\nexport var WEBKIT = ua.indexOf('webkit') !== -1 && ua.indexOf('edge') == -1;\n/**\n * User agent string says we are dealing with a Mac as platform.\n * @type {boolean}\n */\nexport var MAC = ua.indexOf('macintosh') !== -1;\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 var DEVICE_PIXEL_RATIO = typeof devicePixelRatio !== 'undefined' ? devicePixelRatio : 1;\n/**\n * The execution context is a worker with OffscreenCanvas available.\n * @const\n * @type {boolean}\n */\nexport var WORKER_OFFSCREEN_CANVAS = typeof WorkerGlobalScope !== 'undefined' && typeof OffscreenCanvas !== 'undefined' &&\n self instanceof WorkerGlobalScope; //eslint-disable-line\n/**\n * Image.prototype.decode() is supported.\n * @type {boolean}\n */\nexport var IMAGE_DECODE = typeof Image !== 'undefined' && Image.prototype.decode;\n/**\n * @type {boolean}\n */\nexport var PASSIVE_EVENT_LISTENERS = (function () {\n var passive = false;\n try {\n var options = Object.defineProperty({}, 'passive', {\n get: function () {\n passive = true;\n }\n });\n window.addEventListener('_', null, options);\n window.removeEventListener('_', null, options);\n }\n catch (error) {\n // passive not supported\n }\n return passive;\n})();\n//# sourceMappingURL=has.js.map","/**\n * @module ol/MapBrowserEventType\n */\nimport EventType from './events/EventType.js';\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 * 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 * A true double click, with no dragging.\n * @event module:ol/MapBrowserEvent~MapBrowserEvent#dblclick\n * @api\n */\n DBLCLICK: EventType.DBLCLICK,\n /**\n * Triggered when a pointer is dragged.\n * @event module:ol/MapBrowserEvent~MapBrowserEvent#pointerdrag\n * @api\n */\n POINTERDRAG: 'pointerdrag',\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 POINTERDOWN: 'pointerdown',\n POINTERUP: 'pointerup',\n POINTEROVER: 'pointerover',\n POINTEROUT: 'pointerout',\n POINTERENTER: 'pointerenter',\n POINTERLEAVE: 'pointerleave',\n POINTERCANCEL: 'pointercancel'\n};\n//# sourceMappingURL=MapBrowserEventType.js.map","var __extends = (this && this.__extends) || (function () {\n var extendStatics = function (d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n return extendStatics(d, b);\n };\n return function (d, b) {\n extendStatics(d, b);\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n };\n})();\n/**\n * @module ol/MapBrowserPointerEvent\n */\nimport MapBrowserEvent from './MapBrowserEvent.js';\nvar MapBrowserPointerEvent = /** @class */ (function (_super) {\n __extends(MapBrowserPointerEvent, _super);\n /**\n * @param {string} type Event type.\n * @param {import(\"./PluggableMap.js\").default} map Map.\n * @param {PointerEvent} pointerEvent Pointer event.\n * @param {boolean=} opt_dragging Is the map currently being dragged?\n * @param {?import(\"./PluggableMap.js\").FrameState=} opt_frameState Frame state.\n */\n function MapBrowserPointerEvent(type, map, pointerEvent, opt_dragging, opt_frameState) {\n var _this = _super.call(this, type, map, pointerEvent, opt_dragging, opt_frameState) || this;\n /**\n * @const\n * @type {PointerEvent}\n */\n _this.pointerEvent = pointerEvent;\n return _this;\n }\n return MapBrowserPointerEvent;\n}(MapBrowserEvent));\nexport default MapBrowserPointerEvent;\n//# sourceMappingURL=MapBrowserPointerEvent.js.map","/**\n * @module ol/pointer/EventType\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//# sourceMappingURL=EventType.js.map","/**\n * @module ol/MapBrowserEventHandler\n */\nvar __extends = (this && this.__extends) || (function () {\n var extendStatics = function (d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n return extendStatics(d, b);\n };\n return function (d, b) {\n extendStatics(d, b);\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n };\n})();\nimport 'elm-pep';\nimport { DEVICE_PIXEL_RATIO, PASSIVE_EVENT_LISTENERS } from './has.js';\nimport MapBrowserEventType from './MapBrowserEventType.js';\nimport MapBrowserPointerEvent from './MapBrowserPointerEvent.js';\nimport { listen, unlistenByKey } from './events.js';\nimport EventTarget from './events/Target.js';\nimport PointerEventType from './pointer/EventType.js';\nimport EventType from './events/EventType.js';\nvar MapBrowserEventHandler = /** @class */ (function (_super) {\n __extends(MapBrowserEventHandler, _super);\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 function MapBrowserEventHandler(map, moveTolerance) {\n var _this = _super.call(this, map) || this;\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 * @type {any}\n * @private\n */\n _this.clickTimeoutId_;\n /**\n * @type {boolean}\n * @private\n */\n _this.dragging_ = false;\n /**\n * @type {!Array}\n * @private\n */\n _this.dragListenerKeys_ = [];\n /**\n * @type {number}\n * @private\n */\n _this.moveTolerance_ = moveTolerance ?\n moveTolerance * DEVICE_PIXEL_RATIO : DEVICE_PIXEL_RATIO;\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 var element = _this.map_.getViewport();\n /**\n * @type {number}\n * @private\n */\n _this.activePointers_ = 0;\n /**\n * @type {!Object}\n * @private\n */\n _this.trackedTouches_ = {};\n _this.element_ = element;\n /**\n * @type {?import(\"./events.js\").EventsKey}\n * @private\n */\n _this.pointerdownListenerKey_ = listen(element, PointerEventType.POINTERDOWN, _this.handlePointerDown_, _this);\n /**\n * @type {PointerEvent}\n * @private\n */\n _this.originalPointerMoveEvent_;\n /**\n * @type {?import(\"./events.js\").EventsKey}\n * @private\n */\n _this.relayedListenerKey_ = listen(element, PointerEventType.POINTERMOVE, _this.relayEvent_, _this);\n /**\n * @private\n */\n _this.boundHandleTouchMove_ = _this.handleTouchMove_.bind(_this);\n _this.element_.addEventListener(EventType.TOUCHMOVE, _this.boundHandleTouchMove_, PASSIVE_EVENT_LISTENERS ? { passive: false } : false);\n return _this;\n }\n /**\n * @param {PointerEvent} pointerEvent Pointer\n * event.\n * @private\n */\n MapBrowserEventHandler.prototype.emulateClick_ = function (pointerEvent) {\n var newEvent = new MapBrowserPointerEvent(MapBrowserEventType.CLICK, this.map_, pointerEvent);\n this.dispatchEvent(newEvent);\n if (this.clickTimeoutId_ !== undefined) {\n // double-click\n clearTimeout(this.clickTimeoutId_);\n this.clickTimeoutId_ = undefined;\n newEvent = new MapBrowserPointerEvent(MapBrowserEventType.DBLCLICK, this.map_, pointerEvent);\n this.dispatchEvent(newEvent);\n }\n else {\n // click\n this.clickTimeoutId_ = setTimeout(function () {\n this.clickTimeoutId_ = undefined;\n var newEvent = new MapBrowserPointerEvent(MapBrowserEventType.SINGLECLICK, this.map_, pointerEvent);\n this.dispatchEvent(newEvent);\n }.bind(this), 250);\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 MapBrowserEventHandler.prototype.updateActivePointers_ = function (pointerEvent) {\n var event = pointerEvent;\n if (event.type == MapBrowserEventType.POINTERUP ||\n event.type == MapBrowserEventType.POINTERCANCEL) {\n delete this.trackedTouches_[event.pointerId];\n }\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 * @param {PointerEvent} pointerEvent Pointer\n * event.\n * @private\n */\n MapBrowserEventHandler.prototype.handlePointerUp_ = function (pointerEvent) {\n this.updateActivePointers_(pointerEvent);\n var newEvent = new MapBrowserPointerEvent(MapBrowserEventType.POINTERUP, this.map_, pointerEvent);\n this.dispatchEvent(newEvent);\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 (!newEvent.propagationStopped && !this.dragging_ && this.isMouseActionButton_(pointerEvent)) {\n this.emulateClick_(this.down_);\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 * @param {PointerEvent} pointerEvent Pointer\n * event.\n * @return {boolean} If the left mouse button was pressed.\n * @private\n */\n MapBrowserEventHandler.prototype.isMouseActionButton_ = function (pointerEvent) {\n return pointerEvent.button === 0;\n };\n /**\n * @param {PointerEvent} pointerEvent Pointer\n * event.\n * @private\n */\n MapBrowserEventHandler.prototype.handlePointerDown_ = function (pointerEvent) {\n this.updateActivePointers_(pointerEvent);\n var newEvent = new MapBrowserPointerEvent(MapBrowserEventType.POINTERDOWN, this.map_, pointerEvent);\n this.dispatchEvent(newEvent);\n this.down_ = pointerEvent;\n if (this.dragListenerKeys_.length === 0) {\n this.dragListenerKeys_.push(listen(document, MapBrowserEventType.POINTERMOVE, this.handlePointerMove_, this), listen(document, MapBrowserEventType.POINTERUP, this.handlePointerUp_, this), \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(this.element_, MapBrowserEventType.POINTERCANCEL, this.handlePointerUp_, this));\n }\n };\n /**\n * @param {PointerEvent} pointerEvent Pointer\n * event.\n * @private\n */\n MapBrowserEventHandler.prototype.handlePointerMove_ = function (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 var newEvent = new MapBrowserPointerEvent(MapBrowserEventType.POINTERDRAG, this.map_, pointerEvent, this.dragging_);\n this.dispatchEvent(newEvent);\n }\n };\n /**\n * Wrap and relay a pointer event. Note that this requires that the type\n * string for the MapBrowserPointerEvent matches the PointerEvent type.\n * @param {PointerEvent} pointerEvent Pointer\n * event.\n * @private\n */\n MapBrowserEventHandler.prototype.relayEvent_ = function (pointerEvent) {\n this.originalPointerMoveEvent_ = pointerEvent;\n var dragging = !!(this.down_ && this.isMoving_(pointerEvent));\n this.dispatchEvent(new MapBrowserPointerEvent(pointerEvent.type, this.map_, pointerEvent, dragging));\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 MapBrowserEventHandler.prototype.handleTouchMove_ = function (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 (!this.originalPointerMoveEvent_ || this.originalPointerMoveEvent_.defaultPrevented) {\n event.preventDefault();\n }\n };\n /**\n * @param {PointerEvent} pointerEvent Pointer\n * event.\n * @return {boolean} Is moving.\n * @private\n */\n MapBrowserEventHandler.prototype.isMoving_ = function (pointerEvent) {\n return this.dragging_ ||\n Math.abs(pointerEvent.clientX - this.down_.clientX) > this.moveTolerance_ ||\n Math.abs(pointerEvent.clientY - this.down_.clientY) > this.moveTolerance_;\n };\n /**\n * @inheritDoc\n */\n MapBrowserEventHandler.prototype.disposeInternal = function () {\n if (this.relayedListenerKey_) {\n unlistenByKey(this.relayedListenerKey_);\n this.relayedListenerKey_ = null;\n }\n this.element_.removeEventListener(EventType.TOUCHMOVE, this.boundHandleTouchMove_);\n if (this.pointerdownListenerKey_) {\n unlistenByKey(this.pointerdownListenerKey_);\n this.pointerdownListenerKey_ = null;\n }\n this.dragListenerKeys_.forEach(unlistenByKey);\n this.dragListenerKeys_.length = 0;\n this.element_ = null;\n _super.prototype.disposeInternal.call(this);\n };\n return MapBrowserEventHandler;\n}(EventTarget));\nexport default MapBrowserEventHandler;\n//# sourceMappingURL=MapBrowserEventHandler.js.map","/**\n * @module ol/MapEventType\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 * Triggered when the map starts moving.\n * @event module:ol/MapEvent~MapEvent#movestart\n * @api\n */\n MOVESTART: 'movestart',\n /**\n * Triggered after the map is moved.\n * @event module:ol/MapEvent~MapEvent#moveend\n * @api\n */\n MOVEEND: 'moveend'\n};\n//# sourceMappingURL=MapEventType.js.map","/**\n * @module ol/MapProperty\n */\n/**\n * @enum {string}\n */\nexport default {\n LAYERGROUP: 'layergroup',\n SIZE: 'size',\n TARGET: 'target',\n VIEW: 'view'\n};\n//# sourceMappingURL=MapProperty.js.map","/**\n * @module ol/render/EventType\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 * Triggered after a layer is rendered.\n * @event module:ol/render/Event~RenderEvent#postrender\n * @api\n */\n POSTRENDER: 'postrender',\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 * 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 * 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//# sourceMappingURL=EventType.js.map","/**\n * @module ol/TileState\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//# sourceMappingURL=TileState.js.map","/**\n * @module ol/structs/PriorityQueue\n */\nimport { assert } from '../asserts.js';\nimport { clear } from '../obj.js';\n/**\n * @type {number}\n */\nexport var DROP = Infinity;\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 */\nvar PriorityQueue = /** @class */ (function () {\n /**\n * @param {function(T): number} priorityFunction Priority function.\n * @param {function(T): string} keyFunction Key function.\n */\n function PriorityQueue(priorityFunction, keyFunction) {\n /**\n * @type {function(T): number}\n * @private\n */\n this.priorityFunction_ = priorityFunction;\n /**\n * @type {function(T): string}\n * @private\n */\n this.keyFunction_ = keyFunction;\n /**\n * @type {Array}\n * @private\n */\n this.elements_ = [];\n /**\n * @type {Array}\n * @private\n */\n this.priorities_ = [];\n /**\n * @type {!Object}\n * @private\n */\n this.queuedElements_ = {};\n }\n /**\n * FIXME empty description for jsdoc\n */\n PriorityQueue.prototype.clear = function () {\n this.elements_.length = 0;\n this.priorities_.length = 0;\n clear(this.queuedElements_);\n };\n /**\n * Remove and return the highest-priority element. O(log N).\n * @return {T} Element.\n */\n PriorityQueue.prototype.dequeue = function () {\n var elements = this.elements_;\n var priorities = this.priorities_;\n var element = elements[0];\n if (elements.length == 1) {\n elements.length = 0;\n priorities.length = 0;\n }\n else {\n elements[0] = elements.pop();\n priorities[0] = priorities.pop();\n this.siftUp_(0);\n }\n var elementKey = this.keyFunction_(element);\n delete this.queuedElements_[elementKey];\n return element;\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 PriorityQueue.prototype.enqueue = function (element) {\n assert(!(this.keyFunction_(element) in this.queuedElements_), 31); // Tried to enqueue an `element` that was already added to the queue\n var 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 * @return {number} Count.\n */\n PriorityQueue.prototype.getCount = function () {\n return this.elements_.length;\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 PriorityQueue.prototype.getLeftChildIndex_ = function (index) {\n return index * 2 + 1;\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 PriorityQueue.prototype.getRightChildIndex_ = function (index) {\n return index * 2 + 2;\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 PriorityQueue.prototype.getParentIndex_ = function (index) {\n return (index - 1) >> 1;\n };\n /**\n * Make this a heap. O(N).\n * @private\n */\n PriorityQueue.prototype.heapify_ = function () {\n var i;\n for (i = (this.elements_.length >> 1) - 1; i >= 0; i--) {\n this.siftUp_(i);\n }\n };\n /**\n * @return {boolean} Is empty.\n */\n PriorityQueue.prototype.isEmpty = function () {\n return this.elements_.length === 0;\n };\n /**\n * @param {string} key Key.\n * @return {boolean} Is key queued.\n */\n PriorityQueue.prototype.isKeyQueued = function (key) {\n return key in this.queuedElements_;\n };\n /**\n * @param {T} element Element.\n * @return {boolean} Is queued.\n */\n PriorityQueue.prototype.isQueued = function (element) {\n return this.isKeyQueued(this.keyFunction_(element));\n };\n /**\n * @param {number} index The index of the node to move down.\n * @private\n */\n PriorityQueue.prototype.siftUp_ = function (index) {\n var elements = this.elements_;\n var priorities = this.priorities_;\n var count = elements.length;\n var element = elements[index];\n var priority = priorities[index];\n var startIndex = index;\n while (index < (count >> 1)) {\n var lIndex = this.getLeftChildIndex_(index);\n var rIndex = this.getRightChildIndex_(index);\n var smallerChildIndex = rIndex < count &&\n priorities[rIndex] < priorities[lIndex] ?\n rIndex : lIndex;\n elements[index] = elements[smallerChildIndex];\n priorities[index] = priorities[smallerChildIndex];\n index = smallerChildIndex;\n }\n elements[index] = element;\n priorities[index] = priority;\n this.siftDown_(startIndex, index);\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 PriorityQueue.prototype.siftDown_ = function (startIndex, index) {\n var elements = this.elements_;\n var priorities = this.priorities_;\n var element = elements[index];\n var priority = priorities[index];\n while (index > startIndex) {\n var parentIndex = this.getParentIndex_(index);\n if (priorities[parentIndex] > priority) {\n elements[index] = elements[parentIndex];\n priorities[index] = priorities[parentIndex];\n index = parentIndex;\n }\n else {\n break;\n }\n }\n elements[index] = element;\n priorities[index] = priority;\n };\n /**\n * FIXME empty description for jsdoc\n */\n PriorityQueue.prototype.reprioritize = function () {\n var priorityFunction = this.priorityFunction_;\n var elements = this.elements_;\n var priorities = this.priorities_;\n var index = 0;\n var n = elements.length;\n var 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 }\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 return PriorityQueue;\n}());\nexport default PriorityQueue;\n//# sourceMappingURL=PriorityQueue.js.map","var __extends = (this && this.__extends) || (function () {\n var extendStatics = function (d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n return extendStatics(d, b);\n };\n return function (d, b) {\n extendStatics(d, b);\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n };\n})();\n/**\n * @module ol/TileQueue\n */\nimport TileState from './TileState.js';\nimport EventType from './events/EventType.js';\nimport PriorityQueue, { DROP } from './structs/PriorityQueue.js';\n/**\n * @typedef {function(import(\"./Tile.js\").default, string, import(\"./coordinate.js\").Coordinate, number): number} PriorityFunction\n */\nvar TileQueue = /** @class */ (function (_super) {\n __extends(TileQueue, _super);\n /**\n * @param {PriorityFunction} tilePriorityFunction Tile priority function.\n * @param {function(): ?} tileChangeCallback Function called on each tile change event.\n */\n function TileQueue(tilePriorityFunction, tileChangeCallback) {\n var _this = _super.call(this, \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 }) || this;\n /** @private */\n _this.boundHandleTileChange_ = _this.handleTileChange.bind(_this);\n /**\n * @private\n * @type {function(): ?