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JFreeChart is a class library, written in Java, for generating charts.
Utilising the Java2D APIs, it currently supports bar charts, pie charts,
line charts, XY-plots and time series plots.
/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2013, 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.
*
* [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
* Other names may be trademarks of their respective owners.]
*
* -------------------
* YWithXInterval.java
* -------------------
* (C) Copyright 2006-2008, by Object Refinery Limited.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* Changes
* -------
* 20-Oct-2006 : Version 1 (DG);
*
*/
package org.jfree.data.xy;
import java.io.Serializable;
/**
* A y-value plus the bounds for the related x-interval. This curious
* combination exists as an implementation detail, to fit into the structure
* of the ComparableObjectSeries class. It would have been possible to
* simply reuse the {@link YInterval} class by assuming that the y-interval
* in fact represents the x-interval, however I decided it was better to
* duplicate some code in order to document the real intent.
*
* @since 1.0.3
*/
public class YWithXInterval implements Serializable {
/** The y-value. */
private double y;
/** The lower bound of the x-interval. */
private double xLow;
/** The upper bound of the x-interval. */
private double xHigh;
/**
* Creates a new instance of YWithXInterval.
*
* @param y the y-value.
* @param xLow the lower bound of the x-interval.
* @param xHigh the upper bound of the x-interval.
*/
public YWithXInterval(double y, double xLow, double xHigh) {
this.y = y;
this.xLow = xLow;
this.xHigh = xHigh;
}
/**
* Returns the y-value.
*
* @return The y-value.
*/
public double getY() {
return this.y;
}
/**
* Returns the lower bound of the x-interval.
*
* @return The lower bound of the x-interval.
*/
public double getXLow() {
return this.xLow;
}
/**
* Returns the upper bound of the x-interval.
*
* @return The upper bound of the x-interval.
*/
public double getXHigh() {
return this.xHigh;
}
/**
* Tests this instance for equality with an arbitrary object.
*
* @param obj the object (null permitted).
*
* @return A boolean.
*/
@Override
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
if (!(obj instanceof YWithXInterval)) {
return false;
}
YWithXInterval that = (YWithXInterval) obj;
if (this.y != that.y) {
return false;
}
if (this.xLow != that.xLow) {
return false;
}
if (this.xHigh != that.xHigh) {
return false;
}
return true;
}
}