[Paraview] Undefined variables in Ensight Gold Format

[Olesen, Mark]

> Hi Martin,
> 
> In ASCII format the file is read correctly, but I think the nodes with
> undefined values are not displayed the way they should. In fact, I
> don't see
> how the 'undef' keyword changes the displayed data at all.

Looking through vtkEnSightGoldReader.cxx I can't see that anything spezial
is being done for undefined values, other than reading and skipping over the
extra line. The UndefPartialInternal class is defined, but its use is
appears restricted to addressing 'partial' values.

You'll have to ask a VTK expert about how or if undef values can be
propagated back to VTK.

> Unfortunately I don't know anything about VTK or how easy it is to add
> new
> cell types, so I can't help you there.

I'll keep waiting (and hoping) for an answer about polyhedral support.

/mark
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