120 lines
3.3 KiB
C++
120 lines
3.3 KiB
C++
// runways.hxx -- a simple class to manage airport runway info
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//
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// Written by Curtis Olson, started August 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_RUNWAYS_HXX
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#define _FG_RUNWAYS_HXX
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#include <simgear/compiler.h>
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#include <Airports/runwaybase.hxx>
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// forward decls
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class FGAirport;
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class FGNavRecord;
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class SGPropertyNode;
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class FGRunway : public FGRunwayBase
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{
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FGAirport* _airport;
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bool _isReciprocal;
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FGRunway* _reciprocal;
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double _displ_thresh;
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double _stopway;
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FGNavRecord* _ils;
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public:
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FGRunway(FGAirport* aAirport, const std::string& rwy_no,
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const SGGeod& aGeod,
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const double heading, const double length,
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const double width,
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const double displ_thresh,
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const double stopway,
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const int surface_code,
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const bool reciprocal);
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/**
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* given a runway identifier (06, 18L, 31R) compute the identifier for the
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* reciprocal heading runway (24, 36R, 13L) string.
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*/
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static std::string reverseIdent(const std::string& aRunayIdent);
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/**
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* score this runway according to the specified weights. Used by
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* FGAirport::findBestRunwayForHeading
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*/
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double score(double aLengthWt, double aWidthWt, double aSurfaceWt) const;
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/**
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* Test if this runway is the reciprocal. This allows users who iterate
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* over runways to avoid counting runways twice, if desired.
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*/
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bool isReciprocal() const
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{ return _isReciprocal; }
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/**
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* Get the runway begining point - this is syntatic sugar, equivalent to
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* calling pointOnCenterline(0.0);
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*/
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SGGeod begin() const;
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/**
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* Get the (possibly displaced) threshold point.
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*/
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SGGeod threshold() const;
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/**
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* Get the 'far' end - this is equivalent to calling
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* pointOnCenterline(lengthFt());
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*/
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SGGeod end() const;
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double displacedThresholdM() const
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{ return _displ_thresh * SG_FEET_TO_METER; }
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double stopwayM() const
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{ return _stopway * SG_FEET_TO_METER; }
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/**
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* Airport this runway is located at
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*/
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FGAirport* airport() const
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{ return _airport; }
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// FIXME - should die once airport / runway creation is cleaned up
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void setAirport(FGAirport* aAirport)
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{ _airport = aAirport; }
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FGNavRecord* ILS() const { return _ils; }
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void setILS(FGNavRecord* nav) { _ils = nav; }
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FGRunway* reciprocalRunway() const
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{ return _reciprocal; }
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void setReciprocalRunway(FGRunway* other);
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/**
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* Helper to process property data loaded from an ICAO.threshold.xml file
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*/
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void processThreshold(SGPropertyNode* aThreshold);
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};
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#endif // _FG_RUNWAYS_HXX
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