cont = FGColumnVector3( contact[0], contact[1], contact[2] );
return agl;
}
+
+ virtual double GetTerrainGeoCentRadius(double t, const FGLocation& l) const {
+ double loc_cart[3] = { l(eX), l(eY), l(eZ) };
+ double contact[3], normal[3], vel[3], angularVel[3], agl = 0;
+ mInterface->get_agl_ft(t, loc_cart, SG_METER_TO_FEET*2, contact, normal,
+ vel, angularVel, &agl);
+ return sqrt(contact[0]*contact[0]+contact[1]*contact[1]+contact[2]*contact[2]);
+ }
+
+ virtual double GetSeaLevelRadius(const FGLocation& l) const {
+ double seaLevelRadius, latGeoc;
+
+ sgGeodToGeoc(l.GetGeodLatitudeRad(), l.GetGeodAltitude(),
+ &seaLevelRadius, &latGeoc);
+
+ return seaLevelRadius * SG_METER_TO_FEET;
+ }
+
+ virtual void SetTerrainGeoCentRadius(double radius) {}
+ virtual void SetSeaLevelRadius(double radius) {}
private:
FGJSBsim* mInterface;
};
-wind_from_east->getDoubleValue(),
-wind_from_down->getDoubleValue() );
- //Atmosphere->SetExTemperature(get_Static_temperature());
- //Atmosphere->SetExPressure(get_Static_pressure());
- //Atmosphere->SetExDensity(get_Density());
SG_LOG(SG_FLIGHT,SG_INFO,"T,p,rho: " << Atmosphere->GetTemperature()
<< ", " << Atmosphere->GetPressure()
<< ", " << Atmosphere->GetDensity() );
-// deprecate egt_degf for egt-degf to have consistent naming
-// TODO: remove this for 2.6.0
- 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_ALERT,
- "*** Aircraft uses deprecated and now unsupported node egt_degf. Please upgrade to egt-degf");
- }
- }
-// end of egt_degf deprecation patch
-
FCS->SetDfPos( ofNorm, globals->get_controls()->get_flaps() );
needTrim = startup_trim->getBoolValue();
common_init();
- fgic->SetSeaLevelRadiusFtIC( get_Sea_level_radius() );
copy_to_JSBsim();
fdmex->RunIC(); //loop JSBSim once w/o integrating
} // end FGEngine code block
}
-
- Propagate->SetSeaLevelRadius( get_Sea_level_radius() );
-
Atmosphere->SetTemperature(temperature->getDoubleValue(), get_Altitude(), FGAtmosphere::eCelsius);
Atmosphere->SetPressureSL(pressureSL->getDoubleValue(), FGAtmosphere::eInchesHg);
fgic->SetSeaLevelRadiusFtIC( sea_level_radius_ft );
fgic->SetLatitudeRadIC( lat_geoc );
}
- else {
- Propagate->SetSeaLevelRadius( sea_level_radius_ft );
+ else
Propagate->SetLatitude(lat_geoc);
- FGInterface::set_Latitude(lat);
- }
+
+ FGInterface::set_Latitude(lat);
}
if (needTrim)
fgic->SetLongitudeRadIC(lon);
- else {
+ else
Propagate->SetLongitude(lon);
- FGInterface::set_Longitude(lon);
- }
+
+ FGInterface::set_Longitude(lon);
}
// Sets the altitude above sea level.
