diff --git a/Apps/Tuto/tuto5.h b/Apps/Tuto/tuto5.h
index 49fd306a9c35031db9e0288d42a6bbb2c2331fb7..dd346ee5034e522ca059fbe4a782cfdcfff5fc97 100644
--- a/Apps/Tuto/tuto5.h
+++ b/Apps/Tuto/tuto5.h
@@ -27,7 +27,7 @@
 
 #include <iostream>
 
-#define WITH_GMAP 0
+//#define WITH_GMAP 0
 
 #include "Topology/generic/parameters.h"
 #ifdef WITH_GMAP
diff --git a/include/Algo/ImplicitHierarchicalMesh/subdivision3.hpp b/include/Algo/ImplicitHierarchicalMesh/subdivision3.hpp
index 55522e5ddd1cb626588f1cf3d81f4d38cc4e54dd..4963c244f01f01beaaa87398262bf184965d32c0 100644
--- a/include/Algo/ImplicitHierarchicalMesh/subdivision3.hpp
+++ b/include/Algo/ImplicitHierarchicalMesh/subdivision3.hpp
@@ -450,67 +450,70 @@ Dart subdivideVolumeClassic2(typename PFP::MAP& map, Dart d, typename PFP::TVEC3
 
 		map.splitVolume(v) ;
 
-//		Dart old = map.phi2(map.phi1(dit));
-//		Dart dd = map.phi1(map.phi1(old)) ;
-//		map.splitFace(old,dd) ;
-//
-//		unsigned int idface = map.getNewFaceId();
-//		map.setFaceId(dd,idface, FACE);
-//
-//		Dart ne = map.phi1(map.phi1(old)) ;
-//
-//		map.cutEdge(ne);
-//		centralDart = map.phi1(ne);
-//		newEdges.push_back(ne);
-//		newEdges.push_back(map.phi1(ne));
-//
-//		unsigned int id = map.getNewEdgeId() ;
-//		map.setEdgeId(ne, id, EDGE) ;
-//
-//		Dart stop = map.phi2(map.phi1(ne));
-//		ne = map.phi2(ne);
-//		do
-//		{
-//			dd = map.phi1(map.phi1(map.phi1(ne)));
-//
-//			map.splitFace(ne, dd) ;
-//			unsigned int idface = map.getNewFaceId();
-//			map.setFaceId(dd,idface, FACE);
-//
-//			newEdges.push_back(map.phi1(dd));
-//
-//			ne = map.phi2(map.phi_1(ne));
-//			dd = map.phi1(map.phi1(dd));
-//		}
-//		while(dd != stop);
+		Dart old = map.phi2(map.phi1(dit));
+		Dart dd = map.phi1(map.phi1(old)) ;
+		map.splitFace(old,dd) ;
+
+		unsigned int idface = map.getNewFaceId();
+		map.setFaceId(dd,idface, FACE);
+
+		Dart ne = map.phi1(map.phi1(old)) ;
+
+		map.cutEdge(ne);
+		centralDart = map.phi1(ne);
+		newEdges.push_back(ne);
+		newEdges.push_back(map.phi1(ne));
+		position[centralDart] = volCenter;
+
+		unsigned int id = map.getNewEdgeId() ;
+		map.setEdgeId(ne, id, EDGE) ;
+
+		Dart stop = map.phi2(map.phi1(ne));
+		ne = map.phi2(ne);
+		do
+		{
+			dd = map.phi1(map.phi1(map.phi1(ne)));
+
+			map.splitFace(ne, dd) ;
+			unsigned int idface = map.getNewFaceId();
+			map.setFaceId(dd,idface, FACE);
+
+			newEdges.push_back(map.phi1(dd));
+
+			ne = map.phi2(map.phi_1(ne));
+			dd = map.phi1(map.phi1(dd));
+		}
+		while(dd != stop);
 
