Dear Yousef,
>From what I know what you can do is to mesh your model with
elements of second order, import the mesh into Getfem and assignt the
interpolation
to the order you desire. Hence, you'll have geometric transoformation of
order
two (for second order triangles it will be GT_PK(2,2)),
while approximation order as high as you desire, by setting
your_mesh_fem.set_finite_element(getfem::fem_descriptor('FEM_PK(2,3) ');
//for order 3 triangles, for example
But that's only if you think you can approximate your geometry well enough
by order two.
I hope this helps.
Best regards,
Andriy
On 10 April 2012 06:18, Yousef Elkurdi <[email protected]> wrote:
> Hello,
>
> I am a new for Getfem++ and I am happy with its results. I would
> appreciate your help in elaborating for me the method to generate
> higher order FEM for triangular elements after importing meshes from
> Gmsh. I use Gmsh to produce my meshes of triangular elements in 2D. I
> then use the import_mesh function to process it by getfem++. However,
> import_mesh does not process gmsh meshes of order 3 and above. Is
> there an alternative way to increase the order using Lagrange elements
> from within Getfem++ after importing the mesh from Gmsh?
>
> Thank you,
> Yousef
>
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