def merge_mbtiles(mbtiles_file1, mbtiles_file2, **kwargs):
scale = kwargs.get('tile_scale', None)
zoom = kwargs.get('zoom', -1)
min_zoom = kwargs.get('min_zoom', 0)
max_zoom = kwargs.get('max_zoom', 18)
tmp_dir = kwargs.get('tmp_dir', None)
auto_commit = kwargs.get('auto_commit', False)
journal_mode = kwargs.get('journal_mode', 'wal')
synchronous_off = kwargs.get('synchronous_off', False)
min_timestamp = kwargs.get('min_timestamp', 0)
max_timestamp = kwargs.get('max_timestamp', 0)
delete_after_export = kwargs.get('delete_after_export', False)
print_progress = kwargs.get('progress', False)
delete_vanished_tiles = kwargs.get('delete_vanished_tiles', False)
flip_tile_y = kwargs.get('flip_y', False)
debug = kwargs.get('debug', False)
if tmp_dir and not os.path.isdir(tmp_dir):
os.mkdir(tmp_dir)
if zoom >= 0:
min_zoom = max_zoom = zoom
check_before_merge = kwargs.get('check_before_merge', False)
if check_before_merge and not check_mbtiles(mbtiles_file2, **kwargs):
sys.stderr.write("The pre-merge check on %s failed\n" % (mbtiles_file2))
sys.exit(1)
con1 = mbtiles_connect(mbtiles_file1, auto_commit, journal_mode, synchronous_off, False, False)
con2 = mbtiles_connect(mbtiles_file2, auto_commit, journal_mode, synchronous_off, False, True)
con1.mbtiles_setup()
# if not con1.is_compacted():
# sys.stderr.write('To merge two mbtiles databases, the receiver must already be compacted\n')
# con1.close()
# con2.close()
# sys.exit(1)
if not con2.is_compacted() and (min_timestamp != 0 or max_timestamp != 0):
con1.close()
con2.close()
sys.stderr.write('min-timestamp/max-timestamp can only be used with compacted databases.\n')
sys.exit(1)
zoom_level_string = None
if min_zoom == max_zoom:
zoom_level_string = "zoom level %d" % (min_zoom)
else:
zoom_level_string = "zoom levels %d -> %d" % (min_zoom, max_zoom)
logger.info("Merging %s --> %s (%s)" % (prettify_connect_string(con2.connect_string), prettify_connect_string(con1.connect_string), zoom_level_string))
# Check that the old and new image formats are the same
original_format = new_format = None
try:
original_format = con1.metadata().get('format')
except:
pass
try:
new_format = con2.metadata().get('format')
except:
pass
if new_format == None:
logger.info("No image format found in the sending database, assuming 'png'")
new_format = "png"
if original_format != None and new_format != original_format:
con1.close()
con2.close()
sys.stderr.write('The files to merge must use the same image format (png or jpg)\n')
sys.exit(1)
if original_format == None and new_format != None:
con1.update_metadata("format", new_format)
if new_format == None:
new_format = original_format
count = 0
start_time = time.time()
chunk = 1000
total_tiles = 1
if print_progress or debug:
total_tiles = con2.tiles_count(min_zoom, max_zoom, min_timestamp, max_timestamp, scale)
if total_tiles == 0:
con1.close()
con2.close()
sys.stderr.write('No tiles to merge, exiting...\n')
return
logger.debug("%d tiles to merge" % (total_tiles))
if print_progress:
sys.stdout.write("%d tiles to merge\n" % (total_tiles))
sys.stdout.write("0 tiles merged (0% @ 0 tiles/sec)")
sys.stdout.flush()
# merge and process (--merge --execute)
if con2.is_compacted() and kwargs['command_list']:
default_pool_size = kwargs.get('poolsize', -1)
