Version 1.0, August 31, 2001, Copyright, Hugh Jack 1993-2001
In an attempt to model 'natural flow', there have been attempts to use gradients and potentials to choose natural path choices. These methods use the equivalent of field representations to provide a direction of travel that is 'down hill'. These methods have long setup times, and they can get caught. These techniques will benefit the most as more powerful computer hardware becomes available.