Examples of org.jfree.data.xy.DefaultXYDataset

org.jfree.data.xy.DefaultXYDataset
A default implementation of the {@link XYDataset} interface that stores datavalues in arrays of double primitives. @since 1.0.2

    /**
     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization() {


        DefaultXYDataset d1 = new DefaultXYDataset();
        DefaultXYDataset d2 = null;


        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(d1);

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    /**
     * Some checks for the getSeriesKey(int) method.
     */
    public void testGetSeriesKey() {
        DefaultXYDataset d = createSampleDataset1();
        assertEquals("S1", d.getSeriesKey(0));
        assertEquals("S2", d.getSeriesKey(1));


        // check for series key out of bounds
        boolean pass = false;
        try {
            /*Comparable k =*/ d.getSeriesKey(-1);
        }
        catch (IllegalArgumentException e) {
            pass = true;
        }
        assertTrue(pass);


        pass = false;
        try {
            /*Comparable k =*/ d.getSeriesKey(2);
        }
        catch (IllegalArgumentException e) {
            pass = true;
        }
        assertTrue(pass);

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    /**
     * Some checks for the indexOf(Comparable) method.
     */
    public void testIndexOf() {
        DefaultXYDataset d = createSampleDataset1();
        assertEquals(0, d.indexOf("S1"));
        assertEquals(1, d.indexOf("S2"));
        assertEquals(-1, d.indexOf("Green Eggs and Ham"));
        assertEquals(-1, d.indexOf(null));
    }

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    /**
     * Some tests for the addSeries() method.
     */
    public void testAddSeries() {
        DefaultXYDataset d = new DefaultXYDataset();
        d.addSeries("S1", new double[][] {{1.0}, {2.0}});
        assertEquals(1, d.getSeriesCount());
        assertEquals("S1", d.getSeriesKey(0));


        // check that adding a series will overwrite the old series
        d.addSeries("S1", new double[][] {{11.0}, {12.0}});
        assertEquals(1, d.getSeriesCount());
        assertEquals(12.0, d.getYValue(0, 0), EPSILON);


        // check null key
        boolean pass = false;
        try
        {
          d.addSeries(null, new double[][] {{1.0}, {2.0}});
        }
        catch (IllegalArgumentException e)
        {
          pass = true;
        }

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     * Creates a sample dataset for testing.
     *
     * @return A sample dataset.
     */
    public DefaultXYDataset createSampleDataset1() {
        DefaultXYDataset d = new DefaultXYDataset();
        double[] x1 = new double[] {1.0, 2.0, 3.0};
        double[] y1 = new double[] {4.0, 5.0, 6.0};
        double[][] data1 = new double[][] {x1, y1};
        d.addSeries("S1", data1);


        double[] x2 = new double[] {1.0, 2.0, 3.0};
        double[] y2 = new double[] {4.0, 5.0, 6.0};
        double[][] data2 = new double[][] {x2, y2};
        d.addSeries("S2", data2);
        return d;
    }

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    /**
     * 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, PlotOrientation.VERTICAL, false, false, false);
        ChartPanel panel = new ChartPanel(chart);
        chart.addChangeListener(this);
        this.chartChangeEvents.clear();

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    /**
     * Checks that a call to the zoomInBoth() method generates just one
     * ChartChangeEvent.
     */
    public void test2502355_zoomInBoth() {
        DefaultXYDataset dataset = new DefaultXYDataset();
        JFreeChart chart = ChartFactory.createXYLineChart("TestChart", "X",
                "Y", dataset, PlotOrientation.VERTICAL, false, false, false);
        ChartPanel panel = new ChartPanel(chart);
        chart.addChangeListener(this);
        this.chartChangeEvents.clear();

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    /**
     * Checks that a call to the zoomOutBoth() method generates just one
     * ChartChangeEvent.
     */
    public void test2502355_zoomOutBoth() {
        DefaultXYDataset dataset = new DefaultXYDataset();
        JFreeChart chart = ChartFactory.createXYLineChart("TestChart", "X",
                "Y", dataset, PlotOrientation.VERTICAL, false, false, false);
        ChartPanel panel = new ChartPanel(chart);
        chart.addChangeListener(this);
        this.chartChangeEvents.clear();

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    /**
     * Checks that a call to the restoreAutoBounds() method generates just one
     * ChartChangeEvent.
     */
    public void test2502355_restoreAutoBounds() {
        DefaultXYDataset dataset = new DefaultXYDataset();
        JFreeChart chart = ChartFactory.createXYLineChart("TestChart", "X",
                "Y", dataset, PlotOrientation.VERTICAL, false, false, false);
        ChartPanel panel = new ChartPanel(chart);
        chart.addChangeListener(this);
        this.chartChangeEvents.clear();

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    /**
     * Checks that a call to the zoomInDomain() method, for a plot with more
     * than one domain axis, generates just one ChartChangeEvent.
     */
    public void test2502355_zoomInDomain() {
        DefaultXYDataset dataset = new DefaultXYDataset();
        JFreeChart chart = ChartFactory.createXYLineChart("TestChart", "X",
                "Y", dataset, PlotOrientation.VERTICAL, false, false, false);
        XYPlot plot = (XYPlot) chart.getPlot();
        plot.setDomainAxis(1, new NumberAxis("X2"));
        ChartPanel panel = new ChartPanel(chart);

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