[Paraview] BUG?: Paraview 3.14.1 Linux 64-bit --> can not call GradientsOfUnstructuredDataSet through python script

[Andy Bauer]

I ran your script after creating a source and using the python calculator
to create the velocity and pressure fields and didn't have any problems
with 3.14.1. If you can figure out a way to reliably reproduce the problem
I can try to fix it.

I've never seen the QPainter warning. Did you build ParaView yourself or
use an installer?

On Thu, Aug 9, 2012 at 11:26 AM, Janusz Michalik <janusz.michalik at epfl.ch>wrote:

>
>   Its really strange it took me several tries of doing the same thing to
> get the error. Just to make sure its not any typo, I used python trace to
> get the script I attached to this e-mail (test.py). As I understand it
> should run no problem in the python shell. I highlight the data set
> (STSone) in the pipeline and ran the script and still get
>
>   Traceback (most recent call last):
>
> File "<string>", line 6, in <module>
>
> TypeError: 'GradientOfUnstructuredDataSet' object is not callable
>
>
> On a side note I'm getting this:
>
> QPainter::begin: Paint device returned engine == 0, type: 2
>
> QPainter::setRenderHint: Painter must be active to set rendering hints
>
> QPainter::setBrush: Painter not active
>
> QPainter::end: Painter not active, aborted
> What is this error? It pops up periodically...
>
> --
> Janusz
>
>
>
>
>
>
>  ------------------------------
> *From:* Andy Bauer [andy.bauer at kitware.com]
> *Sent:* August 9, 2012 16:54
> *To:* Janusz Michalik
> *Cc:* Dray, Colan; paraview at paraview.org
>
> *Subject:* Re: [Paraview] BUG?: Paraview 3.14.1 Linux 64-bit --> can not
> call GradientsOfUnstructuredDataSet through python script
>
>  I'm able to get the GradientOfUnstructuredDataSet filter through the
> GUI's python interpretor so I'm not sure what's causing your problem. Could
> you share the script?
>
> I am able to cause problems if I don't have an active filter/source when
> creating the GradientOfUnstructuredDataSet filter since it complains, as it
> should, that there isn't a proper input for it.
>
> Andy
>
> On Wed, Aug 8, 2012 at 8:23 AM, Janusz Michalik <janusz.michalik at epfl.ch>wrote:
>
>>  Sorry, in the e-mail I misspelled it. I do use:
>>
>> GradientOfUnstructuredDataSet()
>>
>> as the error indicates; it is not related to the spelling. After I sent
>> out the first e-mail I tried Paraview 3.14.0 Linux 64-bit and it works, so
>> for what I need this is fine. I think it is a bug that needs to be fixed in
>> 3.14.1, if it hasn't already been fixed in the developers version.
>>
>>  ------------------------------
>> *From:* Dray, Colan [Colan.Dray at alcoa.com]
>> *Sent:* August 8, 2012 14:16
>> *To:* Janusz Michalik
>> *Subject:* RE: [Paraview] BUG?: Paraview 3.14.1 Linux 64-bit --> can not
>> call GradientsOfUnstructuredDataSet through python script
>>
>>   GradientOfUnstructuredDataSet
>>
>> GradientsOfUnstructuredDatSet()
>>
>>
>>
>> There’s a spelling discrepancy between the two: missing “A” in data, and
>> extra “S” after gradient. Could that be the issue?
>>
>>
>>
>>
>>
>> -Colan
>>
>>
>>
>> *From:* paraview-bounces at paraview.org [mailto:
>> paraview-bounces at paraview.org] *On Behalf Of *Janusz Michalik
>> *Sent:* Wednesday, August 08, 2012 5:35 AM
>> *To:* paraview at paraview.org
>> *Subject:* Re: [Paraview] BUG?: Paraview 3.14.1 Linux 64-bit --> can not
>> call GradientsOfUnstructuredDataSet through python script
>>
>>
>>
>> Hi all,
>>
>> I switched from Paraview 3.12.0 to 3.14.1 Linux 64-bit and have the
>> following error:
>>
>> Traceback (most recent call last):
>>
>> File "<string>", line 6, in <module>
>>
>> TypeError: 'GradientOfUnstructuredDataSet' object is not callable
>>
>>
>> when I try to take the gradients of the velocity by calling:
>> GradientsOfUnstructuredDatSet(). This worked in 3.12.0, did something
>> change? Is there a quick fix for this? Please let me know. I would go back
>> to the old version except that the numpy eig functions return 0+0i for any
>> matrix I throw at it (so another bug which I assume won't be fixed since
>> its an older version).
>>
>> Best,
>> Janusz
>>
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