ForwardProjectorByBinUsingProjMatrixByBin.h

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//
//
#ifndef _ForwardProjectorByBinUsingProjMatrixByBin_
#define _ForwardProjectorByBinUsingProjMatrixByBin_

/*
    Copyright (C) 2000 PARAPET partners
    Copyright (C) 2000- 2009, Hammersmith Imanet Ltd
    This file is part of STIR.
 
    SPDX-License-Identifier: Apache-2.0 AND License-ref-PARAPET-license
 
    See STIR/LICENSE.txt for details
*/
 
#include "stir/recon_buildblock/ProjMatrixByBin.h"
#include "stir/recon_buildblock/ForwardProjectorByBin.h"
#include "stir/RegisteredParsingObject.h"
#include "stir/shared_ptr.h"
 
START_NAMESPACE_STIR
 
template <typename elemT>
class RelatedViewgrams;

class ForwardProjectorByBinUsingProjMatrixByBin
    : public RegisteredParsingObject<ForwardProjectorByBinUsingProjMatrixByBin, ForwardProjectorByBin>
{
public:
  static const char* const registered_name;
 
  ForwardProjectorByBinUsingProjMatrixByBin();
 
  ForwardProjectorByBinUsingProjMatrixByBin(const shared_ptr<ProjMatrixByBin>& proj_matrix_ptr);


  void set_up(const shared_ptr<const ProjDataInfo>& proj_data_info_ptr,
              const shared_ptr<const DiscretisedDensity<3, float>>& density_info_ptr // TODO should be Info only
              ) override;
 
  const DataSymmetriesForViewSegmentNumbers* get_symmetries_used() const override;
 
private:
  shared_ptr<ProjMatrixByBin> proj_matrix_ptr;
 
  void actual_forward_project(RelatedViewgrams<float>&,
                              const DiscretisedDensity<3, float>& image,
                              const int min_axial_pos_num,
                              const int max_axial_pos_num,
                              const int min_tangential_pos_num,
                              const int max_tangential_pos_num) override;
 
#if 0 // disabled as currently not used. needs to be written in the new style anyway
  void actual_forward_project(Bin&, const DiscretisedDensity<3,float>&);
#endif
 
  void set_defaults() override;
  void initialise_keymap() override;
  bool post_processing() override;
};
 
END_NAMESPACE_STIR
 
#endif