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Calculate end id

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Konstantin Gründger 2016-07-03 09:56:02 +02:00
rodzic 634e196f1e
commit acd606aa2e
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ogn/collect/takeoff_landing.py
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@ -52,9 +52,9 @@ def compute_takeoff_and_landing(session=None):
airport_radius = 0.025 # takeoff / landing must not exceed this radius (degree!) around the airport
airport_delta = 100 # takeoff / landing must not exceed this altitude offset above/below the airport
# AircraftBeacon start id and max id offset
# AircraftBeacon start id and end id
aircraft_beacon_start_id = get_aircraft_beacon_start_id(session)
max_id_offset = 500000
aircraft_beacon_end_id = aircraft_beacon_start_id + 500000
# 'wo' is the window order for the sql window function
wo = and_(AircraftBeacon.device_id, AircraftBeacon.timestamp)
@ -80,7 +80,7 @@ def compute_takeoff_and_landing(session=None):
AircraftBeacon.device_id,
func.lag(AircraftBeacon.device_id).over(order_by=wo).label('device_id_prev'),
func.lead(AircraftBeacon.device_id).over(order_by=wo).label('device_id_next')) \
.filter(between(AircraftBeacon.id, aircraft_beacon_start_id, aircraft_beacon_start_id + max_id_offset)) \
.filter(between(AircraftBeacon.id, aircraft_beacon_start_id, aircraft_beacon_end_id)) \
.subquery()
# find possible takeoffs and landings