Remeshing only one of the volumes in mesh

[snow54]

Is it possible to remesh only one of the volumes in a 3D mesh with multiple volumes? I do not want to change the mesh on the interface between volumes.
I’m new to Mmg and have tried to find the answer but have had no luck. I’m using Gmsh. I want to remesh one of the volumes with anisotropic mesh but Gmsh does not seem to have such capability, so I’m looking for an alternative.

Thanks

[snow54]

I found the answer to my question in the post below.

Remesh only one subdomain

Dear MMG community, I have a test.msh file (attached to this post) containing a mesh with two subdomains (tagged 10 and 20) and I would like to remesh only the subdomain with label 10. As far as I understand, it is possible to do so using the MMG3D_Set_requiredTetrahedron function. But, first, I am not even capable of getting the reference label of each tetraheron from the loaded mesh. This is what I have tried in my testmmg.c file (attached to this post) to print the label of each tetrahedron…