Gravity.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 :: Modules                               *
00020 *                                                                             *
00021 * Authors: The SOFA Team and external contributors (see Authors.txt)          *
00022 *                                                                             *
00023 * Contact information: contact@sofa-framework.org                             *
00024 ******************************************************************************/
00025 #include <sofa/component/contextobject/Gravity.h>
00026 #include <sofa/defaulttype/Vec3Types.h>
00027 #include <sofa/simulation/tree/GNode.h>
00028 #include <sofa/core/ObjectFactory.h>
00029 #include <math.h>
00030 
00031 
00032 namespace sofa
00033 {
00034 
00035 namespace component
00036 {
00037 
00038 namespace contextobject
00039 {
00040 
00041 using namespace sofa::defaulttype;
00042 using namespace core::componentmodel::behavior;
00043 
00044 Gravity::Gravity()
00045 : f_gravity( initData(&f_gravity,Vector3(0,0,0),"gravity","Gravity in the world coordinate system") )
00046 {
00047 }
00048 
00049 void Gravity::apply()
00050 {
00051     getContext()->setGravityInWorld( f_gravity.getValue() );
00052 }
00053 
00054 SOFA_DECL_CLASS(Gravity)
00055 
00056 int GravityClass = core::RegisterObject("Gravity in world coordinates")
00057 .add< Gravity >()
00058 ;
00059 
00060 } // namespace contextobject
00061 
00062 } // namespace component
00063 
00064 } // namespace sofa
00065