Hi Lawrence, thanks for the quick reply, but I can't find sub triangulate in the documentation. It's indeed a 2d function. To be more precise I attached a minimal example of what I want in fenics language. All the best, Tobias ________________________________ Von: firedrake-bounces@imperial.ac.uk <firedrake-bounces@imperial.ac.uk> im Auftrag von Lawrence Mitchell <lawrence.mitchell@imperial.ac.uk> Gesendet: Donnerstag, 20. Oktober 2016 23:12 An: firedrake Betreff: Re: [firedrake] visualising 2nd order element On 20 Oct 2016, at 21:24, Schwedes, Tobias <t.schwedes14@imperial.ac.uk<mailto:t.schwedes14@imperial.ac.uk>> wrote: Hi all, I would like to visualize the result of simulations based on 2nd order elements. However, using plot(u) only gives a linear interpolation. I know this from fenics and the workaround is to interpolate u onto a finer mesh and plot the outcome then. Does that work in firedrake, and if so how do I do it? Thanks a lot in advance for your help! plot of a 2d function will sub triangulate and do the appropriate evaluation. So you can just do that. See the docstring (particularly the nun_sample_points argument). In 1d it uses cubic brazier curves... Cheers, Lawrence All the best, Tobias _______________________________________________ firedrake mailing list firedrake@imperial.ac.uk<mailto:firedrake@imperial.ac.uk> https://mailman.ic.ac.uk/mailman/listinfo/firedrake