> On 21 Jan 2019, at 10:13, Alessandro Vicini <[email protected]>
> wrote:
>
>
> With reference to the attached contour.geo file (including background.geo
> which is merged into it), gmsh does not show surface #14: the label is not
> shown, and also its graphic representation as "cross" is not visible.
The surface is very "thin", so no start/end point for the cross could be
computed. But the surface is correct: choose e.g. a solid or wirefreme
representation to visualize it. (You could open an issue on our gitlab so that
we remember to enhance the "cross" drawing code, e.g. to at least include one
point?).
> Moreover, when I generate the volume some of the surfaces are duplicated;
> this gives me troubles with my own pre-processing of the msh file, is there
> some way to avoid it? Thank you.
>
By default we ask OpenCASCADE to automatically fix the orientation of the
surfaces making up a volume defined "by hand". This can lead to duplicate
entities. In your case, just put at the end of your file
Geometry.OCCAutoFix = 0;
Surface Loop(2) = {6, 5, 4, 3, 2, 15, 14, 13, 12, 11, 10, 9, 16, 17, 18, 7};
Volume(1) = {2};
and you should be OK.
Christophe
> Alessandro
>
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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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