[Gmsh] Meshing the volume between a model and a surrouding cuboid

[Mike B.]

Dear Gmsh users,

I'm rephrasing a previous question, hopefully to make it clearer what I'm after:

I have an object (given as an STL file) and which I load it into Gmsh with Merge 'obj.stl'. I then define in Gmsh a control volume ( a cuboid ) around the model. 

Now, I want to mesh the volume between the cuboid and the model. How do I do that?. Also, I'd like to have a finer mesh close to the model surface and a coarser one away from it (use the `Attractor' field?). 

Would appreciate help how to achieve these two.

Thanks,
Mike.



      
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