Re: [sumo-user] traci.vehicle.getDistance() crashes SUMO

[Jakob Erdmann via sumo-user <sumo-user@xxxxxxxxxxxxxxxxxxxxx>]

Hello,
traci4matlab does not yet support all parts of the TraCI API. You can look
inside the folder umo/tools/contributed/traci4matlab/+traci/+vehicle to see
which of the vehicle functions are currently implemented.
If you need a particular function, ask Andres, or better write it yourself
and send him a patch so he can add it.

regards,
Jakob

PS: to get the current vehicle acceleration you need to record the speed
from the previous step and compare with the speed from the current step.

2017-08-13 17:50 GMT+02:00 Selva Ganesha via sumo-user <
sumo-user@xxxxxxxxxxxxxxxxxxxxx>:

> Good day,
>
> I've been running a few of traci's functions to obtain data, however
> traci.vehicle.getDistance() does not work. The attached picture shows the
> error I obtain from Matlab.
>
> When it reaches this line of the code, SUMO freezes and has to be shut down
> via the task manager. Please note that traci.vehicle.getDistance() was not
> available in the traci_test2.m file and I found it through the SUMO wiki.
>
> Is this because this function no longer works? Is there an alternative
> method to get the distance of the vehicle? I hope to monitor the distance
> the vehicle covers and the general distance from the first edge until its
> last edge via Matlab.
>
> Appreciate the helping hand~
>
> Cheers,
> G
>
> P.S. A bonus question, is there a way to monitor the acceleration and
> deceleration of the vehicle? Both traci.vehicle.getAccel() and
> traci.vehicle.getDecel() seem to provide only the maximum values. Does it
> require division of the instantaneous speed value against time or
> differentiate the speed curve to obtain the acceleration as an alternative
> method?
>
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