if default_pool_size < 1:
default_pool_size = None
logger.debug("Using default pool size")
else:
logger.debug("Using pool size = %d" % (default_pool_size))
pool = Pool(default_pool_size)
multiprocessing.log_to_stderr(logger.level)
tiles_to_process = []
known_tile_ids = {}
for t in con2.tiles_with_tile_id(min_zoom, max_zoom, min_timestamp, max_timestamp, scale):
tile_z = t[0]
tile_x = t[1]
tile_y = t[2]
tile_scale = t[3]
tile_data = str(t[4])
tile_id = t[5]
if flip_tile_y:
tile_y = flip_y(tile_z, tile_y)
new_tile_id = known_tile_ids.get(tile_id)
if new_tile_id is None:
tmp_file_fd, tmp_file_name = tempfile.mkstemp(suffix=".%s" % (new_format), prefix="tile_", dir=tmp_dir)
tmp_file = os.fdopen(tmp_file_fd, "w")
tmp_file.write(tile_data)
tmp_file.close()
tiles_to_process.append({
'tile_id':tile_id,
'filename':tmp_file_name,
'format':new_format,
'size':len(tile_data),
'command_list':kwargs['command_list'],
'tile_x':tile_x,
'tile_y':tile_y,
'tile_z':tile_z,
'tile_scale':tile_scale
})
else:
con1.insert_tile_to_map(tile_z, tile_x, tile_y, tile_scale, new_tile_id)
count = count + 1
if (count % 100) == 0:
logger.debug("%d tiles merged (%.1f%% @ %.1f tiles/sec)" % (count, (float(count) / float(total_tiles)) * 100.0, count / (time.time() - start_time)))
if print_progress:
sys.stdout.write("\r%d tiles merged (%.1f%% @ %.1f tiles/sec)" % (count, (float(count) / float(total_tiles)) * 100.0, count / (time.time() - start_time)))
sys.stdout.flush()
if len(tiles_to_process) < chunk:
continue
count = process_tiles(pool, tiles_to_process, con1, count, total_tiles, start_time, print_progress, delete_vanished_tiles, known_tile_ids)
tiles_to_process = []
if len(tiles_to_process) > 0:
count = process_tiles(pool, tiles_to_process, con1, count, total_tiles, start_time, print_progress, delete_vanished_tiles, known_tile_ids)
# merge from a compacted database (--merge)
elif con2.is_compacted():
known_tile_ids = set()
tmp_images_list = []
tmp_row_list = []
tmp_tiles_list = []
for t in con2.tiles_with_tile_id(min_zoom, max_zoom, min_timestamp, max_timestamp, scale):
tile_z = t[0]
tile_x = t[1]
tile_y = t[2]
tile_scale = t[3]
tile_data = str(t[4])
tile_id = t[5]
if flip_tile_y:
tile_y = flip_y(tile_z, tile_y)
if con1.is_compacted():
if tile_id not in known_tile_ids:
tmp_images_list.append( (tile_id, tile_data) )
known_tile_ids.add(tile_id)
tmp_row_list.append( (tile_z, tile_x, tile_y, tile_scale, tile_id, int(time.time())) )
else:
tmp_tiles_list.append( (tile_z, tile_x, tile_y, tile_scale, tile_data, int(time.time())) )
count = count + 1
if (count % 100) == 0:
logger.debug("%d tiles merged (%.1f%% @ %.1f tiles/sec)" % (count, (float(count) / float(total_tiles)) * 100.0, count / (time.time() - start_time)))
if print_progress:
sys.stdout.write("\r%d tiles merged (%.1f%% @ %.1f tiles/sec)" % (count, (float(count) / float(total_tiles)) * 100.0, count / (time.time() - start_time)))
sys.stdout.flush()
if len(tmp_images_list) > 250:
con1.insert_tiles_to_images(tmp_images_list)
tmp_images_list = []
if len(tmp_row_list) > 250:
con1.insert_tiles_to_map(tmp_row_list)
tmp_row_list = []
if len(tmp_tiles_list) > 250:
con1.insert_tiles(tmp_tiles_list)
tmp_tiles_list = []
