[Gmsh] VTK Element Type

[Christophe Geuzaine]

On 09 Sep 2011, at 12:45, Graeme Edwards wrote:

> Hi there,
> 
> Think I may have found a bug in GMSH. When exporting a mesh to a VTK and exporting quadratic tetrahedrons (or any form of quadratic element for that metter) the element type exported is wrong.
> 
> For instance a quadratic tetrahedron should have element type 24 but has element type 10 (with 10 being the element type for a linear tetrahedron).  The same problem is present when using quadratic triangles as well in that they have the element type of a linear triangle.
> 

Hi Graeme - Indeed; I've committed a small patch to correct this. However, I haven't checked if the node ordering is correct for these second order elements. Please let us know if any reordering (cf. getVertexVTK) is necessary.


> Regards
> 
> Graeme Edwards
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-- 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science 
http://www.montefiore.ulg.ac.be/~geuzaine