[Gmsh] Adaptive meshing with background mesh

[Christophe Geuzaine]

On 14/09/10 19:44, Martin Vymazal wrote:
> Dear gmsh users,
>
> I created a simple geo file defining a unit circle. I would like to mesh
> this circle using a background mesh which contains function values of a
> scalar function 0.2*(1.0-x^2-y^2) + 0.05 on the same domain (unit
> circle). When I run gmsh, I get a lot of errors messages of the form
>
> 'No element found containing point (-0.245823,-0.932683,0)'
>
> The resulting mesh seems to be more or less uniform as if the background
> mesh was completely ignored. I attached my files to this email. Does
> anyone know what am I doing wrong? Thank you for any help.
>

Hi Martin - 2 things

* your background mesh should be defined geometrically on the same 
domain as the model (i.e. in your case in the z=0 plane)

* you should use Mesh.CharacteristicLengthExtendFromBoundary=0 for your 
dataset

See attached files.


> Best regards,
>
> Martin Vymazal
>
>
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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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