cesium获取当前相机视角（利用浏览器控制台）

const camera = viewer.camera;
const position = camera.positionCartographic;
const heading = camera.heading;
const pitch = camera.pitch;
const roll = camera.roll;

const x = Cesium.Cartesian3.fromRadians(position.longitude, position.latitude, position.height).x;
const y = Cesium.Cartesian3.fromRadians(position.longitude, position.latitude, position.height).y;
const z = Cesium.Cartesian3.fromRadians(position.longitude, position.latitude, position.height).z;

console.log({
  "position": {
    x,
    y,
    z
  },
  "heading": heading,
  "pitch": pitch,
  "roll": roll
});