Method parent_id

src/ifcgeom/IfcGeomElement.h:90–90

		int id() const { return _id; }
		int parent_id() const { return _parent_id; }
		const std::string& name() const { return _name; }
		const std::string& type() const { return _type; }
		const std::string& guid() const { return _guid; }