# Push the remaining rows to the database
if len(tmp_images_list) > 0:
con1.insert_tiles_to_images(tmp_images_list)
if len(tmp_row_list) > 0:
con1.insert_tiles_to_map(tmp_row_list)
if len(tmp_tiles_list) > 0:
con1.insert_tiles(tmp_tiles_list)
# merge an uncompacted database (--merge)
else:
known_tile_ids = set()
tmp_images_list = []
tmp_row_list = []
tmp_tiles_list = []
for t in con2.tiles(min_zoom, max_zoom, min_timestamp, max_timestamp, scale):
tile_z = t[0]
tile_x = t[1]
tile_y = t[2]
tile_scale = t[3]
tile_data = str(t[4])
if flip_tile_y:
tile_y = flip_y(tile_z, tile_y)
# Execute commands
if kwargs.get('command_list'):
tile_data = execute_commands_on_tile(kwargs['command_list'], new_format, tile_data, tmp_dir)
if con1.is_compacted():
m = hashlib.md5()
m.update(tile_data)
tile_id = m.hexdigest()
if tile_id not in known_tile_ids:
tmp_images_list.append( (tile_id, tile_data) )
known_tile_ids.add(tile_id)
tmp_row_list.append( (tile_z, tile_x, tile_y, tile_scale, tile_id, int(time.time())) )
else:
tmp_tiles_list.append( (tile_z, tile_x, tile_y, tile_scale, tile_data, int(time.time())) )
count = count + 1
if (count % 100) == 0:
logger.debug("%d tiles merged (%.1f%% @ %.1f tiles/sec)" % (count, (float(count) / float(total_tiles)) * 100.0, count / (time.time() - start_time)))
if print_progress:
sys.stdout.write("\r%d tiles merged (%.1f%% @ %.1f tiles/sec)" % (count, (float(count) / float(total_tiles)) * 100.0, count / (time.time() - start_time)))
sys.stdout.flush()
if len(tmp_images_list) > 250:
con1.insert_tiles_to_images(tmp_images_list)
tmp_images_list = []
if len(tmp_row_list) > 250:
con1.insert_tiles_to_map(tmp_row_list)
tmp_row_list = []
if len(tmp_tiles_list) > 250:
con1.insert_tiles(tmp_tiles_list)
tmp_tiles_list = []
# Push the remaining rows to the database
if len(tmp_images_list) > 0:
con1.insert_tiles_to_images(tmp_images_list)
if len(tmp_row_list) > 0:
con1.insert_tiles_to_map(tmp_row_list)
if len(tmp_tiles_list) > 0:
con1.insert_tiles(tmp_tiles_list)
if print_progress:
sys.stdout.write('\n')
logger.info("%d tiles merged (100.0%% @ %.1f tiles/sec)" % (count, count / (time.time() - start_time)))
if print_progress:
sys.stdout.write("%d tiles merged (100.0%% @ %.1f tiles/sec)\n" % (count, count / (time.time() - start_time)))
sys.stdout.flush()
if delete_after_export:
logger.debug("WARNING: Removing merged tiles from %s" % (mbtiles_file2))
con2.delete_tiles(min_zoom, max_zoom, min_timestamp, max_timestamp, scale)
con2.optimize_database(kwargs.get('skip_analyze', False), kwargs.get('skip_vacuum', False))
con1.close()
con2.close()
def disk_to_mbtiles(directory_path, mbtiles_file, **kwargs):
auto_commit = kwargs.get('auto_commit', False)
journal_mode = kwargs.get('journal_mode', 'wal')
synchronous_off = kwargs.get('synchronous_off', False)
print_progress = kwargs.get('progress', False)
flip_tile_y = kwargs.get('flip_y', False)
scale = kwargs.get('tile_scale', None)
zoom = kwargs.get('zoom', -1)
min_zoom = kwargs.get('min_zoom', 0)
max_zoom = kwargs.get('max_zoom', 18)
tmp_dir = kwargs.get('tmp_dir', None)
if tmp_dir and not os.path.isdir(tmp_dir):
os.mkdir(tmp_dir)
if zoom >= 0:
min_zoom = max_zoom = zoom
con = mbtiles_connect(mbtiles_file, auto_commit, journal_mode, synchronous_off, False)
con.mbtiles_setup()
