for (int i = graphStruct.containerNodes.maxlevel; i >=0; i--)
for (int i = graphStruct.containerNodes.getMaxLevelView(); i >=0; i--)
	public void perform(GraphStructure graphStruct)	{				for (int i = graphStruct.containerNodes.maxlevel; i >=0; i--)		{			Iterator containerIterator = graphStruct.containerNodes.getContainersAtLevel(i).iterator();			while (containerIterator.hasNext())			{				GEContainer node = (GEContainer) containerIterator.next();			//	node.calculateDimension();							}		}						SugiyamaLayoutAlgorithm algorithm = new SugiyamaLayoutAlgorithm();		SugiyamaLayoutController controller = new SugiyamaLayoutController();		algorithm.perform(graphStruct.getJGraph(), true, controller.getConfiguration());			/*			for (int i = 0; i <= graphStruct.containerNodes.maxlevel; i++)		{			Iterator containerIterator = graphStruct.containerNodes.getContainersAtLevel(i).iterator();			while (containerIterator.hasNext())			{				GEContainer node = (GEContainer) containerIterator.next();				node.layoutChildren();							}					}	*/								}