/usr/include/vtk-6.2/vtkEdgeLayoutStrategy.h is in libvtk6-dev 6.2.0+dfsg1-10build1.
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 | /*=========================================================================
  Program:   Visualization Toolkit
  Module:    vtkEdgeLayoutStrategy.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 (c) Sandia Corporation
 See Copyright.txt or http://www.paraview.org/HTML/Copyright.html for details.
----------------------------------------------------------------------------*/
// .NAME vtkEdgeLayoutStrategy - abstract superclass for all edge layout strategies
//
// .SECTION Description
// All edge layouts should subclass from this class.  vtkEdgeLayoutStrategy
// works as a plug-in to the vtkEdgeLayout algorithm.
#ifndef vtkEdgeLayoutStrategy_h
#define vtkEdgeLayoutStrategy_h
#include "vtkInfovisLayoutModule.h" // For export macro
#include "vtkObject.h"
class vtkGraph;
class VTKINFOVISLAYOUT_EXPORT vtkEdgeLayoutStrategy : public vtkObject
{
public:
  vtkTypeMacro(vtkEdgeLayoutStrategy,vtkObject);
  void PrintSelf(ostream& os, vtkIndent indent);
  // Description:
  // Setting the graph for the layout strategy
  virtual void SetGraph(vtkGraph *graph);
  // Description:
  // This method allows the layout strategy to
  // do initialization of data structures
  // or whatever else it might want to do.
  virtual void Initialize() {}
  // Description:
  // This is the layout method where the graph that was
  // set in SetGraph() is laid out.
  virtual void Layout()=0;
  // Description:
  // Set/Get the field to use for the edge weights.
  vtkSetStringMacro(EdgeWeightArrayName);
  vtkGetStringMacro(EdgeWeightArrayName);
protected:
  vtkEdgeLayoutStrategy();
  ~vtkEdgeLayoutStrategy();
  vtkGraph *Graph;
  char     *EdgeWeightArrayName;
private:
  vtkEdgeLayoutStrategy(const vtkEdgeLayoutStrategy&);  // Not implemented.
  void operator=(const vtkEdgeLayoutStrategy&);  // Not implemented.
};
#endif
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