KD-Tree art

Lately I've worked on a KD-Tree implementation.

I've programmed a 2D log system using OpenCV which allows the visualization of the data structures.

After some test, a nice idea came up to my mind! Why shouldn't I post my data structures as a piece of mathematical art to launch my blog?! ;)

Here is the result: some points which lay on two circle and a sinc, inserted into a KD-Tree.

PS: As you can see the point x=0 of the sinc is not in the correct position! I have left it, so that it would remaind me that a PC doesn't know the concept of limit