BaseForceField.cpp

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00001 /******************************************************************************
00002 *       SOFA, Simulation Open-Framework Architecture, version 1.0 beta 3      *
00003 *                (c) 2006-2008 MGH, INRIA, USTL, UJF, CNRS                    *
00004 *                                                                             *
00005 * This library is free software; you can redistribute it and/or modify it     *
00006 * under the terms of the GNU Lesser General Public License as published by    *
00007 * the Free Software Foundation; either version 2.1 of the License, or (at     *
00008 * your option) any later version.                                             *
00009 *                                                                             *
00010 * This library is distributed in the hope that it will be useful, but WITHOUT *
00011 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or       *
00012 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License *
00013 * for more details.                                                           *
00014 *                                                                             *
00015 * You should have received a copy of the GNU Lesser General Public License    *
00016 * along with this library; if not, write to the Free Software Foundation,     *
00017 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.          *
00018 *******************************************************************************
00019 *                              SOFA :: Framework                              *
00020 *                                                                             *
00021 * Authors: M. Adam, J. Allard, B. Andre, P-J. Bensoussan, S. Cotin, C. Duriez,*
00022 * H. Delingette, F. Falipou, F. Faure, S. Fonteneau, L. Heigeas, C. Mendoza,  *
00023 * M. Nesme, P. Neumann, J-P. de la Plata Alcade, F. Poyer and F. Roy          *
00024 *                                                                             *
00025 * Contact information: contact@sofa-framework.org                             *
00026 ******************************************************************************/
00027 #include "BaseForceField.h"
00028 
00029 namespace sofa
00030 {
00031 
00032 namespace core
00033 {
00034 
00035 namespace componentmodel
00036 {
00037 
00038 namespace behavior
00039 {
00040 
00041 void BaseForceField::addMBKdx(double /*mFactor*/, double bFactor, double kFactor)
00042 {
00043     if (kFactor != 0.0 || bFactor != 0.0)
00044     addDForce(kFactor, bFactor);
00045 }
00046 
00047 void BaseForceField::addMBKv(double /*mFactor*/, double bFactor, double kFactor)
00048 {
00049     if (kFactor != 0.0 || bFactor != 0.0)
00050     addDForceV(kFactor, bFactor);
00051 }
00052 
00053 void BaseForceField::addKToMatrix(sofa::defaulttype::BaseMatrix * /*mat*/, double /*kFact*/, unsigned int &/*offset*/)
00054 {
00055 
00056 }
00057 
00058 void BaseForceField::addBToMatrix(sofa::defaulttype::BaseMatrix * /*mat*/, double /*bFact*/, unsigned int &/*offset*/)
00059 {
00060 
00061 }
00062 
00063 void BaseForceField::addMBKToMatrix(sofa::defaulttype::BaseMatrix * matrix, double /*mFact*/, double bFact, double kFact, unsigned int &offset)
00064 {
00065     if (kFact != 0.0)
00066     addKToMatrix(matrix, kFact, offset);
00067     if (bFact != 0.0)
00068     addBToMatrix(matrix, bFact, offset);
00069 }
00070 
00071 } // namespace behavior
00072 
00073 } // namespace componentmodel
00074 
00075 } // namespace core
00076 
00077 } // namespace sofa