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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 // These static data and members are used to interface to the 00054 // implicit.c routine provided in Graphics Gems IV. 00055 static ImplicitSurfacePolygonizer* current; 00056 // The following should not really be used publically. 00057 // they are public to permit access through internal 00058 // C-language functions. 00059 public: 00061 static int add_triangle_to_current(int,int,int,VERTICES); 00063 static double value_of_current(double x, double y, double z); 00064 protected: 00065 Ref<Volume> _volume; 00066 00067 std::vector<Ref<Vertex> > _tmp_vertices; 00068 00069 TriangulatedSurface* _surf; 00070 double _value; 00071 public: 00072 ImplicitSurfacePolygonizer(const Ref<Volume>&); 00073 virtual ~ImplicitSurfacePolygonizer(); 00074 virtual void isosurface(double value, 00075 TriangulatedSurface& surf); 00076 }; 00077 00078 } 00079 00080 #endif 00081 00082 // Local Variables: 00083 // mode: c++ 00084 // c-file-style: "CLJ" 00085 // End:

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