[Insight-users] "Stupid" question about SmartPointer

[Blezek, Daniel J (Research)]

I would suggest changing pMetric to:

    itk::ImageToImageMetric::Pointer pMetric;

So it is a SmartPointer as well.

-dan

-----Original Message-----
From: insight-users-bounces+blezek=crd.ge.com at itk.org
[mailto:insight-users-bounces+blezek=crd.ge.com at itk.org]On Behalf Of
Tao, Xiaodong (Research)
Sent: Wednesday, September 07, 2005 10:38 AM
To: Vincent Daanen; insight-users at itk.org
Subject: RE: [Insight-users] "Stupid" question about SmartPointer



Vincent,

Simply using 

   pMetric = mi_metric;

should be okay.

Xiaodong

-----Original Message-----
From: insight-users-bounces+taox=research.ge.com at itk.org
[mailto:insight-users-bounces+taox=research.ge.com at itk.org]On Behalf Of
Vincent Daanen
Sent: Wednesday, September 07, 2005 10:24 AM
To: insight-users at itk.org
Subject: [Insight-users] "Stupid" question about SmartPointer


Hi itk-users,

Currently writing a test program for volume registration, I'd like to 
choose dynamically the metric.

So I think to such a thing :
    itk::ImageToImageMetric *pMetric;

    swicth (metricChoice)
    {
       case MI :
          typedef 
itk::MutualInfomationimageToImageMetric<InternalImageType, 
InternalImageType> MetricType;
          MetricType::Pointer mi_metric = MetricType::New();
          mi_metric->....          //mi_metric intialisation
         
          pMetric = mi_metric->GetPointer();
         break;
      
        case NMI :
        ...
    }

My problem is that I'm afraid that mi_metric will be deleted at the end 
of the "case MI :" statement. am I right ?
If yes, is there a way to still use this way of programming (I'm sure it 
is possible but I do not find the way yet) !

Thanks for your help

 Vince         

-- 
Vincent Daanen, PhD
Research Engineer, Post-Doctoral Position
Laboratoire TIMC/IMAG (Univ. Joseph Fourier - CNRS UMR 5525)
Equipe GMCAO
Institut d'Ingénierie de l'Information de Santé (IN3S)
Faculté de Médecine - 38706 La Tronche cedex - France
Tel: +33 (0)4 56 52 00 54 - Fax: +33 (0)4 56 52 00 55
Vincent.Daanen at imag.fr

"Les problèmes ne peuvent être résolus par
ceux dont l'horizon se limite aux réalités 
quotidiennes, mais par ceux qui rêvent de 
choses qui n'ont jamais existées et qui se 
disent : Pourquoi Pas ?"

J-F Kennedy, 1963.

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