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osg::Vec2 Class Reference

General purpose float pair, uses include representation of texture coordinates. More...

List of all members.

Public Methods
	Vec2 ()
	Vec2 (float x, float y)
const bool	operator== (const Vec2 &v) const
const bool	operator!= (const Vec2 &v) const
const bool	operator< (const Vec2 &v) const
float *	ptr ()
const float *	ptr () const
void	set (float x, float y)
float &	operator[] (int i)
const float	operator[] (int i) const
float &	x ()
float &	y ()
const float	x () const
const float	y () const
const bool	valid () const
const bool	isNaN () const
const float	operator * (const Vec2 &rhs) const
	dot product
const Vec2	operator * (const float &rhs) const
	multiply by scalar
Vec2 &	operator *= (const float &rhs)
	unary multiply by scalar
const Vec2	operator/ (const float &rhs) const
	divide by scalar
Vec2 &	operator/= (const float &rhs)
	unary divide by scalar
const Vec2	operator+ (const Vec2 &rhs) const
	binary vector add
Vec2 &	operator+= (const Vec2 &rhs)
	unary vector add.
const Vec2	operator- (const Vec2 &rhs) const
	binary vector subtract
Vec2 &	operator-= (const Vec2 &rhs)
	unary vector subtract
const Vec2	operator- () const
	negation operator. Returns the negative of the Vec2
const float	length () const
	Length of the vector = sqrt( vec . vec ).
const float	length2 (void) const
	Length squared of the vector = vec . vec.
const float	normalize ()
	normalize the vector so that it has length unity returns the previous length of the vector
Public Attributes
float	_v [2]
Friends
std::ostream &	operator<< (std::ostream &output, const Vec2 &vec)

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Detailed Description

General purpose float pair, uses include representation of texture coordinates.

No support yet added for float * Vec2 - is it necessary? Need to define a non-member non-friend operator * etc. BTW: Vec2 * float is okay

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Constructor & Destructor Documentation

osg::Vec2::Vec2 (    )  [inline]

osg::Vec2::Vec2 (  float    x, float    y )  [inline]

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Member Function Documentation

const bool osg::Vec2::isNaN (    )  const [inline]

const float osg::Vec2::length (    )  const [inline]

Length of the vector = sqrt( vec . vec ).

const float osg::Vec2::length2 (  void    )  const [inline]

Length squared of the vector = vec . vec.

const float osg::Vec2::normalize (    )  [inline]

normalize the vector so that it has length unity returns the previous length of the vector

const Vec2 osg::Vec2::operator * (  const float &    rhs )  const [inline]

multiply by scalar

const float osg::Vec2::operator * (  const Vec2 &    rhs )  const [inline]

dot product

Vec2& osg::Vec2::operator *= (  const float &    rhs )  [inline]

unary multiply by scalar

const bool osg::Vec2::operator!= (  const Vec2 &    v )  const [inline]

const Vec2 osg::Vec2::operator+ (  const Vec2 &    rhs )  const [inline]

binary vector add

Vec2& osg::Vec2::operator+= (  const Vec2 &    rhs )  [inline]

unary vector add. Slightly more efficient because no temporary intermediate object.

const Vec2 osg::Vec2::operator- (    )  const [inline]

negation operator. Returns the negative of the Vec2

const Vec2 osg::Vec2::operator- (  const Vec2 &    rhs )  const [inline]

binary vector subtract

Vec2& osg::Vec2::operator-= (  const Vec2 &    rhs )  [inline]

unary vector subtract

const Vec2 osg::Vec2::operator/ (  const float &    rhs )  const [inline]

divide by scalar

Vec2& osg::Vec2::operator/= (  const float &    rhs )  [inline]

unary divide by scalar

const bool osg::Vec2::operator< (  const Vec2 &    v )  const [inline]

const bool osg::Vec2::operator== (  const Vec2 &    v )  const [inline]

const float osg::Vec2::operator[] (  int    i )  const [inline]

float& osg::Vec2::operator[] (  int    i )  [inline]

const float* osg::Vec2::ptr (    )  const [inline]

float* osg::Vec2::ptr (    )  [inline]

void osg::Vec2::set (  float    x, float    y )  [inline]

const bool osg::Vec2::valid (    )  const [inline]

const float osg::Vec2::x (    )  const [inline]

float& osg::Vec2::x (    )  [inline]

const float osg::Vec2::y (    )  const [inline]

float& osg::Vec2::y (    )  [inline]

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Friends And Related Function Documentation

std::ostream& operator<< (  std::ostream &    output, const Vec2 &    vec )  [friend]

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Member Data Documentation

float osg::Vec2::_v[2]

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The documentation for this class was generated from the following file:

• Vec2

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