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.beans.PropertyChangeListener; import java.text.DateFormat; import java.text.DecimalFormat; import java.text.ParseException; import java.util.Date; import javax.swing.JScrollPane; import javax.swing.JTable; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.DateAxis; import org.jfree.chart.labels.CategoryToolTipGenerator; import org.jfree.chart.labels.StandardCategoryToolTipGenerator; import org.jfree.chart.plot.CategoryPlot; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.renderer.category.LineAndShapeRenderer; import org.jfree.data.category.CategoryDataset; import org.jfree.data.category.DefaultCategoryDataset; import org.jfree.data.time.Day; import org.jfree.date.MonthConstants; import edu.ucla.stat.SOCR.chart.ChartGenerator_JTable; import edu.ucla.stat.SOCR.chart.SuperCategoryChart; import edu.ucla.stat.SOCR.chart.data.DateParser; import edu.ucla.stat.SOCR.util.EditableHeader; /** * A demo application showing how to display category data against a date axis. */ public class EventFrequencyDemo1 extends SuperCategoryChart implements PropertyChangeListener { /** * sample code showing how to create a chart using ChartGenerator_JTable class */ public void doTest() { JFreeChart chart; ChartGenerator_JTable chartMaker = new ChartGenerator_JTable(); resetChart(); showMessageDialog("EventFrequencyDemo 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 } String time_type = "Day"; chart = chartMaker.getCategoryChart("EventFreqTime", "Event Frequency Chart", "Category", "Date", dataTable, no_category, pairs, "Day Horizontal"); chartPanel = new ChartPanel(chart, false); setChart(); } /** * Creates a sample chart. * * @param dataset a dataset. * * @return A sample chart. */ protected JFreeChart createChart(CategoryDataset dataset) { JFreeChart chart = ChartFactory.createBarChart(chartTitle, // title domainLabel, // domain axis label rangeLabel, // range axis label dataset, // dataset PlotOrientation.HORIZONTAL, // orientation !legendPanelOn, // include legend true, // tooltips false // URLs ); chart.setBackgroundPaint(new Color(0xFF, 0xFF, 0xCC)); // get a reference to the plot for further customisation... CategoryPlot plot = chart.getCategoryPlot(); plot.getDomainAxis().setMaximumCategoryLabelWidthRatio(10.0f); plot.setRangeAxis(new DateAxis("Date")); CategoryToolTipGenerator toolTipGenerator = new StandardCategoryToolTipGenerator("", DateFormat.getDateInstance()); LineAndShapeRenderer renderer = new LineAndShapeRenderer(false, true); renderer.setBaseToolTipGenerator(toolTipGenerator); plot.setRenderer(renderer); // setCategorySummary(dataset); time return chart; } protected JFreeChart createLegend(CategoryDataset dataset) { // JFreeChart chart = ChartFactory.createAreaChart( JFreeChart chart = ChartFactory.createLineChart(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(); LineAndShapeRenderer renderer = new LineAndShapeRenderer(false, true); plot.setRenderer(renderer); return chart; } /** * Creates a sample dataset. * * @return A sample dataset. */ protected CategoryDataset createDataset(boolean isDemo) { if (isDemo) { DefaultCategoryDataset dataset = new DefaultCategoryDataset(); // initialise the data... Day d1 = new Day(12, MonthConstants.JUNE, 2002); Day d2 = new Day(14, MonthConstants.JUNE, 2002); Day d3 = new Day(15, MonthConstants.JUNE, 2002); Day d4 = new Day(10, MonthConstants.JULY, 2002); Day d5 = new Day(20, MonthConstants.JULY, 2002); Day d6 = new Day(22, MonthConstants.AUGUST, 2002); dataset.setValue(new Long(d1.getMiddleMillisecond()), "Series 1", "Requirement 1"); dataset.setValue(new Long(d1.getMiddleMillisecond()), "Series 1", "Requirement 2"); dataset.setValue(new Long(d2.getMiddleMillisecond()), "Series 1", "Requirement 3"); dataset.setValue(new Long(d3.getMiddleMillisecond()), "Series 2", "Requirement 1"); dataset.setValue(new Long(d4.getMiddleMillisecond()), "Series 2", "Requirement 3"); dataset.setValue(new Long(d5.getMiddleMillisecond()), "Series 3", "Requirement 2"); dataset.setValue(new Long(d6.getMiddleMillisecond()), "Series 1", "Requirement 4"); return dataset; } else { setArrayFromTable(); String[][] x = new String[xyLength][independentVarLength]; String[][] y = new String[xyLength][dependentVarLength]; for (int index = 0; index < independentVarLength; index++) for (int i = 0; i < xyLength; i++) x[i][index] = indepValues[i][index]; for (int index = 0; index < dependentVarLength; index++) for (int i = 0; i < xyLength; i++) y[i][index] = depValues[i][index]; // create the dataset... final DefaultCategoryDataset dataset = new DefaultCategoryDataset(); //dependent for (int j = 0; j < xyLength; j++) for (int i = 0; i < independentVarLength; i++) { //System.out.println("*"+x[j][i]+"*"); if (x[j][i] != null && !x[j][i].equals("NaN") && x[j][i].length() != 0 && y[j][0] != null) { Day day = DateParser.parseDay(x[j][i]); dataset.addValue(new Long(day.getMiddleMillisecond()), y[j][0], independentHeaders[i]); } } return dataset; } } public void resetExample() { dataset = createDataset(true); JFreeChart chart = createChart(dataset); chartPanel = new ChartPanel(chart, false); // setSummary(dataset); setChart(); hasExample = true; convertor.dataset2Table(dataset); JTable tempDataTable = convertor.getTable(); resetTableRows(tempDataTable.getRowCount() + 1); resetTableColumns(tempDataTable.getColumnCount() + 1); for (int i = 0; i < tempDataTable.getColumnCount(); i++) { columnModel.getColumn(i).setHeaderValue(tempDataTable.getColumnName(i)); // System.out.println("updateExample tempDataTable["+i+"] = " +tempDataTable.getColumnName(i)); } columnModel = dataTable.getColumnModel(); dataTable.setTableHeader(new EditableHeader(columnModel)); DecimalFormat f = new DecimalFormat("#.#E0"); for (int i = 0; i < tempDataTable.getRowCount(); i++) for (int j = 0; j < tempDataTable.getColumnCount(); j++) { if (j != 0) { try { long time = f.parse((String) tempDataTable.getValueAt(i, j)).longValue(); Date date = new Date(time); dataTable.setValueAt(new Day(date).toString(), i, j); } catch (ParseException e) { dataTable.setValueAt("NaN", i, j); } } else dataTable.setValueAt(tempDataTable.getValueAt(i, j), i, j); } dataPanel.removeAll(); dataPanel.add(new JScrollPane(dataTable)); dataTable.setGridColor(Color.gray); dataTable.setShowGrid(true); dataTable.doLayout(); // this is a fix for the BAD SGI Java VM - not up to date as of dec. 22, 2003 try { dataTable.setDragEnabled(true); } catch (Exception e) { } dataPanel.validate(); // do the mapping addButtonDependent(); int columnCount = dataset.getColumnCount(); for (int i = 0; i < columnCount; i++) addButtonIndependent(); updateStatus(url); } }