edu.uci.ics.jung.visualization.layout
Class CachingLayout<V,E>

java.lang.Object
  edu.uci.ics.jung.algorithms.layout.LayoutDecorator<V,E>
      edu.uci.ics.jung.visualization.layout.CachingLayout<V,E>

All Implemented Interfaces:

Layout<V,E>, IterativeContext, Caching, org.apache.commons.collections15.Transformer<V,Point2D>

public class CachingLayout<V,E>
extends LayoutDecorator<V,E>
implements Caching

A LayoutDecorator that caches locations in a clearable Map. This can be used to ensure that edge endpoints are always the same as vertex locations when they are drawn in the render loop during the time that the layout's relaxer thread is changing the locations.

Author:

Tom Nelson

See Also:

LayoutDecorator

Field Summary

protected Map<V,Point2D>

locationMap

Fields inherited from class edu.uci.ics.jung.algorithms.layout.LayoutDecorator

delegate

Constructor Summary

CachingLayout(Layout<V,E> delegate)

Method Summary

void	clear() clear cache
void	init() ititialize resources for a cache
void	setGraph(Graph<V,E> graph) setter for graph
Point2D	transform(V v)

Methods inherited from class edu.uci.ics.jung.algorithms.layout.LayoutDecorator

done, getDelegate, getGraph, getSize, initialize, isLocked, lock, reset, setDelegate, setInitializer, setLocation, setSize, step

Methods inherited from class java.lang.Object

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

Field Detail

locationMap

protected Map<V,Point2D> locationMap

Constructor Detail

CachingLayout

public CachingLayout(Layout<V,E> delegate)

Method Detail

setGraph

public void setGraph(Graph<V,E> graph)

Description copied from interface: Layout

setter for graph

Specified by:

setGraph in interface Layout<V,E>

Overrides:

setGraph in class LayoutDecorator<V,E>

clear

public void clear()

Description copied from interface: Caching

clear cache

Specified by:

clear in interface Caching

init

public void init()

Description copied from interface: Caching

ititialize resources for a cache

Specified by:

init in interface Caching

transform

public Point2D transform(V v)

Specified by:

transform in interface org.apache.commons.collections15.Transformer<V,Point2D>

Overrides:

transform in class LayoutDecorator<V,E>

See Also:

Transformer.transform(Object)