NullStokes.h

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// NullStokes.h: DP3 step class for zeroing out Stokes parameters
// Copyright (C) 2022 ASTRON (Netherlands Institute for Radio Astronomy)
// SPDX-License-Identifier: GPL-3.0-or-later
 
 
#ifndef DP3_STEPS_NULL_STOKES_H
#define DP3_STEPS_NULL_STOKES_H
 
#include "InputStep.h"
#include "common/ParameterSet.h"
 
#include "base/DPBuffer.h"
 
namespace dp3 {
 
namespace steps {
 
void MakeStokesIZero(std::complex<float>* visibilities);
void MakeStokesQZero(std::complex<float>* visibilities);
void MakeStokesUZero(std::complex<float>* visibilities);
void MakeStokesVZero(std::complex<float>* visibilities);
 
 
 
class NullStokes : public Step {
 public:
  explicit NullStokes(const common::ParameterSet&, const std::string& prefix);
 
  common::Fields getRequiredFields() const override { return kDataField; }
 
  common::Fields getProvidedFields() const override { return kDataField; }
 
  bool process(std::unique_ptr<base::DPBuffer> buffer) override;
 
  void finish() override;
 
  void updateInfo(const base::DPInfo&) override;
 
  void show(std::ostream&) const override;
 
  void showTimings(std::ostream&, double duration) const override;
 
 private:
  std::string name_;
  common::NSTimer timer_;
  bool modify_i_;
  bool modify_q_;
  bool modify_u_;
  bool modify_v_;
};
 
}  // namespace steps
 
}  // namespace dp3
 
#endif