1 // fixlist.cxx -- fix list management class
3 // Written by Curtis Olson, started April 2000.
5 // Copyright (C) 2000 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.
28 #include <simgear/debug/logstream.hxx>
29 #include <simgear/misc/sgstream.hxx>
30 #include <simgear/math/sg_geodesy.hxx>
32 #include "fixlist.hxx"
36 FGFixList::FGFixList( void ) {
41 FGFixList::~FGFixList( void ) {
45 // load the navaids and build the map
46 bool FGFixList::init( SGPath path ) {
47 fixlist.erase( fixlist.begin(), fixlist.end() );
49 sg_gzifstream in( path.str() );
50 if ( !in.is_open() ) {
51 SG_LOG( SG_GENERAL, SG_ALERT, "Cannot open file: " << path.str() );
55 // toss the first two lines of the file
59 // read in each remaining line of the file
63 while ( in.get(c) && c != '\0' ) {
66 while ( ! in.eof() ) {
71 if ( fix.get_lat() > 95.0 ) {
75 /* cout << "ident=" << fix.get_ident()
76 << ", lat=" << fix.get_lat()
77 << ", lon=" << fix.get_lon() << endl; */
79 fixlist[fix.get_ident()] = fix;
86 // query the database for the specified fix, lon and lat are in
87 // degrees, elev is in meters
88 bool FGFixList::query( const string& ident, FGFix *fix ) {
89 *fix = fixlist[ident];
90 if ( ! fix->get_ident().empty() ) {
98 // query the database for the specified fix, lon and lat are in
99 // degrees, elev is in meters
100 bool FGFixList::query_and_offset( const string& ident, double lon, double lat,
101 double elev, FGFix *fix, double *heading,
104 *fix = fixlist[ident];
105 if ( fix->get_ident().empty() ) {
110 geo_inverse_wgs_84( elev, lat, lon,
111 fix->get_lat(), fix->get_lon(),
113 // cout << " dist = " << s << endl;
119 const FGFix* FGFixList::findFirstByIdent( const string& ident, bool exact)
121 fix_map_iterator itr;
123 itr = fixlist.find(ident);
125 itr = fixlist.lower_bound(ident);
127 if(itr == fixlist.end()) {
130 return(&(itr->second));