Steema Central

Hi,
I have a problem with the zoom on windows 95/98 and Me : I a strange behaviour of the graph when I zoom one point of one trace.
This picture shows the original traces : http://img135.imageshack.us/my.php?image=zoomoff9pl.jpg

This one shows the zoomed point with the problem (a vertical line not desired) : http://img86.imageshack.us/my.php?image=zoomon7ej.jpg

I send you a project you could run "as it".
I wait for your reply on the forum.

Thanks
Franck

Hi Franck,

Thanks for the project but I'm afraid I won't receive it at the address you posted.

Thanks in advance.

ok, that's done !

Hi Franck,

I haven't received the e-mail. Can you please check it?

Thanks in advance.

I sent you the email successfully twice.
If you don't received it, you can recreate the project like this :
on a new application add a graph with two TLineSeries (lines and points visible) : the first red and the second blue.
Enable the zoom and put this code on the FormCreate() :

procedure TForm2.FormCreate(Sender: TObject);
var
k: integer;
x,y1,y2: double;
begin
Series1.Clear;
Series2.Clear;
Randomize;
for k := 0 to 9 do
begin
Series1.AddXY(k, 0,'',clred);
Series2.AddXY(k, 0,'',clLime);
end;
for k := 10 to 20 do
begin
x := k;
y1 := random(100);
Series1.AddXY(x, 100 + y1/100,'',clred);
y2 := random(100);
Series2.AddXY(x, 1 + y2/100,'',clLime);
end;
end;

Now you can reproduce the problem at run-time if you zoom several times on only one point.

Franck

narcis, you can reproduce the bug ?

Franck

Hi Franck,

No, I couldn't reproduce it, should I try to zoom any specific point?

BTW: I didn't receive your e-mail.

yes, zoom several times (4 or 5 times perhaps) on only one point. But remember, you must do it on windows 9x/Me to reproduce the bug.
On my side it works each time.

Franck

Hi Franck,

We can not reproduce it here as we don't have any win 98/me machine currently available. Have you tried if the problem happens in a Win 2000/XP/2003 machine?

You could also try to increase the graphic card colour settings in those machines.

This problem never happens on Win NT/2000/XP machines, but each time on Win 9x/Me machines (independently of the graphic card).
I really need a solution for this teechart bug... unfortunately several of my customers are still using Win 9x/Me.

Franck

narcis, you have no solution for my problem ?

Franck

Hi Franck,

I could reproduce the problem here in a Win 98 Virtual PC installation. We will investigage if there's anything to be done. I'll get back to you when I have furthre news.

great ! I wait for your reply.

narcis, do you have further news for this bug ?

no more news ??