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Patches from Tony Peden:

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Attached are patches for adding the command line options to set initial
glideslope and climb rate. This was really easy to do as all the pieces
were in place.  It works well with JSBSim because the trimming routine
finds the right throttle and elevator settings. It should work with
LaRCsim as well, but it has no trimming routine so there will be some
dynamics at startup.  I don't know what YASim will do.
This commit is contained in:
david 2002-02-18 19:18:51 +00:00
parent 93c69c4bc3
commit 6c978b02f8
3 changed files with 22 additions and 5 deletions
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11
src/FDM/JSBSim.cxx
View file

@ -612,7 +612,12 @@ void FGJSBsim::set_Climb_Rate( double roc) {
SG_LOG(SG_FLIGHT,SG_INFO, "FGJSBsim::set_Climb_Rate: " << roc );
update_ic();
fgic->SetClimbRateFpsIC(roc);
//since both climb rate and flight path angle are set in the FG
//startup sequence, something is needed to keep one from cancelling
//out the other.
if( !(fabs(roc) > 1 && fabs(fgic->GetFlightPathAngleRadIC()) < 0.01) ) {
fgic->SetClimbRateFpsIC(roc);
}
needTrim=true;
}
@ -620,7 +625,9 @@ void FGJSBsim::set_Gamma_vert_rad( double gamma) {
SG_LOG(SG_FLIGHT,SG_INFO, "FGJSBsim::set_Gamma_vert_rad: " << gamma );
update_ic();
fgic->SetFlightPathAngleRadIC(gamma);
if( !(fabs(gamma) < 0.01 && fabs(fgic->GetClimbRateFpsIC()) > 1) ) {
fgic->SetFlightPathAngleRadIC(gamma);
}
needTrim=true;
}

9
src/FDM/flight.cxx
View file

@ -351,7 +351,11 @@ FGInterface::bind ()
// Climb and slip (read-only)
fgTie("/velocities/vertical-speed-fps", this,
&FGInterface::get_Climb_Rate); // read-only
&FGInterface::get_Climb_Rate,
&FGInterface::set_Climb_Rate );
fgTie("/velocities/glideslope", this,
&FGInterface::get_Gamma_vert_rad,
&FGInterface::set_Gamma_vert_rad );
fgTie("/velocities/side-slip-rad", this,
&FGInterface::get_Beta); // read-only
fgTie("/velocities/side-slip-deg", this,
@ -360,8 +364,6 @@ FGInterface::bind ()
&FGInterface::get_Alpha_deg); // read-only
fgTie("/accelerations/nlf", this,
&FGInterface::get_Nlf); // read-only
}
@ -395,6 +397,7 @@ FGInterface::unbind ()
fgUntie("/velocities/vBody-fps");
fgUntie("/velocities/wBody-fps");
fgUntie("/velocities/vertical-speed-fps");
fgUntie("/velocities/glideslope");
fgUntie("/velocities/side-slip-rad");
fgUntie("/velocities/side-slip-deg");
fgUntie("/velocities/alpha-deg");

7
src/Main/options.cxx
View file

@ -666,6 +666,11 @@ parse_option (const string& arg)
fgSetDouble("/orientation/roll-deg", atof(arg.substr(7)));
} else if ( arg.find( "--pitch=" ) == 0 ) {
fgSetDouble("/orientation/pitch-deg", atof(arg.substr(8)));
} else if ( arg.find( "--glideslope=" ) == 0 ) {
fgSetDouble("/velocities/glideslope", atof(arg.substr(13))
*SG_DEGREES_TO_RADIANS);
} else if ( arg.find( "--roc=" ) == 0 ) {
fgSetDouble("/velocities/vertical-speed-fps", atof(arg.substr(6))/60);
} else if ( arg.find( "--fg-root=" ) == 0 ) {
globals->set_fg_root(arg.substr( 10 ));
} else if ( arg.find( "--fg-scenery=" ) == 0 ) {
@ -1181,6 +1186,8 @@ fgUsage ()
<< " (in feet unless --units-meters specified)" << endl
<< " --vc=knots Specify initial airspeed" << endl
<< " --mach=num Specify initial mach number" << endl
<< " --glideslope=degreees Specify flight path angle (can be positive)" << endl
<< " --roc=fpm Specify initial climb rate (can be negative)" << endl
<< endl
<< "Rendering Options:" << endl