def to_tile(lon, lat, zoom):
    """Returns a tuple of (xtile, ytile) from a (longitude, latitude) coordinate.

    See http://wiki.openstreetmap.org/wiki/Slippy_map_tilenames

    Arguments:
    lon - longitude as int or float
    lat - latitude as int or float
    zoom - zoom level as int or float
    """
    lat_rad = math.radians(lat)
    n = 2.0 ** zoom
    xtile = int((lon + 180.0) / 360.0 * n)
    ytile = int((1.0 - math.log(math.tan(lat_rad) +
                (1 / math.cos(lat_rad))) / math.pi) / 2.0 * n)
    return xtile, ytile
def to_tile(lon, lat, zoom):
    """Returns a tuple of (xtile, ytile) from a (longitude, latitude) coordinate.

    See http://wiki.openstreetmap.org/wiki/Slippy_map_tilenames

    Arguments:
    lon - longitude as int or float
    lat - latitude as int or float
    zoom - zoom level as int or float
    """
    lat_rad = math.radians(lat)
    n = 2.0 ** zoom
    xtile = int((lon + 180.0) / 360.0 * n)
    ytile = int((1.0 - math.log(math.tan(lat_rad) +
                (1 / math.cos(lat_rad))) / math.pi) / 2.0 * n)
    return xtile, ytile
def to_tile ( lon , lat , zoom ) : lat_rad = math . radians ( lat ) n = 2.0 ** zoom xtile = int ( ( lon + 180.0 ) / 360.0 * n ) ytile = int ( ( 1.0 - math . log ( math . tan ( lat_rad ) + ( 1 / math . cos ( lat_rad ) ) ) / math . pi ) / 2.0 * n ) return xtile , ytile
Returns a tuple of (xtile, ytile) from a (longitude, latitude) coordinate.

    See http://wiki.openstreetmap.org/wiki/Slippy_map_tilenames

    Arguments:
    lon - longitude as int or float
    lat - latitude as int or float
    zoom - zoom level as int or float
Returns a tuple of ( xtile ytile ) from a ( longitude latitude ) coordinate .