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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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 #include <simgear/structure/ssgSharedPtr.hxx>
36 #include <simgear/structure/SGReferenced.hxx>
38 #ifdef SG_HAVE_STD_INCLUDES
40 #elif defined( __BORLANDC__ ) || (__APPLE__)
46 SG_USING_STD(istream);
49 #define FG_NAV_DEFAULT_RANGE 50 // nm
50 #define FG_LOC_DEFAULT_RANGE 18 // nm
51 #define FG_DME_DEFAULT_RANGE 50 // nm
52 #define FG_NAV_MAX_RANGE 300 // nm
54 // Shield the rest of FG from possibly changing details of Robins navaid type numbering system.
55 // Currently only the GPS code uses this - extra types (LOC, GS etc) may need to be added
56 // should other FG code choose to use this.
64 class FGNavRecord : public SGReferenced {
67 SGGeod pos; // location in geodetic coords (degrees)
68 SGVec3d cart; // location in cartesian coords (earth centered)
71 double multiuse; // can be slaved variation of VOR
72 // (degrees) or localizer heading
73 // (degrees) or dme bias (nm)
75 string ident; // navaid ident
76 string name; // verbose name in nav database
77 string apt_id; // corresponding airport id
80 bool serviceable; // for failure modeling
81 string trans_ident; // for failure modeling
85 inline FGNavRecord(void);
86 inline ~FGNavRecord(void) {}
88 inline int get_type() const { return type; }
89 inline fg_nav_types get_fg_type() const;
90 inline double get_lon() const { return pos.getLongitudeDeg(); } // degrees
91 inline void set_lon( double l ) { pos.setLongitudeDeg(l); } // degrees
92 inline double get_lat() const { return pos.getLatitudeDeg(); } // degrees
93 inline void set_lat( double l ) { pos.setLatitudeDeg(l); } // degrees
94 inline double get_elev_ft() const { return pos.getElevationFt(); }
95 inline void set_elev_ft( double e ) { pos.setElevationFt(e); }
96 const SGGeod& get_pos() const { return pos; }
97 const SGVec3d& get_cart() const { return cart; }
98 inline int get_freq() const { return freq; }
99 inline int get_range() const { return range; }
100 inline double get_multiuse() const { return multiuse; }
101 inline void set_multiuse( double m ) { multiuse = m; }
102 inline const char *get_ident() const { return ident.c_str(); }
103 inline const string& get_name() const { return name; }
104 inline const string& get_apt_id() const { return apt_id; }
105 inline bool get_serviceable() const { return serviceable; }
106 inline const char *get_trans_ident() const { return trans_ident.c_str(); }
108 friend istream& operator>> ( istream&, FGNavRecord& );
113 FGNavRecord::FGNavRecord(void) :
115 pos(SGGeod::fromDeg(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 double lat, lon, elev_ft;
149 in >> lat >> lon >> elev_ft >> n.freq >> n.range >> n.multiuse
151 n.pos.setLatitudeDeg(lat);
152 n.pos.setLongitudeDeg(lon);
153 n.pos.setElevationFt(elev_ft);
154 getline( in, n.name );
156 // silently multiply adf frequencies by 100 so that adf
157 // vs. nav/loc frequency lookups can use the same code.
162 // Remove any leading spaces before the name
163 while ( n.name.substr(0,1) == " " ) {
164 n.name = n.name.erase(0,1);
167 if ( n.type >= 4 && n.type <= 9 ) {
168 // these types are always associated with an airport id
169 string::size_type pos = n.name.find(" ");
170 n.apt_id = n.name.substr(0, pos);
173 // Ranges are included with the latest data format, no need to
174 // assign our own defaults, unless the range is not set for some
177 if ( n.range < 0.1 ) {
178 // assign default ranges
180 if ( n.type == 2 || n.type == 3 ) {
181 n.range = FG_NAV_DEFAULT_RANGE;
182 } else if ( n.type == 4 || n.type == 5 || n.type == 6 ) {
183 n.range = FG_LOC_DEFAULT_RANGE;
184 } else if ( n.type == 12 ) {
185 n.range = FG_DME_DEFAULT_RANGE;
187 n.range = FG_LOC_DEFAULT_RANGE;
191 // transmitted ident (same as ident unless modeling a fault)
192 n.trans_ident = n.ident;
194 // generate cartesian coordinates
195 n.cart = SGVec3d::fromGeod(n.pos);
200 class FGTACANRecord : public SGReferenced {
207 inline FGTACANRecord(void);
208 inline ~FGTACANRecord(void) {}
210 inline const string& get_channel() const { return channel; }
211 inline int get_freq() const { return freq; }
212 friend istream& operator>> ( istream&, FGTACANRecord& );
217 FGTACANRecord::FGTACANRecord(void) :
225 operator >> ( istream& in, FGTACANRecord& n )
227 in >> n.channel >> n.freq ;
228 //getline( in, n.name );
232 #endif // _FG_NAVRECORD_HXX