How does MMG to manage the Reference Ids?
I process the same mesh, only changing the reference ids, and I cannot understand the results obtained. I attach one case giving me problems.
The first case the tetrahedra have as Id 3, and the second case 4. The resulting mesh in one case has tetrahedra with Id different of 3 all of them (so I understand no tetrahedra inside the level-set region) and the second case has some tetrahedra with Id 4 (corresponding with the tetrahedra inside the level-set).
Additionlly, what does represent the others Id, if all the original tetrahedra belong to the same group?
I am using mmg3d with isosurface:
mmg3d_O3 -ls out_step=0.mesh
Thanks a lot