Create a bar code using Ghostscript

sample-create-barcode-using-ghostscript.rb

# coding: utf-8

require 'rghost'
require 'rghost_barcode'
require 'thinreports'

RGhost::Config::GS[:path] = '/usr/local/bin/gs'

bar = RGhost::Document.new :paper => ['10 cm', '1 cm']
bar.barcode_japanpost '26300233-30-8-403',
                      :x => 0, :y => 0, :width => '10 cm', :height => '1 cm'
bar_io = StringIO.new(bar.render_stream(:png))

report = ThinReports::Report.new :layout => 'rghost'
report.start_new_page do |page|
  page.item(:barcode).src(bar_io)
end
 
report.generate_file 'rghost.pdf'