Propriétés des panneaux de fenêtre
Festdefinierte Merkmale der Fensterfüllung / des Fensterflügels

A window panel is a casement, that is, a component, fixed or opening, consisting essentially of a frame and the infilling. The infilling of a window panel is normally glazing. The way of operation is defined in the operation type.

The IfcWindowPanelProperties are used to parametrically describe the shape and operation of window panels. The parametric definition can be added solely or additionally to the explicit shape representation of the window.

The IfcWindowStyle can define windows consisting of more then one panel. In this case, one instance of IfcWindowPanelProperties has to be included for each window panel. The PanelPosition attribute, in conjunction with the IfcWindowStyle.OperationType attribute, determines to which panel the IfcWindowPanelPropertiesapply.

The IfcWindowPanelProperties are included in the list of properties (HasPropertySets) of the IfcWindowStyle. More information about the window panel can be included in the same list of the IfcWindowStyle using the IfcPropertySet for dynamic extensions.

HISTORY  New entity in IFC2.0, it had been renamed from IfcWindowPanel in IFC2x.
IFC4 CHANGE  Supertype changed to new IfcPreDefinedPropertySet.

Geometry use definitions

The IfcWindowPanelProperties does not hold an own geometric representation. However it defines parameter, which can be used to create the shape of the IfcWindowType (which is inserted by the IfcWindow into the spatial context of the project).

The parameters at the IfcWindowPanelProperties define a standard window panel. The outer boundary of the panel is determined by the occurrence parameter assigned to the IfcWindow, which inserts the IfcWindowStyle. It has to take the lining parameter into account as well. The position of the window panel within the overall window is determined by the PanelPosition attribute.

As shown in Figure 261, the panel is applied to the position within the lining as defined by the panel position attribute. The following parameter apply to that panel: FrameDepth, FrameThickness.

panel 1

Figure 261 — Window panel properties

XSD Specification:

 <xs:element name="IfcWindowPanelProperties" type="ifc:IfcWindowPanelProperties" substitutionGroup="ifc:IfcPreDefinedPropertySet" nillable="true"/>
 <xs:complexType name="IfcWindowPanelProperties">
   <xs:extension base="ifc:IfcPreDefinedPropertySet">
     <xs:element name="ShapeAspectStyle" type="ifc:IfcShapeAspect" nillable="true" minOccurs="0"/>
    <xs:attribute name="OperationType" type="ifc:IfcWindowPanelOperationEnum" use="optional"/>
    <xs:attribute name="PanelPosition" type="ifc:IfcWindowPanelPositionEnum" use="optional"/>
    <xs:attribute name="FrameDepth" type="ifc:IfcPositiveLengthMeasure" use="optional"/>
    <xs:attribute name="FrameThickness" type="ifc:IfcPositiveLengthMeasure" use="optional"/>

EXPRESS Specification:

ENTITY IfcWindowPanelProperties
SUBTYPE OF IfcPreDefinedPropertySet;
OperationType : IfcWindowPanelOperationEnum;
PanelPosition : IfcWindowPanelPositionEnum;
FrameDepth : OPTIONAL IfcPositiveLengthMeasure;
FrameThickness : OPTIONAL IfcPositiveLengthMeasure;
ShapeAspectStyle : OPTIONAL IfcShapeAspect;
ApplicableToType : (EXISTS(SELF\IfcPropertySetDefinition.DefinesType[1])) AND ( ('IFCSHAREDBLDGELEMENTS.IFCWINDOWTYPE' IN TYPEOF(SELF\IfcPropertySetDefinition.DefinesType[1])) OR ('IFCARCHITECTUREDOMAIN.IFCWINDOWSTYLE' IN TYPEOF(SELF\IfcPropertySetDefinition.DefinesType[1])) );

Link to EXPRESS-G diagram EXPRESS-G diagram

Attribute Definitions:

OperationType : Types of window panel operations. Also used to assign standard symbolic presentations according to national building standards.
PanelPosition : Position of this panel within the overall window style.
FrameDepth : Depth of panel frame, measured from front face to back face horizontally (i.e. perpendicular to the window (elevation) plane.
FrameThickness : Width of panel frame, measured from inside of panel (at glazing) to outside of panel (at lining), i.e. parallel to the window (elevation) plane.
ShapeAspectStyle : Optional link to a shape aspect definition, which points to the part of the geometric representation of the window style, which is used to represent the panel.
DEPRECATION  The attribute is deprecated and shall no longer be used, i.e. the value shall be NIL ($).

Formal Propositions:

ApplicableToType : The IfcWindowPanelProperties shall only be used in the context of an IfcDoorType.
NOTE  The deprecated entity IfcWindowStyle is applicable as well.

Inheritance Graph:

ENTITY IfcWindowPanelProperties
GlobalId : IfcGloballyUniqueId;
OwnerHistory : OPTIONAL IfcOwnerHistory;
Name : OPTIONAL IfcLabel;
Description : OPTIONAL IfcText;
ENTITY IfcPropertyDefinition
HasContext : SET [0:1] OF IfcRelDeclares FOR RelatedDefinitions;
HasAssociations : SET OF IfcRelAssociates FOR RelatedObjects;
ENTITY IfcPropertySetDefinition
DefinesType : SET OF IfcTypeObject FOR HasPropertySets;
IsDefinedBy : SET OF IfcRelDefinesByTemplate FOR RelatedPropertySets;
DefinesOccurrence : SET [0:1] OF IfcRelDefinesByProperties FOR RelatingPropertyDefinition;
ENTITY IfcPreDefinedPropertySet
ENTITY IfcWindowPanelProperties
OperationType : IfcWindowPanelOperationEnum;
PanelPosition : IfcWindowPanelPositionEnum;
FrameDepth : OPTIONAL IfcPositiveLengthMeasure;
FrameThickness : OPTIONAL IfcPositiveLengthMeasure;
ShapeAspectStyle : OPTIONAL IfcShapeAspect;

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