org.jfree.chart.axis.NumberAxis Java Examples

/**
 * Creates a line chart (based on an {@link XYDataset}) with default
 * settings.
 *
 * @param title  the chart title (<code>null</code> permitted).
 * @param xAxisLabel  a label for the X-axis (<code>null</code> permitted).
 * @param yAxisLabel  a label for the Y-axis (<code>null</code> permitted).
 * @param dataset  the dataset for the chart (<code>null</code> permitted).
 * @param orientation  the plot orientation (horizontal or vertical)
 *                     (<code>null</code> NOT permitted).
 * @param legend  a flag specifying whether or not a legend is required.
 * @param tooltips  configure chart to generate tool tips?
 * @param urls  configure chart to generate URLs?
 *
 * @return The chart.
 */
public static JFreeChart createXYLineChart(String title, String xAxisLabel,
        String yAxisLabel, XYDataset dataset, PlotOrientation orientation,
        boolean legend, boolean tooltips, boolean urls) {

    ParamChecks.nullNotPermitted(orientation, "orientation");
    NumberAxis xAxis = new NumberAxis(xAxisLabel);
    xAxis.setAutoRangeIncludesZero(false);
    NumberAxis yAxis = new NumberAxis(yAxisLabel);
    XYItemRenderer renderer = new XYLineAndShapeRenderer(true, false);
    XYPlot plot = new XYPlot(dataset, xAxis, yAxis, renderer);
    plot.setOrientation(orientation);
    if (tooltips) {
        renderer.setBaseToolTipGenerator(new StandardXYToolTipGenerator());
    }
    if (urls) {
        renderer.setURLGenerator(new StandardXYURLGenerator());
    }

    JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT,
            plot, legend);
    currentTheme.apply(chart);
    return chart;

}
 

/**
 * Some checks for the paint lookup mechanism.
 */
@Test
public void testPaintLookup() {
    BarRenderer r = new BarRenderer();
    assertEquals(Color.blue, r.getBasePaint());

    // first check that autoPopulate==false works as expected
    r.setAutoPopulateSeriesPaint(false);
    assertEquals(Color.blue, r.lookupSeriesPaint(0));
    assertNull(r.getSeriesPaint(0));

    // now check autoPopulate==true
    r.setAutoPopulateSeriesPaint(true);
    /*CategoryPlot plot =*/ new CategoryPlot(null, new CategoryAxis(
            "Category"), new NumberAxis("Value"), r);
    assertEquals(DefaultDrawingSupplier.DEFAULT_PAINT_SEQUENCE[0],
            r.lookupSeriesPaint(0));
    assertNotNull(r.getSeriesPaint(0));
}
 

protected void configureChart(final JFreeChart chart) {
	chart.setBackgroundPaint(Color.white);
	final XYPlot plot = (XYPlot) chart.getPlot();
	plot.setBackgroundPaint(Color.lightGray);
	plot.setDomainGridlinePaint(Color.white);
	plot.setRangeGridlinePaint(Color.white);
	plot.setAxisOffset(new RectangleInsets(5.0, 5.0, 5.0, 5.0));

	final DateAxis dateAxis = (DateAxis) plot.getDomainAxis();
	final NumberAxis valueAxis = (NumberAxis) plot.getRangeAxis();

	dateAxis.setDateFormatOverride(new SimpleDateFormat("dd-MMM"));
	valueAxis.setAutoRangeIncludesZero(true);
	valueAxis.setUpperMargin(0.15);
	valueAxis.setLowerMargin(0.15);
}
 

/**
 * Creates a wind plot with default settings.
 *
 * @param title  the chart title (<code>null</code> permitted).
 * @param xAxisLabel  a label for the x-axis (<code>null</code> permitted).
 * @param yAxisLabel  a label for the y-axis (<code>null</code> permitted).
 * @param dataset  the dataset for the chart (<code>null</code> permitted).
 * @param legend  a flag that controls whether or not a legend is created.
 * @param tooltips  configure chart to generate tool tips?
 * @param urls  configure chart to generate URLs?
 *
 * @return A wind plot.
 *
 */
public static JFreeChart createWindPlot(String title, String xAxisLabel,
        String yAxisLabel, WindDataset dataset, boolean legend,
        boolean tooltips, boolean urls) {

