00001 /*---------------------------------------------------------------------------*\ 00002 * OpenSG * 00003 * * 00004 * * 00005 * Copyright (C) 2000-2002 by the OpenSG Forum * 00006 * * 00007 * www.opensg.org * 00008 * * 00009 * contact: dirk@opensg.org, gerrit.voss@vossg.org, jbehr@zgdv.de * 00010 * * 00011 \*---------------------------------------------------------------------------*/ 00012 /*---------------------------------------------------------------------------*\ 00013 * License * 00014 * * 00015 * This library is free software; you can redistribute it and/or modify it * 00016 * under the terms of the GNU Library General Public License as published * 00017 * by the Free Software Foundation, version 2. * 00018 * * 00019 * This library is distributed in the hope that it will be useful, but * 00020 * WITHOUT ANY WARRANTY; without even the implied warranty of * 00021 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * 00022 * Library General Public License for more details. * 00023 * * 00024 * You should have received a copy of the GNU Library General Public * 00025 * License along with this library; if not, write to the Free Software * 00026 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * 00027 * * 00028 \*---------------------------------------------------------------------------*/ 00029 /*---------------------------------------------------------------------------*\ 00030 * Changes * 00031 * * 00032 * * 00033 * * 00034 * * 00035 * * 00036 * * 00037 \*---------------------------------------------------------------------------*/ 00038 00039 #ifndef _OSG_TILE_GEOMETRY_LOAD_H_ 00040 #define _OSG_TILE_GEOMETRY_LOAD_H_ 00041 #ifdef __sgi 00042 #pragma once 00043 #endif 00044 00045 #include <OSGBaseTypes.h> 00046 #include <OSGSystemDef.h> 00047 #include <OSGGeometry.h> 00048 #include <OSGCamera.h> 00049 #include <OSGViewport.h> 00050 00051 #include <vector> 00052 00053 OSG_BEGIN_NAMESPACE 00054 00055 #define FACE_DISTRIBUTION_SAMPLING_COUNT 8 00056 00057 class OSG_SYSTEMLIB_DLLMAPPING TileGeometryLoad 00058 { 00059 /*========================== PUBLIC =================================*/ 00060 public: 00061 00062 /*---------------------------------------------------------------------*/ 00066 TileGeometryLoad(NodePtr node,bool useFaceDistribution=false); 00067 TileGeometryLoad(const TileGeometryLoad &source); 00068 00070 /*---------------------------------------------------------------------*/ 00074 virtual ~TileGeometryLoad(void); 00075 00077 /*---------------------------------------------------------------------*/ 00081 void updateView ( Matrix &viewing, 00082 Matrix &projection, 00083 Real32 near, 00084 UInt32 width, 00085 UInt32 height ); 00086 void updateGeometry ( ); 00087 bool checkRegion ( Int32 min[2], 00088 Int32 max[2] ); 00089 bool isVisible ( ) const; 00090 00092 /*---------------------------------------------------------------------*/ 00097 /*---------------------------------------------------------------------*/ 00101 NodePtr getNode() const; 00102 const Int32 * getMin(); 00103 const Int32 * getMax(); 00104 UInt32 getFaces(); 00105 Real32 getVisibleFraction( const Int32 wmin[2], 00106 const Int32 wmax[2], 00107 Int32 viswmin[2], 00108 Int32 viswmax[2] ); 00109 bool getVisibleArea ( const Int32 wmin[2], 00110 const Int32 wmax[2], 00111 Int32 viswmin[2], 00112 Int32 viswmax[2] ); 00113 00115 /*---------------------------------------------------------------------*/ 00120 /*---------------------------------------------------------------------*/ 00124 TileGeometryLoad& operator = (const TileGeometryLoad &source); 00125 00127 /*---------------------------------------------------------------------*/ 00131 bool operator < (const TileGeometryLoad &other) const; 00132 //bool operator == (const TileGeometryLoad &other) const; 00133 //bool operator != (const TileGeometryLoad &other) const; 00134 00136 /*---------------------------------------------------------------------*/ 00140 void dump(void); 00141 00143 /*========================= PROTECTED ===============================*/ 00144 protected: 00145 00146 /*---------------------------------------------------------------------*/ 00150 Real32 getFaceDistribution(UInt32 dir,Real32 cut); 00151 00154 /*---------------------------------------------------------------------*/ 00158 NodePtr _node; 00159 GeometryPtr _geometry; 00160 UInt32 _faces; 00161 Int32 _min[2]; 00162 Int32 _max[2]; 00163 std::vector<std::vector<Real32> > _faceDistribution; 00164 UInt32 _faceDistDirX; 00165 UInt32 _faceDistDirY; 00166 bool _visible; 00167 bool _useFaceDistribution; 00168 Real32 _areaSize; 00169 00172 /*---------------------------------------------------------------------*/ 00176 static std::vector<Plane> _directions; 00177 00180 /*========================== PRIVATE ================================*/ 00181 private: 00182 00183 }; 00184 00185 OSG_END_NAMESPACE 00186 00187 #include <OSGTileGeometryLoad.inl> 00188 00189 #define OSGTILEGEOMETRYLOAD_HEADER_CVSID "@(#)$Id:$" 00190 00191 #endif /* OSG_TILE_GEOMETRY_LOAD_H */
1.4.3