diff options
| author |  Dirk Hohndel <dirk@hohndel.org> | 2013-12-20 13:48:46 -0800 |
|---|---|---|
| committer | Dirk Hohndel <dirk@hohndel.org> | 2013-12-20 16:39:56 -0800 |
| commit | 17dfee415a72c498e1ead9584b3440c25d8a30e0 (patch) | |
| tree | bd01d266bc78d3cdf632bbf36a3b01eaea2719e1 /Documentation/user-manual.html.git | |
| parent | 5c3ed901b572bf0bb56eddc5d95c7cb0f132d83a (diff) | |
| download | subsurface-17dfee415a72c498e1ead9584b3440c25d8a30e0.tar.gz | |
Include the user-manual.html file in the git tree
This way when building Subsurface asciidoc is not necessary at all - except if
you want to work on the user manual and want to see the result of your work.
Previously the build wouldn't fail without asciidoc, but there would be no
working user manual when pressing F1 from within the application. This solves
the problem by shipping the HTML file with the sources.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Diffstat (limited to 'Documentation/user-manual.html.git')
| -rw-r--r-- | Documentation/user-manual.html.git | 2875 |
1 files changed, 2875 insertions, 0 deletions
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+<title></title>
+<style type="text/css">
+/*
+ * compact_subsurface.css, a special style sheet for Subsurface,
+ * modified by Willem Ferguson and derived from:
+ * compact.css, version 1.3 by Alex Efros <powerman@powerman.name>
+ * Licence: Public Domain
+ *
+ * Usage: asciidoc -a theme=compact_subsurface ...
+ */
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+</head>
+<body class="article">
+<div id="header">
+</div>
+<div id="content">
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/Subsurface4Banner.png" alt="Banner" />
+</div>
+</div>
+<div class="paragraph"><p><span class="big">USER MANUAL</span></p></div>
+<div class="paragraph"><p><strong>Manual authors</strong>: Jacco van Koll, Dirk Hohndel, Reinout Hoornweg, Linus Torvalds,
+Miika Turkia, Amit Chaudhuri, Jan Schubert, Willem Ferguson, Salvador Cuñat</p></div>
+<div class="paragraph"><p><span class="blue"><em>Version 4.0, December 2013</em></span></p></div>
+<div class="paragraph"><p>Welcome as a user of <em>Subsurface</em>, an advanced dive logging programme with
+extensive infrastructure to describe, organise and interpret scuba and free dives.
+<em>Subsurface</em> binaries are available for Windows PCs (Win XP or later), Intel
+based Macs (OS/X) and many Linux distributions. <em>Subsurface</em> can be built for
+many more hardware platforms and software environments where Qt and libdivecomputer
+are available.</p></div>
+<div class="paragraph"><p>The scope of this document is the use of the <em>Subsurface</em> program. To install
+the software, consult the <em>Downloads</em> page on the
+<a href="http://subsurface.hohndel.org/"><em>Subsurface</em> web site</a>.
+Please discuss issues with this program by sending an email to
+<a href="mailto:subsurface@hohndel.org">our mailing list</a> and report bugs at
+<a href="http://trac.hohndel.org">our bugtracker</a>. For instructions on how to build the
+software and (if needed) its dependencies please consult the INSTALL file
+included with the source code.</p></div>
+<div class="paragraph"><p><strong>Audience</strong>: Recreational Scuba Divers, Free Divers, Tec Divers, Professional
+Di vers</p></div>
+<div id="toc">
+ <div id="toctitle">Table of Contents</div>
+ <noscript><p><b>JavaScript must be enabled in your browser to display the table of contents.</b></p></noscript>
+</div>
+<div class="sect1">
+<h2 id="S_StartUsing">1. Start Using the Program</h2>
+<div class="sectionbody">
+<div class="paragraph"><p>The <em>Subsurface</em> window is usually divided into four panels and has a <strong>Main
+Menu</strong> (File Import Log View Filter Help) at the top of the window (for Windows
+and Linux) or the top of the screen (for Mac and Ubuntu Unity). The screen shots
+in this manual were taken on an Ubuntu system, so they don’t show the main menu
+as part of the <em>Subsurface</em> window. The four panels are:</p></div>
+<div class="paragraph"><p>1) The <strong>Dive List</strong> to the bottom left containing a list of all the dives in your
+dive log. You can select and highlight a dive on the dive list by clicking on
+it. In most situations you can also use the cursor up/down keys to switch
+between dives.</p></div>
+<div class="paragraph"><p>2) The <strong>Dive Map</strong> to the bottom right, showing your dive sites on a world map
+and centred on the site of the last selected dive.</p></div>
+<div class="paragraph"><p>3) The <strong>Dive Info</strong> to the top left, giving more detailed information on the
+selected dive, including some statistics for the selected dive or for all
+highlighted dive(s).</p></div>
+<div class="paragraph"><p>4) The <strong>Dive Profile</strong> to the top right, showing a graphical profile of the
+highlighted dive in the dive list.</p></div>
+<div class="paragraph"><p>You can drag the dividers between panels in order to change the size of any of
+the panels. <em>Subsurface</em> remembers the position of the dividers, so the next
+time <em>Subsurface</em> starts it uses the positions of the dividers when the program
+was executed previously.</p></div>
+<div class="paragraph"><p>If one dive is selected, the dive location, detailed information and profile of
+the <em>selected dive</em> are shown in the respective panels. On the other hand, if
+one highlights more than one dive the last highlighted dive is the <em>selected
+dive</em>, but summary data of all <em>highlighted dives</em> is shown in the <strong>Stats</strong> tab
+of the <strong>Dive Info</strong> panel.</p></div>
+<div class="imageblock" id="S_ViewPanels" style="text-align:center;">
+<div class="content">
+<img src="images/main_window.jpg" alt="The Main Window" />
+</div>
+</div>
+<div class="paragraph"><p>You can determine which of the four panels you wish to see by selecting the
+<strong>View</strong> option on the main menu and which gives the user several choices of
+display:</p></div>
+<div class="paragraph"><p><strong>All</strong>: show all four of the panels as in the screenshot above.</p></div>
+<div class="paragraph"><p><strong>Divelist</strong>: Show only the Dive List.</p></div>
+<div class="paragraph"><p><strong>Profile</strong>: Show only the Dive Profile of the selected dive.</p></div>
+<div class="paragraph"><p><strong>Info</strong>: Show only the Dive Notes about the last selected dive and statistics for
+all highlighted dives.</p></div>
+<div class="paragraph"><p><strong>Globe</strong>: Show only the world map, centred on the last selected dive.</p></div>
+<div class="paragraph"><p>Like many other functions that can be accessed via the Main Menu, these options
+can be triggered using keyboard shortcuts as well. The shortcuts for your system
+are shown with an underline in the menu entries. Since different Operating
+Systems and your chosen language may cause <em>Subsurface</em> to use different
+shortcut keys we won’t try to list them here in the user manual.</p></div>
+<div class="paragraph"><p>When you start the program for the first time, it shows no information at all.
+This is because the program doesn’t have any dive information available. In the
+following sections we will describe how to create a new logbook.</p></div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="S_NewLogbook">2. Creating a new logbook</h2>
+<div class="sectionbody">
+<div class="paragraph"><p>Select <em>File → New Logbook</em> from the main menu. All existing dive data are
+cleared so that new information can be added. If there is unsaved data in an open
+logbook, <em>Subsurface</em> will ask you if you want to save the open logbook before
+a new logbook is created.</p></div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="S_GetInformation">3. How to obtain dive information to store in your logbook</h2>
+<div class="sectionbody">
+<div class="paragraph"><p>There are several ways to add dive information to your logbook:</p></div>
+<div class="olist arabic"><ol class="arabic">
+<li>
+<p>
+Enter dive information by hand. This is typically useful if the diver did not
+use a dive computer and dives were recorded in a written logbook.
+</p>
+</li>
+<li>
+<p>
+Import dive information directly from a dive computer if it is supported by
+<em>Subsurface</em>. The latest list of dive computers supported by <em>Subsurface</em> can
+be found at:
+<a href="http://subsurface.hohndel.org/documentation/supported-dive-computers/">Supported dive computers</a>.
+</p>
+</li>
+<li>
+<p>
+Import dive information from another data base or file format. This is
+discussed in more detail below.
+</p>
+</li>
+</ol></div>
+<div class="sect2">
+<h3 id="S_EnterData">3.1. Entering dive information by hand</h3>
+<div class="paragraph"><p>This is usually the approach for dives without a dive computer. The basic record
+of information within <em>Subsurface</em> is a dive. The most important information
+in a simple written dive logbook usually includes dive type, date, time,
+duration, depth, the names of your dive buddy and of the dive master or dive guide,
+and some remarks about the dive. <em>Subsurface</em> can store much more information
+than this for each dive. In order to add a dive to your dive log, select <em>Log
+→ Add Dive</em> from the Main Menu. The program then shows three panels to enter
+information for a dive: two tabs in the <strong>Info</strong> panel (<strong>Dive Notes</strong> and
+<strong>Equipment</strong>), as well as the <strong>profile</strong> panel that displays a graphical profile of
+each dive. These panels are respectively marked <span class="red">A</span>, <span class="red">B</span> and <span class="red">C</span>
+in the figure below. We will now consider each of the tabs used for data entry.</p></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/AddDive1.jpg" alt="FIGURE: Add dive" />
+</div>
+</div>
+<div class="sect3">
+<h4 id="_dive_notes">3.1.1. Dive Notes</h4>
+<div class="paragraph"><p>This panel contains the date, time and place information for a particular dive,
+environmental conditions, co-divers and buddies, as well as some descriptive
+information. The message in a blue box at the top of the panel indicates that
+you are in the process of adding information about your dive. If you click on
+the <strong>Dive Notes</strong> tab, the following fields are visible:</p></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/AddDive2.jpg" alt="FIGURE: The Dive Notes tab" />
+</div>
+</div>
+<div class="paragraph"><p>The <strong>Starttime</strong> field reflects the date and the time of the dive. By clicking
+the down-arrow on the right of that field you can display a calendar from which
+you can choose the correct date. The hour and minutes values can also be edited
+by clicking on each of them in the text box and by overtyping the information
+displayed.</p></div>
+<div class="paragraph"><p><strong>Air and water temperatures</strong>: Type in the air and water temperatures during the
+dive into these fields to the right of the Starttime. You do not need to type
+in units of temperature: Subsurface supplies these automatically, you only need
+type the number. (The units selected in the <em>Preferences</em> <span class="red"><a id="URL link"></a></span>
+will determine whether metric or imperial units are displayed)</p></div>
+<div class="paragraph"><p><strong>Location</strong>: Here you enter the name of the dive site, e.g. "Tihany, Lake Balaton,
+Hungary". Auto completion of location names will make this easier when you
+frequently dive at the same sites.</p></div>
+<div class="paragraph"><p><strong>Coordinates</strong>: The geographic coordinates of the dive site should be entered
+here. These can come from three sources:</p></div>
+<div class="olist loweralpha"><ol class="loweralpha">
+<li>
+<p>
+You can enter the coordinates by hand if you happen to know what they are.
+You need to enter them as decimal degrees, e.g: N30° 13.49760' , E30° 49.30788'.
+</p>
+</li>
+<li>
+<p>
+You can find the coordinates on the world map in the bottom right hand part
+of the Subsurface window. The map displays a green bar indicating "No location
+data - move the map and double-click to set the location". Upon a double-click
+at the appropriate place, the green bar disappears and the coordinates are
+stored.
+</p>
+</li>
+<li>
+<p>
+You can obtain the coordinates from the <em>Subsurface</em> Companion app if you
+have an Android device with GPS and you stored the coordinates of the dive site
+using that device.
+<a href="#S_Companion">Click here for more information</a>
+</p>
+</li>
+</ol></div>
+<div class="paragraph"><p><strong>Divemaster</strong>: Enter the name of the dive master or dive guide for this dive.
+Again, this field offers auto completion based on the list of dive masters in the
+current logbook.</p></div>
+<div class="paragraph"><p><strong>Buddy</strong>: Enter the name(s) of the buddy / buddies who accompanied you on the
+dive. Auto completion based on the list of buddies in the current logbook is
+offered.</p></div>
+<div class="paragraph"><p><strong>Suit</strong>: Enter the type of diving suit you used for the dive. Just as with the
+other items auto completion of the suit description is available.</p></div>
+<div class="paragraph"><p><strong>Rating</strong>: Here you can provide a subjective overall rating of the dive on a
+5-point scale by clicking the appropriate star on the rating scale.</p></div>
+<div class="paragraph"><p><strong>Visibility</strong>: You can provide a rating of visibility during the dive on a
+5-point scale by clicking the appropriate star.</p></div>
+<div class="paragraph"><p><strong>Tags</strong>: You may enter tags here (separate them by commas) that describe the type
+of dive you performed. Examples of common tags are boat, drift, training, cave
+etc. <em>Subsurface</em> has many built-in tags. Auto completion is once again offered.
+For instance, if you typed <code>cav</code>, then the tags <strong>cave</strong> and <strong>cavern</strong> are shown
+for the user to choose from.</p></div>
+<div class="paragraph"><p><strong>Notes</strong>: Type any additional information here.</p></div>
+<div class="paragraph"><p>The <strong>Save</strong> and <strong>Cancel</strong> buttons are used to save all the information for tabs in
+the info panel and in the dive profile panel, so there’s no need to use them
+until ALL other information has been added. Here is an example of a completed
+Dive Notes panel:</p></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/CompletedDiveInfo.jpg" alt="FIGURE: A completed Dive Notes tab" />
+</div>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_equipment">3.1.2. Equipment</h4>
+<div class="paragraph"><p>The Equipment tab allows the user to enter information about the type of cylinder
+and gas used, as well as the weights used for a dive. The message in a blue
+box at the top of the panel:</p></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/BlueEditBar.jpg" alt="Blue edit bar" />
+</div>
+</div>
+<div class="paragraph"><p>indicates that you are in the process of adding equipment information for the
+dive. This is a highly interactive part of <em>Subsurface</em> and the information on
+cylinders and gases (entered here) determines the behaviour of the dive profile
+(top right-hand panel).</p></div>
+<div class="paragraph"><p><strong>Cylinders</strong>: The cylinder information is entered through a dialogue that looks
+like this:</p></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/CylinderDataEntry1.jpg" alt="FIGURE:Initial cylinder dialogue" />
+</div>
+</div>
+<div class="paragraph"><p>The + button at the top right allows you to add more cylinders for this dive.
+The dark dustbin icon on the left allows you to delete information for a
+cylinder.</p></div>
+<div class="paragraph"><p>Start by selecting a cylinder type. The AL80 cylinder is shown as the default
+cylinder type (you can change this default in the preferences if you usually
+dive with a different type of tank). If you wish to change the tank used on this
+dive, click on the AL80. This will bring up a dropdown list, accessible through
+a down-arrow:</p></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/CylinderDataEntry2.jpg" alt="FIGURE:The cylinder drop-down list button" />
+</div>
+</div>
+<div class="paragraph"><p>Use the drop-down list to select the cylinder type you used for this dive. The
+<strong>Size</strong> of the cylinder as well as its working pressure (<strong>WorkPress</strong>) will auto
+matically be shown in the dialogue.</p></div>
+<div class="paragraph"><p>Now you need to indicate the starting pressure and the ending pressure of the
+gas used during your dive. The unit of pressure (metric/imperial) corresponds
+to the setting you chose in the preferences <span class="red"><a id="LINK"></a></span>.</p></div>
+<div class="paragraph"><p>Finally you need to type in the gas mixture that you used. If you used air, you
+can enter 21% or leave the field blank. If you used nitrox or trimix, specify
+the percentage of oxygen and the percentage of helium. Leave any inappropriate
+fields empty. Add information for any additional cylinders by using the + button
+at the top right hand. Here is an example of a complete description for a
+dive using two cylinders (air and EAN40):</p></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/CylinderDataEntry3.jpg" alt="FIGURE: a completed cylinder dive information table" />
+</div>
+</div>
+<div class="paragraph"><p><strong>Weights</strong>: Information about the weight system used during a dive can be entered
+using a dialogue very similar to that of the cylinder information. If you
+click the + button on the top right of the weights dialogue, the table looks like
+this:</p></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/WeightsDataEntry1.jpg" alt="FIGURE: The Weights dialogue" />
+</div>
+</div>
+<div class="paragraph"><p>If you click on the <strong>Type</strong> field, a drop-down list becomes accessible through a
+down-arrow:</p></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/WeightsDataEntry2.jpg" alt="FIGURE: Weights type drop-down list button" />
+</div>
+</div>
+<div class="paragraph"><p>Use the drop-down list to select your type of weight system. In the <strong>Weight</strong>
+field, type in the weight used during the dive. It is possible to enter
+information for more than one weight system by adding an additional system using
+the + button on the top right hand. Weight systems can be deleted using the dustbin
+icon on the left hand. Here is an example of information for a dive with two
+types of weights: integrated and a weight belt:</p></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/WeightsDataEntry3.jpg" alt="FIGURE: A completed weights information table" />
+</div>
+</div>
+<div class="paragraph"><p>You do NOT need to click the <em>Save</em> button before you have completed the dive
+profile.</p></div>
+</div>
+<div class="sect3">
+<h4 id="_creating_a_dive_profile">3.1.3. Creating a Dive Profile</h4>
+<div class="paragraph"><p>The <strong>Dive Profile</strong> (a graphical representation of the depth of your dive as a
+function of time) is indicated in the panel on the top right hand of the
+<em>Subsurface</em> window. When you manually add a dive to your logbook, <em>Subsurface</em>
+presents a default dive profile that you need to modify to best represent the dive
+being described:</p></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/DiveProfile1.jpg" alt="FIGURE: Initial dive profile" />
+</div>
+</div>
+<div class="paragraph"><p><em>Modifying the dive profile</em>: When you move the cursor around the dive profile,
+its position is indicated by two red lines as shown below. The depth and time
+that the cursor represents are indicated, respectively on the left hand and
+bottom axes. The units (metric/imperial) on the axes are determined by the
+<strong>preference</strong> settings <span class="red"><a id="LINK"></a></span>. The dive profile itself comprises several
+line segments demarcated by waypoints (white dots on the profile, as shown
+above). The default dive depth is 15m.
+If your dive depth was 21m then you need to drag the appropriate waypoints
+downwards to represent 21m. To add a waypoint, double-click on any line segment.
+To remove a waypoint, right-click on it and choose "Remove this point" from the
+context menu. You will also need to drag the waypoints to represent an accurate
+time duration for your dive. Below is a dive profile that represents a dive
+to 21m for 31 min., followed by a 3 minute safety stop at 5m.</p></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/DiveProfile2.jpg" alt="FIGURE: Edited dive profile" />
+</div>
+</div>
+<div class="paragraph"><p><em>Specifying the gas composition:</em> The gas composition used is clearly indicated
+along the line segments of the dive profile. This defaults to the first gas
+mixture specified in the <strong>Equipment</strong> tab, which was air in the case of the
+profile illustrated above. The gas mixtures of segments of the dive profile can be
+edited. This is done by clicking on the gas description for a particular
+waypoint and selecting the appropriate choice from the context menu. Changing the
+gas for a waypoint affects the gas shown in the segment <em>to the left</em> of that
+waypoint. Note that only the gases defined in the <strong>Equipment</strong> tab appear in the
+context menu:</p></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/DiveProfile3.jpg" alt="FIGURE: Gas composition context menu" />
+</div>
+</div>
+<div class="paragraph"><p>Below is the profile of a dive to 21m for 31 min. with a switch from air to
+EAN40 on the ascent. In this case the first cylinder in the <strong>Equipment</strong> tab
+contained air and the second cylinder contained EAN40.</p></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/DiveProfile4.jpg" alt="FIGURE: Completed dive profile" />
+</div>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_saving_the_hand_entered_dive_information">3.1.4. Saving the hand-entered dive information</h4>
+<div class="paragraph"><p>The information entered in the <strong>Dive Notes</strong> tab, the <strong>Equipment</strong> tab as well as
+the <strong>Dive Profile</strong> can now be saved in your logbook by using the two buttons
+on the top right hand of the Dive Notes tab. If you click <em>Save</em>, the dive data
+are saved in the current logbook. If you click <em>Cancel</em>, the newly entered
+dive data are discarded. When you exit <em>Subsurface</em> it will prompt you to save
+the logbook with the new dive(s) on your computer.</p></div>
+</div>
+</div>
+<div class="sect2">
+<h3 id="S_ImportDiveComputer">3.2. Importing new dive information from your Dive Computer</h3>
+<div class="sect3">
+<h4 id="_connecting_and_importing_data_from_a_dive_computer">3.2.1. Connecting and importing data from a dive computer.</h4>
+<div class="paragraph"><p>The use of dive computers allows collecting a large amount of information about
+each dive, e.g. a detailed record of depth, durations, rates of ascent/descent
+and of gas partial pressures. <em>Subsurface</em> can capture this information and
+present it to you as part of the dive information. <em>Subsurface</em> can obtain dive
+information from a wide range of dive computers. The latest list of supported
+dive computers can be found at:
+<a href="http://subsurface.hohndel.org/documentation/supported-dive-computers/">Supported dive computers</a>.</p></div>
+<div class="admonitionblock">
+<table><tr>
+<td class="icon">
+<img src="images/icons/warning2.png" alt="Warning" />
+</td>
+<td class="content">Several dive computers consume more power when they are in their
+PC-Communication mode. <strong>This could drain your battery</strong>. We therefore
+recommend that you check if your dive computer is recharging when
+connected to the USB port of a PC. For example, several Suunto and Mares dive
+computers do not recharge through the USB connection. Please consult the manual
+of your dive computer if you are unsure if it will recharge or drain its
+batteries while connected to the USB port.</td>
+</tr></table>
+</div>
+<div class="paragraph"><p>To import dive information from a dive computer to your computer with <em>Subsurface</em>,
+it is necessary that the two pieces of equipment must communicate. This
+involves setting up the communications port (or mount point) of the computer
+with <em>Subsurface</em> that communicates with the dive computer. In order to set up
+this communication, you need to find the appropriate information to instruct
+<em>Subsurface</em> where and how to import the dive information. <strong>Appendix A</strong> provides
+the technical information to help you achieve this for different operating
+systems and <strong>Appendix B</strong> has dive computer specific information.</p></div>
+<div class="paragraph"><p>Now it is time to hook up your dive computer to your PC:</p></div>
+<div class="ulist"><ul>
+<li>
+<p>
+Connect your interface cable to a free USB port (or set up the Infrared
+ or Bluetooth connection as described later in this manual)
+</p>
+</li>
+<li>
+<p>
+Put your dive computer into PC Communication mode.
+ (You should consult the manual of your specific dive computer for
+your brand and type)
+</p>
+</li>
+<li>
+<p>
+In <em>Subsurface</em>, from the Main Menu, select <em>Import → Import From Dive Computer</em>.
+The following dialogue appears:
+</p>
+</li>
+</ul></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/ImportFromDC1.jpg" alt="FIGURE: Download dialogue 1" />
+</div>
+</div>
+<div class="paragraph"><p>Dive computers tend to keep a certain number of dives in their memory, even
+though these dives have already been imported to <em>Subsurface</em>. For that reason
+<em>Subsurface</em> only imports dives that have not been uploaded before. This makes
+the download process faster on most dive computers and also saves battery power
+of your dive computer (at least for those not charging while connected via USB).
+If, for some reason, you wish to import ALL dives from the dive computer,
+even though some may already be in the logbook, you can tick the box labeled
+<em>Force download of all dives</em>.</p></div>
+<div class="ulist"><ul>
+<li>
+<p>
+The dialogue has two drop-down lists, <strong>Vendor</strong> and <strong>Dive Computer</strong>. On the
+<strong>vendor</strong> drop-down list select the make of your computer, e.g. Suunto, Oceanic,
+Uwatec, Mares. On the <strong>Dive Computer</strong> drop-down list, select the model name of
+your dive computer, e.g. D4 (Suunto), Veo200 (Oceanic), or Puck (Mares).
+</p>
+</li>
+<li>
+<p>
+The <strong>Device or Mount Point</strong> drop-down list contains the USB or Bluetooth port
+name that <em>Subsurface</em> needs in order to communicate with your dive computer.
+Select the appropriate port name. Consult <strong>Appendix A</strong> and <strong>Appendix B</strong> for
+technical details to find the appropriate port information for your dive
+computer and, in some cases, how to do the correct settings to the operating system
+of your <em>Subsurface</em> computer.
+</p>
+</li>
+<li>
+<p>
+Click the <em>OK</em> button.
+</p>
+</li>
+<li>
+<p>
+If there is a problem in communicating with your dive computer, an error
+message will be shown, similar to this text: "Unable to open /dev/ttyUSB0 Mares
+(Puck Pro)". In this case, consult <strong>Appendix A</strong> for information specific to the
+operating system of your <em>Subsurface</em> computer and consult <strong>Appendix B</strong> for
+information specific to some dive computers.
+</p>
+</li>
+</ul></div>
+<div class="admonitionblock">
+<table><tr>
+<td class="icon">
+<img src="images/icons/important.png" alt="Important" />
+</td>
+<td class="content">In the case of <strong>communication failure</strong> then check the following:
+1) Is the dive computer still in PC-communication or Upload mode?
+2) Is the battery of the dive computer fully charged? If not then charge or
+replace the battery.
+3) Is the cable faulty? Does the cable work perfectly using other software? Has
+it worked before, or is this the first time you are using the cable?
+4) Consult <strong>Appendix A</strong> and make sure you specified the correct Mount Point
+(see above). If your <em>Subsurface</em> computer does not recognise the USB adaptor by
+showing an appropriate device name next to the Mount Point, then there is a
+possibility that the cable or USB adaptor is faulty. A faulty cable is the most
+common cause of communication failure between dive computer and <em>Subsurface</em>
+computer. It is also possible that your <em>Subsurface</em> computer is missing required
+drivers to interact with the download cable and connected dive computer.</td>
+</tr></table>
+</div>
+<div class="ulist"><ul>
+<li>
+<p>
+With communication established, watch how your data is retrieved from your
+dive computer!
+Depending on your make of computer and/or number of dives, this
+could take some time. Please be patient. The <em>Download</em> dialogue shows a
+progress bar at the bottom of the dialogue (but for some dive computers the
+progress information could be inaccurate as we cannot determine until after all
+data was downloaded how much downloadable data there is):
+</p>
+</li>
+</ul></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/ImportFromDC2.jpg" alt="FIGURE: Download dialogue 2" />
+</div>
+</div>
+<div class="paragraph"><p>When download of the dive information is complete, all the imported dives appear
+in the Dive List, sorted by date and time. Disconnect and switch off the dive
+computer to conserve its battery power.
