/usr/include/vtk-5.8/vtkGraphHierarchicalBundle.h is in libvtk5-dev 5.8.0-5.
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 91 92 93 94 95 96 97 98 99 100 101 | /*=========================================================================
Program: Visualization Toolkit
Module: vtkGraphHierarchicalBundle.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 vtkGraphHierarchicalBundle - layout graph arcs in bundles
//
// .SECTION Description
// This algorithm creates a vtkPolyData from a vtkGraph. As opposed to
// vtkGraphToPolyData, which converts each arc into a straight line, each arc
// is converted to a polyline, following a tree structure. The filter requires
// both a vtkGraph and vtkTree as input. The tree vertices must be a
// superset of the graph vertices. A common example is when the graph vertices
// correspond to the leaves of the tree, but the internal vertices of the tree
// represent groupings of graph vertices. The algorithm matches the vertices
// using the array "PedigreeId". The user may alternately set the
// DirectMapping flag to indicate that the two structures must have directly
// corresponding offsets (i.e. node i in the graph must correspond to node i in
// the tree).
//
// The vtkGraph defines the topology of the output vtkPolyData (i.e.
// the connections between nodes) while the vtkTree defines the geometry (i.e.
// the location of nodes and arc routes). Thus, the tree must have been
// assigned vertex locations, but the graph does not need locations, in fact
// they will be ignored. The edges approximately follow the path from the
// source to target nodes in the tree. A bundling parameter controls how
// closely the edges are bundled together along the tree structure.
//
// You may follow this algorithm with vtkSplineFilter in order to make nicely
// curved edges.
// .SECTION Thanks
// This algorithm was developed in the paper
// Danny Holten. Hierarchical Edge Bundles: Visualization of Adjacency Relations
// Relations in Hierarchical Data. IEEE Transactions on Visualization and
// Computer Graphics, Vol. 12, No. 5, 2006. pp. 741-748.
#ifndef __vtkGraphHierarchicalBundle_h
#define __vtkGraphHierarchicalBundle_h
#include "vtkPolyDataAlgorithm.h"
class VTK_INFOVIS_EXPORT vtkGraphHierarchicalBundle : public vtkPolyDataAlgorithm
{
public:
static vtkGraphHierarchicalBundle *New();
vtkTypeMacro(vtkGraphHierarchicalBundle,vtkPolyDataAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// The level of arc bundling in the graph.
// A strength of 0 creates straight lines, while a strength of 1
// forces arcs to pass directly through hierarchy node points.
// The default value is 0.8.
vtkSetClampMacro(BundlingStrength, double, 0.0, 1.0);
vtkGetMacro(BundlingStrength, double);
// Description:
// If on, uses direct mapping from tree to graph vertices.
// If off, both the graph and tree must contain PedigreeId arrays
// which are used to match graph and tree vertices.
// Default is off.
vtkSetMacro(DirectMapping, bool);
vtkGetMacro(DirectMapping, bool);
vtkBooleanMacro(DirectMapping, bool);
// Description:
// Set the input type of the algorithm to vtkGraph.
int FillInputPortInformation(int port, vtkInformation* info);
protected:
vtkGraphHierarchicalBundle();
~vtkGraphHierarchicalBundle() {}
double BundlingStrength;
bool DirectMapping;
// Description:
// Convert the vtkGraph into vtkPolyData.
int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
private:
vtkGraphHierarchicalBundle(const vtkGraphHierarchicalBundle&); // Not implemented.
void operator=(const vtkGraphHierarchicalBundle&); // Not implemented.
};
#endif
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