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2011-10-29Fix up end conditions for divesGravatar Linus Torvalds
We used to have the dive plot have two "filler" entries at the beginning and the end, and indeed that is how they are allocated. However, we fix up "pi->nr" later to be "lastindex+1", where "lastindex" is the index of the time we surface. So when we loop over the plot entries, we actually need to loop all the way to the end: use "i < pi->nr" instead of "i < pi->nr-2". We still do have the two extra filler entries at the beginning, though. So depending on the loop, we might want to start at entry 2. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-10-29Plot fake profile for non-sample divesGravatar Linus Torvalds
Right now it just plots something ridiculous, the code is really just meant to be an example. We migth be able to plot a traditional staircase plot and make it look somewhat saner by taking mean depth into account (if it exists). Right now it just plots a (skewed) rectangular dive profile using the max depth and total time. Which is obviously insane. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-10-29Fix use of uninitialized variable if there are no samplesGravatar Linus Torvalds
When creating the plot_info, the 'entry' variable pointing to the last plot_info data was not initialized (because there was no data to fill in), and was then incorrectly used to fill in the last tank pressure. We also used to look at 'dive->sample[0].cylinderindex' even if no sample[0] necessarily existed. Reported-by: Miika Turkia <miika.turkia@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-10-25Add menu item and dialog to select which events to displayGravatar Dirk Hohndel
Right now they are displayed in one hbox which doesn't work if you have many events - but the code itself works and correctly toggles the events on and off. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2011-10-25Don't plot an event if an event is disabled in ev_namelistGravatar Dirk Hohndel
We don't have a way to actually configure this in the app, yet, but toggling the bits in the debugger shows that this works, so commit this code now. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2011-10-25Remember the event names as we encounter themGravatar Dirk Hohndel
First step to being able to filter the events that we display in the profile. We could (in theory) walk all the dives in the divelist when we need this data, but it seems much more convenient to have them in an array in one place. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2011-10-24Merge branch 'ui' of git://github.com/dirkhh/subsurfaceGravatar Linus Torvalds
* 'ui' of git://github.com/dirkhh/subsurface: Disable sorting by dive number Fix oversight in preference implementation Make columns for temperature, cylinder, and nitrox optional Show dive number in dive list Improve time marker handling and add printing of some time labels
2011-10-23Improve time marker handling and add printing of some time labelsGravatar Dirk Hohndel
We now draw time markers at most every 5 min, but no more than 12 markers. For convenience we do 5, 10, 15 or 30 min intervals. This allows for 6h dives - enough (I hope) for even the craziest divers - but just in case, for those 8h depth-record-breaking dives, we double the interval if this still doesn't get us to 12 or fewer time markers. We label the first and then every other time marker with the minute text. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2011-10-23Handle 'gas change' events correctlyGravatar Linus Torvalds
Dirk wrote the multi-cylinder support assuming that the dive computer always gives the selected cylinder index in the sample data - that's what his Uemis does, and it makes sense for any dive computer that supports multiple pressure transmitters. However, the other case is a dive computer where the pressure samples are all from cylinder 0, and any other cylinder will have the starting and ending pressure set by hand. And the gas change events show when the cylinder change happened. So this creates a "turn gas change events into pressure sample fixups" phase just before we actually analyze the pressures. That way the pressure analysis can alway sdo the right thing, regardless of how the data was originally stores in the dive. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-10-23Split the cylinder pressure analysis into a second loopGravatar Linus Torvalds
For the dive computers that give cylinder change events, we want to re-write the cylinder index and pressure information with the event information before we start analyzing the pressures. So instead of filling the plot info and analyzing in one loop, split it up into two phases. We'll do the "fix up cylinder pressure info based on events" in between those phases. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-10-23Plot tank pressures for multiple tanksGravatar Dirk Hohndel
