require 'rvg/rvg'

Magick::RVG.dpi = 90

rvg = Magick::RVG.new(10.cm, 3.cm).viewbox(0, 0, 100, 30) do |canvas|
  canvas.background_fill = 'white'
  canvas.desc = "Example Use01 - Simple case of 'use' on a 'rect'"
  r = Magick::RVG::Group.new do |grp|
    grp.rect(60, 10)
  end
  canvas.rect(99.6, 29.6, 0.1, 0.1).styles(fill: 'none', stroke: 'blue', stroke_width: 0.2)
  canvas.use(r, 20, 10)
end

rvg.draw.write('Use01.gif')