Internal floating point (FP) calculations should be performed using double
unless there is a very good reason. This avoids headaches with conversions.
Indeed, the vast majority of FP calculations were already done using double.
This patch adapts most remaining calculations. Not converted where things
that were based on binary representations and variables which weren't used
anyway.
An analysis of all instances follows:
core/plannernotes.c, l.404:
This was a comparison between two floats. On the left side, first an integer
was cast to float then multiplied with and integer and divided by a constant
double. The right hand side was an integer cast to a float. Simply divide by
1000.0 first to convert to double and continue with calculations. On the right
hand side, remove the cast, because the integer will be implicitely cast to
double for comparison. This conversion actually emits less instructions,
because no conversion to double and back is performed.
core/planner.c, l.613:
Same analysis as previous case.
subsurface-desktop-main.cpp, l.155:
A local variable representing the version OpenGL version. Turn this into
integer logic. Not only does this avoid dreaded FP rounding issues, it also
works correctly for minor version > 10 (not that such a thing is to be
expected anytime soon).
abstractpreferenceswidget.[h/cpp]:
A widget where the position is described as a float. Turn into double.
desktop-widgets/divelogexportdialog.cpp, l.313:
total_weight is described as float. Use double arithmetics instead. This
instance fixes a truncation warning emitted by gcc.
This reenables the computation of plan variations but now in a separate
thread. Once finieshed, a signal is sent to update the notes.
Signed-off-by: Robert C. Helling <helling@atdotde.de>
before we run out of memory. Diving deep with air and small GFhigh
can cause those (try GF 30/70 at 75m with 25+min bottom time)
Signed-off-by: Robert C. Helling <helling@atdotde.de>
For UI responsiveness, we need to be able to run the planner in the background. This needs the
planner state to be localized (and we need to pass a pointer around).
In order to not let too many lines overrun (and to save typing in the future)
I have renamed instances of struct deco_state to ds. Yes this should have gone
to a separate commit but I accidentally commit --amend'ed it.
Computing of planner variations is temporarily disabled.
Unlock the planner when returning early
So we don't deadlock in add dive and recreational mode (which
use the planner without actually planning).
Signed-off-by: Robert C. Helling <helling@atdotde.de>
Commit d15779a calculates final stop based on stoplevels[2], but if final stop
is 6m/20ft, we should use stoplevels[3]. This fixes it.
Signed-off-by: Rick Walsh <rickmwalsh@gmail.com>
This makes the calculations in profile.c a little simpler, especially now we
adopt consistent final ascent rate to determine deco_time since d15779a27
Signed-off-by: Rick Walsh <rickmwalsh@gmail.com>
If we consider the actual time to ascend from the final stop when calculating
deco_time, then slowing the final ascent can lead to the final stop being
extended, which is completely nonsensical. For consistency with the original
VPMB implementation, we can't ignore the final ascent time completely, but if
we assume it is always the same (take default ascent rate of 9m/min) then
slower the final ascent won't lead to a longer final stop.
Signed-off-by: Rick Walsh <rickmwalsh@gmail.com>
Remove unused variables o2time and breaktime or convert into boolean.
Never consider minimum gas switch time when switching to o2.
Reflect this behavior also in the UI.
Signed-off-by: Stefan Fuchs <sfuchs@gmx.de>
This corrects the issue where the displayed ceiling in the profile was
"broken" by the planner, especially for shorter and shallower dives.
Also fixes issue outside of planner where the deepest VPM-B ceiling was shown
too early, messing up the deco_time calculation.
VPM-B plans respond to change in O2% in gas as expected (in my testing)
Fixes: #630
Signed-off-by: Rick Walsh <rickmwalsh@gmail.com>
When changing the date/time of a dive in the planner the dive may end
up in a totaly new position in respect to date/time of other dives in
dive list table. It can be moved to the past or the future before or after
other existing dives. It also could overlap with an existing dive.
This change enables identification of a new "virtual" dive list position
and based on this starts looking for previous dives.
Then it (as before the change) does init the deco calculation with any
applicable previous dive and surface interval.
If some of these applicable dives overlap it returns a neg. surface time
which is then used in the planner notes to prohibit display of results.
Signed-off-by: Stefan Fuchs <sfuchs@gmx.de>
Tidy up the code which creates the first sample for time = 0 to make
clear that the info for this does NOT come from the first planner point (dp).
No functional change.
Signed-off-by: Stefan Fuchs <sfuchs@gmx.de>
In the planner when a dive is created from the diveplan every first
sample with a new gas shouldn't have a pressure value added.
Otherwise the interpolation code for the pressure graph in the profile
will draw the pressure graph incorrectly.
Signed-off-by: Stefan Fuchs <sfuchs@gmx.de>
Up to now the cylinder for gas breaks was hardcoded to first cylinder.
