 05 Sep 2012, Stefan Ritt, Info, New pipe compression implemented in mlogger
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A new pipe compression has been implemented in mlogger thanks to Fedor Ignatov from BINP
Novosibirsk. The way it works that the logger write into a pipe instead directly into a file. The pipe can
then be connected to any compression program without the need to copile against any additional C
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07 Aug 2006, Stefan Ritt, Info, New multi-threaded midas slow control system
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[b]Multi-threaded slow control system[/b]
The Midas slow control system has been modified to support multi-threaded slow control front-ends. Each device gets it's own thread in the front-end, which |
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16 Mar 2022, Stefan Ritt, Info, New midas sequencer version
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A new version of the midas sequencer has been developed and now available in the
develop/seq_eval branch. Many thanks to Lewis Van Winkle and his TinyExpr library
(https://codeplea.com/tinyexpr), which has now been integrated into the sequencer
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 22 Mar 2022, Stefan Ritt, Info, New midas sequencer version
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After several days of testing in various experiments, the new sequencer has
been merged into the develop branch. One more feature was added. The path to
the ODB can now contain variables which are substituted with their values.
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15 Apr 2022, Stefan Ritt, Info, New midas sequencer version 
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I prepared some slides about the new features of the sequencer and post it here so
people can have a quick look at get some inspiration.
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24 Jun 2020, Stefan Ritt, Info, New image history system available
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I'm happy to report that the Corona Lockdown in Europe also had some positive side
effects: Finally I found time to implement an image history system in midas,
something I wanted to do since many years, but never found time for that.
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31 Jul 2024, Lukas Gerritzen, Bug Report, New history plots: Zooming in on logarithmic y axis does not work as expected
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Using the mouse to click and drag on a logarithmic y axis triggers a zooming behaviour as if the user zoomed in on a linear axis.
How to reproduce:
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31 Jul 2024, Stefan Ritt, Bug Report, New history plots: Zooming in on logarithmic y axis does not work as expected
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I fixed that and committed the change to megon02, just reload your browser. I also set ymin and ymax of the Vacuum plot to meaningful
values (not to zero!).
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14 Aug 2019, Stefan Ritt, Info, New history plot facility
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During my visit at TRIUMF we rewrote the history plotting functionality of midas. Instead of
static GIF images, we have now interactive JavaScript panels where we can scroll, zoom,
inspect values and much more (example is attached). We are now in a state where this is still
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06 Sep 2019, Andreas Suter, Info, New history plot facility
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I like the new history system very much, but I stumbled over a couple of issues.
I used the version "Thu Aug 29 08:24:29 2019 +0200 -
midas-2019-06-b-244-gdd6585bb on branch develop":
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06 Sep 2019, Stefan Ritt, Info, New history plot facility
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> 1) it would be nice to have an option to format the label output (see attachment 1)
That's clearly a bug, I will fix it.
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06 Sep 2019, Andreas Suter, Info, New history plot facility
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> > 2) the background of a history plot is very handy if you only show one measure.
> > If you have multiple ones (see attachment 2), this is not the case anymore. It
> > would be nice if the background could be enabled/disabled.
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07 Sep 2019, Stefan Ritt, Info, New history plot facility
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> This I found out, yet the attachment here shows another case where it would be useful to be
> able to disable the background, namely if you have positive and negative measures in one
> plot. Somehow it suggests that CH1 and CH2 show very different values, whereas it is only a |
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07 Sep 2019, Stefan Ritt, Info, New history plot facility
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> This I found out, yet the attachment here shows another case where it would be useful to be
> able to disable the background, namely if you have positive and negative measures in one
> plot. Somehow it suggests that CH1 and CH2 show very different values, whereas it is only a
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08 Sep 2019, Stefan Ritt, Info, New history plot facility
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> 1) it would be nice to have an option to format the label output (see attachment 1)
I fixed that in the current version.
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10 Sep 2019, Andreas Suter, Info, New history plot facility
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Our typical use case is that a lot of people are connected to the experiment
having some history tabs open most of the time. Hence, I setup a test system and
connect to it from all kind of systems/browsers. What I see currently quite
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16 Sep 2019, Konstantin Olchanski, Info, New history plot facility
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> I see currently quite often is the error hs_read_arraybuffer (see the
attachement).
> Are there ways to get a log which would document where the problems
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16 Sep 2019, Konstantin Olchanski, Info, New history plot facility
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> During my visit at TRIUMF we rewrote the history plotting functionality of midas.
This is a most amazing achievement. We wanted to do this "for years" and I think we have
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16 Sep 2019, Stefan Ritt, Info, New history plot facility
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> Also the new system is still incomplete, i.e. there is no trivial way to save a history plot into a file:
That has been implemented in meantime. Just click on the download arrow and you can save the current window in CSV or PNG format.
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17 Sep 2019, Andreas Suter, Info, New history plot facility
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> On the mhttpd side, please capture the stack trace from the crash: enable
> core dumps (ODB "/experiment/enable core dumps" set to "y", after the crash,
> run "ls -l core.*; gdb mhttpd core.9999") or run mhttpd inside gdb or attach
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