1 // runways.hxx -- a simple class to manage airport runway info
3 // Written by Curtis Olson, started August 2000.
5 // Copyright (C) 2000 Curtis L. Olson - http://www.flightgear.org/~curt
7 // This program is free software; you can redistribute it and/or
8 // modify it under the terms of the GNU General Public License as
9 // published by the Free Software Foundation; either version 2 of the
10 // License, or (at your option) any later version.
12 // This program is distributed in the hope that it will be useful, but
13 // WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 // General Public License for more details.
17 // You should have received a copy of the GNU General Public License
18 // along with this program; if not, write to the Free Software
19 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
24 #ifndef _FG_RUNWAYS_HXX
25 #define _FG_RUNWAYS_HXX
27 #include <simgear/compiler.h>
29 #include <Airports/runwaybase.hxx>
36 class FGRunway : public FGRunwayBase
40 FGRunway* _reciprocal;
46 FGRunway(FGAirport* aAirport, const std::string& rwy_no,
48 const double heading, const double length,
50 const double displ_thresh,
52 const int surface_code,
53 const bool reciprocal);
56 * given a runway identifier (06, 18L, 31R) compute the identifier for the
57 * reciprocal heading runway (24, 36R, 13L) string.
59 static std::string reverseIdent(const std::string& aRunayIdent);
62 * score this runway according to the specified weights. Used by
63 * FGAirport::findBestRunwayForHeading
65 double score(double aLengthWt, double aWidthWt, double aSurfaceWt) const;
68 * Test if this runway is the reciprocal. This allows users who iterate
69 * over runways to avoid counting runways twice, if desired.
71 bool isReciprocal() const
72 { return _isReciprocal; }
75 * Get the runway begining point - this is syntatic sugar, equivalent to
76 * calling pointOnCenterline(0.0);
81 * Get the (possibly displaced) threshold point.
83 SGGeod threshold() const;
86 * Get the 'far' end - this is equivalent to calling
87 * pointOnCenterline(lengthFt());
91 double displacedThresholdM() const
92 { return _displ_thresh * SG_FEET_TO_METER; }
94 double stopwayM() const
95 { return _stopway * SG_FEET_TO_METER; }
98 * Airport this runway is located at
100 FGAirport* airport() const
103 // FIXME - should die once airport / runway creation is cleaned up
104 void setAirport(FGAirport* aAirport)
105 { _airport = aAirport; }
107 FGNavRecord* ILS() const { return _ils; }
108 void setILS(FGNavRecord* nav) { _ils = nav; }
110 FGRunway* reciprocalRunway() const
111 { return _reciprocal; }
112 void setReciprocalRunway(FGRunway* other);
115 * Helper to process property data loaded from an ICAO.threshold.xml file
117 void processThreshold(SGPropertyNode* aThreshold);
120 #endif // _FG_RUNWAYS_HXX