Testing of planner against other software

Davide DB dbdavide at gmail.com
Tue Jun 24 03:18:18 PDT 2014


Here we are.

Attached there is zip file with profile (dive plan) screenshots taken from:

- GUE Decoplanner 3.14 Buhlmann algo ZHL168
- Subsurface windows daily build 4.1.379.0

All profiles generated with GF factors 20/85 same bottom and deco gas.
I used three depth: 45m - 70m and 90m
I used GUE standard gas to obtain a PO2 on the bottom of about 1.2bar and
END <= 30m hence:
45m = 21/35
70m = 15/55
90m = 12/65

Then I changed bottom time and for the shallower depth i run two profiles
with/without a second deco gas (oxygen).
I forced SS with last stop at 6 meters for easy comparison (and I would
like it is the default behavior)
Schreenshot file names are something like:

seq.number-Software-bottom time at depth-GFlow-GFHigh-decogas.PNG

DP = decoplanner
SS = Subsurface

07-SS-30 at 90m-20-85-35.25+ean50+100.PNG means: Subsurface 30'@ 70m with deco
gas: 30/25 - EAN50 - Oxygen.

I will write a feedback email apart for current dive planner UI
suggestions. Right now I'm just comparing numbers.

Profiles seems to be nearly the same except SS tends to give longer times
for heavier profiles with a dangerous long deep stop.

Usually I see 6 minutes more on SS just because it adds (correctly) a nice
1 meter per minute ascent rate from 6 meter to surface. I guess that this
is extra the calculated deco time.

The long deep stop is clearly visible on 70m and 90m profiles:

05-SS-30 at 70m-20-85-ean50+100 Subsurface suggest a 6 minutes stop at 42
meters while DP just a normal 1 minute deep stop.

06-SS-40 at 70m-20-85-ean50+100 Subsurface suggest a 5 minutes stop at 45
meters while DP just a normal 1 minute deep stop.

07-SS-30 at 90m-20-85-35.25+ean50+100 Subsurface suggest a 5 minutes stop at
60 meters while DP just a normal 1 minute deep stop.

I can add more profiles if you need them.

Bye















2014-06-24 11:37 GMT+02:00 Dirk Hohndel <dirk at hohndel.org>:

> On Tue, Jun 24, 2014 at 11:32:31AM +0200, Davide DB wrote:
> > I run some profile comparison againsta GUE Decoplanner 3.14 Buhlmann.
> >
> > Unfortunately Deco planner doesn't have a smart way to export profiles
> so I
> > had to screen capture them.
> > Could I post screenshots here? Total size of png images is 500KB
>
> Yes you can. I think the mailing list has a 800kB limit. If it gets stuck
> in moderation I'll look again tonight (in a few hours) to make sure it
> makes it.
>
> /D
>



-- 
Davide
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