Платформа ЦРНП "Мирокод" для разработки проектов
https://git.mirocod.ru
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2861 lines
83 KiB
2861 lines
83 KiB
{{template "base/head" .}} |
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<div class="page-content explore repositories"> |
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{{template "map/navbar" .}} |
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<link rel="stylesheet" href="https://unpkg.com/leaflet@1.0.3/dist/leaflet.css" integrity="sha512-07I2e+7D8p6he1SIM+1twR5TIrhUQn9+I6yjqD53JQjFiMf8EtC93ty0/5vJTZGF8aAocvHYNEDJajGdNx1IsQ==" crossorigin="" /> |
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<script src="https://unpkg.com/leaflet@1.0.3/dist/leaflet-src.js" integrity="sha512-WXoSHqw/t26DszhdMhOXOkI7qCiv5QWXhH9R7CgvgZMHz1ImlkVQ3uNsiQKu5wwbbxtPzFXd1hK4tzno2VqhpA==" crossorigin=""></script> |
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<meta name="viewport" content="width=device-width, initial-scale=1.0"> |
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<style> |
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#map { |
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width: 100%; |
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height: 600px; |
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border: 1px solid #ccc; |
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z-index: 10; |
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} |
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#progress { |
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display: none; |
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position: absolute; |
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z-index: 1000; |
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left: 400px; |
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top: 300px; |
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width: 200px; |
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height: 20px; |
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margin-top: -20px; |
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margin-left: -100px; |
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background-color: #fff; |
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background-color: rgba(255, 255, 255, 0.7); |
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border-radius: 4px; |
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padding: 2px; |
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} |
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#progress-bar { |
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width: 0; |
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height: 100%; |
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background-color: #76A6FC; |
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border-radius: 4px; |
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} |
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.leaflet-cluster-anim .leaflet-marker-icon, .leaflet-cluster-anim .leaflet-marker-shadow { |
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-webkit-transition: -webkit-transform 0.3s ease-out, opacity 0.3s ease-in; |
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-moz-transition: -moz-transform 0.3s ease-out, opacity 0.3s ease-in; |
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-o-transition: -o-transform 0.3s ease-out, opacity 0.3s ease-in; |
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transition: transform 0.3s ease-out, opacity 0.3s ease-in; |
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} |
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.leaflet-cluster-spider-leg { |
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/* stroke-dashoffset (duration and function) should match with leaflet-marker-icon transform in order to track it exactly */ |
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-webkit-transition: -webkit-stroke-dashoffset 0.3s ease-out, -webkit-stroke-opacity 0.3s ease-in; |
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-moz-transition: -moz-stroke-dashoffset 0.3s ease-out, -moz-stroke-opacity 0.3s ease-in; |
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-o-transition: -o-stroke-dashoffset 0.3s ease-out, -o-stroke-opacity 0.3s ease-in; |
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transition: stroke-dashoffset 0.3s ease-out, stroke-opacity 0.3s ease-in; |
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} |
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.marker-cluster-small { |
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background-color: rgba(181, 226, 140, 0.6); |
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} |
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.marker-cluster-small div { |
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background-color: rgba(110, 204, 57, 0.6); |
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} |
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.marker-cluster-medium { |
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background-color: rgba(241, 211, 87, 0.6); |
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} |
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.marker-cluster-medium div { |
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background-color: rgba(240, 194, 12, 0.6); |
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} |
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.marker-cluster-large { |
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background-color: rgba(253, 156, 115, 0.6); |
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} |
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.marker-cluster-large div { |
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background-color: rgba(241, 128, 23, 0.6); |
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} |
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/* IE 6-8 fallback colors */ |
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.leaflet-oldie .marker-cluster-small { |
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background-color: rgb(181, 226, 140); |
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} |
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.leaflet-oldie .marker-cluster-small div { |
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background-color: rgb(110, 204, 57); |
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} |
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.leaflet-oldie .marker-cluster-medium { |
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background-color: rgb(241, 211, 87); |
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} |
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.leaflet-oldie .marker-cluster-medium div { |
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background-color: rgb(240, 194, 12); |
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} |
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.leaflet-oldie .marker-cluster-large { |
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background-color: rgb(253, 156, 115); |
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} |
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.leaflet-oldie .marker-cluster-large div { |
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background-color: rgb(241, 128, 23); |
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} |
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.marker-cluster { |
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background-clip: padding-box; |
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border-radius: 20px; |
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} |
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.marker-cluster div { |
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width: 30px; |
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height: 30px; |
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margin-left: 5px; |
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margin-top: 5px; |
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text-align: center; |
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border-radius: 15px; |
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font: 12px "Helvetica Neue", Arial, Helvetica, sans-serif; |
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} |
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.marker-cluster span { |
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line-height: 30px; |
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} |
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</style> |
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<script> |
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/* |
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* Leaflet.markercluster 1.4.1+master.37ab9a2, |
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* Provides Beautiful Animated Marker Clustering functionality for Leaflet, a JS library for interactive maps. |
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* https://github.com/Leaflet/Leaflet.markercluster |
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* (c) 2012-2017, Dave Leaver, smartrak |
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*/ |
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(function (global, factory) { |
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typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) : |
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typeof define === 'function' && define.amd ? define(['exports'], factory) : |
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(factory((global.Leaflet = global.Leaflet || {}, global.Leaflet.markercluster = global.Leaflet.markercluster || {}))); |
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}(this, (function (exports) { 'use strict'; |
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/* |
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* L.MarkerClusterGroup extends L.FeatureGroup by clustering the markers contained within |
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*/ |
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var MarkerClusterGroup = L.MarkerClusterGroup = L.FeatureGroup.extend({ |
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options: { |
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maxClusterRadius: 80, //A cluster will cover at most this many pixels from its center |
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iconCreateFunction: null, |
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clusterPane: L.Marker.prototype.options.pane, |
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spiderfyOnMaxZoom: true, |
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showCoverageOnHover: true, |
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zoomToBoundsOnClick: true, |
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singleMarkerMode: false, |
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disableClusteringAtZoom: null, |
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// Setting this to false prevents the removal of any clusters outside of the viewpoint, which |
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// is the default behaviour for performance reasons. |
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removeOutsideVisibleBounds: true, |
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// Set to false to disable all animations (zoom and spiderfy). |
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// If false, option animateAddingMarkers below has no effect. |
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// If L.DomUtil.TRANSITION is falsy, this option has no effect. |
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animate: true, |
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//Whether to animate adding markers after adding the MarkerClusterGroup to the map |
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// If you are adding individual markers set to true, if adding bulk markers leave false for massive performance gains. |
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animateAddingMarkers: false, |
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//Increase to increase the distance away that spiderfied markers appear from the center |
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spiderfyDistanceMultiplier: 1, |
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// Make it possible to specify a polyline options on a spider leg |
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spiderLegPolylineOptions: { weight: 1.5, color: '#222', opacity: 0.5 }, |
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// When bulk adding layers, adds markers in chunks. Means addLayers may not add all the layers in the call, others will be loaded during setTimeouts |
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chunkedLoading: false, |
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chunkInterval: 200, // process markers for a maximum of ~ n milliseconds (then trigger the chunkProgress callback) |
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chunkDelay: 50, // at the end of each interval, give n milliseconds back to system/browser |
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chunkProgress: null, // progress callback: function(processed, total, elapsed) (e.g. for a progress indicator) |
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//Options to pass to the L.Polygon constructor |
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polygonOptions: {} |
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}, |
