4D vector class. More...

#include <Inventor/SbVec.h>

Inheritance diagram for SbVec4f:

Public Member Functions
	SbVec4f ()
	Default constructor.

	SbVec4f (const float v[4])
	Constructor given vector components.

	SbVec4f (float x, float y, float z, float w)
	Constructor given vector components.

float	dot (const SbVec4f &v) const
	Returns dot (inner) product of vector and another vector.

void	getReal (SbVec3f &v) const
	Returns the real portion of the vector by dividing by the fourth value.

const float *	getValue () const
	Returns vector components.

void	getValue (float &x, float &y, float &z, float &w) const
	Returns vector components.

float	length () const
	Returns geometric length of vector.

float	lengthSquared () const
	Returns square length of vector.

void	negate ()
	Negates each component of vector in place.

float	normalize ()
	Changes vector to be unit length.

SbVec4f &	setValue (const float v[4])
	Sets the vector components.

SbVec4f &	setValue (float x, float y, float z, float w)
	Sets the vector components.

SbVec4f &	setValue (const SbVec4d &vec4d)
	Sets value of vector from a double precision vector.

float &	operator[] (int i)
	Accesses indexed component of vector.

const float &	operator[] (int i) const

SbVec4f &	operator*= (float d)
	Component-wise scalar multiplication operator.

SbVec4f &	operator/= (float d)
	Component-wise scalar division operator.

SbVec4f &	operator+= (const SbVec4f &u)
	Component-wise vector addition operator.

SbVec4f &	operator-= (const SbVec4f &u)
	Component-wise vector subtraction operator.

SbVec4f	operator- () const
	Nondestructive unary negation - returns a new vector.

SbBool	equals (const SbVec4f &v, float tolerance) const
	Equality comparison within given tolerance - the square of the length of the maximum distance between the two vectors.

template<typename T >
	SbVec4f (const T &v)
	Constructor that converts an arbitrary SbVec4 to an SbVec4f.

Friends
SbVec4f	operator* (const SbVec4f &v, float d)
	Component-wise binary scalar multiplication operator.

SbVec4f	operator* (float d, const SbVec4f &v)
	Component-wise binary scalar multiplication operator.

SbVec4f	operator/ (const SbVec4f &v, float d)
	Component-wise binary scalar division operator.

SbVec4f	operator+ (const SbVec4f &v1, const SbVec4f &v2)
	Component-wise binary vector addition operator.

SbVec4f	operator- (const SbVec4f &v1, const SbVec4f &v2)
	Component-wise binary vector subtraction operator.

int	operator== (const SbVec4f &v1, const SbVec4f &v2)
	Equality comparison operator.

int	operator!= (const SbVec4f &v1, const SbVec4f &v2)
	Inequality comparison operator.

std::ostream &	operator<< (std::ostream &os, const SbVec4f &v)
	Writes the vector to the specified output stream.

Detailed Description

4D vector class.

4D vector class used to store homogeneous coordinates. This class is used in Open Inventor for arguments and return values.

Constructor & Destructor Documentation

◆ SbVec4f() [1/4]

SbVec4f::SbVec4f ( )

inline

Default constructor.

The vector is initialized with zeros.

Definition at line 2220 of file SbVec.h.

◆ SbVec4f() [2/4]

SbVec4f::SbVec4f ( const float v[4] )

inlineexplicit

Constructor given vector components.

Definition at line 2225 of file SbVec.h.

◆ SbVec4f() [3/4]

SbVec4f::SbVec4f	(	float	x,
		float	y,
		float	z,
		float	w
	)

inline

Constructor given vector components.

Definition at line 2230 of file SbVec.h.

◆ SbVec4f() [4/4]

template<typename T >

SbVec4f::SbVec4f ( const T & v )

inlineexplicit

Constructor that converts an arbitrary SbVec4 to an SbVec4f.

Definition at line 2371 of file SbVec.h.

Member Function Documentation

◆ dot()

float SbVec4f::dot ( const SbVec4f & v ) const

inline

Returns dot (inner) product of vector and another vector.

Definition at line 2235 of file SbVec.h.

◆ equals()

SbBool SbVec4f::equals	(	const SbVec4f &	v,
		float	tolerance
	)		const

Equality comparison within given tolerance - the square of the length of the maximum distance between the two vectors.

◆ getReal()

void SbVec4f::getReal ( SbVec3f & v ) const

Returns the real portion of the vector by dividing by the fourth value.

◆ getValue() [1/2]

const float * SbVec4f::getValue ( ) const

inline

Returns vector components.

