OpenMesh
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00001 /*===========================================================================*\ 00002 * * 00003 * OpenMesh * 00004 * Copyright (C) 2001-2011 by Computer Graphics Group, RWTH Aachen * 00005 * www.openmesh.org * 00006 * * 00007 *---------------------------------------------------------------------------* 00008 * This file is part of OpenMesh. * 00009 * * 00010 * OpenMesh is free software: you can redistribute it and/or modify * 00011 * it under the terms of the GNU Lesser General Public License as * 00012 * published by the Free Software Foundation, either version 3 of * 00013 * the License, or (at your option) any later version with the * 00014 * following exceptions: * 00015 * * 00016 * If other files instantiate templates or use macros * 00017 * or inline functions from this file, or you compile this file and * 00018 * link it with other files to produce an executable, this file does * 00019 * not by itself cause the resulting executable to be covered by the * 00020 * GNU Lesser General Public License. This exception does not however * 00021 * invalidate any other reasons why the executable file might be * 00022 * covered by the GNU Lesser General Public License. * 00023 * * 00024 * OpenMesh is distributed in the hope that it will be useful, * 00025 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 00026 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * 00027 * GNU Lesser General Public License for more details. * 00028 * * 00029 * You should have received a copy of the GNU LesserGeneral Public * 00030 * License along with OpenMesh. If not, * 00031 * see <http://www.gnu.org/licenses/>. * 00032 * * 00033 \*===========================================================================*/ 00034 00035 /*===========================================================================*\ 00036 * * 00037 * $Revision: 362 $ * 00038 * $Date: 2011-01-26 10:21:12 +0100 (Mi, 26 Jan 2011) $ * 00039 * * 00040 \*===========================================================================*/ 00041 00042 #ifndef SMOOTH_MESH_HH 00043 #define SMOOTH_MESH_HH 00044 00045 //== INCLUDES ================================================================= 00046 00047 #include <OpenMesh/Core/Utils/Property.hh> 00048 00049 //== NAMESPACE ================================================================ 00050 00051 namespace OpenMesh { //BEGIN_NS_OPENMESH 00052 00053 template <class _Mesh, class _PropertyHandle> 00054 void smooth_mesh_property(unsigned int _n_iters, _Mesh& _m, _PropertyHandle _pph) 00055 { 00056 typedef typename _PropertyHandle::Value Value; 00057 00058 std::vector<Value> temp_values(_m.n_vertices()); 00059 00060 for (unsigned int i=0; i < _n_iters; ++i) 00061 { 00062 for ( typename _Mesh::ConstVertexIter cv_it = _m.vertices_begin(); 00063 cv_it != _m.vertices_end(); ++cv_it) 00064 { 00065 unsigned int valence = 0; 00066 00067 Value& temp_value = temp_values[cv_it.handle().idx()]; 00068 00069 temp_value.vectorize(0); 00070 00071 for ( typename _Mesh::ConstVertexVertexIter cvv_it = _m.cvv_iter(cv_it); 00072 cvv_it; ++cvv_it) 00073 { 00074 temp_value += _m.property(_pph,cvv_it); 00075 ++valence; 00076 } 00077 if (valence > 0) 00078 {//guard against isolated vertices 00079 temp_value *= (typename Value::value_type)(1.0 / valence); 00080 } 00081 else 00082 { 00083 temp_value = _m.property(_pph, cv_it); 00084 } 00085 } 00086 00087 for ( typename _Mesh::ConstVertexIter cv_it = _m.vertices_begin(); 00088 cv_it != _m.vertices_end(); ++cv_it) 00089 { 00090 _m.property(_pph,cv_it) = temp_values[cv_it.handle().idx()]; 00091 } 00092 } 00093 } 00094 00095 template <class _Mesh> 00096 void smooth_mesh(_Mesh& _m, uint _n_iters) 00097 { 00098 smooth_mesh_property(_n_iters, _m, _m.points_pph()); 00099 } 00100 00101 };//namespace OpenMesh 00102 00103 #endif//SMOOTH_MESH_HH