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initialize: function (options) { |
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L.Util.setOptions(this, options); |
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if (!this.options.iconCreateFunction) { |
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this.options.iconCreateFunction = this._defaultIconCreateFunction; |
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} |
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this._featureGroup = L.featureGroup(); |
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this._featureGroup.addEventParent(this); |
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this._nonPointGroup = L.featureGroup(); |
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this._nonPointGroup.addEventParent(this); |
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this._inZoomAnimation = 0; |
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this._needsClustering = []; |
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this._needsRemoving = []; //Markers removed while we aren't on the map need to be kept track of |
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//The bounds of the currently shown area (from _getExpandedVisibleBounds) Updated on zoom/move |
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this._currentShownBounds = null; |
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this._queue = []; |
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this._childMarkerEventHandlers = { |
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'dragstart': this._childMarkerDragStart, |
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'move': this._childMarkerMoved, |
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'dragend': this._childMarkerDragEnd, |
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}; |
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// Hook the appropriate animation methods. |
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var animate = L.DomUtil.TRANSITION && this.options.animate; |
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L.extend(this, animate ? this._withAnimation : this._noAnimation); |
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// Remember which MarkerCluster class to instantiate (animated or not). |
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this._markerCluster = animate ? L.MarkerCluster : L.MarkerClusterNonAnimated; |
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}, |
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addLayer: function (layer) { |
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if (layer instanceof L.LayerGroup) { |
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return this.addLayers([layer]); |
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} |
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//Don't cluster non point data |
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if (!layer.getLatLng) { |
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this._nonPointGroup.addLayer(layer); |
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this.fire('layeradd', { layer: layer }); |
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return this; |
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} |
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if (!this._map) { |
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this._needsClustering.push(layer); |
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this.fire('layeradd', { layer: layer }); |
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return this; |
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} |
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if (this.hasLayer(layer)) { |
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return this; |
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} |
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//If we have already clustered we'll need to add this one to a cluster |
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if (this._unspiderfy) { |
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this._unspiderfy(); |
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} |
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this._addLayer(layer, this._maxZoom); |
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this.fire('layeradd', { layer: layer }); |
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// Refresh bounds and weighted positions. |
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this._topClusterLevel._recalculateBounds(); |
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this._refreshClustersIcons(); |
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//Work out what is visible |
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var visibleLayer = layer, |
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currentZoom = this._zoom; |
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if (layer.__parent) { |
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while (visibleLayer.__parent._zoom >= currentZoom) { |
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visibleLayer = visibleLayer.__parent; |
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} |
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} |
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if (this._currentShownBounds.contains(visibleLayer.getLatLng())) { |
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if (this.options.animateAddingMarkers) { |
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this._animationAddLayer(layer, visibleLayer); |
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} else { |
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this._animationAddLayerNonAnimated(layer, visibleLayer); |
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} |
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} |
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return this; |
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}, |
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removeLayer: function (layer) { |
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if (layer instanceof L.LayerGroup) { |
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return this.removeLayers([layer]); |
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} |
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//Non point layers |
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if (!layer.getLatLng) { |
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this._nonPointGroup.removeLayer(layer); |
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this.fire('layerremove', { layer: layer }); |
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return this; |
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} |
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if (!this._map) { |
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if (!this._arraySplice(this._needsClustering, layer) && this.hasLayer(layer)) { |
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this._needsRemoving.push({ layer: layer, latlng: layer._latlng }); |
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} |
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this.fire('layerremove', { layer: layer }); |
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return this; |
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} |
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if (!layer.__parent) { |
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return this; |
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} |
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if (this._unspiderfy) { |
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this._unspiderfy(); |
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this._unspiderfyLayer(layer); |
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} |
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//Remove the marker from clusters |
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this._removeLayer(layer, true); |
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this.fire('layerremove', { layer: layer }); |
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|
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// Refresh bounds and weighted positions. |
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this._topClusterLevel._recalculateBounds(); |
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this._refreshClustersIcons(); |
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layer.off(this._childMarkerEventHandlers, this); |
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if (this._featureGroup.hasLayer(layer)) { |
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this._featureGroup.removeLayer(layer); |
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if (layer.clusterShow) { |
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layer.clusterShow(); |
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} |
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} |
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return this; |
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}, |
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|
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//Takes an array of markers and adds them in bulk |
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addLayers: function (layersArray, skipLayerAddEvent) { |
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if (!L.Util.isArray(layersArray)) { |
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return this.addLayer(layersArray); |
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} |
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var fg = this._featureGroup, |
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npg = this._nonPointGroup, |
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chunked = this.options.chunkedLoading, |
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chunkInterval = this.options.chunkInterval, |
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chunkProgress = this.options.chunkProgress, |
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l = layersArray.length, |
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offset = 0, |
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originalArray = true, |
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m; |
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if (this._map) { |
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var started = (new Date()).getTime(); |
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var process = L.bind(function () { |
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var start = (new Date()).getTime(); |
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for (; offset < l; offset++) { |
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if (chunked && offset % 200 === 0) { |
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// every couple hundred markers, instrument the time elapsed since processing started: |
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var elapsed = (new Date()).getTime() - start; |
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if (elapsed > chunkInterval) { |
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break; // been working too hard, time to take a break :-) |
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} |
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} |
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m = layersArray[offset]; |
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|
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// Group of layers, append children to layersArray and skip. |
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// Side effects: |
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// - Total increases, so chunkProgress ratio jumps backward. |
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// - Groups are not included in this group, only their non-group child layers (hasLayer). |
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// Changing array length while looping does not affect performance in current browsers: |
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// http://jsperf.com/for-loop-changing-length/6 |
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if (m instanceof L.LayerGroup) { |
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if (originalArray) { |
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layersArray = layersArray.slice(); |
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originalArray = false; |
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} |
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this._extractNonGroupLayers(m, layersArray); |
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l = layersArray.length; |
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continue; |
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} |
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|
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//Not point data, can't be clustered |
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if (!m.getLatLng) { |
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npg.addLayer(m); |
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if (!skipLayerAddEvent) { |
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this.fire('layeradd', { layer: m }); |
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} |
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continue; |
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} |
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if (this.hasLayer(m)) { |
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continue; |
