[Kst] Plot Live data problems on MS-Windows kst2.0-b3

Peter Milne peter.milne at d-tacq.com
Sat Sep 25 23:18:16 CEST 2010

Hi Barth

OK, will do, but it won't be for a week .. I'll be on the road and not
carrying ms-w.


On Sat, Sep 25, 2010 at 8:47 PM, Barth Netterfield
<netterfield at astro.utoronto.ca> wrote:
> Peter M,
> This windows update bug seems very weird, and I worry that it could be some
> strange file-sytem 'feature'.
> In kst/tests/dirfile_maker is the source for a little app which makes a fake
> dirfile that can be used to test real-time bugs.
> Could you try to get this going under windows, and verify that you see the
> same bug with this?
> thanks!
> cbn
> On Sat, Sep 25, 2010 at 2:14 PM, Peter Milne <peter.milne at d-tacq.com> wrote:
>> Hi Peter
>> Just started to use kst2.0-b3, but this problem shows up [same on b1,
>> sorry to be so slow to report]:
>> So, for plotting live data from a network file share, we have the new
>> 'Time Interval' feature.
>> On my system, it "works", but it's far from ideal.
>> What appears to happen:
>> - the data plots.
>> - the plot updates.
>> At lease, the left hand side of the time scale [old data] advances.
>> But the right hand side [new data] either doesn't update or updates
>> _very_ slowly. With the result that, the timebase window on screen is
>> continuously shrinking, and after about 5 updates, the timescale
>> window on screen is very short and the plot is blank.
>> A second issue, this is the "front-to-back" line effect raised here:
>> https://bugs.kde.org/show_bug.cgi?id=249555
>> At the time Barth pointed out that the data generator _must_ update
>> the "reference field" last, and after changing the generator code to
>> the appropriate sequence, the problem was resolved [at least on KST on
>> Linux].
>> So currently the situation is - plotting live data from a SAMBA share
>> under KST on Linux, works perfectly, both updates, timescale and
>> appearance of the plot, but under MS-Windows, it's less than ideal.
>> It's not the end of the world, because it's possible to force the
>> screen to update by pressing the Refresh button..
>> Best regards
>> Peter
>> ps: b3 : the new "Manager", "Wizard" icons are cool, but the
>> left-right sequence across the screen doesn't really reflect my
>> workflow -  I'd prefer something like the old order of where "Wizard",
>> generally the first thing you do, was near the left.
>> --
>> Peter Milne www.d-tacq.com
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Peter Milne www.d-tacq.com

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