Re: [deal.II] Re: interpolate_to_different_mesh produces strange results

Thank you for clarification. You were right. I am using second order FE_Q elements. In principle I am solving Level set equation but I noticed that strange behavior of interpolate_to_different_mesh occurs only for small range of solutions. This can be problem with Paraview or my code. I will tr

Re: [deal.II] Re: interpolate_to_different_mesh produces strange results

Ah true. So, Krzysztof, if you're using higher order polynomials then you might wish to output with the number of subdivisions in build_patches() equal to the polynomial order. This will give a be

Re: [deal.II] Re: interpolate_to_different_mesh produces strange results

On 01/12/2017 06:45 AM, Jean-Paul Pelteret wrote: That said, it does seem a bit strange that the transfer of the solution from a coarse to fine grid renders those two local maxima on the upper part of the geometry. I don't think anything I've mentioned here could result in this artefact. I cou

[deal.II] Re: interpolate_to_different_mesh produces strange results

Hi Krzysztof, I don't have a direct comment on the result that you've shown here, but I think it would be useful if you mentioned what type and order of FE you are using here. One thing that you should be aware of is that Paraview does not interpolate data in the same way as deal.II does, so t