home | career | drupal | java | mac | mysql | perl | scala | uml | unix  

jfreechart example source code file (VectorSeries.java)

This example jfreechart source code file (VectorSeries.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - jfreechart tags/keywords

comparableobjectitem, comparableobjectitem, comparableobjectseries, comparableobjectseries, vectordataitem, vectordataitem, vectorseries, vectorseries

The jfreechart VectorSeries.java source code

/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2008, 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
 * USA.
 *
 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
 * in the United States and other countries.]
 *
 * -----------------
 * VectorSeries.java
 * -----------------
 * (C) Copyright 2007, 2008, by Object Refinery Limited.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes
 * -------
 * 30-Jan-2007 : Version 1 (DG);
 * 24-May-2007 : Renamed getDeltaXValue() --> getVectorXValue(), and likewise
 *               for getDeltaYValue() (DG);
 * 25-May-2007 : Added remove(int) and clear() methods, and moved from the
 *               experimental to the main source tree (DG);
 * 27-Nov-2007 : Removed redundant clear() method (DG);
 *
 */

package org.jfree.data.xy;

import org.jfree.data.ComparableObjectItem;
import org.jfree.data.ComparableObjectSeries;
import org.jfree.data.general.SeriesChangeEvent;

/**
 * A list of (x,y, deltaX, deltaY) data items.
 *
 * @since 1.0.6
 *
 * @see VectorSeriesCollection
 */
public class VectorSeries extends ComparableObjectSeries {

    /**
     * Creates a new empty series.
     *
     * @param key  the series key (<code>null not permitted).
     */
    public VectorSeries(Comparable key) {
        this(key, false, true);
    }

    /**
     * Constructs a new series that contains no data.  You can specify
     * whether or not duplicate x-values are allowed for the series.
     *
     * @param key  the series key (<code>null not permitted).
     * @param autoSort  a flag that controls whether or not the items in the
     *                  series are sorted.
     * @param allowDuplicateXValues  a flag that controls whether duplicate
     *                               x-values are allowed.
     */
    public VectorSeries(Comparable key, boolean autoSort,
            boolean allowDuplicateXValues) {
        super(key, autoSort, allowDuplicateXValues);
    }

    /**
     * Adds a data item to the series.
     *
     * @param x  the x-value.
     * @param y  the y-value.
     * @param deltaX  the vector x.
     * @param deltaY  the vector y.
     */
    public void add(double x, double y, double deltaX, double deltaY) {
        super.add(new VectorDataItem(x, y, deltaX, deltaY), true);
    }

    /**
     * Removes the item at the specified index and sends a
     * {@link SeriesChangeEvent} to all registered listeners.
     *
     * @param index  the index.
     *
     * @return The item removed.
     */
    public ComparableObjectItem remove(int index) {
        VectorDataItem result = (VectorDataItem) this.data.remove(index);
        fireSeriesChanged();
        return result;
    }

    /**
     * Returns the x-value for the specified item.
     *
     * @param index  the item index.
     *
     * @return The x-value.
     */
    public double getXValue(int index) {
        VectorDataItem item = (VectorDataItem) this.getDataItem(index);
        return item.getXValue();
    }

    /**
     * Returns the y-value for the specified item.
     *
     * @param index  the item index.
     *
     * @return The y-value.
     */
    public double getYValue(int index) {
        VectorDataItem item = (VectorDataItem) getDataItem(index);
        return item.getYValue();
    }

    /**
     * Returns the x-component of the vector for an item in the series.
     *
     * @param index  the item index.
     *
     * @return The x-component of the vector.
     */
    public double getVectorXValue(int index) {
        VectorDataItem item = (VectorDataItem) getDataItem(index);
        return item.getVectorX();
    }

    /**
     * Returns the y-component of the vector for an item in the series.
     *
     * @param index  the item index.
     *
     * @return The y-component of the vector.
     */
    public double getVectorYValue(int index) {
        VectorDataItem item = (VectorDataItem) getDataItem(index);
        return item.getVectorY();
    }

    /**
     * Returns the data item at the specified index.
     *
     * @param index  the item index.
     *
     * @return The data item.
     */
    public ComparableObjectItem getDataItem(int index) {
        // overridden to make public
        return super.getDataItem(index);
    }

}

Other jfreechart examples (source code examples)

Here is a short list of links related to this jfreechart VectorSeries.java source code file:



my book on functional programming

 

new blog posts

 

Copyright 1998-2021 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.