1 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
6 Purpose: Schedules and runs the model routines.
8 ------------- Copyright (C) 1999 Jon S. Berndt (jsb@hal-pc.org) -------------
10 This program is free software; you can redistribute it and/or modify it under
11 the terms of the GNU General Public License as published by the Free Software
12 Foundation; either version 2 of the License, or (at your option) any later
15 This program is distributed in the hope that it will be useful, but WITHOUT
16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
17 FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
20 You should have received a copy of the GNU General Public License along with
21 this program; if not, write to the Free Software Foundation, Inc., 59 Temple
22 Place - Suite 330, Boston, MA 02111-1307, USA.
24 Further information about the GNU General Public License can also be found on
25 the world wide web at http://www.gnu.org.
27 FUNCTIONAL DESCRIPTION
28 --------------------------------------------------------------------------------
30 This class wraps up the simulation scheduling routines.
33 --------------------------------------------------------------------------------
36 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
37 COMMENTS, REFERENCES, and NOTES
38 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
40 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
42 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
45 # include <simgear/compiler.h>
46 # include STL_IOSTREAM
47 # include STL_ITERATOR
49 # if defined(sgi) && !defined(__GNUC__)
50 # include <iostream.h>
57 #include "FGFDMExec.h"
59 #include "FGAtmosphere.h"
61 #include "FGPropulsion.h"
62 #include "FGMassBalance.h"
63 #include "FGGroundReactions.h"
64 #include "FGAerodynamics.h"
65 #include "FGInertial.h"
66 #include "FGAircraft.h"
67 #include "FGTranslation.h"
68 #include "FGRotation.h"
69 #include "FGPosition.h"
70 #include "FGAuxiliary.h"
72 #include "FGConfigFile.h"
73 #include "FGInitialCondition.h"
74 #include "FGPropertyManager.h"
76 static const char *IdSrc = "$Id$";
77 static const char *IdHdr = ID_FDMEXEC;
79 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
81 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
83 unsigned int FGFDMExec::FDMctr = 0;
84 FGPropertyManager* FGFDMExec::master=0;
86 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
88 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
92 FGFDMExec::FGFDMExec(FGPropertyManager* root)
122 char* num = getenv("JSBSIM_DEBUG");
123 if (!num) debug_lvl = 1;
124 else debug_lvl = atoi(num); // set debug level
125 } catch (...) { // if error set to 1
129 if (root == 0) master= new FGPropertyManager;
132 instance = master->GetNode("/fdm/jsbsim",IdFDM,true);
133 instance->SetDouble("zero",0);
137 // this is here to catch errors in binding member functions
138 // to the property tree.
141 } catch ( string msg ) {
142 cout << "Caught error: " << msg << endl;
147 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
149 FGFDMExec::~FGFDMExec()
153 } catch ( string msg ) {
154 cout << "Caught error: " << msg << endl;
157 for (unsigned int i=1; i<SlaveFDMList.size(); i++) delete SlaveFDMList[i]->exec;
158 SlaveFDMList.clear();
163 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
165 bool FGFDMExec::Allocate(void)
169 Atmosphere = new FGAtmosphere(this);
170 FCS = new FGFCS(this);
171 Propulsion = new FGPropulsion(this);
172 MassBalance = new FGMassBalance(this);
173 Aerodynamics = new FGAerodynamics (this);
