* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
**************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
#include "AIFlightPlan.hxx"
#include <simgear/math/sg_geodesy.hxx>
+#include <simgear/props/props.hxx>
+#include <simgear/props/props_io.hxx>
+
+#include <Airports/simple.hxx>
#include <Airports/runways.hxx>
+#include <Airports/dynamics.hxx>
+#include "AIAircraft.hxx"
+#include "performancedata.hxx"
#include <Environment/environment_mgr.hxx>
#include <Environment/environment.hxx>
*
* This is the top-level function, and the only one that is publicly available.
*
- */
+ */
// Check lat/lon values during initialization;
-void FGAIFlightPlan::create(FGAirport *dep, FGAirport *arr, int legNr,
- double alt, double speed, double latitude,
- double longitude, bool firstFlight,double radius,
- const string& fltType, const string& aircraftType,
- const string& airline)
-{
- int currWpt = wpt_iterator - waypoints.begin();
- switch(legNr)
- {
+void FGAIFlightPlan::create(FGAIAircraft * ac, FGAirport * dep,
+ FGAirport * arr, int legNr, double alt,
+ double speed, double latitude,
+ double longitude, bool firstFlight,
+ double radius, const string & fltType,
+ const string & aircraftType,
+ const string & airline, double distance)
+{
+ int currWpt = wpt_iterator - waypoints.begin();
+ switch (legNr) {
case 1:
- createPushBack(firstFlight,dep, latitude, longitude,
- radius, fltType, aircraftType, airline);
- break;
- case 2:
- createTaxi(firstFlight, 1, dep, latitude, longitude,
- radius, fltType, aircraftType, airline);
- break;
- case 3:
- createTakeOff(firstFlight, dep, speed);
- break;
- case 4:
- createClimb(firstFlight, dep, speed, alt);
- break;
- case 5:
- createCruise(firstFlight, dep,arr, latitude, longitude, speed, alt);
- break;
- case 6:
- createDecent(arr);
- break;
- case 7:
- createLanding(arr);
- break;
- case 8:
- createTaxi(false, 2, arr, latitude, longitude, radius,
- fltType, aircraftType, airline);
- break;
- case 9:
- createParking(arr, radius);
- break;
+ createPushBack(ac, firstFlight, dep, latitude, longitude,
+ radius, fltType, aircraftType, airline);
+ break;
+ case 2:
+ createTakeoffTaxi(ac, firstFlight, dep, radius, fltType,
+ aircraftType, airline);
+ break;
+ case 3:
+ createTakeOff(ac, firstFlight, dep, speed, fltType);
+ break;
+ case 4:
+ createClimb(ac, firstFlight, dep, speed, alt, fltType);
+ break;
+ case 5:
+ createCruise(ac, firstFlight, dep, arr, latitude, longitude, speed,
+ alt, fltType);
+ break;
+ case 6:
+ createDescent(ac, arr, latitude, longitude, speed, alt, fltType,
+ distance);
+ break;
+ case 7:
+ createLanding(ac, arr, fltType);
+ break;
+ case 8:
+ createLandingTaxi(ac, arr, radius, fltType, aircraftType, airline);
+ break;
+ case 9:
+ createParking(ac, arr, radius);
+ break;
default:
- //exit(1);
- SG_LOG(SG_INPUT, SG_ALERT, "AIFlightPlan::create() attempting to create unknown leg"
- " this is probably an internal program error");
+ //exit(1);
+ SG_LOG(SG_INPUT, SG_ALERT,
+ "AIFlightPlan::create() attempting to create unknown leg"
+ " this is probably an internal program error");
}
- wpt_iterator = waypoints.begin()+currWpt;
- leg++;
+ wpt_iterator = waypoints.begin() + currWpt;
+ leg++;
}
-/*******************************************************************
- * createPushBack
- * initialize the Aircraft at the parking location
- ******************************************************************/
-void FGAIFlightPlan::createPushBack(bool firstFlight, FGAirport *dep,
- double latitude,
- double longitude,
- double radius,
- const string& fltType,
- const string& aircraftType,
- const string& airline)
+FGAIFlightPlan::waypoint *
+ FGAIFlightPlan::createOnGround(FGAIAircraft * ac,
+ const std::string & aName,
+ const SGGeod & aPos, double aElev,
+ double aSpeed)
{
- double heading;
- double lat;
- double lon;
- double lat2;
- double lon2;
- double az2;
-
- //int currWpt = wpt_iterator - waypoints.begin();
- // Erase all existing waypoints.
- //resetWaypoints();
-
- // We only need to get a valid parking if this is the first leg.
- // Otherwise use the current aircraft position.
- if (firstFlight)
- {
- if (!(dep->getDynamics()->getAvailableParking(&lat, &lon,
- &heading, &gateId,
- radius, fltType,
- aircraftType, airline)))
- {
- SG_LOG(SG_INPUT, SG_WARN, "Could not find parking for a " <<
- aircraftType <<
- " of flight type " << fltType <<
- " of airline " << airline <<
- " at airport " << dep->getId());
- }
- }
- else
- {
- dep->getDynamics()->getParking(gateId, &lat, &lon, &heading);
- }
- heading += 180.0;
- if (heading > 360)
- heading -= 360;
- waypoint *wpt = new waypoint;
- wpt->name = "park";
- wpt->latitude = lat;
- wpt->longitude = lon;
- wpt->altitude = dep->getElevation();
- wpt->speed = -10;
- wpt->crossat = -10000;
- wpt->gear_down = true;
- wpt->flaps_down= true;
- wpt->finished = false;
- wpt->on_ground = true;
- waypoints.push_back(wpt);
-
- // Add park twice, because it uses park once for initialization and once
- // to trigger the departure ATC message
- geo_direct_wgs_84 ( 0, lat, lon, heading,
- 10,
- &lat2, &lon2, &az2 );
- wpt = new waypoint;
- wpt->name = "park2";
- wpt->latitude = lat2;
- wpt->longitude = lon2;
- wpt->altitude = dep->getElevation();
- wpt->speed = -10;
- wpt->crossat = -10000;
- wpt->gear_down = true;
- wpt->flaps_down= true;
- wpt->finished = false;
- wpt->on_ground = true;
- waypoints.push_back(wpt);
- geo_direct_wgs_84 ( 0, lat, lon, heading,
- 2.2*radius,
- &lat2, &lon2, &az2 );
- wpt = new waypoint;
- wpt->name = "taxiStart";
- wpt->latitude = lat2;
- wpt->longitude = lon2;
- wpt->altitude = dep->getElevation();
- wpt->speed = 10;
- wpt->crossat = -10000;
- wpt->gear_down = true;
- wpt->flaps_down= true;
- wpt->finished = false;
- wpt->on_ground = true;
- waypoints.push_back(wpt);
+ waypoint *wpt = new waypoint;
+ wpt->name = aName;
+ wpt->longitude = aPos.getLongitudeDeg();
+ wpt->latitude = aPos.getLatitudeDeg();
+ wpt->altitude = aElev;
+ wpt->speed = aSpeed;
+ wpt->crossat = -10000.1;
+ wpt->gear_down = true;
+ wpt->flaps_down = true;
+ wpt->finished = false;
+ wpt->on_ground = true;
+ wpt->routeIndex = 0;
+ return wpt;
}
-/*******************************************************************
- * createCreate Taxi.
