Get Continuous Camera Position values

CesiumJS
1

Hi,

I'm trying to get camera position in a continuous manner(latitude, longitude, altitude, pitch, roll etc), e.g. if I try to set camera position for a object on map, I move it continuously until desired camera location is set.
I used LEFT_DOWN screen space event handler to capture camera details. Is there any better way to do this?? Sometimes even if I click I don't get new camera values, so not sure if that is changed from last LEFT DOWN EVENT.
I'm trying to achieve higher precision.

Here is sample code:

handler2 = new Cesium.ScreenSpaceEventHandler(viewer.scene.canvas);

handler2.setInputAction(function(movement) {
  //console.log("Left down");
  var cartesian = viewer.camera.pickEllipsoid(movement.position, ellipsoid);

  var ray = viewer.camera.getPickRay(movement.position);
  var position = viewer.scene.globe.pick(ray, viewer.scene);
  if (cartesian) {
    var cartographic = ellipsoid.cartesianToCartographic(cartesian);
    var cartographicAlt = ellipsoid.cartesianToCartographic(viewer.scene.camera.positionWC).height;
    longitudeString = Cesium.Math.toDegrees(ellipsoid.cartesianToCartographic(viewer.scene.camera.positionWC).longitude);
    latitudeString = Cesium.Math.toDegrees(ellipsoid.cartesianToCartographic(viewer.scene.camera.positionWC).latitude);
    altitudeString = cartographicAlt;
    pitchString = Cesium.Math.toDegrees(viewer.scene.camera.pitch);
    rollString = Cesium.Math.toDegrees(viewer.scene.camera.roll);
    headingString = Cesium.Math.toDegrees(viewer.scene.camera.heading);
    tiltString = pitchString + 90;
    
  }
}, Cesium.ScreenSpaceEventType.LEFT_DOWN);

2

You could listen for the camera’s changed event, and make sure to set the percentageChanged to a lower value than the default so it detects changes as sensitive as you need. There’s an example of this in the synced views code example:

https://cesiumjs.org/Cesium/Build/Apps/Sandcastle/?src=Multiple%20Synced%20Views.html

Let me know if this helps!

3

Above example, replicates the camera to other viewer.
It is almost what I want, but I just want to extract Lat Lon from the movement.

4

You can get the latitude and longitude from the camera’s cartographic position:

https://cesiumjs.org/Cesium/Build/Documentation/Camera.html?classFilter=Camera#positionCartographic