Geodetic Shapes for the Representation of Uncertainty in PIDF-LO

Document Type Expired Internet-Draft (individual)
Author Martin Thomson 
Last updated 2006-12-13
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document defines a set of shapes for the representation of uncertainty for PIDF-LO geodetic location information. This includes a GML profile and a schema that defines additional geometries. Further recommendations are made to restrict the use of geographic Coordinate Reference Systems (CRS) and units of measure restrictions that improve interoperability.


Martin Thomson (

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