How to get the East and North unreal vectors of a point?
Help,thanks!
You should be able to use the ComputeEastSouthUpToUnreal function on the CesiumGeoreference, giving it the Unreal world coordinates of the point. In the East-South-Up system, the vector (1,0,0) points east, (0, 1, 0) points south, and (0, 0, 1) points up. So you just need to construct your east vector (1,0,0) and your north vector (0, -1, 0) and multiply the matrix returned by ComputeEastSouthUpToUnreal by each of them. That will give you the direction of each in the Unreal coordinate system.