Module com.marginallyclever.robotoverlord

Package com.marginallyclever.ro3.mesh

Class AABB

java.lang.Object

com.marginallyclever.ro3.mesh.AABB

All Implemented Interfaces:

BoundingVolume, Serializable

public class AABB
extends Object
implements BoundingVolume, Serializable

AABB is a bounding box aligned to the world axies. Used for fast sorting and filtering.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
AABB()
AABB(AABB aabb)

Method Summary

Modifier and Type	Method	Description
javax.vecmath.Point3d	getBoundsBottom()
javax.vecmath.Point3d	getBoundsTop()
double	getCentroidAxis(int axis)	Return the nth component of the centroid.
double	getExtentX()
double	getExtentY()
double	getExtentZ()
Mesh	getShape()
void	grow(javax.vecmath.Point3d p)	Grow this AABB to include the point b.
RayAABBHit	intersect(Ray ray)
void	set(AABB b)
void	setBounds(javax.vecmath.Point3d newMax, javax.vecmath.Point3d newMin)
void	setShape(Mesh shape)
AABB[]	subdivide()	Subdivide this AABB into 8 smaller AABBs.
double	surfaceArea()
void	union(AABB other)	Grow this AABB to include the other AABB.

Methods inherited from class java.lang.Object

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

Constructor Details

AABB

public AABB()

AABB

public AABB(AABB aabb)

Method Details

set

public void set(AABB b)

setBounds

public void setBounds(javax.vecmath.Point3d newMax,
 javax.vecmath.Point3d newMin)

Parameters:

newMax - upper bounds

newMin - lower bounds

getBoundsTop

public javax.vecmath.Point3d getBoundsTop()

getBoundsBottom

public javax.vecmath.Point3d getBoundsBottom()

getExtentX

public double getExtentX()

getExtentY

public double getExtentY()

getExtentZ

public double getExtentZ()

setShape

public void setShape(Mesh shape)

getShape

public Mesh getShape()

intersect

public RayAABBHit intersect(Ray ray)

subdivide

public AABB[] subdivide()

Subdivide this AABB into 8 smaller AABBs.

Returns:

8 new AABBs that are subdivisions of this AABB.

grow

public void grow(javax.vecmath.Point3d p)

Grow this AABB to include the point b.

Parameters:

p - the point to include in the AABB.

union

public void union(AABB other)

Grow this AABB to include the other AABB.

Parameters:

other - the AABB to include in this AABB.

getCentroidAxis

public double getCentroidAxis(int axis)

Return the nth component of the centroid. The centroid is the midpoint between min and max limits.

Parameters:

axis - 0, 1,or 2.

Returns:

the nth component of the centroid. 0 for x, 1 for y, and all others for z.

surfaceArea

public double surfaceArea()

Returns:

the surface area of the entire AABB.