trying to find srtm *fix stations

core/utils.py

@@ -363,7 +363,7 @@ def find_nearest_point(points, target_point):
 #let raw = [[406264.72, 5278037.57, 873.53],
 #first version:
 #rawheights = [[406264.72, 5278037.57, 873.53],
-
+# [[406264.72, 5278037.57, 826.64], from constants.js 14 Nov 2023, i.e. 46.89m lower
 rawheights = [[406264.72, 5278037.57, 873.53],
 [406314.69, 5278036.50, 861.60],
 [406364.66, 5278035.43, 852.51],

parsers/survex.py

@@ -50,8 +50,8 @@ METRESINFEET = 3.28084
 UNSEENS = "_unseens.svx"
 
 IGNOREFILES  = ["dummy_file"]
-IGNOREPREFIX = ["surface", "kataster", "fixedpts", "gpx", "deprecated"]
-EXCEPTPREFIX = ["surface/terrain", "kataster/kataster-boundaries", "gpx/gpx_publish/essentials", "template", "docs", "deprecated", "subsections", "1623-and-1626-no-schoenberg-hs", "1623-and-1624-and-1626-and-1627", "1623-and-1626", "1623.svx", "1626.svx", "smk-system.svx"]
+IGNOREPREFIX = ["surface", "kataster", "gpx", "deprecated"] #"fixedpts", 
+EXCEPTPREFIX = ["surface/terrain", "kataster/kataster-boundaries", "gpx/gpx_publish", "template", "docs", "deprecated", "subsections", "1623-and-1626-no-schoenberg-hs", "1623-and-1624-and-1626-and-1627", "1623-and-1626", "1623.svx", "1626.svx", "smk-system.svx"]
 # ignorenoncave = [
     # "caves-1623",
     # "caves-1623/2007-NEU",
@@ -255,6 +255,7 @@ class LoadingSurvex:
     rx_end2 = re.compile("(?i)end$")
     rx_title = re.compile(r"(?i)title$")
     rx_title2 = re.compile("(?i)title$")
+    rx_fix = re.compile(r"(?i)fix$")
     rx_ref = re.compile(r"(?i)ref$")
     rx_data = re.compile(r"(?i)data$")
     rx_flags = re.compile(r"(?i)flags$")
@@ -307,6 +308,7 @@ class LoadingSurvex:
 
     datastar = {}
     flagsstar = {}
+    fixes = {}
     units = "metres"
     unitsfactor = None
     slength = 0.0
@@ -356,7 +358,7 @@ class LoadingSurvex:
     def LoadSurvexFallThrough(self, survexblock, line, cmd):
         if cmd == "require":
             pass  # should we check survex version available for processing?
-        elif cmd in ["equate", "fix", "calibrate", "cs", "export", "case", "declination", "infer", "instrument", "sd"]:
+        elif cmd in ["equate", "calibrate", "cs", "export", "case", "declination", "infer", "instrument", "sd"]:
             pass  # we ignore all these, which is fine.
         else:
             if cmd in ["include", "data", "flags", "title", "entrance", "set", "units", "alias", "ref"]:
@@ -607,6 +609,34 @@ class LoadingSurvex:
                 parser="survex", message=message, url=None, sb=(survexblock.survexfile.path)
             )
 
