# File lib/scruffy/layers/sparkline_bar.rb, line 23
        def generate_coordinates(options = {})
          @bar_width = (width / points.size) * 0.9
          options[:point_distance] = (width - (width / points.size)) / (points.size - 1).to_f

          coords = (0...points.size).map do |idx| 
            x_coord = (options[:point_distance] * idx) + (width / points.size * 0.5)

            relative_percent = ((points[idx] == min_value) ? 0 : ((points[idx] - min_value) / (max_value - min_value).to_f))
            y_coord = (height - (height * relative_percent))
            [x_coord, y_coord]
          end
          coords
        end