 	}
 
-//	map.deleteVolume(map.phi3(map.phi2(map.phi1(traV.begin()))));
-//
+
 //	//Third step : 3-sew internal faces
 //	for (std::vector<std::pair<Dart,Dart> >::iterator it = subdividedfaces.begin(); it != subdividedfaces.end(); ++it)
 //	{
 //		Dart f1 = (*it).first;
 //		Dart f2 = (*it).second;
 //
+//
 //		if(map.isBoundaryFace(map.phi2(f1)) && map.isBoundaryFace(map.phi2(f2)))
 //		{
+//			std::cout << "boundary" << std::endl;
 //			//id pour toutes les faces interieures
 //			map.sewVolumes(map.phi2(f1), map.phi2(f2));
-//
-//			//Fais a la couture !!!!!
-//			unsigned int idface = map.getNewFaceId();
-//			map.setFaceId(map.phi2(f1),idface, FACE);
+//			break;
+////
+////			//Fais a la couture !!!!!
+////			unsigned int idface = map.getNewFaceId();
+////			map.setFaceId(map.phi2(f1),idface, FACE);
 //		}
-//
-//		//FAIS a la couture !!!!!!!
-//		//id pour toutes les aretes exterieurs des faces quadrangulees
-//		unsigned int idedge = map.getEdgeId(f1);
-//		map.setEdgeId(map.phi2(f1), idedge, DART);
-//		map.setEdgeId( map.phi2(f2), idedge, DART);
+////
+////		//FAIS a la couture !!!!!!!
+////		//id pour toutes les aretes exterieurs des faces quadrangulees
+////		unsigned int idedge = map.getEdgeId(f1);
+////		map.setEdgeId(map.phi2(f1), idedge, DART);
+////		map.setEdgeId( map.phi2(f2), idedge, DART);
 //	}
-//
+
 //	//LA copie de L'id est a gerer avec le sewVolumes normalement !!!!!!
 //	//id pour les aretes interieurs : (i.e. 6 pour un hexa)
 //	DartMarker mne(map);
@@ -523,9 +526,9 @@ Dart subdivideVolumeClassic2(typename PFP::MAP& map, Dart d, typename PFP::TVEC3
 //			mne.markOrbit(EDGE, newEdges[i]);
 //		}
 //	}
-//
-//
-//	position[centralDart] = volCenter; //plonger a la fin de la boucle ????
+
+
+	//plonger a la fin de la boucle ????
 
 	map.setCurrentLevel(cur) ;
 
diff --git a/include/Algo/Modelisation/subdivision3.hpp b/include/Algo/Modelisation/subdivision3.hpp
index 4c34c52deeb83083724ca7bfab9d78fe1d4ca782..97e03c612a0cbef2a246543e3c2b8d04137721ae 100644
--- a/include/Algo/Modelisation/subdivision3.hpp
+++ b/include/Algo/Modelisation/subdivision3.hpp
@@ -184,26 +184,38 @@ void catmullClarkVol(typename PFP::MAP& map, EMBV& attributs, const FunctorSelec
 		std::vector<Dart> v;
 		do
 		{
-			Dart dN = map.phi1(map.phi2(d));
+			v.push_back(map.phi1(map.phi1(d)));
+			v.push_back(map.phi1(d));
 
-	 		Dart dRing = map.phi1(d);
-
-	 		if(map.phi2(dRing)!=dRing)
-	 		{
-	 			toSew.insert(std::pair<Dart,Dart>(dRing,map.phi2(dRing)));
-	 			v.push_back(dRing);
-	 		}
-
-	 		dRing = map.phi1(dRing);
-
-	 		if(map.phi2(dRing)!=dRing)
-	 		{
-	 			toSew.insert(std::pair<Dart,Dart>(dRing,map.phi2(dRing)));
-	 			v.push_back(dRing);
-	 		}
+			d = map.phi2(map.phi_1(d));
+		}
+		while(d != *it);
 
-			d = dN;
-		} while (d != *it);
+//		do
+//		{
+//			Dart dN = map.phi1(map.phi2(d));
+//
+//	 		Dart dRing = map.phi1(d);
+//
+//	 		if(map.phi2(dRing)!=dRing)
+//	 		{
+//	 			toSew.insert(std::pair<Dart,Dart>(dRing,map.phi2(dRing)));
+//	 			v.push_back(dRing);
+//	 		}
+//
+//	 		dRing = map.phi1(dRing);
+//
+//	 		if(map.phi2(dRing)!=dRing)
+//	 		{
+//	 			toSew.insert(std::pair<Dart,Dart>(dRing,map.phi2(dRing)));
+//	 			v.push_back(dRing);
+//	 		}
+//
+//			d = dN;
+//		} while (d != *it);
+
+		map.splitCC(v);
+		map.fillHole(v.front());
 
 //		//close the generated hole and create the central vertex
 //		//unsigned int degree = map.closeHole(map.phi1(d));
@@ -211,12 +223,12 @@ void catmullClarkVol(typename PFP::MAP& map, EMBV& attributs, const FunctorSelec
 		//TODO : pb de face en trop avec splitVolume
 		//map.splitVolume(v);
 
-		Dart e = v.front();
-		for(std::vector<Dart>::iterator it = v.begin() ; it != v.end() ; ++it)
-			if(map.Map2::isBoundaryEdge(*it))
-				map.unsewFaces(*it);
+		//
 
-		map.fillHole(e) ;
+//		Dart e = v.front();
+//		for(std::vector<Dart>::iterator it = v.begin() ; it != v.end() ; ++it)
+//			if(map.Map2::isBoundaryEdge(*it))
+//				map.unsewFaces(*it);
 
