dolfin team mailing list archive

["Garth N. Wells" <gnw20@xxxxxxxxx>]

Anders Logg wrote:
> On Sun, Jul 13, 2008 at 10:44:39AM +0100, Garth N. Wells wrote:
> > Anders Logg wrote:
> > > On Sun, Jul 13, 2008 at 08:51:43AM +0100, Garth N. Wells wrote:
> > > > Anders Logg wrote:
> > > > > On Sat, Jul 12, 2008 at 10:28:55PM +0100, Garth N. Wells wrote:
> > > > > > Anders Logg wrote:
> > > > > > > Does this work? I was expecting to see a DG plot for the solution u in
> > > > > > > the mixed poisson demo.
> > > > > > Yes, it works. Open the .vtu file with Paraview and you'll see that the 
> > > > > > plot is cell-wise. You won't see it in the Viper plot.
> > > > > >
> > > > > > Garth
> > > > > I tried it now in Paraview, but it seems I can only get a 2D plot, or
> > > > > are you able to do "warp scalar"?
> > > > Looks like Paraview can't warp cell data. You can do
> > > >
> > > >    "Filters" -> "Alphabetical" -> "Cell Data to Point Data"
> > > >
> > > > and then use warp.
> > > >
> > > > Garth
> > > Yes, but that does some kind of projection/interpolation to piecewise
> > > linears. I'd like to plot the discontinuous solution and see that it
> > > is discontinuous.
> > You can see jumps in the contour colours from one cell to another. It 
> > looks like Paraview/VTK doesn't support warping of cell data.
> >
> > Garth
>
> ok. This would be a very nice feature to have in Viper. Ola?


It would also be good if Viper could check the type of function being 
plotted. I've implemented a check for VTK output for scalar elements, 
and I'll hopefully look at rank 1 functions soon. A number of demos were 
plotting and writing unsupported finite element types which leads to 
unpredictable results.

Garth


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