Display days in TimeSeriesChart

Question

How can I display the names of the days ("Sunday, Monday....") on the time axis, instead of just the date ?

Causey

Answer 1

You can use setDateFormatOverride(), as shown here.

Addendum:

isn't there a way to change only the top level?

ChartPanel has methods related to the zoom state. You should be able to set the date format as desired either by overriding the chartChanged() method or in response to user input, as suggested in this example.

Linnie

After using setDateFormatOverride() the axis is always labeled after the SimpleDateFormat i gave it, on every zoom level ; isn´t there a way to change only the top level ? In other words, top level "EEE, dd.MM.yyyy" and further down "HH:mm". – Causey

Answer 2

Yes:

DateAxis xAxis = (DateAxis) plot.getDomainAxis();
xAxis.setTickUnit(new DateTickUnit(
      DateTickUnit.DAY,
      1,
      new SimpleDateFormat("EEE", Locale.DE)));

Disharmonious

This is a good alternative, but Locale.getDefault() might be less locale specific. – Linnie

@trashgod: May may not, This strongly depends on our use case. Local.getDefault() works in a stand alone appliction, but not on a server. -- Anyway: you are correct in standalone application. – Disharmonious