Real&Imaginary Step-29

[Muhammad Adil]

Hi Everone,

In the tutorial step-29 of deal.II 8.3.0, the solution in paraview can be visualized as Real, Imaginary and Intensity.

Intensity is calculated manually in the tutorial and visualized but how paraview knows that solution ( u[i][0] and u[i][1] ) consits of two parts, one u[i][0] is real and the other u[i][1] is imaginary.

Because there is nothing in the mentioned in the code. Pleae anyone explain?

Adil

[Bruno Turcksin]

Adil,

If you look in the output_results section. You can see the following code:

std::vector<std::string> solution_names;

solution_names.emplace_back("Re_u");

solution_names.emplace_back("Im_u");

data_out.add_data_vector(solution, solution_names);

What happens is that the first component of solution is associated with Re_u and the second component with Im_u.

Best,

Bruno