[Gmsh] Bug open cascade

[Christophe Geuzaine]

We are working on it - it's not perfect yet, but the latest nightly snapshot works on your test-case. Give it a try?

(The issue is linked to the way OpenCASCADE deals with e.g. spheres, which involves singular parametrizations.)


> On 25 Sep 2017, at 09:50, Pierre K <pierre.kerfriden at gmail.com> wrote:
> 
> Hi, this "as-short-as-it-gets" code produces an erroneous mesh. The bug gets worse as the cutting plane gets closer to the equator of the sphere. Is this fixable?
> 
> 
> SetFactory("OpenCASCADE"); 
> Box(2) = {1, -1, -1, 2, 2, 2}; 
> Sphere(3) = {0.95,0.2,0.2,0.7, -Pi/2,Pi/2, 2*Pi};
> BooleanDifference{ Volume{3}; Delete; }{ Volume{2}; Delete; }
> 
> 
> All the best
> 
> Pierre
> 
> ---------------------------------
> Dr. Pierre KERFRIDEN, Senior Lecturer, Cardiff University, UK
> https://www.cardiff.ac.uk/people/view/364400-kerfriden-pierre
> Too brief? Here's why! http://emailcharter.org
> 
> 
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-- 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science 
http://www.montefiore.ulg.ac.be/~geuzaine

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