CGAL users discussion list

[Sebastien Loriot <>]

Could you share the mesh?

Best,

Sebastien.

On 7/19/23 09:15, Giles Puckett wrote:
> Thanks Sebastien,
>
> Unfortunately remove_self_intersections returns false (and the mesh is 
> unchanged, still returning the same self intersections as before). This 
> is with CGAL 5.5.1, if anything has changed since.
>
> G.
>
> On 19/07/2023 3:54 pm, Sebastien Loriot ( via 
> cgal-discuss Mailing List) wrote:
> > Hello,
> >
> > you can try 
> > CGAL::Polygon_mesh_processing::experimental::remove_self_intersections()
> > provided by CGAL/Polygon_mesh_processing/repair_self_intersections.h.
> >
> > If you only have local self-intersection, it usually works very well.
> >
> > For listing all intersecting triangles use `self_intersection()`
> > https://doc.cgal.org/latest/Polygon_mesh_processing/group__PMP__intersection__grp.html#ga6c5bed399d14ddbba820ce50d3145712
> >
> > HTH,
> >
> > Sebastien.
> >
> > On 7/19/23 07:04, Giles Puckett wrote:
> > > Hello all,
> > > I have a triangle mesh that contains self-intersections 
> > > (PMP::does_self_intersect returns true) but it is otherwise manifold. 
> > > Is there an easy way to repair these meshes?
> > >
> > > If not, would it work to enumerate all the self-intersecting 
> > > triangles, delete them from the mesh, and fill the holes left behind? 
> > > Is there a good way to do this, or would some other method work better?
> > >
> > > I suspect that the affected area is very small, so gross physical 
> > > distortion is unlikely to result.