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 00046 //============================================================================= 00047 // 00048 // CLASS SQRT3T 00049 // 00050 //============================================================================= 00051 00052 #ifndef OPENMESH_SUBDIVIDER_UNIFORM_COMPOSITESQRT3T_HH 00053 #define OPENMESH_SUBDIVIDER_UNIFORM_COMPOSITESQRT3T_HH 00054 00055 00056 //== INCLUDES ================================================================= 00057 00058 #include "Composite/CompositeT.hh" 00059 #include "Composite/CompositeTraits.hh" 00060 00061 00062 //== NAMESPACE ================================================================ 00063 00064 namespace OpenMesh { // BEGIN_NS_OPENMESH 00065 namespace Subdivider { // BEGIN_NS_DECIMATER 00066 namespace Uniform { // BEGIN_NS_UNIFORM 00067 00068 00069 //== CLASS DEFINITION ========================================================= 00070 00073 template <typename MeshType, typename RealType=float> 00074 class CompositeSqrt3T : public CompositeT<MeshType, RealType> 00075 { 00076 public: 00077 00078 typedef CompositeT<MeshType, RealType> Inherited; 00079 00080 public: 00081 00082 CompositeSqrt3T() : Inherited() {}; 00083 CompositeSqrt3T(MeshType& _mesh) : Inherited(_mesh) {}; 00084 ~CompositeSqrt3T() {} 00085 00086 public: 00087 00088 const char *name() const { return "Uniform Composite Sqrt3"; } 00089 00090 protected: // inherited interface 00091 00092 void apply_rules(void) 00093 { 00094 Inherited::Tvv3(); 00095 Inherited::VF(); 00096 Inherited::FF(); 00097 Inherited::FVc(coeffs_); 00098 } 00099 00100 protected: 00101 00102 typedef typename Inherited::Coeff Coeff; 00103 00107 struct FVCoeff : public Coeff 00108 { 00109 FVCoeff() : Coeff() { init(50); } 00110 00111 void init(size_t _max_valence) 00112 { 00113 weights_.resize(_max_valence); 00114 std::generate(weights_.begin(), 00115 weights_.end(), compute_weight() ); 00116 } 00117 00118 double operator()(size_t _valence) { return weights_[_valence]; } 00119 00122 struct compute_weight 00123 { 00124 compute_weight() : val_(0) { } 00125 00126 double operator()(void) // sqrt(3) weights for non-boundary vertices 00127 { 00128 return 2.0/3.0 * (cos(2.0*M_PI/val_++)+1.0); 00129 } 00130 size_t val_; 00131 }; 00132 00133 std::vector<double> weights_; 00134 00135 } coeffs_; 00136 00137 }; 00138 00139 00140 //============================================================================= 00141 } // END_NS_UNIFORM 00142 } // END_NS_SUBDIVIDER 00143 } // END_NS_OPENMESH 00144 //============================================================================= 00145 #endif // OPENMESH_SUBDIVIDER_UNIFORM_COMPOSITESQRT3T_HH defined 00146 //=============================================================================