prajna.viz.arrange

Class FocusArrangement<N>

java.lang.Object

prajna.viz.arrange.AbstractArrangement<N>

prajna.viz.arrange.FocusArrangement<N>

Type Parameters:

N - the node type of the arrangement

All Implemented Interfaces:

Arrangement<N>

Direct Known Subclasses:

TargetArrangement, TierArrangement

public abstract class FocusArrangement<N>
extends AbstractArrangement<N>

Arrangement interface for those arrangements which focus on a particular node. This interface is particularly useful for those arrangements where the selected node has some significance to the arrangement, for instance being in the center of the display.

Author:

Edward Swing

Constructor Summary

Constructors

Constructor and Description
FocusArrangement()

Method Summary

Methods

Modifier and Type	Method and Description
<E> N	focusOnMostConnected(Graph<N,E> graph) Select the most connected graph node to focus on.
N	getFocusNode() Get the current focus node
void	setFocusNode(N node) Set the current focus node

Methods inherited from class prajna.viz.arrange.AbstractArrangement

getMargin, getNodeLocation, getSize, invalidate, setMargin, setNodeLocation, setSize, setSize

Methods inherited from class java.lang.Object

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

Constructor Detail

FocusArrangement

public FocusArrangement()

Method Detail

focusOnMostConnected

public <E> N focusOnMostConnected(Graph<N,E> graph)

Select the most connected graph node to focus on. This method determines which graph node has the most edges, and selects that one to be the focus node. If two nodes have the same number of edges, this method selects one arbitrarily.

Type Parameters:

E - The edge class of the graph

Parameters:

graph - The graph to select the node from

Returns:

the selected focus node

getFocusNode

public N getFocusNode()

Get the current focus node

Returns:

the focus node

setFocusNode

public void setFocusNode(N node)

Set the current focus node

Parameters:

node - the focus node