3D box with an associated transformation matrix. More...

#include <Inventor/SbBox.h>

Inheritance diagram for SbXfBox3d:

Public Member Functions
	SbXfBox3d ()
	Constructor.

	SbXfBox3d (const SbVec3d &_min, const SbVec3d &_max)
	Constructor.

	SbXfBox3d (const SbBox3d &box)
	Constructor.

	~SbXfBox3d ()
	Destructor.

void	setTransform (const SbMatrixd &m)
	Sets the transformation on the box.

const SbMatrixd &	getTransform () const
	Gets the transformation on the box.

const SbMatrixd &	getInverse () const
	Gets the inverse of the transformation on the box.

SbVec3d	getCenter () const
	Returns the center of the box.

void	extendBy (const SbVec3d &pt)
	Extends the box (if necessary) to contain the given 3D point.

void	extendBy (const SbBox3d &bb)
	Extends the box (if necessary) to contain the given box.

void	extendBy (const SbXfBox3d &bb)
	Extends the box (if necessary) to contain the given box.

SbBool	intersect (const SbVec3d &pt) const
	Returns TRUE if intersection of given point and this box is not empty.

SbBool	intersect (const SbBox3d &bb) const
	Returns TRUE if intersection of this XfBox3d and the given Box3d is not empty.

SbXfBox3d &	setValue (const SbXfBox3f &xfbox3f)
	Sets value of the box from a single precision box.

void	setBounds (double xmin, double ymin, double zmin, double xmax, double ymax, double zmax)
	Sets the bounds of the box.

void	setBounds (const SbVec3d &_min, const SbVec3d &_max)
	Sets the bounds of the box.

void	getBounds (double &xmin, double &ymin, double &zmin, double &xmax, double &ymax, double &zmax) const
	Gets the bounds of the box.

void	getBounds (SbVec3d &_min, SbVec3d &_max) const
	Gets the bounds of the box.

void	getOrigin (double &originX, double &originY, double &originZ) const
	Returns origin (minimum point) of the box.

void	getSize (double &sizeX, double &sizeY, double &sizeZ) const
	Returns size of the box.

double	getVolume () const
	Gives the volume of the box (0 for an empty box).

void	makeEmpty ()
	Sets the box to contain nothing.

SbBool	isEmpty () const
	Returns TRUE if the box is empty, and FALSE otherwise.

SbBool	hasVolume () const
	Checks if the box has volume; i.e., all three dimensions have positive size.

void	getSpan (const SbVec3d &direction, double &dMin, double &dMax) const
	Finds the extent of the box along a particular direction.

void	transform (const SbMatrixd &m)
	Transforms the box by the given matrix.

SbBox3d	project () const
	Projects an SbXfBox3d to an SbBox3d.

Public Member Functions inherited from SbBox3d
	SbBox3d ()
	Constructor for a 3D double box.

	SbBox3d (double xmin, double ymin, double zmin, double xmax, double ymax, double zmax)
	Constructor for a 3D double box.

	SbBox3d (const SbVec3d &_min, const SbVec3d &_max)
	Constructor for a 3D double box.

	~SbBox3d ()
	Destructor.

const SbVec3d &	getMin () const
	Returns the minimum point of the box.

const SbVec3d &	getMax () const
	Returns the maximum point of the box.

SbVec3d &	getMin ()
	Returns the minimum point of the box.

SbVec3d &	getMax ()
	Returns the maximum point of the box.

SbVec3d	getCenter () const
	Returns the center of the box.

void	extendBy (const SbVec3d &pt)
	Extends this box (if necessary) to contain the specified point.

void	extendBy (const SbBox3d &bb)
	Extends this box (if necessary) to contain the specified box.

SbBool	intersect (const SbVec3d &pt) const
	Returns TRUE if the specified point intersects this box.

SbBool	intersect (const SbBox3d &bb) const
	Returns TRUE if the specified box intersects this box.

SbBox3d	intersection (const SbBox3d &box) const
	Returns the intersection of the specified box with this box.

SbBool	contains (const SbBox3d &bb) const
	Returns TRUE if the specified box is fully contained inside this box.

SbBool	outside (const SbMatrixd &MVP, int &cullBits) const
	Returns TRUE if bounding box is completely outside the view-volume defined by the model+view+projection matrix given.

void	setBounds (double xmin, double ymin, double zmin, double xmax, double ymax, double zmax)
	Sets the corners of the box.

void	setBounds (const SbVec3d &_min, const SbVec3d &_max)
	Sets the corners of the box.

void	getBounds (double &xmin, double &ymin, double &zmin, double &xmax, double &ymax, double &zmax) const
	Gets the corners of the box.

void	getBounds (SbVec3d &_min, SbVec3d &_max) const
	Gets the corners of the box.

