translate.rb

# encoding: utf-8
#
# This transformation is used to translate the user space. Just provide the
# x and y coordinates for the new origin.
#
require File.expand_path(File.join(File.dirname(__FILE__),
                                   %w[.. example_helper]))

filename = File.basename(__FILE__).gsub('.rb', '.pdf')
Prawn::ManualBuilder::Example.generate(filename) do
  stroke_axis

  1.upto(3) do |i|
    x = i * 50
    y = i * 100
    translate(x, y) do
      # Draw a point on the new origin
      fill_circle [0, 0], 2
      draw_text "New origin after translation to [#{x}, #{y}]",
                :at => [5, -2], :size => 8

      stroke_rectangle [100, 75], 100, 50
      text_box "Top left corner at [100,75]",
               :at => [110, 65],
               :width => 80,
               :size => 8
    end
  end
end