Filter.h

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// Filter.h: DP3 step to filter out baselines and channels
// Copyright (C) 2022 ASTRON (Netherlands Institute for Radio Astronomy)
// SPDX-License-Identifier: GPL-3.0-or-later
 
 
#ifndef DP3_STEPS_FILTER_H_
#define DP3_STEPS_FILTER_H_
 
#include "Step.h"
#include "base/BaselineSelection.h"
#include "base/DPBuffer.h"
#include "common/ParameterSet.h"
#include "common/Timer.h"
 
namespace dp3 {
namespace steps {
 
 
class Filter final : public Step {
 public:
  Filter();
 
  Filter(const common::ParameterSet&, const std::string& prefix);
 
  Filter(const base::BaselineSelection&);
 
  ~Filter() override;
 
  common::Fields getRequiredFields() const override;
 
  common::Fields getProvidedFields() const override;
 
  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;
 
  void addToMS(const std::string& msName) override;
 
  bool hasSelection() const { return itsDoSelect; }
 
  const std::vector<unsigned int>& getIndicesBL() const { return itsSelBL; }
 
 private:
  casacore::Vector<int> createIdMap(
      common::rownr_t nrId,
      const casacore::Vector<common::rownr_t>& removedIds) const;
 
  casacore::Vector<common::rownr_t> renumberSubTable(
      const casacore::Table& ms, const casacore::String& name,
      const casacore::String& colName,
      const casacore::Vector<common::rownr_t>& removedAnt,
      const casacore::Vector<int>& antMap, common::rownr_t& nrId) const;
 
  std::string itsName;
  casacore::String itsStartChanStr;  
  casacore::String itsNrChanStr;     
  bool itsRemoveAnt;                 
  base::BaselineSelection itsBaselines;
  unsigned int itsStartChan;
  std::vector<unsigned int> itsSelBL;  
  bool itsDoSelect;                    
  common::NSTimer itsTimer;
};
 
}  // namespace steps
}  // namespace dp3
 
#endif