    ValueAxis xAxis = new DateAxis(xAxisLabel);
    ValueAxis yAxis = new NumberAxis(yAxisLabel);
    yAxis.setRange(-12.0, 12.0);

    WindItemRenderer renderer = new WindItemRenderer();
    if (tooltips) {
        renderer.setBaseToolTipGenerator(new StandardXYToolTipGenerator());
    }
    if (urls) {
        renderer.setURLGenerator(new StandardXYURLGenerator());
    }
    XYPlot plot = new XYPlot(dataset, xAxis, yAxis, renderer);
    JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT,
            plot, legend);
    currentTheme.apply(chart);
    return chart;

}
 

/**
 * Creates a polar plot for the specified dataset (x-values interpreted as 
 * angles in degrees).  The chart object returned by this method uses a 
 * {@link PolarPlot} instance as the plot, with a {@link NumberAxis} for 
 * the radial axis.
 *
 * @param title  the chart title (<code>null</code> permitted).
 * @param dataset  the dataset (<code>null</code> permitted).
 * @param legend  legend required?
 * @param tooltips  tooltips required?
 * @param urls  URLs required?
 *
 * @return A chart.
 */
public static JFreeChart createPolarChart(String title,
                                          XYDataset dataset,
                                          boolean legend,
                                          boolean tooltips,
                                          boolean urls) {

    PolarPlot plot = new PolarPlot();
    plot.setDataset(dataset);
    NumberAxis rangeAxis = new NumberAxis();
    rangeAxis.setAxisLineVisible(false);
    rangeAxis.setTickMarksVisible(false);
    rangeAxis.setTickLabelInsets(new RectangleInsets(0.0, 0.0, 0.0, 0.0));
    plot.setAxis(rangeAxis);
    plot.setRenderer(new DefaultPolarItemRenderer());
    JFreeChart chart = new JFreeChart(
            title, JFreeChart.DEFAULT_TITLE_FONT, plot, legend);
    return chart;

}
 

private JFreeChart createCombinedChart() {
      // create subplot 1...
      final XYDataset data1 = createDataset();
      final XYItemRenderer renderer1 = new StandardXYItemRenderer();
      final NumberAxis rangeAxis1 = new NumberAxis("Range 1");
      final XYPlot subplot1 = new XYPlot(data1, null, rangeAxis1, renderer1);
      
      // create subplot 2...
      final XYDataset data2 = createDataset();
      final XYItemRenderer renderer2 = new StandardXYItemRenderer();
      final NumberAxis rangeAxis2 = new NumberAxis("Range 2");
      final XYPlot subplot2 = new XYPlot(data2, null, rangeAxis2, renderer2);

      // parent plot...
      final CombinedDomainXYPlot plot = new CombinedDomainXYPlot(new NumberAxis("Domain"));
      plot.setGap(10.0);
      
      // add the subplots...
      plot.add(subplot1, 1);
      plot.add(subplot2, 1);
      plot.setOrientation(PlotOrientation.VERTICAL);

      // return a new chart containing the overlaid plot...
      return new JFreeChart("CombinedDomainXYPlot Demo",
                            JFreeChart.DEFAULT_TITLE_FONT, plot, true);
}
 

/**
 * Creates a new thermometer plot, using default attributes where necessary.
 *
 * @param dataset  the data set.
 */
public ThermometerPlot(ValueDataset dataset) {

    super();

    this.padding = new RectangleInsets(UnitType.RELATIVE, 0.05, 0.05, 0.05,
            0.05);
    this.dataset = dataset;
    if (dataset != null) {
        dataset.addChangeListener(this);
    }
    NumberAxis axis = new NumberAxis(null);
    axis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
    axis.setAxisLineVisible(false);
    axis.setPlot(this);
    axis.addChangeListener(this);
    this.rangeAxis = axis;
    setAxisRange();
}
 

