osg::Vec4f Class Reference

General purpose float quad. More...

Public Types
enum	{ num_components = 4 }
	Number of vector components. More...
typedef float	value_type
	Data type of vector components. More...

Public Member Functions
	Vec4f ()
	Constructor that sets all components of the vector to zero. More...
	Vec4f (value_type x, value_type y, value_type z, value_type w)
	Vec4f (const Vec3f &v3, value_type w)
bool	operator== (const Vec4f &v) const
bool	operator!= (const Vec4f &v) const
bool	operator< (const Vec4f &v) const
value_type *	ptr ()
const value_type *	ptr () const
void	set (value_type x, value_type y, value_type z, value_type w)
value_type &	operator[] (unsigned int i)
value_type	operator[] (unsigned int i) const
value_type &	x ()
value_type &	y ()
value_type &	z ()
value_type &	w ()
value_type	x () const
value_type	y () const
value_type	z () const
value_type	w () const
value_type &	r ()
value_type &	g ()
value_type &	b ()
value_type &	a ()
value_type	r () const
value_type	g () const
value_type	b () const
value_type	a () const
unsigned int	asABGR () const
unsigned int	asRGBA () const
bool	valid () const
	Returns true if all components have values that are not NaN. More...
bool	isNaN () const
	Returns true if at least one component has value NaN. More...
value_type	operator* (const Vec4f &rhs) const
	Dot product. More...
Vec4f	operator* (value_type rhs) const
	Multiply by scalar. More...
Vec4f &	operator*= (value_type rhs)
	Unary multiply by scalar. More...
Vec4f	operator/ (value_type rhs) const
	Divide by scalar. More...
Vec4f &	operator/= (value_type rhs)
	Unary divide by scalar. More...
Vec4f	operator+ (const Vec4f &rhs) const
	Binary vector add. More...
Vec4f &	operator+= (const Vec4f &rhs)
	Unary vector add. More...
Vec4f	operator- (const Vec4f &rhs) const
	Binary vector subtract. More...
Vec4f &	operator-= (const Vec4f &rhs)
	Unary vector subtract. More...
const Vec4f	operator- () const
	Negation operator. More...
value_type	length () const
	Length of the vector = sqrt( vec . More...
value_type	length2 () const
	Length squared of the vector = vec . More...
value_type	normalize ()
	Normalize the vector so that it has length unity. More...

Public Attributes
value_type	_v [4]
	Vec member variable. More...

Detailed Description

General purpose float quad.

Uses include representation of color coordinates. No support yet added for float * Vec4f - is it necessary? Need to define a non-member non-friend operator* etc. Vec4f * float is okay

Member Typedef Documentation

typedef float osg::Vec4f::value_type

Data type of vector components.

Member Enumeration Documentation

anonymous enum

Number of vector components.

Enumerator
num_components

Constructor & Destructor Documentation

osg::Vec4f::Vec4f ( )

inline

Constructor that sets all components of the vector to zero.

osg::Vec4f::Vec4f ( value_type  x, value_type  y, value_type  z, value_type  w  )

inline

osg::Vec4f::Vec4f ( const Vec3f &  v3, value_type  w  )

inline

Member Function Documentation

value_type& osg::Vec4f::a ( )

inline

value_type osg::Vec4f::a ( ) const

inline

unsigned int osg::Vec4f::asABGR ( ) const

inline

unsigned int osg::Vec4f::asRGBA ( ) const

inline

value_type& osg::Vec4f::b ( )

inline

value_type osg::Vec4f::b ( ) const

inline

value_type& osg::Vec4f::g ( )

inline

value_type osg::Vec4f::g ( ) const

inline

bool osg::Vec4f::isNaN ( ) const

inline

Returns true if at least one component has value NaN.

value_type osg::Vec4f::length ( ) const

inline

Length of the vector = sqrt( vec .

vec )

value_type osg::Vec4f::length2 ( ) const

inline

Length squared of the vector = vec .

vec

value_type osg::Vec4f::normalize ( )

inline

Normalize the vector so that it has length unity.

Returns the previous length of the vector.

bool osg::Vec4f::operator!= ( const Vec4f &  v ) const

inline

value_type osg::Vec4f::operator* ( const Vec4f &  rhs ) const

inline

Dot product.

Vec4f osg::Vec4f::operator* ( value_type  rhs ) const

inline

Multiply by scalar.

Vec4f& osg::Vec4f::operator*= ( value_type  rhs )

inline

Unary multiply by scalar.

Vec4f osg::Vec4f::operator+ ( const Vec4f &  rhs ) const

inline

Binary vector add.

Vec4f& osg::Vec4f::operator+= ( const Vec4f &  rhs )

inline

Unary vector add.

Slightly more efficient because no temporary intermediate object.

Vec4f osg::Vec4f::operator- ( const Vec4f &  rhs ) const

inline

Binary vector subtract.

const Vec4f osg::Vec4f::operator- ( ) const

inline

Negation operator.

Returns the negative of the Vec4f.

Vec4f& osg::Vec4f::operator-= ( const Vec4f &  rhs )

inline

Unary vector subtract.

Vec4f osg::Vec4f::operator/ ( value_type  rhs ) const

inline

Divide by scalar.

Vec4f& osg::Vec4f::operator/= ( value_type  rhs )

inline

Unary divide by scalar.

bool osg::Vec4f::operator< ( const Vec4f &  v ) const

inline

bool osg::Vec4f::operator== ( const Vec4f &  v ) const

inline

value_type& osg::Vec4f::operator[] ( unsigned int  i )

inline

value_type osg::Vec4f::operator[] ( unsigned int  i ) const

inline

value_type* osg::Vec4f::ptr ( )

inline

const value_type* osg::Vec4f::ptr ( ) const

inline

value_type& osg::Vec4f::r ( )

inline

value_type osg::Vec4f::r ( ) const

inline

void osg::Vec4f::set ( value_type  x, value_type  y, value_type  z, value_type  w  )

inline

bool osg::Vec4f::valid ( ) const

inline

Returns true if all components have values that are not NaN.

value_type& osg::Vec4f::w ( )

inline

value_type osg::Vec4f::w ( ) const

inline

value_type& osg::Vec4f::x ( )

inline

value_type osg::Vec4f::x ( ) const

inline

value_type& osg::Vec4f::y ( )

inline

value_type osg::Vec4f::y ( ) const

inline

value_type& osg::Vec4f::z ( )

inline

value_type osg::Vec4f::z ( ) const

inline

Member Data Documentation

value_type osg::Vec4f::_v[4]

Vec member variable.

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

• osg/Vec4f