SbVec2f(3IV)

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.

FILE FORMAT/DEFAULTS

SEE ALSO
SbVec3f, SbVec4f, SbVec2s, SbRotation