Dear Wolfgang, thanks a lot for you answer. My goal would be able to reproduce images like these ones, which are a cross-section at a fixed latitude. Hence, I coulde use 'slice' type functions if I have spherical coordinates, but not with Cartesian ones.
Best, Giuseppe [image: Details are in the caption following the image] Il giorno martedì 4 febbraio 2025 alle 00:16:27 UTC+1 Wolfgang Bangerth ha scritto: > > 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/? > > url=https%3A%2F%2Fwww.dealii.org > %2Fcurrent%2Fdoxygen%2Fdeal.II%2FnamespaceGridGenerator.html%23ab2dc2f16fc52cf1e51b9afdc4264ac70&data=05%7C02%7CWolfgang.Bangerth% > 40colostate.edu > %7C43b61d1e63844cc265d608dd44815d28%7Cafb58802ff7a4bb1ab21367ff2ecfc8b%7C0%7C0%7C638742044588241438%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=qn2kDHNAb3K8TlUUoEGnYvEQYZQbajGnqRvrfosVC4U%3D&reserved=0>? > > I'll leave this question to those more familiar with the matrix free > framework. > > Best > W. > > -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to dealii+unsubscr...@googlegroups.com. To view this discussion visit https://groups.google.com/d/msgid/dealii/1bb7269f-93ba-4fe4-b428-0d045f0c2ce2n%40googlegroups.com.