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} |
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this._addLayer(m, this._maxZoom); |
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if (!skipLayerAddEvent) { |
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this.fire('layeradd', { layer: m }); |
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} |
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|
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//If we just made a cluster of size 2 then we need to remove the other marker from the map (if it is) or we never will |
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if (m.__parent) { |
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if (m.__parent.getChildCount() === 2) { |
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var markers = m.__parent.getAllChildMarkers(), |
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otherMarker = markers[0] === m ? markers[1] : markers[0]; |
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fg.removeLayer(otherMarker); |
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} |
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} |
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} |
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|
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if (chunkProgress) { |
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// report progress and time elapsed: |
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chunkProgress(offset, l, (new Date()).getTime() - started); |
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} |
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|
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// Completed processing all markers. |
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if (offset === l) { |
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|
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// Refresh bounds and weighted positions. |
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this._topClusterLevel._recalculateBounds(); |
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|
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this._refreshClustersIcons(); |
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|
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this._topClusterLevel._recursivelyAddChildrenToMap(null, this._zoom, this._currentShownBounds); |
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} else { |
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setTimeout(process, this.options.chunkDelay); |
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} |
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}, this); |
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process(); |
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} else { |
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var needsClustering = this._needsClustering; |
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|
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for (; offset < l; offset++) { |
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m = layersArray[offset]; |
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|
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// Group of layers, append children to layersArray and skip. |
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if (m instanceof L.LayerGroup) { |
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if (originalArray) { |
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layersArray = layersArray.slice(); |
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originalArray = false; |
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} |
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this._extractNonGroupLayers(m, layersArray); |
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l = layersArray.length; |
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continue; |
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} |
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|
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//Not point data, can't be clustered |
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if (!m.getLatLng) { |
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npg.addLayer(m); |
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continue; |
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} |
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|
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if (this.hasLayer(m)) { |
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continue; |
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} |
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|
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needsClustering.push(m); |
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} |
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} |
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return this; |
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}, |
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|
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//Takes an array of markers and removes them in bulk |
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removeLayers: function (layersArray) { |
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var i, m, |
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l = layersArray.length, |
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fg = this._featureGroup, |
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npg = this._nonPointGroup, |
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originalArray = true; |
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|
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if (!this._map) { |
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for (i = 0; i < l; i++) { |
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m = layersArray[i]; |
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|
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// Group of layers, append children to layersArray and skip. |
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if (m instanceof L.LayerGroup) { |
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if (originalArray) { |
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layersArray = layersArray.slice(); |
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originalArray = false; |
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} |
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this._extractNonGroupLayers(m, layersArray); |
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l = layersArray.length; |
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continue; |
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} |
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|
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this._arraySplice(this._needsClustering, m); |
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npg.removeLayer(m); |
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if (this.hasLayer(m)) { |
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this._needsRemoving.push({ layer: m, latlng: m._latlng }); |
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} |
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this.fire('layerremove', { layer: m }); |
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} |
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return this; |
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} |
|
|
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if (this._unspiderfy) { |
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this._unspiderfy(); |
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|
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// Work on a copy of the array, so that next loop is not affected. |
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var layersArray2 = layersArray.slice(), |
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l2 = l; |
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for (i = 0; i < l2; i++) { |
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m = layersArray2[i]; |
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|
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// Group of layers, append children to layersArray and skip. |
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if (m instanceof L.LayerGroup) { |
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this._extractNonGroupLayers(m, layersArray2); |
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l2 = layersArray2.length; |
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continue; |
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} |
|
|
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this._unspiderfyLayer(m); |
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} |
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} |
|
|
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for (i = 0; i < l; i++) { |
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m = layersArray[i]; |
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|
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// Group of layers, append children to layersArray and skip. |
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if (m instanceof L.LayerGroup) { |
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if (originalArray) { |
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layersArray = layersArray.slice(); |
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originalArray = false; |
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} |
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this._extractNonGroupLayers(m, layersArray); |
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l = layersArray.length; |
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continue; |
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} |
|
|
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if (!m.__parent) { |
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npg.removeLayer(m); |
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this.fire('layerremove', { layer: m }); |
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continue; |
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} |
|
|
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this._removeLayer(m, true, true); |
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this.fire('layerremove', { layer: m }); |
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|
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if (fg.hasLayer(m)) { |
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fg.removeLayer(m); |
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if (m.clusterShow) { |
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m.clusterShow(); |
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} |
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} |
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} |
|
|
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// Refresh bounds and weighted positions. |
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this._topClusterLevel._recalculateBounds(); |
|
|
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this._refreshClustersIcons(); |
|
|
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//Fix up the clusters and markers on the map |
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this._topClusterLevel._recursivelyAddChildrenToMap(null, this._zoom, this._currentShownBounds); |
|
|
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return this; |
|
}, |
|
|
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//Removes all layers from the MarkerClusterGroup |
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clearLayers: function () { |
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//Need our own special implementation as the LayerGroup one doesn't work for us |
|
|
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//If we aren't on the map (yet), blow away the markers we know of |
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if (!this._map) { |
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this._needsClustering = []; |
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this._needsRemoving = []; |
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delete this._gridClusters; |
|
delete this._gridUnclustered; |
|
} |
|
|
|
if (this._noanimationUnspiderfy) { |
|
this._noanimationUnspiderfy(); |
|
} |
|
|
|
//Remove all the visible layers |
|
this._featureGroup.clearLayers(); |
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this._nonPointGroup.clearLayers(); |
|
|
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this.eachLayer(function (marker) { |
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marker.off(this._childMarkerEventHandlers, this); |
|
delete marker.__parent; |
|
}, this); |
|
|
|
if (this._map) { |
|
//Reset _topClusterLevel and the DistanceGrids |
|
this._generateInitialClusters(); |
|
} |
|
|
|
return this; |
|
}, |
|
|
|
//Override FeatureGroup.getBounds as it doesn't work |
|
getBounds: function () { |
|
var bounds = new L.LatLngBounds(); |
|
|
|
if (this._topClusterLevel) { |
|
bounds.extend(this._topClusterLevel._bounds); |
|
} |
|
|
|
for (var i = this._needsClustering.length - 1; i >= 0; i--) { |
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bounds.extend(this._needsClustering[i].getLatLng()); |
|
} |
|
|
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bounds.extend(this._nonPointGroup.getBounds()); |
|
|
|
return bounds; |
|
}, |
|
|
|
//Overrides LayerGroup.eachLayer |
|
eachLayer: function (method, context) { |
