class osg::Vec4

General purpose float quad, uses include representation of colour coordinates.

Public Fields

float _v[4]

Public Methods

Vec4()

Vec4(float x, float y, float z, float w)

inline const bool operator == (const Vec4& v) const

inline const bool operator < (const Vec4& v) const

inline float* ptr()

inline const float* ptr() const

inline void set( float x, float y, float z, float w)

inline float& operator [] (const int i)

inline float operator [] (const int i) const

inline float& x()

inline float& y()

inline float& z()

inline float& w()

inline float x() const

inline float y() const

inline float z() const

inline float w() const

inline float operator * (const Vec4& rhs) const

dot product

inline Vec4 operator * (const float& rhs) const

multiply by scalar

inline Vec4& operator *= (const float& rhs)

unary multiply by scalar

inline Vec4 operator / (const float& rhs) const

divide by scalar

inline Vec4& operator /= (const float& rhs)

unary divide by scalar

inline Vec4 operator + (const Vec4& rhs) const

binary vector add

inline Vec4& operator += (const Vec4& rhs)

unary vector add.

inline Vec4 operator - (const Vec4& rhs) const

binary vector subract

inline Vec4& operator -= (const Vec4& rhs)

unary vector subract

inline const Vec4 operator - () const

negation operator.

inline const float length() const

Length of the vector = sqrt( vec .

inline const float length2() const

Length squared of the vector = vec .

inline const float normalize()

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

Documentation

General purpose float quad, uses include representation of colour coordinates. No support yet added for float * Vec4 - is it necessary? Need to define a non-member non-friend operator* etc. Vec4 * float is okay

Vec4()

Vec4(float x, float y, float z, float w)

float _v[4]

inline const bool operator == (const Vec4& v) const

inline const bool operator < (const Vec4& v) const

inline float* ptr()

inline const float* ptr() const

inline void set( float x, float y, float z, float w)

inline float& operator [] (const int i)

inline float operator [] (const int i) const

inline float& x()

inline float& y()

inline float& z()

inline float& w()

inline float x() const

inline float y() const

inline float z() const

inline float w() const

inline float operator * (const Vec4& rhs) const

dot product

inline Vec4 operator * (const float& rhs) const

multiply by scalar

inline Vec4& operator *= (const float& rhs)

unary multiply by scalar

inline Vec4 operator / (const float& rhs) const

divide by scalar

inline Vec4& operator /= (const float& rhs)

unary divide by scalar

inline Vec4 operator + (const Vec4& rhs) const

binary vector add

inline Vec4& operator += (const Vec4& rhs)

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

inline Vec4 operator - (const Vec4& rhs) const

binary vector subract

inline Vec4& operator -= (const Vec4& rhs)

unary vector subract

inline const Vec4 operator - () const

negation operator. Returns the negative of the Vec4

inline const float length() const

Length of the vector = sqrt( vec . vec )

inline const float length2() const

Length squared of the vector = vec . vec

inline const float 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 ostream& operator << (ostream& output, const Vec4& vec)

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