de.grogra.vecmath.geom
Class Octree.State

java.lang.Object
  de.grogra.vecmath.geom.Variables
      de.grogra.vecmath.geom.Octree.State

Enclosing class:

Octree

public abstract static class Octree.State
extends Variables

An instance of State represents the state which is needed for octree algorithms, namely for the methods Octree.computeIntersections(de.grogra.vecmath.geom.Line, int, de.grogra.vecmath.geom.IntersectionList, de.grogra.vecmath.geom.Intersection, de.grogra.vecmath.geom.Intersection, de.grogra.vecmath.geom.Octree.State) and Octree.Cell.getVolume(int, de.grogra.vecmath.geom.Octree.State). A suitable instance for a specific octree implementation is obtained by Octree.createState().

Author:

Ole Kniemeyer

Field Summary

protected CellIterator

cellIterator The cell iterator which is used to traverse the octree along a line.

Fields inherited from class de.grogra.vecmath.geom.Variables

cache, istack, tmpLine, tmpMatrix3, tmpPoint0, tmpPoint1, tmpPoint2, tmpPoint3, tmpVector0, tmpVector1, tmpVector2, tmpVector3

Constructor Summary

Octree.State()

Method Summary

abstract void	clear(int id) Clears any mark of volume id which has been set previously by mark(int) within this state.
abstract boolean	mark(int id) Marks the volume id within this state, returns true iff the volume has not yet been marked before within this state.

Methods inherited from class de.grogra.vecmath.geom.Variables

getISize, ienter, ipop, ipush, setISize

Methods inherited from class java.lang.Object

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

Field Detail

cellIterator

protected CellIterator cellIterator

The cell iterator which is used to traverse the octree along a line.

Constructor Detail

Octree.State

public Octree.State()

Method Detail

clear

public abstract void clear(int id)

Clears any mark of volume id which has been set previously by mark(int) within this state.

Parameters:

id - of the volume

See Also:

mark(int)

mark

public abstract boolean mark(int id)

Marks the volume id within this state, returns true iff the volume has not yet been marked before within this state.

Parameters:

id - id of the volume

Returns:

true iff the volume id is marked for the first time

See Also:

clear(int)