a stylish alternative for caching your map tiles
TileStache is a Python-based server application that can serve up map tiles based on rendered geographic data. You might be familiar with TileCache, the venerable open source WMS server from MetaCarta. TileStache is similar, but we hope simpler and better-suited to the needs of designers and cartographers.
import TileStache
import ModestMaps
config = {
"cache": {"name": "Test"},
"layers": {
"example": {
"provider": {"name": "mapnik", "mapfile": "examples/style.xml"},
"projection": "spherical mercator"
}
}
}
# like http://tile.openstreetmap.org/1/0/0.png
coord = ModestMaps.Core.Coordinate(0, 0, 1)
config = TileStache.Config.buildConfiguration(config)
type, bytes = TileStache.getTile(config.layers['example'], coord, 'png')
open('tile.png', 'w').write(bytes)
- ModestMaps: http://modestmaps.com, http://github.com/migurski/modestmaps-py
- Python Imaging Library (Pillow): https://python-pillow.org
- Simplejson: https://github.com/simplejson/simplejson (optional if using >= python 2.6)
- mapnik: http://mapnik.org (optional)
- werkzeug: http://werkzeug.pocoo.org/ (optional)
- mapbox-vector-tile: https://github.com/tilezen/mapbox-vector-tile (optional if using TileStache.Goodies.VecTiles:Provider)
Install the pure python modules with pip:
sudo pip install -U pillow modestmaps simplejson werkzeug uuid mapbox-vector-tile
Install pip (http://www.pip-installer.org/) like:
curl -O -L https://bootstrap.pypa.io/get-pip.py
sudo python get-pip.py
Install Mapnik via instructions at:
http://mapnik.org/pages/downloads.html
TileStache can be run from the download directory as is. For example the scripts:
tilestache-render.py tilestache-seed.py tilestache-server.py
Can all be run locally like:
./scripts/tilestache-server.py
To install globally do:
python setup.py install
- Note: you may need to prefix that command with 'sudo' to have permissions to fully install TileStache.
To make sure TileStache is working start the development server:
./scripts/tilestache-server.py
Then open a modern web browser and you should be able to preview tiles at:
http://localhost:8080/osm/preview.html
This is a previewer that uses ModestMaps and OpenStreetMap tiles from http://tile.osm.org as defined in the default config file 'tilestache.cfg'
The next step is to learn how build custom layers and serve them.
See the docs for details.
Rendering providers:
- Mapnik
- Proxy
- Vector
- Templated URLs
Caching backends:
- Local disk
- Test
- Memcache
- S3
The design of TileStache focuses on approachability at the expense of cleverness or completeness. Our hope is to make it easy for anyone to design a new map of their city, publish a fresh view of their world, or even build the next 8-Bit NYC (http://8bitnyc.com).
- Small
The core of TileStache is intended to have a small code footprint. It should be quick and easy to to understand what the library is doing and why, based on common entry points like included CGI scripts. Where possible, dynamic programming "magic" is to be avoided, in favor of basic, procedural and copiously-documented Python.
- Pluggable
We want to accept plug-ins and extensions from outside TileStache, and offer TileStache itself as an extension for other systems. It must be possible to write and use additional caches or renderers without having to modify the core package itself, extend classes from inside the package, or navigate chains of class dependencies. Duck typing and stable interfaces win.
- Sensible Defaults
The default action of a configured TileStache instance should permit the most common form of interaction: a worldwide, spherical-mercator upper-left oriented tile layout compatible with those used by OpenStreetMap, Google, Bing Maps, Yahoo! and others. It should be possible to make TileStache do whatever is necessary to support any external system, but we eschew complex, impenetrable standards in favor of pragmatic, fast utility with basic web clients.
BSD, see LICENSE file.
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