[Gmsh] Surface mesh contains ugly elements

[Martin Vymazal]

Hello,

 I'm trying to generate a surface mesh of a bump given by a sine function. I 
tried 
1) to take the contour of the bump (defined by a spline) and extrude it
2) generate two contours (front and back), then create a line loop and a 
surface

In both cases, I have a bad mesh at the beginning and at the end of the bump. 
I'd prefer to have a fully unstructured mesh, but transfinite will do as well. 
Unfortunately neither of them works (see attached pictures).

Does anyone have an idea how to fix it?

Thank you.

  Martin Vymazal
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