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/*
* L.LatLngBounds represents a rectangular area on the map in geographical coordinates.
*/
L.LatLngBounds = L.Class.extend({
initialize: function(southWest, northEast) { // (LatLng, LatLng) or (LatLng[])
if (!southWest) return;
var latlngs = (southWest instanceof Array ? southWest : [southWest, northEast]);
for (var i = 0, len = latlngs.length; i < len; i++) {
this.extend(latlngs[i]);
}
},
// extend the bounds to contain the given point
extend: function(/*LatLng*/ latlng) {
if (!this._southWest && !this._northEast) {
this._southWest = new L.LatLng(latlng.lat, latlng.lng);
this._northEast = new L.LatLng(latlng.lat, latlng.lng);
} else {
this._southWest.lat = Math.min(latlng.lat, this._southWest.lat);
this._southWest.lng = Math.min(latlng.lng, this._southWest.lng);
this._northEast.lat = Math.max(latlng.lat, this._northEast.lat);
this._northEast.lng = Math.max(latlng.lng, this._northEast.lng);
}
},
getCenter: function() /*-> LatLng*/ {
return new L.LatLng(
(this._southWest.lat + this._northEast.lat) / 2,
(this._southWest.lng + this._northEast.lng) / 2);
},
getSouthWest: function() { return this._southWest; },
getNorthEast: function() { return this._northEast; },
getNorthWest: function() {
return new L.LatLng(this._northEast.lat, this._southWest.lng);
},
getSouthEast: function() {
return new L.LatLng(this._southWest.lat, this._northEast.lng);
},
contains: function(/*LatLngBounds or LatLng*/ obj) /*-> Boolean*/ {
var sw = this._southWest,
ne = this._northEast,
sw2, ne2;
if (obj instanceof L.LatLngBounds) {
sw2 = obj.getSouthWest();
ne2 = obj.getNorthEast();
} else {
sw2 = ne2 = obj;
}
return (sw2.lat >= sw.lat) && (ne2.lat <= ne.lat) &&
(sw2.lng >= sw.lng) && (ne2.lng <= ne.lng);
}
});
//TODO International date line?
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