Get Instance transformation in reference to model root

[DanRathbun]

And here is a thread that explains doing it in Ruby …

How to get components global coordination

i try some methods. firstly i use boundingbox.center, if the components have the same definition, the center values are the same. secondly i use transformation.origin, if the components have the same definition, the origin values are also the same. how do i get the components’ global coordination relative to the active model’s origin point?