function PointZone(x, y) {
      var _this;
      _this = _Zone.call(this) || this;

      /**
       * The x-coordinate of the point.
       * @type {number}
       */
      _this.x = x;

      /**
       * The y-coordinate of the point.
       * @type {number}
       */
      _this.y = y;
      return _this;
    }
Creates a new PointZone.
@param {number} x - The x-coordinate of the point.
@param {number} y - The y-coordinate of the point.