Is it possible to use the Draggable util class with Canvas, specifically EaselJS?   I'm creating a dial that can you can spin using throwprops. I wasnt able to use Draggable so I've recycled the dial AS3 example from here http://www.greensock.com/throwprops/ It works ok, but its a bit glitchy compared with the Draggable CSS example. I've created a Fiddle with the two versions, http://plnkr.co/edit/eKVhZL5ulUWqj5pgP9BA?p=preview   Is the something wrong with the math on my Canvas version perh