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Re: [cgal-discuss] Mean curvature flow skeleton


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  • From: "Sebastien Loriot (GeometryFactory)" <>
  • To:
  • Subject: Re: [cgal-discuss] Mean curvature flow skeleton
  • Date: Mon, 28 Jan 2019 09:28:52 +0100
  • Authentication-results: mail2-smtp-roc.national.inria.fr; spf=None ; spf=Pass ; spf=None
  • Ironport-phdr: 9a23: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

I guess this comes from the fact at some point in the processing of
simplices of the mesh some maps/hash-maps are used based on the
memory address of the simplex, making it non-deterministic.
Right now I don't see any reason why we can't make it deterministic
but it requires some time to update the code to used indices rather
than address.

Sebastien.

On 01/24/2019 10:19 PM, Annie-Pier L. wrote:
Hi everybody,

I'm using the function extract_mean_curvature_flow_skeleton and I was
wondering why the resulting skeleton is always a bit different when I apply
the function on the same mesh. Is there a way to always obtain the same
skeleton with the same mesh?

Thank you!



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