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_FRUSTUM_H_ 00025 #define GLC_FRUSTUM_H_ 00026 00027 #include "../maths/glc_plane.h" 00028 #include "../glc_boundingbox.h" 00029 #include "../glc_config.h" 00030 00031 class GLC_LIB_EXPORT GLC_Viewport; 00032 00035 00038 00039 class GLC_LIB_EXPORT GLC_Frustum 00040 { 00041 private: 00042 enum planeId 00043 { 00044 LeftPlane= 0, 00045 RightPlane= 1, 00046 TopPlane= 2, 00047 BottomPlane= 3, 00048 NearPlane= 4, 00049 FarPlane= 5 00050 }; 00051 public: 00052 enum Localisation 00053 { 00054 InFrustum = 0, 00055 IntersectFrustum = 1, 00056 OutFrustum= 3 00057 }; 00059 00061 00062 public: 00064 GLC_Frustum(); 00065 00067 GLC_Frustum(const GLC_Frustum&); 00068 00070 ~GLC_Frustum(); 00072 00074 00076 00077 public: 00078 00080 inline GLC_Plane leftClippingPlane() const 00081 {return m_PlaneList.at(LeftPlane);} 00082 00084 inline GLC_Plane rightClippingPlane() const 00085 {return m_PlaneList.at(RightPlane);} 00086 00088 inline GLC_Plane topClippingPlane() const 00089 {return m_PlaneList.at(TopPlane);} 00090 00092 inline GLC_Plane bottomClippingPlane() const 00093 {return m_PlaneList.at(BottomPlane);} 00094 00096 inline GLC_Plane nearClippingPlane() const 00097 {return m_PlaneList.at(NearPlane);} 00098 00100 inline GLC_Plane farClippingPlane() const 00101 {return m_PlaneList.at(FarPlane);} 00102 00104 Localisation localizeBoundingBox(const GLC_BoundingBox&) const; 00105 00107 Localisation localizeSphere(const GLC_Point3d&, double) const; 00108 00110 00112 00114 00115 public: 00116 00118 inline void setLeftClippingPlane(const GLC_Plane& plane) 00119 {m_PlaneList[LeftPlane]= plane;} 00120 00122 inline void setRightClippingPlane(const GLC_Plane& plane) 00123 {m_PlaneList[RightPlane]= plane;} 00124 00126 inline void setTopClippingPlane(const GLC_Plane& plane) 00127 {m_PlaneList[TopPlane]= plane;} 00128 00130 inline void setBottomClippingPlane(const GLC_Plane& plane) 00131 {m_PlaneList[BottomPlane]= plane;} 00132 00134 inline void setNearClippingPlane(const GLC_Plane& plane) 00135 {m_PlaneList[NearPlane]= plane;} 00136 00138 inline void setFarClippingPlane(const GLC_Plane& plane) 00139 {m_PlaneList[FarPlane]= plane;} 00140 00142 00143 bool update(const GLC_Matrix4x4&); 00144 00146 00147 // Private services function 00149 private: 00151 Localisation localizeSphereToPlane(const GLC_Point3d&, double, const GLC_Plane&) const; 00152 00154 // Private Member 00156 private: 00157 00159 QList<GLC_Plane> m_PlaneList; 00160 00162 GLC_Matrix4x4 m_PreviousMatrix; 00163 }; 00164 00165 #endif /* GLC_FRUSTUM_H_ */