OpenSceneGraph 2.8.3

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_typeptr ()
const value_typeptr () const
void set (value_type x, value_type y)
value_typeoperator[] (int i)
value_type operator[] (int i) const
value_typex ()
value_typey ()
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.
Vec2foperator*= (value_type rhs)
 Unary multiply by scalar.
const Vec2f operator/ (value_type rhs) const
 Divide by scalar.
Vec2foperator/= (value_type rhs)
 Unary divide by scalar.
const Vec2f operator+ (const Vec2f &rhs) const
 Binary vector add.
Vec2foperator+= (const Vec2f &rhs)
 Unary vector add.
const Vec2f operator- (const Vec2f &rhs) const
 Binary vector subtract.
Vec2foperator-= (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.

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


Member Typedef Documentation

typedef float osg::Vec2f::value_type

Type of Vec class.


Member Enumeration Documentation

anonymous enum

Number of vector components.

Enumerator:
num_components 

Constructor & Destructor Documentation

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

References _v.

Referenced by operator*(), operator+(), operator-(), and operator/().

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

References _v, x(), and y().


Member Function Documentation

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

References _v.

Referenced by valid().

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

Length of the vector = sqrt( vec .

vec )

References _v.

Referenced by normalize().

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

Length squared of the vector = vec .

vec

References _v.

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

Normalize the vector so that it has length unity.

Returns the previous length of the vector.

References _v, and length().

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

References _v.

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

Multiply by scalar.

References _v, and Vec2f().

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

Dot product.

References _v.

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

Unary multiply by scalar.

References _v.

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

Binary vector add.

References _v, and Vec2f().

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

Unary vector add.

Slightly more efficient because no temporary intermediate object.

References _v.

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

Binary vector subtract.

References _v, and Vec2f().

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

Negation operator.

Returns the negative of the Vec2f.

References _v, and Vec2f().

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

Unary vector subtract.

References _v.

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

Divide by scalar.

References _v, and Vec2f().

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

Unary divide by scalar.

References _v.

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

References _v.

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

References _v.

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

References _v.

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

References _v.

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

References _v.

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

References _v.

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

References _v, x(), and y().

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

References isNaN().

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

References _v.

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

References _v.


Member Data Documentation


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

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Generated at Tue Mar 22 2011 13:20:24 for the OpenSceneGraph by doxygen 1.7.3.