geoSatelliteInfo QML Value Type

The geoSatelliteInfo type represents basic information about a satellite. 更多...

import 語句：	`import QtPositioning`
Since:	Qt 6.5

特性

satelliteIdentifier : int
satelliteSystem : enumeration
signalStrength : real

方法

real attribute (Attribute attr )
bool hasAttribute (Attribute attr )

詳細描述

This type is a QML representation of QGeoSatelliteInfo . The type is uncreatable from QML and can only be used when handling satellite updates from SatelliteSource .

This type contains the satelliteSystem , satelliteIdentifier and signalStrength read-only properties, and also optional attributes.

使用 hasAttribute method to check if the attribute exists or not, and the attribute method to get its value.

另請參閱 QGeoSatelliteInfo .

特性文檔編製

satelliteIdentifier : int [read-only]

Holds the satellite identifier number.

The satellite identifier number can be used to identify a satellite within the satellite system.

The actual value may vary, depending on the platform and the selected backend.

satelliteSystem : enumeration [read-only]

Holds the GNSS system of the satellite.

常量	描述
`GeoSatelliteInfo.Undefined`	未定義。
`GeoSatelliteInfo.GPS`	全球定位係統 (USA 美國)。
`GeoSatelliteInfo.GLONASS`	全球定位係統 (俄羅斯)。
`GeoSatelliteInfo.GALILEO`	全球導航衛星係統 (EU 歐盟)。
`GeoSatelliteInfo.BEIDOU`	北鬥導航衛星係統 (中國)。
`GeoSatelliteInfo.QZSS`	準天頂衛星係統 (日本)。
`GeoSatelliteInfo.Multiple`	This type normally indicates that the information is received from a device that supports multiple satellite systems, and the satellite system is not explicitly specified.
`GeoSatelliteInfo.CustomType`	The first type that can be used for user purposes.

signalStrength : real [read-only]

Holds the signal strength in decibels.

方法文檔編製

real 屬性 ( 屬性 attr )

Returns the value of the attribute attr or -1 if the value has not been set.

The following attributes are supported:

GeoSatelliteInfo.Elevation - the elevation of the satellite, in degrees.
GeoSatelliteInfo.Azimuth - the azimuth to true north, in degrees.

bool hasAttribute ( 屬性 attr )

返迴 true if the satellite information contains the attribute attr . Otherwise returns false .

見 attribute () for the list of supported attributes.