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Path: utzoo!henry
From: henry@utzoo.UUCP (Henry Spencer)
Newsgroups: net.sources
Subject: Re: plot(3) library for HPGL plotters
Message-ID: <4542@utzoo.UUCP>
Date: Fri, 26-Oct-84 14:17:43 EDT
Article-I.D.: utzoo.4542
Posted: Fri Oct 26 14:17:43 1984
Date-Received: Fri, 26-Oct-84 14:17:43 EDT
References: <4540@utzoo.UUCP>
Organization: U of Toronto Zoology
Lines: 10

One minor annoyance of this library that perhaps should have been
mentioned in the posting:  the arc() routine needs both floating-point
and the -lm math library.  It's hard to fix this, since plot(3) and
HPGL have different ideas of how to specify arcs, and the transformation
requires non-trivial trigonometry.  If any masochist out there feels
like figuring out how to do all that without floating-point, I'd be
interested in seeing the result.
-- 
				Henry Spencer @ U of Toronto Zoology
				{allegra,ihnp4,linus,decvax}!utzoo!henry