org.conqat.lib.commons.treemap

Class CushionTreeMapRenderer

java.lang.Object

org.conqat.lib.commons.treemap.CushionTreeMapRenderer

All Implemented Interfaces:

ITreeMapRenderer

public class CushionTreeMapRenderer
extends java.lang.Object
implements ITreeMapRenderer

A tree map renderer using "cushions" as described in J. van Wijk, H. van de Wetering: "Cushion Treemaps: Visualization of Hierarchical Information".

Author:

Benjamin Hummel

Constructor Summary

Constructors

Constructor and Description
CushionTreeMapRenderer(double h, double f) Constructor.

Method Summary

Modifier and Type	Method and Description
<T> void	renderTreeMap(ITreeMapNode<T> node, java.awt.Graphics2D graphics) Renders the given tree into the graphics.

Methods inherited from class java.lang.Object

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

Constructor Detail

CushionTreeMapRenderer

public CushionTreeMapRenderer(double h,
                              double f)

Constructor.

Parameters:

h - the height parameter giving the heigt of the cushions relative to their size. 0.5 seems to be a reasonable value.

f - the scale factor used to reduce the heights of nested cushions. The value should be between 0 and 1, where smaller values will reduce the cushion effect.

Method Detail

renderTreeMap

public <T> void renderTreeMap(ITreeMapNode<T> node,
                              java.awt.Graphics2D graphics)

Renders the given tree into the graphics. The position is determined by the rectangle of the topmost node of the tree given.

Specified by:

renderTreeMap in interface ITreeMapRenderer

Parameters:

node - the tree to render. The tree must have been layouted and the outermost rectangle should be completely included in the provided graphics.

graphics - the graphics used for drawing.