NF EN ISO 6709
Standard representation of geographic point location by coordinates
This document specifies the representation of latitude and longitude and optionally height or depth compatible with previous editions of ISO 6709.This document also supports the representations of other coordinate types and time that can be associated with those coordinates as defined through one or more coordinate reference systems (CRS).This document describes a text string of coordinates, suitable for electronic data exchange, for one point, including reference system identification to ensure that the coordinates unambiguously represent the position of that point. Files containing multiple points with a single common reference system identification are out of scope. This document also describes a simpler text string structure for coordinate representation of a point location that is more suitable for human readability.
This document specifies the representation of latitude and longitude and optionally height or depth compatible with previous editions of ISO 6709.
This document also supports the representations of other coordinate types and time that can be associated with those coordinates as defined through one or more coordinate reference systems (CRS).
This document describes a text string of coordinates, suitable for electronic data exchange, for one point, including reference system identification to ensure that the coordinates unambiguously represent the position of that point. Files containing multiple points with a single common reference system identification are out of scope. This document also describes a simpler text string structure for coordinate representation of a point location that is more suitable for human readability.
ISO 6709:2008 is applicable to the interchange of coordinates describing geographic point location. It specifies the representation of coordinates, including latitude and longitude, to be used in data interchange. It additionally specifies representation of horizontal point location using coordinate types other than latitude and longitude. It also specifies the representation of height and depth that can be associated with horizontal coordinates. Representation includes units of measure and coordinate order. ISO 6709:2008 is not applicable to the representation of information held within computer memories during processing and in their use in registers of geodetic codes and parameters. ISO 6709:2008 supports point location representation through the eXtensible Markup Language (XML) and, recognizing the need for compatibility with the previous version of this International Standard, ISO 6709:1983, allows for the use of a single alpha-numeric string to describe point locations. For computer data interchange of latitude and longitude, ISO 6709:2008 generally suggests that decimal degrees be used. It allows the use of sexagesimal notations: degrees, minutes and decimal minutes or degrees, minutes, seconds and decimal seconds. ISO 6709:2008 does not require special internal procedures, file-organization techniques, storage medium, languages, etc., to be used in its implementation.
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1 Domaine d'application
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2 Références normatives
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3 Termes et définitions
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4 Termes abrégés et notations de codes de caractères
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5 Conformité
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6 Représentation de localisation de point géographique (GPL)
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7 Représentation de GPL lisible par l'être humain
- Annexe A (normative) Conformité et suite d'essais abstraits
- Annexe B (normative) Représentation de localisation de point géographique rétrocompatible
- Annexe C (informative) Caractère unique des coordonnées de latitude et longitude
- Annexe D (informative) Résolution de la latitude et la longitude
- Annexe E (informative) Modifications par rapport à l' ISO 6709:2008
- Annexe F (normative) Encodage des caractères
- Bibliographie
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