/usr/share/sumo/tools/traci/lane.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 lane.py
@author Michael Behrisch
@author Daniel Krajzewicz
@date 2011-03-17
@version $Id: lane.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) 2011 DLR (http://www.dlr.de/) and contributors
All rights reserved
"""
import struct, traci
import traci.constants as tc
def _readLinks(result):
result.read("!Bi") # Type Compound, Length
nbLinks = result.readInt()
links = []
for i in range(nbLinks):
result.read("!B") # Type String
approachedLane = result.readString()
result.read("!B") # Type String
approachedInternal = result.readString()
result.read("!B") # Type Byte
hasPrio = bool(result.read("!B"))
result.read("!B") # Type Byte
isOpen = bool(result.read("!B"))
result.read("!B") # Type Byte
hasFoe = bool(result.read("!B"))
result.read("!B") # Type String
state = result.readString() #not implemented
result.read("!B") # Type String
direction = result.readString() #not implemented
result.read("!B") # Type Float
length = result.readDouble()
links.append((approachedLane, hasPrio, isOpen, hasFoe))
return links
_RETURN_VALUE_FUNC = {tc.ID_LIST: traci.Storage.readStringList,
tc.VAR_LENGTH: traci.Storage.readDouble,
tc.VAR_MAXSPEED: traci.Storage.readDouble,
tc.VAR_WIDTH: traci.Storage.readDouble,
tc.LANE_ALLOWED: traci.Storage.readStringList,
tc.LANE_DISALLOWED: traci.Storage.readStringList,
tc.LANE_LINK_NUMBER: lambda(result): result.read("!B")[0],
tc.LANE_LINKS: _readLinks,
tc.VAR_SHAPE: traci.Storage.readShape,
tc.LANE_EDGE_ID: traci.Storage.readString,
tc.VAR_CO2EMISSION: traci.Storage.readDouble,
tc.VAR_COEMISSION: traci.Storage.readDouble,
tc.VAR_HCEMISSION: traci.Storage.readDouble,
tc.VAR_PMXEMISSION: traci.Storage.readDouble,
tc.VAR_NOXEMISSION: traci.Storage.readDouble,
tc.VAR_FUELCONSUMPTION: traci.Storage.readDouble,
tc.VAR_NOISEEMISSION: traci.Storage.readDouble,
tc.LAST_STEP_MEAN_SPEED: traci.Storage.readDouble,
tc.LAST_STEP_OCCUPANCY: traci.Storage.readDouble,
tc.LAST_STEP_LENGTH: traci.Storage.readDouble,
tc.VAR_CURRENT_TRAVELTIME: traci.Storage.readDouble,
tc.LAST_STEP_VEHICLE_NUMBER: traci.Storage.readInt,
tc.LAST_STEP_VEHICLE_HALTING_NUMBER: traci.Storage.readInt,
tc.LAST_STEP_VEHICLE_ID_LIST: traci.Storage.readStringList}
subscriptionResults = {}
def _getUniversal(varID, laneID):
result = traci._sendReadOneStringCmd(tc.CMD_GET_LANE_VARIABLE, varID, laneID)
return _RETURN_VALUE_FUNC[varID](result)
def getIDList():
"""getIDList() -> list(string)
Returns a list of all lanes in the network.
"""
return _getUniversal(tc.ID_LIST, "")
def getLength(laneID):
"""getLength(string) -> double
.
"""
return _getUniversal(tc.VAR_LENGTH, laneID)
def getMaxSpeed(laneID):
"""getMaxSpeed(string) -> double
.
"""
return _getUniversal(tc.VAR_MAXSPEED, laneID)
def getWidth(laneID):
"""getWidth(string) -> double
.
"""
return _getUniversal(tc.VAR_WIDTH, laneID)
def getAllowed(laneID):
"""getAllowed(string) -> list(string)
.
"""
return _getUniversal(tc.LANE_ALLOWED, laneID)
def getDisallowed(laneID):
"""getDisallowed(string) -> list(string)
.
"""
return _getUniversal(tc.LANE_DISALLOWED, laneID)
def getLinkNumber(laneID):
"""getLinkNumber(string) -> integer
.
"""
return _getUniversal(tc.LANE_LINK_NUMBER, laneID)
def getLinks(laneID):
"""getLinks(string) ->
.
"""
return _getUniversal(tc.LANE_LINKS, laneID)
def getShape(laneID):
"""getShape(string) -> list((double, double))
.
"""
return _getUniversal(tc.VAR_SHAPE, laneID)
def getEdgeID(laneID):
"""getEdgeID(string) -> string
.
"""
return _getUniversal(tc.LANE_EDGE_ID, laneID)
def getCO2Emission(laneID):
"""getCO2Emission(string) -> double
Returns the CO2 emission in mg for the last time step on the given lane.
"""
return _getUniversal(tc.VAR_CO2EMISSION, laneID)
def getCOEmission(laneID):
"""getCOEmission(string) -> double
Returns the CO emission in mg for the last time step on the given lane.
"""
return _getUniversal(tc.VAR_COEMISSION, laneID)
def getHCEmission(laneID):
"""getHCEmission(string) -> double
Returns the HC emission in mg for the last time step on the given lane.