}\n */\n _this.tileChangeCallback_ = tileChangeCallback;\n /**\n * @private\n * @type {number}\n */\n _this.tilesLoading_ = 0;\n /**\n * @private\n * @type {!Object}\n */\n _this.tilesLoadingKeys_ = {};\n return _this;\n }\n /**\n * @inheritDoc\n */\n TileQueue.prototype.enqueue = function (element) {\n var added = _super.prototype.enqueue.call(this, element);\n if (added) {\n var tile = element[0];\n tile.addEventListener(EventType.CHANGE, this.boundHandleTileChange_);\n }\n return added;\n };\n /**\n * @return {number} Number of tiles loading.\n */\n TileQueue.prototype.getTilesLoading = function () {\n return this.tilesLoading_;\n };\n /**\n * @param {import(\"./events/Event.js\").default} event Event.\n * @protected\n */\n TileQueue.prototype.handleTileChange = function (event) {\n var tile = /** @type {import(\"./Tile.js\").default} */ (event.target);\n var state = tile.getState();\n if (tile.hifi && state === TileState.LOADED || state === TileState.ERROR || state === TileState.EMPTY) {\n tile.removeEventListener(EventType.CHANGE, this.boundHandleTileChange_);\n var 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 * @param {number} maxTotalLoading Maximum number tiles to load simultaneously.\n * @param {number} maxNewLoads Maximum number of new tiles to load.\n */\n TileQueue.prototype.loadMoreTiles = function (maxTotalLoading, maxNewLoads) {\n var newLoads = 0;\n var state, tile, tileKey;\n while (this.tilesLoading_ < maxTotalLoading && newLoads < maxNewLoads &&\n this.getCount() > 0) {\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 return TileQueue;\n}(PriorityQueue));\nexport default TileQueue;\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(frameState, tile, tileSourceKey, tileCenter, tileResolution) {\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 var center = frameState.viewState.center;\n var deltaX = tileCenter[0] - center[0];\n var deltaY = tileCenter[1] - center[1];\n return 65536 * Math.log(tileResolution) +\n Math.sqrt(deltaX * deltaX + deltaY * deltaY) / tileResolution;\n}\n//# sourceMappingURL=TileQueue.js.map","/**\n * @module ol/centerconstraint\n */\nimport { clamp } from './math.js';\n/**\n * @typedef {function((import(\"./coordinate.js\").Coordinate|undefined), number, import(\"./size.js\").Size, boolean=): (import(\"./coordinate.js\").Coordinate|undefined)} Type\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 var viewWidth = onlyCenter ? 0 : size[0] * resolution;\n var viewHeight = onlyCenter ? 0 : size[1] * resolution;\n var minX = extent[0] + viewWidth / 2;\n var maxX = extent[2] - viewWidth / 2;\n var minY = extent[1] + viewHeight / 2;\n var maxY = extent[3] - viewHeight / 2;\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 var x = clamp(center[0], minX, maxX);\n var y = clamp(center[1], minY, maxY);\n var ratio = 30 * resolution;\n // during an interaction, allow some overscroll\n if (opt_isMoving && smooth) {\n x += -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 += -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 return [x, y];\n }\n else {\n return undefined;\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//# sourceMappingURL=centerconstraint.js.map","/**\n * @module ol/resolutionconstraint\n */\nimport { linearFindNearest } from './array.js';\nimport { getHeight, getWidth } from './extent.js';\nimport { clamp } from './math.js';\n/**\n * @typedef {function((number|undefined), number, import(\"./size.js\").Size, boolean=): (number|undefined)} Type\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(resolution, maxExtent, viewportSize, showFullExtent) {\n var xResolution = getWidth(maxExtent) / viewportSize[0];\n var yResolution = getHeight(maxExtent) / viewportSize[1];\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 * 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 var result = Math.min(resolution, maxResolution);\n var ratio = 50;\n result *= Math.log(1 + ratio * Math.max(0, resolution / maxResolution - 1)) / ratio + 1;\n if (minResolution) {\n result = Math.max(result, minResolution);\n result /= Math.log(1 + ratio * Math.max(0, minResolution / resolution - 1)) / ratio + 1;\n }\n return clamp(result, minResolution / 2, maxResolution * 2);\n}\n/**\n * @param {Array} 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(resolutions, opt_smooth, opt_maxExtent, opt_showFullExtent) {\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 var maxResolution = resolutions[0];\n var minResolution = resolutions[resolutions.length - 1];\n var cappedMaxRes = opt_maxExtent ?\n getViewportClampedResolution(maxResolution, opt_maxExtent, size, opt_showFullExtent) :\n maxResolution;\n // during interacting or animating, allow intermediary values\n if (opt_isMoving) {\n var smooth = opt_smooth !== undefined ? opt_smooth : true;\n if (!smooth) {\n return clamp(resolution, minResolution, cappedMaxRes);\n }\n return getSmoothClampedResolution(resolution, cappedMaxRes, minResolution);\n }\n var capped = Math.min(cappedMaxRes, resolution);\n var 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 }\n else {\n return undefined;\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(power, maxResolution, opt_minResolution, opt_smooth, opt_maxExtent, opt_showFullExtent) {\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 var cappedMaxRes = opt_maxExtent ?\n getViewportClampedResolution(maxResolution, opt_maxExtent, size, opt_showFullExtent) :\n maxResolution;\n var minResolution = opt_minResolution !== undefined ? opt_minResolution : 0;\n // during interacting or animating, allow intermediary values\n if (opt_isMoving) {\n var smooth = opt_smooth !== undefined ? opt_smooth : true;\n if (!smooth) {\n return clamp(resolution, minResolution, cappedMaxRes);\n }\n return getSmoothClampedResolution(resolution, cappedMaxRes, minResolution);\n }\n var tolerance = 1e-9;\n var minZoomLevel = Math.ceil(Math.log(maxResolution / cappedMaxRes) / Math.log(power) - tolerance);\n var offset = -direction * (0.5 - tolerance) + 0.5;\n var capped = Math.min(cappedMaxRes, resolution);\n var cappedZoomLevel = Math.floor(Math.log(maxResolution / capped) / Math.log(power) + offset);\n var zoomLevel = Math.max(minZoomLevel, cappedZoomLevel);\n var newResolution = maxResolution / Math.pow(power, zoomLevel);\n return clamp(newResolution, minResolution, cappedMaxRes);\n }\n else {\n return undefined;\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(maxResolution, minResolution, opt_smooth, opt_maxExtent, opt_showFullExtent) {\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 var cappedMaxRes = opt_maxExtent ?\n getViewportClampedResolution(maxResolution, opt_maxExtent, size, opt_showFullExtent) :\n maxResolution;\n var smooth = opt_smooth !== undefined ? opt_smooth : true;\n if (!smooth || !opt_isMoving) {\n return clamp(resolution, minResolution, cappedMaxRes);\n }\n return getSmoothClampedResolution(resolution, cappedMaxRes, minResolution);\n }\n else {\n return undefined;\n }\n });\n}\n//# sourceMappingURL=resolutionconstraint.js.map","/**\n * @module ol/rotationconstraint\n */\nimport { toRadians } from './math.js';\n/**\n * @typedef {function((number|undefined), boolean=): (number|undefined)} Type\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 }\n else {\n return undefined;\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 }\n else {\n return undefined;\n }\n}\n/**\n * @param {number} n N.\n * @return {Type} Rotation constraint.\n */\nexport function createSnapToN(n) {\n var 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 if (rotation !== undefined) {\n rotation = Math.floor(rotation / theta + 0.5) * theta;\n return rotation;\n }\n else {\n return undefined;\n }\n });\n}\n/**\n * @param {number=} opt_tolerance Tolerance.\n * @return {Type} Rotation constraint.\n */\nexport function createSnapToZero(opt_tolerance) {\n var 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 if (rotation !== undefined) {\n if (Math.abs(rotation) <= tolerance) {\n return 0;\n }\n else {\n return rotation;\n }\n }\n else {\n return undefined;\n }\n });\n}\n//# sourceMappingURL=rotationconstraint.js.map","/**\n * @module ol/ViewHint\n */\n/**\n * @enum {number}\n */\nexport default {\n ANIMATING: 0,\n INTERACTING: 1\n};\n//# sourceMappingURL=ViewHint.js.map","/**\n * @module ol/ViewProperty\n */\n/**\n * @enum {string}\n */\nexport default {\n CENTER: 'center',\n RESOLUTION: 'resolution',\n ROTATION: 'rotation'\n};\n//# sourceMappingURL=ViewProperty.js.map","/**\n * @module ol/string\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 var numberString = opt_precision !== undefined ? number.toFixed(opt_precision) : '' + number;\n var decimal = numberString.indexOf('.');\n decimal = decimal === -1 ? numberString.length : decimal;\n return decimal > width ? numberString : new Array(1 + width - decimal).join('0') + numberString;\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 var s1 = ('' + v1).split('.');\n var s2 = ('' + v2).split('.');\n for (var i = 0; i < Math.max(s1.length, s2.length); i++) {\n var n1 = parseInt(s1[i] || '0', 10);\n var n2 = parseInt(s2[i] || '0', 10);\n if (n1 > n2) {\n return 1;\n }\n if (n2 > n1) {\n return -1;\n }\n }\n return 0;\n}\n//# sourceMappingURL=string.js.map","/**\n * @module ol/coordinate\n */\nimport { modulo } from './math.js';\nimport { padNumber } from './string.js';\nimport { getWidth } from './extent.js';\n/**\n * An array of numbers representing an xy coordinate. Example: `[16, 48]`.\n * @typedef {Array} Coordinate\n * @api\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 * 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 * 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 var r = circle.getRadius();\n var center = circle.getCenter();\n var x0 = center[0];\n var y0 = center[1];\n var x1 = coordinate[0];\n var y1 = coordinate[1];\n var dx = x1 - x0;\n var dy = y1 - y0;\n if (dx === 0 && dy === 0) {\n dx = 1;\n }\n var d = Math.sqrt(dx * dx + dy * dy);\n var x = x0 + r * dx / d;\n var y = y0 + r * dy / d;\n return [x, y];\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} 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 var x0 = coordinate[0];\n var y0 = coordinate[1];\n var start = segment[0];\n var end = segment[1];\n var x1 = start[0];\n var y1 = start[1];\n var x2 = end[0];\n var y2 = end[1];\n var dx = x2 - x1;\n var dy = y2 - y1;\n var along = (dx === 0 && dy === 0) ? 0 :\n ((dx * (x0 - x1)) + (dy * (y0 - y1))) / ((dx * dx + dy * dy) || 0);\n var x, y;\n if (along <= 0) {\n x = x1;\n y = y1;\n }\n else if (along >= 1) {\n x = x2;\n y = y2;\n }\n else {\n x = x1 + along * dx;\n y = y1 + along * dy;\n }\n return [x, y];\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 * @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 var normalizedDegrees = modulo(degrees + 180, 360) - 180;\n var x = Math.abs(3600 * normalizedDegrees);\n var dflPrecision = opt_fractionDigits || 0;\n var precision = Math.pow(10, dflPrecision);\n var deg = Math.floor(x / 3600);\n var min = Math.floor((x - deg * 3600) / 60);\n var sec = x - (deg * 3600) - (min * 60);\n sec = Math.ceil(sec * precision) / precision;\n if (sec >= 60) {\n sec = 0;\n min += 1;\n }\n if (min >= 60) {\n min = 0;\n deg += 1;\n }\n return deg + '\\u00b0 ' + padNumber(min, 2) + '\\u2032 ' +\n padNumber(sec, 2, dflPrecision) + '\\u2033' +\n (normalizedDegrees == 0 ? '' : ' ' + hemispheres.charAt(normalizedDegrees < 0 ? 1 : 0));\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 }\n else {\n return '';\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 var equals = true;\n for (var 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 * 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 var cosAngle = Math.cos(angle);\n var sinAngle = Math.sin(angle);\n var x = coordinate[0] * cosAngle - coordinate[1] * sinAngle;\n var y = coordinate[1] * cosAngle + coordinate[0] * sinAngle;\n coordinate[0] = x;\n coordinate[1] = y;\n return coordinate;\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 * @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 var dx = coord1[0] - coord2[0];\n var dy = coord1[1] - coord2[1];\n return dx * dx + dy * dy;\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 * Calculate the squared distance from a coordinate to a line segment.\n *\n * @param {Coordinate} coordinate Coordinate of the point.\n * @param {Array} 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 * 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 degreesToStringHDMS('NS', coordinate[1], opt_fractionDigits) + ' ' +\n degreesToStringHDMS('EW', coordinate[0], opt_fractionDigits);\n }\n else {\n return '';\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 * 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 var projectionExtent = projection.getExtent();\n if (projection.canWrapX() && (coordinate[0] < projectionExtent[0] || coordinate[0] >= projectionExtent[2])) {\n var worldWidth = getWidth(projectionExtent);\n var worldsAway = Math.floor((coordinate[0] - projectionExtent[0]) / worldWidth);\n coordinate[0] -= (worldsAway * worldWidth);\n }\n return coordinate;\n}\n//# sourceMappingURL=coordinate.js.map","/**\n * @module ol/easing\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 * 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 * 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 * 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 * 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 }\n else {\n return 1 - inAndOut(2 * (t - 0.5));\n }\n}\n//# sourceMappingURL=easing.js.map","var __extends = (this && this.__extends) || (function () {\n var extendStatics = function (d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n return extendStatics(d, b);\n };\n return function (d, b) {\n extendStatics(d, b);\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n };\n})();\n/**\n * @module ol/View\n */\nimport { DEFAULT_TILE_SIZE } from './tilegrid/common.js';\nimport { VOID } from './functions.js';\nimport { createExtent, none as centerNone } from './centerconstraint.js';\nimport BaseObject from './Object.js';\nimport { createSnapToResolutions, createSnapToPower } from './resolutionconstraint.js';\nimport { createSnapToZero, createSnapToN, none as rotationNone, disable } from './rotationconstraint.js';\nimport ViewHint from './ViewHint.js';\nimport ViewProperty from './ViewProperty.js';\nimport { linearFindNearest } from './array.js';\nimport { assert } from './asserts.js';\nimport { add as addCoordinate, rotate as rotateCoordinate, equals as coordinatesEqual } from './coordinate.js';\nimport { inAndOut } from './easing.js';\nimport { getForViewAndSize, getCenter, getHeight, getWidth, isEmpty } from './extent.js';\nimport GeometryType from './geom/GeometryType.js';\nimport { fromExtent as polygonFromExtent } from './geom/Polygon.js';\nimport { clamp, modulo } from './math.js';\nimport { assign } from './obj.js';\nimport { createProjection, METERS_PER_UNIT, toUserCoordinate, toUserExtent, fromUserCoordinate, fromUserExtent, getUserProjection } from './proj.js';\nimport Units from './proj/Units.js';\nimport { equals } from './coordinate.js';\nimport { easeOut } from './easing.js';\nimport { createMinMaxResolution } from './resolutionconstraint.js';\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)} callback\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 * @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} [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)} [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 * @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} [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 * @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 * @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 * Default min zoom level for the map view.\n * @type {number}\n */\nvar DEFAULT_MIN_ZOOM = 0;\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 */\nvar View = /** @class */ (function (_super) {\n __extends(View, _super);\n /**\n * @param {ViewOptions=} opt_options View options.\n */\n function View(opt_options) {\n var _this = _super.call(this) || this;\n var options = assign({}, opt_options);\n /**\n * @private\n * @type {Array}\n */\n _this.hints_ = [0, 0];\n /**\n * @private\n * @type {Array>}\n */\n _this.animations_ = [];\n /**\n * @private\n * @type {number|undefined}\n */\n _this.updateAnimationKey_;\n /**\n * @private\n * @const\n * @type {import(\"./proj/Projection.js\").default}\n */\n _this.projection_ = createProjection(options.projection, 'EPSG:3857');\n /**\n * @private\n * @type {import(\"./size.js\").Size}\n */\n _this.viewportSize_ = [100, 100];\n /**\n * @private\n * @type {import(\"./coordinate.js\").Coordinate|undefined}\n */\n _this.targetCenter_ = null;\n /**\n * @private\n * @type {number|undefined}\n */\n _this.targetResolution_;\n /**\n * @private\n * @type {number|undefined}\n */\n _this.targetRotation_;\n /**\n * @private\n * @type {import(\"./coordinate.js\").Coordinate|undefined}\n */\n _this.cancelAnchor_ = undefined;\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 _this.applyOptions_(options);\n return _this;\n }\n /**\n * Set up the view with the given options.\n * @param {ViewOptions} options View options.\n */\n View.prototype.applyOptions_ = function (options) {\n /**\n * @type {Object}\n */\n var properties = {};\n var resolutionConstraintInfo = createResolutionConstraint(options);\n /**\n * @private\n * @type {number}\n */\n this.maxResolution_ = resolutionConstraintInfo.maxResolution;\n /**\n * @private\n * @type {number}\n */\n this.minResolution_ = resolutionConstraintInfo.minResolution;\n /**\n * @private\n * @type {number}\n */\n this.zoomFactor_ = resolutionConstraintInfo.zoomFactor;\n /**\n * @private\n * @type {Array|undefined}\n */\n this.resolutions_ = options.resolutions;\n /**\n * @private\n * @type {number}\n */\n this.minZoom_ = resolutionConstraintInfo.minZoom;\n var centerConstraint = createCenterConstraint(options);\n var resolutionConstraint = resolutionConstraintInfo.constraint;\n var rotationConstraint = createRotationConstraint(options);\n /**\n * @private\n * @type {Constraints}\n */\n this.constraints_ = {\n center: centerConstraint,\n resolution: resolutionConstraint,\n rotation: rotationConstraint\n };\n this.setRotation(options.rotation !== undefined ? options.rotation : 0);\n this.setCenterInternal(options.center !== undefined ? options.center : null);\n if (options.resolution !== undefined) {\n this.setResolution(options.resolution);\n }\n else if (options.zoom !