- * initialize the Aircraft at the parking location
- ******************************************************************/
-void FGAIFlightPlan::createTaxi(bool firstFlight, int direction,
- FGAirport *apt, double latitude, double longitude,
- double radius, const string& fltType,
- const string& acType, const string& airline)
+FGAIFlightPlan::waypoint *
+ FGAIFlightPlan::createInAir(FGAIAircraft * ac,
+ const std::string & aName,
+ const SGGeod & aPos, double aElev,
+ double aSpeed)
+{
+ waypoint *wpt = new waypoint;
+ wpt->name = aName;
+ wpt->longitude = aPos.getLongitudeDeg();
+ wpt->latitude = aPos.getLatitudeDeg();
+ wpt->altitude = aElev;
+ wpt->speed = aSpeed;
+ wpt->crossat = -10000.1;
+ wpt->gear_down = false;
+ wpt->flaps_down = false;
+ wpt->finished = false;
+ wpt->on_ground = false;
+ wpt->routeIndex = 0;
+ return wpt;
+}
+
+FGAIFlightPlan::waypoint *
+ FGAIFlightPlan::cloneWithPos(FGAIAircraft * ac, waypoint * aWpt,
+ const std::string & aName,
+ const SGGeod & aPos)
+{
+ waypoint *wpt = new waypoint;
+ wpt->name = aName;
+ wpt->longitude = aPos.getLongitudeDeg();
+ wpt->latitude = aPos.getLatitudeDeg();
+
+ wpt->altitude = aWpt->altitude;
+ wpt->speed = aWpt->speed;
+ wpt->crossat = aWpt->crossat;
+ wpt->gear_down = aWpt->gear_down;
+ wpt->flaps_down = aWpt->flaps_down;
+ wpt->finished = aWpt->finished;
+ wpt->on_ground = aWpt->on_ground;
+ wpt->routeIndex = 0;
+
+ return wpt;
+}
+
+FGAIFlightPlan::waypoint * FGAIFlightPlan::clone(waypoint * aWpt)
+{
+ waypoint *wpt = new waypoint;
+ wpt->name = aWpt->name;
+ wpt->longitude = aWpt->longitude;
+ wpt->latitude = aWpt->latitude;
+
+ wpt->altitude = aWpt->altitude;
+ wpt->speed = aWpt->speed;
+ wpt->crossat = aWpt->crossat;
+ wpt->gear_down = aWpt->gear_down;
+ wpt->flaps_down = aWpt->flaps_down;
+ wpt->finished = aWpt->finished;
+ wpt->on_ground = aWpt->on_ground;
+ wpt->routeIndex = 0;
+
+ return wpt;
+}
+
+
+void FGAIFlightPlan::createDefaultTakeoffTaxi(FGAIAircraft * ac,
+ FGAirport * aAirport,
+ FGRunway * aRunway)
+{
+ SGGeod runwayTakeoff = aRunway->pointOnCenterline(5.0);
+ double airportElev = aAirport->getElevation();
+
+ waypoint *wpt;
+ wpt =
+ createOnGround(ac, "Airport Center", aAirport->geod(), airportElev,
+ ac->getPerformance()->vTaxi());
+ waypoints.push_back(wpt);
+ wpt =
+ createOnGround(ac, "Runway Takeoff", runwayTakeoff, airportElev,
+ ac->getPerformance()->vTaxi());
+ waypoints.push_back(wpt);
+}
+
+void FGAIFlightPlan::createTakeoffTaxi(FGAIAircraft * ac, bool firstFlight,
+ FGAirport * apt,
+ double radius,
+ const string & fltType,
+ const string & acType,
+ const string & airline)
+{
+ double heading, lat, lon;
+
+ // If this function is called during initialization,
+ // make sure we obtain a valid gate ID first
+ // and place the model at the location of the gate.
+ if (firstFlight) {
+ if (!(apt->getDynamics()->getAvailableParking(&lat, &lon,
+ &heading, &gateId,
+ radius, fltType,
+ acType, airline))) {
+ SG_LOG(SG_INPUT, SG_WARN, "Could not find parking for a " <<
+ acType <<
+ " of flight type " << fltType <<
+ " of airline " << airline <<
+ " at airport " << apt->getId());
+ }
+ }
+
+ string rwyClass = getRunwayClassFromTrafficType(fltType);
+
+ // Only set this if it hasn't been set by ATC already.
+ if (activeRunway.empty()) {
+ //cerr << "Getting runway for " << ac->getTrafficRef()->getCallSign() << " at " << apt->getId() << endl;
+ double depHeading = ac->getTrafficRef()->getCourse();
+ apt->getDynamics()->getActiveRunway(rwyClass, 1, activeRunway,
+ depHeading);
+ }
+ rwy = apt->getRunwayByIdent(activeRunway);
+ SGGeod runwayTakeoff = rwy->pointOnCenterline(5.0);
+
+ FGGroundNetwork *gn = apt->getDynamics()->getGroundNetwork();
+ if (!gn->exists()) {
+ createDefaultTakeoffTaxi(ac, apt, rwy);
+ return;
+ }
+
+ intVec ids;
+ int runwayId = gn->findNearestNode(runwayTakeoff);
+
+ // A negative gateId indicates an overflow parking, use a
+ // fallback mechanism for this.
+ // Starting from gate 0 in this case is a bit of a hack
+ // which requires a more proper solution later on.
+ delete taxiRoute;
+ taxiRoute = new FGTaxiRoute;
+
+ // Determine which node to start from.
+ int node = 0;
+ // Find out which node to start from
+ FGParking *park = apt->getDynamics()->getParking(gateId);
+ if (park) {
+ node = park->getPushBackPoint();
+ }
+
+ if (node == -1) {
+ node = gateId;
+ }
+ // HAndle case where parking doens't have a node
+ if ((node == 0) && park) {
+ if (firstFlight) {
+ node = gateId;
+ } else {
+ node = lastNodeVisited;
+ }
+ }
+
+ *taxiRoute = gn->findShortestRoute(node, runwayId);
+ intVecIterator i;
+
+ if (taxiRoute->empty()) {
+ createDefaultTakeoffTaxi(ac, apt, rwy);
+ return;
+ }
+
+ taxiRoute->first();
+ //bool isPushBackPoint = false;
+ if (firstFlight) {
+ // If this is called during initialization, randomly
+ // skip a number of waypoints to get a more realistic
+ // taxi situation.
+ int nrWaypointsToSkip = rand() % taxiRoute->size();
+ // but make sure we always keep two active waypoints
+ // to prevent a segmentation fault
+ for (int i = 0; i < nrWaypointsToSkip - 3; i++) {
+ taxiRoute->next(&node);
+ }
+ apt->getDynamics()->releaseParking(gateId);
+ } else {
+ if (taxiRoute->size() > 1) {
+ taxiRoute->next(&node); // chop off the first waypoint, because that is already the last of the pushback route
+ }
+ }
+
+ // push each node on the taxi route as a waypoint
+ int route;
+ while (taxiRoute->next(&node, &route)) {
+ char buffer[10];
+ snprintf(buffer, 10, "%d", node);
+ FGTaxiNode *tn =
+ apt->getDynamics()->getGroundNetwork()->findNode(node);
+ waypoint *wpt =
+ createOnGround(ac, buffer, tn->getGeod(), apt->getElevation(),
+ ac->getPerformance()->vTaxi());
+ wpt->routeIndex = route;
+ waypoints.push_back(wpt);
+ }
+}
+
+void FGAIFlightPlan::createDefaultLandingTaxi(FGAIAircraft * ac,
+ FGAirport * aAirport)
{
- double wind_speed;
- double wind_heading;
- double heading;
- double lat, lon, az;
- double lat2, lon2, az2;
- waypoint *wpt;
-
- if (direction == 1)
- {
- // If this function is called during initialization,
- // make sure we obtain a valid gate ID first
- // and place the model at the location of the gate.
- if (firstFlight)
- {
- if (!(apt->getDynamics()->getAvailableParking(&lat, &lon,
- &heading, &gateId,
- radius, fltType,
- acType, airline)))
- {
- SG_LOG(SG_INPUT, SG_WARN, "Could not find parking for a " <<
- acType <<
- " of flight type " << fltType <<
- " of airline " << airline <<
- " at airport " << apt->getId());
- }
- //waypoint *wpt = new waypoint;
- //wpt->name = "park";
- //wpt->latitude = lat;
- //wpt->longitude = lon;
- //wpt->altitude = apt->getElevation();
- //wpt->speed = -10;
- //wpt->crossat = -10000;
- //wpt->gear_down = true;
- //wpt->flaps_down= true;
- //wpt->finished = false;
- //wpt->on_ground = true;
- //waypoints.push_back(wpt);
- }
- // "NOTE: this is currently fixed to "com" for commercial traffic
- // Should be changed to be used dynamically to allow "gen" and "mil"
- // as well
- apt->getDynamics()->getActiveRunway("com", 1, activeRunway);
- if (!(globals->get_runways()->search(apt->getId(),
- activeRunway,
- &rwy)))
- {
- SG_LOG(SG_INPUT, SG_ALERT, "Failed to find runway " <<
- activeRunway <<
- " at airport " << apt->getId());
- exit(1);
- }
-
- // Determine the beginning of he runway
- heading = rwy._heading;
- double azimuth = heading + 180.0;
- while ( azimuth >= 360.0 ) { azimuth -= 360.0; }
- geo_direct_wgs_84 ( 0, rwy._lat, rwy._lon, azimuth,
- rwy._length * SG_FEET_TO_METER * 0.5 - 5.0,
- &lat2, &lon2, &az2 );
-
- if (apt->getDynamics()->getGroundNetwork()->exists())
- {
- intVec ids;
- int runwayId = apt->getDynamics()->getGroundNetwork()->findNearestNode(lat2,
- lon2);
-
-
- // A negative gateId indicates an overflow parking, use a
- // fallback mechanism for this.
