code: def coord_from_area(self, x, y, lat, lon, width, ground_width):
  		'''return (lat,lon) for a pixel in an area image'''
  
  		pixel_width = ground_width / float(width)
  		dx = x * pixel_width
  		dy = y * pixel_width
  
  		return mp_util.gps_offset(lat, lon, dx, -dyf coord_from_area(self, x, y, lat, lon, width, ground_width):
  		'''return (lat,lon) for a pixel in an area image'''
  
  		pixel_width = ground_width / float(width)
  		dx = x * pixel_width
  		dy = y * pixel_width
  
  		return mp_util.gps_offset(lat, lon, dx, -dy)
docs: return (lat,lon) for a pixel in an area image