[Gmsh] Surface orientation

[Christophe Geuzaine]

> On 10 Jun 2020, at 11:14, Sabrina Zacarias <szacarias at ikp.tu-darmstadt.de> wrote:
> 
> Dear all,
> 
> I am working on a 2D simulation, and for post-processing my model I need all the surfaces to have the same orientation (does not matter if positive or negative), and in my current status it is not the case. Is there a way to a)  A global way of asking all surfaces to have the same orientation (without checking one by one)? And if it is not possible, then b) Check which surface has which orientation and change them individually?
> 

Surfaces are oriented w.r.t. the external curve loop. You can visualize the orientations with Tools->Geometry->Normals. If you cannot change the geometrical orientation but you want to reverse the mesh orientation, you can use the "ReverseMesh" command.

Christophe

> Thank you in advance for your suggestions,
> 
> Sabrina
> -- 
> Sabrina Zacarias
> Institut für Kernphysik
> Technische Universität Darmstadt
> S2|14 / office 319
> Schlossgartenstr. 9
> 
> 64289 Darmstadt
> 
> Office: +49 6151 16 23589
> 
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— 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science 
http://www.montefiore.ulg.ac.be/~geuzaine