+++ /dev/null
-// runways.hxx -- a simple class to manage airport runway info
-//
-// Written by Curtis Olson, started August 2000.
-//
-// Copyright (C) 2000 Curtis L. Olson - curt@flightgear.org
-//
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-// General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-//
-// $Id$
-
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <math.h> // fabs()
-#include <stdio.h> // sprintf()
-
-#include <simgear/compiler.h>
-
-#include <simgear/debug/logstream.hxx>
-#include <simgear/misc/sgstream.hxx>
-
-#include STL_STRING
-#include STL_FUNCTIONAL
-#include STL_ALGORITHM
-
-#include "runways.hxx"
-
-SG_USING_NAMESPACE(std);
-
-
-FGRunway::FGRunway() {
-}
-
-
-FGRunway::~FGRunway() {
-}
-
-
-FGRunways::FGRunways( const string& file ) {
- // open the specified database readonly
- storage = new c4_Storage( file.c_str(), false );
-
- if ( !storage->Strategy().IsValid() ) {
- SG_LOG( SG_GENERAL, SG_ALERT, "Cannot open file: " << file );
- exit(-1);
- }
-
- vRunway = new c4_View;
- *vRunway =
- storage->GetAs("runway[ID:S,Rwy:S,Longitude:F,Latitude:F,Heading:F,Length:F,Width:F,SurfaceFlags:S,End1Flags:S,End2Flags:S]");
-
- next_index = 0;
-}
-
-
-// search for the specified apt id
-bool FGRunways::search( const string& aptid, FGRunway* r ) {
- c4_StringProp pID ("ID");
- c4_StringProp pRwy ("Rwy");
- c4_FloatProp pLon ("Longitude");
- c4_FloatProp pLat ("Latitude");
- c4_FloatProp pHdg ("Heading");
- c4_FloatProp pLen ("Length");
- c4_FloatProp pWid ("Width");
- c4_StringProp pSurf ("SurfaceFlags");
- c4_StringProp pEnd1 ("End1Flags");
- c4_StringProp pEnd2 ("End2Flags");
-
- int index = vRunway->Find(pID[aptid.c_str()]);
- // cout << "index = " << index << endl;
-
- if ( index == -1 ) {
- return false;
- }
-
- next_index = index + 1;
-
- c4_RowRef row = vRunway->GetAt(index);
-
- r->id = (const char *) pID(row);
- r->rwy_no = (const char *) pRwy(row);
- r->lon = (double) pLon(row);
- r->lat = (double) pLat(row);
- r->heading = (double) pHdg(row);
- r->length = (double) pLen(row);
- r->width = (double) pWid(row);
- r->surface_flags = (const char *) pSurf(row);
- r->end1_flags = (const char *) pEnd1(row);
- r->end2_flags = (const char *) pEnd2(row);
-
- return true;
-}
-
-
-// search for the specified apt id and runway no
-bool FGRunways::search( const string& aptid, const string& rwyno, FGRunway* r )
-{
- c4_StringProp pID ("ID");
- c4_StringProp pRwy ("Rwy");
- c4_FloatProp pLon ("Longitude");
- c4_FloatProp pLat ("Latitude");
- c4_FloatProp pHdg ("Heading");
- c4_FloatProp pLen ("Length");
- c4_FloatProp pWid ("Width");
- c4_StringProp pSurf ("SurfaceFlags");
- c4_StringProp pEnd1 ("End1Flags");
- c4_StringProp pEnd2 ("End2Flags");
-
- int index = vRunway->Find(pID[aptid.c_str()]);
- // cout << "index = " << index << endl;
-
- if ( index == -1 ) {
- return false;
- }
-
- c4_RowRef row = vRunway->GetAt(index);
- string rowid = (const char *) pID(row);
- string rowrwyno = (const char *) pRwy(row);
- while ( rowid == aptid ) {
- next_index = index + 1;
-
- if ( rowrwyno == rwyno ) {
- r->id = (const char *) pID(row);
- r->rwy_no = (const char *) pRwy(row);
- r->lon = (double) pLon(row);
- r->lat = (double) pLat(row);
- r->heading = (double) pHdg(row);
- r->length = (double) pLen(row);
- r->width = (double) pWid(row);
- r->surface_flags = (const char *) pSurf(row);
- r->end1_flags = (const char *) pEnd1(row);
- r->end2_flags = (const char *) pEnd2(row);
-
- return true;
- }
-
- index++;
- c4_RowRef row = vRunway->GetAt(index);
- string rowid = (const char *) pID(row);
- string rowrwyno = (const char *) pRwy(row);
- }
-
- return false;
-}
-
-
-FGRunway FGRunways::search( const string& aptid ) {
