SDP Code
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Diff: GPS_Time.h
- Revision:
- 2:8aa059e7d8b1
- Parent:
- 0:db98027c0bbb
- Child:
- 5:7f130f85d5a4
--- a/GPS_Time.h Sat Nov 20 21:02:06 2010 +0000 +++ b/GPS_Time.h Fri Apr 15 12:23:52 2011 +0000 @@ -48,6 +48,14 @@ int hundreths; //! Time status. char status; + //! The velocity (in knots) + double velocity; + //! The track (in decimal degrees true) + double track; + //! The magnetic variation direction + char magvar_dir; + //! The magnetic variation value + double magvar; GPS_Time(); void fractionalReset(void) { tenths = hundreths = 0; } @@ -56,6 +64,12 @@ GPS_Time * timeNow(GPS_Time *n); GPS_Time * timeNow(void) { return timeNow(NULL); } void nmea_rmc(char *s); + double velocity_knots(void) { return velocity; } + double velocity_kph(void) { return (velocity * 1.852); } + double velocity_mps(void) { return velocity_kph() / 3600.0; } + double velocity_mph(void) { return velocity_kph() / 0.621371192; } + double track_over_ground(void) { return track; } + double magnetic_variation(void) { return magvar_dir == 'W' ? (magvar * -1.0) : (magvar); } double julian_day_number(GPS_Time *t); double julian_date(GPS_Time *t); double julian_day_number(void) { return julian_day_number(this); }