Jfreechart: Display weeks on x axis for value of days

血红的双手。 提交于 2019-12-02 06:41:11
Catalina Island

You should use a DateAxis for your time axis, like ChartFactory.createTimeSeriesChart() does. Then you can use setDateFormatOverride(), like they show here, and the SimpleDateFormat for "week in month."

JFreeChart chart = ChartFactory.createTimeSeriesChart(…);
DateAxis axis = (DateAxis) chart.getXYPlot().getDomainAxis();
axis.setDateFormatOverride(new SimpleDateFormat("W"));
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