DynamicProjData.h

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/*
    Copyright (C) 2005 - 2011-01-04, Hammersmith Imanet Ltd
    Copyright (C) 2013, Kris Thielemans
    Copyright (C) 2013, University College London
    This file is part of STIR.
 
    SPDX-License-Identifier: Apache-2.0
 
    See STIR/LICENSE.txt for details
*/
#ifndef __stir__DynamicProjData__H__
#define __stir__DynamicProjData__H__
#include "stir/MultipleProjData.h"
#include "stir/TimeFrameDefinitions.h"
#include "stir/SegmentByView.h"
#include "stir/Succeeded.h"
#include "stir/error.h"
#include <string>
 
START_NAMESPACE_STIR
 
class Succeeded;

class DynamicProjData : public MultipleProjData
{
public:
  static unique_ptr<DynamicProjData> read_from_file(const std::string& filename);
 
  DynamicProjData() {}
 
  DynamicProjData(const MultipleProjData& m)
      : MultipleProjData(m)
  {}
 
  DynamicProjData(const shared_ptr<const ExamInfo>& exam_info_sptr)
      : MultipleProjData(exam_info_sptr)
  {}
 
  DynamicProjData(const shared_ptr<const ExamInfo>& exam_info_sptr, const int num_gates)
      : MultipleProjData(exam_info_sptr, num_gates)
  {}


  const double get_start_time_in_secs_since_1970() const;


  void set_start_time_in_secs_since_1970(const double start_time);
  unsigned int get_num_frames() const { return this->get_num_proj_data(); }
 
  Succeeded write_to_ecat7(const std::string& filename) const;
 
  void set_time_frame_definitions(const TimeFrameDefinitions& time_frame_definitions);
 
  const TimeFrameDefinitions& get_time_frame_definitions() const;


  void calibrate_frames(const float cal_factor)
  {
    for (unsigned int frame_num = 1; frame_num <= this->get_time_frame_definitions().get_num_frames(); ++frame_num)
      for (int segment_num = (this->_proj_datas[frame_num - 1])->get_min_segment_num();
           segment_num <= (this->_proj_datas[frame_num - 1])->get_max_segment_num();
           ++segment_num)
        {
          for (int timing_pos_num = (this->_proj_datas[frame_num - 1])->get_min_tof_pos_num();
               timing_pos_num <= (this->_proj_datas[frame_num - 1])->get_max_tof_pos_num();
               ++timing_pos_num)
            {
              SegmentByView<float> segment_by_view(
                  (*(this->_proj_datas[frame_num - 1])).get_segment_by_view(segment_num, timing_pos_num));
              segment_by_view *= cal_factor;
              if ((*(this->_proj_datas[frame_num - 1])).set_segment(segment_by_view) == Succeeded::no)
                {
                  error("DynamicProjData:calibrate_frames failed because set_segment_by_view failed");
                }
            }
        }
  }


  void divide_with_duration()
  {
    // do reading/writing in a loop over segments
    for (unsigned int frame_num = 1; frame_num <= this->get_time_frame_definitions().get_num_frames(); ++frame_num)
      for (int segment_num = (this->_proj_datas[frame_num - 1])->get_min_segment_num();
           segment_num <= (this->_proj_datas[frame_num - 1])->get_max_segment_num();
           ++segment_num)
        {
          for (int timing_pos_num = (this->_proj_datas[frame_num - 1])->get_min_tof_pos_num();
               timing_pos_num <= (this->_proj_datas[frame_num - 1])->get_max_tof_pos_num();
               ++timing_pos_num)
            {
              SegmentByView<float> segment_by_view
                  = (*(this->_proj_datas[frame_num - 1])).get_segment_by_view(segment_num, timing_pos_num);
              segment_by_view /= static_cast<float>(this->get_time_frame_definitions().get_duration(frame_num));
              if ((*(this->_proj_datas[frame_num - 1])).set_segment(segment_by_view) == Succeeded::no)
                {
                  error("DynamicProjData:calibrate_frames failed because set_segment_by_view failed");
                }
            }
        }
  }
};


 
template <>
struct CopyFill<DynamicProjData>
{
  template <typename iterT>
  static iterT copy_to(const DynamicProjData& stir_object, iterT iter)
  {
    // std::cerr<<"Using DynamicProjData::copy_to\n";
    return stir_object.copy_to(iter);
  }
};


template <typename iterT>
void
fill_from(DynamicProjData& stir_object, iterT iter, iterT /*iter_end*/)
{
  return stir_object.fill_from(iter);
}
 
END_NAMESPACE_STIR
#endif