PMP::clip() does not modify the clipping mesh

[stla]

Hello,

I clipped a cube to the volume bounded by a sphere:

It is said in the doc that the clipping mesh (the sphere) is modified when doing PMP::clip(). However it is not modified (this is the sphere at right).

[pentacular]

It's probably something wrong in the code you've written.

[stla]

Do you really think I didn't envisage this possibility before posting? ^^

[sloriot]

It is not modified if you pass the option do_not_modify(true)

[stla]

It is false (sure: if it were true, I couldn't clip to a volume).

[sloriot]

Do you have a minimal example, or at least the call to CGAL's function?

[stla]

I do:

  ...
  const bool clipping = PMP::clip(
    mesh, clipper, PMP::parameters::clip_volume(true),
    PMP::parameters::clip_volume(true).do_not_modify(false)
  );
  mesh.collect_garbage();
  clipper.collect_garbage();
  ...

Looks correct? I can prepare a MWE if you want.

[sloriot]

Just to be sure we are on the same thing here: the sphere being modified means that the sphere is corefined so the geometry of the clipper does not change. Only its faces are split and re-triangulated.

[stla]

Ah indeed, I was expecting a change of the geometry. I will check more carefully.

[stla]

You're right, as usual. The mesh is modified.