When connecting veins and sumo, will the ".py" file created as TraCI not be reflected in veins?

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I am planning to conduct an experiment using an automated driving simulator. The tool I am using is

sumo (1.8.0) veins (5.1) omnet++ (5.6.2)

I have completed all the installation and can run the tutorials for sumo and omnet++.

Now I'm thinking of changing the behavior of the vehicle and implementing inter-vehicle communication.

For this purpose, I found a python program called traci and created a simple one. When I ran it, sumo started up and I confirmed that the behavior of the vehicle was changed.

However, I could not get veins and sumo to work without

veins_launchd -vv -c /c/...... /sumo-gui.exe

After connecting veins and sumo with "veins_launchd -vv -c /c/ /sumo-gui.exe", when I try to run the simulator on the omnet++ side, it doesn't reflect the program I made in python. I was only able to run the simulator before the behavior was changed.

I later understood that traci is on the sumo side and on the omnet++ side. Is it possible that the program created in python only runs sumo?

I think it's because I don't understand the connection between the simulators, but if anyone knows, I would appreciate it.

sumo veins omnet++ python
1 Answers

The connection is simple. SUMO provides an interface (which is called TraCI) and your python script as well as Veins use that interface to communicate with SUMO. While it is possible that multiple external applications use that interface simultaneously (see https://sumo.dlr.de/docs/TraCI.html#multiple_clients) they both have to be adapted to do so. It is probably easy to adapt your python script, adapting Veins might be a little harder but not too hard. You could try to open a ticket here: https://github.com/sommer/veins/issues and ask for support.

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