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Landez is a python toolbox to manipulate map tiles.

Project description

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

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

For building MBTiles, Landez embeds mbutil from Mapbox at the final stage. The land covered is specified using a list of bounding boxes and zoom levels.


Landez is pure python and has no external dependency.

sudo easy_install landez

However, it requires mapnik if the tiles are rendered locally.

sudo aptitude install python-mapnik

And PIL to blend tiles together or export arranged tiles into images.

sudo aptitude install python-imaging


Building MBTiles files

Remote tiles

Using a remote tile service ( by default):

import logging
from landez import MBTilesBuilder


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

Please respect Tile usage policies <>

Local rendering

Using mapnik to render tiles:

import logging
from landez import MBTilesBuilder


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

And with UTFGrids:

import logging
from landez import MBTilesBuilder


mb = MBTilesBuilder(stylefile="yourstyle.xml",
                    grid_fields=["field1", "field2", "field3", ...] ,
mb.add_coverage(bbox=(-180, -90, 180, 90),
                zoomlevels=[0, 1, 2, 3])

From an other MBTiles file

import logging
from landez import MBTilesBuilder


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

From a WMS server

mb = MBTilesBuilder(wms_server="",

Blend tiles together

Merge multiple sources of tiles (URL, WMS, MBTiles, Mapnik stylesheet) together. (requires python PIL)

For example, build a new MBTiles by blending tiles of a MBTiles on top of OpenStreetMap tiles :

mb = MBTilesBuilder(filepath="merged.mbtiles")
overlay = TilesManager(mbtiles_file="carto.mbtiles")

Or composite a WMS layer with OpenStreetMap using transparency (40%):

mb = MBTilesBuilder(wms_server="",
overlay = TilesManager(remote=True)
mb.add_layer(overlay, 0.4)

Export Images

Assemble and arrange tiles together into a single image. (requires python PIL)

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

import logging
from landez import ImageExporter


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

Add post-processing filters

Convert map tiles to gray scale, more suitable for information overlay :

from landez.filters import GrayScale

ie = ImageExporter()

Replace a specific color by transparent pixels (i.e. color to alpha, a-la-Gimp) :

from landez.filters import ColorToAlpha

overlay = TileManager()
overlay.add_filter(ColorToAlpha('#ffffff'))  # white will be transparent

ie = ImageExporter()

Extract MBTiles content

from landez.sources import MBTilesReader

mbreader = MBTilesReader("yourfile.mbtiles")

# Metadata
print mbreader.metadata()

# Zoom levels
print mbreader.zoomlevels()

# Image tile
with open('tile.png', 'wb') as out:
    out.write(mbreader.tile(z, x, y))

# UTF-Grid tile
print mbreader.grid(z, x, y, 'callback')

Manipulate tiles

from landez import MBTilesBuilder

# From a TMS tile server
# tm = TilesManager(tiles_url="http://{s}{z}/{x}/{y}.png")

# From a MBTiles file
tm = TilesManager(mbtiles_file="yourfile.mbtiles")

tiles = tm.tileslist(bbox=(-180.0, -90.0, 180.0, 90.0),
                     zoomlevels=[0, 1])
for tile in tiles:
    tilecontent = tm.tile(tile)  # download, extract or take from cache

Cache tiles are stored using TMS scheme by default (with y value flipped). It can be changed to WMTS (a.k.a xyz) :

tm = TilesManager(your_sources_options, cache=True, cache_scheme="wmts")

Run tests

Run tests with nosetests (if you are working in a virtualenv, don’t forget to install nose in it!):

cd landez

The Mapnik stylesheet for the test about grid content comes from <>



  • Lesser GNU Public License


2.5.0 (2019-04-16)

  • Add support of Python 3.

2.4.1 (2019-03-13)

  • Do not try to get tiles again when tiles doesn’t exist.

2.4.0 (2017-03-02)

  • Do not crash when overlay tile data is not a valid image

  • Correctly generate metadata for zoom levels

  • Add support for tms mbtiles

  • Correct tile box calculation for case when floating point value is an integer

  • Correctly generate metadata for zoom levels

  • Use the full path to construct the cache directory, as otherwise different tiles sets on the same server are considered to be the same one

  • Added a name metadata to prevent Maptiler crash

2.3.0 (2014-11-18)

  • Add headers to WMS sources if specified (thanks @sempixel!)

2.2.0 (2014-09-22)

  • Add delay between tiles downloads retries (by @kiorky)

  • Add option to ignore errors during MBTiles creation (e.g. download errors)

2.1.1 (2013-08-27)

  • Do not hard-code grid(); JSONP callback.

2.1.0 (2013-08-27)

  • Add TMS support (ebrehault)

  • Add default subdomains argument for TileSource

  • Add ability to set HTTP headers for tiles

  • Fix file corruption on Windows (by @osuchw)

2.0.3 (2013-05-03)

  • Fix Mapnik signature on render()

2.0.2 (2012-06-21)

  • Prevent the whole image to be converted to grayscale

  • Explicitly check http status code at tiles download

2.0.1 (2012-05-29)

  • Fix infinite loop on blending layers

2.0.0 (2012-05-25)

  • Rework cache mechanism

  • Jpeg tiles support (#14)

  • Remove use of temporary files

  • Image post-processing (#11)

2.0.0-alpha (2012-05-23)

  • Refactoring of whole stack

1.8.2 (2012-03-27)

  • Fix Mapnik rendering

1.8.1 (2012-02-24)

  • Fix MBTiles cache cleaning

1.8 (2012-02-24)

  • WMS support

  • Tiles compositing

1.7 (2012-02-17)

  • Catch Sqlite exceptions

1.6 (2012-02-08)

  • UTF-Grid support for MBTiles files

1.5 (2011-12-07)

  • Subdomain support for tiles servers

  • Low level tiles manipulation

  • Use i18n

1.4 (2011-10-17)

  • Remove extra logging message of mbutil

1.3 (2011-09-23)

  • Export set of tiles into single image

1.2 (2011-06-21)

  • Raise exception if no tiles in coverages

1.1 (2012-04-18)

  • Move internals to landez module

  • Split projection into separate module

1.0 (2011-04-18)

  • Initial working version

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