Module | Prawn::Graphics::Transparency |
In: |
lib/prawn/graphics/transparency.rb
|
The Prawn::Transparency module is used to place transparent content on the page. It has the capacity for separate transparency values for stroked content and all other content.
Example:
# both the fill and stroke will be at 50% opacity pdf.transparent(0.5) do pdf.text("hello world") pdf.fill_and_stroke_circle_at([x, y], :radius => 25) end # the fill will be at 50% opacity, but the stroke will # be at 75% opacity pdf.transparent(0.5, 0.75) do pdf.text("hello world") pdf.fill_and_stroke_circle_at([x, y], :radius => 25) end
Sets the opacity and stroke_opacity for all the content within the block If stroke_opacity is not provided, then it takes on the same value as opacity
Valid ranges for both paramters are 0.0 to 1.0
Example:
# both the fill and stroke will be at 50% opacity pdf.transparent(0.5) do pdf.text("hello world") pdf.fill_and_stroke_circle_at([x, y], :radius => 25) end # the fill will be at 50% opacity, but the stroke will # be at 75% opacity pdf.transparent(0.5, 0.75) do pdf.text("hello world") pdf.fill_and_stroke_circle_at([x, y], :radius => 25) end