Islands and lakes

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For an explanation see L-systems. <html> <form><textarea id="inputtext0" rows=15 cols=35 wrap="off" style="width:600px;"> var level = 2; var axiom = 'F-F-F-F'; var rules = {

   'F' : 'F-f+FF-F-FF-Ff-FF+f-FF+F+FF+Ff+FFF',
   'f' : 'ffffff', 
   '+' : '+',
   '-' : '-'

}; var symbols = { 'F':'F',

               'f':'f',
               '+':'+',
               '-':'-',
               '[':'[',
               ']':']'
             } ;
             

var angle = 90; var len = 20/Math.pow(2,level); </textarea>
<input type="button" value="run" onClick="run(0)"> <input type="button" value="clear" onClick="clearturtle(0)"> </form>

  • Przemyslaw Prusinkiewicz, James Hanan: Lindenmayer Systems, Fractals, and Plants (Lecture Notes in Biomathematics). Springer-Verlag 1989, ISBN 0-387-97092-4
  • http://en.wikipedia.org/wiki/L-system