Package org.jbox2d.collision

Class AABB

java.lang.Object

org.jbox2d.collision.AABB

public class AABB
extends Object

An axis-aligned bounding box.

Author:

Daniel Murphy

Field Summary

Fields

Modifier and Type	Field	Description
final Vec2	lowerBound	The bottom left vertex of the bounding box.
final Vec2	upperBound	The top right vertex of the bounding box.

Constructor Summary

Constructors

Constructor	Description
AABB()	Creates the default object, with vertices at 0,0 and 0,0.
AABB(AABB copy)	Copies from the given object.
AABB(Vec2 lowerVertex, Vec2 upperVertex)	Creates an AABB object using the given bounding vertices.

Method Summary

Modifier and Type	Method	Description
final void	combine(AABB aabb)	Combines another aabb with this one.
final void	combine(AABB aabb1, AABB aab)	Combine two AABBs into this one.
final boolean	contains(AABB aabb)	Does this aabb contain the provided AABB.
final Vec2	getCenter()	Get the center of the AABB.
final void	getCenterToOut(Vec2 out)
final Vec2	getExtents()	Get the extents of the AABB (half-widths).
final void	getExtentsToOut(Vec2 out)
final float	getPerimeter()	Gets the perimeter length.
final void	getVertices(Vec2[] argRay)
final boolean	isValid()	Verify that the bounds are sorted.
final boolean	raycast(RayCastOutput output, RayCastInput input)	Deprecated. please use raycast(RayCastOutput, RayCastInput, WorldPool) for better performance
final boolean	raycast(RayCastOutput output, RayCastInput input, WorldPool argPool)	From Real-time Collision Detection, p179.
final void	set(AABB aabb)	Sets this object from the given object.
static boolean	testOverlap(AABB a, AABB b)
final String	toString()

Methods inherited from class java.lang.Object

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

Field Details

lowerBound

public final Vec2 lowerBound

The bottom left vertex of the bounding box.

upperBound

public final Vec2 upperBound

The top right vertex of the bounding box.

Constructor Details

AABB

public AABB()

Creates the default object, with vertices at 0,0 and 0,0.

AABB

public AABB(AABB copy)

Copies from the given object.

Parameters:

copy - The object to copy from.

AABB

public AABB(Vec2 lowerVertex,
 Vec2 upperVertex)

Creates an AABB object using the given bounding vertices.

Parameters:

lowerVertex - The bottom left vertex of the bounding box.

upperVertex - The top right vertex of the bounding box.

Method Details

set

public final void set(AABB aabb)

Sets this object from the given object.

Parameters:

aabb - The object to copy from.

isValid

public final boolean isValid()

Verify that the bounds are sorted.

getCenter

public final Vec2 getCenter()

Get the center of the AABB.

getCenterToOut

public final void getCenterToOut(Vec2 out)

getExtents

public final Vec2 getExtents()

Get the extents of the AABB (half-widths).

getExtentsToOut

public final void getExtentsToOut(Vec2 out)

getVertices

public final void getVertices(Vec2[] argRay)

combine

public final void combine(AABB aabb1,
 AABB aab)

Combine two AABBs into this one.

getPerimeter

public final float getPerimeter()

Gets the perimeter length.

combine

public final void combine(AABB aabb)

Combines another aabb with this one.

contains

public final boolean contains(AABB aabb)

Does this aabb contain the provided AABB.

raycast

public final boolean raycast(RayCastOutput output,
 RayCastInput input)

Deprecated.

please use raycast(RayCastOutput, RayCastInput, WorldPool) for better performance

raycast

public final boolean raycast(RayCastOutput output,
 RayCastInput input,
 WorldPool argPool)

From Real-time Collision Detection, p179.

testOverlap

public static boolean testOverlap(AABB a,
 AABB b)

toString

public final String toString()

Overrides:

toString in class Object