Hello,
I really need some help on this one!
I have modeled a project included 2 walls using Revit 2015 and then exported the model to IFC to check the coordinates of true north in the model.
I've set the true north 0 degree on 'project base point', but in IFC file, I think there are a little difference between the true north in Revit and IFC File
What I've expected coordinate value in IFC file is [0,1], but the coordinate value in my IFC file is [6.12303176911189e-17,1].
* The path of what I've checked coordinates is below :
IFCPROJECT -> IFCGEOMETRICREPRESENTATIONCONTEXT -> IFCAXIS2PLACEMENT3D(for checking location) & IFCDIRECTION(for checking true north)

* The picture below is what I've set in Revit

-> this is for avoiding to using internal coordinate system of Revit

is there any people to give a idea?
thank you
best regards.