Java 如何使用JUNG显示树木布局,但间距和结构更整齐
我试图使用JUNG在树布局中布置一些节点,但希望以整齐的间距布置它们,类似于- 我从下载了JUNG项目,并找到了edu.uci.ics.JUNG.samples.TreeLayoutDemo和edu.uci.ics.JUNG.samples.GraphFromGraphMLDemo的示例,但仍在努力实现我的目标 GraphML文件内容如下所示-Java 如何使用JUNG显示树木布局,但间距和结构更整齐,java,graph,graph-visualization,graphml,jung2,Java,Graph,Graph Visualization,Graphml,Jung2,我试图使用JUNG在树布局中布置一些节点,但希望以整齐的间距布置它们,类似于- 我从下载了JUNG项目,并找到了edu.uci.ics.JUNG.samples.TreeLayoutDemo和edu.uci.ics.JUNG.samples.GraphFromGraphMLDemo的示例,但仍在努力实现我的目标 GraphML文件内容如下所示- <?xml version="1.0" encoding="UTF-8"?> <graphml xmlns="http://grap
<?xml version="1.0" encoding="UTF-8"?>
<graphml xmlns="http://graphml.graphdrawing.org/xmlns" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://graphml.graphdrawing.org/xmlns http://graphml.graphdrawing.org/xmlns/1.0/graphml.xsd">
<graph id="G" edgedefault="undirected">
<node id="n0" />
<node id="n1" />
<node id="n2" />
<node id="n3" />
<node id="n4" />
<node id="n5" />
<node id="n6" />
<node id="n7" />
<node id="n8" />
<node id="n9" />
<node id="n10" />
<edge source="n0" target="n2" />
<edge source="n1" target="n2" />
<edge source="n2" target="n3" />
<edge source="n3" target="n5" />
<edge source="n3" target="n4" />
<edge source="n4" target="n6" />
<edge source="n6" target="n5" />
<edge source="n5" target="n7" />
<edge source="n6" target="n8" />
<edge source="n8" target="n7" />
<edge source="n8" target="n9" />
<edge source="n8" target="n10" />
</graph>
</graphml>
我已经能够生成一个树布局
private Supplier<MutableNetwork<Number, Number>> graphFactory;
private Supplier<Number> nodeFactory;
private Supplier<Number> edgeFactory;
private GraphMLReader<MutableNetwork<Number, Number>, Number, Number> gmlreader;
private void initializeTools() throws ParserConfigurationException, SAXException {
graphFactory =
() -> NetworkBuilder.directed()
.allowsSelfLoops(true)
.allowsParallelEdges(true)
.build();
nodeFactory =
new Supplier<Number>() {
int n = 0;
public Number get() {
return n++;
}
};
edgeFactory =
new Supplier<Number>() {
int n = 0;
public Number get() {
return n++;
}
};
gmlreader =
new GraphMLReader<>(nodeFactory, edgeFactory);
}
private MutableNetwork<Number, Number> getGraph() {
MutableNetwork<Number, Number> graph = null;
String xml =
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
+ "<graphml xmlns=\"http://graphml.graphdrawing.org/xmlns\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" "
+ "xsi:schemaLocation=\"http://graphml.graphdrawing.org/xmlns http://graphml.graphdrawing.org/xmlns/1.0/graphml.xsd\">"
+ " <graph id=\"G\" edgedefault=\"undirected\">\n" +
" <node id=\"n0\" />\n" +
" <node id=\"n1\" />\n" +
" <node id=\"n2\" />\n" +
" <node id=\"n3\" />\n" +
" <node id=\"n4\" />\n" +
" <node id=\"n5\" />\n" +
" <node id=\"n6\" />\n" +
" <node id=\"n7\" />\n" +
" <node id=\"n8\" />\n" +
" <node id=\"n9\" />\n" +
" <node id=\"n10\" />\n" +
" <edge source=\"n0\" target=\"n2\" />\n" +
" <edge source=\"n1\" target=\"n2\" />\n" +
" <edge source=\"n2\" target=\"n3\" />\n" +
" <edge source=\"n3\" target=\"n5\" />\n" +
" <edge source=\"n3\" target=\"n4\" />\n" +
" <edge source=\"n4\" target=\"n6\" />\n" +
" <edge source=\"n6\" target=\"n5\" />\n" +
" <edge source=\"n5\" target=\"n7\" />\n" +
" <edge source=\"n6\" target=\"n8\" />\n" +
" <edge source=\"n8\" target=\"n7\" />\n" +
" <edge source=\"n8\" target=\"n9\" />\n" +
" <edge source=\"n8\" target=\"n10\" />\n" +
" </graph>" +
"</graphml>";
BufferedWriter writer = null;
try {
writer = new BufferedWriter(new FileWriter("temp.graphml"));
writer.write(xml);
writer.close();
graph = graphFactory.get();
gmlreader.load("temp.graphml", graph);
} catch (Exception e) {
e.printStackTrace();
}
return graph;
}
私人供应商graphFactory;
私人供应商节点工厂;
私人供应商边缘工厂;
专用图形阅读器gmlreader;
private void initializeTools()引发ParserConfiguration异常,SAXException{
石墨厂=
()->NetworkBuilder.directed()
.AllowSelfLoops(真)
.allowsParallelEdges(真)
.build();
节点特性=
新供应商(){
int n=0;
公共号码get(){
返回n++;
}
};
边缘学=
新供应商(){
int n=0;
公共号码get(){
返回n++;
}
};
gmlreader=
新GraphMLReader(nodeFactory、edgeFactory);
}
私有可变网络getGraph(){
可变网络图=空;
字符串xml=
""
+ ""
+“\n”+
“\n”+
“\n”+
“\n”+
“\n”+
“\n”+
“\n”+
“\n”+
“\n”+
“\n”+
“\n”+
“\n”+
“\n”+
“\n”+
“\n”+
“\n”+
“\n”+
“\n”+
“\n”+
“\n”+
“\n”+
“\n”+
“\n”+
“\n”+
" " +
"";
BufferedWriter=null;
试一试{
writer=newbufferedwriter(newfilewriter(“temp.graphml”);
write.write(xml);
writer.close();
graph=graphFactory.get();
gmlreader.load(“温度图”,图形);
}捕获(例外e){
e、 printStackTrace();
}
返回图;
}
用作-
initializeTools();
final MutableNetwork<Number, Number> graph = getGraph();
// create a simple graph for the demo
TreeLayoutAlgorithm<Number> layoutAlgorithm = new TreeLayoutAlgorithm<>();
vv = new VisualizationViewer<>(graph, layoutAlgorithm, new Dimension(800, 800));
initializeTools();
最终可变网络图=getGraph();
//为演示创建一个简单的图形
TreeLayoutAlgorithm layoutAlgorithm=新的TreeLayoutAlgorithm();
vv=新的VisualizationViewer(图形、布局算法、新维度(800800));
我无法让它完全展示我的期望或努力。这就是它的外观-这是一个特定“整洁”树布局的实现:
您可能会将它重新安装到您正在使用的jung版本中。JungraphtT工作得非常好!-
谢谢哇!我对荣格拉夫特的形象化一无所知。我要去看看,很高兴能奏效。您可以使用edgePredicate设置来防止J1根子树被节点I2“窃取”。GraphView遍历遵循传出边,但如果添加edgePredicate(获取传出边)之类的内容,除非边目标有多条传入边,并且其中一条传入边的源是树的根”。对于这样的图,您可能也喜欢SugiyaMalayout算法。