|
var markers = this._needsClustering.slice(), |
|
needsRemoving = this._needsRemoving, |
|
thisNeedsRemoving, i, j; |
|
|
|
if (this._topClusterLevel) { |
|
this._topClusterLevel.getAllChildMarkers(markers); |
|
} |
|
|
|
for (i = markers.length - 1; i >= 0; i--) { |
|
thisNeedsRemoving = true; |
|
|
|
for (j = needsRemoving.length - 1; j >= 0; j--) { |
|
if (needsRemoving[j].layer === markers[i]) { |
|
thisNeedsRemoving = false; |
|
break; |
|
} |
|
} |
|
|
|
if (thisNeedsRemoving) { |
|
method.call(context, markers[i]); |
|
} |
|
} |
|
|
|
this._nonPointGroup.eachLayer(method, context); |
|
}, |
|
|
|
//Overrides LayerGroup.getLayers |
|
getLayers: function () { |
|
var layers = []; |
|
this.eachLayer(function (l) { |
|
layers.push(l); |
|
}); |
|
return layers; |
|
}, |
|
|
|
//Overrides LayerGroup.getLayer, WARNING: Really bad performance |
|
getLayer: function (id) { |
|
var result = null; |
|
|
|
id = parseInt(id, 10); |
|
|
|
this.eachLayer(function (l) { |
|
if (L.stamp(l) === id) { |
|
result = l; |
|
} |
|
}); |
|
|
|
return result; |
|
}, |
|
|
|
//Returns true if the given layer is in this MarkerClusterGroup |
|
hasLayer: function (layer) { |
|
if (!layer) { |
|
return false; |
|
} |
|
|
|
var i, anArray = this._needsClustering; |
|
|
|
for (i = anArray.length - 1; i >= 0; i--) { |
|
if (anArray[i] === layer) { |
|
return true; |
|
} |
|
} |
|
|
|
anArray = this._needsRemoving; |
|
for (i = anArray.length - 1; i >= 0; i--) { |
|
if (anArray[i].layer === layer) { |
|
return false; |
|
} |
|
} |
|
|
|
return !!(layer.__parent && layer.__parent._group === this) || this._nonPointGroup.hasLayer(layer); |
|
}, |
|
|
|
//Zoom down to show the given layer (spiderfying if necessary) then calls the callback |
|
zoomToShowLayer: function (layer, callback) { |
|
|
|
if (typeof callback !== 'function') { |
|
callback = function () {}; |
|
} |
|
|
|
var showMarker = function () { |
|
if ((layer._icon || layer.__parent._icon) && !this._inZoomAnimation) { |
|
this._map.off('moveend', showMarker, this); |
|
this.off('animationend', showMarker, this); |
|
|
|
if (layer._icon) { |
|
callback(); |
|
} else if (layer.__parent._icon) { |
|
this.once('spiderfied', callback, this); |
|
layer.__parent.spiderfy(); |
|
} |
|
} |
|
}; |
|
|
|
if (layer._icon && this._map.getBounds().contains(layer.getLatLng())) { |
|
//Layer is visible ond on screen, immediate return |
|
callback(); |
|
} else if (layer.__parent._zoom < Math.round(this._map._zoom)) { |
|
//Layer should be visible at this zoom level. It must not be on screen so just pan over to it |
|
this._map.on('moveend', showMarker, this); |
|
this._map.panTo(layer.getLatLng()); |
|
} else { |
|
this._map.on('moveend', showMarker, this); |
|
this.on('animationend', showMarker, this); |
|
layer.__parent.zoomToBounds(); |
|
} |
|
}, |
|
|
|
//Overrides FeatureGroup.onAdd |
|
onAdd: function (map) { |
|
this._map = map; |
|
var i, l, layer; |
|
|
|
if (!isFinite(this._map.getMaxZoom())) { |
|
throw "Map has no maxZoom specified"; |
|
} |
|
|
|
this._featureGroup.addTo(map); |
|
this._nonPointGroup.addTo(map); |
|
|
|
if (!this._gridClusters) { |
|
this._generateInitialClusters(); |
|
} |
|
|
|
this._maxLat = map.options.crs.projection.MAX_LATITUDE; |
|
|
|
//Restore all the positions as they are in the MCG before removing them |
|
for (i = 0, l = this._needsRemoving.length; i < l; i++) { |
|
layer = this._needsRemoving[i]; |
|
layer.newlatlng = layer.layer._latlng; |
|
layer.layer._latlng = layer.latlng; |
|
} |
|
//Remove them, then restore their new positions |
|
for (i = 0, l = this._needsRemoving.length; i < l; i++) { |
|
layer = this._needsRemoving[i]; |
|
this._removeLayer(layer.layer, true); |
|
layer.layer._latlng = layer.newlatlng; |
|
} |
|
this._needsRemoving = []; |
|
|
|
//Remember the current zoom level and bounds |
|
this._zoom = Math.round(this._map._zoom); |
|
this._currentShownBounds = this._getExpandedVisibleBounds(); |
|
|
|
this._map.on('zoomend', this._zoomEnd, this); |
|
this._map.on('moveend', this._moveEnd, this); |
|
|
|
if (this._spiderfierOnAdd) { //TODO FIXME: Not sure how to have spiderfier add something on here nicely |
|
this._spiderfierOnAdd(); |
|
} |
|
|
|
this._bindEvents(); |
|
|
|
//Actually add our markers to the map: |
|
l = this._needsClustering; |
|
this._needsClustering = []; |
|
this.addLayers(l, true); |
|
}, |
|
|
|
//Overrides FeatureGroup.onRemove |
|
onRemove: function (map) { |
|
map.off('zoomend', this._zoomEnd, this); |
|
map.off('moveend', this._moveEnd, this); |
|
|
|
this._unbindEvents(); |
|
|
|
//In case we are in a cluster animation |
|
this._map._mapPane.className = this._map._mapPane.className.replace(' leaflet-cluster-anim', ''); |
|
|
|
if (this._spiderfierOnRemove) { //TODO FIXME: Not sure how to have spiderfier add something on here nicely |
|
this._spiderfierOnRemove(); |
|
} |
|
|
|
delete this._maxLat; |
|
|
|
//Clean up all the layers we added to the map |
|
this._hideCoverage(); |
|
this._featureGroup.remove(); |
|
this._nonPointGroup.remove(); |
|
|
|
this._featureGroup.clearLayers(); |
|
|
|
this._map = null; |
|
}, |
|
|
|
getVisibleParent: function (marker) { |
|
var vMarker = marker; |
|
while (vMarker && !vMarker._icon) { |
|
vMarker = vMarker.__parent; |
|
} |
|
return vMarker || null; |
|
}, |
|
|
|
//Remove the given object from the given array |
|
_arraySplice: function (anArray, obj) { |
|
for (var i = anArray.length - 1; i >= 0; i--) { |
|
if (anArray[i] === obj) { |
|
anArray.splice(i, 1); |
|
return true; |
|
} |
|
} |
|
}, |
|
|
|
/** |
|
* Removes a marker from all _gridUnclustered zoom levels, starting at the supplied zoom. |
|
* @param marker to be removed from _gridUnclustered. |
|
* @param z integer bottom start zoom level (included) |
|
* @private |
|
*/ |
|
_removeFromGridUnclustered: function (marker, z) { |
|
var map = this._map, |
|
gridUnclustered = this._gridUnclustered, |
|
minZoom = Math.floor(this._map.getMinZoom()); |
|
|
|
for (; z >= minZoom; z--) { |
|
if (!gridUnclustered[z].removeObject(marker, map.project(marker.getLatLng(), z))) { |
|
break; |
|
} |
|
} |
|
}, |
|
|
|
_childMarkerDragStart: function (e) { |
|
e.target.__dragStart = e.target._latlng; |
|
}, |
|
|
|
_childMarkerMoved: function (e) { |
|
if (!this._ignoreMove && !e.target.__dragStart) { |
|
var isPopupOpen = e.target._popup && e.target._popup.isOpen(); |
|
|
|
this._moveChild(e.target, e.oldLatLng, e.latlng); |
|
|
|
if (isPopupOpen) { |
|
e.target.openPopup(); |
|
} |
|
} |
|
}, |
|
|
|
_moveChild: function (layer, from, to) { |
|
layer._latlng = from; |
|
this.removeLayer(layer); |
|
|
|
layer._latlng = to; |
|
this.addLayer(layer); |
|
}, |
|
|
|
_childMarkerDragEnd: function (e) { |
|
var dragStart = e.target.__dragStart; |
|
delete e.target.__dragStart; |
|
if (dragStart) { |
|
this._moveChild(e.target, dragStart, e.target._latlng); |
|
} |
|
}, |
|
|
|
|
|
//Internal function for removing a marker from everything. |
|
//dontUpdateMap: set to true if you will handle updating the map manually (for bulk functions) |
|
_removeLayer: function (marker, removeFromDistanceGrid, dontUpdateMap) { |
|
var gridClusters = this._gridClusters, |
|
gridUnclustered = this._gridUnclustered, |
|
fg = this._featureGroup, |
|
map = this._map, |
|
minZoom = Math.floor(this._map.getMinZoom()); |
|
|
|
//Remove the marker from distance clusters it might be in |
|
if (removeFromDistanceGrid) { |
|
this._removeFromGridUnclustered(marker, this._maxZoom); |
|
} |
|
|
|
//Work our way up the clusters removing them as we go if required |
|
var cluster = marker.__parent, |
|
markers = cluster._markers, |
|
otherMarker; |
|
|
|
//Remove the marker from the immediate parents marker list |
|
this._arraySplice(markers, marker); |
|
|
|
while (cluster) { |
|
cluster._childCount--; |
|
cluster._boundsNeedUpdate = true; |
|
|
|
if (cluster._zoom < minZoom) { |
|
//Top level, do nothing |
|
break; |
|
} else if (removeFromDistanceGrid && cluster._childCount <= 1) { //Cluster no longer required |
|
//We need to push the other marker up to the parent |
|
otherMarker = cluster._markers[0] === marker ? cluster._markers[1] : cluster._markers[0]; |
|
|
|
//Update distance grid |
|
gridClusters[cluster._zoom].removeObject(cluster, map.project(cluster._cLatLng, cluster._zoom)); |
|
gridUnclustered[cluster._zoom].addObject(otherMarker, map.project(otherMarker.getLatLng(), cluster._zoom)); |
|
|
|
//Move otherMarker up to parent |
|
this._arraySplice(cluster.__parent._childClusters, cluster); |
|
cluster.__parent._markers.push(otherMarker); |
|
otherMarker.__parent = cluster.__parent; |
|
|
|
if (cluster._icon) { |
|
//Cluster is currently on the map, need to put the marker on the map instead |
|
fg.removeLayer(cluster); |
|
if (!dontUpdateMap) { |
|
fg.addLayer(otherMarker); |
|
} |
|
} |
|
} else { |
|
cluster._iconNeedsUpdate = true; |
|
} |
|
|
|
cluster = cluster.__parent; |
|
} |
|
|
|
delete marker.__parent; |
|
}, |
|
|
|
_isOrIsParent: function (el, oel) { |
|
while (oel) { |
|
if (el === oel) { |
|
return true; |
|
} |
|
oel = oel.parentNode; |
|
} |
|
return false; |
|
}, |
|
|
|
//Override L.Evented.fire |
|
fire: function (type, data, propagate) { |
|
if (data && data.layer instanceof L.MarkerCluster) { |
|
//Prevent multiple clustermouseover/off events if the icon is made up of stacked divs (Doesn't work in ie <= 8, no relatedTarget) |
|
if (data.originalEvent && this._isOrIsParent(data.layer._icon, data.originalEvent.relatedTarget)) { |
|
return; |
|
} |
|
type = 'cluster' + type; |
|
} |
|
|
|
L.FeatureGroup.prototype.fire.call(this, type, data, propagate); |
|
}, |
|
|
|
//Override L.Evented.listens |
|
listens: function (type, propagate) { |
|
return L.FeatureGroup.prototype.listens.call(this, type, propagate) || L.FeatureGroup.prototype.listens.call(this, 'cluster' + type, propagate); |
|
}, |
|
|
|
//Default functionality |
|
_defaultIconCreateFunction: function (cluster) { |
|
var childCount = cluster.getChildCount(); |
|
|
|
var c = ' marker-cluster-'; |
|
if (childCount < 10) { |
|
c += 'small'; |
|
} else if (childCount < 100) { |
|
c += 'medium'; |
|
} else { |
|
c += 'large'; |
|
} |
|
|
|
return new L.DivIcon({ html: '<div><span>' + childCount + '</span></div>', className: 'marker-cluster' + c, iconSize: new L.Point(40, 40) }); |
|
}, |
|
|
|
_bindEvents: function () { |
|
var map = this._map, |
|
spiderfyOnMaxZoom = this.options.spiderfyOnMaxZoom, |
|
showCoverageOnHover = this.options.showCoverageOnHover, |
|
zoomToBoundsOnClick = this.options.zoomToBoundsOnClick; |
|
|
|
//Zoom on cluster click or spiderfy if we are at the lowest level |
|
if (spiderfyOnMaxZoom || zoomToBoundsOnClick) { |
|
this.on('clusterclick', this._zoomOrSpiderfy, this); |
|
} |
|
|
|
//Show convex hull (boundary) polygon on mouse over |
|
if (showCoverageOnHover) { |
|
this.on('clustermouseover', this._showCoverage, this); |
|
this.on('clustermouseout', this._hideCoverage, this); |
|
map.on('zoomend', this._hideCoverage, this); |
|
} |
|
}, |
|
|
|
_zoomOrSpiderfy: function (e) { |
|
var cluster = e.layer, |
|
bottomCluster = cluster; |
|
|
|
while (bottomCluster._childClusters.length === 1) { |
|
bottomCluster = bottomCluster._childClusters[0]; |
|
} |
|
|
|
if (bottomCluster._zoom === this._maxZoom && |
|
bottomCluster._childCount === cluster._childCount && |
|
this.options.spiderfyOnMaxZoom) { |
|
|
|
// All child markers are contained in a single cluster from this._maxZoom to this cluster. |
|
cluster.spiderfy(); |
|
} else if (this.options.zoomToBoundsOnClick) { |
|
cluster.zoomToBounds(); |
|
} |
|
|
|
// Focus the map again for keyboard users. |
|
if (e.originalEvent && e.originalEvent.keyCode === 13) { |
|
this._map._container.focus(); |
|
} |
|
}, |
|
|
|
_showCoverage: function (e) { |
|
var map = this._map; |
|
if (this._inZoomAnimation) { |
|
return; |
|
} |
|
if (this._shownPolygon) { |
|
map.removeLayer(this._shownPolygon); |
|
} |
|
if (e.layer.getChildCount() > 2 && e.layer !== this._spiderfied) { |
|
this._shownPolygon = new L.Polygon(e.layer.getConvexHull(), this.options.polygonOptions); |
|
map.addLayer(this._shownPolygon); |
|
} |
|
}, |
|
|
|
_hideCoverage: function () { |
|
if (this._shownPolygon) { |
|
this._map.removeLayer(this._shownPolygon); |
|
this._shownPolygon = null; |
|
} |
|
}, |
|
|
|
_unbindEvents: function () { |
|
var spiderfyOnMaxZoom = this.options.spiderfyOnMaxZoom, |
|
showCoverageOnHover = this.options.showCoverageOnHover, |
|
zoomToBoundsOnClick = this.options.zoomToBoundsOnClick, |
|
map = this._map; |
|
|
|
if (spiderfyOnMaxZoom || zoomToBoundsOnClick) { |
|
this.off('clusterclick', this._zoomOrSpiderfy, this); |
|
} |
|
if (showCoverageOnHover) { |
|
this.off('clustermouseover', this._showCoverage, this); |
|
this.off('clustermouseout', this._hideCoverage, this); |
|
map.off('zoomend', this._hideCoverage, this); |
|
} |
|
}, |
|
|
|
_zoomEnd: function () { |
|
if (!this._map) { //May have been removed from the map by a zoomEnd handler |
|
return; |
|
} |
|
this._mergeSplitClusters(); |
|
|
|
this._zoom = Math.round(this._map._zoom); |
|
this._currentShownBounds = this._getExpandedVisibleBounds(); |
|
}, |
|
|
|
_moveEnd: function () { |
|
if (this._inZoomAnimation) { |
|
return; |
|
} |
|
|
|
var newBounds = this._getExpandedVisibleBounds(); |
|
|
|
this._topClusterLevel._recursivelyRemoveChildrenFromMap(this._currentShownBounds, Math.floor(this._map.getMinZoom()), this._zoom, newBounds); |
|
this._topClusterLevel._recursivelyAddChildrenToMap(null, Math.round(this._map._zoom), newBounds); |
|
|
|
this._currentShownBounds = newBounds; |
|
return; |
|
}, |
|
|
|
_generateInitialClusters: function () { |
|
var maxZoom = Math.ceil(this._map.getMaxZoom()), |
|
minZoom = Math.floor(this._map.getMinZoom()), |
|
radius = this.options.maxClusterRadius, |
|
radiusFn = radius; |
|
|
|
//If we just set maxClusterRadius to a single number, we need to create |
