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/******************************************************************************
* SOFA, Simulation Open-Framework Architecture, version 1.0 beta 4 *
* (c) 2006-2009 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 *
******************************************************************************/
/***************************************************************************
* *
* 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 --
// PMLStiffSpringForceField translate an FEM object from Physical Model structure
// to sofa structure, using StiffSpringForceField.
// It inherits from PMLBody abstract class.
//-------------------------------------------------------------------------
#ifndef PMLSTIFFSPRINGFORCEFIELD_H
#define PMLSTIFFSPRINGFORCEFIELD_H
#include "PMLBody.h"
#include "sofapml.h"
#include <StructuralComponent.h>
#include <sofa/core/componentmodel/topology/BaseMeshTopology.h>
#include <sofa/component/topology/MeshTopology.h>
#include <sofa/component/collision/TriangleModel.h>
#include <sofa/component/forcefield/MeshSpringForceField.h>
#include <map>
namespace sofa
{
namespace filemanager
{
namespace pml
{
using namespace sofa::component::topology;
using namespace sofa::component::collision;
using namespace sofa::component::forcefield;
using namespace std;
class SOFA_BUILD_FILEMANAGER_PML_API PMLStiffSpringForceField: public PMLBody
{
public :
PMLStiffSpringForceField(StructuralComponent* body, GNode * parent);
~PMLStiffSpringForceField();
string isTypeOf() { return "StiffSpring"; }
///accessors
TriangleModel * getTriangleModel() { return tmodel; }
//LineModel * getLineModel() { return lmodel; }
//PointModel * getPointModel() { return pmodel; }
///merge a body with current object
bool FusionBody(PMLBody*);
Vector3 getDOF(unsigned int index);
GNode* getPointsNode() {return parentNode;}
private :
/// creation of the scene graph
void createMechanicalState(StructuralComponent* body);
void createTopology(StructuralComponent* body);
void createMass(StructuralComponent* body);
void createVisualModel(StructuralComponent* body);
void createForceField();
void createCollisionModel();
// extract edges to a list of lines
BaseMeshTopology::Line * hexaToLines(Cell* pCell);
BaseMeshTopology::Line * tetraToLines(Cell* pCell);
BaseMeshTopology::Line * triangleToLines(Cell* pCell);
BaseMeshTopology::Line * quadToLines(Cell* pCell);
//initialization of properties
void initMass(string m);
void initDensity(string m);
//structure
MeshSpringForceField<Vec3Types> *Sforcefield;
TriangleModel * tmodel;
//LineModel * lmodel;
//PointModel * pmodel;
//members for the mass (only one of the 2 vectors is filled)
std::vector<SReal> massList;
std::vector<SReal> density;
//properties
SReal ks; // spring stiffness
SReal kd; // damping factor
};
}
}
}
#endif
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