minmea/example.c

72 lines
3.6 KiB
C

/*
* Copyright © 2014 Kosma Moczek <kosma@cloudyourcar.com>
* This program is free software. It comes without any warranty, to the extent
* permitted by applicable law. You can redistribute it and/or modify it under
* the terms of the Do What The Fuck You Want To Public License, Version 2, as
* published by Sam Hocevar. See the COPYING file for more details.
*/
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include "minmea.h"
int main()
{
char line[MINMEA_MAX_LENGTH];
while (fgets(line, sizeof(line), stdin) != NULL) {
printf("%s", line);
switch (minmea_sentence_id(line)) {
case MINMEA_SENTENCE_RMC: {
struct minmea_sentence_rmc frame;
if (minmea_parse_rmc(&frame, line)) {
printf("+++ raw coordinates and speed: (%d/%d,%d/%d) %d/%d\n",
frame.latitude, frame.latitude_scale,
frame.longitude, frame.longitude_scale,
frame.speed, frame.speed_scale);
printf("+++ fixed-point coordinates and speed scaled to three decimal places: (%d,%d) %d\n",
minmea_rescale(frame.latitude, frame.latitude_scale, 1000),
minmea_rescale(frame.longitude, frame.longitude_scale, 1000),
minmea_rescale(frame.speed, frame.speed_scale, 1000));
printf("+++ floating point degree coordinates and speed: (%f,%f) %f\n",
minmea_coord(frame.latitude, frame.latitude_scale),
minmea_coord(frame.longitude, frame.longitude_scale),
minmea_float(frame.speed, frame.speed_scale));
}
} break;
case MINMEA_SENTENCE_GGA: {
struct minmea_sentence_gga frame;
if (minmea_parse_gga(&frame, line)) {
printf("$GPGGA: fix quality: %d\n", frame.fix_quality);
}
} break;
case MINMEA_SENTENCE_GST: {
struct minmea_sentence_gst frame;
if (minmea_parse_gst(&frame, line)) {
printf("+++ raw lattitude,longitude and altitude error deviation: (%d/%d,%d/%d,%d/d)\n",
frame.lattitude_error_deviation, frame.lattitude_error_deviation_scale,
frame.longitude_error_deviation, frame.longitude_error_deviation_scale,
frame.altitude_error_deviation, frame.altitude_error_deviation_scale);
printf("+++ fixed point lattitude,longitude and altitude error deviation \
scaled to three decimal places: (%d,%d,%d)\n",
minmea_rescale(frame.lattitude_error_deviation, frame.lattitude_error_deviation_scale,1000),
minmea_rescale(frame.longitude_error_deviation, frame.longitude_error_deviation_scale,1000),
minmea_rescale(frame.altitude_error_deviation, frame.altitude_error_deviation_scale,1000));
printf("+++ floating point degree lattitude,longitude and altitude error deviation: (%f,%f,%f)",
minmea_coord(frame.lattitude_error_deviation, frame.lattitude_error_deviation_scale),
minmea_coord(frame.longitude_error_deviation, frame.longitude_error_deviation_scale),
minmea_coord(frame.altitude_error_deviation, frame.altitude_error_deviation_scale));
}
} break;
default: {
} break;
}
}
return 0;
}
/* vim: set ts=4 sw=4 et: */