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isosurf.h

00001 // 00002 // isosurf.h 00003 // 00004 // Copyright (C) 1996 Limit Point Systems, Inc. 00005 // 00006 // Author: Curtis Janssen <cljanss@limitpt.com> 00007 // Maintainer: LPS 00008 // 00009 // This file is part of the SC Toolkit. 00010 // 00011 // The SC Toolkit is free software; you can redistribute it and/or modify 00012 // it under the terms of the GNU Library General Public License as published by 00013 // the Free Software Foundation; either version 2, or (at your option) 00014 // any later version. 00015 // 00016 // The SC Toolkit is distributed in the hope that it will be useful, 00017 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00018 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00019 // GNU Library General Public License for more details. 00020 // 00021 // You should have received a copy of the GNU Library General Public License 00022 // along with the SC Toolkit; see the file COPYING.LIB. If not, write to 00023 // the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. 00024 // 00025 // The U.S. Government is granted a limited license as per AL 91-7. 00026 // 00027 00028 #ifndef _math_isosurf_isosurf_h 00029 #define _math_isosurf_isosurf_h 00030 00031 #ifdef __GNUC__ 00032 #pragma interface 00033 #endif 00034 00035 #include <vector> 00036 00037 #include <math/isosurf/surf.h> 00038 00039 namespace sc { 00040 00041 class IsosurfaceGen { 00042 protected: 00043 double _resolution; 00044 public: 00045 IsosurfaceGen(); 00046 virtual ~IsosurfaceGen(); 00047 virtual void isosurface(double value, 00048 TriangulatedSurface& surf) = 0; 00049 virtual void set_resolution(double); 00050 }; 00051 00052 class ImplicitSurfacePolygonizer: public IsosurfaceGen { 00053 private: 00054 // These static data and members are used to interface to the 00055 // implicit.c routine provided in Graphics Gems IV. 00056 static ImplicitSurfacePolygonizer* current; 00057 static int add_triangle_to_current(int,int,int,VERTICES); 00058 static double value_of_current(double x, double y, double z); 00059 protected: 00060 Ref<Volume> _volume; 00061 00062 std::vector<Ref<Vertex> > _tmp_vertices; 00063 00064 TriangulatedSurface* _surf; 00065 double _value; 00066 public: 00067 ImplicitSurfacePolygonizer(const Ref<Volume>&); 00068 virtual ~ImplicitSurfacePolygonizer(); 00069 virtual void isosurface(double value, 00070 TriangulatedSurface& surf); 00071 }; 00072 00073 } 00074 00075 #endif 00076 00077 // Local Variables: 00078 // mode: c++ 00079 // c-file-style: "CLJ" 00080 // End:

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