vtkDGArraysInputAccessor.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkDGArraysInputAccessor_h
#define vtkDGArraysInputAccessor_h
 
#include "vtkFiltersCellGridModule.h" // For export macro.
#include "vtkVector.h"                // For API.
 
VTK_ABI_NAMESPACE_BEGIN
 
class vtkDataArray;
 
class VTKFILTERSCELLGRID_EXPORT vtkDGArraysInputAccessor
{
public:
  vtkDGArraysInputAccessor() = default;
  vtkDGArraysInputAccessor(vtkDataArray* cellIds, vtkDataArray* rst);
  vtkDGArraysInputAccessor(const vtkDGArraysInputAccessor& other);
  ~vtkDGArraysInputAccessor();
 
  vtkDGArraysInputAccessor& operator=(const vtkDGArraysInputAccessor& other);
 
  void SetCellIds(vtkDataArray* cellIds);
  void SetRST(vtkDataArray* rst);
 
  vtkIdType GetCellId(vtkTypeUInt64 iteration);
  vtkVector3d GetParameter(vtkTypeUInt64 iteration);
  vtkTypeUInt64 GetKey() const { return this->Key; }
  void Restart();
  bool IsAtEnd() const;
 
  std::size_t size() const;
 
  vtkTypeUInt64 operator++();
  vtkTypeUInt64 operator++(int);
 
  vtkDGArraysInputAccessor& operator+=(vtkTypeUInt64 count);
 
protected:
  vtkTypeUInt64 Key{ 0 };
  vtkDataArray* CellIds{ nullptr };
  vtkDataArray* RST{ nullptr };
};
 
VTK_ABI_NAMESPACE_END
 
#endif // vtkDGArraysInputAccessor_h