ardupilot/libraries/AP_GPS/GPS.h

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#ifndef GPS_h
#define GPS_h
#include <inttypes.h>
class GPS
{
public:
// Methods
virtual void init();
virtual void update();
// Properties
long time; //GPS Millisecond Time of Week
long lattitude; // Geographic coordinates
long longitude;
long altitude;
long ground_speed;
long ground_course;
long speed_3d;
uint8_t num_sats; // Number of visible satelites
uint8_t fix; // 1:GPS FIX 0:No FIX (normal logic)
uint8_t new_data; // 1:New GPS Data
uint8_t print_errors; // 1: To Print GPS Errors (for debug)
long GPS_timer;
union long_union {
int32_t dword;
uint8_t byte[4];
} longUnion;
union int_union {
int16_t word;
uint8_t byte[2];
} intUnion;
};
#endif