@Test 
public void testRendererIndices() {
    XYDataset dataset = new XYSeriesCollection();
    NumberAxis xAxis = new NumberAxis("X");
    NumberAxis yAxis = new NumberAxis("Y");
    XYItemRenderer renderer = new DefaultXYItemRenderer();
    XYPlot plot = new XYPlot(dataset, xAxis, yAxis, renderer);
    
    assertEquals(renderer, plot.getRenderer(0));
    
    // we should be able to give a renderer an arbitrary index
    XYLineAndShapeRenderer renderer2 = new XYLineAndShapeRenderer();
    plot.setRenderer(20, renderer2);
    assertEquals(2, plot.getRendererCount());
    assertEquals(renderer2, plot.getRenderer(20));
    
    assertEquals(20, plot.getIndexOf(renderer2));
}
 

@Test
public void testAxisIndices() {
    XYDataset dataset = new XYSeriesCollection();
    NumberAxis xAxis = new NumberAxis("X");
    NumberAxis yAxis = new NumberAxis("Y");
    XYItemRenderer renderer = new DefaultXYItemRenderer();
    XYPlot plot = new XYPlot(dataset, xAxis, yAxis, renderer);
    assertEquals(xAxis, plot.getDomainAxis(0));        
    assertEquals(yAxis, plot.getRangeAxis(0)); 
    
    NumberAxis xAxis2 = new NumberAxis("X2");
    plot.setDomainAxis(99, xAxis2);
    assertEquals(xAxis2, plot.getDomainAxis(99));
    
    NumberAxis yAxis2 = new NumberAxis("Y2");
    plot.setRangeAxis(99, yAxis2);
    assertEquals(yAxis2, plot.getRangeAxis(99));
}
 

/**
 * Creates a polar plot for the specified dataset (x-values interpreted as
 * angles in degrees).  The chart object returned by this method uses a
 * {@link PolarPlot} instance as the plot, with a {@link NumberAxis} for
 * the radial axis.
 *
 * @param title  the chart title (<code>null</code> permitted).
 * @param dataset  the dataset (<code>null</code> permitted).
 * @param legend  legend required?
 * @param tooltips  tooltips required?
 * @param urls  URLs required?
 *
 * @return A chart.
 */
public static JFreeChart createPolarChart(String title, XYDataset dataset,
        boolean legend, boolean tooltips, boolean urls) {

    PolarPlot plot = new PolarPlot();
    plot.setDataset(dataset);
    NumberAxis rangeAxis = new NumberAxis();
    rangeAxis.setAxisLineVisible(false);
    rangeAxis.setTickMarksVisible(false);
    rangeAxis.setTickLabelInsets(new RectangleInsets(0.0, 0.0, 0.0, 0.0));
    plot.setAxis(rangeAxis);
    plot.setRenderer(new DefaultPolarItemRenderer());
    JFreeChart chart = new JFreeChart(
            title, JFreeChart.DEFAULT_TITLE_FONT, plot, legend);
    currentTheme.apply(chart);
    return chart;

}
 

/**
 * Check that only one chart change event is generated by a change to a
 * subplot.
 */
public void testNotification() {
    CombinedRangeCategoryPlot plot = createPlot();
    JFreeChart chart = new JFreeChart(plot);
    chart.addChangeListener(this);
    CategoryPlot subplot1 = (CategoryPlot) plot.getSubplots().get(0);
    NumberAxis yAxis = (NumberAxis) subplot1.getRangeAxis();
    yAxis.setAutoRangeIncludesZero(!yAxis.getAutoRangeIncludesZero());
    assertEquals(1, this.events.size());

    // a redraw should NOT trigger another change event
    BufferedImage image = new BufferedImage(200, 100,
            BufferedImage.TYPE_INT_RGB);
    Graphics2D g2 = image.createGraphics();
    this.events.clear();
    chart.draw(g2, new Rectangle2D.Double(0.0, 0.0, 200.0, 100.0));
    assertTrue(this.events.isEmpty());
}
 

