🚀 go-pugleaf

In article <8609@pt.cs.cmu.edu> lehmann@ss3a.cs.cmu.edu (Eric Lehmann) writes:

     I am interested in learning how Quickdraw region operations work so
   efficiently. In particular, I would like to find out how Quickdraw
   determines if two regions overlap. Are there any articles explaining
   how it works? Thanks.
				   -Eric
There is a story (probably apocryphal, but who knows?) that one day,
Bill Atkinson (the inventor of quickdraw regions) was in a car
accident.  The first question the apple folks (Jobs, Woz, etc.) asked
him when he first awakened was "Bill, do you still know how regions
work?"  because he was the only person in the known universe who
understood them.  I would assume that since then they have trained a
few people, deep within the apple hierarchy, as to the inner workings
of regions, but they have had to take vows of silence to protect the
sacred secret.

JAS

(with apologies if I got any of the facts wrong...)