combinedxyplotdemo3.java

Web图形化的Java库

/* ======================================
 * JFreeChart : a free Java chart library
 * ======================================
 *
 * Project Info:  http://www.jfree.org/jfreechart/index.html
 * Project Lead:  David Gilbert ([e-mail]);
 *
 * (C) Copyright 2000-2003, by Object Refinery Limited and Contributors.
 *
 * This library is free software; you can redistribute it and/or modify it under the terms
 * of the GNU Lesser General Public License as published by the Free Software Foundation;
 * either version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License along with this
 * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * ------------------------
 * CombinedXYPlotDemo3.java
 * ------------------------
 * (C) Copyright 2003 by Object Refinery Limited.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited).
 * Contributor(s):   -;
 *
 * $Id $
 *
 * Changes
 * -------
 * 03-Jul-2003 : Version 1 (DG);
 *
 */

package org.jfree.chart.demo;

import java.awt.Color;
import java.awt.Font;
import java.awt.GradientPaint;

import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.TextTitle;
import org.jfree.chart.axis.DateAxis;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.plot.CombinedRangeXYPlot;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.StandardXYItemRenderer;
import org.jfree.chart.renderer.XYBarRenderer;
import org.jfree.data.IntervalXYDataset;
import org.jfree.data.MovingAverage;
import org.jfree.data.XYDataset;
import org.jfree.data.time.Day;
import org.jfree.data.time.TimeSeries;
import org.jfree.data.time.TimeSeriesCollection;
import org.jfree.date.SerialDate;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;

/**
 * A demonstration application showing how to create a combined chart using...
 *
 * @author David Gilbert
 */
public class CombinedXYPlotDemo3 extends ApplicationFrame {

    /**
     * Constructs a new demonstration application.
     *
     * @param title  the frame title.
     */
    public CombinedXYPlotDemo3(String title) {

        super(title);
        JFreeChart chart = createCombinedChart();
        ChartPanel panel = new ChartPanel(chart, true, true, true, false, true);
        panel.setPreferredSize(new java.awt.Dimension(500, 270));
        setContentPane(panel);

    }

    /**
     * Creates a combined XYPlot chart.
     *
     * @return the combined chart.
     */
    private JFreeChart createCombinedChart() {

        // create a default chart based on some sample data...
        TimeSeriesCollection dataset0 = new TimeSeriesCollection();
        TimeSeries eur = DemoDatasetFactory.createEURTimeSeries();
        dataset0.addSeries(eur);

        TimeSeriesCollection dataset1 = new TimeSeriesCollection();
        TimeSeries mav = MovingAverage.createMovingAverage(eur, "EUR/GBP (30 Day MA)", 30, 30);
        dataset1.addSeries(eur);
        dataset1.addSeries(mav);

        TimeSeriesCollection dataset2 = new TimeSeriesCollection();
        dataset2.addSeries(eur);

        JFreeChart chart = null;

        // make a common vertical axis for all the sub-plots
        NumberAxis valueAxis = new NumberAxis("Value");
        valueAxis.setAutoRangeIncludesZero(false);  // override default

        // make a horizontally combined plot
        CombinedRangeXYPlot parent = new CombinedRangeXYPlot(valueAxis);

        // add subplot 1...
        XYPlot subplot1 = new XYPlot(dataset0, new DateAxis("Date 1"), null, 
                                     new StandardXYItemRenderer());
        parent.add(subplot1, 1);

        // add subplot 2...
        XYPlot subplot2 = new XYPlot(dataset1, new DateAxis("Date 2"), null, 
                                     new StandardXYItemRenderer());
        parent.add(subplot2, 1);

        // add subplot 3...
        XYPlot subplot3 = new XYPlot(dataset2, new DateAxis("Date 3"),
                                     null, new XYBarRenderer(0.20));
        parent.add(subplot3, 1);

        // now make the top level JFreeChart
        chart = new JFreeChart("Demo Chart", JFreeChart.DEFAULT_TITLE_FONT, parent, true);

