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aurelien |
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/*
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Leaflet.markercluster, 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) 2012-2013, Dave Leaver, smartrak
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*/
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(function (window, document, undefined) {/*
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* L.MarkerClusterGroup extends L.FeatureGroup by clustering the markers contained within
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*/
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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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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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//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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// 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.on(L.FeatureGroup.EVENTS, this._propagateEvent, this);
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this._nonPointGroup = L.featureGroup();
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this._nonPointGroup.on(L.FeatureGroup.EVENTS, this._propagateEvent, 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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},
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addLayer: function (layer) {
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if (layer instanceof L.LayerGroup) {
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var array = [];
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for (var i in layer._layers) {
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array.push(layer._layers[i]);
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}
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return this.addLayers(array);
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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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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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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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//Work out what is visible
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var visibleLayer = layer,
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currentZoom = this._map.getZoom();
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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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{
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var array = [];
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for (var i in layer._layers) {
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array.push(layer._layers[i]);
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}
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return this.removeLayers(array);
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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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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);
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}
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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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if (this._featureGroup.hasLayer(layer)) {
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this._featureGroup.removeLayer(layer);
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if (layer.setOpacity) {
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layer.setOpacity(1);
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}
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}
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return this;
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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) {
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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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newMarkers, i, l, m;
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if (this._map) {
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var offset = 0,
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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 < layersArray.length; 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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//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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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 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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if (chunkProgress) {
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// report progress and time elapsed:
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chunkProgress(offset, layersArray.length, (new Date()).getTime() - started);
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}
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if (offset === layersArray.length) {
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//Update the icons of all those visible clusters that were affected
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this._featureGroup.eachLayer(function (c) {
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if (c instanceof L.MarkerCluster && c._iconNeedsUpdate) {
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c._updateIcon();
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}
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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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newMarkers = [];
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for (i = 0, l = layersArray.length; i < l; i++) {
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m = layersArray[i];
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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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if (this.hasLayer(m)) {
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continue;
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}
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newMarkers.push(m);
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}
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this._needsClustering = this._needsClustering.concat(newMarkers);
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}
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return this;
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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, l, m,
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fg = this._featureGroup,
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npg = this._nonPointGroup;
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if (!this._map) {
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for (i = 0, l = layersArray.length; i < l; i++) {
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m = layersArray[i];
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this._arraySplice(this._needsClustering, m);
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npg.removeLayer(m);
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}
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return this;
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}
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for (i = 0, l = layersArray.length; i < l; i++) {
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m = layersArray[i];
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if (!m.__parent) {
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npg.removeLayer(m);
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continue;
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}
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this._removeLayer(m, true, true);
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if (fg.hasLayer(m)) {
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fg.removeLayer(m);
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if (m.setOpacity) {
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m.setOpacity(1);
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}
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}
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}
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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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fg.eachLayer(function (c) {
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if (c instanceof L.MarkerCluster) {
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c._updateIcon();
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}
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});
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return this;
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},
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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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delete this._gridClusters;
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delete this._gridUnclustered;
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}
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if (this._noanimationUnspiderfy) {
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this._noanimationUnspiderfy();
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}
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//Remove all the visible layers
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this._featureGroup.clearLayers();
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this._nonPointGroup.clearLayers();
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this.eachLayer(function (marker) {
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delete marker.__parent;
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});
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if (this._map) {
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//Reset _topClusterLevel and the DistanceGrids
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this._generateInitialClusters();
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}
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return this;
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},
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//Override FeatureGroup.getBounds as it doesn't work
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getBounds: function () {
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var bounds = new L.LatLngBounds();
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if (this._topClusterLevel) {
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bounds.extend(this._topClusterLevel._bounds);
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}
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for (var i = this._needsClustering.length - 1; i >= 0; i--) {
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bounds.extend(this._needsClustering[i].getLatLng());
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}
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bounds.extend(this._nonPointGroup.getBounds());
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return bounds;
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},
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//Overrides LayerGroup.eachLayer
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eachLayer: function (method, context) {
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var markers = this._needsClustering.slice(),
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i;
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if (this._topClusterLevel) {
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this._topClusterLevel.getAllChildMarkers(markers);
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}
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for (i = markers.length - 1; i >= 0; i--) {
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method.call(context, markers[i]);
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}
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this._nonPointGroup.eachLayer(method, context);
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},
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//Overrides LayerGroup.getLayers
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getLayers: function () {
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var layers = [];
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this.eachLayer(function (l) {
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layers.push(l);
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});
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return layers;
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},
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//Overrides LayerGroup.getLayer, WARNING: Really bad performance
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getLayer: function (id) {
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var result = null;
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this.eachLayer(function (l) {
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if (L.stamp(l) === id) {
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result = l;
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}
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});
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return result;
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},
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383 |
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384 |
//Returns true if the given layer is in this MarkerClusterGroup
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385 |
hasLayer: function (layer) {
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386 |
if (!layer) {
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return false;
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}
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389 |
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|
390 |
var i, anArray = this._needsClustering;
|
|
|
391 |
|
|
|
392 |
for (i = anArray.length - 1; i >= 0; i--) {
|
|
|
393 |
if (anArray[i] === layer) {
|
|
|
394 |
return true;
|
|
|
395 |
}
|
|
|
396 |
}
|
|
|
397 |
|
|
|
398 |
anArray = this._needsRemoving;
|
|
|
399 |
for (i = anArray.length - 1; i >= 0; i--) {
|
|
|
400 |
if (anArray[i] === layer) {
|
|
|
401 |
return false;
|
|
|
402 |
}
|
|
|
403 |
}
|
|
|
404 |
|
|
|
405 |
return !!(layer.__parent && layer.__parent._group === this) || this._nonPointGroup.hasLayer(layer);
|
|
|
406 |
},
|
|
|
407 |
|
|
|
408 |
//Zoom down to show the given layer (spiderfying if necessary) then calls the callback
|
|
|
409 |
zoomToShowLayer: function (layer, callback) {
|
|
|
410 |
|
|
|
411 |
var showMarker = function () {
|
|
|
412 |
if ((layer._icon || layer.__parent._icon) && !this._inZoomAnimation) {
|
|
|
413 |
this._map.off('moveend', showMarker, this);
|
|
|
414 |
this.off('animationend', showMarker, this);
|
|
|
415 |
|
|
|
416 |
if (layer._icon) {
|
|
|
417 |
callback();
|
|
|
418 |
} else if (layer.__parent._icon) {
|
|
|
419 |
var afterSpiderfy = function () {
|
|
|
420 |
this.off('spiderfied', afterSpiderfy, this);
|
|
|
421 |
callback();
|
|
|
422 |
};
|
|
|
423 |
|
|
|
424 |
this.on('spiderfied', afterSpiderfy, this);
|
|
|
425 |
layer.__parent.spiderfy();
|
|
|
426 |
}
|
|
|
427 |
}
|
|
|
428 |
};
|
|
|
429 |
|
|
|
430 |
if (layer._icon && this._map.getBounds().contains(layer.getLatLng())) {
|
|
|
431 |
//Layer is visible ond on screen, immediate return
|
|
|
432 |
callback();
|
|
|
433 |
} else if (layer.__parent._zoom < this._map.getZoom()) {
|
|
|
434 |
//Layer should be visible at this zoom level. It must not be on screen so just pan over to it
|
|
|
435 |
this._map.on('moveend', showMarker, this);
|
|
|
436 |
this._map.panTo(layer.getLatLng());
|
|
|
437 |
} else {
|
|
|
438 |
var moveStart = function () {
|
|
|
439 |
this._map.off('movestart', moveStart, this);
|
|
|
440 |
moveStart = null;
|
|
|
441 |
};
|
|
|
442 |
|
|
|
443 |
this._map.on('movestart', moveStart, this);
|
|
|
444 |
this._map.on('moveend', showMarker, this);
|
|
|
445 |
this.on('animationend', showMarker, this);
|
|
|
446 |
layer.__parent.zoomToBounds();
|
|
|
447 |
|
|
|
448 |
if (moveStart) {
|
|
|
449 |
//Never started moving, must already be there, probably need clustering however
|
|
|
450 |
showMarker.call(this);
|
|
|
451 |
}
|
|
|
452 |
}
|
|
|
453 |
},
|
|
|
454 |
|
|
|
455 |
//Overrides FeatureGroup.onAdd
|
|
|
456 |
onAdd: function (map) {
|
|
|
457 |
this._map = map;
|
|
|
458 |
var i, l, layer;
|
|
|
459 |
|
|
|
460 |
if (!isFinite(this._map.getMaxZoom())) {
|
|
|
461 |
throw "Map has no maxZoom specified";
|
|
|
462 |
}
|
|
|
463 |
|
|
|
464 |
this._featureGroup.onAdd(map);
|
|
|
465 |
this._nonPointGroup.onAdd(map);
|
|
|
466 |
|
|
|
467 |
if (!this._gridClusters) {
|
|
|
468 |
this._generateInitialClusters();
|
|
|
469 |
}
|
|
|
470 |
|
|
|
471 |
for (i = 0, l = this._needsRemoving.length; i < l; i++) {
|
|
|
472 |
layer = this._needsRemoving[i];
|
|
|
473 |
this._removeLayer(layer, true);
|
|
|
474 |
}
|
|
|
475 |
this._needsRemoving = [];
|
|
|
476 |
|
|
|
477 |
//Remember the current zoom level and bounds
|
|
|
478 |
this._zoom = this._map.getZoom();
|
|
|
479 |
this._currentShownBounds = this._getExpandedVisibleBounds();
|
|
|
480 |
|
|
|
481 |
this._map.on('zoomend', this._zoomEnd, this);
|
|
|
482 |
this._map.on('moveend', this._moveEnd, this);
|
|
|
483 |
|
|
|
484 |
if (this._spiderfierOnAdd) { //TODO FIXME: Not sure how to have spiderfier add something on here nicely
|
|
|
485 |
this._spiderfierOnAdd();
|
|
|
486 |
}
|
|
|
487 |
|
|
|
488 |
this._bindEvents();
|
|
|
489 |
|
|
|
490 |
//Actually add our markers to the map:
|
|
|
491 |
l = this._needsClustering;
|
|
|
492 |
this._needsClustering = [];
|
|
|
493 |
this.addLayers(l);
|
|
|
494 |
},
|
|
|
495 |
|
|
|
496 |
//Overrides FeatureGroup.onRemove
|
|
|
497 |
onRemove: function (map) {
|
|
|
498 |
map.off('zoomend', this._zoomEnd, this);
|
|
|
499 |
map.off('moveend', this._moveEnd, this);
|
|
|
500 |
|
|
|
501 |
this._unbindEvents();
|
|
|
502 |
|
|
|
503 |
//In case we are in a cluster animation
|
|
|
504 |
this._map._mapPane.className = this._map._mapPane.className.replace(' leaflet-cluster-anim', '');
|
|
|
505 |
|
|
|
506 |
if (this._spiderfierOnRemove) { //TODO FIXME: Not sure how to have spiderfier add something on here nicely
|
|
|
507 |
this._spiderfierOnRemove();
|
|
|
508 |
}
|
|
|
509 |
|
|
|
510 |
|
|
|
511 |
|
|
|
512 |
//Clean up all the layers we added to the map
|
|
|
513 |
this._hideCoverage();
|
|
|
514 |
this._featureGroup.onRemove(map);
|
|
|
515 |
this._nonPointGroup.onRemove(map);
|
|
|
516 |
|
|
|
517 |
this._featureGroup.clearLayers();
|
|
|
518 |
|
|
|
519 |
this._map = null;
|
|
|
520 |
},
|
|
|
521 |
|
|
|
522 |
getVisibleParent: function (marker) {
|
|
|
523 |
var vMarker = marker;
|
|
|
524 |
while (vMarker && !vMarker._icon) {
|
|
|
525 |
vMarker = vMarker.__parent;
|
|
|
526 |
}
|
|
|
527 |
return vMarker || null;
|
|
|
528 |
},
|
|
|
529 |
|
|
|
530 |
//Remove the given object from the given array
|
|
|
531 |
_arraySplice: function (anArray, obj) {
|
|
|
532 |
for (var i = anArray.length - 1; i >= 0; i--) {
|
|
|
533 |
if (anArray[i] === obj) {
|
|
|
534 |
anArray.splice(i, 1);
|
|
|
535 |
return true;
|
|
|
536 |
}
|
|
|
537 |
}
|
|
|
538 |
},
|
|
|
539 |
|
|
|
540 |
//Internal function for removing a marker from everything.
