aabbox3d Class Template Reference

#include <aabbox3d.h>

---

Detailed Description

template<class T>
class irr::core::aabbox3d< T >

Has some useful methods used with occlusion culling or clipping.

Public Member Functions

• aabbox3d (T minx, T miny, T minz, T maxx, T maxy, T maxz)
• aabbox3d (const vector3d< T > &init)
• aabbox3d (const vector3d< T > &min, const vector3d< T > &max)
• aabbox3d ()
• void addInternalBox (const aabbox3d< T > &b)
• void addInternalPoint (T x, T y, T z)
• void addInternalPoint (const vector3d< T > &p)
• EIntersectionRelation3D classifyPlaneRelation (const plane3d< f32 > &plane) const
• vector3d< T > getCenter () const

  returns center of the bounding box
  

• void getEdges (vector3d< T > *edges) const
• vector3d< T > getExtent () const

  returns extend of the box
  

• aabbox3d< T > getInterpolated (const aabbox3d< T > &other, f32 d) const
• bool intersectsWithBox (const aabbox3d< T > &other) const
• bool intersectsWithLine (const vector3d< T > &linemiddle, const vector3d< T > &linevect, T halflength) const
• bool intersectsWithLine (const line3d< T > &line) const
• bool isEmpty () const
• bool isFullInside (const aabbox3d< T > &other) const

  Returns if this box is completely inside the 'other' box.
  

• bool isPointInside (const vector3d< T > &p) const
• bool isPointTotalInside (const vector3d< T > &p) const
• bool operator!= (const aabbox3d< T > &other) const
• bool operator== (const aabbox3d< T > &other) const
• void repair ()

  repairs the box, if for example MinEdge and MaxEdge are swapped.
  

• void reset (const vector3d< T > &initValue)

  Resets the bounding box.
  

• void reset (const aabbox3d< T > &initValue)

  Resets the bounding box.
  

• void reset (T x, T y, T z)

  Resets the bounding box.
  

Data Fields

• vector3d< T > MaxEdge
• vector3d< T > MinEdge

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Constructor & Destructor Documentation

aabbox3d

(

)

[inline]

aabbox3d	(	const vector3d< T > &	min,
		const vector3d< T > &	max
	)			[inline]

aabbox3d

(

const vector3d< T > &

init

)

[inline]

aabbox3d	(	T	minx,
		T	miny,
		T	minz,
		T	maxx,
		T	maxy,
		T	maxz
	)			[inline]

---

Member Function Documentation

void addInternalBox

(

const aabbox3d< T > &

b

)

[inline]

Adds an other bounding box to the bounding box, causing it to grow bigger, if the box is outside of the box

Parameters:

b,:

Other bounding box to add into this box.

void addInternalPoint	(	T	x,
		T	y,
		T	z
	)			[inline]

Adds a point to the bounding box, causing it to grow bigger, if point is outside of the box.

Parameters:

	x,:	X Coordinate of the point to add to this box.
	y,:	Y Coordinate of the point to add to this box.
	z,:	Z Coordinate of the point to add to this box.

void addInternalPoint

(

const vector3d< T > &

p

)

[inline]

Adds a point to the bounding box, causing it to grow bigger, if point is outside of the box

Parameters:

p,:

Point to add into the box.

EIntersectionRelation3D classifyPlaneRelation

(

const plane3d< f32 > &

plane

)

const [inline]

Classifies a relation with a plane.

Parameters:

plane,:

Plane to classify relation to.

Returns:

Returns ISREL3D_FRONT if the box is in front of the plane, ISREL3D_BACK if the box is back of the plane, and ISREL3D_CLIPPED if is on both sides of the plane.

vector3d<T> getCenter

(

)

const [inline]

void getEdges

(

vector3d< T > *

edges

)

const [inline]

stores all 8 edges of the box into a array

Parameters:

edges,:

Pointer to array of 8 edges

vector3d<T> getExtent

(

)

const [inline]

aabbox3d<T> getInterpolated	(	const aabbox3d< T > &	other,
		f32	d
	)			const [inline]

Calculates a new interpolated bounding box.

Parameters:

	other,:	other box to interpolate between
	d,:	value between 0.0f and 1.0f.

bool intersectsWithBox

(

const aabbox3d< T > &

other

)

const [inline]

Determinates if the box intersects with an other box.

Parameters:

other,:

Other box to check a intersection with.

Returns:

Returns true if there is a intersection with the other box, otherwise false.

bool intersectsWithLine	(	const vector3d< T > &	linemiddle,
		const vector3d< T > &	linevect,
		T	halflength
	)			const [inline]

Tests if the box intersects with a line

Returns:

Returns true if there is an intersection and false if not.

bool intersectsWithLine

(

const line3d< T > &

line

)

const [inline]

Tests if the box intersects with a line

Parameters:

line,:

Line to test intersection with.

Returns:

Returns true if there is an intersection and false if not.

bool isEmpty

(

)

const [inline]

returns if the box is empty, which means that there is no space within the min and the max edge.

bool isFullInside

(

const aabbox3d< T > &

other

)

const [inline]

bool isPointInside

(

const vector3d< T > &

p

)

const [inline]

Determinates if a point is within this box.

Parameters:

p,:

Point to check.

Returns:

Returns true if the point is withing the box, and false if it is not.

bool isPointTotalInside

(

const vector3d< T > &

p

)

const [inline]

Determinates if a point is within this box and its borders.

Parameters:

p,:

Point to check.

Returns:

Returns true if the point is withing the box, and false if it is not.

bool operator!=

(

const aabbox3d< T > &

other

)

const [inline]

bool operator==

(

const aabbox3d< T > &

other

)

const [inline]

void repair

(

)

[inline]

void reset

(

const vector3d< T > &

initValue

)

[inline]

void reset

(

const aabbox3d< T > &

initValue

)

[inline]

void reset	(	T	x,
		T	y,
		T	z
	)			[inline]

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Field Documentation

vector3d<T> MaxEdge

vector3d<T> MinEdge

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