Add contributed Libraries by selecting the menu item Sketch → Import Library... → Add Library... This will open the Contribution Manager, where you can browse for Turtle, or any other Library you want to install.
Not all available Libraries have been converted to show up in this menu. If a Library isn't there, it will need to be installed manually by following the instructions below.
Contributed Libraries may be downloaded separately and manually placed within the libraries folder of your Processing sketchbook. To find (and change) the Processing sketchbook location on your computer, open the Preferences window from the Processing application (PDE) and look for the "Sketchbook location" item at the top.
By default the following locations are used for your sketchbook folder:
- For Mac users, the sketchbook folder is located inside
~/Documents/Processing - For Windows users, the sketchbook folder is located inside
My Documents/Processing
Download Turtle from http://leahbuechley.com
Unzip and copy the contributed Library's folder into the libraries folder in the Processing sketchbook. You will need to create this libraries folder if it does not exist.
The folder structure for Library Turtle should be as follows:
Processing
libraries
Turtle
examples
library
Turtle.jar
reference
src
Some folders like examples or src might be missing. After Library Turtle has been successfully installed, restart the Processing application.
If you're having trouble, have a look at the Processing Wiki for more information, or contact the author Leah Buechley.