class Pong::CenteredCircle
Public Instance Methods
draw(cr)
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# File gtk2/sample/misc/cairo-pong.rb, line 49 def draw(cr) cr.translate(min_x, min_y) cr.scale(@width, @height) cr.arc(0.5, 0.5, 0.5, 0, 2 * Math::PI) cr.fill end