org.jfree.chart.demo.DifferenceChartDemo1.java Source code

Introduction

Here is the source code for org.jfree.chart.demo.DifferenceChartDemo1.java

Source

package org.jfree.chart.demo;

import java.awt.Color;
import java.awt.Dimension;

import javax.swing.JPanel;

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.plot.XYPlot;
import org.jfree.chart.renderer.xy.XYDifferenceRenderer;
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.ApplicationFrame;
import org.jfree.ui.RectangleInsets;
import org.jfree.ui.RefineryUtilities;

public class DifferenceChartDemo1 extends ApplicationFrame {

    private static final long serialVersionUID = 1L;

    public DifferenceChartDemo1(String s) {
        super(s);
        JPanel jpanel = createDemoPanel();
        jpanel.setPreferredSize(new Dimension(500, 270));
        setContentPane(jpanel);
    }

    private static XYDataset createDataset() {
        TimeSeries timeseries = new TimeSeries("Random 1");
        TimeSeries timeseries1 = new TimeSeries("Random 2");
        double d = 0.0D;
        double d1 = 0.0D;
        Day day = new Day();
        for (int i = 0; i < 200; i++) {
            d = (d + Math.random()) - 0.5D;
            d1 = (d1 + Math.random()) - 0.5D;
            timeseries.add(day, d);
            timeseries1.add(day, d1);
            day = (Day) day.next();
        }

        TimeSeriesCollection timeseriescollection = new TimeSeriesCollection();
        timeseriescollection.addSeries(timeseries);
        timeseriescollection.addSeries(timeseries1);
        return timeseriescollection;
    }

    private static JFreeChart createChart(XYDataset xydataset) {
        JFreeChart jfreechart = ChartFactory.createTimeSeriesChart("Difference Chart Demo 1", "Time", "Value",
                xydataset, true, true, false);
        jfreechart.setBackgroundPaint(Color.white);
        XYPlot xyplot = (XYPlot) jfreechart.getPlot();
        XYDifferenceRenderer xydifferencerenderer = new XYDifferenceRenderer(Color.green, Color.red, false);
        xydifferencerenderer.setRoundXCoordinates(true);
        xyplot.setDomainCrosshairLockedOnData(true);
        xyplot.setRangeCrosshairLockedOnData(true);
        xyplot.setDomainCrosshairVisible(true);
        xyplot.setRangeCrosshairVisible(true);
        xyplot.setRenderer(xydifferencerenderer);
        xyplot.setBackgroundPaint(Color.lightGray);
        xyplot.setDomainGridlinePaint(Color.white);
        xyplot.setRangeGridlinePaint(Color.white);
        xyplot.setAxisOffset(new RectangleInsets(5D, 5D, 5D, 5D));
        DateAxis dateaxis = new DateAxis("Time");
        dateaxis.setLowerMargin(0.0D);
        dateaxis.setUpperMargin(0.0D);
        xyplot.setDomainAxis(dateaxis);
        xyplot.setForegroundAlpha(0.5F);
        return jfreechart;
    }

    public static JPanel createDemoPanel() {
        JFreeChart jfreechart = createChart(createDataset());
        return new ChartPanel(jfreechart);
    }

    public static void main(String args[]) {
        DifferenceChartDemo1 differencechartdemo1 = new DifferenceChartDemo1("Difference Chart Demo 1");
        differencechartdemo1.pack();
        RefineryUtilities.centerFrameOnScreen(differencechartdemo1);
        differencechartdemo1.setVisible(true);
    }
}