code: def to_flickr_bbox(options = {})
        options = {
          :precision => 1
        }.merge(options)
        precision = 10.0 ** options[:precision]
  
        [
          (self.west  * precision).floor / precision,
          (self.south * precision).floor / precision,
          (self.east  * precision).ceil / precision,
          (self.north * precision).ceil / precision
        ].join(',')
      end
docs: Spits out a bounding box the way Flickr likes it. You can set the
   precision of the rounding using the :precision option. In order to
   ensure that the box is indeed a box and not merely a point, the
   southwest coordinates are floored and the northeast point ceiled.