Contents

#########################
# hextube.rb by Martin Prout 
#########################
require 'cf3'
#load_library :cf3

def setup_the_hextube
  @hexa = ContextFree.define do
    ############ Begin defining custom terminal, as a hexagon (path C++ cfdg)
    class << self
      define_method(:hexagon) do |some_options| 
        size, options = *self.get_shape_values(some_options)
        rot = (options[:rotation])? options[:rotation]: 0
        no_fill
        stroke(*options[:color])
        stroke_weight(size/30)
        begin_shape
        6.times do |i|
          vertex(size * Math.cos(Math::PI * i/3 + rot), size * Math.sin(Math::PI * i/3 + rot))
        end
        end_shape(CLOSE)
      end 
    end
    ########### End definition of custom terminal 'hexagon'
    shape :hextube do
      hexa brightness: 1.0 
    end
  
    shape :hexa do |i = nil, j = 0.5|
      hexagon size: 1, brightness: 1.0 
      hexa size: 0.9, rotation: 5 *j
    end
  end
end

def setup
  size 800, 800
  background 0 
  smooth
  setup_the_hextube
  draw_it
end

def draw_it
  @hexa.render :hextube, start_x: width/2, start_y: height/2, 
               size: height/2.1, color: [60, 1, 1, 0.5]
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
cf3-0.0.5	samples/hex_tube.rb
cf3-0.0.4	samples/hex_tube.rb
cf3-0.0.3	samples/hex_tube.rb