Coordinates

Baseline Widely available *

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

* Some parts of this feature may have varying levels of support.

Coordinates (坐标)接口表示设备在地球上的位置和海拔,以及计算这些属性的精确度。

属性

The Coordinates interface doesn't inherit any property.

Coordinates.latitude 只读

Returns a double representing the position's latitude in decimal degrees.

Coordinates.longitude 只读

Returns a double representing the position's longitude in decimal degrees.

Coordinates.altitude 只读

Returns a double representing the position's altitude in metres, relative to sea level. This value can be null if the implementation cannot provide the data.

Coordinates.accuracy 只读

Returns a double representing the accuracy of the latitude and longitude properties, expressed in meters.

Coordinates.altitudeAccuracy 只读

Returns a double representing the accuracy of the altitude expressed in meters. This value can be null.

Coordinates.heading 只读

Returns a double representing the direction in which the device is traveling. This value, specified in degrees, indicates how far off from heading due north the device is. 0 degrees represents true true north, and the direction is determined clockwise (which means that east is 90 degrees and west is 270 degrees). If speed is 0, heading is NaN. If the device is unable to provide heading information, this value is null.

Coordinates.speed 只读

Returns a double representing the velocity of the device in meters per second. This value can be null.

方法

The Coordinates interface neither implements, nor inherits any method.

规范

Specification
Geolocation
# coordinates_interface

浏览器兼容性

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
GeolocationCoordinates
accuracy
altitude
altitudeAccuracy
heading
latitude
longitude
Secure context required
speed
toJSON

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
No support
No support
Uses a non-standard name.
Has more compatibility info.

请参见