diff --git a/Apps/Examples/miniTest.cpp b/Apps/Examples/miniTest.cpp
index 040554f9b656884971caeea0c4eb0fa29702c160..86a754e4ee88f148dfb1b9978d9558ba2d167e21 100644
--- a/Apps/Examples/miniTest.cpp
+++ b/Apps/Examples/miniTest.cpp
@@ -536,11 +536,10 @@ void MyGlutWin::myKeyboard(unsigned char keycode, int x, int y)
 
 		case 'd':
 		{
-			myMap.removeAttribute<PFP::VEC3>(normal) ;
-			myMap.removeAttribute<PFP::VEC3>(laplacian) ;
-
-			AttributeHandler<PFP::VEC3> newPosition = myMap.addAttribute<PFP::VEC3>(FACE_ORBIT, "position") ;
-			Algo::Geometry::computeCentroidFaces<PFP>(myMap, position, newPosition) ;
+			AttributeHandler<PFP::VEC3> positionF = myMap.getAttribute<PFP::VEC3>(FACE_ORBIT, "position") ;
+			if(!positionF.isValid())
+				positionF = myMap.addAttribute<PFP::VEC3>(FACE_ORBIT, "position") ;
+			Algo::Geometry::computeCentroidFaces<PFP>(myMap, position, positionF) ;
 
 			GLint t1 = glutGet(GLUT_ELAPSED_TIME);
 
@@ -550,12 +549,14 @@ void MyGlutWin::myKeyboard(unsigned char keycode, int x, int y)
 			GLfloat seconds = (t2 - t1) / 1000.0f;
 			std::cout << "dual computation: "<< seconds << "sec" << std::endl;
 
-			newPosition = myMap.getAttribute<PFP::VEC3>(FACE_ORBIT, "position") ;
-			myMap.removeAttribute<PFP::VEC3>(newPosition) ;
-
 			position = myMap.getAttribute<PFP::VEC3>(VERTEX_ORBIT, "position") ;
-			normal = myMap.addAttribute<PFP::VEC3>(VERTEX_ORBIT, "normal") ;
-			laplacian = myMap.addAttribute<PFP::VEC3>(VERTEX_ORBIT, "laplacian") ;
+
+			normal = myMap.getAttribute<PFP::VEC3>(VERTEX_ORBIT, "normal") ;
+			if(!normal.isValid())
+				normal = myMap.addAttribute<PFP::VEC3>(VERTEX_ORBIT, "normal") ;
+			laplacian = myMap.getAttribute<PFP::VEC3>(VERTEX_ORBIT, "laplacian") ;
+			if(!laplacian.isValid())
+				laplacian = myMap.addAttribute<PFP::VEC3>(VERTEX_ORBIT, "laplacian") ;
 
 			t1 = glutGet(GLUT_ELAPSED_TIME);
 			updateVBOprimitives(Algo::Render::VBO::TRIANGLES | Algo::Render::VBO::LINES | Algo::Render::VBO::POINTS) ;
diff --git a/include/Algo/ImplicitHierarchicalMesh/ihm.hpp b/include/Algo/ImplicitHierarchicalMesh/ihm.hpp
index 215709f95bc2b6c150135a2b396e8bfee58e63a2..4f8e26ef557116a197fc6661cbfa62329dd64d56 100644
--- a/include/Algo/ImplicitHierarchicalMesh/ihm.hpp
+++ b/include/Algo/ImplicitHierarchicalMesh/ihm.hpp
@@ -343,7 +343,7 @@ T& AttributeHandler_IHM<T>::operator[](Dart d)
 	assert(m->m_dartLevel[d] <= m->m_curLevel || !"Access to a dart introduced after current level") ;
 	assert(m->vertexInsertionLevel(d) <= m->m_curLevel || !"Access to the embedding of a vertex inserted after current level") ;
 
-	unsigned int orbit = this->m_orbit ;
+	unsigned int orbit = this->getOrbit() ;
 	unsigned int nbSteps = m->m_curLevel - m->vertexInsertionLevel(d) ;
 	unsigned int index = m->getEmbedding(d, orbit) ;
 
