text: // -*- c++ -*-
  /*=========================================================================
  
    Program:   Visualization Toolkit
    Module:    vtkTableFFT.h
  
    Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
    All rights reserved.
    See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
  
       This software is distributed WITHOUT ANY WARRANTY; without even
       the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
       PURPOSE.  See the above copyright notice for more information.
  
  =========================================================================*/
  
  /*-------------------------------------------------------------------------
    Copyright 2009 Sandia Corporation.
    Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
    the U.S. Government retains certain rights in this software.
  -------------------------------------------------------------------------*/
  
  /**
   * @class   vtkTableFFT
   * @brief   FFT for table columns
   *
   *
   *
   * vtkTableFFT performs the Fast Fourier Transform on the columns of a table.
   * Internally, it shoves each column into an image data and then uses
   * vtkImageFFT to perform the actual FFT.
   *
   *
   * @sa
   * vtkImageFFT
   *
  */
  
  #ifndef vtkTableFFT_h
  #define vtkTableFFT_h
  
  #include "vtkTableAlgorithm.h"
  #include "vtkImagingFourierModule.h" // For export macro
  #include "vtkSmartPointer.h"    // For internal method.
  
  class VTKIMAGINGFOURIER_EXPORT vtkTableFFT : public vtkTableAlgorithm
  {
  public:
    vtkTypeMacro(vtkTableFFT, vtkTableAlgorithm);
    static vtkTableFFT *New();
    void PrintSelf(ostream &os, vtkIndent indent) override;
  
  protected:
    vtkTableFFT();
    ~vtkTableFFT() override;
  
    int RequestData(vtkInformation *request,
                            vtkInformationVector **inputVector,
                            vtkInformationVector *outputVector) override;
  
    /**
     * Perform the FFT on the given data array.
     */
    virtual vtkSmartPointer<vtkDataArray> DoFFT(vtkDataArray *input);
  
  private:
    vtkTableFFT(const vtkTableFFT &) = delete;
    void operator=(const vtkTableFFT &) = delete;
  };
  
  
  #endif //vtkTableFFT_h
  