cesium聚焦点位并倾斜角度

1.使用lookAt以及lookAtTransform

const fitView = (option, callback) => {
    let { center, pitch, range } = option;
    const heading = Cesium.Math.toRadians(0.0);
    const pitchs = Cesium.Math.toRadians(pitch);
    cesiumIns.value.viewer.camera.flyTo({
      destination: Cesium.Cartesian3.fromDegrees(center[0], center[1], range),
      orientation: {
        heading,
        pitch: pitchs
      },
      duration: 2,
      complete: () => {
        cesiumIns.value.viewer.camera.lookAt(
          Cesium.Cartesian3.fromDegrees(center[0], center[1], 0),
          new Cesium.HeadingPitchRange(heading, pitchs, range)
        );
        cesiumIns.value.viewer.camera.lookAtTransform(Cesium.Matrix4.IDENTITY);
        callback && callback();
      }
    });
  };

2.创建Entity后聚焦，聚焦后清除Entity