org.jfree.chart.ChartFactory Java Examples

/**
 * Draws a pie chart where the label generator returns null.
 */
@Test
public void testDrawWithNullLegendLabels() {
    DefaultPieDataset dataset = new DefaultPieDataset();
    dataset.setValue("L1", 12.0);
    dataset.setValue("L2", 11.0);
    JFreeChart chart = ChartFactory.createPieChart("Test", dataset, true,
            false, false);
    PiePlot plot = (PiePlot) chart.getPlot();
    plot.setLegendLabelGenerator(new NullLegendLabelGenerator());
    boolean success = false;
    try {
        BufferedImage image = new BufferedImage(200 , 100,
                BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = image.createGraphics();
        chart.draw(g2, new Rectangle2D.Double(0, 0, 200, 100), null, null);
        g2.dispose();
        success = true;
    }
    catch (Exception e) {
      success = false;
    }
    assertTrue(success);
}
 

/**
 * Performing scatter plot with grid
 * @param xLabel
 * @param yLabel
 */
public JFreeChart scatterGridPlot(String xLabel, String yLabel){
    int numDatasets = dataset.size();
    JFreeChart result = ChartFactory.createScatterPlot(chartTitle
            , xLabel
            , yLabel
            , dataset.get(0));
    XYPlot plot = result.getXYPlot();
    plot.getRenderer().setSeriesStroke(0, new BasicStroke(1.0f));
    plot.getRenderer().setSeriesPaint(0, seriesColor.get(0));        
    for(int i=1;i<numDatasets;i++){
        plot.setDataset(i,dataset.get(i));
        //XYItemRenderer renderer = plot.getRenderer(i-0);
        plot.setRenderer(i, new XYLineAndShapeRenderer(true, true));
        plot.getRenderer(i).setSeriesStroke(0, new BasicStroke(1.0f));
        plot.getRenderer(i).setSeriesPaint(0,seriesColor.get(i));
    }

    return result;
}
 

public static synchronized ChartPanel createLineXYChart(XYSeriesCollection dataset, String title, String categoryAxisLabel, String valueAxisLabel, long timeRefresh) {

        final JFreeChart chart = ChartFactory.createXYLineChart(title, categoryAxisLabel, valueAxisLabel, dataset, PlotOrientation.VERTICAL, true, true, false);

        final XYPlot plot = chart.getXYPlot();
        plot.setBackgroundPaint(Color.lightGray);
        plot.setDomainGridlinePaint(Color.white);
        plot.setRangeGridlinePaint(Color.white);
        plot.getDomainAxis().setFixedAutoRange(timeRefresh * 100);
        chart.setBackgroundPaint(Color.lightGray);

        ChartPanel localChartPanel = new ChartPanel(chart);
        localChartPanel.setVisible(true);
        localChartPanel.setDomainZoomable(true);

        return localChartPanel;
    }
 

/**
 * Create a line chart with sample data in the range -3 to +3.
 *
 * @return The chart.
 */
private static JFreeChart createLineChart3D() {

    // create a dataset...
    Number[][] data = new Integer[][]
        {{new Integer(-3), new Integer(-2)},
         {new Integer(-1), new Integer(1)},
         {new Integer(2), new Integer(3)}};

    CategoryDataset dataset = DatasetUtilities.createCategoryDataset("S", 
            "C", data);

    // create the chart...
    return ChartFactory.createLineChart3D(
        "Line Chart",
        "Domain", "Range",
        dataset,
        PlotOrientation.HORIZONTAL,
        true,     // include legend
        true,
        true
    );

}
 

/**
 * Test chart drawing with an empty dataset to ensure that this special
 * case doesn't cause any exceptions.
 */
@Test
public void testDrawWithEmptyDataset() {
    boolean success = false;
    JFreeChart chart = ChartFactory.createStackedXYAreaChart("title", "x",
            "y", new DefaultTableXYDataset(), PlotOrientation.VERTICAL,
            true, false, false);
    XYPlot plot = (XYPlot) chart.getPlot();
    plot.setRenderer(new StackedXYAreaRenderer2());
    try {
        BufferedImage image = new BufferedImage(200 , 100,
                BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = image.createGraphics();
        chart.draw(g2, new Rectangle2D.Double(0, 0, 200, 100), null, null);
        g2.dispose();
        success = true;
    }
    catch (Exception e) {
        success = false;
    }
    assertTrue(success);
}
 

