source: src/main/java/genius/gui/chart/UtilityPlot.java@ 84

package genius.gui.chart;

import org.jfree.chart.*;
import org.jfree.chart.plot.*;
import org.jfree.chart.renderer.xy.XYItemRenderer;
import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;
import org.jfree.chart.axis.*;
import org.jfree.data.xy.*;

import javax.swing.*;

public class UtilityPlot extends JPanel{

        private static final long serialVersionUID = 8533262082855615666L;
        private DefaultXYDataset dataset = new DefaultXYDataset();
        private String xAxisLabel = "round";
        private String yAxisLabel = "my utility of bid";
        private ChartPanel panel;
        JFreeChart chart;
        
        //the constructor for the utilities per round graph:
        public UtilityPlot(double [][] myBidSeries, double [][] oppBidSeries){
                //add the series to the dataset:
                dataset.addSeries("my bids",myBidSeries);
                dataset.addSeries("opponent's bids",oppBidSeries);
                init();
        }
                
        private void init(){
                final XYItemRenderer renderer = new XYLineAndShapeRenderer();
                NumberAxis domainAxis = new NumberAxis(xAxisLabel);
        ValueAxis rangeAxis = new NumberAxis(yAxisLabel);
                XYPlot plot = new XYPlot(dataset, domainAxis, rangeAxis, renderer);
                chart = new JFreeChart("Utilities per round", JFreeChart.DEFAULT_TITLE_FONT, plot, true);
                
                /* just a simple line chart:
                 * chart = ChartFactory.createXYLineChart(
                                headline,
                                xAxisLabel,//xAxisLabel
                                yAxisLabel,//yAxisLabel
                                dataset, // the data to be displayed
                                PlotOrientation.VERTICAL, //if set to horizontal x- and y-axis are switched
                                true, // legend? yes we want a legend
                                false, // tooltips?
                                false // URLs?
                );*/
        
            // This is how you change the values on the x-axis to only integer values
            // the x-axis is called domainAxis, the y-axis rangeAxis
            domainAxis = (NumberAxis) plot.getDomainAxis();
            domainAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
            
            rangeAxis = (NumberAxis) plot.getRangeAxis();
            //if it is important that the axis' values start with 0:
            //rangeAxis.setAutoRangeIncludesZero(true);
            
            //like this you can set the range of the axis manually 
            //(since we know that the utilities are always between 0 and 1 it makes sense.)
            //I set the range to 1.1 because it gives a little more space at the top, 
            //since we could have utilities that are 1.0 it will look a bit better
            rangeAxis.setRange(0,1.1);
            
        }
        
        public ChartPanel getChartPanel(){
                return panel;
        }
        
        public JFreeChart getChart(){
                return chart;
        }
}