Dear all,
I have recently started using Gmsh and I've bumped into the following problem.
I hope there is someone who can help me sort it out.
As far as I know, the usual way of generating 2nd order tetrahedral elements is
to add a new degree of freedom in the middle of every edge of a 1st order
element. From what I see, in the case of the 2nd order meshes generated using
Gmsh, these middle nodes are moved from their default location, e.g. in order
to better approximate a curved boundary. I know this is a good feature, but the
FEM solver that I am using does not support such elements.
Is there a way to turn this feature off? What I mean is, is there a way to
generate "usual" meshes, with the middle nodes positioned exactly in the middle
of the edges?
Thanks!
Serban
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