Coordinates from instance layers

Hi everyone,

I've seen that in this two post  layer-coordinates & how-to-get-coordinates-of-layers this commands were recommended to get the layers coordinates. 

lpId = car(setof(lp geGetEditCellView()~>lpps lp~>layerName == "metal1" && lp~>purpose == "drawing"))
lpId~>shapes~>bBox

M1 = car(exists(lpp instId~>master~>lpps lpp~>layerName=="Metal1" && lpp~>purpose=="drawing"))
M1~>shapes~>bBox



Neither of those gave me the coordinate of the end of the Wire, I was thinking that maybe the coordinates weren't from the cellview frame reference but from instance's frame, but neither of those calculations gave me the correct one.

I'd appreciate if anyone can tell me what I'm doing wrong.
or if there is another approach to get the M1 end coord of the instance terminals.

 

Update:
I found this post, which have a response from Andrew, which solve this in the script called  abGetLayerBBox.il

how-to-get-the-lowerleft-upperright-coordinate-from-4000-or-more-shapes-which-layer-is-me1



Regards.
R. Gómez