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/*******************************************************************************
* CGoGN: Combinatorial and Geometric modeling with Generic N-dimensional Maps  *
* version 0.1                                                                  *
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* Copyright (C) 2009-2012, IGG Team, LSIIT, University of Strasbourg           *
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*                                                                              *
* 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.           *
*                                                                              *
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* Web site: http://cgogn.unistra.fr/                                           *
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* Contact information: cgogn@unistra.fr                                        *
*                                                                              *
*******************************************************************************/

#ifndef __GENERIC_MAP__
#define __GENERIC_MAP__

#include <iostream>
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#include <string>
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#include <sstream>
#include <fstream>
#include <iomanip>
#include <list>
#include <vector>
#include <map>
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#include <boost/thread/mutex.hpp>

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#include "Container/attributeContainer.h"
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#include "Topology/generic/dart.h"
#include "Topology/generic/marker.h"
#include "Topology/generic/functor.h"

namespace CGoGN
{

/**
 * Class that allows to browse a map
 * This is a pure virtual class that can be overloaded in:
 * - a map (generic and so on)
 * - a MapBrowserSelector
 * - a MapBrowserLinked (Attr or Auto)
 */
class MapBrowser
{
public:
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	virtual Dart begin() const = 0;
	virtual Dart end() const = 0;
	virtual void next(Dart& d) const = 0;
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};

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class AttributeHandlerGen ;
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class DartMarkerGen ;
class CellMarkerGen ;
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template<unsigned int CELL> class CellMarkerBase ;
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class GenericMap : public MapBrowser
{
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	template<typename T, unsigned int ORBIT> friend class AttributeHandler ;
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	template<typename T> friend class DartAutoAttribute ;
	template<typename T> friend class VertexAutoAttribute ;
	template<typename T> friend class EdgeAutoAttribute ;
	template<typename T> friend class FaceAutoAttribute ;
	template<typename T> friend class VolumeAutoAttribute ;
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	friend class DartMarkerGen ;
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	friend class CellMarkerGen ;
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	template<unsigned int CELL> friend class CellMarkerBase ;
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protected:
	/**
	 * Attributes Containers
	 */
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	AttributeContainer m_attribs[NB_ORBITS] ;
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	static std::map<std::string, RegisteredBaseAttribute*>* m_attributes_registry_map ;
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	static int m_nbInstances;

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	/**
	 * Direct access to the Dart attributes that store the orbits embeddings
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	 * (only initialized when necessary, i.e. addEmbedding function)
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	 */
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	AttributeMultiVector<unsigned int>* m_embeddings[NB_ORBITS] ;
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	/**
	 * Direct access to quick traversal attributes
	 * (initialized by enableQuickTraversal function)
	 */
	AttributeMultiVector<Dart>* m_quickTraversal[NB_ORBITS] ;

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	/**
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	 * Marks manager
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	 */
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	MarkSet m_marksets[NB_ORBITS][NB_THREAD] ;
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	/**
	 * Direct access to the attributes that store Marks
	 */
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	AttributeMultiVector<Mark>* m_markTables[NB_ORBITS][NB_THREAD] ;

	unsigned int m_nbThreads ;
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	/**
	 * Store links to created AttributeHandlers, DartMarkers and CellMarkers
	 */
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	std::multimap<AttributeMultiVectorGen*, AttributeHandlerGen*> attributeHandlers ; // TODO think of MT (AttributeHandler creation & release are not thread safe!)
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	boost::mutex attributeHandlersMutex;

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	std::vector<DartMarkerGen*> dartMarkers[NB_THREAD] ;
	std::vector<CellMarkerGen*> cellMarkers[NB_THREAD] ;

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	/**
	 * is map a multiresolution map
	 */
#ifndef CGoGN_FORCE_MR
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	static const bool m_isMultiRes = false ;
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#else
	static const bool m_isMultiRes = true ;
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#endif

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	/**
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	 * container for multiresolution darts
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	 */
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	AttributeContainer m_mrattribs ;

