rlaramee
Class TriangleEdge

java.lang.Object
  |
  +--rlaramee.TriangleEdge

public class TriangleEdge

extends java.lang.Object

Description: A triangle edge object lies on the side of an AR octree node. It is placed there by a finer resolution octree node when that finer octree node identifies one of its (the fine node's) triangle edges on the side of its coarser neighbor node.

start date Mon 30 Apr 2001

Version:

1.0

Author:

Robert S Laramee

See Also:

OctreeARnode.java

Field Summary

private TriangleEdge	nextEdge a pointer to the next edge forms a chain
private SharedVertex	sharedVertex1 a triangle edge consists of 2 shared triangle vertices
private SharedVertex	sharedVertex2

Constructor Summary

TriangleEdge(SharedVertex sharedVertex1, SharedVertex sharedVertex2)
constructor

Method Summary

private TriangleEdge	getNextEdge()
SharedVertex	getSharedVertex(boolean firstVertex) Called from OctreeARnode.getChainStarter() .
byte	onFace() Called from OctreeARnode.getChainStarter() and ChainGang.faceWithMaxChains()
private void	setNextEdge(TriangleEdge triangleEdge)
private void	setSharedVertex(SharedVertex sharedVertex)
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

sharedVertex1

private SharedVertex sharedVertex1

a triangle edge consists of 2 shared triangle vertices

sharedVertex2

private SharedVertex sharedVertex2

nextEdge

private TriangleEdge nextEdge

a pointer to the next edge forms a chain

Constructor Detail

TriangleEdge

public TriangleEdge(SharedVertex sharedVertex1,
                    SharedVertex sharedVertex2)

constructor

Parameters:

sharedVertex1 - the 1st shared triangle vertex -either a shared edge triangle vertex or a shared facial triangle vertex

sharedVertex2 - the 2nd shared triangle vertex -either a shared edge triangle vertex or a shared facial triangle vertex

Method Detail

getSharedVertex

public SharedVertex getSharedVertex(boolean firstVertex)

Called from OctreeARnode.getChainStarter() .

Parameters:

firstEdge - TRUE if we are returning the 1st vertex

setSharedVertex

private void setSharedVertex(SharedVertex sharedVertex)

Parameters:

sharedVertex - one of 2 shared triangle vertices making up this triangle edge

getNextEdge

private TriangleEdge getNextEdge()

Returns:

this edge's next triangle edge

setNextEdge

private void setNextEdge(TriangleEdge triangleEdge)

Parameters:

this - edge's next triangle edge

onFace

public byte onFace()

Called from OctreeARnode.getChainStarter() and ChainGang.faceWithMaxChains()

Returns:

the coarse cube face that this trianlge edge is on

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

Returns:

the string representation of this trianlge edge