Sets the specified reference datum for the GPS receiver

If the GPS receiver supports setting the reference datum then the return value will be GPSERROR_NONE, otherwise the return value will be GPSERROR_INVALID_PARAMETER.

The datum refers to the geodetic coordinate system used to specify latitude and longitude. The default system for most receivers supported by the GPS Toolkit is WGS84. Some receivers support changing the datum so that the GPS output will match map data in different datums. Since most receivers do not support this feature, some other approaches would be:

• Transform the map data to WGS84 using simple off the shelf desktop transformation software

• Transform the WGS84 referenced information to the alternate datum before using it with the map data

GPSDATUM

Generic GPS Functions

GPSERROR GPSAPI GpsSetDatum(GPSDATUM gdDatum);

gpsapi.h

gpsapi.h, Generic GPS Functions, See Also