1 // NavDataCache.cxx - defines a unified binary cache for navigation
2 // data, parsed from various text / XML sources.
4 // Written by James Turner, started 2012.
6 // Copyright (C) 2012 James Turner
8 // This program is free software; you can redistribute it and/or
9 // modify it under the terms of the GNU General Public License as
10 // published by the Free Software Foundation; either version 2 of the
11 // License, or (at your option) any later version.
13 // This program is distributed in the hope that it will be useful, but
14 // WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 // General Public License for more details.
18 // You should have received a copy of the GNU General Public License
19 // along with this program; if not, write to the Free Software
20 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
26 // to ensure compatability between sqlite3_int64 and PositionedID,
27 // force the type used by sqlite to match PositionedID explicitly
28 #define SQLITE_INT64_TYPE int64_t
29 #define SQLITE_UINT64_TYPE uint64_t
31 #include "NavDataCache.hxx"
36 #include <stdint.h> // for int64_t
38 #include <boost/foreach.hpp>
43 #include <simgear/structure/exception.hxx>
44 #include <simgear/debug/logstream.hxx>
45 #include <simgear/bucket/newbucket.hxx>
46 #include <simgear/misc/sg_path.hxx>
47 #include <simgear/misc/strutils.hxx>
48 #include <simgear/threads/SGThread.hxx>
49 #include <simgear/threads/SGGuard.hxx>
51 #include <Main/globals.hxx>
52 #include "markerbeacon.hxx"
53 #include "navrecord.hxx"
54 #include <Airports/simple.hxx>
55 #include <Airports/runways.hxx>
56 #include <ATC/CommStation.hxx>
58 #include <Navaids/fixlist.hxx>
59 #include <Navaids/navdb.hxx>
60 #include "PositionedOctree.hxx"
61 #include <Airports/apt_loader.hxx>
62 #include <Navaids/airways.hxx>
63 #include <Airports/parking.hxx>
64 #include <Airports/gnnode.hxx>
68 #define SG_NAVCACHE SG_NAVAID
69 //#define LAZY_OCTREE_UPDATES 1
73 const int SCHEMA_VERSION = 5;
75 // bind a std::string to a sqlite statement. The std::string must live the
76 // entire duration of the statement execution - do not pass a temporary
77 // std::string, or the compiler may delete it, freeing the C-string storage,
78 // and causing subtle memory corruption bugs!
79 void sqlite_bind_stdstring(sqlite3_stmt* stmt, int value, const std::string& s)
81 sqlite3_bind_text(stmt, value, s.c_str(), s.length(), SQLITE_STATIC);
84 // variant of the above, which does not care about the lifetime of the
86 void sqlite_bind_temp_stdstring(sqlite3_stmt* stmt, int value, const std::string& s)
88 sqlite3_bind_text(stmt, value, s.c_str(), s.length(), SQLITE_TRANSIENT);
91 typedef sqlite3_stmt* sqlite3_stmt_ptr;
93 void f_distanceCartSqrFunction(sqlite3_context* ctx, int argc, sqlite3_value* argv[])
99 SGVec3d posA(sqlite3_value_double(argv[0]),
100 sqlite3_value_double(argv[1]),
101 sqlite3_value_double(argv[2]));
103 SGVec3d posB(sqlite3_value_double(argv[3]),
104 sqlite3_value_double(argv[4]),
105 sqlite3_value_double(argv[5]));
106 sqlite3_result_double(ctx, distSqr(posA, posB));
110 static string cleanRunwayNo(const string& aRwyNo)
112 if (aRwyNo[0] == 'x') {
113 return string(); // no ident for taxiways
116 string result(aRwyNo);
117 // canonicalise runway ident
118 if ((aRwyNo.size() == 1) || !isdigit(aRwyNo[1])) {
119 result = "0" + aRwyNo;
122 // trim off trailing garbage
123 if (result.size() > 2) {
124 char suffix = toupper(result[2]);
126 result = result.substr(0, 2);
133 } // anonymous namespace
139 * Thread encapsulating a cache rebuild. This is not used to parallelise
140 * the rebuild - we must still wait until completion before doing other
141 * startup, since many things rely on a complete cache. The thread is used
142 * so we don't block the main event loop for an unacceptable duration,
143 * which causes 'not responding' / spinning beachballs on Windows & Mac
145 class RebuildThread : public SGThread
148 RebuildThread(NavDataCache* cache) :
155 bool isFinished() const
157 SGGuard<SGMutex> g(_lock);
166 SG_LOG(SG_NAVCACHE, SG_INFO, "cache rebuild took:" << st.elapsedMSec() << "msec");
168 SGGuard<SGMutex> g(_lock);
172 NavDataCache* _cache;
173 mutable SGMutex _lock;
177 ////////////////////////////////////////////////////////////////////////////
179 typedef std::map<PositionedID, FGPositionedRef> PositionedCache;
181 class AirportTower : public FGPositioned
184 AirportTower(PositionedID& guid, PositionedID airport,
185 const string& ident, const SGGeod& pos) :
186 FGPositioned(guid, FGPositioned::TOWER, ident, pos)
191 class NavDataCache::NavDataCachePrivate
194 NavDataCachePrivate(const SGPath& p, NavDataCache* o) :
203 ~NavDataCachePrivate()
205 BOOST_FOREACH(sqlite3_stmt_ptr stmt, prepared) {
206 sqlite3_finalize(stmt);
215 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache at:" << path);
216 sqlite3_open_v2(path.c_str(), &db,
217 SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, NULL);
220 sqlite3_stmt_ptr checkTables =
221 prepare("SELECT count(*) FROM sqlite_master WHERE name='properties'");
223 sqlite3_create_function(db, "distanceCartSqr", 6, SQLITE_ANY, NULL,
224 f_distanceCartSqrFunction, NULL, NULL);
226 execSelect(checkTables);
227 bool didCreate = false;
228 if (sqlite3_column_int(checkTables, 0) == 0) {
229 SG_LOG(SG_NAVCACHE, SG_INFO, "will create tables");
234 readPropertyQuery = prepare("SELECT value FROM properties WHERE key=?");
235 writePropertyQuery = prepare("INSERT OR REPLACE INTO properties "
236 "(key, value) VALUES (?,?)");
239 writeIntProperty("schema-version", SCHEMA_VERSION);
241 int schemaVersion = outer->readIntProperty("schema-version");
242 if (schemaVersion != SCHEMA_VERSION) {
243 SG_LOG(SG_NAVCACHE, SG_INFO, "Navcache schema mismatch, will rebuild");
244 throw sg_exception("Navcache schema has changed");
251 void checkCacheFile()
253 SG_LOG(SG_NAVCACHE, SG_INFO, "running DB integrity check");
257 sqlite3_stmt_ptr stmt = prepare("PRAGMA integrity_check(1)");
258 if (!execSelect(stmt)) {
259 throw sg_exception("DB integrity check failed to run");
262 string v = (char*) sqlite3_column_text(stmt, 0);
264 throw sg_exception("DB integrity check returned:" + v);
267 SG_LOG(SG_NAVCACHE, SG_INFO, "NavDataCache integrity check took:" << st.elapsedMSec());
271 void callSqlite(int result, const string& sql)
273 if (result == SQLITE_OK)
277 if (result == SQLITE_MISUSE) {
278 errMsg = "Sqlite API abuse";
279 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite API abuse");
281 errMsg = sqlite3_errmsg(db);
282 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " running:\n\t" << sql);
285 throw sg_exception("Sqlite error:" + errMsg, sql);
288 void runSQL(const string& sql)
290 sqlite3_stmt_ptr stmt;
291 callSqlite(sqlite3_prepare_v2(db, sql.c_str(), sql.length(), &stmt, NULL), sql);
295 } catch (sg_exception&) {
296 sqlite3_finalize(stmt);
300 sqlite3_finalize(stmt);
303 sqlite3_stmt_ptr prepare(const string& sql)
305 sqlite3_stmt_ptr stmt;
306 callSqlite(sqlite3_prepare_v2(db, sql.c_str(), sql.length(), &stmt, NULL), sql);
307 prepared.push_back(stmt);
311 void finalize(sqlite3_stmt_ptr s)
313 StmtVec::iterator it = std::find(prepared.begin(), prepared.end(), s);
314 if (it == prepared.end()) {
315 throw sg_exception("Finalising statement that was not prepared");
322 void reset(sqlite3_stmt_ptr stmt)
325 if (sqlite3_reset(stmt) != SQLITE_OK) {
326 string errMsg = sqlite3_errmsg(db);
327 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error resetting:" << errMsg);
328 throw sg_exception("Sqlite error resetting:" + errMsg, sqlite3_sql(stmt));
332 bool execSelect(sqlite3_stmt_ptr stmt)
