def nearby(self):
tile, level = TileSystem.quadkey_to_tile(self.key)
perms = [(-1, -1), (-1, 0), (-1, 1), (0, -1),
(0, 1), (1, -1), (1, 0), (1, 1)]
tiles = set(
map(lambda perm: (abs(tile[0] + perm[0]), abs(tile[1] + perm[1])), perms))
return [TileSystem.tile_to_quadkey(tile, level) for tile in tiles]
def nearby(self):
tile, level = TileSystem.quadkey_to_tile(self.key)
perms = [(-1, -1), (-1, 0), (-1, 1), (0, -1), (0, 1), (1, -1), (1, 0),
(1, 1)]
tiles = set(
map(lambda perm: (abs(tile[0] + perm[0]), abs(tile[1] + perm[1])),
perms))
return [TileSystem.tile_to_quadkey(tile, level) for tile in tiles]
def lonlat_to_quadkey(lonlat, level):
pix = tsm.geo_to_pixel(lonlat, level)
pix = np.column_stack((pix[0], pix[1]))
tile = tsm.pixel_to_tile(pix)
tile = np.column_stack((tile[0], tile[1]))
qk = tsm.tile_to_quadkey(tile, level)
qk = qk.reshape(-1, 1)
qk = pd.Series(qk[:, 0]).astype(str)
return qk.values
def lonlat_to_quadkey_with_shift(quadkey, loshift):
quadkeys = np.array([quadkey] * len(loshift))
tilex, tiley, level = tsm.quadkey_to_tile(quadkeys)
tile = np.column_stack((tilex, tiley))
shift = np.array(loshift)
tile = tile + shift
loquadkey = tsm.tile_to_quadkey(tile, level)
loquadkey = loquadkey.reshape(-1, 1)
loquadkey = pd.Series(loquadkey[:, 0]).astype(str)
loquadkey = loquadkey.str[1:]
return loquadkey.values.astype(str)
def from_geo(geo, level):
"""
Constucts a quadkey representation from geo and level
geo => (lat, lon)
If lat or lon are outside of bounds, they will be clipped
If level is outside of bounds, an AssertionError is raised
"""
pixel = TileSystem.geo_to_pixel(geo, level)
tile = TileSystem.pixel_to_tile(pixel)
key = TileSystem.tile_to_quadkey(tile, level)
return QuadKey(key)
def from_geo(geo, level):
"""
Constucts a quadkey representation from geo and level
geo => (lat, lon)
If lat or lon are outside of bounds, they will be clipped
If level is outside of bounds, an AssertionError is raised
"""
pixel = TileSystem.geo_to_pixel(geo, level)
tile = TileSystem.pixel_to_tile(pixel)
key = TileSystem.tile_to_quadkey(tile, level)
return QuadKey(key)
def from_tile(tile, level):
return QuadKey(TileSystem.tile_to_quadkey(tile, level))
def from_tile(tile, level):
return QuadKey(TileSystem.tile_to_quadkey(tile, level))