+If you select a particular dive, the Dive Profile panel shows an informative
+graph of dive depth against time for that particular dive.</p></div>
+</div>
+<div class="sect3">
+<h4 id="S_EditDiveInfo">3.2.2. Updating the dive information imported from your dive computer.</h4>
+<div class="paragraph"><p>The information from your dive computer is not complete and you need to add more
+details in order to have a more complete record of your dives. To do this, use
+the <strong>Dive Notes</strong> and the <strong>Equipment</strong> tabs on the top left hand of the
+<em>Subsurface</em> window.</p></div>
+</div>
+<div class="sect3">
+<h4 id="_dive_notes_2">3.2.3. Dive Notes</h4>
+<div class="paragraph"><p>The date and time of the dive, gas mixture and perhaps water temperature is
+shown as obtained from the dive computer, but you need to add some information by
+hand in order for a more complete dive record. The message in a blue box at
+the top of the panel indicates that you are in the process of adding information
+about a dive. If you click on the <strong>Dive Notes</strong> tab, the following fields are
+visible:</p></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/AddDive3.jpg" alt="FIGURE: The Dive Notes tab" />
+</div>
+</div>
+<div class="paragraph"><p>The <strong>Starttime</strong> field reflects the date and the time of the dive, as supplied by
+the dive computer. It should therefore not be necessary to edit this, but you
+could make changes by clicking the down-arrow on the right of that field to
+display a calendar from which you can choose the correct date. The hour and
+minutes values can also be edited by clicking on each of them in the text box
+and by overtyping the information displayed.</p></div>
+<div class="paragraph"><p><strong>Air/water temperatures</strong>: Air and water temperatures during the dive are shown
+in these fields to the right of the Starttime. Many dive computers supply water
+temperature information and this field may therefore not require editing. If
+editing is required, you do not need to type in units of temperature:
+Subsurface supplies these automatically, only a number is required. (The units
+selected in the <em>Preferences</em> <span class="red"><a id="URL link"></a></span> will determine whether metric
+or imperial units are displayed)</p></div>
+<div class="paragraph"><p><strong>Location</strong>: Here type in text that describes the site where you did this dive,
+e.g. "Tihany, Lake Balaton, Hungary". Auto completion of location names will
+make this easier when you frequently dive at the same sites.</p></div>
+<div class="paragraph"><p><strong>Coordinates</strong>: The geographic coordinates of the dive site should be entered
+here. These can come from three sources:</p></div>
+<div class="olist loweralpha"><ol class="loweralpha">
+<li>
+<p>
+You can enter the coordinates by hand if you happen to know what they are.
+You need to enter them as decimal degrees, e.g: N30° 13.49760', E30° 49.30788'.
+</p>
+</li>
+<li>
+<p>
+You can find the coordinates on the world map in the bottom right hand part
+of the Subsurface window. The map displays a green bar indicating "No location
+data - move the map and double-click to set the location". Upon a double-click
+at the appropriate place, the green bar disappears and the coordinates are
+stored.
+</p>
+</li>
+<li>
+<p>
+You can obtain the coordinates from the <em>Subsurface</em> Companion app if you
+have an Android device with GPS and you stored the coordinates of the dive site
+using that device.
+<a href="#S_Companion">Click here for more information</a>
+</p>
+</li>
+</ol></div>
+<div class="paragraph"><p><strong>Divemaster</strong>: Enter the name of the dive master or dive guide for this dive.
+Again, this field offers auto completion based on the list of dive masters in
+the current logbook.</p></div>
+<div class="paragraph"><p><strong>Buddy</strong>: Enter the name(s) of the buddy / buddies who accompanied you on the
+dive. Auto completion based on the list of buddies in the current logbook is
+offered.</p></div>
+<div class="paragraph"><p><strong>Suit</strong>: Enter the type of diving suit you used for the dive. Just as with the
+other items auto completion of the suit description is available.</p></div>
+<div class="paragraph"><p><strong>Rating</strong>: Here you can provide a subjective overall rating of the dive on a
+5-point scale by clicking the appropriate star on the rating scale.</p></div>
+<div class="paragraph"><p><strong>Visibility</strong>: You can provide a rating of visibility during the dive on a
+5-point scale by clicking the appropriate star.</p></div>
+<div class="paragraph"><p><strong>Tags</strong>: You may enter tags here (separate them by commas) that describe the type
+of dive you performed. Examples of common tags are boat, drift, training, cave.
+<em>Subsurface</em> has many built-in tags. If you start to type a tag, the program
+will list the tags that correspond to your typing. For instance, if you typed
+<code>cav</code>, then the tags <strong>cave</strong> and <strong>cavern</strong> are shown for the user to choose from.</p></div>
+<div class="paragraph"><p><strong>Notes</strong>: Type any additional information here.</p></div>
+<div class="paragraph"><p>The <strong>Save</strong> and <strong>Cancel</strong> buttons are used to save all the information for tabs
+in the info panel and in the dive profile panel, so there’s no need to use them
+until ALL other information has been added. Here is an example of a completed
+Dive Notes panel:</p></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/CompletedDiveInfo.jpg" alt="FIGURE: A completed Dive Notes tab" />
+</div>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_equipment_2">3.2.4. Equipment</h4>
+<div class="paragraph"><p>The Equipment tab allows the user to enter information about the type of
+cylinder and gas you used, as well as the weights used for that dive. The message
+in a blue box at the top of the panel:</p></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/BlueEditBar.jpg" alt="FIGURE: Blue edit bar" />
+</div>
+</div>
+<div class="paragraph"><p>indicates that you are in the process of adding equipment information for the
+dive. This is a highly interactive part of <em>Subsurface</em> and the information on
+cylinders and gases (entered here) determines the behaviour of the dive profile
+(top right-hand panel).</p></div>
+<div class="paragraph"><p><strong>Cylinders</strong>: The cylinder information is entered through a dialogue that looks
+like this:</p></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/CylinderDataEntry1.jpg" alt="FIGURE: Initial cylinder dialogue" />
+</div>
+</div>
+<div class="paragraph"><p>In most cases <em>Subsurface</em> obtains the gas used from the dive computer and
+automatically inserts the gas composition(% oxygen) in the table. The + button at
+the top right allows you to add more cylinders for this dive. The dark dustbin
+icon on the left allows you to delete information for a cylinder.</p></div>
+<div class="paragraph"><p>Start by selecting a cylinder type. The AL80 cylinder is shown as the default
+cylinder type (you can change this default in the preferences if you usually
+dive with a different type of tank). If you wish to change the tank used on this
+dive, click on the AL80. This will bring up a drop-down list, accessible through
+a down-arrow:</p></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/CylinderDataEntry2.jpg" alt="FIGURE: The cylinder drop-down list button" />
+</div>
+</div>
+<div class="paragraph"><p>Use the drop-down list to select the cylinder type you used for this dive. The
+<strong>Size</strong> of the cylinder as well as its working pressure (<strong>WorkPress</strong>) will
+automatically be shown in the dialogue.</p></div>
+<div class="paragraph"><p>Now you need to indicate the starting pressure and the ending pressure of the
+specified gas during your dive. The unit of pressure (metric/imperial)
+corresponds to the setting you chose in the preferences <span class="red"><a id="LINK"></a></span>.</p></div>
+<div class="paragraph"><p>Finally you need to type in the gas mixture that you used. If you used air, you
+can enter 21% or leave the field blank. If you used nitrox or trimix, specify
+the percentage of oxygen and the percentage of helium. Leave any inappropriate
+fields empty. Add information for any additional cylinders by using the<br />
+button at the top right hand. Here is an example of a complete description for a
+dive using two cylinders (air and EAN40):</p></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/CylinderDataEntry3.jpg" alt="FIGURE: a completed cylinder dive information table" />
+</div>
+</div>
+<div class="paragraph"><p><strong>Weights</strong>: Information about the weight system used during a dive can be entered
+using a dialogue very similar to that of the cylinder information. If you click
+the + button on the top right of the weights dialogue, the table looks like
+this:</p></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/WeightsDataEntry1.jpg" alt="FIGURE:The Weights dialogue" />
+</div>
+</div>
+<div class="paragraph"><p>If you click on the <strong>Type</strong> field, a drop-down list becomes accessible through a
+down-arrow:</p></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/WeightsDataEntry2.jpg" alt="FIGURE:Weights type drop-down list button" />
+</div>
+</div>
+<div class="paragraph"><p>Use the drop-down list to select your type of weight system. In the <strong>Weight</strong>
+field, type in the weight used during the dive. It is possible to enter
+information for more than one weight system by adding an additional system
+using the + button on the top right hand. Weight systems can be deleted using
+the dustbin icon on the left hand. Here is an example of information for a dive
+with two types of weights: integrated and a weight belt:</p></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/WeightsDataEntry3.jpg" alt="FIGURE: A completed weights information table" />
+</div>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_saving_the_updated_dive_information">3.2.5. Saving the updated dive information</h4>
+<div class="paragraph"><p>The information entered in the <strong>Dive Notes</strong> tab, the <strong>Equipment</strong> tab can be
+saved with all the other information of your dives in your logbook by using the
+two buttons on the top right hand of the <strong>Dive Notes</strong> tab. If you click <em>Save</em>,
+the dive data are saved. If you click <em>Cancel</em>, the newly entered dive data are
+deleted, although the dive profile obtained from the dive computer will be
+retained. When you exit <em>Subsurface</em> there is a final prompt to confirm that
+the new data should be saved.</p></div>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_importing_dive_information_from_other_digital_data_sources_or_other_data_formats">3.3. Importing dive information from other digital data sources or other data formats</h3>
+<div class="paragraph" id="S_ImportingAlienDiveLogs"><p>Maybe you have a lot of dives logged using other dive log software. You don’t
+have to type all information by hand into <em>Subsurface</em>, because you can probably
+import your divelog. <em>Subsurface</em> will import divelogs from a range of other
+dive log software. Some software is supported natively (e.g. divelogs.de,
+JDiveLog, MacDive, and Suunto DM4), for others you have to export your logbook
+to XML and then <em>Subsurface</em> can import that XML file (Suunto DM3, DivingLog).
+<em>Subsurface</em> can also import UDDF and UDCF files that are used by some divelog
+software and even some divecomputers like the Heinrichs & Weikamp DR5. Finally,
+for some divelog software we currently suggest to import your logbook first
+into a webservice like <em>divelogs.de</em> and then import them from there with
+<em>Subsurface</em>, as divelogs.de supports a few additional logbook formats that
+<em>Subsurface</em> currently cannot parse.</p></div>
+<div class="paragraph"><p>When importing dives, <em>Subsurface</em> tries to detect multiple records for
+the same dive and merges the information as best as it can. If
+there are no time zone issues (or other reasons that would cause the
+beginning time of the dives to be significantly different) <em>Subsurface</em>
+will not create duplicate entries.</p></div>
+<div class="sect3">
+<h4 id="S_ImportingDivesSuunto">3.3.1. Importing dives from <strong>Suunto Divemanager 3 (DM3)</strong></h4>
+<div class="paragraph"><p>Before you can start importing dives from <em>Suunto Divemanager</em>, you first
+have to export the dives you want to import. <em>Subsurface</em> does not import
+directly from the <em>Suunto Divemanager</em> log files. The following procedures
+can be used for Linux and Windows.</p></div>
+<div class="sect4">
+<h5 id="_export_from_strong_suunto_divemanager_strong">Export from <strong>Suunto Divemanager</strong></h5>
+<div class="ulist"><ul>
+<li>
+<p>
+Start <em>Suunto Divemanager</em> and log in with the name containing the logs
+</p>
+</li>
+<li>
+<p>
+Do not start the import wizard to import dives from your computer.
+</p>
+</li>
+<li>
+<p>
+In the navigation tree on the left side of the program-window, select your
+dives.
+</p>
+</li>
+<li>
+<p>
+Within the list of dives, select the dives you would like to import later:
+</p>
+<div class="ulist"><ul>
+<li>
+<p>
+To select certain dives: hold <em>ctrl</em> and click the dive
+</p>
+</li>
+<li>
+<p>
+To select all dives: Select the first dive, hold down shift and select the
+last dive
+</p>
+</li>
+</ul></div>
+</li>
+<li>
+<p>
+With the dives marked, use the program menu <em>File → Export</em>
+</p>
+</li>
+<li>
+<p>
+The export pop-up will show
+</p>
+</li>
+<li>
+<p>
+Within this pop-up, there is one field called Export Path.
+</p>
+<div class="ulist"><ul>
+<li>
+<p>
+Click the browse button next to the field Export Path
+</p>
+<div class="ulist"><ul>
+<li>
+<p>
+A file-manager like window pops up
+</p>
+</li>
+<li>
+<p>
+Navigate to the directory where you want to store the Divelog.SDE file
+</p>
+</li>
+<li>
+<p>
+Optionally change the name of the file you want to save
+</p>
+</li>
+<li>
+<p>
+Click <em>Save</em>
+</p>
+</li>
+</ul></div>
+</li>
+<li>
+<p>
+You are back in the Export pop-up. Press the button <em>Export</em>
+</p>
+</li>
+</ul></div>
+</li>
+<li>
+<p>
+Your dives are now exported to the file Divelogs.SDE.
+</p>
+</li>
+</ul></div>
+</div>
+<div class="sect4">
+<h5 id="_reading_suunto_divemanager_export_in_subsurface">Reading Suunto Divemanager Export in Subsurface</h5>
+<div class="paragraph"><p>The file Divelogs.SDE can now be opened (or imported) in <em>Subsurface</em>.</p></div>
+</div>
+</div>
+<div class="sect3">
+<h4 id="S_ImportingDivesSuuntoDM4">3.3.2. Importing dives from <strong>Suunto Divemanager 4 (DM4)</strong></h4>
+<div class="paragraph"><p>To import divelog from <em>Suunto DM4</em>, you need to locate the DM4 database
+where the dives are stored. You can either look for the original
+database or take a backup of the dives. Both methods are described here.</p></div>
+<div class="sect4">
+<h5 id="_locating_the_suunto_dm4_database">Locating the Suunto DM4 database</h5>
+<div class="ulist"><ul>
+<li>
+<p>
+Start Suunto DM4
+</p>
+</li>
+<li>
+<p>
+Select <em>Help → About</em>
+</p>
+</li>
+<li>
+<p>
+Click <em>Copy</em> after text <em>Copy log folder path to clipboard</em>
+</p>
+</li>
+<li>
+<p>
+Now open Windows Explorer
+</p>
+</li>
+<li>
+<p>
+Paste the address to the path box at the top of the File Explorer
+</p>
+</li>
+<li>
+<p>
+The database is called DM4.db
+</p>
+</li>
+</ul></div>
+</div>
+<div class="sect4">
+<h5 id="_backing_up_suunto_dm4">Backing up Suunto DM4</h5>
+<div class="ulist"><ul>
+<li>
+<p>
+Start Suunto DM4
+</p>
+</li>
+<li>
+<p>
+Select <em>File - Create backup</em>
+</p>
+</li>
+<li>
+<p>
+From the file menu select the location and name for the backup, we’ll
+ use DM4 in here with the default extension .bak
+</p>
+</li>
+<li>
+<p>
+Click <em>Save</em>
+</p>
+</li>
+<li>
+<p>
+Your dives are now exported to the file DM4.bak
+</p>
+</li>
+</ul></div>
+</div>
+<div class="sect4">
+<h5 id="_reading_suunto_dm4_backup_in_em_subsurface_em">Reading Suunto DM4 backup in <em>Subsurface</em></h5>
+<div class="paragraph"><p>Importing the logs from DM4 does not require any special steps. You just
+do the following:</p></div>
+<div class="ulist"><ul>
+<li>
+<p>
+Open the following menu <em>File → Import File(s)</em>
+</p>
+</li>
+<li>
+<p>
+Browse your directories to the location where your DM4 backup is
+ stored
+</p>
+</li>
+<li>
+<p>
+Select the backup file you want to import and click <em>Open</em>
+</p>
+</li>
+</ul></div>
+<div class="paragraph"><p>It is also possible to do the importing from command line:</p></div>
+<div class="literalblock">
+<div class="content">
+<pre><code>subsurface MyDives.xml --import DM4.bak</code></pre>
+</div></div>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_importing_from_mares_dive_organiser_v2_1">3.3.3. Importing from Mares Dive Organiser V2.1</h4>
+<div class="paragraph"><p>Mares Dive Organiser is a Windows application. The dive log is kept as a
+Microsoft SQL Compact Edition data base with a .SDF filename extension. The
+data base includes all Dive Organiser-registered divers on the particular
+computer and all Mares dive computers used. The safest way to obtain a copy
+of this data base is, within Dive Organiser, to select Database → Backup
+from the main menu and to back up the data base to your desk top. This
+creates a zipped file DiveOrganiserxxxxx.dbf. Rename the file to
+DiveOrganiserxxxxx.zip. Inside the zipped directory is a file <em>DiveOrganiser.sdf</em>.
+Extract it from the zipped folder to your Desktop.</p></div>
+<div class="paragraph"><p>Then use <em>www.divelogs.de</em> as a mechanism to extract the dive information from
+the file. Create a user account in divelogs.de , log into that web site, then
+select Import Logbook → Dive Organiser from the menu on the left hand side.
+Follow the instructions carefully to transfer the dive information from the
+Dive Organiser data base to divelogs.de.</p></div>
+<div class="paragraph"><p>Then follow the instructions below to import dives from divelogs.de to
+<em>Subsurface</em>.</p></div>
+</div>
+<div class="sect3">
+<h4 id="S_ImportingDivelogsDe">3.3.4. Importing dives from <strong>divelogs.de</strong></h4>
+<div class="paragraph"><p>The import of dive information from <em>divelogs.de</em> is simple, using a single
+dialogue box. Select <em>Import→Import form Divelogs.de</em> from the Main Menu. This
+brings up a dialogue box (see figure on left [A] below). You need to enter a
+user-ID and password for <em>divelogs.de</em> into the appropriate fields. Then select
+the <em>Download</em> button. Download from <em>divelogs.de</em> starts immediately, evident
+on a progress bar in the dialogue box. At the and of the download, the
+successful status is indicated (see figure on the right [B], below). Select the
+<em>Apply</em> button. The imported dives appear in the <strong>Dive List</strong> panel.</p></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/Divelogs1.jpg" alt="FIGURE:Download from Divelogs.de" />
+</div>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_importing_dives_from_strong_macdive_strong">3.3.5. Importing dives from <strong>MacDive</strong></h4>
+<div class="paragraph"><p>Importing logs from MacDive is as easy as it gets. Do the following
+steps in Subsurface:</p></div>
+<div class="ulist"><ul>
+<li>
+<p>
+Open the following menu <em>File - Import File(s)</em>
+</p>
+</li>
+<li>
+<p>
+Browse your directories to the location where your MacDive logs are
+ stored
+</p>
+</li>
+<li>
+<p>
+Select the log file(s) you want to import and click <em>open</em>
+</p>
+</li>
+<li>
+<p>
+Click the OK button in the pop-up
+</p>
+</li>
+</ul></div>
+<div class="paragraph"><p>After a few moments, you see your existing logs in <em>Subsurface</em>. Now you can
+edit your dives like explained in the section <a href="#S_EditDiveInfo">Updating the Dive Information</a>.</p></div>
+<div class="paragraph"><p><em>Subsurface</em> imports all the relevant dive information
+excluding the used equipment and diver name.</p></div>
+<div class="paragraph"><p>It is also possible to do the import from command line:</p></div>
+<div class="literalblock">
+<div class="content">
+<pre><code>subsurface MyDives.xml --import MacDiveDives.xml</code></pre>
+</div></div>
+</div>
+<div class="sect3">
+<h4 id="S_ImportingDivinglog">3.3.6. Importing dives from <strong>DivingLog 5.0</strong></h4>
+<div class="paragraph"><p>Before you can start importing dives from <em>DivingLog</em> you first have to
+export those dives. Unfortunately DivingLog XML files give us no
+indication on the preferences set on your system. So in order for
+<em>Subsurface</em> to be able to successfully import XML files from DivingLog
+you first need to make sure that your copy of DivingLog is configured
+to use the Metric system (you can easily change this in <em>File →
+Preferences → Units and Language</em> by clicking the <em>Metric</em>
+button). Then do the following:</p></div>
+<div class="ulist"><ul>
+<li>
+<p>
+In Divinglog open the <em>File → Export → XML</em> menu
+</p>
+</li>
+<li>
+<p>
+Select the dives that you want to export
+</p>
+</li>
+<li>
+<p>
+Click on the export button and select the filename
+</p>
+</li>
+</ul></div>
+<div class="paragraph"><p>This file can now be opened in <em>Subsurface</em> (as described in the previous
+sections).</p></div>
+</div>
+<div class="sect3">
+<h4 id="S_ImportingDivesJDiveLog">3.3.7. Importing dives from <strong>JDiveLog</strong></h4>
+<div class="paragraph"><p>JDiveLog stores its information in files with the extension of .jlb that contain
+all the information except images in XML format.</p></div>
+<div class="paragraph"><p>By using <em>File → Import File(s)</em> from the Main Menu you get a pop-up asking
+for the file name. To import your JDiveLog file(s) do the following:</p></div>
+<div class="ulist"><ul>
+<li>
+<p>
+Open <em>File → Import File(s)</em> on the menu
+</p>
+</li>
+<li>
+<p>
+Browse your directories to the location where your *.jlb file is
+</p>
+</li>
+<li>
+<p>
+Select your existing *.jlb file and click <em>open</em>
+</p>
+</li>
+<li>
+<p>
+Click the OK button in the pop-up
+</p>
+</li>
+</ul></div>
+<div class="paragraph"><p>After a few moments, you see your existing logs in <em>Subsurface</em>. Now you can
+edit your dives like explained in the section <a href="#S_EditDiveInfo">Updating the Dive Information</a>.</p></div>
+<div class="paragraph"><p>Information that is imported from JDiveLog into the <strong>location</strong> field:</p></div>
+<div class="ulist"><ul>
+<li>
+<p>
+Extended dive location information
+</p>
+</li>
+</ul></div>
+<div class="paragraph"><p>Information that is merged into the <strong>notes</strong> field:</p></div>
+<div class="ulist"><ul>
+<li>
+<p>
+Used amount of weight
+</p>
+</li>
+<li>
+<p>
+Used type of suit
+</p>
+</li>
+<li>
+<p>
+Used type of gloves
+</p>
+</li>
+<li>
+<p>
+Type of dive
+</p>
+</li>
+<li>
+<p>
+Dive activity
+</p>
+</li>
+</ul></div>
+<div class="paragraph"><p>Alternatively, you can start <em>Subsurface</em> with the --import command line
+which will have the same effect:</p></div>
+<div class="literalblock">
+<div class="content">
+<pre><code>subsurface MyDives.xml --import JDiveLogDives.jlb</code></pre>
+</div></div>
+<div class="paragraph"><p>will open your divelog (assuming that’s called MyDives.xml) and then
+import the dives from JdivelogDives.jlb. You can now save the combined
+divelog back as MyDives.xml.</p></div>
+</div>
+<div class="sect3">
+<h4 id="S_Importingkenozooid">3.3.8. Importing dives from <strong>Kenozooid</strong></h4>
+<div class="paragraph"><p><em>Kenozooid</em> uses UDDF to store dives and is tested to work with <em>Subsurface</em>.
+Make sure you are not using compressed files when importing to <em>Subsurface</em>
+or uncompress them manually beforehand.</p></div>
+</div>
+<div class="sect3">
+<h4 id="S_ImportingUDDF">3.3.9. Importing UDDF Dives</h4>
+<div class="paragraph"><p><em>Subsurface</em> supports UDDF as a generic import format.
+Some attributes in your file may not get processed properly. Select
+<em>Import→Import Files</em> from the Main Menu. Then select the UDDF file to
+be imported.</p></div>
+</div>
+</div>
+<div class="sect2">
+<h3 id="S_Companion">3.4. Importing GPS coordinates with the Subsurface Companion app for mobile phones</h3>
+<div class="paragraph"><p>If you have an Android device with GPS, you can obtain the coordinates of the
+place where you are diving and automatically pass them to your Subsurface
+divelog. To do this you need to:</p></div>
+<div class="ulist"><ul>
+<li>
+<p>
+Register on the <a href="http://api.hohndel.org/login/">Subsurface companion web page</a>.
+You will receive a confirmation mail with instructions and a personal <strong>DIVERID</strong>,
+a long number that gives access to the companion app capabilities.
+</p>
+</li>
+<li>
+<p>
+Download the app from
+<a href="https://play.google.com/store/apps/details?id=org.subsurface">Google Play Store</a> or from <a href="http://f-droid.org/repository/browse/?fdfilter=subsurface&fdid=org.subsurface">F-Droid</a>.
+</p>
+</li>
+</ul></div>
+<div class="sect3">
+<h4 id="_using_the_subsurface_companion_app_on_your_smartphone">3.4.1. Using the Subsurface companion app on your smartphone</h4>
+<div class="paragraph"><p>On first use the app has three options:</p></div>
+<div class="ulist"><ul>
+<li>
+<p>
+<em>Create a new account.</em> Equivalent to registering in Subsurface companion page.
+</p>
+</li>
+<li>
+<p>
+<em>Retrieve an account.</em> If you forgot your DIVERID you will receive an email
+to recover the number.
+</p>
+</li>
+<li>
+<p>
+<em>Use an existing account.</em> You are prompted for your DIVERID. The app saves
+your DIVERID and does not ask for it again unless you use the <em>Disconnect</em> menu
+option (see below).
+</p>
+</li>
+</ul></div>
+<div class="paragraph"><p>Now you’re ready to get a dive position and send it to the server. The Android
+display will look like the left hand image (A) below, but without any dive.</p></div>
+<div class="paragraph"><p>Touching the "+" icon on the top right to add a new dive site. You will be
+prompted for a place name (or asked to activate the GPS if it was turned off).
+The main screen shows a list of dive locations, each with place name, date and
+time. Some dives may have an arrow-up icon on the selection box to the left (see
+image B in the middle, below) indicating that they require upload to the server.</p></div>
+<div class="paragraph"><p>There are several ways to send dives to the server; the easiest is by simply
+selecting the dive. See middle image below (B):</p></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/Companion.jpg" alt="FIGURE: Screen shots (A-C) of companion app" />
+</div>
+</div>
+<div class="paragraph"><p>Touching the right arrow will send it to the server.</p></div>
+<div class="admonitionblock">
+<table><tr>
+<td class="icon">
+<img src="images/icons/important.png" alt="Important" />
+</td>
+<td class="content">Be careful, the trash on the right means exactly what it is supposed to mean,
+it deletes the dive location(s).</td>
+</tr></table>
+</div>
+<div class="paragraph"><p>The new dive points are now stored on the server and can be downloaded to the
+<em>Subsurface</em> dive log whenever you upload or add your dive to <em>Subsurface</em>.
+After a dive trip using the Companion app, all dive locations are ready to be
+saved on your Subsurface dive log (see below).</p></div>
+<div class="sect4">
+<h5 id="_settings_on_the_companion_app">Settings on the Companion app</h5>
+<div class="paragraph"><p>Selecting the <em>Settings</em> menu option results in the right hand image above ©.</p></div>
+</div>
+<div class="sect4">
+<h5 id="_server_and_account">Server and account</h5>
+<div class="ulist"><ul>
+<li>
+<p>
+<em>Web-service URL.</em> This is predefined (<a href="http://api.hohndel.org/">http://api.hohndel.org/</a>)
+</p>
+</li>
+<li>
+<p>
+<em>User ID.</em> Obtained by registering as indicated above. The easiest way to
+introduce it is simply to copy and paste from the confirmation mail but, off
+course, you can type it each character at a time.
+</p>
+</li>
+</ul></div>
+</div>
+<div class="sect4">
+<h5 id="_synchronization">Synchronization</h5>
+<div class="ulist"><ul>
+<li>
+<p>
+<em>Synchronize on startup.</em> If selected, dives in the Android device and those
+on the web service will synchronize each time you start the app.
+</p>
+</li>
+<li>
+<p>
+<em>Upload new dives.</em> If selected, each time you add a dive location it will
+automatically be sent to the server.
+</p>
+</li>
+</ul></div>
+</div>
+<div class="sect4">
+<h5 id="_background_service">Background service</h5>
+<div class="paragraph"><p>Instead of entering a unique dive location, you can leave the service running
+in the background on your device, continuously collecting GPS locations.</p></div>
+<div class="paragraph"><p>The settings below define the behaviour of the service:</p></div>
+<div class="ulist"><ul>
+<li>
+<p>
+<em>Min duration.</em> In minutes. The app’ll try to get a position each X minutes
+until you stop it.
+</p>
+</li>
+<li>
+<p>
+<em>Min distance.</em> In meters. Minimum distance between two position fixes.
+</p>
+</li>
+<li>
+<p>
+<em>Name template.</em> The name the app will use when saving the position fixes.
+</p>
+</li>
+</ul></div>
+<div class="admonitionblock">
+<table><tr>
+<td class="icon">
+<img src="images/icons/info.jpg" alt="Tip" />
+</td>
+<td class="content"><em>How does the background service work?</em> Let’s assume we’ve set 5 minutes and 50
+meters in the settings above, the app will fix a location, then another one
+each 5 minutes. If this 2nd (3rd, 4th …) location is within a radius of 50
+meters from the previous one, it is not saved. After another 5 minutes there will
+be a new try, and so on. This way, if we are in a static position, we’ll only
+get one location fix, but if we travel we can have a trace of our journey.</td>
+</tr></table>
+</div>
+</div>
+<div class="sect4">
+<h5 id="_other">Other</h5>
+<div class="ulist"><ul>
+<li>
+<p>
+<em>Mailing List.</em> The mail box for <em>Subsurface</em>. You can send an email to the
+Subsurface mailing list.
+</p>
+</li>
+<li>
+<p>
+<em>Subsurface website.</em> A link to the URL of Subsurface web
+</p>
+</li>
+<li>
+<p>
+<em>Version.</em> Displays the current version of the companion app.
+</p>
+</li>
+</ul></div>
+</div>
+<div class="sect4">
+<h5 id="_search">Search</h5>
+<div class="paragraph"><p>Here you can search your saved dive locations by the name or by date and hour.</p></div>
+</div>
+<div class="sect4">
+<h5 id="_start_service">Start service</h5>
+<div class="paragraph"><p>Initiates the <em>background service</em> depending on the previously defined settings.</p></div>
+</div>
+<div class="sect4">
+<h5 id="_disconnect">Disconnect</h5>
+<div class="paragraph"><p>This is a badly named option. It disconnects your app from the server by
+resetting your ID in the app, showing the first screen where you can create an
+account, retrieve the ID for an existing one or use your own ID. Disconnecting
+is useful if you download the dive positions of another registered diver using
+your Android device.</p></div>
+</div>
+<div class="sect4">
+<h5 id="_send_all_locations">Send all locations</h5>
+<div class="paragraph"><p>This option sends all locations stored in the Android device to the server.</p></div>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_downloading_dive_locations_to_your_subsurface_divelog">3.4.2. Downloading dive locations to your Subsurface divelog</h4>
+<div class="paragraph"><p>You have to download dive(s) from a dive computer or enter dives manually into
+<em>Subsurface</em> before obtaining the GPS coordinates from the server. The download
+dialog can be reached via <em>Ctrl+G</em> or from the <em>Subsurface</em> Main Menu <em>Import
+→ Import GPS data from Subsurface Service</em>, resulting in the image on the
+left (A), below. On first use the DIVERID text box will be blank. Provide the
+DIVERID. Then select the <em>Download</em> button and the download begins. When this
+is completed you see the screen on the right (B), below:</p></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/DownloadGPS.jpg" alt="FIGURE: Downloading Companion app GPS data" />
+</div>
+</div>
+<div class="paragraph"><p>Note that the <em>Apply</em> button is now active. Click on it to update the locations
+of the newly entered or uploaded dives in <em>Subsurface</em> which applies the
+coordinates and names you gave them for all the new dives that match the date-times
+of the uploaded GPS localities.</p></div>
+<div class="admonitionblock">
+<table><tr>
+<td class="icon">
+<img src="images/icons/info.jpg" alt="Note" />
+</td>
+<td class="content">Features, issues and tips._ Since <em>Subsurface</em> matches GPS locations from the
+Android device and dive information from your dive computer based on date-time
+data, automatic assignment of GPS data to dives is dependent on agreement of
+date and time between these two devices. If there is a large difference between
+the time in your dive computer and the time in your Android device,
+<em>Subsurface</em> is unable to identify the dive that matches a location and nothing
+happens. Similar date-times may be not always be possible. A dirty hack is
+manually editing the date-time of a dive in Subsurface’s Dive List <em>before</em>
+downloading the GPS data and then to edit the date-time back again <em>after</em>
+downloading GPS data.</td>
+</tr></table>
+</div>
+</div>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_obtaining_more_information_about_dives_entered_into_the_logbook">4. Obtaining more information about dives entered into the logbook</h2>
+<div class="sectionbody">
+<div class="sect2">
+<h3 id="_the_strong_dive_info_strong_tab_for_individual_dives">4.1. The <strong>Dive Info</strong> tab (for individual dives)</h3>
+<div class="paragraph"><p>The Dive Info tab gives some summary information about a particular dive that
+has been selected in the <strong>Dive List</strong>. Useful information here includes the
+surface interval before the dive, the maximum and mean depths of the dive, the
+gas volume consumed, the surface air consumption (SAC) and the number oxygen
+toxicity units (OTU) incurred.</p></div>
+</div>
+<div class="sect2">
+<h3 id="_the_strong_stats_strong_tab_for_groups_of_dives">4.2. The <strong>Stats</strong> tab (for groups of dives)</h3>
+<div class="paragraph"><p>The Stats tab gives summary statistics for more than one dive, assuming that
+more than one dive have been selected in the <strong>Dive List</strong>. Highlight more than
+one dive by the standard Ctrl-click or Shift-click of the mouse. If only one
+dive has been selected, figures pertaining to only that dive are given. This tab
+shows the number of dives selected, the total amount of dive time in these dives,
+as well as the minimum, maximum and mean for the dive duration, dive depth,
+water temperature and surface air consumption (SAC).</p></div>
+</div>
+<div class="sect2">
+<h3 id="S_DiveProfile">4.3. The <strong>Dive Profile</strong></h3>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/Profile2.png" alt="Typical dive profile" />
+</div>
+</div>
+<div class="paragraph"><p>Of all the panels in <em>Subsurface</em>, the Dive Profile contains the most detailed
+information about each dive. The main item in the Dive profile is the graph of
+dive depth as a function of time. In addition to the obvious information of
+the depth it also shows the ascent and descent rate compared to the recommended
+speed of going up or down in the water column. This information is given using
+different colours:</p></div>
+<div class="tableblock">
+<table rules="all"
+width="100%"
+frame="border"
+cellspacing="0" cellpadding="4">
+<col width="33%" />
+<col width="33%" />
+<col width="33%" />
+<tbody>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>Colour</strong></p></td>
+<td align="left" valign="top"><p class="table"><strong>Descent speed (m/min)</strong></p></td>
+<td align="left" valign="top"><p class="table"><strong>Ascent speed (m/min)</strong></p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table">Red</p></td>
+<td align="left" valign="top"><p class="table">> 30</p></td>
+<td align="left" valign="top"><p class="table">> 18</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table">Orange</p></td>
+<td align="left" valign="top"><p class="table">18 - 30</p></td>
+<td align="left" valign="top"><p class="table">9 - 18</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table">Yellow</p></td>
+<td align="left" valign="top"><p class="table">9 - 18</p></td>
+<td align="left" valign="top"><p class="table">4 - 9</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table">Light green</p></td>
+<td align="left" valign="top"><p class="table">1.5 - 9</p></td>
+<td align="left" valign="top"><p class="table">1.5 - 4</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table">Dark green</p></td>
+<td align="left" valign="top"><p class="table">< 1.5</p></td>
+<td align="left" valign="top"><p class="table">< 1.5</p></td>
+</tr>
+</tbody>
+</table>
+</div>
+<div class="paragraph"><p>The profile also includes depth readings for the peaks and troughs in the graph.
+Thus you should see the depth of the deepest point and other peaks. Mean depth
+is marked with a horizontal red line.</p></div>
+<div class="paragraph"><p>The <strong>air consumption</strong> graph displays the tank pressure and its change during the
+dive. The air consumption takes depth into account so that even when manually
+entering the start and end pressures the graph is not a straight line.
+Similarly to the depth graph the tank pressure gives you information about the
+momentary SAC rate (Surface Air Consumption – often also called RMV – Respiratory
+Minute Volume) when using an air integrated dive computer. Here the colour
+coding is not relative to some absolute values but relative to the average
+normalised air consumption during the dive. So areas that are red or orange indicate
+times of increased normalized air consumption while dark green reflects times
+when the diver was using less gas than average. The colour coding is obviously
+only possible when a tank sensor is connected and tank pressure readings during
+the dive are available.</p></div>
+<div class="paragraph"><p><strong>Water temperature</strong> is displayed with its own blue line with temperature values
+placed adjacent to significant changes.</p></div>
+<div class="paragraph"><p>It is possible to <strong>zoom</strong> into the profile graph. This is done either by using
+the scroll wheel / scroll gesture of your mouse or trackpad. By default
+<em>Subsurface</em> always shows a profile area large enough for at least 30 minutes and 30m
+ (100ft) – this way short or shallow dives are intuitively recognizable; something
+that free divers clearly won’t care about.</p></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/MeasuringBar.png" alt="FIGURE: Measuring Bar" />
+</div>
+</div>
+<div class="paragraph"><p>Measurements of <strong>depth differences</strong> can be achieved by using the button with
+two vertical bars at the right of the dive profile panel (see above figure,
+bottom right). Drag the red dots to the two points on the dive profile which
+you would like to measure. Information is given along the line connecting the
+two red dots.</p></div>
+<div class="paragraph"><p>The dive profile can include further information that is typically more
+interesting for tec divers. Enabling these is described in the section entitled
+Setting up Preferences. Basically you can include graphs of the <strong>partial pressures</strong>
+of O2, N2, and He during the dive as well as a calculated and dive computer
+reported deco ceilings (only visible for deep, long, or repetitive dives). The
+partial pressure graphs are added below the profile data, the calculated ceiling
+is shown as a green overlay on top of the dive profile. Above the profile the
+currently used gradient factors are shown (e.g. GF 35/75). Please note that
+these are NOT the gradient factors in use by the dive computer in question,
+but the gradient factors used by <em>Subsurface</em> to calculate deco obligations
+during the dive.</p></div>
+<div class="paragraph"><p>The graph can also include the dive computer reported <strong>ceiling</strong> (or more
+precisely, the first deco stop that the dive computer recorded – note that not
+all dive computers record this information and make it available for download;
+for example all of the Suunto dive computers fail to make this very useful data
+available to divelog software). Because of the differences in used algorithms
+and amount of data available (and factors taken into consideration) at the time
+of the calculation it is unlikely that both of these are the same; this can be
+true even if the same algorithm and <em>gradient factors</em> (see below) are used.
+It is also quite common that <em>Subsurface</em> calculates a ceiling for
+non-decompression dives when the dive computer stayed in non-deco mode during
+the whole dive (represented by the <span class="green">dark green</span> section in the profile
+at the beginning of this section). This is caused by the fact that <em>Subsurface’s</em>
+calculations describe the deco obligation at that point in time during a dive,
+while dive computers usually take the upcoming ascent into account. During the
+ascent some excess Nitrogen (and possibly Helium) are already breathed off so even
+though the diver technically encountered a ceiling at depth, the dive still does
+not require an explicit deco stop. This feature allows dive computers to offer
+longer non-stop bottom time.</p></div>
+<div class="paragraph"><p>For a more detailed explanation of <em>gradient factors</em>, use the following links:</p></div>
+<div class="ulist"><ul>
+<li>
+<p>
+<a href="http://www.tek-dive.com/portal/upload/M-Values.pdf">Understanding M-values, by Erik Baker, 1988, <em>Immersed</em> Vol. 3, No. 3.</a>
+</p>
+</li>
+<li>
+<p>
+<a href="http://www.rebreatherworld.com/general-and-new-to-rebreather-articles/5037-gradient-factors-for-dummies.html">Gradient factors for dummies, by Kevin Watts</a>
+</p>
+</li>
+</ul></div>
+</div>
+<div class="sect2">
+<h3 id="_the_dive_profile_context_menu">4.4. The Dive Profile context menu</h3>
+<div class="paragraph"><p>The context menu for the Dive Profile is accessed by right-clicking while the
+mouse cursor is over the Dive Profile panel. The menu allows the creation of
+Bookmarks or Gas Change Event markers other than the ones that might have been
+imported from a Dive Computer. Markers are placed against the depth profile line
+and with the time of the event set by where the mouse cursor was when the right
+mouse button was initially clicked to bring up the menu. Gas Change events
+open a further selection of which gas is being switched to, the list based on
+the available gases defined in the Equipment Tab. By right-clicking while over
+an existing marker, the menu extends adding options to allow deletion of the
+marker or to allow all markers of that type to be hidden. Hidden events can be
+restored to view by selecteing Unhide all events from the context menu.</p></div>
+</div>
+<div class="sect2">
+<h3 id="_the_strong_information_box_strong">4.5. The <strong>Information Box</strong></h3>
+<div class="paragraph"><p>The Information box displays a large range of information pertaining to the dive
+profile. Normally the Information Box is located to the top left of the <strong>Dive
+Profile</strong> panel. If the mouse points outside of the <strong>Dive Profile</strong> panel, then
+only the top line of the Information Box is visible (see left-hand part of
+figure (A) below). The Information Box can be moved around in the <strong>Dive Profile</strong>
+panel by click-dragging it with the mouse so that it is not obstructing
+important detail. The position of the Information Box is saved and used again
+during subsequent dive analyses.</p></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/InfoBox2.jpg" alt="Figure: Information Box" />
+</div>
+</div>
+<div class="paragraph"><p>The moment the mouse points inside the <strong>Dive Profile</strong> panel, it expands and
+shows many data items. In this situation, the data reflect the time point along
+the dive profile indicated by the mouse (see right-hand part of figure (B) above
+where the Information Box reflects the situation at the position of the cursor
+[arrow] in that image). Therefore, moving the cursor in the horizontal
+direction allows the Information Box to show information for any point along the
+dive profile.
+In this mode, the Information Box gives extensive statistics about depth, gas
+and ceiling characteristics of the particular dive. These include: Time period
+into the dive (indicated by a @), depth, cylinder pressure (P), temperature,
+ascent/descent rate, surface air consumption (SAC), oxygen partial pressure,
+maximum operating depth, effective air depth (EAD), effective narcotic depth
+(END), equivalent air density depth (EADD), decompression requirements at that
+instant in time (Deco), time to surface (TTS), the calculated ceiling, as well
+as the calculated ceiling for several Bühlmann tissue compartments.</p></div>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_organising_the_logbook_manipulating_groups_of_dives">5. Organising the logbook (Manipulating groups of dives)</h2>
+<div class="sectionbody">
+<div class="sect2">
+<h3 id="_the_dive_list_context_menu">5.1. The Dive List context menu</h3>
+<div class="paragraph"><p>Many actions within <em>Subsurface</em> are dependent on a context menu that is used
+mostly to manipulate groups of dives. The context menu is found by selecting
+a dive or a group of dives and then right-clicking.</p></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/ContextMenu.png" alt="Figure: Context Menu" />
+</div>
+</div>
+<div class="paragraph"><p>The context menu is used in many manipulations described below.</p></div>
+</div>
+<div class="sect2">
+<h3 id="S_Renumber">5.2. Renumbering the dives</h3>
+<div class="paragraph"><p>Dives are normally numbered incrementally from non-recent dives (low sequence
+numbers) to recent dives (having the highest sequence numbers). The numbering
+of the dives is not always consistent. For instance, when non-recent dives are
+added to the dive list the numbering does not automatically follow on because
+of the dives that are more recent in date/time than the newly-added dive that
+has an older date/time. Therefore you sometimes may need to renumber the dives.
+This is performed by selecting (from the Main Menu) <em>Log → Renumber</em>. You are
+given a choice with respect to the lowest sequence number to be used.
+Completing this operation results in new sequence numbers (based on date/time)
+for the dives in the <strong>Dive List</strong> panel.</p></div>
+</div>
+<div class="sect2">
+<h3 id="S_Group">5.3. Grouping dives into trips and manipulating trips</h3>
+<div class="paragraph"><p>If you dive regularly, the dive list can rapidly become very long. <em>Subsurface</em>
+can group dives into <em>trips</em>. It performs this by grouping dives that have
+date/times that are not separated in time by more than two days, thus creating
+a single heading for each diving trip represented in the dive log. Below is an
+ungrouped dive list (A, on the left) as well as a grouped dive list with
+several trips (B, on the right):</p></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/Group2.jpg" alt="Figure: Grouping dives" />
+</div>
+</div>
+<div class="paragraph"><p>Grouping into trips allows a rapid way of accessing individual dives without
+having to scan long lists of dives. In order to group the dives in a dive list,
+(from the Main Menu) select <em>Log → Autogroup</em>. The <strong>Dive List</strong> panel now shows
+only the titles for the trips.</p></div>
+<div class="sect3">
+<h4 id="_viewing_the_dives_during_a_particular_trip">5.3.1. Viewing the dives during a particular trip</h4>
+<div class="paragraph"><p>Once when the dives have been grouped into trips, you can expand one or more
+trips by clicking the arrow-head on the left of each trip title. This expands
+the selected trip, revealing the individual dives performed during the trip.</p></div>
+</div>
+<div class="sect3">
+<h4 id="_editing_the_title_and_associated_information_for_a_particular_trip">5.3.2. Editing the title and associated information for a particular trip</h4>
+<div class="paragraph"><p>Normally, in the dive list, minimal information is included in the trip title.
+You can add much more information about a trip by selecting its trip title from
+the dive list. This shows a <strong>Trip Notes</strong> tab in the <strong>Dive Notes</strong> panel. Here
+you can add or edit information about the date/time, the trip location and any
+other general comment about the trip as a whole (e.g. the dive company you
+dived with, the general weather during the trip). After entering this
+information, select <strong>Save</strong> from the buttons at the top right of the <strong>Trip Notes</strong>
+tab. The trip title in the <strong>Dive List</strong> panel should now reflect some of the
+edited information.</p></div>
+</div>
+<div class="sect3">
+<h4 id="_collapsing_or_expanding_dive_information_for_different_trips">5.3.3. Collapsing or expanding dive information for different trips</h4>
+<div class="paragraph"><p>If you right-click after selecting a particular trip in the dive list, the
+resulting context menu allows several possibilities to expand or collapse dives
+within trips. This includes expanding all trips, collapsing all trips and
+collapsing all trips except the selected one.</p></div>
+</div>
+<div class="sect3">
+<h4 id="_merging_dives_from_more_than_one_trip_into_a_single_trip">5.3.4. Merging dives from more than one trip into a single trip</h4>
+<div class="paragraph"><p>When you right-click on a selected trip title in the <strong>Dive List</strong> panel, the
+context menu allows the merging of trips by either merging of the selected trip
+with the trip below or with the trip above.</p></div>
+</div>
+<div class="sect3">
+<h4 id="_splitting_a_single_trip_into_more_than_one_trip">5.3.5. Splitting a single trip into more than one trip</h4>
+<div class="paragraph"><p>If a trip includes five dives, you can split this trip into two trips (trip 1:
+top 3 dives; trip 2: bottom 2 dives) by selecting and right-clicking the top
+three dives. The resulting context menu allows you to create a new trip by
+choosing the option <strong>Create new trip above</strong>. The top three dives are then grouped
+into a separate trip. See below, the selection and context menu on the left (A),
+the completed action on the right (B):</p></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/SplitDive3a.jpg" alt="FIGURE: Split a trip into 2 trips" />
+</div>
+</div>
+</div>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_manipulating_single_dives">6. Manipulating single dives</h2>
+<div class="sectionbody">
+<div class="sect2">
+<h3 id="_delete_a_dive_from_the_dive_log">6.1. Delete a dive from the dive log</h3>
+<div class="paragraph"><p>Dives can be permanently deleted from the dive log by selecting and
+right-clicking them to bring up the context menu, and then selecting <strong>Delete
+x dive</strong>. Typically this would apply to a case where you wish to delete workshop
+calibration dives of the dive computer or dives of extremely short duration.</p></div>
+</div>
+<div class="sect2">
+<h3 id="_unlink_a_dive_from_a_trip">6.2. Unlink a dive from a trip</h3>
+<div class="paragraph"><p>You can unlink dives from the trip to which they belong. Select and right-click
+the dives to bring up the context menu. Then select <strong>Remove dive(s) from trip</strong>.
+The dives that have been unlinked now appear immediately above the trip to
+which they belonged.</p></div>
+</div>
+<div class="sect2">
+<h3 id="_add_a_dive_to_the_trip_immediately_above">6.3. Add a dive to the trip immediately above</h3>
+<div class="paragraph"><p>Selected dives can be moved from the trip to which they belong and placed within
+the trip immediately above the currently active trip. Select and right-click
+the dives to bring up the context menu, then select <strong>Add dive(s) to trip
+immediately above</strong>.</p></div>
+</div>
+<div class="sect2">
+<h3 id="_shift_the_start_time_of_dive_s">6.4. Shift the start time of dive(s)</h3>
+<div class="paragraph"><p>Sometimes it is necessary to adjust the start time of a dive. This may apply to
+situations where dives are performed in different time zones or when the dive
+computer has an erroneous time. Select and right-click the dive(s) to be
+adjusted. This brings up the context menu. Select <strong>Shift times</strong>. Specify the time
+(in hours and minutes) by which the dives should be adjusted and click on the
+option indicating whether the time adjustment should be forwards or backwards.</p></div>
+</div>
+<div class="sect2">
+<h3 id="_merge_dives_into_a_single_dive">6.5. Merge dives into a single dive</h3>
+<div class="paragraph"><p>Sometimes a dive is briefly interrupted, e.g. if a diver returns to the surface
+for a few minutes, resulting in two or more dives being recorded by the dive
+computer and appearing as different dives in the <strong>Dive List</strong> panel. You can
+merge these dives onto a single dive by selecting the appropriate dives and
+right-clicking them to bring up the context menu. Then select <strong>Merge selected
+dives</strong>. It may be necessary to edit the dive information in the <strong>Dive Notes</strong>
+panelto reflect events or conditions that apply to the merged dive. The figure
+below shows the depth profile two such dives that were merged:</p></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/MergedDive.png" alt="Example: Merged dive" />
+</div>
+</div>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="S_ExportLog">7. Exporting the dive log or parts of the dive log</h2>
+<div class="sectionbody">
+<div class="paragraph"><p>A dive log can be saved in two formats:</p></div>
+<div class="ulist"><ul>
+<li>
+<p>
+<em>Subsurface</em> XML format. This is the native format used by <em>Subsurface</em>.
+</p>
+</li>
+<li>
+<p>
+Universal Dive Data format (UDDF). See <a href="http://uddf.org">http://uddf.org</a> for more information.
+UDDF is a generic format that enables communication among many dive computers
+and computer programs.
+</p>
+</li>
+</ul></div>
+<div class="paragraph"><p>In order to save the WHOLE dive log (i.e. all trips and dives), select <strong>File</strong>
+from the Main menu. To save in <em>Subsurface</em> XML format, select <em>File → Save
+as</em>. To save in UDDF format, select <em>File → Export UDDF</em>.</p></div>
+<div class="paragraph"><p>In order to save only one or more dives or one or two trips, select the
+appropriate dives or trips in the <strong>Dive List</strong> panel. Then right-click the
+selected dives to bring up the context menu. To save in <em>Subsurface</em> XML
+format, select <em>Save as</em> from the context menu. To save in UDDF format, select
+<em>Export as UDDF</em> from the context menu.</p></div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="S_PrintDivelog">8. Printing your dive log</h2>
+<div class="sectionbody">
+<div class="paragraph"><p><em>Subsurface</em> provides a simple interface to print your whole dive log or only a
+few selected dives, including dive profiles and other contextual information.</p></div>
+<div class="paragraph"><p>Before printing, two decisions are required:</p></div>
+<div class="ulist"><ul>
+<li>
+<p>
+Should the whole dive log be printed or only part of it? If only part of the
+dive log is required, then select the required dives from the <strong>Dive List</strong> panel.
+</p>
+</li>
+<li>
+<p>
+What gas partial pressure information is required on the dive profile? Select
+the appropriate information from the Main Menu: <em>File→Preferences→Graph</em>.
+</p>
+</li>
+</ul></div>
+<div class="paragraph"><p>Now you need to select the print options. To do this, select <em>File→Print</em> from
+the Main menu. The following dialogue appears (see the image on the left [A],
+below):</p></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/PrintDivelog.jpg" alt="FIGURE: Print dialogue" />
+</div>
+</div>
+<div class="paragraph"><p>Under <em>Print type</em> you need to select one of three options:</p></div>
+<div class="ulist"><ul>
+<li>
+<p>
+Print the Dive List. Do do this, select <em>Table Print</em>.
+</p>
+</li>
+<li>
+<p>
+Print the full dive records (dive profiles and all other information) at 6
+dives per printed page. To do this, select <em>6 dives per page</em>.
+</p>
+</li>
+<li>
+<p>
+Print the full dive records (dive profiles and all other information) at 2
+dives per printed page. To do this, select <em>2 dives per page</em>.
+</p>
+</li>
+</ul></div>
+<div class="paragraph"><p>Under <em>Print options</em> you need to select:</p></div>
+<div class="ulist"><ul>
+<li>
+<p>
+Printing only the dives that have been selected from the dive list prior to
+activating the print dialogue, achieved by checking the box <em>Print only
+selected dives</em>.
+</p>
+</li>
+<li>
+<p>
+Printing in colour, achieved by checking the box with <em>Print in color</em>.
+</p>
+</li>
+</ul></div>
+<div class="paragraph"><p>The <em>Ordering</em> affects the layout of the page (or part of it) for each dive.
+The dive profile could be printed at the top of each dive, with the textual
+information underneath, or it could be printed with the textual information at
+the top with the dive profile underneath. Select the appropriate option in the
+print dialogue. See the image on the right (B), above which has a layout with
+text above the dive profile.</p></div>
+<div class="paragraph"><p>You can <em>Preview</em> the printed page by selecting the <em>Preview</em> button on the
+dialogue. After preview, changes to the options in the print dialogue can be made
+to give a layout that fits personal taste.</p></div>
+<div class="paragraph"><p>Now, select the <em>Print</em> button in the dialogue. This activates the regular print
+dialogue used by your operating system, allowing you to choose a printer and
+to set its properties. Remember to set the print resolution of the printer to
+an appropriate value by changing the printer properties. Finally, print the
+dives. Above on the right (B) is an example of the output for one particular
+dive.</p></div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="S_Preferences">9. Setting your <strong>Preferences</strong> for <em>Subsurface</em></h2>
+<div class="sectionbody">
+<div class="paragraph"><p>There are several settings within <em>Subsurface</em> that the user can specify. These
+are found when selecting <em>File→Preferences</em>. The settings are performed in
+four groups: <strong>Defaults</strong>, <strong>Units</strong>, <strong>Graph</strong> and <strong>Language</strong>. All four sections
+operate on the same principles: specify the settings you wish to change, then
+save these using the <strong>Apply</strong> button. After applying all the new settings you can
+leave the settings panel by selecting <strong>OK</strong>.</p></div>
+<div class="sect2">
+<h3 id="_defaults">9.1. Defaults</h3>
+<div class="paragraph"><p>There are four settings in the <strong>Defaults</strong> panel:</p></div>
+<div class="ulist"><ul>
+<li>
+<p>
+<strong>Lists and tables</strong>: Here you can specify the font type and font size of the
+Dive Table panel. By decreasing the font size of the Dive table,
+you can see more dives on a screen.
+</p>
+</li>
+<li>
+<p>
+<strong>Dives</strong>: Here you need to specify the directory and file name of your
+electronic dive log book. This is a file with filename extension .xml. When
+launched, <em>Subsurface</em> will then automatically load the dive log book specified.
+</p>
+</li>
+<li>
+<p>
+<strong>Display invalid</strong>: Dives can be marked as invalid (when you want to hide
+dives that you don’t consider valid dives, e.g. pool dives, but still want to
+keep them in the dive log). This controls whether those dives are displayed in
+the dive list.
+</p>
+</li>
+<li>
+<p>
+<strong>Use Default cylinder</strong>: Here you can specify the default cylinder listed in
+the <strong>Equipment</strong> tab of the <strong>Dive Notes</strong> panel.
+</p>
+</li>
+</ul></div>
+</div>
+<div class="sect2">
+<h3 id="_units">9.2. Units</h3>
+<div class="paragraph"><p>Here you can choose between metric and imperial measures of depth, pressure,
+volume, temperature and mass. By selecting the Metric or Imperial radio button
+at the top, you can specify that all units are in the chosen measurement system
+. Alternatively, if you select the <strong>Personalise</strong> radio button, you can select
+a mixture with some measurements being metric while others are in imperial
+measures.</p></div>
+</div>
+<div class="sect2">
+<h3 id="_graph">9.3. Graph</h3>
+<div class="paragraph"><p>This panel allows two type of selections:</p></div>
+<div class="ulist"><ul>
+<li>
+<p>
+<strong>Show</strong>: Here you specify the amount of information that is shown as part of
+the dive profile:
+</p>
+<div class="ulist"><ul>
+<li>
+<p>
+Gas pressure graphs: <em>Subsurface</em> can display the pressures of the gases
+with which you dive. If you dive breathing air, then the only important gas is
+nitrogen. You can instruct <em>Subsurface</em> to plot the nitrogen pressure during
+your dive. If you dive breathing nitrox, then you can select a graph of both the
+nitrogen and oxygen pressures during your dive. If you dive with trimix or
+heliox, you can select the display of the helium pressure as well. For each of
+these graphs you can specify a threshold value on the right-hand side of the
+panel. If any of the graphs go above this threshold level, the graph is
+highlighted in red, indication that the threshold value has been exceeded (see
+figure below).
+</p>
+</li>
+<li>
+<p>
+Ceiling: Ascent ceilings arise when a direct ascent to the surface exposes
+the diver to decompression sickness (DCS) and it is necessary to either ascend
+slower or to perform decompression stop(s) before ascending to the surface.
+<em>Subsurface</em> can indicate these ceilings above which the diver should not ascend
+at a particular point in time (see the green-shaded areas in the figure in the
+section on <a href="#S_DiveProfile">Dive Profiles</a>) and in the figure below:
+</p>
+<div class="ulist"><ul>
+<li>
+<p>
+If you check <strong>Calculated ceiling</strong>, then a ceiling is shown if it exists for
+a particular dive (<strong>A</strong> in figure below)
+</p>
+</li>
+<li>
+<p>
+If you check <strong>show all tissues</strong>, the ceiling is shown for the tissue
+compartments following the Bühlmann model (<strong>B</strong> in figure below).
+</p>
+</li>
+<li>
+<p>
+If you check <strong>3m increments</strong>, then the ceiling is indicated in 3m-increments
+(<strong>C</strong> in figure below).
+</p>
+</li>
+<li>
+<p>
+If the dive computer itself calculates a ceiling and makes it available to
+<em>Subsurface</em> during upload of dives, this can be
+shown by checking <strong>Dive computer reported ceiling</strong> and it can be drawn in red by
+checking <strong>Draw ceiling red</strong>.
+</p>
+</li>
+</ul></div>
+</li>
+<li>
+<p>
+If a <em>Maximum operating depth (MOD)</em> or an <em>Equivalent air depth (EAD)</em>
+applies to a dive profile, these can be shown by checking the appropriate boxes.
+</p>
+</li>
+<li>
+<p>
+If a <em>Maximum partial pressure of oxygen (maxPPO2)</em> applies to dives, then
+this can be specified in the appropriate text box. In addition, if a
+<em>no-decompression limit (NDL)</em> is to be shown in the <strong>info</strong> box, then check the
+appropriate box.
+</p>
+</li>
+</ul></div>
+</li>
+</ul></div>
+<div class="imageblock" style="text-align:center;">
+<div class="content">
+<img src="images/Ceilings.png" alt="Figure: Ceiling with 3m resolution" />
+</div>
+</div>
+<div class="ulist"><ul>
+<li>
+<p>
+<strong>Misc</strong>: Here you can set the <em>gradient factors</em> used while diving. GF_Low is
+the gradient factor at deep depths and GF_High is used just below the surface.
+At intermediate depths gradient factors between GF_Low and GF_High are used.
+Gradient factors add conservatism to the nitrogen exposure during a dive, in a
+similar way that many dive computers have a conservatism setting. The lower
+the value of a gradient factor, the more conservative the calculations are with
+respect to nitrogen loading and the deeper the ascent ceilings are. Gradient
+factors of 25/60 are considered conservative and values of 60/90 are considered
+harsh. Checking <strong>GFLow at max depth</strong> box causes GF_Low to be used at the
+deepest depth of a dive. For more information see:
+</p>
+<div class="ulist"><ul>
+<li>
+<p>
+<a href="http://www.tek-dive.com/portal/upload/M-Values.pdf">Understanding M-values by Erik Baker, , <em>Immersed</em> Vol. 3, No. 3.</a>
+</p>
+</li>
+<li>
+<p>
+<a href="http://www.rebreatherworld.com/general-and-new-to-rebreather-articles/5037-gradient-factors-for-dummies.html">Gradient factors for dummies, by Kevin
+ Watts</a>
+</p>
+</li>
+</ul></div>
+</li>
+</ul></div>
+</div>
+<div class="sect2">
+<h3 id="_languages">9.4. Languages</h3>
+<div class="paragraph"><p>A checkbox allows one to use the <em>System Default</em> language which in most cases
+will be the correct setting; with this <em>Subsurface</em> simply runs in the same
+language / country settings as the underlying OS. If this is for some reason
+undesirable you can uncheck this checkbox and pick a language / country
+combination from the list of included localizations.</p></div>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_description_of_the_subsurface_main_menu_items">10. Description of the Subsurface Main Menu items</h2>
+<div class="sectionbody">
+<div class="paragraph"><p>This section describes the functions and operation of the items in the Main Menu
+of Subsurface. Several of the items below are links to sections of this manual
+dealing with the appropriate operations.</p></div>
+<div class="sect2">
+<h3 id="_file">10.1. File</h3>
+<div class="ulist"><ul>
+<li>
+<p>
+<a href="#S_NewLogbook"><em>New Logbook</em></a> - Close the currently open dive logbook and
+clear all dive information.
+</p>
+</li>
+<li>
+<p>
+<em>Open logbook</em> - This opens the file manager in order to select a dive
+logbook to open.
+</p>
+</li>
+<li>
+<p>
+<em>Save</em> - Save the dive logbook that is currently open.
+</p>
+</li>
+<li>
+<p>
+<em>Save as</em>: - Save the current logbook or the currently selected dives within
+the present logbook under a different filename.
+</p>
+</li>
+<li>
+<p>
+<em>Close</em> - Close the dive logbook that is currently open.
+</p>
+</li>
+<li>
+<p>
+<a href="#S_ExportLog"><em>Export UDDF</em></a> - Export the currently open dive logbook (or
+the selected dives in the logbook) in UDDF format.
+</p>
+</li>
+<li>
+<p>
+<a href="#S_PrintDivelog"><em>Print</em></a> - Print the currently open logbook.
+</p>
+</li>
+<li>
+<p>
+<a href="#S_Preferences"><em>Preferences</em></a> - Set the <em>Subsurface</em> preferences.
+</p>
+</li>
+<li>
+<p>
+<em>Quit</em> - Quit <em>Subsurface</em>.
+</p>
+</li>
+</ul></div>
+</div>
+<div class="sect2">
+<h3 id="_import">10.2. Import</h3>
+<div class="ulist"><ul>
+<li>
+<p>
+<a href="#S_ImportDiveComputer"><em>Import from dive computer</em></a> - Import dive information
+from a dive computer.
+</p>
+</li>
+<li>
+<p>
+<a href="#S_ImportingUDDF"><em>Import Files</em></a> - Import dive information from a file in
+UDDF or in another <em>Subsurface</em>-compatible format.
+</p>
+</li>
+<li>
+<p>
+<em>Import CSV</em> - Import dive information from a data file in CSV format.
+</p>
+</li>
+<li>
+<p>
+<a href="#S_Companion"><em>Import GPS data from Subsurface Service</em></a> - Load GPS
+coordinates from the <em>Subsurface</em> mobile phone app.
+</p>
+</li>
+<li>
+<p>
+<a href="#S_ImportingDivelogsDe"><em>Import from Divelogs.de</em></a> - Import dive information
+from <em>www.Divelogs.de</em>.
+</p>
+</li>
+</ul></div>
+</div>
+<div class="sect2">
+<h3 id="_log">10.3. Log</h3>
+<div class="ulist"><ul>
+<li>
+<p>
+<a href="#S_EnterData"><em>Add Dive</em></a> - Manually add a new dive to the <strong>Dive List</strong> panel.
+</p>
+</li>
+<li>
+<p>
+<a href="#S_Renumber"><em>Renumber</em></a> - Renumber the dives listed in the <strong>Dive List</strong> panel.
+</p>
+</li>
+<li>
+<p>
+<a href="#S_Group"><em>Auto Group</em></a> - Group the dives in the <strong>Dive List</strong> panel into dive
+trips.
+</p>
+</li>
+<li>
+<p>
+<em>Edit Device Names</em> - Edit the names of dive computers.
+</p>
+</li>
+</ul></div>
+</div>
+<div class="sect2">
+<h3 id="_view">10.4. View</h3>
+<div class="ulist"><ul>
+<li>
+<p>
+<a href="#S_ViewPanels"><em>All</em></a> - View the four main <em>Subsurface</em> panels
+simmultaneously.
+</p>
+</li>
+<li>
+<p>
+<a href="#S_ViewPanels"><em>Dive List</em></a> - View only the <strong>Dive List</strong> panel.
+</p>
+</li>
+<li>
+<p>
+<a href="#S_ViewPanels"><em>Profile</em></a> - View only the <strong>Dive Profile</strong> panel.
+</p>
+</li>
+<li>
+<p>
+<a href="#S_ViewPanels"><em>Info</em></a> - View only the <strong>Dive Notes</strong> panel.
+</p>
+</li>
+<li>
+<p>
+<a href="#S_ViewPanels"><em>Globe</em></a> - View only the <strong>World Map</strong> panel.
+</p>
+</li>
+<li>
+<p>
+<em>Yearly Statistics</em> - Display summary statistics about dives during the last
+year.
+</p>
+</li>
+<li>
+<p>
+<em>Prev DC</em> - Switch to next dive computer.
+</p>
+</li>
+<li>
+<p>
+<em>Next DC</em> - Switch to previous dive computer.
+</p>
+</li>
+</ul></div>
+</div>
+<div class="sect2">
+<h3 id="_filter">10.5. Filter</h3>
+<div class="ulist"><ul>
+<li>
+<p>
+<em>Select Events</em> - This option is not implemented yet.
+</p>
+</li>
+</ul></div>
+</div>
+<div class="sect2">
+<h3 id="_help">10.6. Help</h3>
+<div class="ulist"><ul>
+<li>
+<p>
+<em>About Subsurface</em> - Show a panel with the version number of <em>Subsurface</em> as
+well as licensing information.
+</p>
+</li>
+<li>
+<p>
+<em>User Manual</em> - Open a window showing this user manual.
+</p>
+</li>
+</ul></div>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_appendix_a_operating_system_specific_information_for_importing_dive_information_from_a_dive_computer">11. APPENDIX A: Operating system specific information for importing dive information from a dive computer.</h2>
+<div class="sectionbody">
+<div class="sect2">
+<h3 id="_make_sure_that_your_os_has_the_required_drivers_installed">11.1. Make sure that your OS has the required drivers installed</h3>
+<div class="admonitionblock">
+<table><tr>
+<td class="icon">
+<img src="images/icons/drivers.jpg" alt="Note" />
+</td>
+<td class="content">The operating system of your desktop computer needs the appropriate drivers in
+order to communicate with your dive computer in whichever way your dive
+computer prefers (e.g. bluetooth, USB, infrared).</td>
+</tr></table>
+</div>
+<div class="ulist"><ul>
+<li>
+<p>
+On Linux this means you need to have the correct kernel
+ module loaded. Most distributions will do this automatically
+ for you. Make sure you have read/write permissions to that
+ port. On Ubuntu that could mean you should run the command
+ following command in a terminal window:
+</p>
+<div class="literalblock">
+<div class="content">
+<pre><code>+sudo adduser+ [your_username] +dialout+</code></pre>
+</div></div>
+</li>
+<li>
+<p>
+On Windows, the OS should offer to download the correct
+ driver once you connect your dive computer to the USB port.
+</p>
+</li>
+<li>
+<p>
+On a Mac you at times have to manually hunt for the correct
+ driver. For example the correct driver for the Mares Puck
+ devices can be found as Mac_OSX_VCP_Driver.zip at
+ <a href="http://www.silabs.com/support/pages/support.aspx?ProductFamily=USB+Bridges">http://www.silabs.com/support/pages/support.aspx?ProductFamily=USB+Bridges</a>
+ <span class="red">(see further hints in <a href="#AppendixB">Appendix B</a>)</span>
+</p>
+</li>
+</ul></div>
+</div>
+<div class="sect2">
+<h3 id="S_HowFindDeviceName">11.2. How to Find the Device Name for USB devices</h3>
+<div class="admonitionblock">
+<table><tr>
+<td class="icon">
+<img src="images/icons/usb.jpg" alt="Note" />
+</td>
+<td class="content">When you connect your dive computer by using a USB connector, usually
+<em>Subsurface</em> will either propose a drop down list that contains the
+correct device name (or mount point for the Uemis Zurich), or it will
+disable the device select drop down if no device name is needed at
+all. In the rare cases where this doesn’t work here are some
+instructions on ways to find out what your device name is:</td>
+</tr></table>
+</div>
+<div class="paragraph"><div class="title">On Windows:</div><p>Simply try COM1, COM2, etc. The drop down list should contain all connected COM
+devices.</p></div>
+<div class="paragraph"><div class="title">On MacOS:</div><p>The drop down box should find all connected dive computers.</p></div>
+<div class="paragraph"><div class="title">On Linux:</div><p>Try the following:</p></div>
+<div class="ulist"><ul>
+<li>
+<p>
+Disconnect your USB cable of your dive computer
+</p>
+</li>
+<li>
+<p>
+Open a terminal
+</p>
+</li>
+<li>
+<p>
+Type the command: <em>dmesg</em> and press enter
+</p>
+</li>
+<li>
+<p>
+Plug in your USB cable of your dive computer
+</p>
+</li>
+<li>
+<p>
+Type the command: <em>dmesg</em> and press enter
+</p>
+</li>
+</ul></div>
+<div class="paragraph"><p>Within your terminal you should see a message similar to this one:</p></div>
+<div class="literalblock">
+<div class="content">
+<pre><code>usb 2-1.1: new full speed USB device number 14 using ehci_hcd
+usbcore: registered new interface driver usbserial
+USB Serial support registered for generic
+usbcore: registered new interface driver usbserial_generic
+usbserial: USB Serial Driver core
+USB Serial support registered for FTDI USB Serial Device
+ftdi_sio 2-1.1:1.0: FTDI USB Serial Device converter detected
+usb 2-1.1: Detected FT232BM
+usb 2-1.1: Number of endpoints 2
+usb 2-1.1: Endpoint 1 MaxPacketSize 64
+usb 2-1.1: Endpoint 2 MaxPacketSize 64
+usb 2-1.1: Setting MaxPacketSize 64
+usb 2-1.1: FTDI USB Serial Device converter now attached to ttyUSB3
+usbcore: registered new interface driver ftdi_sio
+ftdi_sio: v1.6.0:USB FTDI Serial Converters Driver</code></pre>
+</div></div>
+<div class="paragraph"><p>You see that in the third line from the bottom, the USB adapter is
+detected and is connected to <code>ttyUSB3</code>. Now you use this information in
+the import settings as <code>/dev/ttyUSB3</code>. Your dive computer interface is
+connected and you should be able to import your dives.</p></div>
+</div>
+<div class="sect2">
+<h3 id="S_HowFindBluetoothDeviceName">11.3. Setting up bluetooth enabled devices</h3>
+<div class="admonitionblock">
+<table><tr>
+<td class="icon">
+<img src="images/icons/bluetooth.jpg" alt="Note" />
+</td>
+<td class="content">For dive computers communicating through bluetooth like the Heinrichs
+Weikamp Frog or the Shearwater Predator and Petrel there is a
+different procedure to get the devices name to communicate with
+<em>Subsurface</em>. In general it consists of these steps:</td>
+</tr></table>
+</div>
+<div class="ulist"><ul>
+<li>
+<p>
+enable bluetooth on your computer
+</p>
+</li>
+<li>
+<p>
+pairing the device
+</p>
+</li>
+</ul></div>
+<div class="paragraph"><p>Do not forget to set your divecomputer in Bluetooth or upload mode before
+Paring and Downloading logs. If you use a Shearwater Predator/Petrel just select
+<em>Dive Log → Upload Log</em> and wait until you see the <em>Wait PC</em> message.</p></div>
+<div class="paragraph"><div class="title">On Windows:</div><p>Bluetooth is most likely already enabled. For pairing the device choose
+Control Panel→Bluetooth Devices→Add Wireless Device
+This should bring up a dialog showing your dive computer (in Bluetooth mode) and
+allowing to pair it. For bluetooth pairing of your dive computer refer to the
+manufacturer’s user guide. The dive computer should then show up in the list of
+Bluetooth devices and you may then right click on it and choose Properties→COM
+Ports to identify the port used for your dive computer. If there are several
+ports listed, use the one saying "Outgoing" instead of "Incoming".</p></div>
+<div class="paragraph"><p>For downloading to <em>Subsurface</em>, the drop down list should contain this COM
+port already. If not, enter it manually.</p></div>
+<div class="paragraph"><p>Note: If you have issues downloading from your dive computer in other software
+afterwards try to remove the pairing with your dive computer.</p></div>
+<div class="paragraph"><div class="title">On MacOS:</div><p>Click on the Bluetooth symbol in the menu bar and select <em>Set up
+Bluetooth Device…</em>. Make sure that your dive computer is in upload
+mode; it should then show up in the list of devices. Select it and go
+through the pairing process. This step should only be needed once for
+initial setup.</p></div>
+<div class="paragraph"><p>Once the pairing is completed the correct device will be shown in the
+<em>Device or Mount Point</em> drop down in the <em>Subsurface</em> <strong>Import</strong> dialog.</p></div>
+<div class="paragraph"><div class="title">On Linux</div><p>Ensure sure bluetooth is enabled on the <em>Subsurface</em> computer.
+On most common distributions this should be true out of the box. If not then
+depending on your system, running <code>initd</code> or <code>systemd</code>. This might be different
+and also involve loading modules specific to your hardware. In case your system is
+running <code>systemd</code>, manually run <code>sudo systemctl start bluetooth.service</code> to enable
+it, in case of <code>initd</code>, run something like <code>sudo rc.config start bluetoothd</code> or
+<code>sudo /etc/init.d/bluetooth start</code>.</p></div>
+<div class="paragraph"><p>Pairing should be straight forward. Using Gnome3 for instance will show a
+bluetooth icon in the upper right corner of your desktop where you select <em>Set
+up New Device</em>. This should show you a dialog where you are able to select your
+dive computer (in bluetooth mode) and pair it. If you have issues with PIN
+setting try manually setting <em>0000</em>.</p></div>
+<div class="paragraph"><p>You may also use a manual approach by using such commands:</p></div>
+<div class="ulist"><ul>
+<li>
+<p>
+<code>sudo hciconfig</code> - shows the bluetooth devices available on your
+computer (not dive computer), most likely you will see a hci0, if not
+try <em>sudo hcitool -a</em> to see inactive devices and try to run <em>sudo
+hciconfig hci0 up</em> to bring them up
+</p>
+</li>
+<li>
+<p>
+<code>sudo hcitool scanning</code>- use this to get a list of bluetooth enabled
+client devices, watch out for your dive computer and remember the MAC
+address shown there
+</p>
+</li>
+<li>
+<p>
+<code>sudo bluez-simple-agent hci0 10:00:E8:C4:BE:C4</code> - this will pair
+your dive computer with the bluetooth stack of your computer, copy/paste
+the MAC address from the output of <em>hcitool scanning</em>
+</p>
+</li>
+</ul></div>
+<div class="paragraph"><p>Unfortunately on Linux binding to a communication device has to be done
+manually by running:</p></div>
+<div class="ulist"><ul>
+<li>
+<p>
+<code>sudo rfcomm bind /dev/rfcomm0 10:00:E8:C4:BE:C4</code> - bind the dive
+computer to a communication device in your computer, in case rfcomm is
+already taken just use rfcomm1 or up, please copy/paste the MAC address
+from the output of <em>hcitool scanning</em>, the MAC shown in here will not
+work for you.
+</p>
+</li>
+</ul></div>
+<div class="paragraph"><p>For downloading dives in Subsurface you have then to specify <code>/dev/rfcomm0</code>
+as device name to use.</p></div>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_appendix_b_dive_computer_specific_information_for_importing_dive_information">12. APPENDIX B: Dive Computer specific information for importing dive information.</h2>
+<div class="sectionbody">
+<div class="sect2">
+<h3 id="S_ImportUemis">12.1. Import from a Uemis Zurich</h3>
+<div class="admonitionblock">
+<table><tr>
+<td class="icon">
+<img src="images/icons/iumis.jpg" alt="Note" />
+</td>
+<td class="content">Things are very similar to a normal USB-connected dive computer when downloadin
+g dives from a Uemis Zurich
+dive computer (which certainly is one of the ones that DO recharge when
+connected to the USB port). The main difference is that you don’t enter a
+device name, but instead the location where the UEMISSDA file system is
+mounted once you connect the dive computer. On Windows this is a drive letter (
+often <em>E:</em> or <em>F:</em>), on a Mac this is
+<em>/Volumes/UEMISSDA</em> and on Linux systems this differs depending on the
+distribution that you use. On Fedora it usually is
+<em>/var/run/media/<your_username>/UEMISSDA</em>. In all cases <em>Subsurface</em>
+should suggest the correct location in the drop down list.</td>
+</tr></table>
+</div>
+<div class="paragraph"><p>Once you have selected this as device name you can download the
+dives from the Uemis Zurich. One technical issue with the Uemis Zurich
+download implementation (this is a firmware limitation, not a
+<em>Subsurface</em> issue) is that you cannot download more than about 40-50
+dives without running out of memory on the SDA. This will usually only
+happen the very first time you download dives from the Uemis Zurich -
+normally when downloading at the end of a day or even after a dive
+trip, the capacity is sufficient. If <em>Subsurface</em> displays an error
+that the dive computer ran out of space the solution is straight
+forward. Disconnect the SDA, turn it off and on again, and reconnect
+it. You can now retry (or start a new download session) and the
+download will continue where it stopped the last time you tried. You
+may have to do this more than once, depending on how many dives you
+have stored on your dive computer.</p></div>
+<div class="paragraph"><p>At this point <em>Subsurface</em> downloads most of the information that is
+stored on the SDA, including information about dive spots and
+equipment. Buddy information is not yet downloaded.</p></div>
+</div>
+<div class="sect2">
+<h3 id="S_ImportingDR5">12.2. Importing dives from Heinrichs Weikamp DR5</h3>
+<div class="admonitionblock">
+<table><tr>
+<td class="icon">
+<img src="images/icons/HW_DR5.jpg" alt="Note" />
+</td>
+<td class="content">When mounted as a USB drive the Heinrichs Weikamp DR5 saves a single UDDF file
+for every dive.
+Mark all the dives you’d like to import or open.
+Note: The DR5 does not seem to store gradient factors nor deco information, so
+for <em>Subsurface</em> it is not possible to display them. Adjust the gradient
+factors in the Tec Settings in <em>Subsurface</em> to generate a deco overlay in the _
+Subsurface_ <strong>Dive Profile</strong> panel
+to get deco displayed but please note that the deco calculated by <em>Subsurface</em>
+will most likely differ from the one displayed on the DR5.</td>
+</tr></table>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_import_from_shearwater_predator_using_bluetooth">12.3. Import from Shearwater Predator using bluetooth</h3>
+<div class="admonitionblock">
+<table><tr>
+<td class="icon">
+<img src="images/icons/predator.jpg" alt="Note" />
+</td>
+<td class="content">Using a Shearwater Predator you may be able to pair Bluetooth but then encounter
+issues when downloading, showing errors like <em>Slip RX: unexp. SLIP END</em> on the Predator.
+This might also be seen, when using other dive log software and operating
+systems than Linux. We have no detailed idea about the source and how to fix
+this, but it is reported to be solved sometimes by one of these steps:</td>
+</tr></table>
+</div>
+<div class="ulist"><ul>
+<li>
+<p>
+use the bluetooth dongle which came with the Shearwater Predator instead of
+ the built-in one of your computer
+</p>
+</li>
+<li>
+<p>
+switch to different bluetooth drivers for your hardware
+</p>
+</li>
+<li>
+<p>
+switch off WiFi while using Bluetooth
+</p>
+</li>
+</ul></div>
+</div>
+</div>
+</div>
+</div>
+<div id="footnotes"><hr /></div>
+<div id="footer">
+<div id="footer-text">
+Last updated 2013-12-19 07:22:47 PST
+</div>
+</div>
+</body>
+</html>
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