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Refactor and optimize attributions

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This commit is contained in:
Tom Payne
2012-08-02 16:07:10 +02:00
parent bee4cab2ac
commit e203944abf
3 changed files with 147 additions and 73 deletions
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src/ol/tile/tilecoveragearea.js
+17 -5
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@@ -25,14 +25,16 @@ ol.TileCoverageArea = function(tileGrid, extent, minZ, maxZ) {
this.tileGrid_ = tileGrid;
/**
* @private
* @type {number}
*/
this.minZ = minZ;
this.minZ_ = minZ;
/**
* @private
* @type {number}
*/
this.maxZ = maxZ;
this.maxZ_ = maxZ;
};
goog.inherits(ol.TileCoverageArea, ol.CoverageArea);
@@ -44,8 +46,17 @@ goog.inherits(ol.TileCoverageArea, ol.CoverageArea);
ol.TileCoverageArea.prototype.intersectsExtentAndResolution =
function(extent, resolution) {
var z = this.tileGrid_.getZForResolution(resolution);
return this.minZ <= z && z <= this.maxZ &&
goog.base(this, 'intersectsExtentAndResolution', extent, resolution);
return this.intersectsExtentAndZ(extent, z);
};
/**
* @param {ol.Extent} extent Extent.
* @param {number} z Z.
* @return {boolean} Intersects.
*/
ol.TileCoverageArea.prototype.intersectsExtentAndZ = function(extent, z) {
return this.minZ_ <= z && z <= this.maxZ_ && this.intersectsExtent(extent);
};
@@ -55,5 +66,6 @@ ol.TileCoverageArea.prototype.intersectsExtentAndResolution =
*/
ol.TileCoverageArea.prototype.transform = function(transformFn) {
var extent = this.extent.transform(transformFn);
return new ol.TileCoverageArea(this.tileGrid_, extent, this.minZ, this.maxZ);
return new ol.TileCoverageArea(
this.tileGrid_, extent, this.minZ_, this.maxZ_);
};