fix remove physical group without geo internals (!461) · Merge requests · gmsh / gmsh

Loading a ".msh" then removing physical group from the API fails.

gmsh.open("mesh.msh")
groups = gmsh.model.get_physical_group(1)
gmsh.model.remove_physical_groups(groups)

Gmsh complains that the groups do not exist.

I tried adding a gmsh.model.geo.synchronize() without success.

This commit fix my use case but the call to GEO_Internals should probably be avoided completely in this case.

I'm not sure if the return value should be true (success) or false (model not modified).

fix remove physical group without geo internals