https://github.com/springmeyer/coalition

simple, fast nodejs + dynamic postgis tile server
https://github.com/springmeyer/coalition

Last synced: about 1 year ago
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simple, fast nodejs + dynamic postgis tile server

• Host: GitHub
• URL: https://github.com/springmeyer/coalition
• Owner: springmeyer
• Created: 2011-02-15T08:28:22.000Z (over 15 years ago)
• Default Branch: master
• Last Pushed: 2011-03-22T18:22:07.000Z (over 15 years ago)
• Last Synced: 2025-03-26T14:12:22.153Z (over 1 year ago)
• Language: JavaScript
• Homepage: https://github.com/springmeyer/coalition
• Size: 304 KB
• Stars: 44
• Watchers: 0
• Forks: 10
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

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README

          
# Coalition

An illustrative web server that combines nodejs, mapnik, and postgis.

## Depends

  NodeJS > 0.2.4

  

  Mapnik (latest trunk >r2397)

  

  Node-mapnik

  

  Npm / Spark

## Installation

  

  Install node:

  

    $ wget http://nodejs.org/dist/node-v0.4.0.tar.gz

    $ tar xvf node-v0.4.0.tar.gz

    $ ./configure

    $ make

    $ make install

  

  Install node-mapnik:

  

    $ git clone git://github.com/mapnik/node-mapnik.git

    $ cd node-mapnik

    $ ./configure

    $ make

    $ make install

    

  Install npm (node package manager)

  

    $ curl http://npmjs.org/install.sh | sh

  

  Install spark via npm:

    $ npm install spark

## Configuration

  Edit the postgis settings in 'server/settings.js' to match your system.

  

  Also, fixup the few hardcoded sample queries in 'public/index.html' to match your postgis tables.

## Usage

  

  Start the server by typing:

  

    $ ./run.sh

    

  Or:

  

    $ spark

    

  Then visit http://localhost:3000/. Choose a style type and a postgis subquery.

## A note on styles

  Mapnik supports applying arbitrary styles to layers, but for the results 

  to be reasonable you have to apply reasonable styles. For example a PointSymbolizer

  will work against either point geometries or polygon geometries, but a PolygonSymbolizer

  will not render anything if applied to point geometries.