Defined in File Ifc2x3.h
Definition from IAI: This enumeration defines the different types of space boundaries in terms of its physical manifestation. A space boundary can either be physically dividing or can be a virtual divider.
The space boundary is provided physically, i.e. by an physical element.
The space boundary is provided virtually, i.e. by a logical divider that has no physical manifestation.
No information available.
HISTORY: New enumeration in IFC Release 2.0