StiffnessMatrixAssembler.hpp

/*

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*/

#ifndef STIFFNESSMATRIXASSEMBLER_HPP_
#define STIFFNESSMATRIXASSEMBLER_HPP_

#include "AbstractFeVolumeIntegralAssembler.hpp"

template<unsigned ELEMENT_DIM, unsigned SPACE_DIM>
class StiffnessMatrixAssembler
    : public AbstractFeVolumeIntegralAssembler<ELEMENT_DIM, SPACE_DIM, 1, false /*no vectors*/, true/*assembles matrices*/, NORMAL>
{
public:

    c_matrix<double,1*(ELEMENT_DIM+1),1*(ELEMENT_DIM+1)>
        ComputeMatrixTerm(
                c_vector<double, ELEMENT_DIM+1> &rPhi,
                c_matrix<double, SPACE_DIM, ELEMENT_DIM+1> &rGradPhi,
                ChastePoint<SPACE_DIM> &rX,
                c_vector<double,1> &rU,
                c_matrix<double, 1, SPACE_DIM> &rGradU /* not used */,
                Element<ELEMENT_DIM,SPACE_DIM>* pElement)
    {
        return prod( trans(rGradPhi), rGradPhi );
    }

    StiffnessMatrixAssembler(AbstractTetrahedralMesh<ELEMENT_DIM,SPACE_DIM>* pMesh)
        : AbstractFeVolumeIntegralAssembler<ELEMENT_DIM,SPACE_DIM,1,false,true,NORMAL>(pMesh)
    {
    }
};

#endif /*STIFFNESSMATRIXASSEMBLER_HPP_*/