class osg::Vec3

General purpose float triple for use as vertices, vectors and normals.

Public Fields

float _v[3]

Public Methods

Vec3()

Vec3(float x, float y, float z)

inline bool operator == (const Vec3& v) const

inline bool operator != (const Vec3& v) const

inline bool operator < (const Vec3& v) const

inline float* ptr()

inline const float* ptr() const

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

inline float& operator [] (int i)

inline float operator [] (int i) const

inline float& x()

inline float& y()

inline float& z()

inline float x() const

inline float y() const

inline float z() const

inline bool valid() const

inline bool isNaN() const

inline float operator * (const Vec3& rhs) const

dot product

inline const Vec3 operator ^ (const Vec3& rhs) const

cross product

inline const Vec3 operator * (float rhs) const

multiply by scalar

inline Vec3& operator *= (float rhs)

unary multiply by scalar

inline const Vec3 operator / (float rhs) const

divide by scalar

inline Vec3& operator /= (float rhs)

unary divide by scalar

inline const Vec3 operator + (const Vec3& rhs) const

binary vector add

inline Vec3& operator += (const Vec3& rhs)

unary vector add.

inline const Vec3 operator - (const Vec3& rhs) const

binary vector subtract

inline Vec3& operator -= (const Vec3& rhs)

unary vector subtract

inline const Vec3 operator - () const

negation operator.

inline float length() const

Length of the vector = sqrt( vec .

inline float length2() const

Length squared of the vector = vec .

inline float normalize()

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

Documentation

General purpose float triple for use as vertices, vectors and normals. Provides general maths operations from addition through to cross products. No support yet added for float * Vec3 - is it necessary? Need to define a non-member non-friend operator* etc. Vec3 * float is okay

Vec3()

Vec3(float x, float y, float z)

float _v[3]

inline bool operator == (const Vec3& v) const

inline bool operator != (const Vec3& v) const

inline bool operator < (const Vec3& v) const

inline float* ptr()

inline const float* ptr() const

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

inline float& operator [] (int i)

inline float operator [] (int i) const

inline float& x()

inline float& y()

inline float& z()

inline float x() const

inline float y() const

inline float z() const

inline bool valid() const

inline bool isNaN() const

inline float operator * (const Vec3& rhs) const

dot product

inline const Vec3 operator ^ (const Vec3& rhs) const

cross product

inline const Vec3 operator * (float rhs) const

multiply by scalar

inline Vec3& operator *= (float rhs)

unary multiply by scalar

inline const Vec3 operator / (float rhs) const

divide by scalar

inline Vec3& operator /= (float rhs)

unary divide by scalar

inline const Vec3 operator + (const Vec3& rhs) const

binary vector add

inline Vec3& operator += (const Vec3& rhs)

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

inline const Vec3 operator - (const Vec3& rhs) const

binary vector subtract

inline Vec3& operator -= (const Vec3& rhs)

unary vector subtract

inline const Vec3 operator - () const

negation operator. Returns the negative of the Vec3

inline float length() const

Length of the vector = sqrt( vec . vec )

inline float length2() const

Length squared of the vector = vec . vec

inline 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 std::ostream& operator << (std::ostream& output, const Vec3& vec)

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