geoSatelliteInfo QML Value Type

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

导入语句：	import QtPositioning 6.5
Since:	Qt 6.5

特性

satelliteIdentifier : int
satelliteSystem : enumeration
signalStrength : real

方法

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

详细描述

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.

另请参阅 QGeoSatelliteInfo .

特性文档编制

[read-only] satelliteIdentifier : int

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.

[read-only] satelliteSystem : enumeration

Holds the GNSS system of the satellite.

常量	描述
`GeoSatelliteInfo.Undefined`	Not defined.
`GeoSatelliteInfo.GPS`	Global Positioning System (USA).
`GeoSatelliteInfo.GLONASS`	Global Positioning System (Russia).
`GeoSatelliteInfo.GALILEO`	Global navigation satellite system (EU).
`GeoSatelliteInfo.BEIDOU`	BeiDou navigation satellite system (China).
`GeoSatelliteInfo.QZSS`	Quasi-Zenith Satellite System (Japan).
`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.

[read-only] signalStrength : real

Holds the signal strength in decibels.

方法文档编制

real attribute ( Attribute 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 ( Attribute attr )

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

见 attribute () for the list of supported attributes.