SbBox2d Class Reference

2D box class. More...

#include <Inventor/SbBox.h>

Public Member Functions
	SbBox2d ()
	Constructor for a 2D double box.
	SbBox2d (double xmin, double ymin, double xmax, double ymax)
	Constructor for a 2D double box.
	SbBox2d (const SbVec2d &_min, const SbVec2d &_max)
	Constructor for a 2D double box.
	~SbBox2d ()
	Destructor.
const SbVec2d &	getMin () const
	Returns the minimum point of the box.
const SbVec2d &	getMax () const
	Returns the maximum point of the box.
SbVec2d	getCenter () const
	Returns the center of the box.
void	extendBy (const SbVec2d &pt)
	Extends this box (if necessary) to contain the specified point .
void	extendBy (const SbBox2d &r)
	Extends this box (if necessary) to contain the specified box.
SbBool	intersect (const SbVec2d &pt) const
	Returns TRUE if the specified point intersects this box.
SbBool	intersect (const SbBox2d &bb) const
	Returns TRUE if the specified box intersects this box.
SbBox2d	intersection (const SbBox2d &box) const
	Returns the intersection of the specified box with this box.
void	setBounds (double xmin, double ymin, double xmax, double ymax)
	Sets the corners of the box.
void	setBounds (const SbVec2d &_min, const SbVec2d &_max)
	Sets the corners of the box.
void	getBounds (double &xmin, double &ymin, double &xmax, double &ymax) const
	Gets the corners of the box.
void	getBounds (SbVec2d &_min, SbVec2d &_max) const
	Gets the corners of the box.
SbVec2d	getClosestPoint (const SbVec2d &point) const
	Returns the closest point on the box to the given point.
void	getOrigin (double &originX, double &originY) const
	Gets box origin.
void	getSize (double &sizeX, double &sizeY) const
	Gets box size.
SbVec2d	getSize () const
	Return box size.
double	getAspectRatio () const
	Gets box aspect ratio.
void	makeEmpty ()
	Makes an empty box.
SbBool	isEmpty () const
	Returns TRUE if the box is empty, and FALSE otherwise.
SbBool	hasArea () const
	Returns TRUE if both dimensions of the box have positive size, and FALSE otherwise.

Friends
int	operator== (const SbBox2d &b1, const SbBox2d &b2)
	Equality comparison.
int	operator!= (const SbBox2d &b1, const SbBox2d &b2)
	Inequality comparison.

Detailed Description

2D box class.

2D box which has planes parallel to the major axes and is specified by two points (specified in double precision) on a diagonal. This class is part of the standard Open Inventor datatype classes and is used as input and output to geometry operations.

SEE ALSO

SbBox3f, SbXfBox3f, SbBox2s, SbVec3f, SbVec2d, SbVec2s, SbMatrix

Definition at line 1996 of file SbBox.h.

Constructor & Destructor Documentation

SbBox2d() [1/3]

SbBox2d::SbBox2d ( )

inline

Constructor for a 2D double box.

The box is initially empty.

Definition at line 2002 of file SbBox.h.

SbBox2d() [2/3]

SbBox2d::SbBox2d ( double  xmin, double  ymin, double  xmax, double  ymax  )

inline

Constructor for a 2D double box.

xmin , ymin , xmax , and ymax are the bounds of the box.

Definition at line 2009 of file SbBox.h.

SbBox2d() [3/3]

SbBox2d::SbBox2d ( const SbVec2d &  _min, const SbVec2d &  _max  )

inline

Constructor for a 2D double box.

m_min and m_max are the corners of the diagonal that define the box.

Definition at line 2016 of file SbBox.h.

~SbBox2d()

SbBox2d::~SbBox2d ( )

inline

Destructor.

Definition at line 2022 of file SbBox.h.

Member Function Documentation

extendBy() [1/2]

void SbBox2d::extendBy

(

const SbBox2d &

r

)

Extends this box (if necessary) to contain the specified box.

extendBy() [2/2]

void SbBox2d::extendBy

(

const SbVec2d &

pt

)

Extends this box (if necessary) to contain the specified point .

getAspectRatio()

double SbBox2d::getAspectRatio ( ) const

inline

Gets box aspect ratio.

Definition at line 2136 of file SbBox.h.

getBounds() [1/2]

void SbBox2d::getBounds ( double &  xmin, double &  ymin, double &  xmax, double &  ymax  ) const

inline

Gets the corners of the box.

Definition at line 2083 of file SbBox.h.

getBounds() [2/2]

void SbBox2d::getBounds ( SbVec2d &  _min, SbVec2d &  _max  ) const

inline

Gets the corners of the box.

Definition at line 2091 of file SbBox.h.

getCenter()

SbVec2d SbBox2d::getCenter

(

)

const

Returns the center of the box.

getClosestPoint()

SbVec2d SbBox2d::getClosestPoint

(

const SbVec2d &

point

)

const

Returns the closest point on the box to the given point.

(Returns the point on the center of the Z face if passed the center.)

getMax()

const SbVec2d & SbBox2d::getMax ( ) const

inline

Returns the maximum point of the box.

Definition at line 2034 of file SbBox.h.

getMin()

const SbVec2d & SbBox2d::getMin ( ) const

inline

Returns the minimum point of the box.

Definition at line 2028 of file SbBox.h.

getOrigin()

void SbBox2d::getOrigin ( double &  originX, double &  originY  ) const

inline

Gets box origin.

Definition at line 2103 of file SbBox.h.

getSize() [1/2]

SbVec2d SbBox2d::getSize ( ) const

inline

Return box size.

Definition at line 2125 of file SbBox.h.

getSize() [2/2]

void SbBox2d::getSize ( double &  sizeX, double &  sizeY  ) const

inline

Gets box size.

Definition at line 2109 of file SbBox.h.

hasArea()

SbBool SbBox2d::hasArea ( ) const

inline

Returns TRUE if both dimensions of the box have positive size, and FALSE otherwise.

Definition at line 2153 of file SbBox.h.

intersect() [1/2]

SbBool SbBox2d::intersect

(

const SbBox2d &

bb

)

const

Returns TRUE if the specified box intersects this box.

intersect() [2/2]

SbBool SbBox2d::intersect

(

const SbVec2d &

pt

)

const

Returns TRUE if the specified point intersects this box.

intersection()

SbBox2d SbBox2d::intersection

(

const SbBox2d &

box

)

const

Returns the intersection of the specified box with this box.

Returned box is empty if there is no intersection.

isEmpty()

SbBool SbBox2d::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 2147 of file SbBox.h.

makeEmpty()

void SbBox2d::makeEmpty

(

)

Makes an empty box.

setBounds() [1/2]

void SbBox2d::setBounds ( const SbVec2d &  _min, const SbVec2d &  _max  )

inline

Sets the corners of the box.

Definition at line 2077 of file SbBox.h.

setBounds() [2/2]

void SbBox2d::setBounds ( double  xmin, double  ymin, double  xmax, double  ymax  )

inline

Sets the corners of the box.

Definition at line 2071 of file SbBox.h.

Friends And Related Symbol Documentation

operator!=

int operator!= ( const SbBox2d &  b1, const SbBox2d &  b2  )

friend

Inequality comparison.

Definition at line 2164 of file SbBox.h.

operator==

int operator== ( const SbBox2d &  b1, const SbBox2d &  b2  )

friend

Equality comparison.

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

• Inventor/SbBox.h