Steema Central

Posted: **Fri Nov 25, 2005 1:33 pm**

Hi,
I have a problem with TeeChart v7.05 (that was not with TeeChart v7.04 !) with the tool TDragPointTool.
I display 4 points with the series "TPointSeries" and I'm using the tool TDragPointTool to move these points, but in the v7.05 I can not anymore move some of them. I've the same problem with the function TPointSeries.Clicked(X, Y) : the function returns -1 when I click on some of them.

Any ideas of the pb? Perhaps a bug into the function TCustomSeries.Clicked(x,y:Integer) who has been modified into TeeChart v7.05.

Thanks.
Franck

Posted: **Fri Nov 25, 2005 1:46 pm**

Hi Franck,

I'm not able to reproduce the problem here. Are there any specific steps I should follow?

Clicked method works fine here using this code:

Code: Select all

procedure TForm1.Chart1MouseMove(Sender: TObject; Shift: TShiftState; X,
  Y: Integer);
begin
  if Series1.Clicked(X,Y)<>-1 then
    Chart1.Title.Text[0]:=IntToStr(Series1.Clicked(X,Y));
end;

Does it work at your end?

Posted: **Fri Nov 25, 2005 3:10 pm**

you do not understand my problem. I try to use the tool "TDragPointTool" to move points and it does not work correctly. Sometimes I could move points, sometimes not.
I also said that I have the same problem with the function TPointSeries.Clicked(X, Y) on these points. I clicked on points and sometimes the function return -1 !!
Here is a screenshot of the chart : http://cjoint.com/?lzpZx6rOd8

in blue = TFastLinesSeries, in red = TLineSeries, green points with black border = TPointSeries, black line = TDrawLineTool.

I think the problem of the tool "TDragPointTool" comes from the function TCustomSeries.Clicked() who is bugged.
Do you have a better version of this function that I could use to correct my problem ?
Thanks
Franck

Posted: **Fri Nov 25, 2005 3:27 pm**

Hi Franck,

I understand your problem. I've now tested using the series types you used in the screen-shot and works fine here, both TDragPointTool and Clicked method. Please notice that you need a drag point tool for each series assign a series to each tool.

Could you please send us an example we can run "as-is" or the .tee file for this screen-shot to reproduce the problem here? You can post your files at [url]news://www.steema.net/steema.public.attachments[/url] newsgroup.

Posted: **Thu Dec 01, 2005 3:47 pm**

Hi,
Just to tell you I found the problem : it was due to the call of the function TChartAxis.AdjustMaxMin() on the event TChart.OnMouseDown().
I don't know why but in my code this function generates strange behaviour of the mouse, as if the graph was switched of some pixel.
Regards
Franck

Posted: **Thu Dec 01, 2005 4:29 pm**

Hi Franck,

ok, I'm glad to know that works now.

Steema Central

Pb with TDragPointTool with TeeChart v7.05

Pb with TDragPointTool with TeeChart v7.05