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flightgear/src/Airports/runways.hxx

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// runways.hxx -- a simple class to manage airport runway info
//
// Written by Curtis Olson, started August 2000.
//
// Copyright (C) 2000 Curtis L. Olson - http://www.flightgear.org/~curt
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//
// 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
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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//
// $Id$
#ifndef _FG_RUNWAYS_HXX
#define _FG_RUNWAYS_HXX
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#include <simgear/compiler.h>
#include <Airports/runwaybase.hxx>
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// forward decls
class FGAirport;
class FGNavRecord;
class SGPropertyNode;
namespace flightgear {
class SID;
class STAR;
class Approach;
}
class FGRunway : public FGRunwayBase
{
PositionedID _airport;
bool _isReciprocal;
PositionedID _reciprocal;
double _displ_thresh;
double _stopway;
PositionedID _ils;
public:
FGRunway(PositionedID aGuid,
PositionedID aAirport, const std::string& rwy_no,
const SGGeod& aGeod,
const double heading, const double length,
const double width,
const double displ_thresh,
const double stopway,
const int surface_code,
const bool reciprocal);
/**
* given a runway identifier (06, 18L, 31R) compute the identifier for the
* reciprocal heading runway (24, 36R, 13L) string.
*/
static std::string reverseIdent(const std::string& aRunayIdent);
/**
* score this runway according to the specified weights. Used by
* FGAirport::findBestRunwayForHeading
*/
double score(double aLengthWt, double aWidthWt, double aSurfaceWt) const;
/**
* Test if this runway is the reciprocal. This allows users who iterate
* over runways to avoid counting runways twice, if desired.
*/
bool isReciprocal() const
{ return _isReciprocal; }
/**
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* Get the runway beginning point - this is syntatic sugar, equivalent to
* calling pointOnCenterline(0.0);
*/
SGGeod begin() const;
/**
* Get the (possibly displaced) threshold point.
*/
SGGeod threshold() const;
/**
* Get the 'far' end - this is equivalent to calling
* pointOnCenterline(lengthFt());
*/
SGGeod end() const;
double displacedThresholdM() const
{ return _displ_thresh * SG_FEET_TO_METER; }
double stopwayM() const
{ return _stopway * SG_FEET_TO_METER; }
/**
* Airport this runway is located at
*/
FGAirport* airport() const;
FGNavRecord* ILS() const;
/**
* retrieve the associated glideslope transmitter, if one is defined.
*/
FGNavRecord* glideslope() const;
void setILS(PositionedID nav) { _ils = nav; }
FGRunway* reciprocalRunway() const;
void setReciprocalRunway(PositionedID other);
/**
* Get SIDs (DPs) associated with this runway
*/
std::vector<flightgear::SID*> getSIDs() const;
/**
* Get STARs associared with this runway
*/
std::vector<flightgear::STAR*> getSTARs() const;
std::vector<flightgear::Approach*> getApproaches() const;
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};
#endif // _FG_RUNWAYS_HXX