== undefined) {\n this.setZoom(options.zoom);\n }\n this.setProperties(properties);\n /**\n * @private\n * @type {ViewOptions}\n */\n this.options_ = options;\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 View.prototype.getUpdatedOptions_ = function (newOptions) {\n var options = assign({}, this.options_);\n // preserve resolution (or zoom)\n if (options.resolution !== undefined) {\n options.resolution = this.getResolution();\n }\n else {\n options.zoom = this.getZoom();\n }\n // preserve center\n options.center = this.getCenterInternal();\n // preserve rotation\n options.rotation = this.getRotation();\n return assign({}, options, newOptions);\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 View.prototype.animate = function (var_args) {\n if (this.isDef() && !this.getAnimating()) {\n this.resolveConstraints(0);\n }\n var args = new Array(arguments.length);\n for (var i = 0; i < args.length; ++i) {\n var options = arguments[i];\n if (options.center) {\n options = assign({}, options);\n options.center = fromUserCoordinate(options.center, this.getProjection());\n }\n if (options.anchor) {\n options = assign({}, options);\n options.anchor = fromUserCoordinate(options.anchor, this.getProjection());\n }\n args[i] = options;\n }\n this.animateInternal.apply(this, args);\n };\n /**\n * @param {...(AnimationOptions|function(boolean): void)} var_args Animation options.\n */\n View.prototype.animateInternal = function (var_args) {\n var animationCount = arguments.length;\n var callback;\n if (animationCount > 1 && typeof arguments[animationCount - 1] === 'function') {\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 var 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 var start = Date.now();\n var center = this.targetCenter_.slice();\n var resolution = this.targetResolution_;\n var rotation = this.targetRotation_;\n var series = [];\n for (var i = 0; i < animationCount; ++i) {\n var options = /** @type {AnimationOptions} */ (arguments[i]);\n var 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 if (options.center) {\n animation.sourceCenter = center;\n animation.targetCenter = options.center.slice();\n center = animation.targetCenter;\n }\n if (options.zoom !== undefined) {\n animation.sourceResolution = resolution;\n animation.targetResolution = this.getResolutionForZoom(options.zoom);\n resolution = animation.targetResolution;\n }\n else if (options.resolution) {\n animation.sourceResolution = resolution;\n animation.targetResolution = options.resolution;\n resolution = animation.targetResolution;\n }\n if (options.rotation !== undefined) {\n animation.sourceRotation = rotation;\n var delta = modulo(options.rotation - rotation + Math.PI, 2 * Math.PI) - Math.PI;\n animation.targetRotation = rotation + delta;\n rotation = animation.targetRotation;\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 }\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 * Determine if the view is being animated.\n * @return {boolean} The view is being animated.\n * @api\n */\n View.prototype.getAnimating = function () {\n return this.hints_[ViewHint.ANIMATING] > 0;\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 View.prototype.getInteracting = function () {\n return this.hints_[ViewHint.INTERACTING] > 0;\n };\n /**\n * Cancel any ongoing animations.\n * @api\n */\n View.prototype.cancelAnimations = function () {\n this.setHint(ViewHint.ANIMATING, -this.hints_[ViewHint.ANIMATING]);\n var anchor;\n for (var i = 0, ii = this.animations_.length; i < ii; ++i) {\n var series = this.animations_[i];\n if (series[0].callback) {\n animationCallback(series[0].callback, false);\n }\n if (!anchor) {\n for (var j = 0, jj = series.length; j < jj; ++j) {\n var 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 * Update all animations.\n */\n View.prototype.updateAnimations_ = function () {\n if (this.updateAnimationKey_ !== undefined) {\n cancelAnimationFrame(this.updateAnimationKey_);\n this.updateAnimationKey_ = undefined;\n }\n if (!this.getAnimating()) {\n return;\n }\n var now = Date.now();\n var more = false;\n for (var i = this.animations_.length - 1; i >= 0; --i) {\n var series = this.animations_[i];\n var seriesComplete = true;\n for (var j = 0, jj = series.length; j < jj; ++j) {\n var animation = series[j];\n if (animation.complete) {\n continue;\n }\n var elapsed = now - animation.start;\n var fraction = animation.duration > 0 ? elapsed / animation.duration : 1;\n if (fraction >= 1) {\n animation.complete = true;\n fraction = 1;\n }\n else {\n seriesComplete = false;\n }\n var progress = animation.easing(fraction);\n if (animation.sourceCenter) {\n var x0 = animation.sourceCenter[0];\n var y0 = animation.sourceCenter[1];\n var x1 = animation.targetCenter[0];\n var y1 = animation.targetCenter[1];\n var x = x0 + progress * (x1 - x0);\n var y = y0 + progress * (y1 - y0);\n this.targetCenter_ = [x, y];\n }\n if (animation.sourceResolution && animation.targetResolution) {\n var resolution = progress === 1 ?\n animation.targetResolution :\n animation.sourceResolution + progress * (animation.targetResolution - animation.sourceResolution);\n if (animation.anchor) {\n var size = this.getViewportSize_(this.getRotation());\n var constrainedResolution = this.constraints_.resolution(resolution, 0, size, true);\n this.targetCenter_ = this.calculateCenterZoom(constrainedResolution, animation.anchor);\n }\n this.targetResolution_ = resolution;\n this.applyTargetState_(true);\n }\n if (animation.sourceRotation !== undefined && animation.targetRotation !== undefined) {\n var rotation = progress === 1 ?\n modulo(animation.targetRotation + Math.PI, 2 * Math.PI) - Math.PI :\n animation.sourceRotation + progress * (animation.targetRotation - animation.sourceRotation);\n if (animation.anchor) {\n var constrainedRotation = this.constraints_.rotation(rotation, true);\n this.targetCenter_ = this.calculateCenterRotate(constrainedRotation, animation.anchor);\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 var 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(this.updateAnimations_.bind(this));\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 View.prototype.calculateCenterRotate = function (rotation, anchor) {\n var center;\n var 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 * @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 View.prototype.calculateCenterZoom = function (resolution, anchor) {\n var center;\n var currentCenter = this.getCenterInternal();\n var currentResolution = this.getResolution();\n if (currentCenter !== undefined && currentResolution !== undefined) {\n var x = anchor[0] - resolution * (anchor[0] - currentCenter[0]) / currentResolution;\n var y = anchor[1] - resolution * (anchor[1] - currentCenter[1]) / currentResolution;\n center = [x, y];\n }\n return center;\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 View.prototype.getViewportSize_ = function (opt_rotation) {\n var size = this.viewportSize_;\n if (opt_rotation) {\n var w = size[0];\n var h = size[1];\n return [\n Math.abs(w * Math.cos(opt_rotation)) + Math.abs(h * Math.sin(opt_rotation)),\n Math.abs(w * Math.sin(opt_rotation)) + Math.abs(h * Math.cos(opt_rotation))\n ];\n }\n else {\n return size;\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 * @param {import(\"./size.js\").Size=} opt_size Viewport size; if undefined, [100, 100] is assumed\n */\n View.prototype.setViewportSize = function (opt_size) {\n this.viewportSize_ = Array.isArray(opt_size) ? opt_size.slice() : [100, 100];\n this.resolveConstraints(0);\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 View.prototype.getCenter = function () {\n var center = this.getCenterInternal();\n if (!center) {\n return center;\n }\n return toUserCoordinate(center, this.getProjection());\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 View.prototype.getCenterInternal = function () {\n return /** @type {import(\"./coordinate.js\").Coordinate|undefined} */ (this.get(ViewProperty.CENTER));\n };\n /**\n * @return {Constraints} Constraints.\n */\n View.prototype.getConstraints = function () {\n return this.constraints_;\n };\n /**\n * @return {boolean} Resolution constraint is set\n */\n View.prototype.getConstrainResolution = function () {\n return this.options_.constrainResolution;\n };\n /**\n * @param {Array=} opt_hints Destination array.\n * @return {Array} Hint.\n */\n View.prototype.getHints = function (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 }\n else {\n return this.hints_.slice();\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 View.prototype.calculateExtent = function (opt_size) {\n var extent = this.calculateExtentInternal(opt_size);\n return toUserExtent(extent, this.getProjection());\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 View.prototype.calculateExtentInternal = function (opt_size) {\n var size = opt_size || this.getViewportSize_();\n var center = /** @type {!import(\"./coordinate.js\").Coordinate} */ (this.getCenterInternal());\n assert(center, 1); // The view center is not defined\n var resolution = /** @type {!number} */ (this.getResolution());\n assert(resolution !== undefined, 2); // The view resolution is not defined\n var rotation = /** @type {!number} */ (this.getRotation());\n assert(rotation !== undefined, 3); // The view rotation is not defined\n return getForViewAndSize(center, resolution, rotation, size);\n };\n /**\n * Get the maximum resolution of the view.\n * @return {number} The maximum resolution of the view.\n * @api\n */\n View.prototype.getMaxResolution = function () {\n return this.maxResolution_;\n };\n /**\n * Get the minimum resolution of the view.\n * @return {number} The minimum resolution of the view.\n * @api\n */\n View.prototype.getMinResolution = function () {\n return this.minResolution_;\n };\n /**\n * Get the maximum zoom level for the view.\n * @return {number} The maximum zoom level.\n * @api\n */\n View.prototype.getMaxZoom = function () {\n return /** @type {number} */ (this.getZoomForResolution(this.minResolution_));\n };\n /**\n * Set a new maximum zoom level for the view.\n * @param {number} zoom The maximum zoom level.\n * @api\n */\n View.prototype.setMaxZoom = function (zoom) {\n this.applyOptions_(this.getUpdatedOptions_({ maxZoom: zoom }));\n };\n /**\n * Get the minimum zoom level for the view.\n * @return {number} The minimum zoom level.\n * @api\n */\n View.prototype.getMinZoom = function () {\n return /** @type {number} */ (this.getZoomForResolution(this.maxResolution_));\n };\n /**\n * Set a new minimum zoom level for the view.\n * @param {number} zoom The minimum zoom level.\n * @api\n */\n View.prototype.setMinZoom = function (zoom) {\n this.applyOptions_(this.getUpdatedOptions_({ minZoom: zoom }));\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 View.prototype.setConstrainResolution = function (enabled) {\n this.applyOptions_(this.getUpdatedOptions_({ constrainResolution: enabled }));\n };\n /**\n * Get the view projection.\n * @return {import(\"./proj/Projection.js\").default} The projection of the view.\n * @api\n */\n View.prototype.getProjection = function () {\n return this.projection_;\n };\n /**\n * Get the view resolution.\n * @return {number|undefined} The resolution of the view.\n * @observable\n * @api\n */\n View.prototype.getResolution = function () {\n return /** @type {number|undefined} */ (this.get(ViewProperty.RESOLUTION));\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|undefined} The resolutions of the view.\n * @api\n */\n View.prototype.getResolutions = function () {\n return this.resolutions_;\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 View.prototype.getResolutionForExtent = function (extent, opt_size) {\n return this.getResolutionForExtentInternal(fromUserExtent(extent, this.getProjection()), opt_size);\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 View.prototype.getResolutionForExtentInternal = function (extent, opt_size) {\n var size = opt_size || this.getViewportSize_();\n var xResolution = getWidth(extent) / size[0];\n var yResolution = getHeight(extent) / size[1];\n return Math.max(xResolution, yResolution);\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 View.prototype.getResolutionForValueFunction = function (opt_power) {\n var power = opt_power || 2;\n var maxResolution = this.getConstrainedResolution(this.maxResolution_);\n var minResolution = this.minResolution_;\n var 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 var resolution = maxResolution / Math.pow(power, value * max);\n return resolution;\n });\n };\n /**\n * Get the view rotation.\n * @return {number} The rotation of the view in radians.\n * @observable\n * @api\n */\n View.prototype.getRotation = function () {\n return /** @type {number} */ (this.get(ViewProperty.ROTATION));\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 View.prototype.getValueForResolutionFunction = function (opt_power) {\n var logPower = Math.log(opt_power || 2);\n var maxResolution = this.getConstrainedResolution(this.maxResolution_);\n var minResolution = this.minResolution_;\n var max = Math.log(maxResolution / minResolution) / logPower;\n return (\n /**\n * @param {number} resolution Resolution.\n * @return {number} Value.\n */\n function (resolution) {\n var value = (Math.log(maxResolution / resolution) / logPower) / max;\n return value;\n });\n };\n /**\n * @return {State} View state.\n */\n View.prototype.getState = function () {\n var center = /** @type {import(\"./coordinate.js\").Coordinate} */ (this.getCenterInternal());\n var projection = this.getProjection();\n var resolution = /** @type {number} */ (this.getResolution());\n var 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 * 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 View.prototype.getZoom = function () {\n var zoom;\n var resolution = this.getResolution();\n if (resolution !== undefined) {\n zoom = this.getZoomForResolution(resolution);\n }\n return zoom;\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 View.prototype.getZoomForResolution = function (resolution) {\n var offset = this.minZoom_ || 0;\n var max, zoomFactor;\n if (this.resolutions_) {\n var 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 }\n else {\n zoomFactor = max / this.resolutions_[nearest + 1];\n }\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 * 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 View.prototype.getResolutionForZoom = function (zoom) {\n if (this.resolutions_) {\n if (this.resolutions_.length <= 1) {\n return 0;\n }\n var baseLevel = clamp(Math.floor(zoom), 0, this.resolutions_.length - 2);\n var zoomFactor = this.resolutions_[baseLevel] / this.resolutions_[baseLevel + 1];\n return this.resolutions_[baseLevel] / Math.pow(zoomFactor, clamp(zoom - baseLevel, 0, 1));\n }\n else {\n return this.maxResolution_ / Math.pow(this.zoomFactor_, zoom - this.minZoom_);\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 View.prototype.fit = function (geometryOrExtent, opt_options) {\n var options = assign({ size: this.getViewportSize_() }, opt_options || {});\n /** @type {import(\"./geom/SimpleGeometry.js\").default} */\n var geometry;\n assert(Array.isArray(geometryOrExtent) || typeof /** @type {?} */ (geometryOrExtent).getSimplifiedGeometry === 'function', 24); // 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 var extent = fromUserExtent(geometryOrExtent, this.getProjection());\n geometry = polygonFromExtent(extent);\n }\n else if (geometryOrExtent.getType() === GeometryType.CIRCLE) {\n var extent = fromUserExtent(geometryOrExtent.getExtent(), this.getProjection());\n geometry = polygonFromExtent(extent);\n geometry.rotate(this.getRotation(), getCenter(extent));\n }\n else {\n var userProjection = getUserProjection();\n if (userProjection) {\n geometry = /** @type {import(\"./geom/SimpleGeometry.js\").default} */ (geometryOrExtent.clone().transform(userProjection, this.getProjection()));\n }\n else {\n geometry = geometryOrExtent;\n }\n }\n this.fitInternal(geometry, options);\n };\n /**\n * @param {import(\"./geom/SimpleGeometry.js\").default} geometry The geometry.\n * @param {FitOptions=} opt_options Options.\n */\n View.prototype.fitInternal = function (geometry, opt_options) {\n var options = opt_options || {};\n var size = options.size;\n if (!size) {\n size = this.getViewportSize_();\n }\n var padding = options.padding !== undefined ? options.padding : [0, 0, 0, 0];\n var nearest = options.nearest !== undefined ? options.nearest : false;\n var minResolution;\n if (options.minResolution !== undefined) {\n minResolution = options.minResolution;\n }\n else if (options.maxZoom !== undefined) {\n minResolution = this.getResolutionForZoom(options.maxZoom);\n }\n else {\n minResolution = 0;\n }\n var coords = geometry.getFlatCoordinates();\n // calculate rotated extent\n var rotation = this.getRotation();\n var cosAngle = Math.cos(-rotation);\n var sinAngle = Math.sin(-rotation);\n var minRotX = +Infinity;\n var minRotY = +Infinity;\n var maxRotX = -Infinity;\n var maxRotY = -Infinity;\n var stride = geometry.getStride();\n for (var i = 0, ii = coords.length; i < ii; i += stride) {\n var rotX = coords[i] * cosAngle - coords[i + 1] * sinAngle;\n var 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 // calculate resolution\n var resolution = this.getResolutionForExtentInternal([minRotX, minRotY, maxRotX, maxRotY], [size[0] - padding[1] - padding[3], size[1] - padding[0] - padding[2]]);\n resolution = isNaN(resolution) ? minResolution :\n Math.max(resolution, minResolution);\n resolution = this.getConstrainedResolution(resolution, nearest ? 0 : 1);\n // calculate center\n sinAngle = -sinAngle; // go back to original rotation\n var centerRotX = (minRotX + maxRotX) / 2;\n var centerRotY = (minRotY + maxRotY) / 2;\n centerRotX += (padding[1] - padding[3]) / 2 * resolution;\n centerRotY += (padding[0] - padding[2]) / 2 * resolution;\n var centerX = centerRotX * cosAngle - centerRotY * sinAngle;\n var centerY = centerRotY * cosAngle + centerRotX * sinAngle;\n var center = [centerX, centerY];\n var callback = options.callback ? options.callback : VOID;\n if (options.duration !