Some math art, just for fun. Inspired by a Geometry Daily. I wanted randomness, but trees that had some sense of proportion, too. So I played around with a range of canopy sizes compared to random trunk length, then random thickness as a percentage of height. I didn't ever get around to randomizing colors within a range though... would have to think about it. All the trees are calculated from the X point, and the window set in terms of the first and last point. Press play or New Trees to get new trees.
More GeoGebra at mathhombre.blogspot.com.