Viewgram.h

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//
//
/*
    Copyright (C) 2000 PARAPET partners
    Copyright (C) 2000 - 2007-10-08, Hammersmith Imanet Ltd
    Copyright (C) 2011-07-01 - 2012, Kris Thielemans
    Copyright (C) 2023, 2026 University College London
    This file is part of STIR.
 
    SPDX-License-Identifier: Apache-2.0 AND License-ref-PARAPET-license
 
    See STIR/LICENSE.txt for details
*/
#ifndef __Viewgram_h__
#define __Viewgram_h__
 
#include "stir/Array.h"
#include "stir/DataWithProjDataInfo.h"
#include "stir/ViewgramIndices.h"
#include "stir/IndexRange.h"
#include "stir/shared_ptr.h"
 
START_NAMESPACE_STIR

 
template <typename elemT>
class Viewgram : public Array<2, elemT>, public DataWithProjDataInfo
{
  typedef Array<2, elemT> base_type;
#ifdef STIR_COMPILING_SWIG_WRAPPER
  // SWIG needs the next typedef to be public
public:
#endif
  typedef Viewgram<elemT> self_type;
 
public:
  Viewgram(const shared_ptr<const ProjDataInfo>& proj_data_info_ptr, const ViewgramIndices& ind);

  Viewgram(const Array<2, elemT>& p, const shared_ptr<const ProjDataInfo>& proj_data_info_sptr, const ViewgramIndices& ind);


  Viewgram(const shared_ptr<const ProjDataInfo>& proj_data_info_ptr, const int v_num, const int s_num, const int t_num = 0);


  Viewgram(const Array<2, elemT>& p,
           const shared_ptr<const ProjDataInfo>& proj_data_info_ptr,
           const int v_num,
           const int s_num,
           const int t_num = 0);

  inline ViewgramIndices get_viewgram_indices() const;
  inline int get_segment_num() const;
  inline int get_view_num() const;
  inline int get_timing_pos_num() const;
  inline int get_min_axial_pos_num() const;
  inline int get_max_axial_pos_num() const;
  inline int get_num_axial_poss() const;

  Viewgram get_empty_copy(void) const;

  void grow(const IndexRange<2>& range) override;
  void resize(const IndexRange<2>& range) override;



  bool has_same_characteristics(self_type const&, std::string& explanation) const;


  bool has_same_characteristics(self_type const&) const;


  bool operator==(const self_type&) const;

  bool operator!=(const self_type&) const;
 
private:
  ViewgramIndices _indices;
};
 
END_NAMESPACE_STIR
 
#include "stir/Viewgram.inl"
 
#endif