Java JFreeChart.addSubtitle方法代碼示例

import org.jfree.chart.JFreeChart; //導入方法依賴的package包/類
/**
 * Creates a sample chart.
 *
 * @param dataset  the dataset.
 *
 * @return The chart.
 */
private static JFreeChart createChart(CategoryDataset dataset) {
    JFreeChart chart = ChartFactory.createBarChart(
        "Performance: JFreeSVG vs Batik", null /* x-axis label*/, 
            "Milliseconds" /* y-axis label */, dataset);
    chart.addSubtitle(new TextTitle("Time to generate 1000 charts in SVG " 
            + "format (lower bars = better performance)"));
    chart.setBackgroundPaint(Color.white);
    CategoryPlot plot = (CategoryPlot) chart.getPlot();

    NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
    rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
    BarRenderer renderer = (BarRenderer) plot.getRenderer();
    renderer.setDrawBarOutline(false);
    chart.getLegend().setFrame(BlockBorder.NONE);
    return chart;
}
 

import org.jfree.chart.JFreeChart; //導入方法依賴的package包/類
/**
     * Creates a sample chart.
     *
     * @param dataset  the dataset.
     *
     * @return The chart.
     */
    private static JFreeChart createChart(CategoryDataset dataset) {
        JFreeChart chart = ChartFactory.createBarChart(
            "Performance: JFreeSVG vs Batik", null /* x-axis label*/, 
                "Milliseconds" /* y-axis label */, dataset, PlotOrientation.HORIZONTAL,false,false,false);
        chart.addSubtitle(new TextTitle("Time to generate 1000 charts in SVG " 
                + "format (lower bars = better performance)"));
        chart.setBackgroundPaint(Color.white);
        CategoryPlot plot = (CategoryPlot) chart.getPlot();

        // ******************************************************************
        //  More than 150 demo applications are included with the JFreeChart
        //  Developer Guide...for more information, see:
        //
        //  >   http://www.object-refinery.com/jfreechart/guide.html
        //
        // ******************************************************************

        NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
        rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
        BarRenderer renderer = (BarRenderer) plot.getRenderer();
        renderer.setDrawBarOutline(false);
//        chart.getLegend().setFrame(BlockBorder.NONE);
        return chart;
    }
 

import org.jfree.chart.JFreeChart; //導入方法依賴的package包/類
/**
 * Creates a chart.
 *
 * @param dataset  a dataset.
 *
 * @return A chart.
 */
private static JFreeChart createChart(XYDataset dataset) {

    JFreeChart chart = ChartFactory.createTimeSeriesChart(
        "International Coffee Organisation : Coffee Prices",    // title
        null,             // x-axis label
        "US cents/lb",      // y-axis label
        dataset);

    String fontName = "Palatino";
    chart.getTitle().setFont(new Font(fontName, Font.BOLD, 18));
    chart.addSubtitle(new TextTitle("Source: http://www.ico.org/historical/2010-19/PDF/HIST-PRICES.pdf", new Font(fontName, Font.PLAIN, 14)));

