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

org.jfree.chart.renderer.xy.XYErrorRenderer
A line and shape renderer that can also display x and/or y-error values. This renderer expects an {@link IntervalXYDataset}, otherwise it reverts to the behaviour of the super class. The example shown here is generated by the XYErrorRendererDemo1.java program included in the JFreeChart demo collection:

@since 1.0.3

    if (forecaster instanceof WekaForecaster && hasConfidenceIntervals) {
      double confPerc = ((WekaForecaster) forecaster).getConfidenceLevel() * 100.0;
      title += " [" + Utils.doubleToString(confPerc, 0) + "% conf. intervals]";
    }


    XYErrorRenderer renderer = new XYErrorRenderer();
    renderer.setBaseLinesVisible(true);
    renderer.setDrawXError(false);
    renderer.setDrawYError(true);
    // renderer.setShapesFilled(true);
    XYPlot plot = new XYPlot(xyDataset, timeAxis, valueAxis, renderer);
    JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT,
        plot, true);
    chart.setBackgroundPaint(java.awt.Color.white);

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    if (forecaster instanceof WekaForecaster && hasConfidenceIntervals) {
      double confPerc = ((WekaForecaster) forecaster).getConfidenceLevel() * 100.0;
      title += " [" + Utils.doubleToString(confPerc, 0) + "% conf. intervals]";
    }


    XYErrorRenderer renderer = new XYErrorRenderer();
    renderer.setBaseLinesVisible(true);
    // renderer.setShapesFilled(true);
    XYPlot plot = new XYPlot(xyDataset, timeAxis, valueAxis, renderer);
    JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT,
        plot, true);
    chart.setBackgroundPaint(java.awt.Color.white);

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    if (forecaster instanceof WekaForecaster && hasConfidenceIntervals) {
      double confPerc = ((WekaForecaster) forecaster).getConfidenceLevel() * 100.0;
      title += " [" + Utils.doubleToString(confPerc, 0) + "% conf. intervals]";
    }


    XYErrorRenderer renderer = new XYErrorRenderer();


    // renderer.setShapesFilled(true);
    XYPlot plot = new XYPlot(xyDataset, timeAxis, valueAxis, renderer);
    // renderer = (XYErrorRenderer)plot.getRenderer();
    if (history != null) {
      for (String targetName : targetNames) {
        XYIntervalSeries predSeries = null;
        int predIndex = xyDataset.indexOf(targetName + "-predicted");
        predSeries = xyDataset.getSeries(predIndex);


        XYIntervalSeries actualSeries = null;
        int actualIndex = xyDataset.indexOf(targetName);
        actualSeries = xyDataset.getSeries(actualIndex);


        if (actualSeries != null && predSeries != null) {
          // match the color of the actual series
          java.awt.Paint actualPaint = renderer.lookupSeriesPaint(actualIndex);
          renderer.setSeriesPaint(predIndex, actualPaint);


          // now set the line style to dashed
          BasicStroke dashed = new BasicStroke(1.5f, BasicStroke.CAP_BUTT,
              BasicStroke.JOIN_MITER, 10.0f, new float[] { 5.0f }, 0.0f);


          renderer.setSeriesStroke(predIndex, dashed);
        }
      }
    }


    renderer.setBaseLinesVisible(true);
    renderer.setDrawXError(false);
    renderer.setDrawYError(true);


    JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT,
        plot, true);
    chart.setBackgroundPaint(java.awt.Color.white);
    TextTitle chartTitle = chart.getTitle();

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


        // drawXError
        r1.setDrawXError(false);
        assertFalse(r1.equals(r2));
        r2.setDrawXError(false);
        assertTrue(r1.equals(r2));


        // drawYError
        r1.setDrawYError(false);
        assertFalse(r1.equals(r2));
        r2.setDrawYError(false);
        assertTrue(r1.equals(r2));


        // capLength
        r1.setCapLength(9.0);
        assertFalse(r1.equals(r2));
        r2.setCapLength(9.0);
        assertTrue(r1.equals(r2));


        // errorPaint
        r1.setErrorPaint(new GradientPaint(1.0f, 2.0f, Color.red, 3.0f, 4.0f,
                Color.green));
        assertFalse(r1.equals(r2));
        r2.setErrorPaint(new GradientPaint(1.0f, 2.0f, Color.red, 3.0f, 4.0f,
                Color.green));
        assertTrue(r1.equals(r2));


        // errorStroke
        r1.setErrorStroke(new BasicStroke(1.5f));
        assertFalse(r1.equals(r2));
        r2.setErrorStroke(new BasicStroke(1.5f));
        assertTrue(r1.equals(r2));


    }

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    /**
     * Two objects that are equal are required to return the same hashCode.
     */
    public void testHashcode() {
        XYErrorRenderer r1 = new XYErrorRenderer();
        XYErrorRenderer r2 = new XYErrorRenderer();
        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() {
        XYErrorRenderer r1 = new XYErrorRenderer();
        r1.setErrorPaint(new GradientPaint(1.0f, 2.0f, Color.red, 3.0f, 4.0f,
                Color.white));
        XYErrorRenderer r2 = null;
        try {
            r2 = (XYErrorRenderer) r1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(r1 != r2);
        assertTrue(r1.getClass() == r2.getClass());
        assertTrue(r1.equals(r2));
    }

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    /**
     * A test for cloning.
     */
    public void testCloning2() {
        XYErrorRenderer r1 = new XYErrorRenderer();
        r1.setErrorStroke(new BasicStroke(1.5f));
        XYErrorRenderer r2 = null;
        try {
            r2 = (XYErrorRenderer) 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() {
        XYErrorRenderer r1 = new XYErrorRenderer();
        assertTrue(r1 instanceof PublicCloneable);
    }

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    /**
     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization() {
        XYErrorRenderer r1 = new XYErrorRenderer();
        r1.setErrorPaint(new GradientPaint(1.0f, 2.0f, Color.red, 3.0f, 4.0f,
                Color.white));
        XYErrorRenderer r2 = null;


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

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    /**
     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization2() {
        XYErrorRenderer r1 = new XYErrorRenderer();
        r1.setErrorStroke(new BasicStroke(1.5f));
        XYErrorRenderer r2 = null;


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

View Full Code Here

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