Panda3D
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00001 // Filename: boundingLine.h 00002 // Created by: drose (04Jul00) 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 BOUNDINGLINE_H 00016 #define BOUNDINGLINE_H 00017 00018 #include "pandabase.h" 00019 00020 #include "geometricBoundingVolume.h" 00021 00022 //////////////////////////////////////////////////////////////////// 00023 // Class : BoundingLine 00024 // Description : This funny bounding volume is an infinite line with 00025 // no thickness and extending to infinity in both 00026 // directions. 00027 // 00028 // Note that it *always* extends in both directions, 00029 // despite the fact that you specify two points to the 00030 // constructor. These are not endpoints, they are two 00031 // arbitrary points on the line. 00032 //////////////////////////////////////////////////////////////////// 00033 class EXPCL_PANDA_MATHUTIL BoundingLine : public GeometricBoundingVolume { 00034 public: 00035 INLINE_MATHUTIL BoundingLine(); 00036 00037 PUBLISHED: 00038 INLINE_MATHUTIL BoundingLine(const LPoint3 &a, const LPoint3 &b); 00039 ALLOC_DELETED_CHAIN(BoundingLine); 00040 00041 public: 00042 virtual BoundingVolume *make_copy() const; 00043 00044 virtual LPoint3 get_approx_center() const; 00045 virtual void xform(const LMatrix4 &mat); 00046 00047 virtual void output(ostream &out) const; 00048 00049 PUBLISHED: 00050 INLINE_MATHUTIL const LPoint3 &get_point_a() const; 00051 INLINE_MATHUTIL LPoint3 get_point_b() const; 00052 00053 public: 00054 virtual const BoundingLine *as_bounding_line() const; 00055 00056 protected: 00057 virtual bool extend_other(BoundingVolume *other) const; 00058 virtual bool around_other(BoundingVolume *other, 00059 const BoundingVolume **first, 00060 const BoundingVolume **last) const; 00061 virtual int contains_other(const BoundingVolume *other) const; 00062 00063 virtual bool extend_by_line(const BoundingLine *line); 00064 00065 virtual int contains_sphere(const BoundingSphere *sphere) const; 00066 virtual int contains_box(const BoundingBox *box) const; 00067 00068 PN_stdfloat sqr_dist_to_line(const LPoint3 &point) const; 00069 00070 private: 00071 LPoint3 _origin; 00072 LVector3 _vector; 00073 00074 00075 public: 00076 static TypeHandle get_class_type() { 00077 return _type_handle; 00078 } 00079 static void init_type() { 00080 GeometricBoundingVolume::init_type(); 00081 register_type(_type_handle, "BoundingLine", 00082 GeometricBoundingVolume::get_class_type()); 00083 } 00084 virtual TypeHandle get_type() const { 00085 return get_class_type(); 00086 } 00087 virtual TypeHandle force_init_type() {init_type(); return get_class_type();} 00088 00089 private: 00090 static TypeHandle _type_handle; 00091 00092 friend class BoundingSphere; 00093 friend class BoundingBox; 00094 }; 00095 00096 #include "boundingLine.I" 00097 00098 #endif