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1: /* =========================================================== 2: * JFreeChart : a free chart library for the Java(tm) platform 3: * =========================================================== 4: * 5: * (C) Copyright 2000-2007, by Object Refinery Limited and Contributors. 6: * 7: * Project Info: http://www.jfree.org/jfreechart/index.html 8: * 9: * This library is free software; you can redistribute it and/or modify it 10: * under the terms of the GNU Lesser General Public License as published by 11: * the Free Software Foundation; either version 2.1 of the License, or 12: * (at your option) any later version. 13: * 14: * This library is distributed in the hope that it will be useful, but 15: * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 16: * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 17: * License for more details. 18: * 19: * You should have received a copy of the GNU Lesser General Public 20: * License along with this library; if not, write to the Free Software 21: * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 22: * USA. 23: * 24: * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 25: * in the United States and other countries.] 26: * 27: * ---------------------- 28: * YIntervalDataItem.java 29: * ---------------------- 30: * (C) Copyright 2006, 2007, by Object Refinery Limited. 31: * 32: * Original Author: David Gilbert (for Object Refinery Limited); 33: * Contributor(s): -; 34: * 35: * Changes 36: * ------- 37: * 20-Oct-2006 : Version 1 (DG); 38: * 39: */ 40: 41: package org.jfree.data.xy; 42: 43: import org.jfree.data.ComparableObjectItem; 44: 45: /** 46: * An item representing data in the form (x, y, y-low, y-high). 47: * 48: * @since 1.0.3 49: */ 50: public class YIntervalDataItem extends ComparableObjectItem { 51: 52: /** 53: * Creates a new instance of <code>YIntervalItem</code>. 54: * 55: * @param x the x-value. 56: * @param y the y-value. 57: * @param yLow the lower bound of the y-interval. 58: * @param yHigh the upper bound of the y-interval. 59: */ 60: public YIntervalDataItem(double x, double y, double yLow, double yHigh) { 61: super(new Double(x), new YInterval(y, yLow, yHigh)); 62: } 63: 64: /** 65: * Returns the x-value. 66: * 67: * @return The x-value (never <code>null</code>). 68: */ 69: public Double getX() { 70: return (Double) getComparable(); 71: } 72: 73: /** 74: * Returns the y-value. 75: * 76: * @return The y-value. 77: */ 78: public double getYValue() { 79: YInterval interval = (YInterval) getObject(); 80: if (interval != null) { 81: return interval.getY(); 82: } 83: else { 84: return Double.NaN; 85: } 86: } 87: 88: /** 89: * Returns the lower bound of the y-interval. 90: * 91: * @return The lower bound of the y-interval. 92: */ 93: public double getYLowValue() { 94: YInterval interval = (YInterval) getObject(); 95: if (interval != null) { 96: return interval.getYLow(); 97: } 98: else { 99: return Double.NaN; 100: } 101: } 102: 103: /** 104: * Returns the upper bound of the y-interval. 105: * 106: * @return The upper bound of the y-interval. 107: */ 108: public double getYHighValue() { 109: YInterval interval = (YInterval) getObject(); 110: if (interval != null) { 111: return interval.getYHigh(); 112: } 113: else { 114: return Double.NaN; 115: } 116: } 117: 118: }