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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
/**
* @class vtkStructuredGridClip
* @brief Reduces the image extent of the input.
*
* vtkStructuredGridClip will make an image smaller. The output must have
* an image extent which is the subset of the input. The filter has two
* modes of operation:
* 1: By default, the data is not copied in this filter.
* Only the whole extent is modified.
* 2: If ClipDataOn is set, then you will get no more that the clipped
* extent.
*/
#ifndef vtkStructuredGridClip_h
#define vtkStructuredGridClip_h
// I did not make this a subclass of in place filter because
// the references on the data do not matter. I make no modifications
// to the data.
#include "vtkFiltersGeneralModule.h" // For export macro
#include "vtkStructuredGridAlgorithm.h"
VTK_ABI_NAMESPACE_BEGIN
class VTKFILTERSGENERAL_EXPORT vtkStructuredGridClip : public vtkStructuredGridAlgorithm
{
public:
static vtkStructuredGridClip* New();
vtkTypeMacro(vtkStructuredGridClip, vtkStructuredGridAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent) override;
///@{
/**
* The whole extent of the output has to be set explicitly.
*/
void SetOutputWholeExtent(int extent[6], vtkInformation* outInfo = nullptr);
void SetOutputWholeExtent(int minX, int maxX, int minY, int maxY, int minZ, int maxZ);
void GetOutputWholeExtent(int extent[6]);
int* GetOutputWholeExtent() { return this->OutputWholeExtent; }
///@}
void ResetOutputWholeExtent();
///@{
/**
* By default, ClipData is off, and only the WholeExtent is modified.
* the data's extent may actually be larger. When this flag is on,
* the data extent will be no more than the OutputWholeExtent.
*/
vtkSetMacro(ClipData, vtkTypeBool);
vtkGetMacro(ClipData, vtkTypeBool);
vtkBooleanMacro(ClipData, vtkTypeBool);
///@}
protected:
vtkStructuredGridClip();
~vtkStructuredGridClip() override = default;
// Time when OutputImageExtent was computed.
vtkTimeStamp CTime;
int Initialized; // Set the OutputImageExtent for the first time.
int OutputWholeExtent[6];
vtkTypeBool ClipData;
int RequestInformation(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
void CopyData(vtkStructuredGrid* inData, vtkStructuredGrid* outData, int* ext);
int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
private:
vtkStructuredGridClip(const vtkStructuredGridClip&) = delete;
void operator=(const vtkStructuredGridClip&) = delete;
};
VTK_ABI_NAMESPACE_END
#endif
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