(self, px, py, zoom)
return px, mapSize - py
Move the origin of pixel coordinates to top-left corner
Move the origin of pixel coordinates to top-left corner
Move the origin of pixel coordinates to top - left corner
def PixelsToRaster(self, px, py, zoom):
        "Move the origin of pixel coordinates to top-left corner"

        mapSize = self.tileSize << zoom
        return px, mapSize - py
def PixelsToRaster ( self , px , py , zoom ) : mapSize = self . tileSize << zoom return px , mapSize - py