Subversion Repositories eFlore/Applications.moissonnage

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37 alex 1 
 
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L.Cluster = L.Marker.extend({
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	initialize: function(marker, options) {
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		L.Marker.prototype.initialize.call(this, marker, options);
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		this._markers = [this];
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	},
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	ajouterMarker: function(marker) {
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		this._markers.push(marker);
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	},
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	recupererMarkers: function() {
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		return this._markers;
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	},
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	obtenirNombreMarkers: function() {
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		return this._markers.length;
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	},
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	supprimerSource: function(sourceSupression) {
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		var index = 0;
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		while (index < this._markers.length) {
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			if (this._markers[index].source == sourceSupression) {
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				this._markers.splice(index, 1);
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			} else {
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				index ++;
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			}
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		}
42 alex 31 
		if (this._markers.length == 0) {
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			if (this._map != null) {
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				this._map.getPanes().markerPane.removeChild(this._icon);
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			}
37 alex 35 
			delete this;
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		}
42 alex 37 
	},
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	supprimer: function() {
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		while (this._markers.length > 0) {
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			this._markers.splice(0, 1);
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		}
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		if (this._map != null) {
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			this._map.getPanes().markerPane.removeChild(this._icon);
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		}
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		delete this;
37 alex 47 
	}
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});
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L.ClusterGroup = L.FeatureGroup.extend({
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	initialize: function(layers) {
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		L.FeatureGroup.prototype.initialize.call(this, layers);
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		this._distance = 10;
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		this._resolution = 0;
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		this._nombreClusters = 0;
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	},
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	ajouterPoint: function(layer) {
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		if (this._resolution == 0) {
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			this._resolution = (2 * Math.PI * 6378137) / (256 * Math.pow(2, this._map.getZoom()));
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		}
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		var seuilCluster = this._distance * this._resolution;
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		if (typeof(layer._latlng) != 'undefined') {
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			var indexClusterPlusProche = this._chercherVoisinPlusProche(layer);
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			var ajoute = false;
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			if (indexClusterPlusProche != null) {
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				var distance = this._layers[indexClusterPlusProche].getLatLng().distanceTo(layer.getLatLng());
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				if (distance < seuilCluster) {
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					this._layers[indexClusterPlusProche].ajouterMarker(layer);
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					ajoute = true;
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				}
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			}
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			if (!ajoute) {
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				this._layers[this._nombreClusters] = layer;
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				this._nombreClusters ++;
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			}
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		}
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	},
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	_chercherVoisinPlusProche: function(layer) {
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		var distance = -1;
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		var plusProche = null;
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		for (var numeroLayer in this._layers) {
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			if (typeof(this._layers[numeroLayer]) != 'undefined') {
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				var centre = this._layers[numeroLayer].getLatLng();
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				if (distance == -1 || centre.distanceTo(layer.getLatLng()) < distance) {
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					plusProche = numeroLayer;
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					distance = centre.distanceTo(layer.getLatLng());
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				}
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			}
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		}
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		return plusProche;
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	},
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	afficherClusters: function() {
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		for (var numeroLayer in this._layers) {
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			if (typeof(this._layers[numeroLayer]) != 'undefined') {
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				var layer = this._layers[numeroLayer];
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				if (layer.obtenirNombreMarkers() > 1) {
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					layer.setIcon(new L.Icon({ iconUrl : clusterImageUrl, iconSize : [20, 20] }))
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				}
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				layer.addTo(map);
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			}
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		}
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	},
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	supprimerPoint: function(layer) {
42 alex 112 
		layer.supprimer();
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	}
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});