SbVec3d	getClosestPoint (const SbVec3d &point) const
	Returns the closest point on the box to the given point.

void	getOrigin (double &originX, double &originY, double &originZ) const
	Gets box origin which is the same as the minimum corner of the box.

void	getSize (double &sizeX, double &sizeY, double &sizeZ) const
	Gets box size.

SbVec3d	getSize () const
	Gets box size.

void	makeEmpty ()
	Makes an empty box.

SbBool	isEmpty () const
	Returns TRUE if the box is empty, and FALSE otherwise.

SbBool	hasVolume () const
	Returns TRUE if all three dimensions of the box have positive size, and FALSE otherwise.

void	getSpan (const SbVec3d &direction, double &dMin, double &dMax) const
	Finds the span of a box along a specified direction.

void	transform (const SbMatrixd &m)
	Transforms box by matrix, enlarging box to contain result.

double	getVolume () const
	Returns the volume of the box.

template<typename T >
	SbBox3d (const T &b)
	Constructor that converts an arbitrary SbBox3 to an SbBox3f.

Friends
int	operator== (const SbXfBox3d &b1, const SbXfBox3d &b2)
	Equality comparison.

int	operator!= (const SbXfBox3d &b1, const SbXfBox3d &b2)
	Inequality comparison.

Detailed Description

3D box with an associated transformation matrix.

A 3D box with an arbitrary transformation applied. This class is useful when a box will be transformed frequently; if an SbBox3f is used for this purpose it will expand each time it is transformed in order to keep itself axis-aligned. Transformations can be accumulated on an SbXfBox3d without expanding the box, and after all transformations have been done, the box can be expanded to an axis-aligned box if necessary.

Constructor & Destructor Documentation

◆ SbXfBox3d() [1/3]

SbXfBox3d::SbXfBox3d ( )

Constructor.

The box is initially empty.

◆ SbXfBox3d() [2/3]

SbXfBox3d::SbXfBox3d	(	const SbVec3d &	_min,
		const SbVec3d &	_max
	)

Constructor.

◆ SbXfBox3d() [3/3]

SbXfBox3d::SbXfBox3d ( const SbBox3d & box )

Constructor.

◆ ~SbXfBox3d()

SbXfBox3d::~SbXfBox3d ( )

inline

Destructor.

Definition at line 1534 of file SbBox.h.

Member Function Documentation

◆ extendBy() [1/3]

void SbXfBox3d::extendBy ( const SbBox3d & bb )

inline

Extends the box (if necessary) to contain the given box.

Definition at line 1602 of file SbBox.h.

◆ extendBy() [2/3]

void SbXfBox3d::extendBy ( const SbVec3d & pt )

Extends the box (if necessary) to contain the given 3D point.

If the box has had a non-identity transformation applied using the setTransform() method, the point is assumed to be in the transformed space. For example, the following code sequence:

SbXfBox3d bbox;
bbox.extendBy(SbVec3f(0,0,0));
SbMatrix trans;
trans.setTranslate(SbVec3f(1,1,1));
bbox.setTransform(trans);
bbox.extendBy(SbVec3f(0,0,0));

will result in a bounding box extending from (-1,-1,-1) to (0,0,0) in the bbox's local (untransformed) space.

◆ extendBy() [3/3]

void SbXfBox3d::extendBy ( const SbXfBox3d & bb )

Extends the box (if necessary) to contain the given box.

◆ getBounds() [1/2]

void SbXfBox3d::getBounds	(	double &	xmin,
		double &	ymin,
		double &	zmin,
		double &	xmax,
		double &	ymax,
		double &	zmax
	)		const

inline

Gets the bounds of the box.

Definition at line 1642 of file SbBox.h.

◆ getBounds() [2/2]

void SbXfBox3d::getBounds	(	SbVec3d &	_min,
		SbVec3d &	_max
	)		const

inline

Gets the bounds of the box.

Definition at line 1650 of file SbBox.h.

◆ getCenter()

SbVec3d SbXfBox3d::getCenter ( ) const

Returns the center of the box.

◆ getInverse()

const SbMatrixd & SbXfBox3d::getInverse ( ) const

inline

Gets the inverse of the transformation on the box.

Definition at line 1551 of file SbBox.h.

◆ getOrigin()

void SbXfBox3d::getOrigin	(	double &	originX,
		double &	originY,
		double &	originZ
	)		const

inline

Returns origin (minimum point) of the box.

