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Article #209

Re: Syntax for the L-Systems part of FractInt?

#209
From: Gabriel Landini
Date: Mon, 16 Nov 1992 16:35
17 lines
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>I was under the impression that L-systems were generated by IFS codes.
>Am I completely wrong in this assumption? For example, the top half of
>the Koch curve can be generated by replacing one line segment with
>four segments, each 1/3 the length of the original (kind of looks like
>this: _/\_ ) --- each of these line segments can be considered a
>transformation with a set of IFS codes attached to it. Would this
>be a correct definition of L-system?
>------------------------------------------------------------------------------

Both things are incorrect. You can draw some fractals by the 2
methods (IFS & L-systems).

While the IFS does affine transfromations of the space, with a L-sys
you re-process a string. L-sys are like the logo turtle: go north.
turn left 45, etc but with recursion on the same string. ;-)

Gabriel
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Newsgroups: sci.fractals
Path: arc1-ca.pugleaf.net!sparky!uunet!pipex!warwick!bham!ibm3090.bham.ac.uk!LANDINIG
From: Gabriel Landini <g.landini@uk.ac.bham>
Subject: Re: Syntax for the L-Systems part of FractInt?
Sender: usenet@rs6000.bham.ac.uk (USENET News Service)
Message-ID: <923516163524@ibm3090.bham.ac.uk>
Date: Mon, 16 Nov 1992 16:35:24 GMT
References: <92312.221051SRK106@psuvm.psu.edu> <9NOV199201025385@reg.triumf.ca>  <92321.034453NMR103@psuvm.psu.edu>
Organization: The University of Birmingham, United Kingdom
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