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- <pre><span class="sourceLineNo">001</span>/* ===========================================================<a name="line.1"></a>
- <span class="sourceLineNo">002</span> * JFreeChart : a free chart library for the Java(tm) platform<a name="line.2"></a>
- <span class="sourceLineNo">003</span> * ===========================================================<a name="line.3"></a>
- <span class="sourceLineNo">004</span> *<a name="line.4"></a>
- <span class="sourceLineNo">005</span> * (C) Copyright 2000-2013, by Object Refinery Limited and Contributors.<a name="line.5"></a>
- <span class="sourceLineNo">006</span> *<a name="line.6"></a>
- <span class="sourceLineNo">007</span> * Project Info: http://www.jfree.org/jfreechart/index.html<a name="line.7"></a>
- <span class="sourceLineNo">008</span> *<a name="line.8"></a>
- <span class="sourceLineNo">009</span> * This library is free software; you can redistribute it and/or modify it<a name="line.9"></a>
- <span class="sourceLineNo">010</span> * under the terms of the GNU Lesser General Public License as published by<a name="line.10"></a>
- <span class="sourceLineNo">011</span> * the Free Software Foundation; either version 2.1 of the License, or<a name="line.11"></a>
- <span class="sourceLineNo">012</span> * (at your option) any later version.<a name="line.12"></a>
- <span class="sourceLineNo">013</span> *<a name="line.13"></a>
- <span class="sourceLineNo">014</span> * This library is distributed in the hope that it will be useful, but<a name="line.14"></a>
- <span class="sourceLineNo">015</span> * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY<a name="line.15"></a>
- <span class="sourceLineNo">016</span> * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public<a name="line.16"></a>
- <span class="sourceLineNo">017</span> * License for more details.<a name="line.17"></a>
- <span class="sourceLineNo">018</span> *<a name="line.18"></a>
- <span class="sourceLineNo">019</span> * You should have received a copy of the GNU Lesser General Public<a name="line.19"></a>
- <span class="sourceLineNo">020</span> * License along with this library; if not, write to the Free Software<a name="line.20"></a>
- <span class="sourceLineNo">021</span> * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,<a name="line.21"></a>
- <span class="sourceLineNo">022</span> * USA.<a name="line.22"></a>
- <span class="sourceLineNo">023</span> *<a name="line.23"></a>
- <span class="sourceLineNo">024</span> * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. <a name="line.24"></a>
- <span class="sourceLineNo">025</span> * Other names may be trademarks of their respective owners.]<a name="line.25"></a>
- <span class="sourceLineNo">026</span> *<a name="line.26"></a>
- <span class="sourceLineNo">027</span> * ---------------------<a name="line.27"></a>
- <span class="sourceLineNo">028</span> * HeatMapUtilities.java<a name="line.28"></a>
- <span class="sourceLineNo">029</span> * ---------------------<a name="line.29"></a>
- <span class="sourceLineNo">030</span> * (C) Copyright 2009-2013, by Object Refinery Limited.<a name="line.30"></a>
- <span class="sourceLineNo">031</span> *<a name="line.31"></a>
- <span class="sourceLineNo">032</span> * Original Author: David Gilbert (for Object Refinery Limited);<a name="line.32"></a>
- <span class="sourceLineNo">033</span> * Contributor(s): -;<a name="line.33"></a>
- <span class="sourceLineNo">034</span> *<a name="line.34"></a>
- <span class="sourceLineNo">035</span> * Changes:<a name="line.35"></a>
- <span class="sourceLineNo">036</span> * --------<a name="line.36"></a>
- <span class="sourceLineNo">037</span> * 28-Jan-2009 : Version 1 (DG);<a name="line.37"></a>
- <span class="sourceLineNo">038</span> * 03-Jul-2013 : Use ParamChecks (DG);<a name="line.38"></a>
- <span class="sourceLineNo">039</span> *<a name="line.39"></a>
- <span class="sourceLineNo">040</span> */<a name="line.40"></a>
- <span class="sourceLineNo">041</span><a name="line.41"></a>
- <span class="sourceLineNo">042</span>package org.jfree.data.general;<a name="line.42"></a>
- <span class="sourceLineNo">043</span><a name="line.43"></a>
