On 2/15/22 07:32, 'Markus Mehnert' via deal.II User Group wrote:
Thank you for your response. I identified the correct dofs by trial and error
which worked (9 dofs for a scalar quantity with quadratic polyorder).
However, when I use /"fe_face.system_to_base_index().first.first" /to
identify, which base element these dofs belong to, it does not at all fit the
theory as they should all belong to base 1, i.e. the electric potential (I
copied the output from my terminal)
The base group of dof 3 is: 1
The base group of dof 10 is: 1
The base group of dof 17 is: 1
The base group of dof 24 is: 1
The base group of dof 31 is: 1
The base group of dof 41 is: 2
The base group of dof 51 is: 0
The base group of dof 61 is: 2
The base group of dof 71 is: 2
This explains, why my former code did not work, however it raises the
question, why the dofs do not belong to the (correct) base element. Do you
have any idea?
Markus -- I have to admit that I'm not sure I can follow the details. Can you
create a small program that only creates the element and outputs what you are
interested in, along with an explanation of what you *think* it should output?
Best
W.
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Wolfgang Bangerth email: bange...@colostate.edu
www: http://www.math.colostate.edu/~bangerth/
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