QgsNMEAConnection Class Reference

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

#include <qgsnmeaconnection.h>

Inheritance diagram for QgsNMEAConnection:

Collaboration diagram for QgsNMEAConnection:

Public Member Functions
	QgsNMEAConnection (QIODevice *dev)
	~QgsNMEAConnection ()
Public Member Functions inherited from QgsGPSConnection
	QgsGPSConnection (QIODevice *dev)
	Constructor.
virtual	~QgsGPSConnection ()
bool	connect ()
	Opens connection to device.
bool	close ()
	Closes connection to device.
void	setSource (QIODevice *source)
	Sets the GPS source.
Status	status () const
	Returns the status.
QgsGPSInformation	currentGPSInformation () const
	Returns the current gps information (lat, lon, etc.)

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

Protected Member Functions
void	processStringBuffer ()
	Splits mStringBuffer into sentences and calls libnmea.
void	processGGASentence (const char *data, int len)
void	processRMCSentence (const char *data, int len)
void	processGSVSentence (const char *data, int len)
void	processVTGSentence (const char *data, int len)
void	processGSASentence (const char *data, int len)

Protected Attributes
QString	mStringBuffer
	Store data from the device before it is processed.
Protected Attributes inherited from QgsGPSConnection
QIODevice *	mSource
	Data source (e.g.
QgsGPSInformation	mLastGPSInformation
	Last state of the gps related variables (e.g.
Status	mStatus
	Connection status.

Additional Inherited Members
Public Types inherited from QgsGPSConnection
enum	Status { NotConnected, Connected, DataReceived, GPSDataReceived }
Signals inherited from QgsGPSConnection
void	stateChanged (const QgsGPSInformation &info)
void	nmeaSentenceReceived (const QString &substring)

Detailed Description

Evaluates NMEA sentences coming from a GPS device.

Definition at line 24 of file qgsnmeaconnection.h.

Constructor & Destructor Documentation

QgsNMEAConnection::QgsNMEAConnection

(

QIODevice *

dev

)

Definition at line 34 of file qgsnmeaconnection.cpp.

QgsNMEAConnection::~QgsNMEAConnection

(

)

Definition at line 38 of file qgsnmeaconnection.cpp.

Member Function Documentation

void QgsNMEAConnection::parseData ( )

protectedslot

Parse available data source content.

Definition at line 43 of file qgsnmeaconnection.cpp.

References QgsGPSConnection::DataReceived, QgsGPSConnection::GPSDataReceived, QgsGPSConnection::mLastGPSInformation, QgsGPSConnection::mSource, QgsGPSConnection::mStatus, mStringBuffer, processStringBuffer(), QgsDebugMsg, and QgsGPSConnection::stateChanged().

void QgsNMEAConnection::processGGASentence ( const char *  data, int  len  )

protected

Definition at line 141 of file qgsnmeaconnection.cpp.

References QgsGPSInformation::elevation, _nmeaGPGGA::elv, _nmeaGPGGA::ew, _nmeaGPGGA::lat, QgsGPSInformation::latitude, _nmeaGPGGA::lon, QgsGPSInformation::longitude, QgsGPSConnection::mLastGPSInformation, nmea_ndeg2degree(), nmea_parse_GPGGA(), _nmeaGPGGA::ns, QgsGPSInformation::quality, QgsGPSInformation::satellitesUsed, _nmeaGPGGA::satinuse, and _nmeaGPGGA::sig.

Referenced by processStringBuffer().

void QgsNMEAConnection::processGSASentence ( const char *  data, int  len  )

protected

Definition at line 241 of file qgsnmeaconnection.cpp.

References _nmeaGPGSA::fix_mode, _nmeaGPGSA::fix_type, QgsGPSInformation::fixMode, QgsGPSInformation::fixType, QgsGPSInformation::hdop, _nmeaGPGSA::HDOP, QgsGPSConnection::mLastGPSInformation, NMEA_MAXSAT, nmea_parse_GPGSA(), QgsGPSInformation::pdop, _nmeaGPGSA::PDOP, _nmeaGPGSA::sat_prn, QgsGPSInformation::satPrn, QgsGPSInformation::vdop, and _nmeaGPGSA::VDOP.

Referenced by processStringBuffer().

void QgsNMEAConnection::processGSVSentence ( const char *  data, int  len  )

protected

Definition at line 203 of file qgsnmeaconnection.cpp.

References QgsSatelliteInfo::azimuth, _nmeaSATELLITE::azimuth, QgsSatelliteInfo::elevation, _nmeaSATELLITE::elv, QgsSatelliteInfo::id, _nmeaSATELLITE::id, _nmeaSATELLITE::in_use, QgsSatelliteInfo::inUse, QgsGPSConnection::mLastGPSInformation, nmea_parse_GPGSV(), NMEA_SATINPACK, _nmeaGPGSV::pack_count, _nmeaGPGSV::pack_index, _nmeaGPGSV::sat_data, QgsGPSInformation::satellitesInView, QgsGPSInformation::satInfoComplete, _nmeaSATELLITE::sig, and QgsSatelliteInfo::signal.

Referenced by processStringBuffer().

void QgsNMEAConnection::processRMCSentence ( const char *  data, int  len  )

protected

Definition at line 166 of file qgsnmeaconnection.cpp.

References _nmeaTIME::day, QgsGPSInformation::direction, _nmeaGPRMC::direction, _nmeaGPRMC::ew, _nmeaTIME::hour, KNOTS_TO_KMH, _nmeaGPRMC::lat, QgsGPSInformation::latitude, _nmeaGPRMC::lon, QgsGPSInformation::longitude, _nmeaTIME::min, QgsGPSConnection::mLastGPSInformation, _nmeaTIME::mon, _nmeaTIME::msec, nmea_ndeg2degree(), nmea_parse_GPRMC(), _nmeaGPRMC::ns, QgsDebugMsg, _nmeaTIME::sec, QgsGPSInformation::speed, _nmeaGPRMC::speed, QgsGPSInformation::status, _nmeaGPRMC::status, _nmeaGPRMC::utc, QgsGPSInformation::utcDateTime, and _nmeaTIME::year.

Referenced by processStringBuffer().

void QgsNMEAConnection::processStringBuffer ( )

protected

Splits mStringBuffer into sentences and calls libnmea.

Definition at line 77 of file qgsnmeaconnection.cpp.

References QgsGPSConnection::GPSDataReceived, QgsGPSConnection::mStatus, mStringBuffer, QgsGPSConnection::nmeaSentenceReceived(), processGGASentence(), processGSASentence(), processGSVSentence(), processRMCSentence(), processVTGSentence(), and QgsDebugMsg.

Referenced by parseData().

void QgsNMEAConnection::processVTGSentence ( const char *  data, int  len  )

protected

Definition at line 232 of file qgsnmeaconnection.cpp.

References QgsGPSConnection::mLastGPSInformation, nmea_parse_GPVTG(), QgsGPSInformation::speed, and _nmeaGPVTG::spk.

Referenced by processStringBuffer().

Member Data Documentation

QString QgsNMEAConnection::mStringBuffer

protected

Store data from the device before it is processed.

Definition at line 37 of file qgsnmeaconnection.h.

Referenced by parseData(), and processStringBuffer().

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

• /tmp/buildd/qgis-2.2.0+wheezy1/src/core/gps/qgsnmeaconnection.h
• /tmp/buildd/qgis-2.2.0+wheezy1/src/core/gps/qgsnmeaconnection.cpp