Is it possible to * add some kind of renderer to the XAxis? My values are

Directory SO Charts
1

Is it possible to

  • add some kind of renderer to the XAxis? My values are timestamps (milliseconds), so would be nice to render them as time string
  • to define where the legend must be shown (e.g. right of the graph)?
2

For positioning the legend, you can disable the default legend and add you own.

soChart.disableDefaultLegend();
Legend myLegend = new Legend();
Position p = myLegend.getPosition(true);
p.set...
p.set...
soChart.add(myLegend);

Regarding the rendering of the axis labels, I will get back to you.

3

Wow, quick and perfect reply again! Thanks, Syam.

4

I have incorporated the requested feature (Version 1.1.2). You can use something as follows:

xAxis.getLabel(true).setFormatter("{yyy}/{MM}/{dd}");

Please have a look at the documentation.
[Here]
(https://storedobject.com/api/com/storedobject/chart/Axis.Label.html#setFormatter(java.lang.String))

5

That’s quick!!! :-)

My xAxis contains milliseconds, which doesn’t seem to be handled correctly. Do I need to use other value type?

xAxis = new XAxis(DataType.NUMBER);
xAxis.getLabel(true).setFormatter("{HH}:{mm}:{ss}");
...		
xValues.add(System.currentTimeMillis());

18570427.png

6

You should use DataType.TIME or DataType.DATE (in the case of just date with out the time part) for that.

Also, there are helper classes available for creating serial data:
SerialTime, SerialDate, SerialData etc.

If your data is in millis, you can do something like LocalDateTime.ofEpochSecond(millis, 0, ZoneOffset.UTC) to convert that to DataType.TIME data.