On 26/04/2018 10:53, Chirana Gheorghita Eugeniu Theodor wrote:
Yes I figured that out , but would pose more sense if there would be
no subsurface setting in this matter. It makes no sense to setup the
dive log to display 30/75 when the dive computer reports it was using
30/70 for that dive. Even more what if during a dive I change the GF
settings on the computer (which is possible on th eshearwater)??? what
will subsurface than display? it should display a icon in the dive
profile just like a cylinder change. Right?
On Thu, Apr 26, 2018 at 11:37 AM, Willem Ferguson
<[email protected]
<mailto:[email protected]>> wrote:
On 26/04/2018 10:18, Chirana Gheorghita Eugeniu Theodor wrote:
Please ignore this. It was from the general settings of the
application...
On Thu, Apr 26, 2018 at 11:14 AM, Chirana Gheorghita Eugeniu
Theodor <[email protected] <mailto:[email protected]>> wrote:
I have this dive opened on the windows version of libdcNG
continuous build 4.7.8-81-gb930c39eade0. I see the dive
computer setup as GF30/70 but in the dive profile screen it
shows GF30/75. Issue of display glitch? Please see attached
screenshot.
What is the "official" release of the NG that is beeing
maintained? Maibe I am using the wrong one?
I suspect here the GF on the left (30/70) is the gradient factor
that the dive computer used. This is a function of the dive
computer settings. The value on the right (30/75) is the GF that
Subsurface has been set to in the Subsurface Preferences (i.e. the
displayed profile GF).
Kind regards,
willem
I am not sure that this is generally doable.
Firstly, only a handful dc's record GF. Most do not. How should one deal
with the dc's that do not record GF? How should one provide for the
multiple ways in which different dive computers determine conservatism?
Most dc's use conservatism levels, not GF.
Secondly, how is GF recorded in the Subsurface dive log? This is a
function of the way libdivecomputer extracts data from the dive
computer. I am not convinced that libdivecomputer has the ability to
capture on-the-fly changes in GF during a dive, so your suggestion is
probably not possible anyway. My Uwatec automatically adjusts the
conservatism if the diver oversteps the deco requirements, but this is
not captured by libdivecomputer. And I do not care too much about that.
If this is a critical factor for you, then consider a dc like Shearwater
that provides its own set of dive ceilings for each dive, reflecting the
GF settings of the dc, including on-the-fly changes in GF.
Libdivecomputer captures that perfectly.
Thirdly, the displayed GF in the Subsurface dive profile is a broad and
general yard stick to evaluate the deco during the dive. Is it really
crucial to modify the ceiling in a detailed way to reflect GF changes
during the dive? All the a diver wants to do is to get a reasonable
*overall* impression of how well the deco went in terms of tissue
compartment gas pressures.
Kind regards,
willem
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