/**
 * Creates a line chart (based on an {@link XYDataset}) with default
 * settings.
 *
 * @param title  the chart title (<code>null</code> permitted).
 * @param xAxisLabel  a label for the X-axis (<code>null</code> permitted).
 * @param yAxisLabel  a label for the Y-axis (<code>null</code> permitted).
 * @param dataset  the dataset for the chart (<code>null</code> permitted).
 * @param orientation  the plot orientation (horizontal or vertical)
 *                     (<code>null</code> NOT permitted).
 * @param legend  a flag specifying whether or not a legend is required.
 * @param tooltips  configure chart to generate tool tips?
 * @param urls  configure chart to generate URLs?
 *
 * @return The chart.
 */
public static JFreeChart createXYLineChart(String title, String xAxisLabel,
        String yAxisLabel, XYDataset dataset, PlotOrientation orientation,
        boolean legend, boolean tooltips, boolean urls) {

    ParamChecks.nullNotPermitted(orientation, "orientation");
    NumberAxis xAxis = new NumberAxis(xAxisLabel);
    xAxis.setAutoRangeIncludesZero(false);
    NumberAxis yAxis = new NumberAxis(yAxisLabel);
    XYItemRenderer renderer = new XYLineAndShapeRenderer(true, false);
    XYPlot plot = new XYPlot(dataset, xAxis, yAxis, renderer);
    plot.setOrientation(orientation);
    if (tooltips) {
        renderer.setBaseToolTipGenerator(new StandardXYToolTipGenerator());
    }
    if (urls) {
        renderer.setURLGenerator(new StandardXYURLGenerator());
    }

    JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT,
            plot, legend);
    currentTheme.apply(chart);
    return chart;

}
 

private JFreeChart createCombinedChart() {
  // create subplot 1...
  final XYDataset data1 = createDataset();
  final XYItemRenderer renderer1 = new StandardXYItemRenderer();
  final NumberAxis rangeAxis1 = new NumberAxis("Range 1");
  final XYPlot subplot1 = new XYPlot(data1, null, rangeAxis1, renderer1);

  // create subplot 2...
  final XYDataset data2 = createDataset();
  final XYItemRenderer renderer2 = new StandardXYItemRenderer();
  final NumberAxis rangeAxis2 = new NumberAxis("Range 2");
  final XYPlot subplot2 = new XYPlot(data2, null, rangeAxis2, renderer2);

  // parent plot...
  final CombinedDomainXYPlot plot = new CombinedDomainXYPlot(new NumberAxis("Domain"));
  plot.setGap(10.0);

  // add the subplots...
  plot.add(subplot1, 1);
  plot.add(subplot2, 1);
  plot.setOrientation(PlotOrientation.VERTICAL);

  // return a new chart containing the overlaid plot...
  return new JFreeChart("CombinedDomainXYPlot Demo", JFreeChart.DEFAULT_TITLE_FONT, plot, true);
}
 

/**
 * Some checks for the getDomainAxisIndex() method.
 */
public void testGetDomainAxisIndex() {
    CategoryAxis domainAxis1 = new CategoryAxis("X1");
    CategoryAxis domainAxis2 = new CategoryAxis("X2");
    NumberAxis rangeAxis1 = new NumberAxis("Y1");
    CategoryPlot plot = new CategoryPlot(null, domainAxis1, rangeAxis1,
            null);
    assertEquals(0, plot.getDomainAxisIndex(domainAxis1));
    assertEquals(-1, plot.getDomainAxisIndex(domainAxis2));
    plot.setDomainAxis(1, domainAxis2);
    assertEquals(1, plot.getDomainAxisIndex(domainAxis2));
    assertEquals(-1, plot.getDomainAxisIndex(new CategoryAxis("X2")));
    boolean pass = false;
    try {
        plot.getDomainAxisIndex(null);
    }
    catch (IllegalArgumentException e) {
        pass = true;
    }
    assertTrue(pass);
}
 

