threeDart/three.dart — pull request #90 by markhats (2013-07-03 15:22:36+00:00)
Title: Implement TrackBallControls fixes from js version

See Issue #75.

This switches the "screen" variable to use the domElement's dimensions &
location rather than the window but only if domElement != document.

It also removes the "radius" variable in favor of using each dimension's
value (ie width & height)