Examples of org.jfree.chart.annotations.XYBoxAnnotation

org.jfree.chart.annotations.XYBoxAnnotation
A box annotation that can be placed on an {@link XYPlot}. The box coordinates are specified in data space.


    /**
     * Two objects that are equal are required to return the same hashCode. 
     */
    public void testHashCode() {
        XYBoxAnnotation a1 = new XYBoxAnnotation(
            1.0, 2.0, 3.0, 4.0, new BasicStroke(1.2f), Color.red, Color.blue
        );
        XYBoxAnnotation a2 = new XYBoxAnnotation(
            1.0, 2.0, 3.0, 4.0, new BasicStroke(1.2f), Color.red, Color.blue
        );
        assertTrue(a1.equals(a2));
        int h1 = a1.hashCode();
        int h2 = a2.hashCode();
        assertEquals(h1, h2);
    }

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    /**
     * Confirm that cloning works.
     */
    public void testCloning() {


        XYBoxAnnotation a1 = new XYBoxAnnotation(
            1.0, 2.0, 3.0, 4.0, new BasicStroke(1.2f), Color.red, Color.blue
        );
        XYBoxAnnotation a2 = null;
        try {
            a2 = (XYBoxAnnotation) a1.clone();
        }
        catch (CloneNotSupportedException e) {
            System.err.println("Failed to clone.");
        }
        assertTrue(a1 != a2);
        assertTrue(a1.getClass() == a2.getClass());
        assertTrue(a1.equals(a2));
    }

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


        XYBoxAnnotation a1 = new XYBoxAnnotation(
            1.0, 2.0, 3.0, 4.0, 
            new BasicStroke(1.2f), Color.red, Color.blue
        );
        XYBoxAnnotation a2 = null;


        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(a1);

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