boxandwhiskerrenderertests.java

JFreeChart它主要是用来制作各种各样的图表

                new NumberAxis("y"), new BoxAndWhiskerRenderer());
        plot.setOrientation(PlotOrientation.HORIZONTAL);
        JFreeChart chart = new JFreeChart(plot);
        boolean success = false;

        try {
            BufferedImage image = new BufferedImage(200 , 100,
                    BufferedImage.TYPE_INT_RGB);
            Graphics2D g2 = image.createGraphics();
            chart.draw(g2, new Rectangle2D.Double(0, 0, 200, 100), null,
                    new ChartRenderingInfo());
            g2.dispose();
            success = true;
        }
        catch (Exception e) {
            success = false;
        }

        assertTrue(success);

    }

    /**
     * Some checks for the getLegendItem() method.
     */
    public void testGetLegendItem() {
        DefaultBoxAndWhiskerCategoryDataset dataset
                = new DefaultBoxAndWhiskerCategoryDataset();
        List values = new ArrayList();
        values.add(new Double(1.10));
        values.add(new Double(1.45));
        values.add(new Double(1.33));
        values.add(new Double(1.23));
        dataset.add(values, "R1", "C1");
        BoxAndWhiskerRenderer r = new BoxAndWhiskerRenderer();
        CategoryPlot plot = new CategoryPlot(dataset, new CategoryAxis("x"),
                new NumberAxis("y"), r);
        /*JFreeChart chart =*/ new JFreeChart(plot);
        LegendItem li = r.getLegendItem(0, 0);
        assertNotNull(li);
        r.setSeriesVisibleInLegend(0, Boolean.FALSE);
        li = r.getLegendItem(0, 0);
        assertNull(li);
    }

    /**
     * A check for the datasetIndex and seriesIndex fields in the LegendItem
     * returned by the getLegendItem() method.
     */
    public void testGetLegendItemSeriesIndex() {
        DefaultCategoryDataset dataset0 = new DefaultCategoryDataset();
        dataset0.addValue(21.0, "R1", "C1");
        dataset0.addValue(22.0, "R2", "C1");
        DefaultCategoryDataset dataset1 = new DefaultCategoryDataset();
        dataset1.addValue(23.0, "R3", "C1");
        dataset1.addValue(24.0, "R4", "C1");
        dataset1.addValue(25.0, "R5", "C1");
        BoxAndWhiskerRenderer r = new BoxAndWhiskerRenderer();
        CategoryPlot plot = new CategoryPlot(dataset0, new CategoryAxis("x"),
                new NumberAxis("y"), r);
        plot.setDataset(1, dataset1);
        /*JFreeChart chart =*/ new JFreeChart(plot);
        LegendItem li = r.getLegendItem(1, 2);
        assertEquals("R5", li.getLabel());
        assertEquals(1, li.getDatasetIndex());
        assertEquals(2, li.getSeriesIndex());
    }

    /**
     * Draws a chart where the dataset contains a null mean value.
     */
    public void testDrawWithNullMean() {
        boolean success = false;
        try {
            DefaultBoxAndWhiskerCategoryDataset dataset
                    = new DefaultBoxAndWhiskerCategoryDataset();
            dataset.add(new BoxAndWhiskerItem(null, new Double(2.0),
                    new Double(0.0), new Double(4.0), new Double(0.5),
                    new Double(4.5), new Double(-0.5), new Double(5.5),
                    null), "S1", "C1");
            CategoryPlot plot = new CategoryPlot(dataset,
                    new CategoryAxis("Category"), new NumberAxis("Value"),
                    new BoxAndWhiskerRenderer());
            ChartRenderingInfo info = new ChartRenderingInfo();
            JFreeChart chart = new JFreeChart(plot);
            /* BufferedImage image = */ chart.createBufferedImage(300, 200,
                    info);
            success = true;
        }
        catch (Exception e) {
            success = false;
        }
        assertTrue(success);
    }

    /**
     * Draws a chart where the dataset contains a null median value.
     */
    public void testDrawWithNullMedian() {
        boolean success = false;
        try {
            DefaultBoxAndWhiskerCategoryDataset dataset
                    = new DefaultBoxAndWhiskerCategoryDataset();
            dataset.add(new BoxAndWhiskerItem(new Double(1.0), null,
                    new Double(0.0), new Double(4.0), new Double(0.5),
                    new Double(4.5), new Double(-0.5), new Double(5.5),
                    null), "S1", "C1");
            CategoryPlot plot = new CategoryPlot(dataset,
                    new CategoryAxis("Category"), new NumberAxis("Value"),
                    new BoxAndWhiskerRenderer());
            ChartRenderingInfo info = new ChartRenderingInfo();
            JFreeChart chart = new JFreeChart(plot);
            /* BufferedImage image = */ chart.createBufferedImage(300, 200,
                    info);
            success = true;
        }
        catch (Exception e) {
            success = false;
        }
        assertTrue(success);
    }

    /**
     * Draws a chart where the dataset contains a null Q1 value.
     */
    public void testDrawWithNullQ1() {
        boolean success = false;
        try {
            DefaultBoxAndWhiskerCategoryDataset dataset
                    = new DefaultBoxAndWhiskerCategoryDataset();
            dataset.add(new BoxAndWhiskerItem(new Double(1.0), new Double(2.0),
                    null, new Double(4.0), new Double(0.5),
                    new Double(4.5), new Double(-0.5), new Double(5.5),
                    null), "S1", "C1");
            CategoryPlot plot = new CategoryPlot(dataset,
                    new CategoryAxis("Category"), new NumberAxis("Value"),
                    new BoxAndWhiskerRenderer());
            ChartRenderingInfo info = new ChartRenderingInfo();
            JFreeChart chart = new JFreeChart(plot);
            /* BufferedImage image = */ chart.createBufferedImage(300, 200,
                    info);
            success = true;
        }
        catch (Exception e) {
            success = false;
        }
        assertTrue(success);
    }

