isosurf.h Source File

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 <math/isosurf/surf.h>
00036 
00037 namespace sc {
00038 
00039 class IsosurfaceGen {
00040   protected:
00041     double _resolution;
00042   public:
00043     IsosurfaceGen();
00044     virtual ~IsosurfaceGen();
00045     virtual void isosurface(double value,
00046                             TriangulatedSurface& surf) = 0;
00047     virtual void set_resolution(double);
00048 };
00049 
00050 class ImplicitSurfacePolygonizer: public IsosurfaceGen {
00051   private:
00052     // These static data and members are used to interface to the
00053     // implicit.c routine provided in Graphics Gems IV.
00054     static ImplicitSurfacePolygonizer* current;
00055     static int add_triangle_to_current(int,int,int,VERTICES);
00056     static double value_of_current(double x, double y, double z);
00057   protected:
00058     Ref<Volume> _volume;
00059 
00060 #ifdef HAVE_STL
00061     std::vector<Ref<Vertex> >  _tmp_vertices;
00062 #else
00063     Array<Ref<Vertex> >  _tmp_vertices;
00064 #endif
00065     TriangulatedSurface* _surf;
00066     double _value;
00067   public:
00068     ImplicitSurfacePolygonizer(const Ref<Volume>&);
00069     virtual ~ImplicitSurfacePolygonizer();
00070     virtual void isosurface(double value,
00071                             TriangulatedSurface& surf);
00072 };  
00073 
00074 }
00075 
00076 #endif
00077 
00078 // Local Variables:
00079 // mode: c++
00080 // c-file-style: "CLJ"
00081 // End: