MeshSpringForceField.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_FORCEFIELD_MESHSPRINGFORCEFIELD_H
#define SOFA_COMPONENT_FORCEFIELD_MESHSPRINGFORCEFIELD_H

#include <sofa/component/forcefield/StiffSpringForceField.h>
#include <set>

namespace sofa
{

namespace component
{

namespace forcefield
{

template<class DataTypes>
class MeshSpringForceField : public StiffSpringForceField<DataTypes>
{
public:
    typedef typename DataTypes::VecCoord VecCoord;
    typedef typename DataTypes::VecDeriv VecDeriv;
    typedef typename DataTypes::Coord Coord;
    typedef typename DataTypes::Deriv Deriv;
    typedef typename Coord::value_type Real;
    
protected:
    Data< Real >  linesStiffness;
    Data< Real >  linesDamping;
    Data< Real >  trianglesStiffness;
    Data< Real >  trianglesDamping;
    Data< Real >  quadsStiffness;
    Data< Real >  quadsDamping;
    Data< Real >  tetrasStiffness;
    Data< Real >  tetrasDamping;
    Data< Real >  cubesStiffness;
    Data< Real >  cubesDamping;

    void addSpring(std::set<std::pair<int,int> >& sset, int m1, int m2, Real stiffness, Real damping);
    
public:
    MeshSpringForceField()
      : linesStiffness(initData(&linesStiffness,Real(0),"linesStiffness","Stiffness for the Lines")), 
      linesDamping(initData(&linesDamping,Real(0),"linesDamping","Damping for the Lines")),
      trianglesStiffness(initData(&trianglesStiffness,Real(0),"trianglesStiffness","Stiffness for the Triangles")),
      trianglesDamping(initData(&trianglesDamping,Real(0),"trianglesDamping","Damping for the Triangles")),
      quadsStiffness(initData(&quadsStiffness,Real(0),"quadsStiffness","Stiffness for the Quads")), 
      quadsDamping(initData(&quadsDamping,Real(0),"quadsDamping","Damping for the Quads")),
      tetrasStiffness(initData(&tetrasStiffness,Real(0),"tetrasStiffness","Stiffness for the Tetras")),
      tetrasDamping(initData(&tetrasDamping,Real(0),"tetrasDamping","Damping for the Tetras")),
      cubesStiffness(initData(&cubesStiffness,Real(0),"cubesStiffness","Stiffness for the Cubes")),
      cubesDamping(initData(&cubesDamping,Real(0),"cubesDamping","Damping for the Cubes"))
    {
    }
        
    virtual double getPotentialEnergy();
        
    
    Real getStiffness() const { return linesStiffness.getValue(); }
    Real getLinesStiffness() const { return linesStiffness.getValue(); }
    Real getTrianglesStiffness() const { return trianglesStiffness.getValue(); }
    Real getQuadsStiffness() const { return quadsStiffness.getValue(); }
    Real getTetrasStiffness() const { return tetrasStiffness.getValue(); }
    Real getCubesStiffness() const { return cubesStiffness.getValue(); }
    void setStiffness(Real val)
    {
        linesStiffness.setValue(val);
        trianglesStiffness.setValue(val);
        quadsStiffness.setValue(val);
        tetrasStiffness.setValue(val);
        cubesStiffness.setValue(val);
    }
    void setLinesStiffness(Real val)
    {
        linesStiffness.setValue(val);
    }
    void setTrianglesStiffness(Real val)
    {
        trianglesStiffness.setValue(val);
    }
    void setQuadsStiffness(Real val)
    {
        quadsStiffness.setValue(val);
    }
    void setTetrasStiffness(Real val)
    {
        tetrasStiffness.setValue(val);
    }
    void setCubesStiffness(Real val)
    {
        cubesStiffness.setValue(val);
    }
    
    Real getDamping() const { return linesDamping.getValue(); }
    Real getLinesDamping() const { return linesDamping.getValue(); }
    Real getTrianglesDamping() const { return trianglesDamping.getValue(); }
    Real getQuadsDamping() const { return quadsDamping.getValue(); }
    Real getTetrasDamping() const { return tetrasDamping.getValue(); }
    Real getCubesDamping() const { return cubesDamping.getValue(); }
    void setDamping(Real val)
    {
        linesDamping.setValue(val);
        trianglesDamping.setValue(val);
        quadsDamping.setValue(val);
        tetrasDamping.setValue(val);
        cubesDamping.setValue(val);
    }
    void setLinesDamping(Real val)
    {
        linesDamping.setValue(val);
    }
    void setTrianglesDamping(Real val)
    {
        trianglesDamping.setValue(val);
    }
    void setQuadsDamping(Real val)
    {
        quadsDamping.setValue(val);
    }
    void setTetrasDamping(Real val)
    {
        tetrasDamping.setValue(val);
    }
    void setCubesDamping(Real val)
    {
        cubesDamping.setValue(val);
    }
    
    virtual void init();

    void parse(core::objectmodel::BaseObjectDescription* arg);

};

} // namespace forcefield

} // namespace component

} // namespace sofa

#endif