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Re: [sumo-user] question about about the subscription with the traci.constant DISTANCE_REQUEST
Currently, only a circle is available and you have to perform additional filtering yourself.
Other filtering options are being implemented and will be made available in a future release.


2018-09-17 8:40 GMT+02:00 <christian.damdjowabo@xxxxxx>:

Thank you very much Jakob,

 

Another think.

It’s just a circle implemented in the subscriptions-functionalities?

I mean, I give the parameter radius. But I want to know if we can use another metric to get the id of traffic surrounding the EGO-car. Maybe an ellipsoid or another function which take more Information along the street, as across the street.

Because by using the circle the distance along and across the street would be equal. And for some UseCase it’s not good.

 

Br

 

Christian

 

Von: sumo-user-bounces@xxxxxxxxxxx [mailto:sumo-user-bounces@eclipse.org] Im Auftrag von Jakob Erdmann
Gesendet: Montag, 17. September 2018 08:30
An: Sumo project User discussions
Betreff: Re: [sumo-user] question about about the subscription with the traci.constant DISTANCE_REQUEST

 

Hello,

you need to do this in two steps because subscriptions are not supported for functions that require additional arguments.

regards,

Jakob

 

2018-09-17 8:24 GMT+02:00 <christian.damdjowabo@xxxxxx>:

Hello sumo people, Hello Jakob,

 

I have a question about the subscription, of the traci.constant “DISTANCE_REQUEST”. I want to take the distance between Ego and every traffic around the EGO-Vehicle. I tried to do that in one step using “SubcribeContext”.

Here is the command that I used: “traci.vehicle.subscribeContext(‘EGO’, tc.CMD_GET_SIM_VARIABLE, 42, [tc.DISTANCE_REQUEST])”

But I think that the constant “DISTANCE_REQUEST”, need to have two parameter. The vehicles-ids of the two cars. In order to get the distance between this two vehicles. I think it’s why I’m getting “None” as Output of this assertion.

My question is to know it’s someway to get this relative distance of traffic around the ego vehicle to the ego vehicle itself in one step? Or should I do that in two steps:

The first one gets the vehicle Id around the ego vehicle

The second one use the function getdistance2d (ego,traffic), to have the distance between Ego the surrounding vehicle.

 

 

Br

 

Christian


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