Perhaps some of you have seen this:

If not, it's amazing. Anyone have any insight into how one might get object positions? I know you can get the positions of canvas objects but I would need a way for an abstraction to know its position from its parent's frame of reference... if you have any ideas, I'd be all ears!!

Thanks in advance!!
—Tedb0t

I just saw this video as well.

I am really curious on how it's done.

Hello. I accomoplished this stuff using gridflow´s gf/canvas_getpos object. Just put it into your abstraction and it should return abstraction´s coordinates on the parent´s canvas.

I hope this will help you.
bye bye.

Look also into pd´s core source code. It might help you writting your own external for meta patching etc.