Horizon.h

//-*-C++-*-
/***************************************************************************
 *
 *   Copyright (C) 2008 by Willem van Straten
 *   Licensed under the Academic Free License version 2.1
 *
 ***************************************************************************/
 
// psrchive/Util/genutil/Horizon.h
 
#ifndef __Horizon_H
#define __Horizon_H
 
#include "Directional.h"


class Horizon : public Directional
{  
public:

  Horizon (double az=0, double el=0);
  
  double get_azimuth () const;

  double get_elevation () const;

  double get_zenith () const;

  std::string get_name () const;

  std::vector< std::pair<double,Mount*> >
  slew_times (const sky_coord& coords);
 
  std::vector< std::pair<double,Mount*> >
  slew_times (double az, double el);
 
  void set_minimum_azimuth (double a) { minimum_azimuth = a; }
  double get_minimum_azimuth () const { return minimum_azimuth; }
 
  void set_maximum_azimuth (double a) { maximum_azimuth = a; }
  double get_maximum_azimuth () const { return maximum_azimuth; }
  
  void set_minimum_elevation (double a) { minimum_elevation = a; }
  double get_minimum_elevation () const { return minimum_elevation; }
 
  void set_maximum_elevation (double a) { maximum_elevation = a; }
  double get_maximum_elevation () const { return maximum_elevation; }
  
  void set_azimuth_velocity (double a) { azimuth_velocity = a; }
  double get_azimuth_velocity () const { return azimuth_velocity; }
 
  void set_elevation_velocity (double a) { elevation_velocity = a; }
  double get_elevation_velocity () const { return elevation_velocity; }
 
protected:

  Matrix<3,3,double> get_basis (const Vector<3,double>& from_source) const;

  mutable double azimuth;

  mutable double elevation;
 
  double minimum_azimuth;
  double maximum_azimuth;
  
  double minimum_elevation;
  double maximum_elevation;
  
  double azimuth_velocity;
  double elevation_velocity;
};
 
#endif