Customizable tree curve

It's based on a 3D version of turtle algorithm. If you are using OpenSCAD and need a library of turtle graphics 3D, the code I wrote may be a reference.

- [OpenSCAD code](https://github.com/JustinSDK/dotSCAD/blob/master/examples/turtle/tree.scad) of the work.

# OpenSCAD Documentation
- *[OpenSCAD Documentation - Traditional Chinese](https://openhome.cc/Gossip/OpenSCAD/)*
- *[OpenSCAD Documentation - English](https://openhome.cc/eGossip/OpenSCAD/)*

# OpenSCAD Library
-