1 | /*************************************************************************** |
2 | kssun.h - K Desktop Planetarium |
3 | ------------------- |
4 | begin : Sun Jan 29 2002 |
5 | copyright : (C) 2002 by Mark Hollomon |
6 | email : mhh@mindspring.com |
7 | ***************************************************************************/ |
8 | |
9 | /*************************************************************************** |
10 | * * |
11 | * This program is free software; you can redistribute it and/or modify * |
12 | * it under the terms of the GNU General Public License as published by * |
13 | * the Free Software Foundation; either version 2 of the License, or * |
14 | * (at your option) any later version. * |
15 | * * |
16 | ***************************************************************************/ |
17 | |
18 | #ifndef KSSUN_H_ |
19 | #define KSSUN_H_ |
20 | |
21 | #include <QString> |
22 | #include "ksplanet.h" |
23 | |
24 | /**@class KSSun |
25 | *Child class of KSPlanetBase; encapsulates information about the Sun. |
26 | *@short Provides necessary information about the Sun. |
27 | *@author Mark Hollomon |
28 | *@version 1.0 |
29 | */ |
30 | |
31 | class KSSun : public KSPlanet { |
32 | public: |
33 | /**Constructor. Defines constants needed by findPosition(). |
34 | *Sets Ecliptic coordinates appropriate for J2000. |
35 | *@param kd pointer to KStarsData object |
36 | */ |
37 | KSSun(); |
38 | |
39 | virtual KSSun* clone() const; |
40 | virtual SkyObject::UID getUID() const; |
41 | |
42 | /**Destructor (empty) |
43 | */ |
44 | virtual ~KSSun() {} |
45 | |
46 | /**Read orbital data from disk |
47 | *@note reimplemented from KSPlanet |
48 | *@note we actually read Earth's orbital data. The Sun's geocentric |
49 | *ecliptic coordinates are by definition exactly the opposite of the |
50 | *Earth's heliocentric ecliptic coordinates. |
51 | */ |
52 | virtual bool loadData(); |
53 | |
54 | |
55 | protected: |
56 | /**Determine geocentric RA, Dec coordinates for the Epoch given in the argument. |
57 | *@p Epoch current Julian Date |
58 | *@p Earth pointer to earth object |
59 | */ |
60 | virtual bool findGeocentricPosition( const KSNumbers *num, const KSPlanetBase *Earth=NULL ); |
61 | private: |
62 | virtual void findMagnitude(const KSNumbers*); |
63 | }; |
64 | long double equinox(int year, int d, int m, int angle); |
65 | |
66 | #endif |
67 | |