另请参阅 QGeoSatelliteInfoSource .

成员类型文档编制

enum QGeoSatelliteInfo:: 属性

定义用于卫星信息的属性。

常量	值	描述
QGeoSatelliteInfo::Elevation	0	卫星仰角 (以度为单位)。
QGeoSatelliteInfo::Azimuth	1	正北方位角 (以度为单位)。

enum QGeoSatelliteInfo:: SatelliteSystem

定义卫星的 GNSS 系统。

常量	值	描述
QGeoSatelliteInfo::Undefined	0x00	未定义。
QGeoSatelliteInfo::GPS	0x01	全球定位系统 (USA 美国)。
QGeoSatelliteInfo::GLONASS	0x02	全球定位系统 (俄罗斯)。
QGeoSatelliteInfo::GALILEO	0x03	全球导航卫星系统 (EU 欧盟)。
QGeoSatelliteInfo::BEIDOU	0x04	北斗导航卫星系统 (中国)。
QGeoSatelliteInfo::QZSS	0x05	准天顶卫星系统 (日本)。
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.

特性文档编制

[read-only] satelliteIdentifier : const int

This property 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.

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.

访问函数：

int	satelliteIdentifier () const

[read-only] satelliteSystem : const SatelliteSystem

This property holds the satellite system in use, such as GPS or GLONASS.

访问函数：

QGeoSatelliteInfo::SatelliteSystem

satelliteSystem () const

[read-only] signalStrength : const qreal

This property holds the signal strength.

访问函数：

int	signalStrength () const

成员函数文档编制

QGeoSatelliteInfo:: QGeoSatelliteInfo ()

创建卫星信息对象。

QGeoSatelliteInfo:: QGeoSatelliteInfo (const QGeoSatelliteInfo & other )

创建卫星信息对象采用值为 other .

[noexcept, since 6.2] QGeoSatelliteInfo:: QGeoSatelliteInfo ( QGeoSatelliteInfo && other )

创建卫星信息对象通过移动自 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。

[noexcept] QGeoSatelliteInfo:: ~QGeoSatelliteInfo ()

销毁卫星信息对象。

[invokable] qreal QGeoSatelliteInfo:: 属性 ( QGeoSatelliteInfo::Attribute attribute ) const

返回值为指定 attribute 如 qreal 值。

返回 -1 若值未设置。

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 attribute ) const

返回 true 若指定 attribute 呈现在此更新中。

注意： 此函数可以被援引，通过元对象系统和从 QML。见 Q_INVOKABLE .

void QGeoSatelliteInfo:: removeAttribute ( QGeoSatelliteInfo::Attribute attribute )

移除指定 attribute 及其值。

int QGeoSatelliteInfo:: satelliteIdentifier () const

返回卫星标识符编号。

注意： getter 函数对于特性 satelliteIdentifier。

另请参阅 setSatelliteIdentifier () 和 satelliteSystem ().

QGeoSatelliteInfo::SatelliteSystem QGeoSatelliteInfo:: satelliteSystem () const

返回卫星系统 (GPS、GLONASS...)

注意： 此值可以一起用于 satelliteIdentifier () 以唯一标识卫星。

注意： getter 函数对于特性 satelliteSystem。

另请参阅 setSatelliteSystem () 和 satelliteIdentifier ().

void QGeoSatelliteInfo:: setAttribute ( QGeoSatelliteInfo::Attribute attribute , qreal value )

设置值为 attribute to value .

另请参阅 attribute ().

void QGeoSatelliteInfo:: setSatelliteIdentifier ( int satId )

将卫星标识编号设为 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 ().

void QGeoSatelliteInfo:: setSatelliteSystem ( QGeoSatelliteInfo::SatelliteSystem system )

设置卫星系统 (GPS、GLONASS...) 为 system .

另请参阅 satelliteSystem ().

void QGeoSatelliteInfo:: setSignalStrength ( int signalStrength )

将信号强度设为 signalStrength (以分贝为单位)。

另请参阅 signalStrength ().

int QGeoSatelliteInfo:: signalStrength () const

Returns the signal strength, or -1 if the value has not been set.

注意： getter 函数对于特性 signalStrength。

另请参阅 setSignalStrength ().

[noexcept, since 6.2] void QGeoSatelliteInfo:: swap ( QGeoSatelliteInfo & other )

Swaps this satellite information with other 。此操作非常快且从不失败。

该函数在 Qt 6.2 引入。

[noexcept, 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。

QGeoSatelliteInfo &QGeoSatelliteInfo:: operator= (const QGeoSatelliteInfo & other )

赋值值从 other 到此对象。

相关非成员

bool operator!= (const QGeoSatelliteInfo & lhs , const QGeoSatelliteInfo & rhs )

返回 true if any of the parameters of the lhs satellite are not the same as those of rhs . Otherwise returns false .

QDataStream & operator<< ( QDataStream & stream , const QGeoSatelliteInfo & info )

写入给定 info 到指定 stream .

另请参阅 序列化 Qt 数据类型 .

bool operator== (const QGeoSatelliteInfo & lhs , const QGeoSatelliteInfo & rhs )

返回 true if all the parameters of the lhs satellite are the same as those of rhs . Otherwise returns false .

QDataStream & operator>> ( QDataStream & stream , QGeoSatelliteInfo & info )

Reads satellite information from the specified stream 进给定 info .

另请参阅 序列化 Qt 数据类型 .