//
// This file is in the Public Domain and comes with no warranty.
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
#include <simgear/compiler.h>
#include <simgear/math/sg_geodesy.hxx>
#include <simgear/math/sg_random.h>
#include <Main/fg_props.hxx>
#include <Navaids/navlist.hxx>
+#include <vector>
#include "tacan.hxx"
+SG_USING_STD(vector);
+
/**
* Adjust the range.
_transmitter_elevation_ft(0),
_transmitter_range_nm(0),
_transmitter_bias(0.0),
-
+
name("tacan"),
num(0)
{
-
+
int i;
for ( i = 0; i < node->nChildren(); ++i ) {
SGPropertyNode *child = node->getChild(i);
_time_node = node->getChild("indicated-time-min", 0, true);
_name_node = node->getChild("name", 0, true);
_bearing_node = node->getChild("indicated-bearing-true-deg", 0, true);
- _carrier_lat_node = fgGetNode("/ai/models/carrier/position/latitude-deg", true);
- _carrier_lon_node = fgGetNode("/ai/models/carrier/position/longitude-deg", true);
- _carrier_name_node = fgGetNode("/ai/models/carrier/name", true);
-
+ SGPropertyNode *cnode = fgGetNode("/ai/models/carrier", num, true );
+ _carrier_name_node = cnode->getChild("name", 0, true);
+
}
void
TACAN::update (double delta_time_sec)
-{
- double az2 = 0;
+{
+ double az2 = 0;
double bearing = 0;
- double distance = 0;
- double carrier_az2= 0;
- double carrier_bearing = 0;
+ double distance = 0;
+ double carrier_az2= 0;
+ double carrier_bearing = 0;
double carrier_distance = 0;
double frequency_mhz = 0;
string _channel, _last_channel, _channel_1, _channel_2,_channel_3, _channel_4;
- // If it's off, don't waste any time.
- if (!_serviceable_node->getBoolValue() ||
- !_electrical_node->getBoolValue()
- ) {
- _last_distance_nm = 0;
- _in_range_node->setBoolValue(false);
- _distance_node->setDoubleValue(0);
- _speed_node->setDoubleValue(0);
- _time_node->setDoubleValue(0);
- SG_LOG( SG_INSTR, SG_DEBUG, "skip tacan " );
- return;
- }else{
- //SG_LOG( SG_INSTR, SG_DEBUG, "run tacan " );
- }
-
+ // If it's off, don't waste any time.
+ if (!_serviceable_node->getBoolValue() || !_electrical_node->getBoolValue()) {
+ _last_distance_nm = 0;
+ _in_range_node->setBoolValue(false);
+ _distance_node->setDoubleValue(0);
+ _speed_node->setDoubleValue(0);
+ _time_node->setDoubleValue(0);
+ SG_LOG( SG_INSTR, SG_DEBUG, "skip tacan" );
+ return;
+ }
+
// Figure out the source
const char * source = _source_node->getStringValue();
-
+
if (source[0] == '\0') {
string branch;
branch = "/instrumentation/" + name + "/frequencies/selected-channel";
- // branch = "/instrumentation/" + _name + "/frequencies/selected-mhz";
_source_node->setStringValue(branch.c_str());
source = _source_node->getStringValue();
- SG_LOG( SG_INSTR, SG_DEBUG, "source " << source );
+ SG_LOG( SG_INSTR, SG_DEBUG, "source " << source );
}
- // Get the channel
+ // Get the channel
_channel_1 = fgGetString("/instrumentation/tacan/frequencies/selected-channel[1]");
_channel_2 = fgGetString("/instrumentation/tacan/frequencies/selected-channel[2]");
_channel_3 = fgGetString("/instrumentation/tacan/frequencies/selected-channel[3]");
SG_LOG( SG_INSTR, SG_DEBUG, "channels " << _channel_1 << _channel_2 << _channel_3 << _channel_4);
