class DescribeCrossingAtAlightEvent:
def __init__(self, gtfsdb_filename, timezone_name="America/Los_Angeles"):
self.gtfsdb = GTFSDatabase(gtfsdb_filename)
self.timezone_name = timezone_name
@staticmethod
def applies_to(vertex1, edge, vertex2):
# if the stop_sequence is the same before and after the TripAlight was crossed, it means the algorithm crossed in the forward
# direction - because the stop_sequence doesn't get set on a forward alight. If this is true then this is the appropriate time
# to describe the transit trip that led to this alighting
return edge is not None \
and isinstance(edge.payload, graphserver.core.TripAlight) \
and vertex1.state.stop_sequence == vertex2.state.stop_sequence
def __call__(self, vertex1, edge, vertex2, context):
stop_sequence_of_boarding = vertex1.state.stop_sequence
trip_id = vertex1.state.trip_id
alighting_trip_id, alighting_time, alighting_stop_sequences = edge.payload.get_alighting_by_trip_id(
trip_id)
what = "Ride trip %s from stop_seq %s to stop_seq %s" % (
trip_id, vertex1.state.stop_sequence, alighting_stop_sequences)
where = None
when = None
geom = self.gtfsdb.shape_between(trip_id, vertex1.state.stop_sequence,
alighting_stop_sequences)
return NarrativeEvent(what, where, when, geom)
class DescribeCrossingAtAlightEvent:
def __init__(self, gtfsdb_filename, timezone_name="America/Los_Angeles"):
self.gtfsdb = GTFSDatabase( gtfsdb_filename )
self.timezone_name = timezone_name
@staticmethod
def applies_to(vertex1, edge, vertex2):
# if the stop_sequence is the same before and after the TripAlight was crossed, it means the algorithm crossed in the forward
# direction - because the stop_sequence doesn't get set on a forward alight. If this is true then this is the appropriate time
# to describe the transit trip that led to this alighting
return edge is not None \
and isinstance(edge.payload, graphserver.core.TripAlight) \
and vertex1.state.stop_sequence == vertex2.state.stop_sequence
def __call__(self, vertex1, edge, vertex2, context):
stop_sequence_of_boarding = vertex1.state.stop_sequence
trip_id = vertex1.state.trip_id
alighting_trip_id, alighting_time, alighting_stop_sequences = edge.payload.get_alighting_by_trip_id( trip_id )
what = "Ride trip %s from stop_seq %s to stop_seq %s"%(trip_id, vertex1.state.stop_sequence, alighting_stop_sequences)
where = None
when = None
geom = self.gtfsdb.shape_between( trip_id, vertex1.state.stop_sequence, alighting_stop_sequences )
return NarrativeEvent(what, where, when, geom)