# File lib/gruff/base.rb, line 819
    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