|
|
|
541 |
//dontUpdateMap: set to true if you will handle updating the map manually (for bulk functions)
|
|
|
542 |
_removeLayer: function (marker, removeFromDistanceGrid, dontUpdateMap) {
|
|
|
543 |
var gridClusters = this._gridClusters,
|
|
|
544 |
gridUnclustered = this._gridUnclustered,
|
|
|
545 |
fg = this._featureGroup,
|
|
|
546 |
map = this._map;
|
|
|
547 |
|
|
|
548 |
//Remove the marker from distance clusters it might be in
|
|
|
549 |
if (removeFromDistanceGrid) {
|
|
|
550 |
for (var z = this._maxZoom; z >= 0; z--) {
|
|
|
551 |
if (!gridUnclustered[z].removeObject(marker, map.project(marker.getLatLng(), z))) {
|
|
|
552 |
break;
|
|
|
553 |
}
|
|
|
554 |
}
|
|
|
555 |
}
|
|
|
556 |
|
|
|
557 |
//Work our way up the clusters removing them as we go if required
|
|
|
558 |
var cluster = marker.__parent,
|
|
|
559 |
markers = cluster._markers,
|
|
|
560 |
otherMarker;
|
|
|
561 |
|
|
|
562 |
//Remove the marker from the immediate parents marker list
|
|
|
563 |
this._arraySplice(markers, marker);
|
|
|
564 |
|
|
|
565 |
while (cluster) {
|
|
|
566 |
cluster._childCount--;
|
|
|
567 |
|
|
|
568 |
if (cluster._zoom < 0) {
|
|
|
569 |
//Top level, do nothing
|
|
|
570 |
break;
|
|
|
571 |
} else if (removeFromDistanceGrid && cluster._childCount <= 1) { //Cluster no longer required
|
|
|
572 |
//We need to push the other marker up to the parent
|
|
|
573 |
otherMarker = cluster._markers[0] === marker ? cluster._markers[1] : cluster._markers[0];
|
|
|
574 |
|
|
|
575 |
//Update distance grid
|
|
|
576 |
gridClusters[cluster._zoom].removeObject(cluster, map.project(cluster._cLatLng, cluster._zoom));
|
|
|
577 |
gridUnclustered[cluster._zoom].addObject(otherMarker, map.project(otherMarker.getLatLng(), cluster._zoom));
|
|
|
578 |
|
|
|
579 |
//Move otherMarker up to parent
|
|
|
580 |
this._arraySplice(cluster.__parent._childClusters, cluster);
|
|
|
581 |
cluster.__parent._markers.push(otherMarker);
|
|
|
582 |
otherMarker.__parent = cluster.__parent;
|
|
|
583 |
|
|
|
584 |
if (cluster._icon) {
|
|
|
585 |
//Cluster is currently on the map, need to put the marker on the map instead
|
|
|
586 |
fg.removeLayer(cluster);
|
|
|
587 |
if (!dontUpdateMap) {
|
|
|
588 |
fg.addLayer(otherMarker);
|
|
|
589 |
}
|
|
|
590 |
}
|
|
|
591 |
} else {
|
|
|
592 |
cluster._recalculateBounds();
|
|
|
593 |
if (!dontUpdateMap || !cluster._icon) {
|
|
|
594 |
cluster._updateIcon();
|
|
|
595 |
}
|
|
|
596 |
}
|
|
|
597 |
|
|
|
598 |
cluster = cluster.__parent;
|
|
|
599 |
}
|
|
|
600 |
|
|
|
601 |
delete marker.__parent;
|
|
|
602 |
},
|
|
|
603 |
|
|
|
604 |
_isOrIsParent: function (el, oel) {
|
|
|
605 |
while (oel) {
|
|
|
606 |
if (el === oel) {
|
|
|
607 |
return true;
|
|
|
608 |
}
|
|
|
609 |
oel = oel.parentNode;
|
|
|
610 |
}
|
|
|
611 |
return false;
|
|
|
612 |
},
|
|
|
613 |
|
|
|
614 |
_propagateEvent: function (e) {
|
|
|
615 |
if (e.layer instanceof L.MarkerCluster) {
|
|
|
616 |
//Prevent multiple clustermouseover/off events if the icon is made up of stacked divs (Doesn't work in ie <= 8, no relatedTarget)
|
|
|
617 |
if (e.originalEvent && this._isOrIsParent(e.layer._icon, e.originalEvent.relatedTarget)) {
|
|
|
618 |
return;
|
|
|
619 |
}
|
|
|
620 |
e.type = 'cluster' + e.type;
|
|
|
621 |
}
|
|
|
622 |
|
|
|
623 |
this.fire(e.type, e);
|
|
|
624 |
},
|
|
|
625 |
|
|
|
626 |
//Default functionality
|
|
|
627 |
_defaultIconCreateFunction: function (cluster) {
|
|
|
628 |
var childCount = cluster.getChildCount();
|
|
|
629 |
|
|
|
630 |
var c = ' marker-cluster-';
|
|
|
631 |
if (childCount < 10) {
|
|
|
632 |
c += 'small';
|
|
|
633 |
} else if (childCount < 100) {
|
|
|
634 |
c += 'medium';
|
|
|
635 |
} else {
|
|
|
636 |
c += 'large';
|
|
|
637 |
}
|
|
|
638 |
|
|
|
639 |
return new L.DivIcon({ html: '<div><span>' + childCount + '</span></div>', className: 'marker-cluster' + c, iconSize: new L.Point(40, 40) });
|
|
|
640 |
},
|
|
|
641 |
|
|
|
642 |
_bindEvents: function () {
|
|
|
643 |
var map = this._map,
|
|
|
644 |
spiderfyOnMaxZoom = this.options.spiderfyOnMaxZoom,
|
|
|
645 |
showCoverageOnHover = this.options.showCoverageOnHover,
|
|
|
646 |
zoomToBoundsOnClick = this.options.zoomToBoundsOnClick;
|
|
|
647 |
|
|
|
648 |
//Zoom on cluster click or spiderfy if we are at the lowest level
|
|
|
649 |
if (spiderfyOnMaxZoom || zoomToBoundsOnClick) {
|
|
|
650 |
this.on('clusterclick', this._zoomOrSpiderfy, this);
|
|
|
651 |
}
|
|
|
652 |
|
|
|
653 |
//Show convex hull (boundary) polygon on mouse over
|
|
|
654 |
if (showCoverageOnHover) {
|
|
|
655 |
this.on('clustermouseover', this._showCoverage, this);
|
|
|
656 |
this.on('clustermouseout', this._hideCoverage, this);
|
|
|
657 |
map.on('zoomend', this._hideCoverage, this);
|
|
|
658 |
}
|
|
|
659 |
},
|
|
|
660 |
|
|
|
661 |
_zoomOrSpiderfy: function (e) {
|
|
|
662 |
var map = this._map;
|
|
|
663 |
if (map.getMaxZoom() === map.getZoom()) {
|
|
|
664 |
if (this.options.spiderfyOnMaxZoom) {
|
|
|
665 |
e.layer.spiderfy();
|
|
|
666 |
}
|
|
|
667 |
} else if (this.options.zoomToBoundsOnClick) {
|
|
|
668 |
e.layer.zoomToBounds();
|
|
|
669 |
}
|
|
|
670 |
|
|
|
671 |
// Focus the map again for keyboard users.
|
|
|
672 |
if (e.originalEvent && e.originalEvent.keyCode === 13) {
|
|
|
673 |
map._container.focus();
|
|
|
674 |
}
|
|
|
675 |
},
|
|
|
676 |
|
|
|
677 |
_showCoverage: function (e) {
|
|
|
678 |
var map = this._map;
|
|
|
679 |
if (this._inZoomAnimation) {
|
|
|
680 |
return;
|
|
|
681 |
}
|
|
|
682 |
if (this._shownPolygon) {
|
|
|
683 |
map.removeLayer(this._shownPolygon);
|
|
|
684 |
}
|
|
|
685 |
if (e.layer.getChildCount() > 2 && e.layer !== this._spiderfied) {
|
|
|
686 |
this._shownPolygon = new L.Polygon(e.layer.getConvexHull(), this.options.polygonOptions);
|
|
|
687 |
map.addLayer(this._shownPolygon);
|
|
|
688 |
}
|
|
|
689 |
},
|
|
|
690 |
|
|
|
691 |
_hideCoverage: function () {
|
|
|
692 |
if (this._shownPolygon) {
|
|
|
693 |
this._map.removeLayer(this._shownPolygon);
|
|
|
694 |
this._shownPolygon = null;
|
|
|
695 |
}
|
|
|
696 |
},
|
|
|
697 |
|
|
|
698 |
_unbindEvents: function () {
|
|
|
699 |
var spiderfyOnMaxZoom = this.options.spiderfyOnMaxZoom,
|
|
|
700 |
showCoverageOnHover = this.options.showCoverageOnHover,
|
|
|
701 |
zoomToBoundsOnClick = this.options.zoomToBoundsOnClick,
|
|
|
702 |
map = this._map;
|
|
|
703 |
|
|
|
704 |
if (spiderfyOnMaxZoom || zoomToBoundsOnClick) {
|
|
|
705 |
this.off('clusterclick', this._zoomOrSpiderfy, this);
|
|
|
706 |
}
|
|
|
707 |
if (showCoverageOnHover) {
|
|
|
708 |
this.off('clustermouseover', this._showCoverage, this);
|
|
|
709 |
this.off('clustermouseout', this._hideCoverage, this);
|
|
|
710 |
map.off('zoomend', this._hideCoverage, this);
|
|
|
711 |
}
|
|
|
712 |
},
|
|
|
713 |
|
|
|
714 |
_zoomEnd: function () {
|
|
|
715 |
if (!this._map) { //May have been removed from the map by a zoomEnd handler
|
|
|
716 |
return;
|
|
|
717 |
}
|
|
|
718 |
this._mergeSplitClusters();
|
|
|
719 |
|
|
|
720 |
this._zoom = this._map._zoom;
|
|
|
721 |
this._currentShownBounds = this._getExpandedVisibleBounds();
|
|
|
722 |
},
|
|
|
723 |
|
|
|
724 |
_moveEnd: function () {
|
|
|
725 |
if (this._inZoomAnimation) {
|
|
|
726 |
return;
|
|
|
727 |
}
|
|
|
728 |
|
|
|
729 |
var newBounds = this._getExpandedVisibleBounds();
|
|
|
730 |
|
|
|
731 |
this._topClusterLevel._recursivelyRemoveChildrenFromMap(this._currentShownBounds, this._zoom, newBounds);
|
|
|
732 |
this._topClusterLevel._recursivelyAddChildrenToMap(null, this._map._zoom, newBounds);
|
|
|
733 |
|
|
|
734 |
this._currentShownBounds = newBounds;
|
|
|
735 |
return;
|
|
|
736 |
},
|
|
|
737 |
|
|
|
738 |
_generateInitialClusters: function () {
|
|
|
739 |
var maxZoom = this._map.getMaxZoom(),
|
|
|
740 |
radius = this.options.maxClusterRadius,
|
|
|
741 |
radiusFn = radius;
|
|
|
742 |
|
|
|
743 |
//If we just set maxClusterRadius to a single number, we need to create
|
|
|
744 |
//a simple function to return that number. Otherwise, we just have to
|
|
|
745 |
//use the function we've passed in.