@@ -380,7 +380,7 @@ const T& AttributeHandler_IHM<T>::operator[](Dart d) const
 	assert(m->m_dartLevel[d] <= m->m_curLevel || !"Access to a dart introduced after current level") ;
 	assert(m->vertexInsertionLevel(d) <= m->m_curLevel || !"Access to the embedding of a vertex inserted after current level") ;
 
-	unsigned int orbit = this->m_orbit ;
+	unsigned int orbit = this->getOrbit() ;
 	unsigned int nbSteps = m->m_curLevel - m->vertexInsertionLevel(d) ;
 	unsigned int index = m->getEmbedding(d, orbit) ;
 
diff --git a/include/Algo/Modelisation/subdivision.h b/include/Algo/Modelisation/subdivision.h
index 0e5f8b2c3813d3dc1e41b27b7137e51c837037a4..00f6ca518e129108c6af2a269bbd163232c8791a 100644
--- a/include/Algo/Modelisation/subdivision.h
+++ b/include/Algo/Modelisation/subdivision.h
@@ -91,6 +91,12 @@ void LoopSubdivision(typename PFP::MAP& map, EMBV& attributs, const FunctorSelec
 template <typename PFP>
 void LoopSubdivision(typename PFP::MAP& map, typename PFP::TVEC3& position, const FunctorSelect& selected = SelectorTrue()) ;
 
+/**
+ * Reverse the orientation of the map
+ */
+template <typename PFP>
+void reverseOrientation(typename PFP::MAP& map) ;
+
 /**
  * Dual mesh computation
  */
diff --git a/include/Algo/Modelisation/subdivision.hpp b/include/Algo/Modelisation/subdivision.hpp
index 2a2fa4aef22c3d4519516d4244ef0638fb6fb8fc..a209f355cc69238be82478993904751b74072302 100644
--- a/include/Algo/Modelisation/subdivision.hpp
+++ b/include/Algo/Modelisation/subdivision.hpp
@@ -434,6 +434,24 @@ void LoopSubdivision(typename PFP::MAP& map, typename PFP::TVEC3& position, cons
 	LoopSubdivision<PFP, typename PFP::TVEC3, typename PFP::VEC3>(map, position, selected) ;
 }
 
+template <typename PFP>
+void reverseOrientation(typename PFP::MAP& map)
+{
+	AttributeHandler<unsigned int> emb0(&map, map.getEmbeddingAttributeVector(VERTEX_ORBIT)) ;
+	if(emb0.isValid())
+	{
+		AttributeHandler<unsigned int> new_emb0 = map.template addAttribute<unsigned int>(DART_ORBIT, "new_EMB_0") ;
+		for(Dart d = map.begin(); d != map.end(); map.next(d))
+			new_emb0[d] = emb0[map.phi1(d)] ;
+		map.template swapAttributes<unsigned int>(emb0, new_emb0) ;
+		map.template removeAttribute<unsigned int>(new_emb0) ;
+	}
+
+	AttributeHandler<Dart> phi1 = map.template getAttribute<Dart>(DART_ORBIT, "phi1") ;
+	AttributeHandler<Dart> phi_1 = map.template getAttribute<Dart>(DART_ORBIT, "phi_1") ;
+	map.template swapAttributes<Dart>(phi1, phi_1) ;
+}
+
 template <typename PFP>
 void computeDual(typename PFP::MAP& map, const FunctorSelect& selected)
 {
@@ -456,12 +474,14 @@ void computeDual(typename PFP::MAP& map, const FunctorSelect& selected)
 	map.template removeAttribute<Dart>(new_phi_1) ;
 
 	map.swapEmbeddingContainers(VERTEX_ORBIT, FACE_ORBIT) ;
+
+	reverseOrientation<PFP>(map) ;
 }
 
