[EXTERNAL] Using dates on the X-axis

[Bill Gee]

Hi Stephen -

I am afraid you are correct.  It appears that KST is not under active development.  If this becomes a major problem I will have to find another graphing tool.  

LabPlot is one possibility.  I have looked at LibreOffice Calc, but it has been awhile and I don't remember exactly why I found it unsuitable.  It might be worth another look.

-- 
Bill Gee



On Tuesday, February 18, 2020 6:54:24 AM CST Maher, Stephen F. (GSFC-665.0)[SCIENCE SYSTEMS AND APPLICATIONS INC] wrote:
> I asked a similar question awhile ago .. I don't think it's possible ...
> 
> Steve
> 
> 
> From: Kst <kst-bounces at kde.org> On Behalf Of Bill Gee
> Sent: Saturday, February 15, 2020 10:40 AM
> To: kst at kde.org
> Subject: [EXTERNAL] Using dates on the X-axis
> 
> 
> I generate graphs every now and then which show a year of data. The data is temperature and water depth. It all works well, except that the x-axis is marked in days since zero. I would MUCH rather have the x-axis show actual dates. It would be enough to show the first of each month. There are 35000 data points in each graph, so showing every date would not work!
> 
> 
> 
> So far I have not found a way to do this. Can anyone give me any clues?
> 
> 
> 
> KST version = 2.0.8 (from Fedora repository)
> 
> Fedora 31, 64-bit
> 
> Qt = 4.8.7
> 
> KDE = whatever version installs to Fedora 31
> 
> 
> 
> A short sample of the input data file:
> 
> 
> 
> ===============
> 
> Date,Water Pressure,Barometric Pressure,Water Depth,Temperature
> 01/01/19 00:00:00,14.7982,14.3716,0.869,53.623
> 01/01/19 00:30:00,14.8026,14.379,0.863,53.623
> 01/01/19 01:00:00,14.8028,14.3821,0.857,53.798
> 01/01/19 01:30:00,14.8092,14.3938,0.846,53.798
> 01/01/19 02:00:00,14.8223,14.4057,0.849,53.798
> 01/01/19 02:30:00,14.8288,14.4162,0.841,53.798
> 01/01/19 03:00:00,14.8246,14.4162,0.832,53.973
> 01/01/19 03:30:00,14.8289,14.4191,0.835,53.973
> 01/01/19 04:00:00,14.8246,14.4176,0.829,53.973
> 01/01/19 04:30:00,14.8289,14.425,0.823,53.973
> 01/01/19 05:00:00,14.8336,14.431,0.820,54.147
> 01/01/19 05:30:00,14.8379,14.4368,0.817,54.147
> 01/01/19 06:00:00,14.8465,14.4472,0.813,54.147
> 01/01/19 06:30:00,14.853,14.4532,0.815,54.147
> 01/01/19 07:00:00,14.8596,14.4606,0.813,54.147
> 01/01/19 07:30:00,14.8661,14.4739,0.799,54.147
> 01/01/19 08:00:00,14.8748,14.4798,0.805,54.147
> 01/01/19 08:30:00,14.8771,14.4901,0.788,54.322
> 01/01/19 09:00:00,14.8793,14.4946,0.784,54.322
> 01/01/19 09:30:00,14.888,14.5035,0.783,54.322
> ================
> 
> In the data wizard, I specify the first line of the file as field names. In "Date/Time Interpretation" I set
> 
> 
> 
> Interpret Field = Date
> 
> Formatted String = MM/dd/yy hh:mm:ss
> 
> Offset = Relative, 0.00 seconds
> 
> 
> 
> In the window for editing a graph, under X-Axis I have tried every combination I can think of for date interpretation and display format. None of them produce what I want.
> 
> 
> 
> Thanks!
> --
> 
> Bill Gee
> 
> 
> 
> 
> 

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