|
|
|
746 |
if (typeof radius !== "function") {
|
|
|
747 |
radiusFn = function () { return radius; };
|
|
|
748 |
}
|
|
|
749 |
|
|
|
750 |
if (this.options.disableClusteringAtZoom) {
|
|
|
751 |
maxZoom = this.options.disableClusteringAtZoom - 1;
|
|
|
752 |
}
|
|
|
753 |
this._maxZoom = maxZoom;
|
|
|
754 |
this._gridClusters = {};
|
|
|
755 |
this._gridUnclustered = {};
|
|
|
756 |
|
|
|
757 |
//Set up DistanceGrids for each zoom
|
|
|
758 |
for (var zoom = maxZoom; zoom >= 0; zoom--) {
|
|
|
759 |
this._gridClusters[zoom] = new L.DistanceGrid(radiusFn(zoom));
|
|
|
760 |
this._gridUnclustered[zoom] = new L.DistanceGrid(radiusFn(zoom));
|
|
|
761 |
}
|
|
|
762 |
|
|
|
763 |
this._topClusterLevel = new L.MarkerCluster(this, -1);
|
|
|
764 |
},
|
|
|
765 |
|
|
|
766 |
//Zoom: Zoom to start adding at (Pass this._maxZoom to start at the bottom)
|
|
|
767 |
_addLayer: function (layer, zoom) {
|
|
|
768 |
var gridClusters = this._gridClusters,
|
|
|
769 |
gridUnclustered = this._gridUnclustered,
|
|
|
770 |
markerPoint, z;
|
|
|
771 |
|
|
|
772 |
if (this.options.singleMarkerMode) {
|
|
|
773 |
layer.options.icon = this.options.iconCreateFunction({
|
|
|
774 |
getChildCount: function () {
|
|
|
775 |
return 1;
|
|
|
776 |
},
|
|
|
777 |
getAllChildMarkers: function () {
|
|
|
778 |
return [layer];
|
|
|
779 |
}
|
|
|
780 |
});
|
|
|
781 |
}
|
|
|
782 |
|
|
|
783 |
//Find the lowest zoom level to slot this one in
|
|
|
784 |
for (; zoom >= 0; zoom--) {
|
|
|
785 |
markerPoint = this._map.project(layer.getLatLng(), zoom); // calculate pixel position
|
|
|
786 |
|
|
|
787 |
//Try find a cluster close by
|
|
|
788 |
var closest = gridClusters[zoom].getNearObject(markerPoint);
|
|
|
789 |
if (closest) {
|
|
|
790 |
closest._addChild(layer);
|
|
|
791 |
layer.__parent = closest;
|
|
|
792 |
return;
|
|
|
793 |
}
|
|
|
794 |
|
|
|
795 |
//Try find a marker close by to form a new cluster with
|
|
|
796 |
closest = gridUnclustered[zoom].getNearObject(markerPoint);
|
|
|
797 |
if (closest) {
|
|
|
798 |
var parent = closest.__parent;
|
|
|
799 |
if (parent) {
|
|
|
800 |
this._removeLayer(closest, false);
|
|
|
801 |
}
|
|
|
802 |
|
|
|
803 |
//Create new cluster with these 2 in it
|
|
|
804 |
|
|
|
805 |
var newCluster = new L.MarkerCluster(this, zoom, closest, layer);
|
|
|
806 |
gridClusters[zoom].addObject(newCluster, this._map.project(newCluster._cLatLng, zoom));
|
|
|
807 |
closest.__parent = newCluster;
|
|
|
808 |
layer.__parent = newCluster;
|
|
|
809 |
|
|
|
810 |
//First create any new intermediate parent clusters that don't exist
|
|
|
811 |
var lastParent = newCluster;
|
|
|
812 |
for (z = zoom - 1; z > parent._zoom; z--) {
|
|
|
813 |
lastParent = new L.MarkerCluster(this, z, lastParent);
|
|
|
814 |
gridClusters[z].addObject(lastParent, this._map.project(closest.getLatLng(), z));
|
|
|
815 |
}
|
|
|
816 |
parent._addChild(lastParent);
|
|
|
817 |
|
|
|
818 |
//Remove closest from this zoom level and any above that it is in, replace with newCluster
|
|
|
819 |
for (z = zoom; z >= 0; z--) {
|
|
|
820 |
if (!gridUnclustered[z].removeObject(closest, this._map.project(closest.getLatLng(), z))) {
|
|
|
821 |
break;
|
|
|
822 |
}
|
|
|
823 |
}
|
|
|
824 |
|
|
|
825 |
return;
|
|
|
826 |
}
|
|
|
827 |
|
|
|
828 |
//Didn't manage to cluster in at this zoom, record us as a marker here and continue upwards
|
|
|
829 |
gridUnclustered[zoom].addObject(layer, markerPoint);
|
|
|
830 |
}
|
|
|
831 |
|
|
|
832 |
//Didn't get in anything, add us to the top
|
|
|
833 |
this._topClusterLevel._addChild(layer);
|
|
|
834 |
layer.__parent = this._topClusterLevel;
|
|
|
835 |
return;
|
|
|
836 |
},
|
|
|
837 |
|
|
|
838 |
//Enqueue code to fire after the marker expand/contract has happened
|
|
|
839 |
_enqueue: function (fn) {
|
|
|
840 |
this._queue.push(fn);
|
|
|
841 |
if (!this._queueTimeout) {
|
|
|
842 |
this._queueTimeout = setTimeout(L.bind(this._processQueue, this), 300);
|
|
|
843 |
}
|
|
|
844 |
},
|
|
|
845 |
_processQueue: function () {
|
|
|
846 |
for (var i = 0; i < this._queue.length; i++) {
|
|
|
847 |
this._queue[i].call(this);
|
|
|
848 |
}
|
|
|
849 |
this._queue.length = 0;
|
|
|
850 |
clearTimeout(this._queueTimeout);
|
|
|
851 |
this._queueTimeout = null;
|
|
|
852 |
},
|
|
|
853 |
|
|
|
854 |
//Merge and split any existing clusters that are too big or small
|
|
|
855 |
_mergeSplitClusters: function () {
|
|
|
856 |
|
|
|
857 |
//Incase we are starting to split before the animation finished
|
|
|
858 |
this._processQueue();
|
|
|
859 |
|
|
|
860 |
if (this._zoom < this._map._zoom && this._currentShownBounds.intersects(this._getExpandedVisibleBounds())) { //Zoom in, split
|
|
|
861 |
this._animationStart();
|
|
|
862 |
//Remove clusters now off screen
|
|
|
863 |
this._topClusterLevel._recursivelyRemoveChildrenFromMap(this._currentShownBounds, this._zoom, this._getExpandedVisibleBounds());
|
|
|
864 |
|
|
|
865 |
this._animationZoomIn(this._zoom, this._map._zoom);
|
|
|
866 |
|
|
|
867 |
} else if (this._zoom > this._map._zoom) { //Zoom out, merge
|
|
|
868 |
this._animationStart();
|
|
|
869 |
|
|
|
870 |
this._animationZoomOut(this._zoom, this._map._zoom);
|
|
|
871 |
} else {
|
|
|
872 |
this._moveEnd();
|
|
|
873 |
}
|
|
|
874 |
},
|
|
|
875 |
|
|
|
876 |
//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)
|
|
|
877 |
_getExpandedVisibleBounds: function () {
|
|
|
878 |
if (!this.options.removeOutsideVisibleBounds) {
|
|
|
879 |
return this.getBounds();
|
|
|
880 |
}
|
|
|
881 |
|
|
|
882 |
var map = this._map,
|
|
|
883 |
bounds = map.getBounds(),
|
|
|
884 |
sw = bounds._southWest,
|
|
|
885 |
ne = bounds._northEast,
|
|
|
886 |
latDiff = L.Browser.mobile ? 0 : Math.abs(sw.lat - ne.lat),
|
|
|
887 |
lngDiff = L.Browser.mobile ? 0 : Math.abs(sw.lng - ne.lng);
|
|
|
888 |
|
|
|
889 |
return new L.LatLngBounds(
|
|
|
890 |
new L.LatLng(sw.lat - latDiff, sw.lng - lngDiff, true),
|
|
|
891 |
new L.LatLng(ne.lat + latDiff, ne.lng + lngDiff, true));
|
|
|
892 |
},
|
|
|
893 |
|
|
|
894 |
//Shared animation code
|
|
|
895 |
_animationAddLayerNonAnimated: function (layer, newCluster) {
|
|
|
896 |
if (newCluster === layer) {
|
|
|
897 |
this._featureGroup.addLayer(layer);
|
|
|
898 |
} else if (newCluster._childCount === 2) {
|
|
|
899 |
newCluster._addToMap();
|
|
|
900 |
|
|
|
901 |
var markers = newCluster.getAllChildMarkers();
|
|
|
902 |
this._featureGroup.removeLayer(markers[0]);
|
|
|
903 |
this._featureGroup.removeLayer(markers[1]);
|
|
|
904 |
} else {
|
|
|
905 |
newCluster._updateIcon();
|
|
|
906 |
}
|
|
|
907 |
}
|
|
|
908 |
});
|
|
|
909 |
|
|
|
910 |
L.MarkerClusterGroup.include(!L.DomUtil.TRANSITION ? {
|
|
|
911 |
|
|
|
912 |
//Non Animated versions of everything
|
|
|
913 |
_animationStart: function () {
|
|
|
914 |
//Do nothing...
|
|
|
915 |
},
|
|
|
916 |
_animationZoomIn: function (previousZoomLevel, newZoomLevel) {
|
|
|
917 |
this._topClusterLevel._recursivelyRemoveChildrenFromMap(this._currentShownBounds, previousZoomLevel);
|
|
|
918 |
this._topClusterLevel._recursivelyAddChildrenToMap(null, newZoomLevel, this._getExpandedVisibleBounds());
|
|
|
919 |
|
|
|
920 |
//We didn't actually animate, but we use this event to mean "clustering animations have finished"
|
|
|
921 |
this.fire('animationend');
|
|
|
922 |
},
|
|
|
923 |
_animationZoomOut: function (previousZoomLevel, newZoomLevel) {
|
|
|
924 |
this._topClusterLevel._recursivelyRemoveChildrenFromMap(this._currentShownBounds, previousZoomLevel);
|
|
|
925 |
this._topClusterLevel._recursivelyAddChildrenToMap(null, newZoomLevel, this._getExpandedVisibleBounds());
|
|
|
926 |
|
|
|
927 |
//We didn't actually animate, but we use this event to mean "clustering animations have finished"
|
|
|
928 |
this.fire('animationend');
|
|
|
929 |
},
|
|
|
930 |
_animationAddLayer: function (layer, newCluster) {
|
|
|
931 |
this._animationAddLayerNonAnimated(layer, newCluster);
|
|
|
932 |
}
|
|
|
933 |
} : {
|
|
|
934 |
|
|
|
935 |
//Animated versions here
|
|
|
936 |
_animationStart: function () {
|
|
|
937 |
this._map._mapPane.className += ' leaflet-cluster-anim';
|
|
|
938 |
this._inZoomAnimation++;
|
|
|
939 |
},
|
|
|
940 |
_animationEnd: function () {
|
|
|
941 |
if (this._map) {
|
|
|
942 |
this._map._mapPane.className = this._map._mapPane.className.replace(' leaflet-cluster-anim', '');
|
|
|
943 |
}
|
|
|
944 |
this._inZoomAnimation--;
|
|
|
945 |
this.fire('animationend');
|
|
|
946 |
},
|
|
|
947 |
_animationZoomIn: function (previousZoomLevel, newZoomLevel) {
|
|
|
948 |
var bounds = this._getExpandedVisibleBounds(),
|
|
|
949 |
fg = this._featureGroup,
|
|
|
950 |
i;
|
|
|
951 |
|
|
|
952 |
//Add all children of current clusters to map and remove those clusters from map
|
|
|
953 |
this._topClusterLevel._recursively(bounds, previousZoomLevel, 0, function (c) {
|
|
|
954 |
var startPos = c._latlng,
|
|
|
955 |
markers = c._markers,
|
|
|
956 |
m;
|
|
|
957 |
|
|
|
958 |
if (!bounds.contains(startPos)) {
|
|
|
959 |
startPos = null;
|
|
|
960 |
}
|
|
|
961 |
|
|
|
962 |
if (c._isSingleParent() && previousZoomLevel + 1 === newZoomLevel) { //Immediately add the new child and remove us
|
|
|
963 |
fg.removeLayer(c);
|
|
|
964 |
c._recursivelyAddChildrenToMap(null, newZoomLevel, bounds);
|
|
|
965 |
} else {
|
|
|
966 |
//Fade out old cluster
|
|
|
967 |
c.setOpacity(0);
|
|
|
968 |
c._recursivelyAddChildrenToMap(startPos, newZoomLevel, bounds);
|
|
|
969 |
}
|
|
|
970 |
|
|
|
971 |
//Remove all markers that aren't visible any more
|
|
|
972 |
//TODO: Do we actually need to do this on the higher levels too?
