Component dof index

[Uclus Heis]

Dear all, 

Is it possible to obtain the index of the total dof distribution for each component?

I work with two components, having a 2*N size system and I need to know where in my solution vector is each component.

I found functions like count_dofs_per_component or ComponentMask however, I can not find a option to obtain the index position of the components in the dof vector.

Thank you

[Wolfgang Bangerth]

On 8/9/22 06:22, Uclus Heis wrote:
>
> Is it possible to obtain the index of the total dof distribution for each
> component?
>
> I work with two components, having a 2*N size system and I need to know where
> in my solution vector is each component.

You want to look at DoFTools::extract_dofs(). It returns the indices of those
DoFs that correspond to one or several solution components.

Best
Wolfgang


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Wolfgang Bangerth email: bang...@colostate.edu
www: http://www.math.colostate.edu/~bangerth/