csgeom/sphere.h
Go to the documentation of this file.00001 /* 00002 Copyright (C) 2001 by Jorrit Tyberghein 00003 00004 This library is free software; you can redistribute it and/or 00005 modify it under the terms of the GNU Library General Public 00006 License as published by the Free Software Foundation; either 00007 version 2 of the License, or (at your option) any later version. 00008 00009 This library is distributed in the hope that it will be useful, 00010 but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00012 Library General Public License for more details. 00013 00014 You should have received a copy of the GNU Library General Public 00015 License along with this library; if not, write to the Free 00016 Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 00017 */ 00018 00019 #ifndef __CS_SPHERE_H__ 00020 #define __CS_SPHERE_H__ 00021 00029 #include "csextern.h" 00030 00031 #include "cstypes.h" 00032 #include "csgeom/math3d.h" 00033 #include "csgeom/vector3.h" 00034 00035 class csTransform; 00036 00040 class CS_CRYSTALSPACE_EXPORT csSphere 00041 { 00042 private: 00043 csVector3 center; 00044 float radius; 00045 00046 public: 00048 csSphere () 00049 { 00050 center.Set (0, 0, 0); 00051 radius = 0; 00052 } 00053 00055 csSphere (const csVector3& center, float radius) 00056 { 00057 csSphere::center = center; 00058 csSphere::radius = radius; 00059 } 00060 00062 csSphere (const csSphere& s) { center = s.center; radius = s.radius; } 00063 00065 inline csVector3& GetCenter () { return center; } 00067 inline const csVector3& GetCenter () const { return center; } 00069 inline void SetCenter (const csVector3& c) { center = c; } 00071 inline float GetRadius () const { return radius; } 00073 inline void SetRadius (float r) { radius = r; } 00074 00076 void Union (const csVector3& ocenter, float oradius); 00077 00079 friend CS_CRYSTALSPACE_EXPORT csSphere operator+ (const csSphere& s1, 00080 const csSphere& s2); 00082 csSphere& operator+= (const csSphere& s) 00083 { 00084 Union (s.center, s.radius); 00085 return *this; 00086 } 00087 00089 bool TestIntersect (const csSphere& sphere) const 00090 { 00091 float sqDist = csSquaredDist::PointPoint (center, sphere.center); 00092 return (sqDist - (csSquare (radius + sphere.radius))) < 0; 00093 } 00094 }; 00095 00099 class CS_CRYSTALSPACE_EXPORT csEllipsoid 00100 { 00101 private: 00102 csVector3 center; 00103 csVector3 radius; 00104 00105 public: 00107 csEllipsoid () 00108 { 00109 center.Set (0, 0, 0); 00110 radius.Set (0, 0, 0); 00111 } 00112 00114 csEllipsoid (const csVector3& center, const csVector3& radius) 00115 { 00116 csEllipsoid::center = center; 00117 csEllipsoid::radius = radius; 00118 } 00119 00121 csEllipsoid (const csEllipsoid& s) { center = s.center; radius = s.radius; } 00122 00124 inline csVector3& GetCenter () { return center; } 00126 inline const csVector3& GetCenter () const { return center; } 00128 inline void SetCenter (const csVector3& c) { center = c; } 00130 inline csVector3& GetRadius () { return radius; } 00132 inline const csVector3& GetRadius () const { return radius; } 00134 inline void SetRadius (const csVector3& r) { radius = r; } 00135 }; 00136 00139 #endif // __CS_SPHERE_H__ 00140
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