|
|
|
973 |
for (i = markers.length - 1; i >= 0; i--) {
|
|
|
974 |
m = markers[i];
|
|
|
975 |
if (!bounds.contains(m._latlng)) {
|
|
|
976 |
fg.removeLayer(m);
|
|
|
977 |
}
|
|
|
978 |
}
|
|
|
979 |
|
|
|
980 |
});
|
|
|
981 |
|
|
|
982 |
this._forceLayout();
|
|
|
983 |
|
|
|
984 |
//Update opacities
|
|
|
985 |
this._topClusterLevel._recursivelyBecomeVisible(bounds, newZoomLevel);
|
|
|
986 |
//TODO Maybe? Update markers in _recursivelyBecomeVisible
|
|
|
987 |
fg.eachLayer(function (n) {
|
|
|
988 |
if (!(n instanceof L.MarkerCluster) && n._icon) {
|
|
|
989 |
n.setOpacity(1);
|
|
|
990 |
}
|
|
|
991 |
});
|
|
|
992 |
|
|
|
993 |
//update the positions of the just added clusters/markers
|
|
|
994 |
this._topClusterLevel._recursively(bounds, previousZoomLevel, newZoomLevel, function (c) {
|
|
|
995 |
c._recursivelyRestoreChildPositions(newZoomLevel);
|
|
|
996 |
});
|
|
|
997 |
|
|
|
998 |
//Remove the old clusters and close the zoom animation
|
|
|
999 |
this._enqueue(function () {
|
|
|
1000 |
//update the positions of the just added clusters/markers
|
|
|
1001 |
this._topClusterLevel._recursively(bounds, previousZoomLevel, 0, function (c) {
|
|
|
1002 |
fg.removeLayer(c);
|
|
|
1003 |
c.setOpacity(1);
|
|
|
1004 |
});
|
|
|
1005 |
|
|
|
1006 |
this._animationEnd();
|
|
|
1007 |
});
|
|
|
1008 |
},
|
|
|
1009 |
|
|
|
1010 |
_animationZoomOut: function (previousZoomLevel, newZoomLevel) {
|
|
|
1011 |
this._animationZoomOutSingle(this._topClusterLevel, previousZoomLevel - 1, newZoomLevel);
|
|
|
1012 |
|
|
|
1013 |
//Need to add markers for those that weren't on the map before but are now
|
|
|
1014 |
this._topClusterLevel._recursivelyAddChildrenToMap(null, newZoomLevel, this._getExpandedVisibleBounds());
|
|
|
1015 |
//Remove markers that were on the map before but won't be now
|
|
|
1016 |
this._topClusterLevel._recursivelyRemoveChildrenFromMap(this._currentShownBounds, previousZoomLevel, this._getExpandedVisibleBounds());
|
|
|
1017 |
},
|
|
|
1018 |
_animationZoomOutSingle: function (cluster, previousZoomLevel, newZoomLevel) {
|
|
|
1019 |
var bounds = this._getExpandedVisibleBounds();
|
|
|
1020 |
|
|
|
1021 |
//Animate all of the markers in the clusters to move to their cluster center point
|
|
|
1022 |
cluster._recursivelyAnimateChildrenInAndAddSelfToMap(bounds, previousZoomLevel + 1, newZoomLevel);
|
|
|
1023 |
|
|
|
1024 |
var me = this;
|
|
|
1025 |
|
|
|
1026 |
//Update the opacity (If we immediately set it they won't animate)
|
|
|
1027 |
this._forceLayout();
|
|
|
1028 |
cluster._recursivelyBecomeVisible(bounds, newZoomLevel);
|
|
|
1029 |
|
|
|
1030 |
//TODO: Maybe use the transition timing stuff to make this more reliable
|
|
|
1031 |
//When the animations are done, tidy up
|
|
|
1032 |
this._enqueue(function () {
|
|
|
1033 |
|
|
|
1034 |
//This cluster stopped being a cluster before the timeout fired
|
|
|
1035 |
if (cluster._childCount === 1) {
|
|
|
1036 |
var m = cluster._markers[0];
|
|
|
1037 |
//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
|
|
|
1038 |
m.setLatLng(m.getLatLng());
|
|
|
1039 |
if (m.setOpacity) {
|
|
|
1040 |
m.setOpacity(1);
|
|
|
1041 |
}
|
|
|
1042 |
} else {
|
|
|
1043 |
cluster._recursively(bounds, newZoomLevel, 0, function (c) {
|
|
|
1044 |
c._recursivelyRemoveChildrenFromMap(bounds, previousZoomLevel + 1);
|
|
|
1045 |
});
|
|
|
1046 |
}
|
|
|
1047 |
me._animationEnd();
|
|
|
1048 |
});
|
|
|
1049 |
},
|
|
|
1050 |
_animationAddLayer: function (layer, newCluster) {
|
|
|
1051 |
var me = this,
|
|
|
1052 |
fg = this._featureGroup;
|
|
|
1053 |
|
|
|
1054 |
fg.addLayer(layer);
|
|
|
1055 |
if (newCluster !== layer) {
|
|
|
1056 |
if (newCluster._childCount > 2) { //Was already a cluster
|
|
|
1057 |
|
|
|
1058 |
newCluster._updateIcon();
|
|
|
1059 |
this._forceLayout();
|
|
|
1060 |
this._animationStart();
|
|
|
1061 |
|
|
|
1062 |
layer._setPos(this._map.latLngToLayerPoint(newCluster.getLatLng()));
|
|
|
1063 |
layer.setOpacity(0);
|
|
|
1064 |
|
|
|
1065 |
this._enqueue(function () {
|
|
|
1066 |
fg.removeLayer(layer);
|
|
|
1067 |
layer.setOpacity(1);
|
|
|
1068 |
|
|
|
1069 |
me._animationEnd();
|
|
|
1070 |
});
|
|
|
1071 |
|
|
|
1072 |
} else { //Just became a cluster
|
|
|
1073 |
this._forceLayout();
|
|
|
1074 |
|
|
|
1075 |
me._animationStart();
|
|
|
1076 |
me._animationZoomOutSingle(newCluster, this._map.getMaxZoom(), this._map.getZoom());
|
|
|
1077 |
}
|
|
|
1078 |
}
|
|
|
1079 |
},
|
|
|
1080 |
|
|
|
1081 |
//Force a browser layout of stuff in the map
|
|
|
1082 |
// Should apply the current opacity and location to all elements so we can update them again for an animation
|
|
|
1083 |
_forceLayout: function () {
|
|
|
1084 |
//In my testing this works, infact offsetWidth of any element seems to work.
|
|
|
1085 |
//Could loop all this._layers and do this for each _icon if it stops working
|
|
|
1086 |
|
|
|
1087 |
L.Util.falseFn(document.body.offsetWidth);
|
|
|
1088 |
}
|
|
|
1089 |
});
|
|
|
1090 |
|
|
|
1091 |
L.markerClusterGroup = function (options) {
|
|
|
1092 |
return new L.MarkerClusterGroup(options);
|
|
|
1093 |
};
|
|
|
1094 |
|
|
|
1095 |
|
|
|
1096 |
L.MarkerCluster = L.Marker.extend({
|
|
|
1097 |
initialize: function (group, zoom, a, b) {
|
|
|
1098 |
|
|
|
1099 |
L.Marker.prototype.initialize.call(this, a ? (a._cLatLng || a.getLatLng()) : new L.LatLng(0, 0), { icon: this });
|
|
|
1100 |
|
|
|
1101 |
|
|
|
1102 |
this._group = group;
|
|
|
1103 |
this._zoom = zoom;
|
|
|
1104 |
|
|
|
1105 |
this._markers = [];
|
|
|
1106 |
this._childClusters = [];
|
|
|
1107 |
this._childCount = 0;
|
|
|
1108 |
this._iconNeedsUpdate = true;
|
|
|
1109 |
|
|
|
1110 |
this._bounds = new L.LatLngBounds();
|
|
|
1111 |
|
|
|
1112 |
if (a) {
|
|
|
1113 |
this._addChild(a);
|
|
|
1114 |
}
|
|
|
1115 |
if (b) {
|
|
|
1116 |
this._addChild(b);
|
|
|
1117 |
}
|
|
|
1118 |
},
|
|
|
1119 |
|
|
|
1120 |
//Recursively retrieve all child markers of this cluster
|
|
|
1121 |
getAllChildMarkers: function (storageArray) {
|
|
|
1122 |
storageArray = storageArray || [];
|
|
|
1123 |
|
|
|
1124 |
for (var i = this._childClusters.length - 1; i >= 0; i--) {
|
|
|
1125 |
this._childClusters[i].getAllChildMarkers(storageArray);
|
|
|
1126 |
}
|
|
|
1127 |
|
|
|
1128 |
for (var j = this._markers.length - 1; j >= 0; j--) {
|
|
|
1129 |
storageArray.push(this._markers[j]);
|
|
|
1130 |
}
|
|
|
1131 |
|
|
|
1132 |
return storageArray;
|
|
|
1133 |
},
|
|
|
1134 |
|
|
|
1135 |
//Returns the count of how many child markers we have
|
|
|
1136 |
getChildCount: function () {
|
|
|
1137 |
return this._childCount;
|
|
|
1138 |
},
|
|
|
1139 |
|
|
|
1140 |
//Zoom to the minimum of showing all of the child markers, or the extents of this cluster
|
|
|
1141 |
zoomToBounds: function () {
|
|
|
1142 |
var childClusters = this._childClusters.slice(),
|
|
|
1143 |
map = this._group._map,
|
|
|
1144 |
boundsZoom = map.getBoundsZoom(this._bounds),
|
|
|
1145 |
zoom = this._zoom + 1,
|
|
|
1146 |
mapZoom = map.getZoom(),
|
|
|
1147 |
i;
|
|
|
1148 |
|
|
|
1149 |
//calculate how far we need to zoom down to see all of the markers
|
|
|
1150 |
while (childClusters.length > 0 && boundsZoom > zoom) {
|
|
|
1151 |
zoom++;
|
|
|
1152 |
var newClusters = [];
|
|
|
1153 |
for (i = 0; i < childClusters.length; i++) {
|
|
|
1154 |
newClusters = newClusters.concat(childClusters[i]._childClusters);
|
|
|
1155 |
}
|
|
|
1156 |
childClusters = newClusters;
|
|
|
1157 |
}
|
|
|
1158 |
|
|
|
1159 |
if (boundsZoom > zoom) {
|
|
|
1160 |
this._group._map.setView(this._latlng, zoom);
|
|
|
1161 |
} else if (boundsZoom <= mapZoom) { //If fitBounds wouldn't zoom us down, zoom us down instead
|
|
|
1162 |
this._group._map.setView(this._latlng, mapZoom + 1);
|
|
|
1163 |
} else {
|
|
|
1164 |
this._group._map.fitBounds(this._bounds);
|
|
|
1165 |
}
|
|
|
1166 |
},
|
|
|
1167 |
|
|
|
1168 |
getBounds: function () {
|
|
|
1169 |
var bounds = new L.LatLngBounds();
|
|
|
1170 |
bounds.extend(this._bounds);
|
|
|
1171 |
return bounds;
|
|
|
1172 |
},
|
|
|
1173 |
|
|
|
1174 |
_updateIcon: function () {
|
|
|
1175 |
this._iconNeedsUpdate = true;
|
|
|
1176 |
if (this._icon) {
|
|
|
1177 |
this.setIcon(this);
|
|
|
1178 |
}
|
|
|
1179 |
},
|
|
|
1180 |
|
|
|
1181 |
//Cludge for Icon, we pretend to be an icon for performance
|
|
|
1182 |
createIcon: function () {
|
|
|
1183 |
if (this._iconNeedsUpdate) {
|
|
|
1184 |
this._iconObj = this._group.options.iconCreateFunction(this);
|
|
|
1185 |
this._iconNeedsUpdate = false;
|
|
|
1186 |
}
|
|
|
1187 |
return this._iconObj.createIcon();
|
|
|
1188 |
},
|
|
|
1189 |
createShadow: function () {
|
|
|
1190 |
return this._iconObj.createShadow();
|
|
|
1191 |
},
|
|
|
1192 |
|
|
|
1193 |
|
|
|
1194 |
_addChild: function (new1, isNotificationFromChild) {
|
|
|
1195 |
|
|
|
1196 |
this._iconNeedsUpdate = true;
|
|
|
1197 |
this._expandBounds(new1);
|
|
|
1198 |
|
|
|
1199 |
if (new1 instanceof L.MarkerCluster) {
|
|
|
1200 |
if (!isNotificationFromChild) {
|
|
|
1201 |
this._childClusters.push(new1);
|
|
|
1202 |
new1.__parent = this;
|
|
|
1203 |
}
|
|
|
1204 |
this._childCount += new1._childCount;
|
|
|
1205 |
} else {
|
|
|
1206 |
if (!isNotificationFromChild) {
|
|
|
1207 |
this._markers.push(new1);
|
|
|
1208 |
}
|
|
|
1209 |
this._childCount++;
|
|
|
1210 |
}
|
|
|
1211 |
|
|
|
1212 |
if (this.__parent) {
|
|
|
1213 |
this.__parent._addChild(new1, true);
|
|
|
1214 |
}
|
|
|
1215 |
},
|
|
|
1216 |
|
|
|
1217 |
//Expand our bounds and tell our parent to
|
|
|
1218 |
_expandBounds: function (marker) {
|
|
|
1219 |
var addedCount,
|
|
|
1220 |
addedLatLng = marker._wLatLng || marker._latlng;
|
|
|
1221 |
|
|
|
1222 |
if (marker instanceof L.MarkerCluster) {
|
|
|
1223 |
this._bounds.extend(marker._bounds);
|
|
|
1224 |
addedCount = marker._childCount;
|
|
|
1225 |
} else {
|
|
|
1226 |
this._bounds.extend(addedLatLng);
|
|
|
1227 |
addedCount = 1;
|
|
|
1228 |
}
|
|
|
1229 |
|
|
|
1230 |
if (!this._cLatLng) {
|
|
|
1231 |
// when clustering, take position of the first point as the cluster center
|
|
|
1232 |
this._cLatLng = marker._cLatLng || addedLatLng;
|
|
|
1233 |
}
|
|
|
1234 |
|
|
|
1235 |
// when showing clusters, take weighted average of all points as cluster center
|
|
|
1236 |
var totalCount = this._childCount + addedCount;
|
|
|
1237 |
|
|
|
1238 |
//Calculate weighted latlng for display
|
|
|
1239 |
if (!this._wLatLng) {
|
|
|
1240 |
this._latlng = this._wLatLng = new L.LatLng(addedLatLng.lat, addedLatLng.lng);
|
|
|
1241 |
} else {
|
|
|
1242 |
this._wLatLng.lat = (addedLatLng.lat * addedCount + this._wLatLng.lat * this._childCount) / totalCount;
|
|
|
1243 |
this._wLatLng.lng = (addedLatLng.lng * addedCount + this._wLatLng.lng * this._childCount) / totalCount;
|
|
|
1244 |
}
|
|
|
1245 |
},
|
|
|
1246 |
|
|
|
1247 |
//Set our markers position as given and add it to the map
|
|
|
1248 |
_addToMap: function (startPos) {
|
|
|
1249 |
if (startPos) {
|
|
|
1250 |
this._backupLatlng = this._latlng;
|
|
|
1251 |
this.setLatLng(startPos);
|
|
|
1252 |
}
|
|
|
1253 |
this._group._featureGroup.addLayer(this);
|
|
|
1254 |
},
|
|
|
1255 |
|
|
|
1256 |
_recursivelyAnimateChildrenIn: function (bounds, center, maxZoom) {
|
|
|
1257 |
this._recursively(bounds, 0, maxZoom - 1,
|
|
|
1258 |
function (c) {
|
|
|
1259 |
var markers = c._markers,
|
|
|
1260 |
i, m;
|
|
|
1261 |
for (i = markers.length - 1; i >= 0; i--) {
|
|
|
1262 |
m = markers[i];
|
|
|
1263 |
|
|
|
1264 |
//Only do it if the icon is still on the map
|
|
|
1265 |
if (m._icon) {
|
|
|
1266 |
m._setPos(center);
|
|
|
1267 |
m.setOpacity(0);
|
|
|
1268 |
}
|
|
|
1269 |
}
|
|
|
1270 |
},
|
|
|
1271 |
function (c) {
|
|
|
1272 |
var childClusters = c._childClusters,
|
|
|
1273 |
j, cm;
|
|
|
1274 |
for (j = childClusters.length - 1; j >= 0; j--) {
|
|
|
1275 |
cm = childClusters[j];
|
|
|
1276 |
if (cm._icon) {
|
|
|
1277 |
cm._setPos(center);
|
|
|
1278 |
cm.setOpacity(0);
|
|
|
1279 |
}
|
|
|
1280 |
}
|
|
|
1281 |
}
|
|
|
1282 |
);
|
|
|
1283 |
},
|
|
|
1284 |
|
|
|
1285 |
_recursivelyAnimateChildrenInAndAddSelfToMap: function (bounds, previousZoomLevel, newZoomLevel) {
|
|
|
1286 |
this._recursively(bounds, newZoomLevel, 0,
|
|
|
1287 |
function (c) {
|
|
|
1288 |
c._recursivelyAnimateChildrenIn(bounds, c._group._map.latLngToLayerPoint(c.getLatLng()).round(), previousZoomLevel);
|
|
|
1289 |
|
|
|
1290 |
//TODO: depthToAnimateIn affects _isSingleParent, if there is a multizoom we may/may not be.