- <span class="sourceLineNo">044</span>import java.awt.Graphics2D;<a name="line.44"></a>
- <span class="sourceLineNo">045</span>import java.awt.Paint;<a name="line.45"></a>
- <span class="sourceLineNo">046</span>import java.awt.image.BufferedImage;<a name="line.46"></a>
- <span class="sourceLineNo">047</span>import org.jfree.chart.renderer.PaintScale;<a name="line.47"></a>
- <span class="sourceLineNo">048</span>import org.jfree.chart.util.ParamChecks;<a name="line.48"></a>
- <span class="sourceLineNo">049</span>import org.jfree.data.xy.XYDataset;<a name="line.49"></a>
- <span class="sourceLineNo">050</span>import org.jfree.data.xy.XYSeries;<a name="line.50"></a>
- <span class="sourceLineNo">051</span>import org.jfree.data.xy.XYSeriesCollection;<a name="line.51"></a>
- <span class="sourceLineNo">052</span><a name="line.52"></a>
- <span class="sourceLineNo">053</span>/**<a name="line.53"></a>
- <span class="sourceLineNo">054</span> * A utility class for the {@link HeatMapDataset}.<a name="line.54"></a>
- <span class="sourceLineNo">055</span> *<a name="line.55"></a>
- <span class="sourceLineNo">056</span> * @since 1.0.13<a name="line.56"></a>
- <span class="sourceLineNo">057</span> */<a name="line.57"></a>
- <span class="sourceLineNo">058</span>public abstract class HeatMapUtilities {<a name="line.58"></a>
- <span class="sourceLineNo">059</span><a name="line.59"></a>
- <span class="sourceLineNo">060</span> /**<a name="line.60"></a>
- <span class="sourceLineNo">061</span> * Returns a dataset containing one series that holds a copy of the (x, z)<a name="line.61"></a>
- <span class="sourceLineNo">062</span> * data from one row (y-index) of the specified dataset.<a name="line.62"></a>
- <span class="sourceLineNo">063</span> *<a name="line.63"></a>
- <span class="sourceLineNo">064</span> * @param dataset the dataset (<code>null</code> not permitted).<a name="line.64"></a>
- <span class="sourceLineNo">065</span> * @param row the row (y) index.<a name="line.65"></a>
- <span class="sourceLineNo">066</span> * @param seriesName the series name/key (<code>null</code> not permitted).<a name="line.66"></a>
- <span class="sourceLineNo">067</span> *<a name="line.67"></a>
- <span class="sourceLineNo">068</span> * @return The dataset.<a name="line.68"></a>
- <span class="sourceLineNo">069</span> */<a name="line.69"></a>
- <span class="sourceLineNo">070</span> public static XYDataset extractRowFromHeatMapDataset(HeatMapDataset dataset,<a name="line.70"></a>
- <span class="sourceLineNo">071</span> int row, Comparable seriesName) {<a name="line.71"></a>
- <span class="sourceLineNo">072</span> XYSeries series = new XYSeries(seriesName);<a name="line.72"></a>
- <span class="sourceLineNo">073</span> int cols = dataset.getXSampleCount();<a name="line.73"></a>
- <span class="sourceLineNo">074</span> for (int c = 0; c < cols; c++) {<a name="line.74"></a>
- <span class="sourceLineNo">075</span> series.add(dataset.getXValue(c), dataset.getZValue(c, row));<a name="line.75"></a>
- <span class="sourceLineNo">076</span> }<a name="line.76"></a>
- <span class="sourceLineNo">077</span> XYSeriesCollection result = new XYSeriesCollection(series);<a name="line.77"></a>
- <span class="sourceLineNo">078</span> return result;<a name="line.78"></a>
- <span class="sourceLineNo">079</span> }<a name="line.79"></a>
- <span class="sourceLineNo">080</span><a name="line.80"></a>
- <span class="sourceLineNo">081</span> /**<a name="line.81"></a>
- <span class="sourceLineNo">082</span> * Returns a dataset containing one series that holds a copy of the (y, z)<a name="line.82"></a>
- <span class="sourceLineNo">083</span> * data from one column (x-index) of the specified dataset.<a name="line.83"></a>
- <span class="sourceLineNo">084</span> *<a name="line.84"></a>
- <span class="sourceLineNo">085</span> * @param dataset the dataset (<code>null</code> not permitted).<a name="line.85"></a>
- <span class="sourceLineNo">086</span> * @param column the column (x) index.<a name="line.86"></a>
- <span class="sourceLineNo">087</span> * @param seriesName the series name (<code>null</code> not permitted).<a name="line.87"></a>
- <span class="sourceLineNo">088</span> *<a name="line.88"></a>
