How to find the closest point between two adjacent circles

Hi everyone, I have created a circle packing using Kangaroo. If I want to find the closest point between two adjacent circles and create a hole as a connection between them, how should I do it?
螢幕擷取畫面 2023-03-28 004343

Proximity3d (with a range of twice the radius) will get the lines, which you can evaluate to get the points, like this:


circpack_proximity.gh (16.2 KB)

Thank you @DanielPiker
That’s what I need.