Panda3D
boundingBox.h
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1/**
2 * PANDA 3D SOFTWARE
3 * Copyright (c) Carnegie Mellon University. All rights reserved.
4 *
5 * All use of this software is subject to the terms of the revised BSD
6 * license. You should have received a copy of this license along
7 * with this source code in a file named "LICENSE."
8 *
9 * @file boundingBox.h
10 * @author drose
11 * @date 2007-05-31
12 */
13
14#ifndef BOUNDINGBOX_H
15#define BOUNDINGBOX_H
16
17#include "pandabase.h"
18
20#include "plane.h"
21
22/**
23 * An axis-aligned bounding box; that is, a minimum and maximum coordinate
24 * triple.
25 *
26 * This box is always axis-aligned. If you need a more general bounding box,
27 * try BoundingHexahedron.
28 */
29class EXPCL_PANDA_MATHUTIL BoundingBox : public FiniteBoundingVolume {
30PUBLISHED:
31 INLINE_MATHUTIL BoundingBox();
32 INLINE_MATHUTIL explicit BoundingBox(const LPoint3 &min, const LPoint3 &max);
33 ALLOC_DELETED_CHAIN(BoundingBox);
34
35public:
36 virtual BoundingVolume *make_copy() const;
37
38 virtual LPoint3 get_min() const;
39 virtual LPoint3 get_max() const;
40 virtual PN_stdfloat get_volume() const;
41
42 virtual LPoint3 get_approx_center() const;
43 virtual void xform(const LMatrix4 &mat);
44
45 virtual void output(std::ostream &out) const;
46
47
48PUBLISHED:
49 INLINE_MATHUTIL int get_num_points() const;
50 INLINE_MATHUTIL LPoint3 get_point(int n) const;
51 MAKE_SEQ(get_points, get_num_points, get_point);
52 INLINE_MATHUTIL int get_num_planes() const;
53 INLINE_MATHUTIL LPlane get_plane(int n) const;
54 MAKE_SEQ(get_planes, get_num_planes, get_plane);
55
56 MAKE_SEQ_PROPERTY(points, get_num_points, get_point);
57 MAKE_SEQ_PROPERTY(planes, get_num_planes, get_plane);
58
59 INLINE_MATHUTIL void set_min_max(const LPoint3 &min, const LPoint3 &max);
60
61public:
62 // Inline accessors for speed.
63 INLINE_MATHUTIL const LPoint3 &get_minq() const;
64 INLINE_MATHUTIL const LPoint3 &get_maxq() const;
65
66public:
67 virtual const BoundingBox *as_bounding_box() const;
68
69protected:
70 virtual bool extend_other(BoundingVolume *other) const;
71 virtual bool around_other(BoundingVolume *other,
72 const BoundingVolume **first,
73 const BoundingVolume **last) const;
74 virtual int contains_other(const BoundingVolume *other) const;
75
76
77 virtual bool extend_by_point(const LPoint3 &point);
78 virtual bool extend_by_box(const BoundingBox *box);
79 virtual bool extend_by_finite(const FiniteBoundingVolume *volume);
80
81 virtual bool around_points(const LPoint3 *first,
82 const LPoint3 *last);
83 virtual bool around_finite(const BoundingVolume **first,
84 const BoundingVolume **last);
85
86 virtual int contains_point(const LPoint3 &point) const;
87 virtual int contains_lineseg(const LPoint3 &a, const LPoint3 &b) const;
88 virtual int contains_hexahedron(const BoundingHexahedron *hexahedron) const;
89 virtual int contains_box(const BoundingBox *box) const;
90 virtual int contains_line(const BoundingLine *line) const;
91 virtual int contains_plane(const BoundingPlane *plane) const;
92 virtual int contains_finite(const FiniteBoundingVolume *volume) const;
93
94private:
95 LPoint3 _min;
96 LPoint3 _max;
97
98 static const int plane_def[6][3];
99
100public:
101 static TypeHandle get_class_type() {
102 return _type_handle;
103 }
104 static void init_type() {
105 FiniteBoundingVolume::init_type();
106 register_type(_type_handle, "BoundingBox",
107 FiniteBoundingVolume::get_class_type());
108 }
109 virtual TypeHandle get_type() const {
110 return get_class_type();
111 }
112 virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
113
114private:
115 static TypeHandle _type_handle;
116
117 friend class BoundingSphere;
118};
119
120#include "boundingBox.I"
121
122#endif
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
An axis-aligned bounding box; that is, a minimum and maximum coordinate triple.
Definition: boundingBox.h:29
This defines a bounding convex hexahedron.
This funny bounding volume is an infinite line with no thickness and extending to infinity in both di...
Definition: boundingLine.h:29
This funny bounding volume is an infinite plane that divides space into two regions: the part behind ...
Definition: boundingPlane.h:28
This defines a bounding sphere, consisting of a center and a radius.
This is an abstract class for any volume in any sense which can be said to define the locality of ref...
virtual const BoundingBox * as_bounding_box() const
Virtual downcast method.
A special kind of GeometricBoundingVolume that is known to be finite.
TypeHandle is the identifier used to differentiate C++ class types.
Definition: typeHandle.h:81
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
void register_type(TypeHandle &type_handle, const std::string &name)
This inline function is just a convenient way to call TypeRegistry::register_type(),...
Definition: register_type.I:22