y.layout.router
Class GroupNodeRouterStage

java.lang.Object
  y.layout.AbstractLayoutStage
      y.layout.router.GroupNodeRouterStage

All Implemented Interfaces:

Layouter, LayoutStage

public class GroupNodeRouterStage
extends AbstractLayoutStage

Layout stage for OrthogonalEdgeRouter that should be applied when routing edges in hierarchically grouped graphs. OrthogonalEdgeRouter itself is not well suited to route edges that connect to grouped nodes, since it considers all nodes (also group nodes!) as obstacles that should be avoided when determining the route of an edge.

Field Summary

Fields inherited from interface y.layout.Layouter

EDGE_ID_DPKEY, NODE_ID_DPKEY, SELECTED_EDGES, SELECTED_NODES

Constructor Summary

GroupNodeRouterStage()
Creates a new instance of this class.

GroupNodeRouterStage(Layouter coreLayouter)
Creates a new instance of this class.

Method Summary

boolean	canLayout(LayoutGraph graph) Returns true iff the given graph can be laid out by this algorithm.
void	doLayout(LayoutGraph graph) Main layout routine.

Methods inherited from class y.layout.AbstractLayoutStage

canLayoutCore, doLayoutCore, getCoreLayouter, setCoreLayouter

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GroupNodeRouterStage

public GroupNodeRouterStage()

Creates a new instance of this class.

GroupNodeRouterStage

public GroupNodeRouterStage(Layouter coreLayouter)

Creates a new instance of this class.

Parameters:

coreLayouter - the core layouter invoked by this stage. The coreLayouter must contain an instance of OrthogonalEdgeRouter in its layout pipeline.

Method Detail

canLayout

public boolean canLayout(LayoutGraph graph)

Description copied from interface: Layouter

Returns true iff the given graph can be laid out by this algorithm. Calling doLayout with the given graph as it's argument will only success if this method returns true.

doLayout

public void doLayout(LayoutGraph graph)

Main layout routine.

Precondition:

the coreLayouter must contain an instance of OrthogonalEdgeRouter in its layout pipeline.