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#include <stdio.h>
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#include <stdlib.h>
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#include <strings.h>
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#include <math.h>
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#include "trame.h"
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typedef struct{
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float latitude;
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float longitude;
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} Position;
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//Trames de tests ? modifier si n?cessaire.
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char * trames[]= {"$GPGSV,3,2,10,15,03,077,,18,04,041,42,19,85,271,,20,08,214,*7C",
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"$GPGSV,3,3,10,22,39,053,50,28,15,320,*7E",
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"$GPRMC,141914.00,A,4545.6424,N,00306.6036,E,0.4,99.4,010206,,*0C",
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"$GPGLL,4545.6424,N,00306.6036,E,141914.00,A*0E",
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"$GPGGA,141914.00,4545.0000,N,00306.6036,E,1,05,3.4,499.3,M,,M,,*7D",
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"$GPGSA,A,3,,03,,22,14,,01,,18,,,,3.9,3.4,1.9*39",
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"$GPVTG,99.4,T,,M,0.4,N,0.7,K*57",
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"$GPZDA,141914.00,01,02,2006,00,00*69",
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0};
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int trame_cmp(char* trame,char* type){
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int i = 1;
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int res = 1;
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while ((res == 1) && (type[i-1] != '\0')){
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if (trame[i] != type[i-1]){
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res = 0;
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}
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i++;
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}
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return res;
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}
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int decode_int(char c){
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int val = c - '0';
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if (val<0 || val>9){
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val = -1;
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}
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return val;
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}
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int decode_nombre(char * ch, int n){
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int i;
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int res = 0;
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for(i=0; i<n; i++){
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res *= 10;
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res += decode_int(ch[i]);
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}
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return res;
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}
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float conv_lat(char *ch){
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float res = 0;
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int i;
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float val_sexa = decode_nombre(ch,4);
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for (i=5; i<9; i++){
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val_sexa += (decode_int(ch[i]))*pow(10,-i+4);
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}
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res = (int)(val_sexa/100);
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res = res + (val_sexa - res*100)/60;
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return res;
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}
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float conv_long(char *ch){
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float res = 0;
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int i;
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float val_sexa = decode_nombre(ch,5);
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for (i=6; i<10; i++){
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val_sexa += (decode_int(ch[i]))*pow(10,-i+5);
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}
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res = (int)(val_sexa/100);
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res = res + (val_sexa - res*100)/60;
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return res;
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}
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float conversion(char *ch){
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int i = 0;
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float res = 0;
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while (ch[i] != '\0'){
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i++;
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}
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if (i == 9){
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res = conv_lat(ch);
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}
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else if (i == 10){
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res = conv_long(ch);
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}
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else{res = 1000.0;}
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return res;
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}
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void decode_trame(char *trame, Position *p){
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if (trame_cmp(trame,"GPGGA")==1){
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char latitude[10];
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char longitude[10];
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int pos = 0;
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int i;
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int j = 0;
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int k = 0;
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for (i=0; i<40; i++){
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if (trame[i] == ','){
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pos ++;
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}
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if (pos == 2){
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latitude[j] = trame[i];
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j ++;
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}
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p->latitude = conversion(latitude);
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if (pos == 4){
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longitude[k] = trame[i];
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k ++;
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}
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p->longitude = conversion(longitude);
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}
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}
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return 0;
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}
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//Fonction ? modifier !!!!!
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void traitement(char * trame){
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printf ("> %s\n",trame);
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}
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//Ajouter vos tests unitaires dans cette fonction.
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void tests_unitaires(void){
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if (5!=5){
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printf ("Erreur Test unitaire basique.\n");
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exit(-1);
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}
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if (trame_cmp("$GPGGA suite chaine","GPGGA")!=1){
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printf ("Erreur Test unitaire trame_cmp.\n");
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exit(-1);
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}
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if (trame_cmp("$GPRMC suite chaine","GPGGA")!=0){
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printf ("Erreur Test unitaire trame_cmp.\n");
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exit(-1);
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}
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if (trame_cmp("$GPRMC... ", "GPRMC" )!=1){
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printf ("Erreur Test unitaire trame_cmp.\n");
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exit(-1);
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}
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if (trame_cmp("$APRMC...", "GPGGA")!=0){
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printf ("Erreur Test unitaire trame_cmp.\n");
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exit(-1);
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}
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if (decode_int('0')!=0){
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printf ("Erreur Test unitaire decode_int.\n");
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exit(-1);
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}
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if (decode_int('7')!=7){
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printf ("Erreur Test unitaire decode_int.\n");
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exit(-1);
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}
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if (decode_int('A')!=-1){
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printf ("Erreur Test unitaire decode_int.\n");
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exit(-1);
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}
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if (decode_nombre("123",3)!=123){
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printf ("Erreur Test unitaire decode_nombre.\n");
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exit(-1);
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}
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if (decode_nombre("7541",2)!=75){
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printf ("Erreur Test unitaire decode_nombre.\n");
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exit(-1);
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}
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if (fabs(conv_lat("3723.2475")-37.387458) >= pow(10,-6)){
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printf ("Erreur Test unitaire conv_lat.\n");
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exit(-1);
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}
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if (fabs(conv_long("00306.6036")-3.11006) >= pow(10,-6)){
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printf ("Erreur Test unitaire conv_long.\n");
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exit(-1);
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}
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if (fabs(conversion("3723.2475")-37.387458) >= pow(10,-6)){
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printf ("Erreur Test unitaire conversion.\n");
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exit(-1);
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}
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if (fabs(conversion("00306.6036")-3.11006) >= pow(10,-6)){
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printf ("Erreur Test unitaire conversion.\n");
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exit(-1);
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}
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}
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// conv_lat(latitude)Ne pas modifier cette fonction
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int main(int argc,char ** argv)
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{
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tests_unitaires();
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// Affichage des trames definies dans la table trames.
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printf ("Trames de tests tableau trames:\n");
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int i=0;
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while (trames[i])
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traitement(trames[i++]);
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if (!trame_init())
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exit(-1);
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// Affichage des trames du fichier gps.log
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char *trame;
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printf ("Trames de tests du fichier gps.log\n");
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while ((trame = trame_suivante()))
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traitement(trame);
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return 0;
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}
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