# 2d polygon body: rods Izz = 1/12 m length^2 1 atoms 3 13 body Coords 1 0 0 0 Types 1 1 Masses 1 1.0 Body Integers 2 1 0 Body Doubles 1 1 1.333 0 0 0 -2 0 0 2 0 0 0.5