/**
 * Some checks for the outline paint lookup mechanism.
 */
public void testOutlinePaintLookup() {
    BarRenderer r = new BarRenderer();
    assertEquals(Color.gray, r.getBaseOutlinePaint());

    // first check that autoPopulate==false works as expected
    r.setAutoPopulateSeriesOutlinePaint(false);
    assertEquals(Color.gray, r.lookupSeriesOutlinePaint(0));
    assertNull(r.getSeriesOutlinePaint(0));

    // now check autoPopulate==true
    r.setAutoPopulateSeriesOutlinePaint(true);
    /*CategoryPlot plot =*/ new CategoryPlot(null, new CategoryAxis(
            "Category"), new NumberAxis("Value"), r);
    assertEquals(DefaultDrawingSupplier.DEFAULT_OUTLINE_PAINT_SEQUENCE[0],
            r.lookupSeriesOutlinePaint(0));
    assertNotNull(r.getSeriesOutlinePaint(0));
}
 

/**
 * Check that only one chart change event is generated by a change to a
 * subplot.
 */
@Test
public void testNotification() {
    CombinedRangeXYPlot plot = createPlot();
    JFreeChart chart = new JFreeChart(plot);
    chart.addChangeListener(this);
    XYPlot subplot1 = (XYPlot) plot.getSubplots().get(0);
    NumberAxis xAxis = (NumberAxis) subplot1.getDomainAxis();
    xAxis.setAutoRangeIncludesZero(!xAxis.getAutoRangeIncludesZero());
    assertEquals(1, this.events.size());

    // a redraw should NOT trigger another change event
    BufferedImage image = new BufferedImage(200, 100,
            BufferedImage.TYPE_INT_RGB);
    Graphics2D g2 = image.createGraphics();
    this.events.clear();
    chart.draw(g2, new Rectangle2D.Double(0.0, 0.0, 200.0, 100.0));
    assertTrue(this.events.isEmpty());
}
 

@Test
public void testRangeMarkerIndices() {
    XYDataset dataset = new XYSeriesCollection();
    NumberAxis xAxis = new NumberAxis("X");
    NumberAxis yAxis = new NumberAxis("Y");
    XYItemRenderer renderer = new DefaultXYItemRenderer();
    XYPlot plot = new XYPlot(dataset, xAxis, yAxis, renderer);
    
    // add a second dataset, plotted against a second axis
    XYSeriesCollection dataset2 = new XYSeriesCollection();
    dataset2.addSeries(new XYSeries("Series in dataset 2"));
    plot.setDataset(99, dataset);    
    NumberAxis yAxis2 = new NumberAxis("Y2");
    plot.setRangeAxis(1, yAxis2);
    XYLineAndShapeRenderer renderer2 = new XYLineAndShapeRenderer();
    plot.setRenderer(99, renderer2);
    plot.mapDatasetToRangeAxis(99, 1);
    
    ValueMarker yMarker1 = new ValueMarker(123);
    plot.addRangeMarker(99, yMarker1, Layer.FOREGROUND);
    assertTrue(plot.getRangeMarkers(99, Layer.FOREGROUND).contains(yMarker1));
}
 

/**
 * Draws a chart where the dataset contains a null min outlier value.
 */
@Test
public void testDrawWithNullMinOutlier() {
    boolean success;
    try {
        DefaultBoxAndWhiskerCategoryDataset dataset
                = new DefaultBoxAndWhiskerCategoryDataset();
        dataset.add(new BoxAndWhiskerItem(new Double(1.0), new Double(2.0),
                new Double(3.0), new Double(4.0), new Double(0.5),
                new Double(4.5), null, new Double(5.5),
                null), "S1", "C1");
        CategoryPlot plot = new CategoryPlot(dataset,
                new CategoryAxis("Category"), new NumberAxis("Value"),
                new BoxAndWhiskerRenderer());
        ChartRenderingInfo info = new ChartRenderingInfo();
        JFreeChart chart = new JFreeChart(plot);
        /* BufferedImage image = */ chart.createBufferedImage(300, 200,
                info);
        success = true;
    }
    catch (Exception e) {
        success = false;
    }
    assertTrue(success);
}
 

