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JFreeChart is a class library, written in Java, for generating charts.
Utilising the Java2D API, it supports a wide range of chart types including
bar charts, pie charts, line charts, XY-plots, time series plots, Sankey charts
and more.
/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2011, 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.]
*
* -----------------------
* XYIntervalDataItem.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 org.jfree.data.ComparableObjectItem;
/**
* An item representing data in the form (x, x-low, x-high, y, y-low, y-high).
*
* @since 1.0.3
*/
public class XYIntervalDataItem extends ComparableObjectItem {
/**
* Creates a new instance of XYIntervalItem.
*
* @param x the x-value.
* @param xLow the lower bound of the x-interval.
* @param xHigh the upper bound of the x-interval.
* @param y the y-value.
* @param yLow the lower bound of the y-interval.
* @param yHigh the upper bound of the y-interval.
*/
public XYIntervalDataItem(double x, double xLow, double xHigh, double y,
double yLow, double yHigh) {
super(new Double(x), new XYInterval(xLow, xHigh, y, yLow, yHigh));
}
/**
* Returns the x-value.
*
* @return The x-value (never null).
*/
public Double getX() {
return (Double) getComparable();
}
/**
* Returns the y-value.
*
* @return The y-value.
*/
public double getYValue() {
XYInterval interval = (XYInterval) getObject();
if (interval != null) {
return interval.getY();
}
else {
return Double.NaN;
}
}
/**
* Returns the lower bound of the x-interval.
*
* @return The lower bound of the x-interval.
*/
public double getXLowValue() {
XYInterval interval = (XYInterval) getObject();
if (interval != null) {
return interval.getXLow();
}
else {
return Double.NaN;
}
}
/**
* Returns the upper bound of the x-interval.
*
* @return The upper bound of the x-interval.
*/
public double getXHighValue() {
XYInterval interval = (XYInterval) getObject();
if (interval != null) {
return interval.getXHigh();
}
else {
return Double.NaN;
}
}
/**
* Returns the lower bound of the y-interval.
*
* @return The lower bound of the y-interval.
*/
public double getYLowValue() {
XYInterval interval = (XYInterval) getObject();
if (interval != null) {
return interval.getYLow();
}
else {
return Double.NaN;
}
}
/**
* Returns the upper bound of the y-interval.
*
* @return The upper bound of the y-interval.
*/
public double getYHighValue() {
XYInterval interval = (XYInterval) getObject();
if (interval != null) {
return interval.getYHigh();
}
else {
return Double.NaN;
}
}
}