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# encoding: utf-8
#
# Although the name of the method is <code>transparency</code>, what we are
# actually setting is the opacity for fill and stroke. So 0 means completely
# transparent and 1.0 means completely opaque
#
# You may call it providing one or two values. The first value sets fill opacity
# and the second value sets stroke opacity. If the second value is omitted fill
# and stroke will have the same opacity.
#
require File.expand_path(File.join(File.dirname(__FILE__),
%w[.. example_helper]))
filename = File.basename(__FILE__).gsub('.rb', '.pdf')
Prawn::Example.generate(filename) do
stroke_axis
self.line_width = 5
fill_color "ff0000"
fill_rectangle [0, 100], 500, 100
fill_color "000000"
stroke_color "ffffff"
base_x = 100
[[0.5, 1], 0.5, [1, 0.5]].each do |args|
transparent(*args) do
fill_circle [base_x, 100], 50
stroke_rectangle [base_x - 20, 100], 40, 80
end
base_x += 150
end
reset_drawing_settings
end
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