TAChart logaritmic scale labels

[Marq01]

Hi,

I am trying to make a logarithmic x-axis with TChart.
I want to have the label format like 1.0E-9.
With the Marks-Format function I only get 1.0E-009 (format %1.0e).
Anyone a tip how to resolve this?
Thanks
Arnoud

[wp]

Use the OnMarkToText event of the axis which gives you more control of the mark formatting process:

Code: Pascal  [Select][+][-]

1. procedure TForm1.Chart1AxisList0MarkToText(var AText: String; AMark: Double);
2. begin
3.   AText := FormatFloat('0.0E-0', AMark);       // AMark = 10.0 --> 1.0E1
4.   // AText := FormatFloat('0.0E+0'. AMark);    //              --> 1.0E+1
5.   // AText := FormatFloat('0.0E+00', AMark);   //              --> 1.0E+01
6.   // AText := FormatFloat('0.00E+00', AMakr);  //              --> 1.00E+01
7. end;

[Marq01]

Perfect,
Thanks for pointing out this method.