def update_position(self, timestamp, coords, isLate, progressFraction,
T_segment_avg, T_trip_avg, fields):
self.attrib['segment_actual'] = (timestamp -
self.attrib['t_segment_start']) / 60.
self.attrib['t_segment_stored'] = T_segment_avg / 60.
if T_trip_avg == 0:
lateFactor = 0.
else:
t_trip_late = self.attrib['duration_actual'] - T_trip_avg
lateFactor = max(0., t_trip_late) / self.attrib['duration_actual']
self.update_count += 1
self.attrib['isLate'] = isLate
self.attrib['t_late'] = max(
0., (timestamp - self.attrib['sched_arrival']) / 60.)
markerColor = _color_for_status(lateFactor)
markerAlpha = 1.0
if self.attrib['status'] == "inactive":
markerAlpha = 0.0
self.setPlotData(fields,\
[coords[0],\
coords[1],\
markerColor,\
float(12),\
markerAlpha,\
_make_string([(self['name'],["(unique id " + self['id'] + ")"]),\
("Time", [nice_time(timestamp, military=False)])]) +\
_make_table([\
["Approaching next stop:  ", station_names[self['next_stop']]],\
["Scheduled arrival  ", nice_time(self.attrib['sched_arrival'], military=False)],\
["Behind schedule by  ", "%.1f" % float(self.attrib['t_late']) + " mins"]]) +\
_make_table([\
["","actual","past performance"],\
["Time elapsed for this trip", "%.1f" % float(self.attrib['duration_actual']) + " mins", "%.1f" % float(T_trip_avg) + " mins"],\
["Time elapsed on this segment", "%.1f" % float(self.attrib['segment_actual']) + " mins", "%.1f" % float(progressFraction*T_segment_avg/60.) + " mins"]])
])
def update_position(self, timestamp, coords, isLate, progressFraction, T_segment_avg, T_trip_avg, fields):
self.attrib['segment_actual'] = (timestamp - self.attrib['t_segment_start'])/60.
self.attrib['t_segment_stored'] = T_segment_avg/60.
if T_trip_avg == 0:
lateFactor = 0.
else:
t_trip_late = self.attrib['duration_actual'] - T_trip_avg
lateFactor = max(0.,t_trip_late)/self.attrib['duration_actual']
self.update_count += 1
self.attrib['isLate'] = isLate
self.attrib['t_late'] = max(0.,(timestamp - self.attrib['sched_arrival'])/60.)
markerColor = _color_for_status(lateFactor)
markerAlpha = 1.0
if self.attrib['status'] == "inactive":
markerAlpha = 0.0
self.setPlotData(fields,\
[coords[0],\
coords[1],\
markerColor,\
float(12),\
markerAlpha,\
_make_string([(self['name'],["(unique id " + self['id'] + ")"]),\
("Time", [nice_time(timestamp, military=False)])]) +\
_make_table([\
["Approaching next stop:  ", station_names[self['next_stop']]],\
["Scheduled arrival  ", nice_time(self.attrib['sched_arrival'], military=False)],\
["Behind schedule by  ", "%.1f" % float(self.attrib['t_late']) + " mins"]]) +\
_make_table([\
["","actual","past performance"],\
["Time elapsed for this trip", "%.1f" % float(self.attrib['duration_actual']) + " mins", "%.1f" % float(T_trip_avg) + " mins"],\
["Time elapsed on this segment", "%.1f" % float(self.attrib['segment_actual']) + " mins", "%.1f" % float(progressFraction*T_segment_avg/60.) + " mins"]])
])
def run(self, use_T0=None):
self.T = time.time()
if use_T0:
self.T = use_T0
self.Tend = self.T + self.Tend
T_last_update = 0.
