CGAL users discussion list

["Sebastien Loriot (GeometryFactory)" <>]

On 03/19/2012 04:13 PM, mriem wrote:
> Hi I am using CGAL for producing a Constrained triangulation in 2d. At
> some point in my program, I need to remove vertices. I use
> dt.remove(fh->vertex(li)) Most of the times it works, but there are some
> cases where apparently the triangulation becomes invalid.
Do you mean that triangulion.is_valid() returns false?
Are you sure that the face_handle you are using is valid (i.e. points to 
a face that is in the triangulation)?


Sebastien.

> Attached are
> two images. The first shows a mesh. I want to remove the vertice inside
> green triangle (which is not part of the mesh, only the others are) When
> I remove the vertex 9, the triangulation becomes invalid Note that
> vertice 82 is inside a triangle ?? this should not happen. Can anyone
> help? Thanks Miguel
> ------------------------------------------------------------------------
> View this message in context: Constraned Triangulation 2 problem with
> remove vertice
> <http://cgal-discuss.949826.n4.nabble.com/Constraned-Triangulation-2-problem-with-remove-vertice-tp4485130p4485130.html>
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