[Gmsh] Meshing of internal surface loops in 3D

[Dmitrijs Ledkovs]

Privet Andrey =DDDD


You have defined only one volume, hence it meshed only it.

By adding

Volume(68)={66};

I managed to get the inner cube to get meshed as well (and in
tools->visibility you can select which volumes you want to see and I
can view both just the meshed inner cube, the mesh of the difference
between outer and inner as well as everything meshed).


2009/6/16 Andrey <spiritualworlds at mail.ru>:
> Dear GMSH community!
>
> I try to state my question.
>
> For this purpose I prepared a simple geometry in attached boundary.geo.
>
> The geometry is a surface in 3D space and consists of two rectangular boxes:
>
> External box of size 2x2x2 and internal box of size 1x1x1.
>
> The last one is fully located inside the first.
>
> If I pass this geometry to gmsh and ask it to make a 3D mesh of the volume:
>
> gmsh.exe -3 boundary.geo -o mesh.mesh -format mesh -order 1 -algo iso
> -optimize
>
> then I get a 3D-mesh of the space between 1-st and 2-nd boxes, the space
> inside small box remains empty. Changing the orientation of internal box
> surface I hope to get the space inside small box also meshed but fail. See
> attached meshed_boxes.png
>
> In other worlds: how to change boundary.geo to force gmsh to mesh interior
> space inside internal surface loop?
>
> Note, that the problem doesn’t exist for 2D meshes – changing the
> orientation of internal line loop it is possible to get interior place
> meshed or non-meshed.
>
> Best regards,
>
> Andrei
>
>
>
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>



-- 
With best regards


Dmitrijs Ledkovs (for short Dima),
Ледков Дмитрий Юрьевич