334 return stepSelect(stmt);
337 bool stepSelect(sqlite3_stmt_ptr stmt)
339 int result = sqlite3_step(stmt);
340 if (result == SQLITE_ROW) {
341 return true; // at least one result row
344 if (result == SQLITE_DONE) {
345 return false; // no result rows
349 if (result == SQLITE_MISUSE) {
350 errMsg = "Sqlite API abuse";
351 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite API abuse");
353 errMsg = sqlite3_errmsg(db);
354 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg
355 << " while running:\n\t" << sqlite3_sql(stmt));
358 throw sg_exception("Sqlite error:" + errMsg, sqlite3_sql(stmt));
361 void execSelect1(sqlite3_stmt_ptr stmt)
363 if (!execSelect(stmt)) {
364 SG_LOG(SG_NAVCACHE, SG_WARN, "empty SELECT running:\n\t" << sqlite3_sql(stmt));
365 throw sg_exception("no results returned for select", sqlite3_sql(stmt));
369 sqlite3_int64 execInsert(sqlite3_stmt_ptr stmt)
372 return sqlite3_last_insert_rowid(db);
375 void execUpdate(sqlite3_stmt_ptr stmt)
382 runSQL("CREATE TABLE properties ("
387 runSQL("CREATE TABLE stat_cache ("
388 "path VARCHAR unique,"
392 runSQL("CREATE TABLE positioned ("
394 "ident VARCHAR collate nocase,"
395 "name VARCHAR collate nocase,"
406 runSQL("CREATE INDEX pos_octree ON positioned(octree_node)");
407 runSQL("CREATE INDEX pos_ident ON positioned(ident collate nocase)");
408 runSQL("CREATE INDEX pos_name ON positioned(name collate nocase)");
409 // allow efficient querying of 'all ATIS at this airport' or
410 // 'all towers at this airport'
411 runSQL("CREATE INDEX pos_apt_type ON positioned(airport, type)");
413 runSQL("CREATE TABLE airport ("
418 runSQL("CREATE TABLE comm ("
424 runSQL("CREATE INDEX comm_freq ON comm(freq_khz)");
426 runSQL("CREATE TABLE runway ("
431 "displaced_threshold FLOAT,"
438 runSQL("CREATE TABLE navaid ("
447 runSQL("CREATE INDEX navaid_freq ON navaid(freq)");
449 runSQL("CREATE TABLE octree (children INT)");
451 runSQL("CREATE TABLE airway ("
452 "ident VARCHAR collate nocase,"
453 "network INT" // high-level or low-level
456 runSQL("CREATE INDEX airway_ident ON airway(ident)");
458 runSQL("CREATE TABLE airway_edge ("
465 runSQL("CREATE INDEX airway_edge_from ON airway_edge(a)");
467 runSQL("CREATE TABLE taxi_node ("
473 runSQL("CREATE TABLE parking ("
481 runSQL("CREATE TABLE groundnet_edge ("
487 runSQL("CREATE INDEX groundnet_edge_airport ON groundnet_edge(airport)");
488 runSQL("CREATE INDEX groundnet_edge_from ON groundnet_edge(a)");
491 void prepareQueries()
493 clearProperty = prepare("DELETE FROM properties WHERE key=?1");
494 writePropertyMulti = prepare("INSERT INTO properties (key, value) VALUES(?1,?2)");
496 #define POSITIONED_COLS "rowid, type, ident, name, airport, lon, lat, elev_m, octree_node"
497 #define AND_TYPED "AND type>=?2 AND type <=?3"
498 statCacheCheck = prepare("SELECT stamp FROM stat_cache WHERE path=?");
499 stampFileCache = prepare("INSERT OR REPLACE INTO stat_cache "
500 "(path, stamp) VALUES (?,?)");
502 loadPositioned = prepare("SELECT " POSITIONED_COLS " FROM positioned WHERE rowid=?");
503 loadAirportStmt = prepare("SELECT has_metar FROM airport WHERE rowid=?");
504 loadNavaid = prepare("SELECT range_nm, freq, multiuse, runway, colocated FROM navaid WHERE rowid=?");
505 loadCommStation = prepare("SELECT freq_khz, range_nm FROM comm WHERE rowid=?");
506 loadRunwayStmt = prepare("SELECT heading, length_ft, width_m, surface, displaced_threshold,"
507 "stopway, reciprocal, ils FROM runway WHERE rowid=?1");
509 getAirportItems = prepare("SELECT rowid FROM positioned WHERE airport=?1 " AND_TYPED);
512 setAirportMetar = prepare("UPDATE airport SET has_metar=?2 WHERE rowid="
513 "(SELECT rowid FROM positioned WHERE ident=?1 AND type>=?3 AND type <=?4)");
514 sqlite3_bind_int(setAirportMetar, 3, FGPositioned::AIRPORT);
515 sqlite3_bind_int(setAirportMetar, 4, FGPositioned::SEAPORT);
517 setRunwayReciprocal = prepare("UPDATE runway SET reciprocal=?2 WHERE rowid=?1");
518 setRunwayILS = prepare("UPDATE runway SET ils=?2 WHERE rowid=?1");
519 updateRunwayThreshold = prepare("UPDATE runway SET heading=?2, displaced_threshold=?3, stopway=?4 WHERE rowid=?1");
521 insertPositionedQuery = prepare("INSERT INTO positioned "
522 "(type, ident, name, airport, lon, lat, elev_m, octree_node, "
523 "cart_x, cart_y, cart_z)"
524 " VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?10, ?11)");
526 setAirportPos = prepare("UPDATE positioned SET lon=?2, lat=?3, elev_m=?4, octree_node=?5, "
527 "cart_x=?6, cart_y=?7, cart_z=?8 WHERE rowid=?1");
528 insertAirport = prepare("INSERT INTO airport (rowid, has_metar) VALUES (?, ?)");
529 insertNavaid = prepare("INSERT INTO navaid (rowid, freq, range_nm, multiuse, runway, colocated)"
530 " VALUES (?1, ?2, ?3, ?4, ?5, ?6)");
531 updateILS = prepare("UPDATE navaid SET multiuse=?2 WHERE rowid=?1");
533 insertCommStation = prepare("INSERT INTO comm (rowid, freq_khz, range_nm)"
534 " VALUES (?, ?, ?)");
535 insertRunway = prepare("INSERT INTO runway "
536 "(rowid, heading, length_ft, width_m, surface, displaced_threshold, stopway, reciprocal)"
537 " VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8)");
538 runwayLengthFtQuery = prepare("SELECT length_ft FROM runway WHERE rowid=?1");
541 findClosestWithIdent = prepare("SELECT rowid FROM positioned WHERE ident=?1 "
542 AND_TYPED " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
544 findCommByFreq = prepare("SELECT positioned.rowid FROM positioned, comm WHERE "
545 "positioned.rowid=comm.rowid AND freq_khz=?1 "
546 AND_TYPED " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
548 findNavsByFreq = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
549 "positioned.rowid=navaid.rowid "
550 "AND navaid.freq=?1 " AND_TYPED
551 " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
553 findNavsByFreqNoPos = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
554 "positioned.rowid=navaid.rowid AND freq=?1 " AND_TYPED);
556 findNavaidForRunway = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
557 "positioned.rowid=navaid.rowid AND runway=?1 AND type=?2");
559 // for an octree branch, return the child octree nodes which exist,
560 // described as a bit-mask
561 getOctreeChildren = prepare("SELECT children FROM octree WHERE rowid=?1");
563 #ifdef LAZY_OCTREE_UPDATES
564 updateOctreeChildren = prepare("UPDATE octree SET children=?2 WHERE rowid=?1");
566 // mask the new child value into the existing one
567 updateOctreeChildren = prepare("UPDATE octree SET children=(?2 | children) WHERE rowid=?1");
570 // define a new octree node (with no children)
571 insertOctree = prepare("INSERT INTO octree (rowid, children) VALUES (?1, 0)");
573 getOctreeLeafChildren = prepare("SELECT rowid, type FROM positioned WHERE octree_node=?1");
575 searchAirports = prepare("SELECT ident, name FROM positioned WHERE (name LIKE ?1 OR ident LIKE ?1) " AND_TYPED);
576 sqlite3_bind_int(searchAirports, 2, FGPositioned::AIRPORT);
577 sqlite3_bind_int(searchAirports, 3, FGPositioned::SEAPORT);
579 getAirportItemByIdent = prepare("SELECT rowid FROM positioned WHERE airport=?1 AND ident=?2 AND type=?3");
581 findAirportRunway = prepare("SELECT airport, rowid FROM positioned WHERE ident=?2 AND type=?3 AND airport="
582 "(SELECT rowid FROM positioned WHERE type=?4 AND ident=?1)");
583 sqlite3_bind_int(findAirportRunway, 3, FGPositioned::RUNWAY);
584 sqlite3_bind_int(findAirportRunway, 4, FGPositioned::AIRPORT);
586 // three-way join to get the navaid ident and runway ident in a single select.
587 // we're joining positioned to itself by the navaid runway, with the complication
588 // that we need to join the navaids table to get the runway ID.
