NAME
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