/**
 * Draws the chart with a <code>null</code> info object to make sure that 
 * no exceptions are thrown (particularly by code in the renderer).
 */
public void testDrawWithNullInfo() {
    boolean success = false;
    try {
        DefaultCategoryDataset dataset = new DefaultCategoryDataset();
        dataset.addValue(1.0, "S1", "C1");
        CategoryPlot plot = new CategoryPlot(dataset, 
                new CategoryAxis("Category"), new NumberAxis("Value"), 
                new LevelRenderer());
        JFreeChart chart = new JFreeChart(plot);
        /* BufferedImage image = */ chart.createBufferedImage(300, 200, 
                null);
        success = true;
    }
    catch (NullPointerException e) {
        e.printStackTrace();
        success = false;
    }
    assertTrue(success);
}
 

/**
 * Draws the chart with a <code>null</code> info object to make sure that
 * no exceptions are thrown (particularly by code in the renderer).
 */
@Test
public void testDrawWithNullInfo() {
    try {
        DefaultStatisticalCategoryDataset dataset
            = new DefaultStatisticalCategoryDataset();
        dataset.add(1.0, 2.0, "S1", "C1");
        dataset.add(3.0, 4.0, "S1", "C2");
        CategoryPlot plot = new CategoryPlot(dataset,
                new CategoryAxis("Category"), new NumberAxis("Value"),
                new StatisticalLineAndShapeRenderer());
        JFreeChart chart = new JFreeChart(plot);
        /* BufferedImage image = */ chart.createBufferedImage(300, 200,
                null);
    }
    catch (NullPointerException e) {
        fail("No exception should be thrown.");
    }
}
 

/**
 * Some checks for the paint lookup mechanism.
 */
public void testPaintLookup() {
    BarRenderer r = new BarRenderer();
    assertEquals(Color.blue, r.getBasePaint());
    
    // first check that autoPopulate==false works as expected
    r.setAutoPopulateSeriesPaint(false);
    assertEquals(Color.blue, r.lookupSeriesPaint(0));
    assertNull(r.getSeriesPaint(0));
    
    // now check autoPopulate==true
    r.setAutoPopulateSeriesPaint(true);
    /*CategoryPlot plot =*/ new CategoryPlot(null, new CategoryAxis(
            "Category"), new NumberAxis("Value"), r);
    assertEquals(DefaultDrawingSupplier.DEFAULT_PAINT_SEQUENCE[0], 
            r.lookupSeriesPaint(0));
    assertNotNull(r.getSeriesPaint(0));
}
 

/**
 * Tests cloning for a plot where the fixed legend items have been
 * specified.
 */
@Test
public void testCloning3() throws CloneNotSupportedException {
    XYPlot p1 = new XYPlot(null, new NumberAxis("Domain Axis"),
            new NumberAxis("Range Axis"), new StandardXYItemRenderer());
    LegendItemCollection c1 = new LegendItemCollection();
    p1.setFixedLegendItems(c1);
    XYPlot p2 = (XYPlot) p1.clone();
    assertTrue(p1 != p2);
    assertTrue(p1.getClass() == p2.getClass());
    assertTrue(p1.equals(p2));

    // verify independence of fixed legend item collection
    c1.add(new LegendItem("X"));
    assertFalse(p1.equals(p2));
}
 

/**
 * Some checks for the fill paint lookup mechanism.
 */
@Test
public void testFillPaintLookup() {
    BarRenderer r = new BarRenderer();
    assertEquals(Color.white, r.getBaseFillPaint());

