IfcWindowLiningProperties

Item	Change	Description
IFC2x3 to IFC4 4.0.0.0
IfcWindowLiningProperties	MOVED	Schema changed from IFCSHAREDBLDGELEMENTS to IFCARCHITECTUREDOMAIN.
OwnerHistory	MODIFIED	Instantiation changed to OPTIONAL.
LiningThickness	MODIFIED	Type changed from IfcPositiveLengthMeasure to IfcNonNegativeLengthMeasure.
TransomThickness	MODIFIED	Type changed from IfcPositiveLengthMeasure to IfcNonNegativeLengthMeasure.
MullionThickness	MODIFIED	Type changed from IfcPositiveLengthMeasure to IfcNonNegativeLengthMeasure.
LiningOffset	ADDED
LiningToPanelOffsetX	ADDED
LiningToPanelOffsetY	ADDED
IFC4 Addendum 2 Technical Corrigendum 1 4.0.2.1
IfcWindowLiningProperties
ShapeAspectStyle	MODIFIED	Status changed to Deprecated.
IFC4x1 Final 4.1.0.0
IfcWindowLiningProperties
ShapeAspectStyle	MODIFIED	Status changed from Deprecated.

Semantic definitions at the entity

Entity definition

The window lining is the outer frame which enables the window to be fixed in position. The window lining is used to hold the window panels or other casements. The parameter of the IfcWindowLiningProperties define the geometrically relevant parameter of the lining.

NOTE The IfcWindowLiningProperties shall only be applied to construct the 3D shape of a window, if the attribute IfcWindowType.ParameterTakesPrecedence is set TRUE.

The IfcWindowLiningProperties are included in the set of properties of IfcWindowStyle.HasPropertySets. More information about the window lining can be included in the same set of the IfcWindowType using another IfcPropertySet for dynamic extensions.

The IfcWindowLiningProperties does not hold a geometric representation. However it defines parameters which can be used to create the shape of the window type(which is inserted by the IfcWindow into the spatial context of the project) as shown in Figure 422. The parameters at the IfcWindowLiningProperties define a standard window lining, including (if given) a mullion and a transom (for horizontal and vertical splits). The outer boundary of the lining is determined by the 'Profile' shape representation assigned to the IfcWindow, which inserts the IfcWindowType.

	The lining is applied to all faces of the opening reveal. The parameter are: LiningDepth LiningThickness LiningOffset LiningToPanelOffsetX LiningToPanelOffsetY The inner side is defined as the direction of the window panel opening operation.
	If the OperationType of the window style is DoublePanelVertical (shown) TriplePanelBottom TriplePanelTop TriplePanelLeft TriplePanelRight the following additional parameter apply: MullionThickness FirstMullionOffset measured as offset to the Z axis (in XZ plane) as a normalized ratio measure
	If the OperationType of the window type is: DoublePanelHorizontal TriplePanelBottom TriplePanelTop TriplePanelLeft TriplePanelRight the following additional parameter apply TransomThickness FirstTransomOffset measured as offset to the X axis (in XZ plane) as a normalized ratio measure
	If the OperationType of the window type is: TriplePanelVertical the following additional parameter apply: SecondMullionOffset measured as offset to the Z axis (in XZ plane) as a normalized ratio measure
	If the OperationType of the window type is: TriplePanelHorizontal the following additional parameter apply: SecondTransomOffset measured as offset to the X axis (in XZ plane) as a normalized ratio measure

Figure 422 — Window lining properties

HISTORY New entity in IFC2.0. Has been renamed from IfcWindowLining in IFC2x.

IFC4 CHANGE The following attributes have been added LiningOffset, LiningToPanelOffsetX, LiningToPanelOffsetY. The attribute ShapeAspectStyle is deprecated and shall no longer be used. Supertype changed to new IfcPreDefinedPropertySet.

Attribute definitions

#	Attribute	Type	Cardinality	Description	G
5	LiningDepth	IfcPositiveLengthMeasure	?	Depth of the window lining (dimension measured perpendicular to window elevation plane).	X
6	LiningThickness	IfcNonNegativeLengthMeasure	?	Thickness of the window lining as explained in the figure above. If LiningThickness value is 0. (zero) it denotes a window without a lining (all other lining parameters shall be set to NIL in this case). If the LiningThickness is NIL it denotes that the value is not available. IFC4 CHANGE Data type modified to be IfcNonNegativeLengthMeasure.	X
7	TransomThickness	IfcNonNegativeLengthMeasure	?	Thickness of the transom (horizontal separator of window panels within a window), measured parallel to the window elevation plane. The transom is part of the lining and the transom depth is assumed to be identical to the lining depth. If the TransomThickness is set to zero (and the TransomOffset set to a positive length), then the window is divided vertically without a physical divider. IFC4 CHANGE Data type changed to IfcNonNegativeLengthMeasure.	X
8	MullionThickness	IfcNonNegativeLengthMeasure	?	Thickness of the mullion (vertical separator of window panels within a window), measured parallel to the window elevation plane. The mullion is part of the lining and the mullion depth is assumed to be identical to the lining depth. If the MullionThickness is set to zero (and the MullionOffset set to a positive length), then the window is divided horizontally without a physical divider. IFC4 CHANGE Data type changed to IfcNonNegativeLengthMeasure.	X
9	FirstTransomOffset	IfcNormalisedRatioMeasure	?	Offset of the transom centerline, measured along the z-axis of the window placement co-ordinate system. An offset value = 0.5 indicates that the transom is positioned in the middle of the window.	X
10	SecondTransomOffset	IfcNormalisedRatioMeasure	?	Offset of the transom centerline for the second transom, measured along the x-axis of the window placement co-ordinate system. An offset value = 0.666 indicates that the second transom is positioned at two/third of the window.	X
11	FirstMullionOffset	IfcNormalisedRatioMeasure	?	Offset of the mullion centerline, measured along the x-axis of the window placement co-ordinate system. An offset value = 0.5 indicates that the mullion is positioned in the middle of the window.	X
12	SecondMullionOffset	IfcNormalisedRatioMeasure	?	Offset of the mullion centerline for the second mullion, measured along the x-axis of the window placement co-ordinate system. An offset value = 0.666 indicates that the second mullion is positioned at two/third of the window.	X
13	ShapeAspectStyle	IfcShapeAspect	?	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 lining. IFC4 CHANGE The attribute is deprecated and shall no longer be used, i.e. the value shall be NIL ($).	X
14	LiningOffset	IfcLengthMeasure	?	Offset of the window lining. The offset is given as distance along the y axis of the local placement (perpendicular to the window plane). IFC4 CHANGE New attribute added at the end of the entity definition.	X
15	LiningToPanelOffsetX	IfcLengthMeasure	?	Offset between the lining and the window panel measured along the x-axis of the local placement. Should be smaller or equal to the LiningThickness. IFC4 CHANGE New attribute added at the end of the entity definition.	X
16	LiningToPanelOffsetY	IfcLengthMeasure	?	Offset between the lining and the window panel measured along the y-axis of the local placement. Should be smaller or equal to the IfcWindowPanelProperties.PanelThickness. IFC4 CHANGE New attribute added at the end of the entity definition.	X

Formal Propositions

Rule	Description
WR31	Either both parameter, LiningDepth and LiningThickness are given, or only the LiningThickness, then the LiningDepth is variable. It is not valid to only assert the LiningDepth. NOTE A LiningDepth with NIL ($) value indicates a window style with a lining equal to the wall thickness. IFC4 CHANGE Rule corrected.
WR32	Either both parameter, FirstTransomOffset and SecondTransomOffset are given, or only the FirstTransomOffset, or none of both. It is not valid to only assert the SecondTransomOffset.
WR33	Either both parameter, FirstMullionOffset and SecondMullionOffset are given, or only the FirstMullionOffset, or none of both. It is not valid to only assert the SecondMullionOffset.
WR34	The IfcWindowPanelProperties shall only be used in the context of an IfcWindowType.

Inherited definitions from supertypes

Entity inheritance

Attribute inheritance

#	Attribute	Type	Cardinality	Description	G
IfcRoot
1	GlobalId	IfcGloballyUniqueId		Assignment of a globally unique identifier within the entire software world.	X
2	OwnerHistory	IfcOwnerHistory	?	Assignment of the information about the current ownership of that object, including owning actor, application, local identification and information captured about the recent changes of the object, NOTE only the last modification in stored - either as addition, deletion or modification. IFC4 CHANGE The attribute has been changed to be OPTIONAL.	X
3	Name	IfcLabel	?	Optional name for use by the participating software systems or users. For some subtypes of IfcRoot the insertion of the Name attribute may be required. This would be enforced by a where rule.	X
4	Description	IfcText	?	Optional description, provided for exchanging informative comments.	X
IfcPropertyDefinition
	HasContext	IfcRelDeclares @RelatedDefinitions	S[0:1]		X
	HasAssociations	IfcRelAssociates @RelatedObjects	S[0:?]	Reference to the relationship IfcRelAssociates and thus to those externally defined concepts, like classifications, documents, or library information, which are associated to the property definition.	X
IfcPropertySetDefinition
	DefinesType	IfcTypeObject @HasPropertySets	S[0:?]	The type object to which the property set is assigned. The property set acts as a shared property set to all occurrences of the type object. NOTE The relationship between the IfcPropertySetDefinition and the IfcTypeObject is a direct relationship, not utilizing IfcRelDefinesByProperties, for maintaining compatibility with earlier releases of this standard. IFC4 CHANGE The cardinality has been changed from 0:1 to 0:? with upward compatibility for file based exchange.	X
	IsDefinedBy	IfcRelDefinesByTemplate @RelatedPropertySets	S[0:?]	Relation to the property set template, via the objectified relationship IfcRelDefinesByTemplate, that, if given, provides the definition template for the property set or quantity set and its properties. IFC4 CHANGE New inverse relationship, change made with upward compatibility for file based exchange.	X
	DefinesOccurrence	IfcRelDefinesByProperties @RelatingPropertyDefinition	S[0:?]	Reference to the relation to one or many object occurrences that are characterized by the property set definition. A single property set can be assigned to multiple object occurrences using the objectified relationship IfcRefDefinesByProperties. IFC4 CHANGE Inverse attribute renamed from PropertyDefinitionOf with upward compatibility for file-based exchange.	X
IfcPreDefinedPropertySet
IfcWindowLiningProperties
5	LiningDepth	IfcPositiveLengthMeasure	?	Depth of the window lining (dimension measured perpendicular to window elevation plane).	X
6	LiningThickness	IfcNonNegativeLengthMeasure	?	Thickness of the window lining as explained in the figure above. If LiningThickness value is 0. (zero) it denotes a window without a lining (all other lining parameters shall be set to NIL in this case). If the LiningThickness is NIL it denotes that the value is not available. IFC4 CHANGE Data type modified to be IfcNonNegativeLengthMeasure.	X
7	TransomThickness	IfcNonNegativeLengthMeasure	?	Thickness of the transom (horizontal separator of window panels within a window), measured parallel to the window elevation plane. The transom is part of the lining and the transom depth is assumed to be identical to the lining depth. If the TransomThickness is set to zero (and the TransomOffset set to a positive length), then the window is divided vertically without a physical divider. IFC4 CHANGE Data type changed to IfcNonNegativeLengthMeasure.	X
8	MullionThickness	IfcNonNegativeLengthMeasure	?	Thickness of the mullion (vertical separator of window panels within a window), measured parallel to the window elevation plane. The mullion is part of the lining and the mullion depth is assumed to be identical to the lining depth. If the MullionThickness is set to zero (and the MullionOffset set to a positive length), then the window is divided horizontally without a physical divider. IFC4 CHANGE Data type changed to IfcNonNegativeLengthMeasure.	X
9	FirstTransomOffset	IfcNormalisedRatioMeasure	?	Offset of the transom centerline, measured along the z-axis of the window placement co-ordinate system. An offset value = 0.5 indicates that the transom is positioned in the middle of the window.	X
10	SecondTransomOffset	IfcNormalisedRatioMeasure	?	Offset of the transom centerline for the second transom, measured along the x-axis of the window placement co-ordinate system. An offset value = 0.666 indicates that the second transom is positioned at two/third of the window.	X
11	FirstMullionOffset	IfcNormalisedRatioMeasure	?	Offset of the mullion centerline, measured along the x-axis of the window placement co-ordinate system. An offset value = 0.5 indicates that the mullion is positioned in the middle of the window.	X
12	SecondMullionOffset	IfcNormalisedRatioMeasure	?	Offset of the mullion centerline for the second mullion, measured along the x-axis of the window placement co-ordinate system. An offset value = 0.666 indicates that the second mullion is positioned at two/third of the window.	X
13	ShapeAspectStyle	IfcShapeAspect	?	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 lining. IFC4 CHANGE The attribute is deprecated and shall no longer be used, i.e. the value shall be NIL ($).	X
14	LiningOffset	IfcLengthMeasure	?	Offset of the window lining. The offset is given as distance along the y axis of the local placement (perpendicular to the window plane). IFC4 CHANGE New attribute added at the end of the entity definition.	X
15	LiningToPanelOffsetX	IfcLengthMeasure	?	Offset between the lining and the window panel measured along the x-axis of the local placement. Should be smaller or equal to the LiningThickness. IFC4 CHANGE New attribute added at the end of the entity definition.	X
16	LiningToPanelOffsetY	IfcLengthMeasure	?	Offset between the lining and the window panel measured along the y-axis of the local placement. Should be smaller or equal to the IfcWindowPanelProperties.PanelThickness. IFC4 CHANGE New attribute added at the end of the entity definition.	X

#	Concept	Template	Model View
IfcRoot
	Identity	Software Identity	General Usage
	Revision Control	Revision Control	General Usage

Formal representations

XML Specification

 <xs:element name="IfcWindowLiningProperties" type="ifc:IfcWindowLiningProperties" substitutionGroup="ifc:IfcPreDefinedPropertySet" nillable="true"/>

 <xs:complexType name="IfcWindowLiningProperties">

  <xs:complexContent>

   <xs:extension base="ifc:IfcPreDefinedPropertySet">

    <xs:sequence>

     <xs:element name="ShapeAspectStyle" type="ifc:IfcShapeAspect" nillable="true" minOccurs="0"/>

    </xs:sequence>

    <xs:attribute name="LiningDepth" type="ifc:IfcPositiveLengthMeasure" use="optional"/>

    <xs:attribute name="LiningThickness" type="ifc:IfcNonNegativeLengthMeasure" use="optional"/>

    <xs:attribute name="TransomThickness" type="ifc:IfcNonNegativeLengthMeasure" use="optional"/>

    <xs:attribute name="MullionThickness" type="ifc:IfcNonNegativeLengthMeasure" use="optional"/>

    <xs:attribute name="FirstTransomOffset" type="ifc:IfcNormalisedRatioMeasure" use="optional"/>

    <xs:attribute name="SecondTransomOffset" type="ifc:IfcNormalisedRatioMeasure" use="optional"/>

    <xs:attribute name="FirstMullionOffset" type="ifc:IfcNormalisedRatioMeasure" use="optional"/>

    <xs:attribute name="SecondMullionOffset" type="ifc:IfcNormalisedRatioMeasure" use="optional"/>

    <xs:attribute name="LiningOffset" type="ifc:IfcLengthMeasure" use="optional"/>

    <xs:attribute name="LiningToPanelOffsetX" type="ifc:IfcLengthMeasure" use="optional"/>

    <xs:attribute name="LiningToPanelOffsetY" type="ifc:IfcLengthMeasure" use="optional"/>

   </xs:extension>

  </xs:complexContent>

 </xs:complexType>

EXPRESS Specification


ENTITY IfcWindowLiningProperties

 SUBTYPE OF (IfcPreDefinedPropertySet);

  LiningDepth : OPTIONAL IfcPositiveLengthMeasure;

  LiningThickness : OPTIONAL IfcNonNegativeLengthMeasure;

  TransomThickness : OPTIONAL IfcNonNegativeLengthMeasure;

  MullionThickness : OPTIONAL IfcNonNegativeLengthMeasure;

  FirstTransomOffset : OPTIONAL IfcNormalisedRatioMeasure;

  SecondTransomOffset : OPTIONAL IfcNormalisedRatioMeasure;

  FirstMullionOffset : OPTIONAL IfcNormalisedRatioMeasure;

  SecondMullionOffset : OPTIONAL IfcNormalisedRatioMeasure;

  ShapeAspectStyle : OPTIONAL IfcShapeAspect;

  LiningOffset : OPTIONAL IfcLengthMeasure;

  LiningToPanelOffsetX : OPTIONAL IfcLengthMeasure;

  LiningToPanelOffsetY : OPTIONAL IfcLengthMeasure;

 WHERE

  WR31 : NOT(EXISTS(LiningDepth) AND NOT(EXISTS(LiningThickness)));
  WR32 : NOT(NOT(EXISTS(FirstTransomOffset)) AND EXISTS(SecondTransomOffset));
  WR33 : NOT(NOT(EXISTS(FirstMullionOffset)) AND EXISTS(SecondMullionOffset));
  WR34 : (EXISTS(SELF\IfcPropertySetDefinition.DefinesType[1])) 

AND 

 ('IFCSHAREDBLDGELEMENTS.IfcWindowType' IN TYPEOF(SELF\IfcPropertySetDefinition.DefinesType[1]));
END_ENTITY;

 EXPRESS-G diagram

	Festdefinierte Merkmale des Fensterrahmens / der Fensterzarge
	Window Lining Properties
	Propriétés de cadre de fenêtre

IfcWindowLiningProperties

Semantic definitions at the entity

Inherited definitions from supertypes

Definitions applying to General Usage

Formal representations