edu.uci.ics.jung.visualization.spatial

Class FastRenderingLayout<V,E>

java.lang.Object

edu.uci.ics.jung.visualization.spatial.FastRenderingLayout<V,E>

Type Parameters:

V - the vertex type

E - the edge type

All Implemented Interfaces:

com.google.common.base.Function<V,Point2D>, Layout<V,E>

public class FastRenderingLayout<V,E>
extends Object
implements Layout<V,E>

break into several rectangular areas, each of which will have a reference Graph

Author:

tanelso

Field Summary

Fields

Modifier and Type	Field and Description
protected Graph<V,E>	graph
protected Rectangle2D[][]	grid
protected Layout<V,E>	layout

Constructor Summary

Constructors

Constructor and Description
FastRenderingLayout(Layout<V,E> layout)

Method Summary

Modifier and Type	Method and Description
Point2D	apply(V arg0)
Graph<V,E>	getGraph()
Dimension	getSize()
void	initialize() Initializes fields in the node that may not have been set during the constructor.
boolean	isLocked(V v)
void	lock(V v, boolean state) Locks or unlocks the specified vertex.
void	reset()
void	setGraph(Graph<V,E> graph)
void	setInitializer(com.google.common.base.Function<V,Point2D> initializer)
void	setLocation(V v, Point2D location) Changes the layout coordinates of v to location.
void	setSize(Dimension d)

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.google.common.base.Function

equals

Field Detail

layout

protected Layout<V,E> layout

graph

protected Graph<V,E> graph

grid

protected Rectangle2D[][] grid

Constructor Detail

FastRenderingLayout

public FastRenderingLayout(Layout<V,E> layout)

Method Detail

getGraph

public Graph<V,E> getGraph()

Specified by:

getGraph in interface Layout<V,E>

Returns:

the graph that this Layout refers to

getSize

public Dimension getSize()

Specified by:

getSize in interface Layout<V,E>

Returns:

the current size of the visualization's space

initialize

public void initialize()

Description copied from interface: Layout

Initializes fields in the node that may not have been set during the constructor. Must be called before the iterations begin.

Specified by:

initialize in interface Layout<V,E>

isLocked

public boolean isLocked(V v)

Specified by:

isLocked in interface Layout<V,E>

Parameters:

v - the vertex whose locked state is being queried

Returns:

true if the position of vertex v is locked

lock

public void lock(V v,
                 boolean state)

Description copied from interface: Layout

Locks or unlocks the specified vertex. Locking the vertex fixes it at its current position, so that it will not be affected by the layout algorithm. Unlocking it allows the layout algorithm to change the vertex's position.

Specified by:

lock in interface Layout<V,E>

Parameters:

v - the vertex to lock/unlock

state - true to lock the vertex, false to unlock it

reset

public void reset()

Specified by:

reset in interface Layout<V,E>

setGraph

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

Specified by:

setGraph in interface Layout<V,E>

Parameters:

graph - the graph that this algorithm is to operate on

setInitializer

public void setInitializer(com.google.common.base.Function<V,Point2D> initializer)

Specified by:

setInitializer in interface Layout<V,E>

Parameters:

initializer - a function that specifies initial locations for all vertices

setLocation

public void setLocation(V v,
                        Point2D location)

Description copied from interface: Layout

Changes the layout coordinates of v to location.

Specified by:

setLocation in interface Layout<V,E>

Parameters:

v - the vertex whose location is to be specified

location - the coordinates of the specified location

setSize

public void setSize(Dimension d)

Specified by:

setSize in interface Layout<V,E>

Parameters:

d - the space to use to lay out this graph

apply

public Point2D apply(V arg0)

Specified by:

apply in interface com.google.common.base.Function<V,Point2D>