    XYPlot plot = (XYPlot) chart.getPlot();
    plot.setDomainPannable(true);
    plot.setRangePannable(false);
    plot.setDomainCrosshairVisible(true);
    plot.setRangeCrosshairVisible(true);
    plot.getDomainAxis().setLowerMargin(0.0);
    plot.getDomainAxis().setLabelFont(new Font(fontName, Font.BOLD, 14));
    plot.getDomainAxis().setTickLabelFont(new Font(fontName, Font.PLAIN, 12));
    plot.getRangeAxis().setLabelFont(new Font(fontName, Font.BOLD, 14));
    plot.getRangeAxis().setTickLabelFont(new Font(fontName, Font.PLAIN, 12));
    chart.getLegend().setItemFont(new Font(fontName, Font.PLAIN, 14));
    chart.getLegend().setFrame(BlockBorder.NONE);
    chart.getLegend().setHorizontalAlignment(HorizontalAlignment.CENTER);
    XYItemRenderer r = plot.getRenderer();
    if (r instanceof XYLineAndShapeRenderer) {
        XYLineAndShapeRenderer renderer = (XYLineAndShapeRenderer) r;
        renderer.setDefaultShapesVisible(false);
        renderer.setDrawSeriesLineAsPath(true);
        // set the default stroke for all series
        renderer.setAutoPopulateSeriesStroke(false);
        renderer.setDefaultStroke(new BasicStroke(3.0f, 
                BasicStroke.CAP_ROUND, BasicStroke.JOIN_BEVEL), false);
        renderer.setSeriesPaint(0, Color.RED);
        renderer.setSeriesPaint(1, new Color(24, 123, 58));
        renderer.setSeriesPaint(2, new Color(149, 201, 136));
        renderer.setSeriesPaint(3, new Color(1, 62, 29));
        renderer.setSeriesPaint(4, new Color(81, 176, 86));
        renderer.setSeriesPaint(5, new Color(0, 55, 122));
        renderer.setSeriesPaint(6, new Color(0, 92, 165));
        renderer.setDefaultLegendTextFont(new Font(fontName, Font.PLAIN, 14));
    }

    return chart;

}
 

import org.jfree.chart.JFreeChart; //導入方法依賴的package包/類
/**
 * Creates a chart.
 *
 * @param dataset  the dataset.
 *
 * @return A chart.
 */
private static JFreeChart createChart(PieDataset dataset) {

    JFreeChart chart = ChartFactory.createPieChart(
        "Smart Phones Manufactured / Q3 2011", dataset);

    // set a custom background for the chart
    chart.setBackgroundPaint(new GradientPaint(new Point(0, 0), 
            new Color(20, 20, 20), new Point(400, 200), Color.DARK_GRAY));

    // customise the title position and font
    TextTitle t = chart.getTitle();
    t.setHorizontalAlignment(HorizontalAlignment.LEFT);
    t.setPaint(new Color(240, 240, 240));
    t.setFont(new Font("Arial", Font.BOLD, 26));

    PiePlot plot = (PiePlot) chart.getPlot();
    plot.setBackgroundPaint(null);
    plot.setInteriorGap(0.04);
    plot.setOutlineVisible(false);

    // use gradients and white borders for the section colours
    plot.setSectionPaint("Others", createGradientPaint(new Color(200, 200, 255), Color.BLUE));
    plot.setSectionPaint("Samsung", createGradientPaint(new Color(255, 200, 200), Color.RED));
    plot.setSectionPaint("Apple", createGradientPaint(new Color(200, 255, 200), Color.GREEN));
    plot.setSectionPaint("Nokia", createGradientPaint(new Color(200, 255, 200), Color.YELLOW));
    plot.setDefaultSectionOutlinePaint(Color.WHITE);
    plot.setSectionOutlinesVisible(true);
    plot.setDefaultSectionOutlineStroke(new BasicStroke(2.0f));

    // customise the section label appearance
    plot.setLabelFont(new Font("Courier New", Font.BOLD, 20));
    plot.setLabelLinkPaint(Color.WHITE);
    plot.setLabelLinkStroke(new BasicStroke(2.0f));
    plot.setLabelOutlineStroke(null);
    plot.setLabelPaint(Color.WHITE);
    plot.setLabelBackgroundPaint(null);
    
    // add a subtitle giving the data source
    TextTitle source = new TextTitle("Source: http://www.bbc.co.uk/news/business-15489523", 
            new Font("Courier New", Font.PLAIN, 12));
    source.setPaint(Color.WHITE);
    source.setPosition(RectangleEdge.BOTTOM);
    source.setHorizontalAlignment(HorizontalAlignment.RIGHT);
    chart.addSubtitle(source);
    return chart;

}
 

import org.jfree.chart.JFreeChart; //導入方法依賴的package包/類
/**
 * Creates a chart.
 *
 * @param dataset  a dataset.
 *
 * @return A chart.
 */
private static JFreeChart createChart(XYDataset dataset) {

    JFreeChart chart = ChartFactory.createTimeSeriesChart(
        "International Coffee Organisation : Coffee Prices",    // title
        null,             // x-axis label
        "US cents/lb",      // y-axis label
        dataset);

