添加自定义字体JFreeChart [英] Adding custom font JFreeChart

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本文介绍了添加自定义字体JFreeChart的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我试图在我的 JFreeChart 标题中添加下面的 Font ：
http://www.urbanfonts.com/fonts/Back_to_Bay_6.htm



尝试使用代码实现此目的：

pre $ 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？
是否有可能这样做，我运行Mac？

  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）{
 //创建图表... 
 JFreeChart图表= ChartFactory.createXYLineChart（Function2DDemo1，/ / chart 
 // title 
X，// x轴标签
Y，// y轴标签
 dataset，//数据
 PlotOrientation。 VERTICAL，true，//包含图例
 true，//工具提示
 false //网址
）; 
 
 //设置一个CUSTOM TITLE字体
尝试{
 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）; 
 //打印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）; 
回报图; 
 
 
 public static XYDataset createDataset（）{
 XYDataset result = DatasetUtilities.sampleFunction2D（new X2（），-4.0，4.0，40，f（x）） ; 
返回结果; 
 
 
 public static JPanel createDemoPanel（）{
 JFreeChart chart = createChart（createDataset（））; 
返回新的ChartPanel（图表）; 
 
 
 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）; 
 
 
 
 $ div $解析方案

对于许多较老的，行为良好的字体，我们会得到预期的结果，如下所示。有很多方法会出现这种情况。例如，我在 createFont（）中找到 java.awt.FontFormatException：未找到字体名称新的 .ttf 字体位于 / Library / Fonts 中。您可能会尝试在另一个上下文中验证字体。




经测试： 

  import java.awt。 EventQueue的; 
 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; 
导入org.jfree.chart.ChartPanel; 
导入org.jfree.chart.JFreeChart; 
 import org.jfree.chart.plot.PlotOrientation; 
导入org.jfree.chart.plot.XYPlot; 
 import org.jfree.data.function.Function2D; 
 import org.jfree.data.general.DatasetUtilities; 
 import org.jfree.data.xy.XYDataset; 
导入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）{
 //创建图表... 
 JFreeChart图表= ChartFactory.createXYLineChart（Function2DDemo1，
X，// x轴标签
Y，// y轴标签
 dataset，//数据
 PlotOrientation.VERTICAL，true，//包含图例
 true，//工具提示
 false //网址
）; 
 
 //设置自定义标题字体
尝试{
文件f =新建文件（/ Library / Fonts / Microsoft / Perpetua.ttf）; 
字体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）; 
回报图; 
 
 
 public static XYDataset createDataset（）{
 XYDataset result = DatasetUtilities.sampleFunction2D（new X2（），-4.0，4.0，40，f（x）） ; 
返回结果; 
 
 
 public static JPanel createDemoPanel（）{
 JFreeChart chart = createChart（createDataset（））; 
返回新的ChartPanel（图表）; 
 
 
 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）; 
} 
}）; 
} 
}


I am trying to add the following Font to my JFreeChart title: http://www.urbanfonts.com/fonts/Back_to_Bay_6.htm

Trying to achieve this with the code:

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);

Ends up with a normal font:

Any ideas why? Is it possible it has something to do that I am running Mac?

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);
    }
}

解决方案

I'm getting the expected result for many older, well-behaved fonts, as shown below. There are a lot of ways for this to go awry. For example, I'm getting java.awt.FontFormatException: Font name not found in createFont() for a lot of the newer .ttf fonts in /Library/Fonts. You might try to validate the font in another context.

As tested:

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);
            }
        });
    }
}

这篇关于添加自定义字体JFreeChart的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！

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