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	/**
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	 * pointers to attributes of m_mrattribs that store indices in m_attribs[DART] (one for each level)
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	 */
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	std::vector< AttributeMultiVector<unsigned int>* > m_mrDarts ;
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	/**
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	 * pointer to attribute of m_mrattribs that stores darts insertion levels
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	 */
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	AttributeMultiVector<unsigned int>* m_mrLevels ;
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	/**
	 * vector that stores the number of darts inserted on each resolution level
	 */
	std::vector<unsigned int> m_mrNbDarts ;

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	/**
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	 * current level in multiresolution map
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	 */
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	unsigned int m_mrCurrentLevel ;
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	/**
	 * stack for current level temporary storage
	 */
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	std::vector<unsigned int> m_mrLevelStack ;
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public:
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	static const unsigned int UNKNOWN_ATTRIB = AttributeContainer::UNKNOWN ;
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	GenericMap() ;
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	~GenericMap() ;
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	virtual std::string mapTypeName() const = 0 ;
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	virtual unsigned int dimension() const = 0 ;

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	/**
	 * Clear the map
	 * @param removeAttrib
	 *   if false -> data is deleted but all attributes remain (all AttributeHandlers are still valid)
	 *   if true -> data and attributes are deleted (AttributeHandlers are invalid)
	 */
	virtual void clear(bool removeAttrib) ;
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	/**
	 * get the marker_set of an orbit and thread (used for Cell & Dart Marker)
	 */
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	template <unsigned int ORBIT>
	MarkSet& getMarkerSet(unsigned int thread = 0) { return m_marksets[ORBIT][thread]; }
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	/****************************************
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	 *     RESOLUTION LEVELS MANAGEMENT     *
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	 ****************************************/

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	void printMR() ;

	/**
	 * initialize the multiresolution attribute container
	 */
	void initMR() ;

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	/**
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	 * get the current resolution level (use only in MRMaps)
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	 */
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	unsigned int getCurrentLevel() ;

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	/**
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	 * set the current resolution level (use only in MRMaps)
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	 */
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	void setCurrentLevel(unsigned int l) ;

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	/**
	 * increment the current resolution level (use only in MRMaps)
	 */
	void incCurrentLevel() ;

	/**
	 * decrement the current resolution level (use only in MRMaps)
	 */
	void decCurrentLevel() ;

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	/**
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	 * store current resolution level on a stack (use only in MRMaps)
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	 */
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	void pushLevel() ;

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	/**
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	 * set as current the resolution level of the top of the stack (use only in MRMaps)
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	 */
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	void popLevel() ;

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	/**
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	 * get the maximum resolution level (use only in MRMaps)
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	 */
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	unsigned int getMaxLevel() ;

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//private:
//	/*
//	 * add a resolution level
//	 */
//	AttributeMultiVector<unsigned int>* addLevel();
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	/**
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	 * add a resolution level in the back of the level table (use only in MRMaps)
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	 */
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	void addLevelBack() ;
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	/**
	 * add a resolution level in the front of the level table (use only in MRMaps)
	 */
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	void addLevelFront();
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	/**
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	 * remove last resolution level (use only in MRMaps)
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	 */
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	void removeLevelBack() ;
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	/**
	 * remove first resolution level (use only in MRMaps)
	 */
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	void removeLevelFront();

	/**
	 * copy MRDarts from level-1 to level
	 */
	void copyLevel(unsigned int level);

	/**
	 * duplicate darts from level-1 to level
	 */
	void duplicateDarts(unsigned int level);

	/**
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	 * duplicate a dart starting from current level
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	 */
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	void duplicateDart(Dart d) ;
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	void duplicateDartAtOneLevel(Dart d, unsigned int level) ;
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	/****************************************
	 *           DARTS MANAGEMENT           *
	 ****************************************/
protected:
	/**
	 * Add a dart to the map
	 */
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	virtual Dart newDart() ;
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	/**
	 * Erase a dart of the map
	 */
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	void deleteDart(Dart d) ;
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	/**
	 * create a copy of a dart (based on its index in m_attribs[DART]) and returns its index
	 */
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	unsigned int copyDartLine(unsigned int index) ;
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	/**
	 * Properly deletes a dart in m_attribs[DART]
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	 */
	void deleteDartLine(unsigned int index) ;

