Git commit 2865e9325e73ff5ad408f197eb4576c583c2cf6f by Gilles Caulier, on 
behalf of Wolfgang Scheffner.
Committed on 09/03/2017 at 09:17.
Pushed by cgilles into branch 'master'.

Apply patches #19, 20, 21 about geolocation editor handbook description
Note : Screenshots for this section have been alreay commited previously. Only 
docbook files changes are included in this commit.
CCBUGS: 377292

M  +4    -2    digikam/index.docbook
M  +186  -87   digikam/tool-geolocationeditor.docbook
M  +4    -0    digikam/using-mainwindow-intro.docbook
M  +5    -2    digikam/using-mainwindow-mapview.docbook
M  +19   -24   digikam/using-sidebar-maps.docbook
M  +2    -12   showfoto/index.docbook

https://commits.kde.org/digikam-doc/2865e9325e73ff5ad408f197eb4576c583c2cf6f

diff --git a/digikam/index.docbook b/digikam/index.docbook
index d0f558b..0802750 100644
--- a/digikam/index.docbook
+++ b/digikam/index.docbook
@@ -6,6 +6,8 @@
     <!ENTITY % addindex "IGNORE">
     <!ENTITY % English "INCLUDE"><!-- change language only here -->
     <!ENTITY digikam '<application>digiKam</application>'>
+    <!ENTITY digikam-app '<application>digiKam</application>'>
+    <!ENTITY showfoto '<application>Showfoto</application>'>
     <!ENTITY path ""><!-- relative path to snapshots for digikam and showfoto 
-->
 
     <!-- Introduction Chapter -->
@@ -156,7 +158,7 @@
 
     <!-- native -->
     <!ENTITY doc-tool-acquireimages               SYSTEM 
"tool-acquireimages.docbook">
-    <!ENTITY doc-tool-geolocationeditor           SYSTEM 
"tool-geolocationeditor.docbook">
+    <!ENTITY doc-tool-geolocation                 SYSTEM 
"tool-geolocationeditor.docbook">
     <!ENTITY doc-tool-presentation                SYSTEM 
"tool-presentation.docbook">
     <!ENTITY doc-tool-metadataeditor              SYSTEM 
"tool-metadataeditor.docbook">
     <!ENTITY doc-tool-panorama                    SYSTEM 
"tool-panorama.docbook">
@@ -290,7 +292,7 @@
 
     <!-- native -->
     &doc-tool-acquireimages;
-    &doc-tool-geolocationeditor;
+    &doc-tool-geolocation;
     &doc-tool-presentation;
     &doc-tool-metadataeditor;
     &doc-tool-panorama;
diff --git a/digikam/tool-geolocationeditor.docbook 
b/digikam/tool-geolocationeditor.docbook
index 2faa0ff..f7ccd25 100644
--- a/digikam/tool-geolocationeditor.docbook
+++ b/digikam/tool-geolocationeditor.docbook
@@ -1,47 +1,54 @@
-<chapter id="tool-geolocationeditor">
+<chapter id="tool-geolocation">
 <chapterinfo>
 
-<abstract>
-    <para>
-        The Geolocation Editor allows for adding and editing GPS coordinates 
of picture metadata. The geo-data is stored into the image (EXIF tags) and the 
location can be displayed in an internal or external browser map. The 
Geolocation Editor also offers a <firstterm>reverse geolocation</firstterm> 
tool.
-    </para>
-</abstract>
+    <abstract>
+        <para>
+            Geolocation means assigning, editing and using metadata which 
describe the geographic place where images or videos were taken. The source of 
these metadata can be your camera, a separate GPS receiver or other means of 
geographical information, in particular maps.
+        </para>
 
-<keywordset>
-    <keyword>GPS</keyword>
-    <keyword>Map</keyword>
+        <para>
+            Not only for professional photographers can it be interesting to 
link an image to a precise geographical location. Not everybody uses an 
airplane to overfly and scan a certain area with automatic GPS data recording. 
Environmental planners, military, police, construction bureaus, real estate 
agencies, all will have an immediate application.
+        </para>
+
+        <para>
+            But if, after some time, one has forgotten where the image was 
taken, if one loves the nice feature to open with a simple click a browser 
displaying a zoom of the area, if you like to send your image as a postcard to 
another &digikam; user (who is then able to locate your shot), or if you simply 
need the documentation aspect of it - having position data stored in a photo is 
great.
+        </para>
+
+    </abstract>
+
+    <keywordset>
+        <keyword>GPS</keyword>
+        <keyword>Map</keyword>
     </keywordset>
 </chapterinfo>
 
-<title>Geolocation Editor</title>
-
+<title>Geolocation</title>
     <para>
-        There are three tools regarding geolocation in &digikam;:
+        GPS (global positioning system) is used as a generic term throughout 
this document. It just means a location in the common spherical coordinate 
system that can be displayed on a map. The actual technical implementation that 
provides the data can be the American GPS, the Russian GLONAS, the European 
GALILEO or any other system.
     </para>
 
