# File gtk/sample/gtk-demo/cairo-curve-to.rb, line 28 def draw(cr) cr.move_to(X, Y) cr.curve_to(X1, Y1, X2, Y2, X3, Y3) cr.stroke cr.set_source_rgba(1, 0.2, 0.2, 0.6) cr.set_line_width(0.03) cr.move_to(X, Y) cr.line_to(X1, Y1) cr.move_to(X2, Y2) cr.line_to(X3, Y3) cr.stroke end