possible O2 PP display bug

[Jan Schubert]

On 02.03.2013 13:49, dave remling wrote:
> HI,
>
> Great to see a new dive planner.  Just found out abut it via the post
> in Rebreather World.

Thx for reporting :-)

> I note some anomalous spikes in O2 partial pressure that may indicate
> a bug in the extrapolation procedure.
>
> I am running a Predator on a rEvo (computerized.0  Sampling is at 10
> second intervals.  I have looked at the XML dump of the computer log
> and the O2 levels are normal.
>
> The problem seem to ocure when hanging on deco.  I note that a slight
> decrease in depth, followed by slight decrease seems to trigger the
> indicated spike.
>
> for example over a 10 second interval:  starting depth 39.8 feet, O2
> 1.09 ending 41.5 feet, O2 1.3
>
> In the middle of this period Subsurface shows an O2 spike to 1.9. As
> there is no dive computer data available for this period I must assume
> it as an artifact of calculation.

Yeah, this is known featured we just discovered. It's already fixed and
will be included in a 3.0.2 release. The bug is, that we use values of
1,0xx as 1,xx bar. If you are able you may get the newest sources from
git, other wise we've to ask your to wait for 3.0.2 (which should not
take that long).

//Jan