NMEAUtils Namespace Reference

Functions
quint8	computeChecksum (const QByteArray &body)
	Compute XOR checksum over NMEA body (between '$' and '*').
bool	verifyChecksum (const QByteArray &sentence)
QByteArray	repairChecksum (const QByteArray &sentence)
	Repair or append a valid NMEA checksum and ensure CRLF termination.
QByteArray	makeGGA (const QGeoCoordinate &coord, double altitudeMsl, int fixQuality=1, int numSatellites=12)
	Build a GGA sentence from a coordinate and altitude.

Function Documentation

computeChecksum()

quint8 NMEAUtils::computeChecksum

(

const QByteArray &

body

)

Compute XOR checksum over NMEA body (between '$' and '*').

Definition at line 7 of file NMEAUtils.cc.

Referenced by makeGGA(), repairChecksum(), and verifyChecksum().

makeGGA()

QByteArray NMEAUtils::makeGGA	(	const QGeoCoordinate &	coord,
		double	altitudeMsl,
		int	fixQuality,
		int	numSatellites
	)

Build a GGA sentence from a coordinate and altitude.

Definition at line 68 of file NMEAUtils.cc.

References computeChecksum().

repairChecksum()

QByteArray NMEAUtils::repairChecksum

(

const QByteArray &

sentence

)

Repair or append a valid NMEA checksum and ensure CRLF termination.

Definition at line 31 of file NMEAUtils.cc.

References computeChecksum().

Referenced by NTRIPHttpTransport::sendNMEA().

verifyChecksum()

bool NMEAUtils::verifyChecksum

(

const QByteArray &

sentence

)

Validate an NMEA sentence's checksum. Accepts sentences of the form $BODY*XX (with or without CRLF suffix). Returns false if the sentence is malformed or the checksum does not match.

Definition at line 16 of file NMEAUtils.cc.

References computeChecksum().