Dear Daniel,
  Thank you very much! It solves my question!
Best wishes,
Yuesu

On Sun, Jul 26, 2020 at 5:55 PM Daniel Arndt <d.arndt.m...@gmail.com> wrote:

> Yuesu,
>
> Have a look at FEFieldFunction (
> https://www.dealii.org/current/doxygen/deal.II/classFunctions_1_1FEFieldFunction.html)
> for the case that the interpolation points don't coincide with support
> points for nodal elements.
> Otherwise, you can use DoFTools::map_dofs_to_support_points (
> https://www.dealii.org/current/doxygen/deal.II/namespaceDoFTools.html#a5c7b6729af729af6d7deb67885467a79)
> and search fo the corresponding degree of freedom.
>
> Best,
> Daniel
>
> Am So., 26. Juli 2020 um 16:58 Uhr schrieb yuesu jin <jinyues...@gmail.com
> >:
>
>> Dear all,
>>   I am working on an elastic wave simulation code which needs to set up
>> receivers on the surface boundaries to record the waveform.  In this case,
>> how can I link the point coordinate with the dof handlers and extract
>> values from the solution vector? Thank you!
>> Best regards,
>>
>>
>> --
>> Yuesu Jin,
>>
>>
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>


-- 
Yuesu Jin,
Ph.D student,
University of Houston,
College of Natural Sciences and Mathematics,
Department of Earth and Atmospheric Sciences,
Houston, Texas 77204-5008
346-404-2062

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