osg::Vec2f Class Reference

General purpose float pair. More...

List of all members.

Public Types
enum	{ num_components = 2 }
	Number of vector components. More...
typedef float	value_type
	Type of Vec class.
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.

Enumerator:

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::operator==

(

const Vec2f &

v

)

const [inline]

bool osg::Vec2f::operator!=

(

const Vec2f &

v

)

const [inline]

bool osg::Vec2f::operator<

(

const Vec2f &

v

)

const [inline]

value_type* osg::Vec2f::ptr

(

)

[inline]

const value_type* osg::Vec2f::ptr

(

)

const [inline]

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

value_type& osg::Vec2f::operator[]

(

int

i

)

[inline]

value_type osg::Vec2f::operator[]

(

int

i

)

const [inline]

value_type& osg::Vec2f::x

(

)

[inline]

value_type& osg::Vec2f::y

(

)

[inline]

value_type osg::Vec2f::x

(

)

const [inline]

value_type osg::Vec2f::y

(

)

const [inline]

bool osg::Vec2f::valid

(

)

const [inline]

bool osg::Vec2f::isNaN

(

)

const [inline]

value_type osg::Vec2f::operator *

(

const Vec2f &

rhs

)

const [inline]

Dot product.

const Vec2f osg::Vec2f::operator *

(

value_type

rhs

)

const [inline]

Multiply by scalar.

Vec2f& osg::Vec2f::operator *=

(

value_type

rhs

)

[inline]

Unary multiply by scalar.

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.

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 Vec2f &

rhs

)

const [inline]

Binary vector subtract.

Vec2f& osg::Vec2f::operator-=

(

const Vec2f &

rhs

)

[inline]

Unary vector subtract.

const Vec2f osg::Vec2f::operator-

(

)

const [inline]

Negation operator.

Returns the negative of the Vec2f.

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.

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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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