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From: kmc@cup.portal.com (Kevin P McCarty)
Newsgroups: comp.graphics
Subject: Re: nice little new graphics book
Message-ID: <33857@cup.portal.com>
Date: 13 Sep 90 08:26:13 GMT
References: <2064@med.Stanford.EDU= <1990Sep8.023346.1099@techbook.com>
  <2091@med.Stanford.EDU> <463@datran2.uunet>
Organization: The Portal System (TM)
Lines: 25

Steve Boker remarks on the new book, The Algorithmic Beauty of Plants,
Przemyslaw Prusinkiewicz and Aristid Lindenmayer, and asks about
software mentioned in the appendix.

The preface of this book notes that some of it came from
Lindenmayer Systems, Fractals, and Plants, 
Przemyslaw Prusinkiewicz and James Hanan,
Springer-Verlag Lecture Notes in Biomathematics 79, 1989
ISBN 0-387-97092-4

The appendix to that book gives program listings, in C, for the
pfg program (pfg = Plant and Fractal Generator).  The code includes
a generator for generating L-systems with brackets and left and right
context, as well as an interpretor for producing two-dimensional images
specified by the resulting L-systems with turtle interpretation.
I coded it up, and hooked in graphics drivers for drawing line segments
etc.  It works.

No, I won't distribute it to requestors.  The code is copyrighted.
The book is copyrighted.  Go buy the book-- it's $20 (about half the
price of the new expanded coffee-table version), and last I checked,
places like Computer Literacy in Sunnyvale CA had it on the shelf.
They take orders by phone (408-435-1118) and they ship to anywhere.

Kevin McCarty