SbVec2f Class Reference

2D vector class. More...

#include <Inventor/SbLinear.h>

Public Member Functions
	SbVec2f ()
	Default constructor.
	SbVec2f (const float v[2])
	Constructor given vector components.
	SbVec2f (float x, float y)
	Constructor given vector components.
float	dot (const SbVec2f &v) const
	Returns dot (inner) product of vector and another vector.
const float *	getValue () const
	Returns vector components.
void	getValue (float &x, float &y) 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.
SbVec2f &	setValue (const float v[2])
	Sets the vector components.
SbVec2f &	setValue (float x, float y)
	Sets the vector components.
float &	operator[] (int i)
	Accesses indexed component of vector.
const float &	operator[] (int i) const
SbVec2f &	operator*= (float d)
	Component-wise scalar multiplication and division operators.
SbVec2f &	operator/= (float d)
	Component-wise scalar multiplication and division operators.
SbVec2f &	operator+= (const SbVec2f &u)
	Component-wise vector addition and subtraction operators.
SbVec2f &	operator-= (const SbVec2f &u)
	Component-wise vector addition and subtraction operators.
SbVec2f	operator- () const
	Nondestructive unary negation - returns a new vector.
bool	equals (const SbVec2f 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 [2]
	Storage for vector components.

Friends
INVENTOR_API SbVec2f	operator* (const SbVec2f &v, float d)
	Component-wise binary scalar multiplication and division operators.
INVENTOR_API SbVec2f	operator* (float d, const SbVec2f &v)
INVENTOR_API SbVec2f	operator/ (const SbVec2f &v, float d)
INVENTOR_API SbVec2f	operator+ (const SbVec2f &v1, const SbVec2f &v2)
	Component-wise binary vector addition and subtraction operators.
INVENTOR_API SbVec2f	operator- (const SbVec2f &v1, const SbVec2f &v2)
INVENTOR_API bool	operator== (const SbVec2f &v1, const SbVec2f &v2)
	Equality comparison operator.
INVENTOR_API bool	operator!= (const SbVec2f &v1, const SbVec2f &v2)

Detailed Description

2D vector class used to store 2D vectors and points. This class is used throughout Inventor for arguments and return values. {}

See Also

SbVec3f, SbVec4f, SbVec2s, SbRotation

Definition at line 246 of file SbLinear.h.

Constructor & Destructor Documentation

SbVec2f() [1/3]

SbVec2f::SbVec2f ( )

inline

Definition at line 250 of file SbLinear.h.

SbVec2f() [2/3]

SbVec2f::SbVec2f ( const float  v[2] )

inline

Definition at line 253 of file SbLinear.h.

SbVec2f() [3/3]

SbVec2f::SbVec2f ( float  x, float  y  )

inline

Definition at line 256 of file SbLinear.h.

Member Function Documentation

dot()

float SbVec2f::dot

(

const SbVec2f &

v

)

const

equals()

bool SbVec2f::equals	(	const SbVec2f	v,
		float	tolerance
	)		const

getValue() [1/2]

const float * SbVec2f::getValue ( ) const

inline

Definition at line 262 of file SbLinear.h.

getValue() [2/2]

void SbVec2f::getValue	(	float &	x,
		float &	y
	)		const

length()

float SbVec2f::length

(

)

const

negate()

void SbVec2f::negate

(

)

normalize()

float SbVec2f::normalize

(

)

operator*=()

SbVec2f & SbVec2f::operator*=

(

float

d

)

operator+=()

SbVec2f & SbVec2f::operator+=

(

const SbVec2f &

u

)

operator-()

SbVec2f SbVec2f::operator-

(

)

const

operator-=()

SbVec2f & SbVec2f::operator-=

(

const SbVec2f &

u

)

operator/=()

SbVec2f & SbVec2f::operator/= ( float  d )

inline

Definition at line 290 of file SbLinear.h.

operator[]() [1/2]

float & SbVec2f::operator[] ( int  i )

inline

Definition at line 283 of file SbLinear.h.

operator[]() [2/2]

const float & SbVec2f::operator[] ( int  i ) const

inline

Definition at line 284 of file SbLinear.h.

setValue() [1/2]

SbVec2f & SbVec2f::setValue

(

const float

v[2]

)

setValue() [2/2]

SbVec2f & SbVec2f::setValue	(	float	x,
		float	y
	)

Friends And Related Symbol Documentation

operator!=

INVENTOR_API bool operator!= ( const SbVec2f &  v1, const SbVec2f &  v2  )

friend

Definition at line 334 of file SbLinear.h.

operator* [1/2]

INVENTOR_API SbVec2f operator* ( const SbVec2f &  v, float  d  )

friend

operator* [2/2]

INVENTOR_API SbVec2f operator* ( float  d, const SbVec2f &  v  )

friend

Definition at line 324 of file SbLinear.h.

operator+

INVENTOR_API SbVec2f operator+ ( const SbVec2f &  v1, const SbVec2f &  v2  )

friend

operator-

INVENTOR_API SbVec2f operator- ( const SbVec2f &  v1, const SbVec2f &  v2  )

friend

operator/

INVENTOR_API SbVec2f operator/ ( const SbVec2f &  v, float  d  )

friend

Definition at line 326 of file SbLinear.h.

operator==

INVENTOR_API bool operator== ( const SbVec2f &  v1, const SbVec2f &  v2  )

friend

Member Data Documentation

vec

float SbVec2f::vec[2]

protected

Definition at line 320 of file SbLinear.h.

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

• C:/jh/mevislab/4.0.2_1/build/MeVis/ThirdParty/Sources/Inventor/include/Inventor/SbLinear.h