Hi,
I finally found some time to put together a small demo (attached). It requires the latest version of s-abstractions which you can find here: http://mccormick.cx/projects/s-abstractions/page/download
Best,
Chris.
On Sun, Nov 04, 2007 at 03:30:02AM -0800, punchik punchik wrote:
hello cool abstractions, is there any music you made using this abstractions you can share?
tjanks --- Chris McCormick chris@mccormick.cx wrote:
Hello PdPeople,
Who wants to make some fractal music? Here are two abstractions that implement a Lindenmayer system. http://en.wikipedia.org/wiki/L-system
[s-ireplace] is an abstraction that takes a single integer and outputs a list of integers according to the rules specified. So you might send a message [rule 1 2 3( and then when you send a [1( you will get back a list '2 3'.
[s-lsystem] uses [s-ireplace] internally to iteratively replace lists of integers with lists of integers according to rules defined in the same way as above, thus implementing a Lindenmayer system.
Lindenmayer systems are great for generating complex sets of data from simple rules and initial values.
http://mccormick.cx/viewcvs/*checkout*/s-abstractions/s-ireplace.pd?root=svn
http://mccormick.cx/viewcvs/*checkout*/s-abstractions/s-ireplace-help.pd?root=svn
http://mccormick.cx/viewcvs/*checkout*/s-abstractions/s-lsystem.pd?root=svn
http://mccormick.cx/viewcvs/*checkout*/s-abstractions/s-lsystem-help.pd?root=svn
If you want, you could also use these with Gem to make natural looking tree-like 3d structures. Check the pd-list archives for a previous implementation of that idea which used a much simpler Lindenmayer system which was not quite as flexible.
Best,
Chris.
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Chris McCormick