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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
/**
* @class vtkBridgePointIterator
* @brief Implementation of vtkGenericPointIterator.
*
* 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
* vtkGenericPointIterator, vtkBridgeDataSet
*/
#ifndef vtkBridgePointIterator_h
#define vtkBridgePointIterator_h
#include "vtkBridgeExport.h" //for module export macro
#include "vtkGenericPointIterator.h"
VTK_ABI_NAMESPACE_BEGIN
class vtkBridgeDataSet;
class vtkBridgeCell;
class vtkBridgePointIteratorOnDataSet;
class vtkBridgePointIteratorOne;
class vtkBridgePointIteratorOnCell;
class VTKTESTINGGENERICBRIDGE_EXPORT vtkBridgePointIterator : public vtkGenericPointIterator
{
public:
static vtkBridgePointIterator* New();
vtkTypeMacro(vtkBridgePointIterator, vtkGenericPointIterator);
void PrintSelf(ostream& os, vtkIndent indent) override;
/**
* Move iterator to first position if any (loop initialization).
*/
void Begin() override;
/**
* Is there no point at iterator position? (exit condition).
*/
vtkTypeBool IsAtEnd() override;
/**
* Move iterator to next position. (loop progression).
* \pre not_off: !IsAtEnd()
*/
void Next() override;
/**
* Point at iterator position.
* \pre not_off: !IsAtEnd()
* \post result_exists: result!=0
*/
double* GetPosition() override;
/**
* Point at iterator position.
* \pre not_off: !IsAtEnd()
* \pre x_exists: x!=0
*/
void GetPosition(double x[3]) override;
/**
* Unique identifier for the point, could be non-contiguous
* \pre not_off: !IsAtEnd()
*/
vtkIdType GetId() override;
/**
* Used internally by vtkBridgeDataSet.
* Iterate over points of `ds'.
* \pre ds_exists: ds!=0
*/
void InitWithDataSet(vtkBridgeDataSet* ds);
/**
* Used internally by vtkBridgeDataSet.
* Iterate over one point of identifier `id' on dataset `ds'.
* \pre ds_can_be_null: ds!=0 || ds==0
* \pre valid_id: vtkImplies(ds!=0,(id>=0)&&(id<=ds->GetNumberOfCells()))
*/
void InitWithOnePoint(vtkBridgeDataSet* ds, vtkIdType id);
/**
* The iterator will iterate over the point of a cell
* \pre cell_exists: cell!=0
*/
void InitWithCell(vtkBridgeCell* cell);
protected:
/**
* Default constructor.
*/
vtkBridgePointIterator();
/**
* Destructor.
*/
~vtkBridgePointIterator() override;
vtkGenericPointIterator* CurrentIterator;
vtkBridgePointIteratorOnDataSet* IteratorOnDataSet;
vtkBridgePointIteratorOne* IteratorOne;
vtkBridgePointIteratorOnCell* IteratorOnCell;
private:
vtkBridgePointIterator(const vtkBridgePointIterator&) = delete;
void operator=(const vtkBridgePointIterator&) = delete;
};
VTK_ABI_NAMESPACE_END
#endif
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