// This example shows how to use node-mapnik to render

// a map to a image on disk

//

// run command: node ./render/app.js ./stylesheet.xml map.png

//

// expected output: https://github.com/mapnik/node-mapnik-sample-code/blob/master/outputs/map.png

var mapnik = require('mapnik');

var sys = require('fs');

var child_process = require('child_process');

var usage = 'usage: render.js <stylesheet> <image>';

var stylesheet = process.argv[2];

if (!stylesheet) {

console.log(usage);

process.exit(1);

}

var image = process.argv[3];

if (!image) {

console.log(usage);

process.exit(1);

}

// register shapefile plugin

if (mapnik.register_default_input_plugins) mapnik.register_default_input_plugins();

var map = new mapnik.Map(600, 400);

map.loadSync(stylesheet);

map.zoomAll();

map.renderFileSync(image);

console.log('rendered map to ' + image);

if (process.argv.indexOf('--no-open') == -1) {

child_process.exec('open ' + image);

}