Planner. Strange behavior while changing deco mixes.
Robert C. Helling
helling at lmu.de
Thu Feb 21 07:40:24 PST 2013
On Wed, 20 Feb 2013, Salvador Cuñat wrote:
> Hi.
>
> I was just testing the recent patches to the planner and realized that
> when changing deco mixes (EAN 50 - 21 m and O2 - 6m) the calculated
> plan diverges widely from the calculated ceiling.
> While at the 21 m stop the profile shows an EAD of 21m, when it must be
> 13,29 m (if I'm not wrong), and an strangely long duration, then jumps
> to a very brief 15m stop, without 18m.
> Something very similar on the 6m stop except for the EAD which is a
> correct 0m in this case, and don't loose the 3m stop.
>
> Attached is a printout with the simulated dive.
The problem that when reaching the gas change depth and computing the stop
time, no gas change event is created yet but time_at_last_depth tries to
determine the gas for the stop from events.
Here is a patch that adds o2 and he as parameters of that function instead
of the events logic. Dirk, I do not completely understand your gas logic
and do not understand why you did it your way previously. But this seems
to make sense for me. If you like:
Signed-off-by: Robert C. Helling <helling at atdotde.de>
Best
Robert
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Robert C. Helling Elite Master Course Theoretical and Mathematical Physics
Scientific Coordinator
Ludwig Maximilians Universitaet Muenchen, Dept. Physik
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