00001 /**************************************************************************** 00002 00003 This file is part of the GLC-lib library. 00004 Copyright (C) 2005-2008 Laurent Ribon (laumaya@users.sourceforge.net) 00005 Version 2.0.0 Beta 1, packaged on April 2010. 00006 00007 http://glc-lib.sourceforge.net 00008 00009 GLC-lib is free software; you can redistribute it and/or modify 00010 it under the terms of the GNU General Public License as published by 00011 the Free Software Foundation; either version 2 of the License, or 00012 (at your option) any later version. 00013 00014 GLC-lib is distributed in the hope that it will be useful, 00015 but WITHOUT ANY WARRANTY; without even the implied warranty of 00016 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00017 GNU General Public License for more details. 00018 00019 You should have received a copy of the GNU General Public License 00020 along with GLC-lib; if not, write to the Free Software 00021 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00022 00023 *****************************************************************************/ 00025 00026 #ifndef GLC_FRUSTUM_H_ 00027 #define GLC_FRUSTUM_H_ 00028 00029 #include "../maths/glc_plane.h" 00030 #include "../glc_boundingbox.h" 00031 #include "../glc_config.h" 00032 00033 class GLC_LIB_EXPORT GLC_Viewport; 00034 00037 00040 00041 class GLC_LIB_EXPORT GLC_Frustum 00042 { 00043 private: 00044 enum planeId 00045 { 00046 LeftPlane= 0, 00047 RightPlane= 1, 00048 TopPlane= 2, 00049 BottomPlane= 3, 00050 NearPlane= 4, 00051 FarPlane= 5 00052 }; 00053 public: 00054 enum Localisation 00055 { 00056 InFrustum = 0, 00057 IntersectFrustum = 1, 00058 OutFrustum= 3 00059 }; 00061 00063 00064 public: 00066 GLC_Frustum(); 00067 00069 GLC_Frustum(const GLC_Frustum&); 00070 00072 ~GLC_Frustum(); 00074 00076 00078 00079 public: 00080 00082 inline GLC_Plane leftClippingPlane() const 00083 {return m_PlaneList.at(LeftPlane);} 00084 00086 inline GLC_Plane rightClippingPlane() const 00087 {return m_PlaneList.at(RightPlane);} 00088 00090 inline GLC_Plane topClippingPlane() const 00091 {return m_PlaneList.at(TopPlane);} 00092 00094 inline GLC_Plane bottomClippingPlane() const 00095 {return m_PlaneList.at(BottomPlane);} 00096 00098 inline GLC_Plane nearClippingPlane() const 00099 {return m_PlaneList.at(NearPlane);} 00100 00102 inline GLC_Plane farClippingPlane() const 00103 {return m_PlaneList.at(FarPlane);} 00104 00106 Localisation localizeBoundingBox(const GLC_BoundingBox&) const; 00107 00109 Localisation localizeSphere(const GLC_Point3d&, double) const; 00110 00112 00114 00116 00117 public: 00118 00120 inline void setLeftClippingPlane(const GLC_Plane& plane) 00121 {m_PlaneList[LeftPlane]= plane;} 00122 00124 inline void setRightClippingPlane(const GLC_Plane& plane) 00125 {m_PlaneList[RightPlane]= plane;} 00126 00128 inline void setTopClippingPlane(const GLC_Plane& plane) 00129 {m_PlaneList[TopPlane]= plane;} 00130 00132 inline void setBottomClippingPlane(const GLC_Plane& plane) 00133 {m_PlaneList[BottomPlane]= plane;} 00134 00136 inline void setNearClippingPlane(const GLC_Plane& plane) 00137 {m_PlaneList[NearPlane]= plane;} 00138 00140 inline void setFarClippingPlane(const GLC_Plane& plane) 00141 {m_PlaneList[FarPlane]= plane;} 00142 00144 00145 bool update(const GLC_Matrix4x4&); 00146 00148 00149 // Private services function 00151 private: 00153 Localisation localizeSphereToPlane(const GLC_Point3d&, double, const GLC_Plane&) const; 00154 00156 // Private Member 00158 private: 00159 00161 QList<GLC_Plane> m_PlaneList; 00162 00164 GLC_Matrix4x4 m_PreviousMatrix; 00165 }; 00166 00167 #endif /* GLC_FRUSTUM_H_ */