Method LoadScript

src/FDM/JSBSim/input_output/FGScript.cpp:91–364

//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

bool FGScript::LoadScript(const SGPath& script, double default_dT,
                          const SGPath& initfile)
{
  SGPath initialize;
  string aircraft="", prop_name="";
  string notifyPropertyName="";
  Element *element=0, *run_element=0, *event_element=0;
  Element *set_element=0;
  Element *notify_element = 0L, *notify_property_element = 0L;
  double dt = 0.0, value = 0.0;
  FGCondition *newCondition;

  FGXMLFileRead XMLFileRead;
  Element* document = XMLFileRead.LoadXMLDocument(script);

  if (!document) {
    cerr << "File: " << script << " could not be loaded." << endl;
    return false;
  }

  if (document->GetName() != string("runscript")) {
    cerr << "File: " << script << " is not a script file" << endl;
    return false;
  }

  ScriptName = document->GetAttributeValue("name");

 // First, find "run" element and set delta T

  run_element = document->FindElement("run");

  if (!run_element) {
    cerr << "No \"run\" element found in script." << endl;
    return false;
  }

  // Set sim timing

  if (run_element->HasAttribute("start"))
    StartTime = run_element->GetAttributeValueAsNumber("start");
  else
    StartTime = 0.0;
  FDMExec->Setsim_time(StartTime);
  if (run_element->HasAttribute("end")) {
    EndTime   = run_element->GetAttributeValueAsNumber("end");
  } else {
    cerr << "An end time (duration) for the script must be specified in the script <run> element." << endl;
    return false;
  }

  if (default_dT == 0.0)
    dt = run_element->GetAttributeValueAsNumber("dt");
  else {
    dt = default_dT;
    cout << endl << "Overriding simulation step size from the command line. New step size is: "
         << default_dT << " seconds (" << 1/default_dT << " Hz)" << endl << endl;
  }