Advanced multi-platform divelog based on Qt
C++ C XSLT Shell QML CMake Other
Latest commit 4d0d37b Nov 23, 2016 @atdotde atdotde committed with dirkhh Show effective gradient factors for VPMB-plans
For each stop, this computes an effective gradient factor
that gives the same ceiling. Then, it does linear regression
to find values for GFlow and GFhigh that give a similar deco

Note that this optimises the average gradient factor. The
runtime however depends strongly at the gradient factor at
the last depth. So we don't necessarily to get the runtime

Signed-off-by: Robert C. Helling <>
Signed-off-by: Dirk Hohndel <>
Failed to load latest commit information.
.tx Add simple glossary Dec 29, 2013
Documentation Update bundled user-manual HTML files Nov 9, 2016
ReleaseNotes Match ReleaseNotes and version numbering with reality Nov 2, 2016
android-mobile Qt 5.7 requires at least Android SdkVersion 16 Jun 22, 2016
android Revert "Add a simple cp2130 libusb driver" Sep 22, 2016
appdata Replace other references to Nov 18, 2014
cmake/Modules Bump mobile version Sep 17, 2016
core Show effective gradient factors for VPMB-plans Nov 24, 2016
desktop-widgets Provide phots summary on dive list (Part 2) Nov 24, 2016
dives Fix Qt date interfaces for times before 1970 Apr 29, 2016
icons Provide phots summary on dive list (Part 2) Nov 24, 2016
marbledata Add 1x1 transparent png to replace missing marble data Jul 9, 2015
mobile-widgets QML UI: smaller fonts on narrow screens Sep 20, 2016
packaging Small fix for Ubuntu builds Nov 15, 2016
printing_templates printing_templates: mark 'dive.notes' as 'safe' Nov 16, 2015
profile-widget Deco mode for plannining is not deco mode for showing Nov 1, 2016
qt-models Provide phots summary on dive list (Part 2) Nov 24, 2016
scripts Document the heat map in the manual. Sep 28, 2016
smtk-import SmartTrak import - Add build capability to cmake Nov 12, 2015
tests Preferences tests: remove comments, move code Nov 1, 2016
theme HTML Export: Ignore case when searching for tags Oct 4, 2015
translations Pull latest translations Sep 20, 2016
xslt CSV import: convert imperial mean depth to metric Nov 15, 2016
.clang-format Reenable ForEachMacros in .clang-format Oct 19, 2015
.gitattributes Treat minified JavaScript as binary Jul 9, 2016
.gitignore Move subsurface-core to core and qt-mobile to mobile-widgets Apr 5, 2016
CMakeLists.txt Add commented out hack to dump all CMake variables Sep 23, 2016
CodingStyle CodingStype: add explanation how to install the QtCreator settings Sep 7, 2015
INSTALL Update required packages on INSTALL file Jun 18, 2016
LICENSE Move license file to LICENSE Sep 21, 2016
README Get README ready for the first Beta Sep 24, 2016
Readme.testing Information on writing test cases Apr 15, 2014
Readme.ubuntu Update Readme.ubuntu Jan 16, 2015
SupportedDivecomputers.html Mention Shearwater Nerd Oct 19, 2015
SupportedDivecomputers.txt Mention Shearwater Nerd Oct 19, 2015
TODO.CCR Update todo list for CCR Nov 18, 2014
descriptor3.tsv Add structured file with list of supported dive computers Dec 14, 2013
export-html.cpp Move the qtTranslator and ssrfTranslator pointers to qt-init.cpp May 2, 2016
gpl-2.0.txt Add second copy of the GPL Sep 23, 2016
subsurface-desktop-helper.cpp Settings update: Add "Dive Computer" settings to SettingsObjectWrapper Aug 27, 2016
subsurface-desktop-main.cpp Move the qtTranslator and ssrfTranslator pointers to qt-init.cpp May 2, 2016
subsurface-mobile-helper.cpp Fix compile for Subsurface-mobile Aug 27, 2016
subsurface-mobile-main.cpp Fix compile for Subsurface-mobile Aug 27, 2016
subsurface.debug Add subsurface.debug script to help debugging and install it (for Lin… Oct 29, 2015
subsurface.desktop Add a trailing ';' to the Keywords in the subsurface.desktop file Dec 22, 2014
subsurface.qrc Provide photos summary on dive list Nov 24, 2016
subsurface_enabled_translations Read the translations from the translations file Dec 16, 2015
subsurfacetemplate.tex Export to TeX file initialized Oct 12, 2016
terms Be more clear about deco MOD / switch depth and bottom MOD Jul 9, 2016
wreck.jpg Include images in profile Feb 6, 2014


