Interpolation of multigrid components

NGSolve
1

In this tutorial ( 3.1 Parabolic model problem — NGS-Py 6.2.2404-2-ge6a630133 documentation (ngsolve.org)) how I can access the values of gfut at specific time?
I think I need to interpolate between multigrid components of gfut, same as what is done in Draw function with multidim_interpolation=True. But I don’t know how to interpolate between multigrid components. It is appreciated if someone can help please.

Regards
HDA

2

Linear interpolation:

gfu_interp = GridFunction(fes)
gfu_interp.vec.data = s * gfu_old.vec + (1-s) * gfu.vec

you can just store the gfus for different timesteps in a list and then do this kind of interpolation for all intermediate times

3

Thanks a lot for your help!