 			setNewRandomJitterColumn();		
 			iterations.value = 50;
 			recordsPerDraw = 1;
-			init()
-		}		
-		
-		private function init():void
-		{
 			algorithms[RANDOM_LAYOUT] = RandomLayoutAlgorithm;
 			algorithms[GREEDY_LAYOUT] = GreedyLayoutAlgorithm;
 			algorithms[NEAREST_NEIGHBOR] = NearestNeighborLayoutAlgorithm;
 			algorithms[INCREMENTAL_LAYOUT] = IncrementalLayoutAlgorithm;
 			algorithms[BRUTE_FORCE] = BruteForceLayoutAlgorithm;
+			handleColumnsChange();
 		}
 		
 		public const columns:LinkableHashMap = registerSpatialProperty(new LinkableHashMap(IAttributeColumn), handleColumnsChange);

			_columns = columns.getObjects(IAttributeColumn);
			var sum:Number = 0;
			
			if (_columns.length > 0) 
			{
				setKeySource(_columns[0]);
			
				randomArrayIndexMap = 	new Dictionary(true);				
				keyMaxMap = 			new Dictionary(true);
				keyMinMap = 			new Dictionary(true);
				keyNormMap = 			new Dictionary(true);
				keyGlobalNormMap = 		new Dictionary(true);
				keyNumberMap = 			new Dictionary(true);
				columnTitleMap = 		new Dictionary(true);
				
				for each( var key:IQualifiedKey in keySet.keys)
				{					
					randomArrayIndexMap[key] = i ;										

		private var keyColorMap:Dictionary;
		private var keyNormMap:Dictionary;
		private var keyGlobalNormMap:Dictionary;
		private var columnTitleMap:Dictionary;
		
		private const _currentScreenBounds:Bounds2D = new Bounds2D();
