Definition from IAI: This enumeration defines the basic configuration of the window type in terms of the number of window panels and the subdivision of the total window. The window configurations are given for windows with one, two or three panels (including fixed panels).
Windows which are subdivided into more than three panels have to be defined by the geometry only. The type of such windows is USERDEFINED.
HISTORY New Enumeration in IFC Release 2.0
Documentation improved in IFC Release 3.0 Platform
Illustration
| Enumerator | Description | Figure |
| SinglePanel | Window with one
panel. |
 |
| DoublePanelVertical | Window with two panels. The
configuration of the panels is vertically. |
 |
| DoublePanelHorizontal | Window with two panels. The
configuration of the panels is horizontally. |
 |
| TriplePanelVertical | Window with three panels. The
configuration of the panels is vertically. |
 |
| TriplePanelHorizontal | Window with three panels. The configuration of the panels is horizontally. |  |
| TriplePanelBottom | Window with three panels. The
configuration of two panels is vertically and the third one is horizontally at
the bottom. |
 |
| TriplePanelTop | Window with three panels. The
configuration of two panels is vertically and the third one is horizontally at
the top. |
 |
| TriplePanelLeft | Window with three panels. The
configuration of two panels is horizontally and the third one is vertically at
the left hand side. |
 |
| TriplePanelRight | Window with three panels. The
configuration of two panels is horizontally and the third one is vertically at
the right hand side. |
 |
| UserDefined | user defined operation type | |
| NotDefined |
NOTE
- The way how each panel operates is defined at the IfcWindowPanelProperties.OperationType.
- The reference from the window panel to the location of that panel in the window style configuration is handled by the IfcWindowPanelProperties.PanelPosition.
- The figures are shown as elevations in the XZ plane of the local placement of the window, looking into the direction of the positive Y axis.
- These figures are only shown as illustrations