# if not con.is_compacted():
# con.close()
# logger.info("The mbtiles database must be compacted, exiting...")
# return
con.mbtiles_setup()
zoom_level_string = None
if min_zoom == max_zoom:
zoom_level_string = "zoom level %d" % (min_zoom)
else:
zoom_level_string = "zoom levels %d -> %d" % (min_zoom, max_zoom)
logger.info("Importing path:'%s' --> %s (%s)" % (directory_path, prettify_connect_string(con.connect_string), zoom_level_string))
image_format = 'png'
try:
metadata = json.load(open(os.path.join(directory_path, 'metadata.json'), 'r'))
image_format = metadata.get('format', 'png')
# Check that the old and new image formats are the same
receiving_metadata = con.metadata()
if receiving_metadata != None and len(receiving_metadata) > 0:
original_format = receiving_metadata.get('format')
if original_format != None and image_format != original_format:
sys.stderr.write('The databases to merge must use the same image format (png or jpg)\n')
sys.exit(1)
for name, value in metadata.items():
con.update_metadata(name, value)
logger.info('metadata from metadata.json restored')
except IOError:
logger.warning('metadata.json not found')
count = 0
start_time = time.time()
if print_progress:
sys.stdout.write("0 tiles imported (0 tiles/sec)")
sys.stdout.flush()
known_tile_ids = set()
tmp_images_list = []
tmp_row_list = []
tmp_tiles_list = []
for r1, zs, ignore in os.walk(os.path.join(directory_path, "tiles")):
for tile_z in zs:
if int(tile_z) < min_zoom or int(tile_z) > max_zoom:
continue
for r2, xs, ignore in os.walk(os.path.join(r1, tile_z)):
for tile_x in xs:
for r2, ignore, ys in os.walk(os.path.join(r1, tile_z, tile_x)):
for tile_y in ys:
tile_y, extension = tile_y.split('.')
f = open(os.path.join(r1, tile_z, tile_x, tile_y) + '.' + extension, 'rb')
tile_data = f.read()
f.close()
if flip_tile_y:
tile_y = str(flip_y(tile_z, tile_y))
# Execute commands
if kwargs.get('command_list'):
tile_data = execute_commands_on_tile(kwargs['command_list'], image_format, tile_data, tmp_dir)
if con.is_compacted():
m = hashlib.md5()
m.update(tile_data)
tile_id = m.hexdigest()
if tile_id not in known_tile_ids:
tmp_images_list.append( (tile_id, tile_data) )
known_tile_ids.add(tile_id)
tmp_row_list.append( (tile_z, tile_x, tile_y, 1, tile_id, int(time.time())) )
else:
tmp_tiles_list.append( (tile_z, tile_x, tile_y, 1, tile_data, int(time.time())) )
count = count + 1
if (count % 100) == 0:
logger.debug("%d tiles imported (%.1f tiles/sec)" % (count, count / (time.time() - start_time)))
if print_progress:
sys.stdout.write("\r%d tiles imported (%.1f tiles/sec)" % (count, count / (time.time() - start_time)))
sys.stdout.flush()
if len(tmp_images_list) > 250:
con.insert_tiles_to_images(tmp_images_list)
tmp_images_list = []
if len(tmp_row_list) > 250:
con.insert_tiles_to_map(tmp_row_list)
tmp_row_list = []
if len(tmp_tiles_list) > 250:
con.insert_tiles(tmp_tiles_list)
tmp_tiles_list = []
# Push the remaining rows to the database
if len(tmp_images_list) > 0:
con.insert_tiles_to_images(tmp_images_list)
if len(tmp_row_list) > 0:
con.insert_tiles_to_map(tmp_row_list)
if len(tmp_tiles_list) > 0:
con.insert_tiles(tmp_tiles_list)
