[Gmsh] Meshing with rectangular elements??

[Mikhail Artemiev]

Hi Muhammad!
As I know Gmsh can't build parallelepipedal grids (3D case of rectangular
ones) for arbitrary geometry. You have to use transfinite algorithm and
extrusions to get them. Your geometry can be redefined in the way I've
mentioned above, and you can get the desired mesh - have a look at the
manual/tutorials (not only the sections of recombining - but the sections
of Extrude command as well).
>From other hand, do you really need rectangular (parallelepipedal) mesh
exactly? Maybe it's possible to work with more general quadrilateral
(hexahedral) grid? Recently I was interested in working with FEM library
deal.II, that can treat only hexahedral meshes. So I wrote a converter from
Gmsh's mesh (tetrahedral) to hexahedral one. If you are interested, welcome
to http://code.google.com/p/tethex/wiki/Tethex
This tool hasn't been extensively tested, but for my models it works
perfectly well.


Cheers,
Mikhail




Dear Muhammad,

Try

Mesh.RecombineAll = 1;

Also, you may want to look up into the documentation the following two
options:

Mesh.Algorithm
Mesh.RecombinationAlgorithm


Regards
--
jeremy

On Tuesday 30 April 2013 13:40:51 Muhammad Umar Afzal wrote:
> Hi All,
> My problem requires to mesh geometry with rectangular elements (instead of
> tetrahedra elements). I am not sure how to do that. Any help regarding
will
> be highly appreciated. Geometry file is attached with email.
> Thanks
> Muhammad Umar Afzal
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.geuz.org/pipermail/gmsh/attachments/20130502/cef0b9fd/attachment.html>