_channel = _channel_1 + _channel_2 + _channel_3 + _channel_4;
SG_LOG( SG_INSTR, SG_DEBUG, "channel " << _channel );
-
+
// Get the frequecncy
if (_channel != _last_channel) {
_time_before_search_sec = 0;
frequency_mhz = searchChannel(_channel);
SG_LOG( SG_INSTR, SG_DEBUG, "frequency " << frequency_mhz );
_frequency_node->setDoubleValue(frequency_mhz);
- }
-
+ }
+
// Get the aircraft position
- double longitude_deg = _longitude_node->getDoubleValue();
- double latitude_deg = _latitude_node->getDoubleValue();
- double altitude_m = _altitude_node->getDoubleValue() * SG_FEET_TO_METER;
- double longitude_rad = longitude_deg * SGD_DEGREES_TO_RADIANS;
- double latitude_rad = latitude_deg * SGD_DEGREES_TO_RADIANS;
-
+ double longitude_deg = _longitude_node->getDoubleValue();
+ double latitude_deg = _latitude_node->getDoubleValue();
+ double altitude_m = _altitude_node->getDoubleValue() * SG_FEET_TO_METER;
+ double longitude_rad = longitude_deg * SGD_DEGREES_TO_RADIANS;
+ double latitude_rad = latitude_deg * SGD_DEGREES_TO_RADIANS;
+
// On timeout, scan again
_time_before_search_sec -= delta_time_sec;
if (_time_before_search_sec < 0 && frequency_mhz > 0)
- search(frequency_mhz, longitude_rad,
- latitude_rad, altitude_m);
+ search(frequency_mhz, longitude_rad, latitude_rad, altitude_m);
// Calculate the distance to the transmitter
-
- //calculate the bearing and range of the carrier from the aircraft
- SG_LOG( SG_INSTR, SG_DEBUG, "carrier_lat " << _carrier_lat);
- SG_LOG( SG_INSTR, SG_DEBUG, "carrier_lon " << _carrier_lon);
- SG_LOG( SG_INSTR, SG_DEBUG, "carrier_name " << _carrier_name);
- SG_LOG( SG_INSTR, SG_DEBUG, "carrier_valid " << _carrier_valid);
- geo_inverse_wgs_84(altitude_m,
- latitude_deg,
- longitude_deg,
- _carrier_lat,
- _carrier_lon,
- &carrier_bearing, &carrier_az2, &carrier_distance);
-
-
- //calculate the bearing and range of the station from the aircraft
- geo_inverse_wgs_84(altitude_m,
- latitude_deg,
- longitude_deg,
- _transmitter_lat,
- _transmitter_lon,
- &bearing, &az2, &distance);
-
-
- //select the nearer
- if ( carrier_distance <= distance && _carrier_valid) {
- SG_LOG( SG_INSTR, SG_DEBUG, "carrier_distance_nm " << carrier_distance);
- SG_LOG( SG_INSTR, SG_DEBUG, "distance_nm " << distance);
- bearing = carrier_bearing;
- distance = carrier_distance;
- _transmitter_elevation_ft = _carrier_elevation_ft;
- _transmitter_range_nm = _carrier_range_nm;
- _transmitter_bias = _carrier_bias;
- _transmitter_name = _carrier_name;
- _name_node->setStringValue(_transmitter_name.c_str());
- }
-
- double distance_nm = distance * SG_METER_TO_NM;
- SG_LOG( SG_INSTR, SG_DEBUG, "distance_nm " << distance_nm << " bearing " << bearing);
+
+ //calculate the bearing and range of the carrier from the aircraft
+ SG_LOG( SG_INSTR, SG_DEBUG, "carrier_lat " << _carrier_lat);
+ SG_LOG( SG_INSTR, SG_DEBUG, "carrier_lon " << _carrier_lon);
+ SG_LOG( SG_INSTR, SG_DEBUG, "carrier_name " << _carrier_name);
+ SG_LOG( SG_INSTR, SG_DEBUG, "carrier_valid " << _carrier_valid);
+ geo_inverse_wgs_84(altitude_m,
+ latitude_deg,
+ longitude_deg,
+ _carrier_lat,
