highlowchartdemo2.java

这是一个segy数据显示程序

/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2004, by Object Refinery Limited and Contributors.
 *
 * Project Info:  http://www.jfree.org/jfreechart/index.html
 *
 * 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.
 *
 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
 * in the United States and other countries.]
 *
 * ----------------------
 * HighLowChartDemo2.java
 * ----------------------
 * (C) Copyright 2003, 2004, by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * $Id: HighLowChartDemo2.java,v 1.7 2004/04/27 14:53:10 mungady Exp $
 *
 * Changes
 * -------
 * 03-Dec-2003 : Version 1 (DG);
 *
 */

package org.jfree.chart.demo;

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.axis.DateTickMarkPosition;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.StandardXYItemRenderer;
import org.jfree.data.HighLowDataset;
import org.jfree.data.MovingAverage;
import org.jfree.data.XYDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;

/**
 * A demo showing a high-low-open-close chart with a moving average overlaid on top.
 *
 */
public class HighLowChartDemo2 extends ApplicationFrame {

    /**
     * A demonstration application showing a high-low-open-close chart.
     *
     * @param title  the frame title.
     */
    public HighLowChartDemo2(final String title) {

        super(title);

        final HighLowDataset dataset = createDataset();
        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.
     */
    private HighLowDataset createDataset() {
        return  DemoDatasetFactory.createHighLowDataset();
    }

    /**
     * Creates a sample chart.
     * 
     * @param dataset  a dataset.
     * 
     * @return a sample chart.
     */
    private JFreeChart createChart(final HighLowDataset dataset) {
        
        final JFreeChart chart = ChartFactory.createHighLowChart(
            "OHLC Demo 2",
            "Time", 
            "Value",
            dataset, 
            true
        );
        
        final DateAxis axis = (DateAxis) chart.getXYPlot().getDomainAxis();
        axis.setTickMarkPosition(DateTickMarkPosition.MIDDLE);

        final XYDataset dataset2 = MovingAverage.createMovingAverage(
            dataset, "-MAVG", 3 * 24 * 60 * 60 * 1000L, 0L
        );
        final XYPlot plot = (XYPlot) chart.getPlot();
        plot.setDataset(1, dataset2);
        plot.setRenderer(1, new StandardXYItemRenderer());
        
        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.             *
    // ****************************************************************************
    
    /**
     * Starting point for the demonstration application.
     *
     * @param args  ignored.
     */
    public static void main(final String[] args) {

        final HighLowChartDemo2 demo = new HighLowChartDemo2("OHLC Demo 2");
        demo.pack();
        RefineryUtilities.centerFrameOnScreen(demo);
        demo.setVisible(true);

    }

}