[Kst] Fwd: [Google Code-in 2011] New comment on Kst: date/time support for the ASCII data source by kharvd

[Barth Netterfield]

Is this from LabView?  It could live in the ASCII data source, but but from
the user's point of view, c/should be detected as an NI file without a
config dialog.

This is actually a much easier problem than general Time fields.

Ben: can you open a bug (wishlist) for this, and link some example NI files
and any documentation you can find.  I will intend to get to it :-)


On Sun, Dec 4, 2011 at 6:53 AM, <nicolas.brisset at free.fr> wrote:

> Hi Ben,
>
> thanks for the feedback. I agree that reading NI files would be nice, but
> I would not like to complicate the ASCII source too much, and it seems to
> depart a bit too much from the usual stuff. To do it properly, we'd need to
> extract scalars (or even date/time info) from header lines...
>
> I'd rather do a specific datasource for NI. Can you provide more info on
> the possible extensions, headers, etc? That would possibly also be a nice
> Code-In task, by the way...
> Do others agree that we should rather do a specific source for that format?
>
> Nicolas
>
> ----- Mail original -----
> > De: "Ben Lewis" <egretengineering at gmail.com>
> > À: kst at kde.org
> > Envoyé: Dimanche 4 Décembre 2011 06:48:55
> > Objet: Re: [Kst] Fwd: [Google Code-in 2011] New comment on Kst:
> date/time support for the ASCII data source by kharvd
> >
> > Hi Nicolas,
> >
> > My requirements for ASCII date/time support are slightly different
> > from what you have described here.
> >
> > What I need may be outside the scope for this project but I thought I
> > would mention it anyway, just
> > in case this functionality can be included.
> >
> > Below are the first 15 lines of a typical ACSII file I use.
> >
> >
> --------------------------------------------------------------------------------------------------------------------------
> > channel names:
> > 02/12/2011 04:36:24 PM - Force (Bridge) - ch1    02/12/2011 04:36:24
> > PM - Force (Bridge) - ch2
> > start times:
> > 2/12/2011 16:36:24.609407    2/12/2011 16:36:24.609407
> > dt:
> > 0.000620
> > data:
> > -3.400914E+1    -1.141607E+1
> > 2.413543E+0    -7.194291E+0
> > -2.100850E+1    -5.889673E-2
> > -9.260725E-1    2.200645E+0
> > -8.395482E+0    -2.604362E+1
> > -1.209291E+1    -8.294330E+0
> > -1.063183E+1    -1.064306E+1
> > 8.108781E+0    -8.318977E-1
> >
> --------------------------------------------------------------------------------------------------------------------------
> >
> > The header gives the start date and time of the test with a delta t
> > (dt) value.  The first row of
> > data corresponds to the start date and time.  Each subsequent row is
> > offset, in time, by the value
> > of delta t
> >
> > Would it be possible to generate the time vector needed for kst from
> > this data?
> >
> > This file format is used by National Instruments.  If kst could
> > support this, I think it would be
> > useful for a lot of people.
> >
> > Cheers, Ben
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>



-- 
C. Barth Netterfield
University of Toronto
416-845-0946
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