bugfix

floenavi/__init__.py

@@ -706,7 +706,7 @@ class FloeNaviGrid(object):
             else:
                 self.basestation_dict[mmsi].append(pos)
 
-    def get_virtual_reference_station_positions(self, time_resolution_sec=10.0, **refstat_kwargs):
+    def get_virtual_reference_station_positions(self, time_resolution_sec=10, **refstat_kwargs):
         """
         Compute the position objects of two virtual reference stations, based on the number of available
         basestations. This is primary input for the icedrift correction in the icedrift module.
@@ -718,8 +718,8 @@ class FloeNaviGrid(object):
         # Compute common timestamp
         logger.info("Compute timestamp of virtual base stations [resolution: %.2f sec]" % time_resolution_sec)
         duration_seconds = (self.time_bounds[1]-self.time_bounds[0]).seconds
-        seconds_increments = np.arange(0, duration_seconds+time_resolution_sec, time_resolution_sec).astype(int)
-        time = np.array([self.time_bounds[0]+timedelta(seconds=sec) for sec in seconds_increments])
+        seconds_increments = np.arange(0, duration_seconds+time_resolution_sec, time_resolution_sec)
+        time = np.array([self.time_bounds[0]+timedelta(seconds=int(sec)) for sec in seconds_increments])
 
         # Create a collection of all base stations
         # NOTE: Making sure all base stations have the same temporal resolutions