 template <typename PFP>
 void Sqrt3Subdivision(typename PFP::MAP& map, typename PFP::TVEC3& position, const FunctorSelect& selected)
 {
-//	computeDual<PFP>(map, selected);
+	computeDual<PFP>(map, selected);
 	trianguleFaces<PFP>(map, position, selected);
 }
 
diff --git a/include/Container/attributeContainer.hpp b/include/Container/attributeContainer.hpp
index c19bde2221911899d354fa6f719fee139fb78b4a..3e2424c11ab3da1f178dff0276ced9a76e4f428a 100644
--- a/include/Container/attributeContainer.hpp
+++ b/include/Container/attributeContainer.hpp
@@ -292,8 +292,10 @@ AttributeMultiVector<T>* AttributeContainer::getDataVector(const std::string& at
 inline AttributeMultiVectorGen* AttributeContainer::getVirtualDataVector(const std::string& attribName)
 {
 	unsigned int index = getAttributeIndex(attribName) ;
-	assert(index != UNKNOWN) ;
-	return m_tableAttribs[index];
+	if(index == UNKNOWN)
+		return NULL ;
+	else
+		return m_tableAttribs[index];
 }
 
 template <typename T>
diff --git a/include/Topology/generic/attribmap.hpp b/include/Topology/generic/attribmap.hpp
index db04634fb59443144de857453c69a973580144ae..b7fdd788d78e6ed5afefd1d083688a5dea1f096c 100644
--- a/include/Topology/generic/attribmap.hpp
+++ b/include/Topology/generic/attribmap.hpp
@@ -44,7 +44,6 @@ inline bool AttribMap::removeAttribute(AttributeHandler<T>& attr)
 template <typename T>
 inline AttributeHandler<T> AttribMap::getAttribute(unsigned int orbit, const std::string& nameAttr)
 {
-	assert(isOrbitEmbedded(orbit) || !"Invalid parameter: orbit not embedded");
 	AttributeMultiVector<T>* amv = m_attribs[orbit].getDataVector<T>(nameAttr) ;
 	return AttributeHandler<T>(this, amv) ;
 }
@@ -77,7 +76,6 @@ inline bool AttribMap::copyAttribute(AttributeHandler<T>& dst, AttributeHandler<
 
 inline unsigned int AttribMap::getNbCells(unsigned int orbit)
 {
-	assert(isOrbitEmbedded(orbit) || !"Invalid parameter: orbit not embedded");
 	return this->m_attribs[orbit].size() ;
 }
 
@@ -88,7 +86,6 @@ inline unsigned int AttribMap::getNbCells(unsigned int orbit)
 inline AttributeMultiVector<Dart>* AttribMap::addRelation(const std::string& name)
 {
 	AttributeContainer& cont = m_attribs[DART_ORBIT] ;
-
 	AttributeMultiVector<Dart>* amv = cont.addAttribute<Dart>(name) ;
 
 	// set new relation to fix point for all the darts of the map
diff --git a/include/Topology/generic/attributeHandler.h b/include/Topology/generic/attributeHandler.h
index 7673a9a16989bef9c21df29be54117cacaf49056..1d7f59e0ffb3330ab26d0f79c56a6710f42f3701 100644
--- a/include/Topology/generic/attributeHandler.h
+++ b/include/Topology/generic/attributeHandler.h
@@ -43,8 +43,6 @@ namespace CGoGN
 template <typename T>
 class AttributeHandler
 {
-	friend class AttribMap ;
-
 protected:
 	// we need the map to use dart as index
 	GenericMap* m_map;
@@ -52,19 +50,17 @@ protected:
 	// access to the data
 	AttributeMultiVector<T>* m_attrib;
 
-protected:
+public:
+	typedef T DATA_TYPE ;
+
 	/**
 	 * Constructor
 	 * @param m the map which belong attribute
-	 * @param orbit orbit of attribute
-	 * @param orbit index of attribute
+	 * @param amv a pointer to the AttributeMultiVector
 	 */
 	AttributeHandler(GenericMap* m, AttributeMultiVector<T>* amv) ;
 
