Panda3D
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This defines a bounding sphere, consisting of a center and a radius. More...
#include "boundingSphere.h"
Public Member Functions | |
BoundingSphere () | |
Constructs an empty sphere. | |
BoundingSphere (const LPoint3f ¢er, float radius) | |
Constructs a specific sphere. | |
virtual const BoundingSphere * | as_bounding_sphere () const |
Virtual downcast method. | |
virtual TypeHandle | force_init_type () |
virtual LPoint3f | get_approx_center () const |
LPoint3f | get_center () const |
virtual LPoint3f | get_max () const |
virtual LPoint3f | get_min () const |
float | get_radius () const |
virtual TypeHandle | get_type () const |
virtual float | get_volume () const |
virtual BoundingVolume * | make_copy () const |
virtual void | output (ostream &out) const |
virtual void | xform (const LMatrix4f &mat) |
Static Public Member Functions | |
static TypeHandle | get_class_type () |
static void | init_type () |
This function is declared non-inline to work around a compiler bug in g++ 2.96. | |
Protected Member Functions | |
virtual bool | around_boxes (const BoundingVolume **first, const BoundingVolume **last) |
Double-dispatch support: called by around_other() when the type of the first element in the list is known to be a nonempty box. | |
bool | around_finite (const BoundingVolume **first, const BoundingVolume **last) |
virtual bool | around_hexahedrons (const BoundingVolume **first, const BoundingVolume **last) |
Double-dispatch support: called by around_other() when the type of the first element in the list is known to be a nonempty hexahedron. | |
virtual bool | around_other (BoundingVolume *other, const BoundingVolume **first, const BoundingVolume **last) const |
virtual bool | around_points (const LPoint3f *first, const LPoint3f *last) |
Puts the volume around the indicated list of points, identified by an STL-style begin/end list. | |
virtual bool | around_spheres (const BoundingVolume **first, const BoundingVolume **last) |
Double-dispatch support: called by around_other() when the type of the first element in the list is known to be a nonempty sphere. | |
virtual int | contains_box (const BoundingBox *box) const |
Double-dispatch support: called by contains_other() when the type we're testing for intersection is known to be a box. | |
virtual int | contains_hexahedron (const BoundingHexahedron *hexahedron) const |
Double-dispatch support: called by contains_other() when the type we're testing for intersection is known to be a hexahedron. | |
virtual int | contains_line (const BoundingLine *line) const |
Double-dispatch support: called by contains_other() when the type we're testing for intersection is known to be a line. | |
virtual int | contains_lineseg (const LPoint3f &a, const LPoint3f &b) const |
Tests whether the volume contains the indicated line segment. | |
virtual int | contains_other (const BoundingVolume *other) const |
virtual int | contains_plane (const BoundingPlane *plane) const |
Double-dispatch support: called by contains_other() when the type we're testing for intersection is known to be a plane. | |
virtual int | contains_point (const LPoint3f &point) const |
Tests whether the volume contains the indicated point. | |
virtual int | contains_sphere (const BoundingSphere *sphere) const |
Double-dispatch support: called by contains_other() when the type we're testing for intersection is known to be a sphere. | |
virtual bool | extend_by_box (const BoundingBox *box) |
Double-dispatch support: called by extend_other() when the type we're extending by is known to be a box. | |
bool | extend_by_finite (const FiniteBoundingVolume *volume) |
virtual bool | extend_by_hexahedron (const BoundingHexahedron *hexahedron) |
Double-dispatch support: called by extend_other() when the type we're extending by is known to be a hexahedron. | |
virtual bool | extend_by_point (const LPoint3f &point) |
Extends the volume to include the indicated point. | |
virtual bool | extend_by_sphere (const BoundingSphere *sphere) |
Double-dispatch support: called by extend_other() when the type we're extending by is known to be a sphere. | |
virtual bool | extend_other (BoundingVolume *other) const |
Friends | |
class | BoundingHexahedron |
This defines a bounding sphere, consisting of a center and a radius.
It is always a sphere, and never an ellipsoid or other quadric.
Definition at line 28 of file boundingSphere.h.
BoundingSphere::BoundingSphere | ( | ) | [inline] |
Constructs an empty sphere.
Definition at line 22 of file boundingSphere.I.
BoundingSphere::BoundingSphere | ( | const LPoint3f & | center, |
float | radius | ||
) | [inline] |
Constructs a specific sphere.
Definition at line 31 of file boundingSphere.I.
References LVecBase3f::is_nan().
bool BoundingSphere::around_boxes | ( | const BoundingVolume ** | first, |
const BoundingVolume ** | last | ||
) | [protected, virtual] |
Double-dispatch support: called by around_other() when the type of the first element in the list is known to be a nonempty box.
Reimplemented from BoundingVolume.
Definition at line 416 of file boundingSphere.cxx.
bool BoundingSphere::around_hexahedrons | ( | const BoundingVolume ** | first, |
const BoundingVolume ** | last | ||
) | [protected, virtual] |
Double-dispatch support: called by around_other() when the type of the first element in the list is known to be a nonempty hexahedron.
Reimplemented from BoundingVolume.
Definition at line 427 of file boundingSphere.cxx.
bool BoundingSphere::around_points | ( | const LPoint3f * | first, |
const LPoint3f * | last | ||
) | [protected, virtual] |
Puts the volume around the indicated list of points, identified by an STL-style begin/end list.
