In a dive, when you choose a very low GFlow (like 5 or 9) and a trimix
with quite some He (12/48 in the example) and descend fast, the ceiling
seems to do strange things in the first minutes of the dive (very very
deep for example or jumping around).
To understand what is going on we have to recall what gradient factors do
in detail: Plain Buehlmann gives you for each tissue a maximal inert gas
pressure that is a straight line when plotted against the ambient
pressure. So for each depth (=ambient pressure) there is a maximally
allowed over-pressure.
The idea of gradient factors is that one does not use all the possible
over-pressure that Buehlmann gives us but only a depth dependent fraction.
GFhigh is the fraction of the possible over-pressure at the surface while
GFlow is the fraction at the first deco stop. In between, the fraction is
linearly interpolated. As the Buehlmann over-pressure is increasing with
depth and typically also the allowed overpressure after applications of
gradient factors increases with depth or said differently: the tissue
saturation has to be lower if the diver wants to ascent.
The main problem is: What is the first stop (where to apply GFlow)? In a
planned dive, we could take the first deco stop, but in a real dive from a
dive computer download it is impossible to say what constitutes a stop and
what is only a slow ascent?
What I have used so far is not exactly the first stop but rather the first
theoretical stop: During all of the dive, I have calculated the ceiling
under the assumption that GFlow applies everywhere (and not just at a
single depth). The deepest of these ceilings I have used as the “first
stop depth”, the depth at which GFlow applies.
Even more, I only wanted to use the information that a diver has during
the dive, so I actually only considered the ceilings in the past (and not
in the future of a given sample).
But this brings with it the problem that early in the dive, in particular
during the descent the lowest ceiling so far is very shallow (as not much
gas has built up in the body so far).
This problem now interferes with a second one: If at the start of the dive
when the all compartments have 790mbar N2 the diver starts breathing a
He-heavy mix (like 12/48) and descents fast the He builds up in the
tissues before the N2 can diffuse out. So right at the start, we already
encounter high tissue loadings.
If now we have a large difference between GFhigh and GFlow but they apply
at very similar depth (the surface and a very shallow depth of the deepest
ceiling (which for a non-decompression dive would be theoretically at
negative depth) so far) it can happen that the linear interpolation as
opposite slope then in the typical case above: The allowed over-pressure
is degreasing with depth, shallower depth do not require lower gas loading
in the tissue (i.e. can be reached after further off-gasing) but but
tolerate higher loadings. In that situation the ceiling disappears (or is
rather a floor).
So far, I got rid of that problem, by stating that the minimum depth for
GFlow was 20m (after all, GFlow is about deep stops, so it should better
not be too shallow). Now the dive reported in ticket #549 takes values to
an extreme in such away that 20m (which is determined by
buehlmann_config.gf_low_position_min in deco.c) was not enough to prevent
this inversion problem (or in a milder form that the interpolation of
gradient factors is in fact an extrapolation with quite extreme values).
This patch that gets rid of the problem for the dive described above but
still it is possible to find (more extreme) parameter choices that lead to
non-realistic ceilings.
Let me close by pointing out that all this is only about the descent, as
it is about too shallow depth for GFlow. So no real deco (i.e. later part
of the dive) is inflicted. This is only about a theoretical ceiling
displayed possibly in the first minutes of a dive. So this is more an
aesthetically than a practical problem.
Fixes#549
Signed-off-by: Robert C. Helling <helling@atdotde.de>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This may be a bit crude and it doesn't actually FULLY reset the settings
(as for example the column widths will still be maintained), but it's a
good start, I think.
Fixes#552
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
That provides some UI elements that were recently introduced with function
of allowing the ascent rates of the planner to be configured by the user.
I tried to make it work both with senisble as well as with imperial units.
Signed-off-by: Robert C. Helling <helling@atdotde.de>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
dive = find_dive_including(gpsfix->when);
only finds dives which have a fix during the underwater time. If the positions have
been fixed before or after the dive, fails quietly. So let's test this situation and, in case,
pass the job to find_dive_n_near().
Signed-off-by: Salvador Cuñat <salvador.cunat@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Template HTML files must be overwritten when exporting if already exist.
Signed-off-by: Gehad elrobey <gehadelrobey@gmail.com>
Signed-off-by: Miika Turkia <miika.turkia@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Ask if you want the exporter to rearrange the dive numbers starting from
1 or use the existing numbers in subsurface. one may need to have the
dives exported in the same number to reference them easier.
Signed-off-by: Gehad elrobey <gehadelrobey@gmail.com>
Signed-off-by: Miika Turkia <miika.turkia@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Exporting small dive list only or choose to export the dive list with
all the dive details like the profile, Bookmarks, dive equipments and
statistics.
Signed-off-by: Gehad elrobey <gehadelrobey@gmail.com>
Signed-off-by: Miika Turkia <miika.turkia@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Most of my dives i plan i know it will just be full speed down a line in
the beginning and thus the planner can figure out that leg of the plan
by it self.
