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Bug 2734 - Area series with Stairs and null points draws a strange vertical line
Summary: Area series with Stairs and null points draws a strange vertical line
Status: RESOLVED FIXED
Alias: None
Product: VCL TeeChart
Classification: Unclassified
Component: Series (show other bugs)
Version: 39.231109
Hardware: PC Windows
: --- enhancement
Target Milestone: ---
Assignee: yeray alonso
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2024-07-26 03:20 EDT by yeray alonso
Modified: 2024-07-26 07:16 EDT (History)
1 user (show)

See Also:
Chart Series: ---
Delphi / C++ Builder RAD IDE Version:

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Description yeray alonso 2024-07-26 03:20:58 EDT 
In the following example, a vertical line at the x=4 is drawn down to the zero value.

uses Chart, Series;

var Chart1: TChart;

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

  with Chart1 do
  begin
    Parent:=Self;
    Align:=alClient;
    Color:=clWhite;
    Gradient.Visible:=False;
    Walls.Back.Color:=clWhite;
    Walls.Back.Gradient.Visible:=False;
    Legend.Hide;
    View3D:=False;

    Axes.Left.StartPosition:=20;
    Axes.Left.EndPosition:=80;
    Axes.Left.SetMinMax(60, 100);
    Axes.Left.Increment:=10;
    Axes.Left.Axis.Color:=OperaPalette[0];

    Axes.Left.Grid.Hide;
    Axes.Bottom.Grid.Hide;

    with TAreaSeries(AddSeries(TAreaSeries)) do
    begin
      AddY(70);
      AddY(80);
      AddY(90);

      AddNull;

      AddY(70);
      AddY(80);
      AddY(90);

      Pen.Width:=2;
      Stairs:=True;
      AreaLinesPen.Hide;
      Pen.Color:=Color;
    end;
  end;
end;