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root/branch/sacco/sp4a12/main.c @ 231

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#include <stdio.h>
#include <stdlib.h>
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#include <strings.h>
#include <math.h>
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#include "trame.h"

//Trames de tests ? modifier si n?cessaire.
char * trames[]= {"$GPGSV,3,2,10,15,03,077,,18,04,041,42,19,85,271,,20,08,214,*7C",
"$GPGSV,3,3,10,22,39,053,50,28,15,320,*7E",
"$GPRMC,141914.00,A,4545.6424,N,00306.6036,E,0.4,99.4,010206,,*0C",
"$GPGLL,4545.6424,N,00306.6036,E,141914.00,A*0E",
"$GPGGA,141914.00,4545.0000,N,00306.6036,E,1,05,3.4,499.3,M,,M,,*7D",
"$GPGSA,A,3,,03,,22,14,,01,,18,,,,3.9,3.4,1.9*39",
"$GPVTG,99.4,T,,M,0.4,N,0.7,K*57",
"$GPZDA,141914.00,01,02,2006,00,00*69",
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0};
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//D?finition des structures
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typedef struct
{
float latitude;
float longitude;
} Position;
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typedef struct
{
Position rpos;
float vitmax;
}Zone;


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//Variables globales
float a =10;
float b = (float) 1;
float c = (float) 1/6;
float d = (float) 1/60;
float e = (float) 1/600;
float f = (float) 1/6000;
float g = (float) 1/60000;
float h = (float) 1/600000;
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Position pos_Mimizan ={44.208904, -1.297033};
Position pos_Evian = {46.401488, 6.59049};
Position pos_Angers = {47.478419, -0.563};
Position pos_Paris = {48.856614, 2.3522219};

Position pos_actuelle = {45.7833, 3.0833};

Zone zones[] = {{{44.208904, -1.297033},50}, {{47.478419, -0.563},70}, {{46.401488, 6.59049},50}, {{48.856614, 2.3522219},90}};
int nb_Zones = 4;


//Retourne un caract?re chiffr? en entier
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int decode_int(char c)
{
unsigned int ValDecimale;
ValDecimale = c-48;
if (ValDecimale>9 || ValDecimale<0)
{
return -1;
}
else
{
return ValDecimale;
}
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}
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//V?rification des trames "GPGGA"
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int trame_cmp(char* a,char* b){
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int i =0;
while (b[i]!='\0')
{
int c = a[i+1];
int d = b[i];
if (c!=d)
{
return 0;
}
i=i+1;
}
return 1;
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}

//Fonction ? modifier !!!!!
void traitement(char * trame)
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{
static int cpt =0;
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Position pos;
if (decode_trame(trame, &pos) ==1)
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{
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printf("%s\nLatitude: %f; Longitude: %f\n\n", trame, pos.latitude, pos.longitude);
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}
cpt++;
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}

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//Convertit un nombre ?crit en caract?re en d?cimale
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int decode_nombre( char *ch, int n) //A coder sans strlen
{
int i =0;
int Somme = 0;
if (n>strlen(ch))
{
n = strlen(ch);
}
for (i;i<=n-1;i++)
{
int Entiere = decode_int(ch[i]);
Somme =Somme + Entiere*pow(10,n-1-i);

}
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return(Somme);
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}
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//Convertit Latitude sexag?simale en d?cimale
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float conversion_Lat_sexa_dec(char coord[])
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{
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float Coeff_Ent[5] = {a,b,c,d};
float Coeff_Dec[4] = {e,f,g,h};
int i =0;
int k =0;
float nb_Convert=0;
int elem;
for (i=0; i< 9;i++)
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{
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if (i <= 3)
{
elem = decode_int(coord[i]);
nb_Convert = nb_Convert + (float) elem * Coeff_Ent[i];
}
else if (i>=5)
{
elem = decode_int(coord[i]);
nb_Convert = nb_Convert + (float) elem * Coeff_Dec[k];
k++;
}
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}
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return nb_Convert;

