dolfin team mailing list archive

[Anders Logg <logg@xxxxxxxxx>]

Peter Brune claims to have solved this by a small addition to the form
language that automatically expresses the curved elements as a mapping
and expands appropriately (and invisible to the user) those mappings
to yield a form that may then be assembled. The higher order geometry
is then expressed as a vector-field on the mesh.

Perhaps Peter can be pushed to polish up on his code and submit it.

--
Anders


On Wed, Mar 23, 2011 at 07:46:57PM +0000, Garth N. Wells wrote:
> We haven't really looked at this. It was discussed a while back, but no
> one has committed much time to it. We struggled to settle on an
> appropriate abstraction to push on with.
>
> Garth
>
> On 23/03/11 18:40, Douglas Arnold wrote:
> > What is the status of curved (e.g., isoparametric) elements in dolfin?
> > I gather they are not implemented in the main branch.   Has anyone
> > done anything with this can be used?  Is there any example code?
> > (For example, if you want to
> > solve the Poisson problem in a disc and get better than 2nd order
> > convergence, you need to do better than polygonal approximation of
> > the disc.)
> >
> >  -- Doug
> >
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