Thank you, Daniel.
I solved my problem already in the following way before reading your post:
DataOut<dim> data_out;
data_out.attach_dof_handler(dof_handler);
// ========================[ DISPLACEMENT COMPONENTS
]=========================
std::vector<std::string> displacement_components;
switch (dim)
{
case 1:
displacement_components.push_back("displacement_x");
break;
case 2:
displacement_components.push_back("displacement_x");
displacement_components.push_back("displacement_y");
break;
case 3:
displacement_components.push_back("displacement_x");
displacement_components.push_back("displacement_y");
displacement_components.push_back("displacement_z");
break;
default:
Assert(false, ExcInternalError())
;
}
std::vector<DataComponentInterpretation::DataComponentInterpretation>
displacement_component_interpretation(dim,
DataComponentInterpretation::component_is_scalar);
// Collect data output
data_out.add_data_vector(incremental_displacement, displacement_components,
DataOut<dim>::type_dof_data, displacement_component_interpretation);
// ========================[ DISPLACEMENTS MAGNITUDE
]=========================
std::vector<std::string> displacement_magnitude(dim, "displacement");
std::vector<DataComponentInterpretation::DataComponentInterpretation>
displacement_magnitude_interpretation(dim,
DataComponentInterpretation::component_is_part_of_vector);
data_out.add_data_vector(incremental_displacement, displacement_magnitude,
DataOut<dim>::type_dof_data, displacement_magnitude_interpretation);
I thought there would be a more elegant solution than this, which is why I
asked here. But it seems your suggestion is similar to my approach.
Regarding the DataPostprocessor class, I am just using it for quantities at
integration points, e.g. strains etc.
Kind regards,
S. A. Mohseni
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