/**
 * This test ensures that a plot with markers is serialized correctly.
 */
@Test
public void testSerialization4() {
    DefaultCategoryDataset dataset = new DefaultCategoryDataset();
    JFreeChart chart = ChartFactory.createBarChart(
            "Test Chart", "Category Axis", "Value Axis",
            dataset, PlotOrientation.VERTICAL, true, true, false);
    CategoryPlot plot = (CategoryPlot) chart.getPlot();
    plot.addRangeMarker(new ValueMarker(1.1), Layer.FOREGROUND);
    plot.addRangeMarker(new IntervalMarker(2.2, 3.3), Layer.BACKGROUND);
    JFreeChart chart2 = (JFreeChart) TestUtilities.serialised(chart);
    assertEquals(chart, chart2);

    // now check that the chart is usable...
    try {
        chart2.createBufferedImage(300, 200);
    }
    catch (Exception e) {
        fail("No exception should be thrown.");
    }
}
 

private static JFreeChart createChart(XYDataset dataset) {

		// create the chart...
		JFreeChart chart = ChartFactory.createXYLineChart(null,                      // chart title
				null,                      // x axis label
				null,                      // y axis label
				dataset,                   // data
				PlotOrientation.VERTICAL, false,                     // include legend
				true,                      // tooltips
				false                      // urls
				);

		chart.setBackgroundPaint(Color.white);

		// get a reference to the plot for further customization...
		XYPlot plot = (XYPlot) chart.getPlot();
		plot.setBackgroundPaint(Color.WHITE);

		ValueAxis valueAxis = plot.getRangeAxis();
		valueAxis.setLabelFont(LABEL_FONT_BOLD);
		valueAxis.setTickLabelFont(LABEL_FONT);

		return chart;
	}
 

/**
 * Checks that a call to the zoom() method generates just one
 * ChartChangeEvent.
 */
public void test2502355_zoom() {
    DefaultXYDataset dataset = new DefaultXYDataset();
    JFreeChart chart = ChartFactory.createXYLineChart("TestChart", "X",
            "Y", dataset, false);
    ChartPanel panel = new ChartPanel(chart);
    chart.addChangeListener(this);
    this.chartChangeEvents.clear();
    panel.zoom(new Rectangle2D.Double(1.0, 2.0, 3.0, 4.0));
    assertEquals(1, this.chartChangeEvents.size());
}
 

/**
 * A test for bug 1654215 (where a renderer is added to the plot without
 * a corresponding dataset and it throws an exception at drawing time).
 */
@Test
public void test1654215() {
    DefaultXYDataset dataset = new DefaultXYDataset();
    JFreeChart chart = ChartFactory.createXYLineChart("Title", "X", "Y",
            dataset, PlotOrientation.VERTICAL, true, false, false);
    XYPlot plot = (XYPlot) chart.getPlot();
    plot.setRenderer(1, new XYLineAndShapeRenderer());
    try {
        BufferedImage image = new BufferedImage(200 , 100,
                BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = image.createGraphics();
        chart.draw(g2, new Rectangle2D.Double(0, 0, 200, 100), null, null);
        g2.dispose();
    }
    catch (Exception e) {
        fail("No exception should be thrown.");
    }
}
 

public GraphData(String printer_id, String outDir, boolean warn, String printer_track_quantity, String label, XYSeriesCollection dataset, String time,
		ArrayList<String> learnSpecs) {
	this.outDir = outDir;
	this.printer_id = printer_id;
	this.warn = warn;
	this.learnSpecs = learnSpecs;
	graphSpecies = new ArrayList<String>();
	graphed = new LinkedList<GraphSpecies>();
	chart = ChartFactory.createXYLineChart(label, time, printer_track_quantity, dataset, PlotOrientation.VERTICAL, true, true, false);
	applyChartTheme();
	chart.setBackgroundPaint(new java.awt.Color(238, 238, 238));
	chart.getPlot().setBackgroundPaint(java.awt.Color.WHITE);
	chart.getXYPlot().setDomainGridlinePaint(java.awt.Color.LIGHT_GRAY);
	chart.getXYPlot().setRangeGridlinePaint(java.awt.Color.LIGHT_GRAY);
	legend = chart.getLegend();
	timeSeriesPlot = true;
	LogX = false;
	LogY = false;
	visibleLegend = false;
	averageOrder = null;
	resize(dataset);
}
 

