Hi Jonathan,
you've found a bug in the traas code. The method setEffort is
incompatible with the arguments of the traci server.
In the source file Edge.java you can add the following snippet:
public static SumoCommand setEffort(String edgeID, double effort, int
begin, int end){
Object[] array = new Object[]{begin, end, effort};
return new SumoCommand(Constants.CMD_SET_EDGE_VARIABLE,
Constants.VAR_EDGE_EFFORT, edgeID, array);
}
It has also been fixed in the latest GIT version of traas
(https://github.com/DLR-TS/sumo/blob/master/tools/contributed/traas/src/de/tudresden/sumo/cmd/Edge.java).
Best regards,
Mario
Am 21.03.2018 um 20:23 schrieb Jonathan Harper via sumo-user:
Hello Jakob,
Below is a reproducible example using TraaS.
public static void main(String[] args) {
SumoTraciConnection conn = new SumoTraciConnection(sumo-gui,
config_file);
conn.addOption("step-length", "0.1"); //timestep 100 ms
try{
conn.runServer();
conn.do_timestep();
conn.do_job_set(Vehicle.add("vehicle", "vehicleType", "route", 0,
1, 1, (byte) 0));
conn.do_job_set(Vehicle.changeTarget("vehicle", "edgeToTarget"));
//This is where the error occurs
conn.do_job_set(Edge.setEffort("edgeToSetEffort", 1));
for(int counter=0; counter<5000; counter++){
conn.do_timestep();
}
conn.close();
} catch(Exception exception){
exception.printStackTrace();}
}
The simulation runs fine without
‘conn.do_job_set(Edge.setEffort("edgeToSetEffort", 1));’
Also, ‘conn.do_job_set(Vehicle.setEffort("vehicle", 0, 5000, "edge", 1))’ works
fine, however, I’d like to set the effort for the edges globally.
Thanks,
Jonathan
From: Jakob Erdmann
Sent: 21 March 2018 18:51
To: Jonathan Harper
Cc: sumo-u...@lists.sourceforge.net; sumo-user@eclipse.org
Subject: Re: [sumo-user] Edge.setEffort() Returning Error
Hello
1) this is quite strange. The last time i saw something like this it came from
multiple traci threads that were trying to talk to sumo at the same time. Can
you reproduce this with a single traci thread? If so, please send me a minimal
scenario.
2) yes.
regards,
Jakob
2018-03-20 22:03 GMT+01:00 Jonathan Harper via sumo-user
<sumo-u...@lists.sourceforge.net>:
Hello,
I’m currently using TraaS to interface with SUMO. I am attempting to reroute a
vehicle and hope to make it change path by setting an effort to an edge (I
believe this is the equivalent of setting a ‘weight’ to that edge), this effort
is calculated from the congestion + other metrics.
1. When setting an edge using ‘conn.do_job_set(Edge.setEffort("edge1", 1.5))’
I receive the errors “Unexpected command and status IDs match: expected 202, got 196”
given by Traci (TraaS), and “Error: Answered with error to command 0xc4: Setting effort
requires a compound object.” given by the SUMO client.
Is there anything more to this? Is the syntax wrong?
2. When setting an effort for a vehicle Vehicle.setEffort(), is this simply an
effort given to an edge for a period of time exclusive to this vehicle?
Many thanks,
Jonathan
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