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.
102 lines
3.6 KiB
102 lines
3.6 KiB
/***************************************************************************
|
|
ksasteroid.h - Trinity Desktop Planetarium
|
|
-------------------
|
|
begin : Wed 19 Feb 2003
|
|
copyright : (C) 2001 by Jason Harris
|
|
email : jharris@30doradus.org
|
|
***************************************************************************/
|
|
|
|
/***************************************************************************
|
|
* *
|
|
* 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 KSASTEROID_H
|
|
#define KSASTEROID_H
|
|
|
|
#include "ksplanetbase.h"
|
|
|
|
/**@class KSAsteroid
|
|
*@short A subclass of KSPlanetBase that implements asteroids.
|
|
*
|
|
*The orbital elements are stored as private member variables, and it
|
|
*provides methods to compute the ecliptic coordinates for any time
|
|
*from the orbital elements.
|
|
*
|
|
*The orbital elements are:
|
|
*@li JD Epoch of element values
|
|
*@li a semi-major axis length (AU)
|
|
*@li e eccentricity of orbit
|
|
*@li i inclination angle (with respect to J2000.0 ecliptic plane)
|
|
*@li w argument of perihelion (w.r.t. J2000.0 ecliptic plane)
|
|
*@li N longitude of ascending node (J2000.0 ecliptic)
|
|
*@li M mean anomaly at epoch JD
|
|
*@li H absolute magnitude
|
|
*
|
|
*@author Jason Harris
|
|
*@version 1.0
|
|
*/
|
|
|
|
class KStarsData;
|
|
class KSNumbers;
|
|
class dms;
|
|
|
|
class KSAsteroid : public KSPlanetBase
|
|
{
|
|
public:
|
|
/**Constructor.
|
|
*@p kd pointer to the KStarsData object
|
|
*@p s the name of the asteroid
|
|
*@p image_file the filename for an image of the asteroid
|
|
*@p JD the Julian Day for the orbital elements
|
|
*@p a the semi-major axis of the asteroid's orbit (AU)
|
|
*@p e the eccentricity of the asteroid's orbit
|
|
*@p i the inclination angle of the asteroid's orbit
|
|
*@p w the argument of the orbit's perihelion
|
|
*@p N the longitude of the orbit's ascending node
|
|
*@p M the mean anomaly for the Julian Day
|
|
*@p H absolute magnitude
|
|
*/
|
|
KSAsteroid( KStarsData *kd, TQString s, TQString image_file,
|
|
long double JD, double a, double e, dms i, dms w, dms N, dms M, double H );
|
|
|
|
/**Destructor (empty)*/
|
|
virtual ~KSAsteroid() {}
|
|
|
|
/**This is inherited from KSPlanetBase. We don't use it in this class,
|
|
*so it is empty.
|
|
*/
|
|
virtual bool loadData();
|
|
|
|
protected:
|
|
/**Calculate the geocentric RA, Dec coordinates of the Asteroid.
|
|
*@note reimplemented from KSPlanetBase
|
|
*@param num time-dependent values for the desired date
|
|
*@param Earth planet Earth (needed to calculate geocentric coords)
|
|
*@return true if position was successfully calculated.
|
|
*/
|
|
virtual bool findGeocentricPosition( const KSNumbers *num, const KSPlanetBase *Earth=NULL );
|
|
|
|
//these set functions are needed for the new KSPluto subclass
|
|
void set_a( double newa ) { a = newa; }
|
|
void set_e( double newe ) { e = newe; }
|
|
void set_P( double newP ) { P = newP; }
|
|
void set_i( double newi ) { i.setD( newi ); }
|
|
void set_w( double neww ) { w.setD( neww ); }
|
|
void set_M( double newM ) { M.setD( newM ); }
|
|
void set_N( double newN ) { N.setD( newN ); }
|
|
void setJD( long double jd ) { JD = jd; }
|
|
|
|
private:
|
|
KStarsData *kd;
|
|
long double JD;
|
|
double a, e, H, P;
|
|
dms i, w, M, N;
|
|
};
|
|
|
|
#endif
|