/**
 * Performing line plot
 * @param xLabel
 * @param yLabel
 */
public JFreeChart linePlot(String xLabel, String yLabel){
    int numDatasets = dataset.size();
    JFreeChart result = ChartFactory.createXYLineChart(
chartTitle, // chart title
xLabel, // x axis label
yLabel, // y axis label
dataset.get(0), // data
PlotOrientation.VERTICAL, 
true, // include legend
true, // tooltips
false // urls
    );
    XYPlot plot = result.getXYPlot();
    plot.getRenderer().setSeriesStroke(0, new BasicStroke(1.0f));
    plot.getRenderer().setSeriesPaint(0, seriesColor.get(0));
    for(int i=1;i<numDatasets;i++){
        plot.setDataset(i,dataset.get(i));
        //XYItemRenderer renderer = plot.getRenderer(i-0);
        //plot.setRenderer(i, new XYLineAndShapeRenderer(false, true));
        plot.getRenderer(i).setSeriesStroke(0, new BasicStroke(1.0f));
        plot.getRenderer(i).setSeriesPaint(0,seriesColor.get(i));
    }

    return result;
}
 

/**
 * Draws a pie chart where the label generator returns null.
 */
@Test
public void testDrawWithNullDataset() {
    JFreeChart chart = ChartFactory.createPieChart3D("Test", null, true,
            false, false);
    boolean success = false;
    try {
        BufferedImage image = new BufferedImage(200 , 100,
                BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = image.createGraphics();
        chart.draw(g2, new Rectangle2D.Double(0, 0, 200, 100), null, null);
        g2.dispose();
        success = true;
    }
    catch (Exception e) {
        success = false;
    }
    assertTrue(success);
}
 

/**
 * A test for bug 1654215 (where a renderer is added to the plot without
 * a corresponding dataset and it throws an exception at drawing time).
 */
@Test
public void test1654215() {
    DefaultXYDataset dataset = new DefaultXYDataset();
    JFreeChart chart = ChartFactory.createXYLineChart("Title", "X", "Y",
            dataset, PlotOrientation.VERTICAL, true, false, false);
    XYPlot plot = (XYPlot) chart.getPlot();
    plot.setRenderer(1, new XYLineAndShapeRenderer());
    try {
        BufferedImage image = new BufferedImage(200 , 100,
                BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = image.createGraphics();
        chart.draw(g2, new Rectangle2D.Double(0, 0, 200, 100), null, null);
        g2.dispose();
    }
    catch (Exception e) {
        fail("No exception should be thrown.");
    }
}
 

/**
 * Draws a pie chart where the label generator returns null.
 */
@Test
public void testDrawWithNullDataset() {
    JFreeChart chart = ChartFactory.createPieChart3D("Test", null, true,
            false, false);
    boolean success = false;
    try {
        BufferedImage image = new BufferedImage(200 , 100,
                BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = image.createGraphics();
        chart.draw(g2, new Rectangle2D.Double(0, 0, 200, 100), null, null);
        g2.dispose();
        success = true;
    }
    catch (Exception e) {
        success = false;
    }
    assertTrue(success);
}
 

/**
 * This test ensures that a plot with markers is serialized correctly.
 */
@Test
public void testSerialization4() {
    DefaultCategoryDataset dataset = new DefaultCategoryDataset();
    JFreeChart chart = ChartFactory.createBarChart(
            "Test Chart", "Category Axis", "Value Axis",
            dataset, PlotOrientation.VERTICAL, true, true, false);
    CategoryPlot plot = (CategoryPlot) chart.getPlot();
    plot.addRangeMarker(new ValueMarker(1.1), Layer.FOREGROUND);
    plot.addRangeMarker(new IntervalMarker(2.2, 3.3), Layer.BACKGROUND);
    JFreeChart chart2 = (JFreeChart) TestUtilities.serialised(chart);
    assertEquals(chart, chart2);

    // now check that the chart is usable...
    try {
        chart2.createBufferedImage(300, 200);
    }
    catch (Exception e) {
        fail("No exception should be thrown.");
    }
}
 

