[Gmsh] Third and fourth order tetrahedra?

[Christophe Geuzaine]

On 27/09/10 01:46, Rui Maciel wrote:
> The manual's "MSH ASCII file format" refers to 20-node third order tetrahedra
> and a 30-node fourth order tetrahedra.  Yet, I haven't figured out how to use
> Gmsh to generate meshes which included those elements nor are those elements
> covered in the manual's node ordering section.
>
> So, is it possible to generate meshes of these tetrahedra with Gmsh?  If so,

yes

> could anyone explain how it's done and what's the node ordering for these
> elements?
>

cf. Geo/MTetrahedron.h in the source code

>
> Thanks in advance,
> Rui Maciel
>
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-- 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science
http://www.montefiore.ulg.ac.be/~geuzaine