org.azrul.langmera.LineChart.java Source code

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Here is the source code for org.azrul.langmera.LineChart.java

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package org.azrul.langmera;

import io.vertx.core.shareddata.LocalMap;
import java.awt.BasicStroke;
import java.awt.Color;
import java.util.List;
import java.util.Map;

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 org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;

/**
 * A simple demonstration application showing how to create a line chart using
 * data from an {@link XYDataset}.
 *
 */
public class LineChart extends ApplicationFrame {

    /**
     * Creates a new demo.
     *
     * @param title the frame title.
     */
    public LineChart(final String title, Map<String, List<Double>> dataList) {

        super(title);

        final XYDataset dataset = createDataset(dataList);
        final JFreeChart chart = createChart(dataset);
        final ChartPanel chartPanel = new ChartPanel(chart);
        chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
        setContentPane(chartPanel);

    }

    /**
     * Creates a sample dataset.
     *
     * @return a sample dataset.
     */
    public XYDataset createDataset(Map<String, List<Double>> dataList) {
        final XYSeriesCollection dataset = new XYSeriesCollection();
        for (String key : dataList.keySet()) {
            final XYSeries series = new XYSeries(key);
            int maxT = dataList.get(key).size();
            for (int j = 0; j < (maxT - 1); j++) {
                Double v = dataList.get(key).get(j) * 100.0;
                series.add((double) j, (double) (v));
            }
            dataset.addSeries(series);
        }
        return dataset;

    }

    /**
     * Creates a chart.
     *
     * @param dataset the data for the chart.
     *
     * @return a chart.
     */
    private JFreeChart createChart(final XYDataset dataset) {

        // create the chart...
        final JFreeChart chart = ChartFactory.createXYLineChart(this.getTitle(), // chart title
                "Number of messages", // x axis label
                "Value of actions", // y axis label
                dataset, // data
                PlotOrientation.VERTICAL, true, // include legend
                true, // tooltips
                false // urls
        );

        // NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART...
        chart.setBackgroundPaint(Color.white);

        //        final StandardLegend legend = (StandardLegend) chart.getLegend();
        //      legend.setDisplaySeriesShapes(true);
        // get a reference to the plot for further customisation...
        final XYPlot plot = chart.getXYPlot();
        plot.setBackgroundPaint(Color.lightGray);
        //    plot.setAxisOffset(new Spacer(Spacer.ABSOLUTE, 5.0, 5.0, 5.0, 5.0));
        plot.setDomainGridlinePaint(Color.white);
        plot.setRangeGridlinePaint(Color.white);

        final XYLineAndShapeRenderer renderer = new XYLineAndShapeRenderer();
        for (int i = 0; i < dataset.getSeriesCount(); i++) {
            renderer.setSeriesStroke(i, new BasicStroke(2.0f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND, 1.0f,
                    new float[] { 10.0f, 6.0f }, 0.0f));
        }

        return chart;

    }

    // ****************************************************************************
    // * JFREECHART DEVELOPER GUIDE                                               *
    // * The JFreeChart Developer Guide, written by David Gilbert, is available   *
    // * to purchase from Object Refinery Limited:                                *
    // *                                                                          *
    // * http://www.object-refinery.com/jfreechart/guide.html                     *
    // *                                                                          *
    // * Sales are used to provide funding for the JFreeChart project - please    * 
    // * support us so that we can continue developing free software.             *
    // ****************************************************************************
}