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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
/**
* @class vtkUnstructuredGridCellIterator
* @brief Implementation of vtkCellIterator
* specialized for vtkUnstructuredGrid.
*/
#ifndef vtkUnstructuredGridCellIterator_h
#define vtkUnstructuredGridCellIterator_h
#include "vtkCellArrayIterator.h" // Accessing cell array
#include "vtkCellIterator.h"
#include "vtkCommonDataModelModule.h" // For export macro
#include "vtkSmartPointer.h" // For vtkSmartPointer
VTK_ABI_NAMESPACE_BEGIN
class vtkCellArray;
class vtkIdTypeArray;
class vtkUnsignedCharArray;
class vtkUnstructuredGrid;
class vtkPoints;
class VTKCOMMONDATAMODEL_EXPORT vtkUnstructuredGridCellIterator : public vtkCellIterator
{
public:
///@{
/**
* Standard methods for instantiation, type information, and printing.
*/
static vtkUnstructuredGridCellIterator* New();
vtkTypeMacro(vtkUnstructuredGridCellIterator, vtkCellIterator);
void PrintSelf(ostream& os, vtkIndent indent) override;
///@}
///@{
/**
* Override superclass methods.
*/
bool IsDoneWithTraversal() override;
vtkIdType GetCellId() override;
///@}
/**
* A method used to provide random access into cells. The iterator is
* initialized to a specific cell. This method can always be used to set
* the starting location for forward iteration, and it is also used to
* support random access.
*/
void GoToCell(vtkIdType cellId) { this->Cells->GoToCell(cellId); }
protected:
vtkUnstructuredGridCellIterator();
~vtkUnstructuredGridCellIterator() override;
void ResetToFirstCell() override;
void IncrementToNextCell() override;
void FetchCellType() override;
void FetchPointIds() override;
void FetchPoints() override;
void FetchFaces() override;
friend class vtkUnstructuredGrid;
void SetUnstructuredGrid(vtkUnstructuredGrid* ug);
vtkSmartPointer<vtkCellArrayIterator> Cells;
vtkSmartPointer<vtkUnsignedCharArray> Types;
vtkSmartPointer<vtkCellArray> PolyFaceConn;
vtkSmartPointer<vtkCellArray> PolyFaceLocs;
vtkSmartPointer<vtkPoints> Coords;
private:
vtkUnstructuredGridCellIterator(const vtkUnstructuredGridCellIterator&) = delete;
void operator=(const vtkUnstructuredGridCellIterator&) = delete;
};
VTK_ABI_NAMESPACE_END
#endif // vtkUnstructuredGridCellIterator_h
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