Zoom doesn't work if series contains very small values

[Erison Liang]

Hi,

I've the following code to initial line series:

Code: Select all

            line1.Clear();
            line1.Add(4.48E-13, "AK945");
            line1.Add(4.336E-13, "AK95P");
            line1.Add(3.508E-13, "AK98Q");
            line1.Add(4.724E-13, "AK9GG");
            line1.Add(8.232E-13, "AK974");
            line1.Add(4.476E-13, "AK9J0");
            line1.Add(4.512E-13, "AK95T");
            line1.Add(3.152E-13, "AK977");
            line1.Add(2.976E-13, "AK95Y");
            line1.Add(2.98E-13, "AK99W");
            line1.Add(3.496E-13, "AK9FF");

The zoom function does not work correctly. And then I trace the source of TChart. I found there is a limitation to check the min range when DoZoom. I think this limitation is inefficient for engineering or scientific data analysis. In many cases, the measurement data is extra large or small. I suggest to perform this limitation via programmer but not use a const value there.

The is very serious issue for my product. Customer is complain about it still.

- Erison

[Narcís]

Hi Erison,

I've been able to reproduce the issue here and added it (TF02013577) to the defect list to be investigated for next releases.

[Erison Liang]

Hi,

In currently, I try to change the value in Axis.cs as below and it works. You can reference it.

Code: Select all

    private const double minAxisRange = 1E-38;//0.0000000001;

- Erison

[Narcís]

Hi Erison,

Thanks for the information. I have updated it on the bug list.

[Narcís]

Hi Erison,

Just wanted to let you know this issue has been fixed for next maintenance release due to be out on week 51 (from 15th to 21st December).

[Erison Liang]

Hi,

It's great. Thanks.

- Erison