589 // we also need to filter by type to excluse glideslope (GS) matches
590 findILS = prepare("SELECT nav.rowid FROM positioned AS nav, positioned AS rwy, navaid WHERE "
591 "nav.ident=?1 AND nav.airport=?2 AND rwy.ident=?3 "
592 "AND rwy.rowid = navaid.runway AND navaid.rowid=nav.rowid "
593 "AND (nav.type=?4 OR nav.type=?5)");
595 sqlite3_bind_int(findILS, 4, FGPositioned::ILS);
596 sqlite3_bind_int(findILS, 5, FGPositioned::LOC);
599 findAirway = prepare("SELECT rowid FROM airway WHERE network=?1 AND ident=?2");
600 insertAirway = prepare("INSERT INTO airway (ident, network) "
603 insertAirwayEdge = prepare("INSERT INTO airway_edge (network, airway, a, b) "
604 "VALUES (?1, ?2, ?3, ?4)");
606 isPosInAirway = prepare("SELECT rowid FROM airway_edge WHERE network=?1 AND a=?2");
608 airwayEdgesFrom = prepare("SELECT airway, b FROM airway_edge WHERE network=?1 AND a=?2");
610 // parking / taxi-node graph
611 insertTaxiNode = prepare("INSERT INTO taxi_node (rowid, hold_type, on_runway, pushback) VALUES(?1, ?2, ?3, 0)");
612 insertParkingPos = prepare("INSERT INTO parking (rowid, heading, radius, gate_type, airlines) "
613 "VALUES (?1, ?2, ?3, ?4, ?5)");
614 setParkingPushBack = prepare("UPDATE parking SET pushback=?2 WHERE rowid=?1");
616 loadTaxiNodeStmt = prepare("SELECT hold_type, on_runway FROM taxi_node WHERE rowid=?1");
617 loadParkingPos = prepare("SELECT heading, radius, gate_type, airlines, pushback FROM parking WHERE rowid=?1");
618 taxiEdgesFrom = prepare("SELECT b FROM groundnet_edge WHERE a=?1");
619 pushbackEdgesFrom = prepare("SELECT b FROM groundnet_edge, taxi_node WHERE "
620 "a=?1 AND groundnet_edge.b = taxi_node.rowid AND pushback=1");
622 insertTaxiEdge = prepare("INSERT INTO groundnet_edge (airport, a,b) VALUES(?1, ?2, ?3)");
624 markTaxiNodeAsPushback = prepare("UPDATE taxi_node SET pushback=1 WHERE rowid=?1");
625 airportTaxiNodes = prepare("SELECT rowid FROM positioned WHERE (type=?2 OR type=?3) AND airport=?1");
626 sqlite3_bind_int(airportTaxiNodes, 2, FGPositioned::PARKING);
627 sqlite3_bind_int(airportTaxiNodes, 3, FGPositioned::TAXI_NODE);
629 airportPushbackNodes = prepare("SELECT positioned.rowid FROM positioned, taxi_node WHERE "\
630 "airport=?1 AND positioned.rowid=taxi_node.rowid AND pushback=1 "
631 "AND (type=?2 OR type=?3)");
632 sqlite3_bind_int(airportPushbackNodes, 2, FGPositioned::PARKING);
633 sqlite3_bind_int(airportPushbackNodes, 3, FGPositioned::TAXI_NODE);
635 findNearestTaxiNode = prepare("SELECT positioned.rowid FROM positioned, taxi_node WHERE "
636 "positioned.rowid = taxi_node.rowid AND airport=?1 "
637 "ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?2, ?3, ?4) "
640 findNearestRunwayTaxiNode = prepare("SELECT positioned.rowid FROM positioned, taxi_node WHERE "
641 "positioned.rowid = taxi_node.rowid AND airport=?1 "
643 "ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?2, ?3, ?4) ");
645 findAirportParking = prepare("SELECT positioned.rowid FROM positioned, parking WHERE "
646 "airport=?1 AND type=?4 AND "
647 "radius >= ?2 AND gate_type = ?3 AND "
648 "parking.rowid=positioned.rowid");
649 sqlite3_bind_int(findAirportParking, 4, FGPositioned::PARKING);
652 void writeIntProperty(const string& key, int value)
654 sqlite_bind_stdstring(writePropertyQuery, 1, key);
655 sqlite3_bind_int(writePropertyQuery, 2, value);
656 execSelect(writePropertyQuery);
660 FGPositioned* loadFromStmt(sqlite3_stmt_ptr query);
662 FGAirport* loadAirport(sqlite_int64 rowId,
663 FGPositioned::Type ty,
664 const string& id, const string& name, const SGGeod& pos)
666 reset(loadAirportStmt);
667 sqlite3_bind_int64(loadAirportStmt, 1, rowId);
668 execSelect1(loadAirportStmt);
669 bool hasMetar = (sqlite3_column_int(loadAirportStmt, 0) > 0);
670 return new FGAirport(rowId, id, pos, name, hasMetar, ty);
673 FGRunwayBase* loadRunway(sqlite3_int64 rowId, FGPositioned::Type ty,
674 const string& id, const SGGeod& pos, PositionedID apt)
676 reset(loadRunwayStmt);
677 sqlite3_bind_int(loadRunwayStmt, 1, rowId);
678 execSelect1(loadRunwayStmt);
680 double heading = sqlite3_column_double(loadRunwayStmt, 0);
681 double lengthM = sqlite3_column_int(loadRunwayStmt, 1);
682 double widthM = sqlite3_column_double(loadRunwayStmt, 2);
683 int surface = sqlite3_column_int(loadRunwayStmt, 3);
685 if (ty == FGPositioned::TAXIWAY) {
686 return new FGTaxiway(rowId, id, pos, heading, lengthM, widthM, surface);
688 double displacedThreshold = sqlite3_column_double(loadRunwayStmt, 4);
689 double stopway = sqlite3_column_double(loadRunwayStmt, 5);
690 PositionedID reciprocal = sqlite3_column_int64(loadRunwayStmt, 6);
691 PositionedID ils = sqlite3_column_int64(loadRunwayStmt, 7);
692 FGRunway* r = new FGRunway(rowId, apt, id, pos, heading, lengthM, widthM,
693 displacedThreshold, stopway, surface, false);
695 if (reciprocal > 0) {
696 r->setReciprocalRunway(reciprocal);
707 CommStation* loadComm(sqlite3_int64 rowId, FGPositioned::Type ty,
708 const string& id, const string& name,
710 PositionedID airport)
712 reset(loadCommStation);
713 sqlite3_bind_int64(loadCommStation, 1, rowId);
714 execSelect1(loadCommStation);
716 int range = sqlite3_column_int(loadCommStation, 0);
717 int freqKhz = sqlite3_column_int(loadCommStation, 1);
719 CommStation* c = new CommStation(rowId, name, ty, pos, freqKhz, range);
720 c->setAirport(airport);
724 FGPositioned* loadNav(sqlite3_int64 rowId,
725 FGPositioned::Type ty, const string& id,
726 const string& name, const SGGeod& pos)
729 sqlite3_bind_int64(loadNavaid, 1, rowId);
730 execSelect1(loadNavaid);
732 PositionedID runway = sqlite3_column_int64(loadNavaid, 3);
733 // marker beacons are light-weight
734 if ((ty == FGPositioned::OM) || (ty == FGPositioned::IM) ||
735 (ty == FGPositioned::MM))
737 return new FGMarkerBeaconRecord(rowId, ty, runway, pos);
740 int rangeNm = sqlite3_column_int(loadNavaid, 0),
741 freq = sqlite3_column_int(loadNavaid, 1);
742 double mulituse = sqlite3_column_double(loadNavaid, 2);
743 //sqlite3_int64 colocated = sqlite3_column_int64(loadNavaid, 4);
745 return new FGNavRecord(rowId, ty, id, name, pos, freq, rangeNm, mulituse, runway);
748 FGPositioned* loadParking(sqlite3_int64 rowId,
749 const string& name, const SGGeod& pos,
750 PositionedID airport)
752 reset(loadParkingPos);
753 sqlite3_bind_int64(loadParkingPos, 1, rowId);
754 execSelect1(loadParkingPos);
756 double heading = sqlite3_column_double(loadParkingPos, 0);
757 int radius = sqlite3_column_int(loadParkingPos, 1);
758 string aircraftType((char*) sqlite3_column_text(loadParkingPos, 2));
759 string airlines((char*) sqlite3_column_text(loadParkingPos, 3));
760 PositionedID pushBack = sqlite3_column_int64(loadParkingPos, 4);
762 return new FGParking(rowId, pos, heading, radius, name, aircraftType, airlines, pushBack);
765 FGPositioned* loadTaxiNode(sqlite3_int64 rowId, const SGGeod& pos,
766 PositionedID airport)
768 reset(loadTaxiNodeStmt);
769 sqlite3_bind_int64(loadTaxiNodeStmt, 1, rowId);
770 execSelect1(loadTaxiNodeStmt);
772 int hold_type = sqlite3_column_int(loadTaxiNodeStmt, 0);
773 bool onRunway = sqlite3_column_int(loadTaxiNodeStmt, 1);
774 return new FGTaxiNode(rowId, pos, onRunway, hold_type);
777 PositionedID insertPositioned(FGPositioned::Type ty, const string& ident,
778 const string& name, const SGGeod& pos, PositionedID apt,
781 SGVec3d cartPos(SGVec3d::fromGeod(pos));
783 reset(insertPositionedQuery);
784 sqlite3_bind_int(insertPositionedQuery, 1, ty);
785 sqlite_bind_stdstring(insertPositionedQuery, 2, ident);
786 sqlite_bind_stdstring(insertPositionedQuery, 3, name);
787 sqlite3_bind_int64(insertPositionedQuery, 4, apt);
788 sqlite3_bind_double(insertPositionedQuery, 5, pos.getLongitudeDeg());
789 sqlite3_bind_double(insertPositionedQuery, 6, pos.getLatitudeDeg());
790 sqlite3_bind_double(insertPositionedQuery, 7, pos.getElevationM());
793 Octree::Leaf* octreeLeaf = Octree::global_spatialOctree->findLeafForPos(cartPos);
794 assert(intersects(octreeLeaf->bbox(), cartPos));
795 sqlite3_bind_int64(insertPositionedQuery, 8, octreeLeaf->guid());
797 sqlite3_bind_null(insertPositionedQuery, 8);
800 sqlite3_bind_double(insertPositionedQuery, 9, cartPos.x());
801 sqlite3_bind_double(insertPositionedQuery, 10, cartPos.y());
802 sqlite3_bind_double(insertPositionedQuery, 11, cartPos.z());
804 PositionedID r = execInsert(insertPositionedQuery);
808 FGPositioned::List findAllByString(const string& s, const string& column,
809 FGPositioned::Filter* filter, bool exact)
812 if (!exact) query += "%";