+    <para>
+        There are four tools regarding geolocation in &digikam-app; and two in 
&showfoto;:
         <orderedlist numeration="arabic">
 
             <listitem><para>
-
-                The <link linkend="using-mainwindow-mapview">Map View</link> 
on the Left Sidebar which is the search tool for finding images by their GPS 
data.
-
+                The Map mode of the Image Area which displays images with GPS 
data on a map depending on the selection on the Left Sidebar, &eg; the images 
in the album you selected in the Album View, the images with a certain tag 
assigned (selected in the Tag View), with a certain label and so on. This is 
only available in &digikam-app;.
             </para></listitem>
-
+    
             <listitem><para>
-
-                The Geolocation Editor we describe in this chapter and which 
is accessible via <menuchoice><shortcut><keycombo 
action="simul">&Ctrl;&Shift;<keycap>G</keycap></keycombo></shortcut><guimenu>Item</guimenu><guimenuitem>Edit
 Geolocation...</guimenuitem></menuchoice>
-
+                The Map View on the Left Sidebar of &digikam-app; which is the 
search tool for finding images by their GPS data. This is also only available 
in &digikam-app;.
             </para></listitem>
 
             <listitem><para>
+                The Geolocation Editor we describe a little bit further below 
and which is accessible via <menuchoice><shortcut><keycombo 
action="simul">&Ctrl;&Shift;<keycap>G</keycap></keycombo></shortcut><guimenu>Item</guimenu><guimenuitem>Edit
 Geolocation...</guimenuitem></menuchoice> 
(<menuchoice><guimenu>File</guimenu><guimenuitem>Edit 
Geolocation...</guimenuitem></menuchoice> in &showfoto;).
+            </para></listitem>
 
+            <listitem><para>
                 The <link linkend="using-sidebar-maps">Map</link> tab on the 
Right Sidebar which shows the location of the image on a map and is purely 
informative.
-
             </para></listitem>
 
         </orderedlist>
-    <para>
-        All three are based on the &marble; widget.
+        All four are based on the &marble; widget.
     </para>
 
     <note><para>
@@ -49,18 +56,22 @@
         <ulink url="http://www.exiv2.org";>Exiv2 library</ulink>.
     </para></note>
 
-    <para>
-        <inlinemediaobject>
-            <imageobject><imagedata fileref="tool-geolocation-editcoords.png" 
format="PNG" /></imageobject>
-        </inlinemediaobject>
-    </para>
+    <sect1 id="tool-geolocationeditor">  <title>Geolocation Editor</title>
+    
+        <para>
+            The Geolocation Editor allows for adding and editing GPS 
coordinates of picture metadata. The geo-data is stored into the image (EXIF 
tags) and the location can be displayed in an internal or external browser map. 
The Geolocation Editor also offers a <firstterm>Reverse Geocoding</firstterm> 
tool.
+        </para>
 
-    <para>
-        The <quote>Geolocation Editor</quote> provides the tools to localize 
pictures geographically in the common spherical coordinate system (used by 
GPS/Galileo). Altitude, latitude and longitude, speed, number of satellites, 
fix type and DOP are editable.
-    </para>
+        <para>
+            <inlinemediaobject>
+                <imageobject><imagedata 
fileref="&path;tool-geolocation-editcoords.png" format="PNG" /></imageobject>
+            </inlinemediaobject>
+        </para>
 
