SbVec4f Class Reference

4D vector class. More...

#include <Inventor/SbLinear.h>

List of all members.

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.
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.
float &	operator[] (int i)
	Accesses indexed component of vector.
const float &	operator[] (int i) const
SbVec4f &	operator*= (float d)
	Component-wise scalar multiplication and division operators.
SbVec4f &	operator/= (float d)
	Component-wise scalar multiplication and division operators.
SbVec4f &	operator+= (const SbVec4f &u)
	Component-wise vector addition and subtraction operators.
SbVec4f &	operator-= (const SbVec4f &u)
	Component-wise vector addition and subtraction operators.
SbVec4f	operator- () const
	Nondestructive unary negation - returns a new vector.
SbBool	equals (const SbVec4f v, float tolerance) const
	Equality comparison within given tolerance em the square of the length of the maximum distance between the two vectors.
Protected Attributes
float	vec [4]
	Storage for vector components.
Friends
INVENTOR_API SbVec4f	operator* (const SbVec4f &v, float d)
	Component-wise binary scalar multiplication and division operators.
INVENTOR_API SbVec4f	operator* (float d, const SbVec4f &v)
INVENTOR_API SbVec4f	operator/ (const SbVec4f &v, float d)
INVENTOR_API SbVec4f	operator+ (const SbVec4f &v1, const SbVec4f &v2)
	Component-wise binary vector addition and subtraction operators.
INVENTOR_API SbVec4f	operator- (const SbVec4f &v1, const SbVec4f &v2)
INVENTOR_API int	operator== (const SbVec4f &v1, const SbVec4f &v2)
	Equality comparison operator.
INVENTOR_API int	operator!= (const SbVec4f &v1, const SbVec4f &v2)

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Detailed Description

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

See Also

SbVec2f, SbVec3f, SbVec2s, SbRotation

Definition at line 515 of file SbLinear.h.

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Constructor & Destructor Documentation

SbVec4f::SbVec4f

(

)

[inline]

Definition at line 519 of file SbLinear.h.

SbVec4f::SbVec4f

(

const float

v[4]

)

[inline]

Definition at line 522 of file SbLinear.h.

SbVec4f::SbVec4f	(	float	x,
		float	y,
		float	z,
		float	w
	)		[inline]

Definition at line 525 of file SbLinear.h.

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Member Function Documentation

float SbVec4f::dot

(

const SbVec4f &

v

)

const

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

void SbVec4f::getReal

(

SbVec3f &

v

)

const

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

const float* SbVec4f::getValue

(

)

const [inline]

Definition at line 534 of file SbLinear.h.

float SbVec4f::length

(

)

const

void SbVec4f::negate

(

)

float SbVec4f::normalize

(

)

SbVec4f& SbVec4f::operator*=

(

float

d

)

SbVec4f& SbVec4f::operator+=

(

const SbVec4f &

u

)

SbVec4f SbVec4f::operator-

(

)

const

SbVec4f& SbVec4f::operator-=

(

const SbVec4f &

u

)

SbVec4f& SbVec4f::operator/=

(

float

d

)

[inline]

Definition at line 562 of file SbLinear.h.

float& SbVec4f::operator[]

(

int

i

)

[inline]

Definition at line 555 of file SbLinear.h.

const float& SbVec4f::operator[]

(

int

i

)

const [inline]

Definition at line 556 of file SbLinear.h.

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

SbVec4f& SbVec4f::setValue

(

const float

v[4]

)

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Friends And Related Function Documentation

INVENTOR_API int operator!=	(	const SbVec4f &	v1,
		const SbVec4f &	v2
	)		[friend]

Definition at line 587 of file SbLinear.h.

INVENTOR_API SbVec4f operator*	(	float	d,
		const SbVec4f &	v
	)		[friend]

Definition at line 575 of file SbLinear.h.

INVENTOR_API SbVec4f operator*	(	const SbVec4f &	v,
		float	d
	)		[friend]

INVENTOR_API SbVec4f operator+	(	const SbVec4f &	v1,
		const SbVec4f &	v2
	)		[friend]

INVENTOR_API SbVec4f operator-	(	const SbVec4f &	v1,
		const SbVec4f &	v2
	)		[friend]

INVENTOR_API SbVec4f operator/	(	const SbVec4f &	v,
		float	d
	)		[friend]

Definition at line 577 of file SbLinear.h.

INVENTOR_API int operator==	(	const SbVec4f &	v1,
		const SbVec4f &	v2
	)		[friend]

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Member Data Documentation

float SbVec4f::vec[4] [protected]

Definition at line 595 of file SbLinear.h.

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

• MeVis/ThirdParty/Sources/Inventor/inventor/lib/database/include/Inventor/SbLinear.h