Interactive Hierarchical Layout Demo
        
          This demo shows the
          from sketch mode
          of the hierarchical layout. Each user action triggers a run of this layout style to ensure
          that the current state of the graph is always well-organized but remains still similar to
          the previous arrangement.
        
        The layers of the layout are visualized in the background of the graph.
        Things to Try
        
          - 
            Move and resize nodes and watch the layout update. During moves the target layer is
            indicated.
          
- Create edges and see the routes being recalculated immediately.
- 
            Create new nodes and observe how they are inserted into the drawing near the place they
            have been created.
          
- 
            Drag the first and last bend (or create one) of an edge to interactively assign or reset
            port candidates.
          
- 
            Use the context menu to reroute selected edges or optimize selected node locations.