def create_rectangle_geo(LATRES, LONRES, ORIGIN_LAT, ORIGIN_LON, rowno, startcol, linedata):
  # find a rectangle of pixels with the same value, and represent that pixel instead
  endcol = startcol
  while (endcol < len(linedata)) and (linedata[endcol] == linedata[startcol]):
    endcol = endcol + 1
  return create_geo(LATRES, LONRES, ORIGIN_LAT, ORIGIN_LON, rowno, startcol, endcol)