    String fontName = "Palatino";
    chart.getTitle().setFont(new Font(fontName, Font.BOLD, 18));
    chart.addSubtitle(new TextTitle("Source: http://www.ico.org/historical/2010-19/PDF/HIST-PRICES.pdf", 
            new Font(fontName, Font.PLAIN, 14)));

    XYPlot plot = (XYPlot) chart.getPlot();
    plot.setDomainPannable(true);
    plot.setRangePannable(true);
    plot.setDomainCrosshairVisible(true);
    plot.setRangeCrosshairVisible(true);
    plot.getDomainAxis().setLowerMargin(0.0);
    plot.getDomainAxis().setLabelFont(new Font(fontName, Font.BOLD, 14));
    plot.getDomainAxis().setTickLabelFont(new Font(fontName, Font.PLAIN, 12));
    plot.getRangeAxis().setLabelFont(new Font(fontName, Font.BOLD, 14));
    plot.getRangeAxis().setTickLabelFont(new Font(fontName, Font.PLAIN, 12));
    chart.getLegend().setItemFont(new Font(fontName, Font.PLAIN, 14));
    chart.getLegend().setFrame(BlockBorder.NONE);
    chart.getLegend().setHorizontalAlignment(HorizontalAlignment.CENTER);
    XYItemRenderer r = plot.getRenderer();
    if (r instanceof XYLineAndShapeRenderer) {
        XYLineAndShapeRenderer renderer = (XYLineAndShapeRenderer) r;
        renderer.setDefaultShapesVisible(false);
        renderer.setDrawSeriesLineAsPath(true);
        // set the default stroke for all series
        renderer.setAutoPopulateSeriesStroke(false);
        renderer.setDefaultStroke(new BasicStroke(3.0f));
        renderer.setSeriesPaint(0, Color.RED);
        renderer.setSeriesPaint(1, new Color(24, 123, 58));
        renderer.setSeriesPaint(2, new Color(149, 201, 136));
        renderer.setSeriesPaint(3, new Color(1, 62, 29));
        renderer.setSeriesPaint(4, new Color(81, 176, 86));
        renderer.setSeriesPaint(5, new Color(0, 55, 122));
        renderer.setSeriesPaint(6, new Color(0, 92, 165));
    }

    return chart;

}
 

import org.jfree.chart.JFreeChart; //導入方法依賴的package包/類
/**
     * Creates a chart.
     *
     * @param dataset  the dataset.
     *
     * @return A chart.
     */
    private static JFreeChart createChart(PieDataset dataset) {

        JFreeChart chart = ChartFactory.createPieChart(
            "Smart Phones Manufactured / Q3 2011",  // chart title
            dataset,            // data
            false,              // no legend
            true,               // tooltips
            false               // no URL generation
        );

        // set a custom background for the chart
        chart.setBackgroundPaint(new GradientPaint(new Point(0, 0), 
                new Color(20, 20, 20), new Point(400, 200), Color.DARK_GRAY));

        // customise the title position and font
        TextTitle t = chart.getTitle();
        t.setHorizontalAlignment(HorizontalAlignment.LEFT);
        t.setPaint(new Color(240, 240, 240));
        t.setFont(new Font("Arial", Font.BOLD, 26));

        PiePlot plot = (PiePlot) chart.getPlot();
        plot.setBackgroundPaint(null);
        plot.setInteriorGap(0.04);
//        plot.setOutlineVisible(false);

        // use gradients and white borders for the section colours
        plot.setSectionPaint("Others", createGradientPaint(new Color(200, 200, 255), Color.BLUE));
        plot.setSectionPaint("Samsung", createGradientPaint(new Color(255, 200, 200), Color.RED));
        plot.setSectionPaint("Apple", createGradientPaint(new Color(200, 255, 200), Color.GREEN));
        plot.setSectionPaint("Nokia", createGradientPaint(new Color(200, 255, 200), Color.YELLOW));
        plot.setBaseSectionOutlinePaint(Color.WHITE);
        plot.setSectionOutlinesVisible(true);
        plot.setBaseSectionOutlineStroke(new BasicStroke(2.0f));

