Java Code Examples for org.jfree.chart.plot.CategoryPlot#mapDatasetToRangeAxis()

/**
 * Some tests for the getRangeAxisForDataset() method.
 */
public void testGetRangeAxisForDataset() {
    CategoryDataset dataset = new DefaultCategoryDataset();
    CategoryAxis xAxis = new CategoryAxis("X");
    NumberAxis yAxis = new NumberAxis("Y");
    CategoryItemRenderer renderer = new DefaultCategoryItemRenderer();
    CategoryPlot plot = new CategoryPlot(dataset, xAxis, yAxis, renderer);
    assertEquals(yAxis, plot.getRangeAxisForDataset(0));

    // should get IllegalArgumentException for negative index
    boolean pass = false;
    try {
        plot.getRangeAxisForDataset(-1);
    }
    catch (IllegalArgumentException e) {
        pass = true;
    }
    assertTrue(pass);

    // if multiple axes are mapped, the first in the list should be
    // returned...
    NumberAxis yAxis2 = new NumberAxis("Y2");
    plot.setRangeAxis(1, yAxis2);
    assertEquals(yAxis, plot.getRangeAxisForDataset(0));

    plot.mapDatasetToRangeAxis(0, 1);
    assertEquals(yAxis2, plot.getRangeAxisForDataset(0));

    List axisIndices = Arrays.asList(new Integer[] {new Integer(0),
            new Integer(1)});
    plot.mapDatasetToRangeAxes(0, axisIndices);
    assertEquals(yAxis, plot.getRangeAxisForDataset(0));

    axisIndices = Arrays.asList(new Integer[] {new Integer(1),
            new Integer(2)});
    plot.mapDatasetToRangeAxes(0, axisIndices);
    assertEquals(yAxis2, plot.getRangeAxisForDataset(0));
}
 

public JFreeChart createChart(DatasetMap datasetMap) {
	CategoryDataset datasetValue=(CategoryDataset)datasetMap.getDatasets().get("1");
	CategoryDataset datasetCumulative=(CategoryDataset)datasetMap.getDatasets().get("2");


	JFreeChart chart = ChartFactory.createBarChart(
			name,  // chart title
			xLabel,                     // domain axis label
			yLabel,                     // range axis label
			datasetValue,                        // data
			PlotOrientation.VERTICAL,
			true,                           // include legend
			true,
			false
	);

	chart.setBackgroundPaint(Color.white);

	// get a reference to the plot for further customisation...
	CategoryPlot plot = (CategoryPlot) chart.getPlot();
	plot.setBackgroundPaint(Color.lightGray);
	plot.setRangeGridlinePaint(Color.white);
	CategoryAxis domainAxis = plot.getDomainAxis();
	domainAxis.setLowerMargin(0.02);
	domainAxis.setUpperMargin(0.02);
	domainAxis.setCategoryLabelPositions(CategoryLabelPositions.UP_90);
	// set the range axis to display integers only...
	NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
	rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());

	LineAndShapeRenderer renderer2 = new LineAndShapeRenderer();

	NumberAxis axis2 = new NumberAxis("Percent");
	axis2.setNumberFormatOverride(NumberFormat.getPercentInstance());
	plot.setRangeAxis(1, axis2);
	plot.setDataset(1, datasetCumulative);
	plot.setRenderer(1, renderer2);
	plot.mapDatasetToRangeAxis(1, 1);

	plot.setDatasetRenderingOrder(DatasetRenderingOrder.FORWARD);
	return chart;   
}
 

private JFreeChart createChart() {
	if (data.getItemCount() > 0) {
		// get cumulative percentages
		KeyedValues cumulative = DataUtilities.getCumulativePercentages(data);

		CategoryDataset categoryDataset = DatasetUtilities.createCategoryDataset(
				"Count for " + this.dataTable.getColumnName(this.countColumn) + " = " + countValue, data);

		// create the chart...
		final JFreeChart chart = ChartFactory.createBarChart(null, // chart title
				this.dataTable.getColumnName(this.groupByColumn), // domain axis label
				"Count", // range axis label
				categoryDataset, // data
				PlotOrientation.VERTICAL, true, // include legend
				true, false);

		// set the background color for the chart...
		chart.setBackgroundPaint(Color.WHITE);

		// get a reference to the plot for further customization...
		CategoryPlot plot = chart.getCategoryPlot();

		CategoryAxis domainAxis = plot.getDomainAxis();
		domainAxis.setLowerMargin(0.02);
		domainAxis.setUpperMargin(0.02);
		domainAxis.setLabelFont(LABEL_FONT_BOLD);
		domainAxis.setTickLabelFont(LABEL_FONT);

		// set the range axis to display integers only...
		NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
		rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits(Locale.US));
		rangeAxis.setLabelFont(LABEL_FONT_BOLD);
		rangeAxis.setTickLabelFont(LABEL_FONT);

		// second data set (cumulative percentages)
		CategoryDataset dataset2 = DatasetUtilities.createCategoryDataset("Cumulative (Percent)", cumulative);

		LineAndShapeRenderer renderer2 = new LineAndShapeRenderer();
		renderer2.setSeriesPaint(0, SwingTools.VERY_DARK_BLUE.darker());

		NumberAxis axis2 = new NumberAxis("Percent of " + countValue);
		axis2.setNumberFormatOverride(NumberFormat.getPercentInstance());
		axis2.setLabelFont(LABEL_FONT_BOLD);
		axis2.setTickLabelFont(LABEL_FONT);

		plot.setRangeAxis(1, axis2);
		plot.setDataset(1, dataset2);
		plot.setRenderer(1, renderer2);
		plot.mapDatasetToRangeAxis(1, 1);

		axis2.setTickUnit(new NumberTickUnit(0.1));

		// show grid lines
		plot.setRangeGridlinesVisible(true);

		// bring cumulative line to front
		plot.setDatasetRenderingOrder(DatasetRenderingOrder.FORWARD);

		if (isLabelRotating()) {
			domainAxis.setTickLabelsVisible(true);
			domainAxis.setCategoryLabelPositions(CategoryLabelPositions.createUpRotationLabelPositions(Math.PI / 2.0d));
		}

		return chart;
	} else {
		return null;
	}
}