jfreechart: displaying values in pie chart as percentages

M

Marc Dugger

Using DefaultPieDataset, values are appearing as raw numbers by
default. How can I configure chart to display values as a percentage
(i.e. x%) of the total number of values?
 
M

Marc Dugger

Solution....

PiePlot plot = new PiePlot(<your pie dataset>);
StandardPieItemLabelGenerator labels = new
StandardPieItemLabelGenerator("{0} = {2}");
plot.setLabelGenerator(labels);
JFreeChart chart = new JFreeChart(plot);
chart.setTitle("<your chart title>");
ChartUtilities.saveChartAsJPEG(img, chart, 400, 300);
 

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