dox/Imaging/vtkImageReducedFFT.h

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/*=========================================================================

  Program:   vtkCNMRRLibrary
  Module:    $RCSfile: vtkImageReducedFFT.h,v $

  Copyright  2005  The Pennsylvania State University
  
          Notice
 
  The contents of this file are subject to The Pennsylvania State University 
  Open Source License (the "License"); you may not use this file except in 
  compliance with the License. You may obtain a copy of the License at H066 
  Radiology, NMR Building, 500 University Drive, Hershey, PA, 
  tel. (717) 531-6069 or via email at dcb210@psu.edu.
 
  Software distributed under the License is distributed on an "AS IS" basis, 
  WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License 
  for the specific language governing rights and limitations under the 
  License.
 
  The Original Code is listed under Exhibit A of the license.
 
  The Initial Developer of the Original Code is Don Bigler.
 
  Contributor(s):
 
       
  Adapted from vtkImageFFT.h

=========================================================================*/
#ifndef __vtkImageReducedFFT_h
#define __vtkImageReducedFFT_h

// Operation options.
#define VTK_PRUNEDFFT_SAMPLED        0
#define VTK_PRUNEDFFT_COPIED         1

#include "vtkImageMRIFourierFilter.h"
#include "vtkCNMRRImagingWin32Header.h"

class VTK_CNMRR_IMAGING_EXPORT vtkImageReducedFFT : public vtkImageMRIFourierFilter
{
   public:
      static vtkImageReducedFFT *New();
      vtkTypeRevisionMacro(vtkImageReducedFFT,vtkImageMRIFourierFilter);
      

      vtkSetMacro(IFFT, int);
      vtkGetMacro(IFFT, int);
      vtkBooleanMacro(IFFT, int);
   

      vtkSetMacro(Operation,int);
      vtkGetMacro(Operation,int);
      void SetOperationToPrunedFFTSampled() {this->SetOperation(VTK_PRUNEDFFT_SAMPLED);};
      void SetOperationToPrunedFFTCopied() {this->SetOperation(VTK_PRUNEDFFT_COPIED);};
   

      vtkSetMacro(PrunedLength, int);
      vtkGetMacro(PrunedLength, int);
      

      int SplitExtent(int splitExt[6], int startExt[6], 
            int num, int total);
            
   
   protected:
      vtkImageReducedFFT();
      ~vtkImageReducedFFT() {};
         
      int PrunedLength;
      int IFFT;
      int Operation;
      
      virtual int IterativeRequestInformation(vtkInformation* in,
                                          vtkInformation* out);
      virtual int IterativeRequestUpdateExtent(vtkInformation* in,
                                           vtkInformation* out);
      
      void ThreadedExecute(vtkImageData *inData, vtkImageData *outData,
                        int outExt[6], int threadId);
   private:
      vtkImageReducedFFT(const vtkImageReducedFFT&);  // Not implemented.
      void operator=(const vtkImageReducedFFT&);  // Not implemented.
};

#endif

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