/usr/bin/tilestache-compose is in tilestache 1.51.5-1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 | #!/usr/bin/python
from sys import stderr, path
from tempfile import mkstemp
from thread import allocate_lock
from os import close, write, unlink
from optparse import OptionParser
from os.path import abspath
import ModestMaps
mmaps_version = tuple(map(int, getattr(ModestMaps, '__version__', '0.0.0').split('.')))
if mmaps_version < (1, 3, 0):
raise ImportError('tilestache-compose.py requires ModestMaps 1.3.0 or newer.')
#
# More imports can be found below, after the --include-path option is known.
#
class Provider (ModestMaps.Providers.IMapProvider):
""" Wrapper for TileStache Layer objects that makes them behave like ModestMaps Provider objects.
Requires ModestMaps 1.3.0 or better to support "file://" URLs.
"""
def __init__(self, layer, verbose=False, ignore_cached=None):
self.projection = layer.projection
self.layer = layer
self.files = []
self.verbose = bool(verbose)
self.ignore_cached = bool(ignore_cached)
self.lock = allocate_lock()
#
# It's possible that Mapnik is not thread-safe, best to be cautious.
#
self.threadsafe = self.layer.provider is not TileStache.Providers.Mapnik
def tileWidth(self):
return 256
def tileHeight(self):
return 256
def getTileUrls(self, coord):
""" Return tile URLs that start with file://, by first retrieving them.
"""
if self.threadsafe or self.lock.acquire():
mime_type, tile_data = TileStache.getTile(self.layer, coord, 'png', self.ignore_cached)
handle, filename = mkstemp(prefix='tilestache-compose-', suffix='.png')
write(handle, tile_data)
close(handle)
self.files.append(filename)
if not self.threadsafe:
# must be locked, right?
self.lock.release()
if self.verbose:
size = len(tile_data) / 1024.
printlocked(self.lock, self.layer.name() + '/%(zoom)d/%(column)d/%(row)d.png' % coord.__dict__, '(%dKB)' % size)
return ('file://' + abspath(filename), )
def __del__(self):
""" Delete any tile that was saved in self.getTileUrls().
"""
for filename in self.files:
unlink(filename)
class BadComposure(Exception):
pass
def printlocked(lock, *stuff):
"""
"""
if lock.acquire():
print ' '.join([str(thing) for thing in stuff])
lock.release()
parser = OptionParser(usage="""tilestache-compose.py [options] file
There are three ways to set a map coverage area.
1) Center, zoom, and dimensions: create a map of the specified size,
centered on a given geographical point at a given zoom level:
tilestache-compose.py -c config.json -l layer-name -d 800 800 -n 37.8 -122.3 -z 11 out.jpg
2) Extent and dimensions: create a map of the specified size that
adequately covers the given geographical extent:
tilestache-compose.py -c config.json -l layer-name -d 800 800 -e 36.9 -123.5 38.9 -121.2 out.png
3) Extent and zoom: create a map at the given zoom level that covers
the precise geographical extent, at whatever pixel size is necessary:
tilestache-compose.py -c config.json -l layer-name -e 36.9 -123.5 38.9 -121.2 -z 9 out.jpg""")
defaults = dict(center=(37.8044, -122.2712), zoom=14, dimensions=(900, 600), verbose=True)
parser.set_defaults(**defaults)
parser.add_option('-c', '--config', dest='config',
help='Path to configuration file.')
parser.add_option('-l', '--layer', dest='layer',
help='Layer name from configuration.')
parser.add_option('-n', '--center', dest='center', nargs=2,
help='Geographic center of map. Default %.4f, %.4f.' % defaults['center'], type='float',
action='store')
parser.add_option('-e', '--extent', dest='extent', nargs=4,
help='Geographic extent of map. Two lat, lon pairs', type='float',
action='store')
parser.add_option('-z', '--zoom', dest='zoom',
help='Zoom level. Default %(zoom)d.' % defaults, type='int',
action='store')
parser.add_option('-d', '--dimensions', dest='dimensions', nargs=2,
help='Pixel width, height of output image. Default %d, %d.' % defaults['dimensions'], type='int',
action='store')
parser.add_option('-v', '--verbose', dest='verbose',
help='Make a bunch of noise.',
action='store_true')
parser.add_option('-i', '--include-path', dest='include_paths',
help="Add the following colon-separated list of paths to Python's include path (aka sys.path)")
parser.add_option('-x', '--ignore-cached', action='store_true', dest='ignore_cached',
help='Re-render every tile, whether it is in the cache already or not.')
if __name__ == '__main__':
(options, args) = parser.parse_args()
if options.include_paths:
for p in options.include_paths.split(':'):
path.insert(0, p)
import TileStache
try:
if options.config is None:
raise TileStache.Core.KnownUnknown('Missing required configuration (--config) parameter.')
if options.layer is None:
raise TileStache.Core.KnownUnknown('Missing required layer (--layer) parameter.')
config = TileStache.parseConfig(options.config)
if options.layer not in config.layers:
raise TileStache.Core.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()))))
provider = Provider(config.layers[options.layer], options.verbose, options.ignore_cached)
try:
outfile = args[0]
except IndexError:
raise BadComposure('Error: Missing output file.')
if options.center and options.extent:
raise BadComposure("Error: bad map coverage, center and extent can't both be set.")
elif options.extent and options.dimensions and options.zoom:
raise BadComposure("Error: bad map coverage, dimensions and zoom can't be set together with extent.")
elif options.center and options.zoom and options.dimensions:
lat, lon = options.center[0], options.center[1]
width, height = options.dimensions[0], options.dimensions[1]
dimensions = ModestMaps.Core.Point(width, height)
center = ModestMaps.Geo.Location(lat, lon)
zoom = options.zoom
map = ModestMaps.mapByCenterZoom(provider, center, zoom, dimensions)
elif options.extent and options.dimensions:
latA, lonA = options.extent[0], options.extent[1]
latB, lonB = options.extent[2], options.extent[3]
width, height = options.dimensions[0], options.dimensions[1]
dimensions = ModestMaps.Core.Point(width, height)
locationA = ModestMaps.Geo.Location(latA, lonA)
locationB = ModestMaps.Geo.Location(latB, lonB)
map = ModestMaps.mapByExtent(provider, locationA, locationB, dimensions)
elif options.extent and options.zoom:
latA, lonA = options.extent[0], options.extent[1]
latB, lonB = options.extent[2], options.extent[3]
locationA = ModestMaps.Geo.Location(latA, lonA)
locationB = ModestMaps.Geo.Location(latB, lonB)
zoom = options.zoom
map = ModestMaps.mapByExtentZoom(provider, locationA, locationB, zoom)
else:
raise BadComposure("Error: not really sure what's going on.")
except BadComposure, e:
print >> stderr, parser.usage
print >> stderr, ''
print >> stderr, '%s --help for possible options.' % __file__
print >> stderr, ''
print >> stderr, e
exit(1)
if options.verbose:
print map.coordinate, map.offset, '->', outfile, (map.dimensions.x, map.dimensions.y)
map.draw(False).save(outfile)
|