Re: Y positive up or down?

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Article #1167

#1167

From: Glenn Reid
Date: Sun, 02 Nov 1986 20:27

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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

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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

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