# Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services, Division 5.2.4: Simple Linear Reference (SimpleLinearReference)

Extent: E+W+S+N.I.

A network reference that is restricted to part of a linear network element. The part is the part of the network element between fromPosition and toPosition.
This type is a sub-type of LinkReference.
Attributes of the data type SimpleLinearReference
Attribute
Definition
Type
Voidability
fromPosition
The start position of the linear element, expressed as the distance from the start of the linear network element along its curve geometry.
Length
offset
An offset from the centreline geometry of the generalised link, where applicable; a positive offset is to the right in the direction of the link, a negative offset is to the left.
Length
voidable
toPosition
The end position of the linear element, expressed as the distance from the start of the linear network element along its curve geometry.
Length

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Source: https://www.legislation.gov.uk/eur/2010/1089/annex/I/division/5/division/5.2/division/5.2.4 (the official version)
Page: https://openlegislation.uk/eu-regulation-2010-1089/annex-I/division-5/division-5.2/division-5.2.4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.