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public:
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	/**
	 * get the index of dart in topological table
	 */
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	unsigned int dartIndex(Dart d) const;
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	/**
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	 * get the insertion level of a dart (use only in MRMaps)
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	 */
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	unsigned int getDartLevel(Dart d) const ;
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	/**
	 *
	 */
	void incDartLevel(Dart d) const ;

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	/**
	 * get the number of darts inserted in the given leveldart (use only in MRMaps)
	 */
	unsigned int getNbInsertedDarts(unsigned int level) ;

	/**
	 * get the number of darts that define the map of the given leveldart (use only in MRMaps)
	 */
	unsigned int getNbDarts(unsigned int level) ;
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	/**
	 * @return the number of darts in the map
	 */
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	unsigned int getNbDarts() ;
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	/**
	 * return true if the dart d refers to a valid index
	 */
	bool isDartValid(Dart d) ;

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	/****************************************
	 *         EMBEDDING MANAGEMENT         *
	 ****************************************/

	/**
	 * tell if an orbit is embedded or not
	 */
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	template <unsigned int ORBIT>
	bool isOrbitEmbedded() const ;
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	bool isOrbitEmbedded(unsigned int orbit) const ;
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	/**
	 * get the cell index of the given dimension associated to dart d
	 * @return EMBNULL if the orbit of d is not attached to any cell
	 */
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	template<unsigned int ORBIT>
	unsigned int getEmbedding(Dart d) ;
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	/**
	 * Set the cell index of the given dimension associated to dart d
	 */
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	template <unsigned int ORBIT>
	void setDartEmbedding(Dart d, unsigned int emb) ;
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	/**
	 * Set the cell index of the given dimension associated to dart d
	 * !!! WARNING !!! use only on freshly inserted darts (no unref is done on old embedding) !!! WARNING !!!
	 */
	template <unsigned int ORBIT>
	void initDartEmbedding(Dart d, unsigned int emb) ;

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	/**
	 * Copy the index of the cell associated to a dart over an other dart
	 * @param orbit the id of orbit embedding
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	 * @param dest the dart to overwrite
	 * @param src the dart to copy
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	 */
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	template <unsigned int ORBIT>
	void copyDartEmbedding(Dart dest, Dart src) ;
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	/**
	 * Allocation of some place in attrib table
	 * @param orbit the orbit of embedding
	 * @return the index to use as embedding
	 */
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	template <unsigned int ORBIT>
	unsigned int newCell() ;
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	/**
	* 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
	*/
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	template <unsigned int ORBIT>
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	void setOrbitEmbedding(Dart d, unsigned int 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>
	void initOrbitEmbedding(Dart d, unsigned int em) ;
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	/**
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	* Associate an new cell to all darts of an orbit
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	* @param orbit orbit to embed
	* @param d a dart of the topological cell
	* @return index of the attribute in table
	*/
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	template <unsigned int ORBIT>
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	unsigned int setOrbitEmbeddingOnNewCell(Dart d) ;
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	/**
	 * 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>
	unsigned int initOrbitEmbeddingNewCell(Dart d) ;
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	/**
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	 * Copy the cell associated to a dart over an other dart
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	 * @param orbit attribute orbit to use
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	 * @param d the dart to overwrite (dest)
	 * @param e the dart to copy (src)
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	 */
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	template <unsigned int ORBIT>
	void copyCell(Dart d, Dart e) ;
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	/**
	 * Line of attributes i is overwritten with line j
	 * @param orbit attribute orbit to use
	 * @param i line destination of copy
	 * @param j line source of copy
	 */
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	template <unsigned int ORBIT>
	void copyCell(unsigned int i, unsigned int j) ;
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	/**
	 * Line of attributes i is initialized
	 * @param orbit attribute orbit to use
	 * @param i line to init
	 */
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	template <unsigned int ORBIT>
	void initCell(unsigned int i) ;
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	/**
	 * Traverse the map and embed all orbits of the given dimension with a new cell
	 * @param realloc if true -> all the orbits are embedded on new cells, if false -> already embedded orbits are not impacted
	 */
	template <unsigned int ORBIT>
	void initAllOrbitsEmbedding(bool realloc = false) ;


