Re: [sumo-user] Traci ContextSubscription of Vechicle

[Surya Soman <suryasoman43@xxxxxxxxx>]

Thank you Jakob!

On Thu, May 17, 2018, 2:17 PM Jakob Erdmann <namdre.sumo@xxxxxxxxx> wrote:

This is a bug: the ego vehicle is always returned (https://github.com/eclipse/sumo/issues/4088)

When there are more vehicles around, they will be returned as well.

regards,

Jakob

2018-05-15 13:06 GMT+02:00 Surya Soman <suryasoman43@xxxxxxxxx>:

  Thank you Jakob!  The code is working now. 

But unfortunately the vehicle speed and position I'm getting at each step is the ego vehicle's speed and position were I wanted to retrieve the speed and position of  the vehicles around my ego vehicle.

Could you help me with this. Thanks in advance!

Regards,

Surya Soman

On Mon, May 14, 2018 at 8:50 AM, Jakob Erdmann <namdre.sumo@xxxxxxxxx> wrote:

try using curly brackets vor varIDs:
{traci.constants.VAR_SPEED,traci.constants.VAR_POSITION}

2018-05-11 10:16 GMT+02:00 Surya Soman <suryasoman43@xxxxxxxxx>:

Hi ,

I'm a new user of SUMO. As a part of my research, I was trying a code to access the speed and position of the vehicles around my ego vehicle using Traci vehicle contextsubscription command. Given below is the command I used:-

traci.vehicle.subscribeContext('2567#6',...

       traci.constants.CMD_GET_VEHICLE_VARIABLE, 20,...

       [traci.constants.VAR_SPEED,traci.constants.VAR_POSITION]);

It is giving an error :-

Error using vehicle.subscribeContext

The value of 'varIDs' is invalid. It must satisfy the function: iscell.

Error in traci.vehicle.subscribeContext (line 34)

p.parse(vehID, domain, dist, varargin{:})

Error in vehicleconsub (line 58)

       traci.vehicle.subscribeContext('2567#6',...

Could anyone help me with this. Thanks in advance !

Regards,

Surya 

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