69 lines
2.7 KiB
C++
69 lines
2.7 KiB
C++
// Copyright (C) 2006 Mathias Froehlich - Mathias.Froehlich@web.de
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but 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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// Library 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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#ifndef SGGeodesy_H
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#define SGGeodesy_H
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class SGGeodesy {
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public:
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// Hard numbers from the WGS84 standard.
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static const double EQURAD;
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static const double iFLATTENING;
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static const double SQUASH;
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static const double STRETCH;
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static const double POLRAD;
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/// Takes a cartesian coordinate data and returns the geodetic
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/// coordinates.
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static void SGCartToGeod(const SGVec3<double>& cart, SGGeod& geod);
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/// Takes a geodetic coordinate data and returns the cartesian
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/// coordinates.
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static void SGGeodToCart(const SGGeod& geod, SGVec3<double>& cart);
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/// Takes a geodetic coordinate data and returns the sea level radius.
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static double SGGeodToSeaLevelRadius(const SGGeod& geod);
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/// Takes a cartesian coordinate data and returns the geocentric
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/// coordinates.
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static void SGCartToGeoc(const SGVec3<double>& cart, SGGeoc& geoc);
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/// Takes a geocentric coordinate data and returns the cartesian
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/// coordinates.
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static void SGGeocToCart(const SGGeoc& geoc, SGVec3<double>& cart);
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// Geodetic course/distance computation
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static bool direct(const SGGeod& p1, double course1,
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double distance, SGGeod& p2, double& course2);
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static bool inverse(const SGGeod& p1, const SGGeod& p2, double& course1,
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double& course2, double& distance);
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static double courseDeg(const SGGeod& from, const SGGeod& to);
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static double distanceM(const SGGeod& from, const SGGeod& to);
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static double distanceNm(const SGGeod& from, const SGGeod& to);
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// Geocentric course/distance computation
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static void advanceRadM(const SGGeoc& geoc, double course, double distance,
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SGGeoc& result);
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static double courseRad(const SGGeoc& from, const SGGeoc& to);
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static double distanceRad(const SGGeoc& from, const SGGeoc& to);
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static double distanceM(const SGGeoc& from, const SGGeoc& to);
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};
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#endif
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