|
//a simple function to return that number. Otherwise, we just have to |
|
//use the function we've passed in. |
|
if (typeof radius !== "function") { |
|
radiusFn = function () { return radius; }; |
|
} |
|
|
|
if (this.options.disableClusteringAtZoom !== null) { |
|
maxZoom = this.options.disableClusteringAtZoom - 1; |
|
} |
|
this._maxZoom = maxZoom; |
|
this._gridClusters = {}; |
|
this._gridUnclustered = {}; |
|
|
|
//Set up DistanceGrids for each zoom |
|
for (var zoom = maxZoom; zoom >= minZoom; zoom--) { |
|
this._gridClusters[zoom] = new L.DistanceGrid(radiusFn(zoom)); |
|
this._gridUnclustered[zoom] = new L.DistanceGrid(radiusFn(zoom)); |
|
} |
|
|
|
// Instantiate the appropriate L.MarkerCluster class (animated or not). |
|
this._topClusterLevel = new this._markerCluster(this, minZoom - 1); |
|
}, |
|
|
|
//Zoom: Zoom to start adding at (Pass this._maxZoom to start at the bottom) |
|
_addLayer: function (layer, zoom) { |
|
var gridClusters = this._gridClusters, |
|
gridUnclustered = this._gridUnclustered, |
|
minZoom = Math.floor(this._map.getMinZoom()), |
|
markerPoint, z; |
|
|
|
if (this.options.singleMarkerMode) { |
|
this._overrideMarkerIcon(layer); |
|
} |
|
|
|
layer.on(this._childMarkerEventHandlers, this); |
|
|
|
//Find the lowest zoom level to slot this one in |
|
for (; zoom >= minZoom; zoom--) { |
|
markerPoint = this._map.project(layer.getLatLng(), zoom); // calculate pixel position |
|
|
|
//Try find a cluster close by |
|
var closest = gridClusters[zoom].getNearObject(markerPoint); |
|
if (closest) { |
|
closest._addChild(layer); |
|
layer.__parent = closest; |
|
return; |
|
} |
|
|
|
//Try find a marker close by to form a new cluster with |
|
closest = gridUnclustered[zoom].getNearObject(markerPoint); |
|
if (closest) { |
|
var parent = closest.__parent; |
|
if (parent) { |
|
this._removeLayer(closest, false); |
|
} |
|
|
|
//Create new cluster with these 2 in it |
|
|
|
var newCluster = new this._markerCluster(this, zoom, closest, layer); |
|
gridClusters[zoom].addObject(newCluster, this._map.project(newCluster._cLatLng, zoom)); |
|
closest.__parent = newCluster; |
|
layer.__parent = newCluster; |
|
|
|
//First create any new intermediate parent clusters that don't exist |
|
var lastParent = newCluster; |
|
for (z = zoom - 1; z > parent._zoom; z--) { |
|
lastParent = new this._markerCluster(this, z, lastParent); |
|
gridClusters[z].addObject(lastParent, this._map.project(closest.getLatLng(), z)); |
|
} |
|
parent._addChild(lastParent); |
|
|
|
//Remove closest from this zoom level and any above that it is in, replace with newCluster |
|
this._removeFromGridUnclustered(closest, zoom); |
|
|
|
return; |
|
} |
|
|
|
//Didn't manage to cluster in at this zoom, record us as a marker here and continue upwards |
|
gridUnclustered[zoom].addObject(layer, markerPoint); |
|
} |
|
|
|
//Didn't get in anything, add us to the top |
|
this._topClusterLevel._addChild(layer); |
|
layer.__parent = this._topClusterLevel; |
|
return; |
|
}, |
|
|
|
/** |
|
* Refreshes the icon of all "dirty" visible clusters. |
|
* Non-visible "dirty" clusters will be updated when they are added to the map. |
|
* @private |
|
*/ |
|
_refreshClustersIcons: function () { |
|
this._featureGroup.eachLayer(function (c) { |
|
if (c instanceof L.MarkerCluster && c._iconNeedsUpdate) { |
|
c._updateIcon(); |
|
} |
|
}); |
|
}, |
|
|
|
//Enqueue code to fire after the marker expand/contract has happened |
|
_enqueue: function (fn) { |
|
this._queue.push(fn); |
|
if (!this._queueTimeout) { |
|
this._queueTimeout = setTimeout(L.bind(this._processQueue, this), 300); |
|
} |
|
}, |
|
_processQueue: function () { |
|
for (var i = 0; i < this._queue.length; i++) { |
|
this._queue[i].call(this); |
|
} |
|
this._queue.length = 0; |
|
clearTimeout(this._queueTimeout); |
|
this._queueTimeout = null; |
|
}, |
|
|
|
//Merge and split any existing clusters that are too big or small |
|
_mergeSplitClusters: function () { |
|
var mapZoom = Math.round(this._map._zoom); |
|
|
|
//In case we are starting to split before the animation finished |
|
this._processQueue(); |
|
|
|
if (this._zoom < mapZoom && this._currentShownBounds.intersects(this._getExpandedVisibleBounds())) { //Zoom in, split |
|
this._animationStart(); |
|
//Remove clusters now off screen |
|
this._topClusterLevel._recursivelyRemoveChildrenFromMap(this._currentShownBounds, Math.floor(this._map.getMinZoom()), this._zoom, this._getExpandedVisibleBounds()); |
|
|
|
this._animationZoomIn(this._zoom, mapZoom); |
|
|
|
} else if (this._zoom > mapZoom) { //Zoom out, merge |
|
this._animationStart(); |
|
|
|
this._animationZoomOut(this._zoom, mapZoom); |
|
} else { |
|
this._moveEnd(); |
|
} |
|
}, |
|
|
|
//Gets the maps visible bounds expanded in each direction by the size of the screen (so the user cannot see an area we do not cover in one pan) |
|
_getExpandedVisibleBounds: function () { |
|
if (!this.options.removeOutsideVisibleBounds) { |
|
return this._mapBoundsInfinite; |
|
} else if (L.Browser.mobile) { |
|
return this._checkBoundsMaxLat(this._map.getBounds()); |
|
} |
|
|
|
return this._checkBoundsMaxLat(this._map.getBounds().pad(1)); // Padding expands the bounds by its own dimensions but scaled with the given factor. |
|
}, |
|
|
|
/** |
|
* Expands the latitude to Infinity (or -Infinity) if the input bounds reach the map projection maximum defined latitude |
|
* (in the case of Web/Spherical Mercator, it is 85.0511287798 / see https://en.wikipedia.org/wiki/Web_Mercator#Formulas). |
|
* Otherwise, the removeOutsideVisibleBounds option will remove markers beyond that limit, whereas the same markers without |
|
* this option (or outside MCG) will have their position floored (ceiled) by the projection and rendered at that limit, |
|
* making the user think that MCG "eats" them and never displays them again. |
|
* @param bounds L.LatLngBounds |
|
* @returns {L.LatLngBounds} |
|
* @private |
|
*/ |
|
_checkBoundsMaxLat: function (bounds) { |
|
var maxLat = this._maxLat; |
|
|
|
if (maxLat !== undefined) { |
|
if (bounds.getNorth() >= maxLat) { |
|
bounds._northEast.lat = Infinity; |
|
} |
|
if (bounds.getSouth() <= -maxLat) { |
|
bounds._southWest.lat = -Infinity; |
|
} |
|
} |
|
|
|
return bounds; |
|
}, |
|
|
|
//Shared animation code |
|
_animationAddLayerNonAnimated: function (layer, newCluster) { |
|
if (newCluster === layer) { |
|
this._featureGroup.addLayer(layer); |
|
} else if (newCluster._childCount === 2) { |
|
newCluster._addToMap(); |
|
|
|
var markers = newCluster.getAllChildMarkers(); |
|
this._featureGroup.removeLayer(markers[0]); |
|
this._featureGroup.removeLayer(markers[1]); |
|
} else { |
|
newCluster._updateIcon(); |
|
} |
|
}, |
|
|
|
/** |
|
* Extracts individual (i.e. non-group) layers from a Layer Group. |
|
* @param group to extract layers from. |
|
* @param output {Array} in which to store the extracted layers. |
|
* @returns {*|Array} |
|
* @private |
|
*/ |
|
_extractNonGroupLayers: function (group, output) { |
|
var layers = group.getLayers(), |
|
i = 0, |
|
layer; |
|
|
|
output = output || []; |
|
|
|
for (; i < layers.length; i++) { |
|
layer = layers[i]; |
|
|
|
if (layer instanceof L.LayerGroup) { |
|
this._extractNonGroupLayers(layer, output); |
|
continue; |
|
} |
|
|
|
output.push(layer); |
|
} |
|
|
|
return output; |
|
}, |
|
|
|
/** |
|
* Implements the singleMarkerMode option. |
|
* @param layer Marker to re-style using the Clusters iconCreateFunction. |
|
* @returns {L.Icon} The newly created icon. |
|
* @private |
|
*/ |
|
_overrideMarkerIcon: function (layer) { |
|
var icon = layer.options.icon = this.options.iconCreateFunction({ |
|
getChildCount: function () { |
|
return 1; |
|
}, |
|
getAllChildMarkers: function () { |
|
return [layer]; |
|
} |
|
}); |
|
|
|
return icon; |
|
} |
|
}); |
|
|
|
// Constant bounds used in case option "removeOutsideVisibleBounds" is set to false. |
|
L.MarkerClusterGroup.include({ |
|
_mapBoundsInfinite: new L.LatLngBounds(new L.LatLng(-Infinity, -Infinity), new L.LatLng(Infinity, Infinity)) |
|
}); |
|
|
|
L.MarkerClusterGroup.include({ |
|
_noAnimation: { |
|
//Non Animated versions of everything |
|
_animationStart: function () { |
|
//Do nothing... |
|
}, |
|
_animationZoomIn: function (previousZoomLevel, newZoomLevel) { |
|
this._topClusterLevel._recursivelyRemoveChildrenFromMap(this._currentShownBounds, Math.floor(this._map.getMinZoom()), previousZoomLevel); |
|
this._topClusterLevel._recursivelyAddChildrenToMap(null, newZoomLevel, this._getExpandedVisibleBounds()); |
|
|
|
//We didn't actually animate, but we use this event to mean "clustering animations have finished" |
|
this.fire('animationend'); |
|
}, |
|
_animationZoomOut: function (previousZoomLevel, newZoomLevel) { |
|
this._topClusterLevel._recursivelyRemoveChildrenFromMap(this._currentShownBounds, Math.floor(this._map.getMinZoom()), previousZoomLevel); |
|
this._topClusterLevel._recursivelyAddChildrenToMap(null, newZoomLevel, this._getExpandedVisibleBounds()); |
|
|
|
//We didn't actually animate, but we use this event to mean "clustering animations have finished" |
|
this.fire('animationend'); |
|
}, |
|
_animationAddLayer: function (layer, newCluster) { |
|
this._animationAddLayerNonAnimated(layer, newCluster); |
|
} |
|
}, |
|
|
|
_withAnimation: { |
|
//Animated versions here |
|
_animationStart: function () { |
|
this._map._mapPane.className += ' leaflet-cluster-anim'; |
|
this._inZoomAnimation++; |
|
}, |
|
|
|
_animationZoomIn: function (previousZoomLevel, newZoomLevel) { |
|
var bounds = this._getExpandedVisibleBounds(), |
|
fg = this._featureGroup, |
|
minZoom = Math.floor(this._map.getMinZoom()), |
|
i; |
|
|
|
this._ignoreMove = true; |
|
|
|
//Add all children of current clusters to map and remove those clusters from map |
|
this._topClusterLevel._recursively(bounds, previousZoomLevel, minZoom, function (c) { |
|
var startPos = c._latlng, |
|
markers = c._markers, |
|
m; |
|
|
|
if (!bounds.contains(startPos)) { |
|
startPos = null; |
|
} |
|
|
|
if (c._isSingleParent() && previousZoomLevel + 1 === newZoomLevel) { //Immediately add the new child and remove us |
|
fg.removeLayer(c); |
|
c._recursivelyAddChildrenToMap(null, newZoomLevel, bounds); |
|
} else { |
|
//Fade out old cluster |
|
c.clusterHide(); |
|
c._recursivelyAddChildrenToMap(startPos, newZoomLevel, bounds); |
|
} |
|
|
|
//Remove all markers that aren't visible any more |
|
//TODO: Do we actually need to do this on the higher levels too? |
|
for (i = markers.length - 1; i >= 0; i--) { |
|
m = markers[i]; |
|
if (!bounds.contains(m._latlng)) { |
|
fg.removeLayer(m); |
|
} |
|
} |
|
|
|
}); |
|
|
|
this._forceLayout(); |
|
|
|
//Update opacities |
|
this._topClusterLevel._recursivelyBecomeVisible(bounds, newZoomLevel); |
|
//TODO Maybe? Update markers in _recursivelyBecomeVisible |
|
fg.eachLayer(function (n) { |
|
if (!(n instanceof L.MarkerCluster) && n._icon) { |
|
n.clusterShow(); |
|
} |
|
}); |
|
|
|
//update the positions of the just added clusters/markers |
|
this._topClusterLevel._recursively(bounds, previousZoomLevel, newZoomLevel, function (c) { |
|
c._recursivelyRestoreChildPositions(newZoomLevel); |
|
}); |
|
|
|
this._ignoreMove = false; |
|
|
|
//Remove the old clusters and close the zoom animation |
|
this._enqueue(function () { |
|
//update the positions of the just added clusters/markers |
|
this._topClusterLevel._recursively(bounds, previousZoomLevel, minZoom, function (c) { |
|
fg.removeLayer(c); |
|
c.clusterShow(); |
|
}); |
|
|
|
this._animationEnd(); |
|
}); |
|
}, |
|
|
|
_animationZoomOut: function (previousZoomLevel, newZoomLevel) { |
|
this._animationZoomOutSingle(this._topClusterLevel, previousZoomLevel - 1, newZoomLevel); |
|
|
|
//Need to add markers for those that weren't on the map before but are now |
|
this._topClusterLevel._recursivelyAddChildrenToMap(null, newZoomLevel, this._getExpandedVisibleBounds()); |
|
//Remove markers that were on the map before but won't be now |
|
this._topClusterLevel._recursivelyRemoveChildrenFromMap(this._currentShownBounds, Math.floor(this._map.getMinZoom()), previousZoomLevel, this._getExpandedVisibleBounds()); |
|
}, |
|
|
|
_animationAddLayer: function (layer, newCluster) { |
|
var me = this, |
|
fg = this._featureGroup; |
|
|
|
fg.addLayer(layer); |
|
if (newCluster !== layer) { |
|
if (newCluster._childCount > 2) { //Was already a cluster |
|
|
|
newCluster._updateIcon(); |
|
this._forceLayout(); |
|
this._animationStart(); |
|
|
|
layer._setPos(this._map.latLngToLayerPoint(newCluster.getLatLng())); |
|
layer.clusterHide(); |
|
|
|
this._enqueue(function () { |
|
fg.removeLayer(layer); |
|
layer.clusterShow(); |
|
|
|
me._animationEnd(); |
|
}); |
|
|
|
} else { //Just became a cluster |
|
this._forceLayout(); |
|
|
|
me._animationStart(); |
|
me._animationZoomOutSingle(newCluster, this._map.getMaxZoom(), this._zoom); |
|
} |
|
} |
|
} |
|
}, |
|
|
|
// Private methods for animated versions. |
|
_animationZoomOutSingle: function (cluster, previousZoomLevel, newZoomLevel) { |
|
var bounds = this._getExpandedVisibleBounds(), |
|
minZoom = Math.floor(this._map.getMinZoom()); |
|
|
|
//Animate all of the markers in the clusters to move to their cluster center point |
|
cluster._recursivelyAnimateChildrenInAndAddSelfToMap(bounds, minZoom, previousZoomLevel + 1, newZoomLevel); |
|
|
|
var me = this; |
|
|
|
//Update the opacity (If we immediately set it they won't animate) |
|
this._forceLayout(); |
|
cluster._recursivelyBecomeVisible(bounds, newZoomLevel); |
|
|
|
//TODO: Maybe use the transition timing stuff to make this more reliable |
|
//When the animations are done, tidy up |
|
this._enqueue(function () { |
|
|
|
//This cluster stopped being a cluster before the timeout fired |
|
if (cluster._childCount === 1) { |
|
var m = cluster._markers[0]; |
|
//If we were in a cluster animation at the time then the opacity and position of our child could be wrong now, so fix it |
|
this._ignoreMove = true; |
|
m.setLatLng(m.getLatLng()); |
|
this._ignoreMove = false; |
|
if (m.clusterShow) { |
|
m.clusterShow(); |
|
} |
|
} else { |
|
cluster._recursively(bounds, newZoomLevel, minZoom, function (c) { |
|
c._recursivelyRemoveChildrenFromMap(bounds, minZoom, previousZoomLevel + 1); |
|
}); |
|
} |
|
me._animationEnd(); |
|
}); |
|
}, |
|
|
|
_animationEnd: function () { |
|
if (this._map) { |
|
this._map._mapPane.className = this._map._mapPane.className.replace(' leaflet-cluster-anim', ''); |
|
} |
|
this._inZoomAnimation--; |
|
this.fire('animationend'); |
|
}, |
|
|
|
//Force a browser layout of stuff in the map |
|
// Should apply the current opacity and location to all elements so we can update them again for an animation |
|
_forceLayout: function () { |
|
//In my testing this works, infact offsetWidth of any element seems to work. |
|
//Could loop all this._layers and do this for each _icon if it stops working |
|
|
|
L.Util.falseFn(document.body.offsetWidth); |
|
} |
|
}); |
|
|
|
L.markerClusterGroup = function (options) { |
|
return new L.MarkerClusterGroup(options); |
|
}; |
|
|
|
var MarkerCluster = L.MarkerCluster = L.Marker.extend({ |
|
options: L.Icon.prototype.options, |
|
|
|
initialize: function (group, zoom, a, b) { |
|
|
|
L.Marker.prototype.initialize.call(this, a ? (a._cLatLng || a.getLatLng()) : new L.LatLng(0, 0), |
|
{ icon: this, pane: group.options.clusterPane }); |
|
|
|
this._group = group; |
|
this._zoom = zoom; |
|
|
|
this._markers = []; |
|
this._childClusters = []; |
|
this._childCount = 0; |
|
this._iconNeedsUpdate = true; |
|
this._boundsNeedUpdate = true; |
|
|
|
this._bounds = new L.LatLngBounds(); |
|
|
|
if (a) { |
|
this._addChild(a); |
|
} |
|
if (b) { |
|
this._addChild(b); |
|
} |
|
}, |
|
|
|
//Recursively retrieve all child markers of this cluster |
|
getAllChildMarkers: function (storageArray, ignoreDraggedMarker) { |
|
storageArray = storageArray || []; |
|
|
|
for (var i = this._childClusters.length - 1; i >= 0; i--) { |
|
this._childClusters[i].getAllChildMarkers(storageArray); |
|
} |
|
|
|
for (var j = this._markers.length - 1; j >= 0; j--) { |
|
if (ignoreDraggedMarker && this._markers[j].__dragStart) { |
|
continue; |
|
} |
|
storageArray.push(this._markers[j]); |
|
} |
|
|
|
return storageArray; |
|
}, |
|
|
|
//Returns the count of how many child markers we have |
|
getChildCount: function () { |
|
return this._childCount; |
|
}, |
|
|
|
//Zoom to the minimum of showing all of the child markers, or the extents of this cluster |
|
zoomToBounds: function (fitBoundsOptions) { |
|
var childClusters = this._childClusters.slice(), |
|
map = this._group._map, |
|
boundsZoom = map.getBoundsZoom(this._bounds), |
|
zoom = this._zoom + 1, |
|
mapZoom = map.getZoom(), |
|
i; |
|
|
|
//calculate how far we need to zoom down to see all of the markers |
|
while (childClusters.length > 0 && boundsZoom > zoom) { |
|
zoom++; |
|
var newClusters = []; |
|
for (i = 0; i < childClusters.length; i++) { |
|
newClusters = newClusters.concat(childClusters[i]._childClusters); |
|
} |
|
childClusters = newClusters; |
|
} |
|
|
|
if (boundsZoom > zoom) { |
|
this._group._map.setView(this._latlng, zoom); |
|
} else if (boundsZoom <= mapZoom) { //If fitBounds wouldn't zoom us down, zoom us down instead |
|
this._group._map.setView(this._latlng, mapZoom + 1); |
|
} else { |
|
this._group._map.fitBounds(this._bounds, fitBoundsOptions); |
|
} |
|
}, |
|
|
|
getBounds: function () { |
|
var bounds = new L.LatLngBounds(); |
|
bounds.extend(this._bounds); |
|
return bounds; |
|
}, |
|
|
|
_updateIcon: function () { |
|
this._iconNeedsUpdate = true; |
|
if (this._icon) { |
|
this.setIcon(this); |
|
} |
|
}, |
|
|
|
//Cludge for Icon, we pretend to be an icon for performance |
|
createIcon: function () { |
|
if (this._iconNeedsUpdate) { |
|
this._iconObj = this._group.options.iconCreateFunction(this); |
|
this._iconNeedsUpdate = false; |
|
} |
|
return this._iconObj.createIcon(); |
|
}, |
|
createShadow: function () { |
|
return this._iconObj.createShadow(); |
|
}, |
|
|
|
|
|
_addChild: function (new1, isNotificationFromChild) { |
|
|
|
this._iconNeedsUpdate = true; |
|
|
|
this._boundsNeedUpdate = true; |
|
this._setClusterCenter(new1); |
|
|
|
if (new1 instanceof L.MarkerCluster) { |
|
if (!isNotificationFromChild) { |
|
this._childClusters.push(new1); |
|
new1.__parent = this; |
|
} |
|
this._childCount += new1._childCount; |
|
} else { |
|
if (!isNotificationFromChild) { |
|
this._markers.push(new1); |
|
} |
|
this._childCount++; |
|
} |
|
|
|
if (this.__parent) { |
|
this.__parent._addChild(new1, true); |
|
} |
|
}, |
|
|
|
/** |
|
* Makes sure the cluster center is set. If not, uses the child center if it is a cluster, or the marker position. |
|
* @param child L.MarkerCluster|L.Marker that will be used as cluster center if not defined yet. |
|
* @private |
|
*/ |
|
_setClusterCenter: function (child) { |
|
if (!this._cLatLng) { |
|
// when clustering, take position of the first point as the cluster center |
|
this._cLatLng = child._cLatLng || child._latlng; |
|
} |
|
}, |
|
|
|
/** |
|
* Assigns impossible bounding values so that the next extend entirely determines the new bounds. |
|
* This method avoids having to trash the previous L.LatLngBounds object and to create a new one, which is much slower for this class. |
|
* As long as the bounds are not extended, most other methods would probably fail, as they would with bounds initialized but not extended. |
|
* @private |
|
*/ |
|
_resetBounds: function () { |
|
var bounds = this._bounds; |
|
|
|
if (bounds._southWest) { |
|
bounds._southWest.lat = Infinity; |
|
bounds._southWest.lng = Infinity; |
|
} |
|
if (bounds._northEast) { |
|
bounds._northEast.lat = -Infinity; |
|
bounds._northEast.lng = -Infinity; |
|
} |
|
}, |
|
|
|
_recalculateBounds: function () { |
|
var markers = this._markers, |
|
childClusters = this._childClusters, |
|
latSum = 0, |
|
lngSum = 0, |
|
totalCount = this._childCount, |
|
i, child, childLatLng, childCount; |
|
|
|
// Case where all markers are removed from the map and we are left with just an empty _topClusterLevel. |
|
if (totalCount === 0) { |
|
return; |
|
} |
|
|
|
// Reset rather than creating a new object, for performance. |
|
this._resetBounds(); |
|
|
|
// Child markers. |
|
for (i = 0; i < markers.length; i++) { |
|
childLatLng = markers[i]._latlng; |
|
|
|
this._bounds.extend(childLatLng); |
|
|
|
latSum += childLatLng.lat; |
|
lngSum += childLatLng.lng; |
|
} |
|
|
|
// Child clusters. |
|
for (i = 0; i < childClusters.length; i++) { |
|
child = childClusters[i]; |
|
|
|
// Re-compute child bounds and weighted position first if necessary. |
|
if (child._boundsNeedUpdate) { |
|
child._recalculateBounds(); |
|
} |
|
|
|
this._bounds.extend(child._bounds); |
|
|
|
childLatLng = child._wLatLng; |
|
childCount = child._childCount; |
|
|
|
latSum += childLatLng.lat * childCount; |
|
lngSum += childLatLng.lng * childCount; |
|
} |
|
|
|
this._latlng = this._wLatLng = new L.LatLng(latSum / totalCount, lngSum / totalCount); |
|
|
|
// Reset dirty flag. |
|
this._boundsNeedUpdate = false; |
|
}, |
|
|
|
//Set our markers position as given and add it to the map |
|
_addToMap: function (startPos) { |
|
if (startPos) { |
|
this._backupLatlng = this._latlng; |
|
this.setLatLng(startPos); |
|
} |
|
this._group._featureGroup.addLayer(this); |
|
}, |
|
|
|
_recursivelyAnimateChildrenIn: function (bounds, center, maxZoom) { |
|
this._recursively(bounds, this._group._map.getMinZoom(), maxZoom - 1, |
|
function (c) { |
|
var markers = c._markers, |
|
i, m; |
|
for (i = markers.length - 1; i >= 0; i--) { |
|
m = markers[i]; |
|
|
|
//Only do it if the icon is still on the map |
|
if (m._icon) { |
|
m._setPos(center); |
|
m.clusterHide(); |
|
} |
|
} |
|
}, |
|
function (c) { |
|
var childClusters = c._childClusters, |
|
j, cm; |
|
for (j = childClusters.length - 1; j >= 0; j--) { |
|
cm = childClusters[j]; |
|
if (cm._icon) { |
|
cm._setPos(center); |
|
cm.clusterHide(); |
|
} |
|
} |
|
} |
|
); |
|
}, |
|
|
|
_recursivelyAnimateChildrenInAndAddSelfToMap: function (bounds, mapMinZoom, previousZoomLevel, newZoomLevel) { |
|
this._recursively(bounds, newZoomLevel, mapMinZoom, |
|
function (c) { |
|
c._recursivelyAnimateChildrenIn(bounds, c._group._map.latLngToLayerPoint(c.getLatLng()).round(), previousZoomLevel); |
|
|
|
//TODO: depthToAnimateIn affects _isSingleParent, if there is a multizoom we may/may not be. |
|
//As a hack we only do a animation free zoom on a single level zoom, if someone does multiple levels then we always animate |
|
if (c._isSingleParent() && previousZoomLevel - 1 === newZoomLevel) { |
|
c.clusterShow(); |
|
c._recursivelyRemoveChildrenFromMap(bounds, mapMinZoom, previousZoomLevel); //Immediately remove our children as we are replacing them. TODO previousBounds not bounds |
|
} else { |
|
c.clusterHide(); |
|
} |
|
|
|
c._addToMap(); |
|
} |
|
); |
|
}, |
|
|
|
_recursivelyBecomeVisible: function (bounds, zoomLevel) { |
|
this._recursively(bounds, this._group._map.getMinZoom(), zoomLevel, null, function (c) { |
|
c.clusterShow(); |
|
}); |
|
}, |
|
|
|
_recursivelyAddChildrenToMap: function (startPos, zoomLevel, bounds) { |
|
this._recursively(bounds, this._group._map.getMinZoom() - 1, zoomLevel, |
|
function (c) { |
|
if (zoomLevel === c._zoom) { |
|
return; |
|
} |
|
|
|
//Add our child markers at startPos (so they can be animated out) |
|
for (var i = c._markers.length - 1; i >= 0; i--) { |
|
var nm = c._markers[i]; |
|
|
|
if (!bounds.contains(nm._latlng)) { |
|
continue; |
|
} |
|
|
|
if (startPos) { |
|
nm._backupLatlng = nm.getLatLng(); |
|
|
|
nm.setLatLng(startPos); |
|
if (nm.clusterHide) { |
|
nm.clusterHide(); |
|
} |
|
} |
|
|
|
c._group._featureGroup.addLayer(nm); |
|
} |
|
}, |
|
function (c) { |
|
c._addToMap(startPos); |
|
} |
|
); |
|
}, |
|
|
|
_recursivelyRestoreChildPositions: function (zoomLevel) { |
|
//Fix positions of child markers |
|
for (var i = this._markers.length - 1; i >= 0; i--) { |
|
var nm = this._markers[i]; |
|
if (nm._backupLatlng) { |
|
nm.setLatLng(nm._backupLatlng); |
|
delete nm._backupLatlng; |
|
} |
|
} |
|
|
|
if (zoomLevel - 1 === this._zoom) { |
|
//Reposition child clusters |
|
for (var j = this._childClusters.length - 1; j >= 0; j--) { |
|
this._childClusters[j]._restorePosition(); |
|
} |
|
} else { |
|
for (var k = this._childClusters.length - 1; k >= 0; k--) { |
|
this._childClusters[k]._recursivelyRestoreChildPositions(zoomLevel); |
|
} |
|
} |
|
}, |
|
|
|
_restorePosition: function () { |
|
if (this._backupLatlng) { |
|
this.setLatLng(this._backupLatlng); |
|
delete this._backupLatlng; |
|
} |
|
}, |
|
|
|
//exceptBounds: If set, don't remove any markers/clusters in it |
|
_recursivelyRemoveChildrenFromMap: function (previousBounds, mapMinZoom, zoomLevel, exceptBounds) { |
|
var m, i; |
|
this._recursively(previousBounds, mapMinZoom - 1, zoomLevel - 1, |
|
function (c) { |
|
//Remove markers at every level |
|
for (i = c._markers.length - 1; i >= 0; i--) { |
|
m = c._markers[i]; |
|
if (!exceptBounds || !exceptBounds.contains(m._latlng)) { |
|
c._group._featureGroup.removeLayer(m); |
|
if (m.clusterShow) { |
|
m.clusterShow(); |
|
} |
|
} |
|
} |
|
}, |
|
function (c) { |
|
//Remove child clusters at just the bottom level |
|
for (i = c._childClusters.length - 1; i >= 0; i--) { |
|
m = c._childClusters[i]; |
|
if (!exceptBounds || !exceptBounds.contains(m._latlng)) { |
|
c._group._featureGroup.removeLayer(m); |
|
if (m.clusterShow) { |
|
m.clusterShow(); |
|
} |
|
} |
|
} |
|
} |
|
); |
|
}, |
|
|
|
//Run the given functions recursively to this and child clusters |
|
// boundsToApplyTo: a L.LatLngBounds representing the bounds of what clusters to recurse in to |
|
// zoomLevelToStart: zoom level to start running functions (inclusive) |
|
// zoomLevelToStop: zoom level to stop running functions (inclusive) |
|
// runAtEveryLevel: function that takes an L.MarkerCluster as an argument that should be applied on every level |
|
// runAtBottomLevel: function that takes an L.MarkerCluster as an argument that should be applied at only the bottom level |
|
_recursively: function (boundsToApplyTo, zoomLevelToStart, zoomLevelToStop, runAtEveryLevel, runAtBottomLevel) { |
|
var childClusters = this._childClusters, |
|
zoom = this._zoom, |
|
i, c; |
|
|
|
if (zoomLevelToStart <= zoom) { |
|
if (runAtEveryLevel) { |
|
runAtEveryLevel(this); |
|
} |
|
if (runAtBottomLevel && zoom === zoomLevelToStop) { |
|
runAtBottomLevel(this); |
|
} |
|
} |
|
|
|
if (zoom < zoomLevelToStart || zoom < zoomLevelToStop) { |
|
for (i = childClusters.length - 1; i >= 0; i--) { |
|
c = childClusters[i]; |
|
if (c._boundsNeedUpdate) { |
|
c._recalculateBounds(); |
|
} |
|
if (boundsToApplyTo.intersects(c._bounds)) { |
|
c._recursively(boundsToApplyTo, zoomLevelToStart, zoomLevelToStop, runAtEveryLevel, runAtBottomLevel); |
|
} |
|
} |
|
} |
|
}, |
|
|
|
//Returns true if we are the parent of only one cluster and that cluster is the same as us |
|
_isSingleParent: function () { |
|
//Don't need to check this._markers as the rest won't work if there are any |
|
return this._childClusters.length > 0 && this._childClusters[0]._childCount === this._childCount; |
|
} |
|
}); |
|
|
|
/* |
|
* Extends L.Marker to include two extra methods: clusterHide and clusterShow. |
|
* |
|
* They work as setOpacity(0) and setOpacity(1) respectively, but |
|
* don't overwrite the options.opacity |
|
* |
|
*/ |
|
|
|
L.Marker.include({ |
|
clusterHide: function () { |
|
var backup = this.options.opacity; |
|
this.setOpacity(0); |
|
this.options.opacity = backup; |
|
return this; |
|
}, |
|
|
|
clusterShow: function () { |
|
return this.setOpacity(this.options.opacity); |
|
} |
|
}); |
|
