org.jfree.data.xy.XYSeriesCollection Java Examples

@Test
public void testMapDatasetToDomainAxis() {
    XYDataset dataset = new XYSeriesCollection();
    NumberAxis xAxis = new NumberAxis("X");
    NumberAxis yAxis = new NumberAxis("Y");
    XYItemRenderer renderer = new DefaultXYItemRenderer();
    XYPlot plot = new XYPlot(dataset, xAxis, yAxis, renderer);

    NumberAxis xAxis2 = new NumberAxis("X2");
    plot.setDomainAxis(11, xAxis2);
    
    // add a second dataset
    XYSeriesCollection dataset2 = new XYSeriesCollection();
    dataset2.addSeries(new XYSeries("Series in dataset 2"));
    plot.setDataset(99, dataset);    
    
    assertEquals(xAxis, plot.getDomainAxisForDataset(99));

    // now map the dataset to the second xAxis
    plot.mapDatasetToDomainAxis(99, 11);
    assertEquals(xAxis2, plot.getDomainAxisForDataset(99));
}
 

/**
 * A test to reproduce a bug in serialization: the domain and/or range
 * markers for a plot are not being serialized.
 */
@Test
public void testSerialization4() {

    XYSeriesCollection dataset = new XYSeriesCollection();
    JFreeChart chart = ChartFactory.createXYLineChart("Test Chart",
            "Domain Axis", "Range Axis", dataset);
    XYPlot plot = (XYPlot) chart.getPlot();
    plot.addDomainMarker(new ValueMarker(1.0), Layer.FOREGROUND);
    plot.addDomainMarker(new IntervalMarker(2.0, 3.0), Layer.BACKGROUND);
    plot.addRangeMarker(new ValueMarker(4.0), Layer.FOREGROUND);
    plot.addRangeMarker(new IntervalMarker(5.0, 6.0), Layer.BACKGROUND);
    JFreeChart chart2 = (JFreeChart) TestUtilities.serialised(chart);
    assertEquals(chart, chart2);
    try {
        chart2.createBufferedImage(300, 200);
    }
    catch (Exception e) {
        fail("No exception should be thrown.");
    }
}
 

/**
 * A check to ensure that an item that falls outside the plot's data area
 * does NOT generate an item entity.
 */
public void testNoDisplayedItem() {
    XYSeriesCollection dataset = new XYSeriesCollection();
    XYSeries s1 = new XYSeries("S1");
    s1.add(10.0, 10.0);
    dataset.addSeries(s1);
    JFreeChart chart = ChartFactory.createXYLineChart("Title", "X", "Y",
            dataset, false);
    XYPlot plot = (XYPlot) chart.getPlot();
    plot.setRenderer(new StandardXYItemRenderer());
    NumberAxis xAxis = (NumberAxis) plot.getDomainAxis();
    xAxis.setRange(0.0, 5.0);
    NumberAxis yAxis = (NumberAxis) plot.getRangeAxis();
    yAxis.setRange(0.0, 5.0);
    BufferedImage image = new BufferedImage(200 , 100,
            BufferedImage.TYPE_INT_RGB);
    Graphics2D g2 = image.createGraphics();
    ChartRenderingInfo info = new ChartRenderingInfo();
    chart.draw(g2, new Rectangle2D.Double(0, 0, 200, 100), null, info);
    g2.dispose();
    EntityCollection ec = info.getEntityCollection();
    assertFalse(TestUtilities.containsInstanceOf(ec.getEntities(),
            XYItemEntity.class));
}
 

/**
 * Creates a dataset, consisting of two series of monthly data.
 *
 * @return the dataset.
 */
private static XYDataset createDataset() {
  XYSeriesCollection data = new XYSeriesCollection();

  Random r = new Random(System.currentTimeMillis());

  for (int i = 0; i < 3; i++) {
    XYSeries s = new XYSeries("Series" + i);
    for (int x = 0; x < 100; x++) {
      double v = r.nextGaussian() * (i + 1);
      s.add(x, v);
    }
    data.addSeries(s);
  }
  return data;
}
 

