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vtkImageShiftScale.h
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vtkImageShiftScale.h
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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.
=========================================================================*/
/**
* @class vtkImageShiftScale
* @brief shift and scale an input image
*
* 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);
//@{
/**
* Set/Get the shift value. This value is added to each pixel
*/
vtkSetMacro(Shift,double);
vtkGetMacro(Shift,double);
//@}
//@{
/**
* Set/Get the scale value. Each pixel is multiplied by this value.
*/
vtkSetMacro(Scale,double);
vtkGetMacro(Scale,double);
//@}
//@{
/**
* 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);}
//@}
//@{
/**
* 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.
* Clamping is safer because otherwise you might invoke undefined
* behavior (and may crash) if the type conversion is out of range
* of the data type. On the other hand, clamping is slower.
* 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&) VTK_DELETE_FUNCTION;
void operator=(const vtkImageShiftScale&) VTK_DELETE_FUNCTION;
};
#endif