cf3 (rubygems):     A library for JRubyArt, that allows the writing of context free     sketches (like context free art) in a ruby DSL. It is a bit of a toy     compared to the c++ version.  However you can get quite a bit of     satisfaction creating an interesting graphic, and you can't always     predict what you are going to get. 
Keywords: art|contextfreeart|jruby|ruby-processing