>>you want only a vertical and an horizontal line to be drawn where you clicked into the chart? That's what I wanted, and your example was exactly what I needed. Thank you very much! By the way: If I deactivate the Cursor Tool in the MouseUp event, and then activate it in the MouseDown event, the li...

Hello, Regarding Cursor Tool set up like this: with Chart1.Tools.Add(TCursorTool) as TCursorTool do begin FollowMouse := True; ScopeStyle := scsEmpty; Pen.Visible := False; Series := Chart1[0]; //A series must be assigned to show cross hair with cursor tool. end; As you can see, the cross hair is no...

I get an Access violation when clicking the Drag Point tool in the TeeChart 2010 demo.
Just for your information.

Maybe this thread is relevant for you:
http://www.teechart.net/support/viewtop ... =3&t=11883

I got it!!! I just used the Cursor Tool that I'm using anyway! with Chart1.Tools.Add(TCursorTool) as TCursorTool do begin FollowMouse := True; ScopeStyle := scsEmpty; Pen.Visible := False; Series := Chart1[0]; //A series must be assigned to show cross hair with cursor tool. Style := cssVertical; end...

Hi Yeray, I don't think that's the function I need, and it sounds like overkill to use a separate Tool in my case. I'm actually still pretty sure that I'm just missing one line of code. As discussed above: You wrote: >>You can also obtain the pixel for a determinate series' value, knowing it's index...

Hi Yeray,

Thanks for that, but I don't want/need to interpolate the value between the points, just get the value closest to the cursor.
I'm pretty sure it is just a very simple line of code that I need to retrieve that index as described above, but which code?

TChart 2010, Labels and Repainting:
sounds like a problem I have (had) too...

http://www.teechart.net/support/viewtop ... =3&t=11873

Hi Yeray, I think we misunderstand each other. As seen on the enclosed screen shot (from a measurement program I'm about to "copy") I want to get the YValue that is on the same horizontal position as the cursor, but not necessarily on the same vertical position. You wrote: >>You can also obtain the ...

That seems to work, thanks!

Hi Yeray,

OK, but please note that Repaint and Refresh don't solve the problem completely, see my previous post.

Do you happen to be able to help me out with my newest post in this forum regarding retrieving YValues?

Hello all, I give up, after way too long time searching for a solution on my quite simple task! With this code tmpX, tmpY: Double; Chart1[0].GetCursorValues(tmpX, tmpY); I get the actual values under the mouse cursor, even though no series values are present under the cursor. But how do I get the YV...

By adding the line
Chart1.Repaint;
or
Chart1.Refresh;

at the end of the MouseMove event the cross hair gets redrawn, but then it draws on top of the label.

This is not the case when using the line
Chart1.Title.Text.Text := FloatToStr(Round(tmpX));

I use the latest version. Downloaded yesterday

If you delete the line:
Chart1.Title.Text.Text:=FloatToStr(Round(tmpX));

you should also see the problem.

Hi, I didn't know that function, thanks for that! Anyway, the problem seems to be here too. Put a label to a new Chart, and add this code: procedure TForm1.Chart1MouseMove(Sender: TObject; Shift: TShiftState; X, Y: Integer); var tmpX, tmpY: Double; begin Chart1[0].GetCursorValues(tmpX, tmpY); Label1...