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.
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 benull
if the implementation cannot provide the data. Coordinates.accuracy
只读-
Returns a
double
representing the accuracy of thelatitude
andlongitude
properties, expressed in meters. Coordinates.altitudeAccuracy
只读-
Returns a
double
representing the accuracy of thealtitude
expressed in meters. This value can benull
. 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 is90
degrees and west is270
degrees). Ifspeed
is0
,heading
isNaN
. If the device is unable to provideheading
information, this value isnull
. Coordinates.speed
只读-
Returns a
double
representing the velocity of the device in meters per second. This value can benull
.
方法
The Coordinates
interface neither implements, nor inherits any method.
规范
Specification |
---|
Geolocation # coordinates_interface |
浏览器兼容性
BCD tables only load in the browser
请参见
- Using geolocation
- The
Geolocation
interface that uses it.