    /**
     * Draws a chart where the dataset contains a null Q3 value.
     */
    public void testDrawWithNullQ3() {
        boolean success = false;
        try {
            DefaultBoxAndWhiskerCategoryDataset dataset
                    = new DefaultBoxAndWhiskerCategoryDataset();
            dataset.add(new BoxAndWhiskerItem(new Double(1.0), new Double(2.0),
                    new Double(3.0), null, new Double(0.5),
                    new Double(4.5), new Double(-0.5), new Double(5.5),
                    null), "S1", "C1");
            CategoryPlot plot = new CategoryPlot(dataset,
                    new CategoryAxis("Category"), new NumberAxis("Value"),
                    new BoxAndWhiskerRenderer());
            ChartRenderingInfo info = new ChartRenderingInfo();
            JFreeChart chart = new JFreeChart(plot);
            /* BufferedImage image = */ chart.createBufferedImage(300, 200,
                    info);
            success = true;
        }
        catch (Exception e) {
            success = false;
        }
        assertTrue(success);
    }

    /**
     * Draws a chart where the dataset contains a null min regular value.
     */
    public void testDrawWithNullMinRegular() {
        boolean success = false;
        try {
            DefaultBoxAndWhiskerCategoryDataset dataset
                    = new DefaultBoxAndWhiskerCategoryDataset();
            dataset.add(new BoxAndWhiskerItem(new Double(1.0), new Double(2.0),
                    new Double(3.0), new Double(4.0), null,
                    new Double(4.5), new Double(-0.5), new Double(5.5),
                    null), "S1", "C1");
            CategoryPlot plot = new CategoryPlot(dataset,
                    new CategoryAxis("Category"), new NumberAxis("Value"),
                    new BoxAndWhiskerRenderer());
            ChartRenderingInfo info = new ChartRenderingInfo();
            JFreeChart chart = new JFreeChart(plot);
            /* BufferedImage image = */ chart.createBufferedImage(300, 200,
                    info);
            success = true;
        }
        catch (Exception e) {
            success = false;
        }
        assertTrue(success);
    }

    /**
     * Draws a chart where the dataset contains a null max regular value.
     */
    public void testDrawWithNullMaxRegular() {
        boolean success = false;
        try {
            DefaultBoxAndWhiskerCategoryDataset dataset
                    = new DefaultBoxAndWhiskerCategoryDataset();
            dataset.add(new BoxAndWhiskerItem(new Double(1.0), new Double(2.0),
                    new Double(3.0), new Double(4.0), new Double(0.5),
                    null, new Double(-0.5), new Double(5.5),
                    null), "S1", "C1");
            CategoryPlot plot = new CategoryPlot(dataset,
                    new CategoryAxis("Category"), new NumberAxis("Value"),
                    new BoxAndWhiskerRenderer());
            ChartRenderingInfo info = new ChartRenderingInfo();
            JFreeChart chart = new JFreeChart(plot);
            /* BufferedImage image = */ chart.createBufferedImage(300, 200,
                    info);
            success = true;
        }
        catch (Exception e) {
            success = false;
        }
        assertTrue(success);
    }

    /**
     * Draws a chart where the dataset contains a null min outlier value.
     */
    public void testDrawWithNullMinOutlier() {
        boolean success = false;
        try {
            DefaultBoxAndWhiskerCategoryDataset dataset
                    = new DefaultBoxAndWhiskerCategoryDataset();
            dataset.add(new BoxAndWhiskerItem(new Double(1.0), new Double(2.0),
                    new Double(3.0), new Double(4.0), new Double(0.5),
                    new Double(4.5), null, new Double(5.5),
                    null), "S1", "C1");
            CategoryPlot plot = new CategoryPlot(dataset,
                    new CategoryAxis("Category"), new NumberAxis("Value"),
                    new BoxAndWhiskerRenderer());
            ChartRenderingInfo info = new ChartRenderingInfo();
            JFreeChart chart = new JFreeChart(plot);
            /* BufferedImage image = */ chart.createBufferedImage(300, 200,
                    info);
            success = true;
        }
        catch (Exception e) {
            success = false;
        }
        assertTrue(success);
    }

    /**
     * Draws a chart where the dataset contains a null max outlier value.
     */
    public void testDrawWithNullMaxOutlier() {
        boolean success = false;
        try {
            DefaultBoxAndWhiskerCategoryDataset dataset
                    = new DefaultBoxAndWhiskerCategoryDataset();
            dataset.add(new BoxAndWhiskerItem(new Double(1.0), new Double(2.0),
                    new Double(3.0), new Double(4.0), new Double(0.5),
                    new Double(4.5), new Double(-0.5), null,
                    new java.util.ArrayList()), "S1", "C1");
            CategoryPlot plot = new CategoryPlot(dataset,
                    new CategoryAxis("Category"), new NumberAxis("Value"),
                    new BoxAndWhiskerRenderer());
            ChartRenderingInfo info = new ChartRenderingInfo();
            JFreeChart chart = new JFreeChart(plot);
            /* BufferedImage image = */ chart.createBufferedImage(300, 200,
                    info);
            success = true;
        }
        catch (Exception e) {
            success = false;
        }
        assertTrue(success);
    }

}