== undefined) {\n this.animateInternal({\n resolution: resolution,\n center: this.getConstrainedCenter(center, resolution),\n duration: options.duration,\n easing: options.easing\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 * 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 View.prototype.centerOn = function (coordinate, size, position) {\n this.centerOnInternal(fromUserCoordinate(coordinate, this.getProjection()), size, position);\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 View.prototype.centerOnInternal = function (coordinate, size, position) {\n // calculate rotated position\n var rotation = this.getRotation();\n var cosAngle = Math.cos(-rotation);\n var sinAngle = Math.sin(-rotation);\n var rotX = coordinate[0] * cosAngle - coordinate[1] * sinAngle;\n var rotY = coordinate[1] * cosAngle + coordinate[0] * sinAngle;\n var resolution = this.getResolution();\n rotX += (size[0] / 2 - position[0]) * resolution;\n rotY += (position[1] - size[1] / 2) * resolution;\n // go back to original angle\n sinAngle = -sinAngle; // go back to original rotation\n var centerX = rotX * cosAngle - rotY * sinAngle;\n var centerY = rotY * cosAngle + rotX * sinAngle;\n this.setCenterInternal([centerX, centerY]);\n };\n /**\n * @return {boolean} Is defined.\n */\n View.prototype.isDef = function () {\n return !!this.getCenterInternal() && this.getResolution() !== undefined;\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 View.prototype.adjustCenter = function (deltaCoordinates) {\n var center = toUserCoordinate(this.targetCenter_, this.getProjection());\n this.setCenter([center[0] + deltaCoordinates[0], center[1] + deltaCoordinates[1]]);\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 View.prototype.adjustCenterInternal = function (deltaCoordinates) {\n var center = this.targetCenter_;\n this.setCenterInternal([center[0] + deltaCoordinates[0], center[1] + deltaCoordinates[1]]);\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 View.prototype.adjustResolution = function (ratio, opt_anchor) {\n var anchor = opt_anchor && fromUserCoordinate(opt_anchor, this.getProjection());\n this.adjustResolutionInternal(ratio, anchor);\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 View.prototype.adjustResolutionInternal = function (ratio, opt_anchor) {\n var isMoving = this.getAnimating() || this.getInteracting();\n var size = this.getViewportSize_(this.getRotation());\n var newResolution = this.constraints_.resolution(this.targetResolution_ * ratio, 0, size, isMoving);\n if (opt_anchor) {\n this.targetCenter_ = this.calculateCenterZoom(newResolution, opt_anchor);\n }\n this.targetResolution_ *= ratio;\n this.applyTargetState_();\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 View.prototype.adjustZoom = function (delta, opt_anchor) {\n this.adjustResolution(Math.pow(this.zoomFactor_, -delta), opt_anchor);\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 View.prototype.adjustRotation = function (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 * @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 View.prototype.adjustRotationInternal = function (delta, opt_anchor) {\n var isMoving = this.getAnimating() || this.getInteracting();\n var newRotation = this.constraints_.rotation(this.targetRotation_ + delta, isMoving);\n if (opt_anchor) {\n this.targetCenter_ = this.calculateCenterRotate(newRotation, opt_anchor);\n }\n this.targetRotation_ += delta;\n this.applyTargetState_();\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 View.prototype.setCenter = function (center) {\n this.setCenterInternal(fromUserCoordinate(center, this.getProjection()));\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 View.prototype.setCenterInternal = function (center) {\n this.targetCenter_ = center;\n this.applyTargetState_();\n };\n /**\n * @param {ViewHint} hint Hint.\n * @param {number} delta Delta.\n * @return {number} New value.\n */\n View.prototype.setHint = function (hint, delta) {\n this.hints_[hint] += delta;\n this.changed();\n return this.hints_[hint];\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 View.prototype.setResolution = function (resolution) {\n this.targetResolution_ = resolution;\n this.applyTargetState_();\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 View.prototype.setRotation = function (rotation) {\n this.targetRotation_ = rotation;\n this.applyTargetState_();\n };\n /**\n * Zoom to a specific zoom level. Any resolution constrain will apply.\n * @param {number} zoom Zoom level.\n * @api\n */\n View.prototype.setZoom = function (zoom) {\n this.setResolution(this.getResolutionForZoom(zoom));\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 View.prototype.applyTargetState_ = function (opt_doNotCancelAnims, opt_forceMoving) {\n var isMoving = this.getAnimating() || this.getInteracting() || opt_forceMoving;\n // compute rotation\n var newRotation = this.constraints_.rotation(this.targetRotation_, isMoving);\n var size = this.getViewportSize_(newRotation);\n var newResolution = this.constraints_.resolution(this.targetResolution_, 0, size, isMoving);\n var newCenter = this.constraints_.center(this.targetCenter_, newResolution, size, isMoving);\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 (!this.get(ViewProperty.CENTER) || !equals(this.get(ViewProperty.CENTER), newCenter)) {\n this.set(ViewProperty.CENTER, newCenter);\n }\n if (this.getAnimating() && !opt_doNotCancelAnims) {\n this.cancelAnimations();\n }\n this.cancelAnchor_ = undefined;\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 View.prototype.resolveConstraints = function (opt_duration, opt_resolutionDirection, opt_anchor) {\n var duration = opt_duration !== undefined ? opt_duration : 200;\n var direction = opt_resolutionDirection || 0;\n var newRotation = this.constraints_.rotation(this.targetRotation_);\n var size = this.getViewportSize_(newRotation);\n var newResolution = this.constraints_.resolution(this.targetResolution_, direction, size);\n var newCenter = this.constraints_.center(this.targetCenter_, newResolution, size);\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 var anchor = opt_anchor || (duration === 0 ? this.cancelAnchor_ : undefined);\n this.cancelAnchor_ = undefined;\n if (this.getResolution() !== newResolution ||\n this.getRotation() !== newRotation ||\n !this.getCenterInternal() ||\n !equals(this.getCenterInternal(), newCenter)) {\n if (this.getAnimating()) {\n this.cancelAnimations();\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 * 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 View.prototype.beginInteraction = function () {\n this.resolveConstraints(0);\n this.setHint(ViewHint.INTERACTING, 1);\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 View.prototype.endInteraction = function (opt_duration, opt_resolutionDirection, opt_anchor) {\n var anchor = opt_anchor && fromUserCoordinate(opt_anchor, this.getProjection());\n this.endInteractionInternal(opt_duration, opt_resolutionDirection, anchor);\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 View.prototype.endInteractionInternal = function (opt_duration, opt_resolutionDirection, opt_anchor) {\n this.setHint(ViewHint.INTERACTING, -1);\n this.resolveConstraints(opt_duration, opt_resolutionDirection, opt_anchor);\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 View.prototype.getConstrainedCenter = function (targetCenter, opt_targetResolution) {\n var size = this.getViewportSize_(this.getRotation());\n return this.constraints_.center(targetCenter, opt_targetResolution || this.getResolution(), size);\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 View.prototype.getConstrainedZoom = function (targetZoom, opt_direction) {\n var targetRes = this.getResolutionForZoom(targetZoom);\n return this.getZoomForResolution(this.getConstrainedResolution(targetRes, opt_direction));\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 View.prototype.getConstrainedResolution = function (targetResolution, opt_direction) {\n var direction = opt_direction || 0;\n var size = this.getViewportSize_(this.getRotation());\n return this.constraints_.resolution(targetResolution, direction, size);\n };\n return View;\n}(BaseObject));\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 * @param {ViewOptions} options View options.\n * @return {import(\"./centerconstraint.js\").Type} The constraint.\n */\nexport function createCenterConstraint(options) {\n if (options.extent !== undefined) {\n var smooth = options.smoothExtentConstraint !== undefined ? options.smoothExtentConstraint : true;\n return createExtent(options.extent, options.constrainOnlyCenter, smooth);\n }\n var projection = createProjection(options.projection, 'EPSG:3857');\n if (options.multiWorld !== true && projection.isGlobal()) {\n var extent = projection.getExtent().slice();\n extent[0] = -Infinity;\n extent[2] = Infinity;\n return createExtent(extent, false, false);\n }\n return centerNone;\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 var resolutionConstraint;\n var maxResolution;\n var minResolution;\n // TODO: move these to be ol constants\n // see https://github.com/openlayers/openlayers/issues/2076\n var defaultMaxZoom = 28;\n var defaultZoomFactor = 2;\n var minZoom = options.minZoom !== undefined ?\n options.minZoom : DEFAULT_MIN_ZOOM;\n var maxZoom = options.maxZoom !== undefined ?\n options.maxZoom : defaultMaxZoom;\n var zoomFactor = options.zoomFactor !== undefined ?\n options.zoomFactor : defaultZoomFactor;\n var multiWorld = options.multiWorld !== undefined ?\n options.multiWorld : false;\n var smooth = options.smoothResolutionConstraint !== undefined ? options.smoothResolutionConstraint : true;\n var showFullExtent = options.showFullExtent !== undefined ? options.showFullExtent : false;\n var projection = createProjection(options.projection, 'EPSG:3857');\n var projExtent = projection.getExtent();\n var constrainOnlyCenter = options.constrainOnlyCenter;\n var extent = options.extent;\n if (!multiWorld && !extent && projection.isGlobal()) {\n constrainOnlyCenter = false;\n extent = projExtent;\n }\n if (options.resolutions !== undefined) {\n var resolutions = options.resolutions;\n maxResolution = resolutions[minZoom];\n minResolution = resolutions[maxZoom] !== undefined ?\n resolutions[maxZoom] : resolutions[resolutions.length - 1];\n if (options.constrainResolution) {\n resolutionConstraint = createSnapToResolutions(resolutions, smooth, !constrainOnlyCenter && extent, showFullExtent);\n }\n else {\n resolutionConstraint = createMinMaxResolution(maxResolution, minResolution, smooth, !constrainOnlyCenter && extent, showFullExtent);\n }\n }\n else {\n // calculate the default min and max resolution\n var size = !projExtent ?\n // use an extent that can fit the whole world if need be\n 360 * METERS_PER_UNIT[Units.DEGREES] /\n projection.getMetersPerUnit() :\n Math.max(getWidth(projExtent), getHeight(projExtent));\n var defaultMaxResolution = size / DEFAULT_TILE_SIZE / Math.pow(defaultZoomFactor, DEFAULT_MIN_ZOOM);\n var defaultMinResolution = defaultMaxResolution / Math.pow(defaultZoomFactor, defaultMaxZoom - DEFAULT_MIN_ZOOM);\n // user provided maxResolution takes precedence\n maxResolution = options.maxResolution;\n if (maxResolution !== undefined) {\n minZoom = 0;\n }\n else {\n maxResolution = defaultMaxResolution / Math.pow(zoomFactor, minZoom);\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 }\n else {\n minResolution = defaultMaxResolution / Math.pow(zoomFactor, maxZoom);\n }\n }\n else {\n minResolution = defaultMinResolution;\n }\n }\n // given discrete zoom levels, minResolution may be different than provided\n maxZoom = minZoom + Math.floor(Math.log(maxResolution / minResolution) / Math.log(zoomFactor));\n minResolution = maxResolution / Math.pow(zoomFactor, maxZoom - minZoom);\n if (options.constrainResolution) {\n resolutionConstraint = createSnapToPower(zoomFactor, maxResolution, minResolution, smooth, !constrainOnlyCenter && extent, showFullExtent);\n }\n else {\n resolutionConstraint = createMinMaxResolution(maxResolution, minResolution, smooth, !constrainOnlyCenter && extent, showFullExtent);\n }\n }\n return { constraint: resolutionConstraint, maxResolution: maxResolution,\n minResolution: minResolution, minZoom: minZoom, zoomFactor: zoomFactor };\n}\n/**\n * @param {ViewOptions} options View options.\n * @return {import(\"./rotationconstraint.js\").Type} Rotation constraint.\n */\nexport function createRotationConstraint(options) {\n var enableRotation = options.enableRotation !== undefined ?\n options.enableRotation : true;\n if (enableRotation) {\n var constrainRotation = options.constrainRotation;\n if (constrainRotation === undefined || constrainRotation === true) {\n return createSnapToZero();\n }\n else if (constrainRotation === false) {\n return rotationNone;\n }\n else if (typeof constrainRotation === 'number') {\n return createSnapToN(constrainRotation);\n }\n else {\n return rotationNone;\n }\n }\n else {\n return disable;\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}\nexport default View;\n//# sourceMappingURL=View.js.map","/**\n * @module ol/tilegrid/common\n */\n/**\n * Default maximum zoom for default tile grids.\n * @type {number}\n */\nexport var DEFAULT_MAX_ZOOM = 42;\n/**\n * Default tile size.\n * @type {number}\n */\nexport var DEFAULT_TILE_SIZE = 256;\n//# sourceMappingURL=common.js.map","import { WORKER_OFFSCREEN_CANVAS } from './has.js';\n/**\n * @module ol/dom\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=} 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 var canvas = 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 * 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 var width = element.offsetWidth;\n var style = getComputedStyle(element);\n width += parseInt(style.marginLeft, 10) + parseInt(style.marginRight, 10);\n return width;\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 var height = element.offsetHeight;\n var style = getComputedStyle(element);\n height += parseInt(style.marginTop, 10) + parseInt(style.marginBottom, 10);\n return height;\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 var parent = oldNode.parentNode;\n if (parent) {\n parent.replaceChild(newNode, oldNode);\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 * @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 * 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} children The desired children.\n */\nexport function replaceChildren(node, children) {\n var oldChildren = node.childNodes;\n for (var i = 0; true; ++i) {\n var oldChild = oldChildren[i];\n var newChild = children[i];\n // check if our work is done\n if (!oldChild && !newChild) {\n break;\n }\n // check if children match\n if (oldChild === newChild) {\n continue;\n }\n // check if a new child needs to be added\n if (!oldChild) {\n node.appendChild(newChild);\n continue;\n }\n // check if an old child needs to be removed\n if (!newChild) {\n node.removeChild(oldChild);\n --i;\n continue;\n }\n // reorder\n node.insertBefore(newChild, oldChild);\n }\n}\n//# sourceMappingURL=dom.js.map","/**\n * @module ol/layer/Property\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//# sourceMappingURL=Property.js.map","var __extends = (this && this.__extends) || (function () {\n var extendStatics = function (d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n return extendStatics(d, b);\n };\n return function (d, b) {\n extendStatics(d, b);\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n };\n})();\n/**\n * @module ol/layer/Base\n */\nimport { abstract } from '../util.js';\nimport BaseObject from '../Object.js';\nimport LayerProperty from './Property.js';\nimport { clamp } from '../math.js';\nimport { assign } from '../obj.js';\nimport { assert } from '../asserts.js';\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 * @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 */\nvar BaseLayer = /** @class */ (function (_super) {\n __extends(BaseLayer, _super);\n /**\n * @param {Options} options Layer options.\n */\n function BaseLayer(options) {\n var _this = _super.call(this) || this;\n /**\n * @type {Object}\n */\n var properties = assign({}, options);\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 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 * @type {string}\n * @private\n */\n _this.className_ = properties.className !== undefined ? options.className : 'ol-layer';\n delete properties.className;\n _this.setProperties(properties);\n /**\n * @type {import(\"./Layer.js\").State}\n * @private\n */\n _this.state_ = null;\n return _this;\n }\n /**\n * @return {string} CSS class name.\n */\n BaseLayer.prototype.getClassName = function () {\n return this.className_;\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 BaseLayer.prototype.getLayerState = function (opt_managed) {\n /** @type {import(\"./Layer.js\").State} */\n var state = this.state_ || /** @type {?} */ ({\n layer: this,\n managed: opt_managed === undefined ? true : opt_managed\n });\n var 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 = 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 return state;\n };\n /**\n * @abstract\n * @param {Array=} opt_array Array of layers (to be\n * modified in place).\n * @return {Array} Array of layers.\n */\n BaseLayer.prototype.getLayersArray = function (opt_array) {\n return abstract();\n };\n /**\n * @abstract\n * @param {Array=} opt_states Optional list of layer\n * states (to be modified in place).\n * @return {Array} List of layer states.\n */\n BaseLayer.prototype.getLayerStatesArray = function (opt_states) {\n return abstract();\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 BaseLayer.prototype.getExtent = function () {\n return (\n /** @type {import(\"../extent.js\").Extent|undefined} */ (this.get(LayerProperty.EXTENT)));\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 BaseLayer.prototype.getMaxResolution = function () {\n return /** @type {number} */ (this.get(LayerProperty.MAX_RESOLUTION));\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 BaseLayer.prototype.getMinResolution = function () {\n return /** @type {number} */ (this.get(LayerProperty.MIN_RESOLUTION));\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 BaseLayer.prototype.getMinZoom = function () {\n return /** @type {number} */ (this.get(LayerProperty.MIN_ZOOM));\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 BaseLayer.prototype.getMaxZoom = function () {\n return /** @type {number} */ (this.get(LayerProperty.MAX_ZOOM));\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 BaseLayer.prototype.getOpacity = function () {\n return /** @type {number} */ (this.get(LayerProperty.OPACITY));\n };\n /**\n * @abstract\n * @return {import(\"../source/State.js\").default} Source state.