PointSetTopologyModifier.cpp

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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                             *
******************************************************************************/
#include <sofa/component/topology/PointSetTopologyModifier.h>
#include <sofa/simulation/common/StateChangeVisitor.h>
#include <sofa/simulation/common/TopologyChangeVisitor.h>
#include <sofa/component/topology/PointSetTopologyChange.h>
#include <sofa/component/topology/PointSetTopologyContainer.h>
#include <sofa/core/ObjectFactory.h>

namespace sofa
{

namespace component
{

namespace topology
{
  SOFA_DECL_CLASS(PointSetTopologyModifier)
  int PointSetTopologyModifierClass = core::RegisterObject("Point set topology modifier")   
    .add< PointSetTopologyModifier >();

    using namespace std;
    using namespace sofa::defaulttype;
    using namespace sofa::core::componentmodel::behavior;

    
    void PointSetTopologyModifier::init()
    {
        core::componentmodel::topology::TopologyModifier::init();       
        this->getContext()->get(m_container);
    }

    
    void PointSetTopologyModifier::swapPoints(const int i1, const int i2) 
    {
        PointsIndicesSwap *e2 = new PointsIndicesSwap( i1, i2 );
        addStateChange(e2);     
        propagateStateChanges();

        PointsIndicesSwap *e = new PointsIndicesSwap( i1, i2 ); 
        this->addTopologyChange(e);
    }

    
    void PointSetTopologyModifier::addPointsProcess(const unsigned int nPoints) 
    {
        m_container->addPoints(nPoints);
    }

    void PointSetTopologyModifier::addPointsWarning(const unsigned int nPoints, const bool addDOF) 
    {
        if(addDOF)
        {                              
            PointsAdded *e2 = new PointsAdded(nPoints);
            addStateChange(e2);     
            propagateStateChanges();
        }

        // Warning that vertices just got created
        PointsAdded *e = new PointsAdded(nPoints);
        this->addTopologyChange(e);
    }

    
    void PointSetTopologyModifier::addPointsWarning(const unsigned int nPoints, 
        const sofa::helper::vector< sofa::helper::vector< unsigned int > > &ancestors,
        const sofa::helper::vector< sofa::helper::vector< double       > >& coefs, 
        const bool addDOF) 
    {
        if(addDOF)
        {                              
            PointsAdded *e2 = new PointsAdded(nPoints, ancestors, coefs);
            addStateChange(e2);     
            propagateStateChanges();
        }

        // Warning that vertices just got created
        PointsAdded *e = new PointsAdded(nPoints, ancestors, coefs);
        this->addTopologyChange(e);
    }

    
    void PointSetTopologyModifier::removePointsWarning(sofa::helper::vector<unsigned int> &indices, 
                                                    const bool removeDOF) 
    { 
        // sort points so that they are removed in a descending order
        std::sort( indices.begin(), indices.end(), std::greater<unsigned int>() );  

        // Warning that these vertices will be deleted
        PointsRemoved *e = new PointsRemoved(indices);
        this->addTopologyChange(e);

        if(removeDOF)
        {       
            PointsRemoved *e2 = new PointsRemoved(indices);
            addStateChange(e2);
        }
    }

    
    void PointSetTopologyModifier::removePointsProcess(const sofa::helper::vector<unsigned int> & indices,
                                                                const bool removeDOF) 
    {
        if(removeDOF)
        {
            propagateStateChanges();
        }
        m_container->removePoints(indices.size());
    }

    
    void PointSetTopologyModifier::renumberPointsWarning( const sofa::helper::vector<unsigned int> &index, 
                                                        const sofa::helper::vector<unsigned int> &inv_index, 
                                                        const bool renumberDOF)
    {
        // Warning that these vertices will be deleted
        PointsRenumbering *e = new PointsRenumbering(index, inv_index);
        this->addTopologyChange(e);

        if(renumberDOF)
        {
            PointsRenumbering *e2 = new PointsRenumbering(index, inv_index);
            addStateChange(e2);
        }
    }

    
    void PointSetTopologyModifier::renumberPointsProcess( const sofa::helper::vector<unsigned int> &/*index*/, 
                                                        const sofa::helper::vector<unsigned int> &/*inv_index*/, 
                                                        const bool renumberDOF) 
    {
        if(renumberDOF)
        {
            propagateStateChanges();                                        
        }
    }

    void PointSetTopologyModifier::propagateTopologicalChanges()
    {
        sofa::simulation::TopologyChangeVisitor a;
        getContext()->executeVisitor(&a);

        // remove the changes we just propagated, so that we don't send then again next time
        m_container->resetTopologyChangeList();
    }

    void PointSetTopologyModifier::propagateStateChanges()
    {
        sofa::simulation::StateChangeVisitor a;
        getContext()->executeVisitor(&a);

        // remove the changes we just propagated, so that we don't send then again next time
        m_container->resetStateChangeList();
    }

    void PointSetTopologyModifier::notifyEndingEvent() 
    {
        sofa::core::componentmodel::topology::EndingEvent *e=new sofa::core::componentmodel::topology::EndingEvent();
        m_container->addTopologyChange(e);
    }

} // namespace topology

} // namespace component

} // namespace sofa