Evaluates NMEA sentences coming from a GPS device. More...

#include <qgsnmeaconnection.h>

Inheritance diagram for QgsNmeaConnection:

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Public Member Functions
	QgsNmeaConnection (QIODevice *device)
	Constructs a QgsNmeaConnection with given device.

Public Member Functions inherited from QgsGpsConnection
	QgsGpsConnection (QIODevice *dev)
	Constructor.

	~QgsGpsConnection () override

bool	close ()
	Closes connection to device.

bool	connect ()
	Opens connection to device.

QgsGpsInformation	currentGPSInformation () const
	Returns the current gps information (lat, lon, etc.)

QgsPoint	lastValidLocation () const
	Returns the last valid location obtained by the device.

void	setSource (QIODevice *source)
	Sets the GPS source. The class takes ownership of the device class.

Status	status () const
	Returns the status. Possible state are not connected, connected, data received.

Protected Slots
void	parseData () override
	Parse available data source content.

Protected Slots inherited from QgsGpsConnection
virtual void	parseData ()=0
	Parse available data source content.

Protected Member Functions
void	processGgaSentence (const char *data, int len)
	process GGA sentence

void	processGsaSentence (const char *data, int len)
	process GSA sentence

void	processGstSentence (const char *data, int len)
	process GST sentence

void	processGsvSentence (const char *data, int len)
	process GSV sentence

void	processHchdgSentence (const char *data, int len)
	process HCHDG sentence

void	processHdtSentence (const char *data, int len)
	process HDT sentence

void	processRmcSentence (const char *data, int len)
	process RMC sentence

void	processStringBuffer ()
	Splits mStringBuffer into sentences and calls libnmea.

void	processVtgSentence (const char *data, int len)
	process VTG sentence

Protected Attributes
QString	mStringBuffer
	Store data from the device before it is processed.

Protected Attributes inherited from QgsGpsConnection
QgsGpsInformation	mLastGPSInformation
	Last state of the gps related variables (e.g. position, time, ...)

std::unique_ptr< QIODevice >	mSource
	Data source (e.g. serial device, socket, file,...)

Status	mStatus = NotConnected
	Connection status.

Additional Inherited Members
Public Types inherited from QgsGpsConnection
enum	Status { NotConnected , Connected , DataReceived , GPSDataReceived }

Signals inherited from QgsGpsConnection
void	fixStatusChanged (Qgis::GpsFixStatus status)
	Emitted when the GPS device fix status is changed.

void	nmeaSentenceReceived (const QString &substring)
	Emitted whenever the GPS device receives a raw NMEA sentence.

void	positionChanged (const QgsPoint &point)
	Emitted when the GPS position changes.

void	stateChanged (const QgsGpsInformation &info)
	Emitted whenever the GPS state is changed.

Static Public Attributes inherited from QgsGpsConnection
static const QgsSettingsEntryInteger *	settingGpsAcquisitionInterval = new QgsSettingsEntryInteger( QStringLiteral( "acquisition-interval" ), QgsSettingsTree::sTreeGps, 0, QStringLiteral( "GPS track point acquisition interval" ) )
	Settings entry GPS track point acquisition interval.

static const QgsSettingsEntryBool *	settingGpsApplyLeapSecondsCorrection = new QgsSettingsEntryBool( QStringLiteral( "apply-leap-seconds-correction" ), QgsSettingsTree::sTreeGps, true, QStringLiteral( "Whether leap seconds corrections should be applied to GPS timestamps" ) )
	Settings entry GPS apply leap seconds correction.

static const QgsSettingsEntryBool *	settingGpsBearingFromTravelDirection = new QgsSettingsEntryBool( QStringLiteral( "calculate-bearing-from-travel" ), QgsSettingsTree::sTreeGps, false, QStringLiteral( "Calculate GPS bearing from travel direction" ) )
	Settings entry GPS calculate bearing from travel direction.

static const QgsSettingsEntryDouble *	settingGpsDistanceThreshold = new QgsSettingsEntryDouble( QStringLiteral( "distance-threshold" ), QgsSettingsTree::sTreeGps, 0, QStringLiteral( "GPS track point distance threshold" ) )
	Settings entry GPS track point distance threshold.

static const QgsSettingsEntryInteger *	settingGpsLeapSeconds = new QgsSettingsEntryInteger( QStringLiteral( "leap-seconds" ), QgsSettingsTree::sTreeGps, 18, QStringLiteral( "Leap seconds correction amount (in seconds)" ) )
	Settings entry GPS leap seconds correction amount (in seconds)

static const QgsSettingsEntryEnumFlag< Qgis::GpsConnectionType > *	settingsGpsConnectionType = new QgsSettingsEntryEnumFlag<Qgis::GpsConnectionType>( QStringLiteral( "gps-connection-type" ), QgsSettingsTree::sTreeGps, Qgis::GpsConnectionType::Automatic, QStringLiteral( "GPS connection type" ) )
	Settings entry GPS connection type.

static const QgsSettingsEntryString *	settingsGpsdDeviceName = new QgsSettingsEntryString( QStringLiteral( "gpsd-device-name" ), QgsSettingsTree::sTreeGps, QString(), QStringLiteral( "GPSD connection device name" ) )
	Settings entry GPSD device name.