\n */\n BaseLayer.prototype.getSourceState = function () {\n return abstract();\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 BaseLayer.prototype.getVisible = function () {\n return /** @type {boolean} */ (this.get(LayerProperty.VISIBLE));\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 BaseLayer.prototype.getZIndex = function () {\n return /** @type {number} */ (this.get(LayerProperty.Z_INDEX));\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 BaseLayer.prototype.setExtent = function (extent) {\n this.set(LayerProperty.EXTENT, extent);\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 BaseLayer.prototype.setMaxResolution = function (maxResolution) {\n this.set(LayerProperty.MAX_RESOLUTION, maxResolution);\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 BaseLayer.prototype.setMinResolution = function (minResolution) {\n this.set(LayerProperty.MIN_RESOLUTION, minResolution);\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 BaseLayer.prototype.setMaxZoom = function (maxZoom) {\n this.set(LayerProperty.MAX_ZOOM, maxZoom);\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 BaseLayer.prototype.setMinZoom = function (minZoom) {\n this.set(LayerProperty.MIN_ZOOM, minZoom);\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 BaseLayer.prototype.setOpacity = function (opacity) {\n assert(typeof opacity === 'number', 64); // Layer opacity must be a number\n this.set(LayerProperty.OPACITY, opacity);\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 BaseLayer.prototype.setVisible = function (visible) {\n this.set(LayerProperty.VISIBLE, visible);\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 BaseLayer.prototype.setZIndex = function (zindex) {\n this.set(LayerProperty.Z_INDEX, zindex);\n };\n /**\n * @inheritDoc\n */\n BaseLayer.prototype.disposeInternal = function () {\n if (this.state_) {\n this.state_.layer = null;\n this.state_ = null;\n }\n _super.prototype.disposeInternal.call(this);\n };\n return BaseLayer;\n}(BaseObject));\nexport default BaseLayer;\n//# sourceMappingURL=Base.js.map","/**\n * @module ol/source/State\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//# sourceMappingURL=State.js.map","var __extends = (this && this.__extends) || (function () {\n var extendStatics = function (d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n return extendStatics(d, b);\n };\n return function (d, b) {\n extendStatics(d, b);\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n };\n})();\n/**\n * @module ol/layer/Group\n */\nimport { getUid } from '../util.js';\nimport Collection from '../Collection.js';\nimport CollectionEventType from '../CollectionEventType.js';\nimport { getChangeEventType } from '../Object.js';\nimport ObjectEventType from '../ObjectEventType.js';\nimport { assert } from '../asserts.js';\nimport { listen, unlistenByKey } from '../events.js';\nimport EventType from '../events/EventType.js';\nimport { getIntersection } from '../extent.js';\nimport BaseLayer from './Base.js';\nimport { assign, clear } from '../obj.js';\nimport SourceState from '../source/State.js';\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(\"../Collection.js\").default} [layers] Child layers.\n */\n/**\n * @enum {string}\n * @private\n */\nvar Property = {\n LAYERS: 'layers'\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 */\nvar LayerGroup = /** @class */ (function (_super) {\n __extends(LayerGroup, _super);\n /**\n * @param {Options=} opt_options Layer options.\n */\n function LayerGroup(opt_options) {\n var _this = this;\n var options = opt_options || {};\n var baseOptions = /** @type {Options} */ (assign({}, options));\n delete baseOptions.layers;\n var layers = options.layers;\n _this = _super.call(this, baseOptions) || this;\n /**\n * @private\n * @type {Array}\n */\n _this.layersListenerKeys_ = [];\n /**\n * @private\n * @type {Object>}\n */\n _this.listenerKeys_ = {};\n _this.addEventListener(getChangeEventType(Property.LAYERS), _this.handleLayersChanged_);\n if (layers) {\n if (Array.isArray(layers)) {\n layers = new Collection(layers.slice(), { unique: true });\n }\n else {\n assert(typeof /** @type {?} */ (layers).getArray === 'function', 43); // Expected `layers` to be an array or a `Collection`\n }\n }\n else {\n layers = new Collection(undefined, { unique: true });\n }\n _this.setLayers(layers);\n return _this;\n }\n /**\n * @private\n */\n LayerGroup.prototype.handleLayerChange_ = function () {\n this.changed();\n };\n /**\n * @private\n */\n LayerGroup.prototype.handleLayersChanged_ = function () {\n this.layersListenerKeys_.forEach(unlistenByKey);\n this.layersListenerKeys_.length = 0;\n var layers = this.getLayers();\n this.layersListenerKeys_.push(listen(layers, CollectionEventType.ADD, this.handleLayersAdd_, this), listen(layers, CollectionEventType.REMOVE, this.handleLayersRemove_, this));\n for (var id in this.listenerKeys_) {\n this.listenerKeys_[id].forEach(unlistenByKey);\n }\n clear(this.listenerKeys_);\n var layersArray = layers.getArray();\n for (var i = 0, ii = layersArray.length; i < ii; i++) {\n var layer = layersArray[i];\n this.listenerKeys_[getUid(layer)] = [\n listen(layer, ObjectEventType.PROPERTYCHANGE, this.handleLayerChange_, this),\n listen(layer, EventType.CHANGE, this.handleLayerChange_, this)\n ];\n }\n this.changed();\n };\n /**\n * @param {import(\"../Collection.js\").CollectionEvent} collectionEvent CollectionEvent.\n * @private\n */\n LayerGroup.prototype.handleLayersAdd_ = function (collectionEvent) {\n var layer = /** @type {import(\"./Base.js\").default} */ (collectionEvent.element);\n this.listenerKeys_[getUid(layer)] = [\n listen(layer, ObjectEventType.PROPERTYCHANGE, this.handleLayerChange_, this),\n listen(layer, EventType.CHANGE, this.handleLayerChange_, this)\n ];\n this.changed();\n };\n /**\n * @param {import(\"../Collection.js\").CollectionEvent} collectionEvent CollectionEvent.\n * @private\n */\n LayerGroup.prototype.handleLayersRemove_ = function (collectionEvent) {\n var layer = /** @type {import(\"./Base.js\").default} */ (collectionEvent.element);\n var key = getUid(layer);\n this.listenerKeys_[key].forEach(unlistenByKey);\n delete this.listenerKeys_[key];\n this.changed();\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} Collection of\n * {@link module:ol/layer/Base layers} that are part of this group.\n * @observable\n * @api\n */\n LayerGroup.prototype.getLayers = function () {\n return (\n /** @type {!import(\"../Collection.js\").default} */ (this.get(Property.LAYERS)));\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} layers Collection of\n * {@link module:ol/layer/Base layers} that are part of this group.\n * @observable\n * @api\n */\n LayerGroup.prototype.setLayers = function (layers) {\n this.set(Property.LAYERS, layers);\n };\n /**\n * @inheritDoc\n */\n LayerGroup.prototype.getLayersArray = function (opt_array) {\n var array = opt_array !== undefined ? opt_array : [];\n this.getLayers().forEach(function (layer) {\n layer.getLayersArray(array);\n });\n return array;\n };\n /**\n * @inheritDoc\n */\n LayerGroup.prototype.getLayerStatesArray = function (opt_states) {\n var states = opt_states !== undefined ? opt_states : [];\n var pos = states.length;\n this.getLayers().forEach(function (layer) {\n layer.getLayerStatesArray(states);\n });\n var ownLayerState = this.getLayerState();\n for (var i = pos, ii = states.length; i < ii; i++) {\n var layerState = states[i];\n layerState.opacity *= ownLayerState.opacity;\n layerState.visible = layerState.visible && ownLayerState.visible;\n layerState.maxResolution = Math.min(layerState.maxResolution, ownLayerState.maxResolution);\n layerState.minResolution = Math.max(layerState.minResolution, ownLayerState.minResolution);\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(layerState.extent, ownLayerState.extent);\n }\n else {\n layerState.extent = ownLayerState.extent;\n }\n }\n }\n return states;\n };\n /**\n * @inheritDoc\n */\n LayerGroup.prototype.getSourceState = function () {\n return SourceState.READY;\n };\n return LayerGroup;\n}(BaseLayer));\nexport default LayerGroup;\n//# sourceMappingURL=Group.js.map","/**\n * @module ol/size\n */\n/**\n * An array of numbers representing a size: `[width, height]`.\n * @typedef {Array} Size\n * @api\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 * 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 * 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 * 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 }\n else {\n if (opt_size === undefined) {\n opt_size = [size, size];\n }\n else {\n opt_size[0] = size;\n opt_size[1] = size;\n }\n return opt_size;\n }\n}\n//# sourceMappingURL=size.js.map","var __extends = (this && this.__extends) || (function () {\n var extendStatics = function (d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n return extendStatics(d, b);\n };\n return function (d, b) {\n extendStatics(d, b);\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n };\n})();\n/**\n * @module ol/PluggableMap\n */\nimport Collection from './Collection.js';\nimport CollectionEventType from './CollectionEventType.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 RenderEventType from './render/EventType.js';\nimport BaseObject, { getChangeEventType } from './Object.js';\nimport ObjectEventType from './ObjectEventType.js';\nimport TileQueue, { getTilePriority } from './TileQueue.js';\nimport View from './View.js';\nimport ViewHint from './ViewHint.js';\nimport { assert } from './asserts.js';\nimport { removeNode } from './dom.js';\nimport { listen, unlistenByKey } from './events.js';\nimport EventType from './events/EventType.js';\nimport { clone, createOrUpdateEmpty, equals, getForViewAndSize, isEmpty } from './extent.js';\nimport { TRUE } from './functions.js';\nimport { DEVICE_PIXEL_RATIO, IMAGE_DECODE, PASSIVE_EVENT_LISTENERS } from './has.js';\nimport LayerGroup from './layer/Group.js';\nimport { hasArea } from './size.js';\nimport { create as createTransform, apply as applyTransform } from './transform.js';\nimport { toUserCoordinate, fromUserCoordinate } from './proj.js';\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\n * @property {number} index\n * @property {Array} layerStatesArray\n * @property {number} layerIndex\n * @property {import(\"./transform.js\").Transform} pixelToCoordinateTransform\n * @property {Array} postRenderFunctions\n * @property {import(\"./size.js\").Size} size\n * @property {TileQueue} tileQueue\n * @property {!Object>} usedTiles\n * @property {Array} viewHints\n * @property {!Object>} wantedTiles\n */\n/**\n * @typedef {Object} DeclutterItems\n * @property {Array<*>} items Declutter items of an executor.\n * @property {number} opacity Layer opacity.\n */\n/**\n * @typedef {function(PluggableMap, ?FrameState): any} PostRenderFunction\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 * @typedef {Object} MapOptionsInternal\n * @property {Collection} [controls]\n * @property {Collection} [interactions]\n * @property {HTMLElement|Document} keyboardEventTarget\n * @property {Collection} overlays\n * @property {Object} values\n */\n/**\n * Object literal with config options for the map.\n * @typedef {Object} MapOptions\n * @property {Collection|Array} [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|Array} [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|Collection|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|Array} [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 * @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 */\nvar PluggableMap = /** @class */ (function (_super) {\n __extends(PluggableMap, _super);\n /**\n * @param {MapOptions} options Map options.\n */\n function PluggableMap(options) {\n var _this = _super.call(this) || this;\n var optionsInternal = createOptionsInternal(options);\n /** @private */\n _this.boundHandleBrowserEvent_ = _this.handleBrowserEvent.bind(_this);\n /**\n * @type {number}\n * @private\n */\n _this.maxTilesLoading_ = options.maxTilesLoading !== undefined ? options.maxTilesLoading : 16;\n /**\n * @private\n * @type {number}\n */\n _this.pixelRatio_ = options.pixelRatio !== undefined ?\n options.pixelRatio : DEVICE_PIXEL_RATIO;\n /**\n * @private\n * @type {*}\n */\n _this.postRenderTimeoutHandle_;\n /**\n * @private\n * @type {number|undefined}\n */\n _this.animationDelayKey_;\n /**\n * @private\n */\n _this.animationDelay_ = function () {\n this.animationDelayKey_ = undefined;\n this.renderFrame_(Date.now());\n }.bind(_this);\n /**\n * @private\n * @type {import(\"./transform.js\").Transform}\n */\n _this.coordinateToPixelTransform_ = createTransform();\n /**\n * @private\n * @type {import(\"./transform.js\").Transform}\n */\n _this.pixelToCoordinateTransform_ = createTransform();\n /**\n * @private\n * @type {number}\n */\n _this.frameIndex_ = 0;\n /**\n * @private\n * @type {?FrameState}\n */\n _this.frameState_ = null;\n /**\n * The extent at the previous 'moveend' event.\n * @private\n * @type {import(\"./extent.js\").Extent}\n */\n _this.previousExtent_ = null;\n /**\n * @private\n * @type {?import(\"./events.js\").EventsKey}\n */\n _this.viewPropertyListenerKey_ = null;\n /**\n * @private\n * @type {?import(\"./events.js\").EventsKey}\n */\n _this.viewChangeListenerKey_ = null;\n /**\n * @private\n * @type {?Array}\n */\n _this.layerGroupPropertyListenerKeys_ = null;\n /**\n * @private\n * @type {!HTMLElement}\n */\n _this.viewport_ = document.createElement('div');\n _this.viewport_.className = '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 * @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_.className = 'ol-overlaycontainer';\n _this.viewport_.appendChild(_this.overlayContainer_);\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_.className = 'ol-overlaycontainer-stopevent';\n _this.viewport_.appendChild(_this.overlayContainerStopEvent_);\n /**\n * @private\n * @type {MapBrowserEventHandler}\n */\n _this.mapBrowserEventHandler_ = new MapBrowserEventHandler(_this, options.moveTolerance);\n var handleMapBrowserEvent = _this.handleMapBrowserEvent.bind(_this);\n for (var key in MapBrowserEventType) {\n _this.mapBrowserEventHandler_.addEventListener(MapBrowserEventType[key], handleMapBrowserEvent);\n }\n /**\n * @private\n * @type {HTMLElement|Document}\n */\n _this.keyboardEventTarget_ = optionsInternal.keyboardEventTarget;\n /**\n * @private\n * @type {?Array}\n */\n _this.keyHandlerKeys_ = null;\n var handleBrowserEvent = _this.handleBrowserEvent.bind(_this);\n _this.viewport_.addEventListener(EventType.CONTEXTMENU, handleBrowserEvent, false);\n _this.viewport_.addEventListener(EventType.WHEEL, handleBrowserEvent, PASSIVE_EVENT_LISTENERS ? { passive: false } : false);\n /**\n * @type {Collection}\n * @protected\n */\n _this.controls = optionsInternal.controls || new Collection();\n /**\n * @type {Collection}\n * @protected\n */\n _this.interactions = optionsInternal.interactions || new Collection();\n /**\n * @type {Collection}\n * @private\n */\n _this.overlays_ = optionsInternal.overlays;\n /**\n * A lookup of overlays by id.\n * @private\n * @type {Object}\n */\n _this.overlayIdIndex_ = {};\n /**\n * @type {import(\"./renderer/Map.js\").default}\n * @private\n */\n _this.renderer_ = null;\n /**\n * @type {undefined|function(Event): void}\n * @private\n */\n _this.handleResize_;\n /**\n * @private\n * @type {!Array}\n */\n _this.postRenderFunctions_ = [];\n /**\n * @private\n * @type {TileQueue}\n */\n _this.tileQueue_ = new TileQueue(_this.getTilePriority.bind(_this), _this.handleTileChange_.bind(_this));\n _this.addEventListener(getChangeEventType(MapProperty.LAYERGROUP), _this.handleLayerGroupChanged_);\n _this.addEventListener(getChangeEventType(MapProperty.VIEW), _this.handleViewChanged_);\n _this.addEventListener(getChangeEventType(MapProperty.SIZE), _this.handleSizeChanged_);\n _this.addEventListener(getChangeEventType(MapProperty.TARGET), _this.handleTargetChanged_);\n // setProperties will trigger the rendering of the map if the map\n // is \"defined\" already.\n _this.setProperties(optionsInternal.values);\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 _this.controls.addEventListener(CollectionEventType.ADD, \n /**\n * @param {import(\"./Collection.js\").CollectionEvent} event CollectionEvent.\n */\n function (event) {\n event.element.setMap(this);\n }.bind(_this));\n _this.controls.addEventListener(CollectionEventType.REMOVE, \n /**\n * @param {import(\"./Collection.js\").CollectionEvent} event CollectionEvent.\n */\n function (event) {\n event.element.setMap(null);\n }.bind(_this));\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 _this.interactions.addEventListener(CollectionEventType.ADD, \n /**\n * @param {import(\"./Collection.js\").CollectionEvent} event CollectionEvent.\n */\n function (event) {\n event.element.setMap(this);\n }.bind(_this));\n _this.interactions.addEventListener(CollectionEventType.REMOVE, \n /**\n * @param {import(\"./Collection.js\").CollectionEvent} event CollectionEvent.\n */\n function (event) {\n event.element.setMap(null);\n }.bind(_this));\n _this.overlays_.forEach(_this.addOverlayInternal_.bind(_this));\n _this.overlays_.addEventListener(CollectionEventType.ADD, \n /**\n * @param {import(\"./Collection.js\").CollectionEvent} event CollectionEvent.\n */\n function (event) {\n this.addOverlayInternal_(/** @type {import(\"./Overlay.js\").default} */ (event.element));\n }.bind(_this));\n _this.overlays_.addEventListener(CollectionEventType.REMOVE, \n /**\n * @param {import(\"./Collection.js\").CollectionEvent} event CollectionEvent.\n */\n function (event) {\n var overlay = /** @type {import(\"./Overlay.js\").default} */ (event.element);\n var id = overlay.getId();\n if (id !== undefined) {\n delete this.overlayIdIndex_[id.toString()];\n }\n event.element.setMap(null);\n }.bind(_this));\n return _this;\n }\n /**\n * @abstract\n * @return {import(\"./renderer/Map.js\").default} The map renderer\n */\n PluggableMap.prototype.createRenderer = function () {\n throw new Error('Use a map type that has a createRenderer method');\n };\n /**\n * Add the given control to the map.\n * @param {import(\"./control/Control.js\").default} control Control.\n * @api\n */\n PluggableMap.prototype.addControl = function (control) {\n this.getControls().push(control);\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 PluggableMap.prototype.addInteraction = function (interaction) {\n this.getInteractions().push(interaction);\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 PluggableMap.prototype.addLayer = function (layer) {\n var layers = this.getLayerGroup().getLayers();\n layers.push(layer);\n };\n /**\n * Add the given overlay to the map.