Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10 UW 5/3/83; site uw-june
Path: utzoo!watmath!clyde!cbosgd!ihnp4!houxm!ahuta!houti!ariel!vax135!cornell!uw-beaver!uw-june!furuta
From: furuta@uw-june (Richard Furuta)
Newsgroups: net.text
Subject: Re: DVI question
Message-ID: <2048@uw-june>
Date: Sat, 8-Dec-84 02:44:29 EST
Article-I.D.: uw-june.2048
Posted: Sat Dec  8 02:44:29 1984
Date-Received: Sun, 9-Dec-84 03:51:41 EST
References: <259@zinfandel.UUCP>
Organization: U of Washington Computer Science
Lines: 13

ditroff produces a generic output file which is intended to be converted by
a postprocessor into a form suitable for printing on a particular device.
In that, it occupies the same role as does TeX's DVI format.  However, the
ditroff format is different---for one thing the operation codes are
different.  For another, the resolution of the intended device seems to be
included in the format while TeX's DVI uses the "RST".  Ditroff's format has
graphics primitives built into it while TeX's DVI has not included those
primitives in the defined language (there's an escape allowing arbitrary
things to be defined that is being used for this purpose at some sites).  I
suspect that your vendor either is confused or is converting Ditroff's
format to TeX's DVI for printing.

					--Rick