Reimplemented from GeometricBoundingVolume.
Definition at line 312 of file boundingSphere.cxx.
References LVecBase3f::is_nan().
bool BoundingSphere::around_spheres | ( | const BoundingVolume ** | first, |
const BoundingVolume ** | last | ||
) | [protected, virtual] |
Double-dispatch support: called by around_other() when the type of the first element in the list is known to be a nonempty sphere.
Reimplemented from BoundingVolume.
Definition at line 405 of file boundingSphere.cxx.
const BoundingSphere * BoundingSphere::as_bounding_sphere | ( | ) | const [virtual] |
Virtual downcast method.
Returns this object as a pointer of the indicated type, if it is in fact that type. Returns NULL if it is not that type.
Reimplemented from BoundingVolume.
Definition at line 164 of file boundingSphere.cxx.
int BoundingSphere::contains_box | ( | const BoundingBox * | box | ) | const [protected, virtual] |
Double-dispatch support: called by contains_other() when the type we're testing for intersection is known to be a box.
Reimplemented from BoundingVolume.
Definition at line 650 of file boundingSphere.cxx.
References BoundingBox::contains_sphere().
int BoundingSphere::contains_hexahedron | ( | const BoundingHexahedron * | hexahedron | ) | const [protected, virtual] |
Double-dispatch support: called by contains_other() when the type we're testing for intersection is known to be a hexahedron.
Reimplemented from BoundingVolume.
Definition at line 662 of file boundingSphere.cxx.
References BoundingHexahedron::contains_sphere().
int BoundingSphere::contains_line | ( | const BoundingLine * | line | ) | const [protected, virtual] |
Double-dispatch support: called by contains_other() when the type we're testing for intersection is known to be a line.
Reimplemented from BoundingVolume.
Definition at line 674 of file boundingSphere.cxx.
References BoundingLine::contains_sphere().
int BoundingSphere::contains_lineseg | ( | const LPoint3f & | a, |
const LPoint3f & | b | ||
) | const [protected, virtual] |
Tests whether the volume contains the indicated line segment.
Reimplemented from GeometricBoundingVolume.
Definition at line 555 of file boundingSphere.cxx.
References contains_point(), BoundingVolume::is_empty(), BoundingVolume::is_infinite(), and LVecBase3f::is_nan().
int BoundingSphere::contains_plane | ( | const BoundingPlane * | plane | ) | const [protected, virtual] |
Double-dispatch support: called by contains_other() when the type we're testing for intersection is known to be a plane.
Reimplemented from BoundingVolume.
Definition at line 686 of file boundingSphere.cxx.
References BoundingPlane::contains_sphere().
int BoundingSphere::contains_point | ( | const LPoint3f & | point | ) | const [protected, virtual] |
Tests whether the volume contains the indicated point.
Reimplemented from GeometricBoundingVolume.
Definition at line 532 of file boundingSphere.cxx.
References BoundingVolume::is_empty(), BoundingVolume::is_infinite(), and LVecBase3f::is_nan().
Referenced by contains_lineseg().
int BoundingSphere::contains_sphere | ( | const BoundingSphere * | sphere | ) | const [protected, virtual] |
Double-dispatch support: called by contains_other() when the type we're testing for intersection is known to be a sphere.
Reimplemented from BoundingVolume.
Definition at line 620 of file boundingSphere.cxx.
References BoundingVolume::is_empty(), and BoundingVolume::is_infinite().
bool BoundingSphere::extend_by_box | ( | const BoundingBox * | box | ) | [protected, virtual] |
Double-dispatch support: called by extend_other() when the type we're extending by is known to be a box.
Reimplemented from BoundingVolume.
Definition at line 252 of file boundingSphere.cxx.
References BoundingBox::get_maxq(), BoundingBox::get_minq(), BoundingBox::get_point(), and BoundingVolume::is_empty().
Referenced by extend_by_hexahedron().
bool BoundingSphere::extend_by_hexahedron | ( | const BoundingHexahedron * | hexahedron | ) | [protected, virtual] |
Double-dispatch support: called by extend_other() when the type we're extending by is known to be a hexahedron.
Reimplemented from BoundingVolume.
Definition at line 284 of file boundingSphere.cxx.
References extend_by_box(), BoundingVolume::is_empty(), and ReferenceCount::local_object().
bool BoundingSphere::extend_by_point | ( | const LPoint3f & | point | ) | [protected, virtual] |
Extends the volume to include the indicated point.
Returns true if possible, false if not.
Reimplemented from GeometricBoundingVolume.
Definition at line 207 of file boundingSphere.cxx.
References BoundingVolume::is_empty(), BoundingVolume::is_infinite(), and LVecBase3f::is_nan().
bool BoundingSphere::extend_by_sphere | ( | const BoundingSphere * | sphere | ) | [protected, virtual] |
Double-dispatch support: called by extend_other() when the type we're extending by is known to be a sphere.
Reimplemented from BoundingVolume.
Definition at line 230 of file boundingSphere.cxx.
References BoundingVolume::is_empty(), and BoundingVolume::is_infinite().
static void BoundingSphere::init_type | ( | ) | [inline, static] |
This function is declared non-inline to work around a compiler bug in g++ 2.96.
Making it inline seems to cause problems in the optimizer.
Reimplemented from FiniteBoundingVolume.
Definition at line 95 of file boundingSphere.h.
References FiniteBoundingVolume::init_type().