<?xml version="1.0"?>
<!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 gpsbabel         "<ulink url='https://gpsbabel.org/'>GPSBabel</ulink>">
]>

<section id="recommends">
<title>Recommended Programs</title>

<formalpara><title>gpsbabel</title>
<para>&appname; uses &gpsbabel; for several important functions, such as:</para>
</formalpara>
<itemizedlist>
<listitem><para>Importing Files from many formats (including KML)</para></listitem>
<listitem><para>Exporting Files to various formats</para></listitem>
<listitem><para>Transfer Data to/from GPS Devices via serial connections</para></listitem>
</itemizedlist>
<para>Thus these will not be available if the program can not be found.</para>
<para>For <trademark>Unix</trademark> like systems this will search the system path to find the program, as it is typically installed via the System's package manager.</para>
<para>
	From &appname; 1.6 onwards &gpsbabel; is not deployed automatically on <trademark>Windows</trademark> systems.
	If &gpsbabel; is not installed in a typical <trademark>Windows</trademark> location that &appname; can find,
	then the &gpsbabel; preference can be set to specify the exact location. See <xref linkend="prefs_external"/>.
</para>
<para>&appname; will need to be restarted to use the new &gpsbabel; location preference.</para>

<formalpara><title>unbuffer</title>
<para>&appname; uses unbuffer command to optimize conversion calls.</para>
</formalpara>
<para>This mainly applies to <trademark>Unix</trademark> like systems when invoking &gpsbabel; commands.</para>

<formalpara><title>gpsd (not available for <trademark>Windows</trademark>)</title>
<para>&appname; can use <ulink url="https://gpsd.gitlab.io/gpsd">gpsd</ulink> to get the current location.</para>
</formalpara>

<formalpara><title>togpx</title>
<para>&appname; will use <ulink url="https://github.com/tyrasd/togpx">togpx</ulink> to open GeoJSON files if the program is available on the system.</para>
</formalpara>

<formalpara><title>togeojson</title>
<para>&appname; will use <ulink url="https://github.com/mapbox/togeojson">togeojson</ulink> to export to GeoJSON files if the program is available on the system.</para>
</formalpara>

</section>
