[Insight-users] how can I tell the pipeline that my filter needs to be re-executed?

[Luis Ibanez]

Hi Jochen,

You should call the "Modified()" method.

One possibility is that inside your GenerateData() method,
you could call, at the end, the Modified() method.



    Regards,


        Luis


-------------------------
Neuhaus Jochen wrote:
> Hi all,
> 
> I wrote my own filter class (derived from itk::ProcessObject) that
> processes my own data objects (derived from itk::DataObject). My filter
> is a source, it does not have any other data objects as input. 
> When I call myFilter->GetOutput()->Update() the first time,
> GenerateData() is executed, as expected. If I call it a second time, the
> update mechanism thinks that everything is unchanged and doesn't call
> GenerateData() again. But in my special case, I need my filter to always
> be modified and therefore always execute GenerateData() again. There is
> no explicit state change in my filter objects, it is more that the time
> has changed on the second call and GenerateData() will produce a
> different output at a later time.
> 
> I'm trying to understand the pipeline update process, but I'm a bit lost
> to which method I should change. Any hints for me? 
> 
> Best regards, 
>  Jochen Neuhaus
> ---
> Jochen Neuhaus
> Deutsches Krebsforschungszentrum
> Medizinische und Biologische Informatik
> Im Neuenheimer Feld 280
> D-69120 Heidelberg
> Tel.: +49 (0) 6221 / 42-2329
> Fax: +49 (0) 6221 / 42-2345
> http://www.dkfz-heidelberg.de/de/mbi/people/Jochen_Neuhaus.html
> 
> _______________________________________________
> Insight-users mailing list
> Insight-users at itk.org
> http://www.itk.org/mailman/listinfo/insight-users
>