class osg::Vec2f

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

Public Fields

value_type _v[2]

Public Methods

Vec2f()

Vec2f(value_type x, value_type y)

inline bool operator == (const Vec2f& v) const

inline bool operator != (const Vec2f& v) const

inline bool operator < (const Vec2f& v) const

inline value_type* ptr()

inline const value_type* ptr() const

inline void set( value_type x, value_type y )

inline value_type& operator [] (int i)

inline value_type operator [] (int i) const

inline value_type& x()

inline value_type& y()

inline value_type x() const

inline value_type y() const

inline bool valid() const

inline bool isNaN() const

inline value_type operator * (const Vec2f& rhs) const

dot product

inline const Vec2f operator * (value_type rhs) const

multiply by scalar

inline Vec2f& operator *= (value_type rhs)

unary multiply by scalar

inline const Vec2f operator / (value_type rhs) const

divide by scalar

inline Vec2f& operator /= (value_type rhs)

unary divide by scalar

inline const Vec2f operator + (const Vec2f& rhs) const

binary vector add

inline Vec2f& operator += (const Vec2f& rhs)

unary vector add.

inline const Vec2f operator - (const Vec2f& rhs) const

binary vector subtract

inline Vec2f& operator -= (const Vec2f& rhs)

unary vector subtract

inline const Vec2f operator - () const

negation operator.

inline value_type length() const

Length of the vector = sqrt( vec .

inline value_type length2( void ) const

Length squared of the vector = vec .

inline value_type normalize()

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

Public

typedef float value_type

Documentation

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

typedef float value_type

value_type _v[2]

Vec2f()

Vec2f(value_type x, value_type y)

inline bool operator == (const Vec2f& v) const

inline bool operator != (const Vec2f& v) const

inline bool operator < (const Vec2f& v) const

inline value_type* ptr()

inline const value_type* ptr() const

inline void set( value_type x, value_type y )

inline value_type& operator [] (int i)

inline value_type operator [] (int i) const

inline value_type& x()

inline value_type& y()

inline value_type x() const

inline value_type y() const

inline bool valid() const

inline bool isNaN() const

inline value_type operator * (const Vec2f& rhs) const

dot product

inline const Vec2f operator * (value_type rhs) const

multiply by scalar

inline Vec2f& operator *= (value_type rhs)

unary multiply by scalar

inline const Vec2f operator / (value_type rhs) const

divide by scalar

inline Vec2f& operator /= (value_type rhs)

unary divide by scalar

inline const Vec2f operator + (const Vec2f& rhs) const

binary vector add

inline Vec2f& operator += (const Vec2f& rhs)

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

inline const Vec2f operator - (const Vec2f& rhs) const

binary vector subtract

inline Vec2f& operator -= (const Vec2f& rhs)

unary vector subtract

inline const Vec2f operator - () const

negation operator. Returns the negative of the Vec2f

inline value_type length() const

Length of the vector = sqrt( vec . vec )

inline value_type length2( void ) const

Length squared of the vector = vec . vec

inline value_type normalize()

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

This class has no child classes.

Friends:

inline std::ostream& operator << (std::ostream& output, const Vec2f& vec)

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