[Paraview] Plugin works - doesnt - works - doesnt - ...

[Christian Werner]

Like this I always get the error message.

This is what I wanted to say, the first time I start up ParaView (after 
rebooting) always failed.


Utkarsh Ayachit wrote:
> If you start paraview with "-dr" command line option everytime, do you
> still see the odd/even behavior?
>
> Utkarsh
>
> On Thu, Mar 18, 2010 at 2:20 PM, Christian Werner
> <christian.werner at rwth-aachen.de> wrote:
>   
>> Hi!
>>
>> I am experiencing strange behaviour in ParaView. Believe it or not, I have a
>> plugin that works every second time I start Paraview. I am doing the exactly
>> same thing with one specific image, all steps are absolutely identical,
>> still it works exactly only every second time.
>> If I have, say, an even Paraview Session, the plugin works any time. I can
>> use it as much as I like, change values, update it, remove it, use it again,
>> ... it just works.
>>
>> The other (odd) time I get:
>>
>>
>> Warning: In /opt/ParaView3.7/Servers/Filters/vtkTexturePainter.cxx, line 180
>>
>> vtkTexturePainter (0x1b64340): Failed to locate selected scalars. Will use
>> image scalars by default.
>>
>>
>> This holds for an older and the actual cvs version 3.7. When I compile the
>> plugin for 3.6 it works ALWAYS.
>>
>> I have difficulties in locating what the problem is. It seems that it is
>> because I am using ITK filters in this plugin (derived from
>> vtkSimpleImageToImageFilter) - all my VTK-only filters work without a
>> problem. Maybe these scalars get somehow messed up during the conversion
>> between ITK and VTK (every second time ...)
>>
>> I know this most probably won't help you developers find any bug but I am
>> asking because maybe this is somehow a known issue...? Something must have
>> changed since Paraview 3.6 here... Since it works for many image types it is
>> quite big, so I can't attach it to let you check this.
>>
>>
>> Best regards,
>> Christian
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