I am trying to make a rectangular selection in a city model file provided by the Senate of Berlin.
I tried creating a box around the selection for the elements to keep and using MeshBooleanDifference to delete everything that is in the corpus of the box.
I tried using MeshToNurbs and then regular BooleanDifference & Split, both failed.
What commands should be used in this case?
The attached file is the provided city model in meshes with a box & cutout. The elements inside the cutout should be kept.