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L.Cluster = L.Marker.extend({
initialize: function(marker, proprietes, options) {
L.Marker.prototype.initialize.call(this, marker, options);
this._proprietes = [proprietes];
},
ajouterPoint: function(proprietes) {
this._proprietes.push(proprietes);
this.setIcon(new L.Icon({ iconUrl : clusterImageUrl, iconSize : [20, 20] }));
},
recupererPoints: function() {
return this._proprietes;
},
obtenirNombrePoints: function() {
return this._proprietes.length;
},
supprimerSource: function(sourceSupression) {
var index = 0;
while (index < this._markers.length) {
if (this._proprietes[index].source == sourceSupression) {
this._proprietes.splice(index, 1);
} else {
index ++;
}
}
if (this._markers.length == 0) {
if (this._map != null) {
this._map.removeLayer(this);
}
delete this;
}
},
supprimer: function() {
while (this._proprietes.length > 0) {
this._proprietes.splice(0, 1);
}
if (this._map != null) {
this._map.removeLayer(this);
}
delete this;
}
});
L.ClusterGroup = L.FeatureGroup.extend({
initialize: function(layers) {
L.FeatureGroup.prototype.initialize.call(this, layers);
this._distance = 10;
this._resolution = 0;
this._nombreClusters = 0;
},
ajouterPoint: function(point, proprietes) {
if (this._resolution == 0) {
this._resolution = (2 * Math.PI * 6378137) / (256 * Math.pow(2, this._map.getZoom()));
}
var seuilCluster = this._distance * this._resolution;
var indexClusterPlusProche = this._chercherVoisinPlusProche(point);
var ajoute = false;
if (indexClusterPlusProche != null) {
var distance = this._layers[indexClusterPlusProche].getLatLng().distanceTo(point);
if (distance < seuilCluster) {
this._layers[indexClusterPlusProche].ajouterPoint(point, proprietes);
ajoute = true;
}
}
if (!ajoute) {
var cluster = creerMarqueur(point, proprietes);
this._layers[this._nombreClusters] = cluster;
this._nombreClusters ++;
}
},
_chercherVoisinPlusProche: function(point) {
var distance = -1;
var plusProche = null;
for (var numeroLayer in this._layers) {
if (typeof(this._layers[numeroLayer]) != 'undefined') {
var pointCluster = this._layers[numeroLayer].getLatLng();
if (distance == -1 || pointCluster.distanceTo(point) < distance) {
plusProche = numeroLayer;
distance = pointCluster.distanceTo(point);
}
}
}
return plusProche;
},
afficherClusters: function() {
for (var numeroLayer in this._layers) {
if (typeof(this._layers[numeroLayer]) != 'undefined') {
var layer = this._layers[numeroLayer];
if (layer.obtenirNombrePoints() > 1) {
layer.setIcon(new L.Icon({ iconUrl : clusterImageUrl, iconSize : [20, 20] }))
}
layer.addTo(map);
}
}
},
supprimerPoint: function(layer) {
this.removeLayer(layer);
}
});