A Simple flower using ruby processing context free DSL

#########################################
# A Simple context free DSL flower
# flower.rb after leaf.cfdg by apoc
#########################################

load_library 'context_free'

def setup_the_flower
  @petal= ContextFree.define do  
   
    rule :flower do
      circle :size => 5.0, :hue => 0.1, :saturation => 1.0, :brightness => 1.0, :alpha => 0.6
      split do
        12.times do |i|
          petal :rotation => 30*i, :brightness => 1.0
          rewind
        end
      end
    end

    rule :petal do
      split do
        petal_border :y => -17.5, :rotation => -30
        rewind
        petal_border :y => -17.5, :flip => true, :rotation => 330
      end
    end
   
    rule :petal_border do
      circle :size => 0.75, :hue => 0.1, :saturation => 0.8, :brightness => 0.2
      petal_border :y => 0.1, :rotation => 0.17, :size => 0.995
    end

  end
end

def setup
  size 400, 400
  color_mode HSB, 1.0
  background 0.1, 0.2, 0.8
  smooth
  setup_the_flower
  draw_it
end

def draw_it
  @petal.render :flower, :start_x => width/2, :start_y => height/2,
               :size => height/40
end

Flower in ruby-processing DSL

# flower.rb ruby-processing
load_library 'context_free'
 
ROT = 180*(Math.sqrt(5) - 1)
 
def setup_the_flower
  @flower = ContextFree.define do
    @rot = 0
    @pet = 0
    rule :start do
      flower :brightness => 1.0
    end
 
    rule :flower do
      @rot += ROT
      @rot = @rot % 360
      split do
        petal :brightness => 1.0, :saturation =>  0.5
      rewind
        flower :rotation => @rot, :size =>  0.99, :hue =>  0.15
      rewind
      end
    end
  
    rule :petal do
      @pet += 15
      split do
        triangle :x => 4.1, :rotation => @pet
      rewind
        petal :size => 0.995, :alpha => 0.4, :brightness => 0.5
      #rewind
      end
    end
  end
end
  
def setup
  size 800, 800
  setup_the_flower
  smooth
  draw_it
  save_frame("flower.png")
end


def draw
  # Do nothing.
end


def draw_it
  background 60, 0, 0
  @flower.render :start, :size => width*0.8, :stop_size => 2,
        :start_x => width/2, :start_y => height/2
end