In this tutorial we look at using the path mapper in grasshopper extensively, in order to create the following piece of geometry. The path mapper is a reasonably difficult tool to get used to, but really helps us break down data trees and learn how to manipulate them to achieve what we want. We also take a look at the very under-utilised construct mesh tool in grasshopper and how it helps us achieve this technique. Also be sure to take a look at this handy path mapper cheat sheet.
Data trees are amongst one of the tougher concepts of grasshopper to learn, if you want to learn more about them, check out this newer post in which I give a basic explanation and provide some of the fundamental concepts.