- // Starting from gate 0 in this case is a bit of a hack
- // which requires a more proper solution later on.
- FGTaxiRoute route;
- if (gateId >= 0)
- route = apt->getDynamics()->getGroundNetwork()->findShortestRoute(gateId,
- runwayId);
- else
- route = apt->getDynamics()->getGroundNetwork()->findShortestRoute(0, runwayId);
- intVecIterator i;
-
- if (route.empty()) {
- //Add the runway startpoint;
- wpt = new waypoint;
- wpt->name = "Airport Center";
- wpt->latitude = latitude;
- wpt->longitude = longitude;
- wpt->altitude = apt->getElevation();
- wpt->speed = 15;
- wpt->crossat = -10000;
- wpt->gear_down = true;
- wpt->flaps_down= true;
- wpt->finished = false;
- wpt->on_ground = true;
- waypoints.push_back(wpt);
-
- //Add the runway startpoint;
- wpt = new waypoint;
- wpt->name = "Runway Takeoff";
- wpt->latitude = lat2;
- wpt->longitude = lon2;
- wpt->altitude = apt->getElevation();
- wpt->speed = 15;
- wpt->crossat = -10000;
- wpt->gear_down = true;
- wpt->flaps_down= true;
- wpt->finished = false;
- wpt->on_ground = true;
- waypoints.push_back(wpt);
- } else {
- int node;
- route.first();
- bool isPushBackPoint = false;
- if (firstFlight) {
- // If this is called during initialization, randomly
- // skip a number of waypoints to get a more realistic
- // taxi situation.
- isPushBackPoint = true;
- int nrWaypoints = route.size();
- int nrWaypointsToSkip = rand() % nrWaypoints;
- // but make sure we always keep two active waypoints
- // to prevent a segmentation fault
- for (int i = 0; i < nrWaypointsToSkip-2; i++) {
- isPushBackPoint = false;
- route.next(&node);
- }
- }
- else {
- //chop off the first two waypoints, because
- // those have already been created
- // by create pushback
- int size = route.size();
- if (size > 2) {
- route.next(&node);
- route.next(&node);
- }
- }
- while(route.next(&node))
- {
- FGTaxiNode *tn = apt->getDynamics()->getGroundNetwork()->findNode(node);
- //ids.pop_back();
- wpt = new waypoint;
- wpt->name = "taxiway"; // fixme: should be the name of the taxiway
- wpt->latitude = tn->getLatitude();
- wpt->longitude = tn->getLongitude();
- // Elevation is currently disregarded when on_ground is true
- // because the AIModel obtains a periodic ground elevation estimate.
- wpt->altitude = apt->getElevation();
- if (isPushBackPoint) {
- wpt->speed = -10;
- isPushBackPoint = false;
- }
- else {
- wpt->speed = 15;
- }
- wpt->crossat = -10000;
- wpt->gear_down = true;
- wpt->flaps_down= true;
- wpt->finished = false;
- wpt->on_ground = true;
- waypoints.push_back(wpt);
- }
- cerr << endl;
- }
- }
- else
- {
- // This is the fallback mechanism, in case no ground network is available
- //Add the runway startpoint;
- wpt = new waypoint;
- wpt->name = "Airport Center";
- wpt->latitude = apt->getLatitude();
- wpt->longitude = apt->getLongitude();
- wpt->altitude = apt->getElevation();
- wpt->speed = 15;
- wpt->crossat = -10000;
- wpt->gear_down = true;
- wpt->flaps_down= true;
- wpt->finished = false;
- wpt->on_ground = true;
- waypoints.push_back(wpt);
-
- //Add the runway startpoint;
- wpt = new waypoint;
- wpt->name = "Runway Takeoff";
- wpt->latitude = lat2;
- wpt->longitude = lon2;
- wpt->altitude = apt->getElevation();
- wpt->speed = 15;
- wpt->crossat = -10000;
- wpt->gear_down = true;
- wpt->flaps_down= true;
- wpt->finished = false;
- wpt->on_ground = true;
- waypoints.push_back(wpt);
- }
- }
- else // Landing taxi
- {
- apt->getDynamics()->getAvailableParking(&lat, &lon, &heading,
- &gateId, radius, fltType,
- acType, airline);
-
- double lat3 = (*(waypoints.end()-1))->latitude;
- double lon3 = (*(waypoints.end()-1))->longitude;
- //cerr << (*(waypoints.end()-1))->name << endl;
-
- // Find a route from runway end to parking/gate.
- if (apt->getDynamics()->getGroundNetwork()->exists())
- {
- intVec ids;
- int runwayId = apt->getDynamics()->getGroundNetwork()->findNearestNode(lat3,
- lon3);
- // A negative gateId indicates an overflow parking, use a
- // fallback mechanism for this.
- // Starting from gate 0 is a bit of a hack...
- FGTaxiRoute route;
- if (gateId >= 0)
- route = apt->getDynamics()->getGroundNetwork()->findShortestRoute(runwayId,
- gateId);
- else
- route = apt->getDynamics()->getGroundNetwork()->findShortestRoute(runwayId, 0);
- intVecIterator i;
-
- // No route found: go from gate directly to runway
- if (route.empty()) {
- //Add the runway startpoint;
- wpt = new waypoint;
- wpt->name = "Airport Center";
- wpt->latitude = latitude;
- wpt->longitude = longitude;
- wpt->altitude = apt->getElevation();
- wpt->speed = 15;
- wpt->crossat = -10000;
- wpt->gear_down = true;
- wpt->flaps_down= true;
- wpt->finished = false;
- wpt->on_ground = true;
- waypoints.push_back(wpt);
-
- //Add the runway startpoint;
- wpt = new waypoint;
- wpt->name = "Runway Takeoff";
- wpt->latitude = lat2;
- wpt->longitude = lon2;
- wpt->altitude = apt->getElevation();
- wpt->speed = 15;
- wpt->crossat = -10000;
- wpt->gear_down = true;
- wpt->flaps_down= true;
- wpt->finished = false;
- wpt->on_ground = true;
- waypoints.push_back(wpt);
- } else {
- int node;
- route.first();
- int size = route.size();
- // Omit the last two waypoints, as
- // those are created by createParking()
- for (int i = 0; i < size-2; i++)
- {
- route.next(&node);
- FGTaxiNode *tn = apt->getDynamics()->getGroundNetwork()->findNode(node);
- wpt = new waypoint;
- wpt->name = "taxiway"; // fixme: should be the name of the taxiway
- wpt->latitude = tn->getLatitude();
- wpt->longitude = tn->getLongitude();
- wpt->altitude = apt->getElevation();
- wpt->speed = 15;
- wpt->crossat = -10000;
- wpt->gear_down = true;
- wpt->flaps_down= true;
- wpt->finished = false;
- wpt->on_ground = true;
- waypoints.push_back(wpt);
- }
- }
- }
- else
- {
- // Use a fallback mechanism in case no ground network is available
- // obtain the location of the gate entrance point
- heading += 180.0;
- if (heading > 360)
- heading -= 360;
- geo_direct_wgs_84 ( 0, lat, lon, heading,
- 100,
- &lat2, &lon2, &az2 );
- wpt = new waypoint;
- wpt->name = "Airport Center";
- wpt->latitude = apt->getLatitude();
- wpt->longitude = apt->getLongitude();
- wpt->altitude = apt->getElevation();
- wpt->speed = 15;
- wpt->crossat = -10000;
- wpt->gear_down = true;
- wpt->flaps_down= true;
- wpt->finished = false;
- wpt->on_ground = true;
- waypoints.push_back(wpt);
-
- wpt = new waypoint;
- wpt->name = "Begin Parking"; //apt->getId(); //wpt_node->getStringValue("name", "END");
- wpt->latitude = lat2;
- wpt->longitude = lon2;
- wpt->altitude = apt->getElevation();
- wpt->speed = 15;
- wpt->crossat = -10000;
- wpt->gear_down = true;
- wpt->flaps_down= true;
- wpt->finished = false;
- wpt->on_ground = true;
- waypoints.push_back(wpt);
-
- //waypoint* wpt;
- //double lat;
- //double lon;
- //double heading;
- apt->getDynamics()->getParking(gateId, &lat, &lon, &heading);
- heading += 180.0;
- if (heading > 360)
- heading -= 360;
-
- wpt = new waypoint;
- wpt->name = "END"; //wpt_node->getStringValue("name", "END");
- wpt->latitude = lat;
- wpt->longitude = lon;
- wpt->altitude = 19;
- wpt->speed = 15;
- wpt->crossat = -10000;
- wpt->gear_down = true;
- wpt->flaps_down= true;
- wpt->finished = false;
- wpt->on_ground = true;
- waypoints.push_back(wpt);
- }
-
+ SGGeod lastWptPos =
+ SGGeod::fromDeg(waypoints.back()->longitude,
+ waypoints.back()->latitude);
+ double airportElev = aAirport->getElevation();
+
+ waypoint *wpt;
+ wpt =
+ createOnGround(ac, "Runway Exit", lastWptPos, airportElev,
+ ac->getPerformance()->vTaxi());
+ waypoints.push_back(wpt);
+ wpt =
+ createOnGround(ac, "Airport Center", aAirport->geod(), airportElev,
+ ac->getPerformance()->vTaxi());
+ waypoints.push_back(wpt);
+
+ double heading, lat, lon;
+ aAirport->getDynamics()->getParking(gateId, &lat, &lon, &heading);
+ wpt =
+ createOnGround(ac, "END", SGGeod::fromDeg(lon, lat), airportElev,
+ ac->getPerformance()->vTaxi());
+ waypoints.push_back(wpt);
+}
+
+void FGAIFlightPlan::createLandingTaxi(FGAIAircraft * ac, FGAirport * apt,
+ double radius,
+ const string & fltType,
+ const string & acType,
+ const string & airline)
+{
+ double heading, lat, lon;
+ apt->getDynamics()->getAvailableParking(&lat, &lon, &heading,
+ &gateId, radius, fltType,
+ acType, airline);
+
+ SGGeod lastWptPos =
+ SGGeod::fromDeg(waypoints.back()->longitude,
+ waypoints.back()->latitude);
+ FGGroundNetwork *gn = apt->getDynamics()->getGroundNetwork();
+
+ // Find a route from runway end to parking/gate.
