SbVec2f Class Reference

2D vector class. More...

#include <Inventor/SbLinear.h>

List of all members.

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.
SbBool	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 int	operator== (const SbVec2f &v1, const SbVec2f &v2)
	Equality comparison operator.
INVENTOR_API int	operator!= (const SbVec2f &v1, const SbVec2f &v2)

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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 237 of file SbLinear.h.

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Constructor & Destructor Documentation

SbVec2f::SbVec2f

(

)

[inline]

Definition at line 241 of file SbLinear.h.

SbVec2f::SbVec2f

(

const float

v[2]

)

[inline]

Definition at line 244 of file SbLinear.h.

SbVec2f::SbVec2f	(	float	x,
		float	y
	)		[inline]

Definition at line 247 of file SbLinear.h.

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Member Function Documentation

float SbVec2f::dot

(

const SbVec2f &

v

)

const

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

const float* SbVec2f::getValue

(

)

const [inline]

Definition at line 253 of file SbLinear.h.

Referenced by SbBox2f::getBounds().

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

float SbVec2f::length

(

)

const

void SbVec2f::negate

(

)

float SbVec2f::normalize

(

)

SbVec2f& SbVec2f::operator*=

(

float

d

)

SbVec2f& SbVec2f::operator+=

(

const SbVec2f &

u

)

SbVec2f SbVec2f::operator-

(

)

const

SbVec2f& SbVec2f::operator-=

(

const SbVec2f &

u

)

SbVec2f& SbVec2f::operator/=

(

float

d

)

[inline]

Definition at line 281 of file SbLinear.h.

const float& SbVec2f::operator[]

(

int

i

)

const [inline]

Definition at line 275 of file SbLinear.h.

float& SbVec2f::operator[]

(

int

i

)

[inline]

Definition at line 274 of file SbLinear.h.

SbVec2f& SbVec2f::setValue

(

const float

v[2]

)

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

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Friends And Related Function Documentation

INVENTOR_API int operator!=	(	const SbVec2f &	v1,
		const SbVec2f &	v2
	)		[friend]

Definition at line 306 of file SbLinear.h.

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

Definition at line 294 of file SbLinear.h.

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

INVENTOR_API SbVec2f operator+	(	const SbVec2f &	v1,
		const SbVec2f &	v2
	)		[friend]

INVENTOR_API SbVec2f operator-	(	const SbVec2f &	v1,
		const SbVec2f &	v2
	)		[friend]

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

Definition at line 296 of file SbLinear.h.

INVENTOR_API int operator==	(	const SbVec2f &	v1,
		const SbVec2f &	v2
	)		[friend]

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Member Data Documentation

float SbVec2f::vec[2] [protected]

Definition at line 314 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