Hello, I am implementing a project (Dynamic Street Lighting system) in SUMO in which I need to change the color of the lamp(POI) when a vehicle is detected in it's vicinity. How do I do so?
Also, I am trying to retrieve values of the vehicles from the simulation but I am not getting any result. I have randomly generated vehicles in a *.rou.xml file* (using Python)
In the Python code In *traci.start()* I have added my sumocfg file in which the route file has been given as input tag and in *subprocess.call()* i have added the *.net.xml* file still vehicles' values are not retrieved for traci.vehicle.IDList() but it is working for traci.poi.getColor. Why is this so?
#!/usr/bin/env python
# Copyright (C) 2009-2017 German Aerospace Center (DLR) and others.
# This program and the accompanying materials
# are made available under the terms of the Eclipse Public License v2.0
# which accompanies this distribution, and is available at
from __future__ import absolute_import
from __future__ import print_function
import struct
import os
import sys
import optparse
import subprocess
import random
import warnings
# we need to import python modules from the $SUMO_HOME/tools directory
try:
sys.path.append(os.path.join(os.path.dirname(
__file__), '..', '..', '..', '..', "tools")) # tutorial in tests
sys.path.append(os.path.join(os.environ.get("SUMO_HOME", os.path.join(
os.path.dirname(__file__), "..", "..", "..")), "tools")) # tutorial in docs
from sumolib import checkBinary # noqa
import randomTrips
except ImportError:
sys.exit(
"please declare environment variable 'SUMO_HOME'")
import traci
import sumolib
def generate_routefile():
random.seed(42) # make tests reproducible
N = 200 # number of time steps
# demand per second from different directions
pWE = 1. / 10
pEW = 1. / 11
## pNS = 1. / 30
with open("tp.rou.xml", "w") as routes:
print("""<routes>
<vType id="Car" accel="1.0" decel="5.0" sigma="0" length="5.0" minGap="2.0" maxSpeed="50.0"/>
<route id="route0" edges="2to1"/>
<route id="route1" edges="1to2"/>""", file=routes)
lastVeh = 0
vehNr = 0
for i in range(N):
if random.uniform(0, 1) < pWE:
print(' <vehicle id="right_%i" type="Car" route="route1" depart="%i" />' % (
vehNr, i), file=routes)
vehNr += 1
lastVeh = i
if random.uniform(0, 1) < pEW:
print(' <vehicle id="left_%i" type="Car" route="route0" depart="%i" />' % (
vehNr, i), file=routes)
vehNr += 1
lastVeh = i
print("</routes>", file=routes)
def run():
while traci.simulation.getMinExpectedNumber() > 0:
traci.simulationStep()
print("hello")
print(traci.poi.getColor("1"))
print(traci.poi.setColor("1",[0,0,255,255]))
print(traci.poi.getColor("2"))
print(traci.poi.setColor("2",[255,0,0,255]))
print(traci.vehicle.getIDList())
vehicles = traci.simulation.getDepartedIDList()
print("ID of vehicles are:")
for i in range(len(vehicles)):
print(vehicles[i])
print(traci.vehicle.getSpeed("left_0")) #error vehicle not known
traci.close()
sys.stdout.flush()
def get_options():
optParser = optparse.OptionParser()
optParser.add_option("--nogui"
, action=""> default=False, help="run the commandline version of sumo")
options, args = optParser.parse_args()
return options
# this is the main entry point of this script
if __name__ == "__main__":
options = get_options()
# this script has been called from the command line. It will start sumo as a
# server, then connect and run
if options.nogui:
sumoBinary = checkBinary('sumo')
else:
sumoBinary = checkBinary('sumo-gui')
net = 'tp.net.xml'
subprocess.call([checkBinary('netconvert'),
'-c', 'tp.net.xml',
'--output-file', net])
randomTrips.main(randomTrips.get_options([
'--net-file', net]))
generate_routefile()
traci.start([sumoBinary, "-c", "tp.sumocfg",
"--tripinfo-output", "tripinfo.xml"])
run()
Also how should i approach the detection of vehicle under the POI's vicinity?
