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#!/usr/bin/env python
""" will warm your cache.
This script is *deprecated* and will be removed in a future TileStache 2.0.
This script is intended to be run directly. This example will save two tiles
for San Francisco and Oakland to local temporary files: -c ./config.json -l osm 12/655/1582.png 12/656/1582.png
Output for this sample might look like this:
...where each line corresponds to one of the given coordinates, in order.
You are expected to use these files and then dispose of them.
See ` --help` for more information.
import re
import os
from tempfile import mkstemp
from optparse import OptionParser
from TileStache import parseConfigfile, getTile
from TileStache.Core import KnownUnknown
from ModestMaps.Core import Coordinate
parser = OptionParser(usage="""%prog [options] [coord...]
Each coordinate in the argument list should look like "12/656/1582.png", similar
to URL paths in web server usage. Coordinates are processed in order, each one
rendered to an image file in a temporary location and output to stdout in order.
Configuration and layer options are required; see `%prog --help` for info.""")
parser.add_option('-c', '--config', dest='config',
help='Path to configuration file.')
parser.add_option('-l', '--layer', dest='layer',
help='Layer name from configuration.')
pathinfo_pat = re.compile(r'^(?P<z>\d+)/(?P<x>\d+)/(?P<y>\d+)\.(?P<e>\w+)$')
if __name__ == '__main__':
options, paths = parser.parse_args()
if options.config is None:
raise KnownUnknown('Missing required configuration (--config) parameter.')
if options.layer is None:
raise KnownUnknown('Missing required layer (--layer) parameter.')
config = parseConfigfile(options.config)
if options.layer not in config.layers:
raise KnownUnknown('"%s" is not a layer I know about. Here are some that I do know about: %s.' % (options.layer, ', '.join(sorted(config.layers.keys()))))
layer = config.layers[options.layer]
coords = []
for path in paths:
path_ = pathinfo_pat.match(path)
if path_ is None:
raise KnownUnknown('"%s" is not a path I understand. I was expecting something more like "0/0/0.png".' % path)
row, column, zoom, extension = [ for p in 'yxze']
coord = Coordinate(int(row), int(column), int(zoom))
except KnownUnknown, e:
for coord in coords:
# render
mimetype, content = getTile(layer, coord, extension)
# save
handle, filename = mkstemp(prefix='tile-', suffix='.'+extension)
os.write(handle, content)
# inform
print filename
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