|
|
L.DistanceGrid = function (cellSize) { |
|
this._cellSize = cellSize; |
|
this._sqCellSize = cellSize * cellSize; |
|
this._grid = {}; |
|
this._objectPoint = { }; |
|
}; |
|
|
|
L.DistanceGrid.prototype = { |
|
|
|
addObject: function (obj, point) { |
|
var x = this._getCoord(point.x), |
|
y = this._getCoord(point.y), |
|
grid = this._grid, |
|
row = grid[y] = grid[y] || {}, |
|
cell = row[x] = row[x] || [], |
|
stamp = L.Util.stamp(obj); |
|
|
|
this._objectPoint[stamp] = point; |
|
|
|
cell.push(obj); |
|
}, |
|
|
|
updateObject: function (obj, point) { |
|
this.removeObject(obj); |
|
this.addObject(obj, point); |
|
}, |
|
|
|
//Returns true if the object was found |
|
removeObject: function (obj, point) { |
|
var x = this._getCoord(point.x), |
|
y = this._getCoord(point.y), |
|
grid = this._grid, |
|
row = grid[y] = grid[y] || {}, |
|
cell = row[x] = row[x] || [], |
|
i, len; |
|
|
|
delete this._objectPoint[L.Util.stamp(obj)]; |
|
|
|
for (i = 0, len = cell.length; i < len; i++) { |
|
if (cell[i] === obj) { |
|
|
|
cell.splice(i, 1); |
|
|
|
if (len === 1) { |
|
delete row[x]; |
|
} |
|
|
|
return true; |
|
} |
|
} |
|
|
|
}, |
|
|
|
eachObject: function (fn, context) { |
|
var i, j, k, len, row, cell, removed, |
|
grid = this._grid; |
|
|
|
for (i in grid) { |
|
row = grid[i]; |
|
|
|
for (j in row) { |
|
cell = row[j]; |
|
|
|
for (k = 0, len = cell.length; k < len; k++) { |
|
removed = fn.call(context, cell[k]); |
|
if (removed) { |
|
k--; |
|
len--; |
|
} |
|
} |
|
} |
|
} |
|
}, |
|
|
|
getNearObject: function (point) { |
|
var x = this._getCoord(point.x), |
|
y = this._getCoord(point.y), |
|
i, j, k, row, cell, len, obj, dist, |
|
objectPoint = this._objectPoint, |
|
closestDistSq = this._sqCellSize, |
|
closest = null; |
|
|
|
for (i = y - 1; i <= y + 1; i++) { |
|
row = this._grid[i]; |
|
if (row) { |
|
|
|
for (j = x - 1; j <= x + 1; j++) { |
|
cell = row[j]; |
|
if (cell) { |
|
|
|
for (k = 0, len = cell.length; k < len; k++) { |
|
obj = cell[k]; |
|
dist = this._sqDist(objectPoint[L.Util.stamp(obj)], point); |
|
if (dist < closestDistSq || |
|
dist <= closestDistSq && closest === null) { |
|
closestDistSq = dist; |
|
closest = obj; |
|
} |
|
} |
|
} |
|
} |
|
} |
|
} |
|
return closest; |
|
}, |
|
|
|
_getCoord: function (x) { |
|
var coord = Math.floor(x / this._cellSize); |
|
return isFinite(coord) ? coord : x; |
|
}, |
|
|
|
_sqDist: function (p, p2) { |
|
var dx = p2.x - p.x, |
|
dy = p2.y - p.y; |
|
return dx * dx + dy * dy; |
|
} |
|
}; |
|
|
|
/* Copyright (c) 2012 the authors listed at the following URL, and/or |
|
the authors of referenced articles or incorporated external code: |
|
http://en.literateprograms.org/Quickhull_(Javascript)?action=history&offset=20120410175256 |
|
|
|
Permission is hereby granted, free of charge, to any person obtaining |
|
a copy of this software and associated documentation files (the |
|
"Software"), to deal in the Software without restriction, including |
|
without limitation the rights to use, copy, modify, merge, publish, |
|
distribute, sublicense, and/or sell copies of the Software, and to |
|
permit persons to whom the Software is furnished to do so, subject to |
|
the following conditions: |
|
|
|
The above copyright notice and this permission notice shall be |
|
included in all copies or substantial portions of the Software. |
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
|
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
|
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
|
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
|
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
|
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
|
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
|
|
|
Retrieved from: http://en.literateprograms.org/Quickhull_(Javascript)?oldid=18434 |
|
*/ |
|
|
|
(function () { |
|
L.QuickHull = { |
|
|
|
/* |
|
* @param {Object} cpt a point to be measured from the baseline |
|
* @param {Array} bl the baseline, as represented by a two-element |
|
* array of latlng objects. |
|
* @returns {Number} an approximate distance measure |
|
*/ |
|
getDistant: function (cpt, bl) { |
|
var vY = bl[1].lat - bl[0].lat, |
|
vX = bl[0].lng - bl[1].lng; |
|
return (vX * (cpt.lat - bl[0].lat) + vY * (cpt.lng - bl[0].lng)); |
|
}, |
|
|
|
/* |
|
* @param {Array} baseLine a two-element array of latlng objects |
|
* representing the baseline to project from |
|
* @param {Array} latLngs an array of latlng objects |
|
* @returns {Object} the maximum point and all new points to stay |
|
* in consideration for the hull. |
|
*/ |
|
findMostDistantPointFromBaseLine: function (baseLine, latLngs) { |
|
var maxD = 0, |
|
maxPt = null, |
|
newPoints = [], |
|
i, pt, d; |
|
|
|
for (i = latLngs.length - 1; i >= 0; i--) { |
|
pt = latLngs[i]; |
|
d = this.getDistant(pt, baseLine); |
|
|
|
if (d > 0) { |
|
newPoints.push(pt); |
|
} else { |
|
continue; |
|
} |
|
|
|
if (d > maxD) { |
|
maxD = d; |
|
maxPt = pt; |
|
} |
|
} |
|
|
|
return { maxPoint: maxPt, newPoints: newPoints }; |
|
}, |
|
|
|
|
|
/* |
|
* Given a baseline, compute the convex hull of latLngs as an array |
|
* of latLngs. |
|
* |
|
* @param {Array} latLngs |
|
* @returns {Array} |
|
*/ |
|
buildConvexHull: function (baseLine, latLngs) { |
|
var convexHullBaseLines = [], |
|
t = this.findMostDistantPointFromBaseLine(baseLine, latLngs); |
|
|
|
if (t.maxPoint) { // if there is still a point "outside" the base line |
|
convexHullBaseLines = |
|
convexHullBaseLines.concat( |
|
this.buildConvexHull([baseLine[0], t.maxPoint], t.newPoints) |
|
); |
|
convexHullBaseLines = |
|
convexHullBaseLines.concat( |
|
this.buildConvexHull([t.maxPoint, baseLine[1]], t.newPoints) |
|
); |
|
return convexHullBaseLines; |
|
} else { // if there is no more point "outside" the base line, the current base line is part of the convex hull |
|
return [baseLine[0]]; |
|
} |
|
}, |
|
|
|
/* |
|
* Given an array of latlngs, compute a convex hull as an array |
|
* of latlngs |
|
* |
|
* @param {Array} latLngs |
|
* @returns {Array} |
|
*/ |
|
getConvexHull: function (latLngs) { |
|
// find first baseline |
|
var maxLat = false, minLat = false, |
|
maxLng = false, minLng = false, |
|
maxLatPt = null, minLatPt = null, |
|
maxLngPt = null, minLngPt = null, |
|
maxPt = null, minPt = null, |
|
i; |
|
|
|
for (i = latLngs.length - 1; i >= 0; i--) { |
|
var pt = latLngs[i]; |
|
if (maxLat === false || pt.lat > maxLat) { |
|
maxLatPt = pt; |
|
maxLat = pt.lat; |
|
} |
|
if (minLat === false || pt.lat < minLat) { |
|
minLatPt = pt; |
|
minLat = pt.lat; |
|
} |
|
if (maxLng === false || pt.lng > maxLng) { |
|
maxLngPt = pt; |
|
maxLng = pt.lng; |
|
} |
|
if (minLng === false || pt.lng < minLng) { |
|
minLngPt = pt; |
|
minLng = pt.lng; |
|
} |
|
} |
|
|
|
if (minLat !== maxLat) { |
|
minPt = minLatPt; |
|
maxPt = maxLatPt; |
|
} else { |
|
minPt = minLngPt; |
|
maxPt = maxLngPt; |
|
} |
|
|
|
var ch = [].concat(this.buildConvexHull([minPt, maxPt], latLngs), |
|
this.buildConvexHull([maxPt, minPt], latLngs)); |
|
return ch; |
|
} |
|
}; |
|
}()); |
|
|
|
L.MarkerCluster.include({ |
|
getConvexHull: function () { |
|
var childMarkers = this.getAllChildMarkers(), |
|
points = [], |
|
p, i; |
|
|
|
for (i = childMarkers.length - 1; i >= 0; i--) { |
|
p = childMarkers[i].getLatLng(); |
|
points.push(p); |
|
} |
|
|
|
return L.QuickHull.getConvexHull(points); |
|
} |
|
}); |
|
|
|
//This code is 100% based on https://github.com/jawj/OverlappingMarkerSpiderfier-Leaflet |
|
//Huge thanks to jawj for implementing it first to make my job easy :-) |
|
|
|
L.MarkerCluster.include({ |
|
|
|
_2PI: Math.PI * 2, |
|
_circleFootSeparation: 25, //related to circumference of circle |
|
_circleStartAngle: 0, |
|
|
|
_spiralFootSeparation: 28, //related to size of spiral (experiment!) |
|
_spiralLengthStart: 11, |
|
_spiralLengthFactor: 5, |
|
|
|
_circleSpiralSwitchover: 9, //show spiral instead of circle from this marker count upwards. |
|
// 0 -> always spiral; Infinity -> always circle |
|
|
|
spiderfy: function () { |
|
if (this._group._spiderfied === this || this._group._inZoomAnimation) { |
|
return; |
|
} |
|
|
|
var childMarkers = this.getAllChildMarkers(null, true), |
|
group = this._group, |
|
map = group._map, |
|
center = map.latLngToLayerPoint(this._latlng), |
|
positions; |
|
|
|
this._group._unspiderfy(); |
|
this._group._spiderfied = this; |
|
|
|
//TODO Maybe: childMarkers order by distance to center |
|
|
|
if (childMarkers.length >= this._circleSpiralSwitchover) { |
|
positions = this._generatePointsSpiral(childMarkers.length, center); |
|
} else { |
|
center.y += 10; // Otherwise circles look wrong => hack for standard blue icon, renders differently for other icons. |
|
positions = this._generatePointsCircle(childMarkers.length, center); |
|
} |
|
|
|
this._animationSpiderfy(childMarkers, positions); |
|
}, |
|
|
|
unspiderfy: function (zoomDetails) { |
|
/// <param Name="zoomDetails">Argument from zoomanim if being called in a zoom animation or null otherwise</param> |
|
if (this._group._inZoomAnimation) { |
|
return; |
|
} |
|
this._animationUnspiderfy(zoomDetails); |
|
|
|
this._group._spiderfied = null; |
|
}, |
|
|
|
_generatePointsCircle: function (count, centerPt) { |
|
var circumference = this._group.options.spiderfyDistanceMultiplier * this._circleFootSeparation * (2 + count), |
|
legLength = circumference / this._2PI, //radius from circumference |
|
angleStep = this._2PI / count, |
|
res = [], |
|
i, angle; |
|
|
|
legLength = Math.max(legLength, 35); // Minimum distance to get outside the cluster icon. |
|
|
|
res.length = count; |
|
|
|
for (i = 0; i < count; i++) { // Clockwise, like spiral. |
|
angle = this._circleStartAngle + i * angleStep; |
|
res[i] = new L.Point(centerPt.x + legLength * Math.cos(angle), centerPt.y + legLength * Math.sin(angle))._round(); |
|
} |
|
|
|
return res; |
|
}, |
|
|
|
_generatePointsSpiral: function (count, centerPt) { |
|
var spiderfyDistanceMultiplier = this._group.options.spiderfyDistanceMultiplier, |
|
legLength = spiderfyDistanceMultiplier * this._spiralLengthStart, |
|
separation = spiderfyDistanceMultiplier * this._spiralFootSeparation, |
|
lengthFactor = spiderfyDistanceMultiplier * this._spiralLengthFactor * this._2PI, |
|
angle = 0, |
|
res = [], |
|
i; |
|
|
|
res.length = count; |
|
|
|
// Higher index, closer position to cluster center. |
|
for (i = count; i >= 0; i--) { |
|
// Skip the first position, so that we are already farther from center and we avoid |
|
// being under the default cluster icon (especially important for Circle Markers). |
|
if (i < count) { |
|
res[i] = new L.Point(centerPt.x + legLength * Math.cos(angle), centerPt.y + legLength * Math.sin(angle))._round(); |
|
} |
|
angle += separation / legLength + i * 0.0005; |
|
legLength += lengthFactor / angle; |
|
} |
|
return res; |
|
}, |
|
|
|
_noanimationUnspiderfy: function () { |
|
var group = this._group, |
|
map = group._map, |
|
fg = group._featureGroup, |
|
childMarkers = this.getAllChildMarkers(null, true), |
|
m, i; |
|
|
|
group._ignoreMove = true; |
|
|
|
this.setOpacity(1); |
|
for (i = childMarkers.length - 1; i >= 0; i--) { |
|
m = childMarkers[i]; |
|
|
|
fg.removeLayer(m); |
|
|
|
if (m._preSpiderfyLatlng) { |
|
m.setLatLng(m._preSpiderfyLatlng); |
|
delete m._preSpiderfyLatlng; |
|
} |
|
if (m.setZIndexOffset) { |
|
m.setZIndexOffset(0); |
|
} |
|
|
|
if (m._spiderLeg) { |
|
map.removeLayer(m._spiderLeg); |
|
delete m._spiderLeg; |
|
} |
|
} |
|
|
|
group.fire('unspiderfied', { |
|
cluster: this, |
|
markers: childMarkers |
|
}); |
|
group._ignoreMove = false; |
|
group._spiderfied = null; |
|
} |
|
}); |
|
|
|
//Non Animated versions of everything |
|
L.MarkerClusterNonAnimated = L.MarkerCluster.extend({ |
|
_animationSpiderfy: function (childMarkers, positions) { |
|
var group = this._group, |
|
map = group._map, |
|
fg = group._featureGroup, |
|
legOptions = this._group.options.spiderLegPolylineOptions, |
|
i, m, leg, newPos; |
|
|
|
group._ignoreMove = true; |
|
|
|
// Traverse in ascending order to make sure that inner circleMarkers are on top of further legs. Normal markers are re-ordered by newPosition. |
|
// The reverse order trick no longer improves performance on modern browsers. |
|
for (i = 0; i < childMarkers.length; i++) { |
|
newPos = map.layerPointToLatLng(positions[i]); |
|
m = childMarkers[i]; |
|
|
|
// Add the leg before the marker, so that in case the latter is a circleMarker, the leg is behind it. |
|
leg = new L.Polyline([this._latlng, newPos], legOptions); |
|
map.addLayer(leg); |
|
m._spiderLeg = leg; |
|
|
|
// Now add the marker. |
|
m._preSpiderfyLatlng = m._latlng; |
|
m.setLatLng(newPos); |
|
if (m.setZIndexOffset) { |
|
m.setZIndexOffset(1000000); //Make these appear on top of EVERYTHING |
|
} |
|
|
|
fg.addLayer(m); |
|
} |
|
this.setOpacity(0.3); |
|
|
|
group._ignoreMove = false; |
|
group.fire('spiderfied', { |
|
cluster: this, |
|
markers: childMarkers |
|
}); |
|
}, |
|
|
|
_animationUnspiderfy: function () { |
|
this._noanimationUnspiderfy(); |
|
} |
|
}); |
|
|
|
//Animated versions here |
|
L.MarkerCluster.include({ |
|
|
|
_animationSpiderfy: function (childMarkers, positions) { |
|
var me = this, |
|
group = this._group, |
|
map = group._map, |
|
fg = group._featureGroup, |
|
thisLayerLatLng = this._latlng, |
|
thisLayerPos = map.latLngToLayerPoint(thisLayerLatLng), |
|
svg = L.Path.SVG, |
|
legOptions = L.extend({}, this._group.options.spiderLegPolylineOptions), // Copy the options so that we can modify them for animation. |
|
finalLegOpacity = legOptions.opacity, |
|
i, m, leg, legPath, legLength, newPos; |
|
|
|
if (finalLegOpacity === undefined) { |
|
finalLegOpacity = L.MarkerClusterGroup.prototype.options.spiderLegPolylineOptions.opacity; |
|
} |
|
|
|
if (svg) { |
|
// If the initial opacity of the spider leg is not 0 then it appears before the animation starts. |
