git-svn-id: svn://db.shs.com.ru/pip@400 12ceb7fc-bf1f-11e4-8940-5bc7170c53b5

src_main/geo/piellipsoidmodel.h

@@ -0,0 +1,47 @@
+/*! \file piellipsoidmodel.h
+ * \brief Contains geo ellipsoid models
+*/
+/*
+    PIP - Platform Independent Primitives
+    Contains geo ellipsoid models
+	Copyright (C) 2016 Andrey Bychkov work.a.b@yandex.ru
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef PIELLIPSOIDMODEL_H
+#define PIELLIPSOIDMODEL_H
+
+
+#include "pimathbase.h"
+
+class PIEllipsoidModel {
+public:
+	PIEllipsoidModel();
+	double eccSquared() const {return eccentricity * eccentricity;} // eccentricity squared
+	double b() const {return a * sqrt(1 - eccSquared());}
+
+	static PIEllipsoidModel WGS84Ellipsoid();
+	static PIEllipsoidModel PZ90Ellipsoid();
+	static PIEllipsoidModel GPSEllipsoid();
+
+	double a; /// Major axis of Earth in meters
+	double flattening; /// Flattening (ellipsoid parameter)
+	double eccentricity; /// Eccentricity (ellipsoid parameter)
+	double angVelocity; /// Angular velocity of Earth in radians/sec
+};
+
+
+
+#endif // PIELLIPSOIDMODEL_H