# writing_mode01.rb

    require 'rvg/rvg'

    Magick::RVG.dpi = 90

    TEXT_STYLES = {:writing_mode=>'tb',
                   :glyph_orientation_vertical=>0,
                   :fill=>'red4',
                   :font_weight=>'bold',
                   :font_size=>16}

    TEXT_STYLES2 = {:writing_mode=>'tb',
                   :glyph_orientation_vertical=>90,
                   :fill=>'green',
                   :font_weight=>'bold',
                   :font_size=>16}

    rvg = Magick::RVG.new(1.25.in, 7.in).viewbox(0,0,125,700) do |canvas|
        canvas.background_fill = 'white'

        canvas.text(40, 15, ":glyph_orientation_vertical=0").styles(TEXT_STYLES)
        canvas.text(80, 25, ":glyph_orientation_vertical=90").styles(TEXT_STYLES2)

        canvas.rect(124, 698).styles(:fill=>'none',:stroke=>'blue')
    end

    rvg.draw.write('writing_mode01.gif')

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