Sphere Mollweide example

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<!DOCTYPE html>
<html>
<head>
<title>Sphere Mollweide example</title>
<script src="https://code.jquery.com/jquery-1.11.2.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="http://openlayers.org/en/v3.9.0/css/ol.css" type="text/css">
<script src="http://openlayers.org/en/v3.9.0/build/ol.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/proj4js/2.3.6/proj4.js"></script>
</head>
<body>
<div class="container-fluid">

<div class="row-fluid">
  <div class="span12">
    <div id="map" class="map"></div>
  </div>
</div>

</div>
<script>
proj4.defs('ESRI:53009', '+proj=moll +lon_0=0 +x_0=0 +y_0=0 +a=6371000 ' +
    '+b=6371000 +units=m +no_defs');

// Configure the Sphere Mollweide projection object with an extent,
// and a world extent. These are required for the Graticule.
var sphereMollweideProjection = new ol.proj.Projection({
  code: 'ESRI:53009',
  extent: [-9009954.605703328, -9009954.605703328,
    9009954.605703328, 9009954.605703328],
  worldExtent: [-179, -89.99, 179, 89.99]
});

var map = new ol.Map({
  keyboardEventTarget: document,
  layers: [
    new ol.layer.Vector({
      source: new ol.source.Vector({
        url: 'data/geojson/countries-110m.geojson',
        format: new ol.format.GeoJSON()
      })
    })
  ],
  renderer: 'canvas',
  target: 'map',
  view: new ol.View({
    center: [0, 0],
    projection: sphereMollweideProjection,
    resolutions: [65536, 32768, 16384, 8192, 4096, 2048],
    zoom: 0
  })
});

var graticule = new ol.Graticule({
  map: map
});

</script>
</body>
</html>