ExtendedBidomainMassMatrixAssembler.cpp

/*

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*/

#include "ExtendedBidomainMassMatrixAssembler.hpp"
#include "HeartRegionCodes.hpp"


template<unsigned DIM>
c_matrix<double,3*(DIM+1),3*(DIM+1)> ExtendedBidomainMassMatrixAssembler<DIM>::ComputeMatrixTerm(
            c_vector<double, DIM+1> &rPhi,
            c_matrix<double, DIM, DIM+1> &rGradPhi,
            ChastePoint<DIM> &rX,
            c_vector<double,3> &rU,
            c_matrix<double,3,DIM> &rGradU /* not used */,
            Element<DIM,DIM>* pElement)
{

    c_matrix<double,3*(DIM+1),3*(DIM+1)> ret = zero_matrix<double>(3*(DIM+1),3*(DIM+1));

    if (!HeartRegionCode::IsRegionBath( pElement->GetUnsignedAttribute() )) // ie if a tissue element
    {
        c_matrix<double, DIM+1, DIM+1> basis_outer_prod = outer_prod(rPhi, rPhi);

        // first row,  first column
        matrix_slice<c_matrix<double, 3*DIM+3, 3*DIM+3> >
        slice00(ret, slice (0, 3, DIM+1), slice (0, 3, DIM+1));
        slice00 =  basis_outer_prod;

        // second row, second column
        matrix_slice<c_matrix<double, 3*DIM+3, 3*DIM+3> >
        slice11(ret, slice (1, 3, DIM+1), slice (1, 3, DIM+1));
        slice11 = basis_outer_prod;

        // third row, third column
        matrix_slice<c_matrix<double, 3*DIM+3, 3*DIM+3> >
        slice22(ret, slice (2, 3, DIM+1), slice (2, 3, DIM+1));
        slice22 = basis_outer_prod;
    }
    return ret;
}



// explicit instantiation

template class ExtendedBidomainMassMatrixAssembler<1>;
template class ExtendedBidomainMassMatrixAssembler<2>;
template class ExtendedBidomainMassMatrixAssembler<3>;