The QGeoSatelliteInfo class contains basic information about a satellite. 更多...
头: | #include <QGeoSatelliteInfo> |
qmake: | QT += positioning |
Since: | Qt 5.2 |
该类在 Qt 5.2 引入。
enum | 属性 { Elevation, Azimuth } |
enum | SatelliteSystem { Undefined, GPS, GLONASS } |
QGeoSatelliteInfo (const QGeoSatelliteInfo & other ) | |
QGeoSatelliteInfo () | |
QGeoSatelliteInfo & | operator= (const 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 |
bool | operator!= (const QGeoSatelliteInfo & other ) const |
bool | operator== (const QGeoSatelliteInfo & other ) const |
QDataStream & | operator<< (QDataStream & stream , const QGeoSatelliteInfo & info ) |
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). |
Creates a satellite information object with the values of other .
Creates a satellite information object.
Assigns the values from other 到此对象。
Destroys a satellite information object.
Returns the value of the specified 属性 as a qreal value.
Returns -1 if the value has not been set.
另请参阅 hasAttribute () 和 setAttribute ().
返回 true 若指定 属性 is present in this update.
移除指定 属性 and its value.
Returns the satellite identifier number.
The satellite identifier number can be used to identify a satellite inside the satellite system. For satellite system GPS the satellite identifier number represents the PRN (Pseudo-random noise) number. For satellite system GLONASS the satellite identifier number represents the slot number.
另请参阅 setSatelliteIdentifier ().
Returns the Satellite System (GPS, GLONASS, ...)
另请参阅 setSatelliteSystem ().
Sets the value for 属性 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 inside the satellite system. For satellite system GPS the satellite identifier number represents the PRN (Pseudo-random noise) number. For satellite system GLONASS the satellite identifier number 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.
另请参阅 setSignalStrength ().
Returns true if any of the information for this satellite are not the same as those of other .
Returns true if all the information for this satellite are the same as those of other .
写入给定 info 到指定 stream .
另请参阅 序列化 Qt 数据类型 .
Reads satellite information from the specified stream 进给定 info .
另请参阅 序列化 Qt 数据类型 .