IFC 4.3.2.20250327 (IFC4X3_ADD2) under development

6.1.2.20 IfcStairFlightTypeEnum

6.1.2.20.1 Semantic definition

This enumeration defines the different types of stair flights that can further specify an IfcStairFlight or IfcStairFlightType.

6.1.2.20.2 Type values

Type Description
CURVED

A stair flight with a curved walking line.

FREEFORM

A stair flight with a free form walking line (and outer boundaries).

SPIRAL

A stair flight with a circular or elliptic walking line.

STRAIGHT

A stair flight with a straight walking line.

WINDER

A stair flight with a walking line including straight and curved sections.

USERDEFINED

User-defined stair flight.

NOTDEFINED

Undefined stair flight.

Table 6.1.2.20.A

6.1.2.20.3 Formal representation

TYPE IfcStairFlightTypeEnum = ENUMERATION OF
(CURVED
,FREEFORM
,SPIRAL
,STRAIGHT
,WINDER
,USERDEFINED
,NOTDEFINED);
END_TYPE;

6.1.2.20.4 References