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"
34 class FGRunway : public FGRunwayBase
42 FGRunway(FGAirport* aAirport, const std::string& rwy_no,
44 const double heading, const double length,
46 const double displ_thresh,
48 const int surface_code,
49 const bool reciprocal);
52 * given a runway identifier (06, 18L, 31R) compute the identifier for the
53 * reciprocal heading runway (24, 36R, 13L) string.
55 static std::string reverseIdent(const std::string& aRunayIdent);
58 * score this runway according to the specified weights. Used by
59 * FGAirport::findBestRunwayForHeading
61 double score(double aLengthWt, double aWidthWt, double aSurfaceWt) const;
64 * Test if this runway is the reciprocal. This allows users who iterate
65 * over runways to avoid counting runways twice, if desired.
67 bool isReciprocal() const
68 { return _reciprocal; }
71 * Get the runway begining point - this is syntatic sugar, equivalent to
72 * calling pointOnCenterline(0.0);
77 * Get the (possibly displaced) threshold point.
79 SGGeod threshold() const;
82 * Get the 'far' end - this is equivalent to calling
83 * pointOnCenterline(lengthFt());
87 double displacedThresholdM() const
88 { return _displ_thresh * SG_FEET_TO_METER; }
90 double stopwayM() const
91 { return _stopway * SG_FEET_TO_METER; }
94 * Airport this runway is located at
96 FGAirport* airport() const
99 // FIXME - should die once airport / runway creation is cleaned up
100 void setAirport(FGAirport* aAirport)
101 { _airport = aAirport; }
104 #endif // _FG_RUNWAYS_HXX