174 Inertial = new FGInertial(this);
175 GroundReactions = new FGGroundReactions(this);
176 Aircraft = new FGAircraft(this);
177 Translation = new FGTranslation(this);
178 Rotation = new FGRotation(this);
179 Position = new FGPosition(this);
180 Auxiliary = new FGAuxiliary(this);
181 Output = new FGOutput(this);
183 State = new FGState(this); // This must be done here, as the FGState
184 // class needs valid pointers to the above
187 // Initialize models so they can communicate with each other
189 if (!Atmosphere->InitModel()) {
190 cerr << fgred << "Atmosphere model init failed" << fgdef << endl;
192 if (!FCS->InitModel()) {
193 cerr << fgred << "FCS model init failed" << fgdef << endl;
195 if (!Propulsion->InitModel()) {
196 cerr << fgred << "FGPropulsion model init failed" << fgdef << endl;
198 if (!MassBalance->InitModel()) {
199 cerr << fgred << "FGMassBalance model init failed" << fgdef << endl;
201 if (!Aerodynamics->InitModel()) {
202 cerr << fgred << "FGAerodynamics model init failed" << fgdef << endl;
204 if (!Inertial->InitModel()) {
205 cerr << fgred << "FGInertial model init failed" << fgdef << endl;
207 if (!GroundReactions->InitModel()) {
208 cerr << fgred << "Ground Reactions model init failed" << fgdef << endl;
210 if (!Aircraft->InitModel()) {
211 cerr << fgred << "Aircraft model init failed" << fgdef << endl;
213 if (!Translation->InitModel()) {
214 cerr << fgred << "Translation model init failed" << fgdef << endl;
216 if (!Rotation->InitModel()) {
217 cerr << fgred << "Rotation model init failed" << fgdef << endl;
219 if (!Position->InitModel()) {
220 cerr << fgred << "Position model init failed" << fgdef << endl;
222 if (!Auxiliary->InitModel()) {
223 cerr << fgred << "Auxiliary model init failed" << fgdef << endl;
225 if (!Output->InitModel()) {
226 cerr << fgred << "Output model init failed" << fgdef << endl;
229 if (Error > 0) result = false;
231 // Schedule a model. The second arg (the integer) is the pass number. For
232 // instance, the atmosphere model gets executed every fifth pass it is called
233 // by the executive. Everything else here gets executed each pass.
235 Schedule(Atmosphere, 1);
237 Schedule(Propulsion, 1);
238 Schedule(MassBalance, 1);
239 Schedule(Aerodynamics, 1);
240 Schedule(Inertial, 1);
241 Schedule(GroundReactions, 1);
242 Schedule(Aircraft, 1);
243 Schedule(Rotation, 1);
244 Schedule(Translation, 1);
245 Schedule(Position, 1);
246 Schedule(Auxiliary, 1);
254 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
256 bool FGFDMExec::DeAllocate(void) {
258 if ( Atmosphere != 0 ) delete Atmosphere;
259 if ( FCS != 0 ) delete FCS;
260 if ( Propulsion != 0) delete Propulsion;
261 if ( MassBalance != 0) delete MassBalance;
262 if ( Aerodynamics != 0) delete Aerodynamics;
263 if ( Inertial != 0) delete Inertial;
264 if ( GroundReactions != 0) delete GroundReactions;
265 if ( Aircraft != 0 ) delete Aircraft;
266 if ( Translation != 0 ) delete Translation;
267 if ( Rotation != 0 ) delete Rotation;
268 if ( Position != 0 ) delete Position;
269 if ( Auxiliary != 0 ) delete Auxiliary;
270 if ( Output != 0 ) delete Output;
271 if ( State != 0 ) delete State;
295 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
297 int FGFDMExec::Schedule(FGModel* model, int rate)
299 FGModel* model_iterator;
301 model_iterator = FirstModel;
303 if (model_iterator == 0L) { // this is the first model
306 FirstModel->NextModel = 0L;
307 FirstModel->SetRate(rate);
309 } else { // subsequent model
311 while (model_iterator->NextModel != 0L) {
312 model_iterator = model_iterator->NextModel;
