Package org.jungrapht.visualization.spatial

Class AbstractSpatial<T,NT>

java.lang.Object

org.jungrapht.visualization.spatial.AbstractSpatial<T,NT>

Type Parameters:

T - the element type that is managed by the spatial data structure. Node or Edge

NT - the node type for the LayoutModel reference. Could be the same as T.

All Implemented Interfaces:

LayoutStateChange.Listener, LayoutVertexPositionChange.Listener<NT>, Spatial<T,NT>

Direct Known Subclasses:

Spatial.NoOp, SpatialGrid, SpatialQuadTree, SpatialRTree

public abstract class AbstractSpatial<T,NT>
extends Object
implements Spatial<T,NT>

Nested Class Summary

Nested classes/interfaces inherited from interface org.jungrapht.visualization.spatial.Spatial

Spatial.NoOp<T,NT>

Field Summary

Fields

Modifier and Type	Field	Description
protected List<Shape>	gridCache	a memoization of the grid rectangles used for rendering as Paintables for debugging
protected LayoutModel<NT>	layoutModel	the layoutModel that the structure operates on
protected Collection<Shape>	pickShapes
protected Rectangle2D	rectangle

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractSpatial(LayoutModel<NT> layoutModel)

Method Summary

Modifier and Type	Method	Description
protected NT	getClosest(Collection<NT> nodes, double x, double y, double radius)
LayoutModel<NT>	getLayoutModel()
Collection<Shape>	getPickShapes()	a short-lived collection of recent pick target areas
boolean	isActive()
void	layoutStateChanged(LayoutStateChange.Event evt)
void	setActive(boolean active)	a flag to suggest whether or not the spatial structure should be used

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.jungrapht.visualization.layout.event.LayoutVertexPositionChange.Listener

layoutVertexPositionChanged, layoutVertexPositionChanged

Methods inherited from interface org.jungrapht.visualization.spatial.Spatial

clear, getClosestElement, getClosestElement, getContainingLeaf, getContainingLeafs, getContainingLeafs, getGrid, getLayoutArea, getUnion, getUnion, getVisibleElements, recalculate, setBounds, update

Field Detail

rectangle

protected Rectangle2D rectangle

pickShapes

protected Collection<Shape> pickShapes

gridCache

protected List<Shape> gridCache

a memoization of the grid rectangles used for rendering as Paintables for debugging

layoutModel

protected LayoutModel<NT> layoutModel

the layoutModel that the structure operates on

Constructor Detail

AbstractSpatial

protected AbstractSpatial(LayoutModel<NT> layoutModel)

Method Detail

getPickShapes

public Collection<Shape> getPickShapes()

Description copied from interface: Spatial

a short-lived collection of recent pick target areas

Specified by:

getPickShapes in interface Spatial<T,NT>

Returns:

isActive

public boolean isActive()

Specified by:

isActive in interface Spatial<T,NT>

Returns:

a hint about whether the spatial structure should be used

setActive

public void setActive(boolean active)

Description copied from interface: Spatial

a flag to suggest whether or not the spatial structure should be used

Specified by:

setActive in interface Spatial<T,NT>

getLayoutModel

public LayoutModel<NT> getLayoutModel()

Specified by:

getLayoutModel in interface Spatial<T,NT>

getClosest

protected NT getClosest(Collection<NT> nodes,
                        double x,
                        double y,
                        double radius)

layoutStateChanged

public void layoutStateChanged(LayoutStateChange.Event evt)

Specified by:

layoutStateChanged in interface LayoutStateChange.Listener