[Insight-developers] Stopping a level set filter mid-iteration?

[Miller, James V (Research)]

The AbortEvent mechanism for stopping any ImageToImageFilter should work.

filter->SetAbortGenerateData(true);

This flag is checked by the progress report mechanism.

(To re-run the filter, you may need to call ResetPipeline() on the filter to clear some internal flags about the state of the filter).

Jim


-----Original Message-----
From: insight-developers-bounces at itk.org
[mailto:insight-developers-bounces at itk.org]On Behalf Of Zachary Pincus
Sent: Tuesday, May 03, 2005 12:15 PM
To: insight-developers at itk.org
Subject: [Insight-developers] Stopping a level set filter mid-iteration?


Hello all,

Is there a "proper" way to stop a level set filter (or, more generally, 
a subclass of itk::FiniteDifferenceImageFilter) midway through its 
iterations, via an observer object?

Some optimizers have a StopOptimization() method for precisely this 
purpose, for example. Is there anything similar for 
FiniteDifferenceImageFilter subclasses? (I could just set MaxIterations 
to CurrentIterations from the observer object, I guess.)

If there isn't any such mechanism, should there be? I'll happily add 
such a method to FiniteDifferenceImageFilter (after, of course, filing 
a bug in the bugtracker) if people agree.

Zach Pincus

Department of Biochemistry and Program in Biomedical Informatics
Stanford University School of Medicine

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