TSeriesRegionTool and a series with null values

[jens.mertelmeyer]

Examine the following image: Just a TLineSeries (orange border) with some null values in between. I added a region tool. It fills the region from start to finish, as if there are no null values.

tseriesregiontool.png (14.62 KiB) Viewed 5626 times

Is there anything I could do about it?

I guess I'll probably have to look for "holes" myself and add a single region tool for each single line.

[Yeray]

Hello Jens,

I guess I'll probably have to look for "holes" myself and add a single region tool for each single line.

Yes, this would be an option.

I can also think on simply using a TAreaSeries with null points instead of a TLineSeries with a TSeriesRegionTool. Ie:

Code: Select all

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

  with Chart1.AddSeries(TAreaSeries) as TAreaSeries do
  begin
    Color:=RGB(128, 128, 255);
    Pen.Color:=RGB(255, 128,0);
    Pen.Width:=3;
    AreaLinesPen.Visible:=false;
    Transparency:=50;

    FillSampleValues(15);
    SetNull(4);
    SetNull(5);
    SetNull(6);
  end;
end;

area.png (20.23 KiB) Viewed 5618 times