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[Simon Perkins <>]

Glad I could help. The test case is unusual: I was performing refinement of more structured environments, but needed a pathological test case to prove a point. You're welcome to use the case in your test suite.


Thanks for your time.
  Simon

On Tue, Mar 23, 2010 at 1:33 PM, Laurent Rineau (GeometryFactory) <> wrote:

On Tuesday 23 March 2010 11:04:35 Simon Perkins wrote:
> Hi Laurent
>
> I've added the assertion but the problem still occurs. Here is the code. It
> produces the two different precondition errors on both CGAL 3.5.1 and 3.6.
> The call to refine_Delaunay_mesh_2 is on line 62 of trigen.cpp.

Congratulation! You have found a bug in Mesh_2! Your data set is quite
strange, because you insert in a cdt all finite edges of another one. That
uncommon data set triggers a bug in the detection of clusters of constrained
edges.

I will send you a fix of include/CGAL/Mesh_2/Clusters.h before the end of the
week.

Do you agree that your (random) data set is inserted in the CGAL test suite?
Being uncommon, it is interesting!

--

Laurent Rineau, PhD
R&D Engineer at GeometryFactory           http://www.geometryfactory.com/
Release Manager of the CGAL Project       http://www.cgal.org/

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