/usr/include/paraview/vtkPVArrayCalculator.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  | /*=========================================================================
  Program:   Visualization Toolkit
  Module:    vtkPVArrayCalculator.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 vtkPVArrayCalculator - perform mathematical operations on data 
//  in field data arrays
//
// .SECTION Description
//  vtkPVArrayCalculator performs operations on vectors or scalars in field
//  data arrays.
//  vtkArrayCalculator provides API for users to add scalar/vector fields and
//  their mapping with the input fields. We extend vtkArrayCalculator to
//  automatically add scalar/vector fields mapping using the array available in
//  the input.
// .SECTION See Also
//  vtkArrayCalculator vtkFunctionParser
#ifndef vtkPVArrayCalculator_h
#define vtkPVArrayCalculator_h
#include "vtkPVVTKExtensionsDefaultModule.h" //needed for exports
#include "vtkArrayCalculator.h"
class vtkDataObject;
class vtkDataSetAttributes;
class VTKPVVTKEXTENSIONSDEFAULT_EXPORT vtkPVArrayCalculator : public vtkArrayCalculator
{
public:
  vtkTypeMacro( vtkPVArrayCalculator,vtkArrayCalculator );
  void   PrintSelf( ostream & os, vtkIndent indent );
  static vtkPVArrayCalculator * New();
protected:
  vtkPVArrayCalculator();
  ~vtkPVArrayCalculator();
  virtual int RequestData( vtkInformation *, vtkInformationVector **, 
                           vtkInformationVector *);
  
  // Description:
  // This function updates the (scalar and vector arrays / variables) names 
  // to make them consistent with those of the upstream calculator(s). This
  // addresses the scenarios where the user modifies the name of a calculator
  // whose output is the input of a (some) subsequent calculator(s) or the user
  // changes the input of a downstream calculator. Argument inDataAttrs refers
  // to the attributes of the input dataset. This function should be called by 
  // RequestData() only.
  void    UpdateArrayAndVariableNames( vtkDataObject        * theInputObj, 
                                       vtkDataSetAttributes * inDataAttrs );
private:
  vtkPVArrayCalculator( const vtkPVArrayCalculator & ); // Not implemented.
  void operator = ( const vtkPVArrayCalculator & );     // Not implemented.
};
#endif
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