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	/****************************************
	 *     QUICK TRAVERSAL MANAGEMENT       *
	 ****************************************/

	template <unsigned int ORBIT>
	void enableQuickTraversal() ;

	template <unsigned int ORBIT>
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	void updateQuickTraversal(const FunctorSelect& good = allDarts) ;
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	template <unsigned int ORBIT>
	AttributeMultiVector<Dart>* getQuickTraversal() ;

	template <unsigned int ORBIT>
	void disableQuickTraversal() ;

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	/****************************************
	 *        ATTRIBUTES MANAGEMENT         *
	 ****************************************/

	/**
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	 * get the attrib container of a given orbit
	 * @param orbit the orbit !!! (bilbo the orbit !)
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	 */
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	template <unsigned int ORBIT>
	AttributeContainer& getAttributeContainer() ;
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	/**
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	 * get a multi vector of mark attribute (direct access with [i])
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	 */
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	template <unsigned int ORBIT>
	AttributeMultiVector<Mark>* getMarkVector(unsigned int thread = 0) ;
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	/**
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	 * return a pointer to the Dart attribute vector that store the embedding of the given orbit
	 * (may be NULL if the orbit is not embedded)
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	 */
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	template <unsigned int ORBIT>
	AttributeMultiVector<unsigned int>* getEmbeddingAttributeVector() ;
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	/**
	 * get the MR attribute container
	 */
	AttributeContainer& getMRAttributeContainer() ;

	/**
	 * get the MR attribute container
	 */
	AttributeMultiVector<unsigned int>* getMRDartAttributeVector(unsigned int level) ;

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	AttributeMultiVector<unsigned int>* getMRLevelAttributeVector();

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//	/**
//	 * swap two attribute containers
//	 */
//	void swapEmbeddingContainers(unsigned int orbit1, unsigned int orbit2) ;
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	/**
	 * static function for type registration
	 */
	template <typename R>
	static bool registerAttribute(const std::string &nameType) ;

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	/**
	 * print attributes name of map in std::cout (for debugging)
	 */
	void viewAttributesTables() ;

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	void printDartsTable();

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protected:
	/****************************************
	 *   EMBEDDING ATTRIBUTES MANAGEMENT    *
	 ****************************************/
	/**
	 * Create the dart attribute to store the embedding of this orbit (for internal use only)
	 */
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	template <unsigned int ORBIT>
	void addEmbedding() ;
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	/****************************************
	 *  TOPOLOGICAL ATTRIBUTES MANAGEMENT   *
	 ****************************************/

	/**
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	 * Add a topological relation in the map
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	 * @param name name of relation
	 */
	AttributeMultiVector<Dart>* addRelation(const std::string& name) ;

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	/**
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	 * Get AttributeMultivector pointer of a relation attribute
	 * @param name name of the relation
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	 * @return the attribute multi-vector pointer
	 */
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	AttributeMultiVector<Dart>* getRelation(const std::string& name) ;
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	/****************************************
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	 *          THREAD MANAGEMENT           *
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	 ****************************************/
public:
	/**
	 * add  threads (a table of Marker per orbit for each thread)
	 * to allow MT
	 * @param nb thread to add
	 */
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	void addThreadMarker(unsigned int nb) ;
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	/**
	 * return allowed threads
	 * @return the number of threads (including principal)
	 */
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	unsigned int getNbThreadMarkers() ;
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	/**
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	 * Remove some added threads
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	 * @return remaining number of threads (including principal)
	 */
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	void removeThreadMarker(unsigned int nb) ;
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	/****************************************
	 *             SAVE & LOAD              *
	 ****************************************/
public:
	/**
	 * check if an xml node has a given name
	 * @param node the xml node
	 * @param name the name
	 * @ return true if node has the good name
	 */
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//	bool chechXmlNode(xmlNodePtr node, const std::string& name) ;
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	/**
	 * update the pointer of embedding vector after loading
	 */
	void update_m_emb_afterLoad();

