node-mapnik usage example

usage.js

var fs = require('fs');

var map = new mapnik.Map(256, 256),
	img = new mapnik.Image(256, 256),
	data = fs.readFileSync('/path/to/data.shp'),
	vectortile = new mapnik.VectorTile(0,0,0);

// add shapefile to vector tile
vectortile.addData(data, function(err) {
	if (err) throw err;

	// render data to an image
	vectortile.render(map, image, function(err, image) {
		if (err) throw err;

		// save image
		image.save('/path/to/newimage.png', 'png32');
	});
});