RoofOrientation
Orientation of the roof shape relative to the footprint shape.
The members of this enumeration, "across" and "along", are borrowed from the OpenStreetMap
roof:orientation=* tag and have the same meanings as they do in OSM.
Values
across- The roof ridge runs perpendicular to the longer of the two building edges, parallel to the shorteralong- The roof ridge runs parallel to the longer of the two building edges