The code keeps track of the segments of time when a specific tank was used and interpolates the pressure values for that tank based on a simulated average SAC rate for the times in which no pressure readings are available. This changes the way we used to plot the pressure when only beginning and end pressure of a tank are known; it used to be a straight line, now it is a sloped line where the steepness of the slope is proportional to the depth at that point - which is much more realistic. We also plot the pressures in two colors now. The old green for pressure data that came from the input file (that is not the same thing as saying it came from the computer - divelog for example appear to create pressure readings in the samples even if it only has beginning and end pressure). Interpolated values are plotted in yellow. If you have a sub-standard dive computer which has a frequently failing pressure sensor, you can now tell the parts of the plot where data was missing and we are filling in. The function that prints the pressure text labels had to be completely redone as it previously assumed one tank for the whole dive and simplisticly printed that tank's start and end pressure at the beginning and end of the profile plot with the y-values being the maximum and minimum pressure... This commit introduces a custom simplistic single linked list data structure to keep track of the pressure information per segment - Linus hated the idea of using GList for this purpose, and I have to admit that in the end this was very straight forward to implement and made the code easier to read and debug. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2011-10-22Change plot_info to use depth (instead of val) for depth valueGravatar Dirk Hohndel
Also changed a couple of corresponding local variables Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2011-10-20Add quick hack for "no sample pressure but tank index changed" caseGravatar Linus Torvalds
This isn't right if you switch back to the same cylinder multiple times, but for the first time it kind of works - just take the beginning cylinder pressure if we have one. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-10-20Fix up multi-cylinder code as per DirkGravatar Linus Torvalds
Too much cut-and-paste, as Dirk points out. With multiple cylinders, we're not necessarily going to start at time zero. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-10-19Start some rough multi-cylinder pressure data plot infrastructureGravatar Linus Torvalds
It doesn't actually do multiple cylinders correctly yet, but it should be a nice framework for it. And accidentally (not) it also ends up drawing the final line for the end pressure of a single-cylinder dive that has been fixed up by hand too. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-10-04Change event symbol to bigger yellow triangle with exclamation pointGravatar Dirk Hohndel
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2011-10-04Replace event text with small red triangle and tooltipGravatar Dirk Hohndel
We draw a little red triangle (of hardcoded size - not sure if this SHOULD scale with the size of the plot... I like it better if it doesn't) to the left of an event. We then maintain an array of rectangles that each circumscribe one of those event triangles and if the mouse pointer enters one of these rectangles then we display (after a short delay) a tooltip with the event text. Manually creating these rectangles, maintaining the coordinate offset, checking if we are inside one of these rectangles and then showing a tooltip... this all seems like there should be gtk functions to do this by default... but if there are then I failed to find them. So instead I manually implemented the necessary logic. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2011-10-04Change plot routine to take a drawing_area as argumentGravatar Dirk Hohndel
Previously we passed in width and height and the routine itself decided to keep 5% margin around each edge - oddly doing this with double precision, even though this is all integer coordinates. Instead we are now passing in a drawing_area. We are kind of abusing the cairo_rectangle_int_t data type here - but it seemed silly to redefine a new data type for this. Width and height give the size of the TOTAL drawing area (as before). x and y give the offset from the edges - so the EFFECTIVE drawing area is width-2x and height-2y This is in preparation for adding tooltips - those need to know the coordinate offsets from the edges - so having this hard coded inside the plot function didn't make sense anymore. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2011-09-30Distinguish internally between min pressure and end pressureGravatar Dirk Hohndel
And don't artificially end dives on min pressure This may be a problem for dive computers like Linus' Suunto Vyper Air where the failure mode seems to be _high_ pressure readings (that's scary, btw). If the transmitter fails at the end of the dive the pressure plot ends with incorrect high pressure. But that's simply a bug with the dive computer and not something that subsurface should hack around. Maybe we should offer a way to edit the incorrect data points instead. Always ending on the minimum pressure is definitely wrong as it causes bogus plots when you do a valve shutdown during the dive (which means that valid data gets plotted incorrectly). Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2011-09-29Fix the profile coloringGravatar Dirk Hohndel
We were missing the last sample (which is usually a fast ascent). Also, reduced the velocity smoothing to 15 seconds as the 30 seconds were hiding too much valid information Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2011-09-28Remove average depth from printGravatar Dirk Hohndel
It looks confusing in black and white Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2011-09-22Show events on the dive profileGravatar Linus Torvalds
