[Kst] [Bug 288472] New: Date/Time support for ASCII files generated by National Instruments LabVIEW SignalExpress

[egretengineering+kde at gmail.com]

https://bugs.kde.org/show_bug.cgi?id=288472

           Summary: Date/Time support for ASCII files generated by
                    National Instruments LabVIEW SignalExpress
           Product: kst
           Version: 2.0.4
          Platform: MS Windows
        OS/Version: MS Windows
            Status: UNCONFIRMED
          Severity: wishlist
          Priority: NOR
         Component: datasources
        AssignedTo: kst at kde.org
        ReportedBy: egretengineering+kde at gmail.com


Version:           2.0.4
OS:                MS Windows

NI LabVIEW SignalExpress is a software package for acquiring, analysing,
presenting, and logging data without programming (see
http://zone.ni.com/devzone/cda/tut/p/id/5837).

LabVIEW Signal Express stores log files in TDMS format which kst currently does
not support.  It can however export to ASCII which kst can read, however kst
currently plots the data against sample number.  This request is for the kst
ACSII data source to support the reading of this file type so that the x-axis
is displayed in terms of time.  Ideally the user would have the option to
select between absolute time and time relative to the start of the test.

The exported SignalExpress ASCII file contains header information followed by
tab separated data.  The header contains the log start time and a sampling
period "dt".  From this information it is possible to calculate the time value
corresponding to each sample.

I have attached three sample files.  Additional sample files can be generated
from within SignalExpress, which is free to download from here
https://lumen.ni.com/nicif/us/evalsignalexpress/content.xhtml.

As far as I am aware this text format is specific to SiganlExpress and is not
common to other NI products such as LabVIEW. There are even variations in the
formatting within SignalExpress depending on how the file is exported.  See
this link
http://forums.ni.com/t5/SignalExpress/Single-Express-Export-to-Ascii-Not-logging-time/td-p/804903.
Note the option to export the time column, as discussed in this thread, is not
available after the 30-day trail period expires.

>From my point of view the ultimate solution would be for kst to support the
TDMS format. This is used across all of NIs software and would enable plotting
of live data.  However, I'm under the impression that this is a much bigger
task than supporting the exported ASCII format so this would be a good
intermediate solution. 

Please let me know if you need any more info.

Reproducible: Didn't try



Expected Results:  
NA

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