if print_progress:
sys.stdout.write('\n')
logger.info("%d tiles imported." % (count))
if print_progress:
sys.stdout.write("%d tiles imported.\n" % (count))
sys.stdout.flush()
con.optimize_database(kwargs.get('skip_analyze', False), kwargs.get('skip_vacuum', False))
con.close()
def mbtiles_to_disk(mbtiles_file, directory_path, **kwargs):
delete_after_export = kwargs.get('delete_after_export', False)
auto_commit = kwargs.get('auto_commit', False)
journal_mode = kwargs.get('journal_mode', 'wal')
synchronous_off = kwargs.get('synchronous_off', False)
zoom = kwargs.get('zoom', -1)
min_zoom = kwargs.get('min_zoom', 0)
max_zoom = kwargs.get('max_zoom', 18)
tmp_dir = kwargs.get('tmp_dir', None)
print_progress = kwargs.get('progress', False)
flip_tile_y = kwargs.get('flip_y', False)
min_timestamp = kwargs.get('min_timestamp', 0)
max_timestamp = kwargs.get('max_timestamp', 0)
if tmp_dir and not os.path.isdir(tmp_dir):
os.mkdir(tmp_dir)
if zoom >= 0:
min_zoom = max_zoom = zoom
con = mbtiles_connect(mbtiles_file, auto_commit, journal_mode, synchronous_off, False, True)
zoom_level_string = None
if min_zoom == max_zoom:
zoom_level_string = "zoom level %d" % (min_zoom)
else:
zoom_level_string = "zoom levels %d -> %d" % (min_zoom, max_zoom)
logger.info("Exporting %s --> path:'%s' (%s)" % (prettify_connect_string(con.connect_string), directory_path, zoom_level_string))
if not os.path.isdir(directory_path):
os.mkdir(directory_path)
base_path = os.path.join(directory_path, "tiles")
if not os.path.isdir(base_path):
os.makedirs(base_path)
metadata = con.metadata()
json.dump(metadata, open(os.path.join(directory_path, 'metadata.json'), 'w'), indent=4)
count = 0
start_time = time.time()
image_format = metadata.get('format', 'png')
sending_mbtiles_is_compacted = con.is_compacted()
if not sending_mbtiles_is_compacted and (min_timestamp != 0 or max_timestamp != 0):
con.close()
sys.stderr.write('min-timestamp/max-timestamp can only be used with compacted databases.\n')
sys.exit(1)
total_tiles = con.tiles_count(min_zoom, max_zoom, min_timestamp, max_timestamp)
logger.debug("%d tiles to export" % (total_tiles))
if print_progress:
sys.stdout.write("%d tiles to export\n" % (total_tiles))
sys.stdout.write("%d / %d tiles exported (0%% @ 0 tiles/sec)" % (count, total_tiles))
sys.stdout.flush()
for t in con.tiles(min_zoom, max_zoom, min_timestamp, max_timestamp):
tile_z = t[0]
tile_x = t[1]
tile_y = t[2]
tile_data = str(t[3])
# Execute commands
if kwargs.get('command_list'):
tile_data = execute_commands_on_tile(kwargs['command_list'], image_format, tile_data, tmp_dir)
if flip_tile_y:
tile_y = flip_y(tile_z, tile_y)
tile_dir = os.path.join(base_path, str(tile_z), str(tile_x))
if not os.path.isdir(tile_dir):
os.makedirs(tile_dir)
tile_file = os.path.join(tile_dir, '%s.%s' % (tile_y, metadata.get('format', 'png')))
f = open(tile_file, 'wb')
f.write(tile_data)
f.close()
count = count + 1
if (count % 100) == 0:
logger.debug("%d / %d tiles exported (%.1f%% @ %.1f tiles/sec)" %
(count, total_tiles, (float(count) / float(total_tiles)) * 100.0, count / (time.time() - start_time)))
if print_progress:
