ajout fichiers pliant remeshing

include/Algo/Remeshing/pliant.h

+/*******************************************************************************
+* CGoGN: Combinatorial and Geometric modeling with Generic N-dimensional Maps  *
+* version 0.1                                                                  *
+* Copyright (C) 2009, IGG Team, LSIIT, University of Strasbourg                *
+*                                                                              *
+* This library is free software; you can redistribute it and/or modify it      *
+* under the terms of the GNU Lesser General Public License as published by the *
+* Free Software Foundation; either version 2.1 of the License, or (at your     *
+* option) any later version.                                                   *
+*                                                                              *
+* This library is distributed in the hope that it will be useful, but WITHOUT  *
+* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or        *
+* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License  *
+* for more details.                                                            *
+*                                                                              *
+* You should have received a copy of the GNU Lesser General Public License     *
+* along with this library; if not, write to the Free Software Foundation,      *
+* Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.           *
+*                                                                              *
+* Web site: https://iggservis.u-strasbg.fr/CGoGN/                              *
+* Contact information: cgogn@unistra.fr                                        *
+*                                                                              *
+*******************************************************************************/
+
+namespace CGoGN
+{
+
+namespace Algo
+{
+
+namespace Remeshing
+{
+
+template <typename PFP>
+void pliantRemeshing(typename PFP::MAP& map, typename PFP::TVEC3& position) ;
+
+} // namespace Remeshing
+
+} // namespace Algo
+
+} // namespace CGoGN
+
+#include "Algo/Remeshing/pliant.hpp"

include/Algo/Remeshing/pliant.hpp

+/*******************************************************************************
+* CGoGN: Combinatorial and Geometric modeling with Generic N-dimensional Maps  *
+* version 0.1                                                                  *
+* Copyright (C) 2009, IGG Team, LSIIT, University of Strasbourg                *
+*                                                                              *
+* This library is free software; you can redistribute it and/or modify it      *
+* under the terms of the GNU Lesser General Public License as published by the *
+* Free Software Foundation; either version 2.1 of the License, or (at your     *
+* option) any later version.                                                   *
+*                                                                              *
+* This library is distributed in the hope that it will be useful, but WITHOUT  *
+* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or        *
+* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License  *
+* for more details.                                                            *
+*                                                                              *
+* You should have received a copy of the GNU Lesser General Public License     *
+* along with this library; if not, write to the Free Software Foundation,      *
+* Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.           *
+*                                                                              *
+* Web site: https://iggservis.u-strasbg.fr/CGoGN/                              *
+* Contact information: cgogn@unistra.fr                                        *
+*                                                                              *
+*******************************************************************************/
+
+#include "Algo/Geometry/basic.h"
+
+namespace CGoGN
+{
+
+namespace Algo
+{
+
+namespace Remeshing
+{
+
+template <typename PFP>
+void pliantRemeshing(typename PFP::MAP& map, typename PFP::TVEC3& position)
+{
+	typedef typename PFP::VEC3 VEC3 ;
+	typedef typename PFP::REAL REAL ;
+
+	DartMarker m(map) ;
+
+	REAL meanEdgeLength = 0 ;
+	unsigned int nbEdges = 0 ;
+	for(Dart d = map.begin(); d != map.end(); map.next(d))
+	{
+		if(!m.isMarked(d))
+		{
+			m.markOrbit(EDGE_ORBIT, d) ;
+			meanEdgeLength += Algo::Geometry::edgeLength<PFP>(map, d, position) ;
+			++nbEdges ;
+		}
+	}
+	meanEdgeLength /= REAL(nbEdges) ;
+
+	REAL edgeLengthInf = REAL(4) / REAL(5) * meanEdgeLength ;
+	REAL edgeLengthSup = REAL(4) / REAL(3) * meanEdgeLength ;
+
+	for(Dart d = map.begin(); d != map.end(); map.next(d))
+	{
+		if(m.isMarked(d))
+		{
+			m.unmarkOrbit(EDGE_ORBIT, d) ;
+			REAL length = Algo::Geometry::edgeLength<PFP>(map, d, position) ;
+			if(length > edgeLengthSup)
+			{
+				Dart dd = map.phi2(d) ;
+				VEC3 p = REAL(0.5) * (position[d] + position[dd]) ;
+				map.cutEdge(d) ;
+				position[map.phi1(d)] = p ;
+				map.splitFace(map.phi1(d), map.phi_1(d)) ;
+				map.splitFace(map.phi1(dd), map.phi_1(dd)) ;
+			}
+		}
+	}
+
+	for(Dart d = map.begin(); d != map.end(); map.next(d))
+	{
+		if(!m.isMarked(d))
+		{
+			m.markOrbit(EDGE_ORBIT, d) ;
+			REAL length = Algo::Geometry::edgeLength<PFP>(map, d, position) ;
+			if(length < edgeLengthInf)
+			{
+				bool collapse = true ;
+				Dart dd = map.phi2(d) ;
+				VEC3 p = position[dd] ;
+				Dart vit = map.alpha1(d) ;
+				do
+				{
+					VEC3 vec = position[dd] - position[map.phi1(vit)] ;
+					if(vec.norm() > edgeLengthSup)
+						collapse = false ;
+					vit = map.alpha1(vit) ;
+				} while(vit != d && collapse) ;
+				if(collapse)
+				{
+					Dart v = map.collapseEdge(d) ;
+					position[v] = p ;
+				}
+			}
+		}
+	}
+}
+
+} // namespace Remeshing
+
+} // namespace Algo
+
+} // namespace CGoGN