"""
return _getUniversal(tc.VAR_HCEMISSION, laneID)
def getPMxEmission(laneID):
"""getPMxEmission(string) -> double
Returns the particular matter emission in mg for the last time step on the given lane.
"""
return _getUniversal(tc.VAR_PMXEMISSION, laneID)
def getNOxEmission(laneID):
"""getNOxEmission(string) -> double
Returns the NOx emission in mg for the last time step on the given lane.
"""
return _getUniversal(tc.VAR_NOXEMISSION, laneID)
def getFuelConsumption(laneID):
"""getFuelConsumption(string) -> double
Returns the fuel consumption in ml for the last time step on the given lane.
"""
return _getUniversal(tc.VAR_FUELCONSUMPTION, laneID)
def getNoiseEmission(laneID):
"""getNoiseEmission(string) -> double
Returns the noise emission in db for the last time step on the given lane.
"""
return _getUniversal(tc.VAR_NOISEEMISSION, laneID)
def getLastStepMeanSpeed(laneID):
"""getLastStepMeanSpeed(string) -> double
Returns the average speed in m/s for the last time step on the given lane.
"""
return _getUniversal(tc.LAST_STEP_MEAN_SPEED, laneID)
def getLastStepOccupancy(laneID):
"""getLastStepOccupancy(string) -> double
Returns the occupancy in % for the last time step on the given lane.
"""
return _getUniversal(tc.LAST_STEP_OCCUPANCY, laneID)
def getLastStepLength(laneID):
"""getLastStepLength(string) -> double
Returns the total vehicle length in m for the last time step on the given lane.
"""
return _getUniversal(tc.LAST_STEP_LENGTH, laneID)
def getTraveltime(laneID):
"""getTraveltime(string) -> double
Returns the estimated travel time in s for the last time step on the given lane.
"""
return _getUniversal(tc.VAR_CURRENT_TRAVELTIME, laneID)
def getLastStepVehicleNumber(laneID):
"""getLastStepVehicleNumber(string) -> integer
Returns the total number of vehicles for the last time step on the given lane.
"""
return _getUniversal(tc.LAST_STEP_VEHICLE_NUMBER, laneID)
def getLastStepHaltingNumber(laneID):
"""getLastStepHaltingNumber(string) -> integer
Returns the total number of halting vehicles for the last time step on the given lane.
A speed of less than 0.1 m/s is considered a halt.
"""
return _getUniversal(tc.LAST_STEP_VEHICLE_HALTING_NUMBER, laneID)
def getLastStepVehicleIDs(laneID):
"""getLastStepVehicleIDs(string) -> list(string)
Returns the ids of the vehicles for the last time step on the given lane.
"""
return _getUniversal(tc.LAST_STEP_VEHICLE_ID_LIST, laneID)
def subscribe(laneID, varIDs=(tc.LAST_STEP_VEHICLE_NUMBER,), begin=0, end=2**31-1):
"""subscribe(string, list(integer), double, double) -> None
Subscribe to one or more lane values for the given interval.
A call to this method clears all previous subscription results.
"""
_resetSubscriptionResults()
traci._subscribe(tc.CMD_SUBSCRIBE_LANE_VARIABLE, begin, end, laneID, varIDs)
def _resetSubscriptionResults():
subscriptionResults.clear()
def _addSubscriptionResult(laneID, varID, data):
if laneID not in subscriptionResults:
subscriptionResults[laneID] = {}
subscriptionResults[laneID][varID] = _RETURN_VALUE_FUNC[varID](data)
def getSubscriptionResults(laneID=None):
"""getSubscriptionResults(string) -> dict(integer: <value_type>)
Returns the subscription results for the last time step and the given lane.
If no lane id is given, all subscription results are returned in a dict.
If the lane 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 laneID == None:
return subscriptionResults
return subscriptionResults.get(laneID, None)
def setAllowed(laneID, allowedClasses):
traci._beginMessage(tc.CMD_SET_LANE_VARIABLE, tc.LANE_ALLOWED, laneID, 1+4+sum(map(len, allowedClasses))+4*len(allowedClasses))
traci._message.string += struct.pack("!Bi", tc.TYPE_STRINGLIST, len(allowedClasses))
for c in allowedClasses:
traci._message.string += struct.pack("!i", len(c)) + c
traci._sendExact()
def setDisallowed(laneID, disallowedClasses):
traci._beginMessage(tc.CMD_SET_LANE_VARIABLE, tc.LANE_DISALLOWED, laneID, 1+4+sum(map(len, disallowedClasses))+4*len(disallowedClasses))
traci._message.string += struct.pack("!Bi", tc.TYPE_STRINGLIST, len(disallowedClasses))
for c in disallowedClasses:
traci._message.string += struct.pack("!i", len(c)) + c
traci._sendExact()
def setMaxSpeed(laneID, speed):
traci._sendDoubleCmd(tc.CMD_SET_LANE_VARIABLE, tc.VAR_MAXSPEED, laneID, speed)
def setLength(laneID, length):
traci._sendDoubleCmd(tc.CMD_SET_LANE_VARIABLE, tc.VAR_LENGTH, laneID, length)
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