void* receptor(void* data)
{
boat* barco = (boat*) data;
char msg[256];
ais_state ais;
aismsg_1 msg_1; // Solo se contempla mensages de tipo 1.
long lat,lon;
double lat_dd, long_ddd;
float time;
while (1)
{
time = 0;
memset( &ais, 0, sizeof( ais_state ) );
pthread_mutex_lock(&lock);
if (list != NULL)
{
list = remove_message(list, msg);
pthread_mutex_unlock(&lock);
if (assemble_vdm( &ais, msg ) == 0)
{
ais.msgid = (unsigned char) get_6bit( &ais.six_state, 6 );
if( (ais.msgid == 1)&&(parse_ais_1( &ais, &msg_1 ) == 0) )
{
float dist = distancia(barco->cog, msg_1.cog, barco->sog, msg_1.sog, barco->latitude, barco->longitude, msg_1.latitude, msg_1.longitude);
lat = msg_1.latitude; lon = msg_1.longitude;
conv_pos(&lat, &lon);
pos2ddd( lat, lon, &lat_dd, &long_ddd );
printf("*****-----*****-----*****-----*****\n");
printf( "MESSAGE ID: %d\t", ais.msgid );
printf( "USER ID : %ld\n", msg_1.userid );
printf( "SOG : %d\t", msg_1.sog );
printf( "COG : %d\n", msg_1.cog );
printf( "POSITION : Lat %0.6f Lon %0.6f\n", lat_dd, long_ddd );
printf("MDCPA :%0.6f \n", dist);
}else printf("ERROR!!\nmsgid:%d msg:%s \n", ais.msgid, msg);
}
}
else
{
pthread_mutex_unlock(&lock);
printf("No hay mensages\n");
sleep(1);
time += 1;
}
usleep(100000); // 0.1 seg
time += 0.1;
boat_new_pos(barco, time);
}
}
int test_pos2ddd( void )
{
long latitude;
long longitude;
double lat_dd;
double long_ddd;
/* North East quadrant (+,+)
Trondheim, Norway 63.416277, 10.412227
*/
latitude = 38049766;
longitude = 6247336;
pos2ddd( latitude, longitude, &lat_dd, &long_ddd );
if ((lat_dd!=63.416276666666668) || (long_ddd!= 10.412226666666667))
{
fprintf( stderr, "test_pos2ddd() 1: failed\n");
return 0;
}
/* North West quadrant (+,-)
Lexington Green, USA 42.471021, -71.353514
*/
latitude = 25482612;
longitude = -42812108;
pos2ddd( latitude, longitude, &lat_dd, &long_ddd );
if ((lat_dd!=42.471020000000003) || (long_ddd!=-71.353513333333339))
{
fprintf( stderr, "test_pos2ddd() 2: failed\n");
return 0;
}
/* South East quadrant (-,+)
Tasmania -42.000951, 146.594319
*/
latitude = -25200570;
longitude = 87956591;
pos2ddd( latitude, longitude, &lat_dd, &long_ddd );
if ((lat_dd!=-42.000950000000003) || (long_ddd!=146.59431833333332))
{
fprintf( stderr, "test_pos2ddd() 3: failed\n");
return 0;
}
/* South West quadrant (-,-)
Bolivia -17.668295, -62.777665
*/
latitude = -10600977;
longitude = -37666599;
pos2ddd( latitude, longitude, &lat_dd, &long_ddd );
if ((lat_dd!=-17.668295000000001) || (long_ddd!=-62.777664999999999))
{
fprintf( stderr, "test_pos2ddd() 4: failed\n");
return 0;
}
/* Center */
latitude = 0;
longitude = 0;
pos2ddd( latitude, longitude, &lat_dd, &long_ddd );
if ((lat_dd!=0) || (long_ddd!=0))
{
fprintf( stderr, "test_pos2ddd() 5: failed\n");
return 0;
}
fprintf( stderr, "test_pos2ddd() Passed\n");
return 1;
}
int main( int argc, char *argv[] )
{
ais_state ais;
char buf[256];
/* AIS message structures, only parse ones with positions */
aismsg_1 msg_1;
aismsg_2 msg_2;
aismsg_3 msg_3;
aismsg_4 msg_4;
aismsg_9 msg_9;
aismsg_18 msg_18;
aismsg_19 msg_19;
/* Position in DD.DDDDDD */
double lat_dd;
double long_ddd;
long userid;
/* Clear out the structures */
memset( &ais, 0, sizeof( ais_state ) );
/* Output JSON structure header */
printf("<markers>\n");
/* Process incoming packets from stdin */
while( !feof(stdin) )
{
if (fgets( buf, 255, stdin ) == NULL ) break;
if (assemble_vdm( &ais, buf ) == 0)
{
/* Get the 6 bit message id */
ais.msgid = (unsigned char) get_6bit( &ais.six_state, 6 );
/* process message with appropriate parser */
switch( ais.msgid ) {
case 1:
if( parse_ais_1( &ais, &msg_1 ) == 0 )
{
userid = msg_1.userid;
pos2ddd( msg_1.latitude, msg_1.longitude, &lat_dd, &long_ddd );
}
break;
case 2:
if( parse_ais_2( &ais, &msg_2 ) == 0 )
{
userid = msg_2.userid;
pos2ddd( msg_2.latitude, msg_2.longitude, &lat_dd, &long_ddd );
}
break;
case 3:
if( parse_ais_3( &ais, &msg_3 ) == 0 )
{
userid = msg_3.userid;
pos2ddd( msg_3.latitude, msg_3.longitude, &lat_dd, &long_ddd );
}
break;
case 4:
if( parse_ais_4( &ais, &msg_4 ) == 0 )
{
userid = msg_4.userid;
pos2ddd( msg_4.latitude, msg_4.longitude, &lat_dd, &long_ddd );
}
break;
case 9:
if( parse_ais_9( &ais, &msg_9 ) == 0 )
{
userid = msg_9.userid;
pos2ddd( msg_9.latitude, msg_9.longitude, &lat_dd, &long_ddd );
}
break;
case 18:
if( parse_ais_18( &ais, &msg_18 ) == 0 )
{
userid = msg_18.userid;
pos2ddd( msg_18.latitude, msg_18.longitude, &lat_dd, &long_ddd );
}
break;
case 19:
if( parse_ais_19( &ais, &msg_19 ) == 0 )
{
userid = msg_19.userid;
pos2ddd( msg_19.latitude, msg_19.longitude, &lat_dd, &long_ddd );
}
break;
} /* switch msgid */
printf( " <marker lat=\"%0.6f\" lng=\"%0.6f\" />\n", lat_dd, long_ddd );
} /* if */
} /* while */
/* Output JSON footer */
printf("</markers>\n");
return 0;
}