sys.stdout.write("\r%d / %d tiles exported (%.1f%% @ %.1f tiles/sec)" %
(count, total_tiles, (float(count) / float(total_tiles)) * 100.0, count / (time.time() - start_time)))
sys.stdout.flush()
if print_progress:
sys.stdout.write('\n')
logger.info("%d / %d tiles exported (100.0%% @ %.1f tiles/sec)" % (count, total_tiles, count / (time.time() - start_time)))
if print_progress:
sys.stdout.write("%d / %d tiles exported (100.0%% @ %.1f tiles/sec)\n" % (count, total_tiles, count / (time.time() - start_time)))
sys.stdout.flush()
if delete_after_export:
logger.debug("WARNING: Removing exported tiles from %s" % (mbtiles_file))
con.delete_tiles(min_zoom, max_zoom, min_timestamp, max_timestamp)
con.optimize_database(kwargs.get('skip_analyze', False), kwargs.get('skip_vacuum', False))
con.close()
def disk_to_mbtiles(directory_path, mbtiles_file, **kwargs):
logger.info("Importing from disk to database: %s --> %s" % (directory_path, mbtiles_file))
import_into_existing_mbtiles = os.path.isfile(mbtiles_file)
existing_mbtiles_is_compacted = True
no_overwrite = kwargs.get('no_overwrite', False)
auto_commit = kwargs.get('auto_commit', False)
zoom = kwargs.get('zoom', -1)
min_zoom = kwargs.get('min_zoom', 0)
max_zoom = kwargs.get('max_zoom', 255)
if zoom >= 0:
min_zoom = max_zoom = zoom
con = mbtiles_connect(mbtiles_file, auto_commit)
cur = con.cursor()
optimize_connection(cur, False)
if import_into_existing_mbtiles:
existing_mbtiles_is_compacted = (con.execute("SELECT count(name) FROM sqlite_master WHERE type='table' AND name='images'").fetchone()[0] > 0)
else:
mbtiles_setup(cur)
image_format = 'png'
try:
metadata = json.load(open(os.path.join(directory_path, 'metadata.json'), 'r'))
image_format = metadata.get('format', 'png')
# Check that the old and new image formats are the same
if import_into_existing_mbtiles:
original_format = None
try:
original_format = cur.execute("SELECT value FROM metadata WHERE name='format'").fetchone()[0]
except:
pass
if original_format != None and image_format != original_format:
sys.stderr.write('The files to merge must use the same image format (png or jpg)\n')
sys.exit(1)
if not import_into_existing_mbtiles:
for name, value in metadata.items():
cur.execute('INSERT OR IGNORE INTO metadata (name, value) VALUES (?, ?)',
(name, value))
con.commit()
logger.info('metadata from metadata.json restored')
except IOError:
logger.warning('metadata.json not found')
existing_tiles = {}
if no_overwrite:
tiles = cur.execute("""SELECT zoom_level, tile_column, tile_row FROM tiles WHERE zoom_level>=? AND zoom_level<=?""",
(min_zoom, max_zoom))
t = tiles.fetchone()
while t:
z = str(t[0])
x = str(t[1])
y = str(t[2])
zoom = existing_tiles.get(z, None)
if not zoom:
zoom = {}
existing_tiles[z] = zoom
row = zoom.get(y, None)
if not row:
row = set()
zoom[y] = row
row.add(x)
t = tiles.fetchone()
count = 0
start_time = time.time()
for r1, zs, ignore in os.walk(os.path.join(directory_path, "tiles")):
for z in zs:
if int(z) < min_zoom or int(z) > max_zoom:
continue
for r2, xs, ignore in os.walk(os.path.join(r1, z)):
for x in xs:
for r2, ignore, ys in os.walk(os.path.join(r1, z, x)):
for y in ys:
y, extension = y.split('.')