        // customise the section label appearance
        plot.setLabelFont(new Font("Courier New", Font.BOLD, 20));
        plot.setLabelLinkPaint(Color.WHITE);
        plot.setLabelLinkStroke(new BasicStroke(2.0f));
        plot.setLabelOutlineStroke(null);
        plot.setLabelPaint(Color.WHITE);
        plot.setLabelBackgroundPaint(null);
        
        // add a subtitle giving the data source
        TextTitle source = new TextTitle("Source: http://www.bbc.co.uk/news/business-15489523", 
                new Font("Courier New", Font.PLAIN, 12));
        source.setPaint(Color.WHITE);
        source.setPosition(RectangleEdge.BOTTOM);
        source.setHorizontalAlignment(HorizontalAlignment.RIGHT);
        chart.addSubtitle(source);
        return chart;

    }
 

import org.jfree.chart.JFreeChart; //導入方法依賴的package包/類
/**
 * Creates an overlaid chart.
 *
 * @return The chart.
 */
private static JFreeChart createCombinedChart() {

    // create plot ...
    IntervalXYDataset data1 = createDataset1();
    XYItemRenderer renderer1 = new XYLineAndShapeRenderer(true, false);
    renderer1.setBaseToolTipGenerator(new StandardXYToolTipGenerator(
            StandardXYToolTipGenerator.DEFAULT_TOOL_TIP_FORMAT,
            new SimpleDateFormat("d-MMM-yyyy"), new DecimalFormat("0.00")));
    renderer1.setSeriesStroke(0, new BasicStroke(4.0f,
            BasicStroke.CAP_ROUND, BasicStroke.JOIN_BEVEL));
    renderer1.setSeriesPaint(0, Color.blue);

    DateAxis domainAxis = new DateAxis("Year");
    domainAxis.setLowerMargin(0.0);
    domainAxis.setUpperMargin(0.02);
    ValueAxis rangeAxis = new NumberAxis("$billion");
    XYPlot plot1 = new XYPlot(data1, null, rangeAxis, renderer1);
    plot1.setBackgroundPaint(Color.lightGray);
    plot1.setDomainGridlinePaint(Color.white);
    plot1.setRangeGridlinePaint(Color.white);

    // add a second dataset and renderer...
    IntervalXYDataset data2 = createDataset2();
    XYBarRenderer renderer2 = new XYBarRenderer() {
        public Paint getItemPaint(int series, int item) {
            XYDataset dataset = getPlot().getDataset();
            if (dataset.getYValue(series, item) >= 0.0) {
                return Color.red;
            }
            else {
                return Color.green;
            }
        }
    };
    renderer2.setSeriesPaint(0, Color.red);
    renderer2.setDrawBarOutline(false);
    renderer2.setBaseToolTipGenerator(new StandardXYToolTipGenerator(
            StandardXYToolTipGenerator.DEFAULT_TOOL_TIP_FORMAT,
            new SimpleDateFormat("d-MMM-yyyy"), new DecimalFormat("0.00")));

    XYPlot plot2 = new XYPlot(data2, null, new NumberAxis("$billion"),
            renderer2);
    plot2.setBackgroundPaint(Color.lightGray);
    plot2.setDomainGridlinePaint(Color.white);
    plot2.setRangeGridlinePaint(Color.white);

    CombinedXYPlot cplot = new CombinedXYPlot(domainAxis, rangeAxis);
    cplot.add(plot1, 3);
    cplot.add(plot2, 2);
    cplot.setGap(8.0);
    cplot.setDomainGridlinePaint(Color.white);
    cplot.setDomainGridlinesVisible(true);

    // return a new chart containing the overlaid plot...
    JFreeChart chart = new JFreeChart("CombinedXYPlotDemo1",
            JFreeChart.DEFAULT_TITLE_FONT, cplot, false);
    chart.setBackgroundPaint(Color.white);
    LegendTitle legend = new LegendTitle(cplot);
    chart.addSubtitle(legend);
    return chart;
}