[SOLVED] Box-and-whisker plot hint

[apeoperaio]

I am trying to use the hint when dealing with Box and whiskers plot.
I am using the chart tool TDataPointHintTool (marks as smsValue). The hint is shown when I move the mouse on the box and whiskers plot, but the value is always the Min value of the serie.

Attached you can find a project to replicate this behaviour.

Is it a bug?

[wp]

I committed a fix to this so that the correct y (and/or x) value of a multi-valued chartsource is picked by default. But even without this, you can provide a handler for the OnHint event of the TDataPointHintTools to compose the hint text on your own:

Code: Pascal  [Select][+][-]

1. procedure TForm1.ChartToolset1DataPointHintTool1Hint(ATool: TDataPointHintTool;
2.   const APoint: TPoint; var AHint: String);
3. var
4.   ser: TBoxAndWhiskerSeries;
5. begin
6.   if ATool.Series is TBoxAndWhiskerSeries then
7.   begin
8.     ser := TBoxAndWhiskerSeries(ATool.Series);
9.     AHint := ser.FormattedMark(ATool.PointIndex, ser.Marks.Format, ATool.YIndex);
10.   end;
11. end;

Here you can also use the Marks.Format property to define the number of decimal places displayed, e.g.: BoxAndWhiskerSeries1.Marks.Format := '%0:.2f'.

[apeoperaio]

Thank you.
Really helpful and superfast!