undropped caves code -> GPX

core/models/survex.py

@@ -113,7 +113,13 @@ class SurvexStation(models.Model):
             
         return diff_str, ref
  
-        
+    def gpx_location(s): # s == self
+        # <wpt lon="13.82093593" lat="47.69501184"><ele>1857.90</ele><name>tunnocks</name></wpt>
+        latitude, longitude = utmToLatLng(33, s.x, s.y, northernHemisphere=True)
+        if s.name:
+            return f'<wpt lon="{longitude:0.8f}" lat="{latitude:0.8f}"><ele>{s.z:0.0f}</ele><name>{s.name[5:]}</name></wpt>\n'
+        else:
+            return ""        
     
 
 def utmToLatLng(zone, easting, northing, northernHemisphere=True): # move this to utils.py ?

core/views/caves.py

@@ -5,6 +5,7 @@ import tempfile
 import urllib
 import zipfile
 from pathlib import Path
+from datetime import datetime, timezone
 
 import django
 from bs4 import BeautifulSoup
@@ -20,6 +21,7 @@ from troggle.core.forms import CaveForm, EntranceForm, EntranceLetterForm  # Cav
 from troggle.core.models.caves import Cave, CaveAndEntrance, Entrance, GetCaveLookup, get_cave_leniently
 from troggle.core.models.logbooks import QM
 from troggle.core.models.wallets import Wallet
+from troggle.core.models.survex import SurvexStation
 from troggle.core.utils import (
     get_cookie_max_age,
     WriteAndCommitError,
@@ -205,6 +207,32 @@ def getnotablecaves():
     print(notablecaves)
     return notablecaves
 
+def caves_undropped_gpx(request):
+    caves1623 = Cave.objects.filter(areacode="1623",unexplored="True")
+    caves1626 = Cave.objects.filter(areacode="1626",unexplored="True")
+ 
+    
+    allcaves = list(caves1623) + list(caves1626)
+    
+    ent_locations = []
+    for cave in allcaves:
+        ces = CaveAndEntrance.objects.filter(cave=cave)
+        for ce in ces:
+            stations = SurvexStation.objects.filter(entrance=ce.entrance)
+            for station in stations:
+                if gpx := station.gpx_location():
+                   ent_locations.append(gpx)
+    
+ 
+    return render(
+        request,
+        "cavesundroppedgpx.html",
+        
+        {"ent_locations": ent_locations,
+        "now" : datetime.now(timezone.utc).strftime("%Y-%m-%dT%H:%M:%SZ"), # GPX format and UTC timezone
+        "year": current_expo()},
+    )
+    
 def caves_undropped(request):
     caves1623 = list(Cave.objects.filter(areacode="1623",unexplored="True"))
     caves1626 = list(Cave.objects.filter(areacode="1626",unexplored="True"))

templates/cavesundropped.html

@@ -10,7 +10,8 @@
 
 <p>
 See <em><a href="/caves">All Caves</a></em> for all the caves in areas 1623, 1626, 1624, 1627 <br />
-See <em><a href="/caves_recent">Recent Caves</a></em> for a full list of recent caves.
+See <em><a href="/caves_recent">Recent Caves</a></em> for a full list of recent caves.<br />
+Download <em><a href="/caves_undropped_gpx" download="undropped.gpx">Undropped GPX file</a></em> (This is only the subset which are fully located.)
 
     <p style="text-align:right">
     <a href="{% url "newcave" %}">New Cave</a><br>

templates/cavesundroppedgpx.html

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<gpx version="1.0" creator="troggle https://expo.survex.com/troggle" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.topografix.com/GPX/1/0" xsi:schemaLocation="http://www.topografix.com/GPX/1/0 http://www.topografix.com/GPX/1/0/gpx.xsd">
+<name>Expo undropped caves</name>
+<time>{{now}}</time>
+{% for e in ent_locations %}{{e|safe}}{% endfor %}</gpx>

urls.py

@@ -12,6 +12,7 @@ from troggle.core.views.caves import (
     cave_debug,
     caves_recent,
     caves_undropped,
+    caves_undropped_gpx,
     cavesall,
     cavepage,
     caveQMs,
@@ -161,6 +162,7 @@ trogglepatterns = [
     path('caveslist',        caveslist,      name="caveslist"),
     path('caves_recent',        caves_recent,      name="caves_recent"),
     path('caves_undropped',        caves_undropped,      name="caves_undropped"),
+    path('caves_undropped_gpx',        caves_undropped_gpx,      name="caves_undropped_gpx"),
 
     path('entrances',      entranceindex,      name="entranceindex"),
     path('enttags',      entrancetags,      name="entrancetags"),