stackedbarchartdemo4.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.]
 *
 * -------------------------
 * StackedBarChartDemo4.java
 * -------------------------
 * (C) Copyright 2004, by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * $Id: StackedBarChartDemo4.java,v 1.6 2004/05/12 16:01:58 mungady Exp $
 *
 * Changes
 * -------
 * 29-Apr-2004 : Version 1 (DG);
 *
 */

package org.jfree.chart.demo;

import java.awt.Color;
import java.awt.GradientPaint;
import java.awt.Paint;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.LegendItem;
import org.jfree.chart.LegendItemCollection;
import org.jfree.chart.axis.SubCategoryAxis;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.GroupedStackedBarRenderer;
import org.jfree.data.CategoryDataset;
import org.jfree.data.DefaultCategoryDataset;
import org.jfree.data.KeyToGroupMap;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.GradientPaintTransformType;
import org.jfree.ui.RefineryUtilities;
import org.jfree.ui.StandardGradientPaintTransformer;

/**
 * A simple demonstration application showing how to create a stacked bar chart
 * using data from a {@link CategoryDataset}.
 */
public class StackedBarChartDemo4 extends ApplicationFrame {

    /**
     * Creates a new demo.
     *
     * @param title  the frame title.
     */
    public StackedBarChartDemo4(final String title) {
        super(title);
        final CategoryDataset dataset = createDataset();
        final JFreeChart chart = createChart(dataset);
        final ChartPanel chartPanel = new ChartPanel(chart);
        chartPanel.setPreferredSize(new java.awt.Dimension(590, 350));
        setContentPane(chartPanel);
    }
    
    /**
     * Creates a sample dataset.
     * 
     * @return A sample dataset.
     */
    private CategoryDataset createDataset() {
        DefaultCategoryDataset result = new DefaultCategoryDataset();

        result.addValue(20.3, "Product 1 (US)", "Jan 04");
        result.addValue(27.2, "Product 1 (US)", "Feb 04");
        result.addValue(19.7, "Product 1 (US)", "Mar 04");
        result.addValue(19.4, "Product 1 (Europe)", "Jan 04");
        result.addValue(10.9, "Product 1 (Europe)", "Feb 04");
        result.addValue(18.4, "Product 1 (Europe)", "Mar 04");
        result.addValue(16.5, "Product 1 (Asia)", "Jan 04");
        result.addValue(15.9, "Product 1 (Asia)", "Feb 04");
        result.addValue(16.1, "Product 1 (Asia)", "Mar 04");
        result.addValue(13.2, "Product 1 (Middle East)", "Jan 04");
        result.addValue(14.4, "Product 1 (Middle East)", "Feb 04");
        result.addValue(13.7, "Product 1 (Middle East)", "Mar 04");

        result.addValue(23.3, "Product 2 (US)", "Jan 04");
        result.addValue(16.2, "Product 2 (US)", "Feb 04");
        result.addValue(28.7, "Product 2 (US)", "Mar 04");
        result.addValue(12.7, "Product 2 (Europe)", "Jan 04");
        result.addValue(17.9, "Product 2 (Europe)", "Feb 04");
        result.addValue(12.6, "Product 2 (Europe)", "Mar 04");
        result.addValue(15.4, "Product 2 (Asia)", "Jan 04");
        result.addValue(21.0, "Product 2 (Asia)", "Feb 04");
        result.addValue(11.1, "Product 2 (Asia)", "Mar 04");
        result.addValue(23.8, "Product 2 (Middle East)", "Jan 04");
        result.addValue(23.4, "Product 2 (Middle East)", "Feb 04");
        result.addValue(19.3, "Product 2 (Middle East)", "Mar 04");

        result.addValue(11.9, "Product 3 (US)", "Jan 04");
        result.addValue(31.0, "Product 3 (US)", "Feb 04");
        result.addValue(22.7, "Product 3 (US)", "Mar 04");
        result.addValue(15.3, "Product 3 (Europe)", "Jan 04");
        result.addValue(14.4, "Product 3 (Europe)", "Feb 04");
        result.addValue(25.3, "Product 3 (Europe)", "Mar 04");
        result.addValue(23.9, "Product 3 (Asia)", "Jan 04");
        result.addValue(19.0, "Product 3 (Asia)", "Feb 04");
        result.addValue(10.1, "Product 3 (Asia)", "Mar 04");
        result.addValue(13.2, "Product 3 (Middle East)", "Jan 04");
        result.addValue(15.5, "Product 3 (Middle East)", "Feb 04");
        result.addValue(10.1, "Product 3 (Middle East)", "Mar 04");
        
        return result;
    }
    
    /**
     * Creates a sample chart.
     * 
     * @param dataset  the dataset for the chart.
     * 
     * @return A sample chart.
     */
    private JFreeChart createChart(final CategoryDataset dataset) {

        final JFreeChart chart = ChartFactory.createStackedBarChart(
            "Stacked Bar Chart Demo 4",  // chart title
            "Category",                  // domain axis label
            "Value",                     // range axis label
            dataset,                     // data
            PlotOrientation.VERTICAL,    // the plot orientation
            true,                        // legend
            true,                        // tooltips
            false                        // urls
        );
        
