The QGeoSatelliteInfo class contains basic information about a satellite. 更多...
| 头： | #include <QGeoSatelliteInfo> |
| CMake: |
find_package(Qt6 REQUIRED COMPONENTS Positioning)
target_link_libraries(mytarget PRIVATE Qt6::Positioning) |
| qmake: | QT += positioning |
| enum | Attribute { Elevation, Azimuth } |
| enum | SatelliteSystem { Undefined, GPS, GLONASS, GALILEO, BEIDOU, …, CustomType } |
| QGeoSatelliteInfo () | |
| QGeoSatelliteInfo (const QGeoSatelliteInfo & other ) | |
| QGeoSatelliteInfo (QGeoSatelliteInfo && other ) | |
| ~QGeoSatelliteInfo () | |
| qreal | 属性 (QGeoSatelliteInfo::Attribute 属性 ) const |
| bool | hasAttribute (QGeoSatelliteInfo::Attribute 属性 ) const |
| void | removeAttribute (QGeoSatelliteInfo::Attribute 属性 ) |
| int | satelliteIdentifier () const |
| QGeoSatelliteInfo::SatelliteSystem | satelliteSystem () const |
| void | setAttribute (QGeoSatelliteInfo::Attribute 属性 , qreal value ) |
| void | setSatelliteIdentifier (int satId ) |
| void | setSatelliteSystem (QGeoSatelliteInfo::SatelliteSystem system ) |
| void | setSignalStrength (int signalStrength ) |
| int | signalStrength () const |
| QGeoSatelliteInfo & | operator= (const QGeoSatelliteInfo & other ) |
| QGeoSatelliteInfo & | operator= (QGeoSatelliteInfo && other ) |
| bool | operator!= (const QGeoSatelliteInfo & lhs , const QGeoSatelliteInfo & rhs ) |
| QDataStream & | operator<< (QDataStream & stream , const QGeoSatelliteInfo & info ) |
| bool | operator== (const QGeoSatelliteInfo & lhs , const QGeoSatelliteInfo & rhs ) |
| QDataStream & | operator>> (QDataStream & stream , QGeoSatelliteInfo & info ) |
另请参阅 QGeoSatelliteInfoSource .
Defines the attributes for the satellite information.
| 常量 | 值 | 描述 |
|---|---|---|
QGeoSatelliteInfo::Elevation
|
0
|
The elevation of the satellite, in degrees. |
QGeoSatelliteInfo::Azimuth
|
1
|
The azimuth to true north, in degrees. |
Defines the GNSS system of the satellite.
| 常量 | 值 | 描述 |
|---|---|---|
QGeoSatelliteInfo::Undefined
|
0x00
|
Not defined. |
QGeoSatelliteInfo::GPS
|
0x01
|
Global Positioning System (USA). |
QGeoSatelliteInfo::GLONASS
|
0x02
|
Global Positioning System (Russia). |
QGeoSatelliteInfo::GALILEO
|
0x03
|
Global navigation satellite system (EU). |
QGeoSatelliteInfo::BEIDOU
|
0x04
|
BeiDou navigation satellite system (China). |
QGeoSatelliteInfo::QZSS
|
0x05
|
Quasi-Zenith Satellite System (Japan). |
QGeoSatelliteInfo::Multiple
|
0xFF
|
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. Depending on the data source, you might use other information to determine the actual system type. One example of the usage of this type is an NMEA $GNGSA message, which contains the IDs of the satellites being used, but does not explicitly mention their system types. |
QGeoSatelliteInfo::CustomType
|
0x100
|
The first type that can be used for user purposes. For example when reimplementing NMEA data parsing in
QNmeaSatelliteInfoSource
. User can add more types using
CustomType + 1
,
CustomType + 2
and so on.
|
Creates a satellite information object.
Creates a satellite information object with the values of other .
[since 6.2]
QGeoSatelliteInfo::
QGeoSatelliteInfo
(
QGeoSatelliteInfo
&&
other
)
Creates a satellite information object by moving from other .
Note that a moved-from QGeoSatelliteInfo can only be destroyed or assigned to. The effect of calling other functions than the destructor or one of the assignment operators is undefined.
该函数在 Qt 6.2 引入。
Destroys a satellite information object.
[invokable]
qreal
QGeoSatelliteInfo::
属性
(
QGeoSatelliteInfo::Attribute
属性
) const
Returns the value of the specified attribute as a qreal value.
Returns -1 if the value has not been set.
注意： 此函数可以被援引，通过元对象系统和从 QML。见 Q_INVOKABLE .
另请参阅 hasAttribute () 和 setAttribute ().
[invokable]
bool
QGeoSatelliteInfo::
hasAttribute
(
QGeoSatelliteInfo::Attribute
属性
) const
返回 true 若指定 attribute is present in this update.
注意： 此函数可以被援引，通过元对象系统和从 QML。见 Q_INVOKABLE .
移除指定 attribute and its value.
Returns 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.
例如，若 nmea plugin is used, the satellite identifier for GPS satellite system represents the PRN (Pseudo-random noise) number, and the satellite identifier for GLONASS satellite system represents the slot number.
For NMEA-based backends the satellite identifier can be used to determine the satellite system type if it is not available from other sources. You can refer to satellite IDs list to check the ID ranges for different satellite systems.
注意： Depending on the platform and the selected backend, the satellite identifier ranges for different satellite systems may intersect. To uniquely identify a satellite, a combination of satelliteIndetifier() and satelliteSystem () must be used.
注意： Getter function for property satelliteIdentifier.
另请参阅 setSatelliteIdentifier () 和 satelliteSystem ().
Returns the Satellite System (GPS, GLONASS, ...)
注意： This value can be used together with satelliteIdentifier () to uniquely identify a satellite.
注意： Getter function for property satelliteSystem.
另请参阅 setSatelliteSystem () 和 satelliteIdentifier ().
Sets the value for attribute to value .
另请参阅 属性 ().
Sets the satellite identifier number to satId .
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.
例如，若 nmea plugin is used, the satellite identifier for GPS satellite system represents the PRN (Pseudo-random noise) number, and the satellite identifier for GLONASS satellite system represents the slot number.
另请参阅 satelliteIdentifier ().
Sets the Satellite System (GPS, GLONASS, ...) to system .
另请参阅 satelliteSystem ().
Sets the signal strength to signalStrength , in decibels.
另请参阅 signalStrength ().
Returns the signal strength, or -1 if the value has not been set.
注意： Getter function for property signalStrength.
另请参阅 setSignalStrength ().
Assigns the values from other 到此对象。
[since 6.2]
QGeoSatelliteInfo
&QGeoSatelliteInfo::
operator=
(
QGeoSatelliteInfo
&&
other
)
Move-assigns the value from other to this object
Note that a moved-from QGeoSatelliteInfo can only be destroyed or assigned to. The effect of calling other functions than the destructor or one of the assignment operators is undefined.
该函数在 Qt 6.2 引入。
返回
true
if any of the parameters of the
lhs
satellite are not the same as those of
rhs
. Otherwise returns
false
.
写入给定 info 到指定 stream .
另请参阅 序列化 Qt 数据类型 .
返回
true
if all the parameters of the
lhs
satellite are the same as those of
rhs
. Otherwise returns
false
.
Reads satellite information from the specified stream 进给定 info .
另请参阅 序列化 Qt 数据类型 .