我是JFreeChart的新手.
我的图表已附上.如您所见,标签被截断了.如何指定标签的宽度以避免被截断(我有很多适合放置的空间)?
我当前的代码如下:
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);
解决方法:
在建议的here方法中,以下示例覆盖了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://*.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);
}
}