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sgraaf/quadkey_to_xy.py

Created October 27, 2020 12:33
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Convert a Quadkey to Tile (XY) coordinates (see: https://docs.microsoft.com/en-us/bingmaps/articles/bing-maps-tile-system)
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quadkey_to_xy.py
from typing import Tuple
def quadkey_to_xy(quadkey: str) -> Tuple[int, int]:
x, y = (0, 0)
level = len(quadkey)
for i in range(level):
bit = level - i
mask = 1 << (bit - 1)
if quadkey[level - bit] == '1':
x |= mask
if quadkey[level - bit] == '2':
y |= mask
if quadkey[level - bit] == '3':
x |= mask
y |= mask
return x, y
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