IFC (IFC4X3_ADD2) under development IfcComplexPropertyTemplate Semantic definition

The IfcComplexPropertyTemplate defines the template for all complex properties, either the IfcComplexProperty's, or the IfcPhysicalComplexQuantity's. The individual complex property templates are interpreted according to their Name attribute and and optional UsageName attribute. Entity inheritance Attributes

# Attribute Type Description
IfcRoot (4)
1 GlobalId IfcGloballyUniqueId

Assignment of a globally unique identifier within the entire software world.

2 OwnerHistory OPTIONAL 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,

3 Name OPTIONAL 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.

4 Description OPTIONAL IfcText

Optional description, provided for exchanging informative comments.

IfcPropertyDefinition (2)
HasContext SET [0:1] OF IfcRelDeclares FOR RelatedDefinitions

Reference to the relationship IfcRelDeclares and thus to the IfcProject or IfcProjectLibrary.

HasAssociations SET [0:?] OF IfcRelAssociates FOR RelatedObjects

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.

IfcPropertyTemplate (2)
PartOfComplexTemplate SET [0:?] OF IfcComplexPropertyTemplate FOR HasPropertyTemplates

Reference to a complex property template. It should only be provided, if the PropertyType of the referenced complex property template is set to COMPLEX.

PartOfPsetTemplate SET [0:?] OF IfcPropertySetTemplate FOR HasPropertyTemplates

Reference to the IfcPropertySetTemplate that defines the scope for the IfcPropertyTemplate. A single IfcPropertyTemplate can be defined within the scope of zero, one or many IfcPropertySetTemplate entities.

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IfcComplexPropertyTemplate (3)
5 UsageName OPTIONAL IfcLabel

Usage description of the IfcComplexPropertyTemplate.

6 TemplateType OPTIONAL IfcComplexPropertyTemplateTypeEnum

Property type defining whether the property template defines a property as a IfcComplexProperty or IfcPhysicalComplexQuantity

7 HasPropertyTemplates OPTIONAL SET [1:?] OF IfcPropertyTemplate

Reference to a set of property templates. It should only be provided, if the PropertyType is set to COMPLEX.

Table Formal propositions

Name Description

The IfcComplexPropertyTemplate should not reference itself within the set of HasPropertyTemplates.

SIZEOF(QUERY(temp <* HasPropertyTemplates | SELF :=: temp)) = 0

Every individual IfcPropertyTemplate within the complex property template shall have a unique Name attribute value.

Table Concept usage

Concept Usage Description
IfcRoot (2)
Revision Control General

Ownership, history, and merge state is captured using IfcOwnerHistory.

Software Identity General

IfcRoot assigns the globally unique ID. In addition it may provide for a name and a description about the concept.

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Table Formal representation

ENTITY IfcComplexPropertyTemplate
 SUBTYPE OF (IfcPropertyTemplate);
	UsageName : OPTIONAL IfcLabel;
	TemplateType : OPTIONAL IfcComplexPropertyTemplateTypeEnum;
	HasPropertyTemplates : OPTIONAL SET [1:?] OF IfcPropertyTemplate;
	NoSelfReference : SIZEOF(QUERY(temp <* HasPropertyTemplates | SELF :=: temp)) = 0;
	UniquePropertyNames : IfcUniquePropertyTemplateNames(HasPropertyTemplates);
END_ENTITY; References

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