FGJSBsim* mInterface;
};
+// FG uses a squared normalized magnitude for turbulence
+// this lookup table maps fg's severity levels
+// none(0), light(1/3), moderate(2/3) and severe(3/3)
+// to the POE table indexes 0, 3, 4 and 7
+class FGTurbulenceSeverityTable : public FGTable {
+public:
+ FGTurbulenceSeverityTable() : FGTable(4) {
+ *this << (0.0/9.0) << 0.0;
+ *this << (1.0/9.0) << 3.0;
+ *this << (4.0/9.0) << 4.0;
+ *this << (9.0/9.0) << 7.0;
+ }
+};
+
/******************************************************************************/
+std::map<std::string,int> FGJSBsim::TURBULENCE_TYPE_NAMES;
+
+static FGTurbulenceSeverityTable TurbulenceSeverityTable;
FGJSBsim::FGJSBsim( double dt )
: FGInterface(dt), got_wire(false)
{
bool result;
+ if( TURBULENCE_TYPE_NAMES.empty() ) {
+ TURBULENCE_TYPE_NAMES["ttNone"] = FGAtmosphere::ttNone;
+ TURBULENCE_TYPE_NAMES["ttStandard"] = FGAtmosphere::ttStandard;
+ TURBULENCE_TYPE_NAMES["ttBerndt"] = FGAtmosphere::ttBerndt;
+ TURBULENCE_TYPE_NAMES["ttCulp"] = FGAtmosphere::ttCulp;
+ TURBULENCE_TYPE_NAMES["ttMilspec"] = FGAtmosphere::ttMilspec;
+ TURBULENCE_TYPE_NAMES["ttTustin"] = FGAtmosphere::ttTustin;
+ }
+
// Set up the debugging level
// FIXME: this will not respond to
// runtime changes
temperature = fgGetNode("/environment/temperature-degc",true);
pressure = fgGetNode("/environment/pressure-inhg",true);
density = fgGetNode("/environment/density-slugft3",true);
+ ground_wind = fgGetNode("/environment/config/boundary/entry[0]/wind-speed-kt",true);
turbulence_gain = fgGetNode("/environment/turbulence/magnitude-norm",true);
turbulence_rate = fgGetNode("/environment/turbulence/rate-hz",true);
+ turbulence_model = fgGetNode("/environment/params/jsbsim-turbulence-model",true);
wind_from_north= fgGetNode("/environment/wind-from-north-fps",true);
wind_from_east = fgGetNode("/environment/wind-from-east-fps" ,true);
9.0/5.0*(temperature->getDoubleValue()+273.15) );
Atmosphere->SetExPressure(pressure->getDoubleValue()*70.726566);
Atmosphere->SetExDensity(density->getDoubleValue());
- Atmosphere->SetTurbType(FGAtmosphere::ttCulp);
- Atmosphere->SetTurbGain(turbulence_gain->getDoubleValue());
- Atmosphere->SetTurbRate(turbulence_rate->getDoubleValue());
-
+ // initialize to no turbulence, these values get set in the update loop
+ Atmosphere->SetTurbType(FGAtmosphere::ttNone);
+ Atmosphere->SetTurbGain(0.0);
+ Atmosphere->SetTurbRate(0.0);
+ Atmosphere->SetWindspeed20ft(0.0);
+ Atmosphere->SetProbabilityOfExceedence(0.0);
} else {
Atmosphere->UseInternal();
}
<< ", " << fdmex->GetAtmosphere()->GetDensity() );
// deprecate egt_degf for egt-degf to have consistent naming
-// TODO: raise log-level to ALERT in summer 2010,
-// remove alias in fall 2010,
-// remove this code in winter 2010
+// TODO: remove this by end of 2011
for (unsigned int i=0; i < Propulsion->GetNumEngines(); i++) {
SGPropertyNode * node = fgGetNode("engines/engine", i, true);
SGPropertyNode * egtn = node->getNode( "egt_degf" );
if( egtn != NULL ) {
- SG_LOG(SG_FLIGHT,SG_WARN,
+ SG_LOG(SG_FLIGHT,SG_ALERT,
"Aircraft uses deprecated node egt_degf. Please upgrade to egt-degf");
node->getNode("egt-degf", true)->alias( egtn );
}
/******************************************************************************/
+void FGJSBsim::suspend()
+{
+ fdmex->Hold();
+ SGSubsystem::suspend();
+}
+
+/******************************************************************************/
+
+void FGJSBsim::resume()
+{
+ fdmex->Resume();
+ SGSubsystem::resume();
+}
