createRandom
This function has two alternatives. Let's have a look at them:
Points.createRandom(n)
n is the number of point. This function can produce random points inside the canvas.
Here is the live example:
Points.createRandom(n, minX, maxX, minY, maxY)
Using this function we can use limit the bounds. Our canvas has the size of 600x380. So we can select bounds like this: