Hello,
I have exactly the same issue here.
Using only local system but with laserscan. The thing I would like to achieve is : be able to align in and out of building based on the geometry from laser scans ; and also separelty the inside ; and the outside on different component while keeping exact same positionning on the grid .
Everything I have tried did not succeed (i kind of tried a lot) and there is always some shift of the differents components on the grid.
Any idea ?