Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!seismo!rutgers!sri-spam!sri-unix!hplabs!pyramid!decwrl!labrea!glacier!adobe!greid
From: greid@adobe.UUCP (Glenn Reid)
Newsgroups: net.text,net.cog-eng
Subject: Re: Y positive up or down?
Message-ID: <1903@adobe.UUCP>
Date: Sun, 2-Nov-86 15:27:34 EST
Article-I.D.: adobe.1903
Posted: Sun Nov  2 15:27:34 1986
Date-Received: Tue, 4-Nov-86 00:19:55 EST
References: <479@vaxb.calgary.UUCP>
Reply-To: greid@adobe.UUCP (Glenn Reid)
Organization: Adobe Systems, Palo Alto
Lines: 14
Keywords: inverted cartesian coordinates, pixel addressing
Xref: mnetor net.text:1131 net.cog-eng:328

I am personally in favor of the origin in the bottom-left corner, with
positive values increasing upward.

However, I am even more in favor of being able to change things in my
editing tools.  It seems feasible to make this configurable--that is, have
the coordinate system default one way, but make it possible to change it.
The only problem I can see with this is in transferring documents.  It would
probably be best to always save documents in one form, and allow on-the-fly
inversion as they are being edited, rather than storing them both ways.

Just a thought,

Glenn Reid
..decwrl!adobe!greid