Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!linus!decvax!tektronix!tekecs!orca!brucec From: brucec@orca.UUCP (Bruce Cohen) Newsgroups: net.graphics Subject: Is ANSI NAPLPS different from Bell NAPLP, May '81 (answer) Message-ID: <1428@orca.UUCP> Date: Fri, 22-Jul-83 21:26:23 EDT Article-I.D.: orca.1428 Posted: Fri Jul 22 21:26:23 1983 Date-Received: Sat, 23-Jul-83 17:44:51 EDT References: wivax.18459 Lines: 27 Yes. There are a lot of small, subtle differences, including some sections added to deal with conformance and how to subset the standard. There are several fairly large changes, such as the requirement for a color map even in color mode 1. I can't recall all of the differences right now, but there are a fair number. The basic functionality is unchanged (there are no new character sets, or new PDIs, for instance), but there are enough differences that an implementor would do well to throw out the Bell spec. In my opinion, the ANSI document, dense as it is, is much more readable than the Bell version, in part because of the addition of some illustrations to *show* what the graphics are supposed to look like. If there is a magazine editor out there who wants to publish an article on the technical differences between the specifications, I'd be willing to do it, but a point for point analysis would bore most of the people in this newsgroup, and would be a lot of work, especially as I would practically have to go through the documents line by line to find all the changes, so I won't bother. Anyone else out there is welcome to do it. Bruce Cohen UUCP: ...!teklabs!tekecs!brucec CSNET: tekecs!brucec@tektronix ARPA: tekecs!brucec.tektronix@rand-relay