This is *really* ugly. We really should just create some kind of widget that when moused over will show the event. Or something. Rather than putting text on top of other text: the events - when they happen - are usually bunched together (PO2 warnings, max depth, fast ascent leading to mandatory safety stop, you name it). But at least this way we see that the data is there, even if we see it in ugly ways. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-09-21Add helper function for doing depth unit calculationsGravatar Linus Torvalds
.. and use it for printing too. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-09-21Fix array underrun when calculating velocityGravatar Linus Torvalds
That code is messy. And it was buggy. Noticed by valgrind. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-09-20Fix 'struct plot_info' memory leakGravatar Linus Torvalds
The plot_info was never freed, so every time you'd plot something, we'd leak memory. I'm running valgrind to see if there's anything bad going on. So far it all looks fairly benign. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-09-20Fix up printing some moreGravatar Linus Torvalds
Use the actual degree sign for temperatures (°F and °C), and make sure everything uses the proper "set_source_rgb[a]()" wrappers to set the colors. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-09-20Print out only simplified depth profileGravatar Linus Torvalds
None of the colors, nothing like that. Just a gray fill and a plain black depth line. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-09-20Clean up and simplify depth plotGravatar Linus Torvalds
Dirk wrote this before we have the 'plot_info' structure with the cleaned-up dive info. No need to maintain that separate array of depths and seconds. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-09-20Don't show the smoothed dive profile or the min/max infoGravatar Linus Torvalds
It was good for debugging, it's not something we really want to show people. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-09-20Separate out the UI from the program logicGravatar Dirk Hohndel
The following are UI toolkit specific: gtk-gui.c - overall layout, main window of the UI divelist.c - list of dives subsurface maintains equipment.c - equipment / tank information for each dive info.c - detailed dive info print.c - printing The rest is independent of the UI: main.c i - program frame dive.c i - creates and maintaines the internal dive list structure libdivecomputer.c uemis.c parse-xml.c save-xml.c - interface with dive computers and the XML files profile.c - creates the data for the profile and draws it using cairo This commit should contain NO functional changes, just moving code around and a couple of minor abstractions. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2011-09-16Attempt to smooth out the velocity readingsGravatar Dirk Hohndel
If the velocity is slower than FAST then we look back up to 30 seconds and calculate the velocity for the past 30 seconds instead. For the first version I'm not doing the average of the changes but simply the change from beginning to end. The alternative would be to do another triangle smoothing or something like that - but as we don't know how many samples we have in the 30 second window, it's a little harder here. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2011-09-16Flip tank pressure graph to show the RIGHT wayGravatar Dirk Hohndel
This annoyed me from the first moment Linus added the tank pressure graph. As the pressure goes down, the graph needs to go down. Seriously. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2011-09-16Stop plotting the gas / consumption information into the profileGravatar Dirk Hohndel
And move the code into info.c where it now belongs Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2011-09-16Make handling of empty airconsumption string consistentGravatar Dirk Hohndel
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2011-09-16Stop tank / gas / consumption info from changing info_frame sizeGravatar Dirk Hohndel
Simply set it to an empty string with TWO lines when there is nothing to display Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2011-09-16Indicate vertical velocity through colorGravatar Dirk Hohndel
So far Linus has hated all of my attempts to visualize vertical velocity through color. This time I'm trying something dramatically new: there is no PURPLE involved. Maybe that will convince him of the value. We simply calculate the vertical velocity for the current plot segment (last sample point to this sample point - in this version even without divisions by zero) and assign a label based on the rate of change. These labels are translated through a predefined table into colors: Dark green is +/- 5ft/min (stable) Light green is descents up to 30ft/min and ascents up to 15ft/min Yellow is descents up to 60ft/min and ascents up to 30ft/min Orange is descents up to 100ft/min and ascents up to 60ft/min Red is outside of those ranges - you are most likely in danger Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2011-09-16Show tank / nitrox / air consumption information in the info_frameGravatar Dirk Hohndel
Even though we go down to an 8pt font the info_frame changes size when the air info is added. I don't like this but want to see how Linus would like this resolved before going overboard. Minor tweaks to the formating (we don't need two decimals when printing the liters of air consumed). This patch does NOT remove the plot of the air information in the profile graph. I think we want to remove that once we like the text where it is, but I wanted to do one thing at a time. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2011-09-16Tweak temperature plot to look better for small fluctuationsGravatar Dirk Hohndel
