> It is not cumbersome at all to implement it in the assembly function. I > implemented it, and it is just one extra line of code in the assembly > function. The big advantage I find in somehow including that 2πr factor in > the > JxW(), applies when having a big code that solves several PDEs on the same > domain, using 3D, 2D or axisymmetric geometries in general. In that case, it > would be advantageous not to need to change every single assembly function > depending on what kind of geometry you have, just use a different FEValues > and > implicitly include that factor on the JxW(). This would be in line with the > generic programming approach of Deal.II for dimension-independent > implementations, using the <dim> templates.
How does GetDP do that? Is it a global flag that is set once? What if one wanted to solve a coupled problem where one PDE is axisymmetric but another one is fully 3d? > I think it was my big misunderstanding. I misinterpreted some points in this > <https://nam01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdealii.org%2Fdeveloper%2Fdoxygen%2Fdeal.II%2FclassMappingManifold_1_1InternalData.html&data=02%7C01%7CWolfgang.Bangerth%40colostate.edu%7C553194e059364721c87308d768ec7f3e%7Cafb58802ff7a4bb1ab21367ff2ecfc8b%7C0%7C0%7C637093237276121270&sdata=Eke2ZtsNex86tnv%2FVM2gjgYiOYLEFrsklc5GSRnd6Tc%3D&reserved=0> > > documentation page, but it was completely my mistake and I think the page is > well-written. I could not understand how to connect the manifold to the > Mapping, but now it is clear to me. Thank you very much for clarifying. > > > If you wanted to, that would > > make for a nice pull request to get used to contributing to the library! > ;-) ) > > Thank you for the invitation. I will try to see whether and what I can > contribute. OK, thank you in advance! We're looking forward to it ;-) Best W. -- ------------------------------------------------------------------------ Wolfgang Bangerth email: [email protected] www: http://www.math.colostate.edu/~bangerth/ -- 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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/dealii/3ed72780-cd27-d688-ae67-2debf08441a7%40colostate.edu.
