File indexing completed on 2024-04-14 03:43:09

 /*
     SPDX-FileCopyrightText: 2002 Jason Harris <kstars@30doradus.org>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #pragma once
 
 #include <QString>
 #include <QVector>
 #include "planetmoons.h"
 
 class KSNumbers;
 class KSPlanet;
 class KSSun;
 
 /**
   *@class JupiterMoons
   *Implements the four largest moons of Jupiter.
   *See Chapter 43 of "Astronomical Algorithms"by Jean Meeus for details
   *
   *TODO: make the moons SkyObjects, rather than just points.
   *
   *@author Jason Harris
   *@version 1.0
   */
 class JupiterMoons : public PlanetMoons
 {
     public:
         /**
               *Constructor.  Assign the name of each moon,
               *and initialize their XYZ positions to zero.
               */
         JupiterMoons();
 
         /**
               *Destructor.  Delete moon objects.
               */
         ~JupiterMoons() override;
 
         /**
               *@short Find the positions of each Moon, relative to Jupiter.
               *We use an XYZ coordinate system, centered on Jupiter,
               *where the X-axis corresponds to Jupiter's Equator,
               *the Y-Axis is parallel to Jupiter's Poles, and the
               *Z-axis points along the line joining the Earth and
               *Jupiter.  Once the XYZ positions are known, this
               *function also computes the RA,Dec positions of each
               *Moon, and sets the inFront bool variable to indicate
               *whether the Moon is nearer to us than Jupiter or not
               *(this information is used to determine whether the
               *Moon should be drawn on top of Jupiter, or vice versa).
               *
               *See "Astronomical Algorithms" bu Jean Meeus, Chapter 43.
               *
               *@param num pointer to the KSNumbers object describing
               *the date/time at which to find the positions.
               *@param jup pointer to the jupiter object
               *@param sunptr pointer to the Sun object
               */
         void findPosition(const KSNumbers *num, const KSPlanetBase *jup, const KSSun *sunptr) override;
 };