Bartosz Sawicki wrote:
> After few weeks being out of fenics repositories, I'm trying to get my
> application back to live. And I have a question, if it is possible now
> to create Function without using complete form definition?
>
Yes, take a look at
/demo/pde/advection-diffusion
(there are both C++ and Python demos)
> Following code worked one month ago, but not any more:
>
> FiniteElement fe("MixedElement([FiniteElement('Discontinuous Lagrange',
> 'tetrahedron', 0), FiniteElement('Discontinuous Lagrange',
> 'tetrahedron', 0), FiniteElement('Discontinuous Lagrange',
> 'tetrahedron', 0)])");
> DofMap dofmap("FFC dof map for
> MixedElement([FiniteElement('Discontinuous Lagrange', 'tetrahedron', 0),
> FiniteElement('Discontinuous Lagrange', 'tetrahedron', 0),
> FiniteElement('Discontinuous Lagrange', 'tetrahedron', 0)])", mesh);
> FunctionSpace Vj(mesh, fe, dofmap);
> Function j( Vj );
>
The precompiled elements with signatures have been removed, which is why
the above will no longer work.
> Maybe I'm just thinking in the wrong way? Maybe it would be more natural
> for dolfin to create simple form file:
> vectorelement = VectorElement("Discontinuous Lagrange", "tetrahedron", 0)
> j = Function(vectorelement)
>
You can do something like this in the Python interface,
V = VectorFunctionSpace(mesh, "CG", 2)
velocity = Function(V);
Garth
> cheers,
> BArtek
>
>
>
>
>
>
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