Memory leak in the Surface Series

[anauta2014]

I found a memory leak in the Surface series, will compile test1 program and after start will check memory by TaskManager

[Yeray]

Hello Vladimir,

I think with GDI it works better than with GDI+, could you please confirm it?
Delphi testing application:

Code: Select all

uses Chart, TeeGDIPlus, TeCanvas, TeeSurfa;

var Chart1: TChart;
    Series1: TSurfaceSeries;

procedure TForm1.FormCreate(Sender: TObject);
begin
  Chart1:=TChart.Create(Self);
  Chart1.Parent:=Self;
  Chart1.Align:=alClient;

  Chart1.View3D:=false;
  Chart1.Legend.Visible:=false;

  Series1:=Chart1.AddSeries(TSurfaceSeries) as TSurfaceSeries;
  Series1.FillSampleValues(128);

  RadioGroup1Click(Self);
end;

procedure TForm1.Timer1Timer(Sender: TObject);
var x, z: Integer;
begin
  for x:=0 to 127 do
    for z:=0 to 127 do
      Series1.Value[x,z]:=random(512);
end;

procedure TForm1.RadioGroup1Click(Sender: TObject);
begin
  case RadioGroup1.ItemIndex of
    0: if Chart1.Canvas is TTeeCanvas3D then
          Chart1.Canvas:=TGDIPlusCanvas.Create;
    1: if Chart1.Canvas is TGDIPlusCanvas then
          Chart1.Canvas:=TTeeCanvas3D.Create;
  end;
end;

After confirming it, if you want you can add it to the bugzilla tracking system:
http://bugs.teechart.net/

[anauta2014]

Hi Yeray
I've just checked with the GDI rendering, the bug exists also with the same rate of the memory leak.
By the way, this bug exists only in the last version of the TeeChart, the previous works fine, for this reason I am using now the previous version of the TeeChart (from November 2013).

The TColorBand bug (my other report) also is absent in the previous version.

[Narcís]

Hi Vladimir,

Thanks for your feedback. I could reproduce the issue here and added it to the bug list (ID611). Please feel free to sign up at Steema Software's bugzilla platform to be able to get automatic issue update notifications.

The TColorBand bug (my other report) also is absent in the previous version.

It has just been fixed for the next maintenance release, see David Berneda's comment.

[Narcís]

Hi Vladimir,

This is not a memory leak, see David's comment.