[Paraview] Value Error: ColorArrayName - ParaView 3.98

[Andy Bauer]

I can't say for sure but my guess is that the slice you created doesn't
intersect your geometry and thus you have 0 points and you won't get any
point data to pseudo-color by. The other possibility is that the slice
filter hasn't been updated yet.

You can try something like
self.newSlice.GetDataInformation().GetNumberOfPoints() to see if any points
exist in the filter's output. Make sure to call
self.newSlice.UpdatePipeline() before doing that though.

Andy

On Sun, Feb 24, 2013 at 9:57 AM, Christian Klinge
<ck156626 at fh-muenster.de>wrote:

> Hello together,****
>
> ** **
>
> I wrote a short python script to create slices with local coordinate
> systems in ParaView. Sometimes then the script should create a new slide
> with defined parameter about scalar factor, origin and normal vector, the
> function returns a value error.  The message told me that the point data
> array cannot be found in the simulation. I tested the function with a lot
> of different parameters and recognizes that the function does not fail
> because of the variance of parameters. After repeating of calling the
> function with the same parameters, the function worked sometimes and it
> fails. So now I don’t know if it is a mistake of myself or it is a bug in
> ParaView. ****
>
> Maybe you can give me a short answer about it. Thank you all.****
>
> ** **
>
> I used ParaView on a Linux machine calling the pvbatch with the script as
> parameter from the shell. The script is append at the end of this mail.***
> *
>
> ** **
>
> Regards,****
>
> ** **
>
> Christian****
>
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