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mbtiles2pmtiles has maxzoom option

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Brandon Liu
2021-02-22 17:06:55 +08:00
parent 420115502f
commit b6ad04aa40
1 changed files with 11 additions and 7 deletions
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18
python/bin/mbtiles2pmtiles
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@@ -1,23 +1,27 @@
#!/usr/bin/env python
import sys
import argparse
import sqlite3
from pmtiles.writer import write
if len(sys.argv) <= 2:
print("Usage: mbtiles2pmtiles MBTILES_FILE PMTILES_FILE")
exit(1)
parser = argparse.ArgumentParser(description='Convert an MBTiles archive to PMTiles.')
parser.add_argument('mbtiles_file',help='input MBTiles')
parser.add_argument('pmtiles_file',help='output PMTiles')
parser.add_argument('--maxzoom', help='the maximum zoom level to include in the output.')
args = parser.parse_args()
conn = sqlite3.connect(sys.argv[1])
conn = sqlite3.connect(args.mbtiles_file)
cursor = conn.cursor()
with write(sys.argv[2]) as writer:
for row in cursor.execute('SELECT zoom_level,tile_column,tile_row,tile_data FROM tiles ORDER BY zoom_level,tile_column,tile_row ASC'):
with write(args.pmtiles_file) as writer:
for row in cursor.execute('SELECT zoom_level,tile_column,tile_row,tile_data FROM tiles WHERE zoom_level <= ? ORDER BY zoom_level,tile_column,tile_row ASC',(args.maxzoom or 99,)):
writer.write_tile(row[0],row[1],row[2],row[3])
metadata = {}
for row in cursor.execute('SELECT name,value FROM metadata'):
metadata[row[0]] = row[1]
if args.maxzoom:
metadata['maxzoom'] = str(args.maxzoom)
result = writer.finalize(metadata)
print("Num tiles:",result['num_tiles'])
print("Num unique tiles:",result['num_unique_tiles'])