[Paraview-developers] Usage of ColorAttributeType in Python Soprocessing Script

[Utkarsh Ayachit]

Thanks for pointing that out, Timo. I'll take a look.

Utkarsh

On Fri, Jun 5, 2015 at 5:15 AM Timo Oster <timo.oster at ovgu.de> wrote:

> Hi ParaView Developers,
>
> I have noticed a problem with using scripts generated with the
> coprocessing script exporter for rendering screen shots in-situ. The
> script generator generates code for coloring surfaces like so:
>
>     slice1Display.ColorArrayName = ['POINTS', 'temperature']
>
> This is the 'new' way of specifying the coloring.
>
> When I add this script to a coprocessor that is executed during a
> simulation, I will get an error that stems from this portion of code in
> Wrapping/Python/paraview/coprocessing.py (line 381):
>
>     input = rep.Input
>     input.UpdatePipeline(time) #make sure range is up-to-date
>     lut = rep.LookupTable
>     if rep.ColorAttributeType == 'POINT_DATA':
>         datainformation = input.GetPointDataInformation()
>     elif rep.ColorAttributeType == 'CELL_DATA':
>         datainformation = input.GetCellDataInformation()
>     else:
>         print 'something strange with color attribute type',
> rep.ColorAttributeType
>
> This portion of code still uses the 'old' way of using
> ColorAttributeType and ColorArrayName, and, on top of that, still uses
> POINT_DATA and CELL_DATA instead of POINTS and CELLS. The code following
> this also uses ColorArrayName in the old way, assuming it is not a list.
> If the usage of the old way here is intentional, then somewhere,
> something that is supposed to ensure backwards compatibility is not
> working correctly.
>
> The client I'm using for generating the script is the exact same
> ParaView version as the server evaluating it.
>
> I have changed the code in coprocessing.py to use the new way, and
> everything now seems to work correctly. However, there might be other
> instances in the code that were missed when ColorArrayName was updated.
> Perhaps somebody more experienced with the code might want to take a
> look at this?
>
> Regards,
>
> Timo
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