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}
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//Convertit Longitude sexag?simale en d?cimale
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float conversion_Long_sexa_dec(char coord[])
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{
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float Coeff_Ent[5] = {0,a,b,c,d};
float Coeff_Dec[4] = {e,f,g,h};
int i =0;
int k =0;
float nb_Convert=0;
int elem;
for (i=0; i< 10;i++)
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{
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if (i <= 4)
{
elem = decode_int(coord[i]);
nb_Convert = nb_Convert + (float) elem * Coeff_Ent[i];
}
else if (i>=6)
{
elem = decode_int(coord[i]);
nb_Convert = nb_Convert + (float) elem * Coeff_Dec[k];
k++;
}
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}
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return nb_Convert;
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}
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//Convertit indiff?remment une longitude / latitude
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float conversion(char * coord)
{
int i=0;
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Position P;
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while (coord[i]!='.')
{
i=i+1;
if (i>5)
{
return 0;
}
}
if (i==4)
{
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P.latitude = conversion_Lat_sexa_dec(coord);
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return P.latitude;
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}
else if (i==5)
{
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P.longitude = conversion_Long_sexa_dec(coord);
return P.longitude;
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}
else
{
return -1;
}
}
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int decode_trame( char *trame, Position *p)
{
if (trame_cmp(trame, "GPGGA"))
{
int nb_Virgule = 0;
int i =0;
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int k = 0;
int j =0;
char Lat[10];
char Long[12];
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int debut_Lat;
int debut_Long;

while (trame[i] !='\0')
{
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if (nb_Virgule ==2 && i!= 26)
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{
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Lat[k] = trame[i];
k++;
}
if (nb_Virgule ==4 && i!= 39)
{
Long[j] = trame[i];
j++;
}
if (trame[i] == ',')
{
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nb_Virgule += 1;
}
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i++;
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}
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p->latitude = conversion(Lat);
p->longitude = conversion(Long);
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return 1;
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}
else
{
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return 0;
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}
}
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float calcule_distance(Position p_1, Position p_2)
{
float rpt = 0.01745329251;
float distance;
float delta =p_1.longitude-p_2.longitude;
float dist = 6378.1*acos(sin(p_1.latitude*rpt)*sin(p_2.latitude*rpt)+ cos(p_1.latitude*rpt)*cos(p_2.latitude*rpt)*cos(delta*rpt));
return dist;
}
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float calcule_vitesse(Position p_1, Position p_2)
{
float vitesse;
float dist = calcule_distance(p_1,p_2);
vitesse = dist*3600;
}
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int distance_a_la_plus_proche_zone(Position p, Zone r[], int nb_zones, float *d)
{
if (nb_zones ==0)
{
return -1;
}
else
{
int i;
int curseur =0;
float distance_min = 10000;
float distance;
for (i=0;i<nb_zones; i++)
{
distance =calcule_distance(p, r[i].rpos);
if (distance <= distance_min)
{
distance_min = distance;
curseur = i;
}
}
*d = distance_min;
return curseur;
}

}
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//Ajouter vos tests unitaires dans cette fonction.
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void tests_unitaires(void){

//Tests unitaires basiques
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if (5!=5){
printf ("Erreur Test unitaire basique.\n");
exit(-1);
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}

