pmpd.iCircle2D Create a circlular interaction between a part of the space and a class of masses. Create an interaction between a part of the space and a class of masses. This interactor act as a link to a point. The center on the interactor point can be change, So this object can be set The class of masses is set with masses name.	from the library : PMPD Format : External Environment : max freeware Max 4.5 / 4.x http://www.mathieuchamagne.com/?p=13 http://drpichon.free.fr/pmpd/