+ if (!gn->exists()) {
+ createDefaultLandingTaxi(ac, apt);
+ return;
+ }
+
+ intVec ids;
+ int runwayId = gn->findNearestNode(lastWptPos);
+ // A negative gateId indicates an overflow parking, use a
+ // fallback mechanism for this.
+ // Starting from gate 0 is a bit of a hack...
+ //FGTaxiRoute route;
+ delete taxiRoute;
+ taxiRoute = new FGTaxiRoute;
+ if (gateId >= 0)
+ *taxiRoute = gn->findShortestRoute(runwayId, gateId);
+ else
+ *taxiRoute = gn->findShortestRoute(runwayId, 0);
+ intVecIterator i;
+
+ if (taxiRoute->empty()) {
+ createDefaultLandingTaxi(ac, apt);
+ return;
+ }
+
+ int node;
+ taxiRoute->first();
+ int size = taxiRoute->size();
+ // Omit the last two waypoints, as
+ // those are created by createParking()
+ int route;
+ for (int i = 0; i < size - 2; i++) {
+ taxiRoute->next(&node, &route);
+ char buffer[10];
+ snprintf(buffer, 10, "%d", node);
+ FGTaxiNode *tn = gn->findNode(node);
+ waypoint *wpt =
+ createOnGround(ac, buffer, tn->getGeod(), apt->getElevation(),
+ ac->getPerformance()->vTaxi());
+ wpt->routeIndex = route;
+ waypoints.push_back(wpt);
}
}
/*******************************************************************
* CreateTakeOff
- * initialize the Aircraft at the parking location
+ * A note on units:
+ * - Speed -> knots -> nm/hour
+ * - distance along runway =-> meters
+ * - accel / decel -> is given as knots/hour, but this is highly questionable:
+ * for a jet_transport performance class, a accel / decel rate of 5 / 2 is
+ * given respectively. According to performance data.cxx, a value of kts / second seems
+ * more likely however.
+ *
******************************************************************/
-void FGAIFlightPlan::createTakeOff(bool firstFlight, FGAirport *apt, double speed)
+void FGAIFlightPlan::createTakeOff(FGAIAircraft * ac, bool firstFlight,
+ FGAirport * apt, double speed,
+ const string & fltType)
{
- double wind_speed;
- double wind_heading;
- double heading;
- double lat, lon, az;
- double lat2, lon2, az2;
- waypoint *wpt;
-
- // Get the current active runway, based on code from David Luff
- // This should actually be unified and extended to include
- // Preferential runway use schema's
- if (firstFlight)
- {
- //string name;
- // "NOTE: this is currently fixed to "com" for commercial traffic
- // Should be changed to be used dynamically to allow "gen" and "mil"
- // as well
- apt->getDynamics()->getActiveRunway("com", 1, activeRunway);
- if (!(globals->get_runways()->search(apt->getId(),
- activeRunway,
- &rwy)))
- {
- SG_LOG(SG_INPUT, SG_ALERT, "Failed to find runway " <<
- activeRunway <<
- " at airport " << apt->getId());
- exit(1);
- }
- }
- heading = rwy._heading;
- double azimuth = heading + 180.0;
- while ( azimuth >= 360.0 ) { azimuth -= 360.0; }
- geo_direct_wgs_84 ( 0, rwy._lat, rwy._lon, azimuth,
- rwy._length * SG_FEET_TO_METER * 0.5 - 105.0,
- &lat2, &lon2, &az2 );
- wpt = new waypoint;
- wpt->name = "accel";
- wpt->latitude = lat2;
- wpt->longitude = lon2;
- wpt->altitude = apt->getElevation();
- wpt->speed = speed;
- wpt->crossat = -10000;
- wpt->gear_down = true;
- wpt->flaps_down= true;
- wpt->finished = false;
- wpt->on_ground = true;
- waypoints.push_back(wpt);
-
- lat = lat2;
- lon = lon2;
- az = az2;
-
- //Next: the Start of Climb
- geo_direct_wgs_84 ( 0, lat, lon, heading,
- 2560 * SG_FEET_TO_METER,
- &lat2, &lon2, &az2 );
-
- wpt = new waypoint;
- wpt->name = "SOC";
- wpt->latitude = lat2;
- wpt->longitude = lon2;
- wpt->altitude = apt->getElevation()+3000;
- wpt->speed = speed;
- wpt->crossat = -10000;
- wpt->gear_down = true;
- wpt->flaps_down= true;
- wpt->finished = false;
- wpt->on_ground = false;
- waypoints.push_back(wpt);
+ double accel = ac->getPerformance()->acceleration();
+ double vTaxi = ac->getPerformance()->vTaxi();
+ double vRotate = ac->getPerformance()->vRotate();
+ double vTakeoff = ac->getPerformance()->vTakeoff();
+ //double vClimb = ac->getPerformance()->vClimb();
+
+ double accelMetric = (accel * SG_NM_TO_METER) / 3600;
+ double vTaxiMetric = (vTaxi * SG_NM_TO_METER) / 3600;
+ double vRotateMetric = (vRotate * SG_NM_TO_METER) / 3600;
+ double vTakeoffMetric = (vTakeoff * SG_NM_TO_METER) / 3600;
+ //double vClimbMetric = (vClimb * SG_NM_TO_METER) / 3600;
+ // Acceleration = dV / dT
+ // Acceleration X dT = dV
+ // dT = dT / Acceleration
+ //d = (Vf^2 - Vo^2) / (2*a)
+ //double accelTime = (vRotate - vTaxi) / accel;
+ //cerr << "Using " << accelTime << " as total acceleration time" << endl;
+ double accelDistance =
+ (vRotateMetric * vRotateMetric -
+ vTaxiMetric * vTaxiMetric) / (2 * accelMetric);
+ //cerr << "Using " << accelDistance << " " << accelMetric << " " << vRotateMetric << endl;
+ waypoint *wpt;
+ // Get the current active runway, based on code from David Luff
+ // This should actually be unified and extended to include
+ // Preferential runway use schema's
+ // NOTE: DT (2009-01-18: IIRC, this is currently already the case,
+ // because the getActive runway function takes care of that.
