From f8ad6aea8cebfb559410d44795a3adf3195c63e4 Mon Sep 17 00:00:00 2001 From: Philip Sargent Date: Sun, 11 May 2025 16:00:36 +0100 Subject: [PATCH] Excised from another page - online edit of handbook/essentials_make.html --- handbook/essentials_make.html | 36 +++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 handbook/essentials_make.html diff --git a/handbook/essentials_make.html b/handbook/essentials_make.html new file mode 100644 index 000000000..38d94d4f4 --- /dev/null +++ b/handbook/essentials_make.html @@ -0,0 +1,36 @@ +Making essentials.gpx +

CUCC Expedition Handbook

+

Essential GPS - regenerating the GPX file

+ +

Nerds only: getting the very latest GPS essentials file

+ +

+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. +

+To regenerate the most recent version 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. +

The data is in the version control system repository :loser: in +

+	loser/gpx/
+
+and is generated from the survex data by a script. It is best to do this on a laptop which has the entire :loser: +repo downloaded onto it (e.g. the expo laptop) rather than on the server itself as the server can run out of memory doing this. + +

The most recent track data will have been uploaded by an expoer into e.g. +

+	expofiles/gpslogs/2019/MichaelSargent/col-to-homecoming-msargent-2019-07-14_18-38_Sun.gpx
+
+

and this will need to be hand-edited into script-generated essentials.gpx file. + +

Regenerating the essentials.gpx file

+

There are two scripts needed for this: +make_essentials.sh and +make_svx.sh +both of which are stored in the :loser: repository in :loser:/gpx/ . +

Read the README file in that directory. +

They are documented in the long list of Other scripts. +

The future

+

Location fixing: How to obtain a fixed point for a cave survey "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. " + +