- FGRunway a;
- search( aptid, &a );
- return a;
-}
-
-
-// search for the specified id
-bool FGRunways::next( FGRunway* r ) {
- c4_StringProp pID ("ID");
- c4_StringProp pRwy ("Rwy");
- c4_FloatProp pLon ("Longitude");
- c4_FloatProp pLat ("Latitude");
- c4_FloatProp pHdg ("Heading");
- c4_FloatProp pLen ("Length");
- c4_FloatProp pWid ("Width");
- c4_StringProp pSurf ("SurfaceFlags");
- c4_StringProp pEnd1 ("End1Flags");
- c4_StringProp pEnd2 ("End2Flags");
-
- int size = vRunway->GetSize();
- // cout << "total records = " << size << endl;
-
- int index = next_index;
- // cout << "index = " << index << endl;
-
- if ( index == -1 || index >= size ) {
- return false;
- }
-
- next_index = index + 1;
-
- c4_RowRef row = vRunway->GetAt(index);
- r->id = (const char *) pID(row);
- r->rwy_no = (const char *) pRwy(row);
- r->lon = (double) pLon(row);
- r->lat = (double) pLat(row);
- r->heading = (double) pHdg(row);
- r->length = (double) pLen(row);
- r->width = (double) pWid(row);
- r->surface_flags = (const char *) pSurf(row);
- r->end1_flags = (const char *) pEnd1(row);
- r->end2_flags = (const char *) pEnd2(row);
-
- return true;
-}
-
-
-// Return the runway closest to a given heading
-bool FGRunways::search( const string& aptid, const int tgt_hdg,
- FGRunway* runway )
-{
- FGRunway r;
- FGRunway br;
- double found_dir = 0.0;
-
- if ( !search( aptid, &r ) ) {
- SG_LOG( SG_GENERAL, SG_ALERT,
- "Failed to find " << aptid << " in database." );
- return false;
- }
-
- double diff;
- double min_diff = 360.0;
-
- while ( r.id == aptid ) {
- // forward direction
- diff = tgt_hdg - r.heading;
- while ( diff < -180.0 ) { diff += 360.0; }
- while ( diff > 180.0 ) { diff -= 360.0; }
- diff = fabs(diff);
- // SG_LOG( SG_GENERAL, SG_INFO,
- // "Runway " << r.rwy_no << " heading = " << r.heading <<
- // " diff = " << diff );
- if ( diff < min_diff ) {
- min_diff = diff;
- //runway = &r;
- br = r;
- found_dir = 0;
- }
-
- // reverse direction
- diff = tgt_hdg - r.heading - 180.0;
- while ( diff < -180.0 ) { diff += 360.0; }
- while ( diff > 180.0 ) { diff -= 360.0; }
- diff = fabs(diff);
- // SG_LOG( SG_GENERAL, SG_INFO,
- // "Runway -" << r.rwy_no << " heading = " <<
- // r.heading + 180.0 <<
- // " diff = " << diff );
- if ( diff < min_diff ) {
- min_diff = diff;
- //runway = &r;
- br = r;
- found_dir = 180.0;
- }
- next( &r );
- }
-
- // SG_LOG( SG_GENERAL, SG_INFO, "closest runway = " << runway->rwy_no
- // << " + " << found_dir );
-
- *runway = br;
- double heading = runway->heading + found_dir;
- while ( heading >= 360.0 ) { heading -= 360.0; }
- runway->heading = heading;
- //cout << runway->heading << " " << runway->rwy_no
- // << " " << runway->id << endl;
- return true;
-}
-
-
-// Return the runway number of the runway closest to a given heading
-string FGRunways::search( const string& aptid, const int tgt_hdg ) {
- FGRunway r;
- string rn;
- double found_dir = 0.0;
-
- if ( !search( aptid, &r ) ) {
- SG_LOG( SG_GENERAL, SG_ALERT,
- "Failed to find " << aptid << " in database." );
- return "NN";
- }
-
- double diff;
- double min_diff = 360.0;
-
- while ( r.id == aptid ) {
- // forward direction
- diff = tgt_hdg - r.heading;
- while ( diff < -180.0 ) { diff += 360.0; }
- while ( diff > 180.0 ) { diff -= 360.0; }
- diff = fabs(diff);
- // SG_LOG( SG_GENERAL, SG_INFO,
- // "Runway " << r.rwy_no << " heading = " << r.heading <<
- // " diff = " << diff );
- if ( diff < min_diff ) {
- min_diff = diff;
- rn = r.rwy_no;
- found_dir = 0;
- }
-
- // reverse direction
- diff = tgt_hdg - r.heading - 180.0;
- while ( diff < -180.0 ) { diff += 360.0; }
- while ( diff > 180.0 ) { diff -= 360.0; }
- diff = fabs(diff);
- // SG_LOG( SG_GENERAL, SG_INFO,
