Figure 6: The growing of a context-sensitive L-system plant
To simulate the effect of the flow of nutrients or hormones in plant growing,
we have to consider the interaction between adjacent plant parts. A (k,l)-system,
the most general context-sensitive L-system,
was implemented in this software. That is, to match a symbol for a rule, we have
to consider its left k ajacent symbols and its right l ajacent symbols,
where k and l are both integers
larger than zero. The example here is a (1,0)-system, known as 1L-system.
The L-system definition in text file r2.l:
Note the syntax of the context-sensitive L-system listed above. The
second rule means that whenever there is a symbol F located at the left
neighborhood of symbol E, the symbol E should be replaced by the
successor of the rule, that is, F[ 
F[+++A]][^F[---A]].
The third rule describes the shape of a leaf. The special symbol G is
used to notify the interpreter that it represents the structure of
a leaf, not of a branch.
The geometry definition in the html file:
