Definition of a bounding box which is aligned along the axis (BBox AABB). More...

#include <BBox.h>

Public Member Functions
	BBox ()
	Default constructor. More...

	BBox (const vec3 &_pMin, const vec3 &_pMax)
	Constructor with initialization of the 3 points of the BBox. More...

	BBox (const BBox &other)
	Copy constructor. More...

vec3	getBBMin ()
	Return the lower point. More...

vec3	getBBMax ()
	Return the upper point. More...

vec3	getCentroid ()
	Return the center point. More...

void	setBBMin (vec3 &_pMin)
	Set the lower point (center point is recomputed) More...

void	setBBMax (vec3 &_pMax)
	Set the upper point (center point is recomputed) More...

double	SurfaceArea () const
	Return the BBox area (sum of the lateral areas). Used for the SAH calculation of the accelerators. More...

BBox	Union (const BBox &b, const vec3 &p)
	Union of a point and a BBox. A new BBox is created. More...

BBox	Union (const vec3 &p)
	Union of a point and the current (this) BBox. A new BBox is created. More...

BBox	Union (const BBox &b2)
	Union of a BBox and the current one. A new BBox is created. More...

BBox	Union (const BBox &b1, const BBox &b2)
	Union of two BBox. A new BBox is created. More...

bool	isInBox (const vec3 &p) const
	Check if a point is inside the BBox. More...

bool	intersectBox (const BBox &box)
	Test the intersection of a BBox with this one. More...

int	MaximumExtend () const
	Return the index of the dominant direction (maximal dimension). Index is 0 for x, 1 for y, 2 for z. More...

bool	IntersectP (vec3 pos, vec3 dir, decimal hitt0=NULL, decimal hitt1=NULL) const
	Compute the intersection between a Ray and this BBox. More...

vec3 &	operator[] (int i)
	Return the lower (0) or upper (1) point. More...

const vec3 &	operator[] (int i) const
	Return the lower (0) or upper (1) point. More...

decimal	diag ()
	Diagonal length of the BBox. More...

bool	Inside (const vec3 &pt) const
	Return true if the point pt is inside the BBox. More...

Public Attributes
vec3	pMin
	Lower point of the BBox. More...

vec3	pMax
	Upper point of the BBox. More...

vec3	centroid
	Center point of the BBox. More...

bool	isNull
	True if the BBox is initialized, false if not. More...

Detailed Description

Definition of a bounding box which is aligned along the axis (BBox AABB).

Definition at line 31 of file BBox.h.

Constructor & Destructor Documentation

◆ BBox() [1/3]

BBox::BBox ( )

inline

Default constructor.

Definition at line 44 of file BBox.h.

◆ BBox() [2/3]

BBox::BBox	(	const vec3 &	_pMin,
		const vec3 &	_pMax
	)

inline

Constructor with initialization of the 3 points of the BBox.

Parameters

_pMin	: Definition of the lower point
_pMax	: Definition of the upper point

Definition at line 51 of file BBox.h.

◆ BBox() [3/3]

BBox::BBox ( const BBox & other )

inline

Copy constructor.

Definition at line 54 of file BBox.h.

Member Function Documentation

◆ diag()

decimal BBox::diag ( )

inline

Diagonal length of the BBox.

Definition at line 283 of file BBox.h.

◆ getBBMax()

vec3 BBox::getBBMax ( )

inline

Return the upper point.

Definition at line 60 of file BBox.h.

◆ getBBMin()

vec3 BBox::getBBMin ( )

inline

Return the lower point.

Definition at line 57 of file BBox.h.

◆ getCentroid()

vec3 BBox::getCentroid ( )

inline

Return the center point.

Definition at line 63 of file BBox.h.

◆ Inside()

bool BBox::Inside ( const vec3 & pt ) const

inline

Return true if the point pt is inside the BBox.

Definition at line 286 of file BBox.h.

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◆ intersectBox()

bool BBox::intersectBox ( const BBox & box )

inline

Test the intersection of a BBox with this one.

Returns: Return true if they intersect. Also true if the BBox is included into the other.

Definition at line 179 of file BBox.h.

◆ IntersectP()

bool BBox::IntersectP	(	vec3	pos,
		vec3	dir,
		decimal *	hitt0 = `NULL`,
		decimal *	hitt1 = `NULL`
	)		const

inline

Compute the intersection between a Ray and this BBox.

