let _this = this;
      var rider = _this.viewer.entities.getById(
        "b03de0dffb724f0f8796f45eb00d51c8"
      );
      _this.viewer.flyTo(rider).then(function() {
        _this.viewer.trackedEntity = rider;
        _this.viewer.selectedEntity = _this.viewer.trackedEntity;
        // _this.viewer.clock.multiplier = 30;
        // _this.viewer.clock.shouldAnimate = false;
      });

以上代码可以实现，通过entity id选中图元，同时视角定位到图元。