[Kst] kdeextragear-2/kst/kst

Marc-Antoine Miville-Deschenes mamd at cita.utoronto.ca
Wed Sep 22 16:34:01 CEST 2004


On 22-Sep-04, at 12:21 PM, Barth Netterfield wrote:

> Been thinking about this....
> we could make play a bit more clever:
>
>  -Iff you are in 'read to end' mode and paused, play goes to 'read to 
> end'
> mode and not paused (ie, same as hitting pause).
>  Otherwise, play goes to 'count from end mode'.
>
> Q: if you are in 'read to end' and not paused, what should 'play' do?
Nothing. That's why I'm confused about having two buttons.
>
> thoughts?
> cbn
>
> On September 22, 2004 12:53 pm, you wrote:
>> Dear Barth
>>
>> I know that if you do "read to end" at 100Hz you
>> will bring your machine down.
>> This is not the point here (or if it just switch automatically
>> to "count from end" mode when new data are comming in).
>> For Planck we are monitoring more than 2000 parameters
>> and some have a very low sample rate (1 Hz or less).
>> And in some cases you may want to be in "read to end" mode
>> even when you are live. And in this case the fact that
>> "play" switch automatically to "count from end" is an
>> expected feature. I don't see the problem here. Is it a
>> big thing not to switch mode when we don't ask for it ?
>> And by the way I think there should be only one button
>> that switch from "pause" to "play" when you hit it.
>> It is very misleading to have two buttons in the bar. I never
>> know which one to hit to go back to "play".
>>
>> Marc-Antoine
>>
>> On Wed, 22 Sep 2004, Barth Netterfield wrote:
>>> It changes to 'count from end'.
>>>
>>> The usage case it evolved from is:
>>> You experiment has been running and logging data for 10's of hours...
>>>
>>> You are looking at the last 30minutes.
>>>
>>> You pause/go back one screen/change frame ranges to look at some 
>>> recent
>>> historical stuff.  When you are done, you want to go back to live 
>>> mode.
>>>
>>> You have two choices:
>>> i) Read to end (which will bring your machine down if you leave it 
>>> that
>>> way for the next day, since the data keeps coming at 100Hz x 64 
>>> channels)
>>> ii) Count from end (which assumes that the length of your current 
>>> window
>>> is the length of the window your want, but you want to be looking at 
>>> the
>>> most recent data...)
>>>
>>> (ii) makes sense most often (at least for us), so that is what we do.
>>>
>>> cbn
>>>
>>> On September 22, 2004 12:07 pm, Marc-Antoine Miville-Deschenes wrote:
>>>> But what does the Play button do ? I don't understand
>>>> what is its use .
>>>>
>>>> On 22-Sep-04, at 1:40 PM, George Staikos wrote:
>>>>> On Wednesday 22 September 2004 02:38, Marc-Antoine 
>>>>> Miville-Deschenes
>>>>>
>>>>> wrote:
>>>>>> The bug is the following. When you are in "read to end" mode,
>>>>>> you hit pause and then play, you are now in "count from end"
>>>>>> mode. I expect to stay in "read to end" mode in that case.
>>>>>> In fact I expect the mode to stay what it was before I hit pause.
>>>>>>
>>>>>> Does it make sens ?
>>>>>
>>>>>   I believe what you are expecting is that the "Play" button does
>>>>> "unpause".
>>>>> In fact you have to hit the "Pause" button again to get that 
>>>>> behaviour.
>>>>>
>>>>> --
>>>>>
>>>>> George Staikos
>>>>> Staikos Computing Services Inc.      http://www.staikos.net/
>>>>> _______________________________________________
>>>>> Kst mailing list
>>>>> Kst at kde.org
>>>>> https://mail.kde.org/mailman/listinfo/kst
>>>>
>>>> Marc-Antoine Miville-Deschenes
>>>> Institut d'Astrophysique Spatiale
>>>> tel.: 01 69 85 86 78 ou 01 69 85 85 89
>>>>
>>>> _______________________________________________
>>>> Kst mailing list
>>>> Kst at kde.org
>>>> https://mail.kde.org/mailman/listinfo/kst
>>>
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Marc-Antoine Miville-Deschenes
Institut d'Astrophysique Spatiale
tel.: 01 69 85 86 78 ou 01 69 85 85 89




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