    // first check that autoPopulate==false works as expected
    r.setAutoPopulateSeriesFillPaint(false);
    assertEquals(Color.white, r.lookupSeriesFillPaint(0));
    assertNull(r.getSeriesFillPaint(0));

    // now check autoPopulate==true
    r.setAutoPopulateSeriesFillPaint(true);
    /*CategoryPlot plot =*/ new CategoryPlot(null, new CategoryAxis(
            "Category"), new NumberAxis("Value"), r);
    assertEquals(DefaultDrawingSupplier.DEFAULT_FILL_PAINT_SEQUENCE[0],
            r.lookupSeriesFillPaint(0));
    assertNotNull(r.getSeriesFillPaint(0));
}
 

/**
 * Check that the renderer is calculating the range bounds correctly.
 */
@Test
public void testFindRangeBounds() {
    TableXYDataset dataset
            = RendererXYPackageUtils.createTestTableXYDataset();
    JFreeChart chart = ChartFactory.createStackedXYAreaChart(
            "Test Chart", "X", "Y", dataset, PlotOrientation.VERTICAL,
            false, false, false);
    XYPlot plot = (XYPlot) chart.getPlot();
    StackedXYAreaRenderer2 renderer = new StackedXYAreaRenderer2();
    plot.setRenderer(renderer);
    NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
    Range bounds = rangeAxis.getRange();
    assertTrue(bounds.contains(6.0));
    assertTrue(bounds.contains(8.0));

    // try null argument
    assertNull(renderer.findRangeBounds(null));

    // try empty dataset
    assertNull(renderer.findRangeBounds(new DefaultTableXYDataset()));
}
 

/**
 * A check for the datasetIndex and seriesIndex fields in the LegendItem
 * returned by the getLegendItem() method.
 */
@Test
public void testGetLegendItemSeriesIndex() {
    DefaultCategoryDataset dataset0 = new DefaultCategoryDataset();
    dataset0.addValue(21.0, "R1", "C1");
    dataset0.addValue(22.0, "R2", "C1");
    DefaultCategoryDataset dataset1 = new DefaultCategoryDataset();
    dataset1.addValue(23.0, "R3", "C1");
    dataset1.addValue(24.0, "R4", "C1");
    dataset1.addValue(25.0, "R5", "C1");
    LineAndShapeRenderer r = new LineAndShapeRenderer();
    CategoryPlot plot = new CategoryPlot(dataset0, new CategoryAxis("x"),
            new NumberAxis("y"), r);
    plot.setDataset(1, dataset1);
    /*JFreeChart chart =*/ new JFreeChart(plot);
    LegendItem li = r.getLegendItem(1, 2);
    assertEquals("R5", li.getLabel());
    assertEquals(1, li.getDatasetIndex());
    assertEquals(2, li.getSeriesIndex());
}
 

/**
 * 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));
}
 

/**
 * Creates an area chart with default settings.  The chart object returned
 * by this method uses a {@link CategoryPlot} instance as the plot, with a
 * {@link CategoryAxis} for the domain axis, a {@link NumberAxis} as the
 * range axis, and an {@link AreaRenderer} as the renderer.
 *
 * @param title  the chart title (<code>null</code> permitted).
 * @param categoryAxisLabel  the label for the category axis
 *                           (<code>null</code> permitted).
 * @param valueAxisLabel  the label for the value axis (<code>null</code>
 *                        permitted).
 * @param dataset  the dataset for the chart (<code>null</code> permitted).
 * @param legend  a flag specifying whether or not a legend is required.
 *
 * @return An area chart.
 */
public static JFreeChart createAreaChart(String title,
        String categoryAxisLabel, String valueAxisLabel,
        CategoryDataset dataset, boolean legend) {

    CategoryAxis categoryAxis = new CategoryAxis(categoryAxisLabel);
    categoryAxis.setCategoryMargin(0.0);
    ValueAxis valueAxis = new NumberAxis(valueAxisLabel);
    AreaRenderer renderer = new AreaRenderer();
    renderer.setBaseToolTipGenerator(
            new StandardCategoryToolTipGenerator());
    CategoryPlot plot = new CategoryPlot(dataset, categoryAxis, valueAxis,
            renderer);
    JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT,
            plot, legend);
    currentTheme.apply(chart);
    return chart;

