TopologicalChangeManager.h

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/******************************************************************************
*       SOFA, Simulation Open-Framework Architecture, version 1.0 beta 3      *
*                (c) 2006-2008 MGH, INRIA, USTL, UJF, CNRS                    *
*                                                                             *
* 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.          *
*******************************************************************************
*                               SOFA :: Modules                               *
*                                                                             *
* Authors: The SOFA Team and external contributors (see Authors.txt)          *
*                                                                             *
* Contact information: contact@sofa-framework.org                             *
******************************************************************************/

#ifndef SOFA_COMPONENT_COLLISION_TOPOLOGICALCHANGEMANAGER_H
#define SOFA_COMPONENT_COLLISION_TOPOLOGICALCHANGEMANAGER_H

#include <sofa/core/CollisionElement.h>

#include <sofa/core/BehaviorModel.h>


#include <sofa/defaulttype/Vec.h>
#include <sofa/defaulttype/Vec3Types.h>

#include <sofa/component/MechanicalObject.h>
#include <sofa/simulation/tree/GNode.h>

namespace sofa
{

namespace component
{
    namespace collision{
        class TriangleSetModel;
    }
}

namespace component
{

namespace collision
{
    using namespace sofa::defaulttype;

class TopologicalChangeManager
{
public:
    TopologicalChangeManager();
    ~TopologicalChangeManager();

    void removeItemsFromCollisionModel(sofa::core::CollisionElementIterator) const;
    bool incisionCollisionModel(sofa::core::CollisionElementIterator, Vector3&, bool, bool);

protected:

private:
    bool incisionTriangleModel(sofa::core::CollisionElementIterator, Vector3&, bool, bool);
    bool incisionTriangleSetTopology(sofa::core::componentmodel::topology::BaseMeshTopology*);
    bool incisionTriangleSetTopology(sofa::core::CollisionElementIterator, Vector3&, bool, bool, sofa::core::componentmodel::topology::BaseMeshTopology*);

    void removeItemsFromTriangleModel(sofa::core::CollisionElementIterator) const;
    void removeItemsFromTriangleSetModel(sofa::core::CollisionElementIterator) const;
    void removeItemsFromTriangleMeshModel(sofa::core::CollisionElementIterator) const;

private:
    struct Incision{
        Vec<3,double> a_init;
        Vec<3,double> b_init;
        unsigned int ind_ta_init;
        unsigned int ind_tb_init;

        bool is_first_cut;

        unsigned int b_last_init;
        sofa::helper::vector< unsigned int > b_p12_last_init;
        sofa::helper::vector< unsigned int > b_i123_last_init;

        unsigned int a_last_init;
        sofa::helper::vector< unsigned int >  a_p12_last_init;
        sofa::helper::vector< unsigned int >  a_i123_last_init;

    }   incision;
};

} // namespace collision

} // namespace component

} // namespace sofa

#endif