export var EPSG3857 = Util.extend({}, Earth, {
  code: "EPSG:3857",
  projection: SphericalMercator,
  transformation: function () {
    var scale = 0.5 / (math.PI * SphericalMercator.R);
    return toTransformation(scale, 0.5, -scale, 0.5);
  },
});

export var EPSG900913 = Util.extend({}, EPSG3857, {
  code: "EPSG:900913",
});