With this change the best_first_ascend_cylinder is used if its
O2 is <=32%.
Signed-off-by: Stefan Fuchs <sfuchs@gmx.de>
When calculating the dive plan in the planner don't accidently use
another gas with same gasmix instead of the gas stored as
"best_first_ascend_gas".
This is important if you have e.g. a bottom stage and back gas with
same gas mix because then you always want to start your ascent with
the gas you used in last entered dive planner point.
Signed-off-by: Stefan Fuchs <sfuchs@gmx.de>
... and reset deco information in profile ceiling computation.
The planner test then needs to know about the struct holding the deco
state.
Signed-off-by: Robert C. Helling <helling@atdotde.de>
This option should have never been there. This is not how
gradient factors are supposed to work. It would only trick
users to use the wrong value..
Signed-off-by: Robert C. Helling <helling@atdotde.de>
Print out partial derivatives of stop times with respect to
variation of depth and duratin of last manual segment.
Signed-off-by: Robert C. Helling <helling@atdotde.de>
This allows to go to much smaller granularity without severe
performance penalty. It should also increase performance for
long decompression times.
Currently this leads to missing cached tissue factors, the caching
has to be adopted to this.
Also, for the time being this breaks the bottom gas breaks feature.
Signed-off-by: Robert C. Helling <helling@atdotde.de>
...rather than use a global variable and a macro.
This should be a no-op in preparation to allow planning
several versions of a dive.
Signed-off-by: Robert C. Helling <helling@atdotde.de>
We currently carry two pressures around for all the samples and plot
info, but the second pressure is reserved for CCR dives as the O2
cylinder pressure.
That's kind of annoying when we *could* use it for regular sidemount
dives as the secondary pressure.
So start prepping for that instead: don't make it "pressure" and
"o2pressure", make it just be an array of two pressure values.
NOTE! This is purely mindless prepwork. It literally just does a
search-and-replace, keeping the exact same semantics, so "pressure[1]"
is still just O2 pressure.
But at some future date, we can now start using it for a second sensor
value for sidemount instead.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This is another attept at the problem if identifying a potentially
user supplied text in the dive notes upon replannig a dive.
It gets rid of the user visable position markers (*!* and ***) and
cirumvents problems with mark-up by first converting the old notes
to plan text (assuming that user only enters plain text in the notes
field as we do in other places as well). Then the automatically added
part is identified by locating the disclaimer in the text (if the user
edited/delted the disclaimer or changed langue in between it is her
problem to manually delete the old plan).
Everything from the disclaimer on is deleted and replaced by the new plan.
If the disclaimer is not found, the new plan is appended to the old notes.
This way we make sure no information gets automatically deleted.
Signed-off-by: Robert C. Helling <helling@atdotde.de>
2 strings in the planner output showed based on "Bühlmann ZHL-16B with GFLow = "
gradient factors without % after the factor. While this is fine for an
abbreviated form like GF 40/80, this looks strange for a verbose sentence like
the 2 corrected ones.
Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
New strategy to identify old planner output in notes when
replanning a dive: Text anchors ("*!*" and "***") added for planner output
For backwards compatibility: If there is no anchor but an old table
delete everything.
Signed-off-by: Stefan Fuchs <sfuchs@gmx.de>
This prints this information in the header near
"Subsurface" where I guess at least the version information
belongs. Plus it saves a line.
Signed-off-by: Robert C. Helling <helling@atdotde.de>
Upon replanning a dive, we want to delete the old
dive plan in the notes and replace it with the actual.
This fixes a problem when we failed to detect the old plan due
to the deco model name appearing in the disclaimer that was used
as a marker for the notes.
This patch also adds translation markers for the deco model name strings..
Fixes#285
Signed-off-by: Robert C. Helling <helling@atdotde.de>
Add automatic tests in TestPlan for minimum gas:
- Copy minimum gas result (pressure) to diveplan.
- Add cylinder size and working pressure for bottom gas to every dive in TestPlan
Hint: Unrealistic cylinder sizes (100l, 200l) have to be used for the very long and deep dives in TestPlan
- Add minimum gas check for every dive
- Add two additional test dives in TestPlan which produce sane minimum gas results with 24l tank
Hint: Deco check for these new dives is commented out at the moment
Signed-off-by: Stefan Fuchs <sfuchs@gmx.de>
For the "crazy" long and deep dives in "TestPlan" an overflow happened here.
Rearranged the calculation to have more margin.
Signed-off-by: Stefan Fuchs <sfuchs@gmx.de>
Use lrint() to fix both:
1)
core\planner.c:902:23: warning: conversion to 'int' from 'doub
le' may alter its value [-Wfloat-conversion]
2)
core\planner.c:907:21: warning: conversion to 'int32_t' from '
double' may alter its value [-Wfloat-conversion]
Signed-off-by: Lubomir I. Ivanov <neolit123@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