-    <sect1 id="geolocation-title">  <title>Geolocation</title>
-        
+        <para>
+            The Geolocation Editor provides the tools to localize pictures 
geographically in the common spherical coordinate system (used by GPS/Galileo). 
Altitude, latitude and longitude, speed, number of satellites, fix type and DOP 
are editable.
+        </para>
+       
         <para>
             The editor has two methods to mark the pictures with coordinates:
         </para>
@@ -122,11 +133,16 @@
                     <listitem><para>
                         The Pan-mode button lets you move the map by 
left-click and holding on it and then drag it with the mouse to where you need 
it. The cursor symbol will change to a hand.
                     </para></listitem>
+                    <listitem>
+                        <para>
+                            The Zoom-into-a-group button is useful if you have 
images so close to each other on the map that all but the topmost are obscured. 
Once you click on the visible image the zoom factor will be adjusted so that 
all the other images behind it become visible. If you click on a group of 
images and nothing really happens they either have exactly the same geographic 
position and/or the zoom factor is already at its maximum.
+                        </para>
+                        <para>
+                            Note that <quote>group</quote> in this context 
here has nothing to do with grouped images as described in chapter 2 of the 
&digikam-app; Handbook. Here the term refers to images which are very close to 
each other on the map (depending on the zoom factor) or have exactly the same 
geographic position.
+                        </para>
+                    </listitem>
                     <listitem><para>
-                        The Zoom-into-a-group button is useful if you have 
images so close to each other on the map that all but the topmost are obscured. 
Once you click on the visible image the zoom factor will be adjusted so that 
all the other images behind it become visible. If you click on a group of 
images and nothing really happens they either have exactly the same geographic 
position and/or the zoom factor is already at its maximum.
-                    </para></listitem>
-                    <listitem><para>
-                        The Select-images button toggles the selection of an 
image in the list of images right below the buttons once you click on it on the 
map. The selection status of all other images in the list remain unchanged.
+                        The Select-images button toggles the selection of an 
image or a group of images in the list of images right below the buttons once 
you click on it on the map. The selection status of all other images in the 
list remain unchanged. Be aware of the fact that there is a kind of two-stage 
selection! If you click on a thumbnail or marker on the map the selected 
image(s) in the list of images will become a light blue background. If you 
click on it in the list the background will become a darker blue and if there 
where more than one image with light blue background before the others will 
become un-selected. Only clicking on an image in the list will let its preview 
appear to the right of the list.
                     </para></listitem>
                     <listitem><para>
                         The Display-bookmarked-positions-on-the-map button is 
not working at the time of writing because the whole bookmark issue needs to be 
reorganized. This also affects the 
@@ -152,14 +168,14 @@
             </para>
             
             <para>
-                Note that you can change the layout from one map to two maps, 
beside each other or stacked via the little drop-down menu at the bottom of the 
Geolocation Editor.
+                Note that you can change the layout from one map to two maps, 
beside or above each other via the little drop-down menu at the bottom of the 
Geolocation Editor.
             </para>
             
         </sect2>
-                
+
         <sect2 id="geolocation-edit-coordinates">       <title>Edit 
Coordinates</title>
             <para>
-                The coordinates can be set manually in the 
<guilabel>Details</guilabel> tab (see sreenshot above). The location can be 
found and fixed iteratively with the displayed map. Move mouse cursor to the 
region of interest, zoom in, adjust location, zoom in again, and so on until 
sufficient accuracy is achieved. Note that the zoom center will always be at 
the cursor position. Eventually you right click at the desired position and 
choose <guilabel>Copy Coordinates</guilabel>. Now you can go to the list of 
images below the map, select one or more images, right-click on them and choose 
<guilabel>Paste Coordinates</guilabel>. The coordinates will then be displayed 
in the Latitude and Longitude fields to the right of the map. To save your 
changes you click the <guilabel>Apply</guilabel> button.
+                The coordinates can be set manually in the 
<guilabel>Details</guilabel> tab (see screenshot above). The location can be 
found and fixed iteratively with the displayed map. Move the mouse cursor to 
the region of interest, zoom in, adjust location, zoom in again, and so on 
until sufficient accuracy is achieved. Note that the zoom center will always be 
at the cursor position. Eventually you right click at the desired position and 
choose <guilabel>Copy Coordinates</guilabel>. Now you can go to the list of 
images below the map, select one or more images, right-click on them and choose 
<guilabel>Paste Coordinates</guilabel>. The coordinates will then be displayed 
in the Latitude and Longitude fields to the right of the map. To save your 
changes you click the <guilabel>Apply</guilabel> button right under the 
<guilabel>DOP</guilabel> field.
             </para>
             
             <para>
@@ -167,75 +183,158 @@
             </para>
             
             <para>
-                To the right of the map there are beside latitude and 
longitude fields for altitude, speed, number of satellites, fix type and 
uncertainty (DOP). You may see these fields already filled in if you select a 
photograph where your camera wrote these information into the EXIF data. 
Otherwise you can fill them in manually if you have these data from somewhere 
else, &eg; a separate GPS receiver. Only for <guilabel>Altitude</guilabel> the 
context menu on the list of images offers <guilabel>Look up missing altitude 
values</guilabel> which causes the editor to look up these data in the map data 
provided the position (latitude and longitude) is already assigned to the 
photograph.
+                To the right of the map there are, beside latitude and 
longitude, fields for altitude, speed, number of satellites, fix type and 
uncertainty (DOP). You may see these fields already filled in if you select a 
photograph where your camera wrote these information into the EXIF data. 
Otherwise you can fill them in manually if you have these data from somewhere 
else, &eg; a separate GPS receiver. Note that you have to check the relevant 
checkbox before you can edit a field (under &Windows; you may have to 
double-click it). Only for <guilabel>Altitude</guilabel> the context menu on 
the list of images offers <guilabel>Look up missing altitude values</guilabel> 
which causes the editor to look up these data in the map data provided the 
position (latitude and longitude) is already assigned to the photograph.
             </para>
             
