# File lib/gruff/line.rb, line 156 def draw_reference_line(reference_line, left, right, top, bottom) @d = @d.push @d.stroke_color(reference_line[:color] || @reference_line_default_color) @d.fill_opacity 0.0 @d.stroke_dasharray(10, 20) @d.stroke_width(reference_line[:width] || @reference_line_default_width) @d.line(left, top, right, bottom) @d = @d.pop end