+ if (firstFlight) {
+ string rwyClass = getRunwayClassFromTrafficType(fltType);
+ double heading = ac->getTrafficRef()->getCourse();
+ apt->getDynamics()->getActiveRunway(rwyClass, 1, activeRunway,
+ heading);
+ rwy = apt->getRunwayByIdent(activeRunway);
+ }
+
+ double airportElev = apt->getElevation();
+ // Acceleration point, 105 meters into the runway,
+ SGGeod accelPoint = rwy->pointOnCenterline(105.0);
+ wpt = createOnGround(ac, "accel", accelPoint, airportElev, vRotate);
+ waypoints.push_back(wpt);
+
+
+ accelDistance =
+ (vTakeoffMetric * vTakeoffMetric -
+ vTaxiMetric * vTaxiMetric) / (2 * accelMetric);
+ //cerr << "Using " << accelDistance << " " << accelMetric << " " << vTakeoffMetric << endl;
+ accelPoint = rwy->pointOnCenterline(105.0 + accelDistance);
+ wpt = createOnGround(ac, "rotate", accelPoint, airportElev, vTakeoff);
+ waypoints.push_back(wpt);
+
+ accelDistance =
+ ((vTakeoffMetric * 1.1) * (vTakeoffMetric * 1.1) -
+ vTaxiMetric * vTaxiMetric) / (2 * accelMetric);
+ //cerr << "Using " << accelDistance << " " << accelMetric << " " << vTakeoffMetric << endl;
+ accelPoint = rwy->pointOnCenterline(105.0 + accelDistance);
+ wpt =
+ createOnGround(ac, "rotate", accelPoint, airportElev + 1000,
+ vTakeoff * 1.1);
+ wpt->on_ground = false;
+ waypoints.push_back(wpt);
+
+ wpt = cloneWithPos(ac, wpt, "3000 ft", rwy->end());
+ wpt->altitude = airportElev + 3000;
+ waypoints.push_back(wpt);
+
+ // Finally, add two more waypoints, so that aircraft will remain under
+ // Tower control until they have reached the 3000 ft climb point
+ SGGeod pt = rwy->pointOnCenterline(5000 + rwy->lengthM() * 0.5);
+ wpt = cloneWithPos(ac, wpt, "5000 ft", pt);
+ wpt->altitude = airportElev + 5000;
+ waypoints.push_back(wpt);
}
-
+
/*******************************************************************
* CreateClimb
* initialize the Aircraft at the parking location
******************************************************************/
-void FGAIFlightPlan::createClimb(bool firstFlight, FGAirport *apt, double speed, double alt)
+void FGAIFlightPlan::createClimb(FGAIAircraft * ac, bool firstFlight,
+ FGAirport * apt, double speed, double alt,
+ const string & fltType)
{
- double wind_speed;
- double wind_heading;
- double heading;
- //FGRunway rwy;
- double lat, lon, az;
- double lat2, lon2, az2;
- //int direction;
- waypoint *wpt;
-
-
- if (firstFlight)
- {
- //string name;
- // "NOTE: this is currently fixed to "com" for commercial traffic
- // Should be changed to be used dynamically to allow "gen" and "mil"
- // as well
- apt->getDynamics()->getActiveRunway("com", 1, activeRunway);
- if (!(globals->get_runways()->search(apt->getId(),
- activeRunway,
- &rwy)))
- {
- SG_LOG(SG_INPUT, SG_ALERT, "Failed to find runway " <<
- activeRunway <<
- " at airport " << apt->getId());
- exit(1);
- }
- }
-
-
- heading = rwy._heading;
- double azimuth = heading + 180.0;
- while ( azimuth >= 360.0 ) { azimuth -= 360.0; }
- geo_direct_wgs_84 ( 0, rwy._lat, rwy._lon, heading,
- 10*SG_NM_TO_METER,
- &lat2, &lon2, &az2 );
- wpt = new waypoint;
- wpt->name = "10000ft climb";
- wpt->latitude = lat2;
- wpt->longitude = lon2;
- wpt->altitude = 10000;
- wpt->speed = speed;
- wpt->crossat = -10000;
- wpt->gear_down = true;
- wpt->flaps_down= true;
- wpt->finished = false;
- wpt->on_ground = false;
- waypoints.push_back(wpt);
-
-
- geo_direct_wgs_84 ( 0, rwy._lat, rwy._lon, heading,
- 20*SG_NM_TO_METER,
- &lat2, &lon2, &az2 );
- wpt = new waypoint;
- wpt->name = "18000ft climb";
- wpt->latitude = lat2;
- wpt->longitude = lon2;
- wpt->altitude = 18000;
- wpt->speed = speed;
- wpt->crossat = -10000;
- wpt->gear_down = true;
- wpt->flaps_down= true;
- wpt->finished = false;
- wpt->on_ground = false;
- waypoints.push_back(wpt);
-}
+ waypoint *wpt;
+// bool planLoaded = false;
+ string fPLName;
+ double vClimb = ac->getPerformance()->vClimb();
+ if (firstFlight) {
+ string rwyClass = getRunwayClassFromTrafficType(fltType);
+ double heading = ac->getTrafficRef()->getCourse();
+ apt->getDynamics()->getActiveRunway(rwyClass, 1, activeRunway,
+ heading);
+ rwy = apt->getRunwayByIdent(activeRunway);
+ }
+ if (sid) {
+ for (wpt_vector_iterator i = sid->getFirstWayPoint();
+ i != sid->getLastWayPoint(); i++) {
+ waypoints.push_back(clone(*(i)));
+ //cerr << " Cloning waypoint " << endl;
+ }
+ } else {
+ SGGeod climb1 = rwy->pointOnCenterline(10 * SG_NM_TO_METER);
+ wpt = createInAir(ac, "10000ft climb", climb1, vClimb, 10000);
+ wpt->gear_down = true;
+ wpt->flaps_down = true;
+ waypoints.push_back(wpt);
-/*******************************************************************
- * CreateCruise
- * initialize the Aircraft at the parking location
- ******************************************************************/
-void FGAIFlightPlan::createCruise(bool firstFlight, FGAirport *dep,
- FGAirport *arr, double latitude,
- double longitude, double speed,
- double alt)
-{
- double wind_speed;
- double wind_heading;
- double heading;
- double lat, lon, az;
- double lat2, lon2, az2;
- double azimuth;
- waypoint *wpt;
-
- wpt = new waypoint;
- wpt->name = "Cruise"; //wpt_node->getStringValue("name", "END");
- wpt->latitude = latitude;
- wpt->longitude = longitude;
- wpt->altitude = alt;
- wpt->speed = speed;
- wpt->crossat = -10000;
- wpt->gear_down = false;
- wpt->flaps_down= false;
- wpt->finished = false;
- wpt->on_ground = false;
- waypoints.push_back(wpt);
-
-
- // should be changed dynamically to allow "gen" and "mil"
- arr->getDynamics()->getActiveRunway("com", 2, activeRunway);
- if (!(globals->get_runways()->search(arr->getId(),
- activeRunway,
- &rwy)))
- {
- SG_LOG(SG_INPUT, SG_ALERT, "Failed to find runway " <<
- activeRunway <<
- " at airport " << arr->getId());
- exit(1);
- }
- heading = rwy._heading;
- azimuth = heading + 180.0;
- while ( azimuth >= 360.0 ) { azimuth -= 360.0; }
-
-
- geo_direct_wgs_84 ( 0, rwy._lat, rwy._lon, azimuth,
- 110000,
- &lat2, &lon2, &az2 );
- wpt = new waypoint;
- wpt->name = "BOD";
- wpt->latitude = lat2;
- wpt->longitude = lon2;
- wpt->altitude = alt;
- wpt->speed = speed;
- wpt->crossat = alt;
- wpt->gear_down = false;
- wpt->flaps_down= false;
- wpt->finished = false;
- wpt->on_ground = false;
- waypoints.push_back(wpt);
+ SGGeod climb2 = rwy->pointOnCenterline(20 * SG_NM_TO_METER);
+ wpt = cloneWithPos(ac, wpt, "18000ft climb", climb2);
+ wpt->altitude = 18000;
+ waypoints.push_back(wpt);
+ }
}
+
+
/*******************************************************************
- * CreateDecent
- * initialize the Aircraft at the parking location
+ * CreateDescent
+ * Generate a flight path from the last waypoint of the cruise to
+ * the permission to land point
******************************************************************/
-void FGAIFlightPlan::createDecent(FGAirport *apt)
+void FGAIFlightPlan::createDescent(FGAIAircraft * ac, FGAirport * apt,
+ double latitude, double longitude,
+ double speed, double alt,
+ const string & fltType,
+ double requiredDistance)
{
+ bool reposition = false;
+ waypoint *wpt;
+ double vDescent = ac->getPerformance()->vDescent();
+ double vApproach = ac->getPerformance()->vApproach();
+
+
+ //Beginning of Descent
+ string rwyClass = getRunwayClassFromTrafficType(fltType);
+ double heading = ac->getTrafficRef()->getCourse();
+ apt->getDynamics()->getActiveRunway(rwyClass, 2, activeRunway,
+ heading);
+ rwy = apt->getRunwayByIdent(activeRunway);
+
+
+
+ // Create a slow descent path that ends 250 lateral to the runway.
