chickadee » linden-scheme » render-l-system

render-l-system SYSTEM RENDER-TARGETprocedure

Evaluates each rule in the SYSTEM, in order, given their meanings defined by define-render-rule. Any rule that has not been defined by define-render-rule for the class or super-classes of the system is ignored. As with step-l-system, state is branched according to the branch statements in the system. The parameter render-target is set to RENDER-TARGET at the start of evaluation (see Turtle graphics). The value of render-target is returned.