314 model_iterator->NextModel = model;
315 model_iterator->NextModel->SetRate(rate);
322 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
324 bool FGFDMExec::Run(void)
326 FGModel* model_iterator;
328 if (frozen) return true;
330 model_iterator = FirstModel;
331 if (model_iterator == 0L) return false;
335 for (unsigned int i=0; i<SlaveFDMList.size(); i++) {
340 while (!model_iterator->Run()) {
341 model_iterator = model_iterator->NextModel;
342 if (model_iterator == 0L) break;
350 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
352 bool FGFDMExec::RunIC(FGInitialCondition *fgic)
355 State->Initialize(fgic);
361 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
363 vector <string> FGFDMExec::EnumerateFDMs(void)
365 vector <string> FDMList;
367 FDMList.push_back(Aircraft->GetAircraftName());
369 for (unsigned int i=1; i<SlaveFDMList.size(); i++) {
370 FDMList.push_back(SlaveFDMList[i]->exec->GetAircraft()->GetAircraftName());
376 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
378 bool FGFDMExec::LoadModel(string APath, string EPath, string model)
382 string aircraftCfgFileName;
384 AircraftPath = APath;
388 aircraftCfgFileName = AircraftPath + "/" + model + "/" + model + ".xml";
390 aircraftCfgFileName = AircraftPath + ";" + model + ";" + model + ".xml";
393 FGConfigFile AC_cfg(aircraftCfgFileName);
394 if (!AC_cfg.IsOpen()) return false;
401 if (!ReadPrologue(&AC_cfg)) return false;
403 while ((AC_cfg.GetNextConfigLine() != string("EOF")) &&
404 (token = AC_cfg.GetValue()) != string("/FDM_CONFIG")) {
405 if (token == "METRICS") {
406 if (debug_lvl > 0) cout << fgcyan << "\n Reading Metrics" << fgdef << endl;
407 if (!ReadMetrics(&AC_cfg)) result = false;
408 } else if (token == "SLAVE") {
409 if (debug_lvl > 0) cout << fgcyan << "\n Reading Slave flight vehicle: " << fgdef
410 << AC_cfg.GetValue("NAME") << endl;
411 if (!ReadSlave(&AC_cfg)) result = false;
412 } else if (token == "AERODYNAMICS") {
413 if (debug_lvl > 0) cout << fgcyan << "\n Reading Aerodynamics" << fgdef << endl;
414 if (!ReadAerodynamics(&AC_cfg)) result = false;
415 } else if (token == "UNDERCARRIAGE") {
416 if (debug_lvl > 0) cout << fgcyan << "\n Reading Landing Gear" << fgdef << endl;
417 if (!ReadUndercarriage(&AC_cfg)) result = false;
418 } else if (token == "PROPULSION") {
419 if (debug_lvl > 0) cout << fgcyan << "\n Reading Propulsion" << fgdef << endl;
420 if (!ReadPropulsion(&AC_cfg)) result = false;
421 } else if (token == "FLIGHT_CONTROL") {
422 if (debug_lvl > 0) cout << fgcyan << "\n Reading Flight Control" << fgdef << endl;
423 if (!ReadFlightControls(&AC_cfg)) result = false;
424 } else if (token == "OUTPUT") {
425 if (debug_lvl > 0) cout << fgcyan << "\n Reading Output directives" << fgdef << endl;
426 if (!ReadOutput(&AC_cfg)) result = false;
435 << " FGFDMExec: Failed to load aircraft and/or engine model"
442 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
444 bool FGFDMExec::ReadPrologue(FGConfigFile* AC_cfg)
446 string token = AC_cfg->GetValue();
450 AircraftName = AC_cfg->GetValue("NAME");
451 Aircraft->SetAircraftName(AircraftName);
453 if (debug_lvl > 0) cout << underon << "Reading Aircraft Configuration File"
454 << underoff << ": " << highint << AircraftName << normint << endl;
455 scratch = AC_cfg->GetValue("VERSION").c_str();
457 CFGVersion = AC_cfg->GetValue("VERSION");
460 cout << " Version: " << highint << CFGVersion
462 if (CFGVersion != needed_cfg_version) {
463 cerr << endl << fgred << "YOU HAVE AN INCOMPATIBLE CFG FILE FOR THIS AIRCRAFT."
