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 > > > > _______________________________________________ > > Mailing list: https://launchpad.net/~dolfin > > Post to : [email protected] > > Unsubscribe : https://launchpad.net/~dolfin > > More help : https://help.launchpad.net/ListHelp > > _______________________________________________ > Mailing list: https://launchpad.net/~dolfin > Post to : [email protected] > Unsubscribe : https://launchpad.net/~dolfin > More help : https://help.launchpad.net/ListHelp _______________________________________________ Mailing list: https://launchpad.net/~dolfin Post to : [email protected] Unsubscribe : https://launchpad.net/~dolfin More help : https://help.launchpad.net/ListHelp
