[Vala] How to make brownian tree in vala?

[san hoi <hoisan49 gmail com>]

http://rosettacode.org/wiki/Brownian_tree

I look for graphic library like javascript+canvas.
fellow euclid.py and pytweener.py based library.

http://wiki.github.com/tbaugis/hamster_experiments/tutorial

I think that it's good approach.
And though I also think that difficult way in my vala's knowledge...
How to make brownian tree in vala?

thanks for any advise.