Initial

plot_timeutils.py

@@ -0,0 +1,39 @@
+#!/usr/bin/python3
+from config_parse import CFG
+from datetime import datetime, timedelta
+
+def between_dates(t,date1,date2):
+        return t if (date1 == None or date1 < t) and (date2 == None or date2 > t) else None
+
+def time_from_dbf(l,timeformat):
+        timeformat=None #dont need that here
+        offset_d = datetime(1970,1,1)-datetime(1900,1,1)
+        shit_epoch = l*24*60*60 #days to seconds
+        unix_epoch = datetime.fromtimestamp(shit_epoch)-offset_d
+        return (unix_epoch-timedelta(days=2)+timedelta(hours=CFG("add_hours_to_input"))).replace(microsecond=0)
+
+def time_from_csv(l,timeformat):
+        return datetime.strptime(l,timeformat)
+
+def unix(dt):
+    return dt.timestamp()
+
+def round_time_to_step(start,step):
+        start  += step / 2
+        discard = timedelta(days=0)
+        hround  = int(step.seconds/3600)
+        mround  = int(step.seconds/60)
+        if step >= timedelta(days=1):
+                discard = timedelta(days=start.day % step.days,hours=start.hour,minutes=start.minute,seconds=start.second)        
+        elif step >= timedelta(hours=1):
+                if hround != 0:
+                    discard = timedelta(hours=start.hour % hround,minutes=start.minute,seconds=start.second) 
+        elif step >= timedelta(minutes=1):
+                if mround != 0:
+                    discard = timedelta(minutes=start.minute % mround,seconds=start.second)
+        elif step >= timedelta(seconds=1):
+                    discard = timedelta(seconds=start.second % step.seconds)
+        else:
+                raise ValueError("Rounding time failed, this actually should be impossible. wtf. ("+str(start)+","+str(step)+","+str(discard)+")")
+        start -= discard
+        return start