Path: utzoo!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!intercon!news
From: amanda@mermaid.intercon.com (Amanda Walker)
Newsgroups: comp.lang.postscript
Subject: Re: Splines Underli
Message-ID: <1990Feb3.002155.16772@intercon.com>
Date: 3 Feb 90 00:21:55 GMT
References: <7897@shlump.nac.dec.com> <17811@rpp386.cactus.org> <13711@cit-vax.Caltech.Edu> <17846@rpp386.cactus.org>
Sender: @intercon.com
Reply-To: amanda@mermaid.intercon.com (Amanda Walker)
Organization: InterCon Systems Corporation, Sterling, VA
Lines: 18

In article <17846@rpp386.cactus.org>, woody@rpp386.cactus.org (Woodrow Baker)
writes:
> I think it is quite clear that Amanda is talking about the 2 knots, and teh
> 2 control points to define a Bezier curve.  

Actually, I meant any four points *on* the curve--an nth order polynomial is
uniquely determined by n+1 points--but I forgot that parametrics need more
points, since y isn't a function of x anymore.  Ah well, I did say that
it's been a while since I took Analytic Geo. :-).

My next posting will actually be about PostScript :-).

--
Amanda Walker
InterCon Systems Corporation

"Many of the truths we cling to depend greatly upon our own point of view."
	--Obi-Wan Kenobi in "Return of the Jedi"