Create a random generator for a list of points within a given bounding box. Unlike randomPoint, this generator has the property that it will keep the points apart from each other and will therefore fill the bounding box in a random, but relatively uniform way.

The first argument represents how many points to generate, however due to the nature of the algorithm this acts more as a hint and it will generally generate slightly fewer points.

For comparison, here are some points generated by pure random sampling:

And here are some generated using Poisson disk sampling: