IfcSimpleValue

Semantic definitions at the type

Type definition

IfcSimpleValue is a select type for selecting between simple value types.

SELECT

IfcInteger: Defined type of simple type INTEGER.
IfcReal: Defined type of simple type REAL.
IfcBoolean: Defined type of simple type BOOLEAN.
IfcLogical: Defined type of simple type LOGICAL.
IfcIdentifier: Defined type of simple type STRING for identification purposes.
IfcLabel: Defined type of simple type STRING for naming purposes.
IfcText: Defined type of simple type STRING for descriptive purposes.
IfcDateTime: Defined type of simple type STRING to represent a date and time.
IfcDate: Defined type of simple type STRING to represent a date.
IfcTime: Defined type of simple type STRING to represent a time.
IfcDuration: Defined type of simple type STRING to represent a duration.
IfcTimeStamp: Defined type of simple type INTEGER to represent a point in time by seconds elapsed since 1970.

HISTORY New type in IFC2x.

IFC4 CHANGE Items IfcDateTime, IfcDate, IfcTime, IfcDuration, IfcTimeStamp added.

Enumeration definition

Constant	Description
IfcInteger
IfcReal
IfcBoolean
IfcIdentifier
IfcText
IfcLabel
IfcLogical
IfcDateTime
IfcDate
IfcTime
IfcDuration
IfcTimeStamp
IfcPositiveInteger

Formal representations

XSD Specification

 <xs:group name="IfcSimpleValue">

  <xs:choice>

   <xs:element ref="ifc:IfcBoolean-wrapper"/>

   <xs:element ref="ifc:IfcDate-wrapper"/>

   <xs:element ref="ifc:IfcDateTime-wrapper"/>

   <xs:element ref="ifc:IfcDuration-wrapper"/>

   <xs:element ref="ifc:IfcIdentifier-wrapper"/>

   <xs:element ref="ifc:IfcInteger-wrapper"/>

   <xs:element ref="ifc:IfcLabel-wrapper"/>

   <xs:element ref="ifc:IfcLogical-wrapper"/>

   <xs:element ref="ifc:IfcPositiveInteger-wrapper"/>

   <xs:element ref="ifc:IfcReal-wrapper"/>

   <xs:element ref="ifc:IfcText-wrapper"/>

   <xs:element ref="ifc:IfcTime-wrapper"/>

   <xs:element ref="ifc:IfcTimeStamp-wrapper"/>

  </xs:choice>

 </xs:group>

EXPRESS Specification


TYPE IfcSimpleValue = SELECT (

 IfcInteger, 
 IfcReal, 
 IfcBoolean, 
 IfcIdentifier, 
 IfcText, 
 IfcLabel, 
 IfcLogical, 
 IfcDateTime, 
 IfcDate, 
 IfcTime, 
 IfcDuration, 
 IfcTimeStamp, 
 IfcPositiveInteger);
END_TYPE;


 EXPRESS-G diagram

Item	SPF	XML	Change	Description
IFC2x3 to IFC4
IfcSimpleValue
IfcDateTime			ADDED
IfcDate			ADDED
IfcTime			ADDED
IfcDuration			ADDED
IfcTimeStamp			ADDED
IFC4 Addendum 1
IfcSimpleValue
IfcPositiveInteger			ADDED

	Einfacher Wert
	Simple Value
	Valeur simple