LightningChart Support Forums

Posted: **Tue Jan 19, 2016 8:45 am**

Hi,

in my application i use a monotonic time to record the values.
The monotonic time variable has the datatype "ulong".

: Series_Points.png (24.08 KiB) Viewed 5862 times

In the screenshot you can see that the text is too long for the X axis and is therefore not displayed.

: chart_current_with_ulong_value_not_visible.png (20.93 KiB) Viewed 5862 times

I would like to show a relativ time on x-axis regardless of the x-axis value.
E.g.: values on the X-axis: "100 ... 0" or in the other case in the other direction "0 ... 100"

: chart_relative_time_from_right_to_left.png (21.9 KiB) Viewed 5862 times

thank you very much
Igor

Posted: **Tue Jan 19, 2016 11:27 am**

Hi Igor,

I think the easiest approach is to use two X axes.

xAxis1:
- attach your series to this axis.
- set Visible = false for the xAxis1

xAxis2:
- Set Reversed = True.
- axis2.SetRange(0, xAxis1.Maximum - xAxis1.Minimum);

You zoom your view, remember to update the axis2 range.

When you are monitoring your data, the xAxis2 will be static, and the data flows as xAxis1 scrolls.

Something like this

Posted: **Wed Jan 20, 2016 2:49 pm**

thank you. Works fine for me

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