mirror of https://github.com/octoleo/plantuml.git
94 lines
2.9 KiB
Java
94 lines
2.9 KiB
Java
/*
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* Copyright 2003-2004, Franz-Josef Elmer, All rights reserved
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*
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* This library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details
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* (http://www.gnu.org/copyleft/lesser.html).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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package jcckit.data;
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import jcckit.util.ConfigParameters;
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/**
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* A curve is a {@link DataContainer} of {@link DataPoint DataPoints}.
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*
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* @author Franz-Josef Elmer
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*/
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public class DataCurve extends DataContainer implements DataElement {
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/** Config parameter key. */
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public static final String X_KEY = "x",
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Y_KEY = "y",
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TITLE_KEY = "title";
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private final String _title;
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private DataContainer _container;
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/** Creates an empty instance with the specified title. */
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public DataCurve(String title) {
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_title = title;
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}
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/**
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* Creates an instance from the specified config parameters.
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* <table border=1 cellpadding=5>
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* <tr><th>Key & Default Value</th><th>Type</th><th>Mandatory</th>
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* <th>Description</th></tr>
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* <tr><td><tt>title = </tt><i>empty string</i></td>
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* <td><tt>String</tt></td><td>no</td>
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* <td>Curve title.</td></tr>
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* <tr><td><tt>x</tt></td><td><tt>double[]</tt></td><td>yes</td>
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* <td>x-coordinates of the curve points.</td></tr>
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* <tr><td><tt>y</tt></td><td><tt>double[]</tt></td><td>yes</td>
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* <td>y-coordinates of the curve points.</td></tr>
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* </table>
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*/
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public DataCurve(ConfigParameters config) {
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this(config.get(TITLE_KEY, ""));
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double[] xPoints = config.getDoubleArray(X_KEY);
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double[] yPoints = config.getDoubleArray(Y_KEY);
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int n = Math.min(xPoints.length, yPoints.length);
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for (int i = 0; i < n; i++) {
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addElement(new DataPoint(xPoints[i], yPoints[i]));
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}
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}
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/**
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* Returns the {@link DataPlot} containing this curve.
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*/
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public DataContainer getContainer() {
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return _container;
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}
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/**
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* Sets the {@link DataPlot} where this is a curve of.
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*/
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public void setContainer(DataContainer container) {
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_container = container;
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}
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/** Returns the title of this curve. */
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public String getTitle() {
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return _title;
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}
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/**
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* Returns <tt>true</tt> if <tt>element</tt> is an instance of
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* {@link DataPoint}.
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*/
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protected boolean isValid(DataElement element) {
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return element instanceof DataPoint;
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}
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}
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