JGraphX中的無向圖

Question

我嘗試在JGraphx中顯示圖。 一切都很好，只要我使用有向圖， ，但是當我嘗試顯示一個無向圖，其顯示 與方向。

該代碼來自jgrapht的演示。

 

package org.jgrapht.demo; 

import com.mxgraph.layout.*; 
import com.mxgraph.swing.*; 

import java.awt.*; 
import java.nio.file.FileSystem; 

import javax.swing.*; 

import org.jgrapht.*; 
import org.jgrapht.ext.*; 
import org.jgrapht.graph.*; 


/** 
* A demo applet that shows how to use JGraphX to visualize JGraphT graphs. 
* Applet based on JGraphAdapterDemo. 
* 
* @since July 9, 2013 
*/ 
public class JGraphXAdapterDemo 
    extends JApplet 
{ 


private static final long serialVersionUID = 2202072534703043194L; 
private static final Dimension DEFAULT_SIZE = new Dimension(530, 320); 



private JGraphXAdapter<String, DefaultEdge> jgxAdapter; 



/** 
* An alternative starting point for this demo, to also allow running this 
* applet as an application. 
* 
* @param args ignored. 
*/ 
public static void main(String [] args) 
{ 
    JGraphAdapterDemo applet = new JGraphAdapterDemo(); 
    applet.init(); 

    JFrame frame = new JFrame(); 
    frame.getContentPane().add(applet); 
    frame.setTitle("JGraphT Adapter to JGraph Demo"); 
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
    frame.pack(); 
    frame.setVisible(true); 
} 

/** 
* {@inheritDoc} 
*/ 
public void init() 
{ 
    // create a JGraphT graph 
    ListenableUndirectedGraph<String, DefaultEdge> g = 
     new ListenableUndirectedGraph<String, DefaultEdge>(
      DefaultEdge.class); 

    // create a visualization using JGraph, via an adapter 
    jgxAdapter = new JGraphXAdapter<String, DefaultEdge>(g); 

    getContentPane().add(new mxGraphComponent(jgxAdapter)); 
    resize(DEFAULT_SIZE); 

    String v1 = "v1"; 
    String v2 = "v2"; 
    String v3 = "v3"; 
    String v4 = "v4"; 

    // add some sample data (graph manipulated via JGraphX) 
    g.addVertex(v1); 
    g.addVertex(v2); 
    g.addVertex(v3); 
    g.addVertex(v4); 

    g.addEdge(v1, v2); 
    g.addEdge(v2, v3); 
    g.addEdge(v3, v1); 
    g.addEdge(v4, v3); 

    // positioning via jgraphx layouts 
    mxCircleLayout layout = new mxCircleLayout(jgxAdapter); 
    layout.execute(jgxAdapter.getDefaultParent()); 

    // that's all there is to it!... 

    } 
} 

是否有可能表現出來的無向？

感謝

託本

PS：對不起，我的英文不好

Answer 1

您可以設置邊緣的風格在mxGraphComponent到NONE：

mxGraphComponent graphComponent = new mxGraphComponent(jgxAdapter); 
mxGraphModel graphModel = (mxGraphModel)graphComponent.getGraph().getModel(); 
Collection<Object> cells = graphModel.getCells().values(); 
mxUtils.setCellStyles(graphComponent.getGraph().getModel(), 
    cells.toArray(), mxConstants.STYLE_ENDARROW, mxConstants.NONE); 
//instead of getContentPane().add(new mxGraphComponent(jgxAdapter)); 
getContentPane().add(graphComponent); 

Answer 2

別人有同樣的問題請看這個代碼

import com.mxgraph.layout.mxCircleLayout; 
import com.mxgraph.model.mxGraphModel; 
import com.mxgraph.swing.mxGraphComponent; 
import com.mxgraph.util.mxConstants; 
import com.mxgraph.util.mxUtils; 
import java.util.Collection; 
import javax.swing.JFrame; 

import org.jgrapht.UndirectedGraph; 
import org.jgrapht.graph.DefaultEdge; 
import org.jgrapht.graph.SimpleGraph; 

public class GraphTest extends JFrame { 

    public GraphTest(){ 

     JGraphXAdapter<String, DefaultEdge> jgxAdapter; 
     UndirectedGraph<String, DefaultEdge> graph = 
     new SimpleGraph<String, DefaultEdge>(DefaultEdge.class); 


    graph.addVertex("v1"); 
    graph.addVertex("v2"); 
    graph.addVertex("v3"); 
    graph.addVertex("v4"); 

    graph.addEdge("v1", "v2"); 
    graph.addEdge("v2","v3"); 
    graph.addEdge("v3", "v4"); 
    graph.addEdge("v4", "v1"); 


    jgxAdapter = new JGraphXAdapter <String, DefaultEdge>(graph); 
    mxGraphComponent graphComponent = new mxGraphComponent(jgxAdapter); 
    mxGraphModel graphModel =  (mxGraphModel)graphComponent.getGraph().getModel(); 
    Collection<Object> cells = graphModel.getCells().values(); 
    mxUtils.setCellStyles(graphComponent.getGraph().getModel(), 
    cells.toArray(), mxConstants.STYLE_ENDARROW, mxConstants.NONE); 
    getContentPane().add(graphComponent); 

    mxCircleLayout layout = new mxCircleLayout(jgxAdapter); 
    layout.execute(jgxAdapter.getDefaultParent()); 

} 
    public static void main(String[] args) { 

    GraphTest g = new GraphTest(); 

      g.setTitle(" undirected graph "); 
      g.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
      g.pack(); 
      g.setVisible(true); 
    } 

}