/**
 * A test for bug 1654215 (where a renderer is added to the plot without
 * a corresponding dataset and it throws an exception at drawing time).
 */
@Test
public void test1654215() {
    DefaultCategoryDataset dataset = new DefaultCategoryDataset();
    JFreeChart chart = ChartFactory.createLineChart("Title", "X", "Y",
            dataset, PlotOrientation.VERTICAL, true, false, false);
    CategoryPlot plot = (CategoryPlot) chart.getPlot();
    plot.setRenderer(1, new LineAndShapeRenderer());
    try {
        BufferedImage image = new BufferedImage(200 , 100,
                BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = image.createGraphics();
        chart.draw(g2, new Rectangle2D.Double(0, 0, 200, 100), null, null);
        g2.dispose();
    }
    catch (Exception e) {
        fail("No exception should be thrown.");
    }
}
 

/**
   * Creates a sample chart.
   *
   * @return A chart.
   */
  private JFreeChart createChart(final int year)
  {

    final JFreeChart chart = ChartFactory.createPieChart3D(
        "Programming Language of the Year " + year, // chart title
        createSampleDataset(), // data
        true, // include legend
        true,
        false
    );

    // set the background color for the chart...
    final PiePlot3D plot = (PiePlot3D) chart.getPlot();
    plot.setStartAngle(270);
//    plot.setDirection(Rotation.CLOCKWISE);
    plot.setForegroundAlpha(0.5f);
    plot.setNoDataMessage("No data to display");

    return chart;

  }
 

/**
 * Check that the renderer is calculating the domain bounds correctly.
 */
@Test
public void testFindDomainBounds() {
    XYSeriesCollection dataset
            = RendererXYPackageUtils.createTestXYSeriesCollection();
    JFreeChart chart = ChartFactory.createXYLineChart(
            "Test Chart", "X", "Y", dataset, PlotOrientation.VERTICAL,
            false, false, false);
    XYPlot plot = (XYPlot) chart.getPlot();
    NumberAxis domainAxis = (NumberAxis) plot.getDomainAxis();
    domainAxis.setAutoRangeIncludesZero(false);
    Range bounds = domainAxis.getRange();
    assertFalse(bounds.contains(0.9));
    assertTrue(bounds.contains(1.0));
    assertTrue(bounds.contains(2.0));
    assertFalse(bounds.contains(2.10));
}
 

/**
 * Checks that the auto-range for the range axis on an XYPlot is
 * working as expected.
 */
public void testXYAutoRange2() {
    XYSeries series = new XYSeries("Series 1");
    series.add(1.0, 1.0);
    series.add(2.0, 2.0);
    series.add(3.0, 3.0);
    XYSeriesCollection dataset = new XYSeriesCollection();
    dataset.addSeries(series);
    JFreeChart chart = ChartFactory.createScatterPlot("Test", "X", "Y",
            dataset, false);
    XYPlot plot = (XYPlot) chart.getPlot();
    NumberAxis axis = (NumberAxis) plot.getRangeAxis();
    axis.setAutoRangeIncludesZero(false);
    assertEquals(0.9, axis.getLowerBound(), EPSILON);
    assertEquals(3.1, axis.getUpperBound(), EPSILON);
}
 

@Override
public JFreeChart initChart() {
	
	JFreeChart chart = ChartFactory.createPieChart3D("Color repartition", // chart title
			getDataSet(), // data
			false, // include legend
			true, true);
	
	PiePlot plot = (PiePlot) chart.getPlot();
	
	for(MTGColor c : MTGColor.values())
	{
		plot.setSectionPaint(c,c.toColor());
		
	}
	plot.setSectionPaint("Multi", Color.YELLOW);
	plot.setSectionPaint("multi", Color.YELLOW);
	
	plot.setSimpleLabels(true);

