Open of Form with TreeMap - causes CPU Usage to climb..

[TimeAcct]

Hi,

I have an interesting problem. I have a TreeMap graph setup on a form. When I try to open that form - it causes the CPU usage to climb to 13% on my Quadcore CPU - and Delphi basically hangs.
I am not convinced it is a TeeChart issue - as I have some other funny things happening with Delphi - but thought I would check to see if you have seen this happen elsewhere??

Bradley

[Yeray]

Hi Bradley,

Can you please tell us what IDE and TeeChart version are you using?
Could you also please tell us the exact steps we should follow to reproduce the problem here from a new simple application?
Thanks in advance.

[TimeAcct]

Hi

I have not been able to reproduce it at this time - except in our large project. That is partly the reason for the question

As to which version - I am using Delphi XE Enterprise - and the first TeeChart Version to work with Dephi XE.

Bradley

[Yeray]

Hi Bradley,

I'm trying to reproduce the problem in a new simple application (RAD Studio XE + TeeChart Pro v2010.02) with only a chart and a button in the form. Here is the code I'm running:

Code: Select all

uses TeeWorldSeries;

procedure TForm1.Button1Click(Sender: TObject);
begin
  with Chart1.AddSeries(TWorldSeries) as TWorldSeries do
  begin
    Map:=wmWorld;
    FillSampleValues();
  end;
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
  Chart1.View3D:=false;
  Chart1.Legend.Visible:=false;
end;

Looking the Task Manager when clicking the button, I see the application taking the 8% of the CPU for about a second and then the application continues using 0% CPU if I don't interact with the chart.
I've tested it in an AMD 3800+ with 3.5GB RAM.

Maybe your application is doing something, repainting the chart continuously?
It will be helpful if you can arrange a simple example project we can run as-is to reproduce the problem here.

Thanks in advance.