 //		Dart dd = map.phi1(map.phi2(map.phi1(d)));
 //		map.splitFace(map.phi_1(dd),map.phi1(dd));
diff --git a/include/Topology/gmap/gmap2.h b/include/Topology/gmap/gmap2.h
index f1341c717a267171a422f53b0975e63f0865e44b..d872c7d5a49a4777137797b6172c158ce135d5f9 100644
--- a/include/Topology/gmap/gmap2.h
+++ b/include/Topology/gmap/gmap2.h
@@ -252,6 +252,13 @@ public:
 	 *  @return true if the merge has been executed, false otherwise
 	 */
 	virtual bool mergeVolumes(Dart d, Dart e);
+
+	//!
+	/*!
+	 *
+	 */
+	virtual void splitCC(std::vector<Dart>& vd);
+
 	//@}
 
 	/*! @name Topological Queries
diff --git a/include/Topology/map/map2.h b/include/Topology/map/map2.h
index 558826247607ff08f5433f9a8d251dd6061aba25..e3b6476cb9a12a8804160703944f7775a7a88131 100644
--- a/include/Topology/map/map2.h
+++ b/include/Topology/map/map2.h
@@ -274,6 +274,13 @@ public:
 	 *  @return true if the merge has been executed, false otherwise
 	 */
 	virtual bool mergeVolumes(Dart d, Dart e);
+
+	//!
+	/*!
+	 *
+	 */
+	virtual void splitCC(std::vector<Dart>& vd);
+
 	//@}
 
 	/*! @name Topological Queries
diff --git a/src/Topology/gmap/gmap2.cpp b/src/Topology/gmap/gmap2.cpp
index 63ce6e76d55c360b91632d56c940726856e7cf1d..4384349b3540dc164f616e244e2ac929536e478f 100644
--- a/src/Topology/gmap/gmap2.cpp
+++ b/src/Topology/gmap/gmap2.cpp
@@ -584,6 +584,11 @@ bool GMap2::mergeVolumes(Dart d, Dart e)
 	return true ;
 }
 
+void GMap2::splitCC(std::vector<Dart>& vd)
+{
+	//assert(checkSimpleOrientedPath(vd)) ;
+}
+
 /*! @name Topological Queries
  *  Return or set various topological information
  *************************************************************************/
diff --git a/src/Topology/map/map2.cpp b/src/Topology/map/map2.cpp
index 6d1ce182b3836298edd6465392182123a2e2ac13..3270bb924d4266dd4934e5a08bd5b93f9db12993 100644
--- a/src/Topology/map/map2.cpp
+++ b/src/Topology/map/map2.cpp
@@ -359,7 +359,7 @@ void Map2::sewFaces(Dart d, Dart e, bool withBoundary)
 
 void Map2::unsewFaces(Dart d)
 {
-	assert(!isBoundaryEdge(d)) ;
+	assert(!Map2::isBoundaryEdge(d)) ;
 
 	Dart dd = phi2(d) ;
 
@@ -407,7 +407,7 @@ bool Map2::collapseDegeneratedFace(Dart d)
 
 void Map2::splitFace(Dart d, Dart e)
 {
-	assert(d != e && sameFace(d, e)) ;
+	assert(d != e && Map2::sameFace(d, e)) ;
 	Dart dd = Map1::cutEdge(phi_1(d)) ;
 	Dart ee = Map1::cutEdge(phi_1(e)) ;
 	Map1::splitCycle(dd, ee) ;
@@ -515,6 +515,14 @@ bool Map2::mergeVolumes(Dart d, Dart e)
 	return true ;
 }
 
+void Map2::splitCC(std::vector<Dart>& vd)
+{
+	//assert(checkSimpleOrientedPath(vd)) ;
+
+	for(std::vector<Dart>::iterator it = vd.begin() ; it != vd.end() ; ++it)
+		Map2::unsewFaces(*it);
+}
+
 /*! @name Topological Queries
  *  Return or set various topological information
  *************************************************************************/
diff --git a/src/Topology/map/map3.cpp b/src/Topology/map/map3.cpp
index 0ce90de57a943fb85e402fb3c5ee4d41193ea34e..55427c94bb76db8d32e45508a59c85ce695afc3a 100644
--- a/src/Topology/map/map3.cpp
+++ b/src/Topology/map/map3.cpp
@@ -490,11 +490,25 @@ void Map3::splitVolume(std::vector<Dart>& vd)
 
 	Map2::fillHole(e) ;
 
+	Dart b = Map1::newBoundaryCycle(vd.size());
+
+	Dart fit1 = phi2(e) ;
+	Dart fit2 = b ;
+	do
+	{
+		phi3sew(fit1, fit2) ;
+
+		fit1 = phi1(fit1) ;
+		fit2 = phi_1(fit2) ;
+	} while(fit2 != b) ;
+
+
+
 //	if(isBoundaryMarked(e2))
-		Map2::fillHole(e2) ;
+//		Map2::fillHole(e2) ;
 
 	//sew the two connected components
-	Map3::sewVolumes(phi2(e), phi2(e2), false);
+//	Map3::sewVolumes(phi2(e), phi2(e2), false);
 }
 
 /*! @name Topological Queries