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 00043 //============================================================================= 00044 // 00045 // CLASS ModQuadricT 00046 // 00047 //============================================================================= 00048 00049 #ifndef OSG_MODQUADRIC_HH 00050 #define OSG_MODQUADRIC_HH 00051 00052 00053 //== INCLUDES ================================================================= 00054 00055 #include <float.h> 00056 #include <OpenMesh/Tools/Decimater/ModBaseT.hh> 00057 #include <OpenMesh/Core/Utils/Property.hh> 00058 #include <OpenMesh/Core/Utils/vector_cast.hh> 00059 #include <OpenMesh/Core/Geometry/QuadricT.hh> 00060 00061 00062 //== NAMESPACE ================================================================ 00063 00064 namespace OpenMesh { 00065 namespace Decimater { 00066 00067 00068 //== CLASS DEFINITION ========================================================= 00069 00070 00075 template <class DecimaterType> 00076 class ModQuadricT : public ModBaseT<DecimaterType> 00077 { 00078 public: 00079 00080 // Defines the types Self, Handle, Base, Mesh, and CollapseInfo 00081 // and the memberfunction name() 00082 DECIMATING_MODULE( ModQuadricT, DecimaterType, Quadric ); 00083 00084 public: 00085 00089 ModQuadricT( DecimaterType &_dec ) 00090 : Base(_dec, false) 00091 { 00092 unset_max_err(); 00093 Base::mesh().add_property( quadrics_ ); 00094 } 00095 00096 00098 virtual ~ModQuadricT() 00099 { 00100 Base::mesh().remove_property(quadrics_); 00101 } 00102 00103 00104 public: // inherited 00105 00107 virtual void initialize(void); 00108 00114 virtual float collapse_priority(const CollapseInfo& _ci) 00115 { 00116 using namespace OpenMesh; 00117 00118 typedef Geometry::QuadricT<double> Q; 00119 00120 Q q = Base::mesh().property(quadrics_, _ci.v0); 00121 q += Base::mesh().property(quadrics_, _ci.v1); 00122 00123 double err = q(_ci.p1); 00124 00125 //min_ = std::min(err, min_); 00126 //max_ = std::max(err, max_); 00127 00128 //double err = q( p ); 00129 00130 return float( (err < max_err_) ? err : float( Base::ILLEGAL_COLLAPSE ) ); 00131 } 00132 00133 00135 virtual void postprocess_collapse(const CollapseInfo& _ci) 00136 { 00137 Base::mesh().property(quadrics_, _ci.v1) += 00138 Base::mesh().property(quadrics_, _ci.v0); 00139 } 00140 00141 00142 00143 public: // specific methods 00144 00151 void set_max_err(double _err, bool _binary=true) 00152 { 00153 max_err_ = _err; 00154 Base::set_binary(_binary); 00155 } 00156 00159 void unset_max_err(void) 00160 { 00161 max_err_ = DBL_MAX; 00162 Base::set_binary(false); 00163 } 00164 00166 double max_err() const { return max_err_; } 00167 00168 00169 private: 00170 00171 // maximum quadric error 00172 double max_err_; 00173 00174 // this vertex property stores a quadric for each vertex 00175 VPropHandleT< Geometry::QuadricT<double> > quadrics_; 00176 }; 00177 00178 //============================================================================= 00179 } // END_NS_DECIMATER 00180 } // END_NS_OPENMESH 00181 //============================================================================= 00182 #if defined(OM_INCLUDE_TEMPLATES) && !defined(OPENMESH_DECIMATER_MODQUADRIC_CC) 00183 #define OSG_MODQUADRIC_TEMPLATES 00184 #include "ModQuadricT.cc" 00185 #endif 00186 //============================================================================= 00187 #endif // OSG_MODQUADRIC_HH defined 00188 //============================================================================= 00189