In a Voronoi diagram each colored region is the set of all locations on the plane that are closer to the black node inside the region than to any other nodes. I have 50 random nodes and each start with a separately colored circle of radius 200 pixels. Then the circles start shrinking slowly leaving behind the Voronoi diagram as they diminish. If the animation is jumpy Turbo Mode (Shift+Green Flag) may help
This is my implementation of a surprising algorithm I first saw in the excellent work of zdestefano70 to compute a Voronoi diagram. Unlike most Voronoi computations, the rendering of this algorithm is quite fast but it is hard to see how and why it works. I wanted to slow down this algorithm to gain insight as to how shrinking circles around the Voronoi nodes are painting the Voronoi diagram.
