Reparsing data

[Shawn Willden]

I found a manual for DataTrak on Scubapro's web site, and I think I
understand what I was misremembering.

DataTrak showed exertion throughout the dive, plus total air consumption
(from which it calculated SAC). That is consistent with the data available
from Aladin; the depth sample data contains extertion info and the dive log
contains the total air consumption.

I actually don't care all that much about the exertion data... it was cool
to see, but I imagine subsurface has no similar concept and trying to hack
it in would be non-trivial. I really would like to see the air consumption,
and subsurface clearly has that.

Do you know offhand if libdivecomputer is not returning that data for or if
subsurface is ignoring it?

If you don't, I'll figure it out.


On Wed, Mar 18, 2015 at 8:30 AM, Shawn Willden <shawn at willden.org> wrote:

> On Wed, Mar 18, 2015 at 4:38 AM, Jef Driesen <jef at libdivecomputer.org>
> wrote:
>
>> On 2015-03-18 09:07, Shawn Willden wrote:
>>
>>> Is there a convenient way (short of figuring out the API and writing a
>>> program... which I can do but I'd rather not) to parse a dump file?
>>>
>>
>> Yes, that's possible with the simulator. Instructions and binaries can be
>> found here [...]
>
>
> Thanks, that's very helpful.
>
>
>> The aladin/memomouse parser doesn't report tank pressure, because that
>> info is not stored in the sample data.
>
>
> It is. At least, the DataTrak software I used to use on Windows showed
> detailed air consumption curves, so the data is retrievable somehow. Unless
> there's some way for the host to instruct the dive computer to provide more
> data, it must be buried in the download.
>
> I'm really hoping to avoid having to find some way to get a copy of
> Windows to run DataTrak.
>
>
>> Also if anyone knows of any documentation for the Uwatec data format, that
>>> might be helpful, but I suspect I can get a really good idea of what's
>>> going on by just walking through the code as it dissects the data.
>>>
>>
>> Links to external protocol documentation can be found here:
>>
>> http://libdivecomputer.org/links.html
>
>
> Hmm. Looking at the Aladin and Memomouse pages there certainly doesn't
> seem to be any place for tank pressure. But DataTrak *does* display it.
>
> The data format does include a "level of exertion" value that it says is
> derived from the computer based on air consumption. I suppose Datatrak
> could be using that somehow to estimate consumption... but as I recall it
> shows actual tank pressures, too.
>
> I think I'm going to have to find a copy of Windows and validate my
> recollections. If I can find a copy of DataTrak... The "buy a new computer"
> option is looking more and more attractive ...
>
> --
> Shawn
>



-- 
Shawn
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