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

BoundingBox()

construct to invalid values to represent an unset bounding box

void init()

initialize to invalid values to represent an unset bounding box

bool isValid() const

return true if the bounding box contains valid values, false if the bounding box is effectively unset/empty

float& xMin()

float xMin() const

float& yMin()

float yMin() const

float& zMin()

float zMin() const

float& xMax()

float xMax() const

float& yMax()

float yMax() const

float& zMax()

float zMax() const

Vec3 center() const

Calculate and return the center of the bounding box

float radius() const

Calculate and return the radius of the bounding box

float radius2() const

Calculate and return the radius squared of the bounding box.

Vec3 corner(unsigned int pos) const

return the corner of the bounding box.

void expandBy(const Vec3& v)

If the vertex is outwith the box expand to ecompass vertex.

void expandBy(const BoundingBox& bb)

If incomming box is outwith the box expand to ecompass incomming box.

void expandBy(const BoundingSphere& sh)

If incomming sphere is outwith the box expand to ecompass incomming sphere.

bool contains(const Vec3& v)

return true is vertex v is within the box

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

BoundingBox()

construct to invalid values to represent an unset bounding box

void init()

initialize to invalid values to represent an unset bounding box

bool isValid() const

return true if the bounding box contains valid values, false if the bounding box is effectively unset/empty

float& xMin()

float xMin() const

float& yMin()

float yMin() const

float& zMin()

float zMin() const

float& xMax()

float xMax() const

float& yMax()

float yMax() const

float& zMax()

float zMax() const

Vec3 center() const

Calculate and return the center of the bounding box

float radius() const

Calculate and return the radius of the bounding box

float radius2() const

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

Vec3 corner(unsigned int pos) const

return the corner of the bounding box. Position (pos) is specfied 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.

void expandBy(const Vec3& v)

If the vertex is outwith the box expand to ecompass vertex. If this box is empty then move set this box's min max to vertex.

void expandBy(const BoundingBox& bb)

If incomming box is outwith the box expand to ecompass incomming box. If this box is empty then move set this box to incomming box.

void expandBy(const BoundingSphere& sh)

If incomming sphere is outwith the box expand to ecompass incomming sphere. If this box is empty then move set this box to encompass the sphere.

bool contains(const Vec3& v)

return true is vertex v is within the box

This class has no child classes.

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