Steema Central

Posted: **Tue Nov 08, 2005 12:32 pm**

Hi,
I have created a graph with two series. I am interested is displaying the the sum of the Y values(series1 Y value + series2 Yvalue) in Tooltip.
I would like to display the sum for both Mouse over and On Click events.

Is it possible?. If yes then please let me know how it can be done.

Thanks,
Mahendra

Posted: **Tue Nov 08, 2005 1:32 pm**

Hi Roger

As long as their x-axis is shared it should be no problem.

OnClickSeries:

sum = tChart1.Series(0).YValues.Value(ValueIndex) + tChart1.Series(1).YValues.Value(ValueIndex)

OnMouseEnterSeries:
Dim XVal as Double

XVal = tChart1.Axis.Bottom.CalcPosPoint(tChart1.Series(0).MouseValues.X)

sum = tChart1.Series(0).YValues.Value(XVal) + tChart1.Series(1).YValues.Value(XVal)

Try that.
Ross

Posted: **Tue Nov 08, 2005 3:44 pm**

Hi Roger,

one way to do this could be to use the following code (using a TMarksTipTool) :

Code: Select all

procedure TForm1.ChartTool1GetText(Sender: TMarksTipTool;
  var Text: String);
begin
Text := floattostr(Series1.YValue[strtoint(text)] + Series2.YValue[strtoint(text)]);
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
ChartTool1.Style := smsXValue;
end;

Steema Central

How to add the Y values and display it in Tooltip

How to add the Y values and display it in Tooltip

Should be possible