JFreeChart - XYBarChart Show Separate Bars for Each Series

Question

I'm creating a XYBarChart using JFreeChart and adding multiple series to it. Currently for a given x-value and different Y-values from the series, all of them are getting stacked on top of each other. Would be possible to show each series as a different bar for a given x-value? Edit: I'm posting the relevant section of my code that is used to create the chart for your reference. Note that I cannot use CategoryDataset because this does not provide zooming capabilities on the Domain Axis. This is an essential requirement for my implementation. ``` XYSeriesCollection intervalXYDataSet = new XYSeriesCollection(); int countPlotPoints = populateBandData(intervalXYDataSet, optionList); //optionList is a HashMap> where key = seriesKey, and ArrayList builds up the value for each series if (countPlotPoints == 0) { print("No options selected. "); JOptionPane.showMessageDialog(this, "No Plot Points Were Selected!", "Warning", JOptionPane.WARNING_MESSAGE); retu…

Accepted Answer

EDIT Use `ClusteredXYBarRenderer` instead of `XYBarRenderer`. This draws adjacent bars (instead of StackedBars) and provides zooming capabilities.

There is no factory method in `ChartFactory` to create `ClusteredXYBarRenderer`.

Use the below method to create the Bar Chart.

```
private static JFreeChart createClusteredChart(String title, String categoryAxisLabel, String valueAxisLabel, IntervalXYDataset dataset) {

NumberAxis domainAxis = new NumberAxis(categoryAxisLabel);
  domainAxis.setAutoRangeIncludesZero(false);

ValueAxis valueAxis = new NumberAxis(valueAxisLabel);

XYBarRenderer renderer = new ClusteredXYBarRenderer();

XYPlot plot = new XYPlot(dataset, domainAxis, valueAxis, renderer);
  plot.setOrientation(PlotOrientation.VERTICAL);

JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT, plot, true);

return chart;
}
```

`XYBarRenderer` that you are using is correct. But I think you should use `CategoryDataSet` instead of `XYSeriesCollection`. Try using below dataset instead of `XYSeriesCollection`. This will produce adjacent bars instead of stacked bars.

```
private static CategoryDataset createDataset() {
  String series1 = "First";
  String series2 = "Second";
  String series3 = "Third";

String category1 = "Category 1";
  String category2 = "Category 2";
  String category3 = "Category 3";
  String category4 = "Category 4";
  String category5 = "Category 5";

DefaultCategoryDataset dataset = new DefaultCategoryDataset();

dataset.addValue(1.0D, series1, category1);
  dataset.addValue(4.0D, series1, category2);
  dataset.addValue(3.0D, series1, category3);
  dataset.addValue(5.0D, series1, category4);
  dataset.addValue(5.0D, series1, category5);

dataset.addValue(5.0D, series2, category1);
  dataset.addValue(7.0D, series2, category2);
  dataset.addValue(6.0D, series2, category3);
  dataset.addValue(8.0D, series2, category4);
  dataset.addValue(4.0D, series2, category5);

dataset.addValue(4.0D, series3, category1);
  dataset.addValue(3.0D, series3, category2);
  dataset.addValue(2.0D, series3, category3);
  dataset.addValue(3.0D, series3, category4);
  dataset.addValue(6.0D, series3, category5);

return dataset;
}
```

JFreeChart - XYBarChart Show Separate Bars for Each Series

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