        // then customise it a little...
        TextTitle subtitle = new TextTitle("This is a subtitle", 
                                           new Font("SansSerif", Font.BOLD, 12));
        chart.addSubtitle(subtitle);
        chart.setBackgroundPaint(new GradientPaint(0, 0, Color.white, 0, 1000, Color.blue));
        return chart;

    }

    /**
     * Creates a sample dataset.
     *
     * @return Series 1.
     */
    private IntervalXYDataset createDataset1() {

        // create dataset 1...
        TimeSeries series1 = new TimeSeries("Series 1", Day.class);
        series1.add(new Day(1, SerialDate.MARCH, 2002), 12353.3);
        series1.add(new Day(2, SerialDate.MARCH, 2002), 13734.4);
        series1.add(new Day(3, SerialDate.MARCH, 2002), 14525.3);
        series1.add(new Day(4, SerialDate.MARCH, 2002), 13984.3);
        series1.add(new Day(5, SerialDate.MARCH, 2002), 12999.4);
        series1.add(new Day(6, SerialDate.MARCH, 2002), 14274.3);
        series1.add(new Day(7, SerialDate.MARCH, 2002), 15943.5);
        series1.add(new Day(8, SerialDate.MARCH, 2002), 14845.3);
        series1.add(new Day(9, SerialDate.MARCH, 2002), 14645.4);
        series1.add(new Day(10, SerialDate.MARCH, 2002), 16234.6);
        series1.add(new Day(11, SerialDate.MARCH, 2002), 17232.3);
        series1.add(new Day(12, SerialDate.MARCH, 2002), 14232.2);
        series1.add(new Day(13, SerialDate.MARCH, 2002), 13102.2);
        series1.add(new Day(14, SerialDate.MARCH, 2002), 14230.2);
        series1.add(new Day(15, SerialDate.MARCH, 2002), 11235.2);

        TimeSeriesCollection collection = new TimeSeriesCollection(series1);
        collection.setDomainIsPointsInTime(false);  // this tells the time series collection that
                                                    // we intend the data to represent time periods
                                                    // NOT points in time.  This is required when
                                                    // determining the min/max values in the
                                                    // dataset's domain.
        return collection;

    }

    /**
     * Creates a sample dataset.
     *
     * @return Series 2.
     */
    private XYDataset createDataset2() {

        // create dataset 2...
        TimeSeries series2 = new TimeSeries("Series 2", Day.class);

        series2.add(new Day(3, SerialDate.MARCH, 2002), 16853.2);
        series2.add(new Day(4, SerialDate.MARCH, 2002), 19642.3);
        series2.add(new Day(5, SerialDate.MARCH, 2002), 18253.5);
        series2.add(new Day(6, SerialDate.MARCH, 2002), 15352.3);
        series2.add(new Day(7, SerialDate.MARCH, 2002), 13532.0);
        series2.add(new Day(8, SerialDate.MARCH, 2002), 12635.3);
        series2.add(new Day(9, SerialDate.MARCH, 2002), 13998.2);
        series2.add(new Day(10, SerialDate.MARCH, 2002), 11943.2);
        series2.add(new Day(11, SerialDate.MARCH, 2002), 16943.9);
        series2.add(new Day(12, SerialDate.MARCH, 2002), 17843.2);
        series2.add(new Day(13, SerialDate.MARCH, 2002), 16495.3);
        series2.add(new Day(14, SerialDate.MARCH, 2002), 17943.6);
        series2.add(new Day(15, SerialDate.MARCH, 2002), 18500.7);
        series2.add(new Day(16, SerialDate.MARCH, 2002), 19595.9);

        return new TimeSeriesCollection(series2);

    }

    /**
     * Starting point for the demonstration application.
     *
     * @param args  ignored.
     */
    public static void main(String[] args) {

        CombinedXYPlotDemo3 demo = new CombinedXYPlotDemo3("Combined XY Plot Demo 3");
        demo.pack();
        RefineryUtilities.centerFrameOnScreen(demo);
        demo.setVisible(true);

    }

}