Hi Sara,

See the documentation here<http://gmsh.info/doc/texinfo/gmsh.html#Lines> : 
Circle is used to generate arcs strictly smaller than Pi radians. It might have 
cause you issues. Also, have a look at the enclosed file and let me know if it 
helped.

Guillaume DILASSER
Doctorant SACM / LEAS
CEA - Centre de Saclay - Bât.123 - PC 319c
91191 Gif sur Yvette Cedex - France -

[email protected]<mailto:[email protected]>



De : gmsh [mailto:[email protected]] De la part de Sara 
R. Martin
Envoyé : mercredi 9 novembre 2016 06:09
À : [email protected]
Objet : [Gmsh] Mesh of a disc removing the center point


Hi,



I have a problem when generating the mesh of a disc of radius 0.1. I get 
elements which are only lines or to joined lines or triangles and i would 
rather like to have all triangles. I did meshes of rectangles before and I had 
not problem for that... Could you tell me if there is any parameter I have to 
set to obtain meshes with only triangles?



To generate a disc with Gmsh I use 2 Circle arc which require to define the 
center point of the circle (0,0,0) and 2 points: p1 = (0.1, 0, 0) and p2 = 
(-0,1, 0, 0). I create then the first arc from p1 to p2 and then the arc from 
p2 to p1.



Thank you.



Sara

Attachment: MeshDisk.geo
Description: MeshDisk.geo

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