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Man Pages


Manual Reference Pages  -  SBVEC2F (3)

NAME

SbVec2f — 2D vector class

CONTENTS

Inherits From
Synopsis
Description
Methods
File Format/defaults
See Also

INHERITS FROM

SbVec2f

SYNOPSIS

#include <Inventor/SbLinear.h>

Methods from class SbVec2f:

       
                    
                     SbVec2f()    
   
                    
                     SbVec2f(const float v[2])    
   
                    
                     SbVec2f(float x, float y)    
float    
                    
float                dot(const SbVec2f &v) const    
SbBool    
                    
SbBool               equals(const SbVec2f v, float tolerance) const    
const float *    
                    
const float *        getValue() const    
void    
                    
void                 getValue(float &x, float &y) const    
float    
                    
float                length() const    
void    
                    
void                 negate()    
float    
                    
float                normalize()    
SbVec2f &    
                    
SbVec2f &            setValue(const float v[2])    
SbVec2f &    
                    
SbVec2f &            setValue(float x, float y)    
float &    
                    
float &              operator [](int i)    
const float &    
                    
const float &        operator [](int i)    
SbVec2f &    
                    
SbVec2f &            operator *=(float d)    
SbVec2f &    
                    
SbVec2f &            operator /=(float d)    
SbVec2f &    
                    
SbVec2f &            operator +=(const SbVec2f &u)    
SbVec2f &    
                    
SbVec2f &            operator -=(const SbVec2f &u)    
SbVec2f    
                    
SbVec2f              operator -() const    
SbVec2f    
                    
SbVec2f              operator *(const SbVec2f &v, float d)    
SbVec2f    
                    
SbVec2f              operator *(float d, const SbVec2f &v)    
SbVec2f    
                    
SbVec2f              operator /(const SbVec2f &v, float d)    
SbVec2f    
                    
SbVec2f              operator +(const SbVec2f &v1, const SbVec2f &v2)    
SbVec2f    
                    
SbVec2f              operator -(const SbVec2f &v1, const SbVec2f &v2)    
int    
                    
int                  operator ==(const SbVec2f &v1, const SbVec2f &v2)    
int    
                    
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    
                    
float                dot(const SbVec2f &v) const
Returns dot (inner) product of vector and another vector.

    SbBool    
                    
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 *    
                    
const float *        getValue() const    
void    
                    
void                 getValue(float &x, float &y) const
Returns vector components.

    float    
                    
float                length() const
Returns geometric length of vector.

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

    float    
                    
float                normalize()
Changes vector to be unit length.

    SbVec2f &    
                    
SbVec2f &            setValue(const float v[2])    
SbVec2f &    
                    
SbVec2f &            setValue(float x, float y)
Sets the vector components.

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

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

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

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

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

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

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

FILE FORMAT/DEFAULTS

SEE ALSO

SbVec3f, SbVec4f, SbVec2s, SbRotation

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