def stoptime( request, id ):
stoptime = StopTime.objects.get(pk=id)
runs = VehicleUpdate.runs( stoptime.trip_id )
events = []
for run in runs:
for vu1, vu2 in cons( run.vps ):
if vu1.percent_along_trip <= stoptime.percent_along_trip and \
vu2.percent_along_trip >= stoptime.percent_along_trip:
dt = vu2.data_timestamp - vu1.data_timestamp
ds = vu2.percent_along_trip - vu1.percent_along_trip
ds_prime = stoptime.percent_along_trip - vu1.percent_along_trip
if ds == 0:
percent_of_interval = 1
else:
percent_of_interval = ds_prime/ds
interpolated_time = percent_of_interval*dt + vu1.data_timestamp
events.append( {'vu1':vu1, 'vu2':vu2, 'time':datetime.fromtimestamp(interpolated_time),'timestamp':interpolated_time} )
#meantime = sum([x['timestamp'] for x in events])/len(events)
#stddev = find_stddev( [x['timestamp'] for x in events] )
return HttpResponse( render_to_response( "stoptime.html", {'stoptime':stoptime, 'events':events} ) )
def run(request, trip_id, start_date):
run = VehicleUpdate.runs( trip_id, start_date )[0]
trip = run.trip
stoptimes = trip.stoptime_set.all().order_by('departure_time').select_related( 'stop' )
shape = trip.shape
run.set_vehicle_position_deviation_metadata( shape, stoptimes )
return render_to_response( 'run.html', {'vps':run.vps} )
def run(request, trip_id, start_date):
run = VehicleUpdate.runs(trip_id, start_date)[0]
trip = run.trip
stoptimes = trip.stoptime_set.all().order_by(
'departure_time').select_related('stop')
shape = trip.shape
run.set_vehicle_position_deviation_metadata(shape, stoptimes)
return render_to_response('run.html', {'vps': run.vps})
def stoptime(request, id):
stoptime = StopTime.objects.get(pk=id)
runs = VehicleUpdate.runs(stoptime.trip_id)
events = []
for run in runs:
for vu1, vu2 in cons(run.vps):
if vu1.percent_along_trip <= stoptime.percent_along_trip and \
vu2.percent_along_trip >= stoptime.percent_along_trip:
dt = vu2.data_timestamp - vu1.data_timestamp
ds = vu2.percent_along_trip - vu1.percent_along_trip
ds_prime = stoptime.percent_along_trip - vu1.percent_along_trip
if ds == 0:
percent_of_interval = 1
else:
percent_of_interval = ds_prime / ds
interpolated_time = percent_of_interval * dt + vu1.data_timestamp
events.append({
'vu1': vu1,
'vu2': vu2,
'time': datetime.fromtimestamp(interpolated_time),
'timestamp': interpolated_time
})
#meantime = sum([x['timestamp'] for x in events])/len(events)
#stddev = find_stddev( [x['timestamp'] for x in events] )
return HttpResponse(
render_to_response("stoptime.html", {
'stoptime': stoptime,
'events': events
}))