+
+/******************************************************************************/
+
// Convert from the FGInterface struct to the JSBsim generic_ struct
bool FGJSBsim::copy_to_JSBsim()
{
- double tmp;
unsigned int i;
// copy control positions into the JSBsim structure
Atmosphere->SetExPressure(pressure->getDoubleValue()*70.726566);
Atmosphere->SetExDensity(density->getDoubleValue());
- tmp = turbulence_gain->getDoubleValue();
- //Atmosphere->SetTurbGain(tmp * tmp * 100.0);
+ Atmosphere->SetTurbType((FGAtmosphere::tType)TURBULENCE_TYPE_NAMES[turbulence_model->getStringValue()]);
+ switch( Atmosphere->GetTurbType() ) {
+ case FGAtmosphere::ttStandard:
+ case FGAtmosphere::ttCulp:
+ case FGAtmosphere::ttBerndt: {
+ double tmp = turbulence_gain->getDoubleValue();
+ Atmosphere->SetTurbGain(tmp * tmp * 100.0);
+ Atmosphere->SetTurbRate(turbulence_rate->getDoubleValue());
+ break;
+ }
+ case FGAtmosphere::ttMilspec:
+ case FGAtmosphere::ttTustin: {
+ // milspec turbulence: 3=light, 4=moderate, 6=severe turbulence
+ // turbulence_gain normalized: 0: none, 1/3: light, 2/3: moderate, 3/3: severe
+ double tmp = turbulence_gain->getDoubleValue();
+ Atmosphere->SetProbabilityOfExceedence(
+ SGMiscd::roundToInt(TurbulenceSeverityTable.GetValue( tmp ) )
+ );
+ Atmosphere->SetWindspeed20ft(ground_wind->getDoubleValue());
+ break;
+ }
- tmp = turbulence_rate->getDoubleValue();
- //Atmosphere->SetTurbRate(tmp);
+ default:
+ break;
+ }
Atmosphere->SetWindNED( -wind_from_north->getDoubleValue(),
-wind_from_east->getDoubleValue(),
_set_Sea_level_radius( sea_level_radius_meters * SG_METER_TO_FEET );
fgic->SetSeaLevelRadiusFtIC( sea_level_radius_meters * SG_METER_TO_FEET );
fgic->SetLatitudeRadIC( lat_geoc );
- needTrim=true;
+
+ if (!fdmex->Holding())
+ needTrim=true;
}
update_ic();
fgic->SetLongitudeRadIC( lon );
- needTrim=true;
+
+ if (!fdmex->Holding())
+ needTrim=true;
}
// Sets the altitude above sea level.
"Terrain elevation: " << FGInterface::get_Runway_altitude() * SG_METER_TO_FEET );
fgic->SetLatitudeRadIC( lat_geoc );
fgic->SetAltitudeASLFtIC(alt);
- needTrim=true;
+
+ if (!fdmex->Holding())
+ needTrim=true;
}
void FGJSBsim::set_V_calibrated_kts(double vc)
update_ic();
fgic->SetVcalibratedKtsIC(vc);
- needTrim=true;
+
+ if (!fdmex->Holding())
+ needTrim=true;
}
void FGJSBsim::set_Mach_number(double mach)
update_ic();
fgic->SetMachIC(mach);
- needTrim=true;
+
+ if (!fdmex->Holding())
+ needTrim=true;
}
void FGJSBsim::set_Velocities_Local( double north, double east, double down )
fgic->SetVNorthFpsIC(north);
fgic->SetVEastFpsIC(east);
fgic->SetVDownFpsIC(down);
- needTrim=true;
+
+ if (!fdmex->Holding())
+ needTrim=true;
}
void FGJSBsim::set_Velocities_Wind_Body( double u, double v, double w)
fgic->SetUBodyFpsIC(u);
fgic->SetVBodyFpsIC(v);
fgic->SetWBodyFpsIC(w);
- needTrim=true;
+
+ if (!fdmex->Holding())
+ needTrim=true;
}
//Euler angles
fgic->SetThetaRadIC(theta);
fgic->SetPhiRadIC(phi);
fgic->SetPsiRadIC(psi);
- needTrim=true;
+
+ if (!fdmex->Holding())
+ needTrim=true;
}
//Flight Path
if( !(fabs(roc) > 1 && fabs(fgic->GetFlightPathAngleRadIC()) < 0.01) ) {
fgic->SetClimbRateFpsIC(roc);
}
- needTrim=true;
+
+ if (!fdmex->Holding())
+ needTrim=true;
}
void FGJSBsim::set_Gamma_vert_rad( double gamma)
if( !(fabs(gamma) < 0.01 && fabs(fgic->GetClimbRateFpsIC()) > 1) ) {
fgic->SetFlightPathAngleRadIC(gamma);
}
- needTrim=true;
+
+ if (!fdmex->Holding())
+ needTrim=true;
}
void FGJSBsim::init_gear(void )
projects / flightgear.git / blobdiff