NF EN ISO 6709
Standard representation of geographic point location by coordinates
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.
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.
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.
- Avant-proposiv
- Introductionv
-
1 Domaine d'application1
-
2 Conformité1
-
3 Références normatives1
-
4 Termes et définitions2
-
5 Abréviations3
-
6 Exigences pour la représentation de la localisation de points géographiques4
-
6.1 Modèle conceptuel pour la localisation de points géographiques4
-
6.2 Éléments requis pour la localisation de points géographiques5
-
6.3 Identification du système de référence de coordonnées5
-
6.4 Représentation de la position horizontale6
-
6.5 Représentation de la position verticale6
-
6.6 Résolution de la coordonnée7
-
6.7 Utilisation de la localisation de points géographiques7
-
7 Représentation de la localisation de points géographiques7
-
7.1 Modèle UML7
-
7.2 Représentation XML7
-
7.3 Représentation d'une chaîne de texte7
- Annexe A (normative) Conformité et suite d'essais sommaires8
- Annexe B (informative) Les coordonnées de latitude et de longitude ne sont pas uniques10
- Annexe C (normative) Description UML pour la représentation des localisations de point géographique12
- Annexe D (informative) Représentation de la latitude et la longitude au niveau de l'interface humaine17
- Annexe E (informative) Résolution de la latitude et la longitude19
- Annexe F (informative) Utilisation des localisations des points géographiques20
- Annexe G (informative) Exemples de représentation XML23
- Annexe H (informative) Représentation sous forme de chaîne de texte de localisation de point25
- Bibliographie28
The Requirements department helps you quickly locate within the normative text:
- mandatory clauses to satisfy,
- non-essential but useful clauses to know, such as permissions and recommendations.
The identification of these types of clauses is based on the document “ISO / IEC Directives, Part 2 - Principles and rules of structure and drafting of ISO documents ”as well as on a constantly enriched list of verbal forms.
With Requirements, quickly access the main part of the normative text!

COBAZ is the simple and effective solution to meet the normative needs related to your activity, in France and abroad.
Available by subscription, CObaz is THE modular solution to compose according to your needs today and tomorrow. Quickly discover CObaz!
Request your free, no-obligation live demo
I discover COBAZ