814 // build up SQL query text
815 string matchTerm = exact ? "=?1" : " LIKE ?1";
816 string sql = "SELECT rowid FROM positioned WHERE " + column + matchTerm;
818 sql += " " AND_TYPED;
821 // find or prepare a suitable statement frrm the SQL
822 sqlite3_stmt_ptr stmt = findByStringDict[sql];
825 findByStringDict[sql] = stmt;
829 sqlite_bind_stdstring(stmt, 1, query);
831 sqlite3_bind_int(stmt, 2, filter->minType());
832 sqlite3_bind_int(stmt, 3, filter->maxType());
835 FGPositioned::List result;
836 // run the prepared SQL
837 while (stepSelect(stmt))
839 FGPositioned* pos = outer->loadById(sqlite3_column_int64(stmt, 0));
840 if (filter && !filter->pass(pos)) {
844 result.push_back(pos);
850 PositionedIDVec selectIds(sqlite3_stmt_ptr query)
852 PositionedIDVec result;
853 while (stepSelect(query)) {
854 result.push_back(sqlite3_column_int64(query, 0));
859 double runwayLengthFt(PositionedID rwy)
861 reset(runwayLengthFtQuery);
862 sqlite3_bind_int64(runwayLengthFtQuery, 1, rwy);
863 execSelect1(runwayLengthFtQuery);
864 return sqlite3_column_double(runwayLengthFtQuery, 0);
867 void flushDeferredOctreeUpdates()
869 BOOST_FOREACH(Octree::Branch* nd, deferredOctreeUpdates) {
870 reset(updateOctreeChildren);
871 sqlite3_bind_int64(updateOctreeChildren, 1, nd->guid());
872 sqlite3_bind_int(updateOctreeChildren, 2, nd->childMask());
873 execUpdate(updateOctreeChildren);
876 deferredOctreeUpdates.clear();
883 /// the actual cache of ID -> instances. This holds an owning reference,
884 /// so once items are in the cache they will never be deleted until
885 /// the cache drops its reference
886 PositionedCache cache;
887 unsigned int cacheHits, cacheMisses;
889 SGPath aptDatPath, metarDatPath, navDatPath, fixDatPath,
890 carrierDatPath, airwayDatPath;
892 sqlite3_stmt_ptr readPropertyQuery, writePropertyQuery,
893 stampFileCache, statCacheCheck,
894 loadAirportStmt, loadCommStation, loadPositioned, loadNavaid,
896 sqlite3_stmt_ptr writePropertyMulti, clearProperty;
898 sqlite3_stmt_ptr insertPositionedQuery, insertAirport, insertTower, insertRunway,
899 insertCommStation, insertNavaid;
900 sqlite3_stmt_ptr setAirportMetar, setRunwayReciprocal, setRunwayILS,
901 setAirportPos, updateRunwayThreshold, updateILS;
903 sqlite3_stmt_ptr findClosestWithIdent;
904 // octree (spatial index) related queries
905 sqlite3_stmt_ptr getOctreeChildren, insertOctree, updateOctreeChildren,
906 getOctreeLeafChildren;
908 sqlite3_stmt_ptr searchAirports;
909 sqlite3_stmt_ptr findCommByFreq, findNavsByFreq,
910 findNavsByFreqNoPos, findNavaidForRunway;
911 sqlite3_stmt_ptr getAirportItems, getAirportItemByIdent;
912 sqlite3_stmt_ptr findAirportRunway,
915 sqlite3_stmt_ptr runwayLengthFtQuery;
918 sqlite3_stmt_ptr findAirway, insertAirwayEdge, isPosInAirway, airwayEdgesFrom,
921 // groundnet (parking, taxi node graph)
922 sqlite3_stmt_ptr loadTaxiNodeStmt, loadParkingPos, insertTaxiNode, insertParkingPos;
923 sqlite3_stmt_ptr taxiEdgesFrom, pushbackEdgesFrom, insertTaxiEdge, markTaxiNodeAsPushback,
924 airportTaxiNodes, airportPushbackNodes, findNearestTaxiNode, findAirportParking,
925 setParkingPushBack, findNearestRunwayTaxiNode;
927 // since there's many permutations of ident/name queries, we create
928 // them programtically, but cache the exact query by its raw SQL once
930 std::map<string, sqlite3_stmt_ptr> findByStringDict;
932 typedef std::vector<sqlite3_stmt_ptr> StmtVec;
935 std::set<Octree::Branch*> deferredOctreeUpdates;
937 // if we're performing a rebuild, the thread that is doing the work.
939 std::auto_ptr<RebuildThread> rebuilder;
942 //////////////////////////////////////////////////////////////////////
944 FGPositioned* NavDataCache::NavDataCachePrivate::loadFromStmt(sqlite3_stmt_ptr query)
947 sqlite3_int64 rowid = sqlite3_column_int64(query, 0);
948 FGPositioned::Type ty = (FGPositioned::Type) sqlite3_column_int(query, 1);
950 string ident = (char*) sqlite3_column_text(query, 2);
951 string name = (char*) sqlite3_column_text(query, 3);
952 sqlite3_int64 aptId = sqlite3_column_int64(query, 4);
953 double lon = sqlite3_column_double(query, 5);
954 double lat = sqlite3_column_double(query, 6);
955 double elev = sqlite3_column_double(query, 7);
956 SGGeod pos = SGGeod::fromDegM(lon, lat, elev);
959 case FGPositioned::AIRPORT:
960 case FGPositioned::SEAPORT:
961 case FGPositioned::HELIPORT:
962 return loadAirport(rowid, ty, ident, name, pos);
964 case FGPositioned::TOWER:
965 return new AirportTower(rowid, aptId, ident, pos);
967 case FGPositioned::RUNWAY:
968 case FGPositioned::TAXIWAY:
969 return loadRunway(rowid, ty, ident, pos, aptId);
971 case FGPositioned::LOC:
972 case FGPositioned::VOR:
973 case FGPositioned::GS:
974 case FGPositioned::ILS:
975 case FGPositioned::NDB:
976 case FGPositioned::OM:
977 case FGPositioned::MM:
978 case FGPositioned::IM:
979 case FGPositioned::DME:
980 case FGPositioned::TACAN:
981 case FGPositioned::MOBILE_TACAN:
984 FGAirport* apt = (FGAirport*) outer->loadById(aptId);
985 if (apt->validateILSData()) {
986 SG_LOG(SG_NAVCACHE, SG_INFO, "re-loaded ILS data for " << apt->ident());
987 // queried data above is probably invalid, force us to go around again
988 // (the next time through, validateILSData will return false)
989 return outer->loadById(rowid);
993 return loadNav(rowid, ty, ident, name, pos);
996 case FGPositioned::FIX:
997 return new FGFix(rowid, ident, pos);
999 case FGPositioned::WAYPOINT:
1001 FGPositioned* wpt = new FGPositioned(rowid, FGPositioned::WAYPOINT, ident, pos);
1005 case FGPositioned::FREQ_GROUND:
1006 case FGPositioned::FREQ_TOWER:
1007 case FGPositioned::FREQ_ATIS:
1008 case FGPositioned::FREQ_AWOS:
1009 case FGPositioned::FREQ_APP_DEP:
1010 case FGPositioned::FREQ_ENROUTE:
1011 case FGPositioned::FREQ_CLEARANCE:
1012 case FGPositioned::FREQ_UNICOM:
1013 return loadComm(rowid, ty, ident, name, pos, aptId);
1015 case FGPositioned::TAXI_NODE:
1016 return loadTaxiNode(rowid, pos, aptId);
1018 case FGPositioned::PARKING:
1019 return loadParking(rowid, ident, pos, aptId);
1027 static NavDataCache* static_instance = NULL;
1029 NavDataCache::NavDataCache()
1031 const int MAX_TRIES = 3;
1032 SGPath homePath(globals->get_fg_home());
1033 homePath.append("navdata.cache");
1035 for (int t=0; t < MAX_TRIES; ++t) {
1037 d.reset(new NavDataCachePrivate(homePath, this));
1039 //d->checkCacheFile();
1040 // reached this point with no exception, success
1042 } catch (sg_exception& e) {
1043 SG_LOG(SG_NAVCACHE, t == 0 ? SG_WARN : SG_ALERT, "NavCache: init failed:" << e.what()
1044 << " (attempt " << t << ")");
1050 double RADIUS_EARTH_M = 7000 * 1000.0; // 7000km is plenty
1051 SGVec3d earthExtent(RADIUS_EARTH_M, RADIUS_EARTH_M, RADIUS_EARTH_M);
1052 Octree::global_spatialOctree =
1053 new Octree::Branch(SGBox<double>(-earthExtent, earthExtent), 1);
1055 d->aptDatPath = SGPath(globals->get_fg_root());
1056 d->aptDatPath.append("Airports/apt.dat.gz");
1058 d->metarDatPath = SGPath(globals->get_fg_root());
1059 d->metarDatPath.append("Airports/metar.dat.gz");
1061 d->navDatPath = SGPath(globals->get_fg_root());
1062 d->navDatPath.append("Navaids/nav.dat.gz");
1064 d->fixDatPath = SGPath(globals->get_fg_root());
1065 d->fixDatPath.append("Navaids/fix.dat.gz");
1067 d->carrierDatPath = SGPath(globals->get_fg_root());
1068 d->carrierDatPath.append("Navaids/carrier_nav.dat.gz");
1070 d->airwayDatPath = SGPath(globals->get_fg_root());
1071 d->airwayDatPath.append("Navaids/awy.dat.gz");
1074 NavDataCache::~NavDataCache()
1076 assert(static_instance == this);
1077 static_instance = NULL;
1078 SG_LOG(SG_NAVCACHE, SG_INFO, "closing the navcache");
1082 NavDataCache* NavDataCache::instance()
1084 if (!static_instance) {
1085 static_instance = new NavDataCache;
1088 return static_instance;
1091 bool NavDataCache::isRebuildRequired()
1093 if (isCachedFileModified(d->aptDatPath) ||
1094 isCachedFileModified(d->metarDatPath) ||
1095 isCachedFileModified(d->navDatPath) ||
1096 isCachedFileModified(d->fixDatPath) ||
1097 isCachedFileModified(d->airwayDatPath))
1099 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: main cache rebuild required");
1103 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: no main cache rebuild required");
1107 bool NavDataCache::rebuild()
1109 if (!d->rebuilder.get()) {
1110 d->rebuilder.reset(new RebuildThread(this));
1111 d->rebuilder->start();
1114 // poll the rebuild thread
1115 bool fin = d->rebuilder->isFinished();
1117 d->rebuilder.reset(); // all done!
