gpx.studio/website/src/lib/docs/fr/gpx.mdx
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New Crowdin updates (#30)
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---
title: Format de fichier GPX
---
<script>
import { Waypoints, MapPin } from 'lucide-svelte';
</script>
# { title }
Le format de fichier <a href="https://www.topografix.com/gpx.asp" target="_blank">GPX</a> est un standard ouvert pour l'échange de données GPS entre applications et appareils GPS.
Il consiste principalement en une série de points GPS encodant une ou plusieurs traces GPS, et, éventuellement, certains points d'intérêt.
Les fichiers GPX peuvent aussi contenir des métadonnées, dont les champs **nom** et **description** sont les plus utiles pour les utilisateurs.
### <Waypoints size="16" class="inline-block" style="margin-bottom: 2px" /> Pistes, segments et points GPS
Comme mentionné ci-dessus, un fichier GPX peut contenir plusieurs traces GPS.
Celles-ci sont organisées en une structure hiérarchique, dont les pistes constituent le niveau supérieur.
- Une **piste** est faite d'une séquence de segments déconnectés.
De plus, une piste peut contenir des métadonnées comme un **nom**, une **description**, et des **propriétés d'apparence**.
- Un **segment** est une séquence de points GPS qui forment un chemin continu.
- Un **point GPS** est une localisation avec une latitude, une longitude, et éventuellement un horodatage et une altitude.
Certains appareils stockent également des informations supplémentaires telles que la fréquence cardiaque, la cadence, la température et la puissance.
Dans la plupart des cas, les fichiers GPX contiennent une seule piste avec un seul segment.
Cependant, la hiérarchie décrite ci-dessus permet des cas d'utilisation plus avancés, comme la planification de voyages de plusieurs jours avec plusieurs variantes pour chaque jour.
### <MapPin size="16" class="inline-block" style="margin-bottom: 2px" /> Points d'intérêt
Les **points d'intérêt** (techniquement appelés _waypoints_) représentent des lieux d'intérêt à afficher sur un appareil GPS ou sur une carte numérique.
En plus de ses coordonnées, un point d'intérêt peut avoir un **nom** et une **description**.