osg::Vec2f Class Reference

General purpose float pair. More...

List of all members.

Public Types
typedef float	value_type
	Type of Vec class.
enum	{ num_components = 2 }
	Number of vector components. More...
Public Member Functions
	Vec2f ()
	Vec2f (value_type x, value_type y)
bool	operator== (const Vec2f &v) const
bool	operator!= (const Vec2f &v) const
bool	operator< (const Vec2f &v) const
value_type *	ptr ()
const value_type *	ptr () const
void	set (value_type x, value_type y)
value_type &	operator[] (int i)
value_type	operator[] (int i) const
value_type &	x ()
value_type &	y ()
value_type	x () const
value_type	y () const
bool	valid () const
bool	isNaN () const
value_type	operator * (const Vec2f &rhs) const
	Dot product.
const Vec2f	operator * (value_type rhs) const
	Multiply by scalar.
Vec2f &	operator *= (value_type rhs)
	Unary multiply by scalar.
const Vec2f	operator/ (value_type rhs) const
	Divide by scalar.
Vec2f &	operator/= (value_type rhs)
	Unary divide by scalar.
const Vec2f	operator+ (const Vec2f &rhs) const
	Binary vector add.
Vec2f &	operator+= (const Vec2f &rhs)
	Unary vector add.
const Vec2f	operator- (const Vec2f &rhs) const
	Binary vector subtract.
Vec2f &	operator-= (const Vec2f &rhs)
	Unary vector subtract.
const Vec2f	operator- () const
	Negation operator.
value_type	length () const
	Length of the vector = sqrt( vec .
value_type	length2 (void) const
	Length squared of the vector = vec .
value_type	normalize ()
	Normalize the vector so that it has length unity.
Public Attributes
value_type	_v [2]
	Vec member varaible.

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Detailed Description

General purpose float pair.

Uses include representation of texture coordinates. No support yet added for float * Vec2f - is it necessary? Need to define a non-member non-friend operator* etc. BTW: Vec2f * float is okay

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Member Typedef Documentation

typedef float osg::Vec2f::value_type

Type of Vec class.

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Member Enumeration Documentation

anonymous enum

Number of vector components. Enumeration values: num_components

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Constructor & Destructor Documentation

osg::Vec2f::Vec2f (   )  [inline]

osg::Vec2f::Vec2f (  value_type  x, value_type  y )  [inline]

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Member Function Documentation

bool osg::Vec2f::isNaN (   )  const [inline]

value_type osg::Vec2f::length (   )  const [inline]

Length of the vector = sqrt( vec . vec )

value_type osg::Vec2f::length2 (  void   )  const [inline]

Length squared of the vector = vec . vec

value_type osg::Vec2f::normalize (   )  [inline]

Normalize the vector so that it has length unity. Returns the previous length of the vector.

const Vec2f osg::Vec2f::operator * (  value_type  rhs  )  const [inline]

Multiply by scalar.

value_type osg::Vec2f::operator * (  const Vec2f &  rhs  )  const [inline]

Dot product.

Vec2f& osg::Vec2f::operator *= (  value_type  rhs  )  [inline]

Unary multiply by scalar.

bool osg::Vec2f::operator!= (  const Vec2f &  v  )  const [inline]

const Vec2f osg::Vec2f::operator+ (  const Vec2f &  rhs  )  const [inline]

Binary vector add.

Vec2f& osg::Vec2f::operator+= (  const Vec2f &  rhs  )  [inline]

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

const Vec2f osg::Vec2f::operator- (   )  const [inline]

Negation operator. Returns the negative of the Vec2f.

const Vec2f osg::Vec2f::operator- (  const Vec2f &  rhs  )  const [inline]

Binary vector subtract.

Vec2f& osg::Vec2f::operator-= (  const Vec2f &  rhs  )  [inline]

Unary vector subtract.

const Vec2f osg::Vec2f::operator/ (  value_type  rhs  )  const [inline]

Divide by scalar.

Vec2f& osg::Vec2f::operator/= (  value_type  rhs  )  [inline]

Unary divide by scalar.

bool osg::Vec2f::operator< (  const Vec2f &  v  )  const [inline]

bool osg::Vec2f::operator== (  const Vec2f &  v  )  const [inline]

value_type osg::Vec2f::operator[] (  int  i  )  const [inline]

value_type& osg::Vec2f::operator[] (  int  i  )  [inline]

const value_type* osg::Vec2f::ptr (   )  const [inline]

value_type* osg::Vec2f::ptr (   )  [inline]

void osg::Vec2f::set (  value_type  x, value_type  y )  [inline]

bool osg::Vec2f::valid (   )  const [inline]

value_type osg::Vec2f::x (   )  const [inline]

value_type& osg::Vec2f::x (   )  [inline]

value_type osg::Vec2f::y (   )  const [inline]

value_type& osg::Vec2f::y (   )  [inline]

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Member Data Documentation

value_type osg::Vec2f::_v[2]

Vec member varaible.

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

• Vec2f

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