- <span class="sourceLineNo">089</span> * @return The dataset.<a name="line.89"></a>
- <span class="sourceLineNo">090</span> */<a name="line.90"></a>
- <span class="sourceLineNo">091</span> public static XYDataset extractColumnFromHeatMapDataset(<a name="line.91"></a>
- <span class="sourceLineNo">092</span> HeatMapDataset dataset, int column, Comparable seriesName) {<a name="line.92"></a>
- <span class="sourceLineNo">093</span> XYSeries series = new XYSeries(seriesName);<a name="line.93"></a>
- <span class="sourceLineNo">094</span> int rows = dataset.getYSampleCount();<a name="line.94"></a>
- <span class="sourceLineNo">095</span> for (int r = 0; r < rows; r++) {<a name="line.95"></a>
- <span class="sourceLineNo">096</span> series.add(dataset.getYValue(r), dataset.getZValue(column, r));<a name="line.96"></a>
- <span class="sourceLineNo">097</span> }<a name="line.97"></a>
- <span class="sourceLineNo">098</span> XYSeriesCollection result = new XYSeriesCollection(series);<a name="line.98"></a>
- <span class="sourceLineNo">099</span> return result;<a name="line.99"></a>
- <span class="sourceLineNo">100</span> }<a name="line.100"></a>
- <span class="sourceLineNo">101</span><a name="line.101"></a>
- <span class="sourceLineNo">102</span> /**<a name="line.102"></a>
- <span class="sourceLineNo">103</span> * Creates an image that displays the values from the specified dataset.<a name="line.103"></a>
- <span class="sourceLineNo">104</span> *<a name="line.104"></a>
- <span class="sourceLineNo">105</span> * @param dataset the dataset (<code>null</code> not permitted).<a name="line.105"></a>
- <span class="sourceLineNo">106</span> * @param paintScale the paint scale for the z-values (<code>null</code><a name="line.106"></a>
- <span class="sourceLineNo">107</span> * not permitted).<a name="line.107"></a>
- <span class="sourceLineNo">108</span> *<a name="line.108"></a>
- <span class="sourceLineNo">109</span> * @return A buffered image.<a name="line.109"></a>
- <span class="sourceLineNo">110</span> */<a name="line.110"></a>
- <span class="sourceLineNo">111</span> public static BufferedImage createHeatMapImage(HeatMapDataset dataset,<a name="line.111"></a>
- <span class="sourceLineNo">112</span> PaintScale paintScale) {<a name="line.112"></a>
- <span class="sourceLineNo">113</span><a name="line.113"></a>
- <span class="sourceLineNo">114</span> ParamChecks.nullNotPermitted(dataset, "dataset");<a name="line.114"></a>
- <span class="sourceLineNo">115</span> ParamChecks.nullNotPermitted(paintScale, "paintScale");<a name="line.115"></a>
- <span class="sourceLineNo">116</span> int xCount = dataset.getXSampleCount();<a name="line.116"></a>
- <span class="sourceLineNo">117</span> int yCount = dataset.getYSampleCount();<a name="line.117"></a>
- <span class="sourceLineNo">118</span> BufferedImage image = new BufferedImage(xCount, yCount,<a name="line.118"></a>
- <span class="sourceLineNo">119</span> BufferedImage.TYPE_INT_ARGB);<a name="line.119"></a>
- <span class="sourceLineNo">120</span> Graphics2D g2 = image.createGraphics();<a name="line.120"></a>
- <span class="sourceLineNo">121</span> for (int xIndex = 0; xIndex < xCount; xIndex++) {<a name="line.121"></a>
- <span class="sourceLineNo">122</span> for (int yIndex = 0; yIndex < yCount; yIndex++) {<a name="line.122"></a>
- <span class="sourceLineNo">123</span> double z = dataset.getZValue(xIndex, yIndex);<a name="line.123"></a>
- <span class="sourceLineNo">124</span> Paint p = paintScale.getPaint(z);<a name="line.124"></a>
- <span class="sourceLineNo">125</span> g2.setPaint(p);<a name="line.125"></a>
- <span class="sourceLineNo">126</span> g2.fillRect(xIndex, yCount - yIndex - 1, 1, 1);<a name="line.126"></a>
- <span class="sourceLineNo">127</span> }<a name="line.127"></a>
- <span class="sourceLineNo">128</span> }<a name="line.128"></a>
- <span class="sourceLineNo">129</span> return image;<a name="line.129"></a>
- <span class="sourceLineNo">130</span> }<a name="line.130"></a>
- <span class="sourceLineNo">131</span><a name="line.131"></a>
- <span class="sourceLineNo">132</span>}<a name="line.132"></a>
- </pre>
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