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Quick start guide

Build dependencies

The following software is required to build geojs from source:

For testing and development, the following additional software is required:

In addition, the following python modules are recommended for development and testing of geojs.

For testing WebGL in a headless environment, the additional packages are needed:

For an example on how to install all packages for a specific OS, see :ref:`Ubuntu Provisioning <ubuntu-development>`.

Getting the source code

Get the latest geojs source code from our GitHub repository by issue this command in your terminal.

git clone https://github.com/OpenGeoscience/geojs.git

This will put all of the source code in a new directory called geojs.

Building the source

Inside the new geojs directory, you can simply run the following commands to install all dependent javascript libraries and bundle together everything that is needed.

npm install
npm run build

The compiled javascript libraries will be named geo.min.js and geo.lean.min.js in dist/built. The first file contains geojs including all optional dependencies. The second file is a version of geojs without any of the third party dependencies such as d3 and Hammer; if you want to use the lean bundle but need any of these dependencies, you must include them first in your page and expose them in global scope under their standard names. The bundled libraries are minified, but source maps are provided.

Using the library

The following html gives an example of including all of the necessary files and creating a basic full map using the osmLayer class.

<head>
    <script src="/built/geo.min.js"></script>

    <style>
        html, body, #map {
            margin: 0;
            width: 100%;
            height: 100%;
            overflow: hidden;
        }
    </style>

    <script>
    $(function () {
        geo.map({'node': '#map'}).createLayer('osm');
    });
    </script>
</head>
<body>
    <div id="map"></div>
</body>

You can save this page into a new file at dist/mymap.html. To view your new creation, start up a web server with the command

npm run examples

Now, if you open up http://localhost:8082/mymap.html in your favorite webgl enabled browser, you should see a map like the following:

images/osmmap.png

Additionally, you will be able to see all of the built-in examples at http://localhost:8082/examples with the example server running.