/usr/include/paraview/vtkEllipsoidTensorProbeRepresentation.h is in paraview-dev 5.0.1+dfsg1-4.
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  | /*=========================================================================
  Program:   Visualization Toolkit
  Module:    vtkEllipsoidTensorProbeRepresentation.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 vtkEllipsoidTensorProbeRepresentation - A concrete implementation of vtkTensorProbeRepresentation that renders tensors as ellipoids.
// .SECTION Description
// vtkEllipsoidTensorProbeRepresentation is a concrete implementation of
// vtkTensorProbeRepresentation. It renders tensors as ellipsoids. Locations
// between two points when probed have the tensors linearly interpolated
// from the neighboring locations on the polyline.
//
// .SECTION See Also
// vtkTensorProbeWidget
#ifndef vtkEllipsoidTensorProbeRepresentation_h
#define vtkEllipsoidTensorProbeRepresentation_h
#include "vtkInteractionWidgetsModule.h" // For export macro
#include "vtkTensorProbeRepresentation.h"
class vtkCellPicker;
class vtkTensorGlyph;
class vtkPolyDataNormals;
class VTKINTERACTIONWIDGETS_EXPORT vtkEllipsoidTensorProbeRepresentation :
               public vtkTensorProbeRepresentation
{
public:
  static vtkEllipsoidTensorProbeRepresentation *New();
  // Description:
  // Standard methods for instances of this class.
  vtkTypeMacro(vtkEllipsoidTensorProbeRepresentation,
                                vtkTensorProbeRepresentation);
  void PrintSelf(ostream& os, vtkIndent indent);
  virtual void BuildRepresentation();
  virtual int RenderOpaqueGeometry(vtkViewport *);
  // Description:
  // Can we pick the tensor glyph at the current cursor pos
  virtual int SelectProbe( int pos[2] );
  // Description:
  // See vtkProp for details.
  virtual void GetActors(vtkPropCollection *);
  virtual void ReleaseGraphicsResources(vtkWindow *);
protected:
  vtkEllipsoidTensorProbeRepresentation();
  ~vtkEllipsoidTensorProbeRepresentation();
  // Get the interpolated tensor at the current position
  void EvaluateTensor( double t[9] );
  // Register internal Pickers within PickingManager
  virtual void RegisterPickers();
  vtkActor           * EllipsoidActor;
  vtkPolyDataMapper  * EllipsoidMapper;
  vtkPolyData        * TensorSource;
  vtkTensorGlyph     * TensorGlypher;
  vtkCellPicker      * CellPicker;
  vtkPolyDataNormals * PolyDataNormals;
private:
  vtkEllipsoidTensorProbeRepresentation(const
      vtkEllipsoidTensorProbeRepresentation&);  //Not implemented
  void operator=(const
      vtkEllipsoidTensorProbeRepresentation&);  //Not implemented
};
#endif
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