/usr/share/sumo/tools/traci/route.py is in sumo-tools 0.15.0~dfsg-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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"""
@file route.py
@author Michael Behrisch
@author Lena Kalleske
@date 2008-10-09
@version $Id: route.py 11671 2012-01-07 20:14:30Z behrisch $
Python implementation of the TraCI interface.
SUMO, Simulation of Urban MObility; see http://sumo.sourceforge.net/
Copyright (C) 2008-2012 DLR (http://www.dlr.de/) and contributors
All rights reserved
"""
import traci, struct
import traci.constants as tc
_RETURN_VALUE_FUNC = {tc.ID_LIST: traci.Storage.readStringList,
tc.VAR_EDGES: traci.Storage.readStringList}
subscriptionResults = {}
def _getUniversal(varID, routeID):
result = traci._sendReadOneStringCmd(tc.CMD_GET_ROUTE_VARIABLE, varID, routeID)
return _RETURN_VALUE_FUNC[varID](result)
def getIDList():
"""getIDList() -> list(string)
Returns a list of all routes in the network.
"""
return _getUniversal(tc.ID_LIST, "")
def getEdges(routeID):
"""getEdges(string) -> list(string)
Returns a list of all edges in the route.
"""
return _getUniversal(tc.VAR_EDGES, routeID)
def subscribe(routeID, varIDs=(tc.ID_LIST,), begin=0, end=2**31-1):
"""subscribe(string, list(integer), double, double) -> None
Subscribe to one or more route values for the given interval.
A call to this method clears all previous subscription results.
"""
_resetSubscriptionResults()
traci._subscribe(tc.CMD_SUBSCRIBE_ROUTE_VARIABLE, begin, end, routeID, varIDs)
def _resetSubscriptionResults():
subscriptionResults.clear()
def _addSubscriptionResult(routeID, varID, data):
if routeID not in subscriptionResults:
subscriptionResults[routeID] = {}
subscriptionResults[routeID][varID] = _RETURN_VALUE_FUNC[varID](data)
def getSubscriptionResults(routeID=None):
"""getSubscriptionResults(string) -> dict(integer: <value_type>)
Returns the subscription results for the last time step and the given route.
If no route id is given, all subscription results are returned in a dict.
If the route id is unknown or the subscription did for any reason return no data,
'None' is returned.
It is not possible to retrieve older subscription results than the ones
from the last time step.
"""
if routeID == None:
return subscriptionResults
return subscriptionResults.get(routeID, None)
def add(routeID, edges):
traci._beginMessage(tc.CMD_SET_ROUTE_VARIABLE, tc.ADD, routeID,
1+4+sum(map(len, edges))+4*len(edges))
traci._message.string += struct.pack("!Bi", tc.TYPE_STRINGLIST, len(edges))
for e in edges:
traci._message.string += struct.pack("!i", len(e)) + e
traci._sendExact()
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