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javajfreechart

Different color for different series in XYline chart JFreeChart


I have created XY line chart using JFreeChart, having two datasets, I want both the lines to be in different colors. I tried using following code-

  XYPlot plot = chart.getXYPlot();
  XYItemRenderer xyir = plot.getRenderer();
  xyir.setSeriesPaint(0, Color.GREEN);
  plot.setDataset(0, xyDataset1);

  xyir.setSeriesPaint(1, Color.blue);
  plot.setDataset(1, xyDataset2);

Also I have tried using following code, where I am using different renderer (don't know whether this is correct way to do it)-

  XYPlot plot1 = chart.getXYPlot();
  XYPlot plot2 = chart.getXYPlot();

  XYItemRenderer xyir1 = plot1.getRenderer();
  xyir1.setSeriesPaint(0, Color.GREEN);
  plot1.setDataset(0, xyDataset1);

  XYItemRenderer xyir2 = plot2.getRenderer();
  xyir2.setSeriesPaint(1, Color.blue);
  plot2.setDataset(1, xyDataset2);

In both the cases its printing both the lines in blue color. What's wrong?? Any suggestions??


Solution

  • Found the solution, it works for me, using two different Renderer, earlier i was not doing it properly--

     XYPlot plot = chart.getXYPlot();
      plot.setDataset(0, xyDataset1);
      plot.setDataset(1, xyDataset2);
      XYLineAndShapeRenderer renderer0 = new XYLineAndShapeRenderer(); 
      XYLineAndShapeRenderer renderer1 = new XYLineAndShapeRenderer(); 
      plot.setRenderer(0, renderer0); 
      plot.setRenderer(1, renderer1); 
      plot.getRendererForDataset(plot.getDataset(0)).setSeriesPaint(0, Color.red); 
      plot.getRendererForDataset(plot.getDataset(1)).setSeriesPaint(0, Color.blue);