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Moved regeneration of the essentials file to a separate page - online edit of handbook/essentials.html

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Philip Sargent
2025-05-11 15:59:58 +01:00
committed by Expo on server
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handbook/essentials.html
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@@ -197,36 +197,11 @@ which uses gpsbabel to talk to your device.
If this doesn't work then there are no useful error messages from Viking.
</ul>
<h2 id="down">Nerds only: getting the <i>very latest</i> GPS essentials file </h2>
<p>
We create a new version of this essential GPS data during expo and as expoers discover new entrances and
devise new routes to reach them.
<p>
To regenerate the <i>most recent version</i> which contains the cave entrances discovered during expo
you will need to ask someone who is competent in logging into the server and running scripts.
<p>The data is in the version control system <a href="computing/repos.html">repository</a> <var>:loser:</var> in
<pre>
loser/gpx/
</pre>
and is generated from the survex data by a script. It is best to do this on a laptop which has the entire <var>:loser:</var>
repo downloaded onto it (e.g. the <i>expo laptop</i>) rather than on the server itself as the server can run out of memory doing this.
<p>The most recent track data will have been uploaded by an expoer into e.g.
<pre>
expofiles/gpslogs/2019/MichaelSargent/col-to-homecoming-msargent-2019-07-14_18-38_Sun.gpx
</pre>
<p>and this will need to be hand-edited into script-generated essentials.gpx file.
<h2 id="down">The <i>very latest</i> GPS essentials file </h2>
<h3>Regenerating the essentials.gpx file</h3>
<p>There are two scripts needed for this:
<a href="troggle/scriptscurrent.html#gps">make_essentials.sh</a> and
<a href="troggle/scriptscurrent.html#surface">make_svx.sh</a>
both of which are stored in the <var>:loser:</var> repository in :loser:/gpx/ .
<p>Read the <a href="troggle/make-essentialsREADME.txt">README</a> file in that directory.
<p>They are documented in the long list of <a href="troggle/scriptsother.html">Other scripts</a>.
<h3>The future</h3>
<p> <a href="https://www.cavinguk.co.uk/info/locatingsurveys.html">Location fixing: How to obtain a fixed point for a cave survey</a> "Galileo High Accuracy Service (HAS) is due to become partly available in 2022 and fully available in 2024, which will offer RTPPP for free around the world, both via satellite and network connections. And there will be much rejoicing. "
<p>This (nerds only) has been moved to a separate page: <a href="/handbook/essentials_make.html">regenerating essentials.gpx</a>.
<hr />