+    def LoadSurvexFix(self, survexblock, line):
+        """*fix is a station geolocation, units depend on a previous *cs setting
+        """
+        #fixline = line.strip().replace("\t"," ").split(" ") # unpack tuples idiom in python 3
+        fixline =  re.match("(?i)\s*([\w\d_\.\-]+)\s+(?:reference)?\s*([\d\.]*)\s+([\d\.]*)\s+([\d\.]*)\s*(;.*)?$", line)
+        if not fixline:
+            message = f'BAD fix regex {line.replace(" ","|")} {survexblock.survexfile.path}:{survexblock}'
+            print(self.insp + message)
+            stash_data_issue(parser="survex", message=message)
+        else:
+            name, *fixdata = fixline.groups()
+            if name in self.fixes:
+                message = f"! Duplicate *FIX: id '{line}' ({survexblock}) {survexblock.survexfile.path}"
+                print(self.insp + message)
+                stash_data_issue(parser="survex", message=message)
+                
+                # do not store duplicates, they will be gpx/publish stuff
+                return
+                
+            try:
+                #_, _, alt, *rest = (fixdata + [None]*4)[:4]
+                _, _, alt, comment = fixdata
+                fixid = str(survexblock)+name
+                self.fixes[fixid] = (survexblock, alt, comment)
+            except:
+                print(f'BAD fix {name}, {fixdata=}\n{line.replace(" ","|")}\n{survexblock.survexfile.path}:{survexblock}', file=sys.stderr)
+             
+        
     def LoadSurvexEntrance(self, survexblock, line):
         # Not using this
         pass
@@ -1796,6 +1826,8 @@ class LoadingSurvex:
                 self.LoadSurvexEntrance(survexblock, args)
             elif self.rx_date.match(cmd):
                 self.LoadSurvexDate(survexblock, args)
+            elif self.rx_fix.match(cmd):
+                self.LoadSurvexFix(survexblock, args)
             elif self.rx_units.match(cmd):
                 self.LoadSurvexUnits(survexblock, args)
             elif self.rx_team.match(cmd):
@@ -2277,8 +2309,9 @@ def FindAndLoadSurvex():
     omit_scan.depthinclude = 0
     fullpathtotop = str(Path(settings.SURVEX_DATA, UNSEENS))
 
-    # copy the list to prime the next pass through the files
+    # copy the lists to prime the next pass through the files
     omit_scan.svxfileslist = svx_scan.svxfileslist[:]
+   
     svx_scan.svxfileslist = []  # free memory
     svx_scan = None  # Hmm. Does this actually delete all the instance variables if they are lists, dicts etc.?
 
@@ -2357,13 +2390,29 @@ def FindAndLoadSurvex():
     sys.stdout = stdout_orig
 
     legsnumber = svx_load.legsnumber
+    fixnumber = len(svx_load.fixes)
     mem1 = get_process_memory()
 
     print(f"  - Number of SurvexDirectories: {len(svx_load.svxprim):,}")
     tf = SurvexFile.objects.all().count() - len(removals)
     print(f"  - Number of SurvexFiles: {tf:,}")
+    print(f"  - Number of Survex *fix: {fixnumber:,}")
     print(f"  - Number of Survex legs: {legsnumber:,}")
+    
+    for f in svx_load.fixes:    
+        # why are we seeing no *fixes from fixedpts/gps18.svx etc. ? They are parsed !
+        survexblock, altitude, comment = svx_load.fixes[f]
+        if comment:
+            print(f"{a} {b} {comment}")
+            if re.match("(?i)[^s]*srtm[\s\S]*", comment.lower()):
+                print(f"{f} - {comment}")
+        else:
+            if str(f).startswith("162"):
+                print(f"{f} - {survexblock.survexfile}:{survexblock} - {altitude=}")
+        
     svx_load = None
+    
+    
 
     return legsnumber
 

templates/stations.html

@@ -112,6 +112,13 @@ Coordinate systems in Austria are explained in:<br>
 <a href="/stations">Troggle UTM and lat./lomg. and altitude report</a><br>
 <a href="/entrances">Troggle entrances</a><br>
 
+<h3>These stations have the altitude set equal to SRTM</h3>
+{% for s in stations %}
+{% if '>0<' in s.srtm_diff.0 %}
+{{s}} {{s.srtm_diff.0|safe}} ref={{s.srtm_diff.1|floatformat:0}} <br />
+{% endif %} 
+{% endfor %}
+
 <!-- 
 This script is added for ease of use.
 You can safely delete it.