PMLInteractionForceField.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.                                             *
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License *
* for more details.                                                           *
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* You should have received a copy of the GNU Lesser General Public License    *
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* 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                             *
******************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

//-------------------------------------------------------------------------
//                      --   Description   --
//  PMLInteractionForceField create an interaction Forcefield (stiffSprings)
//  between 2 other pml Bodies. The sofa structure is translated from pml,
//  specifying the 2 bodies and the list of springs (LINES)
//  It inherits from PMLBody abstract class.
//-------------------------------------------------------------------------


#ifndef PMLINTERACTIONFORCEFIELD_H
#define PMLINTERACTIONFORCEFIELD_H

#include "PMLBody.h"
#include "sofa/component/forcefield/StiffSpringForceField.h"

#include <map>


namespace sofa
{

namespace filemanager
{

namespace pml
{

using namespace sofa::component::forcefield;
using namespace std;

class PMLInteractionForceField: public PMLBody
{
public :

    PMLInteractionForceField(StructuralComponent* body, PMLBody* b1, PMLBody* b2, GNode * parent);

    ~PMLInteractionForceField();

    string isTypeOf() { return "interaction"; }

    GNode* getPointsNode(){return NULL;}
    bool FusionBody(PMLBody*){return false;}
    Vector3 getDOF(unsigned int ){return Vector3();}

private :

    void createForceField();
    void createMechanicalState(StructuralComponent* ){}
    void createTopology(StructuralComponent* ){}
    void createMass(StructuralComponent* ){}
    void createVisualModel(StructuralComponent* ){}
    void createCollisionModel(){}

    void createSprings(StructuralComponent * body);


    //structure
    StiffSpringForceField<Vec3Types> *Sforcefield;
    PMLBody * body1;
    PMLBody * body2;

    //properties
    SReal  ks;          // spring stiffness
    SReal  kd;          // damping factor
};

}
}
}

#endif