class SG_EXPORT osg::BoundingBox

General purpose axis-aligned bounding box class for enclosing objects/vertices.

Public Fields

Vec3 _min

The corner with the smallest values for each coordinate of the bounding box

Vec3 _max

The corner with the largest values for each coordinate of the bounding box

Public Methods

inline BoundingBox()

construct to invalid values to represent an unset bounding box

inline BoundingBox(float xmin, float ymin, float zmin, float xmax, float ymax, float zmax)

construct to with specified min and max values

inline BoundingBox(const Vec3& min, const Vec3& max)

construct to with specified min and max values

inline void init()

initialize to invalid values to represent an unset bounding box

inline bool valid() const

inline void set(float xmin, float ymin, float zmin, float xmax, float ymax, float zmax)

inline void set(const Vec3& min, const Vec3& max)

construct to with specified min and max values

inline float& xMin()

inline float xMin() const

inline float& yMin()

inline float yMin() const

inline float& zMin()

inline float zMin() const

inline float& xMax()

inline float xMax() const

inline float& yMax()

inline float yMax() const

inline float& zMax()

inline float zMax() const

inline const Vec3 center() const

Calculate and return the center of the bounding box

inline float radius() const

Calculate and return the radius of the bounding box

inline float radius2() const

Calculate and return the radius squared of the bounding box.

inline const Vec3 corner(unsigned int pos) const

return the corner of the bounding box.

inline void expandBy(const Vec3& v)

If the vertex is out-with the box expand to encompass vertex.

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

If the vertex is out-with the box expand to encompass vertex.

void expandBy(const BoundingBox& bb)

If incoming box is out-with the box expand to encompass incoming box.

void expandBy(const BoundingSphere& sh)

If incoming sphere is out-with the box expand to encompass incoming sphere.

BoundingBox intersect(const BoundingBox& bb) const

Compute the intesection of this bounding box with the specified bounding box

bool intersects(const BoundingBox& bb) const

return true if this bounding box with the specified bounding box

inline bool contains(const Vec3& v) const

return true is vertex v is within the box

Documentation

General purpose axis-aligned bounding box class for enclosing objects/vertices. Used to bounding the leaf objects in the scene, i.e. osg::Drawable's to assist in view frustum culling etc.

Vec3 _min

The corner with the smallest values for each coordinate of the bounding box

Vec3 _max

The corner with the largest values for each coordinate of the bounding box

inline BoundingBox()

construct to invalid values to represent an unset bounding box

inline BoundingBox(float xmin, float ymin, float zmin, float xmax, float ymax, float zmax)

construct to with specified min and max values

inline BoundingBox(const Vec3& min, const Vec3& max)

construct to with specified min and max values

inline void init()

initialize to invalid values to represent an unset bounding box

inline bool valid() const

inline void set(float xmin, float ymin, float zmin, float xmax, float ymax, float zmax)

inline void set(const Vec3& min, const Vec3& max)

construct to with specified min and max values

inline float& xMin()

inline float xMin() const

inline float& yMin()

inline float yMin() const

inline float& zMin()

inline float zMin() const

inline float& xMax()

inline float xMax() const

inline float& yMax()

inline float yMax() const

inline float& zMax()

inline float zMax() const

inline const Vec3 center() const

Calculate and return the center of the bounding box

inline float radius() const

Calculate and return the radius of the bounding box

inline float radius2() const

Calculate and return the radius squared of the bounding box. Note, radius2() is faster to calculate than radius().

inline const Vec3 corner(unsigned int pos) const

return the corner of the bounding box. Position (pos) is specified by a number between 0 and 7, the first bit toggles between x min and x max, second bit toggles between y min and y max, third bit toggles between z min and z max.

inline void expandBy(const Vec3& v)

If the vertex is out-with the box expand to encompass vertex. If this box is empty then move set this box's min max to vertex.

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

If the vertex is out-with the box expand to encompass vertex. If this box is empty then move set this box's min max to vertex.

void expandBy(const BoundingBox& bb)

If incoming box is out-with the box expand to encompass incoming box. If this box is empty then move set this box to incoming box.

void expandBy(const BoundingSphere& sh)

If incoming sphere is out-with the box expand to encompass incoming sphere. If this box is empty then move set this box to encompass the sphere.

BoundingBox intersect(const BoundingBox& bb) const

Compute the intesection of this bounding box with the specified bounding box

bool intersects(const BoundingBox& bb) const

return true if this bounding box with the specified bounding box

inline bool contains(const Vec3& v) const

return true is vertex v is within the box

This class has no child classes.

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