             <para>
-                Other than that the context menu on the list of images offer 
items to remove some of the data from the image. Regarding the last item 
<guilabel>Bookmarks</guilabel> see <link 
linkend="bookmarkstatus.anchor">here</link>.
+                To delete geolocation data you got to un-check the relevant 
checkbox and click the <guilabel>Apply</guilabel> button right under the 
<guilabel>DOP</guilabel> field. Other than that the context menu on the list of 
images offer items to remove some of the data from the image. Regarding the 
last item <guilabel>Bookmarks</guilabel> see <link 
linkend="bookmarkstatus.anchor">here</link>.
             </para>
             
         </sect2>
 
+        <sect2 id="geolocation-correlator">       <title>The Correlator</title>
+            <para>
+                In order to correlate your images with geographic data you 
need to have a GPS tracking information available as a XML file in 
<literal>gpx</literal> format (<application><ulink 
url="http://www.gpsbabel.org";>gpsbabel</ulink></application> and 
<application><ulink 
url="http://gpsman.sourceforge.net/";>gpsman</ulink></application>
+                can download and convert tracking data from a GPS device for 
you). The idea is: while taking your pictures just keep a GPS device running 
and carry it around with the camera. Once you are done, download the pictures 
and the GPS tracks, and run the correlator.
+            </para>
+
+            <para>
+                <inlinemediaobject>
+                    <imageobject><imagedata 
fileref="&path;tool-geolocation-correlate1.png" format="PNG" /></imageobject>
+                </inlinemediaobject>
+            </para>
 
-        <sect2 id="geolocation-correlator">       <title>The correlator</title>
             <para>
-                In order to correlate your images with geographic data you 
need to
-                have a GPS tracking information available as a XML file in 
<literal>gpx</literal>
-                format (<application><ulink 
url="http://www.gpsbabel.org";>gpsbabel</ulink></application>
-                and <application><ulink 
url="http://www.ncc.up.pt/gpsman/";>gpsman</ulink></application>
-                can download and convert tracking data from a GPS device for 
you).
+                Select the images you want to correlate in the application 
main view, then call the geolocation editor with 
<menuchoice><shortcut><keycombo 
action="simul">&Ctrl;&Shift;<keycap>G</keycap></keycombo></shortcut><guimenuitem>
 </guimenuitem></menuchoice> and switch to the <guilabel>GPS 
Correlator</guilabel> tab on the Right Sidebar. The above dialog will show up 
with the selected images in the list below the map. To indicate possible 
time/location correlation you have to load a track file with <guilabel>Load GPX 
File</guilabel> that contains GPS data taken at the same time and location as 
the pictures.
+            </para>
+
+            <para>
+                When the file is loaded and <guilabel>Show tracks on 
map</guilabel> is checked the track is displayed on the map. You can load more 
than one file and &digikam; will assign different colors to them and display 
the tracks on the map accordingly.
+            </para>
+
+            <para>
+                GPS track data is invariably recorded in UTC (Universal Time 
Coordinated), so you need to match the camera time with UTC, which can be done 
with <guilabel>Camera time zone:</guilabel>. Select <guilabel>Same as 
system</guilabel> if you took the photographs in your home time zone and 
&digikam; will figure out the difference to UTC from your system time. If you 
took the photographs somewhere else you got to check 
<guilabel>Manual:</guilabel> and choose the appropriate difference from the 
drop-down field to the right. You can use the same mechanism as well to correct 
a simple mis-adjustment of your camera time for whatever reasons or an offset 
of a gpx-file due to quirks of a software used to convert other track file 
formats into gpx. Here comes <guilabel>Fine offset (mm:ss)</guilabel> into play 
where you can add or subtract up to 59 minutes and 59 seconds to your time 
difference chosen in the field above.
+            </para>
+
+            <para>
+                The <guilabel>Max. time gap (sec.):</guilabel> setting 
specifies the limit within which GPS time and camera time shall be deemed 
coincident. The maximum value is 2000 seconds. This means that if no entry in 
the gpx-file matches the time stamp of the photograph exactly, the position of 
the entry with the smallest time gap to the photograph will become assigned to 
it as long as this time gap is smaller than the <guilabel>Max. time gap 
(sec.):</guilabel> setting. If you wonder which value you should specify here a 
look into the settings of your track recording device/software or into the 
gpx-file (which is easily possible with a text editor) might help. The faster 
you were moving while taking the photograph(s) the more important this decision 
will be.
+            </para>
+
+            <para>
+                <guilabel>Interpolate</guilabel> offers another option in case 
there is no exact match between the time stamp of your photograph(s) and an 
entry in the gpx-file and as long as you were moving more or less straight 
between two recorded GPS positions it will be the more precise option. Here the 
position of the photograph is calculated (linear interpolated) from the 
positions of the two closest entries in the gpx-file and the respective 
differences in time. If, for instance, the time gaps between the two closest 
entries and the photograph are equal the position assigned will be on a 
straight line between the positions of the two entries right in the middle.
             </para>
             
