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96 lines
3.5 KiB
96 lines
3.5 KiB
2 years ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkImageIterateFilter.h,v $
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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// .NAME vtkImageIterateFilter - Multiple executes per update.
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// .SECTION Description
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// vtkImageIterateFilter is a filter superclass that supports calling execute
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// multiple times per update. The largest hack/open issue is that the input
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// and output caches are temporarily changed to "fool" the subclasses. I
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// believe the correct solution is to pass the in and out cache to the
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// subclasses methods as arguments. Now the data is passes. Can the caches
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// be passed, and data retrieved from the cache?
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#ifndef __vtkImageIterateFilter_h
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#define __vtkImageIterateFilter_h
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#include "vtkThreadedImageAlgorithm.h"
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class VTK_IMAGING_EXPORT vtkImageIterateFilter : public vtkThreadedImageAlgorithm
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{
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public:
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vtkTypeRevisionMacro(vtkImageIterateFilter,vtkThreadedImageAlgorithm);
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void PrintSelf(ostream& os, vtkIndent indent);
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// Description:
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// Get which iteration is current being performed. Normally the
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// user will not access this method.
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vtkGetMacro(Iteration,int);
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vtkGetMacro(NumberOfIterations,int);
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protected:
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vtkImageIterateFilter();
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~vtkImageIterateFilter();
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// Implement standard requests by calling iterative versions the
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// specified number of times.
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virtual int RequestUpdateExtent(vtkInformation*,
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vtkInformationVector**,
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vtkInformationVector*);
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virtual int RequestInformation (vtkInformation*,
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vtkInformationVector**,
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vtkInformationVector*);
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virtual int RequestData(vtkInformation* request,
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vtkInformationVector** inputVector,
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vtkInformationVector* outputVector);
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// Iterative versions of standard requests. These are given the
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// pipeline information object for the in/out pair at each
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// iteration.
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virtual int IterativeRequestInformation(vtkInformation* in,
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vtkInformation* out);
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virtual int IterativeRequestUpdateExtent(vtkInformation* in,
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vtkInformation* out);
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virtual int IterativeRequestData(vtkInformation*,
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vtkInformationVector**,
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vtkInformationVector*);
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virtual void SetNumberOfIterations(int num);
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// for filters that execute multiple times.
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int NumberOfIterations;
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int Iteration;
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// A list of intermediate caches that is created when
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// is called SetNumberOfIterations()
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vtkImageData **IterationData;
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// returns correct vtkImageDatas based on current iteration.
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vtkImageData *GetIterationInput();
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vtkImageData *GetIterationOutput();
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vtkInformationVector* InputVector;
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vtkInformationVector* OutputVector;
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private:
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vtkImageIterateFilter(const vtkImageIterateFilter&); // Not implemented.
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void operator=(const vtkImageIterateFilter&); // Not implemented.
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};
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#endif
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