-public:
-	typedef T DATA_TYPE ;
-
-	AttributeHandler() : m_map(NULL), m_attrib(NULL) {}
+	AttributeHandler() ;
 
 	/**
 	 * Copy constructor
diff --git a/include/Topology/generic/attributeHandler.hpp b/include/Topology/generic/attributeHandler.hpp
index f659befff568483e595468934057a491a0bb7d3c..db1139f2ff004723f306d0a9834cbaf1c1d31938 100644
--- a/include/Topology/generic/attributeHandler.hpp
+++ b/include/Topology/generic/attributeHandler.hpp
@@ -30,6 +30,11 @@ AttributeHandler<T>::AttributeHandler(GenericMap* m, AttributeMultiVector<T>* am
 	m_map(m), m_attrib(amv)
 {}
 
+template <typename T>
+AttributeHandler<T>::AttributeHandler():
+	m_map(NULL), m_attrib(NULL)
+{}
+
 template <typename T>
 AttributeHandler<T>::AttributeHandler(const AttributeHandler<T>& ta):
 	m_map(ta.m_map), m_attrib(ta.m_attrib)
@@ -79,9 +84,9 @@ const std::string& AttributeHandler<T>::name() const
 template <typename T>
 bool AttributeHandler<T>::isValid() const
 {
-	return (m_map != NULL &&
-			m_attrib != NULL &&
-			m_attrib->getIndex() != AttributeContainer::UNKNOWN) ;
+	return !(m_map == NULL ||
+			m_attrib == NULL ||
+			m_attrib->getIndex() == AttributeContainer::UNKNOWN) ;
 }
 
 template <typename T>
diff --git a/include/Topology/generic/genericmap.h b/include/Topology/generic/genericmap.h
index a2d1d079c2ab74cfd80fc512d848e60f5d1b775d..f672d3056a7ae7e155b509c6d84f28da8cb9a97c 100644
--- a/include/Topology/generic/genericmap.h
+++ b/include/Topology/generic/genericmap.h
@@ -84,7 +84,7 @@ protected:
 	 */
 	AttributeContainer m_attribs[NB_ORBITS] ;
 
-	static std::map< std::string, RegisteredBaseAttribute* >* m_attributes_registry_map ;
+	static std::map<std::string, RegisteredBaseAttribute*>* m_attributes_registry_map ;
 
 	/**
 	 * Direct access to the Dart attributes that store the orbits embeddings
@@ -272,17 +272,16 @@ protected:
 	 * @param orbit the orbit of cell to use (xxx_ORBIT)
 	 * @return the marker to use
 	 */
-	Marker getNewMarker(unsigned int cell = DART_ORBIT, unsigned int thread=0);
+	Marker getNewMarker(unsigned int cell = DART_ORBIT, unsigned int thread = 0);
 
 	/**
 	 * release a marker of cell.
 	 * @param m the marker to release
 	 */
-	void releaseMarker(Marker m, unsigned int thread=0);
-
+	void releaseMarker(Marker m, unsigned int thread = 0);
 
 	/****************************************
-	 *         THREAD MANAGEMENT         *
+	 *          THREAD MANAGEMENT           *
 	 ****************************************/
 public:
 	/**
@@ -304,7 +303,6 @@ public:
 	 */
 	void removeThreadMarker(unsigned int nb);
 
-
 	/****************************************
 	 *             SAVE & LOAD              *
 	 ****************************************/
@@ -384,13 +382,13 @@ public:
 	 *  @param d a dart of the orbit
 	 *  @param f a functor obj
 	 */
-	bool foreach_dart_of_orbit(unsigned int orbit, Dart d, FunctorType& f, unsigned int thread=0);
+	bool foreach_dart_of_orbit(unsigned int orbit, Dart d, FunctorType& f, unsigned int thread = 0);
 
