[vtkusers] vtkAppendPolyData woes

[Gerard Gorman]

Thanks! That was exactly the problem. I had missed the importance of 
maintaining a cell (VTK_VERTEX) when working with point data.

Thanks again for you help,
Gerard.

Prabhu Ramachandran wrote:
>>>>>>"GG" == Gerard Gorman <g.gorman at imperial.ac.uk> writes:
> 
> 
>     GG> Prabhu Ramachandran wrote:
>     >> Perhaps adding an appendF.Update() before you get the output
>     >> will help.
> 
>     GG> I'm afraid that it made no difference (see the change
>     GG> below). For the curious I put two example polydata files in
>     GG> at:
>     GG> http://amcg.ese.ic.ac.uk/~gormo/sampleVTKFiles/tracers80.vtp
>     GG> http://amcg.ese.ic.ac.uk/~gormo/sampleVTKFiles/tracers81.vtp
>     GG> ...so just use the below script as ./test.py tracers80.vtp
>     GG> tracers80.vtp
> 
>>From what I can tell its your data thats incorrect.  You need to
> specify the vertices.  Without the vertices there is no "polydata",
> only points.  For each point add a vertex and AFAIK it should work.
> Something like so:
> 
> VERTICES 100 200
> 1 0
> 1 1
> 1 2
> ...
> 1 99
> 
> 
> cheers,
> prabhu
> 


-- 
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Gerard Gorman (PhD Student)
Applied Modelling and Computation Group
Earth Science and Engineering
Imperial College
Prince Consort Road		Tel. 00 44 +207 594 9323
London SW7 2BP			Fax. 00 44 +207 594 9321
U.K.                    o~o A good slogan beats a good solution.
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