if no_overwrite:
if x in existing_tiles.get(z, {}).get(y, set()):
logging.debug("Ignoring tile (%s, %s, %s)" % (z, x, y))
continue
if kwargs.get('flip_y', False) == True:
y = flip_y(z, y)
f = open(os.path.join(r1, z, x, y) + '.' + extension, 'rb')
tile_data = f.read()
f.close()
# Execute commands
if kwargs.get('command_list'):
tile_data = execute_commands_on_tile(kwargs['command_list'], image_format, tile_data)
if existing_mbtiles_is_compacted:
m = hashlib.md5()
m.update(tile_data)
tile_id = m.hexdigest()
cur.execute("""INSERT OR IGNORE INTO images (tile_id, tile_data) VALUES (?, ?)""",
(tile_id, sqlite3.Binary(tile_data)))
cur.execute("""REPLACE INTO map (zoom_level, tile_column, tile_row, tile_id) VALUES (?, ?, ?, ?)""",
(z, x, y, tile_id))
else:
cur.execute("""REPLACE INTO tiles (zoom_level, tile_column, tile_row, tile_data) VALUES (?, ?, ?, ?)""",
(z, x, y.split('.')[0], sqlite3.Binary(tile_data)))
count = count + 1
if (count % 100) == 0:
logger.debug("%s tiles imported (%d tiles/sec)" %
(count, count / (time.time() - start_time)))
logger.info("%d tiles imported." % (count))
con.commit()
con.close()
def compact_mbtiles(mbtiles_file):
logger.info("Compacting database %s" % (mbtiles_file))
con = mbtiles_connect(mbtiles_file)
cur = con.cursor()
optimize_connection(cur)
existing_mbtiles_is_compacted = (con.execute("SELECT count(name) FROM sqlite_master WHERE type='table' AND name='images'").fetchone()[0] > 0)
if existing_mbtiles_is_compacted:
logger.info("The mbtiles file is already compacted")
return
overlapping = 0
unique = 0
count = 0
chunk = 100
start_time = time.time()
total_tiles = con.execute("SELECT count(zoom_level) FROM tiles").fetchone()[0]
max_rowid = con.execute("SELECT max(rowid) FROM tiles").fetchone()[0]
logger.debug("%d total tiles" % total_tiles)
compaction_prepare(cur)
for i in range((max_rowid / chunk) + 1):
cur.execute("""SELECT zoom_level, tile_column, tile_row, tile_data FROM tiles WHERE rowid > ? AND rowid <= ?""",
((i * chunk), ((i + 1) * chunk)))
rows = cur.fetchall()
for r in rows:
z = r[0]
x = r[1]
y = r[2]
tile_data = r[3]
# Execute commands
if kwargs.get('command_list'):
tile_data = execute_commands_on_tile(kwargs['command_list'], "png", tile_data)
m = hashlib.md5()
m.update(tile_data)
tile_id = m.hexdigest()
try:
cur.execute("""INSERT INTO images (tile_id, tile_data) VALUES (?, ?)""",
(tile_id, sqlite3.Binary(tile_data)))
except:
overlapping = overlapping + 1
else:
unique = unique + 1
cur.execute("""REPLACE INTO map (zoom_level, tile_column, tile_row, tile_id) VALUES (?, ?, ?, ?)""",
(z, x, y, tile_id))
count = count + 1
if (count % 100) == 0:
logger.debug("%s tiles finished, %d unique, %d duplicates (%.1f%%, %.1f tiles/sec)" %
(count, unique, overlapping, (float(count) / float(total_tiles)) * 100.0, count / (time.time() - start_time)))
logger.info("%s tiles finished, %d unique, %d duplicates (100.0%%, %.1f tiles/sec)" % (count, unique, overlapping, count / (time.time() - start_time)))
