flightgear/src/Navaids/navlist.hxx
2022-10-20 20:29:11 +08:00

157 lines
4.5 KiB
C++

// navlist.hxx -- navaids management class
//
// Written by Curtis Olson, started April 2000.
//
// Copyright (C) 2000 Curtis L. Olson - http://www.flightgear.org/~curt
//
// 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
// $Id$
#ifndef _FG_NAVLIST_HXX
#define _FG_NAVLIST_HXX
#include <simgear/compiler.h>
#include <simgear/structure/SGSharedPtr.hxx>
#include <map>
#include <vector>
#include <string>
#include "navrecord.hxx"
// forward decls
class SGGeod;
// FGNavList ------------------------------------------------------------------
typedef SGSharedPtr<FGNavRecord> nav_rec_ptr;
typedef std::vector < nav_rec_ptr > nav_list_type;
class FGNavList
{
public:
class TypeFilter : public FGPositioned::Filter
{
public:
TypeFilter( const FGPositioned::Type type = FGPositioned::INVALID );
TypeFilter( const FGPositioned::Type minType,
const FGPositioned::Type maxType );
/**
* Construct from string containing type
*
* @param type One of "fix"|"vor"|"ndb"|"ils"|"dme"|"tacan"|"any"
*/
bool fromTypeString(const std::string& type);
virtual FGPositioned::Type minType() const { return _mintype; }
virtual FGPositioned::Type maxType() const { return _maxtype; }
protected:
FGPositioned::Type _mintype;
FGPositioned::Type _maxtype;
};
/**
filter matching VOR & ILS/LOC transmitters
*/
static TypeFilter* navFilter();
/**
* filter matching ILS/LOC transmitter
*/
static TypeFilter* locFilter();
static TypeFilter* ndbFilter();
/**
* Filter returning TACANs and VORTACs
*/
static TypeFilter* tacanFilter();
static TypeFilter* mobileTacanFilter();
/** Query the database for the specified station. It is assumed
* that there will be multiple stations with matching frequencies
* so a position must be specified.
*/
static FGNavRecordRef findByFreq( double freq, const SGGeod& position,
TypeFilter* filter = nullptr);
/**
* Overloaded version above - no positioned supplied so can be used with
* mobile TACANs which have no valid position. The first match is
* returned only.
*/
static FGNavRecordRef findByFreq( double freq, TypeFilter* filter = NULL);
static nav_list_type findAllByFreq( double freq, const SGGeod& position,
TypeFilter* filter = NULL);
// Given an Ident and optional frequency and type ,
// return a list of matching stations.
static nav_list_type findByIdentAndFreq( const std::string& ident,
const double freq,
TypeFilter* filter = NULL);
// Given an Ident and optional frequency and type ,
// return a list of matching stations sorted by distance to the given position
static nav_list_type findByIdentAndFreq( const SGGeod & position,
const std::string& ident, const double freq = 0.0,
TypeFilter* filter = NULL);
};
// FGTACANList ----------------------------------------------------------------
typedef SGSharedPtr<FGTACANRecord> tacan_rec_ptr;
typedef std::vector < tacan_rec_ptr > tacan_list_type;
typedef std::map < int, tacan_list_type > tacan_map_type;
typedef std::map < std::string, tacan_list_type > tacan_ident_map_type;
class FGTACANList {
tacan_list_type channellist;
tacan_map_type channels;
tacan_ident_map_type ident_channels;
public:
FGTACANList();
~FGTACANList();
// initialize the TACAN list
bool init();
// add an entry
bool add( FGTACANRecord *r );
// Given a TACAN Channel, return the appropriate frequency.
FGTACANRecord *findByChannel(const std::string& channel);
// Given a TACAN Channel, return the appropriate frequency.
FGTACANRecord *findByFrequency(int frequency_kHz);
};
#endif // _FG_NAVLIST_HXX