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.awt.Color; import java.awt.GradientPaint; 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.plot.CategoryPlot; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.renderer.category.BarRenderer; import org.jfree.chart.renderer.category.LineAndShapeRenderer; 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.SOCRCategorySeriesLabelGenerator; /** * A bar chart with only two bars - here the 'maxBarWidth' attribute in the * renderer prevents the bars from getting too wide. */ public class BarChartDemo4 extends SuperCategoryChart_Bar implements PropertyChangeListener { 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, ""); chartPanel = new ChartPanel(chart, false); setChart(); } /** * Returns a sample dataset. * * @return The dataset. */ protected CategoryDataset createDataset(boolean isDemo) { if (isDemo) { // row keys... String series1 = "First"; String series2 = "Second"; // column keys... String category1 = "Category 1"; // create the dataset... DefaultCategoryDataset dataset = new DefaultCategoryDataset(); dataset.addValue(1.0, series1, category1); dataset.addValue(5.0, series2, category1); return dataset; } else return super.createDataset(false); } /** * Creates a sample chart. * * @param dataset the dataset. * * @return The chart. */ protected JFreeChart createChart(CategoryDataset dataset) { // create the chart... JFreeChart chart = ChartFactory.createBarChart(chartTitle, // chart title domainLabel, // domain axis label rangeLabel, // range axis label dataset, // data PlotOrientation.VERTICAL, !legendPanelOn, // include legend true, // tooltips? false // URLs? ); // NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART... // set the background color for the chart... chart.setBackgroundPaint(new Color(0xBBBBDD)); // get a reference to the plot for further customisation... CategoryPlot plot = chart.getCategoryPlot(); // set the range axis to display integers only... NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis(); rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits()); // disable bar outlines... BarRenderer renderer = (BarRenderer) plot.getRenderer(); renderer.setDrawBarOutline(false); renderer.setMaximumBarWidth(0.10); // set up gradient paints for series... GradientPaint gp0 = new GradientPaint(0.0f, 0.0f, Color.blue, 0.0f, 0.0f, Color.lightGray); GradientPaint gp1 = new GradientPaint(0.0f, 0.0f, Color.green, 0.0f, 0.0f, Color.lightGray); renderer.setSeriesPaint(0, gp0); renderer.setSeriesPaint(1, gp1); // OPTIONAL CUSTOMISATION COMPLETED. renderer.setLegendItemLabelGenerator(new SOCRCategorySeriesLabelGenerator()); setCategorySummary(dataset); return chart; } protected JFreeChart createLegend(CategoryDataset dataset) { // JFreeChart chart = ChartFactory.createAreaChart( JFreeChart chart = ChartFactory.createBarChart(chartTitle, // chart title domainLabel, // domain axis label rangeLabel, // range axis label dataset, // data PlotOrientation.VERTICAL, // orientation true, // include legend true, // tooltips false // urls ); // NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART... chart.setBackgroundPaint(Color.white); CategoryPlot plot = chart.getCategoryPlot(); BarRenderer renderer = (BarRenderer) plot.getRenderer(); GradientPaint gp0 = new GradientPaint(0.0f, 0.0f, Color.blue, 0.0f, 0.0f, Color.lightGray); GradientPaint gp1 = new GradientPaint(0.0f, 0.0f, Color.green, 0.0f, 0.0f, Color.lightGray); renderer.setSeriesPaint(0, gp0); renderer.setSeriesPaint(1, gp1); // renderer.setDrawOutlines(true); // renderer.setUseFillPaint(true); // renderer.setFillPaint(Color.white); renderer.setLegendItemLabelGenerator(new SOCRCategorySeriesLabelGenerator()); return chart; } }