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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
/**
* @class vtkBridgeCellIterator
* @brief Implementation of vtkGenericCellIterator.
* It is just an example that show how to implement the Generic API. It is also
* used for testing and evaluating the Generic framework.
* @sa
* vtkGenericCellIterator, vtkBridgeDataSet
*/
#ifndef vtkBridgeCellIterator_h
#define vtkBridgeCellIterator_h
#include "vtkBridgeExport.h" //for module export macro
#include "vtkGenericCellIterator.h"
VTK_ABI_NAMESPACE_BEGIN
class vtkBridgeCell;
class vtkBridgeDataSet;
class vtkBridgeCell;
class vtkIdList;
class vtkBridgeDataSet;
class vtkPoints;
class vtkBridgeCellIteratorStrategy;
class vtkBridgeCellIteratorOnDataSet;
class vtkBridgeCellIteratorOne;
class vtkBridgeCellIteratorOnCellBoundaries;
class vtkBridgeCellIteratorOnCellList;
class VTKTESTINGGENERICBRIDGE_EXPORT vtkBridgeCellIterator : public vtkGenericCellIterator
{
public:
static vtkBridgeCellIterator* New();
vtkTypeMacro(vtkBridgeCellIterator, vtkGenericCellIterator);
void PrintSelf(ostream& os, vtkIndent indent) override;
/**
* Move iterator to first position if any (loop initialization).
*/
void Begin() override;
/**
* Is there no cell at iterator position? (exit condition).
*/
vtkTypeBool IsAtEnd() override;
/**
* Create an empty cell.
* \post result_exists: result!=0
*/
vtkGenericAdaptorCell* NewCell() override;
/**
* Cell at current position
* \pre not_at_end: !IsAtEnd()
* \pre c_exists: c!=0
* THREAD SAFE
*/
void GetCell(vtkGenericAdaptorCell* c) override;
/**
* Cell at current position.
* NOT THREAD SAFE
* \pre not_at_end: !IsAtEnd()
* \post result_exits: result!=0
*/
vtkGenericAdaptorCell* GetCell() override;
/**
* Move iterator to next position. (loop progression).
* \pre not_at_end: !IsAtEnd()
*/
void Next() override;
/**
* Used internally by vtkBridgeDataSet.
* Iterate over cells of `ds' of some dimension `dim'.
* \pre ds_exists: ds!=0
* \pre valid_dim_range: (dim>=-1) && (dim<=3)
*/
void InitWithDataSet(vtkBridgeDataSet* ds, int dim);
/**
* Used internally by vtkBridgeDataSet.
* Iterate over boundary cells of `ds' of some dimension `dim'.
* \pre ds_exists: ds!=0
* \pre valid_dim_range: (dim>=-1) && (dim<=3)
*/
void InitWithDataSetBoundaries(vtkBridgeDataSet* ds, int dim, int exterior_only);
/**
* Used internally by vtkBridgeDataSet.
* Iterate on one cell `id' of `ds'.
* \pre ds_exists: ds!=0
* \pre valid_id: (id>=0)&&(id<=ds->GetNumberOfCells())
*/
void InitWithOneCell(vtkBridgeDataSet* ds, vtkIdType cellid);
/**
* Used internally by vtkBridgeCell.
* Iterate on one cell `c'.
* \pre c_exists: c!=0
*/
void InitWithOneCell(vtkBridgeCell* c);
/**
* Used internally by vtkBridgeCell.
* Iterate on boundary cells of a cell.
* \pre cell_exists: cell!=0
* \pre valid_dim_range: (dim==-1) || ((dim>=0)&&(dim<cell->GetDimension()))
*/
void InitWithCellBoundaries(vtkBridgeCell* cell, int dim);
/**
* Used internally by vtkBridgeCell.
* Iterate on neighbors defined by `cells' over the dataset `ds'.
* \pre cells_exist: cells!=0
* \pre ds_exists: ds!=0
*/
void InitWithCells(vtkIdList* cells, vtkBridgeDataSet* ds);
/**
* Used internally by vtkBridgeCell.
* Iterate on a boundary cell (defined by its points `pts' with coordinates
* `coords', dimension `dim' and unique id `cellid') of a cell.
* \pre coords_exist: coords!=0
* \pre pts_exist: pts!=0
* \pre valid_dim: dim>=0 && dim<=2
* \pre valid_points: pts->GetNumberOfIds()>dim
*/
void InitWithPoints(vtkPoints* coords, vtkIdList* pts, int dim, vtkIdType cellid);
protected:
vtkBridgeCellIterator();
~vtkBridgeCellIterator() override;
vtkBridgeCellIteratorStrategy* CurrentIterator;
vtkBridgeCellIteratorOnDataSet* IteratorOnDataSet;
vtkBridgeCellIteratorOne* IteratorOneCell;
vtkBridgeCellIteratorOnCellBoundaries* IteratorOnCellBoundaries;
vtkBridgeCellIteratorOnCellList* IteratorOnCellList;
vtkBridgeDataSet* DataSet; // the structure on which the object iterates.
vtkIdType Id; // the id at current position.
int OneCell; // Is in one cell mode?
vtkIdType Size; // size of the structure.
vtkBridgeCell* Cell; // cell at current position.
private:
vtkBridgeCellIterator(const vtkBridgeCellIterator&) = delete;
void operator=(const vtkBridgeCellIterator&) = delete;
};
VTK_ABI_NAMESPACE_END
#endif
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