Is thiis would be related to the normals of the surfaces?. I noticed that the 
normals is oriented outward. So i tried to invert the normals but i cannt find 
a way to do this.

I attach a figure below.

Best Regards
Jacob[cid:[email protected]]

Enviado desde Correo<https://go.microsoft.com/fwlink/?LinkId=550986> para 
Windows 10

De: Jacob Abdelfatah Ndioubnane<mailto:[email protected]>
Enviado: martes, 6 de febrero de 2018 22:36
Para: Christophe Geuzaine<mailto:[email protected]>; 
[email protected]<mailto:[email protected]>; 
[email protected]<mailto:[email protected]>; 
[email protected]<mailto:[email protected]>;
 G. D. McBain<mailto:[email protected]>
Asunto: Boolean Fragments. Créate 3d mesh from surfaces. Surface Loop creates 
aditional surfaces

Hi gmsh users:

I’m trying to créate a 3d mesh of a cube from a merged 3d surfaces to apply 
physical groups easily. I applied the booleanFragments operator, and it removes 
the aditional edges and vértices. However, when I créate a Surface loop, 
automatically generates aditional surfaces(when i go to tools;vissibility;tree 
appears 12 surfaces) it creates a , and the volume is referenced to the 
dupplicate surfaces. Im able to créate both 2d and 3d meses, but when i export 
into freefem as .mesh or .msh is not loaded correctly. Is there any way to 
solve this problem.  I attach the .geo script below and also the .brep surfaces 
and the generated .mesh and .msh meses.

// Gmsh project created on Tue Feb 06 20:13:28 2018
SetFactory("OpenCASCADE");

Merge "Inlet.brep";
Merge "Walls.brep";
Merge "Outlet.brep";

s() = Surface "*";
BooleanFragments{ Surface{s(0)}; Delete; }{ Surface{s({0:#s()-1})}; Delete; }//+




//+
Surface Loop(1) = {1, 5, 2, 3, 6, 4};

Volume(1) = {1};

Thank you very much in advance.

Best Regards
Jacob

Enviado desde Correo<https://go.microsoft.com/fwlink/?LinkId=550986> para 
Windows 10


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