Java tutorial
/**************************************************** Statistics Online Computational Resource (SOCR) http://www.StatisticsResource.org All SOCR programs, materials, tools and resources are developed by and freely disseminated to the entire community. Users may revise, extend, redistribute, modify under the terms of the Lesser GNU General Public License as published by the Open Source Initiative http://opensource.org/licenses/. All efforts should be made to develop and distribute factually correct, useful, portable and extensible resource all available in all digital formats for free over the Internet. SOCR resources are distributed in the hope that they will be useful, but without any warranty; without any explicit, implicit or implied warranty for merchantability or fitness for a particular purpose. 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.CategoryAxis; import org.jfree.chart.axis.CategoryLabelPosition; import org.jfree.chart.axis.CategoryLabelPositions; import org.jfree.chart.axis.CategoryLabelWidthType; import org.jfree.chart.plot.CategoryPlot; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.renderer.category.BarRenderer3D; import org.jfree.data.category.CategoryDataset; import org.jfree.data.category.DefaultCategoryDataset; import org.jfree.text.TextBlockAnchor; import org.jfree.ui.RectangleAnchor; import org.jfree.ui.TextAnchor; import edu.ucla.stat.SOCR.chart.ChartGenerator_JTable; import edu.ucla.stat.SOCR.chart.SuperCategoryChart_Bar3D; import edu.ucla.stat.SOCR.chart.gui.SOCRCategorySeriesLabelGenerator; /** * A simple demonstration application showing how to create a horizontal 3D bar chart using data * from a {@link CategoryDataset}. */ public class BarChart3DDemo2 extends SuperCategoryChart_Bar3D 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, "3D horizontal"); chartPanel = new ChartPanel(chart, false); setChart(); } /** * Creates a sample dataset. * @param isDemo true use demo data, false use dataTable as input * @return A sample dataset. */ protected CategoryDataset createDataset(boolean isDemo) { if (isDemo) { DefaultCategoryDataset dataset = new DefaultCategoryDataset(); dataset.addValue(23.0, "Series 1", "London"); dataset.addValue(14.0, "Series 1", "New York"); dataset.addValue(14.0, "Series 1", "Istanbul"); dataset.addValue(14.0, "Series 1", "Cairo"); dataset.addValue(13.0, "Series 2", "London"); dataset.addValue(19.0, "Series 2", "New York"); dataset.addValue(19.0, "Series 2", "Istanbul"); dataset.addValue(19.0, "Series 2", "Cairo"); dataset.addValue(7.0, "Series 3", "London"); dataset.addValue(9.0, "Series 3", "New York"); dataset.addValue(9.0, "Series 3", "Istanbul"); dataset.addValue(9.0, "Series 3", "Cairo"); return dataset; } else return super.createDataset(false); } /** * Creates a chart. * * @param dataset the dataset. * * @return The chart. */ protected JFreeChart createChart(CategoryDataset dataset) { JFreeChart chart = ChartFactory.createBarChart3D(chartTitle, // chart title domainLabel, // domain axis label rangeLabel, // range axis label dataset, // data PlotOrientation.HORIZONTAL, // orientation !legendPanelOn, // include legend true, // tooltips false // urls ); CategoryPlot plot = chart.getCategoryPlot(); plot.setForegroundAlpha(1.0f); // left align the category labels... CategoryAxis axis = plot.getDomainAxis(); CategoryLabelPositions p = axis.getCategoryLabelPositions(); CategoryLabelPosition left = new CategoryLabelPosition(RectangleAnchor.LEFT, TextBlockAnchor.CENTER_LEFT, TextAnchor.CENTER_LEFT, 0.0, CategoryLabelWidthType.RANGE, 0.30f); axis.setCategoryLabelPositions(CategoryLabelPositions.replaceLeftPosition(p, left)); BarRenderer3D renderer = (BarRenderer3D) plot.getRenderer(); renderer.setLegendItemLabelGenerator(new SOCRCategorySeriesLabelGenerator()); setCategorySummary(dataset); return chart; } }