        GroupedStackedBarRenderer renderer = new GroupedStackedBarRenderer();
        KeyToGroupMap map = new KeyToGroupMap("G1");
        map.mapKeyToGroup("Product 1 (US)", "G1");
        map.mapKeyToGroup("Product 1 (Europe)", "G1");
        map.mapKeyToGroup("Product 1 (Asia)", "G1");
        map.mapKeyToGroup("Product 1 (Middle East)", "G1");
        map.mapKeyToGroup("Product 2 (US)", "G2");
        map.mapKeyToGroup("Product 2 (Europe)", "G2");
        map.mapKeyToGroup("Product 2 (Asia)", "G2");
        map.mapKeyToGroup("Product 2 (Middle East)", "G2");
        map.mapKeyToGroup("Product 3 (US)", "G3");
        map.mapKeyToGroup("Product 3 (Europe)", "G3");
        map.mapKeyToGroup("Product 3 (Asia)", "G3");
        map.mapKeyToGroup("Product 3 (Middle East)", "G3");
        renderer.setSeriesToGroupMap(map); 
        
        renderer.setItemMargin(0.0);
        Paint p1 = new GradientPaint(
            0.0f, 0.0f, new Color(0x22, 0x22, 0xFF), 0.0f, 0.0f, new Color(0x88, 0x88, 0xFF)
        );
        renderer.setSeriesPaint(0, p1);
        renderer.setSeriesPaint(4, p1);
        renderer.setSeriesPaint(8, p1);
         
        Paint p2 = new GradientPaint(
            0.0f, 0.0f, new Color(0x22, 0xFF, 0x22), 0.0f, 0.0f, new Color(0x88, 0xFF, 0x88)
        );
        renderer.setSeriesPaint(1, p2); 
        renderer.setSeriesPaint(5, p2); 
        renderer.setSeriesPaint(9, p2); 
        
        Paint p3 = new GradientPaint(
            0.0f, 0.0f, new Color(0xFF, 0x22, 0x22), 0.0f, 0.0f, new Color(0xFF, 0x88, 0x88)
        );
        renderer.setSeriesPaint(2, p3);
        renderer.setSeriesPaint(6, p3);
        renderer.setSeriesPaint(10, p3);
            
        Paint p4 = new GradientPaint(
            0.0f, 0.0f, new Color(0xFF, 0xFF, 0x22), 0.0f, 0.0f, new Color(0xFF, 0xFF, 0x88)
        );
        renderer.setSeriesPaint(3, p4);
        renderer.setSeriesPaint(7, p4);
        renderer.setSeriesPaint(11, p4);
        renderer.setGradientPaintTransformer(
            new StandardGradientPaintTransformer(GradientPaintTransformType.HORIZONTAL)
        );
        
        SubCategoryAxis domainAxis = new SubCategoryAxis("Product / Month");
        domainAxis.setCategoryMargin(0.05);
        domainAxis.addSubCategory("Product 1");
        domainAxis.addSubCategory("Product 2");
        domainAxis.addSubCategory("Product 3");
        
        CategoryPlot plot = (CategoryPlot) chart.getPlot();
        plot.setDomainAxis(domainAxis);
        //plot.setDomainAxisLocation(AxisLocation.TOP_OR_RIGHT);
        plot.setRenderer(renderer);
        plot.setFixedLegendItems(createLegendItems());
        return chart;
        
    }

    /**
     * Creates the legend items for the chart.  In this case, we set them manually because we
     * only want legend items for a subset of the data series.
     * 
     * @return The legend items.
     */
    private LegendItemCollection createLegendItems() {
        LegendItemCollection result = new LegendItemCollection();
        LegendItem item1 = new LegendItem("US", new Color(0x22, 0x22, 0xFF));
        LegendItem item2 = new LegendItem("Europe", new Color(0x22, 0xFF, 0x22));
        LegendItem item3 = new LegendItem("Asia", new Color(0xFF, 0x22, 0x22));
        LegendItem item4 = new LegendItem("Middle East", new Color(0xFF, 0xFF, 0x22));
        result.add(item1);
        result.add(item2);
        result.add(item3);
        result.add(item4);
        return result;
    }
    
    // ****************************************************************************
    // * 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 StackedBarChartDemo4 demo = new StackedBarChartDemo4("Stacked Bar Chart Demo 4");
        demo.pack();
        RefineryUtilities.centerFrameOnScreen(demo);
        demo.setVisible(true);
    }

}