项目地址

https://github.com/zhengjie9510/webgis-demo

实现效果

实现方法

let angle = 0.0
viewer.camera.lookAt(position, new Cesium.HeadingPitchRange(Cesium.Math.toRadians(angle), Cesium.Math.toRadians(-30), 2000))
viewer.clock.onTick.addEventListener(() => {
  angle += 0.5 * viewer.clock.multiplier;
  const heading = Cesium.Math.toRadians(angle)
  const pitch = viewer.camera.pitch
  viewer.camera.lookAt(position, new Cesium.HeadingPitchRange(heading, pitch, 2000))
});