gumbo.graphic.probe
Class AbstractIntersectionNode

java.lang.Object
  |
  +--gumbo.util.AbstractDisposable
        |
        +--gumbo.util.relation.AbstractTreeNodeDelegator
              |
              +--gumbo.graphic.probe.AbstractIntersectionNode

All Implemented Interfaces:

Disposable, Graphic, GraphicGeometry, IntersectableGraphic, IntersectionNode, java.io.Serializable

public abstract class AbstractIntersectionNode

extends AbstractTreeNodeDelegator

implements IntersectionNode

A partial implementation of the IntersectionNode interface.

Version:

$Revision: 1.3 $

Author:

Jon Barrilleaux (jonb@jmbaai.com) of JMB and Associates Inc.

See Also:

Serialized Form

Constructor Summary

AbstractIntersectionNode()
Creates an instance.

Method Summary

boolean	canIntersectGraphic(GraphicGeometry intersector) Default implementation: As defined in IntersectionNode.
abstract IntersectableGraphic	getGraphicIntersectionTarget() Called by the system to get the intersection target at the start of each intersection operation.
TreeNode	getGraphicIntersectionTree() Gets the delegate tree node for this delegator's intersection tree.
boolean	intersectGraphic(GraphicGeometry intersector) Default implementation: As defined in IntersectionNode.

Methods inherited from class gumbo.util.relation.AbstractTreeNodeDelegator

getTreeNodeDelegate, implDispose, newTreeNodeDelegate

Methods inherited from class gumbo.util.AbstractDisposable

dispose, isDisposed

Methods inherited from class java.lang.Object

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

Methods inherited from interface gumbo.graphic.space.GraphicGeometry

getGraphicLocalSpace

Methods inherited from interface gumbo.graphic.Graphic

getGraphic

Methods inherited from interface gumbo.util.Disposable

dispose, isDisposed

Constructor Detail

AbstractIntersectionNode

public AbstractIntersectionNode()

Creates an instance.

Method Detail

getGraphicIntersectionTarget

public abstract IntersectableGraphic getGraphicIntersectionTarget()

Called by the system to get the intersection target at the start of each intersection operation. As such, the target can be computed dynamically, such as an immutable snapshot of a dynamically updated bound.

Specified by:

getGraphicIntersectionTarget in interface IntersectionNode

Returns:

Reference to the target. Null if none, possibly this node.

getGraphicIntersectionTree

public TreeNode getGraphicIntersectionTree()

Description copied from interface: IntersectionNode

Gets the delegate tree node for this delegator's intersection tree.

Specified by:

getGraphicIntersectionTree in interface IntersectionNode

Returns:

Reference to the delegate. Never null.

canIntersectGraphic

public boolean canIntersectGraphic(GraphicGeometry intersector)

Default implementation: As defined in IntersectionNode.

Specified by:

canIntersectGraphic in interface IntersectableGraphic

Parameters:

intersector - Value of the intersector. Never null.

Returns:

True if the intersection is supported.

intersectGraphic

public boolean intersectGraphic(GraphicGeometry intersector)

Default implementation: As defined in IntersectionNode.

Specified by:

intersectGraphic in interface IntersectableGraphic

Parameters:

intersector - Value of the intersector. Never null.

Returns:

True if an intersection occurs.