Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.2 9/18/84; site brl-tgr.ARPA
Path: utzoo!watmath!clyde!burl!ulysses!allegra!bellcore!decvax!genrad!mit-eddie!godot!harvard!seismo!brl-tgr!tgr!0210097%techunix.BITNET@ucb-vax.ARPA
From: 0210097%techunix.BITNET@ucb-vax.ARPA (Ephraim Silverberg)
Newsgroups: net.unix-wizards
Subject: Troff Inquiries
Message-ID: <9221@brl-tgr.ARPA>
Date: Thu, 14-Mar-85 14:59:14 EST
Article-I.D.: brl-tgr.9221
Posted: Thu Mar 14 14:59:14 1985
Date-Received: Sun, 17-Mar-85 01:29:34 EST
Sender: news@brl-tgr.ARPA
Lines: 37


********************************************************************************
* Warning:  Please do NOT reply by 'r' as mail header address may be incorrect *
********************************************************************************

     We are running Unix 4.2 bsd on a Vax11/750 connected to an  LA100  (Letter-
printer  100  -- Digital Electronic Corporation) and we'd like to get 'troff' to
work on it. Therefore, I'd like to pose the following questions:

      (1) What does 'troff' output?  I have been told it is  CAT  pho-
          tosetter codes; what are CAT photosetter codes and where can
          I find more information about them?

      (2)  I  have  been  told  that   by   piping   'troff'   through
          /usr/lib/vcat  and /usr/lib/rvcat the output is converted to
          a raster of bits.  What does this mean  and  what  do  these
          programmes do?

      (3) Finally, assuming that I have all  the  information  needed,
          how do I go about getting it to work on a particular printer
          (i.e.  the LA100).  I have the escape sequence that puts the
          LA100  in  graphics  mode  and  I know how the graphics mode
          works (in addition to knowing  the  specifications  --  e.g.
          dots per inch horizontally and vertically).

     I shall endeavour to post a summary of the responses I receive in  about  a
month's  time.

--------------------------------------------------------------------------------

Ephraim Silverberg

BITNET  : 0210097@techunix
ARPANET : 0210097%techunix.bitnet@wiscvm.arpa
UUCP    : 0210097%techunix.BITNET@psuvax1.UUCP

--------------------------------------------------------------------------------