Bug 120

I have a problem with a 2D filled Contour plots.

Just placing a chart with a 2D contour series and using the code below:

procedure TForm1.FormCreate(Sender: TObject);
var i, j: Integer;
begin
 Chart1.View3D:=false;

 Series1.IrregularGrid:=true;
 Series1.Brush.Style:=bsSolid;

 for i:=0 to 9 do
 for j:=0 to 24 do
 Series1.AddXYZ(i, i*j-random(Round(0.5*i*j)),j);
end;

This gives contours which are not filled correctly (e.g. filled area outside contour lines and areas with white triangles). If I just use AddXYZ (i,i*j,j); the contour is drawn perfectly.
My guess is that internal IsoSurface series used for filling the contour levels doesn't take into account intermediate level points in a cell, it just uses cell intersections with levels.
Same happens with .NET version: TF02014290. [created:2008-05-27T13:59:34.000+01:00 reported by:narcis@steema.com reported in version:8.01 (TeeChart VCL)]