public override Vector Calculate_ShapeFunctions(Vector Xi)
{
Vector N = new Vector(NNPE);
Vector N_1D_M = ParametricInterpolation_1D_M.CalculateShapeFunctions(Xi.Values[0]);
Vector N_1D_N = ParametricInterpolation_1D_N.CalculateShapeFunctions(Xi.Values[1]);
int Index = 0;
for (int j = 0; j < NNPE_n; j++)
{
for (int i = 0; i < NNPE_m; i++)
{
N.Values[Index] = N_1D_M.Values[i] * N_1D_N.Values[j];
Index++;
}
}
return(N);
}
public override Vector Calculate_ShapeFunctions(Vector Xi)
{
Vector N_1D_L = ParametricInterpolation_1D_L.CalculateShapeFunctions(Xi.Values[0]);
return(N_1D_L);
}