This set of videos will walk you the concept and various opertations of tree data structure in grasshopper. Through practical scenarios, the tutorials show why and how the tree data structure operations are useful.

Part 1: basics of tree data structure

Part 2: tree operation_path mapper | relative items.

The ModeLab videos shows in the tutorials above can be accessed via the link below:

https://www.youtube.com/watch?v=kNYe_f4ux4w&list=PLGV167zE8gnWXyanfp58roX_7_cGGTtBR&index=1