\n * @param {import(\"./Overlay.js\").default} overlay Overlay.\n * @api\n */\n PluggableMap.prototype.addOverlay = function (overlay) {\n this.getOverlays().push(overlay);\n };\n /**\n * This deals with map's overlay collection changes.\n * @param {import(\"./Overlay.js\").default} overlay Overlay.\n * @private\n */\n PluggableMap.prototype.addOverlayInternal_ = function (overlay) {\n var id = overlay.getId();\n if (id !== undefined) {\n this.overlayIdIndex_[id.toString()] = overlay;\n }\n overlay.setMap(this);\n };\n /**\n *\n * @inheritDoc\n */\n PluggableMap.prototype.disposeInternal = function () {\n this.mapBrowserEventHandler_.dispose();\n this.viewport_.removeEventListener(EventType.CONTEXTMENU, this.boundHandleBrowserEvent_);\n this.viewport_.removeEventListener(EventType.WHEEL, this.boundHandleBrowserEvent_);\n if (this.handleResize_ !== undefined) {\n removeEventListener(EventType.RESIZE, this.handleResize_, false);\n this.handleResize_ = undefined;\n }\n this.setTarget(null);\n _super.prototype.disposeInternal.call(this);\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 PluggableMap.prototype.forEachFeatureAtPixel = function (pixel, callback, opt_options) {\n if (!this.frameState_) {\n return;\n }\n var coordinate = this.getCoordinateFromPixelInternal(pixel);\n opt_options = opt_options !== undefined ? opt_options : {};\n var hitTolerance = opt_options.hitTolerance !== undefined ?\n opt_options.hitTolerance * this.frameState_.pixelRatio : 0;\n var layerFilter = opt_options.layerFilter !== undefined ?\n opt_options.layerFilter : TRUE;\n var checkWrapped = opt_options.checkWrapped !== false;\n return this.renderer_.forEachFeatureAtCoordinate(coordinate, this.frameState_, hitTolerance, checkWrapped, callback, null, layerFilter, null);\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} The detected features or\n * an empty array if none were found.\n * @api\n */\n PluggableMap.prototype.getFeaturesAtPixel = function (pixel, opt_options) {\n var features = [];\n this.forEachFeatureAtPixel(pixel, function (feature) {\n features.push(feature);\n }, opt_options);\n return features;\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 PluggableMap.prototype.forEachLayerAtPixel = function (pixel, callback, opt_options) {\n if (!this.frameState_) {\n return;\n }\n var options = opt_options || {};\n var hitTolerance = options.hitTolerance !== undefined ?\n options.hitTolerance * this.frameState_.pixelRatio : 0;\n var layerFilter = options.layerFilter || TRUE;\n return this.renderer_.forEachLayerAtPixel(pixel, this.frameState_, hitTolerance, callback, layerFilter);\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 PluggableMap.prototype.hasFeatureAtPixel = function (pixel, opt_options) {\n if (!this.frameState_) {\n return false;\n }\n var coordinate = this.getCoordinateFromPixelInternal(pixel);\n opt_options = opt_options !== undefined ? opt_options : {};\n var layerFilter = opt_options.layerFilter !== undefined ? opt_options.layerFilter : TRUE;\n var hitTolerance = opt_options.hitTolerance !== undefined ?\n opt_options.hitTolerance * this.frameState_.pixelRatio : 0;\n var checkWrapped = opt_options.checkWrapped !== false;\n return this.renderer_.hasFeatureAtCoordinate(coordinate, this.frameState_, hitTolerance, checkWrapped, layerFilter, null);\n };\n /**\n * Returns the coordinate in user projection for a browser event.\n * @param {Event} event Event.\n * @return {import(\"./coordinate.js\").Coordinate} Coordinate.\n * @api\n */\n PluggableMap.prototype.getEventCoordinate = function (event) {\n return this.getCoordinateFromPixel(this.getEventPixel(event));\n };\n /**\n * Returns the coordinate in view projection for a browser event.\n * @param {Event} event Event.\n * @return {import(\"./coordinate.js\").Coordinate} Coordinate.\n */\n PluggableMap.prototype.getEventCoordinateInternal = function (event) {\n return this.getCoordinateFromPixelInternal(this.getEventPixel(event));\n };\n /**\n * Returns the map pixel position for a browser event relative to the viewport.\n * @param {Event|TouchEvent} event Event.\n * @return {import(\"./pixel.js\").Pixel} Pixel.\n * @api\n */\n PluggableMap.prototype.getEventPixel = function (event) {\n var viewportPosition = this.viewport_.getBoundingClientRect();\n var eventPosition = 'changedTouches' in event ?\n /** @type {TouchEvent} */ (event).changedTouches[0] :\n /** @type {MouseEvent} */ (event);\n return [\n eventPosition.clientX - viewportPosition.left,\n eventPosition.clientY - viewportPosition.top\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 PluggableMap.prototype.getTarget = function () {\n return /** @type {HTMLElement|string|undefined} */ (this.get(MapProperty.TARGET));\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 PluggableMap.prototype.getTargetElement = function () {\n var target = this.getTarget();\n if (target !== undefined) {\n return typeof target === 'string' ? document.getElementById(target) : target;\n }\n else {\n return null;\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 PluggableMap.prototype.getCoordinateFromPixel = function (pixel) {\n return toUserCoordinate(this.getCoordinateFromPixelInternal(pixel), this.getView().getProjection());\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 PluggableMap.prototype.getCoordinateFromPixelInternal = function (pixel) {\n var frameState = this.frameState_;\n if (!frameState) {\n return null;\n }\n else {\n return applyTransform(frameState.pixelToCoordinateTransform, pixel.slice());\n }\n };\n /**\n * Get the map controls. Modifying this collection changes the controls\n * associated with the map.\n * @return {Collection} Controls.\n * @api\n */\n PluggableMap.prototype.getControls = function () {\n return this.controls;\n };\n /**\n * Get the map overlays. Modifying this collection changes the overlays\n * associated with the map.\n * @return {Collection} Overlays.\n * @api\n */\n PluggableMap.prototype.getOverlays = function () {\n return this.overlays_;\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 PluggableMap.prototype.getOverlayById = function (id) {\n var overlay = this.overlayIdIndex_[id.toString()];\n return overlay !== undefined ? overlay : null;\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} Interactions.\n * @api\n */\n PluggableMap.prototype.getInteractions = function () {\n return this.interactions;\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 PluggableMap.prototype.getLayerGroup = function () {\n return (\n /** @type {LayerGroup} */ (this.get(MapProperty.LAYERGROUP)));\n };\n /**\n * Get the collection of layers associated with this map.\n * @return {!Collection} Layers.\n * @api\n */\n PluggableMap.prototype.getLayers = function () {\n var layers = this.getLayerGroup().getLayers();\n return layers;\n };\n /**\n * @return {boolean} Layers have sources that are still loading.\n */\n PluggableMap.prototype.getLoading = function () {\n var layerStatesArray = this.getLayerGroup().getLayerStatesArray();\n for (var i = 0, ii = layerStatesArray.length; i < ii; ++i) {\n var layer = layerStatesArray[i].layer;\n var 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 * 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 PluggableMap.prototype.getPixelFromCoordinate = function (coordinate) {\n var viewCoordinate = fromUserCoordinate(coordinate, this.getView().getProjection());\n return this.getPixelFromCoordinateInternal(viewCoordinate);\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 PluggableMap.prototype.getPixelFromCoordinateInternal = function (coordinate) {\n var frameState = this.frameState_;\n if (!frameState) {\n return null;\n }\n else {\n return applyTransform(frameState.coordinateToPixelTransform, coordinate.slice(0, 2));\n }\n };\n /**\n * Get the map renderer.\n * @return {import(\"./renderer/Map.js\").default} Renderer\n */\n PluggableMap.prototype.getRenderer = function () {\n return this.renderer_;\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 PluggableMap.prototype.getSize = function () {\n return (\n /** @type {import(\"./size.js\").Size|undefined} */ (this.get(MapProperty.SIZE)));\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 PluggableMap.prototype.getView = function () {\n return (\n /** @type {View} */ (this.get(MapProperty.VIEW)));\n };\n /**\n * Get the element that serves as the map viewport.\n * @return {HTMLElement} Viewport.\n * @api\n */\n PluggableMap.prototype.getViewport = function () {\n return this.viewport_;\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 PluggableMap.prototype.getOverlayContainer = function () {\n return this.overlayContainer_;\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 PluggableMap.prototype.getOverlayContainerStopEvent = function () {\n return this.overlayContainerStopEvent_;\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 PluggableMap.prototype.getTilePriority = function (tile, tileSourceKey, tileCenter, tileResolution) {\n return getTilePriority(this.frameState_, tile, tileSourceKey, tileCenter, tileResolution);\n };\n /**\n * @param {Event} browserEvent Browser event.\n * @param {string=} opt_type Type.\n */\n PluggableMap.prototype.handleBrowserEvent = function (browserEvent, opt_type) {\n var type = opt_type || browserEvent.type;\n var mapBrowserEvent = new MapBrowserEvent(type, this, browserEvent);\n this.handleMapBrowserEvent(mapBrowserEvent);\n };\n /**\n * @param {MapBrowserEvent} mapBrowserEvent The event to handle.\n */\n PluggableMap.prototype.handleMapBrowserEvent = function (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 var target = /** @type {Node} */ (mapBrowserEvent.originalEvent.target);\n if (!mapBrowserEvent.dragging) {\n if (this.overlayContainerStopEvent_.contains(target) || !(document.body.contains(target) || this.viewport_.getRootNode && this.viewport_.getRootNode().contains(target))) {\n // Abort if the event target is a child of the container that doesn't allow\n // event propagation or is no longer in the page. It's possible for the target to no longer\n // be in the page if it has been removed in an event listener, this might happen in a Control\n // that recreates it's content based on user interaction either manually or via a render\n // in something like https://reactjs.org/\n return;\n }\n }\n mapBrowserEvent.frameState = this.frameState_;\n var interactionsArray = this.getInteractions().getArray();\n if (this.dispatchEvent(mapBrowserEvent) !== false) {\n for (var i = interactionsArray.length - 1; i >= 0; i--) {\n var interaction = interactionsArray[i];\n if (!interaction.getActive()) {\n continue;\n }\n var cont = interaction.handleEvent(mapBrowserEvent);\n if (!cont) {\n break;\n }\n }\n }\n };\n /**\n * @protected\n */\n PluggableMap.prototype.handlePostRender = function () {\n var frameState = this.frameState_;\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 var tileQueue = this.tileQueue_;\n if (!tileQueue.isEmpty()) {\n var maxTotalLoading = this.maxTilesLoading_;\n var maxNewLoads = maxTotalLoading;\n if (frameState) {\n var hints = frameState.viewHints;\n if (hints[ViewHint.ANIMATING] || hints[ViewHint.INTERACTING]) {\n var lowOnFrameBudget = !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 if (frameState && this.hasListener(RenderEventType.RENDERCOMPLETE) && !frameState.animate &&\n !this.tileQueue_.getTilesLoading() && !this.getLoading()) {\n this.renderer_.dispatchRenderEvent(RenderEventType.RENDERCOMPLETE, frameState);\n }\n var postRenderFunctions = this.postRenderFunctions_;\n for (var i = 0, ii = postRenderFunctions.length; i < ii; ++i) {\n postRenderFunctions[i](this, frameState);\n }\n postRenderFunctions.length = 0;\n };\n /**\n * @private\n */\n PluggableMap.prototype.handleSizeChanged_ = function () {\n if (this.getView()) {\n this.getView().resolveConstraints(0);\n }\n this.render();\n };\n /**\n * @private\n */\n PluggableMap.prototype.handleTargetChanged_ = function () {\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 var targetElement;\n if (this.getTarget()) {\n targetElement = this.getTargetElement();\n }\n if (this.keyHandlerKeys_) {\n for (var i = 0, ii = this.keyHandlerKeys_.length; i < ii; ++i) {\n unlistenByKey(this.keyHandlerKeys_[i]);\n }\n this.keyHandlerKeys_ = null;\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 removeNode(this.viewport_);\n if (this.handleResize_ !== undefined) {\n removeEventListener(EventType.RESIZE, this.handleResize_, false);\n this.handleResize_ = undefined;\n }\n }\n else {\n targetElement.appendChild(this.viewport_);\n if (!this.renderer_) {\n this.renderer_ = this.createRenderer();\n }\n var keyboardEventTarget = !this.keyboardEventTarget_ ?\n targetElement : this.keyboardEventTarget_;\n this.keyHandlerKeys_ = [\n listen(keyboardEventTarget, EventType.KEYDOWN, this.handleBrowserEvent, this),\n listen(keyboardEventTarget, EventType.KEYPRESS, this.handleBrowserEvent, this)\n ];\n if (!this.handleResize_) {\n this.handleResize_ = this.updateSize.bind(this);\n window.addEventListener(EventType.RESIZE, this.handleResize_, false);\n }\n }\n this.updateSize();\n // updateSize calls setSize, so no need to call this.render\n // ourselves here.\n };\n /**\n * @private\n */\n PluggableMap.prototype.handleTileChange_ = function () {\n this.render();\n };\n /**\n * @private\n */\n PluggableMap.prototype.handleViewPropertyChanged_ = function () {\n this.render();\n };\n /**\n * @private\n */\n PluggableMap.prototype.handleViewChanged_ = function () {\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 var view = this.getView();\n if (view) {\n this.updateViewportSize_();\n this.viewPropertyListenerKey_ = listen(view, ObjectEventType.PROPERTYCHANGE, this.handleViewPropertyChanged_, this);\n this.viewChangeListenerKey_ = listen(view, EventType.CHANGE, this.handleViewPropertyChanged_, this);\n view.resolveConstraints(0);\n }\n this.render();\n };\n /**\n * @private\n */\n PluggableMap.prototype.handleLayerGroupChanged_ = function () {\n if (this.layerGroupPropertyListenerKeys_) {\n this.layerGroupPropertyListenerKeys_.forEach(unlistenByKey);\n this.layerGroupPropertyListenerKeys_ = null;\n }\n var 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 * @return {boolean} Is rendered.\n */\n PluggableMap.prototype.isRendered = function () {\n return !!this.frameState_;\n };\n /**\n * Requests an immediate render in a synchronous manner.\n * @api\n */\n PluggableMap.prototype.renderSync = function () {\n if (this.animationDelayKey_) {\n cancelAnimationFrame(this.animationDelayKey_);\n }\n this.animationDelay_();\n };\n /**\n * Redraws all text after new fonts have loaded\n */\n PluggableMap.prototype.redrawText = function () {\n var layerStates = this.getLayerGroup().getLayerStatesArray();\n for (var i = 0, ii = layerStates.length; i < ii; ++i) {\n var layer = layerStates[i].layer;\n if (layer.hasRenderer()) {\n layer.getRenderer().handleFontsChanged();\n }\n }\n };\n /**\n * Request a map rendering (at the next animation frame).\n * @api\n */\n PluggableMap.prototype.render = function () {\n if (this.renderer_ && this.animationDelayKey_ === undefined) {\n this.animationDelayKey_ = requestAnimationFrame(this.animationDelay_);\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 PluggableMap.prototype.removeControl = function (control) {\n return this.getControls().remove(control);\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 PluggableMap.prototype.removeInteraction = function (interaction) {\n return this.getInteractions().remove(interaction);\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 PluggableMap.prototype.removeLayer = function (layer) {\n var layers = this.getLayerGroup().getLayers();\n return layers.remove(layer);\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 PluggableMap.prototype.removeOverlay = function (overlay) {\n return this.getOverlays().remove(overlay);\n };\n /**\n * @param {number} time Time.\n * @private\n */\n PluggableMap.prototype.renderFrame_ = function (time) {\n var size = this.getSize();\n var view = this.getView();\n var previousFrameState = this.frameState_;\n /** @type {?FrameState} */\n var frameState = null;\n if (size !== undefined && hasArea(size) && view && view.isDef()) {\n var viewHints = view.getHints(this.frameState_ ? this.frameState_.viewHints : undefined);\n var viewState = view.getState();\n frameState = {\n animate: false,\n coordinateToPixelTransform: this.coordinateToPixelTransform_,\n declutterItems: previousFrameState ? previousFrameState.declutterItems : [],\n extent: getForViewAndSize(viewState.center, viewState.resolution, viewState.rotation, size),\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 this.frameState_ = frameState;\n this.renderer_.renderFrame(frameState);\n if (frameState) {\n if (frameState.animate) {\n this.render();\n }\n Array.prototype.push.apply(this.postRenderFunctions_, frameState.postRenderFunctions);\n if (previousFrameState) {\n var moveStart = !this.previousExtent_ ||\n (!isEmpty(this.previousExtent_) &&\n !equals(frameState.extent, this.previousExtent_));\n if (moveStart) {\n this.dispatchEvent(new MapEvent(MapEventType.MOVESTART, this, previousFrameState));\n this.previousExtent_ = createOrUpdateEmpty(this.previousExtent_);\n }\n }\n var idle = this.previousExtent_ &&\n !frameState.viewHints[ViewHint.ANIMATING] &&\n !frameState.viewHints[ViewHint.INTERACTING] &&\n !equals(frameState.extent, this.previousExtent_);\n if (idle) {\n this.dispatchEvent(new MapEvent(MapEventType.MOVEEND, this, frameState));\n clone(frameState.extent, this.previousExtent_);\n }\n }\n this.dispatchEvent(new MapEvent(MapEventType.POSTRENDER, this, frameState));\n this.postRenderTimeoutHandle_ = setTimeout(this.handlePostRender.bind(this), 0);\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 PluggableMap.prototype.setLayerGroup = function (layerGroup) {\n this.set(MapProperty.LAYERGROUP, layerGroup);\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 PluggableMap.prototype.setSize = function (size) {\n this.set(MapProperty.SIZE, size);\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 PluggableMap.prototype.setTarget = function (target) {\n this.set(MapProperty.TARGET, target);\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 PluggableMap.prototype.setView = function (view) {\n this.set(MapProperty.VIEW, view);\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 PluggableMap.prototype.updateSize = function () {\n var targetElement = this.getTargetElement();\n if (!targetElement) {\n this.setSize(undefined);\n }\n else {\n var 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 this.updateViewportSize_();\n };\n /**\n * Recomputes the viewport size and save it on the view object (if any)\n * @private\n */\n PluggableMap.prototype.updateViewportSize_ = function () {\n var view = this.getView();\n if (view) {\n var size = undefined;\n var 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 return PluggableMap;\n}(BaseObject));\n/**\n * @param {MapOptions} options Map options.