1122 void NavDataCache::doRebuild()
1126 d->runSQL("DELETE FROM positioned");
1127 d->runSQL("DELETE FROM airport");
1128 d->runSQL("DELETE FROM runway");
1129 d->runSQL("DELETE FROM navaid");
1130 d->runSQL("DELETE FROM comm");
1131 d->runSQL("DELETE FROM octree");
1132 d->runSQL("DELETE FROM airway");
1133 d->runSQL("DELETE FROM airway_edge");
1134 d->runSQL("DELETE FROM taxi_node");
1135 d->runSQL("DELETE FROM parking");
1136 d->runSQL("DELETE FROM groundnet_edge");
1137 d->runSQL("DELETE FROM stat_cache");
1139 // initialise the root octree node
1140 d->runSQL("INSERT INTO octree (rowid, children) VALUES (1, 0)");
1145 airportDBLoad(d->aptDatPath);
1146 SG_LOG(SG_NAVCACHE, SG_INFO, "apt.dat load took:" << st.elapsedMSec());
1148 metarDataLoad(d->metarDatPath);
1149 stampCacheFile(d->aptDatPath);
1150 stampCacheFile(d->metarDatPath);
1153 loadFixes(d->fixDatPath);
1154 stampCacheFile(d->fixDatPath);
1155 SG_LOG(SG_NAVCACHE, SG_INFO, "fix.dat load took:" << st.elapsedMSec());
1158 navDBInit(d->navDatPath);
1159 stampCacheFile(d->navDatPath);
1160 SG_LOG(SG_NAVCACHE, SG_INFO, "nav.dat load took:" << st.elapsedMSec());
1162 loadCarrierNav(d->carrierDatPath);
1163 stampCacheFile(d->carrierDatPath);
1166 Airway::load(d->airwayDatPath);
1167 stampCacheFile(d->airwayDatPath);
1168 SG_LOG(SG_NAVCACHE, SG_INFO, "awy.dat load took:" << st.elapsedMSec());
1170 d->flushDeferredOctreeUpdates();
1172 d->runSQL("COMMIT");
1173 } catch (sg_exception& e) {
1174 SG_LOG(SG_NAVCACHE, SG_ALERT, "caught exception rebuilding navCache:" << e.what());
1175 // abandon the DB transation completely
1176 d->runSQL("ROLLBACK");
1180 int NavDataCache::readIntProperty(const string& key)
1182 d->reset(d->readPropertyQuery);
1183 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1185 if (d->execSelect(d->readPropertyQuery)) {
1186 return sqlite3_column_int(d->readPropertyQuery, 0);
1188 SG_LOG(SG_NAVCACHE, SG_WARN, "readIntProperty: unknown:" << key);
1189 return 0; // no such property
1193 double NavDataCache::readDoubleProperty(const string& key)
1195 d->reset(d->readPropertyQuery);
1196 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1197 if (d->execSelect(d->readPropertyQuery)) {
1198 return sqlite3_column_double(d->readPropertyQuery, 0);
1200 SG_LOG(SG_NAVCACHE, SG_WARN, "readDoubleProperty: unknown:" << key);
1201 return 0.0; // no such property
1205 string NavDataCache::readStringProperty(const string& key)
1207 d->reset(d->readPropertyQuery);
1208 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1209 if (d->execSelect(d->readPropertyQuery)) {
1210 return (char*) sqlite3_column_text(d->readPropertyQuery, 0);
1212 SG_LOG(SG_NAVCACHE, SG_WARN, "readStringProperty: unknown:" << key);
1213 return string(); // no such property
1217 void NavDataCache::writeIntProperty(const string& key, int value)
1219 d->writeIntProperty(key, value);
1222 void NavDataCache::writeStringProperty(const string& key, const string& value)
1224 d->reset(d->writePropertyQuery);
1225 sqlite_bind_stdstring(d->writePropertyQuery, 1, key);
1226 sqlite_bind_stdstring(d->writePropertyQuery, 2, value);
1227 d->execSelect(d->writePropertyQuery);
1230 void NavDataCache::writeDoubleProperty(const string& key, const double& value)
1232 d->reset(d->writePropertyQuery);
1233 sqlite_bind_stdstring(d->writePropertyQuery, 1, key);
1234 sqlite3_bind_double(d->writePropertyQuery, 2, value);
1235 d->execSelect(d->writePropertyQuery);
1238 string_list NavDataCache::readStringListProperty(const string& key)
1240 d->reset(d->readPropertyQuery);
1241 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1243 while (d->stepSelect(d->readPropertyQuery)) {
1244 result.push_back((char*) sqlite3_column_text(d->readPropertyQuery, 0));
1250 void NavDataCache::writeStringListProperty(const string& key, const string_list& values)
1252 d->reset(d->clearProperty);
1253 sqlite_bind_stdstring(d->clearProperty, 1, key);
1254 d->execUpdate(d->clearProperty);
1256 BOOST_FOREACH(string value, values) {
1257 d->reset(d->writePropertyMulti);
1258 sqlite_bind_stdstring(d->writePropertyMulti, 1, key);
1259 sqlite_bind_stdstring(d->writePropertyMulti, 2, value);
1260 d->execInsert(d->writePropertyMulti);
1264 bool NavDataCache::isCachedFileModified(const SGPath& path) const
1266 if (!path.exists()) {
1267 throw sg_io_exception("isCachedFileModified: Missing file:" + path.str());
1270 d->reset(d->statCacheCheck);
1271 sqlite_bind_temp_stdstring(d->statCacheCheck, 1, path.str());
1272 if (d->execSelect(d->statCacheCheck)) {
1273 time_t modtime = sqlite3_column_int64(d->statCacheCheck, 0);
1274 time_t delta = std::labs(modtime - path.modTime());
1277 SG_LOG(SG_NAVCACHE, SG_DEBUG, "NavCache: rebuild required for " << path << ". Timestamps: " << modtime << " != " << path.modTime());
1280 // File system time stamp has slightly changed. It's unlikely that the user has managed to change a file, start fgfs,
1281 // and then changed file again within x seconds - so it's suspicious...
1282 SG_LOG(SG_NAVCACHE, SG_ALERT, "NavCache: suspicious file timestamp change. Please report this to FlightGear. "
1283 << "Delta: " << delta << ", Timestamps: " << modtime << ", " << path.modTime() << ", path: " << path);
1288 SG_LOG(SG_NAVCACHE, SG_DEBUG, "NavCache: no rebuild required for " << path);
1290 return (delta != 0);
1292 SG_LOG(SG_NAVCACHE, SG_DEBUG, "NavCache: initial build required for " << path);
1297 void NavDataCache::stampCacheFile(const SGPath& path)
1299 d->reset(d->stampFileCache);
1300 sqlite_bind_temp_stdstring(d->stampFileCache, 1, path.str());
1301 sqlite3_bind_int64(d->stampFileCache, 2, path.modTime());
1302 d->execInsert(d->stampFileCache);
1305 void NavDataCache::beginTransaction()
1310 void NavDataCache::commitTransaction()
1312 d->runSQL("COMMIT");
1315 void NavDataCache::abortTransaction()
1317 d->runSQL("ROLLBACK");
1320 FGPositioned* NavDataCache::loadById(PositionedID rowid)
1326 PositionedCache::iterator it = d->cache.find(rowid);
1327 if (it != d->cache.end()) {
1329 return it->second; // cache it
1332 d->reset(d->loadPositioned);
1333 sqlite3_bind_int64(d->loadPositioned, 1, rowid);
1334 FGPositioned* pos = d->loadFromStmt(d->loadPositioned);
1336 d->cache.insert(it, PositionedCache::value_type(rowid, pos));
1342 PositionedID NavDataCache::insertAirport(FGPositioned::Type ty, const string& ident,
1345 // airports have their pos computed based on the avergae runway centres
1346 // so the pos isn't available immediately. Pass a dummy pos and avoid
1347 // doing spatial indexing until later
1348 sqlite3_int64 rowId = d->insertPositioned(ty, ident, name, SGGeod(),
1350 false /* spatial index */);
1352 d->reset(d->insertAirport);
1353 sqlite3_bind_int64(d->insertAirport, 1, rowId);
1354 d->execInsert(d->insertAirport);
1359 void NavDataCache::updatePosition(PositionedID item, const SGGeod &pos)
1361 if (d->cache.find(item) != d->cache.end()) {
1362 SG_LOG(SG_NAVCACHE, SG_DEBUG, "updating position of an item in the cache");
1363 d->cache[item]->modifyPosition(pos);
1366 SGVec3d cartPos(SGVec3d::fromGeod(pos));
1368 d->reset(d->setAirportPos);
1369 sqlite3_bind_int(d->setAirportPos, 1, item);
1370 sqlite3_bind_double(d->setAirportPos, 2, pos.getLongitudeDeg());
1371 sqlite3_bind_double(d->setAirportPos, 3, pos.getLatitudeDeg());
1372 sqlite3_bind_double(d->setAirportPos, 4, pos.getElevationM());
1374 // bug 905; the octree leaf may change here, but the leaf may already be
1375 // loaded, and caching its children. (Either the old or new leaf!). Worse,
1376 // we may be called here as a result of loading one of those leaf's children.
