请问怎么实现地球自转效果？谢谢！

[newboy6890]

请问要实现地球自转的效果，怎么做呢？谢谢！

[zouyaoji]

const $vc = useVueCesium()

let date = Date.now()
const rotate = () => {
  var a = 0.6
  var t = Date.now()
  var n = (t - date) / 1e3
  date = t
  $vc.viewer.scene.camera.rotate(Cesium.Cartesian3.UNIT_Z, -a * n)
}

    $vc.creatingPromise.then(() => {
      const control = $vc.viewer.scene.screenSpaceCameraController
      $vc.viewer.clock.onTick.addEventListener(rotate)
      control.enableRotate = false
      control.enableTranslate = false
      control.enableZoom = false
      control.enableTilt = false
      control.enableLook = false

      setTimeout(() => {
        $vc.viewer.clock.onTick.removeEventListener(rotate)
      }, 5500)
    })