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128 lines
4.8 KiB
128 lines
4.8 KiB
5 months ago
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/*===========================================================================*\
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* *
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* IsoEx *
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* Copyright (C) 2002 by Computer Graphics Group, RWTH Aachen *
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* www.rwth-graphics.de *
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* *
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*---------------------------------------------------------------------------*
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* *
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* License *
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* *
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* This library is free software; you can redistribute it and/or modify it *
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* under the terms of the GNU Library General Public License as published *
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* by the Free Software Foundation, version 2. *
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* *
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* This library is distributed in the hope that it will be useful, but *
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* WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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* Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this library; if not, write to the Free Software *
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. *
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* *
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\*===========================================================================*/
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//=============================================================================
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//
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// CLASS ExtendedMarchingCubesT
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//
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//=============================================================================
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#ifndef ISOEX_EXTMARCHINGCUBEST_HH
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#define ISOEX_EXTMARCHINGCUBEST_HH
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//== INCLUDES =================================================================
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#include <IsoEx/Extractors/Edge2VertexMapT.hh>
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#include <IsoEx/Grids/Grid.hh>
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#include <vector>
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//== NAMESPACES ===============================================================
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namespace IsoEx {
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//== CLASS DEFINITION =========================================================
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/** \class ExtendedMarchingCubesT ExtendedMarchingCubesT.hh <IsoEx/Extractors/ExtendedMarchingCubesT.hh>
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This class implements the Extended Marching Cubes of Kobbelt et al,
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Siggraph 2001.
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The 0-level iso-surface is extracted in the constructor. Use it through
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the convenience function
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<b>IsoEx::extended_marching_cubes()</b>.
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\ingroup extractors
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*/
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template <class Mesh, class Grid>
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class ExtendedMarchingCubesT
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{
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public:
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ExtendedMarchingCubesT(const Grid& _grid,
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Mesh& _mesh,
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double _iso_value,
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double _feature_angle);
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private:
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typedef typename Grid::PointIdx PointIdx;
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typedef typename Grid::CubeIdx CubeIdx;
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typedef typename Grid::CubeIterator CubeIterator;
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typedef typename Mesh::VertexHandle VertexHandle;
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typedef std::vector<VertexHandle> VertexHandleVector;
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void process_cube(CubeIdx _idx, double _iso_value);
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VertexHandle add_vertex(PointIdx _p0, PointIdx _p1, double _iso_value);
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VertexHandle find_feature(const VertexHandleVector& _vhandles);
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void flip_edges();
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const Grid& grid_;
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Mesh& mesh_;
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float feature_angle_;
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unsigned int n_edges_, n_corners_;
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// maps an edge to the sample vertex generated on it
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Edge2VertexMapT<PointIdx, VertexHandle> edge2vertex_;
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};
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//-----------------------------------------------------------------------------
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/** Convenience wrapper for the Extended Marching Cubes algorithm.
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\see IsoEx::ExtendedMarchingCubesT
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\ingroup extractors
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*/
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template <class Mesh, class Grid>
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void extended_marching_cubes(const Grid& _grid,
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Mesh& _mesh,
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double _iso_value,
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double _feature_angle)
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{
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ExtendedMarchingCubesT<Mesh,Grid> emc(_grid, _mesh, _iso_value, _feature_angle);
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}
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//=============================================================================
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} // namespace IsoEx
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//=============================================================================
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#if defined(INCLUDE_TEMPLATES) && !defined(ISOEX_EXTMARCHINGCUBEST_C)
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#define ISOEX_EXTMARCHINGCUBEST_TEMPLATES
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#include "ExtendedMarchingCubesT.cc"
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#endif
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//=============================================================================
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#endif // ISOEX_EXTMARCHINGCUBEST_HH defined
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//=============================================================================
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