Re: [sumo-user] Output (files) values from TraCI

[Harald Schaefer <fechsaer@xxxxxxxxx>]

Hello Lara,

xml2csv.py is an example of a python script, which can read sockets

Regards, Harald

Am 30.09.19 um 11:18 schrieb Lara Codeca:
> Thank you, Jakob.
>
> I'm going to try to use the sockets option. Are there examples? I
> cannot find any. Is the format exactly like the XML file?
>
> Thank you again,
> Lara
>
> On Fri, Sep 27, 2019 at 8:03 PM Jakob Erdmann <namdre.sumo@xxxxxxxxx> wrote:
>> Hello Lara,
>> It wouldn't be too difficult to retrieve data from the tripinfo- and vehroute-device by extending the vehicle.getParameter API (https://sumo.dlr.de/docs/TraCI/Vehicle_Value_Retrieval.html#supported_device_parameters)
>> However, your requirement to get these values when the vehicle exits the simulation is hard to achieve because this also triggers cleanup of the devices.
>> I think the easiest way to get these values at runtime is supply a socket address instead of an output file for each of these output options and then have your script read from these sockets. (https://sumo.dlr.de/docs/Basics/Using_the_Command_Line_Applications.html#writing_files)
>>
>> regards,
>> Jakob
>>
>>
>> Am Fr., 27. Sept. 2019 um 19:39 Uhr schrieb Lara Codeca <lara.codeca@xxxxxxxxx>:
>>> Dear All,
>>>
>>> I need to retrieve the same info that can be dumped in the following files:
>>> * https://sumo.dlr.de/docs/Simulation/Output/TripInfo.html
>>> * https://sumo.dlr.de/docs/Simulation/Output/VehRoutes.html
>>> * https://sumo.dlr.de/docs/Simulation/Output/StopOutput.html
>>>
>>> but I need it to be done during the simulation when the vehicle/person
>>> exits the simulation.
>>> Is there a way to do it using TraCI without having to subscribe to all
>>> the vehicles+people and compute them all by myself? This solution
>>> would not scale, and I need like to keep consistency with sumo for all
>>> the retrievable stats. For example, the timeLoss must be the same in
>>> the sumo output and in my results.
>>>
>>> Any Ideas? I cannot find any API that would help me in doing this, but
>>> I'm willing to try to implement new ones if it's feasible.
>>>
>>> All the Best,
>>> Lara
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