8.15.3.23 IfcSectionProperties

8.15.3.23.1 Semantic definition

IfcSectionProperties defines the cross section properties for a single longitudinal piece of a cross section. It is a special-purpose helper class for IfcSectionReinforcementProperties.

The section piece may be either uniform or tapered. In the latter case an end profile should also be provided. The start and end profiles are assumed to be of the same profile type. Generally only rectangular or circular cross section profiles are assumed to be used.

8.15.3.23.2 Entity inheritance

- IfcPropertyAbstraction

8.15.3.23.3 Attributes

#	Attribute	Type	Description
IfcPropertyAbstraction (1)
	HasExternalReferences	SET [0:?] OF IfcExternalReferenceRelationship FOR RelatedResourceObjects	Reference to an external reference, e.g. library, classification, or document information, that is associated to the property definition. IFC4-CHANGE New inverse attribute.
Click to show 1 hidden inherited attributes Click to hide 1 inherited attributes
IfcSectionProperties (3)
1	SectionType	IfcSectionTypeEnum	An indicator whether a specific piece of a cross section is uniform or tapered in longitudinal direction.
2	StartProfile	IfcProfileDef	The cross section profile at the start point of the longitudinal section.
3	EndProfile	OPTIONAL IfcProfileDef	The cross section profile at the end point of the longitudinal section.

Table A

8.15.3.23.4 Formal representation

ENTITY IfcSectionProperties
SUBTYPE OF (IfcPreDefinedProperties);
SectionType : IfcSectionTypeEnum;
StartProfile : IfcProfileDef;
EndProfile : OPTIONAL IfcProfileDef;
END_ENTITY;