AABB Class Reference

#include <IceAABB.h>

List of all members.

Public Member Functions
inline_	AABB ()
	Constructor.
void	Extend (const Point &p)
inline_ void	GetCenter (Point &center) const
	Get box center.
inline_ float	GetCenter (udword axis) const
	Get component of the box's center along a given axis.
inline_ float	GetDepth () const
inline_ void	GetDiagonal (Point &diagonal) const
	Get box diagonal.
inline_ void	GetExtents (Point &extents) const
	Get box extents.
inline_ float	GetExtents (udword axis) const
	Get component of the box's extents along a given axis.
inline_ float	GetHeight () const
inline_ void	GetMax (Point &max) const
	Get max point of the box.
inline_ float	GetMax (udword axis) const
	Get component of the box's max point along a given axis.
inline_ void	GetMin (Point &min) const
	Get min point of the box.
inline_ float	GetMin (udword axis) const
	Get component of the box's min point along a given axis.
float	GetSize () const
inline_ float	GetVolume () const
	Volume.
inline_ float	GetWidth () const
inline_ bool	GomezIntersect (const AABB &a)
inline_ BOOL	Intersect (const AABB &a) const
inline_ BOOL	Intersect (const AABB &a, udword axis) const
inline_ BOOL	IsValid () const
inline_ AABB &	operator*= (float s)
	Operator for AABB *= float. Scales the extents, keeps same center.
inline_ AABB &	operator+= (const Point &trans)
	Operator for AABB += Point. Translates the box.
inline_ AABB &	operator/= (float s)
	Operator for AABB /= float. Scales the extents, keeps same center.
inline_ void	Rotate (const Matrix4x4 &mtx, AABB &aabb) const
void	SetCenterExtents (const Point &c, const Point &e)
void	SetEmpty ()
void	SetMinMax (const Point &min, const Point &max)
void	SetPoint (const Point &pt)
inline_	~AABB ()
	Destructor.
Public Attributes
	AABB_COMMON_METHODS
	Type-independent methods.
Private Attributes
Point	mCenter
	AABB Center.
Point	mExtents
	x, y and z extents

---

Detailed Description

AABB class.

Author:

Pierre Terdiman

Version:

1.0

Definition at line 267 of file IceAABB.h.

---

Constructor & Destructor Documentation

inline_ AABB::AABB

(

)

[inline]

Constructor.

Definition at line 271 of file IceAABB.h.

inline_ AABB::~AABB

(

)

[inline]

Destructor.

Definition at line 273 of file IceAABB.h.

---

Member Function Documentation

void AABB::Extend

(

const Point &

p

)

[inline]

Extends the AABB.

Parameters:

p	[in] the next point

Definition at line 324 of file IceAABB.h.

inline_ void AABB::GetCenter

(

Point &

center

)

const [inline]

Get box center.

Definition at line 353 of file IceAABB.h.

inline_ float AABB::GetCenter

(

udword

axis

)

const [inline]

Get component of the box's center along a given axis.

Definition at line 358 of file IceAABB.h.

inline_ float AABB::GetDepth

(

)

const [inline]

Definition at line 366 of file IceAABB.h.

inline_ void AABB::GetDiagonal

(

Point &

diagonal

)

const [inline]

Get box diagonal.

Definition at line 363 of file IceAABB.h.

inline_ void AABB::GetExtents

(

Point &

extents

)

const [inline]

Get box extents.

Definition at line 355 of file IceAABB.h.

inline_ float AABB::GetExtents

(

udword

axis

)

const [inline]

Get component of the box's extents along a given axis.

Definition at line 360 of file IceAABB.h.

inline_ float AABB::GetHeight

(

)

const [inline]

Definition at line 365 of file IceAABB.h.

inline_ void AABB::GetMax

(

Point &

max

)

const [inline]

Get max point of the box.

Definition at line 345 of file IceAABB.h.

inline_ float AABB::GetMax

(

udword

axis

)

const [inline]

Get component of the box's max point along a given axis.

