You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
76 lines
2.5 KiB
76 lines
2.5 KiB
/***************************************************************************
|
|
kssun.h - Trinity Desktop Planetarium
|
|
-------------------
|
|
begin : Sun Jan 29 2002
|
|
copyright : (C) 2002 by Mark Hollomon
|
|
email : mhh@mindspring.com
|
|
***************************************************************************/
|
|
|
|
/***************************************************************************
|
|
* *
|
|
* 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 2 of the License, or *
|
|
* (at your option) any later version. *
|
|
* *
|
|
***************************************************************************/
|
|
|
|
#ifndef KSSUN_H
|
|
#define KSSUN_H
|
|
|
|
#include <tqstring.h>
|
|
#include "ksplanet.h"
|
|
|
|
/**@class KSSun
|
|
*Child class of KSPlanetBase; encapsulates information about the Sun.
|
|
*@short Provides necessary information about the Sun.
|
|
*@author Mark Hollomon
|
|
*@version 1.0
|
|
*/
|
|
|
|
class KStarsData;
|
|
|
|
class KSSun : public KSPlanet {
|
|
public:
|
|
/**Constructor. Defines constants needed by findPosition().
|
|
*Sets Ecliptic coordinates appropriate for J2000.
|
|
*@param kd pointer to KStarsData object
|
|
*@param fn filename of Sun image
|
|
*@param pSize physical diameter of the Sun, in km
|
|
*/
|
|
KSSun(KStarsData *kd, TQString fn = "", double pSize=0 );
|
|
|
|
/**Destructor (empty)
|
|
*/
|
|
virtual ~KSSun() {}
|
|
|
|
/**Read orbital data from disk
|
|
*@note reimplemented from KSPlanet
|
|
*@note we actually read Earth's orbital data. The Sun's geocentric
|
|
*ecliptic coordinates are by definition exactly the opposite of the
|
|
*Earth's heliocentric ecliptic coordinates.
|
|
*/
|
|
virtual bool loadData();
|
|
|
|
long double springEquinox(int year);
|
|
|
|
long double summerSolstice(int year);
|
|
|
|
long double autumnEquinox(int year);
|
|
|
|
long double winterSolstice(int year);
|
|
|
|
long double equinox(int year, int d, int m, double angle);
|
|
|
|
|
|
protected:
|
|
/**Determine geocentric RA, Dec coordinates for the Epoch given in the argument.
|
|
*@p Epoch current Julian Date
|
|
*@p Earth pointer to earth object
|
|
*/
|
|
virtual bool findGeocentricPosition( const KSNumbers *num, const KSPlanetBase *Earth=NULL );
|
|
};
|
|
long double equinox(int year, int d, int m, int angle);
|
|
|
|
#endif
|