TriangleData.inl

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/******************************************************************************
*       SOFA, Simulation Open-Framework Architecture, version 1.0 beta 3      *
*                (c) 2006-2008 MGH, INRIA, USTL, UJF, CNRS                    *
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* 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    *
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*******************************************************************************
*                               SOFA :: Modules                               *
*                                                                             *
* Authors: The SOFA Team and external contributors (see Authors.txt)          *
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* Contact information: contact@sofa-framework.org                             *
******************************************************************************/
#ifndef SOFA_COMPONENT_TOPOLOGY_TRIANGLEDATA_INL
#define SOFA_COMPONENT_TOPOLOGY_TRIANGLEDATA_INL

#include <sofa/component/topology/TriangleData.h>
#include <sofa/component/topology/TriangleSetTopologyChange.h>
#include <sofa/component/topology/TetrahedronSetTopologyChange.h>

namespace sofa
{

namespace component
{

namespace topology
{


    template <typename T, typename Alloc>
    void TriangleData<T,Alloc>::handleTopologyEvents( std::list< const core::componentmodel::topology::TopologyChange *>::const_iterator changeIt, 
                                                     std::list< const core::componentmodel::topology::TopologyChange *>::const_iterator &end ) 
    {
        while( changeIt != end )
        {
            core::componentmodel::topology::TopologyChangeType changeType = (*changeIt)->getChangeType();

            switch( changeType ) 
            {
            case core::componentmodel::topology::TETRAHEDRAADDED:
            {
                if (m_createTetrahedronFunc) 
                {
                    const TetrahedraAdded *ea = static_cast< const TetrahedraAdded* >( *changeIt );
                    (*m_createTetrahedronFunc)(ea->tetrahedronIndexArray, m_createParam, *this);
                }
                break;
            }
            case core::componentmodel::topology::TETRAHEDRAREMOVED:
            {
                if (m_destroyTetrahedronFunc) 
                {
                    const TetrahedraRemoved *er = static_cast< const TetrahedraRemoved * >( *changeIt );
                    (*m_destroyTetrahedronFunc)(er->getArray(), m_createParam, *this);
                }
                break;
            }       
            case core::componentmodel::topology::TRIANGLESADDED:
            {
                const TrianglesAdded *ta = static_cast< const TrianglesAdded * >( *changeIt );
                add( ta->getNbAddedTriangles(), ta->triangleArray, ta->ancestorsList, ta->coefs );
                break;
            }

            case core::componentmodel::topology::TRIANGLESREMOVED:
            {
                const sofa::helper::vector<unsigned int> &tab = ( static_cast< const TrianglesRemoved *>( *changeIt ) )->getArray();
                remove( tab );
                break;
            }

            default:
            // Ignore events that are not Triangle or Point related.
            break;
            }; // switch( changeType )

            ++changeIt;
        }
    }

    template <typename T, typename Alloc>
    void TriangleData<T,Alloc>::swap( unsigned int i1, unsigned int i2 ) 
    {
        T tmp = (*this)[i1];
        (*this)[i1] = (*this)[i2];
        (*this)[i2] = tmp;
    }

    template <typename T, typename Alloc>
    void TriangleData<T,Alloc>::add( unsigned int nbTriangles, 
                                    const sofa::helper::vector< Triangle >& triangle, 
                                    const sofa::helper::vector< sofa::helper::vector< unsigned int > >& ancestors, 
                                    const sofa::helper::vector< sofa::helper::vector< double > >& coefs ) 
    {
        // Using default values
        unsigned int i0 = this->size();
        this->resize(i0+nbTriangles);

        for (unsigned int i = 0; i < nbTriangles; ++i)
        {
            T& t = (*this)[i0+i];
            if (ancestors.empty() || coefs.empty())
            {
                const sofa::helper::vector< unsigned int > empty_vecint;
                const sofa::helper::vector< double > empty_vecdouble;
                m_createFunc( i0+i, m_createParam, t, triangle[i], empty_vecint, empty_vecdouble );
            }
            else
                m_createFunc( i0+i, m_createParam, t, triangle[i], ancestors[i], coefs[i] );
        }
    }

    template <typename T, typename Alloc>
    void TriangleData<T,Alloc>::remove( const sofa::helper::vector<unsigned int> &index ) 
    {
        unsigned int last = this->size() -1;

        for (unsigned int i = 0; i < index.size(); ++i)
        {
            m_destroyFunc( index[i], m_destroyParam, (*this)[index[i]] );
            swap( index[i], last );
            --last;
        }

        resize( this->size() - index.size() );
    }

} // namespace topology

} // namespace component

} // namespace sofa

#endif // _TriangleDATA_INL_