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From: jejones@mcrware.UUCP (James Jones)
Newsgroups: comp.graphics
Subject: Re: Fractals
Summary: not just the interior!
Keywords: adaptive contour plotting, fractals
Message-ID: <966@mcrware.UUCP>
Date: 28 Feb 89 18:55:13 GMT
References: <160.2404E090@muadib.FIDONET.ORG> <11150@s.ms.uky.edu>
Reply-To: jejones@mcrware.UUCP (James Jones)
Distribution: usa
Organization: Microware Systems Corp., Des Moines, Iowa
Lines: 13

The method mentioned (reference given to a recent *Scientific American*)
of course applies to more than just the interior of the Mandelbrot set,
though in this case that is where the major payoff comes.  It is an appli-
cation to contour plotting of adaptive techniques (which one can use for
plotting curves as well, since, for example, adaptive trapezoidal quad-
rature is just what you want to determine the segments to draw to approx-
imate a function, and if you recur with the leftmost segment first, you
need never lift the (figurative or actual) pen from the (figurative or
actual :-) paper!).  Beware of the usual things that can fake out adaptive
techniques, e.g. periodicity (not much fear of that for the Mandelbrot
set, though :-).

		James Jones