Panda3D
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This defines a bounding convex hexahedron. More...
#include "boundingHexahedron.h"
Public Member Functions | |
BoundingHexahedron (const LFrustum &frustum, bool is_ortho, CoordinateSystem cs=CS_default) | |
BoundingHexahedron (const LPoint3 &fll, const LPoint3 &flr, const LPoint3 &fur, const LPoint3 &ful, const LPoint3 &nll, const LPoint3 &nlr, const LPoint3 &nur, const LPoint3 &nul) | |
virtual const BoundingHexahedron * | as_bounding_hexahedron () const |
Virtual downcast method. More... | |
virtual TypeHandle | force_init_type () |
virtual LPoint3 | get_approx_center () const |
virtual LPoint3 | get_max () const |
virtual LPoint3 | get_min () const |
int | get_num_planes () const |
Returns 6: the number of faces of a hexahedron. More... | |
int | get_num_points () const |
Returns 8: the number of vertices of a hexahedron. More... | |
LPlane | get_plane (int n) const |
Returns the nth face of the hexahedron. More... | |
LPoint3 | get_point (int n) const |
Returns the nth vertex of the hexahedron. More... | |
virtual TypeHandle | get_type () const |
virtual BoundingVolume * | make_copy () const |
MAKE_SEQ (get_points, get_num_points, get_point) | |
MAKE_SEQ (get_planes, get_num_planes, get_plane) | |
virtual void | output (ostream &out) const |
virtual void | write (ostream &out, int indent_level=0) const |
virtual void | xform (const LMatrix4 &mat) |
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virtual const FiniteBoundingVolume * | as_finite_bounding_volume () const |
Virtual downcast method. More... | |
virtual PN_stdfloat | get_volume () const |
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bool | around (const GeometricBoundingVolume **first, const GeometricBoundingVolume **last) |
Resets the volume to enclose only the volumes indicated. More... | |
bool | around (const LPoint3 *first, const LPoint3 *last) |
Resets the volume to enclose only the points indicated. More... | |
virtual const GeometricBoundingVolume * | as_geometric_bounding_volume () const |
Virtual downcast method. More... | |
int | contains (const GeometricBoundingVolume *vol) const |
Returns the appropriate set of IntersectionFlags to indicate the amount of intersection with the indicated volume. More... | |
int | contains (const LPoint3 &point) const |
Returns the appropriate set of IntersectionFlags to indicate the amount of intersection with the indicated point. More... | |
int | contains (const LPoint3 &a, const LPoint3 &b) const |
Returns the appropriate set of IntersectionFlags to indicate the amount of intersection with the indicated line segment. More... | |
bool | extend_by (const GeometricBoundingVolume *vol) |
Increases the size of the volume to include the given volume. More... | |
bool | extend_by (const LPoint3 &point) |
Increases the size of the volume to include the given point. More... | |
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bool | around (const BoundingVolume **first, const BoundingVolume **last) |
Resets the volume to enclose only the volumes indicated. More... | |
virtual const BoundingBox * | as_bounding_box () const |
Virtual downcast method. More... | |
virtual const BoundingLine * | as_bounding_line () const |
Virtual downcast method. More... | |
virtual const BoundingPlane * | as_bounding_plane () const |
Virtual downcast method. More... | |
virtual const BoundingSphere * | as_bounding_sphere () const |
Virtual downcast method. More... | |
int | contains (const BoundingVolume *vol) const |
Returns the appropriate set of IntersectionFlags to indicate the amount of intersection with the indicated volume. More... | |
bool | extend_by (const BoundingVolume *vol) |
Increases the size of the volume to include the given volume. More... | |
bool | is_empty () const |
Any kind of volume might be empty. More... | |
bool | is_infinite () const |
The other side of the empty coin is an infinite volume. More... | |
void | set_infinite () |
Marks the volume as infinite, even if it is normally finite. More... | |
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TypedReferenceCount (const TypedReferenceCount ©) | |
void | operator= (const TypedReferenceCount ©) |
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TypedObject (const TypedObject ©) | |
TypedObject * | as_typed_object () |
Returns the object, upcast (if necessary) to a TypedObject pointer. More... | |
const TypedObject * | as_typed_object () const |
Returns the object, upcast (if necessary) to a TypedObject pointer. More... | |
int | get_best_parent_from_Set (const std::set< int > &) const |
int | get_type_index () const |
