SbVec2f.3iv man page

SbVec2f — 2D vector class

Inherits from

SbVec2f

Synopsis

#include <Inventor/SbLinear.h>

Methods from class SbVec2f:

SbVec2f()

SbVec2f(const float v[2])

SbVec2f(float x, float y)

float dot(const SbVec2f &v) const

SbBool equals(const SbVec2f v, float tolerance) const

const float * getValue() const

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

float length() const

void negate()

float normalize()

SbVec2f & setValue(const float v[2])

SbVec2f & setValue(float x, float y)

float & operator [](int i)

const float & operator [](int i)

SbVec2f & operator *=(float d)

SbVec2f & operator /=(float d)

SbVec2f & operator +=(const SbVec2f &u)

SbVec2f & operator -=(const SbVec2f &u)

SbVec2f operator -() const

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

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

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

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

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

int operator ==(const SbVec2f &v1, const SbVec2f &v2)

int operator !=(const SbVec2f &v1, const SbVec2f &v2)

Description

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

Methods

SbVec2f()
Default constructor.

SbVec2f(const float v[2])

SbVec2f(float x, float y)
Constructor given vector components.

float dot(const SbVec2f &v) const
Returns dot (inner) product of vector and another vector.

SbBool equals(const SbVec2f v, float tolerance) const
Equality comparison within given tolerance — the square of the length of the maximum distance between the two vectors.

const float * getValue() const

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])

SbVec2f & setValue(float x, float y)
Sets the vector components.

float & operator [](int i)

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

SbVec2f & operator *=(float d)

SbVec2f & operator /=(float d)
Component-wise scalar multiplication and division operators.

SbVec2f & operator +=(const SbVec2f &u)

SbVec2f & operator -=(const SbVec2f &u)
Component-wise vector addition and subtraction operators.

SbVec2f operator -() const
Nondestructive unary negation — returns a new vector.

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

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

SbVec2f operator /(const SbVec2f &v, float d)
Component-wise binary scalar multiplication and division operators.

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

SbVec2f operator -(const SbVec2f &v1, const SbVec2f &v2)
Component-wise binary vector addition and subtraction operators.

int operator ==(const SbVec2f &v1, const SbVec2f &v2)

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

See Also

SbVec3f, SbVec4f, SbVec2s, SbRotation

Info