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python pmtiles-to-mbtiles: lift vector_layers and tilestats into json metadata key [#120]

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This commit is contained in:
Brandon Liu
2023-06-22 15:34:38 +08:00
parent 56f5a7c179
commit c6dbd0e4fd
2 changed files with 26 additions and 2 deletions
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15
python/pmtiles/convert.py
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@@ -128,11 +128,24 @@ def pmtiles_to_mbtiles(input, output):
if header["tile_type"] == TileType.MVT:
metadata["format"] = "pbf"
json_metadata = {}
for k, v in metadata.items():
if not isinstance(v, str):
if k == "vector_layers":
json_metadata["vector_layers"] = v
continue
elif k == "tilestats":
json_metadata["tilestats"] = v
continue
elif not isinstance(v, str):
v = json.dumps(v, ensure_ascii=False)
cursor.execute("INSERT INTO metadata VALUES(?,?)", (k, v))
if len(json_metadata) > 0:
cursor.execute(
"INSERT INTO metadata VALUES(?,?)",
("json", json.dumps(json_metadata, ensure_ascii=False)),
)
for zxy, tile_data in all_tiles(source):
flipped_y = (1 << zxy[0]) - 1 - zxy[2]
cursor.execute(