Contents

# encoding: utf-8
#
# This transformation is used to rotate the user space. Give it an angle
# and an <code>:origin</code> point about which to rotate and a block.
# Everything inside the block will be drawn with the rotated coordinates.
#
# The angle is in degrees.
#
# If you omit the <code>:origin</code> option the page origin will be used.
#
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

  fill_circle [250, 200], 2

  12.times do |i|
    rotate(i * 30, :origin => [250, 200]) do
      stroke_rectangle [350, 225], 100, 50
      draw_text "Rotated #{i * 30}°", :size => 10, :at => [360, 205]
    end
  end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
prawn-2.1.0	manual/graphics/rotate.rb
prawn-2.0.2	manual/graphics/rotate.rb