code: function positionToMercator(position) {
      var lng = position[0];
      var lat = Math.max(Math.min(position[1], 89.99999), -89.99999);
      return [degToRad(lng) * EarthRadius, EarthRadius/2.0 * Math.log( (1.0 + Math.sin(degToRad(lat))) / (1.0 - Math.sin(degToRad(lat))) )];
    }
docs: /*
  Public: Convert a GeoJSON Position object to Web Mercator (102100)