JFreeChart標籤寬度

Question

我是JFreeChart的新手。

附上我的圖表。正如你所看到的，標籤被截斷。如何指定標籤的寬度以避免截斷（我有足夠的房地產來適應他們）？

我當前的代碼如下：

DefaultCategoryDataset dataset = new DefaultCategoryDataset(); 

    dataset.setValue(24, "Major", "Mathematics"); 
    dataset.setValue(20, "Major", "Philosophy"); 
    dataset.setValue(18, "Major", "Chemical Engineering"); 
    dataset.setValue(15, "Major", "Sociology"); 
    dataset.setValue(14, "Major", "Stuff"); 
    dataset.setValue(13, "Major", "A Program"); 
    dataset.setValue(13, "Major", "Bleg"); 

    JFreeChart chart = ChartFactory.createBarChart(" ", "Major", "Score", dataset, PlotOrientation.HORIZONTAL, 
      false, true, false); 
    CategoryPlot plot = chart.getCategoryPlot(); 

    Font font1 = new Font("Dialog", Font.PLAIN, 25); 
    Font font2 = new Font("Dialog", Font.PLAIN, 15); 
    Font font3 = new Font("Dialog", Font.PLAIN, 25); 

    plot.getDomainAxis().setLabelFont(font3); 
    plot.getRangeAxis().setLabelFont(font3); 

    CategoryAxis axisDomain = plot.getDomainAxis(); 
    ValueAxis axisRange = plot.getRangeAxis(); 

    axisDomain.setTickLabelFont(font1); 

    axisRange.setTickLabelFont(font2); 
    chart.setAntiAlias(true); 

Answer 1

其中方法建議here，下面的例子將覆蓋getPreferredSize()。

import java.awt.Dimension; 
import java.awt.EventQueue; 
import java.awt.Font; 
import javax.swing.JFrame; 
import org.jfree.chart.ChartFactory; 
import org.jfree.chart.ChartPanel; 
import org.jfree.chart.JFreeChart; 
import org.jfree.chart.axis.CategoryAxis; 
import org.jfree.chart.axis.ValueAxis; 
import org.jfree.chart.plot.CategoryPlot; 
import org.jfree.chart.plot.PlotOrientation; 
import org.jfree.data.category.DefaultCategoryDataset; 

/** 
* @see https://stackoverflow.com/a/37216788/230513 
*/ 
public class Test { 

    private void display() { 
     JFrame f = new JFrame("Test"); 
     f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
     DefaultCategoryDataset dataset = new DefaultCategoryDataset(); 
     dataset.setValue(24, "Major", "Mathematics"); 
     dataset.setValue(20, "Major", "Philosophy"); 
     dataset.setValue(18, "Major", "Chemical Engineering"); 
     dataset.setValue(15, "Major", "Sociology"); 
     dataset.setValue(14, "Major", "Stuff"); 
     dataset.setValue(13, "Major", "A Program"); 
     dataset.setValue(13, "Major", "Bleg"); 
     JFreeChart chart = ChartFactory.createBarChart("Title", "Major", "Score", 
      dataset, PlotOrientation.HORIZONTAL, false, true, false); 
     CategoryPlot plot = chart.getCategoryPlot(); 
     Font font1 = new Font("Dialog", Font.PLAIN, 25); 
     Font font2 = new Font("Dialog", Font.PLAIN, 15); 
     Font font3 = new Font("Dialog", Font.PLAIN, 25); 
     plot.getDomainAxis().setLabelFont(font3); 
     plot.getRangeAxis().setLabelFont(font3); 
     CategoryAxis axisDomain = plot.getDomainAxis(); 
     axisDomain.setTickLabelFont(font1); 
     ValueAxis axisRange = plot.getRangeAxis(); 
     axisRange.setTickLabelFont(font2); 
     chart.setAntiAlias(true); 
     f.add(new ChartPanel(chart){ 
      @Override 
      public Dimension getPreferredSize() { 
       return new Dimension(1024, 512); 
      } 
     }); 
     f.pack(); 
     f.setLocationRelativeTo(null); 
     f.setVisible(true); 
    } 

    public static void main(String[] args) { 
     EventQueue.invokeLater(new Test()::display); 
    } 
}