[Dune] [vtk] beginPointData() in vtuwriter.hh

[Oleh Krehel]

Dear Jö,

The problem with SelectComponentAdapter was that it inherits
from just FunctionIterface.
I wrote a version that inherits from GridFunctionInterface that solves the
problem.
I attached the file. It would be nice if you gave me a link or a tutorial of
how you
generate and apply patches.
I also tried to solve the problem with
SelectComponentAdapter+FunctionToGridFunctionAdapter, but it didn't work.

best regards,
Oleh


2011/3/29 Jö Fahlke <jorrit at jorrit.de>

> Am Tue, 29. Mar 2011, 11:08:37 +0200 schrieb Oleh Krehel:
> >    Thanks for the answer, but it still doesn't work well for me.
> > I have changed solution to 3 components. Paraview doesn't issue a
> warning,
> > but neither does it
> > show u initially, although 'Vectors="u"' is present. I attach the file,
> > maybe you could explain why this happens.
>
> Very little idea.  Maybe my guess that 'Vectors="u"' means that u is shown
> by
> default was wrong.  Maybe it 'Vectors="u"' _does_ mean that u is the
> default
> vector field, but ParaView will only show scalar fields initially.
>
> The VTK file format documentation can be found at
> <http://www.vtk.org/VTK/help/documentation.html>.  Here they say (page 14)
> that the "Vectors" attribute denotes the list of active vector fields, but
> I
> have very little idea what they mean by "active".
>
> > As for the Paraview bug, I tried to report it yesterday, but apparently I
> > have to pay a $5000 subscription fee to get support:)
>
> I can understand why you'd want to avoid that.
>
> >    About the adapter, I tried:
> >
> > vtkwriter.addVertexData(new
> > PDE::VTKGridFunctionAdapter<PDE::DiscreteGridFunction<GFS,U>
> > >(PDE::SelectComponentAdapter<PDE::VectorDiscreteGridFunction<GFS,U>
> > >(udgf,0),"u");
> >
> > This gives me:
> >
> > no type named ‘LocalFiniteElementType’ in ‘struct
> >
> Dune::PDELab::PowerCompositeGridFunctionSpaceTraits<Dune::GridView<Dune::DefaultLeafGridViewTraits<const
> > Dune::YaspGrid<2>, (Dune::PartitionIteratorType)4u> >,
> > Dune::PDELab::ISTLVectorBackend<1>,
> > Dune::PDELab::GridFunctionSpaceBlockwiseMapper, 3>’
> >
> > Could you tell me the proper way to use it?
>
> Hmm, that probably means the SelectComponentAdapter is outdated.  There was
> a
> change in the name of a member typedef from LocalFiniteElementType to
> FiniteElementType a while back and apparently SelectComponentAdapter is
> still
> using the old name.  You can try to fix that in your local copy of PDELab
> (and
> we'd be thankful if you send the patch to the PDELab-Mailinglist
> afterwards).
> Or you can wait until I have some time to fix it (about two to three
> weeks).
>
> Bye,
> Jö.
>
> --
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>
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