+ double initialTurnRadius = getTurnRadius(vDescent, true);
+ //double finalTurnRadius = getTurnRadius(vApproach, true);
+
+// get length of the downwind leg for the intended runway
+ double distanceOut = apt->getDynamics()->getApproachController()->getRunway(rwy->name())->getApproachDistance(); //12 * SG_NM_TO_METER;
+ //time_t previousArrivalTime= apt->getDynamics()->getApproachController()->getRunway(rwy->name())->getEstApproachTime();
+
+
+ SGGeod current = SGGeod::fromDegM(longitude, latitude, 0);
+ SGGeod initialTarget = rwy->pointOnCenterline(-distanceOut);
+ SGGeod refPoint = rwy->pointOnCenterline(0);
+ double distance = SGGeodesy::distanceM(current, initialTarget);
+ double azimuth = SGGeodesy::courseDeg(current, initialTarget);
+ double dummyAz2;
+
+ // To prevent absurdly steep approaches, compute the origin from where the approach should have started
+ SGGeod origin;
+
+ if (ac->getTrafficRef()->getCallSign() ==
+ fgGetString("/ai/track-callsign")) {
+ //cerr << "Reposition information: Actual distance " << distance << ". required distance " << requiredDistance << endl;
+ //exit(1);
+ }
+
+ if (distance < requiredDistance * 0.8) {
+ reposition = true;
+ SGGeodesy::direct(initialTarget, azimuth,
+ -requiredDistance, origin, dummyAz2);
+
+ distance = SGGeodesy::distanceM(current, initialTarget);
+ azimuth = SGGeodesy::courseDeg(current, initialTarget);
+ } else {
+ origin = current;
+ }
+
+
+ double dAlt = alt - (apt->getElevation() + 2000);
+
+ double nPoints = 100;
+
+ char buffer[16];
+
+ // The descent path contains the following phases:
+ // 1) a linear glide path from the initial position to
+ // 2) a semi circle turn to final
+ // 3) approach
+
+ //cerr << "Phase 1: Linear Descent path to runway" << rwy->name() << endl;
+ // Create an initial destination point on a semicircle
+ //cerr << "lateral offset : " << lateralOffset << endl;
+ //cerr << "Distance : " << distance << endl;
+ //cerr << "Azimuth : " << azimuth << endl;
+ //cerr << "Initial Lateral point: " << lateralOffset << endl;
+ double lat = refPoint.getLatitudeDeg();
+ double lon = refPoint.getLongitudeDeg();
+ //cerr << "Reference point (" << lat << ", " << lon << ")." << endl;
+ lat = initialTarget.getLatitudeDeg();
+ lon = initialTarget.getLongitudeDeg();
+ //cerr << "Initial Target point (" << lat << ", " << lon << ")." << endl;
+
+ double ratio = initialTurnRadius / distance;
+ if (ratio > 1.0)
+ ratio = 1.0;
+ if (ratio < -1.0)
+ ratio = -1.0;
+
+ double newHeading = asin(ratio) * SG_RADIANS_TO_DEGREES;
+ double newDistance =
+ cos(newHeading * SG_DEGREES_TO_RADIANS) * distance;
+ //cerr << "new distance " << newDistance << ". additional Heading " << newHeading << endl;
+ double side = azimuth - rwy->headingDeg();
+ double lateralOffset = initialTurnRadius;
+ if (side < 0)
+ side += 360;
+ if (side < 180) {
+ lateralOffset *= -1;
+ }
+ // Calculate the ETA at final, based on remaining distance, and approach speed.
+ // distance should really consist of flying time to terniary target, plus circle
+ // but the distance to secondary target should work as a reasonable approximation
+ // aditionally add the amount of distance covered by making a turn of "side"
+ double turnDistance = (2 * M_PI * initialTurnRadius) * (side / 360.0);
+ time_t remaining =
+ (turnDistance + distance) / ((vDescent * SG_NM_TO_METER) / 3600.0);
+ time_t now = time(NULL) + fgGetLong("/sim/time/warp");
+ //if (ac->getTrafficRef()->getCallSign() == fgGetString("/ai/track-callsign")) {
+ // cerr << " Arrival time estimation: turn angle " << side << ". Turn distance " << turnDistance << ". Linear distance " << distance << ". Time to go " << remaining << endl;
+ // //exit(1);
+ //}
+
+ time_t eta = now + remaining;
+ //choose a distance to the runway such that it will take at least 60 seconds more
+ // time to get there than the previous aircraft.
+ // Don't bother when aircraft need to be repositioned, because that marks the initialization phased...
+
+ time_t newEta;
+
+ if (reposition == false) {
+ newEta =
+ apt->getDynamics()->getApproachController()->getRunway(rwy->
+ name
+ ())->
+ requestTimeSlot(eta);
+ } else {
+ newEta = eta;
+ }
+ //if ((eta < (previousArrivalTime+60)) && (reposition == false)) {
+ arrivalTime = newEta;
+ time_t additionalTimeNeeded = newEta - eta;
+ double distanceCovered =
+ ((vApproach * SG_NM_TO_METER) / 3600.0) * additionalTimeNeeded;
+ distanceOut += distanceCovered;
+ //apt->getDynamics()->getApproachController()->getRunway(rwy->name())->setEstApproachTime(eta+additionalTimeNeeded);
+ //cerr << "Adding additional distance: " << distanceCovered << " to allow " << additionalTimeNeeded << " seconds of flying time" << endl << endl;
+ //} else {
+ //apt->getDynamics()->getApproachController()->getRunway(rwy->name())->setEstApproachTime(eta);
+ //}
+ //cerr << "Timing information : Previous eta: " << previousArrivalTime << ". Current ETA : " << eta << endl;
+
+ SGGeod secondaryTarget =
+ rwy->pointOffCenterline(-distanceOut, lateralOffset);
+ initialTarget = rwy->pointOnCenterline(-distanceOut);
+ distance = SGGeodesy::distanceM(origin, secondaryTarget);
+ azimuth = SGGeodesy::courseDeg(origin, secondaryTarget);
+
+
+ lat = secondaryTarget.getLatitudeDeg();
+ lon = secondaryTarget.getLongitudeDeg();
+ //cerr << "Secondary Target point (" << lat << ", " << lon << ")." << endl;
+ //cerr << "Distance : " << distance << endl;
+ //cerr << "Azimuth : " << azimuth << endl;
+
+
+ ratio = initialTurnRadius / distance;
+ if (ratio > 1.0)
+ ratio = 1.0;
+ if (ratio < -1.0)
+ ratio = -1.0;
+ newHeading = asin(ratio) * SG_RADIANS_TO_DEGREES;
+ newDistance = cos(newHeading * SG_DEGREES_TO_RADIANS) * distance;
+ //cerr << "new distance realative to secondary target: " << newDistance << ". additional Heading " << newHeading << endl;
+ if (side < 180) {
+ azimuth += newHeading;
+ } else {
+ azimuth -= newHeading;
+ }
+
+ SGGeod tertiaryTarget;
+ SGGeodesy::direct(origin, azimuth,
+ newDistance, tertiaryTarget, dummyAz2);
+
+ lat = tertiaryTarget.getLatitudeDeg();
+ lon = tertiaryTarget.getLongitudeDeg();
+ //cerr << "tertiary Target point (" << lat << ", " << lon << ")." << endl;
+
+
+ for (int i = 1; i < nPoints; i++) {
+ SGGeod result;
+ double currentDist = i * (newDistance / nPoints);
+ double currentAltitude = alt - (i * (dAlt / nPoints));
+ SGGeodesy::direct(origin, azimuth, currentDist, result, dummyAz2);
+ snprintf(buffer, 16, "descent%03d", i);
+ wpt = createInAir(ac, buffer, result, currentAltitude, vDescent);
+ wpt->crossat = currentAltitude;
+ wpt->trackLength = (newDistance / nPoints);
+ waypoints.push_back(wpt);
+ //cerr << "Track Length : " << wpt->trackLength;
+ //cerr << " Position : " << result.getLatitudeDeg() << " " << result.getLongitudeDeg() << " " << currentAltitude << endl;
+ }
+
+ //cerr << "Phase 2: Circle " << endl;
+ double initialAzimuth =
+ SGGeodesy::courseDeg(secondaryTarget, tertiaryTarget);
+ double finalAzimuth =
+ SGGeodesy::courseDeg(secondaryTarget, initialTarget);
+
+ //cerr << "Angles from secondary target: " << initialAzimuth << " " << finalAzimuth << endl;
+ int increment, startval, endval;
+ // circle right around secondary target if orig of position is to the right of the runway
+ // i.e. use negative angles; else circle leftward and use postivi
+ if (side < 180) {
+ increment = -1;
+ startval = floor(initialAzimuth);
+ endval = ceil(finalAzimuth);
+ if (endval > startval) {
+ endval -= 360;
+ }
+ } else {
+ increment = 1;
+ startval = ceil(initialAzimuth);
+ endval = floor(finalAzimuth);
+ if (endval < startval) {
+ endval += 360;
+ }
+
+ }
+
+ //cerr << "creating circle between " << startval << " and " << endval << " using " << increment << endl;
+ double trackLength = (2 * M_PI * initialTurnRadius) / 360.0;
+ for (int i = startval; i != endval; i += increment) {
+ SGGeod result;
+ double currentAltitude = apt->getElevation() + 2000;
+ SGGeodesy::direct(secondaryTarget, i,
+ initialTurnRadius, result, dummyAz2);
+ snprintf(buffer, 16, "turn%03d", i);
+ wpt = createInAir(ac, buffer, result, currentAltitude, vDescent);
+ wpt->crossat = currentAltitude;
+ wpt->trackLength = trackLength;
+ //cerr << "Track Length : " << wpt->trackLength;
+ waypoints.push_back(wpt);
+ //cerr << " Position : " << result.getLatitudeDeg() << " " << result.getLongitudeDeg() << " " << currentAltitude << endl;
+ }
+
+
+ // The approach leg should bring the aircraft to approximately 4-6 out, after which the landing phase should take over.
