CGAL users discussion list

[Laurent Saboret <>]

Hi Michael,

The assertion below might occur when the Poisson reconstruction 
parameters are out of the recommended range.
See "Contouring parameters" paragraph at 
http://www.cgal.org/Manual/3.5/doc_html/cgal_manual/Surface_reconstruction_points_3/Chapter_main.html#Subsection_45.6.1

You may reconstruct your objects with various parameters with the 
examples provided with CGAL:
- poisson_reconstruction in examples/Surface_reconstruction_points_3 
(command line)
- Point_set_demo in demo/Surface_reconstruction_points_3 (Qt GUI)
I recommend you to try first with the default parameters, then with the 
parameters you used in your code.

Best regards,
Laurent Saboret


Michael Jeulin-L wrote:
> Hello everybody,
>
> Excuse me to disturb, but I have a problem with Poisson function and I cannot
> find the solution to fix the problem.
>
> From this example :
> http://www.cgal.org/Manual/3.5/doc_html/cgal_manual/Surface_reconstruction_points_3/Chapter_main.html
>
> I try to compute several object with a loop, for some of them all is working
> fine and I have the output I expect. However,  for others my application crash
> with the following error :
>
> CGAL error: precondition violation!
> Expression : tester(d)
> File : CGAL/Triangulation_3.h
> Line: 643
> Explanation:
> Refer to the bug-reporting instructions at http://www.cgal.org/bug_report.html
>
> when I try to compute, I think : "function.compute_implicit_function()"
> When I look in the file triangularization_3.h, it seems to be caused by a
> conflict with cell. How could I resolved the problem before my application bug
> ?
>
> Thank you very much for every answer.
>
>   

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