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/***************************************************************************
planetcatalog.h - description
-------------------
begin : Mon Feb 18 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 PLANETCATALOG_H
#define PLANETCATALOG_H
/**@class PlanetCatalog
*This class contains a TQPtrList of the eight major planets, as well as pointers
*to objects representing the Earth and Sun. Note that the Sun also exists
*in the TQPtrList, the external pointer is just for convenience.
*There are methods to search
*the collection by name, identify if a given object pointer is a planet,
*find the coordinates of a planet, and find the planet closest to a given
*SkyPoint.
*@short the collection of planet objects.
*@author Mark Hollomon
*@version 1.0
*/
#include <tqglobal.h>
#include <tqobject.h>
#include <tqptrlist.h>
class TQString;
class KStarsData;
class KSNumbers;
class KSPlanetBase;
class KSPlanet;
class KSSun;
class SkyPoint;
class SkyObject;
class ObjectNameList;
class dms;
class PlanetCatalog : public TQObject {
TQ_OBJECT
public:
/**Constructor. */
PlanetCatalog(KStarsData *dat);
/**Destructor. Delete the Earth object (all others auto-deleted by TQPtrList)*/
~PlanetCatalog();
/**Loads all planetary data from files on disk into the appropriate objects. */
bool initialize();
/**Add pointers to the planetary objects to the ObjNames list.
*@p ObjNames the list of all named objects to which we will add the planets.
*/
void addObject( ObjectNameList &ObjNames ) const;
/**Determine the coordinates for all of the planets
*@param num pointer to a ksnumbers object for the target date/time
*@param lat pointer to the geographic latitude
*@param LST pointer to the local sidereal time
*/
void findPosition( const KSNumbers *num, const dms *lat, const dms *LST );
/**@return pointer to the Sun. */
const KSSun *planetSun() const { return Sun; }
/**@return pointer to the Earth. (must not be const because we call findPosition on it in KSPlanetBase::updateCoords() )*/
KSPlanet *earth() { return Earth; }
/**Compute the present Horizontal coordinates of all planets.
*@p LST pointer to the current local sidereal time
*@p lat pointer to the current geographic latitude
*/
void EquatorialToHorizontal( dms *LST, const dms *lat );
/**@return true if the SkyObject argument is a planet.
*@p so pointer to the SkyObject to be tested
*/
bool isPlanet(SkyObject *so) const;
/**@return a pointer to the KSPlanetBase of the planet named in the argument.
*@p n the name of the planet to point to
*@note if no planet with this name is found, return the NULL pointer.
*/
KSPlanetBase *findByName( const TQString n) const;
/**@return a pointer to the planet closest to the given SkyPoint
*(within a maximum angular search radius)
*@p p the Sky point to find a planet near
*@p r the maximum angular search radius
*/
SkyObject *findClosest(const SkyPoint *p, double &r) const;
private:
TQPtrList<KSPlanetBase> planets;
KSPlanet *Earth;
KSSun *Sun;
KStarsData *kd;
};
#endif
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