Dear Krishna, There is also this long-standing pull request https://github.com/dealii/dealii/pull/8196 <https://github.com/dealii/dealii/pull/8196> that hooks into the Verdict library to do mesh quality assessment. One day, hopefully in the not too distant future, I’ll get back to integrating it into the deal.II library. But you could always extract the salient portions of that code for your purposes.
Best, Jean-Paul > On 15 Jan 2020, at 18:31, Martin Kronbichler <kronbichler.mar...@gmail.com> > wrote: > > Dear Krishna, > > We have recently added one such function, namely > GridTools::compute_aspect_ratio_of_cells(), > > https://dealii.org/developer/doxygen/deal.II/namespaceGridTools.html#a2a9d8801d952ea8afa9ec1573229a329 > > <https://dealii.org/developer/doxygen/deal.II/namespaceGridTools.html#a2a9d8801d952ea8afa9ec1573229a329> > Best, > Martin > On 15.01.20 18:26, Krishnakumar Gopalakrishnan wrote: >> In the results/extension section of Step-6 as well in Step-49, there is a >> great deal of discussion about obtaining good meshes are for a problem, with >> the caveat that this is a highly specialized topic. Step-49 is full of >> warnings about things that can go wrong when applying certain >> transformations, and it seems to implant doubts in my mind that my meshes >> are never going to be correct :) >> >> >> Given this, in the spirit of the Kelly Indicator for solution errors in a >> cell, is there a similar single-metric for the quality/goodness of each cell >> in a mesh? Maybe there is something based on the smallest internal angle (to >> prevent slivers, for Jacobian of the mapping to be invertible, to prevent >> inverted cells etc). >> >> >> After all, error estimation is a complicated topic. nevertheless the Kelly >> Indicator seems to do a reasonable job for quite a few equations. If >> currently not implemented in Deal.II, is there any journal article that >> discusses research in this direction? >> >> >> >> Krishna >> >> -- >> The deal.II project is located at http://www.dealii.org/ >> <http://www.dealii.org/> >> For mailing list/forum options, see >> https://groups.google.com/d/forum/dealii?hl=en >> <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 >> <mailto:dealii+unsubscr...@googlegroups.com>. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/dealii/3602a53a-a98a-4a5c-a512-a6d179c8dcec%40googlegroups.com >> >> <https://groups.google.com/d/msgid/dealii/3602a53a-a98a-4a5c-a512-a6d179c8dcec%40googlegroups.com?utm_medium=email&utm_source=footer>. > > > -- > The deal.II project is located at http://www.dealii.org/ > <http://www.dealii.org/> > For mailing list/forum options, see > https://groups.google.com/d/forum/dealii?hl=en > <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 > <mailto:dealii+unsubscr...@googlegroups.com>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/dealii/36574d22-6fa9-e153-637a-2641e798756d%40gmail.com > > <https://groups.google.com/d/msgid/dealii/36574d22-6fa9-e153-637a-2641e798756d%40gmail.com?utm_medium=email&utm_source=footer>. -- 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 on the web visit https://groups.google.com/d/msgid/dealii/2138DAC3-68CF-46D7-9E2F-12DA93702150%40gmail.com.
