On 8/29/22 08:36, Simon Wiesheier wrote:

DataOut<dim> data_out;
data_out.add_data_vector(dof_handler_attached_to_tria1, sol_vector_tria1);
data_out.add_data_vector(dof_handler_attached_to_tria2, sol_vector_tria2);

In debug mode, this code will not run because tria1 and tria2 are different;
I can only add 'sol_vector_tria' or ' sol_vector_tria2' to data_out,
but not both of them together.

That said, the only way is to use two seperate DataOut classes, is it?

I do not recall whether the functions that allow you to specify a separate DoFHandler require these DoFHandler objects to use the same triangulation. But knowing the implementation, it would make sense to me if they did. If that were true, then the last question above would has "yes" as the answer.

Best
 W.

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Wolfgang Bangerth          email:                 [email protected]
                           www: http://www.math.colostate.edu/~bangerth/

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