Parameters

pos	[in] Ray position
dir	[in] Ray direction
hitt0	[out] Pointer to a float storing the t entering point of the ray from this BBox
hitt1	[out] Pointer to a float storing the t leaving point of the ray from this BBox

Returns: Return true if the ray is in contact with this BBox

Definition at line 214 of file BBox.h.

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◆ isInBox()

bool BBox::isInBox ( const vec3 & p ) const

inline

Check if a point is inside the BBox.

Returns: Return true if the point is inside

Definition at line 169 of file BBox.h.

◆ MaximumExtend()

int BBox::MaximumExtend ( ) const

inline

Return the index of the dominant direction (maximal dimension). Index is 0 for x, 1 for y, 2 for z.

Definition at line 189 of file BBox.h.

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◆ operator[]() [1/2]

vec3& BBox::operator[] ( int i )

inline

Return the lower (0) or upper (1) point.

Definition at line 270 of file BBox.h.

◆ operator[]() [2/2]

const vec3& BBox::operator[] ( int i ) const

inline

Return the lower (0) or upper (1) point.

Definition at line 276 of file BBox.h.

◆ setBBMax()

void BBox::setBBMax ( vec3 & _pMax )

inline

Set the upper point (center point is recomputed)

Definition at line 69 of file BBox.h.

◆ setBBMin()

void BBox::setBBMin ( vec3 & _pMin )

inline

Set the lower point (center point is recomputed)

Definition at line 66 of file BBox.h.

◆ SurfaceArea()

double BBox::SurfaceArea ( ) const

inline

Return the BBox area (sum of the lateral areas). Used for the SAH calculation of the accelerators.

Definition at line 72 of file BBox.h.

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◆ Union() [1/4]

BBox BBox::Union	(	const BBox &	b,
		const vec3 &	p
	)

inline

Union of a point and a BBox. A new BBox is created.

Parameters

b	: Initial BBox (will be not modified)
p	: Point to insert on the initial BBox

Returns: Return a new BBox

Definition at line 84 of file BBox.h.

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◆ Union() [2/4]

BBox BBox::Union ( const vec3 & p )

inline

Union of a point and the current (this) BBox. A new BBox is created.

Parameters

p	: Point to insert on the initial BBox

Returns: Return a new BBox

Definition at line 102 of file BBox.h.

◆ Union() [3/4]

BBox BBox::Union ( const BBox & b2 )

inline

Union of a BBox and the current one. A new BBox is created.

Parameters

b2	: A BBox (will be not modified)

Returns: Return a new BBox

Definition at line 121 of file BBox.h.

◆ Union() [4/4]

BBox BBox::Union	(	const BBox &	b1,
		const BBox &	b2
	)

inline

Union of two BBox. A new BBox is created.

Parameters

b1	: First BBox (will be not modified)
b2	: Second BBox (will be not modified)

Returns: Return a new BBox

Definition at line 152 of file BBox.h.

Member Data Documentation

◆ centroid

vec3 BBox::centroid

Center point of the BBox.

Definition at line 38 of file BBox.h.

◆ isNull

bool BBox::isNull

True if the BBox is initialized, false if not.

Definition at line 39 of file BBox.h.

◆ pMax

vec3 BBox::pMax

Upper point of the BBox.

Definition at line 37 of file BBox.h.

◆ pMin

vec3 BBox::pMin

Lower point of the BBox.

Definition at line 36 of file BBox.h.

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

/home/docs/checkouts/readthedocs.org/user_builds/codetympan/checkouts/latest/Tympan/geometric_methods/AcousticRaytracer/Geometry/BBox.h

Public Member Functions

Public Attributes

Detailed Description

Constructor & Destructor Documentation

◆ BBox() [1/3]

◆ BBox() [2/3]

◆ BBox() [3/3]

Member Function Documentation

◆ diag()

◆ getBBMax()

◆ getBBMin()

◆ getCentroid()

◆ Inside()

◆ intersectBox()

◆ IntersectP()

◆ isInBox()

◆ MaximumExtend()

◆ operator[]() [1/2]

◆ operator[]() [2/2]

◆ setBBMax()

◆ setBBMin()

◆ SurfaceArea()

◆ Union() [1/4]

◆ Union() [2/4]

◆ Union() [3/4]

◆ Union() [4/4]

Member Data Documentation

◆ centroid

◆ isNull

◆ pMax

◆ pMin