Definition at line 2246 of file SbVec.h.

◆ getValue() [2/2]

void SbVec4f::getValue	(	float &	x,
		float &	y,
		float &	z,
		float &	w
	)		const

Returns vector components.

◆ length()

float SbVec4f::length ( ) const

Returns geometric length of vector.

◆ lengthSquared()

float SbVec4f::lengthSquared ( ) const

inline

Returns square length of vector.

Faster than length().

Definition at line 2262 of file SbVec.h.

◆ negate()

void SbVec4f::negate ( )

Negates each component of vector in place.

◆ normalize()

float SbVec4f::normalize ( )

Changes vector to be unit length.

◆ operator*=()

SbVec4f & SbVec4f::operator*= ( float d )

Component-wise scalar multiplication operator.

◆ operator+=()

SbVec4f & SbVec4f::operator+= ( const SbVec4f & u )

Component-wise vector addition operator.

◆ operator-()

SbVec4f SbVec4f::operator- ( ) const

Nondestructive unary negation - returns a new vector.

◆ operator-=()

SbVec4f & SbVec4f::operator-= ( const SbVec4f & u )

Component-wise vector subtraction operator.

◆ operator/=()

SbVec4f & SbVec4f::operator/= ( float d )

Component-wise scalar division operator.

◆ operator[]() [1/2]

float & SbVec4f::operator[] ( int i )

inline

Accesses indexed component of vector.

Definition at line 2294 of file SbVec.h.

◆ operator[]() [2/2]

const float & SbVec4f::operator[] ( int i ) const

inline

Definition at line 2295 of file SbVec.h.

◆ setValue() [1/3]

SbVec4f & SbVec4f::setValue ( const float v[4] )

Sets the vector components.

◆ setValue() [2/3]

SbVec4f & SbVec4f::setValue ( const SbVec4d & vec4d )

Sets value of vector from a double precision vector.

◆ setValue() [3/3]

SbVec4f & SbVec4f::setValue	(	float	x,
		float	y,
		float	z,
		float	w
	)

Sets the vector components.

Friends And Related Symbol Documentation

◆ operator!=

int operator!=	(	const SbVec4f &	v1,
		const SbVec4f &	v2
	)

friend

Inequality comparison operator.

Definition at line 2353 of file SbVec.h.

◆ operator* [1/2]

SbVec4f operator*	(	const SbVec4f &	v,
		float	d
	)

friend

Component-wise binary scalar multiplication operator.

◆ operator* [2/2]

SbVec4f operator*	(	float	d,
		const SbVec4f &	v
	)

friend

Component-wise binary scalar multiplication operator.

Definition at line 2329 of file SbVec.h.

◆ operator+

SbVec4f operator+	(	const SbVec4f &	v1,
		const SbVec4f &	v2
	)

friend

Component-wise binary vector addition operator.

◆ operator-

SbVec4f operator-	(	const SbVec4f &	v1,
		const SbVec4f &	v2
	)

friend

Component-wise binary vector subtraction operator.

◆ operator/

SbVec4f operator/	(	const SbVec4f &	v,
		float	d
	)

friend

Component-wise binary scalar division operator.

◆ operator<<

std::ostream & operator<<	(	std::ostream &	os,
		const SbVec4f &	v
	)

friend

Writes the vector to the specified output stream.

Definition at line 3677 of file SbVec.h.

◆ operator==

int operator==	(	const SbVec4f &	v1,
		const SbVec4f &	v2
	)

friend

Equality comparison operator.

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

Inventor/SbVec.h

Open Inventor Release 2023.2.3

Public Member Functions

Friends

Detailed Description

SEE ALSO

Constructor & Destructor Documentation

◆ SbVec4f() [1/4]

◆ SbVec4f() [2/4]

◆ SbVec4f() [3/4]

◆ SbVec4f() [4/4]

Member Function Documentation

◆ dot()

◆ equals()

◆ getReal()

◆ getValue() [1/2]

◆ getValue() [2/2]

◆ length()

◆ lengthSquared()

◆ negate()

◆ normalize()

◆ operator*=()

◆ operator+=()

◆ operator-()

◆ operator-=()

◆ operator/=()

◆ operator[]() [1/2]

◆ operator[]() [2/2]

◆ setValue() [1/3]

◆ setValue() [2/3]

◆ setValue() [3/3]

Friends And Related Symbol Documentation

◆ operator!=

◆ operator* [1/2]

◆ operator* [2/2]

◆ operator+

◆ operator-

◆ operator/

◆ operator<<

◆ operator==