/usr/include/paraview/vtkXMLPolyDataWriter.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 85 86 87 88 89 90  | /*=========================================================================
  Program:   Visualization Toolkit
  Module:    vtkXMLPolyDataWriter.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 vtkXMLPolyDataWriter - Write VTK XML PolyData files.
// .SECTION Description
// vtkXMLPolyDataWriter writes the VTK XML PolyData file format.  One
// polygonal data input can be written into one file in any number of
// streamed pieces (if supported by the rest of the pipeline).  The
// standard extension for this writer's file format is "vtp".  This
// writer is also used to write a single piece of the parallel file
// format.
// .SECTION See Also
// vtkXMLPPolyDataWriter
#ifndef vtkXMLPolyDataWriter_h
#define vtkXMLPolyDataWriter_h
#include "vtkIOXMLModule.h" // For export macro
#include "vtkXMLUnstructuredDataWriter.h"
class vtkPolyData;
class VTKIOXML_EXPORT vtkXMLPolyDataWriter : public vtkXMLUnstructuredDataWriter
{
public:
  vtkTypeMacro(vtkXMLPolyDataWriter,vtkXMLUnstructuredDataWriter);
  void PrintSelf(ostream& os, vtkIndent indent);
  static vtkXMLPolyDataWriter* New();
  //BTX
  // Description:
  // Get/Set the writer's input.
  vtkPolyData* GetInput();
  //ETX
  // Description:
  // Get the default file extension for files written by this writer.
  const char* GetDefaultFileExtension();
protected:
  vtkXMLPolyDataWriter();
  ~vtkXMLPolyDataWriter();
  // see algorithm for more info
  virtual int FillInputPortInformation(int port, vtkInformation* info);
  const char* GetDataSetName();
  virtual void AllocatePositionArrays();
  virtual void DeletePositionArrays();
  void WriteInlinePieceAttributes();
  void WriteInlinePiece(vtkIndent indent);
  void WriteAppendedPieceAttributes(int index);
  void WriteAppendedPiece(int index, vtkIndent indent);
  void WriteAppendedPieceData(int index);
  virtual vtkIdType GetNumberOfInputCells();
  void CalculateSuperclassFraction(float* fractions);
  // Positions of attributes for each piece.
  unsigned long* NumberOfVertsPositions;
  unsigned long* NumberOfLinesPositions;
  unsigned long* NumberOfStripsPositions;
  unsigned long* NumberOfPolysPositions;
  OffsetsManagerArray *VertsOM;
  OffsetsManagerArray *LinesOM;
  OffsetsManagerArray *StripsOM;
  OffsetsManagerArray *PolysOM;
private:
  vtkXMLPolyDataWriter(const vtkXMLPolyDataWriter&);  // Not implemented.
  void operator=(const vtkXMLPolyDataWriter&);  // Not implemented.
};
#endif
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