145 lines
4.3 KiB
C++
145 lines
4.3 KiB
C++
// navlist.hxx -- navaids management class
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//
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// Written by Curtis Olson, started April 2000.
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//
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// Copyright (C) 2000 Curtis L. Olson - http://www.flightgear.org/~curt
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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//
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// $Id$
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#ifndef _FG_NAVLIST_HXX
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#define _FG_NAVLIST_HXX
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#include <simgear/compiler.h>
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#include <simgear/misc/sg_path.hxx>
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#include <map>
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#include <vector>
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#include STL_STRING
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#include "navrecord.hxx"
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SG_USING_STD(map);
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SG_USING_STD(vector);
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SG_USING_STD(string);
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// FGNavList ------------------------------------------------------------------
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typedef vector < FGNavRecord* > nav_list_type;
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typedef nav_list_type::iterator nav_list_iterator;
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typedef nav_list_type::const_iterator nav_list_const_iterator;
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typedef map < int, nav_list_type > nav_map_type;
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typedef nav_map_type::iterator nav_map_iterator;
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typedef nav_map_type::const_iterator nav_map_const_iterator;
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typedef map < string, nav_list_type > nav_ident_map_type;
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typedef nav_ident_map_type::iterator nav_ident_map_iterator;
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class FGNavList {
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nav_list_type carrierlist;
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nav_map_type navaids;
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nav_map_type navaids_by_tile;
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nav_ident_map_type ident_navaids;
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// Given a point and a list of stations, return the closest one to
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// the specified point.
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FGNavRecord *findNavFromList( const SGVec3d &aircraft,
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const nav_list_type &stations );
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public:
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FGNavList();
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~FGNavList();
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// initialize the nav list
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bool init();
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// add an entry
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bool add( FGNavRecord *n );
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/** Query the database for the specified station. It is assumed
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* that there will be multiple stations with matching frequencies
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* so a position must be specified. Lon and lat are in radians,
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* elev is in meters.
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*/
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FGNavRecord *findByFreq( double freq, double lon, double lat, double elev );
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// locate closest item in the DB matching the requested ident
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FGNavRecord *findByIdent( const char* ident, const double lon, const double lat );
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// Find items of requested type with closest exact or subsequent ident
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// (by ASCII code value) to that supplied.
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// Supplying true for exact forces only exact matches to be returned (similar to above function)
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// Returns an empty list if no match found - calling function should check for this!
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nav_list_type findFirstByIdent( const string& ident, fg_nav_types type, bool exact = false );
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// Given an Ident and optional freqency, return the first matching
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// station.
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FGNavRecord *findByIdentAndFreq( const char* ident,
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const double freq = 0.0 );
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// returns the closest entry to the give lon/lat/elev
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FGNavRecord *findClosest( double lon_rad, double lat_rad, double elev_m, fg_nav_types type = FG_NAV_ANY );
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// given a frequency returns the first matching entry
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FGNavRecord *findStationByFreq( double frequency );
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inline const nav_map_type& get_navaids() const { return navaids; }
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};
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// FGTACANList ----------------------------------------------------------------
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typedef vector < FGTACANRecord* > tacan_list_type;
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typedef map < int, tacan_list_type > tacan_map_type;
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typedef map < string, tacan_list_type > tacan_ident_map_type;
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class FGTACANList {
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tacan_list_type channellist;
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tacan_map_type channels;
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tacan_ident_map_type ident_channels;
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public:
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FGTACANList();
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~FGTACANList();
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// initialize the TACAN list
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bool init();
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// add an entry
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bool add( FGTACANRecord *r );
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// Given a TACAN Channel, return the appropriate frequency.
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FGTACANRecord *findByChannel( const string& channel );
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};
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#endif // _FG_NAVLIST_HXX
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