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Stacked chart with percentage composition inside a bar and general over a bar in JFreeChart

I am trying to create a Stacked Bar Chart. My requirement is that I need the percentage composition inside the bar and the total score on the top bar. Please suggest solutions.

My requirements: Example: http://www.jfree.org/jfreechart/api/javadoc/images/StackedBarRenderer3DSample.png

I want a percentage composition inside the bar and an overall composition at the top of the panel.

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It's not clear what you are doing right now, but using StackedBarRenderer

c will setRenderAsPercentages(true)

display the percentages. To get the total, add StackedBarRenderer

, loop through the dataset for each column, and override drawItem()

to draw the result. An example can be found in the JFreeChart Demo as part StackedBarChartDemo3

.

Alternatively, consider a custom CategoryToolTipGenerator

one added via setBaseToolTipGenerator()

.



Appendix: you linked to an example using StackedBarRenderer3D

which also has a method setRenderAsPercentages()

. It can be extended in a similar way.

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I faced the same problem. For some reason, the latest version of JFreeChart does not display percentage composition inside the panel. This is how I got it working:

    StackedBarRenderer br = new StackedBarRenderer(true); //enable perc. display
    br.setBarPainter(new StandardBarPainter());
    br.setBaseItemLabelGenerator(new StandardCategoryItemLabelGenerator());
    br.setBaseItemLabelsVisible(true);
    chart.getCategoryPlot().setRenderer(br);


Hope it helps

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