[Dune] Local node numbering in Dune

[Oliver Sander]

Am 08.04.2015 um 16:50 schrieb Ganesh Diwan:
> Dear List
> 
> It appears that after reading the grid from a Gmsh format file inside Dune,
> the local dofs 2 and 3 i.e. node number 3 and 4 are swapped. This is inside
> dune-grid//dune/grid/io/file/gmshreader.hh
> 
> Is there a specific reason this is done? Is there a way to tell Dune to use
> the same node numbering as in Gmsh file and not to alter it?

Hi Ganesh,
Dune has one fixed numbering for the local node numbers of all reference elements
(see http://www.dune-project.org/doc/doxygen/dune-geometry-html/group___geometry_reference_elements.html )

These numberings differ from the ones used by gmsh, and hence the gmsh reader
needs to do some node swapping.

Best,
Oliver

> 
> Thankyou
> Ganesh
> 
> 
> 
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