Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!hellgate.utah.edu!caen!sdd.hp.com!spool.mu.edu!snorkelwacker.mit.edu!bloom-beacon!eru!hagbard!sunic!liuida!isy!lysator.liu.se!zap From: zap@lysator.liu.se (Zap Andersson) Newsgroups: comp.graphics Subject: Re: 3-d splines Message-ID: <512@lysator.liu.se> Date: 26 Feb 91 07:12:39 GMT References: <91686@unix.cis.pitt.edu> Sender: news@isy.liu.se (Lord of the News) Organization: Lysator Computer Club, Linkoping University, Sweden Lines: 27 jpjst@unix.cis.pitt.edu (James P. Joyce) writes: >I have a set of 3-points. I would like to draw a spline through these >points. Does anyone have any references or pointers to where I can look >this up? >Its easy enough to draw splines through 2-D points, but I'm not sure how >to do it with 3-points. If what yuu refer to as 2D splines is a set of Y points as a '}ifunction' of set of }iX points, then that is really a 1D spline, where X is the 'time' axis. To traw an N dimension spline, use N of these 1D splines, where the set of X (time) values are the same for all variables. I use 7 D splines for camera motion in my raytracing program fr'instance... > Thanks > Jim Ye~rr welcome (sorry for the noisy line) /Z -- * * * * * * * * * * * * * * * * * (This rent for space) * My signature is smaller than * Be warned! The letter 'Z' is Copyright 1991 * yours! - zap@lysator.liu.se * by Zap Inc. So are the colors Red, Green and * * * * * * * * * * * * * * * * * Greenish-yellow (Blue was taken by IBM) Brought to you by Super Global Mega Corp .com