I wanted to draw a grid. Previously, I specified each horizontal and vertical line in my sketch. Totally boring, inefficient and completely inflexible way to draw repetitive lines. So, I checked out the Processing reference on for loops and then applied that methodology to my existing sketch. Tight!
This could be the method to use to draw a grid for the Design or Sew sections of the Sew, grow and mow: An AR lawn art experience.