* 仕様書

[REFS[
- [1] ([TIME[2014-08-07 02:03:14 +09:00]] 版) <http://www.topografix.com/GPX/1/1/gpx.xsd>
]REFS]

* 属性

[3] [CODE(XMLa)@en[href]] [[属性]]は、[[必須]]です [SRC[>>1]]。

* 内容

[2] 
[FIG(short list)[
= [CODE(XMLe)@en[text]] [[要素]] (0-1)
= [CODE(XMLe)@en[type]] [[要素]] (0-1)
]FIG]

* 文脈

[4] 次の[[要素]]で[[子要素]]として使うことができます [SRC[>>1]]。
[FIG(short list)[
- [CODE(XMLe)@en[metadata][metadata (GPX)]]
- [CODE(XMLe)@en[author][author (GPX)]]
- [CODE(XMLe)@en[wpt]]
- [CODE(XMLe)@en[rte]]
- [CODE(XMLe)@en[rtept]]
- [CODE(XMLe)@en[trk]]
- [CODE(XMLe)@en[trkpt]]
]FIG]

[5] [CODE(XMLe)@en[author][author (GPX)]] では高々1つ、
それ以外では任意個、使うことができます [SRC[>>1]]。

[FIG(quote)[
[FIGCAPTION[
[6] [CITE[GPX - GPS Exchange Format]]
([TIME[2016-04-09 20:05:35 +09:00]] 版)
<http://www.gdal.org/drv_gpx.html>
]FIGCAPTION]

> 
> By default, up to 2 <link> elements can be taken into account by feature. This default number can be changed with the GPX_N_MAX_LINKS environment variable.

]FIG]