#!/usr/bin/ruby include('LSystem/LSystem.sf') var rules = Hash( S => 'T[-S]+S', T => 'TT', ); var lsys = LSystem( width: 1000, height: 1000, scale: 0.4, xoff: 100, yoff: 700, len: 5, angle: 35, color: 'dark green', ); lsys.execute('S', 9, "tree.png", rules);