1 // runways.hxx -- a simple class to manage airport runway info
3 // Written by Curtis Olson, started August 2000.
5 // Copyright (C) 2000 Curtis L. Olson - curt@flightgear.org
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.
28 // #include <sys/types.h> // for gdbm open flags
29 // #include <sys/stat.h> // for gdbm open flags
31 #include <simgear/compiler.h>
33 #include <simgear/debug/logstream.hxx>
34 #include <simgear/misc/sgstream.hxx>
37 #include STL_FUNCTIONAL
38 #include STL_ALGORITHM
40 #include "runways.hxx"
42 SG_USING_NAMESPACE(std);
45 FGRunway::FGRunway() {
49 FGRunway::~FGRunway() {
53 FGRunways::FGRunways( const string& file ) {
54 // open the specified database readonly
55 storage = new c4_Storage( file.c_str(), false );
57 if ( !storage->Strategy().IsValid() ) {
58 SG_LOG( SG_GENERAL, SG_ALERT, "Cannot open file: " << file );
62 vRunway = new c4_View;
64 storage->GetAs("runway[ID:S,Rwy:S,Longitude:F,Latitude:F,Heading:F,Length:F,Width:F,SurfaceFlags:S,End1Flags:F,End2Flags:F]");
70 // search for the specified id
71 bool FGRunways::search( const string& id, FGRunway* r ) {
72 c4_StringProp pID ("ID");
73 c4_StringProp pRwy ("Rwy");
74 c4_FloatProp pLon ("Longitude");
75 c4_FloatProp pLat ("Latitude");
76 c4_FloatProp pHdg ("Heading");
77 c4_FloatProp pLen ("Length");
78 c4_FloatProp pWid ("Width");
79 c4_StringProp pSurf ("SurfaceFlags");
80 c4_StringProp pEnd1 ("End1Flags");
81 c4_StringProp pEnd2 ("End2Flags");
83 int index = vRunway->Find(pID[id.c_str()]);
84 cout << "index = " << index << endl;
90 next_index = index + 1;
92 c4_RowRef row = vRunway->GetAt(index);
94 r->id = (const char *) pID(row);
95 r->rwy_no = (const char *) pRwy(row);
96 r->lon = (double) pLon(row);
97 r->lat = (double) pLat(row);
98 r->heading = (double) pHdg(row);
99 r->length = (double) pLen(row);
100 r->width = (double) pWid(row);
101 r->surface_flags = (const char *) pSurf(row);
102 r->end1_flags = (const char *) pEnd1(row);
103 r->end2_flags = (const char *) pEnd2(row);
109 FGRunway FGRunways::search( const string& id ) {
116 // search for the specified id
117 bool FGRunways::next( FGRunway* r ) {
118 c4_StringProp pID ("ID");
119 c4_StringProp pRwy ("Rwy");
120 c4_FloatProp pLon ("Longitude");
121 c4_FloatProp pLat ("Latitude");
122 c4_FloatProp pHdg ("Heading");
123 c4_FloatProp pLen ("Length");
124 c4_FloatProp pWid ("Width");
125 c4_StringProp pSurf ("SurfaceFlags");
126 c4_StringProp pEnd1 ("End1Flags");
127 c4_StringProp pEnd2 ("End2Flags");
129 int size = vRunway->GetSize();
130 // cout << "total records = " << size << endl;
132 int index = next_index;
133 // cout << "index = " << index << endl;
135 if ( index == -1 || index >= size ) {
139 next_index = index + 1;
141 c4_RowRef row = vRunway->GetAt(index);
143 r->id = (const char *) pID(row);
144 r->rwy_no = (const char *) pRwy(row);
145 r->lon = (double) pLon(row);
146 r->lat = (double) pLat(row);
147 r->heading = (double) pHdg(row);
148 r->length = (double) pLen(row);
149 r->width = (double) pWid(row);
150 r->surface_flags = (const char *) pSurf(row);
151 r->end1_flags = (const char *) pEnd1(row);
152 r->end2_flags = (const char *) pEnd2(row);
159 FGRunways::~FGRunways( void ) {
165 FGRunwaysUtil::FGRunwaysUtil() {
170 int FGRunwaysUtil::load( const string& file ) {
174 runways.erase( runways.begin(), runways.end() );
176 sg_gzifstream in( file );
177 if ( !in.is_open() ) {
178 SG_LOG( SG_GENERAL, SG_ALERT, "Cannot open file: " << file );
182 // skip first line of file
184 in.getline( tmp, 256 );
186 // read in each line of the file
192 while ( in.get(c) && c != '\0' ) {
196 } else if ( c == 'R' ) {
199 runways.push_back(r);
209 while ( ! in.eof() ) {
215 } else if ( c == 'R' ) {
218 // cout << apt_id << " " << r.rwy_no << endl;
219 runways.push_back(r);
232 // save the data in gdbm format
233 bool FGRunwaysUtil::dump_mk4( const string& file ) {
235 // open database for writing
236 c4_Storage storage( file.c_str(), true );
238 // need to do something about error handling here!
240 // define the properties
241 c4_StringProp pID ("ID");
242 c4_StringProp pRwy ("Rwy");
243 c4_FloatProp pLon ("Longitude");
244 c4_FloatProp pLat ("Latitude");
245 c4_FloatProp pHdg ("Heading");
246 c4_FloatProp pLen ("Length");
247 c4_FloatProp pWid ("Width");
248 c4_StringProp pSurf ("SurfaceFlags");
249 c4_StringProp pEnd1 ("End1Flags");
250 c4_StringProp pEnd2 ("End2Flags");
252 // Start with an empty view of the proper structure.
254 storage.GetAs("runway[ID:S,Rwy:S,Longitude:F,Latitude:F,Heading:F,Length:F,Width:F,SurfaceFlags:S,End1Flags:F,End2Flags:F]");
258 iterator current = runways.begin();
259 const_iterator end = runways.end();
260 while ( current != end ) {
261 // add each runway record
262 pID (row) = current->id.c_str();
263 pRwy (row) = current->rwy_no.c_str();
264 pLon (row) = current->lon;
265 pLat (row) = current->lat;
266 pHdg (row) = current->heading;
267 pLen (row) = current->length;
268 pWid (row) = current->width;
269 pSurf (row) = current->surface_flags.c_str();
270 pEnd1 (row) = current->end1_flags.c_str();
271 pEnd2 (row) = current->end2_flags.c_str();
277 // commit our changes
285 // search for the specified id
287 FGRunwaysUtil::search( const string& id, FGRunway* a ) const
289 const_iterator it = runways.find( FGRunway(id) );
290 if ( it != runways.end() )
303 FGRunwaysUtil::search( const string& id ) const
306 this->search( id, &a );
312 FGRunwaysUtil::~FGRunwaysUtil( void ) {