JFreeChart Etikettenbreite

Question

Ich bin neu in JFreeChart.

Mein Diagramm ist beigefügt. Wie Sie sehen können, sind die Beschriftungen abgeschnitten. Wie gebe ich die Breite des Labels an, um eine Kürzung zu vermeiden (ich habe viel Platz, um sie anzupassen)?

Mein aktueller Code ist wie folgt:

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

Unter den Ansätzen vorgeschlagen here, das folgende Beispiel überschreibt 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); 
    } 
}