[Insight-users] Stopping Amoeba optimizer

[Lars Friedrich Lars]

Upsiiii, didn't perceive that. Thanks for the reply! Seems that I have to modify the vnl_amoeba class in order to get what I want ...
regards,
lars


-------- Original-Nachricht --------
> Datum: Fri, 3 Dec 2010 11:40:29 -0600
> Von: Karthik Krishnan <karthik.krishnan at kitware.com>
> An: Lars Friedrich Lars <lars-friedrich at gmx.net>
> CC: insight-users at itk.org
> Betreff: Re: [Insight-users] Stopping Amoeba optimizer

> That's not going to work. An internal instance of vnlamoebaFit is
> created as part of the optimization by the vnl_amoeba class.
> 
> On Fri, Dec 3, 2010 at 10:30 AM, Lars Friedrich Lars
> <lars-friedrich at gmx.net> wrote:
> > Hello,
> >
> > obviously ITK's Amoeba optimizer has no method like 'StopOptimization'.
> I had a look at the VNL implementation (vnl_amoeba.cxx) and recognized that
> there is an important loop in vnl_amoebaFit::amoeba():
> >
> > while (cnt < maxiter) {
> > ...
> > }
> >
> > So I tried to do the following in the iteration-callback instead of
> calling the non-existent method StopOptimization:
> >
> > // opt is an instance of itk::AmoebaOptimizer
> > opt->GetOptimizer()->set_max_iterations(0);
> >
> >
> > ... but it does not work.
> >
> > Maybe my day was too long - but why doesn't that work?
> >
> > Thanks!
> >
> > regards,
> > lars
> >
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