+ _carrier_lon,
+ &carrier_bearing, &carrier_az2, &carrier_distance);
+
+
+ //calculate the bearing and range of the station from the aircraft
+ geo_inverse_wgs_84(altitude_m,
+ latitude_deg,
+ longitude_deg,
+ _transmitter_lat,
+ _transmitter_lon,
+ &bearing, &az2, &distance);
+
+
+ //select the nearer
+ if ( carrier_distance <= distance && _carrier_valid) {
+ SG_LOG( SG_INSTR, SG_DEBUG, "carrier_distance_nm " << carrier_distance);
+ SG_LOG( SG_INSTR, SG_DEBUG, "distance_nm " << distance);
+ bearing = carrier_bearing;
+ distance = carrier_distance;
+ _transmitter_elevation_ft = _carrier_elevation_ft;
+ _transmitter_range_nm = _carrier_range_nm;
+ _transmitter_bias = _carrier_bias;
+ _transmitter_name = _carrier_name;
+ _name_node->setStringValue(_transmitter_name.c_str());
+ }
+
+ double distance_nm = distance * SG_METER_TO_NM;
+ SG_LOG( SG_INSTR, SG_DEBUG, "distance_nm " << distance_nm << " bearing " << bearing);
/*Point3D location =
sgGeodToCart(Point3D(longitude_rad, latitude_rad, altitude_m));
_speed_node->setDoubleValue(speed_kt);
_time_node->setDoubleValue(distance_nm/speed_kt*60.0);
_bearing_node->setDoubleValue(bearing);
-
+
} else {
_last_distance_nm = 0;
_in_range_node->setBoolValue(false);
_time_node->setDoubleValue(0);
_bearing_node->setDoubleValue(0);
}
-
+
// If we can't find a valid station set everything to zero
- if (!_transmitter_valid && !_carrier_valid)
- {
+ if (!_transmitter_valid && !_carrier_valid) {
_in_range_node->setBoolValue(false);
_distance_node->setDoubleValue(0);
_speed_node->setDoubleValue(0);
void
TACAN::search (double frequency_mhz, double longitude_rad,
- double latitude_rad, double altitude_m)
-{
-
+ double latitude_rad, double altitude_m)
+{
+
SG_LOG( SG_INSTR, SG_DEBUG, "tacan freq " << frequency_mhz );
-
+
// reset search time
_time_before_search_sec = 1.0;
-
+
//try any carriers first
FGNavRecord *carrier_tacan
= globals->get_carrierlist()->findStationByFreq( frequency_mhz );
if ( _carrier_valid ) {
SG_LOG( SG_INSTR, SG_DEBUG, "carrier transmitter valid " << _carrier_valid );
-
+
string str1( carrier_tacan->get_name() );
- string str2 ( _carrier_name_node->getStringValue());
- SG_LOG( SG_INSTR, SG_DEBUG, "strings 1 " << str1 << " 2 " << str2 );
- unsigned int loc1= str1.find( str2, 0 );
- if( loc1 != string::npos && str2 != "" ){
- SG_LOG( SG_INSTR, SG_DEBUG, " string found" );
- _carrier_lat = _carrier_lat_node->getDoubleValue();
- _carrier_lon = _carrier_lon_node->getDoubleValue();
- _carrier_elevation_ft = carrier_tacan->get_elev_ft();
- _carrier_range_nm = carrier_tacan->get_range();
- _carrier_bias = carrier_tacan->get_multiuse();
- _carrier_name = carrier_tacan->get_name();
- }
- else{
- _carrier_valid = 0;
- SG_LOG( SG_INSTR, SG_DEBUG, " carrier transmitter invalid " << _carrier_valid );
- }
-
-
- //_name_node->setStringValue(_transmitter_name.c_str());
-
+
+ SGPropertyNode * branch = fgGetNode("ai/models", true);
+ vector<SGPropertyNode_ptr> carrier = branch->getChildren("carrier");
+
+ int number = carrier.size();
+
+ SG_LOG( SG_INSTR, SG_DEBUG, "carrier " << number );
+
+ int i;
+ for ( i = 0; i < number; ++i ) {
