Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!apple!apple.com!parent
From: parent@apple.com (Sean Parent)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Bug in DiffRgn?
Message-ID: <4480@internal.Apple.COM>
Date: 29 Sep 89 20:59:39 GMT
References: <667@unicads.UUCP>
Sender: usenet@Apple.COM
Organization: Apple Computer, Inc.
Lines: 12

In article <667@unicads.UUCP> tom@unicads.UUCP (Tom Gerardy) writes:
> The original clip is virgin, just a rect with top, left, bottom, right of
> -32767, -32767, 32767, 32767 respectively.  The region I'm trying to remove
> is also rectangular: 0, 486, 81, 501.  The difference is more complicated, of
> course, but the boundary rect is -32767, -32767, 81????, 32767.  This doesn't
> seem correct to me!

There is a problem with non rectangular regions that reach 32767. You 
should start with a rectangular region that is inset a few pixels.

Sean Parent
"Quality unattainable in a reasonable amount of time."