Subsurface (software)

Subsurface is a piece of software for logging and planning scuba dives. It was initially designed and developed by Linus Torvalds and Dirk Hohndel in 2011.[3]

For other uses, see Subsurface (disambiguation).

Subsurface

Original author(s)	Linus Torvalds
Developer(s)	Dirk Hohndel, Linus Torvalds, and many others
Initial release	September 22, 2011 (2011-09-22)[1]
Stable release	4.9.6 / June 20, 2020 (2020-06-20)[2]
Repository	github.com/subsurface/subsurface
Written in	Qt, C, C++, Bourne Shell, Perl
Operating system	Linux, OS X, Windows, Android, iOS, (POSIX)
License	GPLv2
Website	subsurface-divelog.org

Subsurface is free and open-source software distributed under the terms of the GNU General Public License version 2.[4]

Overview

Subsurface allows a scuba diver or free diver to keep track of their dive data. It allows dive record data to be downloaded from many different makes and models of dive computers and can represent this data both graphically (depth profile, gas usage) and in tabular format. Digital photographs taken during the dive can be added to the log and the location of the dive site is displayed on a map. Decompression information based on the Bühlmann model or the VPM-B model and gas usage information can be displayed. The program also includes an interactive dive planner. The logbook can be exported in many file formats and to a Git-based cloud storage. There is a version running on mobile devices that can display the log book data as well as providing a limited ability to download new dives from a dive computer.[5]

Until version 3.9.2, Subsurface used GTK+ for its graphical user interface, and with version 4.0 it was switched to Qt 4.[6] At the LCA2014, Torvalds and Hohndel explained why they chose to re-write the GUI using Qt.[7][8][9]

Subsurface further depends on GConf, SQLite, ATK and makes use of OpenStreetMap and/or OpenSeaMap.

Subsurface officially runs on Linux, OS X and Microsoft Windows. It is written using the POSIX API and not the Linux API, so it should be portable to any POSIX-compliant operating system. The mobile version using Qt Quick via KDEs Kirigami framework allows it to run on Android and iOS.

As Subsurface binary software deployment for Linux users for the various Linux distributions turned out to be problematic,[10][11] the packaging was changed to a portable, self-contained, distro-agnostic AppImage in 2015.[12][13]

Supported dive computers

As of release 4.9.3 in September 2019, Subsurface supports the downloading and processing of dive log data from the following dive computers:[14]

