Dear Sir,
I have managed to write the code to subscribe for junction i.e. When
vehicle reach at the junction color of the vehicle will change.
Issue : But it changes color when it reach to the last subscribed junction.
My aim is to change color at all the junction.
> *def run():** """execute the TraCI control loop"""*
>
> * step = 0*
> * while traci.simulation.getMinExpectedNumber() > 0:*
> * traci.simulationStep()*
>
>
>
> * if(str(traci.junction.getContextSubscriptionResults(junctionID))
> != "None"): dict =
> traci.junction.getContextSubscriptionResults(junctionID) key,
> value = dict.items()[0] #Here Key is Vehicle Id and Value is Speed at
> junnction traci.vehicle.setColor(key, (255,0,0))*
> * step += 1*
> * traci.close()** sys.stdout.flush()*
>
>
> *def generate_routefile():*
> * # Code for printing to a file** sample =
> open('dijkstra_000.rou.xml', 'w')*
>
> * print("""<routes>*
> * <vType id="vehicle1" accel="0.8" decel="4.5" sigma="0.5"
> length="5" minGap="2.5" maxSpeed="16.67" guiShape="passenger"/>*
> * <flow id="Car" begin="0" end="3600" number="100" from="1"
> to="18"/> </routes>""", file = sample)** sample.close()*
>
>
> *def get_options():*
> * optParser = optparse.OptionParser()*
> * optParser.add_option("--nogui", action="store_true",*
> * 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')** generate_routefile()*
>
> * # this is the normal way of using traci. sumo is started as a*
> * # subprocess and then the python script connects and runs**
> traci.start([sumoBinary, "-c", "dijkstra.sumo.cfg", "--tripinfo-output",
> "tripinfo.xml","--device.emissions.probability","1","--emission-output","emmission_aco.xml"])*
>
>
>
>
>
> * JunctioID_list = traci.junction.getIDList() for junctionID in
> JunctioID_list: print(str(junctionID))
> traci.junction.subscribeContext(junctionID, tc.CMD_GET_VEHICLE_VARIABLE,
> 10, [tc.VAR_SPEED])** run()*
>
--
*:)*
Bijal Varia
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