+ string str2 ( carrier[i]->getStringValue("name", ""));
+ // SG_LOG( SG_INSTR, SG_DEBUG, "carrier name " << str2 );
+
+ SG_LOG( SG_INSTR, SG_DEBUG, "strings 1 " << str1 << " 2 " << str2 );
+ unsigned int loc1= str1.find( str2, 0 );
+ if ( loc1 != string::npos && str2 != "" ) {
+ SG_LOG( SG_INSTR, SG_DEBUG, " string found" );
+ _carrier_lat = carrier[i]->getDoubleValue("position/latitude-deg");
+ _carrier_lon = carrier[i]->getDoubleValue("position/longitude-deg");
+ _carrier_elevation_ft = carrier_tacan->get_elev_ft();
+ _carrier_range_nm = carrier_tacan->get_range();
+ _carrier_bias = carrier_tacan->get_multiuse();
+ _carrier_name = carrier_tacan->get_name();
+ _carrier_valid = 1;
+ SG_LOG( SG_INSTR, SG_DEBUG, " carrier transmitter valid " << _carrier_valid );
+ break;
+ } else {
+ _carrier_valid = 0;
+ SG_LOG( SG_INSTR, SG_DEBUG, " carrier transmitter invalid " << _carrier_valid );
+ }
+ }
+
+ SG_LOG( SG_INSTR, SG_DEBUG, "name " << _carrier_name);
SG_LOG( SG_INSTR, SG_DEBUG, "lat " << _carrier_lat << "lon " << _carrier_lon);
SG_LOG( SG_INSTR, SG_DEBUG, "elev " << _carrier_elevation_ft);
- SG_LOG( SG_INSTR, SG_DEBUG, "name " << _carrier_name);
-
+
} else {
- SG_LOG( SG_INSTR, SG_DEBUG, " carrier transmitter invalid " << _carrier_valid );
- }
-
+ SG_LOG( SG_INSTR, SG_DEBUG, " carrier transmitter invalid " << _carrier_valid );
+ }
+
// try the TACAN/VORTAC list next
FGNavRecord *tacan
= globals->get_tacanlist()->findByFreq( frequency_mhz, longitude_rad,
- latitude_rad, altitude_m);
+ latitude_rad, altitude_m);
_transmitter_valid = (tacan != NULL);
if ( _transmitter_valid ) {
SG_LOG( SG_INSTR, SG_DEBUG, "transmitter valid " << _transmitter_valid );
-
+
_transmitter_lat = tacan->get_lat();
_transmitter_lon = tacan->get_lon();
_transmitter_elevation_ft = tacan->get_elev_ft();
_transmitter_bias = tacan->get_multiuse();
_transmitter_name = tacan->get_name();
_name_node->setStringValue(_transmitter_name.c_str());
-
+
+ SG_LOG( SG_INSTR, SG_DEBUG, "name " << _transmitter_name);
SG_LOG( SG_INSTR, SG_DEBUG, "lat " << _transmitter_lat << "lon " << _transmitter_lon);
SG_LOG( SG_INSTR, SG_DEBUG, "elev " << _transmitter_elevation_ft);
- SG_LOG( SG_INSTR, SG_DEBUG, "name " << _transmitter_name);
-
+
} else {
- SG_LOG( SG_INSTR, SG_DEBUG, "transmitter invalid " << _transmitter_valid );
- }
-
+ SG_LOG( SG_INSTR, SG_DEBUG, "transmitter invalid " << _transmitter_valid );
+ }
}
double
TACAN::searchChannel (const string& _channel){
-
+
double frequency_khz = 0;
-
+
FGTACANRecord *freq
= globals->get_channellist()->findByChannel( _channel );
- double _freq_valid = (freq != NULL);
+ double _freq_valid = (freq != NULL);
SG_LOG( SG_INSTR, SG_DEBUG, "freq valid " << _freq_valid );
if ( _freq_valid ) {
frequency_khz = freq->get_freq();
SG_LOG( SG_INSTR, SG_DEBUG, "freq output " << frequency_khz );
//check sanity
- if (frequency_khz >9620 && frequency_khz <= 12130)return frequency_khz/100;
+ if (frequency_khz >=9620 && frequency_khz <= 12130)
+ return frequency_khz/100;
}
return frequency_khz = 0;
} // end TACAN::searchChannel
-
+
// end of TACAN.cxx
projects / flightgear.git / blobdiff