# 7.1.2.1 IfcDoorPanelOperationEnum

## 7.1.2.1.1 Semantic definition

This enumeration defines the basic ways how individual door panels operate as shown in Figure 1.

The opening direction of the door panels is given by the local placement of the IfcDoor. The positive y-axis determines the direction as shown in Figure 7.1.2.1.A.

## 7.1.2.1.3 Formal representation

TYPE IfcDoorPanelOperationEnum = ENUMERATION OF
(DOUBLE_ACTING
,FIXEDPANEL
,FOLDING
,REVOLVING
,ROLLINGUP
,SLIDING
,SWINGING
,USERDEFINED
,NOTDEFINED);
END_TYPE;