	PieSectionLabelGenerator generator = new StandardPieSectionLabelGenerator("{1}", new DecimalFormat("0"),
			new DecimalFormat("0.00%"));
	plot.setLabelGenerator(generator);

	return chart;
}
 

/**
 * A simple test for the auto-range calculation looking at a
 * NumberAxis used as the range axis for a CategoryPlot.  In this
 * case, the 'autoRangeIncludesZero' flag is set to false AND the
 * original dataset is replaced with a new dataset.
 */
@Test
public void testAutoRange3() {
    DefaultCategoryDataset dataset = new DefaultCategoryDataset();
    dataset.setValue(100.0, "Row 1", "Column 1");
    dataset.setValue(200.0, "Row 1", "Column 2");
    JFreeChart chart = ChartFactory.createLineChart("Test", "Categories",
            "Value", dataset, PlotOrientation.VERTICAL, false, false,
            false);
    CategoryPlot plot = (CategoryPlot) chart.getPlot();
    NumberAxis axis = (NumberAxis) plot.getRangeAxis();
    axis.setAutoRangeIncludesZero(false);
    assertEquals(axis.getLowerBound(), 95.0, EPSILON);
    assertEquals(axis.getUpperBound(), 205.0, EPSILON);

    // now replacing the dataset should update the axis range...
    DefaultCategoryDataset dataset2 = new DefaultCategoryDataset();
    dataset2.setValue(900.0, "Row 1", "Column 1");
    dataset2.setValue(1000.0, "Row 1", "Column 2");
    plot.setDataset(dataset2);
    assertEquals(axis.getLowerBound(), 895.0, EPSILON);
    assertEquals(axis.getUpperBound(), 1005.0, EPSILON);
}
 

/**
 * Creates a chart.
 * 
 * @param dataset  the dataset.
 * 
 * @return A chart.
 */
private static 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;
    
}
 

/**
 * Check that the renderer is calculating the range bounds correctly.
 */
@Test
public void testFindRangeBounds() {
    TableXYDataset dataset
            = RendererXYPackageUtils.createTestTableXYDataset();
    JFreeChart chart = ChartFactory.createXYLineChart(
            "Test Chart", "X", "Y", dataset, PlotOrientation.VERTICAL,
            false, false, false);
    XYPlot plot = (XYPlot) chart.getPlot();
    NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
    rangeAxis.setAutoRangeIncludesZero(false);
    Range bounds = rangeAxis.getRange();
    assertFalse(bounds.contains(1.0));
    assertTrue(bounds.contains(2.0));
    assertTrue(bounds.contains(5.0));
    assertFalse(bounds.contains(6.0));
}
 

/**
 * Tests the the lower and upper margin settings produce the expected
 * results.
 */
@Test
public void testAxisMargins() {
    XYSeries series = new XYSeries("S1");
    series.add(100.0, 1.1);
    series.add(200.0, 2.2);
    XYSeriesCollection dataset = new XYSeriesCollection(series);
    dataset.setIntervalWidth(0.0);
    JFreeChart chart = ChartFactory.createScatterPlot("Title", "X", "Y", 
            dataset);
    ValueAxis domainAxis = ((XYPlot) chart.getPlot()).getDomainAxis();
    Range r = domainAxis.getRange();
    assertEquals(110.0, r.getLength(), EPSILON);
    domainAxis.setLowerMargin(0.10);
    domainAxis.setUpperMargin(0.10);
    r = domainAxis.getRange();
    assertEquals(120.0, r.getLength(), EPSILON);
}
 

/**
 * Serialize an instance, restore it, and check for equality.
 */
@Test
public void testSerialization3() {
    DefaultCategoryDataset dataset = new DefaultCategoryDataset();
    JFreeChart chart = ChartFactory.createBarChart(
            "Test Chart", "Category Axis", "Value Axis", dataset,
            PlotOrientation.VERTICAL, true, true, false);
    JFreeChart chart2 = (JFreeChart) TestUtilities.serialised(chart);

    // now check that the chart is usable...
    try {
        chart2.createBufferedImage(300, 200);
    }
    catch (Exception e) {
        fail("No exception should be thrown.");
    }
}
 

/**
 * Check that the renderer is calculating the domain bounds correctly.
 */
@Test
public void testFindDomainBounds() {
    TableXYDataset dataset
            = RendererXYPackageUtils.createTestTableXYDataset();
    JFreeChart chart = ChartFactory.createStackedXYAreaChart(
            "Test Chart", "X", "Y", dataset,
            PlotOrientation.VERTICAL, false, false, false);
    XYPlot plot = (XYPlot) chart.getPlot();
    plot.setRenderer(new StackedXYBarRenderer());
    NumberAxis domainAxis = (NumberAxis) plot.getDomainAxis();
    domainAxis.setAutoRangeIncludesZero(false);
    Range bounds = domainAxis.getRange();
    assertFalse(bounds.contains(0.3));
    assertTrue(bounds.contains(0.5));
    assertTrue(bounds.contains(2.5));
    assertFalse(bounds.contains(2.8));
}
 

