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Add EMPTY tile state instead of using null for empty tiles

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This commit is contained in:
Tom Payne
2013-03-08 14:41:14 +01:00
parent 0a13344668
commit b729f969a7
9 changed files with 37 additions and 42 deletions
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7
src/ol/renderer/webgl/webgltilelayerrenderer.js
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@@ -385,10 +385,6 @@ ol.renderer.webgl.TileLayer.prototype.renderFrame =
tileCoord = new ol.TileCoord(z, x, y);
tile = tileSource.getTile(tileCoord, tileGrid, projection);
if (goog.isNull(tile)) {
continue;
}
tileState = tile.getState();
if (tileState == ol.TileState.IDLE) {
this.updateWantedTiles(frameState.wantedTiles, tileSource, tileCoord);
@@ -407,7 +403,8 @@ ol.renderer.webgl.TileLayer.prototype.renderFrame =
priority = Math.sqrt(deltaX * deltaX + deltaY * deltaY);
tilesToLoad.enqueue(priority, tile);
}
} else if (tileState == ol.TileState.ERROR) {
} else if (tileState == ol.TileState.ERROR ||
tileState == ol.TileState.EMPTY) {
continue;
}