edu.ucla.stat.SOCR.chart.demo.LineChartDemo3.java Source code

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Here is the source code for edu.ucla.stat.SOCR.chart.demo.LineChartDemo3.java

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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.plot.PlotOrientation;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;
import org.jfree.data.xy.XYDataset;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;

import edu.ucla.stat.SOCR.chart.ChartGenerator_JTable;
import edu.ucla.stat.SOCR.chart.SuperXYChart;
import edu.ucla.stat.SOCR.chart.gui.SOCRXYSeriesLabelGenerator;

/**
 * This line chart demo shows many series, each displaying a different shape.
 */
public class LineChartDemo3 extends SuperXYChart implements PropertyChangeListener {
    public void doTest() {
        JFreeChart chart;
        ChartGenerator_JTable chartMaker = new ChartGenerator_JTable();

        resetChart();
        showMessageDialog(chartTitle + "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
        }
        chart = chartMaker.getXYChart("Line", chartTitle, "X", "Y", dataTable, no_series, pairs, "");
        chartPanel = new ChartPanel(chart, false);

        setChart();
    }

    /**
     * creaets XYDataset
     *  @param isDemo true use the demo data, false use data from the JTable
     *  @return XYDataset
     */
    protected XYDataset createDataset(boolean isDemo) {
        if (isDemo) {
            XYSeriesCollection dataset = new XYSeriesCollection();
            for (int i = 0; i < 4; i++) {
                XYSeries series = new XYSeries("S" + i);
                for (int j = 0; j < 4; j++) {
                    series.add(j, Math.random() * 100);
                }
                dataset.addSeries(series);
            }
            return dataset;
        } else
            return super.createDataset(false);
    }

    /**
     * Creates a chart.
     * 
     * @param dataset  a dataset.
     * 
     * @return A chart based on the supplied dataset.
     */
    protected JFreeChart createChart(XYDataset dataset) {

        JFreeChart chart = ChartFactory.createXYLineChart(chartTitle, // chart title
                domainLabel, // x axis label
                rangeLabel, // y axis label
                dataset, // data
                PlotOrientation.VERTICAL, !legendPanelOn, // include legend
                true, // tooltips
                false // urls
        );

        // NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART...

        // get a reference to the plot for further customisation...
        XYPlot plot = (XYPlot) chart.getPlot();
        XYLineAndShapeRenderer renderer = (XYLineAndShapeRenderer) plot.getRenderer();
        renderer.setBaseShapesVisible(true);
        renderer.setBaseShapesFilled(true);
        renderer.setDrawOutlines(true);
        renderer.setLegendItemLabelGenerator(new SOCRXYSeriesLabelGenerator());

        // change the auto tick unit selection to integer units only...
        NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
        rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
        NumberAxis domainAxis = (NumberAxis) plot.getDomainAxis();
        domainAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
        setXSummary(dataset);
        return chart;
    }

}