             <para>
-                <menuchoice><guimenu>Image</guimenu>
-                <guimenuitem>Geolocation</guimenuitem>
-                <guimenuitem>Correlator</guimenuitem></menuchoice>. 
-                    This interface can correlate a previously selected number 
of pictures
-                    with registered GPS tracking information.
+                <guilabel>Max. interpol. time gap (min):</guilabel> has 
nothing to do with policeman Max from Interpol ;-) Instead it determines 
whether a GPS point is eligible for interpolation. If its time is farther away 
from the picture time than this limit, it cannot be used. 240 minutes is the 
maximum time difference that can be introduced here.
             </para>
             
-            <example id="geolocation-geo-correlation-dialog">
-                    <title>The geo-correlation dialog based on EXIF date/time 
and tracking data (gpx format)</title>
-                        <screenshot><mediaobject><imageobject><imagedata 
fileref="tool-geolocation-correlate1.png" format="PNG" /> 
</imageobject></mediaobject></screenshot>
-            </example>
+            <para>
+                 Once your settings are done you click on the 
<guilabel>Correlate</guilabel> button. If there is no match at all you will get 
the message "Could not correlate any image - please make sure the timezone and 
gap settings are correct." Otherwise you will get something like "2 out of 4 
images have been correlated. Please check the timezone and gap settings if you 
think that more images should have been correlated." Best case you get "All 
images have been correlated. You can now check their position on the map."
+            </para>
             
             <para>
-                Select the images you want to correlate in the application 
main view, then call the menu. The above dialog will show up. To indicate 
possible time/location correlation you have to load a track file with 
<guilabel>Load GPX File</guilabel> that contains GPS data taken at the same 
time and location as the pictures with your camera.
+                If you want to follow this recommendation it is a good idea to 
change to the <guilabel>Details</guilabel> tab since there you have a preview 
of the images which can help a lot to identify them on the map. Remember that 
you always have to click on an image in the list under the map to make its 
preview show up. Once you are satisfied with the results click the 
<guilabel>Apply</guilabel> button at the bottom of the Geolocation Editor to 
save the changes to the image file and the database.
+            </para>
+
+        </sect2>
+        
+        <sect2 id="geolocation-undo-redo">       <title>Undo/Redo</title>
+            <para>
+                In the <guilabel>Undo/Redo</guilabel> tab a history is being 
recorded about all the changes you apply to the images loaded into the 
Geolocation Editor. The history shows changes made in only one tab or in 
several tabs and will be deleted only once you leave the editor. After a few 
actions in the different tabs the record might look like this:
             </para>
             
             <para>
-                When the file is loaded, an automatic correlation is done 
showing the attributed coordinates in red. GPS track data is invariably recorded
-                    in GMT time, so you need to match the camera time with 
GMT, which
-                    can be done with <guilabel>Time Zone</guilabel>. Select the
-                    <emphasis>camera time zone</emphasis> here!
-                </para>
-                <para>
-                    The <guilabel>Max. time gap</guilabel> setting specifies 
the limit
-                    within which GPS time and camera time shall be deemed 
coincident.
-                    The maximum value is 2000 seconds.
-                </para>
-                <tip><para>If you have no tracking data for pictures that were 
taken
-                in the same place you can just manually edit a 
<literal>gpx</literal>
-                file and apply it to those images. The 2000 second time gap 
will then
-                correlate all pictures taken within 20 minutes.
-                </para></tip>
+                <inlinemediaobject>
+                    <imageobject><imagedata 
fileref="&path;tool-geolocation-undo1.png" format="PNG" /></imageobject>
+                </inlinemediaobject>
+            </para>
+                
+            <para>
+                The last step is highlighted when you enter the tab. The first 
step is always labeled <quote>empty</quote> and represents the status the 
images had when they were loaded. You can click on every step and, depending on 
what kind of changes you did, you might see the images appearing, disappearing 
or moving on the map or see the differences in the list of images under the 
map. Note that the list is configurable by right-clicking on the header.
+            </para>
+            
+            <para>
+                Now let's assume that you realize that the move in the last 
step was wrong. You just click on the step before (Details changed), you go to 
the <guilabel>Search</guilabel> tab (described further below) and you do 
another move. After returning to the <guilabel>Undo/Redo</guilabel> tab it 
might look like this:
+            </para>
+            
+            <para>
+                <inlinemediaobject>
+                    <imageobject><imagedata 
fileref="&path;tool-geolocation-undo2.png" format="PNG" /></imageobject>
+                </inlinemediaobject>
+            </para>
+        </sect2>
+        
+        <sect2 id="geolocation-reverse-geocoding">       <title>Reverse 
Geocoding</title>
+            <para>
+                In this tab you can use a public geoname service to look up 
address details of the geographic position of one or more images and convert 
them into tags. In order to do that you need a few preparations. You should be 
already familiar with the idea of tags and how to create, edit and use them. 
The best entry into this issue you find in the Tags View section of Chapter 2 
of the &digikam-app; handbook.
+            </para>
+            <para>
+                First you should create a root tag in the Tag Manager or in 
the tag tree of the Left or Right Sidebar. You might name it Location or Places 
or ...
+            </para>
+            <para>
+                Then you select the image(s) you want to tag (they need to 
have GPS data assigned), open the Geolocation Editor and click the 
<guilabel>Reverse Geocoding</guilabel> tab. You will see your tag tree and if 
you right-click a tag, preferable the one you created for the geo tags, you 
will see this context menu:
+            </para>
+            
+            <para>
+                <inlinemediaobject>
+                    <imageobject><imagedata 
fileref="&path;tool-geolocation-reverse1.png" format="PNG" /></imageobject>
+                </inlinemediaobject>
+            </para>
 
