CGAL users discussion list

[Zohar <>]

I'd like to modify a facet of a polyhedron, for example, triangulate it
(with/out inner vertices).
The incremental builder has an ABSOLUTE_INDEXING indexing mode, which allows
me to add elements to an existing polyhedron.

First, deleting the face.
poly::erase_facet seems to do the trick unless the face is a "ear" (on the
border), and then it would delete isolated vertices and border edges. But
the builder seems to work fine afterwards.
poly::make_hole supposes only to delete the face. But when I add a new face
to these vertices with the incremental builder, it has a problem with
looking up the border half edge:

Polyhedron_incremental_builder_3.h
CGAL_assertion( ! e->next()->opposite()->is_border());

How do you go about this?



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