[IGSTK-Developers] Accessing ITK image

[Julien Jomier]

I don't think adding a private shared class will improve the current 
design. The current implementation should be ok.

As Luis is saying if a user is implementing new classes in IGSTK then he 
should be considered as a developer and therefore adding one (or two) 
lines in the base classes is fine.

Julien

Luis Ibanez wrote:
> 
> Hi Patrick,
> 
> The solution is already illustrated in the interface between the
> ImageSpatialObjectRepresentationClass and the ImageSpatialObject.
> 
> A private friend class can act as an intermediary to make possible
> to pass the itkImage from the ImageSpatialObject to the Registration
> class, without having to expose the itk Image in the public API
> of the ImageSpatialObject.
> 
> Note that when you refer to a "user" that is writing her/his own
> registration class, this is actually "extending IGSTK" and therefore
> the new code should be subject to the same software development process
> as the rest of IGSTK. Exposing ITK or VTK classes in the public API
> will sacrifice all the safety that has been the concern of IGSTK so far.
> 
> 
> Please let me know if you find any difficulty in setting this same
> infrastructure for the registration class, I will be happy to help
> you with the code.
> 
> 
>    Thanks
> 
> 
>       Luis
> 
> 
> 
> ======================
> Patrick Cheng wrote:
>> Hi everyone,
>>
>> For the new demo application, the registration class need to get 
>> access to the ITK image, so that it can segment out the fiducial 
>> points. Other ImageToImage registration also requires access to the 
>> ITK image too.
>>
>> This posts a problem to the igstkImageSpatialObject class, if the user 
>> need to use their own registration class, they need to modify the 
>> igstkImageSpatialObject class and declare their registration class to 
>> be a friend class.
>>
>> Is there a better solution to this problem?
>>
>> Patrick
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>>
> 
> 
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