If the temperature is in a very narrow range the existing code visually exaggerated the fluctuations. This tries to dampen that effect a bit. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2011-09-16Tweak plot scaling a bitGravatar Linus Torvalds
Change the duration max rounding as noted by Dirk, and move the air consumption down further towards the bottom right corner. In particular, I make the text positions not scale with the window size, purely by the size of the text. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-09-16Minor corrections to printing of the last temperatureGravatar Dirk Hohndel
- the time stamp where we printed the last temp was wrong - we really shouldn't check mK for being identical - especially on dive computers that store a lot of samples Signed-off-by: Dirk Hohndel <dirk@hohndel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-09-16Use plot_info for final remaining temperature and pressure data plots tooGravatar Linus Torvalds
Ok, this is pretty much it now. Instead of having various random checks for "is the time of the sample past the end of the dive" hacks, we not plot all graphs from the cleaned-up plot_info structure instead of the raw samples. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-09-16Plot pressure data based on 'struct plot_info' rather than raw dive dataGravatar Linus Torvalds
Further movement to using the sanitized and cleaned-up plot info rather than the raw data. The raw dive data contains samples from the end of the dive that we don't want to drop, but that we also don't want to actually use for plotting the dive. So the eventual end goal here is to not ever use the raw dive samples directly for plotting, but use the diveplot data that we have analyzed for min/max (properly ignoring final entries) etc. There's still some data that we take from the samples when plotting, but it's getting rarer. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-09-16Do min/max pressure and temperature based on the non-surface dataGravatar Linus Torvalds
Do the min/max calculations only *after* we have removed the extra surface events at the end. The Uemis data in particular has a lot of surface events after the dive, and we don't really want to take them into account since we won't be plotting them anyway. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-09-16Plot temperature info using 'struct plot_info' rather than the raw dive samplesGravatar Linus Torvalds
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-09-16Start using 'plot_info' more for dive-time limitsGravatar Linus Torvalds
.. I'll want to move pressure limit calculations into the 'plot_info', so that we can do several passes of analysis and change dive limits etc without having to actually modify the dive data itself (or add new fields to 'struct dive' just for plotting). Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-09-15Print the end temperature of the diveGravatar Dirk Hohndel
Currently we print the temperature every five minutes. Especially with dive computers that keep rather frequent temperature samples that means that we have one more interesting data point that we don't label: the surface temperature at the end of the dive. This patch adds some logic to try to print the last temperature sample that was recorded before the dive ended - unless that same value has already been printed (to avoid silly duplications on dive computers with less frequent sampling) Signed-off-by: Dirk Hohndel <dirk@hohndel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-09-15Don't draw temperature plot past the end of the diveGravatar Dirk Hohndel
Just like we end depth and tank pressure plots once we are on the surface (this is relevant for dive computers like the uemis Zurich that keep recording samples after the end of the dive) Signed-off-by: Dirk Hohndel <dirk@hohndel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-09-13I'm trying to figure something out that prints reasonably..Gravatar Linus Torvalds
I'll get there. Shrink it down a bit, start adding notes and location, and maybe put three per page. That might work. .. or maybe I should just take a look at how others have done this. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-09-13Make the printout look differentGravatar Linus Torvalds
Not *better* mint you. Just different. I suck at graphs. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-09-13Add the capability to print a dive profileGravatar Linus Torvalds
Ok, this is the ugliest f*&$ing printout I have ever seen in my life, but think of it as a "the concept of printing works" commit, and you'll be able to hold your lunch down and not gouge out your eyeballs with a spoon. Maybe. I'm just doing the cairo display as-is for the printout, which is a seriously bad idea. I need to not try to do colors etc, and instead of having white lines on a black background I just need to make thelines be black on white paper. But that would involve actually changing the current "plot()" routine, which is against the point of the exercise right now. This really is just a demonstration of how to add printing capabilities. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>