This file is indexed.

/usr/include/vtk-5.8/vtkMassProperties.h is in libvtk5-dev 5.8.0-5.

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
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkMassProperties.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 vtkMassProperties - estimate volume, area, shape index of triangle mesh
// .SECTION Description
// vtkMassProperties estimates the volume, the surface area, and the
// normalized shape index of a triangle mesh.  The algorithm
// implemented here is based on the discrete form of the divergence
// theorem.  The general assumption here is that the model is of
// closed surface.  For more details see the following reference
// (Alyassin A.M. et al, "Evaluation of new algorithms for the
// interactive measurement of surface area and volume", Med Phys 21(6)
// 1994.).

// .SECTION Caveats
// Currently only triangles are processed. Use vtkTriangleFilter to
// convert any strips or polygons to triangles.

// .SECTION See Also
// vtkTriangleFilter

#ifndef __vtkMassProperties_h
#define __vtkMassProperties_h

#include "vtkPolyDataAlgorithm.h"

class VTK_GRAPHICS_EXPORT vtkMassProperties : public vtkPolyDataAlgorithm
{
public:
  // Description:
  // Constructs with initial values of zero.
  static vtkMassProperties *New();

  vtkTypeMacro(vtkMassProperties,vtkPolyDataAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent);

  // Description:
  // Compute and return the volume.
  double GetVolume() {this->Update(); return this->Volume;}

  // Description:
  // Compute and return the projected volume.
  // Typically you should compare this volume to the value returned by GetVolume
  // if you get an error (GetVolume()-GetVolumeProjected())*10000 that is greater
  // than GetVolume() this should identify a problem:
  // * Either the polydata is not closed
  // * Or the polydata contains triangle that are flipped
  double GetVolumeProjected() {this->Update(); return this->VolumeProjected;}

  // Description:
  // Compute and return the volume projected on to each axis aligned plane.
  double GetVolumeX() {this->Update(); return this->VolumeX;}
  double GetVolumeY() {this->Update(); return this->VolumeY;}
  double GetVolumeZ() {this->Update(); return this->VolumeZ;}

  // Description:
  // Compute and return the weighting factors for the maximum unit
  // normal component (MUNC).
  double GetKx() {this->Update(); return this->Kx;}
  double GetKy() {this->Update(); return this->Ky;}
  double GetKz() {this->Update(); return this->Kz;}

  // Description:
  // Compute and return the area.
  double GetSurfaceArea() {this->Update(); return this->SurfaceArea;}

  // Description:
  // Compute and return the min cell area.
  double GetMinCellArea() {this->Update(); return this->MinCellArea;}

  // Description:
  // Compute and return the max cell area.
  double GetMaxCellArea() {this->Update(); return this->MaxCellArea;}

  // Description:
  // Compute and return the normalized shape index. This characterizes the
  // deviation of the shape of an object from a sphere. A sphere's NSI
  // is one. This number is always >= 1.0.
  double GetNormalizedShapeIndex()
    {this->Update(); return this->NormalizedShapeIndex;}

protected:
  vtkMassProperties();
  ~vtkMassProperties();

  virtual int RequestData(vtkInformation* request,
                          vtkInformationVector** inputVector,
                          vtkInformationVector* outputVector);

  double  SurfaceArea;
  double  MinCellArea;
  double  MaxCellArea;
  double  Volume;
  double  VolumeProjected; // == Projected area of triangles * average z values
  double  VolumeX;
  double  VolumeY;
  double  VolumeZ;
  double  Kx;
  double  Ky;
  double  Kz;
  double  NormalizedShapeIndex;

private:
  vtkMassProperties(const vtkMassProperties&);  // Not implemented.
  void operator=(const vtkMassProperties&);  // Not implemented.
};

#endif