-                <para>
-                    The option <guilabel>Interpolate</guilabel> and 
<guilabel>Difference
-                    in min.</guilabel> can be used if there is no match of 
data. If you
-                    know that in reality there is a location match despite a 
larger time gap
-                    between camera and GPS, you can set this limit here and 
click on the
-                    <guilabel>Correlate</guilabel> button to interpolate.
-                </para>
-                    <example id="geolocation-correlation">
-                    <title>Correlation</title>
-                        <screenshot><mediaobject><imageobject><imagedata 
fileref="tool-geolocation-correlate2.png" format="PNG" /> 
</imageobject></mediaobject></screenshot>
-                </example>
-                <para>
-                    240 minutes is the maximum time difference that can be 
introduced here.
-                </para>
+            <para>
+                In the main section the tags you can add are sorted from the 
largest region (country) down to the smallest (house number). If you choose 
<guilabel>Add all address elements</guilabel> and then fold out the Location 
tag and all the sub-tags you will have this:
+            </para>
 
-        </sect2> 
+            <para>
+                <inlinemediaobject>
+                    <imageobject><imagedata 
fileref="&path;tool-geolocation-reverse2.png" format="PNG" /></imageobject>
+                </inlinemediaobject>
+            </para>
+
+            <para>
+                These red tags in curly brackets are called control tags. They 
determine which address elements you want the reverse geolocation service you 
have chosen at the top under <guilabel>Select service</guilabel> to look for. 
You can still delete some of them with the help of the context menu if you feel 
that you don't need them or modify the structure by deleting some control tags 
and add them in other places of the tree or even build a new tree parallel to 
the first by adding a control tag to the root tag (here: Location). Arranging 
the control tags on the same level instead of a tree structure can save a lot 
of redundant tags since the same city or town name exists in more than one 
state or country let alone street names. But it can make the whole location 
branch of your tag tree quite long and therefore incalculable. This is to say 
that you have to find your own solution to this problem depending on your 
needs, maybe a mix, and the sooner you find it the less work you have to invest 
in editing your tag tree and the control tags.
+            </para>
+            <para>
+                Let us assume you use the control tags as shown in the above 
screenshot, select the images you want to tag from the list of images to  the 
left and click <guilabel>Apply reverse geocoding</guilabel>. Then the tag tree 
might look similar to this:
+            </para>
+ 
+            <para>
+                <inlinemediaobject>
+                    <imageobject><imagedata 
fileref="&path;tool-geolocation-reverse3.png" format="PNG" /></imageobject>
+                </inlinemediaobject>
+            </para>
+            
+            <para>
+                The green tags represent the search result of the selected 
public reverse geocoding service and are already assigned to the image(s). To 
save these tags to the image file and the &digikam; database click 
<guilabel>Apply</guilabel>. The tags will appear as regular tags in your tag 
tree which you can see already here or in the tag tree of the Left or Right 
Sidebar. Of course you can still edit them like any other tag in the Tag 
Manager or in the Left or Right Sidebar, but not here in the Geolocation Editor.
+            </para>
+
+        </sect2>
+        
+        <sect2 id="geolocation-search">       <title>Search</title>
+            <para>
+                In the <guilabel>Search</guilabel> tab you can look up places 
by their geographic names using public geoname services (GeoNames and 
OpenStreetMap at the time of writing). You just type in a name of a place 
(city, monument, hotel, ...) into the input field at the top and click 
<guilabel>Search</guilabel>. In the result list below you will get something 
like this:
+            </para>
+            
+            <para>
+                <inlinemediaobject>
+                    <imageobject><imagedata 
fileref="tool-geolocation-search.png" format="PNG" /></imageobject>
+                </inlinemediaobject>
+            </para>
+            
+            <para>
+                Obviously Paris does not only exist in France. So if you were 
looking for the capital of France you can either scroll down the list until you 
find an entry that undoubtedly belongs to there like "Arc de Triomphe" and 
click on it or specify your search a little bit more precise like "Paris, Arc 
de Triomphe" or "Paris, France". Once you click on an entry in the list the map 
will become centered to that place and you can now zoom in with the zoom-in 
button (second from the left below the map). Using this example with GeoNames 
you will notice that you still get a lot of results and even two labeled only 
"Arc de Triomphe", the second one a street a few hundred meters away from the 
arch. With OSM you get only one result. You got to play a bit with the 
different services in different regions, with more or less precise search terms 
and then you will get an idea about how to best conduct your searches.
+            </para>
+            <para>
+                For the buttons right above the result list refer to their 
tooltips! The context menu on search result entries offers
+            </para>
+            
+            <itemizedlist>
+                <listitem><para><guilabel>Copy coordinates</guilabel> which 
you can paste later to one or more images in the image list under the 
map</para></listitem>
+                <listitem><para><guilabel>Move selected images to this 
position</guilabel> which is basically the same but more straightforward 
provided you have the images already loaded into the geolocation 
editor</para></listitem>
+                <listitem><para><guilabel>Remove from results list</guilabel> 
which is particular useful in conjunction with the 
Keep-the-results-of-old-searches-... button above the results 
list.</para></listitem>
+            </itemizedlist>
+
+        </sect2>
     </sect1>
 </chapter>
 
