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POChanging the shapes of points in scatter plot
 

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    <p>I have thousands of points to Plot on a <code>JFreeChart</code> scatter plot. The problem right now is that my program is plotting points with "squares", but I need some help on how to change the <code>Shape</code> of points from "squares" to "dots/circles". Any help would be appreciated.</p> <p>//<strong>*<em>I am using ShapeUtilities,but its not changing the shape of point to "DaigonalCross" when I am Using for XYItemRenderer/XYDotRenderer--Any corrections please if anythng wrong in the code ..</em>*</strong>///</p> <pre><code>import java.awt.Color; import java.awt.Dimension; import java.awt.Shape; import java.util.*; import javax.swing.JPanel; import org.jfree.chart.*; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.plot.XYPlot; import org.jfree.chart.renderer.xy.XYItemRenderer; import org.jfree.chart.renderer.xy.XYDotRenderer; 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; import org.jfree.util.ShapeUtilities; public class SPlotfinal extends ApplicationFrame { public SPlotfinal(String s) { super(s); JPanel jpanel = createDemoPanel(); jpanel.setPreferredSize(new Dimension(500, 270)); setContentPane(jpanel); } public static JPanel createDemoPanel() { JFreeChart jfreechart = ChartFactory.createScatterPlot("Scatter Plot Demo", "X", "Y", samplexydataset2(), PlotOrientation.VERTICAL, true, true, false); Shape cross = ShapeUtilities.createDiagonalCross(3, 1); XYPlot xyPlot = (XYPlot) jfreechart.getPlot(); XYItemRenderer renderer = xyPlot.getRenderer(); renderer.setBaseShape(cross); renderer.setBasePaint(Color.red); //changing the Renderer to XYDotRenderer //xyPlot.setRenderer(new XYDotRenderer()); XYDotRenderer xydotrenderer = new XYDotRenderer(); xyPlot.setRenderer(xydotrenderer); xydotrenderer.setSeriesShape(0, cross); xyPlot.setDomainCrosshairVisible(true); xyPlot.setRangeCrosshairVisible(true); return new ChartPanel(jfreechart); } private static XYDataset samplexydataset2() { int cols = 20; int rows = 20; double[][] values = new double[cols][rows]; XYSeriesCollection xySeriesCollection = new XYSeriesCollection(); XYSeries series = new XYSeries("Random"); Random rand = new Random(); for (int i = 0; i &lt; values.length; i++) { for (int j = 0; j &lt; values[i].length; j++) { double x = Math.round(rand.nextDouble() * 500); double y = Math.round(rand.nextDouble() * 500); series.add(x, y); } } xySeriesCollection.addSeries(series); return xySeriesCollection; } public static void main(String args[]) { SPlotfinal scatterplotdemo4 = new SPlotfinal("Scatter Plot Demo 4"); scatterplotdemo4.pack(); RefineryUtilities.centerFrameOnScreen(scatterplotdemo4); scatterplotdemo4.setVisible(true); } } </code></pre>
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