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/*=========================================================================
Program: Visualization Toolkit
Module: vtkImageShiftScale.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.
=========================================================================*/
// .NAME vtkImageShiftScale - shift and scale an input image
// .SECTION Description
// With vtkImageShiftScale Pixels are shifted (a constant value added)
// and then scaled (multiplied by a scalar. As a convenience, this class
// allows you to set the output scalar type similar to vtkImageCast.
// This is because shift scale operations frequently convert data types.
#ifndef __vtkImageShiftScale_h
#define __vtkImageShiftScale_h
#include "vtkImagingCoreModule.h" // For export macro
#include "vtkThreadedImageAlgorithm.h"
class VTKIMAGINGCORE_EXPORT vtkImageShiftScale : public vtkThreadedImageAlgorithm
{
public:
static vtkImageShiftScale *New();
vtkTypeMacro(vtkImageShiftScale,vtkThreadedImageAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Set/Get the shift value. This value is added to each pixel
vtkSetMacro(Shift,double);
vtkGetMacro(Shift,double);
// Description:
// Set/Get the scale value. Each pixel is multiplied by this value.
vtkSetMacro(Scale,double);
vtkGetMacro(Scale,double);
// Description:
// Set the desired output scalar type. The result of the shift
// and scale operations is cast to the type specified.
vtkSetMacro(OutputScalarType, int);
vtkGetMacro(OutputScalarType, int);
void SetOutputScalarTypeToDouble()
{this->SetOutputScalarType(VTK_DOUBLE);}
void SetOutputScalarTypeToFloat()
{this->SetOutputScalarType(VTK_FLOAT);}
void SetOutputScalarTypeToLong()
{this->SetOutputScalarType(VTK_LONG);}
void SetOutputScalarTypeToUnsignedLong()
{this->SetOutputScalarType(VTK_UNSIGNED_LONG);};
void SetOutputScalarTypeToInt()
{this->SetOutputScalarType(VTK_INT);}
void SetOutputScalarTypeToUnsignedInt()
{this->SetOutputScalarType(VTK_UNSIGNED_INT);}
void SetOutputScalarTypeToShort()
{this->SetOutputScalarType(VTK_SHORT);}
void SetOutputScalarTypeToUnsignedShort()
{this->SetOutputScalarType(VTK_UNSIGNED_SHORT);}
void SetOutputScalarTypeToChar()
{this->SetOutputScalarType(VTK_CHAR);}
void SetOutputScalarTypeToUnsignedChar()
{this->SetOutputScalarType(VTK_UNSIGNED_CHAR);}
// Description:
// When the ClampOverflow flag is on, the data is thresholded so that
// the output value does not exceed the max or min of the data type.
// By default, ClampOverflow is off.
vtkSetMacro(ClampOverflow, int);
vtkGetMacro(ClampOverflow, int);
vtkBooleanMacro(ClampOverflow, int);
protected:
vtkImageShiftScale();
~vtkImageShiftScale();
double Shift;
double Scale;
int OutputScalarType;
int ClampOverflow;
virtual int RequestInformation(vtkInformation*,
vtkInformationVector**,
vtkInformationVector*);
virtual void ThreadedRequestData(vtkInformation*,
vtkInformationVector**,
vtkInformationVector*,
vtkImageData*** inData,
vtkImageData** outData,
int outExt[6],
int threadId);
private:
vtkImageShiftScale(const vtkImageShiftScale&); // Not implemented.
void operator=(const vtkImageShiftScale&); // Not implemented.
};
#endif
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