/**
 * Creates a dataset for testing.
 *
 * @return A dataset.
 */
private XYDataset createXYDataset1() {
    XYSeries series1 = new XYSeries("S1");
    series1.add(1.0, 100.0);
    series1.add(2.0, 101.0);
    series1.add(3.0, 102.0);
    XYSeries series2 = new XYSeries("S2");
    series2.add(1.0, 103.0);
    series2.add(2.0, null);
    series2.add(3.0, 105.0);
    XYSeriesCollection result = new XYSeriesCollection();
    result.addSeries(series1);
    result.addSeries(series2);
    result.setIntervalWidth(0.0);
    return result;
}
 

public XYDataset getMarketDepthDataset(final Currency currency, final GoodType goodType) {
	final XYSeries series = new XYSeries(goodType + " ask");

	final Iterator<MarketOrder> iterator = ApplicationContext.getInstance().getMarketOrderDAO()
			.getIteratorThreadsafe(currency, goodType);
	double volume = 0.0;

	while (iterator.hasNext()) {
		final MarketOrder marketOrder = iterator.next();
		volume += marketOrder.getAmount();
		// volume available at that price per unit or less
		series.add(marketOrder.getPricePerUnit(), volume);
	}

	final XYSeriesCollection dataset = new XYSeriesCollection();
	dataset.removeAllSeries();
	dataset.addSeries(series);
	return dataset;
}
 

/**
 * Checks that the auto-range for the domain axis on an XYPlot is
 * working as expected.
 */
@Test
public void testXYAutoRange1() {
    XYSeries series = new XYSeries("Series 1");
    series.add(1.0, 1.0);
    series.add(2.0, 2.0);
    series.add(3.0, 3.0);
    XYSeriesCollection dataset = new XYSeriesCollection();
    dataset.addSeries(series);
    JFreeChart chart = ChartFactory.createScatterPlot("Test", "X", "Y",
            dataset);
    XYPlot plot = (XYPlot) chart.getPlot();
    LogAxis axis = new LogAxis("Log(Y)");
    plot.setRangeAxis(axis);
    assertEquals(0.9465508226401592, axis.getLowerBound(), EPSILON);
    assertEquals(3.1694019256486126, axis.getUpperBound(), EPSILON);
}
 

/**
 * Checks the results of a power regression on sample dataset 2 AFTER
 * converting it to an XYSeries.
 */
@Test
public void testPowerRegression2b() {

    double[][] data = createSampleData2();

    XYSeries series = new XYSeries("Test");
    for (int i = 0; i < 10; i++) {
        series.add(data[i][0], data[i][1]);
    }
    XYDataset ds = new XYSeriesCollection(series);
    double[] result = Regression.getPowerRegression(ds, 0);

    assertEquals(106.1241681, result[0], 0.0000001);
    assertEquals(-0.8466615, result[1], 0.0000001);

}
 

/**
 * Checks that the auto-range for the range axis on an XYPlot is
 * working as expected.
 */
@Test
public void testXYAutoRange2() {
    XYSeries series = new XYSeries("Series 1");
    series.add(1.0, 1.0);
    series.add(2.0, 2.0);
    series.add(3.0, 3.0);
    XYSeriesCollection dataset = new XYSeriesCollection();
    dataset.addSeries(series);
    JFreeChart chart = ChartFactory.createScatterPlot("Test", "X", "Y",
            dataset);
    XYPlot plot = (XYPlot) chart.getPlot();
    LogAxis axis = new LogAxis("Log(Y)");
    plot.setRangeAxis(axis);
    assertEquals(0.9465508226401592, axis.getLowerBound(), EPSILON);
    assertEquals(3.1694019256486126, axis.getUpperBound(), EPSILON);
}
 

/**
 * Creates a sample dataset.
 *
 * @return Series 2.
 */
private XYDataset createDataset2() {

    // create dataset 2...
    XYSeries series2 = new XYSeries("Series 3");

    series2.add(10.0, 16853.2);
    series2.add(20.0, 19642.3);
    series2.add(30.0, 18253.5);
    series2.add(40.0, 15352.3);
    series2.add(50.0, 13532.0);
    series2.add(100.0, 12635.3);
    series2.add(110.0, 13998.2);
    series2.add(120.0, 11943.2);
    series2.add(130.0, 16943.9);
    series2.add(140.0, 17843.2);
    series2.add(150.0, 16495.3);
    series2.add(160.0, 17943.6);
    series2.add(170.0, 18500.7);
    series2.add(180.0, 19595.9);

    return new XYSeriesCollection(series2);

