> On 10 Jun 2020, at 11:14, Sabrina Zacarias <szacar...@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




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