Re: [sumo-user] Edge.setEffort() Returning Error

[Mario via sumo-user <sumo-user@xxxxxxxxxxxxxxxxxxxxx>]

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-user@xxxxxxxxxxxxxxxxxxxxx; sumo-user@xxxxxxxxxxx
> 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-user@xxxxxxxxxxxxxxxxxxxxx>:
> 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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