[Gmsh] Restrict anisotropic field to a volume

[Lionel Wilhelm]

Dear Gmsher's,

I would like to mesh a "complex" with different mesh sizes. As the 
simulation for which the mesh is designed is multiphisic, I do need 
different mesh size according to the physic I want to resolve. For each 
isotropic part, I specify one constant MathEval field and one Restrict field 
on top of the MathEval field (with the volume id and its boundaries). This 
way I can successfully set a mesh size for each different part.

In order to take into account every field, I then take the Min of every 
Restrict field. This strategy is probably not the best but it works...

Because I would like to use anisotropic meshing, I tried to replace the 
MathEval by a MathEvalAniso but the Restrict operation does not seem to 
work.

Any hint to make isotropic and anisotropic meshes exist together ? What is 
the IntersectAniso field ? Could that be useful in this specific case?

Kindly,

Lionel Wilhelm
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