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From: brucec@orca.UUCP
Newsgroups: net.graphics
Subject: Re: bitmap or raster-oriented graphics interfaces
Message-ID: <845@orca.UUCP>
Date: Tue, 22-May-84 16:51:44 EDT
Article-I.D.: orca.845
Posted: Tue May 22 16:51:44 1984
Date-Received: Sat, 26-May-84 11:20:17 EDT
References: <274@decwrl.UUCP>
Organization: Tektronix, Wilsonville OR
Lines: 43

<2nd try - plus some additional info>

Re the article by decwrl!rhea!gigi!fleischer

The 1979 Core proposal does in fact include some raster stuff (in the back in
a section called "proposal for raster extensions" or some such).  I don't
think it's the kind of whole-hearted bitmap support you are looking for, but
I can't tell for sure, since someone seems to have redirected my copy
elsewhere.

There are two articles which might prove thought provoking:

	"A Device Independent Graphics Imaging Model for Use with Raster
	 Devices" - Warnock & Wyatt (Xerox Parc)

	"A Conceptual Model of Raster Graphics Systems" - Acquah, Foley,
	 Sibert, & Wenner (Geo. Washington U.)

Both are in the Proceedings of SIGGRAPH '82 (Computer Graphics vol 16, no 3).
The Warnock paper is especially interesting because the interface described
was used in the Cedar programming environment, which is now in widespread use
at Xerox.

The ANSI X3H3 committee is grappling with standardizing raster primitives in
the Virtual Device Interface (VDI) right now.  Both Microsoft and DEC are
represented on the VDI subcommittee (Bob: your principal DEC rep is Tom
Powers, in Maynard).  If anyone wants to get information, or assist in the
standards effort, contact the chair of the VDI committee:

	Margaret Journey
	Precision Visuals
	6260 Lookout Road
	Boulder, CO  80301


				Bruce Cohen
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