<?xml version="1.0"?>
-<!DOCTYPE article PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" [
+<!DOCTYPE article PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
+"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
<!ENTITY appname "Viking">
<!ENTITY app "<application>Viking</application>">
<!ENTITY appversion "1.5">
</note>
</section>
+<section>
+<title>Import GeoJSON File</title>
+<para>
+<menuchoice><guimenu>File</guimenu><guimenuitem>Acquire</guimenuitem><guimenuitem>Import GeoJSON File</guimenuitem></menuchoice>
+</para>
+<para>
+This uses the program <ulink url="https://github.com/tyrasd/togpx">togpx</ulink> to load .geojson files.
+If the program is not detected on your system, then this option will not be available.
+See <ulink url="https://www.npmjs.org/package/togpx">here</ulink> for the installation method.
+</para>
+<para>
+The current version (1.4.4) of GPSBabel does not support the <ulink url="http://geojson.org/">GeoJSON</ulink> file format.
+</para>
+</section>
+
</section> <!-- End Acquire -->
<section><title>Print</title>
<section><title>Export Layer</title>
<para>
-The layer (all tracks, routes and waypoints) can be exported to a file GPX, GPSPoint, GPSMapper, Google's KML format or any other format supported by GPSbabel.
+The layer (all tracks, routes and waypoints) can be exported to following file formats:
</para>
+<orderedlist>
+ <listitem>
+ <para>GPX</para>
+ </listitem>
+ <listitem>
+ <para>GPSPoint</para>
+ </listitem>
+ <listitem>
+ <para>GPSMapper</para>
+ </listitem>
+ <listitem>
+ <para>Google's KML</para>
+ </listitem>
+ <listitem>
+ <para>Any GPSBabel <ulink url="http://www.gpsbabel.org/capabilities.html">File Formats</ulink></para>
+ </listitem>
+ <listitem>
+ <para>GeoJSON. Via the program <ulink url="https://github.com/mapbox/togeojson">togeojson</ulink></para>
+ <para>This option will not be available if the program is not detected on your system.
+ See <ulink url="https://www.npmjs.org/package/togeojson">here</ulink> for the installation method.</para>
+ </listitem>
+</orderedlist>
<para>
Version1.1+: An individual track can be exported to a GPX file via the track menu.
</para>
This opens dialog to request the number of points each track will be simplified using <application>GPSBabel</application>. The result is put into a new layer. The simplification method removes points considered to be in a 'near straight line', thus reducing the number of points and attempting to keep the most important turning points.
</para>
</section>
+<section><title>Compress Tracks</title>
+<para>
+Enables compression of tracks and routes via <application>GPSBabel</application>'s <emphasis>Crosstrack</emphasis> simplify method.
+It opens a dialog to request the Error factor value which is the maximum allowable error that may be introduced by removing a single point.
+It is expressed a distance in units as specified by the <xref linkend="prefs"/> distance option.
+Thus a higher value will remove more points.
+The result is put into a new layer.
+</para>
+</section>
<section><title>Remove Duplicate Waypoints</title>
<para>
Remove Duplicate Waypoints - fairly self explainatory, with the results created in a new layer.
<listitem>
<para>window_menubar=true</para>
</listitem>
+ <listitem>
+ <para>window_copy_centre_full_format=false</para>
+ </listitem>
<listitem>
<para>version_check_period_days=14</para>
</listitem>
</formalpara>
</section>
+<xi:include href="attribution.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+
</article>