Xref: utzoo comp.graphics:12745 comp.sys.sgi:5223
Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!uwm.edu!zaphod.mps.ohio-state.edu!usc!elroy.jpl.nasa.gov!ames!sgi!shinobu!odin!miq
From: miq@sgi.com
Newsgroups: comp.graphics,comp.sys.sgi
Subject: Re: Smooth curves on an IRIS 4D, Personal IRIS
Message-ID: <11461@odin.corp.sgi.com>
Date: 6 Aug 90 20:39:47 GMT
References: <1172@cs.nps.navy.mil>
Sender: news@odin.corp.sgi.com
Organization: Silicon Graphics, Inc., Mountain View, CA
Lines: 36

In article <1172@cs.nps.navy.mil> dabro@cs.nps.navy.mil (George Dabrowski) writes:
>Does anyone have any experience drawing smooth curves on an
>IRIS using a package called NURBS? If so, please tell me where
>I can get it and what you think of it. I am looking for a better
>way of drawing curves than is available in the graphics library
>at present.
>Thanks Much!

NURBS is not a package (well maybe it is but I've never heard of it) but stands
for: Non-Uniform Rational B-Splines.  These are now available from the graphics
library.

Here are the available on-line man pages:
bgnsurface, endsurface (3G) - delimit a NURBS surface definition
bgntrim, endtrim (3G)   - delimit a NURBS surface trimming loop
getnur (3G)             - returns the current value of a trimmed NURBS surfaces 
display property
getnurbsproperty (3G)   - returns the current value of a trimmed NURBS surfaces 
display property
nurbscurve (3G)         - controls the shape of a NURBS trimming curve
nurbssurface (3G)       - controls the shape of a NURBS surface
pwlcurve (3G)           - describes a piecewise linear trimming curve for NURBS 
surfaces
setnur (3G)             - sets a property for the display of trimmed NURBS surfa
ces
setnurbsproperty (3G)   - sets a property for the display of trimmed NURBS surfa
ces
trimnurbs (1)           - create, display and edit trimmed, non-uniform, rationa
l B- Spline surfaces (NURBS)


--
"Mister! Hey mister! You lights are popped up, but they aren't on!"
	"Huh?  Oh gee thanks...<sigh>"
				An ignorant good samaritan and me in my Bugeye
Miq Millman -- miq@sgi.com or {decwrl,pyramid,ucbvax}!sgi!miq  415 335 1041