diff --git a/digikam/using-mainwindow-intro.docbook 
b/digikam/using-mainwindow-intro.docbook
index a752b74..4b79765 100644
--- a/digikam/using-mainwindow-intro.docbook
+++ b/digikam/using-mainwindow-intro.docbook
@@ -76,12 +76,16 @@
 
                 <listitem><para>Toggle preview of selected 
image</para></listitem>
 
+                <listitem><para>Switch to map view to display images with 
geolocation data</para></listitem>
+
                 <listitem><para>Switch to configurable table 
view</para></listitem>
 
                 <listitem><para>Slideshow drop down menu</para></listitem>
 
                 <listitem><para>Toggle Full Screen 
(&Ctrl;+&Shift;+<keycap>F</keycap>)</para></listitem>
 
+                <listitem><para>Link to digikam.org, also an indicator for 
ongoing processes</para></listitem>
+
             </orderedlist>
 
         </para>
diff --git a/digikam/using-mainwindow-mapview.docbook 
b/digikam/using-mainwindow-mapview.docbook
index 322263b..129a1b8 100644
--- a/digikam/using-mainwindow-mapview.docbook
+++ b/digikam/using-mainwindow-mapview.docbook
@@ -2,15 +2,18 @@
    <title>Map View</title>
 
     <para>
-        The whole &digikam; geolocation suite - if you want to call it that 
way ;-) - consists of three parts:
+        The whole &digikam; geolocation suite - if you want to call it that 
way ;-) - consists of four parts:
     </para>
         <orderedlist numeration="arabic">
+            <listitem><para>
+                The Map mode of the Image Area which displays images with GPS 
data on a map depending on the selection on the Left Sidebar, &eg; the images 
in the album you selected in the Album View, the images with a certain tag 
assigned (selected in the Tag View), with a certain label and so on.
+            </para></listitem>
             <listitem><para>This view which is the search tool for finding 
images by their GPS data.</para></listitem>
             <listitem><para>The <link 
linkend="tool-geolocationeditor">Geolocation Editor</link> which is accessible 
via <menuchoice><shortcut><keycombo 
action="simul">&Ctrl;&Shift;<keycap>G</keycap></keycombo></shortcut><guimenu>Item</guimenu><guimenuitem>Edit
 Geolocation...</guimenuitem></menuchoice> and allows to set and to edit GPS 
data.</para></listitem>
             <listitem><para>The <link linkend="using-sidebar-maps">Map</link> 
tab on the Right Sidebar which shows the location of the image on a map and is 
purely informative.</para></listitem>
         </orderedlist>
     <para>
-        All three are based on the &marble; widget.
+        All four are based on the &marble; widget.
     </para>
 
     <para>
diff --git a/digikam/using-sidebar-maps.docbook 
b/digikam/using-sidebar-maps.docbook
index ac39707..7702913 100644
--- a/digikam/using-sidebar-maps.docbook
+++ b/digikam/using-sidebar-maps.docbook
@@ -2,33 +2,28 @@
     <title>Maps</title>
 
     <para>
-        &digikam; offers three geolocation tools:
-    </para>
-
-    <orderedlist numeration="arabic">
-
-        <listitem>
-            <para>
-                The <link linkend="using-mainwindow-mapview">Map View</link>on 
the Left Sidebar which is the search tool for finding images by their GPS data.
-            </para>
-        </listitem>
+        There are four tools regarding geolocation in &digikam-app; and two in 
&showfoto;:
+        <orderedlist numeration="arabic">
 
