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
|
/**
*
* This file is part of Tulip (www.tulip-software.org)
*
* Authors: David Auber and the Tulip development Team
* from LaBRI, University of Bordeaux
*
* Tulip is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation, either version 3
* of the License, or (at your option) any later version.
*
* Tulip is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*
*/
#include <ctime>
#include <tulip/TulipPluginHeaders.h>
using namespace std;
using namespace tlp;
namespace {
const char * paramHelp[] = {
// minsize
HTML_HELP_OPEN() \
HTML_HELP_DEF( "type", "unsigned int" ) \
HTML_HELP_DEF( "default", "100" ) \
HTML_HELP_BODY() \
"Minimal number of nodes in the tree." \
HTML_HELP_CLOSE(),
// maxsize
HTML_HELP_OPEN() \
HTML_HELP_DEF( "type", "unsigned int" ) \
HTML_HELP_DEF( "default", "1000" ) \
HTML_HELP_BODY() \
"Maximal number of nodes in the tree." \
HTML_HELP_CLOSE(),
// tree layout
HTML_HELP_OPEN() \
HTML_HELP_DEF( "type", "bool" ) \
HTML_HELP_DEF( "default", "false" ) \
HTML_HELP_BODY() \
"If true, the generated tree is drawn with a tree layout algorithm." \
HTML_HELP_CLOSE(),
};
}
/** \addtogroup import */
/// Random Tree - Import of a random uniform binary tree
/** This plugin enables to create a random tree
*
* User can specify the minimal/maximal numbers of nodes used to build of the tree.
*/
class RandomTree:public ImportModule {
bool buildNode(node n, unsigned int sizeM) {
if (graph->numberOfNodes()>=sizeM+2) return false;
bool result=true;
int randNumber=rand();
if (randNumber>RAND_MAX/2) {
node n1,n2;
n1=graph->addNode();
n2=graph->addNode();
graph->addEdge(n,n1);
graph->addEdge(n,n2);
result= result && buildNode(n1,sizeM);
result= result && buildNode(n2,sizeM);
}
return result;
}
public:
PLUGININFORMATION("Uniform Random Binary Tree","Auber","16/02/2001","Imports a new randomly generated uniform binary tree.","1.1","Graph")
RandomTree(tlp::PluginContext* context):ImportModule(context) {
addInParameter<unsigned int>("Minimum size",paramHelp[0],"100");
addInParameter<unsigned int>("Maximum size",paramHelp[1],"1000");
addInParameter<bool>("tree layout",paramHelp[2],"false");
addDependency("Tree Leaf", "1.0");
}
bool importGraph() {
// initialize a random sequence according the given seed
tlp::initRandomSequence();
unsigned int minSize = 100;
unsigned int maxSize = 1000;
bool needLayout = false;
if (dataSet!=NULL) {
if(dataSet->exist("Minimum size"))
dataSet->get("Minimum size", minSize);
else
dataSet->get("minsize", minSize); //keep old name for backward compatibility
if(dataSet->exist("Maximum size"))
dataSet->get("Maximum size", maxSize);
else
dataSet->get("maxsize", maxSize); //keep old name for backward compatibility
dataSet->get("tree layout", needLayout);
}
if (maxSize < 1) {
if (pluginProgress)
pluginProgress->setError("Error: maximum size must be a strictly positive integer");
return false;
}
if (maxSize < minSize) {
if (pluginProgress)
pluginProgress->setError("Error: maximum size must be greater than minimum size");
return false;
}
bool ok=true;
int i=0;
while (ok) {
if (pluginProgress->progress(i%100,100)!=TLP_CONTINUE) break;
++i;
graph->clear();
node n=graph->addNode();
ok = !buildNode(n,maxSize);
if (graph->numberOfNodes()<minSize-2) ok=true;
}
if (pluginProgress->progress(100,100)==TLP_CANCEL)
return false;
if (needLayout) {
// apply Tree Leaf
DataSet dSet;
string errMsg;
LayoutProperty *layout = graph->getProperty<LayoutProperty>("viewLayout");
return graph->applyPropertyAlgorithm("Tree Leaf", layout, errMsg,
pluginProgress, &dSet);
}
return true;
}
};
PLUGIN(RandomTree)
|
