Re: [sumo-dev] Regrading Retrieval of vtype parameter using traci

[<Maria.Armellini@xxxxxx>]

Hi Shantanu,

 

I have tried it myself and saw that when you use .setParameter a new parameter is created. For example, when you call traci.vehicletype.setParameter("c", "maxSpeed", '4.00'), you don’t change the maximum speed parameter, but a new parameter “param:maxSpeed” is created with that value (see picture). If you want to change the maximum speed, you can use .setMaxSpeed(). See VehicleType_Value_Retrieval and  VehicleType_State.

As for the “i” and “d” parameters of your CF model, I think this is still under development, see GitHub-Issue.

 

Regards,

Giuliana

 

Von: sumo-dev <sumo-dev-bounces@xxxxxxxxxxx> Im Auftrag von SHANTANU PHANSE via sumo-dev
Gesendet: Mittwoch, 31. März 2021 15:49
An: sumo-dev@xxxxxxxxxxx
Cc: SHANTANU PHANSE <201911048@xxxxxxxxxxxx>
Betreff: [sumo-dev] Regrading Retrieval of vtype parameter using traci

 

Hello,

 

I have created a new car-following model in SUMO for practice.

 

rou.xml has vtype attribute as follows

 

<vType id = "c" departLane = "best" maxSpeed = "16.67" carFollowModel="W" d = "30" i = "12"/>

------------------------------------------------------------------------------------------------

I aim to change the vtype parameters of maxSpeed, i, d using traci. 

 

The snippet of the code I am using is as follows

 

def run():
 
    steps = 0
   
    while steps < 1000:
        traci.simulationStep()
        steps+=1

 

      #get the parameters 

     if(steps == 5):
           print(traci.vehicletype.getParameterWithKey("c", "d"))
           print(traci.vehicletype.getParameterWithKey("c", "i"))
           print(traci.vehicletype.getParameterWithKey("c", "maxSpeed"))  
       

      #set the parameters at step 1 
        if(steps == 10):
            traci.vehicletype.setParameter('c', 'depth', '0')
            traci.vehicletype.setParameter('c', 'intensity', '0')
            traci.vehicletype.setParameter("c", "maxSpeed", '4.00')
       
 
Print statements Output is as follows:

      ('depth', '')         #parameter name with empty string as value

      ('intensity', '')
       ('maxSpeed', '')

    -------------------------------------------------------------------------------------------------------   

Note: There is no change reflected in the sumo-GUI.

 

Thanks and Regards 

Shantanu Phanse

 

 

 

 

Attachment: param_vType.PNG
Description: param_vType.PNG