# text_antialias.rb

    #!/usr/bin/ruby1.9.1 -w
    require 'RMagick'

    imgl = Magick::ImageList.new
    imgl.new_image(275, 170) { self.background_color = "white" }

    gc = Magick::Draw.new
    gc.fill('black')
    gc.stroke('transparent')

    if RUBY_PLATFORM =~ /mswin32/
    	gc.font_family('Georgia')
    	gc.pointsize(152)
    else
    	gc.font_family('courier')
    	gc.pointsize(200)
    end
    gc.font_weight(Magick::BoldWeight)

    # Turn off antialiasing
    gc.text_antialias(false)
    gc.text(15, 145, 'A')

    # Turn it back on
    gc.text_antialias(true)
    gc.text(145, 145, 'A')

    gc.draw(imgl)

    # Blow up the image so we can
    # easily see the image, then
    # crop to a representative portion.
    imgl.resize!(3).crop!(235,270, 365,180)
    imgl.page = Magick::Rectangle.new(365, 180)
    imgl.border!(1,1,"black")
    imgl.write("text_antialias.gif")
    exit

Close window