为什么JFreeChart中没有文本? [英] Why is there no text in JFreeChart?

问题描述

JFreeChart似乎可以正常工作，但所有文本除外.它根本不显示，我也不知道为什么.我附上了一个窗口的图片和一个饼图，该饼图是从一个教程站点获得的.如您所见，该文本不可见. (对不起，我的Twitter提要很长)

JFreeChart seems to be working, except for all the text. It just doesn't show up at all, and I've no idea why. I attached a picture of a window with a pie graph that I got from a tutorial site. As you can see, the text isn't visible. (sorry my twitter feed was really long)

感谢

以下是生成以上图形的代码:

Here is the code that generates the above graph:

package analyzer_main;

import java.awt.Font;

public class FloatChart extends Composite implements Screen {

    JFreeChart floatChart;

    public FloatChart(Composite parent, int style){
        super(parent,style);
        createContents();
    }

    private void createContents(){
        this.setLayout(new FormLayout());
        floatChart = createChart(createDataset());
        ChartComposite chartComposite = new ChartComposite(this,SWT.NONE,floatChart, true);
        FormData fd_chartComposite = new FormData();
        fd_chartComposite.left  = new FormAttachment(0);
        fd_chartComposite.right = new FormAttachment(100,0);
        fd_chartComposite.top   = new FormAttachment(0);
        fd_chartComposite.bottom= new FormAttachment(100,0);
        chartComposite.setLayoutData(fd_chartComposite);
    }

/** * Creates the Dataset for the Pie chart */

    private PieDataset createDataset() {
        DefaultPieDataset dataset = new DefaultPieDataset();
        dataset.setValue("One", new Double(43.2));
        dataset.setValue("Two", new Double(10.0));
        dataset.setValue("Three", new Double(27.5));
        dataset.setValue("Four", new Double(17.5));
        dataset.setValue("Five", new Double(11.0));
        dataset.setValue("Six", new Double(19.4));
        return dataset;
    }

    private JFreeChart createChart(PieDataset dataset) {

        JFreeChart chart = ChartFactory.createPieChart("Pie Chart Demo 1", // chart
                // title
                dataset, // data
                true, // include legend
                true, false);

        PiePlot plot = (PiePlot) chart.getPlot();
        plot.setSectionOutlinesVisible(false);
        plot.setLabelFont(new Font("SansSerif", Font.PLAIN, 12));
        plot.setNoDataMessage("No data available");
        plot.setCircular(false);
        plot.setLabelGap(0.02);
        return chart;
    }

    @Override
    public void Load() {
    }

}

如您所见，它与本教程中的内容几乎相同.

As you can see, it's pretty much the same as from the tutorial.

推荐答案

我在使用Linux Mint 11，Eclipse和JFreeChart 1.0.14时遇到了同样的问题.我发现备份到1.0.13可以解决问题.

I was having the same problem using Linux Mint 11, Eclipse, and JFreeChart 1.0.14. I found that backing up to 1.0.13 resolved the problem.

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