//
// Written by Curtis Olson, started April 2000.
//
-// Copyright (C) 2000 Curtis L. Olson - curt@flightgear.org
+// Copyright (C) 2000 Curtis L. Olson - http://www.flightgear.org/~curt
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
class FGNav {
-
- char type;
+ int type;
double lon, lat;
double elev_ft;
double x, y, z;
int freq;
- int range;
- bool has_dme;
- string ident; // to avoid a core dump with corrupt data
+ double range;
+ string ident;
double magvar; // magvar from true north (negative = W)
+ string name;
// for failure modeling
+ bool serviceable;
string trans_ident; // transmitted ident
- bool nav_failed; // nav failed?
- bool dme_failed; // dme failed?
public:
- inline FGNav(void);
- inline ~FGNav(void) {}
+ inline FGNav();
+ inline FGNav( int _type, double _lat, double _lon, double _elev_ft,
+ int _freq, double _range, double _magvar,
+ const string& _ident, const string& _name,
+ bool _serviceable );
+ inline ~FGNav() {}
- inline char get_type() const { return type; }
+ inline int get_type() const { return type; }
inline double get_lon() const { return lon; }
inline double get_lat() const { return lat; }
inline double get_elev_ft() const { return elev_ft; }
inline double get_y() const { return y; }
inline double get_z() const { return z; }
inline int get_freq() const { return freq; }
- inline int get_range() const { return range; }
- inline bool get_has_dme() const { return has_dme; }
+ inline double get_range() const { return range; }
+ // inline bool get_has_dme() const { return has_dme; }
inline const char *get_ident() { return ident.c_str(); }
- inline string get_trans_ident() { return trans_ident; }
- inline double get_magvar () const { return magvar; }
-
- friend istream& operator>> ( istream&, FGNav& );
+ inline const string& get_trans_ident() { return trans_ident; }
+ inline double get_magvar() const { return magvar; }
+ inline const string& get_name() { return name; }
};
inline
-FGNav::FGNav(void) :
+FGNav::FGNav() :
type(0),
lon(0.0), lat(0.0),
elev_ft(0.0),
x(0.0), y(0.0), z(0.0),
freq(0),
- range(0),
- has_dme(false),
+ range(0.0),
+ // has_dme(false),
ident(""),
magvar(0.0),
- trans_ident(""),
- nav_failed(false),
- dme_failed(false)
+ name(""),
+ serviceable(true),
+ trans_ident("")
{
}
-inline istream&
-operator >> ( istream& in, FGNav& n )
+inline
+FGNav::FGNav( int _type, double _lat, double _lon, double _elev_ft,
+ int _freq, double _range, double _magvar,
+ const string& _ident, const string& _name,
+ bool _serviceable ) :
+ type(0),
+ lon(0.0), lat(0.0),
+ elev_ft(0.0),
+ x(0.0), y(0.0), z(0.0),
+ freq(0),
+ range(0.0),
+ // has_dme(false),
+ ident(""),
+ magvar(0.0),
+ name(""),
+ serviceable(true),
+ trans_ident("")
{
- double f;
- char c /* , magvar_dir */ ;
- string magvar_s;
-
- static bool first_time = true;
- static double julian_date = 0;
- static const double MJD0 = 2415020.0;
- if ( first_time ) {
- julian_date = sgTimeCurrentMJD(0,0) + MJD0;
- first_time = false;
- }
-
- in >> n.type;
-
- if ( n.type == '[' )
- return in >> skipeol;
-
- in >> n.lat >> n.lon >> n.elev_ft >> f >> n.range
- >> c >> n.ident >> magvar_s;
-
- n.freq = (int)(f*100.0 + 0.5);
- if ( c == 'Y' ) {
- n.has_dme = true;
- } else {
- n.has_dme = false;
- }
-
- // Calculate the magvar from true north.
- // cout << "Calculating magvar for navaid " << n.ident << endl;
- if (magvar_s == "XXX") {
- // default to mag var as of 1990-01-01 (Julian 2447892.5)
- // cout << "lat = " << n.lat << " lon = " << n.lon << " elev_ft = "
- // << n.elev_ft << " JD = "
- // << julian_date << endl;
- n.magvar = sgGetMagVar( n.lon * SGD_DEGREES_TO_RADIANS,
- n.lat * SGD_DEGREES_TO_RADIANS,
- n.elev_ft * SG_FEET_TO_METER,
- julian_date )
- * SGD_RADIANS_TO_DEGREES;
- // cout << "Default variation at " << n.lon << ',' << n.lat
- // << " is " << var << endl;
-#if 0
- // I don't know what this is for - CLO 1 Feb 2001
- if (var - int(var) >= 0.5)
- n.magvar = int(var) + 1;
- else if (var - int(var) <= -0.5)
- n.magvar = int(var) - 1;
- else
- n.magvar = int(var);
-#endif
- // cout << "Defaulted to magvar of " << n.magvar << endl;
- } else {
- char direction;
- int var;
- sscanf(magvar_s.c_str(), "%d%c", &var, &direction);
- n.magvar = var;
- if (direction == 'W')
- n.magvar = -n.magvar;
- // cout << "Explicit magvar of " << n.magvar << endl;
- }
- // cout << n.ident << " " << n.magvar << endl;
+ type = _type;
+ lat = _lat;
+ lon = _lon;
+ elev_ft = _elev_ft;
+ freq = _freq;
+ range = _range;
+ magvar = _magvar;
+ ident = _ident;
+ name = _name;
+ trans_ident = _ident;
+ serviceable = _serviceable;
// generate cartesian coordinates
- Point3D geod( n.lon * SGD_DEGREES_TO_RADIANS, n.lat * SGD_DEGREES_TO_RADIANS, n.elev_ft * SG_FEET_TO_METER );
+ Point3D geod( lon * SGD_DEGREES_TO_RADIANS,
+ lat * SGD_DEGREES_TO_RADIANS,
+ elev_ft * SG_FEET_TO_METER );
Point3D cart = sgGeodToCart( geod );
- n.x = cart.x();
- n.y = cart.y();
- n.z = cart.z();
-
- n.trans_ident = n.ident;
- n.nav_failed = n.dme_failed = false;
-
- return in >> skipeol;
+ x = cart.x();
+ y = cart.y();
+ z = cart.z();
}
projects / flightgear.git / blobdiff