diff options
| -rw-r--r-- | templates/cave.html | 4 | ||||
| -rw-r--r-- | templates/eastings.html | 2 |
2 files changed, 3 insertions, 3 deletions
diff --git a/templates/cave.html b/templates/cave.html index 00b2a5f..f3b36db 100644 --- a/templates/cave.html +++ b/templates/cave.html @@ -118,7 +118,7 @@ {% endif %} <h2>Scanned survey notes</h2> - <a href="{% url "cavewallets" cave_id %}">{{ cave_id|safe }}</a> + <a href="{% url "cavewallets" cave_id %}">{{ cave_id|safe }}</a> (if any) {% endif %} {% if cave.notes %} @@ -205,7 +205,7 @@ <a class="editlink" href="{% if local %}https://expo.survex.com{% endif %}{% url "newentrance" cave.url_parent cave.slug %}">New Entrance</a> </div> <h2>Survex File(s)</h2> - All <a href="/survexfile/{{ cave.areacode }}-{% if cave.kataster_number %}{{cave.kataster_number}}{% else %}{{cave.unofficial_number}}{% endif %}">survexfiles</a> for this cave <br /> + All <a href="/survexfile/{{ cave.areacode }}-{% if cave.kataster_number %}{{cave.kataster_number}}{% else %}{{cave.unofficial_number}}{% endif %}">survexfiles</a> for this cave (if any) <br /> {% if cave.survex_file %} Primary <a href="/survexfile/{{cave.survex_file}}">survex file</a> for this cave <br> diff --git a/templates/eastings.html b/templates/eastings.html index 2bb57ed..399cb97 100644 --- a/templates/eastings.html +++ b/templates/eastings.html @@ -37,7 +37,7 @@ th, td { <p>OK now for the nasty bit. Many of the older caves did not have easting & northing in UTM 33T at all, but (probably) in BMN and converting between BMN into UTM requires ellipsoids and bessel functions.. or we can just take a linear approximation, which is what I have done here:<br> e.northingUTM = e.northingBMN + 5198919.918<br> e.eastingUTM = e.easting + 374854.63<br> -Such converted eastings and northings are <em>in italics</em> in the table below. As you can see, some were wildly out. +Such converted eastings and northings are <em>in italics</em> in the table below. As you can see, some were wildly out. Well they were until I swapped teh easting/northings around and dealt with obvious typos. <p>These magic numbers simply come from assuming that both BMN and UTM are in metres, and linear over our area, and then taking the avergage of the offsets for 5 locations, the 5 cave entrances at the bottom of this page: <a href="http://localhost:8000/handbook/survey/coord.htm#summary">Olaf's Coordinates</a>. <p>This horrible approximation is accruate to ~8m in the northing and ~30m in the easting. |