mapnik / node-mapnik-sample-code

Sample code demonstrating usage of node-mapnik

node-mapnik examples

Depends

• Node.js v0.10.x
• Mapnik node.js bindings (node-mapnik)

Install node-mapnik like:

npm install mapnik@latest

A few examples have other dependencies. Install all possible like:

npm install express generic-pool get

Examples are designed to be run from the root like:

node ./render/app.js ./stylesheet.xml map.png

Examples are arranged into topic directories:

• render - Simple map to image renderer example. Start here.
• image - Server that just responds with a single image.
• tile - Example tileservers. Also includes PostGIS example. (see https://github.com/springmeyer/coalition for a fuller example with PostGIS)
• wms - Example WMS servers (see https://github.com/mapbox/landspeed.js for a real WMS server)
• memory_datasource - rendering of native javascript objects using in memory features created up front

Other files

• utils - helper methods
• data - world map shapefile used in examples
• stylesheet.xml - sample mapnik xml stylesheet

Using examples

To run most examples, read the code then execute their app.js file.

In tile examples you can view the output in polymaps via tile/index.html