 			// request geometry tiles needed for desired dataBounds and zoom level (filter by XYZ)
 			var geometryTileIDs:Array = _geometryStreamDecoder.getRequiredGeometryTileIDs(dataBounds, lowestImportance, true);
 
-			if (_debug)
+			if (debug)
 			{
 				if (metadataTileIDs.length > 0)
 					JS.log(this, "requesting metadata tiles: " + metadataTileIDs);

			
			var self:Object = this;
			boundingBoxCallbacks.addImmediateCallback(this, function():void{
				if (_debug)
					DebugUtils.debugTrace(self,'boundingBoxCallbacks',boundingBoxCallbacks,'keys',keys.length);
			});
			addImmediateCallback(this, function():void{
				if (_debug)
					DebugUtils.debugTrace(self,'keys',keys.length);
			});
		}
		

	 */
	public class StreamedGeometryColumn extends AbstractAttributeColumn
	{
		public static var debug:Boolean = false;
		
		public function StreamedGeometryColumn(metadataTileDescriptors:JSByteArray, geometryTileDescriptors:JSByteArray, tileService:IWeaveGeometryTileService, metadata:Object = null)
		{
