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[sumo-user] Timing difference between TraCI and LibSUMO subscriptions data
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Hello,
My version info:
TraCI VERSION 21
'SUMO 79d8ebc13'
Ubuntu 18.04.6 LTS
A subscribe() call in TraCI seems to take effect immediately, while a subscribe() call in LibSUMO seems to only take effect after a traci.simulationStep() has taken place.
What I mean is that a variable where I store all the subscription results using getAllSubscriptionResults() automatically gets updated the instant I subscribe a new vehicle to some information in TraCI, but that same variable takes another traci.simulationStep() to be updated in LibSUMO.
I have created a working example to produce the behavior attached as a zip with this. All that needs to be done is comment in/out the import so that it picks either traci or libsumo. The relevant code that shows this is in the MyEnv.step() function.
Please advise if what I inferred from the behavior is correct, and if there is any way to get around it. (Make them compatible with both TraCI/LibSUMO?)
Thank you.
Sincerely,
Hriday
Attachment:
traci_libsumo_subs_diff.zip
Description: Zip archive
