def contains?(pt)
      ((pt.lat >= min_lat) && (pt.lat <= max_lat) && (pt.lon >= min_lon) && (pt.lon <= max_lon))
    end
def contains?(pt)
      ((pt.lat >= min_lat) && (pt.lat <= max_lat) && (pt.lon >= min_lon) && (pt.lon <= max_lon))
    end
Returns true if the pt is within these bounds.