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	/**
	 * update the markTables and recursively from real type the topo shortcut pointers
	 */
	virtual void update_topo_shortcuts();

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	/**
	 * Save map in a XML file
	 * @param filename the file name
	 * @return true if OK
	 */
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//	bool saveMapXml(const std::string& filename, bool compress = false) ;
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	 /**
	 * Load map from a XML file
	 * @param filename the file name
	 * @return true if OK
	 */
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//	bool loadMapXml(const std::string& filename, bool compress = false) ;
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	/**
	 * Save map in a binary file
	 * @param filename the file name
	 * @return true if OK
	 */
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	bool saveMapBin(const std::string& filename) ;
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	/**
	 * Load map from a binary file
	 * @param filename the file name
	 * @return true if OK
	 */
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	bool loadMapBin(const std::string& filename) ;
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	/**
	 * copy from another map (of same type)
	 */
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	bool copyFrom(const GenericMap& map) ;
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	/**
	 * Dump attributes types and names per orbit
	 */
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	void dumpAttributesAndMarkers() ;
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	/**
	 * update topo relation after compacting the container:
	 */
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	virtual void compactTopoRelations(const std::vector<unsigned int>& oldnew) = 0 ;
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	/**
	 * compact the map
	 */
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	void compact() ;
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	/****************************************
	 *           DARTS TRAVERSALS           *
	 ****************************************/

	/**
	 * Begin of map
	 * @return the first dart of the map
	 */
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	Dart begin() const ;
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	/**
	 * End of map
	 * @return the end iterator (next of last) of the map
	 */
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	Dart end() const ;
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	/**
	 * allow to go from a dart to the next
	 * in the order of storage
	 * @param d reference to the dart to be modified
	 */
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	void  next(Dart& d) const ;
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	/**
	 * Apply a functor on each dart of the map
	 * @param f a ref to the functor obj
	 */
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	bool foreach_dart(FunctorType& f, const FunctorSelect& good = allDarts) ;
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	//! Apply a functor on every dart of an orbit
	/*! @param dim dimension of orbit
	 *  @param d a dart of the orbit
	 *  @param f a functor obj
	 */
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	template <unsigned int ORBIT>
	bool foreach_dart_of_orbit(Dart d, FunctorType& f, unsigned int thread = 0) ;
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	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 ;
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	virtual bool foreach_dart_of_face(Dart d, FunctorType& f, unsigned int thread = 0) { std::cerr << "Not implemented" << std::endl; return false; }
	virtual bool foreach_dart_of_volume(Dart d, FunctorType& f, unsigned int thread = 0) { std::cerr << "Not implemented" << std::endl; return false; }
	virtual bool foreach_dart_of_cc(Dart d, FunctorType& f, unsigned int thread = 0) { std::cerr << "Not implemented" << std::endl; return false; }
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	virtual bool foreach_dart_of_vertex1(Dart d, FunctorType& f, unsigned int thread = 0) { std::cerr << "Not implemented" << std::endl; return false; }
	virtual bool foreach_dart_of_edge1(Dart d, FunctorType& f, unsigned int thread = 0) { std::cerr << "Not implemented" << std::endl; return false; }
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	virtual bool foreach_dart_of_vertex2(Dart d, FunctorType& f, unsigned int thread = 0) { std::cerr << "Not implemented" << std::endl; return false; }
	virtual bool foreach_dart_of_edge2(Dart d, FunctorType& f, unsigned int thread = 0) { std::cerr << "Not implemented" << std::endl; return false; }
	virtual bool foreach_dart_of_face2(Dart d, FunctorType& f, unsigned int thread = 0) { std::cerr << "Not implemented" << std::endl; return false; }
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	/**
	* execute functor for each orbit
	* @param dim the dimension of the orbit
	* @param f the functor
	* @param good the selector of darts
	*/
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	template <unsigned int ORBIT>
	bool foreach_orbit(FunctorType& f, const FunctorSelect& good = allDarts, unsigned int thread = 0) ;
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	//! Count the number of orbits of dimension dim in the map
	/*! @param dim the dimension of the orbit
	 *	@param good the selector of darts
	 * 	@return the number of orbits
	 */
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	template <unsigned int ORBIT>
	unsigned int getNbOrbits(const FunctorSelect& good = allDarts) ;
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	//! For an orbit of a given dimension, return the number of incident cells of an other given dimension
	/*! @param d a dart
	 */
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	template <typename MAP, unsigned int ORBIT, unsigned int INCIDENT>
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	unsigned int degree(Dart d);

