Java tutorial
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See the GNU Lesser General Public License for more details see http://opensource.org/licenses/lgpl-license.php. http://www.SOCR.ucla.edu http://wiki.stat.ucla.edu/socr It s Online, Therefore, It Exists! ****************************************************/ package edu.ucla.stat.SOCR.chart.demo; import java.beans.PropertyChangeListener; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.axis.ValueAxis; import org.jfree.chart.labels.StandardCategoryItemLabelGenerator; import org.jfree.chart.labels.StandardCategoryToolTipGenerator; import org.jfree.chart.plot.CategoryPlot; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.renderer.category.CategoryItemRenderer; import org.jfree.chart.renderer.category.StackedBarRenderer; import org.jfree.data.category.CategoryDataset; import org.jfree.data.category.DefaultCategoryDataset; import edu.ucla.stat.SOCR.chart.ChartGenerator_JTable; import edu.ucla.stat.SOCR.chart.SuperCategoryChart_Bar; import edu.ucla.stat.SOCR.chart.gui.ExtendedStackedBarRenderer; import edu.ucla.stat.SOCR.chart.gui.SOCRCategorySeriesLabelGenerator; /** * A simple demonstration application showing how to create a stacked bar chart * using data from a {@link CategoryDataset}. This demo also has item labels * displayed. */ public class StackedBarChartDemo2 extends SuperCategoryChart_Bar implements PropertyChangeListener { public void init() { turnLegendPanelOn(); super.init(); } public void doTest() { JFreeChart chart; ChartGenerator_JTable chartMaker = new ChartGenerator_JTable(); resetChart(); showMessageDialog(chartTitle + " doTest get called!"); int no_series = dataTable.getRowCount() - 1; int no_category = dataTable.getColumnCount() - 2; int[][] pairs = new int[no_category][2]; for (int i = 0; i < no_category; i++) { pairs[i][0] = i + 1; //column i store category i pairs[i][1] = 0; //column 0 stores series name } chart = chartMaker.getCategoryChart("Bar", chartTitle, "Category", "value", dataTable, no_category, pairs, "stacked horizontal"); chartPanel = new ChartPanel(chart, false); setChart(); } /** * Creates a sample dataset. * * @return a sample dataset. */ protected CategoryDataset createDataset(boolean isDemo) { if (isDemo) { DefaultCategoryDataset dataset = new DefaultCategoryDataset(); dataset.addValue(10.0, "Series 1", "Category 1"); dataset.addValue(4.0, "Series 1", "Category 2"); dataset.addValue(15.0, "Series 1", "Category 3"); dataset.addValue(14.0, "Series 1", "Category 4"); dataset.addValue(-5.0, "Series 2", "Category 1"); dataset.addValue(-7.0, "Series 2", "Category 2"); dataset.addValue(14.0, "Series 2", "Category 3"); dataset.addValue(-3.0, "Series 2", "Category 4"); dataset.addValue(6.0, "Series 3", "Category 1"); dataset.addValue(17.0, "Series 3", "Category 2"); dataset.addValue(-12.0, "Series 3", "Category 3"); dataset.addValue(7.0, "Series 3", "Category 4"); dataset.addValue(7.0, "Series 4", "Category 1"); dataset.addValue(15.0, "Series 4", "Category 2"); dataset.addValue(11.0, "Series 4", "Category 3"); dataset.addValue(0.0, "Series 4", "Category 4"); dataset.addValue(-8.0, "Series 5", "Category 1"); dataset.addValue(-6.0, "Series 5", "Category 2"); dataset.addValue(10.0, "Series 5", "Category 3"); dataset.addValue(-9.0, "Series 5", "Category 4"); dataset.addValue(9.0, "Series 6", "Category 1"); dataset.addValue(-8.0, "Series 6", "Category 2"); dataset.addValue(0.0, "Series 6", "Category 3"); dataset.addValue(6.0, "Series 6", "Category 4"); return dataset; } else return super.createDataset(false); } /** * Creates a sample chart. * * @param dataset the dataset. * * @return a sample chart. */ protected JFreeChart createChart(CategoryDataset dataset) { JFreeChart chart = ChartFactory.createStackedBarChart(chartTitle, domainLabel, // domain axis label rangeLabel, // range axis label dataset, // data PlotOrientation.HORIZONTAL, // the plot orientation !legendPanelOn, // include legend true, // tooltips false // urls ); /* CategoryPlot plot = (CategoryPlot) chart.getPlot(); StackedBarRenderer renderer = (StackedBarRenderer) plot.getRenderer(); renderer.setItemLabelsVisible(true);*/ CategoryPlot plot = chart.getCategoryPlot(); CategoryItemRenderer renderer = new ExtendedStackedBarRenderer(); renderer.setBaseItemLabelsVisible(true); renderer.setBaseItemLabelGenerator(new StandardCategoryItemLabelGenerator()); renderer.setBaseToolTipGenerator(new StandardCategoryToolTipGenerator()); plot.setRenderer(renderer); ValueAxis rangeAxis = plot.getRangeAxis(); rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits()); rangeAxis.setLowerMargin(0.15); rangeAxis.setUpperMargin(0.15); StackedBarRenderer renderer2 = (StackedBarRenderer) plot.getRenderer(); renderer2.setLegendItemLabelGenerator(new SOCRCategorySeriesLabelGenerator()); setCategorySummary(dataset); return chart; } }