|
|
|
1291 |
//As a hack we only do a animation free zoom on a single level zoom, if someone does multiple levels then we always animate
|
|
|
1292 |
if (c._isSingleParent() && previousZoomLevel - 1 === newZoomLevel) {
|
|
|
1293 |
c.setOpacity(1);
|
|
|
1294 |
c._recursivelyRemoveChildrenFromMap(bounds, previousZoomLevel); //Immediately remove our children as we are replacing them. TODO previousBounds not bounds
|
|
|
1295 |
} else {
|
|
|
1296 |
c.setOpacity(0);
|
|
|
1297 |
}
|
|
|
1298 |
|
|
|
1299 |
c._addToMap();
|
|
|
1300 |
}
|
|
|
1301 |
);
|
|
|
1302 |
},
|
|
|
1303 |
|
|
|
1304 |
_recursivelyBecomeVisible: function (bounds, zoomLevel) {
|
|
|
1305 |
this._recursively(bounds, 0, zoomLevel, null, function (c) {
|
|
|
1306 |
c.setOpacity(1);
|
|
|
1307 |
});
|
|
|
1308 |
},
|
|
|
1309 |
|
|
|
1310 |
_recursivelyAddChildrenToMap: function (startPos, zoomLevel, bounds) {
|
|
|
1311 |
this._recursively(bounds, -1, zoomLevel,
|
|
|
1312 |
function (c) {
|
|
|
1313 |
if (zoomLevel === c._zoom) {
|
|
|
1314 |
return;
|
|
|
1315 |
}
|
|
|
1316 |
|
|
|
1317 |
//Add our child markers at startPos (so they can be animated out)
|
|
|
1318 |
for (var i = c._markers.length - 1; i >= 0; i--) {
|
|
|
1319 |
var nm = c._markers[i];
|
|
|
1320 |
|
|
|
1321 |
if (!bounds.contains(nm._latlng)) {
|
|
|
1322 |
continue;
|
|
|
1323 |
}
|
|
|
1324 |
|
|
|
1325 |
if (startPos) {
|
|
|
1326 |
nm._backupLatlng = nm.getLatLng();
|
|
|
1327 |
|
|
|
1328 |
nm.setLatLng(startPos);
|
|
|
1329 |
if (nm.setOpacity) {
|
|
|
1330 |
nm.setOpacity(0);
|
|
|
1331 |
}
|
|
|
1332 |
}
|
|
|
1333 |
|
|
|
1334 |
c._group._featureGroup.addLayer(nm);
|
|
|
1335 |
}
|
|
|
1336 |
},
|
|
|
1337 |
function (c) {
|
|
|
1338 |
c._addToMap(startPos);
|
|
|
1339 |
}
|
|
|
1340 |
);
|
|
|
1341 |
},
|
|
|
1342 |
|
|
|
1343 |
_recursivelyRestoreChildPositions: function (zoomLevel) {
|
|
|
1344 |
//Fix positions of child markers
|
|
|
1345 |
for (var i = this._markers.length - 1; i >= 0; i--) {
|
|
|
1346 |
var nm = this._markers[i];
|
|
|
1347 |
if (nm._backupLatlng) {
|
|
|
1348 |
nm.setLatLng(nm._backupLatlng);
|
|
|
1349 |
delete nm._backupLatlng;
|
|
|
1350 |
}
|
|
|
1351 |
}
|
|
|
1352 |
|
|
|
1353 |
if (zoomLevel - 1 === this._zoom) {
|
|
|
1354 |
//Reposition child clusters
|
|
|
1355 |
for (var j = this._childClusters.length - 1; j >= 0; j--) {
|
|
|
1356 |
this._childClusters[j]._restorePosition();
|
|
|
1357 |
}
|
|
|
1358 |
} else {
|
|
|
1359 |
for (var k = this._childClusters.length - 1; k >= 0; k--) {
|
|
|
1360 |
this._childClusters[k]._recursivelyRestoreChildPositions(zoomLevel);
|
|
|
1361 |
}
|
|
|
1362 |
}
|
|
|
1363 |
},
|
|
|
1364 |
|
|
|
1365 |
_restorePosition: function () {
|
|
|
1366 |
if (this._backupLatlng) {
|
|
|
1367 |
this.setLatLng(this._backupLatlng);
|
|
|
1368 |
delete this._backupLatlng;
|
|
|
1369 |
}
|
|
|
1370 |
},
|
|
|
1371 |
|
|
|
1372 |
//exceptBounds: If set, don't remove any markers/clusters in it
|
|
|
1373 |
_recursivelyRemoveChildrenFromMap: function (previousBounds, zoomLevel, exceptBounds) {
|
|
|
1374 |
var m, i;
|
|
|
1375 |
this._recursively(previousBounds, -1, zoomLevel - 1,
|
|
|
1376 |
function (c) {
|
|
|
1377 |
//Remove markers at every level
|
|
|
1378 |
for (i = c._markers.length - 1; i >= 0; i--) {
|
|
|
1379 |
m = c._markers[i];
|
|
|
1380 |
if (!exceptBounds || !exceptBounds.contains(m._latlng)) {
|
|
|
1381 |
c._group._featureGroup.removeLayer(m);
|
|
|
1382 |
if (m.setOpacity) {
|
|
|
1383 |
m.setOpacity(1);
|
|
|
1384 |
}
|
|
|
1385 |
}
|
|
|
1386 |
}
|
|
|
1387 |
},
|
|
|
1388 |
function (c) {
|
|
|
1389 |
//Remove child clusters at just the bottom level
|
|
|
1390 |
for (i = c._childClusters.length - 1; i >= 0; i--) {
|
|
|
1391 |
m = c._childClusters[i];
|
|
|
1392 |
if (!exceptBounds || !exceptBounds.contains(m._latlng)) {
|
|
|
1393 |
c._group._featureGroup.removeLayer(m);
|
|
|
1394 |
if (m.setOpacity) {
|
|
|
1395 |
m.setOpacity(1);
|
|
|
1396 |
}
|
|
|
1397 |
}
|
|
|
1398 |
}
|
|
|
1399 |
}
|
|
|
1400 |
);
|
|
|
1401 |
},
|
|
|
1402 |
|
|
|
1403 |
//Run the given functions recursively to this and child clusters
|
|
|
1404 |
// boundsToApplyTo: a L.LatLngBounds representing the bounds of what clusters to recurse in to
|
|
|
1405 |
// zoomLevelToStart: zoom level to start running functions (inclusive)
|
|
|
1406 |
// zoomLevelToStop: zoom level to stop running functions (inclusive)
|
|
|
1407 |
// runAtEveryLevel: function that takes an L.MarkerCluster as an argument that should be applied on every level
|
|
|
1408 |
// runAtBottomLevel: function that takes an L.MarkerCluster as an argument that should be applied at only the bottom level
|
|
|
1409 |
_recursively: function (boundsToApplyTo, zoomLevelToStart, zoomLevelToStop, runAtEveryLevel, runAtBottomLevel) {
|
|
|
1410 |
var childClusters = this._childClusters,
|
|
|
1411 |
zoom = this._zoom,
|
|
|
1412 |
i, c;
|
|
|
1413 |
|
|
|
1414 |
if (zoomLevelToStart > zoom) { //Still going down to required depth, just recurse to child clusters
|
|
|
1415 |
for (i = childClusters.length - 1; i >= 0; i--) {
|
|
|
1416 |
c = childClusters[i];
|
|
|
1417 |
if (boundsToApplyTo.intersects(c._bounds)) {
|
|
|
1418 |
c._recursively(boundsToApplyTo, zoomLevelToStart, zoomLevelToStop, runAtEveryLevel, runAtBottomLevel);
|
|
|
1419 |
}
|
|
|
1420 |
}
|
|
|
1421 |
} else { //In required depth
|
|
|
1422 |
|
|
|
1423 |
if (runAtEveryLevel) {
|
|
|
1424 |
runAtEveryLevel(this);
|
|
|
1425 |
}
|
|
|
1426 |
if (runAtBottomLevel && this._zoom === zoomLevelToStop) {
|
|
|
1427 |
runAtBottomLevel(this);
|
|
|
1428 |
}
|
|
|
1429 |
|
|
|
1430 |
//TODO: This loop is almost the same as above
|
|
|
1431 |
if (zoomLevelToStop > zoom) {
|
|
|
1432 |
for (i = childClusters.length - 1; i >= 0; i--) {
|
|
|
1433 |
c = childClusters[i];
|
|
|
1434 |
if (boundsToApplyTo.intersects(c._bounds)) {
|
|
|
1435 |
c._recursively(boundsToApplyTo, zoomLevelToStart, zoomLevelToStop, runAtEveryLevel, runAtBottomLevel);
|
|
|
1436 |
}
|
|
|
1437 |
}
|
|
|
1438 |
}
|
|
|
1439 |
}
|
|
|
1440 |
},
|
|
|
1441 |
|
|
|
1442 |
_recalculateBounds: function () {
|
|
|
1443 |
var markers = this._markers,
|
|
|
1444 |
childClusters = this._childClusters,
|
|
|
1445 |
i;
|
|
|
1446 |
|
|
|
1447 |
this._bounds = new L.LatLngBounds();
|
|
|
1448 |
delete this._wLatLng;
|
|
|
1449 |
|
|
|
1450 |
for (i = markers.length - 1; i >= 0; i--) {
|
|
|
1451 |
this._expandBounds(markers[i]);
|
|
|
1452 |
}
|
|
|
1453 |
for (i = childClusters.length - 1; i >= 0; i--) {
|
|
|
1454 |
this._expandBounds(childClusters[i]);
|
|
|
1455 |
}
|
|
|
1456 |
},
|
|
|
1457 |
|
|
|
1458 |
|
|
|
1459 |
//Returns true if we are the parent of only one cluster and that cluster is the same as us
|
|
|
1460 |
_isSingleParent: function () {
|
|
|
1461 |
//Don't need to check this._markers as the rest won't work if there are any
|
|
|
1462 |
return this._childClusters.length > 0 && this._childClusters[0]._childCount === this._childCount;
|
|
|
1463 |
}
|
|
|
1464 |
});
|
|
|
1465 |
|
|
|
1466 |
|
|
|
1467 |
|
|
|
1468 |
L.DistanceGrid = function (cellSize) {
|
|
|
1469 |
this._cellSize = cellSize;
|
|
|
1470 |
this._sqCellSize = cellSize * cellSize;
|
|
|
1471 |
this._grid = {};
|
|
|
1472 |
this._objectPoint = { };
|
|
|
1473 |
};
|
|
|
1474 |
|
|
|
1475 |
L.DistanceGrid.prototype = {
|
|
|
1476 |
|
|
|
1477 |
addObject: function (obj, point) {
|
|
|
1478 |
var x = this._getCoord(point.x),
|
|
|
1479 |
y = this._getCoord(point.y),
|
|
|
1480 |
grid = this._grid,
|
|
|
1481 |
row = grid[y] = grid[y] || {},
|
|
|
1482 |
cell = row[x] = row[x] || [],
|
|
|
1483 |
stamp = L.Util.stamp(obj);
|
|
|
1484 |
|
|
|
1485 |
this._objectPoint[stamp] = point;
|
|
|
1486 |
|
|
|
1487 |
cell.push(obj);
|
|
|
1488 |
},
|
|
|
1489 |
|
|
|
1490 |
updateObject: function (obj, point) {
|
|
|
1491 |
this.removeObject(obj);
|
|
|
1492 |
this.addObject(obj, point);
|
|
|
1493 |
},
|
|
|
1494 |
|
|
|
1495 |
//Returns true if the object was found
|
|
|
1496 |
removeObject: function (obj, point) {
|
|
|
1497 |
var x = this._getCoord(point.x),
|
|
|
1498 |
y = this._getCoord(point.y),
|
|
|
1499 |
grid = this._grid,
|
|
|
1500 |
row = grid[y] = grid[y] || {},
|
|
|
1501 |
cell = row[x] = row[x] || [],
|
|
|
1502 |
i, len;
|
|
|
1503 |
|
|
|
1504 |
delete this._objectPoint[L.Util.stamp(obj)];
|
|
|
1505 |
|
|
|
1506 |
for (i = 0, len = cell.length; i < len; i++) {
|
|
|
1507 |
