PDR/1.Software/PDR 1.04/3rdparty/lwgps-develop/dev/VisualStudio/main.c

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2022-10-07 23:49:43 +08:00
/*
* This example uses direct processing function,
* to process dummy NMEA data from GPS receiver
*/
#include <string.h>
#include <stdio.h>
#include <math.h>
#include "lwgps/lwgps.h"
/* External function */
extern void run_tests();
int
main() {
lwgps_float_t distance, bearing;
run_tests();
/* Calculate distance and bearing */
lwgps_distance_bearing(40.6, -73.7, 48.3, 11.7, &distance, &bearing);
printf("Distance: %lf meters\r\n", (double)distance);
printf("Bearing: %lf degrees\r\n", (double)bearing);
lwgps_distance_bearing(48.3, 11.7, 40.6, -73.7, &distance, &bearing);
printf("Distance: %lf meters\r\n", (double)distance);
printf("Bearing: %lf degrees\r\n", (double)bearing);
return 0;
}
/* JFK: 40.642569, -73.783790 */
/* Munich: 48.353962, 11.775114 */