if (needTrim)
fgic->SetAltitudeASLFtIC(alt);
- else {
+ else
Propagate->SetAltitudeASL(alt);
- FGInterface::set_Altitude(alt);
- }
+
+ FGInterface::set_Altitude(alt);
}
void FGJSBsim::set_V_calibrated_kts(double vc)
if (needTrim)
fgic->SetVcalibratedKtsIC(vc);
else {
- double mach = getMachFromVcas(vc);
+ double p=pressure->getDoubleValue();
+ double psl=fdmex->GetAtmosphere()->GetPressureSL();
+ double rhosl=fdmex->GetAtmosphere()->GetDensitySL();
+ double mach = FGJSBBase::MachFromVcalibrated(vc, p, psl, rhosl);
double temp = 1.8*(temperature->getDoubleValue()+273.15);
double soundSpeed = sqrt(1.4*1716.0*temp);
FGColumnVector3 vUVW = Propagate->GetUVW();
Propagate->SetUVW(1, vUVW(1));
Propagate->SetUVW(2, vUVW(2));
Propagate->SetUVW(3, vUVW(3));
-
- FGInterface::set_V_calibrated_kts(vc);
}
+
+ FGInterface::set_V_calibrated_kts(vc);
}
void FGJSBsim::set_Mach_number(double mach)
Propagate->SetUVW(1, vUVW(1));
Propagate->SetUVW(2, vUVW(2));
Propagate->SetUVW(3, vUVW(3));
-
- FGInterface::set_Mach_number(mach);
}
+
+ FGInterface::set_Mach_number(mach);
}
void FGJSBsim::set_Velocities_Local( double north, double east, double down )
Propagate->SetUVW(1, vUVW(1));
Propagate->SetUVW(2, vUVW(2));
Propagate->SetUVW(3, vUVW(3));
-
- FGInterface::set_Velocities_Local(north, east, down);
}
+
+ FGInterface::set_Velocities_Local(north, east, down);
}
void FGJSBsim::set_Velocities_Wind_Body( double u, double v, double w)
Propagate->SetUVW(1, u);
Propagate->SetUVW(2, v);
Propagate->SetUVW(3, w);
-
- FGInterface::set_Velocities_Wind_Body(u, v, w);
}
+
+ FGInterface::set_Velocities_Wind_Body(u, v, w);
}
//Euler angles
FGMatrix33 Ti2b = Tl2b*Propagate->GetTi2l();
FGQuaternion Qi = Ti2b.GetQuaternion();
Propagate->SetInertialOrientation(Qi);
-
- FGInterface::set_Euler_Angles(phi, theta, psi);
}
+
+ FGInterface::set_Euler_Angles(phi, theta, psi);
}
//Flight Path
Propagate->SetUVW(1, vUVW(1));
Propagate->SetUVW(2, vUVW(2));
Propagate->SetUVW(3, vUVW(3));
-
- FGInterface::set_Climb_Rate(roc);
}
+
+ FGInterface::set_Climb_Rate(roc);
}
}
Propagate->SetUVW(1, vUVW(1));
Propagate->SetUVW(2, vUVW(2));
Propagate->SetUVW(3, vUVW(3));
-
- FGInterface::set_Gamma_vert_rad(gamma);
- }
- }
-}
-// Reverse the VCAS formula to obtain the corresponding Mach number. For subsonic
-// speeds, the reversed formula has a closed form. For supersonic speeds, the
-// formula is reversed by the Newton-Raphson algorithm.
-
-double FGJSBsim::getMachFromVcas(double vcas)
-{
- double p=pressure->getDoubleValue();
- double psl=fdmex->GetAtmosphere()->GetPressureSL();
- double rhosl=fdmex->GetAtmosphere()->GetDensitySL();
-
- double pt = p + psl*(pow(1+vcas*vcas*rhosl/(7.0*psl),3.5)-1);
-
- if (pt/p < 1.89293)
- return sqrt(5.0*(pow(pt/p, 0.2857143) -1)); // Mach < 1
- else {
- // Mach >= 1
- double mach = sqrt(0.77666*pt/p); // Initial guess is based on a quadratic approximation of the Rayleigh formula
- double delta = 1.;
- double target = pt/(166.92158*p);
- int iter = 0;
-
- // Find the root with Newton-Raphson. Since the differential is never zero,
- // the function is monotonic and has only one root with a multiplicity of one.
- // Convergence is certain.
- while (delta > 1E-5 && iter < 10) {
- double m2 = mach*mach; // Mach^2
- double m6 = m2*m2*m2; // Mach^6
- delta = mach*m6/pow(7.0*m2-1.0,2.5) - target;
- double diff = 7.0*m6*(2.0*m2-1)/pow(7.0*m2-1.0,3.5); // Never zero when Mach >= 1
- mach -= delta/diff;
- iter++;
}
- return mach;
+ FGInterface::set_Gamma_vert_rad(gamma);
}
}
projects / flightgear.git / blobdiff