Center.h

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#ifndef SZA_UTIL_CENTER_H
#define SZA_UTIL_CENTER_H

#include "carma/szautil/AntNum.h"
#include "carma/szautil/Source.h"

#include "carma/szaarrayutils/source.h"

namespace sza {
  namespace util {
    
    class Center {
    public:
      
      Center(sza::array::SourceId srcId,
             AntNum::Id antennas=AntNum::ANTNONE);
      
      virtual ~Center();
      
      void addAntennas(AntNum::Id);

      void removeAntennas(AntNum::Id);

      AntNum::Id getAntennas();

      bool isEmpty();

      bool isSet(AntNum::Id antennas);

      std::string getName();

      unsigned getCatalogNumber();

      /*
       * Return the type of this pointing center
       */
      sza::array::SourceType getType();

      double* getEphemerisCache();

      sza::array::SourceId* getSourceId();

      sza::array::CacheWindow* getWindow();

      sza::util::Source* getSource();

    private:

      sza::array::SourceId srcId_;
      AntNum::Id antennas_;

      // Quadratic interpolation cache for ephemeris sources

      double ephem_[3];

      // A struct for specifying the time window over which the last
      // cached ephemeris values are valid.

      sza::array::CacheWindow window_;

      // An object for managing source ephemerides.
      
      sza::util::Source source_;

    }; // End class Center
    
  } // End namespace util
} // End namespace sza



#endif // End #ifndef SZA_UTIL_CENTER_H