T_last_plot = 0.
initPlot = False
while self.T < self.Tend:
if not initPlot:
self.plotMgr.init_area(self.mgr.plot_boundaries())
initPlot = True
if self.T - T_last_update > self.updateDataInterval:
T_last_update = self.T
t_update, updateDF = self.streamMgr.read(self.T, self.T+self.updateDataInterval)
if len(updateDF)>0:
self.mgr.streamUpdate(updateDF)
else:
print "Skipped processing DF of length ZERO"
t_lag = time.time() - t_update
print nice_time(t_update), nice_time(self.T), "lag between current wall-clock time and real-time feed update:","%.1f" % t_lag, "seconds"
self.T = time.time()
if self.T - T_last_plot > self.refreshPlotInterval:
t_plot = t_update + self.T - T_last_update
self.mgr.evolve(t_plot, t_update)
stationData, trainData, routeData, fields, hoverFields = self.mgr.drawSystem(t_plot)
scatterData = pd.concat([stationData, trainData], axis=0)
self.plotMgr.plot(scatterData, routeData, fields, hoverFields, t_plot)
T_last_plot = self.T
#time.sleep((1./self.acceleration)*self.refreshPlotInterval)
self.T = time.time()#t_plot + self.refreshPlotInterval
def _purgeStalled(self, t_current, t_wait_mins):
for train_id in self.activeTrains.keys():
t_last_update = self.activeTrains[train_id].attrib['time_of_update']
if (t_current - t_last_update)/60. > t_wait_mins:
routeID = self.activeTrains[train_id].attrib['routeID']
print nice_time(t_current), "Purging stalled train",train_id, "after", (t_current-t_last_update)/60.,"mins inactive on route",routeID
self._getRoute(train_id, routeID).clearTrain(train_id, t_current)
self.activeTrains.pop(train_id)
self.drawTrainData = self.drawTrainData.drop(train_id, axis=0)
def _purgeStalled(self, t_current, t_wait_mins):
for train_id in self.activeTrains.keys():
t_last_update = self.activeTrains[train_id].attrib[
'time_of_update']
if (t_current - t_last_update) / 60. > t_wait_mins:
routeID = self.activeTrains[train_id].attrib['routeID']
print nice_time(
t_current), "Purging stalled train", train_id, "after", (
t_current -
t_last_update) / 60., "mins inactive on route", routeID
self._getRoute(train_id,
routeID).clearTrain(train_id, t_current)
self.activeTrains.pop(train_id)
self.drawTrainData = self.drawTrainData.drop(train_id, axis=0)
def _listApproaching(self, t_now):
strings = []
t_late = 0.
for (ll,dd) in self.routes.keys():
trainsDict = self.routes[(ll,dd)]
listTrains = "; ".join([nice_time(t[1], military=False) for t in trainsDict.values()])
for t_data in trainsDict.values():
t_late = t_late + max(0., t_now-t_data[1])
direction_tag = {"N":"Uptown","S":"Downtown"}
if len(listTrains) > 0:
strings.append((str(ll) + " " + direction_tag[dd] + " due", listTrains))
return t_late, strings
def updateProgress(self, timestamp, fields):
t_late_approaching, trains_approaching_string = self._listApproaching(timestamp)
self.setPlotData(fields=fields,\
data=[float(self.attrib['lon']),\
float(self.attrib['lat']),\
_stop_color_for_status(t_late_approaching/60.),\
float(7),\
float(1.0),\
_make_string([("Station", [str(self['name'])]),\
("Time", [nice_time(time.time(), military=False)]),\
("Trains approaching", trains_approaching_string),\
("Arrival Stats", [""])]) +\
_make_table(self._listStopData(timestamp))])
def _listApproaching(self, t_now):
strings = []
t_late = 0.
for (ll, dd) in self.routes.keys():
trainsDict = self.routes[(ll, dd)]
listTrains = "; ".join(
[nice_time(t[1], military=False) for t in trainsDict.values()])
for t_data in trainsDict.values():
t_late = t_late + max(0., t_now - t_data[1])
direction_tag = {"N": "Uptown", "S": "Downtown"}
if len(listTrains) > 0:
strings.append(
(str(ll) + " " + direction_tag[dd] + " due", listTrains))
return t_late, strings
def updateProgress(self, timestamp, fields):
t_late_approaching, trains_approaching_string = self._listApproaching(
timestamp)
self.setPlotData(fields=fields,\
data=[float(self.attrib['lon']),\
float(self.attrib['lat']),\
_stop_color_for_status(t_late_approaching/60.),\
float(7),\
float(1.0),\
_make_string([("Station", [str(self['name'])]),\
("Time", [nice_time(time.time(), military=False)]),\
("Trains approaching", trains_approaching_string),\
("Arrival Stats", [""])]) +\
_make_table(self._listStopData(timestamp))])