vtkImageResize.h

Go to the documentation of this file.

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

  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) override;

  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, vtkTypeBool);
  vtkBooleanMacro(Border, vtkTypeBool);
  vtkGetMacro(Border, vtkTypeBool);


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


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


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


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

  vtkMTimeType GetMTime() override;

protected:
  vtkImageResize();
  ~vtkImageResize() override;

  virtual vtkAbstractImageInterpolator *GetInternalInterpolator();

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

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

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

  vtkAbstractImageInterpolator *Interpolator;
  vtkAbstractImageInterpolator *NNInterpolator;
  vtkTypeBool Interpolate;

private:
  vtkImageResize(const vtkImageResize&) = delete;
  void operator=(const vtkImageResize&) = delete;
};

#endif