A high speed and memory efficient method and system for determining with a computer when a curve defined by a set of Bezier, control points is sufficiently approximated by a line segment so that the reduction of the Bezier curve into smaller curves can stop. The method is readily implemented on a computer...http://www.google.co.uk/patents/US5363479?utm_source=gb-gplus-sharePatent US5363479 - System and method for rendering bezier splines