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Added ability to use quad-key sources in mapview

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Mark Qvist 2023-10-26 18:54:34 +02:00
parent fe8db4b950
commit 0a2a87775e
2 changed files with 37 additions and 61 deletions
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28
sbapp/mapview/downloader.py
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@ -89,6 +89,21 @@ class Downloader:
response.raise_for_status()
return callback, (url, response)
def __to_quad(self, x, y, z):
quad_key = []
i = z
while i > 0:
digit = 0
mask = 1 << (i-1)
if (x & mask) != 0:
digit += 1
if (y & mask) != 0:
digit += 2
quad_key.append(str(digit))
i -= 1
return "".join(quad_key)
def _load_tile(self, tile):
if tile.state == "done":
return
@ -97,9 +112,16 @@ class Downloader:
# Logger.debug("Downloader: use cache {}".format(cache_fn))
return tile.set_source, (cache_fn,)
tile_y = tile.map_source.get_row_count(tile.zoom) - tile.tile_y - 1
uri = tile.map_source.url.format(
z=tile.zoom, x=tile.tile_x, y=tile_y, s=choice(tile.map_source.subdomains)
)
if tile.map_source.quad_key:
uri = tile.map_source.url.format(
q=self.__to_quad(tile.tile_x,tile_y,tile.zoom), s=choice(tile.map_source.subdomains)
)
else:
uri = tile.map_source.url.format(
z=tile.zoom, x=tile.tile_x, y=tile_y, s=choice(tile.map_source.subdomains)
)
# Logger.debug("Downloader: download(tile) {}".format(uri))
response = requests.get(uri, headers={'User-agent': USER_AGENT}, timeout=5)
try: