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# Ccreate a semi-transparent title for an image.
require 'RMagick'
include Magick
puts <<END_INFO
This example uses a semi-transparent background color to create a title.
View the resulting image by entering the command: display image_opacity.miff
END_INFO
balloons = Image.read(File.join(File.dirname(__FILE__), '../doc/ex/images/Hot_Air_Balloons_H.jpg')).first
legend = Image.new(160, 50) { self.background_color = '#ffffffc0' }
gc = Draw.new
gc.annotate(legend, 0, 0, 0, 0, "Balloon Day!\\nFri May 2 2003") {
self.gravity = CenterGravity
self.stroke = 'transparent'
self.fill = 'white'
self.pointsize = 18
}
result = balloons.composite(legend, SouthGravity, OverCompositeOp)
puts "...Writing image_opacity.miff"
result.write 'image_opacity.miff'
exit
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