draw_no_data (Gruff::Base)

    # File lib/gruff/base.rb, line 859
        def draw_no_data
          @d.fill = @font_color
          @d.font = @font if @font
          @d.stroke('transparent')
          @d.font_weight = NormalWeight
          @d.pointsize = scale_fontsize(80)
          @d.gravity = CenterGravity
          @d = @d.annotate_scaled( @base_image,
          @raw_columns, @raw_rows/2.0,
          0, 10,
          @no_data_message, @scale)
        end