CGAL users discussion list

[Andrei Zaharescu <>]

Hi everyone,

I am trying to use the Polyhedron_incremental_builder_3, and in certain
situations I am getting errors of the following type:

CGAL::Polyhedron_incremental_builder_3<HDS>::
add_vertex_to_facet(): input error: disconnected facet complexes at
vertex 1331:
           involved facets are: 3891 3890 3606 (closed cycle) and.

What I find really weird is that in the body of the message there is no
other facet that should really go after the "and" and ".". (at the end
of the error message above). I looked in the source code as well, and it
should print  some facet number as well. 

So this tell me that there is a problem of sorts.

In my app, I am trying to stitch together a number of triangles that
form a Polyhedron_3. In some cases it works, whereas sometimes I receive
the above error.

Thanks in advance,
Andrei.