Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!iuvax!watmath!watcgl!rhbartels
From: rhbartels@watcgl.waterloo.edu (Richard Bartels)
Newsgroups: comp.graphics
Subject: Re: Intersection calculation problem
Message-ID: <11879@watcgl.waterloo.edu>
Date: 12 Oct 89 13:23:19 GMT
References: <1445@tukki.jyu.fi>
Reply-To: rhbartels@watcgl.waterloo.edu (Richard Bartels)
Organization: U. of Waterloo, Ontario
Lines: 20

In article <1445@tukki.jyu.fi> toivanen@tukki.jyu.fi (Jari Toivanen) writes:
 :
 :I would like to know is there any simple and effective solution to
 :following problem:
 :
 : [intersecting a ray with a rotated cubic curve]
 :
 :Jari Toivanen                           Segments are for worms ;-)
 :University of Jyvaskyla, Finland        Internet: toivanen@tukki.jyu.fi

Look at the article:

	Ray Tracing Objects Defined By Sweeping Planar Cubic Splines
	Jarke J. van Wijk
	ACM Transactions on Graphics
	Vol. 3, No. 3, July, 1984, pp. 223-237

I believe that the author subsequently wrote a whole book on the subject.

-Richard