Returns the internal index number associated with this object's TypeHandle, a unique number for each different type. More... | |
bool | is_exact_type (TypeHandle handle) const |
Returns true if the current object is the indicated type exactly. More... | |
bool | is_of_type (TypeHandle handle) const |
Returns true if the current object is or derives from the indicated type. More... | |
void | operator= (const TypedObject ©) |
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int | get_ref_count () const |
Returns the current reference count. More... | |
WeakReferenceList * | get_weak_list () const |
Returns the WeakReferenceList associated with this ReferenceCount object. More... | |
bool | has_weak_list () const |
Returns true if this particular ReferenceCount object has a WeakReferenceList created, false otherwise. More... | |
void | local_object () |
This function should be called, once, immediately after creating a new instance of some ReferenceCount-derived object on the stack. More... | |
void | ref () const |
Explicitly increments the reference count. More... | |
bool | test_ref_count_integrity () const |
Does some easy checks to make sure that the reference count isn't completely bogus. More... | |
bool | test_ref_count_nonzero () const |
Does some easy checks to make sure that the reference count isn't zero, or completely bogus. More... | |
virtual bool | unref () const |
Explicitly decrements the reference count. More... | |
void | weak_ref (WeakPointerToVoid *ptv) |
Adds the indicated PointerToVoid as a weak reference to this object. More... | |
void | weak_unref (WeakPointerToVoid *ptv) |
Removes the indicated PointerToVoid as a weak reference to this object. More... | |
Static Public Member Functions | |
static TypeHandle | get_class_type () |
static void | init_type () |
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static TypeHandle | get_class_type () |
static void | init_type () |
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static TypeHandle | get_class_type () |
static void | init_type () |
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static TypeHandle | get_class_type () |
static void | init_type () |
static BoundsType | string_bounds_type (const string &str) |
Returns the BoundsType corresponding to the indicated string. More... | |
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static TypeHandle | get_class_type () |
static void | init_type () |
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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. More... | |
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static TypeHandle | get_class_type () |
static void | init_type () |
Friends | |
class | BoundingBox |
class | BoundingSphere |
Additional Inherited Members | |
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enum | BoundsType { BT_default, BT_best, BT_sphere, BT_box, BT_fastest } |
enum | IntersectionFlags { IF_no_intersection = 0, IF_possible = 0x01, IF_some = 0x02, IF_all = 0x04, IF_dont_understand = 0x08 } |
This defines a bounding convex hexahedron.
It is typically used to represent a frustum, but may represent any enclosing convex hexahedron, including simple boxes. However, if all you want is an axis-aligned bounding box, you may be better off with the simpler BoundingBox class.
Definition at line 36 of file boundingHexahedron.h.
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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 211 of file boundingHexahedron.cxx.
References BoundingBox::get_maxq(), BoundingBox::get_minq(), BoundingBox::get_point(), get_point(), BoundingVolume::is_empty(), and BoundingVolume::is_infinite().
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Returns 6: the number of faces of a hexahedron.
Definition at line 52 of file boundingHexahedron.I.
References get_plane().
Referenced by get_point().
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inline |
Returns 8: the number of vertices of a hexahedron.
Definition at line 31 of file boundingHexahedron.I.
References get_point().
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inline |
Returns the nth face of the hexahedron.
Definition at line 62 of file boundingHexahedron.I.
Referenced by get_num_planes().
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inline |
Returns the nth vertex of the hexahedron.
Definition at line 41 of file boundingHexahedron.I.
References get_num_planes(), and LPoint3f::zero().
Referenced by as_bounding_hexahedron(), BoundingPlane::as_bounding_plane(), CullTraverser::draw_bounding_volume(), PortalClipper::draw_hexahedron(), and get_num_points().