Add a sphere mollweide example

examples/sphere-mollweide.js

@@ -0,0 +1,42 @@
+goog.require('ol.Graticule');
+goog.require('ol.Map');
+goog.require('ol.View');
+goog.require('ol.layer.Vector');
+goog.require('ol.proj');
+goog.require('ol.source.GeoJSON');
+
+
+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 = ol.proj.get('ESRI:53009');
+sphereMollweideProjection.setExtent([
+  -9009954.605703328, -9009954.605703328,
+  9009954.605703328, 9009954.605703328]);
+sphereMollweideProjection.setWorldExtent([-179, -90, 179, 90]);
+
+var map = new ol.Map({
+  keyboardEventTarget: document,
+  layers: [
+    new ol.layer.Vector({
+      source: new ol.source.GeoJSON({
+        projection: sphereMollweideProjection,
+        url: 'data/geojson/countries-110m.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
+});