Dear Kamil, The CURVED section is describing the geometric curvature of the elements, and the PolyEvenlySpaced describes the point distribution used to represent this curvature. This is used because it is the point distribution produced by GMsh. This distribution is unrelated to the basis and point distribution used to represent the PDE solution within Nektar++. There is no way at present to represent the geometric curvature using a different point distribution. Kind regards, Chris On 29/09/14 08:54, Kamil Ozden wrote:
Dear All,
I asked the question below to check an important issue. This is a reminder mail. Is there any way to succeed to change /*TYPE="PolyEvenlySpaced" */to /*TYPE="GaussLobattoLegendre" */when converting the msh to xml via MeshConvert?
Regards, Kamil
On 23-09-2014 15:50, Kamil Ozden wrote:
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
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