Absolutely what I was about to post. For a mouse user, mimicing the circle construction mechanics (with preview!) used in the geometry construction puzzle app t

Absolutely what I was about to post. For a mouse user, mimicing the circle construction mechanics (with preview!) used in the geometry construction puzzle app that was linked a few weeks back [1] would be the bee's knees. 1: http://www.sciencevsmagic.net/geo/ http://www.sciencevsmagic.net/geo/