[Insight-users] Using image metric with identity transform.

[M.Staring at lumc.nl]

Hi Brano,

that sounds reasonable to me. Also the GetJacobian is overridden in the
IdentityTransform.

In this case we should also override the implementations of

SetFixedParameters
GetFixedParameters 

and GetParameters as you suggested.

ITK developers, was there any reason not to override these functions for
the IdentityTransform?

Marius

> -----Original Message-----
> From: insight-users-bounces at itk.org 
> [mailto:insight-users-bounces at itk.org] On Behalf Of Branislav Goga
> Sent: Friday, July 04, 2008 12:10 PM
> To: insight-users at itk.org
> Subject: Re: [Insight-users] Using image metric with identity 
> transform.
> 
> 
> Thank you for reply, I can see the point, this is exactly the 
> way how I do it right now. But I think this is not clear 
> design! Imagine you will proceed transforms of different type 
> at this point of your application, now you have to check the 
> type and switch. I think each class derived from 
> itk::Transform<> should fullfill this interface. Identity 
> transform can return itk::Array<> with 0 parameters, and 
> everything will be ok. Can anybody find better solution that 
> presented, please write it down. I`m very inquiring. 
> --
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