I’m programming in C++ with OpenXR SDK.
I have to “translate” an OpenGL Sample in VR with OpenXR.
It’s already done !
However, the coordinate system is not the same and I don’t know how to fix that…

If you have data that has a coordinate system called GCS_Assumed_Geographic_1, this is not the data’s correct coordinate system. The GCS_Assumed_Geographic_1 coordinate system definition was created to permit ArcMap to guess at the coordinate system for data that has coordinates in decimal degrees. You should determine the correct geographic coordinate system for the data.