\n * @return {MapOptionsInternal} Internal map options.\n */\nfunction createOptionsInternal(options) {\n /**\n * @type {HTMLElement|Document}\n */\n var keyboardEventTarget = null;\n if (options.keyboardEventTarget !== undefined) {\n keyboardEventTarget = typeof options.keyboardEventTarget === 'string' ?\n document.getElementById(options.keyboardEventTarget) :\n options.keyboardEventTarget;\n }\n /**\n * @type {Object}\n */\n var values = {};\n var layerGroup = options.layers && typeof /** @type {?} */ (options.layers).getLayers === 'function' ?\n /** @type {LayerGroup} */ (options.layers) : new LayerGroup({ layers: /** @type {Collection} */ (options.layers) });\n values[MapProperty.LAYERGROUP] = layerGroup;\n values[MapProperty.TARGET] = options.target;\n values[MapProperty.VIEW] = options.view !== undefined ?\n options.view : new View();\n var controls;\n if (options.controls !== undefined) {\n if (Array.isArray(options.controls)) {\n controls = new Collection(options.controls.slice());\n }\n else {\n assert(typeof /** @type {?} */ (options.controls).getArray === 'function', 47); // Expected `controls` to be an array or an `import(\"./Collection.js\").Collection`\n controls = /** @type {Collection} */ (options.controls);\n }\n }\n var interactions;\n if (options.interactions !== undefined) {\n if (Array.isArray(options.interactions)) {\n interactions = new Collection(options.interactions.slice());\n }\n else {\n assert(typeof /** @type {?} */ (options.interactions).getArray === 'function', 48); // Expected `interactions` to be an array or an `import(\"./Collection.js\").Collection`\n interactions = /** @type {Collection} */ (options.interactions);\n }\n }\n var overlays;\n if (options.overlays !== undefined) {\n if (Array.isArray(options.overlays)) {\n overlays = new Collection(options.overlays.slice());\n }\n else {\n assert(typeof /** @type {?} */ (options.overlays).getArray === 'function', 49); // Expected `overlays` to be an array or an `import(\"./Collection.js\").Collection`\n overlays = options.overlays;\n }\n }\n else {\n overlays = new Collection();\n }\n return {\n controls: controls,\n interactions: interactions,\n keyboardEventTarget: keyboardEventTarget,\n overlays: overlays,\n values: values\n };\n}\nexport default PluggableMap;\n//# sourceMappingURL=PluggableMap.js.map","var __extends = (this && this.__extends) || (function () {\n var extendStatics = function (d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n return extendStatics(d, b);\n };\n return function (d, b) {\n extendStatics(d, b);\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n };\n})();\n/**\n * @module ol/control/Control\n */\nimport { VOID } from '../functions.js';\nimport MapEventType from '../MapEventType.js';\nimport BaseObject from '../Object.js';\nimport { removeNode } from '../dom.js';\nimport { listen, unlistenByKey } from '../events.js';\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)} [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 * @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 */\nvar Control = /** @class */ (function (_super) {\n __extends(Control, _super);\n /**\n * @param {Options} options Control options.\n */\n function Control(options) {\n var _this = _super.call(this) || this;\n /**\n * @protected\n * @type {HTMLElement}\n */\n _this.element = options.element ? options.element : null;\n /**\n * @private\n * @type {HTMLElement}\n */\n _this.target_ = null;\n /**\n * @private\n * @type {import(\"../PluggableMap.js\").default}\n */\n _this.map_ = null;\n /**\n * @protected\n * @type {!Array}\n */\n _this.listenerKeys = [];\n /**\n * @private\n * @type {function(import(\"../MapEvent.js\").default): void}\n */\n _this.render_ = options.render ? options.render : VOID;\n if (options.target) {\n _this.setTarget(options.target);\n }\n return _this;\n }\n /**\n * @inheritDoc\n */\n Control.prototype.disposeInternal = function () {\n removeNode(this.element);\n _super.prototype.disposeInternal.call(this);\n };\n /**\n * Get the map associated with this control.\n * @return {import(\"../PluggableMap.js\").default} Map.\n * @api\n */\n Control.prototype.getMap = function () {\n return this.map_;\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 Control.prototype.setMap = function (map) {\n if (this.map_) {\n removeNode(this.element);\n }\n for (var 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 var target = this.target_ ?\n this.target_ : map.getOverlayContainerStopEvent();\n target.appendChild(this.element);\n if (this.render !== VOID) {\n this.listenerKeys.push(listen(map, MapEventType.POSTRENDER, this.render, this));\n }\n map.render();\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 * @api\n */\n Control.prototype.render = function (mapEvent) {\n this.render_.call(this, 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 Control.prototype.setTarget = function (target) {\n this.target_ = typeof target === 'string' ?\n document.getElementById(target) :\n target;\n };\n return Control;\n}(BaseObject));\nexport default Control;\n//# sourceMappingURL=Control.js.map","/**\n * @module ol/css\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} families\n */\n/**\n * The CSS class for hidden feature.\n *\n * @const\n * @type {string}\n */\nexport var CLASS_HIDDEN = 'ol-hidden';\n/**\n * The CSS class that we'll give the DOM elements to have them selectable.\n *\n * @const\n * @type {string}\n */\nexport var CLASS_SELECTABLE = 'ol-selectable';\n/**\n * The CSS class that we'll give the DOM elements to have them unselectable.\n *\n * @const\n * @type {string}\n */\nexport var CLASS_UNSELECTABLE = 'ol-unselectable';\n/**\n * The CSS class for unsupported feature.\n *\n * @const\n * @type {string}\n */\nexport var CLASS_UNSUPPORTED = 'ol-unsupported';\n/**\n * The CSS class for controls.\n *\n * @const\n * @type {string}\n */\nexport var CLASS_CONTROL = 'ol-control';\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 var CLASS_COLLAPSED = 'ol-collapsed';\n/**\n * From http://stackoverflow.com/questions/10135697/regex-to-parse-any-css-font\n * @type {RegExp}\n */\nvar fontRegEx = new RegExp([\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(''), 'i');\nvar fontRegExMatchIndex = [\n 'style',\n 'variant',\n 'weight',\n 'size',\n 'lineHeight',\n 'family'\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 var getFontParameters = function (fontSpec) {\n var match = fontSpec.match(fontRegEx);\n if (!match) {\n return null;\n }\n var style = /** @type {FontParameters} */ ({\n lineHeight: 'normal',\n size: '1.2em',\n style: 'normal',\n weight: 'normal',\n variant: 'normal'\n });\n for (var i = 0, ii = fontRegExMatchIndex.length; i < ii; ++i) {\n var 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//# sourceMappingURL=css.js.map","var __extends = (this && this.__extends) || (function () {\n var extendStatics = function (d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n return extendStatics(d, b);\n };\n return function (d, b) {\n extendStatics(d, b);\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n };\n})();\n/**\n * @module ol/layer/Layer\n */\nimport { listen, unlistenByKey } from '../events.js';\nimport EventType from '../events/EventType.js';\nimport { getChangeEventType } from '../Object.js';\nimport BaseLayer from './Base.js';\nimport LayerProperty from './Property.js';\nimport { assign } from '../obj.js';\nimport RenderEventType from '../render/EventType.js';\nimport SourceState from '../source/State.js';\nimport { assert } from '../asserts.js';\n/**\n * @typedef {function(import(\"../PluggableMap.js\").FrameState):HTMLElement} RenderFunction\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 * @typedef {Object} State\n * @property {import(\"./Base.js\").default} layer\n * @property {number} opacity Opacity, the value is rounded to two digits to appear after the decimal point.\n * @property {SourceState} 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 * @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 */\nvar Layer = /** @class */ (function (_super) {\n __extends(Layer, _super);\n /**\n * @param {Options} options Layer options.\n */\n function Layer(options) {\n var _this = this;\n var baseOptions = assign({}, options);\n delete baseOptions.source;\n _this = _super.call(this, baseOptions) || this;\n /**\n * @private\n * @type {?import(\"../events.js\").EventsKey}\n */\n _this.mapPrecomposeKey_ = null;\n /**\n * @private\n * @type {?import(\"../events.js\").EventsKey}\n */\n _this.mapRenderKey_ = null;\n /**\n * @private\n * @type {?import(\"../events.js\").EventsKey}\n */\n _this.sourceChangeKey_ = null;\n /**\n * @private\n * @type {import(\"../renderer/Layer.js\").default}\n */\n _this.renderer_ = null;\n // Overwrite default render method with a custom one\n if (options.render) {\n _this.render = options.render;\n }\n if (options.map) {\n _this.setMap(options.map);\n }\n _this.addEventListener(getChangeEventType(LayerProperty.SOURCE), _this.handleSourcePropertyChange_);\n var source = options.source ? /** @type {SourceType} */ (options.source) : null;\n _this.setSource(source);\n return _this;\n }\n /**\n * @inheritDoc\n */\n Layer.prototype.getLayersArray = function (opt_array) {\n var array = opt_array ? opt_array : [];\n array.push(this);\n return array;\n };\n /**\n * @inheritDoc\n */\n Layer.prototype.getLayerStatesArray = function (opt_states) {\n var states = opt_states ? opt_states : [];\n states.push(this.getLayerState());\n return states;\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 Layer.prototype.getSource = function () {\n return /** @type {SourceType} */ (this.get(LayerProperty.SOURCE)) || null;\n };\n /**\n * @inheritDoc\n */\n Layer.prototype.getSourceState = function () {\n var source = this.getSource();\n return !source ? SourceState.UNDEFINED : source.getState();\n };\n /**\n * @private\n */\n Layer.prototype.handleSourceChange_ = function () {\n this.changed();\n };\n /**\n * @private\n */\n Layer.prototype.handleSourcePropertyChange_ = function () {\n if (this.sourceChangeKey_) {\n unlistenByKey(this.sourceChangeKey_);\n this.sourceChangeKey_ = null;\n }\n var source = this.getSource();\n if (source) {\n this.sourceChangeKey_ = listen(source, EventType.CHANGE, this.handleSourceChange_, this);\n }\n this.changed();\n };\n /**\n * @param {import(\"../pixel\").Pixel} pixel Pixel.\n * @return {Promise>} Promise that resolves with\n * an array of features.\n */\n Layer.prototype.getFeatures = function (pixel) {\n return this.renderer_.getFeatures(pixel);\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 Layer.prototype.render = function (frameState, target) {\n var layerRenderer = this.getRenderer();\n if (layerRenderer.prepareFrame(frameState)) {\n return layerRenderer.renderFrame(frameState, target);\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 Layer.prototype.setMap = function (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(map, RenderEventType.PRECOMPOSE, function (evt) {\n var renderEvent = /** @type {import(\"../render/Event.js\").default} */ (evt);\n var layerStatesArray = renderEvent.frameState.layerStatesArray;\n var 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(!layerStatesArray.some(function (arrayLayerState) {\n return arrayLayerState.layer === layerState.layer;\n }), 67);\n layerStatesArray.push(layerState);\n }, this);\n this.mapRenderKey_ = listen(this, EventType.CHANGE, map.render, map);\n this.changed();\n }\n };\n /**\n * Set the layer source.\n * @param {SourceType} source The layer source.\n * @observable\n * @api\n */\n Layer.prototype.setSource = function (source) {\n this.set(LayerProperty.SOURCE, source);\n };\n /**\n * Get the renderer for this layer.\n * @return {import(\"../renderer/Layer.js\").default} The layer renderer.\n */\n Layer.prototype.getRenderer = function () {\n if (!this.renderer_) {\n this.renderer_ = this.createRenderer();\n }\n return this.renderer_;\n };\n /**\n * @return {boolean} The layer has a renderer.\n */\n Layer.prototype.hasRenderer = function () {\n return !!this.renderer_;\n };\n /**\n * Create a renderer for this layer.\n * @return {import(\"../renderer/Layer.js\").default} A layer renderer.\n * @protected\n */\n Layer.prototype.createRenderer = function () {\n return null;\n };\n /**\n * @inheritDoc\n */\n Layer.prototype.disposeInternal = function () {\n this.setSource(null);\n _super.prototype.disposeInternal.call(this);\n };\n return Layer;\n}(BaseLayer));\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 var resolution = viewState.resolution;\n if (resolution < layerState.minResolution || resolution >= layerState.maxResolution) {\n return false;\n }\n var zoom = viewState.zoom;\n return zoom > layerState.minZoom && zoom <= layerState.maxZoom;\n}\nexport default Layer;\n//# sourceMappingURL=Layer.js.map","var __extends = (this && this.__extends) || (function () {\n var extendStatics = function (d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n return extendStatics(d, b);\n };\n return function (d, b) {\n extendStatics(d, b);\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n };\n})();\n/**\n * @module ol/control/Attribution\n */\nimport { equals } from '../array.js';\nimport Control from './Control.js';\nimport { CLASS_CONTROL, CLASS_UNSELECTABLE, CLASS_COLLAPSED } from '../css.js';\nimport { removeChildren, replaceNode } from '../dom.js';\nimport EventType from '../events/EventType.js';\nimport { inView } from '../layer/Layer.js';\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)} [render] Function called when\n * the control should be re-rendered. This is called in a `requestAnimationFrame`\n * callback.\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 */\nvar Attribution = /** @class */ (function (_super) {\n __extends(Attribution, _super);\n /**\n * @param {Options=} opt_options Attribution options.\n */\n function Attribution(opt_options) {\n var _this = this;\n var options = opt_options ? opt_options : {};\n _this = _super.call(this, {\n element: document.createElement('div'),\n render: options.render || render,\n target: options.target\n }) || this;\n /**\n * @private\n * @type {HTMLElement}\n */\n _this.ulElement_ = document.createElement('ul');\n /**\n * @private\n * @type {boolean}\n */\n _this.collapsed_ = options.collapsed !== undefined ? options.collapsed : true;\n /**\n * @private\n * @type {boolean}\n */\n _this.overrideCollapsible_ = options.collapsible !== undefined;\n /**\n * @private\n * @type {boolean}\n */\n _this.collapsible_ = options.collapsible !== undefined ?\n options.collapsible : true;\n if (!_this.collapsible_) {\n _this.collapsed_ = false;\n }\n var className = options.className !== undefined ? options.className : 'ol-attribution';\n var tipLabel = options.tipLabel !== undefined ? options.tipLabel : 'Attributions';\n var collapseLabel = options.collapseLabel !== undefined ? options.collapseLabel : '\\u00BB';\n if (typeof collapseLabel === 'string') {\n /**\n * @private\n * @type {HTMLElement}\n */\n _this.collapseLabel_ = document.createElement('span');\n _this.collapseLabel_.textContent = collapseLabel;\n }\n else {\n _this.collapseLabel_ = collapseLabel;\n }\n var label = options.label !== undefined ? options.label : 'i';\n if (typeof label === 'string') {\n /**\n * @private\n * @type {HTMLElement}\n */\n _this.label_ = document.createElement('span');\n _this.label_.textContent = label;\n }\n else {\n _this.label_ = label;\n }\n var activeLabel = (_this.collapsible_ && !_this.collapsed_) ?\n _this.collapseLabel_ : _this.label_;\n var button = document.createElement('button');\n button.setAttribute('type', 'button');\n button.title = tipLabel;\n button.appendChild(activeLabel);\n button.addEventListener(EventType.CLICK, _this.handleClick_.bind(_this), false);\n var cssClasses = className + ' ' + CLASS_UNSELECTABLE + ' ' + CLASS_CONTROL +\n (_this.collapsed_ && _this.collapsible_ ? ' ' + CLASS_COLLAPSED : '') +\n (_this.collapsible_ ? '' : ' ol-uncollapsible');\n var element = _this.element;\n element.className = cssClasses;\n element.appendChild(_this.ulElement_);\n element.appendChild(button);\n /**\n * A list of currently rendered resolutions.\n * @type {Array}\n * @private\n */\n _this.renderedAttributions_ = [];\n /**\n * @private\n * @type {boolean}\n */\n _this.renderedVisible_ = true;\n return _this;\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} Attributions.\n * @private\n */\n Attribution.prototype.collectSourceAttributions_ = function (frameState) {\n /**\n * Used to determine if an attribution already exists.\n * @type {!Object}\n */\n var lookup = {};\n /**\n * A list of visible attributions.\n * @type {Array}\n */\n var visibleAttributions = [];\n var layerStatesArray = frameState.layerStatesArray;\n for (var i = 0, ii = layerStatesArray.length; i < ii; ++i) {\n var layerState = layerStatesArray[i];\n if (!inView(layerState, frameState.viewState)) {\n continue;\n }\n var source = /** @type {import(\"../layer/Layer.js\").default} */ (layerState.layer).getSource();\n if (!source) {\n continue;\n }\n var attributionGetter = source.getAttributions();\n if (!attributionGetter) {\n continue;\n }\n var attributions = attributionGetter(frameState);\n if (!attributions) {\n continue;\n }\n if (!this.overrideCollapsible_ && source.getAttributionsCollapsible() === false) {\n this.setCollapsible(false);\n }\n if (Array.isArray(attributions)) {\n for (var 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 }\n else {\n if (!(attributions in lookup)) {\n visibleAttributions.push(attributions);\n lookup[attributions] = true;\n }\n }\n }\n return visibleAttributions;\n };\n /**\n * @private\n * @param {?import(\"../PluggableMap.js\").FrameState} frameState Frame state.