if (cell[i] === obj) {
|
|
|
1508 |
|
|
|
1509 |
cell.splice(i, 1);
|
|
|
1510 |
|
|
|
1511 |
if (len === 1) {
|
|
|
1512 |
delete row[x];
|
|
|
1513 |
}
|
|
|
1514 |
|
|
|
1515 |
return true;
|
|
|
1516 |
}
|
|
|
1517 |
}
|
|
|
1518 |
|
|
|
1519 |
},
|
|
|
1520 |
|
|
|
1521 |
eachObject: function (fn, context) {
|
|
|
1522 |
var i, j, k, len, row, cell, removed,
|
|
|
1523 |
grid = this._grid;
|
|
|
1524 |
|
|
|
1525 |
for (i in grid) {
|
|
|
1526 |
row = grid[i];
|
|
|
1527 |
|
|
|
1528 |
for (j in row) {
|
|
|
1529 |
cell = row[j];
|
|
|
1530 |
|
|
|
1531 |
for (k = 0, len = cell.length; k < len; k++) {
|
|
|
1532 |
removed = fn.call(context, cell[k]);
|
|
|
1533 |
if (removed) {
|
|
|
1534 |
k--;
|
|
|
1535 |
len--;
|
|
|
1536 |
}
|
|
|
1537 |
}
|
|
|
1538 |
}
|
|
|
1539 |
}
|
|
|
1540 |
},
|
|
|
1541 |
|
|
|
1542 |
getNearObject: function (point) {
|
|
|
1543 |
var x = this._getCoord(point.x),
|
|
|
1544 |
y = this._getCoord(point.y),
|
|
|
1545 |
i, j, k, row, cell, len, obj, dist,
|
|
|
1546 |
objectPoint = this._objectPoint,
|
|
|
1547 |
closestDistSq = this._sqCellSize,
|
|
|
1548 |
closest = null;
|
|
|
1549 |
|
|
|
1550 |
for (i = y - 1; i <= y + 1; i++) {
|
|
|
1551 |
row = this._grid[i];
|
|
|
1552 |
if (row) {
|
|
|
1553 |
|
|
|
1554 |
for (j = x - 1; j <= x + 1; j++) {
|
|
|
1555 |
cell = row[j];
|
|
|
1556 |
if (cell) {
|
|
|
1557 |
|
|
|
1558 |
for (k = 0, len = cell.length; k < len; k++) {
|
|
|
1559 |
obj = cell[k];
|
|
|
1560 |
dist = this._sqDist(objectPoint[L.Util.stamp(obj)], point);
|
|
|
1561 |
if (dist < closestDistSq) {
|
|
|
1562 |
closestDistSq = dist;
|
|
|
1563 |
closest = obj;
|
|
|
1564 |
}
|
|
|
1565 |
}
|
|
|
1566 |
}
|
|
|
1567 |
}
|
|
|
1568 |
}
|
|
|
1569 |
}
|
|
|
1570 |
return closest;
|
|
|
1571 |
},
|
|
|
1572 |
|
|
|
1573 |
_getCoord: function (x) {
|
|
|
1574 |
return Math.floor(x / this._cellSize);
|
|
|
1575 |
},
|
|
|
1576 |
|
|
|
1577 |
_sqDist: function (p, p2) {
|
|
|
1578 |
var dx = p2.x - p.x,
|
|
|
1579 |
dy = p2.y - p.y;
|
|
|
1580 |
return dx * dx + dy * dy;
|
|
|
1581 |
}
|
|
|
1582 |
};
|
|
|
1583 |
|
|
|
1584 |
|
|
|
1585 |
/* Copyright (c) 2012 the authors listed at the following URL, and/or
|
|
|
1586 |
the authors of referenced articles or incorporated external code:
|
|
|
1587 |
http://en.literateprograms.org/Quickhull_(Javascript)?action=history&offset=20120410175256
|
|
|
1588 |
|
|
|
1589 |
Permission is hereby granted, free of charge, to any person obtaining
|
|
|
1590 |
a copy of this software and associated documentation files (the
|
|
|
1591 |
"Software"), to deal in the Software without restriction, including
|
|
|
1592 |
without limitation the rights to use, copy, modify, merge, publish,
|
|
|
1593 |
distribute, sublicense, and/or sell copies of the Software, and to
|
|
|
1594 |
permit persons to whom the Software is furnished to do so, subject to
|
|
|
1595 |
the following conditions:
|
|
|
1596 |
|
|
|
1597 |
The above copyright notice and this permission notice shall be
|
|
|
1598 |
included in all copies or substantial portions of the Software.
|
|
|
1599 |
|
|
|
1600 |
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
|
1601 |
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
|
1602 |
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
|
|
1603 |
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
|
|
1604 |
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
|
|
1605 |
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
|
|
|
1606 |
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
|
1607 |
|
|
|
1608 |
Retrieved from: http://en.literateprograms.org/Quickhull_(Javascript)?oldid=18434
|
|
|
1609 |
*/
|
|
|
1610 |
|
|
|
1611 |
(function () {
|
|
|
1612 |
L.QuickHull = {
|
|
|
1613 |
|
|
|
1614 |
/*
|
|
|
1615 |
* @param {Object} cpt a point to be measured from the baseline
|
|
|
1616 |
* @param {Array} bl the baseline, as represented by a two-element
|
|
|
1617 |
* array of latlng objects.
|
|
|
1618 |
* @returns {Number} an approximate distance measure
|
|
|
1619 |
*/
|
|
|
1620 |
getDistant: function (cpt, bl) {
|
|
|
1621 |
var vY = bl[1].lat - bl[0].lat,
|
|
|
1622 |
vX = bl[0].lng - bl[1].lng;
|
|
|
1623 |
return (vX * (cpt.lat - bl[0].lat) + vY * (cpt.lng - bl[0].lng));
|
|
|
1624 |
},
|
|
|
1625 |
|
|
|
1626 |
/*
|
|
|
1627 |
* @param {Array} baseLine a two-element array of latlng objects
|
|
|
1628 |
* representing the baseline to project from
|
|
|
1629 |
* @param {Array} latLngs an array of latlng objects
|
|
|
1630 |
* @returns {Object} the maximum point and all new points to stay
|
|
|
1631 |
* in consideration for the hull.
|
|
|
1632 |
*/
|
|
|
1633 |
findMostDistantPointFromBaseLine: function (baseLine, latLngs) {
|
|
|
1634 |
var maxD = 0,
|
|
|
1635 |
maxPt = null,
|
|
|
1636 |
newPoints = [],
|
|
|
1637 |
i, pt, d;
|
|
|
1638 |
|
|
|
1639 |
for (i = latLngs.length - 1; i >= 0; i--) {
|
|
|
1640 |
pt = latLngs[i];
|
|
|
1641 |
d = this.getDistant(pt, baseLine);
|
|
|
1642 |
|
|
|
1643 |
if (d > 0) {
|
|
|
1644 |
newPoints.push(pt);
|
|
|
1645 |
} else {
|
|
|
1646 |
continue;
|
|
|
1647 |
}
|
|
|
1648 |
|
|
|
1649 |
if (d > maxD) {
|
|
|
1650 |
maxD = d;
|
|
|
1651 |
maxPt = pt;
|
|
|
1652 |
}
|
|
|
1653 |
}
|
|
|
1654 |
|
|
|
1655 |
return { maxPoint: maxPt, newPoints: newPoints };
|
|
|
1656 |
},
|
|
|
1657 |
|
|
|
1658 |
|
|
|
1659 |
/*
|
|
|
1660 |
* Given a baseline, compute the convex hull of latLngs as an array
|
|
|
1661 |
* of latLngs.
|
|
|
1662 |
*
|
|
|
1663 |
* @param {Array} latLngs
|
|
|
1664 |
* @returns {Array}
|
|
|
1665 |
*/
|
|
|
1666 |
buildConvexHull: function (baseLine, latLngs) {
|
|
|
1667 |
var convexHullBaseLines = [],
|
|
|
1668 |
t = this.findMostDistantPointFromBaseLine(baseLine, latLngs);
|
|
|
1669 |
|
|
|
1670 |
if (t.maxPoint) { // if there is still a point "outside" the base line
|
|
|
1671 |
convexHullBaseLines =
|
|
|
1672 |
convexHullBaseLines.concat(
|
|
|
1673 |
this.buildConvexHull([baseLine[0], t.maxPoint], t.newPoints)
|
|
|
1674 |
);
|
|
|
1675 |
convexHullBaseLines =
|
|
|
1676 |
convexHullBaseLines.concat(
|
|
|
1677 |
this.buildConvexHull([t.maxPoint, baseLine[1]], t.newPoints)
|
|
|
1678 |
);
|
|
|
1679 |
return convexHullBaseLines;
|
|
|
1680 |
} else { // if there is no more point "outside" the base line, the current base line is part of the convex hull
|
|
|
1681 |
return [baseLine[0]];
|
|
|
1682 |
}
|
|
|
1683 |
},
|
|
|
1684 |
|
|
|
1685 |
/*
|
|
|
1686 |
* Given an array of latlngs, compute a convex hull as an array
|
|
|
1687 |
* of latlngs
|
|
|
1688 |
*
|
|
|
1689 |
* @param {Array} latLngs
|
|
|
1690 |
* @returns {Array}
|
|
|
1691 |
*/
|
|
|
1692 |
getConvexHull: function (latLngs) {
|
|
|
1693 |
// find first baseline
|
|
|
1694 |
var maxLat = false, minLat = false,
|
|
|
1695 |
maxPt = null, minPt = null,
|
|
|
1696 |
i;
|
|
|
1697 |
|
|
|
1698 |
for (i = latLngs.length - 1; i >= 0; i--) {
|
|
|
1699 |
var pt = latLngs[i];
|
|
|
1700 |
if (maxLat === false || pt.lat > maxLat) {
|
|
|
1701 |
maxPt = pt;
|
|
|
1702 |
maxLat = pt.lat;
|
|
|
1703 |
}
|
|
|
1704 |
if (minLat === false || pt.lat < minLat) {
|
|
|
1705 |
minPt = pt;
|
|
|
1706 |
minLat = pt.lat;
|
|
|
1707 |
}
|
|
|
1708 |
}
|
|
|
1709 |
var ch = [].concat(this.buildConvexHull([minPt, maxPt], latLngs),
|
|
|
1710 |
this.buildConvexHull([maxPt, minPt], latLngs));
|
|
|
1711 |
return ch;
|
|
|
1712 |
}
|
|
|
1713 |
};
|
|
|
1714 |
}());
|
|
|
1715 |
|
|
|
1716 |
L.MarkerCluster.include({
|
|
|
1717 |
getConvexHull: function () {
|
|
|
1718 |
var childMarkers = this.getAllChildMarkers(),
|
|
|
1719 |
points = [],
|
|
|
1720 |
p, i;
|
|
|
1721 |
|
|
|
1722 |
for (i = childMarkers.length - 1; i >= 0; i--) {
|
|
|
1723 |
p = childMarkers[i].getLatLng();
|
|
|
1724 |
points.push(p);
|
|
|
1725 |
}
|
|
|
1726 |
|
|
|
1727 |
return L.QuickHull.getConvexHull(points);
|
|
|
1728 |
}
|
|
|
1729 |
});
|
|
|
1730 |
|
|
|
1731 |
|
|
|
1732 |
//This code is 100% based on https://github.com/jawj/OverlappingMarkerSpiderfier-Leaflet
|
|
|
1733 |
//Huge thanks to jawj for implementing it first to make my job easy :-)
|
|
|
1734 |
|
|
|
1735 |
L.MarkerCluster.include({
|
|
|
1736 |
|
|
|
1737 |
_2PI: Math.PI * 2,
|
|
|
1738 |
_circleFootSeparation: 25, //related to circumference of circle
|
|
|
1739 |
_circleStartAngle: Math.PI / 6,
|
|
|
1740 |
|
|
|
1741 |
_spiralFootSeparation: 28, //related to size of spiral (experiment!)
|
|
|
1742 |
_spiralLengthStart: 11,
|
|
|
1743 |
_spiralLengthFactor: 5,
|
|
|
1744 |
|
|
|
1745 |
_circleSpiralSwitchover: 9, //show spiral instead of circle from this marker count upwards.
|
|
|
1746 |
// 0 -> always spiral; Infinity -> always circle
|
|
|
1747 |
|
|
|
1748 |
spiderfy: function () {
|
|
|
1749 |
if (this._group._spiderfied === this || this._group._inZoomAnimation) {
|
|
|
1750 |
return;
|
|
|
1751 |
}
|
|
|
1752 |
|
|
|
1753 |
var childMarkers = this.getAllChildMarkers(),
|
|
|
1754 |
group = this._group,
|
|
|
1755 |
map = group._map,
|
|
|
1756 |
center = map.latLngToLayerPoint(this._latlng),
|
|
|
1757 |
positions;
|
|
|
1758 |
|
|
|
1759 |
this._group._unspiderfy();
|
|
|
1760 |
this._group._spiderfied = this;
|
|
|
1761 |
|
|
|
1762 |
//TODO Maybe: childMarkers order by distance to center
|
|
|
1763 |
|
|
|
1764 |
if (childMarkers.length >= this._circleSpiralSwitchover) {
|
|
|
1765 |
positions = this._generatePointsSpiral(childMarkers.length, center);
|
|
|
1766 |
} else {
|
|
|
1767 |
center.y += 10; //Otherwise circles look wrong
|
|
|
1768 |
positions = this._generatePointsCircle(childMarkers.length, center);
|
|
|
1769 |
}
|
|
|
1770 |
|
|
|
1771 |
this._animationSpiderfy(childMarkers, positions);
|
|
|
1772 |
},
|
|
|
1773 |
|
|
|
1774 |
unspiderfy: function (zoomDetails) {
|
|
|
1775 |
/// <param Name="zoomDetails">Argument from zoomanim if being called in a zoom animation or null otherwise</param>
|
|
|
1776 |
if (this._group._inZoomAnimation) {
|
|
|
1777 |
return;
|
|
|
1778 |
}
|
|
|
1779 |
this._animationUnspiderfy(zoomDetails);
|
|
|
1780 |
|
|
|
1781 |
this._group._spiderfied = null;
|
|
|
1782 |
},
|
|
|
1783 |
|
|
|
1784 |
_generatePointsCircle: function (count, centerPt) {
|
|
|
1785 |
var circumference = this._group.options.spiderfyDistanceMultiplier * this._circleFootSeparation * (2 + count),
|
|
|
1786 |
legLength = circumference / this._2PI, //radius from circumference
|
|
|
1787 |
angleStep = this._2PI / count,
|
|
|
1788 |
res = [],
|
|
|
1789 |
i, angle;
|
|
|
1790 |
|
|
|
1791 |
res.length = count;
|
|
|
1792 |
|
|
|
1793 |
for (i = count - 1; i >= 0; i--) {
|
|
|
1794 |
angle = this._circleStartAngle + i * angleStep;
|
|
|
1795 |
res[i] = new L.Point(centerPt.x + legLength * Math.cos(angle), centerPt.y + legLength * Math.sin(angle))._round();
|
|
|
1796 |
}
|
|
|
1797 |
|
|
|
1798 |
return res;
|
|
|
1799 |
},
|
|
|
1800 |
|
|
|
1801 |
_generatePointsSpiral: function (count, centerPt) {
|
|
|
1802 |
var legLength = this._group.options.spiderfyDistanceMultiplier * this._spiralLengthStart,
|
|
|
1803 |
separation = this._group.options.spiderfyDistanceMultiplier * this._spiralFootSeparation,
|
|
|
1804 |
lengthFactor = this._group.options.spiderfyDistanceMultiplier * this._spiralLengthFactor,
|
|
|
1805 |
angle = 0,
|
|
|
1806 |
res = [],
|
|
|
1807 |
i;
|
|
|
1808 |
|
|
|
1809 |
res.length = count;
|
|
|
1810 |
|
|
|
1811 |
for (i = count - 1; i >= 0; i--) {
|
|
|
1812 |
angle += separation / legLength + i * 0.0005;
|
|
|
1813 |
res[i] = new L.Point(centerPt.x + legLength * Math.cos(angle), centerPt.y + legLength * Math.sin(angle))._round();
|
|
|
1814 |
legLength += this._2PI * lengthFactor / angle;
|
|
|
1815 |
}
|
|
|
1816 |
return res;
|
|
|
1817 |
},
|
|
|
1818 |
|
|
|
1819 |
_noanimationUnspiderfy: function () {
|
|
|
1820 |
var group = this._group,
|
|
|
1821 |
map = group._map,
|
|
|
1822 |
fg = group._featureGroup,
|
|
|
1823 |
childMarkers = this.getAllChildMarkers(),
|
|
|
1824 |
m, i;
|
|
|
1825 |
|
|
|
1826 |
this.setOpacity(1);
|
|
|
1827 |
for (i = childMarkers.length - 1; i >= 0; i--) {
|
|
|
1828 |
m = childMarkers[i];
|
|
|
1829 |
|
|
|
1830 |
fg.removeLayer(m);
|
|
|
1831 |
|
|
|
1832 |
if (m._preSpiderfyLatlng) {
|
|
|
1833 |
m.setLatLng(m._preSpiderfyLatlng);
|
|
|
1834 |
delete m._preSpiderfyLatlng;
|
|
|
1835 |
}
|
|
|
1836 |
if (m.setZIndexOffset) {
|
|
|
1837 |
m.setZIndexOffset(0);
|
|
|
1838 |
}
|
|
|
1839 |
|
|
|
1840 |
if (m._spiderLeg) {
|
|
|
1841 |
map.removeLayer(m._spiderLeg);
|
|
|
1842 |
delete m._spiderLeg;
|
|
|
1843 |
}
|
|
|
1844 |
}
|
|
|
1845 |
|
|
|
1846 |
group._spiderfied = null;
|
|
|
1847 |
}
|
|
|
1848 |
});
|
|
|
1849 |
|
|
|
1850 |
L.MarkerCluster.include(!L.DomUtil.TRANSITION ? {
|
|
|
1851 |
//Non Animated versions of everything
|
|
|
1852 |
_animationSpiderfy: function (childMarkers, positions) {
|
|
|
1853 |
var group = this._group,
|
|
|
1854 |
map = group._map,
|
|
|
1855 |
fg = group._featureGroup,
|
|
|
1856 |
i, m, leg, newPos;
|
|
|
1857 |
|
|
|
1858 |
for (i = childMarkers.length - 1; i >= 0; i--) {
|
|
|
1859 |
newPos = map.layerPointToLatLng(positions[i]);
|
|
|
1860 |
m = childMarkers[i];
|
|
|
1861 |
|
|
|
1862 |
m._preSpiderfyLatlng = m._latlng;
|
|
|
1863 |
m.setLatLng(newPos);
|
|
|
1864 |
if (m.setZIndexOffset) {
|
|
|
1865 |
m.setZIndexOffset(1000000); //Make these appear on top of EVERYTHING
|
|
|
1866 |
}
|
|
|
1867 |
|
|
|
1868 |
fg.addLayer(m);
|
|
|
1869 |
|
|
|
1870 |
|
|
|
1871 |
leg = new L.Polyline([this._latlng, newPos], { weight: 1.5, color: '#222' });
|
|
|
1872 |
map.addLayer(leg);
|
|
|
1873 |
m._spiderLeg = leg;
|
|
|
1874 |
}
|
|
|
1875 |
this.setOpacity(0.3);
|
|
|
1876 |
group.fire('spiderfied');
|
|
|
1877 |
},
|
|
|
1878 |
|
|
|
1879 |
_animationUnspiderfy: function () {
|
|
|
1880 |
this._noanimationUnspiderfy();
|
|
|
1881 |
}
|
|
|
1882 |
} : {
|
|
|
1883 |
//Animated versions here
|
|
|
1884 |
SVG_ANIMATION: (function () {
|
|
|
1885 |
return document.createElementNS('http://www.w3.org/2000/svg', 'animate').toString().indexOf('SVGAnimate') > -1;
|
|
|
1886 |
}()),
|
|
|
1887 |
|
|
|
1888 |
_animationSpiderfy: function (childMarkers, positions) {
|
|
|
1889 |
var me = this,
|
|
|
1890 |
group = this._group,
|
|
|
1891 |
map = group._map,
|
|
|
1892 |
fg = group._featureGroup,
|
|
|
1893 |
thisLayerPos = map.latLngToLayerPoint(this._latlng),
|
|
|
1894 |
i, m, leg, newPos;
|
|
|
1895 |
|
|
|
1896 |
//Add markers to map hidden at our center point
|
|
|
1897 |
for (i = childMarkers.length - 1; i >= 0; i--) {
|
|
|
1898 |
m = childMarkers[i];
|
|
|
1899 |
|
|
|
1900 |
//If it is a marker, add it now and we'll animate it out
|
|
|
1901 |
if (m.setOpacity) {
|
|
|
1902 |
m.setZIndexOffset(1000000); //Make these appear on top of EVERYTHING
|
|
|
1903 |
m.setOpacity(0);
|
|
|
1904 |
|
|
|
1905 |
fg.addLayer(m);
|
|
|
1906 |
|
|
|
1907 |
m._setPos(thisLayerPos);
|
|
|
1908 |
} else {
|
|
|
1909 |
//Vectors just get immediately added
|
|
|
1910 |
fg.addLayer(m);
|
|
|
1911 |
}
|
|
|
1912 |
}
|
|
|
1913 |
|
|
|
1914 |
group._forceLayout();
|
|
|
1915 |
group._animationStart();
|
|
|
1916 |
|
|
|
1917 |
var initialLegOpacity = L.Path.SVG ? 0 : 0.3,
|
|
|
1918 |
xmlns = L.Path.SVG_NS;
|
|
|
1919 |
|
|
|
1920 |
|
|
|
1921 |
for (i = childMarkers.length - 1; i >= 0; i--) {
|
|
|
1922 |
newPos = map.layerPointToLatLng(positions[i]);
|
|
|
1923 |
m = childMarkers[i];
|
|
|
1924 |
|
|
|
1925 |
//Move marker to new position
|
|
|
1926 |
m._preSpiderfyLatlng = m._latlng;
|
|
|
1927 |
m.setLatLng(newPos);
|
|
|
1928 |
|
|
|
1929 |
if (m.setOpacity) {
|
|
|
1930 |
m.setOpacity(1);
|
|
|
1931 |
}
|
|
|
1932 |
|
|
|
1933 |
|
|
|
1934 |
//Add Legs.
