I would like to write a simple Calibre Tcl script that can do the following things:
1. Calculating the area of a specific layer in a window (ex. area of all M1 shapes in a 1um X 1um window).
2. Calculating the area of all overlaps between two layers in a window (ex. area of all overlaps between M1 and V1 in a 1um X 1um window).
3. Iterating the window on an entire design with a specific step.
I have no experience in writing Calibre Tcl code and I think that asking these simple questions here would be the most efficient way to get the answers for them.