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ExtendedMarchingCubesT.hh

00001 /*===========================================================================*\
00002  *                                                                           *
00003  *                                IsoEx                                      *
00004  *        Copyright (C) 2002 by Computer Graphics Group, RWTH Aachen         *
00005  *                         www.rwth-graphics.de                              *
00006  *                                                                           *
00007  *---------------------------------------------------------------------------* 
00008  *                                                                           *
00009  *                                License                                    *
00010  *                                                                           *
00011  *  This library is free software; you can redistribute it and/or modify it  *
00012  *  under the terms of the GNU Library General Public License as published   *
00013  *  by the Free Software Foundation, version 2.                              *
00014  *                                                                           *
00015  *  This library is distributed in the hope that it will be useful, but      *
00016  *  WITHOUT ANY WARRANTY; without even the implied warranty of               *
00017  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU        *
00018  *  Library General Public License for more details.                         *
00019  *                                                                           *
00020  *  You should have received a copy of the GNU Library General Public        *
00021  *  License along with this library; if not, write to the Free Software      *
00022  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.                *
00023  *                                                                           *
00024 \*===========================================================================*/
00025 
00026 //=============================================================================
00027 //
00028 //  CLASS ExtendedMarchingCubesT
00029 //
00030 //=============================================================================
00031 
00032 
00033 #ifndef ISOEX_EXTMARCHINGCUBEST_HH
00034 #define ISOEX_EXTMARCHINGCUBEST_HH
00035 
00036 
00037 //== INCLUDES =================================================================
00038 
00039 #include <IsoEx/Extractors/Edge2VertexMapT.hh>
00040 #include <IsoEx/Grids/Grid.hh>
00041 #include <vector>
00042 
00043 //== NAMESPACES ===============================================================
00044 
00045 namespace IsoEx {
00046 
00047 //== CLASS DEFINITION =========================================================
00048 
00049 
00061 template <class Mesh>
00062 class ExtendedMarchingCubesT
00063 {
00064 public:
00065    
00066   ExtendedMarchingCubesT(const Grid&  _grid,
00067                          Mesh&        _mesh,
00068                          double       _feature_angle);
00069 
00070   
00071 private:
00072 
00073   typedef typename Grid::PointIdx        PointIdx;
00074   typedef typename Grid::CubeIdx         CubeIdx;
00075   typedef typename Grid::CubeIterator    CubeIterator;
00076   typedef typename Mesh::VertexHandle    VertexHandle;
00077   typedef std::vector<VertexHandle>      VertexHandleVector;
00078   
00079 
00080   void process_cube(CubeIdx _idx);
00081 
00082   VertexHandle add_vertex(PointIdx _p0, PointIdx _p1);
00083   VertexHandle find_feature(const VertexHandleVector& _vhandles);
00084 
00085   void flip_edges();
00086 
00087 
00088 
00089   const Grid&      grid_;
00090   Mesh&            mesh_;
00091 
00092   float            feature_angle_;
00093   unsigned int     n_edges_, n_corners_;
00094 
00095   // maps an edge to the sample vertex generated on it
00096   Edge2VertexMapT<PointIdx, VertexHandle> edge2vertex_;
00097 };
00098 
00099 
00100 //-----------------------------------------------------------------------------
00101 
00102 
00107 template <class Mesh>
00108 void extended_marching_cubes(const Grid&  _grid,
00109                              Mesh&        _mesh,
00110                              double       _feature_angle)
00111 {
00112   ExtendedMarchingCubesT<Mesh> emc(_grid, _mesh, _feature_angle);
00113 }
00114 
00115 
00116 //=============================================================================
00117 } // namespace IsoEx
00118 //=============================================================================
00119 #if defined(INCLUDE_TEMPLATES) && !defined(ISOEX_EXTMARCHINGCUBEST_C)
00120 #define ISOEX_EXTMARCHINGCUBEST_TEMPLATES
00121 #include "ExtendedMarchingCubesT.cc"
00122 #endif
00123 //=============================================================================
00124 #endif // ISOEX_EXTMARCHINGCUBEST_HH defined
00125 //=============================================================================

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