Definition at line 1656 of file SbBox.h.

◆ getSize()

void SbXfBox3d::getSize	(	double &	sizeX,
		double &	sizeY,
		double &	sizeZ
	)		const

inline

Returns size of the box.

Definition at line 1662 of file SbBox.h.

◆ getSpan()

void SbXfBox3d::getSpan	(	const SbVec3d &	direction,
		double &	dMin,
		double &	dMax
	)		const

inline

Finds the extent of the box along a particular direction.

Definition at line 1688 of file SbBox.h.

◆ getTransform()

const SbMatrixd & SbXfBox3d::getTransform ( ) const

inline

Gets the transformation on the box.

Definition at line 1545 of file SbBox.h.

◆ getVolume()

double SbXfBox3d::getVolume ( ) const

Gives the volume of the box (0 for an empty box).

◆ hasVolume()

SbBool SbXfBox3d::hasVolume ( ) const

inline

Checks if the box has volume; i.e., all three dimensions have positive size.

Definition at line 1683 of file SbBox.h.

◆ intersect() [1/2]

SbBool SbXfBox3d::intersect ( const SbBox3d & bb ) const

inline

Returns TRUE if intersection of this XfBox3d and the given Box3d is not empty.

Definition at line 1618 of file SbBox.h.

◆ intersect() [2/2]

SbBool SbXfBox3d::intersect ( const SbVec3d & pt ) const

Returns TRUE if intersection of given point and this box is not empty.

◆ isEmpty()

SbBool SbXfBox3d::isEmpty ( ) const

inline

Returns TRUE if the box is empty, and FALSE otherwise.

Note: Setting the box to all zeros does not make it "empty". Use the makeEmpty() method. (This method only returns true if the maximum X value is less than the minimum X value.)

Definition at line 1678 of file SbBox.h.

◆ makeEmpty()

void SbXfBox3d::makeEmpty ( )

inline

Sets the box to contain nothing.

Definition at line 1673 of file SbBox.h.

◆ project()

SbBox3d SbXfBox3d::project ( ) const

Projects an SbXfBox3d to an SbBox3d.

◆ setBounds() [1/2]

void SbXfBox3d::setBounds	(	const SbVec3d &	_min,
		const SbVec3d &	_max
	)

inline

Sets the bounds of the box.

Definition at line 1636 of file SbBox.h.

◆ setBounds() [2/2]

void SbXfBox3d::setBounds	(	double	xmin,
		double	ymin,
		double	zmin,
		double	xmax,
		double	ymax,
		double	zmax
	)

inline

Sets the bounds of the box.

Definition at line 1629 of file SbBox.h.

◆ setTransform()

void SbXfBox3d::setTransform ( const SbMatrixd & m )

Sets the transformation on the box.

◆ setValue()

SbXfBox3d & SbXfBox3d::setValue ( const SbXfBox3f & xfbox3f )

inline

Sets value of the box from a single precision box.

Definition at line 1756 of file SbBox.h.

◆ transform()

void SbXfBox3d::transform ( const SbMatrixd & m )

Transforms the box by the given matrix.

Friends And Related Symbol Documentation

◆ operator!=

int operator!=	(	const SbXfBox3d &	b1,
		const SbXfBox3d &	b2
	)

friend

Inequality comparison.

Definition at line 1709 of file SbBox.h.

◆ operator==

int operator==	(	const SbXfBox3d &	b1,
		const SbXfBox3d &	b2
	)

friend

Equality comparison.

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

Inventor/SbBox.h

Open Inventor Release 2024.2.0

Public Member Functions

Friends

Detailed Description

SEE ALSO

Constructor & Destructor Documentation

◆ SbXfBox3d() [1/3]

◆ SbXfBox3d() [2/3]

◆ SbXfBox3d() [3/3]

◆ ~SbXfBox3d()

Member Function Documentation

◆ extendBy() [1/3]

◆ extendBy() [2/3]

◆ extendBy() [3/3]

◆ getBounds() [1/2]

◆ getBounds() [2/2]

◆ getCenter()

◆ getInverse()

◆ getOrigin()

◆ getSize()

◆ getSpan()

◆ getTransform()

◆ getVolume()

◆ hasVolume()

◆ intersect() [1/2]

◆ intersect() [2/2]

◆ isEmpty()

◆ makeEmpty()

◆ project()

◆ setBounds() [1/2]

◆ setBounds() [2/2]

◆ setTransform()

◆ setValue()

◆ transform()

Friends And Related Symbol Documentation

◆ operator!=

◆ operator==