vtkImageWeightedSum.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkImageWeightedSum.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 vtkImageWeightedSum_h
#define vtkImageWeightedSum_h
 
#include "vtkImagingMathModule.h" // For export macro
#include "vtkThreadedImageAlgorithm.h"
 
class vtkDoubleArray;
class VTKIMAGINGMATH_EXPORT vtkImageWeightedSum : public vtkThreadedImageAlgorithm
{
public:
  static vtkImageWeightedSum* New();
  vtkTypeMacro(vtkImageWeightedSum, vtkThreadedImageAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
 
  virtual void SetWeights(vtkDoubleArray*);
  vtkGetObjectMacro(Weights, vtkDoubleArray);
 
  virtual void SetWeight(vtkIdType id, double weight);
 
 
  vtkGetMacro(NormalizeByWeight, vtkTypeBool);
  vtkSetClampMacro(NormalizeByWeight, vtkTypeBool, 0, 1);
  vtkBooleanMacro(NormalizeByWeight, vtkTypeBool);
 
  double CalculateTotalWeight();
 
protected:
  vtkImageWeightedSum();
  ~vtkImageWeightedSum() override;
 
  // Array to hold all the weights
  vtkDoubleArray* Weights;
 
  // Boolean flag to divide by sum or not
  vtkTypeBool NormalizeByWeight;
 
  int RequestInformation(vtkInformation* vtkNotUsed(request),
    vtkInformationVector** vtkNotUsed(inputVector), vtkInformationVector* outputVector) override;
 
  void ThreadedRequestData(vtkInformation* request, vtkInformationVector** inputVector,
    vtkInformationVector* outputVector, vtkImageData*** inData, vtkImageData** outData, int ext[6],
    int id) override;
  int FillInputPortInformation(int i, vtkInformation* info) override;
 
private:
  vtkImageWeightedSum(const vtkImageWeightedSum&) = delete;
  void operator=(const vtkImageWeightedSum&) = delete;
};
 
#endif