compaction_finalize(cur)
con.commit()
con.close()
def mbtiles_to_disk(mbtiles_file, directory_path, **kwargs):
logger.info("Exporting database to disk: %s --> %s" % (mbtiles_file, directory_path))
delete_after_export = kwargs.get('delete_after_export', False)
no_overwrite = kwargs.get('no_overwrite', False)
zoom = kwargs.get('zoom', -1)
min_zoom = kwargs.get('min_zoom', 0)
max_zoom = kwargs.get('max_zoom', 255)
if zoom >= 0:
min_zoom = max_zoom = zoom
con = mbtiles_connect(mbtiles_file)
cur = con.cursor()
optimize_connection(cur)
if not os.path.isdir(directory_path):
os.mkdir(directory_path)
base_path = os.path.join(directory_path, "tiles")
if not os.path.isdir(base_path):
os.makedirs(base_path)
metadata = dict(con.execute('SELECT name, value FROM metadata').fetchall())
json.dump(metadata, open(os.path.join(directory_path, 'metadata.json'), 'w'), indent=4)
count = 0
start_time = time.time()
image_format = metadata.get('format', 'png')
total_tiles = con.execute("""SELECT count(zoom_level) FROM tiles WHERE zoom_level>=? AND zoom_level<=?""",
(min_zoom, max_zoom)).fetchone()[0]
sending_mbtiles_is_compacted = (con.execute("SELECT count(name) FROM sqlite_master WHERE type='table' AND name='images'").fetchone()[0] > 0)
tiles = cur.execute("""SELECT zoom_level, tile_column, tile_row, tile_data FROM tiles WHERE zoom_level>=? AND zoom_level<=?""",
(min_zoom, max_zoom))
t = tiles.fetchone()
while t:
z = t[0]
x = t[1]
y = t[2]
tile_data = t[3]
# Execute commands
if kwargs.get('command_list'):
tile_data = execute_commands_on_tile(kwargs['command_list'], image_format, tile_data)
if kwargs.get('flip_y', False) == True:
y = flip_y(z, y)
tile_dir = os.path.join(base_path, str(z), str(x))
if not os.path.isdir(tile_dir):
os.makedirs(tile_dir)
tile_file = os.path.join(tile_dir, '%s.%s' % (y, metadata.get('format', 'png')))
if no_overwrite == False or not os.path.isfile(tile_file):
f = open(tile_file, 'wb')
f.write(tile_data)
f.close()
count = count + 1
if (count % 100) == 0:
logger.debug("%s / %s tiles exported (%.1f%%, %.1f tiles/sec)" %
(count, total_tiles, (float(count) / float(total_tiles)) * 100.0, count / (time.time() - start_time)))
t = tiles.fetchone()
logger.info("%s / %s tiles exported (100.0%%, %.1f tiles/sec)" % (count, total_tiles, count / (time.time() - start_time)))
if delete_after_export:
logger.debug("WARNING: Removing exported tiles from %s" % (mbtiles_file))
if sending_mbtiles_is_compacted:
cur.execute("""DELETE FROM images WHERE tile_id IN (SELECT tile_id FROM map WHERE zoom_level>=? AND zoom_level<=?)""",
(min_zoom, max_zoom))
cur.execute("""DELETE FROM map WHERE zoom_level>=? AND zoom_level<=?""", (min_zoom, max_zoom))
else:
cur.execute("""DELETE FROM tiles WHERE zoom_level>=? AND zoom_level<=?""", (min_zoom, max_zoom))
optimize_database(cur, kwargs.get('skip_analyze', False), kwargs.get('skip_vacuum', False))
con.commit()
con.close()
