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example.c
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example.c
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/*
* 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"
#define INDENT_SPACES " "
int main(void)
{
char line[MINMEA_MAX_LENGTH];
while (fgets(line, sizeof(line), stdin) != NULL) {
printf("%s", line);
switch (minmea_sentence_id(line, false)) {
case MINMEA_SENTENCE_RMC: {
struct minmea_sentence_rmc frame;
if (minmea_parse_rmc(&frame, line)) {
printf(INDENT_SPACES "$xxRMC: raw coordinates and speed: (%d/%d,%d/%d) %d/%d\n",
frame.latitude.value, frame.latitude.scale,
frame.longitude.value, frame.longitude.scale,
frame.speed.value, frame.speed.scale);
printf(INDENT_SPACES "$xxRMC fixed-point coordinates and speed scaled to three decimal places: (%d,%d) %d\n",
minmea_rescale(&frame.latitude, 1000),
minmea_rescale(&frame.longitude, 1000),
minmea_rescale(&frame.speed, 1000));
printf(INDENT_SPACES "$xxRMC floating point degree coordinates and speed: (%f,%f) %f\n",
minmea_tocoord(&frame.latitude),
minmea_tocoord(&frame.longitude),
minmea_tofloat(&frame.speed));
}
else {
printf(INDENT_SPACES "$xxRMC sentence is not parsed\n");
}
} break;
case MINMEA_SENTENCE_GGA: {
struct minmea_sentence_gga frame;
if (minmea_parse_gga(&frame, line)) {
printf(INDENT_SPACES "$xxGGA: fix quality: %d\n", frame.fix_quality);
}
else {
printf(INDENT_SPACES "$xxGGA sentence is not parsed\n");
}
} break;
case MINMEA_SENTENCE_GST: {
struct minmea_sentence_gst frame;
if (minmea_parse_gst(&frame, line)) {
printf(INDENT_SPACES "$xxGST: raw latitude,longitude and altitude error deviation: (%d/%d,%d/%d,%d/%d)\n",
frame.latitude_error_deviation.value, frame.latitude_error_deviation.scale,
frame.longitude_error_deviation.value, frame.longitude_error_deviation.scale,
frame.altitude_error_deviation.value, frame.altitude_error_deviation.scale);
printf(INDENT_SPACES "$xxGST fixed point latitude,longitude and altitude error deviation"
" scaled to one decimal place: (%d,%d,%d)\n",
minmea_rescale(&frame.latitude_error_deviation, 10),
minmea_rescale(&frame.longitude_error_deviation, 10),
minmea_rescale(&frame.altitude_error_deviation, 10));
printf(INDENT_SPACES "$xxGST floating point degree latitude, longitude and altitude error deviation: (%f,%f,%f)",
minmea_tofloat(&frame.latitude_error_deviation),
minmea_tofloat(&frame.longitude_error_deviation),
minmea_tofloat(&frame.altitude_error_deviation));
}
else {
printf(INDENT_SPACES "$xxGST sentence is not parsed\n");
}
} break;
case MINMEA_SENTENCE_GSV: {
struct minmea_sentence_gsv frame;
if (minmea_parse_gsv(&frame, line)) {
printf(INDENT_SPACES "$xxGSV: message %d of %d\n", frame.msg_nr, frame.total_msgs);
printf(INDENT_SPACES "$xxGSV: sattelites in view: %d\n", frame.total_sats);
for (int i = 0; i < 4; i++)
printf(INDENT_SPACES "$xxGSV: sat nr %d, elevation: %d, azimuth: %d, snr: %d dbm\n",
frame.sats[i].nr,
frame.sats[i].elevation,
frame.sats[i].azimuth,
frame.sats[i].snr);
}
else {
printf(INDENT_SPACES "$xxGSV sentence is not parsed\n");
}
} break;
case MINMEA_SENTENCE_VTG: {
struct minmea_sentence_vtg frame;
if (minmea_parse_vtg(&frame, line)) {
printf(INDENT_SPACES "$xxVTG: true track degrees = %f\n",
minmea_tofloat(&frame.true_track_degrees));
printf(INDENT_SPACES " magnetic track degrees = %f\n",
minmea_tofloat(&frame.magnetic_track_degrees));
printf(INDENT_SPACES " speed knots = %f\n",
minmea_tofloat(&frame.speed_knots));
printf(INDENT_SPACES " speed kph = %f\n",
minmea_tofloat(&frame.speed_kph));
}
else {
printf(INDENT_SPACES "$xxVTG sentence is not parsed\n");
}
} break;
case MINMEA_SENTENCE_ZDA: {
struct minmea_sentence_zda frame;
if (minmea_parse_zda(&frame, line)) {
printf(INDENT_SPACES "$xxZDA: %d:%d:%d %02d.%02d.%d UTC%+03d:%02d\n",
frame.time.hours,
frame.time.minutes,
frame.time.seconds,
frame.date.day,
frame.date.month,
frame.date.year,
frame.hour_offset,
frame.minute_offset);
}
else {
printf(INDENT_SPACES "$xxZDA sentence is not parsed\n");
}
} break;
case MINMEA_INVALID: {
printf(INDENT_SPACES "$xxxxx sentence is not valid\n");
} break;
default: {
printf(INDENT_SPACES "$xxxxx sentence is not parsed\n");
} break;
}
}
return 0;
}
/* vim: set ts=4 sw=4 et: */