-	virtual bool foreach_dart_of_vertex(Dart d, FunctorType& f, unsigned int thread=0) = 0;
-	virtual bool foreach_dart_of_edge(Dart d, FunctorType& f, unsigned int thread=0) = 0;
-	virtual bool foreach_dart_of_face(Dart d, FunctorType& f, unsigned int thread=0) = 0;
-	virtual bool foreach_dart_of_volume(Dart d, FunctorType& f, unsigned int thread=0) = 0;
-	virtual bool foreach_dart_of_cc(Dart d, FunctorType& f, unsigned int thread=0) = 0;
+	virtual bool foreach_dart_of_vertex(Dart d, FunctorType& f, unsigned int thread = 0) = 0;
+	virtual bool foreach_dart_of_edge(Dart d, FunctorType& f, unsigned int thread = 0) = 0;
+	virtual bool foreach_dart_of_face(Dart d, FunctorType& f, unsigned int thread = 0) = 0;
+	virtual bool foreach_dart_of_volume(Dart d, FunctorType& f, unsigned int thread = 0) = 0;
+	virtual bool foreach_dart_of_cc(Dart d, FunctorType& f, unsigned int thread = 0) = 0;
 
 	/**
 	* execute functor for each orbit
@@ -398,7 +396,7 @@ public:
 	* @param f the functor
 	* @param good the selector of darts
 	*/
-	bool foreach_orbit(unsigned int orbit, FunctorType& f, const FunctorSelect& good = SelectorTrue(),unsigned int thread=0);
+	bool foreach_orbit(unsigned int orbit, FunctorType& f, const FunctorSelect& good = SelectorTrue(), unsigned int thread = 0);
 
 	//! Count the number of orbits of dimension dim in the map
 	/*! @param dim the dimension of the orbit
diff --git a/include/Topology/generic/genericmap.hpp b/include/Topology/generic/genericmap.hpp
index bfd6f5d88bbb345be271c745110ddb46c696a3f9..421025fd91885926c341d213076e746826f88cdf 100644
--- a/include/Topology/generic/genericmap.hpp
+++ b/include/Topology/generic/genericmap.hpp
@@ -242,9 +242,7 @@ inline void GenericMap::swapEmbeddingContainers(unsigned int orbit1, unsigned in
 	m_attribs[orbit1].setOrbit(orbit1) ;	// to update the orbit information
 	m_attribs[orbit2].setOrbit(orbit2) ;	// in the contained AttributeMultiVectors
 
-	AttributeMultiVector<unsigned int>* e = m_embeddings[orbit1] ;
-	m_embeddings[orbit1] = m_embeddings[orbit2] ;
-	m_embeddings[orbit2] = e ;
+	m_embeddings[orbit1]->swap(m_embeddings[orbit2]) ;
 
 	for(unsigned int t = 0; t < m_nbThreads; ++t)
 	{
diff --git a/include/Topology/map/map2.h b/include/Topology/map/map2.h
index eb7df4cf73dba8cb48af1f528b901f3f964f9c9b..20cffa05740f4a67d6ebf9cfcf91d9c2297a4720 100644
--- a/include/Topology/map/map2.h
+++ b/include/Topology/map/map2.h
@@ -235,13 +235,6 @@ public:
 	 *  @param marker
 	 */
 	void closeMap(DartMarker& marker);
-
-	// TODO a mettre en algo
-	/**
-	* Reverse orientation of map (reverse orientation of all faces)
-	* no dart created, each dart keeps its embedding, only changing phi1 and phi2
-	*/
-	void reverseOrientation();
 	//@}
 
 	/*! @name Topological Queries
diff --git a/src/Container/attributeContainer.cpp b/src/Container/attributeContainer.cpp
index 3afbce3904ec750eb42b2030b485e4555f248150..c0c3dd192a8a860d3d2221d73485440cb6571607 100644
--- a/src/Container/attributeContainer.cpp
+++ b/src/Container/attributeContainer.cpp
@@ -125,8 +125,7 @@ const std::string& AttributeContainer::getAttributeName(unsigned int index)
 	assert(index < m_tableAttribs.size() || !"getAttributeName: attribute index out of bounds");
 	assert(m_tableAttribs[index] != NULL || !"getAttributeName: attribute does not exist");
 
