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128 lines
4 KiB
C++
128 lines
4 KiB
C++
/*
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* Copyright (C) 2009 Petri Damsten <damu@iki.fi>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program 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
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* GNU 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, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef SOLARSYSTEM_H
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#define SOLARSYSTEM_H
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#include <QDateTime>
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#include <QPair>
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#include <QtCore/qpoint.h>
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/*
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* Mathematics, ideas, public domain code used for these classes from:
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* http://www.stjarnhimlen.se/comp/tutorial.html
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* http://www.stjarnhimlen.se/comp/riset.html
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* http://www.srrb.noaa.gov/highlights/solarrise/azel.html
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* http://www.srrb.noaa.gov/highlights/sunrise/sunrise.html
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* http://bodmas.org/astronomy/riset.html
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* moontool.c by John Walker
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* Wikipedia
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*/
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class SolarSystemObject
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{
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public:
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SolarSystemObject();
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virtual ~SolarSystemObject();
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double meanLongitude() const { return L; };
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double meanAnomaly() const { return M; };
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double siderealTime();
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double altitude() const { return m_altitude; };
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double azimuth() const { return m_azimuth; };
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double calcElevation();
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QDateTime dateTime() const { return m_local; };
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double lambda() const { return m_lambda; };
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double eclipticLongitude() const { return m_eclipticLongitude; };
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void setPosition(double latitude, double longitude);
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virtual void calcForDateTime(const QDateTime& local, int offset);
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QList< QPair<QDateTime, QDateTime> > timesForAngles(const QList<double>& angles,
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const QDateTime& dt,
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int offset);
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protected:
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void calc();
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virtual bool calcPerturbations(double*, double*, double*) { return false; };
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virtual void rotate(double*, double*) { };
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virtual void topocentricCorrection(double*, double*) { };
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inline double rev(double x);
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inline double asind(double x);
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inline double sind(double x);
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inline double cosd(double x);
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inline double atand(double x);
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inline double tand(double x);
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inline double atan2d(double y, double x);
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void toRectangular(double lo, double la, double r, double *x, double *y, double *z);
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void toSpherical(double x, double y, double z, double *lo, double *la, double *r);
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QPair<double, double> zeroPoints(QPointF p1, QPointF p2, QPointF p3);
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double N;
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double i;
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double w;
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double a;
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double e;
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double M;
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double m_obliquity;
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QDateTime m_utc;
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QDateTime m_local;
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double m_day;
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double m_latitude;
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double m_longitude;
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double L;
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double rad;
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double RA;
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double dec;
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double HA;
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double m_altitude;
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double m_azimuth;
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double m_eclipticLongitude;
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double m_lambda;
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};
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class Sun : public SolarSystemObject
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{
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public:
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Sun();
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virtual void calcForDateTime(const QDateTime& local, int offset);
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protected:
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virtual void rotate(double*, double*);
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};
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class Moon : public SolarSystemObject
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{
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public:
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Moon(Sun *sun);
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virtual ~Moon() {}; // to not delete the Sun
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virtual void calcForDateTime(const QDateTime& local, int offset);
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double phase();
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protected:
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virtual bool calcPerturbations(double *RA, double *dec, double *r);
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virtual void rotate(double*, double*);
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virtual void topocentricCorrection(double*, double*);
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private:
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Sun *m_sun;
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};
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#endif
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