I am making a chart using TChartShapes to create a Marginal Abatement Cost Curves (a series of rectangles showing costs and avoided carbon dioxide for a range of different measures). Its a pretty standard type of chart in my field. TChartShape series seemed like the best way to do this and they generally work very nicely.
However, I would like to label each block using Marks but TeeChart insists on showing two marks for each shape at two corners of each shape. See attached picture.
Can you offer some advice on how to fix this problem? Many thanks in advance.
I'm using Delphi 10.3.3 (32-bit) in Windows 10 using VCL version of TeeChart Pro v2019.27.
Below is code to demonstrate problem:
Code: Select all
procedure TForm19.MACCBtnClick(Sender: TObject); var Series: TChartShape; procedure _AddSer(x0, x1, y0, y1: double; name: string); begin Series := TChartShape.Create(Chart1); Series.Style := chasRectangle; Series.Title := name; Series.x0 := x0; Series.x1 := x1; Series.y0 := y0; Series.y1 := y1; Series.Color := clTeeColor; Series.ColorEachPoint := true; Series.Pen.Color := clGray; Series.Pen.Visible := false; Series.Marks.Style := smsLabelOrValue; Series.Marks.Visible := true; //Shows 2 marks per shape Chart1.AddSeries(Series); end; begin Chart1.Axes.Left.Minimum := -500; Chart1.Axes.Left.Maximum := 500; Chart1.Axes.Bottom.Minimum := 0; Chart1.Axes.Bottom.Maximum := 100000; Chart1.FreeAllSeries; _AddSer(0, 2000, 0, -400, 'Methane Leaks'); _AddSer(2001, 5000, 0, -200, 'Forestry'); _AddSer(5001, 8000, 0, -30, 'Efficient AC'); _AddSer(8001, 20000, 0, 40, 'Efficient Motors'); _AddSer(20001, 30000, 0, 50, 'Wind'); _AddSer(30001, 70000, 0, 350, 'Solar'); _AddSer(70001, 80000, 0, 370, 'Carnon Capture and Storage'); _AddSer(80001, 100000, 0, 450, 'Electric Vehicles'); end;