how to compute a point from ECEF to NED?

    I look around API , I found Cesium.Transforms.northEastDownToFixedFrame(origin, ellipsoid, result) ,buy I want compute a point from ECEF to NED , who can help me? thanks!!!

Hi there,

I believe you should be able to just invert that matrix with Matrix4.inverse to get the transform you’re looking for. (If you want the extra performance, you should also be able to use Matrix4.inverseTransformation because it’s a homogeneous matrix).