private RenderQueue getKochSnowflake(int numGenerations)
{
// rule: F --> F-F++F-F
RenderCommand[] ruleFrom = { RenderCommand.FORWARD };
RenderQueue[] ruleTo = { RenderQueue.fromString("F-F++F-F") };
Rewriter rewriter = new Rewriter(ruleFrom, ruleTo);
RenderQueue seed = RenderQueue.fromString("F++F++F");
return(rewriter.rewrite(seed, numGenerations));
}