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Only update canvas if not dirty

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This commit is contained in:
Tim Schaub
2015-07-09 16:31:40 -06:00
parent d5aa0d9a8e
commit 643c2e6f21
1 changed files with 4 additions and 1 deletions
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src/ol/source/rastersource.js
+4 -1
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@@ -318,7 +318,10 @@ ol.source.Raster.prototype.onWorkerComplete_ =
this.dispatchEvent(new ol.source.RasterEvent( this.dispatchEvent(new ol.source.RasterEvent(
ol.source.RasterEventType.AFTEROPERATIONS, frameState, data)); ol.source.RasterEventType.AFTEROPERATIONS, frameState, data));
this.canvasContext_.putImageData(output, 0, 0); var resolution = frameState.viewState.resolution / frameState.pixelRatio;
if (!this.isDirty_(frameState.extent, resolution)) {
this.canvasContext_.putImageData(output, 0, 0);
}
callback(null); callback(null);
}; };