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Code Issues 18 Projects 3 Activity

more explanation about wallet survey lengths

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Philip Sargent
2025-10-20 17:25:30 +03:00
parent 79ef45a99f
commit 5e4ab5006f
4 changed files with 17 additions and 6 deletions
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templates/survexfilewild.html
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@@ -48,7 +48,7 @@ and there is {{foreignlength|floatformat:"0g"}}m of foreign (non-expo) surveyed
If the "team" field is empty, it probably means that it is an ARGE survey (in German) and so we do not recognise any participants as valid 'expo' members.
Or it may mean that we did it, but that the survex file has been created since the last database reset.
<br />
If the parent block says "troggle _unseens" or "None" then the survex file has not been plumbed in to the expo survex network yet.
If the parent block says "troggle _unseens" or "None" then the survex file has either not been plumbed in to the expo survex network yet, <b>or it is a duplicate survey</b>.
<br />
If there is a *ref line of the correct format, then maybe that wallet has not been created yet. Create it, and fill in the data.
<br /><br />
@@ -67,11 +67,15 @@ Length of survex data referenced by wallets in this year {{walletslength|floatfo
</table>
<p>These are uncorrected tape lengths which include pitches and duplicates but exclude splays or surface-surveys.
<p>These are <em>uncorrected</em> tape lengths (before loop-closure corrections) which include pitches <b>and duplicates</b> but exclude splays or surface-surveys.
<p>One Survex Survey Block is one *begin/*end block of data in a survex file.
Some files from other caving clubs may have a convention of using many more blocks per file than we do, e.g. if the
file is exported from other software into survex format.
<p>This only includes lengths surveyed by Expo survey trips (though not all have valid Expo-attendees as some survex files are administrative collections of *include statements). This no longer (since 30 June 2025) includes ARGE and other non-expo surveys.
<p>Authoritative survey lengths for each cave are calculated using <a href="/handbook/troggle/cavelengths.html">a script</a> which uses the
<em>loop-closure corrected</em> lengths and is manually curated to exclude duplicate surveys of the same cave. The results are maintained
in an <a href="/repositories/loser/.git/tree/docs/smklengths.ods">ODS-format spreadsheet</a>.
{% endblock %}