1 // runwaybase.cxx -- a base class for runways and taxiways
3 // Written by James Turber, started December 2008.
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.
28 #include <simgear/compiler.h>
29 #include <simgear/props/props.hxx>
31 #include "runwaybase.hxx"
43 * 7 - concrete helipad
49 FGRunwayBase::FGRunwayBase(Type aTy, const string& aIdent,
51 const double heading, const double length,
53 const int surface_code,
55 FGPositioned(aTy, aIdent, aGeod)
60 _surface_code = surface_code;
65 SGGeod FGRunwayBase::pointOnCenterline(double aOffset) const
69 double halfLengthMetres = lengthM() * 0.5;
71 SGGeodesy::direct(mPosition, _heading,
72 aOffset - halfLengthMetres,
79 SGGeod FGRunwayBase::pointOffCenterline(double aOffset, double lateralOffset) const
84 double halfLengthMetres = lengthM() * 0.5;
86 SGGeodesy::direct(mPosition, _heading,
87 aOffset - halfLengthMetres,
90 SGGeodesy::direct(temp, (_heading+90.0),
98 bool FGRunwayBase::isHardSurface() const
100 return ((_surface_code == 1) || (_surface_code == 2));
103 FGTaxiway::FGTaxiway(const string& aIdent,
105 const double heading, const double length,
107 const int surface_code) :
108 FGRunwayBase(TAXIWAY, aIdent, aGeod, heading, length, width, surface_code, false)