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Start of code to load, manage, and query the navaid database.

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curt 2000-04-21 04:19:22 +00:00
parent 460ef49a4c
commit 7a16ec4fb4
6 changed files with 302 additions and 0 deletions
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10
src/Navaids/Makefile.am Normal file
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noinst_LIBRARIES = libNavAids.a
noinst_PROGRAMS = testnavs
libNavAids_a_SOURCES = navaid.hxx navaids.hxx navaids.cxx
testnavs_SOURCES = testnavs.cxx
testnavs_LDADD = libNavAids.a -lsgdebug -lsgmisc -lz
INCLUDES += -I$(top_builddir) -I$(top_builddir)/src

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src/Navaids/navaid.cxx Normal file
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// navaid.cxx -- navaid class
//
// Written by Curtis Olson, started April 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.
//
// $Id$
#include "navaid.hxx"

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src/Navaids/navaid.hxx Normal file
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// navaid.hxx -- navaid class
//
// Written by Curtis Olson, started April 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.
//
// $Id$
#ifndef _FG_NAVAID_HXX
#define _FG_NAVAID_HXX
#include <simgear/compiler.h>
#include <simgear/misc/fgstream.hxx>
#ifdef FG_HAVE_STD_INCLUDES
# include <istream>
#elif defined( FG_HAVE_NATIVE_SGI_COMPILERS )
# include <iostream.h>
#elif defined( __BORLANDC__ )
# include <iostream>
#else
# include <istream.h>
#endif
#if ! defined( FG_HAVE_NATIVE_SGI_COMPILERS )
FG_USING_STD(istream);
#endif
class FGNavAid {
char type;
double lon, lat;
double elev;
int freq;
int range;
bool dme;
char ident[5];
public:
inline FGNavAid(void) {}
inline ~FGNavAid(void) {}
inline char get_type() const { return type; }
inline double get_lon() const { return lon; }
inline double get_lat() const { return lat; }
inline double get_elev() const { return elev; }
inline int get_freq() const { return freq; }
inline int get_range() const { return range; }
inline bool get_dme() const { return dme; }
inline char *get_ident() { return ident; }
inline void set_type( char t ) { type = t; }
inline void set_lon( double l ) { lon = l; }
inline void set_lat( double l ) { lat = l; }
inline void set_elev( double e ) { elev = e; }
inline void set_freq( int f ) { freq = f; }
inline void set_range( int r ) { range = r; }
inline void set_dme( bool b ) { dme = b; }
inline void set_ident( char *i ) { strncpy( ident, i, 5 ); }
friend istream& operator>> ( istream&, FGNavAid& );
};
inline istream&
operator >> ( istream& in, FGNavAid& n )
{
double f;
char c;
in >> n.type >> n.lon >> n.lat >> n.elev >> f >> n.range
>> c >> n.ident;
n.freq = (int)(f * 100.0);
if ( c == 'Y' ) {
n.dme = true;
} else {
n.dme = false;
}
return in >> skipeol;
}
#endif // _FG_NAVAID_HXX

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src/Navaids/navaids.cxx Normal file
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// navaids.cxx -- navaids management class
//
// Written by Curtis Olson, started April 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.
//
// $Id$
#include <simgear/misc/fgstream.hxx>
#include <simgear/debug/logstream.hxx>
#include "navaids.hxx"
// Constructor
FGNavAids::FGNavAids( void ) {
}
// Destructor
FGNavAids::~FGNavAids( void ) {
}
// load the navaids and build the map
bool FGNavAids::init( FGPath path ) {
FGNavAid n;
navaids.erase( navaids.begin(), navaids.end() );
fg_gzifstream in( path.str() );
if ( !in.is_open() ) {
FG_LOG( FG_GENERAL, FG_ALERT, "Cannot open file: " << path.str() );
exit(-1);
}
// read in each line of the file
in >> skipeol;
in >> skipcomment;
#ifdef __MWERKS__
char c = 0;
while ( in.get(c) && c != '\0' && n.get_type() != '[' ) {
in.putback(c);
in >> n;
if ( n.get_type() != '[' ) {
navaids[n.get_freq()].push_back(n);
}
in >> skipcomment;
}
#else
while ( ! in.eof() && n.get_type() != '[' ) {
in >> n;
/* cout << "id = " << n.get_ident() << endl;
cout << " type = " << n.get_type() << endl;
cout << " lon = " << n.get_lon() << endl;
cout << " lat = " << n.get_lat() << endl;
cout << " elev = " << n.get_elev() << endl;
cout << " freq = " << n.get_freq() << endl;
cout << " range = " << n.get_range() << endl; */
if ( n.get_type() != '[' ) {
navaids[n.get_freq()].push_back(n);
}
in >> skipcomment;
}
#endif
return true;
}

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src/Navaids/navaids.hxx Normal file
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// navaids.hxx -- navaids management class
//
// Written by Curtis Olson, started April 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.
//
// $Id$
#ifndef _FG_NAVAIDS_HXX
#define _FG_NAVAIDS_HXX
#include <simgear/compiler.h>
#include <simgear/misc/fgpath.hxx>
#include <map>
#include <vector>
#include "navaid.hxx"
FG_USING_STD(map);
FG_USING_STD(vector);
// convenience types
typedef vector < FGNavAid > nav_list_type;
typedef nav_list_type::iterator nav_list_iterator;
typedef nav_list_type::const_iterator nav_list_const_iterator;
typedef map < int, nav_list_type, less<int> > nav_map_type;
typedef nav_map_type::iterator nav_map_iterator;
typedef nav_map_type::const_iterator nav_map_const_iterator;
class FGNavAids {
nav_map_type navaids;
public:
FGNavAids();
~FGNavAids();
// load the navaids and build the map
bool init( FGPath path );
// query the database for the specified frequency
FGNavAid query( double lon, double lat, int freq );
};
#endif // _FG_NAVAIDS_HXX

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src/Navaids/testnavs.cxx Normal file
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#include <simgear/misc/fgpath.hxx>
#include "navaids.hxx"
int main() {
FGNavAids navs;
FGPath p( "/home/curt/FlightGear/Navaids/default.nav.gz" );
navs.init( p );
}