1377 // instead of dealing with all those possibilites, such as modifying
1378 // the in-memory leaf's STL child container, we simply leave the runtime
1379 // structures alone. This is fine providing items do no move very far, since
1380 // all the spatial searches ultimately use the items' real cartesian position,
1381 // which was updated above.
1382 Octree::Leaf* octreeLeaf = Octree::global_spatialOctree->findLeafForPos(cartPos);
1383 sqlite3_bind_int64(d->setAirportPos, 5, octreeLeaf->guid());
1385 sqlite3_bind_double(d->setAirportPos, 6, cartPos.x());
1386 sqlite3_bind_double(d->setAirportPos, 7, cartPos.y());
1387 sqlite3_bind_double(d->setAirportPos, 8, cartPos.z());
1390 d->execUpdate(d->setAirportPos);
1393 void NavDataCache::insertTower(PositionedID airportId, const SGGeod& pos)
1395 d->insertPositioned(FGPositioned::TOWER, string(), string(),
1396 pos, airportId, true /* spatial index */);
1400 NavDataCache::insertRunway(FGPositioned::Type ty, const string& ident,
1401 const SGGeod& pos, PositionedID apt,
1402 double heading, double length, double width, double displacedThreshold,
1403 double stopway, int surfaceCode)
1405 // only runways are spatially indexed; don't bother indexing taxiways
1407 bool spatialIndex = (ty == FGPositioned::RUNWAY);
1409 sqlite3_int64 rowId = d->insertPositioned(ty, cleanRunwayNo(ident), "", pos, apt,
1411 d->reset(d->insertRunway);
1412 sqlite3_bind_int64(d->insertRunway, 1, rowId);
1413 sqlite3_bind_double(d->insertRunway, 2, heading);
1414 sqlite3_bind_double(d->insertRunway, 3, length);
1415 sqlite3_bind_double(d->insertRunway, 4, width);
1416 sqlite3_bind_int(d->insertRunway, 5, surfaceCode);
1417 sqlite3_bind_double(d->insertRunway, 6, displacedThreshold);
1418 sqlite3_bind_double(d->insertRunway, 7, stopway);
1420 return d->execInsert(d->insertRunway);
1423 void NavDataCache::setRunwayReciprocal(PositionedID runway, PositionedID recip)
1425 d->reset(d->setRunwayReciprocal);
1426 sqlite3_bind_int64(d->setRunwayReciprocal, 1, runway);
1427 sqlite3_bind_int64(d->setRunwayReciprocal, 2, recip);
1428 d->execUpdate(d->setRunwayReciprocal);
1430 // and the opposite direction too!
1431 d->reset(d->setRunwayReciprocal);
1432 sqlite3_bind_int64(d->setRunwayReciprocal, 2, runway);
1433 sqlite3_bind_int64(d->setRunwayReciprocal, 1, recip);
1434 d->execUpdate(d->setRunwayReciprocal);
1437 void NavDataCache::setRunwayILS(PositionedID runway, PositionedID ils)
1439 d->reset(d->setRunwayILS);
1440 sqlite3_bind_int64(d->setRunwayILS, 1, runway);
1441 sqlite3_bind_int64(d->setRunwayILS, 2, ils);
1442 d->execUpdate(d->setRunwayILS);
1445 void NavDataCache::updateRunwayThreshold(PositionedID runwayID, const SGGeod &aThreshold,
1446 double aHeading, double aDisplacedThreshold,
1449 // update the runway information
1450 d->reset(d->updateRunwayThreshold);
1451 sqlite3_bind_int64(d->updateRunwayThreshold, 1, runwayID);
1452 sqlite3_bind_double(d->updateRunwayThreshold, 2, aHeading);
1453 sqlite3_bind_double(d->updateRunwayThreshold, 3, aDisplacedThreshold);
1454 sqlite3_bind_double(d->updateRunwayThreshold, 4, aStopway);
1455 d->execUpdate(d->updateRunwayThreshold);
1457 // compute the new runway center, based on the threshold lat/lon and length,
1458 double offsetFt = (0.5 * d->runwayLengthFt(runwayID));
1461 SGGeodesy::direct(aThreshold, aHeading, offsetFt * SG_FEET_TO_METER, newCenter, dummy);
1463 // now update the positional data
1464 updatePosition(runwayID, newCenter);
1468 NavDataCache::insertNavaid(FGPositioned::Type ty, const string& ident,
1469 const string& name, const SGGeod& pos,
1470 int freq, int range, double multiuse,
1471 PositionedID apt, PositionedID runway)
1473 bool spatialIndex = true;
1474 if (ty == FGPositioned::MOBILE_TACAN) {
1475 spatialIndex = false;
1478 sqlite3_int64 rowId = d->insertPositioned(ty, ident, name, pos, apt,
1480 d->reset(d->insertNavaid);
1481 sqlite3_bind_int64(d->insertNavaid, 1, rowId);
1482 sqlite3_bind_int(d->insertNavaid, 2, freq);
1483 sqlite3_bind_int(d->insertNavaid, 3, range);
1484 sqlite3_bind_double(d->insertNavaid, 4, multiuse);
1485 sqlite3_bind_int64(d->insertNavaid, 5, runway);
1486 return d->execInsert(d->insertNavaid);
1489 void NavDataCache::updateILS(PositionedID ils, const SGGeod& newPos, double aHdg)
1491 d->reset(d->updateILS);
1492 sqlite3_bind_int64(d->updateILS, 1, ils);
1493 sqlite3_bind_double(d->updateILS, 2, aHdg);
1494 d->execUpdate(d->updateILS);
1495 updatePosition(ils, newPos);
1498 PositionedID NavDataCache::insertCommStation(FGPositioned::Type ty,
1499 const string& name, const SGGeod& pos, int freq, int range,
1502 sqlite3_int64 rowId = d->insertPositioned(ty, "", name, pos, apt, true);
1503 d->reset(d->insertCommStation);
1504 sqlite3_bind_int64(d->insertCommStation, 1, rowId);
1505 sqlite3_bind_int(d->insertCommStation, 2, freq);
1506 sqlite3_bind_int(d->insertCommStation, 3, range);
1507 return d->execInsert(d->insertCommStation);
1510 PositionedID NavDataCache::insertFix(const std::string& ident, const SGGeod& aPos)
1512 return d->insertPositioned(FGPositioned::FIX, ident, string(), aPos, 0, true);
1515 PositionedID NavDataCache::createUserWaypoint(const std::string& ident, const SGGeod& aPos)
1517 return d->insertPositioned(FGPositioned::WAYPOINT, ident, string(), aPos, 0,
1518 true /* spatial index */);
1521 void NavDataCache::setAirportMetar(const string& icao, bool hasMetar)
1523 d->reset(d->setAirportMetar);
1524 sqlite_bind_stdstring(d->setAirportMetar, 1, icao);
1525 sqlite3_bind_int(d->setAirportMetar, 2, hasMetar);
1526 d->execUpdate(d->setAirportMetar);
1529 FGPositioned::List NavDataCache::findAllWithIdent(const string& s,
1530 FGPositioned::Filter* filter, bool exact)
1532 return d->findAllByString(s, "ident", filter, exact);
1535 FGPositioned::List NavDataCache::findAllWithName(const string& s,
1536 FGPositioned::Filter* filter, bool exact)
1538 return d->findAllByString(s, "name", filter, exact);
1541 FGPositionedRef NavDataCache::findClosestWithIdent(const string& aIdent,
1542 const SGGeod& aPos, FGPositioned::Filter* aFilter)
1544 d->reset(d->findClosestWithIdent);
1545 sqlite_bind_stdstring(d->findClosestWithIdent, 1, aIdent);
1547 sqlite3_bind_int(d->findClosestWithIdent, 2, aFilter->minType());
1548 sqlite3_bind_int(d->findClosestWithIdent, 3, aFilter->maxType());
1549 } else { // full type range
1550 sqlite3_bind_int(d->findClosestWithIdent, 2, FGPositioned::INVALID);
1551 sqlite3_bind_int(d->findClosestWithIdent, 3, FGPositioned::LAST_TYPE);
1554 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1555 sqlite3_bind_double(d->findClosestWithIdent, 4, cartPos.x());
1556 sqlite3_bind_double(d->findClosestWithIdent, 5, cartPos.y());
1557 sqlite3_bind_double(d->findClosestWithIdent, 6, cartPos.z());
1559 while (d->stepSelect(d->findClosestWithIdent)) {
1560 FGPositioned* pos = loadById(sqlite3_column_int64(d->findClosestWithIdent, 0));
1561 if (aFilter && !aFilter->pass(pos)) {
1568 return NULL; // no matches at all
1572 int NavDataCache::getOctreeBranchChildren(int64_t octreeNodeId)
1574 d->reset(d->getOctreeChildren);
1575 sqlite3_bind_int64(d->getOctreeChildren, 1, octreeNodeId);
1576 d->execSelect1(d->getOctreeChildren);
1577 return sqlite3_column_int(d->getOctreeChildren, 0);
1580 void NavDataCache::defineOctreeNode(Octree::Branch* pr, Octree::Node* nd)
1582 d->reset(d->insertOctree);
1583 sqlite3_bind_int64(d->insertOctree, 1, nd->guid());
1584 d->execInsert(d->insertOctree);
1586 #ifdef LAZY_OCTREE_UPDATES
1587 d->deferredOctreeUpdates.insert(pr);
1589 // lowest three bits of node ID are 0..7 index of the child in the parent
1590 int childIndex = nd->guid() & 0x07;
1592 d->reset(d->updateOctreeChildren);
1593 sqlite3_bind_int64(d->updateOctreeChildren, 1, pr->guid());
1594 // mask has bit N set where child N exists
1595 int childMask = 1 << childIndex;
1596 sqlite3_bind_int(d->updateOctreeChildren, 2, childMask);
1597 d->execUpdate(d->updateOctreeChildren);
1602 NavDataCache::getOctreeLeafChildren(int64_t octreeNodeId)
1604 d->reset(d->getOctreeLeafChildren);
1605 sqlite3_bind_int64(d->getOctreeLeafChildren, 1, octreeNodeId);
1607 TypedPositionedVec r;
1608 while (d->stepSelect(d->getOctreeLeafChildren)) {
1609 FGPositioned::Type ty = static_cast<FGPositioned::Type>
1610 (sqlite3_column_int(d->getOctreeLeafChildren, 1));
1611 r.push_back(std::make_pair(ty,
1612 sqlite3_column_int64(d->getOctreeLeafChildren, 0)));
1620 * A special purpose helper (used by FGAirport::searchNamesAndIdents) to
1621 * implement the AirportList dialog. It's unfortunate that it needs to reside
1622 * here, but for now it's least ugly solution.
