troggle/templates/eastings.html

{% extends "base.html" %}
{% block title %}Cave Entrances and other locations in UTM{% endblock %}

{% block content %}

<h1>Entrance locations</h1>

<p>
These first two tables are all the Caves which have <em>manual</em> locations specified as Northing/Easting coordinates in their Cave Entrance Description data. 
<p>
This report is to help you sort out and fix the bad data in our records. You can see from the tables here
that UTM data sometimes have Northings and Eastings swapped, or UTM is used when it is intended to be 
BMN and vice versa.

<p>All surveyed caves have entrance locations fixed by the survex data, as survey stations with names such as 
1623.p277a . This is the reliable data and is shown in the third table. The reason why we have manual data is because when a 
cave entrance is first discovered, it is not yet connected to the survey network. But we want to record its position
otherise we will lose it.

<p>
Coordinate systems in Austria are explained in:<br>
<a href="/handbook/survey/lasers.htm">Geographical fixed points on Loser</a><br>
<a href="/handbook/survey/coord2.html">GPS and coordinate systems</a><br>
<a href="/handbook/survey/coord.htm">Basic Coordinate Systems</a>.

<p>The data in the table immediately below has been hand-entered and is sometimes very wrong.
<p>The Lat. Long. coordinates are manually entered using a phone or a hand-held GPS device at (or near) the entrance.
<p>For the Cave column, if there is an official cave name, then it is shown. 
Otherwise whatever other name we can find for it is shown <em>in italics</em>.
For the Entrance column, if the entrance has a name (e.g. Gr&uuml;ner Eingang in Schwarzmooskogeleish&ouml;hle) then it is shown.
 Otherwise it says "Anon:" followed by whatever other name we can find for it, usually the entrance id slug,  <em>in italics</em>.
<style> 
th, td {
  padding-left: 5px;
  padding-right: 5px;
</style>
<table>
<tr><th>Cave</th><th>Entrance</th><th>best Easting</th><th>best Northing</th><th>GPS Lat</th><th>GPS Long</th><th>tag</th><th>tag exact</th><th>tag other</th><th>slug</th></tr>
{% for ent in ents %}
<tr>
  <td style="text-align:left">
  {% for c in ent.cavelist %}
    <a href="/{{c.url}}">
    {% if c.official_name %}
        {{c.official_name|safe}}
    {% else %}
        <em>{{c|safe}}</em>
    {% endif %}</a><br>
  {% endfor %}</td>
  <td style="text-align:left">
    {% if ent.name %}
        {{ent.name|safe}}
    {% else %}
        Anon: <em>{{ent|safe}}</em>
    {% endif %}
  </td>
  <td style="text-align:right">{{ent.easting|floatformat:2}}</td>
  <td style="text-align:right">{{ent.northing|floatformat:2}}</td>
  <td style="text-align:right">{{ent.lat_wgs84|floatformat:6}}</td>
  <td style="text-align:right">{{ent.long_wgs84|floatformat:6}}</td>
  <td style="text-align:right">{{ent.tag_station}}</td>
  <td style="text-align:right">{{ent.exact_station}}</td>
  <td style="text-align:right">{{ent.other_station}}</td>
  <td style="text-align:right">{{ent.slug}}</td>
</tr>
{% endfor %}
</table>
<p>and now with the locations of the survey stations. All as UTM eatings, norhtings:
<table>
<tr><th>Cave</th><th>best Lat</th><th>best Long</th><th>tag</th><th>tag Lat</th><th>tag Long</th><th>tag exact</th><th>exact Lat</th><th>exact Long</th><th>tag other</th><th>other Lat</th><th>other Long</th></tr>
{% for ent in ents %}
<tr>
  <td style="text-align:left">
  {% for c in ent.cavelist %}
    <a href="/{{c.url}}">
    {% if c.official_name %}
        {{c.official_name|safe}}
    {% else %}
        <em>{{c|safe}}</em>
    {% endif %}</a><br>
  {% endfor %}</td>
 
  <td style="text-align:right">{{ent.lat|floatformat:6}}</td>
  <td style="text-align:right">{{ent.long|floatformat:6}}</td>
  <td style="text-align:right">{{ent.tag_station}}</td>
  <td style="text-align:right">{{ent.tag_ts.lat|floatformat:6}}</td>
  <td style="text-align:right">{{ent.tag_ts.long|floatformat:6}}</td>
  <td style="text-align:right">{{ent.exact_station}}</td>
  <td style="text-align:right">{{ent.tag_es.lat|floatformat:6}}</td>
  <td style="text-align:right">{{ent.tag_es.long|floatformat:6}}</td>
  <td style="text-align:right">{{ent.other_station}}</td>
  <td style="text-align:right">{{ent.tag_os.lat|floatformat:6}}</td>
  <td style="text-align:right">{{ent.tag_os.long|floatformat:6}}</td>
 </tr>
{% endfor %}
</table>

<p>But the Entrances - the objects in the troggle system - are not properly connected to the dataset which is the combined set of survex data. They are only linked - and only implicitly - by the tag name. The data in the table below is calculated directly from 
the assemblage of survex files, including fixed point files, and is probably 'correct'. 
<p>But which coordinate system are they in ? Read these three articles to find out:
<br>
<a href="/eastings">Troggle UTM data report</a><br>
<a href="/handbook/survey/lasers.htm">Geographical fixed points on Loser</a><br>
<a href="/handbook/survey/coord2.html">GPS and coordinate systems</a><br>
<a href="/handbook/survey/coord.htm">Basic Coordinate Systems</a>.

<table cellpadding="6" cellspacing="8">
<tr><th>Survex Station</th><th>x</th><th>y</th><th>lat.</th><th>long.</th></tr>
{% for s in stations %}
<tr>
  <td style="text-align:left; width:240px"> {{s.name|safe}} </td>
  <td style="text-align:right; width:90px"> {{s.x|floatformat:2}} </td>
  <td style="text-align:right; width:90px"> {{s.y|floatformat:2}} </td>
  <td style="text-align:right; width:90px"> {{s.lat|floatformat:6}} </td>
  <td style="text-align:right; width:90px"> {{s.long|floatformat:6}} </td>
  
</tr>
{% empty %}
  <td colspan="3"> NO STATION DATA - This is due to survex (cavern) failing on the entire dataset.
  <br>See <a href="/dataissues">DataIssues</a> 'survex' section . 
  <br>Resolve the survex errors and do a full databasereset import. 
  <br>You should look at the .log and .err files produced by survex in the :loser: repo folder first.
  <br>
  <br>Probably, the generaton of the .3d file has failed, so the .pos file is not generated.
  <br> Look for a message like this 'Failed to find /mnt/d/EXPO/loser/1623-and-1626-no-schoenberg-hs.3d so aborting generation of new .pos, using old one if present'
  </td>
{% endfor %}
</table>

{% endblock %}