\n */\n Attribution.prototype.updateElement_ = function (frameState) {\n if (!frameState) {\n if (this.renderedVisible_) {\n this.element.style.display = 'none';\n this.renderedVisible_ = false;\n }\n return;\n }\n var attributions = this.collectSourceAttributions_(frameState);\n var visible = attributions.length > 0;\n if (this.renderedVisible_ != visible) {\n this.element.style.display = visible ? '' : 'none';\n this.renderedVisible_ = visible;\n }\n if (equals(attributions, this.renderedAttributions_)) {\n return;\n }\n removeChildren(this.ulElement_);\n // append the attributions\n for (var i = 0, ii = attributions.length; i < ii; ++i) {\n var element = document.createElement('li');\n element.innerHTML = attributions[i];\n this.ulElement_.appendChild(element);\n }\n this.renderedAttributions_ = attributions;\n };\n /**\n * @param {MouseEvent} event The event to handle\n * @private\n */\n Attribution.prototype.handleClick_ = function (event) {\n event.preventDefault();\n this.handleToggle_();\n };\n /**\n * @private\n */\n Attribution.prototype.handleToggle_ = function () {\n this.element.classList.toggle(CLASS_COLLAPSED);\n if (this.collapsed_) {\n replaceNode(this.collapseLabel_, this.label_);\n }\n else {\n replaceNode(this.label_, this.collapseLabel_);\n }\n this.collapsed_ = !this.collapsed_;\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 Attribution.prototype.getCollapsible = function () {\n return this.collapsible_;\n };\n /**\n * Set whether the attribution should be collapsible.\n * @param {boolean} collapsible True if the widget is collapsible.\n * @api\n */\n Attribution.prototype.setCollapsible = function (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 * 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 Attribution.prototype.setCollapsed = function (collapsed) {\n if (!this.collapsible_ || this.collapsed_ === collapsed) {\n return;\n }\n this.handleToggle_();\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 Attribution.prototype.getCollapsed = function () {\n return this.collapsed_;\n };\n return Attribution;\n}(Control));\n/**\n * Update the attribution element.\n * @param {import(\"../MapEvent.js\").default} mapEvent Map event.\n * @this {Attribution}\n */\nexport function render(mapEvent) {\n this.updateElement_(mapEvent.frameState);\n}\nexport default Attribution;\n//# sourceMappingURL=Attribution.js.map","var __extends = (this && this.__extends) || (function () {\n var extendStatics = function (d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n return extendStatics(d, b);\n };\n return function (d, b) {\n extendStatics(d, b);\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n };\n})();\n/**\n * @module ol/control/Rotate\n */\nimport Control from './Control.js';\nimport { CLASS_CONTROL, CLASS_HIDDEN, CLASS_UNSELECTABLE } from '../css.js';\nimport { easeOut } from '../easing.js';\nimport EventType from '../events/EventType.js';\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)} [render] Function called when the control should\n * be re-rendered. This is called in a `requestAnimationFrame` callback.\n * @property {function()} [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 * @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 */\nvar Rotate = /** @class */ (function (_super) {\n __extends(Rotate, _super);\n /**\n * @param {Options=} opt_options Rotate options.\n */\n function Rotate(opt_options) {\n var _this = this;\n var options = opt_options ? opt_options : {};\n _this = _super.call(this, {\n element: document.createElement('div'),\n render: options.render || render,\n target: options.target\n }) || this;\n var className = options.className !== undefined ? options.className : 'ol-rotate';\n var label = options.label !== undefined ? options.label : '\\u21E7';\n /**\n * @type {HTMLElement}\n * @private\n */\n _this.label_ = null;\n if (typeof label === 'string') {\n _this.label_ = document.createElement('span');\n _this.label_.className = 'ol-compass';\n _this.label_.textContent = label;\n }\n else {\n _this.label_ = label;\n _this.label_.classList.add('ol-compass');\n }\n var tipLabel = options.tipLabel ? options.tipLabel : 'Reset rotation';\n var button = document.createElement('button');\n button.className = className + '-reset';\n button.setAttribute('type', 'button');\n button.title = tipLabel;\n button.appendChild(_this.label_);\n button.addEventListener(EventType.CLICK, _this.handleClick_.bind(_this), false);\n var cssClasses = className + ' ' + CLASS_UNSELECTABLE + ' ' + CLASS_CONTROL;\n var element = _this.element;\n element.className = cssClasses;\n element.appendChild(button);\n _this.callResetNorth_ = options.resetNorth ? options.resetNorth : undefined;\n /**\n * @type {number}\n * @private\n */\n _this.duration_ = options.duration !== undefined ? options.duration : 250;\n /**\n * @type {boolean}\n * @private\n */\n _this.autoHide_ = options.autoHide !== undefined ? options.autoHide : true;\n /**\n * @private\n * @type {number|undefined}\n */\n _this.rotation_ = undefined;\n if (_this.autoHide_) {\n _this.element.classList.add(CLASS_HIDDEN);\n }\n return _this;\n }\n /**\n * @param {MouseEvent} event The event to handle\n * @private\n */\n Rotate.prototype.handleClick_ = function (event) {\n event.preventDefault();\n if (this.callResetNorth_ !== undefined) {\n this.callResetNorth_();\n }\n else {\n this.resetNorth_();\n }\n };\n /**\n * @private\n */\n Rotate.prototype.resetNorth_ = function () {\n var map = this.getMap();\n var 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 var 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 }\n else {\n view.setRotation(0);\n }\n }\n };\n return Rotate;\n}(Control));\n/**\n * Update the rotate control element.\n * @param {import(\"../MapEvent.js\").default} mapEvent Map event.\n * @this {Rotate}\n */\nexport function render(mapEvent) {\n var frameState = mapEvent.frameState;\n if (!frameState) {\n return;\n }\n var rotation = frameState.viewState.rotation;\n if (rotation != this.rotation_) {\n var transform = 'rotate(' + rotation + 'rad)';\n if (this.autoHide_) {\n var contains = this.element.classList.contains(CLASS_HIDDEN);\n if (!contains && rotation === 0) {\n this.element.classList.add(CLASS_HIDDEN);\n }\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}\nexport default Rotate;\n//# sourceMappingURL=Rotate.js.map","var __extends = (this && this.__extends) || (function () {\n var extendStatics = function (d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n return extendStatics(d, b);\n };\n return function (d, b) {\n extendStatics(d, b);\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n };\n})();\n/**\n * @module ol/control/Zoom\n */\nimport EventType from '../events/EventType.js';\nimport Control from './Control.js';\nimport { CLASS_CONTROL, CLASS_UNSELECTABLE } from '../css.js';\nimport { easeOut } from '../easing.js';\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 * @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 */\nvar Zoom = /** @class */ (function (_super) {\n __extends(Zoom, _super);\n /**\n * @param {Options=} opt_options Zoom options.\n */\n function Zoom(opt_options) {\n var _this = this;\n var options = opt_options ? opt_options : {};\n _this = _super.call(this, {\n element: document.createElement('div'),\n target: options.target\n }) || this;\n var className = options.className !== undefined ? options.className : 'ol-zoom';\n var delta = options.delta !== undefined ? options.delta : 1;\n var zoomInLabel = options.zoomInLabel !== undefined ? options.zoomInLabel : '+';\n var zoomOutLabel = options.zoomOutLabel !== undefined ? options.zoomOutLabel : '\\u2212';\n var zoomInTipLabel = options.zoomInTipLabel !== undefined ?\n options.zoomInTipLabel : 'Zoom in';\n var zoomOutTipLabel = options.zoomOutTipLabel !== undefined ?\n options.zoomOutTipLabel : 'Zoom out';\n var inElement = document.createElement('button');\n inElement.className = className + '-in';\n inElement.setAttribute('type', 'button');\n inElement.title = zoomInTipLabel;\n inElement.appendChild(typeof zoomInLabel === 'string' ? document.createTextNode(zoomInLabel) : zoomInLabel);\n inElement.addEventListener(EventType.CLICK, _this.handleClick_.bind(_this, delta), false);\n var outElement = document.createElement('button');\n outElement.className = className + '-out';\n outElement.setAttribute('type', 'button');\n outElement.title = zoomOutTipLabel;\n outElement.appendChild(typeof zoomOutLabel === 'string' ? document.createTextNode(zoomOutLabel) : zoomOutLabel);\n outElement.addEventListener(EventType.CLICK, _this.handleClick_.bind(_this, -delta), false);\n var cssClasses = className + ' ' + CLASS_UNSELECTABLE + ' ' + CLASS_CONTROL;\n var element = _this.element;\n element.className = cssClasses;\n element.appendChild(inElement);\n element.appendChild(outElement);\n /**\n * @type {number}\n * @private\n */\n _this.duration_ = options.duration !== undefined ? options.duration : 250;\n return _this;\n }\n /**\n * @param {number} delta Zoom delta.\n * @param {MouseEvent} event The event to handle\n * @private\n */\n Zoom.prototype.handleClick_ = function (delta, event) {\n event.preventDefault();\n this.zoomByDelta_(delta);\n };\n /**\n * @param {number} delta Zoom delta.\n * @private\n */\n Zoom.prototype.zoomByDelta_ = function (delta) {\n var map = this.getMap();\n var 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 var currentZoom = view.getZoom();\n if (currentZoom !== undefined) {\n var 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 }\n else {\n view.setZoom(newZoom);\n }\n }\n };\n return Zoom;\n}(Control));\nexport default Zoom;\n//# sourceMappingURL=Zoom.js.map","/**\n * @module ol/control\n */\nimport Collection from './Collection.js';\nimport Attribution from './control/Attribution.js';\nimport Rotate from './control/Rotate.js';\nimport Zoom from './control/Zoom.js';\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 * @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 * 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}\n * Controls.\n * @api\n */\nexport function defaults(opt_options) {\n var options = opt_options ? opt_options : {};\n var controls = new Collection();\n var zoomControl = options.zoom !== undefined ? options.zoom : true;\n if (zoomControl) {\n controls.push(new Zoom(options.zoomOptions));\n }\n var rotateControl = options.rotate !== undefined ? options.rotate : true;\n if (rotateControl) {\n controls.push(new Rotate(options.rotateOptions));\n }\n var attributionControl = options.attribution !== undefined ?\n options.attribution : true;\n if (attributionControl) {\n controls.push(new Attribution(options.attributionOptions));\n }\n return controls;\n}\n//# sourceMappingURL=control.js.map","/**\n * @module ol/interaction/Property\n */\n/**\n * @enum {string}\n */\nexport default {\n ACTIVE: 'active'\n};\n//# sourceMappingURL=Property.js.map","var __extends = (this && this.__extends) || (function () {\n var extendStatics = function (d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n return extendStatics(d, b);\n };\n return function (d, b) {\n extendStatics(d, b);\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n };\n})();\n/**\n * @module ol/interaction/Interaction\n */\nimport BaseObject from '../Object.js';\nimport { easeOut, linear } from '../easing.js';\nimport InteractionProperty from './Property.js';\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 * @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 */\nvar Interaction = /** @class */ (function (_super) {\n __extends(Interaction, _super);\n /**\n * @param {InteractionOptions} options Options.\n */\n function Interaction(options) {\n var _this = _super.call(this) || this;\n if (options.handleEvent) {\n _this.handleEvent = options.handleEvent;\n }\n /**\n * @private\n * @type {import(\"../PluggableMap.js\").default}\n */\n _this.map_ = null;\n _this.setActive(true);\n return _this;\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 Interaction.prototype.getActive = function () {\n return /** @type {boolean} */ (this.get(InteractionProperty.ACTIVE));\n };\n /**\n * Get the map associated with this interaction.\n * @return {import(\"../PluggableMap.js\").default} Map.\n * @api\n */\n Interaction.prototype.getMap = function () {\n return this.map_;\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 Interaction.prototype.handleEvent = function (mapBrowserEvent) {\n return true;\n };\n /**\n * Activate or deactivate the interaction.\n * @param {boolean} active Active.\n * @observable\n * @api\n */\n Interaction.prototype.setActive = function (active) {\n this.set(InteractionProperty.ACTIVE, active);\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 Interaction.prototype.setMap = function (map) {\n this.map_ = map;\n };\n return Interaction;\n}(BaseObject));\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 var currentCenter = view.getCenterInternal();\n if (currentCenter) {\n var 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 * @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 var currentZoom = view.getZoom();\n if (currentZoom === undefined) {\n return;\n }\n var newZoom = view.getConstrainedZoom(currentZoom + delta);\n var newResolution = view.getResolutionForZoom(newZoom);\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}\nexport default Interaction;\n//# sourceMappingURL=Interaction.js.map","var __extends = (this && this.__extends) || (function () {\n var extendStatics = function (d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n return extendStatics(d, b);\n };\n return function (d, b) {\n extendStatics(d, b);\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n };\n})();\n/**\n * @module ol/interaction/DoubleClickZoom\n */\nimport MapBrowserEventType from '../MapBrowserEventType.js';\nimport Interaction, { zoomByDelta } from './Interaction.js';\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 * @classdesc\n * Allows the user to zoom by double-clicking on the map.\n * @api\n */\nvar DoubleClickZoom = /** @class */ (function (_super) {\n __extends(DoubleClickZoom, _super);\n /**\n * @param {Options=} opt_options Options.\n */\n function DoubleClickZoom(opt_options) {\n var _this = _super.call(this, {\n handleEvent: handleEvent\n }) || this;\n var options = opt_options ? opt_options : {};\n /**\n * @private\n * @type {number}\n */\n _this.delta_ = options.delta ? options.delta : 1;\n /**\n * @private\n * @type {number}\n */\n _this.duration_ = options.duration !== undefined ? options.duration : 250;\n return _this;\n }\n return DoubleClickZoom;\n}(Interaction));\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 * @this {DoubleClickZoom}\n */\nfunction handleEvent(mapBrowserEvent) {\n var stopEvent = false;\n if (mapBrowserEvent.type == MapBrowserEventType.DBLCLICK) {\n var browserEvent = /** @type {MouseEvent} */ (mapBrowserEvent.originalEvent);\n var map = mapBrowserEvent.map;\n var anchor = mapBrowserEvent.coordinate;\n var delta = browserEvent.shiftKey ? -this.delta_ : this.delta_;\n var view = map.getView();\n zoomByDelta(view, delta, anchor, this.duration_);\n mapBrowserEvent.preventDefault();\n stopEvent = true;\n }\n return !stopEvent;\n}\nexport default DoubleClickZoom;\n//# sourceMappingURL=DoubleClickZoom.js.map","/**\n * @module ol/events/condition\n */\nimport MapBrowserEventType from '../MapBrowserEventType.js';\nimport { assert } from '../asserts.js';\nimport { TRUE, FALSE } from '../functions.js';\nimport { WEBKIT, MAC } from '../has.js';\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 * 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 var altKeyOnly = function (mapBrowserEvent) {\n var originalEvent = /** @type {KeyboardEvent|MouseEvent|TouchEvent} */ (mapBrowserEvent.originalEvent);\n return (originalEvent.altKey &&\n !(originalEvent.metaKey || originalEvent.ctrlKey) &&\n !originalEvent.shiftKey);\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 var altShiftKeysOnly = function (mapBrowserEvent) {\n var originalEvent = /** @type {KeyboardEvent|MouseEvent|TouchEvent} */ (mapBrowserEvent.originalEvent);\n return (originalEvent.altKey &&\n !(originalEvent.metaKey || originalEvent.ctrlKey) &&\n originalEvent.shiftKey);\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. `
`.\n *\n * @param {import(\"../MapBrowserEvent.js\").default} event Map browser event.\n * @return {boolean} The map has the focus.\n * @api\n */\nexport var focus = function (event) {\n return event.target.getTargetElement() === document.activeElement;\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 var always = TRUE;\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 var click = function (mapBrowserEvent) {\n return mapBrowserEvent.type == MapBrowserEventType.CLICK;\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 var mouseActionButton = function (mapBrowserEvent) {\n var originalEvent = /** @type {MouseEvent} */ (mapBrowserEvent.originalEvent);\n return originalEvent.button == 0 &&\n !(WEBKIT && MAC && originalEvent.ctrlKey);\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 var never = FALSE;\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 var pointerMove = function (mapBrowserEvent) {\n return mapBrowserEvent.type == 'pointermove';\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 var singleClick = function (mapBrowserEvent) {\n return mapBrowserEvent.type == MapBrowserEventType.SINGLECLICK;\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 var doubleClick = function (mapBrowserEvent) {\n return mapBrowserEvent.type == MapBrowserEventType.DBLCLICK;\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 var noModifierKeys = function (mapBrowserEvent) {\n var originalEvent = /** @type {KeyboardEvent|MouseEvent|TouchEvent} */ (mapBrowserEvent.originalEvent);\n return (!originalEvent.altKey &&\n !(originalEvent.metaKey || originalEvent.ctrlKey) &&\n !originalEvent.shiftKey);\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 var platformModifierKeyOnly = function (mapBrowserEvent) {\n var originalEvent = /** @type {KeyboardEvent|MouseEvent|TouchEvent} */ (mapBrowserEvent.originalEvent);\n return !originalEvent.altKey &&\n (MAC ? originalEvent.metaKey : originalEvent.ctrlKey) &&\n !originalEvent.shiftKey;\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 var shiftKeyOnly = function (mapBrowserEvent) {\n var originalEvent = /** @type {KeyboardEvent|MouseEvent|TouchEvent} */ (mapBrowserEvent.originalEvent);\n return (!originalEvent.altKey &&\n !(originalEvent.metaKey || originalEvent.ctrlKey) &&\n originalEvent.shiftKey);\n};\n/**\n * Return `true` if the target element is not editable, i.e. not a ``-,\n * `