QNmeaPositionInfoSource Class Reference

Detailed Description

The QNmeaPositionInfoSource class provides positional information using a NMEA data source.

NMEA is a commonly used protocol for the specification of one's global position at a certain point in time. The QNmeaPositionInfoSource class reads NMEA data and uses it to provide positional data in the form of QGeoPositionInfo objects.

A QNmeaPositionInfoSource instance operates in either RealTimeMode or SimulationMode. These modes allow NMEA data to be read from either a live source of positional data, or replayed for simulation purposes from previously recorded NMEA data.

Use setUpdateMode() to define the update mode, and setDevice() to set the source of NMEA data.

Use startUpdates() to receive regular position updates through the updated() signal, and stopUpdates() to stop these updates. If you only require updates occasionally, you can call requestUpdate() as required, instead of startUpdates() and stopUpdates().

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