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include zoom in tile coords, simplify parsing tile keys

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This commit is contained in:
Vladimir Agafonkin 2014-03-20 13:58:15 -07:00
parent fefe4b78eb
commit 29a0eaef0f
1 changed files with 9 additions and 6 deletions
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15
src/layer/tile/GridLayer.js
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@ -372,6 +372,10 @@ L.GridLayer = L.Layer.extend({
return L.latLngBounds(this.options.bounds).intersects(tileBounds);
},
_keyToBounds: function (key) {
return this._tileCoordsToBounds(this._keyToTileCoords(key));
},
// converts tile coordinates to its geographical bounds
_tileCoordsToBounds: function (coords) {
@ -389,16 +393,15 @@ L.GridLayer = L.Layer.extend({
// converts tile coordinates to key for the tile cache
_tileCoordsToKey: function (coords) {
return coords.x + ':' + coords.y;
return coords.x + ':' + coords.y + ':' + coords.z;
},
// converts tile cache key to coordinates
_keyToTileCoords: function (key) {
var kArr = key.split(':'),
x = parseInt(kArr[0], 10),
y = parseInt(kArr[1], 10);
return new L.Point(x, y);
var k = key.split(':'),
coords = new L.Point(+k[0], +k[1]);
coords.z = +k[2];
return coords;
},
// remove any present tiles that are off the specified bounds