dolfin team mailing list archive

["Garth N. Wells" <g.n.wells@xxxxxxxxxx>]

On Fri, 2005-12-16 at 10:12 -0600, Anders Logg wrote:
> Yes, it would require some major work in quite a few places, FIAT,
> FFC, DOLFIN, and it's not on my TODO list for the next couple of
> months at least.
> 

Is the plan to support arbitrary order isoparametric mappings, or just a
limited number (linear and quadratic only, for example)? 

Garth 


> /Anders
> 
> 
> On Fri, Dec 16, 2005 at 05:05:23PM +0100, Luca Antiga wrote:
> > Hi guys, thanks for the prompt reply.
> > In fact, I was referring to curved elements (sorry for not being 100% clear),
> > but nevertheless
> > I found the Poisson example very informative. A really nice way to go.
> > So, if I understand correctly, implementing curved tets would be on the same
> > level as implementing
> > bricks. Am I right?
> > 
> > Luca
> > 
> > On 12/16/05, Anders Logg <logg@xxxxxxxxx> wrote:
> > 
> >     Right.
> > 
> >     /Anders
> > 
> >     On Fri, Dec 16, 2005 at 09:49:25AM -0600, Robert C Kirby wrote:
> > 
> >     > No -- I think higher order geometry is what is meant - curved elements.
> >     >  We don't do those.
> >     >
> >     > On Dec 16, 2005, at 9:47 AM, Anders Logg wrote:
> >     >
> >     > >As Garth points out, we don't support prisms (yet).
> >     > >
> >     > >For higher order elements, take a look at the example in
> >     > >
> >     > >    src/demo/fem/convergence/
> >     > >
> >     > >which solves Poisson's equation in 2D and 3D with order ranging
> >     > >from q = 1 to q = 5.
> >     > >
> >     > >The only thing you need to change to do higher order elements is a
> >     > >number
> >     > >(and then recompile with FFC).
> >     > >
> >     > >/Anders
> >     > >
> >     > >
> >     > >On Fri, Dec 16, 2005 at 10:45:07AM +0100, Luca Antiga wrote:
> >     > >>Dear Dolfin developers,
> >     > >>  I've looked into Dolfin today and it's a really impressive piece of
> >     > >>software.
> >     > >>Congratulations for your work.
> >     > >>Just a curiosity: how hard it would be to code different element
> >     > >>types (e.g.
> >     > >>quadratic tetrahedra or prisms) into Dolfin?
> >     > >>Thanks a lot
> >     > >>
> >     > >>Luca
> >     > >>
> >     > >>
> >     > >>
> >     > >
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> >     >
> >     >
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> >     >
> > 
> > 
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> > 
> > 
> 
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> 
> 
-- 
Dr. Garth N. Wells
Faculty of Civil Engineering and Geosciences
Delft University of Technology
Stevinweg 1
2628 CN Delft
The Netherlands

tel.     +31 15 278 7922
fax.     +31 15 278 6383
e-mail   g.n.wells@xxxxxxxxxx
url      http://www.mechanics.citg.tudelft.nl/~garth