Dear Zhenghuai Guo,
Probably you can try to do this with the methods from
http://getfem.org/userdoc/interMM.html.
In particular, have a look at
Interpolation on a cloud of points:
void getfem::ga_interpolation_mti(md, expr, mti, result, extrapolation
= 0, rg=mesh_region::all_convexes(), nbpoints = size_type(-1));
I assume you can create a cloud of points from a single point.
But the above is a "heavy" tool which involves interpolation. Of course if
you know that you have a node in that specific location, you can extract
the degrees of freedom from the displacement vector.
So, let me know what you're using it for.
Best regards,
Andriy
On Sat, 16 Mar 2019 at 10:27, Zhenghuai Guo <[email protected]>
wrote:
> Hi Andriy,
>
>
>
> I have calculated a displacement field u on *a* meshfem *mfu*. For some
> analysis, I would like to
>
>
>
> 1. Obtain the displacement values on certain geometrical locations
> based on the geometrical coordinates.
>
>
>
> Could you please advise me to how to do this?
>
>
>
> Thank you very much
>
> Regards
>
> Zhenghuai Guo
>