}
 

/**
 * Some checks for the getRendererForDataset() method.
 */
public void testGetRendererForDataset() {
    XYDataset d0 = new XYSeriesCollection();
    XYDataset d1 = new XYSeriesCollection();
    XYDataset d2 = new XYSeriesCollection();
    XYDataset d3 = new XYSeriesCollection();  // not used by plot
    XYItemRenderer r0 = new XYLineAndShapeRenderer();
    XYItemRenderer r2 = new XYLineAndShapeRenderer();
    XYPlot plot = new XYPlot();
    plot.setDataset(0, d0);
    plot.setDataset(1, d1);
    plot.setDataset(2, d2);
    plot.setRenderer(0, r0);
    // no renderer 1
    plot.setRenderer(2, r2);
    assertEquals(r0, plot.getRendererForDataset(d0));
    assertEquals(r0, plot.getRendererForDataset(d1));
    assertEquals(r2, plot.getRendererForDataset(d2));
    assertEquals(null, plot.getRendererForDataset(d3));
    assertEquals(null, plot.getRendererForDataset(null));
}
 

/**
 * Create a horizontal bar chart with sample data in the range -3 to +3.
 *
 * @return The chart.
 */
private static JFreeChart createChart() {

    // create a dataset...
    XYSeries series1 = new XYSeries("Series 1");
    series1.add(1.0, 1.0);
    series1.add(2.0, 2.0);
    series1.add(3.0, 3.0);
    IntervalXYDataset dataset = new XYBarDataset(new XYSeriesCollection(
            series1), 1.0);
 
    // create the chart...
    return ChartFactory.createXYBarChart(
        "XY Bar Chart",  // chart title
        "Domain", false,
        "Range",
        dataset,         // data
        PlotOrientation.VERTICAL,
        true,            // include legend
        true,            // tooltips
        true             // urls
    );

}
 

/**
 * Creates a dataset, consisting of two series of monthly data.
 *
 * @return the dataset.
 */
private static XYDataset createDataset() {
  XYSeriesCollection data = new XYSeriesCollection();

  Random r = new Random(System.currentTimeMillis());

  for (int i = 0; i < 3; i++) {
    XYSeries s = new XYSeries("Series" + i);
    for (int x = 0; x < 100; x++) {
      double v = r.nextGaussian() * (i + 1);
      s.add(x, v);
    }
    data.addSeries(s);
  }
  return data;
}
 

/**
 * Checks that the auto-range for the domain axis on an XYPlot is
 * working as expected.
 */
@Test
public void testXYAutoRange1() {
    XYSeries series = new XYSeries("Series 1");
    series.add(1.0, 1.0);
    series.add(2.0, 2.0);
    series.add(3.0, 3.0);
    XYSeriesCollection dataset = new XYSeriesCollection();
    dataset.addSeries(series);
    JFreeChart chart = ChartFactory.createScatterPlot("Test", "X", "Y",
            dataset);
    XYPlot plot = (XYPlot) chart.getPlot();
    LogAxis axis = new LogAxis("Log(Y)");
    plot.setRangeAxis(axis);
    assertEquals(0.9465508226401592, axis.getLowerBound(), EPSILON);
    assertEquals(3.1694019256486126, axis.getUpperBound(), EPSILON);
}
 

/**
 * Checks that the auto-range for the range axis on an XYPlot is
 * working as expected.
 */
@Test
public void testXYAutoRange2() {
    XYSeries series = new XYSeries("Series 1");
    series.add(1.0, 1.0);
    series.add(2.0, 2.0);
    series.add(3.0, 3.0);
    XYSeriesCollection dataset = new XYSeriesCollection();
    dataset.addSeries(series);
    JFreeChart chart = ChartFactory.createScatterPlot("Test", "X", "Y",
            dataset);
    XYPlot plot = (XYPlot) chart.getPlot();
    NumberAxis axis = (NumberAxis) plot.getRangeAxis();
    axis.setAutoRangeIncludesZero(false);
    assertEquals(0.9, axis.getLowerBound(), EPSILON);
    assertEquals(3.1, axis.getUpperBound(), EPSILON);
}
 

