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Build a MBTiles file from a tiles server or a Mapnik stylesheet.

Project description

Landez manipulates tiles, builds MBTiles and arrange tiles together into single images.

Tiles can either be obtained from a remote tile service URL, from a local Mapnik stylesheet or from MBTiles files.

For building MBTiles, it uses mbutil from Mapbox https://github.com/mapbox/mbutil at the final stage. The land covered is specified using a list of bounding boxes and zoom levels.

INSTALL

Landez requires nothing but python remote mode (specifying a tiles URL), but requires mapnik if the tiles are drawn locally.

sudo aptitude install python-mapnik

And PIL to export arranged tiles into images.

sudo aptitude install python-imaging

USAGE

Building MBTiles files

Remote tiles

Using a remote tile service (Cloudmade by default):

import logging
from landez import MBTilesBuilder

logging.basicConfig(level=logging.DEBUG)

mb = MBTilesBuilder(remote=True, cache=False)
mb.add_coverage(bbox=(-180.0, -90.0, 180.0, 90.0),
                    zoomlevels=[0, 1])
mb.run()

Please respect Tile usage policies <http://wiki.openstreetmap.org/wiki/Tile_usage_policy>

Local rendering

Using mapnik to render tiles:

import logging
from landez import MBTilesBuilder

logging.basicConfig(level=logging.DEBUG)

mb = MBTilesBuilder(stylefile="yourstyle.xml", filepath="dest.mbtiles")
mb.add_coverage(bbox=(-180.0, -90.0, 180.0, 90.0),
                zoomlevels=[0, 1])
mb.run()

From an other MBTiles file

import logging
from landez import MBTilesBuilder

logging.basicConfig(level=logging.DEBUG)

mb = MBTilesBuilder(mbtiles_file="yourfile.mbtiles", filepath="dest.mbtiles")
mb.add_coverage(bbox=(-180.0, -90.0, 180.0, 90.0),
                zoomlevels=[0, 1])
mb.run()

Export Images

Specify tiles sources in the exact same way as for building MBTiles files.

import logging
from landez import ImageExporter

logging.basicConfig(level=logging.DEBUG)

ie = ImageExporter(mbtiles_file="yourfile.mbtiles")
ie.export_image(bbox=(-180.0, -90.0, 180.0, 90.0), zoomlevel=3, imagepath="image.png")

AUTHORS

LICENSE

  • Lesser GNU Public License

Project details


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