-	if(m_tableAttribs[index] != NULL)
-		return m_tableAttribs[index]->getName() ;
+	return m_tableAttribs[index]->getName() ;
 }
 
 template <typename T>
diff --git a/src/Topology/generic/attribmap.cpp b/src/Topology/generic/attribmap.cpp
index f6e4a6b04de8fc5b4d2d21aa0cec4e472fc3fa91..ed6b6d9d4dcd04ec2156d8d964b2f93809559fc7 100644
--- a/src/Topology/generic/attribmap.cpp
+++ b/src/Topology/generic/attribmap.cpp
@@ -56,7 +56,9 @@ void AttribMap::addEmbedding(unsigned int orbit)
 	AttributeContainer& cellCont = m_attribs[orbit];
 	for (unsigned int t = 0; t < m_nbThreads; ++t)
 	{
-		AttributeMultiVector<Mark>* amvMark = cellCont.addAttribute<Mark>("Mark") ;
+		std::stringstream ss ;
+		ss << "Mark_"<< t ;
+		AttributeMultiVector<Mark>* amvMark = cellCont.addAttribute<Mark>(ss.str()) ;
 		m_markerTables[orbit][t] = amvMark ;
 	}
 }
diff --git a/src/Topology/generic/genericmap.cpp b/src/Topology/generic/genericmap.cpp
index b722768b119da63985382debaa4bc0e30ef201ff..5ed1c2c94b29103056098163308b011e2d039141 100644
--- a/src/Topology/generic/genericmap.cpp
+++ b/src/Topology/generic/genericmap.cpp
@@ -33,8 +33,7 @@ namespace CGoGN
 
 std::map<std::string, RegisteredBaseAttribute*>* GenericMap::m_attributes_registry_map = NULL ;
 
-GenericMap::GenericMap()
-:m_nbThreads(1)
+GenericMap::GenericMap() : m_nbThreads(1)
 {
 	if(m_attributes_registry_map == NULL)
 		m_attributes_registry_map = new std::map<std::string, RegisteredBaseAttribute*> ;
@@ -114,7 +113,6 @@ void GenericMap::setDartEmbedding(unsigned int orbit, Dart d, unsigned int emb)
 	(*m_embeddings[orbit])[d.index] = emb ;
 }
 
-
 /****************************************
  *        ATTRIBUTES MANAGEMENT         *
  ****************************************/
@@ -150,6 +148,58 @@ bool GenericMap::registerAttribute(const std::string &nameType)
 	return true;
 }
 
+/****************************************
+ *          THREAD MANAGEMENT           *
+ ****************************************/
+
+void GenericMap::addThreadMarker(unsigned int nb)
+{
+	unsigned int th ;
+
+	for (unsigned int j = 0; j < nb; ++j)
+	{
+		th = m_nbThreads ;
+		m_nbThreads++ ;
+
+		for (unsigned int i = 0; i < NB_ORBITS; ++i)
+		{
+			if (isOrbitEmbedded(i))
+			{
+				std::stringstream ss ;
+				ss << "Mark_"<< th ;
+				AttributeContainer& cellCont = m_attribs[i] ;
+				AttributeMultiVector<Mark>* amvMark = cellCont.addAttribute<Mark>(ss.str()) ;
+				m_markerTables[i][th] = amvMark ;
+			}
+		}
+	}
+}
+
+unsigned int GenericMap::getNbThreadMarkers()
+{
+	return m_nbThreads;
+}
+
+void GenericMap::removeThreadMarker(unsigned int nb)
+{
+	unsigned int th = 0;
+	while ((m_nbThreads > 1) && (nb > 0))
+	{
+		th = --m_nbThreads ;
+		--nb;
+		for (unsigned int i = 0; i < NB_ORBITS; ++i)
+		{
+			if (isOrbitEmbedded(i))
+			{
+				std::stringstream ss ;
+				ss << "Mark_"<< th ;
+				AttributeContainer& cellCont = m_attribs[i] ;
+				cellCont.removeAttribute(ss.str()) ;
+				m_markerTables[i][th] = NULL ;
+			}
+		}
+	}
+}
 
 /****************************************
  *             SAVE & LOAD              *
@@ -464,7 +514,6 @@ bool GenericMap::loadMapBin(const std::string& filename)
 	return true;
 }
 
-
 /****************************************
  *           DARTS TRAVERSALS           *
  ****************************************/
@@ -524,55 +573,4 @@ unsigned int GenericMap::getNbOrbits(unsigned int orbit, const FunctorSelect& go
 	return fcount.getNb();
 }
 
-void GenericMap::addThreadMarker(unsigned int nb)
-{
-	unsigned int th ;
-
-	for (unsigned int j = 0; j < nb; ++j)
-	{
-		th = m_nbThreads ;
-		m_nbThreads++ ;
-
-		for (unsigned int i = 0; i < NB_ORBITS; ++i)
-		{
-			if (isOrbitEmbedded(i))
-			{
-				AttributeContainer& cellCont = m_attribs[i] ;
-				std::stringstream ss ;
-				ss << "Mark_"<< th ;
-				AttributeMultiVector<Mark>* amvMark = cellCont.addAttribute<Mark>(ss.str()) ;
-				m_markerTables[i][th] = amvMark ;
-			}
-		}
-	}
-}
-
-unsigned int GenericMap::getNbThreadMarkers()
-{
-	return m_nbThreads;
-}
-
-void GenericMap::removeThreadMarker(unsigned int nb)
-{
-	unsigned int th = 0;
-	while ((m_nbThreads > 1) && (nb > 0))
-	{
-		th = --m_nbThreads ;
-		--nb;
-		for (unsigned int i = 0; i < NB_ORBITS; ++i)
-		{
-			if (isOrbitEmbedded(i))
-			{
-				AttributeContainer& cellCont = m_attribs[i] ;
-				std::stringstream ss ;
-				ss << "Mark_"<< th ;
-				cellCont.removeAttribute(ss.str()) ;
-				m_markerTables[i][th] = NULL ;
-			}
-		}
-	}
-}
-
-
-
 } // namespace CGoGN
diff --git a/src/Topology/map/map2.cpp b/src/Topology/map/map2.cpp
index 324f47fc270bd8c626ce22d5c6731506946c36eb..a99546240de47482d5d0bf89b89f97189b729dbd 100644
--- a/src/Topology/map/map2.cpp
+++ b/src/Topology/map/map2.cpp
@@ -353,46 +353,6 @@ void Map2::closeMap(DartMarker& marker)
 	}
 }
 
-void Map2::reverseOrientation()
-{
-	DartMarkerNoUnmark mf(*this);
-
-	// reverse all faces (only phi1 is modified)
-	for (Dart d = begin(); d != end(); next(d))
-	{
-		if (!mf.isMarked(d))
-		{
-			reverseFace(d);
-			mf.markOrbit(FACE_ORBIT, d);
-		}
-	}
-
-	// store all new phi2
-	std::vector<Dart> vd;
-	vd.reserve(getNbDarts());
-	for (Dart d = begin(); d != end(); next(d))
-	{
-		Dart e = phi_1(phi2(phi1(d)));
-		vd.push_back(e);
-	}
-
-	// apply the phi2sew with stored phi2 on all darts
-	std::vector<Dart>::iterator id = vd.begin();
-	for (Dart d = begin(); d != end(); next(d),++id)
-	{
-		if (mf.isMarked(d))
-		{
-			mf.unmark(d);		// unmark the two darts
-			mf.unmark(*id);
-			if (phi2(d) != d)
-				phi2unsew(d);	// unsew the two darts if necessary
-			if (phi2(*id) != *id)
-				phi2unsew(*id);
-			phi2sew(d, *id); 	// sew the darts
-		}
-	}
-}
-
 /*! @name Topological Queries
  *  Return or set various topological information
  *************************************************************************/