foam-extend4.1-coherent-io/applications/utilities/postProcessing/graphics/newEnsight76FoamExec/getLagrangianVector.H

// Not sure if this is necessary anymore

nVar -= Num_variables - nSprayVariables + lagrangianScalarNames.size();

if (nVar >= 0)
{

    word name = lagrangianVectorNames[nVar];

    IOField<vector> v
    (
        IOobject
        (
            name,
            runTime.timeName(),
            "lagrangian",
            mesh,
            IOobject::MUST_READ,
            IOobject::NO_WRITE
        )
    );

    if (v.size() != 0)
    {
        for
        (
            label n = 0;
            n < v.size();
            n++
        )
        {

            if (component == 0)
            {
                var_array[n+1] = v[n].x();
            }
            else if (component == 1)
            {
                var_array[n+1] = v[n].y();
            }
            else if (component == 2)
            {
                var_array[n+1] = v[n].z();
            }
        }
    }
}
else
{
    //Info << "getLagrangianVector: nVar = " << nVar << endl;
    return Z_UNDEF;
}