fgTie("/radios/nav1/dme/distance", this, &FGRadioStack::get_nav1_dme_dist);
fgTie("/radios/nav1/dme/in-range", this,
&FGRadioStack::get_nav1_dme_inrange);
+ fgTie("/radios/nav1/heading-needle-deflection", this,
+ &FGRadioStack::get_nav1_heading_needle_deflection);
+ fgTie("/radios/nav1/gs-needle-deflection", this,
+ &FGRadioStack::get_nav1_gs_needle_deflection);
// User inputs
fgTie("/radios/nav2/frequencies/selected", this,
fgTie("/radios/nav2/dme/distance", this, &FGRadioStack::get_nav2_dme_dist);
fgTie("/radios/nav2/dme/in-range", this,
&FGRadioStack::get_nav2_dme_inrange);
+ fgTie("/radios/nav2/heading-needle-deflection", this,
+ &FGRadioStack::get_nav2_heading_needle_deflection);
+ fgTie("/radios/nav2/gs-needle-deflection", this,
+ &FGRadioStack::get_nav2_gs_needle_deflection);
// User inputs
fgTie("/radios/adf/frequencies/selected", this,
fgUntie("/radios/nav1/in-range");
fgUntie("/radios/nav1/dme/distance");
fgUntie("/radios/nav1/dme/in-range");
+ fgUntie("/radios/nav1/heading-needle-deflection");
+ fgUntie("/radios/nav1/gs-needle-deflection");
fgUntie("/radios/nav2/frequencies/selected");
fgUntie("/radios/nav2/frequencies/standby");
fgUntie("/radios/nav2/in-range");
fgUntie("/radios/nav2/dme/distance");
fgUntie("/radios/nav2/dme/in-range");
+ fgUntie("/radios/nav2/heading-needle-deflection");
+ fgUntie("/radios/nav2/gs-needle-deflection");
fgUntie("/radios/adf/frequencies/selected");
fgUntie("/radios/adf/frequencies/standby");
geo_inverse_wgs_84( elev, lat * RAD_TO_DEG, lon * RAD_TO_DEG,
nav1_loclat, nav1_loclon,
&az1, &az2, &s );
- cout << "az1 = " << az1 << " magvar = " << nav1_magvar << endl;
+ // cout << "az1 = " << az1 << " magvar = " << nav1_magvar << endl;
nav1_heading = az1 - nav1_magvar;
// Alex: nav1_heading = - (az1 - FGBFI::getMagVar() / RAD_TO_DEG);
}
+// return the amount of heading needle deflection, returns a value
+// clamped to the range of ( -10 , 10 )
+double FGRadioStack::get_nav1_heading_needle_deflection() const {
+ double r;
+
+ if ( nav1_inrange ) {
+ r = nav1_heading - nav1_radial;
+ // 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 ) {
+ 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; }
+ } else {
+ r = 0.0;
+ }
+
+ return r;
+}
+
+// return the amount of heading needle deflection, returns a value
+// clamped to the range of ( -10 , 10 )
+double FGRadioStack::get_nav2_heading_needle_deflection() const {
+ double r;
+
+ if ( nav2_inrange ) {
+ r = nav2_heading - nav2_radial;
+ // cout << "Radial = " << nav2_radial
+ // << " Bearing = " << nav2_heading << endl;
+
+ 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 );
+ // According to Robin Peel, the ILS is 4x more sensitive than a vor
+ if ( nav2_loc ) r *= 4.0;
+ if ( r < -10.0 ) r = -10.0;
+ if ( r > 10.0 ) r = 10.0;
+ } else {
+ r = 0.0;
+ }
+
+ return r;
+}
+
+// return the amount of glide slope needle deflection (.i.e. the
+// number of degrees we are off the glide slope * 5.0
+double FGRadioStack::get_nav1_gs_needle_deflection() const {
+ if ( nav1_inrange && nav1_has_gs ) {
+ double x = nav1_gs_dist;
+ double y = (FGBFI::getAltitude() - nav1_elev) * FEET_TO_METER;
+ double angle = atan2( y, x ) * RAD_TO_DEG;
+ return (nav1_target_gs - angle) * 5.0;
+ } else {
+ return 0.0;
+ }
+}
+
+
+// return the amount of glide slope needle deflection (.i.e. the
+// number of degrees we are off the glide slope * 5.0
+double FGRadioStack::get_nav2_gs_needle_deflection() const {
+ if ( nav2_inrange && nav2_has_gs ) {
+ double x = nav2_gs_dist;
+ double y = (FGBFI::getAltitude() - nav2_elev) * FEET_TO_METER;
+ double angle = atan2( y, x ) * RAD_TO_DEG;
+ return (nav2_target_gs - angle) * 5.0;
+ } else {
+ return 0.0;
+ }
+}
+
+
/**
* Return true if the NAV1 TO flag should be active.
*/
if (nav1_inrange) {
double offset = fabs(nav1_heading - nav1_radial);
if (nav1_loc)
- return (offset <= 8.0 || offset >= 352.0);
+ return true;
else
- return (offset <= 20.0 || offset >= 340.0);
+ return (offset <= 90.0 || offset >= 270.0);
} else {
return false;
}
if (nav1_inrange) {
double offset = fabs(nav1_heading - nav1_radial);
if (nav1_loc)
- return (offset >= 172.0 && offset <= 188.0);
+ return false;
else
- return (offset >= 160.0 && offset <= 200.0);
+ return (offset > 90.0 && offset < 270.0);
} else {
return false;
}
if (nav2_inrange) {
double offset = fabs(nav2_heading - nav2_radial);
if (nav2_loc)
- return (offset <= 8.0 || offset >= 352.0);
+ return true;
else
- return (offset <= 20.0 || offset >= 340.0);
+ return (offset <= 90.0 || offset >= 270.0);
} else {
return false;
}
if (nav2_inrange) {
double offset = fabs(nav2_heading - nav2_radial);
if (nav2_loc)
- return (offset >= 172.0 && offset <= 188.0);
+ return false;
else
- return (offset >= 160.0 && offset <= 200.0);
+ return (offset > 90.0 && offset < 270.0);
} else {
return false;
}
}
-