[IGSTK-Developers] igstkImageSpatialObject RequestGetITKImage()?

[Julien Jomier]

Hello,

I'm working on the image-to-image registration class and I need to 
access the ITK image from the igstkImageSpatialObject class.
At this point I have two options:

1) Make the registration class a friend of igstkImageSpatialObject so I 
can access the itkImage pointer.

2) Add a RequestGetITKImage() public function in the 
igstkImageSpatialObject class and return an event with a const pointer 
to the ITK image.

Option (2) sounds better for people to add their own registration 
classes without having to modify (i.e add their own class as friend) the 
igstkImageSpatialObject class. But maybe option (1) is better.
Maybe there are some other alternatives...

Let me know what you think.

Thanks,

Julien