lib/xmet/hodograph.py

@@ -165,6 +165,9 @@ class Hodograph():
 
     def each_significant_sample(self, sounding: Sounding):
         for sample in sounding.samples:
+            if sample.pressure < 0 or sample.pressure is None:
+                continue
+
             if sample.height is None:
                 continue
 

lib/xmet/sounding.py

@@ -82,18 +82,6 @@ class Sounding(DatabaseTable):
         'data_source_pressure', 'data_source_other', 'samples', 'location'
     )
 
-    def __str__(self):
-        parts = [
-            f"Sounding from station {self.station}"
-        ]
-
-        if self.location is not None:
-            parts.append(f"(location {self.location})")
-
-        parts.append(f"observed {self.timestamp_observed}")
-
-        return ' '.join(parts)
-
     __table__ = 'xmet_sounding'
     __key__   = 'id'
 
@@ -129,8 +117,7 @@ class Sounding(DatabaseTable):
 
     def __init__(self):
         super().__init__()
-        self.id       = None
+        self.id = None
-        self.location = None
 
     @staticmethod
     def valid_by_station(db: Database,