This project is the continuation of my "In-Out"... http://scratch.mit.edu/projects/icampeao/2660272. Many thanks to mathjp by the idea. *************** The lines that contain the sides of a triangle define regions in the plane characterized by the signals (+ or –) of the barycentric coordinates of the points in each region (Only inside the triangle, the three barycentric coordinates of each point are all greater than zero). In this project, there are bird sounds, or short excerpts of music also with bird sounds, of different types according to the clicked region.