}
 

@Test
public void testMapDatasetToDomainAxis() {
    XYDataset dataset = new XYSeriesCollection();
    NumberAxis xAxis = new NumberAxis("X");
    NumberAxis yAxis = new NumberAxis("Y");
    XYItemRenderer renderer = new DefaultXYItemRenderer();
    XYPlot plot = new XYPlot(dataset, xAxis, yAxis, renderer);

    NumberAxis xAxis2 = new NumberAxis("X2");
    plot.setDomainAxis(11, xAxis2);
    
    // add a second dataset
    XYSeriesCollection dataset2 = new XYSeriesCollection();
    dataset2.addSeries(new XYSeries("Series in dataset 2"));
    plot.setDataset(99, dataset);    
    
    assertEquals(xAxis, plot.getDomainAxisForDataset(99));

    // now map the dataset to the second xAxis
    plot.mapDatasetToDomainAxis(99, 11);
    assertEquals(xAxis2, plot.getDomainAxisForDataset(99));
}
 

/**
 * Creates a sample plot.
 *
 * @return A plot.
 */
private CombinedRangeCategoryPlot createPlot() {
    CategoryDataset dataset1 = createDataset1();
    CategoryAxis catAxis1 = new CategoryAxis("Category");
    LineAndShapeRenderer renderer1 = new LineAndShapeRenderer();
    renderer1.setBaseToolTipGenerator(
            new StandardCategoryToolTipGenerator());
    CategoryPlot subplot1 = new CategoryPlot(dataset1, catAxis1, null,
            renderer1);
    subplot1.setDomainGridlinesVisible(true);

    CategoryDataset dataset2 = createDataset2();
    CategoryAxis catAxis2 = new CategoryAxis("Category");
    BarRenderer renderer2 = new BarRenderer();
    renderer2.setBaseToolTipGenerator(
            new StandardCategoryToolTipGenerator());
    CategoryPlot subplot2 = new CategoryPlot(dataset2, catAxis2, null,
            renderer2);
    subplot2.setDomainGridlinesVisible(true);

    NumberAxis rangeAxis = new NumberAxis("Value");
    CombinedRangeCategoryPlot plot = new CombinedRangeCategoryPlot(
            rangeAxis);
    plot.add(subplot1, 2);
    plot.add(subplot2, 1);
    return plot;
}
 

/**
 * A check for the datasetIndex and seriesIndex fields in the LegendItem
 * returned by the getLegendItem() method.
 */
public void testGetLegendItemSeriesIndex() {
    XYSeriesCollection d1 = new XYSeriesCollection();
    XYSeries s1 = new XYSeries("S1");
    s1.add(1.0, 1.1);
    XYSeries s2 = new XYSeries("S2");
    s2.add(1.0, 1.1);
    d1.addSeries(s1);
    d1.addSeries(s2);
    
    XYSeriesCollection d2 = new XYSeriesCollection();
    XYSeries s3 = new XYSeries("S3");
    s3.add(1.0, 1.1);
    XYSeries s4 = new XYSeries("S4");
    s4.add(1.0, 1.1);
    XYSeries s5 = new XYSeries("S5");
    s5.add(1.0, 1.1);
    d2.addSeries(s3);
    d2.addSeries(s4);
    d2.addSeries(s5);

    XYDotRenderer r = new XYDotRenderer();
    XYPlot plot = new XYPlot(d1, new NumberAxis("x"),
            new NumberAxis("y"), r);
    plot.setDataset(1, d2);
    /*JFreeChart chart =*/ new JFreeChart(plot);
    LegendItem li = r.getLegendItem(1, 2);
    assertEquals("S5", li.getLabel());
    assertEquals(1, li.getDatasetIndex());
    assertEquals(2, li.getSeriesIndex());
}