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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
/**
* @class vtkAlignImageDataSetFilter
* @brief align collection of image datasets to use a global origin
*
* When dealing with a collection of image datasets, either in a composite
* dataset or in a distributed environment, it is not uncommon to have each
* dataset have its own unique origin such that the extents for each start at 0.
* However, if the images are parts of a whole, then several filters like
* vtkExtractVOI that simply use extents fail to execute correctly. Such
* filters require that all parts use the same global origin and set local
* extents accordingly. This filter can be used to align such image
* datasets. Essentially, this filter ensures all image datasets have the same
* origin and each blocks extents are set relative to that origin. This requires
* that all images have the same spacing.
*/
#ifndef vtkAlignImageDataSetFilter_h
#define vtkAlignImageDataSetFilter_h
#include "vtkFiltersParallelModule.h" // for export macros
#include "vtkPassInputTypeAlgorithm.h"
VTK_ABI_NAMESPACE_BEGIN
class vtkMultiProcessController;
class VTKFILTERSPARALLEL_EXPORT vtkAlignImageDataSetFilter : public vtkPassInputTypeAlgorithm
{
public:
static vtkAlignImageDataSetFilter* New();
vtkTypeMacro(vtkAlignImageDataSetFilter, vtkPassInputTypeAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent) override;
///@{
/**
* Get/Set the controller to use. By default
* vtkMultiProcessController::GlobalController will be used.
*/
void SetController(vtkMultiProcessController*);
vtkGetObjectMacro(Controller, vtkMultiProcessController);
///@}
///@{
/**
* Specify the global minimum extent to use. By default this is set to `(0,0,0)`.
*/
vtkSetVector3Macro(MinimumExtent, int);
vtkGetVector3Macro(MinimumExtent, int);
///@}
protected:
vtkAlignImageDataSetFilter();
~vtkAlignImageDataSetFilter() override;
int FillInputPortInformation(int port, vtkInformation* info) override;
int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
private:
vtkAlignImageDataSetFilter(const vtkAlignImageDataSetFilter&) = delete;
void operator=(const vtkAlignImageDataSetFilter&) = delete;
vtkMultiProcessController* Controller;
int MinimumExtent[3];
};
VTK_ABI_NAMESPACE_END
#endif
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