ConversionUtil.h

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#ifndef _RecDataWriterNG_ConversionUtil_h_
#define _RecDataWriterNG_ConversionUtil_h_

#include <vector>
#include <TVector3.h>
#include <utl/CoordinateSystemPtr.h>


class RecEvent;
class RecShower;

namespace utl {
  class TimeStamp;
}

namespace otoa {

  // Time related...
  unsigned int TimeStamp2YYMMDD(const utl::TimeStamp& timest);

  unsigned int TimeStamp2HHMMSS(const utl::TimeStamp& timest);

  double TimeStamp2MoonCycle(const utl::TimeStamp& timest);

  double TimeStamp2GMST(const utl::TimeStamp& timest);

  double CalculateNutationCorrection(const double julianDay);

  void LinearFit(const std::vector<double>& x,
                 const std::vector<double>& y,
                 const std::vector<double>& ey,
                 double& a0,
                 double& a1,
                 double& chi2);

  void FillCelestialCoordinates(RecShower& recShower);

  template<class T>
  inline
  TVector3
  ToTVector3(const T& v, const utl::CoordinateSystemPtr& cs, const double unit = 1)
  {
    return TVector3(v.GetX(cs)/unit, v.GetY(cs)/unit, v.GetZ(cs)/unit);
  }

}


#endif