static const QgsSettingsEntryString *	settingsGpsdHostName = new QgsSettingsEntryString( QStringLiteral( "gpsd-host-name" ), QgsSettingsTree::sTreeGps, QString(), QStringLiteral( "GPSD connection host name" ) )
	Settings entry GPSD host name.

static const QgsSettingsEntryInteger *	settingsGpsdPortNumber = new QgsSettingsEntryInteger( QStringLiteral( "gpsd-port" ), QgsSettingsTree::sTreeGps, 2947, QStringLiteral( "GPSD port number" ) )
	Settings entry GPSD port number.

static const QgsSettingsEntryString *	settingsGpsSerialDevice = new QgsSettingsEntryString( QStringLiteral( "gpsd-serial-device" ), QgsSettingsTree::sTreeGps, QString(), QStringLiteral( "GPS serial device name" ) )
	Settings entry GPS serial device name.

static const QgsSettingsEntryInteger *	settingsGpsTimeStampOffsetFromUtc = new QgsSettingsEntryInteger( QStringLiteral( "timestamp-offset-from-utc" ), QgsSettingsTree::sTreeGps, 0, QStringLiteral( "GPS time stamp offset from UTC (in seconds)" ) )
	Settings entry GPS time offset from UTC in seconds.

static const QgsSettingsEntryEnumFlag< Qt::TimeSpec > *	settingsGpsTimeStampSpecification = new QgsSettingsEntryEnumFlag<Qt::TimeSpec>( QStringLiteral( "timestamp-time-spec" ), QgsSettingsTree::sTreeGps, Qt::TimeSpec::LocalTime, QStringLiteral( "GPS time stamp specification" ) )
	Settings entry time specification for GPS time stamps.

static const QgsSettingsEntryString *	settingsGpsTimeStampTimeZone = new QgsSettingsEntryString( QStringLiteral( "timestamp-time-zone" ), QgsSettingsTree::sTreeGps, QString(), QStringLiteral( "GPS time stamp time zone" ) )
	Settings entry GPS time stamp time zone.

Detailed Description

Evaluates NMEA sentences coming from a GPS device.

Definition at line 28 of file qgsnmeaconnection.h.

Constructor & Destructor Documentation

◆ QgsNmeaConnection()

QgsNmeaConnection::QgsNmeaConnection ( QIODevice * device )

Constructs a QgsNmeaConnection with given device.

Ownership of device is transferred to the connection.

Definition at line 37 of file qgsnmeaconnection.cpp.

Member Function Documentation

◆ parseData

void QgsNmeaConnection::parseData ( )

overrideprotectedslot

Parse available data source content.

Definition at line 42 of file qgsnmeaconnection.cpp.

◆ processGgaSentence()

void QgsNmeaConnection::processGgaSentence	(	const char *	data,
		int	len
	)

protected

process GGA sentence

Definition at line 184 of file qgsnmeaconnection.cpp.

◆ processGsaSentence()

void QgsNmeaConnection::processGsaSentence	(	const char *	data,
		int	len
	)

protected

process GSA sentence

Definition at line 473 of file qgsnmeaconnection.cpp.

◆ processGstSentence()

void QgsNmeaConnection::processGstSentence	(	const char *	data,
		int	len
	)

protected

process GST sentence

Definition at line 233 of file qgsnmeaconnection.cpp.

◆ processGsvSentence()

void QgsNmeaConnection::processGsvSentence	(	const char *	data,
		int	len
	)

protected

process GSV sentence

Definition at line 385 of file qgsnmeaconnection.cpp.

◆ processHchdgSentence()

void QgsNmeaConnection::processHchdgSentence	(	const char *	data,
		int	len
	)

protected

process HCHDG sentence

Definition at line 261 of file qgsnmeaconnection.cpp.

◆ processHdtSentence()

void QgsNmeaConnection::processHdtSentence	(	const char *	data,
		int	len
	)

protected

process HDT sentence

Definition at line 252 of file qgsnmeaconnection.cpp.

◆ processRmcSentence()

void QgsNmeaConnection::processRmcSentence	(	const char *	data,
		int	len
	)

protected

process RMC sentence

Definition at line 274 of file qgsnmeaconnection.cpp.

◆ processStringBuffer()

void QgsNmeaConnection::processStringBuffer ( )

protected

Splits mStringBuffer into sentences and calls libnmea.

Definition at line 85 of file qgsnmeaconnection.cpp.

◆ processVtgSentence()

void QgsNmeaConnection::processVtgSentence	(	const char *	data,
		int	len
	)

protected

process VTG sentence

Definition at line 462 of file qgsnmeaconnection.cpp.

Member Data Documentation

◆ mStringBuffer

QString QgsNmeaConnection::mStringBuffer

protected

Store data from the device before it is processed.

Definition at line 46 of file qgsnmeaconnection.h.

The documentation for this class was generated from the following files:

/build/qgis-3.40.0+99sid/src/core/gps/qgsnmeaconnection.h
/build/qgis-3.40.0+99sid/src/core/gps/qgsnmeaconnection.cpp

Public Member Functions

Protected Slots

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ QgsNmeaConnection()

Member Function Documentation

◆ parseData

◆ processGgaSentence()

◆ processGsaSentence()

◆ processGstSentence()

◆ processGsvSentence()

◆ processHchdgSentence()

◆ processHdtSentence()

◆ processRmcSentence()

◆ processStringBuffer()

◆ processVtgSentence()

Member Data Documentation

◆ mStringBuffer