Giuseppe:
> I would have a question about the output when using concentric_hyper_shells
<https://nam10.safelinks.protection.outlook.com/?
url=https%3A%2F%2Fwww.dealii.org%2Fcurrent%2Fdoxygen%2Fdeal.II%2FnamespaceGridGenerator.html%23abfcc142a9fc905a1abec9315693a57d4&data=05%7C02%7CWolfgang.Bangerth%40colostate.edu%7C43b61d1e63844cc265d608dd44815d28%7Cafb58802ff7a4bb1ab21367ff2ecfc8b%7C0%7C0%7C638742044588214483%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=J10wlQXEiI3DD5tP3evjf9bxQpJG6zAiG5Vy3E4G0L0%3D&reserved=0>
Is there any function that automatically can obtain and save in output the
spherical coordinates as well as the cartesian ones? This would be very useful
to lot some slices.
There is no such function. DataOut and all other functions I know of simply
output data using the coordinates of the vertices (perhaps modified by a
mapping, but otherwise as is). There is no easy way to modify coordinates
during graphical output. You are probably better off doing the transformation
in Visit or Paraview.
Perhaps if you explain what it is you actually want to do we can suggest other
things too.
Moreover, I take the opportunity for another question. Is there any
advancement in the matrix-free infrastructure when space_dim = dim - 1, as in
hyper_sphere <https://nam10.safelinks.protection.outlook.com/?
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I'll leave this question to those more familiar with the matrix free framework.
Best
W.
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