Examples of org.jfree.data.xy.DefaultIntervalXYDataset

org.jfree.data.xy.DefaultIntervalXYDataset
A dataset that defines a range (interval) for both the x-values and the y-values. This implementation uses six arrays to store the x, start-x, end-x, y, start-y and end-y values.

An alternative implementation of the {@link IntervalXYDataset} interfaceis provided by the {@link XYIntervalSeriesCollection} class. @since 1.0.3


    /**
     * Some checks for the getStartYValue() method.
     */
    public void testGetStartYValue() {
        DefaultIntervalXYDataset d = createSampleDataset1();
        assertEquals(1.09, d.getStartYValue(0, 0), EPSILON);
        assertEquals(2.09, d.getStartYValue(0, 1), EPSILON);
        assertEquals(3.09, d.getStartYValue(0, 2), EPSILON);
        assertEquals(11.09, d.getStartYValue(1, 0), EPSILON);
        assertEquals(12.09, d.getStartYValue(1, 1), EPSILON);
        assertEquals(13.09, d.getStartYValue(1, 2), EPSILON);
    }

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    /**
     * Some checks for the getEndYValue() method.
     */
    public void testGetEndYValue() {
        DefaultIntervalXYDataset d = createSampleDataset1();
        assertEquals(1.11, d.getEndYValue(0, 0), EPSILON);
        assertEquals(2.11, d.getEndYValue(0, 1), EPSILON);
        assertEquals(3.11, d.getEndYValue(0, 2), EPSILON);
        assertEquals(11.11, d.getEndYValue(1, 0), EPSILON);
        assertEquals(12.11, d.getEndYValue(1, 1), EPSILON);
        assertEquals(13.11, d.getEndYValue(1, 2), EPSILON);
    }

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    /**
     * Confirm that the equals method can distinguish all the required fields.
     */
    public void testEquals() {
        DefaultIntervalXYDataset d1 = new DefaultIntervalXYDataset();
        DefaultIntervalXYDataset d2 = new DefaultIntervalXYDataset();
        assertTrue(d1.equals(d2));
        assertTrue(d2.equals(d1));


        d1 = createSampleDataset1();
        assertFalse(d1.equals(d2));
        d2 = createSampleDataset1();
        assertTrue(d1.equals(d2));

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    /**
     * Confirm that cloning works.
     */
    public void testCloning() {
        DefaultIntervalXYDataset d1 = new DefaultIntervalXYDataset();
        DefaultIntervalXYDataset d2 = null;
        try {
            d2 = (DefaultIntervalXYDataset) d1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(d1 != d2);
        assertTrue(d1.getClass() == d2.getClass());
        assertTrue(d1.equals(d2));


        // try a dataset with some content...
        d1 = createSampleDataset1();
        try {
            d2 = (DefaultIntervalXYDataset) d1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(d1 != d2);
        assertTrue(d1.getClass() == d2.getClass());
        assertTrue(d1.equals(d2));
    }

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    /**
     * Another test for cloning.
     */
    public void testCloning2() {
        DefaultIntervalXYDataset d1 = new DefaultIntervalXYDataset();
        double[] x1 = new double[] {1.0, 2.0, 3.0};
        double[] x1Start = new double[] {0.9, 1.9, 2.9};
        double[] x1End = new double[] {1.1, 2.1, 3.1};
        double[] y1 = new double[] {4.0, 5.0, 6.0};
        double[] y1Start = new double[] {1.09, 2.09, 3.09};
        double[] y1End = new double[] {1.11, 2.11, 3.11};
        double[][] data1 = new double[][] {x1, x1Start, x1End, y1, y1Start,
                y1End};
        d1.addSeries("S1", data1);
        DefaultIntervalXYDataset d2 = null;
        try {
            d2 = (DefaultIntervalXYDataset) d1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(d1 != d2);
        assertTrue(d1.getClass() == d2.getClass());
        assertTrue(d1.equals(d2));


        // check independence
        x1[0] = 111.1;
        assertFalse(d1.equals(d2));

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    /**
     * Verify that this class implements {@link PublicCloneable}.
     */
    public void testPublicCloneable() {
        DefaultIntervalXYDataset d1 = new DefaultIntervalXYDataset();
        assertTrue(d1 instanceof PublicCloneable);
    }

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


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


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

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    /**
     * Some checks for the indexOf(Comparable) method.
     */
    public void testIndexOf() {
        DefaultIntervalXYDataset 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() {
        DefaultIntervalXYDataset d = new DefaultIntervalXYDataset();
        d.addSeries("S1", new double[][] {{1.0}, {0.5}, {1.5}, {2.0}, {2.5},
                {1.5}});
        assertEquals(1, d.getSeriesCount());
        assertEquals("S1", d.getSeriesKey(0));


        // check that adding a series will overwrite the old series
        d.addSeries("S1", new double[][] {{1.1}, {0.6}, {1.6}, {2.1}, {2.6},
                {1.6}});
        assertEquals(1, d.getSeriesCount());
        assertEquals(2.1, d.getYValue(0, 0), EPSILON);


        // check null key
        boolean pass = false;
        try
        {
          d.addSeries(null, new double[][] {{1.1}, {0.6}, {1.6}, {2.1}, {2.6},
                  {1.6}});
        }
        catch (IllegalArgumentException e)
        {
          pass = true;

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     * Creates a sample dataset for testing.
     *
     * @return A sample dataset.
     */
    public DefaultIntervalXYDataset createSampleDataset1() {
        DefaultIntervalXYDataset d = new DefaultIntervalXYDataset();
        double[] x1 = new double[] {1.0, 2.0, 3.0};
        double[] x1Start = new double[] {0.9, 1.9, 2.9};
        double[] x1End = new double[] {1.1, 2.1, 3.1};
        double[] y1 = new double[] {4.0, 5.0, 6.0};
        double[] y1Start = new double[] {1.09, 2.09, 3.09};
        double[] y1End = new double[] {1.11, 2.11, 3.11};
        double[][] data1 = new double[][] {x1, x1Start, x1End, y1, y1Start,
                y1End};
        d.addSeries("S1", data1);


        double[] x2 = new double[] {11.0, 12.0, 13.0};
        double[] x2Start = new double[] {10.9, 11.9, 12.9};
        double[] x2End = new double[] {11.1, 12.1, 13.1};
        double[] y2 = new double[] {14.0, 15.0, 16.0};
        double[] y2Start = new double[] {11.09, 12.09, 13.09};
        double[] y2End = new double[] {11.11, 12.11, 13.11};
        double[][] data2 = new double[][] {x2, x2Start, x2End, y2, y2Start,
                y2End};
        d.addSeries("S2", data2);
        return d;
    }

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