JUNG節點被剪裁在可視化中

我使用JUNG創建和可視化一些圖形。看來節點的中心由佈局算法給出座標。因此，當一個節點位於窗格的邊緣時，該節點中的一些將被切斷（也可能是節點標籤）。我不確定這是JUNG問題還是JFrame/GUI問題（我對Java GUI開發不太熟悉）。我確實嘗試使圖形圖像（600x600）的最大尺寸小於窗格（800x800）的尺寸。我嘗試使用setLocation（）來居中顯示圖形，但這似乎不起作用。即使它確實將圖形居中，我也不確定是否會照顧到這個問題。JUNG節點被剪裁在可視化中

這是我的代碼。

import java.awt.Dimension; 
import javax.swing.*; 

import edu.uci.ics.jung.graph.*; 
import edu.uci.ics.jung.visualization.VisualizationImageServer; 
import edu.uci.ics.jung.algorithms.layout.SpringLayout; 
import edu.uci.ics.jung.visualization.decorators.ToStringLabeller; 
import edu.uci.ics.jung.algorithms.generators.random.EppsteinPowerLawGenerator; 
import edu.uci.ics.jung.visualization.decorators.EdgeShape; 
import org.apache.commons.collections15.Factory; 

public class Main { 

    public static void main(String[] args) { 

     // Factories required for the graph generator 
     Factory <Integer> vertexFactory = new Factory<Integer>() { 
      int vertexCount = 0; 
      public Integer create() { 
       return vertexCount++; 
      } 
     }; 

     Factory <Integer> edgeFactory = new Factory<Integer>() { 
      int edgeCount = 0; 
      public Integer create() { 
       return edgeCount++; 
      } 
     }; 

     Factory<Graph<Integer,Integer>> graphFactory = new Factory<Graph<Integer,Integer>>() { 
      public Graph<Integer,Integer> create() { 
       return new UndirectedSparseGraph<Integer, Integer>(); 
      } 
     }; 

     int numVertices = 150; 
     int numEdges = 150; 
     int numIter = 100;  
     // Create a graph using a power law generator 
     EppsteinPowerLawGenerator gen = new EppsteinPowerLawGenerator(graphFactory, vertexFactory, edgeFactory, numVertices, numEdges, numIter);  
     Graph<Integer, Integer> graph = gen.create(); 

     // Visualization of graph 
     SpringLayout layout = new SpringLayout(graph); 
     layout.setSize(new Dimension(600,600)); 
     VisualizationImageServer vs = new VisualizationImageServer(layout, new Dimension(800, 800)); 
     vs.setLocation(100,700); // seems to have no effect 
     vs.getRenderContext().setVertexLabelTransformer(new ToStringLabeller()); 
     vs.getRenderContext().setEdgeShapeTransformer(new EdgeShape.Line<Integer, Number>()); 

     JFrame frame = new JFrame(); 
     frame.add(vs); 
     frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
     frame.pack(); 
     frame.setVisible(true); 
    } 
}

來源

2012-11-05 COM

這給一個鏡頭：

float factor = 0.5; 
ScalingControl scalingControl = new CrossoverScalingControl(); 
scalingControl.scale(vs, factor, vs.getCenter());

而且，你不應該直接添加鞦韆框架，而應使用添加到其內容窗格：

frame.getContentPane().add(...)

來源

2012-11-22 22:34:55 sdasdadas

JUNG節點被剪裁在可視化中

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