[Gmsh] What is the angle in ClassifySurfaces?

[Christophe Geuzaine]

> On 23 Feb 2020, at 18:36, Baltasar Rüchardt <baltasar.ruechardt at ds.mpg.de> wrote:
> 
> Dear gmsh group,
> 
> I have a problem understanding the first parameter of ClassifySurfaces. The documentation states it classifies the surfaces based on an angle in radians - but between what sides?
> 

The angle between triangles leading the detection of "sharp edges" in the surface. Setting the angle to Pi means "don't create sharp edges".

Christophe

> I would be happy if anyone can help me or point me to some literature which makes it obvious!
> 
> 
> 
> Thank you,
> 
> 
> 
> Baltasar
> 
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— 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science 
http://www.montefiore.ulg.ac.be/~geuzaine