libgdx/libgdx — pull request #103 by Seraphim6x7 (2012-11-03 14:10:58+00:00)
Title: option to draw the body's velocity

An option to draw the velocities of bodies. It uses #drawSegment to draw a colored (red) vector from the body's center.
I've disabled the option by default since it adds quite a bit of visual noise in the box2d tests.