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feat[rio-pmtiles]: allow min and/or max zoom to be omitted when specifying zoom levels (#623)

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* Allow min and/or max zoom to be omitted when specifying zoom levels

* Fix help message for `--zoom-levels`

* Add tests
This commit is contained in:
Luka S
2025-12-29 09:47:20 +00:00
committed by GitHub
parent 2fa87ea9bb
commit 76706a54c4
2 changed files with 53 additions and 6 deletions
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16
python/rio-pmtiles/rio_pmtiles/scripts/cli.py
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@@ -150,10 +150,12 @@ def guess_maxzoom(crs, bounds, width, height, tile_size):
"--zoom-levels",
default=None,
metavar="MIN..MAX",
help="A min...max range of export zoom levels. "
"The default zoom level "
"is the one at which the dataset is contained within "
"a single tile.",
help="A min..max range of export zoom levels. "
"The default min zoom level is 0 (dataset "
"contained in a single tile), and the default "
"max is calculated based on the available "
"detail in the dataset. Either or both of "
"min/max may be omitted.",
)
@click.option(
"-j",
@@ -337,7 +339,11 @@ def pmtiles(
# Resolve the minimum and maximum zoom levels for export.
maxzoom_in_file = guess_maxzoom(src.crs, src.bounds, src.width, src.height, tile_size)
if zoom_levels:
minzoom, maxzoom = map(int, zoom_levels.split(".."))
specified_levels = zoom_levels.split("..")
minzoom = specified_levels[0]
minzoom = 0 if minzoom == "" else int(minzoom)
maxzoom = specified_levels[1]
maxzoom = maxzoom_in_file if maxzoom == "" else int(maxzoom)
else:
minzoom = 0
maxzoom = maxzoom_in_file