diff --git a/include/Algo/Topo/embedding.h b/include/Algo/Topo/embedding.h
new file mode 100644
index 0000000000000000000000000000000000000000..4d87a985cbb1b702beeaec44de0516470e25357c
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+++ b/include/Algo/Topo/embedding.h
@@ -0,0 +1,133 @@
+/*******************************************************************************
+* CGoGN: Combinatorial and Geometric modeling with Generic N-dimensional Maps  *
+* version 0.1                                                                  *
+* Copyright (C) 2009-2012, 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: http://cgogn.unistra.fr/                                           *
+* Contact information: cgogn@unistra.fr                                        *
+*                                                                              *
+*******************************************************************************/
+
+#ifndef __ALGO_TOPO_EMBEDDING__
+#define __ALGO_TOPO_EMBEDDING__
+
+namespace CGoGN
+{
+
+namespace Algo
+{
+
+namespace Topo
+{
+
+/**
+* Set the index of the associated cell to all the darts of an orbit
+* @param orbit orbit to embed
+* @param d a dart of the topological vertex
+* @param em index of attribute to store as embedding
+*/
+template <unsigned int ORBIT, typename MAP>
+inline void setOrbitEmbedding(MAP& m, Cell<ORBIT> c, unsigned int em)
+{
+	assert(m.template isOrbitEmbedded<ORBIT>() || !"Invalid parameter: orbit not embedded");
+
+	m.foreach_dart_of_orbit(c, [&] (Dart d) { m.template setDartEmbedding<ORBIT>(d, em); });
+}
+
+/**
+ * Set the index of the associated cell to all the darts of an orbit
+ * !!! WARNING !!! use only on freshly inserted darts (no unref is done on old embedding)!!! WARNING !!!
+ */
+template <unsigned int ORBIT, typename MAP>
+inline void initOrbitEmbedding(MAP& m, Cell<ORBIT> c, unsigned int em)
+{
+	assert(m.template isOrbitEmbedded<ORBIT>() || !"Invalid parameter: orbit not embedded");
+
+	m.foreach_dart_of_orbit(c, [&] (Dart d) { m.template initDartEmbedding<ORBIT>(d, em); });
+}
+
+/**
+* Associate an new cell to all darts of an orbit
+* @param orbit orbit to embed
+* @param d a dart of the topological cell
+* @return index of the attribute in table
+*/
+template <unsigned int ORBIT, typename MAP>
+inline unsigned int setOrbitEmbeddingOnNewCell(MAP& m, Cell<ORBIT> c)
+{
+	assert(m.template isOrbitEmbedded<ORBIT>() || !"Invalid parameter: orbit not embedded");
+
+	unsigned int em = m.template newCell<ORBIT>();
+	setOrbitEmbedding<ORBIT>(m, c, em);
+	return em;
+}
+
+/**
+ * Associate an new cell to all darts of an orbit
+ * !!! WARNING !!! use only on freshly inserted darts (no unref is done on old embedding)!!! WARNING !!!
+ */
+template <unsigned int ORBIT, typename MAP>
+inline unsigned int initOrbitEmbeddingOnNewCell(MAP& m, Cell<ORBIT> d)
+{
+	assert(m.template isOrbitEmbedded<ORBIT>() || !"Invalid parameter: orbit not embedded");
+
+	unsigned int em = m.template newCell<ORBIT>();
+	initOrbitEmbedding<ORBIT>(m, d, em);
+	return em;
+}
+
+/**
+ * Copy the cell associated to a dart over an other dart
+ * @param orbit attribute orbit to use
+ * @param d the dart to overwrite (dest)
+ * @param e the dart to copy (src)
+ */
+template <unsigned int ORBIT, typename MAP>
+inline void copyCellAttributes(MAP& m, Cell<ORBIT> d, Cell<ORBIT> e)
+{
+	assert(m.template isOrbitEmbedded<ORBIT>() || !"Invalid parameter: orbit not embedded");
+
+	unsigned int dE = m.getEmbedding(d) ;
+	unsigned int eE = m.getEmbedding(e) ;
+	if(eE != EMBNULL)	// if the source is NULL, nothing to copy
+	{
+		if(dE == EMBNULL)	// if the dest is NULL, create a new cell
+			dE = setOrbitEmbeddingOnNewCell(m, d) ;
+		AttributeContainer& cont = m.template getAttributeContainer<ORBIT>();
+		cont.copyLine(dE, eE) ;	// copy the data
+	}
+}
+
+template <unsigned int DIM, unsigned int ORBIT, typename MAP>
+void boundaryMarkOrbit(MAP& m, Cell<ORBIT> c)
+{
+	m.foreach_dart_of_orbit(c, [&] (Dart d) { m.template boundaryMark<DIM>(d); });
+}
+
+template <unsigned int DIM, unsigned int ORBIT, typename MAP>
+void boundaryUnmarkOrbit(MAP& m, Cell<ORBIT> c)
+{
+	m.foreach_dart_of_orbit(c, [&] (Dart d)	{ m.template boundaryUnmark<DIM>(d);	});
+}
+
+} // namespace Topo
+
+} // namespace Algo
+
+} // namespace CGoGN
+
+#endif