Hi all,

I have a question regarding a functionality which I don’t know if it is available in MMG or not.

After a mesh adaptation process one may want to interpolate a FEM function over the new created mesh. For this purpose, it would be computationally advantageous to know in advance the triangle index of the old mesh which contains a new created vertex in the new mesh. Is it possible to do that in MMG 2D?

If not: would it be computationally advantageous to take track of edge splitting-coarsening-swapping and so modify such map for each of this operation inside MMG, with respect to usual algorithms to find the triangle containing a vertex? If yes, any tips on how to do that?

Thanks in advance for any help.

ps. I refer to P1 FEM functions