[EXTERNAL] Using dates on the X-axis

Wed Feb 19 13:55:36 GMT 2020

BTW, a year or so ago I spent time trying to build KST - in order to try to contribute.  It was very difficult.  I think I had some luck with some old version of Linux but then couldn't build a Windows binary.

I love KST and use it extensively and want to keep it alive.  I have minimal spare time and can't spend a couple weeks getting a smooth build going.

Does anyone have a clear and complete set of instructions for building KST (at a minimum for Windows)?

Thanks,
Steve

From: Bill Gee <bgee at campercaver.net>
Sent: Wednesday, February 19, 2020 8:04 AM
To: Maher, Stephen F. (GSFC-665.0)[SCIENCE SYSTEMS AND APPLICATIONS INC] <stephen.f.maher at nasa.gov>
Cc: kst at kde.org
Subject: Re: [EXTERNAL] Using dates on the X-axis

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<mailto:kst-bounces at kde.org>> On Behalf Of Bill Gee

> Sent: Saturday, February 15, 2020 10:40 AM

> To: kst at kde.org<mailto: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!

>

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> So far I have not found a way to do this. Can anyone give me any clues?

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> KST version = 2.0.8 (from Fedora repository)

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> Fedora 31, 64-bit

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> Qt = 4.8.7

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> KDE = whatever version installs to Fedora 31

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> A short sample of the input data file:

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>

> ===============

>

> 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

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> Interpret Field = Date

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> Formatted String = MM/dd/yy hh:mm:ss

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> Offset = Relative, 0.00 seconds

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> 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.

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> Thanks!

> --

>

> Bill Gee

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