North Arrow Support ?

[SCK]

1. A concise explanation of the problem you're experiencing.

When I tilt and rotate the 3D map, the direction of the map is unknown

2. A minimal code example. If you've found a bug, this helps us reproduce and repair it.

3. Context. Why do you need to do this? We might know a better way to accomplish your goal.

When we rotate 3D map with terrain, we don't know which direction is pointing up. This is a basic GIS function

4. The Cesium version you're using, your operating system and browser.

Cesium 1.42

[Left Gully]

Have you looked at the cesium_navigation add-in?
I think it may provide what you are looking for.
https://github.com/alberto-acevedo/cesium-navigation

[Gabby Getz]

You can get the direction of north by subtracting the camera position, Camera.positionWC, from the position of the north pole (or the location of true north). 

Thanks,

Gabby

[SCK]

Can you please provide the sample code

[SCK]

I tried it, but faced issues where  we cant include our application custom code

[Gabby Getz]

Can you be more specific about no being able to include your application custom code?