@Test 
public void testRendererIndices() {
    XYDataset dataset = new XYSeriesCollection();
    NumberAxis xAxis = new NumberAxis("X");
    NumberAxis yAxis = new NumberAxis("Y");
    XYItemRenderer renderer = new DefaultXYItemRenderer();
    XYPlot plot = new XYPlot(dataset, xAxis, yAxis, renderer);
    
    assertEquals(renderer, plot.getRenderer(0));
    
    // we should be able to give a renderer an arbitrary index
    XYLineAndShapeRenderer renderer2 = new XYLineAndShapeRenderer();
    plot.setRenderer(20, renderer2);
    assertEquals(2, plot.getRendererCount());
    assertEquals(renderer2, plot.getRenderer(20));
    
    assertEquals(20, plot.getIndexOf(renderer2));
}
 

/**
 * Replaces the dataset and checks that it has changed as expected.
 */
public void testReplaceDataset() {

    // create a dataset...
    XYSeries series1 = new XYSeries("Series 1");
    series1.add(10.0, 10.0);
    series1.add(20.0, 20.0);
    series1.add(30.0, 30.0);
    XYDataset dataset = new XYSeriesCollection(series1);

    LocalListener l = new LocalListener();
    this.chart.addChangeListener(l);
    XYPlot plot = (XYPlot) this.chart.getPlot();
    plot.setDataset(dataset);
    assertEquals(true, l.flag);
    ValueAxis axis = plot.getRangeAxis();
    Range range = axis.getRange();
    assertTrue("Expecting the lower bound of the range to be around 10: "
               + range.getLowerBound(), range.getLowerBound() <= 10);
    assertTrue("Expecting the upper bound of the range to be around 30: "
               + range.getUpperBound(), range.getUpperBound() >= 30);

}
 

@Test
public void testMapDatasetToDomainAxis() {
    XYDataset dataset = new XYSeriesCollection();
    NumberAxis xAxis = new NumberAxis("X");
    NumberAxis yAxis = new NumberAxis("Y");
    XYItemRenderer renderer = new DefaultXYItemRenderer();
    XYPlot plot = new XYPlot(dataset, xAxis, yAxis, renderer);

    NumberAxis xAxis2 = new NumberAxis("X2");
    plot.setDomainAxis(11, xAxis2);
    
    // add a second dataset
    XYSeriesCollection dataset2 = new XYSeriesCollection();
    dataset2.addSeries(new XYSeries("Series in dataset 2"));
    plot.setDataset(99, dataset);    
    
    assertEquals(xAxis, plot.getDomainAxisForDataset(99));

    // now map the dataset to the second xAxis
    plot.mapDatasetToDomainAxis(99, 11);
    assertEquals(xAxis2, plot.getDomainAxisForDataset(99));
}
 

/**
 * Check that the renderer is calculating the domain bounds correctly.
 */
@Test
public void testFindDomainBounds() {
    XYSeriesCollection dataset
            = RendererXYPackageUtils.createTestXYSeriesCollection();
    JFreeChart chart = ChartFactory.createXYLineChart(
            "Test Chart", "X", "Y", dataset, PlotOrientation.VERTICAL,
            false, false, false);
    XYPlot plot = (XYPlot) chart.getPlot();
    NumberAxis domainAxis = (NumberAxis) plot.getDomainAxis();
    domainAxis.setAutoRangeIncludesZero(false);
    Range bounds = domainAxis.getRange();
    assertFalse(bounds.contains(0.9));
    assertTrue(bounds.contains(1.0));
    assertTrue(bounds.contains(2.0));
    assertFalse(bounds.contains(2.10));
}
 

@Test 
public void testAxisLocationIndices() {
    XYDataset dataset = new XYSeriesCollection();
    NumberAxis xAxis = new NumberAxis("X");
    NumberAxis yAxis = new NumberAxis("Y");
    XYItemRenderer renderer = new DefaultXYItemRenderer();
    XYPlot plot = new XYPlot(dataset, xAxis, yAxis, renderer);

    NumberAxis xAxis2 = new NumberAxis("X2");
    NumberAxis yAxis2 = new NumberAxis("Y2");
    plot.setDomainAxis(99, xAxis2);
    plot.setRangeAxis(99, yAxis2);
    
    plot.setDomainAxisLocation(99, AxisLocation.BOTTOM_OR_RIGHT);
    assertEquals(AxisLocation.BOTTOM_OR_RIGHT, 
            plot.getDomainAxisLocation(99));
    plot.setRangeAxisLocation(99, AxisLocation.BOTTOM_OR_LEFT);
    assertEquals(AxisLocation.BOTTOM_OR_LEFT, 
            plot.getRangeAxisLocation(99));
}
 

