/usr/include/paraview/vtkUnstructuredGridVolumeRayCastFunction.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  | /*=========================================================================
  Program:   Visualization Toolkit
  Module:    vtkUnstructuredGridVolumeRayCastFunction.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 vtkUnstructuredGridVolumeRayCastFunction - a superclass for ray casting functions
// .SECTION Description
// vtkUnstructuredGridVolumeRayCastFunction is a superclass for ray casting functions that
// can be used within a vtkUnstructuredGridVolumeRayCastMapper.
// .SECTION See Also
// vtkUnstructuredGridVolumeRayCastMapper vtkUnstructuredGridVolumeRayIntegrator
#ifndef vtkUnstructuredGridVolumeRayCastFunction_h
#define vtkUnstructuredGridVolumeRayCastFunction_h
#include "vtkRenderingVolumeModule.h" // For export macro
#include "vtkObject.h"
class vtkRenderer;
class vtkVolume;
class vtkUnstructuredGridVolumeRayCastIterator;
class VTKRENDERINGVOLUME_EXPORT vtkUnstructuredGridVolumeRayCastFunction : public vtkObject
{
public:
  vtkTypeMacro(vtkUnstructuredGridVolumeRayCastFunction,vtkObject);
  virtual void PrintSelf(ostream& os, vtkIndent indent);
//BTX
  virtual void Initialize( vtkRenderer *ren, vtkVolume   *vol )=0;
  virtual void Finalize( )=0;
 // Description:
  // Returns a new object that will iterate over all the intersections of a
  // ray with the cells of the input.  The calling code is responsible for
  // deleting the returned object.
  virtual vtkUnstructuredGridVolumeRayCastIterator *NewIterator() = 0;
//ETX
protected:
  vtkUnstructuredGridVolumeRayCastFunction() {}
  ~vtkUnstructuredGridVolumeRayCastFunction() {}
private:
  vtkUnstructuredGridVolumeRayCastFunction(const vtkUnstructuredGridVolumeRayCastFunction&);  // Not implemented.
  void operator=(const vtkUnstructuredGridVolumeRayCastFunction&);  // Not implemented.
};
#endif
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