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omniBoundingVolume.h
00001 // Filename: omniBoundingVolume.h
00002 // Created by:  drose (22Jun00)
00003 //
00004 ////////////////////////////////////////////////////////////////////
00005 //
00006 // PANDA 3D SOFTWARE
00007 // Copyright (c) Carnegie Mellon University.  All rights reserved.
00008 //
00009 // All use of this software is subject to the terms of the revised BSD
00010 // license.  You should have received a copy of this license along
00011 // with this source code in a file named "LICENSE."
00012 //
00013 ////////////////////////////////////////////////////////////////////
00014 
00015 #ifndef OMNIBOUNDINGVOLUME_H
00016 #define OMNIBOUNDINGVOLUME_H
00017 
00018 #include "pandabase.h"
00019 
00020 #include "geometricBoundingVolume.h"
00021 
00022 ////////////////////////////////////////////////////////////////////
00023 //       Class : OmniBoundingVolume
00024 // Description : This is a special kind of GeometricBoundingVolume
00025 //               that fills all of space.
00026 ////////////////////////////////////////////////////////////////////
00027 class EXPCL_PANDA_MATHUTIL OmniBoundingVolume : public GeometricBoundingVolume {
00028 PUBLISHED:
00029   INLINE_MATHUTIL OmniBoundingVolume();
00030 
00031 public:
00032   virtual BoundingVolume *make_copy() const;
00033 
00034   virtual LPoint3 get_approx_center() const;
00035   virtual void xform(const LMatrix4 &mat);
00036 
00037   virtual void output(ostream &out) const;
00038 
00039 protected:
00040   virtual bool extend_other(BoundingVolume *other) const;
00041   virtual bool around_other(BoundingVolume *other,
00042                             const BoundingVolume **first,
00043                             const BoundingVolume **last) const;
00044   virtual int contains_other(const BoundingVolume *other) const;
00045 
00046 
00047   virtual bool extend_by_point(const LPoint3 &point);
00048   virtual bool extend_by_sphere(const BoundingSphere *sphere);
00049   virtual bool extend_by_box(const BoundingBox *box);
00050   virtual bool extend_by_hexahedron(const BoundingHexahedron *hexahedron);
00051 
00052   virtual bool around_points(const LPoint3 *first,
00053                              const LPoint3 *last);
00054   virtual bool around_spheres(const BoundingVolume **first,
00055                               const BoundingVolume **last);
00056   virtual bool around_boxes(const BoundingVolume **first,
00057                             const BoundingVolume **last);
00058   virtual bool around_hexahedrons(const BoundingVolume **first,
00059                                   const BoundingVolume **last);
00060 
00061   virtual int contains_point(const LPoint3 &point) const;
00062   virtual int contains_lineseg(const LPoint3 &a, const LPoint3 &b) const;
00063   virtual int contains_hexahedron(const BoundingHexahedron *hexahedron) const;
00064   virtual int contains_sphere(const BoundingSphere *sphere) const;
00065   virtual int contains_box(const BoundingBox *box) const;
00066 
00067 public:
00068   static TypeHandle get_class_type() {
00069     return _type_handle;
00070   }
00071   static void init_type() {
00072     GeometricBoundingVolume::init_type();
00073     register_type(_type_handle, "OmniBoundingVolume",
00074                   GeometricBoundingVolume::get_class_type());
00075   }
00076   virtual TypeHandle get_type() const {
00077     return get_class_type();
00078   }
00079   virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
00080 
00081 private:
00082   static TypeHandle _type_handle;
00083 
00084   friend class BoundingHexahedron;
00085 };
00086 
00087 #include "omniBoundingVolume.I"
00088 
00089 #endif
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