y.layout.router
Class PartitionGridRouterStage

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

All Implemented Interfaces:

Layouter, LayoutStage

public class PartitionGridRouterStage
extends AbstractLayoutStage

PartitionGridRouterStage adds support for PartitionGrid to OrthogonalEdgeRouter.

Concept

Before the edge routing algorithm is invoked, the PartitionGrid information is modeled in the graph. Edges should not be routed back and forth between two PartitionCells. The graph structure is restored after the edges have been routed.

Graph containing a PartitionGrid

PartitionGridRouterStage will not have an effect with edge routing algorithms other than OrthogonalEdgeRouter.

See Also:

OrthogonalEdgeRouter, PartitionGrid

Field Summary

Fields inherited from interface y.layout.Layouter

EDGE_ID_DPKEY, NODE_ID_DPKEY, NODE_TYPE_DPKEY, SELECTED_EDGES, SELECTED_NODES

Constructor Summary

PartitionGridRouterStage()
Creates a new instance of PartitionGridRouterStage.

PartitionGridRouterStage(Layouter coreLayouter)
Creates a new instance of PartitionGridRouterStage using the given core layout algorithm.

Method Summary

boolean	canLayout(LayoutGraph graph) Accepts all graphs that are accepted by the core layout algorithm.
void	doLayout(LayoutGraph graph) Handles partition grids for the core layout algorithm.

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

PartitionGridRouterStage

public PartitionGridRouterStage()

Creates a new instance of PartitionGridRouterStage.

PartitionGridRouterStage will not have an effect with edge routing algorithms other than OrthogonalEdgeRouter. An according core layout algorithm must be set.

PartitionGridRouterStage

public PartitionGridRouterStage(Layouter coreLayouter)

Creates a new instance of PartitionGridRouterStage using the given core layout algorithm.

The core layout algorithm must contain an instance of OrthogonalEdgeRouter in its layout pipeline. Also, the scope of this routing algorithm needs to contain all edges of the graph.

Parameters:

coreLayouter - the core layout algorithm

Method Detail

canLayout

public boolean canLayout(LayoutGraph graph)

Accepts all graphs that are accepted by the core layout algorithm.

Parameters:

graph - the input graph

Returns:

true if the core layout algorithm can handle the graph, false otherwise

See Also:

Layouter.doLayout(LayoutGraph)

doLayout

public void doLayout(LayoutGraph graph)

Handles partition grids for the core layout algorithm.

Precondition:

The core layout algorithm must be an instance of OrthogonalEdgeRouter or at least must have such an instance in its layout pipeline.

Parameters:

graph - the input graph

See Also:

Layouter.canLayout(LayoutGraph)