Hmmm, I'm looking for a quad tree implementation :) Is it bound to Mondrian?
Yeah! Load Mondrian (http://www.squeaksource.com/Mondrian.html), it contains MOQuadTree. It comes with very few tests however. MOQuadTree is not bound to Mondrian. However, I find convenient to leave it in Mondrian.
What you need it for? Just curious.
Alexandre