-        <listitem>
-            <para>
-                The <link linkend="tool-geolocationeditor">Geolocation 
Editor</link> which is accessible via <menuchoice><shortcut><keycombo 
action="simul">&Ctrl;&Shift;<keycap>G</keycap></keycombo></shortcut><guimenu>Item</guimenu><guimenuitem>Edit
 Geolocation...</guimenuitem></menuchoice> and allows to set and to edit GPS 
data.
-            </para>
-        </listitem>
+            <listitem><para>
+                The Map mode of the Image Area which displays images with GPS 
data on a map depending on the selection on the Left Sidebar, &eg; the images 
in the album you selected in the Album View, the images with a certain tag 
assigned (selected in the Tag View), with a certain label and so on. This is 
only available in &digikam-app;.
+            </para></listitem>
+    
+            <listitem><para>
+                The Map View on the Left Sidebar of &digikam-app; which is the 
search tool for finding images by their GPS data. This is also only available 
in &digikam-app;.
+            </para></listitem>
+    
+            <listitem><para>
+                The <link linkend="tool-geolocationeditor">Geolocation 
Editor</link> which is accessible via <menuchoice><shortcut><keycombo 
action="simul">&Ctrl;&Shift;<keycap>G</keycap></keycombo></shortcut><guimenu>Item</guimenu><guimenuitem>Edit
 Geolocation...</guimenuitem></menuchoice> 
+                (<menuchoice><guimenu>File</guimenu><guimenuitem>Edit 
Geolocation...</guimenuitem></menuchoice> in &showfoto;) and allows to set and 
to edit GPS data.
+            </para></listitem>
 
-        <listitem>
-            <para>
-                This tab on the Right Sidebar which shows the location of the 
image on a map and is purely informative.
-            </para>
-        </listitem>
+            <listitem><para>
+                The Map tab on the Right Sidebar we are talking about here 
which shows the location of the image on a map and is purely informative.
+            </para></listitem>
 
-    </orderedlist>
-
-    <para>
-        All three are based on the &marble; widget.
+        </orderedlist>
+        All four are based on the &marble; widget.
     </para>
 
     <para>
diff --git a/showfoto/index.docbook b/showfoto/index.docbook
index 368c49f..0c03f4a 100644
--- a/showfoto/index.docbook
+++ b/showfoto/index.docbook
@@ -13,9 +13,6 @@
     <!ENTITY doc-intro-contrib                    SYSTEM 
"../digikam/intro-contrib.docbook">
     <!ENTITY doc-intro-imageformats               SYSTEM 
"../digikam/intro-imageformats.docbook">
 
-    <!ENTITY doc-using-mainwindow                 SYSTEM 
"../digikam/using-mainwindow.docbook">
-    <!ENTITY doc-using-mainwindow-mapview         SYSTEM 
"../digikam/using-mainwindow-mapview.docbook">
-
     <!ENTITY doc-using-sidebar                    SYSTEM 
"../digikam/using-sidebar.docbook">
     <!ENTITY doc-using-sidebar-intro              SYSTEM 
"../digikam/using-sidebar-intro.docbook">
     <!ENTITY doc-using-sidebar-properties         SYSTEM 
"../digikam/using-sidebar-properties.docbook">
@@ -104,7 +101,7 @@
 
     <!ENTITY doc-tool-acquireimages               SYSTEM 
"../digikam/tool-acquireimages.docbook">
     <!ENTITY doc-tool-presentation                SYSTEM 
"../digikam/tool-presentation.docbook">
-    <!ENTITY doc-tool-geolocationeditor           SYSTEM 
"../digikam/tool-geolocationeditor.docbook">
+    <!ENTITY doc-tool-geolocation                 SYSTEM 
"../digikam/tool-geolocationeditor.docbook">
     <!ENTITY doc-tool-metadataeditor              SYSTEM 
"../digikam/tool-metadataeditor.docbook">
 
     <!ENTITY doc-menu-editor                      SYSTEM 
"../digikam/menu-editor.docbook">
@@ -249,13 +246,6 @@
         &doc-editor-photoediting;
         &doc-editor-cm;
 
-        <sect1 id="using-map-view">
-            <title>&showfoto; Map View</title>
-
-            &doc-using-mainwindow-mapview;
-
-        </sect1>
-
         <sect1 id="using-setup">
             <title>&showfoto; Configuration</title>
 
@@ -334,7 +324,7 @@
     <!-- ******** MISC TOOLS 
*************************************************** -->
 
     &doc-tool-acquireimages;
-    &doc-tool-geolocationeditor;
+    &doc-tool-geolocation;
     &doc-tool-presentation;
     &doc-tool-metadataeditor;
 

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