gpx.studio/website/src/lib/docs/zh/gpx.mdx
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---
title: GPX 文件格式
---
<script>
import { Waypoints, MapPin } from 'lucide-svelte';
</script>
# { title }
<a href="https://www.topografix.com/gpx.asp" target="_blank">GPX 文件格式</a> 是应用程序和 GPS 设备之间交换 GPS 数据的一种开放标准。
它本质上由一系列 GPS 点组成,用以编码形成一条或多条轨迹,以及兴趣点(可选)。
还可以包含元数据,其中 **名称name** 和 **描述description** 字段对用户最有用。
### <Waypoints size="16" class="inline-block" style="margin-bottom: 2px" /> 轨迹、路段和 GPS 点
如上所述GPX 文件可包含多条 GPS 轨迹。
它们按照分层结构组织起来,其中轨迹位于顶层:
- **轨迹** 由一系列不相连的路段组成。
它可以包含 **名称**、**描述** 和 **外观属性** 等元数据;
- **路段** 是由一系列 GPS 点组成的连续路径;
- **GPS 点** 主要用来存储一个位置的经纬度,也可包含时间戳和高度信息。
一些设备可能还会记录心率、节奏、温度和功率等其他信息;
GPX 文件通常只包含一条轨迹,且该轨迹仅有一个路段。
不过这个层级结构支持高级用法,例如用来规划多日旅程且每日可包含多个行程信息。
### <MapPin size="16" class="inline-block" style="margin-bottom: 2px" /> 兴趣点
**兴趣点**_航点_用来表示 GPS 设备或数字地图上需要显示的特殊位置。
除坐标外,兴趣点也可包含 **名称** 和 **描述** 信息。