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6.6.4.5 Pset_LinearReferencingMethod

6.6.4.5.1 Semantic definition

Describes the manner in which measurements are made along (and optionally offset from) a linear element.

Definition according to ISO 19148:2021

6.6.4.5.2 Applicable entities

6.6.4.5.3 Properties

Name Property Type Data Type Description
LRMName IfcPropertySingleValue IfcLabel

Gives the name of this Linear Referencing Method, such as โ€œkilometre-pointโ€.

Definition according to ISO 19148:2021. Names of commonly used Linear Referencing Methods are included in ISO 19148, Annex C, along with recognized name aliases.
LRMType IfcPropertyEnumeratedValue PEnum_LRMType

Gives the type of this Linear Referencing Method.

Definition according to ISO 19148:2021, LRMType. Since the definition in ISO 19148:2021, LRMType is stereotyped as a CodeList it is open for user defined extensions. In this Pset this is handled by adding the enumeration constant LRM_USERDEFINED and the additional property UserDefinedLRMType
UserDefinedLRMType IfcPropertySingleValue IfcLabel

Gives the user defined type of this Linear Referencing Method when property LRMType is LRM_USERDEFINED.

LRMUnit IfcPropertySingleValue IfcLabel

Specifies the units of measure used by this Linear Referencing Method for measures along the linear element being measured.

Definition according to ISO 19148:2021.
LRMConstraint IfcPropertySingleValue IfcLabel

Allows for the specification of constraints imposed by this Linear Referencing Method. For example, a Reference Post Linear Referencing Method may specify that referents be of type โ€œreference markerโ€.

definition according to ISO 19148:2021
Table 6.6.4.5.A

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6.6.4.5.4 Changelog

6.6.4.5.4.1 IFC4.3_DEV_33fdbb94

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