[Paraview-developers] Plugin based on vtkExtractBlock calls twice RequestData

[r holbrey]

Hi,

I had something like this at some point. I had a call in the filter 
code, something like

vtkSMProxy* proxy = .....
proxy->UpdateVTKObjects();

which I think was causing the filter to "auto-apply" ie run with default 
parameters. You might need to switch off "Auto-apply" too.

Richard


On 29/10/2014 16:49, Utkarsh Ayachit wrote:
> I don't follow. How do you mean by "second time when  actually does
> what is supposed to be". What's the input when it gets executed the
> first time? Try putting  a break point in the RequestData and see
> where its getting called. If you can share a simple plugin code that
> demonstrates the issue, that'd make it easier to identify the issue.
> In general, filters are not expected to execute twice unless needed.
>
> Utkarsh
>
> On Thu, Oct 23, 2014 at 10:12 AM, RIVERA, Orlando<Orlando.RIVERA at mtu.de>  wrote:
>>
>> Hi
>>
>>
>>
>> I  have a plugin  based on  vtkExtractBlock  and  when executed   calls
>> RequestData twice   , and it is the second time when  actually does  what is
>> supposed to be .   It work fine but I have no clue  why it is like that
>>
>>
>>
>> Any Ideas ?
>>
>>
>>
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