barchart3ddemo2.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.]
 *
 * --------------------
 * BarChart3DDemo2.java
 * --------------------
 * (C) Copyright 2002-2004, by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * $Id: BarChart3DDemo2.java,v 1.20 2004/04/26 19:11:53 taqua Exp $
 *
 * Changes
 * -------
 * 29-May-2002 : Version 1 (DG);
 * 10-Oct-2002 : Fixed errors reported by Checkstyle (DG);
 * 05-Nov-2002 : Renamed HorizontalBarChart3DDemo.java (DG);
 * 13-May-2003 : Renamed BarChart3DDemo2.java (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.CategoryAxis;
import org.jfree.chart.axis.CategoryLabelPosition;
import org.jfree.chart.axis.CategoryLabelPositions;
import org.jfree.chart.axis.CategoryLabelWidthType;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.data.CategoryDataset;
import org.jfree.data.DefaultCategoryDataset;
import org.jfree.text.TextBlockAnchor;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RectangleAnchor;
import org.jfree.ui.RefineryUtilities;
import org.jfree.ui.TextAnchor;
import org.jfree.util.Log;
import org.jfree.util.PrintStreamLogTarget;

/**
 * A simple demonstration application showing how to create a horizontal 3D bar chart using data
 * from a {@link CategoryDataset}.
 *
 */
public class BarChart3DDemo2 extends ApplicationFrame {

    // ****************************************************************************
    // * 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.             *
    // ****************************************************************************
    
    /**
     * Creates a new demo.
     *
     * @param title  the frame title.
     */
    public BarChart3DDemo2(final String title) {

        super(title);
        
        // create the chart...
        final DefaultCategoryDataset dataset = new DefaultCategoryDataset();
        dataset.addValue(23.0, "Series 1", "London");
        dataset.addValue(14.0, "Series 1", "New York");
        dataset.addValue(14.0, "Series 1", "Istanbul");
        dataset.addValue(14.0, "Series 1", "Cairo");
        dataset.addValue(13.0, "Series 2", "London");
        dataset.addValue(19.0, "Series 2", "New York");
        dataset.addValue(19.0, "Series 2", "Istanbul");
        dataset.addValue(19.0, "Series 2", "Cairo");
        dataset.addValue(7.0, "Series 3", "London");
        dataset.addValue(9.0, "Series 3", "New York");
        dataset.addValue(9.0, "Series 3", "Istanbul");
        dataset.addValue(9.0, "Series 3", "Cairo");
        
        final JFreeChart chart = createChart(dataset);
        
        // add the chart to a panel...
        final ChartPanel chartPanel = new ChartPanel(chart);
        chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
        setContentPane(chartPanel);

    }

    /**
     * Creates a chart.
     * 
     * @param dataset  the dataset.
     * 
     * @return The chart.
     */
    private JFreeChart createChart(final CategoryDataset dataset) {
        
        final JFreeChart chart = ChartFactory.createBarChart3D(
            "3D Bar Chart Demo 2",       // chart title
            "Category",                  // domain axis label
            "Value",                     // range axis label
            dataset,                     // data
            PlotOrientation.HORIZONTAL,  // orientation
            true,                        // include legend
            true,                        // tooltips
            false                        // urls
        );

        final CategoryPlot plot = chart.getCategoryPlot();
        plot.setForegroundAlpha(1.0f);

        // left align the category labels...
        final CategoryAxis axis = plot.getDomainAxis();
        final CategoryLabelPositions p = axis.getCategoryLabelPositions();
        
        final CategoryLabelPosition left = new CategoryLabelPosition(
            RectangleAnchor.LEFT, TextBlockAnchor.CENTER_LEFT, 
            TextAnchor.CENTER_LEFT, 0.0,
            CategoryLabelWidthType.RANGE, 0.30f
        );
        axis.setCategoryLabelPositions(CategoryLabelPositions.replaceLeftPosition(p, left));
        
        return chart;        
    
    }
    
    /**
     * Starting point for the demonstration application.
     *
     * @param args  ignored.
     */
    public static void main(final String[] args) {

        Log.getInstance().addTarget(new PrintStreamLogTarget());
        final BarChart3DDemo2 demo = new BarChart3DDemo2("3D Bar Chart Demo 2");
        demo.pack();
        RefineryUtilities.centerFrameOnScreen(demo);
        demo.setVisible(true);

    }

}