/**
 * Some checks for the getLegendItems() method.
 */
@Test
public void testGetLegendItems() {
    XYSeriesCollection d = new XYSeriesCollection();
    d.addSeries(new XYSeries("A"));
    d.addSeries(new XYSeries("B"));
    DefaultPolarItemRenderer r = new DefaultPolarItemRenderer();
    PolarPlot plot = new PolarPlot();
    plot.setDataset(d);
    plot.setRenderer(r);
    LegendItemCollection items = plot.getLegendItems();
    assertEquals(2, items.getItemCount());
    LegendItem item1 = items.get(0);
    assertEquals("A", item1.getLabel());
    LegendItem item2 = items.get(1);
    assertEquals("B", item2.getLabel());
}
 

/**
 * Creates a dataset for testing.
 *
 * @return A dataset.
 */
private XYDataset createXYDataset1() {
    XYSeries series1 = new XYSeries("S1");
    series1.add(1.0, 100.0);
    series1.add(2.0, 101.0);
    series1.add(3.0, 102.0);
    XYSeries series2 = new XYSeries("S2");
    series2.add(1.0, 103.0);
    series2.add(2.0, null);
    series2.add(3.0, 105.0);
    XYSeriesCollection result = new XYSeriesCollection();
    result.addSeries(series1);
    result.addSeries(series2);
    result.setIntervalWidth(0.0);
    return result;
}
 

/**
 * Replaces the dataset and checks that it has changed as expected.
 */
public void testReplaceDataset() {

    // create a dataset...
    XYSeries series1 = new XYSeries("Series 1");
    series1.add(10.0, 10.0);
    series1.add(20.0, 20.0);
    series1.add(30.0, 30.0);
    XYDataset dataset = new XYSeriesCollection(series1);

    LocalListener l = new LocalListener();
    this.chart.addChangeListener(l);
    XYPlot plot = (XYPlot) this.chart.getPlot();
    plot.setDataset(dataset);
    assertEquals(true, l.flag);
    ValueAxis axis = plot.getRangeAxis();
    Range range = axis.getRange();
    assertTrue("Expecting the lower bound of the range to be around 10: "
               + range.getLowerBound(), range.getLowerBound() <= 10);
    assertTrue("Expecting the upper bound of the range to be around 30: "
               + range.getUpperBound(), range.getUpperBound() >= 30);

}
 

/**
 * Check that the renderer is calculating the domain bounds correctly.
 */
@Test
public void testFindDomainBounds() {
    XYSeriesCollection dataset
            = RendererXYPackageUtils.createTestXYSeriesCollection();
    JFreeChart chart = ChartFactory.createXYLineChart(
            "Test Chart", "X", "Y", dataset, PlotOrientation.VERTICAL,
            false, false, false);
    XYPlot plot = (XYPlot) chart.getPlot();
    NumberAxis domainAxis = (NumberAxis) plot.getDomainAxis();
    domainAxis.setAutoRangeIncludesZero(false);
    Range bounds = domainAxis.getRange();
    assertFalse(bounds.contains(0.9));
    assertTrue(bounds.contains(1.0));
    assertTrue(bounds.contains(2.0));
    assertFalse(bounds.contains(2.10));
}
 

/**
 * Datasets are now stored in a Map, and it should be possible to assign
 * them an arbitrary key (index).
 */
@Test
public void testDatasetIndices() {
    XYDataset dataset = new XYSeriesCollection();
    NumberAxis xAxis = new NumberAxis("X");
    NumberAxis yAxis = new NumberAxis("Y");
    XYItemRenderer renderer = new DefaultXYItemRenderer();
    XYPlot plot = new XYPlot(dataset, xAxis, yAxis, renderer);
    
    assertEquals(dataset, plot.getDataset(0));
    
    XYSeriesCollection dataset2 = new XYSeriesCollection();
    dataset2.addSeries(new XYSeries("Series in dataset 2"));
    