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protected:
	/// boundary marker
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	Mark m_boundaryMarker ;
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	/**
	 * mark a dart as  belonging to boundary
	 */
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	void boundaryMark(Dart d) ;
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	/**
	 * unmark a dart from the boundary
	 */
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	void boundaryUnmark(Dart d) ;
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public:
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	/**
	 * test if a dart belong to the boundary
	 */
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	bool isBoundaryMarked(Dart d) const ;
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protected:
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	/**
	 * mark an orbit of dart as belonging to boundary
	 */
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	template <unsigned int ORBIT>
	void boundaryMarkOrbit(Dart d) ;
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	/**
	 * unmark an orbit of dart from the boundary
	 */
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	template <unsigned int ORBIT>
	void boundaryUnmarkOrbit(Dart d) ;
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	/**
	 * clear all boundary markers
	 */
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	void boundaryUnmarkAll() ;
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} ;

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//
//template <typename MAP>
//bool foreach_dart_of_orbit_in_parent(MAP* ptrMap, unsigned int orbit, Dart d, FunctorType& f, unsigned int thread = 0)
//{
//	switch(orbit)
//	{
//		case  DART: return f(d);
//		case  VERTEX: return ptrMap->MAP::ParentMap::foreach_dart_of_vertex(d, f, thread) ;
//		case  EDGE: return ptrMap->MAP::ParentMap::foreach_dart_of_edge(d, f, thread) ;
//		case  ORIENTED_FACE: return ptrMap->MAP::ParentMap::foreach_dart_of_oriented_face(d, f, thread) ;
//		case  FACE: return ptrMap->MAP::ParentMap::foreach_dart_of_face(d, f, thread) ;
//		case  VOLUME: return ptrMap->MAP::ParentMap::foreach_dart_of_volume(d, f, thread) ;
//		default: assert(!"Cells of this dimension are not handled") ;
//	}
//	return false ;
//}
//
//template <typename MAP>
//bool foreach_dart_of_orbit_in_parent2(MAP* ptrMap, unsigned int orbit, Dart d, FunctorType& f, unsigned int thread = 0)
//{
//	switch(orbit)
//	{
//		case  DART: return f(d);
//		case  VERTEX: return ptrMap->MAP::ParentMap::ParentMap::foreach_dart_of_vertex(d, f,thread) ;
//		case  EDGE: return ptrMap->MAP::ParentMap::ParentMap::foreach_dart_of_edge(d, f, thread) ;
//		case  ORIENTED_FACE: return ptrMap->MAP::ParentMap::ParentMap::foreach_dart_of_oriented_face(d, f, thread) ;
//		case  FACE: return ptrMap->MAP::ParentMap::ParentMap::foreach_dart_of_face(d, f, thread) ;
//		case  VOLUME: return ptrMap->MAP::ParentMap::ParentMap::foreach_dart_of_volume(d, f, thread) ;
//		default: assert(!"Cells of this dimension are not handled") ;
//	}
//	return false ;
//}
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} //namespace CGoGN

#include "Topology/generic/genericmap.hpp"

#endif