/******************************************************************************
*       SOFA, Simulation Open-Framework Architecture, development version     *
*                (c) 2006-2017 INRIA, USTL, UJF, CNRS, MGH                    *
*                                                                             *
* This program 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 program 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 program. If not, see <http://www.gnu.org/licenses/>.        *
*******************************************************************************
* Authors: The SOFA Team and external contributors (see Authors.txt)          *
*                                                                             *
* Contact information: contact@sofa-framework.org                             *
******************************************************************************/
#ifndef SOFA_COMPONENT_TOPOLOGY_TETRA2TRIANGLETOPOLOGICALMAPPING_H
#define SOFA_COMPONENT_TOPOLOGY_TETRA2TRIANGLETOPOLOGICALMAPPING_H
#include "config.h"

#include <sofa/core/topology/TopologicalMapping.h>

#include <sofa/defaulttype/Vec.h>
#include <map>

#include <sofa/core/BaseMapping.h>

namespace sofa
{

namespace component
{

namespace topology
{


/**
 * This class, called Tetra2TriangleTopologicalMapping, is a specific implementation of the interface TopologicalMapping where :
 *
 * INPUT TOPOLOGY = TetrahedronSetTopology
 * OUTPUT TOPOLOGY = TriangleSetTopology, as the boundary of the INPUT TOPOLOGY
 *
 * Tetra2TriangleTopologicalMapping class is templated by the pair (INPUT TOPOLOGY, OUTPUT TOPOLOGY)
 *
*/

class SOFA_TOPOLOGY_MAPPING_API Tetra2TriangleTopologicalMapping : public sofa::core::topology::TopologicalMapping
{
public:
    SOFA_CLASS(Tetra2TriangleTopologicalMapping,sofa::core::topology::TopologicalMapping);
protected:
    /** \brief Constructor.
     *
     */
    Tetra2TriangleTopologicalMapping();

    /** \brief Destructor.
     *
     * Does nothing.
     */
    virtual ~Tetra2TriangleTopologicalMapping();
public:
    /** \brief Initializes the target BaseTopology from the source BaseTopology.
     */
    virtual void init();


    /** \brief Translates the TopologyChange objects from the source to the target.
     *
     * Translates each of the TopologyChange objects waiting in the source list so that they have a meaning and
     * reflect the effects of the first topology changes on the second topology.
     *
     */
    virtual void updateTopologicalMappingTopDown();

    virtual unsigned int getFromIndex(unsigned int ind);
protected:
    Data<bool> flipNormals;
    Data<bool> noNewTriangles;
    Data<bool> noInitialTriangles;

    std::vector<unsigned int> addedTriangleIndex;
};

} // namespace topology

} // namespace component

} // namespace sofa

#endif // SOFA_COMPONENT_TOPOLOGY_TETRA2TRIANGLETOPOLOGICALMAPPING_H
