Definition from buildingSMART: This enumeration defines the basic ways to describe how window panels operate.
HISTORY New Enumeration in IFC Release 2.0
|SideHungRightHand||panel that opens to the right when viewed from the outside|
|SideHungLeftHand||panel that opens to the left when viewed from the outside|
|TiltAndTurnRightHand||panel that opens to the right and is bottom hung|
|TiltAndTurnLeftHand||panel that opens to the left and is bottom hung|
|TopHung||panel is top hung|
|BottomHung||panel is bottom hung|
|PivotHorizontal||panel is swinging horizontally (hinges are in the middle)|
|PivotVertical||panel is swinging vertically (hinges are in the middle)|
|SlidingHorizontal||panel is sliding horizontally|
|SlidingVertical||panel is sliding vertically|
|RemovableCasement||panel is removable|
|FixedCasement||panel is fixed|
|OtherOperation||user defined operation type|
The opening direction of the window panels is given by the local placement of the IfcWindow. The positive y-axis determines the direction as shown in the figure.