File indexing completed on 2024-04-28 03:50:24

 // SPDX-License-Identifier: LGPL-2.1-or-later
 //
 // SPDX-FileCopyrightText: 2011 Guillaume Martres <smarter@ubuntu.com>
 //
 
 #ifndef MARBLE_SATELLITESTLEITEM_H
 #define MARBLE_SATELLITESTLEITEM_H
 
 #include "TrackerPluginItem.h"
 
 #include <sgp4unit.h>
 
 class QColor;
 class QDateTime;
 
 namespace Marble {
 
 class GeoDataCoordinates;
 class GeoDataTrack;
 class MarbleClock;
 
 /**
  * An instance SatellitesTLEItem represents an item of a two-line-elements
  * set catalog.
  */
 class SatellitesTLEItem : public TrackerPluginItem
 {
 public:
     SatellitesTLEItem( const QString &name,
                        elsetrec satrec,
                        const MarbleClock *clock );
 
     void update() override;
 
 private:
     double m_earthSemiMajorAxis; // in km
     elsetrec m_satrec;
 
     GeoDataTrack *m_track;
 
     const MarbleClock *m_clock;
 
     void setDescription();
 
     /**
      * Add a point in the GeoDataTrack geometry of the placemark with time
      * dateTime and coordinates of the satellite determined from m_satrec.
      */
     void addPointAt( const QDateTime &dateTime );
 
     /**
      * Create a GeoDataCoordinates object from the cartesian coordinates
      * @p x, @p y and @p z in km in the Earth-centered inertial frame known
      * as TEME (True equator, Mean equinox) with Greenwich Mean Sidereal Time
      * @p gmst in radians at time of observation.
      */
     GeoDataCoordinates fromTEME( double x, double y, double z, double gmst ) const;
 
     /**
      * @return The time at the satellite epoch determined from m_satrec
      */
     QDateTime timeAtEpoch() const;
 
     /**
      * @return The orbital period of the satellite in seconds
      */
     double period() const;
 
     /**
      * @return The apogee of the satellite in km
      */
     double apogee() const;
     /**
      * @return The perigee of the satellite in km
      */
     double perigee() const;
     /**
      * @return The semi-major axis in km
      */
     double semiMajorAxis() const;
 
     /**
      * @return The inclination in degrees
      */
     double inclination() const;
 
     /**
      * Returns the Greenwich Mean Sideral Time in radians, @p minutes
      * after the epoch.
      */
     double gmst( double minutes ) const;
 
     /**
      * @return The square of @p x
      */
     static double square( double x );
 };
 
 } // namespace Marble
 
 #endif // MARBLE_SATELLITESTLEITEM_H