How to control SUMO vehicle in Webots

[zhangcong0315]

How to control sumo vehicle in Webots? I tried to transform sumo vehicle from "solid" to "robot" and use controller to control it. But it does not work and report the keyerror: robot. How can we use Traci to control sumo vehicle in the Webots environment?
Expected behavior
A clear and concise description of what you expected to happen.

Screenshots
If applicable, add screenshots to help explain your problem.

System

• Operating System: [e.g., Windows 10, Linux Ubuntu 18.04, macOS Mojave]
• Graphics Card: [e.g., NVIDIA GeForce RTX 2080 11 GB, AMD Radeon RX 580 8GB, etc.]

Additional context
Add any other context about the problem here.

[stefaniapedrazzi]

To control sumo vehicles in Webots using traci you need a Supervisor controller that updates the position and orientation of the vehicles.
So the vehicle can be simple Solid nodes and you don't need to transform them to Robot or to implement a controller program for each vehicle.

I would suggest you to check these sample simulation distributed within the Webots library:
projects/vehicles/worlds/sumo_interface_example.wbt
project/vehicles/projects/worlds/highway_overtake.wbt