1 // navrecord.hxx -- generic vor/dme/ndb class
3 // Written by Curtis Olson, started May 2004.
5 // Copyright (C) 2004 Curtis L. Olson - http://www.flightgear.org/~curt
7 // This program is free software; you can redistribute it and/or
8 // modify it under the terms of the GNU General Public License as
9 // published by the Free Software Foundation; either version 2 of the
10 // License, or (at your option) any later version.
12 // This program is distributed in the hope that it will be useful, but
13 // WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 // General Public License for more details.
17 // You should have received a copy of the GNU General Public License
18 // along with this program; if not, write to the Free Software
19 // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 #ifndef _FG_NAVRECORD_HXX
25 #define _FG_NAVRECORD_HXX
29 #include <simgear/compiler.h>
30 #include <simgear/math/sg_geodesy.hxx>
31 #include <simgear/misc/sgstream.hxx>
32 #include <simgear/magvar/magvar.hxx>
33 #include <simgear/timing/sg_time.hxx>
35 #ifdef SG_HAVE_STD_INCLUDES
37 #elif defined( __BORLANDC__ ) || (__APPLE__)
43 SG_USING_STD(istream);
46 #define FG_NAV_DEFAULT_RANGE 50 // nm
47 #define FG_LOC_DEFAULT_RANGE 18 // nm
48 #define FG_DME_DEFAULT_RANGE 50 // nm
49 #define FG_NAV_MAX_RANGE 300 // nm
51 // Shield the rest of FG from possibly changing details of Robins navaid type numbering system.
52 // Currently only the GPS code uses this - extra types (LOC, GS etc) may need to be added
53 // should other FG code choose to use this.
64 double lon, lat; // location in geodetic coords (degrees)
66 double x, y, z; // location in cartesian coords (earth centered)
69 double multiuse; // can be slaved variation of VOR
70 // (degrees) or localizer heading
71 // (degrees) or dme bias (nm)
73 string ident; // navaid ident
74 string name; // verbose name in nav database
75 string apt_id; // corresponding airport id
78 bool serviceable; // for failure modeling
79 string trans_ident; // for failure modeling
83 inline FGNavRecord(void);
84 inline ~FGNavRecord(void) {}
86 inline int get_type() const { return type; }
87 inline fg_nav_types get_fg_type() const;
88 inline double get_lon() const { return lon; } // degrees
89 inline void set_lon( double l ) { lon = l; } // degrees
90 inline double get_lat() const { return lat; } // degrees
91 inline void set_lat( double l ) { lat = l; } // degrees
92 inline double get_elev_ft() const { return elev_ft; }
93 inline void set_elev_ft( double e ) { elev_ft = e; }
94 inline double get_x() const { return x; }
95 inline double get_y() const { return y; }
96 inline double get_z() const { return z; }
97 inline int get_freq() const { return freq; }
98 inline int get_range() const { return range; }
99 inline double get_multiuse() const { return multiuse; }
100 inline void set_multiuse( double m ) { multiuse = m; }
101 inline const char *get_ident() const { return ident.c_str(); }
102 inline const string& get_name() const { return name; }
103 inline const string& get_apt_id() const { return apt_id; }
104 inline bool get_serviceable() const { return serviceable; }
105 inline const char *get_trans_ident() const { return trans_ident.c_str(); }
107 friend istream& operator>> ( istream&, FGNavRecord& );
112 FGNavRecord::FGNavRecord(void) :
116 x(0.0), y(0.0), z(0.0),
129 inline fg_nav_types FGNavRecord::get_fg_type() const {
131 case 2: return(FG_NAV_NDB);
132 case 3: return(FG_NAV_VOR);
133 case 4: return(FG_NAV_ILS);
134 default: return(FG_NAV_ANY);
140 operator >> ( istream& in, FGNavRecord& n )
144 if ( n.type == 99 ) {
145 return in >> skipeol;
148 in >> n.lat >> n.lon >> n.elev_ft >> n.freq >> n.multiuse
150 getline( in, n.name );
152 // silently multiply adf frequencies by 100 so that adf
153 // vs. nav/loc frequency lookups can use the same code.
158 // Remove any leading spaces before the name
159 while ( n.name.substr(0,1) == " " ) {
160 n.name = n.name.erase(0,1);
163 if ( n.type >= 4 && n.type <= 9 ) {
164 // these types are always associated with an airport id
165 string::size_type pos = n.name.find(" ");
166 n.apt_id = n.name.substr(0, pos);
169 // assign default ranges
170 if ( n.type == 2 || n.type == 3 ) {
171 n.range = FG_NAV_DEFAULT_RANGE;
172 } else if ( n.type == 4 || n.type == 5 || n.type == 6 ) {
173 n.range = FG_LOC_DEFAULT_RANGE;
174 } else if ( n.type == 12 ) {
175 n.range = FG_DME_DEFAULT_RANGE;
177 n.range = FG_LOC_DEFAULT_RANGE;
180 // transmitted ident (same as ident unless modeling a fault)
181 n.trans_ident = n.ident;
183 // generate cartesian coordinates
184 Point3D geod( n.lon * SGD_DEGREES_TO_RADIANS,
185 n.lat * SGD_DEGREES_TO_RADIANS,
186 n.elev_ft * SG_FEET_TO_METER );
187 Point3D cart = sgGeodToCart( geod );
195 class FGTACANRecord {
202 inline FGTACANRecord(void);
203 inline ~FGTACANRecord(void) {}
205 inline const string& get_channel() const { return channel; }
206 inline int get_freq() const { return freq; }
207 friend istream& operator>> ( istream&, FGTACANRecord& );
212 FGTACANRecord::FGTACANRecord(void) :
220 operator >> ( istream& in, FGTACANRecord& n )
222 in >> n.channel >> n.freq ;
223 //getline( in, n.name );
227 #endif // _FG_NAVRECORD_HXX