+ //cerr << "Phase 3: Approach" << endl;
+ distanceOut -= distanceCovered;
+ for (int i = 1; i < nPoints; i++) {
+ SGGeod result;
+ double currentDist = i * (distanceOut / nPoints);
+ double currentAltitude =
+ apt->getElevation() + 2000 - (i * 2000 / nPoints);
+ snprintf(buffer, 16, "final%03d", i);
+ result = rwy->pointOnCenterline((-distanceOut) + currentDist);
+ wpt = createInAir(ac, buffer, result, currentAltitude, vApproach);
+ wpt->crossat = currentAltitude;
+ wpt->trackLength = (distanceOut / nPoints);
+ // account for the extra distance due to an extended downwind leg
+ if (i == 1) {
+ wpt->trackLength += distanceCovered;
+ }
+ //cerr << "Track Length : " << wpt->trackLength;
+ waypoints.push_back(wpt);
+ //cerr << " Position : " << result.getLatitudeDeg() << " " << result.getLongitudeDeg() << " " << currentAltitude << endl;
+ }
+
+ //cerr << "Done" << endl;
+
+ // Erase the two bogus BOD points: Note check for conflicts with scripted AI flightPlans
+ IncrementWaypoint(true);
+ IncrementWaypoint(true);
+
+ if (reposition) {
+ double tempDistance;
+ //double minDistance = HUGE_VAL;
+ string wptName;
+ tempDistance = SGGeodesy::distanceM(current, initialTarget);
+ time_t eta =
+ tempDistance / ((vDescent * SG_NM_TO_METER) / 3600.0) + now;
+ time_t newEta =
+ apt->getDynamics()->getApproachController()->getRunway(rwy->
+ name
+ ())->
+ requestTimeSlot(eta);
+ arrivalTime = newEta;
+ double newDistance =
+ ((vDescent * SG_NM_TO_METER) / 3600.0) * (newEta - now);
+ //cerr << "Repositioning information : eta" << eta << ". New ETA " << newEta << ". Diff = " << (newEta - eta) << ". Distance = " << tempDistance << ". New distance = " << newDistance << endl;
+ IncrementWaypoint(true); // remove waypoint BOD2
+ while (checkTrackLength("final001") > newDistance) {
+ IncrementWaypoint(true);
+ }
+ //cerr << "Repositioning to waypoint " << (*waypoints.begin())->name << endl;
+ ac->resetPositionFromFlightPlan();
+ }
+
- // Ten thousand ft. Slowing down to 240 kts
- double wind_speed;
- double wind_heading;
- double heading;
- //FGRunway rwy;
- double lat, lon, az;
- double lat2, lon2, az2;
- double azimuth;
- //int direction;
- waypoint *wpt;
-
- //Beginning of Decent
- //string name;
- // allow "mil" and "gen" as well
- apt->getDynamics()->getActiveRunway("com", 2, activeRunway);
- if (!(globals->get_runways()->search(apt->getId(),
- activeRunway,
- &rwy)))
- {
- SG_LOG(SG_INPUT, SG_ALERT, "Failed to find runway " <<
- activeRunway <<
- " at airport " << apt->getId());
- exit(1);
- }
-
- heading = rwy._heading;
- azimuth = heading + 180.0;
- while ( azimuth >= 360.0 ) { azimuth -= 360.0; }
- geo_direct_wgs_84 ( 0, rwy._lat, rwy._lon, azimuth,
- 100000,
- &lat2, &lon2, &az2 );
-
- wpt = new waypoint;
- wpt->name = "Dec 10000ft"; //wpt_node->getStringValue("name", "END");
- wpt->latitude = lat2;
- wpt->longitude = lon2;
- wpt->altitude = apt->getElevation();
- wpt->speed = 240;
- wpt->crossat = 10000;
- wpt->gear_down = false;
- wpt->flaps_down= false;
- wpt->finished = false;
- wpt->on_ground = false;
- waypoints.push_back(wpt);
-
- // Three thousand ft. Slowing down to 160 kts
- geo_direct_wgs_84 ( 0, rwy._lat, rwy._lon, azimuth,
- 8*SG_NM_TO_METER,
- &lat2, &lon2, &az2 );
- wpt = new waypoint;
- wpt->name = "DEC 3000ft"; //wpt_node->getStringValue("name", "END");
- wpt->latitude = lat2;
- wpt->longitude = lon2;
- wpt->altitude = apt->getElevation();
- wpt->speed = 160;
- wpt->crossat = 3000;
- wpt->gear_down = true;
- wpt->flaps_down= true;
- wpt->finished = false;
- wpt->on_ground = false;
- waypoints.push_back(wpt);
}
+
/*******************************************************************
* CreateLanding
- * initialize the Aircraft at the parking location
+ * Create a flight path from the "permision to land" point (currently
+ hardcoded at 5000 meters from the threshold) to the threshold, at
+ a standard glide slope angle of 3 degrees.
