JFrame中的JGraph

Question

我想在我的应用程序中绘制包括顶点和边的一些图。我发现JGraph是绘制图表的好库。我浏览了一些关于它的在线资源，但找不到有关如何在Swing应用程序中嵌入JGraph的相关文章。 （在JFrame等中显示JGraph）。任何人都可以帮助我吗？

Answer 1

此代码为我工作：

// Insert the cells via the cache, so they get selected 
graph.getGraphLayoutCache().insert(cells); 

// Show in Frame 
JFrame frame = new JFrame(); 
frame.getContentPane().add(new JScrollPane(graph)); 
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
frame.pack(); 
frame.setVisible(true); 

如果你想整个样品，我可以把它上传过。

我认为代码必须是来自网站的修改样本。在这里你去：

import java.awt.Color; 
import java.awt.geom.Rectangle2D; 

import javax.swing.BorderFactory; 
import javax.swing.JFrame; 
import javax.swing.JScrollPane; 
import org.jgraph.JGraph; 
import org.jgraph.graph.DefaultEdge; 
import org.jgraph.graph.DefaultGraphCell; 
import org.jgraph.graph.DefaultGraphModel; 
import org.jgraph.graph.GraphConstants; 
import org.jgraph.graph.GraphModel; 

public class Foo { 

    public static void main(String[] args) { 

     // Construct Model and Graph 
     GraphModel model = new DefaultGraphModel(); 
     JGraph graph = new JGraph(model); 
     // Control-drag should clone selection 
     graph.setCloneable(true); 

     // Enable edit without final RETURN keystroke 
     graph.setInvokesStopCellEditing(true); 

     // When over a cell, jump to its default port (we only have one, anyway) 
     graph.setJumpToDefaultPort(true); 

     // Insert all three cells in one call, so we need an array to store them 
     DefaultGraphCell[] cells = new DefaultGraphCell[3]; 

     // Create Hello Vertex 
     cells[0] = createVertex("Hello", 20, 20, 40, 20, null, false); 

     // Create World Vertex 
     cells[1] = createVertex("World", 140, 140, 40, 20, 
       Color.ORANGE, true); 

     // Create Edge 
     DefaultEdge edge = new DefaultEdge("foo"); 
     // Fetch the ports from the new vertices, and connect them with the edge 
     edge.setSource(cells[0].getChildAt(0)); 
     edge.setTarget(cells[0].getChildAt(0)); 
     cells[2] = edge; 

     // Create Edge 
     DefaultEdge edge1 = new DefaultEdge(); 
     // Fetch the ports from the new vertices, and connect them with the edge 
//  cells[0].addPort(); 
//  cells[1].addPort(); 
//  edge1.setSource(cells[1]); 
//  edge1.setTarget(cells[0]); 
//  cells[3] = edge1; 

     // Set Arrow Style for edge 
     int arrow = GraphConstants.ARROW_CLASSIC; 
     GraphConstants.setLineEnd(edge.getAttributes(), arrow); 
     GraphConstants.setEndFill(edge.getAttributes(), true); 

     // Insert the cells via the cache, so they get selected 
     graph.getGraphLayoutCache().insert(cells); 

     // Show in Frame 
     JFrame frame = new JFrame(); 
     frame.getContentPane().add(new JScrollPane(graph)); 
     frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
     frame.pack(); 
     frame.setVisible(true); 
    } 

    public static DefaultGraphCell createVertex(String name, double x, 
      double y, double w, double h, Color bg, boolean raised) { 

     // Create vertex with the given name 
     DefaultGraphCell cell = new DefaultGraphCell(name); 

     // Set bounds 
     GraphConstants.setBounds(cell.getAttributes(), 
       new Rectangle2D.Double(x, y, w, h)); 

     // Set fill color 
     if (bg != null) { 
      GraphConstants.setGradientColor(cell.getAttributes(), bg); 
      GraphConstants.setOpaque(cell.getAttributes(), true); 
     } 

     // Set raised border 
     if (raised) { 
      GraphConstants.setBorder(cell.getAttributes(), 
        BorderFactory.createRaisedBevelBorder()); 
     } else // Set black border 
     { 
      GraphConstants.setBorderColor(cell.getAttributes(), 
        Color.black); 
     } 
     // Add a Floating Port 
     cell.addPort(); 

     return cell; 
    } 
} 

这是一个非常简单的例子。我已经完成了一些数据库数据的复杂图形，但最终与Jung2合作，这更符合我的需求。

Answer 2

也许你在找什么是G。

Answer 3

JGraph包括封装在实施例中的文件夹和com.mxgraph.examples.swingcom.mxgraph.examples.swing.editor：

 
$ ls examples/com/mxgraph/examples/swing 
ClickHandler.java GraphEditor.java SchemaEditor.java editor 
CustomCanvas.java HelloWorld.java  UserObject.java  images 
FixedPoints.java Port.java  Validation.java  resources 

$ ls examples/com/mxgraph/examples/swing/editor 
BasicGraphEditor.java  EditorMenuBar.java  JTableRenderer.java 
DefaultFileFilter.java  EditorPalette.java  SchemaEditorMenuBar.java 
EditorAboutFrame.java  EditorPopupMenu.java  SchemaEditorToolBar.java 
EditorActions.java  EditorRuler.java  SchemaGraphComponent.java 
EditorKeyboardHandler.java EditorToolBar.java  ShadowBorder.java