What is this ?

Openstreetmap lovers, would you like to make big maps from your favorite tiles ?

This script downloads all the tiles from a specific server and then merge them into big images.

This example used toner-background tiles from stamen, and the result is really great (Paris Center)

How to use ?

0. clone with git@github.com:gasp/osm_tiles_merge.git, install with npm i and configure tiles.js

1. run with node load.js && php merge.php

2.wait you shall have a lot of logs to read

3.fail tweak your machine performance (especially php.ini, swap)

4.restart better luck next time

Why is it so ?

Because this is quick-and-dirty

Why using some PHP and some Nodejs ?

Because phpGD is really easy to use.