1624 char** NavDataCache::searchAirportNamesAndIdents(const std::string& aFilter)
1626 d->reset(d->searchAirports);
1627 string s = "%" + aFilter + "%";
1628 sqlite_bind_stdstring(d->searchAirports, 1, s);
1630 unsigned int numMatches = 0, numAllocated = 16;
1631 char** result = (char**) malloc(sizeof(char*) * numAllocated);
1633 while (d->stepSelect(d->searchAirports)) {
1634 if ((numMatches + 1) >= numAllocated) {
1635 numAllocated <<= 1; // double in size!
1636 // reallocate results array
1637 char** nresult = (char**) malloc(sizeof(char*) * numAllocated);
1638 memcpy(nresult, result, sizeof(char*) * numMatches);
1643 // nasty code to avoid excessive string copying and allocations.
1644 // We format results as follows (note whitespace!):
1645 // ' name-of-airport-chars (ident)'
1646 // so the total length is:
1647 // 1 + strlen(name) + 4 + strlen(icao) + 1 + 1 (for the null)
1648 // which gives a grand total of 7 + name-length + icao-length.
1649 // note the ident can be three letters (non-ICAO local strip), four
1650 // (default ICAO) or more (extended format ICAO)
1651 int nameLength = sqlite3_column_bytes(d->searchAirports, 1);
1652 int icaoLength = sqlite3_column_bytes(d->searchAirports, 0);
1653 char* entry = (char*) malloc(7 + nameLength + icaoLength);
1656 memcpy(dst, sqlite3_column_text(d->searchAirports, 1), nameLength);
1662 memcpy(dst, sqlite3_column_text(d->searchAirports, 0), icaoLength);
1667 result[numMatches++] = entry;
1670 result[numMatches] = NULL; // end of list marker
1675 NavDataCache::findCommByFreq(int freqKhz, const SGGeod& aPos, FGPositioned::Filter* aFilter)
1677 d->reset(d->findCommByFreq);
1678 sqlite3_bind_int(d->findCommByFreq, 1, freqKhz);
1680 sqlite3_bind_int(d->findCommByFreq, 2, aFilter->minType());
1681 sqlite3_bind_int(d->findCommByFreq, 3, aFilter->maxType());
1682 } else { // full type range
1683 sqlite3_bind_int(d->findCommByFreq, 2, FGPositioned::FREQ_GROUND);
1684 sqlite3_bind_int(d->findCommByFreq, 3, FGPositioned::FREQ_UNICOM);
1687 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1688 sqlite3_bind_double(d->findCommByFreq, 4, cartPos.x());
1689 sqlite3_bind_double(d->findCommByFreq, 5, cartPos.y());
1690 sqlite3_bind_double(d->findCommByFreq, 6, cartPos.z());
1692 while (d->execSelect(d->findCommByFreq)) {
1693 FGPositioned* p = loadById(sqlite3_column_int64(d->findCommByFreq, 0));
1694 if (aFilter && !aFilter->pass(p)) {
1705 NavDataCache::findNavaidsByFreq(int freqKhz, const SGGeod& aPos, FGPositioned::Filter* aFilter)
1707 d->reset(d->findNavsByFreq);
1708 sqlite3_bind_int(d->findNavsByFreq, 1, freqKhz);
1710 sqlite3_bind_int(d->findNavsByFreq, 2, aFilter->minType());
1711 sqlite3_bind_int(d->findNavsByFreq, 3, aFilter->maxType());
1712 } else { // full type range
1713 sqlite3_bind_int(d->findNavsByFreq, 2, FGPositioned::NDB);
1714 sqlite3_bind_int(d->findNavsByFreq, 3, FGPositioned::GS);
1717 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1718 sqlite3_bind_double(d->findNavsByFreq, 4, cartPos.x());
1719 sqlite3_bind_double(d->findNavsByFreq, 5, cartPos.y());
1720 sqlite3_bind_double(d->findNavsByFreq, 6, cartPos.z());
1722 return d->selectIds(d->findNavsByFreq);
1726 NavDataCache::findNavaidsByFreq(int freqKhz, FGPositioned::Filter* aFilter)
1728 d->reset(d->findNavsByFreqNoPos);
1729 sqlite3_bind_int(d->findNavsByFreqNoPos, 1, freqKhz);
1731 sqlite3_bind_int(d->findNavsByFreqNoPos, 2, aFilter->minType());
1732 sqlite3_bind_int(d->findNavsByFreqNoPos, 3, aFilter->maxType());
1733 } else { // full type range
1734 sqlite3_bind_int(d->findNavsByFreqNoPos, 2, FGPositioned::NDB);
1735 sqlite3_bind_int(d->findNavsByFreqNoPos, 3, FGPositioned::GS);
1738 return d->selectIds(d->findNavsByFreqNoPos);
1742 NavDataCache::airportItemsOfType(PositionedID apt,FGPositioned::Type ty,
1743 FGPositioned::Type maxTy)
1745 if (maxTy == FGPositioned::INVALID) {
1746 maxTy = ty; // single-type range
1749 d->reset(d->getAirportItems);
1750 sqlite3_bind_int64(d->getAirportItems, 1, apt);
1751 sqlite3_bind_int(d->getAirportItems, 2, ty);
1752 sqlite3_bind_int(d->getAirportItems, 3, maxTy);
1754 return d->selectIds(d->getAirportItems);
1758 NavDataCache::airportItemWithIdent(PositionedID apt, FGPositioned::Type ty,
1759 const std::string& ident)
1761 d->reset(d->getAirportItemByIdent);
1762 sqlite3_bind_int64(d->getAirportItemByIdent, 1, apt);
1763 sqlite_bind_stdstring(d->getAirportItemByIdent, 2, ident);
1764 sqlite3_bind_int(d->getAirportItemByIdent, 3, ty);
1766 if (!d->execSelect(d->getAirportItemByIdent)) {
1770 return sqlite3_column_int64(d->getAirportItemByIdent, 0);
1774 NavDataCache::findAirportRunway(const std::string& aName)
1776 if (aName.empty()) {
1777 return AirportRunwayPair();
1780 string_list parts = simgear::strutils::split(aName);
1781 if (parts.size() < 2) {
1782 SG_LOG(SG_NAVCACHE, SG_WARN, "findAirportRunway: malformed name:" << aName);
1783 return AirportRunwayPair();
1786 d->reset(d->findAirportRunway);
1787 sqlite_bind_stdstring(d->findAirportRunway, 1, parts[0]);
1788 sqlite_bind_stdstring(d->findAirportRunway, 2, parts[1]);
1789 if (!d->execSelect(d->findAirportRunway)) {
1790 SG_LOG(SG_NAVCACHE, SG_WARN, "findAirportRunway: unknown airport/runway:" << aName);
1791 return AirportRunwayPair();
1794 // success, extract the IDs and continue
1795 return AirportRunwayPair(sqlite3_column_int64(d->findAirportRunway, 0),
1796 sqlite3_column_int64(d->findAirportRunway, 1));
1800 NavDataCache::findILS(PositionedID airport, const string& runway, const string& navIdent)
1802 d->reset(d->findILS);
1803 sqlite_bind_stdstring(d->findILS, 1, navIdent);
1804 sqlite3_bind_int64(d->findILS, 2, airport);
1805 sqlite_bind_stdstring(d->findILS, 3, runway);
1807 if (!d->execSelect(d->findILS)) {
1811 return sqlite3_column_int64(d->findILS, 0);
1814 int NavDataCache::findAirway(int network, const string& aName)
1816 d->reset(d->findAirway);
1817 sqlite3_bind_int(d->findAirway, 1, network);
1818 sqlite_bind_stdstring(d->findAirway, 2, aName);
1819 if (d->execSelect(d->findAirway)) {
1821 return sqlite3_column_int(d->findAirway, 0);
1824 d->reset(d->insertAirway);
1825 sqlite_bind_stdstring(d->insertAirway, 1, aName);
1826 sqlite3_bind_int(d->insertAirway, 2, network);
1827 return d->execInsert(d->insertAirway);
1830 void NavDataCache::insertEdge(int network, int airwayID, PositionedID from, PositionedID to)
1832 // assume all edges are bidirectional for the moment