//Tests unitaires de trame_cmp
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if (trame_cmp("$GPGGA suite chaine","GPGGA")!=1){
printf ("Erreur Test unitaire trame_cmp.\n");
exit(-1);
}
if (trame_cmp("$GPRMC suite chaine","GPGGA")!=0){
printf ("Erreur Test unitaire trame_cmp.\n");
exit(-1);
}
if (trame_cmp("$GPRMC... ", "GPRMC" )!=1){
printf ("Erreur Test unitaire trame_cmp.\n");
exit(-1);
}
if (trame_cmp("$APRMC...", "GPGGA")!=0){
printf ("Erreur Test unitaire trame_cmp.\n");
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exit(-1);
}
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if (conversion_Lat_sexa_dec("3723.2475")-(float) 37.387458>0.0001){
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printf("Erreur Test unitaire conversion_Latitude_sex_dec 1.\n");
exit(-1);
}
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//Tests unitaires de conversion Latitude et Longitude
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if (conversion_Lat_sexa_dec("0045.0000")-(float) 0.75>0.0001){
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printf("Erreur Test unitaire conversion_Latitude_sexa_dec.\n");
exit(-1);
}
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if (conversion_Long_sexa_dec("00306.6036")- (float)3.11006>0.0001){
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printf("Erreur Test unitaire conversion_Latitude_sexa_dec.\n");
exit(-1);
}
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if (conversion_Long_sexa_dec("00008.0015")-(float)0.133358>0.0001){
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printf("Erreur Test unitaire conversion_Latitude_sexa_dec.\n");
exit(-1);
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}
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//Tests unitaires de conversion
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if (conversion("3723.2475")-(float)37.387458>0.0001){
printf("Erreur Test unitaire conversion.\n");
exit(-1);
}
if (conversion("0045.0000")-(float)0.75>0.0001){
printf("Erreur Test unitaire conversion.\n");
exit(-1);
}
if (conversion("00306.6036")-(float)3.11006>0.0001){
printf("Erreur Test unitaire conversion.\n");
exit(-1);
}
if (conversion("00008.0015")-(float)0.133358>0.0001){
printf("Erreur Test unitaire conversion.\n");
exit(-1);
}
if (conversion("0.0")!=-1){
printf("Erreur test unitaire conversion.\n");
exit(-1);
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}
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//Test unitaires de decode_trame
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Position test;
if (decode_trame("$GPGSV,3,3,10,22,39,053,50,28,15,320,*7E", &test) != 0){
printf("Erreur test unitaire decode_trame.\n");
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exit(-1);
}
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if (decode_trame("$GPGGA,141914.00,4545.0000,N,00306.6036,E,1,05,3.4,499.3,M,,M,,*7D", &test)!=1){
printf("Erreur test unitaire decode_trame.\n");
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exit(-1);
}
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if (decode_trame("$GPGGA,141925.00,4545.2410,N,00306.6046,E,1,05,3.4,501.4,M,,M,,*7D", &test)!=1){
printf("Erreur test unitaire decode_trame.\n");
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exit(-1);
}
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if (decode_trame("$GPRMC,141920.00,A,4545.6419,N,00306.6039,E,0.2,133.1,010206,,*38", &test) != 0){
printf("Erreur test unitaire decode_trame.\n");
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exit(-1);
}
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//Tests unitaires de distance a la plus proche zone
float dist_min;
if (distance_a_la_plus_proche_zone(pos_actuelle, zones, nb_Zones, &dist_min) != 2){
printf("Erreur test unitaire distance_a_la_plus_proche_zone");
exit(-1);
}
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}

void test_decode_int(void)
{
if (decode_int('0')!=0){
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printf("Erreur test unitaire decode_int.\n");
}
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if (decode_int('1')!=1){
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printf("Erreur test unitaire decode_int.\n");
exit(-1);
}
if (decode_int('A')!=-1){
printf("Erreur test unitaire decode_int.\n");
exit(-1);
}

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}

// Ne pas modifier cette fonction
int main(int argc,char ** argv)
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{
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tests_unitaires();
test_decode_int();
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// Affichage des trames definies dans la table trames.
printf ("Trames de tests tableau trames:\n");
int i=0;
while (trames[i])
traitement(trames[i++]);

if (!trame_init())
exit(-1);
// Affichage des trames du fichier gps.log
char *trame;
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printf("Trames de tests du fichier gps.log\n");
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while ((trame = trame_suivante()))
traitement(trame);

return 0;
}