|
|
|
1935 |
leg = new L.Polyline([me._latlng, newPos], { weight: 1.5, color: '#222', opacity: initialLegOpacity });
|
|
|
1936 |
map.addLayer(leg);
|
|
|
1937 |
m._spiderLeg = leg;
|
|
|
1938 |
|
|
|
1939 |
//Following animations don't work for canvas
|
|
|
1940 |
if (!L.Path.SVG || !this.SVG_ANIMATION) {
|
|
|
1941 |
continue;
|
|
|
1942 |
}
|
|
|
1943 |
|
|
|
1944 |
//How this works:
|
|
|
1945 |
//http://stackoverflow.com/questions/5924238/how-do-you-animate-an-svg-path-in-ios
|
|
|
1946 |
//http://dev.opera.com/articles/view/advanced-svg-animation-techniques/
|
|
|
1947 |
|
|
|
1948 |
//Animate length
|
|
|
1949 |
var length = leg._path.getTotalLength();
|
|
|
1950 |
leg._path.setAttribute("stroke-dasharray", length + "," + length);
|
|
|
1951 |
|
|
|
1952 |
var anim = document.createElementNS(xmlns, "animate");
|
|
|
1953 |
anim.setAttribute("attributeName", "stroke-dashoffset");
|
|
|
1954 |
anim.setAttribute("begin", "indefinite");
|
|
|
1955 |
anim.setAttribute("from", length);
|
|
|
1956 |
anim.setAttribute("to", 0);
|
|
|
1957 |
anim.setAttribute("dur", 0.25);
|
|
|
1958 |
leg._path.appendChild(anim);
|
|
|
1959 |
anim.beginElement();
|
|
|
1960 |
|
|
|
1961 |
//Animate opacity
|
|
|
1962 |
anim = document.createElementNS(xmlns, "animate");
|
|
|
1963 |
anim.setAttribute("attributeName", "stroke-opacity");
|
|
|
1964 |
anim.setAttribute("attributeName", "stroke-opacity");
|
|
|
1965 |
anim.setAttribute("begin", "indefinite");
|
|
|
1966 |
anim.setAttribute("from", 0);
|
|
|
1967 |
anim.setAttribute("to", 0.5);
|
|
|
1968 |
anim.setAttribute("dur", 0.25);
|
|
|
1969 |
leg._path.appendChild(anim);
|
|
|
1970 |
anim.beginElement();
|
|
|
1971 |
}
|
|
|
1972 |
me.setOpacity(0.3);
|
|
|
1973 |
|
|
|
1974 |
//Set the opacity of the spiderLegs back to their correct value
|
|
|
1975 |
// The animations above override this until they complete.
|
|
|
1976 |
// If the initial opacity of the spiderlegs isn't 0 then they appear before the animation starts.
|
|
|
1977 |
if (L.Path.SVG) {
|
|
|
1978 |
this._group._forceLayout();
|
|
|
1979 |
|
|
|
1980 |
for (i = childMarkers.length - 1; i >= 0; i--) {
|
|
|
1981 |
m = childMarkers[i]._spiderLeg;
|
|
|
1982 |
|
|
|
1983 |
m.options.opacity = 0.5;
|
|
|
1984 |
m._path.setAttribute('stroke-opacity', 0.5);
|
|
|
1985 |
}
|
|
|
1986 |
}
|
|
|
1987 |
|
|
|
1988 |
setTimeout(function () {
|
|
|
1989 |
group._animationEnd();
|
|
|
1990 |
group.fire('spiderfied');
|
|
|
1991 |
}, 200);
|
|
|
1992 |
},
|
|
|
1993 |
|
|
|
1994 |
_animationUnspiderfy: function (zoomDetails) {
|
|
|
1995 |
var group = this._group,
|
|
|
1996 |
map = group._map,
|
|
|
1997 |
fg = group._featureGroup,
|
|
|
1998 |
thisLayerPos = zoomDetails ? map._latLngToNewLayerPoint(this._latlng, zoomDetails.zoom, zoomDetails.center) : map.latLngToLayerPoint(this._latlng),
|
|
|
1999 |
childMarkers = this.getAllChildMarkers(),
|
|
|
2000 |
svg = L.Path.SVG && this.SVG_ANIMATION,
|
|
|
2001 |
m, i, a;
|
|
|
2002 |
|
|
|
2003 |
group._animationStart();
|
|
|
2004 |
|
|
|
2005 |
//Make us visible and bring the child markers back in
|
|
|
2006 |
this.setOpacity(1);
|
|
|
2007 |
for (i = childMarkers.length - 1; i >= 0; i--) {
|
|
|
2008 |
m = childMarkers[i];
|
|
|
2009 |
|
|
|
2010 |
//Marker was added to us after we were spidified
|
|
|
2011 |
if (!m._preSpiderfyLatlng) {
|
|
|
2012 |
continue;
|
|
|
2013 |
}
|
|
|
2014 |
|
|
|
2015 |
//Fix up the location to the real one
|
|
|
2016 |
m.setLatLng(m._preSpiderfyLatlng);
|
|
|
2017 |
delete m._preSpiderfyLatlng;
|
|
|
2018 |
//Hack override the location to be our center
|
|
|
2019 |
if (m.setOpacity) {
|
|
|
2020 |
m._setPos(thisLayerPos);
|
|
|
2021 |
m.setOpacity(0);
|
|
|
2022 |
} else {
|
|
|
2023 |
fg.removeLayer(m);
|
|
|
2024 |
}
|
|
|
2025 |
|
|
|
2026 |
//Animate the spider legs back in
|
|
|
2027 |
if (svg) {
|
|
|
2028 |
a = m._spiderLeg._path.childNodes[0];
|
|
|
2029 |
a.setAttribute('to', a.getAttribute('from'));
|
|
|
2030 |
a.setAttribute('from', 0);
|
|
|
2031 |
a.beginElement();
|
|
|
2032 |
|
|
|
2033 |
a = m._spiderLeg._path.childNodes[1];
|
|
|
2034 |
a.setAttribute('from', 0.5);
|
|
|
2035 |
a.setAttribute('to', 0);
|
|
|
2036 |
a.setAttribute('stroke-opacity', 0);
|
|
|
2037 |
a.beginElement();
|
|
|
2038 |
|
|
|
2039 |
m._spiderLeg._path.setAttribute('stroke-opacity', 0);
|
|
|
2040 |
}
|
|
|
2041 |
}
|
|
|
2042 |
|
|
|
2043 |
setTimeout(function () {
|
|
|
2044 |
//If we have only <= one child left then that marker will be shown on the map so don't remove it!
|
|
|
2045 |
var stillThereChildCount = 0;
|
|
|
2046 |
for (i = childMarkers.length - 1; i >= 0; i--) {
|
|
|
2047 |
m = childMarkers[i];
|
|
|
2048 |
if (m._spiderLeg) {
|
|
|
2049 |
stillThereChildCount++;
|
|
|
2050 |
}
|
|
|
2051 |
}
|
|
|
2052 |
|
|
|
2053 |
|
|
|
2054 |
for (i = childMarkers.length - 1; i >= 0; i--) {
|
|
|
2055 |
m = childMarkers[i];
|
|
|
2056 |
|
|
|
2057 |
if (!m._spiderLeg) { //Has already been unspiderfied
|
|
|
2058 |
continue;
|
|
|
2059 |
}
|
|
|
2060 |
|
|
|
2061 |
|
|
|
2062 |
if (m.setOpacity) {
|
|
|
2063 |
m.setOpacity(1);
|
|
|
2064 |
m.setZIndexOffset(0);
|
|
|
2065 |
}
|
|
|
2066 |
|
|
|
2067 |
if (stillThereChildCount > 1) {
|
|
|
2068 |
fg.removeLayer(m);
|
|
|
2069 |
}
|
|
|
2070 |
|
|
|
2071 |
map.removeLayer(m._spiderLeg);
|
|
|
2072 |
delete m._spiderLeg;
|
|
|
2073 |
}
|
|
|
2074 |
group._animationEnd();
|
|
|
2075 |
}, 200);
|
|
|
2076 |
}
|
|
|
2077 |
});
|
|
|
2078 |
|
|
|
2079 |
|
|
|
2080 |
L.MarkerClusterGroup.include({
|
|
|
2081 |
//The MarkerCluster currently spiderfied (if any)
|
|
|
2082 |
_spiderfied: null,
|
|
|
2083 |
|
|
|
2084 |
_spiderfierOnAdd: function () {
|
|
|
2085 |
this._map.on('click', this._unspiderfyWrapper, this);
|
|
|
2086 |
|
|
|
2087 |
if (this._map.options.zoomAnimation) {
|
|
|
2088 |
this._map.on('zoomstart', this._unspiderfyZoomStart, this);
|
|
|
2089 |
}
|
|
|
2090 |
//Browsers without zoomAnimation or a big zoom don't fire zoomstart
|
|
|
2091 |
this._map.on('zoomend', this._noanimationUnspiderfy, this);
|
|
|
2092 |
|
|
|
2093 |
if (L.Path.SVG && !L.Browser.touch) {
|
|
|
2094 |
this._map._initPathRoot();
|
|
|
2095 |
//Needs to happen in the pageload, not after, or animations don't work in webkit
|
|
|
2096 |
// http://stackoverflow.com/questions/8455200/svg-animate-with-dynamically-added-elements
|
|
|
2097 |
//Disable on touch browsers as the animation messes up on a touch zoom and isn't very noticable
|
|
|
2098 |
}
|
|
|
2099 |
},
|
|
|
2100 |
|
|
|
2101 |
_spiderfierOnRemove: function () {
|
|
|
2102 |
this._map.off('click', this._unspiderfyWrapper, this);
|
|
|
2103 |
this._map.off('zoomstart', this._unspiderfyZoomStart, this);
|
|
|
2104 |
this._map.off('zoomanim', this._unspiderfyZoomAnim, this);
|
|
|
2105 |
|
|
|
2106 |
this._unspiderfy(); //Ensure that markers are back where they should be
|
|
|
2107 |
},
|
|
|
2108 |
|
|
|
2109 |
|
|
|
2110 |
//On zoom start we add a zoomanim handler so that we are guaranteed to be last (after markers are animated)
|
|
|
2111 |
//This means we can define the animation they do rather than Markers doing an animation to their actual location
|
|
|
2112 |
_unspiderfyZoomStart: function () {
|
|
|
2113 |
if (!this._map) { //May have been removed from the map by a zoomEnd handler
|
|
|
2114 |
return;
|
|
|
2115 |
}
|
|
|
2116 |
|
|
|
2117 |
this._map.on('zoomanim', this._unspiderfyZoomAnim, this);
|
|
|
2118 |
},
|
|
|
2119 |
_unspiderfyZoomAnim: function (zoomDetails) {
|
|
|
2120 |
//Wait until the first zoomanim after the user has finished touch-zooming before running the animation
|
|
|
2121 |
if (L.DomUtil.hasClass(this._map._mapPane, 'leaflet-touching')) {
|
|
|
2122 |
return;
|
|
|
2123 |
}
|
|
|
2124 |
|
|
|
2125 |
this._map.off('zoomanim', this._unspiderfyZoomAnim, this);
|
|
|
2126 |
this._unspiderfy(zoomDetails);
|
|
|
2127 |
},
|
|
|
2128 |
|
|
|
2129 |
|
|
|
2130 |
_unspiderfyWrapper: function () {
|
|
|
2131 |
/// <summary>_unspiderfy but passes no arguments</summary>
|
|
|
2132 |
this._unspiderfy();
|
|
|
2133 |
},
|
|
|
2134 |
|
|
|
2135 |
_unspiderfy: function (zoomDetails) {
|
|
|
2136 |
if (this._spiderfied) {
|
|
|
2137 |
this._spiderfied.unspiderfy(zoomDetails);
|
|
|
2138 |
}
|
|
|
2139 |
},
|
|
|
2140 |
|
|
|
2141 |
_noanimationUnspiderfy: function () {
|
|
|
2142 |
if (this._spiderfied) {
|
|
|
2143 |
this._spiderfied._noanimationUnspiderfy();
|
|
|
2144 |
}
|
|
|
2145 |
},
|
|
|
2146 |
|
|
|
2147 |
//If the given layer is currently being spiderfied then we unspiderfy it so it isn't on the map anymore etc
|
|
|
2148 |
_unspiderfyLayer: function (layer) {
|
|
|
2149 |
if (layer._spiderLeg) {
|
|
|
2150 |
this._featureGroup.removeLayer(layer);
|
|
|
2151 |
|
|
|
2152 |
layer.setOpacity(1);
|
|
|
2153 |
//Position will be fixed up immediately in _animationUnspiderfy
|
|
|
2154 |
layer.setZIndexOffset(0);
|
|
|
2155 |
|
|
|
2156 |
this._map.removeLayer(layer._spiderLeg);
|
|
|
2157 |
delete layer._spiderLeg;
|
|
|
2158 |
}
|
|
|
2159 |
}
|
|
|
2160 |
});
|
|
|
2161 |
|
|
|
2162 |
|
|
|
2163 |
}(window, document));
|