******************************************************************/
-void FGAIFlightPlan::createLanding(FGAirport *apt)
+void FGAIFlightPlan::createLanding(FGAIAircraft * ac, FGAirport * apt,
+ const string & fltType)
{
- // Ten thousand ft. Slowing down to 150 kts
- double wind_speed;
- double wind_heading;
- double heading;
- //FGRunway rwy;
- double lat, lon, az;
- double lat2, lon2, az2;
- double azimuth;
- //int direction;
- waypoint *wpt;
-
-
- heading = rwy._heading;
- azimuth = heading + 180.0;
- while ( azimuth >= 360.0 ) { azimuth -= 360.0; }
-
- //Runway Threshold
- geo_direct_wgs_84 ( 0, rwy._lat, rwy._lon, azimuth,
- rwy._length*0.45 * SG_FEET_TO_METER,
- &lat2, &lon2, &az2 );
- wpt = new waypoint;
- wpt->name = "Threshold"; //wpt_node->getStringValue("name", "END");
- wpt->latitude = lat2;
- wpt->longitude = lon2;
- wpt->altitude = apt->getElevation();
- wpt->speed = 150;
- wpt->crossat = apt->getElevation();
- wpt->gear_down = true;
- wpt->flaps_down= true;
- wpt->finished = false;
- wpt->on_ground = true;
- waypoints.push_back(wpt);
-
- //Full stop at the runway centerpoint
- geo_direct_wgs_84 ( 0, rwy._lat, rwy._lon, azimuth,
- rwy._length*0.45,
- &lat2, &lon2, &az2 );
- wpt = new waypoint;
- wpt->name = "Center"; //wpt_node->getStringValue("name", "END");
- wpt->latitude = rwy._lat;
- wpt->longitude = rwy._lon;
- wpt->altitude = apt->getElevation();
- wpt->speed = 30;
- wpt->crossat = -10000;
- wpt->gear_down = true;
- wpt->flaps_down= true;
- wpt->finished = false;
- wpt->on_ground = true;
- waypoints.push_back(wpt);
-
- geo_direct_wgs_84 ( 0, rwy._lat, rwy._lon, heading,
- rwy._length*0.45 * SG_FEET_TO_METER,
- &lat2, &lon2, &az2 );
- wpt = new waypoint;
- wpt->name = "Threshold"; //wpt_node->getStringValue("name", "END");
- wpt->latitude = lat2;
- wpt->longitude = lon2;
- wpt->altitude = apt->getElevation();
- wpt->speed = 15;
- wpt->crossat = apt->getElevation();
- wpt->gear_down = true;
- wpt->flaps_down= true;
- wpt->finished = false;
- wpt->on_ground = true;
- waypoints.push_back(wpt);
+ double vTouchdown = ac->getPerformance()->vTouchdown();
+ //double vTaxi = ac->getPerformance()->vTaxi();
+
+ //string rwyClass = getRunwayClassFromTrafficType(fltType);
+ //double heading = ac->getTrafficRef()->getCourse();
+ //apt->getDynamics()->getActiveRunway(rwyClass, 2, activeRunway, heading);
+ //rwy = apt->getRunwayByIdent(activeRunway);
+
+
+ waypoint *wpt;
+ double aptElev = apt->getElevation();
+
+ SGGeod coord;
+ char buffer[12];
+ for (int i = 1; i < 10; i++) {
+ snprintf(buffer, 12, "wpt%d", i);
+ coord = rwy->pointOnCenterline(rwy->lengthM() * (i / 10.0));
+ wpt = createOnGround(ac, buffer, coord, aptElev, (vTouchdown / i));
+ wpt->crossat = apt->getElevation();
+ waypoints.push_back(wpt);
+ }
+
+ /*
+ //Runway Threshold
+ wpt = createOnGround(ac, "Threshold", rwy->threshold(), aptElev, vTouchdown);
+ wpt->crossat = apt->getElevation();
+ waypoints.push_back(wpt);
+
+ // Roll-out
+ wpt = createOnGround(ac, "Center", rwy->geod(), aptElev, vTaxi*2);
+ waypoints.push_back(wpt);
+
+ SGGeod rollOut = rwy->pointOnCenterline(rwy->lengthM() * 0.9);
+ wpt = createOnGround(ac, "Roll Out", rollOut, aptElev, vTaxi);
+ wpt->crossat = apt->getElevation();
+ waypoints.push_back(wpt);
+ */
}
/*******************************************************************
* CreateParking
* initialize the Aircraft at the parking location
******************************************************************/
-void FGAIFlightPlan::createParking(FGAirport *apt, double radius)
+void FGAIFlightPlan::createParking(FGAIAircraft * ac, FGAirport * apt,
+ double radius)
+{
+ waypoint *wpt;
+ double aptElev = apt->getElevation();
+ double lat = 0.0, lat2 = 0.0;
+ double lon = 0.0, lon2 = 0.0;
+ double az2 = 0.0;
+ double heading = 0.0;
+
+ double vTaxi = ac->getPerformance()->vTaxi();
+ double vTaxiReduced = vTaxi * (2.0 / 3.0);
+ apt->getDynamics()->getParking(gateId, &lat, &lon, &heading);
+ heading += 180.0;
+ if (heading > 360)
+ heading -= 360;
+ geo_direct_wgs_84(0, lat, lon, heading,
+ 2.2 * radius, &lat2, &lon2, &az2);
+ wpt =
+ createOnGround(ac, "taxiStart", SGGeod::fromDeg(lon2, lat2),
+ aptElev, vTaxiReduced);
+ waypoints.push_back(wpt);
+
+ geo_direct_wgs_84(0, lat, lon, heading,
+ 0.1 * radius, &lat2, &lon2, &az2);
+
+ wpt =
+ createOnGround(ac, "taxiStart2", SGGeod::fromDeg(lon2, lat2),
+ aptElev, vTaxiReduced);
+ waypoints.push_back(wpt);
+
+ wpt =
+ createOnGround(ac, "END", SGGeod::fromDeg(lon, lat), aptElev,
+ vTaxiReduced);
+ waypoints.push_back(wpt);
+}
+
+/**
+ *
+ * @param fltType a string describing the type of
+ * traffic, normally used for gate assignments
+ * @return a converted string that gives the runway
+ * preference schedule to be used at aircraft having
+ * a preferential runway schedule implemented (i.e.
+ * having a rwyprefs.xml file
+ *
+ * Currently valid traffic types for gate assignment:
+ * - gate (commercial gate)
+ * - cargo (commercial gargo),
+ * - ga (general aviation) ,
+ * - ul (ultralight),
+ * - mil-fighter (military - fighter),
+ * - mil-transport (military - transport)
+ *
+ * Valid runway classes:
+ * - com (commercial traffic: jetliners, passenger and cargo)
+ * - gen (general aviation)
+ * - ul (ultralight: I can imagine that these may share a runway with ga on some airports)
+ * - mil (all military traffic)
+ */
+string FGAIFlightPlan::getRunwayClassFromTrafficType(string fltType)
+{
+ if ((fltType == "gate") || (fltType == "cargo")) {
+ return string("com");
+ }
+ if (fltType == "ga") {
+ return string("gen");
+ }
+ if (fltType == "ul") {
+ return string("ul");
+ }
+ if ((fltType == "mil-fighter") || (fltType == "mil-transport")) {
+ return string("mil");
+ }
+ return string("com");
+}
+
+
+double FGAIFlightPlan::getTurnRadius(double speed, bool inAir)
{
- waypoint* wpt;
- double lat, lat2;
- double lon, lon2;
- double az2;
- double heading;
- apt->getDynamics()->getParking(gateId, &lat, &lon, &heading);
- heading += 180.0;
- if (heading > 360)
- heading -= 360;
- geo_direct_wgs_84 ( 0, lat, lon, heading,
- 2.2*radius,
- &lat2, &lon2, &az2 );
- wpt = new waypoint;
- wpt->name = "taxiStart";
- wpt->latitude = lat2;
- wpt->longitude = lon2;
- wpt->altitude = apt->getElevation();
- wpt->speed = 10;
- wpt->crossat = -10000;
- wpt->gear_down = true;
- wpt->flaps_down= true;
- wpt->finished = false;
- wpt->on_ground = true;
- waypoints.push_back(wpt);
- geo_direct_wgs_84 ( 0, lat, lon, heading,
- 0.1 *radius,
- &lat2, &lon2, &az2 );
- wpt = new waypoint;
- wpt->name = "taxiStart";
- wpt->latitude = lat2;
- wpt->longitude = lon2;
- wpt->altitude = apt->getElevation();
- wpt->speed = 10;
- wpt->crossat = -10000;
- wpt->gear_down = true;
- wpt->flaps_down= true;
- wpt->finished = false;
- wpt->on_ground = true;
- waypoints.push_back(wpt);
-
- wpt = new waypoint;
- wpt->name = "END"; //wpt_node->getStringValue("name", "END");
- wpt->latitude = lat;
- wpt->longitude = lon;
- wpt->altitude = apt->getElevation();
- wpt->speed = 15;
- wpt->crossat = -10000;
- wpt->gear_down = true;
- wpt->flaps_down= true;
- wpt->finished = false;
- wpt->on_ground = true;
- waypoints.push_back(wpt);
+ double turn_radius;
+ if (inAir == false) {
+ turn_radius = ((360 / 30) * fabs(speed)) / (2 * M_PI);
+ } else {
+ turn_radius = 0.1911 * speed * speed; // an estimate for 25 degrees bank
+ }
+ return turn_radius;
}
projects / flightgear.git / blobdiff