/usr/include/vtk-6.3/vtkImageGradient.h is in libvtk6-dev 6.3.0+dfsg1-11build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 | /*=========================================================================
Program: Visualization Toolkit
Module: vtkImageGradient.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 vtkImageGradient - Computes the gradient vector.
// .SECTION Description
// vtkImageGradient computes the gradient vector of an image. The
// vector results are stored as scalar components. The Dimensionality
// determines whether to perform a 2d or 3d gradient. The default is
// two dimensional XY gradient. OutputScalarType is always
// double. Gradient is computed using central differences.
#ifndef vtkImageGradient_h
#define vtkImageGradient_h
#include "vtkImagingGeneralModule.h" // For export macro
#include "vtkThreadedImageAlgorithm.h"
class VTKIMAGINGGENERAL_EXPORT vtkImageGradient : public vtkThreadedImageAlgorithm
{
public:
static vtkImageGradient *New();
vtkTypeMacro(vtkImageGradient,vtkThreadedImageAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Determines how the input is interpreted (set of 2d slices ...)
vtkSetClampMacro(Dimensionality,int,2,3);
vtkGetMacro(Dimensionality,int);
// Description:
// Get/Set whether to handle boundaries. If enabled, boundary
// pixels are treated as duplicated so that central differencing
// works for the boundary pixels. If disabled, the output whole
// extent of the image is reduced by one pixel.
vtkSetMacro(HandleBoundaries, int);
vtkGetMacro(HandleBoundaries, int);
vtkBooleanMacro(HandleBoundaries, int);
protected:
vtkImageGradient();
~vtkImageGradient() {}
int HandleBoundaries;
int Dimensionality;
virtual int RequestInformation (vtkInformation*,
vtkInformationVector**,
vtkInformationVector*);
virtual int RequestUpdateExtent(vtkInformation*,
vtkInformationVector**,
vtkInformationVector*);
virtual int RequestData(vtkInformation*,
vtkInformationVector**,
vtkInformationVector*);
void ThreadedRequestData(vtkInformation*,
vtkInformationVector**,
vtkInformationVector*,
vtkImageData*** inData,
vtkImageData** outData,
int outExt[6],
int threadId);
private:
vtkImageGradient(const vtkImageGradient&); // Not implemented.
void operator=(const vtkImageGradient&); // Not implemented.
};
#endif
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