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--- simulating_photosynthesis [2008-10-06 10:01] – davegriffiths
+++ simulating_photosynthesis [2008-10-09 11:08] – davegriffiths
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 Using lindenmayer systems and genetic algorithms to simulate plant growth.
-{{http://www.pawfal.org/dave/images/patab-angle-s.png}}
-{{http://www.pawfal.org/dave/images/patab-close-s.png}}
-{{http://www.pawfal.org/dave/images/patab-occlude-s.png}}
 Plants are given a "fitness" based on their leaves -
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   * Are they below the ground?
   * Also - the fitness drops as the plant description (a linenmayer system string) gets too long.
+{{http://www.pawfal.org/dave/images/patab-angle-s.png}}
+{{http://www.pawfal.org/dave/images/patab-close-s.png}}
+{{http://www.pawfal.org/dave/images/patab-occlude-s.png}}
+The leaf score is indicated by it's colour (red=bad, green=good).
 Using this measurement, a genetic algorithm can create populations of individual plants, score each one and iteratively create new populations by combining fit individuals.
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 {{http://www.pawfal.org/dave/images/patab-long.png}}
-The result of a long run with many thousands of generations.
+The result of a long run with many thousands of generations. Many leaves circle the light to get the maximum photosynthesis possible.
 {{http://www.pawfal.org/dave/images/patab-helped.png}}
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 <embed src="http://blip.tv/play/AdGkMo_+Sw" type="application/x-shockwave-flash" width="640" height="480" allowscriptaccess="always" allowfullscreen="true"></embed>
 </html>
+Another evolutionary run, a bit more interesting than the one-leaf approach.