00001 /**************************************************************************** 00002 00003 This file is part of the GLC-lib library. 00004 Copyright (C) 2005-2008 Laurent Ribon (laumaya@users.sourceforge.net) 00005 http://glc-lib.sourceforge.net 00006 00007 GLC-lib is free software; you can redistribute it and/or modify 00008 it under the terms of the GNU Lesser General Public License as published by 00009 the Free Software Foundation; either version 3 of the License, or 00010 (at your option) any later version. 00011 00012 GLC-lib is distributed in the hope that it will be useful, 00013 but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00015 GNU Lesser General Public License for more details. 00016 00017 You should have received a copy of the GNU Lesser General Public License 00018 along with GLC-lib; if not, write to the Free Software 00019 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00020 00021 *****************************************************************************/ 00023 00024 #ifndef GLC_PLANE_H_ 00025 #define GLC_PLANE_H_ 00026 00027 #include "glc_vector3d.h" 00028 00029 #include "../glc_config.h" 00030 00033 00036 00037 class GLC_LIB_EXPORT GLC_Plane 00038 { 00040 00042 00043 public: 00045 GLC_Plane(); 00046 00048 00049 GLC_Plane(double A, double B, double C, double D); 00050 00052 GLC_Plane(const GLC_Vector3d& normal, double minimumDistance); 00053 00055 GLC_Plane(const GLC_Vector3d& normal, const GLC_Point3d& point); 00056 00058 00059 GLC_Plane(const GLC_Point3d&, const GLC_Point3d&, const GLC_Point3d&); 00060 00062 GLC_Plane(const GLC_Plane&); 00063 00065 GLC_Plane &operator=(const GLC_Plane&); 00066 00068 ~GLC_Plane(); 00070 00072 00074 00075 public: 00076 00078 inline double coefA() const 00079 {return m_Eq[0];} 00080 00082 inline double coefB() const 00083 {return m_Eq[1];} 00084 00086 inline double coefC() const 00087 {return m_Eq[2];} 00088 00090 inline double coefD() const 00091 {return m_Eq[3];} 00092 00094 inline double distanceToPoint(const GLC_Point3d& p) const 00095 {return m_Eq[0] * p.x() + m_Eq[1] * p.y() + m_Eq[2] * p.z() + m_Eq[3];} 00096 00098 bool operator==(GLC_Plane) const; 00099 00101 inline bool operator!=(const GLC_Plane& p) const 00102 {return !operator==(p);} 00103 00105 inline GLC_Vector3d normal() const 00106 {return GLC_Vector3d(m_Eq[0], m_Eq[1], m_Eq[2]);} 00107 00109 inline bool lieOnThisPlane(const GLC_Point3d& p) 00110 {return (m_Eq[0] * p.x() + m_Eq[1] * p.y() + m_Eq[2] * p.z() + m_Eq[3]) == 0.0f;} 00111 00113 const double* data() const 00114 {return m_Eq;} 00115 00117 QString toString() const; 00119 00121 00123 00124 public: 00126 inline void setA(double a) 00127 {m_Eq[0]= a;} 00128 00130 inline void setB(double b) 00131 {m_Eq[1]= b;} 00132 00134 inline void setC(double c) 00135 {m_Eq[2]= c;} 00136 00138 inline void setD(double d) 00139 {m_Eq[3]= d;} 00140 00142 void normalize(); 00143 00145 GLC_Plane& setPlane(const GLC_Vector3d& normal, const GLC_Point3d& point); 00146 00147 00149 00151 // Private Member 00153 private: 00155 double m_Eq[4]; 00156 }; 00157 00158 #endif /* GLC_PLANE_H_ */