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POJFreeChart Polar chart fill Zero to the point
 

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    <p>May be I could not phrase t the question right. Let me Explain I want to draw polar chart that starts the value from the zero and fill it to the desired point. When I plot graph it show something like this <img src="https://i.stack.imgur.com/8Y4rN.png" alt="This is what I have been able to achieve yet"></p> <p>But I am looking for something like this <img src="https://i.stack.imgur.com/7pqnN.png" alt="This is What I am looking for"></p> <p>Here is the sample Code</p> <pre><code>import java.awt.Color; import java.awt.Dimension; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.PolarChartPanel; import org.jfree.chart.plot.PolarPlot; import org.jfree.chart.renderer.DefaultPolarItemRenderer; import org.jfree.data.xy.XYDataset; import org.jfree.data.xy.XYSeries; import org.jfree.data.xy.XYSeriesCollection; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RefineryUtilities; public class PolarCharDemo extends ApplicationFrame { private static final long serialVersionUID = 1L; double [][] myData = {{12.1,7.9,3.29,1.01,0,145}, {12.6,8.4,3.22,1,0,145}, {13.1,8.1,3.29,0.97,0,145}, {10,7.5,3.22,0.93,0,145}, {11.4,8.2,3.1,0.93,0,145}, {11.7,7.3,2.99,0.9,0,145}, {10.3,8,2.97,0.89,0,145}, {8.8,7,3.05,0.9,0,145}, {9.8,6.7,3.13,0.93,0,145}, {11.1,7.1,3.05,0.91,0,145}, {8.8,6.2,3.12,0.95,0,145}, {9.6,7,2.82,0.44,2.3,5}, {10.2,6.8,2.82,0.47,3.2,5}, {9.4,6.8,2.76,0.41,2.9,5}, {10,7,2.61,0.44,3.3,45}, {12.8,8,2.95,0.49,2.2,50}, {9.9,7.1,4.08,1.01,0.6,45}, {7.1,4.4,2.23,0.4,1.5,5}, {5,4,2.1,0.37,2.3,5}, {7.2,4.1,2.17,0.37,1.5,5}, {7.1,4.3,2.09,0.36,2,5}, {5.1,4.1,2.17,0.38,2.1,5}, {4.2,3.9,2.16,0.41,1.9,5}, {4.9,3.9,2.08,0.35,2.5,5}, {4.3,3.5,2.09,0.34,3,5}}; /** * Creates a new instance of the demo. * * @param title the frame title. */ public PolarCharDemo(final String title) { super(title); final XYDataset dataset = createAvgDataset(); final JFreeChart chart = createChart(dataset); final ChartPanel chartPanel = new PolarChartPanel(chart); chartPanel.setPreferredSize(new Dimension(1000, 670)); chartPanel.setEnforceFileExtensions(false); setContentPane(chartPanel); } /** * Creates a sample chart. * @param dataset the dataset. * @return A sample chart. */ private JFreeChart createChart(final XYDataset dataset) { final JFreeChart chart = ChartFactory.createPolarChart("", dataset, true, true, false); final PolarPlot plot = (PolarPlot) chart.getPlot(); plot.setBackgroundPaint(Color.WHITE); plot.setAngleGridlinePaint(Color.BLACK); plot.setRadiusGridlinePaint(Color.LIGHT_GRAY); final DefaultPolarItemRenderer renderer = (DefaultPolarItemRenderer) plot.getRenderer(); renderer.setSeriesFilled(0, true); renderer.setSeriesPaint(0, Color.BLUE); renderer.setSeriesFilled(1, true); renderer.setSeriesPaint(1, Color.RED); renderer.setSeriesFilled(2, true); renderer.setSeriesPaint(2, Color.YELLOW); renderer.setSeriesFilled(3, true); renderer.setSeriesPaint(3, Color.GREEN); return chart; } /** * Creates an Average dataset. * @return An average dataset. */ private XYDataset createAvgDataset() { final XYSeriesCollection data = new XYSeriesCollection(); XYSeries series0 = new XYSeries("Series1"); XYSeries series1 = new XYSeries("Series2"); XYSeries series2 = new XYSeries("Series3"); for(int i=0;i&lt;myData.length;i++) { series0.add(myData[i][5], myData[i][0]); series1.add(myData[i][5], myData[i][1]); series2.add(myData[i][5], myData[i][2]); } data.addSeries(series0); data.addSeries(series1); data.addSeries(series2); return data; } /** * Main program that creates a thermometer and places it into * a JFrame. * * @param argv Command line arguements - none used. */ public static void main(final String[] argv) { final PolarCharDemo demo = new PolarCharDemo("Polar Chart"); demo.pack(); RefineryUtilities.centerFrameOnScreen(demo); demo.setVisible(true); } } </code></pre>
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