464 " RESULTS WILL BE UNPREDICTABLE !!" << endl;
465 cerr << "Current version needed is: " << needed_cfg_version << endl;
466 cerr << " You have version: " << CFGVersion << endl << fgdef << endl;
473 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
475 bool FGFDMExec::ReadSlave(FGConfigFile* AC_cfg)
477 // Add a new slaveData object to the slave FDM list
478 // Populate that slaveData element with a new FDMExec object
479 // Set the IsSlave flag for that FDMExec object
480 // Get the aircraft name
481 // set debug level to print out no additional data for slave objects
482 // Load the model given the aircraft name
483 // reset debug level to prior setting
485 int saved_debug_lvl = debug_lvl;
487 SlaveFDMList.push_back(new slaveData);
488 SlaveFDMList.back()->exec = new FGFDMExec();
489 SlaveFDMList.back()->exec->SetSlave();
491 string AircraftName = AC_cfg->GetValue("FILE");
494 SlaveFDMList.back()->exec->LoadModel("aircraft", "engine", AircraftName);
495 debug_lvl = saved_debug_lvl;
500 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
502 bool FGFDMExec::ReadPropulsion(FGConfigFile* AC_cfg)
504 if (!Propulsion->Load(AC_cfg)) {
505 cerr << " Propulsion not successfully loaded" << endl;
511 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
513 bool FGFDMExec::ReadFlightControls(FGConfigFile* AC_cfg)
515 if (!FCS->Load(AC_cfg)) {
516 cerr << " Flight Controls not successfully loaded" << endl;
522 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
524 bool FGFDMExec::ReadAerodynamics(FGConfigFile* AC_cfg)
526 if (!Aerodynamics->Load(AC_cfg)) {
527 cerr << " Aerodynamics not successfully loaded" << endl;
533 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
535 bool FGFDMExec::ReadUndercarriage(FGConfigFile* AC_cfg)
537 if (!GroundReactions->Load(AC_cfg)) {
538 cerr << " Ground Reactions not successfully loaded" << endl;
544 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
546 bool FGFDMExec::ReadMetrics(FGConfigFile* AC_cfg)
548 if (!Aircraft->Load(AC_cfg)) {
549 cerr << " Aircraft metrics not successfully loaded" << endl;
555 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
557 bool FGFDMExec::ReadOutput(FGConfigFile* AC_cfg)
559 if (!Output->Load(AC_cfg)) {
560 cerr << " Output not successfully loaded" << endl;
566 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
568 FGPropertyManager* FGFDMExec::GetPropertyManager(void) {
572 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
573 // The bitmasked value choices are as follows:
574 // unset: In this case (the default) JSBSim would only print
575 // out the normally expected messages, essentially echoing
576 // the config files as they are read. If the environment
577 // variable is not set, debug_lvl is set to 1 internally
578 // 0: This requests JSBSim not to output any messages
580 // 1: This value explicity requests the normal JSBSim
582 // 2: This value asks for a message to be printed out when
583 // a class is instantiated
584 // 4: When this value is set, a message is displayed when a
585 // FGModel object executes its Run() method
586 // 8: When this value is set, various runtime state variables
587 // are printed out periodically
588 // 16: When set various parameters are sanity checked and
589 // a message is printed out when they go out of bounds
591 void FGFDMExec::Debug(int from)
593 if (debug_lvl <= 0) return;
595 if (debug_lvl & 1) { // Standard console startup message output
596 if (from == 0) { // Constructor
597 cout << "\n\n " << highint << underon << "JSBSim Flight Dynamics Model v"
598 << JSBSim_version << underoff << normint << endl;
599 cout << halfint << " [cfg file spec v" << needed_cfg_version << "]\n\n";
600 cout << normint << "JSBSim startup beginning ...\n\n";
601 } else if (from == 3) {
602 cout << "\n\nJSBSim startup complete\n\n";
605 if (debug_lvl & 2 ) { // Instantiation/Destruction notification
606 if (from == 0) cout << "Instantiated: FGFDMExec" << endl;
607 if (from == 1) cout << "Destroyed: FGFDMExec" << endl;
609 if (debug_lvl & 4 ) { // Run() method entry print for FGModel-derived objects
611 cout << "================== Frame: " << Frame << " Time: "
612 << State->Getsim_time() << endl;
615 if (debug_lvl & 8 ) { // Runtime state variables
617 if (debug_lvl & 16) { // Sanity checking
619 if (debug_lvl & 64) {
620 if (from == 0) { // Constructor
621 cout << IdSrc << endl;
622 cout << IdHdr << endl;