添加自定义字体JFreeChart

Question

我正在尝试将以下Font添加到我的JFreeChart标题中： http://www.urbanfonts.com/fonts/Back_to_Bay_6.htm

尝试使用代码实现此目的：

InputStream is = new FileInputStream("backtobay.ttf");
java.awt.Font customFont = java.awt.Font.createFont(java.awt.Font.TRUETYPE_FONT, is);
customFont = customFont.deriveFont(24f);
chart.getTitle().setFont(customFont);

以普通字体结束：

任何想法为什么？ 有可能它有事情要做我运行Mac吗？

public class Function2DDemo1 extends ApplicationFrame {

    public Function2DDemo1(String title) {
        super(title);
        JPanel chartPanel = createDemoPanel();
        chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
        setContentPane(chartPanel);
    }

    private static JFreeChart createChart(XYDataset dataset) {
        // create the chart...
        JFreeChart chart = ChartFactory.createXYLineChart("Function2DDemo1 ", // chart
                                                                                // title
        "X", // x axis label
        "Y", // y axis label
        dataset, // data
        PlotOrientation.VERTICAL, true, // include legend
        true, // tooltips
        false // urls
        );

        // SET A CUSTOM TITLE FONT
        try {
            InputStream is = new FileInputStream("backtobay.ttf");
            java.awt.Font customFont = java.awt.Font.createFont(java.awt.Font.TRUETYPE_FONT, is);
            customFont = customFont.deriveFont(24f);
            chart.getTitle().setFont(customFont);
            // This prints "Back to Bay 6"
            System.out.println(customFont.getFontName());
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (FontFormatException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

        XYPlot plot = (XYPlot) chart.getPlot();
        plot.getDomainAxis().setLowerMargin(0.0);
        plot.getDomainAxis().setUpperMargin(0.0);
        return chart;
    }

    public static XYDataset createDataset() {
        XYDataset result = DatasetUtilities.sampleFunction2D(new X2(), -4.0, 4.0, 40, "f(x)");
        return result;
    }

    public static JPanel createDemoPanel() {
        JFreeChart chart = createChart(createDataset());
        return new ChartPanel(chart);
    }

    static class X2 implements Function2D {

        public double getValue(double x) {
            return x * x + 2;
        }
    }

    public static void main(String[] args) {
        Function2DDemo1 demo = new Function2DDemo1("JFreeChart: Function2DDemo1.java");
        demo.pack();
        RefineryUtilities.centerFrameOnScreen(demo);
        demo.setVisible(true);
    }
}

Answer 1

我得到了许多旧的，表现良好的字体的预期结果，如下所示。有很多方法可以解决这个问题。例如，我在java.awt.FontFormatException: Font name not found中获得了createFont()中.ttf中许多较新的/Library/Fonts字体的import java.awt.EventQueue; import java.awt.Font; import java.awt.FontFormatException; import java.io.File; import java.io.FileNotFoundException; import java.io.IOException; import javax.swing.JPanel; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.plot.XYPlot; import org.jfree.data.function.Function2D; import org.jfree.data.general.DatasetUtilities; import org.jfree.data.xy.XYDataset; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RefineryUtilities; public class Function2DDemo1 extends ApplicationFrame { public Function2DDemo1(String title) { super(title); JPanel chartPanel = createDemoPanel(); chartPanel.setPreferredSize(new java.awt.Dimension(500, 270)); setContentPane(chartPanel); setDefaultCloseOperation(EXIT_ON_CLOSE); } private static JFreeChart createChart(XYDataset dataset) { // create the chart... JFreeChart chart = ChartFactory.createXYLineChart("Function2DDemo1 ", "X", // x axis label "Y", // y axis label dataset, // data PlotOrientation.VERTICAL, true, // include legend true, // tooltips false // urls ); // SET A CUSTOM TITLE FONT try { File f = new File("/Library/Fonts/Microsoft/Perpetua.ttf"); Font customFont = Font.createFont(Font.TRUETYPE_FONT, f); customFont = customFont.deriveFont(36f); chart.getTitle().setFont(customFont); System.out.println(customFont.getFontName()); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (FontFormatException | IOException e) { e.printStackTrace(); } XYPlot plot = (XYPlot) chart.getPlot(); plot.getDomainAxis().setLowerMargin(0.0); plot.getDomainAxis().setUpperMargin(0.0); return chart; } public static XYDataset createDataset() { XYDataset result = DatasetUtilities.sampleFunction2D(new X2(), -4.0, 4.0, 40, "f(x)"); return result; } public static JPanel createDemoPanel() { JFreeChart chart = createChart(createDataset()); return new ChartPanel(chart); } static class X2 implements Function2D { public double getValue(double x) { return x * x + 2; } } public static void main(String[] args) { EventQueue.invokeLater(new Runnable() { @Override public void run() { Function2DDemo1 demo = new Function2DDemo1("JFreeChart: Function2DDemo1.java"); demo.pack(); RefineryUtilities.centerFrameOnScreen(demo); demo.setVisible(true); } }); } } 。您可能会尝试在另一个上下文中验证字体。

经测试：

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