Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!samsung!umich!sharkey!bnlux1.bnl.gov!bstewart
From: bstewart@bnlux1.bnl.gov (Bruce Stewart)
Newsgroups: comp.graphics.visualization
Subject: Re: surface rendering of fuzzy cloud
Message-ID: <1991Apr29.204526.11197@bnlux1.bnl.gov>
Date: 29 Apr 91 20:45:26 GMT
References: <2594@amethyst.math.arizona.edu>
Distribution: usa
Organization: Brookhaven National Laboratory, Upton, NY 11973
Lines: 17

In article <2594@amethyst.math.arizona.edu> winfree@.math.arizona.edu (Art Winfree) writes:
>
>Does anybody know how to render the surface of a fuzzy 3D cloud of
>data points? The "cloud" is actually supposed to be a 2D surface, but
>the algorithm which generates it is not perfect, and typically
>produces a sheet of points of variable thickness. In places, the
>sheet is only 1 point thick.  We tried placing the cloud in a large
>3D array then hitting it with Marching Cubes-like surface finders,
>but always with unsatisfactory results.  B-splining the surface points
>was rejected because the points are totally unordered, and ordering
>into rectangular array of control points is precluded by complex 
>geometry of cloud.  Any suggestions?
>
>      ATW

By what criteria were the results of marching surface finders
unsatisfactory?