Examples of org.jfree.chart.renderer.xy.XYStepAreaRenderer

org.jfree.chart.renderer.xy.XYStepAreaRenderer
A step chart renderer that fills the area between the step and the x-axis. The example shown here is generated by the XYStepAreaRendererDemo1.java program included in the JFreeChart demo collection:

            s2.add(15.0, 9.5);
            s2.add(20.0, 3.5);
            dataset.addSeries(s2);
            XYPlot plot = new XYPlot(dataset,
                    new NumberAxis("X"), new NumberAxis("Y"),
                    new XYStepAreaRenderer());
            JFreeChart chart = new JFreeChart(plot);
            /* BufferedImage image = */ chart.createBufferedImage(300, 200,
                    null);
            success = true;
        }

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    /**
     * Check that the equals() method distinguishes all fields.
     */
    public void testEquals() {
        XYStepAreaRenderer r1 = new XYStepAreaRenderer();
        XYStepAreaRenderer r2 = new XYStepAreaRenderer();
        assertEquals(r1, r2);


        r1.setOutline(true);
        assertFalse(r1.equals(r2));
        r2.setOutline(true);
        assertTrue(r1.equals(r2));


        r1.setShapesVisible(true);
        assertFalse(r1.equals(r2));
        r2.setShapesVisible(true);
        assertTrue(r1.equals(r2));


        r1.setShapesFilled(true);
        assertFalse(r1.equals(r2));
        r2.setShapesFilled(true);
        assertTrue(r1.equals(r2));


        r1.setPlotArea(false);
        assertFalse(r1.equals(r2));
        r2.setPlotArea(false);
        assertTrue(r1.equals(r2));


        r1.setRangeBase(-1.0);
        assertFalse(r1.equals(r2));
        r2.setRangeBase(-1.0);
        assertTrue(r1.equals(r2));
    }

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    /**
     * Two objects that are equal are required to return the same hashCode.
     */
    public void testHashcode() {
        XYStepAreaRenderer r1 = new XYStepAreaRenderer();
        XYStepAreaRenderer r2 = new XYStepAreaRenderer();
        assertTrue(r1.equals(r2));
        int h1 = r1.hashCode();
        int h2 = r2.hashCode();
        assertEquals(h1, h2);
    }

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    /**
     * Confirm that cloning works.
     */
    public void testCloning() {
        XYStepAreaRenderer r1 = new XYStepAreaRenderer();
        XYStepAreaRenderer r2 = null;
        try {
            r2 = (XYStepAreaRenderer) r1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(r1 != r2);
        assertTrue(r1.getClass() == r2.getClass());
        assertTrue(r1.equals(r2));
    }

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    /**
     * Verify that this class implements {@link PublicCloneable}.
     */
    public void testPublicCloneable() {
        XYStepAreaRenderer r1 = new XYStepAreaRenderer();
        assertTrue(r1 instanceof PublicCloneable);
    }

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


        XYStepAreaRenderer r1 = new XYStepAreaRenderer();
        XYStepAreaRenderer r2 = null;


        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(r1);

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            s2.add(15.0, 9.5);
            s2.add(20.0, 3.5);
            dataset.addSeries(s2);
            XYPlot plot = new XYPlot(dataset,
                    new NumberAxis("X"), new NumberAxis("Y"),
                    new XYStepAreaRenderer());
            JFreeChart chart = new JFreeChart(plot);
            /* BufferedImage image = */ chart.createBufferedImage(300, 200,
                    null);
            success = true;
        }

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        break;
      case STEP_CHART_TYPE:
        renderer = new XYStepRenderer();
        break;
      case STEP_AREA_CHART_TYPE:
        renderer = new XYStepAreaRenderer();
        break;
      case DIFFERENCE_CHART_TYPE:
        renderer = new XYDifferenceRenderer();
        break;
      case DOT_CHART_TYPE:

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        break;
      case STEP_CHART_TYPE:
        renderer = new XYStepRenderer();
        break;
      case STEP_AREA_CHART_TYPE:
        renderer = new XYStepAreaRenderer();
        break;
      case DIFFERENCE_CHART_TYPE:
        renderer = new XYDifferenceRenderer();
        break;
      case DOT_CHART_TYPE:

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        XYURLGenerator urlGenerator = null;
        if (urls) {
            urlGenerator = new StandardXYURLGenerator();
        }
        XYItemRenderer renderer = new XYStepAreaRenderer(
                XYStepAreaRenderer.AREA_AND_SHAPES, toolTipGenerator,
                urlGenerator);


        XYPlot plot = new XYPlot(dataset, xAxis, yAxis, null);
        plot.setRenderer(renderer);

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