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/*=========================================================================
Program: Visualization Toolkit
Module: $RCSfile: vtkImageDivergence.h,v $
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 vtkImageDivergence - Divergence of a vector field.
// .SECTION Description
// vtkImageDivergence takes a 3D vector field
// and creates a scalar field which
// which represents the rate of change of the vector field.
// The definition of Divergence:
// Given V = P(x,y,z), Q(x,y,z), R(x,y,z),
// Divergence = dP/dx + dQ/dy + dR/dz.
#ifndef __vtkImageDivergence_h
#define __vtkImageDivergence_h
#include "vtkThreadedImageAlgorithm.h"
class VTK_IMAGING_EXPORT vtkImageDivergence : public vtkThreadedImageAlgorithm
{
public:
static vtkImageDivergence *New();
vtkTypeRevisionMacro(vtkImageDivergence,vtkThreadedImageAlgorithm);
protected:
vtkImageDivergence();
~vtkImageDivergence() {};
virtual int RequestUpdateExtent(vtkInformation*,
vtkInformationVector**,
vtkInformationVector*);
virtual int RequestInformation (vtkInformation*,
vtkInformationVector**,
vtkInformationVector*);
void ThreadedExecute (vtkImageData *inData, vtkImageData *outData,
int ext[6], int id);
private:
vtkImageDivergence(const vtkImageDivergence&); // Not implemented.
void operator=(const vtkImageDivergence&); // Not implemented.
};
#endif
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