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Backcourse ILS needle should move correct direction now.

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curt 2001-02-27 23:52:52 +00:00
parent 79cabb6a8a
commit 4a61945285
2 changed files with 18 additions and 8 deletions
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9
src/Autopilot/newauto.cxx
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@ -400,8 +400,13 @@ int FGAutopilot::run() {
// determine our current radial position relative to the
// navaid in "true" heading.
double cur_radial = current_radiostack->get_nav1_heading() +
current_radiostack->get_nav1_magvar();
double cur_radial = current_radiostack->get_nav1_heading();
if ( current_radiostack->get_nav1_loc() ) {
// ILS localizers radials are already "true" in our
// database
} else {
cur_radial += current_radiostack->get_nav1_magvar();
}
if ( current_radiostack->get_nav1_from_flag() ) {
cur_radial += 180.0;
while ( cur_radial >= 360.0 ) { cur_radial -= 360.0; }

17
src/Cockpit/radiostack.cxx
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@ -455,14 +455,19 @@ double FGRadioStack::get_nav1_heading_needle_deflection() const {
// cout << "Radial = " << nav1_radial
// << " Bearing = " << nav1_heading << endl;
while (r> 180.0) r-=360.0;
while (r<-180.0) r+=360.0;
if ( fabs(r) > 90.0 )
while ( r > 180.0 ) { r -= 360.0;}
while ( r < -180.0 ) { r += 360.0;}
if ( fabs(r) > 90.0 ) {
r = ( r<0.0 ? -r-180.0 : -r+180.0 );
if ( nav1_loc ) {
r = -r;
}
}
// According to Robin Peel, the ILS is 4x more sensitive than a vor
if ( nav1_loc ) r *= 4.0;
if ( r < -10.0 ) r = -10.0;
if ( r > 10.0 ) r = 10.0;
if ( nav1_loc ) { r *= 4.0; }
if ( r < -10.0 ) { r = -10.0; }
if ( r > 10.0 ) { r = 10.0; }
} else {
r = 0.0;
}