class SG_EXPORT osg::Plane

A plane class.

Public Methods

inline Plane()

inline Plane(const Plane& pl)

inline Plane(const float a, const float b, const float c, const float d)

inline Plane(const Vec4& vec)

inline Plane(const Vec3& norm, const float d)

inline Plane(const Vec3& v1, const Vec3& v2, const Vec3& v3)

inline Plane& operator = (const Plane& pl)

inline void set(const Plane& pl)

inline void set(const float a, const float b, const float c, const float d)

inline void set(const Vec4& vec)

inline void set(const Vec3& norm, const float d)

inline void set(const Vec3& v1, const Vec3& v2, const Vec3& v3)

inline void makeUnitLength()

inline void calculateUpperLowerBBCorners()

calculate the upper and lower bounding box corners to be used in the intersect(BoundingBox&) method for speeding calculations

inline const bool valid() const

inline Vec4& asVec4()

inline const Vec4& asVec4() const

inline float& operator [] (const int i)

inline float operator [] (const int i) const

inline const float distance(const osg::Vec3& v) const

calculate the distance between a point and the plane

inline const int intersect(const BoundingSphere& bs) const

interesection test between plane and bounding sphere.

inline const int intersect(const BoundingBox& bb) const

interesection test between plane and bounding sphere.

inline void transform(const osg::Matrix& matrix)

Transform the plane by matrix.

inline void transformProvidingInverse(const osg::Matrix& matrix)

Transform the plane by provide a pre inverted matrix.

Protected Fields

Vec4 _fv

unsigned int _upperBBCorner

unsigned int _lowerBBCorner

Documentation

A plane class. It can be used to represent an infinite plane.

inline Plane()

inline Plane(const Plane& pl)

inline Plane(const float a, const float b, const float c, const float d)

inline Plane(const Vec4& vec)

inline Plane(const Vec3& norm, const float d)

inline Plane(const Vec3& v1, const Vec3& v2, const Vec3& v3)

inline Plane& operator = (const Plane& pl)

inline void set(const Plane& pl)

inline void set(const float a, const float b, const float c, const float d)

inline void set(const Vec4& vec)

inline void set(const Vec3& norm, const float d)

inline void set(const Vec3& v1, const Vec3& v2, const Vec3& v3)

inline void makeUnitLength()

inline void calculateUpperLowerBBCorners()

calculate the upper and lower bounding box corners to be used in the intersect(BoundingBox&) method for speeding calculations

inline const bool valid() const

inline Vec4& asVec4()

inline const Vec4& asVec4() const

inline float& operator [] (const int i)

inline float operator [] (const int i) const

inline const float distance(const osg::Vec3& v) const

calculate the distance between a point and the plane

inline const int intersect(const BoundingSphere& bs) const

interesection test between plane and bounding sphere. return 1 if the bs is completely above plane, return 0 if the bs intersects the plane, return -1 if the bs is completely below the plane.

inline const int intersect(const BoundingBox& bb) const

interesection test between plane and bounding sphere. return 1 if the bs is completely above plane, return 0 if the bs intersects the plane, return -1 if the bs is completely below the plane.

inline void transform(const osg::Matrix& matrix)

Transform the plane by matrix. Note, this operations carries out the calculation of the inverse of the matrix since to transforms planes must be multiplied my the inverse transposed. This make this operation expensive. If the inverse has been already calculated elsewhere then use transformProvidingInverse() instead. See http://www.worldserver.com/turk/computergraphics/NormalTransformations.pdf

inline void transformProvidingInverse(const osg::Matrix& matrix)

Transform the plane by provide a pre inverted matrix. see transform for details.

Vec4 _fv

unsigned int _upperBBCorner

unsigned int _lowerBBCorner

This class has no child classes.

Friends:

inline ostream& operator << (ostream& output, const Plane& pl)

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