NMEAUtils Namespace Reference

Functions
QByteArray	frame (QByteArrayView body)
	body as one "$<body>*hh\r\n" sentence, with uppercase checksum digits.
QByteArray	repairChecksum (const QByteArray &sentence)
	Rebuild a valid frame with its checksum and CRLF; short or malformed bodies are only terminated.
QByteArray	makeGGA (const NMEA::GGA &fix, const QTime &utc)

Function Documentation

frame()

QByteArray NMEAUtils::frame

(

QByteArrayView

body

)

body as one "$<body>*hh\r\n" sentence, with uppercase checksum digits.

Definition at line 390 of file NMEASentence.cc.

References NMEA::checksum().

Referenced by Quectel::Plan::command(), makeGGA(), and repairChecksum().

makeGGA()

QByteArray NMEAUtils::makeGGA	(	const NMEA::GGA &	fix,
		const QTime &	utc
	)

Build GPGGA from explicit fix fields and UTC, truncated to whole seconds. NaN altitude/geoid separation/HDOP and absent satellite count produce empty fields, not defaults. Returns empty for invalid UTC, out-of-range/nonfinite coordinates, infinite measurements, negative HDOP, or quality above the protocol maximum. Altitude is MSL; geoid separation is signed.

Definition at line 412 of file NMEASentence.cc.

References NMEA::GGA::altitude, NMEA::DECIMAL_BASE, frame(), NMEA::GGA::geoidSeparation, NMEA::GGA::hdop, NMEA::GGA::latitude, NMEA::GGA::longitude, NMEA::GgaQuality::MAX_VALUE, NMEA::MINUTES_PER_DEGREE, NMEA::GGA::quality, and NMEA::GGA::satellitesUsed.

repairChecksum()

QByteArray NMEAUtils::repairChecksum

(

const QByteArray &

sentence

)

Rebuild a valid frame with its checksum and CRLF; short or malformed bodies are only terminated.

Definition at line 396 of file NMEASentence.cc.

References frame(), NMEA::frame(), and NMEA::Sentence::PREFIX_LENGTH.