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124 lines
4.0 KiB
C++
124 lines
4.0 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkImageShiftScale.h
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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/**
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* @class vtkImageShiftScale
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* @brief shift and scale an input image
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*
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* With vtkImageShiftScale Pixels are shifted (a constant value added)
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* and then scaled (multiplied by a scalar. As a convenience, this class
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* allows you to set the output scalar type similar to vtkImageCast.
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* This is because shift scale operations frequently convert data types.
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*/
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#ifndef vtkImageShiftScale_h
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#define vtkImageShiftScale_h
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#include "vtkImagingCoreModule.h" // For export macro
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#include "vtkThreadedImageAlgorithm.h"
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class VTKIMAGINGCORE_EXPORT vtkImageShiftScale : public vtkThreadedImageAlgorithm
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{
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public:
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static vtkImageShiftScale *New();
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vtkTypeMacro(vtkImageShiftScale,vtkThreadedImageAlgorithm);
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void PrintSelf(ostream& os, vtkIndent indent);
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//@{
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/**
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* Set/Get the shift value. This value is added to each pixel
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*/
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vtkSetMacro(Shift,double);
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vtkGetMacro(Shift,double);
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//@}
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//@{
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/**
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* Set/Get the scale value. Each pixel is multiplied by this value.
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*/
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vtkSetMacro(Scale,double);
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vtkGetMacro(Scale,double);
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//@}
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//@{
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/**
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* Set the desired output scalar type. The result of the shift
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* and scale operations is cast to the type specified.
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*/
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vtkSetMacro(OutputScalarType, int);
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vtkGetMacro(OutputScalarType, int);
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void SetOutputScalarTypeToDouble()
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{this->SetOutputScalarType(VTK_DOUBLE);}
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void SetOutputScalarTypeToFloat()
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{this->SetOutputScalarType(VTK_FLOAT);}
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void SetOutputScalarTypeToLong()
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{this->SetOutputScalarType(VTK_LONG);}
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void SetOutputScalarTypeToUnsignedLong()
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{this->SetOutputScalarType(VTK_UNSIGNED_LONG);};
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void SetOutputScalarTypeToInt()
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{this->SetOutputScalarType(VTK_INT);}
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void SetOutputScalarTypeToUnsignedInt()
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{this->SetOutputScalarType(VTK_UNSIGNED_INT);}
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void SetOutputScalarTypeToShort()
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{this->SetOutputScalarType(VTK_SHORT);}
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void SetOutputScalarTypeToUnsignedShort()
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{this->SetOutputScalarType(VTK_UNSIGNED_SHORT);}
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void SetOutputScalarTypeToChar()
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{this->SetOutputScalarType(VTK_CHAR);}
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void SetOutputScalarTypeToUnsignedChar()
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{this->SetOutputScalarType(VTK_UNSIGNED_CHAR);}
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//@}
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//@{
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/**
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* When the ClampOverflow flag is on, the data is thresholded so that
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* the output value does not exceed the max or min of the data type.
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* Clamping is safer because otherwise you might invoke undefined
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* behavior (and may crash) if the type conversion is out of range
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* of the data type. On the other hand, clamping is slower.
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* By default, ClampOverflow is off.
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*/
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vtkSetMacro(ClampOverflow, int);
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vtkGetMacro(ClampOverflow, int);
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vtkBooleanMacro(ClampOverflow, int);
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//@}
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protected:
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vtkImageShiftScale();
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~vtkImageShiftScale();
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double Shift;
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double Scale;
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int OutputScalarType;
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int ClampOverflow;
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virtual int RequestInformation(vtkInformation*,
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vtkInformationVector**,
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vtkInformationVector*);
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virtual void ThreadedRequestData(vtkInformation*,
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vtkInformationVector**,
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vtkInformationVector*,
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vtkImageData*** inData,
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vtkImageData** outData,
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int outExt[6],
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int threadId);
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private:
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vtkImageShiftScale(const vtkImageShiftScale&) VTK_DELETE_FUNCTION;
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void operator=(const vtkImageShiftScale&) VTK_DELETE_FUNCTION;
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};
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#endif
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