[IGSTK-Developers] Re: SceneGraphExamples

[Patrick Cheng]

Hi Frank,

This is an excellent graphical illustration of the scene graph concept 
in surgery.

As we discussed in the last tcon, we will:
1. Use Tracker Frame, Reference Frame, and Data Frame (or Volume Frame)
2. Take Tracker out of the scene graph tree
3. Assume we have a single tracker in application right now, may develop 
composite Trackers class in the future.
4. The PatientToImageTransform in old API should now be associated with 
a ImageSpatialObject instead of Tracker, to be able to accommodate 
multiple image volumes in the application
5. Have a single reference in the appliaction
6. Remove coordinate system from SpatialObject and Tracker class
Please add anything I have missed here.


Luis, could you work with Frank to carry out the refactoring? I am not 
sure if this is clear enough for you to continue or not. I think Frank 
could take the lead in naming and defining the API. Let's move this 
forward and try to close the release in this month.

Thank you,

Patrick


Frank Lindseth wrote:
> Luis, Patrick
> 
> As we talked about at the Tcon: I have started a SceneGraphExamples page:
> http://public.kitware.com/IGSTKWIKI/index.php/SceneGraphExamples
> 
> More can be added, but hopefully it gives an impression of my view on this. 
> 
> Comments are highly welcome.
> 
> - Frank
> 
>