Maker	Models
Aeris	500 AI A300 A300 AI A300CS Atmos 2 Atmos AI Atmos AI 2 Compumask Elite Elite T3 Epic F10 F11 Manta XR-1 NX XR-2
Apeks	Quantum X
Aqualung	i100 i200 i200C i300 i300C i450T i550 i550C i750TC i770R
Atomic Aquatics	Cobalt Cobalt 2
Beuchat	Mundial 2 Mundial 3 Voyager 2G
Citizen	Hyper Aqualand
Cochran	Commander I Commander II Commander TM EMC-14 EMC-16 EMC-20H
Cressi	Cartesio Drake Edy Giotto Goa Leonardo Newton
Deepblu	Cosmiq+
Dive Rite	NiTek Q NiTek Trio
DiveSystem	Orca iDive DAN iDive Deep iDive Easy iDive Free iDive Pro iDive Reb iDive Stealth iDive Tech iDive X3M
Genesis	React Pro React Pro White
Heinrichs Weikamp	Frog OSTC OSTC 2 OSTC 2 TR OSTC 2C OSTC 2N OSTC 3 OSTC 4 OSTC Mk2 OSTC Plus OSTC Sport OSTC cR
Hollis	DG02 DG03 TX1
Mares	Airlab Darwin Darwin Air Genius Icon HD Icon HD Net Ready M1 M2 Matrix Nemo Nemo Air Nemo Apneist Nemo Excel Nemo Steel Nemo Titanium Nemo Wide Nemo Wide 2 Puck Puck 2 Puck Air Puck Pro Quad Quad Air Smart Smart Air Smart Apnea
Oceanic	Atom 1.0 Atom 2.0 Atom 3.0 Atom 3.1 Datamask F10 F11 Geo Geo 2.0 Geo 4.0 OC1 OCS OCi Pro Plus 2 Pro Plus 2.1 Pro Plus 3 Pro Plus X VT 4.1 VT Pro VT3 VT4 VTX Veo 1.0 Veo 180 Veo 2.0 Veo 200 Veo 250 Veo 3.0 Versa Pro
Ratio	iDive Color Deep iDive Color Easy iDive Color Fancy iDive Color Free iDive Color Pro iDive Color Reb iDive Color Tech+ iDive Deep iDive Easy iDive Fancy iDive Free iDive Pro iDive Reb iDive Tech+ iX3M GPS Deep iX3M GPS Easy iX3M GPS Fancy iX3M GPS Pro iX3M GPS Reb iX3M GPS Tech+ iX3M Pro Deep iX3M Pro Easy iX3M Pro Fancy iX3M Pro Pro iX3M Pro Reb iX3M Pro Tech+
Reefnet	Sensus Sensus Pro Sensus Ultra
Scubapro	Aladin H Matrix Aladin Sport Matrix Aladin Square Chromis G2 G2 Console G2 HUD Mantis Mantis 2 Meridian XTender 5
Seabaer	T1 H3 HUDC
Seac	Guru Jack
Seemann	XP5
Shearwater Research	Nerd Nerd 2 Perdix Perdix AI Petrel Petrel 2 Predator Teric
Sherwood	Amphos Amphos Air Insight Insight 2 Vision Wisdom Wisdom 2 Wisdom 3
Subgear	XP Air XP-10 XP-3G XP-Air
Suunto	Cobra Cobra 2 Cobra 3 D3 D4 D4f D4i D5 D6 D6i D9 D9tx DX EON Core EON Steel Eon Gekko HelO2 Mosquito Solution Solution Alpha Solution Nitrox Spyder Stinger Vyper Vyper 2 Vyper Air Vyper Novo Vytec Zoop Zoop Novo
Techdiving	DiveComputer.eu
Tusa	Element II (IQ-750) IQ-700 Talis Zen (IQ-900) Zen Air (IQ-950)
Uemis	Zürich SDA
Uwatec	Aladin 2G Aladin Air Twin Aladin Air Z Aladin Air Z Nitrox Aladin Air Z O2 Aladin Prime Aladin Pro Aladin Pro Ultra Aladin Sport Aladin Sport Plus Aladin Tec Aladin Tec 2G Aladin Tec 3G Galileo Luna Galileo Sol Galileo Terra Galileo Trimix Memomouse Smart Com Smart Pro Smart Tec Smart Z
Zeagle	N2iTiON3

See also

References

1. "Subsurface release announcement". Retrieved 12 May 2014.
2. "Subsurface 4.9.6 released". 20 June 2020. Retrieved 16 July 2020.
3. "GitHub Subsurface v1.0 commit log". GitHub.com. Retrieved 17 June 2016.
4. "Subsurface README file". GitHub.com. Retrieved 17 June 2016.
5. "Subsurface User Manual". subsurface-divelog.org. Retrieved 9 November 2016.
6. "Subsurface 4.0 has been released". 15 December 2013.
7. "Gtk to Qt – a strange journey". 9 January 2014. Archived from the original on 21 March 2015.
8. "Gtk to Qt – a strange journey Video" (WebM). YouTube. 9 January 2014.
9. "The Biggest Problem With GTK & What Qt Does Good". Phoronix. 12 January 2014. Retrieved 13 April 2020.
10. Linus Torvalds (29 August 2014). "Q&A with Linus Torvalds" (video). DebConf 2014 Portland. debian.net. Retrieved 14 May 2016. 6:31 I have seen this first hand with the other project I'm involved with, which is my dive log app. We make binaries for Windows and OSX, we basically don't make binaries for Linux. Why? Because making binaries for Linux desktop applications is a major fucking pain in the ass.
11. This is just very cool. by Linus Torvalds on Google+ Dirk Hohndel: "I, as the app maintainer, don't want my app bundled in a distribution anymore. Way to much pain for absolutely zero gain. Whenever I get a bug report my first question is "oh, which version of which distribution? which version of which library? What set of insane patches were applied to those libraries?". No, Windows and Mac get this right. I control the libraries my app runs against. [...] With an AppImage I can give them just that. Something that runs on their computer."" (25 November 2015)
12. Torvalds, Linux (25 November 2015). "This is just very cool". Google+. I finally got around to play with the "AppImage" version of +Subsurface, and it really does seem to "just work".
13. Torvalds, Linux (25 November 2015). "This is just very cool". Google+ via archive.org. Archived from the original on 13 September 2017. I finally got around to play with the "AppImage" version of +Subsurface, and it really does seem to "just work".
14. "Supported Dive Computers". Subsurface. Retrieved 24 February 2020.

External links

• Official website