PiercePoint.h

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// Copyright (C) 2020 ASTRON (Netherlands Institute for Radio Astronomy)
// SPDX-License-Identifier: GPL-3.0-or-later
 
#ifndef DP3_DDECAL_PIERCEPOINT_H_
#define DP3_DDECAL_PIERCEPOINT_H_
 
#include <casacore/measures/Measures/MDirection.h>
#include <casacore/measures/Measures/MCDirection.h>
#include <casacore/measures/Measures/MCPosition.h>
#include <casacore/measures/Measures/MPosition.h>
#include <casacore/measures/Measures/MeasConvert.h>
#include <casacore/measures/Measures/MEpoch.h>
 
#include <armadillo>
 
#include <vector>
 
namespace dp3 {
namespace ddecal {
 
class PiercePoint {
  static const double IONOheight;
 
  static const double EarthRadius;
 
 public:
  PiercePoint(double height = PiercePoint::IONOheight);
  PiercePoint(const casacore::MPosition &ant,
              const casacore::MDirection &source, const double height);
  PiercePoint(const casacore::MPosition &ant,
              const casacore::MDirection &source);
 
  void init(const casacore::MPosition &ant, const casacore::MDirection &source,
            const double height);
 
  void evaluate(casacore::MEpoch time);
  arma::Col<double> getValue() const { return itsValue; }
  casacore::MPosition getPos() const { return itsPosition; }
  casacore::MDirection getDir() const { return itsDirection; }
  double getHeight() const { return itsIonoHeight; }
 
 private:
  casacore::MPosition itsPosition;
  casacore::MDirection itsDirection;
  double itsIonoHeight;
  double itsC;
  arma::Col<double> itsValue;  
};
 
}  // namespace ddecal
}  // namespace dp3
 
#endif