Dear Dr. Moxey,

Thank you, this correction solved my problem. I've an additional question now.

When converting .msh file to .xml file by using a higher order element, MeshConvert directly converts the mesh with the TYPE="PolyEvenlySpaced" in <CURVED> section. How can I change this to TYPE="GaussLobattoLegendre" ?

Regards,
Kamil

On 22-09-2014 10:57, David Moxey wrote:

Hi Kamil,

This is a known bug that we still need to address. In the XML file there is a <CURVED> section which stores the curvature information. If you remove all lines that begin with <F ID="..." FACEID="..." ... </F> the mesh should convert and you should obtain a curved mesh.

What happens here is that gmsh supplies face-interior curvature, which presently is not reordered correctly, causing intersecting elements. However edge curvature will still work, and this will be blended onto the interior of the element by our basis functions. Whenever I get a chance I'll try to patch this issue as it's not really ideal!

Thanks,

Dave