y.layout.hierarchic
Class EdgeReverser

java.lang.Object
  |
  +--y.layout.hierarchic.EdgeReverser

public class EdgeReverser

extends Object

Helper that reverses edges that are oriented in the wrong direction.

Constructor Summary

EdgeReverser()

Method Summary

void	reverseEdges(Graph g, EdgeList edgeList) Reverses the edges contained ion the given edge list
static EdgeList	reverseUpwardEdges(Graph g, NodeMap layerMap) Reverses edges in the given graph whose source node has a larger layer ID than the target node.

Methods inherited from class java.lang.Object

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

Constructor Detail

EdgeReverser

public EdgeReverser()

Method Detail

reverseUpwardEdges

public static EdgeList reverseUpwardEdges(Graph g,
                                          NodeMap layerMap)

Reverses edges in the given graph whose source node has a larger layer ID than the target node.

Parameters:

g - target graph

layerMap - node map that contains a layer ID for each node

Returns:

a list of edges that have been reversed

reverseEdges

public void reverseEdges(Graph g,
                         EdgeList edgeList)

Reverses the edges contained ion the given edge list

Parameters:

g - the graph containing the edges in edgeList

edgeList - contains to be reversed edges.