/usr/include/paraview/vtkDirectedGraph.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  | /*=========================================================================
  Program:   Visualization Toolkit
  Module:    vtkDirectedGraph.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.
=========================================================================*/
/*-------------------------------------------------------------------------
  Copyright 2008 Sandia Corporation.
  Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
  the U.S. Government retains certain rights in this software.
-------------------------------------------------------------------------*/
// .NAME vtkDirectedGraph - A directed graph.
//
// .SECTION Description
// vtkDirectedGraph is a collection of vertices along with a collection of
// directed edges (edges that have a source and target). ShallowCopy()
// and DeepCopy() (and CheckedShallowCopy(), CheckedDeepCopy())
// accept instances of vtkTree and vtkMutableDirectedGraph.
//
// vtkDirectedGraph is read-only. To create an undirected graph,
// use an instance of vtkMutableDirectedGraph, then you may set the
// structure to a vtkDirectedGraph using ShallowCopy().
//
// .SECTION See Also
// vtkGraph vtkMutableDirectedGraph
#ifndef vtkDirectedGraph_h
#define vtkDirectedGraph_h
#include "vtkCommonDataModelModule.h" // For export macro
#include "vtkGraph.h"
class VTKCOMMONDATAMODEL_EXPORT vtkDirectedGraph : public vtkGraph
{
public:
  static vtkDirectedGraph *New();
  vtkTypeMacro(vtkDirectedGraph, vtkGraph);
  void PrintSelf(ostream& os, vtkIndent indent);
  // Description:
  // Return what type of dataset this is.
  virtual int GetDataObjectType() {return VTK_DIRECTED_GRAPH;}
  //BTX
  // Description:
  // Retrieve a graph from an information vector.
  static vtkDirectedGraph *GetData(vtkInformation *info);
  static vtkDirectedGraph *GetData(vtkInformationVector *v, int i=0);
  //ETX
  // Description:
  // Check the storage, and accept it if it is a valid
  // undirected graph. This is public to allow
  // the ToDirected/UndirectedGraph to work.
  virtual bool IsStructureValid(vtkGraph *g);
protected:
  vtkDirectedGraph();
  ~vtkDirectedGraph();
private:
  vtkDirectedGraph(const vtkDirectedGraph&);  // Not implemented.
  void operator=(const vtkDirectedGraph&);  // Not implemented.
};
#endif
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