Getting correct world coordinates of the element

[GVladislavG]

Hello, team!

I noticed one thing that I can't understand. There is matrix to locate element in world coordinates in XbimShapeInstance.Transformation. But also there is need to multiplicate this matrix on IfcSite.ObjectPlacement in some IFC-files to get correct coordinates. How can I understand if I need to add IfcSite.ObjectPlacement transformation or not?

Thanks!