The config box added here isn't connected, because i saw that the other
planner boxes wasn't connected ether, so i left it in the same state as
they where.
Signed-off-by: Anton Lundin <glance@acc.umu.se>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Back in 6699e3ab ("Add print button to planner") unconditional printing
code was added. This puts that same code behind NO_PRINTING macro.
Signed-off-by: Anton Lundin <glance@acc.umu.se>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Lets just use pO₂ instead of PO2, ppO2, ppO₂, PO₂.
They all mean the same, but it's better to be
consistent
Signed-off-by: Henrik Brautaset Aronsen <subsurface@henrik.synth.no>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This small patch listens to EnabledChange to gray out the
date picker when the widget is in disabled mode, and to
paint the widget colored when it's on enabled state.
Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Also, clean a few calls, this should make the widget a tiny
bit faster. This patch also moves the grayImage function from
the star widget to the global scope, so I can use it on the
Calendar widget.
Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Added focus handling for the date picker, this way the user
can use the keyboard to change the date. ( still not implemented )
Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Added a popup widget to change the calendar date, just like
the old QDateTimeEdit.
Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
the new date widget still needs a bit of work, but the
design is working already.
Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This widget shows a date in a better way that it was done
in the old widget, much more elegantly.
Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
If a class inherits QObject, it doesn't needs to call
QObject::tr for the tr function.
Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
QSpinBox is nice to see how different sac rate would affect our dive
plan.
"Hey, What would happen if I would be stressed and my sac goes up by 50%?"
Signed-off-by: Anton Lundin <glance@acc.umu.se>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Its great to be able to see the planned "turn pressure", EADD at
different points and so on.
Signed-off-by: Anton Lundin <glance@acc.umu.se>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Back in 708f19830e ("Planner: New plannerSettingsWidget") the Globe
widget handling changed, and this updates the NO_MARBLE build option to
work after that.
Signed-off-by: Anton Lundin <glance@acc.umu.se>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This also explicitly states the encoding. It's just a file name and it's
always ASCII for us, but it's clear now.
Signed-off-by: Thiago Macieira <thiago@macieira.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
as QFile:copy doesn't overwrite files by default, we must check before
copying if file exist and remove it.
We must be able to overwrite files here, user is already notified and
choosed to replace them.
Signed-off-by: Gehad elrobey <gehadelrobey@gmail.com>
Signed-off-by: Miika Turkia <miika.turkia@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
export HTML into the file name choosen and export additional files into
a subdirectoy beside the html file, called htmlfilename_files
This is to follow the convension and doesn't create additional
directories to wrap the exports.
Signed-off-by: Gehad elrobey <gehadelrobey@gmail.com>
Signed-off-by: Miika Turkia <miika.turkia@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Just make it behave a little more sanely
- support Ctrl-W and Ctrl-Q
- remove the silly placeholder text for system info
- add language and version information
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Implements automatic OS and architecture detection. This code has
been taken from the Qt repositories for Qt 5.4 (LGPL) and slightly
modified into the SubsurfaceSysInfo class.
Signed-off-by: Joseph W. Joshua <joejoshw@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
The idea is that a week after the user starts using Subsurface we ask them
if they would like to submit a survey response.
If you are running a development build, don't wait seven days.
This patch doesn't do anything with the user's selections, doesn't submit
anything to our server, etc. It's just a placeholder to tune what we
should ask, etc.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
If you switch to edit mode by making a change to cylinders or weights,
then the data in the editedDive was changed and afterwards the current
dive was once again copied into the editedDive - even though we already
did that earlier when setting up the display.
Fixes#539
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
With commit 708f19830e ("Planner: New plannerSettingsWidget") we
suddenly started out showing the planner widget. Not useful. So let's
switch us back to the default screen :-)
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Robert's commit 708f19830e ("Planner: New plannerSettingsWidget")
moved several of the widgets from the maintab area to the new planner
settings widget.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
In planner mode, this replaces the globe with the dive plan and introduces
a new plannerSettingsWidget in the diveListPane. All new fields are still
disfunctional. This is WIP.
Signed-off-by: Robert C. Helling <helling@atdotde.de>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
The QDialog for html creates a folder, we need to choose a folder, not a
file. getSaveFileName was wrong. ;p
Fixes#533
Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This can't be the only dive computer, of course. Goes nicely with the
ability to reprder them.
Fixes#551
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This is needed if something has changed that requires a redraw, but the
plotDives() function can't tell (for example when a dive computer has been
deleted and there's now a different DC in the same spot, with the same
number - see next commit).
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
For some reasons Marble appears to sometimes not detect double clicks and
call the correct callback. With this commit we manually intercept the
double clocks and route them to the right function.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This finally gets me something that I like. The way the different boxes
get resized seems pleasant and intuitive. And it appears to do the right
thing on all platforms (I learned that having different levels of layout
nested creates no vertical offset on Linux/KDE, but a very ugly offset on
Mac, for example).
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This raises the maximum number of gas mixes listed to 20 and also changes
the layout / design of the stats tab to make it much more attractive.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