1833 for (int i=0; i<2; ++i) {
1834 d->reset(d->insertAirwayEdge);
1835 sqlite3_bind_int(d->insertAirwayEdge, 1, network);
1836 sqlite3_bind_int(d->insertAirwayEdge, 2, airwayID);
1837 sqlite3_bind_int64(d->insertAirwayEdge, 3, from);
1838 sqlite3_bind_int64(d->insertAirwayEdge, 4, to);
1839 d->execInsert(d->insertAirwayEdge);
1841 std::swap(from, to);
1845 bool NavDataCache::isInAirwayNetwork(int network, PositionedID pos)
1847 d->reset(d->isPosInAirway);
1848 sqlite3_bind_int(d->isPosInAirway, 1, network);
1849 sqlite3_bind_int64(d->isPosInAirway, 2, pos);
1850 bool ok = d->execSelect(d->isPosInAirway);
1854 AirwayEdgeVec NavDataCache::airwayEdgesFrom(int network, PositionedID pos)
1856 d->reset(d->airwayEdgesFrom);
1857 sqlite3_bind_int(d->airwayEdgesFrom, 1, network);
1858 sqlite3_bind_int64(d->airwayEdgesFrom, 2, pos);
1860 AirwayEdgeVec result;
1861 while (d->stepSelect(d->airwayEdgesFrom)) {
1862 result.push_back(AirwayEdge(
1863 sqlite3_column_int(d->airwayEdgesFrom, 0),
1864 sqlite3_column_int64(d->airwayEdgesFrom, 1)
1870 PositionedID NavDataCache::findNavaidForRunway(PositionedID runway, FGPositioned::Type ty)
1872 d->reset(d->findNavaidForRunway);
1873 sqlite3_bind_int64(d->findNavaidForRunway, 1, runway);
1874 sqlite3_bind_int(d->findNavaidForRunway, 2, ty);
1875 if (!d->execSelect(d->findNavaidForRunway)) {
1879 return sqlite3_column_int64(d->findNavaidForRunway, 0);
1883 NavDataCache::insertParking(const std::string& name, const SGGeod& aPos,
1884 PositionedID aAirport,
1885 double aHeading, int aRadius, const std::string& aAircraftType,
1886 const std::string& aAirlines)
1888 sqlite3_int64 rowId = d->insertPositioned(FGPositioned::PARKING, name, "", aPos, aAirport, false);
1890 // we need to insert a row into the taxi_node table, otherwise we can't maintain
1891 // the appropriate pushback flag.
1892 d->reset(d->insertTaxiNode);
1893 sqlite3_bind_int64(d->insertTaxiNode, 1, rowId);
1894 sqlite3_bind_int(d->insertTaxiNode, 2, 0);
1895 sqlite3_bind_int(d->insertTaxiNode, 3, 0);
1896 d->execInsert(d->insertTaxiNode);
1898 d->reset(d->insertParkingPos);
1899 sqlite3_bind_int64(d->insertParkingPos, 1, rowId);
1900 sqlite3_bind_double(d->insertParkingPos, 2, aHeading);
1901 sqlite3_bind_int(d->insertParkingPos, 3, aRadius);
1902 sqlite_bind_stdstring(d->insertParkingPos, 4, aAircraftType);
1903 sqlite_bind_stdstring(d->insertParkingPos, 5, aAirlines);
1904 return d->execInsert(d->insertParkingPos);
1907 void NavDataCache::setParkingPushBackRoute(PositionedID parking, PositionedID pushBackNode)
1909 d->reset(d->setParkingPushBack);
1910 sqlite3_bind_int64(d->setParkingPushBack, 1, parking);
1911 sqlite3_bind_int64(d->setParkingPushBack, 2, pushBackNode);
1912 d->execUpdate(d->setParkingPushBack);
1916 NavDataCache::insertTaxiNode(const SGGeod& aPos, PositionedID aAirport, int aHoldType, bool aOnRunway)
1918 sqlite3_int64 rowId = d->insertPositioned(FGPositioned::TAXI_NODE, string(), string(), aPos, aAirport, false);
1919 d->reset(d->insertTaxiNode);
1920 sqlite3_bind_int64(d->insertTaxiNode, 1, rowId);
1921 sqlite3_bind_int(d->insertTaxiNode, 2, aHoldType);
1922 sqlite3_bind_int(d->insertTaxiNode, 3, aOnRunway);
1923 return d->execInsert(d->insertTaxiNode);
1926 void NavDataCache::insertGroundnetEdge(PositionedID aAirport, PositionedID from, PositionedID to)
1928 d->reset(d->insertTaxiEdge);
1929 sqlite3_bind_int64(d->insertTaxiEdge, 1, aAirport);
1930 sqlite3_bind_int64(d->insertTaxiEdge, 2, from);
1931 sqlite3_bind_int64(d->insertTaxiEdge, 3, to);
1932 d->execInsert(d->insertTaxiEdge);
1935 PositionedIDVec NavDataCache::groundNetNodes(PositionedID aAirport, bool onlyPushback)
1937 sqlite3_stmt_ptr q = onlyPushback ? d->airportPushbackNodes : d->airportTaxiNodes;
1939 sqlite3_bind_int64(q, 1, aAirport);
1940 return d->selectIds(q);
1943 void NavDataCache::markGroundnetAsPushback(PositionedID nodeId)
1945 d->reset(d->markTaxiNodeAsPushback);
1946 sqlite3_bind_int64(d->markTaxiNodeAsPushback, 1, nodeId);
1947 d->execUpdate(d->markTaxiNodeAsPushback);
1950 static double headingDifferenceDeg(double crs1, double crs2)
1952 double diff = crs2 - crs1;
1953 SG_NORMALIZE_RANGE(diff, -180.0, 180.0);
1957 PositionedID NavDataCache::findGroundNetNode(PositionedID airport, const SGGeod& aPos,
1958 bool onRunway, FGRunway* aRunway)
1960 sqlite3_stmt_ptr q = onRunway ? d->findNearestRunwayTaxiNode : d->findNearestTaxiNode;
1962 sqlite3_bind_int64(q, 1, airport);
1964 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1965 sqlite3_bind_double(q, 2, cartPos.x());
1966 sqlite3_bind_double(q, 3, cartPos.y());
1967 sqlite3_bind_double(q, 4, cartPos.z());
1969 while (d->execSelect(q)) {
1970 PositionedID id = sqlite3_column_int64(q, 0);
1975 // ensure found node lies on the runway
1976 FGPositionedRef node = loadById(id);
1977 double course = SGGeodesy::courseDeg(node->geod(), aRunway->end());
1978 if (fabs(headingDifferenceDeg(course, aRunway->headingDeg())) < 3.0 ) {
1986 PositionedIDVec NavDataCache::groundNetEdgesFrom(PositionedID pos, bool onlyPushback)
1988 sqlite3_stmt_ptr q = onlyPushback ? d->pushbackEdgesFrom : d->taxiEdgesFrom;
1990 sqlite3_bind_int64(q, 1, pos);
1991 return d->selectIds(q);
1994 PositionedIDVec NavDataCache::findAirportParking(PositionedID airport, const std::string& flightType,
1997 d->reset(d->findAirportParking);
1998 sqlite3_bind_int64(d->findAirportParking, 1, airport);
1999 sqlite3_bind_int(d->findAirportParking, 2, radius);
2000 sqlite_bind_stdstring(d->findAirportParking, 3, flightType);
2002 return d->selectIds(d->findAirportParking);
2005 void NavDataCache::dropGroundnetFor(PositionedID aAirport)
2007 sqlite3_stmt_ptr q = d->prepare("DELETE FROM parking WHERE rowid IN (SELECT rowid FROM positioned WHERE type=?1 AND airport=?2)");
2008 sqlite3_bind_int(q, 1, FGPositioned::PARKING);
2009 sqlite3_bind_int64(q, 2, aAirport);
2012 q = d->prepare("DELETE FROM taxi_node WHERE rowid IN (SELECT rowid FROM positioned WHERE type=?1 AND airport=?2)");
2013 sqlite3_bind_int(q, 1, FGPositioned::TAXI_NODE);
2014 sqlite3_bind_int64(q, 2, aAirport);
2017 q = d->prepare("DELETE FROM positioned WHERE (type=?1 OR type=?2) AND airport=?3");
2018 sqlite3_bind_int(q, 1, FGPositioned::TAXI_NODE);
2019 sqlite3_bind_int(q, 2, FGPositioned::PARKING);
2020 sqlite3_bind_int64(q, 3, aAirport);
2023 q = d->prepare("DELETE FROM groundnet_edge WHERE airport=?1");
2024 sqlite3_bind_int64(q, 1, aAirport);
2028 } // of namespace flightgear