Skip to main content

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [List Home]
[sumo-user] Modify position, vel and acceleration of each actor

Hello,

I am trying to modify 1) position 2) velocity and 3) acceleration of each actor within my simulation to prescribed values that I chose.
Sumo version: 1.16.0 - interfaced with flow
What I currently do is
----------------------------
for loop over all the actors

self.k.kernel_api.vehicle.setPreviousSpeed(
vehID=actor_id,
speed=wanted_velocity - wanted_acceleration*simulation_step)  

self.k.vehicle.moveToXY(
    veh_id=actor_id,
    edge_id=actor.edge,
    lane=actor.lane,
    posX=actor.pos_2d[0],
    posY=actor.pos_2d[1],
    angle=self.k.vehicle.get_angle(actor.actor_id),
    keepRoute=1,
)

self.k.kernel_api.vehicle.setAcceleration(
vehID=actor.actor_id,
acceleration=actor.acceleration * 2,
duration=self.sim_step)

end for 

self.k.simulation.simulation_step()
--------------------------------------

With this approach I can successfully set each actor position velocity and accelerations to my values. However it seems the success is really depending on the sequence of steps (for example setting moveToXY prior to setPreviousSpeed results in an unsuccessful final outcome - no error, just not getting what I want).
Therefore, I have the following questions:
0) Is what I am doing 1) feasible and 2) sound, given the above mentioned sequence of commands?
1) I tried to use setSpeed multiple times instead of setPreviousSpeed, but it doesn't work. Can you help me understand why?
2) It seems weird that I have to double my wanted acceleration (see acceleration=actor.acceleration * 2) to get the final wanted result. Why is that happening?

Thanks in advance for the help!

--
Kind regards,
Stefano.

Back to the top