/usr/share/sumo/tools/traci/inductionloop.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.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 | # -*- coding: utf-8 -*-
"""
@file inductionloop.py
@author Michael Behrisch
@author Daniel Krajzewicz
@date 2011-03-16
@version $Id: inductionloop.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 traci
import traci.constants as tc
def readVehicleData(result):
result.readLength()
nbData = result.readInt()
data = []
for i in range(nbData):
result.read("!B")
vehID = result.readString()
result.read("!B")
length = result.readDouble()
result.read("!B")
entryTime = result.readDouble()
result.read("!B")
leaveTime = result.readDouble()
result.read("!B")
typeID = result.readString()
data.append( [ vehID, length, entryTime, leaveTime, typeID ] )
return data
_RETURN_VALUE_FUNC = {tc.ID_LIST: traci.Storage.readStringList,
tc.VAR_POSITION: traci.Storage.readDouble,
tc.VAR_LANE_ID: traci.Storage.readString,
tc.LAST_STEP_VEHICLE_NUMBER: traci.Storage.readInt,
tc.LAST_STEP_MEAN_SPEED: traci.Storage.readDouble,
tc.LAST_STEP_VEHICLE_ID_LIST: traci.Storage.readStringList,
tc.LAST_STEP_OCCUPANCY: traci.Storage.readDouble,
tc.LAST_STEP_LENGTH: traci.Storage.readDouble,
tc.LAST_STEP_TIME_SINCE_DETECTION: traci.Storage.readDouble,
tc.LAST_STEP_VEHICLE_DATA: readVehicleData}
subscriptionResults = {}
def _getUniversal(varID, loopID):
result = traci._sendReadOneStringCmd(tc.CMD_GET_INDUCTIONLOOP_VARIABLE, varID, loopID)
return _RETURN_VALUE_FUNC[varID](result)
def getIDList():
"""getIDList() -> list(string)
Returns a list of all induction loops in the network.
"""
return _getUniversal(tc.ID_LIST, "")
def getPosition(loopID):
"""getPosition(string) -> double
Returns the position measured from the beginning of the lane.
"""
return _getUniversal(tc.VAR_POSITION, loopID)
def getLaneID(loopID):
"""getLaneID(string) -> string
Returns the id of the lane the loop is on.
"""
return _getUniversal(tc.VAR_LANE_ID, loopID)
def getLastStepVehicleNumber(loopID):
"""getLastStepVehicleNumber(string) -> integer
.
"""
return _getUniversal(tc.LAST_STEP_VEHICLE_NUMBER, loopID)
def getLastStepMeanSpeed(loopID):
"""getLastStepMeanSpeed(string) -> double
.
"""
return _getUniversal(tc.LAST_STEP_MEAN_SPEED, loopID)
def getLastStepVehicleIDs(loopID):
"""getLastStepVehicleIDs(string) -> list(string)
.
"""
return _getUniversal(tc.LAST_STEP_VEHICLE_ID_LIST, loopID)
def getLastStepOccupancy(loopID):
"""getLastStepOccupancy(string) -> double
.
"""
return _getUniversal(tc.LAST_STEP_OCCUPANCY, loopID)
def getLastStepMeanLength(loopID):
"""getLastStepMeanLength(string) -> double
.
"""
return _getUniversal(tc.LAST_STEP_LENGTH, loopID)
def getTimeSinceDetection(loopID):
"""getTimeSinceDetection(string) -> double
.
"""
return _getUniversal(tc.LAST_STEP_TIME_SINCE_DETECTION, loopID)
def getVehicleData(loopID):
"""getVehicleData(string) -> integer
.
"""
return _getUniversal(tc.LAST_STEP_VEHICLE_DATA, loopID)
def subscribe(loopID, varIDs=(tc.LAST_STEP_VEHICLE_NUMBER,), begin=0, end=2**31-1):
"""subscribe(string, list(integer), double, double) -> None
Subscribe to one or more induction loop values for the given interval.
A call to this method clears all previous subscription results.
"""
_resetSubscriptionResults()
traci._subscribe(tc.CMD_SUBSCRIBE_INDUCTIONLOOP_VARIABLE, begin, end, loopID, varIDs)
def _resetSubscriptionResults():
subscriptionResults.clear()
def _addSubscriptionResult(loopID, varID, data):
if loopID not in subscriptionResults:
subscriptionResults[loopID] = {}
subscriptionResults[loopID][varID] = _RETURN_VALUE_FUNC[varID](data)
def getSubscriptionResults(loopID=None):
"""getSubscriptionResults(string) -> dict(integer: <value_type>)
Returns the subscription results for the last time step and the given loop.
If no loop id is given, all subscription results are returned in a dict.
If the loop 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 loopID == None:
return subscriptionResults
return subscriptionResults.get(loopID, None)
|