- // "Runway -" << r.rwy_no << " heading = " <<
- // r.heading + 180.0 <<
- // " diff = " << diff );
- if ( diff < min_diff ) {
- min_diff = diff;
- rn = r.rwy_no;
- found_dir = 180.0;
- }
-
- next( &r );
- }
-
- // SG_LOG( SG_GENERAL, SG_INFO, "closest runway = " << r.rwy_no
- // << " + " << found_dir );
- // rn = r.rwy_no;
- // cout << "In search, rn = " << rn << endl;
- if ( found_dir == 180 ) {
- int irn = atoi(rn.c_str());
- irn += 18;
- if ( irn > 36 ) {
- irn -= 36;
- }
- char buf[4]; // 2 chars + string terminator + 1 for safety
- sprintf(buf, "%i", irn);
- rn = buf;
- }
-
- return rn;
-}
-
-
-// Destructor
-FGRunways::~FGRunways( void ) {
- delete storage;
-}
-
-
-// Constructor
-FGRunwaysUtil::FGRunwaysUtil() {
-}
-
-
-// load the data
-int FGRunwaysUtil::load( const string& file ) {
- FGRunway r;
- string apt_id;
-
- runways.erase( runways.begin(), runways.end() );
-
- sg_gzifstream in( file );
- if ( !in.is_open() ) {
- SG_LOG( SG_GENERAL, SG_ALERT, "Cannot open file: " << file );
- exit(-1);
- }
-
- // skip first line of file
- char tmp[2048];
- in.getline( tmp, 2048 );
-
- // read in each line of the file
-
-#ifdef __MWERKS__
-
- in >> ::skipws;
- char c = 0;
- while ( in.get(c) && c != '\0' ) {
- if ( c == 'A' ) {
- in >> apt_id;
- in >> skipeol;
- } else if ( c == 'R' ) {
- in >> r;
- r.id = apt_id;
- runways.push_back(r);
- } else {
- in >> skipeol;
- }
- in >> ::skipws;
- }
-
-#else
-
- in >> ::skipws;
- while ( ! in.eof() ) {
- char c = 0;
- in.get(c);
- if ( c == 'A' ) {
- in >> apt_id;
- in >> skipeol;
- } else if ( c == 'R' ) {
- in >> r;
- r.id = apt_id;
- // cout << apt_id << " " << r.rwy_no << endl;
- runways.push_back(r);
- } else {
- in >> skipeol;
- }
- in >> ::skipws;
- }
-
-#endif
-
- return 1;
-}
-
-
-// save the data in gdbm format
-bool FGRunwaysUtil::dump_mk4( const string& file ) {
- // open database for writing
- c4_Storage storage( file.c_str(), true );
-
- // need to do something about error handling here!
-
- // define the properties
- c4_StringProp pID ("ID");
- c4_StringProp pRwy ("Rwy");
- c4_FloatProp pLon ("Longitude");
- c4_FloatProp pLat ("Latitude");
- c4_FloatProp pHdg ("Heading");
- c4_FloatProp pLen ("Length");
- c4_FloatProp pWid ("Width");
- c4_StringProp pSurf ("SurfaceFlags");
- c4_StringProp pEnd1 ("End1Flags");
- c4_StringProp pEnd2 ("End2Flags");
-
- // Start with an empty view of the proper structure.
- c4_View vRunway =
- storage.GetAs("runway[ID:S,Rwy:S,Longitude:F,Latitude:F,Heading:F,Length:F,Width:F,SurfaceFlags:S,End1Flags:S,End2Flags:S]");
-
- c4_Row row;
-
- iterator current = runways.begin();
- const_iterator end = runways.end();
- while ( current != end ) {
- // add each runway record
- pID (row) = current->id.c_str();
- pRwy (row) = current->rwy_no.c_str();
- pLon (row) = current->lon;
- pLat (row) = current->lat;
- pHdg (row) = current->heading;
- pLen (row) = current->length;
- pWid (row) = current->width;
- pSurf (row) = current->surface_flags.c_str();
- pEnd1 (row) = current->end1_flags.c_str();
- pEnd2 (row) = current->end2_flags.c_str();
- vRunway.Add(row);
-
- ++current;
- }
-
- // commit our changes
- storage.Commit();
-
- return true;
-}
-
-
-#if 0
-// search for the specified id
-bool
-FGRunwaysUtil::search( const string& id, FGRunway* a ) const
-{
- const_iterator it = runways.find( FGRunway(id) );
- if ( it != runways.end() )
- {
- *a = *it;
- return true;
- }
- else
- {
- return false;
- }
-}
-
-
-FGRunway
-FGRunwaysUtil::search( const string& id ) const
-{
- FGRunway a;
- this->search( id, &a );
- return a;
-}
-#endif
-
-// Destructor
-FGRunwaysUtil::~FGRunwaysUtil( void ) {
-}
-
-
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