[Gmsh] question on GMSH

[Christophe Geuzaine]

zhu at enst.fr wrote:

> 
> hello,
> 
> Excuse me for sending you a second letter. I took it for granted that you
> were French.
> I am a student of ENST in Paris. I simulate my antenna with a rectangular
> reflecter limited under GMSH 1.50.4 windows.I have a problem: the normal
> vector of the reflecter remains always in the same direction even i
> changed the orientation of the "line loop" of my reflecter .Could you tell
> me how to do with it?
> thank you in avance.
> 

Use "Physical Surface{yy} = {- xx};" where xx is the number of your
surface, and yy the number of the physical entity.

See http://geuz.org/gmsh/doc/texinfo/gmsh_4.html#SEC26 for more info.

Best,

Christophe