vtkImageResize.h

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

  Program:   Visualization Toolkit
  Module:    vtkImageResize.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.

=========================================================================*/
#ifndef __vtkImageResize_h
#define __vtkImageResize_h

#include "vtkImagingCoreModule.h" // For export macro
#include "vtkThreadedImageAlgorithm.h"

class vtkAbstractImageInterpolator;

class VTKIMAGINGCORE_EXPORT vtkImageResize : public vtkThreadedImageAlgorithm
{
public:
  static vtkImageResize *New();
  vtkTypeMacro(vtkImageResize, vtkThreadedImageAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent);

  enum
    {
    OUTPUT_DIMENSIONS,
    OUTPUT_SPACING,
    MAGNIFICATION_FACTORS
    };


  vtkSetClampMacro(ResizeMethod, int, OUTPUT_DIMENSIONS, MAGNIFICATION_FACTORS);
  vtkGetMacro(ResizeMethod, int);
  void SetResizeMethodToOutputDimensions() {
    this->SetResizeMethod(OUTPUT_DIMENSIONS); }
  void SetResizeMethodToOutputSpacing() {
    this->SetResizeMethod(OUTPUT_SPACING); }
  void SetResizeMethodToMagnificationFactors() {
    this->SetResizeMethod(MAGNIFICATION_FACTORS); }
  virtual const char *GetResizeMethodAsString();


  vtkSetVector3Macro(OutputDimensions, int);
  vtkGetVector3Macro(OutputDimensions, int);


  vtkSetVector3Macro(OutputSpacing, double);
  vtkGetVector3Macro(OutputSpacing, double);


  vtkSetVector3Macro(MagnificationFactors, double);
  vtkGetVector3Macro(MagnificationFactors, double);


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


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


  vtkSetVector6Macro(CroppingRegion, double);
  vtkGetVector6Macro(CroppingRegion, double);


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


  virtual void SetInterpolator(vtkAbstractImageInterpolator *sampler);
  virtual vtkAbstractImageInterpolator *GetInterpolator();

  unsigned long int GetMTime();

protected:
  vtkImageResize();
  ~vtkImageResize();

  virtual vtkAbstractImageInterpolator *GetInternalInterpolator();

  virtual int RequestInformation(vtkInformation *, vtkInformationVector **,
                                 vtkInformationVector *);
  virtual int RequestUpdateExtent(vtkInformation *, vtkInformationVector **,
                                  vtkInformationVector *);
  virtual int RequestData(vtkInformation *, vtkInformationVector **,
                          vtkInformationVector *);
  virtual void ThreadedRequestData(vtkInformation *request,
                                   vtkInformationVector **inputVector,
                                   vtkInformationVector *outputVector,
                                   vtkImageData ***inData,
                                   vtkImageData **outData, int ext[6], int id);

  int ResizeMethod;
  int OutputDimensions[3];
  double OutputSpacing[3];
  double MagnificationFactors[3];
  int Border;
  int Cropping;
  double CroppingRegion[6];

  double IndexStretch[3];
  double IndexTranslate[3];

  vtkAbstractImageInterpolator *Interpolator;
  vtkAbstractImageInterpolator *NNInterpolator;
  int Interpolate;

private:
  vtkImageResize(const vtkImageResize&);  // Not implemented.
  void operator=(const vtkImageResize&);  // Not implemented.
};

#endif