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    <p>You may be looking for <a href="http://www.jfree.org/jfreechart/api/javadoc/org/jfree/chart/plot/ThermometerPlot.html#setSubrangePaint%28int,%20java.awt.Paint%29" rel="noreferrer"><code>setSubrangePaint()</code></a>, demonstrated below.</p> <p><img src="https://i.stack.imgur.com/YTBqP.png" alt="ThermometerDemo"></p> <pre><code>import java.awt.Color; import java.awt.EventQueue; import java.awt.GridLayout; import javax.swing.JFrame; import javax.swing.JPanel; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.plot.ThermometerPlot; import org.jfree.data.general.DefaultValueDataset; /** @see http://stackoverflow.com/questions/7597015 */ public class ThermometerDemo extends JPanel { private static final int W = 200; private static final int H = 2 * W; public ThermometerDemo(double value) { this.setLayout(new GridLayout()); DefaultValueDataset dataset = new DefaultValueDataset(value); ThermometerPlot plot = new ThermometerPlot(dataset); plot.setSubrangePaint(0, Color.green.darker()); plot.setSubrangePaint(1, Color.orange); plot.setSubrangePaint(2, Color.red.darker()); JFreeChart chart = new JFreeChart("Demo", JFreeChart.DEFAULT_TITLE_FONT, plot, true); this.add(new ChartPanel(chart, W, H, W, H, W, H, false, true, true, true, true, true)); } public static void main(final String[] args) { EventQueue.invokeLater(new Runnable() { @Override public void run() { JFrame f = new JFrame("Demo"); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); f.setLayout(new GridLayout(1, 0)); f.add(new ThermometerDemo(40)); f.add(new ThermometerDemo(60)); f.add(new ThermometerDemo(80)); f.pack(); f.setVisible(true); } }); } } </code></pre>
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