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Article #73303gpic manual or help wanted
From: Jonathan Thornburg
Date: Tue, 15 Oct 1991 15:46
Date: Tue, 15 Oct 1991 15:46
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1639 bytes
Does anyone have a manual for "GNU pic version 1.01", or a pointer to same? It works, but I'm having a lot of trouble trying to figure out various details from "syntax error at line 33", the doesn't-explain-many-things man page, and a 10 year old paper by Kernighan describing the original pic. Failing that, has anyone persuaded it to understand negative numbers? The input dy = 0.64 ymin = 0.12 ylow = ymin - dy print ylow produces the output (Sun SPARC, IEEE floating point) 2.39344e-259 which suggests that something fishy is going on! Failing *that* has anyone figured out a way to program line clipping (so I can crosshatch a region) without using negative numbers :-( ? -- - Jonathan Thornburg jonathan@geop.ubc.ca Dept. of Geophysics & Astronomy thornburg@mtsg.ubc.ca 2219 Main Mall thornbur@physics.ubc.ca The University of British Columbia userbkis@ubcmtsg.bitnet Vancouver BC V6T 1Z4 Canada
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 1025b4,a499eeb536cadd16,start X-Google-Attributes: gid1025b4,public X-Google-ArrivalTime: 1991-10-15 16:11:02 PST Path: arc1-ca.pugleaf.net!gmdzi!unido!mcsun!uunet!elroy.jpl.nasa.gov!lll-winken!aunro!alberta!kakwa.ucs.ualberta.ca!unixg.ubc.ca!ubc-cs!rubis!jonathan From: jonathan@rubis.geop.ubc.ca (Jonathan Thornburg) Newsgroups: gnu.misc.discuss Subject: gpic manual or help wanted Message-ID: <1991Oct15.154657.18210@cs.ubc.ca> Date: 15 Oct 91 15:46:57 GMT Sender: usenet@cs.ubc.ca (Usenet News) Organization: Dept. of Geophysics and Astronomy, University of B.C. Lines: 25