From: "Alfred ten Hoeve" <Alfred.tenHoeve@gironet.nl>
Subject: Re: X-Y Graphs using Teechart
Date: 03 May 1999 00:00:00 GMT
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Robert Till heeft geschreven in bericht <372BC258.11A13002@ibm.net>...
>I'm wondering how to plot an X-Y graph using the Teechart that came with
>delphi 4.
>
>The demo says to add lines on FormCreate like this:
>
>Series1.Add( 25 , 'Rome', clTeeColor)
>Series1.Add( 50 , 'New York , clTeeColor)
>etc...
>
>This puts the cities on the X axis and the numbers on the Y axis.
>
>I just want to graph numbers on the Y axis vs. numbers on the X axis.
>
>How do I add numbers to the series to do this?
>
>Thanks,
>
>Bob
>

Robert (or Bob)

here is an example:

procedure TForm1.Button2Click(Sender: TObject);
var
  x, y : Double;
begin
  x := -2;
  repeat
    y := x * x;
    Chart1.Series[0].AddXY(x, y, '', clRed);
    Chart1.Series[1].AddXY(x, x, '', clBlue);
    x := x + 0.01;
  until x > 2;
end;

this prints the line y = x and the parabola y = x*x.

Hope it helps you,
Alfred.


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