A Gosper Curve

We see the first 8 stages of a Peano Gosper curve See more about Gosper curves. Here is an other example, which appeared in the Summer 2018 final exam. And here is an example (done in 2000 when I was still in Texas) of a tree. Povray Source code from February 11, 2000. [ The Povray code written 18 years ago still runs fine today. I just reran the tree with level 8 Picture (2400x 2400 pixel)]. But here are the curves. For the animation [GIF], look here.