Definition at line 350 of file IceAABB.h.

inline_ void AABB::GetMin

(

Point &

min

)

const [inline]

Get min point of the box.

Definition at line 343 of file IceAABB.h.

inline_ float AABB::GetMin

(

udword

axis

)

const [inline]

Get component of the box's min point along a given axis.

Definition at line 348 of file IceAABB.h.

float AABB::GetSize

(

)

const [inline]

Gets the size of the AABB. The size is defined as the longest extent.

Returns:

the size of the AABB

Definition at line 316 of file IceAABB.h.

inline_ float AABB::GetVolume

(

)

const [inline]

Volume.

Definition at line 369 of file IceAABB.h.

inline_ float AABB::GetWidth

(

)

const [inline]

Definition at line 364 of file IceAABB.h.

inline_ bool AABB::GomezIntersect

(

const AABB &

a

)

[inline]

The standard intersection method from Gamasutra. Just here to check its speed against the one above.

Parameters:

a	[in] the other AABB

Returns:

true on intersection

Definition at line 393 of file IceAABB.h.

inline_ BOOL AABB::Intersect

(

const AABB &

a

)

const [inline]

Computes the intersection between two AABBs.

Parameters:

a	[in] the other AABB

Returns:

true on intersection

Definition at line 378 of file IceAABB.h.

inline_ BOOL AABB::Intersect	(	const AABB &	a,
		udword	axis
	)		const [inline]

Computes the 1D-intersection between two AABBs, on a given axis.

Parameters:

a	[in] the other AABB
axis	[in] the axis (0, 1, 2)

Returns:

true on intersection

Definition at line 409 of file IceAABB.h.

inline_ BOOL AABB::IsValid

(

)

const [inline]

Checks the AABB is valid.

Returns:

true if the box is valid

Definition at line 450 of file IceAABB.h.

inline_ AABB& AABB::operator*=

(

float

s

)

[inline]

Operator for AABB *= float. Scales the extents, keeps same center.

Definition at line 460 of file IceAABB.h.

inline_ AABB& AABB::operator+=

(

const Point &

trans

)

[inline]

Operator for AABB += Point. Translates the box.

Definition at line 466 of file IceAABB.h.

inline_ AABB& AABB::operator/=

(

float

s

)

[inline]

Operator for AABB /= float. Scales the extents, keeps same center.

Definition at line 463 of file IceAABB.h.

inline_ void AABB::Rotate	(	const Matrix4x4 &	mtx,
		AABB &	aabb
	)		const [inline]

Recomputes the AABB after an arbitrary transform by a 4x4 matrix.

Parameters:

mtx	[in] the transform matrix
aabb	[out] the transformed AABB [can be *this]

Definition at line 424 of file IceAABB.h.

void AABB::SetCenterExtents	(	const Point &	c,
		const Point &	e
	)		[inline]

Setups an AABB from center & extents vectors.

Parameters:

c	[in] the center point
e	[in] the extents vector

Definition at line 294 of file IceAABB.h.

void AABB::SetEmpty

(

)

[inline]

Setups an empty AABB.

Definition at line 301 of file IceAABB.h.

void AABB::SetMinMax	(	const Point &	min,
		const Point &	max
	)		[inline]

Setups an AABB from min & max vectors.

Parameters:

min	[in] the min point
max	[in] the max point

Definition at line 285 of file IceAABB.h.

void AABB::SetPoint

(

const Point &

pt

)

[inline]

Setups a point AABB.

Definition at line 308 of file IceAABB.h.

---

Member Data Documentation

AABB::AABB_COMMON_METHODS

Type-independent methods.

Definition at line 276 of file IceAABB.h.

Point AABB::mCenter [private]

AABB Center.

Definition at line 472 of file IceAABB.h.

Point AABB::mExtents [private]

x, y and z extents

Definition at line 473 of file IceAABB.h.

---

The documentation for this class was generated from the following file:

• IceAABB.h