Hello, do you know which version of WGS 84 is used in Cesium? (WGS 84 (G730), WGS 84 (G873), WGS 84 (G1150), or WGS 84 (G1674))
I think it is one of those two:
- Cartographic coordinates: WGS 84 - WGS84 - World Geodetic System 1984, used in GPS - EPSG:4326
- Cartesian coordinates: WGS 84 - EPSG:4978
This question was also answered on Github different projections · Issue #3877 · CesiumGS/cesium · GitHub