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 org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.DateAxis; import org.jfree.chart.axis.ValueAxis; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.plot.XYPlot; import org.jfree.chart.renderer.xy.XYDifferenceRenderer; import org.jfree.chart.renderer.xy.XYItemRenderer; import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer; import org.jfree.data.time.Day; import org.jfree.data.time.TimeSeries; import org.jfree.data.time.TimeSeriesCollection; import org.jfree.data.xy.XYDataset; import org.jfree.ui.RectangleInsets; import edu.ucla.stat.SOCR.chart.ChartGenerator_JTable; import edu.ucla.stat.SOCR.chart.SuperXYChart_Time; import edu.ucla.stat.SOCR.chart.data.DateParser; import edu.ucla.stat.SOCR.chart.gui.SOCRXYSeriesLabelGenerator; /** * A simple demonstration of the {@link XYDifferenceRenderer}. */ public class DifferenceChartDemo1 extends SuperXYChart_Time 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("DifferenceChartDemo1 doTest get called!"); int no_series = (dataTable.getColumnCount() - 2) / 2; int[][] pairs = new int[no_series][2]; for (int i = 0; i < no_series; i++) { pairs[i][0] = 2 * i; //column x pairs[i][1] = 2 * i + 1; //column y } String time_type = "Day"; chart = chartMaker.getXYChart("DifferenceTime", "Line Chart", "Time", "Value", dataTable, no_series, pairs, time_type); chartPanel = new ChartPanel(chart, false); setChart(); } /** * Creates a sample dataset. * * @return A sample dataset. */ protected XYDataset createDataset(boolean isDemo) { if (isDemo) { TimeSeries series1 = new TimeSeries("Random 1"); TimeSeries series2 = new TimeSeries("Random 2"); double value1 = 0.0; double value2 = 0.0; Day day = new Day(); for (int i = 0; i < 200; i++) { value1 = value1 + Math.random() - 0.5; value2 = value2 + Math.random() - 0.5; series1.add(day, value1); series2.add(day, value2); day = (Day) day.next(); } TimeSeriesCollection dataset = new TimeSeriesCollection(); dataset.addSeries(series1); dataset.addSeries(series2); return dataset; } else { super.setArrayFromTable(); String[][] x = new String[xyLength][independentVarLength]; double[][] y = new double[xyLength][dependentVarLength]; int[][] skipy = new int[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++) { if (depValues[i][index] == null || depValues[i][index].length() == 0) skipy[i][index] = 1; else y[i][index] = Double.parseDouble(depValues[i][index]); } // create the dataset... TimeSeriesCollection collection = new TimeSeriesCollection(); TimeSeries series; for (int ind = 0; ind < independentVarLength; ind++) { if (independentHeaders[ind].indexOf(":") != -1) series = new TimeSeries( independentHeaders[ind].substring(0, independentHeaders[ind].indexOf(":")), Day.class); else { series = new TimeSeries(independentHeaders[ind], Day.class); //System.out.println("series name is "+independentHeaders[ind]); } //TimeSeries("Executions", "Year", "Count", Year.class); for (int i = 0; i < xyLength; i++) { if (x[i][ind] != null && skipy[i][ind] != 1) series.add(DateParser.parseDay(x[i][ind]), y[i][ind]); //System.out.println("adding"+DateParser.parseDay(x[i][ind])+","+ y[i][ind]); } // collection.setDomainIsPointsInTime(false); collection.addSeries(series); } return collection; } } /** * Creates a chart. * * @param dataset the dataset. * * @return The chart. */ protected JFreeChart createChart(XYDataset dataset) { JFreeChart chart = ChartFactory.createTimeSeriesChart(chartTitle, domainLabel, rangeLabel, dataset, !legendPanelOn, // legend true, // tool tips false // URLs ); chart.setBackgroundPaint(Color.white); XYPlot plot = chart.getXYPlot(); plot.setRenderer(new XYDifferenceRenderer(Color.green, Color.red, false)); plot.setBackgroundPaint(Color.lightGray); plot.setDomainGridlinePaint(Color.white); plot.setRangeGridlinePaint(Color.white); plot.setAxisOffset(new RectangleInsets(5.0, 5.0, 5.0, 5.0)); XYItemRenderer renderer = plot.getRenderer(); renderer.setLegendItemLabelGenerator(new SOCRXYSeriesLabelGenerator()); ValueAxis domainAxis = new DateAxis("Time"); domainAxis.setLowerMargin(0.0); domainAxis.setUpperMargin(0.0); plot.setDomainAxis(domainAxis); plot.setForegroundAlpha(0.5f); //setXSummary(dataset) X is time; return chart; } protected JFreeChart createLegend(XYDataset dataset) { JFreeChart chart = ChartFactory.createTimeSeriesChart(chartTitle, domainLabel, rangeLabel, dataset, !legendPanelOn, // legend true, // tool tips false // URLs ); // NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART... chart.setBackgroundPaint(Color.white); XYPlot plot = (XYPlot) chart.getPlot(); XYItemRenderer renderer = plot.getRenderer(); renderer.setLegendItemLabelGenerator(new SOCRXYSeriesLabelGenerator()); return chart; } }