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Add disk_to_pmtiles: Convert a directory of tiles to pmtiles (#431)

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Add disk_to_pmtiles CLI command and function for converting raster image pyramids to PMTiles.
This commit is contained in:
Lars Maxfield
2024-08-12 11:33:33 +02:00
committed by GitHub
parent 6a4f3d28a0
commit 579cd7a2a4
4 changed files with 222 additions and 20 deletions
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58
python/test/test_convert.py
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@@ -11,6 +11,7 @@ from pmtiles.convert import (
pmtiles_to_dir,
mbtiles_to_pmtiles,
mbtiles_to_header_json,
disk_to_pmtiles
)
from pmtiles.tile import TileType, Compression
@@ -33,6 +34,10 @@ class TestConvert(unittest.TestCase):
shutil.rmtree("test_dir")
except:
pass
try:
os.remove("test_tmp_from_dir.pmtiles")
except:
pass
def test_roundtrip(self):
with open("test_tmp.pmtiles", "wb") as f:
@@ -45,22 +50,41 @@ class TestConvert(unittest.TestCase):
writer.write_tile(5, b"5")
writer.write_tile(6, b"6")
writer.write_tile(7, b"7")
header = {
"tile_type": TileType.MVT,
"tile_compression": Compression.GZIP,
"min_zoom": 0,
"max_zoom": 2,
"min_lon_e7": 0,
"max_lon_e7": 0,
"min_lat_e7": 0,
"max_lat_e7": 0,
"center_zoom": 0,
"center_lon_e7": 0,
"center_lat_e7": 0,
}
metadata = {
"vector_layers": ['vector','layers'],
"tilestats":{'tile':'stats'},
}
metadata["minzoom"] = header["min_zoom"]
metadata["maxzoom"] = header["max_zoom"]
min_lon = header["min_lon_e7"] / 10000000
min_lat = header["min_lat_e7"] / 10000000
max_lon = header["max_lon_e7"] / 10000000
max_lat = header["max_lat_e7"] / 10000000
metadata["bounds"] = f"{min_lon},{min_lat},{max_lon},{max_lat}"
center_lon = header["center_lon_e7"] / 10000000
center_lat = header["center_lat_e7"] / 10000000
center_zoom = header["center_zoom"]
metadata["center"] = f"{center_lon},{center_lat},{center_zoom}"
metadata["format"] = "pbf"
writer.finalize(
{
"tile_type": TileType.MVT,
"tile_compression": Compression.GZIP,
"min_zoom": 0,
"max_zoom": 2,
"min_lon_e7": 0,
"max_lon_e7": 0,
"min_lat_e7": 0,
"max_lat_e7": 0,
"center_zoom": 0,
"center_lon_e7": 0,
"center_lat_e7": 0,
},
{"vector_layers": ['vector','layers'],
"tilestats":{'tile':'stats'}},
header,
metadata,
)
pmtiles_to_mbtiles("test_tmp.pmtiles", "test_tmp.mbtiles")
@@ -74,7 +98,9 @@ class TestConvert(unittest.TestCase):
mbtiles_to_pmtiles("test_tmp.mbtiles", "test_tmp_2.pmtiles", 3)
pmtiles_to_dir("test_tmp.pmtiles","test_dir")
pmtiles_to_dir("test_tmp.pmtiles", "test_dir")
disk_to_pmtiles("test_dir", "test_tmp_from_dir.pmtiles", maxzoom="auto", tile_format="pbz")
def test_mbtiles_header(self):
header, json_metadata = mbtiles_to_header_json(