[comp.graphics] surface subdivision

blake@ccwf.cc.utexas.edu (Blake Freeburg) (05/08/91)

  I am working on something that is similar to the siggraph '89 paper
on trimmed surfaces by Rockwook, Heaton, and Davis at Silicon Graphics.
What I need to know is that when they split the surface into UV Monotone
regions, how do they know that the surface is in fact split, and not merely
cut.  Any help on this part of the algorithm would be appreciated.

Blake