org.graffiti.plugins.algorithms.reingoldtilford
Class BusEdgeLayoutStrategy

java.lang.Object
  org.graffiti.plugins.algorithms.reingoldtilford.BusEdgeLayoutStrategy

All Implemented Interfaces:

EdgeLayoutStrategy

public class BusEdgeLayoutStrategy
extends Object
implements EdgeLayoutStrategy

Lays the edges reminiscent of a bus layout.

Version:

$Revision$ $Date$

Author:

Andreas Gleißner

See Also:

EdgeLayout.BUS

Constructor Summary

BusEdgeLayoutStrategy()

Method Summary

void	calculateContours(Tree tree, ReingoldTilfordAlgorithm algorithm) Creates and sets the contours of tree.
void	layEdges(Tree tree, double xOrigin, double yOrigin, ReingoldTilfordAlgorithm algorithm) Sets the ports and bends for the edges connecting the root node of tree with its subtrees.

Methods inherited from class java.lang.Object

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

Constructor Detail

BusEdgeLayoutStrategy

public BusEdgeLayoutStrategy()

Method Detail

calculateContours

public void calculateContours(Tree tree,
                              ReingoldTilfordAlgorithm algorithm)

Creates and sets the contours of tree.
Preconditions:
tree must contain at least 1 child.
The children of tree have been combined.

Specified by:

calculateContours in interface EdgeLayoutStrategy

Parameters:

tree - the tree whose contours are set.

algorithm - the Reingold-Tilford algorithm.

See Also:

EdgeLayout.calculateContours(Tree, ReingoldTilfordAlgorithm)

layEdges

public void layEdges(Tree tree,
                     double xOrigin,
                     double yOrigin,
                     ReingoldTilfordAlgorithm algorithm)

Sets the ports and bends for the edges connecting the root node of tree with its subtrees. Implementing methods must not directly query or set coordinates but rather use the methods ReingoldTilfordAlgorithm.createPort(String, double, double) and ReingoldTilfordAlgorithm.createCoordinateAttribute(String, double, double) .

Specified by:

layEdges in interface EdgeLayoutStrategy

Parameters:

tree - the tree layout whose edges are layed out.

xOrigin - the absolute x-coordinate of tree within the coordinate system of Gravisto.

yOrigin - the absolute x-coordinate of tree within the coordinate system of Gravisto.

algorithm - the Reingold-Tilford algorithm.

See Also:

Orientation, EdgeLayout.layEdges(Tree, double, double, ReingoldTilfordAlgorithm)