samplexysymbolicdataset.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.]
 *
 * ----------------------------
 * SampleXYSymbolicDataset.java
 * ----------------------------
 * (C) Copyright 2000-2004, by Anthony Boulestreau and Contributors;
 *
 * Original Author:  Anthony Boulestreau.
 * Contributor(s):   David Gilbert (for Object Refinery Limited);
 *
 * Changes
 * -------
 * 29-Mar-2002 : Version 1 (AB);
 * 11-Oct-2002 : Fixed errors reported by Checkstyle (DG);
 *
 */

package org.jfree.chart.demo;

import java.lang.reflect.Array;
import java.util.List;
import java.util.Vector;

import org.jfree.data.AbstractSeriesDataset;
import org.jfree.data.XYDataset;
import org.jfree.data.XisSymbolic;
import org.jfree.data.YisSymbolic;

/**
 * Random data for a symbolic plot demo.
 *
 * @author Anthony Boulestreau
 */
public class SampleXYSymbolicDataset extends AbstractSeriesDataset
                                     implements XYDataset, XisSymbolic, YisSymbolic {

    /** Series names. */
    private String[] seriesName;

    /** Items. */
    private int[] item;

    /** A series index. */
    private int serie;

    /** X values. */
    private Integer[][] xValues;

    /** Y values. */
    private Integer[][] yValues;

    /** X symbolic values. */
    private String[] xSymbolicValues;

    /** Y symbolic values. */
    private String[] ySymbolicValues;

    /** The dataset name. */
    private String datasetName;

    /**
     * Creates a new dataset.
     *
     * @param datasetName  the dataset name.
     * @param xValues  the x values.
     * @param yValues  the y values.
     * @param xSymbolicValues  the x symbols.
     * @param ySymbolicValues  the y symbols.
     * @param seriesName  the series name.
     */
    public SampleXYSymbolicDataset(final String datasetName,
                                   final Integer[][] xValues,
                                   final Integer[][] yValues,
                                   final String[] xSymbolicValues,
                                   final String[] ySymbolicValues,
                                   final String[] seriesName) {

        this.datasetName = datasetName;
        this.xValues = xValues;
        this.yValues = yValues;
        this.xSymbolicValues = xSymbolicValues;
        this.ySymbolicValues = ySymbolicValues;
        this.serie = xValues.length;
        this.item = new int[this.serie];
        for (int i = 0; i < this.serie; i++) {
            this.item[i] = xValues[i].length;
        }
        this.seriesName = seriesName;

    }

    /**
     * Returns the x-value for the specified series and item.  Series are
     * numbered 0, 1, ...
     *
     * @param series  the index (zero-based) of the series.
     * @param item  the index (zero-based) of the required item.
     *
     * @return the x-value for the specified series and item.
     */
    public Number getXValue(final int series, final int item) {
        return this.xValues[series][item];
    }

    /**
     * Returns the x-value (as a double primitive) for an item within a series.
     * 
     * @param series  the series (zero-based index).
     * @param item  the item (zero-based index).
     * 
     * @return The x-value.
     */
    public double getX(int series, int item) {
        double result = Double.NaN;
        Number x = getXValue(series, item);
        if (x != null) {
            result = x.doubleValue();   
        }
        return result;   
    }

    /**
     * Returns the y-value for the specified series and item.  Series are
     * numbered 0, 1, ...
     *
     * @param series  the index (zero-based) of the series.
     * @param item  the index (zero-based) of the required item.
     *
     * @return the y-value for the specified series and item.
     */
    public Number getYValue(final int series, final int item) {
        return this.yValues[series][item];
    }

    /**
     * Returns the y-value (as a double primitive) for an item within a series.
     * 
     * @param series  the series (zero-based index).
     * @param item  the item (zero-based index).
     * 
     * @return The y-value.
     */
    public double getY(int series, int item) {
        double result = Double.NaN;
        Number y = getYValue(series, item);
        if (y != null) {
            result = y.doubleValue();   
        }
        return result;   
    }

    /**
     * Sets the x-value for the specified series and item with the specified
     * new <CODE>Number</CODE> value.  Series are numbered 0, 1, ...
     * <P>
     * This method is used by combineXSymbolicDataset to modify the reference
     * to the symbolic value ...
     *
     * @param series  the index (zero-based) of the series.
     * @param item  the index (zero-based) of the required item.
     * @param newValue  the value to set.
     */
    public void setXValue(final int series, final int item, final Number newValue) {
        this.xValues[series][item] = (Integer) newValue;
    }

    /**
     * Sets the y-value for the specified series and item with the specified
     * new <CODE>Number</CODE> value.  Series are numbered 0, 1, ...
     * <P>
     * This method is used by combineYSymbolicDataset to modify the reference
     * to the symbolic value ...
     *
     * @param series  the index (zero-based) of the series.
     * @param item  the index (zero-based) of the required item.
     * @param newValue  the value to set.
     */
    public void setYValue(final int series, final int item, final Number newValue) {
        this.yValues[series][item] = (Integer) newValue;
    }

    /**
     * Returns the number of series in the dataset.
     *
     * @return The number of series in the dataset.
     */
    public int getSeriesCount() {
        return this.serie;
    }

    /**
     * Returns the name of the series.
     *
     * @param series  the index (zero-based) of the series.
     *
     * @return the name of the series.
     */
    public String getSeriesName(final int series) {
        if (this.seriesName != null) {
            return this.seriesName[series];
        }
        else {
            return this.datasetName + series;
        }
    }

    /**
     * Returns the number of items in the specified series.
     *
     * @param series  the index (zero-based) of the series.
     * @return the number of items in the specified series.
     */
    public int getItemCount(final int series) {
        return this.item[series];
    }

    /**
     * Returns the list of X symbolic values.
     *
     * @return array of symbolic value.
     */
    public String[] getXSymbolicValues() {