This is the README file for Subsurface 4.6 Beta 1

Please check the ReleaseNotes.txt for details about new features and
changes since Subsurface 4.5.6 (and earlier versions).

Subsurface can be found at

Our user forum is at
We also try to respond to questions in the dive software
forum at

Report bugs and issues at

License: GPLv2

You can get the sources to the latest development version from the git

git clone git:// .

You can also browse the sources via gitweb at the same site.

If you want the latest release (instead of the bleeding edge
development version) you can either get this via git or the release tar
ball. After cloning run the following command:

git checkout v4.5.6  (or whatever the last release is)

or download a tar ball from:

Detailed build instructions can be found in the INSTALL file.

Basic Usage:

Install and start from the desktop, or you can run it locally from the
build directory:

On Linux:

$ ./subsurface

On Mac:

$ open

Native builds on Windows are not really supported (the official Windows
installers are both cross-built on Linux).

You can give a data file as command line argument, or (once you have
set this up in the Preferences) Subsurface picks a default file for
you when started from the desktop or without an argument.

If you have a dive computer supported by libdivecomputer, you can just
select "Import from Divecomputer" from the "Import" menu, select which
dive computer you have (and where it is connected if you need to), and
hit "OK".

The latest list of supported dive computers can be found in the file

Much more detailed end user instructions can be found from inside
Subsurface by selecting Help (typically F1). When building from source
this is also available as Documentation/user-manual.html. The
documentation for the latest release is also available on-line


There is a mailing list for developers:
Go to
to subscribe.

If you want to contribute code, please either send signed-off patches or
a pull request with signed-off commits.  If you don't sign off on them,
we will not accept them. This means adding a line that says
"Signed-off-by: Name <email>" at the end of each commit, indicating that
you wrote the code and have the right to pass it on as an open source


Also, please write good git commit messages.  A good commit message
looks like this:

	Header line: explain the commit in one line (use the imperative)

	Body of commit message is a few lines of text, explaining things
	in more detail, possibly giving some background about the issue
	being fixed, etc etc.

	The body of the commit message can be several paragraphs, and
	please do proper word-wrap and keep columns shorter than about
	74 characters or so. That way "git log" will show things
	nicely even when it's indented.

	Make sure you explain your solution and why you're doing what you're
	doing, as opposed to describing what you're doing. Reviewers and your
	future self can read the patch, but might not understand why a
	particular solution was implemented.

	Reported-by: whoever-reported-it
	Signed-off-by: Your Name <>

where that header line really should be meaningful, and really should be
just one line.  That header line is what is shown by tools like gitk and
shortlog, and should summarize the change in one readable line of text,
independently of the longer explanation. Please use verbs in the
imperative in the commit message, as in "Fix bug that...", "Add
file/feature ...", or "Make Subsurface..."

A bit of Subsurface history:

In fall of 2011, when a forced lull in kernel development gave him an
opportunity to start on a new endeavor, Linus Torvalds decided to tackle
his frustration with the lack of decent divelog software on Linux.

Subsurface is the result of the work of him and a team of developers since
then. It now supports Linux, Windows and MacOS and allows data import from
a large number of dive computers and several existing divelog programs. It
provides advanced visualization of the key information provided by a
modern dive computer and allows the user to track a wide variety of data
about their diving.

In fall of 2012 Dirk Hohndel took over as maintainer of Subsurface.