/**
 * A test for bug 1654215 (where a renderer is added to the plot without
 * a corresponding dataset and it throws an exception at drawing time).
 */
@Test
public void test1654215() {
    DefaultXYDataset dataset = new DefaultXYDataset();
    JFreeChart chart = ChartFactory.createXYLineChart("Title", "X", "Y",
            dataset, PlotOrientation.VERTICAL, true, false, false);
    XYPlot plot = (XYPlot) chart.getPlot();
    plot.setRenderer(1, new XYLineAndShapeRenderer());
    try {
        BufferedImage image = new BufferedImage(200 , 100,
                BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = image.createGraphics();
        chart.draw(g2, new Rectangle2D.Double(0, 0, 200, 100), null, null);
        g2.dispose();
    }
    catch (Exception e) {
        fail("No exception should be thrown.");
    }
}
 

/**
 * Common test setup.
 */
protected void setUp() {

    // create a dataset...
    DefaultPieDataset data = new DefaultPieDataset();
    data.setValue("Java", new Double(43.2));
    data.setValue("Visual Basic", new Double(0.0));
    data.setValue("C/C++", new Double(17.5));

    // create the chart...
    this.pieChart = ChartFactory.createPieChart(
        "Pie Chart",  // chart title
        data,         // data
        true,         // include legend
        true,
        false
    );

}
 

/**
 * A simple test for the auto-range calculation looking at a
 * NumberAxis used as the range axis for a CategoryPlot.  In this
 * case, the 'autoRangeIncludesZero' flag is set to false AND the
 * original dataset is replaced with a new dataset.
 */
@Test
public void testAutoRange3() {
    DefaultCategoryDataset dataset = new DefaultCategoryDataset();
    dataset.setValue(100.0, "Row 1", "Column 1");
    dataset.setValue(200.0, "Row 1", "Column 2");
    JFreeChart chart = ChartFactory.createLineChart("Test", "Categories",
            "Value", dataset, PlotOrientation.VERTICAL, false, false,
            false);
    CategoryPlot plot = (CategoryPlot) chart.getPlot();
    NumberAxis axis = (NumberAxis) plot.getRangeAxis();
    axis.setAutoRangeIncludesZero(false);
    assertEquals(axis.getLowerBound(), 95.0, EPSILON);
    assertEquals(axis.getUpperBound(), 205.0, EPSILON);

    // now replacing the dataset should update the axis range...
    DefaultCategoryDataset dataset2 = new DefaultCategoryDataset();
    dataset2.setValue(900.0, "Row 1", "Column 1");
    dataset2.setValue(1000.0, "Row 1", "Column 2");
    plot.setDataset(dataset2);
    assertEquals(axis.getLowerBound(), 895.0, EPSILON);
    assertEquals(axis.getUpperBound(), 1005.0, EPSILON);
}
 

/**
 * A test to reproduce a bug in serialization: the domain and/or range
 * markers for a plot are not being serialized.
 */
@Test
public void testSerialization4() {

    XYSeriesCollection dataset = new XYSeriesCollection();
    JFreeChart chart = ChartFactory.createXYLineChart("Test Chart",
            "Domain Axis", "Range Axis", dataset);
    XYPlot plot = (XYPlot) chart.getPlot();
    plot.addDomainMarker(new ValueMarker(1.0), Layer.FOREGROUND);
    plot.addDomainMarker(new IntervalMarker(2.0, 3.0), Layer.BACKGROUND);
    plot.addRangeMarker(new ValueMarker(4.0), Layer.FOREGROUND);
    plot.addRangeMarker(new IntervalMarker(5.0, 6.0), Layer.BACKGROUND);
    JFreeChart chart2 = (JFreeChart) TestUtilities.serialised(chart);
    assertEquals(chart, chart2);
    try {
        chart2.createBufferedImage(300, 200);
    }
    catch (Exception e) {
        fail("No exception should be thrown.");
    }
}