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-rw-r--r--files/ja/web/api/geolocationcoordinates/altitude/index.md31
1 files changed, 14 insertions, 17 deletions
diff --git a/files/ja/web/api/geolocationcoordinates/altitude/index.md b/files/ja/web/api/geolocationcoordinates/altitude/index.md
index 4c99523a52..1176ed512a 100644
--- a/files/ja/web/api/geolocationcoordinates/altitude/index.md
+++ b/files/ja/web/api/geolocationcoordinates/altitude/index.md
@@ -3,42 +3,39 @@ title: GeolocationCoordinates.altitude
slug: Web/API/GeolocationCoordinates/altitude
tags:
- API
- - Geolocation API
+ - 位置情報 API
- GeolocationCoordinates
- - Property
- - Secure context
+ - プロパティ
+ - 安全なコンテキスト
- altitude
browser-compat: api.GeolocationCoordinates.altitude
+translation_of: Web/API/GeolocationCoordinates/altitude
---
{{securecontext_header}}{{APIRef("Geolocation API")}}
-The **`GeolocationCoordinates.altitude`** read-only property is
-a `double` representing the altitude of the position in meters above the [WGS84](http://earth-info.nga.mil/GandG/publications/tr8350.2/wgs84fin.pdf)
-ellipsoid (which defines the nominal sea level surface). This value is `null`
-if the implementation cannot provide this data.
+**`GeolocationCoordinates.altitude`** は読み取り専用のプロパティであり、 `double` 値で、その位置の [WGS84](https://earth-info.nga.mil/GandG/publications/tr8350.2/wgs84fin.pdf) 楕円体(公称海面水準を定義するもの)からの高度をメートル単位で表します。この値は、実装がこのデータを提供できない場合は `null` となります。
-## Syntax
+## 構文
```js
let alt = geolocationCoordinatesInstance.altitude
```
-### Value
+### 値
-A `double` representing the altitude of the position in meters above the [WGS84](http://earth-info.nga.mil/GandG/publications/tr8350.2/wgs84fin.pdf)
-ellipsoid.
+`double` 値で、その位置の [WGS84](https://earth-info.nga.mil/GandG/publications/tr8350.2/wgs84fin.pdf) 楕円体(公称海面レベルを定義するもの)からの高度をメートル単位で表します。
-## Specifications
+## 仕様書
{{Specifications}}
-## Browser compatibility
+## ブラウザーの互換性
{{Compat}}
-## See also
+## 関連情報
-- [Using the Geolocation API](/en-US/docs/Web/API/Geolocation_API/Using_the_Geolocation_API)
-- The {{domxref("GeolocationCoordinates")}} interface it belongs to.
+- [位置情報 API の使用](/ja/docs/Web/API/Geolocation_API/Using_the_Geolocation_API)
+- 所属先の {{domxref("GeolocationCoordinates")}} インターフェイス
- [National
- Imagery and Mapping Agency Technical Report 8350.2, Third Edition (WGS84)](http://earth-info.nga.mil/GandG/publications/tr8350.2/wgs84fin.pdf)
+ Imagery and Mapping Agency Technical Report 8350.2, Third Edition (WGS84)](https://earth-info.nga.mil/GandG/publications/tr8350.2/wgs84fin.pdf)