How to generate random vehicles during simulation in driving scenario ?

when I follow the web example here Spawn and Despawn ,to genarte the non ego vehicle in driving simulation ,the error occurs

as

Error using driving.scenario.mixin.PropertiesInitializableInConstructor (line 20)
'EntryTime' is not a valid property name for driving.scenario.Actor

Error in driving.scenario.Actor (line 37)
           [e-mail]nConstructor(varargin{:});

Error in drivingScenario/actor (line 161)
a = driving.scenario.Actor(obj, actorID, varargin{:});

Error in Untitled11 (line 25)
nonEgoactor2 = actor(scenario,'ClassID',1, ...

why this error occur ,is the EntryTime nad ExitTime is not a valid attribute for actors or something else?

any sugestion to run this example and genarate the random nonego vehicles in the drivingscenario will be appreciated.

Regards

[Aditya Patil]

Can you share the script that is throwing this error? Also, share the output of version command.

[Muhammad Iqbal]

Hi thansk for your reply;

I want to genertae the nonego vehicel randomly during simulation by spawn and despwn concept to that i follow this code :

scenario = drivingScenario('StopTime',3);
roadCenters = [0 1 0; 53 1 0];
laneSpecification = lanespec([1 1]);
road(scenario,roadCenters,'Lanes',laneSpecification);
roadCenters = [20.3 33.4 0; 20 3 0];
laneSpecification = lanespec(2);
road(scenario,roadCenters,'Lanes',laneSpecification)
%%%%%%%%%%Ego Vehicle%%%%%%%%%%%%%%%%%%
egoVehicle = vehicle(scenario,'ClassID',1, ...
                    'Position',[1.5 2.5 0]);
waypoints = [2 3 0; 13 3 0;
            21 3 0; 31 3 0;
            43 3 0; 47 3 0];
speed = 15;
trajectory(egoVehicle,waypoints,speed)
%%%%%%%%non Ego Vehicle%%%%%%%%%%%%%%%
car = vehicle(scenario,'ClassID',1, ...
                'Position',[22 30 0],'EntryTime',0.8,'ExitTime',2);   
waypoints = [22 30 0; 22 23 0;
            22 13 0; 22 7 0;
            18 -0.3 0; 12 -0.8 0; 3 -0.8 0];
speed = 35;
trajectory(car,waypoints,speed)

here is the output from version command:

Error using driving.scenario.mixin.PropertiesInitializableInConstructor (line 20)
'EntryTime' is not a valid property name for driving.scenario.Vehicle

Error in driving.scenario.Actor (line 37)
           [e-mail]nConstructor(varargin{:});

Error in driving.scenario.Vehicle (line 16)
            [e-mail](scenario, id, varargin{:});

Error in drivingScenario/vehicle (line 167)
v = driving.scenario.Vehicle(obj, actorID, varargin{:});

Error in Untitled11 (line 18)
car = vehicle(scenario,'ClassID',1, ...
    

thanks

[Rik]

That is not the output of the version command. Put the line below in your command window and paste the result in a comment.

clc,version

[Muhammad Iqbal]

here it is :

ans =

    '9.8.0.1323502 (R2020a)'
thanks

Answer 1

[Raynier Suresh]

Hi, The Actor Spawn and Despawn feature is available from the R2020b version. Thus in R2020a the "EntryTime" and "ExitTime" property will not be there, that is the reason for the error.

The R2020a documentation for the vehicle function is https://www.mathworks.com/help/releases/R2020a/driving/ref/drivingscenario.vehicle.html