    // we should be able to give a dataset an arbitrary index
    plot.setDataset(99, dataset2);
    assertEquals(2, plot.getDatasetCount());
    assertEquals(dataset2, plot.getDataset(99));
    
    assertEquals(0, plot.indexOf(dataset));
    assertEquals(99, plot.indexOf(dataset2));
}
 

/**
 * Replaces the dataset and checks that it has changed as expected.
 */
@Test
public void testReplaceDataset() {

    // create a dataset...
    XYSeries series1 = new XYSeries("Series 1");
    series1.add(10.0, 10.0);
    series1.add(20.0, 20.0);
    series1.add(30.0, 30.0);
    XYDataset dataset = new XYSeriesCollection(series1);

    LocalListener l = new LocalListener();
    this.chart.addChangeListener(l);
    XYPlot plot = (XYPlot) this.chart.getPlot();
    plot.setDataset(dataset);
    assertEquals(true, l.flag);
    ValueAxis axis = plot.getRangeAxis();
    Range range = axis.getRange();
    assertTrue("Expecting the lower bound of the range to be around 10: "
               + range.getLowerBound(), range.getLowerBound() <= 10);
    assertTrue("Expecting the upper bound of the range to be around 30: "
               + range.getUpperBound(), range.getUpperBound() >= 30);

}
 

/**
 * Replaces the dataset and checks that it has changed as expected.
 */
@Test
public void testReplaceDataset() {

    // create a dataset...
    XYSeries series1 = new XYSeries("Series 1");
    series1.add(10.0, 10.0);
    series1.add(20.0, 20.0);
    series1.add(30.0, 30.0);
    XYDataset dataset = new XYSeriesCollection(series1);

    LocalListener l = new LocalListener();
    this.chart.addChangeListener(l);
    XYPlot plot = (XYPlot) this.chart.getPlot();
    plot.setDataset(dataset);
    assertEquals(true, l.flag);
    ValueAxis axis = plot.getRangeAxis();
    Range range = axis.getRange();
    assertTrue("Expecting the lower bound of the range to be around 10: "
               + range.getLowerBound(), range.getLowerBound() <= 10);
    assertTrue("Expecting the upper bound of the range to be around 30: "
               + range.getUpperBound(), range.getUpperBound() >= 30);

}
 

/**
 * Checks that the auto-range for the domain axis on an XYPlot is
 * working as expected.
 */
@Test
public void testXYAutoRange1() {
    XYSeries series = new XYSeries("Series 1");
    series.add(1.0, 1.0);
    series.add(2.0, 2.0);
    series.add(3.0, 3.0);
    XYSeriesCollection dataset = new XYSeriesCollection();
    dataset.addSeries(series);
    JFreeChart chart = ChartFactory.createScatterPlot("Test", "X", "Y",
            dataset);
    XYPlot plot = (XYPlot) chart.getPlot();
    LogAxis axis = new LogAxis("Log(Y)");
    plot.setRangeAxis(axis);
    assertEquals(0.9465508226401592, axis.getLowerBound(), EPSILON);
    assertEquals(3.1694019256486126, axis.getUpperBound(), EPSILON);
}
 

/**
 * Create a horizontal bar chart with sample data in the range -3 to +3.
 *
 * @return The chart.
 */
private static JFreeChart createChart() {

    // create a dataset...
    XYSeries series1 = new XYSeries("Series 1");
    series1.add(1.0, 1.0);
    series1.add(2.0, 2.0);
    series1.add(3.0, 3.0);
    XYDataset dataset = new XYSeriesCollection(series1);

    // create the chart...
    return ChartFactory.createXYStepChart(
        "Step Chart",  // chart title
        "Domain",
        "Range",
        dataset,         // data
        PlotOrientation.VERTICAL,
        true,            // include legend
        true,            // tooltips
        true             // urls
    );

}
 

/**
 * Checks the results of an OLS regression on sample dataset 1 AFTER
 * converting it to an XYSeries.
 */
@Test
public void testOLSRegression1b() {

    double[][] data = createSampleData1();

    XYSeries series = new XYSeries("Test");
    for (int i = 0; i < 11; i++) {
        series.add(data[i][0], data[i][1]);
    }
    XYDataset ds = new XYSeriesCollection(series);
    double[] result2 = Regression.getOLSRegression(ds, 0);

    assertEquals(.25680930, result2[0], 0.0000001);
    assertEquals(0.72792106, result2[1], 0.0000001);

}