|
legOptions.opacity = 0; |
|
|
|
// Add the class for CSS transitions. |
|
legOptions.className = (legOptions.className || '') + ' leaflet-cluster-spider-leg'; |
|
} else { |
|
// Make sure we have a defined opacity. |
|
legOptions.opacity = finalLegOpacity; |
|
} |
|
|
|
group._ignoreMove = true; |
|
|
|
// Add markers and spider legs to map, hidden at our center point. |
|
// Traverse in ascending order to make sure that inner circleMarkers are on top of further legs. Normal markers are re-ordered by newPosition. |
|
// The reverse order trick no longer improves performance on modern browsers. |
|
for (i = 0; i < childMarkers.length; i++) { |
|
m = childMarkers[i]; |
|
|
|
newPos = map.layerPointToLatLng(positions[i]); |
|
|
|
// Add the leg before the marker, so that in case the latter is a circleMarker, the leg is behind it. |
|
leg = new L.Polyline([thisLayerLatLng, newPos], legOptions); |
|
map.addLayer(leg); |
|
m._spiderLeg = leg; |
|
|
|
// Explanations: https://jakearchibald.com/2013/animated-line-drawing-svg/ |
|
// In our case the transition property is declared in the CSS file. |
|
if (svg) { |
|
legPath = leg._path; |
|
legLength = legPath.getTotalLength() + 0.1; // Need a small extra length to avoid remaining dot in Firefox. |
|
legPath.style.strokeDasharray = legLength; // Just 1 length is enough, it will be duplicated. |
|
legPath.style.strokeDashoffset = legLength; |
|
} |
|
|
|
// If it is a marker, add it now and we'll animate it out |
|
if (m.setZIndexOffset) { |
|
m.setZIndexOffset(1000000); // Make normal markers appear on top of EVERYTHING |
|
} |
|
if (m.clusterHide) { |
|
m.clusterHide(); |
|
} |
|
|
|
// Vectors just get immediately added |
|
fg.addLayer(m); |
|
|
|
if (m._setPos) { |
|
m._setPos(thisLayerPos); |
|
} |
|
} |
|
|
|
group._forceLayout(); |
|
group._animationStart(); |
|
|
|
// Reveal markers and spider legs. |
|
for (i = childMarkers.length - 1; i >= 0; i--) { |
|
newPos = map.layerPointToLatLng(positions[i]); |
|
m = childMarkers[i]; |
|
|
|
//Move marker to new position |
|
m._preSpiderfyLatlng = m._latlng; |
|
m.setLatLng(newPos); |
|
|
|
if (m.clusterShow) { |
|
m.clusterShow(); |
|
} |
|
|
|
// Animate leg (animation is actually delegated to CSS transition). |
|
if (svg) { |
|
leg = m._spiderLeg; |
|
legPath = leg._path; |
|
legPath.style.strokeDashoffset = 0; |
|
//legPath.style.strokeOpacity = finalLegOpacity; |
|
leg.setStyle({opacity: finalLegOpacity}); |
|
} |
|
} |
|
this.setOpacity(0.3); |
|
|
|
group._ignoreMove = false; |
|
|
|
setTimeout(function () { |
|
group._animationEnd(); |
|
group.fire('spiderfied', { |
|
cluster: me, |
|
markers: childMarkers |
|
}); |
|
}, 200); |
|
}, |
|
|
|
_animationUnspiderfy: function (zoomDetails) { |
|
var me = this, |
|
group = this._group, |
|
map = group._map, |
|
fg = group._featureGroup, |
|
thisLayerPos = zoomDetails ? map._latLngToNewLayerPoint(this._latlng, zoomDetails.zoom, zoomDetails.center) : map.latLngToLayerPoint(this._latlng), |
|
childMarkers = this.getAllChildMarkers(null, true), |
|
svg = L.Path.SVG, |
|
m, i, leg, legPath, legLength, nonAnimatable; |
|
|
|
group._ignoreMove = true; |
|
group._animationStart(); |
|
|
|
//Make us visible and bring the child markers back in |
|
this.setOpacity(1); |
|
for (i = childMarkers.length - 1; i >= 0; i--) { |
|
m = childMarkers[i]; |
|
|
|
//Marker was added to us after we were spiderfied |
|
if (!m._preSpiderfyLatlng) { |
|
continue; |
|
} |
|
|
|
//Close any popup on the marker first, otherwise setting the location of the marker will make the map scroll |
|
m.closePopup(); |
|
|
|
//Fix up the location to the real one |
|
m.setLatLng(m._preSpiderfyLatlng); |
|
delete m._preSpiderfyLatlng; |
|
|
|
//Hack override the location to be our center |
|
nonAnimatable = true; |
|
if (m._setPos) { |
|
m._setPos(thisLayerPos); |
|
nonAnimatable = false; |
|
} |
|
if (m.clusterHide) { |
|
m.clusterHide(); |
|
nonAnimatable = false; |
|
} |
|
if (nonAnimatable) { |
|
fg.removeLayer(m); |
|
} |
|
|
|
// Animate the spider leg back in (animation is actually delegated to CSS transition). |
|
if (svg) { |
|
leg = m._spiderLeg; |
|
legPath = leg._path; |
|
legLength = legPath.getTotalLength() + 0.1; |
|
legPath.style.strokeDashoffset = legLength; |
|
leg.setStyle({opacity: 0}); |
|
} |
|
} |
|
|
|
group._ignoreMove = false; |
|
|
|
setTimeout(function () { |
|
//If we have only <= one child left then that marker will be shown on the map so don't remove it! |
|
var stillThereChildCount = 0; |
|
for (i = childMarkers.length - 1; i >= 0; i--) { |
|
m = childMarkers[i]; |
|
if (m._spiderLeg) { |
|
stillThereChildCount++; |
|
} |
|
} |
|
|
|
|
|
for (i = childMarkers.length - 1; i >= 0; i--) { |
|
m = childMarkers[i]; |
|
|
|
if (!m._spiderLeg) { //Has already been unspiderfied |
|
continue; |
|
} |
|
|
|
if (m.clusterShow) { |
|
m.clusterShow(); |
|
} |
|
if (m.setZIndexOffset) { |
|
m.setZIndexOffset(0); |
|
} |
|
|
|
if (stillThereChildCount > 1) { |
|
fg.removeLayer(m); |
|
} |
|
|
|
map.removeLayer(m._spiderLeg); |
|
delete m._spiderLeg; |
|
} |
|
group._animationEnd(); |
|
group.fire('unspiderfied', { |
|
cluster: me, |
|
markers: childMarkers |
|
}); |
|
}, 200); |
|
} |
|
}); |
|
|
|
|
|
L.MarkerClusterGroup.include({ |
|
//The MarkerCluster currently spiderfied (if any) |
|
_spiderfied: null, |
|
|
|
unspiderfy: function () { |
|
this._unspiderfy.apply(this, arguments); |
|
}, |
|
|
|
_spiderfierOnAdd: function () { |
|
this._map.on('click', this._unspiderfyWrapper, this); |
|
|
|
if (this._map.options.zoomAnimation) { |
|
this._map.on('zoomstart', this._unspiderfyZoomStart, this); |
|
} |
|
//Browsers without zoomAnimation or a big zoom don't fire zoomstart |
|
this._map.on('zoomend', this._noanimationUnspiderfy, this); |
|
|
|
if (!L.Browser.touch) { |
|
this._map.getRenderer(this); |
|
//Needs to happen in the pageload, not after, or animations don't work in webkit |
|
// http://stackoverflow.com/questions/8455200/svg-animate-with-dynamically-added-elements |
|
//Disable on touch browsers as the animation messes up on a touch zoom and isn't very noticable |
|
} |
|
}, |
|
|
|
_spiderfierOnRemove: function () { |
|
this._map.off('click', this._unspiderfyWrapper, this); |
|
this._map.off('zoomstart', this._unspiderfyZoomStart, this); |
|
this._map.off('zoomanim', this._unspiderfyZoomAnim, this); |
|
this._map.off('zoomend', this._noanimationUnspiderfy, this); |
|
|
|
//Ensure that markers are back where they should be |
|
// Use no animation to avoid a sticky leaflet-cluster-anim class on mapPane |
|
this._noanimationUnspiderfy(); |
|
}, |
|
|
|
//On zoom start we add a zoomanim handler so that we are guaranteed to be last (after markers are animated) |
|
//This means we can define the animation they do rather than Markers doing an animation to their actual location |
|
_unspiderfyZoomStart: function () { |
|
if (!this._map) { //May have been removed from the map by a zoomEnd handler |
|
return; |
|
} |
|
|
|
this._map.on('zoomanim', this._unspiderfyZoomAnim, this); |
|
}, |
|
|
|
_unspiderfyZoomAnim: function (zoomDetails) { |
|
//Wait until the first zoomanim after the user has finished touch-zooming before running the animation |
|
if (L.DomUtil.hasClass(this._map._mapPane, 'leaflet-touching')) { |
|
return; |
|
} |
|
|
|
this._map.off('zoomanim', this._unspiderfyZoomAnim, this); |
|
this._unspiderfy(zoomDetails); |
|
}, |
|
|
|
_unspiderfyWrapper: function () { |
|
/// <summary>_unspiderfy but passes no arguments</summary> |
|
this._unspiderfy(); |
|
}, |
|
|
|
_unspiderfy: function (zoomDetails) { |
|
if (this._spiderfied) { |
|
this._spiderfied.unspiderfy(zoomDetails); |
|
} |
|
}, |
|
|
|
_noanimationUnspiderfy: function () { |
|
if (this._spiderfied) { |
|
this._spiderfied._noanimationUnspiderfy(); |
|
} |
|
}, |
|
|
|
//If the given layer is currently being spiderfied then we unspiderfy it so it isn't on the map anymore etc |
|
_unspiderfyLayer: function (layer) { |
|
if (layer._spiderLeg) { |
|
this._featureGroup.removeLayer(layer); |
|
|
|
if (layer.clusterShow) { |
|
layer.clusterShow(); |
|
} |
|
//Position will be fixed up immediately in _animationUnspiderfy |
|
if (layer.setZIndexOffset) { |
|
layer.setZIndexOffset(0); |
|
} |
|
|
|
this._map.removeLayer(layer._spiderLeg); |
|
delete layer._spiderLeg; |
|
} |
|
} |
|
}); |
|
|
|
/** |
|
* Adds 1 public method to MCG and 1 to L.Marker to facilitate changing |
|
* markers' icon options and refreshing their icon and their parent clusters |
|
* accordingly (case where their iconCreateFunction uses data of childMarkers |
|
* to make up the cluster icon). |
|
*/ |
|
|
|
|
|
L.MarkerClusterGroup.include({ |
|
/** |
|
* Updates the icon of all clusters which are parents of the given marker(s). |
|
* In singleMarkerMode, also updates the given marker(s) icon. |
|
* @param layers L.MarkerClusterGroup|L.LayerGroup|Array(L.Marker)|Map(L.Marker)| |
|
* L.MarkerCluster|L.Marker (optional) list of markers (or single marker) whose parent |
|
* clusters need to be updated. If not provided, retrieves all child markers of this. |
|
* @returns {L.MarkerClusterGroup} |
|
*/ |
|
refreshClusters: function (layers) { |
|
if (!layers) { |
|
layers = this._topClusterLevel.getAllChildMarkers(); |
|
} else if (layers instanceof L.MarkerClusterGroup) { |
|
layers = layers._topClusterLevel.getAllChildMarkers(); |
|
} else if (layers instanceof L.LayerGroup) { |
|
layers = layers._layers; |
|
} else if (layers instanceof L.MarkerCluster) { |
|
layers = layers.getAllChildMarkers(); |
|
} else if (layers instanceof L.Marker) { |
|
layers = [layers]; |
|
} // else: must be an Array(L.Marker)|Map(L.Marker) |
|
this._flagParentsIconsNeedUpdate(layers); |
|
this._refreshClustersIcons(); |
|
|
|
// In case of singleMarkerMode, also re-draw the markers. |
|
if (this.options.singleMarkerMode) { |
|
this._refreshSingleMarkerModeMarkers(layers); |
|
} |
|
|
|
return this; |
|
}, |
|
|
|
/** |
|
* Simply flags all parent clusters of the given markers as having a "dirty" icon. |
|
* @param layers Array(L.Marker)|Map(L.Marker) list of markers. |
|
* @private |
|
*/ |
|
_flagParentsIconsNeedUpdate: function (layers) { |
|
var id, parent; |
|
|
|
// Assumes layers is an Array or an Object whose prototype is non-enumerable. |
|
for (id in layers) { |
|
// Flag parent clusters' icon as "dirty", all the way up. |
|
// Dumb process that flags multiple times upper parents, but still |
|
// much more efficient than trying to be smart and make short lists, |
|
// at least in the case of a hierarchy following a power law: |
|
// http://jsperf.com/flag-nodes-in-power-hierarchy/2 |
|
parent = layers[id].__parent; |
|
while (parent) { |
|
parent._iconNeedsUpdate = true; |
|
parent = parent.__parent; |
|
} |
|
} |
|
}, |
|
|
|
/** |
|
* Re-draws the icon of the supplied markers. |
|
* To be used in singleMarkerMode only. |
|
* @param layers Array(L.Marker)|Map(L.Marker) list of markers. |
|
* @private |
|
*/ |
|
_refreshSingleMarkerModeMarkers: function (layers) { |
|
var id, layer; |
|
|
|
for (id in layers) { |
|
layer = layers[id]; |
|
|
|
// Make sure we do not override markers that do not belong to THIS group. |
|
if (this.hasLayer(layer)) { |
|
// Need to re-create the icon first, then re-draw the marker. |
|
layer.setIcon(this._overrideMarkerIcon(layer)); |
|
} |
|
} |
|
} |
|
}); |
|
|
|
L.Marker.include({ |
|
/** |
|
* Updates the given options in the marker's icon and refreshes the marker. |
|
* @param options map object of icon options. |
|
* @param directlyRefreshClusters boolean (optional) true to trigger |
|
* MCG.refreshClustersOf() right away with this single marker. |
|
* @returns {L.Marker} |
|
*/ |
|
refreshIconOptions: function (options, directlyRefreshClusters) { |
|
var icon = this.options.icon; |
|
|
|
L.setOptions(icon, options); |
|
|
|
this.setIcon(icon); |
|
|
|
// Shortcut to refresh the associated MCG clusters right away. |
|
// To be used when refreshing a single marker. |
|
// Otherwise, better use MCG.refreshClusters() once at the end with |
|
// the list of modified markers. |
|
if (directlyRefreshClusters && this.__parent) { |
|
this.__parent._group.refreshClusters(this); |
|
} |
|
|
|
return this; |
|
} |
|
}); |
|
|
|
exports.MarkerClusterGroup = MarkerClusterGroup; |
|
exports.MarkerCluster = MarkerCluster; |
|
|
|
}))); |
|
//# sourceMappingURL=leaflet.markercluster-src.js.map |
|
|
|
</script> |
|
|
|
<script> |
|
|
|
|
|
//An extract of address points from the LINZ bulk extract: http://www.linz.govt.nz/survey-titles/landonline-data/landonline-bde |
|
//Should be this data set: http://data.linz.govt.nz/#/layer/779-nz-street-address-electoral/ |
|
|
|
var addressPoints = [ |
|
|
|
{{range .Users}} |
|
{{if .LocationCoordinate}} |
|
[parseFloat({{.LocationCoordinate}}.split(',')[0]) , parseFloat({{.LocationCoordinate}}.split(',')[1]), "{{avatar .}} {{.HomeLink}} {{.FullName}} <li> <div class=\"render-content markup\"> {{.Description | Str2html}} </div> </li>"], |
|
{{end}} |
|
{{else}} |
|
|
|
{{end}} |
|
]; |
|
|
|
</script> |
|
|
|
|
|
<div id="map"></div> |
|
<script type="text/javascript"> |
|
|
|
var tiles = L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', { |
|
maxZoom: 16, |
|
attribution: '© <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors, Points © 2012 LINZ' |
|
}), |
|
latlng = L.latLng(55.4, 37.3); |
|
|
|
var map = L.map('map', {center: latlng, zoom: 5, layers: [tiles]}); |
|
|
|
var markers = L.markerClusterGroup({ chunkedLoading: true }); |
|
|
|
for (var i = 0; i < addressPoints.length; i++) { |
|
var a = addressPoints[i]; |
|
var title = a[2]; |
|
var marker = L.marker(L.latLng(a[0], a[1]), { title: title }); |
|
marker.bindPopup(title); |
|
markers.addLayer(marker); |
|
} |
|
|
|
map.addLayer(markers); |
|
|
|
</script> |
|
|
|
</div> |
|
{{template "base/footer" .}}
|
|
|