dolfin team mailing list archive

[Anders Logg <logg@xxxxxxxxx>]

On Wed, Feb 13, 2008 at 10:43:40PM +0100, Kristian Oelgaard wrote:
> Quoting Dag Lindbo <dag@xxxxxxxxxx>:
> 
> > >
> > > Why do you need to evaluate functions at arbitrary points?
> > >
> > > I can understand it's nice to be able to do this, but in many cases
> > > there are other solutions (which are much more efficient).
> > >
> > 
> > I think there is general interest in being able to compute line integrals
> > over a computed solution. It is natural to use the finite elements as
> > interpolant to get values at quadrature points. Any thoughts?
> 
> If you just want the values at quadrature points, you can project the solution
> (Function) onto a QuadratureElement.
> 
> Kristian

I guess the quadrature points are given by some other entity (like an
edge) intersecting a cell so they wouldn't fit.

-- 
Anders