Farn

L-Systems interactive

Main subject is an applet to try out Lindenmayer's language. Type in the parameters and watch the result after pressing return or clicking the update-button. If you don't know my version of his language, use the change figure-button to view the examples first. Look at the symbols list and get more information about the L-system (page 2).

Buttons, fields, etc.Description
  

yellow circle

move it to determine the start point

draw button

renew the drawing

next figure button

watch the next example

axiom field

description of the base figure

r1 and r2 fields

the rules for symbol replacement

length field

basic length for a line element (F or G)

angle field

standard value for a rotation (+ or −)

order field

depth of exchange, number of steps

direction field

the starting direction (0 shows to the right)

factor field

factor to change the length, used with (, ), *, /

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© 2007 Ulrich Schwebinghaus