def __init__(self, demdir, tiledir, tmpdir, source):
"""
"""
cache = Disk(tiledir, dirs='safe')
config = Configuration(cache, '.')
Layer.__init__(self, config, SphericalMercator(), Metatile())
self.provider = Provider(self, demdir, tmpdir, source)
layer = config.layers[options.layer]
layer.write_cache = True # Override to make seeding guaranteed useful.
verbose = options.verbose
extension = options.extension
enable_retries = options.enable_retries
progressfile = options.progressfile
src_mbtiles = options.mbtiles_input
if src_mbtiles:
layer.provider = MBTiles.Provider(layer, src_mbtiles)
n, t, v, d, format, b = MBTiles.tileset_info(src_mbtiles)
extension = format or extension
if options.outputdirectory and options.mbtiles_output:
cache1 = Disk(options.outputdirectory, dirs='portable', gzip=[])
cache2 = MBTiles.Cache(options.mbtiles_output, extension,
options.layer)
config.cache = Multi([cache1, cache2])
elif options.outputdirectory:
config.cache = Disk(options.outputdirectory,
dirs='portable',
gzip=[])
elif options.mbtiles_output:
config.cache = MBTiles.Cache(options.mbtiles_output, extension,
options.layer)
lat1, lon1, lat2, lon2 = options.bbox
south, west = min(lat1, lat2), min(lon1, lon2)
