best-fit

How to align shapes together? (Geometrical Best-Fit Algorithm)

I'm working with mecanical engineers who rely on 3D modeling software. These softwares have a "Best Fit" feature. It allows you to acquire data with a sensor (like a 3D scanner) and align the mesured data with a CAD Drawing. I'd like to know how such an algorithm can work! In simpler words, imagine that you have 2 NEARLY identical tria...