forked from Kitware/VTK
-
Notifications
You must be signed in to change notification settings - Fork 0
/
vtkBoostBrandesCentrality.cxx
192 lines (161 loc) · 5.87 KB
/
vtkBoostBrandesCentrality.cxx
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
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
/*=========================================================================
Program: Visualization Toolkit
Module: vtkBoostBrandesCentrality.cxx
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.
-------------------------------------------------------------------------*/
#include "vtkBoostBrandesCentrality.h"
#include "vtkCellArray.h"
#include "vtkCellData.h"
#include "vtkMath.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkObjectFactory.h"
#include "vtkPointData.h"
#include "vtkFloatArray.h"
#include "vtkDataArray.h"
#include "vtkSmartPointer.h"
#include "vtkStringArray.h"
#include "vtkBoostGraphAdapter.h"
#include "vtkDirectedGraph.h"
#include "vtkUndirectedGraph.h"
#include <boost/graph/adjacency_list.hpp>
#include <boost/graph/betweenness_centrality.hpp>
#include <boost/graph/properties.hpp>
using namespace boost;
vtkStandardNewMacro(vtkBoostBrandesCentrality);
//-----------------------------------------------------------------------------
vtkBoostBrandesCentrality::vtkBoostBrandesCentrality() :
UseEdgeWeightArray (false),
InvertEdgeWeightArray (false),
EdgeWeightArrayName (nullptr)
{
}
//-----------------------------------------------------------------------------
vtkBoostBrandesCentrality::~vtkBoostBrandesCentrality()
{
this->SetEdgeWeightArrayName(nullptr);
}
//-----------------------------------------------------------------------------
void vtkBoostBrandesCentrality::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
os << indent << "UseEdgeWeightArray: " << this->UseEdgeWeightArray << endl;
os << indent << "InvertEdgeWeightArray: " << this->InvertEdgeWeightArray
<< endl;
os << indent << "this->EdgeWeightArrayName: " <<
(this->EdgeWeightArrayName ? this->EdgeWeightArrayName : "nullptr") << endl;
}
//-----------------------------------------------------------------------------
int vtkBoostBrandesCentrality::RequestData(
vtkInformation *vtkNotUsed(request),
vtkInformationVector **inputVector,
vtkInformationVector *outputVector)
{
// get the info objects
vtkInformation *inInfo = inputVector[0]->GetInformationObject(0);
vtkInformation *outInfo = outputVector->GetInformationObject(0);
// get the input and output
vtkGraph *input = vtkGraph::SafeDownCast(
inInfo->Get(vtkDataObject::DATA_OBJECT()));
vtkGraph *output = vtkGraph::SafeDownCast(
outInfo->Get(vtkDataObject::DATA_OBJECT()));
// Send the data to output.
output->ShallowCopy(input);
// Compute betweenness centrality
// Property map for vertices
vtkFloatArray* vertexCMap = vtkFloatArray::New();
vertexCMap->SetName("centrality");
identity_property_map imap;
// Property map for edges
vtkFloatArray* edgeCMap = vtkFloatArray::New();
edgeCMap->SetName("centrality");
vtkGraphEdgePropertyMapHelper<vtkFloatArray*> helper(edgeCMap);
vtkSmartPointer<vtkDataArray> edgeWeight (0);
if(this->UseEdgeWeightArray && this->EdgeWeightArrayName)
{
if(!this->InvertEdgeWeightArray)
{
edgeWeight = input->GetEdgeData()->GetArray(this->EdgeWeightArrayName);
}
else
{
vtkDataArray* weights =
input->GetEdgeData()->GetArray(this->EdgeWeightArrayName);
if(!weights)
{
vtkErrorMacro(<<"Error: Edge weight array " << this->EdgeWeightArrayName
<< " is set but not found or not a data array.\n");
return 0;
}
edgeWeight.TakeReference(
vtkDataArray::CreateDataArray(weights->GetDataType()));
double range[2];
weights->GetRange(range);
if(weights->GetNumberOfComponents() > 1)
{
return 0;
}
for(int i=0; i < weights->GetDataSize(); ++i)
{
edgeWeight->InsertNextTuple1(range[1] - weights->GetTuple1(i));
}
}
if(!edgeWeight)
{
vtkErrorMacro(<<"Error: Edge weight array " << this->EdgeWeightArrayName
<< " is set but not found or not a data array.\n");
return 0;
}
}
// Is the graph directed or undirected
if (vtkDirectedGraph::SafeDownCast(output))
{
vtkDirectedGraph *g = vtkDirectedGraph::SafeDownCast(output);
if(edgeWeight)
{
vtkGraphEdgePropertyMapHelper<vtkDataArray*> helper2(edgeWeight);
brandes_betweenness_centrality(g,
centrality_map(vertexCMap).edge_centrality_map(
helper).vertex_index_map(imap).weight_map(helper2));
}
else
{
brandes_betweenness_centrality(g,
centrality_map(vertexCMap).edge_centrality_map(
helper).vertex_index_map(imap));
}
}
else
{
vtkUndirectedGraph *g = vtkUndirectedGraph::SafeDownCast(output);
if(edgeWeight)
{
vtkGraphEdgePropertyMapHelper<vtkDataArray*> helper2(edgeWeight);
brandes_betweenness_centrality(g,
centrality_map(vertexCMap).edge_centrality_map(
helper).vertex_index_map(imap).weight_map(helper2));
}
else
{
brandes_betweenness_centrality(g,
centrality_map(vertexCMap).edge_centrality_map(
helper).vertex_index_map(imap));
}
}
// Add the arrays to the output and dereference
output->GetVertexData()->AddArray(vertexCMap);
vertexCMap->Delete();
output->GetEdgeData()->AddArray(edgeCMap);
edgeCMap->Delete();
return 1;
}