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Factor out updateTileUsage

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This commit is contained in:
Tom Payne
2013-01-17 11:51:38 +01:00
parent 9fbabc3696
commit b880ab80ee
3 changed files with 30 additions and 31 deletions
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17
src/ol/renderer/dom/domtilelayerrenderer.js
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@@ -89,21 +89,6 @@ ol.renderer.dom.TileLayer.prototype.renderFrame =
var tileRange = tileGrid.getTileRangeForExtentAndResolution(
frameState.extent, tileResolution);
// FIXME should also consider interim tiles
var tileUsage = frameState.tileUsage;
var tileSourceKey = goog.getUid(tileSource).toString();
var zKey = z.toString();
if (tileSourceKey in tileUsage) {
if (z in tileUsage[tileSourceKey]) {
tileUsage[tileSourceKey][zKey].extend(tileRange);
} else {
tileUsage[tileSourceKey][zKey] = tileRange;
}
} else {
tileUsage[tileSourceKey] = {};
tileUsage[tileSourceKey][zKey] = tileRange;
}
/** @type {Object.<number, Object.<string, ol.Tile>>} */
var tilesToDrawByZ = {};
tilesToDrawByZ[z] = {};
@@ -251,6 +236,8 @@ ol.renderer.dom.TileLayer.prototype.renderFrame =
frameState.animate = true;
}
this.updateTileUsage(frameState.tileUsage, tileSource, z, tileRange);
};