[ITK] [ITK-dev] Optimizing composite transforms and center of transform

[Bradley Lowekamp]

Hello,

There are a lot of transforms involved in the new registration framework.

I am trying to figure out what the implications for the fix parameters of the transform "Center" ( ie center of rotation/scaling ) are when combined with composite transforms and the fixed/moving/registration coordinate frames...

Based on how the transforms are composed it seems necessary to set the  fix "Center" for subsequent transformations. Additionally, I am unsure how one would "improve" ( poorly defined? ) the center for a subsequent transform ie Affine after a similarity...

Are there some documented guidance or figures to help with this issue?
Do we have a comprehensive diagram of these transforms?

Thanks,
Brad

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