[Dune] [Dune-Commit] dune-grid r7723 - trunk/dune/grid/io/file/vtk+

[Christian Engwer]

Hi Jö, hi Martin,

I experienced the problem aswell. The PDELab patch is a 1-liner.

I'm not sure that it is worth the effort. I don't think many people
are writing their own VTKFuntions.


Christian

On Sun, Nov 06, 2011 at 09:35:40PM +0100, Jö Fahlke wrote:
> Am Sun,  6. Nov 2011, 19:34:23 +0000 schrieb Martin Nolte:
> > I agree that a smooth transition would have been preferable. On the
> > other hand, I thought that the type of the VTKFunction should be
> > obtained from the VTKWriter and, hence, did not see the point in
> > providing this. Nevertheless, some evil template magic to provide
> > this can be constructed, if you like it.
> 
> The problem is that there are (at least) three VTKWriter variants: VTKWriter,
> VTKSequenceWriter, and SubSamplingVTKWriter.  When we construct a
> VTKFunctionAdapter in PDELab, it is not clear which VTKWriter variant it is
> going to be used with.  Extracting the base class as VTKWriter::Function and
> then using it with a SubsamplingVTKWriter is kind of quite messy: you have to
> know exactly which VTKWriter is the base to a particular SubSamplingVTKWriter,
> and that should actually be an implementation detail.
> 
> Moreover, Dune::VTKFunction<Grid> is listed in the Doxygen documentation
> module for the VTKWriter, so it looks quiet official.
> 
> > Could you provide me with a simple example for testing, e.g., some
> > extremely simple PDELab example (_not_ using SuperLU by any
> > accident)?
> 
> OK, I'll look for a good example.  But don't expect it today, I'm kind of busy
> with dune-geometry right now.
> 
> @Adrian: You noticed this first, do you maybe have a good example?
> 
> Bye,
> Jö.
> 
> -- 
> Jorrit (Jö) Fahlke, Interdisciplinary Center for Scientific Computing,
> Heidelberg University, Im Neuenheimer Feld 368, D-69120 Heidelberg
> Tel: +49 6221 54 8890 Fax: +49 6221 54 8884
> 
> If God had intended Man to Smoke, He would have set him on Fire.
> -- fortune



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