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image::mobile-images/Banner.jpg["Banner", align="center"]

[big]#MANUEL UTILISATEUR de Subsurface-mobile#

*Auteurs du manuel* : Willem Ferguson, Dirk Hohndel


[blue]#_Version 2, décembre 2017_#

Welcome as a user of _Subsurface_ and _Subsurface-mobile_, advanced dive
logging software with extensive infrastructure to describe, organize, and
interpret scuba and free dives. _Subsurface_ offers many advantages over
other similar software solutions, including compatibility with Windows,
macOS, Linux (many distributions), Android and iOS. In addition,
_Subsurface_ is open-source software that allows downloading dive
information from many dive computers.

Présentation de Subsurface-mobile
---------------------------------

_Subsurface-mobile_ est une version mobile limitée de _Subsurface_ qui vise
les smartphones Android et iOS et sur les tablettes, qui permet de
visualiser, entrer, partager et stocker des informations de plongées sur les
sites de plongées où un ordinateur n'est pas utile. Alors que la version de
_Subsurface_ pour ordinateur affiche bien plus d'informations détaillées
pour chaque plongée, la version mobile permet un accès facilité lors sur un
voyage de plongées, utile pour prouver une experience de plongées aux clubs
ou pour revoir les plongées précédentes. _Subsurface-mobile_ permet
également de collecter des positions GPS où sont effectuées les plongées.

Les utilisateurs de _Subsurface-mobile_ utilisent habituellement
l'application mobile en tant que compagnon de la version de _Subsurface_
pour ordinateur, partageant les informations de plongées entre les versions
mobile et de bureau. Cependant, _Subsurface-mobile_ peut également être
utilisée de façon indépendante de la version de bureau et ne requiert pas
l'utilisation du stockage cloud.

_Subsurface-mobile_ permet de :

- Télécharger et stocker les informations de plongées en utilisant le cloud
  _Subsurface_.
- Visualiser ces informations sur un périphérique nomade.
- Créer et ajouter manuellement de nouvelles plongées à votre carnet de
  plongées.
- Télécharger des données de plongées directement depuis plusieurs ordinateurs
  de plongées.
- Modifier de nombreux champs des données de plongées, comme le moniteur, le
  binôme, l'équipement ou les notes relatives à la plongée.
- Enregistrer, stocker et appliquer des positions GPS des plongées.
- Visualiser les positions des points GPS enregistrés et des plongées sur une
  carte.

Ces points sont détaillés dans la suite du manuel. _Subsurface-mobile_ ne
supporte pas le téléchargement des données de plongées depuis tous les
ordinateurs de plongées que supporte la version de bureau. Cette limitation
est due principalement à la capacité d'accéder à plusieurs types de
périphériques sur deux plateformes mobiles. Une partie des ordinateurs de
plongées utilisant une interface USB FTDI ou une interface Bluetooth /
Bluetooth LE sont accessibles depuis  _Subsurface-mobile_. Sous iOS, seul
les ordinateurs de plongées basés sur le Bluetooth LE sont supportés.

== Installer _Subsurface-mobile_  sur votre périphérique nomade

Vous trouverez _Subsurface-mobile_  dans _Google Play Store_ ou sur _iTunes
Store_ d'où vous pourrez les installer. Veuillez boter que les deux
contiennent également l'ancienne application '_Subsurface_ companion'
(utilisée uniquement pour enregistrer les points GPS). Vérifiez que vous
installez bien  _Subsurface-mobile_.

== Utiliser _Subsurface-mobile_ pour la première fois

Lorsque vous exécutez _Subsurface-mobile_ pour la première fois, un écran
d'accueil Subsurface est affiché pendant le chargement. Sur certains
périphériques, cela peut prendre plusieurs secondes. Après le chargement,
l'_écran d'informations de connexion au cloud_ apparait (voir l'image
ci-dessous, à gauche).

image::mobile-images/Credentials.jpg["FIGURE: Mobile credentials screen", align="center"]

=== When NOT Using Cloud Storage
Tap the "No cloud mode" button. The app will not access the _Subsurface_
cloud storage server to obtain dive log information. This means that dive
log information is stored on the mobile device only. If no dives have been
entered into the dive log yet (the usual case), an empty dive log is
created.

=== Using Cloud Storage
The _Subsurface_ developers provide a custom free Internet cloud storage
account that can be used for storing dive log information. This cloud
storage account can be created either from _Subsurface_ on the desktop or
_Subsurface-mobile_ using a mobile device; you can do full maintenance of a
dive log from _Subsurface-mobile_ alone. By using the same credentials wirh
_Subsurface-mobile_ and _Subsurface_ for desktop, the _Subsurface_ cloud
storage allows you to share your dive log between both (or even more than
two) devices.

The dive data are cached both on the mobile device as well as on the desktop
- it is easy to create backups of the data (for example in XML format) on
the desktop, and both mobile device and desktop keep a local copy of the
data so that the dive log is always accessible, even without Internet
connection. The Subsurface team never accesses a user's dive data without
explicit permission to do so, the data are not used for any purpose other
than providing them to the user who created them. There are no ads and no
harvesting / analysis of the data stored in the Subsurface cloud storage.

Enter an e-mail address and a password in the fields indicated on the
screen.  The e-mail address should be in lower case and the password should
contain a combination of letters from the alphabet (upper and lower case)
and/or numbers.  Tap the "Sign-in or Register" button. If you have already
set up an account from the _Subsurface_ desktop application, enter the same
credentials here.  Once the dive list has been downloaded from the cloud,
_Subsurface-mobile_ usually works only with the the local copy on the mobile
device. This avoids long delays or even failure of operations if there is a
bad (or no) internet connection, a situation fairly common at many dive
sites.

If this is a new account, a PIN screen will open (see image on right,
above). A PIN is e-mailed to the email address entered in the previous
step. Enter this PIN into the field indicated and tap the _Register_
button. The user information is stored on the cloud server and access to the
cloud is enabled. In this case the dive list is initially empty. Start
entering dives in the dive log or download dive information from a supported
dive computer.

The dive log can be updated automatically. If there is Internet
connectivity, _Subsurface-mobile_ accesses the cloud-based dive log to
verify that the local copy of the dive log is still the same as the log in
the cloud server. If not, the local copy and the copy on the server are
synchronized.

=== Changing the existing login credentials on the _Subsurface_ cloud

The login credentials can be changed, for an example in order to work with
multiple accounts. See the section on xref:S_ChangeCloudAccount[Changing to
a different _Subsurface_ cloud account].

== Menu Structure and User Interface

At the bottom of many Subsurface-mobile screens is a round button that
provides for several actions (see image below). The most common choice is
indicated in a round colored _action button_ (in the case below, edit a
dive). Alternative actions are indicated in a white _action bar_.  On
Android devices, use the Android Back button for "cancel", "discard" or
"back" actions. For example, when editing dive information, tapping the
action button saves the changes while the Android back button can be used to
cancel the edit without saving changes.

On iOS devices, on screens where a "back" action is enabled, a back arrow is
shown in the top left corner of the screen.

image::mobile-images/Actionbutton.jpg["FIGURE: Action Button", align="center"]

In order to have a consistent experience between iOS and Android,
_Subsurface-mobile_ on Android does not use the traditional "hamburger" menu
button in the top left or right corner of the screen to open menus.
Instead, _Subsurface-mobile_ uses a different user interaction philosophy
based on the Kirigami framework developed by the Plasma developers. There
are three ways to open the main menu:

- Tap the "hamburger" symbol in the lower left corner of the screen (easy to
  reach for hand held devices)
- Swipe towards the right across the left edge of the screen
- Drag the action button visible on most screens to the right

image::mobile-images/Menusystem.jpg["FIGURE: Dive management sub-panel", align="center"]

The image above indicates some of the important features of the menu
system.  On the left is the main menu, activated as described above. On the
right of the image are the items of all the submenus accessible.

All screenshots in this user manual are currently from the Android
version. The iOS screens look fairly similar.

== The Dive List

Most of the actions of _Subsurface-mobile_ center around the dives on the
dive list. While the dive list is loading from the cloud, a message appears
at the bottom of the screen, indicating that the cloud is being accessed,
after which the dive list is shown. Once the list is loaded you can scroll
up and down through your dive history.  To upload dives from a dive
computer, tap the blue action button. If you wish to add a dive manually,
tap the + button in the action bar (described below).  Tapping an existing
dive on the list brings up a display of _Details View_ for that dive (see
image on right below). This includes the dive profile as well as additional
information and notes.

image::mobile-images/Divelist2.jpg["FIGURE: Dive list screen", align="center"]

You can view other dives by swiping the _Details view_ to the right (for the
previous dive) or to the left (following dive).  Using the Action Bar, it is
also possible to delete the dive (tap the dustbin on the Action Bar) or to
view the dive location on a map viewer (Google Maps on Android, the Google
Maps web site on iOS; tap the GPS icon on the Action Bar.).

[[S_Edit_Dive]]
== Editing dive details

At the bottom of the dive details screen the action button is a pencil
(image on right, above).  Tapping the pencil button changes the page and
enables edit boxes that allow modifying the existing dive information,
e.g. adding text to the dive notes or changing the names or values of some
of the information (see image below).  It may be necessary to scroll the
window to access all the information.  At the bottom of the edit screen is a
_Save_ action button. Tap this to save the new information, after which the
dive list screen is updated and shown. To cancel any edits, tap the Android
_Back_ Button or the application back button at the top left of the screen
on iOS.

When the virtual keyboard is shown, to avoid screen clutter, the action
button is hidden.  Once you close the keyboard it is drawn again.

image::mobile-images/Editdive.jpg["FIGURE: Dive edit screen", align="center"]

[[S_Add_Dive]]
== Manually adding a new dive to the dive list

One can manually add a dive to the existing dive list. On the dive list tap
the "plus" sign in the action bar, or use the main menu and tap _Manage
dives -> Add dive manually_. This opens a screen that is identical to the
editing screen discussed above. When a dive is added manually, you cannot
directly add a dive profile from a dive computer. However, if you do not use
a dive computer, the duration, depth and several other bits of information
about the new dive can be entered. The _Action button_ at the bottom of the
screen contains a disk symbol. Tap this to save the new dive. To cancel any
edits, tap the Android Back Button.  The left-hand image below shows a
screenshot of a dive being created and the right-hand image shows the same
dive in _Details View_.

image::mobile-images/Manualdive.jpg["FIGURE: Manual dive entry screen", align="center"]

== Deleting a dive

The _Details View_ of a dive has an Action Bar, including a dustbin. If this
is tapped, the dive shown in the _Details View_ is deleted. You have a brief
opportunity to undo the delete by tapping the grey _Undo_ button in the
message that appears at the bottom of the screen (see image below).

image::mobile-images/Delete_undo.jpg["FIGURE: Undo delete dive", align="center"]

You can also delete a dive from the dive list by long-pressing a dive until
a red dustbin appears on the right-hand side (see image below). Tap the
dustbin. The dive is deleted without asking any confirmation because
_Subsurface-mobile_ assumes that the combination of a long tap on the dive
with another tap on the red dustbin is an unambiguous instruction to delete
the dive.

image::mobile-images/RedDustbin.jpg["FIGURE: delete dive from list", align="center"]

[[S_Download]]
== Download dives from a dive computer

The download deature supports only a limited number of dive computers. On
Android devices these are typically dive computers using an FTDI interface
using a USB OTG cable (but this is blocked on some Android devices by OS
settings). Android devices also support all Bluetooth dive computers that
are supported in Subsurface. And both Android and iOS devices allow direct
download of dive data from a hand full of Bluetooth LE enabled dive
computers.

Use the _Vendor name_ and _Dive Computer_ drop-downs to pick the correct
dive computer. When downloading from multiple different dive computers,
shortcut buttons to easily switch between them will appear below the
drop-downs.

The process for download is slightly different between the two OSs.  In our
testing we got the best results on iOS when the dive computer was in
Bluetooth mode before _Subsurface-mobile_ is started. On most dive computers
this is done through a menu entry, others (like the Suunto models) always
respond to BLE requests.

On Android devices, you should first establish a link between the Bluetooth
or Bluetooth LE dive computer and the mobile device using Android
utilities. See below for more details.

For USB dive computers, USB cables "normally" used for uploading dives to a
desktop/laptop computer do NOT work: these cables usually have a full-sized
("Type A") male USB plug on one end which plugs into the USB port of a
desktop/laptop computer. For downloads to a mobile device one needs a USB
OTG (USB On-The-Go) cable. In most cases it is required to plug the USB
cable "normally" used with the dive computer into a USB OTG cable which, in
turn, plugs into the mini-USB (or sometimes a USB "Type C")  receptacle of
the mobile device. The OTG cable usually has a full-size ("Type A") female
receptacle at one end which accommodates the full-sized male plug of the USB
cable "normally" used (see image below). This means that two cables are used
to connect the dive computer to the mobile device.

Please note that not all Android devices support OTG cables. And even on
some devices that do support those cables in general, _Subsurface-mobile_
still in some cases cannot access a dive computer through a serial port.

image::mobile-images/USB-OTG.jpg["FIGURE: USB-OTG cable", align="center"]

For Bluetooth-equipped dive computers and Android devices, establish a
Bluetooth connection between the dive computer and the mobile device. Use
the tools on the mobile device to achieve pairing between the Bluetooth dice
computer and the mobile device. For of Android devices, the Settings ->
Bluetooth tool is probably appropriate. Ensure pairing of the dive computer
and mobile device.  _Subsurface-mobile_ performs communication using both
Bluetooth and Bluetooth-low-energy (BTLE).  The appropriate choice of
Bluetooth communication is made by the software and the user need not be
concerned with this.

With pairing between dive computer and _Subsurface-mobile_ having been set
up, dive download is simple.  From the main menu, tap _Manage dives ->
Download from DC_. A screen is shown requiring that the user specify the
names of the vendor and model of the dive computer. For instance, when using
a Shearwater Petrel 2 dive computer, the vendor is _Shearwater_ and the Dive
computer name is _Petrel 2_. From the two dropdown lists at the top of the
screen, select the correct vendor and dive computer names (see image on the
left, below).

Now tap the button labeled _Download_. The downloaded dives appear in the
bottom part of the screen, the most recent dive at the top (see image on
right, below). Be patient because the download can take a few minutes.  As a
matter of fact, a complete first download from some dive computers has been
shown to take 45 minutes and longer.

After the download, each dive has a check-box on the left hand side, used
for selecting which dives you want to be added to the _Subsurface-mobile_
dive list: dives that are not checked are ignored. With the appropriate
downloaded dives having been checked, tap the button at the bottom left
labeled _Accept_. All the selected dives appear on the _Subsurface-mobile_
dive list. The downloaded dive information can now be edited as described in
the section above xref:S_Edit_Dive[Edit a dive].

image::mobile-images/DC-Download.jpg["FIGURE: DC download screen", align="center"]

== Viewing the dive location on Google Maps

In the _Details View_, the Action Bar at the bottom has a GPS pin on the
left hand side. Tap that pin and the dive site is shown in Google
Maps. Close Google Maps by using the Android _Back_ button or tapping on the
_Subsurface-mobile_ link in the top left corner on iOS.

Alternatively, the _Details View_ has a button at the top right hand marked
_Map it_. Tap this button to open Google Maps showing the dive site (image
below).

image::mobile-images/Map.jpg["FIGURE: Map of dive site", align="center"]

== Dive log management

A central part of _Subsurface-mobile_ is the ability to store the dive log
using the _Subsurface_ cloud storage.  This provides security against loss
or damage to the dive information in a local copy and allows the desktop
version of _Subsurface_ to access changes made using the mobile device. This
ability is accessed through the main menu (by dragging the Action Button to
the right, or by tapping the "Hamburger" icon at the bottom left of the
screen).  Tap the option _Dive management_, enabling a number of options:

=== Add new dive manually

This is described above under the section dealing with
xref:S_Add_Dive[Manually adding a new dive to the dive list].

=== Download from DC

This is described above under the section dealing with
xref:S_Download[Download dives from a dive computer].

=== Apply GPS fixes

This is described in the following main section, below.

=== Manually sync the dive log with the _Subsurface_ cloud storage

Upload the dives contained on the mobile device to the _Subsurface_ cloud
storage by tapping the option _Manual sync with cloud_.  This synchronizes
the local changes to the dive log with the cloud storage. It also downloads
changes made to the dive log using another device or computer and stored in
shared cloud storage.

=== Enable cloud auto sync

By default _Subsurface-mobile_ runs offline and only syncs the dive list
with cloud storage when explicitly told to do so (see above).  You can
choose to always sync with the cloud servers after every modification of the
dive list. This is not recommended unless you are in an area with fast and
reliable internet connection, as otherwise _Subsurface-mobile_ might appear
to hang between operations as it tries to connect to the cloud
server. Selecting _Enable cloud auto sync_ causes the local dive log to be
synchronized with the copy in the cloud every time that _Subsurface-mobile_
is closed. This option is a switch that allows auto sync to be either
activated or to be switched off.

== Recording dive locations using GPS

The fact that most smartphones have GPS facilities allows
_Subsurface-mobile_ to record the locations of dives. If the smartphone is
taken on the dive boat during a dive, locations will be automatically
recorded at regular intervals.  These locations can then be applied to dives
in the dive list. Here is how it's done:

[[S_ConfigureGPS]]
=== Configuring the GPS service

From the Main menu, select _Settings_. The Settings screen has a section for
configuring the GPS service (image below). GPS location data are collected
at regular intervals, e.g. every 5 minutes, or at regular distances,
e.g. after the boat has moved more than 200m, or a combination of both of
these approaches. Provide the appropriate information and tap the _Back_
button. The program is now ready to collect GPS positions.

image::mobile-images/GPS-config.jpg["FIGURE: GPS configure", align="center"]

=== Collecting GPS positions

Ensure that the GPS on the mobile device has been activated and that you
have given the app permission to access your location data.  Open the Main
Menu and select _GPS -> Run location service_. This activates the recording
of GPS locations.

image::mobile-images/GPSstart.jpg["FIGURE: GPS start", align="center"]

_Subsurface-mobile_ starts to collect GPS locations automatically, following
the preferences specified as described above. While the GPS location service
is running, all menus have a GPS symbol at the bottom of the menu,
indicating that the service is active. After return from the dive trip,
deactivate the collection of GPS data by tapping the option _Disable
location service_. The GPS symbol at the bottom of all manus disappears.

=== Storing the GPS data on the _Subsurface_ cloud

Activate the main menu and select the _GPS_ option that brings up the
submenu of GPS-related actions. Tap _Upload GPS data_ that saves the GPS
data on the _Subsurface_ cloud server. These GPS data are saved *separately*
from the other dive log data. All collected GPS data are kept on the Android
device, independent of whether they have been uploaded or not.

=== Downloading GPS data from the _Subsurface_ cloud

Download the GPS data that have been saved on the cloud (possibly by a
different device) by selecting _Download GPS Data_ from the GPS sub-panel.

=== Viewing GPS data

From the GPS submenu select _Show GPS fixes_. This brings up a list of GPS
positions obtained by the location service (image below). Two actions are
possible for each of the locations, enabled by dragging the handle (the
dotted matrix on the right below) to the left. This exposes two
options. Tapping the dustbin deletes this particular GPS location. Tapping
the teardrop-shaped icon (actually a Google Maps pin) opens up Google Maps
with a pin indicating the exact map position of the GPS record being
viewed. The two above options can be hidden by drawing the GPS record to the
right, again using the handle.

image::mobile-images/gpsmanagement.jpg["FIGURE: GPS management", align="center"]

=== Applying GPS data to dives in the dive log

Assuming that all the dives have been entered into the dive log or have been
downloaded from the _Subsurface_ cloud, apply the GPS positions to these
dives. GPS positions can therefore only be applied to dives in the dive
list.  From the _Dive management_ sub-panel, tap _Apply GPS fixes_. The dive
list contains the start and end times of each dive. Now, _Subsurface-mobile_
applies the first GPS position that falls within the dive period of each
dive. This results in a GPS position for each dive that is saved as part of
the dive log.

== Utilisation des paramètres pour _Subsurface-mobile_.

The Settings screen allows the customization of _Subsurface-mobile_. Many of
the settings involve dragging a slider switch to activate or deactivate a
particular setting.

[[S_ChangeCloudAccount]]
=== Changing to a different _Subsurface_ cloud account

Some users have more than one _Subsurface_ cloud account and with a need to
switch between accounts. Tap _Settings_ on the Main menu and scroll to the
section titled _Cloud status_ (see image below).  Tap the _Change_
button. This opens the _Cloud credentials_ screen.  change the credential
information, then tap the button _Sign-in or register_. The appropriate dive
list is shown.

image::mobile-images/SettingsCloudTheme.jpg["FIGURE: Settings: Cloud & Theme", align="center"]

=== Changing the color theme of _Subsurface-mobile_

_Subsurface-mobile_ has three color schemes to please users with different
tastes. This user manual shows the default color scheme, comprising blue
colors. Change to a pink or a dark color scheme by opening the main menu,
tap _Settings_, and scroll to the section with heading _Theme_ (see image
above).  Select the appropriate color theme by dragging the appropriate
slider on the righthand.

=== Configuring the GPS webservice

The Settings screen allows one to set up the way in which GPS positions are
collected during dives. See the section on xref:S_ConfigureGPS[Configuring
the GPS service].

=== Saving a detailed dive computer dive log

Under the heading _Dive computer_, you will find a switch to save a detailed
log each time dives are downloaded from a dive computer. This is important
for solving problems in downloading dives from the dive computer. When
contacting the developers with download problems, you will usually be asked
to provide the information in this log, which can be found in the root
folder of your local storage device as +libdivecomputer.log+. In the same
location you can also find a +subsurfacel.log+ which is always created and
which include more information which can be helpful when debugging problems
with Subsurface-mobile.

=== Activating the Developer submenu

The information in subsurface.log plus some additional information for
understanding the screen rendering of dive information as well as the way in
which _Subsurface-mobile_ processed information during a specific occasion
while running the app (see section below) is available through a _Developer_
menu at run time. Activate (or deactivate) this menu item on the Main Menu
by dragging the slider switch in the Settings screen.

== Developer submenu

If the Developer submenu has been activated in the Settings screen, the Main
menu has a _Developer_ item. By tapping this one has two options that are
relevant within the context of program development and debugging.

=== App log

This option shows the messages that _Subsurface-mobile_ generates while
running. While most users are not aware of these messages, they are often
crucial in detecting any abnormal behavior of the app. The App log can be
found in the root directory of the local storage of the mobile device.

=== Theme information

This option provides a wealth of information about the screen
characteristics of the mobile device and the font characteristics used by
_Subsurface-mobile_.